389 lines
15 KiB
C
389 lines
15 KiB
C
|
/* PIKA - Photo and Image Kooker Application
|
||
|
|
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
|
||
|
|
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
|
||
|
|
*
|
||
|
|
* Original copyright, applying to most contents (license remains unchanged):
|
||
|
|
* 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 "libpikamath/pikamath.h"
|
||
|
|
#include "libpikawidgets/pikawidgets.h"
|
||
|
|
|
||
|
|
#include "tools-types.h"
|
||
|
|
|
||
|
|
#include "widgets/pikahelp-ids.h"
|
||
|
|
#include "widgets/pikawidgets-utils.h"
|
||
|
|
|
||
|
|
#include "display/pikadisplay.h"
|
||
|
|
#include "display/pikatoolhandlegrid.h"
|
||
|
|
#include "display/pikatoolgui.h"
|
||
|
|
|
||
|
|
#include "pikahandletransformoptions.h"
|
||
|
|
#include "pikahandletransformtool.h"
|
||
|
|
#include "pikatoolcontrol.h"
|
||
|
|
|
||
|
|
#include "pika-intl.h"
|
||
|
|
|
||
|
|
|
||
|
|
/* the transformation is defined by 8 points:
|
||
|
|
*
|
||
|
|
* 4 points on the original image and 4 corresponding points on the
|
||
|
|
* transformed image. The first N_HANDLES points on the transformed
|
||
|
|
* image are visible as handles.
|
||
|
|
*
|
||
|
|
* For these handles, the constants TRANSFORM_HANDLE_N,
|
||
|
|
* TRANSFORM_HANDLE_S, TRANSFORM_HANDLE_E and TRANSFORM_HANDLE_W are
|
||
|
|
* used. Actually, it makes no sense to name the handles with north,
|
||
|
|
* south, east, and west. But this way, we don't need to define even
|
||
|
|
* more enum constants.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* index into trans_info array */
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
X0,
|
||
|
|
Y0,
|
||
|
|
X1,
|
||
|
|
Y1,
|
||
|
|
X2,
|
||
|
|
Y2,
|
||
|
|
X3,
|
||
|
|
Y3,
|
||
|
|
OX0,
|
||
|
|
OY0,
|
||
|
|
OX1,
|
||
|
|
OY1,
|
||
|
|
OX2,
|
||
|
|
OY2,
|
||
|
|
OX3,
|
||
|
|
OY3,
|
||
|
|
N_HANDLES
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* local function prototypes */
|
||
|
|
|
||
|
|
static void pika_handle_transform_tool_modifier_key (PikaTool *tool,
|
||
|
|
GdkModifierType key,
|
||
|
|
gboolean press,
|
||
|
|
GdkModifierType state,
|
||
|
|
PikaDisplay *display);
|
||
|
|
|
||
|
|
static void pika_handle_transform_tool_matrix_to_info (PikaTransformGridTool *tg_tool,
|
||
|
|
const PikaMatrix3 *transform);
|
||
|
|
static void pika_handle_transform_tool_prepare (PikaTransformGridTool *tg_tool);
|
||
|
|
static PikaToolWidget * pika_handle_transform_tool_get_widget (PikaTransformGridTool *tg_tool);
|
||
|
|
static void pika_handle_transform_tool_update_widget (PikaTransformGridTool *tg_tool);
|
||
|
|
static void pika_handle_transform_tool_widget_changed (PikaTransformGridTool *tg_tool);
|
||
|
|
|
||
|
|
static void pika_handle_transform_tool_info_to_points (PikaGenericTransformTool *generic);
|
||
|
|
|
||
|
|
|
||
|
|
G_DEFINE_TYPE (PikaHandleTransformTool, pika_handle_transform_tool,
|
||
|
|
PIKA_TYPE_GENERIC_TRANSFORM_TOOL)
|
||
|
|
|
||
|
|
#define parent_class pika_handle_transform_tool_parent_class
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_handle_transform_tool_register (PikaToolRegisterCallback callback,
|
||
|
|
gpointer data)
|
||
|
|
{
|
||
|
|
(* callback) (PIKA_TYPE_HANDLE_TRANSFORM_TOOL,
|
||
|
|
PIKA_TYPE_HANDLE_TRANSFORM_OPTIONS,
|
||
|
|
pika_handle_transform_options_gui,
|
||
|
|
PIKA_CONTEXT_PROP_MASK_BACKGROUND,
|
||
|
|
"pika-handle-transform-tool",
|
||
|
|
_("Handle Transform"),
|
||
|
|
_("Handle Transform Tool: "
|
||
|
|
"Deform the layer, selection or path with handles"),
|
||
|
|
N_("_Handle Transform"), "<shift>L",
|
||
|
|
NULL, PIKA_HELP_TOOL_HANDLE_TRANSFORM,
|
||
|
|
PIKA_ICON_TOOL_HANDLE_TRANSFORM,
|
||
|
|
data);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_class_init (PikaHandleTransformToolClass *klass)
|
||
|
|
{
|
||
|
|
PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
|
||
|
|
PikaTransformToolClass *tr_class = PIKA_TRANSFORM_TOOL_CLASS (klass);
|
||
|
|
PikaTransformGridToolClass *tg_class = PIKA_TRANSFORM_GRID_TOOL_CLASS (klass);
|
||
|
|
PikaGenericTransformToolClass *generic_class = PIKA_GENERIC_TRANSFORM_TOOL_CLASS (klass);
|
||
|
|
|
||
|
|
tool_class->modifier_key = pika_handle_transform_tool_modifier_key;
|
||
|
|
|
||
|
|
tg_class->matrix_to_info = pika_handle_transform_tool_matrix_to_info;
|
||
|
|
tg_class->prepare = pika_handle_transform_tool_prepare;
|
||
|
|
tg_class->get_widget = pika_handle_transform_tool_get_widget;
|
||
|
|
tg_class->update_widget = pika_handle_transform_tool_update_widget;
|
||
|
|
tg_class->widget_changed = pika_handle_transform_tool_widget_changed;
|
||
|
|
|
||
|
|
generic_class->info_to_points = pika_handle_transform_tool_info_to_points;
|
||
|
|
|
||
|
|
tr_class->undo_desc = C_("undo-type", "Handle transform");
|
||
|
|
tr_class->progress_text = _("Handle transformation");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_init (PikaHandleTransformTool *ht_tool)
|
||
|
|
{
|
||
|
|
ht_tool->saved_handle_mode = PIKA_HANDLE_MODE_ADD_TRANSFORM;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_modifier_key (PikaTool *tool,
|
||
|
|
GdkModifierType key,
|
||
|
|
gboolean press,
|
||
|
|
GdkModifierType state,
|
||
|
|
PikaDisplay *display)
|
||
|
|
{
|
||
|
|
PikaHandleTransformTool *ht_tool = PIKA_HANDLE_TRANSFORM_TOOL (tool);
|
||
|
|
PikaHandleTransformOptions *options;
|
||
|
|
GdkModifierType shift = pika_get_extend_selection_mask ();
|
||
|
|
GdkModifierType ctrl = pika_get_constrain_behavior_mask ();
|
||
|
|
PikaTransformHandleMode handle_mode;
|
||
|
|
|
||
|
|
options = PIKA_HANDLE_TRANSFORM_TOOL_GET_OPTIONS (tool);
|
||
|
|
|
||
|
|
handle_mode = options->handle_mode;
|
||
|
|
|
||
|
|
if (press)
|
||
|
|
{
|
||
|
|
if (key == (state & (shift | ctrl)))
|
||
|
|
{
|
||
|
|
/* first modifier pressed */
|
||
|
|
ht_tool->saved_handle_mode = options->handle_mode;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (! (state & (shift | ctrl)))
|
||
|
|
{
|
||
|
|
/* last modifier released */
|
||
|
|
handle_mode = ht_tool->saved_handle_mode;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (state & shift)
|
||
|
|
{
|
||
|
|
handle_mode = PIKA_HANDLE_MODE_MOVE;
|
||
|
|
}
|
||
|
|
else if (state & ctrl)
|
||
|
|
{
|
||
|
|
handle_mode = PIKA_HANDLE_MODE_REMOVE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (handle_mode != options->handle_mode)
|
||
|
|
{
|
||
|
|
g_object_set (options,
|
||
|
|
"handle-mode", handle_mode,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
PIKA_TOOL_CLASS (parent_class)->modifier_key (tool, key, press,
|
||
|
|
state, display);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_matrix_to_info (PikaTransformGridTool *tg_tool,
|
||
|
|
const PikaMatrix3 *transform)
|
||
|
|
{
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tg_tool->trans_info[OX0],
|
||
|
|
tg_tool->trans_info[OY0],
|
||
|
|
&tg_tool->trans_info[X0],
|
||
|
|
&tg_tool->trans_info[Y0]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tg_tool->trans_info[OX1],
|
||
|
|
tg_tool->trans_info[OY1],
|
||
|
|
&tg_tool->trans_info[X1],
|
||
|
|
&tg_tool->trans_info[Y1]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tg_tool->trans_info[OX2],
|
||
|
|
tg_tool->trans_info[OY2],
|
||
|
|
&tg_tool->trans_info[X2],
|
||
|
|
&tg_tool->trans_info[Y2]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tg_tool->trans_info[OX3],
|
||
|
|
tg_tool->trans_info[OY3],
|
||
|
|
&tg_tool->trans_info[X3],
|
||
|
|
&tg_tool->trans_info[Y3]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_prepare (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
|
||
|
|
PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->prepare (tg_tool);
|
||
|
|
|
||
|
|
tg_tool->trans_info[X0] = (gdouble) tr_tool->x1;
|
||
|
|
tg_tool->trans_info[Y0] = (gdouble) tr_tool->y1;
|
||
|
|
tg_tool->trans_info[X1] = (gdouble) tr_tool->x2;
|
||
|
|
tg_tool->trans_info[Y1] = (gdouble) tr_tool->y1;
|
||
|
|
tg_tool->trans_info[X2] = (gdouble) tr_tool->x1;
|
||
|
|
tg_tool->trans_info[Y2] = (gdouble) tr_tool->y2;
|
||
|
|
tg_tool->trans_info[X3] = (gdouble) tr_tool->x2;
|
||
|
|
tg_tool->trans_info[Y3] = (gdouble) tr_tool->y2;
|
||
|
|
tg_tool->trans_info[OX0] = (gdouble) tr_tool->x1;
|
||
|
|
tg_tool->trans_info[OY0] = (gdouble) tr_tool->y1;
|
||
|
|
tg_tool->trans_info[OX1] = (gdouble) tr_tool->x2;
|
||
|
|
tg_tool->trans_info[OY1] = (gdouble) tr_tool->y1;
|
||
|
|
tg_tool->trans_info[OX2] = (gdouble) tr_tool->x1;
|
||
|
|
tg_tool->trans_info[OY2] = (gdouble) tr_tool->y2;
|
||
|
|
tg_tool->trans_info[OX3] = (gdouble) tr_tool->x2;
|
||
|
|
tg_tool->trans_info[OY3] = (gdouble) tr_tool->y2;
|
||
|
|
tg_tool->trans_info[N_HANDLES] = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static PikaToolWidget *
|
||
|
|
pika_handle_transform_tool_get_widget (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTool *tool = PIKA_TOOL (tg_tool);
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
PikaHandleTransformOptions *options;
|
||
|
|
PikaDisplayShell *shell = pika_display_get_shell (tool->display);
|
||
|
|
PikaToolWidget *widget;
|
||
|
|
|
||
|
|
options = PIKA_HANDLE_TRANSFORM_TOOL_GET_OPTIONS (tg_tool);
|
||
|
|
|
||
|
|
widget = pika_tool_handle_grid_new (shell,
|
||
|
|
tr_tool->x1,
|
||
|
|
tr_tool->y1,
|
||
|
|
tr_tool->x2,
|
||
|
|
tr_tool->y2);
|
||
|
|
|
||
|
|
g_object_set (widget,
|
||
|
|
"n-handles", (gint) tg_tool->trans_info[N_HANDLES],
|
||
|
|
"orig-x1", tg_tool->trans_info[OX0],
|
||
|
|
"orig-y1", tg_tool->trans_info[OY0],
|
||
|
|
"orig-x2", tg_tool->trans_info[OX1],
|
||
|
|
"orig-y2", tg_tool->trans_info[OY1],
|
||
|
|
"orig-x3", tg_tool->trans_info[OX2],
|
||
|
|
"orig-y3", tg_tool->trans_info[OY2],
|
||
|
|
"orig-x4", tg_tool->trans_info[OX3],
|
||
|
|
"orig-y4", tg_tool->trans_info[OY3],
|
||
|
|
"trans-x1", tg_tool->trans_info[X0],
|
||
|
|
"trans-y1", tg_tool->trans_info[Y0],
|
||
|
|
"trans-x2", tg_tool->trans_info[X1],
|
||
|
|
"trans-y2", tg_tool->trans_info[Y1],
|
||
|
|
"trans-x3", tg_tool->trans_info[X2],
|
||
|
|
"trans-y3", tg_tool->trans_info[Y2],
|
||
|
|
"trans-x4", tg_tool->trans_info[X3],
|
||
|
|
"trans-y4", tg_tool->trans_info[Y3],
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
g_object_bind_property (G_OBJECT (options), "handle-mode",
|
||
|
|
G_OBJECT (widget), "handle-mode",
|
||
|
|
G_BINDING_SYNC_CREATE |
|
||
|
|
G_BINDING_BIDIRECTIONAL);
|
||
|
|
|
||
|
|
return widget;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_update_widget (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaMatrix3 transform;
|
||
|
|
gboolean transform_valid;
|
||
|
|
|
||
|
|
PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->update_widget (tg_tool);
|
||
|
|
|
||
|
|
transform_valid = pika_transform_grid_tool_info_to_matrix (tg_tool,
|
||
|
|
&transform);
|
||
|
|
|
||
|
|
g_object_set (tg_tool->widget,
|
||
|
|
"show-guides", transform_valid,
|
||
|
|
"n-handles", (gint) tg_tool->trans_info[N_HANDLES],
|
||
|
|
"orig-x1", tg_tool->trans_info[OX0],
|
||
|
|
"orig-y1", tg_tool->trans_info[OY0],
|
||
|
|
"orig-x2", tg_tool->trans_info[OX1],
|
||
|
|
"orig-y2", tg_tool->trans_info[OY1],
|
||
|
|
"orig-x3", tg_tool->trans_info[OX2],
|
||
|
|
"orig-y3", tg_tool->trans_info[OY2],
|
||
|
|
"orig-x4", tg_tool->trans_info[OX3],
|
||
|
|
"orig-y4", tg_tool->trans_info[OY3],
|
||
|
|
"trans-x1", tg_tool->trans_info[X0],
|
||
|
|
"trans-y1", tg_tool->trans_info[Y0],
|
||
|
|
"trans-x2", tg_tool->trans_info[X1],
|
||
|
|
"trans-y2", tg_tool->trans_info[Y1],
|
||
|
|
"trans-x3", tg_tool->trans_info[X2],
|
||
|
|
"trans-y3", tg_tool->trans_info[Y2],
|
||
|
|
"trans-x4", tg_tool->trans_info[X3],
|
||
|
|
"trans-y4", tg_tool->trans_info[Y3],
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_widget_changed (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
gint n_handles;
|
||
|
|
|
||
|
|
g_object_get (tg_tool->widget,
|
||
|
|
"n-handles", &n_handles,
|
||
|
|
"orig-x1", &tg_tool->trans_info[OX0],
|
||
|
|
"orig-y1", &tg_tool->trans_info[OY0],
|
||
|
|
"orig-x2", &tg_tool->trans_info[OX1],
|
||
|
|
"orig-y2", &tg_tool->trans_info[OY1],
|
||
|
|
"orig-x3", &tg_tool->trans_info[OX2],
|
||
|
|
"orig-y3", &tg_tool->trans_info[OY2],
|
||
|
|
"orig-x4", &tg_tool->trans_info[OX3],
|
||
|
|
"orig-y4", &tg_tool->trans_info[OY3],
|
||
|
|
"trans-x1", &tg_tool->trans_info[X0],
|
||
|
|
"trans-y1", &tg_tool->trans_info[Y0],
|
||
|
|
"trans-x2", &tg_tool->trans_info[X1],
|
||
|
|
"trans-y2", &tg_tool->trans_info[Y1],
|
||
|
|
"trans-x3", &tg_tool->trans_info[X2],
|
||
|
|
"trans-y3", &tg_tool->trans_info[Y2],
|
||
|
|
"trans-x4", &tg_tool->trans_info[X3],
|
||
|
|
"trans-y4", &tg_tool->trans_info[Y3],
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
tg_tool->trans_info[N_HANDLES] = n_handles;
|
||
|
|
|
||
|
|
PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->widget_changed (tg_tool);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_handle_transform_tool_info_to_points (PikaGenericTransformTool *generic)
|
||
|
|
{
|
||
|
|
PikaTransformGridTool *tg_tool = PIKA_TRANSFORM_GRID_TOOL (generic);
|
||
|
|
|
||
|
|
generic->input_points[0] = (PikaVector2) {tg_tool->trans_info[OX0],
|
||
|
|
tg_tool->trans_info[OY0]};
|
||
|
|
generic->input_points[1] = (PikaVector2) {tg_tool->trans_info[OX1],
|
||
|
|
tg_tool->trans_info[OY1]};
|
||
|
|
generic->input_points[2] = (PikaVector2) {tg_tool->trans_info[OX2],
|
||
|
|
tg_tool->trans_info[OY2]};
|
||
|
|
generic->input_points[3] = (PikaVector2) {tg_tool->trans_info[OX3],
|
||
|
|
tg_tool->trans_info[OY3]};
|
||
|
|
|
||
|
|
generic->output_points[0] = (PikaVector2) {tg_tool->trans_info[X0],
|
||
|
|
tg_tool->trans_info[Y0]};
|
||
|
|
generic->output_points[1] = (PikaVector2) {tg_tool->trans_info[X1],
|
||
|
|
tg_tool->trans_info[Y1]};
|
||
|
|
generic->output_points[2] = (PikaVector2) {tg_tool->trans_info[X2],
|
||
|
|
tg_tool->trans_info[Y2]};
|
||
|
|
generic->output_points[3] = (PikaVector2) {tg_tool->trans_info[X3],
|
||
|
|
tg_tool->trans_info[Y3]};
|
||
|
|
}
|
