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OS/2 Shareware BBS: 10 Tools
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tkisrc04.zip
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tkOS2Pixmap.c
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C/C++ Source or Header
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1998-08-07
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7KB
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238 lines
/*
* tkOS2Pixmap.c --
*
* This file contains the Xlib emulation functions pertaining to
* creating and destroying pixmaps.
*
* Copyright (c) 1996-1997 Illya Vaes
* Copyright (c) 1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tkOS2Int.h"
/*
*----------------------------------------------------------------------
*
* XCreatePixmap --
*
* Creates an in memory drawing surface.
*
* Results:
* Returns a handle to a new pixmap.
*
* Side effects:
* Allocates a new OS/2 bitmap, hps, DC.
*
*----------------------------------------------------------------------
*/
Pixmap
XCreatePixmap(display, d, width, height, depth)
Display* display;
Drawable d;
unsigned int width;
unsigned int height;
unsigned int depth;
{
TkOS2Drawable *newTodPtr, *todPtr;
BITMAPINFOHEADER2 bmpInfo;
LONG rc;
DEVOPENSTRUC dop = {0L, (PSZ)"DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
SIZEL sizl = {0,0}; /* use same page size as device */
sizl.cx = width; sizl.cy = height;
display->request++;
newTodPtr = (TkOS2Drawable*) ckalloc(sizeof(TkOS2Drawable));
if (newTodPtr == NULL) {
return (Pixmap)None;
}
newTodPtr->type = TOD_BITMAP;
newTodPtr->bitmap.depth = depth;
todPtr = (TkOS2Drawable *)d;
if (todPtr->type != TOD_BITMAP) {
#ifdef DEBUG
printf("XCreatePixmap %x, depth %d, parent %x, %dx%d\n", newTodPtr,
depth, todPtr->window.handle, sizl.cx, sizl.cy);
#endif
newTodPtr->bitmap.parent = todPtr->window.handle;
if (todPtr->window.winPtr == NULL) {
newTodPtr->bitmap.colormap = DefaultColormap(display,
DefaultScreen(display));
} else {
newTodPtr->bitmap.colormap = todPtr->window.winPtr->atts.colormap;
}
} else {
#ifdef DEBUG
printf("XCreatePixmap %x, depth %d, parent (bitmap) %x, %dx%d\n",
newTodPtr, depth, todPtr->bitmap.parent, sizl.cx, sizl.cy);
#endif
newTodPtr->bitmap.colormap = todPtr->bitmap.colormap;
newTodPtr->bitmap.parent = todPtr->bitmap.parent;
}
#ifdef DEBUG
printf("XCreatePixmap: colormap %x, parent %x\n",
newTodPtr->bitmap.colormap, newTodPtr->bitmap.parent);
#endif
bmpInfo.cbFix = 16L;
bmpInfo.cx = width;
bmpInfo.cy = height;
bmpInfo.cPlanes = 1;
bmpInfo.cBitCount = depth;
newTodPtr->bitmap.dc = DevOpenDC(hab, OD_MEMORY, (PSZ)"*", 5L,
(PDEVOPENDATA)&dop, NULLHANDLE);
if (newTodPtr->bitmap.dc == DEV_ERROR) {
#ifdef DEBUG
printf("DevOpenDC failed in XCreatePixmap\n");
#endif
ckfree((char *) newTodPtr);
return (Pixmap)None;
}
#ifdef DEBUG
printf("DevOpenDC in XCreatePixmap returns %x\n", newTodPtr->bitmap.dc);
#endif
newTodPtr->bitmap.hps = GpiCreatePS(hab, newTodPtr->bitmap.dc, &sizl,
PU_PELS | GPIT_MICRO | GPIA_ASSOC);
if (newTodPtr->bitmap.hps == GPI_ERROR) {
DevCloseDC(newTodPtr->bitmap.dc);
#ifdef DEBUG
printf("GpiCreatePS failed in XCreatePixmap\n");
#endif
ckfree((char *) newTodPtr);
return (Pixmap)None;
}
#ifdef DEBUG
printf("GpiCreatePS in XCreatePixmap returns %x\n", newTodPtr->bitmap.hps);
#endif
newTodPtr->bitmap.handle = GpiCreateBitmap(newTodPtr->bitmap.hps,
&bmpInfo, 0L, NULL, NULL);
if (newTodPtr->bitmap.handle == NULLHANDLE) {
#ifdef DEBUG
printf("GpiCreateBitmap ERROR %x in XCreatePixmap\n",
WinGetLastError(hab));
#endif
ckfree((char *) newTodPtr);
return (Pixmap)None;
}
#ifdef DEBUG
printf("GpiCreateBitmap in XCreatePixmap returns %x\n",
newTodPtr->bitmap.handle);
#endif
sizl.cx = width;
sizl.cy = height;
rc = GpiSetBitmapDimension(newTodPtr->bitmap.handle, &sizl);
#ifdef DEBUG
if (rc == FALSE) {
printf(" GpiSetBitmapDimension ERROR %x\n", WinGetLastError(hab));
} else {
printf(" GpiSetBitmapDimension: %dx%d\n", sizl.cx, sizl.cy);
}
rc = GpiQueryBitmapDimension(newTodPtr->bitmap.handle, &sizl);
if (rc == FALSE) {
printf(" GpiQueryBitmapDimension ERROR %x\n", WinGetLastError(hab));
} else {
printf(" GpiQueryBitmapDimension: %dx%d\n", sizl.cx, sizl.cy);
}
#endif
rc = GpiSetBitmap(newTodPtr->bitmap.hps, newTodPtr->bitmap.handle);
if (rc == HBM_ERROR) {
#ifdef DEBUG
printf("GpiSetBitmap returned HBM_ERROR %x\n", WinGetLastError(hab));
#endif
GpiDestroyPS(newTodPtr->bitmap.hps);
DevCloseDC(newTodPtr->bitmap.dc);
ckfree((char *) newTodPtr);
return (Pixmap)None;
}
#ifdef DEBUG
else printf("GpiSetBitmap %x into hps %x returns %x\n",
newTodPtr->bitmap.handle, newTodPtr->bitmap.hps, rc);
#endif
return (Pixmap)newTodPtr;
}
/*
*----------------------------------------------------------------------
*
* XFreePixmap --
*
* Release the resources associated with a pixmap.
*
* Results:
* None.
*
* Side effects:
* Deletes the bitmap created by XCreatePixmap.
*
*----------------------------------------------------------------------
*/
void
XFreePixmap(display, pixmap)
Display* display;
Pixmap pixmap;
{
TkOS2Drawable *todPtr = (TkOS2Drawable *) pixmap;
HBITMAP hbm;
#ifdef DEBUG
printf("XFreePixmap %x\n", todPtr);
#endif
display->request++;
if (todPtr != NULL) {
hbm = GpiSetBitmap(todPtr->bitmap.hps, NULLHANDLE);
#ifdef DEBUG
printf(" GpiSetBitmap hps %x returned %x\n", todPtr->bitmap.hps,
hbm);
#endif
GpiDeleteBitmap(todPtr->bitmap.handle);
GpiDestroyPS(todPtr->bitmap.hps);
DevCloseDC(todPtr->bitmap.dc);
ckfree((char *)todPtr);
}
}
/*
*----------------------------------------------------------------------
*
* TkSetPixmapColormap --
*
* The following function is a hack used by the photo widget to
* explicitly set the colormap slot of a Pixmap.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkSetPixmapColormap(pixmap, colormap)
Pixmap pixmap;
Colormap colormap;
{
TkOS2Drawable *todPtr = (TkOS2Drawable *)pixmap;
#ifdef DEBUG
printf("TkSetPixmapColormap, bitmap %x, colormap %x\n",
TkOS2GetHBITMAP(todPtr), colormap);
#endif
todPtr->bitmap.colormap = colormap;
/*
rc = (HPAL) TkOS2SelectPalette(todPtr->bitmap.hps, todPtr->bitmap.parent,
colormap);
*/
}