Initial revision

FossilOrigin-Name: 2bf55ca9aa942b581137b9f474da5ad9c1480de4

1 files changed, 115 insertions, 0 deletions

diff --git a/xlib/ximage.c b/xlib/ximage.c
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+++ b/xlib/ximage.c
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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;
+}