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-rw-r--r--app/display/gimpnavigationeditor.c890
1 files changed, 890 insertions, 0 deletions
diff --git a/app/display/gimpnavigationeditor.c b/app/display/gimpnavigationeditor.c
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+++ b/app/display/gimpnavigationeditor.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpnavigationeditor.c
+ * Copyright (C) 2001 Michael Natterer <mitch@gimp.org>
+ *
+ * partly based on app/nav_window
+ * Copyright (C) 1999 Andy Thomas <alt@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "display-types.h"
+
+#include "config/gimpdisplayconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimpimageproxy.h"
+
+#include "widgets/gimpdocked.h"
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpmenufactory.h"
+#include "widgets/gimpnavigationview.h"
+#include "widgets/gimpuimanager.h"
+#include "widgets/gimpviewrenderer.h"
+
+#include "gimpdisplay.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-appearance.h"
+#include "gimpdisplayshell-scale.h"
+#include "gimpdisplayshell-scroll.h"
+#include "gimpdisplayshell-transform.h"
+#include "gimpnavigationeditor.h"
+
+#include "gimp-intl.h"
+
+
+#define UPDATE_DELAY 300 /* From GtkRange in GTK+ 2.22 */
+
+
+static void gimp_navigation_editor_docked_iface_init (GimpDockedInterface *iface);
+
+static void gimp_navigation_editor_dispose (GObject *object);
+
+static void gimp_navigation_editor_set_context (GimpDocked *docked,
+ GimpContext *context);
+
+static GtkWidget * gimp_navigation_editor_new_private (GimpMenuFactory *menu_factory,
+ GimpDisplayShell *shell);
+
+static void gimp_navigation_editor_set_shell (GimpNavigationEditor *editor,
+ GimpDisplayShell *shell);
+static gboolean gimp_navigation_editor_button_release (GtkWidget *widget,
+ GdkEventButton *bevent,
+ GimpDisplayShell *shell);
+static void gimp_navigation_editor_marker_changed (GimpNavigationView *view,
+ gdouble center_x,
+ gdouble center_y,
+ gdouble width,
+ gdouble height,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_zoom (GimpNavigationView *view,
+ GimpZoomType direction,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_scroll (GimpNavigationView *view,
+ GdkScrollDirection direction,
+ GimpNavigationEditor *editor);
+
+static void gimp_navigation_editor_zoom_adj_changed (GtkAdjustment *adj,
+ GimpNavigationEditor *editor);
+
+static void gimp_navigation_editor_shell_infinite_canvas_notify (GimpDisplayShell *shell,
+ const GParamSpec *pspec,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_shell_scaled (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_shell_scrolled (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_shell_rotated (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor);
+static void gimp_navigation_editor_shell_reconnect (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor);
+
+static void gimp_navigation_editor_viewable_size_changed (GimpViewable *viewable,
+ GimpNavigationEditor *editor);
+
+static void gimp_navigation_editor_options_show_canvas_notify (GimpDisplayOptions *options,
+ const GParamSpec *pspec,
+ GimpNavigationEditor *editor);
+
+static void gimp_navigation_editor_update_marker (GimpNavigationEditor *editor);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpNavigationEditor, gimp_navigation_editor,
+ GIMP_TYPE_EDITOR,
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_DOCKED,
+ gimp_navigation_editor_docked_iface_init))
+
+#define parent_class gimp_navigation_editor_parent_class
+
+
+static void
+gimp_navigation_editor_class_init (GimpNavigationEditorClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = gimp_navigation_editor_dispose;
+}
+
+static void
+gimp_navigation_editor_docked_iface_init (GimpDockedInterface *iface)
+{
+ iface->set_context = gimp_navigation_editor_set_context;
+}
+
+static void
+gimp_navigation_editor_init (GimpNavigationEditor *editor)
+{
+ GtkWidget *frame;
+
+ editor->context = NULL;
+ editor->shell = NULL;
+ editor->scale_timeout = 0;
+
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+ gtk_box_pack_start (GTK_BOX (editor), frame, TRUE, TRUE, 0);
+ gtk_widget_show (frame);
+
+ editor->view = gimp_view_new_by_types (NULL,
+ GIMP_TYPE_NAVIGATION_VIEW,
+ GIMP_TYPE_IMAGE_PROXY,
+ GIMP_VIEW_SIZE_MEDIUM, 0, TRUE);
+ gtk_container_add (GTK_CONTAINER (frame), editor->view);
+ gtk_widget_show (editor->view);
+
+ g_signal_connect (editor->view, "marker-changed",
+ G_CALLBACK (gimp_navigation_editor_marker_changed),
+ editor);
+ g_signal_connect (editor->view, "zoom",
+ G_CALLBACK (gimp_navigation_editor_zoom),
+ editor);
+ g_signal_connect (editor->view, "scroll",
+ G_CALLBACK (gimp_navigation_editor_scroll),
+ editor);
+
+ gtk_widget_set_sensitive (GTK_WIDGET (editor), FALSE);
+}
+
+static void
+gimp_navigation_editor_dispose (GObject *object)
+{
+ GimpNavigationEditor *editor = GIMP_NAVIGATION_EDITOR (object);
+
+ if (editor->shell)
+ gimp_navigation_editor_set_shell (editor, NULL);
+
+ if (editor->scale_timeout)
+ {
+ g_source_remove (editor->scale_timeout);
+ editor->scale_timeout = 0;
+ }
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gimp_navigation_editor_display_changed (GimpContext *context,
+ GimpDisplay *display,
+ GimpNavigationEditor *editor)
+{
+ GimpDisplayShell *shell = NULL;
+
+ if (display && gimp_display_get_image (display))
+ shell = gimp_display_get_shell (display);
+
+ gimp_navigation_editor_set_shell (editor, shell);
+}
+
+static void
+gimp_navigation_editor_image_chaged (GimpContext *context,
+ GimpImage *image,
+ GimpNavigationEditor *editor)
+{
+ GimpDisplay *display = gimp_context_get_display (context);
+ GimpDisplayShell *shell = NULL;
+
+ if (display && image)
+ shell = gimp_display_get_shell (display);
+
+ gimp_navigation_editor_set_shell (editor, shell);
+}
+
+static void
+gimp_navigation_editor_set_context (GimpDocked *docked,
+ GimpContext *context)
+{
+ GimpNavigationEditor *editor = GIMP_NAVIGATION_EDITOR (docked);
+ GimpDisplay *display = NULL;
+
+ if (editor->context)
+ {
+ g_signal_handlers_disconnect_by_func (editor->context,
+ gimp_navigation_editor_display_changed,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->context,
+ gimp_navigation_editor_image_chaged,
+ editor);
+ }
+
+ editor->context = context;
+
+ if (editor->context)
+ {
+ g_signal_connect (context, "display-changed",
+ G_CALLBACK (gimp_navigation_editor_display_changed),
+ editor);
+ /* make sure to also call gimp_navigation_editor_set_shell() when the
+ * last image is closed, even though the display isn't changed, so that
+ * the editor is properly cleared.
+ */
+ g_signal_connect (context, "image-changed",
+ G_CALLBACK (gimp_navigation_editor_image_chaged),
+ editor);
+
+ display = gimp_context_get_display (context);
+ }
+
+ gimp_view_renderer_set_context (GIMP_VIEW (editor->view)->renderer,
+ context);
+
+ gimp_navigation_editor_display_changed (editor->context,
+ display,
+ editor);
+}
+
+
+/* public functions */
+
+GtkWidget *
+gimp_navigation_editor_new (GimpMenuFactory *menu_factory)
+{
+ return gimp_navigation_editor_new_private (menu_factory, NULL);
+}
+
+void
+gimp_navigation_editor_popup (GimpDisplayShell *shell,
+ GtkWidget *widget,
+ gint click_x,
+ gint click_y)
+{
+ GtkStyle *style = gtk_widget_get_style (widget);
+ GimpNavigationEditor *editor;
+ GimpNavigationView *view;
+ GdkScreen *screen;
+ gint x, y;
+ gint view_marker_center_x, view_marker_center_y;
+ gint view_marker_width, view_marker_height;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GTK_IS_WIDGET (widget));
+
+ if (! shell->nav_popup)
+ {
+ GtkWidget *frame;
+
+ shell->nav_popup = gtk_window_new (GTK_WINDOW_POPUP);
+
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
+ gtk_container_add (GTK_CONTAINER (shell->nav_popup), frame);
+ gtk_widget_show (frame);
+
+ editor =
+ GIMP_NAVIGATION_EDITOR (gimp_navigation_editor_new_private (NULL,
+ shell));
+ gtk_container_add (GTK_CONTAINER (frame), GTK_WIDGET (editor));
+ gtk_widget_show (GTK_WIDGET (editor));
+
+ g_signal_connect (editor->view, "button-release-event",
+ G_CALLBACK (gimp_navigation_editor_button_release),
+ shell);
+ }
+ else
+ {
+ GtkWidget *bin = gtk_bin_get_child (GTK_BIN (shell->nav_popup));
+
+ editor = GIMP_NAVIGATION_EDITOR (gtk_bin_get_child (GTK_BIN (bin)));
+ }
+
+ view = GIMP_NAVIGATION_VIEW (editor->view);
+
+ /* Set poup screen */
+ screen = gtk_widget_get_screen (widget);
+ gtk_window_set_screen (GTK_WINDOW (shell->nav_popup), screen);
+
+ gimp_navigation_view_get_local_marker (view,
+ &view_marker_center_x,
+ &view_marker_center_y,
+ &view_marker_width,
+ &view_marker_height);
+ /* Position the popup */
+ {
+ gint x_origin, y_origin;
+ gint popup_width, popup_height;
+ gint border_width, border_height;
+ gint screen_click_x, screen_click_y;
+
+ gdk_window_get_origin (gtk_widget_get_window (widget),
+ &x_origin, &y_origin);
+
+ screen_click_x = x_origin + click_x;
+ screen_click_y = y_origin + click_y;
+ border_width = 2 * style->xthickness;
+ border_height = 2 * style->ythickness;
+ popup_width = GIMP_VIEW (view)->renderer->width - 2 * border_width;
+ popup_height = GIMP_VIEW (view)->renderer->height - 2 * border_height;
+
+ x = screen_click_x -
+ border_width -
+ view_marker_center_x;
+
+ y = screen_click_y -
+ border_height -
+ view_marker_center_y;
+
+ /* When the image is zoomed out and overscrolled, the above
+ * calculation risks positioning the popup far far away from the
+ * click coordinate. We don't want that, so perform some clamping.
+ */
+ x = CLAMP (x, screen_click_x - popup_width, screen_click_x);
+ y = CLAMP (y, screen_click_y - popup_height, screen_click_y);
+
+ /* If the popup doesn't fit into the screen, we have a problem.
+ * We move the popup onscreen and risk that the pointer is not
+ * in the square representing the viewable area anymore. Moving
+ * the pointer will make the image scroll by a large amount,
+ * but then it works as usual. Probably better than a popup that
+ * is completely unusable in the lower right of the screen.
+ *
+ * Warping the pointer would be another solution ...
+ */
+ x = CLAMP (x, 0, gdk_screen_get_width (screen) - popup_width);
+ y = CLAMP (y, 0, gdk_screen_get_height (screen) - popup_height);
+
+ gtk_window_move (GTK_WINDOW (shell->nav_popup), x, y);
+ }
+
+ gtk_widget_show (shell->nav_popup);
+ gdk_flush ();
+
+ /* fill in then grab pointer */
+ gimp_navigation_view_set_motion_offset (view, 0, 0);
+ gimp_navigation_view_grab_pointer (view);
+}
+
+
+/* private functions */
+
+static GtkWidget *
+gimp_navigation_editor_new_private (GimpMenuFactory *menu_factory,
+ GimpDisplayShell *shell)
+{
+ GimpNavigationEditor *editor;
+
+ g_return_val_if_fail (menu_factory == NULL ||
+ GIMP_IS_MENU_FACTORY (menu_factory), NULL);
+ g_return_val_if_fail (shell == NULL || GIMP_IS_DISPLAY_SHELL (shell), NULL);
+ g_return_val_if_fail (menu_factory || shell, NULL);
+
+ if (shell)
+ {
+ Gimp *gimp = shell->display->gimp;
+ GimpDisplayConfig *config = shell->display->config;
+ GimpView *view;
+
+ editor = g_object_new (GIMP_TYPE_NAVIGATION_EDITOR, NULL);
+
+ view = GIMP_VIEW (editor->view);
+
+ gimp_view_renderer_set_size (view->renderer,
+ config->nav_preview_size * 3,
+ view->renderer->border_width);
+ gimp_view_renderer_set_context (view->renderer,
+ gimp_get_user_context (gimp));
+ gimp_view_renderer_set_color_config (view->renderer,
+ gimp_display_shell_get_color_config (shell));
+
+ gimp_navigation_editor_set_shell (editor, shell);
+
+ }
+ else
+ {
+ GtkWidget *hscale;
+ GtkWidget *hbox;
+
+ editor = g_object_new (GIMP_TYPE_NAVIGATION_EDITOR,
+ "menu-factory", menu_factory,
+ "menu-identifier", "<NavigationEditor>",
+ NULL);
+
+ gtk_widget_set_size_request (editor->view,
+ GIMP_VIEW_SIZE_HUGE,
+ GIMP_VIEW_SIZE_HUGE);
+ gimp_view_set_expand (GIMP_VIEW (editor->view), TRUE);
+
+ /* the editor buttons */
+
+ editor->zoom_out_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-zoom-out", NULL);
+
+ editor->zoom_in_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-zoom-in", NULL);
+
+ editor->zoom_100_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-zoom-1-1", NULL);
+
+ editor->zoom_fit_in_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-zoom-fit-in", NULL);
+
+ editor->zoom_fill_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-zoom-fill", NULL);
+
+ editor->shrink_wrap_button =
+ gimp_editor_add_action_button (GIMP_EDITOR (editor), "view",
+ "view-shrink-wrap", NULL);
+
+ /* the zoom scale */
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+ gtk_box_pack_end (GTK_BOX (editor), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ editor->zoom_adjustment =
+ GTK_ADJUSTMENT (gtk_adjustment_new (0.0, -8.0, 8.0, 0.5, 1.0, 0.0));
+
+ g_signal_connect (editor->zoom_adjustment, "value-changed",
+ G_CALLBACK (gimp_navigation_editor_zoom_adj_changed),
+ editor);
+
+ hscale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL,
+ editor->zoom_adjustment);
+ gtk_scale_set_draw_value (GTK_SCALE (hscale), FALSE);
+ gtk_box_pack_start (GTK_BOX (hbox), hscale, TRUE, TRUE, 0);
+ gtk_widget_show (hscale);
+
+ /* the zoom label */
+
+ editor->zoom_label = gtk_label_new ("100%");
+ gtk_label_set_width_chars (GTK_LABEL (editor->zoom_label), 7);
+ gtk_box_pack_start (GTK_BOX (hbox), editor->zoom_label, FALSE, FALSE, 0);
+ gtk_widget_show (editor->zoom_label);
+ }
+
+ gimp_view_renderer_set_background (GIMP_VIEW (editor->view)->renderer,
+ GIMP_ICON_TEXTURE);
+
+ return GTK_WIDGET (editor);
+}
+
+static void
+gimp_navigation_editor_set_shell (GimpNavigationEditor *editor,
+ GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_NAVIGATION_EDITOR (editor));
+ g_return_if_fail (! shell || GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (shell == editor->shell)
+ return;
+
+ if (editor->shell)
+ {
+ g_signal_handlers_disconnect_by_func (editor->shell,
+ gimp_navigation_editor_shell_infinite_canvas_notify,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->shell,
+ gimp_navigation_editor_shell_scaled,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->shell,
+ gimp_navigation_editor_shell_scrolled,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->shell,
+ gimp_navigation_editor_shell_rotated,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->shell,
+ gimp_navigation_editor_shell_reconnect,
+ editor);
+
+ g_signal_handlers_disconnect_by_func (editor->shell->options,
+ gimp_navigation_editor_options_show_canvas_notify,
+ editor);
+ g_signal_handlers_disconnect_by_func (editor->shell->fullscreen_options,
+ gimp_navigation_editor_options_show_canvas_notify,
+ editor);
+ }
+ else if (shell)
+ {
+ gtk_widget_set_sensitive (GTK_WIDGET (editor), TRUE);
+ }
+
+ editor->shell = shell;
+
+ if (editor->shell)
+ {
+ GimpImage *image = gimp_display_get_image (shell->display);
+
+ g_clear_object (&editor->image_proxy);
+
+ if (image)
+ {
+ editor->image_proxy = gimp_image_proxy_new (image);
+
+ g_signal_connect (
+ editor->image_proxy, "size-changed",
+ G_CALLBACK (gimp_navigation_editor_viewable_size_changed),
+ editor);
+ }
+
+ gimp_view_set_viewable (GIMP_VIEW (editor->view),
+ GIMP_VIEWABLE (editor->image_proxy));
+
+ g_signal_connect (editor->shell, "notify::infinite-canvas",
+ G_CALLBACK (gimp_navigation_editor_shell_infinite_canvas_notify),
+ editor);
+ g_signal_connect (editor->shell, "scaled",
+ G_CALLBACK (gimp_navigation_editor_shell_scaled),
+ editor);
+ g_signal_connect (editor->shell, "scrolled",
+ G_CALLBACK (gimp_navigation_editor_shell_scrolled),
+ editor);
+ g_signal_connect (editor->shell, "rotated",
+ G_CALLBACK (gimp_navigation_editor_shell_rotated),
+ editor);
+ g_signal_connect (editor->shell, "reconnect",
+ G_CALLBACK (gimp_navigation_editor_shell_reconnect),
+ editor);
+
+ g_signal_connect (editor->shell->options, "notify::show-canvas-boundary",
+ G_CALLBACK (gimp_navigation_editor_options_show_canvas_notify),
+ editor);
+ g_signal_connect (editor->shell->fullscreen_options, "notify::show-canvas-boundary",
+ G_CALLBACK (gimp_navigation_editor_options_show_canvas_notify),
+ editor);
+
+ gimp_navigation_editor_shell_scaled (editor->shell, editor);
+ }
+ else
+ {
+ gimp_view_set_viewable (GIMP_VIEW (editor->view), NULL);
+ gtk_widget_set_sensitive (GTK_WIDGET (editor), FALSE);
+
+ g_clear_object (&editor->image_proxy);
+ }
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static gboolean
+gimp_navigation_editor_button_release (GtkWidget *widget,
+ GdkEventButton *bevent,
+ GimpDisplayShell *shell)
+{
+ if (bevent->button == 1)
+ {
+ gtk_widget_hide (shell->nav_popup);
+ }
+
+ return FALSE;
+}
+
+static void
+gimp_navigation_editor_marker_changed (GimpNavigationView *view,
+ gdouble center_x,
+ gdouble center_y,
+ gdouble width,
+ gdouble height,
+ GimpNavigationEditor *editor)
+{
+ GimpViewRenderer *renderer = GIMP_VIEW (editor->view)->renderer;
+
+ if (editor->shell)
+ {
+ if (gimp_display_get_image (editor->shell->display))
+ {
+ GeglRectangle bounding_box;
+
+ bounding_box = gimp_image_proxy_get_bounding_box (
+ GIMP_IMAGE_PROXY (renderer->viewable));
+
+ center_x += bounding_box.x;
+ center_y += bounding_box.y;
+
+ gimp_display_shell_scroll_center_image_xy (editor->shell,
+ center_x, center_y);
+ }
+ }
+}
+
+static void
+gimp_navigation_editor_zoom (GimpNavigationView *view,
+ GimpZoomType direction,
+ GimpNavigationEditor *editor)
+{
+ g_return_if_fail (direction != GIMP_ZOOM_TO);
+
+ if (editor->shell)
+ {
+ if (gimp_display_get_image (editor->shell->display))
+ gimp_display_shell_scale (editor->shell,
+ direction,
+ 0.0,
+ GIMP_ZOOM_FOCUS_BEST_GUESS);
+ }
+}
+
+static void
+gimp_navigation_editor_scroll (GimpNavigationView *view,
+ GdkScrollDirection direction,
+ GimpNavigationEditor *editor)
+{
+ if (editor->shell)
+ {
+ GtkAdjustment *adj = NULL;
+ gdouble value;
+
+ switch (direction)
+ {
+ case GDK_SCROLL_LEFT:
+ case GDK_SCROLL_RIGHT:
+ adj = editor->shell->hsbdata;
+ break;
+
+ case GDK_SCROLL_UP:
+ case GDK_SCROLL_DOWN:
+ adj = editor->shell->vsbdata;
+ break;
+ }
+
+ gimp_assert (adj != NULL);
+
+ value = gtk_adjustment_get_value (adj);
+
+ switch (direction)
+ {
+ case GDK_SCROLL_LEFT:
+ case GDK_SCROLL_UP:
+ value -= gtk_adjustment_get_page_increment (adj) / 2;
+ break;
+
+ case GDK_SCROLL_RIGHT:
+ case GDK_SCROLL_DOWN:
+ value += gtk_adjustment_get_page_increment (adj) / 2;
+ break;
+ }
+
+ value = CLAMP (value,
+ gtk_adjustment_get_lower (adj),
+ gtk_adjustment_get_upper (adj) -
+ gtk_adjustment_get_page_size (adj));
+
+ gtk_adjustment_set_value (adj, value);
+ }
+}
+
+static gboolean
+gimp_navigation_editor_zoom_adj_changed_timeout (gpointer data)
+{
+ GimpNavigationEditor *editor = GIMP_NAVIGATION_EDITOR (data);
+ GtkAdjustment *adj = editor->zoom_adjustment;
+
+ if (gimp_display_get_image (editor->shell->display))
+ gimp_display_shell_scale (editor->shell,
+ GIMP_ZOOM_TO,
+ pow (2.0, gtk_adjustment_get_value (adj)),
+ GIMP_ZOOM_FOCUS_BEST_GUESS);
+
+ editor->scale_timeout = 0;
+
+ return FALSE;
+}
+
+static void
+gimp_navigation_editor_zoom_adj_changed (GtkAdjustment *adj,
+ GimpNavigationEditor *editor)
+{
+ if (editor->scale_timeout)
+ g_source_remove (editor->scale_timeout);
+
+ editor->scale_timeout =
+ g_timeout_add (UPDATE_DELAY,
+ gimp_navigation_editor_zoom_adj_changed_timeout,
+ editor);
+}
+
+static void
+gimp_navigation_editor_shell_infinite_canvas_notify (GimpDisplayShell *shell,
+ const GParamSpec *pspec,
+ GimpNavigationEditor *editor)
+{
+ gimp_navigation_editor_update_marker (editor);
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_shell_scaled (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor)
+{
+ if (editor->zoom_label)
+ {
+ gchar *str;
+
+ g_object_get (shell->zoom,
+ "percentage", &str,
+ NULL);
+ gtk_label_set_text (GTK_LABEL (editor->zoom_label), str);
+ g_free (str);
+ }
+
+ if (editor->zoom_adjustment)
+ {
+ gdouble val;
+
+ val = log (gimp_zoom_model_get_factor (shell->zoom)) / G_LN2;
+
+ g_signal_handlers_block_by_func (editor->zoom_adjustment,
+ gimp_navigation_editor_zoom_adj_changed,
+ editor);
+
+ gtk_adjustment_set_value (editor->zoom_adjustment, val);
+
+ g_signal_handlers_unblock_by_func (editor->zoom_adjustment,
+ gimp_navigation_editor_zoom_adj_changed,
+ editor);
+ }
+
+ gimp_navigation_editor_update_marker (editor);
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_shell_scrolled (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor)
+{
+ gimp_navigation_editor_update_marker (editor);
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_shell_rotated (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor)
+{
+ gimp_navigation_editor_update_marker (editor);
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_viewable_size_changed (GimpViewable *viewable,
+ GimpNavigationEditor *editor)
+{
+ gimp_navigation_editor_update_marker (editor);
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_options_show_canvas_notify (GimpDisplayOptions *options,
+ const GParamSpec *pspec,
+ GimpNavigationEditor *editor)
+{
+ gimp_navigation_editor_update_marker (editor);
+}
+
+static void
+gimp_navigation_editor_shell_reconnect (GimpDisplayShell *shell,
+ GimpNavigationEditor *editor)
+{
+ GimpImage *image = gimp_display_get_image (shell->display);
+
+ g_clear_object (&editor->image_proxy);
+
+ if (image)
+ {
+ editor->image_proxy = gimp_image_proxy_new (image);
+
+ g_signal_connect (
+ editor->image_proxy, "size-changed",
+ G_CALLBACK (gimp_navigation_editor_viewable_size_changed),
+ editor);
+ }
+
+ gimp_view_set_viewable (GIMP_VIEW (editor->view),
+ GIMP_VIEWABLE (editor->image_proxy));
+
+ if (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)))
+ gimp_ui_manager_update (gimp_editor_get_ui_manager (GIMP_EDITOR (editor)),
+ gimp_editor_get_popup_data (GIMP_EDITOR (editor)));
+}
+
+static void
+gimp_navigation_editor_update_marker (GimpNavigationEditor *editor)
+{
+ GimpViewRenderer *renderer = GIMP_VIEW (editor->view)->renderer;
+ GimpDisplayShell *shell = editor->shell;
+
+ if (renderer->dot_for_dot != shell->dot_for_dot)
+ gimp_view_renderer_set_dot_for_dot (renderer, shell->dot_for_dot);
+
+ if (renderer->viewable)
+ {
+ GimpNavigationView *view = GIMP_NAVIGATION_VIEW (editor->view);
+ GimpImage *image;
+ GeglRectangle bounding_box;
+ gdouble x, y;
+ gdouble w, h;
+
+ image = gimp_image_proxy_get_image (
+ GIMP_IMAGE_PROXY (renderer->viewable));
+
+ gimp_image_proxy_set_show_all (
+ GIMP_IMAGE_PROXY (renderer->viewable),
+ gimp_display_shell_get_infinite_canvas (shell));
+
+ bounding_box = gimp_image_proxy_get_bounding_box (
+ GIMP_IMAGE_PROXY (renderer->viewable));
+
+ gimp_display_shell_scroll_get_viewport (shell, &x, &y, &w, &h);
+ gimp_display_shell_untransform_xy_f (shell,
+ shell->disp_width / 2,
+ shell->disp_height / 2,
+ &x, &y);
+
+ x -= bounding_box.x;
+ y -= bounding_box.y;
+
+ gimp_navigation_view_set_marker (view,
+ x, y, w, h,
+ shell->flip_horizontally,
+ shell->flip_vertically,
+ shell->rotate_angle);
+
+ gimp_navigation_view_set_canvas (
+ view,
+ gimp_display_shell_get_infinite_canvas (shell) &&
+ gimp_display_shell_get_show_canvas (shell),
+ -bounding_box.x, -bounding_box.y,
+ gimp_image_get_width (image), gimp_image_get_height (image));
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 16:47:55 +0000