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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 03:13:10 +0000
commit3c57dd931145d43f2b0aef96c4d178135956bf91 (patch)
tree3de698981e9f0cc2c4f9569b19a5f3595e741f6b /app/display/gimpdisplayshell.c
parentInitial commit. (diff)
downloadgimp-3c57dd931145d43f2b0aef96c4d178135956bf91.tar.xz
gimp-3c57dd931145d43f2b0aef96c4d178135956bf91.zip
Adding upstream version 2.10.36.upstream/2.10.36
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'app/display/gimpdisplayshell.c')
-rw-r--r--app/display/gimpdisplayshell.c2141
1 files changed, 2141 insertions, 0 deletions
diff --git a/app/display/gimpdisplayshell.c b/app/display/gimpdisplayshell.c
new file mode 100644
index 0000000..9603e4f
--- /dev/null
+++ b/app/display/gimpdisplayshell.c
@@ -0,0 +1,2141 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <string.h>
+#include <stdlib.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpmath/gimpmath.h"
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpconfig/gimpconfig.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "display-types.h"
+#include "tools/tools-types.h"
+
+#include "config/gimpcoreconfig.h"
+#include "config/gimpdisplayconfig.h"
+#include "config/gimpdisplayoptions.h"
+
+#include "core/gimp.h"
+#include "core/gimp-utils.h"
+#include "core/gimpchannel.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimpimage-grid.h"
+#include "core/gimpimage-guides.h"
+#include "core/gimpimage-snap.h"
+#include "core/gimppickable.h"
+#include "core/gimpprojectable.h"
+#include "core/gimpprojection.h"
+#include "core/gimpmarshal.h"
+#include "core/gimptemplate.h"
+
+#include "widgets/gimpdevices.h"
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpuimanager.h"
+#include "widgets/gimpwidgets-utils.h"
+
+#include "tools/tool_manager.h"
+
+#include "gimpcanvas.h"
+#include "gimpcanvascanvasboundary.h"
+#include "gimpcanvaslayerboundary.h"
+#include "gimpdisplay.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-appearance.h"
+#include "gimpdisplayshell-callbacks.h"
+#include "gimpdisplayshell-cursor.h"
+#include "gimpdisplayshell-dnd.h"
+#include "gimpdisplayshell-expose.h"
+#include "gimpdisplayshell-filter.h"
+#include "gimpdisplayshell-handlers.h"
+#include "gimpdisplayshell-items.h"
+#include "gimpdisplayshell-profile.h"
+#include "gimpdisplayshell-progress.h"
+#include "gimpdisplayshell-render.h"
+#include "gimpdisplayshell-rotate.h"
+#include "gimpdisplayshell-rulers.h"
+#include "gimpdisplayshell-scale.h"
+#include "gimpdisplayshell-scroll.h"
+#include "gimpdisplayshell-scrollbars.h"
+#include "gimpdisplayshell-selection.h"
+#include "gimpdisplayshell-title.h"
+#include "gimpdisplayshell-tool-events.h"
+#include "gimpdisplayshell-transform.h"
+#include "gimpimagewindow.h"
+#include "gimpmotionbuffer.h"
+#include "gimpstatusbar.h"
+
+#include "about.h"
+#include "gimp-log.h"
+#include "gimp-priorities.h"
+
+#include "gimp-intl.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_POPUP_MANAGER,
+ PROP_INITIAL_SCREEN,
+ PROP_INITIAL_MONITOR,
+ PROP_DISPLAY,
+ PROP_UNIT,
+ PROP_TITLE,
+ PROP_STATUS,
+ PROP_ICON,
+ PROP_SHOW_ALL,
+ PROP_INFINITE_CANVAS
+};
+
+enum
+{
+ SCALED,
+ SCROLLED,
+ ROTATED,
+ RECONNECT,
+ LAST_SIGNAL
+};
+
+
+typedef struct _GimpDisplayShellOverlay GimpDisplayShellOverlay;
+
+struct _GimpDisplayShellOverlay
+{
+ gdouble image_x;
+ gdouble image_y;
+ GimpHandleAnchor anchor;
+ gint spacing_x;
+ gint spacing_y;
+};
+
+
+/* local function prototypes */
+
+static void gimp_color_managed_iface_init (GimpColorManagedInterface *iface);
+
+static void gimp_display_shell_constructed (GObject *object);
+static void gimp_display_shell_dispose (GObject *object);
+static void gimp_display_shell_finalize (GObject *object);
+static void gimp_display_shell_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_display_shell_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gimp_display_shell_unrealize (GtkWidget *widget);
+static void gimp_display_shell_unmap (GtkWidget *widget);
+static void gimp_display_shell_screen_changed (GtkWidget *widget,
+ GdkScreen *previous);
+static gboolean gimp_display_shell_popup_menu (GtkWidget *widget);
+
+static void gimp_display_shell_real_scaled (GimpDisplayShell *shell);
+static void gimp_display_shell_real_scrolled (GimpDisplayShell *shell);
+static void gimp_display_shell_real_rotated (GimpDisplayShell *shell);
+
+static const guint8 *
+ gimp_display_shell_get_icc_profile(GimpColorManaged *managed,
+ gsize *len);
+static GimpColorProfile *
+ gimp_display_shell_get_color_profile(GimpColorManaged *managed);
+static void gimp_display_shell_profile_changed(GimpColorManaged *managed);
+
+static void gimp_display_shell_menu_position (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer data);
+static void gimp_display_shell_zoom_button_callback
+ (GimpDisplayShell *shell,
+ GtkWidget *zoom_button);
+static void gimp_display_shell_sync_config (GimpDisplayShell *shell,
+ GimpDisplayConfig *config);
+
+static void gimp_display_shell_remove_overlay (GtkWidget *canvas,
+ GtkWidget *child,
+ GimpDisplayShell *shell);
+static void gimp_display_shell_transform_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble *x,
+ gdouble *y);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpDisplayShell, gimp_display_shell,
+ GTK_TYPE_EVENT_BOX,
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_PROGRESS,
+ gimp_display_shell_progress_iface_init)
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_COLOR_MANAGED,
+ gimp_color_managed_iface_init))
+
+
+#define parent_class gimp_display_shell_parent_class
+
+static guint display_shell_signals[LAST_SIGNAL] = { 0 };
+
+
+static const gchar display_rc_style[] =
+ "style \"check-button-style\"\n"
+ "{\n"
+ " GtkToggleButton::child-displacement-x = 0\n"
+ " GtkToggleButton::child-displacement-y = 0\n"
+ "}\n"
+ "widget \"*\" style \"check-button-style\"";
+
+static void
+gimp_display_shell_class_init (GimpDisplayShellClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ display_shell_signals[SCALED] =
+ g_signal_new ("scaled",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpDisplayShellClass, scaled),
+ NULL, NULL,
+ gimp_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ display_shell_signals[SCROLLED] =
+ g_signal_new ("scrolled",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpDisplayShellClass, scrolled),
+ NULL, NULL,
+ gimp_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ display_shell_signals[ROTATED] =
+ g_signal_new ("rotated",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpDisplayShellClass, rotated),
+ NULL, NULL,
+ gimp_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ display_shell_signals[RECONNECT] =
+ g_signal_new ("reconnect",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpDisplayShellClass, reconnect),
+ NULL, NULL,
+ gimp_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ object_class->constructed = gimp_display_shell_constructed;
+ object_class->dispose = gimp_display_shell_dispose;
+ object_class->finalize = gimp_display_shell_finalize;
+ object_class->set_property = gimp_display_shell_set_property;
+ object_class->get_property = gimp_display_shell_get_property;
+
+ widget_class->unrealize = gimp_display_shell_unrealize;
+ widget_class->unmap = gimp_display_shell_unmap;
+ widget_class->screen_changed = gimp_display_shell_screen_changed;
+ widget_class->popup_menu = gimp_display_shell_popup_menu;
+
+ klass->scaled = gimp_display_shell_real_scaled;
+ klass->scrolled = gimp_display_shell_real_scrolled;
+ klass->rotated = gimp_display_shell_real_rotated;
+ klass->reconnect = NULL;
+
+ g_object_class_install_property (object_class, PROP_POPUP_MANAGER,
+ g_param_spec_object ("popup-manager",
+ NULL, NULL,
+ GIMP_TYPE_UI_MANAGER,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_INITIAL_SCREEN,
+ g_param_spec_object ("initial-screen",
+ NULL, NULL,
+ GDK_TYPE_SCREEN,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_INITIAL_MONITOR,
+ g_param_spec_int ("initial-monitor",
+ NULL, NULL,
+ 0, 16, 0,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_DISPLAY,
+ g_param_spec_object ("display", NULL, NULL,
+ GIMP_TYPE_DISPLAY,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_UNIT,
+ gimp_param_spec_unit ("unit", NULL, NULL,
+ TRUE, FALSE,
+ GIMP_UNIT_PIXEL,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_TITLE,
+ g_param_spec_string ("title", NULL, NULL,
+ GIMP_NAME,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (object_class, PROP_STATUS,
+ g_param_spec_string ("status", NULL, NULL,
+ NULL,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_ICON,
+ g_param_spec_object ("icon", NULL, NULL,
+ GDK_TYPE_PIXBUF,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_SHOW_ALL,
+ g_param_spec_boolean ("show-all",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class, PROP_INFINITE_CANVAS,
+ g_param_spec_boolean ("infinite-canvas",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READABLE));
+
+ gtk_rc_parse_string (display_rc_style);
+}
+
+static void
+gimp_color_managed_iface_init (GimpColorManagedInterface *iface)
+{
+ iface->get_icc_profile = gimp_display_shell_get_icc_profile;
+ iface->get_color_profile = gimp_display_shell_get_color_profile;
+ iface->profile_changed = gimp_display_shell_profile_changed;
+}
+
+static void
+gimp_display_shell_init (GimpDisplayShell *shell)
+{
+ shell->options = g_object_new (GIMP_TYPE_DISPLAY_OPTIONS, NULL);
+ shell->fullscreen_options = g_object_new (GIMP_TYPE_DISPLAY_OPTIONS_FULLSCREEN, NULL);
+ shell->no_image_options = g_object_new (GIMP_TYPE_DISPLAY_OPTIONS_NO_IMAGE, NULL);
+
+ shell->zoom = gimp_zoom_model_new ();
+ shell->dot_for_dot = TRUE;
+ shell->scale_x = 1.0;
+ shell->scale_y = 1.0;
+
+ shell->show_image = TRUE;
+
+ shell->show_all = FALSE;
+
+ gimp_display_shell_items_init (shell);
+
+ shell->icon_size = 128;
+ shell->icon_size_small = 96;
+
+ shell->cursor_handedness = GIMP_HANDEDNESS_RIGHT;
+ shell->current_cursor = (GimpCursorType) -1;
+ shell->tool_cursor = GIMP_TOOL_CURSOR_NONE;
+ shell->cursor_modifier = GIMP_CURSOR_MODIFIER_NONE;
+ shell->override_cursor = (GimpCursorType) -1;
+
+ shell->filter_format = babl_format ("R'G'B'A float");
+
+ shell->motion_buffer = gimp_motion_buffer_new ();
+
+ g_signal_connect (shell->motion_buffer, "stroke",
+ G_CALLBACK (gimp_display_shell_buffer_stroke),
+ shell);
+ g_signal_connect (shell->motion_buffer, "hover",
+ G_CALLBACK (gimp_display_shell_buffer_hover),
+ shell);
+
+ shell->zoom_focus_pointer_queue = g_queue_new ();
+
+ gtk_widget_set_events (GTK_WIDGET (shell), (GDK_POINTER_MOTION_MASK |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_KEY_PRESS_MASK |
+ GDK_KEY_RELEASE_MASK |
+ GDK_FOCUS_CHANGE_MASK |
+ GDK_VISIBILITY_NOTIFY_MASK |
+ GDK_SCROLL_MASK));
+
+ /* zoom model callback */
+ g_signal_connect_swapped (shell->zoom, "zoomed",
+ G_CALLBACK (gimp_display_shell_scale_update),
+ shell);
+
+ /* active display callback */
+ g_signal_connect (shell, "button-press-event",
+ G_CALLBACK (gimp_display_shell_events),
+ shell);
+ g_signal_connect (shell, "button-release-event",
+ G_CALLBACK (gimp_display_shell_events),
+ shell);
+ g_signal_connect (shell, "key-press-event",
+ G_CALLBACK (gimp_display_shell_events),
+ shell);
+
+ gimp_help_connect (GTK_WIDGET (shell), gimp_standard_help_func,
+ GIMP_HELP_IMAGE_WINDOW, NULL);
+}
+
+static void
+gimp_display_shell_constructed (GObject *object)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
+ GimpDisplayConfig *config;
+ GimpImage *image;
+ GtkWidget *main_vbox;
+ GtkWidget *upper_hbox;
+ GtkWidget *right_vbox;
+ GtkWidget *lower_hbox;
+ GtkWidget *inner_table;
+ GtkWidget *gtk_image;
+ GimpAction *action;
+ gint image_width;
+ gint image_height;
+ gint shell_width;
+ gint shell_height;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (GIMP_IS_UI_MANAGER (shell->popup_manager));
+ gimp_assert (GIMP_IS_DISPLAY (shell->display));
+
+ config = shell->display->config;
+ image = gimp_display_get_image (shell->display);
+
+ gimp_display_shell_profile_init (shell);
+
+ if (image)
+ {
+ image_width = gimp_image_get_width (image);
+ image_height = gimp_image_get_height (image);
+ }
+ else
+ {
+ /* These values are arbitrary. The width is determined by the
+ * menubar and the height is chosen to give a window aspect
+ * ratio of roughly 3:1 (as requested by the UI team).
+ */
+ image_width = GIMP_DEFAULT_IMAGE_WIDTH;
+ image_height = GIMP_DEFAULT_IMAGE_HEIGHT / 3;
+ }
+
+ shell->dot_for_dot = config->default_dot_for_dot;
+
+ if (config->monitor_res_from_gdk)
+ {
+ gimp_get_monitor_resolution (shell->initial_screen,
+ shell->initial_monitor,
+ &shell->monitor_xres, &shell->monitor_yres);
+ }
+ else
+ {
+ shell->monitor_xres = config->monitor_xres;
+ shell->monitor_yres = config->monitor_yres;
+ }
+
+ /* adjust the initial scale -- so that window fits on screen. */
+ if (image)
+ {
+ gimp_display_shell_set_initial_scale (shell, 1.0, //scale,
+ &shell_width, &shell_height);
+ }
+ else
+ {
+ shell_width = -1;
+ shell_height = image_height;
+ }
+
+ gimp_display_shell_sync_config (shell, config);
+
+ /* GtkTable widgets are not able to shrink a row/column correctly if
+ * widgets are attached with GTK_EXPAND even if those widgets have
+ * other rows/columns in their rowspan/colspan where they could
+ * nicely expand without disturbing the row/column which is supposed
+ * to shrink. --Mitch
+ *
+ * Changed the packing to use hboxes and vboxes which behave nicer:
+ *
+ * shell
+ * |
+ * +-- main_vbox
+ * |
+ * +-- upper_hbox
+ * | |
+ * | +-- inner_table
+ * | | |
+ * | | +-- origin
+ * | | +-- hruler
+ * | | +-- vruler
+ * | | +-- canvas
+ * | |
+ * | +-- right_vbox
+ * | |
+ * | +-- zoom_on_resize_button
+ * | +-- vscrollbar
+ * |
+ * +-- lower_hbox
+ * | |
+ * | +-- quick_mask
+ * | +-- hscrollbar
+ * | +-- navbutton
+ * |
+ * +-- statusbar
+ *
+ * Note that we separate "shell" and "main_vbox", so that we can make
+ * "shell" a GtkEventBox, giving it its own window. This isolates our
+ * events from those of our ancestors, avoiding some potential slowdowns,
+ * and making things generally smoother. See bug #778966.
+ */
+
+ /* first, set up the container hierarchy *********************************/
+
+ /* the root vbox */
+
+ main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+ gtk_container_add (GTK_CONTAINER (shell), main_vbox);
+ gtk_widget_show (main_vbox);
+
+ /* a hbox for the inner_table and the vertical scrollbar */
+ upper_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+ gtk_box_pack_start (GTK_BOX (main_vbox), upper_hbox, TRUE, TRUE, 0);
+ gtk_widget_show (upper_hbox);
+
+ /* the table containing origin, rulers and the canvas */
+ inner_table = gtk_table_new (2, 2, FALSE);
+ gtk_table_set_col_spacing (GTK_TABLE (inner_table), 0, 0);
+ gtk_table_set_row_spacing (GTK_TABLE (inner_table), 0, 0);
+ gtk_box_pack_start (GTK_BOX (upper_hbox), inner_table, TRUE, TRUE, 0);
+ gtk_widget_show (inner_table);
+
+ /* the vbox containing the color button and the vertical scrollbar */
+ right_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 1);
+ gtk_box_pack_start (GTK_BOX (upper_hbox), right_vbox, FALSE, FALSE, 0);
+ gtk_widget_show (right_vbox);
+
+ /* the hbox containing the quickmask button, vertical scrollbar and
+ * the navigation button
+ */
+ lower_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 1);
+ gtk_box_pack_start (GTK_BOX (main_vbox), lower_hbox, FALSE, FALSE, 0);
+ gtk_widget_show (lower_hbox);
+
+ /* create the scrollbars *************************************************/
+
+ /* the horizontal scrollbar */
+ shell->hsbdata = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, image_width,
+ 1, 1, image_width));
+ shell->hsb = gtk_scrollbar_new (GTK_ORIENTATION_HORIZONTAL, shell->hsbdata);
+ gtk_widget_set_can_focus (shell->hsb, FALSE);
+
+ /* the vertical scrollbar */
+ shell->vsbdata = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, image_height,
+ 1, 1, image_height));
+ shell->vsb = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, shell->vsbdata);
+ gtk_widget_set_can_focus (shell->vsb, FALSE);
+
+ /* create the contents of the inner_table ********************************/
+
+ /* the menu popup button */
+ shell->origin = gtk_event_box_new ();
+
+ gtk_image = gtk_image_new_from_icon_name (GIMP_ICON_MENU_RIGHT,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (shell->origin), gtk_image);
+ gtk_widget_show (gtk_image);
+
+ g_signal_connect (shell->origin, "button-press-event",
+ G_CALLBACK (gimp_display_shell_origin_button_press),
+ shell);
+
+ gimp_help_set_help_data (shell->origin,
+ _("Access the image menu"),
+ GIMP_HELP_IMAGE_WINDOW_ORIGIN);
+
+ shell->canvas = gimp_canvas_new (config);
+ gtk_widget_set_size_request (shell->canvas, shell_width, shell_height);
+ gtk_container_set_border_width (GTK_CONTAINER (shell->canvas), 10);
+
+ g_signal_connect (shell->canvas, "remove",
+ G_CALLBACK (gimp_display_shell_remove_overlay),
+ shell);
+
+ gimp_display_shell_dnd_init (shell);
+ gimp_display_shell_selection_init (shell);
+
+ /* the horizontal ruler */
+ shell->hrule = gimp_ruler_new (GTK_ORIENTATION_HORIZONTAL);
+ gtk_widget_set_events (GTK_WIDGET (shell->hrule),
+ GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
+
+ gimp_ruler_add_track_widget (GIMP_RULER (shell->hrule), shell->canvas);
+ g_signal_connect (shell->hrule, "button-press-event",
+ G_CALLBACK (gimp_display_shell_hruler_button_press),
+ shell);
+
+ gimp_help_set_help_data (shell->hrule, NULL, GIMP_HELP_IMAGE_WINDOW_RULER);
+
+ /* the vertical ruler */
+ shell->vrule = gimp_ruler_new (GTK_ORIENTATION_VERTICAL);
+ gtk_widget_set_events (GTK_WIDGET (shell->vrule),
+ GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
+
+ gimp_ruler_add_track_widget (GIMP_RULER (shell->vrule), shell->canvas);
+ g_signal_connect (shell->vrule, "button-press-event",
+ G_CALLBACK (gimp_display_shell_vruler_button_press),
+ shell);
+
+ gimp_help_set_help_data (shell->vrule, NULL, GIMP_HELP_IMAGE_WINDOW_RULER);
+
+ /* set the rulers as track widgets for each other, so we don't end up
+ * with one ruler wrongly being stuck a few pixels off while we are
+ * hovering the other
+ */
+ gimp_ruler_add_track_widget (GIMP_RULER (shell->hrule), shell->vrule);
+ gimp_ruler_add_track_widget (GIMP_RULER (shell->vrule), shell->hrule);
+
+ gimp_devices_add_widget (shell->display->gimp, shell->hrule);
+ gimp_devices_add_widget (shell->display->gimp, shell->vrule);
+
+ g_signal_connect (shell->canvas, "grab-notify",
+ G_CALLBACK (gimp_display_shell_canvas_grab_notify),
+ shell);
+
+ g_signal_connect (shell->canvas, "realize",
+ G_CALLBACK (gimp_display_shell_canvas_realize),
+ shell);
+ g_signal_connect (shell->canvas, "realize",
+ G_CALLBACK (gimp_display_shell_canvas_realize_after),
+ shell);
+ g_signal_connect (shell->canvas, "size-allocate",
+ G_CALLBACK (gimp_display_shell_canvas_size_allocate),
+ shell);
+ g_signal_connect (shell->canvas, "expose-event",
+ G_CALLBACK (gimp_display_shell_canvas_expose),
+ shell);
+
+ g_signal_connect (shell->canvas, "enter-notify-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "leave-notify-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "proximity-in-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "proximity-out-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "focus-in-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "focus-out-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "button-press-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "button-release-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "scroll-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "motion-notify-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "key-press-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+ g_signal_connect (shell->canvas, "key-release-event",
+ G_CALLBACK (gimp_display_shell_canvas_tool_events),
+ shell);
+
+ /* create the contents of the right_vbox *********************************/
+
+ shell->zoom_button = g_object_new (GTK_TYPE_CHECK_BUTTON,
+ "draw-indicator", FALSE,
+ "relief", GTK_RELIEF_NONE,
+ "width-request", 18,
+ "height-request", 18,
+ NULL);
+ gtk_widget_set_can_focus (shell->zoom_button, FALSE);
+
+ gtk_image = gtk_image_new_from_icon_name (GIMP_ICON_ZOOM_FOLLOW_WINDOW,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (shell->zoom_button), gtk_image);
+ gtk_widget_show (gtk_image);
+
+ gimp_help_set_help_data (shell->zoom_button,
+ _("Zoom image when window size changes"),
+ GIMP_HELP_IMAGE_WINDOW_ZOOM_FOLLOW_BUTTON);
+
+ g_signal_connect_swapped (shell->zoom_button, "toggled",
+ G_CALLBACK (gimp_display_shell_zoom_button_callback),
+ shell);
+
+ /* create the contents of the lower_hbox *********************************/
+
+ /* the quick mask button */
+ shell->quick_mask_button = g_object_new (GTK_TYPE_CHECK_BUTTON,
+ "draw-indicator", FALSE,
+ "relief", GTK_RELIEF_NONE,
+ "width-request", 18,
+ "height-request", 18,
+ NULL);
+ gtk_widget_set_can_focus (shell->quick_mask_button, FALSE);
+
+ gtk_image = gtk_image_new_from_icon_name (GIMP_ICON_QUICK_MASK_OFF,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (shell->quick_mask_button), gtk_image);
+ gtk_widget_show (gtk_image);
+
+ action = gimp_ui_manager_find_action (shell->popup_manager,
+ "quick-mask", "quick-mask-toggle");
+ if (action)
+ gimp_widget_set_accel_help (shell->quick_mask_button, action);
+ else
+ gimp_help_set_help_data (shell->quick_mask_button,
+ _("Toggle Quick Mask"),
+ GIMP_HELP_IMAGE_WINDOW_QUICK_MASK_BUTTON);
+
+ g_signal_connect (shell->quick_mask_button, "toggled",
+ G_CALLBACK (gimp_display_shell_quick_mask_toggled),
+ shell);
+ g_signal_connect (shell->quick_mask_button, "button-press-event",
+ G_CALLBACK (gimp_display_shell_quick_mask_button_press),
+ shell);
+
+ /* the navigation window button */
+ shell->nav_ebox = gtk_event_box_new ();
+
+ gtk_image = gtk_image_new_from_icon_name (GIMP_ICON_DIALOG_NAVIGATION,
+ GTK_ICON_SIZE_MENU);
+ gtk_container_add (GTK_CONTAINER (shell->nav_ebox), gtk_image);
+ gtk_widget_show (gtk_image);
+
+ g_signal_connect (shell->nav_ebox, "button-press-event",
+ G_CALLBACK (gimp_display_shell_navigation_button_press),
+ shell);
+
+ gimp_help_set_help_data (shell->nav_ebox,
+ _("Navigate the image display"),
+ GIMP_HELP_IMAGE_WINDOW_NAV_BUTTON);
+
+ /* the statusbar ********************************************************/
+
+ shell->statusbar = gimp_statusbar_new ();
+ gimp_statusbar_set_shell (GIMP_STATUSBAR (shell->statusbar), shell);
+ gimp_help_set_help_data (shell->statusbar, NULL,
+ GIMP_HELP_IMAGE_WINDOW_STATUS_BAR);
+ gtk_box_pack_end (GTK_BOX (main_vbox), shell->statusbar, FALSE, FALSE, 0);
+
+ /* pack all the widgets **************************************************/
+
+ /* fill the inner_table */
+ gtk_table_attach (GTK_TABLE (inner_table), shell->origin, 0, 1, 0, 1,
+ GTK_FILL, GTK_FILL, 0, 0);
+ gtk_table_attach (GTK_TABLE (inner_table), shell->hrule, 1, 2, 0, 1,
+ GTK_EXPAND | GTK_SHRINK | GTK_FILL, GTK_FILL, 0, 0);
+ gtk_table_attach (GTK_TABLE (inner_table), shell->vrule, 0, 1, 1, 2,
+ GTK_FILL, GTK_EXPAND | GTK_SHRINK | GTK_FILL, 0, 0);
+ gtk_table_attach (GTK_TABLE (inner_table), shell->canvas, 1, 2, 1, 2,
+ GTK_EXPAND | GTK_SHRINK | GTK_FILL,
+ GTK_EXPAND | GTK_SHRINK | GTK_FILL, 0, 0);
+
+ /* fill the right_vbox */
+ gtk_box_pack_start (GTK_BOX (right_vbox),
+ shell->zoom_button, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (right_vbox),
+ shell->vsb, TRUE, TRUE, 0);
+
+ /* fill the lower_hbox */
+ gtk_box_pack_start (GTK_BOX (lower_hbox),
+ shell->quick_mask_button, FALSE, FALSE, 0);
+ gtk_box_pack_start (GTK_BOX (lower_hbox),
+ shell->hsb, TRUE, TRUE, 0);
+ gtk_box_pack_start (GTK_BOX (lower_hbox),
+ shell->nav_ebox, FALSE, FALSE, 0);
+
+ /* show everything that is always shown ***********************************/
+
+ gtk_widget_show (GTK_WIDGET (shell->canvas));
+
+ if (image)
+ {
+ gimp_display_shell_connect (shell);
+
+ /* After connecting to the image we want to center it. Since we
+ * not even finished creating the display shell, we can safely
+ * assume we will get a size-allocate later.
+ */
+ shell->size_allocate_center_image = TRUE;
+ }
+ else
+ {
+#if 0
+ /* Disabled because it sets GDK_POINTER_MOTION_HINT on
+ * shell->canvas. For info see Bug 677375
+ */
+ gimp_help_set_help_data (shell->canvas,
+ _("Drop image files here to open them"),
+ NULL);
+#endif
+
+ gimp_statusbar_empty (GIMP_STATUSBAR (shell->statusbar));
+ }
+
+ /* make sure the information is up-to-date */
+ gimp_display_shell_scale_update (shell);
+
+ gimp_display_shell_set_show_all (shell, config->default_show_all);
+}
+
+static void
+gimp_display_shell_dispose (GObject *object)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
+
+ if (shell->display && gimp_display_get_shell (shell->display))
+ gimp_display_shell_disconnect (shell);
+
+ shell->popup_manager = NULL;
+
+ if (shell->selection)
+ gimp_display_shell_selection_free (shell);
+
+ gimp_display_shell_filter_set (shell, NULL);
+
+ if (shell->filter_idle_id)
+ {
+ g_source_remove (shell->filter_idle_id);
+ shell->filter_idle_id = 0;
+ }
+
+ g_clear_pointer (&shell->mask_surface, cairo_surface_destroy);
+ g_clear_pointer (&shell->checkerboard, cairo_pattern_destroy);
+
+ gimp_display_shell_profile_finalize (shell);
+
+ g_clear_object (&shell->filter_buffer);
+ shell->filter_data = NULL;
+ shell->filter_stride = 0;
+
+ g_clear_object (&shell->mask);
+
+ gimp_display_shell_items_free (shell);
+
+ g_clear_object (&shell->motion_buffer);
+
+ g_clear_pointer (&shell->zoom_focus_pointer_queue, g_queue_free);
+
+ if (shell->title_idle_id)
+ {
+ g_source_remove (shell->title_idle_id);
+ shell->title_idle_id = 0;
+ }
+
+ if (shell->fill_idle_id)
+ {
+ g_source_remove (shell->fill_idle_id);
+ shell->fill_idle_id = 0;
+ }
+
+ g_clear_pointer (&shell->nav_popup, gtk_widget_destroy);
+
+ if (shell->blink_timeout_id)
+ {
+ g_source_remove (shell->blink_timeout_id);
+ shell->blink_timeout_id = 0;
+ }
+
+ shell->display = NULL;
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gimp_display_shell_finalize (GObject *object)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
+
+ g_clear_object (&shell->zoom);
+ g_clear_pointer (&shell->rotate_transform, g_free);
+ g_clear_pointer (&shell->rotate_untransform, g_free);
+ g_clear_object (&shell->options);
+ g_clear_object (&shell->fullscreen_options);
+ g_clear_object (&shell->no_image_options);
+ g_clear_pointer (&shell->title, g_free);
+ g_clear_pointer (&shell->status, g_free);
+ g_clear_object (&shell->icon);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_display_shell_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
+
+ switch (property_id)
+ {
+ case PROP_POPUP_MANAGER:
+ shell->popup_manager = g_value_get_object (value);
+ break;
+ case PROP_INITIAL_SCREEN:
+ shell->initial_screen = g_value_get_object (value);
+ break;
+ case PROP_INITIAL_MONITOR:
+ shell->initial_monitor = g_value_get_int (value);
+ break;
+ case PROP_DISPLAY:
+ shell->display = g_value_get_object (value);
+ break;
+ case PROP_UNIT:
+ gimp_display_shell_set_unit (shell, g_value_get_int (value));
+ break;
+ case PROP_TITLE:
+ g_free (shell->title);
+ shell->title = g_value_dup_string (value);
+ break;
+ case PROP_STATUS:
+ g_free (shell->status);
+ shell->status = g_value_dup_string (value);
+ break;
+ case PROP_ICON:
+ if (shell->icon)
+ g_object_unref (shell->icon);
+ shell->icon = g_value_dup_object (value);
+ break;
+ case PROP_SHOW_ALL:
+ gimp_display_shell_set_show_all (shell, g_value_get_boolean (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_display_shell_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
+
+ switch (property_id)
+ {
+ case PROP_POPUP_MANAGER:
+ g_value_set_object (value, shell->popup_manager);
+ break;
+ case PROP_INITIAL_SCREEN:
+ g_value_set_object (value, shell->initial_screen);
+ break;
+ case PROP_INITIAL_MONITOR:
+ g_value_set_int (value, shell->initial_monitor);
+ break;
+ case PROP_DISPLAY:
+ g_value_set_object (value, shell->display);
+ break;
+ case PROP_UNIT:
+ g_value_set_int (value, shell->unit);
+ break;
+ case PROP_TITLE:
+ g_value_set_string (value, shell->title);
+ break;
+ case PROP_STATUS:
+ g_value_set_string (value, shell->status);
+ break;
+ case PROP_ICON:
+ g_value_set_object (value, shell->icon);
+ break;
+ case PROP_SHOW_ALL:
+ g_value_set_boolean (value, shell->show_all);
+ break;
+ case PROP_INFINITE_CANVAS:
+ g_value_set_boolean (value,
+ gimp_display_shell_get_infinite_canvas (shell));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_display_shell_unrealize (GtkWidget *widget)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
+
+ if (shell->nav_popup)
+ gtk_widget_unrealize (shell->nav_popup);
+
+ GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
+}
+
+static void
+gimp_display_shell_unmap (GtkWidget *widget)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
+
+ gimp_display_shell_selection_undraw (shell);
+
+ GTK_WIDGET_CLASS (parent_class)->unmap (widget);
+}
+
+static void
+gimp_display_shell_screen_changed (GtkWidget *widget,
+ GdkScreen *previous)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
+
+ if (GTK_WIDGET_CLASS (parent_class)->screen_changed)
+ GTK_WIDGET_CLASS (parent_class)->screen_changed (widget, previous);
+
+ if (shell->display->config->monitor_res_from_gdk)
+ {
+ gimp_get_monitor_resolution (gtk_widget_get_screen (widget),
+ gimp_widget_get_monitor (widget),
+ &shell->monitor_xres,
+ &shell->monitor_yres);
+ }
+ else
+ {
+ shell->monitor_xres = shell->display->config->monitor_xres;
+ shell->monitor_yres = shell->display->config->monitor_yres;
+ }
+}
+
+static gboolean
+gimp_display_shell_popup_menu (GtkWidget *widget)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
+
+ gimp_context_set_display (gimp_get_user_context (shell->display->gimp),
+ shell->display);
+
+ gimp_ui_manager_ui_popup (shell->popup_manager, "/dummy-menubar/image-popup",
+ GTK_WIDGET (shell),
+ gimp_display_shell_menu_position,
+ shell->origin,
+ NULL, NULL);
+
+ return TRUE;
+}
+
+static void
+gimp_display_shell_real_scaled (GimpDisplayShell *shell)
+{
+ GimpContext *user_context;
+
+ if (! shell->display)
+ return;
+
+ gimp_display_shell_title_update (shell);
+
+ user_context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (user_context))
+ {
+ gimp_display_shell_update_priority_rect (shell);
+
+ gimp_ui_manager_update (shell->popup_manager, shell->display);
+ }
+}
+
+static void
+gimp_display_shell_real_scrolled (GimpDisplayShell *shell)
+{
+ GimpContext *user_context;
+
+ if (! shell->display)
+ return;
+
+ gimp_display_shell_title_update (shell);
+
+ user_context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (user_context))
+ {
+ gimp_display_shell_update_priority_rect (shell);
+
+ }
+}
+
+static void
+gimp_display_shell_real_rotated (GimpDisplayShell *shell)
+{
+ GimpContext *user_context;
+
+ if (! shell->display)
+ return;
+
+ gimp_display_shell_title_update (shell);
+
+ user_context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (user_context))
+ {
+ gimp_display_shell_update_priority_rect (shell);
+
+ gimp_ui_manager_update (shell->popup_manager, shell->display);
+ }
+}
+
+static const guint8 *
+gimp_display_shell_get_icc_profile (GimpColorManaged *managed,
+ gsize *len)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (managed);
+ GimpImage *image = gimp_display_get_image (shell->display);
+
+ if (image)
+ return gimp_color_managed_get_icc_profile (GIMP_COLOR_MANAGED (image), len);
+
+ return NULL;
+}
+
+static GimpColorProfile *
+gimp_display_shell_get_color_profile (GimpColorManaged *managed)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (managed);
+ GimpImage *image = gimp_display_get_image (shell->display);
+
+ if (image)
+ return gimp_color_managed_get_color_profile (GIMP_COLOR_MANAGED (image));
+
+ return NULL;
+}
+
+static void
+gimp_display_shell_profile_changed (GimpColorManaged *managed)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (managed);
+
+ gimp_display_shell_profile_update (shell);
+ gimp_display_shell_expose_full (shell);
+}
+
+static void
+gimp_display_shell_menu_position (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gpointer data)
+{
+ gimp_button_menu_position (GTK_WIDGET (data), menu, GTK_POS_RIGHT, x, y);
+}
+
+static void
+gimp_display_shell_zoom_button_callback (GimpDisplayShell *shell,
+ GtkWidget *zoom_button)
+{
+ shell->zoom_on_resize =
+ gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (zoom_button));
+
+ if (shell->zoom_on_resize &&
+ gimp_display_shell_scale_image_is_within_viewport (shell, NULL, NULL))
+ {
+ /* Implicitly make a View -> Fit Image in Window */
+ gimp_display_shell_scale_fit_in (shell);
+ }
+}
+
+static void
+gimp_display_shell_sync_config (GimpDisplayShell *shell,
+ GimpDisplayConfig *config)
+{
+ gimp_config_sync (G_OBJECT (config->default_view),
+ G_OBJECT (shell->options), 0);
+ gimp_config_sync (G_OBJECT (config->default_fullscreen_view),
+ G_OBJECT (shell->fullscreen_options), 0);
+}
+
+static void
+gimp_display_shell_remove_overlay (GtkWidget *canvas,
+ GtkWidget *child,
+ GimpDisplayShell *shell)
+{
+ shell->children = g_list_remove (shell->children, child);
+}
+
+static void
+gimp_display_shell_transform_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble *x,
+ gdouble *y)
+{
+ GimpDisplayShellOverlay *overlay;
+ GtkRequisition requisition;
+
+ overlay = g_object_get_data (G_OBJECT (child), "image-coords-overlay");
+
+ gimp_display_shell_transform_xy_f (shell,
+ overlay->image_x,
+ overlay->image_y,
+ x, y);
+
+ gtk_widget_size_request (child, &requisition);
+
+ switch (overlay->anchor)
+ {
+ case GIMP_HANDLE_ANCHOR_CENTER:
+ *x -= requisition.width / 2;
+ *y -= requisition.height / 2;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_NORTH:
+ *x -= requisition.width / 2;
+ *y += overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_NORTH_WEST:
+ *x += overlay->spacing_x;
+ *y += overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_NORTH_EAST:
+ *x -= requisition.width + overlay->spacing_x;
+ *y += overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_SOUTH:
+ *x -= requisition.width / 2;
+ *y -= requisition.height + overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_SOUTH_WEST:
+ *x += overlay->spacing_x;
+ *y -= requisition.height + overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_SOUTH_EAST:
+ *x -= requisition.width + overlay->spacing_x;
+ *y -= requisition.height + overlay->spacing_y;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_WEST:
+ *x += overlay->spacing_x;
+ *y -= requisition.height / 2;
+ break;
+
+ case GIMP_HANDLE_ANCHOR_EAST:
+ *x -= requisition.width + overlay->spacing_x;
+ *y -= requisition.height / 2;
+ break;
+ }
+}
+
+
+/* public functions */
+
+GtkWidget *
+gimp_display_shell_new (GimpDisplay *display,
+ GimpUnit unit,
+ gdouble scale,
+ GimpUIManager *popup_manager,
+ GdkScreen *screen,
+ gint monitor)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
+ g_return_val_if_fail (GIMP_IS_UI_MANAGER (popup_manager), NULL);
+ g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
+
+ return g_object_new (GIMP_TYPE_DISPLAY_SHELL,
+ "popup-manager", popup_manager,
+ "initial-screen", screen,
+ "initial-monitor", monitor,
+ "display", display,
+ "unit", unit,
+ NULL);
+}
+
+void
+gimp_display_shell_add_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble image_x,
+ gdouble image_y,
+ GimpHandleAnchor anchor,
+ gint spacing_x,
+ gint spacing_y)
+{
+ GimpDisplayShellOverlay *overlay;
+ gdouble x, y;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GTK_IS_WIDGET (shell));
+
+ overlay = g_new0 (GimpDisplayShellOverlay, 1);
+
+ overlay->image_x = image_x;
+ overlay->image_y = image_y;
+ overlay->anchor = anchor;
+ overlay->spacing_x = spacing_x;
+ overlay->spacing_y = spacing_y;
+
+ g_object_set_data_full (G_OBJECT (child), "image-coords-overlay", overlay,
+ (GDestroyNotify) g_free);
+
+ shell->children = g_list_prepend (shell->children, child);
+
+ gimp_display_shell_transform_overlay (shell, child, &x, &y);
+
+ gimp_overlay_box_add_child (GIMP_OVERLAY_BOX (shell->canvas), child, 0.0, 0.0);
+ gimp_overlay_box_set_child_position (GIMP_OVERLAY_BOX (shell->canvas),
+ child, x, y);
+}
+
+void
+gimp_display_shell_move_overlay (GimpDisplayShell *shell,
+ GtkWidget *child,
+ gdouble image_x,
+ gdouble image_y,
+ GimpHandleAnchor anchor,
+ gint spacing_x,
+ gint spacing_y)
+{
+ GimpDisplayShellOverlay *overlay;
+ gdouble x, y;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GTK_IS_WIDGET (shell));
+
+ overlay = g_object_get_data (G_OBJECT (child), "image-coords-overlay");
+
+ g_return_if_fail (overlay != NULL);
+
+ overlay->image_x = image_x;
+ overlay->image_y = image_y;
+ overlay->anchor = anchor;
+ overlay->spacing_x = spacing_x;
+ overlay->spacing_y = spacing_y;
+
+ gimp_display_shell_transform_overlay (shell, child, &x, &y);
+
+ gimp_overlay_box_set_child_position (GIMP_OVERLAY_BOX (shell->canvas),
+ child, x, y);
+}
+
+GimpImageWindow *
+gimp_display_shell_get_window (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ return GIMP_IMAGE_WINDOW (gtk_widget_get_ancestor (GTK_WIDGET (shell),
+ GIMP_TYPE_IMAGE_WINDOW));
+}
+
+GimpStatusbar *
+gimp_display_shell_get_statusbar (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ return GIMP_STATUSBAR (shell->statusbar);
+}
+
+GimpColorConfig *
+gimp_display_shell_get_color_config (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ return shell->color_config;
+}
+
+void
+gimp_display_shell_present (GimpDisplayShell *shell)
+{
+ GimpImageWindow *window;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ window = gimp_display_shell_get_window (shell);
+
+ if (window)
+ {
+ gimp_image_window_set_active_shell (window, shell);
+
+ gtk_window_present (GTK_WINDOW (window));
+ }
+}
+
+void
+gimp_display_shell_reconnect (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GIMP_IS_DISPLAY (shell->display));
+ g_return_if_fail (gimp_display_get_image (shell->display) != NULL);
+
+ if (shell->fill_idle_id)
+ {
+ g_source_remove (shell->fill_idle_id);
+ shell->fill_idle_id = 0;
+ }
+
+ g_signal_emit (shell, display_shell_signals[RECONNECT], 0);
+
+ gimp_color_managed_profile_changed (GIMP_COLOR_MANAGED (shell));
+
+ gimp_display_shell_scroll_clamp_and_update (shell);
+
+ gimp_display_shell_scaled (shell);
+
+ gimp_display_shell_expose_full (shell);
+}
+
+static gboolean
+gimp_display_shell_blink (GimpDisplayShell *shell)
+{
+ shell->blink_timeout_id = 0;
+
+ if (shell->blink)
+ {
+ shell->blink = FALSE;
+ }
+ else
+ {
+ shell->blink = TRUE;
+
+ shell->blink_timeout_id =
+ g_timeout_add (100, (GSourceFunc) gimp_display_shell_blink, shell);
+ }
+
+ gimp_display_shell_expose_full (shell);
+
+ return FALSE;
+}
+
+void
+gimp_display_shell_empty (GimpDisplayShell *shell)
+{
+ GimpContext *user_context;
+ GimpImageWindow *window;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GIMP_IS_DISPLAY (shell->display));
+ g_return_if_fail (gimp_display_get_image (shell->display) == NULL);
+
+ window = gimp_display_shell_get_window (shell);
+
+ if (shell->fill_idle_id)
+ {
+ g_source_remove (shell->fill_idle_id);
+ shell->fill_idle_id = 0;
+ }
+
+ gimp_display_shell_selection_undraw (shell);
+
+ gimp_display_shell_unset_cursor (shell);
+
+ gimp_display_shell_filter_set (shell, NULL);
+
+ gimp_display_shell_sync_config (shell, shell->display->config);
+
+ gimp_display_shell_appearance_update (shell);
+ gimp_image_window_update_tabs (window);
+#if 0
+ gimp_help_set_help_data (shell->canvas,
+ _("Drop image files here to open them"), NULL);
+#endif
+
+ gimp_statusbar_empty (GIMP_STATUSBAR (shell->statusbar));
+
+ shell->flip_horizontally = FALSE;
+ shell->flip_vertically = FALSE;
+ shell->rotate_angle = 0.0;
+ gimp_display_shell_rotate_update_transform (shell);
+
+ gimp_display_shell_expose_full (shell);
+
+ user_context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (user_context))
+ gimp_ui_manager_update (shell->popup_manager, shell->display);
+
+ shell->blink_timeout_id =
+ g_timeout_add (1403230, (GSourceFunc) gimp_display_shell_blink, shell);
+}
+
+static gboolean
+gimp_display_shell_fill_idle (GimpDisplayShell *shell)
+{
+ GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (shell));
+
+ shell->fill_idle_id = 0;
+
+ if (GTK_IS_WINDOW (toplevel))
+ {
+ gimp_display_shell_scale_shrink_wrap (shell, TRUE);
+
+ gtk_window_present (GTK_WINDOW (toplevel));
+ }
+
+ return FALSE;
+}
+
+void
+gimp_display_shell_fill (GimpDisplayShell *shell,
+ GimpImage *image,
+ GimpUnit unit,
+ gdouble scale)
+{
+ GimpDisplayConfig *config;
+ GimpImageWindow *window;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (GIMP_IS_DISPLAY (shell->display));
+ g_return_if_fail (GIMP_IS_IMAGE (image));
+
+ config = shell->display->config;
+ window = gimp_display_shell_get_window (shell);
+
+ shell->show_image = TRUE;
+
+ shell->dot_for_dot = config->default_dot_for_dot;
+
+ gimp_display_shell_set_unit (shell, unit);
+ gimp_display_shell_set_initial_scale (shell, scale, NULL, NULL);
+ gimp_display_shell_scale_update (shell);
+
+ gimp_display_shell_sync_config (shell, config);
+
+ gimp_image_window_suspend_keep_pos (window);
+ gimp_display_shell_appearance_update (shell);
+ gimp_image_window_resume_keep_pos (window);
+
+ gimp_image_window_update_tabs (window);
+#if 0
+ gimp_help_set_help_data (shell->canvas, NULL, NULL);
+#endif
+
+ gimp_statusbar_fill (GIMP_STATUSBAR (shell->statusbar));
+
+ /* make sure a size-allocate always occurs, even when the rulers and
+ * scrollbars are hidden. see issue #4968.
+ */
+ shell->size_allocate_center_image = TRUE;
+ gtk_widget_queue_resize (GTK_WIDGET (shell->canvas));
+
+ if (shell->blink_timeout_id)
+ {
+ g_source_remove (shell->blink_timeout_id);
+ shell->blink_timeout_id = 0;
+ }
+
+ shell->fill_idle_id =
+ g_idle_add_full (GIMP_PRIORITY_DISPLAY_SHELL_FILL_IDLE,
+ (GSourceFunc) gimp_display_shell_fill_idle, shell,
+ NULL);
+
+ gimp_display_shell_set_show_all (shell, config->default_show_all);
+}
+
+void
+gimp_display_shell_scaled (GimpDisplayShell *shell)
+{
+ GList *list;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ gimp_display_shell_rotate_update_transform (shell);
+
+ for (list = shell->children; list; list = g_list_next (list))
+ {
+ GtkWidget *child = list->data;
+ gdouble x, y;
+
+ gimp_display_shell_transform_overlay (shell, child, &x, &y);
+
+ gimp_overlay_box_set_child_position (GIMP_OVERLAY_BOX (shell->canvas),
+ child, x, y);
+ }
+
+ g_signal_emit (shell, display_shell_signals[SCALED], 0);
+}
+
+void
+gimp_display_shell_scrolled (GimpDisplayShell *shell)
+{
+ GList *list;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ gimp_display_shell_rotate_update_transform (shell);
+
+ for (list = shell->children; list; list = g_list_next (list))
+ {
+ GtkWidget *child = list->data;
+ gdouble x, y;
+
+ gimp_display_shell_transform_overlay (shell, child, &x, &y);
+
+ gimp_overlay_box_set_child_position (GIMP_OVERLAY_BOX (shell->canvas),
+ child, x, y);
+ }
+
+ g_signal_emit (shell, display_shell_signals[SCROLLED], 0);
+}
+
+void
+gimp_display_shell_rotated (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ gimp_display_shell_rotate_update_transform (shell);
+
+ g_signal_emit (shell, display_shell_signals[ROTATED], 0);
+}
+
+void
+gimp_display_shell_set_unit (GimpDisplayShell *shell,
+ GimpUnit unit)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (shell->unit != unit)
+ {
+ shell->unit = unit;
+
+ gimp_display_shell_rulers_update (shell);
+
+ gimp_display_shell_scaled (shell);
+
+ g_object_notify (G_OBJECT (shell), "unit");
+ }
+}
+
+GimpUnit
+gimp_display_shell_get_unit (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), GIMP_UNIT_PIXEL);
+
+ return shell->unit;
+}
+
+gboolean
+gimp_display_shell_snap_coords (GimpDisplayShell *shell,
+ GimpCoords *coords,
+ gint snap_offset_x,
+ gint snap_offset_y,
+ gint snap_width,
+ gint snap_height)
+{
+ GimpImage *image;
+ gboolean snap_to_guides = FALSE;
+ gboolean snap_to_grid = FALSE;
+ gboolean snap_to_canvas = FALSE;
+ gboolean snap_to_vectors = FALSE;
+ gboolean snapped = FALSE;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), FALSE);
+ g_return_val_if_fail (coords != NULL, FALSE);
+
+ image = gimp_display_get_image (shell->display);
+
+ if (gimp_display_shell_get_snap_to_guides (shell) &&
+ gimp_image_get_guides (image))
+ {
+ snap_to_guides = TRUE;
+ }
+
+ if (gimp_display_shell_get_snap_to_grid (shell) &&
+ gimp_image_get_grid (image))
+ {
+ snap_to_grid = TRUE;
+ }
+
+ snap_to_canvas = gimp_display_shell_get_snap_to_canvas (shell);
+
+ if (gimp_display_shell_get_snap_to_vectors (shell) &&
+ gimp_image_get_active_vectors (image))
+ {
+ snap_to_vectors = TRUE;
+ }
+
+ if (snap_to_guides || snap_to_grid || snap_to_canvas || snap_to_vectors)
+ {
+ gint snap_distance;
+ gdouble tx, ty;
+
+ snap_distance = shell->display->config->snap_distance;
+
+ if (snap_width > 0 && snap_height > 0)
+ {
+ snapped = gimp_image_snap_rectangle (image,
+ coords->x + snap_offset_x,
+ coords->y + snap_offset_y,
+ coords->x + snap_offset_x +
+ snap_width,
+ coords->y + snap_offset_y +
+ snap_height,
+ &tx,
+ &ty,
+ FUNSCALEX (shell, snap_distance),
+ FUNSCALEY (shell, snap_distance),
+ snap_to_guides,
+ snap_to_grid,
+ snap_to_canvas,
+ snap_to_vectors);
+ }
+ else
+ {
+ snapped = gimp_image_snap_point (image,
+ coords->x + snap_offset_x,
+ coords->y + snap_offset_y,
+ &tx,
+ &ty,
+ FUNSCALEX (shell, snap_distance),
+ FUNSCALEY (shell, snap_distance),
+ snap_to_guides,
+ snap_to_grid,
+ snap_to_canvas,
+ snap_to_vectors,
+ shell->show_all);
+ }
+
+ if (snapped)
+ {
+ coords->x = tx - snap_offset_x;
+ coords->y = ty - snap_offset_y;
+ }
+ }
+
+ return snapped;
+}
+
+gboolean
+gimp_display_shell_mask_bounds (GimpDisplayShell *shell,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height)
+{
+ GimpImage *image;
+ GimpLayer *layer;
+ gint x1, y1;
+ gint x2, y2;
+ gdouble x1_f, y1_f;
+ gdouble x2_f, y2_f;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), FALSE);
+ g_return_val_if_fail (x != NULL, FALSE);
+ g_return_val_if_fail (y != NULL, FALSE);
+ g_return_val_if_fail (width != NULL, FALSE);
+ g_return_val_if_fail (height != NULL, FALSE);
+
+ image = gimp_display_get_image (shell->display);
+
+ /* If there is a floating selection, handle things differently */
+ if ((layer = gimp_image_get_floating_selection (image)))
+ {
+ gint fs_x;
+ gint fs_y;
+ gint fs_width;
+ gint fs_height;
+
+ gimp_item_get_offset (GIMP_ITEM (layer), &fs_x, &fs_y);
+ fs_width = gimp_item_get_width (GIMP_ITEM (layer));
+ fs_height = gimp_item_get_height (GIMP_ITEM (layer));
+
+ if (! gimp_item_bounds (GIMP_ITEM (gimp_image_get_mask (image)),
+ x, y, width, height))
+ {
+ *x = fs_x;
+ *y = fs_y;
+ *width = fs_width;
+ *height = fs_height;
+ }
+ else
+ {
+ gimp_rectangle_union (*x, *y, *width, *height,
+ fs_x, fs_y, fs_width, fs_height,
+ x, y, width, height);
+ }
+ }
+ else if (! gimp_item_bounds (GIMP_ITEM (gimp_image_get_mask (image)),
+ x, y, width, height))
+ {
+ return FALSE;
+ }
+
+ x1 = *x;
+ y1 = *y;
+ x2 = *x + *width;
+ y2 = *y + *height;
+
+ gimp_display_shell_transform_bounds (shell,
+ x1, y1, x2, y2,
+ &x1_f, &y1_f, &x2_f, &y2_f);
+
+ /* Make sure the extents are within bounds */
+ x1 = CLAMP (floor (x1_f), 0, shell->disp_width);
+ y1 = CLAMP (floor (y1_f), 0, shell->disp_height);
+ x2 = CLAMP (ceil (x2_f), 0, shell->disp_width);
+ y2 = CLAMP (ceil (y2_f), 0, shell->disp_height);
+
+ *x = x1;
+ *y = y1;
+ *width = x2 - x1;
+ *height = y2 - y1;
+
+ return (*width > 0) && (*height > 0);
+}
+
+void
+gimp_display_shell_set_show_image (GimpDisplayShell *shell,
+ gboolean show_image)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (show_image != shell->show_image)
+ {
+ shell->show_image = show_image;
+
+ gimp_display_shell_expose_full (shell);
+ }
+}
+
+void
+gimp_display_shell_set_show_all (GimpDisplayShell *shell,
+ gboolean show_all)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (show_all != shell->show_all)
+ {
+ shell->show_all = show_all;
+
+ if (shell->display && gimp_display_get_image (shell->display))
+ {
+ GimpImage *image = gimp_display_get_image (shell->display);
+ GimpContext *user_context;
+
+ if (show_all)
+ gimp_image_inc_show_all_count (image);
+ else
+ gimp_image_dec_show_all_count (image);
+
+ gimp_image_flush (image);
+
+ gimp_display_update_bounding_box (shell->display);
+
+ gimp_display_shell_update_show_canvas (shell);
+
+ gimp_display_shell_scroll_clamp_and_update (shell);
+ gimp_display_shell_scrollbars_update (shell);
+
+ gimp_display_shell_expose_full (shell);
+
+ user_context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (user_context))
+ {
+ gimp_display_shell_update_priority_rect (shell);
+
+ gimp_ui_manager_update (shell->popup_manager, shell->display);
+ }
+ }
+
+ g_object_notify (G_OBJECT (shell), "show-all");
+ g_object_notify (G_OBJECT (shell), "infinite-canvas");
+ }
+}
+
+
+GimpPickable *
+gimp_display_shell_get_pickable (GimpDisplayShell *shell)
+{
+ GimpImage *image;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ image = gimp_display_get_image (shell->display);
+
+ if (image)
+ {
+ if (! shell->show_all)
+ return GIMP_PICKABLE (image);
+ else
+ return GIMP_PICKABLE (gimp_image_get_projection (image));
+ }
+
+ return NULL;
+}
+
+GimpPickable *
+gimp_display_shell_get_canvas_pickable (GimpDisplayShell *shell)
+{
+ GimpImage *image;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ image = gimp_display_get_image (shell->display);
+
+ if (image)
+ {
+ if (! gimp_display_shell_get_infinite_canvas (shell))
+ return GIMP_PICKABLE (image);
+ else
+ return GIMP_PICKABLE (gimp_image_get_projection (image));
+ }
+
+ return NULL;
+}
+
+GeglRectangle
+gimp_display_shell_get_bounding_box (GimpDisplayShell *shell)
+{
+ GeglRectangle bounding_box = {};
+ GimpImage *image;
+
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), bounding_box);
+
+ image = gimp_display_get_image (shell->display);
+
+ if (image)
+ {
+ if (! shell->show_all)
+ {
+ bounding_box.width = gimp_image_get_width (image);
+ bounding_box.height = gimp_image_get_height (image);
+ }
+ else
+ {
+ bounding_box = gimp_projectable_get_bounding_box (
+ GIMP_PROJECTABLE (image));
+ }
+ }
+
+ return bounding_box;
+}
+
+gboolean
+gimp_display_shell_get_infinite_canvas (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), FALSE);
+
+ return shell->show_all &&
+ ! gimp_display_shell_get_padding_in_show_all (shell);
+}
+
+void
+gimp_display_shell_update_priority_rect (GimpDisplayShell *shell)
+{
+ GimpImage *image;
+
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ image = gimp_display_get_image (shell->display);
+
+ if (image)
+ {
+ GimpProjection *projection = gimp_image_get_projection (image);
+ gint x, y;
+ gint width, height;
+
+ gimp_display_shell_untransform_viewport (shell, ! shell->show_all,
+ &x, &y, &width, &height);
+ gimp_projection_set_priority_rect (projection, x, y, width, height);
+ }
+}
+
+void
+gimp_display_shell_flush (GimpDisplayShell *shell,
+ gboolean now)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (now)
+ {
+ gdk_window_process_updates (gtk_widget_get_window (shell->canvas),
+ FALSE);
+ }
+ else
+ {
+ GimpImageWindow *window = gimp_display_shell_get_window (shell);
+ GimpContext *context;
+
+ gimp_display_shell_title_update (shell);
+
+ gimp_canvas_layer_boundary_set_layer (GIMP_CANVAS_LAYER_BOUNDARY (shell->layer_boundary),
+ gimp_image_get_active_layer (gimp_display_get_image (shell->display)));
+
+ gimp_canvas_canvas_boundary_set_image (GIMP_CANVAS_CANVAS_BOUNDARY (shell->canvas_boundary),
+ gimp_display_get_image (shell->display));
+
+ if (window && gimp_image_window_get_active_shell (window) == shell)
+ {
+ GimpUIManager *manager = gimp_image_window_get_ui_manager (window);
+
+ gimp_ui_manager_update (manager, shell->display);
+ }
+
+ context = gimp_get_user_context (shell->display->gimp);
+
+ if (shell->display == gimp_context_get_display (context))
+ {
+ gimp_ui_manager_update (shell->popup_manager, shell->display);
+ }
+ }
+}
+
+/**
+ * gimp_display_shell_pause:
+ * @shell: a display shell
+ *
+ * This function increments the pause count or the display shell.
+ * If it was zero coming in, then the function pauses the active tool,
+ * so that operations on the display can take place without corrupting
+ * anything that the tool has drawn. It "undraws" the current tool
+ * drawing, and must be followed by gimp_display_shell_resume() after
+ * the operation in question is completed.
+ **/
+void
+gimp_display_shell_pause (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ shell->paused_count++;
+
+ if (shell->paused_count == 1)
+ {
+ /* pause the currently active tool */
+ tool_manager_control_active (shell->display->gimp,
+ GIMP_TOOL_ACTION_PAUSE,
+ shell->display);
+ }
+}
+
+/**
+ * gimp_display_shell_resume:
+ * @shell: a display shell
+ *
+ * This function decrements the pause count for the display shell.
+ * If this brings it to zero, then the current tool is resumed.
+ * It is an error to call this function without having previously
+ * called gimp_display_shell_pause().
+ **/
+void
+gimp_display_shell_resume (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (shell->paused_count > 0);
+
+ shell->paused_count--;
+
+ if (shell->paused_count == 0)
+ {
+ /* start the currently active tool */
+ tool_manager_control_active (shell->display->gimp,
+ GIMP_TOOL_ACTION_RESUME,
+ shell->display);
+ }
+}
+
+/**
+ * gimp_display_shell_set_highlight:
+ * @shell: a #GimpDisplayShell
+ * @highlight: a rectangle in image coordinates that should be brought out
+ * @opacity: how much to hide the unselected area
+ *
+ * This function sets an area of the image that should be
+ * accentuated. The actual implementation is to dim all pixels outside
+ * this rectangle. Passing %NULL for @highlight unsets the rectangle.
+ **/
+void
+gimp_display_shell_set_highlight (GimpDisplayShell *shell,
+ const GdkRectangle *highlight,
+ gdouble opacity)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (highlight)
+ {
+ gimp_canvas_item_begin_change (shell->passe_partout);
+
+ gimp_canvas_rectangle_set (shell->passe_partout,
+ highlight->x,
+ highlight->y,
+ highlight->width,
+ highlight->height);
+ g_object_set (shell->passe_partout, "opacity", opacity, NULL);
+
+ gimp_canvas_item_set_visible (shell->passe_partout, TRUE);
+
+ gimp_canvas_item_end_change (shell->passe_partout);
+ }
+ else
+ {
+ gimp_canvas_item_set_visible (shell->passe_partout, FALSE);
+ }
+}
+
+/**
+ * gimp_display_shell_set_mask:
+ * @shell: a #GimpDisplayShell
+ * @mask: a #GimpDrawable (1 byte per pixel)
+ * @color: the color to use for drawing the mask
+ * @inverted: #TRUE if the mask should be drawn inverted
+ *
+ * Previews a mask originating at offset_x, offset_x. Depending on
+ * @inverted, pixels that are selected or not selected are tinted with
+ * the given color.
+ **/
+void
+gimp_display_shell_set_mask (GimpDisplayShell *shell,
+ GeglBuffer *mask,
+ gint offset_x,
+ gint offset_y,
+ const GimpRGB *color,
+ gboolean inverted)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+ g_return_if_fail (mask == NULL || GEGL_IS_BUFFER (mask));
+ g_return_if_fail (mask == NULL || color != NULL);
+
+ if (mask)
+ g_object_ref (mask);
+
+ if (shell->mask)
+ g_object_unref (shell->mask);
+
+ shell->mask = mask;
+
+ shell->mask_offset_x = offset_x;
+ shell->mask_offset_y = offset_y;
+
+ if (mask)
+ shell->mask_color = *color;
+
+ shell->mask_inverted = inverted;
+
+ gimp_display_shell_expose_full (shell);
+}