175 lines
6.3 KiB
C
175 lines
6.3 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikamath/pikamath.h"
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#include "libpikawidgets/pikawidgets.h"
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#include "tools-types.h"
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#include "core/pika-transform-utils.h"
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#include "widgets/pikahelp-ids.h"
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#include "widgets/pikawidgets-utils.h"
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#include "display/pikadisplay.h"
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#include "display/pikatoolgui.h"
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#include "pikagenerictransformtool.h"
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#include "pikatoolcontrol.h"
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#include "pikatransformgridoptions.h"
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#include "pika-intl.h"
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/* local function prototypes */
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static gboolean pika_generic_transform_tool_info_to_matrix (PikaTransformGridTool *tg_tool,
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PikaMatrix3 *transform);
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static void pika_generic_transform_tool_dialog (PikaTransformGridTool *tg_tool);
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static void pika_generic_transform_tool_dialog_update (PikaTransformGridTool *tg_tool);
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static void pika_generic_transform_tool_prepare (PikaTransformGridTool *tg_tool);
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G_DEFINE_TYPE (PikaGenericTransformTool, pika_generic_transform_tool,
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PIKA_TYPE_TRANSFORM_GRID_TOOL)
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#define parent_class pika_generic_transform_tool_parent_class
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static void
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pika_generic_transform_tool_class_init (PikaGenericTransformToolClass *klass)
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{
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PikaTransformGridToolClass *tg_class = PIKA_TRANSFORM_GRID_TOOL_CLASS (klass);
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tg_class->info_to_matrix = pika_generic_transform_tool_info_to_matrix;
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tg_class->dialog = pika_generic_transform_tool_dialog;
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tg_class->dialog_update = pika_generic_transform_tool_dialog_update;
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tg_class->prepare = pika_generic_transform_tool_prepare;
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}
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static void
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pika_generic_transform_tool_init (PikaGenericTransformTool *unified_tool)
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{
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}
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static gboolean
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pika_generic_transform_tool_info_to_matrix (PikaTransformGridTool *tg_tool,
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PikaMatrix3 *transform)
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{
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PikaGenericTransformTool *generic = PIKA_GENERIC_TRANSFORM_TOOL (tg_tool);
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if (PIKA_GENERIC_TRANSFORM_TOOL_GET_CLASS (generic)->info_to_points)
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PIKA_GENERIC_TRANSFORM_TOOL_GET_CLASS (generic)->info_to_points (generic);
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pika_matrix3_identity (transform);
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return pika_transform_matrix_generic (transform,
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generic->input_points,
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generic->output_points);
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}
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static void
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pika_generic_transform_tool_dialog (PikaTransformGridTool *tg_tool)
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{
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PikaGenericTransformTool *generic = PIKA_GENERIC_TRANSFORM_TOOL (tg_tool);
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GtkWidget *frame;
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GtkWidget *vbox;
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GtkWidget *label;
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GtkSizeGroup *size_group;
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frame = pika_frame_new (_("Transform Matrix"));
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gtk_box_pack_start (GTK_BOX (pika_tool_gui_get_vbox (tg_tool->gui)), frame,
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FALSE, FALSE, 0);
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gtk_widget_show (frame);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add (GTK_CONTAINER (frame), vbox);
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gtk_widget_show (vbox);
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size_group = gtk_size_group_new (GTK_SIZE_GROUP_BOTH);
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label = generic->matrix_label = gtk_label_new (" ");
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gtk_size_group_add_widget (size_group, label);
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gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
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pika_label_set_attributes (GTK_LABEL (label), PANGO_ATTR_SCALE, PANGO_SCALE_SMALL, -1);
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gtk_label_set_selectable (GTK_LABEL (label), TRUE);
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gtk_widget_show (label);
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label = generic->invalid_label = gtk_label_new (_("Invalid transform"));
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pika_label_set_attributes (GTK_LABEL (label),
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PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
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-1);
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gtk_size_group_add_widget (size_group, label);
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gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
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g_object_unref (size_group);
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}
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static void
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pika_generic_transform_tool_dialog_update (PikaTransformGridTool *tg_tool)
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{
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PikaGenericTransformTool *generic = PIKA_GENERIC_TRANSFORM_TOOL (tg_tool);
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PikaMatrix3 transform;
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gboolean transform_valid;
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transform_valid = pika_transform_grid_tool_info_to_matrix (tg_tool,
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&transform);
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if (transform_valid)
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{
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gchar buf[256];
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gtk_widget_show (generic->matrix_label);
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gtk_widget_hide (generic->invalid_label);
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g_snprintf (buf, sizeof (buf), "<tt>% 11.4f\t% 11.4f\t% 11.4f\n% 11.4f\t% 11.4f"
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"\t% 11.4f\n% 11.4f\t% 11.4f\t% 11.4f</tt>",
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transform.coeff[0][0], transform.coeff[0][1], transform.coeff[0][2],
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transform.coeff[1][0], transform.coeff[1][1], transform.coeff[1][2],
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transform.coeff[2][0], transform.coeff[2][1], transform.coeff[2][2]);
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gtk_label_set_markup (GTK_LABEL (generic->matrix_label), buf);
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}
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else
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{
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gtk_widget_show (generic->invalid_label);
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gtk_widget_hide (generic->matrix_label);
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}
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}
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static void
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pika_generic_transform_tool_prepare (PikaTransformGridTool *tg_tool)
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{
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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PikaGenericTransformTool *generic = PIKA_GENERIC_TRANSFORM_TOOL (tg_tool);
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generic->input_points[0] = (PikaVector2) {tr_tool->x1, tr_tool->y1};
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generic->input_points[1] = (PikaVector2) {tr_tool->x2, tr_tool->y1};
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generic->input_points[2] = (PikaVector2) {tr_tool->x1, tr_tool->y2};
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generic->input_points[3] = (PikaVector2) {tr_tool->x2, tr_tool->y2};
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memcpy (generic->output_points, generic->input_points,
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sizeof (generic->input_points));
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}
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