412 lines
13 KiB
C
412 lines
13 KiB
C
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/*
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* Copyright © 2019 Benjamin Otte
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkcolumnviewcellwidgetprivate.h"
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#include "gtkcolumnviewcellprivate.h"
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#include "gtkcolumnviewcolumnprivate.h"
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#include "gtkcolumnviewrowwidgetprivate.h"
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#include "gtkcssboxesprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtklistfactorywidgetprivate.h"
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#include "gtkprivate.h"
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#include "gtkwidgetprivate.h"
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struct _GtkColumnViewCellWidget
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{
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GtkListItemWidget parent_instance;
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GtkColumnViewColumn *column;
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/* This list isn't sorted - next/prev refer to list elements, not rows in the list */
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GtkColumnViewCellWidget *next_cell;
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GtkColumnViewCellWidget *prev_cell;
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};
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struct _GtkColumnViewCellWidgetClass
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{
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GtkListItemWidgetClass parent_class;
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};
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G_DEFINE_TYPE (GtkColumnViewCellWidget, gtk_column_view_cell_widget, GTK_TYPE_LIST_FACTORY_WIDGET)
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static gboolean
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gtk_column_view_cell_widget_focus (GtkWidget *widget,
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GtkDirectionType direction)
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{
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GtkWidget *child = gtk_widget_get_first_child (widget);
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if (gtk_widget_get_focus_child (widget))
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{
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/* focus is in the child */
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if (direction == GTK_DIR_TAB_BACKWARD)
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return gtk_widget_grab_focus_self (widget);
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else
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return FALSE;
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}
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else if (gtk_widget_is_focus (widget))
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{
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/* The widget has focus */
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if (direction == GTK_DIR_TAB_FORWARD)
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{
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if (child)
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return gtk_widget_child_focus (child, direction);
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}
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return FALSE;
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}
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else
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{
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/* focus coming in from the outside */
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if (direction == GTK_DIR_TAB_BACKWARD)
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{
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if (child &&
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gtk_widget_child_focus (child, direction))
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return TRUE;
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return gtk_widget_grab_focus_self (widget);
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}
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else
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{
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if (gtk_widget_grab_focus_self (widget))
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return TRUE;
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if (child &&
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gtk_widget_child_focus (child, direction))
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return TRUE;
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return FALSE;
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}
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}
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}
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static gboolean
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gtk_column_view_cell_widget_grab_focus (GtkWidget *widget)
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{
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GtkWidget *child;
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if (GTK_WIDGET_CLASS (gtk_column_view_cell_widget_parent_class)->grab_focus (widget))
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return TRUE;
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child = gtk_widget_get_first_child (widget);
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if (child && gtk_widget_grab_focus (child))
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return TRUE;
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return FALSE;
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}
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static gpointer
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gtk_column_view_cell_widget_create_object (GtkListFactoryWidget *fw)
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{
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return gtk_column_view_cell_new ();
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}
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static void
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gtk_column_view_cell_widget_setup_object (GtkListFactoryWidget *fw,
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gpointer object)
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{
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GtkColumnViewCellWidget *self = GTK_COLUMN_VIEW_CELL_WIDGET (fw);
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GtkColumnViewCell *cell = object;
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GTK_LIST_FACTORY_WIDGET_CLASS (gtk_column_view_cell_widget_parent_class)->setup_object (fw, object);
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cell->cell = self;
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gtk_column_view_cell_widget_set_child (GTK_COLUMN_VIEW_CELL_WIDGET (self), cell->child);
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gtk_widget_set_focusable (GTK_WIDGET (self), cell->focusable);
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gtk_column_view_cell_do_notify (cell,
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gtk_list_item_base_get_item (GTK_LIST_ITEM_BASE (self)) != NULL,
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gtk_list_item_base_get_position (GTK_LIST_ITEM_BASE (self)) != GTK_INVALID_LIST_POSITION,
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gtk_list_item_base_get_selected (GTK_LIST_ITEM_BASE (self)));
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}
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static void
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gtk_column_view_cell_widget_teardown_object (GtkListFactoryWidget *fw,
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gpointer object)
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{
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GtkColumnViewCellWidget *self = GTK_COLUMN_VIEW_CELL_WIDGET (fw);
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GtkColumnViewCell *cell = object;
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GTK_LIST_FACTORY_WIDGET_CLASS (gtk_column_view_cell_widget_parent_class)->teardown_object (fw, object);
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cell->cell = NULL;
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gtk_column_view_cell_widget_set_child (GTK_COLUMN_VIEW_CELL_WIDGET (self), NULL);
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gtk_widget_set_focusable (GTK_WIDGET (self), FALSE);
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gtk_column_view_cell_do_notify (cell,
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gtk_list_item_base_get_item (GTK_LIST_ITEM_BASE (self)) != NULL,
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gtk_list_item_base_get_position (GTK_LIST_ITEM_BASE (self)) != GTK_INVALID_LIST_POSITION,
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gtk_list_item_base_get_selected (GTK_LIST_ITEM_BASE (self)));
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}
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static void
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gtk_column_view_cell_widget_update_object (GtkListFactoryWidget *fw,
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gpointer object,
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guint position,
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gpointer item,
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gboolean selected)
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{
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GtkColumnViewCellWidget *self = GTK_COLUMN_VIEW_CELL_WIDGET (fw);
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GtkListItemBase *base = GTK_LIST_ITEM_BASE (self);
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GtkColumnViewCell *cell = object;
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/* Track notify manually instead of freeze/thaw_notify for performance reasons. */
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gboolean notify_item = FALSE, notify_position = FALSE, notify_selected = FALSE;
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/* FIXME: It's kinda evil to notify external objects from here... */
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notify_item = gtk_list_item_base_get_item (base) != item;
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notify_position = gtk_list_item_base_get_position (base) != position;
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notify_selected = gtk_list_item_base_get_selected (base) != selected;
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GTK_LIST_FACTORY_WIDGET_CLASS (gtk_column_view_cell_widget_parent_class)->update_object (fw,
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object,
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position,
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item,
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selected);
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if (cell)
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gtk_column_view_cell_do_notify (cell, notify_item, notify_position, notify_selected);
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}
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static int
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unadjust_width (GtkWidget *widget,
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int width)
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{
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GtkCssBoxes boxes;
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if (width <= -1)
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return -1;
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gtk_css_boxes_init_border_box (&boxes,
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gtk_css_node_get_style (gtk_widget_get_css_node (widget)),
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0, 0,
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width, 100000);
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return MAX (0, floor (gtk_css_boxes_get_content_rect (&boxes)->size.width));
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}
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static void
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gtk_column_view_cell_widget_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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GtkColumnViewCellWidget *cell = GTK_COLUMN_VIEW_CELL_WIDGET (widget);
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GtkWidget *child = gtk_widget_get_first_child (widget);
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int fixed_width, unadj_width;
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fixed_width = gtk_column_view_column_get_fixed_width (cell->column);
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unadj_width = unadjust_width (widget, fixed_width);
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if (orientation == GTK_ORIENTATION_VERTICAL)
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{
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if (fixed_width > -1)
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{
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int min;
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if (for_size == -1)
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for_size = unadj_width;
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else
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for_size = MIN (for_size, unadj_width);
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gtk_widget_measure (child, GTK_ORIENTATION_HORIZONTAL, -1, &min, NULL, NULL, NULL);
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for_size = MAX (for_size, min);
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}
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}
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if (child)
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gtk_widget_measure (child, orientation, for_size, minimum, natural, minimum_baseline, natural_baseline);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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if (fixed_width > -1)
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{
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*minimum = 0;
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*natural = unadj_width;
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}
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}
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}
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static void
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gtk_column_view_cell_widget_size_allocate (GtkWidget *widget,
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int width,
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int height,
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int baseline)
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{
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GtkWidget *child = gtk_widget_get_first_child (widget);
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if (child)
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{
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int min;
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gtk_widget_measure (child, GTK_ORIENTATION_HORIZONTAL, height, &min, NULL, NULL, NULL);
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gtk_widget_allocate (child, MAX (min, width), height, baseline, NULL);
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}
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}
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static void
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gtk_column_view_cell_widget_dispose (GObject *object)
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{
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GtkColumnViewCellWidget *self = GTK_COLUMN_VIEW_CELL_WIDGET (object);
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if (self->column)
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{
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gtk_column_view_column_remove_cell (self->column, self);
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if (self->prev_cell)
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self->prev_cell->next_cell = self->next_cell;
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if (self->next_cell)
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self->next_cell->prev_cell = self->prev_cell;
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self->prev_cell = NULL;
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self->next_cell = NULL;
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g_clear_object (&self->column);
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}
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G_OBJECT_CLASS (gtk_column_view_cell_widget_parent_class)->dispose (object);
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}
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static GtkSizeRequestMode
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gtk_column_view_cell_widget_get_request_mode (GtkWidget *widget)
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{
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GtkWidget *child = gtk_widget_get_first_child (widget);
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if (child)
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return gtk_widget_get_request_mode (child);
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else
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return GTK_SIZE_REQUEST_CONSTANT_SIZE;
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}
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static void
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gtk_column_view_cell_widget_class_init (GtkColumnViewCellWidgetClass *klass)
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{
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GtkListFactoryWidgetClass *factory_class = GTK_LIST_FACTORY_WIDGET_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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factory_class->create_object = gtk_column_view_cell_widget_create_object;
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factory_class->setup_object = gtk_column_view_cell_widget_setup_object;
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factory_class->update_object = gtk_column_view_cell_widget_update_object;
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factory_class->teardown_object = gtk_column_view_cell_widget_teardown_object;
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widget_class->focus = gtk_column_view_cell_widget_focus;
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widget_class->grab_focus = gtk_column_view_cell_widget_grab_focus;
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widget_class->measure = gtk_column_view_cell_widget_measure;
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widget_class->size_allocate = gtk_column_view_cell_widget_size_allocate;
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widget_class->get_request_mode = gtk_column_view_cell_widget_get_request_mode;
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gobject_class->dispose = gtk_column_view_cell_widget_dispose;
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gtk_widget_class_set_css_name (widget_class, I_("cell"));
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gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_GRID_CELL);
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}
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static void
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gtk_column_view_cell_widget_resize_func (GtkWidget *widget)
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{
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GtkColumnViewCellWidget *self = GTK_COLUMN_VIEW_CELL_WIDGET (widget);
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if (self->column)
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gtk_column_view_column_queue_resize (self->column);
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}
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static void
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gtk_column_view_cell_widget_init (GtkColumnViewCellWidget *self)
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{
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GtkWidget *widget = GTK_WIDGET (self);
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gtk_widget_set_focusable (widget, FALSE);
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gtk_widget_set_overflow (widget, GTK_OVERFLOW_HIDDEN);
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/* FIXME: Figure out if setting the manager class to INVALID should work */
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gtk_widget_set_layout_manager (widget, NULL);
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widget->priv->resize_func = gtk_column_view_cell_widget_resize_func;
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}
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GtkWidget *
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gtk_column_view_cell_widget_new (GtkColumnViewColumn *column,
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gboolean inert)
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{
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GtkColumnViewCellWidget *self;
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self = g_object_new (GTK_TYPE_COLUMN_VIEW_CELL_WIDGET,
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"factory", inert ? NULL : gtk_column_view_column_get_factory (column),
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NULL);
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self->column = g_object_ref (column);
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self->next_cell = gtk_column_view_column_get_first_cell (self->column);
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if (self->next_cell)
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self->next_cell->prev_cell = self;
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gtk_column_view_column_add_cell (self->column, self);
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|
|
|
||
|
|
return GTK_WIDGET (self);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
gtk_column_view_cell_widget_remove (GtkColumnViewCellWidget *self)
|
||
|
|
{
|
||
|
|
GtkWidget *widget = GTK_WIDGET (self);
|
||
|
|
|
||
|
|
gtk_column_view_row_widget_remove_child (GTK_COLUMN_VIEW_ROW_WIDGET (gtk_widget_get_parent (widget)), widget);
|
||
|
|
}
|
||
|
|
|
||
|
|
GtkColumnViewCellWidget *
|
||
|
|
gtk_column_view_cell_widget_get_next (GtkColumnViewCellWidget *self)
|
||
|
|
{
|
||
|
|
return self->next_cell;
|
||
|
|
}
|
||
|
|
|
||
|
|
GtkColumnViewCellWidget *
|
||
|
|
gtk_column_view_cell_widget_get_prev (GtkColumnViewCellWidget *self)
|
||
|
|
{
|
||
|
|
return self->prev_cell;
|
||
|
|
}
|
||
|
|
|
||
|
|
GtkColumnViewColumn *
|
||
|
|
gtk_column_view_cell_widget_get_column (GtkColumnViewCellWidget *self)
|
||
|
|
{
|
||
|
|
return self->column;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
gtk_column_view_cell_widget_set_child (GtkColumnViewCellWidget *self,
|
||
|
|
GtkWidget *child)
|
||
|
|
{
|
||
|
|
GtkWidget *cur_child = gtk_widget_get_first_child (GTK_WIDGET (self));
|
||
|
|
|
||
|
|
if (cur_child == child)
|
||
|
|
return;
|
||
|
|
|
||
|
|
g_clear_pointer (&cur_child, gtk_widget_unparent);
|
||
|
|
|
||
|
|
if (child)
|
||
|
|
gtk_widget_set_parent (child, GTK_WIDGET (self));
|
||
|
|
}
|