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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libmb/mb.h>
#include <X11/extensions/Xrender.h>
#define VERSION "0.1"
void
set_motif_no_title_decoration_hint(Display *dpy,
Window win,
Bool border_only)
{
#define PROP_MOTIF_WM_HINTS_ELEMENTS 5
#define MWM_HINTS_DECORATIONS (1L << 1)
#define MWM_DECOR_BORDER (1L << 1)
typedef struct
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long inputMode;
unsigned long status;
} PropMotifWmHints;
PropMotifWmHints *hints;
Atom atom_MOTIF_WM_HINTS
= XInternAtom(dpy, "_MOTIF_WM_HINTS", False);
hints = malloc(sizeof(PropMotifWmHints));
memset(hints, 0, sizeof(PropMotifWmHints));
hints->flags = MWM_HINTS_DECORATIONS;
if (border_only)
hints->decorations = MWM_DECOR_BORDER;
else
hints->decorations = 0;
XChangeProperty(dpy, win, atom_MOTIF_WM_HINTS,
XA_ATOM, 32, PropModeReplace,
(unsigned char *)hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
free(hints);
return;
}
static Visual *
find_argb_visual (Display *dpy, int scr)
{
XVisualInfo *xvi;
XVisualInfo template;
int nvi;
int i;
XRenderPictFormat *format;
Visual *visual;
template.screen = scr;
template.depth = 32;
template.class = TrueColor;
xvi = XGetVisualInfo (dpy,
VisualScreenMask |
VisualDepthMask |
VisualClassMask,
&template,
&nvi);
if (!xvi)
return 0;
visual = 0;
for (i = 0; i < nvi; i++)
{
format = XRenderFindVisualFormat (dpy, xvi[i].visual);
if (format->type == PictTypeDirect && format->direct.alphaMask)
{
visual = xvi[i].visual;
break;
}
}
XFree (xvi);
return visual;
}
void
usage(char *progname)
{
fprintf(stderr,
"%s " VERSION " usage:\n"
"--image, -i <Image pathname>. ( default 'test.png')\n"
"--no-title, -nt Window has borders only\n"
"--no-border, -nb Window has no decorations\n"
"--override-redirect, -or Window is overide redirect\n"
"--pos, -p <x,y> Window position\n"
"--move, -m <x,y,z> Move window by x,y in z steps\n"
"--help, -h Show this help\n",
progname);
exit(1);
}
int
main(int argc, char **argv)
{
Display *dpy;
Window winroot, win;
int screen;
GC gc;
MBPixbuf *pb;
MBPixbufImage *img;
int depth = 32;
Visual *vis;
XEvent xev;
Pixmap pxm;
XSetWindowAttributes attributes;
unsigned long attributemask = 0;
Bool is_no_title = False;
Bool is_no_border = False;
Bool is_override = False;
int i, x1 = 0, y1 = 0, x2 = -1 , y2 = -1, n_steps = 0;
char *imgpath = "test.png";
for (i = 1; i < argc; i++) {
if (!strcmp ("--image", argv[i]) || !strcmp ("-i", argv[i])) {
if (++i>=argc) usage (argv[0]);
imgpath = argv[i];
continue;
}
if (!strcmp ("--pos", argv[i]) || !strcmp ("-p", argv[i])) {
char *p = NULL;
if (++i>=argc) usage (argv[0]);
if ((p = strchr(argv[i], ',')) == NULL) usage (argv[0]);
*p='\0'; p++;
x1 = atoi(argv[i]);
y1 = atoi(p);
continue;
}
if (!strcmp ("--move", argv[i]) || !strcmp ("-m", argv[i])) {
if (++i>=argc)
usage (argv[0]);
if (sscanf(argv[i], "%d,%d,%d", &x2, &y2, &n_steps) != 3)
usage (argv[0]);
continue;
}
if (!strcmp ("--no-title", argv[i]) || !strcmp ("-nt", argv[i])) {
is_no_title = True;
continue;
}
if (!strcmp ("--no-border", argv[i]) || !strcmp ("-nb", argv[i])) {
is_no_border = True;
continue;
}
if (!strcmp ("--override-redirect", argv[i]) || !strcmp ("-or", argv[i])) {
is_override = True;
continue;
}
if (!strcmp("--help", argv[i]) || !strcmp("-h", argv[i])) {
usage(argv[0]);
}
usage(argv[0]);
}
if ((dpy = XOpenDisplay(getenv("DISPLAY"))) == NULL)
{
fprintf(stderr, "Unable to open DISPLAY. Giving up.\n");
return 1;
}
screen = DefaultScreen(dpy);
winroot = RootWindow(dpy, screen);
vis = find_argb_visual (dpy, screen);
if (!vis)
{
fprintf(stderr, "failed to find argb32 visual\n");
return 1;
}
pb = mb_pixbuf_new_extended(dpy, screen, vis, 32);
img = mb_pixbuf_img_new_from_file(pb, imgpath);
if (!img)
{
fprintf(stderr, "failed to load image '%s'\n", imgpath);
return 1;
}
if (is_override)
attributes.override_redirect = True;
else
attributes.override_redirect = False;
attributes.background_pixel = 1;
attributes.border_pixel = 1;
attributes.colormap = XCreateColormap (dpy, winroot, vis, AllocNone);
attributemask = (CWBackPixel|
CWBorderPixel|
CWColormap|
CWOverrideRedirect);
win = XCreateWindow (dpy, winroot,
x1, y1,
mb_pixbuf_img_get_width(img),
mb_pixbuf_img_get_height(img),
0, depth,
InputOutput,
vis,
attributemask, &attributes);
if ( is_no_title || is_no_border )
set_motif_no_title_decoration_hint(dpy, win, is_no_title);
XStoreName(dpy, win, imgpath);
pxm = XCreatePixmap(dpy, winroot,
mb_pixbuf_img_get_width(img),
mb_pixbuf_img_get_height(img),
depth);
pb->gc = XCreateGC(dpy, pxm, 0, 0);
XFlush(dpy); /* Needed ? */
mb_pixbuf_img_render_to_drawable(pb, img, pxm, 0, 0);
XSetWindowBackgroundPixmap(dpy, win, pxm);
XClearWindow(dpy, win);
XSetTransientForHint(dpy, win, winroot);
XMapWindow(dpy, win);
XFlush(dpy);
/* Move the window */
if (x2 != -1 && y2 != -1)
{
int i;
XSync(dpy, True);
for (i=0; i < n_steps; i++)
{
XMoveWindow(dpy, win,
x1 + (( x2 / n_steps) * i ),
y1 + (( y2 / n_steps) * i ));
// XSync(dpy, True);
}
}
for (;;)
XNextEvent(dpy, &xev);
}
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