editor: guess the image title from image path when inserting an image

src/dialog/vinsertimagedialog.cpp

@@ -31,6 +31,8 @@ VInsertImageDialog::VInsertImageDialog(const QString &p_title,
         fetchImageFromClipboard();
     }
 
+    autoCompleteTitleFromPath();
+
     handleInputChanged();
 }
 
@@ -178,6 +180,8 @@ void VInsertImageDialog::handleBrowseBtnClicked()
 
     setPath(filePath);
 
+    autoCompleteTitleFromPath();
+
     m_imageTitleEdit->setFocus();
 }
 
@@ -341,3 +345,18 @@ int VInsertImageDialog::getOverridenWidth() const
 
     return 0;
 }
+
+void VInsertImageDialog::autoCompleteTitleFromPath()
+{
+    if (!m_imageTitleEdit->text().isEmpty()) {
+        return;
+    }
+
+    QString imgPath = m_pathEdit->text();
+    if (imgPath.isEmpty()) {
+        return;
+    }
+
+    m_imageTitleEdit->setText(QFileInfo(imgPath).baseName());
+    m_imageTitleEdit->selectAll();
+}

src/dialog/vinsertimagedialog.h

@@ -67,6 +67,8 @@ private:
 
     void setImageControlsVisible(bool p_visible);
 
+    void autoCompleteTitleFromPath();
+
     VMetaWordLineEdit *m_imageTitleEdit;
     VLineEdit *m_pathEdit;
     QPushButton *browseBtn;

src/utils/vutils.cpp

@@ -1580,7 +1580,12 @@ QStringList VUtils::parseCombinedArgString(const QString &p_program)
 
 QImage VUtils::imageFromFile(const QString &p_filePath)
 {
-    QImage img;
+    QImage img(p_filePath);
+    if (!img.isNull()) {
+        return img;
+    }
+
+    // @p_filePath may has a wrong suffix which indicates a wrong image format.
     QFile file(p_filePath);
     if (!file.open(QIODevice::ReadOnly)) {
         qWarning() << "fail to open image file" << p_filePath;

src/vmdeditoperations.cpp

@@ -158,7 +158,7 @@ void VMdEditOperations::insertImageFromPath(const QString &p_title,
     p_urlInLink.clear();
 
     // Make sure src image is valid.
-    if (QImage(p_srcImagePath).isNull()) {
+    if (VUtils::imageFromFile(p_srcImagePath).isNull()) {
         qWarning() << "fail to insert invalid source image" << p_srcImagePath;
         return;
     }