C++ (Cpp) Rect::Clip示例

void Painter32::FillRect(Rect rect, Uint32 color) {
	Rect clipped_rect = rect.Clip(bounds);

	Uint8 *start = (Uint8 *)_video_aquire_buffer(screen)
		 + (clipped_rect.y * screen->pitch) + (clipped_rect.x * 4);

	Uint8 r = (Uint8)((color & 0xff0000) >> 16);
	Uint8 g = (Uint8)((color & 0x00ff00) >> 8);
	Uint8 b = (Uint8)(color & 0x0000ff);

	for ( Uint32 y = 0; y < clipped_rect.height; ++y ) {
		Uint8 *dest = start;
		for ( Uint32 x = 0; x < clipped_rect.width; ++x ) {
			dest[0] = b;
			dest[1] = g;
			dest[2] = r;
			dest[3] = 0xff;

			dest += 4;
		}

		start = (Uint8 *)((Uint32)start + screen->pitch);
	}

	_video_release_buffer(screen);
}

示例#2

显示文件

文件： window.cpp 项目： drodin/Crimson

void Window::VideoModeChange( void ) {
  Rect pos = *this;

  pos.Align( *view );
  pos.Clip( *view );
  if ( flags & WIN_CENTER ) pos.Center( *view );

  if ( (pos.w != w) || (pos.h != h) ) {
    SetSize( pos.x, pos.y, pos.w, pos.h );
    Draw();
  } else {
    x = pos.x;
    y = pos.y;
  }
}