378 lines
14 KiB
C
378 lines
14 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 "tools-types.h"
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#include "core/pika.h"
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#include "core/pikasamplepoint.h"
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#include "core/pikaimage.h"
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#include "core/pikaimage-sample-points.h"
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#include "display/pikadisplay.h"
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#include "display/pikadisplayshell.h"
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#include "display/pikadisplayshell-selection.h"
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#include "display/pikadisplayshell-transform.h"
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#include "pikasamplepointtool.h"
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#include "pikatoolcontrol.h"
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#include "tool_manager.h"
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#include "pika-intl.h"
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/* local function prototypes */
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static void pika_sample_point_tool_button_release (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonReleaseType release_type,
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PikaDisplay *display);
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static void pika_sample_point_tool_motion (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaDisplay *display);
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static void pika_sample_point_tool_draw (PikaDrawTool *draw_tool);
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static void pika_sample_point_tool_start (PikaTool *parent_tool,
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PikaDisplay *display,
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PikaSamplePoint *sample_point);
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G_DEFINE_TYPE (PikaSamplePointTool, pika_sample_point_tool, PIKA_TYPE_DRAW_TOOL)
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#define parent_class pika_sample_point_tool_parent_class
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static void
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pika_sample_point_tool_class_init (PikaSamplePointToolClass *klass)
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{
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PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
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PikaDrawToolClass *draw_tool_class = PIKA_DRAW_TOOL_CLASS (klass);
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tool_class->button_release = pika_sample_point_tool_button_release;
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tool_class->motion = pika_sample_point_tool_motion;
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draw_tool_class->draw = pika_sample_point_tool_draw;
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}
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static void
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pika_sample_point_tool_init (PikaSamplePointTool *sp_tool)
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{
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PikaTool *tool = PIKA_TOOL (sp_tool);
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pika_tool_control_set_snap_to (tool->control, FALSE);
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pika_tool_control_set_handle_empty_image (tool->control, TRUE);
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pika_tool_control_set_tool_cursor (tool->control,
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PIKA_TOOL_CURSOR_MOVE);
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pika_tool_control_set_scroll_lock (tool->control, TRUE);
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pika_tool_control_set_precision (tool->control,
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PIKA_CURSOR_PRECISION_PIXEL_CENTER);
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sp_tool->sample_point = NULL;
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sp_tool->sample_point_x = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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}
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static void
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pika_sample_point_tool_button_release (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaButtonReleaseType release_type,
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PikaDisplay *display)
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{
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PikaSamplePointTool *sp_tool = PIKA_SAMPLE_POINT_TOOL (tool);
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PikaDisplayShell *shell = pika_display_get_shell (display);
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PikaImage *image = pika_display_get_image (display);
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pika_tool_pop_status (tool, display);
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pika_tool_control_halt (tool->control);
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pika_draw_tool_stop (PIKA_DRAW_TOOL (tool));
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if (release_type != PIKA_BUTTON_RELEASE_CANCEL)
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{
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gint width = pika_image_get_width (image);
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gint height = pika_image_get_height (image);
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if (sp_tool->sample_point_x == PIKA_SAMPLE_POINT_POSITION_UNDEFINED ||
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sp_tool->sample_point_x < 0 ||
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sp_tool->sample_point_x >= width ||
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sp_tool->sample_point_y == PIKA_SAMPLE_POINT_POSITION_UNDEFINED ||
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sp_tool->sample_point_y < 0 ||
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sp_tool->sample_point_y >= height)
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{
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if (sp_tool->sample_point)
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{
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pika_image_remove_sample_point (image,
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sp_tool->sample_point, TRUE);
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sp_tool->sample_point = NULL;
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}
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}
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else
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{
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if (sp_tool->sample_point)
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{
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pika_image_move_sample_point (image,
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sp_tool->sample_point,
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sp_tool->sample_point_x,
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sp_tool->sample_point_y,
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TRUE);
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}
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else
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{
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sp_tool->sample_point =
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pika_image_add_sample_point_at_pos (image,
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sp_tool->sample_point_x,
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sp_tool->sample_point_y,
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TRUE);
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}
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}
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pika_image_flush (image);
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}
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pika_display_shell_selection_resume (shell);
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sp_tool->sample_point_x = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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tool_manager_pop_tool (display->pika);
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g_object_unref (sp_tool);
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{
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PikaTool *active_tool = tool_manager_get_active (display->pika);
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if (PIKA_IS_DRAW_TOOL (active_tool))
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pika_draw_tool_pause (PIKA_DRAW_TOOL (active_tool));
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tool_manager_oper_update_active (display->pika, coords, state,
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TRUE, display);
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tool_manager_cursor_update_active (display->pika, coords, state,
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display);
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if (PIKA_IS_DRAW_TOOL (active_tool))
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pika_draw_tool_resume (PIKA_DRAW_TOOL (active_tool));
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}
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}
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static void
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pika_sample_point_tool_motion (PikaTool *tool,
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const PikaCoords *coords,
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guint32 time,
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GdkModifierType state,
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PikaDisplay *display)
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{
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PikaSamplePointTool *sp_tool = PIKA_SAMPLE_POINT_TOOL (tool);
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PikaDisplayShell *shell = pika_display_get_shell (display);
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gboolean delete_point = FALSE;
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gint tx, ty;
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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pika_display_shell_transform_xy (shell,
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coords->x, coords->y,
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&tx, &ty);
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if (tx < 0 || tx >= shell->disp_width ||
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ty < 0 || ty >= shell->disp_height)
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{
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sp_tool->sample_point_x = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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delete_point = TRUE;
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}
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else
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{
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PikaImage *image = pika_display_get_image (display);
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gint width = pika_image_get_width (image);
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gint height = pika_image_get_height (image);
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sp_tool->sample_point_x = floor (coords->x);
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sp_tool->sample_point_y = floor (coords->y);
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if (sp_tool->sample_point_x < 0 ||
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sp_tool->sample_point_x >= height ||
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sp_tool->sample_point_y < 0 ||
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sp_tool->sample_point_y >= width)
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{
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delete_point = TRUE;
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}
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}
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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pika_tool_pop_status (tool, display);
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if (delete_point)
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{
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pika_tool_push_status (tool, display,
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sp_tool->sample_point ?
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_("Remove Sample Point") :
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_("Cancel Sample Point"));
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}
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else if (sp_tool->sample_point)
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{
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pika_tool_push_status_coords (tool, display,
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pika_tool_control_get_precision (tool->control),
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_("Move Sample Point: "),
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sp_tool->sample_point_x -
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sp_tool->sample_point_old_x,
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", ",
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sp_tool->sample_point_y -
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sp_tool->sample_point_old_y,
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NULL);
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}
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else
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{
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pika_tool_push_status_coords (tool, display,
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pika_tool_control_get_precision (tool->control),
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_("Add Sample Point: "),
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sp_tool->sample_point_x,
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", ",
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sp_tool->sample_point_y,
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NULL);
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}
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}
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static void
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pika_sample_point_tool_draw (PikaDrawTool *draw_tool)
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{
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PikaSamplePointTool *sp_tool = PIKA_SAMPLE_POINT_TOOL (draw_tool);
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if (sp_tool->sample_point_x != PIKA_SAMPLE_POINT_POSITION_UNDEFINED &&
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sp_tool->sample_point_y != PIKA_SAMPLE_POINT_POSITION_UNDEFINED)
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{
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pika_draw_tool_add_crosshair (draw_tool,
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sp_tool->sample_point_x,
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sp_tool->sample_point_y);
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}
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}
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static void
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pika_sample_point_tool_start (PikaTool *parent_tool,
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PikaDisplay *display,
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PikaSamplePoint *sample_point)
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{
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PikaSamplePointTool *sp_tool;
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PikaTool *tool;
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sp_tool = g_object_new (PIKA_TYPE_SAMPLE_POINT_TOOL,
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"tool-info", parent_tool->tool_info,
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NULL);
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tool = PIKA_TOOL (sp_tool);
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pika_display_shell_selection_pause (pika_display_get_shell (display));
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if (sample_point)
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{
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sp_tool->sample_point = sample_point;
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pika_sample_point_get_position (sample_point,
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&sp_tool->sample_point_old_x,
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&sp_tool->sample_point_old_y);
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sp_tool->sample_point_x = sp_tool->sample_point_old_x;
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sp_tool->sample_point_y = sp_tool->sample_point_old_y;
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}
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else
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{
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sp_tool->sample_point = NULL;
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sp_tool->sample_point_old_x = 0;
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sp_tool->sample_point_old_y = 0;
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sp_tool->sample_point_x = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = PIKA_SAMPLE_POINT_POSITION_UNDEFINED;
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}
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pika_tool_set_cursor (tool, display,
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PIKA_CURSOR_MOUSE,
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PIKA_TOOL_CURSOR_COLOR_PICKER,
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PIKA_CURSOR_MODIFIER_MOVE);
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tool_manager_push_tool (display->pika, tool);
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tool->display = display;
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pika_tool_control_activate (tool->control);
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pika_draw_tool_start (PIKA_DRAW_TOOL (sp_tool), display);
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if (sp_tool->sample_point)
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{
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pika_tool_push_status_coords (tool, display,
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pika_tool_control_get_precision (tool->control),
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_("Move Sample Point: "),
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sp_tool->sample_point_x -
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sp_tool->sample_point_old_x,
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", ",
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sp_tool->sample_point_y -
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sp_tool->sample_point_old_y,
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NULL);
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}
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else
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{
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pika_tool_push_status_coords (tool, display,
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pika_tool_control_get_precision (tool->control),
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_("Add Sample Point: "),
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sp_tool->sample_point_x,
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", ",
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sp_tool->sample_point_y,
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NULL);
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}
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}
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/* public functions */
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void
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pika_sample_point_tool_start_new (PikaTool *parent_tool,
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PikaDisplay *display)
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{
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g_return_if_fail (PIKA_IS_TOOL (parent_tool));
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g_return_if_fail (PIKA_IS_DISPLAY (display));
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pika_sample_point_tool_start (parent_tool, display, NULL);
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}
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void
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pika_sample_point_tool_start_edit (PikaTool *parent_tool,
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PikaDisplay *display,
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PikaSamplePoint *sample_point)
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{
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g_return_if_fail (PIKA_IS_TOOL (parent_tool));
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g_return_if_fail (PIKA_IS_DISPLAY (display));
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g_return_if_fail (PIKA_IS_SAMPLE_POINT (sample_point));
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pika_sample_point_tool_start (parent_tool, display, sample_point);
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}
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