MonitorManager *monitor_mgr_create()
{
Display *display = XOpenDisplay(NULL);
if (!display)
{
fprintf(stderr, "Cannot open display.\n");
return NULL;
}
MonitorManager *mgr = malloc(sizeof(MonitorManager*));
mgr->monitor_count = 0;
mgr->monitors = NULL;
Window root = DefaultRootWindow(display);
RROutput primary_output = XRRGetOutputPrimary(display, root);
XRRScreenResources *screen = XRRGetScreenResources(display, root);
assert(screen);
for (int i = 0; i < screen->noutput; i++)
{
XRROutputInfo *output_info = XRRGetOutputInfo(
display, screen, screen->outputs[i]);
assert(output_info);
if (output_info->connection == RR_Connected)
{
XRRCrtcInfo *crtc_info = XRRGetCrtcInfo(
display, screen, output_info->crtc);
assert(crtc_info);
int primary = 0;
for (int j = 0; j < crtc_info->noutput; j++)
if (crtc_info->outputs[j] == primary_output)
primary = 1;
Monitor *monitor = monitor_create(
primary,
crtc_info->x,
crtc_info->y,
crtc_info->width,
crtc_info->height);
assert(monitor);
monitor_mgr_add(mgr, monitor);
XRRFreeCrtcInfo(crtc_info);
}
XRRFreeOutputInfo(output_info);
}
XRRFreeScreenResources(screen);
XCloseDisplay(display);
return mgr;
}
static BOOL CALLBACK callback(
HMONITOR hmonitor, HDC hdc, LPRECT rect, LPARAM data)
{
UNUSED(hmonitor);
UNUSED(hdc);
MonitorManager *mgr = (MonitorManager*)data;
assert(mgr);
Monitor *monitor = monitor_create(
mgr->monitor_count == 0,
rect->left,
rect->top,
rect->right - rect->left,
rect->bottom - rect->top);
assert(monitor);
monitor_mgr_add(mgr, monitor);
return TRUE;
}
