X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Ftint2;a=blobdiff_plain;f=src%2Fserver.c;h=053b41f29d43fe287526c7631cb022451decf90b;hp=cdfa969350b8a2519c3538e75212e51817f9a505;hb=1aa4d290a90cfc14416f43b205523a6bf401d973;hpb=d1123a0ede12eb1126eb5eb932d9177de67d46c5

diff --git a/src/server.c b/src/server.c
index cdfa969..053b41f 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1,10 +1,10 @@
 /**************************************************************************
 *
 * Tint2 panel
-* 
+*
 * Copyright (C) 2007 PÃ¥l Staurland (staura@gmail.com)
 * Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
-* 
+*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
@@ -18,199 +18,383 @@
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 **************************************************************************/
 
+#include <X11/extensions/Xrender.h>
+#include <X11/extensions/Xrandr.h>
+
+
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "server.h"
-#include "panel.h"
+#include "config.h"
 #include "task.h"
 #include "window.h"
 
 void server_catch_error (Display *d, XErrorEvent *ev){}
 
-
 void server_init_atoms ()
 {
-   server.atom._XROOTPMAP_ID = XInternAtom (server.dsp, "_XROOTPMAP_ID", False);
-   server.atom._NET_CURRENT_DESKTOP = XInternAtom (server.dsp, "_NET_CURRENT_DESKTOP", False);
-   server.atom._NET_NUMBER_OF_DESKTOPS = XInternAtom (server.dsp, "_NET_NUMBER_OF_DESKTOPS", False);
-   server.atom._NET_DESKTOP_GEOMETRY = XInternAtom (server.dsp, "_NET_DESKTOP_GEOMETRY", False);
-   server.atom._NET_DESKTOP_VIEWPORT = XInternAtom (server.dsp, "_NET_DESKTOP_VIEWPORT", False);
-   server.atom._NET_ACTIVE_WINDOW = XInternAtom (server.dsp, "_NET_ACTIVE_WINDOW", False);
-   server.atom._NET_WM_WINDOW_TYPE = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE", False);
-   server.atom._NET_WM_STATE_SKIP_PAGER = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_PAGER", False);
-   server.atom._NET_WM_STATE_SKIP_TASKBAR = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_TASKBAR", False);
-   server.atom._NET_WM_STATE_STICKY = XInternAtom (server.dsp, "_NET_WM_STATE_STICKY", False);
-   server.atom._NET_WM_WINDOW_TYPE_DOCK = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DOCK", False);
-   server.atom._NET_WM_WINDOW_TYPE_DESKTOP = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
-   server.atom._NET_WM_WINDOW_TYPE_TOOLBAR = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
-   server.atom._NET_WM_WINDOW_TYPE_MENU = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_MENU", False);
-   server.atom._NET_WM_WINDOW_TYPE_SPLASH = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_SPLASH", False);
-   server.atom._NET_WM_WINDOW_TYPE_DIALOG = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DIALOG", False);
-   server.atom._NET_WM_WINDOW_TYPE_NORMAL = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_NORMAL", False);
-   server.atom._NET_WM_DESKTOP = XInternAtom (server.dsp, "_NET_WM_DESKTOP", False);
-   server.atom.WM_STATE = XInternAtom (server.dsp, "WM_STATE", False);
-   server.atom._NET_WM_STATE = XInternAtom (server.dsp, "_NET_WM_STATE", False);
-   server.atom._NET_WM_STATE_SHADED = XInternAtom (server.dsp, "_NET_WM_STATE_SHADED", False);
-   server.atom._NET_WM_STATE_BELOW = XInternAtom (server.dsp, "_NET_WM_STATE_BELOW", False);
-   server.atom._NET_WM_STATE_MODAL = XInternAtom (server.dsp, "_NET_WM_STATE_MODAL", False);
-   server.atom._NET_CLIENT_LIST = XInternAtom (server.dsp, "_NET_CLIENT_LIST", False);
-   server.atom._NET_WM_VISIBLE_NAME = XInternAtom (server.dsp, "_NET_WM_VISIBLE_NAME", False);
-   server.atom._NET_WM_NAME = XInternAtom (server.dsp, "_NET_WM_NAME", False);
-   server.atom._NET_WM_STRUT = XInternAtom (server.dsp, "_NET_WM_STRUT", False);
-   server.atom._NET_WM_ICON = XInternAtom (server.dsp, "_NET_WM_ICON", False);
-   server.atom._NET_CLOSE_WINDOW = XInternAtom (server.dsp, "_NET_CLOSE_WINDOW", False);
-   server.atom.UTF8_STRING = XInternAtom (server.dsp, "UTF8_STRING", False);
-   server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_SUPPORTING_WM_CHECK", False);
-   server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_WM_NAME", False);
-   server.atom._WIN_LAYER = XInternAtom (server.dsp, "_WIN_LAYER", False);
-   server.atom._NET_WM_STRUT_PARTIAL = XInternAtom (server.dsp, "_NET_WM_STRUT_PARTIAL", False);
-   server.atom.WM_NAME = XInternAtom(server.dsp, "WM_NAME", False);
+	server.atom._XROOTPMAP_ID = XInternAtom (server.dsp, "_XROOTPMAP_ID", False);
+	server.atom._NET_CURRENT_DESKTOP = XInternAtom (server.dsp, "_NET_CURRENT_DESKTOP", False);
+	server.atom._NET_NUMBER_OF_DESKTOPS = XInternAtom (server.dsp, "_NET_NUMBER_OF_DESKTOPS", False);
+	server.atom._NET_DESKTOP_NAMES = XInternAtom (server.dsp, "_NET_DESKTOP_NAMES", False);
+	server.atom._NET_DESKTOP_GEOMETRY = XInternAtom (server.dsp, "_NET_DESKTOP_GEOMETRY", False);
+	server.atom._NET_DESKTOP_VIEWPORT = XInternAtom (server.dsp, "_NET_DESKTOP_VIEWPORT", False);
+	server.atom._NET_ACTIVE_WINDOW = XInternAtom (server.dsp, "_NET_ACTIVE_WINDOW", False);
+	server.atom._NET_WM_WINDOW_TYPE = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE", False);
+	server.atom._NET_WM_STATE_SKIP_PAGER = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_PAGER", False);
+	server.atom._NET_WM_STATE_SKIP_TASKBAR = XInternAtom (server.dsp, "_NET_WM_STATE_SKIP_TASKBAR", False);
+	server.atom._NET_WM_STATE_STICKY = XInternAtom (server.dsp, "_NET_WM_STATE_STICKY", False);
+	server.atom._NET_WM_STATE_DEMANDS_ATTENTION = XInternAtom (server.dsp, "_NET_WM_STATE_DEMANDS_ATTENTION", False);
+	server.atom._NET_WM_WINDOW_TYPE_DOCK = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DOCK", False);
+	server.atom._NET_WM_WINDOW_TYPE_DESKTOP = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
+	server.atom._NET_WM_WINDOW_TYPE_TOOLBAR = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
+	server.atom._NET_WM_WINDOW_TYPE_MENU = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_MENU", False);
+	server.atom._NET_WM_WINDOW_TYPE_SPLASH = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_SPLASH", False);
+	server.atom._NET_WM_WINDOW_TYPE_DIALOG = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+	server.atom._NET_WM_WINDOW_TYPE_NORMAL = XInternAtom (server.dsp, "_NET_WM_WINDOW_TYPE_NORMAL", False);
+	server.atom._NET_WM_DESKTOP = XInternAtom (server.dsp, "_NET_WM_DESKTOP", False);
+	server.atom.WM_STATE = XInternAtom (server.dsp, "WM_STATE", False);
+	server.atom._NET_WM_STATE = XInternAtom (server.dsp, "_NET_WM_STATE", False);
+	server.atom._NET_WM_STATE_MAXIMIZED_VERT = XInternAtom (server.dsp, "_NET_WM_STATE_MAXIMIZED_VERT", False);
+	server.atom._NET_WM_STATE_MAXIMIZED_HORZ = XInternAtom (server.dsp, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
+	server.atom._NET_WM_STATE_SHADED = XInternAtom (server.dsp, "_NET_WM_STATE_SHADED", False);
+	server.atom._NET_WM_STATE_HIDDEN = XInternAtom (server.dsp, "_NET_WM_STATE_HIDDEN", False);
+	server.atom._NET_WM_STATE_BELOW = XInternAtom (server.dsp, "_NET_WM_STATE_BELOW", False);
+	server.atom._NET_WM_STATE_ABOVE = XInternAtom (server.dsp, "_NET_WM_STATE_ABOVE", False);
+	server.atom._NET_WM_STATE_MODAL = XInternAtom (server.dsp, "_NET_WM_STATE_MODAL", False);
+	server.atom._NET_CLIENT_LIST = XInternAtom (server.dsp, "_NET_CLIENT_LIST", False);
+	server.atom._NET_WM_VISIBLE_NAME = XInternAtom (server.dsp, "_NET_WM_VISIBLE_NAME", False);
+	server.atom._NET_WM_NAME = XInternAtom (server.dsp, "_NET_WM_NAME", False);
+	server.atom._NET_WM_STRUT = XInternAtom (server.dsp, "_NET_WM_STRUT", False);
+	server.atom._NET_WM_ICON = XInternAtom (server.dsp, "_NET_WM_ICON", False);
+	server.atom._NET_WM_ICON_GEOMETRY = XInternAtom(server.dsp, "_NET_WM_ICON_GEOMETRY", False );
+	server.atom._NET_CLOSE_WINDOW = XInternAtom (server.dsp, "_NET_CLOSE_WINDOW", False);
+	server.atom.UTF8_STRING = XInternAtom (server.dsp, "UTF8_STRING", False);
+	server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_SUPPORTING_WM_CHECK", False);
+	server.atom._NET_WM_CM_S0 = XInternAtom (server.dsp, "_NET_WM_CM_S0", False);
+	server.atom._NET_SUPPORTING_WM_CHECK = XInternAtom (server.dsp, "_NET_WM_NAME", False);
+	server.atom._NET_WM_STRUT_PARTIAL = XInternAtom (server.dsp, "_NET_WM_STRUT_PARTIAL", False);
+	server.atom.WM_NAME = XInternAtom(server.dsp, "WM_NAME", False);
+	server.atom.__SWM_VROOT = XInternAtom(server.dsp, "__SWM_VROOT", False);
+	server.atom._MOTIF_WM_HINTS = XInternAtom(server.dsp, "_MOTIF_WM_HINTS", False);
+	server.atom.WM_HINTS = XInternAtom(server.dsp, "WM_HINTS", False);
+
+	// systray protocol
+	char *name_trayer = g_strdup_printf("_NET_SYSTEM_TRAY_S%d", DefaultScreen(server.dsp));
+	server.atom._NET_SYSTEM_TRAY_SCREEN = XInternAtom(server.dsp, name_trayer, False);
+	server.atom._NET_SYSTEM_TRAY_OPCODE = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_OPCODE", False);
+	server.atom.MANAGER = XInternAtom(server.dsp, "MANAGER", False);
+	server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
+	server.atom._NET_SYSTEM_TRAY_ORIENTATION = XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_ORIENTATION", False);
+	server.atom._XEMBED = XInternAtom(server.dsp, "_XEMBED", False);
+	server.atom._XEMBED_INFO = XInternAtom(server.dsp, "_XEMBED_INFO", False);
+	g_free(name_trayer);
+
+	// drag 'n' drop
+	server.atom.XdndAware = XInternAtom(server.dsp, "XdndAware", False);
+	server.atom.XdndPosition = XInternAtom(server.dsp, "XdndPosition", False);
+	server.atom.XdndStatus = XInternAtom(server.dsp, "XdndStatus", False);
+	server.atom.XdndLeave = XInternAtom(server.dsp, "XdndLeave", False);
+}
+
+
+void cleanup_server()
+{
+	if (server.colormap) XFreeColormap(server.dsp, server.colormap);
+	if (server.colormap32) XFreeColormap(server.dsp, server.colormap32);
+	if (server.monitor) {
+		int i;
+		for (i=0; i<server.nb_monitor; ++i)
+			if (server.monitor[i].names)
+				g_strfreev(server.monitor[i].names);
+		free(server.monitor);
+	}
+	if (server.gc) XFreeGC(server.dsp, server.gc);
 }
 
 
-void send_event32 (Window win, Atom at, long data1, long data2)
+void send_event32 (Window win, Atom at, long data1, long data2, long data3)
 {
-   XEvent event;
-
-   event.xclient.type = ClientMessage;
-   event.xclient.serial = 0;
-   event.xclient.send_event = True;
-   event.xclient.display = server.dsp;
-   event.xclient.window = win;
-   event.xclient.message_type = at;
-
-   event.xclient.format = 32;
-   event.xclient.data.l[0] = data1;
-   event.xclient.data.l[1] = data2;
-   event.xclient.data.l[2] = 0;
-   event.xclient.data.l[3] = 0;
-   event.xclient.data.l[4] = 0;
-
-   XSendEvent(server.dsp, server.root_win, False, SubstructureRedirectMask|SubstructureNotifyMask, &event);
+	XEvent event;
+
+	event.xclient.type = ClientMessage;
+	event.xclient.serial = 0;
+	event.xclient.send_event = True;
+	event.xclient.display = server.dsp;
+	event.xclient.window = win;
+	event.xclient.message_type = at;
+
+	event.xclient.format = 32;
+	event.xclient.data.l[0] = data1;
+	event.xclient.data.l[1] = data2;
+	event.xclient.data.l[2] = data3;
+	event.xclient.data.l[3] = 0;
+	event.xclient.data.l[4] = 0;
+
+	XSendEvent(server.dsp, server.root_win, False, SubstructureRedirectMask|SubstructureNotifyMask, &event);
 }
 
 
 int get_property32 (Window win, Atom at, Atom type)
 {
-   Atom type_ret;
-   int format_ret = 0, data = 0;
-   unsigned long nitems_ret = 0;
-   unsigned long bafter_ret = 0;
-   unsigned char *prop_value = 0;
-   int result;
-
-   if (!win) return 0;
-
-   result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
-
-   if (result == Success && prop_value) {
-      data = ((gulong*)prop_value)[0];
-      XFree (prop_value);
-   }
-   return data;
+	Atom type_ret;
+	int format_ret = 0, data = 0;
+	unsigned long nitems_ret = 0;
+	unsigned long bafter_ret = 0;
+	unsigned char *prop_value = 0;
+	int result;
+
+	if (!win) return 0;
+
+	result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
+
+	if (result == Success && prop_value) {
+		data = ((gulong*)prop_value)[0];
+		XFree (prop_value);
+	}
+	return data;
 }
 
 
 void *server_get_property (Window win, Atom at, Atom type, int *num_results)
 {
-   Atom type_ret;
-   int format_ret = 0;
-   unsigned long nitems_ret = 0;
-   unsigned long bafter_ret = 0;
-   unsigned char *prop_value;
-   int result;
+	Atom type_ret;
+	int format_ret = 0;
+	unsigned long nitems_ret = 0;
+	unsigned long bafter_ret = 0;
+	unsigned char *prop_value;
+	int result;
 
-   if (!win) return 0;
+	if (!win) return 0;
 
-   result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
+	result = XGetWindowProperty(server.dsp, win, at, 0, 0x7fffffff, False, type, &type_ret, &format_ret, &nitems_ret, &bafter_ret, &prop_value);
 
-   /* Send back resultcount */
-   if (num_results) *num_results = nitems_ret;
+	// Send back resultcount
+	if (num_results) *num_results = (int)nitems_ret;
 
-   if (result == Success && prop_value) return prop_value;
-   else return 0;
+	if (result == Success && prop_value) return prop_value;
+	else return 0;
 }
 
 
-Pixmap get_root_pixmap ()
+void get_root_pixmap()
 {
-   // conky capture correctement le fond d'écran en xlib !!
-   Pixmap root_pixmap;
-   unsigned long *res;
-
-   res = server_get_property (server.root_win, server.atom._XROOTPMAP_ID, XA_PIXMAP, 0);
-   if (res) {
-      root_pixmap = *((Drawable*) res);
-      XFree(res);
-      return root_pixmap;
-   }
-   else {
-      printf("get_root_pixmap incorrect\n");
-      // try _XSETROOT_ID
-   }
-         
-   return 0;
+	Pixmap ret = None;
+
+	unsigned long *res;
+	int  c = 2;
+
+	do {
+		res = server_get_property (server.root_win, server.atom._XROOTPMAP_ID, XA_PIXMAP, 0);
+		if (res) {
+			ret = *((Pixmap*)res);
+			XFree(res);
+			break;
+		}
+	} while (--c > 0);
+	server.root_pmap = ret;
+
+	if (server.root_pmap == None)
+		fprintf(stderr, "tint2 : pixmap background detection failed\n");
+	else {
+		XGCValues  gcv;
+		gcv.ts_x_origin = 0;
+		gcv.ts_y_origin = 0;
+		gcv.fill_style = FillTiled;
+		uint mask = GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle | GCTile;
+
+		gcv.tile = server.root_pmap;
+		XChangeGC(server.dsp, server.gc, mask, &gcv);
+	}
 }
 
 
-
-
-Pixmap server_create_pixmap (int width, int height)
+int compareMonitorPos(const void *monitor1, const void *monitor2)
 {
-   return XCreatePixmap (server.dsp, server.root_win, width, height, server.depth);
+	Monitor *m1 = (Monitor*)monitor1;
+	Monitor *m2 = (Monitor*)monitor2;
+
+	if (m1->x < m2->x) {
+		return -1;
+	}
+	else if (m1->x > m2->x) {
+		return 1;
+	}
+	else if (m1->y < m2->y) {
+		return -1;
+	}
+	else if (m1->y > m2->y) {
+		return 1;
+	}
+	else {
+		return 0;
+	}
 }
 
 
-void server_refresh_root_pixmap ()
+int compareMonitorIncluded(const void *monitor1, const void *monitor2)
 {
-   if (!server.root_pmap) {
-      Pixmap wall = get_root_pixmap();
-
-      server.root_pmap = server_create_pixmap (panel.area.width, panel.area.height);
+	Monitor *m1 = (Monitor*)monitor1;
+	Monitor *m2 = (Monitor*)monitor2;
+
+	if (m1->x >= m2->x && m1->y >= m2->y && (m1->x+m1->width) <= (m2->x+m2->width) && (m1->y+m1->height) <= (m2->y+m2->height)) {
+		// m1 included inside m2
+		return 1;
+	}
+	else {
+		return -1;
+	}
+}
 
-      XCopyArea (server.dsp, wall, server.root_pmap, server.gc, server.posx, server.posy, panel.area.width, panel.area.height, 0, 0);
-   
-      panel.area.redraw = 1;
-   }
-   
-   if (server.pmap) XFreePixmap (server.dsp, server.pmap);
-   server.pmap = server_create_pixmap (panel.area.width, panel.area.height);
 
-   XCopyArea (server.dsp, server.root_pmap, server.pmap, server.gc, 0, 0, panel.area.width, panel.area.height, 0, 0);
+void get_monitors()
+{
+	int i, j, nbmonitor;
+	if (XineramaIsActive(server.dsp)) {
+		XineramaScreenInfo *info = XineramaQueryScreens(server.dsp, &nbmonitor);
+		XRRScreenResources *res = XRRGetScreenResourcesCurrent(server.dsp, server.root_win);
+
+		if (res && res->ncrtc >= nbmonitor) {
+			// use xrandr to identify monitors (does not work with proprietery nvidia drivers)
+			printf("xRandr: Found crtc's: %d\n", res->ncrtc );
+			server.monitor = malloc(res->ncrtc * sizeof(Monitor));
+			for (i=0; i<res->ncrtc; ++i) {
+				XRRCrtcInfo* crtc_info = XRRGetCrtcInfo(server.dsp, res, res->crtcs[i]);
+				server.monitor[i].x = crtc_info->x;
+				server.monitor[i].y = crtc_info->y;
+				server.monitor[i].width = crtc_info->width;
+				server.monitor[i].height = crtc_info->height;
+				server.monitor[i].names = malloc((crtc_info->noutput+1) * sizeof(char*));
+				for (j=0; j<crtc_info->noutput; ++j) {
+					XRROutputInfo* output_info = XRRGetOutputInfo(server.dsp, res, crtc_info->outputs[j]);
+					printf("xRandr: Linking output %s with crtc %d\n", output_info->name, i);
+					server.monitor[i].names[j] = g_strdup(output_info->name);
+					XRRFreeOutputInfo(output_info);
+				}
+				server.monitor[i].names[j] = 0;
+				XRRFreeCrtcInfo(crtc_info);
+			}
+			nbmonitor = res->ncrtc;
+		}
+		else if (info && nbmonitor > 0) {
+			server.monitor = malloc(nbmonitor * sizeof(Monitor));
+			for (i=0 ; i < nbmonitor ; i++) {
+				server.monitor[i].x = info[i].x_org;
+				server.monitor[i].y = info[i].y_org;
+				server.monitor[i].width = info[i].width;
+				server.monitor[i].height = info[i].height;
+				server.monitor[i].names = 0;
+			}
+		}
+
+		// ordered monitor
+		qsort(server.monitor, nbmonitor, sizeof(Monitor), compareMonitorIncluded);
+
+		// remove monitor included into another one
+		i = 0;
+		while (i < nbmonitor) {
+			for (j=0; j < i ; j++) {
+				if (compareMonitorIncluded(&server.monitor[i], &server.monitor[j]) > 0) {
+					goto next;
+				}
+			}
+			i++;
+		}
+next:
+		for (j=i; j<server.nb_monitor; ++j)
+			if (server.monitor[j].names)
+				g_strfreev(server.monitor[j].names);
+		server.nb_monitor = i;
+		server.monitor = realloc(server.monitor, server.nb_monitor * sizeof(Monitor));
+		qsort(server.monitor, server.nb_monitor, sizeof(Monitor), compareMonitorPos);
+
+		if (res)
+			XRRFreeScreenResources(res);
+		XFree(info);
+	}
+
+	if (!server.nb_monitor) {
+		server.nb_monitor = 1;
+		server.monitor = malloc(sizeof(Monitor));
+		server.monitor[0].x = server.monitor[0].y = 0;
+		server.monitor[0].width = DisplayWidth (server.dsp, server.screen);
+		server.monitor[0].height = DisplayHeight (server.dsp, server.screen);
+		server.monitor[0].names = 0;
+	}
 }
 
 
-void get_monitors()
+void get_desktops()
 {
-   if (server.monitor) free(server.monitor);
-   server.nb_monitor = 0;
-   server.monitor = 0;
-   
-   if (XineramaIsActive(server.dsp)) {
-      XineramaScreenInfo *info = XineramaQueryScreens(server.dsp, &server.nb_monitor);
-
-      if (info) {
-         int i;
-         
-         server.monitor = calloc(server.nb_monitor, sizeof(Monitor));
-         for (i = 0; i < server.nb_monitor; i++) {
-            server.monitor[i].x = info[i].x_org;
-            server.monitor[i].y = info[i].y_org;
-            server.monitor[i].width = info[i].width;
-            server.monitor[i].height = info[i].height;
-         }  
-         XFree(info);
-      }
-   }
-
-   if (!server.nb_monitor) {
-      server.nb_monitor = 1;
-      server.monitor = calloc(server.nb_monitor, sizeof(Monitor));
-      server.monitor[0].x = server.monitor[0].y = 0;
-      server.monitor[0].width = DisplayWidth (server.dsp, server.screen);
-      server.monitor[0].height = DisplayHeight (server.dsp, server.screen);
-   }
+	int i;
+
+	// detect number of desktops
+	// wait 15s to leave some time for window manager startup
+	for (i=0 ; i < 15 ; i++) {
+		server.nb_desktop = server_get_number_of_desktop ();
+		if (server.nb_desktop > 0) break;
+		sleep(1);
+	}
+	if (server.nb_desktop == 0) {
+		server.nb_desktop = 1;
+		fprintf(stderr, "warning : WM doesn't respect NETWM specs. tint2 default to 1 desktop.\n");
+	}
 }
 
 
+void server_init_visual()
+{
+	// inspired by freedesktops fdclock ;)
+	XVisualInfo *xvi;
+	XVisualInfo templ = { .screen=server.screen, .depth=32, .class=TrueColor };
+	int nvi;
+	xvi = XGetVisualInfo(server.dsp, VisualScreenMask|VisualDepthMask|VisualClassMask, &templ, &nvi);
+
+	Visual *visual = 0;
+	if (xvi) {
+		int i;
+		XRenderPictFormat *format;
+		for (i = 0; i < nvi; i++) {
+			format = XRenderFindVisualFormat(server.dsp, xvi[i].visual);
+			if (format->type == PictTypeDirect && format->direct.alphaMask) {
+				visual = xvi[i].visual;
+				break;
+			}
+		}
+	}
+	XFree (xvi);
+
+	// check composite manager
+	server.composite_manager = XGetSelectionOwner(server.dsp, server.atom._NET_WM_CM_S0);
+	if (server.colormap)
+		XFreeColormap(server.dsp, server.colormap);
+	if (server.colormap32)
+		XFreeColormap(server.dsp, server.colormap32);
+
+	if (visual) {
+		server.visual32 = visual;
+		server.colormap32 = XCreateColormap(server.dsp, server.root_win, visual, AllocNone);
+	}
+
+	if (visual && server.composite_manager != None && snapshot_path == 0) {
+		XSetWindowAttributes attrs;
+		attrs.event_mask = StructureNotifyMask;
+		XChangeWindowAttributes (server.dsp, server.composite_manager, CWEventMask, &attrs);
+
+		server.real_transparency = 1;
+		server.depth = 32;
+		printf("real transparency on... depth: %d\n", server.depth);
+		server.colormap = XCreateColormap(server.dsp, server.root_win, visual, AllocNone);
+		server.visual = visual;
+	}
+	else {
+		// no composite manager or snapshot mode => fake transparency
+		server.real_transparency = 0;
+		server.depth = DefaultDepth(server.dsp, server.screen);
+		printf("real transparency off.... depth: %d\n", server.depth);
+		server.colormap = DefaultColormap(server.dsp, server.screen);
+		server.visual = DefaultVisual(server.dsp, server.screen);
+	}
+}