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gimp/app/display/gimpdisplayshell-rotate-dialog.c
Jehan 7cdf85693a app: multi-layer aware layers-mask-add and layers-mask-add-button. 
These actions raise a GimpViewableDialog. For this to work, I made this
widget work with a list of GimpViewable, not a single viewable anymore
(so maybe the widget class name should change?).
When this list contains only a single GimpViewable, it will display
exactly like before, with a viewable preview. With several viewables,
the preview won't show.

This allows to add masks to all selected layers at once, with the same
basic options for all masks, as set in the dialog.
2020-05-17 18:32:16 +02:00

294 lines
9.6 KiB
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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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "display-types.h"
#include "core/gimp.h"
#include "core/gimpviewable.h"
#include "widgets/gimpdial.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "gimpdisplay.h"
#include "gimpdisplayshell.h"
#include "gimpdisplayshell-rotate.h"
#include "gimpdisplayshell-rotate-dialog.h"
#include "gimp-intl.h"
#define RESPONSE_RESET 1
typedef struct
{
GimpDisplayShell *shell;
GtkAdjustment *rotate_adj;
gdouble old_angle;
} RotateDialogData;
/* local function prototypes */
static void gimp_display_shell_rotate_dialog_response (GtkWidget *widget,
gint response_id,
RotateDialogData *dialog);
static void gimp_display_shell_rotate_dialog_free (RotateDialogData *dialog);
static void rotate_adjustment_changed (GtkAdjustment *adj,
RotateDialogData *dialog);
static void display_shell_rotated (GimpDisplayShell *shell,
RotateDialogData *dialog);
static gboolean deg_to_rad (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data);
static gboolean rad_to_deg (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data);
/* public functions */
/**
* gimp_display_shell_rotate_dialog:
* @shell: the #GimpDisplayShell
*
* Constructs and displays a dialog allowing the user to enter a
* custom display rotate.
**/
void
gimp_display_shell_rotate_dialog (GimpDisplayShell *shell)
{
RotateDialogData *data;
GimpImage *image;
GtkWidget *toplevel;
GtkWidget *hbox;
GtkWidget *spin;
GtkWidget *dial;
GtkWidget *label;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
if (shell->rotate_dialog)
{
gtk_window_present (GTK_WINDOW (shell->rotate_dialog));
return;
}
image = gimp_display_get_image (shell->display);
data = g_slice_new (RotateDialogData);
data->shell = shell;
data->old_angle = shell->rotate_angle;
shell->rotate_dialog =
gimp_viewable_dialog_new (g_list_prepend (NULL, image),
gimp_get_user_context (shell->display->gimp),
_("Rotate View"), "display-rotate",
GIMP_ICON_OBJECT_ROTATE_180,
_("Select Rotation Angle"),
GTK_WIDGET (shell),
gimp_standard_help_func,
GIMP_HELP_VIEW_ROTATE_OTHER,
_("_Reset"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (shell->rotate_dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_object_weak_ref (G_OBJECT (shell->rotate_dialog),
(GWeakNotify) gimp_display_shell_rotate_dialog_free, data);
g_object_add_weak_pointer (G_OBJECT (shell->rotate_dialog),
(gpointer) &shell->rotate_dialog);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (shell));
gtk_window_set_transient_for (GTK_WINDOW (shell->rotate_dialog),
GTK_WINDOW (toplevel));
gtk_window_set_destroy_with_parent (GTK_WINDOW (shell->rotate_dialog), TRUE);
g_signal_connect (shell->rotate_dialog, "response",
G_CALLBACK (gimp_display_shell_rotate_dialog_response),
data);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (shell->rotate_dialog))),
hbox, TRUE, TRUE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Angle:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
data->rotate_adj = gtk_adjustment_new (shell->rotate_angle,
0.0, 360.0, 1, 15, 0);
spin = gimp_spin_button_new (data->rotate_adj, 1.0, 2);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spin), TRUE);
gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (spin), TRUE);
gtk_entry_set_activates_default (GTK_ENTRY (spin), TRUE);
gtk_box_pack_start (GTK_BOX (hbox), spin, TRUE, TRUE, 0);
gtk_widget_show (spin);
label = gtk_label_new (_("degrees"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
dial = gimp_dial_new ();
g_object_set (dial,
"size", 32,
"background", GIMP_CIRCLE_BACKGROUND_PLAIN,
"draw-beta", FALSE,
NULL);
gtk_box_pack_start (GTK_BOX (hbox), dial, FALSE, FALSE, 0);
gtk_widget_show (dial);
g_object_bind_property_full (data->rotate_adj, "value",
dial, "alpha",
G_BINDING_BIDIRECTIONAL |
G_BINDING_SYNC_CREATE,
deg_to_rad,
rad_to_deg,
NULL, NULL);
g_signal_connect (data->rotate_adj, "value-changed",
G_CALLBACK (rotate_adjustment_changed),
data);
g_signal_connect (shell, "rotated",
G_CALLBACK (display_shell_rotated),
data);
gtk_widget_show (shell->rotate_dialog);
}
static void
gimp_display_shell_rotate_dialog_response (GtkWidget *widget,
gint response_id,
RotateDialogData *dialog)
{
switch (response_id)
{
case RESPONSE_RESET:
gtk_adjustment_set_value (dialog->rotate_adj, 0.0);
break;
case GTK_RESPONSE_CANCEL:
gtk_adjustment_set_value (dialog->rotate_adj, dialog->old_angle);
/* fall thru */
default:
gtk_widget_destroy (dialog->shell->rotate_dialog);
break;
}
}
static void
gimp_display_shell_rotate_dialog_free (RotateDialogData *dialog)
{
g_signal_handlers_disconnect_by_func (dialog->shell,
display_shell_rotated,
dialog);
g_slice_free (RotateDialogData, dialog);
}
static void
rotate_adjustment_changed (GtkAdjustment *adj,
RotateDialogData *dialog)
{
gdouble angle = gtk_adjustment_get_value (dialog->rotate_adj);
g_signal_handlers_block_by_func (dialog->shell,
display_shell_rotated,
dialog);
gimp_display_shell_rotate_to (dialog->shell, angle);
g_signal_handlers_unblock_by_func (dialog->shell,
display_shell_rotated,
dialog);
}
static void
display_shell_rotated (GimpDisplayShell *shell,
RotateDialogData *dialog)
{
g_signal_handlers_block_by_func (dialog->rotate_adj,
rotate_adjustment_changed,
dialog);
gtk_adjustment_set_value (dialog->rotate_adj, shell->rotate_angle);
g_signal_handlers_unblock_by_func (dialog->rotate_adj,
rotate_adjustment_changed,
dialog);
}
static gboolean
deg_to_rad (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data)
{
gdouble value = g_value_get_double (from_value);
value = 360.0 - value;
value *= G_PI / 180.0;
g_value_set_double (to_value, value);
return TRUE;
}
static gboolean
rad_to_deg (GBinding *binding,
const GValue *from_value,
GValue *to_value,
gpointer user_data)
{
gdouble value = g_value_get_double (from_value);
value *= 180.0 / G_PI;
value = 360.0 - value;
g_value_set_double (to_value, value);
return TRUE;
}
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