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gimp/app/display/gimpdisplayshell.c

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/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.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 "core/gimp.h"
#include "core/gimpchannel.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-sample-points.h"
#include "core/gimpimage-snap.h"
#include "core/gimpmarshal.h"
#include "widgets/gimprender.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpmenufactory.h"
#include "widgets/gimpuimanager.h"
#include "widgets/gimpwidgets-utils.h"
#include "tools/tool_manager.h"
#include "gimpcanvas.h"
#include "gimpdisplay.h"
#include "gimpdisplayoptions.h"
#include "gimpdisplayshell.h"
#include "gimpdisplayshell-appearance.h"
#include "gimpdisplayshell-callbacks.h"
#include "gimpdisplayshell-close.h"
#include "gimpdisplayshell-cursor.h"
#include "gimpdisplayshell-dnd.h"
#include "gimpdisplayshell-draw.h"
#include "gimpdisplayshell-filter.h"
#include "gimpdisplayshell-handlers.h"
#include "gimpdisplayshell-scale.h"
#include "gimpdisplayshell-selection.h"
#include "gimpdisplayshell-title.h"
#include "gimpdisplayshell-transform.h"
#include "gimpstatusbar.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_UNIT
};
enum
{
SCALED,
SCROLLED,
RECONNECT,
LAST_SIGNAL
};
/* local function prototypes */
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_destroy (GtkObject *object);
static void gimp_display_shell_unrealize (GtkWidget *widget);
static void gimp_display_shell_screen_changed (GtkWidget *widget,
GdkScreen *previous);
static gboolean gimp_display_shell_delete_event (GtkWidget *widget,
GdkEventAny *aevent);
static gboolean gimp_display_shell_popup_menu (GtkWidget *widget);
static void gimp_display_shell_real_scaled (GimpDisplayShell *shell);
static void gimp_display_shell_menu_position (GtkMenu *menu,
gint *x,
gint *y,
gpointer data);
static void gimp_display_shell_show_tooltip (GimpUIManager *manager,
const gchar *tooltip,
GimpDisplayShell *shell);
static void gimp_display_shell_hide_tooltip (GimpUIManager *manager,
GimpDisplayShell *shell);
G_DEFINE_TYPE (GimpDisplayShell, gimp_display_shell, GTK_TYPE_WINDOW);
#define parent_class gimp_display_shell_parent_class
static guint display_shell_signals[LAST_SIGNAL] = { 0 };
static const gchar *display_rc_style =
"style \"fullscreen-menubar-style\"\n"
"{\n"
" GtkMenuBar::shadow-type = none\n"
" GtkMenuBar::internal-padding = 0\n"
"}\n"
"widget \"*.gimp-menubar-fullscreen\" style \"fullscreen-menubar-style\"";
static void
gimp_display_shell_class_init (GimpDisplayShellClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkObjectClass *gtk_object_class = GTK_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[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->finalize = gimp_display_shell_finalize;
object_class->set_property = gimp_display_shell_set_property;
object_class->get_property = gimp_display_shell_get_property;
gtk_object_class->destroy = gimp_display_shell_destroy;
widget_class->unrealize = gimp_display_shell_unrealize;
widget_class->screen_changed = gimp_display_shell_screen_changed;
widget_class->delete_event = gimp_display_shell_delete_event;
widget_class->popup_menu = gimp_display_shell_popup_menu;
klass->scaled = gimp_display_shell_real_scaled;
klass->scrolled = NULL;
klass->reconnect = NULL;
g_object_class_install_property (object_class, PROP_UNIT,
gimp_param_spec_unit ("unit", NULL, NULL,
TRUE, FALSE,
GIMP_UNIT_PIXEL,
GIMP_PARAM_READWRITE));
gtk_rc_parse_string (display_rc_style);
}
static void
gimp_display_shell_init (GimpDisplayShell *shell)
{
shell->display = NULL;
shell->menubar_manager = NULL;
shell->popup_manager = NULL;
shell->unit = GIMP_UNIT_PIXEL;
shell->zoom = gimp_zoom_model_new ();
shell->other_scale = 0.0;
shell->dot_for_dot = TRUE;
shell->offset_x = 0;
shell->offset_y = 0;
shell->disp_width = 0;
shell->disp_height = 0;
shell->disp_xoffset = 0;
shell->disp_yoffset = 0;
shell->proximity = FALSE;
shell->snap_to_guides = TRUE;
shell->snap_to_grid = FALSE;
shell->snap_to_canvas = FALSE;
shell->snap_to_vectors = FALSE;
shell->select = NULL;
shell->canvas = NULL;
shell->grid_gc = NULL;
shell->pen_gc = NULL;
shell->hsbdata = NULL;
shell->vsbdata = NULL;
shell->hsb = NULL;
shell->vsb = NULL;
shell->hrule = NULL;
shell->vrule = NULL;
shell->origin_button = NULL;
shell->quick_mask_button = NULL;
shell->zoom_button = NULL;
shell->nav_ebox = NULL;
shell->menubar = NULL;
shell->statusbar = NULL;
shell->render_buf = g_new (guchar,
GIMP_RENDER_BUF_WIDTH *
GIMP_RENDER_BUF_HEIGHT * 3);
shell->title_idle_id = 0;
shell->icon_size = 32;
shell->icon_idle_id = 0;
shell->cursor_format = GIMP_CURSOR_FORMAT_BITMAP;
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->using_override_cursor = FALSE;
shell->draw_cursor = FALSE;
shell->have_cursor = FALSE;
shell->cursor_x = 0;
shell->cursor_y = 0;
shell->close_dialog = NULL;
shell->scale_dialog = NULL;
shell->nav_popup = NULL;
shell->grid_dialog = NULL;
shell->filter_stack = NULL;
shell->filter_idle_id = 0;
shell->filters_dialog = NULL;
shell->paused_count = 0;
shell->window_state = 0;
shell->zoom_on_resize = FALSE;
shell->show_transform_preview = FALSE;
shell->options = g_object_new (GIMP_TYPE_DISPLAY_OPTIONS, NULL);
shell->fullscreen_options = g_object_new (GIMP_TYPE_DISPLAY_OPTIONS_FULLSCREEN, NULL);
shell->space_pressed = FALSE;
shell->space_release_pending = FALSE;
shell->scrolling = FALSE;
shell->scroll_start_x = 0;
shell->scroll_start_y = 0;
shell->button_press_before_focus = FALSE;
shell->highlight = NULL;
shell->mask = NULL;
gtk_window_set_role (GTK_WINDOW (shell), "gimp-image-window");
gtk_window_set_resizable (GTK_WINDOW (shell), TRUE);
gtk_widget_set_events (GTK_WIDGET (shell), (GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
GDK_FOCUS_CHANGE_MASK |
GDK_SCROLL_MASK));
/* 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);
g_signal_connect (shell, "window-state-event",
G_CALLBACK (gimp_display_shell_events),
shell);
gimp_display_shell_dnd_init (shell);
gimp_help_connect (GTK_WIDGET (shell), gimp_standard_help_func,
GIMP_HELP_IMAGE_WINDOW, NULL);
}
static void
gimp_display_shell_finalize (GObject *object)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
g_object_unref (shell->zoom);
if (shell->options)
g_object_unref (shell->options);
if (shell->fullscreen_options)
g_object_unref (shell->fullscreen_options);
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_UNIT:
gimp_display_shell_set_unit (shell, g_value_get_int (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_UNIT:
g_value_set_int (value, shell->unit);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_display_shell_destroy (GtkObject *object)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (object);
if (shell->display)
gimp_display_shell_disconnect (shell);
if (shell->menubar_manager)
{
g_object_unref (shell->menubar_manager);
shell->menubar_manager = NULL;
}
shell->popup_manager = NULL;
if (shell->select)
{
gimp_display_shell_selection_free (shell->select);
shell->select = NULL;
}
if (shell->filter_stack)
gimp_display_shell_filter_set (shell, NULL);
if (shell->filter_idle_id)
{
g_source_remove (shell->filter_idle_id);
shell->filter_idle_id = 0;
}
if (shell->render_buf)
{
g_free (shell->render_buf);
shell->render_buf = NULL;
}
if (shell->highlight)
{
g_free (shell->highlight);
shell->highlight = NULL;
}
if (shell->mask)
{
g_object_unref (shell->mask);
shell->mask = NULL;
}
if (shell->title_idle_id)
{
g_source_remove (shell->title_idle_id);
shell->title_idle_id = 0;
}
if (shell->nav_popup)
{
gtk_widget_destroy (shell->nav_popup);
shell->nav_popup = NULL;
}
if (shell->grid_dialog)
{
gtk_widget_destroy (shell->grid_dialog);
shell->grid_dialog = NULL;
}
shell->display = NULL;
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_display_shell_unrealize (GtkWidget *widget)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
if (shell->grid_gc)
{
g_object_unref (shell->grid_gc);
shell->grid_gc = NULL;
}
if (shell->pen_gc)
{
g_object_unref (shell->pen_gc);
shell->pen_gc = NULL;
}
if (shell->nav_popup)
gtk_widget_unrealize (shell->nav_popup);
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
}
static void
gimp_display_shell_screen_changed (GtkWidget *widget,
GdkScreen *previous)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
GimpDisplayConfig *config;
if (GTK_WIDGET_CLASS (parent_class)->screen_changed)
GTK_WIDGET_CLASS (parent_class)->screen_changed (widget, previous);
config = GIMP_DISPLAY_CONFIG (shell->display->image->gimp->config);
if (GIMP_DISPLAY_CONFIG (config)->monitor_res_from_gdk)
{
gimp_get_screen_resolution (gtk_widget_get_screen (widget),
&shell->monitor_xres,
&shell->monitor_yres);
}
else
{
shell->monitor_xres = GIMP_DISPLAY_CONFIG (config)->monitor_xres;
shell->monitor_yres = GIMP_DISPLAY_CONFIG (config)->monitor_yres;
}
}
static gboolean
gimp_display_shell_delete_event (GtkWidget *widget,
GdkEventAny *aevent)
{
GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (widget);
gimp_display_shell_close (shell, FALSE);
return TRUE;
}
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->image->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_button,
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);
/* update the <Image>/View/Zoom menu */
gimp_ui_manager_update (shell->menubar_manager, shell->display);
user_context = gimp_get_user_context (shell->display->image->gimp);
if (shell->display == gimp_context_get_display (user_context))
gimp_ui_manager_update (shell->popup_manager, shell->display);
}
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_show_tooltip (GimpUIManager *manager,
const gchar *tooltip,
GimpDisplayShell *shell)
{
gimp_statusbar_push (GIMP_STATUSBAR (shell->statusbar), "menu-tooltip",
tooltip);
}
static void
gimp_display_shell_hide_tooltip (GimpUIManager *manager,
GimpDisplayShell *shell)
{
gimp_statusbar_pop (GIMP_STATUSBAR (shell->statusbar), "menu-tooltip");
}
/* public functions */
GtkWidget *
gimp_display_shell_new (GimpDisplay *display,
GimpUnit unit,
gdouble scale,
GimpMenuFactory *menu_factory,
GimpUIManager *popup_manager)
{
GimpDisplayShell *shell;
GimpDisplayConfig *display_config;
GimpColorConfig *color_config;
GtkWidget *main_vbox;
GtkWidget *disp_vbox;
GtkWidget *upper_hbox;
GtkWidget *right_vbox;
GtkWidget *lower_hbox;
GtkWidget *inner_table;
GtkWidget *image;
GdkScreen *screen;
GtkAction *action;
gint image_width, image_height;
gint n_width, n_height;
gint s_width, s_height;
gdouble new_scale;
g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
g_return_val_if_fail (GIMP_IS_UI_MANAGER (popup_manager), NULL);
/* the toplevel shell */
shell = g_object_new (GIMP_TYPE_DISPLAY_SHELL,
/* "gravity", GDK_GRAVITY_CENTER, */
"unit", unit,
NULL);
gimp_zoom_model_zoom (shell->zoom, GIMP_ZOOM_TO, scale);
shell->display = display;
image_width = display->image->width;
image_height = display->image->height;
display_config = GIMP_DISPLAY_CONFIG (display->image->gimp->config);
shell->dot_for_dot = display_config->default_dot_for_dot;
gimp_config_sync (G_OBJECT (display_config->default_view),
G_OBJECT (shell->options), 0);
gimp_config_sync (G_OBJECT (display_config->default_fullscreen_view),
G_OBJECT (shell->fullscreen_options), 0);
/* adjust the initial scale -- so that window fits on screen the 75%
* value is the same as in gimp_display_shell_shrink_wrap. It
* probably should be a user-configurable option.
*/
screen = gtk_widget_get_screen (GTK_WIDGET (shell));
if (display_config->monitor_res_from_gdk)
{
gimp_get_screen_resolution (screen,
&shell->monitor_xres, &shell->monitor_yres);
}
else
{
shell->monitor_xres = display_config->monitor_xres;
shell->monitor_yres = display_config->monitor_yres;
}
s_width = gdk_screen_get_width (screen) * 0.75;
s_height = gdk_screen_get_height (screen) * 0.75;
n_width = SCALEX (shell, image_width);
n_height = SCALEY (shell, image_height);
if (display_config->initial_zoom_to_fit)
{
/* Limit to the size of the screen... */
if (n_width > s_width || n_height > s_height)
{
gdouble current = gimp_zoom_model_get_factor (shell->zoom);
new_scale = current * MIN (((gdouble) s_height) / n_height,
((gdouble) s_width) / n_width);
new_scale = gimp_zoom_model_zoom_step (GIMP_ZOOM_OUT, new_scale);
/* Since zooming out might skip a zoom step we zoom in again
* and test if we are small enough.
*/
gimp_zoom_model_zoom (shell->zoom, GIMP_ZOOM_TO,
gimp_zoom_model_zoom_step (GIMP_ZOOM_IN,
new_scale));
if (SCALEX (shell, image_width) > s_width ||
SCALEY (shell, image_height) > s_height)
gimp_zoom_model_zoom (shell->zoom, GIMP_ZOOM_TO, new_scale);
n_width = SCALEX (shell, image_width);
n_height = SCALEY (shell, image_height);
}
}
else
{
/* Set up size like above, but do not zoom to fit.
Useful when working on large images. */
if (n_width > s_width)
n_width = s_width;
if (n_height > s_height)
n_height = s_height;
}
shell->menubar_manager = gimp_menu_factory_manager_new (menu_factory,
"<Image>",
display,
FALSE);
shell->popup_manager = popup_manager;
gtk_window_add_accel_group (GTK_WINDOW (shell),
gtk_ui_manager_get_accel_group (GTK_UI_MANAGER (shell->menubar_manager)));
g_signal_connect (shell->menubar_manager, "show-tooltip",
G_CALLBACK (gimp_display_shell_show_tooltip),
shell);
g_signal_connect (shell->menubar_manager, "hide-tooltip",
G_CALLBACK (gimp_display_shell_hide_tooltip),
shell);
/* 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:
*
* main_vbox
* |
* +-- menubar
* |
* +-- disp_vbox
* | |
* | +-- upper_hbox
* | | |
* | | +-- inner_table
* | | | |
* | | | +-- origin
* | | | +-- hruler
* | | | +-- vruler
* | | | +-- canvas
* | | |
* | | +-- right_vbox
* | | |
* | | +-- zoom_on_resize_button
* | | +-- vscrollbar
* | |
* | +-- lower_hbox
* | |
* | +-- quick_mask
* | +-- hscrollbar
* | +-- navbutton
* |
* +-- statusbar
*/
/* first, set up the container hierarchy *********************************/
/* the vbox containing all widgets */
main_vbox = gtk_vbox_new (FALSE, 1);
gtk_container_add (GTK_CONTAINER (shell), main_vbox);
shell->menubar =
gtk_ui_manager_get_widget (GTK_UI_MANAGER (shell->menubar_manager),
"/image-menubar");
if (shell->menubar)
{
gtk_box_pack_start (GTK_BOX (main_vbox), shell->menubar, FALSE, FALSE, 0);
if (shell->options->show_menubar)
gtk_widget_show (shell->menubar);
else
gtk_widget_hide (shell->menubar);
/* make sure we can activate accels even if the menubar is invisible
* (see http://bugzilla.gnome.org/show_bug.cgi?id=137151)
*/
g_signal_connect (shell->menubar, "can-activate-accel",
G_CALLBACK (gtk_true),
NULL);
/* active display callback */
g_signal_connect (shell->menubar, "button-press-event",
G_CALLBACK (gimp_display_shell_events),
shell);
g_signal_connect (shell->menubar, "button-release-event",
G_CALLBACK (gimp_display_shell_events),
shell);
g_signal_connect (shell->menubar, "key-press-event",
G_CALLBACK (gimp_display_shell_events),
shell);
}
/* another vbox for everything except the statusbar */
disp_vbox = gtk_vbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (main_vbox), disp_vbox, TRUE, TRUE, 0);
gtk_widget_show (disp_vbox);
/* a hbox for the inner_table and the vertical scrollbar */
upper_hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (disp_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, 1);
gtk_table_set_row_spacing (GTK_TABLE (inner_table), 0, 1);
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_vbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (upper_hbox), right_vbox, FALSE, FALSE, 0);
gtk_widget_show (right_vbox);
/* the hbox containing quickmask button, vertical scrollbar and nav button */
lower_hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (disp_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_hscrollbar_new (shell->hsbdata);
GTK_WIDGET_UNSET_FLAGS (shell->hsb, GTK_CAN_FOCUS);
/* the vertical scrollbar */
shell->vsbdata =
GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, image_height, 1, 1, image_height));
shell->vsb = gtk_vscrollbar_new (shell->vsbdata);
GTK_WIDGET_UNSET_FLAGS (shell->vsb, GTK_CAN_FOCUS);
/* create the contents of the inner_table ********************************/
/* the menu popup button */
shell->origin_button = gtk_button_new ();
GTK_WIDGET_UNSET_FLAGS (shell->origin_button, GTK_CAN_FOCUS);
image = gtk_image_new_from_stock (GIMP_STOCK_MENU_RIGHT, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (shell->origin_button), image);
gtk_widget_show (image);
g_signal_connect (shell->origin_button, "button-press-event",
G_CALLBACK (gimp_display_shell_origin_button_press),
shell);
gimp_help_set_help_data (shell->origin_button, NULL,
GIMP_HELP_IMAGE_WINDOW_ORIGIN_BUTTON);
shell->canvas = gimp_canvas_new ();
shell->select = gimp_display_shell_selection_new (shell);
/* the horizontal ruler */
shell->hrule = gtk_hruler_new ();
gtk_widget_set_events (GTK_WIDGET (shell->hrule),
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
g_signal_connect_swapped (shell->canvas, "motion-notify-event",
G_CALLBACK (GTK_WIDGET_GET_CLASS (shell->hrule)->motion_notify_event),
shell->hrule);
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 = gtk_vruler_new ();
gtk_widget_set_events (GTK_WIDGET (shell->vrule),
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
g_signal_connect_swapped (shell->canvas, "motion-notify-event",
G_CALLBACK (GTK_WIDGET_GET_CLASS (shell->vrule)->motion_notify_event),
shell->vrule);
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);
/* Workaround for GTK+ Wintab bug on Windows when creating guides by
* dragging from the rulers. See bug #168516.
*/
gtk_widget_set_extension_events (shell->hrule, GDK_EXTENSION_EVENTS_ALL);
gtk_widget_set_extension_events (shell->vrule, GDK_EXTENSION_EVENTS_ALL);
/* the canvas */
gtk_widget_set_size_request (shell->canvas, n_width, n_height);
gtk_widget_set_events (shell->canvas, GIMP_DISPLAY_SHELL_CANVAS_EVENT_MASK);
gtk_widget_set_extension_events (shell->canvas, GDK_EXTENSION_EVENTS_ALL);
GTK_WIDGET_SET_FLAGS (shell->canvas, GTK_CAN_FOCUS);
g_signal_connect (shell->canvas, "realize",
G_CALLBACK (gimp_display_shell_canvas_realize),
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 = gtk_check_button_new ();
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (shell->zoom_button), FALSE);
gtk_widget_set_size_request (GTK_WIDGET (shell->zoom_button), 16, 16);
GTK_WIDGET_UNSET_FLAGS (shell->zoom_button, GTK_CAN_FOCUS);
image = gtk_image_new_from_stock (GIMP_STOCK_ZOOM_FOLLOW_WINDOW,
GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (shell->zoom_button), image);
gtk_widget_show (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 (shell->zoom_button, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&shell->zoom_on_resize);
/* create the contents of the lower_hbox *********************************/
/* the quick mask button */
shell->quick_mask_button = gtk_check_button_new ();
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (shell->quick_mask_button),
FALSE);
gtk_widget_set_size_request (GTK_WIDGET (shell->quick_mask_button), 16, 16);
GTK_WIDGET_UNSET_FLAGS (shell->quick_mask_button, GTK_CAN_FOCUS);
image = gtk_image_new_from_stock (GIMP_STOCK_QUICK_MASK_OFF,
GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (shell->quick_mask_button), image);
gtk_widget_show (image);
action = gimp_ui_manager_find_action (shell->menubar_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 ();
image = gtk_image_new_from_stock (GIMP_STOCK_NAVIGATION, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (shell->nav_ebox), image);
gtk_widget_show (image);
g_signal_connect (shell->nav_ebox, "button-press-event",
G_CALLBACK (gimp_display_shell_nav_button_press),
shell);
gimp_help_set_help_data (shell->nav_ebox, NULL,
GIMP_HELP_IMAGE_WINDOW_NAV_BUTTON);
/* create the contents of the status area *********************************/
/* the statusbar */
shell->statusbar = gimp_statusbar_new (shell);
gimp_help_set_help_data (shell->statusbar, NULL,
GIMP_HELP_IMAGE_WINDOW_STATUS_BAR);
/* pack all the widgets **************************************************/
/* fill the inner_table */
gtk_table_attach (GTK_TABLE (inner_table), shell->origin_button, 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);
gtk_box_pack_end (GTK_BOX (main_vbox), shell->statusbar, FALSE, FALSE, 0);
/* show everything *******************************************************/
if (shell->options->show_rulers)
{
gtk_widget_show (shell->origin_button);
gtk_widget_show (shell->hrule);
gtk_widget_show (shell->vrule);
}
gtk_widget_show (GTK_WIDGET (shell->canvas));
if (shell->options->show_scrollbars)
{
gtk_widget_show (shell->vsb);
gtk_widget_show (shell->hsb);
gtk_widget_show (shell->zoom_button);
gtk_widget_show (shell->quick_mask_button);
gtk_widget_show (shell->nav_ebox);
}
if (shell->options->show_statusbar)
gtk_widget_show (shell->statusbar);
gtk_widget_show (main_vbox);
color_config = display->image->gimp->config->color_management;
gimp_display_shell_filter_set (shell,
gimp_display_shell_filter_new (color_config));
gimp_display_shell_connect (shell);
gimp_display_shell_title_init (shell);
return GTK_WIDGET (shell);
}
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_IS_IMAGE (shell->display->image));
gimp_display_shell_connect (shell);
g_signal_emit (shell, display_shell_signals[RECONNECT], 0);
gimp_display_shell_scale_setup (shell);
gimp_display_shell_expose_full (shell);
gimp_display_shell_scaled (shell);
}
void
gimp_display_shell_scaled (GimpDisplayShell *shell)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_signal_emit (shell, display_shell_signals[SCALED], 0);
}
void
gimp_display_shell_scrolled (GimpDisplayShell *shell)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_signal_emit (shell, display_shell_signals[SCROLLED], 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_scale_setup (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,
GimpCoords *snapped_coords,
gint snap_offset_x,
gint snap_offset_y,
gint snap_width,
gint snap_height)
{
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);
g_return_val_if_fail (snapped_coords != NULL, FALSE);
*snapped_coords = *coords;
if (gimp_display_shell_get_snap_to_guides (shell) &&
shell->display->image->guides)
{
snap_to_guides = TRUE;
}
if (gimp_display_shell_get_snap_to_grid (shell) &&
shell->display->image->grid)
{
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 (shell->display->image))
{
snap_to_vectors = TRUE;
}
if (snap_to_guides || snap_to_grid || snap_to_canvas || snap_to_vectors)
{
gdouble tx, ty;
gint snap_distance;
snap_distance =
GIMP_DISPLAY_CONFIG (shell->display->image->gimp->config)->snap_distance;
if (snap_width > 0 && snap_height > 0)
{
snapped = gimp_image_snap_rectangle (shell->display->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 (shell->display->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);
}
if (snapped)
{
snapped_coords->x = tx - snap_offset_x;
snapped_coords->y = ty - snap_offset_y;
}
}
return snapped;
}
gboolean
gimp_display_shell_mask_bounds (GimpDisplayShell *shell,
gint *x1,
gint *y1,
gint *x2,
gint *y2)
{
GimpLayer *layer;
g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), FALSE);
g_return_val_if_fail (x1 != NULL, FALSE);
g_return_val_if_fail (y1 != NULL, FALSE);
g_return_val_if_fail (x2 != NULL, FALSE);
g_return_val_if_fail (y2 != NULL, FALSE);
/* If there is a floating selection, handle things differently */
if ((layer = gimp_image_floating_sel (shell->display->image)))
{
gint off_x;
gint off_y;
gimp_item_offsets (GIMP_ITEM (layer), &off_x, &off_y);
if (! gimp_channel_bounds (gimp_image_get_mask (shell->display->image),
x1, y1, x2, y2))
{
*x1 = off_x;
*y1 = off_y;
*x2 = off_x + gimp_item_width (GIMP_ITEM (layer));
*y2 = off_y + gimp_item_height (GIMP_ITEM (layer));
}
else
{
*x1 = MIN (off_x, *x1);
*y1 = MIN (off_y, *y1);
*x2 = MAX (off_x + gimp_item_width (GIMP_ITEM (layer)), *x2);
*y2 = MAX (off_y + gimp_item_height (GIMP_ITEM (layer)), *y2);
}
}
else if (! gimp_channel_bounds (gimp_image_get_mask (shell->display->image),
x1, y1, x2, y2))
{
return FALSE;
}
gimp_display_shell_transform_xy (shell, *x1, *y1, x1, y1, FALSE);
gimp_display_shell_transform_xy (shell, *x2, *y2, x2, y2, FALSE);
/* Make sure the extents are within bounds */
*x1 = CLAMP (*x1, 0, shell->disp_width);
*y1 = CLAMP (*y1, 0, shell->disp_height);
*x2 = CLAMP (*x2, 0, shell->disp_width);
*y2 = CLAMP (*y2, 0, shell->disp_height);
return ((*x2 - *x1) > 0) && ((*y2 - *y1) > 0);
}
void
gimp_display_shell_expose_area (GimpDisplayShell *shell,
gint x,
gint y,
gint w,
gint h)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gtk_widget_queue_draw_area (shell->canvas, x, y, w, h);
}
void
gimp_display_shell_expose_guide (GimpDisplayShell *shell,
GimpGuide *guide)
{
gint x;
gint y;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (guide != NULL);
if (guide->position < 0)
return;
gimp_display_shell_transform_xy (shell,
guide->position,
guide->position,
&x, &y,
FALSE);
switch (guide->orientation)
{
case GIMP_ORIENTATION_HORIZONTAL:
gimp_display_shell_expose_area (shell, 0, y, shell->disp_width, 1);
break;
case GIMP_ORIENTATION_VERTICAL:
gimp_display_shell_expose_area (shell, x, 0, 1, shell->disp_height);
break;
default:
break;
}
}
void
gimp_display_shell_expose_sample_point (GimpDisplayShell *shell,
GimpSamplePoint *sample_point)
{
gdouble x, y;
gint x1, y1, x2, y2;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (sample_point != NULL);
if (sample_point->x < 0)
return;
gimp_display_shell_transform_xy_f (shell,
sample_point->x + 0.5,
sample_point->y + 0.5,
&x, &y,
FALSE);
x1 = MAX (0, floor (x - GIMP_SAMPLE_POINT_DRAW_SIZE));
y1 = MAX (0, floor (y - GIMP_SAMPLE_POINT_DRAW_SIZE));
x2 = MIN (shell->disp_width, ceil (x + GIMP_SAMPLE_POINT_DRAW_SIZE));
y2 = MIN (shell->disp_height, ceil (y + GIMP_SAMPLE_POINT_DRAW_SIZE));
/* HACK: add 3 instead of 1 so the number gets cleared too */
gimp_display_shell_expose_area (shell, x1, y1, x2 - x1 + 3, y2 - y1 + 3);
}
void
gimp_display_shell_expose_full (GimpDisplayShell *shell)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gtk_widget_queue_draw (shell->canvas);
}
void
gimp_display_shell_flush (GimpDisplayShell *shell,
gboolean now)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (! shell->select)
{
g_warning ("%s: called unrealized", G_STRFUNC);
return;
}
gimp_display_shell_title_update (shell);
if (now)
{
gdk_window_process_updates (shell->canvas->window, FALSE);
}
else
{
GimpContext *user_context;
gimp_ui_manager_update (shell->menubar_manager, shell->display);
user_context = gimp_get_user_context (shell->display->image->gimp);
if (shell->display == gimp_context_get_display (user_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->image->gimp, PAUSE,
shell->display);
gimp_display_shell_draw_vectors (shell);
}
}
/**
* 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)
{
gimp_display_shell_draw_vectors (shell);
/* start the currently active tool */
tool_manager_control_active (shell->display->image->gimp, RESUME,
shell->display);
}
}
void
gimp_display_shell_update_icon (GimpDisplayShell *shell)
{
GdkPixbuf *pixbuf;
gint width, height;
gdouble factor;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
factor = ((gdouble) gimp_image_get_height (shell->display->image) /
(gdouble) gimp_image_get_width (shell->display->image));
if (factor >= 1)
{
height = MAX (shell->icon_size, 1);
width = MAX (((gdouble) shell->icon_size) / factor, 1);
}
else
{
height = MAX (((gdouble) shell->icon_size) * factor, 1);
width = MAX (shell->icon_size, 1);
}
pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (shell->display->image),
width, height);
gtk_window_set_icon (GTK_WINDOW (shell), pixbuf);
}
void
gimp_display_shell_shrink_wrap (GimpDisplayShell *shell)
{
GtkWidget *widget;
GdkScreen *screen;
GdkRectangle rect;
gint monitor;
gint disp_width, disp_height;
gint width, height;
gint max_auto_width, max_auto_height;
gint border_x, border_y;
gboolean resize = FALSE;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (! GTK_WIDGET_REALIZED (shell))
return;
widget = GTK_WIDGET (shell);
screen = gtk_widget_get_screen (widget);
monitor = gdk_screen_get_monitor_at_window (screen, widget->window);
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
width = SCALEX (shell, shell->display->image->width);
height = SCALEY (shell, shell->display->image->height);
disp_width = shell->disp_width;
disp_height = shell->disp_height;
border_x = widget->allocation.width - disp_width;
border_y = widget->allocation.height - disp_height;
max_auto_width = (rect.width - border_x) * 0.75;
max_auto_height = (rect.height - border_y) * 0.75;
/* If one of the display dimensions has changed and one of the
* dimensions fits inside the screen
*/
if (((width + border_x) < rect.width || (height + border_y) < rect.height) &&
(width != disp_width || height != disp_height))
{
width = ((width + border_x) < rect.width) ? width : max_auto_width;
height = ((height + border_y) < rect.height) ? height : max_auto_height;
resize = TRUE;
}
/* If the projected dimension is greater than current, but less than
* 3/4 of the screen size, expand automagically
*/
else if ((width > disp_width || height > disp_height) &&
(disp_width < max_auto_width || disp_height < max_auto_height))
{
width = MIN (max_auto_width, width);
height = MIN (max_auto_height, height);
resize = TRUE;
}
if (resize)
{
if (width < shell->statusbar->requisition.width)
width = shell->statusbar->requisition.width;
gtk_window_resize (GTK_WINDOW (shell),
width + border_x,
height + border_y);
}
}
void
gimp_display_shell_selection_visibility (GimpDisplayShell *shell,
GimpSelectionControl control)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (shell->select)
{
switch (control)
{
case GIMP_SELECTION_OFF:
gimp_display_shell_selection_invis (shell->select);
break;
case GIMP_SELECTION_LAYER_OFF:
gimp_display_shell_selection_layer_invis (shell->select);
break;
case GIMP_SELECTION_ON:
gimp_display_shell_selection_start (shell->select, TRUE);
break;
case GIMP_SELECTION_PAUSE:
gimp_display_shell_selection_pause (shell->select);
break;
case GIMP_SELECTION_RESUME:
gimp_display_shell_selection_resume (shell->select);
break;
}
}
}
/**
* gimp_display_shell_set_highlight:
* @shell: a #GimpDisplayShell
* @highlight: a rectangle in image coordinates that should be brought out
*
* This function allows to set 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)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (shell->highlight)
{
if (highlight)
{
GdkRectangle *rects;
GdkRegion *old;
GdkRegion *new;
gint num_rects, i;
if (memcmp (shell->highlight, highlight, sizeof (GdkRectangle)) == 0)
return;
old = gdk_region_rectangle (shell->highlight);
*shell->highlight = *highlight;
new = gdk_region_rectangle (shell->highlight);
gdk_region_xor (old, new);
gdk_region_get_rectangles (old, &rects, &num_rects);
gdk_region_destroy (old);
gdk_region_destroy (new);
for (i = 0; i < num_rects; i++)
gimp_display_update_area (shell->display, TRUE,
rects[i].x,
rects[i].y,
rects[i].width,
rects[i].height);
g_free (rects);
}
else
{
g_free (shell->highlight);
shell->highlight = NULL;
gimp_display_shell_expose_full (shell);
}
}
else if (highlight)
{
shell->highlight = g_memdup (highlight, sizeof (GdkRectangle));
gimp_display_shell_expose_full (shell);
}
}
/**
* gimp_display_shell_set_mask:
* @shell: a #GimpDisplayShell
* @mask: a #GimpDrawable (1 byte per pixel)
* @color: the color to use for drawing the mask
*
* Allows to preview a selection (used by the foreground selection
* tool). Pixels that are not selected (> 127) in the mask are tinted
* with dark blue.
**/
void
gimp_display_shell_set_mask (GimpDisplayShell *shell,
GimpDrawable *mask,
GimpChannelType color)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (mask == NULL ||
(GIMP_IS_DRAWABLE (mask) &&
gimp_drawable_bytes (mask) == 1));
if (shell->mask == mask && shell->mask_color == color)
return;
if (mask)
g_object_ref (mask);
if (shell->mask)
g_object_unref (shell->mask);
shell->mask = mask;
shell->mask_color = color;
gimp_display_shell_expose_full (shell);
}
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