/* PIKA - Photo and Image Kooker Application * a rebranding of The GNU Image Manipulation Program (created with heckimp) * A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio * * Original copyright, applying to most contents (license remains unchanged): * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * PikaPaintSelectTool * Copyright (C) 2020 Thomas Manni * * 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 #include "libpikamath/pikamath.h" #include "libpikabase/pikabase.h" #include "libpikacolor/pikacolor.h" #include "libpikawidgets/pikawidgets.h" #include "tools-types.h" #include "config/pikaguiconfig.h" #include "gegl/pika-gegl-loops.h" #include "gegl/pika-gegl-mask.h" #include "gegl/pika-gegl-utils.h" #include "core/pika.h" #include "core/pikachannel-select.h" #include "core/pikaerror.h" #include "core/pikaimage.h" #include "core/pikalayer.h" #include "core/pikalayermask.h" #include "core/pikaprogress.h" #include "core/pikascanconvert.h" #include "widgets/pikahelp-ids.h" #include "widgets/pikawidgets-utils.h" #include "display/pikadisplay.h" #include "display/pikadisplayshell.h" #include "display/pikadisplayshell-scroll.h" #include "display/pikatoolgui.h" #include "core/pikatooloptions.h" #include "pikapaintselecttool.h" #include "pikapaintselectoptions.h" #include "pikatoolcontrol.h" #include "pika-intl.h" #include "config/pikaguiconfig.h" /* playground */ static void pika_paint_select_tool_control (PikaTool *tool, PikaToolAction action, PikaDisplay *display); static void pika_paint_select_tool_button_press (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaButtonPressType press_type, PikaDisplay *display); static void pika_paint_select_tool_button_release (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaButtonReleaseType release_type, PikaDisplay *display); static void pika_paint_select_tool_motion (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaDisplay *display); static gboolean pika_paint_select_tool_key_press (PikaTool *tool, GdkEventKey *kevent, PikaDisplay *display); static void pika_paint_select_tool_modifier_key (PikaTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, PikaDisplay *display); static void pika_paint_select_tool_oper_update (PikaTool *tool, const PikaCoords *coords, GdkModifierType state, gboolean proximity, PikaDisplay *display); static void pika_paint_select_tool_options_notify (PikaTool *tool, PikaToolOptions *options, const GParamSpec *pspec); static void pika_paint_select_tool_cursor_update (PikaTool *tool, const PikaCoords *coords, GdkModifierType state, PikaDisplay *display); static void pika_paint_select_tool_draw (PikaDrawTool *draw_tool); static void pika_paint_select_tool_halt (PikaPaintSelectTool *ps_tool); static void pika_paint_select_tool_update_image_mask (PikaPaintSelectTool *ps_tool, GeglBuffer *buffer, gint offset_x, gint offset_y, PikaPaintSelectMode mode); static void pika_paint_select_tool_init_buffers (PikaPaintSelectTool *ps_tool, PikaImage *image, PikaDrawable *drawable); static gboolean pika_paint_select_tool_can_paint (PikaPaintSelectTool *ps_tool, PikaDisplay *display, gboolean show_message); static gboolean pika_paint_select_tool_start (PikaPaintSelectTool *ps_tool, PikaDisplay *display); static void pika_paint_select_tool_init_scribble (PikaPaintSelectTool *ps_tool); static void pika_paint_select_tool_create_graph (PikaPaintSelectTool *ps_tool); static gboolean pika_paint_select_tool_paint_scribble (PikaPaintSelectTool *ps_tool); static void pika_paint_select_tool_toggle_scribbles_visibility (PikaPaintSelectTool *ps_tool); static GeglRectangle pika_paint_select_tool_get_local_region (PikaDisplay *display, gint brush_x, gint brush_y, gint drawable_off_x, gint drawable_off_y, gint drawable_width, gint drawable_height); static gfloat euclidean_distance (gint x1, gint y1, gint x2, gint y2); G_DEFINE_TYPE (PikaPaintSelectTool, pika_paint_select_tool, PIKA_TYPE_DRAW_TOOL) #define parent_class pika_paint_select_tool_parent_class void pika_paint_select_tool_register (PikaToolRegisterCallback callback, gpointer data) { if (gegl_has_operation ("gegl:paint-select") && PIKA_GUI_CONFIG (PIKA (data)->config)->playground_paint_select_tool) (* callback) (PIKA_TYPE_PAINT_SELECT_TOOL, PIKA_TYPE_PAINT_SELECT_OPTIONS, pika_paint_select_options_gui, 0, "pika-paint-select-tool", _("Paint Select"), _("Paint Select Tool: Select objects by painting roughly"), N_("P_aint Select"), NULL, NULL, PIKA_HELP_TOOL_FOREGROUND_SELECT, PIKA_ICON_TOOL_PAINT_SELECT, data); } static void pika_paint_select_tool_class_init (PikaPaintSelectToolClass *klass) { PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass); PikaDrawToolClass *draw_tool_class = PIKA_DRAW_TOOL_CLASS (klass); tool_class->button_press = pika_paint_select_tool_button_press; tool_class->button_release = pika_paint_select_tool_button_release; tool_class->control = pika_paint_select_tool_control; tool_class->cursor_update = pika_paint_select_tool_cursor_update; tool_class->key_press = pika_paint_select_tool_key_press; tool_class->modifier_key = pika_paint_select_tool_modifier_key; tool_class->motion = pika_paint_select_tool_motion; tool_class->oper_update = pika_paint_select_tool_oper_update; tool_class->options_notify = pika_paint_select_tool_options_notify; draw_tool_class->draw = pika_paint_select_tool_draw; } static void pika_paint_select_tool_init (PikaPaintSelectTool *ps_tool) { PikaTool *tool = PIKA_TOOL (ps_tool); pika_tool_control_set_motion_mode (tool->control, PIKA_MOTION_MODE_EXACT); pika_tool_control_set_scroll_lock (tool->control, FALSE); pika_tool_control_set_preserve (tool->control, FALSE); pika_tool_control_set_dirty_mask (tool->control, PIKA_DIRTY_IMAGE | PIKA_DIRTY_ACTIVE_DRAWABLE); pika_tool_control_set_dirty_action (tool->control, PIKA_TOOL_ACTION_HALT); pika_tool_control_set_precision (tool->control, PIKA_CURSOR_PRECISION_SUBPIXEL); pika_tool_control_set_tool_cursor (tool->control, PIKA_TOOL_CURSOR_PAINTBRUSH); pika_tool_control_set_cursor_modifier (tool->control, PIKA_CURSOR_MODIFIER_PLUS); pika_tool_control_set_action_pixel_size (tool->control, "tools-paint-select-pixel-size-set"); /* TODO: the size-set action is not implemented. */ pika_tool_control_set_action_size (tool->control, "tools-paint-select-size-set"); ps_tool->image_mask = NULL; ps_tool->trimap = NULL; ps_tool->drawable = NULL; ps_tool->scribble = NULL; ps_tool->graph = NULL; ps_tool->ps_node = NULL; ps_tool->render_node = NULL; } static void pika_paint_select_tool_button_press (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaButtonPressType press_type, PikaDisplay *display) { PikaPaintSelectTool *ps_tool = PIKA_PAINT_SELECT_TOOL (tool); if (tool->display && display != tool->display) pika_tool_control (tool, PIKA_TOOL_ACTION_HALT, tool->display); if (! tool->display) { if (! pika_paint_select_tool_start (ps_tool, display)) return; } g_return_if_fail (g_list_length (tool->drawables) == 1); ps_tool->last_pos.x = coords->x; ps_tool->last_pos.y = coords->y; if (pika_paint_select_tool_paint_scribble (ps_tool)) { PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (ps_tool); gint offset_x = ps_tool->last_pos.x - options->stroke_width / 2; gint offset_y = ps_tool->last_pos.y - options->stroke_width / 2; pika_paint_select_tool_update_image_mask (ps_tool, ps_tool->scribble, offset_x, offset_y, options->mode); } pika_tool_control_activate (tool->control); } static void pika_paint_select_tool_button_release (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaButtonReleaseType release_type, PikaDisplay *display) { PikaDrawTool *draw_tool = PIKA_DRAW_TOOL (tool); pika_draw_tool_pause (draw_tool); pika_tool_control_halt (tool->control); pika_draw_tool_resume (draw_tool); } static void pika_paint_select_tool_control (PikaTool *tool, PikaToolAction action, PikaDisplay *display) { PikaPaintSelectTool *paint_select = PIKA_PAINT_SELECT_TOOL (tool); switch (action) { case PIKA_TOOL_ACTION_PAUSE: break; case PIKA_TOOL_ACTION_RESUME: break; case PIKA_TOOL_ACTION_HALT: pika_paint_select_tool_halt (paint_select); break; case PIKA_TOOL_ACTION_COMMIT: break; } PIKA_TOOL_CLASS (parent_class)->control (tool, action, display); } static void pika_paint_select_tool_cursor_update (PikaTool *tool, const PikaCoords *coords, GdkModifierType state, PikaDisplay *display) { PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (tool); PikaCursorModifier modifier = PIKA_CURSOR_MODIFIER_NONE; if (options->mode == PIKA_PAINT_SELECT_MODE_ADD) { modifier = PIKA_CURSOR_MODIFIER_PLUS; } else { modifier = PIKA_CURSOR_MODIFIER_MINUS; } pika_tool_control_set_cursor_modifier (tool->control, modifier); PIKA_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display); } static gboolean pika_paint_select_tool_can_paint (PikaPaintSelectTool *ps_tool, PikaDisplay *display, gboolean show_message) { PikaTool *tool = PIKA_TOOL (ps_tool); PikaGuiConfig *config = PIKA_GUI_CONFIG (display->pika->config); PikaImage *image = pika_display_get_image (display); GList *drawables = pika_image_get_selected_drawables (image); PikaDrawable *drawable; if (g_list_length (drawables) != 1) { if (show_message) { if (g_list_length (drawables) > 1) pika_tool_message_literal (tool, display, _("Cannot paint select on multiple layers. Select only one layer.")); else pika_tool_message_literal (tool, display, _("No active drawables.")); } g_list_free (drawables); return FALSE; } drawable = drawables->data; g_list_free (drawables); if (pika_viewable_get_children (PIKA_VIEWABLE (drawable))) { if (show_message) { pika_tool_message_literal (tool, display, _("Cannot paint select on layer groups.")); } return FALSE; } if (! pika_item_is_visible (PIKA_ITEM (drawable)) && ! config->edit_non_visible) { if (show_message) { pika_tool_message_literal (tool, display, _("The active layer is not visible.")); } return FALSE; } return TRUE; } static gboolean pika_paint_select_tool_start (PikaPaintSelectTool *ps_tool, PikaDisplay *display) { PikaTool *tool = PIKA_TOOL (ps_tool); PikaImage *image = pika_display_get_image (display); PikaDrawable *drawable; if (! pika_paint_select_tool_can_paint (ps_tool, display, TRUE)) return FALSE; tool->display = display; g_list_free (tool->drawables); tool->drawables = pika_image_get_selected_drawables (image); drawable = tool->drawables->data; pika_paint_select_tool_init_buffers (ps_tool, image, drawable); pika_paint_select_tool_create_graph (ps_tool); if (! pika_draw_tool_is_active (PIKA_DRAW_TOOL (ps_tool))) pika_draw_tool_start (PIKA_DRAW_TOOL (ps_tool), display); return TRUE; } static gboolean pika_paint_select_tool_key_press (PikaTool *tool, GdkEventKey *kevent, PikaDisplay *display) { return PIKA_TOOL_CLASS (parent_class)->key_press (tool, kevent, display); } static void pika_paint_select_tool_modifier_key (PikaTool *tool, GdkModifierType key, gboolean press, GdkModifierType state, PikaDisplay *display) { } static void pika_paint_select_tool_motion (PikaTool *tool, const PikaCoords *coords, guint32 time, GdkModifierType state, PikaDisplay *display) { PikaPaintSelectTool *ps_tool = PIKA_PAINT_SELECT_TOOL (tool); PikaDrawTool *draw_tool = PIKA_DRAW_TOOL (tool); static guint32 last_time = 0; PIKA_TOOL_CLASS (parent_class)->motion (tool, coords, time, state, display); /* don't let the events come in too fast, ignore below a delay of 100 ms */ if (time - last_time < 100) return; last_time = time; if (state & GDK_BUTTON1_MASK) { gfloat distance = euclidean_distance (coords->x, coords->y, ps_tool->last_pos.x, ps_tool->last_pos.y); if (distance >= 2.f) { pika_draw_tool_pause (draw_tool); pika_tool_control_halt (tool->control); ps_tool->last_pos.x = coords->x; ps_tool->last_pos.y = coords->y; if (pika_paint_select_tool_paint_scribble (ps_tool)) { PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (ps_tool); GeglRectangle local_region; GeglBuffer *result; GTimer *timer; local_region = pika_paint_select_tool_get_local_region (display, coords->x, coords->y, ps_tool->drawable_off_x, ps_tool->drawable_off_y, ps_tool->drawable_width, ps_tool->drawable_height); if (options->mode == PIKA_PAINT_SELECT_MODE_ADD) { gegl_node_set (ps_tool->ps_node, "mode", 0, NULL); gegl_node_set (ps_tool->threshold_node, "value", 0.99, NULL); } else { gegl_node_set (ps_tool->ps_node, "mode", 1, NULL); gegl_node_set (ps_tool->threshold_node, "value", 0.01, NULL); } if (local_region.width < ps_tool->drawable_width || local_region.height < ps_tool->drawable_height) { gegl_node_set (ps_tool->ps_node, "use_local_region", TRUE, "region_x", local_region.x, "region_y", local_region.y, "region_width", local_region.width, "region_height", local_region.height, NULL); } else { gegl_node_set (ps_tool->ps_node, "use_local_region", FALSE, NULL); } gegl_node_set (ps_tool->render_node, "buffer", &result, NULL); timer = g_timer_new ();; gegl_node_process (ps_tool->render_node); g_timer_stop (timer); g_printerr ("processing graph takes %.3f s\n\n", g_timer_elapsed (timer, NULL)); g_timer_destroy (timer); pika_paint_select_tool_update_image_mask (ps_tool, result, ps_tool->drawable_off_x, ps_tool->drawable_off_y, options->mode); g_object_unref (result); } pika_tool_control_activate (tool->control); pika_draw_tool_resume (draw_tool); } } } static void pika_paint_select_tool_oper_update (PikaTool *tool, const PikaCoords *coords, GdkModifierType state, gboolean proximity, PikaDisplay *display) { PikaPaintSelectTool *ps = PIKA_PAINT_SELECT_TOOL (tool); PikaDrawTool *draw_tool = PIKA_DRAW_TOOL (tool); if (proximity) { pika_draw_tool_pause (draw_tool); if (! tool->display || display == tool->display) { ps->last_pos.x = coords->x; ps->last_pos.y = coords->y; } if (! pika_draw_tool_is_active (draw_tool)) pika_draw_tool_start (draw_tool, display); pika_draw_tool_resume (draw_tool); } else if (pika_draw_tool_is_active (draw_tool)) { pika_draw_tool_stop (draw_tool); } } static void pika_paint_select_tool_draw (PikaDrawTool *draw_tool) { PikaPaintSelectTool *paint_select = PIKA_PAINT_SELECT_TOOL (draw_tool); PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (paint_select); gint size = options->stroke_width; pika_draw_tool_add_arc (draw_tool, FALSE, paint_select->last_pos.x - (size / 2.0), paint_select->last_pos.y - (size / 2.0), size, size, 0.0, (2.0 * G_PI)); } static void pika_paint_select_tool_options_notify (PikaTool *tool, PikaToolOptions *options, const GParamSpec *pspec) { PikaPaintSelectTool *ps_tool = PIKA_PAINT_SELECT_TOOL (tool); if (g_strcmp0 (pspec->name, "stroke-width") == 0) { /* This triggers a redraw of the tool pointer, especially useful * here when we change the pen size with on-canvas interaction. */ pika_draw_tool_pause (PIKA_DRAW_TOOL (tool)); pika_draw_tool_resume (PIKA_DRAW_TOOL (tool)); } if (! tool->display) return; if (! strcmp (pspec->name, "stroke-width") && ps_tool->scribble) { g_object_unref (ps_tool->scribble); ps_tool->scribble = NULL; } else if (! strcmp (pspec->name, "show-scribbles")) { pika_paint_select_tool_toggle_scribbles_visibility (ps_tool); } } static void pika_paint_select_tool_halt (PikaPaintSelectTool *ps_tool) { PikaTool *tool = PIKA_TOOL (ps_tool); g_clear_object (&ps_tool->trimap); g_clear_object (&ps_tool->graph); g_clear_object (&ps_tool->scribble); ps_tool->drawable = NULL; ps_tool->render_node = NULL; ps_tool->ps_node = NULL; ps_tool->image_mask = NULL; if (tool->display) { pika_display_shell_set_mask (pika_display_get_shell (tool->display), NULL, 0, 0, NULL, FALSE); pika_image_flush (pika_display_get_image (tool->display)); } tool->display = NULL; g_list_free (tool->drawables); tool->drawables = NULL; } static void pika_paint_select_tool_update_image_mask (PikaPaintSelectTool *ps_tool, GeglBuffer *buffer, gint offset_x, gint offset_y, PikaPaintSelectMode mode) { PikaTool *tool = PIKA_TOOL (ps_tool); PikaChannelOps op; if (tool->display) { PikaImage *image = pika_display_get_image (tool->display); if (mode == PIKA_PAINT_SELECT_MODE_ADD) op = PIKA_CHANNEL_OP_ADD; else op = PIKA_CHANNEL_OP_SUBTRACT; pika_channel_select_buffer (pika_image_get_mask (image), C_("command", "Paint Select"), buffer, offset_x, offset_y, op, FALSE, 0, 0); pika_image_flush (image); } } static void pika_paint_select_tool_init_buffers (PikaPaintSelectTool *ps_tool, PikaImage *image, PikaDrawable *drawable) { PikaChannel *channel; GeglColor *grey = gegl_color_new ("#888"); g_return_if_fail (ps_tool->trimap == NULL); g_return_if_fail (ps_tool->drawable == NULL); pika_item_get_offset (PIKA_ITEM (drawable), &ps_tool->drawable_off_x, &ps_tool->drawable_off_y); ps_tool->drawable_width = pika_item_get_width (PIKA_ITEM (drawable)); ps_tool->drawable_height = pika_item_get_height (PIKA_ITEM (drawable)); ps_tool->drawable = pika_drawable_get_buffer (drawable); channel = pika_image_get_mask (image); ps_tool->image_mask = pika_drawable_get_buffer (PIKA_DRAWABLE (channel)); ps_tool->trimap = gegl_buffer_new (gegl_buffer_get_extent (ps_tool->drawable), babl_format ("Y float")); gegl_buffer_set_color (ps_tool->trimap, NULL, grey); g_object_unref (grey); } static void pika_paint_select_tool_init_scribble (PikaPaintSelectTool *ps_tool) { PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (ps_tool); PikaScanConvert *scan_convert; PikaVector2 points[2]; gint size = options->stroke_width; gint radius = size / 2; GeglRectangle square = {0, 0, size, size}; if (ps_tool->scribble) g_object_unref (ps_tool->scribble); ps_tool->scribble = gegl_buffer_linear_new (&square, babl_format ("Y float")); points[0].x = points[1].x = radius; points[0].y = points[1].y = radius; points[1].x += 0.01; points[1].y += 0.01; scan_convert = pika_scan_convert_new (); pika_scan_convert_add_polyline (scan_convert, 2, points, FALSE); pika_scan_convert_stroke (scan_convert, size, PIKA_JOIN_ROUND, PIKA_CAP_ROUND, 10.0, 0.0, NULL); pika_scan_convert_compose (scan_convert, ps_tool->scribble, 0, 0); pika_scan_convert_free (scan_convert); } static gboolean pika_paint_select_tool_paint_scribble (PikaPaintSelectTool *ps_tool) { PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (ps_tool); gint size = options->stroke_width; gint radius = size / 2; GeglRectangle trimap_area; GeglRectangle mask_area; GeglBufferIterator *iter; gfloat scribble_value; gboolean overlap = FALSE; if (! ps_tool->scribble) { pika_paint_select_tool_init_scribble (ps_tool); } /* add the scribble to the trimap buffer and check the image mask to see if an optimization should be triggered. */ if (options->mode == PIKA_PAINT_SELECT_MODE_ADD) { scribble_value = 1.f; } else { scribble_value = 0.f; } iter = gegl_buffer_iterator_new (ps_tool->scribble, NULL, 0, babl_format ("Y float"), GEGL_ACCESS_READ, GEGL_ABYSS_NONE, 3); mask_area = *gegl_buffer_get_extent (ps_tool->scribble); mask_area.x = ps_tool->last_pos.x - radius; mask_area.y = ps_tool->last_pos.y - radius; gegl_rectangle_copy (&trimap_area, &mask_area); trimap_area.x = mask_area.x - ps_tool->drawable_off_x; trimap_area.y = mask_area.y - ps_tool->drawable_off_y; gegl_buffer_iterator_add (iter, ps_tool->trimap, &trimap_area, 0, babl_format ("Y float"), GEGL_ACCESS_READWRITE, GEGL_ABYSS_NONE); gegl_buffer_iterator_add (iter, ps_tool->image_mask, &mask_area, 0, babl_format ("Y float"), GEGL_ACCESS_READ, GEGL_ABYSS_NONE); while (gegl_buffer_iterator_next (iter)) { gfloat *scribble_pix = iter->items[0].data; gfloat *trimap_pix = iter->items[1].data; gfloat *mask_pix = iter->items[2].data; gint n_pixels = iter->length; while (n_pixels--) { if (*scribble_pix) { *trimap_pix = scribble_value; if (*mask_pix != scribble_value) overlap = TRUE; } scribble_pix++; trimap_pix++; mask_pix++; } } pika_paint_select_tool_toggle_scribbles_visibility (ps_tool); return overlap; } static void pika_paint_select_tool_create_graph (PikaPaintSelectTool *ps_tool) { GeglNode *t; /* trimap */ GeglNode *m; /* mask */ GeglNode *d; /* drawable */ GeglNode *crop; GeglNode *translate = NULL; ps_tool->graph = gegl_node_new (); m = gegl_node_new_child (ps_tool->graph, "operation", "gegl:buffer-source", "buffer", ps_tool->image_mask, NULL); crop = gegl_node_new_child (ps_tool->graph, "operation", "gegl:crop", "x", (gdouble) ps_tool->drawable_off_x, "y", (gdouble) ps_tool->drawable_off_y, "width", (gdouble) gegl_buffer_get_width (ps_tool->drawable), "height", (gdouble) gegl_buffer_get_height (ps_tool->drawable), NULL); ps_tool->threshold_node = gegl_node_new_child (ps_tool->graph, "operation", "gegl:threshold", NULL); if (ps_tool->drawable_off_x || ps_tool->drawable_off_y) { translate = gegl_node_new_child (ps_tool->graph, "operation", "gegl:translate", "x", -1.0 * ps_tool->drawable_off_x, "y", -1.0 * ps_tool->drawable_off_y, NULL); } d = gegl_node_new_child (ps_tool->graph, "operation", "gegl:buffer-source", "buffer", ps_tool->drawable, NULL); t = gegl_node_new_child (ps_tool->graph, "operation", "gegl:buffer-source", "buffer", ps_tool->trimap, NULL); ps_tool->ps_node = gegl_node_new_child (ps_tool->graph, "operation", "gegl:paint-select", NULL); ps_tool->render_node = gegl_node_new_child (ps_tool->graph, "operation", "gegl:buffer-sink", NULL); gegl_node_link_many (m, ps_tool->threshold_node, crop, NULL); if (translate) gegl_node_link_many (crop, translate, ps_tool->ps_node, ps_tool->render_node, NULL); else gegl_node_link_many (crop, ps_tool->ps_node, ps_tool->render_node, NULL); gegl_node_connect (d, "output", ps_tool->ps_node, "aux"); gegl_node_connect (t, "output", ps_tool->ps_node, "aux2"); } static void pika_paint_select_tool_toggle_scribbles_visibility (PikaPaintSelectTool *ps_tool) { PikaTool *tool = PIKA_TOOL (ps_tool); PikaPaintSelectOptions *options = PIKA_PAINT_SELECT_TOOL_GET_OPTIONS (tool); if (options->show_scribbles) { const PikaRGB black = {0.0, 0.0, 0.0, 1.0}; pika_display_shell_set_mask (pika_display_get_shell (tool->display), ps_tool->trimap, ps_tool->drawable_off_x, ps_tool->drawable_off_y, &black, TRUE); } else { pika_display_shell_set_mask (pika_display_get_shell (tool->display), NULL, 0, 0, NULL, FALSE); } } static GeglRectangle pika_paint_select_tool_get_local_region (PikaDisplay *display, gint brush_x, gint brush_y, gint drawable_off_x, gint drawable_off_y, gint drawable_width, gint drawable_height) { PikaDisplayShell *shell; GeglRectangle brush_window; GeglRectangle drawable_region; GeglRectangle viewport; GeglRectangle local_region; gdouble x, y, w, h; shell = pika_display_get_shell (display); pika_display_shell_scroll_get_viewport (shell, &x, &y, &w, &h); viewport.x = (gint) x; viewport.y = (gint) y; viewport.width = (gint) w; viewport.height = (gint) h; brush_window.x = brush_x - viewport.width / 2; brush_window.y = brush_y - viewport.height / 2; brush_window.width = viewport.width; brush_window.height = viewport.height; gegl_rectangle_bounding_box (&local_region, &brush_window, &viewport); drawable_region.x = drawable_off_x; drawable_region.y = drawable_off_y; drawable_region.width = drawable_width; drawable_region.height = drawable_height; gegl_rectangle_intersect (&local_region, &local_region, &drawable_region); local_region.x -= drawable_off_x; local_region.y -= drawable_off_y; g_printerr ("local region: (%d,%d) %d x %d\n", local_region.x, local_region.y, local_region.width, local_region.height); return local_region; } static gfloat euclidean_distance (gint x1, gint y1, gint x2, gint y2) { return sqrtf ((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); }