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gimp/app/tools/gimptransformgridoptions.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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimppropwidgets.h"
#include "widgets/gimpspinscale.h"
#include "widgets/gimpwidgets-utils.h"
#include "gimpperspectivetool.h"
#include "gimprotatetool.h"
#include "gimpscaletool.h"
#include "gimpunifiedtransformtool.h"
#include "gimptooloptions-gui.h"
#include "gimptransformgridoptions.h"
#include "gimptransformgridtool.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_DIRECTION,
PROP_DIRECTION_LINKED,
PROP_SHOW_PREVIEW,
PROP_PREVIEW_OPACITY,
PROP_GRID_TYPE,
PROP_GRID_SIZE,
PROP_CONSTRAIN_MOVE,
PROP_CONSTRAIN_SCALE,
PROP_CONSTRAIN_ROTATE,
PROP_CONSTRAIN_SHEAR,
PROP_CONSTRAIN_PERSPECTIVE,
PROP_FROMPIVOT_SCALE,
PROP_FROMPIVOT_SHEAR,
PROP_FROMPIVOT_PERSPECTIVE,
PROP_CORNERSNAP,
PROP_FIXEDPIVOT,
};
static void gimp_transform_grid_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_transform_grid_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gboolean gimp_transform_grid_options_sync_grid (GBinding *binding,
const GValue *source_value,
GValue *target_value,
gpointer user_data);
G_DEFINE_TYPE (GimpTransformGridOptions, gimp_transform_grid_options,
GIMP_TYPE_TRANSFORM_OPTIONS)
#define parent_class gimp_transform_grid_options_parent_class
static void
gimp_transform_grid_options_class_init (GimpTransformGridOptionsClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gimp_transform_grid_options_set_property;
object_class->get_property = gimp_transform_grid_options_get_property;
g_object_class_override_property (object_class, PROP_DIRECTION,
"direction");
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_DIRECTION_LINKED,
"direction-linked",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_SHOW_PREVIEW,
"show-preview",
_("Show image preview"),
_("Show a preview of the transformed image"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_DOUBLE (object_class, PROP_PREVIEW_OPACITY,
"preview-opacity",
_("Image opacity"),
_("Opacity of the preview image"),
0.0, 1.0, 1.0,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_ENUM (object_class, PROP_GRID_TYPE,
"grid-type",
_("Guides"),
_("Composition guides such as rule of thirds"),
GIMP_TYPE_GUIDES_TYPE,
GIMP_GUIDES_NONE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_INT (object_class, PROP_GRID_SIZE,
"grid-size",
NULL,
_("Size of a grid cell for variable number "
"of composition guides"),
1, 128, 15,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CONSTRAIN_MOVE,
"constrain-move",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CONSTRAIN_SCALE,
"constrain-scale",
NULL, NULL,
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CONSTRAIN_ROTATE,
"constrain-rotate",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CONSTRAIN_SHEAR,
"constrain-shear",
NULL, NULL,
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CONSTRAIN_PERSPECTIVE,
"constrain-perspective",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_FROMPIVOT_SCALE,
"frompivot-scale",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_FROMPIVOT_SHEAR,
"frompivot-shear",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_FROMPIVOT_PERSPECTIVE,
"frompivot-perspective",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_CORNERSNAP,
"cornersnap",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_FIXEDPIVOT,
"fixedpivot",
NULL, NULL,
FALSE,
GIMP_PARAM_STATIC_STRINGS);
}
static void
gimp_transform_grid_options_init (GimpTransformGridOptions *options)
{
}
static void
gimp_transform_grid_options_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpTransformGridOptions *options = GIMP_TRANSFORM_GRID_OPTIONS (object);
GimpTransformOptions *transform_options = GIMP_TRANSFORM_OPTIONS (object);
switch (property_id)
{
case PROP_DIRECTION:
transform_options->direction = g_value_get_enum (value);
/* Expected default for corrective transform_grid is to see the
* original image only.
*/
g_object_set (options,
"show-preview",
transform_options->direction != GIMP_TRANSFORM_BACKWARD,
NULL);
break;
case PROP_DIRECTION_LINKED:
options->direction_linked = g_value_get_boolean (value);
break;
case PROP_SHOW_PREVIEW:
options->show_preview = g_value_get_boolean (value);
break;
case PROP_PREVIEW_OPACITY:
options->preview_opacity = g_value_get_double (value);
break;
case PROP_GRID_TYPE:
options->grid_type = g_value_get_enum (value);
break;
case PROP_GRID_SIZE:
options->grid_size = g_value_get_int (value);
break;
case PROP_CONSTRAIN_MOVE:
options->constrain_move = g_value_get_boolean (value);
break;
case PROP_CONSTRAIN_SCALE:
options->constrain_scale = g_value_get_boolean (value);
break;
case PROP_CONSTRAIN_ROTATE:
options->constrain_rotate = g_value_get_boolean (value);
break;
case PROP_CONSTRAIN_SHEAR:
options->constrain_shear = g_value_get_boolean (value);
break;
case PROP_CONSTRAIN_PERSPECTIVE:
options->constrain_perspective = g_value_get_boolean (value);
break;
case PROP_FROMPIVOT_SCALE:
options->frompivot_scale = g_value_get_boolean (value);
break;
case PROP_FROMPIVOT_SHEAR:
options->frompivot_shear = g_value_get_boolean (value);
break;
case PROP_FROMPIVOT_PERSPECTIVE:
options->frompivot_perspective = g_value_get_boolean (value);
break;
case PROP_CORNERSNAP:
options->cornersnap = g_value_get_boolean (value);
break;
case PROP_FIXEDPIVOT:
options->fixedpivot = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_transform_grid_options_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpTransformGridOptions *options = GIMP_TRANSFORM_GRID_OPTIONS (object);
GimpTransformOptions *transform_options = GIMP_TRANSFORM_OPTIONS (object);
switch (property_id)
{
case PROP_DIRECTION:
g_value_set_enum (value, transform_options->direction);
break;
case PROP_DIRECTION_LINKED:
g_value_set_boolean (value, options->direction_linked);
break;
case PROP_SHOW_PREVIEW:
g_value_set_boolean (value, options->show_preview);
break;
case PROP_PREVIEW_OPACITY:
g_value_set_double (value, options->preview_opacity);
break;
case PROP_GRID_TYPE:
g_value_set_enum (value, options->grid_type);
break;
case PROP_GRID_SIZE:
g_value_set_int (value, options->grid_size);
break;
case PROP_CONSTRAIN_MOVE:
g_value_set_boolean (value, options->constrain_move);
break;
case PROP_CONSTRAIN_SCALE:
g_value_set_boolean (value, options->constrain_scale);
break;
case PROP_CONSTRAIN_ROTATE:
g_value_set_boolean (value, options->constrain_rotate);
break;
case PROP_CONSTRAIN_SHEAR:
g_value_set_boolean (value, options->constrain_shear);
break;
case PROP_CONSTRAIN_PERSPECTIVE:
g_value_set_boolean (value, options->constrain_perspective);
break;
case PROP_FROMPIVOT_SCALE:
g_value_set_boolean (value, options->frompivot_scale);
break;
case PROP_FROMPIVOT_SHEAR:
g_value_set_boolean (value, options->frompivot_shear);
break;
case PROP_FROMPIVOT_PERSPECTIVE:
g_value_set_boolean (value, options->frompivot_perspective);
break;
case PROP_CORNERSNAP:
g_value_set_boolean (value, options->cornersnap);
break;
case PROP_FIXEDPIVOT:
g_value_set_boolean (value, options->fixedpivot);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/**
* gimp_transform_grid_options_gui:
* @tool_options: a #GimpToolOptions
*
* Build the TransformGrid Tool Options.
*
* Returns: a container holding the transform_grid tool options
**/
GtkWidget *
gimp_transform_grid_options_gui (GimpToolOptions *tool_options)
{
GObject *config = G_OBJECT (tool_options);
GimpTransformGridToolClass *tg_class;
GtkWidget *vbox;
GtkWidget *frame;
GtkWidget *combo;
GtkWidget *scale;
GtkWidget *grid_box;
GdkModifierType extend_mask = gimp_get_extend_selection_mask ();
GdkModifierType constrain_mask = gimp_get_constrain_behavior_mask ();
vbox = gimp_transform_options_gui (tool_options, TRUE, TRUE, TRUE);
tg_class = g_type_class_ref (tool_options->tool_info->tool_type);
/* the direction-link button */
if (tg_class->matrix_to_info)
{
GimpTransformOptions *tr_options = GIMP_TRANSFORM_OPTIONS (tool_options);
GtkWidget *vbox2;
GtkWidget *hbox;
GtkWidget *button;
vbox2 = gtk_bin_get_child (GTK_BIN (tr_options->direction_frame));
g_object_ref (vbox2);
gtk_container_remove (GTK_CONTAINER (tr_options->direction_frame), vbox2);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 1);
gtk_container_add (GTK_CONTAINER (tr_options->direction_frame), hbox);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (hbox), vbox2, TRUE, TRUE, 0);
g_object_unref (vbox2);
button = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gimp_chain_button_set_icon_size (GIMP_CHAIN_BUTTON (button),
GTK_ICON_SIZE_MENU);
gtk_widget_show (button);
g_object_bind_property (config, "direction-linked",
button, "active",
G_BINDING_BIDIRECTIONAL |
G_BINDING_SYNC_CREATE);
}
g_type_class_unref (tg_class);
/* the preview frame */
scale = gimp_prop_spin_scale_new (config, "preview-opacity", NULL,
0.01, 0.1, 0);
gimp_prop_widget_set_factor (scale, 100.0, 0.0, 0.0, 1);
frame = gimp_prop_expanding_frame_new (config, "show-preview", NULL,
scale, NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
/* the guides frame */
frame = gimp_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
/* the guides type menu */
combo = gimp_prop_enum_combo_box_new (config, "grid-type", 0, 0);
gimp_int_combo_box_set_label (GIMP_INT_COMBO_BOX (combo), _("Guides"));
g_object_set (combo, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
gtk_frame_set_label_widget (GTK_FRAME (frame), combo);
gtk_widget_show (combo);
/* the grid density scale */
scale = gimp_prop_spin_scale_new (config, "grid-size", NULL,
1.8, 8.0, 0);
gimp_spin_scale_set_label (GIMP_SPIN_SCALE (scale), NULL);
gtk_container_add (GTK_CONTAINER (frame), scale);
g_object_bind_property_full (config, "grid-type",
scale, "visible",
G_BINDING_SYNC_CREATE,
gimp_transform_grid_options_sync_grid,
NULL,
NULL, NULL);
if (tool_options->tool_info->tool_type == GIMP_TYPE_ROTATE_TOOL)
{
GtkWidget *button;
gchar *label;
label = g_strdup_printf (_("15 degrees (%s)"),
gimp_get_mod_string (extend_mask));
button = gimp_prop_check_button_new (config, "constrain-rotate", label);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Limit rotation steps to 15 degrees"),
NULL);
g_free (label);
}
else if (tool_options->tool_info->tool_type == GIMP_TYPE_SCALE_TOOL)
{
GtkWidget *button;
gchar *label;
label = g_strdup_printf (_("Keep aspect (%s)"),
gimp_get_mod_string (extend_mask));
button = gimp_prop_check_button_new (config, "constrain-scale", label);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Keep the original aspect ratio"),
NULL);
g_free (label);
label = g_strdup_printf (_("Around center (%s)"),
gimp_get_mod_string (constrain_mask));
button = gimp_prop_check_button_new (config, "frompivot-scale", label);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Scale around the center point"),
NULL);
g_free (label);
}
else if (tool_options->tool_info->tool_type == GIMP_TYPE_PERSPECTIVE_TOOL)
{
GtkWidget *button;
gchar *label;
label = g_strdup_printf (_("Constrain handles (%s)"),
gimp_get_mod_string (extend_mask));
button = gimp_prop_check_button_new (config, "constrain-perspective", label);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (
button, _("Constrain handles to move along edges and diagonal (%s)"),
NULL);
g_free (label);
label = g_strdup_printf (_("Around center (%s)"),
gimp_get_mod_string (constrain_mask));
button = gimp_prop_check_button_new (config, "frompivot-perspective", label);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (
button, _("Transform around the center point"),
NULL);
g_free (label);
}
else if (tool_options->tool_info->tool_type == GIMP_TYPE_UNIFIED_TRANSFORM_TOOL)
{
struct
{
GdkModifierType mod;
gchar *name;
gchar *desc;
gchar *tip;
}
opt_list[] =
{
{ extend_mask, NULL, N_("Constrain (%s)") },
{ extend_mask, "constrain-move", N_("Move"),
N_("Constrain movement to 45 degree angles from center (%s)") },
{ extend_mask, "constrain-scale", N_("Scale"),
N_("Maintain aspect ratio when scaling (%s)") },
{ extend_mask, "constrain-rotate", N_("Rotate"),
N_("Constrain rotation to 15 degree increments (%s)") },
{ extend_mask, "constrain-shear", N_("Shear"),
N_("Shear along edge direction only (%s)") },
{ extend_mask, "constrain-perspective", N_("Perspective"),
N_("Constrain perspective handles to move along edges and diagonal (%s)") },
{ constrain_mask, NULL,
N_("From pivot (%s)") },
{ constrain_mask, "frompivot-scale", N_("Scale"),
N_("Scale from pivot point (%s)") },
{ constrain_mask, "frompivot-shear", N_("Shear"),
N_("Shear opposite edge by same amount (%s)") },
{ constrain_mask, "frompivot-perspective", N_("Perspective"),
N_("Maintain position of pivot while changing perspective (%s)") },
{ 0, NULL,
N_("Pivot") },
{ extend_mask, "cornersnap", N_("Snap (%s)"),
N_("Snap pivot to corners and center (%s)") },
{ 0, "fixedpivot", N_("Lock"),
N_("Lock pivot position to canvas") },
};
GtkWidget *button;
gchar *label;
gint i;
frame = NULL;
for (i = 0; i < G_N_ELEMENTS (opt_list); i++)
{
if (! opt_list[i].name && ! opt_list[i].desc)
{
frame = NULL;
continue;
}
label = g_strdup_printf (gettext (opt_list[i].desc),
gimp_get_mod_string (opt_list[i].mod));
if (opt_list[i].name)
{
button = gimp_prop_check_button_new (config, opt_list[i].name,
label);
gtk_box_pack_start (GTK_BOX (frame ? grid_box : vbox),
button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_free (label);
label = g_strdup_printf (gettext (opt_list[i].tip),
gimp_get_mod_string (opt_list[i].mod));
gimp_help_set_help_data (button, label, NULL);
}
else
{
frame = gimp_frame_new (label);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
grid_box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add (GTK_CONTAINER (frame), grid_box);
gtk_widget_show (grid_box);
}
g_free (label);
}
}
return vbox;
}
gboolean
gimp_transform_grid_options_show_preview (GimpTransformGridOptions *options)
{
GimpTransformOptions *transform_options;
g_return_val_if_fail (GIMP_IS_TRANSFORM_GRID_OPTIONS (options), FALSE);
transform_options = GIMP_TRANSFORM_OPTIONS (options);
if (options->show_preview)
{
switch (transform_options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
case GIMP_TRANSFORM_TYPE_IMAGE:
return TRUE;
case GIMP_TRANSFORM_TYPE_SELECTION:
case GIMP_TRANSFORM_TYPE_PATH:
return FALSE;
}
}
return FALSE;
}
/* private functions */
static gboolean
gimp_transform_grid_options_sync_grid (GBinding *binding,
const GValue *source_value,
GValue *target_value,
gpointer user_data)
{
GimpGuidesType type = g_value_get_enum (source_value);
g_value_set_boolean (target_value,
type == GIMP_GUIDES_N_LINES ||
type == GIMP_GUIDES_SPACING);
return TRUE;
}
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