mirror of https://github.com/GNOME/gimp.git
711 lines
24 KiB
C
711 lines
24 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
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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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimp.h"
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#include "core/gimpimage.h"
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#include "core/gimpimage-pick-color.h"
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#include "core/gimpimage-sample-points.h"
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#include "core/gimpitem.h"
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#include "core/gimpmarshal.h"
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#include "config/gimpdisplayconfig.h"
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#include "display/gimpdisplay.h"
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#include "display/gimpdisplayshell.h"
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#include "display/gimpdisplayshell-appearance.h"
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#include "display/gimpdisplayshell-draw.h"
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#include "display/gimpdisplayshell-transform.h"
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#include "gimpcoloroptions.h"
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#include "gimpcolortool.h"
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#include "gimptoolcontrol.h"
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#include "gimp-intl.h"
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enum
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{
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PICKED,
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LAST_SIGNAL
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};
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/* local function prototypes */
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static void gimp_color_tool_finalize (GObject *object);
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static void gimp_color_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display);
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static void gimp_color_tool_button_press (GimpTool *tool,
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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_color_tool_button_release (GimpTool *tool,
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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_color_tool_motion (GimpTool *tool,
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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_color_tool_oper_update (GimpTool *tool,
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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_color_tool_cursor_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display);
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static void gimp_color_tool_draw (GimpDrawTool *draw_tool);
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static gboolean gimp_color_tool_real_pick (GimpColorTool *color_tool,
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gint x,
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gint y,
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GimpImageType *sample_type,
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GimpRGB *color,
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gint *color_index);
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static void gimp_color_tool_pick (GimpColorTool *tool,
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GimpColorPickState pick_state,
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gint x,
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gint y);
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G_DEFINE_TYPE (GimpColorTool, gimp_color_tool, GIMP_TYPE_DRAW_TOOL);
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#define parent_class gimp_color_tool_parent_class
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static guint gimp_color_tool_signals[LAST_SIGNAL] = { 0 };
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static void
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gimp_color_tool_class_init (GimpColorToolClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
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GimpDrawToolClass *draw_class = GIMP_DRAW_TOOL_CLASS (klass);
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gimp_color_tool_signals[PICKED] =
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g_signal_new ("picked",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpColorToolClass, picked),
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NULL, NULL,
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gimp_marshal_VOID__ENUM_ENUM_BOXED_INT,
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G_TYPE_NONE, 4,
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GIMP_TYPE_COLOR_PICK_STATE,
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GIMP_TYPE_IMAGE_TYPE,
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GIMP_TYPE_RGB | G_SIGNAL_TYPE_STATIC_SCOPE,
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G_TYPE_INT);
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object_class->finalize = gimp_color_tool_finalize;
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tool_class->control = gimp_color_tool_control;
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tool_class->button_press = gimp_color_tool_button_press;
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tool_class->button_release = gimp_color_tool_button_release;
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tool_class->motion = gimp_color_tool_motion;
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tool_class->oper_update = gimp_color_tool_oper_update;
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tool_class->cursor_update = gimp_color_tool_cursor_update;
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draw_class->draw = gimp_color_tool_draw;
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klass->pick = gimp_color_tool_real_pick;
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klass->picked = NULL;
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}
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static void
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gimp_color_tool_init (GimpColorTool *color_tool)
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{
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GimpTool *tool = GIMP_TOOL (color_tool);
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gimp_tool_control_set_action_value_1 (tool->control,
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"tools/tools-color-average-radius-set");
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color_tool->enabled = FALSE;
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color_tool->center_x = 0;
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color_tool->center_y = 0;
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color_tool->pick_mode = GIMP_COLOR_PICK_MODE_NONE;
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color_tool->options = NULL;
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color_tool->sample_point = NULL;
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color_tool->moving_sample_point = FALSE;
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color_tool->sample_point_x = -1;
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color_tool->sample_point_y = -1;
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}
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static void
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gimp_color_tool_finalize (GObject *object)
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{
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GimpColorTool *color_tool = GIMP_COLOR_TOOL (object);
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if (color_tool->options)
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{
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g_object_unref (color_tool->options);
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color_tool->options = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gimp_color_tool_control (GimpTool *tool,
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GimpToolAction action,
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GimpDisplay *display)
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{
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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
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switch (action)
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{
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case PAUSE:
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break;
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case RESUME:
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if (color_tool->sample_point &&
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gimp_display_shell_get_show_sample_points (GIMP_DISPLAY_SHELL (shell)))
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gimp_display_shell_draw_sample_point (GIMP_DISPLAY_SHELL (shell),
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color_tool->sample_point, TRUE);
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break;
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case HALT:
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if (color_tool->sample_point &&
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gimp_display_shell_get_show_sample_points (GIMP_DISPLAY_SHELL (shell)))
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gimp_display_shell_draw_sample_point (GIMP_DISPLAY_SHELL (shell),
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color_tool->sample_point, FALSE);
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break;
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default:
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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_color_tool_button_press (GimpTool *tool,
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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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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
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/* Make the tool active and set its display & drawable */
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tool->display = display;
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tool->drawable = gimp_image_active_drawable (display->image);
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gimp_tool_control_activate (tool->control);
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if (! color_tool->enabled)
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return;
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if (color_tool->sample_point)
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{
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color_tool->moving_sample_point = TRUE;
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color_tool->sample_point_x = color_tool->sample_point->x;
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color_tool->sample_point_y = color_tool->sample_point->y;
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gimp_display_shell_selection_visibility (shell, GIMP_SELECTION_PAUSE);
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gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
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gimp_tool_push_status_coords (tool, display,
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_("Move Sample Point: "),
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color_tool->sample_point_x,
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", ",
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color_tool->sample_point_y);
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}
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else
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{
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gint off_x, off_y;
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/* Keep the coordinates of the target */
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gimp_item_offsets (GIMP_ITEM (tool->drawable), &off_x, &off_y);
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color_tool->center_x = coords->x - off_x;
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color_tool->center_y = coords->y - off_y;
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gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
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gimp_color_tool_pick (color_tool, GIMP_COLOR_PICK_STATE_NEW,
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coords->x, coords->y);
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}
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}
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static void
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gimp_color_tool_button_release (GimpTool *tool,
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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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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
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gimp_tool_control_halt (tool->control);
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if (! color_tool->enabled)
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return;
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if (color_tool->moving_sample_point)
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{
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gint x, y, width, height;
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gimp_tool_pop_status (tool, display);
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gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
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if (state & GDK_BUTTON3_MASK)
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{
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color_tool->moving_sample_point = FALSE;
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color_tool->sample_point_x = -1;
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color_tool->sample_point_y = -1;
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gimp_display_shell_selection_visibility (shell,
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GIMP_SELECTION_RESUME);
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return;
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}
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gimp_display_shell_untransform_viewport (shell, &x, &y, &width, &height);
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if ((color_tool->sample_point_x < x ||
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color_tool->sample_point_x > (x + width - 1) ||
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color_tool->sample_point_y < y ||
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color_tool->sample_point_y > (y + height - 1)))
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{
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if (color_tool->sample_point)
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{
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gimp_image_remove_sample_point (display->image,
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color_tool->sample_point, TRUE);
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color_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 (color_tool->sample_point)
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{
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gimp_image_move_sample_point (display->image,
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color_tool->sample_point,
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color_tool->sample_point_x,
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color_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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color_tool->sample_point =
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gimp_image_add_sample_point_at_pos (display->image,
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color_tool->sample_point_x,
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color_tool->sample_point_y,
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TRUE);
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}
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}
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gimp_display_shell_selection_visibility (shell, GIMP_SELECTION_RESUME);
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gimp_image_flush (display->image);
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if (color_tool->sample_point)
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gimp_display_shell_draw_sample_point (shell, color_tool->sample_point,
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TRUE);
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color_tool->moving_sample_point = FALSE;
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color_tool->sample_point_x = -1;
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color_tool->sample_point_y = -1;
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}
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else
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{
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gimp_draw_tool_stop (GIMP_DRAW_TOOL (tool));
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}
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}
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static void
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gimp_color_tool_motion (GimpTool *tool,
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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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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
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if (! color_tool->enabled)
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return;
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if (color_tool->moving_sample_point)
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{
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gint tx, ty;
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gboolean delete_point = FALSE;
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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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FALSE);
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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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color_tool->sample_point_x = -1;
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color_tool->sample_point_y = -1;
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delete_point = TRUE;
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}
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else
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{
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gint x, y, width, height;
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color_tool->sample_point_x = floor (coords->x);
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color_tool->sample_point_y = floor (coords->y);
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gimp_display_shell_untransform_viewport (shell, &x, &y,
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&width, &height);
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if ((color_tool->sample_point_x < x ||
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color_tool->sample_point_x > (x + width - 1) ||
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color_tool->sample_point_y < y ||
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color_tool->sample_point_y > (y + height - 1)))
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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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color_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
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{
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gimp_tool_push_status_coords (tool, display,
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color_tool->sample_point ?
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_("Move Sample Point: ") :
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_("Add Sample Point: "),
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color_tool->sample_point_x,
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", ",
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color_tool->sample_point_y);
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}
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}
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else
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{
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gint off_x, off_y;
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gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
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gimp_item_offsets (GIMP_ITEM (tool->drawable), &off_x, &off_y);
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color_tool->center_x = coords->x - off_x;
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color_tool->center_y = coords->y - off_y;
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gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
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gimp_color_tool_pick (color_tool, GIMP_COLOR_PICK_STATE_UPDATE,
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coords->x, coords->y);
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}
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}
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static void
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gimp_color_tool_oper_update (GimpTool *tool,
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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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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (display->shell);
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GimpSamplePoint *sample_point = NULL;
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if (color_tool->enabled &&
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gimp_display_shell_get_show_sample_points (shell) && proximity)
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{
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gint snap_distance;
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snap_distance =
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GIMP_DISPLAY_CONFIG (display->image->gimp->config)->snap_distance;
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sample_point =
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gimp_image_find_sample_point (display->image,
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coords->x, coords->y,
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FUNSCALEX (shell, snap_distance),
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FUNSCALEY (shell, snap_distance));
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}
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if (color_tool->sample_point && color_tool->sample_point != sample_point)
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gimp_image_update_sample_point (shell->display->image,
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color_tool->sample_point);
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color_tool->sample_point = sample_point;
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if (color_tool->sample_point)
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gimp_display_shell_draw_sample_point (shell, color_tool->sample_point,
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TRUE);
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}
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static void
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gimp_color_tool_cursor_update (GimpTool *tool,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
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if (color_tool->enabled)
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{
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if (color_tool->sample_point)
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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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}
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else
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{
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GimpCursorType cursor = GIMP_CURSOR_BAD;
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GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE;
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if (coords->x > 0 && coords->x < display->image->width &&
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coords->y > 0 && coords->y < display->image->height &&
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(color_tool->options->sample_merged ||
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gimp_image_coords_in_active_drawable (display->image, coords)))
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{
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cursor = GIMP_CURSOR_MOUSE;
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}
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switch (color_tool->pick_mode)
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{
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case GIMP_COLOR_PICK_MODE_NONE:
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modifier = GIMP_CURSOR_MODIFIER_NONE;
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break;
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case GIMP_COLOR_PICK_MODE_FOREGROUND:
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modifier = GIMP_CURSOR_MODIFIER_FOREGROUND;
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break;
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case GIMP_COLOR_PICK_MODE_BACKGROUND:
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modifier = GIMP_CURSOR_MODIFIER_BACKGROUND;
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break;
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case GIMP_COLOR_PICK_MODE_PALETTE:
|
|
modifier = GIMP_CURSOR_MODIFIER_PLUS;
|
|
break;
|
|
}
|
|
|
|
gimp_tool_set_cursor (tool, display,
|
|
cursor, GIMP_TOOL_CURSOR_COLOR_PICKER,
|
|
modifier);
|
|
}
|
|
|
|
return; /* don't chain up */
|
|
}
|
|
|
|
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
|
|
}
|
|
|
|
static void
|
|
gimp_color_tool_draw (GimpDrawTool *draw_tool)
|
|
{
|
|
GimpColorTool *color_tool = GIMP_COLOR_TOOL (draw_tool);
|
|
|
|
if (! color_tool->enabled)
|
|
return;
|
|
|
|
if (color_tool->moving_sample_point)
|
|
{
|
|
if (color_tool->sample_point_x != -1 &&
|
|
color_tool->sample_point_y != -1)
|
|
{
|
|
gimp_draw_tool_draw_line (draw_tool,
|
|
0, color_tool->sample_point_y + 0.5,
|
|
draw_tool->display->image->width,
|
|
color_tool->sample_point_y + 0.5,
|
|
FALSE);
|
|
gimp_draw_tool_draw_line (draw_tool,
|
|
color_tool->sample_point_x + 0.5, 0,
|
|
color_tool->sample_point_x + 0.5,
|
|
draw_tool->display->image->height,
|
|
FALSE);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (color_tool->options->sample_average)
|
|
{
|
|
gdouble radius = color_tool->options->average_radius;
|
|
|
|
gimp_draw_tool_draw_rectangle (draw_tool,
|
|
FALSE,
|
|
color_tool->center_x - radius,
|
|
color_tool->center_y - radius,
|
|
2 * radius + 1,
|
|
2 * radius + 1,
|
|
TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gimp_color_tool_real_pick (GimpColorTool *color_tool,
|
|
gint x,
|
|
gint y,
|
|
GimpImageType *sample_type,
|
|
GimpRGB *color,
|
|
gint *color_index)
|
|
{
|
|
GimpTool *tool = GIMP_TOOL (color_tool);
|
|
|
|
g_return_val_if_fail (tool->display != NULL, FALSE);
|
|
g_return_val_if_fail (tool->drawable != NULL, FALSE);
|
|
|
|
return gimp_image_pick_color (tool->display->image, tool->drawable, x, y,
|
|
color_tool->options->sample_merged,
|
|
color_tool->options->sample_average,
|
|
color_tool->options->average_radius,
|
|
sample_type,
|
|
color,
|
|
color_index);
|
|
}
|
|
|
|
static void
|
|
gimp_color_tool_pick (GimpColorTool *tool,
|
|
GimpColorPickState pick_state,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GimpColorToolClass *klass;
|
|
GimpImageType sample_type;
|
|
GimpRGB color;
|
|
gint color_index;
|
|
|
|
klass = GIMP_COLOR_TOOL_GET_CLASS (tool);
|
|
|
|
if (klass->pick &&
|
|
klass->pick (tool, x, y, &sample_type, &color, &color_index))
|
|
{
|
|
g_signal_emit (tool, gimp_color_tool_signals[PICKED], 0,
|
|
pick_state, sample_type, &color, color_index);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
gimp_color_tool_enable (GimpColorTool *color_tool,
|
|
GimpColorOptions *options)
|
|
{
|
|
GimpTool *tool;
|
|
|
|
g_return_if_fail (GIMP_IS_COLOR_TOOL (color_tool));
|
|
g_return_if_fail (GIMP_IS_COLOR_OPTIONS (options));
|
|
|
|
tool = GIMP_TOOL (color_tool);
|
|
|
|
if (gimp_tool_control_is_active (tool->control))
|
|
{
|
|
g_warning ("Trying to enable GimpColorTool while it is active.");
|
|
return;
|
|
}
|
|
|
|
if (color_tool->options)
|
|
g_object_unref (color_tool->options);
|
|
|
|
color_tool->options = g_object_ref (options);
|
|
|
|
color_tool->enabled = TRUE;
|
|
}
|
|
|
|
void
|
|
gimp_color_tool_disable (GimpColorTool *color_tool)
|
|
{
|
|
GimpTool *tool;
|
|
|
|
g_return_if_fail (GIMP_IS_COLOR_TOOL (color_tool));
|
|
|
|
tool = GIMP_TOOL (color_tool);
|
|
|
|
if (gimp_tool_control_is_active (tool->control))
|
|
{
|
|
g_warning ("Trying to disable GimpColorTool while it is active.");
|
|
return;
|
|
}
|
|
|
|
if (color_tool->options)
|
|
{
|
|
g_object_unref (color_tool->options);
|
|
color_tool->options = NULL;
|
|
}
|
|
|
|
color_tool->enabled = FALSE;
|
|
}
|
|
|
|
gboolean
|
|
gimp_color_tool_is_enabled (GimpColorTool *color_tool)
|
|
{
|
|
return color_tool->enabled;
|
|
}
|
|
|
|
void
|
|
gimp_color_tool_start_sample_point (GimpTool *tool,
|
|
GimpDisplay *display)
|
|
{
|
|
GimpColorTool *color_tool;
|
|
|
|
g_return_if_fail (GIMP_IS_COLOR_TOOL (tool));
|
|
g_return_if_fail (GIMP_IS_DISPLAY (display));
|
|
|
|
color_tool = GIMP_COLOR_TOOL (tool);
|
|
|
|
gimp_display_shell_selection_visibility (GIMP_DISPLAY_SHELL (display->shell),
|
|
GIMP_SELECTION_PAUSE);
|
|
|
|
tool->display = display;
|
|
gimp_tool_control_activate (tool->control);
|
|
|
|
if (color_tool->sample_point)
|
|
gimp_display_shell_draw_sample_point (GIMP_DISPLAY_SHELL (display->shell),
|
|
color_tool->sample_point, FALSE);
|
|
|
|
color_tool->sample_point = NULL;
|
|
color_tool->moving_sample_point = TRUE;
|
|
color_tool->sample_point_x = -1;
|
|
color_tool->sample_point_y = -1;
|
|
|
|
gimp_tool_set_cursor (tool, display,
|
|
GIMP_CURSOR_MOUSE,
|
|
GIMP_TOOL_CURSOR_COLOR_PICKER,
|
|
GIMP_CURSOR_MODIFIER_MOVE);
|
|
|
|
gimp_draw_tool_start (GIMP_DRAW_TOOL (tool), display);
|
|
}
|