mirror of https://github.com/GNOME/gimp.git
377 lines
13 KiB
C
377 lines
13 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 "libgimpmath/gimpmath.h"
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#include "tools-types.h"
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#include "core/gimp.h"
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#include "core/gimpsamplepoint.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-sample-points.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplayshell.h"
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#include "display/gimpdisplayshell-selection.h"
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#include "display/gimpdisplayshell-transform.h"
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#include "gimpsamplepointtool.h"
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#include "gimptoolcontrol.h"
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#include "tool_manager.h"
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#include "gimp-intl.h"
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#define GIMP_SAMPLE_POINT_POSITION_UNDEFINED G_MININT
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/* local function prototypes */
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static void gimp_sample_point_tool_button_release (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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GimpButtonReleaseType release_type,
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GimpDisplay *display);
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static void gimp_sample_point_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_sample_point_tool_draw (GimpDrawTool *draw_tool);
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static void gimp_sample_point_tool_start (GimpTool *parent_tool,
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GimpDisplay *display,
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GimpSamplePoint *sample_point);
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G_DEFINE_TYPE (GimpSamplePointTool, gimp_sample_point_tool, GIMP_TYPE_DRAW_TOOL)
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#define parent_class gimp_sample_point_tool_parent_class
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static void
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gimp_sample_point_tool_class_init (GimpSamplePointToolClass *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->button_release = gimp_sample_point_tool_button_release;
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tool_class->motion = gimp_sample_point_tool_motion;
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draw_tool_class->draw = gimp_sample_point_tool_draw;
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}
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static void
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gimp_sample_point_tool_init (GimpSamplePointTool *sp_tool)
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{
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GimpTool *tool = GIMP_TOOL (sp_tool);
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gimp_tool_control_set_snap_to (tool->control, FALSE);
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gimp_tool_control_set_handle_empty_image (tool->control, TRUE);
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gimp_tool_control_set_tool_cursor (tool->control,
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GIMP_TOOL_CURSOR_MOVE);
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gimp_tool_control_set_scroll_lock (tool->control, TRUE);
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gimp_tool_control_set_precision (tool->control,
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GIMP_CURSOR_PRECISION_PIXEL_CENTER);
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sp_tool->sample_point = NULL;
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sp_tool->sample_point_x = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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}
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static void
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gimp_sample_point_tool_button_release (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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GimpButtonReleaseType release_type,
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GimpDisplay *display)
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{
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GimpSamplePointTool *sp_tool = GIMP_SAMPLE_POINT_TOOL (tool);
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GimpDisplayShell *shell = gimp_display_get_shell (display);
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GimpImage *image = gimp_display_get_image (display);
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gimp_tool_pop_status (tool, display);
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gimp_tool_control_halt (tool->control);
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gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
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if (release_type != GIMP_BUTTON_RELEASE_CANCEL)
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{
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gint width = gimp_image_get_width (image);
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gint height = gimp_image_get_height (image);
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if (sp_tool->sample_point_x == GIMP_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 == GIMP_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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gimp_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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gimp_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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gimp_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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gimp_image_flush (image);
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}
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gimp_display_shell_selection_resume (shell);
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sp_tool->sample_point_x = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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tool_manager_pop_tool (display->gimp);
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g_object_unref (sp_tool);
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{
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GimpTool *active_tool = tool_manager_get_active (display->gimp);
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if (GIMP_IS_DRAW_TOOL (active_tool))
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (active_tool));
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tool_manager_oper_update_active (display->gimp, coords, state,
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TRUE, display);
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tool_manager_cursor_update_active (display->gimp, coords, state,
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display);
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if (GIMP_IS_DRAW_TOOL (active_tool))
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (active_tool));
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}
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}
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static void
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gimp_sample_point_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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GimpSamplePointTool *sp_tool = GIMP_SAMPLE_POINT_TOOL (tool);
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GimpDisplayShell *shell = gimp_display_get_shell (display);
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gboolean delete_point = FALSE;
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gint tx, ty;
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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gimp_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 = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = GIMP_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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GimpImage *image = gimp_display_get_image (display);
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gint width = gimp_image_get_width (image);
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gint height = gimp_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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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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gimp_tool_pop_status (tool, display);
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if (delete_point)
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{
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gimp_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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gimp_tool_push_status_coords (tool, display,
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gimp_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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gimp_tool_push_status_coords (tool, display,
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gimp_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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gimp_sample_point_tool_draw (GimpDrawTool *draw_tool)
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{
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GimpSamplePointTool *sp_tool = GIMP_SAMPLE_POINT_TOOL (draw_tool);
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if (sp_tool->sample_point_x != GIMP_SAMPLE_POINT_POSITION_UNDEFINED &&
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sp_tool->sample_point_y != GIMP_SAMPLE_POINT_POSITION_UNDEFINED)
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{
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gimp_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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gimp_sample_point_tool_start (GimpTool *parent_tool,
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GimpDisplay *display,
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GimpSamplePoint *sample_point)
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{
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GimpSamplePointTool *sp_tool;
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GimpTool *tool;
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sp_tool = g_object_new (GIMP_TYPE_SAMPLE_POINT_TOOL,
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"tool-info", parent_tool->tool_info,
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NULL);
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tool = GIMP_TOOL (sp_tool);
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gimp_display_shell_selection_pause (gimp_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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gimp_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 = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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sp_tool->sample_point_y = GIMP_SAMPLE_POINT_POSITION_UNDEFINED;
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}
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gimp_tool_set_cursor (tool, display,
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GIMP_CURSOR_MOUSE,
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GIMP_TOOL_CURSOR_COLOR_PICKER,
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GIMP_CURSOR_MODIFIER_MOVE);
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tool_manager_push_tool (display->gimp, tool);
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tool->display = display;
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gimp_tool_control_activate (tool->control);
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gimp_draw_tool_start (GIMP_DRAW_TOOL (sp_tool), display);
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if (sp_tool->sample_point)
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{
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gimp_tool_push_status_coords (tool, display,
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gimp_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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gimp_tool_push_status_coords (tool, display,
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gimp_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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gimp_sample_point_tool_start_new (GimpTool *parent_tool,
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GimpDisplay *display)
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{
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g_return_if_fail (GIMP_IS_TOOL (parent_tool));
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g_return_if_fail (GIMP_IS_DISPLAY (display));
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gimp_sample_point_tool_start (parent_tool, display, NULL);
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}
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void
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gimp_sample_point_tool_start_edit (GimpTool *parent_tool,
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GimpDisplay *display,
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GimpSamplePoint *sample_point)
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{
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g_return_if_fail (GIMP_IS_TOOL (parent_tool));
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g_return_if_fail (GIMP_IS_DISPLAY (display));
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g_return_if_fail (sample_point != NULL);
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gimp_sample_point_tool_start (parent_tool, display, sample_point);
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}
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