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gtk2/gtk/gtktreeviewcolumn.c
Matthias Clasen 3ed729e1d7 treeviewcolumn: Add a summary
2021-03-11 16:37:37 +00:00

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/* gtktreeviewcolumn.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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtktreeviewcolumn.h"
#include "gtkbox.h"
#include "gtkbutton.h"
#include "gtkcellareabox.h"
#include "gtkcellareacontext.h"
#include "gtkcelllayout.h"
#include "gtkdragsourceprivate.h"
#include "gtkframe.h"
#include "gtkimage.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtktreeprivate.h"
#include "gtktreeview.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkgesturedrag.h"
#include "gtkeventcontrollerfocus.h"
#include "gtkeventcontrollerkey.h"
#include "gtkbuiltiniconprivate.h"
#include <string.h>
/**
* GtkTreeViewColumn:
*
* A visible column in a GtkTreeView widget
*
* The GtkTreeViewColumn object represents a visible column in a #GtkTreeView widget.
* It allows to set properties of the column header, and functions as a holding pen
* for the cell renderers which determine how the data in the column is displayed.
*
* Please refer to the [tree widget conceptual overview][TreeWidget]
* for an overview of all the objects and data types related to the tree widget and
* how they work together, and to the #GtkTreeView documentation for specifics about
* the CSS node structure for treeviews and their headers.
*/
/* Type methods */
static void gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface);
/* GObject methods */
static void gtk_tree_view_column_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_tree_view_column_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_tree_view_column_finalize (GObject *object);
static void gtk_tree_view_column_dispose (GObject *object);
static void gtk_tree_view_column_constructed (GObject *object);
/* GtkCellLayout implementation */
static void gtk_tree_view_column_ensure_cell_area (GtkTreeViewColumn *column,
GtkCellArea *cell_area);
static GtkCellArea *gtk_tree_view_column_cell_layout_get_area (GtkCellLayout *cell_layout);
/* Button handling code */
static void gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column);
static void gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column);
/* Button signal handlers */
static void column_button_drag_begin (GtkGestureDrag *gesture,
double x,
double y,
GtkTreeViewColumn *column);
static void column_button_drag_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkTreeViewColumn *column);
static void gtk_tree_view_column_button_clicked (GtkWidget *widget,
gpointer data);
static gboolean gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling,
gpointer data);
/* Property handlers */
static void gtk_tree_view_model_sort_column_changed (GtkTreeSortable *sortable,
GtkTreeViewColumn *tree_column);
/* GtkCellArea/GtkCellAreaContext callbacks */
static void gtk_tree_view_column_context_changed (GtkCellAreaContext *context,
GParamSpec *pspec,
GtkTreeViewColumn *tree_column);
static void gtk_tree_view_column_add_editable_callback (GtkCellArea *area,
GtkCellRenderer *renderer,
GtkCellEditable *edit_widget,
GdkRectangle *cell_area,
const char *path_string,
gpointer user_data);
static void gtk_tree_view_column_remove_editable_callback (GtkCellArea *area,
GtkCellRenderer *renderer,
GtkCellEditable *edit_widget,
gpointer user_data);
/* Internal functions */
static void gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
gpointer data);
static void gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column);
static void gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
va_list args);
/* GtkBuildable implementation */
static void gtk_tree_view_column_buildable_init (GtkBuildableIface *iface);
typedef struct _GtkTreeViewColumnClass GtkTreeViewColumnClass;
typedef struct _GtkTreeViewColumnPrivate GtkTreeViewColumnPrivate;
struct _GtkTreeViewColumn
{
GInitiallyUnowned parent_instance;
GtkTreeViewColumnPrivate *priv;
};
struct _GtkTreeViewColumnClass
{
GInitiallyUnownedClass parent_class;
void (*clicked) (GtkTreeViewColumn *tree_column);
};
struct _GtkTreeViewColumnPrivate
{
GtkWidget *tree_view;
GtkWidget *button;
GtkWidget *child;
GtkWidget *arrow;
GtkWidget *frame;
gulong property_changed_signal;
float xalign;
/* Sizing fields */
/* see gtk+/doc/tree-column-sizing.txt for more information on them */
GtkTreeViewColumnSizing column_type;
int padding;
int x_offset;
int width;
int fixed_width;
int min_width;
int max_width;
/* dragging columns */
int drag_x;
int drag_y;
char *title;
/* Sorting */
gulong sort_clicked_signal;
gulong sort_column_changed_signal;
int sort_column_id;
GtkSortType sort_order;
/* Cell area */
GtkCellArea *cell_area;
GtkCellAreaContext *cell_area_context;
gulong add_editable_signal;
gulong remove_editable_signal;
gulong context_changed_signal;
/* Flags */
guint visible : 1;
guint resizable : 1;
guint clickable : 1;
guint dirty : 1;
guint show_sort_indicator : 1;
guint maybe_reordered : 1;
guint reorderable : 1;
guint expand : 1;
};
enum
{
PROP_0,
PROP_VISIBLE,
PROP_RESIZABLE,
PROP_X_OFFSET,
PROP_WIDTH,
PROP_SPACING,
PROP_SIZING,
PROP_FIXED_WIDTH,
PROP_MIN_WIDTH,
PROP_MAX_WIDTH,
PROP_TITLE,
PROP_EXPAND,
PROP_CLICKABLE,
PROP_WIDGET,
PROP_ALIGNMENT,
PROP_REORDERABLE,
PROP_SORT_INDICATOR,
PROP_SORT_ORDER,
PROP_SORT_COLUMN_ID,
PROP_CELL_AREA,
LAST_PROP
};
enum
{
CLICKED,
LAST_SIGNAL
};
static guint tree_column_signals[LAST_SIGNAL] = { 0 };
static GParamSpec *tree_column_props[LAST_PROP] = { NULL, };
G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
G_ADD_PRIVATE (GtkTreeViewColumn)
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_tree_view_column_cell_layout_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_tree_view_column_buildable_init))
static void
gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass*) class;
class->clicked = NULL;
object_class->constructed = gtk_tree_view_column_constructed;
object_class->finalize = gtk_tree_view_column_finalize;
object_class->dispose = gtk_tree_view_column_dispose;
object_class->set_property = gtk_tree_view_column_set_property;
object_class->get_property = gtk_tree_view_column_get_property;
/**
* GtkTreeViewColumn::clicked:
* @column: the #GtkTreeViewColumn that emitted the signal
*
* Emitted when the column's header has been clicked.
*/
tree_column_signals[CLICKED] =
g_signal_new (I_("clicked"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
tree_column_props[PROP_VISIBLE] =
g_param_spec_boolean ("visible",
P_("Visible"),
P_("Whether to display the column"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_RESIZABLE] =
g_param_spec_boolean ("resizable",
P_("Resizable"),
P_("Column is user-resizable"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_X_OFFSET] =
g_param_spec_int ("x-offset",
P_("X position"),
P_("Current X position of the column"),
-G_MAXINT, G_MAXINT,
0,
GTK_PARAM_READABLE);
tree_column_props[PROP_WIDTH] =
g_param_spec_int ("width",
P_("Width"),
P_("Current width of the column"),
0, G_MAXINT,
0,
GTK_PARAM_READABLE);
tree_column_props[PROP_SPACING] =
g_param_spec_int ("spacing",
P_("Spacing"),
P_("Space which is inserted between cells"),
0, G_MAXINT,
0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_SIZING] =
g_param_spec_enum ("sizing",
P_("Sizing"),
P_("Resize mode of the column"),
GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
GTK_TREE_VIEW_COLUMN_GROW_ONLY,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_FIXED_WIDTH] =
g_param_spec_int ("fixed-width",
P_("Fixed Width"),
P_("Current fixed width of the column"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_MIN_WIDTH] =
g_param_spec_int ("min-width",
P_("Minimum Width"),
P_("Minimum allowed width of the column"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_MAX_WIDTH] =
g_param_spec_int ("max-width",
P_("Maximum Width"),
P_("Maximum allowed width of the column"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_TITLE] =
g_param_spec_string ("title",
P_("Title"),
P_("Title to appear in column header"),
"",
GTK_PARAM_READWRITE);
tree_column_props[PROP_EXPAND] =
g_param_spec_boolean ("expand",
P_("Expand"),
P_("Column gets share of extra width allocated to the widget"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_CLICKABLE] =
g_param_spec_boolean ("clickable",
P_("Clickable"),
P_("Whether the header can be clicked"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_WIDGET] =
g_param_spec_object ("widget",
P_("Widget"),
P_("Widget to put in column header button instead of column title"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE);
tree_column_props[PROP_ALIGNMENT] =
g_param_spec_float ("alignment",
P_("Alignment"),
P_("X Alignment of the column header text or widget"),
0.0, 1.0, 0.0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_REORDERABLE] =
g_param_spec_boolean ("reorderable",
P_("Reorderable"),
P_("Whether the column can be reordered around the headers"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_SORT_INDICATOR] =
g_param_spec_boolean ("sort-indicator",
P_("Sort indicator"),
P_("Whether to show a sort indicator"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
tree_column_props[PROP_SORT_ORDER] =
g_param_spec_enum ("sort-order",
P_("Sort order"),
P_("Sort direction the sort indicator should indicate"),
GTK_TYPE_SORT_TYPE,
GTK_SORT_ASCENDING,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeViewColumn:sort-column-id:
*
* Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
* clickable. Set to -1 to make the column unsortable.
**/
tree_column_props[PROP_SORT_COLUMN_ID] =
g_param_spec_int ("sort-column-id",
P_("Sort column ID"),
P_("Logical sort column ID this column sorts on when selected for sorting"),
-1, G_MAXINT,
-1,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeViewColumn:cell-area:
*
* The #GtkCellArea used to layout cell renderers for this column.
*
* If no area is specified when creating the tree view column with gtk_tree_view_column_new_with_area()
* a horizontally oriented #GtkCellAreaBox will be used.
*/
tree_column_props[PROP_CELL_AREA] =
g_param_spec_object ("cell-area",
P_("Cell Area"),
P_("The GtkCellArea used to layout cells"),
GTK_TYPE_CELL_AREA,
GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_properties (object_class, LAST_PROP, tree_column_props);
}
static void
gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *tagname,
gpointer data)
{
/* Just ignore the boolean return from here */
_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
}
static void
gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
{
iface->add_child = _gtk_cell_layout_buildable_add_child;
iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
}
static void
gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->get_area = gtk_tree_view_column_cell_layout_get_area;
}
static void
gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv;
tree_column->priv = gtk_tree_view_column_get_instance_private (tree_column);
priv = tree_column->priv;
priv->button = NULL;
priv->xalign = 0.0;
priv->width = 0;
priv->padding = 0;
priv->min_width = -1;
priv->max_width = -1;
priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
priv->visible = TRUE;
priv->resizable = FALSE;
priv->expand = FALSE;
priv->clickable = FALSE;
priv->dirty = TRUE;
priv->sort_order = GTK_SORT_ASCENDING;
priv->show_sort_indicator = FALSE;
priv->property_changed_signal = 0;
priv->sort_clicked_signal = 0;
priv->sort_column_changed_signal = 0;
priv->sort_column_id = -1;
priv->reorderable = FALSE;
priv->maybe_reordered = FALSE;
priv->fixed_width = -1;
priv->title = g_strdup ("");
gtk_tree_view_column_create_button (tree_column);
}
static void
gtk_tree_view_column_constructed (GObject *object)
{
GtkTreeViewColumn *tree_column = GTK_TREE_VIEW_COLUMN (object);
G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructed (object);
gtk_tree_view_column_ensure_cell_area (tree_column, NULL);
}
static void
gtk_tree_view_column_dispose (GObject *object)
{
GtkTreeViewColumn *tree_column = (GtkTreeViewColumn *) object;
GtkTreeViewColumnPrivate *priv = tree_column->priv;
/* Remove this column from its treeview,
* in case this column is destroyed before its treeview.
*/
if (priv->tree_view)
gtk_tree_view_remove_column (GTK_TREE_VIEW (priv->tree_view), tree_column);
if (priv->cell_area_context)
{
g_signal_handler_disconnect (priv->cell_area_context,
priv->context_changed_signal);
g_object_unref (priv->cell_area_context);
priv->cell_area_context = NULL;
priv->context_changed_signal = 0;
}
if (priv->cell_area)
{
g_signal_handler_disconnect (priv->cell_area,
priv->add_editable_signal);
g_signal_handler_disconnect (priv->cell_area,
priv->remove_editable_signal);
g_object_unref (priv->cell_area);
priv->cell_area = NULL;
priv->add_editable_signal = 0;
priv->remove_editable_signal = 0;
}
if (priv->child)
{
g_object_unref (priv->child);
priv->child = NULL;
}
g_clear_object (&priv->button);
G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
}
static void
gtk_tree_view_column_finalize (GObject *object)
{
GtkTreeViewColumn *tree_column = (GtkTreeViewColumn *) object;
GtkTreeViewColumnPrivate *priv = tree_column->priv;
g_free (priv->title);
G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
}
static void
gtk_tree_view_column_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkTreeViewColumn *tree_column;
GtkCellArea *area;
tree_column = GTK_TREE_VIEW_COLUMN (object);
switch (prop_id)
{
case PROP_VISIBLE:
gtk_tree_view_column_set_visible (tree_column,
g_value_get_boolean (value));
break;
case PROP_RESIZABLE:
gtk_tree_view_column_set_resizable (tree_column,
g_value_get_boolean (value));
break;
case PROP_SIZING:
gtk_tree_view_column_set_sizing (tree_column,
g_value_get_enum (value));
break;
case PROP_FIXED_WIDTH:
gtk_tree_view_column_set_fixed_width (tree_column,
g_value_get_int (value));
break;
case PROP_MIN_WIDTH:
gtk_tree_view_column_set_min_width (tree_column,
g_value_get_int (value));
break;
case PROP_MAX_WIDTH:
gtk_tree_view_column_set_max_width (tree_column,
g_value_get_int (value));
break;
case PROP_SPACING:
gtk_tree_view_column_set_spacing (tree_column,
g_value_get_int (value));
break;
case PROP_TITLE:
gtk_tree_view_column_set_title (tree_column,
g_value_get_string (value));
break;
case PROP_EXPAND:
gtk_tree_view_column_set_expand (tree_column,
g_value_get_boolean (value));
break;
case PROP_CLICKABLE:
gtk_tree_view_column_set_clickable (tree_column,
g_value_get_boolean (value));
break;
case PROP_WIDGET:
gtk_tree_view_column_set_widget (tree_column,
(GtkWidget*) g_value_get_object (value));
break;
case PROP_ALIGNMENT:
gtk_tree_view_column_set_alignment (tree_column,
g_value_get_float (value));
break;
case PROP_REORDERABLE:
gtk_tree_view_column_set_reorderable (tree_column,
g_value_get_boolean (value));
break;
case PROP_SORT_INDICATOR:
gtk_tree_view_column_set_sort_indicator (tree_column,
g_value_get_boolean (value));
break;
case PROP_SORT_ORDER:
gtk_tree_view_column_set_sort_order (tree_column,
g_value_get_enum (value));
break;
case PROP_SORT_COLUMN_ID:
gtk_tree_view_column_set_sort_column_id (tree_column,
g_value_get_int (value));
break;
case PROP_CELL_AREA:
/* Construct-only, can only be assigned once */
area = g_value_get_object (value);
if (area)
{
if (tree_column->priv->cell_area != NULL)
{
g_warning ("cell-area has already been set, ignoring construct property");
g_object_ref_sink (area);
g_object_unref (area);
}
else
gtk_tree_view_column_ensure_cell_area (tree_column, area);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tree_view_column_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTreeViewColumn *tree_column;
tree_column = GTK_TREE_VIEW_COLUMN (object);
switch (prop_id)
{
case PROP_VISIBLE:
g_value_set_boolean (value,
gtk_tree_view_column_get_visible (tree_column));
break;
case PROP_RESIZABLE:
g_value_set_boolean (value,
gtk_tree_view_column_get_resizable (tree_column));
break;
case PROP_X_OFFSET:
g_value_set_int (value,
gtk_tree_view_column_get_x_offset (tree_column));
break;
case PROP_WIDTH:
g_value_set_int (value,
gtk_tree_view_column_get_width (tree_column));
break;
case PROP_SPACING:
g_value_set_int (value,
gtk_tree_view_column_get_spacing (tree_column));
break;
case PROP_SIZING:
g_value_set_enum (value,
gtk_tree_view_column_get_sizing (tree_column));
break;
case PROP_FIXED_WIDTH:
g_value_set_int (value,
gtk_tree_view_column_get_fixed_width (tree_column));
break;
case PROP_MIN_WIDTH:
g_value_set_int (value,
gtk_tree_view_column_get_min_width (tree_column));
break;
case PROP_MAX_WIDTH:
g_value_set_int (value,
gtk_tree_view_column_get_max_width (tree_column));
break;
case PROP_TITLE:
g_value_set_string (value,
gtk_tree_view_column_get_title (tree_column));
break;
case PROP_EXPAND:
g_value_set_boolean (value,
gtk_tree_view_column_get_expand (tree_column));
break;
case PROP_CLICKABLE:
g_value_set_boolean (value,
gtk_tree_view_column_get_clickable (tree_column));
break;
case PROP_WIDGET:
g_value_set_object (value,
(GObject*) gtk_tree_view_column_get_widget (tree_column));
break;
case PROP_ALIGNMENT:
g_value_set_float (value,
gtk_tree_view_column_get_alignment (tree_column));
break;
case PROP_REORDERABLE:
g_value_set_boolean (value,
gtk_tree_view_column_get_reorderable (tree_column));
break;
case PROP_SORT_INDICATOR:
g_value_set_boolean (value,
gtk_tree_view_column_get_sort_indicator (tree_column));
break;
case PROP_SORT_ORDER:
g_value_set_enum (value,
gtk_tree_view_column_get_sort_order (tree_column));
break;
case PROP_SORT_COLUMN_ID:
g_value_set_int (value,
gtk_tree_view_column_get_sort_column_id (tree_column));
break;
case PROP_CELL_AREA:
g_value_set_object (value, tree_column->priv->cell_area);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Implementation of GtkCellLayout interface
*/
static void
gtk_tree_view_column_ensure_cell_area (GtkTreeViewColumn *column,
GtkCellArea *cell_area)
{
GtkTreeViewColumnPrivate *priv = column->priv;
if (priv->cell_area)
return;
if (cell_area)
priv->cell_area = cell_area;
else
priv->cell_area = gtk_cell_area_box_new ();
g_object_ref_sink (priv->cell_area);
priv->add_editable_signal =
g_signal_connect (priv->cell_area, "add-editable",
G_CALLBACK (gtk_tree_view_column_add_editable_callback),
column);
priv->remove_editable_signal =
g_signal_connect (priv->cell_area, "remove-editable",
G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
column);
priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
priv->context_changed_signal =
g_signal_connect (priv->cell_area_context, "notify",
G_CALLBACK (gtk_tree_view_column_context_changed),
column);
}
static GtkCellArea *
gtk_tree_view_column_cell_layout_get_area (GtkCellLayout *cell_layout)
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (cell_layout);
GtkTreeViewColumnPrivate *priv = column->priv;
if (G_UNLIKELY (!priv->cell_area))
gtk_tree_view_column_ensure_cell_area (column, NULL);
return priv->cell_area;
}
static void
focus_in (GtkEventControllerKey *controller,
GtkTreeViewColumn *column)
{
_gtk_tree_view_set_focus_column (GTK_TREE_VIEW (column->priv->tree_view), column);
}
/* Button handling code
*/
static void
gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
GtkEventController *controller;
GtkWidget *child;
GtkWidget *hbox;
g_return_if_fail (priv->button == NULL);
priv->button = gtk_button_new ();
g_object_ref_sink (priv->button);
gtk_widget_set_focus_on_click (priv->button, FALSE);
g_signal_connect (priv->button, "clicked",
G_CALLBACK (gtk_tree_view_column_button_clicked),
tree_column);
controller = GTK_EVENT_CONTROLLER (gtk_gesture_drag_new ());
g_signal_connect (controller, "drag-begin",
G_CALLBACK (column_button_drag_begin), tree_column);
g_signal_connect (controller, "drag-update",
G_CALLBACK (column_button_drag_update), tree_column);
gtk_event_controller_set_propagation_phase (controller, GTK_PHASE_CAPTURE);
gtk_widget_add_controller (priv->button, controller);
controller = gtk_event_controller_focus_new ();
g_signal_connect (controller, "enter", G_CALLBACK (focus_in), tree_column);
gtk_widget_add_controller (priv->button, controller);
priv->frame = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_set_hexpand (priv->frame, TRUE);
gtk_widget_set_halign (priv->frame, GTK_ALIGN_START);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
priv->arrow = gtk_builtin_icon_new ("sort-indicator");
if (priv->child)
child = priv->child;
else
child = gtk_label_new (priv->title);
g_signal_connect (child, "mnemonic-activate",
G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
tree_column);
if (priv->xalign <= 0.5)
{
gtk_box_append (GTK_BOX (hbox), priv->frame);
gtk_box_append (GTK_BOX (hbox), priv->arrow);
}
else
{
gtk_box_append (GTK_BOX (hbox), priv->arrow);
gtk_box_append (GTK_BOX (hbox), priv->frame);
}
gtk_box_append (GTK_BOX (priv->frame), child);
gtk_button_set_child (GTK_BUTTON (priv->button), hbox);
}
static void
gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
int sort_column_id = -1;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *arrow;
GtkWidget *current_child;
GtkTreeModel *model;
if (priv->tree_view)
model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
else
model = NULL;
hbox = gtk_button_get_child (GTK_BUTTON (priv->button));
frame = priv->frame;
arrow = priv->arrow;
current_child = gtk_widget_get_first_child (frame);
/* Set up the actual button */
if (priv->child)
{
if (current_child != priv->child)
{
gtk_box_remove (GTK_BOX (frame), current_child);
gtk_box_append (GTK_BOX (frame), priv->child);
}
}
else
{
if (current_child == NULL)
{
current_child = gtk_label_new (NULL);
gtk_widget_show (current_child);
gtk_box_append (GTK_BOX (frame), current_child);
}
g_return_if_fail (GTK_IS_LABEL (current_child));
if (priv->title)
gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
priv->title);
else
gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
"");
}
if (GTK_IS_TREE_SORTABLE (model))
gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
&sort_column_id,
NULL);
if (priv->show_sort_indicator)
{
gboolean alternative;
if (priv->tree_view)
g_object_get (gtk_widget_get_settings (priv->tree_view),
"gtk-alternative-sort-arrows", &alternative,
NULL);
else
alternative = FALSE;
if ((!alternative && priv->sort_order == GTK_SORT_ASCENDING) ||
(alternative && priv->sort_order == GTK_SORT_DESCENDING))
{
gtk_widget_remove_css_class (arrow, "descending");
gtk_widget_add_css_class (arrow, "ascending");
}
else
{
gtk_widget_remove_css_class (arrow, "ascending");
gtk_widget_add_css_class (arrow, "descending");
}
}
/* Put arrow on the right if the text is left-or-center justified, and on the
* left otherwise; do this by packing boxes, so flipping text direction will
* reverse things
*/
if (priv->xalign <= 0.5)
gtk_box_reorder_child_after (GTK_BOX (hbox), arrow, gtk_widget_get_last_child (hbox));
else
gtk_box_reorder_child_after (GTK_BOX (hbox), arrow, NULL);
if (priv->show_sort_indicator
|| (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
gtk_widget_show (arrow);
else
gtk_widget_hide (arrow);
if (priv->show_sort_indicator)
gtk_widget_set_opacity (arrow, 1.0);
else
gtk_widget_set_opacity (arrow, 0.0);
/* It's always safe to hide the button. It isn't always safe to show it, as
* if you show it before it's realized, it'll get the wrong window. */
if (priv->tree_view != NULL &&
gtk_widget_get_realized (priv->tree_view))
{
if (priv->visible &&
gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
{
gtk_widget_show (priv->button);
}
else
{
gtk_widget_hide (priv->button);
}
}
if (priv->reorderable || priv->clickable)
{
gtk_widget_set_focusable (priv->button, TRUE);
}
else
{
gtk_widget_set_focusable (priv->button, FALSE);
if (gtk_widget_has_focus (priv->button))
{
GtkRoot *root = gtk_widget_get_root (priv->tree_view);
gtk_root_set_focus (root, NULL);
}
}
/* Queue a resize on the assumption that we always want to catch all changes
* and columns don't change all that often.
*/
if (priv->tree_view && gtk_widget_get_realized (priv->tree_view))
gtk_widget_queue_resize (priv->tree_view);
}
/* Button signal handlers
*/
static void
column_button_drag_begin (GtkGestureDrag *gesture,
double x,
double y,
GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
if (!priv->reorderable)
{
gtk_gesture_set_state (GTK_GESTURE (gesture),
GTK_EVENT_SEQUENCE_DENIED);
return;
}
priv->drag_x = x;
priv->drag_y = y;
gtk_widget_grab_focus (priv->button);
}
static void
column_button_drag_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
if (gtk_drag_check_threshold_double (priv->button, 0, 0, offset_x, offset_y))
{
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
_gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
gtk_gesture_get_device (GTK_GESTURE (gesture)));
}
}
static void
gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
{
g_signal_emit_by_name (data, "clicked");
}
static gboolean
gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling,
gpointer data)
{
GtkTreeViewColumn *column = (GtkTreeViewColumn *)data;
GtkTreeViewColumnPrivate *priv = column->priv;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
_gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
if (priv->clickable)
g_signal_emit_by_name (priv->button, "clicked");
else if (gtk_widget_get_can_focus (priv->button))
gtk_widget_grab_focus (priv->button);
else
gtk_widget_grab_focus (priv->tree_view);
return TRUE;
}
static void
gtk_tree_view_model_sort_column_changed (GtkTreeSortable *sortable,
GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
int sort_column_id;
GtkSortType order;
if (gtk_tree_sortable_get_sort_column_id (sortable,
&sort_column_id,
&order))
{
if (sort_column_id == priv->sort_column_id)
{
gtk_tree_view_column_set_sort_indicator (column, TRUE);
gtk_tree_view_column_set_sort_order (column, order);
}
else
{
gtk_tree_view_column_set_sort_indicator (column, FALSE);
}
}
else
{
gtk_tree_view_column_set_sort_indicator (column, FALSE);
}
}
static void
gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
gpointer data)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
GtkTreeModel *model;
GtkTreeSortable *sortable;
int sort_column_id;
GtkSortType order;
gboolean has_sort_column;
gboolean has_default_sort_func;
g_return_if_fail (priv->tree_view != NULL);
model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
sortable = GTK_TREE_SORTABLE (model);
has_sort_column =
gtk_tree_sortable_get_sort_column_id (sortable,
&sort_column_id,
&order);
has_default_sort_func =
gtk_tree_sortable_has_default_sort_func (sortable);
if (has_sort_column &&
sort_column_id == priv->sort_column_id)
{
if (order == GTK_SORT_ASCENDING)
gtk_tree_sortable_set_sort_column_id (sortable,
priv->sort_column_id,
GTK_SORT_DESCENDING);
else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
gtk_tree_sortable_set_sort_column_id (sortable,
GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
GTK_SORT_ASCENDING);
else
gtk_tree_sortable_set_sort_column_id (sortable,
priv->sort_column_id,
GTK_SORT_ASCENDING);
}
else
{
gtk_tree_sortable_set_sort_column_id (sortable,
priv->sort_column_id,
GTK_SORT_ASCENDING);
}
}
static void
gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
GtkTreeModel *model;
if (priv->tree_view == NULL)
return;
model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
if (model == NULL)
return;
if (GTK_IS_TREE_SORTABLE (model) &&
priv->sort_column_id != -1)
{
int real_sort_column_id;
GtkSortType real_order;
if (priv->sort_column_changed_signal == 0)
priv->sort_column_changed_signal =
g_signal_connect (model, "sort-column-changed",
G_CALLBACK (gtk_tree_view_model_sort_column_changed),
tree_column);
if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
&real_sort_column_id,
&real_order) &&
(real_sort_column_id == priv->sort_column_id))
{
gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
gtk_tree_view_column_set_sort_order (tree_column, real_order);
}
else
{
gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
}
}
}
static void
gtk_tree_view_column_context_changed (GtkCellAreaContext *context,
GParamSpec *pspec,
GtkTreeViewColumn *tree_column)
{
/* Here we want the column re-requested if the underlying context was
* actually reset for any reason, this can happen if the underlying
* area/cell configuration changes (i.e. cell packing properties
* or cell spacing and the like)
*
* Note that we block this handler while requesting for sizes
* so there is no need to check for the new context size being -1,
* we also block the handler when explicitly resetting the context
* so as to avoid some infinite stack recursion.
*/
if (!strcmp (pspec->name, "minimum-width") ||
!strcmp (pspec->name, "natural-width") ||
!strcmp (pspec->name, "minimum-height") ||
!strcmp (pspec->name, "natural-height"))
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
static void
gtk_tree_view_column_add_editable_callback (GtkCellArea *area,
GtkCellRenderer *renderer,
GtkCellEditable *edit_widget,
GdkRectangle *cell_area,
const char *path_string,
gpointer user_data)
{
GtkTreeViewColumn *column = user_data;
GtkTreeViewColumnPrivate *priv = column->priv;
GtkTreePath *path;
if (priv->tree_view)
{
path = gtk_tree_path_new_from_string (path_string);
_gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
column,
path,
edit_widget,
cell_area);
gtk_tree_path_free (path);
}
}
static void
gtk_tree_view_column_remove_editable_callback (GtkCellArea *area,
GtkCellRenderer *renderer,
GtkCellEditable *edit_widget,
gpointer user_data)
{
GtkTreeViewColumn *column = user_data;
GtkTreeViewColumnPrivate *priv = column->priv;
if (priv->tree_view)
_gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
column,
edit_widget);
}
/* Exported Private Functions.
* These should only be called by gtktreeview.c or gtktreeviewcolumn.c
*/
void
_gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (column->priv->tree_view));
g_return_if_fail (gtk_widget_get_realized (column->priv->tree_view));
g_return_if_fail (column->priv->button != NULL);
gtk_tree_view_column_update_button (column);
}
void
_gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
GtkTreeModel *old_model)
{
GtkTreeViewColumnPrivate *priv = column->priv;
if (priv->sort_column_changed_signal)
{
g_signal_handler_disconnect (old_model,
priv->sort_column_changed_signal);
priv->sort_column_changed_signal = 0;
}
gtk_tree_view_column_set_sort_indicator (column, FALSE);
}
void
_gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
GtkTreeView *tree_view)
{
GtkTreeViewColumnPrivate *priv = column->priv;
g_assert (priv->tree_view == NULL);
priv->tree_view = GTK_WIDGET (tree_view);
/* avoid a warning with our messed up CSS nodes */
gtk_widget_insert_after (priv->button, GTK_WIDGET (tree_view), NULL);
priv->property_changed_signal =
g_signal_connect_swapped (tree_view,
"notify::model",
G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
column);
gtk_tree_view_column_setup_sort_column_id_callback (column);
}
void
_gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
if (priv->tree_view == NULL)
return;
gtk_widget_unparent (priv->button);
if (priv->property_changed_signal)
{
g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
priv->property_changed_signal = 0;
}
if (priv->sort_column_changed_signal)
{
g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
priv->sort_column_changed_signal);
priv->sort_column_changed_signal = 0;
}
priv->tree_view = NULL;
}
gboolean
_gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
gboolean ret = FALSE;
GList *list, *cells;
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
for (list = cells; list; list = list->next)
{
GtkCellRenderer *cell = list->data;
GtkCellRendererMode mode;
g_object_get (cell, "mode", &mode, NULL);
if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
{
ret = TRUE;
break;
}
}
g_list_free (cells);
return ret;
}
/* gets cell being edited */
GtkCellRenderer *
_gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
{
GtkTreeViewColumnPrivate *priv = column->priv;
return gtk_cell_area_get_edited_cell (priv->cell_area);
}
GtkCellRenderer *
_gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
GdkRectangle *cell_area,
GdkRectangle *background_area,
int x,
int y)
{
GtkCellRenderer *match = NULL;
GtkTreeViewColumnPrivate *priv = column->priv;
/* If (x, y) is outside of the background area, immediately return */
if (x < background_area->x ||
x > background_area->x + background_area->width ||
y < background_area->y ||
y > background_area->y + background_area->height)
return NULL;
/* If (x, y) is inside the background area, clamp it to the cell_area
* so that a cell is still returned. The main reason for doing this
* (on the x axis) is for handling clicks in the indentation area
* (either at the left or right depending on RTL setting). Another
* reason is for handling clicks on the area where the focus rectangle
* is drawn (this is outside of cell area), this manifests itself
* mainly when a large setting is used for focus-line-width.
*/
if (x < cell_area->x)
x = cell_area->x;
else if (x > cell_area->x + cell_area->width)
x = cell_area->x + cell_area->width;
if (y < cell_area->y)
y = cell_area->y;
else if (y > cell_area->y + cell_area->height)
y = cell_area->y + cell_area->height;
match = gtk_cell_area_get_cell_at_position (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
cell_area,
x, y,
NULL);
return match;
}
gboolean
_gtk_tree_view_column_is_blank_at_pos (GtkTreeViewColumn *column,
GdkRectangle *cell_area,
GdkRectangle *background_area,
int x,
int y)
{
GtkCellRenderer *match;
GdkRectangle cell_alloc, aligned_area, inner_area;
GtkTreeViewColumnPrivate *priv = column->priv;
match = _gtk_tree_view_column_get_cell_at_pos (column,
cell_area,
background_area,
x, y);
if (!match)
return FALSE;
gtk_cell_area_get_cell_allocation (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
match,
cell_area,
&cell_alloc);
gtk_cell_area_inner_cell_area (priv->cell_area, priv->tree_view,
&cell_alloc, &inner_area);
gtk_cell_renderer_get_aligned_area (match, priv->tree_view, 0,
&inner_area, &aligned_area);
if (x < aligned_area.x ||
x > aligned_area.x + aligned_area.width ||
y < aligned_area.y ||
y > aligned_area.y + aligned_area.height)
return TRUE;
return FALSE;
}
/* Public Functions */
/**
* gtk_tree_view_column_new:
*
* Creates a new #GtkTreeViewColumn.
*
* Returns: A newly created #GtkTreeViewColumn.
**/
GtkTreeViewColumn *
gtk_tree_view_column_new (void)
{
GtkTreeViewColumn *tree_column;
tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
return tree_column;
}
/**
* gtk_tree_view_column_new_with_area:
* @area: the #GtkCellArea that the newly created column should use to layout cells.
*
* Creates a new #GtkTreeViewColumn using @area to render its cells.
*
* Returns: A newly created #GtkTreeViewColumn.
*/
GtkTreeViewColumn *
gtk_tree_view_column_new_with_area (GtkCellArea *area)
{
GtkTreeViewColumn *tree_column;
tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
return tree_column;
}
/**
* gtk_tree_view_column_new_with_attributes:
* @title: The title to set the header to
* @cell: The #GtkCellRenderer
* @...: A %NULL-terminated list of attributes
*
* Creates a new #GtkTreeViewColumn with a number of default values.
* This is equivalent to calling gtk_tree_view_column_set_title(),
* gtk_tree_view_column_pack_start(), and
* gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
*
* Here’s a simple example:
* |[<!-- language="C" -->
* enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
* // ...
* {
* GtkTreeViewColumn *column;
* GtkCellRenderer *renderer = gtk_cell_renderer_text_new ();
*
* column = gtk_tree_view_column_new_with_attributes ("Title",
* renderer,
* "text", TEXT_COLUMN,
* "foreground", COLOR_COLUMN,
* NULL);
* }
* ]|
*
* Returns: A newly created #GtkTreeViewColumn.
**/
GtkTreeViewColumn *
gtk_tree_view_column_new_with_attributes (const char *title,
GtkCellRenderer *cell,
...)
{
GtkTreeViewColumn *retval;
va_list args;
retval = gtk_tree_view_column_new ();
gtk_tree_view_column_set_title (retval, title);
gtk_tree_view_column_pack_start (retval, cell, TRUE);
va_start (args, cell);
gtk_tree_view_column_set_attributesv (retval, cell, args);
va_end (args);
return retval;
}
/**
* gtk_tree_view_column_pack_start:
* @tree_column: A #GtkTreeViewColumn.
* @cell: The #GtkCellRenderer.
* @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
*
* Packs the @cell into the beginning of the column. If @expand is %FALSE, then
* the @cell is allocated no more space than it needs. Any unused space is divided
* evenly between cells for which @expand is %TRUE.
**/
void
gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell,
gboolean expand)
{
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
}
/**
* gtk_tree_view_column_pack_end:
* @tree_column: A #GtkTreeViewColumn.
* @cell: The #GtkCellRenderer.
* @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
*
* Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
* is allocated no more space than it needs. Any unused space is divided
* evenly between cells for which @expand is %TRUE.
**/
void
gtk_tree_view_column_pack_end (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell,
gboolean expand)
{
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
}
/**
* gtk_tree_view_column_clear:
* @tree_column: A #GtkTreeViewColumn
*
* Unsets all the mappings on all renderers on the @tree_column.
**/
void
gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
{
gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
}
/**
* gtk_tree_view_column_add_attribute:
* @tree_column: A #GtkTreeViewColumn.
* @cell_renderer: the #GtkCellRenderer to set attributes on
* @attribute: An attribute on the renderer
* @column: The column position on the model to get the attribute from.
*
* Adds an attribute mapping to the list in @tree_column. The @column is the
* column of the model to get a value from, and the @attribute is the
* parameter on @cell_renderer to be set from the value. So for example
* if column 2 of the model contains strings, you could have the
* “text” attribute of a #GtkCellRendererText get its values from
* column 2.
**/
void
gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
const char *attribute,
int column)
{
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
cell_renderer, attribute, column);
}
static void
gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
va_list args)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
char *attribute;
int column;
attribute = va_arg (args, char *);
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
cell_renderer);
while (attribute != NULL)
{
column = va_arg (args, int);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
cell_renderer, attribute, column);
attribute = va_arg (args, char *);
}
}
/**
* gtk_tree_view_column_set_attributes:
* @tree_column: A #GtkTreeViewColumn
* @cell_renderer: the #GtkCellRenderer we’re setting the attributes of
* @...: A %NULL-terminated list of attributes
*
* Sets the attributes in the list as the attributes of @tree_column.
* The attributes should be in attribute/column order, as in
* gtk_tree_view_column_add_attribute(). All existing attributes
* are removed, and replaced with the new attributes.
*/
void
gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
...)
{
va_list args;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
va_start (args, cell_renderer);
gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
va_end (args);
}
/**
* gtk_tree_view_column_set_cell_data_func:
* @tree_column: A #GtkTreeViewColumn
* @cell_renderer: A #GtkCellRenderer
* @func: (allow-none): The #GtkTreeCellDataFunc to use.
* @func_data: (closure): The user data for @func.
* @destroy: The destroy notification for @func_data
*
* Sets the #GtkTreeCellDataFunc to use for the column. This
* function is used instead of the standard attributes mapping for
* setting the column value, and should set the value of @tree_column's
* cell renderer as appropriate. @func may be %NULL to remove an
* older one.
**/
void
gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
GtkTreeCellDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
cell_renderer,
(GtkCellLayoutDataFunc)func,
func_data, destroy);
}
/**
* gtk_tree_view_column_clear_attributes:
* @tree_column: a #GtkTreeViewColumn
* @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
*
* Clears all existing attributes previously set with
* gtk_tree_view_column_set_attributes().
**/
void
gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer)
{
gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
cell_renderer);
}
/**
* gtk_tree_view_column_set_spacing:
* @tree_column: A #GtkTreeViewColumn.
* @spacing: distance between cell renderers in pixels.
*
* Sets the spacing field of @tree_column, which is the number of pixels to
* place between cell renderers packed into it.
**/
void
gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
int spacing)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (spacing >= 0);
priv = tree_column->priv;
if (gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area)) != spacing)
{
gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area), spacing);
if (priv->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SPACING]);
}
}
/**
* gtk_tree_view_column_get_spacing:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the spacing of @tree_column.
*
* Returns: the spacing of @tree_column.
**/
int
gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
priv = tree_column->priv;
return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
}
/* Options for manipulating the columns */
/**
* gtk_tree_view_column_set_visible:
* @tree_column: A #GtkTreeViewColumn.
* @visible: %TRUE if the @tree_column is visible.
*
* Sets the visibility of @tree_column.
*/
void
gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
gboolean visible)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
visible = !! visible;
if (priv->visible == visible)
return;
priv->visible = visible;
gtk_widget_set_visible (priv->button, visible);
if (priv->visible)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_VISIBLE]);
}
/**
* gtk_tree_view_column_get_visible:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns %TRUE if @tree_column is visible.
*
* Returns: whether the column is visible or not. If it is visible, then
* the tree will show the column.
**/
gboolean
gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->visible;
}
/**
* gtk_tree_view_column_set_resizable:
* @tree_column: A #GtkTreeViewColumn
* @resizable: %TRUE, if the column can be resized
*
* If @resizable is %TRUE, then the user can explicitly resize the column by
* grabbing the outer edge of the column button. If resizable is %TRUE and
* sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
* mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
**/
void
gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
gboolean resizable)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
resizable = !! resizable;
if (priv->resizable == resizable)
return;
priv->resizable = resizable;
if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_RESIZABLE]);
}
/**
* gtk_tree_view_column_get_resizable:
* @tree_column: A #GtkTreeViewColumn
*
* Returns %TRUE if the @tree_column can be resized by the end user.
*
* Returns: %TRUE, if the @tree_column can be resized.
**/
gboolean
gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->resizable;
}
/**
* gtk_tree_view_column_set_sizing:
* @tree_column: A #GtkTreeViewColumn.
* @type: The #GtkTreeViewColumnSizing.
*
* Sets the growth behavior of @tree_column to @type.
**/
void
gtk_tree_view_column_set_sizing (GtkTreeViewColumn *tree_column,
GtkTreeViewColumnSizing type)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
if (type == priv->column_type)
return;
if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
gtk_tree_view_column_set_resizable (tree_column, FALSE);
priv->column_type = type;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SIZING]);
}
/**
* gtk_tree_view_column_get_sizing:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current type of @tree_column.
*
* Returns: The type of @tree_column.
**/
GtkTreeViewColumnSizing
gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->column_type;
}
/**
* gtk_tree_view_column_get_width:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current size of @tree_column in pixels.
*
* Returns: The current width of @tree_column.
**/
int
gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->width;
}
/**
* gtk_tree_view_column_get_x_offset:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current X offset of @tree_column in pixels.
*
* Returns: The current X offset of @tree_column.
*/
int
gtk_tree_view_column_get_x_offset (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->x_offset;
}
int
_gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv;
int real_requested_width;
priv = tree_column->priv;
if (priv->fixed_width != -1)
{
real_requested_width = priv->fixed_width;
}
else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
{
int button_request;
int requested_width;
gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
requested_width += priv->padding;
gtk_widget_measure (priv->button, GTK_ORIENTATION_HORIZONTAL, -1,
&button_request, NULL, NULL, NULL);
real_requested_width = MAX (requested_width, button_request);
}
else
{
int requested_width;
gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
requested_width += priv->padding;
real_requested_width = requested_width;
if (real_requested_width < 0)
real_requested_width = 0;
}
if (priv->min_width != -1)
real_requested_width = MAX (real_requested_width, priv->min_width);
if (priv->max_width != -1)
real_requested_width = MIN (real_requested_width, priv->max_width);
return real_requested_width;
}
void
_gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
int x_offset,
int width,
int height)
{
GtkTreeViewColumnPrivate *priv;
GtkAllocation allocation = { 0, 0, 0, 0 };
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
if (priv->width != width)
gtk_widget_queue_draw (priv->tree_view);
priv->x_offset = x_offset;
priv->width = width;
gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
{
/* TODO: Underallocates the button horizontally, but
* https://bugzilla.gnome.org/show_bug.cgi?id=770388
*/
allocation.x = x_offset;
allocation.y = 0;
allocation.width = width;
allocation.height = height;
gtk_widget_size_allocate (priv->button, &allocation, -1);
}
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_X_OFFSET]);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_WIDTH]);
}
/**
* gtk_tree_view_column_set_fixed_width:
* @tree_column: A #GtkTreeViewColumn.
* @fixed_width: The new fixed width, in pixels, or -1.
*
* If @fixed_width is not -1, sets the fixed width of @tree_column; otherwise
* unsets it. The effective value of @fixed_width is clamped between the
* minimum and maximum width of the column; however, the value stored in the
* “fixed-width” property is not clamped. If the column sizing is
* #GTK_TREE_VIEW_COLUMN_GROW_ONLY or #GTK_TREE_VIEW_COLUMN_AUTOSIZE, setting
* a fixed width overrides the automatically calculated width. Note that
* @fixed_width is only a hint to GTK; the width actually allocated to the
* column may be greater or less than requested.
*
* Along with “expand”, the “fixed-width” property changes when the column is
* resized by the user.
**/
void
gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
int fixed_width)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (fixed_width >= -1);
priv = tree_column->priv;
if (priv->fixed_width != fixed_width)
{
priv->fixed_width = fixed_width;
if (priv->visible &&
priv->tree_view != NULL &&
gtk_widget_get_realized (priv->tree_view))
gtk_widget_queue_resize (priv->tree_view);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_FIXED_WIDTH]);
}
}
/**
* gtk_tree_view_column_get_fixed_width:
* @tree_column: A #GtkTreeViewColumn.
*
* Gets the fixed width of the column. This may not be the actual displayed
* width of the column; for that, use gtk_tree_view_column_get_width().
*
* Returns: The fixed width of the column.
**/
int
gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->fixed_width;
}
/**
* gtk_tree_view_column_set_min_width:
* @tree_column: A #GtkTreeViewColumn.
* @min_width: The minimum width of the column in pixels, or -1.
*
* Sets the minimum width of the @tree_column. If @min_width is -1, then the
* minimum width is unset.
**/
void
gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
int min_width)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (min_width >= -1);
priv = tree_column->priv;
if (min_width == priv->min_width)
return;
if (priv->visible &&
priv->tree_view != NULL &&
gtk_widget_get_realized (priv->tree_view))
{
if (min_width > priv->width)
gtk_widget_queue_resize (priv->tree_view);
}
priv->min_width = min_width;
g_object_freeze_notify (G_OBJECT (tree_column));
if (priv->max_width != -1 && priv->max_width < min_width)
{
priv->max_width = min_width;
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_MAX_WIDTH]);
}
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_MIN_WIDTH]);
g_object_thaw_notify (G_OBJECT (tree_column));
if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE && priv->tree_view)
_gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
tree_column);
}
/**
* gtk_tree_view_column_get_min_width:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
* width is set.
*
* Returns: The minimum width of the @tree_column.
**/
int
gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
return tree_column->priv->min_width;
}
/**
* gtk_tree_view_column_set_max_width:
* @tree_column: A #GtkTreeViewColumn.
* @max_width: The maximum width of the column in pixels, or -1.
*
* Sets the maximum width of the @tree_column. If @max_width is -1, then the
* maximum width is unset. Note, the column can actually be wider than max
* width if it’s the last column in a view. In this case, the column expands to
* fill any extra space.
**/
void
gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
int max_width)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (max_width >= -1);
priv = tree_column->priv;
if (max_width == priv->max_width)
return;
if (priv->visible &&
priv->tree_view != NULL &&
gtk_widget_get_realized (priv->tree_view))
{
if (max_width != -1 && max_width < priv->width)
gtk_widget_queue_resize (priv->tree_view);
}
priv->max_width = max_width;
g_object_freeze_notify (G_OBJECT (tree_column));
if (max_width != -1 && max_width < priv->min_width)
{
priv->min_width = max_width;
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_MIN_WIDTH]);
}
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_MAX_WIDTH]);
g_object_thaw_notify (G_OBJECT (tree_column));
if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE && priv->tree_view)
_gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
tree_column);
}
/**
* gtk_tree_view_column_get_max_width:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
* width is set.
*
* Returns: The maximum width of the @tree_column.
**/
int
gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
return tree_column->priv->max_width;
}
/**
* gtk_tree_view_column_clicked:
* @tree_column: a #GtkTreeViewColumn
*
* Emits the “clicked” signal on the column. This function will only work if
* @tree_column is clickable.
**/
void
gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
if (priv->visible && priv->clickable)
g_signal_emit_by_name (priv->button, "clicked");
}
/**
* gtk_tree_view_column_set_title:
* @tree_column: A #GtkTreeViewColumn.
* @title: The title of the @tree_column.
*
* Sets the title of the @tree_column. If a custom widget has been set, then
* this value is ignored.
**/
void
gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
const char *title)
{
GtkTreeViewColumnPrivate *priv;
char *new_title;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
new_title = g_strdup (title);
g_free (priv->title);
priv->title = new_title;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_TITLE]);
}
/**
* gtk_tree_view_column_get_title:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the title of the widget.
*
* Returns: the title of the column. This string should not be
* modified or freed.
**/
const char *
gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->priv->title;
}
/**
* gtk_tree_view_column_set_expand:
* @tree_column: A #GtkTreeViewColumn.
* @expand: %TRUE if the column should expand to fill available space.
*
* Sets the column to take available extra space. This space is shared equally
* amongst all columns that have the expand set to %TRUE. If no column has this
* option set, then the last column gets all extra space. By default, every
* column is created with this %FALSE.
*
* Along with “fixed-width”, the “expand” property changes when the column is
* resized by the user.
**/
void
gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
gboolean expand)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
expand = expand?TRUE:FALSE;
if (priv->expand == expand)
return;
priv->expand = expand;
if (priv->visible &&
priv->tree_view != NULL &&
gtk_widget_get_realized (priv->tree_view))
{
gtk_widget_queue_resize (priv->tree_view);
}
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_EXPAND]);
}
/**
* gtk_tree_view_column_get_expand:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns %TRUE if the column expands to fill available space.
*
* Returns: %TRUE if the column expands to fill available space.
**/
gboolean
gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->expand;
}
/**
* gtk_tree_view_column_set_clickable:
* @tree_column: A #GtkTreeViewColumn.
* @clickable: %TRUE if the header is active.
*
* Sets the header to be active if @clickable is %TRUE. When the header is
* active, then it can take keyboard focus, and can be clicked.
**/
void
gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
gboolean clickable)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
clickable = !! clickable;
if (priv->clickable == clickable)
return;
priv->clickable = clickable;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_CLICKABLE]);
}
/**
* gtk_tree_view_column_get_clickable:
* @tree_column: a #GtkTreeViewColumn
*
* Returns %TRUE if the user can click on the header for the column.
*
* Returns: %TRUE if user can click the column header.
**/
gboolean
gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->clickable;
}
/**
* gtk_tree_view_column_set_widget:
* @tree_column: A #GtkTreeViewColumn.
* @widget: (allow-none): A child #GtkWidget, or %NULL.
*
* Sets the widget in the header to be @widget. If widget is %NULL, then the
* header button is set with a #GtkLabel set to the title of @tree_column.
**/
void
gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
GtkWidget *widget)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
priv = tree_column->priv;
if (widget)
g_object_ref_sink (widget);
if (priv->child)
g_object_unref (priv->child);
priv->child = widget;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_WIDGET]);
}
/**
* gtk_tree_view_column_get_widget:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the #GtkWidget in the button on the column header.
* If a custom widget has not been set then %NULL is returned.
*
* Returns: (nullable) (transfer none): The #GtkWidget in the column
* header, or %NULL
**/
GtkWidget *
gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->priv->child;
}
/**
* gtk_tree_view_column_set_alignment:
* @tree_column: A #GtkTreeViewColumn.
* @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
*
* Sets the alignment of the title or custom widget inside the column header.
* The alignment determines its location inside the button -- 0.0 for left, 0.5
* for center, 1.0 for right.
**/
void
gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
float xalign)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
xalign = CLAMP (xalign, 0.0, 1.0);
if (priv->xalign == xalign)
return;
priv->xalign = xalign;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_ALIGNMENT]);
}
/**
* gtk_tree_view_column_get_alignment:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current x alignment of @tree_column. This value can range
* between 0.0 and 1.0.
*
* Returns: The current alignent of @tree_column.
**/
float
gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
return tree_column->priv->xalign;
}
/**
* gtk_tree_view_column_set_reorderable:
* @tree_column: A #GtkTreeViewColumn
* @reorderable: %TRUE, if the column can be reordered.
*
* If @reorderable is %TRUE, then the column can be reordered by the end user
* dragging the header.
**/
void
gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
gboolean reorderable)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
/* if (reorderable)
gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
if (priv->reorderable == (reorderable?TRUE:FALSE))
return;
priv->reorderable = (reorderable?TRUE:FALSE);
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_REORDERABLE]);
}
/**
* gtk_tree_view_column_get_reorderable:
* @tree_column: A #GtkTreeViewColumn
*
* Returns %TRUE if the @tree_column can be reordered by the user.
*
* Returns: %TRUE if the @tree_column can be reordered by the user.
**/
gboolean
gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->reorderable;
}
/**
* gtk_tree_view_column_set_sort_column_id:
* @tree_column: a #GtkTreeViewColumn
* @sort_column_id: The @sort_column_id of the model to sort on.
*
* Sets the logical @sort_column_id that this column sorts on when this column
* is selected for sorting. Doing so makes the column header clickable.
**/
void
gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
int sort_column_id)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (sort_column_id >= -1);
priv = tree_column->priv;
if (priv->sort_column_id == sort_column_id)
return;
priv->sort_column_id = sort_column_id;
/* Handle unsetting the id */
if (sort_column_id == -1)
{
GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
if (priv->sort_clicked_signal)
{
g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
priv->sort_clicked_signal = 0;
}
if (priv->sort_column_changed_signal)
{
g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
priv->sort_column_changed_signal = 0;
}
gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
gtk_tree_view_column_set_clickable (tree_column, FALSE);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SORT_COLUMN_ID]);
return;
}
gtk_tree_view_column_set_clickable (tree_column, TRUE);
if (! priv->sort_clicked_signal)
priv->sort_clicked_signal = g_signal_connect (tree_column,
"clicked",
G_CALLBACK (gtk_tree_view_column_sort),
NULL);
gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SORT_COLUMN_ID]);
}
/**
* gtk_tree_view_column_get_sort_column_id:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the logical @sort_column_id that the model sorts on when this
* column is selected for sorting.
* See gtk_tree_view_column_set_sort_column_id().
*
* Returns: the current @sort_column_id for this column, or -1 if
* this column can’t be used for sorting.
**/
int
gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->sort_column_id;
}
/**
* gtk_tree_view_column_set_sort_indicator:
* @tree_column: a #GtkTreeViewColumn
* @setting: %TRUE to display an indicator that the column is sorted
*
* Call this function with a @setting of %TRUE to display an arrow in
* the header button indicating the column is sorted. Call
* gtk_tree_view_column_set_sort_order() to change the direction of
* the arrow.
*
**/
void
gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn *tree_column,
gboolean setting)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
setting = setting != FALSE;
if (setting == tree_column->priv->show_sort_indicator)
return;
tree_column->priv->show_sort_indicator = setting;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SORT_INDICATOR]);
}
/**
* gtk_tree_view_column_get_sort_indicator:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the value set by gtk_tree_view_column_set_sort_indicator().
*
* Returns: whether the sort indicator arrow is displayed
**/
gboolean
gtk_tree_view_column_get_sort_indicator (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->priv->show_sort_indicator;
}
/**
* gtk_tree_view_column_set_sort_order:
* @tree_column: a #GtkTreeViewColumn
* @order: sort order that the sort indicator should indicate
*
* Changes the appearance of the sort indicator.
*
* This does not actually sort the model. Use
* gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
* support. This function is primarily for custom sorting behavior, and should
* be used in conjunction with gtk_tree_sortable_set_sort_column_id() to do
* that. For custom models, the mechanism will vary.
*
* The sort indicator changes direction to indicate normal sort or reverse sort.
* Note that you must have the sort indicator enabled to see anything when
* calling this function; see gtk_tree_view_column_set_sort_indicator().
**/
void
gtk_tree_view_column_set_sort_order (GtkTreeViewColumn *tree_column,
GtkSortType order)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (order == tree_column->priv->sort_order)
return;
tree_column->priv->sort_order = order;
gtk_tree_view_column_update_button (tree_column);
g_object_notify_by_pspec (G_OBJECT (tree_column), tree_column_props[PROP_SORT_ORDER]);
}
/**
* gtk_tree_view_column_get_sort_order:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the value set by gtk_tree_view_column_set_sort_order().
*
* Returns: the sort order the sort indicator is indicating
**/
GtkSortType
gtk_tree_view_column_get_sort_order (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->priv->sort_order;
}
/**
* gtk_tree_view_column_cell_set_cell_data:
* @tree_column: A #GtkTreeViewColumn.
* @tree_model: The #GtkTreeModel to get the cell renderers attributes from.
* @iter: The #GtkTreeIter to get the cell renderer’s attributes from.
* @is_expander: %TRUE, if the row has children
* @is_expanded: %TRUE, if the row has visible children
*
* Sets the cell renderer based on the @tree_model and @iter. That is, for
* every attribute mapping in @tree_column, it will get a value from the set
* column on the @iter, and use that value to set the attribute on the cell
* renderer. This is used primarily by the #GtkTreeView.
**/
void
gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gboolean is_expander,
gboolean is_expanded)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (tree_model == NULL)
return;
gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
is_expander, is_expanded);
}
/**
* gtk_tree_view_column_cell_get_size:
* @tree_column: A #GtkTreeViewColumn.
* @x_offset: (out) (optional): location to return x offset of a cell relative to @cell_area, or %NULL
* @y_offset: (out) (optional): location to return y offset of a cell relative to @cell_area, or %NULL
* @width: (out) (optional): location to return width needed to render a cell, or %NULL
* @height: (out) (optional): location to return height needed to render a cell, or %NULL
*
* Obtains the width and height needed to render the column. This is used
* primarily by the #GtkTreeView.
**/
void
gtk_tree_view_column_cell_get_size (GtkTreeViewColumn *tree_column,
int *x_offset,
int *y_offset,
int *width,
int *height)
{
GtkTreeViewColumnPrivate *priv;
int min_width = 0, min_height = 0;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
priv = tree_column->priv;
g_signal_handler_block (priv->cell_area_context,
priv->context_changed_signal);
gtk_cell_area_get_preferred_width (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
NULL, NULL);
gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
min_width,
&min_height,
NULL);
g_signal_handler_unblock (priv->cell_area_context,
priv->context_changed_signal);
if (height)
* height = min_height;
if (width)
* width = min_width;
}
/**
* gtk_tree_view_column_cell_snapshot:
* @tree_column: A #GtkTreeViewColumn.
* @snapshot: #GtkSnapshot to draw to
* @background_area: entire cell area (including tree expanders and maybe padding on the sides)
* @cell_area: area normally rendered by a cell renderer
* @flags: flags that affect rendering
*
* Renders the cell contained by #tree_column. This is used primarily by the
* #GtkTreeView.
**/
void
gtk_tree_view_column_cell_snapshot (GtkTreeViewColumn *tree_column,
GtkSnapshot *snapshot,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
guint flags,
gboolean draw_focus)
{
GtkTreeViewColumnPrivate *priv;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (snapshot != NULL);
g_return_if_fail (background_area != NULL);
g_return_if_fail (cell_area != NULL);
priv = tree_column->priv;
gtk_cell_area_snapshot (priv->cell_area, priv->cell_area_context,
priv->tree_view, snapshot,
background_area, cell_area, flags,
draw_focus);
}
gboolean
_gtk_tree_view_column_cell_event (GtkTreeViewColumn *tree_column,
GdkEvent *event,
const GdkRectangle *cell_area,
guint flags)
{
GtkTreeViewColumnPrivate *priv;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
priv = tree_column->priv;
return gtk_cell_area_event (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
event,
cell_area,
flags);
}
/**
* gtk_tree_view_column_cell_is_visible:
* @tree_column: A #GtkTreeViewColumn
*
* Returns %TRUE if any of the cells packed into the @tree_column are visible.
* For this to be meaningful, you must first initialize the cells with
* gtk_tree_view_column_cell_set_cell_data()
*
* Returns: %TRUE, if any of the cells packed into the @tree_column are currently visible
**/
gboolean
gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
{
GList *list;
GList *cells;
GtkTreeViewColumnPrivate *priv;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
priv = tree_column->priv;
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
for (list = cells; list; list = list->next)
{
if (gtk_cell_renderer_get_visible (list->data))
{
g_list_free (cells);
return TRUE;
}
}
g_list_free (cells);
return FALSE;
}
/**
* gtk_tree_view_column_focus_cell:
* @tree_column: A #GtkTreeViewColumn
* @cell: A #GtkCellRenderer
*
* Sets the current keyboard focus to be at @cell, if the column contains
* 2 or more editable and activatable cells.
**/
void
gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
}
void
_gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
gboolean install_handler)
{
GtkTreeViewColumnPrivate *priv = tree_column->priv;
priv->dirty = TRUE;
priv->padding = 0;
priv->width = 0;
/* Issue a manual reset on the context to have all
* sizes re-requested for the context.
*/
g_signal_handler_block (priv->cell_area_context,
priv->context_changed_signal);
gtk_cell_area_context_reset (priv->cell_area_context);
g_signal_handler_unblock (priv->cell_area_context,
priv->context_changed_signal);
if (priv->tree_view &&
gtk_widget_get_realized (priv->tree_view))
{
_gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
gtk_widget_queue_resize (priv->tree_view);
}
}
gboolean
_gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn *tree_column)
{
return tree_column->priv->dirty;
}
/**
* gtk_tree_view_column_cell_get_position:
* @tree_column: a #GtkTreeViewColumn
* @cell_renderer: a #GtkCellRenderer
* @x_offset: (out) (allow-none): return location for the horizontal
* position of @cell within @tree_column, may be %NULL
* @width: (out) (allow-none): return location for the width of @cell,
* may be %NULL
*
* Obtains the horizontal position and size of a cell in a column. If the
* cell is not found in the column, @start_pos and @width are not changed and
* %FALSE is returned.
*
* Returns: %TRUE if @cell belongs to @tree_column.
*/
gboolean
gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
int *x_offset,
int *width)
{
GtkTreeViewColumnPrivate *priv;
GdkRectangle cell_area;
GdkRectangle allocation;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
priv = tree_column->priv;
if (! gtk_cell_area_has_renderer (priv->cell_area, cell_renderer))
return FALSE;
gtk_tree_view_get_background_area (GTK_TREE_VIEW (priv->tree_view),
NULL, tree_column, &cell_area);
gtk_cell_area_get_cell_allocation (priv->cell_area,
priv->cell_area_context,
priv->tree_view,
cell_renderer,
&cell_area,
&allocation);
if (x_offset)
*x_offset = allocation.x - cell_area.x;
if (width)
*width = allocation.width;
return TRUE;
}
/**
* gtk_tree_view_column_queue_resize:
* @tree_column: A #GtkTreeViewColumn
*
* Flags the column, and the cell renderers added to this column, to have
* their sizes renegotiated.
**/
void
gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (tree_column->priv->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
/**
* gtk_tree_view_column_get_tree_view:
* @tree_column: A #GtkTreeViewColumn
*
* Returns the #GtkTreeView wherein @tree_column has been inserted.
* If @column is currently not inserted in any tree view, %NULL is
* returned.
*
* Returns: (nullable) (transfer none): The tree view wherein @column has
* been inserted if any, %NULL otherwise.
*/
GtkWidget *
gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->priv->tree_view;
}
/**
* gtk_tree_view_column_get_button:
* @tree_column: A #GtkTreeViewColumn
*
* Returns the button used in the treeview column header
*
* Returns: (transfer none): The button for the column header.
*/
GtkWidget *
gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->priv->button;
}
void
_gtk_tree_view_column_push_padding (GtkTreeViewColumn *column,
int padding)
{
column->priv->padding = MAX (column->priv->padding, padding);
}
int
_gtk_tree_view_column_get_requested_width (GtkTreeViewColumn *column)
{
int requested_width;
gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
return requested_width + column->priv->padding;
}
int
_gtk_tree_view_column_get_drag_x (GtkTreeViewColumn *column)
{
return column->priv->drag_x;
}
GtkCellAreaContext *
_gtk_tree_view_column_get_context (GtkTreeViewColumn *column)
{
return column->priv->cell_area_context;
}
gboolean
_gtk_tree_view_column_coords_in_resize_rect (GtkTreeViewColumn *column,
double x,
double y)
{
GtkTreeViewColumnPrivate *priv = column->priv;
graphene_rect_t button_bounds;
/* x and y are in treeview coordinates. */
if (!gtk_widget_get_realized (priv->button) ||
!priv->resizable ||
!priv->visible)
return FALSE;
if (!gtk_widget_compute_bounds (priv->button, priv->tree_view, &button_bounds))
return FALSE;
if (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_LTR)
button_bounds.origin.x += button_bounds.size.width - TREE_VIEW_DRAG_WIDTH;
button_bounds.size.width = TREE_VIEW_DRAG_WIDTH;
return graphene_rect_contains_point (&button_bounds,
&(graphene_point_t){x, y});
}
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