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gtk2/gtk/gtktreeviewcolumn.c
Jonathan Blandford f3f7dd9e0c Fix segfault found by Vitaly Tishkov <tvv@sparc.spb.su>. 
Mon Jun  4 15:05:24 2001  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_set_max_width):
	Fix segfault found by Vitaly Tishkov <tvv@sparc.spb.su>.
	(gtk_tree_view_column_set_min_width): ditto.
2001-06-05 15:30:53 +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 "gtktreeviewcolumn.h"
#include "gtktreeview.h"
#include "gtktreeprivate.h"
#include "gtksignal.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkarrow.h"
#include "gtkintl.h"
#include <string.h>
enum
{
PROP_0,
PROP_CELL_RENDERER,
PROP_VISIBLE,
PROP_SIZING,
PROP_WIDTH,
PROP_MIN_WIDTH,
PROP_MAX_WIDTH,
PROP_TITLE,
PROP_CLICKABLE,
PROP_WIDGET,
PROP_ALIGNMENT,
PROP_REORDERABLE,
PROP_SORT_INDICATOR,
PROP_SORT_ORDER
};
enum
{
CLICKED,
LAST_SIGNAL
};
/* Type methods */
static void gtk_tree_view_column_init (GtkTreeViewColumn *tree_column);
static void gtk_tree_view_column_class_init (GtkTreeViewColumnClass *klass);
/* 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);
/* 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_realize (GtkWidget *widget,
gpointer data);
static void gtk_tree_view_column_button_clicked (GtkWidget *widget,
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,
va_list args);
static GtkObjectClass *parent_class = NULL;
static guint tree_column_signals[LAST_SIGNAL] = { 0 };
GtkType
gtk_tree_view_column_get_type (void)
{
static GtkType tree_column_type = 0;
if (!tree_column_type)
{
static const GTypeInfo tree_column_info =
{
sizeof (GtkTreeViewColumnClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_tree_view_column_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkTreeViewColumn),
0,
(GInstanceInitFunc) gtk_tree_view_column_init,
};
tree_column_type = g_type_register_static (GTK_TYPE_OBJECT, "GtkTreeViewColumn", &tree_column_info, 0);
}
return tree_column_type;
}
static void
gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
{
GObjectClass *object_class;
object_class = (GObjectClass*) class;
parent_class = g_type_class_peek_parent (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_newc ("clicked",
GTK_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
NULL, NULL,
gtk_marshal_VOID__VOID,
GTK_TYPE_NONE, 0);
g_object_class_install_property (object_class,
PROP_CELL_RENDERER,
g_param_spec_object ("cell_renderer",
_("Cell renderer"),
_("Cell renderer object to use for rendering the cell"),
GTK_TYPE_CELL_RENDERER,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_VISIBLE,
g_param_spec_boolean ("visible",
_("Visible"),
_("Whether to display the colomn"),
TRUE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_SIZING,
g_param_spec_enum ("sizing",
_("Sizing"),
_("Resize mode of the column"),
GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
GTK_TREE_VIEW_COLUMN_AUTOSIZE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_WIDTH,
g_param_spec_int ("width",
_("Width"),
_("Current width of the column"),
1,
G_MAXINT,
1, /* not useful */
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_MIN_WIDTH,
g_param_spec_int ("min_width",
_("Minimum Width"),
_("Minimum allowed width of the column"),
-1,
G_MAXINT,
1,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_MAX_WIDTH,
g_param_spec_int ("max_width",
_("Maximum Width"),
_("Maximum allowed width of the column"),
-1,
G_MAXINT,
G_MAXINT,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_TITLE,
g_param_spec_string ("title",
_("Title"),
_("Title to appear in column header"),
"",
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_CLICKABLE,
g_param_spec_boolean ("clickable",
_("Clickable"),
_("Whether the header can be clicked"),
TRUE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_WIDGET,
g_param_spec_object ("widget",
_("Widget"),
_("Widget to put in column header button instead of column title"),
GTK_TYPE_WIDGET,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_ALIGNMENT,
g_param_spec_float ("alignment",
_("Alignment"),
_("X Alignment of the column header text or widget"),
0.0,
1.0,
0.5,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_REORDERABLE,
g_param_spec_boolean ("reorderable",
_("Reorderable"),
_("Wether the column can be reordered around the headers"),
FALSE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_SORT_INDICATOR,
g_param_spec_boolean ("sort_indicator",
_("Sort indicator"),
_("Whether to show a sort indicator"),
FALSE,
G_PARAM_READABLE | G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_SORT_ORDER,
g_param_spec_enum ("sort_order",
_("Sort order"),
_("Sort direction the sort indicator should indicate"),
GTK_TYPE_TREE_SORT_ORDER,
GTK_TREE_SORT_ASCENDING,
G_PARAM_READABLE | G_PARAM_WRITABLE));
}
static void
gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
{
/* FIXME remove on port to GtkObject */
gtk_object_ref (GTK_OBJECT (tree_column));
gtk_object_sink (GTK_OBJECT (tree_column));
tree_column->button = NULL;
tree_column->xalign = 0.0;
tree_column->width = 1;
tree_column->requested_width = -1;
tree_column->min_width = -1;
tree_column->max_width = -1;
tree_column->cell = NULL;
tree_column->attributes = NULL;
tree_column->column_type = GTK_TREE_VIEW_COLUMN_AUTOSIZE;
tree_column->visible = TRUE;
tree_column->clickable = FALSE;
tree_column->dirty = TRUE;
tree_column->sort_order = GTK_TREE_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;
}
static void
gtk_tree_view_column_finalize (GObject *object)
{
GtkTreeViewColumn *tree_column = (GtkTreeViewColumn *) object;
if (tree_column->func_data && tree_column->destroy)
(tree_column->destroy) (tree_column->func_data);
g_slist_free (tree_column->attributes);
g_free (tree_column->title);
}
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_CELL_RENDERER:
gtk_tree_view_column_set_cell_renderer (tree_column,
(GtkCellRenderer*)
g_value_get_object (value));
break;
case PROP_VISIBLE:
gtk_tree_view_column_set_visible (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_WIDTH:
gtk_tree_view_column_set_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_TITLE:
gtk_tree_view_column_set_title (tree_column,
g_value_get_string (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_CELL_RENDERER:
g_value_set_object (value,
(GObject*) gtk_tree_view_column_get_cell_renderer (tree_column));
break;
case PROP_VISIBLE:
g_value_set_boolean (value,
gtk_tree_view_column_get_visible (tree_column));
break;
case PROP_SIZING:
g_value_set_enum (value,
gtk_tree_view_column_get_sizing (tree_column));
break;
case PROP_WIDTH:
g_value_set_int (value,
gtk_tree_view_column_get_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_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;
}
}
/* 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 (tree_view != NULL);
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_pop_composite_child ();
/* make sure we own a reference to it as well. */
gtk_widget_set_parent (tree_column->button, GTK_WIDGET (tree_view));
if (tree_view->priv->header_window)
gtk_widget_set_parent_window (tree_column->button, tree_view->priv->header_window);
gtk_signal_connect (GTK_OBJECT (tree_column->button), "realize",
(GtkSignalFunc) gtk_tree_view_column_button_realize,
NULL);
gtk_signal_connect (GTK_OBJECT (tree_column->button), "event",
(GtkSignalFunc) gtk_tree_view_column_button_event,
(gpointer) tree_column);
gtk_signal_connect (GTK_OBJECT (tree_column->button), "clicked",
(GtkSignalFunc) gtk_tree_view_column_button_clicked,
(gpointer) 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);
}
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)
{
GtkWidget *hbox;
GtkWidget *alignment;
GtkWidget *arrow;
GtkWidget *current_child;
/* 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 (GTK_LABEL (current_child),
tree_column->title);
else
gtk_label_set_text (GTK_LABEL (current_child),
"");
}
switch (tree_column->sort_order)
{
case GTK_TREE_SORT_ASCENDING:
gtk_arrow_set (GTK_ARROW (arrow),
GTK_ARROW_DOWN,
GTK_SHADOW_IN);
break;
case GTK_TREE_SORT_DESCENDING:
gtk_arrow_set (GTK_ARROW (arrow),
GTK_ARROW_UP,
GTK_SHADOW_IN);
break;
default:
g_warning (G_STRLOC": bad sort order");
break;
}
/* 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
*/
gtk_widget_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);
}
gtk_widget_unref (arrow);
if (tree_column->show_sort_indicator)
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->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE)
{
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))
gtk_window_set_focus (GTK_WINDOW (gtk_widget_get_toplevel (tree_column->tree_view)), NULL);
}
tree_column->dirty = TRUE;
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)
{
column->maybe_reordered = TRUE;
gdk_window_get_pointer (widget->window,
&column->drag_x,
&column->drag_y,
NULL);
gtk_widget_grab_focus (widget);
}
if (event->type == GDK_BUTTON_RELEASE &&
column->maybe_reordered)
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_realize (GtkWidget *widget, gpointer data)
{
gdk_window_set_events (widget->window, gdk_window_get_events (widget->window) | GDK_POINTER_MOTION_MASK);
}
static void
gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
{
g_signal_emit_by_name (G_OBJECT (data), "clicked");
}
static void
gtk_tree_view_model_sort_column_changed (GtkTreeSortable *sortable,
GtkTreeViewColumn *column)
{
gint sort_column_id;
GtkTreeSortOrder 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);
}
}
}
static void
gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
gpointer data)
{
GList *list;
g_return_if_fail (tree_column->tree_view != NULL);
if (tree_column->show_sort_indicator)
{
if (tree_column->sort_order == GTK_TREE_SORT_ASCENDING)
gtk_tree_view_column_set_sort_order (tree_column, GTK_TREE_SORT_DESCENDING);
else
gtk_tree_view_column_set_sort_order (tree_column, GTK_TREE_SORT_ASCENDING);
}
else
{
gtk_tree_view_column_set_sort_order (tree_column, GTK_TREE_SORT_ASCENDING);
gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
}
list = (GTK_TREE_VIEW (tree_column->tree_view)->priv->columns);
g_assert (list);
while (list)
{
GtkTreeViewColumn *tmp_column;
tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
if (tmp_column->visible && tmp_column != tree_column)
gtk_tree_view_column_set_sort_indicator (tmp_column, FALSE);
list = list->next;
}
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (GTK_TREE_VIEW (tree_column->tree_view)->priv->model),
tree_column->sort_column_id,
tree_column->sort_order);
}
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)
{
if (tree_column->sort_column_changed_signal)
{
g_signal_handler_disconnect (G_OBJECT (tree_column), tree_column->sort_column_changed_signal);
tree_column->sort_column_changed_signal = 0;
}
return;
}
if (GTK_IS_TREE_SORTABLE (model) &&
tree_column->sort_column_id != -1)
{
gint real_sort_column_id;
GtkTreeSortOrder real_order;
if (tree_column->sort_column_changed_signal == 0)
tree_column->sort_column_changed_signal =
g_signal_connectc (G_OBJECT (model), "sort_column_changed",
GTK_SIGNAL_FUNC (gtk_tree_view_model_sort_column_changed),
tree_column, FALSE);
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);
return;
}
}
}
/* 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;
tree_view = (GtkTreeView *)column->tree_view;
g_return_if_fail (tree_view != NULL);
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));
attr.event_mask = (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 (GDK_SB_H_DOUBLE_ARROW);
tree_view->priv->cursor_drag = attr.cursor;
attr.y = 0;
attr.width = TREE_VIEW_DRAG_WIDTH;
attr.height = tree_view->priv->header_height;
attr.x = (column->button->allocation.x + 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);
}
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_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_data (GTK_OBJECT (tree_view),
"notify::model",
GTK_SIGNAL_FUNC (gtk_tree_view_column_setup_sort_column_id_callback),
column, NULL, TRUE, FALSE);
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 (G_OBJECT (column->tree_view), column->property_changed_signal);
column->property_changed_signal = 0;
}
if (column->sort_column_changed_signal)
{
g_signal_handler_disconnect (G_OBJECT (column), column->sort_column_changed_signal);
column->sort_column_changed_signal = 0;
}
column->tree_view = NULL;
column->button = NULL;
}
void
_gtk_tree_view_column_set_width (GtkTreeViewColumn *tree_column,
gint width)
{
if (tree_column->min_width != -1 &&
width <= tree_column->min_width)
width = tree_column->min_width;
else if (tree_column->max_width != -1 &&
width > tree_column->max_width)
width = tree_column->max_width;
if (tree_column->width == width)
return;
tree_column->width = width;
g_object_notify (G_OBJECT (tree_column), "width");
if (tree_column->tree_view != NULL)
gtk_widget_queue_resize (tree_column->tree_view);
}
/* 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 = GTK_TREE_VIEW_COLUMN (gtk_type_new (GTK_TYPE_TREE_VIEW_COLUMN));
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_set_cell_renderer, and
* @gtk_tree_view_column_set_attributes on the newly created #GtkTreeViewColumn.
*
* 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_set_cell_renderer (retval, cell);
va_start (args, cell);
gtk_tree_view_column_set_attributesv (retval, args);
va_end (args);
return retval;
}
/**
* gtk_tree_view_column_set_cell_renderer:
* @tree_column: A #GtkTreeViewColumn.
* @cell: The #GtkCellRenderer, or NULL.
*
* Sets the cell renderer of the @tree_column. If there is a cell
* renderer already set, then it is removed. If @cell is NULL, then
* the cell renderer is unset.
**/
void
gtk_tree_view_column_set_cell_renderer (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (cell)
g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
if (cell)
g_object_ref (G_OBJECT (cell));
if (tree_column->cell)
g_object_unref (G_OBJECT (tree_column->cell));
tree_column->cell = cell;
if (tree_column->tree_view)
{
tree_column->dirty = TRUE;
gtk_widget_queue_resize (tree_column->tree_view);
}
g_object_notify (G_OBJECT (tree_column), "cell_renderer");
}
/**
* gtk_tree_view_column_get_cell_renderer:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the value set with gtk_tree_view_column_set_cell_renderer().
*
* Return value: cell renderer for the column, or %NULL if unset
**/
GtkCellRenderer*
gtk_tree_view_column_get_cell_renderer (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->cell;
}
/**
* gtk_tree_view_column_add_attribute:
* @tree_column: A #GtkTreeViewColumn.
* @attribute: An attribute on the columns cell
* @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 position on the model to get a value from, and the @attribute is the
* parameter on the @tree_column's cell renderer to set that value to.
**/
void
gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
const gchar *attribute,
gint column)
{
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
tree_column->attributes = g_slist_prepend (tree_column->attributes,
GINT_TO_POINTER (column));
tree_column->attributes = g_slist_prepend (tree_column->attributes,
g_strdup (attribute));
if (tree_column->tree_view)
{
tree_column->dirty = TRUE;
gtk_widget_queue_resize (tree_column->tree_view);
}
}
static void
gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
va_list args)
{
gchar *attribute;
gint column;
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
attribute = va_arg (args, gchar *);
gtk_tree_view_column_clear_attributes (tree_column);
while (attribute != NULL)
{
column = va_arg (args, gint);
gtk_tree_view_column_add_attribute (tree_column,
attribute,
column);
attribute = va_arg (args, gchar *);
}
}
/**
* gtk_tree_view_column_set_attributes:
* @tree_column: A #GtkTreeViewColumn.
* @Varargs: A NULL terminated listing 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,
...)
{
va_list args;
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
va_start (args, tree_column);
gtk_tree_view_column_set_attributesv (tree_column, args);
va_end (args);
}
/**
* gtk_tree_view_column_set_cell_data_func:
* @tree_column: A #GtkTreeViewColumn
* @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,
GtkTreeCellDataFunc func,
gpointer func_data,
GtkDestroyNotify destroy)
{
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (func == tree_column->func &&
func_data == tree_column->func_data &&
destroy == tree_column->destroy)
return;
if (tree_column->func_data && tree_column->destroy)
(tree_column->destroy) (tree_column->func_data);
tree_column->func = func;
tree_column->func_data = func_data;
tree_column->destroy = destroy;
if (tree_column->tree_view)
{
tree_column->dirty = TRUE;
gtk_widget_queue_resize (tree_column->tree_view);
}
}
/**
* gtk_tree_view_column_clear_attributes:
* @tree_column: a #GtkTreeViewColumn
*
* Clears all existing attributes previously set with
* gtk_tree_view_column_set_attributes().
**/
void
gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column)
{
GSList *list;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
list = tree_column->attributes;
while (list && list->next)
{
g_free (list->data);
list = list->next->next;
}
g_slist_free (tree_column->attributes);
tree_column->attributes = NULL;
if (tree_column->tree_view)
{
tree_column->dirty = TRUE;
gtk_widget_queue_resize (tree_column->tree_view);
}
}
/* 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 (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
visible = !! visible;
if (tree_column->visible == visible)
return;
tree_column->visible = visible;
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 (tree_column != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
return tree_column->visible;
}
/**
* 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 (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
if (type == tree_column->column_type)
return;
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);
}
tree_column->column_type = type;
gtk_tree_view_column_update_button (tree_column);
if (type != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
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.
**/
gint
gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (tree_column != NULL, 0);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->column_type;
}
/**
* gtk_tree_view_column_get_size:
* @tree_column: A #GtkTreeViewColumn.
*
* Returns the current size of the @tree_column in pixels.
*
* Return value: The current size of the @tree_column.
**/
gint
gtk_tree_view_column_get_size (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (tree_column != NULL, 0);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
return tree_column->width;
}
/**
* gtk_tree_view_column_set_width:
* @tree_column: A #GtkTreeViewColumn.
* @width: The size to set the @tree_column to.
*
* Sets the size of the column in pixels, unless the the column type is
* #GTK_TREE_VIEW_COLUMN_AUTOSIZE. In this case, the value is discarded as the
* size of the column is based on the calculated width of the column. The
* width is clamped to the min/max width for the column.
**/
void
gtk_tree_view_column_set_width (GtkTreeViewColumn *tree_column,
gint width)
{
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (width > 0);
if (tree_column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
return;
tree_column->requested_width = width;
_gtk_tree_view_column_set_width (tree_column, width);
}
/**
* gtk_tree_view_column_get_width:
* @tree_column: a #GtkTreeViewColumn
*
* Gets the value set by gtk_tree_view_column_set_width().
*
* Return value: the width of the 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_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)
{
gint real_min_width;
g_return_if_fail (tree_column != NULL);
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->tree_view == NULL)
{
tree_column->min_width = min_width;
return;
}
real_min_width = (tree_column->min_width == -1) ?
tree_column->button->requisition.width : tree_column->min_width;
/* We want to queue a resize if the either the old min_size or the
* new min_size determined the size of the column */
if (GTK_WIDGET_REALIZED (tree_column->tree_view))
{
if ((tree_column->min_width > tree_column->width) ||
(tree_column->min_width == -1 &&
tree_column->button->requisition.width > tree_column->width) ||
(min_width > tree_column->width) ||
(min_width == -1 &&
tree_column->button->requisition.width > tree_column->width))
gtk_widget_queue_resize (tree_column->tree_view);
}
if (tree_column->max_width != -1 && tree_column->max_width < real_min_width)
tree_column->max_width = real_min_width;
tree_column->min_width = min_width;
g_object_notify (G_OBJECT (tree_column), "min_width");
}
/**
* 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 (tree_column != NULL, -1);
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.
**/
void
gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
gint max_width)
{
gint real_max_width;
g_return_if_fail (tree_column != NULL);
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->tree_view == NULL)
{
tree_column->max_width = max_width;
return;
}
real_max_width = tree_column->max_width == -1 ?
tree_column->button->requisition.width : tree_column->max_width;
if (tree_column->tree_view &&
GTK_WIDGET_REALIZED (tree_column->tree_view) &&
((tree_column->max_width < tree_column->width) ||
(max_width != -1 && max_width < tree_column->width)))
gtk_widget_queue_resize (tree_column->tree_view);
tree_column->max_width = max_width;
if (real_max_width > max_width)
tree_column->max_width = max_width;
g_object_notify (G_OBJECT (tree_column), "max_width");
}
/**
* 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 (tree_column != NULL, -1);
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
* the user could have conceivably clicked on the button.
**/
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)
{
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_free (tree_column->title);
if (title)
tree_column->title = g_strdup (title);
else
tree_column->title = NULL;
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. This value should not be modified.
*
* Return value: the title of the column.
**/
G_CONST_RETURN gchar *
gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (tree_column != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
return tree_column->title;
}
/**
* 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));
if (tree_column->clickable == (clickable?TRUE:FALSE))
return;
tree_column->clickable = (clickable?TRUE:FALSE);
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: whether the 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)
{
gtk_object_ref (GTK_OBJECT (widget));
gtk_object_sink (GTK_OBJECT (widget));
}
if (tree_column->child)
gtk_object_unref (GTK_OBJECT (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 in the column header. If a custom
* widget has not been set, then this will be a #GtkAlignment with a #GtkLabel
* in it.
*
* Return value: The #GtkWidget in the column header.
**/
GtkWidget *
gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
{
g_return_val_if_fail (tree_column != NULL, NULL);
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: alignment (0.0 for left, 0.5 for center, 1.0 for right)
*
* Sets the alignment of the title or custom widget inside the column header.
**/
void
gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
gfloat xalign)
{
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
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;
}
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");
}
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 sort_column_id that the column sorts on. Doing so makes headers
* 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 >= 0);
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)
{
if (tree_column->sort_clicked_signal)
{
g_signal_handler_disconnect (G_OBJECT (tree_column), tree_column->sort_clicked_signal);
tree_column->sort_clicked_signal = 0;
}
if (tree_column->sort_column_changed_signal)
{
g_signal_handler_disconnect (G_OBJECT (tree_column), tree_column->sort_column_changed_signal);
tree_column->sort_column_changed_signal = 0;
}
gtk_tree_view_column_set_sort_order (tree_column, GTK_TREE_SORT_ASCENDING);
gtk_tree_view_column_set_sort_indicator (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_connectc (G_OBJECT (tree_column),
"clicked",
G_CALLBACK (gtk_tree_view_column_sort),
NULL, FALSE);
gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
}
/**
* 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,
GtkTreeSortOrder 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
**/
GtkTreeSortOrder
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.
*
* Sets the cell renderer based on the @tree_model and @tree_node. That is, for
* every attribute mapping in @tree_column, it will get a value from the set
* column on the @tree_node, 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)
{
GSList *list;
GValue value = { 0, };
GObject *cell;
g_return_if_fail (tree_column != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_return_if_fail (tree_column->cell != NULL);
if (tree_model == NULL)
return;
cell = (GObject *) tree_column->cell;
list = tree_column->attributes;
g_object_freeze_notify (cell);
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 (tree_column->func)
(* tree_column->func) (tree_column, tree_column->cell, tree_model, iter, tree_column->func_data);
g_object_thaw_notify (cell);
}
/**
* gtk_tree_view_column_cell_get_size:
* @tree_column: A #GtkTreeViewColumn.
* @cell_area: The area a the column will be allocated, or %NULL
* @x_offset: location to return x offset of cell relative to @cell_area, or %NULL
* @y_offset: location to return y offset of 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)
{
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
gtk_cell_renderer_get_size (tree_column->cell,
tree_column->tree_view,
cell_area,
x_offset,
y_offset,
width,
height);
}
/**
* 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)
{
gboolean visible;
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
g_object_get (G_OBJECT (tree_column->cell), "visible", &visible, NULL);
if (visible)
gtk_cell_renderer_render (tree_column->cell,
window,
tree_column->tree_view,
background_area,
cell_area,
expose_area,
flags);
}
/**
* gtk_tree_view_column_cell_event:
* @tree_column: A #GtkTreeViewColumn.
* @event: a #GdkEvent
* @path_string: widget-dependent string representation of the event location; e.g. for #GtkTreeView, a string representation of #GtkTreePath
* @background_area: background area as passed to gtk_cell_renderer_render()
* @cell_area: cell area as passed to gtk_cell_renderer_render()
* @flags: render flags
*
* Handles an event. This is used primarily by the GtkTreeView.
*
* Return value: %TRUE if the event was consumed/handled
**/
gboolean
gtk_tree_view_column_cell_event (GtkTreeViewColumn *tree_column,
GdkEvent *event,
gchar *path_string,
GdkRectangle *background_area,
GdkRectangle *cell_area,
guint flags)
{
gboolean visible, can_activate;
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
g_object_get (G_OBJECT (tree_column->cell),
"visible", &visible,
"can_activate", &can_activate,
NULL);
if (visible && can_activate)
{
if (gtk_cell_renderer_event (tree_column->cell,
event,
tree_column->tree_view,
path_string,
background_area,
cell_area,
flags))
return TRUE;
}
return FALSE;
}
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