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gtk2/gtk/gtktreeviewcolumn.c
Matthias Clasen 6fa25d074e New function to get the cell renderers of a cell layout. 
2006-12-29  Matthias Clasen  <mclasen@redhat.com>

        * gtk/gtk.symbols:
        * gtk/gtkcelllayout.[hc] (gtk_cell_layout_get_cells):
        New function to get the cell renderers of a cell layout.

        * gtk/gtktreeviewcolumn.c:
        * gtk/gtkcellview.c:
        * gtk/gtkiconview.c: Implement get_cells.
2006-12-29 07:53:01 +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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <string.h>
#include "gtktreeviewcolumn.h"
#include "gtktreeview.h"
#include "gtktreeprivate.h"
#include "gtkcelllayout.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkmarshalers.h"
#include "gtkarrow.h"
#include "gtkprivate.h"
#include "gtkintl.h"
#include "gtkalias.h"
enum
{
PROP_0,
PROP_VISIBLE,
PROP_RESIZABLE,
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
};
enum
{
CLICKED,
LAST_SIGNAL
};
typedef struct _GtkTreeViewColumnCellInfo GtkTreeViewColumnCellInfo;
struct _GtkTreeViewColumnCellInfo
{
GtkCellRenderer *cell;
GSList *attributes;
GtkTreeCellDataFunc func;
gpointer func_data;
GtkDestroyNotify destroy;
gint requested_width;
gint real_width;
guint expand : 1;
guint pack : 1;
guint has_focus : 1;
guint in_editing_mode : 1;
};
/* 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);
/* GtkCellLayout implementation */
static void gtk_tree_view_column_cell_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_tree_view_column_cell_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_tree_view_column_cell_layout_clear (GtkCellLayout *cell_layout);
static void gtk_tree_view_column_cell_layout_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column);
static void gtk_tree_view_column_cell_layout_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_tree_view_column_cell_layout_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell);
static void gtk_tree_view_column_cell_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position);
static GList *gtk_tree_view_column_cell_layout_get_cells (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 gint gtk_tree_view_column_button_event (GtkWidget *widget,
GdkEvent *event,
gpointer data);
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);
/* 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);
static GtkTreeViewColumnCellInfo *gtk_tree_view_column_get_cell_info (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer);
/* cell list manipulation */
static GList *gtk_tree_view_column_cell_first (GtkTreeViewColumn *tree_column);
static GList *gtk_tree_view_column_cell_last (GtkTreeViewColumn *tree_column);
static GList *gtk_tree_view_column_cell_next (GtkTreeViewColumn *tree_column,
GList *current);
static GList *gtk_tree_view_column_cell_prev (GtkTreeViewColumn *tree_column,
GList *current);
static void gtk_tree_view_column_clear_attributes_by_info (GtkTreeViewColumn *tree_column,
GtkTreeViewColumnCellInfo *info);
static guint tree_column_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, GTK_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_tree_view_column_cell_layout_init))
static void
gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass*) class;
class->clicked = NULL;
object_class->finalize = gtk_tree_view_column_finalize;
object_class->set_property = gtk_tree_view_column_set_property;
object_class->get_property = gtk_tree_view_column_get_property;
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,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_object_class_install_property (object_class,
PROP_VISIBLE,
g_param_spec_boolean ("visible",
P_("Visible"),
P_("Whether to display the column"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_RESIZABLE,
g_param_spec_boolean ("resizable",
P_("Resizable"),
P_("Column is user-resizable"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_WIDTH,
g_param_spec_int ("width",
P_("Width"),
P_("Current width of the column"),
0,
G_MAXINT,
0,
GTK_PARAM_READABLE));
g_object_class_install_property (object_class,
PROP_SPACING,
g_param_spec_int ("spacing",
P_("Spacing"),
P_("Space which is inserted between cells"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
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_object_class_install_property (object_class,
PROP_FIXED_WIDTH,
g_param_spec_int ("fixed-width",
P_("Fixed Width"),
P_("Current fixed width of the column"),
1,
G_MAXINT,
1, /* not useful */
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
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_object_class_install_property (object_class,
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_object_class_install_property (object_class,
PROP_TITLE,
g_param_spec_string ("title",
P_("Title"),
P_("Title to appear in column header"),
"",
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
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_object_class_install_property (object_class,
PROP_CLICKABLE,
g_param_spec_boolean ("clickable",
P_("Clickable"),
P_("Whether the header can be clicked"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
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));
g_object_class_install_property (object_class,
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_object_class_install_property (object_class,
PROP_REORDERABLE,
g_param_spec_boolean ("reorderable",
P_("Reorderable"),
P_("Whether the column can be reordered around the headers"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_SORT_INDICATOR,
g_param_spec_boolean ("sort-indicator",
P_("Sort indicator"),
P_("Whether to show a sort indicator"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
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));
}
static void
gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_tree_view_column_cell_layout_pack_start;
iface->pack_end = gtk_tree_view_column_cell_layout_pack_end;
iface->clear = gtk_tree_view_column_cell_layout_clear;
iface->add_attribute = gtk_tree_view_column_cell_layout_add_attribute;
iface->set_cell_data_func = gtk_tree_view_column_cell_layout_set_cell_data_func;
iface->clear_attributes = gtk_tree_view_column_cell_layout_clear_attributes;
iface->reorder = gtk_tree_view_column_cell_layout_reorder;
iface->get_cells = gtk_tree_view_column_cell_layout_get_cells;
}
static void
gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
{
tree_column->button = NULL;
tree_column->xalign = 0.0;
tree_column->width = 0;
tree_column->spacing = 0;
tree_column->requested_width = -1;
tree_column->min_width = -1;
tree_column->max_width = -1;
tree_column->resized_width = 0;
tree_column->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
tree_column->visible = TRUE;
tree_column->resizable = FALSE;
tree_column->expand = FALSE;
tree_column->clickable = FALSE;
tree_column->dirty = TRUE;
tree_column->sort_order = GTK_SORT_ASCENDING;
tree_column->show_sort_indicator = FALSE;
tree_column->property_changed_signal = 0;
tree_column->sort_clicked_signal = 0;
tree_column->sort_column_changed_signal = 0;
tree_column->sort_column_id = -1;
tree_column->reorderable = FALSE;
tree_column->maybe_reordered = FALSE;
tree_column->fixed_width = 1;
tree_column->use_resized_width = FALSE;
tree_column->title = g_strdup ("");
}
static void
gtk_tree_view_column_finalize (GObject *object)
{
GtkTreeViewColumn *tree_column = (GtkTreeViewColumn *) object;
GList *list;
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
if (info->destroy)
{
GtkDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
gtk_tree_view_column_clear_attributes_by_info (tree_column, info);
g_object_unref (info->cell);
g_free (info);
}
g_free (tree_column->title);
g_list_free (tree_column->cell_list);
if (tree_column->child)
g_object_unref (tree_column->child);
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;
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;
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_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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* Implementation of GtkCellLayout interface
*/
static void
gtk_tree_view_column_cell_layout_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkTreeViewColumn *column;
GtkTreeViewColumnCellInfo *cell_info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
g_return_if_fail (! gtk_tree_view_column_get_cell_info (column, cell));
g_object_ref_sink (cell);
cell_info = g_new0 (GtkTreeViewColumnCellInfo, 1);
cell_info->cell = cell;
cell_info->expand = expand ? TRUE : FALSE;
cell_info->pack = GTK_PACK_START;
cell_info->has_focus = 0;
cell_info->attributes = NULL;
column->cell_list = g_list_append (column->cell_list, cell_info);
}
static void
gtk_tree_view_column_cell_layout_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkTreeViewColumn *column;
GtkTreeViewColumnCellInfo *cell_info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
g_return_if_fail (! gtk_tree_view_column_get_cell_info (column, cell));
g_object_ref_sink (cell);
cell_info = g_new0 (GtkTreeViewColumnCellInfo, 1);
cell_info->cell = cell;
cell_info->expand = expand ? TRUE : FALSE;
cell_info->pack = GTK_PACK_END;
cell_info->has_focus = 0;
cell_info->attributes = NULL;
column->cell_list = g_list_append (column->cell_list, cell_info);
}
static void
gtk_tree_view_column_cell_layout_clear (GtkCellLayout *cell_layout)
{
GtkTreeViewColumn *column;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
while (column->cell_list)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *)column->cell_list->data;
gtk_tree_view_column_cell_layout_clear_attributes (cell_layout, info->cell);
g_object_unref (info->cell);
g_free (info);
column->cell_list = g_list_delete_link (column->cell_list,
column->cell_list);
}
}
static void
gtk_tree_view_column_cell_layout_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GtkTreeViewColumn *tree_column;
GtkTreeViewColumnCellInfo *info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
tree_column = GTK_TREE_VIEW_COLUMN (cell_layout);
info = gtk_tree_view_column_get_cell_info (tree_column, cell);
g_return_if_fail (info != NULL);
info->attributes = g_slist_prepend (info->attributes, GINT_TO_POINTER (column));
info->attributes = g_slist_prepend (info->attributes, g_strdup (attribute));
if (tree_column->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
static void
gtk_tree_view_column_cell_layout_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkTreeViewColumn *column;
GtkTreeViewColumnCellInfo *info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
info = gtk_tree_view_column_get_cell_info (column, cell);
g_return_if_fail (info != NULL);
if (info->destroy)
{
GDestroyNotify d = info->destroy;
info->destroy = NULL;
d (info->func_data);
}
info->func = (GtkTreeCellDataFunc)func;
info->func_data = func_data;
info->destroy = destroy;
if (column->tree_view)
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
static void
gtk_tree_view_column_cell_layout_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell_renderer)
{
GtkTreeViewColumn *column;
GtkTreeViewColumnCellInfo *info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
info = gtk_tree_view_column_get_cell_info (column, cell_renderer);
if (info)
gtk_tree_view_column_clear_attributes_by_info (column, info);
}
static void
gtk_tree_view_column_cell_layout_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position)
{
GList *link;
GtkTreeViewColumn *column;
GtkTreeViewColumnCellInfo *info;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (cell_layout));
column = GTK_TREE_VIEW_COLUMN (cell_layout);
info = gtk_tree_view_column_get_cell_info (column, cell);
g_return_if_fail (info != NULL);
g_return_if_fail (position >= 0);
link = g_list_find (column->cell_list, info);
g_return_if_fail (link != NULL);
column->cell_list = g_list_remove_link (column->cell_list, link);
column->cell_list = g_list_insert (column->cell_list, info, position);
if (column->tree_view)
gtk_widget_queue_draw (column->tree_view);
}
static void
gtk_tree_view_column_clear_attributes_by_info (GtkTreeViewColumn *tree_column,
GtkTreeViewColumnCellInfo *info)
{
GSList *list;
list = info->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (info->attributes);
info->attributes = NULL;
if (tree_column->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
/* Helper functions
*/
/* Button handling code
*/
static void
gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
{
GtkTreeView *tree_view;
GtkWidget *child;
GtkWidget *hbox;
tree_view = (GtkTreeView *) tree_column->tree_view;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_column->button == NULL);
gtk_widget_push_composite_child ();
tree_column->button = gtk_button_new ();
gtk_widget_add_events (tree_column->button, GDK_POINTER_MOTION_MASK);
gtk_widget_pop_composite_child ();
/* make sure we own a reference to it as well. */
if (tree_view->priv->header_window)
gtk_widget_set_parent_window (tree_column->button, tree_view->priv->header_window);
gtk_widget_set_parent (tree_column->button, GTK_WIDGET (tree_view));
g_signal_connect (tree_column->button, "event",
G_CALLBACK (gtk_tree_view_column_button_event),
tree_column);
g_signal_connect (tree_column->button, "clicked",
G_CALLBACK (gtk_tree_view_column_button_clicked),
tree_column);
tree_column->alignment = gtk_alignment_new (tree_column->xalign, 0.5, 0.0, 0.0);
hbox = gtk_hbox_new (FALSE, 2);
tree_column->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
if (tree_column->child)
child = tree_column->child;
else
{
child = gtk_label_new (tree_column->title);
gtk_widget_show (child);
}
g_signal_connect (child, "mnemonic_activate",
G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
tree_column);
if (tree_column->xalign <= 0.5)
gtk_box_pack_end (GTK_BOX (hbox), tree_column->arrow, FALSE, FALSE, 0);
else
gtk_box_pack_start (GTK_BOX (hbox), tree_column->arrow, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), tree_column->alignment, TRUE, TRUE, 0);
gtk_container_add (GTK_CONTAINER (tree_column->alignment), child);
gtk_container_add (GTK_CONTAINER (tree_column->button), hbox);
gtk_widget_show (hbox);
gtk_widget_show (tree_column->alignment);
gtk_tree_view_column_update_button (tree_column);
}
static void
gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
{
gint sort_column_id = -1;
GtkWidget *hbox;
GtkWidget *alignment;
GtkWidget *arrow;
GtkWidget *current_child;
GtkArrowType arrow_type = GTK_ARROW_NONE;
GtkTreeModel *model;
if (tree_column->tree_view)
model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_column->tree_view));
else
model = NULL;
/* Create a button if necessary */
if (tree_column->visible &&
tree_column->button == NULL &&
tree_column->tree_view &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
gtk_tree_view_column_create_button (tree_column);
if (! tree_column->button)
return;
hbox = GTK_BIN (tree_column->button)->child;
alignment = tree_column->alignment;
arrow = tree_column->arrow;
current_child = GTK_BIN (alignment)->child;
/* Set up the actual button */
gtk_alignment_set (GTK_ALIGNMENT (alignment), tree_column->xalign,
0.5, 0.0, 0.0);
if (tree_column->child)
{
if (current_child != tree_column->child)
{
gtk_container_remove (GTK_CONTAINER (alignment),
current_child);
gtk_container_add (GTK_CONTAINER (alignment),
tree_column->child);
}
}
else
{
if (current_child == NULL)
{
current_child = gtk_label_new (NULL);
gtk_widget_show (current_child);
gtk_container_add (GTK_CONTAINER (alignment),
current_child);
}
g_return_if_fail (GTK_IS_LABEL (current_child));
if (tree_column->title)
gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
tree_column->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 (tree_column->show_sort_indicator
|| (sort_column_id >= 0 && sort_column_id == tree_column->sort_column_id))
{
gboolean alternative;
g_object_get (gtk_widget_get_settings (tree_column->tree_view),
"gtk-alternative-sort-arrows", &alternative,
NULL);
switch (tree_column->sort_order)
{
case GTK_SORT_ASCENDING:
arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
break;
case GTK_SORT_DESCENDING:
arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
break;
default:
g_warning (G_STRLOC": bad sort order");
break;
}
}
gtk_arrow_set (GTK_ARROW (arrow),
arrow_type,
GTK_SHADOW_IN);
/* 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
*/
g_object_ref (arrow);
gtk_container_remove (GTK_CONTAINER (hbox), arrow);
if (tree_column->xalign <= 0.5)
{
gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
}
else
{
gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
/* move it to the front */
gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
}
g_object_unref (arrow);
if (tree_column->show_sort_indicator
|| (GTK_IS_TREE_SORTABLE (model) && tree_column->sort_column_id >= 0))
gtk_widget_show (arrow);
else
gtk_widget_hide (arrow);
/* 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 (tree_column->button &&
tree_column->tree_view != NULL &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
{
if (tree_column->visible)
{
gtk_widget_show_now (tree_column->button);
if (tree_column->window)
{
if (tree_column->resizable)
{
gdk_window_show (tree_column->window);
gdk_window_raise (tree_column->window);
}
else
{
gdk_window_hide (tree_column->window);
}
}
}
else
{
gtk_widget_hide (tree_column->button);
if (tree_column->window)
gdk_window_hide (tree_column->window);
}
}
if (tree_column->reorderable || tree_column->clickable)
{
GTK_WIDGET_SET_FLAGS (tree_column->button, GTK_CAN_FOCUS);
}
else
{
GTK_WIDGET_UNSET_FLAGS (tree_column->button, GTK_CAN_FOCUS);
if (GTK_WIDGET_HAS_FOCUS (tree_column->button))
{
GtkWidget *toplevel = gtk_widget_get_toplevel (tree_column->tree_view);
if (GTK_WIDGET_TOPLEVEL (toplevel))
{
gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
}
}
}
/* Queue a resize on the assumption that we always want to catch all changes
* and columns don't change all that often.
*/
if (GTK_WIDGET_REALIZED (tree_column->tree_view))
gtk_widget_queue_resize (tree_column->tree_view);
}
/* Button signal handlers
*/
static gint
gtk_tree_view_column_button_event (GtkWidget *widget,
GdkEvent *event,
gpointer data)
{
GtkTreeViewColumn *column = (GtkTreeViewColumn *) data;
g_return_val_if_fail (event != NULL, FALSE);
if (event->type == GDK_BUTTON_PRESS &&
column->reorderable &&
((GdkEventButton *)event)->button == 1)
{
column->maybe_reordered = TRUE;
gdk_window_get_pointer (GTK_BUTTON (widget)->event_window,
&column->drag_x,
&column->drag_y,
NULL);
gtk_widget_grab_focus (widget);
}
if (event->type == GDK_BUTTON_RELEASE ||
event->type == GDK_LEAVE_NOTIFY)
column->maybe_reordered = FALSE;
if (event->type == GDK_MOTION_NOTIFY &&
column->maybe_reordered &&
(gtk_drag_check_threshold (widget,
column->drag_x,
column->drag_y,
(gint) ((GdkEventMotion *)event)->x,
(gint) ((GdkEventMotion *)event)->y)))
{
column->maybe_reordered = FALSE;
_gtk_tree_view_column_start_drag (GTK_TREE_VIEW (column->tree_view), column);
return TRUE;
}
if (column->clickable == FALSE)
{
switch (event->type)
{
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
case GDK_MOTION_NOTIFY:
case GDK_BUTTON_RELEASE:
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
return TRUE;
default:
return FALSE;
}
}
return FALSE;
}
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;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
GTK_TREE_VIEW (column->tree_view)->priv->focus_column = column;
if (column->clickable)
gtk_button_clicked (GTK_BUTTON (column->button));
else if (GTK_WIDGET_CAN_FOCUS (column->button))
gtk_widget_grab_focus (column->button);
else
gtk_widget_grab_focus (column->tree_view);
return TRUE;
}
static void
gtk_tree_view_model_sort_column_changed (GtkTreeSortable *sortable,
GtkTreeViewColumn *column)
{
gint sort_column_id;
GtkSortType order;
if (gtk_tree_sortable_get_sort_column_id (sortable,
&sort_column_id,
&order))
{
if (sort_column_id == column->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)
{
gint sort_column_id;
GtkSortType order;
gboolean has_sort_column;
gboolean has_default_sort_func;
g_return_if_fail (tree_column->tree_view != NULL);
has_sort_column =
gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
&sort_column_id,
&order);
has_default_sort_func =
gtk_tree_sortable_has_default_sort_func (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model));
if (has_sort_column &&
sort_column_id == tree_column->sort_column_id)
{
if (order == GTK_SORT_ASCENDING)
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
tree_column->sort_column_id,
GTK_SORT_DESCENDING);
else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
GTK_SORT_ASCENDING);
else
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
tree_column->sort_column_id,
GTK_SORT_ASCENDING);
}
else
{
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
tree_column->sort_column_id,
GTK_SORT_ASCENDING);
}
}
static void
gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
{
GtkTreeModel *model;
if (tree_column->tree_view == NULL)
return;
model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_column->tree_view));
if (model == NULL)
return;
if (GTK_IS_TREE_SORTABLE (model) &&
tree_column->sort_column_id != -1)
{
gint real_sort_column_id;
GtkSortType real_order;
if (tree_column->sort_column_changed_signal == 0)
tree_column->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 == tree_column->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);
}
}
}
/* Exported Private Functions.
* These should only be called by gtktreeview.c or gtktreeviewcolumn.c
*/
void
_gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
{
GtkTreeView *tree_view;
GdkWindowAttr attr;
guint attributes_mask;
gboolean rtl;
tree_view = (GtkTreeView *)column->tree_view;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
g_return_if_fail (tree_view->priv->header_window != NULL);
g_return_if_fail (column->button != NULL);
gtk_widget_set_parent_window (column->button, tree_view->priv->header_window);
if (column->visible)
gtk_widget_show (column->button);
attr.window_type = GDK_WINDOW_CHILD;
attr.wclass = GDK_INPUT_ONLY;
attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attr.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
(GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_KEY_PRESS_MASK);
attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
attr.cursor = gdk_cursor_new_for_display (gdk_drawable_get_display (tree_view->priv->header_window),
GDK_SB_H_DOUBLE_ARROW);
attr.y = 0;
attr.width = TREE_VIEW_DRAG_WIDTH;
attr.height = tree_view->priv->header_height;
attr.x = (column->button->allocation.x + (rtl ? 0 : column->button->allocation.width)) - 3;
column->window = gdk_window_new (tree_view->priv->header_window,
&attr, attributes_mask);
gdk_window_set_user_data (column->window, tree_view);
gtk_tree_view_column_update_button (column);
gdk_cursor_unref (attr.cursor);
}
void
_gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
{
g_return_if_fail (column != NULL);
g_return_if_fail (column->window != NULL);
gdk_window_set_user_data (column->window, NULL);
gdk_window_destroy (column->window);
column->window = NULL;
}
void
_gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
GtkTreeModel *old_model)
{
if (column->sort_column_changed_signal)
{
g_signal_handler_disconnect (old_model,
column->sort_column_changed_signal);
column->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)
{
g_assert (column->tree_view == NULL);
column->tree_view = GTK_WIDGET (tree_view);
gtk_tree_view_column_create_button (column);
column->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)
{
if (column->tree_view && column->button)
{
gtk_container_remove (GTK_CONTAINER (column->tree_view), column->button);
}
if (column->property_changed_signal)
{
g_signal_handler_disconnect (column->tree_view, column->property_changed_signal);
column->property_changed_signal = 0;
}
if (column->sort_column_changed_signal)
{
g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (column->tree_view)),
column->sort_column_changed_signal);
column->sort_column_changed_signal = 0;
}
column->tree_view = NULL;
column->button = NULL;
}
gboolean
_gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
{
GList *list;
for (list = column->cell_list; list; list = list->next)
if (((GtkTreeViewColumnCellInfo *)list->data)->cell->mode ==
GTK_CELL_RENDERER_MODE_EDITABLE)
return TRUE;
return FALSE;
}
/* gets cell being edited */
GtkCellRenderer *
_gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
{
GList *list;
for (list = column->cell_list; list; list = list->next)
if (((GtkTreeViewColumnCellInfo *)list->data)->in_editing_mode)
return ((GtkTreeViewColumnCellInfo *)list->data)->cell;
return NULL;
}
gint
_gtk_tree_view_column_count_special_cells (GtkTreeViewColumn *column)
{
gint i = 0;
GList *list;
for (list = column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *cellinfo = list->data;
if ((cellinfo->cell->mode == GTK_CELL_RENDERER_MODE_EDITABLE ||
cellinfo->cell->mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE) &&
cellinfo->cell->visible)
i++;
}
return i;
}
GtkCellRenderer *
_gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
gint x)
{
GList *list;
gint current_x = 0;
list = gtk_tree_view_column_cell_first (column);
for (; list; list = gtk_tree_view_column_cell_next (column, list))
{
GtkTreeViewColumnCellInfo *cellinfo = list->data;
if (current_x <= x && x <= current_x + cellinfo->real_width)
return cellinfo->cell;
current_x += cellinfo->real_width;
}
return NULL;
}
/* Public Functions */
/**
* gtk_tree_view_column_new:
*
* Creates a new #GtkTreeViewColumn.
*
* Return value: 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_attributes:
* @title: The title to set the header to.
* @cell: The #GtkCellRenderer.
* @Varargs: 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:
* <informalexample><programlisting>
* 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);
* }
* </programlisting></informalexample>
*
* Return value: A newly created #GtkTreeViewColumn.
**/
GtkTreeViewColumn *
gtk_tree_view_column_new_with_attributes (const gchar *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;
}
static GtkTreeViewColumnCellInfo *
gtk_tree_view_column_get_cell_info (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer)
{
GList *list;
for (list = tree_column->cell_list; list; list = list->next)
if (((GtkTreeViewColumnCellInfo *)list->data)->cell == cell_renderer)
return (GtkTreeViewColumnCellInfo *) list->data;
return NULL;
}
/**
* 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_get_cell_renderers:
* @tree_column: A #GtkTreeViewColumn
*
* Returns a newly-allocated #GList of all the cell renderers in the column,
* in no particular order. The list must be freed with g_list_free().
*
* Return value: A list of #GtkCellRenderers
**/
GList *
gtk_tree_view_column_get_cell_renderers (GtkTreeViewColumn *tree_column)
{
GList *retval = NULL, *list;
g_return_val_if_fail (tree_column != NULL, NULL);
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *)list->data;
retval = g_list_append (retval, info->cell);
}
return retval;
}
static GList *
gtk_tree_view_column_cell_layout_get_cells (GtkCellLayout *layout)
{
return gtk_tree_view_column_get_cell_renderers (GTK_TREE_VIEW_COLUMN (layout));
}
/**
* 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 gchar *attribute,
gint 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)
{
gchar *attribute;
gint column;
attribute = va_arg (args, gchar *);
gtk_tree_view_column_clear_attributes (tree_column, cell_renderer);
while (attribute != NULL)
{
column = va_arg (args, gint);
gtk_tree_view_column_add_attribute (tree_column, cell_renderer, attribute, column);
attribute = va_arg (args, gchar *);
}
}
/**
* gtk_tree_view_column_set_attributes:
* @tree_column: A #GtkTreeViewColumn.
* @cell_renderer: the #GtkCellRenderer we're setting the attributes of
* @Varargs: 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));
g_return_if_fail (gtk_tree_view_column_get_cell_info (tree_column, 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: The #GtkTreeViewColumnFunc to use.
* @func_data: The user data for @func.
* @destroy: The destroy notification for @func_data
*
* Sets the #GtkTreeViewColumnFunc 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,
GtkDestroyNotify 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,
gint spacing)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (spacing >= 0);
if (tree_column->spacing == spacing)
return;
tree_column->spacing = spacing;
if (tree_column->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
/**
* gtk_tree_view_column_get_spacing:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the spacing of @tree_column.
*
* Return value: the spacing of @tree_column.
**/
gint
gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->spacing;
}
/* 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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
visible = !! visible;
if (tree_column->visible == visible)
return;
tree_column->visible = visible;
if (tree_column->visible)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "visible");
}
/**
* gtk_tree_view_column_get_visible:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns %TRUE if @tree_column is visible.
*
* Return value: 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->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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
resizable = !! resizable;
if (tree_column->resizable == resizable)
return;
tree_column->resizable = resizable;
if (resizable && tree_column->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 (G_OBJECT (tree_column), "resizable");
}
/**
* gtk_tree_view_column_get_resizable:
* @tree_column: A #GtkTreeViewColumn
*
* Returns %TRUE if the @tree_column can be resized by the end user.
*
* Return value: %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->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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (type == tree_column->column_type)
return;
if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
gtk_tree_view_column_set_resizable (tree_column, FALSE);
#if 0
/* I was clearly on crack when I wrote this. I'm not sure what's supposed to
* be below so I'll leave it until I figure it out.
*/
if (tree_column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE &&
tree_column->requested_width != -1)
{
gtk_tree_view_column_set_sizing (tree_column, tree_column->requested_width);
}
#endif
tree_column->column_type = type;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "sizing");
}
/**
* gtk_tree_view_column_get_sizing:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current type of @tree_column.
*
* Return value: 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->column_type;
}
/**
* gtk_tree_view_column_get_width:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current size of @tree_column in pixels.
*
* Return value: The current width of @tree_column.
**/
gint
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->width;
}
/**
* gtk_tree_view_column_set_fixed_width:
* @tree_column: A #GtkTreeViewColumn.
* @fixed_width: The size to set @tree_column to. Must be greater than 0.
*
* Sets the size of the column in pixels. This is meaningful only if the sizing
* type is #GTK_TREE_VIEW_COLUMN_FIXED. The size of the column is clamped to
* the min/max width for the column. Please note that the min/max width of the
* column doesn't actually affect the "fixed_width" property of the widget, just
* the actual size when displayed.
**/
void
gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
gint fixed_width)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (fixed_width > 0);
tree_column->fixed_width = fixed_width;
tree_column->use_resized_width = FALSE;
if (tree_column->tree_view &&
GTK_WIDGET_REALIZED (tree_column->tree_view) &&
tree_column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
{
gtk_widget_queue_resize (tree_column->tree_view);
}
g_object_notify (G_OBJECT (tree_column), "fixed-width");
}
/**
* gtk_tree_view_column_get_fixed_width:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the fixed width of the column. This value is only meaning may not be
* the actual width of the column on the screen, just what is requested.
*
* Return value: the fixed width of the column
**/
gint
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->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,
gint min_width)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (min_width >= -1);
if (min_width == tree_column->min_width)
return;
if (tree_column->visible &&
tree_column->tree_view != NULL &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
{
if (min_width > tree_column->width)
gtk_widget_queue_resize (tree_column->tree_view);
}
tree_column->min_width = min_width;
g_object_freeze_notify (G_OBJECT (tree_column));
if (tree_column->max_width != -1 && tree_column->max_width < min_width)
{
tree_column->max_width = min_width;
g_object_notify (G_OBJECT (tree_column), "max-width");
}
g_object_notify (G_OBJECT (tree_column), "min-width");
g_object_thaw_notify (G_OBJECT (tree_column));
if (tree_column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_autosize (GTK_TREE_VIEW (tree_column->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.
*
* Return value: The minimum width of the @tree_column.
**/
gint
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->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,
gint max_width)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (max_width >= -1);
if (max_width == tree_column->max_width)
return;
if (tree_column->visible &&
tree_column->tree_view != NULL &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
{
if (max_width != -1 && max_width < tree_column->width)
gtk_widget_queue_resize (tree_column->tree_view);
}
tree_column->max_width = max_width;
g_object_freeze_notify (G_OBJECT (tree_column));
if (max_width != -1 && max_width < tree_column->min_width)
{
tree_column->min_width = max_width;
g_object_notify (G_OBJECT (tree_column), "min-width");
}
g_object_notify (G_OBJECT (tree_column), "max-width");
g_object_thaw_notify (G_OBJECT (tree_column));
if (tree_column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_autosize (GTK_TREE_VIEW (tree_column->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.
*
* Return value: The maximum width of the @tree_column.
**/
gint
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->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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (tree_column->visible &&
tree_column->button &&
tree_column->clickable)
gtk_button_clicked (GTK_BUTTON (tree_column->button));
}
/**
* 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 gchar *title)
{
gchar *new_title;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
new_title = g_strdup (title);
g_free (tree_column->title);
tree_column->title = new_title;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "title");
}
/**
* gtk_tree_view_column_get_title:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the title of the widget.
*
* Return value: the title of the column. This string should not be
* modified or freed.
**/
G_CONST_RETURN gchar *
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->title;
}
/**
* gtk_tree_view_column_set_expand:
* @tree_column: A #GtkTreeViewColumn
* @expand: %TRUE if the column should take available extra space, %FALSE if not
*
* 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.
*
* Since: 2.4
**/
void
gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
gboolean expand)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
expand = expand?TRUE:FALSE;
if (tree_column->expand == expand)
return;
tree_column->expand = expand;
if (tree_column->visible &&
tree_column->tree_view != NULL &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
{
gtk_widget_queue_resize (tree_column->tree_view);
}
g_object_notify (G_OBJECT (tree_column), "expand");
}
/**
* gtk_tree_view_column_get_expand:
* @tree_column: a #GtkTreeViewColumn
*
* Return %TRUE if the column expands to take any available space.
*
* Return value: %TRUE, if the column expands
*
* Since: 2.4
**/
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->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 @active 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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
clickable = !! clickable;
if (tree_column->clickable == clickable)
return;
tree_column->clickable = clickable;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "clickable");
}
/**
* gtk_tree_view_column_get_clickable:
* @tree_column: a #GtkTreeViewColumn
*
* Returns %TRUE if the user can click on the header for the column.
*
* Return value: %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->clickable;
}
/**
* gtk_tree_view_column_set_widget:
* @tree_column: A #GtkTreeViewColumn.
* @widget: 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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
if (widget)
g_object_ref_sink (widget);
if (tree_column->child)
g_object_unref (tree_column->child);
tree_column->child = widget;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "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.
*
* Return value: 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->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,
gfloat xalign)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
xalign = CLAMP (xalign, 0.0, 1.0);
if (tree_column->xalign == xalign)
return;
tree_column->xalign = xalign;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "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.
*
* Return value: The current alignent of @tree_column.
**/
gfloat
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->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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
/* if (reorderable)
gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
if (tree_column->reorderable == (reorderable?TRUE:FALSE))
return;
tree_column->reorderable = (reorderable?TRUE:FALSE);
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "reorderable");
}
/**
* gtk_tree_view_column_get_reorderable:
* @tree_column: A #GtkTreeViewColumn
*
* Returns %TRUE if the @tree_column can be reordered by the user.
*
* Return value: %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->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,
gint sort_column_id)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (sort_column_id >= -1);
if (tree_column->sort_column_id == sort_column_id)
return;
tree_column->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 (tree_column->tree_view));
if (tree_column->sort_clicked_signal)
{
g_signal_handler_disconnect (tree_column, tree_column->sort_clicked_signal);
tree_column->sort_clicked_signal = 0;
}
if (tree_column->sort_column_changed_signal)
{
g_signal_handler_disconnect (model, tree_column->sort_column_changed_signal);
tree_column->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);
return;
}
gtk_tree_view_column_set_clickable (tree_column, TRUE);
if (! tree_column->sort_clicked_signal)
tree_column->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);
}
/**
* 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().
*
* Return value: the current @sort_column_id for this column, or -1 if
* this column can't be used for sorting.
**/
gint
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->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->show_sort_indicator)
return;
tree_column->show_sort_indicator = setting;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "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().
*
* Return value: 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->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 <emphasis>does not</emphasis> 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() 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->sort_order)
return;
tree_column->sort_order = order;
gtk_tree_view_column_update_button (tree_column);
g_object_notify (G_OBJECT (tree_column), "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().
*
* Return value: 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->sort_order;
}
/**
* gtk_tree_view_column_cell_set_cell_data:
* @tree_column: A #GtkTreeViewColumn.
* @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
* @iter: The #GtkTreeIter to 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)
{
GSList *list;
GValue value = { 0, };
GList *cell_list;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (tree_model == NULL)
return;
for (cell_list = tree_column->cell_list; cell_list; cell_list = cell_list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) cell_list->data;
GObject *cell = (GObject *) info->cell;
list = info->attributes;
g_object_freeze_notify (cell);
if (info->cell->is_expander != is_expander)
g_object_set (cell, "is-expander", is_expander, NULL);
if (info->cell->is_expanded != is_expanded)
g_object_set (cell, "is-expanded", is_expanded, NULL);
while (list && list->next)
{
gtk_tree_model_get_value (tree_model, iter,
GPOINTER_TO_INT (list->next->data),
&value);
g_object_set_property (cell, (gchar *) list->data, &value);
g_value_unset (&value);
list = list->next->next;
}
if (info->func)
(* info->func) (tree_column, info->cell, tree_model, iter, info->func_data);
g_object_thaw_notify (G_OBJECT (info->cell));
}
}
/**
* gtk_tree_view_column_cell_get_size:
* @tree_column: A #GtkTreeViewColumn.
* @cell_area: The area a cell in the column will be allocated, or %NULL
* @x_offset: location to return x offset of a cell relative to @cell_area, or %NULL
* @y_offset: location to return y offset of a cell relative to @cell_area, or %NULL
* @width: location to return width needed to render a cell, or %NULL
* @height: 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,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
GList *list;
gboolean first_cell = TRUE;
gint focus_line_width;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (height)
* height = 0;
if (width)
* width = 0;
gtk_widget_style_get (tree_column->tree_view, "focus-line-width", &focus_line_width, NULL);
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
gboolean visible;
gint new_height = 0;
gint new_width = 0;
g_object_get (info->cell, "visible", &visible, NULL);
if (visible == FALSE)
continue;
if (first_cell == FALSE && width)
*width += tree_column->spacing;
gtk_cell_renderer_get_size (info->cell,
tree_column->tree_view,
cell_area,
x_offset,
y_offset,
&new_width,
&new_height);
if (height)
* height = MAX (*height, new_height + focus_line_width * 2);
info->requested_width = MAX (info->requested_width, new_width + focus_line_width * 2);
if (width)
* width += info->requested_width;
first_cell = FALSE;
}
}
/* rendering, event handling and rendering focus are somewhat complicated, and
* quite a bit of code. Rather than duplicate them, we put them together to
* keep the code in one place.
*
* To better understand what's going on, check out
* docs/tree-column-sizing.png
*/
enum {
CELL_ACTION_RENDER,
CELL_ACTION_FOCUS,
CELL_ACTION_EVENT
};
static gboolean
gtk_tree_view_column_cell_process_action (GtkTreeViewColumn *tree_column,
GdkWindow *window,
GdkRectangle *background_area,
GdkRectangle *cell_area,
guint flags,
gint action,
GdkRectangle *expose_area, /* RENDER */
GdkRectangle *focus_rectangle, /* FOCUS */
GtkCellEditable **editable_widget, /* EVENT */
GdkEvent *event, /* EVENT */
gchar *path_string) /* EVENT */
{
GList *list;
GdkRectangle real_cell_area;
GdkRectangle real_background_area;
GdkRectangle real_expose_area = *cell_area;
gint depth = 0;
gint expand_cell_count = 0;
gint full_requested_width = 0;
gint extra_space;
gint min_x, min_y, max_x, max_y;
gint focus_line_width;
gint special_cells;
gint horizontal_separator;
gboolean cursor_row = FALSE;
gboolean first_cell = TRUE;
gboolean rtl;
/* If we have rtl text, we need to transform our areas */
GdkRectangle rtl_cell_area;
GdkRectangle rtl_background_area;
min_x = G_MAXINT;
min_y = G_MAXINT;
max_x = 0;
max_y = 0;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_column->tree_view)) == GTK_TEXT_DIR_RTL);
special_cells = _gtk_tree_view_column_count_special_cells (tree_column);
if (special_cells > 1 && action == CELL_ACTION_FOCUS)
{
GtkTreeViewColumnCellInfo *info = NULL;
gboolean found_has_focus = FALSE;
/* one should have focus */
for (list = tree_column->cell_list; list; list = list->next)
{
info = list->data;
if (info && info->has_focus)
{
found_has_focus = TRUE;
break;
}
}
if (!found_has_focus)
{
/* give the first one focus */
info = gtk_tree_view_column_cell_first (tree_column)->data;
info->has_focus = TRUE;
}
}
cursor_row = flags & GTK_CELL_RENDERER_FOCUSED;
gtk_widget_style_get (GTK_WIDGET (tree_column->tree_view),
"focus-line-width", &focus_line_width,
"horizontal-separator", &horizontal_separator,
NULL);
real_cell_area = *cell_area;
real_background_area = *background_area;
if (rtl)
depth = real_background_area.width - real_cell_area.width - horizontal_separator/2;
else
depth = real_cell_area.x - real_background_area.x - horizontal_separator/2;
real_cell_area.x += focus_line_width;
real_cell_area.y += focus_line_width;
real_cell_area.height -= 2 * focus_line_width;
/* Find out how much extra space we have to allocate */
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *)list->data;
if (! info->cell->visible)
continue;
if (info->expand == TRUE)
expand_cell_count ++;
full_requested_width += info->requested_width;
if (!first_cell)
full_requested_width += tree_column->spacing;
first_cell = FALSE;
}
extra_space = cell_area->width - full_requested_width;
if (extra_space < 0)
extra_space = 0;
else if (extra_space > 0 && expand_cell_count > 0)
extra_space /= expand_cell_count;
/* iterate list for GTK_PACK_START cells */
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
if (info->pack == GTK_PACK_END)
continue;
if (! info->cell->visible)
continue;
if ((info->has_focus || special_cells == 1) && cursor_row)
flags |= GTK_CELL_RENDERER_FOCUSED;
else
flags &= ~GTK_CELL_RENDERER_FOCUSED;
info->real_width = info->requested_width + (info->expand?extra_space:0);
/* We constrain ourselves to only the width available */
if (real_cell_area.x - focus_line_width + info->real_width > cell_area->x + cell_area->width)
{
info->real_width = cell_area->x + cell_area->width - real_cell_area.x;
}
if (real_cell_area.x > cell_area->x + cell_area->width)
break;
real_cell_area.width = info->real_width;
real_cell_area.width -= 2 * focus_line_width;
if (list->next)
{
real_background_area.width = info->real_width + depth;
}
else
{
/* fill the rest of background for the last cell */
real_background_area.width = background_area->x + background_area->width - real_background_area.x;
}
rtl_cell_area = real_cell_area;
rtl_background_area = real_background_area;
if (rtl)
{
rtl_cell_area.x = cell_area->x + cell_area->width - (real_cell_area.x - cell_area->x) - real_cell_area.width;
rtl_background_area.x = background_area->x + background_area->width - (real_background_area.x - background_area->x) - real_background_area.width;
}
/* RENDER */
if (action == CELL_ACTION_RENDER)
{
gtk_cell_renderer_render (info->cell,
window,
tree_column->tree_view,
&rtl_background_area,
&rtl_cell_area,
&real_expose_area,
flags);
}
/* FOCUS */
else if (action == CELL_ACTION_FOCUS)
{
gint x_offset, y_offset, width, height;
gtk_cell_renderer_get_size (info->cell,
tree_column->tree_view,
&rtl_cell_area,
&x_offset, &y_offset,
&width, &height);
if (special_cells > 1)
{
if (info->has_focus)
{
min_x = rtl_cell_area.x + x_offset;
max_x = min_x + width;
min_y = rtl_cell_area.y + y_offset;
max_y = min_y + height;
}
}
else
{
if (min_x > (rtl_cell_area.x + x_offset))
min_x = rtl_cell_area.x + x_offset;
if (max_x < rtl_cell_area.x + x_offset + width)
max_x = rtl_cell_area.x + x_offset + width;
if (min_y > (rtl_cell_area.y + y_offset))
min_y = rtl_cell_area.y + y_offset;
if (max_y < rtl_cell_area.y + y_offset + height)
max_y = rtl_cell_area.y + y_offset + height;
}
}
/* EVENT */
else if (action == CELL_ACTION_EVENT)
{
gboolean try_event = FALSE;
if (event)
{
if (special_cells == 1)
{
/* only 1 activatable cell -> whole column can activate */
if (cell_area->x <= ((GdkEventButton *)event)->x &&
cell_area->x + cell_area->width > ((GdkEventButton *)event)->x)
try_event = TRUE;
}
else if (rtl_cell_area.x <= ((GdkEventButton *)event)->x &&
rtl_cell_area.x + rtl_cell_area.width > ((GdkEventButton *)event)->x)
/* only activate cell if the user clicked on an individual
* cell
*/
try_event = TRUE;
}
else if (special_cells > 1 && info->has_focus)
try_event = TRUE;
else if (special_cells == 1)
try_event = TRUE;
if (try_event)
{
gboolean visible, mode;
g_object_get (info->cell,
"visible", &visible,
"mode", &mode,
NULL);
if (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
{
if (gtk_cell_renderer_activate (info->cell,
event,
tree_column->tree_view,
path_string,
&rtl_background_area,
&rtl_cell_area,
flags))
{
flags &= ~GTK_CELL_RENDERER_FOCUSED;
return TRUE;
}
}
else if (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE)
{
*editable_widget =
gtk_cell_renderer_start_editing (info->cell,
event,
tree_column->tree_view,
path_string,
&rtl_background_area,
&rtl_cell_area,
flags);
if (*editable_widget != NULL)
{
g_return_val_if_fail (GTK_IS_CELL_EDITABLE (*editable_widget), FALSE);
info->in_editing_mode = TRUE;
gtk_tree_view_column_focus_cell (tree_column, info->cell);
flags &= ~GTK_CELL_RENDERER_FOCUSED;
return TRUE;
}
}
}
}
flags &= ~GTK_CELL_RENDERER_FOCUSED;
real_cell_area.x += (real_cell_area.width + 2 * focus_line_width + tree_column->spacing);
real_background_area.x += real_background_area.width + tree_column->spacing;
/* Only needed for first cell */
depth = 0;
}
/* iterate list for PACK_END cells */
for (list = g_list_last (tree_column->cell_list); list; list = list->prev)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
if (info->pack == GTK_PACK_START)
continue;
if (! info->cell->visible)
continue;
if ((info->has_focus || special_cells == 1) && cursor_row)
flags |= GTK_CELL_RENDERER_FOCUSED;
else
flags &= ~GTK_CELL_RENDERER_FOCUSED;
info->real_width = info->requested_width + (info->expand?extra_space:0);
/* We constrain ourselves to only the width available */
if (real_cell_area.x - focus_line_width + info->real_width > cell_area->x + cell_area->width)
{
info->real_width = cell_area->x + cell_area->width - real_cell_area.x;
}
if (real_cell_area.x > cell_area->x + cell_area->width)
break;
real_cell_area.width = info->real_width;
real_cell_area.width -= 2 * focus_line_width;
real_background_area.width = info->real_width + depth;
rtl_cell_area = real_cell_area;
rtl_background_area = real_background_area;
if (rtl)
{
rtl_cell_area.x = cell_area->x + cell_area->width - (real_cell_area.x - cell_area->x) - real_cell_area.width;
rtl_background_area.x = background_area->x + background_area->width - (real_background_area.x - background_area->x) - real_background_area.width;
}
/* RENDER */
if (action == CELL_ACTION_RENDER)
{
gtk_cell_renderer_render (info->cell,
window,
tree_column->tree_view,
&rtl_background_area,
&rtl_cell_area,
&real_expose_area,
flags);
}
/* FOCUS */
else if (action == CELL_ACTION_FOCUS)
{
gint x_offset, y_offset, width, height;
gtk_cell_renderer_get_size (info->cell,
tree_column->tree_view,
&rtl_cell_area,
&x_offset, &y_offset,
&width, &height);
if (special_cells > 1)
{
if (info->has_focus)
{
min_x = rtl_cell_area.x + x_offset;
max_x = min_x + width;
min_y = rtl_cell_area.y + y_offset;
max_y = min_y + height;
}
}
else
{
if (min_x > (rtl_cell_area.x + x_offset))
min_x = rtl_cell_area.x + x_offset;
if (max_x < rtl_cell_area.x + x_offset + width)
max_x = rtl_cell_area.x + x_offset + width;
if (min_y > (rtl_cell_area.y + y_offset))
min_y = rtl_cell_area.y + y_offset;
if (max_y < rtl_cell_area.y + y_offset + height)
max_y = rtl_cell_area.y + y_offset + height;
}
}
/* EVENT */
else if (action == CELL_ACTION_EVENT)
{
gboolean try_event = FALSE;
if (event)
{
if (special_cells == 1)
{
/* only 1 activatable cell -> whole column can activate */
if (cell_area->x <= ((GdkEventButton *)event)->x &&
cell_area->x + cell_area->width > ((GdkEventButton *)event)->x)
try_event = TRUE;
}
else if (rtl_cell_area.x <= ((GdkEventButton *)event)->x &&
rtl_cell_area.x + rtl_cell_area.width > ((GdkEventButton *)event)->x)
/* only activate cell if the user clicked on an individual
* cell
*/
try_event = TRUE;
}
else if (special_cells > 1 && info->has_focus)
try_event = TRUE;
else if (special_cells == 1)
try_event = TRUE;
if (try_event)
{
gboolean visible, mode;
g_object_get (info->cell,
"visible", &visible,
"mode", &mode,
NULL);
if (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
{
if (gtk_cell_renderer_activate (info->cell,
event,
tree_column->tree_view,
path_string,
&rtl_background_area,
&rtl_cell_area,
flags))
{
flags &= ~GTK_CELL_RENDERER_FOCUSED;
return TRUE;
}
}
else if (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE)
{
*editable_widget =
gtk_cell_renderer_start_editing (info->cell,
event,
tree_column->tree_view,
path_string,
&rtl_background_area,
&rtl_cell_area,
flags);
if (*editable_widget != NULL)
{
g_return_val_if_fail (GTK_IS_CELL_EDITABLE (*editable_widget), FALSE);
info->in_editing_mode = TRUE;
gtk_tree_view_column_focus_cell (tree_column, info->cell);
flags &= ~GTK_CELL_RENDERER_FOCUSED;
return TRUE;
}
}
}
}
flags &= ~GTK_CELL_RENDERER_FOCUSED;
real_cell_area.x += (real_cell_area.width + 2 * focus_line_width + tree_column->spacing);
real_background_area.x += (real_background_area.width + tree_column->spacing);
/* Only needed for first cell */
depth = 0;
}
/* fill focus_rectangle when required */
if (action == CELL_ACTION_FOCUS)
{
if (min_x >= max_x || min_y >= max_y)
{
*focus_rectangle = *cell_area;
/* don't change the focus_rectangle, just draw it nicely inside
* the cell area */
}
else
{
focus_rectangle->x = min_x - focus_line_width;
focus_rectangle->y = min_y - focus_line_width;
focus_rectangle->width = (max_x - min_x) + 2 * focus_line_width;
focus_rectangle->height = (max_y - min_y) + 2 * focus_line_width;
}
}
return FALSE;
}
/**
* gtk_tree_view_column_cell_render:
* @tree_column: A #GtkTreeViewColumn.
* @window: a #GdkDrawable 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
* @expose_area: area that actually needs updating
* @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_render (GtkTreeViewColumn *tree_column,
GdkWindow *window,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
guint flags)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (background_area != NULL);
g_return_if_fail (cell_area != NULL);
g_return_if_fail (expose_area != NULL);
gtk_tree_view_column_cell_process_action (tree_column,
window,
background_area,
cell_area,
flags,
CELL_ACTION_RENDER,
expose_area,
NULL, NULL, NULL, NULL);
}
gboolean
_gtk_tree_view_column_cell_event (GtkTreeViewColumn *tree_column,
GtkCellEditable **editable_widget,
GdkEvent *event,
gchar *path_string,
GdkRectangle *background_area,
GdkRectangle *cell_area,
guint flags)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return gtk_tree_view_column_cell_process_action (tree_column,
NULL,
background_area,
cell_area,
flags,
CELL_ACTION_EVENT,
NULL, NULL,
editable_widget,
event,
path_string);
}
/* cell list manipulation */
static GList *
gtk_tree_view_column_cell_first (GtkTreeViewColumn *tree_column)
{
GList *list = tree_column->cell_list;
/* first GTK_PACK_START cell we find */
for ( ; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->pack == GTK_PACK_START)
return list;
}
/* hmm, else the *last* GTK_PACK_END cell */
list = g_list_last (tree_column->cell_list);
for ( ; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->pack == GTK_PACK_END)
return list;
}
return NULL;
}
static GList *
gtk_tree_view_column_cell_last (GtkTreeViewColumn *tree_column)
{
GList *list = tree_column->cell_list;
/* *first* GTK_PACK_END cell we find */
for ( ; list ; list = list->next)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->pack == GTK_PACK_END)
return list;
}
/* hmm, else the last GTK_PACK_START cell */
list = g_list_last (tree_column->cell_list);
for ( ; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->pack == GTK_PACK_START)
return list;
}
return NULL;
}
static GList *
gtk_tree_view_column_cell_next (GtkTreeViewColumn *tree_column,
GList *current)
{
GList *list;
GtkTreeViewColumnCellInfo *info = current->data;
if (info->pack == GTK_PACK_START)
{
for (list = current->next; list; list = list->next)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_START)
return list;
}
/* out of GTK_PACK_START cells, get *last* GTK_PACK_END one */
list = g_list_last (tree_column->cell_list);
for (; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_END)
return list;
}
}
for (list = current->prev; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_END)
return list;
}
return NULL;
}
static GList *
gtk_tree_view_column_cell_prev (GtkTreeViewColumn *tree_column,
GList *current)
{
GList *list;
GtkTreeViewColumnCellInfo *info = current->data;
if (info->pack == GTK_PACK_END)
{
for (list = current->next; list; list = list->next)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_END)
return list;
}
/* out of GTK_PACK_END, get last GTK_PACK_START one */
list = g_list_last (tree_column->cell_list);
for ( ; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_START)
return list;
}
}
for (list = current->prev; list; list = list->prev)
{
GtkTreeViewColumnCellInfo *inf = list->data;
if (inf->pack == GTK_PACK_START)
return list;
}
return NULL;
}
gboolean
_gtk_tree_view_column_cell_focus (GtkTreeViewColumn *tree_column,
gint direction,
gboolean left,
gboolean right)
{
gint count;
gboolean rtl;
count = _gtk_tree_view_column_count_special_cells (tree_column);
rtl = gtk_widget_get_direction (GTK_WIDGET (tree_column->tree_view)) == GTK_TEXT_DIR_RTL;
/* if we are the current focus column and have multiple editable cells,
* try to select the next one, else move the focus to the next column
*/
if (GTK_TREE_VIEW (tree_column->tree_view)->priv->focus_column == tree_column)
{
if (count > 1)
{
GList *next, *prev;
GList *list = tree_column->cell_list;
GtkTreeViewColumnCellInfo *info = NULL;
/* find current focussed cell */
for ( ; list; list = list->next)
{
info = list->data;
if (info->has_focus)
break;
}
/* not a focussed cell in the focus column? */
if (!list || !info || !info->has_focus)
return FALSE;
if (rtl)
{
prev = gtk_tree_view_column_cell_next (tree_column, list);
next = gtk_tree_view_column_cell_prev (tree_column, list);
}
else
{
next = gtk_tree_view_column_cell_next (tree_column, list);
prev = gtk_tree_view_column_cell_prev (tree_column, list);
}
info->has_focus = FALSE;
if (direction > 0 && next)
{
info = next->data;
info->has_focus = TRUE;
return TRUE;
}
else if (direction > 0 && !next && !right)
{
/* keep focus on last cell */
if (rtl)
info = gtk_tree_view_column_cell_first (tree_column)->data;
else
info = gtk_tree_view_column_cell_last (tree_column)->data;
info->has_focus = TRUE;
return TRUE;
}
else if (direction < 0 && prev)
{
info = prev->data;
info->has_focus = TRUE;
return TRUE;
}
else if (direction < 0 && !prev && !left)
{
/* keep focus on first cell */
if (rtl)
info = gtk_tree_view_column_cell_last (tree_column)->data;
else
info = gtk_tree_view_column_cell_first (tree_column)->data;
info->has_focus = TRUE;
return TRUE;
}
}
return FALSE;
}
/* we get focus, if we have multiple editable cells, give the correct one
* focus
*/
if (count > 1)
{
GList *list = tree_column->cell_list;
/* clear focus first */
for ( ; list ; list = list->next)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->has_focus)
info->has_focus = FALSE;
}
list = NULL;
if (rtl)
{
if (direction > 0)
list = gtk_tree_view_column_cell_last (tree_column);
else if (direction < 0)
list = gtk_tree_view_column_cell_first (tree_column);
}
else
{
if (direction > 0)
list = gtk_tree_view_column_cell_first (tree_column);
else if (direction < 0)
list = gtk_tree_view_column_cell_last (tree_column);
}
if (list)
((GtkTreeViewColumnCellInfo *) list->data)->has_focus = TRUE;
}
return TRUE;
}
void
_gtk_tree_view_column_cell_draw_focus (GtkTreeViewColumn *tree_column,
GdkWindow *window,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
guint flags)
{
gint focus_line_width;
GtkStateType cell_state;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
gtk_widget_style_get (GTK_WIDGET (tree_column->tree_view),
"focus-line-width", &focus_line_width, NULL);
if (tree_column->editable_widget)
{
/* This function is only called on the editable row when editing.
*/
#if 0
gtk_paint_focus (tree_column->tree_view->style,
window,
GTK_WIDGET_STATE (tree_column->tree_view),
NULL,
tree_column->tree_view,
"treeview",
cell_area->x - focus_line_width,
cell_area->y - focus_line_width,
cell_area->width + 2 * focus_line_width,
cell_area->height + 2 * focus_line_width);
#endif
}
else
{
GdkRectangle focus_rectangle;
gtk_tree_view_column_cell_process_action (tree_column,
window,
background_area,
cell_area,
flags,
CELL_ACTION_FOCUS,
expose_area,
&focus_rectangle,
NULL, NULL, NULL);
cell_state = flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
(flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
(flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL));
gtk_paint_focus (tree_column->tree_view->style,
window,
cell_state,
cell_area,
tree_column->tree_view,
"treeview",
focus_rectangle.x,
focus_rectangle.y,
focus_rectangle.width,
focus_rectangle.height);
}
}
/**
* 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()
*
* Return value: %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;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
if (info->cell->visible)
return TRUE;
}
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.
*
* Since: 2.2
**/
void
gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell)
{
GList *list;
gboolean found_cell = FALSE;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
if (_gtk_tree_view_column_count_special_cells (tree_column) < 2)
return;
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->cell == cell)
{
info->has_focus = TRUE;
found_cell = TRUE;
break;
}
}
if (found_cell)
{
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = list->data;
if (info->cell != cell)
info->has_focus = FALSE;
}
/* FIXME: redraw? */
}
}
void
_gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
gboolean install_handler)
{
GList *list;
for (list = tree_column->cell_list; list; list = list->next)
{
GtkTreeViewColumnCellInfo *info = (GtkTreeViewColumnCellInfo *) list->data;
info->requested_width = 0;
}
tree_column->dirty = TRUE;
tree_column->requested_width = -1;
tree_column->width = 0;
if (tree_column->tree_view &&
GTK_WIDGET_REALIZED (tree_column->tree_view))
{
if (install_handler)
_gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (tree_column->tree_view));
else
GTK_TREE_VIEW (tree_column->tree_view)->priv->mark_rows_col_dirty = TRUE;
gtk_widget_queue_resize (tree_column->tree_view);
}
}
void
_gtk_tree_view_column_start_editing (GtkTreeViewColumn *tree_column,
GtkCellEditable *cell_editable)
{
g_return_if_fail (tree_column->editable_widget == NULL);
tree_column->editable_widget = cell_editable;
}
void
_gtk_tree_view_column_stop_editing (GtkTreeViewColumn *tree_column)
{
GList *list;
g_return_if_fail (tree_column->editable_widget != NULL);
tree_column->editable_widget = NULL;
for (list = tree_column->cell_list; list; list = list->next)
((GtkTreeViewColumnCellInfo *)list->data)->in_editing_mode = FALSE;
}
void
_gtk_tree_view_column_get_neighbor_sizes (GtkTreeViewColumn *column,
GtkCellRenderer *cell,
gint *left,
gint *right)
{
GList *list;
GtkTreeViewColumnCellInfo *info;
gint l, r;
gboolean rtl;
l = r = 0;
list = gtk_tree_view_column_cell_first (column);
while (list)
{
info = (GtkTreeViewColumnCellInfo *)list->data;
list = gtk_tree_view_column_cell_next (column, list);
if (info->cell == cell)
break;
if (info->cell->visible)
l += info->real_width + column->spacing;
}
while (list)
{
info = (GtkTreeViewColumnCellInfo *)list->data;
list = gtk_tree_view_column_cell_next (column, list);
if (info->cell->visible)
r += info->real_width + column->spacing;
}
rtl = (gtk_widget_get_direction (GTK_WIDGET (column->tree_view)) == GTK_TEXT_DIR_RTL);
if (left)
*left = rtl ? r : l;
if (right)
*right = rtl ? l : r;
}
/**
* gtk_tree_view_column_cell_get_position:
* @tree_column: a #GtkTreeViewColumn
* @cell_renderer: a #GtkCellRenderer
* @start_pos: return location for the horizontal position of @cell within
* @tree_column, may be %NULL
* @width: 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.
*
* Return value: %TRUE if @cell belongs to @tree_column.
*/
gboolean
gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell_renderer,
gint *start_pos,
gint *width)
{
GList *list;
gint current_x = 0;
gboolean found_cell = FALSE;
GtkTreeViewColumnCellInfo *cellinfo = NULL;
list = gtk_tree_view_column_cell_first (tree_column);
for (; list; list = gtk_tree_view_column_cell_next (tree_column, list))
{
cellinfo = list->data;
if (cellinfo->cell == cell_renderer)
{
found_cell = TRUE;
break;
}
if (cellinfo->cell->visible)
current_x += cellinfo->real_width;
}
if (found_cell)
{
if (start_pos)
*start_pos = current_x;
if (width)
*width = cellinfo->real_width;
}
return found_cell;
}
/**
* 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.
*
* Since: 2.8
**/
void
gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
{
g_return_if_fail (tree_column != NULL);
if (tree_column->tree_view)
_gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
}
#define __GTK_TREE_VIEW_COLUMN_C__
#include "gtkaliasdef.c"
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