284 lines
10 KiB
C
284 lines
10 KiB
C
/*
|
|
|
|
* 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 <errno.h>
|
|
#include <libast.h>
|
|
|
|
#ifdef PIXMAP_SUPPORT
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/Xatom.h>
|
|
#include <X11/Xos.h>
|
|
#include <Imlib2.h>
|
|
|
|
void set_pixmap_property(Pixmap p);
|
|
|
|
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__,
|
|
(unsigned int) p, (unsigned int) prop_root, (unsigned int) 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__, (unsigned int) p, (unsigned int) *((Pixmap *) data_root),
|
|
(unsigned int) *((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__, (unsigned int) 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__, (unsigned int) p, (unsigned int) p);
|
|
}
|
|
XSetCloseDownMode(Xdisplay, RetainPermanent);
|
|
XFlush(Xdisplay);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
#ifdef PIXMAP_SUPPORT
|
|
unsigned char scale = 0, center = 0, fit = 0, mirror = 0;
|
|
char *displayname = NULL, *fname = NULL, *bgcolor = NULL;
|
|
Imlib_Image im;
|
|
Pixmap p = None, temp_pmap = None, m = None;
|
|
register unsigned char i;
|
|
GC gc;
|
|
XGCValues gcv;
|
|
XColor xcolor;
|
|
int w, h, x, y;
|
|
|
|
if (argc < 2) {
|
|
fprintf(stderr, "%s [-display <display_name>] [-bgcolor <color>] [-scale] [-center] [-fit] [-mirror] pixmap\n", *argv);
|
|
fprintf(stderr, "\t Short options are also recognized (-d, -b, -s, -c, -f, and -m)\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] == 'b') {
|
|
bgcolor = 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] == 'm') {
|
|
mirror = 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_name>] [-bgcolor <color>] [-scale] [-center] [-fit] [-mirror] pixmap\n", *argv);
|
|
fprintf(stderr, "\t Short options are also recognized (-d, -b, -s, -c, -f, and -m)\n");
|
|
exit(2);
|
|
}
|
|
}
|
|
|
|
fname = argv[i];
|
|
if (scale) {
|
|
center = 0;
|
|
mirror = 0;
|
|
}
|
|
|
|
if (debug) {
|
|
fprintf(stderr, "%s:%d: Display name is \"%s\"\n", __FILE__, __LINE__, displayname ? displayname : "(nil)");
|
|
fprintf(stderr, "%s:%d: Background color name is \"%s\"\n", __FILE__, __LINE__, bgcolor ? bgcolor : "(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__, (unsigned int) Xroot);
|
|
fprintf(stderr, "%s:%d: Found screen information at %8p\n", __FILE__, __LINE__, scr);
|
|
}
|
|
imlib_context_set_display(Xdisplay);
|
|
imlib_context_set_visual(DefaultVisual(Xdisplay, DefaultScreen(Xdisplay)));
|
|
im = imlib_load_image_immediately(fname);
|
|
if (!im) {
|
|
fprintf(stderr, "%s: Unable to load image file \"%s\".\n", *argv, fname);
|
|
exit(1);
|
|
} else if (debug) {
|
|
fprintf(stderr, "%s:%d: The Imlib Image is at %8p\n", __FILE__, __LINE__, im);
|
|
}
|
|
imlib_context_set_image(im);
|
|
if (scale) {
|
|
w = scr->width;
|
|
h = scr->height;
|
|
} else if (mirror) {
|
|
w = imlib_image_get_width() * 2;
|
|
h = imlib_image_get_height() * 2;
|
|
} else {
|
|
w = imlib_image_get_width();
|
|
h = imlib_image_get_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);
|
|
if (bgcolor && XParseColor(Xdisplay, DefaultColormap(Xdisplay, screen), bgcolor, &xcolor)
|
|
&& XAllocColor(Xdisplay, DefaultColormap(Xdisplay, screen), &xcolor)) {
|
|
gcv.foreground = gcv.background = xcolor.pixel;
|
|
}
|
|
gc = XCreateGC(Xdisplay, p, (GCForeground | GCBackground), &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,
|
|
(unsigned int) p);
|
|
fprintf(stderr, "%s:%d: Applied Graphics Context %8p to pixmap.\n", __FILE__, __LINE__, gc);
|
|
}
|
|
imlib_context_set_anti_alias(1);
|
|
imlib_context_set_dither(1);
|
|
imlib_context_set_blend(0);
|
|
if (mirror) {
|
|
temp_pmap = XCreatePixmap(Xdisplay, Xroot, w, h, Xdepth);
|
|
imlib_context_set_drawable(temp_pmap);
|
|
imlib_render_image_on_drawable(0, 0);
|
|
imlib_image_flip_horizontal();
|
|
imlib_render_image_on_drawable(imlib_image_get_width(), 0);
|
|
imlib_image_flip_vertical();
|
|
imlib_render_image_on_drawable(imlib_image_get_width(), imlib_image_get_height());
|
|
imlib_image_flip_horizontal();
|
|
imlib_render_image_on_drawable(0, imlib_image_get_height());
|
|
} else {
|
|
imlib_context_set_drawable(Xroot);
|
|
imlib_render_pixmaps_for_whole_image_at_size(&temp_pmap, &m, w, h);
|
|
}
|
|
if (debug) {
|
|
fprintf(stderr, "%s:%d: Rendered at %dx%d onto pixmap 0x%08x\n", __FILE__, __LINE__, w, h, (unsigned int) temp_pmap);
|
|
}
|
|
if (temp_pmap != None) {
|
|
if (m) {
|
|
XFreePixmap(Xdisplay, m);
|
|
m = 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);
|
|
}
|
|
XGrabServer(Xdisplay);
|
|
set_pixmap_property(p);
|
|
XSetWindowBackgroundPixmap(Xdisplay, Xroot, p);
|
|
XClearWindow(Xdisplay, Xroot);
|
|
XUngrabServer(Xdisplay);
|
|
XFlush(Xdisplay);
|
|
}
|
|
#else
|
|
USE_VAR(argc);
|
|
USE_VAR(argv);
|
|
fprintf(stderr, "Eterm was built without pixmap support, so Esetroot is fairly useless. Sorry.\n");
|
|
#endif
|
|
return 0;
|
|
}
|