winscp/source/forms/Glyphs.cpp

//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "Global.h"
#include "Glyphs.h"
#include "Glyphs120.h"
#include "Glyphs144.h"
#include "Glyphs192.h"
#include "GUITools.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "PngImageList"
#ifndef NO_RESOURCES
#pragma resource "*.dfm"
#endif
//---------------------------------------------------------------------------
TGlyphsModule * GlyphsModule;
//---------------------------------------------------------------------------
__fastcall TGlyphsModule::TGlyphsModule(TComponent* Owner)
  : TDataModule(Owner)
{
  FPixelsPerInch = USER_DEFAULT_SCREEN_DPI;
  SetPixelsPerInch(Screen->PixelsPerInch);
}
//---------------------------------------------------------------------------
// Contructor without scaling
__fastcall TGlyphsModule::TGlyphsModule()
  : TDataModule(Application)
{
}
//---------------------------------------------------------------------------
void __fastcall TGlyphsModule::SetPixelsPerInch(int PixelsPerInch)
{
  PixelsPerInch = NormalizePixelsPerInch(PixelsPerInch);
  if (FPixelsPerInch != PixelsPerInch)
  {
    std::unique_ptr<TDataModule> ScaledModule;
    if (PixelsPerInch >= 192)
    {
      ScaledModule.reset(new TGlyphs192Module(Application));
    }
    else if (PixelsPerInch >= 144)
    {
      ScaledModule.reset(new TGlyphs144Module(Application));
    }
    else if (PixelsPerInch >= 120)
    {
      ScaledModule.reset(new TGlyphs120Module(Application));
    }
    else
    {
      // Do not have a separate 96 DPI module, as this module needs to
      // have the images loaded as they are used on design time.
      // Performance impact of loading 96 DPI images when they are not needed is not that big.
      ScaledModule.reset(new TGlyphsModule());
    }

    if (ScaledModule.get() != NULL)
    {
      for (int Index = 0; Index < ComponentCount; Index++)
      {
        TComponent * TargetComponent = Components[Index];
        TComponent * SourceComponent = ScaledModule->FindComponent(TargetComponent->Name);
        if (DebugAlwaysTrue(SourceComponent != NULL))
        {
          TargetComponent->Assign(SourceComponent);
        }
      }
    }

    FPixelsPerInch = PixelsPerInch;
  }
}