333 lines
11 KiB
C
333 lines
11 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 "display/pikadisplay.h"
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#include "display/pikatoolgui.h"
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#include "display/pikatoolsheargrid.h"
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#include "pikasheartool.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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/* index into trans_info array */
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enum
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{
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ORIENTATION,
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SHEAR_X,
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SHEAR_Y
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};
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#define SB_WIDTH 10
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/* local function prototypes */
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static gboolean pika_shear_tool_info_to_matrix (PikaTransformGridTool *tg_tool,
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PikaMatrix3 *transform);
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static gchar * pika_shear_tool_get_undo_desc (PikaTransformGridTool *tg_tool);
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static void pika_shear_tool_dialog (PikaTransformGridTool *tg_tool);
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static void pika_shear_tool_dialog_update (PikaTransformGridTool *tg_tool);
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static void pika_shear_tool_prepare (PikaTransformGridTool *tg_tool);
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static PikaToolWidget * pika_shear_tool_get_widget (PikaTransformGridTool *tg_tool);
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static void pika_shear_tool_update_widget (PikaTransformGridTool *tg_tool);
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static void pika_shear_tool_widget_changed (PikaTransformGridTool *tg_tool);
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static void shear_x_mag_changed (GtkAdjustment *adj,
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PikaTransformGridTool *tg_tool);
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static void shear_y_mag_changed (GtkAdjustment *adj,
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PikaTransformGridTool *tg_tool);
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G_DEFINE_TYPE (PikaShearTool, pika_shear_tool, PIKA_TYPE_TRANSFORM_GRID_TOOL)
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#define parent_class pika_shear_tool_parent_class
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void
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pika_shear_tool_register (PikaToolRegisterCallback callback,
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gpointer data)
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{
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(* callback) (PIKA_TYPE_SHEAR_TOOL,
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PIKA_TYPE_TRANSFORM_GRID_OPTIONS,
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pika_transform_grid_options_gui,
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0,
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"pika-shear-tool",
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_("Shear"),
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_("Shear Tool: Shear the layer, selection or path"),
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N_("S_hear"), "<shift>H",
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NULL, PIKA_HELP_TOOL_SHEAR,
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PIKA_ICON_TOOL_SHEAR,
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data);
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}
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static void
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pika_shear_tool_class_init (PikaShearToolClass *klass)
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{
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PikaTransformToolClass *tr_class = PIKA_TRANSFORM_TOOL_CLASS (klass);
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PikaTransformGridToolClass *tg_class = PIKA_TRANSFORM_GRID_TOOL_CLASS (klass);
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tg_class->info_to_matrix = pika_shear_tool_info_to_matrix;
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tg_class->get_undo_desc = pika_shear_tool_get_undo_desc;
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tg_class->dialog = pika_shear_tool_dialog;
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tg_class->dialog_update = pika_shear_tool_dialog_update;
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tg_class->prepare = pika_shear_tool_prepare;
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tg_class->get_widget = pika_shear_tool_get_widget;
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tg_class->update_widget = pika_shear_tool_update_widget;
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tg_class->widget_changed = pika_shear_tool_widget_changed;
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tr_class->progress_text = C_("undo-type", "Shear");
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tr_class->progress_text = _("Shearing");
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tg_class->ok_button_label = _("_Shear");
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}
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static void
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pika_shear_tool_init (PikaShearTool *shear_tool)
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{
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PikaTool *tool = PIKA_TOOL (shear_tool);
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pika_tool_control_set_tool_cursor (tool->control, PIKA_TOOL_CURSOR_SHEAR);
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}
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static gboolean
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pika_shear_tool_info_to_matrix (PikaTransformGridTool *tg_tool,
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PikaMatrix3 *transform)
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{
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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gdouble amount;
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if (tg_tool->trans_info[SHEAR_X] == 0.0 &&
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tg_tool->trans_info[SHEAR_Y] == 0.0)
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{
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tg_tool->trans_info[ORIENTATION] = PIKA_ORIENTATION_UNKNOWN;
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}
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if (tg_tool->trans_info[ORIENTATION] == PIKA_ORIENTATION_HORIZONTAL)
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amount = tg_tool->trans_info[SHEAR_X];
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else
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amount = tg_tool->trans_info[SHEAR_Y];
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pika_matrix3_identity (transform);
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pika_transform_matrix_shear (transform,
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tr_tool->x1,
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tr_tool->y1,
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tr_tool->x2 - tr_tool->x1,
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tr_tool->y2 - tr_tool->y1,
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tg_tool->trans_info[ORIENTATION],
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amount);
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return TRUE;
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}
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static gchar *
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pika_shear_tool_get_undo_desc (PikaTransformGridTool *tg_tool)
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{
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gdouble x = tg_tool->trans_info[SHEAR_X];
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gdouble y = tg_tool->trans_info[SHEAR_Y];
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switch ((gint) tg_tool->trans_info[ORIENTATION])
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{
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case PIKA_ORIENTATION_HORIZONTAL:
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return g_strdup_printf (C_("undo-type", "Shear horizontally by %-3.3g"),
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x);
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case PIKA_ORIENTATION_VERTICAL:
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return g_strdup_printf (C_("undo-type", "Shear vertically by %-3.3g"),
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y);
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default:
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/* e.g. user entered numbers but no notification callback */
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return g_strdup_printf (C_("undo-type", "Shear horizontally by %-3.3g, vertically by %-3.3g"),
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x, y);
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}
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}
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static void
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pika_shear_tool_dialog (PikaTransformGridTool *tg_tool)
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{
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PikaShearTool *shear = PIKA_SHEAR_TOOL (tg_tool);
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GtkWidget *vbox;
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GtkWidget *scale;
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
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gtk_box_pack_start (GTK_BOX (pika_tool_gui_get_vbox (tg_tool->gui)), vbox,
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FALSE, FALSE, 0);
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gtk_widget_show (vbox);
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shear->x_adj = gtk_adjustment_new (0, -65536, 65536, 1, 10, 0);
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scale = pika_spin_scale_new (shear->x_adj, _("Shear magnitude _X"), 0);
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pika_spin_scale_set_scale_limits (PIKA_SPIN_SCALE (scale), -1000, 1000);
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gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, FALSE, 0);
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gtk_widget_show (scale);
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g_signal_connect (shear->x_adj, "value-changed",
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G_CALLBACK (shear_x_mag_changed),
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tg_tool);
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shear->y_adj = gtk_adjustment_new (0, -65536, 65536, 1, 10, 0);
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scale = pika_spin_scale_new (shear->y_adj, _("Shear magnitude _Y"), 0);
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pika_spin_scale_set_scale_limits (PIKA_SPIN_SCALE (scale), -1000, 1000);
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gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, FALSE, 0);
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gtk_widget_show (scale);
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g_signal_connect (shear->y_adj, "value-changed",
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G_CALLBACK (shear_y_mag_changed),
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tg_tool);
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}
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static void
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pika_shear_tool_dialog_update (PikaTransformGridTool *tg_tool)
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{
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PikaShearTool *shear = PIKA_SHEAR_TOOL (tg_tool);
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gtk_adjustment_set_value (shear->x_adj, tg_tool->trans_info[SHEAR_X]);
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gtk_adjustment_set_value (shear->y_adj, tg_tool->trans_info[SHEAR_Y]);
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}
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static void
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pika_shear_tool_prepare (PikaTransformGridTool *tg_tool)
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{
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tg_tool->trans_info[ORIENTATION] = PIKA_ORIENTATION_UNKNOWN;
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tg_tool->trans_info[SHEAR_X] = 0.0;
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tg_tool->trans_info[SHEAR_Y] = 0.0;
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}
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static PikaToolWidget *
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pika_shear_tool_get_widget (PikaTransformGridTool *tg_tool)
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{
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PikaTool *tool = PIKA_TOOL (tg_tool);
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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PikaDisplayShell *shell = pika_display_get_shell (tool->display);
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PikaToolWidget *widget;
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widget = pika_tool_shear_grid_new (shell,
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tr_tool->x1,
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tr_tool->y1,
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tr_tool->x2,
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tr_tool->y2,
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tg_tool->trans_info[ORIENTATION],
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tg_tool->trans_info[SHEAR_X],
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tg_tool->trans_info[SHEAR_Y]);
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g_object_set (widget,
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"inside-function", PIKA_TRANSFORM_FUNCTION_SHEAR,
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"outside-function", PIKA_TRANSFORM_FUNCTION_SHEAR,
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"frompivot-shear", TRUE,
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NULL);
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return widget;
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}
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static void
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pika_shear_tool_update_widget (PikaTransformGridTool *tg_tool)
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{
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->update_widget (tg_tool);
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g_object_set (tg_tool->widget,
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"x1", (gdouble) tr_tool->x1,
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"y1", (gdouble) tr_tool->y1,
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"x2", (gdouble) tr_tool->x2,
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"y2", (gdouble) tr_tool->y2,
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"orientation", (gint) tg_tool->trans_info[ORIENTATION],
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"shear-x", tg_tool->trans_info[SHEAR_X],
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"shear-y", tg_tool->trans_info[SHEAR_Y],
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NULL);
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}
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static void
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pika_shear_tool_widget_changed (PikaTransformGridTool *tg_tool)
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{
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PikaOrientationType orientation;
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g_object_get (tg_tool->widget,
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"orientation", &orientation,
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"shear-x", &tg_tool->trans_info[SHEAR_X],
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"shear-y", &tg_tool->trans_info[SHEAR_Y],
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NULL);
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tg_tool->trans_info[ORIENTATION] = orientation;
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PIKA_TRANSFORM_GRID_TOOL_CLASS (parent_class)->widget_changed (tg_tool);
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}
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static void
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shear_x_mag_changed (GtkAdjustment *adj,
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PikaTransformGridTool *tg_tool)
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{
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gdouble value = gtk_adjustment_get_value (adj);
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if (value != tg_tool->trans_info[SHEAR_X])
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{
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PikaTool *tool = PIKA_TOOL (tg_tool);
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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tg_tool->trans_info[ORIENTATION] = PIKA_ORIENTATION_HORIZONTAL;
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tg_tool->trans_info[SHEAR_X] = value;
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tg_tool->trans_info[SHEAR_Y] = 0.0; /* can only shear in one axis */
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pika_transform_grid_tool_push_internal_undo (tg_tool, TRUE);
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pika_transform_tool_recalc_matrix (tr_tool, tool->display);
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}
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}
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static void
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shear_y_mag_changed (GtkAdjustment *adj,
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PikaTransformGridTool *tg_tool)
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{
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gdouble value = gtk_adjustment_get_value (adj);
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if (value != tg_tool->trans_info[SHEAR_Y])
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{
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PikaTool *tool = PIKA_TOOL (tg_tool);
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PikaTransformTool *tr_tool = PIKA_TRANSFORM_TOOL (tg_tool);
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tg_tool->trans_info[ORIENTATION] = PIKA_ORIENTATION_VERTICAL;
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tg_tool->trans_info[SHEAR_Y] = value;
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tg_tool->trans_info[SHEAR_X] = 0.0; /* can only shear in one axis */
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pika_transform_grid_tool_push_internal_undo (tg_tool, TRUE);
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pika_transform_tool_recalc_matrix (tr_tool, tool->display);
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}
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}
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