1 files changed, 732 insertions, 0 deletions

diff --git a/gtk/gtkmenu.c b/gtk/gtkmenu.c
new file mode 100644
index 0000000000..13fff9023a
--- /dev/null
+++ b/gtk/gtkmenu.c
@@ -0,0 +1,732 @@
+/* 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 <ctype.h>
+#include "gdk/gdkkeysyms.h"
+#include "gtkmain.h"
+#include "gtkmenu.h"
+#include "gtkmenuitem.h"
+#include "gtksignal.h"
+
+
+#define MENU_ITEM_CLASS(w)  GTK_MENU_ITEM_CLASS (GTK_OBJECT (w)->klass)
+
+
+static void gtk_menu_class_init     (GtkMenuClass      *klass);
+static void gtk_menu_init           (GtkMenu           *menu);
+static void gtk_menu_show           (GtkWidget         *widget);
+static void gtk_menu_map            (GtkWidget         *widget);
+static void gtk_menu_unmap          (GtkWidget         *widget);
+static void gtk_menu_realize        (GtkWidget         *widget);
+static void gtk_menu_size_request   (GtkWidget         *widget,
+				     GtkRequisition    *requisition);
+static void gtk_menu_size_allocate  (GtkWidget         *widget,
+				     GtkAllocation     *allocation);
+static void gtk_menu_paint          (GtkWidget         *widget);
+static void gtk_menu_draw           (GtkWidget         *widget,
+				     GdkRectangle      *area);
+static gint gtk_menu_expose         (GtkWidget         *widget,
+				     GdkEventExpose    *event);
+static gint gtk_menu_configure      (GtkWidget         *widget,
+				     GdkEventConfigure *event);
+static gint gtk_menu_key_press      (GtkWidget         *widget,
+				     GdkEventKey       *event);
+static gint gtk_menu_need_resize    (GtkContainer      *container);
+static void gtk_menu_deactivate     (GtkMenuShell      *menu_shell);
+
+
+guint
+gtk_menu_get_type ()
+{
+  static guint menu_type = 0;
+
+  if (!menu_type)
+    {
+      GtkTypeInfo menu_info =
+      {
+	"GtkMenu",
+	sizeof (GtkMenu),
+	sizeof (GtkMenuClass),
+	(GtkClassInitFunc) gtk_menu_class_init,
+	(GtkObjectInitFunc) gtk_menu_init,
+	(GtkArgFunc) NULL,
+      };
+
+      menu_type = gtk_type_unique (gtk_menu_shell_get_type (), &menu_info);
+    }
+
+  return menu_type;
+}
+
+static void
+gtk_menu_class_init (GtkMenuClass *class)
+{
+  GtkWidgetClass *widget_class;
+  GtkContainerClass *container_class;
+  GtkMenuShellClass *menu_shell_class;
+
+  widget_class = (GtkWidgetClass*) class;
+  container_class = (GtkContainerClass*) class;
+  menu_shell_class = (GtkMenuShellClass*) class;
+
+  widget_class->show = gtk_menu_show;
+  widget_class->map = gtk_menu_map;
+  widget_class->unmap = gtk_menu_unmap;
+  widget_class->realize = gtk_menu_realize;
+  widget_class->draw = gtk_menu_draw;
+  widget_class->size_request = gtk_menu_size_request;
+  widget_class->size_allocate = gtk_menu_size_allocate;
+  widget_class->expose_event = gtk_menu_expose;
+  widget_class->configure_event = gtk_menu_configure;
+  widget_class->key_press_event = gtk_menu_key_press;
+
+  container_class->need_resize = gtk_menu_need_resize;
+
+  menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
+  menu_shell_class->deactivate = gtk_menu_deactivate;
+}
+
+static void
+gtk_menu_init (GtkMenu *menu)
+{
+  GTK_WIDGET_SET_FLAGS (menu, GTK_ANCHORED);
+
+  menu->parent_menu_item = NULL;
+  menu->old_active_menu_item = NULL;
+  menu->accelerator_table = NULL;
+  menu->position_func = NULL;
+  menu->position_func_data = NULL;
+
+  GTK_MENU_SHELL (menu)->menu_flag = TRUE;
+}
+
+GtkWidget*
+gtk_menu_new ()
+{
+  return GTK_WIDGET (gtk_type_new (gtk_menu_get_type ()));
+}
+
+void
+gtk_menu_append (GtkMenu   *menu,
+		 GtkWidget *child)
+{
+  gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
+}
+
+void
+gtk_menu_prepend (GtkMenu   *menu,
+		  GtkWidget *child)
+{
+  gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), child);
+}
+
+void
+gtk_menu_insert (GtkMenu   *menu,
+		 GtkWidget *child,
+		 gint       position)
+{
+  gtk_menu_shell_insert (GTK_MENU_SHELL (menu), child, position);
+}
+
+void
+gtk_menu_popup (GtkMenu             *menu,
+		GtkWidget           *parent_menu_shell,
+		GtkWidget           *parent_menu_item,
+		GtkMenuPositionFunc  func,
+		gpointer             data,
+		gint                 button,
+		guint32              activate_time)
+{
+  g_return_if_fail (menu != NULL);
+  g_return_if_fail (GTK_IS_MENU (menu));
+
+  GTK_MENU_SHELL (menu)->parent_menu_shell = parent_menu_shell;
+  GTK_MENU_SHELL (menu)->active = TRUE;
+  GTK_MENU_SHELL (menu)->button = button;
+
+  menu->parent_menu_item = parent_menu_item;
+  menu->position_func = func;
+  menu->position_func_data = data;
+  GTK_MENU_SHELL (menu)->activate_time = activate_time;
+
+  gtk_widget_show (GTK_WIDGET (menu));
+  gtk_grab_add (GTK_WIDGET (menu));
+}
+
+void
+gtk_menu_popdown (GtkMenu *menu)
+{
+  GtkMenuShell *menu_shell;
+
+  g_return_if_fail (menu != NULL);
+  g_return_if_fail (GTK_IS_MENU (menu));
+
+  menu_shell = GTK_MENU_SHELL (menu);
+
+  menu_shell->parent_menu_shell = NULL;
+  menu_shell->active = FALSE;
+
+  if (menu_shell->active_menu_item)
+    {
+      menu->old_active_menu_item = menu_shell->active_menu_item;
+      gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
+      menu_shell->active_menu_item = NULL;
+    }
+
+  gtk_widget_hide (GTK_WIDGET (menu));
+  gtk_grab_remove (GTK_WIDGET (menu));
+}
+
+GtkWidget*
+gtk_menu_get_active (GtkMenu *menu)
+{
+  GtkWidget *child;
+  GList *children;
+
+  g_return_val_if_fail (menu != NULL, NULL);
+  g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
+
+  if (!menu->old_active_menu_item)
+    {
+      child = NULL;
+      children = GTK_MENU_SHELL (menu)->children;
+
+      while (children)
+	{
+	  child = children->data;
+	  children = children->next;
+
+	  if (GTK_BIN (child)->child)
+	    break;
+	  child = NULL;
+	}
+
+      menu->old_active_menu_item = child;
+    }
+
+  return menu->old_active_menu_item;
+}
+
+void
+gtk_menu_set_active (GtkMenu *menu,
+		     gint     index)
+{
+  GtkWidget *child;
+  GList *tmp_list;
+
+  g_return_if_fail (menu != NULL);
+  g_return_if_fail (GTK_IS_MENU (menu));
+
+  tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
+  if (tmp_list)
+    {
+      child = tmp_list->data;
+      if (GTK_BIN (child)->child)
+	menu->old_active_menu_item = child;
+    }
+}
+
+void
+gtk_menu_set_accelerator_table (GtkMenu             *menu,
+				GtkAcceleratorTable *table)
+{
+  g_return_if_fail (menu != NULL);
+  g_return_if_fail (GTK_IS_MENU (menu));
+
+  if (menu->accelerator_table)
+    gtk_accelerator_table_unref (menu->accelerator_table);
+
+  menu->accelerator_table = table;
+  if (menu->accelerator_table)
+    gtk_accelerator_table_ref (menu->accelerator_table);
+}
+
+
+static void
+gtk_menu_show (GtkWidget *widget)
+{
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+
+  GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
+  gtk_widget_map (widget);
+}
+
+static void
+gtk_menu_map (GtkWidget *widget)
+{
+  GtkMenu *menu;
+  GtkMenuShell *menu_shell;
+  GtkWidget *child;
+  GList *children;
+  GtkAllocation allocation;
+  gint x, y;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+
+  menu = GTK_MENU (widget);
+  menu_shell = GTK_MENU_SHELL (widget);
+  GTK_WIDGET_SET_FLAGS (menu_shell, GTK_MAPPED);
+  GTK_WIDGET_UNSET_FLAGS (menu_shell, GTK_UNMAPPED);
+
+  gtk_widget_size_request (widget, &widget->requisition);
+
+  if (menu_shell->menu_flag)
+    {
+      menu_shell->menu_flag = FALSE;
+
+      allocation.x = widget->allocation.x;
+      allocation.y = widget->allocation.y;
+      allocation.width = widget->requisition.width;
+      allocation.height = widget->requisition.height;
+
+      gtk_widget_size_allocate (widget, &allocation);
+    }
+
+  gdk_window_get_pointer (NULL, &x, &y, NULL);
+
+  if (menu->position_func)
+    (* menu->position_func) (menu, &x, &y, menu->position_func_data);
+  else
+    {
+      gint screen_width;
+      gint screen_height;
+
+      screen_width = gdk_screen_width ();
+      screen_height = gdk_screen_height ();
+
+      x -= 2;
+      y -= 2;
+
+      if ((x + widget->requisition.width) > screen_width)
+	x -= ((x + widget->requisition.width) - screen_width);
+      if (x < 0)
+	x = 0;
+      if ((y + widget->requisition.height) > screen_height)
+	y -= ((y + widget->requisition.height) - screen_height);
+      if (y < 0)
+	y = 0;
+    }
+
+  gdk_window_move_resize (widget->window, x, y,
+			  widget->requisition.width,
+			  widget->requisition.height);
+
+  children = menu_shell->children;
+  while (children)
+    {
+      child = children->data;
+      children = children->next;
+
+      if (GTK_WIDGET_VISIBLE (child) && !GTK_WIDGET_MAPPED (child))
+        gtk_widget_map (child);
+    }
+
+  gdk_window_show (widget->window);
+}
+
+static void
+gtk_menu_unmap (GtkWidget *widget)
+{
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+
+  GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+  GTK_WIDGET_SET_FLAGS (widget, GTK_UNMAPPED);
+  gdk_window_hide (widget->window);
+}
+
+static void
+gtk_menu_realize (GtkWidget *widget)
+{
+  GdkWindowAttr attributes;
+  gint attributes_mask;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+
+  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+
+  attributes.x = widget->allocation.x;
+  attributes.y = widget->allocation.y;
+  attributes.width = widget->allocation.width;
+  attributes.height = widget->allocation.height;
+  attributes.wclass = GDK_INPUT_OUTPUT;
+  attributes.visual = gtk_widget_get_visual (widget);
+  attributes.colormap = gtk_widget_get_colormap (widget);
+  attributes.window_type = GDK_WINDOW_TEMP;
+  attributes.event_mask = gtk_widget_get_events (widget);
+  attributes.event_mask |= (GDK_EXPOSURE_MASK |
+			    GDK_KEY_PRESS_MASK |
+			    GDK_STRUCTURE_MASK);
+
+  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+  widget->window = gdk_window_new (NULL, &attributes, attributes_mask);
+  gdk_window_set_user_data (widget->window, widget);
+
+  widget->style = gtk_style_attach (widget->style, widget->window);
+  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+}
+
+static void
+gtk_menu_size_request (GtkWidget      *widget,
+		       GtkRequisition *requisition)
+{
+  GtkMenu *menu;
+  GtkMenuShell *menu_shell;
+  GtkWidget *child;
+  GList *children;
+  gint max_accelerator_size;
+  gint max_toggle_size;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+  g_return_if_fail (requisition != NULL);
+
+  menu = GTK_MENU (widget);
+  menu_shell = GTK_MENU_SHELL (widget);
+
+  requisition->width = 0;
+  requisition->height = 0;
+
+  max_accelerator_size = 0;
+  max_toggle_size = 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 = TRUE;
+	  gtk_widget_size_request (child, &child->requisition);
+
+	  requisition->width = MAX (requisition->width, child->requisition.width);
+	  requisition->height += child->requisition.height;
+
+	  max_accelerator_size = MAX (max_accelerator_size, GTK_MENU_ITEM (child)->accelerator_size);
+	  max_toggle_size = MAX (max_toggle_size, MENU_ITEM_CLASS (child)->toggle_size);
+	}
+    }
+
+  requisition->width += max_toggle_size + max_accelerator_size;
+  requisition->width += (GTK_CONTAINER (menu)->border_width +
+			 widget->style->klass->xthickness) * 2;
+  requisition->height += (GTK_CONTAINER (menu)->border_width +
+			  widget->style->klass->ythickness) * 2;
+
+  children = menu_shell->children;
+  while (children)
+    {
+      child = children->data;
+      children = children->next;
+
+      GTK_MENU_ITEM (child)->accelerator_size = max_accelerator_size;
+      GTK_MENU_ITEM (child)->toggle_size = max_toggle_size;
+    }
+}
+
+static void
+gtk_menu_size_allocate (GtkWidget     *widget,
+			GtkAllocation *allocation)
+{
+  GtkMenu *menu;
+  GtkMenuShell *menu_shell;
+  GtkWidget *child;
+  GtkAllocation child_allocation;
+  GList *children;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (widget));
+  g_return_if_fail (allocation != NULL);
+
+  menu = GTK_MENU (widget);
+  menu_shell = GTK_MENU_SHELL (widget);
+
+  widget->allocation = *allocation;
+
+  if (menu_shell->children)
+    {
+      child_allocation.x = (GTK_CONTAINER (menu)->border_width +
+			    widget->style->klass->xthickness);
+      child_allocation.y = (GTK_CONTAINER (menu)->border_width +
+			    widget->style->klass->ythickness);
+      child_allocation.width = allocation->width - child_allocation.x * 2;
+
+      children = menu_shell->children;
+      while (children)
+	{
+	  child = children->data;
+	  children = children->next;
+
+	  if (GTK_WIDGET_VISIBLE (child))
+	    {
+	      child_allocation.height = child->requisition.height;
+
+	      gtk_widget_size_allocate (child, &child_allocation);
+
+	      child_allocation.y += child_allocation.height;
+	    }
+	}
+    }
+}
+
+static void
+gtk_menu_paint (GtkWidget *widget)
+{
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU (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_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 (widget));
+  g_return_if_fail (area != NULL);
+
+  if (GTK_WIDGET_DRAWABLE (widget))
+    {
+      gtk_menu_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_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 (widget), FALSE);
+  g_return_val_if_fail (event != NULL, FALSE);
+
+  if (!GTK_WIDGET_UNMAPPED (widget))
+    GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
+
+  if (GTK_WIDGET_DRAWABLE (widget))
+    {
+      gtk_menu_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;
+}
+
+static gint
+gtk_menu_configure (GtkWidget         *widget,
+		    GdkEventConfigure *event)
+{
+  GtkAllocation allocation;
+
+  g_return_val_if_fail (widget != NULL, FALSE);
+  g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
+  g_return_val_if_fail (event != NULL, FALSE);
+
+  if (GTK_MENU_SHELL (widget)->menu_flag)
+    {
+      GTK_MENU_SHELL (widget)->menu_flag = FALSE;
+
+      allocation.x = 0;
+      allocation.y = 0;
+      allocation.width = event->width;
+      allocation.height = event->height;
+
+      gtk_widget_size_allocate (widget, &allocation);
+    }
+
+  return FALSE;
+}
+
+static gint
+gtk_menu_key_press (GtkWidget   *widget,
+		    GdkEventKey *event)
+{
+  GtkAllocation allocation;
+  GtkAcceleratorTable *table;
+  GtkMenuShell *menu_shell;
+  GtkMenuItem *menu_item;
+  gchar *signame;
+  int delete;
+
+  g_return_val_if_fail (widget != NULL, FALSE);
+  g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
+  g_return_val_if_fail (event != NULL, FALSE);
+
+  delete = ((event->keyval == GDK_Delete) ||
+	    (event->keyval == GDK_BackSpace));
+
+  if (delete || ((event->keyval >= 0x20) && (event->keyval <= 0xFF)))
+    {
+      menu_shell = GTK_MENU_SHELL (widget);
+      menu_item = GTK_MENU_ITEM (menu_shell->active_menu_item);
+
+      if (menu_item && GTK_BIN (menu_item)->child)
+	{
+	  /* block resizes */
+	  gtk_container_block_resize (GTK_CONTAINER (widget));
+
+	  table = NULL;
+	  /* if the menu item currently has an accelerator then we'll
+	   *  remove it before we do anything else.
+	   */
+	  if (menu_item->accelerator_signal)
+	    {
+	      signame = gtk_signal_name (menu_item->accelerator_signal);
+	      table = gtk_accelerator_table_find (GTK_OBJECT (widget),
+						  signame,
+						  menu_item->accelerator_key,
+						  menu_item->accelerator_mods);
+	      if (!table)
+		table = GTK_MENU (widget)->accelerator_table;
+	      gtk_widget_remove_accelerator (GTK_WIDGET (menu_item),
+					     table, signame);
+	    }
+
+	  if (!table)
+	    table = GTK_MENU (widget)->accelerator_table;
+
+	  /* if we aren't simply deleting the accelerator, then we'll install
+	   *  the new one now.
+	   */
+	  if (!delete)
+	    gtk_widget_install_accelerator (GTK_WIDGET (menu_item),
+					    table, "activate",
+					    toupper (event->keyval),
+					    event->state);
+
+	  /* check and see if the menu has changed size. */
+	  gtk_widget_size_request (widget, &widget->requisition);
+
+	  allocation.x = widget->allocation.x;
+	  allocation.y = widget->allocation.y;
+	  allocation.width = widget->requisition.width;
+	  allocation.height = widget->requisition.height;
+
+	  if ((allocation.width == widget->allocation.width) &&
+	      (allocation.height == widget->allocation.height))
+	    {
+	      gtk_widget_queue_draw (widget);
+	    }
+	  else
+	    {
+	      gtk_widget_size_allocate (GTK_WIDGET (widget), &allocation);
+	      gtk_menu_map (widget);
+	    }
+
+	  /* unblock resizes */
+	  gtk_container_unblock_resize (GTK_CONTAINER (widget));
+	}
+    }
+
+  return FALSE;
+}
+
+static gint
+gtk_menu_need_resize (GtkContainer *container)
+{
+  GtkAllocation allocation;
+
+  g_return_val_if_fail (container != NULL, FALSE);
+  g_return_val_if_fail (GTK_IS_MENU (container), FALSE);
+
+  if (GTK_WIDGET_VISIBLE (container))
+    {
+      GTK_MENU_SHELL (container)->menu_flag = FALSE;
+
+      gtk_widget_size_request (GTK_WIDGET (container),
+			       &GTK_WIDGET (container)->requisition);
+
+      allocation.x = GTK_WIDGET (container)->allocation.x;
+      allocation.y = GTK_WIDGET (container)->allocation.y;
+      allocation.width = GTK_WIDGET (container)->requisition.width;
+      allocation.height = GTK_WIDGET (container)->requisition.height;
+
+      gtk_widget_size_allocate (GTK_WIDGET (container), &allocation);
+    }
+  else
+    {
+      GTK_MENU_SHELL (container)->menu_flag = TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+gtk_menu_deactivate (GtkMenuShell *menu_shell)
+{
+  GtkMenuShell *parent;
+
+  g_return_if_fail (menu_shell != NULL);
+  g_return_if_fail (GTK_IS_MENU (menu_shell));
+
+  parent = GTK_MENU_SHELL (menu_shell->parent_menu_shell);
+
+  menu_shell->activate_time = 0;
+  gtk_menu_popdown (GTK_MENU (menu_shell));
+
+  if (parent)
+    gtk_menu_shell_deactivate (parent);
+}