obs-studio/UI/window-basic-main.cpp

/******************************************************************************
    Copyright (C) 2013-2015 by Hugh Bailey <[email protected]>
                               Zachary Lund <[email protected]>
                               Philippe Groarke <[email protected]>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/

#include <time.h>
#include <obs.hpp>
#include <QGuiApplication>
#include <QMessageBox>
#include <QShowEvent>
#include <QDesktopServices>
#include <QFileDialog>
#include <QDesktopWidget>
#include <QRect>
#include <QScreen>

#include <util/dstr.h>
#include <util/util.hpp>
#include <util/platform.h>
#include <util/profiler.hpp>
#include <graphics/math-defs.h>

#include "obs-app.hpp"
#include "platform.hpp"
#include "visibility-item-widget.hpp"
#include "item-widget-helpers.hpp"
#include "window-basic-settings.hpp"
#include "window-namedialog.hpp"
#include "window-basic-source-select.hpp"
#include "window-basic-main.hpp"
#include "window-basic-main-outputs.hpp"
#include "window-basic-properties.hpp"
#include "window-log-reply.hpp"
#include "window-projector.hpp"
#include "window-remux.hpp"
#include "qt-wrappers.hpp"
#include "display-helpers.hpp"
#include "volume-control.hpp"
#include "remote-text.hpp"

#include "ui_OBSBasic.h"

#include <fstream>
#include <sstream>

#include <QScreen>
#include <QWindow>

using namespace std;

namespace {

template <typename OBSRef>
struct SignalContainer {
	OBSRef ref;
	vector<shared_ptr<OBSSignal>> handlers;
};

}

Q_DECLARE_METATYPE(OBSScene);
Q_DECLARE_METATYPE(OBSSceneItem);
Q_DECLARE_METATYPE(OBSSource);
Q_DECLARE_METATYPE(obs_order_movement);
Q_DECLARE_METATYPE(SignalContainer<OBSScene>);

template <typename T>
static T GetOBSRef(QListWidgetItem *item)
{
	return item->data(static_cast<int>(QtDataRole::OBSRef)).value<T>();
}

template <typename T>
static void SetOBSRef(QListWidgetItem *item, T &&val)
{
	item->setData(static_cast<int>(QtDataRole::OBSRef),
			QVariant::fromValue(val));
}

static void AddExtraModulePaths()
{
	char base_module_dir[512];
#if defined(_WIN32) || defined(__APPLE__)
	int ret = GetProgramDataPath(base_module_dir, sizeof(base_module_dir),
			"obs-studio/plugins/%module%");
#else
	int ret = GetConfigPath(base_module_dir, sizeof(base_module_dir),
			"obs-studio/plugins/%module%");
#endif

	if (ret <= 0)
		return;

	string path = (char*)base_module_dir;
#if defined(__APPLE__)
	obs_add_module_path((path + "/bin").c_str(), (path + "/data").c_str());
#elif ARCH_BITS == 64
	obs_add_module_path((path + "/bin/64bit").c_str(),
			(path + "/data").c_str());
#else
	obs_add_module_path((path + "/bin/32bit").c_str(),
			(path + "/data").c_str());
#endif
}

static QList<QKeySequence> DeleteKeys;

OBSBasic::OBSBasic(QWidget *parent)
	: OBSMainWindow  (parent),
	  ui             (new Ui::OBSBasic)
{
	setAcceptDrops(true);

	ui->setupUi(this);
	ui->previewDisabledLabel->setVisible(false);

	copyActionsDynamicProperties();

	ui->sources->setItemDelegate(new VisibilityItemDelegate(ui->sources));

	const char *geometry = config_get_string(App()->GlobalConfig(),
			"BasicWindow", "geometry");
	if (geometry != NULL) {
		QByteArray byteArray = QByteArray::fromBase64(
				QByteArray(geometry));
		restoreGeometry(byteArray);

		QRect windowGeometry = normalGeometry();
		if (!WindowPositionValid(windowGeometry)) {
			QRect rect = App()->desktop()->geometry();
			setGeometry(QStyle::alignedRect(
						Qt::LeftToRight,
						Qt::AlignCenter,
						size(), rect));
		}
	}

	char styleSheetPath[512];
	int ret = GetProfilePath(styleSheetPath, sizeof(styleSheetPath),
			"stylesheet.qss");
	if (ret > 0) {
		if (QFile::exists(styleSheetPath)) {
			QString path = QString("file:///") +
				QT_UTF8(styleSheetPath);
			App()->setStyleSheet(path);
		}
	}

	qRegisterMetaType<OBSScene>    ("OBSScene");
	qRegisterMetaType<OBSSceneItem>("OBSSceneItem");
	qRegisterMetaType<OBSSource>   ("OBSSource");
	qRegisterMetaType<obs_hotkey_id>("obs_hotkey_id");

	qRegisterMetaTypeStreamOperators<
		std::vector<std::shared_ptr<OBSSignal>>>(
				"std::vector<std::shared_ptr<OBSSignal>>");
	qRegisterMetaTypeStreamOperators<OBSScene>("OBSScene");
	qRegisterMetaTypeStreamOperators<OBSSceneItem>("OBSSceneItem");

	ui->scenes->setAttribute(Qt::WA_MacShowFocusRect, false);
	ui->sources->setAttribute(Qt::WA_MacShowFocusRect, false);

	auto displayResize = [this]() {
		struct obs_video_info ovi;

		if (obs_get_video_info(&ovi))
			ResizePreview(ovi.base_width, ovi.base_height);
	};

	connect(windowHandle(), &QWindow::screenChanged, displayResize);
	connect(ui->preview, &OBSQTDisplay::DisplayResized, displayResize);

	installEventFilter(CreateShortcutFilter());

	stringstream name;
	name << "OBS " << App()->GetVersionString();
	blog(LOG_INFO, "%s", name.str().c_str());
	blog(LOG_INFO, "---------------------------------");

	UpdateTitleBar();

	connect(ui->scenes->itemDelegate(),
			SIGNAL(closeEditor(QWidget*,
					QAbstractItemDelegate::EndEditHint)),
			this,
			SLOT(SceneNameEdited(QWidget*,
					QAbstractItemDelegate::EndEditHint)));

	connect(ui->sources->itemDelegate(),
			SIGNAL(closeEditor(QWidget*,
					QAbstractItemDelegate::EndEditHint)),
			this,
			SLOT(SceneItemNameEdited(QWidget*,
					QAbstractItemDelegate::EndEditHint)));

	cpuUsageInfo = os_cpu_usage_info_start();
	cpuUsageTimer = new QTimer(this);
	connect(cpuUsageTimer, SIGNAL(timeout()),
			ui->statusbar, SLOT(UpdateCPUUsage()));
	cpuUsageTimer->start(3000);

	DeleteKeys =
#ifdef __APPLE__
		QList<QKeySequence>{{Qt::Key_Backspace}} <<
#endif
		QKeySequence::keyBindings(QKeySequence::Delete);

#ifdef __APPLE__
	ui->actionRemoveSource->setShortcuts(DeleteKeys);
	ui->actionRemoveScene->setShortcuts(DeleteKeys);

	ui->action_Settings->setMenuRole(QAction::PreferencesRole);
	ui->actionE_xit->setMenuRole(QAction::QuitRole);
#endif

	auto addNudge = [this](const QKeySequence &seq, const char *s)
	{
		QAction *nudge = new QAction(ui->preview);
		nudge->setShortcut(seq);
		nudge->setShortcutContext(Qt::WidgetShortcut);
		ui->preview->addAction(nudge);
		connect(nudge, SIGNAL(triggered()), this, s);
	};

	addNudge(Qt::Key_Up, SLOT(NudgeUp()));
	addNudge(Qt::Key_Down, SLOT(NudgeDown()));
	addNudge(Qt::Key_Left, SLOT(NudgeLeft()));
	addNudge(Qt::Key_Right, SLOT(NudgeRight()));
}

static void SaveAudioDevice(const char *name, int channel, obs_data_t *parent,
		vector<OBSSource> &audioSources)
{
	obs_source_t *source = obs_get_output_source(channel);
	if (!source)
		return;

	audioSources.push_back(source);

	obs_data_t *data = obs_save_source(source);

	obs_data_set_obj(parent, name, data);

	obs_data_release(data);
	obs_source_release(source);
}

static obs_data_t *GenerateSaveData(obs_data_array_t *sceneOrder,
		obs_data_array_t *quickTransitionData, int transitionDuration,
		obs_data_array_t *transitions,
		OBSScene &scene, OBSSource &curProgramScene)
{
	obs_data_t *saveData = obs_data_create();

	vector<OBSSource> audioSources;
	audioSources.reserve(5);

	SaveAudioDevice(DESKTOP_AUDIO_1, 1, saveData, audioSources);
	SaveAudioDevice(DESKTOP_AUDIO_2, 2, saveData, audioSources);
	SaveAudioDevice(AUX_AUDIO_1,     3, saveData, audioSources);
	SaveAudioDevice(AUX_AUDIO_2,     4, saveData, audioSources);
	SaveAudioDevice(AUX_AUDIO_3,     5, saveData, audioSources);

	auto FilterAudioSources = [&](obs_source_t *source)
	{
		return find(begin(audioSources), end(audioSources), source) ==
				end(audioSources);
	};
	using FilterAudioSources_t = decltype(FilterAudioSources);

	obs_data_array_t *sourcesArray = obs_save_sources_filtered(
			[](void *data, obs_source_t *source)
	{
		return (*static_cast<FilterAudioSources_t*>(data))(source);
	}, static_cast<void*>(&FilterAudioSources));

	obs_source_t *transition = obs_get_output_source(0);
	obs_source_t *currentScene = obs_scene_get_source(scene);
	const char   *sceneName   = obs_source_get_name(currentScene);
	const char   *programName = obs_source_get_name(curProgramScene);

	const char *sceneCollection = config_get_string(App()->GlobalConfig(),
			"Basic", "SceneCollection");

	obs_data_set_string(saveData, "current_scene", sceneName);
	obs_data_set_string(saveData, "current_program_scene", programName);
	obs_data_set_array(saveData, "scene_order", sceneOrder);
	obs_data_set_string(saveData, "name", sceneCollection);
	obs_data_set_array(saveData, "sources", sourcesArray);
	obs_data_set_array(saveData, "quick_transitions", quickTransitionData);
	obs_data_set_array(saveData, "transitions", transitions);
	obs_data_array_release(sourcesArray);

	obs_data_set_string(saveData, "current_transition",
			obs_source_get_name(transition));
	obs_data_set_int(saveData, "transition_duration", transitionDuration);
	obs_source_release(transition);

	return saveData;
}

void OBSBasic::copyActionsDynamicProperties()
{
	// Themes need the QAction dynamic properties
	for (QAction *x : ui->scenesToolbar->actions()) {
		QWidget* temp = ui->scenesToolbar->widgetForAction(x);

		for (QByteArray &y : x->dynamicPropertyNames()) {
			temp->setProperty(y, x->property(y));
		}
	}

	for (QAction *x : ui->sourcesToolbar->actions()) {
		QWidget* temp = ui->sourcesToolbar->widgetForAction(x);

		for (QByteArray &y : x->dynamicPropertyNames()) {
			temp->setProperty(y, x->property(y));
		}
	}
}

void OBSBasic::ClearVolumeControls()
{
	VolControl *control;

	for (size_t i = 0; i < volumes.size(); i++) {
		control = volumes[i];
		delete control;
	}

	volumes.clear();
}

obs_data_array_t *OBSBasic::SaveSceneListOrder()
{
	obs_data_array_t *sceneOrder = obs_data_array_create();

	for (int i = 0; i < ui->scenes->count(); i++) {
		obs_data_t *data = obs_data_create();
		obs_data_set_string(data, "name",
				QT_TO_UTF8(ui->scenes->item(i)->text()));
		obs_data_array_push_back(sceneOrder, data);
		obs_data_release(data);
	}

	return sceneOrder;
}

void OBSBasic::Save(const char *file)
{
	OBSScene scene = GetCurrentScene();
	OBSSource curProgramScene = OBSGetStrongRef(programScene);
	if (!curProgramScene)
		curProgramScene = obs_scene_get_source(scene);

	obs_data_array_t *sceneOrder = SaveSceneListOrder();
	obs_data_array_t *transitions = SaveTransitions();
	obs_data_array_t *quickTrData = SaveQuickTransitions();
	obs_data_t *saveData  = GenerateSaveData(sceneOrder, quickTrData,
			ui->transitionDuration->value(), transitions,
			scene, curProgramScene);

	obs_data_set_bool(saveData, "preview_locked", ui->preview->Locked());
	obs_data_set_int(saveData, "scaling_mode",
			static_cast<uint32_t>(ui->preview->GetScalingMode()));

	if (api) {
		obs_data_t *moduleObj = obs_data_create();
		api->on_save(moduleObj);
		obs_data_set_obj(saveData, "modules", moduleObj);
		obs_data_release(moduleObj);
	}

	if (!obs_data_save_json_safe(saveData, file, "tmp", "bak"))
		blog(LOG_ERROR, "Could not save scene data to %s", file);

	obs_data_release(saveData);
	obs_data_array_release(sceneOrder);
	obs_data_array_release(quickTrData);
	obs_data_array_release(transitions);
}

static void LoadAudioDevice(const char *name, int channel, obs_data_t *parent)
{
	obs_data_t *data = obs_data_get_obj(parent, name);
	if (!data)
		return;

	obs_source_t *source = obs_load_source(data);
	if (source) {
		obs_set_output_source(channel, source);
		obs_source_release(source);
	}

	obs_data_release(data);
}

static inline bool HasAudioDevices(const char *source_id)
{
	const char *output_id = source_id;
	obs_properties_t *props = obs_get_source_properties(output_id);
	size_t count = 0;

	if (!props)
		return false;

	obs_property_t *devices = obs_properties_get(props, "device_id");
	if (devices)
		count = obs_property_list_item_count(devices);

	obs_properties_destroy(props);

	return count != 0;
}

void OBSBasic::CreateFirstRunSources()
{
	bool hasDesktopAudio = HasAudioDevices(App()->OutputAudioSource());
	bool hasInputAudio   = HasAudioDevices(App()->InputAudioSource());

	if (hasDesktopAudio)
		ResetAudioDevice(App()->OutputAudioSource(), "default",
				Str("Basic.DesktopDevice1"), 1);
	if (hasInputAudio)
		ResetAudioDevice(App()->InputAudioSource(), "default",
				Str("Basic.AuxDevice1"), 3);
}

void OBSBasic::CreateDefaultScene(bool firstStart)
{
	disableSaving++;

	ClearSceneData();
	InitDefaultTransitions();
	CreateDefaultQuickTransitions();
	ui->transitionDuration->setValue(300);
	SetTransition(fadeTransition);

	obs_scene_t  *scene  = obs_scene_create(Str("Basic.Scene"));

	if (firstStart)
		CreateFirstRunSources();

	AddScene(obs_scene_get_source(scene));
	SetCurrentScene(scene, true);
	obs_scene_release(scene);

	disableSaving--;
}

static void ReorderItemByName(QListWidget *lw, const char *name, int newIndex)
{
	for (int i = 0; i < lw->count(); i++) {
		QListWidgetItem *item = lw->item(i);

		if (strcmp(name, QT_TO_UTF8(item->text())) == 0) {
			if (newIndex != i) {
				item = lw->takeItem(i);
				lw->insertItem(newIndex, item);
			}
			break;
		}
	}
}

void OBSBasic::LoadSceneListOrder(obs_data_array_t *array)
{
	size_t num = obs_data_array_count(array);

	for (size_t i = 0; i < num; i++) {
		obs_data_t *data = obs_data_array_item(array, i);
		const char *name = obs_data_get_string(data, "name");

		ReorderItemByName(ui->scenes, name, (int)i);

		obs_data_release(data);
	}
}

static void LogFilter(obs_source_t*, obs_source_t *filter, void *v_val)
{
	const char *name = obs_source_get_name(filter);
	const char *id = obs_source_get_id(filter);
	int val = (int)(intptr_t)v_val;
	string indent;

	for (int i = 0; i < val; i++)
		indent += "    ";

	blog(LOG_INFO, "%s- filter: '%s' (%s)", indent.c_str(), name, id);
}

static bool LogSceneItem(obs_scene_t*, obs_sceneitem_t *item, void*)
{
	obs_source_t *source = obs_sceneitem_get_source(item);
	const char *name = obs_source_get_name(source);
	const char *id = obs_source_get_id(source);

	blog(LOG_INFO, "    - source: '%s' (%s)", name, id);

	obs_source_enum_filters(source, LogFilter, (void*)(intptr_t)2);
	return true;
}

void OBSBasic::LogScenes()
{
	blog(LOG_INFO, "------------------------------------------------");
	blog(LOG_INFO, "Loaded scenes:");

	for (int i = 0; i < ui->scenes->count(); i++) {
		QListWidgetItem *item = ui->scenes->item(i);
		OBSScene scene = GetOBSRef<OBSScene>(item);

		obs_source_t *source = obs_scene_get_source(scene);
		const char *name = obs_source_get_name(source);

		blog(LOG_INFO, "- scene '%s':", name);
		obs_scene_enum_items(scene, LogSceneItem, nullptr);
		obs_source_enum_filters(source, LogFilter, (void*)(intptr_t)1);
	}

	blog(LOG_INFO, "------------------------------------------------");
}

void OBSBasic::Load(const char *file)
{
	if (!file || !os_file_exists(file)) {
		blog(LOG_INFO, "No scene file found, creating default scene");
		CreateDefaultScene(true);
		SaveProject();
		return;
	}

	disableSaving++;

	obs_data_t *data = obs_data_create_from_json_file_safe(file, "bak");
	if (!data) {
		disableSaving--;
		blog(LOG_ERROR, "Failed to load '%s', creating default scene",
				file);
		CreateDefaultScene(true);
		SaveProject();
		return;
	}

	ClearSceneData();
	InitDefaultTransitions();

	obs_data_array_t *sceneOrder = obs_data_get_array(data, "scene_order");
	obs_data_array_t *sources    = obs_data_get_array(data, "sources");
	obs_data_array_t *transitions= obs_data_get_array(data, "transitions");
	const char       *sceneName = obs_data_get_string(data,
			"current_scene");
	const char       *programSceneName = obs_data_get_string(data,
			"current_program_scene");
	const char       *transitionName = obs_data_get_string(data,
			"current_transition");

	if (!opt_starting_scene.empty()) {
		programSceneName = opt_starting_scene.c_str();
		if (!IsPreviewProgramMode())
			sceneName = opt_starting_scene.c_str();
	}

	int newDuration = obs_data_get_int(data, "transition_duration");
	if (!newDuration)
		newDuration = 300;

	if (!transitionName)
		transitionName = obs_source_get_name(fadeTransition);

	const char *curSceneCollection = config_get_string(
			App()->GlobalConfig(), "Basic", "SceneCollection");

	obs_data_set_default_string(data, "name", curSceneCollection);

	const char       *name = obs_data_get_string(data, "name");
	obs_source_t     *curScene;
	obs_source_t     *curProgramScene;
	obs_source_t     *curTransition;

	if (!name || !*name)
		name = curSceneCollection;

	LoadAudioDevice(DESKTOP_AUDIO_1, 1, data);
	LoadAudioDevice(DESKTOP_AUDIO_2, 2, data);
	LoadAudioDevice(AUX_AUDIO_1,     3, data);
	LoadAudioDevice(AUX_AUDIO_2,     4, data);
	LoadAudioDevice(AUX_AUDIO_3,     5, data);

	obs_load_sources(sources, OBSBasic::SourceLoaded, this);

	if (transitions)
		LoadTransitions(transitions);
	if (sceneOrder)
		LoadSceneListOrder(sceneOrder);

	obs_data_array_release(transitions);

	curTransition = FindTransition(transitionName);
	if (!curTransition)
		curTransition = fadeTransition;

	ui->transitionDuration->setValue(newDuration);
	SetTransition(curTransition);

retryScene:
	curScene = obs_get_source_by_name(sceneName);
	curProgramScene = obs_get_source_by_name(programSceneName);

	/* if the starting scene command line parameter is bad at all,
	 * fall back to original settings */
	if (!opt_starting_scene.empty() && (!curScene || !curProgramScene)) {
		sceneName = obs_data_get_string(data, "current_scene");
		programSceneName = obs_data_get_string(data,
				"current_program_scene");
		obs_source_release(curScene);
		obs_source_release(curProgramScene);
		opt_starting_scene.clear();
		goto retryScene;
	}

	if (!curProgramScene) {
		curProgramScene = curScene;
		obs_source_addref(curScene);
	}

	SetCurrentScene(curScene, true);
	if (IsPreviewProgramMode())
		TransitionToScene(curProgramScene, true);
	obs_source_release(curScene);
	obs_source_release(curProgramScene);

	obs_data_array_release(sources);
	obs_data_array_release(sceneOrder);

	std::string file_base = strrchr(file, '/') + 1;
	file_base.erase(file_base.size() - 5, 5);

	config_set_string(App()->GlobalConfig(), "Basic", "SceneCollection",
			name);
	config_set_string(App()->GlobalConfig(), "Basic", "SceneCollectionFile",
			file_base.c_str());

	obs_data_array_t *quickTransitionData = obs_data_get_array(data,
			"quick_transitions");
	LoadQuickTransitions(quickTransitionData);
	obs_data_array_release(quickTransitionData);

	RefreshQuickTransitions();

	bool previewLocked = obs_data_get_bool(data, "preview_locked");
	ui->preview->SetLocked(previewLocked);
	ui->actionLockPreview->setChecked(previewLocked);

	ScalingMode previewScaling = static_cast<ScalingMode>(
			obs_data_get_int(data, "scaling_mode"));
	switch (previewScaling) {
	case ScalingMode::Window:
	case ScalingMode::Canvas:
	case ScalingMode::Output:
		break;
	default:
		previewScaling = ScalingMode::Window;
	}

	ui->preview->SetScaling(previewScaling);

	if (api) {
		obs_data_t *modulesObj = obs_data_get_obj(data, "modules");
		api->on_load(modulesObj);
		obs_data_release(modulesObj);
	}

	obs_data_release(data);

	if (!opt_starting_scene.empty())
		opt_starting_scene.clear();

	if (opt_start_streaming) {
		QMetaObject::invokeMethod(this, "StartStreaming",
				Qt::QueuedConnection);
		opt_start_streaming = false;
	}

	if (opt_start_recording) {
		QMetaObject::invokeMethod(this, "StartRecording",
				Qt::QueuedConnection);
		opt_start_recording = false;
	}

	LogScenes();

	disableSaving--;
}

#define SERVICE_PATH "service.json"

void OBSBasic::SaveService()
{
	if (!service)
		return;

	char serviceJsonPath[512];
	int ret = GetProfilePath(serviceJsonPath, sizeof(serviceJsonPath),
			SERVICE_PATH);
	if (ret <= 0)
		return;

	obs_data_t *data     = obs_data_create();
	obs_data_t *settings = obs_service_get_settings(service);

	obs_data_set_string(data, "type", obs_service_get_type(service));
	obs_data_set_obj(data, "settings", settings);

	if (!obs_data_save_json_safe(data, serviceJsonPath, "tmp", "bak"))
		blog(LOG_WARNING, "Failed to save service");

	obs_data_release(settings);
	obs_data_release(data);
}

bool OBSBasic::LoadService()
{
	const char *type;

	char serviceJsonPath[512];
	int ret = GetProfilePath(serviceJsonPath, sizeof(serviceJsonPath),
			SERVICE_PATH);
	if (ret <= 0)
		return false;

	obs_data_t *data = obs_data_create_from_json_file_safe(serviceJsonPath,
			"bak");

	obs_data_set_default_string(data, "type", "rtmp_common");
	type = obs_data_get_string(data, "type");

	obs_data_t *settings = obs_data_get_obj(data, "settings");
	obs_data_t *hotkey_data = obs_data_get_obj(data, "hotkeys");

	service = obs_service_create(type, "default_service", settings,
			hotkey_data);
	obs_service_release(service);

	obs_data_release(hotkey_data);
	obs_data_release(settings);
	obs_data_release(data);

	return !!service;
}

bool OBSBasic::InitService()
{
	ProfileScope("OBSBasic::InitService");

	if (LoadService())
		return true;

	service = obs_service_create("rtmp_common", "default_service", nullptr,
			nullptr);
	if (!service)
		return false;
	obs_service_release(service);

	return true;
}

static const double scaled_vals[] =
{
	1.0,
	1.25,
	(1.0/0.75),
	1.5,
	(1.0/0.6),
	1.75,
	2.0,
	2.25,
	2.5,
	2.75,
	3.0,
	0.0
};

bool OBSBasic::InitBasicConfigDefaults()
{
	QList<QScreen*> screens = QGuiApplication::screens();

	if (!screens.size()) {
		OBSErrorBox(NULL, "There appears to be no monitors.  Er, this "
		                  "technically shouldn't be possible.");
		return false;
	}

	QScreen *primaryScreen = QGuiApplication::primaryScreen();

	uint32_t cx = primaryScreen->size().width();
	uint32_t cy = primaryScreen->size().height();

	/* ----------------------------------------------------- */
	/* move over mixer values in advanced if older config */
	if (config_has_user_value(basicConfig, "AdvOut", "RecTrackIndex") &&
	    !config_has_user_value(basicConfig, "AdvOut", "RecTracks")) {

		uint64_t track = config_get_uint(basicConfig, "AdvOut",
				"RecTrackIndex");
		track = 1ULL << (track - 1);
		config_set_uint(basicConfig, "AdvOut", "RecTracks", track);
		config_remove_value(basicConfig, "AdvOut", "RecTrackIndex");
		config_save_safe(basicConfig, "tmp", nullptr);
	}

	/* ----------------------------------------------------- */

	config_set_default_string(basicConfig, "Output", "Mode", "Simple");

	config_set_default_string(basicConfig, "SimpleOutput", "FilePath",
			GetDefaultVideoSavePath().c_str());
	config_set_default_string(basicConfig, "SimpleOutput", "RecFormat",
			"flv");
	config_set_default_uint  (basicConfig, "SimpleOutput", "VBitrate",
			2500);
	config_set_default_string(basicConfig, "SimpleOutput", "StreamEncoder",
			SIMPLE_ENCODER_X264);
	config_set_default_uint  (basicConfig, "SimpleOutput", "ABitrate", 160);
	config_set_default_bool  (basicConfig, "SimpleOutput", "UseAdvanced",
			false);
	config_set_default_bool  (basicConfig, "SimpleOutput", "EnforceBitrate",
			true);
	config_set_default_string(basicConfig, "SimpleOutput", "Preset",
			"veryfast");
	config_set_default_string(basicConfig, "SimpleOutput", "RecQuality",
			"Stream");
	config_set_default_string(basicConfig, "SimpleOutput", "RecEncoder",
			SIMPLE_ENCODER_X264);
	config_set_default_bool(basicConfig, "SimpleOutput", "RecRB", false);
	config_set_default_int(basicConfig, "SimpleOutput", "RecRBTime", 20);
	config_set_default_int(basicConfig, "SimpleOutput", "RecRBSize", 512);

	config_set_default_bool  (basicConfig, "AdvOut", "ApplyServiceSettings",
			true);
	config_set_default_bool  (basicConfig, "AdvOut", "UseRescale", false);
	config_set_default_uint  (basicConfig, "AdvOut", "TrackIndex", 1);
	config_set_default_string(basicConfig, "AdvOut", "Encoder", "obs_x264");

	config_set_default_string(basicConfig, "AdvOut", "RecType", "Standard");

	config_set_default_string(basicConfig, "AdvOut", "RecFilePath",
			GetDefaultVideoSavePath().c_str());
	config_set_default_string(basicConfig, "AdvOut", "RecFormat", "flv");
	config_set_default_bool  (basicConfig, "AdvOut", "RecUseRescale",
			false);
	config_set_default_uint  (basicConfig, "AdvOut", "RecTracks", (1<<0));
	config_set_default_string(basicConfig, "AdvOut", "RecEncoder",
			"none");

	config_set_default_bool  (basicConfig, "AdvOut", "FFOutputToFile",
			true);
	config_set_default_string(basicConfig, "AdvOut", "FFFilePath",
			GetDefaultVideoSavePath().c_str());
	config_set_default_string(basicConfig, "AdvOut", "FFExtension", "mp4");
	config_set_default_uint  (basicConfig, "AdvOut", "FFVBitrate", 2500);
	config_set_default_bool  (basicConfig, "AdvOut", "FFUseRescale",
			false);
	config_set_default_uint  (basicConfig, "AdvOut", "FFABitrate", 160);
	config_set_default_uint  (basicConfig, "AdvOut", "FFAudioTrack", 1);

	config_set_default_uint  (basicConfig, "AdvOut", "Track1Bitrate", 160);
	config_set_default_uint  (basicConfig, "AdvOut", "Track2Bitrate", 160);
	config_set_default_uint  (basicConfig, "AdvOut", "Track3Bitrate", 160);
	config_set_default_uint  (basicConfig, "AdvOut", "Track4Bitrate", 160);

	config_set_default_uint  (basicConfig, "Video", "BaseCX",   cx);
	config_set_default_uint  (basicConfig, "Video", "BaseCY",   cy);

	config_set_default_string(basicConfig, "Output", "FilenameFormatting",
			"%CCYY-%MM-%DD %hh-%mm-%ss");

	config_set_default_bool  (basicConfig, "Output", "DelayEnable", false);
	config_set_default_uint  (basicConfig, "Output", "DelaySec", 20);
	config_set_default_bool  (basicConfig, "Output", "DelayPreserve", true);

	config_set_default_bool  (basicConfig, "Output", "Reconnect", true);
	config_set_default_uint  (basicConfig, "Output", "RetryDelay", 10);
	config_set_default_uint  (basicConfig, "Output", "MaxRetries", 20);

	config_set_default_string(basicConfig, "Output", "BindIP", "default");

	int i = 0;
	uint32_t scale_cx = cx;
	uint32_t scale_cy = cy;

	/* use a default scaled resolution that has a pixel count no higher
	 * than 1280x720 */
	while (((scale_cx * scale_cy) > (1280 * 720)) && scaled_vals[i] > 0.0) {
		double scale = scaled_vals[i++];
		scale_cx = uint32_t(double(cx) / scale);
		scale_cy = uint32_t(double(cy) / scale);
	}

	config_set_default_uint  (basicConfig, "Video", "OutputCX", scale_cx);
	config_set_default_uint  (basicConfig, "Video", "OutputCY", scale_cy);

	config_set_default_uint  (basicConfig, "Video", "FPSType", 0);
	config_set_default_string(basicConfig, "Video", "FPSCommon", "30");
	config_set_default_uint  (basicConfig, "Video", "FPSInt", 30);
	config_set_default_uint  (basicConfig, "Video", "FPSNum", 30);
	config_set_default_uint  (basicConfig, "Video", "FPSDen", 1);
	config_set_default_string(basicConfig, "Video", "ScaleType", "bicubic");
	config_set_default_string(basicConfig, "Video", "ColorFormat", "NV12");
	config_set_default_string(basicConfig, "Video", "ColorSpace", "601");
	config_set_default_string(basicConfig, "Video", "ColorRange",
			"Partial");

	config_set_default_uint  (basicConfig, "Audio", "SampleRate", 44100);
	config_set_default_string(basicConfig, "Audio", "ChannelSetup",
			"Stereo");

	return true;
}

bool OBSBasic::InitBasicConfig()
{
	ProfileScope("OBSBasic::InitBasicConfig");

	char configPath[512];

	int ret = GetProfilePath(configPath, sizeof(configPath), "");
	if (ret <= 0) {
		OBSErrorBox(nullptr, "Failed to get profile path");
		return false;
	}

	if (os_mkdir(configPath) == MKDIR_ERROR) {
		OBSErrorBox(nullptr, "Failed to create profile path");
		return false;
	}

	ret = GetProfilePath(configPath, sizeof(configPath), "basic.ini");
	if (ret <= 0) {
		OBSErrorBox(nullptr, "Failed to get base.ini path");
		return false;
	}

	int code = basicConfig.Open(configPath, CONFIG_OPEN_ALWAYS);
	if (code != CONFIG_SUCCESS) {
		OBSErrorBox(NULL, "Failed to open basic.ini: %d", code);
		return false;
	}

	if (config_get_string(basicConfig, "General", "Name") == nullptr) {
		const char *curName = config_get_string(App()->GlobalConfig(),
				"Basic", "Profile");

		config_set_string(basicConfig, "General", "Name", curName);
		basicConfig.SaveSafe("tmp");
	}

	return InitBasicConfigDefaults();
}

void OBSBasic::InitOBSCallbacks()
{
	ProfileScope("OBSBasic::InitOBSCallbacks");

	signalHandlers.reserve(signalHandlers.size() + 6);
	signalHandlers.emplace_back(obs_get_signal_handler(), "source_remove",
			OBSBasic::SourceRemoved, this);
	signalHandlers.emplace_back(obs_get_signal_handler(), "source_activate",
			OBSBasic::SourceActivated, this);
	signalHandlers.emplace_back(obs_get_signal_handler(), "source_deactivate",
			OBSBasic::SourceDeactivated, this);
	signalHandlers.emplace_back(obs_get_signal_handler(), "source_rename",
			OBSBasic::SourceRenamed, this);
}

void OBSBasic::InitPrimitives()
{
	ProfileScope("OBSBasic::InitPrimitives");

	obs_enter_graphics();

	gs_render_start(true);
	gs_vertex2f(0.0f, 0.0f);
	gs_vertex2f(0.0f, 1.0f);
	gs_vertex2f(1.0f, 1.0f);
	gs_vertex2f(1.0f, 0.0f);
	gs_vertex2f(0.0f, 0.0f);
	box = gs_render_save();

	gs_render_start(true);
	gs_vertex2f(0.0f, 0.0f);
	gs_vertex2f(0.0f, 1.0f);
	boxLeft = gs_render_save();

	gs_render_start(true);
	gs_vertex2f(0.0f, 0.0f);
	gs_vertex2f(1.0f, 0.0f);
	boxTop = gs_render_save();

	gs_render_start(true);
	gs_vertex2f(1.0f, 0.0f);
	gs_vertex2f(1.0f, 1.0f);
	boxRight = gs_render_save();

	gs_render_start(true);
	gs_vertex2f(0.0f, 1.0f);
	gs_vertex2f(1.0f, 1.0f);
	boxBottom = gs_render_save();

	gs_render_start(true);
	for (int i = 0; i <= 360; i += (360/20)) {
		float pos = RAD(float(i));
		gs_vertex2f(cosf(pos), sinf(pos));
	}
	circle = gs_render_save();

	obs_leave_graphics();
}

void OBSBasic::ReplayBufferClicked()
{
	if (outputHandler->ReplayBufferActive())
		StopReplayBuffer();
	else
		StartReplayBuffer();
};

void OBSBasic::ResetOutputs()
{
	ProfileScope("OBSBasic::ResetOutputs");

	const char *mode = config_get_string(basicConfig, "Output", "Mode");
	bool advOut = astrcmpi(mode, "Advanced") == 0;

	if (!outputHandler || !outputHandler->Active()) {
		outputHandler.reset();
		outputHandler.reset(advOut ?
			CreateAdvancedOutputHandler(this) :
			CreateSimpleOutputHandler(this));

		delete replayBufferButton;

		if (outputHandler->replayBuffer) {
			replayBufferButton = new QPushButton(
					QTStr("Basic.Main.StartReplayBuffer"),
					this);
			connect(replayBufferButton,
					&QPushButton::clicked,
					this,
					&OBSBasic::ReplayBufferClicked);

			ui->buttonsVLayout->insertWidget(2, replayBufferButton);
		}

		if (sysTrayReplayBuffer)
			sysTrayReplayBuffer->setEnabled(
					!!outputHandler->replayBuffer);
	} else {
		outputHandler->Update();
	}
}

#define STARTUP_SEPARATOR \
	"==== Startup complete ==============================================="
#define SHUTDOWN_SEPARATOR \
	"==== Shutting down =================================================="

extern obs_frontend_callbacks *InitializeAPIInterface(OBSBasic *main);

void OBSBasic::OBSInit()
{
	ProfileScope("OBSBasic::OBSInit");

	const char *sceneCollection = config_get_string(App()->GlobalConfig(),
			"Basic", "SceneCollectionFile");
	char savePath[512];
	char fileName[512];
	int ret;

	if (!sceneCollection)
		throw "Failed to get scene collection name";

	ret = snprintf(fileName, 512, "obs-studio/basic/scenes/%s.json",
			sceneCollection);
	if (ret <= 0)
		throw "Failed to create scene collection file name";

	ret = GetConfigPath(savePath, sizeof(savePath), fileName);
	if (ret <= 0)
		throw "Failed to get scene collection json file path";

	if (!InitBasicConfig())
		throw "Failed to load basic.ini";
	if (!ResetAudio())
		throw "Failed to initialize audio";

	ret = ResetVideo();

	switch (ret) {
	case OBS_VIDEO_MODULE_NOT_FOUND:
		throw "Failed to initialize video:  Graphics module not found";
	case OBS_VIDEO_NOT_SUPPORTED:
		throw "Failed to initialize video:  Required graphics API "
		      "functionality not found on these drivers or "
		      "unavailable on this equipment";
	case OBS_VIDEO_INVALID_PARAM:
		throw "Failed to initialize video:  Invalid parameters";
	default:
		if (ret != OBS_VIDEO_SUCCESS)
			throw "Failed to initialize video:  Unspecified error";
	}

	InitOBSCallbacks();
	InitHotkeys();

	api = InitializeAPIInterface(this);

	AddExtraModulePaths();
	blog(LOG_INFO, "---------------------------------");
	obs_load_all_modules();
	blog(LOG_INFO, "---------------------------------");
	obs_log_loaded_modules();

	blog(LOG_INFO, STARTUP_SEPARATOR);

	ResetOutputs();
	CreateHotkeys();

	if (!InitService())
		throw "Failed to initialize service";

	InitPrimitives();

	sceneDuplicationMode = config_get_bool(App()->GlobalConfig(),
				"BasicWindow", "SceneDuplicationMode");
	swapScenesMode = config_get_bool(App()->GlobalConfig(),
				"BasicWindow", "SwapScenesMode");
	editPropertiesMode = config_get_bool(App()->GlobalConfig(),
				"BasicWindow", "EditPropertiesMode");
	SetPreviewProgramMode(config_get_bool(App()->GlobalConfig(),
				"BasicWindow", "PreviewProgramMode"));

#define SET_VISIBILITY(name, control) \
	do { \
		if (config_has_user_value(App()->GlobalConfig(), \
					"BasicWindow", name)) { \
			bool visible = config_get_bool(App()->GlobalConfig(), \
					"BasicWindow", name); \
			ui->control->setChecked(visible); \
		} \
	} while (false)

	SET_VISIBILITY("ShowTransitions", toggleSceneTransitions);
	SET_VISIBILITY("ShowListboxToolbars", toggleListboxToolbars);
	SET_VISIBILITY("ShowStatusBar", toggleStatusBar);
#undef SET_VISIBILITY

	{
		ProfileScope("OBSBasic::Load");
		disableSaving--;
		Load(savePath);
		disableSaving++;
	}

	TimedCheckForUpdates();
	loaded = true;

	previewEnabled = config_get_bool(App()->GlobalConfig(),
			"BasicWindow", "PreviewEnabled");

	if (!previewEnabled && !IsPreviewProgramMode())
		QMetaObject::invokeMethod(this, "EnablePreviewDisplay",
				Qt::QueuedConnection,
				Q_ARG(bool, previewEnabled));

#ifdef _WIN32
	uint32_t winVer = GetWindowsVersion();
	if (winVer > 0 && winVer < 0x602) {
		bool disableAero = config_get_bool(basicConfig, "Video",
				"DisableAero");
		SetAeroEnabled(!disableAero);
	}
#endif

	RefreshSceneCollections();
	RefreshProfiles();
	disableSaving--;

	auto addDisplay = [this] (OBSQTDisplay *window)
	{
		obs_display_add_draw_callback(window->GetDisplay(),
				OBSBasic::RenderMain, this);

		struct obs_video_info ovi;
		if (obs_get_video_info(&ovi))
			ResizePreview(ovi.base_width, ovi.base_height);
	};

	connect(ui->preview, &OBSQTDisplay::DisplayCreated, addDisplay);

#ifdef _WIN32
	SetWin32DropStyle(this);
	show();
#endif

	bool alwaysOnTop = config_get_bool(App()->GlobalConfig(), "BasicWindow",
			"AlwaysOnTop");
	if (alwaysOnTop) {
		SetAlwaysOnTop(this, true);
		ui->actionAlwaysOnTop->setChecked(true);
	}

#ifndef _WIN32
	show();
#endif

	QList<int> defSizes;

	int top = config_get_int(App()->GlobalConfig(), "BasicWindow",
			"splitterTop");
	int bottom = config_get_int(App()->GlobalConfig(), "BasicWindow",
			"splitterBottom");

	if (!top || !bottom) {
		defSizes = ui->mainSplitter->sizes();
		int total = defSizes[0] + defSizes[1];
		defSizes[0] = total * 75 / 100;
		defSizes[1] = total - defSizes[0];
	} else {
		defSizes.push_back(top);
		defSizes.push_back(bottom);
	}

	ui->mainSplitter->setSizes(defSizes);

	SystemTray(true);
}

void OBSBasic::InitHotkeys()
{
	ProfileScope("OBSBasic::InitHotkeys");

	struct obs_hotkeys_translations t = {};
	t.insert                       = Str("Hotkeys.Insert");
	t.del                          = Str("Hotkeys.Delete");
	t.home                         = Str("Hotkeys.Home");
	t.end                          = Str("Hotkeys.End");
	t.page_up                      = Str("Hotkeys.PageUp");
	t.page_down                    = Str("Hotkeys.PageDown");
	t.num_lock                     = Str("Hotkeys.NumLock");
	t.scroll_lock                  = Str("Hotkeys.ScrollLock");
	t.caps_lock                    = Str("Hotkeys.CapsLock");
	t.backspace                    = Str("Hotkeys.Backspace");
	t.tab                          = Str("Hotkeys.Tab");
	t.print                        = Str("Hotkeys.Print");
	t.pause                        = Str("Hotkeys.Pause");
	t.left                         = Str("Hotkeys.Left");
	t.right                        = Str("Hotkeys.Right");
	t.up                           = Str("Hotkeys.Up");
	t.down                         = Str("Hotkeys.Down");
#ifdef _WIN32
	t.meta                         = Str("Hotkeys.Windows");
#else
	t.meta                         = Str("Hotkeys.Super");
#endif
	t.menu                         = Str("Hotkeys.Menu");
	t.space                        = Str("Hotkeys.Space");
	t.numpad_num                   = Str("Hotkeys.NumpadNum");
	t.numpad_multiply              = Str("Hotkeys.NumpadMultiply");
	t.numpad_divide                = Str("Hotkeys.NumpadDivide");
	t.numpad_plus                  = Str("Hotkeys.NumpadAdd");
	t.numpad_minus                 = Str("Hotkeys.NumpadSubtract");
	t.numpad_decimal               = Str("Hotkeys.NumpadDecimal");
	t.apple_keypad_num             = Str("Hotkeys.AppleKeypadNum");
	t.apple_keypad_multiply        = Str("Hotkeys.AppleKeypadMultiply");
	t.apple_keypad_divide          = Str("Hotkeys.AppleKeypadDivide");
	t.apple_keypad_plus            = Str("Hotkeys.AppleKeypadAdd");
	t.apple_keypad_minus           = Str("Hotkeys.AppleKeypadSubtract");
	t.apple_keypad_decimal         = Str("Hotkeys.AppleKeypadDecimal");
	t.apple_keypad_equal           = Str("Hotkeys.AppleKeypadEqual");
	t.mouse_num                    = Str("Hotkeys.MouseButton");
	obs_hotkeys_set_translations(&t);

	obs_hotkeys_set_audio_hotkeys_translations(Str("Mute"), Str("Unmute"),
			Str("Push-to-mute"), Str("Push-to-talk"));

	obs_hotkeys_set_sceneitem_hotkeys_translations(
			Str("SceneItemShow"), Str("SceneItemHide"));

	obs_hotkey_enable_callback_rerouting(true);
	obs_hotkey_set_callback_routing_func(OBSBasic::HotkeyTriggered, this);
}

void OBSBasic::ProcessHotkey(obs_hotkey_id id, bool pressed)
{
	obs_hotkey_trigger_routed_callback(id, pressed);
}

void OBSBasic::HotkeyTriggered(void *data, obs_hotkey_id id, bool pressed)
{
	OBSBasic &basic = *static_cast<OBSBasic*>(data);
	QMetaObject::invokeMethod(&basic, "ProcessHotkey",
			Q_ARG(obs_hotkey_id, id), Q_ARG(bool, pressed));
}

void OBSBasic::CreateHotkeys()
{
	ProfileScope("OBSBasic::CreateHotkeys");

	auto LoadHotkeyData = [&](const char *name) -> OBSData
	{
		const char *info = config_get_string(basicConfig,
				"Hotkeys", name);
		if (!info)
			return {};

		obs_data_t *data = obs_data_create_from_json(info);
		if (!data)
			return {};

		OBSData res = data;
		obs_data_release(data);
		return res;
	};

	auto LoadHotkey = [&](obs_hotkey_id id, const char *name)
	{
		obs_data_array_t *array =
			obs_data_get_array(LoadHotkeyData(name), "bindings");

		obs_hotkey_load(id, array);
		obs_data_array_release(array);
	};

	auto LoadHotkeyPair = [&](obs_hotkey_pair_id id, const char *name0,
			const char *name1)
	{
		obs_data_array_t *array0 =
			obs_data_get_array(LoadHotkeyData(name0), "bindings");
		obs_data_array_t *array1 =
			obs_data_get_array(LoadHotkeyData(name1), "bindings");

		obs_hotkey_pair_load(id, array0, array1);
		obs_data_array_release(array0);
		obs_data_array_release(array1);
	};

#define MAKE_CALLBACK(pred, method) \
	[](void *data, obs_hotkey_pair_id, obs_hotkey_t*, bool pressed) \
	{ \
		OBSBasic &basic = *static_cast<OBSBasic*>(data); \
		if (pred && pressed) { \
			method(); \
			return true; \
		} \
		return false; \
	}

	streamingHotkeys = obs_hotkey_pair_register_frontend(
			"OBSBasic.StartStreaming",
			Str("Basic.Main.StartStreaming"),
			"OBSBasic.StopStreaming",
			Str("Basic.Main.StopStreaming"),
			MAKE_CALLBACK(!basic.outputHandler->StreamingActive(),
				basic.StartStreaming),
			MAKE_CALLBACK(basic.outputHandler->StreamingActive(),
				basic.StopStreaming),
			this, this);
	LoadHotkeyPair(streamingHotkeys,
			"OBSBasic.StartStreaming", "OBSBasic.StopStreaming");

	auto cb = [] (void *data, obs_hotkey_id, obs_hotkey_t*, bool pressed)
	{
		OBSBasic &basic = *static_cast<OBSBasic*>(data);
		if (basic.outputHandler->StreamingActive() && pressed) {
			basic.ForceStopStreaming();
		}
	};

	forceStreamingStopHotkey = obs_hotkey_register_frontend(
			"OBSBasic.ForceStopStreaming",
			Str("Basic.Main.ForceStopStreaming"),
			cb, this);
	LoadHotkey(forceStreamingStopHotkey,
			"OBSBasic.ForceStopStreaming");

	recordingHotkeys = obs_hotkey_pair_register_frontend(
			"OBSBasic.StartRecording",
			Str("Basic.Main.StartRecording"),
			"OBSBasic.StopRecording",
			Str("Basic.Main.StopRecording"),
			MAKE_CALLBACK(!basic.outputHandler->RecordingActive(),
				basic.StartRecording),
			MAKE_CALLBACK(basic.outputHandler->RecordingActive(),
				basic.StopRecording),
			this, this);
	LoadHotkeyPair(recordingHotkeys,
			"OBSBasic.StartRecording", "OBSBasic.StopRecording");

	replayBufHotkeys = obs_hotkey_pair_register_frontend(
			"OBSBasic.StartReplayBuffer",
			Str("Basic.Main.StartReplayBuffer"),
			"OBSBasic.StopReplayBuffer",
			Str("Basic.Main.StopReplayBuffer"),
			MAKE_CALLBACK(!basic.outputHandler->ReplayBufferActive(),
				basic.StartReplayBuffer),
			MAKE_CALLBACK(basic.outputHandler->ReplayBufferActive(),
				basic.StopReplayBuffer),
			this, this);
	LoadHotkeyPair(replayBufHotkeys,
			"OBSBasic.StartReplayBuffer", "OBSBasic.StopReplayBuffer");
#undef MAKE_CALLBACK

	auto togglePreviewProgram = [] (void *data, obs_hotkey_id,
			obs_hotkey_t*, bool pressed)
	{
		if (pressed)
			QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
					"on_modeSwitch_clicked",
					Qt::QueuedConnection);
	};

	togglePreviewProgramHotkey = obs_hotkey_register_frontend(
			"OBSBasic.TogglePreviewProgram",
			Str("Basic.TogglePreviewProgramMode"),
			togglePreviewProgram, this);
	LoadHotkey(togglePreviewProgramHotkey, "OBSBasic.TogglePreviewProgram");

	auto transition = [] (void *data, obs_hotkey_id, obs_hotkey_t*,
			bool pressed)
	{
		if (pressed)
			QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
					"TransitionClicked",
					Qt::QueuedConnection);
	};

	transitionHotkey = obs_hotkey_register_frontend(
			"OBSBasic.Transition",
			Str("Transition"), transition, this);
	LoadHotkey(transitionHotkey, "OBSBasic.Transition");
}

void OBSBasic::ClearHotkeys()
{
	obs_hotkey_pair_unregister(streamingHotkeys);
	obs_hotkey_pair_unregister(recordingHotkeys);
	obs_hotkey_pair_unregister(replayBufHotkeys);
	obs_hotkey_unregister(forceStreamingStopHotkey);
	obs_hotkey_unregister(togglePreviewProgramHotkey);
	obs_hotkey_unregister(transitionHotkey);
}

OBSBasic::~OBSBasic()
{
	delete programOptions;
	delete program;

	/* XXX: any obs data must be released before calling obs_shutdown.
	 * currently, we can't automate this with C++ RAII because of the
	 * delicate nature of obs_shutdown needing to be freed before the UI
	 * can be freed, and we have no control over the destruction order of
	 * the Qt UI stuff, so we have to manually clear any references to
	 * libobs. */
	delete cpuUsageTimer;
	os_cpu_usage_info_destroy(cpuUsageInfo);

	obs_hotkey_set_callback_routing_func(nullptr, nullptr);
	ClearHotkeys();

	service = nullptr;
	outputHandler.reset();

	if (interaction)
		delete interaction;

	if (properties)
		delete properties;

	if (filters)
		delete filters;

	if (transformWindow)
		delete transformWindow;

	if (advAudioWindow)
		delete advAudioWindow;

	obs_display_remove_draw_callback(ui->preview->GetDisplay(),
			OBSBasic::RenderMain, this);

	obs_enter_graphics();
	gs_vertexbuffer_destroy(box);
	gs_vertexbuffer_destroy(boxLeft);
	gs_vertexbuffer_destroy(boxTop);
	gs_vertexbuffer_destroy(boxRight);
	gs_vertexbuffer_destroy(boxBottom);
	gs_vertexbuffer_destroy(circle);
	obs_leave_graphics();

	/* When shutting down, sometimes source references can get in to the
	 * event queue, and if we don't forcibly process those events they
	 * won't get processed until after obs_shutdown has been called.  I
	 * really wish there were a more elegant way to deal with this via C++,
	 * but Qt doesn't use C++ in a normal way, so you can't really rely on
	 * normal C++ behavior for your data to be freed in the order that you
	 * expect or want it to. */
	QApplication::sendPostedEvents(this);

	config_set_int(App()->GlobalConfig(), "General", "LastVersion",
			LIBOBS_API_VER);

	QRect lastGeom = normalGeometry();
	QList<int> splitterSizes = ui->mainSplitter->sizes();
	bool alwaysOnTop = IsAlwaysOnTop(this);

	config_set_int(App()->GlobalConfig(), "BasicWindow", "splitterTop",
			splitterSizes[0]);
	config_set_int(App()->GlobalConfig(), "BasicWindow", "splitterBottom",
			splitterSizes[1]);
	config_set_bool(App()->GlobalConfig(), "BasicWindow", "PreviewEnabled",
			previewEnabled);
	config_set_bool(App()->GlobalConfig(), "BasicWindow", "AlwaysOnTop",
			alwaysOnTop);
	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"SceneDuplicationMode", sceneDuplicationMode);
	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"SwapScenesMode", swapScenesMode);
	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"EditPropertiesMode", editPropertiesMode);
	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"PreviewProgramMode", IsPreviewProgramMode());
	config_save_safe(App()->GlobalConfig(), "tmp", nullptr);

#ifdef _WIN32
	uint32_t winVer = GetWindowsVersion();
	if (winVer > 0 && winVer < 0x602) {
		bool disableAero = config_get_bool(basicConfig, "Video",
				"DisableAero");
		if (disableAero) {
			SetAeroEnabled(true);
		}
	}
#endif
}

void OBSBasic::SaveProjectNow()
{
	if (disableSaving)
		return;

	projectChanged = true;
	SaveProjectDeferred();
}

void OBSBasic::SaveProject()
{
	if (disableSaving)
		return;

	projectChanged = true;
	QMetaObject::invokeMethod(this, "SaveProjectDeferred",
			Qt::QueuedConnection);
}

void OBSBasic::SaveProjectDeferred()
{
	if (disableSaving)
		return;

	if (!projectChanged)
		return;

	projectChanged = false;

	const char *sceneCollection = config_get_string(App()->GlobalConfig(),
			"Basic", "SceneCollectionFile");
	char savePath[512];
	char fileName[512];
	int ret;

	if (!sceneCollection)
		return;

	ret = snprintf(fileName, 512, "obs-studio/basic/scenes/%s.json",
			sceneCollection);
	if (ret <= 0)
		return;

	ret = GetConfigPath(savePath, sizeof(savePath), fileName);
	if (ret <= 0)
		return;

	Save(savePath);
}

OBSScene OBSBasic::GetCurrentScene()
{
	QListWidgetItem *item = ui->scenes->currentItem();
	return item ? GetOBSRef<OBSScene>(item) : nullptr;
}

OBSSceneItem OBSBasic::GetSceneItem(QListWidgetItem *item)
{
	return item ? GetOBSRef<OBSSceneItem>(item) : nullptr;
}

OBSSceneItem OBSBasic::GetCurrentSceneItem()
{
	return GetSceneItem(GetTopSelectedSourceItem());
}

void OBSBasic::UpdatePreviewScalingMenu()
{
	ScalingMode scalingMode = ui->preview->GetScalingMode();
	ui->actionScaleWindow->setChecked(
			scalingMode == ScalingMode::Window);
	ui->actionScaleCanvas->setChecked(
			scalingMode == ScalingMode::Canvas);
	ui->actionScaleOutput->setChecked(
			scalingMode == ScalingMode::Output);
}

void OBSBasic::UpdateSources(OBSScene scene)
{
	ClearListItems(ui->sources);

	obs_scene_enum_items(scene,
			[] (obs_scene_t *scene, obs_sceneitem_t *item, void *p)
			{
				OBSBasic *window = static_cast<OBSBasic*>(p);
				window->InsertSceneItem(item);

				UNUSED_PARAMETER(scene);
				return true;
			}, this);
}

void OBSBasic::InsertSceneItem(obs_sceneitem_t *item)
{
	QListWidgetItem *listItem = new QListWidgetItem();
	SetOBSRef(listItem, OBSSceneItem(item));

	ui->sources->insertItem(0, listItem);
	ui->sources->setCurrentRow(0, QItemSelectionModel::ClearAndSelect);

	SetupVisibilityItem(ui->sources, listItem, item);
}

void OBSBasic::CreateInteractionWindow(obs_source_t *source)
{
	if (interaction)
		interaction->close();

	interaction = new OBSBasicInteraction(this, source);
	interaction->Init();
	interaction->setAttribute(Qt::WA_DeleteOnClose, true);
}

void OBSBasic::CreatePropertiesWindow(obs_source_t *source)
{
	if (properties)
		properties->close();

	properties = new OBSBasicProperties(this, source);
	properties->Init();
	properties->setAttribute(Qt::WA_DeleteOnClose, true);
}

void OBSBasic::CreateFiltersWindow(obs_source_t *source)
{
	if (filters)
		filters->close();

	filters = new OBSBasicFilters(this, source);
	filters->Init();
	filters->setAttribute(Qt::WA_DeleteOnClose, true);
}

/* Qt callbacks for invokeMethod */

void OBSBasic::AddScene(OBSSource source)
{
	const char *name  = obs_source_get_name(source);
	obs_scene_t *scene = obs_scene_from_source(source);

	QListWidgetItem *item = new QListWidgetItem(QT_UTF8(name));
	SetOBSRef(item, OBSScene(scene));
	ui->scenes->addItem(item);

	obs_hotkey_register_source(source, "OBSBasic.SelectScene",
			Str("Basic.Hotkeys.SelectScene"),
			[](void *data,
				obs_hotkey_id, obs_hotkey_t*, bool pressed)
	{
		OBSBasic *main =
			reinterpret_cast<OBSBasic*>(App()->GetMainWindow());

		auto potential_source = static_cast<obs_source_t*>(data);
		auto source = obs_source_get_ref(potential_source);
		if (source && pressed)
			main->SetCurrentScene(source);
		obs_source_release(source);
	}, static_cast<obs_source_t*>(source));

	signal_handler_t *handler = obs_source_get_signal_handler(source);

	SignalContainer<OBSScene> container;
	container.ref = scene;
	container.handlers.assign({
		std::make_shared<OBSSignal>(handler, "item_add",
					OBSBasic::SceneItemAdded, this),
		std::make_shared<OBSSignal>(handler, "item_remove",
					OBSBasic::SceneItemRemoved, this),
		std::make_shared<OBSSignal>(handler, "item_select",
					OBSBasic::SceneItemSelected, this),
		std::make_shared<OBSSignal>(handler, "item_deselect",
					OBSBasic::SceneItemDeselected, this),
		std::make_shared<OBSSignal>(handler, "reorder",
					OBSBasic::SceneReordered, this),
	});

	item->setData(static_cast<int>(QtDataRole::OBSSignals),
			QVariant::fromValue(container));

	/* if the scene already has items (a duplicated scene) add them */
	auto addSceneItem = [this] (obs_sceneitem_t *item)
	{
		AddSceneItem(item);
	};

	using addSceneItem_t = decltype(addSceneItem);

	obs_scene_enum_items(scene,
			[] (obs_scene_t*, obs_sceneitem_t *item, void *param)
			{
				addSceneItem_t *func;
				func = reinterpret_cast<addSceneItem_t*>(param);
				(*func)(item);
				return true;
			}, &addSceneItem);

	SaveProject();

	if (!disableSaving) {
		obs_source_t *source = obs_scene_get_source(scene);
		blog(LOG_INFO, "User added scene '%s'",
				obs_source_get_name(source));
	}
}

void OBSBasic::RemoveScene(OBSSource source)
{
	obs_scene_t *scene = obs_scene_from_source(source);

	QListWidgetItem *sel = nullptr;
	int count = ui->scenes->count();
	for (int i = 0; i < count; i++) {
		auto item = ui->scenes->item(i);
		auto cur_scene = GetOBSRef<OBSScene>(item);
		if (cur_scene != scene)
			continue;

		sel = item;
		break;
	}

	if (sel != nullptr) {
		if (sel == ui->scenes->currentItem())
			ClearListItems(ui->sources);
		delete sel;
	}

	SaveProject();

	if (!disableSaving) {
		blog(LOG_INFO, "User Removed scene '%s'",
				obs_source_get_name(source));
	}
}

void OBSBasic::AddSceneItem(OBSSceneItem item)
{
	obs_scene_t  *scene  = obs_sceneitem_get_scene(item);

	if (GetCurrentScene() == scene)
		InsertSceneItem(item);

	SaveProject();

	if (!disableSaving) {
		obs_source_t *sceneSource = obs_scene_get_source(scene);
		obs_source_t *itemSource = obs_sceneitem_get_source(item);
		blog(LOG_INFO, "User added source '%s' (%s) to scene '%s'",
				obs_source_get_name(itemSource),
				obs_source_get_id(itemSource),
				obs_source_get_name(sceneSource));
	}
}

void OBSBasic::RemoveSceneItem(OBSSceneItem item)
{
	for (int i = 0; i < ui->sources->count(); i++) {
		QListWidgetItem *listItem = ui->sources->item(i);

		if (GetOBSRef<OBSSceneItem>(listItem) == item) {
			DeleteListItem(ui->sources, listItem);
			break;
		}
	}

	SaveProject();

	if (!disableSaving) {
		obs_scene_t *scene = obs_sceneitem_get_scene(item);
		obs_source_t *sceneSource = obs_scene_get_source(scene);
		obs_source_t *itemSource = obs_sceneitem_get_source(item);
		blog(LOG_INFO, "User Removed source '%s' (%s) from scene '%s'",
				obs_source_get_name(itemSource),
				obs_source_get_id(itemSource),
				obs_source_get_name(sceneSource));
	}
}

void OBSBasic::UpdateSceneSelection(OBSSource source)
{
	if (source) {
		obs_scene_t *scene = obs_scene_from_source(source);
		const char *name = obs_source_get_name(source);

		if (!scene)
			return;

		QList<QListWidgetItem*> items =
			ui->scenes->findItems(QT_UTF8(name), Qt::MatchExactly);

		if (items.count()) {
			sceneChanging = true;
			ui->scenes->setCurrentItem(items.first());
			sceneChanging = false;

			UpdateSources(scene);
		}
	}
}

static void RenameListValues(QListWidget *listWidget, const QString &newName,
		const QString &prevName)
{
	QList<QListWidgetItem*> items =
		listWidget->findItems(prevName, Qt::MatchExactly);

	for (int i = 0; i < items.count(); i++)
		items[i]->setText(newName);
}

void OBSBasic::RenameSources(QString newName, QString prevName)
{
	RenameListValues(ui->scenes,  newName, prevName);

	for (size_t i = 0; i < volumes.size(); i++) {
		if (volumes[i]->GetName().compare(prevName) == 0)
			volumes[i]->SetName(newName);
	}

	SaveProject();
}

void OBSBasic::SelectSceneItem(OBSScene scene, OBSSceneItem item, bool select)
{
	SignalBlocker sourcesSignalBlocker(ui->sources);

	if (scene != GetCurrentScene() || ignoreSelectionUpdate)
		return;

	for (int i = 0; i < ui->sources->count(); i++) {
		QListWidgetItem *witem = ui->sources->item(i);
		QVariant data =
			witem->data(static_cast<int>(QtDataRole::OBSRef));
		if (!data.canConvert<OBSSceneItem>())
			continue;

		if (item != data.value<OBSSceneItem>())
			continue;

		witem->setSelected(select);
		break;
	}
}

void OBSBasic::GetAudioSourceFilters()
{
	QAction *action = reinterpret_cast<QAction*>(sender());
	VolControl *vol = action->property("volControl").value<VolControl*>();
	obs_source_t *source = vol->GetSource();

	CreateFiltersWindow(source);
}

void OBSBasic::GetAudioSourceProperties()
{
	QAction *action = reinterpret_cast<QAction*>(sender());
	VolControl *vol = action->property("volControl").value<VolControl*>();
	obs_source_t *source = vol->GetSource();

	CreatePropertiesWindow(source);
}

void OBSBasic::VolControlContextMenu()
{
	VolControl *vol = reinterpret_cast<VolControl*>(sender());

	QAction filtersAction(QTStr("Filters"), this);
	QAction propertiesAction(QTStr("Properties"), this);

	connect(&filtersAction, &QAction::triggered,
			this, &OBSBasic::GetAudioSourceFilters,
			Qt::DirectConnection);
	connect(&propertiesAction, &QAction::triggered,
			this, &OBSBasic::GetAudioSourceProperties,
			Qt::DirectConnection);

	filtersAction.setProperty("volControl",
			QVariant::fromValue<VolControl*>(vol));
	propertiesAction.setProperty("volControl",
			QVariant::fromValue<VolControl*>(vol));

	QMenu popup(this);
	popup.addAction(&filtersAction);
	popup.addAction(&propertiesAction);
	popup.exec(QCursor::pos());
}

void OBSBasic::ActivateAudioSource(OBSSource source)
{
	VolControl *vol = new VolControl(source, true);

	connect(vol, &VolControl::ConfigClicked,
			this, &OBSBasic::VolControlContextMenu);

	volumes.push_back(vol);
	ui->volumeWidgets->layout()->addWidget(vol);
}

void OBSBasic::DeactivateAudioSource(OBSSource source)
{
	for (size_t i = 0; i < volumes.size(); i++) {
		if (volumes[i]->GetSource() == source) {
			delete volumes[i];
			volumes.erase(volumes.begin() + i);
			break;
		}
	}
}

bool OBSBasic::QueryRemoveSource(obs_source_t *source)
{
	const char *name  = obs_source_get_name(source);

	QString text = QTStr("ConfirmRemove.Text");
	text.replace("$1", QT_UTF8(name));

	QMessageBox remove_source(this);
	remove_source.setText(text);
	QAbstractButton *Yes = remove_source.addButton(QTStr("Yes"),
			QMessageBox::YesRole);
	remove_source.addButton(QTStr("No"), QMessageBox::NoRole);
	remove_source.setIcon(QMessageBox::Question);
	remove_source.setWindowTitle(QTStr("ConfirmRemove.Title"));
	remove_source.exec();

	return Yes == remove_source.clickedButton();
}

#define UPDATE_CHECK_INTERVAL (60*60*24*4) /* 4 days */

#ifdef UPDATE_SPARKLE
void init_sparkle_updater(bool update_to_undeployed);
void trigger_sparkle_update();
#endif

void OBSBasic::TimedCheckForUpdates()
{
#ifdef UPDATE_SPARKLE
	init_sparkle_updater(config_get_bool(App()->GlobalConfig(), "General",
				"UpdateToUndeployed"));
#else
	long long lastUpdate = config_get_int(App()->GlobalConfig(), "General",
			"LastUpdateCheck");
	uint32_t lastVersion = config_get_int(App()->GlobalConfig(), "General",
			"LastVersion");

	if (lastVersion < LIBOBS_API_VER) {
		lastUpdate = 0;
		config_set_int(App()->GlobalConfig(), "General",
				"LastUpdateCheck", 0);
	}

	long long t    = (long long)time(nullptr);
	long long secs = t - lastUpdate;

	if (secs > UPDATE_CHECK_INTERVAL)
		CheckForUpdates();
#endif
}

void OBSBasic::CheckForUpdates()
{
#ifdef UPDATE_SPARKLE
	trigger_sparkle_update();
#else
	ui->actionCheckForUpdates->setEnabled(false);

	if (updateCheckThread) {
		updateCheckThread->wait();
		delete updateCheckThread;
	}

	RemoteTextThread *thread = new RemoteTextThread(
			"https://obsproject.com/obs2_update/basic.json");
	updateCheckThread = thread;
	connect(thread, &RemoteTextThread::Result,
			this, &OBSBasic::updateFileFinished);
	updateCheckThread->start();
#endif
}

#ifdef __APPLE__
#define VERSION_ENTRY "mac"
#elif _WIN32
#define VERSION_ENTRY "windows"
#else
#define VERSION_ENTRY "other"
#endif

void OBSBasic::updateFileFinished(const QString &text, const QString &error)
{
	ui->actionCheckForUpdates->setEnabled(true);

	if (text.isEmpty()) {
		blog(LOG_WARNING, "Update check failed: %s", QT_TO_UTF8(error));
		return;
	}

	obs_data_t *returnData  = obs_data_create_from_json(QT_TO_UTF8(text));
	obs_data_t *versionData = obs_data_get_obj(returnData, VERSION_ENTRY);
	const char *description = obs_data_get_string(returnData,
			"description");
	const char *download    = obs_data_get_string(versionData, "download");

	if (returnData && versionData && description && download) {
		long major   = obs_data_get_int(versionData, "major");
		long minor   = obs_data_get_int(versionData, "minor");
		long patch   = obs_data_get_int(versionData, "patch");
		long version = MAKE_SEMANTIC_VERSION(major, minor, patch);

		blog(LOG_INFO, "Update check: last known remote version "
				"is %ld.%ld.%ld",
				major, minor, patch);

		if (version > LIBOBS_API_VER) {
			QString     str = QTStr("UpdateAvailable.Text");
			QMessageBox messageBox(this);

			str = str.arg(QString::number(major),
			              QString::number(minor),
			              QString::number(patch),
			              download);

			messageBox.setWindowTitle(QTStr("UpdateAvailable"));
			messageBox.setTextFormat(Qt::RichText);
			messageBox.setText(str);
			messageBox.setInformativeText(QT_UTF8(description));
			messageBox.exec();

			long long t = (long long)time(nullptr);
			config_set_int(App()->GlobalConfig(), "General",
					"LastUpdateCheck", t);
			config_save_safe(App()->GlobalConfig(), "tmp", nullptr);
		}
	} else {
		blog(LOG_WARNING, "Bad JSON file received from server");
	}

	obs_data_release(versionData);
	obs_data_release(returnData);
}

void OBSBasic::DuplicateSelectedScene()
{
	OBSScene curScene = GetCurrentScene();

	if (!curScene)
		return;

	OBSSource curSceneSource = obs_scene_get_source(curScene);
	QString format{obs_source_get_name(curSceneSource)};
	format += " %1";

	int i = 2;
	QString placeHolderText = format.arg(i);
	obs_source_t *source = nullptr;
	while ((source = obs_get_source_by_name(QT_TO_UTF8(placeHolderText)))) {
		obs_source_release(source);
		placeHolderText = format.arg(++i);
	}

	for (;;) {
		string name;
		bool accepted = NameDialog::AskForName(this,
				QTStr("Basic.Main.AddSceneDlg.Title"),
				QTStr("Basic.Main.AddSceneDlg.Text"),
				name,
				placeHolderText);
		if (!accepted)
			return;

		if (name.empty()) {
			QMessageBox::information(this,
					QTStr("NoNameEntered.Title"),
					QTStr("NoNameEntered.Text"));
			continue;
		}

		obs_source_t *source = obs_get_source_by_name(name.c_str());
		if (source) {
			QMessageBox::information(this,
					QTStr("NameExists.Title"),
					QTStr("NameExists.Text"));

			obs_source_release(source);
			continue;
		}

		obs_scene_t *scene = obs_scene_duplicate(curScene,
				name.c_str(), OBS_SCENE_DUP_REFS);
		source = obs_scene_get_source(scene);
		AddScene(source);
		SetCurrentScene(source, true);
		obs_scene_release(scene);

		if (api)
			api->on_event(OBS_FRONTEND_EVENT_SCENE_LIST_CHANGED);
		break;
	}
}

void OBSBasic::RemoveSelectedScene()
{
	OBSScene scene = GetCurrentScene();
	if (scene) {
		obs_source_t *source = obs_scene_get_source(scene);
		if (QueryRemoveSource(source)) {
			obs_source_remove(source);

			if (api)
				api->on_event(OBS_FRONTEND_EVENT_SCENE_LIST_CHANGED);
		}
	}
}

void OBSBasic::RemoveSelectedSceneItem()
{
	OBSSceneItem item = GetCurrentSceneItem();
	if (item) {
		obs_source_t *source = obs_sceneitem_get_source(item);
		if (QueryRemoveSource(source))
			obs_sceneitem_remove(item);
	}
}

struct ReorderInfo {
	int idx = 0;
	OBSBasic *window;

	inline ReorderInfo(OBSBasic *window_) : window(window_) {}
};

void OBSBasic::ReorderSceneItem(obs_sceneitem_t *item, size_t idx)
{
	int count = ui->sources->count();
	int idx_inv = count - (int)idx - 1;

	for (int i = 0; i < count; i++) {
		QListWidgetItem *listItem = ui->sources->item(i);
		OBSSceneItem sceneItem = GetOBSRef<OBSSceneItem>(listItem);

		if (sceneItem == item) {
			if ((int)idx_inv != i) {
				bool sel = (ui->sources->currentRow() == i);

				listItem = TakeListItem(ui->sources, i);
				if (listItem)  {
					ui->sources->insertItem(idx_inv,
							listItem);
					SetupVisibilityItem(ui->sources,
							listItem, item);

					if (sel)
						ui->sources->setCurrentRow(
								idx_inv);
				}
			}

			break;
		}
	}
}

void OBSBasic::ReorderSources(OBSScene scene)
{
	ReorderInfo info(this);

	if (scene != GetCurrentScene() || ui->sources->IgnoreReorder())
		return;

	obs_scene_enum_items(scene,
			[] (obs_scene_t*, obs_sceneitem_t *item, void *p)
			{
				ReorderInfo *info =
					reinterpret_cast<ReorderInfo*>(p);

				info->window->ReorderSceneItem(item,
					info->idx++);
				return true;
			}, &info);

	SaveProject();
}

/* OBS Callbacks */

void OBSBasic::SceneReordered(void *data, calldata_t *params)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	obs_scene_t *scene = (obs_scene_t*)calldata_ptr(params, "scene");

	QMetaObject::invokeMethod(window, "ReorderSources",
			Q_ARG(OBSScene, OBSScene(scene)));
}

void OBSBasic::SceneItemAdded(void *data, calldata_t *params)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	obs_sceneitem_t *item = (obs_sceneitem_t*)calldata_ptr(params, "item");

	QMetaObject::invokeMethod(window, "AddSceneItem",
			Q_ARG(OBSSceneItem, OBSSceneItem(item)));
}

void OBSBasic::SceneItemRemoved(void *data, calldata_t *params)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	obs_sceneitem_t *item = (obs_sceneitem_t*)calldata_ptr(params, "item");

	QMetaObject::invokeMethod(window, "RemoveSceneItem",
			Q_ARG(OBSSceneItem, OBSSceneItem(item)));
}

void OBSBasic::SceneItemSelected(void *data, calldata_t *params)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	obs_scene_t     *scene = (obs_scene_t*)calldata_ptr(params, "scene");
	obs_sceneitem_t *item  = (obs_sceneitem_t*)calldata_ptr(params, "item");

	QMetaObject::invokeMethod(window, "SelectSceneItem",
			Q_ARG(OBSScene, scene), Q_ARG(OBSSceneItem, item),
			Q_ARG(bool, true));
}

void OBSBasic::SceneItemDeselected(void *data, calldata_t *params)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	obs_scene_t     *scene = (obs_scene_t*)calldata_ptr(params, "scene");
	obs_sceneitem_t *item  = (obs_sceneitem_t*)calldata_ptr(params, "item");

	QMetaObject::invokeMethod(window, "SelectSceneItem",
			Q_ARG(OBSScene, scene), Q_ARG(OBSSceneItem, item),
			Q_ARG(bool, false));
}

void OBSBasic::SourceLoaded(void *data, obs_source_t *source)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);

	if (obs_scene_from_source(source) != NULL)
		QMetaObject::invokeMethod(window,
				"AddScene",
				Q_ARG(OBSSource, OBSSource(source)));
}

void OBSBasic::SourceRemoved(void *data, calldata_t *params)
{
	obs_source_t *source = (obs_source_t*)calldata_ptr(params, "source");

	if (obs_scene_from_source(source) != NULL)
		QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
				"RemoveScene",
				Q_ARG(OBSSource, OBSSource(source)));
}

void OBSBasic::SourceActivated(void *data, calldata_t *params)
{
	obs_source_t *source = (obs_source_t*)calldata_ptr(params, "source");
	uint32_t     flags  = obs_source_get_output_flags(source);

	if (flags & OBS_SOURCE_AUDIO)
		QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
				"ActivateAudioSource",
				Q_ARG(OBSSource, OBSSource(source)));
}

void OBSBasic::SourceDeactivated(void *data, calldata_t *params)
{
	obs_source_t *source = (obs_source_t*)calldata_ptr(params, "source");
	uint32_t     flags  = obs_source_get_output_flags(source);

	if (flags & OBS_SOURCE_AUDIO)
		QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
				"DeactivateAudioSource",
				Q_ARG(OBSSource, OBSSource(source)));
}

void OBSBasic::SourceRenamed(void *data, calldata_t *params)
{
	const char *newName  = calldata_string(params, "new_name");
	const char *prevName = calldata_string(params, "prev_name");

	QMetaObject::invokeMethod(static_cast<OBSBasic*>(data),
			"RenameSources",
			Q_ARG(QString, QT_UTF8(newName)),
			Q_ARG(QString, QT_UTF8(prevName)));

	blog(LOG_INFO, "Source '%s' renamed to '%s'", prevName, newName);
}

void OBSBasic::DrawBackdrop(float cx, float cy)
{
	if (!box)
		return;

	gs_effect_t    *solid = obs_get_base_effect(OBS_EFFECT_SOLID);
	gs_eparam_t    *color = gs_effect_get_param_by_name(solid, "color");
	gs_technique_t *tech  = gs_effect_get_technique(solid, "Solid");

	vec4 colorVal;
	vec4_set(&colorVal, 0.0f, 0.0f, 0.0f, 1.0f);
	gs_effect_set_vec4(color, &colorVal);

	gs_technique_begin(tech);
	gs_technique_begin_pass(tech, 0);
	gs_matrix_push();
	gs_matrix_identity();
	gs_matrix_scale3f(float(cx), float(cy), 1.0f);

	gs_load_vertexbuffer(box);
	gs_draw(GS_TRISTRIP, 0, 0);

	gs_matrix_pop();
	gs_technique_end_pass(tech);
	gs_technique_end(tech);

	gs_load_vertexbuffer(nullptr);
}

void OBSBasic::RenderMain(void *data, uint32_t cx, uint32_t cy)
{
	OBSBasic *window = static_cast<OBSBasic*>(data);
	obs_video_info ovi;

	obs_get_video_info(&ovi);

	window->previewCX = int(window->previewScale * float(ovi.base_width));
	window->previewCY = int(window->previewScale * float(ovi.base_height));

	gs_viewport_push();
	gs_projection_push();

	/* --------------------------------------- */

	gs_ortho(0.0f, float(ovi.base_width), 0.0f, float(ovi.base_height),
			-100.0f, 100.0f);
	gs_set_viewport(window->previewX, window->previewY,
			window->previewCX, window->previewCY);

	window->DrawBackdrop(float(ovi.base_width), float(ovi.base_height));

	if (window->IsPreviewProgramMode()) {
		OBSScene scene = window->GetCurrentScene();
		obs_source_t *source = obs_scene_get_source(scene);
		if (source)
			obs_source_video_render(source);
	} else {
		obs_render_main_view();
	}
	gs_load_vertexbuffer(nullptr);

	/* --------------------------------------- */

	QSize previewSize = GetPixelSize(window->ui->preview);
	float right  = float(previewSize.width())  - window->previewX;
	float bottom = float(previewSize.height()) - window->previewY;

	gs_ortho(-window->previewX, right,
	         -window->previewY, bottom,
	         -100.0f, 100.0f);
	gs_reset_viewport();

	window->ui->preview->DrawSceneEditing();

	/* --------------------------------------- */

	gs_projection_pop();
	gs_viewport_pop();

	UNUSED_PARAMETER(cx);
	UNUSED_PARAMETER(cy);
}

/* Main class functions */

obs_service_t *OBSBasic::GetService()
{
	if (!service) {
		service = obs_service_create("rtmp_common", NULL, NULL,
				nullptr);
		obs_service_release(service);
	}
	return service;
}

void OBSBasic::SetService(obs_service_t *newService)
{
	if (newService)
		service = newService;
}

bool OBSBasic::StreamingActive() const
{
	if (!outputHandler)
		return false;
	return outputHandler->StreamingActive();
}

bool OBSBasic::Active() const
{
	if (!outputHandler)
		return false;
	return outputHandler->Active();
}

#ifdef _WIN32
#define IS_WIN32 1
#else
#define IS_WIN32 0
#endif

static inline int AttemptToResetVideo(struct obs_video_info *ovi)
{
	return obs_reset_video(ovi);
}

static inline enum obs_scale_type GetScaleType(ConfigFile &basicConfig)
{
	const char *scaleTypeStr = config_get_string(basicConfig,
			"Video", "ScaleType");

	if (astrcmpi(scaleTypeStr, "bilinear") == 0)
		return OBS_SCALE_BILINEAR;
	else if (astrcmpi(scaleTypeStr, "lanczos") == 0)
		return OBS_SCALE_LANCZOS;
	else
		return OBS_SCALE_BICUBIC;
}

static inline enum video_format GetVideoFormatFromName(const char *name)
{
	if (astrcmpi(name, "I420") == 0)
		return VIDEO_FORMAT_I420;
	else if (astrcmpi(name, "NV12") == 0)
		return VIDEO_FORMAT_NV12;
	else if (astrcmpi(name, "I444") == 0)
		return VIDEO_FORMAT_I444;
#if 0 //currently unsupported
	else if (astrcmpi(name, "YVYU") == 0)
		return VIDEO_FORMAT_YVYU;
	else if (astrcmpi(name, "YUY2") == 0)
		return VIDEO_FORMAT_YUY2;
	else if (astrcmpi(name, "UYVY") == 0)
		return VIDEO_FORMAT_UYVY;
#endif
	else
		return VIDEO_FORMAT_RGBA;
}

int OBSBasic::ResetVideo()
{
	ProfileScope("OBSBasic::ResetVideo");

	struct obs_video_info ovi;
	int ret;

	GetConfigFPS(ovi.fps_num, ovi.fps_den);

	const char *colorFormat = config_get_string(basicConfig, "Video",
			"ColorFormat");
	const char *colorSpace = config_get_string(basicConfig, "Video",
			"ColorSpace");
	const char *colorRange = config_get_string(basicConfig, "Video",
			"ColorRange");

	ovi.graphics_module = App()->GetRenderModule();
	ovi.base_width     = (uint32_t)config_get_uint(basicConfig,
			"Video", "BaseCX");
	ovi.base_height    = (uint32_t)config_get_uint(basicConfig,
			"Video", "BaseCY");
	ovi.output_width   = (uint32_t)config_get_uint(basicConfig,
			"Video", "OutputCX");
	ovi.output_height  = (uint32_t)config_get_uint(basicConfig,
			"Video", "OutputCY");
	ovi.output_format  = GetVideoFormatFromName(colorFormat);
	ovi.colorspace     = astrcmpi(colorSpace, "601") == 0 ?
		VIDEO_CS_601 : VIDEO_CS_709;
	ovi.range          = astrcmpi(colorRange, "Full") == 0 ?
		VIDEO_RANGE_FULL : VIDEO_RANGE_PARTIAL;
	ovi.adapter        = 0;
	ovi.gpu_conversion = true;
	ovi.scale_type     = GetScaleType(basicConfig);

	if (ovi.base_width == 0 || ovi.base_height == 0) {
		ovi.base_width = 1920;
		ovi.base_height = 1080;
		config_set_uint(basicConfig, "Video", "BaseCX", 1920);
		config_set_uint(basicConfig, "Video", "BaseCY", 1080);
	}

	if (ovi.output_width == 0 || ovi.output_height == 0) {
		ovi.output_width = ovi.base_width;
		ovi.output_height = ovi.base_height;
		config_set_uint(basicConfig, "Video", "OutputCX",
				ovi.base_width);
		config_set_uint(basicConfig, "Video", "OutputCY",
				ovi.base_height);
	}

	ret = AttemptToResetVideo(&ovi);
	if (IS_WIN32 && ret != OBS_VIDEO_SUCCESS) {
		/* Try OpenGL if DirectX fails on windows */
		if (astrcmpi(ovi.graphics_module, DL_OPENGL) != 0) {
			blog(LOG_WARNING, "Failed to initialize obs video (%d) "
					  "with graphics_module='%s', retrying "
					  "with graphics_module='%s'",
					  ret, ovi.graphics_module,
					  DL_OPENGL);
			ovi.graphics_module = DL_OPENGL;
			ret = AttemptToResetVideo(&ovi);
		}
	} else if (ret == OBS_VIDEO_SUCCESS) {
		ResizePreview(ovi.base_width, ovi.base_height);
		if (program)
			ResizeProgram(ovi.base_width, ovi.base_height);
	}

	return ret;
}

bool OBSBasic::ResetAudio()
{
	ProfileScope("OBSBasic::ResetAudio");

	struct obs_audio_info ai;
	ai.samples_per_sec = config_get_uint(basicConfig, "Audio",
			"SampleRate");

	const char *channelSetupStr = config_get_string(basicConfig,
			"Audio", "ChannelSetup");

	if (strcmp(channelSetupStr, "Mono") == 0)
		ai.speakers = SPEAKERS_MONO;
	else
		ai.speakers = SPEAKERS_STEREO;

	return obs_reset_audio(&ai);
}

void OBSBasic::ResetAudioDevice(const char *sourceId, const char *deviceId,
		const char *deviceDesc, int channel)
{
	obs_source_t *source;
	obs_data_t *settings;
	bool same = false;

	source = obs_get_output_source(channel);
	if (source) {
		settings = obs_source_get_settings(source);
		const char *curId = obs_data_get_string(settings, "device_id");

		same = (strcmp(curId, deviceId) == 0);

		obs_data_release(settings);
		obs_source_release(source);
	}

	if (!same)
		obs_set_output_source(channel, nullptr);

	if (!same && strcmp(deviceId, "disabled") != 0) {
		obs_data_t *settings = obs_data_create();
		obs_data_set_string(settings, "device_id", deviceId);
		source = obs_source_create(sourceId, deviceDesc, settings,
				nullptr);
		obs_data_release(settings);

		obs_set_output_source(channel, source);
		obs_source_release(source);
	}
}

void OBSBasic::ResizePreview(uint32_t cx, uint32_t cy)
{
	QSize  targetSize;
	ScalingMode scalingMode;
	obs_video_info ovi;

	/* resize preview panel to fix to the top section of the window */
	targetSize = GetPixelSize(ui->preview);

	scalingMode = ui->preview->GetScalingMode();
	obs_get_video_info(&ovi);

	if (scalingMode == ScalingMode::Canvas) {
		previewScale = 1.0f;
		GetCenterPosFromFixedScale(int(cx), int(cy),
				targetSize.width() - PREVIEW_EDGE_SIZE * 2,
				targetSize.height() - PREVIEW_EDGE_SIZE * 2,
				previewX, previewY, previewScale);
		previewX += ui->preview->ScrollX();
		previewY += ui->preview->ScrollY();

	} else if (scalingMode == ScalingMode::Output) {
		previewScale = float(ovi.output_width) / float(ovi.base_width);
		GetCenterPosFromFixedScale(int(cx), int(cy),
				targetSize.width() - PREVIEW_EDGE_SIZE * 2,
				targetSize.height() - PREVIEW_EDGE_SIZE * 2,
				previewX, previewY, previewScale);
		previewX += ui->preview->ScrollX();
		previewY += ui->preview->ScrollY();

	} else {
		GetScaleAndCenterPos(int(cx), int(cy),
				targetSize.width() - PREVIEW_EDGE_SIZE * 2,
				targetSize.height() - PREVIEW_EDGE_SIZE * 2,
				previewX, previewY, previewScale);
	}

	previewX += float(PREVIEW_EDGE_SIZE);
	previewY += float(PREVIEW_EDGE_SIZE);
}

void OBSBasic::CloseDialogs()
{
	QList<QDialog*> childDialogs = this->findChildren<QDialog *>();
	if (!childDialogs.isEmpty()) {
		for (int i = 0; i < childDialogs.size(); ++i) {
			childDialogs.at(i)->close();
		}
	}

	for (QPointer<QWidget> &projector : projectors) {
		delete projector;
		projector.clear();
	}
}

void OBSBasic::ClearSceneData()
{
	disableSaving++;

	CloseDialogs();

	ClearVolumeControls();
	ClearListItems(ui->scenes);
	ClearListItems(ui->sources);
	ClearQuickTransitions();
	ui->transitions->clear();

	obs_set_output_source(0, nullptr);
	obs_set_output_source(1, nullptr);
	obs_set_output_source(2, nullptr);
	obs_set_output_source(3, nullptr);
	obs_set_output_source(4, nullptr);
	obs_set_output_source(5, nullptr);
	lastScene = nullptr;
	swapScene = nullptr;
	programScene = nullptr;

	auto cb = [](void *unused, obs_source_t *source)
	{
		obs_source_remove(source);
		UNUSED_PARAMETER(unused);
		return true;
	};

	obs_enum_sources(cb, nullptr);

	disableSaving--;

	blog(LOG_INFO, "All scene data cleared");
	blog(LOG_INFO, "------------------------------------------------");
}

void OBSBasic::closeEvent(QCloseEvent *event)
{
	if (isVisible())
		config_set_string(App()->GlobalConfig(),
				"BasicWindow", "geometry",
				saveGeometry().toBase64().constData());

	if (outputHandler && outputHandler->Active()) {
		SetShowing(true);

		QMessageBox::StandardButton button = QMessageBox::question(
				this, QTStr("ConfirmExit.Title"),
				QTStr("ConfirmExit.Text"));

		if (button == QMessageBox::No) {
			event->ignore();
			return;
		}
	}

	QWidget::closeEvent(event);
	if (!event->isAccepted())
		return;

	blog(LOG_INFO, SHUTDOWN_SEPARATOR);

	if (updateCheckThread)
		updateCheckThread->wait();
	if (logUploadThread)
		logUploadThread->wait();

	signalHandlers.clear();

	SaveProjectNow();

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_EXIT);

	disableSaving++;

	/* Clear all scene data (dialogs, widgets, widget sub-items, scenes,
	 * sources, etc) so that all references are released before shutdown */
	ClearSceneData();
}

void OBSBasic::changeEvent(QEvent *event)
{
	/* TODO */
	UNUSED_PARAMETER(event);
}

void OBSBasic::on_actionShow_Recordings_triggered()
{
	const char *mode = config_get_string(basicConfig, "Output", "Mode");
	const char *path = strcmp(mode, "Advanced") ?
		config_get_string(basicConfig, "SimpleOutput", "FilePath") :
		config_get_string(basicConfig, "AdvOut", "RecFilePath");
	QDesktopServices::openUrl(QUrl::fromLocalFile(path));
}

void OBSBasic::on_actionRemux_triggered()
{
	const char *mode = config_get_string(basicConfig, "Output", "Mode");
	const char *path = strcmp(mode, "Advanced") ?
		config_get_string(basicConfig, "SimpleOutput", "FilePath") :
		config_get_string(basicConfig, "AdvOut", "RecFilePath");
	OBSRemux remux(path, this);
	remux.exec();
}

void OBSBasic::on_action_Settings_triggered()
{
	disableHiding = true;
	OBSBasicSettings settings(this);
	settings.exec();
	SystemTray(false);
	disableHiding = false;
}

void OBSBasic::on_actionAdvAudioProperties_triggered()
{
	if (advAudioWindow != nullptr) {
		advAudioWindow->raise();
		return;
	}

	advAudioWindow = new OBSBasicAdvAudio(this);
	advAudioWindow->show();
	advAudioWindow->setAttribute(Qt::WA_DeleteOnClose, true);

	connect(advAudioWindow, SIGNAL(destroyed()),
		this, SLOT(on_advAudioProps_destroyed()));
}

void OBSBasic::on_advAudioProps_clicked()
{
	on_actionAdvAudioProperties_triggered();
}

void OBSBasic::on_advAudioProps_destroyed()
{
	advAudioWindow = nullptr;
}

void OBSBasic::on_scenes_currentItemChanged(QListWidgetItem *current,
		QListWidgetItem *prev)
{
	obs_source_t *source = NULL;

	if (sceneChanging)
		return;

	if (current) {
		obs_scene_t *scene;

		scene = GetOBSRef<OBSScene>(current);
		source = obs_scene_get_source(scene);
	}

	SetCurrentScene(source);

	UNUSED_PARAMETER(prev);
}

void OBSBasic::EditSceneName()
{
	QListWidgetItem *item = ui->scenes->currentItem();
	Qt::ItemFlags flags   = item->flags();

	item->setFlags(flags | Qt::ItemIsEditable);
	ui->scenes->editItem(item);
	item->setFlags(flags);
}

static void AddProjectorMenuMonitors(QMenu *parent, QObject *target,
		const char *slot)
{
	QAction *action;
	QList<QScreen*> screens = QGuiApplication::screens();
	for (int i = 0; i < screens.size(); i++) {
		QRect screenGeometry = screens[i]->geometry();
		QString str = QString("%1 %2: %3x%4 @ %5,%6").
			arg(QTStr("Display"),
			    QString::number(i),
			    QString::number((int)screenGeometry.width()),
			    QString::number((int)screenGeometry.height()),
			    QString::number((int)screenGeometry.x()),
			    QString::number((int)screenGeometry.y()));

		action = parent->addAction(str, target, slot);
		action->setProperty("monitor", i);
	}
}

void OBSBasic::on_scenes_customContextMenuRequested(const QPoint &pos)
{
	QListWidgetItem *item = ui->scenes->itemAt(pos);
	QPointer<QMenu> sceneProjectorMenu;

	QMenu popup(this);
	QMenu order(QTStr("Basic.MainMenu.Edit.Order"), this);
	popup.addAction(QTStr("Add"),
			this, SLOT(on_actionAddScene_triggered()));

	if (item) {
		popup.addSeparator();
		popup.addAction(QTStr("Duplicate"),
				this, SLOT(DuplicateSelectedScene()));
		popup.addAction(QTStr("Rename"),
				this, SLOT(EditSceneName()));
		popup.addAction(QTStr("Remove"),
				this, SLOT(RemoveSelectedScene()),
				DeleteKeys.front());
		popup.addSeparator();

		order.addAction(QTStr("Basic.MainMenu.Edit.Order.MoveUp"),
				this, SLOT(on_actionSceneUp_triggered()));
		order.addAction(QTStr("Basic.MainMenu.Edit.Order.MoveDown"),
				this, SLOT(on_actionSceneDown_triggered()));
		order.addSeparator();
		order.addAction(QTStr("Basic.MainMenu.Edit.Order.MoveToTop"),
				this, SLOT(MoveSceneToTop()));
		order.addAction(QTStr("Basic.MainMenu.Edit.Order.MoveToBottom"),
				this, SLOT(MoveSceneToBottom()));
		popup.addMenu(&order);

		popup.addSeparator();
		sceneProjectorMenu = new QMenu(QTStr("SceneProjector"));
		AddProjectorMenuMonitors(sceneProjectorMenu, this,
				SLOT(OpenSceneProjector()));
		popup.addMenu(sceneProjectorMenu);
		popup.addSeparator();
		popup.addAction(QTStr("Filters"), this,
				SLOT(OpenSceneFilters()));
	}

	popup.exec(QCursor::pos());
}

void OBSBasic::on_actionAddScene_triggered()
{
	string name;
	QString format{QTStr("Basic.Main.DefaultSceneName.Text")};

	int i = 1;
	QString placeHolderText = format.arg(i);
	obs_source_t *source = nullptr;
	while ((source = obs_get_source_by_name(QT_TO_UTF8(placeHolderText)))) {
		obs_source_release(source);
		placeHolderText = format.arg(++i);
	}

	bool accepted = NameDialog::AskForName(this,
			QTStr("Basic.Main.AddSceneDlg.Title"),
			QTStr("Basic.Main.AddSceneDlg.Text"),
			name,
			placeHolderText);

	if (accepted) {
		if (name.empty()) {
			QMessageBox::information(this,
					QTStr("NoNameEntered.Title"),
					QTStr("NoNameEntered.Text"));
			on_actionAddScene_triggered();
			return;
		}

		obs_source_t *source = obs_get_source_by_name(name.c_str());
		if (source) {
			QMessageBox::information(this,
					QTStr("NameExists.Title"),
					QTStr("NameExists.Text"));

			obs_source_release(source);
			on_actionAddScene_triggered();
			return;
		}

		obs_scene_t *scene = obs_scene_create(name.c_str());
		source = obs_scene_get_source(scene);
		AddScene(source);
		SetCurrentScene(source);
		obs_scene_release(scene);
	}
}

void OBSBasic::on_actionRemoveScene_triggered()
{
	OBSScene     scene  = GetCurrentScene();
	obs_source_t *source = obs_scene_get_source(scene);

	if (source && QueryRemoveSource(source))
		obs_source_remove(source);
}

void OBSBasic::ChangeSceneIndex(bool relative, int offset, int invalidIdx)
{
	int idx = ui->scenes->currentRow();
	if (idx == -1 || idx == invalidIdx)
		return;

	sceneChanging = true;

	QListWidgetItem *item = ui->scenes->takeItem(idx);

	if (!relative)
		idx = 0;

	ui->scenes->insertItem(idx + offset, item);
	ui->scenes->setCurrentRow(idx + offset);
	item->setSelected(true);

	sceneChanging = false;
}

void OBSBasic::on_actionSceneUp_triggered()
{
	ChangeSceneIndex(true, -1, 0);
}

void OBSBasic::on_actionSceneDown_triggered()
{
	ChangeSceneIndex(true, 1, ui->scenes->count() - 1);
}

void OBSBasic::MoveSceneToTop()
{
	ChangeSceneIndex(false, 0, 0);
}

void OBSBasic::MoveSceneToBottom()
{
	ChangeSceneIndex(false, ui->scenes->count() - 1,
			ui->scenes->count() - 1);
}

void OBSBasic::on_sources_itemSelectionChanged()
{
	SignalBlocker sourcesSignalBlocker(ui->sources);

	auto updateItemSelection = [&]()
	{
		ignoreSelectionUpdate = true;
		for (int i = 0; i < ui->sources->count(); i++)
		{
			QListWidgetItem *wItem = ui->sources->item(i);
			OBSSceneItem item = GetOBSRef<OBSSceneItem>(wItem);

			obs_sceneitem_select(item, wItem->isSelected());
		}
		ignoreSelectionUpdate = false;
	};
	using updateItemSelection_t = decltype(updateItemSelection);

	obs_scene_atomic_update(GetCurrentScene(),
			[](void *data, obs_scene_t *)
	{
		(*static_cast<updateItemSelection_t*>(data))();
	}, static_cast<void*>(&updateItemSelection));
}

void OBSBasic::EditSceneItemName()
{
	QListWidgetItem *item = GetTopSelectedSourceItem();
	Qt::ItemFlags flags   = item->flags();
	OBSSceneItem sceneItem= GetOBSRef<OBSSceneItem>(item);
	obs_source_t *source  = obs_sceneitem_get_source(sceneItem);
	const char *name      = obs_source_get_name(source);

	item->setText(QT_UTF8(name));
	item->setFlags(flags | Qt::ItemIsEditable);
	ui->sources->removeItemWidget(item);
	ui->sources->editItem(item);
	item->setFlags(flags);
}

void OBSBasic::SetDeinterlacingMode()
{
	QAction *action = reinterpret_cast<QAction*>(sender());
	obs_deinterlace_mode mode =
		(obs_deinterlace_mode)action->property("mode").toInt();
	OBSSceneItem sceneItem = GetCurrentSceneItem();
	obs_source_t *source = obs_sceneitem_get_source(sceneItem);

	obs_source_set_deinterlace_mode(source, mode);
}

void OBSBasic::SetDeinterlacingOrder()
{
	QAction *action = reinterpret_cast<QAction*>(sender());
	obs_deinterlace_field_order order =
		(obs_deinterlace_field_order)action->property("order").toInt();
	OBSSceneItem sceneItem = GetCurrentSceneItem();
	obs_source_t *source = obs_sceneitem_get_source(sceneItem);

	obs_source_set_deinterlace_field_order(source, order);
}

QMenu *OBSBasic::AddDeinterlacingMenu(obs_source_t *source)
{
	QMenu *menu = new QMenu(QTStr("Deinterlacing"));
	obs_deinterlace_mode deinterlaceMode =
		obs_source_get_deinterlace_mode(source);
	obs_deinterlace_field_order deinterlaceOrder =
		obs_source_get_deinterlace_field_order(source);
	QAction *action;

#define ADD_MODE(name, mode) \
	action = menu->addAction(QTStr("" name), this, \
				SLOT(SetDeinterlacingMode())); \
	action->setProperty("mode", (int)mode); \
	action->setCheckable(true); \
	action->setChecked(deinterlaceMode == mode);

	ADD_MODE("Disable",                OBS_DEINTERLACE_MODE_DISABLE);
	ADD_MODE("Deinterlacing.Discard",  OBS_DEINTERLACE_MODE_DISCARD);
	ADD_MODE("Deinterlacing.Retro",    OBS_DEINTERLACE_MODE_RETRO);
	ADD_MODE("Deinterlacing.Blend",    OBS_DEINTERLACE_MODE_BLEND);
	ADD_MODE("Deinterlacing.Blend2x",  OBS_DEINTERLACE_MODE_BLEND_2X);
	ADD_MODE("Deinterlacing.Linear",   OBS_DEINTERLACE_MODE_LINEAR);
	ADD_MODE("Deinterlacing.Linear2x", OBS_DEINTERLACE_MODE_LINEAR_2X);
	ADD_MODE("Deinterlacing.Yadif",    OBS_DEINTERLACE_MODE_YADIF);
	ADD_MODE("Deinterlacing.Yadif2x",  OBS_DEINTERLACE_MODE_YADIF_2X);
#undef ADD_MODE

	menu->addSeparator();

#define ADD_ORDER(name, order) \
	action = menu->addAction(QTStr("Deinterlacing." name), this, \
				SLOT(SetDeinterlacingOrder())); \
	action->setProperty("order", (int)order); \
	action->setCheckable(true); \
	action->setChecked(deinterlaceOrder == order);

	ADD_ORDER("TopFieldFirst",    OBS_DEINTERLACE_FIELD_ORDER_TOP);
	ADD_ORDER("BottomFieldFirst", OBS_DEINTERLACE_FIELD_ORDER_BOTTOM);
#undef ADD_ORDER

	return menu;
}

void OBSBasic::SetScaleFilter()
{
	QAction *action = reinterpret_cast<QAction*>(sender());
	obs_scale_type mode = (obs_scale_type)action->property("mode").toInt();
	OBSSceneItem sceneItem = GetCurrentSceneItem();

	obs_sceneitem_set_scale_filter(sceneItem, mode);
}

QMenu *OBSBasic::AddScaleFilteringMenu(obs_sceneitem_t *item)
{
	QMenu *menu = new QMenu(QTStr("ScaleFiltering"));
	obs_scale_type scaleFilter = obs_sceneitem_get_scale_filter(item);
	QAction *action;

#define ADD_MODE(name, mode) \
	action = menu->addAction(QTStr("" name), this, \
				SLOT(SetScaleFilter())); \
	action->setProperty("mode", (int)mode); \
	action->setCheckable(true); \
	action->setChecked(scaleFilter == mode);

	ADD_MODE("Disable",                 OBS_SCALE_DISABLE);
	ADD_MODE("ScaleFiltering.Point",    OBS_SCALE_POINT);
	ADD_MODE("ScaleFiltering.Bilinear", OBS_SCALE_BILINEAR);
	ADD_MODE("ScaleFiltering.Bicubic",  OBS_SCALE_BICUBIC);
	ADD_MODE("ScaleFiltering.Lanczos",  OBS_SCALE_LANCZOS);
#undef ADD_MODE

	return menu;
}

void OBSBasic::CreateSourcePopupMenu(QListWidgetItem *item, bool preview)
{
	QMenu popup(this);
	QPointer<QMenu> previewProjector;
	QPointer<QMenu> sourceProjector;

	if (preview) {
		QAction *action = popup.addAction(
				QTStr("Basic.Main.PreviewConextMenu.Enable"),
				this, SLOT(TogglePreview()));
		action->setCheckable(true);
		action->setChecked(
				obs_display_enabled(ui->preview->GetDisplay()));
		if (IsPreviewProgramMode())
			action->setEnabled(false);

		popup.addAction(ui->actionLockPreview);
		popup.addMenu(ui->scalingMenu);

		previewProjector = new QMenu(QTStr("PreviewProjector"));
		AddProjectorMenuMonitors(previewProjector, this,
				SLOT(OpenPreviewProjector()));

		popup.addMenu(previewProjector);

		popup.addSeparator();
	}

	QPointer<QMenu> addSourceMenu = CreateAddSourcePopupMenu();
	if (addSourceMenu)
		popup.addMenu(addSourceMenu);

	if (item) {
		if (addSourceMenu)
			popup.addSeparator();

		OBSSceneItem sceneItem = GetSceneItem(item);
		obs_source_t *source = obs_sceneitem_get_source(sceneItem);
		uint32_t flags = obs_source_get_output_flags(source);
		bool isAsyncVideo = (flags & OBS_SOURCE_ASYNC_VIDEO) ==
			OBS_SOURCE_ASYNC_VIDEO;
		QAction *action;

		popup.addAction(QTStr("Rename"), this,
				SLOT(EditSceneItemName()));
		popup.addAction(QTStr("Remove"), this,
				SLOT(on_actionRemoveSource_triggered()),
				DeleteKeys.front());
		popup.addSeparator();
		popup.addMenu(ui->orderMenu);
		popup.addMenu(ui->transformMenu);

		sourceProjector = new QMenu(QTStr("SourceProjector"));
		AddProjectorMenuMonitors(sourceProjector, this,
				SLOT(OpenSourceProjector()));

		popup.addSeparator();
		if (isAsyncVideo) {
			popup.addMenu(AddDeinterlacingMenu(source));
			popup.addSeparator();
		}

		popup.addMenu(AddScaleFilteringMenu(sceneItem));
		popup.addSeparator();

		popup.addMenu(sourceProjector);
		popup.addSeparator();

		action = popup.addAction(QTStr("Interact"), this,
				SLOT(on_actionInteract_triggered()));

		action->setEnabled(obs_source_get_output_flags(source) &
				OBS_SOURCE_INTERACTION);

		popup.addAction(QTStr("Filters"), this,
				SLOT(OpenFilters()));
		popup.addAction(QTStr("Properties"), this,
				SLOT(on_actionSourceProperties_triggered()));
	}

	popup.exec(QCursor::pos());
}

void OBSBasic::on_sources_customContextMenuRequested(const QPoint &pos)
{
	if (ui->scenes->count())
		CreateSourcePopupMenu(ui->sources->itemAt(pos), false);
}

void OBSBasic::on_sources_itemDoubleClicked(QListWidgetItem *witem)
{
	if (!witem)
		return;

	OBSSceneItem item = GetSceneItem(witem);
	OBSSource source = obs_sceneitem_get_source(item);

	if (source)
		CreatePropertiesWindow(source);
}

void OBSBasic::AddSource(const char *id)
{
	if (id && *id) {
		OBSBasicSourceSelect sourceSelect(this, id);
		sourceSelect.exec();
		if (sourceSelect.newSource)
			CreatePropertiesWindow(sourceSelect.newSource);
	}
}

QMenu *OBSBasic::CreateAddSourcePopupMenu()
{
	const char *type;
	bool foundValues = false;
	bool foundDeprecated = false;
	size_t idx = 0;

	QMenu *popup = new QMenu(QTStr("Add"), this);
	QMenu *deprecated = new QMenu(QTStr("Deprecated"), popup);

	auto getActionAfter = [] (QMenu *menu, const QString &name)
	{
		QList<QAction*> actions = menu->actions();

		for (QAction *menuAction : actions) {
			if (menuAction->text().compare(name) >= 0)
				return menuAction;
		}

		return (QAction*)nullptr;
	};

	auto addSource = [this, getActionAfter] (QMenu *popup,
			const char *type, const char *name)
	{
		QString qname = QT_UTF8(name);
		QAction *popupItem = new QAction(qname, this);
		popupItem->setData(QT_UTF8(type));
		connect(popupItem, SIGNAL(triggered(bool)),
				this, SLOT(AddSourceFromAction()));

		QAction *after = getActionAfter(popup, qname);
		popup->insertAction(after, popupItem);
	};

	while (obs_enum_input_types(idx++, &type)) {
		const char *name = obs_source_get_display_name(type);
		uint32_t caps = obs_get_source_output_flags(type);

		if ((caps & OBS_SOURCE_DEPRECATED) == 0) {
			addSource(popup, type, name);
		} else {
			addSource(deprecated, type, name);
			foundDeprecated = true;
		}
		foundValues = true;
	}

	addSource(popup, "scene", Str("Basic.Scene"));

	if (!foundDeprecated) {
		delete deprecated;
		deprecated = nullptr;
	}

	if (!foundValues) {
		delete popup;
		popup = nullptr;

	} else if (foundDeprecated) {
		popup->addMenu(deprecated);
	}

	return popup;
}

void OBSBasic::AddSourceFromAction()
{
	QAction *action = qobject_cast<QAction*>(sender());
	if (!action)
		return;

	AddSource(QT_TO_UTF8(action->data().toString()));
}

void OBSBasic::AddSourcePopupMenu(const QPoint &pos)
{
	if (!GetCurrentScene()) {
		// Tell the user he needs a scene first (help beginners).
		QMessageBox::information(this,
				QTStr("Basic.Main.AddSourceHelp.Title"),
				QTStr("Basic.Main.AddSourceHelp.Text"));
		return;
	}

	QPointer<QMenu> popup = CreateAddSourcePopupMenu();
	if (popup)
		popup->exec(pos);
}

void OBSBasic::on_actionAddSource_triggered()
{
	AddSourcePopupMenu(QCursor::pos());
}

void OBSBasic::on_actionRemoveSource_triggered()
{
	vector<OBSSceneItem> items;

	auto func = [] (obs_scene_t *, obs_sceneitem_t *item, void *param)
	{
		vector<OBSSceneItem> &items =
			*reinterpret_cast<vector<OBSSceneItem>*>(param);
		if (obs_sceneitem_selected(item))
			items.emplace_back(item);
		return true;
	};

	obs_scene_enum_items(GetCurrentScene(), func, &items);

	if (!items.size())
		return;

	auto removeMultiple = [this] (size_t count)
	{
		QString text = QTStr("ConfirmRemove.TextMultiple")
			.arg(QString::number(count));

		QMessageBox remove_items(this);
		remove_items.setText(text);
		QAbstractButton *Yes = remove_items.addButton(QTStr("Yes"),
				QMessageBox::YesRole);
		remove_items.addButton(QTStr("No"), QMessageBox::NoRole);
		remove_items.setIcon(QMessageBox::Question);
		remove_items.setWindowTitle(QTStr("ConfirmRemove.Title"));
		remove_items.exec();

		return Yes == remove_items.clickedButton();
	};

	if (items.size() == 1) {
		OBSSceneItem &item = items[0];
		obs_source_t *source = obs_sceneitem_get_source(item);

		if (source && QueryRemoveSource(source))
			obs_sceneitem_remove(item);
	} else {
		if (removeMultiple(items.size())) {
			for (auto &item : items)
				obs_sceneitem_remove(item);
		}
	}
}

void OBSBasic::on_actionInteract_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	OBSSource source = obs_sceneitem_get_source(item);

	if (source)
		CreateInteractionWindow(source);
}

void OBSBasic::on_actionSourceProperties_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	OBSSource source = obs_sceneitem_get_source(item);

	if (source)
		CreatePropertiesWindow(source);
}

void OBSBasic::on_actionSourceUp_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_UP);
}

void OBSBasic::on_actionSourceDown_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_DOWN);
}

void OBSBasic::on_actionMoveUp_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_UP);
}

void OBSBasic::on_actionMoveDown_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_DOWN);
}

void OBSBasic::on_actionMoveToTop_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_TOP);
}

void OBSBasic::on_actionMoveToBottom_triggered()
{
	OBSSceneItem item = GetCurrentSceneItem();
	obs_sceneitem_set_order(item, OBS_ORDER_MOVE_BOTTOM);
}

static BPtr<char> ReadLogFile(const char *log)
{
	char logDir[512];
	if (GetConfigPath(logDir, sizeof(logDir), "obs-studio/logs") <= 0)
		return nullptr;

	string path = (char*)logDir;
	path += "/";
	path += log;

	BPtr<char> file = os_quick_read_utf8_file(path.c_str());
	if (!file)
		blog(LOG_WARNING, "Failed to read log file %s", path.c_str());

	return file;
}

void OBSBasic::UploadLog(const char *file)
{
	BPtr<char> fileString{ReadLogFile(file)};

	if (!fileString)
		return;

	if (!*fileString)
		return;

	ui->menuLogFiles->setEnabled(false);

	auto data_deleter = [](obs_data_t *d) { obs_data_release(d); };
	using data_t = unique_ptr<struct obs_data, decltype(data_deleter)>;

	data_t content{obs_data_create(), data_deleter};
	data_t files{obs_data_create(), data_deleter};
	data_t request{obs_data_create(), data_deleter};

	obs_data_set_string(content.get(), "content", fileString);

	obs_data_set_obj(files.get(), file, content.get());

	stringstream ss;
	ss << "OBS " << App()->GetVersionString()
	   << " log file uploaded at " << CurrentDateTimeString();
	obs_data_set_string(request.get(), "description", ss.str().c_str());
	obs_data_set_bool(request.get(), "public", false);
	obs_data_set_obj(request.get(), "files", files.get());

	const char *json = obs_data_get_json(request.get());
	if (!json) {
		blog(LOG_ERROR, "Failed to get JSON data for log upload");
		return;
	}

	QBuffer *postData = new QBuffer();
	postData->setData(json, (int) strlen(json));

	if (logUploadThread) {
		logUploadThread->wait();
		delete logUploadThread;
	}

	RemoteTextThread *thread = new RemoteTextThread(
			"https://api.github.com/gists",
			"application/json", json);
	logUploadThread = thread;
	connect(thread, &RemoteTextThread::Result,
			this, &OBSBasic::logUploadFinished);
	logUploadThread->start();
}

void OBSBasic::on_actionShowLogs_triggered()
{
	char logDir[512];
	if (GetConfigPath(logDir, sizeof(logDir), "obs-studio/logs") <= 0)
		return;

	QUrl url = QUrl::fromLocalFile(QT_UTF8(logDir));
	QDesktopServices::openUrl(url);
}

void OBSBasic::on_actionUploadCurrentLog_triggered()
{
	UploadLog(App()->GetCurrentLog());
}

void OBSBasic::on_actionUploadLastLog_triggered()
{
	UploadLog(App()->GetLastLog());
}

void OBSBasic::on_actionViewCurrentLog_triggered()
{
	char logDir[512];
	if (GetConfigPath(logDir, sizeof(logDir), "obs-studio/logs") <= 0)
		return;

	const char* log = App()->GetCurrentLog();

	string path = (char*)logDir;
	path += "/";
	path += log;

	QUrl url = QUrl::fromLocalFile(QT_UTF8(path.c_str()));
	QDesktopServices::openUrl(url);
}

void OBSBasic::on_actionCheckForUpdates_triggered()
{
	CheckForUpdates();
}

void OBSBasic::logUploadFinished(const QString &text, const QString &error)
{
	ui->menuLogFiles->setEnabled(true);

	if (text.isEmpty()) {
		QMessageBox::information(this,
				QTStr("LogReturnDialog.ErrorUploadingLog"),
				error);
		return;
	}

	obs_data_t *returnData = obs_data_create_from_json(QT_TO_UTF8(text));
	QString logURL         = obs_data_get_string(returnData, "html_url");
	obs_data_release(returnData);

	OBSLogReply logDialog(this, logURL);
	logDialog.exec();
}

static void RenameListItem(OBSBasic *parent, QListWidget *listWidget,
		obs_source_t *source, const string &name)
{
	const char *prevName = obs_source_get_name(source);
	if (name == prevName)
		return;

	obs_source_t    *foundSource = obs_get_source_by_name(name.c_str());
	QListWidgetItem *listItem    = listWidget->currentItem();

	if (foundSource || name.empty()) {
		listItem->setText(QT_UTF8(prevName));

		if (foundSource) {
			QMessageBox::information(parent,
				QTStr("NameExists.Title"),
				QTStr("NameExists.Text"));
		} else if (name.empty()) {
			QMessageBox::information(parent,
				QTStr("NoNameEntered.Title"),
				QTStr("NoNameEntered.Text"));
		}

		obs_source_release(foundSource);
	} else {
		listItem->setText(QT_UTF8(name.c_str()));
		obs_source_set_name(source, name.c_str());
	}
}

void OBSBasic::SceneNameEdited(QWidget *editor,
		QAbstractItemDelegate::EndEditHint endHint)
{
	OBSScene  scene = GetCurrentScene();
	QLineEdit *edit = qobject_cast<QLineEdit*>(editor);
	string    text  = QT_TO_UTF8(edit->text().trimmed());

	if (!scene)
		return;

	obs_source_t *source = obs_scene_get_source(scene);
	RenameListItem(this, ui->scenes, source, text);

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_SCENE_LIST_CHANGED);

	UNUSED_PARAMETER(endHint);
}

void OBSBasic::SceneItemNameEdited(QWidget *editor,
		QAbstractItemDelegate::EndEditHint endHint)
{
	OBSSceneItem item  = GetCurrentSceneItem();
	QLineEdit    *edit = qobject_cast<QLineEdit*>(editor);
	string       text  = QT_TO_UTF8(edit->text().trimmed());

	if (!item)
		return;

	obs_source_t *source = obs_sceneitem_get_source(item);
	RenameListItem(this, ui->sources, source, text);

	QListWidgetItem *listItem = ui->sources->currentItem();
	listItem->setText(QString());
	SetupVisibilityItem(ui->sources, listItem, item);

	UNUSED_PARAMETER(endHint);
}

void OBSBasic::OpenFilters()
{
	OBSSceneItem item = GetCurrentSceneItem();
	OBSSource source = obs_sceneitem_get_source(item);

	CreateFiltersWindow(source);
}

void OBSBasic::OpenSceneFilters()
{
	OBSScene scene = GetCurrentScene();
	OBSSource source = obs_scene_get_source(scene);

	CreateFiltersWindow(source);
}

#define RECORDING_START \
	"==== Recording Start ==============================================="
#define RECORDING_STOP \
	"==== Recording Stop ================================================"
#define REPLAY_BUFFER_START \
	"==== Replay Buffer Start ==========================================="
#define REPLAY_BUFFER_STOP \
	"==== Replay Buffer Stop ============================================"
#define STREAMING_START \
	"==== Streaming Start ==============================================="
#define STREAMING_STOP \
	"==== Streaming Stop ================================================"

void OBSBasic::StartStreaming()
{
	if (outputHandler->StreamingActive())
		return;

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_STREAMING_STARTING);

	SaveProject();

	ui->streamButton->setEnabled(false);
	ui->streamButton->setText(QTStr("Basic.Main.Connecting"));

	if (sysTrayStream) {
		sysTrayStream->setEnabled(false);
		sysTrayStream->setText(ui->streamButton->text());
	}

	if (!outputHandler->StartStreaming(service)) {
		ui->streamButton->setText(QTStr("Basic.Main.StartStreaming"));
		ui->streamButton->setEnabled(true);

		if (sysTrayStream) {
			sysTrayStream->setText(ui->streamButton->text());
			sysTrayStream->setEnabled(true);
		}
	}

	bool recordWhenStreaming = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "RecordWhenStreaming");
	if (recordWhenStreaming)
		StartRecording();
}

#ifdef _WIN32
static inline void UpdateProcessPriority()
{
	const char *priority = config_get_string(App()->GlobalConfig(),
			"General", "ProcessPriority");
	if (priority && strcmp(priority, "Normal") != 0)
		SetProcessPriority(priority);
}

static inline void ClearProcessPriority()
{
	const char *priority = config_get_string(App()->GlobalConfig(),
			"General", "ProcessPriority");
	if (priority && strcmp(priority, "Normal") != 0)
		SetProcessPriority("Normal");
}
#else
#define UpdateProcessPriority() do {} while(false)
#define ClearProcessPriority() do {} while(false)
#endif

inline void OBSBasic::OnActivate()
{
	if (ui->profileMenu->isEnabled()) {
		ui->profileMenu->setEnabled(false);
		App()->IncrementSleepInhibition();
		UpdateProcessPriority();

		if (trayIcon)
			trayIcon->setIcon(QIcon(":/res/images/tray_active.png"));
	}
}

inline void OBSBasic::OnDeactivate()
{
	if (!outputHandler->Active() && !ui->profileMenu->isEnabled()) {
		ui->profileMenu->setEnabled(true);
		App()->DecrementSleepInhibition();
		ClearProcessPriority();

		if (trayIcon)
			trayIcon->setIcon(QIcon(":/res/images/obs.png"));
	}
}

void OBSBasic::StopStreaming()
{
	SaveProject();

	if (outputHandler->StreamingActive())
		outputHandler->StopStreaming(streamingStopping);

	OnDeactivate();

	bool recordWhenStreaming = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "RecordWhenStreaming");
	bool keepRecordingWhenStreamStops = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "KeepRecordingWhenStreamStops");
	if (recordWhenStreaming && !keepRecordingWhenStreamStops)
		StopRecording();
}

void OBSBasic::ForceStopStreaming()
{
	SaveProject();

	if (outputHandler->StreamingActive())
		outputHandler->StopStreaming(true);

	OnDeactivate();

	bool recordWhenStreaming = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "RecordWhenStreaming");
	bool keepRecordingWhenStreamStops = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "KeepRecordingWhenStreamStops");
	if (recordWhenStreaming && !keepRecordingWhenStreamStops)
		StopRecording();
}

void OBSBasic::StreamDelayStarting(int sec)
{
	ui->streamButton->setText(QTStr("Basic.Main.StopStreaming"));
	ui->streamButton->setEnabled(true);

	if (sysTrayStream) {
		sysTrayStream->setText(ui->streamButton->text());
		sysTrayStream->setEnabled(true);
	}

	if (!startStreamMenu.isNull())
		startStreamMenu->deleteLater();

	startStreamMenu = new QMenu();
	startStreamMenu->addAction(QTStr("Basic.Main.StopStreaming"),
			this, SLOT(StopStreaming()));
	startStreamMenu->addAction(QTStr("Basic.Main.ForceStopStreaming"),
			this, SLOT(ForceStopStreaming()));
	ui->streamButton->setMenu(startStreamMenu);

	ui->statusbar->StreamDelayStarting(sec);

	OnActivate();
}

void OBSBasic::StreamDelayStopping(int sec)
{
	ui->streamButton->setText(QTStr("Basic.Main.StartStreaming"));
	ui->streamButton->setEnabled(true);

	if (sysTrayStream) {
		sysTrayStream->setText(ui->streamButton->text());
		sysTrayStream->setEnabled(true);
	}

	if (!startStreamMenu.isNull())
		startStreamMenu->deleteLater();

	startStreamMenu = new QMenu();
	startStreamMenu->addAction(QTStr("Basic.Main.StartStreaming"),
			this, SLOT(StartStreaming()));
	startStreamMenu->addAction(QTStr("Basic.Main.ForceStopStreaming"),
			this, SLOT(ForceStopStreaming()));
	ui->streamButton->setMenu(startStreamMenu);

	ui->statusbar->StreamDelayStopping(sec);
}

void OBSBasic::StreamingStart()
{
	ui->streamButton->setText(QTStr("Basic.Main.StopStreaming"));
	ui->streamButton->setEnabled(true);
	ui->statusbar->StreamStarted(outputHandler->streamOutput);

	if (sysTrayStream) {
		sysTrayStream->setText(ui->streamButton->text());
		sysTrayStream->setEnabled(true);
	}

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_STREAMING_STARTED);

	OnActivate();

	blog(LOG_INFO, STREAMING_START);
}

void OBSBasic::StreamStopping()
{
	ui->streamButton->setText(QTStr("Basic.Main.StoppingStreaming"));

	if (sysTrayStream)
		sysTrayStream->setText(ui->streamButton->text());

	streamingStopping = true;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_STREAMING_STOPPING);
}

void OBSBasic::StreamingStop(int code)
{
	const char *errorMessage;

	switch (code) {
	case OBS_OUTPUT_BAD_PATH:
		errorMessage = Str("Output.ConnectFail.BadPath");
		break;

	case OBS_OUTPUT_CONNECT_FAILED:
		errorMessage = Str("Output.ConnectFail.ConnectFailed");
		break;

	case OBS_OUTPUT_INVALID_STREAM:
		errorMessage = Str("Output.ConnectFail.InvalidStream");
		break;

	default:
	case OBS_OUTPUT_ERROR:
		errorMessage = Str("Output.ConnectFail.Error");
		break;

	case OBS_OUTPUT_DISCONNECTED:
		/* doesn't happen if output is set to reconnect.  note that
		 * reconnects are handled in the output, not in the UI */
		errorMessage = Str("Output.ConnectFail.Disconnected");
	}

	ui->statusbar->StreamStopped();

	ui->streamButton->setText(QTStr("Basic.Main.StartStreaming"));
	ui->streamButton->setEnabled(true);

	if (sysTrayStream) {
		sysTrayStream->setText(ui->streamButton->text());
		sysTrayStream->setEnabled(true);
	}

	streamingStopping = false;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_STREAMING_STOPPED);

	OnDeactivate();

	blog(LOG_INFO, STREAMING_STOP);

	if (code != OBS_OUTPUT_SUCCESS && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.ConnectFail.Title"),
				QT_UTF8(errorMessage));
	} else if (code != OBS_OUTPUT_SUCCESS && !isVisible()) {
		SysTrayNotify(QT_UTF8(errorMessage), QSystemTrayIcon::Warning);
	}

	if (!startStreamMenu.isNull()) {
		ui->streamButton->setMenu(nullptr);
		startStreamMenu->deleteLater();
		startStreamMenu = nullptr;
	}
}

void OBSBasic::StartRecording()
{
	if (outputHandler->RecordingActive())
		return;

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_RECORDING_STARTING);

	SaveProject();
	outputHandler->StartRecording();
}

void OBSBasic::RecordStopping()
{
	ui->recordButton->setText(QTStr("Basic.Main.StoppingRecording"));

	if (sysTrayRecord)
		sysTrayRecord->setText(ui->recordButton->text());

	recordingStopping = true;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_RECORDING_STOPPING);
}

void OBSBasic::StopRecording()
{
	SaveProject();

	if (outputHandler->RecordingActive())
		outputHandler->StopRecording(recordingStopping);

	OnDeactivate();
}

void OBSBasic::RecordingStart()
{
	ui->statusbar->RecordingStarted(outputHandler->fileOutput);
	ui->recordButton->setText(QTStr("Basic.Main.StopRecording"));

	if (sysTrayRecord)
		sysTrayRecord->setText(ui->recordButton->text());

	recordingStopping = false;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_RECORDING_STARTED);

	OnActivate();

	blog(LOG_INFO, RECORDING_START);
}

void OBSBasic::RecordingStop(int code)
{
	ui->statusbar->RecordingStopped();
	ui->recordButton->setText(QTStr("Basic.Main.StartRecording"));

	if (sysTrayRecord)
		sysTrayRecord->setText(ui->recordButton->text());

	blog(LOG_INFO, RECORDING_STOP);

	if (code == OBS_OUTPUT_UNSUPPORTED && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordFail.Title"),
				QTStr("Output.RecordFail.Unsupported"));

	} else if (code == OBS_OUTPUT_NO_SPACE && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordNoSpace.Title"),
				QTStr("Output.RecordNoSpace.Msg"));

	} else if (code != OBS_OUTPUT_SUCCESS && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordError.Title"),
				QTStr("Output.RecordError.Msg"));

	} else if (code == OBS_OUTPUT_UNSUPPORTED && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordFail.Unsupported"),
			QSystemTrayIcon::Warning);

	} else if (code == OBS_OUTPUT_NO_SPACE && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordNoSpace.Msg"),
			QSystemTrayIcon::Warning);

	} else if (code != OBS_OUTPUT_SUCCESS && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordError.Msg"),
			QSystemTrayIcon::Warning);
	}

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_RECORDING_STOPPED);

	OnDeactivate();
}

#define RP_NO_HOTKEY_TITLE QTStr("Output.ReplayBuffer.NoHotkey.Title")
#define RP_NO_HOTKEY_TEXT  QTStr("Output.ReplayBuffer.NoHotkey.Msg")

void OBSBasic::StartReplayBuffer()
{
	if (!outputHandler || !outputHandler->replayBuffer)
		return;
	if (outputHandler->ReplayBufferActive())
		return;

	obs_output_t *output = outputHandler->replayBuffer;
	obs_data_t *hotkeys = obs_hotkeys_save_output(output);
	obs_data_array_t *bindings = obs_data_get_array(hotkeys,
			"ReplayBuffer.Save");
	size_t count = obs_data_array_count(bindings);
	obs_data_array_release(bindings);
	obs_data_release(hotkeys);

	if (!count) {
		QMessageBox::information(this,
				RP_NO_HOTKEY_TITLE,
				RP_NO_HOTKEY_TEXT);
		return;
	}

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_REPLAY_BUFFER_STARTING);

	SaveProject();
	outputHandler->StartReplayBuffer();
}

void OBSBasic::ReplayBufferStopping()
{
	if (!outputHandler || !outputHandler->replayBuffer)
		return;

	replayBufferButton->setText(QTStr("Basic.Main.StoppingReplayBuffer"));

	if (sysTrayReplayBuffer)
		sysTrayReplayBuffer->setText(replayBufferButton->text());

	replayBufferStopping = true;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_REPLAY_BUFFER_STOPPING);
}

void OBSBasic::StopReplayBuffer()
{
	if (!outputHandler || !outputHandler->replayBuffer)
		return;

	SaveProject();

	if (outputHandler->ReplayBufferActive())
		outputHandler->StopReplayBuffer(replayBufferStopping);

	OnDeactivate();
}

void OBSBasic::ReplayBufferStart()
{
	if (!outputHandler || !outputHandler->replayBuffer)
		return;

	replayBufferButton->setText(QTStr("Basic.Main.StopReplayBuffer"));

	if (sysTrayReplayBuffer)
		sysTrayReplayBuffer->setText(replayBufferButton->text());

	replayBufferStopping = false;
	if (api)
		api->on_event(OBS_FRONTEND_EVENT_REPLAY_BUFFER_STARTED);

	OnActivate();

	blog(LOG_INFO, REPLAY_BUFFER_START);
}

void OBSBasic::ReplayBufferStop(int code)
{
	if (!outputHandler || !outputHandler->replayBuffer)
		return;

	replayBufferButton->setText(QTStr("Basic.Main.StartReplayBuffer"));

	if (sysTrayReplayBuffer)
		sysTrayReplayBuffer->setText(replayBufferButton->text());

	blog(LOG_INFO, REPLAY_BUFFER_STOP);

	if (code == OBS_OUTPUT_UNSUPPORTED && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordFail.Title"),
				QTStr("Output.RecordFail.Unsupported"));

	} else if (code == OBS_OUTPUT_NO_SPACE && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordNoSpace.Title"),
				QTStr("Output.RecordNoSpace.Msg"));

	} else if (code != OBS_OUTPUT_SUCCESS && isVisible()) {
		QMessageBox::information(this,
				QTStr("Output.RecordError.Title"),
				QTStr("Output.RecordError.Msg"));

	} else if (code == OBS_OUTPUT_UNSUPPORTED && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordFail.Unsupported"),
			QSystemTrayIcon::Warning);

	} else if (code == OBS_OUTPUT_NO_SPACE && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordNoSpace.Msg"),
			QSystemTrayIcon::Warning);

	} else if (code != OBS_OUTPUT_SUCCESS && !isVisible()) {
		SysTrayNotify(QTStr("Output.RecordError.Msg"),
			QSystemTrayIcon::Warning);
	}

	if (api)
		api->on_event(OBS_FRONTEND_EVENT_REPLAY_BUFFER_STOPPED);

	OnDeactivate();
}

void OBSBasic::on_streamButton_clicked()
{
	if (outputHandler->StreamingActive()) {
		bool confirm = config_get_bool(GetGlobalConfig(), "BasicWindow",
				"WarnBeforeStoppingStream");

		if (confirm && isVisible()) {
			QMessageBox::StandardButton button =
				QMessageBox::question(this,
						QTStr("ConfirmStop.Title"),
						QTStr("ConfirmStop.Text"));

			if (button == QMessageBox::No)
				return;
		}

		StopStreaming();
	} else {
		bool confirm = config_get_bool(GetGlobalConfig(), "BasicWindow",
				"WarnBeforeStartingStream");

		if (confirm && isVisible()) {
			QMessageBox::StandardButton button =
				QMessageBox::question(this,
						QTStr("ConfirmStart.Title"),
						QTStr("ConfirmStart.Text"));

			if (button == QMessageBox::No)
				return;
		}

		StartStreaming();
	}
}

void OBSBasic::on_recordButton_clicked()
{
	if (outputHandler->RecordingActive())
		StopRecording();
	else
		StartRecording();
}

void OBSBasic::on_settingsButton_clicked()
{
	on_action_Settings_triggered();
}

void OBSBasic::on_actionWebsite_triggered()
{
	QUrl url = QUrl("https://obsproject.com", QUrl::TolerantMode);
	QDesktopServices::openUrl(url);
}

void OBSBasic::on_actionShowSettingsFolder_triggered()
{
	char path[512];
	int ret = GetConfigPath(path, 512, "obs-studio");
	if (ret <= 0)
		return;

	QDesktopServices::openUrl(QUrl::fromLocalFile(path));
}

void OBSBasic::on_actionShowProfileFolder_triggered()
{
	char path[512];
	int ret = GetProfilePath(path, 512, "");
	if (ret <= 0)
		return;

	QDesktopServices::openUrl(QUrl::fromLocalFile(path));
}

QListWidgetItem *OBSBasic::GetTopSelectedSourceItem()
{
	QList<QListWidgetItem*> selectedItems = ui->sources->selectedItems();
	QListWidgetItem *topItem = nullptr;
	if (selectedItems.size() != 0)
		topItem = selectedItems[0];
	return topItem;
}

void OBSBasic::on_preview_customContextMenuRequested(const QPoint &pos)
{
	CreateSourcePopupMenu(GetTopSelectedSourceItem(), true);

	UNUSED_PARAMETER(pos);
}

void OBSBasic::on_previewDisabledLabel_customContextMenuRequested(
		const QPoint &pos)
{
	QMenu popup(this);
	QPointer<QMenu> previewProjector;

	QAction *action = popup.addAction(
			QTStr("Basic.Main.PreviewConextMenu.Enable"),
			this, SLOT(TogglePreview()));
	action->setCheckable(true);
	action->setChecked(obs_display_enabled(ui->preview->GetDisplay()));

	previewProjector = new QMenu(QTStr("PreviewProjector"));
	AddProjectorMenuMonitors(previewProjector, this,
			SLOT(OpenPreviewProjector()));

	popup.addMenu(previewProjector);
	popup.exec(QCursor::pos());

	UNUSED_PARAMETER(pos);
}

void OBSBasic::on_actionAlwaysOnTop_triggered()
{
	CloseDialogs();

	/* Make sure all dialogs are safely and successfully closed before
	 * switching the always on top mode due to the fact that windows all
	 * have to be recreated, so queue the actual toggle to happen after
	 * all events related to closing the dialogs have finished */
	QMetaObject::invokeMethod(this, "ToggleAlwaysOnTop",
			Qt::QueuedConnection);
}

void OBSBasic::ToggleAlwaysOnTop()
{
	bool isAlwaysOnTop = IsAlwaysOnTop(this);

	ui->actionAlwaysOnTop->setChecked(!isAlwaysOnTop);
	SetAlwaysOnTop(this, !isAlwaysOnTop);

	show();
}

void OBSBasic::GetFPSCommon(uint32_t &num, uint32_t &den) const
{
	const char *val = config_get_string(basicConfig, "Video", "FPSCommon");

	if (strcmp(val, "10") == 0) {
		num = 10;
		den = 1;
	} else if (strcmp(val, "20") == 0) {
		num = 20;
		den = 1;
	} else if (strcmp(val, "25") == 0) {
		num = 25;
		den = 1;
	} else if (strcmp(val, "29.97") == 0) {
		num = 30000;
		den = 1001;
	} else if (strcmp(val, "48") == 0) {
		num = 48;
		den = 1;
	} else if (strcmp(val, "59.94") == 0) {
		num = 60000;
		den = 1001;
	} else if (strcmp(val, "60") == 0) {
		num = 60;
		den = 1;
	} else {
		num = 30;
		den = 1;
	}
}

void OBSBasic::GetFPSInteger(uint32_t &num, uint32_t &den) const
{
	num = (uint32_t)config_get_uint(basicConfig, "Video", "FPSInt");
	den = 1;
}

void OBSBasic::GetFPSFraction(uint32_t &num, uint32_t &den) const
{
	num = (uint32_t)config_get_uint(basicConfig, "Video", "FPSNum");
	den = (uint32_t)config_get_uint(basicConfig, "Video", "FPSDen");
}

void OBSBasic::GetFPSNanoseconds(uint32_t &num, uint32_t &den) const
{
	num = 1000000000;
	den = (uint32_t)config_get_uint(basicConfig, "Video", "FPSNS");
}

void OBSBasic::GetConfigFPS(uint32_t &num, uint32_t &den) const
{
	uint32_t type = config_get_uint(basicConfig, "Video", "FPSType");

	if (type == 1) //"Integer"
		GetFPSInteger(num, den);
	else if (type == 2) //"Fraction"
		GetFPSFraction(num, den);
	else if (false) //"Nanoseconds", currently not implemented
		GetFPSNanoseconds(num, den);
	else
		GetFPSCommon(num, den);
}

config_t *OBSBasic::Config() const
{
	return basicConfig;
}

void OBSBasic::on_actionEditTransform_triggered()
{
	if (transformWindow)
		transformWindow->close();

	transformWindow = new OBSBasicTransform(this);
	transformWindow->show();
	transformWindow->setAttribute(Qt::WA_DeleteOnClose, true);
}

void OBSBasic::on_actionResetTransform_triggered()
{
	auto func = [] (obs_scene_t *scene, obs_sceneitem_t *item, void *param)
	{
		if (!obs_sceneitem_selected(item))
			return true;

		obs_sceneitem_defer_update_begin(item);

		obs_transform_info info;
		vec2_set(&info.pos, 0.0f, 0.0f);
		vec2_set(&info.scale, 1.0f, 1.0f);
		info.rot = 0.0f;
		info.alignment = OBS_ALIGN_TOP | OBS_ALIGN_LEFT;
		info.bounds_type = OBS_BOUNDS_NONE;
		info.bounds_alignment = OBS_ALIGN_CENTER;
		vec2_set(&info.bounds, 0.0f, 0.0f);
		obs_sceneitem_set_info(item, &info);

		obs_sceneitem_crop crop = {};
		obs_sceneitem_set_crop(item, &crop);

		obs_sceneitem_defer_update_end(item);

		UNUSED_PARAMETER(scene);
		UNUSED_PARAMETER(param);
		return true;
	};

	obs_scene_enum_items(GetCurrentScene(), func, nullptr);
}

static void GetItemBox(obs_sceneitem_t *item, vec3 &tl, vec3 &br)
{
	matrix4 boxTransform;
	obs_sceneitem_get_box_transform(item, &boxTransform);

	vec3_set(&tl, M_INFINITE, M_INFINITE, 0.0f);
	vec3_set(&br, -M_INFINITE, -M_INFINITE, 0.0f);

	auto GetMinPos = [&] (float x, float y)
	{
		vec3 pos;
		vec3_set(&pos, x, y, 0.0f);
		vec3_transform(&pos, &pos, &boxTransform);
		vec3_min(&tl, &tl, &pos);
		vec3_max(&br, &br, &pos);
	};

	GetMinPos(0.0f, 0.0f);
	GetMinPos(1.0f, 0.0f);
	GetMinPos(0.0f, 1.0f);
	GetMinPos(1.0f, 1.0f);
}

static vec3 GetItemTL(obs_sceneitem_t *item)
{
	vec3 tl, br;
	GetItemBox(item, tl, br);
	return tl;
}

static void SetItemTL(obs_sceneitem_t *item, const vec3 &tl)
{
	vec3 newTL;
	vec2 pos;

	obs_sceneitem_get_pos(item, &pos);
	newTL = GetItemTL(item);
	pos.x += tl.x - newTL.x;
	pos.y += tl.y - newTL.y;
	obs_sceneitem_set_pos(item, &pos);
}

static bool RotateSelectedSources(obs_scene_t *scene, obs_sceneitem_t *item,
		void *param)
{
	if (!obs_sceneitem_selected(item))
		return true;

	float rot = *reinterpret_cast<float*>(param);

	vec3 tl = GetItemTL(item);

	rot += obs_sceneitem_get_rot(item);
	if (rot >= 360.0f)       rot -= 360.0f;
	else if (rot <= -360.0f) rot += 360.0f;
	obs_sceneitem_set_rot(item, rot);

	SetItemTL(item, tl);

	UNUSED_PARAMETER(scene);
	UNUSED_PARAMETER(param);
	return true;
};

void OBSBasic::on_actionRotate90CW_triggered()
{
	float f90CW = 90.0f;
	obs_scene_enum_items(GetCurrentScene(), RotateSelectedSources, &f90CW);
}

void OBSBasic::on_actionRotate90CCW_triggered()
{
	float f90CCW = -90.0f;
	obs_scene_enum_items(GetCurrentScene(), RotateSelectedSources, &f90CCW);
}

void OBSBasic::on_actionRotate180_triggered()
{
	float f180 = 180.0f;
	obs_scene_enum_items(GetCurrentScene(), RotateSelectedSources, &f180);
}

static bool MultiplySelectedItemScale(obs_scene_t *scene, obs_sceneitem_t *item,
		void *param)
{
	vec2 &mul = *reinterpret_cast<vec2*>(param);

	if (!obs_sceneitem_selected(item))
		return true;

	vec3 tl = GetItemTL(item);

	vec2 scale;
	obs_sceneitem_get_scale(item, &scale);
	vec2_mul(&scale, &scale, &mul);
	obs_sceneitem_set_scale(item, &scale);

	SetItemTL(item, tl);

	UNUSED_PARAMETER(scene);
	return true;
}

void OBSBasic::on_actionFlipHorizontal_triggered()
{
	vec2 scale;
	vec2_set(&scale, -1.0f, 1.0f);
	obs_scene_enum_items(GetCurrentScene(), MultiplySelectedItemScale,
			&scale);
}

void OBSBasic::on_actionFlipVertical_triggered()
{
	vec2 scale;
	vec2_set(&scale, 1.0f, -1.0f);
	obs_scene_enum_items(GetCurrentScene(), MultiplySelectedItemScale,
			&scale);
}

static bool CenterAlignSelectedItems(obs_scene_t *scene, obs_sceneitem_t *item,
		void *param)
{
	obs_bounds_type boundsType = *reinterpret_cast<obs_bounds_type*>(param);

	if (!obs_sceneitem_selected(item))
		return true;

	obs_video_info ovi;
	obs_get_video_info(&ovi);

	obs_transform_info itemInfo;
	vec2_set(&itemInfo.pos, 0.0f, 0.0f);
	vec2_set(&itemInfo.scale, 1.0f, 1.0f);
	itemInfo.alignment = OBS_ALIGN_LEFT | OBS_ALIGN_TOP;
	itemInfo.rot = 0.0f;

	vec2_set(&itemInfo.bounds,
			float(ovi.base_width), float(ovi.base_height));
	itemInfo.bounds_type = boundsType;
	itemInfo.bounds_alignment = OBS_ALIGN_CENTER;

	obs_sceneitem_set_info(item, &itemInfo);

	UNUSED_PARAMETER(scene);
	return true;
}

void OBSBasic::on_actionFitToScreen_triggered()
{
	obs_bounds_type boundsType = OBS_BOUNDS_SCALE_INNER;
	obs_scene_enum_items(GetCurrentScene(), CenterAlignSelectedItems,
			&boundsType);
}

void OBSBasic::on_actionStretchToScreen_triggered()
{
	obs_bounds_type boundsType = OBS_BOUNDS_STRETCH;
	obs_scene_enum_items(GetCurrentScene(), CenterAlignSelectedItems,
			&boundsType);
}

void OBSBasic::on_actionCenterToScreen_triggered()
{
	auto func = [] (obs_scene_t *scene, obs_sceneitem_t *item, void *param)
	{
		vec3 tl, br, itemCenter, screenCenter, offset;
		obs_video_info ovi;

		if (!obs_sceneitem_selected(item))
			return true;

		obs_get_video_info(&ovi);

		vec3_set(&screenCenter, float(ovi.base_width),
				float(ovi.base_height), 0.0f);
		vec3_mulf(&screenCenter, &screenCenter, 0.5f);

		GetItemBox(item, tl, br);

		vec3_sub(&itemCenter, &br, &tl);
		vec3_mulf(&itemCenter, &itemCenter, 0.5f);
		vec3_add(&itemCenter, &itemCenter, &tl);

		vec3_sub(&offset, &screenCenter, &itemCenter);
		vec3_add(&tl, &tl, &offset);

		SetItemTL(item, tl);

		UNUSED_PARAMETER(scene);
		UNUSED_PARAMETER(param);
		return true;
	};

	obs_scene_enum_items(GetCurrentScene(), func, nullptr);
}

void OBSBasic::EnablePreviewDisplay(bool enable)
{
	obs_display_set_enabled(ui->preview->GetDisplay(), enable);
	ui->preview->setVisible(enable);
	ui->previewDisabledLabel->setVisible(!enable);
}

void OBSBasic::TogglePreview()
{
	previewEnabled = !previewEnabled;
	EnablePreviewDisplay(previewEnabled);
}

void OBSBasic::Nudge(int dist, MoveDir dir)
{
	if (ui->preview->Locked())
		return;

	struct MoveInfo {
		float dist;
		MoveDir dir;
	} info = {(float)dist, dir};

	auto func = [] (obs_scene_t*, obs_sceneitem_t *item, void *param)
	{
		MoveInfo *info = reinterpret_cast<MoveInfo*>(param);
		struct vec2 dir;
		struct vec2 pos;

		vec2_set(&dir, 0.0f, 0.0f);

		if (!obs_sceneitem_selected(item))
			return true;

		switch (info->dir) {
		case MoveDir::Up:    dir.y = -info->dist; break;
		case MoveDir::Down:  dir.y =  info->dist; break;
		case MoveDir::Left:  dir.x = -info->dist; break;
		case MoveDir::Right: dir.x =  info->dist; break;
		}

		obs_sceneitem_get_pos(item, &pos);
		vec2_add(&pos, &pos, &dir);
		obs_sceneitem_set_pos(item, &pos);
		return true;
	};

	obs_scene_enum_items(GetCurrentScene(), func, &info);
}

void OBSBasic::NudgeUp()       {Nudge(1,  MoveDir::Up);}
void OBSBasic::NudgeDown()     {Nudge(1,  MoveDir::Down);}
void OBSBasic::NudgeLeft()     {Nudge(1,  MoveDir::Left);}
void OBSBasic::NudgeRight()    {Nudge(1,  MoveDir::Right);}

void OBSBasic::OpenProjector(obs_source_t *source, int monitor)
{
	/* seriously?  10 monitors? */
	if (monitor > 9)
		return;

	delete projectors[monitor];
	projectors[monitor].clear();

	OBSProjector *projector = new OBSProjector(nullptr, source);
	projector->Init(monitor);

	projectors[monitor] = projector;
}

void OBSBasic::OpenPreviewProjector()
{
	int monitor = sender()->property("monitor").toInt();
	OpenProjector(nullptr, monitor);
}

void OBSBasic::OpenSourceProjector()
{
	int monitor = sender()->property("monitor").toInt();
	OBSSceneItem item = GetCurrentSceneItem();
	if (!item)
		return;

	OpenProjector(obs_sceneitem_get_source(item), monitor);
}

void OBSBasic::OpenSceneProjector()
{
	int monitor = sender()->property("monitor").toInt();
	OBSScene scene = GetCurrentScene();
	if (!scene)
		return;

	OpenProjector(obs_scene_get_source(scene), monitor);
}

void OBSBasic::UpdateTitleBar()
{
	stringstream name;

	const char *profile = config_get_string(App()->GlobalConfig(),
			"Basic", "Profile");
	const char *sceneCollection = config_get_string(App()->GlobalConfig(),
			"Basic", "SceneCollection");

	name << "OBS ";
	if (previewProgramMode)
		name << "Studio ";

	name << App()->GetVersionString();
	if (App()->IsPortableMode())
		name << " - Portable Mode";

	name << " - " << Str("TitleBar.Profile") << ": " << profile;
	name << " - " << Str("TitleBar.Scenes") << ": " << sceneCollection;

	setWindowTitle(QT_UTF8(name.str().c_str()));
}

int OBSBasic::GetProfilePath(char *path, size_t size, const char *file) const
{
	char profiles_path[512];
	const char *profile = config_get_string(App()->GlobalConfig(),
			"Basic", "ProfileDir");
	int ret;

	if (!profile)
		return -1;
	if (!path)
		return -1;
	if (!file)
		file = "";

	ret = GetConfigPath(profiles_path, 512, "obs-studio/basic/profiles");
	if (ret <= 0)
		return ret;

	if (!*file)
		return snprintf(path, size, "%s/%s", profiles_path, profile);

	return snprintf(path, size, "%s/%s/%s", profiles_path, profile, file);
}

void OBSBasic::on_toggleSceneTransitions_toggled(bool visible)
{
	ui->sceneTransitionsLabel->setVisible(visible);
	ui->transitionsContainer->setVisible(visible);

	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"ShowTransitions", visible);
}

void OBSBasic::on_toggleListboxToolbars_toggled(bool visible)
{
	ui->sourcesToolbar->setVisible(visible);
	ui->scenesToolbar->setVisible(visible);

	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"ShowListboxToolbars", visible);
}

void OBSBasic::on_toggleStatusBar_toggled(bool visible)
{
	ui->statusbar->setVisible(visible);

	config_set_bool(App()->GlobalConfig(), "BasicWindow",
			"ShowStatusBar", visible);
}

void OBSBasic::on_actionLockPreview_triggered()
{
	ui->preview->ToggleLocked();
	ui->actionLockPreview->setChecked(ui->preview->Locked());
}

void OBSBasic::on_scalingMenu_aboutToShow()
{
	obs_video_info ovi;
	obs_get_video_info(&ovi);

	QAction *action = ui->actionScaleCanvas;
	QString text = QTStr("Basic.MainMenu.Edit.Scale.Canvas");
	text = text.arg(QString::number(ovi.base_width),
			QString::number(ovi.base_height));
	action->setText(text);

	action = ui->actionScaleOutput;
	text = QTStr("Basic.MainMenu.Edit.Scale.Output");
	text = text.arg(QString::number(ovi.output_width),
			QString::number(ovi.output_height));
	action->setText(text);

	UpdatePreviewScalingMenu();
}

void OBSBasic::on_actionScaleWindow_triggered()
{
	ui->preview->SetScaling(ScalingMode::Window);
	ui->preview->ResetScrollingOffset();
	emit ui->preview->DisplayResized();
}

void OBSBasic::on_actionScaleCanvas_triggered()
{
	ui->preview->SetScaling(ScalingMode::Canvas);
	emit ui->preview->DisplayResized();
}

void OBSBasic::on_actionScaleOutput_triggered()
{
	ui->preview->SetScaling(ScalingMode::Output);
	emit ui->preview->DisplayResized();
}

void OBSBasic::SetShowing(bool showing)
{
	if (!showing && isVisible()) {
		config_set_string(App()->GlobalConfig(),
			"BasicWindow", "geometry",
			saveGeometry().toBase64().constData());

		if (showHide)
			showHide->setText(QTStr("Basic.SystemTray.Show"));
		QTimer::singleShot(250, this, SLOT(hide()));

		if (previewEnabled)
			EnablePreviewDisplay(false);

		setVisible(false);

	} else if (showing && !isVisible()) {
		if (showHide)
			showHide->setText(QTStr("Basic.SystemTray.Hide"));
		QTimer::singleShot(250, this, SLOT(show()));

		if (previewEnabled)
			EnablePreviewDisplay(true);

		setVisible(true);
	}
}

void OBSBasic::SystemTrayInit()
{
	trayIcon = new QSystemTrayIcon(QIcon(":/res/images/obs.png"),
			this);
	trayIcon->setToolTip("OBS Studio");

	showHide = new QAction(QTStr("Basic.SystemTray.Show"),
			trayIcon);
	sysTrayStream = new QAction(QTStr("Basic.Main.StartStreaming"),
			trayIcon);
	sysTrayRecord = new QAction(QTStr("Basic.Main.StartRecording"),
			trayIcon);
	sysTrayReplayBuffer = new QAction(QTStr("Basic.Main.StartReplayBuffer"),
			trayIcon);
	exit = new QAction(QTStr("Exit"),
			trayIcon);

	if (outputHandler && !outputHandler->replayBuffer)
		sysTrayReplayBuffer->setEnabled(false);

	connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
			this,
			SLOT(IconActivated(QSystemTrayIcon::ActivationReason)));
	connect(showHide, SIGNAL(triggered()),
			this, SLOT(ToggleShowHide()));
	connect(sysTrayStream, SIGNAL(triggered()),
			this, SLOT(on_streamButton_clicked()));
	connect(sysTrayRecord, SIGNAL(triggered()),
			this, SLOT(on_recordButton_clicked()));
	connect(sysTrayReplayBuffer, &QAction::triggered,
			this, &OBSBasic::ReplayBufferClicked);
	connect(exit, SIGNAL(triggered()),
			this, SLOT(close()));

	trayMenu = new QMenu;
	trayMenu->addAction(showHide);
	trayMenu->addAction(sysTrayStream);
	trayMenu->addAction(sysTrayRecord);
	trayMenu->addAction(sysTrayReplayBuffer);
	trayMenu->addAction(exit);
	trayIcon->setContextMenu(trayMenu);
}

void OBSBasic::IconActivated(QSystemTrayIcon::ActivationReason reason)
{
	if (reason == QSystemTrayIcon::Trigger)
		ToggleShowHide();
}

void OBSBasic::SysTrayNotify(const QString &text,
		QSystemTrayIcon::MessageIcon n)
{
	if (QSystemTrayIcon::supportsMessages()) {
		QSystemTrayIcon::MessageIcon icon =
				QSystemTrayIcon::MessageIcon(n);
		trayIcon->showMessage("OBS Studio", text, icon, 10000);
	}
}

void OBSBasic::SystemTray(bool firstStarted)
{
	if (!QSystemTrayIcon::isSystemTrayAvailable())
		return;

	bool sysTrayWhenStarted = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "SysTrayWhenStarted");
	bool sysTrayEnabled = config_get_bool(GetGlobalConfig(),
			"BasicWindow", "SysTrayEnabled");

	if (firstStarted)
		SystemTrayInit();

	if (!sysTrayWhenStarted && !sysTrayEnabled) {
		trayIcon->hide();
	} else if (sysTrayWhenStarted && sysTrayEnabled) {
		trayIcon->show();
		if (firstStarted) {
			QTimer::singleShot(50, this, SLOT(hide()));
			EnablePreviewDisplay(false);
			setVisible(false);
		}
	} else if (sysTrayEnabled) {
		trayIcon->show();
	} else if (!sysTrayEnabled) {
		trayIcon->hide();
	} else if (!sysTrayWhenStarted && sysTrayEnabled) {
		trayIcon->hide();
	}

	if (isVisible())
		showHide->setText(QTStr("Basic.SystemTray.Hide"));
	else
		showHide->setText(QTStr("Basic.SystemTray.Show"));
}