win32 icon helpers

2004-09-20 01:14:26 +00:00
parent 6b305bba8b
commit 3dc77f6493
2 changed files with 165 additions and 0 deletions
@@ -0,0 +1,129 @@
+#include "global.h"
+#include "archutils/Win32/WindowIcon.h"
+#include "RageLog.h"
+#include "RageUtil.h"
+#include "RageSurface.h"
+#include "RageSurfaceUtils.h"
+#include "RageSurface_Load.h"
+
+#include <wingdi.h>
+
+HICON IconFromSurface( const RageSurface *pSrcImg )
+{
+	RageSurface *pImg;
+
+	{
+		/* Round the width up to a multiple of 8, convert to 32-bit BGR, and reduce
+		 * to one-bit alpha. */
+		int iWidth = pSrcImg->w;
+		iWidth = (iWidth+7) & ~7;
+
+		pImg = CreateSurface( iWidth, pSrcImg->h, 32,
+			0x00FF0000,
+			0x0000FF00,
+			0x000000FF,
+			0x80000000 );
+		RageSurfaceUtils::Blit( pSrcImg, pImg );
+	}
+
+	RageSurfaceUtils::FlipVertically( pImg );
+
+	int iSize = sizeof(BITMAPINFOHEADER);
+	int iSizeImage = 0;
+	iSizeImage += pImg->h * pImg->pitch; /* image */
+	iSizeImage += (pImg->h * pImg->w) / 8; /* mask */
+
+	BITMAPINFOHEADER *pBitmap = (BITMAPINFOHEADER *) malloc( iSize + iSizeImage );
+	memset( pBitmap, 0, iSize + iSizeImage );
+
+	pBitmap->biSize  = sizeof(BITMAPINFOHEADER);
+	pBitmap->biWidth = pImg->w;
+	pBitmap->biHeight = pImg->h * 2;
+	pBitmap->biPlanes = 1;
+	pBitmap->biBitCount = 32;
+	pBitmap->biCompression = BI_RGB;
+	pBitmap->biSizeImage = pImg->h * pImg->pitch;
+
+	uint8_t *pImage = ((uint8_t *) pBitmap) + iSize;
+	uint8_t *pMask = pImage + pImg->h * pImg->pitch;
+
+	memcpy( pImage, pImg->pixels, pImg->h * pImg->pitch );
+
+	int iMaskPitch = pImg->w/8;
+	for( int y = 0; y < pImg->h; ++y )
+	{
+		int bit = 0x80;
+		uint32_t *pRow = (uint32_t *) (pImage + y*pImg->pitch);
+		uint8_t *pMaskRow = pMask + y*iMaskPitch;
+		for( int x = 0; x < pImg->w; ++x )
+		{
+			if( !(pRow[x] & pImg->fmt.Mask[3]) )
+			{
+				/* Transparent; set this mask bit. */
+				*pMaskRow |= bit;
+				pRow[x] = 0;
+			}
+
+			bit >>= 1;
+			if( bit == 0 )
+			{
+				bit = 0x80;
+				++pMaskRow;
+			}
+		}
+	}
+
+	HICON icon = CreateIconFromResourceEx( (BYTE *) pBitmap, iSize + iSizeImage, TRUE, 0x00030000, pImg->w, pImg->h, LR_DEFAULTCOLOR );
+
+	delete pImg;
+	pImg = NULL;
+	free( pBitmap );
+
+	if( icon == NULL )
+	{
+		LOG->Trace( "%s", werr_ssprintf( GetLastError(), "CreateIconFromResourceEx" ).c_str() );
+		return NULL;
+	}
+
+	return icon;
+}
+
+HICON IconFromFile( const CString &sIconFile )
+{
+	CString sError;
+	RageSurface *pImg = RageSurfaceUtils::LoadFile( sIconFile, sError );
+	if( pImg == NULL )
+	{
+		LOG->Warn( "Couldn't open icon \"%s\": %s", sIconFile.c_str(), sError.c_str() );
+		return NULL;
+	}
+
+	HICON icon = IconFromSurface( pImg );
+	delete pImg;
+	return icon;
+}
+
+/*
+ * (c) 2004 Glenn Maynard
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */