@@ -230,6 +230,7 @@ 
 	battery->area.parent = p;
 	battery->area.panel = p;
 	battery->area._draw_foreground = draw_battery;
+	battery->area.size_mode = SIZE_BY_CONTENT;
 	battery->area._resize = resize_battery;
 	battery->area.resize = 1;
 	battery->area.redraw = 1;

@@ -149,6 +149,7 @@ 
 	clock->area.parent = p;
 	clock->area.panel = p;
 	clock->area._draw_foreground = draw_clock;
+	clock->area.size_mode = SIZE_BY_CONTENT;
 	clock->area._resize = resize_clock;
 	clock->area.resize = 1;
 	clock->area.redraw = 1;

@@ -56,6 +56,7 @@ 
 	launcher->area.parent = p;
 	launcher->area.panel = p;
 	launcher->area._draw_foreground = draw_launcher;
+	launcher->area.size_mode = SIZE_BY_CONTENT;
 	launcher->area._resize = resize_launcher;
 	launcher->area.resize = 1;
 	launcher->area.redraw = 1;

@@ -163,6 +163,7 @@ p->area.parent = p;
 		p->area.panel = p;
 		p->area.on_screen = 1;
 		p->area.resize = 1;
+		p->area.size_mode = SIZE_BY_CONTENT;
 		p->area._resize = resize_panel;
 		p->g_taskbar.area.parent = p;
 		p->g_taskbar.area.panel = p;

@@ -61,6 +61,7 @@ render_background = 0;
 	systray.alpha = 100;
 	systray.sort = 3;
 	systray.area._draw_foreground = draw_systray;
+	systray.area.size_mode = SIZE_BY_CONTENT;
 	systray.area._resize = resize_systray;
 }
 

@@ -221,7 +221,7 @@ }
 	}
 
 	data = server_get_property (tsk->win, server.atom._NET_WM_ICON, XA_CARDINAL, &i);
-	if (data) {
+	if (data && i) {
 		// get ARGB icon
 		int w, h;
 		long *tmp_data;

@@ -75,6 +75,7 @@ if (panel->g_task.area.bg == 0)
 			panel->g_task.area.bg = &g_array_index(backgrounds, Background, 0);
 
 		// taskbar
+		panel->g_taskbar.area.size_mode = SIZE_BY_LAYOUT;
 		panel->g_taskbar.area._resize = resize_taskbar;
 		panel->g_taskbar.area.redraw = 1;
 		panel->g_taskbar.area.on_screen = 1;
@@ -88,6 +89,7 @@ panel->g_taskbar.area.width = panel->area.width - (2 * panel->g_taskbar.area.posx);
 		}
 
 		// task
+		panel->g_task.area.size_mode = SIZE_BY_LAYOUT;
 		panel->g_task.area._draw_foreground = draw_task;
 		panel->g_task.area.redraw = 1;
 		panel->g_task.area.on_screen = 1;

@@ -33,15 +33,12 @@ 
 
 /*
 // TODO : layering & drawing loop
-1) browse tree and calculate 'size' for SIZE_BY_CONTENT
-	- SIZE_BY_CONTENT loop calculate child first
-	- if 'size' changed then 'resize = 1' on the parent (tester resize aprés la boucle)
-	- size == width on horizontal panel and == height on vertical panel
-2) browse tree and calculate 'size' for SIZE_BY_LAYOUT
-	- SIZE_BY_LAYOUT loop calculate parent first
+1) browse tree and resize SIZE_BY_CONTENT node
+	- children node are resized before its parent
+	- if 'size' changed then 'resize = 1' on the parent
+2) browse tree and resize SIZE_BY_LAYOUT node
+	- parent node is resized before its children
 	- if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
-	- calculate width = size - somme(child_with_of_SIZE_BY_CONTENT) modulo(number of child_SIZE_BY_LAYOUT)
-	- calculate modulo = 
 3) calculate posx of all objects
 4) redraw needed objects
 */
@@ -52,6 +49,7 @@ // don't draw and resize hide objects
 	if (!a->on_screen) return;
 
 	size(a);
+	//size_by_content(a);
 
 	// don't draw transparent objects (without foreground and without background)
 	if (a->redraw) {
@@ -95,6 +93,44 @@ a->_resize(a);
 	}
 }
 
+// browse tree and resize SIZE_BY_CONTENT node
+void size_by_content (Area *a)
+{
+	// children node are resized before its parent
+	GSList *l;
+	for (l = a->list; l ; l = l->next)
+		size_by_content(l->data);
+	
+	// calculate current area's size
+	if (a->resize && a->size_mode == SIZE_BY_CONTENT) {
+		a->resize = 0;
+
+		// if 'size' changed then 'resize = 1' on the parent
+		a->_resize(a);
+		((Area*)a->parent)->resize = 1;
+	}
+}
+
+
+// browse tree and resize SIZE_BY_LAYOUT node
+void size_by_layout (Area *a)
+{
+	// parent node is resized before its children
+
+	// calculate current area's size
+	if (a->resize && a->size_mode == SIZE_BY_LAYOUT) {
+		a->resize = 0;
+
+		// if 'size' changed then 'resize = 1' on the parent
+		//if (a->_resize(a)) 
+			//a->parent->resize = 1;
+	}
+
+	GSList *l;
+	for (l = a->list; l ; l = l->next)
+		size_by_layout(l->data);	
+}
+
 
 void set_redraw (Area *a)
 {
@@ -148,9 +184,9 @@ // draw border inside (x, y, width, height)
 		draw_rect(c, a->bg->border.width/2.0, a->bg->border.width/2.0, a->width - a->bg->border.width, a->height - a->bg->border.width, a->bg->border.rounded);
 		/*
 		// convert : radian = degre * M_PI/180
-		// définir le dégradé dans un carré de (0,0) (100,100)
-		// ensuite ce dégradé est extrapolé selon le ratio width/height
-		// dans repère (0, 0) (100, 100)
+		// definir le degrade dans un carre de (0,0) (100,100)
+		// ensuite ce degrade est extrapoler selon le ratio width/height
+		// dans repere (0, 0) (100, 100)
 		double X0, Y0, X1, Y1, degre;
 		// x = X * (a->width / 100), y = Y * (a->height / 100)
 		double x0, y0, x1, y1;
@@ -159,13 +195,13 @@ Y0 = 100;
 		X1 = 100;
 		Y1 = 0;
 		degre = 45;
-		// et ensuite faire la changement d'unité du repère
-		// car ce qui doit resté inchangée est les traits et pas la direction
+		// et ensuite faire la changement d'unite du repere
+		// car ce qui doit reste inchangee est les traits et pas la direction
 
-		// il faut d'abord appliquer une rotation de 90° (et -180° si l'angle est supérieur à 180°)
-		// ceci peut être appliqué une fois pour toute au départ
-		// ensuite calculer l'angle dans le nouveau repère
-		// puis faire une rotation de 90°
+		// il faut d'abord appliquer une rotation de 90 (et -180 si l'angle est superieur a  180)
+		// ceci peut etre applique une fois pour toute au depart
+		// ensuite calculer l'angle dans le nouveau repare
+		// puis faire une rotation de 90
 		x0 = X0 * ((double)a->width / 100);
 		x1 = X1 * ((double)a->width / 100);
 		y0 = Y0 * ((double)a->height / 100);