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521aa7412d
wine/dlls/comctl32/imagelist.c
Duane Clark 521aa7412d Validate imagelists with christmas magic.
2003-01-02 17:51:13 +00:00

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/*
* ImageList implementation
*
* Copyright 1998 Eric Kohl
* Copyright 2000 Jason Mawdsley
* Copyright 2001 Michael Stefaniuc
* Copyright 2001 Charles Loep for CodeWeavers
* Copyright 2002 Dimitrie O. Paun
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 belive 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, ILS_ALPHA
*
* FIXME:
* - Hotspot handling still not correct. The Hotspot passed to BeginDrag
* is the offset of the image position relative to the actual mouse pointer
* position. However the Hotspot passed to SetDragCursorImage is the
* offset of the mouse messages sent to the application...
*/
#include <stdlib.h>
#include <string.h>
#include "winerror.h"
#include "winbase.h"
#include "objbase.h"
#include "commctrl.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;
BOOL bHSPending;
} INTERNALDRAG;
static INTERNALDRAG InternalDrag = { 0, 0, 0, 0, 0, 0, FALSE, 0, FALSE };
static inline BOOL is_valid(HIMAGELIST himl)
{
return himl && himl->magic == IMAGELIST_MAGIC;
}
/*************************************************************************
* 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 can NOT be used to reduce the number of images.
*/
static void
IMAGELIST_InternalExpandBitmaps (HIMAGELIST himl, INT nImageCount, INT cx, INT cy)
{
HDC hdcImageList, hdcBitmap;
HBITMAP hbmNewBitmap;
INT nNewWidth, nNewCount;
if ((himl->cCurImage + nImageCount <= himl->cMaxImage)
&& (himl->cy >= cy))
return;
if (cy == 0) cy = himl->cy;
nNewCount = himl->cCurImage + nImageCount + himl->cGrow;
nNewWidth = nNewCount * himl->cx;
TRACE("Create expanded bitmaps : himl=%p x=%d y=%d count=%d\n", himl, nNewWidth, cy, nNewCount);
hdcImageList = CreateCompatibleDC (0);
hdcBitmap = CreateCompatibleDC (0);
hbmNewBitmap =
CreateBitmap (nNewWidth, cy, 1, himl->uBitsPixel, NULL);
if (hbmNewBitmap == 0)
ERR("creating new image bitmap (x=%d y=%d)!\n", nNewWidth, cy);
SelectObject (hdcImageList, himl->hbmImage);
SelectObject (hdcBitmap, hbmNewBitmap);
BitBlt (hdcBitmap, 0, 0, himl->cCurImage * himl->cx, cy,
hdcImageList, 0, 0, SRCCOPY);
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewBitmap;
if (himl->hbmMask) {
hbmNewBitmap =
CreateBitmap (nNewWidth, cy, 1, 1, NULL);
if (hbmNewBitmap == 0)
ERR("creating new mask bitmap!\n");
SelectObject (hdcImageList, himl->hbmMask);
SelectObject (hdcBitmap, hbmNewBitmap);
BitBlt (hdcBitmap, 0, 0, himl->cCurImage * himl->cx, cy,
hdcImageList, 0, 0, SRCCOPY);
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewBitmap;
}
himl->cMaxImage = nNewCount;
DeleteDC (hdcImageList);
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 hdcImage, hdcBitmap;
INT nFirstIndex, nImageCount;
INT nStartX;
BITMAP bmp;
HBITMAP hOldBitmapImage, hOldBitmap;
TRACE("himl=%p hbmimage=%p hbmmask=%p\n", himl, hbmImage, hbmMask);
if (!is_valid(himl))
return -1;
GetObjectA (hbmImage, sizeof(BITMAP), (LPVOID)&bmp);
nImageCount = bmp.bmWidth / himl->cx;
IMAGELIST_InternalExpandBitmaps (himl, nImageCount, bmp.bmWidth, bmp.bmHeight);
nStartX = himl->cCurImage * himl->cx;
hdcImage = CreateCompatibleDC(0);
hdcBitmap = CreateCompatibleDC(0);
hOldBitmapImage = SelectObject(hdcImage, himl->hbmImage);
hOldBitmap = SelectObject(hdcBitmap, hbmImage);
/* Copy result to the imagelist
*/
BitBlt (hdcImage, nStartX, 0, bmp.bmWidth, bmp.bmHeight,
hdcBitmap, 0, 0, SRCCOPY);
if(himl->hbmMask)
{
HDC hdcMask, hdcTemp;
HBITMAP hOldBitmapMask, hOldBitmapTemp;
hdcMask = CreateCompatibleDC (0);
hdcTemp = CreateCompatibleDC(0);
hOldBitmapMask = SelectObject(hdcMask, himl->hbmMask);
hOldBitmapTemp = SelectObject(hdcTemp, hbmMask);
BitBlt (hdcMask,
nStartX, 0, bmp.bmWidth, bmp.bmHeight,
hdcTemp,
0, 0,
SRCCOPY);
SelectObject(hdcTemp, hOldBitmapTemp);
DeleteDC(hdcTemp);
/* Remove the background from the image
*/
BitBlt (hdcImage,
nStartX, 0, bmp.bmWidth, bmp.bmHeight,
hdcMask,
nStartX, 0,
0x220326); /* NOTSRCAND */
SelectObject(hdcMask, hOldBitmapMask);
DeleteDC(hdcMask);
}
SelectObject(hdcImage, hOldBitmapImage);
SelectObject(hdcBitmap, hOldBitmap);
DeleteDC(hdcImage);
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
*/
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 hdcImage, hdcMask, hdcBitmap;
INT nIndex, nImageCount, nMaskXOffset=0;
BITMAP bmp;
HBITMAP hOldBitmap, hOldBitmapMask, hOldBitmapImage;
HBITMAP hMaskBitmap=0;
COLORREF bkColor;
TRACE("himl=%p hbitmap=%p clrmask=%lx\n", himl, hBitmap, clrMask);
if (!is_valid(himl))
return -1;
if (!GetObjectA (hBitmap, sizeof(BITMAP), &bmp))
return -1;
nImageCount = bmp.bmWidth / himl->cx;
IMAGELIST_InternalExpandBitmaps (himl, nImageCount, bmp.bmWidth, bmp.bmHeight);
nIndex = himl->cCurImage;
himl->cCurImage += nImageCount;
hdcMask = CreateCompatibleDC (0);
hdcImage = CreateCompatibleDC(0);
hdcBitmap = CreateCompatibleDC(0);
hOldBitmapImage = SelectObject(hdcImage, himl->hbmImage);
hOldBitmap = SelectObject(hdcBitmap, hBitmap);
if(himl->hbmMask)
{
hOldBitmapMask = SelectObject(hdcMask, himl->hbmMask);
nMaskXOffset = nIndex * himl->cx;
}
else
{
/*
Create a temp Mask so we can remove the background of
the Image (Windows does this even if there is no mask)
*/
hMaskBitmap = CreateBitmap(bmp.bmWidth, bmp.bmHeight, 1, 1, NULL);
hOldBitmapMask = SelectObject(hdcMask, hMaskBitmap);
nMaskXOffset = 0;
}
/* create monochrome image to the mask bitmap */
bkColor = (clrMask != CLR_DEFAULT) ? clrMask :
GetPixel (hdcBitmap, 0, 0);
SetBkColor (hdcBitmap, bkColor);
BitBlt (hdcMask,
nMaskXOffset, 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
*/
BitBlt(hdcBitmap,
0, 0, bmp.bmWidth, bmp.bmHeight,
hdcMask,
nMaskXOffset, 0,
0x220326); /* NOTSRCAND */
/* Copy result to the imagelist
*/
BitBlt (hdcImage,
nIndex * himl->cx, 0, bmp.bmWidth, bmp.bmHeight,
hdcBitmap,
0, 0,
SRCCOPY);
/* Clean up
*/
SelectObject(hdcMask,hOldBitmapMask);
SelectObject(hdcImage, hOldBitmapImage);
SelectObject(hdcBitmap, hOldBitmap);
DeleteDC(hdcMask);
DeleteDC(hdcImage);
DeleteDC(hdcBitmap);
if(!himl->hbmMask)
{
DeleteObject(hMaskBitmap);
}
return nIndex;
}
/*************************************************************************
* 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)
{
HDC hdcSrc, hdcDst;
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;
hdcSrc = CreateCompatibleDC (0);
hdcDst = CreateCompatibleDC (0);
/* copy image */
SelectObject (hdcSrc, himlTrack->hbmImage);
SelectObject (hdcDst, InternalDrag.himl->hbmImage);
BitBlt (hdcDst, 0, 0, cx, cy, hdcSrc, iTrack * cx, 0, SRCCOPY);
/* copy mask */
SelectObject (hdcSrc, himlTrack->hbmMask);
SelectObject (hdcDst, InternalDrag.himl->hbmMask);
BitBlt (hdcDst, 0, 0, cx, cy, hdcSrc, iTrack * cx, 0, SRCCOPY);
DeleteDC (hdcSrc);
DeleteDC (hdcDst);
InternalDrag.himl->cCurImage = 1;
InternalDrag.bHSPending = TRUE;
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, INT uFlags)
{
HDC hdcSrc, hdcDst;
TRACE("iDst=%d iSrc=%d\n", iDst, 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;
hdcSrc = CreateCompatibleDC (0);
if (himlDst == himlSrc)
hdcDst = hdcSrc;
else
hdcDst = CreateCompatibleDC (0);
if (uFlags & ILCF_SWAP) {
/* swap */
HBITMAP hbmTempImage, hbmTempMask;
/* 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 (hdcSrc, himlDst->hbmImage);
SelectObject (hdcDst, hbmTempImage);
StretchBlt (hdcDst, 0, 0, himlSrc->cx, himlSrc->cy,
hdcSrc, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
SRCCOPY);
/* mask */
SelectObject (hdcSrc, himlDst->hbmMask);
SelectObject (hdcDst, hbmTempMask);
StretchBlt (hdcDst, 0, 0, himlSrc->cx, himlSrc->cy,
hdcSrc, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
SRCCOPY);
/* copy (and stretch) source to destination */
/* image */
SelectObject (hdcSrc, himlSrc->hbmImage);
SelectObject (hdcDst, himlDst->hbmImage);
StretchBlt (hdcDst, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
hdcSrc, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* mask */
SelectObject (hdcSrc, himlSrc->hbmMask);
SelectObject (hdcDst, himlDst->hbmMask);
StretchBlt (hdcDst, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
hdcSrc, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* copy (without stretching) temporary bitmaps to source (restore) */
/* image */
SelectObject (hdcSrc, hbmTempImage);
SelectObject (hdcDst, himlSrc->hbmImage);
BitBlt (hdcDst, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
hdcSrc, 0, 0, SRCCOPY);
/* mask */
SelectObject (hdcSrc, hbmTempMask);
SelectObject (hdcDst, himlSrc->hbmMask);
BitBlt (hdcDst, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
hdcSrc, 0, 0, SRCCOPY);
/* delete temporary bitmaps */
DeleteObject (hbmTempMask);
DeleteObject (hbmTempImage);
}
else {
/* copy image */
SelectObject (hdcSrc, himlSrc->hbmImage);
if (himlSrc == himlDst)
hdcDst = hdcSrc;
else
SelectObject (hdcDst, himlDst->hbmImage);
StretchBlt (hdcDst, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
hdcSrc, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
SRCCOPY);
/* copy mask */
SelectObject (hdcSrc, himlSrc->hbmMask);
if (himlSrc == himlDst)
hdcDst = hdcSrc;
else
SelectObject (hdcDst, himlDst->hbmMask);
StretchBlt (hdcDst, iDst * himlDst->cx, 0, himlDst->cx, himlDst->cy,
hdcSrc, iSrc * himlSrc->cx, 0, himlSrc->cx, himlSrc->cy,
SRCCOPY);
}
DeleteDC (hdcSrc);
if (himlSrc != himlDst)
DeleteDC (hdcDst);
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;
HDC hdc;
INT nCount;
HBITMAP hbmTemp;
static WORD aBitBlend25[] =
{0xAA, 0x00, 0x55, 0x00, 0xAA, 0x00, 0x55, 0x00};
static WORD aBitBlend50[] =
{0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA};
TRACE("(%d %d 0x%x %d %d)\n", cx, cy, flags, cInitial, cGrow);
himl = (HIMAGELIST)COMCTL32_Alloc (sizeof(struct _IMAGELIST));
if (!himl)
return NULL;
himl->magic = IMAGELIST_MAGIC;
himl->cx = cx;
himl->cy = cy;
himl->flags = flags;
himl->cMaxImage = cInitial + cGrow;
himl->cInitial = cInitial;
himl->cGrow = cGrow;
himl->cCurImage = 0;
himl->clrFg = CLR_DEFAULT;
himl->clrBk = CLR_NONE;
himl->hbmImage = 0;
himl->hbmMask = 0;
himl->hbrBlend25 = 0;
himl->hbrBlend50 = 0;
/* initialize overlay mask indices */
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
hdc = CreateCompatibleDC (0);
himl->uBitsPixel = (UINT)GetDeviceCaps (hdc, BITSPIXEL);
DeleteDC (hdc);
TRACE("Image: %d Bits per Pixel\n", himl->uBitsPixel);
if (himl->cMaxImage > 0) {
himl->hbmImage =
CreateBitmap (himl->cx * himl->cMaxImage, himl->cy,
1, himl->uBitsPixel, NULL);
if (himl->hbmImage == 0) {
ERR("Error creating image bitmap!\n");
ImageList_Destroy(himl);
return NULL;
}
}
else
himl->hbmImage = 0;
if ( (himl->flags & ILC_MASK)) {
int images = himl->cMaxImage;
if (images <= 0)
images = 1;
himl->hbmMask = CreateBitmap (himl->cx * images, himl->cy,
1, 1, NULL);
if (himl->hbmMask == 0) {
ERR("Error creating mask bitmap!\n");
ImageList_Destroy(himl);
return NULL;
}
}
else
himl->hbmMask = 0;
/* 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;
}
/*************************************************************************
* 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;
/* delete image bitmaps */
if (himl->hbmImage)
DeleteObject (himl->hbmImage);
if (himl->hbmMask)
DeleteObject (himl->hbmMask);
/* delete blending brushes */
if (himl->hbrBlend25)
DeleteObject (himl->hbrBlend25);
if (himl->hbrBlend50)
DeleteObject (himl->hbrBlend50);
ZeroMemory(himl, sizeof(*himl));
COMCTL32_Free (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 = 128;
/* FIXME: instead of using the alpha blending, we should
* create a 50% mask, and draw it semitransparantly that way */
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.
*
* BUGS
* The drag image should be drawn semitransparent.
*/
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
*
* BUGS
* The drag image should be drawn semitransparent.
*/
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);
}
/*************************************************************************
* ImageList_DrawIndirect [COMCTL32.@]
*
* Draws an image using ...
*
* PARAMS
* pimldp [I] pointer to IMAGELISTDRAWPARAMS structure.
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI
ImageList_DrawIndirect (IMAGELISTDRAWPARAMS *pimldp)
{
INT cx, cy, lx, ly, nOvlIdx;
DWORD fState, dwRop;
UINT fStyle;
COLORREF clrBk, oldImageBk, oldImageFg;
HDC hImageDC, hImageListDC, hMaskListDC;
HBITMAP hImageBmp, hOldImageBmp, hOldImageListBmp, hOldMaskListBmp, hBlendMaskBmp;
BOOL bIsTransparent, bBlend, bResult = FALSE;
HIMAGELIST himl;
if (!pimldp || !(himl = pimldp->himl)) return FALSE;
if (!is_valid(himl)) return FALSE;
if ((pimldp->i < 0) || (pimldp->i >= himl->cCurImage)) return FALSE;
lx = himl->cx * pimldp->i + pimldp->xBitmap;
ly = 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;
clrBk = (pimldp->rgbBk == CLR_DEFAULT) ? himl->clrBk : pimldp->rgbBk;
bIsTransparent = (fStyle & ILD_TRANSPARENT) || clrBk == CLR_NONE;
bBlend = fStyle & (ILD_BLEND25 | ILD_BLEND50);
TRACE("hbmMask(%p) iImage(%d) x(%d) y(%d) cx(%d) cy(%d)\n",
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 = CreateCompatibleDC(0);
hMaskListDC = himl->hbmMask ? CreateCompatibleDC(0) : 0;
/* 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;
hOldImageListBmp = SelectObject(hImageListDC, himl->hbmImage);
hOldImageBmp = SelectObject(hImageDC, hImageBmp);
hOldMaskListBmp = hMaskListDC ? SelectObject(hMaskListDC, himl->hbmMask) : 0;
/*
* To obtain a transparent look, background color should be set
* to white and foreground color to black when blting the
* monochrome mask.
*/
oldImageFg = SetTextColor( hImageDC, RGB( 0, 0, 0 ) );
oldImageBk = SetBkColor( hImageDC, RGB( 0xff, 0xff, 0xff ) );
/*
* Draw the initial image
*/
if(fStyle & ILD_MASK) {
if (himl->hbmMask) {
BitBlt(hImageDC, 0, 0, cx, cy, hMaskListDC, lx, ly, SRCCOPY);
} else {
HBRUSH hOldBrush = SelectObject (hImageDC, GetStockObject(BLACK_BRUSH));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY);
SelectObject(hImageDC, hOldBrush);
}
} else if (himl->hbmMask && !bIsTransparent) {
/* blend the image with the needed solid background */
HBRUSH hOldBrush = SelectObject (hImageDC, CreateSolidBrush (clrBk));
PatBlt( hImageDC, 0, 0, cx, cy, PATCOPY );
BitBlt( hImageDC, 0, 0, cx, cy, hMaskListDC, lx, ly, SRCAND );
BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, lx, ly, SRCPAINT );
DeleteObject (SelectObject (hImageDC, hOldBrush));
} else {
/* start off with the image, if we have a mask, we'll use it later */
BitBlt( hImageDC, 0, 0, cx, cy, hImageListDC, lx, ly, SRCCOPY);
}
/* Time for blending, if required */
if (bBlend) {
HBRUSH hBlendBrush, hOldBrush;
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 = (HBRUSH) 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, lx, ly, 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 = (HBRUSH) 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)) {
const INT ox = himl->cx * nOvlIdx + pimldp->xBitmap;
if (himl->hbmMask && !(fStyle & ILD_IMAGE))
BitBlt (hImageDC, 0, 0, cx, cy, hMaskListDC, ox, ly, SRCAND);
BitBlt (hImageDC, 0, 0, cx, cy, hImageListDC, ox, ly, 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 (fState & ILS_ALPHA) 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 && !(fStyle & ILD_MASK)) {
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, lx, ly, 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;
/* cleanup the mess */
SetBkColor(hImageDC, oldImageBk);
SetTextColor(hImageDC, oldImageFg);
SelectObject(hImageDC, hOldImageBmp);
SelectObject(hImageListDC, hOldImageListBmp);
if (hMaskListDC) SelectObject(hMaskListDC, hOldMaskListBmp);
cleanup:
DeleteObject(hBlendMaskBmp);
DeleteObject(hImageBmp);
DeleteDC(hImageDC);
DeleteDC(hImageListDC);
DeleteDC(hMaskListDC);
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;
HDC hdcSrc, hdcDst;
if (!is_valid(himlSrc)) {
ERR("Invalid image list handle!\n");
return NULL;
}
himlDst = ImageList_Create (himlSrc->cx, himlSrc->cy, himlSrc->flags,
himlSrc->cInitial, himlSrc->cGrow);
if (himlDst)
{
hdcSrc = CreateCompatibleDC (0);
hdcDst = CreateCompatibleDC (0);
SelectObject (hdcSrc, himlSrc->hbmImage);
SelectObject (hdcDst, himlDst->hbmImage);
BitBlt (hdcDst, 0, 0, himlSrc->cCurImage * himlSrc->cx, himlSrc->cy,
hdcSrc, 0, 0, SRCCOPY);
if (himlDst->hbmMask)
{
SelectObject (hdcSrc, himlSrc->hbmMask);
SelectObject (hdcDst, himlDst->hbmMask);
BitBlt (hdcDst, 0, 0, himlSrc->cCurImage * himlSrc->cx,
himlSrc->cy, hdcSrc, 0, 0, SRCCOPY);
}
DeleteDC (hdcDst);
DeleteDC (hdcSrc);
himlDst->cCurImage = himlSrc->cCurImage;
himlDst->cMaxImage = himlSrc->cMaxImage;
}
return himlDst;
}
/*************************************************************************
* ImageList_EndDrag [COMCTL32.@] Finishes a drag operation.
*
* Finishes a drag operation.
*
* PARAMS
* no Parameters
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL 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;
InternalDrag.bHSPending = FALSE;
return TRUE;
}
/*************************************************************************
* 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.@]
*
* BUGS
* Stub.
*/
DWORD WINAPI
ImageList_GetFlags(HIMAGELIST himl)
{
FIXME("(%p):empty stub\n", himl);
return 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;
if (!is_valid(himl) || (i < 0) || (i >= himl->cCurImage)) return NULL;
hdcDst = CreateCompatibleDC(0);
ii.fIcon = TRUE;
/* draw mask*/
ii.hbmMask = CreateCompatibleBitmap (hdcDst, himl->cx, himl->cy);
hOldDstBitmap = (HBITMAP)SelectObject (hdcDst, ii.hbmMask);
ImageList_Draw(himl, i, hdcDst, 0, 0, ILD_MASK);
/* draw image*/
SelectObject (hdcDst, himl->hbmImage);
ii.hbmColor = CreateCompatibleBitmap (hdcDst, himl->cx, himl->cy);
SelectObject (hdcDst, ii.hbmColor);
ImageList_Draw(himl, i, hdcDst, 0, 0, fStyle);
/*
* 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))
return FALSE;
if ((himl->cx <= 0) || (himl->cy <= 0))
return FALSE;
if (cx)
*cx = himl->cx;
if (cy)
*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)
{
if (!is_valid(himl) || (pImageInfo == NULL))
return FALSE;
if ((i < 0) || (i >= himl->cCurImage))
return FALSE;
pImageInfo->hbmImage = himl->hbmImage;
pImageInfo->hbmMask = himl->hbmMask;
pImageInfo->rcImage.top = 0;
pImageInfo->rcImage.bottom = himl->cy;
pImageInfo->rcImage.left = i * himl->cx;
pImageInfo->rcImage.right = (i+1) * 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)
{
if (!is_valid(himl) || (lpRect == NULL))
return FALSE;
if ((i < 0) || (i >= himl->cCurImage))
return FALSE;
lpRect->left = i * himl->cx;
lpRect->top = 0;
lpRect->right = lpRect->left + himl->cx;
lpRect->bottom = himl->cy;
return TRUE;
}
/*************************************************************************
* ImageList_LoadImage [COMCTL32.@]
* ImageList_LoadImageA [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_LoadImageA (HINSTANCE hi, LPCSTR lpbmp, INT cx, INT cGrow,
COLORREF clrMask, UINT uType, UINT uFlags)
{
HIMAGELIST himl = NULL;
HANDLE handle;
INT nImageCount;
handle = LoadImageA (hi, lpbmp, uType, 0, 0, uFlags);
if (!handle) {
ERR("Error loading image!\n");
return NULL;
}
if (uType == IMAGE_BITMAP) {
BITMAP bmp;
GetObjectA (handle, sizeof(BITMAP), &bmp);
/* 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 = bmp.bmHeight;
}
nImageCount = bmp.bmWidth / cx;
himl = ImageList_Create (cx, bmp.bmHeight, ILC_MASK | ILC_COLOR,
nImageCount, cGrow);
if (!himl) {
DeleteObject (handle);
return NULL;
}
ImageList_AddMasked (himl, (HBITMAP)handle, clrMask);
}
else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
ICONINFO ii;
BITMAP bmp;
GetIconInfo (handle, &ii);
GetObjectA (ii.hbmColor, sizeof(BITMAP), (LPVOID)&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_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) {
ERR("Error loading image!\n");
return NULL;
}
if (uType == IMAGE_BITMAP) {
BITMAP bmp;
GetObjectA (handle, sizeof(BITMAP), &bmp);
/* 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 = bmp.bmHeight;
}
nImageCount = bmp.bmWidth / cx;
himl = ImageList_Create (cx, bmp.bmHeight, ILC_MASK | ILC_COLOR,
nImageCount, cGrow);
if (!himl) {
DeleteObject (handle);
return NULL;
}
ImageList_AddMasked (himl, (HBITMAP)handle, clrMask);
}
else if ((uType == IMAGE_ICON) || (uType == IMAGE_CURSOR)) {
ICONINFO ii;
BITMAP bmp;
GetIconInfo (handle, &ii);
GetObjectA (ii.hbmMask, sizeof(BITMAP), (LPVOID)&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.@]
*
* Creates a new image list that contains a merged image from the specified
* images of both source 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: handle of the merged image list.
* Failure: NULL
*/
HIMAGELIST WINAPI
ImageList_Merge (HIMAGELIST himl1, INT i1, HIMAGELIST himl2, INT i2,
INT dx, INT dy)
{
HIMAGELIST himlDst = NULL;
HDC hdcSrcImage, hdcDstImage;
INT cxDst, cyDst;
INT xOff1, yOff1, xOff2, yOff2;
INT nX1, nX2;
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;
/* check indices */
if ((i1 < 0) || (i1 >= himl1->cCurImage)) {
ERR("Index 1 out of range! %d\n", i1);
return NULL;
}
if ((i2 < 0) || (i2 >= himl2->cCurImage)) {
ERR("Index 2 out of range! %d\n", i2);
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)
return NULL;
if (himlDst) {
hdcSrcImage = CreateCompatibleDC (0);
hdcDstImage = CreateCompatibleDC (0);
nX1 = i1 * himl1->cx;
nX2 = i2 * himl2->cx;
/* copy image */
SelectObject (hdcSrcImage, himl1->hbmImage);
SelectObject (hdcDstImage, himlDst->hbmImage);
BitBlt (hdcDstImage, 0, 0, cxDst, cyDst,
hdcSrcImage, 0, 0, BLACKNESS);
BitBlt (hdcDstImage, xOff1, yOff1, himl1->cx, himl1->cy,
hdcSrcImage, nX1, 0, SRCCOPY);
SelectObject (hdcSrcImage, himl2->hbmMask);
BitBlt (hdcDstImage, xOff2, yOff2, himl2->cx, himl2->cy,
hdcSrcImage, nX2, 0, SRCAND);
SelectObject (hdcSrcImage, himl2->hbmImage);
BitBlt (hdcDstImage, xOff2, yOff2, himl2->cx, himl2->cy,
hdcSrcImage, nX2, 0, SRCPAINT);
/* copy mask */
SelectObject (hdcSrcImage, himl1->hbmMask);
SelectObject (hdcDstImage, himlDst->hbmMask);
BitBlt (hdcDstImage, 0, 0, cxDst, cyDst,
hdcSrcImage, 0, 0, WHITENESS);
BitBlt (hdcDstImage, xOff1, yOff1, himl1->cx, himl1->cy,
hdcSrcImage, nX1, 0, SRCCOPY);
SelectObject (hdcSrcImage, himl2->hbmMask);
BitBlt (hdcDstImage, xOff2, yOff2, himl2->cx, himl2->cy,
hdcSrcImage, nX2, 0, SRCAND);
DeleteDC (hdcSrcImage);
DeleteDC (hdcDstImage);
himlDst->cCurImage = 1;
}
return himlDst;
}
/* helper for _read_bitmap currently unused */
#if 0
static int may_use_dibsection(HDC hdc) {
int bitspixel = GetDeviceCaps(hdc,BITSPIXEL)*GetDeviceCaps(hdc,PLANES);
if (bitspixel>8)
return TRUE;
if (bitspixel<=4)
return FALSE;
return GetDeviceCaps(hdc,CAPS1) & C1_DIBENGINE;
}
#endif
/* helper for ImageList_Read, see comments below */
static HBITMAP _read_bitmap(LPSTREAM pstm,int ilcFlag,int cx,int cy) {
HDC xdc = 0;
BITMAPFILEHEADER bmfh;
BITMAPINFOHEADER bmih;
int bitsperpixel,palspace,longsperline,width,height;
LPBITMAPINFOHEADER bmihc = NULL;
int result = 0;
HBITMAP hbitmap = 0;
LPBYTE bits = NULL,nbits = NULL;
int nbytesperline,bytesperline;
if (!SUCCEEDED(IStream_Read ( pstm, &bmfh, sizeof(bmfh), NULL)) ||
(bmfh.bfType != (('M'<<8)|'B')) ||
!SUCCEEDED(IStream_Read ( pstm, &bmih, sizeof(bmih), NULL)) ||
(bmih.biSize != sizeof(bmih))
)
return 0;
bitsperpixel = bmih.biPlanes * bmih.biBitCount;
if (bitsperpixel<=8)
palspace = (1<<bitsperpixel)*sizeof(RGBQUAD);
else
palspace = 0;
width = bmih.biWidth;
height = bmih.biHeight;
bmihc = (LPBITMAPINFOHEADER)LocalAlloc(LMEM_ZEROINIT,sizeof(bmih)+palspace);
memcpy(bmihc,&bmih,sizeof(bmih));
longsperline = ((width*bitsperpixel+31)&~0x1f)>>5;
bmihc->biSizeImage = (longsperline*height)<<2;
/* read the palette right after the end of the bitmapinfoheader */
if (palspace)
if (!SUCCEEDED(IStream_Read ( pstm, bmihc+1, palspace, NULL)))
goto ret1;
xdc = GetDC(0);
#if 0 /* Magic for NxM -> 1x(N*M) not implemented for DIB Sections */
if ((bitsperpixel>1) &&
((ilcFlag!=ILC_COLORDDB) && (!ilcFlag || may_use_dibsection(xdc)))
) {
hbitmap = CreateDIBSection(xdc,(BITMAPINFO*)bmihc,0,(LPVOID*)&bits,0,0);
if (!hbitmap)
goto ret1;
if (!SUCCEEDED(IStream_Read( pstm, bits, bmihc->biSizeImage, NULL)))
goto ret1;
result = 1;
} else
#endif
{
int i,nwidth,nheight;
nwidth = width*(height/cy);
nheight = cy;
if (bitsperpixel==1)
hbitmap = CreateBitmap(nwidth,nheight,1,1,NULL);
else
hbitmap = CreateCompatibleBitmap(xdc,nwidth,nheight);
/* Might be a bit excessive memory use here */
bits = (LPBYTE)LocalAlloc(LMEM_ZEROINIT,bmihc->biSizeImage);
nbits = (LPBYTE)LocalAlloc(LMEM_ZEROINIT,bmihc->biSizeImage);
if (!SUCCEEDED(IStream_Read ( pstm, bits, bmihc->biSizeImage, NULL)))
goto ret1;
/* Copy the NxM bitmap into a 1x(N*M) bitmap we need, linewise */
/* Do not forget that windows bitmaps are bottom->top */
bytesperline = longsperline*4;
nbytesperline = (height/cy)*bytesperline;
for (i=0;i<height;i++) {
memcpy(
nbits+((height-1-i)%cy)*nbytesperline+(i/cy)*bytesperline,
bits+bytesperline*(height-1-i),
bytesperline
);
}
bmihc->biWidth = nwidth;
bmihc->biHeight = nheight;
if (!SetDIBits(xdc,hbitmap,0,nheight,nbits,(BITMAPINFO*)bmihc,0))
goto ret1;
LocalFree((HLOCAL)nbits);
LocalFree((HLOCAL)bits);
result = 1;
}
ret1:
if (xdc) ReleaseDC(0,xdc);
if (bmihc) LocalFree((HLOCAL)bmihc);
if (!result) {
if (hbitmap) {
DeleteObject(hbitmap);
hbitmap = 0;
}
}
return hbitmap;
}
/*************************************************************************
* 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];
*
* CAVEAT: Those images are within a NxM bitmap, not the 1xN we expect.
* _read_bitmap needs to convert them.
*/
HIMAGELIST WINAPI ImageList_Read (LPSTREAM pstm)
{
ILHEAD ilHead;
HIMAGELIST himl;
HBITMAP hbmColor=0,hbmMask=0;
int i;
if (!SUCCEEDED(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;
#if 0
FIXME(" ilHead.cCurImage = %d\n",ilHead.cCurImage);
FIXME(" ilHead.cMaxImage = %d\n",ilHead.cMaxImage);
FIXME(" ilHead.cGrow = %d\n",ilHead.cGrow);
FIXME(" ilHead.cx = %d\n",ilHead.cx);
FIXME(" ilHead.cy = %d\n",ilHead.cy);
FIXME(" ilHead.flags = %x\n",ilHead.flags);
FIXME(" ilHead.ovls[0] = %d\n",ilHead.ovls[0]);
FIXME(" ilHead.ovls[1] = %d\n",ilHead.ovls[1]);
FIXME(" ilHead.ovls[2] = %d\n",ilHead.ovls[2]);
FIXME(" ilHead.ovls[3] = %d\n",ilHead.ovls[3]);
#endif
hbmColor = _read_bitmap(pstm,ilHead.flags & ~ILC_MASK,ilHead.cx,ilHead.cy);
if (!hbmColor)
return NULL;
if (ilHead.flags & ILC_MASK) {
hbmMask = _read_bitmap(pstm,0,ilHead.cx,ilHead.cy);
if (!hbmMask) {
DeleteObject(hbmColor);
return NULL;
}
}
himl = ImageList_Create (
ilHead.cx,
ilHead.cy,
ilHead.flags,
1, /* initial */
ilHead.cGrow
);
if (!himl) {
DeleteObject(hbmColor);
DeleteObject(hbmMask);
return NULL;
}
himl->hbmImage = hbmColor;
himl->hbmMask = hbmMask;
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
*/
BOOL WINAPI
ImageList_Remove (HIMAGELIST himl, INT i)
{
HBITMAP hbmNewImage, hbmNewMask;
HDC hdcSrc, hdcDst;
INT cxNew, nCount;
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)) {
ERR("index out of range! %d\n", i);
return FALSE;
}
if (i == -1) {
/* 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;
himl->cCurImage = 0;
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
DeleteObject (himl->hbmImage);
himl->hbmImage =
CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
1, himl->uBitsPixel, NULL);
if (himl->hbmMask) {
DeleteObject (himl->hbmMask);
himl->hbmMask =
CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
1, 1, NULL);
}
}
else {
/* delete one image */
TRACE("Remove single image! %d\n", i);
/* create new bitmap(s) */
cxNew = (himl->cCurImage + himl->cGrow - 1) * himl->cx;
TRACE(" - Number of images: %d / %d (Old/New)\n",
himl->cCurImage, himl->cCurImage - 1);
TRACE(" - Max. number of images: %d / %d (Old/New)\n",
himl->cMaxImage, himl->cCurImage + himl->cGrow - 1);
hbmNewImage =
CreateBitmap (cxNew, himl->cy, 1, himl->uBitsPixel, NULL);
if (himl->hbmMask)
hbmNewMask = CreateBitmap (cxNew, himl->cy, 1, 1, NULL);
else
hbmNewMask = 0; /* Just to keep compiler happy! */
hdcSrc = CreateCompatibleDC (0);
hdcDst = 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 (hdcSrc, himl->hbmImage);
SelectObject (hdcDst, hbmNewImage);
BitBlt (hdcDst, 0, 0, i * himl->cx, himl->cy,
hdcSrc, 0, 0, SRCCOPY);
if (himl->hbmMask) {
SelectObject (hdcSrc, himl->hbmMask);
SelectObject (hdcDst, hbmNewMask);
BitBlt (hdcDst, 0, 0, i * himl->cx, himl->cy,
hdcSrc, 0, 0, SRCCOPY);
}
}
/* copy all images and masks behind the removed image */
if (i < himl->cCurImage - 1) {
TRACE("Post image copy!\n");
SelectObject (hdcSrc, himl->hbmImage);
SelectObject (hdcDst, hbmNewImage);
BitBlt (hdcDst, i * himl->cx, 0, (himl->cCurImage - i - 1) * himl->cx,
himl->cy, hdcSrc, (i + 1) * himl->cx, 0, SRCCOPY);
if (himl->hbmMask) {
SelectObject (hdcSrc, himl->hbmMask);
SelectObject (hdcDst, hbmNewMask);
BitBlt (hdcDst, i * himl->cx, 0,
(himl->cCurImage - i - 1) * himl->cx,
himl->cy, hdcSrc, (i + 1) * himl->cx, 0, SRCCOPY);
}
}
DeleteDC (hdcSrc);
DeleteDC (hdcDst);
/* delete old images and insert new ones */
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewImage;
if (himl->hbmMask) {
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewMask;
}
himl->cCurImage--;
himl->cMaxImage = himl->cCurImage + himl->cGrow;
}
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 hdcImageList, hdcImage;
BITMAP bmp;
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;
}
hdcImageList = CreateCompatibleDC (0);
hdcImage = CreateCompatibleDC (0);
GetObjectA (hbmImage, sizeof(BITMAP), (LPVOID)&bmp);
/* Replace Image */
SelectObject (hdcImageList, himl->hbmImage);
SelectObject (hdcImage, hbmImage);
StretchBlt (hdcImageList, i * himl->cx, 0, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
if (himl->hbmMask)
{
/* Replace Mask */
SelectObject (hdcImageList, himl->hbmMask);
SelectObject (hdcImage, hbmMask);
StretchBlt (hdcImageList, i * himl->cx, 0, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
/* Remove the background from the image
*/
SelectObject (hdcImageList, himl->hbmImage);
StretchBlt (hdcImageList,
i*himl->cx, 0, himl->cx, himl->cy,
hdcImage,
0, 0, bmp.bmWidth, bmp.bmHeight,
0x220326); /* NOTSRCAND */
}
DeleteDC (hdcImage);
DeleteDC (hdcImageList);
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 i, HICON hIcon)
{
HDC hdcImageList, hdcImage;
INT nIndex;
HICON hBestFitIcon;
HBITMAP hbmOldSrc, hbmOldDst;
ICONINFO ii;
BITMAP bmp;
TRACE("(0x%lx 0x%x %p)\n", (DWORD)himl, i, hIcon);
if (!is_valid(himl))
return -1;
if ((i >= himl->cMaxImage) || (i < -1))
return -1;
hBestFitIcon = CopyImage(
hIcon, IMAGE_ICON,
himl->cx, himl->cy,
LR_COPYFROMRESOURCE);
GetIconInfo (hBestFitIcon, &ii);
if (ii.hbmMask == 0)
ERR("no mask!\n");
if (ii.hbmColor == 0)
ERR("no color!\n");
GetObjectA (ii.hbmMask, sizeof(BITMAP), (LPVOID)&bmp);
if (i == -1) {
if (himl->cCurImage + 1 > himl->cMaxImage)
IMAGELIST_InternalExpandBitmaps (himl, 1, 0, 0);
nIndex = himl->cCurImage;
himl->cCurImage++;
}
else
nIndex = i;
hdcImageList = CreateCompatibleDC (0);
TRACE("hdcImageList=%p!\n", hdcImageList);
if (hdcImageList == 0)
ERR("invalid hdcImageList!\n");
hdcImage = CreateCompatibleDC (0);
TRACE("hdcImage=%p!\n", hdcImage);
if (hdcImage == 0)
ERR("invalid hdcImage!\n");
hbmOldDst = SelectObject (hdcImageList, himl->hbmImage);
SetTextColor( hdcImageList, RGB(0,0,0));
SetBkColor( hdcImageList, RGB(255,255,255));
hbmOldSrc = SelectObject (hdcImage, ii.hbmColor);
StretchBlt (hdcImageList, nIndex * himl->cx, 0, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
if (himl->hbmMask) {
SelectObject (hdcImageList, himl->hbmMask);
SelectObject (hdcImage, ii.hbmMask);
StretchBlt (hdcImageList, nIndex * himl->cx, 0, himl->cx, himl->cy,
hdcImage, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
}
SelectObject (hdcImage, hbmOldSrc);
SelectObject (hdcImageList, hbmOldDst);
if(hBestFitIcon)
DestroyIcon(hBestFitIcon);
if (hdcImageList)
DeleteDC (hdcImageList);
if (hdcImage)
DeleteDC (hdcImage);
if (ii.hbmColor)
DeleteObject (ii.hbmColor);
if (ii.hbmMask)
DeleteObject (ii.hbmMask);
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
* 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;
INT dx, dy;
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;
/* Calculate the offset between the origin of the old image and the
* origin of the second image.
* dxHotspot, dyHotspot is the offset of THE Hotspot (there is only one
* hotspot) to the origin of the second image.
* See M$DN for details */
if(InternalDrag.bHSPending) {
dx = 0;
dy = 0;
InternalDrag.bHSPending = FALSE;
} else {
dx = InternalDrag.dxHotspot - dxHotspot;
dy = InternalDrag.dyHotspot - dyHotspot;
}
himlTemp = ImageList_Merge (InternalDrag.himl, 0, himlDrag, iDrag, dx, dy);
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;
/* update the InternalDragOffset, if the origin of the
* DragImage was changed by ImageList_Merge. */
if (dx <= 0)
InternalDrag.dxHotspot = dxHotspot;
if (dy <= 0)
InternalDrag.dyHotspot = dyHotspot;
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%lx):empty stub!\n", himl, i, dwFilter);
return FALSE;
}
/*************************************************************************
* ImageList_SetFlags [COMCTL32.@]
*
* BUGS
* Stub.
*/
DWORD WINAPI
ImageList_SetFlags(HIMAGELIST himl, DWORD flags)
{
FIXME("(%p %08lx):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;
if (!is_valid(himl))
return FALSE;
/* remove all images */
himl->cMaxImage = himl->cInitial + himl->cGrow;
himl->cCurImage = 0;
himl->cx = cx;
himl->cy = cy;
/* initialize overlay mask indices */
for (nCount = 0; nCount < MAX_OVERLAYIMAGE; nCount++)
himl->nOvlIdx[nCount] = -1;
DeleteObject (himl->hbmImage);
himl->hbmImage =
CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
1, himl->uBitsPixel, NULL);
if (himl->hbmMask) {
DeleteObject (himl->hbmMask);
himl->hbmMask =
CreateBitmap (himl->cMaxImage * himl->cx, himl->cy,
1, 1, NULL);
}
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, INT iImageCount)
{
HDC hdcImageList, hdcBitmap;
HBITMAP hbmNewBitmap;
INT nNewCount, nCopyCount;
TRACE("%p %d\n",himl,iImageCount);
if (!is_valid(himl))
return FALSE;
if (himl->cCurImage >= iImageCount)
return FALSE;
if (himl->cMaxImage > iImageCount)
{
himl->cCurImage = iImageCount;
return TRUE;
}
nNewCount = iImageCount + himl->cGrow;
nCopyCount = min(himl->cCurImage, iImageCount);
hdcImageList = CreateCompatibleDC (0);
hdcBitmap = CreateCompatibleDC (0);
hbmNewBitmap = CreateBitmap (nNewCount * himl->cx, himl->cy,
1, himl->uBitsPixel, NULL);
if (hbmNewBitmap != 0)
{
SelectObject (hdcImageList, himl->hbmImage);
SelectObject (hdcBitmap, hbmNewBitmap);
/* copy images */
BitBlt (hdcBitmap, 0, 0, nCopyCount * himl->cx, himl->cy,
hdcImageList, 0, 0, SRCCOPY);
#if 0
/* delete 'empty' image space */
SetBkColor (hdcBitmap, RGB(255, 255, 255));
SetTextColor (hdcBitmap, RGB(0, 0, 0));
PatBlt (hdcBitmap, nCopyCount * himl->cx, 0,
(nNewCount - nCopyCount) * himl->cx, himl->cy, BLACKNESS);
#endif
DeleteObject (himl->hbmImage);
himl->hbmImage = hbmNewBitmap;
}
else
ERR("Could not create new image bitmap !\n");
if (himl->hbmMask)
{
hbmNewBitmap = CreateBitmap (nNewCount * himl->cx, himl->cy,
1, 1, NULL);
if (hbmNewBitmap != 0)
{
SelectObject (hdcImageList, himl->hbmMask);
SelectObject (hdcBitmap, hbmNewBitmap);
/* copy images */
BitBlt (hdcBitmap, 0, 0, nCopyCount * himl->cx, himl->cy,
hdcImageList, 0, 0, SRCCOPY);
#if 0
/* delete 'empty' image space */
SetBkColor (hdcBitmap, RGB(255, 255, 255));
SetTextColor (hdcBitmap, RGB(0, 0, 0));
PatBlt (hdcBitmap, nCopyCount * himl->cx, 0,
(nNewCount - nCopyCount) * himl->cx, himl->cy, BLACKNESS);
#endif
DeleteObject (himl->hbmMask);
himl->hbmMask = hbmNewBitmap;
}
else
ERR("Could not create new mask bitmap!\n");
}
DeleteDC (hdcImageList);
DeleteDC (hdcBitmap);
/* 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, int cx, int cy)
{
LPBITMAPFILEHEADER bmfh;
LPBITMAPINFOHEADER bmih;
LPBYTE data, lpBits, lpBitsOrg;
BITMAP bm;
INT bitCount, sizeImage, offBits, totalSize;
INT nwidth, nheight, nsizeImage, icount;
HDC xdc;
BOOL result = FALSE;
xdc = GetDC(0);
GetObjectA(hBitmap, sizeof(BITMAP), (LPVOID)&bm);
/* XXX is this always correct? */
icount = bm.bmWidth / cx;
nwidth = cx << 2;
nheight = cy * ((icount+3)>>2);
bitCount = bm.bmBitsPixel == 1 ? 1 : 24;
sizeImage = ((((bm.bmWidth * bitCount)+31) & ~31) >> 3) * bm.bmHeight;
nsizeImage = ((((nwidth * bitCount)+31) & ~31) >> 3) * nheight;
totalSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
if(bitCount != 24)
totalSize += (1 << bitCount) * sizeof(RGBQUAD);
offBits = totalSize;
totalSize += nsizeImage;
data = (LPBYTE)LocalAlloc(LMEM_ZEROINIT, totalSize);
bmfh = (LPBITMAPFILEHEADER)data;
bmih = (LPBITMAPINFOHEADER)(data + sizeof(BITMAPFILEHEADER));
lpBits = data + offBits;
/* setup BITMAPFILEHEADER */
bmfh->bfType = (('M' << 8) | 'B');
bmfh->bfSize = 0;
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 = nsizeImage;
bmih->biXPelsPerMeter = 0;
bmih->biYPelsPerMeter = 0;
bmih->biClrUsed = 0;
bmih->biClrImportant = 0;
lpBitsOrg = (LPBYTE)LocalAlloc(LMEM_ZEROINIT, nsizeImage);
if(!GetDIBits(xdc, hBitmap, 0, bm.bmHeight, lpBitsOrg,
(BITMAPINFO *)bmih, DIB_RGB_COLORS))
goto failed;
else {
int i;
int obpl = (((bm.bmWidth*bitCount+31) & ~31)>>3);
int nbpl = (((nwidth*bitCount+31) & ~31)>>3);
for(i = 0; i < nheight; i++) {
int ooff = ((nheight-1-i)%cy) * obpl + ((i/cy) * nbpl);
int noff = (nbpl * (nheight-1-i));
memcpy(lpBits + noff, lpBitsOrg + ooff, nbpl);
}
}
bmih->biWidth = nwidth;
bmih->biHeight = nheight;
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(!SUCCEEDED(IStream_Write(pstm, data, totalSize, NULL)))
goto failed;
result = TRUE;
failed:
ReleaseDC(0, xdc);
LocalFree((HLOCAL)lpBitsOrg);
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;
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];
}
if(!SUCCEEDED(IStream_Write(pstm, &ilHead, sizeof(ILHEAD), NULL)))
return FALSE;
/* write the bitmap */
if(!_write_bitmap(himl->hbmImage, pstm, himl->cx, himl->cy))
return FALSE;
/* write the mask if we have one */
if(himl->flags & ILC_MASK) {
if(!_write_bitmap(himl->hbmMask, pstm, himl->cx, himl->cy))
return FALSE;
}
return TRUE;
}
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