* Upstream Merge

  * Handle label updating and use the guide to guess the size.

2 files changed, 124 insertions, 6 deletions

diff --git a/debian/changelog b/debian/changelog
index 61bbf74..72e09bf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+indicator-application (0.2.3-0ubuntu2~ppa1~label5) UNRELEASED; urgency=low
+
+  * Upstream Merge
+    * Handle label updating and use the guide to guess the size.
+
+ -- Ted Gould <ted@ubuntu.com>  Thu, 05 Aug 2010 14:48:04 -0500
+
 indicator-application (0.2.3-0ubuntu2~ppa1~label4) lucid; urgency=low
 
   * Upstream Merge
diff --git a/src/indicator-application.c b/src/indicator-application.c
index 5a6bfaf..31c3aa9 100644
--- a/src/indicator-application.c
+++ b/src/indicator-application.c
@@ -88,6 +88,7 @@ struct _ApplicationEntry {
 	gboolean old_service;
 	gchar * dbusobject;
 	gchar * dbusaddress;
+	gchar * guide;
 };
 
 #define INDICATOR_APPLICATION_GET_PRIVATE(o) \
@@ -431,6 +432,46 @@ application_added_search (gconstpointer a, gconstpointer b)
 	return -1;
 }
 
+/* Does a quick meausre of how big the string is in
+   pixels with a Pango layout */
+static gint
+measure_string (GtkStyle * style, PangoContext * context, const gchar * string)
+{
+	PangoLayout * layout = pango_layout_new(context);
+	pango_layout_set_text(layout, string, -1);
+	pango_layout_set_font_description(layout, style->font_desc);
+
+	gint width;
+	pango_layout_get_pixel_size(layout, &width, NULL);
+	g_object_unref(layout);
+	return width;
+}
+
+/* Try to get a good guess at what a maximum width of the entire
+   string would be. */
+static void
+guess_label_size (ApplicationEntry * app)
+{
+	/* This is during startup. */
+	if (app->entry.label == NULL) return;
+
+	GtkStyle * style = gtk_widget_get_style(GTK_WIDGET(app->entry.label));
+	PangoContext * context = gtk_widget_get_pango_context(GTK_WIDGET(app->entry.label));
+
+	gint length = measure_string(style, context, gtk_label_get_text(app->entry.label));
+
+	if (app->guide != NULL) {
+		gint guidelen = measure_string(style, context, app->guide);
+		if (guidelen > length) {
+			length = guidelen;
+		}
+	}
+
+	gtk_widget_set_size_request(GTK_WIDGET(app->entry.label), length, -1);
+
+	return;
+}
+
 /* Here we respond to new applications by building up the
    ApplicationEntry and signaling the indicator host that
    we've got a new indicator. */
@@ -465,6 +506,7 @@ application_added (DBusGProxy * proxy, const gchar * iconname, gint position, co
 
 	app->dbusaddress = g_strdup(dbusaddress);
 	app->dbusobject = g_strdup(dbusobject);
+	app->guide = NULL;
 
 	/* We make a long name using the suffix, and if that
 	   icon is available we want to use it.  Otherwise we'll
@@ -482,9 +524,19 @@ application_added (DBusGProxy * proxy, const gchar * iconname, gint position, co
 		app->entry.label = NULL;
 	} else {
 		app->entry.label = GTK_LABEL(gtk_label_new(label));
+		g_object_ref(G_OBJECT(app->entry.label));
 		gtk_widget_show(GTK_WIDGET(app->entry.label));
 
-		/* TODO: Use guide to size the label better */
+		if (app->guide != NULL) {
+			g_free(app->guide);
+			app->guide = NULL;
+		}
+
+		if (guide != NULL) {
+			app->guide = g_strdup(guide);
+		}
+
+		guess_label_size(app);
 	}
 
 	app->entry.menu = GTK_MENU(dbusmenu_gtkmenu_new((gchar *)dbusaddress, (gchar *)dbusobject));
@@ -497,7 +549,6 @@ application_added (DBusGProxy * proxy, const gchar * iconname, gint position, co
 
 	priv->applications = g_list_insert(priv->applications, app, position);
 
-	/* TODO: Need to deal with position here somehow */
 	g_signal_emit(G_OBJECT(application), INDICATOR_OBJECT_SIGNAL_ENTRY_ADDED_ID, 0, &(app->entry), TRUE);
 	return;
 }
@@ -529,11 +580,13 @@ application_removed (DBusGProxy * proxy, gint position, IndicatorApplication * a
 	if (app->dbusobject != NULL) {
 		g_free(app->dbusobject);
 	}
+	if (app->guide != NULL) {
+		g_free(app->guide);
+	}
 	if (app->entry.image != NULL) {
 		g_object_unref(G_OBJECT(app->entry.image));
 	}
 	if (app->entry.label != NULL) {
-		g_warning("Odd, an application indicator with a label?");
 		g_object_unref(G_OBJECT(app->entry.label));
 	}
 	if (app->entry.menu != NULL) {
@@ -551,16 +604,74 @@ application_label_changed (DBusGProxy * proxy, gint position, const gchar * labe
 {
 	IndicatorApplicationPrivate * priv = INDICATOR_APPLICATION_GET_PRIVATE(application);
 	ApplicationEntry * app = (ApplicationEntry *)g_list_nth_data(priv->applications, position);
+	gboolean signal_reload = FALSE;
 
 	if (app == NULL) {
 		g_warning("Unable to find application at position: %d", position);
 		return;
 	}
+	
+	if (label == NULL || label[0] == '\0') {
+		/* No label, let's see if we need to delete the old one */
+		if (app->entry.label != NULL) {
+			g_object_unref(G_OBJECT(app->entry.label));
+			app->entry.label = NULL;
 
-	if (app->entry.label != NULL) {
-		gtk_label_set_text(app->entry.label, label);
+			signal_reload = TRUE;
+		}
 	} else {
-		/* TODO: Handle the case where we didn't have a label */
+		/* We've got a label, is this just an update or is
+		   it a new thing. */
+		if (app->entry.label != NULL) {
+			gtk_label_set_text(app->entry.label, label);
+		} else {
+			app->entry.label = GTK_LABEL(gtk_label_new(label));
+			g_object_ref(G_OBJECT(app->entry.label));
+			gtk_widget_show(GTK_WIDGET(app->entry.label));
+
+			signal_reload = TRUE;
+		}
+	}
+
+	/* Copy the guide if we have one */
+	if (app->guide != NULL) {
+		g_free(app->guide);
+		app->guide = NULL;
+	}
+
+	if (guide != NULL && guide[0] != '\0') {
+		app->guide = g_strdup(guide);
+	}
+
+	/* Protected against not having a label */
+	guess_label_size(app);
+
+	if (signal_reload) {
+		/* Telling the listener that this has been removed, and then
+		   readded to make it reparse the entry. */
+		if (app->entry.label != NULL) {
+			gtk_widget_hide(GTK_WIDGET(app->entry.label));
+		}
+
+		if (app->entry.image != NULL) {
+			gtk_widget_hide(GTK_WIDGET(app->entry.image));
+		}
+
+		if (app->entry.menu != NULL) {
+			gtk_menu_detach(app->entry.menu);
+		}
+
+		g_signal_emit(G_OBJECT(application), INDICATOR_OBJECT_SIGNAL_ENTRY_REMOVED_ID, 0, &(app->entry), TRUE);
+
+		if (app->entry.label != NULL) {
+			gtk_widget_show(GTK_WIDGET(app->entry.label));
+		}
+
+		if (app->entry.image != NULL) {
+			gtk_widget_show(GTK_WIDGET(app->entry.image));
+		}
+
+		g_signal_emit(G_OBJECT(application), INDICATOR_OBJECT_SIGNAL_ENTRY_ADDED_ID, 0, &(app->entry), TRUE);
 	}
 
 	return;