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-rw-r--r--gtk/gtkmenubar.c310
1 files changed, 310 insertions, 0 deletions
diff --git a/gtk/gtkmenubar.c b/gtk/gtkmenubar.c
new file mode 100644
index 0000000000..19f0aa3e76
--- /dev/null
+++ b/gtk/gtkmenubar.c
@@ -0,0 +1,310 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "gtkmain.h"
+#include "gtkmenubar.h"
+#include "gtkmenuitem.h"
+
+
+#define BORDER_SPACING 2
+#define CHILD_SPACING 3
+
+
+static void gtk_menu_bar_class_init (GtkMenuBarClass *klass);
+static void gtk_menu_bar_init (GtkMenuBar *menu_bar);
+static void gtk_menu_bar_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_menu_bar_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_menu_bar_paint (GtkWidget *widget);
+static void gtk_menu_bar_draw (GtkWidget *widget,
+ GdkRectangle *area);
+static gint gtk_menu_bar_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+
+
+guint
+gtk_menu_bar_get_type ()
+{
+ static guint menu_bar_type = 0;
+
+ if (!menu_bar_type)
+ {
+ GtkTypeInfo menu_bar_info =
+ {
+ "GtkMenuBar",
+ sizeof (GtkMenuBar),
+ sizeof (GtkMenuBarClass),
+ (GtkClassInitFunc) gtk_menu_bar_class_init,
+ (GtkObjectInitFunc) gtk_menu_bar_init,
+ (GtkArgFunc) NULL,
+ };
+
+ menu_bar_type = gtk_type_unique (gtk_menu_shell_get_type (), &menu_bar_info);
+ }
+
+ return menu_bar_type;
+}
+
+static void
+gtk_menu_bar_class_init (GtkMenuBarClass *class)
+{
+ GtkWidgetClass *widget_class;
+ GtkMenuShellClass *menu_shell_class;
+
+ widget_class = (GtkWidgetClass*) class;
+ menu_shell_class = (GtkMenuShellClass*) class;
+
+ widget_class->draw = gtk_menu_bar_draw;
+ widget_class->size_request = gtk_menu_bar_size_request;
+ widget_class->size_allocate = gtk_menu_bar_size_allocate;
+ widget_class->expose_event = gtk_menu_bar_expose;
+
+ menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
+}
+
+static void
+gtk_menu_bar_init (GtkMenuBar *menu_bar)
+{
+}
+
+GtkWidget*
+gtk_menu_bar_new ()
+{
+ return GTK_WIDGET (gtk_type_new (gtk_menu_bar_get_type ()));
+}
+
+void
+gtk_menu_bar_append (GtkMenuBar *menu_bar,
+ GtkWidget *child)
+{
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), child);
+}
+
+void
+gtk_menu_bar_prepend (GtkMenuBar *menu_bar,
+ GtkWidget *child)
+{
+ gtk_menu_shell_prepend (GTK_MENU_SHELL (menu_bar), child);
+}
+
+void
+gtk_menu_bar_insert (GtkMenuBar *menu_bar,
+ GtkWidget *child,
+ gint position)
+{
+ gtk_menu_shell_insert (GTK_MENU_SHELL (menu_bar), child, position);
+}
+
+
+static void
+gtk_menu_bar_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ GtkMenuBar *menu_bar;
+ GtkMenuShell *menu_shell;
+ GtkWidget *child;
+ GList *children;
+ gint nchildren;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_MENU_BAR (widget));
+ g_return_if_fail (requisition != NULL);
+
+ requisition->width = 0;
+ requisition->height = 0;
+
+ if (GTK_WIDGET_VISIBLE (widget))
+ {
+ menu_bar = GTK_MENU_BAR (widget);
+ menu_shell = GTK_MENU_SHELL (widget);
+
+ nchildren = 0;
+ children = menu_shell->children;
+
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ if (GTK_WIDGET_VISIBLE (child))
+ {
+ GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
+ gtk_widget_size_request (child, &child->requisition);
+
+ requisition->width += child->requisition.width;
+ requisition->height = MAX (requisition->height, child->requisition.height);
+
+ nchildren += 1;
+ }
+ }
+
+ requisition->width += (GTK_CONTAINER (menu_bar)->border_width +
+ widget->style->klass->xthickness +
+ BORDER_SPACING) * 2;
+ requisition->height += (GTK_CONTAINER (menu_bar)->border_width +
+ widget->style->klass->ythickness +
+ BORDER_SPACING) * 2;
+
+ if (nchildren > 0)
+ requisition->width += 2 * CHILD_SPACING * (nchildren - 1);
+ }
+}
+
+static void
+gtk_menu_bar_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkMenuBar *menu_bar;
+ GtkMenuShell *menu_shell;
+ GtkWidget *child;
+ GList *children;
+ GtkAllocation child_allocation;
+ guint offset;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_MENU_BAR (widget));
+ g_return_if_fail (allocation != NULL);
+
+ menu_bar = GTK_MENU_BAR (widget);
+ menu_shell = GTK_MENU_SHELL (widget);
+
+ widget->allocation = *allocation;
+ if (GTK_WIDGET_REALIZED (widget))
+ gdk_window_move_resize (widget->window,
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+
+ if (menu_shell->children)
+ {
+ child_allocation.x = (GTK_CONTAINER (menu_bar)->border_width +
+ widget->style->klass->xthickness +
+ BORDER_SPACING);
+ offset = child_allocation.x; /* Window edge to menubar start */
+
+ child_allocation.y = (GTK_CONTAINER (menu_bar)->border_width +
+ widget->style->klass->ythickness +
+ BORDER_SPACING);
+ child_allocation.height = allocation->height - child_allocation.y * 2;
+
+ children = menu_shell->children;
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ /* Support for the right justified help menu */
+ if ( (children == NULL) && (GTK_IS_MENU_ITEM(child))
+ && (GTK_MENU_ITEM(child)->right_justify)) {
+ child_allocation.x = allocation->width -
+ child_allocation.width - CHILD_SPACING - offset;
+ }
+ if (GTK_WIDGET_VISIBLE (child))
+ {
+ child_allocation.width = child->requisition.width;
+
+ gtk_widget_size_allocate (child, &child_allocation);
+
+ child_allocation.x += child_allocation.width + CHILD_SPACING * 2;
+ }
+ }
+ }
+}
+
+static void
+gtk_menu_bar_paint (GtkWidget *widget)
+{
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_MENU_BAR (widget));
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ gtk_draw_shadow (widget->style,
+ widget->window,
+ GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ 0, 0,
+ widget->allocation.width,
+ widget->allocation.height);
+ }
+}
+
+static void
+gtk_menu_bar_draw (GtkWidget *widget,
+ GdkRectangle *area)
+{
+ GtkMenuShell *menu_shell;
+ GtkWidget *child;
+ GdkRectangle child_area;
+ GList *children;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_MENU_BAR (widget));
+ g_return_if_fail (area != NULL);
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ gtk_menu_bar_paint (widget);
+
+ menu_shell = GTK_MENU_SHELL (widget);
+
+ children = menu_shell->children;
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ if (gtk_widget_intersect (child, area, &child_area))
+ gtk_widget_draw (child, &child_area);
+ }
+ }
+}
+
+static gint
+gtk_menu_bar_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ GtkMenuShell *menu_shell;
+ GtkWidget *child;
+ GdkEventExpose child_event;
+ GList *children;
+
+ g_return_val_if_fail (widget != NULL, FALSE);
+ g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
+ g_return_val_if_fail (event != NULL, FALSE);
+
+ if (GTK_WIDGET_DRAWABLE (widget))
+ {
+ gtk_menu_bar_paint (widget);
+
+ menu_shell = GTK_MENU_SHELL (widget);
+ child_event = *event;
+
+ children = menu_shell->children;
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ if (GTK_WIDGET_NO_WINDOW (child) &&
+ gtk_widget_intersect (child, &event->area, &child_event.area))
+ gtk_widget_event (child, (GdkEvent*) &child_event);
+ }
+ }
+
+ return FALSE;
+}
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