Add new tree_view_foreach_visible() function.

Wed Nov  9 00:24:11 2005  Soeren Sandmann  <sandmann@redhat.com>

        * treeviewutils.[ch]: Add new tree_view_foreach_visible()
        function.

        * sysprof.c: Add update_screenshot_window() function.

ChangeLog

@@ -1,3 +1,10 @@
+Wed Nov  9 00:24:11 2005  Soeren Sandmann  <sandmann@redhat.com>
+
+	* treeviewutils.[ch]: Add new tree_view_foreach_visible()
+	function.
+
+	* sysprof.c: Add update_screenshot_window() function.
+
 Mon Nov  7 23:42:26 2005  Soeren Sandmann  <sandmann@redhat.com>
 
 	* sysprof.c: Add beginning of a screenshot

TODO

@@ -184,6 +184,12 @@ Before 1.2:
 	UI: "generate screenshot" menu item pops up a window with
 	a text area + a radio buttons "text/html". When you flick
 	them, the text area is automatically updated.
+	- beginning in CVS:
+		- why does the window not remember its position when
+		  you close it with the close button, but does remember
+		  it when you use the wm button or the menu item? It actually
+		  seems that it only forgets the position when you click the
+		  button with the mouse. But not if you use the keyboard ...
 
 - Find out how gdb does backtraces; they may have a better way. Also
   find out what dwarf2 is and how to use it. Look into libunwind.

sysprof.c

@@ -238,8 +238,8 @@ update_sensitivity (Application *app)
     else
 	gtk_widget_hide (app->screenshot_window);
     
-    gtk_check_menu_item_set_active (
-	GTK_CHECK_MENU_ITEM (app->screenshot_item), app->screenshot_window_visible);
+    gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (app->screenshot_item),
+				    app->screenshot_window_visible);
     
     queue_show_samples (app);
 }
@@ -781,7 +781,7 @@ on_save_as_clicked (gpointer widget,
     
     set_busy (app->main_window, FALSE);
     
- retry:
+retry:
     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
     {
 	GError *err = NULL;
@@ -875,7 +875,7 @@ on_open_clicked (gpointer widget,
     
     set_busy (app->main_window, FALSE);
     
- retry:
+retry:
     if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
     {
 	GError *err = NULL;
@@ -1007,6 +1007,14 @@ expand_descendants_tree (Application *app)
 	}
 	
 	all_paths = g_list_remove (all_paths, best_path);
+	
+	if (!all_paths && n_rows == 1)
+	{
+	    /* Always expand at least once */
+	    gtk_tree_view_expand_row (GTK_TREE_VIEW (app->descendants_view),
+				      best_path, FALSE);
+	}
+	
 	gtk_tree_path_free (best_path);
     }
     
@@ -1016,9 +1024,59 @@ expand_descendants_tree (Application *app)
     g_list_free (all_paths);
 }
 
+typedef struct
+{
+    int text_width;
+    int self_width;
+    int cumulative_width;
+} Widths;
+
+static void
+compute_widths (GtkTreeView  *view,
+		GtkTreePath  *path,
+		GtkTreeIter  *iter,
+		gpointer      data)
+{
+    GtkTreeModel *model = gtk_tree_view_get_model (view);
+}
+
+static void
+add_text (GtkTreeView *view,
+	  GtkTreePath *path,
+	  GtkTreeIter *iter,
+	  gpointer     data)
+{
+    Application *app = data;
+}
+
+static void
+update_screenshot_window (Application *app)
+{
+    typedef gboolean (* GtkTreeModelForeachFunc) (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data);
+
+    /* FIXME: clear the text buffer here */
+    
+    if (app->descendants)
+    {
+	Widths widths;
+
+	widths.text_width = 0;
+	widths.self_width = 0;
+	widths.cumulative_width = 0;
+	
+	tree_view_foreach_visible (app->descendants_view,
+				   compute_widths,
+				   &widths);
+
+	tree_view_foreach_visible (app->descendants_view,
+				   add_text,
+				   app);
+    }
+}
+
 static void
 on_object_selection_changed (GtkTreeSelection *selection,
-			     gpointer data)
+			     gpointer          data)
 {
     Application *app = data;
     
@@ -1032,6 +1090,8 @@ on_object_selection_changed (GtkTreeSelection *selection,
     if (get_current_object (app))
 	expand_descendants_tree (app);
     
+    update_screenshot_window (app);
+    
     set_busy (app->main_window, FALSE);
 }
 
@@ -1150,6 +1210,7 @@ on_screenshot_close_button_clicked (GtkWidget *widget,
 
 static void
 set_sizes (GtkWindow *window,
+	   GtkWindow *screenshot_window,
 	   GtkWidget *hpaned,
 	   GtkWidget *vpaned)
 {
@@ -1171,6 +1232,12 @@ set_sizes (GtkWindow *window,
     
     gtk_paned_set_position (GTK_PANED (vpaned), height / 2);
     gtk_paned_set_position (GTK_PANED (hpaned), width / 2);
+    
+    width = monitor.width * 5 / 8;
+    height = monitor.height * 5/ 8;
+    
+    gtk_window_resize (screenshot_window, width, height);
+    
 }
 
 static void
@@ -1225,9 +1292,6 @@ build_gui (Application *app)
 		      G_CALLBACK (on_delete), NULL);
     
     gtk_widget_realize (GTK_WIDGET (app->main_window));
-    set_sizes (GTK_WINDOW (app->main_window),
-	       glade_xml_get_widget (xml, "hpaned"),
-	       glade_xml_get_widget (xml, "vpaned"));
     
     /* Tool items */
     
@@ -1326,7 +1390,7 @@ build_gui (Application *app)
     
     gtk_widget_grab_focus (GTK_WIDGET (app->object_view));
     
-    /* Screenshot window */
+    /* screenshot window */
     app->screenshot_window = glade_xml_get_widget (xml, "screenshot_window");
     app->screenshot_textview = glade_xml_get_widget (xml, "screenshot_textview");
     app->screenshot_close_button = glade_xml_get_widget (xml, "screenshot_close_button");
@@ -1337,6 +1401,12 @@ build_gui (Application *app)
     g_signal_connect (app->screenshot_close_button, "clicked",
 		      G_CALLBACK (on_screenshot_close_button_clicked), app);
     
+    /* set sizes */
+    set_sizes (GTK_WINDOW (app->main_window),
+	       GTK_WINDOW (app->screenshot_window),
+	       glade_xml_get_widget (xml, "hpaned"),
+	       glade_xml_get_widget (xml, "vpaned"));
+    
     /* hide/show widgets */
     gtk_widget_show_all (app->main_window);
     gtk_widget_hide (app->dummy_button);

treeviewutils.c

@@ -230,3 +230,41 @@ restore_sort_state (GtkTreeView *view, gpointer st)
 	
 	gtk_tree_sortable_sort_column_changed (GTK_TREE_SORTABLE (model));
 }
+
+
+static void
+process_iter (GtkTreeView      *view,
+	      GtkTreeIter      *iter,
+	      VisibleCallback   callback,
+	      gpointer          data)
+{
+	GtkTreeModel *model = gtk_tree_view_get_model (view);
+	GtkTreePath *path;
+	GtkTreeIter child;
+	
+	path = gtk_tree_model_get_path (model, iter);
+	
+	callback (view, path, iter, data);
+	
+	if (gtk_tree_view_row_expanded (view, path)) {
+		if (gtk_tree_model_iter_children (model, &child, iter))	{
+			do {
+				process_iter (view, &child, callback, data);
+			} while (gtk_tree_model_iter_next (model, &child));
+		}
+	}
+	
+	gtk_tree_path_free (path);
+}
+
+void
+tree_view_foreach_visible (GtkTreeView *view,
+			   VisibleCallback callback,
+			   gpointer data)
+{
+	GtkTreeModel *model = gtk_tree_view_get_model (view);
+	GtkTreeIter iter;
+	
+	if (gtk_tree_model_get_iter_first (model, &iter))
+		process_iter (view, &iter, callback, data);
+}

treeviewutils.h

@@ -43,3 +43,11 @@ GtkTreeViewColumn *add_pointer_column       (GtkTreeView *view,
 gpointer           save_sort_state          (GtkTreeView *view);
 void               restore_sort_state       (GtkTreeView *view,
 					     gpointer     state);
+
+typedef void (* VisibleCallback) (GtkTreeView  *view,
+				  GtkTreePath  *path,
+				  GtkTreeIter  *iter,
+				  gpointer      data);
+void tree_view_foreach_visible (GtkTreeView *view,
+				VisibleCallback callback,
+				gpointer data);