mirror of https://github.com/GNOME/gimp.git
745 lines
24 KiB
C
745 lines
24 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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* gimpnavigationview.c
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* Copyright (C) 2001 Michael Natterer <mitch@gimp.org>
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*
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* partly based on app/nav_window
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* Copyright (C) 1999 Andy Thomas <alt@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 "libgimpwidgets/gimpwidgets.h"
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#include "display-types.h"
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#include "core/gimp.h"
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#include "core/gimpcontext.h"
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#include "core/gimpimage.h"
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#include "widgets/gimpnavigationpreview.h"
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#include "gimpdisplay.h"
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#include "gimpdisplayshell.h"
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#include "gimpdisplayshell-scale.h"
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#include "gimpdisplayshell-scroll.h"
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#include "gimpnavigationview.h"
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#include "gimprc.h"
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#include "libgimp/gimpintl.h"
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#define MAX_SCALE_BUF 20
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static void gimp_navigation_view_class_init (GimpNavigationViewClass *klass);
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static void gimp_navigation_view_init (GimpNavigationView *view);
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static void gimp_navigation_view_destroy (GtkObject *object);
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static GtkWidget * gimp_navigation_view_new_private (GimpDisplayShell *shell,
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gboolean popup);
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static gboolean gimp_navigation_view_button_release (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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static void gimp_navigation_view_abox_resized (GtkWidget *widget,
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GtkAllocation *allocation,
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GimpNavigationView *view);
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static void gimp_navigation_view_marker_changed (GimpNavigationPreview *preview,
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gint x,
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gint y,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom (GimpNavigationPreview *preview,
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GimpZoomType direction,
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GimpNavigationView *view);
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static void gimp_navigation_view_scroll (GimpNavigationPreview *preview,
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GdkScrollDirection direction,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom_adj_changed (GtkAdjustment *adj,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom_out_clicked (GtkWidget *widget,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom_in_clicked (GtkWidget *widget,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom_100_clicked (GtkWidget *widget,
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GimpNavigationView *view);
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static void gimp_navigation_view_zoom_fit_clicked (GtkWidget *widget,
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GimpNavigationView *view);
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static void gimp_navigation_view_shrink_clicked (GtkWidget *widget,
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GimpNavigationView *view);
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static void gimp_navigation_view_shell_scaled (GimpDisplayShell *shell,
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GimpNavigationView *view);
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static void gimp_navigation_view_shell_scrolled (GimpDisplayShell *shell,
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GimpNavigationView *view);
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static void gimp_navigation_view_shell_reconnect (GimpDisplayShell *shell,
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GimpNavigationView *view);
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static void gimp_navigation_view_update_marker (GimpNavigationView *view);
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static GimpEditorClass *parent_class = NULL;
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GType
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gimp_navigation_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 (GimpNavigationViewClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gimp_navigation_view_class_init,
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NULL, /* class_finalize */
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NULL, /* class_navigation */
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sizeof (GimpNavigationView),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_navigation_view_init,
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};
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view_type = g_type_register_static (GIMP_TYPE_EDITOR,
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"GimpNavigationView",
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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_navigation_view_class_init (GimpNavigationViewClass *klass)
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{
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GObjectClass *object_class;
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GtkObjectClass *gtk_object_class;
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object_class = G_OBJECT_CLASS (klass);
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gtk_object_class = GTK_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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gtk_object_class->destroy = gimp_navigation_view_destroy;
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}
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static void
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gimp_navigation_view_init (GimpNavigationView *view)
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{
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GtkWidget *abox;
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GtkWidget *frame;
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view->shell = NULL;
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/* the preview */
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (view), frame, TRUE, TRUE, 0);
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gtk_widget_show (frame);
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abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
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gtk_container_add (GTK_CONTAINER (frame), abox);
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gtk_widget_show (abox);
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gtk_widget_set_size_request (abox,
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gimprc.nav_preview_size,
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gimprc.nav_preview_size);
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g_signal_connect (G_OBJECT (abox), "size_allocate",
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G_CALLBACK (gimp_navigation_view_abox_resized),
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view);
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view->preview = gimp_navigation_preview_new (NULL, gimprc.nav_preview_size);
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gtk_container_add (GTK_CONTAINER (abox), view->preview);
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gtk_widget_show (view->preview);
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g_signal_connect (G_OBJECT (view->preview), "marker_changed",
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G_CALLBACK (gimp_navigation_view_marker_changed),
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view);
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g_signal_connect (G_OBJECT (view->preview), "zoom",
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G_CALLBACK (gimp_navigation_view_zoom),
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view);
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g_signal_connect (G_OBJECT (view->preview), "scroll",
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G_CALLBACK (gimp_navigation_view_scroll),
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view);
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gtk_widget_set_sensitive (GTK_WIDGET (view), FALSE);
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}
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static void
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gimp_navigation_view_destroy (GtkObject *object)
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{
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GimpNavigationView *view;
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view = GIMP_NAVIGATION_VIEW (object);
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if (view->shell)
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gimp_navigation_view_set_shell (view, NULL);
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
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}
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/* public functions */
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GtkWidget *
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gimp_navigation_view_new (GimpDisplayShell *shell)
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{
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return gimp_navigation_view_new_private (shell, FALSE);
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}
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void
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gimp_navigation_view_set_shell (GimpNavigationView *view,
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GimpDisplayShell *shell)
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{
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g_return_if_fail (GIMP_IS_NAVIGATION_VIEW (view));
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g_return_if_fail (! shell || GIMP_IS_DISPLAY_SHELL (shell));
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if (shell == view->shell)
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return;
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if (view->shell)
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{
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g_signal_handlers_disconnect_by_func (G_OBJECT (view->shell),
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gimp_navigation_view_shell_scaled,
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view);
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g_signal_handlers_disconnect_by_func (G_OBJECT (view->shell),
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gimp_navigation_view_shell_scrolled,
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view);
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g_signal_handlers_disconnect_by_func (G_OBJECT (view->shell),
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gimp_navigation_view_shell_reconnect,
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view);
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}
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else if (shell)
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{
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gtk_widget_set_sensitive (GTK_WIDGET (view), TRUE);
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}
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view->shell = shell;
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if (view->shell)
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{
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gimp_preview_set_viewable (GIMP_PREVIEW (view->preview),
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GIMP_VIEWABLE (shell->gdisp->gimage));
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g_signal_connect (G_OBJECT (view->shell), "scaled",
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G_CALLBACK (gimp_navigation_view_shell_scaled),
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view);
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g_signal_connect (G_OBJECT (view->shell), "scrolled",
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G_CALLBACK (gimp_navigation_view_shell_scrolled),
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view);
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g_signal_connect (G_OBJECT (view->shell), "reconnect",
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G_CALLBACK (gimp_navigation_view_shell_reconnect),
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view);
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gimp_navigation_view_shell_scaled (view->shell, view);
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}
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else
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{
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gimp_preview_set_viewable (GIMP_PREVIEW (view->preview), NULL);
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gtk_widget_set_sensitive (GTK_WIDGET (view), FALSE);
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}
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}
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void
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gimp_navigation_view_popup (GimpDisplayShell *shell,
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GtkWidget *widget,
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gint click_x,
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gint click_y)
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{
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GimpNavigationView *view;
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GimpNavigationPreview *preview;
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gint x, y;
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gint x_org, y_org;
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g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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if (! shell->nav_popup)
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{
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GtkWidget *frame;
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shell->nav_popup = gtk_window_new (GTK_WINDOW_POPUP);
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
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gtk_container_add (GTK_CONTAINER (shell->nav_popup), frame);
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gtk_widget_show (frame);
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view = GIMP_NAVIGATION_VIEW (gimp_navigation_view_new_private (shell, TRUE));
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gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET (view));
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gtk_widget_show (GTK_WIDGET (view));
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g_signal_connect (G_OBJECT (view->preview), "button_release_event",
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G_CALLBACK (gimp_navigation_view_button_release),
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shell);
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}
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else
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{
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view = GIMP_NAVIGATION_VIEW (GTK_BIN (GTK_BIN (shell->nav_popup)->child)->child);;
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}
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preview = GIMP_NAVIGATION_PREVIEW (view->preview);
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/* decide where to put the popup */
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gdk_window_get_origin (widget->window, &x_org, &y_org);
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#define BORDER_PEN_WIDTH 3
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x = (x_org + click_x -
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preview->p_x -
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0.5 * (preview->p_width - BORDER_PEN_WIDTH) -
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2 * widget->style->xthickness);
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y = (y_org + click_y -
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preview->p_y -
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0.5 * (preview->p_height - BORDER_PEN_WIDTH) -
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2 * widget->style->ythickness);
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/* If the popup doesn't fit into the screen, we have a problem.
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* We move the popup onscreen and risk that the pointer is not
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* in the square representing the viewable area anymore. Moving
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* the pointer will make the image scroll by a large amount,
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* but then it works as usual. Probably better than a popup that
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* is completely unusable in the lower right of the screen.
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*
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* Warping the pointer would be another solution ...
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*/
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x = CLAMP (x, 0, (gdk_screen_width () -
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GIMP_PREVIEW (preview)->width -
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4 * widget->style->xthickness));
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y = CLAMP (y, 0, (gdk_screen_height () -
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GIMP_PREVIEW (preview)->height -
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4 * widget->style->ythickness));
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gtk_window_move (GTK_WINDOW (shell->nav_popup), x, y);
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gtk_widget_show (shell->nav_popup);
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gdk_flush ();
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/* fill in then grab pointer */
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preview->motion_offset_x = 0.5 * (preview->p_width - BORDER_PEN_WIDTH);
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preview->motion_offset_y = 0.5 * (preview->p_height - BORDER_PEN_WIDTH);
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#undef BORDER_PEN_WIDTH
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gimp_navigation_preview_grab_pointer (preview);
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}
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/* private functions */
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static GtkWidget *
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gimp_navigation_view_new_private (GimpDisplayShell *shell,
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gboolean popup)
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{
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GimpNavigationView *view;
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g_return_val_if_fail (! shell || GIMP_IS_DISPLAY_SHELL (shell), NULL);
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view = g_object_new (GIMP_TYPE_NAVIGATION_VIEW, NULL);
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if (! popup)
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{
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GtkWidget *hscale;
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/* the editor buttons */
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view->zoom_out_button =
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gimp_editor_add_button (GIMP_EDITOR (view),
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GTK_STOCK_ZOOM_OUT,
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_("Zoom out"), NULL,
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G_CALLBACK (gimp_navigation_view_zoom_out_clicked),
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NULL,
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view);
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view->zoom_in_button =
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gimp_editor_add_button (GIMP_EDITOR (view),
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GTK_STOCK_ZOOM_IN,
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_("Zoom in"), NULL,
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G_CALLBACK (gimp_navigation_view_zoom_in_clicked),
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NULL,
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view);
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view->zoom_100_button =
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gimp_editor_add_button (GIMP_EDITOR (view),
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GTK_STOCK_ZOOM_100,
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_("Zoom 1:1"), NULL,
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G_CALLBACK (gimp_navigation_view_zoom_100_clicked),
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NULL,
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view);
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view->zoom_fit_button =
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gimp_editor_add_button (GIMP_EDITOR (view),
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GTK_STOCK_ZOOM_FIT,
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_("Zoom to fit window"), NULL,
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G_CALLBACK (gimp_navigation_view_zoom_fit_clicked),
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NULL,
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view);
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view->shrink_wrap_button =
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gimp_editor_add_button (GIMP_EDITOR (view),
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GTK_STOCK_ZOOM_FIT,
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_("Shrink Wrap"), NULL,
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G_CALLBACK (gimp_navigation_view_shrink_clicked),
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NULL,
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view);
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/* the zoom scale */
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view->zoom_adjustment =
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GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -15.0, 15.0, 1.0, 1.0, 0.0));
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g_signal_connect (G_OBJECT (view->zoom_adjustment), "value_changed",
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G_CALLBACK (gimp_navigation_view_zoom_adj_changed),
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view);
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hscale = gtk_hscale_new (GTK_ADJUSTMENT (view->zoom_adjustment));
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gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_DELAYED);
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gtk_scale_set_draw_value (GTK_SCALE (hscale), FALSE);
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gtk_scale_set_digits (GTK_SCALE (hscale), 0);
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gtk_box_pack_end (GTK_BOX (view), hscale, FALSE, FALSE, 0);
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gtk_widget_show (hscale);
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/* the zoom label */
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view->zoom_label = gtk_label_new ("1:1");
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gtk_box_pack_end (GTK_BOX (view), view->zoom_label, FALSE, FALSE, 0);
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gtk_widget_show (view->zoom_label);
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/* eek */
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{
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GtkRequisition requisition;
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gtk_widget_size_request (view->zoom_label, &requisition);
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gtk_widget_set_size_request (view->zoom_label,
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4 * requisition.width, requisition.height);
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}
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}
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if (shell)
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gimp_navigation_view_set_shell (view, shell);
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return GTK_WIDGET (view);
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}
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static gboolean
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gimp_navigation_view_button_release (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell)
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{
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if (bevent->button == 1)
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{
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gtk_widget_hide (shell->nav_popup);
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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_navigation_view_abox_resized (GtkWidget *widget,
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GtkAllocation *allocation,
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GimpNavigationView *view)
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{
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GimpPreview *preview;
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preview = GIMP_PREVIEW (view->preview);
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if (! preview->viewable)
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return;
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if (preview->width > allocation->width ||
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preview->height > allocation->height ||
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(preview->width != allocation->width &&
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preview->height != allocation->height))
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{
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GimpNavigationPreview *nav_preview;
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GimpImage *gimage;
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gint width;
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gint height;
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gboolean dummy;
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gimage = GIMP_IMAGE (preview->viewable);
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gimp_preview_calc_size (preview,
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gimage->width,
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gimage->height,
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MIN (allocation->width, GIMP_PREVIEW_MAX_SIZE),
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MIN (allocation->height, GIMP_PREVIEW_MAX_SIZE),
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gimage->xresolution,
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gimage->yresolution,
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&width,
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&height,
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&dummy);
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if (width > allocation->width)
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{
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height = height * allocation->width / width;
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width = width * allocation->width / width;
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}
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else if (height > allocation->height)
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{
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width = width * allocation->height / height;
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height = height * allocation->height / height;
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}
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gimp_preview_set_size_full (preview, width, height, preview->border_width);
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/* FIXME: the GimpNavigationPreview should handle this stuff itself */
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nav_preview = GIMP_NAVIGATION_PREVIEW (preview);
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gimp_navigation_preview_set_marker (nav_preview,
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nav_preview->x,
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nav_preview->y,
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nav_preview->width,
|
|
nav_preview->height);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_marker_changed (GimpNavigationPreview *preview,
|
|
gint x,
|
|
gint y,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
{
|
|
gdouble xratio;
|
|
gdouble yratio;
|
|
gint xoffset;
|
|
gint yoffset;
|
|
|
|
xratio = SCALEFACTOR_X (view->shell);
|
|
yratio = SCALEFACTOR_Y (view->shell);
|
|
|
|
xoffset = x * xratio - view->shell->offset_x;
|
|
yoffset = y * yratio - view->shell->offset_y;
|
|
|
|
gimp_display_shell_scroll (view->shell, xoffset, yoffset);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom (GimpNavigationPreview *preview,
|
|
GimpZoomType direction,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
{
|
|
gimp_display_shell_scale (view->shell, direction);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_scroll (GimpNavigationPreview *preview,
|
|
GdkScrollDirection direction,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
{
|
|
GtkAdjustment *adj = NULL;
|
|
gdouble value;
|
|
|
|
switch (direction)
|
|
{
|
|
case GDK_SCROLL_LEFT:
|
|
case GDK_SCROLL_RIGHT:
|
|
adj = view->shell->hsbdata;
|
|
break;
|
|
|
|
case GDK_SCROLL_UP:
|
|
case GDK_SCROLL_DOWN:
|
|
adj = view->shell->vsbdata;
|
|
break;
|
|
}
|
|
|
|
g_assert (adj != NULL);
|
|
|
|
value = adj->value;
|
|
|
|
switch (direction)
|
|
{
|
|
case GDK_SCROLL_LEFT:
|
|
case GDK_SCROLL_UP:
|
|
value -= adj->page_increment / 2;
|
|
break;
|
|
|
|
case GDK_SCROLL_RIGHT:
|
|
case GDK_SCROLL_DOWN:
|
|
value += adj->page_increment / 2;
|
|
break;
|
|
}
|
|
|
|
value = CLAMP (value, adj->lower, adj->upper - adj->page_size);
|
|
|
|
gtk_adjustment_set_value (adj, value);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom_adj_changed (GtkAdjustment *adj,
|
|
GimpNavigationView *view)
|
|
{
|
|
gint value;
|
|
gint scalesrc;
|
|
gint scaledest;
|
|
|
|
value = RINT (adj->value);
|
|
|
|
if (value < 0)
|
|
{
|
|
scalesrc = - value + 1;
|
|
scaledest = 1;
|
|
}
|
|
else
|
|
{
|
|
scalesrc = 1;
|
|
scaledest = value + 1;
|
|
}
|
|
|
|
g_print ("zoom_adj_changed: %d : %d (%f)\n", scaledest, scalesrc,
|
|
adj->value);
|
|
|
|
gimp_display_shell_scale (view->shell, (scaledest * 100) + scalesrc);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom_out_clicked (GtkWidget *widget,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
gimp_display_shell_scale (view->shell, GIMP_ZOOM_OUT);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom_in_clicked (GtkWidget *widget,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
gimp_display_shell_scale (view->shell, GIMP_ZOOM_IN);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom_100_clicked (GtkWidget *widget,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
gimp_display_shell_scale (view->shell, 101);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_zoom_fit_clicked (GtkWidget *widget,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
gimp_display_shell_scale_fit (view->shell);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_shrink_clicked (GtkWidget *widget,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->shell)
|
|
gimp_display_shell_scale_shrink_wrap (view->shell);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_shell_scaled (GimpDisplayShell *shell,
|
|
GimpNavigationView *view)
|
|
{
|
|
if (view->zoom_label)
|
|
{
|
|
gchar scale_str[MAX_SCALE_BUF];
|
|
|
|
/* Update the zoom scale string */
|
|
g_snprintf (scale_str, sizeof (scale_str), "%d:%d",
|
|
SCALEDEST (view->shell),
|
|
SCALESRC (view->shell));
|
|
|
|
gtk_label_set_text (GTK_LABEL (view->zoom_label), scale_str);
|
|
}
|
|
|
|
if (view->zoom_adjustment)
|
|
{
|
|
gdouble f;
|
|
gint val;
|
|
|
|
f = (((gdouble) SCALEDEST (view->shell)) /
|
|
((gdouble) SCALESRC (view->shell)));
|
|
|
|
if (f < 1.0)
|
|
val = - RINT (1.0 / f) + 1;
|
|
else
|
|
val = RINT (f) - 1;
|
|
|
|
g_signal_handlers_block_by_func (G_OBJECT (view->zoom_adjustment),
|
|
gimp_navigation_view_zoom_adj_changed,
|
|
view);
|
|
|
|
gtk_adjustment_set_value (view->zoom_adjustment, val);
|
|
|
|
g_signal_handlers_unblock_by_func (G_OBJECT (view->zoom_adjustment),
|
|
gimp_navigation_view_zoom_adj_changed,
|
|
view);
|
|
}
|
|
|
|
gimp_navigation_view_update_marker (view);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_shell_scrolled (GimpDisplayShell *shell,
|
|
GimpNavigationView *view)
|
|
{
|
|
gimp_navigation_view_update_marker (view);
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_shell_reconnect (GimpDisplayShell *shell,
|
|
GimpNavigationView *view)
|
|
{
|
|
gimp_preview_set_viewable (GIMP_PREVIEW (view->preview),
|
|
GIMP_VIEWABLE (shell->gdisp->gimage));
|
|
}
|
|
|
|
static void
|
|
gimp_navigation_view_update_marker (GimpNavigationView *view)
|
|
{
|
|
gdouble xratio;
|
|
gdouble yratio;
|
|
|
|
xratio = SCALEFACTOR_X (view->shell);
|
|
yratio = SCALEFACTOR_Y (view->shell);
|
|
|
|
if (GIMP_PREVIEW (view->preview)->dot_for_dot != view->shell->dot_for_dot)
|
|
gimp_preview_set_dot_for_dot (GIMP_PREVIEW (view->preview),
|
|
view->shell->dot_for_dot);
|
|
|
|
gimp_navigation_preview_set_marker (GIMP_NAVIGATION_PREVIEW (view->preview),
|
|
RINT (view->shell->offset_x / xratio),
|
|
RINT (view->shell->offset_y / yratio),
|
|
RINT (view->shell->disp_width / xratio),
|
|
RINT (view->shell->disp_height / yratio));
|
|
}
|