예제 #1
0
void
TabDisplay::PaintButton(Canvas &canvas, unsigned CaptionStyle,
                        const TCHAR *caption, const PixelRect &rc,
                        const Bitmap *bmp, const bool isDown, bool inverse)
{
  PixelRect rcTextFinal = rc;
  const UPixelScalar buttonheight = rc.bottom - rc.top;
  const PixelSize text_size = canvas.CalcTextSize(caption);
  const int textwidth = text_size.cx;
  const int textheight = text_size.cy;
  UPixelScalar textheightoffset = 0;

  if (textwidth > (rc.right - rc.left)) // assume 2 lines
    textheightoffset = std::max(0, (int)(buttonheight - textheight * 2) / 2);
  else
    textheightoffset = std::max(0, (int)(buttonheight - textheight) / 2);

  rcTextFinal.top += textheightoffset;

  canvas.DrawFilledRectangle(rc, canvas.GetBackgroundColor());

  if (bmp != NULL) {
    const PixelSize bitmap_size = bmp->GetSize();
    const int offsetx = (rc.right - rc.left - bitmap_size.cx / 2) / 2;
    const int offsety = (rc.bottom - rc.top - bitmap_size.cy) / 2;

    if (inverse) // black background
      canvas.CopyNotOr(rc.left + offsetx,
                       rc.top + offsety,
                       bitmap_size.cx / 2,
                       bitmap_size.cy,
                       *bmp,
                       bitmap_size.cx / 2, 0);

    else
      canvas.CopyAnd(rc.left + offsetx,
                      rc.top + offsety,
                      bitmap_size.cx / 2,
                      bitmap_size.cy,
                      *bmp,
                      bitmap_size.cx / 2, 0);

  } else {
#ifndef USE_GDI
    if (IsDithered())
      CaptionStyle |= DT_UNDERLINE;
#endif

    canvas.DrawFormattedText(&rcTextFinal, caption, CaptionStyle);
  }
}
예제 #2
0
void
TabDisplay::PaintButton(Canvas &canvas, unsigned CaptionStyle,
                        const TCHAR *caption, const PixelRect &rc,
                        const Bitmap *bmp, const bool isDown, bool inverse)
{
  PixelRect rcTextFinal = rc;
  const UPixelScalar buttonheight = rc.bottom - rc.top;
  const PixelSize text_size = canvas.CalcTextSize(caption);
  const int textwidth = text_size.cx;
  const int textheight = text_size.cy;
  UPixelScalar textheightoffset = 0;

  if (textwidth > (rc.right - rc.left)) // assume 2 lines
    textheightoffset = std::max(0, (int)(buttonheight - textheight * 2) / 2);
  else
    textheightoffset = std::max(0, (int)(buttonheight - textheight) / 2);

  rcTextFinal.top += textheightoffset;

  canvas.DrawFilledRectangle(rc, canvas.GetBackgroundColor());

  if (bmp != nullptr) {
    const PixelSize bitmap_size = bmp->GetSize();
    const int offsetx = (rc.right - rc.left - bitmap_size.cx / 2) / 2;
    const int offsety = (rc.bottom - rc.top - bitmap_size.cy) / 2;

#ifdef ENABLE_OPENGL

    if (inverse) {
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);

      /* invert the texture color */
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_TEXTURE);
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_ONE_MINUS_SRC_COLOR);

      /* copy the texture alpha */
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_TEXTURE);
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
    } else
      /* simple copy */
      OpenGL::glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

    const GLEnable scope(GL_TEXTURE_2D);
    const GLBlend blend(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    GLTexture &texture = *bmp->GetNative();
    texture.Bind();
    texture.Draw(rc.left + offsetx, rc.top + offsety);

#else
    if (inverse) // black background
      canvas.CopyNotOr(rc.left + offsetx,
                       rc.top + offsety,
                       bitmap_size.cx / 2,
                       bitmap_size.cy,
                       *bmp,
                       bitmap_size.cx / 2, 0);

    else
      canvas.CopyAnd(rc.left + offsetx,
                      rc.top + offsety,
                      bitmap_size.cx / 2,
                      bitmap_size.cy,
                      *bmp,
                      bitmap_size.cx / 2, 0);
#endif

  } else {
#ifndef USE_GDI
    if (IsDithered())
      CaptionStyle |= DT_UNDERLINE;
#endif

    canvas.DrawFormattedText(&rcTextFinal, caption, CaptionStyle);
  }
}