462 lines
14 KiB
C
462 lines
14 KiB
C
/*
|
|
* Cursor and icon support
|
|
*
|
|
* Copyright 1995 Alexandre Julliard
|
|
* Copyright 1996 Martin von Loewis
|
|
*/
|
|
|
|
/*
|
|
* Theory:
|
|
*
|
|
* Cursors and icons are stored in a global heap block, with the
|
|
* following layout:
|
|
*
|
|
* CURSORICONINFO info;
|
|
* BYTE[] ANDbits;
|
|
* BYTE[] XORbits;
|
|
*
|
|
* The bits structures are in the format of a device-dependent bitmap.
|
|
*
|
|
* This layout is very sub-optimal, as the bitmap bits are stored in
|
|
* the X client instead of in the server like other bitmaps; however,
|
|
* some programs (notably Paint Brush) expect to be able to manipulate
|
|
* the bits directly :-(
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "windows.h"
|
|
#include "bitmap.h"
|
|
#include "callback.h"
|
|
#include "cursoricon.h"
|
|
#include "sysmetrics.h"
|
|
#include "win.h"
|
|
#include "struct32.h"
|
|
#include "string32.h"
|
|
#include "resource32.h"
|
|
#include "stddebug.h"
|
|
#include "debug.h"
|
|
#include "xmalloc.h"
|
|
#include "task.h"
|
|
|
|
|
|
/**********************************************************************
|
|
* CURSORICON32_FindBestIcon
|
|
*
|
|
* Find the icon closest to the requested size and number of colors.
|
|
*/
|
|
static ICONDIRENTRY32 *CURSORICON32_FindBestIcon( CURSORICONDIR32 *dir,
|
|
int width, int height, int colors )
|
|
{
|
|
int i, maxcolors, maxwidth, maxheight;
|
|
ICONDIRENTRY32 *entry, *bestEntry = NULL;
|
|
|
|
if (dir->idCount < 1)
|
|
{
|
|
fprintf( stderr, "Icon: empty directory!\n" );
|
|
return NULL;
|
|
}
|
|
if (dir->idCount == 1) return &dir->idEntries[0].icon; /* No choice... */
|
|
|
|
/* First find the exact size with less colors */
|
|
|
|
maxcolors = 0;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth == width) && (entry->bHeight == height) &&
|
|
(entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* First find the exact size with more colors */
|
|
|
|
maxcolors = 255;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth == width) && (entry->bHeight == height) &&
|
|
(entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* Now find a smaller one with less colors */
|
|
|
|
maxcolors = maxwidth = maxheight = 0;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth <= width) && (entry->bHeight <= height) &&
|
|
(entry->bWidth >= maxwidth) && (entry->bHeight >= maxheight) &&
|
|
(entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->bWidth;
|
|
maxheight = entry->bHeight;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* Now find a smaller one with more colors */
|
|
|
|
maxcolors = 255;
|
|
maxwidth = maxheight = 0;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth <= width) && (entry->bHeight <= height) &&
|
|
(entry->bWidth >= maxwidth) && (entry->bHeight >= maxheight) &&
|
|
(entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->bWidth;
|
|
maxheight = entry->bHeight;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* Now find a larger one with less colors */
|
|
|
|
maxcolors = 0;
|
|
maxwidth = maxheight = 255;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth <= maxwidth) && (entry->bHeight <= maxheight) &&
|
|
(entry->bColorCount <= colors) && (entry->bColorCount > maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->bWidth;
|
|
maxheight = entry->bHeight;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* Now find a larger one with more colors */
|
|
|
|
maxcolors = maxwidth = maxheight = 255;
|
|
for (i = 0, entry = &dir->idEntries[0].icon; i < dir->idCount; i++,entry++)
|
|
if ((entry->bWidth <= maxwidth) && (entry->bHeight <= maxheight) &&
|
|
(entry->bColorCount > colors) && (entry->bColorCount <= maxcolors))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->bWidth;
|
|
maxheight = entry->bHeight;
|
|
maxcolors = entry->bColorCount;
|
|
}
|
|
|
|
return bestEntry;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* CURSORICON32_FindBestCursor
|
|
*
|
|
* Find the cursor closest to the requested size.
|
|
*/
|
|
static CURSORDIRENTRY32 *CURSORICON32_FindBestCursor( CURSORICONDIR32 *dir,
|
|
int width, int height )
|
|
{
|
|
int i, maxwidth, maxheight;
|
|
CURSORDIRENTRY32 *entry, *bestEntry = NULL;
|
|
|
|
if (dir->idCount < 1)
|
|
{
|
|
fprintf( stderr, "Cursor: empty directory!\n" );
|
|
return NULL;
|
|
}
|
|
if (dir->idCount == 1) return &dir->idEntries[0].cursor; /* No choice... */
|
|
|
|
/* First find the largest one smaller than or equal to the requested size*/
|
|
|
|
maxwidth = maxheight = 0;
|
|
for(i = 0,entry = &dir->idEntries[0].cursor; i < dir->idCount; i++,entry++)
|
|
if ((entry->wWidth <= width) && (entry->wHeight <= height) &&
|
|
(entry->wWidth > maxwidth) && (entry->wHeight > maxheight))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->wWidth;
|
|
maxheight = entry->wHeight;
|
|
}
|
|
if (bestEntry) return bestEntry;
|
|
|
|
/* Now find the smallest one larger than the requested size */
|
|
|
|
maxwidth = maxheight = 255;
|
|
for(i = 0,entry = &dir->idEntries[0].cursor; i < dir->idCount; i++,entry++)
|
|
if ((entry->wWidth < maxwidth) && (entry->wHeight < maxheight))
|
|
{
|
|
bestEntry = entry;
|
|
maxwidth = entry->wWidth;
|
|
maxheight = entry->wHeight;
|
|
}
|
|
|
|
return bestEntry;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* CURSORICON32_LoadDirEntry
|
|
*
|
|
* Load the icon/cursor directory for a given resource name and find the
|
|
* best matching entry.
|
|
*/
|
|
static BOOL CURSORICON32_LoadDirEntry(HANDLE hInstance, LPCWSTR name,
|
|
int width, int height, int colors,
|
|
BOOL fCursor, CURSORICONDIRENTRY32 *dirEntry)
|
|
{
|
|
HANDLE32 hRsrc;
|
|
HANDLE32 hMem;
|
|
CURSORICONDIR32 *dir;
|
|
CURSORICONDIRENTRY32 *entry = NULL;
|
|
|
|
if (!(hRsrc = FindResource32( hInstance, name,
|
|
(LPCWSTR)(fCursor ? RT_GROUP_CURSOR : RT_GROUP_ICON) )))
|
|
return FALSE;
|
|
if (!(hMem = LoadResource32( hInstance, hRsrc ))) return FALSE;
|
|
if ((dir = (CURSORICONDIR32 *)LockResource32( hMem )))
|
|
{
|
|
if (fCursor)
|
|
entry = (CURSORICONDIRENTRY32 *)CURSORICON32_FindBestCursor( dir,
|
|
width, height );
|
|
else
|
|
entry = (CURSORICONDIRENTRY32 *)CURSORICON32_FindBestIcon( dir,
|
|
width, height, colors );
|
|
if (entry) *dirEntry = *entry;
|
|
}
|
|
FreeResource32( hMem );
|
|
return (entry != NULL);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* CURSORICON32_LoadHandler
|
|
*
|
|
* Create a cursor or icon from a resource.
|
|
*/
|
|
static HANDLE CURSORICON32_LoadHandler( HANDLE32 handle, HINSTANCE hInstance,
|
|
BOOL fCursor )
|
|
{
|
|
HANDLE hAndBits, hXorBits, hRes;
|
|
HDC hdc;
|
|
int size, sizeAnd, sizeXor;
|
|
POINT hotspot = { 0 ,0 };
|
|
BITMAPOBJ *bmpXor, *bmpAnd;
|
|
BITMAPINFO *bmi, *pInfo;
|
|
CURSORICONINFO *info;
|
|
char *bits;
|
|
|
|
hRes=0;
|
|
if (fCursor) /* If cursor, get the hotspot */
|
|
{
|
|
POINT *pt = (POINT *)LockResource32( handle );
|
|
hotspot = *pt;
|
|
bmi = (BITMAPINFO *)(pt + 1);
|
|
}
|
|
else bmi = (BITMAPINFO *)LockResource32( handle );
|
|
|
|
/* Create a copy of the bitmap header */
|
|
|
|
size = DIB_BitmapInfoSize( bmi, DIB_RGB_COLORS );
|
|
/* Make sure we have room for the monochrome bitmap later on */
|
|
size = MAX( size, sizeof(BITMAPINFOHEADER) + 2*sizeof(RGBQUAD) );
|
|
pInfo = (BITMAPINFO *)xmalloc( size );
|
|
memcpy( pInfo, bmi, size );
|
|
|
|
if (pInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
|
|
{
|
|
if (pInfo->bmiHeader.biCompression != BI_RGB)
|
|
{
|
|
fprintf(stderr,"Unknown size for compressed icon bitmap.\n");
|
|
free( pInfo );
|
|
return 0;
|
|
}
|
|
pInfo->bmiHeader.biHeight /= 2;
|
|
}
|
|
else if (pInfo->bmiHeader.biSize == sizeof(BITMAPCOREHEADER))
|
|
{
|
|
BITMAPCOREHEADER *core = (BITMAPCOREHEADER *)pInfo;
|
|
core->bcHeight /= 2;
|
|
}
|
|
else
|
|
{
|
|
fprintf( stderr, "CURSORICON32_Load: Unknown bitmap length %ld!\n",
|
|
pInfo->bmiHeader.biSize );
|
|
free( pInfo );
|
|
return 0;
|
|
}
|
|
|
|
/* Create the XOR bitmap */
|
|
|
|
if (!(hdc = GetDC( 0 )))
|
|
{
|
|
free( pInfo );
|
|
return 0;
|
|
}
|
|
|
|
hXorBits = CreateDIBitmap( hdc, &pInfo->bmiHeader, CBM_INIT,
|
|
(char*)bmi + size, pInfo, DIB_RGB_COLORS );
|
|
|
|
/* Fix the bitmap header to load the monochrome mask */
|
|
|
|
if (pInfo->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))
|
|
{
|
|
BITMAPINFOHEADER *bih = &pInfo->bmiHeader;
|
|
RGBQUAD *rgb = pInfo->bmiColors;
|
|
bits = (char *)bmi + size +
|
|
DIB_GetImageWidthBytes(bih->biWidth,bih->biBitCount)*bih->biHeight;
|
|
bih->biBitCount = 1;
|
|
bih->biClrUsed = bih->biClrImportant = 2;
|
|
rgb[0].rgbBlue = rgb[0].rgbGreen = rgb[0].rgbRed = 0x00;
|
|
rgb[1].rgbBlue = rgb[1].rgbGreen = rgb[1].rgbRed = 0xff;
|
|
rgb[0].rgbReserved = rgb[1].rgbReserved = 0;
|
|
}
|
|
else
|
|
{
|
|
BITMAPCOREHEADER *bch = (BITMAPCOREHEADER *)pInfo;
|
|
RGBTRIPLE *rgb = (RGBTRIPLE *)(bch + 1);
|
|
bits = (char *)bmi + size +
|
|
DIB_GetImageWidthBytes(bch->bcWidth,bch->bcBitCount)*bch->bcHeight;
|
|
bch->bcBitCount = 1;
|
|
rgb[0].rgbtBlue = rgb[0].rgbtGreen = rgb[0].rgbtRed = 0x00;
|
|
rgb[1].rgbtBlue = rgb[1].rgbtGreen = rgb[1].rgbtRed = 0xff;
|
|
}
|
|
|
|
/* Create the AND bitmap */
|
|
|
|
hAndBits = CreateDIBitmap( hdc, &pInfo->bmiHeader, CBM_INIT,
|
|
bits, pInfo, DIB_RGB_COLORS );
|
|
ReleaseDC( 0, hdc );
|
|
|
|
/* Now create the CURSORICONINFO structure */
|
|
|
|
bmpXor = (BITMAPOBJ *) GDI_GetObjPtr( hXorBits, BITMAP_MAGIC );
|
|
bmpAnd = (BITMAPOBJ *) GDI_GetObjPtr( hAndBits, BITMAP_MAGIC );
|
|
sizeXor = bmpXor->bitmap.bmHeight * bmpXor->bitmap.bmWidthBytes;
|
|
sizeAnd = bmpAnd->bitmap.bmHeight * bmpAnd->bitmap.bmWidthBytes;
|
|
|
|
if (!(hRes = GlobalAlloc( GMEM_MOVEABLE,
|
|
sizeof(CURSORICONINFO) + sizeXor + sizeAnd)))
|
|
{
|
|
DeleteObject( hXorBits );
|
|
DeleteObject( hAndBits );
|
|
return 0;
|
|
}
|
|
|
|
/* Make it owned by the module */
|
|
if (hInstance) FarSetOwner( hRes, (WORD)(DWORD)GetExePtr(hInstance) );
|
|
|
|
info = (CURSORICONINFO *)GlobalLock( hRes );
|
|
info->ptHotSpot.x = hotspot.x;
|
|
info->ptHotSpot.y = hotspot.y;
|
|
info->nWidth = bmpXor->bitmap.bmWidth;
|
|
info->nHeight = bmpXor->bitmap.bmHeight;
|
|
info->nWidthBytes = bmpXor->bitmap.bmWidthBytes;
|
|
info->bPlanes = bmpXor->bitmap.bmPlanes;
|
|
info->bBitsPerPixel = bmpXor->bitmap.bmBitsPixel;
|
|
|
|
/* Transfer the bitmap bits to the CURSORICONINFO structure */
|
|
|
|
GetBitmapBits( hAndBits, sizeAnd, (char *)(info + 1) );
|
|
GetBitmapBits( hXorBits, sizeXor, (char *)(info + 1) + sizeAnd );
|
|
DeleteObject( hXorBits );
|
|
DeleteObject( hAndBits );
|
|
GlobalUnlock( hRes );
|
|
return hRes;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* CURSORICON32_Load
|
|
*
|
|
* Load a cursor or icon.
|
|
*/
|
|
static HANDLE CURSORICON32_Load( HANDLE hInstance, LPCWSTR name, int width,
|
|
int height, int colors, BOOL fCursor )
|
|
{
|
|
HANDLE32 handle;
|
|
HANDLE hRet;
|
|
HANDLE32 hRsrc;
|
|
CURSORICONDIRENTRY32 dirEntry;
|
|
|
|
if(!hInstance) /* OEM cursor/icon */
|
|
{
|
|
WORD resid;
|
|
if(HIWORD(name))
|
|
{
|
|
LPSTR ansi;
|
|
ansi=STRING32_DupUniToAnsi(name);
|
|
if(ansi[0]=='#') /*Check for '#xxx' name */
|
|
{
|
|
resid=atoi(ansi+1);
|
|
free(ansi);
|
|
}else{
|
|
free(ansi);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
resid=(WORD)(int)name;
|
|
return OBM_LoadCursorIcon(resid, fCursor);
|
|
}
|
|
|
|
/* Find the best entry in the directory */
|
|
|
|
if (!CURSORICON32_LoadDirEntry( hInstance, name, width, height,
|
|
colors, fCursor, &dirEntry )) return 0;
|
|
|
|
/* Load the resource */
|
|
|
|
if (!(hRsrc = FindResource32( hInstance,
|
|
(LPWSTR) (DWORD) dirEntry.icon.wResId,
|
|
(LPWSTR) (fCursor ? RT_CURSOR : RT_ICON )))) return 0;
|
|
if (!(handle = LoadResource32( hInstance, hRsrc ))) return 0;
|
|
|
|
hRet = CURSORICON32_LoadHandler( handle, hInstance, fCursor );
|
|
FreeResource32(handle);
|
|
return hRet;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LoadCursor
|
|
*/
|
|
HCURSOR WIN32_LoadCursorW( HANDLE hInstance, LPCWSTR name )
|
|
{
|
|
return CURSORICON32_Load( hInstance, name,
|
|
SYSMETRICS_CXCURSOR, SYSMETRICS_CYCURSOR, 1, TRUE);
|
|
}
|
|
|
|
HCURSOR WIN32_LoadCursorA(HANDLE hInstance, LPCSTR name)
|
|
{
|
|
HCURSOR res=0;
|
|
if(!HIWORD(name))
|
|
return WIN32_LoadCursorW(hInstance, name);
|
|
else {
|
|
LPWSTR uni = STRING32_DupAnsiToUni(name);
|
|
res = WIN32_LoadCursorW(hInstance, uni);
|
|
free(uni);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LoadIcon
|
|
*/
|
|
HICON WIN32_LoadIconW( HANDLE hInstance, LPCWSTR name )
|
|
{
|
|
return CURSORICON32_Load( hInstance, name,
|
|
SYSMETRICS_CXICON, SYSMETRICS_CYICON,
|
|
MIN( 16, 1 << screenDepth ), FALSE );
|
|
}
|
|
|
|
HICON WIN32_LoadIconA( HANDLE hInstance, LPCSTR name)
|
|
{
|
|
HICON res=0;
|
|
if(!HIWORD(name))
|
|
return WIN32_LoadIconW(hInstance, name);
|
|
else {
|
|
LPWSTR uni = STRING32_DupAnsiToUni(name);
|
|
res = WIN32_LoadIconW(hInstance, uni);
|
|
free(uni);
|
|
}
|
|
return res;
|
|
}
|
|
|