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gtk2/gtk/gtkcolumnview.c
Sophie Herold a546ae32d7 Remove all nicks and blurbs from param specs 
Those property features don't seem to be in use anywhere.
They are redundant since the docs cover the same information
and more. They also created unnecessary translation work.

Closes #4904
2022-05-11 18:16:29 +02:00

1810 lines
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/*
* Copyright © 2019 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtkcolumnviewprivate.h"
#include "gtkboxlayout.h"
#include "gtkbuildable.h"
#include "gtkcolumnlistitemfactoryprivate.h"
#include "gtkcolumnviewcolumnprivate.h"
#include "gtkcolumnviewlayoutprivate.h"
#include "gtkcolumnviewsorterprivate.h"
#include "gtkcssnodeprivate.h"
#include "gtkdropcontrollermotion.h"
#include "gtkintl.h"
#include "gtklistviewprivate.h"
#include "gtkmain.h"
#include "gtkprivate.h"
#include "gtkscrollable.h"
#include "gtkwidgetprivate.h"
#include "gtksizerequest.h"
#include "gtkadjustment.h"
#include "gtkgesturedrag.h"
#include "gtkeventcontrollermotion.h"
#include "gtkdragsourceprivate.h"
#include "gtkeventcontrollerkey.h"
#include "gtkgestureclick.h"
/**
* GtkColumnView:
*
* `GtkColumnView` presents a large dynamic list of items using multiple columns
* with headers.
*
* `GtkColumnView` uses the factories of its columns to generate a cell widget for
* each column, for each visible item and displays them together as the row for
* this item.
*
* The [property@Gtk.ColumnView:show-row-separators] and
* [property@Gtk.ColumnView:show-column-separators] properties offer a simple way
* to display separators between the rows or columns.
*
* `GtkColumnView` allows the user to select items according to the selection
* characteristics of the model. For models that allow multiple selected items,
* it is possible to turn on *rubberband selection*, using
* [property@Gtk.ColumnView:enable-rubberband].
*
* The column view supports sorting that can be customized by the user by
* clicking on column headers. To set this up, the `GtkSorter` returned by
* [method@Gtk.ColumnView.get_sorter] must be attached to a sort model for the
* data that the view is showing, and the columns must have sorters attached to
* them by calling [method@Gtk.ColumnViewColumn.set_sorter]. The initial sort
* order can be set with [method@Gtk.ColumnView.sort_by_column].
*
* The column view also supports interactive resizing and reordering of
* columns, via Drag-and-Drop of the column headers. This can be enabled or
* disabled with the [property@Gtk.ColumnView:reorderable] and
* [property@Gtk.ColumnViewColumn:resizable] properties.
*
* To learn more about the list widget framework, see the
* [overview](section-list-widget.html).
*
* # CSS nodes
*
* ```
* columnview[.column-separators][.rich-list][.navigation-sidebar][.data-table]
* ├── header
* │ ├── <column header>
* ┊ ┊
* │ ╰── <column header>
* │
* ├── listview
* │
* ┊
* ╰── [rubberband]
* ```
*
* `GtkColumnView` uses a single CSS node named columnview. It may carry the
* .column-separators style class, when [property@Gtk.ColumnView:show-column-separators]
* property is set. Header widgets appear below a node with name header.
* The rows are contained in a `GtkListView` widget, so there is a listview
* node with the same structure as for a standalone `GtkListView` widget.
* If [property@Gtk.ColumnView:show-row-separators] is set, it will be passed
* on to the list view, causing its CSS node to carry the .separators style class.
* For rubberband selection, a node with name rubberband is used.
*
* The main columnview node may also carry style classes to select
* the style of [list presentation](section-list-widget.html#list-styles):
* .rich-list, .navigation-sidebar or .data-table.
*
* # Accessibility
*
* `GtkColumnView` uses the %GTK_ACCESSIBLE_ROLE_TREE_GRID role, header title
* widgets are using the %GTK_ACCESSIBLE_ROLE_COLUMN_HEADER role. The row widgets
* are using the %GTK_ACCESSIBLE_ROLE_ROW role, and individual cells are using
* the %GTK_ACCESSIBLE_ROLE_GRID_CELL role
*/
/* We create a subclass of GtkListView for the sole purpose of overriding
* some parameters for item creation.
*/
#define GTK_TYPE_COLUMN_LIST_VIEW (gtk_column_list_view_get_type ())
G_DECLARE_FINAL_TYPE (GtkColumnListView, gtk_column_list_view, GTK, COLUMN_LIST_VIEW, GtkListView)
struct _GtkColumnListView
{
GtkListView parent_instance;
};
struct _GtkColumnListViewClass
{
GtkListViewClass parent_class;
};
G_DEFINE_TYPE (GtkColumnListView, gtk_column_list_view, GTK_TYPE_LIST_VIEW)
static void
gtk_column_list_view_init (GtkColumnListView *view)
{
}
static void
gtk_column_list_view_class_init (GtkColumnListViewClass *klass)
{
GtkListBaseClass *list_base_class = GTK_LIST_BASE_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
list_base_class->list_item_name = "row";
list_base_class->list_item_role = GTK_ACCESSIBLE_ROLE_ROW;
gtk_widget_class_set_css_name (widget_class, I_("listview"));
gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_LIST);
}
struct _GtkColumnView
{
GtkWidget parent_instance;
GListStore *columns;
GtkWidget *header;
GtkListView *listview;
GtkColumnListItemFactory *factory;
GtkSorter *sorter;
GtkAdjustment *hadjustment;
guint reorderable : 1;
guint show_column_separators : 1;
guint in_column_resize : 1;
guint in_column_reorder : 1;
int drag_pos;
int drag_x;
int drag_offset;
int drag_column_x;
guint autoscroll_id;
double autoscroll_x;
double autoscroll_delta;
GtkGesture *drag_gesture;
};
struct _GtkColumnViewClass
{
GtkWidgetClass parent_class;
};
enum
{
PROP_0,
PROP_COLUMNS,
PROP_HADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_MODEL,
PROP_SHOW_ROW_SEPARATORS,
PROP_SHOW_COLUMN_SEPARATORS,
PROP_SORTER,
PROP_VADJUSTMENT,
PROP_VSCROLL_POLICY,
PROP_SINGLE_CLICK_ACTIVATE,
PROP_REORDERABLE,
PROP_ENABLE_RUBBERBAND,
N_PROPS
};
enum {
ACTIVATE,
LAST_SIGNAL
};
static GtkBuildableIface *parent_buildable_iface;
static void
gtk_column_view_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *type)
{
if (GTK_IS_COLUMN_VIEW_COLUMN (child))
{
if (type != NULL)
{
GTK_BUILDER_WARN_INVALID_CHILD_TYPE (buildable, type);
}
else
{
gtk_column_view_append_column (GTK_COLUMN_VIEW (buildable),
GTK_COLUMN_VIEW_COLUMN (child));
}
}
else
{
parent_buildable_iface->add_child (buildable, builder, child, type);
}
}
static void
gtk_column_view_buildable_interface_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_column_view_buildable_add_child;
}
static gboolean
gtk_column_view_scrollable_get_border (GtkScrollable *scrollable,
GtkBorder *border)
{
GtkColumnView *self = GTK_COLUMN_VIEW (scrollable);
border->top = gtk_widget_get_height (self->header);
return TRUE;
}
static void
gtk_column_view_scrollable_interface_init (GtkScrollableInterface *iface)
{
iface->get_border = gtk_column_view_scrollable_get_border;
}
G_DEFINE_TYPE_WITH_CODE (GtkColumnView, gtk_column_view, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_column_view_buildable_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, gtk_column_view_scrollable_interface_init))
static GParamSpec *properties[N_PROPS] = { NULL, };
static guint signals[LAST_SIGNAL] = { 0 };
static void
gtk_column_view_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkColumnView *self = GTK_COLUMN_VIEW (widget);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_column_view_measure_across (self, minimum, natural);
}
else
{
int header_min, header_nat, list_min, list_nat;
gtk_widget_measure (GTK_WIDGET (self->header),
orientation, for_size,
&header_min, &header_nat,
NULL, NULL);
gtk_widget_measure (GTK_WIDGET (self->listview),
orientation, for_size,
&list_min, &list_nat,
NULL, NULL);
*minimum = header_min + list_min;
*natural = header_nat + list_nat;
}
}
void
gtk_column_view_distribute_width (GtkColumnView *self,
int width,
GtkRequestedSize *sizes)
{
GtkScrollablePolicy scroll_policy;
int col_min, col_nat, extra, col_size;
int n, n_expand, expand_size, n_extra;
guint i;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
n_expand = 0;
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (gtk_column_view_column_get_visible (column))
{
gtk_column_view_column_measure (column, &sizes[i].minimum_size, &sizes[i].natural_size);
if (gtk_column_view_column_get_expand (column))
n_expand++;
}
else
sizes[i].minimum_size = sizes[i].natural_size = 0;
g_object_unref (column);
}
gtk_column_view_measure_across (self, &col_min, &col_nat);
scroll_policy = gtk_scrollable_get_hscroll_policy (GTK_SCROLLABLE (self->listview));
if (scroll_policy == GTK_SCROLL_MINIMUM)
extra = MAX (width - col_min, 0);
else
extra = MAX (width - col_min, col_nat - col_min);
extra = gtk_distribute_natural_allocation (extra, n, sizes);
if (n_expand > 0)
{
expand_size = extra / n_expand;
n_extra = extra % n_expand;
}
else
expand_size = n_extra = 0;
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (gtk_column_view_column_get_visible (column))
{
col_size = sizes[i].minimum_size;
if (gtk_column_view_column_get_expand (column))
{
col_size += expand_size;
if (n_extra > 0)
{
col_size++;
n_extra--;
}
}
sizes[i].minimum_size = col_size;
}
g_object_unref (column);
}
}
static int
gtk_column_view_allocate_columns (GtkColumnView *self,
int width)
{
guint i, n;
int x;
GtkRequestedSize *sizes;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
sizes = g_newa (GtkRequestedSize, n);
gtk_column_view_distribute_width (self, width, sizes);
x = 0;
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column;
int col_size;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (gtk_column_view_column_get_visible (column))
{
col_size = sizes[i].minimum_size;
gtk_column_view_column_allocate (column, x, col_size);
if (self->in_column_reorder && i == self->drag_pos)
gtk_column_view_column_set_header_position (column, self->drag_x);
x += col_size;
}
g_object_unref (column);
}
return x;
}
static void
gtk_column_view_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkColumnView *self = GTK_COLUMN_VIEW (widget);
int full_width, header_height, min, nat, x;
x = gtk_adjustment_get_value (self->hadjustment);
full_width = gtk_column_view_allocate_columns (self, width);
gtk_widget_measure (self->header, GTK_ORIENTATION_VERTICAL, full_width, &min, &nat, NULL, NULL);
if (gtk_scrollable_get_vscroll_policy (GTK_SCROLLABLE (self->listview)) == GTK_SCROLL_MINIMUM)
header_height = min;
else
header_height = nat;
gtk_widget_allocate (self->header, full_width, header_height, -1,
gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (-x, 0)));
gtk_widget_allocate (GTK_WIDGET (self->listview),
full_width, height - header_height, -1,
gsk_transform_translate (NULL, &GRAPHENE_POINT_INIT (-x, header_height)));
gtk_adjustment_configure (self->hadjustment, x, 0, full_width, width * 0.1, width * 0.9, width);
}
static void
gtk_column_view_activate_cb (GtkListView *listview,
guint pos,
GtkColumnView *self)
{
g_signal_emit (self, signals[ACTIVATE], 0, pos);
}
static void
adjustment_value_changed_cb (GtkAdjustment *adjustment,
GtkColumnView *self)
{
gtk_widget_queue_allocate (GTK_WIDGET (self));
}
static void
clear_adjustment (GtkColumnView *self)
{
if (self->hadjustment == NULL)
return;
g_signal_handlers_disconnect_by_func (self->hadjustment, adjustment_value_changed_cb, self);
g_clear_object (&self->hadjustment);
}
static void
gtk_column_view_dispose (GObject *object)
{
GtkColumnView *self = GTK_COLUMN_VIEW (object);
while (g_list_model_get_n_items (G_LIST_MODEL (self->columns)) > 0)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), 0);
gtk_column_view_remove_column (self, column);
g_object_unref (column);
}
g_clear_pointer (&self->header, gtk_widget_unparent);
g_clear_pointer ((GtkWidget **) &self->listview, gtk_widget_unparent);
g_clear_object (&self->factory);
g_clear_object (&self->sorter);
clear_adjustment (self);
G_OBJECT_CLASS (gtk_column_view_parent_class)->dispose (object);
}
static void
gtk_column_view_finalize (GObject *object)
{
GtkColumnView *self = GTK_COLUMN_VIEW (object);
g_object_unref (self->columns);
G_OBJECT_CLASS (gtk_column_view_parent_class)->finalize (object);
}
static void
gtk_column_view_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GtkColumnView *self = GTK_COLUMN_VIEW (object);
switch (property_id)
{
case PROP_COLUMNS:
g_value_set_object (value, self->columns);
break;
case PROP_HADJUSTMENT:
g_value_set_object (value, self->hadjustment);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum (value, gtk_scrollable_get_hscroll_policy (GTK_SCROLLABLE (self->listview)));
break;
case PROP_MODEL:
g_value_set_object (value, gtk_list_view_get_model (self->listview));
break;
case PROP_SHOW_ROW_SEPARATORS:
g_value_set_boolean (value, gtk_list_view_get_show_separators (self->listview));
break;
case PROP_SHOW_COLUMN_SEPARATORS:
g_value_set_boolean (value, self->show_column_separators);
break;
case PROP_VADJUSTMENT:
g_value_set_object (value, gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (self->listview)));
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum (value, gtk_scrollable_get_vscroll_policy (GTK_SCROLLABLE (self->listview)));
break;
case PROP_SORTER:
g_value_set_object (value, self->sorter);
break;
case PROP_SINGLE_CLICK_ACTIVATE:
g_value_set_boolean (value, gtk_column_view_get_single_click_activate (self));
break;
case PROP_REORDERABLE:
g_value_set_boolean (value, gtk_column_view_get_reorderable (self));
break;
case PROP_ENABLE_RUBBERBAND:
g_value_set_boolean (value, gtk_column_view_get_enable_rubberband (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_column_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GtkColumnView *self = GTK_COLUMN_VIEW (object);
GtkAdjustment *adjustment;
switch (property_id)
{
case PROP_HADJUSTMENT:
adjustment = g_value_get_object (value);
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
g_object_ref_sink (adjustment);
if (self->hadjustment != adjustment)
{
clear_adjustment (self);
self->hadjustment = adjustment;
g_signal_connect (adjustment, "value-changed", G_CALLBACK (adjustment_value_changed_cb), self);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_HADJUSTMENT]);
}
break;
case PROP_HSCROLL_POLICY:
if (gtk_scrollable_get_hscroll_policy (GTK_SCROLLABLE (self->listview)) != g_value_get_enum (value))
{
gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (self->listview), g_value_get_enum (value));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_HSCROLL_POLICY]);
}
break;
case PROP_MODEL:
gtk_column_view_set_model (self, g_value_get_object (value));
break;
case PROP_SHOW_ROW_SEPARATORS:
gtk_column_view_set_show_row_separators (self, g_value_get_boolean (value));
break;
case PROP_SHOW_COLUMN_SEPARATORS:
gtk_column_view_set_show_column_separators (self, g_value_get_boolean (value));
break;
case PROP_VADJUSTMENT:
if (gtk_scrollable_get_vadjustment (GTK_SCROLLABLE (self->listview)) != g_value_get_object (value))
{
gtk_scrollable_set_vadjustment (GTK_SCROLLABLE (self->listview), g_value_get_object (value));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_VADJUSTMENT]);
}
break;
case PROP_VSCROLL_POLICY:
if (gtk_scrollable_get_vscroll_policy (GTK_SCROLLABLE (self->listview)) != g_value_get_enum (value))
{
gtk_scrollable_set_vscroll_policy (GTK_SCROLLABLE (self->listview), g_value_get_enum (value));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_VSCROLL_POLICY]);
}
break;
case PROP_SINGLE_CLICK_ACTIVATE:
gtk_column_view_set_single_click_activate (self, g_value_get_boolean (value));
break;
case PROP_REORDERABLE:
gtk_column_view_set_reorderable (self, g_value_get_boolean (value));
break;
case PROP_ENABLE_RUBBERBAND:
gtk_column_view_set_enable_rubberband (self, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gtk_column_view_class_init (GtkColumnViewClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gpointer iface;
widget_class->measure = gtk_column_view_measure;
widget_class->size_allocate = gtk_column_view_allocate;
gobject_class->dispose = gtk_column_view_dispose;
gobject_class->finalize = gtk_column_view_finalize;
gobject_class->get_property = gtk_column_view_get_property;
gobject_class->set_property = gtk_column_view_set_property;
/* GtkScrollable implementation */
iface = g_type_default_interface_peek (GTK_TYPE_SCROLLABLE);
properties[PROP_HADJUSTMENT] =
g_param_spec_override ("hadjustment",
g_object_interface_find_property (iface, "hadjustment"));
properties[PROP_HSCROLL_POLICY] =
g_param_spec_override ("hscroll-policy",
g_object_interface_find_property (iface, "hscroll-policy"));
properties[PROP_VADJUSTMENT] =
g_param_spec_override ("vadjustment",
g_object_interface_find_property (iface, "vadjustment"));
properties[PROP_VSCROLL_POLICY] =
g_param_spec_override ("vscroll-policy",
g_object_interface_find_property (iface, "vscroll-policy"));
/**
* GtkColumnView:columns: (attributes org.gtk.Property.get=gtk_column_view_get_columns)
*
* The list of columns.
*/
properties[PROP_COLUMNS] =
g_param_spec_object ("columns", NULL, NULL,
G_TYPE_LIST_MODEL,
G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkColumnView:model: (attributes org.gtk.Property.get=gtk_column_view_get_model org.gtk.Property.set=gtk_column_view_set_model)
*
* Model for the items displayed.
*/
properties[PROP_MODEL] =
g_param_spec_object ("model", NULL, NULL,
GTK_TYPE_SELECTION_MODEL,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkColumnView:show-row-separators: (attributes org.gtk.Property.get=gtk_column_view_get_show_row_separators org.gtk.Property.set=gtk_column_view_set_show_row_separators)
*
* Show separators between rows.
*/
properties[PROP_SHOW_ROW_SEPARATORS] =
g_param_spec_boolean ("show-row-separators", NULL, NULL,
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkColumnView:show-column-separators: (attributes org.gtk.Property.get=gtk_column_view_get_show_column_separators org.gtk.Property.set=gtk_column_view_set_show_column_separators)
*
* Show separators between columns.
*/
properties[PROP_SHOW_COLUMN_SEPARATORS] =
g_param_spec_boolean ("show-column-separators", NULL, NULL,
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkColumnView:sorter: (attributes org.gtk.Property.get=gtk_column_view_get_sorter)
*
* Sorter with the sorting choices of the user.
*/
properties[PROP_SORTER] =
g_param_spec_object ("sorter", NULL, NULL,
GTK_TYPE_SORTER,
G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkColumnView:single-click-activate: (attributes org.gtk.Property.get=gtk_column_view_get_single_click_activate org.gtk.Property.set=gtk_column_view_set_single_click_activate)
*
* Activate rows on single click and select them on hover.
*/
properties[PROP_SINGLE_CLICK_ACTIVATE] =
g_param_spec_boolean ("single-click-activate", NULL, NULL,
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkColumnView:reorderable: (attributes org.gtk.Property.get=gtk_column_view_get_reorderable org.gtk.Property.set=gtk_column_view_set_reorderable)
*
* Whether columns are reorderable.
*/
properties[PROP_REORDERABLE] =
g_param_spec_boolean ("reorderable", NULL, NULL,
TRUE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkColumnView:enable-rubberband: (attributes org.gtk.Property.get=gtk_column_view_get_enable_rubberband org.gtk.Property.set=gtk_column_view_set_enable_rubberband)
*
* Allow rubberband selection.
*/
properties[PROP_ENABLE_RUBBERBAND] =
g_param_spec_boolean ("enable-rubberband", NULL, NULL,
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, N_PROPS, properties);
/**
* GtkColumnView::activate:
* @self: The `GtkColumnView`
* @position: position of item to activate
*
* Emitted when a row has been activated by the user, usually via activating
* the GtkListBase|list.activate-item action.
*
* This allows for a convenient way to handle activation in a columnview.
* See [method@Gtk.ListItem.set_activatable] for details on how to use this
* signal.
*/
signals[ACTIVATE] =
g_signal_new (I_("activate"),
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__UINT,
G_TYPE_NONE, 1,
G_TYPE_UINT);
g_signal_set_va_marshaller (signals[ACTIVATE],
G_TYPE_FROM_CLASS (gobject_class),
g_cclosure_marshal_VOID__UINTv);
gtk_widget_class_set_css_name (widget_class, I_("columnview"));
gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_TREE_GRID);
}
static void update_column_resize (GtkColumnView *self,
double x);
static void update_column_reorder (GtkColumnView *self,
double x);
static gboolean
autoscroll_cb (GtkWidget *widget,
GdkFrameClock *frame_clock,
gpointer data)
{
GtkColumnView *self = data;
gtk_adjustment_set_value (self->hadjustment,
gtk_adjustment_get_value (self->hadjustment) + self->autoscroll_delta);
self->autoscroll_x += self->autoscroll_delta;
if (self->in_column_resize)
update_column_resize (self, self->autoscroll_x);
else if (self->in_column_reorder)
update_column_reorder (self, self->autoscroll_x);
return G_SOURCE_CONTINUE;
}
static void
add_autoscroll (GtkColumnView *self,
double x,
double delta)
{
self->autoscroll_x = x;
self->autoscroll_delta = delta;
if (self->autoscroll_id == 0)
self->autoscroll_id = gtk_widget_add_tick_callback (GTK_WIDGET (self), autoscroll_cb, self, NULL);
}
static void
remove_autoscroll (GtkColumnView *self)
{
if (self->autoscroll_id != 0)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (self), self->autoscroll_id);
self->autoscroll_id = 0;
}
}
#define SCROLL_EDGE_SIZE 30
static void
update_autoscroll (GtkColumnView *self,
double x)
{
double width;
double delta;
double vx, vy;
/* x is in header coordinates */
gtk_widget_translate_coordinates (self->header, GTK_WIDGET (self), x, 0, &vx, &vy);
width = gtk_widget_get_width (GTK_WIDGET (self));
if (vx < SCROLL_EDGE_SIZE)
delta = - (SCROLL_EDGE_SIZE - vx)/3.0;
else if (width - vx < SCROLL_EDGE_SIZE)
delta = (SCROLL_EDGE_SIZE - (width - vx))/3.0;
else
delta = 0;
if (gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL)
delta = - delta;
if (delta != 0)
add_autoscroll (self, x, delta);
else
remove_autoscroll (self);
}
#define DRAG_WIDTH 8
static gboolean
gtk_column_view_in_resize_rect (GtkColumnView *self,
GtkColumnViewColumn *column,
double x,
double y)
{
GtkWidget *header;
graphene_rect_t rect;
int width;
header = gtk_column_view_column_get_header (column);
if (!gtk_widget_compute_bounds (header, self->header, &rect))
return FALSE;
gtk_column_view_column_get_allocation (column, NULL, &width);
rect.size.width = width;
rect.origin.x += rect.size.width - DRAG_WIDTH / 2;
rect.size.width = DRAG_WIDTH;
return graphene_rect_contains_point (&rect, &(graphene_point_t) { x, y});
}
static gboolean
gtk_column_view_in_header (GtkColumnView *self,
GtkColumnViewColumn *column,
double x,
double y)
{
GtkWidget *header;
graphene_rect_t rect;
header = gtk_column_view_column_get_header (column);
if (!gtk_widget_compute_bounds (header, self->header, &rect))
return FALSE;
return graphene_rect_contains_point (&rect, &(graphene_point_t) { x, y});
}
static void
set_resize_cursor (GtkColumnView *self,
gboolean set)
{
int i, n;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
GtkWidget *header = gtk_column_view_column_get_header (column);
if (set)
gtk_widget_set_cursor_from_name (header, "col-resize");
else
gtk_widget_set_cursor (header, NULL);
g_object_unref (column);
}
}
static void
header_drag_begin (GtkGestureDrag *gesture,
double start_x,
double start_y,
GtkColumnView *self)
{
int i, n;
self->drag_pos = -1;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = n - 1; !self->in_column_resize && i >= 0; i--)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (!gtk_column_view_column_get_visible (column))
{
g_object_unref (column);
continue;
}
if (i + 1 < n &&
gtk_column_view_column_get_resizable (column) &&
gtk_column_view_in_resize_rect (self, column, start_x, start_y))
{
int size;
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
gtk_widget_grab_focus (GTK_WIDGET (self));
gtk_column_view_column_get_allocation (column, NULL, &size);
gtk_column_view_column_set_fixed_width (column, size);
self->drag_pos = i;
self->drag_x = start_x - size;
self->in_column_resize = TRUE;
set_resize_cursor (self, TRUE);
g_object_unref (column);
break;
}
g_object_unref (column);
}
for (i = 0; !self->in_column_resize && i < n; i++)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (!gtk_column_view_column_get_visible (column))
{
g_object_unref (column);
continue;
}
if (gtk_column_view_get_reorderable (self) &&
gtk_column_view_in_header (self, column, start_x, start_y))
{
int pos;
gtk_column_view_column_get_allocation (column, &pos, NULL);
self->drag_pos = i;
self->drag_offset = start_x - pos;
g_object_unref (column);
break;
}
g_object_unref (column);
}
}
static void
header_drag_end (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkColumnView *self)
{
double start_x, x;
gtk_gesture_drag_get_start_point (gesture, &start_x, NULL);
x = start_x + offset_x;
remove_autoscroll (self);
if (self->in_column_resize)
{
set_resize_cursor (self, FALSE);
self->in_column_resize = FALSE;
}
else if (self->in_column_reorder)
{
GdkEventSequence *sequence;
GtkColumnViewColumn *column;
GtkWidget *header;
int i;
self->in_column_reorder = FALSE;
if (self->drag_pos == -1)
return;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), self->drag_pos);
header = gtk_column_view_column_get_header (column);
gtk_widget_remove_css_class (header, "dnd");
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
{
g_object_unref (column);
return;
}
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->columns)); i++)
{
GtkColumnViewColumn *col = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (gtk_column_view_column_get_visible (col))
{
int pos, size;
gtk_column_view_column_get_allocation (col, &pos, &size);
if (pos <= x && x <= pos + size)
{
gtk_column_view_insert_column (self, i, column);
g_object_unref (col);
break;
}
}
g_object_unref (col);
}
g_object_unref (column);
}
}
static void
update_column_resize (GtkColumnView *self,
double x)
{
GtkColumnViewColumn *column;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), self->drag_pos);
gtk_column_view_column_set_fixed_width (column, MAX (x - self->drag_x, 0));
g_object_unref (column);
}
static void
update_column_reorder (GtkColumnView *self,
double x)
{
GtkColumnViewColumn *column;
int width;
int size;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), self->drag_pos);
width = gtk_widget_get_allocated_width (GTK_WIDGET (self->header));
gtk_column_view_column_get_allocation (column, NULL, &size);
self->drag_x = CLAMP (x - self->drag_offset, 0, width - size);
gtk_widget_queue_allocate (GTK_WIDGET (self));
gtk_column_view_column_queue_resize (column);
g_object_unref (column);
}
static void
header_drag_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkColumnView *self)
{
GdkEventSequence *sequence;
double start_x, x;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
return;
if (self->drag_pos == -1)
return;
if (!self->in_column_resize && !self->in_column_reorder)
{
if (gtk_drag_check_threshold_double (GTK_WIDGET (self), 0, 0, offset_x, 0))
{
GtkColumnViewColumn *column;
GtkWidget *header;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), self->drag_pos);
header = gtk_column_view_column_get_header (column);
gtk_widget_insert_after (header, self->header, gtk_widget_get_last_child (self->header));
gtk_widget_add_css_class (header, "dnd");
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
gtk_widget_grab_focus (GTK_WIDGET (self));
self->in_column_reorder = TRUE;
g_object_unref (column);
}
}
gtk_gesture_drag_get_start_point (gesture, &start_x, NULL);
x = start_x + offset_x;
if (self->in_column_resize)
update_column_resize (self, x);
else if (self->in_column_reorder)
update_column_reorder (self, x);
if (self->in_column_resize || self->in_column_reorder)
update_autoscroll (self, x);
}
static void
header_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkColumnView *self)
{
gboolean cursor_set = FALSE;
int i, n;
if (self->in_column_resize)
return;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = 0; i < n; i++)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
if (!gtk_column_view_column_get_visible (column))
{
g_object_unref (column);
continue;
}
if (i + 1 < n &&
gtk_column_view_column_get_resizable (column) &&
gtk_column_view_in_resize_rect (self, column, x, y))
{
gtk_widget_set_cursor_from_name (self->header, "col-resize");
cursor_set = TRUE;
}
g_object_unref (column);
}
if (!cursor_set)
gtk_widget_set_cursor (self->header, NULL);
}
static gboolean
header_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType modifiers,
GtkColumnView *self)
{
if (self->in_column_reorder)
{
if (keyval == GDK_KEY_Escape)
gtk_gesture_set_state (self->drag_gesture, GTK_EVENT_SEQUENCE_DENIED);
return TRUE;
}
return FALSE;
}
static void
header_pressed (GtkGestureClick *gesture,
int n_press,
double x,
double y,
GtkColumnView *self)
{
int i, n;
if (n_press != 2)
return;
n = g_list_model_get_n_items (G_LIST_MODEL (self->columns));
for (i = n - 1; i >= 0; i--)
{
GtkColumnViewColumn *column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
g_object_unref (column);
if (i + 1 < n &&
gtk_column_view_column_get_resizable (column) &&
gtk_column_view_in_resize_rect (self, column, x, y))
{
gtk_gesture_set_state (self->drag_gesture, GTK_EVENT_SEQUENCE_DENIED);
gtk_column_view_column_set_fixed_width (column, -1);
break;
}
}
}
static void
gtk_column_view_drag_motion (GtkDropControllerMotion *motion,
double x,
double y,
gpointer unused)
{
GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (motion));
GtkColumnView *self = GTK_COLUMN_VIEW (widget);
double hx, hy;
gtk_widget_translate_coordinates (widget, self->header, x, 0, &hx, &hy);
update_autoscroll (GTK_COLUMN_VIEW (widget), hx);
}
static void
gtk_column_view_drag_leave (GtkDropControllerMotion *motion,
gpointer unused)
{
GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (motion));
remove_autoscroll (GTK_COLUMN_VIEW (widget));
}
static void
gtk_column_view_init (GtkColumnView *self)
{
GtkEventController *controller;
self->columns = g_list_store_new (GTK_TYPE_COLUMN_VIEW_COLUMN);
self->header = gtk_list_item_widget_new (NULL, "header", GTK_ACCESSIBLE_ROLE_ROW);
gtk_widget_set_can_focus (self->header, FALSE);
gtk_widget_set_layout_manager (self->header, gtk_column_view_layout_new (self));
gtk_widget_set_parent (self->header, GTK_WIDGET (self));
controller = GTK_EVENT_CONTROLLER (gtk_gesture_click_new ());
g_signal_connect (controller, "pressed", G_CALLBACK (header_pressed), self);
gtk_event_controller_set_propagation_phase (controller, GTK_PHASE_CAPTURE);
gtk_widget_add_controller (self->header, controller);
controller = GTK_EVENT_CONTROLLER (gtk_gesture_drag_new ());
g_signal_connect (controller, "drag-begin", G_CALLBACK (header_drag_begin), self);
g_signal_connect (controller, "drag-update", G_CALLBACK (header_drag_update), self);
g_signal_connect (controller, "drag-end", G_CALLBACK (header_drag_end), self);
gtk_event_controller_set_propagation_phase (controller, GTK_PHASE_CAPTURE);
gtk_widget_add_controller (self->header, controller);
self->drag_gesture = GTK_GESTURE (controller);
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "motion", G_CALLBACK (header_motion), self);
gtk_widget_add_controller (self->header, controller);
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed", G_CALLBACK (header_key_pressed), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
controller = gtk_drop_controller_motion_new ();
g_signal_connect (controller, "motion", G_CALLBACK (gtk_column_view_drag_motion), NULL);
g_signal_connect (controller, "leave", G_CALLBACK (gtk_column_view_drag_leave), NULL);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
self->sorter = GTK_SORTER (gtk_column_view_sorter_new ());
self->factory = gtk_column_list_item_factory_new (self);
self->listview = GTK_LIST_VIEW (g_object_new (GTK_TYPE_COLUMN_LIST_VIEW, NULL));
gtk_list_view_set_factory (self->listview, GTK_LIST_ITEM_FACTORY (self->factory));
gtk_widget_set_hexpand (GTK_WIDGET (self->listview), TRUE);
gtk_widget_set_vexpand (GTK_WIDGET (self->listview), TRUE);
g_signal_connect (self->listview, "activate", G_CALLBACK (gtk_column_view_activate_cb), self);
gtk_widget_set_parent (GTK_WIDGET (self->listview), GTK_WIDGET (self));
gtk_css_node_add_class (gtk_widget_get_css_node (GTK_WIDGET (self)),
g_quark_from_static_string (I_("view")));
gtk_widget_set_overflow (GTK_WIDGET (self), GTK_OVERFLOW_HIDDEN);
gtk_widget_set_focusable (GTK_WIDGET (self), TRUE);
self->reorderable = TRUE;
}
/**
* gtk_column_view_new:
* @model: (nullable) (transfer full): the list model to use
*
* Creates a new `GtkColumnView`.
*
* You most likely want to call [method@Gtk.ColumnView.append_column]
* to add columns next.
*
* Returns: a new `GtkColumnView`
**/
GtkWidget *
gtk_column_view_new (GtkSelectionModel *model)
{
GtkWidget *result;
g_return_val_if_fail (model == NULL || GTK_IS_SELECTION_MODEL (model), NULL);
result = g_object_new (GTK_TYPE_COLUMN_VIEW,
"model", model,
NULL);
/* consume the reference */
g_clear_object (&model);
return result;
}
/**
* gtk_column_view_get_model: (attributes org.gtk.Method.get_property=model)
* @self: a `GtkColumnView`
*
* Gets the model that's currently used to read the items displayed.
*
* Returns: (nullable) (transfer none): The model in use
*/
GtkSelectionModel *
gtk_column_view_get_model (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), NULL);
return gtk_list_view_get_model (self->listview);
}
/**
* gtk_column_view_set_model: (attributes org.gtk.Method.set_property=model)
* @self: a `GtkColumnView`
* @model: (nullable) (transfer none): the model to use
*
* Sets the model to use.
*
* This must be a [iface@Gtk.SelectionModel].
*/
void
gtk_column_view_set_model (GtkColumnView *self,
GtkSelectionModel *model)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
g_return_if_fail (model == NULL || GTK_IS_SELECTION_MODEL (model));
if (gtk_list_view_get_model (self->listview) == model)
return;
gtk_list_view_set_model (self->listview, model);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
}
/**
* gtk_column_view_get_columns: (attributes org.gtk.Method.get_property=columns)
* @self: a `GtkColumnView`
*
* Gets the list of columns in this column view.
*
* This list is constant over the lifetime of @self and can be used to
* monitor changes to the columns of @self by connecting to the
* ::items-changed signal.
*
* Returns: (transfer none): The list managing the columns
*/
GListModel *
gtk_column_view_get_columns (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), NULL);
return G_LIST_MODEL (self->columns);
}
/**
* gtk_column_view_set_show_row_separators: (attributes org.gtk.Method.set_property=show-row-separators)
* @self: a `GtkColumnView`
* @show_row_separators: %TRUE to show row separators
*
* Sets whether the list should show separators
* between rows.
*/
void
gtk_column_view_set_show_row_separators (GtkColumnView *self,
gboolean show_row_separators)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
if (gtk_list_view_get_show_separators (self->listview) == show_row_separators)
return;
gtk_list_view_set_show_separators (self->listview, show_row_separators);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SHOW_ROW_SEPARATORS]);
}
/**
* gtk_column_view_get_show_row_separators: (attributes org.gtk.Method.get_property=show-row-separators)
* @self: a `GtkColumnView`
*
* Returns whether the list should show separators
* between rows.
*
* Returns: %TRUE if the list shows separators
*/
gboolean
gtk_column_view_get_show_row_separators (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), FALSE);
return gtk_list_view_get_show_separators (self->listview);
}
/**
* gtk_column_view_set_show_column_separators: (attributes org.gtk.Method.set_property=show-column-separators)
* @self: a `GtkColumnView`
* @show_column_separators: %TRUE to show column separators
*
* Sets whether the list should show separators
* between columns.
*/
void
gtk_column_view_set_show_column_separators (GtkColumnView *self,
gboolean show_column_separators)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
if (self->show_column_separators == show_column_separators)
return;
self->show_column_separators = show_column_separators;
if (show_column_separators)
gtk_widget_add_css_class (GTK_WIDGET (self), "column-separators");
else
gtk_widget_remove_css_class (GTK_WIDGET (self), "column-separators");
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SHOW_COLUMN_SEPARATORS]);
}
/**
* gtk_column_view_get_show_column_separators: (attributes org.gtk.Method.get_property=show-column-separators)
* @self: a `GtkColumnView`
*
* Returns whether the list should show separators
* between columns.
*
* Returns: %TRUE if the list shows column separators
*/
gboolean
gtk_column_view_get_show_column_separators (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), FALSE);
return self->show_column_separators;
}
/**
* gtk_column_view_append_column:
* @self: a `GtkColumnView`
* @column: a `GtkColumnViewColumn` that hasn't been added to a
* `GtkColumnView` yet
*
* Appends the @column to the end of the columns in @self.
*/
void
gtk_column_view_append_column (GtkColumnView *self,
GtkColumnViewColumn *column)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
g_return_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (column));
g_return_if_fail (gtk_column_view_column_get_column_view (column) == NULL);
gtk_column_view_column_set_column_view (column, self);
g_list_store_append (self->columns, column);
}
/**
* gtk_column_view_remove_column:
* @self: a `GtkColumnView`
* @column: a `GtkColumnViewColumn` that's part of @self
*
* Removes the @column from the list of columns of @self.
*/
void
gtk_column_view_remove_column (GtkColumnView *self,
GtkColumnViewColumn *column)
{
guint i;
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
g_return_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (column));
g_return_if_fail (gtk_column_view_column_get_column_view (column) == self);
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->columns)); i++)
{
GtkColumnViewColumn *item = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
g_object_unref (item);
if (item == column)
break;
}
gtk_column_view_sorter_remove_column (GTK_COLUMN_VIEW_SORTER (self->sorter), column);
gtk_column_view_column_set_column_view (column, NULL);
g_list_store_remove (self->columns, i);
}
/**
* gtk_column_view_insert_column:
* @self: a `GtkColumnView`
* @position: the position to insert @column at
* @column: the `GtkColumnViewColumn` to insert
*
* Inserts a column at the given position in the columns of @self.
*
* If @column is already a column of @self, it will be repositioned.
*/
void
gtk_column_view_insert_column (GtkColumnView *self,
guint position,
GtkColumnViewColumn *column)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
g_return_if_fail (GTK_IS_COLUMN_VIEW_COLUMN (column));
g_return_if_fail (gtk_column_view_column_get_column_view (column) == NULL ||
gtk_column_view_column_get_column_view (column) == self);
g_return_if_fail (position <= g_list_model_get_n_items (G_LIST_MODEL (self->columns)));
int old_position = -1;
g_object_ref (column);
if (gtk_column_view_column_get_column_view (column) == self)
{
guint i;
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->columns)); i++)
{
GtkColumnViewColumn *item = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
g_object_unref (item);
if (item == column)
{
old_position = i;
g_list_store_remove (self->columns, i);
break;
}
}
}
g_list_store_insert (self->columns, position, column);
gtk_column_view_column_set_column_view (column, self);
if (old_position != -1 && position != old_position)
gtk_column_view_column_set_position (column, position);
gtk_column_view_column_queue_resize (column);
g_object_unref (column);
}
void
gtk_column_view_measure_across (GtkColumnView *self,
int *minimum,
int *natural)
{
guint i;
int min, nat;
min = 0;
nat = 0;
for (i = 0; i < g_list_model_get_n_items (G_LIST_MODEL (self->columns)); i++)
{
GtkColumnViewColumn *column;
int col_min, col_nat;
column = g_list_model_get_item (G_LIST_MODEL (self->columns), i);
gtk_column_view_column_measure (column, &col_min, &col_nat);
min += col_min;
nat += col_nat;
g_object_unref (column);
}
*minimum = min;
*natural = nat;
}
GtkListItemWidget *
gtk_column_view_get_header_widget (GtkColumnView *self)
{
return GTK_LIST_ITEM_WIDGET (self->header);
}
GtkListView *
gtk_column_view_get_list_view (GtkColumnView *self)
{
return GTK_LIST_VIEW (self->listview);
}
/**
* gtk_column_view_get_sorter: (attributes org.gtk.Method.get_property=sorter)
* @self: a `GtkColumnView`
*
* Returns a special sorter that reflects the users sorting
* choices in the column view.
*
* To allow users to customizable sorting by clicking on column
* headers, this sorter needs to be set on the sort model underneath
* the model that is displayed by the view.
*
* See [method@Gtk.ColumnViewColumn.set_sorter] for setting up
* per-column sorting.
*
* Here is an example:
* ```c
* gtk_column_view_column_set_sorter (column, sorter);
* gtk_column_view_append_column (view, column);
* sorter = g_object_ref (gtk_column_view_get_sorter (view)));
* model = gtk_sort_list_model_new (store, sorter);
* selection = gtk_no_selection_new (model);
* gtk_column_view_set_model (view, selection);
* ```
*
* Returns: (nullable) (transfer none): the `GtkSorter` of @self
*/
GtkSorter *
gtk_column_view_get_sorter (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), NULL);
return self->sorter;
}
/**
* gtk_column_view_sort_by_column:
* @self: a `GtkColumnView`
* @column: (nullable): the `GtkColumnViewColumn` to sort by
* @direction: the direction to sort in
*
* Sets the sorting of the view.
*
* This function should be used to set up the initial sorting.
* At runtime, users can change the sorting of a column view
* by clicking on the list headers.
*
* This call only has an effect if the sorter returned by
* [method@Gtk.ColumnView.get_sorter] is set on a sort model,
* and [method@Gtk.ColumnViewColumn.set_sorter] has been called
* on @column to associate a sorter with the column.
*
* If @column is %NULL, the view will be unsorted.
*/
void
gtk_column_view_sort_by_column (GtkColumnView *self,
GtkColumnViewColumn *column,
GtkSortType direction)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
g_return_if_fail (column == NULL || GTK_IS_COLUMN_VIEW_COLUMN (column));
g_return_if_fail (column == NULL || gtk_column_view_column_get_column_view (column) == self);
if (column == NULL)
gtk_column_view_sorter_clear (GTK_COLUMN_VIEW_SORTER (self->sorter));
else
gtk_column_view_sorter_set_column (GTK_COLUMN_VIEW_SORTER (self->sorter),
column,
direction == GTK_SORT_DESCENDING);
}
/**
* gtk_column_view_set_single_click_activate: (attributes org.gtk.Method.set_property=single-click-activate)
* @self: a `GtkColumnView`
* @single_click_activate: %TRUE to activate items on single click
*
* Sets whether rows should be activated on single click and
* selected on hover.
*/
void
gtk_column_view_set_single_click_activate (GtkColumnView *self,
gboolean single_click_activate)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
if (single_click_activate == gtk_list_view_get_single_click_activate (self->listview))
return;
gtk_list_view_set_single_click_activate (self->listview, single_click_activate);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SINGLE_CLICK_ACTIVATE]);
}
/**
* gtk_column_view_get_single_click_activate: (attributes org.gtk.Method.get_property=single-click-activate)
* @self: a `GtkColumnView`
*
* Returns whether rows will be activated on single click and
* selected on hover.
*
* Returns: %TRUE if rows are activated on single click
*/
gboolean
gtk_column_view_get_single_click_activate (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), FALSE);
return gtk_list_view_get_single_click_activate (self->listview);
}
/**
* gtk_column_view_set_reorderable: (attributes org.gtk.Method.set_property=reorderable)
* @self: a `GtkColumnView`
* @reorderable: whether columns should be reorderable
*
* Sets whether columns should be reorderable by dragging.
*/
void
gtk_column_view_set_reorderable (GtkColumnView *self,
gboolean reorderable)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
if (self->reorderable == reorderable)
return;
self->reorderable = reorderable;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_REORDERABLE]);
}
/**
* gtk_column_view_get_reorderable: (attributes org.gtk.Method.get_property=reorderable)
* @self: a `GtkColumnView`
*
* Returns whether columns are reorderable.
*
* Returns: %TRUE if columns are reorderable
*/
gboolean
gtk_column_view_get_reorderable (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), TRUE);
return self->reorderable;
}
/**
* gtk_column_view_set_enable_rubberband: (attributes org.gtk.Method.set_property=enable-rubberband)
* @self: a `GtkColumnView`
* @enable_rubberband: %TRUE to enable rubberband selection
*
* Sets whether selections can be changed by dragging with the mouse.
*/
void
gtk_column_view_set_enable_rubberband (GtkColumnView *self,
gboolean enable_rubberband)
{
g_return_if_fail (GTK_IS_COLUMN_VIEW (self));
if (enable_rubberband == gtk_list_view_get_enable_rubberband (self->listview))
return;
gtk_list_view_set_enable_rubberband (self->listview, enable_rubberband);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ENABLE_RUBBERBAND]);
}
/**
* gtk_column_view_get_enable_rubberband: (attributes org.gtk.Method.get_property=enable-rubberband)
* @self: a `GtkColumnView`
*
* Returns whether rows can be selected by dragging with the mouse.
*
* Returns: %TRUE if rubberband selection is enabled
*/
gboolean
gtk_column_view_get_enable_rubberband (GtkColumnView *self)
{
g_return_val_if_fail (GTK_IS_COLUMN_VIEW (self), FALSE);
return gtk_list_view_get_enable_rubberband (self->listview);
}
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