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; }