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wine/dlls/comctl32/imagelist.c

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/*
* ImageList implementation
*
* Copyright 1998 Eric Kohl
* Copyright 2000 Jason Mawdsley
* Copyright 2001, 2004 Michael Stefaniuc
* Copyright 2001 Charles Loep for CodeWeavers
* Copyright 2002 Dimitrie O. Paun
* Copyright 2009 Owen Rudge for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTE
*
* This code was audited for completeness against the documented features
* of Comctl32.dll version 6.0 on Sep. 12, 2002, by Dimitrie O. Paun.
*
* Unless otherwise noted, we believe this code to be complete, as per
* the specification mentioned above.
* If you discover missing features, or bugs, please note them below.
*
* TODO:
* - Add support for ILD_PRESERVEALPHA, ILD_SCALE, ILD_DPISCALE
* - Add support for ILS_GLOW, ILS_SHADOW, ILS_SATURATE
* - Thread-safe locking
*/
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#define COBJMACROS
#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "commctrl.h"
#include "comctl32.h"
#include "commoncontrols.h"
#include "imagelist.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(imagelist);
#define MAX_OVERLAYIMAGE 15
/* internal image list data used for Drag & Drop operations */
typedef struct
{
HWND hwnd;
HIMAGELIST himl;
/* position of the drag image relative to the window */
INT x;
INT y;
/* offset of the hotspot relative to the origin of the image */
INT dxHotspot;
INT dyHotspot;
/* is the drag image visible */
BOOL bShow;
/* saved background */
HBITMAP hbmBg;
} INTERNALDRAG;
static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0 };
static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count);
static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv);
static inline BOOL is_valid(HIMAGELIST himl);
/*
* An imagelist with N images is tiled like this:
*
* N/4 ->
*
* 4 048C..
* 159D..
* | 26AE.N
* V 37BF.
*/
#define TILE_COUNT 4
static inline UINT imagelist_height( UINT count )
{
return ((count + TILE_COUNT - 1)/TILE_COUNT);
}
static inline void imagelist_point_from_index( HIMAGELIST himl, UINT index, LPPOINT pt )
{
pt->x = (index%TILE_COUNT) * himl->cx;
pt->y = (index/TILE_COUNT) * himl->cy;
}
static inline void imagelist_get_bitmap_size( HIMAGELIST himl, UINT count, SIZE *sz )
{
sz->cx = himl->cx * TILE_COUNT;
sz->cy = imagelist_height( count ) * himl->cy;
}
/*
* imagelist_copy_images()
*
* Copies a block of count images from offset src in the list to offset dest.
* Images are copied a row at at time. Assumes hdcSrc and hdcDest are different.
*/
static inline void imagelist_copy_images( HIMAGELIST himl, HDC hdcSrc, HDC hdcDest,
UINT src, UINT count, UINT dest )
{
POINT ptSrc, ptDest;
SIZE sz;
UINT i;
for ( i=0; i<TILE_COUNT; i++ )
{
imagelist_point_from_index( himl, src+i, &ptSrc );
imagelist_point_from_index( himl, dest+i, &ptDest );
sz.cx = himl->cx;
sz.cy = himl->cy * imagelist_height( count - i );
BitBlt( hdcDest, ptDest.x, ptDest.y, sz.cx, sz.cy,
hdcSrc, ptSrc.x, ptSrc.y, SRCCOPY );
}
}
/* add images with an alpha channel when the image list is 32 bpp */
static BOOL add_with_alpha( HIMAGELIST himl, HDC hdc, int pos, int count,
int width, int height, HBITMAP hbmImage, HBITMAP hbmMask )
{
BOOL ret = FALSE;
BITMAP bm;
BITMAPINFO *info, *mask_info = NULL;
DWORD *bits = NULL;
BYTE *mask_bits = NULL;
int i, j, n;
POINT pt;
DWORD mask_width;
if (!GetObjectW( hbmImage, sizeof(bm), &bm )) return FALSE;
/* if either the imagelist or the source bitmap don't have an alpha channel, bail out now */
if (!himl->has_alpha) return FALSE;
if (bm.bmBitsPixel != 32) return FALSE;
SelectObject( hdc, hbmImage );
mask_width = (bm.bmWidth + 31) / 32 * 4;
if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
info->bmiHeader.biWidth = bm.bmWidth;
info->bmiHeader.biHeight = -height;
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = 32;
info->bmiHeader.biCompression = BI_RGB;
info->bmiHeader.biSizeImage = bm.bmWidth * height * 4;
info->bmiHeader.biXPelsPerMeter = 0;
info->bmiHeader.biYPelsPerMeter = 0;
info->bmiHeader.biClrUsed = 0;
info->bmiHeader.biClrImportant = 0;
if (!(bits = HeapAlloc( GetProcessHeap(), 0, info->bmiHeader.biSizeImage ))) goto done;
if (!GetDIBits( hdc, hbmImage, 0, height, bits, info, DIB_RGB_COLORS )) goto done;
if (hbmMask)
{
if (!(mask_info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[2] ))))
goto done;
mask_info->bmiHeader = info->bmiHeader;
mask_info->bmiHeader.biBitCount = 1;
mask_info->bmiHeader.biSizeImage = mask_width * height;
if (!(mask_bits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, info->bmiHeader.biSizeImage )))
goto done;
if (!GetDIBits( hdc, hbmMask, 0, height, mask_bits, mask_info, DIB_RGB_COLORS )) goto done;
}
for (n = 0; n < count; n++)
{
int has_alpha = 0;
imagelist_point_from_index( himl, pos + n, &pt );
/* check if bitmap has an alpha channel */
for (i = 0; i < height && !has_alpha; i++)
for (j = n * width; j < (n + 1) * width; j++)
if ((has_alpha = ((bits[i * bm.bmWidth + j] & 0xff000000) != 0))) break;
if (!has_alpha) /* generate alpha channel from the mask */
{
for (i = 0; i < height; i++)
for (j = n * width; j < (n + 1) * width; j++)
if (!mask_bits || !((mask_bits[i * mask_width + j / 8] << (j % 8)) & 0x80))
bits[i * bm.bmWidth + j] |= 0xff000000;
else
bits[i * bm.bmWidth + j] = 0;
}
else
{
himl->has_alpha[pos + n] = 1;
if (mask_info && himl->hbmMask) /* generate the mask from the alpha channel */
{
for (i = 0; i < height; i++)
for (j = n * width; j < (n + 1) * width; j++)
if ((bits[i * bm.bmWidth + j] >> 24) > 25) /* more than 10% alpha */
mask_bits[i * mask_width + j / 8] &= ~(0x80 >> (j % 8));
else
mask_bits[i * mask_width + j / 8] |= 0x80 >> (j % 8);
}
}
StretchDIBits( himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
n * width, 0, width, height, bits, info, DIB_RGB_COLORS, SRCCOPY );
if (mask_info)
StretchDIBits( himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
n * width, 0, width, height, mask_bits, mask_info, DIB_RGB_COLORS, SRCCOPY );
}
ret = TRUE;
done:
HeapFree( GetProcessHeap(), 0, info );
HeapFree( GetProcessHeap(), 0, mask_info );
HeapFree( GetProcessHeap(), 0, bits );
HeapFree( GetProcessHeap(), 0, mask_bits );
return ret;
}
/*************************************************************************
* IMAGELIST_InternalExpandBitmaps [Internal]
*
* Expands the bitmaps of an image list by the given number of images.
*
* PARAMS
* himl [I] handle to image list
* nImageCount [I] number of images to add
*
* RETURNS
* nothing
*
* NOTES
* This function CANNOT be used to reduce the number of images.
*/
static void
IMAGELIST_InternalExpandBitmaps(HIMAGELIST himl, INT nImageCount)
{
HDC hdcBitmap;
HBITMAP hbmNewBitmap, hbmNull;
INT nNewCount;
SIZE sz;
TRACE("%p has allocated %d, max %d, grow %d images\n", himl, himl->cCurImage, himl->cMaxImage, himl->cGrow);
if (himl->cCurImage + nImageCount < himl->cMaxImage)
return;
nNewCount = himl->cMaxImage + max(nImageCount, himl->cGrow) + 1;
imagelist_get_bitmap_size(himl, nNewCount, &sz);
TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, sz.cx, sz.cy, nNewCount);
hdcBitmap = CreateCompatibleDC (0);
hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
if (hbmNewBitmap == 0)
ERR("creating new image bitmap (x=%d y=%d)!\n", sz.cx, sz.cy);
if (himl->cCurImage)
{
hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
himl->hdcImage, 0, 0, SRCCOPY);
SelectObject (hdcBitmap, hbmNull);
}
SelectObject (himl->hdcImage, hbmNewBitmap);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewBitmap;
if (himl->flags & ILC_MASK)
{
hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
if (hbmNewBitmap == 0)
ERR("creating new mask bitmap!\n");
if(himl->cCurImage)
{
hbmNull = SelectObject (hdcBitmap, hbmNewBitmap);
BitBlt (hdcBitmap, 0, 0, sz.cx, sz.cy,
himl->hdcMask, 0, 0, SRCCOPY);
SelectObject (hdcBitmap, hbmNull);
}
SelectObject (himl->hdcMask, hbmNewBitmap);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewBitmap;
}
if (himl->has_alpha)
{
char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
if (new_alpha) himl->has_alpha = new_alpha;
else
{
HeapFree( GetProcessHeap(), 0, himl->has_alpha );
himl->has_alpha = NULL;
}
}
himl->cMaxImage = nNewCount;
DeleteDC (hdcBitmap);
}
/*************************************************************************
* ImageList_Add [COMCTL32.@]
*
* Add an image or images to an image list.
*
* PARAMS
* himl [I] handle to image list
* hbmImage [I] handle to image bitmap
* hbmMask [I] handle to mask bitmap
*
* RETURNS
* Success: Index of the first new image.
* Failure: -1
*/
INT WINAPI
ImageList_Add (HIMAGELIST himl, HBITMAP hbmImage, HBITMAP hbmMask)
{
HDC hdcBitmap, hdcTemp = 0;
INT nFirstIndex, nImageCount, i;
BITMAP bmp;
POINT pt;
TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
if (!is_valid(himl))
return -1;
if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
return -1;
TRACE("himl %p, cCurImage %d, cMaxImage %d, cGrow %d, cx %d, cy %d\n",
himl, himl->cCurImage, himl->cMaxImage, himl->cGrow, himl->cx, himl->cy);
nImageCount = bmp.bmWidth / himl->cx;
TRACE("%p has %d images (%d x %d)\n", hbmImage, nImageCount, bmp.bmWidth, bmp.bmHeight);
IMAGELIST_InternalExpandBitmaps(himl, nImageCount);
hdcBitmap = CreateCompatibleDC(0);
SelectObject(hdcBitmap, hbmImage);
if (add_with_alpha( himl, hdcBitmap, himl->cCurImage, nImageCount,
himl->cx, min( himl->cy, bmp.bmHeight), hbmImage, hbmMask ))
goto done;
if (himl->hbmMask)
{
hdcTemp = CreateCompatibleDC(0);
SelectObject(hdcTemp, hbmMask);
}
for (i=0; i<nImageCount; i++)
{
imagelist_point_from_index( himl, himl->cCurImage + i, &pt );
/* Copy result to the imagelist
*/
BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
hdcBitmap, i*himl->cx, 0, SRCCOPY );
if (!himl->hbmMask)
continue;
BitBlt( himl->hdcMask, pt.x, pt.y, himl->cx, bmp.bmHeight,
hdcTemp, i*himl->cx, 0, SRCCOPY );
/* Remove the background from the image
*/
BitBlt( himl->hdcImage, pt.x, pt.y, himl->cx, bmp.bmHeight,
himl->hdcMask, pt.x, pt.y, 0x220326 ); /* NOTSRCAND */
}
if (hdcTemp) DeleteDC(hdcTemp);
done:
DeleteDC(hdcBitmap);
nFirstIndex = himl->cCurImage;
himl->cCurImage += nImageCount;
return nFirstIndex;
}
/*************************************************************************
* ImageList_AddIcon [COMCTL32.@]
*
* Adds an icon to an image list.
*
* PARAMS
* himl [I] handle to image list
* hIcon [I] handle to icon
*
* RETURNS
* Success: index of the new image
* Failure: -1
*/
#undef ImageList_AddIcon
INT WINAPI ImageList_AddIcon (HIMAGELIST himl, HICON hIcon)
{
return ImageList_ReplaceIcon (himl, -1, hIcon);
}
/*************************************************************************
* ImageList_AddMasked [COMCTL32.@]
*
* Adds an image or images to an image list and creates a mask from the
* specified bitmap using the mask color.
*
* PARAMS
* himl [I] handle to image list.
* hBitmap [I] handle to bitmap
* clrMask [I] mask color.
*
* RETURNS
* Success: Index of the first new image.
* Failure: -1
*/
INT WINAPI
ImageList_AddMasked (HIMAGELIST himl, HBITMAP hBitmap, COLORREF clrMask)
{
HDC hdcMask, hdcBitmap;
INT ret;
BITMAP bmp;
HBITMAP hMaskBitmap;
COLORREF bkColor;
TRACE("himl=%p hbitmap=%p clrmask=%x\n", himl, hBitmap, clrMask);
if (!is_valid(himl))
return -1;
if (!GetObjectW(hBitmap, sizeof(BITMAP), &bmp))
return -1;
hdcBitmap = CreateCompatibleDC(0);
SelectObject(hdcBitmap, hBitmap);
/* Create a temp Mask so we can remove the background of the Image */
hdcMask = CreateCompatibleDC(0);
hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
SelectObject(hdcMask, hMaskBitmap);
/* create monochrome image to the mask bitmap */
bkColor = (clrMask != CLR_DEFAULT) ? clrMask : GetPixel (hdcBitmap, 0, 0);
SetBkColor (hdcBitmap, bkColor);
BitBlt (hdcMask, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
SetBkColor(hdcBitmap, RGB(255,255,255));
/*
* Remove the background from the image
*
* WINDOWS BUG ALERT!!!!!!
* The statement below should not be done in common practice
* but this is how ImageList_AddMasked works in Windows.
* It overwrites the original bitmap passed, this was discovered
* by using the same bitmap to iterate the different styles
* on windows where it failed (BUT ImageList_Add is OK)
* This is here in case some apps rely on this bug
*
* Blt mode 0x220326 is NOTSRCAND
*/
BitBlt(hdcBitmap, 0, 0, bmp.bmWidth, bmp.bmHeight, hdcMask, 0, 0, 0x220326);
DeleteDC(hdcBitmap);
DeleteDC(hdcMask);
ret = ImageList_Add( himl, hBitmap, hMaskBitmap );
DeleteObject(hMaskBitmap);
return ret;
}
/*************************************************************************
* ImageList_BeginDrag [COMCTL32.@]
*
* Creates a temporary image list that contains one image. It will be used
* as a drag image.
*
* PARAMS
* himlTrack [I] handle to the source image list
* iTrack [I] index of the drag image in the source image list
* dxHotspot [I] X position of the hot spot of the drag image
* dyHotspot [I] Y position of the hot spot of the drag image
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_BeginDrag (HIMAGELIST himlTrack, INT iTrack,
INT dxHotspot, INT dyHotspot)
{
INT cx, cy;
TRACE("(himlTrack=%p iTrack=%d dx=%d dy=%d)\n", himlTrack, iTrack,
dxHotspot, dyHotspot);
if (!is_valid(himlTrack))
return FALSE;
if (InternalDrag.himl)
ImageList_EndDrag ();
cx = himlTrack->cx;
cy = himlTrack->cy;
InternalDrag.himl = ImageList_Create (cx, cy, himlTrack->flags, 1, 1);
if (InternalDrag.himl == NULL) {
WARN("Error creating drag image list!\n");
return FALSE;
}
InternalDrag.dxHotspot = dxHotspot;
InternalDrag.dyHotspot = dyHotspot;
/* copy image */
BitBlt (InternalDrag.himl->hdcImage, 0, 0, cx, cy, himlTrack->hdcImage, iTrack * cx, 0, SRCCOPY);
/* copy mask */
BitBlt (InternalDrag.himl->hdcMask, 0, 0, cx, cy, himlTrack->hdcMask, iTrack * cx, 0, SRCCOPY);
InternalDrag.himl->cCurImage = 1;
return TRUE;
}
/*************************************************************************
* ImageList_Copy [COMCTL32.@]
*
* Copies an image of the source image list to an image of the
* destination image list. Images can be copied or swapped.
*
* PARAMS
* himlDst [I] handle to the destination image list
* iDst [I] destination image index.
* himlSrc [I] handle to the source image list
* iSrc [I] source image index
* uFlags [I] flags for the copy operation
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* Copying from one image list to another is possible. The original
* implementation just copies or swaps within one image list.
* Could this feature become a bug??? ;-)
*/
BOOL WINAPI
ImageList_Copy (HIMAGELIST himlDst, INT iDst, HIMAGELIST himlSrc,
INT iSrc, UINT uFlags)
{
POINT ptSrc, ptDst;
TRACE("himlDst=%p iDst=%d himlSrc=%p iSrc=%d\n", himlDst, iDst, himlSrc, iSrc);
if (!is_valid(himlSrc) || !is_valid(himlDst))
return FALSE;
if ((iDst < 0) || (iDst >= himlDst->cCurImage))
return FALSE;
if ((iSrc < 0) || (iSrc >= himlSrc->cCurImage))
return FALSE;
imagelist_point_from_index( himlDst, iDst, &ptDst );
imagelist_point_from_index( himlSrc, iSrc, &ptSrc );
if (uFlags & ILCF_SWAP) {
/* swap */
HDC hdcBmp;
HBITMAP hbmTempImage, hbmTempMask;
hdcBmp = CreateCompatibleDC (0);
/* create temporary bitmaps */
hbmTempImage = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
himlSrc->uBitsPixel, NULL);
hbmTempMask = CreateBitmap (himlSrc->cx, himlSrc->cy, 1,
1, NULL);
/* copy (and stretch) destination to temporary bitmaps.(save) */
/* image */
SelectObject (hdcBmp, hbmTempImage);
StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
SRCCOPY);
/* mask */
SelectObject (hdcBmp, hbmTempMask);
StretchBlt (hdcBmp, 0, 0, himlSrc->cx, himlSrc->cy,
himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
SRCCOPY);
/* copy (and stretch) source to destination */
/* image */
StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* mask */
StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* copy (without stretching) temporary bitmaps to source (restore) */
/* mask */
BitBlt (himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
hdcBmp, 0, 0, SRCCOPY);
/* image */
BitBlt (himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
hdcBmp, 0, 0, SRCCOPY);
/* delete temporary bitmaps */
DeleteObject (hbmTempMask);
DeleteObject (hbmTempImage);
DeleteDC(hdcBmp);
}
else {
/* copy image */
StretchBlt (himlDst->hdcImage, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
himlSrc->hdcImage, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* copy mask */
StretchBlt (himlDst->hdcMask, ptDst.x, ptDst.y, himlDst->cx, himlDst->cy,
himlSrc->hdcMask, ptSrc.x, ptSrc.y, himlSrc->cx, himlSrc->cy,
SRCCOPY);
}
return TRUE;
}
/*************************************************************************
* ImageList_Create [COMCTL32.@]
*
* Creates a new image list.
*
* PARAMS
* cx [I] image height
* cy [I] image width
* flags [I] creation flags
* cInitial [I] initial number of images in the image list
* cGrow [I] number of images by which image list grows
*
* RETURNS
* Success: Handle to the created image list
* Failure: NULL
*/
HIMAGELIST WINAPI
ImageList_Create (INT cx, INT cy, UINT flags,
INT cInitial, INT cGrow)
{
HIMAGELIST himl;
INT nCount;
HBITMAP hbmTemp;
UINT ilc = (flags & 0xFE);
static const WORD aBitBlend25[] =
{0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
static const WORD aBitBlend50[] =
{0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
if (cx <= 0 || cy <= 0) return NULL;
/* Create the IImageList interface for the image list */
if (FAILED(ImageListImpl_CreateInstance(NULL, &IID_IImageList, (void **)&himl)))
return NULL;
cGrow = (cGrow < 4) ? 4 : (cGrow + 3) & ~3;
himl->cx = cx;
himl->cy = cy;
himl->flags = flags;
himl->cMaxImage = cInitial + 1;
himl->cInitial = cInitial;
himl->cGrow = cGrow;
himl->clrFg = CLR_DEFAULT;
himl->clrBk = CLR_NONE;
/* initialize overlay mask indices */
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
/* Create Image & Mask DCs */
himl->hdcImage = CreateCompatibleDC (0);
if (!himl->hdcImage)
goto cleanup;
if (himl->flags & ILC_MASK){
himl->hdcMask = CreateCompatibleDC(0);
if (!himl->hdcMask)
goto cleanup;
}
/* Default to ILC_COLOR4 if none of the ILC_COLOR* flags are specified */
if (ilc == ILC_COLOR)
ilc = ILC_COLOR4;
if (ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32)
himl->uBitsPixel = ilc;
else
himl->uBitsPixel = (UINT)GetDeviceCaps (himl->hdcImage, BITSPIXEL);
if (himl->cMaxImage > 0) {
himl->hbmImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
SelectObject(himl->hdcImage, himl->hbmImage);
} else
himl->hbmImage = 0;
if ((himl->cMaxImage > 0) && (himl->flags & ILC_MASK)) {
SIZE sz;
imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
himl->hbmMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
if (himl->hbmMask == 0) {
ERR("Error creating mask bitmap!\n");
goto cleanup;
}
SelectObject(himl->hdcMask, himl->hbmMask);
}
else
himl->hbmMask = 0;
if (ilc == ILC_COLOR32)
himl->has_alpha = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->cMaxImage );
else
himl->has_alpha = NULL;
/* create blending brushes */
hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend25);
himl->hbrBlend25 = CreatePatternBrush (hbmTemp);
DeleteObject (hbmTemp);
hbmTemp = CreateBitmap (8, 8, 1, 1, aBitBlend50);
himl->hbrBlend50 = CreatePatternBrush (hbmTemp);
DeleteObject (hbmTemp);
TRACE("created imagelist %p\n", himl);
return himl;
cleanup:
ImageList_Destroy(himl);
return NULL;
}
/*************************************************************************
* ImageList_Destroy [COMCTL32.@]
*
* Destroys an image list.
*
* PARAMS
* himl [I] handle to image list
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_Destroy (HIMAGELIST himl)
{
if (!is_valid(himl))
return FALSE;
IImageList_Release((IImageList *) himl);
return TRUE;
}
/*************************************************************************
* ImageList_DragEnter [COMCTL32.@]
*
* Locks window update and displays the drag image at the given position.
*
* PARAMS
* hwndLock [I] handle of the window that owns the drag image.
* x [I] X position of the drag image.
* y [I] Y position of the drag image.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* The position of the drag image is relative to the window, not
* the client area.
*/
BOOL WINAPI
ImageList_DragEnter (HWND hwndLock, INT x, INT y)
{
TRACE("(hwnd=%p x=%d y=%d)\n", hwndLock, x, y);
if (!is_valid(InternalDrag.himl))
return FALSE;
if (hwndLock)
InternalDrag.hwnd = hwndLock;
else
InternalDrag.hwnd = GetDesktopWindow ();
InternalDrag.x = x;
InternalDrag.y = y;
/* draw the drag image and save the background */
if (!ImageList_DragShowNolock(TRUE)) {
return FALSE;
}
return TRUE;
}
/*************************************************************************
* ImageList_DragLeave [COMCTL32.@]
*
* Unlocks window update and hides the drag image.
*
* PARAMS
* hwndLock [I] handle of the window that owns the drag image.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_DragLeave (HWND hwndLock)
{
/* As we don't save drag info in the window this can lead to problems if
an app does not supply the same window as DragEnter */
/* if (hwndLock)
InternalDrag.hwnd = hwndLock;
else
InternalDrag.hwnd = GetDesktopWindow (); */
if(!hwndLock)
hwndLock = GetDesktopWindow();
if(InternalDrag.hwnd != hwndLock)
FIXME("DragLeave hWnd != DragEnter hWnd\n");
ImageList_DragShowNolock (FALSE);
return TRUE;
}
/*************************************************************************
* ImageList_InternalDragDraw [Internal]
*
* Draws the drag image.
*
* PARAMS
* hdc [I] device context to draw into.
* x [I] X position of the drag image.
* y [I] Y position of the drag image.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* The position of the drag image is relative to the window, not
* the client area.
*
*/
static inline void
ImageList_InternalDragDraw (HDC hdc, INT x, INT y)
{
IMAGELISTDRAWPARAMS imldp;
ZeroMemory (&imldp, sizeof(imldp));
imldp.cbSize = sizeof(imldp);
imldp.himl = InternalDrag.himl;
imldp.i = 0;
imldp.hdcDst = hdc,
imldp.x = x;
imldp.y = y;
imldp.rgbBk = CLR_DEFAULT;
imldp.rgbFg = CLR_DEFAULT;
imldp.fStyle = ILD_NORMAL;
imldp.fState = ILS_ALPHA;
imldp.Frame = 192;
ImageList_DrawIndirect (&imldp);
}
/*************************************************************************
* ImageList_DragMove [COMCTL32.@]
*
* Moves the drag image.
*
* PARAMS
* x [I] X position of the drag image.
* y [I] Y position of the drag image.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* The position of the drag image is relative to the window, not
* the client area.
*/
BOOL WINAPI
ImageList_DragMove (INT x, INT y)
{
TRACE("(x=%d y=%d)\n", x, y);
if (!is_valid(InternalDrag.himl))
return FALSE;
/* draw/update the drag image */
if (InternalDrag.bShow) {
HDC hdcDrag;
HDC hdcOffScreen;
HDC hdcBg;
HBITMAP hbmOffScreen;
INT origNewX, origNewY;
INT origOldX, origOldY;
INT origRegX, origRegY;
INT sizeRegX, sizeRegY;
/* calculate the update region */
origNewX = x - InternalDrag.dxHotspot;
origNewY = y - InternalDrag.dyHotspot;
origOldX = InternalDrag.x - InternalDrag.dxHotspot;
origOldY = InternalDrag.y - InternalDrag.dyHotspot;
origRegX = min(origNewX, origOldX);
origRegY = min(origNewY, origOldY);
sizeRegX = InternalDrag.himl->cx + abs(x - InternalDrag.x);
sizeRegY = InternalDrag.himl->cy + abs(y - InternalDrag.y);
hdcDrag = GetDCEx(InternalDrag.hwnd, 0,
DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
hdcOffScreen = CreateCompatibleDC(hdcDrag);
hdcBg = CreateCompatibleDC(hdcDrag);
hbmOffScreen = CreateCompatibleBitmap(hdcDrag, sizeRegX, sizeRegY);
SelectObject(hdcOffScreen, hbmOffScreen);
SelectObject(hdcBg, InternalDrag.hbmBg);
/* get the actual background of the update region */
BitBlt(hdcOffScreen, 0, 0, sizeRegX, sizeRegY, hdcDrag,
origRegX, origRegY, SRCCOPY);
/* erase the old image */
BitBlt(hdcOffScreen, origOldX - origRegX, origOldY - origRegY,
InternalDrag.himl->cx, InternalDrag.himl->cy, hdcBg, 0, 0,
SRCCOPY);
/* save the background */
BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
hdcOffScreen, origNewX - origRegX, origNewY - origRegY, SRCCOPY);
/* draw the image */
ImageList_InternalDragDraw(hdcOffScreen, origNewX - origRegX,
origNewY - origRegY);
/* draw the update region to the screen */
BitBlt(hdcDrag, origRegX, origRegY, sizeRegX, sizeRegY,
hdcOffScreen, 0, 0, SRCCOPY);
DeleteDC(hdcBg);
DeleteDC(hdcOffScreen);
DeleteObject(hbmOffScreen);
ReleaseDC(InternalDrag.hwnd, hdcDrag);
}
/* update the image position */
InternalDrag.x = x;
InternalDrag.y = y;
return TRUE;
}
/*************************************************************************
* ImageList_DragShowNolock [COMCTL32.@]
*
* Shows or hides the drag image.
*
* PARAMS
* bShow [I] TRUE shows the drag image, FALSE hides it.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_DragShowNolock (BOOL bShow)
{
HDC hdcDrag;
HDC hdcBg;
INT x, y;
if (!is_valid(InternalDrag.himl))
return FALSE;
TRACE("bShow=0x%X!\n", bShow);
/* DragImage is already visible/hidden */
if ((InternalDrag.bShow && bShow) || (!InternalDrag.bShow && !bShow)) {
return FALSE;
}
/* position of the origin of the DragImage */
x = InternalDrag.x - InternalDrag.dxHotspot;
y = InternalDrag.y - InternalDrag.dyHotspot;
hdcDrag = GetDCEx (InternalDrag.hwnd, 0,
DCX_WINDOW | DCX_CACHE | DCX_LOCKWINDOWUPDATE);
if (!hdcDrag) {
return FALSE;
}
hdcBg = CreateCompatibleDC(hdcDrag);
if (!InternalDrag.hbmBg) {
InternalDrag.hbmBg = CreateCompatibleBitmap(hdcDrag,
InternalDrag.himl->cx, InternalDrag.himl->cy);
}
SelectObject(hdcBg, InternalDrag.hbmBg);
if (bShow) {
/* save the background */
BitBlt(hdcBg, 0, 0, InternalDrag.himl->cx, InternalDrag.himl->cy,
hdcDrag, x, y, SRCCOPY);
/* show the image */
ImageList_InternalDragDraw(hdcDrag, x, y);
} else {
/* hide the image */
BitBlt(hdcDrag, x, y, InternalDrag.himl->cx, InternalDrag.himl->cy,
hdcBg, 0, 0, SRCCOPY);
}
InternalDrag.bShow = !InternalDrag.bShow;
DeleteDC(hdcBg);
ReleaseDC (InternalDrag.hwnd, hdcDrag);
return TRUE;
}
/*************************************************************************
* ImageList_Draw [COMCTL32.@]
*
* Draws an image.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* hdc [I] handle to device context
* x [I] x position
* y [I] y position
* fStyle [I] drawing flags
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* SEE
* ImageList_DrawEx.
*/
BOOL WINAPI
ImageList_Draw (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y, UINT fStyle)
{
return ImageList_DrawEx (himl, i, hdc, x, y, 0, 0,
CLR_DEFAULT, CLR_DEFAULT, fStyle);
}
/*************************************************************************
* ImageList_DrawEx [COMCTL32.@]
*
* Draws an image and allows to use extended drawing features.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* hdc [I] handle to device context
* x [I] X position
* y [I] Y position
* dx [I] X offset
* dy [I] Y offset
* rgbBk [I] background color
* rgbFg [I] foreground color
* fStyle [I] drawing flags
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* Calls ImageList_DrawIndirect.
*
* SEE
* ImageList_DrawIndirect.
*/
BOOL WINAPI
ImageList_DrawEx (HIMAGELIST himl, INT i, HDC hdc, INT x, INT y,
INT dx, INT dy, COLORREF rgbBk, COLORREF rgbFg,
UINT fStyle)
{
IMAGELISTDRAWPARAMS imldp;
ZeroMemory (&imldp, sizeof(imldp));
imldp.cbSize = sizeof(imldp);
imldp.himl = himl;
imldp.i = i;
imldp.hdcDst = hdc,
imldp.x = x;
imldp.y = y;
imldp.cx = dx;
imldp.cy = dy;
imldp.rgbBk = rgbBk;
imldp.rgbFg = rgbFg;
imldp.fStyle = fStyle;
return ImageList_DrawIndirect (&imldp);
}
static BOOL alpha_blend_image( HIMAGELIST himl, HDC dest_dc, int dest_x, int dest_y,
int src_x, int src_y, int cx, int cy, BLENDFUNCTION func,
UINT style, COLORREF blend_col )
{
BOOL ret = FALSE;
HDC hdc;
HBITMAP bmp = 0, mask = 0;
BITMAPINFO *info;
void *bits, *mask_bits;
unsigned int *ptr;
int i, j;
if (!(hdc = CreateCompatibleDC( 0 ))) return FALSE;
if (!(info = HeapAlloc( GetProcessHeap(), 0, FIELD_OFFSET( BITMAPINFO, bmiColors[256] )))) goto done;
info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
info->bmiHeader.biWidth = cx;
info->bmiHeader.biHeight = cy;
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biBitCount = 32;
info->bmiHeader.biCompression = BI_RGB;
info->bmiHeader.biSizeImage = cx * cy * 4;
info->bmiHeader.biXPelsPerMeter = 0;
info->bmiHeader.biYPelsPerMeter = 0;
info->bmiHeader.biClrUsed = 0;
info->bmiHeader.biClrImportant = 0;
if (!(bmp = CreateDIBSection( himl->hdcImage, info, DIB_RGB_COLORS, &bits, 0, 0 ))) goto done;
SelectObject( hdc, bmp );
BitBlt( hdc, 0, 0, cx, cy, himl->hdcImage, src_x, src_y, SRCCOPY );
if (blend_col != CLR_NONE)
{
BYTE r = GetRValue( blend_col );
BYTE g = GetGValue( blend_col );
BYTE b = GetBValue( blend_col );
if (style & ILD_BLEND25)
{
for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
*ptr = ((*ptr & 0xff000000) |
((((*ptr & 0x00ff0000) * 3 + (r << 16)) / 4) & 0x00ff0000) |
((((*ptr & 0x0000ff00) * 3 + (g << 8)) / 4) & 0x0000ff00) |
((((*ptr & 0x000000ff) * 3 + (b << 0)) / 4) & 0x000000ff));
}
else if (style & ILD_BLEND50)
{
for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
*ptr = ((*ptr & 0xff000000) |
((((*ptr & 0x00ff0000) + (r << 16)) / 2) & 0x00ff0000) |
((((*ptr & 0x0000ff00) + (g << 8)) / 2) & 0x0000ff00) |
((((*ptr & 0x000000ff) + (b << 0)) / 2) & 0x000000ff));
}
}
if (himl->has_alpha) /* we already have an alpha channel in this case */
{
/* pre-multiply by the alpha channel */
for (i = 0, ptr = bits; i < cx * cy; i++, ptr++)
{
DWORD alpha = *ptr >> 24;
*ptr = ((*ptr & 0xff000000) |
(((*ptr & 0x00ff0000) * alpha / 255) & 0x00ff0000) |
(((*ptr & 0x0000ff00) * alpha / 255) & 0x0000ff00) |
(((*ptr & 0x000000ff) * alpha / 255)));
}
}
else if (himl->hbmMask)
{
unsigned int width_bytes = (cx + 31) / 32 * 4;
/* generate alpha channel from the mask */
info->bmiHeader.biBitCount = 1;
info->bmiHeader.biSizeImage = width_bytes * cy;
if (!(mask = CreateDIBSection( himl->hdcMask, info, DIB_RGB_COLORS, &mask_bits, 0, 0 )))
goto done;
SelectObject( hdc, mask );
BitBlt( hdc, 0, 0, cx, cy, himl->hdcMask, src_x, src_y, SRCCOPY );
SelectObject( hdc, bmp );
for (i = 0, ptr = bits; i < cy; i++)
for (j = 0; j < cx; j++, ptr++)
if ((((BYTE *)mask_bits)[i * width_bytes + j / 8] << (j % 8)) & 0x80) *ptr = 0;
else *ptr |= 0xff000000;
}
ret = GdiAlphaBlend( dest_dc, dest_x, dest_y, cx, cy, hdc, 0, 0, cx, cy, func );
done:
DeleteDC( hdc );
if (bmp) DeleteObject( bmp );
if (mask) DeleteObject( mask );
HeapFree( GetProcessHeap(), 0, info );
return ret;
}
/*************************************************************************
* ImageList_DrawIndirect [COMCTL32.@]
*
* Draws an image using various parameters specified in pimldp.
*
* PARAMS
* pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
{
INT cx, cy, nOvlIdx;
DWORD fState, dwRop;
UINT fStyle;
COLORREF oldImageBk, oldImageFg;
HDC hImageDC, hImageListDC, hMaskListDC;
HBITMAP hImageBmp, hOldImageBmp, hBlendMaskBmp;
BOOL bIsTransparent, bBlend, bResult = FALSE, bMask;
HIMAGELIST himl;
HBRUSH hOldBrush;
POINT pt;
BOOL has_alpha;
if (!pimldp || !(himl = pimldp->himl)) return FALSE;
if (!is_valid(himl)) return FALSE;
if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
imagelist_point_from_index( himl, pimldp->i, &pt );
pt.x += pimldp->xBitmap;
pt.y += pimldp->yBitmap;
fState = pimldp->cbSize < sizeof(IMAGELISTDRAWPARAMS) ? ILS_NORMAL : pimldp->fState;
fStyle = pimldp->fStyle & ~ILD_OVERLAYMASK;
cx = (pimldp->cx == 0) ? himl->cx : pimldp->cx;
cy = (pimldp->cy == 0) ? himl->cy : pimldp->cy;
bIsTransparent = (fStyle & ILD_TRANSPARENT);
if( pimldp->rgbBk == CLR_NONE )
bIsTransparent = TRUE;
if( ( pimldp->rgbBk == CLR_DEFAULT ) && ( himl->clrBk == CLR_NONE ) )
bIsTransparent = TRUE;
bMask = (himl->flags & ILC_MASK) && (fStyle & ILD_MASK) ;
bBlend = (fStyle & (ILD_BLEND25 | ILD_BLEND50) ) && !bMask;
TRACE("himl(%p) hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
himl, himl->hbmMask, pimldp->i, pimldp->x, pimldp->y, cx, cy);
/* we will use these DCs to access the images and masks in the ImageList */
hImageListDC = himl->hdcImage;
hMaskListDC = himl->hdcMask;
/* these will accumulate the image and mask for the image we're drawing */
hImageDC = CreateCompatibleDC( pimldp->hdcDst );
hImageBmp = CreateCompatibleBitmap( pimldp->hdcDst, cx, cy );
hBlendMaskBmp = bBlend ? CreateBitmap(cx, cy, 1, 1, NULL) : 0;
/* Create a compatible DC. */
if (!hImageListDC || !hImageDC || !hImageBmp ||
(bBlend && !hBlendMaskBmp) || (himl->hbmMask && !hMaskListDC))
goto cleanup;
hOldImageBmp = SelectObject(hImageDC, hImageBmp);
/*
* To obtain a transparent look, background color should be set
* to white and foreground color to black when blitting the
* monochrome mask.
*/
oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
has_alpha = (himl->has_alpha && himl->has_alpha[pimldp->i]);
if (!bMask && (has_alpha || (fState & ILS_ALPHA)))
{
COLORREF colour, blend_col = CLR_NONE;
BLENDFUNCTION func;
if (bBlend)
{
blend_col = pimldp->rgbFg;
if (blend_col == CLR_DEFAULT) blend_col = GetSysColor( COLOR_HIGHLIGHT );
else if (blend_col == CLR_NONE) blend_col = GetTextColor( pimldp->hdcDst );
}
func.BlendOp = AC_SRC_OVER;
func.BlendFlags = 0;
func.SourceConstantAlpha = (fState & ILS_ALPHA) ? pimldp->Frame : 255;
func.AlphaFormat = AC_SRC_ALPHA;
if (bIsTransparent)
{
bResult = alpha_blend_image( himl, pimldp->hdcDst, pimldp->x, pimldp->y,
pt.x, pt.y, cx, cy, func, fStyle, blend_col );
goto end;
}
colour = pimldp->rgbBk;
if (colour == CLR_DEFAULT) colour = himl->clrBk;
if (colour == CLR_NONE) colour = GetBkColor( pimldp->hdcDst );
hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
alpha_blend_image( himl, hImageDC, 0, 0, pt.x, pt.y, cx, cy, func, fStyle, blend_col );
DeleteObject (SelectObject (hImageDC, hOldBrush));
bResult = BitBlt( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCCOPY );
goto end;
}
/*
* Draw the initial image
*/
if( bMask ) {
if (himl->hbmMask) {
hOldBrush = SelectObject (hImageDC, CreateSolidBrush (GetTextColor(pimldp->hdcDst)));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCPAINT);
DeleteObject (SelectObject (hImageDC, hOldBrush));
if( bIsTransparent )
{
BitBlt ( pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, SRCAND);
bResult = TRUE;
goto end;
}
} else {
hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
SelectObject(hImageDC, hOldBrush);
}
} else {
/* blend the image with the needed solid background */
COLORREF colour = RGB(0,0,0);
if( !bIsTransparent )
{
colour = pimldp->rgbBk;
if( colour == CLR_DEFAULT )
colour = himl->clrBk;
if( colour == CLR_NONE )
colour = GetBkColor(pimldp->hdcDst);
}
hOldBrush = SelectObject (hImageDC, CreateSolidBrush (colour));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
if (himl->hbmMask)
{
BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND );
BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCPAINT );
}
else
BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, pt.x, pt.y, SRCCOPY);
DeleteObject (SelectObject (hImageDC, hOldBrush));
}
/* Time for blending, if required */
if (bBlend) {
HBRUSH hBlendBrush;
COLORREF clrBlend = pimldp->rgbFg;
HDC hBlendMaskDC = hImageListDC;
HBITMAP hOldBitmap;
/* Create the blend Mask */
hOldBitmap = SelectObject(hBlendMaskDC, hBlendMaskBmp);
hBlendBrush = fStyle & ILD_BLEND50 ? himl->hbrBlend50 : himl->hbrBlend25;
hOldBrush = SelectObject(hBlendMaskDC, hBlendBrush);
PatBlt(hBlendMaskDC, 0, 0, cx, cy, PATCOPY);
SelectObject(hBlendMaskDC, hOldBrush);
/* Modify the blend mask if an Image Mask exist */
if(himl->hbmMask) {
BitBlt(hBlendMaskDC, 0, 0, cx, cy, hMaskListDC, pt.x, pt.y, 0x220326); /* NOTSRCAND */
BitBlt(hBlendMaskDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, NOTSRCCOPY);
}
/* now apply blend to the current image given the BlendMask */
if (clrBlend == CLR_DEFAULT) clrBlend = GetSysColor (COLOR_HIGHLIGHT);
else if (clrBlend == CLR_NONE) clrBlend = GetTextColor (pimldp->hdcDst);
hOldBrush = SelectObject (hImageDC, CreateSolidBrush(clrBlend));
BitBlt (hImageDC, 0, 0, cx, cy, hBlendMaskDC, 0, 0, 0xB8074A); /* PSDPxax */
DeleteObject(SelectObject(hImageDC, hOldBrush));
SelectObject(hBlendMaskDC, hOldBitmap);
}
/* Now do the overlay image, if any */
nOvlIdx = (pimldp->fStyle & ILD_OVERLAYMASK) >> 8;
if ( (nOvlIdx >= 1) && (nOvlIdx <= MAX_OVERLAYIMAGE)) {
nOvlIdx = himl->nOvlIdx[nOvlIdx - 1];
if ((nOvlIdx >= 0) && (nOvlIdx < himl->cCurImage)) {
POINT ptOvl;
imagelist_point_from_index( himl, nOvlIdx, &ptOvl );
ptOvl.x += pimldp->xBitmap;
if (himl->hbmMask && !(fStyle & ILD_IMAGE))
BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ptOvl.x, ptOvl.y, SRCAND);
BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ptOvl.x, ptOvl.y, SRCPAINT);
}
}
if (fState & ILS_SATURATE) FIXME("ILS_SATURATE: unimplemented!\n");
if (fState & ILS_GLOW) FIXME("ILS_GLOW: unimplemented!\n");
if (fState & ILS_SHADOW) FIXME("ILS_SHADOW: unimplemented!\n");
if (fStyle & ILD_PRESERVEALPHA) FIXME("ILD_PRESERVEALPHA: unimplemented!\n");
if (fStyle & ILD_SCALE) FIXME("ILD_SCALE: unimplemented!\n");
if (fStyle & ILD_DPISCALE) FIXME("ILD_DPISCALE: unimplemented!\n");
/* now copy the image to the screen */
dwRop = SRCCOPY;
if (himl->hbmMask && bIsTransparent ) {
COLORREF oldDstFg = SetTextColor(pimldp->hdcDst, RGB( 0, 0, 0 ) );
COLORREF oldDstBk = SetBkColor(pimldp->hdcDst, RGB( 0xff, 0xff, 0xff ));
BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hMaskListDC, pt.x, pt.y, SRCAND);
SetBkColor(pimldp->hdcDst, oldDstBk);
SetTextColor(pimldp->hdcDst, oldDstFg);
dwRop = SRCPAINT;
}
if (fStyle & ILD_ROP) dwRop = pimldp->dwRop;
BitBlt (pimldp->hdcDst, pimldp->x, pimldp->y, cx, cy, hImageDC, 0, 0, dwRop);
bResult = TRUE;
end:
/* cleanup the mess */
SetBkColor(hImageDC, oldImageBk);
SetTextColor(hImageDC, oldImageFg);
SelectObject(hImageDC, hOldImageBmp);
cleanup:
DeleteObject(hBlendMaskBmp);
DeleteObject(hImageBmp);
DeleteDC(hImageDC);
return bResult;
}
/*************************************************************************
* ImageList_Duplicate [COMCTL32.@]
*
* Duplicates an image list.
*
* PARAMS
* himlSrc [I] source image list handle
*
* RETURNS
* Success: Handle of duplicated image list.
* Failure: NULL
*/
HIMAGELIST WINAPI
ImageList_Duplicate (HIMAGELIST himlSrc)
{
HIMAGELIST himlDst;
if (!is_valid(himlSrc)) {
ERR("Invalid image list handle!\n");
return NULL;
}
himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
himlSrc->cCurImage, himlSrc->cGrow);
if (himlDst)
{
SIZE sz;
imagelist_get_bitmap_size(himlSrc, himlSrc->cCurImage, &sz);
BitBlt (himlDst->hdcImage, 0, 0, sz.cx, sz.cy,
himlSrc->hdcImage, 0, 0, SRCCOPY);
if (himlDst->hbmMask)
BitBlt (himlDst->hdcMask, 0, 0, sz.cx, sz.cy,
himlSrc->hdcMask, 0, 0, SRCCOPY);
himlDst->cCurImage = himlSrc->cCurImage;
himlDst->cMaxImage = himlSrc->cMaxImage;
if (himlSrc->has_alpha && himlDst->has_alpha)
memcpy( himlDst->has_alpha, himlSrc->has_alpha, himlDst->cCurImage );
}
return himlDst;
}
/*************************************************************************
* ImageList_EndDrag [COMCTL32.@]
*
* Finishes a drag operation.
*
* PARAMS
* no Parameters
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
VOID WINAPI
ImageList_EndDrag (void)
{
/* cleanup the InternalDrag struct */
InternalDrag.hwnd = 0;
ImageList_Destroy (InternalDrag.himl);
InternalDrag.himl = 0;
InternalDrag.x= 0;
InternalDrag.y= 0;
InternalDrag.dxHotspot = 0;
InternalDrag.dyHotspot = 0;
InternalDrag.bShow = FALSE;
DeleteObject(InternalDrag.hbmBg);
InternalDrag.hbmBg = 0;
}
/*************************************************************************
* ImageList_GetBkColor [COMCTL32.@]
*
* Returns the background color of an image list.
*
* PARAMS
* himl [I] Image list handle.
*
* RETURNS
* Success: background color
* Failure: CLR_NONE
*/
COLORREF WINAPI
ImageList_GetBkColor (HIMAGELIST himl)
{
return himl ? himl->clrBk : CLR_NONE;
}
/*************************************************************************
* ImageList_GetDragImage [COMCTL32.@]
*
* Returns the handle to the internal drag image list.
*
* PARAMS
* ppt [O] Pointer to the drag position. Can be NULL.
* pptHotspot [O] Pointer to the position of the hot spot. Can be NULL.
*
* RETURNS
* Success: Handle of the drag image list.
* Failure: NULL.
*/
HIMAGELIST WINAPI
ImageList_GetDragImage (POINT *ppt, POINT *pptHotspot)
{
if (is_valid(InternalDrag.himl)) {
if (ppt) {
ppt->x = InternalDrag.x;
ppt->y = InternalDrag.y;
}
if (pptHotspot) {
pptHotspot->x = InternalDrag.dxHotspot;
pptHotspot->y = InternalDrag.dyHotspot;
}
return (InternalDrag.himl);
}
return NULL;
}
/*************************************************************************
* ImageList_GetFlags [COMCTL32.@]
*
* Gets the flags of the specified image list.
*
* PARAMS
* himl [I] Handle to image list
*
* RETURNS
* Image list flags.
*
* BUGS
* Stub.
*/
DWORD WINAPI
ImageList_GetFlags(HIMAGELIST himl)
{
TRACE("%p\n", himl);
return is_valid(himl) ? himl->flags : 0;
}
/*************************************************************************
* ImageList_GetIcon [COMCTL32.@]
*
* Creates an icon from a masked image of an image list.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* flags [I] drawing style flags
*
* RETURNS
* Success: icon handle
* Failure: NULL
*/
HICON WINAPI
ImageList_GetIcon (HIMAGELIST himl, INT i, UINT fStyle)
{
ICONINFO ii;
HICON hIcon;
HBITMAP hOldDstBitmap;
HDC hdcDst;
POINT pt;
TRACE("%p %d %d\n", himl, i, fStyle);
if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
ii.fIcon = TRUE;
ii.xHotspot = 0;
ii.yHotspot = 0;
/* create colour bitmap */
hdcDst = GetDC(0);
ii.hbmColor = CreateCompatibleBitmap(hdcDst, himl->cx, himl->cy);
ReleaseDC(0, hdcDst);
hdcDst = CreateCompatibleDC(0);
imagelist_point_from_index( himl, i, &pt );
/* draw mask*/
ii.hbmMask = CreateBitmap (himl->cx, himl->cy, 1, 1, NULL);
hOldDstBitmap = SelectObject (hdcDst, ii.hbmMask);
if (himl->hbmMask) {
BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
himl->hdcMask, pt.x, pt.y, SRCCOPY);
}
else
PatBlt (hdcDst, 0, 0, himl->cx, himl->cy, BLACKNESS);
/* draw image*/
SelectObject (hdcDst, ii.hbmColor);
BitBlt (hdcDst, 0, 0, himl->cx, himl->cy,
himl->hdcImage, pt.x, pt.y, SRCCOPY);
/*
* CreateIconIndirect requires us to deselect the bitmaps from
* the DCs before calling
*/
SelectObject(hdcDst, hOldDstBitmap);
hIcon = CreateIconIndirect (&ii);
DeleteObject (ii.hbmMask);
DeleteObject (ii.hbmColor);
DeleteDC (hdcDst);
return hIcon;
}
/*************************************************************************
* ImageList_GetIconSize [COMCTL32.@]
*
* Retrieves the size of an image in an image list.
*
* PARAMS
* himl [I] handle to image list
* cx [O] pointer to the image width.
* cy [O] pointer to the image height.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* All images in an image list have the same size.
*/
BOOL WINAPI
ImageList_GetIconSize (HIMAGELIST himl, INT *cx, INT *cy)
{
if (!is_valid(himl) || !cx || !cy)
return FALSE;
if ((himl->cx <= 0) || (himl->cy <= 0))
return FALSE;
*cx = himl->cx;
*cy = himl->cy;
return TRUE;
}
/*************************************************************************
* ImageList_GetImageCount [COMCTL32.@]
*
* Returns the number of images in an image list.
*
* PARAMS
* himl [I] handle to image list
*
* RETURNS
* Success: Number of images.
* Failure: 0
*/
INT WINAPI
ImageList_GetImageCount (HIMAGELIST himl)
{
if (!is_valid(himl))
return 0;
return himl->cCurImage;
}
/*************************************************************************
* ImageList_GetImageInfo [COMCTL32.@]
*
* Returns information about an image in an image list.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* pImageInfo [O] pointer to the image information
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_GetImageInfo (HIMAGELIST himl, INT i, IMAGEINFO *pImageInfo)
{
POINT pt;
if (!is_valid(himl) || (pImageInfo == NULL))
return FALSE;
if ((i < 0) || (i >= himl->cCurImage))
return FALSE;
pImageInfo->hbmImage = himl->hbmImage;
pImageInfo->hbmMask = himl->hbmMask;
imagelist_point_from_index( himl, i, &pt );
pImageInfo->rcImage.top = pt.y;
pImageInfo->rcImage.bottom = pt.y + himl->cy;
pImageInfo->rcImage.left = pt.x;
pImageInfo->rcImage.right = pt.x + himl->cx;
return TRUE;
}
/*************************************************************************
* ImageList_GetImageRect [COMCTL32.@]
*
* Retrieves the rectangle of the specified image in an image list.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* lpRect [O] pointer to the image rectangle
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* This is an UNDOCUMENTED function!!!
*/
BOOL WINAPI
ImageList_GetImageRect (HIMAGELIST himl, INT i, LPRECT lpRect)
{
POINT pt;
if (!is_valid(himl) || (lpRect == NULL))
return FALSE;
if ((i < 0) || (i >= himl->cCurImage))
return FALSE;
imagelist_point_from_index( himl, i, &pt );
lpRect->left = pt.x;
lpRect->top = pt.y;
lpRect->right = pt.x + himl->cx;
lpRect->bottom = pt.y + himl->cy;
return TRUE;
}
/*************************************************************************
* ImageList_LoadImage [COMCTL32.@]
* ImageList_LoadImageA [COMCTL32.@]
*
* Creates an image list from a bitmap, icon or cursor.
*
* See ImageList_LoadImageW.
*/
HIMAGELIST WINAPI
ImageList_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
COLORREF clrMask, UINT uType, UINT uFlags)
{
HIMAGELIST himl;
LPWSTR lpbmpW;
DWORD len;
if (IS_INTRESOURCE(lpbmp))
return ImageList_LoadImageW(hi, (LPCWSTR)lpbmp, cx, cGrow, clrMask,
uType, uFlags);
len = MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, NULL, 0);
lpbmpW = Alloc(len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, lpbmp, -1, lpbmpW, len);
himl = ImageList_LoadImageW(hi, lpbmpW, cx, cGrow, clrMask, uType, uFlags);
Free (lpbmpW);
return himl;
}
/*************************************************************************
* ImageList_LoadImageW [COMCTL32.@]
*
* Creates an image list from a bitmap, icon or cursor.
*
* PARAMS
* hi [I] instance handle
* lpbmp [I] name or id of the image
* cx [I] width of each image
* cGrow [I] number of images to expand
* clrMask [I] mask color
* uType [I] type of image to load
* uFlags [I] loading flags
*
* RETURNS
* Success: handle to the loaded image list
* Failure: NULL
*
* SEE
* LoadImage ()
*/
HIMAGELIST WINAPI
ImageList_LoadImageW (HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow,
COLORREF clrMask, UINT uType, UINT uFlags)
{
HIMAGELIST himl = NULL;
HANDLE handle;
INT nImageCount;
handle = LoadImageW (hi, lpbmp, uType, 0, 0, uFlags);
if (!handle) {
WARN("Couldn't load image\n");
return NULL;
}
if (uType == IMAGE_BITMAP) {
DIBSECTION dib;
UINT color;
if (GetObjectW (handle, sizeof(dib), &dib) == sizeof(BITMAP)) color = ILC_COLOR;
else color = dib.dsBm.bmBitsPixel;
/* To match windows behavior, if cx is set to zero and
the flag DI_DEFAULTSIZE is specified, cx becomes the
system metric value for icons. If the flag is not specified
the function sets the size to the height of the bitmap */
if (cx == 0)
{
if (uFlags & DI_DEFAULTSIZE)
cx = GetSystemMetrics (SM_CXICON);
else
cx = dib.dsBm.bmHeight;
}
nImageCount = dib.dsBm.bmWidth / cx;
himl = ImageList_Create (cx, dib.dsBm.bmHeight, ILC_MASK | color, nImageCount, cGrow);
if (!himl) {
DeleteObject (handle);
return NULL;
}
ImageList_AddMasked (himl, handle, clrMask);
}
else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
ICONINFO ii;
BITMAP bmp;
GetIconInfo (handle, &ii);
GetObjectW (ii.hbmColor, sizeof(BITMAP), &bmp);
himl = ImageList_Create (bmp.bmWidth, bmp.bmHeight,
ILC_MASK | ILC_COLOR, 1, cGrow);
if (!himl) {
DeleteObject (ii.hbmColor);
DeleteObject (ii.hbmMask);
DeleteObject (handle);
return NULL;
}
ImageList_Add (himl, ii.hbmColor, ii.hbmMask);
DeleteObject (ii.hbmColor);
DeleteObject (ii.hbmMask);
}
DeleteObject (handle);
return himl;
}
/*************************************************************************
* ImageList_Merge [COMCTL32.@]
*
* Create an image list containing a merged image from two image lists.
*
* PARAMS
* himl1 [I] handle to first image list
* i1 [I] first image index
* himl2 [I] handle to second image list
* i2 [I] second image index
* dx [I] X offset of the second image relative to the first.
* dy [I] Y offset of the second image relative to the first.
*
* RETURNS
* Success: The newly created image list. It contains a single image
* consisting of the second image merged with the first.
* Failure: NULL, if either himl1 or himl2 are invalid.
*
* NOTES
* - The returned image list should be deleted by the caller using
* ImageList_Destroy() when it is no longer required.
* - If either i1 or i2 are not valid image indices they will be treated
* as a blank image.
*/
HIMAGELIST WINAPI
ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
INT dx, INT dy)
{
HIMAGELIST himlDst = NULL;
INT cxDst, cyDst;
INT xOff1, yOff1, xOff2, yOff2;
POINT pt1, pt2;
TRACE("(himl1=%p i1=%d himl2=%p i2=%d dx=%d dy=%d)\n", himl1, i1, himl2,
i2, dx, dy);
if (!is_valid(himl1) || !is_valid(himl2))
return NULL;
if (dx > 0) {
cxDst = max (himl1->cx, dx + himl2->cx);
xOff1 = 0;
xOff2 = dx;
}
else if (dx < 0) {
cxDst = max (himl2->cx, himl1->cx - dx);
xOff1 = -dx;
xOff2 = 0;
}
else {
cxDst = max (himl1->cx, himl2->cx);
xOff1 = 0;
xOff2 = 0;
}
if (dy > 0) {
cyDst = max (himl1->cy, dy + himl2->cy);
yOff1 = 0;
yOff2 = dy;
}
else if (dy < 0) {
cyDst = max (himl2->cy, himl1->cy - dy);
yOff1 = -dy;
yOff2 = 0;
}
else {
cyDst = max (himl1->cy, himl2->cy);
yOff1 = 0;
yOff2 = 0;
}
himlDst = ImageList_Create (cxDst, cyDst, ILC_MASK | ILC_COLOR, 1, 1);
if (himlDst)
{
imagelist_point_from_index( himl1, i1, &pt1 );
imagelist_point_from_index( himl2, i2, &pt2 );
/* copy image */
BitBlt (himlDst->hdcImage, 0, 0, cxDst, cyDst, himl1->hdcImage, 0, 0, BLACKNESS);
if (i1 >= 0 && i1 < himl1->cCurImage)
BitBlt (himlDst->hdcImage, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcImage, pt1.x, pt1.y, SRCCOPY);
if (i2 >= 0 && i2 < himl2->cCurImage)
{
BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask , pt2.x, pt2.y, SRCAND);
BitBlt (himlDst->hdcImage, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcImage, pt2.x, pt2.y, SRCPAINT);
}
/* copy mask */
BitBlt (himlDst->hdcMask, 0, 0, cxDst, cyDst, himl1->hdcMask, 0, 0, WHITENESS);
if (i1 >= 0 && i1 < himl1->cCurImage)
BitBlt (himlDst->hdcMask, xOff1, yOff1, himl1->cx, himl1->cy, himl1->hdcMask, pt1.x, pt1.y, SRCCOPY);
if (i2 >= 0 && i2 < himl2->cCurImage)
BitBlt (himlDst->hdcMask, xOff2, yOff2, himl2->cx, himl2->cy, himl2->hdcMask, pt2.x, pt2.y, SRCAND);
himlDst->cCurImage = 1;
}
return himlDst;
}
/***********************************************************************
* DIB_GetDIBWidthBytes
*
* Return the width of a DIB bitmap in bytes. DIB bitmap data is 32-bit aligned.
*/
static int DIB_GetDIBWidthBytes( int width, int depth )
{
int words;
switch(depth)
{
case 1: words = (width + 31) / 32; break;
case 4: words = (width + 7) / 8; break;
case 8: words = (width + 3) / 4; break;
case 15:
case 16: words = (width + 1) / 2; break;
case 24: words = (width * 3 + 3)/4; break;
default:
WARN("(%d): Unsupported depth\n", depth );
/* fall through */
case 32:
words = width;
break;
}
return 4 * words;
}
/***********************************************************************
* DIB_GetDIBImageBytes
*
* Return the number of bytes used to hold the image in a DIB bitmap.
*/
static int DIB_GetDIBImageBytes( int width, int height, int depth )
{
return DIB_GetDIBWidthBytes( width, depth ) * abs( height );
}
/* helper for ImageList_Read, see comments below */
static BOOL _read_bitmap(HDC hdcIml, LPSTREAM pstm)
{
BITMAPFILEHEADER bmfh;
int bitsperpixel, palspace;
char bmi_buf[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 256];
LPBITMAPINFO bmi = (LPBITMAPINFO)bmi_buf;
int result = FALSE;
LPBYTE bits = NULL;
if (FAILED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)))
return FALSE;
if (bmfh.bfType != (('M'<<8)|'B'))
return FALSE;
if (FAILED(IStream_Read ( pstm, &bmi->bmiHeader, sizeof(bmi->bmiHeader), NULL)))
return FALSE;
if ((bmi->bmiHeader.biSize != sizeof(bmi->bmiHeader)))
return FALSE;
TRACE("width %u, height %u, planes %u, bpp %u\n",
bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
bmi->bmiHeader.biPlanes, bmi->bmiHeader.biBitCount);
bitsperpixel = bmi->bmiHeader.biPlanes * bmi->bmiHeader.biBitCount;
if (bitsperpixel<=8)
palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
else
palspace = 0;
bmi->bmiHeader.biSizeImage = DIB_GetDIBImageBytes(bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight, bitsperpixel);
/* read the palette right after the end of the bitmapinfoheader */
if (palspace && FAILED(IStream_Read(pstm, bmi->bmiColors, palspace, NULL)))
goto error;
bits = Alloc(bmi->bmiHeader.biSizeImage);
if (!bits)
goto error;
if (FAILED(IStream_Read(pstm, bits, bmi->bmiHeader.biSizeImage, NULL)))
goto error;
if (!StretchDIBits(hdcIml, 0, 0, bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
0, 0, bmi->bmiHeader.biWidth, bmi->bmiHeader.biHeight,
bits, bmi, DIB_RGB_COLORS, SRCCOPY))
goto error;
result = TRUE;
error:
Free(bits);
return result;
}
/*************************************************************************
* ImageList_Read [COMCTL32.@]
*
* Reads an image list from a stream.
*
* PARAMS
* pstm [I] pointer to a stream
*
* RETURNS
* Success: handle to image list
* Failure: NULL
*
* The format is like this:
* ILHEAD ilheadstruct;
*
* for the color image part:
* BITMAPFILEHEADER bmfh;
* BITMAPINFOHEADER bmih;
* only if it has a palette:
* RGBQUAD rgbs[nr_of_paletted_colors];
*
* BYTE colorbits[imagesize];
*
* the following only if the ILC_MASK bit is set in ILHEAD.ilFlags:
* BITMAPFILEHEADER bmfh_mask;
* BITMAPINFOHEADER bmih_mask;
* only if it has a palette (it usually does not):
* RGBQUAD rgbs[nr_of_paletted_colors];
*
* BYTE maskbits[imagesize];
*/
HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
{
ILHEAD ilHead;
HIMAGELIST himl;
int i;
TRACE("%p\n", pstm);
if (FAILED(IStream_Read (pstm, &ilHead, sizeof(ILHEAD), NULL)))
return NULL;
if (ilHead.usMagic != (('L' << 8) | 'I'))
return NULL;
if (ilHead.usVersion != 0x101) /* probably version? */
return NULL;
TRACE("cx %u, cy %u, flags 0x%04x, cCurImage %u, cMaxImage %u\n",
ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
himl = ImageList_Create(ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
if (!himl)
return NULL;
if (!_read_bitmap(himl->hdcImage, pstm))
{
WARN("failed to read bitmap from stream\n");
return NULL;
}
if (ilHead.flags & ILC_MASK)
{
if (!_read_bitmap(himl->hdcMask, pstm))
{
WARN("failed to read mask bitmap from stream\n");
return NULL;
}
}
himl->cCurImage = ilHead.cCurImage;
himl->cMaxImage = ilHead.cMaxImage;
ImageList_SetBkColor(himl,ilHead.bkcolor);
for (i=0;i<4;i++)
ImageList_SetOverlayImage(himl,ilHead.ovls[i],i+1);
return himl;
}
/*************************************************************************
* ImageList_Remove [COMCTL32.@]
*
* Removes an image from an image list
*
* PARAMS
* himl [I] image list handle
* i [I] image index
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* FIXME: as the image list storage test shows, native comctl32 simply shifts
* images without creating a new bitmap.
*/
BOOL WINAPI
ImageList_Remove (HIMAGELIST himl, INT i)
{
HBITMAP hbmNewImage, hbmNewMask;
HDC hdcBmp;
SIZE sz;
TRACE("(himl=%p i=%d)\n", himl, i);
if (!is_valid(himl)) {
ERR("Invalid image list handle!\n");
return FALSE;
}
if ((i < -1) || (i >= himl->cCurImage)) {
TRACE("index out of range! %d\n", i);
return FALSE;
}
if (i == -1) {
INT nCount;
/* remove all */
if (himl->cCurImage == 0) {
/* remove all on empty ImageList is allowed */
TRACE("remove all on empty ImageList!\n");
return TRUE;
}
himl->cMaxImage = himl->cInitial + himl->cGrow - 1;
himl->cCurImage = 0;
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
SelectObject (himl->hdcImage, hbmNewImage);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewImage;
if (himl->hbmMask) {
imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
SelectObject (himl->hdcMask, hbmNewMask);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewMask;
}
}
else {
/* delete one image */
TRACE("Remove single image! %d\n", i);
/* create new bitmap(s) */
TRACE(" - Number of images: %d / %d (Old/New)\n",
himl->cCurImage, himl->cCurImage - 1);
hbmNewImage = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz );
if (himl->hbmMask)
hbmNewMask = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
else
hbmNewMask = 0; /* Just to keep compiler happy! */
hdcBmp = CreateCompatibleDC (0);
/* copy all images and masks prior to the "removed" image */
if (i > 0) {
TRACE("Pre image copy: Copy %d images\n", i);
SelectObject (hdcBmp, hbmNewImage);
imagelist_copy_images( himl, himl->hdcImage, hdcBmp, 0, i, 0 );
if (himl->hbmMask) {
SelectObject (hdcBmp, hbmNewMask);
imagelist_copy_images( himl, himl->hdcMask, hdcBmp, 0, i, 0 );
}
}
/* copy all images and masks behind the removed image */
if (i < himl->cCurImage - 1) {
TRACE("Post image copy!\n");
SelectObject (hdcBmp, hbmNewImage);
imagelist_copy_images( himl, himl->hdcImage, hdcBmp, i + 1,
(himl->cCurImage - i), i );
if (himl->hbmMask) {
SelectObject (hdcBmp, hbmNewMask);
imagelist_copy_images( himl, himl->hdcMask, hdcBmp, i + 1,
(himl->cCurImage - i), i );
}
}
DeleteDC (hdcBmp);
/* delete old images and insert new ones */
SelectObject (himl->hdcImage, hbmNewImage);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewImage;
if (himl->hbmMask) {
SelectObject (himl->hdcMask, hbmNewMask);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewMask;
}
himl->cCurImage--;
}
return TRUE;
}
/*************************************************************************
* ImageList_Replace [COMCTL32.@]
*
* Replaces an image in an image list with a new image.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* hbmImage [I] handle to image bitmap
* hbmMask [I] handle to mask bitmap. Can be NULL.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_Replace (HIMAGELIST himl, INT i, HBITMAP hbmImage,
HBITMAP hbmMask)
{
HDC hdcImage;
BITMAP bmp;
POINT pt;
TRACE("%p %d %p %p\n", himl, i, hbmImage, hbmMask);
if (!is_valid(himl)) {
ERR("Invalid image list handle!\n");
return FALSE;
}
if ((i >= himl->cMaxImage) || (i < 0)) {
ERR("Invalid image index!\n");
return FALSE;
}
if (!GetObjectW(hbmImage, sizeof(BITMAP), &bmp))
return FALSE;
hdcImage = CreateCompatibleDC (0);
/* Replace Image */
SelectObject (hdcImage, hbmImage);
if (add_with_alpha( himl, hdcImage, i, 1, bmp.bmWidth, bmp.bmHeight, hbmImage, hbmMask ))
goto done;
imagelist_point_from_index(himl, i, &pt);
StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
if (himl->hbmMask)
{
HDC hdcTemp;
HBITMAP hOldBitmapTemp;
hdcTemp = CreateCompatibleDC(0);
hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
hdcTemp, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
SelectObject(hdcTemp, hOldBitmapTemp);
DeleteDC(hdcTemp);
/* Remove the background from the image
*/
BitBlt (himl->hdcImage, pt.x, pt.y, bmp.bmWidth, bmp.bmHeight,
himl->hdcMask, pt.x, pt.y, 0x220326); /* NOTSRCAND */
}
done:
DeleteDC (hdcImage);
return TRUE;
}
/*************************************************************************
* ImageList_ReplaceIcon [COMCTL32.@]
*
* Replaces an image in an image list using an icon.
*
* PARAMS
* himl [I] handle to image list
* i [I] image index
* hIcon [I] handle to icon
*
* RETURNS
* Success: index of the replaced image
* Failure: -1
*/
INT WINAPI
ImageList_ReplaceIcon (HIMAGELIST himl, INT nIndex, HICON hIcon)
{
HDC hdcImage;
HICON hBestFitIcon;
ICONINFO ii;
BITMAP bmp;
BOOL ret;
POINT pt;
TRACE("(%p %d %p)\n", himl, nIndex, hIcon);
if (!is_valid(himl)) {
ERR("invalid image list\n");
return -1;
}
if ((nIndex >= himl->cMaxImage) || (nIndex < -1)) {
ERR("invalid image index %d / %d\n", nIndex, himl->cMaxImage);
return -1;
}
hBestFitIcon = CopyImage(
hIcon, IMAGE_ICON,
himl->cx, himl->cy,
LR_COPYFROMRESOURCE);
/* the above will fail if the icon wasn't loaded from a resource, so try
* again without LR_COPYFROMRESOURCE flag */
if (!hBestFitIcon)
hBestFitIcon = CopyImage(
hIcon, IMAGE_ICON,
himl->cx, himl->cy,
0);
if (!hBestFitIcon)
return -1;
ret = GetIconInfo (hBestFitIcon, &ii);
if (!ret) {
DestroyIcon(hBestFitIcon);
return -1;
}
ret = GetObjectW (ii.hbmMask, sizeof(BITMAP), &bmp);
if (!ret) {
ERR("couldn't get mask bitmap info\n");
if (ii.hbmColor)
DeleteObject (ii.hbmColor);
if (ii.hbmMask)
DeleteObject (ii.hbmMask);
DestroyIcon(hBestFitIcon);
return -1;
}
if (nIndex == -1) {
if (himl->cCurImage + 1 > himl->cMaxImage)
IMAGELIST_InternalExpandBitmaps(himl, 1);
nIndex = himl->cCurImage;
himl->cCurImage++;
}
hdcImage = CreateCompatibleDC (0);
TRACE("hdcImage=%p\n", hdcImage);
if (hdcImage == 0)
ERR("invalid hdcImage!\n");
if (himl->has_alpha)
{
if (!ii.hbmColor)
{
UINT height = bmp.bmHeight / 2;
HDC hdcMask = CreateCompatibleDC( 0 );
HBITMAP color = CreateBitmap( bmp.bmWidth, height, 1, 1, NULL );
SelectObject( hdcImage, color );
SelectObject( hdcMask, ii.hbmMask );
BitBlt( hdcImage, 0, 0, bmp.bmWidth, height, hdcMask, 0, height, SRCCOPY );
ret = add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, height, color, ii.hbmMask );
DeleteDC( hdcMask );
DeleteObject( color );
if (ret) goto done;
}
else if (add_with_alpha( himl, hdcImage, nIndex, 1, bmp.bmWidth, bmp.bmHeight,
ii.hbmColor, ii.hbmMask )) goto done;
}
imagelist_point_from_index(himl, nIndex, &pt);
SetTextColor(himl->hdcImage, RGB(0,0,0));
SetBkColor (himl->hdcImage, RGB(255,255,255));
if (ii.hbmColor)
{
SelectObject (hdcImage, ii.hbmColor);
StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
if (himl->hbmMask)
{
SelectObject (hdcImage, ii.hbmMask);
StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
}
}
else
{
UINT height = bmp.bmHeight / 2;
SelectObject (hdcImage, ii.hbmMask);
StretchBlt (himl->hdcImage, pt.x, pt.y, himl->cx, himl->cy,
hdcImage, 0, height, bmp.bmWidth, height, SRCCOPY);
if (himl->hbmMask)
StretchBlt (himl->hdcMask, pt.x, pt.y, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, height, SRCCOPY);
}
done:
DestroyIcon(hBestFitIcon);
if (hdcImage)
DeleteDC (hdcImage);
if (ii.hbmColor)
DeleteObject (ii.hbmColor);
if (ii.hbmMask)
DeleteObject (ii.hbmMask);
TRACE("Insert index = %d, himl->cCurImage = %d\n", nIndex, himl->cCurImage);
return nIndex;
}
/*************************************************************************
* ImageList_SetBkColor [COMCTL32.@]
*
* Sets the background color of an image list.
*
* PARAMS
* himl [I] handle to image list
* clrBk [I] background color
*
* RETURNS
* Success: previous background color
* Failure: CLR_NONE
*/
COLORREF WINAPI
ImageList_SetBkColor (HIMAGELIST himl, COLORREF clrBk)
{
COLORREF clrOldBk;
if (!is_valid(himl))
return CLR_NONE;
clrOldBk = himl->clrBk;
himl->clrBk = clrBk;
return clrOldBk;
}
/*************************************************************************
* ImageList_SetDragCursorImage [COMCTL32.@]
*
* Combines the specified image with the current drag image
*
* PARAMS
* himlDrag [I] handle to drag image list
* iDrag [I] drag image index
* dxHotspot [I] X position of the hot spot
* dyHotspot [I] Y position of the hot spot
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* NOTES
* - The names dxHotspot, dyHotspot are misleading because they have nothing
* to do with a hotspot but are only the offset of the origin of the new
* image relative to the origin of the old image.
*
* - When this function is called and the drag image is visible, a
* short flickering occurs but this matches the Win9x behavior. It is
* possible to fix the flickering using code like in ImageList_DragMove.
*/
BOOL WINAPI
ImageList_SetDragCursorImage (HIMAGELIST himlDrag, INT iDrag,
INT dxHotspot, INT dyHotspot)
{
HIMAGELIST himlTemp;
BOOL visible;
if (!is_valid(InternalDrag.himl) || !is_valid(himlDrag))
return FALSE;
TRACE(" dxH=%d dyH=%d nX=%d nY=%d\n",
dxHotspot, dyHotspot, InternalDrag.dxHotspot, InternalDrag.dyHotspot);
visible = InternalDrag.bShow;
himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag,
dxHotspot, dyHotspot);
if (visible) {
/* hide the drag image */
ImageList_DragShowNolock(FALSE);
}
if ((InternalDrag.himl->cx != himlTemp->cx) ||
(InternalDrag.himl->cy != himlTemp->cy)) {
/* the size of the drag image changed, invalidate the buffer */
DeleteObject(InternalDrag.hbmBg);
InternalDrag.hbmBg = 0;
}
ImageList_Destroy (InternalDrag.himl);
InternalDrag.himl = himlTemp;
if (visible) {
/* show the drag image */
ImageList_DragShowNolock(TRUE);
}
return TRUE;
}
/*************************************************************************
* ImageList_SetFilter [COMCTL32.@]
*
* Sets a filter (or does something completely different)!!???
* It removes 12 Bytes from the stack (3 Parameters).
*
* PARAMS
* himl [I] SHOULD be a handle to image list
* i [I] COULD be an index?
* dwFilter [I] ???
*
* RETURNS
* Success: TRUE ???
* Failure: FALSE ???
*
* BUGS
* This is an UNDOCUMENTED function!!!!
* empty stub.
*/
BOOL WINAPI
ImageList_SetFilter (HIMAGELIST himl, INT i, DWORD dwFilter)
{
FIXME("(%p 0x%x 0x%x):empty stub!\n", himl, i, dwFilter);
return FALSE;
}
/*************************************************************************
* ImageList_SetFlags [COMCTL32.@]
*
* Sets the image list flags.
*
* PARAMS
* himl [I] Handle to image list
* flags [I] Flags to set
*
* RETURNS
* Old flags?
*
* BUGS
* Stub.
*/
DWORD WINAPI
ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
{
FIXME("(%p %08x):empty stub\n", himl, flags);
return 0;
}
/*************************************************************************
* ImageList_SetIconSize [COMCTL32.@]
*
* Sets the image size of the bitmap and deletes all images.
*
* PARAMS
* himl [I] handle to image list
* cx [I] image width
* cy [I] image height
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_SetIconSize (HIMAGELIST himl, INT cx, INT cy)
{
INT nCount;
HBITMAP hbmNew;
if (!is_valid(himl))
return FALSE;
/* remove all images */
himl->cMaxImage = himl->cInitial + 1;
himl->cCurImage = 0;
himl->cx = cx;
himl->cy = cy;
/* initialize overlay mask indices */
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
hbmNew = ImageList_CreateImage(himl->hdcImage, himl, himl->cMaxImage);
SelectObject (himl->hdcImage, hbmNew);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNew;
if (himl->hbmMask) {
SIZE sz;
imagelist_get_bitmap_size(himl, himl->cMaxImage, &sz);
hbmNew = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
SelectObject (himl->hdcMask, hbmNew);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNew;
}
return TRUE;
}
/*************************************************************************
* ImageList_SetImageCount [COMCTL32.@]
*
* Resizes an image list to the specified number of images.
*
* PARAMS
* himl [I] handle to image list
* iImageCount [I] number of images in the image list
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_SetImageCount (HIMAGELIST himl, UINT iImageCount)
{
HDC hdcBitmap;
HBITMAP hbmNewBitmap, hbmOld;
INT nNewCount, nCopyCount;
TRACE("%p %d\n",himl,iImageCount);
if (!is_valid(himl))
return FALSE;
if (himl->cMaxImage > iImageCount)
{
himl->cCurImage = iImageCount;
/* TODO: shrink the bitmap when cMaxImage-cCurImage>cGrow ? */
return TRUE;
}
nNewCount = iImageCount + himl->cGrow;
nCopyCount = min(himl->cCurImage, iImageCount);
hdcBitmap = CreateCompatibleDC (0);
hbmNewBitmap = ImageList_CreateImage(hdcBitmap, himl, nNewCount);
if (hbmNewBitmap != 0)
{
hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
imagelist_copy_images( himl, himl->hdcImage, hdcBitmap, 0, nCopyCount, 0 );
SelectObject (hdcBitmap, hbmOld);
/* FIXME: delete 'empty' image space? */
SelectObject (himl->hdcImage, hbmNewBitmap);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewBitmap;
}
else
ERR("Could not create new image bitmap !\n");
if (himl->hbmMask)
{
SIZE sz;
imagelist_get_bitmap_size( himl, nNewCount, &sz );
hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, 1, NULL);
if (hbmNewBitmap != 0)
{
hbmOld = SelectObject (hdcBitmap, hbmNewBitmap);
imagelist_copy_images( himl, himl->hdcMask, hdcBitmap, 0, nCopyCount, 0 );
SelectObject (hdcBitmap, hbmOld);
/* FIXME: delete 'empty' image space? */
SelectObject (himl->hdcMask, hbmNewBitmap);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewBitmap;
}
else
ERR("Could not create new mask bitmap!\n");
}
DeleteDC (hdcBitmap);
if (himl->has_alpha)
{
char *new_alpha = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, himl->has_alpha, nNewCount );
if (new_alpha) himl->has_alpha = new_alpha;
else
{
HeapFree( GetProcessHeap(), 0, himl->has_alpha );
himl->has_alpha = NULL;
}
}
/* Update max image count and current image count */
himl->cMaxImage = nNewCount;
himl->cCurImage = iImageCount;
return TRUE;
}
/*************************************************************************
* ImageList_SetOverlayImage [COMCTL32.@]
*
* Assigns an overlay mask index to an existing image in an image list.
*
* PARAMS
* himl [I] handle to image list
* iImage [I] image index
* iOverlay [I] overlay mask index
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_SetOverlayImage (HIMAGELIST himl, INT iImage, INT iOverlay)
{
if (!is_valid(himl))
return FALSE;
if ((iOverlay < 1) || (iOverlay > MAX_OVERLAYIMAGE))
return FALSE;
if ((iImage!=-1) && ((iImage < 0) || (iImage > himl->cCurImage)))
return FALSE;
himl->nOvlIdx[iOverlay - 1] = iImage;
return TRUE;
}
/* helper for ImageList_Write - write bitmap to pstm
* currently everything is written as 24 bit RGB, except masks
*/
static BOOL
_write_bitmap(HBITMAP hBitmap, LPSTREAM pstm)
{
LPBITMAPFILEHEADER bmfh;
LPBITMAPINFOHEADER bmih;
LPBYTE data = NULL, lpBits;
BITMAP bm;
INT bitCount, sizeImage, offBits, totalSize;
HDC xdc;
BOOL result = FALSE;
if (!GetObjectW(hBitmap, sizeof(BITMAP), &bm))
return FALSE;
bitCount = bm.bmBitsPixel == 1 ? 1 : 24;
sizeImage = DIB_GetDIBImageBytes(bm.bmWidth, bm.bmHeight, bitCount);
totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
if(bitCount != 24)
totalSize += (1 << bitCount) * sizeof(RGBQUAD);
offBits = totalSize;
totalSize += sizeImage;
data = Alloc(totalSize);
bmfh = (LPBITMAPFILEHEADER)data;
bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
lpBits = data + offBits;
/* setup BITMAPFILEHEADER */
bmfh->bfType = (('M' << 8) | 'B');
bmfh->bfSize = offBits;
bmfh->bfReserved1 = 0;
bmfh->bfReserved2 = 0;
bmfh->bfOffBits = offBits;
/* setup BITMAPINFOHEADER */
bmih->biSize = sizeof(BITMAPINFOHEADER);
bmih->biWidth = bm.bmWidth;
bmih->biHeight = bm.bmHeight;
bmih->biPlanes = 1;
bmih->biBitCount = bitCount;
bmih->biCompression = BI_RGB;
bmih->biSizeImage = sizeImage;
bmih->biXPelsPerMeter = 0;
bmih->biYPelsPerMeter = 0;
bmih->biClrUsed = 0;
bmih->biClrImportant = 0;
xdc = GetDC(0);
result = GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBits, (BITMAPINFO *)bmih, DIB_RGB_COLORS) == bm.bmHeight;
ReleaseDC(0, xdc);
if (!result)
goto failed;
TRACE("width %u, height %u, planes %u, bpp %u\n",
bmih->biWidth, bmih->biHeight,
bmih->biPlanes, bmih->biBitCount);
if(bitCount == 1) {
/* Hack. */
LPBITMAPINFO inf = (LPBITMAPINFO)bmih;
inf->bmiColors[0].rgbRed = inf->bmiColors[0].rgbGreen = inf->bmiColors[0].rgbBlue = 0;
inf->bmiColors[1].rgbRed = inf->bmiColors[1].rgbGreen = inf->bmiColors[1].rgbBlue = 0xff;
}
if(FAILED(IStream_Write(pstm, data, totalSize, NULL)))
goto failed;
result = TRUE;
failed:
Free(data);
return result;
}
/*************************************************************************
* ImageList_Write [COMCTL32.@]
*
* Writes an image list to a stream.
*
* PARAMS
* himl [I] handle to image list
* pstm [O] Pointer to a stream.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* BUGS
* probably.
*/
BOOL WINAPI
ImageList_Write (HIMAGELIST himl, LPSTREAM pstm)
{
ILHEAD ilHead;
int i;
TRACE("%p %p\n", himl, pstm);
if (!is_valid(himl))
return FALSE;
ilHead.usMagic = (('L' << 8) | 'I');
ilHead.usVersion = 0x101;
ilHead.cCurImage = himl->cCurImage;
ilHead.cMaxImage = himl->cMaxImage;
ilHead.cGrow = himl->cGrow;
ilHead.cx = himl->cx;
ilHead.cy = himl->cy;
ilHead.bkcolor = himl->clrBk;
ilHead.flags = himl->flags;
for(i = 0; i < 4; i++) {
ilHead.ovls[i] = himl->nOvlIdx[i];
}
TRACE("cx %u, cy %u, flags 0x04%x, cCurImage %u, cMaxImage %u\n",
ilHead.cx, ilHead.cy, ilHead.flags, ilHead.cCurImage, ilHead.cMaxImage);
if(FAILED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
return FALSE;
/* write the bitmap */
if(!_write_bitmap(himl->hbmImage, pstm))
return FALSE;
/* write the mask if we have one */
if(himl->flags & ILC_MASK) {
if(!_write_bitmap(himl->hbmMask, pstm))
return FALSE;
}
return TRUE;
}
static HBITMAP ImageList_CreateImage(HDC hdc, HIMAGELIST himl, UINT count)
{
HBITMAP hbmNewBitmap;
UINT ilc = (himl->flags & 0xFE);
SIZE sz;
imagelist_get_bitmap_size( himl, count, &sz );
if ((ilc >= ILC_COLOR4 && ilc <= ILC_COLOR32) || ilc == ILC_COLOR)
{
VOID* bits;
BITMAPINFO *bmi;
TRACE("Creating DIBSection %d x %d, %d Bits per Pixel\n",
sz.cx, sz.cy, himl->uBitsPixel);
if (himl->uBitsPixel <= ILC_COLOR8)
{
LPPALETTEENTRY pal;
ULONG i, colors;
BYTE temp;
colors = 1 << himl->uBitsPixel;
bmi = Alloc(sizeof(BITMAPINFOHEADER) +
sizeof(PALETTEENTRY) * colors);
pal = (LPPALETTEENTRY)bmi->bmiColors;
GetPaletteEntries(GetStockObject(DEFAULT_PALETTE), 0, colors, pal);
/* Swap colors returned by GetPaletteEntries so we can use them for
* CreateDIBSection call. */
for (i = 0; i < colors; i++)
{
temp = pal[i].peBlue;
bmi->bmiColors[i].rgbRed = pal[i].peRed;
bmi->bmiColors[i].rgbBlue = temp;
}
}
else
{
bmi = Alloc(sizeof(BITMAPINFOHEADER));
}
bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi->bmiHeader.biWidth = sz.cx;
bmi->bmiHeader.biHeight = sz.cy;
bmi->bmiHeader.biPlanes = 1;
bmi->bmiHeader.biBitCount = himl->uBitsPixel;
bmi->bmiHeader.biCompression = BI_RGB;
bmi->bmiHeader.biSizeImage = 0;
bmi->bmiHeader.biXPelsPerMeter = 0;
bmi->bmiHeader.biYPelsPerMeter = 0;
bmi->bmiHeader.biClrUsed = 0;
bmi->bmiHeader.biClrImportant = 0;
hbmNewBitmap = CreateDIBSection(hdc, bmi, DIB_RGB_COLORS, &bits, 0, 0);
Free (bmi);
}
else /*if (ilc == ILC_COLORDDB)*/
{
TRACE("Creating Bitmap: %d Bits per Pixel\n", himl->uBitsPixel);
hbmNewBitmap = CreateBitmap (sz.cx, sz.cy, 1, himl->uBitsPixel, NULL);
}
TRACE("returning %p\n", hbmNewBitmap);
return hbmNewBitmap;
}
/*************************************************************************
* ImageList_SetColorTable [COMCTL32.@]
*
* Sets the color table of an image list.
*
* PARAMS
* himl [I] Handle to the image list.
* uStartIndex [I] The first index to set.
* cEntries [I] Number of entries to set.
* prgb [I] New color information for color table for the image list.
*
* RETURNS
* Success: Number of entries in the table that were set.
* Failure: Zero.
*
* SEE
* ImageList_Create(), SetDIBColorTable()
*/
UINT WINAPI
ImageList_SetColorTable (HIMAGELIST himl, UINT uStartIndex, UINT cEntries, CONST RGBQUAD * prgb)
{
return SetDIBColorTable(himl->hdcImage, uStartIndex, cEntries, prgb);
}
/*************************************************************************
* ImageList_CoCreateInstance [COMCTL32.@]
*
* Creates a new imagelist instance and returns an interface pointer to it.
*
* PARAMS
* rclsid [I] A reference to the CLSID (CLSID_ImageList).
* punkOuter [I] Pointer to IUnknown interface for aggregation, if desired
* riid [I] Identifier of the requested interface.
* ppv [O] Returns the address of the pointer requested, or NULL.
*
* RETURNS
* Success: S_OK.
* Failure: Error value.
*/
HRESULT WINAPI
ImageList_CoCreateInstance (REFCLSID rclsid, const IUnknown *punkOuter, REFIID riid, void **ppv)
{
TRACE("(%s,%p,%s,%p)\n", debugstr_guid(rclsid), punkOuter, debugstr_guid(riid), ppv);
if (!IsEqualCLSID(&CLSID_ImageList, rclsid))
return E_NOINTERFACE;
return ImageListImpl_CreateInstance(punkOuter, riid, ppv);
}
/*************************************************************************
* IImageList implementation
*/
static HRESULT WINAPI ImageListImpl_QueryInterface(IImageList *iface,
REFIID iid, void **ppv)
{
HIMAGELIST This = (HIMAGELIST) iface;
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IImageList, iid))
*ppv = This;
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI ImageListImpl_AddRef(IImageList *iface)
{
HIMAGELIST This = (HIMAGELIST) iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI ImageListImpl_Release(IImageList *iface)
{
HIMAGELIST This = (HIMAGELIST) iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
/* delete image bitmaps */
if (This->hbmImage) DeleteObject (This->hbmImage);
if (This->hbmMask) DeleteObject (This->hbmMask);
/* delete image & mask DCs */
if (This->hdcImage) DeleteDC (This->hdcImage);
if (This->hdcMask) DeleteDC (This->hdcMask);
/* delete blending brushes */
if (This->hbrBlend25) DeleteObject (This->hbrBlend25);
if (This->hbrBlend50) DeleteObject (This->hbrBlend50);
This->lpVtbl = NULL;
HeapFree(GetProcessHeap(), 0, This->has_alpha);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI ImageListImpl_Add(IImageList *iface, HBITMAP hbmImage,
HBITMAP hbmMask, int *pi)
{
HIMAGELIST This = (HIMAGELIST) iface;
int ret;
if (!pi)
return E_FAIL;
ret = ImageList_Add(This, hbmImage, hbmMask);
if (ret == -1)
return E_FAIL;
*pi = ret;
return S_OK;
}
static HRESULT WINAPI ImageListImpl_ReplaceIcon(IImageList *iface, int i,
HICON hicon, int *pi)
{
HIMAGELIST This = (HIMAGELIST) iface;
int ret;
if (!pi)
return E_FAIL;
ret = ImageList_ReplaceIcon(This, i, hicon);
if (ret == -1)
return E_FAIL;
*pi = ret;
return S_OK;
}
static HRESULT WINAPI ImageListImpl_SetOverlayImage(IImageList *iface,
int iImage, int iOverlay)
{
return ImageList_SetOverlayImage((HIMAGELIST) iface, iImage, iOverlay)
? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_Replace(IImageList *iface, int i,
HBITMAP hbmImage, HBITMAP hbmMask)
{
return ImageList_Replace((HIMAGELIST) iface, i, hbmImage, hbmMask) ? S_OK :
E_FAIL;
}
static HRESULT WINAPI ImageListImpl_AddMasked(IImageList *iface, HBITMAP hbmImage,
COLORREF crMask, int *pi)
{
HIMAGELIST This = (HIMAGELIST) iface;
int ret;
if (!pi)
return E_FAIL;
ret = ImageList_AddMasked(This, hbmImage, crMask);
if (ret == -1)
return E_FAIL;
*pi = ret;
return S_OK;
}
static HRESULT WINAPI ImageListImpl_Draw(IImageList *iface,
IMAGELISTDRAWPARAMS *pimldp)
{
HIMAGELIST This = (HIMAGELIST) iface;
HIMAGELIST old_himl;
int ret;
/* As far as I can tell, Windows simply ignores the contents of pimldp->himl
so we shall simulate the same */
old_himl = pimldp->himl;
pimldp->himl = This;
ret = ImageList_DrawIndirect(pimldp);
pimldp->himl = old_himl;
return ret ? S_OK : E_INVALIDARG;
}
static HRESULT WINAPI ImageListImpl_Remove(IImageList *iface, int i)
{
return (ImageList_Remove((HIMAGELIST) iface, i) == 0) ? E_INVALIDARG : S_OK;
}
static HRESULT WINAPI ImageListImpl_GetIcon(IImageList *iface, int i, UINT flags,
HICON *picon)
{
HICON hIcon;
if (!picon)
return E_FAIL;
hIcon = ImageList_GetIcon((HIMAGELIST) iface, i, flags);
if (hIcon == NULL)
return E_FAIL;
*picon = hIcon;
return S_OK;
}
static HRESULT WINAPI ImageListImpl_GetImageInfo(IImageList *iface, int i,
IMAGEINFO *pImageInfo)
{
return ImageList_GetImageInfo((HIMAGELIST) iface, i, pImageInfo) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_Copy(IImageList *iface, int iDst,
IUnknown *punkSrc, int iSrc, UINT uFlags)
{
HIMAGELIST This = (HIMAGELIST) iface;
IImageList *src = NULL;
HRESULT ret;
if (!punkSrc)
return E_FAIL;
/* TODO: Add test for IID_ImageList2 too */
if (FAILED(IImageList_QueryInterface(punkSrc, &IID_IImageList,
(void **) &src)))
return E_FAIL;
if (ImageList_Copy(This, iDst, (HIMAGELIST) src, iSrc, uFlags))
ret = S_OK;
else
ret = E_FAIL;
IImageList_Release(src);
return ret;
}
static HRESULT WINAPI ImageListImpl_Merge(IImageList *iface, int i1,
IUnknown *punk2, int i2, int dx, int dy, REFIID riid, void **ppv)
{
HIMAGELIST This = (HIMAGELIST) iface;
IImageList *iml2 = NULL;
HIMAGELIST hNew;
HRESULT ret = E_FAIL;
TRACE("(%p)->(%d %p %d %d %d %s %p)\n", iface, i1, punk2, i2, dx, dy, debugstr_guid(riid), ppv);
/* TODO: Add test for IID_ImageList2 too */
if (FAILED(IImageList_QueryInterface(punk2, &IID_IImageList,
(void **) &iml2)))
return E_FAIL;
hNew = ImageList_Merge(This, i1, (HIMAGELIST) iml2, i2, dx, dy);
/* Get the interface for the new image list */
if (hNew)
ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
IImageList_Release(iml2);
return ret;
}
static HRESULT WINAPI ImageListImpl_Clone(IImageList *iface, REFIID riid, void **ppv)
{
HIMAGELIST This = (HIMAGELIST) iface;
HIMAGELIST clone;
HRESULT ret = E_FAIL;
TRACE("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
clone = ImageList_Duplicate(This);
/* Get the interface for the new image list */
if (clone)
{
IImageList *iclone = (IImageList*)clone;
ret = HIMAGELIST_QueryInterface(clone, riid, ppv);
IImageList_Release(iclone);
}
return ret;
}
static HRESULT WINAPI ImageListImpl_GetImageRect(IImageList *iface, int i,
RECT *prc)
{
HIMAGELIST This = (HIMAGELIST) iface;
IMAGEINFO info;
if (!prc)
return E_FAIL;
if (!ImageList_GetImageInfo(This, i, &info))
return E_FAIL;
return CopyRect(prc, &info.rcImage) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_GetIconSize(IImageList *iface, int *cx,
int *cy)
{
HIMAGELIST This = (HIMAGELIST) iface;
return ImageList_GetIconSize(This, cx, cy) ? S_OK : E_INVALIDARG;
}
static HRESULT WINAPI ImageListImpl_SetIconSize(IImageList *iface, int cx,
int cy)
{
return ImageList_SetIconSize((HIMAGELIST) iface, cx, cy) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_GetImageCount(IImageList *iface, int *pi)
{
*pi = ImageList_GetImageCount((HIMAGELIST) iface);
return S_OK;
}
static HRESULT WINAPI ImageListImpl_SetImageCount(IImageList *iface,
UINT uNewCount)
{
return ImageList_SetImageCount((HIMAGELIST) iface, uNewCount) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_SetBkColor(IImageList *iface, COLORREF clrBk,
COLORREF *pclr)
{
*pclr = ImageList_SetBkColor((HIMAGELIST) iface, clrBk);
return S_OK;
}
static HRESULT WINAPI ImageListImpl_GetBkColor(IImageList *iface, COLORREF *pclr)
{
*pclr = ImageList_GetBkColor((HIMAGELIST) iface);
return S_OK;
}
static HRESULT WINAPI ImageListImpl_BeginDrag(IImageList *iface, int iTrack,
int dxHotspot, int dyHotspot)
{
return ImageList_BeginDrag((HIMAGELIST) iface, iTrack, dxHotspot, dyHotspot) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_EndDrag(IImageList *iface)
{
ImageList_EndDrag();
return S_OK;
}
static HRESULT WINAPI ImageListImpl_DragEnter(IImageList *iface, HWND hwndLock,
int x, int y)
{
return ImageList_DragEnter(hwndLock, x, y) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_DragLeave(IImageList *iface, HWND hwndLock)
{
return ImageList_DragLeave(hwndLock) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_DragMove(IImageList *iface, int x, int y)
{
return ImageList_DragMove(x, y) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_SetDragCursorImage(IImageList *iface,
IUnknown *punk, int iDrag, int dxHotspot, int dyHotspot)
{
IImageList *iml2 = NULL;
HRESULT ret;
if (!punk)
return E_FAIL;
/* TODO: Add test for IID_ImageList2 too */
if (FAILED(IImageList_QueryInterface(punk, &IID_IImageList,
(void **) &iml2)))
return E_FAIL;
ret = ImageList_SetDragCursorImage((HIMAGELIST) iml2, iDrag, dxHotspot,
dyHotspot);
IImageList_Release(iml2);
return ret ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_DragShowNolock(IImageList *iface, BOOL fShow)
{
return ImageList_DragShowNolock(fShow) ? S_OK : E_FAIL;
}
static HRESULT WINAPI ImageListImpl_GetDragImage(IImageList *iface, POINT *ppt,
POINT *pptHotspot, REFIID riid, PVOID *ppv)
{
HRESULT ret = E_FAIL;
HIMAGELIST hNew;
if (!ppv)
return E_FAIL;
hNew = ImageList_GetDragImage(ppt, pptHotspot);
/* Get the interface for the new image list */
if (hNew)
ret = HIMAGELIST_QueryInterface(hNew, riid, ppv);
return ret;
}
static HRESULT WINAPI ImageListImpl_GetItemFlags(IImageList *iface, int i,
DWORD *dwFlags)
{
FIXME("STUB: %p %d %p\n", iface, i, dwFlags);
return E_NOTIMPL;
}
static HRESULT WINAPI ImageListImpl_GetOverlayImage(IImageList *iface, int iOverlay,
int *piIndex)
{
HIMAGELIST This = (HIMAGELIST) iface;
int i;
if ((iOverlay < 0) || (iOverlay > This->cCurImage))
return E_FAIL;
for (i = 0; i < MAX_OVERLAYIMAGE; i++)
{
if (This->nOvlIdx[i] == iOverlay)
{
*piIndex = i + 1;
return S_OK;
}
}
return E_FAIL;
}
static const IImageListVtbl ImageListImpl_Vtbl = {
ImageListImpl_QueryInterface,
ImageListImpl_AddRef,
ImageListImpl_Release,
ImageListImpl_Add,
ImageListImpl_ReplaceIcon,
ImageListImpl_SetOverlayImage,
ImageListImpl_Replace,
ImageListImpl_AddMasked,
ImageListImpl_Draw,
ImageListImpl_Remove,
ImageListImpl_GetIcon,
ImageListImpl_GetImageInfo,
ImageListImpl_Copy,
ImageListImpl_Merge,
ImageListImpl_Clone,
ImageListImpl_GetImageRect,
ImageListImpl_GetIconSize,
ImageListImpl_SetIconSize,
ImageListImpl_GetImageCount,
ImageListImpl_SetImageCount,
ImageListImpl_SetBkColor,
ImageListImpl_GetBkColor,
ImageListImpl_BeginDrag,
ImageListImpl_EndDrag,
ImageListImpl_DragEnter,
ImageListImpl_DragLeave,
ImageListImpl_DragMove,
ImageListImpl_SetDragCursorImage,
ImageListImpl_DragShowNolock,
ImageListImpl_GetDragImage,
ImageListImpl_GetItemFlags,
ImageListImpl_GetOverlayImage
};
static inline BOOL is_valid(HIMAGELIST himl)
{
return himl && himl->lpVtbl == &ImageListImpl_Vtbl;
}
/*************************************************************************
* HIMAGELIST_QueryInterface [COMCTL32.@]
*
* Returns a pointer to an IImageList or IImageList2 object for the given
* HIMAGELIST.
*
* PARAMS
* himl [I] Image list handle.
* riid [I] Identifier of the requested interface.
* ppv [O] Returns the address of the pointer requested, or NULL.
*
* RETURNS
* Success: S_OK.
* Failure: Error value.
*/
HRESULT WINAPI
HIMAGELIST_QueryInterface (HIMAGELIST himl, REFIID riid, void **ppv)
{
TRACE("(%p,%s,%p)\n", himl, debugstr_guid(riid), ppv);
return IImageList_QueryInterface((IImageList *) himl, riid, ppv);
}
static HRESULT ImageListImpl_CreateInstance(const IUnknown *pUnkOuter, REFIID iid, void** ppv)
{
HIMAGELIST This;
HRESULT ret;
TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
*ppv = NULL;
if (pUnkOuter) return CLASS_E_NOAGGREGATION;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct _IMAGELIST));
if (!This) return E_OUTOFMEMORY;
This->lpVtbl = &ImageListImpl_Vtbl;
This->ref = 1;
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);
return ret;
}
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