297 lines
11 KiB
C
297 lines
11 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 "display/pikadisplay.h"
|
||
|
|
#include "display/pikadisplayshell.h"
|
||
|
|
#include "display/pikadisplayshell-transform.h"
|
||
|
|
#include "display/pikatoolgui.h"
|
||
|
|
#include "display/pikatooltransformgrid.h"
|
||
|
|
|
||
|
|
#include "pikaperspectivetool.h"
|
||
|
|
#include "pikatoolcontrol.h"
|
||
|
|
#include "pikatransformgridoptions.h"
|
||
|
|
|
||
|
|
#include "pika-intl.h"
|
||
|
|
|
||
|
|
|
||
|
|
/* index into trans_info array */
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
X0,
|
||
|
|
Y0,
|
||
|
|
X1,
|
||
|
|
Y1,
|
||
|
|
X2,
|
||
|
|
Y2,
|
||
|
|
X3,
|
||
|
|
Y3
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* local function prototypes */
|
||
|
|
|
||
|
|
static void pika_perspective_tool_matrix_to_info (PikaTransformGridTool *tg_tool,
|
||
|
|
const PikaMatrix3 *transform);
|
||
|
|
static void pika_perspective_tool_prepare (PikaTransformGridTool *tg_tool);
|
||
|
|
static void pika_perspective_tool_readjust (PikaTransformGridTool *tg_tool);
|
||
|
|
static PikaToolWidget * pika_perspective_tool_get_widget (PikaTransformGridTool *tg_tool);
|
||
|
|
static void pika_perspective_tool_update_widget (PikaTransformGridTool *tg_tool);
|
||
|
|
static void pika_perspective_tool_widget_changed (PikaTransformGridTool *tg_tool);
|
||
|
|
|
||
|
|
static void pika_perspective_tool_info_to_points (PikaGenericTransformTool *generic);
|
||
|
|
|
||
|
|
|
||
|
|
G_DEFINE_TYPE (PikaPerspectiveTool, pika_perspective_tool,
|
||
|
|
PIKA_TYPE_GENERIC_TRANSFORM_TOOL)
|
||
|
|
|
||
|
|
#define parent_class pika_perspective_tool_parent_class
|
||
|
|
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_perspective_tool_register (PikaToolRegisterCallback callback,
|
||
|
|
gpointer data)
|
||
|
|
{
|
||
|
|
(* callback) (PIKA_TYPE_PERSPECTIVE_TOOL,
|
||
|
|
PIKA_TYPE_TRANSFORM_GRID_OPTIONS,
|
||
|
|
pika_transform_grid_options_gui,
|
||
|
|
PIKA_CONTEXT_PROP_MASK_BACKGROUND,
|
||
|
|
"pika-perspective-tool",
|
||
|
|
_("Perspective"),
|
||
|
|
_("Perspective Tool: "
|
||
|
|
"Change perspective of the layer, selection or path"),
|
||
|
|
N_("_Perspective"), "<shift>P",
|
||
|
|
NULL, PIKA_HELP_TOOL_PERSPECTIVE,
|
||
|
|
PIKA_ICON_TOOL_PERSPECTIVE,
|
||
|
|
data);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_class_init (PikaPerspectiveToolClass *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);
|
||
|
|
|
||
|
|
tg_class->matrix_to_info = pika_perspective_tool_matrix_to_info;
|
||
|
|
tg_class->prepare = pika_perspective_tool_prepare;
|
||
|
|
tg_class->readjust = pika_perspective_tool_readjust;
|
||
|
|
tg_class->get_widget = pika_perspective_tool_get_widget;
|
||
|
|
tg_class->update_widget = pika_perspective_tool_update_widget;
|
||
|
|
tg_class->widget_changed = pika_perspective_tool_widget_changed;
|
||
|
|
|
||
|
|
generic_class->info_to_points = pika_perspective_tool_info_to_points;
|
||
|
|
|
||
|
|
tr_class->undo_desc = C_("undo-type", "Perspective");
|
||
|
|
tr_class->progress_text = _("Perspective transformation");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_init (PikaPerspectiveTool *perspective_tool)
|
||
|
|
{
|
||
|
|
PikaTool *tool = PIKA_TOOL (perspective_tool);
|
||
|
|
|
||
|
|
pika_tool_control_set_tool_cursor (tool->control,
|
||
|
|
PIKA_TOOL_CURSOR_PERSPECTIVE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_matrix_to_info (PikaTransformGridTool *tg_tool,
|
||
|
|
const PikaMatrix3 *transform)
|
||
|
|
{
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x1,
|
||
|
|
tr_tool->y1,
|
||
|
|
&tg_tool->trans_info[X0],
|
||
|
|
&tg_tool->trans_info[Y0]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x2,
|
||
|
|
tr_tool->y1,
|
||
|
|
&tg_tool->trans_info[X1],
|
||
|
|
&tg_tool->trans_info[Y1]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x1,
|
||
|
|
tr_tool->y2,
|
||
|
|
&tg_tool->trans_info[X2],
|
||
|
|
&tg_tool->trans_info[Y2]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x2,
|
||
|
|
tr_tool->y2,
|
||
|
|
&tg_tool->trans_info[X3],
|
||
|
|
&tg_tool->trans_info[Y3]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_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;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_readjust (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTool *tool = PIKA_TOOL (tg_tool);
|
||
|
|
PikaDisplayShell *shell = pika_display_get_shell (tool->display);
|
||
|
|
gdouble x;
|
||
|
|
gdouble y;
|
||
|
|
gdouble r;
|
||
|
|
|
||
|
|
x = shell->disp_width / 2.0;
|
||
|
|
y = shell->disp_height / 2.0;
|
||
|
|
r = MAX (MIN (x, y) / G_SQRT2 -
|
||
|
|
PIKA_TOOL_TRANSFORM_GRID_MAX_HANDLE_SIZE / 2.0,
|
||
|
|
PIKA_TOOL_TRANSFORM_GRID_MAX_HANDLE_SIZE / 2.0);
|
||
|
|
|
||
|
|
pika_display_shell_untransform_xy_f (shell,
|
||
|
|
x - r, y - r,
|
||
|
|
&tg_tool->trans_info[X0],
|
||
|
|
&tg_tool->trans_info[Y0]);
|
||
|
|
pika_display_shell_untransform_xy_f (shell,
|
||
|
|
x + r, y - r,
|
||
|
|
&tg_tool->trans_info[X1],
|
||
|
|
&tg_tool->trans_info[Y1]);
|
||
|
|
pika_display_shell_untransform_xy_f (shell,
|
||
|
|
x - r, y + r,
|
||
|
|
&tg_tool->trans_info[X2],
|
||
|
|
&tg_tool->trans_info[Y2]);
|
||
|
|
pika_display_shell_untransform_xy_f (shell,
|
||
|
|
x + r, y + r,
|
||
|
|
&tg_tool->trans_info[X3],
|
||
|
|
&tg_tool->trans_info[Y3]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static PikaToolWidget *
|
||
|
|
pika_perspective_tool_get_widget (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTool *tool = PIKA_TOOL (tg_tool);
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
PikaDisplayShell *shell = pika_display_get_shell (tool->display);
|
||
|
|
PikaToolWidget *widget;
|
||
|
|
|
||
|
|
widget = pika_tool_transform_grid_new (shell,
|
||
|
|
&tr_tool->transform,
|
||
|
|
tr_tool->x1,
|
||
|
|
tr_tool->y1,
|
||
|
|
tr_tool->x2,
|
||
|
|
tr_tool->y2);
|
||
|
|
|
||
|
|
g_object_set (widget,
|
||
|
|
"inside-function", PIKA_TRANSFORM_FUNCTION_PERSPECTIVE,
|
||
|
|
"outside-function", PIKA_TRANSFORM_FUNCTION_PERSPECTIVE,
|
||
|
|
"use-perspective-handles", TRUE,
|
||
|
|
"use-center-handle", TRUE,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
return widget;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_update_widget (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
|
||
|
|
PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->update_widget (tg_tool);
|
||
|
|
|
||
|
|
g_object_set (tg_tool->widget,
|
||
|
|
"x1", (gdouble) tr_tool->x1,
|
||
|
|
"y1", (gdouble) tr_tool->y1,
|
||
|
|
"x2", (gdouble) tr_tool->x2,
|
||
|
|
"y2", (gdouble) tr_tool->y2,
|
||
|
|
NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_widget_changed (PikaTransformGridTool *tg_tool)
|
||
|
|
{
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
|
||
|
|
PikaMatrix3 *transform;
|
||
|
|
|
||
|
|
g_object_get (tg_tool->widget,
|
||
|
|
"transform", &transform,
|
||
|
|
NULL);
|
||
|
|
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x1, tr_tool->y1,
|
||
|
|
&tg_tool->trans_info[X0],
|
||
|
|
&tg_tool->trans_info[Y0]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x2, tr_tool->y1,
|
||
|
|
&tg_tool->trans_info[X1],
|
||
|
|
&tg_tool->trans_info[Y1]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x1, tr_tool->y2,
|
||
|
|
&tg_tool->trans_info[X2],
|
||
|
|
&tg_tool->trans_info[Y2]);
|
||
|
|
pika_matrix3_transform_point (transform,
|
||
|
|
tr_tool->x2, tr_tool->y2,
|
||
|
|
&tg_tool->trans_info[X3],
|
||
|
|
&tg_tool->trans_info[Y3]);
|
||
|
|
|
||
|
|
g_free (transform);
|
||
|
|
|
||
|
|
PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->widget_changed (tg_tool);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_perspective_tool_info_to_points (PikaGenericTransformTool *generic)
|
||
|
|
{
|
||
|
|
PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (generic);
|
||
|
|
PikaTransformGridTool *tg_tool = PIKA_TRANSFORM_GRID_TOOL (generic);
|
||
|
|
|
||
|
|
generic->input_points[0] = (PikaVector2) {tr_tool->x1, tr_tool->y1};
|
||
|
|
generic->input_points[1] = (PikaVector2) {tr_tool->x2, tr_tool->y1};
|
||
|
|
generic->input_points[2] = (PikaVector2) {tr_tool->x1, tr_tool->y2};
|
||
|
|
generic->input_points[3] = (PikaVector2) {tr_tool->x2, tr_tool->y2};
|
||
|
|
|
||
|
|
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]};
|
||
|
|
}
|
