mirror of https://github.com/GNOME/gimp.git
453 lines
16 KiB
C
453 lines
16 KiB
C
/* GIMP - The GNU Image Manipulation Program
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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 <http://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 "tools-types.h"
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#include "core/gimpchannel.h"
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#include "core/gimpimage.h"
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#include "core/gimppickable.h"
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#include "paint/gimpsourcecore.h"
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#include "paint/gimpsourceoptions.h"
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#include "widgets/gimpwidgets-utils.h"
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#include "display/gimpcanvashandle.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplayshell-items.h"
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#include "gimpsourcetool.h"
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#include "gimptoolcontrol.h"
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#include "gimp-intl.h"
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static gboolean gimp_source_tool_has_display (GimpTool *tool,
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GimpDisplay *display);
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static GimpDisplay * gimp_source_tool_has_image (GimpTool *tool,
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GimpImage *image);
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static void gimp_source_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display);
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static void gimp_source_tool_button_press (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonPressType press_type,
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GimpDisplay *display);
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static void gimp_source_tool_motion (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_source_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_source_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_source_tool_oper_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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GimpDisplay *display);
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static void gimp_source_tool_draw (GimpDrawTool *draw_tool);
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static void gimp_source_tool_set_src_display (GimpSourceTool *source_tool,
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GimpDisplay *display);
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G_DEFINE_TYPE (GimpSourceTool, gimp_source_tool, GIMP_TYPE_BRUSH_TOOL)
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#define parent_class gimp_source_tool_parent_class
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static void
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gimp_source_tool_class_init (GimpSourceToolClass *klass)
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{
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GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
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GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
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tool_class->has_display = gimp_source_tool_has_display;
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tool_class->has_image = gimp_source_tool_has_image;
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tool_class->control = gimp_source_tool_control;
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tool_class->button_press = gimp_source_tool_button_press;
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tool_class->motion = gimp_source_tool_motion;
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tool_class->modifier_key = gimp_source_tool_modifier_key;
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tool_class->oper_update = gimp_source_tool_oper_update;
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tool_class->cursor_update = gimp_source_tool_cursor_update;
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draw_tool_class->draw = gimp_source_tool_draw;
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}
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static void
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gimp_source_tool_init (GimpSourceTool *source)
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{
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source->show_source_outline = TRUE;
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}
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static gboolean
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gimp_source_tool_has_display (GimpTool *tool,
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GimpDisplay *display)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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return (display == source_tool->src_display ||
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GIMP_TOOL_CLASS (parent_class)->has_display (tool, display));
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}
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static GimpDisplay *
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gimp_source_tool_has_image (GimpTool *tool,
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GimpImage *image)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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GimpDisplay *display;
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display = GIMP_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 && gimp_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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gimp_source_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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switch (action)
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{
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case GIMP_TOOL_ACTION_PAUSE:
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case GIMP_TOOL_ACTION_RESUME:
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break;
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case GIMP_TOOL_ACTION_HALT:
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gimp_source_tool_set_src_display (source_tool, NULL);
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g_object_set (GIMP_PAINT_TOOL (tool)->core,
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"src-drawable", NULL,
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NULL);
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break;
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}
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GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
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}
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static void
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gimp_source_tool_button_press (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpButtonPressType press_type,
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GimpDisplay *display)
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{
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GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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GimpSourceCore *source = GIMP_SOURCE_CORE (paint_tool->core);
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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if ((state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
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{
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source->set_source = TRUE;
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gimp_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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GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
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press_type, display);
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source_tool->src_x = source->src_x;
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source_tool->src_y = source->src_y;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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static void
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gimp_source_tool_motion (GimpTool *tool,
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const GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
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GimpSourceCore *source = GIMP_SOURCE_CORE (paint_tool->core);
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display);
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source_tool->src_x = source->src_x;
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source_tool->src_y = source->src_y;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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static void
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gimp_source_tool_modifier_key (GimpTool *tool,
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GdkModifierType key,
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gboolean press,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
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GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
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if (options->use_source && key == GDK_CONTROL_MASK)
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{
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gimp_draw_tool_pause (GIMP_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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}
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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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}
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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}
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GIMP_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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gimp_source_tool_cursor_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
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GimpCursorType cursor = GIMP_CURSOR_MOUSE;
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GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
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if (options->use_source)
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{
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if ((state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
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{
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cursor = GIMP_CURSOR_CROSSHAIR_SMALL;
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}
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else if (! GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (tool)->core)->src_drawable)
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{
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modifier = GIMP_CURSOR_MODIFIER_BAD;
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}
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}
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gimp_tool_control_set_cursor (tool->control, cursor);
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gimp_tool_control_set_cursor_modifier (tool->control, modifier);
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GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
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}
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static void
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gimp_source_tool_oper_update (GimpTool *tool,
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const GimpCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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GimpDisplay *display)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (tool);
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GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (tool);
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if (proximity)
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{
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GimpPaintTool *paint_tool = GIMP_PAINT_TOOL (tool);
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if (options->use_source)
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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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GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
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display);
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if (options->use_source)
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{
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GimpSourceCore *source = GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (tool)->core);
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if (source->src_drawable == NULL)
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{
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if (state & GDK_CONTROL_MASK)
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{
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gimp_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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gimp_tool_replace_status (tool, display, "%s%s%s",
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gimp_get_mod_name_control (),
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gimp_get_mod_separator (),
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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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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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source_tool->src_x = source->src_x;
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source_tool->src_y = source->src_y;
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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 GIMP_SOURCE_ALIGN_YES:
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source_tool->src_x = coords->x + source->offset_x;
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source_tool->src_y = coords->y + source->offset_y;
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break;
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case GIMP_SOURCE_ALIGN_REGISTERED:
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source_tool->src_x = coords->x;
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source_tool->src_y = 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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gimp_draw_tool_resume (GIMP_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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gimp_source_tool_draw (GimpDrawTool *draw_tool)
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{
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GimpSourceTool *source_tool = GIMP_SOURCE_TOOL (draw_tool);
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GimpSourceOptions *options = GIMP_SOURCE_TOOL_GET_OPTIONS (draw_tool);
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GimpSourceCore *source;
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source = GIMP_SOURCE_CORE (GIMP_PAINT_TOOL (draw_tool)->core);
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GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool);
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if (options->use_source && source->src_drawable && source_tool->src_display)
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{
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GimpDisplayShell *src_shell;
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gint off_x;
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gint off_y;
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src_shell = gimp_display_get_shell (source_tool->src_display);
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gimp_item_get_offset (GIMP_ITEM (source->src_drawable), &off_x, &off_y);
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if (source_tool->src_outline)
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{
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gimp_display_shell_remove_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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gimp_brush_tool_create_outline (GIMP_BRUSH_TOOL (source_tool),
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source_tool->src_display,
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source_tool->src_x + off_x,
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source_tool->src_y + off_y,
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FALSE);
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gimp_display_shell_add_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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if (! source_tool->src_handle)
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{
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source_tool->src_handle =
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gimp_canvas_handle_new (src_shell,
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GIMP_HANDLE_CROSS,
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GIMP_HANDLE_ANCHOR_CENTER,
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source_tool->src_x + off_x,
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source_tool->src_y + off_y,
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GIMP_TOOL_HANDLE_SIZE_CROSS,
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GIMP_TOOL_HANDLE_SIZE_CROSS);
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gimp_display_shell_add_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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gimp_canvas_handle_set_position (source_tool->src_handle,
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source_tool->src_x + off_x,
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source_tool->src_y + off_y);
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}
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}
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}
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static void
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gimp_source_tool_set_src_display (GimpSourceTool *source_tool,
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GimpDisplay *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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GimpDisplayShell *src_shell;
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src_shell = gimp_display_get_shell (source_tool->src_display);
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if (source_tool->src_handle)
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{
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gimp_display_shell_remove_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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if (source_tool->src_outline)
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{
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gimp_display_shell_remove_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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}
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source_tool->src_display = display;
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}
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}
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