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authorFederico Mena Quintero <federico@novell.com>2010-03-25 03:23:10 +0800
committerFederico Mena Quintero <federico@novell.com>2010-03-26 05:47:48 +0800
commit31ece253129481e242440c799a674be12a6abb1b (patch)
treec98a0d7f714b6699576108b5e4c6020d985160f3
parent237a4ee2211db6cf811ee1e9bc274d96f19169d3 (diff)
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Start the mailer's folder sidebar with a reasonable width
We measure a sample string, and then clamp this to one fourth of the screen's width; we do some voodoo to guess the monitor we are in. Signed-off-by: Federico Mena Quintero <federico@novell.com>
-rw-r--r--modules/mail/e-mail-shell-sidebar.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/modules/mail/e-mail-shell-sidebar.c b/modules/mail/e-mail-shell-sidebar.c
index 70b59ad40a..42376ca52a 100644
--- a/modules/mail/e-mail-shell-sidebar.c
+++ b/modules/mail/e-mail-shell-sidebar.c
@@ -178,6 +178,86 @@ mail_shell_sidebar_constructed (GObject *object)
shell_sidebar);
}
+static int
+guess_screen_width (EMailShellSidebar *sidebar)
+{
+ GtkWidget *widget;
+ GdkScreen *screen;
+ int screen_width;
+
+ widget = GTK_WIDGET (sidebar);
+
+ screen_width = 0;
+
+ screen = gtk_widget_get_screen (widget);
+ if (screen) {
+ GtkWidget *toplevel;
+ int monitor;
+ GdkRectangle rect;
+
+ toplevel = gtk_widget_get_toplevel (widget);
+ if (toplevel && GTK_WIDGET_REALIZED (toplevel))
+ monitor = gdk_screen_get_monitor_at_window (screen, gtk_widget_get_window (toplevel));
+ else {
+ /* We don't know in which monitor the window manager
+ * will put us. So we will just use the geometry of the
+ * first monitor.
+ */
+ monitor = 0;
+ }
+
+ gdk_screen_get_monitor_geometry (screen, monitor, &rect);
+ screen_width = rect.width;
+ }
+
+ if (screen_width == 0)
+ screen_width = 1024;
+
+ return screen_width;
+}
+
+static void
+mail_shell_sidebar_size_request (GtkWidget *widget, GtkRequisition *requisition)
+{
+ /* We override the normal size-request handler so that we can
+ * spit out a treeview with a suitable width. We measure the length
+ * of a typical string and use that as the requisition's width.
+ *
+ * EMFolderTreeClass, our parent class, is based on GtkTreeView, which
+ * doesn't really have a good way of figuring out a minimum width for
+ * the tree. This is really GTK+'s fault at large, as it only has
+ * "minimum size / allocated size", instead of "minimum size / preferred
+ * size / allocated size". Hopefully the extended-layout branch of GTK+
+ * will get merged soon and then we can remove this crap.
+ */
+
+ EMailShellSidebar *sidebar;
+ PangoLayout *layout;
+ PangoRectangle ink_rect;
+ GtkStyle *style;
+ int border;
+ int sidebar_width;
+ int screen_width;
+
+ sidebar = E_MAIL_SHELL_SIDEBAR (widget);
+
+ GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
+
+ /* This string is a mockup only; it doesn't need to be translated */
+ layout = gtk_widget_create_pango_layout (widget, "typical.account@mailservice.com");
+ pango_layout_get_pixel_extents (layout, &ink_rect, NULL);
+ g_object_unref (layout);
+
+ style = gtk_widget_get_style (widget);
+
+ screen_width = guess_screen_width (sidebar);
+
+ border = 2 * style->xthickness + 4; /* Thickness of frame shadow plus some slack for padding */
+ sidebar_width = ink_rect.width + border;
+ sidebar_width = MIN (sidebar_width, screen_width / 4);
+ requisition->width = MAX (requisition->width, sidebar_width);
+}
+
static guint32
mail_shell_sidebar_check_state (EShellSidebar *shell_sidebar)
{
@@ -194,6 +274,7 @@ static void
mail_shell_sidebar_class_init (EMailShellSidebarClass *class)
{
GObjectClass *object_class;
+ GtkWidgetClass *widget_class;
EShellSidebarClass *shell_sidebar_class;
parent_class = g_type_class_peek_parent (class);
@@ -204,6 +285,9 @@ mail_shell_sidebar_class_init (EMailShellSidebarClass *class)
object_class->dispose = mail_shell_sidebar_dispose;
object_class->constructed = mail_shell_sidebar_constructed;
+ widget_class = GTK_WIDGET_CLASS (class);
+ widget_class->size_request = mail_shell_sidebar_size_request;
+
shell_sidebar_class = E_SHELL_SIDEBAR_CLASS (class);
shell_sidebar_class->check_state = mail_shell_sidebar_check_state;