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/*
* ximage.c --
*
* X bitmap and image routines.
*
* 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.
*
* SCCS: @(#) ximage.c 1.6 96/07/23 16:59:10
*/
#include "tkInt.h"
/*
*----------------------------------------------------------------------
*
* XCreateBitmapFromData --
*
* Construct a single plane pixmap from bitmap data.
*
* Results:
* Returns a new Pixmap.
*
* Side effects:
* Allocates a new bitmap and drawable.
*
*----------------------------------------------------------------------
*/
Pixmap
XCreateBitmapFromData(display, d, data, width, height)
Display* display;
Drawable d;
_Xconst char* data;
unsigned int width;
unsigned int height;
{
XImage ximage;
GC gc;
Pixmap pix;
pix = Tk_GetPixmap(display, d, width, height, 1);
gc = XCreateGC(display, pix, 0, NULL);
if (gc == NULL) {
return None;
}
ximage.height = height;
ximage.width = width;
ximage.depth = 1;
ximage.bits_per_pixel = 1;
ximage.xoffset = 0;
ximage.format = XYBitmap;
ximage.data = (char *)data;
ximage.byte_order = LSBFirst;
ximage.bitmap_unit = 8;
ximage.bitmap_bit_order = LSBFirst;
ximage.bitmap_pad = 8;
ximage.bytes_per_line = (width+7)/8;
TkPutImage(NULL, 0, display, pix, gc, &ximage, 0, 0, 0, 0, width, height);
XFreeGC(display, gc);
return pix;
}
/*
*----------------------------------------------------------------------
*
* XReadBitmapFile --
*
* Loads a bitmap image in X bitmap format into the specified
* drawable.
*
* Results:
* Sets the size, hotspot, and bitmap on success.
*
* Side effects:
* Creates a new bitmap from the file data.
*
*----------------------------------------------------------------------
*/
int
XReadBitmapFile(display, d, filename, width_return, height_return,
bitmap_return, x_hot_return, y_hot_return)
Display* display;
Drawable d;
_Xconst char* filename;
unsigned int* width_return;
unsigned int* height_return;
Pixmap* bitmap_return;
int* x_hot_return;
int* y_hot_return;
{
Tcl_Interp *dummy;
char *data;
dummy = Tcl_CreateInterp();
data = TkGetBitmapData(dummy, NULL, (char *) filename,
(int *) width_return, (int *) height_return, x_hot_return,
y_hot_return);
if (data == NULL) {
return BitmapFileInvalid;
}
*bitmap_return = XCreateBitmapFromData(display, d, data, *width_return,
*height_return);
Tcl_DeleteInterp(dummy);
ckfree(data);
return BitmapSuccess;
}
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