/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * GimpForegroundSelectTool * Copyright (C) 2005 Sven Neumann * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "config.h" #include #include #include #include #include "libgimpmath/gimpmath.h" #include "libgimpbase/gimpbase.h" #include "libgimpcolor/gimpcolor.h" #include "libgimpwidgets/gimpwidgets.h" #include "tools-types.h" #include "gegl/gimp-gegl-mask.h" #include "core/gimp.h" #include "core/gimpchannel-select.h" #include "core/gimpdrawable-foreground-extract.h" #include "core/gimperror.h" #include "core/gimpimage.h" #include "core/gimplayer.h" #include "core/gimplayermask.h" #include "core/gimpprogress.h" #include "core/gimpscanconvert.h" #include "widgets/gimphelp-ids.h" #include "widgets/gimpwidgets-utils.h" #include "display/gimpdisplay.h" #include "display/gimpdisplayshell.h" #include "display/gimptoolgui.h" #include "gimpforegroundselecttool.h" #include "gimpforegroundselectoptions.h" #include "gimptoolcontrol.h" #include "gimp-intl.h" typedef struct _StrokeUndo StrokeUndo; struct _StrokeUndo { GeglBuffer *saved_trimap; gint trimap_x; gint trimap_y; GimpMattingDrawMode draw_mode; gint stroke_width; }; static void gimp_foreground_select_tool_finalize (GObject *object); static gboolean gimp_foreground_select_tool_initialize (GimpTool *tool, GimpDisplay *display, GError **error); static void gimp_foreground_select_tool_control (GimpTool *tool, GimpToolAction action, GimpDisplay *display); static void gimp_foreground_select_tool_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonPressType press_type, GimpDisplay *display); static void gimp_foreground_select_tool_button_release (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonReleaseType release_type, GimpDisplay *display); static void gimp_foreground_select_tool_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display); static gboolean gimp_foreground_select_tool_key_press (GimpTool *tool, GdkEventKey *kevent, GimpDisplay *display); static void gimp_foreground_select_tool_modifier_key (GimpTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, GimpDisplay *display); static void gimp_foreground_select_tool_active_modifier_key (GimpTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, GimpDisplay *display); static void gimp_foreground_select_tool_oper_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, gboolean proximity, GimpDisplay *display); static void gimp_foreground_select_tool_cursor_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, GimpDisplay *display); static const gchar * gimp_foreground_select_tool_get_undo_desc (GimpTool *tool, GimpDisplay *display); static const gchar * gimp_foreground_select_tool_get_redo_desc (GimpTool *tool, GimpDisplay *display); static gboolean gimp_foreground_select_tool_undo (GimpTool *tool, GimpDisplay *display); static gboolean gimp_foreground_select_tool_redo (GimpTool *tool, GimpDisplay *display); static void gimp_foreground_select_tool_options_notify (GimpTool *tool, GimpToolOptions *options, const GParamSpec *pspec); static void gimp_foreground_select_tool_draw (GimpDrawTool *draw_tool); static void gimp_foreground_select_tool_select (GimpFreeSelectTool *free_sel, GimpDisplay *display); static void gimp_foreground_select_tool_halt (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_commit (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_set_trimap (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_set_preview (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_preview (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_stroke_paint (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_cancel_paint (GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_response (GimpToolGui *gui, gint response_id, GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_preview_toggled(GtkToggleButton *button, GimpForegroundSelectTool *fg_select); static void gimp_foreground_select_tool_update_gui (GimpForegroundSelectTool *fg_select); static StrokeUndo * gimp_foreground_select_undo_new (GeglBuffer *trimap, GArray *stroke, GimpMattingDrawMode draw_mode, gint stroke_width); static void gimp_foreground_select_undo_pop (StrokeUndo *undo, GeglBuffer *trimap); static void gimp_foreground_select_undo_free (StrokeUndo *undo); G_DEFINE_TYPE (GimpForegroundSelectTool, gimp_foreground_select_tool, GIMP_TYPE_FREE_SELECT_TOOL) #define parent_class gimp_foreground_select_tool_parent_class void gimp_foreground_select_tool_register (GimpToolRegisterCallback callback, gpointer data) { (* callback) (GIMP_TYPE_FOREGROUND_SELECT_TOOL, GIMP_TYPE_FOREGROUND_SELECT_OPTIONS, gimp_foreground_select_options_gui, GIMP_CONTEXT_FOREGROUND_MASK | GIMP_CONTEXT_BACKGROUND_MASK, "gimp-foreground-select-tool", _("Foreground Select"), _("Foreground Select Tool: Select a region containing foreground objects"), N_("F_oreground Select"), NULL, NULL, GIMP_HELP_TOOL_FOREGROUND_SELECT, GIMP_STOCK_TOOL_FOREGROUND_SELECT, data); } static void gimp_foreground_select_tool_class_init (GimpForegroundSelectToolClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass); GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass); GimpFreeSelectToolClass *free_select_tool_class; free_select_tool_class = GIMP_FREE_SELECT_TOOL_CLASS (klass); object_class->finalize = gimp_foreground_select_tool_finalize; tool_class->initialize = gimp_foreground_select_tool_initialize; tool_class->control = gimp_foreground_select_tool_control; tool_class->button_press = gimp_foreground_select_tool_button_press; tool_class->button_release = gimp_foreground_select_tool_button_release; tool_class->motion = gimp_foreground_select_tool_motion; tool_class->key_press = gimp_foreground_select_tool_key_press; tool_class->modifier_key = gimp_foreground_select_tool_modifier_key; tool_class->active_modifier_key = gimp_foreground_select_tool_active_modifier_key; tool_class->oper_update = gimp_foreground_select_tool_oper_update; tool_class->cursor_update = gimp_foreground_select_tool_cursor_update; tool_class->get_undo_desc = gimp_foreground_select_tool_get_undo_desc; tool_class->get_redo_desc = gimp_foreground_select_tool_get_redo_desc; tool_class->undo = gimp_foreground_select_tool_undo; tool_class->redo = gimp_foreground_select_tool_redo; tool_class->options_notify = gimp_foreground_select_tool_options_notify; draw_tool_class->draw = gimp_foreground_select_tool_draw; free_select_tool_class->select = gimp_foreground_select_tool_select; } static void gimp_foreground_select_tool_init (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); gimp_tool_control_set_scroll_lock (tool->control, FALSE); gimp_tool_control_set_preserve (tool->control, FALSE); gimp_tool_control_set_dirty_mask (tool->control, GIMP_DIRTY_IMAGE_SIZE | GIMP_DIRTY_ACTIVE_DRAWABLE); gimp_tool_control_set_precision (tool->control, GIMP_CURSOR_PRECISION_PIXEL_CENTER); gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_FREE_SELECT); gimp_tool_control_set_action_size (tool->control, "tools/tools-foreground-select-brush-size-set"); fg_select->state = MATTING_STATE_FREE_SELECT; } static void gimp_foreground_select_tool_finalize (GObject *object) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (object); if (fg_select->gui) { g_object_unref (fg_select->gui); fg_select->gui = NULL; fg_select->preview_toggle = NULL; } if (fg_select->stroke) g_warning ("%s: stroke should be NULL at this point", G_STRLOC); if (fg_select->mask) g_warning ("%s: mask should be NULL at this point", G_STRLOC); if (fg_select->trimap) g_warning ("%s: mask should be NULL at this point", G_STRLOC); G_OBJECT_CLASS (parent_class)->finalize (object); } static gboolean gimp_foreground_select_tool_initialize (GimpTool *tool, GimpDisplay *display, GError **error) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); GimpDisplayShell *shell = gimp_display_get_shell (display); if (! drawable) return FALSE; if (! gimp_item_is_visible (GIMP_ITEM (drawable))) { g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED, _("The active layer is not visible.")); return FALSE; } tool->display = display; fg_select->state = MATTING_STATE_FREE_SELECT; if (! fg_select->gui) { fg_select->gui = gimp_tool_gui_new (tool->tool_info, _("Dialog for foreground select"), gtk_widget_get_screen (GTK_WIDGET (shell)), gimp_widget_get_monitor (GTK_WIDGET (shell)), TRUE, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GIMP_STOCK_TOOL_FOREGROUND_SELECT, GTK_RESPONSE_APPLY, NULL); g_signal_connect (fg_select->gui, "response", G_CALLBACK (gimp_foreground_select_tool_response), fg_select); fg_select->preview_toggle = gtk_check_button_new_with_mnemonic (_("_Preview mask")); gtk_box_pack_start (GTK_BOX (gimp_tool_gui_get_vbox (fg_select->gui)), fg_select->preview_toggle, FALSE, FALSE, 0); gtk_widget_show (fg_select->preview_toggle); g_signal_connect (fg_select->preview_toggle, "toggled", G_CALLBACK (gimp_foreground_select_tool_preview_toggled), fg_select); } gimp_tool_gui_set_description (fg_select->gui, _("Select foreground pixels")); gimp_tool_gui_set_response_sensitive (fg_select->gui, GTK_RESPONSE_APPLY, FALSE); gtk_widget_set_sensitive (fg_select->preview_toggle, FALSE); gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (fg_select->preview_toggle), FALSE); gimp_tool_gui_set_shell (fg_select->gui, shell); gimp_tool_gui_set_viewable (fg_select->gui, GIMP_VIEWABLE (drawable)); gimp_tool_gui_show (fg_select->gui); return TRUE; } static void gimp_foreground_select_tool_control (GimpTool *tool, GimpToolAction action, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); switch (action) { case GIMP_TOOL_ACTION_PAUSE: case GIMP_TOOL_ACTION_RESUME: break; case GIMP_TOOL_ACTION_HALT: gimp_foreground_select_tool_halt (fg_select); break; case GIMP_TOOL_ACTION_COMMIT: gimp_foreground_select_tool_commit (fg_select); break; } GIMP_TOOL_CLASS (parent_class)->control (tool, action, display); } static void gimp_foreground_select_tool_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonPressType press_type, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state, press_type, display); } else { GimpVector2 point = gimp_vector2_new (coords->x, coords->y); gimp_draw_tool_pause (draw_tool); if (gimp_draw_tool_is_active (draw_tool) && draw_tool->display != display) gimp_draw_tool_stop (draw_tool); gimp_tool_control_activate (tool->control); fg_select->last_coords = *coords; g_return_if_fail (fg_select->stroke == NULL); fg_select->stroke = g_array_new (FALSE, FALSE, sizeof (GimpVector2)); g_array_append_val (fg_select->stroke, point); if (!gimp_draw_tool_is_active (draw_tool)) gimp_draw_tool_start (draw_tool, display); gimp_draw_tool_resume (draw_tool); } } static void gimp_foreground_select_tool_button_release (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonReleaseType release_type, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state, release_type, display); } else { gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool)); gimp_tool_control_halt (tool->control); if (release_type == GIMP_BUTTON_RELEASE_CANCEL) { gimp_foreground_select_tool_cancel_paint (fg_select); } else { gimp_foreground_select_tool_stroke_paint (fg_select); if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); else gimp_foreground_select_tool_set_trimap (fg_select); } gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); } } static void gimp_foreground_select_tool_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display); } else { GimpVector2 *last = &g_array_index (fg_select->stroke, GimpVector2, fg_select->stroke->len - 1); gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool)); fg_select->last_coords = *coords; if (last->x != (gint) coords->x || last->y != (gint) coords->y) { GimpVector2 point = gimp_vector2_new (coords->x, coords->y); g_array_append_val (fg_select->stroke, point); } gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); } } static gboolean gimp_foreground_select_tool_key_press (GimpTool *tool, GdkEventKey *kevent, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { return GIMP_TOOL_CLASS (parent_class)->key_press (tool, kevent, display); } else { if (display != tool->display) return FALSE; switch (kevent->keyval) { case GDK_KEY_Return: case GDK_KEY_KP_Enter: case GDK_KEY_ISO_Enter: if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (fg_select->preview_toggle), TRUE); else gimp_foreground_select_tool_response (fg_select->gui, GTK_RESPONSE_APPLY, fg_select); return TRUE; case GDK_KEY_Escape: if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) gimp_foreground_select_tool_response (fg_select->gui, GTK_RESPONSE_CANCEL, fg_select); else gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (fg_select->preview_toggle), FALSE); return TRUE; default: return FALSE; } } } static void gimp_foreground_select_tool_modifier_key (GimpTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_TOOL_CLASS (parent_class)->modifier_key (tool, key, press, state, display); } else { #if 0 if (key == gimp_get_toggle_behavior_mask ()) { GimpForegroundSelectOptions *options; options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (tool); g_object_set (options, "background", ! options->background, NULL); } #endif } } static void gimp_foreground_select_tool_active_modifier_key (GimpTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_TOOL_CLASS (parent_class)->active_modifier_key (tool, key, press, state, display); } } static void gimp_foreground_select_tool_oper_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, gboolean proximity, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); GimpForegroundSelectOptions *options; const gchar *status_stage = NULL; const gchar *status_mode = NULL; options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (fg_select); GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity, display); if (fg_select->state == MATTING_STATE_FREE_SELECT) { if (GIMP_SELECTION_TOOL (tool)->function == SELECTION_SELECT) status_stage = _("Roughly outline the object to extract"); } else { GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool); gimp_draw_tool_pause (draw_tool); fg_select->last_coords = *coords; gimp_draw_tool_resume (draw_tool); if (options->draw_mode == GIMP_MATTING_DRAW_MODE_FOREGROUND) status_mode = _("Selecting foreground,"); else if (options->draw_mode == GIMP_MATTING_DRAW_MODE_BACKGROUND) status_mode = _("Selecting background,"); else status_mode = _("Selecting unknown,"); if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) status_stage = _("press Enter to preview."); else status_stage = _("press Escape to exit preview or Enter to apply."); } if (proximity && status_stage) { if (status_mode) gimp_tool_replace_status (tool, display, "%s %s", status_mode, status_stage); else gimp_tool_replace_status (tool, display, "%s", status_stage); } } static void gimp_foreground_select_tool_cursor_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) { switch (GIMP_SELECTION_TOOL (tool)->function) { case SELECTION_MOVE_MASK: case SELECTION_MOVE: case SELECTION_MOVE_COPY: case SELECTION_ANCHOR: return; default: break; } } GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display); } static const gchar * gimp_foreground_select_tool_get_undo_desc (GimpTool *tool, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->undo_stack) { StrokeUndo *undo = fg_select->undo_stack->data; const gchar *desc; if (gimp_enum_get_value (GIMP_TYPE_MATTING_DRAW_MODE, undo->draw_mode, NULL, NULL, &desc, NULL)) { return desc; } } return NULL; } static const gchar * gimp_foreground_select_tool_get_redo_desc (GimpTool *tool, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->redo_stack) { StrokeUndo *undo = fg_select->redo_stack->data; const gchar *desc; if (gimp_enum_get_value (GIMP_TYPE_MATTING_DRAW_MODE, undo->draw_mode, NULL, NULL, &desc, NULL)) { return desc; } } return NULL; } static gboolean gimp_foreground_select_tool_undo (GimpTool *tool, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->undo_stack) { StrokeUndo *undo = fg_select->undo_stack->data; gimp_foreground_select_undo_pop (undo, fg_select->trimap); fg_select->undo_stack = g_list_remove (fg_select->undo_stack, undo); fg_select->redo_stack = g_list_prepend (fg_select->redo_stack, undo); if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); else gimp_foreground_select_tool_set_trimap (fg_select); return TRUE; } return FALSE; } static gboolean gimp_foreground_select_tool_redo (GimpTool *tool, GimpDisplay *display) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); if (fg_select->redo_stack) { StrokeUndo *undo = fg_select->redo_stack->data; gimp_foreground_select_undo_pop (undo, fg_select->trimap); fg_select->redo_stack = g_list_remove (fg_select->redo_stack, undo); fg_select->undo_stack = g_list_prepend (fg_select->undo_stack, undo); if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); else gimp_foreground_select_tool_set_trimap (fg_select); return TRUE; } return FALSE; } static void gimp_foreground_select_tool_options_notify (GimpTool *tool, GimpToolOptions *options, const GParamSpec *pspec) { GimpForegroundSelectTool *fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); GimpForegroundSelectOptions *fg_options = GIMP_FOREGROUND_SELECT_OPTIONS (options); if (! tool->display) return; if (! strcmp (pspec->name, "mask-color")) { if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) gimp_foreground_select_tool_set_trimap (fg_select); else if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_set_preview (fg_select); } else if (! strcmp (pspec->name, "engine")) { if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); } else if (! strcmp (pspec->name, "iterations")) { if (fg_options->engine == GIMP_MATTING_ENGINE_GLOBAL && fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); } else if (! strcmp (pspec->name, "levels") || ! strcmp (pspec->name, "active-levels")) { if (fg_options->engine == GIMP_MATTING_ENGINE_LEVIN && fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); } } static void gimp_foreground_select_tool_get_area (GeglBuffer *mask, gint *x1, gint *y1, gint *x2, gint *y2) { gint width; gint height; gimp_gegl_mask_bounds (mask, x1, y1, x2, y2); width = *x2 - *x1; height = *y2 - *y1; *x1 = MAX (*x1 - width / 2, 0); *y1 = MAX (*y1 - height / 2, 0); *x2 = MIN (*x2 + width / 2, gimp_item_get_width (GIMP_ITEM (mask))); *y2 = MIN (*y2 + height / 2, gimp_item_get_height (GIMP_ITEM (mask))); } static void gimp_foreground_select_tool_draw (GimpDrawTool *draw_tool) { GimpTool *tool = GIMP_TOOL (draw_tool); GimpForegroundSelectTool *fg_select; GimpForegroundSelectOptions *options; fg_select = GIMP_FOREGROUND_SELECT_TOOL (tool); options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (tool); if (fg_select->state == MATTING_STATE_FREE_SELECT) { GIMP_DRAW_TOOL_CLASS (parent_class)->draw (draw_tool); return; } else { gint x = fg_select->last_coords.x; gint y = fg_select->last_coords.y; gdouble radius = options->stroke_width / 2;; if (fg_select->stroke) { GimpDisplayShell *shell = gimp_display_get_shell (draw_tool->display); gimp_draw_tool_add_pen (draw_tool, (const GimpVector2 *) fg_select->stroke->data, fg_select->stroke->len, GIMP_CONTEXT (options), GIMP_ACTIVE_COLOR_FOREGROUND, options->stroke_width * shell->scale_y); } /* warn if the user is drawing outside of the working area */ if (FALSE) { gint x1, y1; gint x2, y2; gimp_foreground_select_tool_get_area (fg_select->mask, &x1, &y1, &x2, &y2); if (x < x1 + radius || x > x2 - radius || y < y1 + radius || y > y2 - radius) { gimp_draw_tool_add_rectangle (draw_tool, FALSE, x1, y1, x2 - x1, y2 - y1); } } gimp_draw_tool_add_arc (draw_tool, FALSE, x - radius, y - radius, 2 * radius, 2 * radius, 0.0, 2.0 * G_PI); } } static void gimp_foreground_select_tool_select (GimpFreeSelectTool *free_sel, GimpDisplay *display) { GimpForegroundSelectTool *fg_select; GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable; GimpScanConvert *scan_convert; const GimpVector2 *points; gint n_points; drawable = gimp_image_get_active_drawable (image); fg_select = GIMP_FOREGROUND_SELECT_TOOL (free_sel); if (! drawable) return; if (fg_select->state == MATTING_STATE_FREE_SELECT) { scan_convert = gimp_scan_convert_new (); gimp_free_select_tool_get_points (free_sel, &points, &n_points); gimp_scan_convert_add_polyline (scan_convert, n_points, points, TRUE); fg_select->trimap = gegl_buffer_new (GEGL_RECTANGLE (0, 0, gimp_image_get_width (image), gimp_image_get_height (image)), gimp_image_get_mask_format (image)); gimp_scan_convert_render_value (scan_convert, fg_select->trimap, 0, 0, 0.5); gimp_scan_convert_free (scan_convert); gimp_foreground_select_tool_set_trimap (fg_select); } } static void gimp_foreground_select_tool_halt (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); if (fg_select->trimap) { g_object_unref (fg_select->trimap); fg_select->trimap = NULL; } if (fg_select->mask) { g_object_unref (fg_select->mask); fg_select->mask = NULL; } if (fg_select->undo_stack) { g_list_free_full (fg_select->undo_stack, (GDestroyNotify) gimp_foreground_select_undo_free); fg_select->undo_stack = NULL; } if (fg_select->redo_stack) { g_list_free_full (fg_select->redo_stack, (GDestroyNotify) gimp_foreground_select_undo_free); fg_select->redo_stack = NULL; } if (tool->display) gimp_display_shell_set_mask (gimp_display_get_shell (tool->display), NULL, NULL); gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_FREE_SELECT); gimp_tool_control_set_toggle_tool_cursor (tool->control, GIMP_TOOL_CURSOR_FREE_SELECT); gimp_tool_control_set_toggled (tool->control, FALSE); fg_select->state = MATTING_STATE_FREE_SELECT; /* update the undo actions / menu items */ if (tool->display) gimp_image_flush (gimp_display_get_image (tool->display)); tool->display = NULL; tool->drawable = NULL; if (fg_select->gui) gimp_tool_gui_hide (fg_select->gui); } static void gimp_foreground_select_tool_commit (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (fg_select); if (tool->display && fg_select->state != MATTING_STATE_FREE_SELECT) { GimpImage *image = gimp_display_get_image (tool->display); if (fg_select->state != MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_preview (fg_select); gimp_channel_select_buffer (gimp_image_get_mask (image), C_("command", "Foreground Select"), fg_select->mask, 0, /* x offset */ 0, /* y offset */ options->operation, options->feather, options->feather_radius, options->feather_radius); gimp_image_flush (image); } } static void gimp_foreground_select_tool_set_trimap (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); GimpForegroundSelectOptions *options; GimpRGB color; g_return_if_fail (fg_select->trimap != NULL); options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (tool); gimp_foreground_select_options_get_mask_color (options, &color); gimp_display_shell_set_mask (gimp_display_get_shell (tool->display), fg_select->trimap, &color); gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_PAINTBRUSH); gimp_tool_control_set_toggle_tool_cursor (tool->control, GIMP_TOOL_CURSOR_PAINTBRUSH); gimp_tool_control_set_toggled (tool->control, FALSE); fg_select->state = MATTING_STATE_PAINT_TRIMAP; gimp_foreground_select_tool_update_gui (fg_select); } static void gimp_foreground_select_tool_set_preview (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); GimpForegroundSelectOptions *options; GimpRGB color; g_return_if_fail (fg_select->mask != NULL); options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (tool); gimp_foreground_select_options_get_mask_color (options, &color); gimp_display_shell_set_mask (gimp_display_get_shell (tool->display), fg_select->mask, &color); gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_PAINTBRUSH); gimp_tool_control_set_toggle_tool_cursor (tool->control, GIMP_TOOL_CURSOR_PAINTBRUSH); gimp_tool_control_set_toggled (tool->control, FALSE); fg_select->state = MATTING_STATE_PREVIEW_MASK; gimp_foreground_select_tool_update_gui (fg_select); } static void gimp_foreground_select_tool_preview (GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); GimpForegroundSelectOptions *options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (tool); GimpImage *image = gimp_display_get_image (tool->display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); GeglBuffer *trimap_buffer; GeglBuffer *drawable_buffer; GeglNode *gegl; GeglNode *matting_node; GeglNode *input_image; GeglNode *input_trimap; GeglNode *output_mask; GeglBuffer *buffer; GimpProgress *progress; GeglProcessor *processor; gdouble value; if (fg_select->mask) { g_object_unref (fg_select->mask); fg_select->mask = NULL; } progress = gimp_progress_start (GIMP_PROGRESS (fg_select), _("Computing alpha of unknown pixels"), FALSE); trimap_buffer = fg_select->trimap; drawable_buffer = gimp_drawable_get_buffer (drawable); gegl = gegl_node_new (); input_trimap = gegl_node_new_child (gegl, "operation", "gegl:buffer-source", "buffer", trimap_buffer, NULL); input_image = gegl_node_new_child (gegl, "operation", "gegl:buffer-source", "buffer", drawable_buffer, NULL); output_mask = gegl_node_new_child (gegl, "operation", "gegl:buffer-sink", "buffer", &buffer, "format", NULL, NULL); if (options->engine == GIMP_MATTING_ENGINE_GLOBAL) { matting_node = gegl_node_new_child (gegl, "operation", "gegl:matting-global", "iterations", options->iterations, NULL); } else { matting_node = gegl_node_new_child (gegl, "operation", "gegl:matting-levin", "levels", options->levels, "active_levels", options->active_levels, NULL); } gegl_node_connect_to (input_image, "output", matting_node, "input"); gegl_node_connect_to (input_trimap, "output", matting_node, "aux"); gegl_node_connect_to (matting_node, "output", output_mask, "input"); processor = gegl_node_new_processor (output_mask, NULL); while (gegl_processor_work (processor, &value)) { if (progress) gimp_progress_set_value (progress, value); } if (progress) gimp_progress_end (progress); g_object_unref (processor); fg_select->mask = buffer; gimp_foreground_select_tool_set_preview (fg_select); g_object_unref (gegl); } static void gimp_foreground_select_tool_stroke_paint (GimpForegroundSelectTool *fg_select) { GimpForegroundSelectOptions *options; GimpScanConvert *scan_convert; StrokeUndo *undo; gint width; gdouble opacity; options = GIMP_FOREGROUND_SELECT_TOOL_GET_OPTIONS (fg_select); g_return_if_fail (fg_select->stroke != NULL); width = ROUND ((gdouble) options->stroke_width); if (fg_select->redo_stack) { g_list_free_full (fg_select->redo_stack, (GDestroyNotify) gimp_foreground_select_undo_free); fg_select->redo_stack = NULL; } undo = gimp_foreground_select_undo_new (fg_select->trimap, fg_select->stroke, options->draw_mode, width); fg_select->undo_stack = g_list_prepend (fg_select->undo_stack, undo); scan_convert = gimp_scan_convert_new (); if (fg_select->stroke->len == 1) { GimpVector2 points[2]; points[0] = points[1] = ((GimpVector2 *) fg_select->stroke->data)[0]; points[1].x += 0.01; points[1].y += 0.01; gimp_scan_convert_add_polyline (scan_convert, 2, points, FALSE); } else { gimp_scan_convert_add_polyline (scan_convert, fg_select->stroke->len, (GimpVector2 *) fg_select->stroke->data, FALSE); } gimp_scan_convert_stroke (scan_convert, width, GIMP_JOIN_ROUND, GIMP_CAP_ROUND, 10.0, 0.0, NULL); if (options->draw_mode == GIMP_MATTING_DRAW_MODE_FOREGROUND) opacity = 1.0; else if (options->draw_mode == GIMP_MATTING_DRAW_MODE_BACKGROUND) opacity = 0.0; else opacity = 0.5; gimp_scan_convert_compose_value (scan_convert, fg_select->trimap, 0, 0, opacity); gimp_scan_convert_free (scan_convert); g_array_free (fg_select->stroke, TRUE); fg_select->stroke = NULL; /* update the undo actions / menu items */ gimp_image_flush (gimp_display_get_image (GIMP_TOOL (fg_select)->display)); } static void gimp_foreground_select_tool_cancel_paint (GimpForegroundSelectTool *fg_select) { g_return_if_fail (fg_select->stroke != NULL); g_array_free (fg_select->stroke, TRUE); fg_select->stroke = NULL; } static void gimp_foreground_select_tool_response (GimpToolGui *gui, gint response_id, GimpForegroundSelectTool *fg_select) { GimpTool *tool = GIMP_TOOL (fg_select); switch (response_id) { case GTK_RESPONSE_APPLY: gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display); /* fallthru */ default: gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display); break; } } static void gimp_foreground_select_tool_preview_toggled (GtkToggleButton *button, GimpForegroundSelectTool *fg_select) { if (fg_select->state != MATTING_STATE_FREE_SELECT) { if (gtk_toggle_button_get_active (button)) { if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) gimp_foreground_select_tool_preview (fg_select); } else { if (fg_select->state == MATTING_STATE_PREVIEW_MASK) gimp_foreground_select_tool_set_trimap (fg_select); } } } static void gimp_foreground_select_tool_update_gui (GimpForegroundSelectTool *fg_select) { if (fg_select->state == MATTING_STATE_PAINT_TRIMAP) { gimp_tool_gui_set_description (fg_select->gui, _("Paint mask")); } else if (fg_select->state == MATTING_STATE_PREVIEW_MASK) { gimp_tool_gui_set_description (fg_select->gui, _("Preview")); } gimp_tool_gui_set_response_sensitive (fg_select->gui, GTK_RESPONSE_APPLY, TRUE); gtk_widget_set_sensitive (fg_select->preview_toggle, TRUE); } static StrokeUndo * gimp_foreground_select_undo_new (GeglBuffer *trimap, GArray *stroke, GimpMattingDrawMode draw_mode, gint stroke_width) { StrokeUndo *undo = g_slice_new0 (StrokeUndo); gint x1, y1, x2, y2; gint width, height; gint i; x1 = G_MAXINT; y1 = G_MAXINT; x2 = G_MININT; y2 = G_MININT; for (i = 0; i < stroke->len; i++) { GimpVector2 *point = &g_array_index (stroke, GimpVector2, i); x1 = MIN (x1, floor (point->x)); y1 = MIN (y1, floor (point->y)); x2 = MAX (x2, ceil (point->x)); y2 = MAX (y2, ceil (point->y)); } x1 -= stroke_width; y1 -= stroke_width; x2 += stroke_width; y2 += stroke_width; x1 = MAX (x1, 0); y1 = MAX (y1, 0); x2 = MIN (x2, gegl_buffer_get_width (trimap)); y2 = MIN (y2, gegl_buffer_get_height (trimap)); width = x2 - x1; height = y2 - y1; undo->saved_trimap = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height), gegl_buffer_get_format (trimap)); gegl_buffer_copy (trimap, GEGL_RECTANGLE (x1, y1, width, height), undo->saved_trimap, GEGL_RECTANGLE (0, 0, width, height)); undo->trimap_x = x1; undo->trimap_y = y1; undo->draw_mode = draw_mode; undo->stroke_width = stroke_width; return undo; } static void gimp_foreground_select_undo_pop (StrokeUndo *undo, GeglBuffer *trimap) { GeglBuffer *buffer; gint width, height; buffer = gegl_buffer_dup (undo->saved_trimap); width = gegl_buffer_get_width (buffer); height = gegl_buffer_get_height (buffer); gegl_buffer_copy (trimap, GEGL_RECTANGLE (undo->trimap_x, undo->trimap_y, width, height), undo->saved_trimap, GEGL_RECTANGLE (0, 0, width, height)); gegl_buffer_copy (buffer, GEGL_RECTANGLE (0, 0, width, height), trimap, GEGL_RECTANGLE (undo->trimap_x, undo->trimap_y, width, height)); g_object_unref (buffer); } static void gimp_foreground_select_undo_free (StrokeUndo *undo) { if (undo->saved_trimap) { g_object_unref (undo->saved_trimap); undo->saved_trimap = NULL; } g_slice_free (StrokeUndo, undo); }