531 lines
19 KiB
C
531 lines
19 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/pikachannel.h"
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#include "core/pikaimage.h"
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#include "core/pikapickable.h"
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#include "paint/pikasourcecore.h"
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#include "paint/pikasourceoptions.h"
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#include "widgets/pikawidgets-utils.h"
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#include "display/pikacanvashandle.h"
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#include "display/pikadisplay.h"
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#include "display/pikadisplayshell.h"
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#include "display/pikadisplayshell-items.h"
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#include "pikasourcetool.h"
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#include "pikatoolcontrol.h"
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#include "pika-intl.h"
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static gboolean pika_source_tool_has_display (PikaTool *tool,
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PikaDisplay *display);
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static PikaDisplay * pika_source_tool_has_image (PikaTool *tool,
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PikaImage *image);
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static void pika_source_tool_control (PikaTool *tool,
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PikaToolAction action,
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PikaDisplay *display);
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static void pika_source_tool_button_press (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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PikaButtonPressType press_type,
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PikaDisplay *display);
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static void pika_source_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_source_tool_cursor_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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PikaDisplay *display);
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static void pika_source_tool_modifier_key (PikaTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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PikaDisplay *display);
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static void pika_source_tool_oper_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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PikaDisplay *display);
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static void pika_source_tool_draw (PikaDrawTool *draw_tool);
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static void pika_source_tool_paint_prepare (PikaPaintTool *paint_tool,
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PikaDisplay *display);
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static void pika_source_tool_set_src_display (PikaSourceTool *source_tool,
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PikaDisplay *display);
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G_DEFINE_TYPE (PikaSourceTool, pika_source_tool, PIKA_TYPE_BRUSH_TOOL)
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#define parent_class pika_source_tool_parent_class
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static void
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pika_source_tool_class_init (PikaSourceToolClass *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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PikaPaintToolClass *paint_tool_class = PIKA_PAINT_TOOL_CLASS (klass);
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tool_class->has_display = pika_source_tool_has_display;
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tool_class->has_image = pika_source_tool_has_image;
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tool_class->control = pika_source_tool_control;
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tool_class->button_press = pika_source_tool_button_press;
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tool_class->motion = pika_source_tool_motion;
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tool_class->modifier_key = pika_source_tool_modifier_key;
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tool_class->oper_update = pika_source_tool_oper_update;
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tool_class->cursor_update = pika_source_tool_cursor_update;
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draw_tool_class->draw = pika_source_tool_draw;
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paint_tool_class->paint_prepare = pika_source_tool_paint_prepare;
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}
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static void
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pika_source_tool_init (PikaSourceTool *source)
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{
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source->show_source_outline = TRUE;
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pika_paint_tool_enable_multi_paint (PIKA_PAINT_TOOL (source));
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}
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static gboolean
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pika_source_tool_has_display (PikaTool *tool,
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PikaDisplay *display)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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return (display == source_tool->src_display ||
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PIKA_TOOL_CLASS (parent_class)->has_display (tool, display));
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}
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static PikaDisplay *
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pika_source_tool_has_image (PikaTool *tool,
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PikaImage *image)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaDisplay *display;
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display = PIKA_TOOL_CLASS (parent_class)->has_image (tool, image);
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if (! display && source_tool->src_display)
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{
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if (image && pika_display_get_image (source_tool->src_display) == image)
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display = source_tool->src_display;
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/* NULL image means any display */
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if (! image)
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display = source_tool->src_display;
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}
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return display;
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}
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static void
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pika_source_tool_control (PikaTool *tool,
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PikaToolAction action,
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PikaDisplay *display)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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switch (action)
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{
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case PIKA_TOOL_ACTION_PAUSE:
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case PIKA_TOOL_ACTION_RESUME:
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break;
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case PIKA_TOOL_ACTION_HALT:
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pika_source_tool_set_src_display (source_tool, NULL);
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g_object_set (options,
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"src-drawables", NULL,
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"src-x", 0,
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"src-y", 0,
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NULL);
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break;
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case PIKA_TOOL_ACTION_COMMIT:
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break;
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}
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PIKA_TOOL_CLASS (parent_class)->control (tool, action, display);
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}
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static void
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pika_source_tool_button_press (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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PikaButtonPressType press_type,
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PikaDisplay *display)
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{
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PikaPaintTool *paint_tool = PIKA_PAINT_TOOL (tool);
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaSourceCore *source = PIKA_SOURCE_CORE (paint_tool->core);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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GdkModifierType extend_mask = pika_get_extend_selection_mask ();
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GdkModifierType toggle_mask = pika_get_toggle_behavior_mask ();
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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if ((state & (toggle_mask | extend_mask)) == toggle_mask)
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{
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source->set_source = TRUE;
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pika_source_tool_set_src_display (source_tool, display);
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}
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else
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{
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source->set_source = FALSE;
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}
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PIKA_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
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press_type, display);
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g_object_get (options,
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"src-x", &source_tool->src_x,
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"src-y", &source_tool->src_y,
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NULL);
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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}
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static void
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pika_source_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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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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PIKA_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display);
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g_object_get (options,
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"src-x", &source_tool->src_x,
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"src-y", &source_tool->src_y,
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NULL);
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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}
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static void
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pika_source_tool_modifier_key (PikaTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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PikaDisplay *display)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaPaintTool *paint_tool = PIKA_PAINT_TOOL (tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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if (pika_source_core_use_source (PIKA_SOURCE_CORE (paint_tool->core),
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options) &&
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key == pika_get_toggle_behavior_mask ())
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{
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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if (press)
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{
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paint_tool->status = source_tool->status_set_source;
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source_tool->show_source_outline = FALSE;
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source_tool->saved_precision =
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pika_tool_control_get_precision (tool->control);
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pika_tool_control_set_precision (tool->control,
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PIKA_CURSOR_PRECISION_PIXEL_CENTER);
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}
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else
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{
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paint_tool->status = source_tool->status_paint;
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source_tool->show_source_outline = TRUE;
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pika_tool_control_set_precision (tool->control,
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source_tool->saved_precision);
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}
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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}
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PIKA_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state,
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display);
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}
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static void
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pika_source_tool_cursor_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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PikaDisplay *display)
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{
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PikaPaintTool *paint_tool = PIKA_PAINT_TOOL (tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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PikaCursorType cursor = PIKA_CURSOR_MOUSE;
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PikaCursorModifier modifier = PIKA_CURSOR_MODIFIER_NONE;
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if (pika_source_core_use_source (PIKA_SOURCE_CORE (paint_tool->core),
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options))
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{
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GdkModifierType extend_mask = pika_get_extend_selection_mask ();
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GdkModifierType toggle_mask = pika_get_toggle_behavior_mask ();
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if ((state & (toggle_mask | extend_mask)) == toggle_mask)
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{
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cursor = PIKA_CURSOR_CROSSHAIR_SMALL;
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}
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else if (! options->src_drawables)
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{
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modifier = PIKA_CURSOR_MODIFIER_BAD;
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}
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}
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pika_tool_control_set_cursor (tool->control, cursor);
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pika_tool_control_set_cursor_modifier (tool->control, modifier);
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PIKA_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
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}
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static void
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pika_source_tool_oper_update (PikaTool *tool,
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const PikaCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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PikaDisplay *display)
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{
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PikaPaintTool *paint_tool = PIKA_PAINT_TOOL (tool);
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (tool);
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PikaSourceCore *source;
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source = PIKA_SOURCE_CORE (PIKA_PAINT_TOOL (tool)->core);
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if (proximity)
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{
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if (pika_source_core_use_source (source, options))
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paint_tool->status_ctrl = source_tool->status_set_source_ctrl;
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else
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paint_tool->status_ctrl = NULL;
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}
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PIKA_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
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display);
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if (pika_source_core_use_source (source, options))
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{
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if (options->src_drawables == NULL)
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{
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GdkModifierType toggle_mask = pika_get_toggle_behavior_mask ();
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if (state & toggle_mask)
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{
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pika_tool_replace_status (tool, display, "%s",
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source_tool->status_set_source);
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}
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else
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{
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pika_tool_replace_status (tool, display, "%s-%s",
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pika_get_mod_string (toggle_mask),
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source_tool->status_set_source);
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}
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}
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else
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{
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pika_draw_tool_pause (PIKA_DRAW_TOOL (tool));
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g_object_get (options,
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"src-x", &source_tool->src_x,
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"src-y", &source_tool->src_y,
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NULL);
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if (! source->first_stroke)
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{
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switch (options->align_mode)
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{
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case PIKA_SOURCE_ALIGN_YES:
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source_tool->src_x = floor (coords->x) + source->offset_x;
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source_tool->src_y = floor (coords->y) + source->offset_y;
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break;
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case PIKA_SOURCE_ALIGN_REGISTERED:
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source_tool->src_x = floor (coords->x);
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source_tool->src_y = floor (coords->y);
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break;
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default:
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break;
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}
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}
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pika_draw_tool_resume (PIKA_DRAW_TOOL (tool));
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}
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}
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}
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static void
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pika_source_tool_draw (PikaDrawTool *draw_tool)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (draw_tool);
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PikaSourceOptions *options = PIKA_SOURCE_TOOL_GET_OPTIONS (draw_tool);
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PikaSourceCore *source;
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source = PIKA_SOURCE_CORE (PIKA_PAINT_TOOL (draw_tool)->core);
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PIKA_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
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if (pika_source_core_use_source (source, options) &&
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options->src_drawables && source_tool->src_display)
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{
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PikaDisplayShell *src_shell;
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gdouble src_x;
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gdouble src_y;
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src_shell = pika_display_get_shell (source_tool->src_display);
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src_x = (gdouble) source_tool->src_x + 0.5;
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src_y = (gdouble) source_tool->src_y + 0.5;
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if (source_tool->src_outline)
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{
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pika_display_shell_remove_tool_item (src_shell,
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source_tool->src_outline);
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source_tool->src_outline = NULL;
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}
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if (source_tool->show_source_outline)
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{
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source_tool->src_outline =
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pika_brush_tool_create_outline (PIKA_BRUSH_TOOL (source_tool),
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source_tool->src_display,
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src_x, src_y);
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if (source_tool->src_outline)
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{
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pika_display_shell_add_tool_item (src_shell,
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source_tool->src_outline);
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g_object_unref (source_tool->src_outline);
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}
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}
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if (source_tool->src_outline)
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{
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if (source_tool->src_handle)
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{
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pika_display_shell_remove_tool_item (src_shell,
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source_tool->src_handle);
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source_tool->src_handle = NULL;
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}
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}
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else
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{
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if (! source_tool->src_handle)
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{
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source_tool->src_handle =
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pika_canvas_handle_new (src_shell,
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PIKA_HANDLE_CROSS,
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PIKA_HANDLE_ANCHOR_CENTER,
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src_x, src_y,
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PIKA_TOOL_HANDLE_SIZE_CROSS,
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PIKA_TOOL_HANDLE_SIZE_CROSS);
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pika_display_shell_add_tool_item (src_shell,
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source_tool->src_handle);
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g_object_unref (source_tool->src_handle);
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}
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else
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{
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pika_canvas_handle_set_position (source_tool->src_handle,
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src_x, src_y);
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}
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}
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}
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}
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|
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static void
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pika_source_tool_paint_prepare (PikaPaintTool *paint_tool,
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PikaDisplay *display)
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{
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PikaSourceTool *source_tool = PIKA_SOURCE_TOOL (paint_tool);
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if (PIKA_PAINT_TOOL_CLASS (parent_class)->paint_prepare)
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PIKA_PAINT_TOOL_CLASS (parent_class)->paint_prepare (paint_tool, display);
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if (source_tool->src_display)
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{
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PikaDisplayShell *src_shell;
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src_shell = pika_display_get_shell (source_tool->src_display);
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pika_paint_core_set_show_all (paint_tool->core, src_shell->show_all);
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}
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}
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|
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static void
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pika_source_tool_set_src_display (PikaSourceTool *source_tool,
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PikaDisplay *display)
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{
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if (source_tool->src_display != display)
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{
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if (source_tool->src_display)
|
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{
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PikaDisplayShell *src_shell;
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|
|
src_shell = pika_display_get_shell (source_tool->src_display);
|
|
|
|
if (source_tool->src_handle)
|
|
{
|
|
pika_display_shell_remove_tool_item (src_shell,
|
|
source_tool->src_handle);
|
|
source_tool->src_handle = NULL;
|
|
}
|
|
|
|
if (source_tool->src_outline)
|
|
{
|
|
pika_display_shell_remove_tool_item (src_shell,
|
|
source_tool->src_outline);
|
|
source_tool->src_outline = NULL;
|
|
}
|
|
}
|
|
|
|
source_tool->src_display = display;
|
|
}
|
|
}
|
