Refactoring some icon handling. Dumping trash handling; this should be done by separate application

ede-desktop/MovableIcon.cpp

@@ -0,0 +1,75 @@
+/*
+ * $Id: DesktopIcon.cpp 3032 2011-08-03 12:20:37Z karijes $
+ *
+ * ede-desktop, desktop and icon manager
+ * Part of Equinox Desktop Environment (EDE).
+ * Copyright (c) 2006-2011 EDE Authors.
+ *
+ * This program is licensed under terms of the 
+ * GNU General Public License version 2 or newer.
+ * See COPYING for details.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define FL_LIBRARY 1
+#include <FL/Fl.H>
+#include <FL/x.H>
+#include <edelib/Debug.h>
+
+#ifdef HAVE_SHAPE
+# include <X11/extensions/shape.h>
+#endif
+
+#include "MovableIcon.h"
+#include "DesktopIcon.h"
+#include "Utils.h"
+
+MovableIcon::MovableIcon(DesktopIcon* ic) : Fl_Window(ic->x(), ic->y(), ic->w(), ic->h()), icon(ic), mask(0), opacity_atom(0) {
+	E_ASSERT(icon != NULL);
+
+	set_override();
+	color(ic->color());
+
+	begin();
+		/* force box be same width/height as icon so it can fit inside masked window */
+#ifdef HAVE_SHAPE 
+		Fl_Image* img = ic->icon_image();
+		if(img)
+			icon_box = new Fl_Box(0, 0, img->w(), img->h());
+		else
+			icon_box = new Fl_Box(0, 0, w(), h());
+#else
+		icon_box = new Fl_Box(0, 0, w(), h());
+#endif
+		icon_box->image(ic->icon_image());
+	end();
+
+	opacity_atom = XInternAtom(fl_display, "_NET_WM_WINDOW_OPACITY", False);
+}
+
+MovableIcon::~MovableIcon() {
+	if(mask)
+		XFreePixmap(fl_display, mask);
+}
+
+void MovableIcon::show(void) {
+	if(!shown())
+		Fl_X::make_xid(this);
+
+#ifdef HAVE_SHAPE
+	if(icon->icon_image()) {
+		mask = create_mask(icon->icon_image());
+		if(mask) {
+			XShapeCombineMask(fl_display, fl_xid(this), ShapeBounding, 0, 0, mask, ShapeSet);
+
+			/* now set transparency; composite manager should handle the rest (if running) */
+			unsigned int opacity = 0xc0000000;
+			XChangeProperty(fl_display, fl_xid(this), opacity_atom, XA_CARDINAL, 32, PropModeReplace,
+					(unsigned char*)&opacity, 1L);
+		}
+	}
+#endif
+}