GTK Tooltips on main buttons

sflphone-gtk/src/calltree.c

@@ -284,12 +284,14 @@ create_toolbar (){
 
 	image = gtk_image_new_from_file( ICONS_DIR "/call.svg");
 	callButton = gtk_tool_button_new (image, "Place a Call");
+	gtk_widget_set_tooltip_text(GTK_WIDGET(callButton), "Place a call");
 	g_signal_connect (G_OBJECT (callButton), "clicked",
 			G_CALLBACK (call_button), NULL);
-	gtk_toolbar_insert(GTK_TOOLBAR(ret), GTK_TOOL_ITEM(callButton), -1);  
+	gtk_toolbar_insert(GTK_TOOLBAR(ret), GTK_TOOL_ITEM(callButton), -1);
 
 	image = gtk_image_new_from_file( ICONS_DIR "/accept.svg");
 	pickupButton = gtk_tool_button_new(image, "Pick up");
+	gtk_widget_set_tooltip_text(GTK_WIDGET(pickupButton), "Pick up");
 	gtk_widget_set_state( GTK_WIDGET(pickupButton), GTK_STATE_INSENSITIVE);
 	g_signal_connect(G_OBJECT (pickupButton), "clicked", 
 			G_CALLBACK (call_button), NULL);
@@ -297,6 +299,7 @@ create_toolbar (){
 
 	image = gtk_image_new_from_file( ICONS_DIR "/hang_up.svg");
 	hangupButton = gtk_tool_button_new (image, "Hang up");
+	gtk_widget_set_tooltip_text(GTK_WIDGET(hangupButton), "Hang up");
 	gtk_widget_set_state( GTK_WIDGET(hangupButton), GTK_STATE_INSENSITIVE);
 	g_signal_connect (G_OBJECT (hangupButton), "clicked",
 			G_CALLBACK (hang_up), NULL);
@@ -304,6 +307,7 @@ create_toolbar (){
 
 	image = gtk_image_new_from_file( ICONS_DIR "/unhold.svg");
 	unholdButton = gtk_tool_button_new (image, "Off Hold");
+	gtk_widget_set_tooltip_text(GTK_WIDGET(unholdButton), "Off Hold");
 	gtk_widget_set_state( GTK_WIDGET(unholdButton), GTK_STATE_INSENSITIVE);
 	g_signal_connect (G_OBJECT (unholdButton), "clicked",
 			G_CALLBACK (unhold), NULL);
@@ -311,14 +315,16 @@ create_toolbar (){
 
 	image = gtk_image_new_from_file( ICONS_DIR "/hold.svg");
 	holdButton =  gtk_tool_button_new (image, "On Hold");
+	gtk_widget_set_tooltip_text(GTK_WIDGET(holdButton), "On Hold");
 	gtk_widget_set_state( GTK_WIDGET(holdButton), GTK_STATE_INSENSITIVE);
 	g_signal_connect (G_OBJECT (holdButton), "clicked",
 			G_CALLBACK (hold), NULL);
-	gtk_toolbar_insert(GTK_TOOLBAR(ret), GTK_TOOL_ITEM(holdButton), -1);  
+	gtk_toolbar_insert(GTK_TOOLBAR(ret), GTK_TOOL_ITEM(holdButton), -1);
 
 	image = gtk_image_new_from_file( ICONS_DIR "/transfert.svg");
 	transfertButton = gtk_toggle_tool_button_new ();
 	gtk_tool_button_set_icon_widget(GTK_TOOL_BUTTON(transfertButton), image);
+	gtk_widget_set_tooltip_text(GTK_WIDGET(transfertButton), "Transfer");
 	gtk_tool_button_set_label(GTK_TOOL_BUTTON(transfertButton), "Transfer");
 	gtk_widget_set_state( GTK_WIDGET(transfertButton), GTK_STATE_INSENSITIVE);
 	transfertButtonConnId = g_signal_connect (G_OBJECT (transfertButton), "toggled",