Imported new eiconman

eiconman/Utils.cpp

@@ -0,0 +1,175 @@
+/*
+ * $Id$
+ *
+ * Eiconman, desktop and icon manager
+ * Part of Equinox Desktop Environment (EDE).
+ * Copyright (c) 2000-2007 EDE Authors.
+ *
+ * This program is licensed under terms of the 
+ * GNU General Public License version 2 or newer.
+ * See COPYING for details.
+ */
+
+#include "Utils.h"
+#include <X11/Xproto.h> // CARD32
+#include <fltk/x11.h>
+#include <edelib/Debug.h>
+
+Atom NET_WORKAREA = 0;
+Atom NET_WM_WINDOW_TYPE = 0;
+Atom NET_WM_WINDOW_TYPE_DESKTOP = 0;
+Atom NET_NUMBER_OF_DESKTOPS = 0;
+Atom NET_CURRENT_DESKTOP = 0;
+Atom NET_DESKTOP_NAMES = 0;
+
+bool net_get_workarea(int& x, int& y, int& w, int &h) {
+	Atom real;
+
+	if(!NET_WORKAREA)
+		NET_WORKAREA= XInternAtom(fltk::xdisplay, "_NET_WORKAREA", 1);
+
+	int format;
+	unsigned long n, extra;
+	unsigned char* prop;
+	x = y = w = h = 0;
+
+	int status = XGetWindowProperty(fltk::xdisplay, RootWindow(fltk::xdisplay, fltk::xscreen), 
+			NET_WORKAREA, 0L, 0x7fffffff, False, XA_CARDINAL, &real, &format, &n, &extra, (unsigned char**)&prop);
+
+	if(status != Success)
+		return false;
+
+	CARD32* val = (CARD32*)prop;
+	if(val) {
+		x = val[0];
+		y = val[1];
+		w = val[2];
+		h = val[3];
+
+		XFree((char*)val);
+		return true;
+	}
+
+	return false;
+}
+
+void net_make_me_desktop(fltk::Window* w) {
+	if(!NET_WM_WINDOW_TYPE)
+		NET_WM_WINDOW_TYPE = XInternAtom(fltk::xdisplay, "_NET_WM_WINDOW_TYPE", False);
+
+	if(!NET_WM_WINDOW_TYPE_DESKTOP)
+		NET_WM_WINDOW_TYPE_DESKTOP= XInternAtom(fltk::xdisplay, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
+
+	/*
+	 * xid() will return zero if window is not shown;
+	 * make sure it is shown
+	 */
+	EASSERT(fltk::xid(w));
+
+	/*
+	 * Reminder for me (others possible):
+	 * note '&NET_WM_WINDOW_TYPE_DESKTOP' conversion, since gcc will not report warning/error 
+	 * if placed 'NET_WM_WINDOW_TYPE_DESKTOP' only.
+	 *
+	 * I lost two hours messing with this ! (gdb is unusefull in X world)
+	 */
+	XChangeProperty(fltk::xdisplay, fltk::xid(w), NET_WM_WINDOW_TYPE, XA_ATOM, 32, PropModeReplace, 
+			(unsigned char*)&NET_WM_WINDOW_TYPE_DESKTOP, sizeof(Atom));
+}
+
+int net_get_workspace_count(void) {
+	if(!NET_NUMBER_OF_DESKTOPS)
+		NET_NUMBER_OF_DESKTOPS = XInternAtom(fltk::xdisplay, "_NET_NUMBER_OF_DESKTOPS", False);
+
+	Atom real;
+	int format;
+	unsigned long n, extra;
+	unsigned char* prop;
+
+	int status = XGetWindowProperty(fltk::xdisplay, RootWindow(fltk::xdisplay, fltk::xscreen), 
+			NET_NUMBER_OF_DESKTOPS, 0L, 0x7fffffff, False, XA_CARDINAL, &real, &format, &n, &extra, 
+			(unsigned char**)&prop);
+
+	if(status != Success && !prop)
+		return -1;
+
+	int ns = int(*(long*)prop);
+	XFree(prop);
+	return ns;
+}
+
+// desktops are starting from 0
+int net_get_current_desktop(void) {
+	if(!NET_CURRENT_DESKTOP)
+		NET_CURRENT_DESKTOP = XInternAtom(fltk::xdisplay, "_NET_CURRENT_DESKTOP", False);
+	Atom real;
+	int format;
+	unsigned long n, extra;
+	unsigned char* prop;
+
+	int status = XGetWindowProperty(fltk::xdisplay, RootWindow(fltk::xdisplay, fltk::xscreen), 
+			NET_CURRENT_DESKTOP, 0L, 0x7fffffff, False, XA_CARDINAL, &real, &format, &n, &extra, (unsigned char**)&prop);
+
+	if(status != Success && !prop)
+		return -1;
+
+	int ns = int(*(long*)prop);
+	XFree(prop);
+	return ns;
+}
+
+// call on this XFreeStringList(names)
+int net_get_workspace_names(char**& names) {
+	if(!NET_DESKTOP_NAMES)
+		NET_DESKTOP_NAMES = XInternAtom(fltk::xdisplay, "_NET_DESKTOP_NAMES", False);
+
+	// FIXME: add _NET_SUPPORTING_WM_CHECK and _NET_SUPPORTED ???
+	XTextProperty wnames;
+	XGetTextProperty(fltk::xdisplay, RootWindow(fltk::xdisplay, fltk::xscreen), &wnames, NET_DESKTOP_NAMES);
+
+	// if wm does not understainds _NET_DESKTOP_NAMES this is not set
+	if(!wnames.nitems || !wnames.value)
+		return 0;
+
+	int nsz;
+
+	if(!XTextPropertyToStringList(&wnames, &names, &nsz)) {
+		XFree(wnames.value);
+		return 0;
+	}
+
+	//XFreeStringList(names);
+	XFree(wnames.value);
+	return nsz;
+}
+
+#if 0
+int net_get_workspace_names(char** names) {
+	Atom nd = XInternAtom(fltk::xdisplay, "_NET_DESKTOP_NAMES", False);
+	Atom utf8_str = XInternAtom(fltk::xdisplay, "UTF8_STRING", False);
+	Atom real;
+	int format;
+	unsigned long n, extra;
+	unsigned char* prop;
+
+	int status = XGetWindowProperty(fltk::xdisplay, RootWindow(fltk::xdisplay, fltk::xscreen), 
+			nd, 0L, 0x7fffffff, False, utf8_str, &real, &format, &n, &extra, (unsigned char**)&prop);
+
+	if(status != Success && !prop)
+		return 0;
+
+	int alloc = 0;
+	if(real == utf8_str && format == 8) {
+		const char* p = (const char*)prop;
+		for(int i = 0, s = 0; i < n && alloc < MAX_DESKTOPS; i++, alloc++) {
+			if(p[i] == '\0') {
+				EDEBUG("%c ", p[i]);
+				names[alloc] = strndup((p + s), i - s + 1);
+				s = i + 1;
+			}
+		}
+	}
+
+	return alloc;
+}
+#endif