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/*
* Esetroot -- Set the root pixmap. This program enables non-Enlightenment
* users to use Eterm's support for pseudotransparency.
*
* Written by Nat Friedman <ndf@mit.edu> with modifications by Gerald Britton
* <gbritton@mit.edu> and Michael Jennings <mej@eterm.org>
*
*/
static const char cvs_ident[] = "$Id$";
#include "../config.h"
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/Xos.h>
#include <Imlib.h>
Display *Xdisplay;
Screen *scr;
Window Xroot;
int screen;
unsigned char debug = 0;
#define Xdepth (DefaultDepth(Xdisplay, screen))
void
set_pixmap_property(Pixmap p)
{
Atom prop_root, prop_esetroot, type;
int format;
unsigned long length, after;
unsigned char *data_root, *data_esetroot;
prop_root = XInternAtom(Xdisplay, "_XROOTPMAP_ID", True);
prop_esetroot = XInternAtom(Xdisplay, "ESETROOT_PMAP_ID", True);
if (debug) {
fprintf(stderr, "%s:%d: set_pixmap_property(0x%08x): prop_root == 0x%08x, prop_esetroot == 0x%08x\n", __FILE__, __LINE__,
p, prop_root, prop_esetroot);
}
if (prop_root != None && prop_esetroot != None) {
XGetWindowProperty(Xdisplay, Xroot, prop_root, 0L, 1L, False, AnyPropertyType,
&type, &format, &length, &after, &data_root);
if (type == XA_PIXMAP) {
XGetWindowProperty(Xdisplay, Xroot, prop_esetroot, 0L, 1L, False, AnyPropertyType,
&type, &format, &length, &after, &data_esetroot);
if (data_root && data_esetroot) {
if (debug) {
fprintf(stderr, "%s:%d: set_pixmap_property(0x%08x): data_root == 0x%08x, data_esetroot == 0x%08x\n", __FILE__, __LINE__,
p, *((Pixmap *) data_root), *((Pixmap *) data_esetroot));
}
if (type == XA_PIXMAP && *((Pixmap *) data_root) == *((Pixmap *) data_esetroot)) {
if (debug) {
fprintf(stderr, "%s:%d: set_pixmap_property(0x%08x): XKillClient() is being called.\n", __FILE__, __LINE__, p);
}
XKillClient(Xdisplay, *((Pixmap *) data_root));
}
}
}
}
/* This will locate the property, creating it if it doesn't exist */
prop_root = XInternAtom(Xdisplay, "_XROOTPMAP_ID", False);
prop_esetroot = XInternAtom(Xdisplay, "ESETROOT_PMAP_ID", False);
/* The call above should have created it. If that failed, we can't continue. */
if (prop_root == None || prop_esetroot == None) {
fprintf(stderr, "Esetroot: creation of pixmap property failed.\n");
exit(1);
}
XChangeProperty(Xdisplay, Xroot, prop_root, XA_PIXMAP, 32, PropModeReplace,
(unsigned char *) &p, 1);
XChangeProperty(Xdisplay, Xroot, prop_esetroot, XA_PIXMAP, 32, PropModeReplace,
(unsigned char *) &p, 1);
if (debug) {
fprintf(stderr, "%s:%d: set_pixmap_property(0x%08x): _XROOTPMAP_ID and ESETROOT_PMAP_ID set to 0x%08x.\n", __FILE__, __LINE__, p, p);
}
XSetCloseDownMode(Xdisplay, RetainPermanent);
XFlush(Xdisplay);
}
int
main(int argc, char *argv[])
{
unsigned char scale = 0, center = 0, fit = 0;
char *displayname = NULL;
char *fname = NULL;
ImlibData *id;
ImlibImage *im;
ImlibInitParams params;
Pixmap p, temp_pmap;
register unsigned char i;
GC gc;
XGCValues gcv;
int w, h, x, y;
if (argc < 2) {
fprintf(stderr, "%s [-display <display_name>] [-scale] [-center] [-fit] pixmap\n", *argv);
fprintf(stderr, "\t Short options are also recognized (-d, -s, -c, and -f)\n");
exit(0);
}
for (i = 1; i < argc; i++) {
if (*argv[i] != '-') {
break;
}
if (argv[i][1] == 'd') {
displayname = argv[++i];
} else if (argv[i][1] == 's') {
scale = 1;
} else if (argv[i][1] == 'c') {
center = 1;
} else if (argv[i][1] == 'f') {
fit = 1;
} else if (argv[i][1] == 'x') {
fprintf(stderr, "Debugging activated.\n");
debug = 1;
} else {
fprintf(stderr, "%s: Unrecognized option \'%c\'\n\n", *argv, argv[i][1]);
fprintf(stderr, "%s [-display display] [-scale] pixmap\n", *argv);
fprintf(stderr, "\t Short options are also recognized (-d and -s)\n");
exit(2);
}
}
fname = argv[i];
if (scale)
center = 0;
if (debug) {
fprintf(stderr, "%s:%d: Display name is \"%s\"\n", __FILE__, __LINE__, displayname ? displayname : "(nil)");
fprintf(stderr, "%s:%d: Image will be %s\n", __FILE__, __LINE__, scale ? "scaled" : (center ? "centered" : (fit ? "fit" : "tiled")));
fprintf(stderr, "%s:%d: Image file is %s\n", __FILE__, __LINE__, fname ? fname : "(nil)");
}
if (!displayname) {
displayname = getenv("DISPLAY");
if (debug) {
fprintf(stderr, "%s:%d: Display name set to %s via getenv(\"DISPLAY\")\n", __FILE__, __LINE__, displayname ? displayname : "(nil)");
}
}
if (!displayname) {
displayname = ":0.0";
if (debug) {
fprintf(stderr, "%s:%d: Display name defaulted to %s\n", __FILE__, __LINE__, displayname ? displayname : "(nil)");
}
}
if ((Xdisplay = XOpenDisplay(displayname)) == 0) {
fprintf(stderr, "%s: Unable to open display %s\n", *argv, displayname);
exit(1);
}
screen = DefaultScreen(Xdisplay);
Xroot = RootWindow(Xdisplay, screen);
scr = ScreenOfDisplay(Xdisplay, screen);
if (debug) {
fprintf(stderr, "%s:%d: Chose screen %d\n", __FILE__, __LINE__, screen);
fprintf(stderr, "%s:%d: Root window is 0x%08x\n", __FILE__, __LINE__, Xroot);
fprintf(stderr, "%s:%d: Found screen information at 0x%08x\n", __FILE__, __LINE__, scr);
}
params.flags = PARAMS_VISUALID;
params.visualid = (DefaultVisual(Xdisplay, screen))->visualid;
id = Imlib_init_with_params(Xdisplay, ¶ms);
im = Imlib_load_image(id, fname);
if (debug) {
fprintf(stderr, "%s:%d: The Imlib Data is at 0x%08x\n", __FILE__, __LINE__, id);
fprintf(stderr, "%s:%d: The Imlib Image is at 0x%08x\n", __FILE__, __LINE__, im);
}
if (scale) {
w = scr->width;
h = scr->height;
} else {
w = im->rgb_width;
h = im->rgb_height;
}
if (fit) {
double x_ratio, y_ratio;
x_ratio = ((double) scr->width) / ((double) w);
y_ratio = ((double) scr->height) / ((double) h);
if (x_ratio > y_ratio) {
x_ratio = y_ratio;
}
w = (int) (w * x_ratio);
h = (int) (h * x_ratio);
}
p = XCreatePixmap(Xdisplay, Xroot, scr->width, scr->height, Xdepth);
gcv.foreground = gcv.background = BlackPixel(Xdisplay, screen);
gc = XCreateGC(Xdisplay, p, ((center || fit) ? (GCForeground | GCBackground) : 0), &gcv);
if (scale) {
XFillRectangle(Xdisplay, p, gc, 0, 0, w, h);
}
if (center || fit) {
XFillRectangle(Xdisplay, p, gc, 0, 0, scr->width, scr->height);
x = (scr->width - w) >> 1;
y = (scr->height - h) >> 1;
} else {
x = 0;
y = 0;
}
if (debug) {
fprintf(stderr, "%s:%d: Assigned width and height for rendering as %dx%d\n", __FILE__, __LINE__, w, h);
fprintf(stderr, "%s:%d: Created %dx%d+%d+%d pixmap 0x%08x\n", __FILE__, __LINE__, scr->width, scr->height, x, y, p);
fprintf(stderr, "%s:%d: Applied Graphics Context 0x%08x to pixmap.\n", __FILE__, __LINE__, gc);
}
Imlib_render(id, im, w, h);
temp_pmap = Imlib_move_image(id, im);
if (debug) {
fprintf(stderr, "%s:%d: Rendered at %dx%d onto pixmap 0x%08x\n", __FILE__, __LINE__, w, h, temp_pmap);
}
if (temp_pmap != None) {
XSetTile(Xdisplay, gc, temp_pmap);
XSetTSOrigin(Xdisplay, gc, x, y);
XSetFillStyle(Xdisplay, gc, FillTiled);
if (center || fit) {
XFillRectangle(Xdisplay, p, gc, x, y, w, h);
} else {
XFillRectangle(Xdisplay, p, gc, x, y, scr->width, scr->height);
}
set_pixmap_property(p);
XFlush(Xdisplay);
XSetWindowBackgroundPixmap(Xdisplay, Xroot, p);
XClearWindow(Xdisplay, Xroot);
XFlush(Xdisplay);
}
return 0;
}
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