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gtktreeview.c
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gtktreeview.c
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/* 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 <math.h>
#include <string.h>
#include "gtktreeview.h"
#include "gtkrbtree.h"
#include "gtktreednd.h"
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtkmainprivate.h"
#include "gtkmarshalers.h"
#include "gtkbuildable.h"
#include "gtkbutton.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkvbox.h"
#include "gtkarrow.h"
#include "gtkintl.h"
#include "gtkbindings.h"
#include "gtkcontainer.h"
#include "gtkentry.h"
#include "gtkframe.h"
#include "gtktreemodelsort.h"
#include "gtktooltip.h"
#include "gtkscrollable.h"
#include "gtkcelllayout.h"
#include "gtkprivate.h"
#include "gtkwidgetprivate.h"
#include "gtkentryprivate.h"
#include "gtkstylecontextprivate.h"
#include "gtktypebuiltins.h"
#include "a11y/gtktreeviewaccessible.h"
/**
* SECTION:gtktreeview
* @Short_description: A widget for displaying both trees and lists
* @Title: GtkTreeView
* @See_also: #GtkTreeViewColumn, #GtkTreeSelection, #GtkTreeDnd, #GtkTreeMode,
* #GtkTreeSortable, #GtkTreeModelSort, #GtkListStore, #GtkTreeStore,
* #GtkCellRenderer, #GtkCellEditable, #GtkCellRendererPixbuf,
* #GtkCellRendererText, #GtkCellRendererToggle
*
* Widget that displays any object that implements the #GtkTreeModel interface.
*
* Please refer to the <link linkend="TreeWidget">tree widget conceptual
* overview</link> for an overview of all the objects and data types related
* to the tree widget and how they work together.
*
* Several different coordinate systems are exposed in the GtkTreeView API.
* These are:
*
* <inlinegraphic fileref="tree-view-coordinates.png" format="PNG"></inlinegraphic>
* <variablelist><title>Coordinate systems in GtkTreeView API</title>
* <varlistentry><term>Widget coordinates</term>
* <listitem>
* <para>
* Coordinates relative to the widget (usually <literal>widget->window</literal>).
* </para>
* </listitem>
* </varlistentry>
* <varlistentry><term>Bin window coordinates</term>
* <listitem>
* <para>
* Coordinates relative to the window that GtkTreeView renders to.
* </para>
* </listitem>
* </varlistentry>
* <varlistentry><term>Tree coordinates</term>
* <listitem>
* <para>
* Coordinates relative to the entire scrollable area of GtkTreeView. These
* coordinates start at (0, 0) for row 0 of the tree.
* </para>
* </listitem>
* </varlistentry>
* </variablelist>
*
* Several functions are available for converting between the different
* coordinate systems. The most common translations are between widget and bin
* window coordinates and between bin window and tree coordinates. For the
* former you can use gtk_tree_view_convert_widget_to_bin_window_coords()
* (and vice versa), for the latter gtk_tree_view_convert_bin_window_to_tree_coords()
* (and vice versa).
*
* <refsect2 id="GtkTreeView-BUILDER-UI">
* <title>GtkTreeView as GtkBuildable</title>
* The GtkTreeView implementation of the GtkBuildable interface accepts
* #GtkTreeViewColumn objects as <child> elements and exposes the
* internal #GtkTreeSelection in UI definitions.
* <example>
* <title>A UI definition fragment with GtkTreeView</title>
* <programlisting><![CDATA[
* <object class="GtkTreeView" id="treeview">
* <property name="model">liststore1</property>
* <child>
* <object class="GtkTreeViewColumn" id="test-column">
* <property name="title">Test</property>
* <child>
* <object class="GtkCellRendererText" id="test-renderer"/>
* <attributes>
* <attribute name="text">1</attribute>
* </attributes>
* </child>
* </object>
* </child>
* <child internal-child="selection">
* <object class="GtkTreeSelection" id="selection">
* <signal name="changed" handler="on_treeview_selection_changed"/>
* </object>
* </child>
* </object>
* ]]></programlisting>
* </example>
* </refsect2>
*/
enum
{
DRAG_COLUMN_WINDOW_STATE_UNSET = 0,
DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1,
DRAG_COLUMN_WINDOW_STATE_ARROW = 2,
DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3,
DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4
};
enum
{
RUBBER_BAND_OFF = 0,
RUBBER_BAND_MAYBE_START = 1,
RUBBER_BAND_ACTIVE = 2
};
/* This lovely little value is used to determine how far away from the title bar
* you can move the mouse and still have a column drag work.
*/
#define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*gtk_tree_view_get_effective_header_height(tree_view))
#ifdef __GNUC__
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"%s (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
G_STRLOC, \
G_STRFUNC, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"%s (%s): assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
G_STRLOC, \
G_STRFUNC, \
#expr); \
return; \
}; }G_STMT_END
#else
#define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion `%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return ret; \
}; }G_STMT_END
#define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \
if (!(expr)) \
{ \
g_log (G_LOG_DOMAIN, \
G_LOG_LEVEL_CRITICAL, \
"file %s: line %d: assertion '%s' failed.\n" \
"There is a disparity between the internal view of the GtkTreeView,\n" \
"and the GtkTreeModel. This generally means that the model has changed\n"\
"without letting the view know. Any display from now on is likely to\n" \
"be incorrect.\n", \
__FILE__, \
__LINE__, \
#expr); \
return; \
}; }G_STMT_END
#endif
#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_TIME_MS_PER_IDLE 30
#define SCROLL_EDGE_SIZE 15
#define EXPANDER_EXTRA_PADDING 4
#define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
#define AUTO_EXPAND_TIMEOUT 500
/* Translate from bin_window coordinates to rbtree (tree coordinates) and
* vice versa.
*/
#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)
typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder;
struct _GtkTreeViewColumnReorder
{
gint left_align;
gint right_align;
GtkTreeViewColumn *left_column;
GtkTreeViewColumn *right_column;
};
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 *_unused_source_target_list;
GdkDragAction source_actions;
GtkTargetList *_unused_dest_target_list;
guint source_set : 1;
guint dest_set : 1;
};
struct _GtkTreeViewPrivate
{
GtkTreeModel *model;
/* tree information */
GtkRBTree *tree;
/* Container info */
GList *children;
gint width;
gint height;
/* Adjustments */
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
gint min_display_width;
gint min_display_height;
/* Sub windows */
GdkWindow *bin_window;
GdkWindow *header_window;
/* Scroll position state keeping */
GtkTreeRowReference *top_row;
gint top_row_dy;
/* dy == y pos of top_row + top_row_dy */
/* we cache it for simplicity of the code */
gint dy;
guint presize_handler_timer;
guint validate_rows_timer;
guint scroll_sync_timer;
/* Indentation and expander layout */
gint expander_size;
GtkTreeViewColumn *expander_column;
gint level_indentation;
/* Key navigation (focus), selection */
gint cursor_offset;
GtkTreeRowReference *anchor;
GtkTreeRowReference *cursor;
GtkTreeViewColumn *focus_column;
/* Current pressed node, previously pressed, prelight */
GtkRBNode *button_pressed_node;
GtkRBTree *button_pressed_tree;
gint pressed_button;
gint press_start_x;
gint press_start_y;
gint event_last_x;
gint event_last_y;
guint last_button_time;
gint last_button_x;
gint last_button_y;
GtkRBNode *prelight_node;
GtkRBTree *prelight_tree;
/* Cell Editing */
GtkTreeViewColumn *edited_column;
/* The node that's currently being collapsed or expanded */
GtkRBNode *expanded_collapsed_node;
GtkRBTree *expanded_collapsed_tree;
guint expand_collapse_timeout;
/* Auto expand/collapse timeout in hover mode */
guint auto_expand_timeout;
/* Selection information */
GtkTreeSelection *selection;
/* Header information */
gint n_columns;
GList *columns;
gint header_height;
GtkTreeViewColumnDropFunc column_drop_func;
gpointer column_drop_func_data;
GDestroyNotify column_drop_func_data_destroy;
GList *column_drag_info;
GtkTreeViewColumnReorder *cur_reorder;
gint prev_width_before_expander;
/* Interactive Header reordering */
GdkWindow *drag_window;
GdkWindow *drag_highlight_window;
GtkTreeViewColumn *drag_column;
gint drag_column_x;
/* Interactive Header Resizing */
gint drag_pos;
gint x_drag;
/* Non-interactive Header Resizing, expand flag support */
gint prev_width;
gint last_extra_space;
gint last_extra_space_per_column;
gint last_number_of_expand_columns;
/* ATK Hack */
GtkTreeDestroyCountFunc destroy_count_func;
gpointer destroy_count_data;
GDestroyNotify destroy_count_destroy;
/* Scroll timeout (e.g. during dnd, rubber banding) */
guint scroll_timeout;
/* Row drag-and-drop */
GtkTreeRowReference *drag_dest_row;
GtkTreeViewDropPosition drag_dest_pos;
guint open_dest_timeout;
/* Rubber banding */
gint rubber_band_status;
gint rubber_band_x;
gint rubber_band_y;
gint rubber_band_shift;
gint rubber_band_ctrl;
GtkRBNode *rubber_band_start_node;
GtkRBTree *rubber_band_start_tree;
GtkRBNode *rubber_band_end_node;
GtkRBTree *rubber_band_end_tree;
/* fixed height */
gint fixed_height;
/* Scroll-to functionality when unrealized */
GtkTreeRowReference *scroll_to_path;
GtkTreeViewColumn *scroll_to_column;
gfloat scroll_to_row_align;
gfloat scroll_to_col_align;
/* Interactive search */
gint selected_iter;
gint search_column;
GtkTreeViewSearchPositionFunc search_position_func;
GtkTreeViewSearchEqualFunc search_equal_func;
gpointer search_user_data;
GDestroyNotify search_destroy;
gpointer search_position_user_data;
GDestroyNotify search_position_destroy;
GtkWidget *search_window;
GtkWidget *search_entry;
gulong search_entry_changed_id;
guint typeselect_flush_timeout;
/* Grid and tree lines */
GtkTreeViewGridLines grid_lines;
double grid_line_dashes[2];
int grid_line_width;
gboolean tree_lines_enabled;
double tree_line_dashes[2];
int tree_line_width;
/* Row separators */
GtkTreeViewRowSeparatorFunc row_separator_func;
gpointer row_separator_data;
GDestroyNotify row_separator_destroy;
/* Tooltip support */
gint tooltip_column;
/* Here comes the bitfield */
guint scroll_to_use_align : 1;
guint fixed_height_mode : 1;
guint fixed_height_check : 1;
guint reorderable : 1;
guint header_has_focus : 1;
guint drag_column_window_state : 3;
/* hint to display rows in alternating colors */
guint has_rules : 1;
guint mark_rows_col_dirty : 1;
/* for DnD */
guint empty_view_drop : 1;
guint ctrl_pressed : 1;
guint shift_pressed : 1;
guint init_hadjust_value : 1;
guint in_top_row_to_dy : 1;
/* interactive search */
guint enable_search : 1;
guint disable_popdown : 1;
guint search_custom_entry_set : 1;
guint hover_selection : 1;
guint hover_expand : 1;
guint imcontext_changed : 1;
guint rubber_banding_enable : 1;
guint in_grab : 1;
guint post_validation_flag : 1;
/* Whether our key press handler is to avoid sending an unhandled binding to the search entry */
guint search_entry_avoid_unhandled_binding : 1;
/* GtkScrollablePolicy needs to be checked when
* driving the scrollable adjustment values */
guint hscroll_policy : 1;
guint vscroll_policy : 1;
/* GtkTreeView flags */
guint is_list : 1;
guint show_expanders : 1;
guint in_column_resize : 1;
guint arrow_prelit : 1;
guint headers_visible : 1;
guint draw_keyfocus : 1;
guint model_setup : 1;
guint in_column_drag : 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_HSCROLL_POLICY,
PROP_VSCROLL_POLICY,
PROP_HEADERS_VISIBLE,
PROP_HEADERS_CLICKABLE,
PROP_EXPANDER_COLUMN,
PROP_REORDERABLE,
PROP_RULES_HINT,
PROP_ENABLE_SEARCH,
PROP_SEARCH_COLUMN,
PROP_FIXED_HEIGHT_MODE,
PROP_HOVER_SELECTION,
PROP_HOVER_EXPAND,
PROP_SHOW_EXPANDERS,
PROP_LEVEL_INDENTATION,
PROP_RUBBER_BANDING,
PROP_ENABLE_GRID_LINES,
PROP_ENABLE_TREE_LINES,
PROP_TOOLTIP_COLUMN
};
/* 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);
/* gtkwidget signals */
static void gtk_tree_view_destroy (GtkWidget *widget);
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_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural);
static void gtk_tree_view_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural);
static void gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition,
gboolean may_validate);
static void gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_tree_view_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gtk_tree_view_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_tree_view_key_release (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 gboolean gtk_tree_view_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event);
#if 0
static gboolean gtk_tree_view_configure (GtkWidget *widget,
GdkEventConfigure *event);
#endif
static GtkWidgetPath * gtk_tree_view_get_path_for_child (GtkContainer *container,
GtkWidget *child);
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_updated (GtkWidget *widget);
static void gtk_tree_view_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_tree_view_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state);
/* 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_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
static void gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
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 do_validate_rows (GtkTreeView *tree_view,
gboolean size_request);
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_set_top_row (GtkTreeView *tree_view,
GtkTreePath *path,
gint offset);
static void gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
static void gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
static void invalidate_empty_focus (GtkTreeView *tree_view);
/* Internal functions */
static gboolean gtk_tree_view_is_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column);
static inline gboolean gtk_tree_view_draw_expanders (GtkTreeView *tree_view);
static void gtk_tree_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
gboolean add_shifted_binding,
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,
const GdkRectangle *clip_rect);
static void gtk_tree_view_queue_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
cairo_t *cr,
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 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,
gboolean focus_to_cell);
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_can_focus_cell (GtkTreeView *tree_view);
static void column_sizing_notify (GObject *object,
GParamSpec *pspec,
gpointer data);
static void gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view);
static void update_prelight (GtkTreeView *tree_view,
int x,
int y);
static inline gint gtk_tree_view_get_effective_header_height (GtkTreeView *tree_view);
static inline gint gtk_tree_view_get_cell_area_y_offset (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gint vertical_separator);
static inline gint gtk_tree_view_get_cell_area_height (GtkTreeView *tree_view,
GtkRBNode *node,
gint vertical_separator);
static inline gint gtk_tree_view_get_row_y_offset (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static inline gint gtk_tree_view_get_row_height (GtkTreeView *tree_view,
GtkRBNode *node);
/* interactive search */
static void gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
static void gtk_tree_view_search_dialog_hide (GtkWidget *search_dialog,
GtkTreeView *tree_view,
GdkDevice *device);
static void gtk_tree_view_search_position_func (GtkTreeView *tree_view,
GtkWidget *search_dialog,
gpointer user_data);
static void gtk_tree_view_search_disable_popdown (GtkEntry *entry,
GtkMenu *menu,
gpointer data);
static void gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
GtkTreeView *tree_view);
static void gtk_tree_view_search_activate (GtkEntry *entry,
GtkTreeView *tree_view);
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_scroll_event (GtkWidget *entry,
GdkEventScroll *event,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_key_press_event (GtkWidget *entry,
GdkEventKey *event,
GtkTreeView *tree_view);
static gboolean 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,
gboolean edit_only);
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,
GdkDevice *device,
gboolean keybinding);
static gboolean gtk_tree_view_start_interactive_search (GtkTreeView *tree_view);
static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint drop_position);
/* GtkBuildable */
static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static GObject *gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname);
static void gtk_tree_view_buildable_init (GtkBuildableIface *iface);
static gboolean scroll_row_timeout (gpointer data);
static void add_scroll_timeout (GtkTreeView *tree_view);
static void remove_scroll_timeout (GtkTreeView *tree_view);
static guint tree_view_signals [LAST_SIGNAL] = { 0 };
/* GType Methods
*/
G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_tree_view_buildable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
GObjectClass *o_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkBindingSet *binding_set;
binding_set = gtk_binding_set_by_class (class);
o_class = (GObjectClass *) 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;
/* GtkWidget signals */
widget_class->destroy = gtk_tree_view_destroy;
widget_class->map = gtk_tree_view_map;
widget_class->realize = gtk_tree_view_realize;
widget_class->unrealize = gtk_tree_view_unrealize;
widget_class->get_preferred_width = gtk_tree_view_get_preferred_width;
widget_class->get_preferred_height = gtk_tree_view_get_preferred_height;
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->grab_broken_event = gtk_tree_view_grab_broken;
/*widget_class->configure_event = gtk_tree_view_configure;*/
widget_class->motion_notify_event = gtk_tree_view_motion;
widget_class->draw = gtk_tree_view_draw;
widget_class->key_press_event = gtk_tree_view_key_press;
widget_class->key_release_event = gtk_tree_view_key_release;
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_updated = gtk_tree_view_style_updated;
widget_class->grab_notify = gtk_tree_view_grab_notify;
widget_class->state_flags_changed = gtk_tree_view_state_flags_changed;
/* 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;
container_class->get_path_for_child = gtk_tree_view_get_path_for_child;
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_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,
GTK_PARAM_READWRITE));
g_object_class_override_property (o_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property (o_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property (o_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property (o_class, PROP_VSCROLL_POLICY, "vscroll-policy");
g_object_class_install_property (o_class,
PROP_HEADERS_VISIBLE,
g_param_spec_boolean ("headers-visible",
P_("Headers Visible"),
P_("Show the column header buttons"),
TRUE,