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gimp/app/display/gimpdisplayshell.c

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/* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.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 "core/gimp.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/gimpprojection.h"
#include "core/gimpmarshal.h"
#include "core/gimptemplate.h"
#include "widgets/gimphelp-ids.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-cursor.h"
#include "gimpdisplayshell-dnd.h"
#include "gimpdisplayshell-draw.h"
#include "gimpdisplayshell-expose.h"
#include "gimpdisplayshell-filter.h"
#include "gimpdisplayshell-handlers.h"
#include "gimpdisplayshell-progress.h"
#include "gimpdisplayshell-render.h"
#include "gimpdisplayshell-scale.h"
#include "gimpdisplayshell-scroll.h"
#include "gimpdisplayshell-selection.h"
#include "gimpdisplayshell-title.h"
#include "gimpdisplayshell-transform.h"
#include "gimpimagewindow.h"
#include "gimpstatusbar.h"
#include "about.h"
#include "gimp-log.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_POPUP_MANAGER,
PROP_DISPLAY,
PROP_UNIT,
PROP_TITLE,
PROP_STATUS,
PROP_ICON
};
enum
{
SCALED,
SCROLLED,
RECONNECT,
LAST_SIGNAL
};
/* local function prototypes */
static void gimp_color_managed_iface_init (GimpColorManagedInterface *iface);
static GObject * gimp_display_shell_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
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_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 const guint8 * gimp_display_shell_get_icc_profile
(GimpColorManaged *managed,
gsize *len);
G_DEFINE_TYPE_WITH_CODE (GimpDisplayShell, gimp_display_shell,
GTK_TYPE_VBOX,
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);
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->constructor = gimp_display_shell_constructor;
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->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_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_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));
gtk_rc_parse_string (display_rc_style);
}
static void
gimp_display_shell_init (GimpDisplayShell *shell)
{
shell->display = NULL;
shell->popup_manager = NULL;
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->snap_to_guides = TRUE;
shell->snap_to_grid = FALSE;
shell->snap_to_canvas = FALSE;
shell->snap_to_vectors = FALSE;
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->scale_x = 1.0;
shell->scale_y = 1.0;
shell->x_dest_inc = 1;
shell->y_dest_inc = 1;
shell->x_src_dec = 1;
shell->y_src_dec = 1;
shell->last_scale = 0.0;
shell->last_scale_time = 0;
shell->last_offset_x = 0;
shell->last_offset_y = 0;
shell->last_motion_time = 0;
shell->last_motion_delta_x = 0.0;
shell->last_motion_delta_y = 0.0;
shell->last_motion_distance = 0.0;
shell->last_motion_delta_time = 0.0;
shell->disp_width = 0;
shell->disp_height = 0;
shell->proximity = FALSE;
shell->selection = 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 = NULL;
shell->quick_mask_button = NULL;
shell->zoom_button = NULL;
shell->nav_ebox = NULL;
shell->render_buf = g_new (guchar,
GIMP_DISPLAY_RENDER_BUF_WIDTH *
GIMP_DISPLAY_RENDER_BUF_HEIGHT * 3);
shell->title_idle_id = 0;
shell->icon_size = 32;
shell->icon_idle_id = 0;
shell->fill_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->zoom_on_resize = FALSE;
shell->show_transform_preview = FALSE;
shell->size_allocate_from_configure_event = FALSE;
shell->space_pressed = FALSE;
shell->space_release_pending = FALSE;
shell->space_shaded_tool = NULL;
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;
shell->event_history = g_array_new (FALSE, FALSE,
sizeof (GimpCoords));
shell->event_queue = g_array_new (FALSE, FALSE,
sizeof (GimpCoords));
shell->event_delay = FALSE;
shell->event_delay_timeout = 0;
shell->last_active_state = 0;
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_VISIBILITY_NOTIFY_MASK |
GDK_SCROLL_MASK));
gtk_box_set_spacing (GTK_BOX (shell), 1);
/* zoom model callback */
g_signal_connect_swapped (shell->zoom, "zoomed",
G_CALLBACK (gimp_display_shell_scale_changed),
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_color_managed_iface_init (GimpColorManagedInterface *iface)
{
iface->get_icc_profile = gimp_display_shell_get_icc_profile;
}
static GObject *
gimp_display_shell_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpDisplayShell *shell;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
shell = GIMP_DISPLAY_SHELL (object);
g_assert (GIMP_IS_UI_MANAGER (shell->popup_manager));
g_assert (GIMP_IS_DISPLAY (shell->display));
return object;
}
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);
if (shell->no_image_options)
g_object_unref (shell->no_image_options);
if (shell->title)
g_free (shell->title);
if (shell->status)
g_free (shell->status);
if (shell->icon)
g_object_unref (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_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;
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_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;
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_get_shell (shell->display))
gimp_display_shell_disconnect (shell);
shell->popup_manager = NULL;
gimp_display_shell_selection_free (shell);
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_slice_free (GdkRectangle, shell->highlight);
shell->highlight = NULL;
}
if (shell->mask)
{
g_object_unref (shell->mask);
shell->mask = NULL;
}
if (shell->event_history)
{
g_array_free (shell->event_history, TRUE);
shell->event_history = NULL;
}
if (shell->event_queue)
{
g_array_free (shell->event_queue, TRUE);
shell->event_queue = NULL;
}
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;
}
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);
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_screen_resolution (gtk_widget_get_screen (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_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 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 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);
if (shell->display && gimp_display_get_shell (shell->display))
{
/* if the shell is already fully constructed, use proper API
* so the actions are updated accordingly.
*/
gimp_display_shell_set_snap_to_guides (shell,
config->default_snap_to_guides);
gimp_display_shell_set_snap_to_grid (shell,
config->default_snap_to_grid);
gimp_display_shell_set_snap_to_canvas (shell,
config->default_snap_to_canvas);
gimp_display_shell_set_snap_to_vectors (shell,
config->default_snap_to_path);
}
else
{
/* otherwise the shell is currently being constructed and
* display->shell is NULL.
*/
shell->snap_to_guides = config->default_snap_to_guides;
shell->snap_to_grid = config->default_snap_to_grid;
shell->snap_to_canvas = config->default_snap_to_canvas;
shell->snap_to_vectors = config->default_snap_to_path;
}
}
/* public functions */
GtkWidget *
gimp_display_shell_new (GimpDisplay *display,
GimpUnit unit,
gdouble scale,
GimpUIManager *popup_manager)
{
GimpDisplayShell *shell;
GimpImage *image;
GimpColorDisplayStack *filter;
GtkWidget *upper_hbox;
GtkWidget *right_vbox;
GtkWidget *lower_hbox;
GtkWidget *inner_table;
GtkWidget *gtk_image;
GdkScreen *screen;
GtkAction *action;
gint image_width;
gint image_height;
gint shell_width;
gint shell_height;
g_return_val_if_fail (GIMP_IS_DISPLAY (display), NULL);
g_return_val_if_fail (GIMP_IS_UI_MANAGER (popup_manager), NULL);
/* the toplevel shell */
shell = g_object_new (GIMP_TYPE_DISPLAY_SHELL,
"popup-manager", popup_manager,
"display", display,
"unit", unit,
NULL);
image = gimp_display_get_image (display);
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 = display->config->default_dot_for_dot;
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;
}
/* adjust the initial scale -- so that window fits on screen. */
if (image)
{
gimp_display_shell_set_initial_scale (shell, scale,
&shell_width, &shell_height);
}
else
{
shell_width = -1;
shell_height = image_height;
}
gimp_display_shell_sync_config (shell, display->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
* |
* +-- 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 *********************************/
/* a hbox for the inner_table and the vertical scrollbar */
upper_hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (shell), 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 the quickmask button, vertical scrollbar and
* the navigation button
*/
lower_hbox = gtk_hbox_new (FALSE, 1);
gtk_box_pack_start (GTK_BOX (shell), 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 = gtk_event_box_new ();
gtk_image = gtk_image_new_from_stock (GIMP_STOCK_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 (display->config);
gtk_widget_set_size_request (shell->canvas, shell_width, shell_height);
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);
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 = gimp_ruler_new (GTK_ORIENTATION_VERTICAL);
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);
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 = g_object_new (GTK_TYPE_CHECK_BUTTON,
"draw-indicator", FALSE,
"relief", GTK_RELIEF_NONE,
"width-request", 18,
"height-request", 18,
NULL);
GTK_WIDGET_UNSET_FLAGS (shell->zoom_button, GTK_CAN_FOCUS);
gtk_image = gtk_image_new_from_stock (GIMP_STOCK_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_UNSET_FLAGS (shell->quick_mask_button, GTK_CAN_FOCUS);
gtk_image = gtk_image_new_from_stock (GIMP_STOCK_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 (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_stock (GIMP_STOCK_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_nav_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 (shell), 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));
/* add display filter for color management */
filter = gimp_display_shell_filter_new (shell,
display->gimp->config->color_management);
if (filter)
{
gimp_display_shell_filter_set (shell, filter);
g_object_unref (filter);
}
if (image)
{
gimp_display_shell_connect (shell);
/* After connecting to the image we want to center it. Since we
* not even finnished creating the display shell, we can safely
* assume we will get a size-allocate later.
*/
gimp_display_shell_scroll_center_image_on_next_size_allocate (shell,
TRUE,
TRUE);
}
else
{
gimp_help_set_help_data (shell->canvas,
_("Drop image files here to open them"),
NULL);
gimp_statusbar_empty (GIMP_STATUSBAR (shell->statusbar));
}
/* make sure the information is up-to-date */
gimp_display_shell_scale_changed (shell);
return GTK_WIDGET (shell);
}
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);
}
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);
}
void
gimp_display_shell_empty (GimpDisplayShell *shell)
{
GimpContext *user_context;
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;
}
gimp_display_shell_selection_control (shell, GIMP_SELECTION_OFF);
gimp_display_shell_unset_cursor (shell);
gimp_display_shell_appearance_update (shell);
gimp_help_set_help_data (shell->canvas,
_("Drop image files here to open them"), NULL);
gimp_statusbar_empty (GIMP_STATUSBAR (shell->statusbar));
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);
}
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)
{
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));
gimp_display_shell_set_unit (shell, unit);
gimp_display_shell_set_initial_scale (shell, scale, NULL, NULL);
gimp_display_shell_scale_changed (shell);
gimp_display_shell_sync_config (shell, shell->display->config);
gimp_display_shell_appearance_update (shell);
gimp_help_set_help_data (shell->canvas, NULL, NULL);
gimp_statusbar_fill (GIMP_STATUSBAR (shell->statusbar));
/* A size-allocate will always occur because the scrollbars will
* become visible forcing the canvas to become smaller
*/
gimp_display_shell_scroll_center_image_on_next_size_allocate (shell,
TRUE,
TRUE);
shell->fill_idle_id = g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_display_shell_fill_idle,
shell, NULL);
}
/* We used to calculate the scale factor in the SCALEFACTOR_X() and
* SCALEFACTOR_Y() macros. But since these are rather frequently
* called and the values rarely change, we now store them in the
* shell and call this function whenever they need to be recalculated.
*/
void
gimp_display_shell_scale_changed (GimpDisplayShell *shell)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
image = gimp_display_get_image (shell->display);
if (image)
{
gimp_display_shell_calculate_scale_x_and_y (shell,
gimp_zoom_model_get_factor (shell->zoom),
&shell->scale_x,
&shell->scale_y);
shell->x_dest_inc = gimp_image_get_width (image);
shell->y_dest_inc = gimp_image_get_height (image);
shell->x_src_dec = SCALEX (shell, gimp_image_get_width (image));
shell->y_src_dec = SCALEY (shell, gimp_image_get_height (image));
if (shell->x_src_dec < 1)
shell->x_src_dec = 1;
if (shell->y_src_dec < 1)
shell->y_src_dec = 1;
}
else
{
shell->scale_x = 1.0;
shell->scale_y = 1.0;
shell->x_dest_inc = 1;
shell->y_dest_inc = 1;
shell->x_src_dec = 1;
shell->y_src_dec = 1;
}
}
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_update_rulers (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);
}
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 *x1,
gint *y1,
gint *x2,
gint *y2)
{
GimpImage *image;
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);
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 off_x;
gint off_y;
gimp_item_get_offset (GIMP_ITEM (layer), &off_x, &off_y);
if (! gimp_channel_bounds (gimp_image_get_mask (image),
x1, y1, x2, y2))
{
*x1 = off_x;
*y1 = off_y;
*x2 = off_x + gimp_item_get_width (GIMP_ITEM (layer));
*y2 = off_y + gimp_item_get_height (GIMP_ITEM (layer));
}
else
{
*x1 = MIN (off_x, *x1);
*y1 = MIN (off_y, *y1);
*x2 = MAX (off_x + gimp_item_get_width (GIMP_ITEM (layer)), *x2);
*y2 = MAX (off_y + gimp_item_get_height (GIMP_ITEM (layer)), *y2);
}
}
else if (! gimp_channel_bounds (gimp_image_get_mask (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_flush (GimpDisplayShell *shell,
gboolean now)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gimp_display_shell_title_update (shell);
/* make sure the information is up-to-date */
gimp_display_shell_scale_changed (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;
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_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->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
*
* 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_slice_free (GdkRectangle, shell->highlight);
shell->highlight = NULL;
gimp_display_shell_expose_full (shell);
}
}
else if (highlight)
{
shell->highlight = g_slice_new (GdkRectangle);
*shell->highlight = *highlight;
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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