src/external/3rd/application/UiBuilder/UIDirectDrawPrimaryCanvas.cpp

   1 #include "FirstUiBuilder.h"
   2 #include "UIDirectDrawPrimaryCanvas.h"
   3
   4 UIDirectDrawPrimaryCanvas::UIDirectDrawPrimaryCanvas( const UISize &Size, HWND NewWindow ) : UIDirectDrawCanvas( Size )
   5 {
   6         mWindow = NewWindow;
   7 }
   8
   9 UIDirectDrawPrimaryCanvas::~UIDirectDrawPrimaryCanvas()
  10 {
  11 }
  12
  13 bool UIDirectDrawPrimaryCanvas::IsA( const UITypeID Type ) const
  14 {
  15         return (Type == TUIDirectDrawPrimaryCanvas) || UIDirectDrawCanvas::IsA( Type );
  16 }
  17
  18 bool UIDirectDrawPrimaryCanvas::Generate( void ) const
  19 {
  20         if( !mSurface )
  21         {
  22                 LPDIRECTDRAWSURFACE7 CreatedSurface;
  23                 LPDIRECTDRAWCLIPPER      SurfaceClipper;
  24                 DDSURFACEDESC2                   ddsd = { sizeof( ddsd ) };
  25                 HRESULT                                                  hr;
  26
  27                 ddsd.dwFlags                            = DDSD_CAPS;
  28                 ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
  29
  30                 hr = gDirectDraw->CreateSurface( &ddsd, &CreatedSurface, 0 );
  31
  32                 if( FAILED( hr ) )
  33                         return false;
  34
  35                 hr = gDirectDraw->CreateClipper( 0, &SurfaceClipper, 0 );
  36
  37                 if( FAILED( hr ) )
  38                 {
  39                         assert( false );
  40
  41                         CreatedSurface->Release();
  42                         return false;
  43                 }
  44
  45                 hr = SurfaceClipper->SetHWnd( 0, mWindow );
  46
  47                 if( FAILED( hr ) )
  48                 {
  49                         assert( false );
  50
  51                         SurfaceClipper->Release();
  52                         CreatedSurface->Release();
  53                         return false;
  54                 }
  55
  56                 hr = CreatedSurface->SetClipper( SurfaceClipper );
  57
  58                 if( FAILED( hr ) )
  59                 {
  60                         assert( false );
  61
  62                         SurfaceClipper->Release();
  63                         CreatedSurface->Release();
  64                         return false;
  65                 }
  66
  67                 SurfaceClipper->Release();
  68
  69                 const_cast<UIDirectDrawPrimaryCanvas *>( this )->SetSurface( CreatedSurface );
  70         }
  71         else if( mSurface->IsLost() )
  72         {
  73                 if( FAILED( mSurface->Restore() ) )
  74                         return false;
  75         }
  76         return true;
  77 }