127 lines
2.7 KiB
C
127 lines
2.7 KiB
C
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/*
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* tkWinPixmap.c --
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*
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* This file contains the Xlib emulation functions pertaining to
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* creating and destroying pixmaps.
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*
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* Copyright (c) 1995 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* SCCS: @(#) tkWinPixmap.c 1.15 96/10/11 14:58:31
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*/
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#include "tkWinInt.h"
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/*
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*----------------------------------------------------------------------
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*
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* Tk_GetPixmap --
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*
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* Creates an in memory drawing surface.
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*
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* Results:
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* Returns a handle to a new pixmap.
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*
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* Side effects:
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* Allocates a new Win32 bitmap.
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*
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*----------------------------------------------------------------------
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*/
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Pixmap
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Tk_GetPixmap(display, d, width, height, depth)
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Display* display;
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Drawable d;
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int width;
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int height;
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int depth;
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{
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TkWinDrawable *newTwdPtr, *twdPtr;
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display->request++;
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newTwdPtr = (TkWinDrawable*) ckalloc(sizeof(TkWinDrawable));
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newTwdPtr->type = TWD_BITMAP;
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newTwdPtr->bitmap.depth = depth;
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twdPtr = (TkWinDrawable *)d;
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if (twdPtr->type != TWD_BITMAP) {
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if (twdPtr->window.winPtr == NULL) {
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newTwdPtr->bitmap.colormap = DefaultColormap(display,
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DefaultScreen(display));
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} else {
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newTwdPtr->bitmap.colormap = twdPtr->window.winPtr->atts.colormap;
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}
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} else {
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newTwdPtr->bitmap.colormap = twdPtr->bitmap.colormap;
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}
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newTwdPtr->bitmap.handle = CreateBitmap(width, height, 1, depth, NULL);
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if (newTwdPtr->bitmap.handle == NULL) {
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ckfree((char *) newTwdPtr);
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return None;
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}
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return (Pixmap)newTwdPtr;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Tk_FreePixmap --
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*
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* Release the resources associated with a pixmap.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Deletes the bitmap created by Tk_GetPixmap.
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*
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*----------------------------------------------------------------------
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*/
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void
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Tk_FreePixmap(display, pixmap)
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Display* display;
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Pixmap pixmap;
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{
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TkWinDrawable *twdPtr = (TkWinDrawable *) pixmap;
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display->request++;
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if (twdPtr != NULL) {
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DeleteObject(twdPtr->bitmap.handle);
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ckfree((char *)twdPtr);
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkSetPixmapColormap --
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*
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* The following function is a hack used by the photo widget to
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* explicitly set the colormap slot of a Pixmap.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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void
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TkSetPixmapColormap(pixmap, colormap)
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Pixmap pixmap;
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Colormap colormap;
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{
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TkWinDrawable *twdPtr = (TkWinDrawable *)pixmap;
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twdPtr->bitmap.colormap = colormap;
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}
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