mirror of https://github.com/GNOME/gimp.git
680 lines
23 KiB
C
680 lines
23 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpcontainergridview.c
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* Copyright (C) 2001 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "widgets-types.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpcontext.h"
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#include "core/gimpmarshal.h"
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#include "core/gimpviewable.h"
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#include "gimpcontainergridview.h"
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#include "gimpitemfactory.h"
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#include "gimppreview.h"
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#include "gimppreviewrenderer.h"
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#include "gimpwidgets-utils.h"
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#include "gtkhwrapbox.h"
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#include "gimp-intl.h"
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enum
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{
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MOVE_CURSOR,
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LAST_SIGNAL
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};
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static void gimp_container_grid_view_class_init (GimpContainerGridViewClass *klass);
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static void gimp_container_grid_view_init (GimpContainerGridView *view);
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static gboolean gimp_container_grid_view_move_cursor (GimpContainerGridView *view,
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GtkMovementStep step,
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gint count);
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static gboolean gimp_container_grid_view_focus (GtkWidget *widget,
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GtkDirectionType direction);
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static gboolean gimp_container_grid_view_popup_menu (GtkWidget *widget);
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static gpointer gimp_container_grid_view_insert_item (GimpContainerView *view,
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GimpViewable *viewable,
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gint index);
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static void gimp_container_grid_view_remove_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data);
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static void gimp_container_grid_view_reorder_item (GimpContainerView *view,
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GimpViewable *viewable,
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gint new_index,
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gpointer insert_data);
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static void gimp_container_grid_view_rename_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data);
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static gboolean gimp_container_grid_view_select_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data);
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static void gimp_container_grid_view_clear_items (GimpContainerView *view);
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static void gimp_container_grid_view_set_preview_size (GimpContainerView *view);
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static gboolean gimp_container_grid_view_item_selected(GtkWidget *widget,
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GdkEventButton *bevent,
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gpointer data);
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static void gimp_container_grid_view_item_activated (GtkWidget *widget,
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gpointer data);
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static void gimp_container_grid_view_item_context (GtkWidget *widget,
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gpointer data);
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static void gimp_container_grid_view_highlight_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data);
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static void gimp_container_grid_view_viewport_resized (GtkWidget *widget,
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GtkAllocation *allocation,
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GimpContainerGridView *view);
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static GimpContainerViewClass *parent_class = NULL;
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static guint grid_view_signals[LAST_SIGNAL] = { 0 };
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static GimpRGB white_color;
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static GimpRGB black_color;
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GType
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gimp_container_grid_view_get_type (void)
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{
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static GType view_type = 0;
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if (! view_type)
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{
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static const GTypeInfo view_info =
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{
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sizeof (GimpContainerGridViewClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gimp_container_grid_view_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpContainerGridView),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_container_grid_view_init,
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};
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view_type = g_type_register_static (GIMP_TYPE_CONTAINER_VIEW,
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"GimpContainerGridView",
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&view_info, 0);
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}
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return view_type;
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}
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static void
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gimp_container_grid_view_class_init (GimpContainerGridViewClass *klass)
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{
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GimpContainerViewClass *container_view_class;
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GtkWidgetClass *widget_class;
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GtkBindingSet *binding_set;
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container_view_class = GIMP_CONTAINER_VIEW_CLASS (klass);
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widget_class = GTK_WIDGET_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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binding_set = gtk_binding_set_by_class (klass);
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widget_class->focus = gimp_container_grid_view_focus;
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widget_class->popup_menu = gimp_container_grid_view_popup_menu;
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container_view_class->insert_item = gimp_container_grid_view_insert_item;
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container_view_class->remove_item = gimp_container_grid_view_remove_item;
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container_view_class->reorder_item = gimp_container_grid_view_reorder_item;
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container_view_class->rename_item = gimp_container_grid_view_rename_item;
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container_view_class->select_item = gimp_container_grid_view_select_item;
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container_view_class->clear_items = gimp_container_grid_view_clear_items;
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container_view_class->set_preview_size = gimp_container_grid_view_set_preview_size;
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klass->move_cursor = gimp_container_grid_view_move_cursor;
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grid_view_signals[MOVE_CURSOR] =
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g_signal_new ("move_cursor",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GimpContainerGridViewClass, move_cursor),
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NULL, NULL,
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gimp_marshal_BOOLEAN__ENUM_INT,
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G_TYPE_BOOLEAN, 2,
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GTK_TYPE_MOVEMENT_STEP,
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G_TYPE_INT);
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gtk_binding_entry_add_signal (binding_set, GDK_Home, 0,
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"move_cursor", 2,
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G_TYPE_ENUM, GTK_MOVEMENT_BUFFER_ENDS,
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G_TYPE_INT, -1);
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gtk_binding_entry_add_signal (binding_set, GDK_End, 0,
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"move_cursor", 2,
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G_TYPE_ENUM, GTK_MOVEMENT_BUFFER_ENDS,
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G_TYPE_INT, 1);
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gtk_binding_entry_add_signal (binding_set, GDK_Page_Up, 0,
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"move_cursor", 2,
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G_TYPE_ENUM, GTK_MOVEMENT_PAGES,
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G_TYPE_INT, -1);
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gtk_binding_entry_add_signal (binding_set, GDK_Page_Down, 0,
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"move_cursor", 2,
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G_TYPE_ENUM, GTK_MOVEMENT_PAGES,
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G_TYPE_INT, 1);
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gimp_rgba_set (&white_color, 1.0, 1.0, 1.0, 1.0);
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gimp_rgba_set (&black_color, 0.0, 0.0, 0.0, 1.0);
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}
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static void
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gimp_container_grid_view_init (GimpContainerGridView *grid_view)
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{
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GimpContainerView *view = GIMP_CONTAINER_VIEW (grid_view);
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grid_view->rows = 1;
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grid_view->columns = 1;
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grid_view->visible_rows = 0;
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grid_view->selected_item = NULL;
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (view->scrolled_win),
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GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
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grid_view->name_label = gtk_label_new (_("(None)"));
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gtk_misc_set_alignment (GTK_MISC (grid_view->name_label), 0.0, 0.5);
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gtk_box_pack_start (GTK_BOX (grid_view), grid_view->name_label,
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FALSE, FALSE, 0);
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gtk_box_reorder_child (GTK_BOX (grid_view), grid_view->name_label, 0);
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gtk_widget_show (grid_view->name_label);
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grid_view->wrap_box = gtk_hwrap_box_new (FALSE);
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gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (view->scrolled_win),
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grid_view->wrap_box);
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gtk_widget_show (grid_view->wrap_box);
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g_signal_connect (grid_view->wrap_box->parent, "size_allocate",
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G_CALLBACK (gimp_container_grid_view_viewport_resized),
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grid_view);
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GTK_WIDGET_SET_FLAGS (grid_view, GTK_CAN_FOCUS);
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}
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GtkWidget *
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gimp_container_grid_view_new (GimpContainer *container,
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GimpContext *context,
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gint preview_size,
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gint preview_border_width,
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gboolean reorderable)
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{
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GimpContainerGridView *grid_view;
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g_return_val_if_fail (container == NULL || GIMP_IS_CONTAINER (container),
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NULL);
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g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
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g_return_val_if_fail (preview_size > 0 &&
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preview_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE, NULL);
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g_return_val_if_fail (preview_border_width >= 0 &&
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preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH,
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NULL);
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grid_view = g_object_new (GIMP_TYPE_CONTAINER_GRID_VIEW, NULL);
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gimp_container_view_construct (GIMP_CONTAINER_VIEW (grid_view),
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container, context,
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preview_size, preview_border_width,
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reorderable);
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return GTK_WIDGET (grid_view);
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}
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static gboolean
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gimp_container_grid_view_move_by (GimpContainerGridView *view,
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gint x,
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gint y)
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{
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GimpContainer *container;
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GimpViewable *item;
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gint index;
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if (! view->selected_item)
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return FALSE;
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container = GIMP_CONTAINER_VIEW (view)->container;
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item = view->selected_item->viewable;
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index = gimp_container_get_child_index (container, GIMP_OBJECT (item));
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index += x;
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index = CLAMP (index, 0, container->num_children - 1);
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index += y * view->columns;
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while (index < 0)
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index += view->columns;
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while (index >= container->num_children)
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index -= view->columns;
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item = (GimpViewable *) gimp_container_get_child_by_index (container, index);
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if (item)
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gimp_container_view_item_selected (GIMP_CONTAINER_VIEW (view), item);
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return TRUE;
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}
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static gboolean
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gimp_container_grid_view_move_cursor (GimpContainerGridView *view,
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GtkMovementStep step,
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gint count)
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{
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GimpContainer *container;
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GimpViewable *item;
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if (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (view)) || count == 0)
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return FALSE;
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switch (step)
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{
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case GTK_MOVEMENT_PAGES:
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return gimp_container_grid_view_move_by (view,
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0, count * view->visible_rows);
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case GTK_MOVEMENT_BUFFER_ENDS:
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container = GIMP_CONTAINER_VIEW (view)->container;
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count = count < 0 ? 0 : container->num_children - 1;
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item = (GimpViewable *) gimp_container_get_child_by_index (container,
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count);
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if (item)
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gimp_container_view_item_selected (GIMP_CONTAINER_VIEW (view), item);
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return TRUE;
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default:
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break;
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}
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return FALSE;
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}
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static gboolean
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gimp_container_grid_view_focus (GtkWidget *widget,
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GtkDirectionType direction)
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{
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GimpContainerGridView *view = GIMP_CONTAINER_GRID_VIEW (widget);
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if (GTK_WIDGET_CAN_FOCUS (widget) && !GTK_WIDGET_HAS_FOCUS (widget))
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{
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gtk_widget_grab_focus (GTK_WIDGET (widget));
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return TRUE;
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}
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switch (direction)
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{
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case GTK_DIR_UP:
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return gimp_container_grid_view_move_by (view, 0, -1);
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case GTK_DIR_DOWN:
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return gimp_container_grid_view_move_by (view, 0, 1);
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case GTK_DIR_LEFT:
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return gimp_container_grid_view_move_by (view, -1, 0);
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case GTK_DIR_RIGHT:
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return gimp_container_grid_view_move_by (view, 1, 0);
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case GTK_DIR_TAB_FORWARD:
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case GTK_DIR_TAB_BACKWARD:
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break;
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}
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return FALSE;
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}
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static void
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gimp_container_grid_view_menu_position (GtkMenu *menu,
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gint *x,
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gint *y,
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gpointer data)
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{
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GtkWidget *widget = GTK_WIDGET (data);
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gdk_window_get_origin (widget->window, x, y);
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if (GTK_WIDGET_NO_WINDOW (widget))
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{
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*x += widget->allocation.x;
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*y += widget->allocation.y;
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}
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*x += widget->allocation.width / 2;
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*y += widget->allocation.height / 2;
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gimp_menu_position (menu, x, y);
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}
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static gboolean
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gimp_container_grid_view_popup_menu (GtkWidget *widget)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (widget);
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GimpEditor *editor = GIMP_EDITOR (widget);
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if (editor->item_factory && grid_view->selected_item)
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{
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gimp_item_factory_popup_with_data (editor->item_factory,
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editor->item_factory_data,
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GTK_WIDGET (editor),
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gimp_container_grid_view_menu_position,
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grid_view->selected_item,
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NULL);
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return TRUE;
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}
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return FALSE;
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}
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static gpointer
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gimp_container_grid_view_insert_item (GimpContainerView *view,
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GimpViewable *viewable,
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gint index)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
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GtkWidget *preview;
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preview = gimp_preview_new_full (viewable,
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view->preview_size,
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view->preview_size,
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1,
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FALSE, TRUE, TRUE);
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gimp_preview_renderer_set_border_color (GIMP_PREVIEW (preview)->renderer,
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&white_color);
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gimp_preview_renderer_remove_idle (GIMP_PREVIEW (preview)->renderer);
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gtk_wrap_box_pack (GTK_WRAP_BOX (grid_view->wrap_box), preview,
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FALSE, FALSE, FALSE, FALSE);
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if (index != -1)
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gtk_wrap_box_reorder_child (GTK_WRAP_BOX (grid_view->wrap_box),
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preview, index);
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gtk_widget_show (preview);
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g_signal_connect (preview, "button_press_event",
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G_CALLBACK (gimp_container_grid_view_item_selected),
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view);
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g_signal_connect (preview, "double_clicked",
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G_CALLBACK (gimp_container_grid_view_item_activated),
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view);
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g_signal_connect (preview, "context",
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G_CALLBACK (gimp_container_grid_view_item_context),
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view);
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return (gpointer) preview;
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}
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static void
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gimp_container_grid_view_remove_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
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GtkWidget *preview = GTK_WIDGET (insert_data);
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if (preview == (GtkWidget *) grid_view->selected_item)
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grid_view->selected_item = NULL;
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gtk_container_remove (GTK_CONTAINER (grid_view->wrap_box), preview);
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}
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static void
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gimp_container_grid_view_reorder_item (GimpContainerView *view,
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GimpViewable *viewable,
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gint new_index,
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gpointer insert_data)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
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GtkWidget *preview = GTK_WIDGET (insert_data);
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gtk_wrap_box_reorder_child (GTK_WRAP_BOX (grid_view->wrap_box),
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preview, new_index);
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}
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static void
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gimp_container_grid_view_rename_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
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GtkWidget *preview = GTK_WIDGET (insert_data);
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if (preview == (GtkWidget *) grid_view->selected_item)
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{
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gchar *name = gimp_viewable_get_description (viewable, NULL);
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gtk_label_set_text (GTK_LABEL (grid_view->name_label), name);
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g_free (name);
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}
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}
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static gboolean
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gimp_container_grid_view_select_item (GimpContainerView *view,
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GimpViewable *viewable,
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gpointer insert_data)
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{
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gimp_container_grid_view_highlight_item (view, viewable, insert_data);
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return TRUE;
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}
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static void
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gimp_container_grid_view_clear_items (GimpContainerView *view)
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{
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GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
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grid_view->selected_item = NULL;
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while (GTK_WRAP_BOX (grid_view->wrap_box)->children)
|
|
gtk_container_remove (GTK_CONTAINER (grid_view->wrap_box),
|
|
GTK_WRAP_BOX (grid_view->wrap_box)->children->widget);
|
|
|
|
GIMP_CONTAINER_VIEW_CLASS (parent_class)->clear_items (view);
|
|
}
|
|
|
|
static void
|
|
gimp_container_grid_view_set_preview_size (GimpContainerView *view)
|
|
{
|
|
GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
|
|
GtkWrapBoxChild *child;
|
|
|
|
for (child = GTK_WRAP_BOX (grid_view->wrap_box)->children;
|
|
child;
|
|
child = child->next)
|
|
{
|
|
GimpPreview *preview = GIMP_PREVIEW (child->widget);
|
|
|
|
gimp_preview_renderer_set_size (preview->renderer,
|
|
view->preview_size,
|
|
preview->renderer->border_width);
|
|
}
|
|
|
|
gtk_widget_queue_resize (grid_view->wrap_box);
|
|
}
|
|
|
|
static gboolean
|
|
gimp_container_grid_view_item_selected (GtkWidget *widget,
|
|
GdkEventButton *bevent,
|
|
gpointer data)
|
|
{
|
|
if (bevent->type == GDK_BUTTON_PRESS && bevent->button == 1)
|
|
{
|
|
if (GTK_WIDGET_CAN_FOCUS (data) && !GTK_WIDGET_HAS_FOCUS (data))
|
|
gtk_widget_grab_focus (GTK_WIDGET (data));
|
|
|
|
gimp_container_view_item_selected (GIMP_CONTAINER_VIEW (data),
|
|
GIMP_PREVIEW (widget)->viewable);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gimp_container_grid_view_item_activated (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
gimp_container_view_item_activated (GIMP_CONTAINER_VIEW (data),
|
|
GIMP_PREVIEW (widget)->viewable);
|
|
}
|
|
|
|
static void
|
|
gimp_container_grid_view_item_context (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
if (gimp_container_view_item_selected (GIMP_CONTAINER_VIEW (data),
|
|
GIMP_PREVIEW (widget)->viewable))
|
|
{
|
|
gimp_container_view_item_context (GIMP_CONTAINER_VIEW (data),
|
|
GIMP_PREVIEW (widget)->viewable);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_container_grid_view_highlight_item (GimpContainerView *view,
|
|
GimpViewable *viewable,
|
|
gpointer insert_data)
|
|
{
|
|
GimpContainerGridView *grid_view = GIMP_CONTAINER_GRID_VIEW (view);
|
|
GimpPreview *preview = NULL;
|
|
|
|
if (insert_data)
|
|
preview = GIMP_PREVIEW (insert_data);
|
|
|
|
if (grid_view->selected_item && grid_view->selected_item != preview)
|
|
{
|
|
gimp_preview_renderer_set_border_color (grid_view->selected_item->renderer,
|
|
&white_color);
|
|
gimp_preview_renderer_update (grid_view->selected_item->renderer);
|
|
}
|
|
|
|
if (preview)
|
|
{
|
|
GtkRequisition preview_requisition;
|
|
GtkAdjustment *adj;
|
|
gint item_height;
|
|
gint index;
|
|
gint row;
|
|
gchar *name;
|
|
|
|
adj = gtk_scrolled_window_get_vadjustment
|
|
(GTK_SCROLLED_WINDOW (view->scrolled_win));
|
|
|
|
gtk_widget_size_request (GTK_WIDGET (preview), &preview_requisition);
|
|
|
|
item_height = preview_requisition.height;
|
|
|
|
index = gimp_container_get_child_index (view->container,
|
|
GIMP_OBJECT (viewable));
|
|
|
|
row = index / grid_view->columns;
|
|
|
|
if (row * item_height < adj->value)
|
|
{
|
|
gtk_adjustment_set_value (adj, row * item_height);
|
|
}
|
|
else if ((row + 1) * item_height > adj->value + adj->page_size)
|
|
{
|
|
gtk_adjustment_set_value (adj,
|
|
(row + 1) * item_height - adj->page_size);
|
|
}
|
|
|
|
gimp_preview_renderer_set_border_color (preview->renderer, &black_color);
|
|
gimp_preview_renderer_update (preview->renderer);
|
|
|
|
name = gimp_viewable_get_description (preview->renderer->viewable, NULL);
|
|
gtk_label_set_text (GTK_LABEL (grid_view->name_label), name);
|
|
g_free (name);
|
|
}
|
|
else
|
|
{
|
|
gtk_label_set_text (GTK_LABEL (grid_view->name_label), _("(None)"));
|
|
}
|
|
|
|
grid_view->selected_item = preview;
|
|
}
|
|
|
|
static void
|
|
gimp_container_grid_view_viewport_resized (GtkWidget *widget,
|
|
GtkAllocation *allocation,
|
|
GimpContainerGridView *grid_view)
|
|
{
|
|
GimpContainerView *view = GIMP_CONTAINER_VIEW (grid_view);
|
|
|
|
if (view->container)
|
|
{
|
|
GList *children;
|
|
gint n_children;
|
|
|
|
children = gtk_container_get_children (GTK_CONTAINER (grid_view->wrap_box));
|
|
n_children = g_list_length (children);
|
|
|
|
if (children)
|
|
{
|
|
GtkRequisition preview_requisition;
|
|
gint columns;
|
|
gint rows;
|
|
|
|
gtk_widget_size_request (GTK_WIDGET (children->data),
|
|
&preview_requisition);
|
|
|
|
g_list_free (children);
|
|
|
|
columns = MAX (1, allocation->width / preview_requisition.width);
|
|
|
|
rows = n_children / columns;
|
|
|
|
if (n_children % columns)
|
|
rows++;
|
|
|
|
if ((rows != grid_view->rows) || (columns != grid_view->columns))
|
|
{
|
|
grid_view->rows = rows;
|
|
grid_view->columns = columns;
|
|
|
|
gtk_widget_set_size_request (grid_view->wrap_box,
|
|
columns * preview_requisition.width,
|
|
rows * preview_requisition.height);
|
|
|
|
}
|
|
|
|
grid_view->visible_rows = (allocation->height /
|
|
preview_requisition.height);
|
|
}
|
|
|
|
if (grid_view->selected_item)
|
|
{
|
|
GimpPreview *preview = grid_view->selected_item;
|
|
|
|
gimp_container_grid_view_highlight_item (view,
|
|
preview->viewable,
|
|
preview);
|
|
}
|
|
}
|
|
}
|