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WPrefs: replace X11 WidthOfScreen/HeightOfScreen with WMScreenWidth/Height 

WindowHandling.c and Icons.c called WidthOfScreen(DefaultScreenOfDisplay(
WMScreenDisplay(scr))) which dereferences NULL on Wayland (no X Display).
Use WMScreenWidth/WMScreenHeight instead — these work on both backends.

Also added temporary SIGSEGV backtrace handler to main.c for debugging.
This commit is contained in:
Window Maker 2026-05-24 16:54:34 +02:00
parent 50bc0d35aa
commit b2f878314c
3 changed files with 17 additions and 4 deletions
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4
WPrefs.app/Icons.c
View File

@ -264,8 +264,8 @@ static void createPanel(Panel * p)
* ratio as the screen.
*/
scr = WMWidgetScreen(panel->parent);
swidth = WidthOfScreen(DefaultScreenOfDisplay(WMScreenDisplay(scr)));
sheight = HeightOfScreen(DefaultScreenOfDisplay(WMScreenDisplay(scr)));
swidth = WMScreenWidth(scr);
sheight = WMScreenHeight(scr);
width = swidth * (122 - 15 * 2) / sheight;
if (width <= (240 - 15 * 2)) {

4
WPrefs.app/WindowHandling.c
View File

@ -342,8 +342,8 @@ static void createPanel(Panel * p)
* In this area, we want to have a rectangle with the same aspect
* ratio as the screen.
*/
swidth = WidthOfScreen(DefaultScreenOfDisplay(WMScreenDisplay(scr)));
sheight = HeightOfScreen(DefaultScreenOfDisplay(WMScreenDisplay(scr)));
swidth = WMScreenWidth(scr);
sheight = WMScreenHeight(scr);
width = swidth * (109 - 13) / sheight;
if (width <= (204 - 13)) {

13
WPrefs.app/main.c
View File

@ -26,6 +26,8 @@
#include <locale.h>
#include <signal.h>
#include <execinfo.h>
#include <sys/wait.h>
#include <unistd.h>
@ -78,6 +80,14 @@ void AddDeadChildHandler(pid_t pid, void (*handler) (void *), void *data)
assert(i != MAX_DEATHS);
}
static void crash_handler(int sig) {
void *bt[32];
int n = backtrace(bt, 32);
fprintf(stderr, "\n=== WPrefs CRASH (signal %d) ===\n", sig);
backtrace_symbols_fd(bt, n, STDERR_FILENO);
_exit(1);
}
int main(int argc, char **argv)
{
WMScreen *scr;
@ -85,6 +95,9 @@ int main(int argc, char **argv)
int i;
char *display_name = "";
signal(SIGSEGV, crash_handler);
signal(SIGABRT, crash_handler);
wsetabort(wAbort);
memset(DeadHandlers, 0, sizeof(DeadHandlers));