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150 lines
5.3 KiB
150 lines
5.3 KiB
From 1c5a5383a1cf3351fe9c80a21cfbc98c5ec4355d Mon Sep 17 00:00:00 2001
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From: Yan Doroshenko <yan1994doroshenko@gmail.com>
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Date: Fri, 18 Mar 2022 12:28:13 +0100
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Subject: [PATCH] Provide a way to set a background image
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---
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config.def.h | 5 ++++-
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config.mk | 2 +-
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slock.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++---
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3 files changed, 52 insertions(+), 5 deletions(-)
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diff --git a/config.def.h b/config.def.h
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index 9855e21..eb88b3d 100644
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--- a/config.def.h
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+++ b/config.def.h
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@@ -1,6 +1,6 @@
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/* user and group to drop privileges to */
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static const char *user = "nobody";
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-static const char *group = "nogroup";
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+static const char *group = "nobody";
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static const char *colorname[NUMCOLS] = {
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[INIT] = "black", /* after initialization */
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@@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = {
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/* treat a cleared input like a wrong password (color) */
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static const int failonclear = 1;
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+
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+/* Background image path, should be available to the user above */
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+static const char* background_image = "";
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diff --git a/config.mk b/config.mk
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index 74429ae..987819e 100644
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--- a/config.mk
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+++ b/config.mk
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@@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib
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# includes and libs
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INCS = -I. -I/usr/include -I${X11INC}
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-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
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+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2
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# flags
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CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
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diff --git a/slock.c b/slock.c
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index 5ae738c..345a279 100644
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--- a/slock.c
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+++ b/slock.c
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@@ -18,6 +18,7 @@
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#include <X11/keysym.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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+#include <Imlib2.h>
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#include "arg.h"
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#include "util.h"
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@@ -35,6 +36,7 @@ struct lock {
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int screen;
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Window root, win;
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Pixmap pmap;
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+ Pixmap bgmap;
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unsigned long colors[NUMCOLS];
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};
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@@ -46,6 +48,8 @@ struct xrandr {
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#include "config.h"
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+Imlib_Image image;
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+
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static void
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die(const char *errstr, ...)
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{
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@@ -190,9 +194,10 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
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color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
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if (running && oldc != color) {
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for (screen = 0; screen < nscreens; screen++) {
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- XSetWindowBackground(dpy,
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- locks[screen]->win,
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- locks[screen]->colors[color]);
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+ if (locks[screen]->bgmap)
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+ XSetWindowBackgroundPixmap(dpy, locks[screen]->win, locks[screen]->bgmap);
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+ else
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+ XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[0]);
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XClearWindow(dpy, locks[screen]->win);
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}
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oldc = color;
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@@ -235,6 +240,17 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
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lock->screen = screen;
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lock->root = RootWindow(dpy, lock->screen);
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+ if(image)
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+ {
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+ lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
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+ imlib_context_set_display(dpy);
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+ imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
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+ imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
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+ imlib_context_set_drawable(lock->bgmap);
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+ imlib_render_image_on_drawable(0, 0);
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+ imlib_free_image();
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+ }
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+
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for (i = 0; i < NUMCOLS; i++) {
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XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
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colorname[i], &color, &dummy);
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@@ -251,6 +267,8 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
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CopyFromParent,
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DefaultVisual(dpy, lock->screen),
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CWOverrideRedirect | CWBackPixel, &wa);
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+ if(lock->bgmap)
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+ XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap);
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lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
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invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
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&color, &color, 0, 0);
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@@ -355,6 +373,32 @@ main(int argc, char **argv) {
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if (setuid(duid) < 0)
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die("slock: setuid: %s\n", strerror(errno));
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+ /* Load picture */
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+ Imlib_Image buffer = imlib_load_image(background_image);
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+ imlib_context_set_image(buffer);
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+ int background_image_width = imlib_image_get_width();
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+ int background_image_height = imlib_image_get_height();
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+
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+ /* Create an image to be rendered */
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+ Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
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+ image = imlib_create_image(scr->width, scr->height);
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+ imlib_context_set_image(image);
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+
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+ /* Fill the image for every X monitor */
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+ XRRMonitorInfo *monitors;
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+ int number_of_monitors;
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+ monitors = XRRGetMonitors(dpy, RootWindow(dpy, XScreenNumberOfScreen(scr)), True, &number_of_monitors);
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+
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+ int i;
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+ for (i = 0; i < number_of_monitors; i++) {
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+ 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);
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+ }
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+
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+ /* Clean up */
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+ imlib_context_set_image(buffer);
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+ imlib_free_image();
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+ imlib_context_set_image(image);
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+
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/* check for Xrandr support */
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rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
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--
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2.35.1
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