gtktreeview.c

/* gtktreeview.c
 * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */


#include <config.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>

#include "gtktreeview.h"
#include "gtkrbtree.h"
#include "gtktreednd.h"
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkarrow.h"
#include "gtkintl.h"
#include "gtkbindings.h"
#include "gtkcontainer.h"
#include "gtkentry.h"
#include "gtktreemodelsort.h"

#define GTK_TREE_VIEW_SEARCH_DIALOG_KEY "gtk-tree-view-search-dialog"

#define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
#define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
#define GTK_TREE_VIEW_NUM_ROWS_PER_IDLE 500
#define SCROLL_EDGE_SIZE 15
#define EXPANDER_EXTRA_PADDING 4

/* The "background" areas of all rows/cells add up to cover the entire tree.
 * The background includes all inter-row and inter-cell spacing.
 * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
 * i.e. just the cells, no spacing.
 */

#define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
#define CELL_HEIGHT(node, separator) ((BACKGROUND_HEIGHT (node)) - (separator))

#define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
#define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)

/* This is in Window coordinates */
#define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, _gtk_rbtree_node_find_offset ((tree), (node))))
#define CELL_FIRST_PIXEL(tree_view,tree,node,separator) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + separator/2)


typedef struct _GtkTreeViewChild GtkTreeViewChild;
struct _GtkTreeViewChild
{
  GtkWidget *widget;
  gint x;
  gint y;
  gint width;
  gint height;
};


typedef struct _TreeViewDragInfo TreeViewDragInfo;
struct _TreeViewDragInfo
{
  GdkModifierType start_button_mask;
  GtkTargetList *source_target_list;
  GdkDragAction source_actions;

  GtkTargetList *dest_target_list;

  guint source_set : 1;
  guint dest_set : 1;
};


/* Signals */
enum
{
  ROW_ACTIVATED,
  TEST_EXPAND_ROW,
  TEST_COLLAPSE_ROW,
  ROW_EXPANDED,
  ROW_COLLAPSED,
  COLUMNS_CHANGED,
  CURSOR_CHANGED,
  MOVE_CURSOR,
  SELECT_ALL,
  UNSELECT_ALL,
  SELECT_CURSOR_ROW,
  TOGGLE_CURSOR_ROW,
  EXPAND_COLLAPSE_CURSOR_ROW,
  SELECT_CURSOR_PARENT,
  START_INTERACTIVE_SEARCH,
  LAST_SIGNAL
};

/* Properties */
enum {
  PROP_0,
  PROP_MODEL,
  PROP_HADJUSTMENT,
  PROP_VADJUSTMENT,
  PROP_HEADERS_VISIBLE,
  PROP_HEADERS_CLICKABLE,
  PROP_EXPANDER_COLUMN,
  PROP_REORDERABLE,
  PROP_RULES_HINT,
  PROP_ENABLE_SEARCH,
  PROP_SEARCH_COLUMN,
  PROP_FIXED_HEIGHT_MODE
};

static void     gtk_tree_view_class_init           (GtkTreeViewClass *klass);
static void     gtk_tree_view_init                 (GtkTreeView      *tree_view);

/* object signals */
static void     gtk_tree_view_finalize             (GObject          *object);
static void     gtk_tree_view_set_property         (GObject         *object,
						    guint            prop_id,
						    const GValue    *value,
						    GParamSpec      *pspec);
static void     gtk_tree_view_get_property         (GObject         *object,
						    guint            prop_id,
						    GValue          *value,
						    GParamSpec      *pspec);

/* gtkobject signals */
static void     gtk_tree_view_destroy              (GtkObject        *object);

/* gtkwidget signals */
static void     gtk_tree_view_realize              (GtkWidget        *widget);
static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
static void     gtk_tree_view_map                  (GtkWidget        *widget);
static void     gtk_tree_view_size_request         (GtkWidget        *widget,
						    GtkRequisition   *requisition);
static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
						    GtkAllocation    *allocation);
static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
						    GdkEventExpose   *event);
static gboolean gtk_tree_view_key_press            (GtkWidget        *widget,
						    GdkEventKey      *event);
static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
						    GdkEventMotion   *event);
static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
						    GdkEventCrossing *event);
static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
						    GdkEventCrossing *event);
static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
						    GdkEventButton   *event);
static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
						    GdkEventButton   *event);
static void     gtk_tree_view_set_focus_child      (GtkContainer     *container,
						    GtkWidget        *child);
static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
						    GdkEventFocus    *event);
static gint     gtk_tree_view_focus                (GtkWidget        *widget,
						    GtkDirectionType  direction);
static void     gtk_tree_view_grab_focus           (GtkWidget        *widget);
static void     gtk_tree_view_style_set            (GtkWidget        *widget,
						    GtkStyle         *previous_style);

/* container signals */
static void     gtk_tree_view_remove               (GtkContainer     *container,
						    GtkWidget        *widget);
static void     gtk_tree_view_forall               (GtkContainer     *container,
						    gboolean          include_internals,
						    GtkCallback       callback,
						    gpointer          callback_data);

/* Source side drag signals */
static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void gtk_tree_view_drag_end         (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
                                            GdkDragContext   *context,
                                            GtkSelectionData *selection_data,
                                            guint             info,
                                            guint             time);
static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
                                            GdkDragContext   *context);

/* Target side drag signals */
static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  guint             time);
static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  GtkSelectionData *selection_data,
                                                  guint             info,
                                                  guint             time);

/* tree_model signals */
static void gtk_tree_view_set_adjustments                 (GtkTreeView     *tree_view,
							   GtkAdjustment   *hadj,
							   GtkAdjustment   *vadj);
static gboolean gtk_tree_view_real_move_cursor            (GtkTreeView     *tree_view,
							   GtkMovementStep  step,
							   gint             count);
static gboolean gtk_tree_view_real_select_all             (GtkTreeView     *tree_view);
static gboolean gtk_tree_view_real_unselect_all           (GtkTreeView     *tree_view);
static gboolean gtk_tree_view_real_select_cursor_row      (GtkTreeView     *tree_view,
							   gboolean         start_editing);
static gboolean gtk_tree_view_real_toggle_cursor_row      (GtkTreeView     *tree_view);
static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView     *tree_view,
							       gboolean         logical,
							       gboolean         expand,
							       gboolean         open_all);
static gboolean gtk_tree_view_real_select_cursor_parent   (GtkTreeView     *tree_view);
static void gtk_tree_view_row_changed                     (GtkTreeModel    *model,
							   GtkTreePath     *path,
							   GtkTreeIter     *iter,
							   gpointer         data);
static void gtk_tree_view_row_inserted                    (GtkTreeModel    *model,
							   GtkTreePath     *path,
							   GtkTreeIter     *iter,
							   gpointer         data);
static void gtk_tree_view_row_has_child_toggled           (GtkTreeModel    *model,
							   GtkTreePath     *path,
							   GtkTreeIter     *iter,
							   gpointer         data);
static void gtk_tree_view_row_deleted                     (GtkTreeModel    *model,
							   GtkTreePath     *path,
							   gpointer         data);
static void gtk_tree_view_rows_reordered                  (GtkTreeModel    *model,
							   GtkTreePath     *parent,
							   GtkTreeIter     *iter,
							   gint            *new_order,
							   gpointer         data);

/* Incremental reflow */
static gboolean validate_row             (GtkTreeView *tree_view,
					  GtkRBTree   *tree,
					  GtkRBNode   *node,
					  GtkTreeIter *iter,
					  GtkTreePath *path);
static void     validate_visible_area    (GtkTreeView *tree_view);
static gboolean validate_rows_handler    (GtkTreeView *tree_view);
static gboolean validate_rows            (GtkTreeView *tree_view);
static gboolean presize_handler_callback (gpointer     data);
static void     install_presize_handler  (GtkTreeView *tree_view);
static void     install_scroll_sync_handler (GtkTreeView *tree_view);
static void	gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
static void     gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);


/* Internal functions */
static gboolean gtk_tree_view_is_expander_column             (GtkTreeView       *tree_view,
							      GtkTreeViewColumn *column);
static void     gtk_tree_view_add_move_binding               (GtkBindingSet     *binding_set,
							      guint              keyval,
							      guint              modmask,
							      GtkMovementStep    step,
							      gint               count);
static gint     gtk_tree_view_unref_and_check_selection_tree (GtkTreeView       *tree_view,
							      GtkRBTree         *tree);
static void     gtk_tree_view_queue_draw_path                (GtkTreeView       *tree_view,
							      GtkTreePath       *path,
							      GdkRectangle      *clip_rect);
static void     gtk_tree_view_queue_draw_arrow               (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      GtkRBNode         *node,
							      GdkRectangle      *clip_rect);
static void     gtk_tree_view_draw_arrow                     (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      GtkRBNode         *node,
							      gint               x,
							      gint               y);
static void     gtk_tree_view_get_arrow_xrange               (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      gint              *x1,
							      gint              *x2);
static gint     gtk_tree_view_new_column_width               (GtkTreeView       *tree_view,
							      gint               i,
							      gint              *x);
static void     gtk_tree_view_adjustment_changed             (GtkAdjustment     *adjustment,
							      GtkTreeView       *tree_view);
static void     gtk_tree_view_build_tree                     (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      GtkTreeIter       *iter,
							      gint               depth,
							      gboolean           recurse);
static gboolean gtk_tree_view_discover_dirty_iter            (GtkTreeView       *tree_view,
							      GtkTreeIter       *iter,
							      gint               depth,
							      gint              *height,
							      GtkRBNode         *node);
static void     gtk_tree_view_discover_dirty                 (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      GtkTreeIter       *iter,
							      gint               depth);
static void     gtk_tree_view_clamp_node_visible             (GtkTreeView       *tree_view,
							      GtkRBTree         *tree,
							      GtkRBNode         *node);
static void     gtk_tree_view_clamp_column_visible           (GtkTreeView       *tree_view,
							      GtkTreeViewColumn *column);
static gboolean gtk_tree_view_maybe_begin_dragging_row       (GtkTreeView       *tree_view,
							      GdkEventMotion    *event);
static void     gtk_tree_view_focus_to_cursor                (GtkTreeView       *tree_view);
static void     gtk_tree_view_move_cursor_up_down            (GtkTreeView       *tree_view,
							      gint               count);
static void     gtk_tree_view_move_cursor_page_up_down       (GtkTreeView       *tree_view,
							      gint               count);
static void     gtk_tree_view_move_cursor_left_right         (GtkTreeView       *tree_view,
							      gint               count);
static void     gtk_tree_view_move_cursor_start_end          (GtkTreeView       *tree_view,
							      gint               count);
static gboolean gtk_tree_view_real_collapse_row              (GtkTreeView       *tree_view,
							      GtkTreePath       *path,
							      GtkRBTree         *tree,
							      GtkRBNode         *node,
							      gboolean           animate);
static gboolean gtk_tree_view_real_expand_row                (GtkTreeView       *tree_view,
							      GtkTreePath       *path,
							      GtkRBTree         *tree,
							      GtkRBNode         *node,
							      gboolean           open_all,
							      gboolean           animate);
static void     gtk_tree_view_real_set_cursor                (GtkTreeView       *tree_view,
							      GtkTreePath       *path,
							      gboolean           clear_and_select,
							      gboolean           clamp_node);
static gboolean gtk_tree_view_has_special_cell               (GtkTreeView       *tree_view);
static void     column_sizing_notify                         (GObject           *object,
                                                              GParamSpec        *pspec,
                                                              gpointer           data);
static void     gtk_tree_view_set_fixed_height_mode          (GtkTreeView       *tree_view,
                                                              gboolean           enable);

static gboolean expand_collapse_timeout                      (gpointer           data);
static gboolean do_expand_collapse                           (GtkTreeView       *tree_view);

/* interactive search */
static void     gtk_tree_view_search_dialog_destroy     (GtkWidget        *search_dialog,
							 GtkTreeView      *tree_view);
static void     gtk_tree_view_search_position_func      (GtkTreeView      *tree_view,
							 GtkWidget        *search_dialog);
static void     gtk_tree_view_search_disable_popdown    (GtkEntry         *entry,
							 GtkMenu          *menu,
							 gpointer          data);
static gboolean gtk_tree_view_real_search_enable_popdown(gpointer          data);
static void     gtk_tree_view_search_enable_popdown     (GtkWidget        *widget,
							 gpointer          data);
static gboolean gtk_tree_view_search_delete_event       (GtkWidget        *widget,
							 GdkEventAny      *event,
							 GtkTreeView      *tree_view);
static gboolean gtk_tree_view_search_button_press_event (GtkWidget        *widget,
							 GdkEventButton   *event,
							 GtkTreeView      *tree_view);
static gboolean gtk_tree_view_search_key_press_event    (GtkWidget        *entry,
							 GdkEventKey      *event,
							 GtkTreeView      *tree_view);
static void     gtk_tree_view_search_move               (GtkWidget        *window,
							 GtkTreeView      *tree_view,
							 gboolean          up);
static gboolean gtk_tree_view_search_equal_func         (GtkTreeModel     *model,
							 gint              column,
							 const gchar      *key,
							 GtkTreeIter      *iter,
							 gpointer          search_data);
static gboolean gtk_tree_view_search_iter               (GtkTreeModel     *model,
							 GtkTreeSelection *selection,
							 GtkTreeIter      *iter,
							 const gchar      *text,
							 gint             *count,
							 gint              n);
static void     gtk_tree_view_search_init               (GtkWidget        *entry,
							 GtkTreeView      *tree_view);
static void     gtk_tree_view_put                       (GtkTreeView      *tree_view,
							 GtkWidget        *child_widget,
							 gint              x,
							 gint              y,
							 gint              width,
							 gint              height);
static gboolean gtk_tree_view_start_editing             (GtkTreeView      *tree_view,
							 GtkTreePath      *cursor_path);
static void gtk_tree_view_real_start_editing (GtkTreeView       *tree_view,
					      GtkTreeViewColumn *column,
					      GtkTreePath       *path,
					      GtkCellEditable   *cell_editable,
					      GdkRectangle      *cell_area,
					      GdkEvent          *event,
					      guint              flags);
static void gtk_tree_view_stop_editing                  (GtkTreeView *tree_view,
							 gboolean     cancel_editing);
static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view);
static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView       *tree_view,
							 GtkTreeViewColumn *column,
							 gint               drop_position);


static GtkContainerClass *parent_class = NULL;
static guint tree_view_signals [LAST_SIGNAL] = { 0 };



/* GType Methods
 */

GType
gtk_tree_view_get_type (void)
{
  static GType tree_view_type = 0;

  if (!tree_view_type)
    {
      static const GTypeInfo tree_view_info =
      {
        sizeof (GtkTreeViewClass),
	NULL,		/* base_init */
	NULL,		/* base_finalize */
        (GClassInitFunc) gtk_tree_view_class_init,
	NULL,		/* class_finalize */
	NULL,		/* class_data */
        sizeof (GtkTreeView),
	0,              /* n_preallocs */
        (GInstanceInitFunc) gtk_tree_view_init
      };

      tree_view_type =
	g_type_register_static (GTK_TYPE_CONTAINER, "GtkTreeView",
				&tree_view_info, 0);
    }

  return tree_view_type;
}

static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
  GObjectClass *o_class;
  GtkObjectClass *object_class;
  GtkWidgetClass *widget_class;
  GtkContainerClass *container_class;
  GtkBindingSet *binding_set;

  parent_class = g_type_class_peek_parent (class);
  binding_set = gtk_binding_set_by_class (class);

  o_class = (GObjectClass *) class;
  object_class = (GtkObjectClass *) class;
  widget_class = (GtkWidgetClass *) class;
  container_class = (GtkContainerClass *) class;

  /* GObject signals */
  o_class->set_property = gtk_tree_view_set_property;
  o_class->get_property = gtk_tree_view_get_property;
  o_class->finalize = gtk_tree_view_finalize;

  /* GtkObject signals */
  object_class->destroy = gtk_tree_view_destroy;

  /* GtkWidget signals */
  widget_class->map = gtk_tree_view_map;
  widget_class->realize = gtk_tree_view_realize;
  widget_class->unrealize = gtk_tree_view_unrealize;
  widget_class->size_request = gtk_tree_view_size_request;
  widget_class->size_allocate = gtk_tree_view_size_allocate;
  widget_class->button_press_event = gtk_tree_view_button_press;
  widget_class->button_release_event = gtk_tree_view_button_release;
  widget_class->motion_notify_event = gtk_tree_view_motion;
  widget_class->expose_event = gtk_tree_view_expose;
  widget_class->key_press_event = gtk_tree_view_key_press;
  widget_class->enter_notify_event = gtk_tree_view_enter_notify;
  widget_class->leave_notify_event = gtk_tree_view_leave_notify;
  widget_class->focus_out_event = gtk_tree_view_focus_out;
  widget_class->drag_begin = gtk_tree_view_drag_begin;
  widget_class->drag_end = gtk_tree_view_drag_end;
  widget_class->drag_data_get = gtk_tree_view_drag_data_get;
  widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
  widget_class->drag_leave = gtk_tree_view_drag_leave;
  widget_class->drag_motion = gtk_tree_view_drag_motion;
  widget_class->drag_drop = gtk_tree_view_drag_drop;
  widget_class->drag_data_received = gtk_tree_view_drag_data_received;
  widget_class->focus = gtk_tree_view_focus;
  widget_class->grab_focus = gtk_tree_view_grab_focus;
  widget_class->style_set = gtk_tree_view_style_set;

  /* GtkContainer signals */
  container_class->remove = gtk_tree_view_remove;
  container_class->forall = gtk_tree_view_forall;
  container_class->set_focus_child = gtk_tree_view_set_focus_child;

  class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
  class->move_cursor = gtk_tree_view_real_move_cursor;
  class->select_all = gtk_tree_view_real_select_all;
  class->unselect_all = gtk_tree_view_real_unselect_all;
  class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
  class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
  class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
  class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
  class->start_interactive_search = gtk_tree_view_real_start_interactive_search;

  /* Properties */

  g_object_class_install_property (o_class,
                                   PROP_MODEL,
                                   g_param_spec_object ("model",
							P_("TreeView Model"),
							P_("The model for the tree view"),
							GTK_TYPE_TREE_MODEL,
							G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_HADJUSTMENT,
                                   g_param_spec_object ("hadjustment",
							P_("Horizontal Adjustment"),
                                                        P_("Horizontal Adjustment for the widget"),
                                                        GTK_TYPE_ADJUSTMENT,
                                                        G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_VADJUSTMENT,
                                   g_param_spec_object ("vadjustment",
							P_("Vertical Adjustment"),
                                                        P_("Vertical Adjustment for the widget"),
                                                        GTK_TYPE_ADJUSTMENT,
                                                        G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_HEADERS_VISIBLE,
                                   g_param_spec_boolean ("headers_visible",
							 P_("Visible"),
							 P_("Show the column header buttons"),
							 TRUE,
							 G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_HEADERS_CLICKABLE,
                                   g_param_spec_boolean ("headers_clickable",
							 P_("Headers Clickable"),
							 P_("Column headers respond to click events"),
							 FALSE,
							 G_PARAM_WRITABLE));

  g_object_class_install_property (o_class,
                                   PROP_EXPANDER_COLUMN,
                                   g_param_spec_object ("expander_column",
							P_("Expander Column"),
							P_("Set the column for the expander column"),
							GTK_TYPE_TREE_VIEW_COLUMN,
							G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_REORDERABLE,
                                   g_param_spec_boolean ("reorderable",
							 P_("Reorderable"),
							 P_("View is reorderable"),
							 FALSE,
							 G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_RULES_HINT,
                                   g_param_spec_boolean ("rules_hint",
							 P_("Rules Hint"),
							 P_("Set a hint to the theme engine to draw rows in alternating colors"),
							 FALSE,
							 G_PARAM_READWRITE));

    g_object_class_install_property (o_class,
				     PROP_ENABLE_SEARCH,
				     g_param_spec_boolean ("enable_search",
							   P_("Enable Search"),
							   P_("View allows user to search through columns interactively"),
							   TRUE,
							   G_PARAM_READWRITE));

    g_object_class_install_property (o_class,
				     PROP_SEARCH_COLUMN,
				     g_param_spec_int ("search_column",
						       P_("Search Column"),
						       P_("Model column to search through when searching through code"),
						       -1,
						       G_MAXINT,
						       0,
						       G_PARAM_READWRITE));

    g_object_class_install_property (o_class,
                                     PROP_FIXED_HEIGHT_MODE,
                                     g_param_spec_boolean ("fixed_height_mode",
                                                           P_("Fixed Height Mode"),
                                                           P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
                                                           FALSE,
                                                           G_PARAM_READWRITE));

  /* Style properties */
#define _TREE_VIEW_EXPANDER_SIZE 10
#define _TREE_VIEW_VERTICAL_SEPARATOR 2
#define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
    
  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("expander_size",
							     P_("Expander Size"),
							     P_("Size of the expander arrow"),
							     0,
							     G_MAXINT,
							     _TREE_VIEW_EXPANDER_SIZE,
							     G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("vertical_separator",
							     P_("Vertical Separator Width"),
							     P_("Vertical space between cells.  Must be an even number"),
							     0,
							     G_MAXINT,
							     _TREE_VIEW_VERTICAL_SEPARATOR,
							     G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_int ("horizontal_separator",
							     P_("Horizontal Separator Width"),
							     P_("Horizontal space between cells.  Must be an even number"),
							     0,
							     G_MAXINT,
							     _TREE_VIEW_HORIZONTAL_SEPARATOR,
							     G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_boolean ("allow_rules",
								 P_("Allow Rules"),
								 P_("Allow drawing of alternating color rows"),
								 TRUE,
								 G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
					   g_param_spec_boolean ("indent_expanders",
								 P_("Indent Expanders"),
								 P_("Make the expanders indented"),
								 TRUE,
								 G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_boxed ("even_row_color",
                                                               P_("Even Row Color"),
                                                               P_("Color to use for even rows"),
							       GDK_TYPE_COLOR,
G_PARAM_READABLE));

  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_boxed ("odd_row_color",
                                                               P_("Odd Row Color"),
                                                               P_("Color to use for odd rows"),
							       GDK_TYPE_COLOR,
G_PARAM_READABLE));

  /* Signals */
  widget_class->set_scroll_adjustments_signal =
    g_signal_new ("set_scroll_adjustments",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
		  NULL, NULL,
		  _gtk_marshal_VOID__OBJECT_OBJECT,
		  G_TYPE_NONE, 2,
		  GTK_TYPE_ADJUSTMENT,
		  GTK_TYPE_ADJUSTMENT);

  tree_view_signals[ROW_ACTIVATED] =
    g_signal_new ("row_activated",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
		  NULL, NULL,
		  _gtk_marshal_VOID__BOXED_OBJECT,
		  G_TYPE_NONE, 2,
		  GTK_TYPE_TREE_PATH,
		  GTK_TYPE_TREE_VIEW_COLUMN);

  tree_view_signals[TEST_EXPAND_ROW] =
    g_signal_new ("test_expand_row",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
		  _gtk_boolean_handled_accumulator, NULL,
		  _gtk_marshal_BOOLEAN__BOXED_BOXED,
		  G_TYPE_BOOLEAN, 2,
		  GTK_TYPE_TREE_ITER,
		  GTK_TYPE_TREE_PATH);

  tree_view_signals[TEST_COLLAPSE_ROW] =
    g_signal_new ("test_collapse_row",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
		  _gtk_boolean_handled_accumulator, NULL,
		  _gtk_marshal_BOOLEAN__BOXED_BOXED,
		  G_TYPE_BOOLEAN, 2,
		  GTK_TYPE_TREE_ITER,
		  GTK_TYPE_TREE_PATH);

  tree_view_signals[ROW_EXPANDED] =
    g_signal_new ("row_expanded",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
		  NULL, NULL,
		  _gtk_marshal_VOID__BOXED_BOXED,
		  G_TYPE_NONE, 2,
		  GTK_TYPE_TREE_ITER,
		  GTK_TYPE_TREE_PATH);

  tree_view_signals[ROW_COLLAPSED] =
    g_signal_new ("row_collapsed",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
		  NULL, NULL,
		  _gtk_marshal_VOID__BOXED_BOXED,
		  G_TYPE_NONE, 2,
		  GTK_TYPE_TREE_ITER,
		  GTK_TYPE_TREE_PATH);

  tree_view_signals[COLUMNS_CHANGED] =
    g_signal_new ("columns_changed",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
		  NULL, NULL,
		  _gtk_marshal_NONE__NONE,
		  G_TYPE_NONE, 0);

  tree_view_signals[CURSOR_CHANGED] =
    g_signal_new ("cursor_changed",
		  G_TYPE_FROM_CLASS (o_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
		  NULL, NULL,
		  _gtk_marshal_NONE__NONE,
		  G_TYPE_NONE, 0);

  tree_view_signals[MOVE_CURSOR] =
    g_signal_new ("move_cursor",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__ENUM_INT,
		  G_TYPE_BOOLEAN, 2,
		  GTK_TYPE_MOVEMENT_STEP,
		  G_TYPE_INT);

  tree_view_signals[SELECT_ALL] =
    g_signal_new ("select_all",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__NONE,
		  G_TYPE_BOOLEAN, 0);

  tree_view_signals[UNSELECT_ALL] =
    g_signal_new ("unselect_all",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__NONE,
		  G_TYPE_BOOLEAN, 0);

  tree_view_signals[SELECT_CURSOR_ROW] =
    g_signal_new ("select_cursor_row",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__BOOLEAN,
		  G_TYPE_BOOLEAN, 1,
		  G_TYPE_BOOLEAN);

  tree_view_signals[TOGGLE_CURSOR_ROW] =
    g_signal_new ("toggle_cursor_row",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__NONE,
		  G_TYPE_BOOLEAN, 0);

  tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
    g_signal_new ("expand_collapse_cursor_row",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
		  G_TYPE_BOOLEAN, 3,
		  G_TYPE_BOOLEAN,
		  G_TYPE_BOOLEAN,
		  G_TYPE_BOOLEAN);

  tree_view_signals[SELECT_CURSOR_PARENT] =
    g_signal_new ("select_cursor_parent",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__NONE,
		  G_TYPE_BOOLEAN, 0);

  tree_view_signals[START_INTERACTIVE_SEARCH] =
    g_signal_new ("start_interactive_search",
		  G_TYPE_FROM_CLASS (object_class),
		  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
		  G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
		  NULL, NULL,
		  _gtk_marshal_BOOLEAN__NONE,
		  G_TYPE_BOOLEAN, 0);

  /* Key bindings */
  gtk_tree_view_add_move_binding (binding_set, GDK_Up, 0,
				  GTK_MOVEMENT_DISPLAY_LINES, -1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_Up, 0,
				  GTK_MOVEMENT_DISPLAY_LINES, -1);

  gtk_tree_view_add_move_binding (binding_set, GDK_Down, 0,
				  GTK_MOVEMENT_DISPLAY_LINES, 1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_Down, 0,
				  GTK_MOVEMENT_DISPLAY_LINES, 1);

  gtk_tree_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
				  GTK_MOVEMENT_DISPLAY_LINES, -1);

  gtk_tree_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
				  GTK_MOVEMENT_DISPLAY_LINES, 1);

  gtk_tree_view_add_move_binding (binding_set, GDK_Home, 0,
				  GTK_MOVEMENT_BUFFER_ENDS, -1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_Home, 0,
				  GTK_MOVEMENT_BUFFER_ENDS, -1);

  gtk_tree_view_add_move_binding (binding_set, GDK_End, 0,
				  GTK_MOVEMENT_BUFFER_ENDS, 1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_End, 0,
				  GTK_MOVEMENT_BUFFER_ENDS, 1);

  gtk_tree_view_add_move_binding (binding_set, GDK_Page_Up, 0,
				  GTK_MOVEMENT_PAGES, -1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0,
				  GTK_MOVEMENT_PAGES, -1);

  gtk_tree_view_add_move_binding (binding_set, GDK_Page_Down, 0,
				  GTK_MOVEMENT_PAGES, 1);
  gtk_tree_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0,
				  GTK_MOVEMENT_PAGES, 1);


  gtk_binding_entry_add_signal (binding_set, GDK_Right, 0, "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, 1);

  gtk_binding_entry_add_signal (binding_set, GDK_Left, 0, "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, -1);

  gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0, "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, 1);

  gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0, "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, -1);

  gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_CONTROL_MASK,
                                "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, 1);

  gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_CONTROL_MASK,
                                "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, -1);

  gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
                                "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, 1);

  gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
                                "move_cursor", 2,
				G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
				G_TYPE_INT, -1);

  gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_row", 0);

  gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0);
  gtk_binding_entry_add_signal (binding_set, GDK_slash, GDK_CONTROL_MASK, "select_all", 0);

  gtk_binding_entry_add_signal (binding_set, GDK_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0);
  gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_CONTROL_MASK, "unselect_all", 0);

  gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_SHIFT_MASK, "select_cursor_row", 1,
				G_TYPE_BOOLEAN, TRUE);

  gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "select_cursor_row", 1,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "select_cursor_row", 1,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "select_cursor_row", 1,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "select_cursor_row", 1,
				G_TYPE_BOOLEAN, TRUE);

  /* expand and collapse rows */
  gtk_binding_entry_add_signal (binding_set, GDK_plus, 0, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE);

  gtk_binding_entry_add_signal (binding_set, GDK_asterisk, 0,
                                "expand_collapse_cursor_row", 3,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Multiply, 0,
                                "expand_collapse_cursor_row", 3,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, TRUE);

  gtk_binding_entry_add_signal (binding_set, GDK_slash, 0,
                                "expand_collapse_cursor_row", 3,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, FALSE,
                                G_TYPE_BOOLEAN, FALSE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Divide, 0,
                                "expand_collapse_cursor_row", 3,
                                G_TYPE_BOOLEAN, TRUE,
                                G_TYPE_BOOLEAN, FALSE,
                                G_TYPE_BOOLEAN, FALSE);

  /* Not doable on US keyboards */
  gtk_binding_entry_add_signal (binding_set, GDK_plus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, 0, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Add, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_Right, GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_Right,
                                GDK_CONTROL_MASK | GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Right,
                                GDK_CONTROL_MASK | GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, TRUE);

  gtk_binding_entry_add_signal (binding_set, GDK_minus, 0, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE);
  gtk_binding_entry_add_signal (binding_set, GDK_minus, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, 0, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Subtract, GDK_SHIFT_MASK, "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, TRUE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_Left, GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_Left,
                                GDK_CONTROL_MASK | GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);
  gtk_binding_entry_add_signal (binding_set, GDK_KP_Left,
                                GDK_CONTROL_MASK | GDK_SHIFT_MASK,
                                "expand_collapse_cursor_row", 3,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, FALSE,
				G_TYPE_BOOLEAN, TRUE);

  gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0, "select_cursor_parent", 0);

  gtk_binding_entry_add_signal (binding_set, GDK_f, GDK_CONTROL_MASK, "start_interactive_search", 0);

  gtk_binding_entry_add_signal (binding_set, GDK_F, GDK_CONTROL_MASK, "start_interactive_search", 0);
}

static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
  tree_view->priv = g_new0 (GtkTreeViewPrivate, 1);
  GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);

  gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);

  tree_view->priv->flags =  GTK_TREE_VIEW_SHOW_EXPANDERS
                            | GTK_TREE_VIEW_DRAW_KEYFOCUS
                            | GTK_TREE_VIEW_HEADERS_VISIBLE;

  /* We need some padding */
  tree_view->priv->dy = 0;
  tree_view->priv->n_columns = 0;
  tree_view->priv->header_height = 1;
  tree_view->priv->x_drag = 0;
  tree_view->priv->drag_pos = -1;
  tree_view->priv->header_has_focus = FALSE;
  tree_view->priv->pressed_button = -1;
  tree_view->priv->press_start_x = -1;
  tree_view->priv->press_start_y = -1;
  tree_view->priv->reorderable = FALSE;
  tree_view->priv->presize_handler_timer = 0;
  tree_view->priv->scroll_sync_timer = 0;
  tree_view->priv->fixed_height = -1;
  tree_view->priv->fixed_height_mode = 0;
  tree_view->priv->fixed_height_check = 0;
  gtk_tree_view_set_adjustments (tree_view, NULL, NULL);