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);
}
}
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);
}
}
