static LICE_IBitmap *icoToBitmap(HICON icon, LICE_IBitmap *bmpOut)
{
int icon_w = 16, icon_h=16;
#ifdef _WIN32
ICONINFO ii={0,};
if (GetIconInfo(icon,&ii))
{
bool blah=false;
if (ii.hbmColor)
{
BITMAP bm={0,};
if (GetObject(ii.hbmColor,sizeof(bm),&bm) && bm.bmWidth && bm.bmHeight)
{
icon_w=bm.bmWidth;
icon_h=bm.bmHeight;
blah=true;
}
DeleteObject(ii.hbmColor);
}
if (ii.hbmMask)
{
BITMAP bm={0,};
if (!blah && GetObject(ii.hbmMask,sizeof(bm),&bm) && bm.bmWidth && bm.bmHeight)
{
icon_w=bm.bmWidth;
icon_h=bm.bmHeight;
}
DeleteObject(ii.hbmMask);
}
}
#else
BITMAP bm={0,};
if (GetObject(icon,sizeof(bm),&bm) && bm.bmWidth && bm.bmHeight) // SWELL's GetObject() works on icons
{
icon_w=bm.bmWidth;
icon_h=bm.bmHeight;
}
#endif
LICE_SysBitmap tempbm(icon_w*2,icon_h);
LICE_FillRect(&tempbm,0,0,icon_w,icon_h,LICE_RGBA(0,0,0,255),1.0f,LICE_BLIT_MODE_COPY);
#ifdef _WIN32
DrawIconEx(tempbm.getDC(),0,0,icon,icon_w,icon_h,0,NULL,DI_NORMAL);
#else
{
RECT r={0,0,icon_w,icon_h};
DrawImageInRect(tempbm.getDC(),icon,&r);
}
#endif
LICE_FillRect(&tempbm,icon_w,0,icon_w,icon_h,LICE_RGBA(255,255,255,255),1.0f,LICE_BLIT_MODE_COPY);
#ifdef _WIN32
DrawIconEx(tempbm.getDC(),icon_w,0,icon,icon_w,icon_h,0,NULL,DI_NORMAL);
#else
{
RECT r={icon_w,0,icon_w+icon_w,icon_h};
DrawImageInRect(tempbm.getDC(),icon,&r);
}
#endif
if (!bmpOut) bmpOut = new LICE_MemBitmap(icon_w,icon_h);
else bmpOut->resize(icon_w,icon_h);
int y; // since we have the image drawn on white and on black, we can calculate the alpha channel...
for(y=0;y<icon_h;y++)
{
int x;
for(x=0;x<icon_w;x++)
{
LICE_pixel p = LICE_GetPixel(&tempbm,x,y);
LICE_pixel p2 = LICE_GetPixel(&tempbm,x+icon_w,y);
int r1=LICE_GETR(p);
int g1=LICE_GETG(p);
int b1=LICE_GETB(p);
int alpha=255 - (LICE_GETR(p2)-r1);
if (alpha>=255) alpha=255;
else if (alpha>0)
{
r1 = (r1*255)/alpha; // LICE stores its alpha channel non-premultiplied, so we need to scale these up.
g1 = (g1*255)/alpha;
b1 = (b1*255)/alpha;
if (r1>255)r1=255;
if (g1>255)g1=255;
if (b1>255)b1=255;
}
else alpha=0;
LICE_PutPixel(bmpOut,x,y,LICE_RGBA(r1,g1,b1,alpha),1.0f,LICE_BLIT_MODE_COPY);
}
}
return bmpOut;
}
static LICE_IBitmap *hbmToBit(HBITMAP hbm, LICE_IBitmap *bmp)
{
BITMAP bm;
GetObject(hbm, sizeof(BITMAP), (LPSTR)&bm);
LICE_SysBitmap sysbitmap(bm.bmWidth,bm.bmHeight);
#ifdef _WIN32
HDC hdc=CreateCompatibleDC(NULL);
HGDIOBJ oldBM=SelectObject(hdc,hbm);
BitBlt(sysbitmap.getDC(),0,0,bm.bmWidth,bm.bmHeight,hdc,0,0,SRCCOPY);
GdiFlush();
if (!bmp) bmp=new LICE_MemBitmap(bm.bmWidth,bm.bmHeight);
LICE_Copy(bmp,&sysbitmap);
SelectObject(hdc,oldBM);
DeleteDC(hdc);
#else
LICE_Clear(&sysbitmap,0);
RECT r={0,0,bm.bmWidth,bm.bmHeight};
DrawImageInRect(sysbitmap.getDC(),hbm,&r);
if (!bmp) bmp=new LICE_MemBitmap(bm.bmWidth,bm.bmHeight);
LICE_Copy(bmp,&sysbitmap);
#endif
LICE_FillRect(bmp,0,0,bmp->getWidth(),bmp->getHeight(),LICE_RGBA(0,0,0,255),1.0f,LICE_BLIT_MODE_ADD);
return bmp;
}