slock/patch/background_image.c
2022-03-28 14:23:34 +02:00

47 lines
1.5 KiB
C

#include <Imlib2.h>
Imlib_Image image;
void
render_lock_image(Display *dpy, struct lock *lock, Imlib_Image image)
{
if (image) {
lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
imlib_context_set_drawable(lock->bgmap);
imlib_render_image_on_drawable(0, 0);
imlib_free_image();
}
}
void
create_lock_image(Display *dpy)
{
/* Load picture */
Imlib_Image buffer = imlib_load_image(background_image);
imlib_context_set_image(buffer);
int background_image_width = imlib_image_get_width();
int background_image_height = imlib_image_get_height();
/* Create an image to be rendered */
Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
image = imlib_create_image(scr->width, scr->height);
imlib_context_set_image(image);
/* Fill the image for every X monitor */
XRRMonitorInfo *monitors;
int number_of_monitors;
monitors = XRRGetMonitors(dpy, RootWindow(dpy, XScreenNumberOfScreen(scr)), True, &number_of_monitors);
int i;
for (i = 0; i < number_of_monitors; i++) {
imlib_blend_image_onto_image(buffer, 0, 0, 0, background_image_width, background_image_height, monitors[i].x, monitors[i].y, monitors[i].width, monitors[i].height);
}
/* Clean up */
imlib_context_set_image(buffer);
imlib_free_image();
imlib_context_set_image(image);
}