/* GIMP - The GNU Image Manipulation Program * * gimpwarptool.c * Copyright (C) 2011 Michael Muré * * 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 "libgimpwidgets/gimpwidgets.h" #include "tools-types.h" #include "config/gimpdisplayconfig.h" #include "config/gimpguiconfig.h" #include "gegl/gimp-gegl-apply-operation.h" #include "core/gimp.h" #include "core/gimpchannel.h" #include "core/gimpdrawablefilter.h" #include "core/gimpimage.h" #include "core/gimplayer.h" #include "core/gimpprogress.h" #include "core/gimpprojection.h" #include "core/gimpsubprogress.h" #include "core/gimptoolinfo.h" #include "widgets/gimphelp-ids.h" #include "widgets/gimpwidgets-utils.h" #include "display/gimpdisplay.h" #include "gimpwarptool.h" #include "gimpwarpoptions.h" #include "gimptoolcontrol.h" #include "gimptools-utils.h" #include "gimp-intl.h" #define STROKE_TIMER_MAX_FPS 20 #define PREVIEW_SAMPLER GEGL_SAMPLER_NEAREST static void gimp_warp_tool_constructed (GObject *object); static void gimp_warp_tool_control (GimpTool *tool, GimpToolAction action, GimpDisplay *display); static void gimp_warp_tool_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonPressType press_type, GimpDisplay *display); static void gimp_warp_tool_button_release (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonReleaseType release_type, GimpDisplay *display); static void gimp_warp_tool_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display); static gboolean gimp_warp_tool_key_press (GimpTool *tool, GdkEventKey *kevent, GimpDisplay *display); static void gimp_warp_tool_oper_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, gboolean proximity, GimpDisplay *display); static void gimp_warp_tool_cursor_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, GimpDisplay *display); const gchar * gimp_warp_tool_can_undo (GimpTool *tool, GimpDisplay *display); const gchar * gimp_warp_tool_can_redo (GimpTool *tool, GimpDisplay *display); static gboolean gimp_warp_tool_undo (GimpTool *tool, GimpDisplay *display); static gboolean gimp_warp_tool_redo (GimpTool *tool, GimpDisplay *display); static void gimp_warp_tool_options_notify (GimpTool *tool, GimpToolOptions *options, const GParamSpec *pspec); static void gimp_warp_tool_draw (GimpDrawTool *draw_tool); static void gimp_warp_tool_cursor_notify (GimpDisplayConfig *config, GParamSpec *pspec, GimpWarpTool *wt); static gboolean gimp_warp_tool_can_stroke (GimpWarpTool *wt, GimpDisplay *display, gboolean show_message); static gboolean gimp_warp_tool_start (GimpWarpTool *wt, GimpDisplay *display); static void gimp_warp_tool_halt (GimpWarpTool *wt); static void gimp_warp_tool_commit (GimpWarpTool *wt); static void gimp_warp_tool_start_stroke_timer (GimpWarpTool *wt); static void gimp_warp_tool_stop_stroke_timer (GimpWarpTool *wt); static gboolean gimp_warp_tool_stroke_timer (GimpWarpTool *wt); static void gimp_warp_tool_create_graph (GimpWarpTool *wt); static void gimp_warp_tool_create_filter (GimpWarpTool *wt, GimpDrawable *drawable); static void gimp_warp_tool_set_sampler (GimpWarpTool *wt, gboolean commit); static GeglRectangle gimp_warp_tool_get_stroke_bounds (GeglNode *node); static GeglRectangle gimp_warp_tool_get_node_bounds (GeglNode *node); static void gimp_warp_tool_clear_node_bounds (GeglNode *node); static GeglRectangle gimp_warp_tool_get_invalidated_by_change (GimpWarpTool *wt, const GeglRectangle *area); static void gimp_warp_tool_update_bounds (GimpWarpTool *wt); static void gimp_warp_tool_update_area (GimpWarpTool *wt, const GeglRectangle *area, gboolean synchronous); static void gimp_warp_tool_update_stroke (GimpWarpTool *wt, GeglNode *node); static void gimp_warp_tool_stroke_append (GimpWarpTool *wt, gchar type, gdouble x, gdouble y); static void gimp_warp_tool_filter_flush (GimpDrawableFilter *filter, GimpTool *tool); static void gimp_warp_tool_add_op (GimpWarpTool *wt, GeglNode *op); static void gimp_warp_tool_remove_op (GimpWarpTool *wt, GeglNode *op); static void gimp_warp_tool_free_op (GeglNode *op); static void gimp_warp_tool_animate (GimpWarpTool *wt); G_DEFINE_TYPE (GimpWarpTool, gimp_warp_tool, GIMP_TYPE_DRAW_TOOL) #define parent_class gimp_warp_tool_parent_class void gimp_warp_tool_register (GimpToolRegisterCallback callback, gpointer data) { (* callback) (GIMP_TYPE_WARP_TOOL, GIMP_TYPE_WARP_OPTIONS, gimp_warp_options_gui, 0, "gimp-warp-tool", _("Warp Transform"), _("Warp Transform: Deform with different tools"), N_("_Warp Transform"), "W", NULL, GIMP_HELP_TOOL_WARP, GIMP_ICON_TOOL_WARP, data); } static void gimp_warp_tool_class_init (GimpWarpToolClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass); GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass); object_class->constructed = gimp_warp_tool_constructed; tool_class->control = gimp_warp_tool_control; tool_class->button_press = gimp_warp_tool_button_press; tool_class->button_release = gimp_warp_tool_button_release; tool_class->motion = gimp_warp_tool_motion; tool_class->key_press = gimp_warp_tool_key_press; tool_class->oper_update = gimp_warp_tool_oper_update; tool_class->cursor_update = gimp_warp_tool_cursor_update; tool_class->can_undo = gimp_warp_tool_can_undo; tool_class->can_redo = gimp_warp_tool_can_redo; tool_class->undo = gimp_warp_tool_undo; tool_class->redo = gimp_warp_tool_redo; tool_class->options_notify = gimp_warp_tool_options_notify; draw_tool_class->draw = gimp_warp_tool_draw; } static void gimp_warp_tool_init (GimpWarpTool *self) { GimpTool *tool = GIMP_TOOL (self); gimp_tool_control_set_motion_mode (tool->control, GIMP_MOTION_MODE_EXACT); gimp_tool_control_set_scroll_lock (tool->control, TRUE); gimp_tool_control_set_preserve (tool->control, FALSE); gimp_tool_control_set_dirty_mask (tool->control, GIMP_DIRTY_IMAGE | GIMP_DIRTY_DRAWABLE | GIMP_DIRTY_SELECTION | GIMP_DIRTY_ACTIVE_DRAWABLE); gimp_tool_control_set_dirty_action (tool->control, GIMP_TOOL_ACTION_COMMIT); gimp_tool_control_set_wants_click (tool->control, TRUE); gimp_tool_control_set_precision (tool->control, GIMP_CURSOR_PRECISION_SUBPIXEL); gimp_tool_control_set_tool_cursor (tool->control, GIMP_TOOL_CURSOR_WARP); gimp_tool_control_set_action_size (tool->control, "tools/tools-warp-effect-size-set"); gimp_tool_control_set_action_hardness (tool->control, "tools/tools-warp-effect-hardness-set"); self->show_cursor = TRUE; self->draw_brush = TRUE; self->snap_brush = FALSE; } static void gimp_warp_tool_constructed (GObject *object) { GimpWarpTool *wt = GIMP_WARP_TOOL (object); GimpTool *tool = GIMP_TOOL (object); GimpDisplayConfig *display_config; G_OBJECT_CLASS (parent_class)->constructed (object); display_config = GIMP_DISPLAY_CONFIG (tool->tool_info->gimp->config); wt->show_cursor = display_config->show_paint_tool_cursor; wt->draw_brush = display_config->show_brush_outline; wt->snap_brush = display_config->snap_brush_outline; g_signal_connect_object (display_config, "notify::show-paint-tool-cursor", G_CALLBACK (gimp_warp_tool_cursor_notify), wt, 0); g_signal_connect_object (display_config, "notify::show-brush-outline", G_CALLBACK (gimp_warp_tool_cursor_notify), wt, 0); g_signal_connect_object (display_config, "notify::snap-brush-outline", G_CALLBACK (gimp_warp_tool_cursor_notify), wt, 0); } static void gimp_warp_tool_control (GimpTool *tool, GimpToolAction action, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); switch (action) { case GIMP_TOOL_ACTION_PAUSE: case GIMP_TOOL_ACTION_RESUME: break; case GIMP_TOOL_ACTION_HALT: gimp_warp_tool_halt (wt); break; case GIMP_TOOL_ACTION_COMMIT: gimp_warp_tool_commit (wt); break; } GIMP_TOOL_CLASS (parent_class)->control (tool, action, display); } static void gimp_warp_tool_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonPressType press_type, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GeglNode *new_op; gint off_x, off_y; if (tool->display && display != tool->display) gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display); if (! tool->display) { if (! gimp_warp_tool_start (wt, display)) return; } if (! gimp_warp_tool_can_stroke (wt, display, TRUE)) return; wt->current_stroke = gegl_path_new (); wt->last_pos.x = coords->x; wt->last_pos.y = coords->y; wt->total_dist = 0.0; new_op = gegl_node_new_child (NULL, "operation", "gegl:warp", "behavior", options->behavior, "size", options->effect_size, "hardness", options->effect_hardness / 100.0, "strength", options->effect_strength, /* we implement spacing manually. * anything > 1 will do. */ "spacing", 10.0, "stroke", wt->current_stroke, NULL); gimp_warp_tool_add_op (wt, new_op); g_object_unref (new_op); gimp_item_get_offset (GIMP_ITEM (tool->drawable), &off_x, &off_y); gimp_warp_tool_stroke_append (wt, 'M', wt->last_pos.x - off_x, wt->last_pos.y - off_y); gimp_warp_tool_start_stroke_timer (wt); gimp_tool_control_activate (tool->control); } void gimp_warp_tool_button_release (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonReleaseType release_type, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); gimp_draw_tool_pause (GIMP_DRAW_TOOL (wt)); gimp_tool_control_halt (tool->control); gimp_warp_tool_stop_stroke_timer (wt); #ifdef WARP_DEBUG g_printerr ("%s\n", gegl_path_to_string (wt->current_stroke)); #endif g_clear_object (&wt->current_stroke); if (release_type == GIMP_BUTTON_RELEASE_CANCEL) { gimp_warp_tool_undo (tool, display); /* the just undone stroke has no business on the redo stack */ gimp_warp_tool_free_op (wt->redo_stack->data); wt->redo_stack = g_list_remove_link (wt->redo_stack, wt->redo_stack); } else { if (wt->redo_stack) { /* the redo stack becomes invalid by actually doing a stroke */ g_list_free_full (wt->redo_stack, (GDestroyNotify) gimp_warp_tool_free_op); wt->redo_stack = NULL; } gimp_tool_push_status (tool, tool->display, _("Press ENTER to commit the transform")); } gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); /* update the undo actions / menu items */ gimp_image_flush (gimp_display_get_image (GIMP_TOOL (wt)->display)); } static void gimp_warp_tool_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GimpVector2 old_cursor_pos; GimpVector2 delta; gdouble dist; gdouble step; gboolean stroke_changed = FALSE; if (! wt->snap_brush) gimp_draw_tool_pause (GIMP_DRAW_TOOL (wt)); old_cursor_pos = wt->cursor_pos; wt->cursor_pos.x = coords->x; wt->cursor_pos.y = coords->y; gimp_vector2_sub (&delta, &wt->cursor_pos, &old_cursor_pos); dist = gimp_vector2_length (&delta); step = options->effect_size * options->stroke_spacing / 100.0; while (wt->total_dist + dist >= step) { gdouble diff = step - wt->total_dist; gimp_vector2_mul (&delta, diff / dist); gimp_vector2_add (&old_cursor_pos, &old_cursor_pos, &delta); gimp_vector2_sub (&delta, &wt->cursor_pos, &old_cursor_pos); dist -= diff; wt->last_pos = old_cursor_pos; wt->total_dist = 0.0; if (options->stroke_during_motion) { gint off_x, off_y; if (! stroke_changed) { stroke_changed = TRUE; gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool)); } gimp_item_get_offset (GIMP_ITEM (tool->drawable), &off_x, &off_y); gimp_warp_tool_stroke_append (wt, 'L', wt->last_pos.x - off_x, wt->last_pos.y - off_y); } } wt->total_dist += dist; if (stroke_changed) { gimp_warp_tool_start_stroke_timer (wt); gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); } if (! wt->snap_brush) gimp_draw_tool_resume (GIMP_DRAW_TOOL (wt)); } static gboolean gimp_warp_tool_key_press (GimpTool *tool, GdkEventKey *kevent, GimpDisplay *display) { switch (kevent->keyval) { case GDK_KEY_BackSpace: return TRUE; case GDK_KEY_Return: case GDK_KEY_KP_Enter: case GDK_KEY_ISO_Enter: gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display); return TRUE; case GDK_KEY_Escape: gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, display); return TRUE; default: break; } return FALSE; } static void gimp_warp_tool_oper_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, gboolean proximity, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool); if (proximity) { gimp_draw_tool_pause (draw_tool); if (! tool->display || display == tool->display) { wt->cursor_pos.x = coords->x; wt->cursor_pos.y = coords->y; wt->last_pos = wt->cursor_pos; } if (! gimp_draw_tool_is_active (draw_tool)) gimp_draw_tool_start (draw_tool, display); gimp_draw_tool_resume (draw_tool); } else if (gimp_draw_tool_is_active (draw_tool)) { gimp_draw_tool_stop (draw_tool); } } static void gimp_warp_tool_cursor_update (GimpTool *tool, const GimpCoords *coords, GdkModifierType state, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (tool); GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_NONE; if (! gimp_warp_tool_can_stroke (wt, display, FALSE)) { modifier = GIMP_CURSOR_MODIFIER_BAD; } else if (display == tool->display) { #if 0 /* FIXME have better cursors */ switch (options->behavior) { case GIMP_WARP_BEHAVIOR_MOVE: case GIMP_WARP_BEHAVIOR_GROW: case GIMP_WARP_BEHAVIOR_SHRINK: case GIMP_WARP_BEHAVIOR_SWIRL_CW: case GIMP_WARP_BEHAVIOR_SWIRL_CCW: case GIMP_WARP_BEHAVIOR_ERASE: case GIMP_WARP_BEHAVIOR_SMOOTH: modifier = GIMP_CURSOR_MODIFIER_MOVE; break; } #else (void) options; #endif } if (! wt->show_cursor && modifier != GIMP_CURSOR_MODIFIER_BAD) { gimp_tool_set_cursor (tool, display, GIMP_CURSOR_NONE, GIMP_TOOL_CURSOR_NONE, GIMP_CURSOR_MODIFIER_NONE); return; } gimp_tool_control_set_cursor_modifier (tool->control, modifier); GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display); } const gchar * gimp_warp_tool_can_undo (GimpTool *tool, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GeglNode *to_delete; const gchar *type; if (! wt->render_node) return NULL; to_delete = gegl_node_get_producer (wt->render_node, "aux", NULL); type = gegl_node_get_operation (to_delete); if (strcmp (type, "gegl:warp")) return NULL; return _("Warp Tool Stroke"); } const gchar * gimp_warp_tool_can_redo (GimpTool *tool, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); if (! wt->render_node || ! wt->redo_stack) return NULL; return _("Warp Tool Stroke"); } static gboolean gimp_warp_tool_undo (GimpTool *tool, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GeglNode *to_delete; GeglNode *prev_node; to_delete = gegl_node_get_producer (wt->render_node, "aux", NULL); wt->redo_stack = g_list_prepend (wt->redo_stack, to_delete); /* we connect render_node to the previous node, but keep the current node * in the graph, connected to the previous node as well, so that it doesn't * get invalidated and maintains its cache. this way, redoing it doesn't * require reprocessing. */ prev_node = gegl_node_get_producer (to_delete, "input", NULL); gegl_node_connect_to (prev_node, "output", wt->render_node, "aux"); gimp_warp_tool_update_bounds (wt); gimp_warp_tool_update_stroke (wt, to_delete); return TRUE; } static gboolean gimp_warp_tool_redo (GimpTool *tool, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GeglNode *to_add; to_add = wt->redo_stack->data; gegl_node_connect_to (to_add, "output", wt->render_node, "aux"); wt->redo_stack = g_list_remove_link (wt->redo_stack, wt->redo_stack); gimp_warp_tool_update_bounds (wt); gimp_warp_tool_update_stroke (wt, to_add); return TRUE; } static void gimp_warp_tool_options_notify (GimpTool *tool, GimpToolOptions *options, const GParamSpec *pspec) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GimpWarpOptions *wt_options = GIMP_WARP_OPTIONS (options); GIMP_TOOL_CLASS (parent_class)->options_notify (tool, options, pspec); if (! strcmp (pspec->name, "effect-size")) { gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool)); gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool)); } else if (! strcmp (pspec->name, "interpolation")) { gimp_warp_tool_set_sampler (wt, /* commit = */ FALSE); } else if (! strcmp (pspec->name, "abyss-policy")) { if (wt->render_node) { gegl_node_set (wt->render_node, "abyss-policy", wt_options->abyss_policy, NULL); gimp_warp_tool_update_stroke (wt, NULL); } } else if (! strcmp (pspec->name, "high-quality-preview")) { gimp_warp_tool_set_sampler (wt, /* commit = */ FALSE); } } static void gimp_warp_tool_draw (GimpDrawTool *draw_tool) { GimpWarpTool *wt = GIMP_WARP_TOOL (draw_tool); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); gdouble x, y; if (wt->snap_brush) { x = wt->last_pos.x; y = wt->last_pos.y; } else { x = wt->cursor_pos.x; y = wt->cursor_pos.y; } if (wt->draw_brush) { gimp_draw_tool_add_arc (draw_tool, FALSE, x - options->effect_size * 0.5, y - options->effect_size * 0.5, options->effect_size, options->effect_size, 0.0, 2.0 * G_PI); } else if (! wt->show_cursor) { /* don't leave the user without any indication and draw * a fallback crosshair */ gimp_draw_tool_add_handle (draw_tool, GIMP_HANDLE_CROSSHAIR, x, y, GIMP_TOOL_HANDLE_SIZE_CROSSHAIR, GIMP_TOOL_HANDLE_SIZE_CROSSHAIR, GIMP_HANDLE_ANCHOR_CENTER); } } static void gimp_warp_tool_cursor_notify (GimpDisplayConfig *config, GParamSpec *pspec, GimpWarpTool *wt) { gimp_draw_tool_pause (GIMP_DRAW_TOOL (wt)); wt->show_cursor = config->show_paint_tool_cursor; wt->draw_brush = config->show_brush_outline; wt->snap_brush = config->snap_brush_outline; gimp_draw_tool_resume (GIMP_DRAW_TOOL (wt)); } static gboolean gimp_warp_tool_can_stroke (GimpWarpTool *wt, GimpDisplay *display, gboolean show_message) { GimpTool *tool = GIMP_TOOL (wt); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GimpGuiConfig *config = GIMP_GUI_CONFIG (display->gimp->config); GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable))) { if (show_message) { gimp_tool_message_literal (tool, display, _("Cannot warp layer groups.")); } return FALSE; } if (gimp_item_is_content_locked (GIMP_ITEM (drawable))) { if (show_message) { gimp_tool_message_literal (tool, display, _("The active layer's pixels are locked.")); gimp_tools_blink_lock_box (display->gimp, GIMP_ITEM (drawable)); } return FALSE; } if (! gimp_item_is_visible (GIMP_ITEM (drawable)) && ! config->edit_non_visible) { if (show_message) { gimp_tool_message_literal (tool, display, _("The active layer is not visible.")); } return FALSE; } if (! options->stroke_during_motion && ! options->stroke_periodically) { if (show_message) { gimp_tool_message_literal (tool, display, _("No stroke events selected.")); gimp_widget_blink (options->stroke_frame); } return FALSE; } if (! wt->filter || ! gimp_tool_can_undo (tool, display)) { const gchar *message = NULL; switch (options->behavior) { case GIMP_WARP_BEHAVIOR_MOVE: case GIMP_WARP_BEHAVIOR_GROW: case GIMP_WARP_BEHAVIOR_SHRINK: case GIMP_WARP_BEHAVIOR_SWIRL_CW: case GIMP_WARP_BEHAVIOR_SWIRL_CCW: break; case GIMP_WARP_BEHAVIOR_ERASE: message = _("No warp to erase."); break; case GIMP_WARP_BEHAVIOR_SMOOTH: message = _("No warp to smooth."); break; } if (message) { if (show_message) { gimp_tool_message_literal (tool, display, message); gimp_widget_blink (options->behavior_combo); } return FALSE; } } return TRUE; } static gboolean gimp_warp_tool_start (GimpWarpTool *wt, GimpDisplay *display) { GimpTool *tool = GIMP_TOOL (wt); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); const Babl *format; GeglRectangle bbox; if (! gimp_warp_tool_can_stroke (wt, display, TRUE)) return FALSE; tool->display = display; tool->drawable = drawable; /* Create the coords buffer, with the size of the selection */ format = babl_format_n (babl_type ("float"), 2); gimp_item_mask_intersect (GIMP_ITEM (drawable), &bbox.x, &bbox.y, &bbox.width, &bbox.height); #ifdef WARP_DEBUG g_printerr ("Initialize coordinate buffer (%d,%d) at %d,%d\n", bbox.width, bbox.height, bbox.x, bbox.y); #endif wt->coords_buffer = gegl_buffer_new (&bbox, format); gimp_warp_tool_create_filter (wt, drawable); if (! gimp_draw_tool_is_active (GIMP_DRAW_TOOL (wt))) gimp_draw_tool_start (GIMP_DRAW_TOOL (wt), display); if (options->animate_button) { g_signal_connect_swapped (options->animate_button, "clicked", G_CALLBACK (gimp_warp_tool_animate), wt); gtk_widget_set_sensitive (options->animate_button, TRUE); } return TRUE; } static void gimp_warp_tool_halt (GimpWarpTool *wt) { GimpTool *tool = GIMP_TOOL (wt); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); g_clear_object (&wt->coords_buffer); g_clear_object (&wt->graph); wt->render_node = NULL; if (wt->filter) { gimp_drawable_filter_abort (wt->filter); g_clear_object (&wt->filter); gimp_image_flush (gimp_display_get_image (tool->display)); } if (wt->redo_stack) { g_list_free (wt->redo_stack); wt->redo_stack = NULL; } tool->display = NULL; tool->drawable = NULL; if (gimp_draw_tool_is_active (GIMP_DRAW_TOOL (wt))) gimp_draw_tool_stop (GIMP_DRAW_TOOL (wt)); if (options->animate_button) { gtk_widget_set_sensitive (options->animate_button, FALSE); g_signal_handlers_disconnect_by_func (options->animate_button, gimp_warp_tool_animate, wt); } } static void gimp_warp_tool_commit (GimpWarpTool *wt) { GimpTool *tool = GIMP_TOOL (wt); /* don't commit a nop */ if (tool->display && gimp_tool_can_undo (tool, tool->display)) { gimp_tool_control_push_preserve (tool->control, TRUE); gimp_warp_tool_set_sampler (wt, /* commit = */ TRUE); gimp_drawable_filter_commit (wt->filter, GIMP_PROGRESS (tool), FALSE); g_clear_object (&wt->filter); gimp_tool_control_pop_preserve (tool->control); gimp_image_flush (gimp_display_get_image (tool->display)); } } static void gimp_warp_tool_start_stroke_timer (GimpWarpTool *wt) { GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); gimp_warp_tool_stop_stroke_timer (wt); if (options->stroke_periodically && options->stroke_periodically_rate > 0.0 && ! (options->behavior == GIMP_WARP_BEHAVIOR_MOVE && options->stroke_during_motion)) { gdouble fps; fps = STROKE_TIMER_MAX_FPS * options->stroke_periodically_rate / 100.0; wt->stroke_timer = g_timeout_add (1000.0 / fps, (GSourceFunc) gimp_warp_tool_stroke_timer, wt); } } static void gimp_warp_tool_stop_stroke_timer (GimpWarpTool *wt) { if (wt->stroke_timer) g_source_remove (wt->stroke_timer); wt->stroke_timer = 0; } static gboolean gimp_warp_tool_stroke_timer (GimpWarpTool *wt) { GimpTool *tool = GIMP_TOOL (wt); gint off_x, off_y; gimp_item_get_offset (GIMP_ITEM (tool->drawable), &off_x, &off_y); gimp_warp_tool_stroke_append (wt, 'L', wt->last_pos.x - off_x, wt->last_pos.y - off_y); return TRUE; } static void gimp_warp_tool_create_graph (GimpWarpTool *wt) { GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GeglNode *graph; /* Wrapper to be returned */ GeglNode *input, *output; /* Proxy nodes */ GeglNode *coords, *render; /* Render nodes */ /* render_node is not supposed to be recreated */ g_return_if_fail (wt->graph == NULL); graph = gegl_node_new (); input = gegl_node_get_input_proxy (graph, "input"); output = gegl_node_get_output_proxy (graph, "output"); coords = gegl_node_new_child (graph, "operation", "gegl:buffer-source", "buffer", wt->coords_buffer, NULL); render = gegl_node_new_child (graph, "operation", "gegl:map-relative", "abyss-policy", options->abyss_policy, NULL); gegl_node_connect_to (input, "output", render, "input"); gegl_node_connect_to (coords, "output", render, "aux"); gegl_node_connect_to (render, "output", output, "input"); wt->graph = graph; wt->render_node = render; } static void gimp_warp_tool_create_filter (GimpWarpTool *wt, GimpDrawable *drawable) { if (! wt->graph) gimp_warp_tool_create_graph (wt); gimp_warp_tool_set_sampler (wt, /* commit = */ FALSE); wt->filter = gimp_drawable_filter_new (drawable, _("Warp transform"), wt->graph, GIMP_ICON_TOOL_WARP); gimp_drawable_filter_set_region (wt->filter, GIMP_FILTER_REGION_DRAWABLE); #if 0 g_object_set (wt->filter, "gegl-caching", TRUE, NULL); #endif g_signal_connect (wt->filter, "flush", G_CALLBACK (gimp_warp_tool_filter_flush), wt); } static void gimp_warp_tool_set_sampler (GimpWarpTool *wt, gboolean commit) { GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GeglSamplerType sampler; GeglSamplerType old_sampler; if (! wt->render_node) return; if (commit || options->high_quality_preview) sampler = (GeglSamplerType) options->interpolation; else sampler = PREVIEW_SAMPLER; gegl_node_get (wt->render_node, "sampler-type", &old_sampler, NULL); if (sampler != old_sampler) { gegl_node_set (wt->render_node, "sampler-type", sampler, NULL); gimp_warp_tool_update_bounds (wt); gimp_warp_tool_update_stroke (wt, NULL); } } static GeglRectangle gimp_warp_tool_get_stroke_bounds (GeglNode *node) { GeglRectangle bbox = {0, 0, 0, 0}; GeglPath *stroke; gdouble size; gegl_node_get (node, "stroke", &stroke, "size", &size, NULL); if (stroke) { gdouble min_x; gdouble max_x; gdouble min_y; gdouble max_y; gegl_path_get_bounds (stroke, &min_x, &max_x, &min_y, &max_y); g_object_unref (stroke); bbox.x = floor (min_x - size * 0.5); bbox.y = floor (min_y - size * 0.5); bbox.width = ceil (max_x + size * 0.5) - bbox.x; bbox.height = ceil (max_y + size * 0.5) - bbox.y; } return bbox; } static GeglRectangle gimp_warp_tool_get_node_bounds (GeglNode *node) { GeglRectangle *bounds; if (! node || strcmp (gegl_node_get_operation (node), "gegl:warp")) return *GEGL_RECTANGLE (0, 0, 0, 0); bounds = g_object_get_data (G_OBJECT (node), "gimp-warp-tool-bounds"); if (! bounds) { GeglNode *input_node; GeglRectangle input_bounds; GeglRectangle stroke_bounds; input_node = gegl_node_get_producer (node, "input", NULL); input_bounds = gimp_warp_tool_get_node_bounds (input_node); stroke_bounds = gimp_warp_tool_get_stroke_bounds (node); gegl_rectangle_bounding_box (&input_bounds, &input_bounds, &stroke_bounds); bounds = gegl_rectangle_dup (&input_bounds); g_object_set_data_full (G_OBJECT (node), "gimp-warp-tool-bounds", bounds, g_free); } return *bounds; } static void gimp_warp_tool_clear_node_bounds (GeglNode *node) { if (node && ! strcmp (gegl_node_get_operation (node), "gegl:warp")) g_object_set_data (G_OBJECT (node), "gimp-warp-tool-bounds", NULL); } static GeglRectangle gimp_warp_tool_get_invalidated_by_change (GimpWarpTool *wt, const GeglRectangle *area) { GeglRectangle result = *area; if (! wt->filter) return result; if (wt->render_node) { GeglOperation *operation = gegl_node_get_gegl_operation (wt->render_node); result = gegl_operation_get_invalidated_by_change (operation, "aux", area); } return result; } static void gimp_warp_tool_update_bounds (GimpWarpTool *wt) { GeglRectangle bounds = {0, 0, 0, 0}; if (! wt->filter) return; if (wt->render_node) { GeglNode *node = gegl_node_get_producer (wt->render_node, "aux", NULL); bounds = gimp_warp_tool_get_node_bounds (node); bounds = gimp_warp_tool_get_invalidated_by_change (wt, &bounds); } gimp_drawable_filter_set_crop (wt->filter, &bounds, FALSE); } static void gimp_warp_tool_update_area (GimpWarpTool *wt, const GeglRectangle *area, gboolean synchronous) { GeglRectangle rect; if (! wt->filter) return; rect = gimp_warp_tool_get_invalidated_by_change (wt, area); if (synchronous) { GimpTool *tool = GIMP_TOOL (wt); GimpImage *image = gimp_display_get_image (tool->display); g_signal_handlers_block_by_func (wt->filter, gimp_warp_tool_filter_flush, wt); gimp_drawable_filter_apply (wt->filter, &rect); gimp_projection_flush_now (gimp_image_get_projection (image), TRUE); gimp_display_flush_now (tool->display); g_signal_handlers_unblock_by_func (wt->filter, gimp_warp_tool_filter_flush, wt); } else { gimp_drawable_filter_apply (wt->filter, &rect); } } static void gimp_warp_tool_update_stroke (GimpWarpTool *wt, GeglNode *node) { GeglRectangle bounds = {0, 0, 0, 0}; if (! wt->filter) return; if (node) { /* update just this stroke */ bounds = gimp_warp_tool_get_stroke_bounds (node); } else if (wt->render_node) { node = gegl_node_get_producer (wt->render_node, "aux", NULL); bounds = gimp_warp_tool_get_node_bounds (node); } if (! gegl_rectangle_is_empty (&bounds)) { #ifdef WARP_DEBUG g_printerr ("update stroke: (%d,%d), %dx%d\n", bounds.x, bounds.y, bounds.width, bounds.height); #endif gimp_warp_tool_update_area (wt, &bounds, FALSE); } } static void gimp_warp_tool_stroke_append (GimpWarpTool *wt, gchar type, gdouble x, gdouble y) { GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GeglRectangle area; if (! wt->filter) return; gegl_path_append (wt->current_stroke, type, x, y); area.x = floor (x - options->effect_size * 0.5); area.y = floor (y - options->effect_size * 0.5); area.width = ceil (x + options->effect_size * 0.5) - area.x; area.height = ceil (y + options->effect_size * 0.5) - area.y; #ifdef WARP_DEBUG g_printerr ("update rect: (%d,%d), %dx%d\n", area.x, area.y, area.width, area.height); #endif if (wt->render_node) { GeglNode *node = gegl_node_get_producer (wt->render_node, "aux", NULL); gimp_warp_tool_clear_node_bounds (node); gimp_warp_tool_update_bounds (wt); } gimp_warp_tool_update_area (wt, &area, options->real_time_preview); } static void gimp_warp_tool_filter_flush (GimpDrawableFilter *filter, GimpTool *tool) { GimpImage *image = gimp_display_get_image (tool->display); gimp_projection_flush (gimp_image_get_projection (image)); } static void gimp_warp_tool_add_op (GimpWarpTool *wt, GeglNode *op) { GeglNode *last_op; g_return_if_fail (GEGL_IS_NODE (wt->render_node)); gegl_node_add_child (wt->graph, op); last_op = gegl_node_get_producer (wt->render_node, "aux", NULL); gegl_node_disconnect (wt->render_node, "aux"); gegl_node_connect_to (last_op, "output", op , "input"); gegl_node_connect_to (op, "output", wt->render_node, "aux"); } static void gimp_warp_tool_remove_op (GimpWarpTool *wt, GeglNode *op) { GeglNode *previous; g_return_if_fail (GEGL_IS_NODE (wt->render_node)); previous = gegl_node_get_producer (op, "input", NULL); gegl_node_disconnect (op, "input"); gegl_node_connect_to (previous, "output", wt->render_node, "aux"); gegl_node_remove_child (wt->graph, op); } static void gimp_warp_tool_free_op (GeglNode *op) { GeglNode *parent; parent = gegl_node_get_parent (op); gimp_assert (parent != NULL); gegl_node_remove_child (parent, op); } static void gimp_warp_tool_animate (GimpWarpTool *wt) { GimpTool *tool = GIMP_TOOL (wt); GimpWarpOptions *options = GIMP_WARP_TOOL_GET_OPTIONS (wt); GimpImage *orig_image; GimpImage *image; GimpLayer *layer; GimpLayer *first_layer; GeglNode *scale_node; GimpProgress *progress; GtkWidget *widget; gint i; if (! gimp_warp_tool_can_undo (tool, tool->display)) { gimp_tool_message_literal (tool, tool->display, _("Please add some warp strokes first.")); return; } /* get rid of the image map so we can use wt->graph */ if (wt->filter) { gimp_drawable_filter_abort (wt->filter); g_clear_object (&wt->filter); } gimp_warp_tool_set_sampler (wt, /* commit = */ TRUE); gimp_progress_start (GIMP_PROGRESS (tool), FALSE, _("Rendering Frame %d"), 1); orig_image = gimp_item_get_image (GIMP_ITEM (tool->drawable)); image = gimp_create_image (orig_image->gimp, gimp_item_get_width (GIMP_ITEM (tool->drawable)), gimp_item_get_height (GIMP_ITEM (tool->drawable)), gimp_drawable_get_base_type (tool->drawable), gimp_drawable_get_precision (tool->drawable), TRUE); /* the first frame is always the unwarped image */ layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (tool->drawable), image, GIMP_TYPE_LAYER)); gimp_object_take_name (GIMP_OBJECT (layer), g_strdup_printf (_("Frame %d"), 1)); gimp_item_set_offset (GIMP_ITEM (layer), 0, 0); gimp_item_set_visible (GIMP_ITEM (layer), TRUE, FALSE); gimp_layer_set_mode (layer, gimp_image_get_default_new_layer_mode (image), FALSE); gimp_layer_set_opacity (layer, GIMP_OPACITY_OPAQUE, FALSE); gimp_image_add_layer (image, layer, NULL, 0, FALSE); first_layer = layer; scale_node = gegl_node_new_child (NULL, "operation", "gimp:scalar-multiply", "n-components", 2, NULL); gimp_warp_tool_add_op (wt, scale_node); progress = gimp_sub_progress_new (GIMP_PROGRESS (tool)); for (i = 1; i < options->n_animation_frames; i++) { gimp_progress_set_text (GIMP_PROGRESS (tool), _("Rendering Frame %d"), i + 1); gimp_sub_progress_set_step (GIMP_SUB_PROGRESS (progress), i, options->n_animation_frames); layer = GIMP_LAYER (gimp_item_duplicate (GIMP_ITEM (first_layer), GIMP_TYPE_LAYER)); gimp_object_take_name (GIMP_OBJECT (layer), g_strdup_printf (_("Frame %d"), i + 1)); gegl_node_set (scale_node, "factor", (gdouble) i / (gdouble) (options->n_animation_frames - 1), NULL); gimp_gegl_apply_operation (gimp_drawable_get_buffer (GIMP_DRAWABLE (first_layer)), progress, _("Frame"), wt->graph, gimp_drawable_get_buffer (GIMP_DRAWABLE (layer)), NULL, FALSE); gimp_image_add_layer (image, layer, NULL, 0, FALSE); } g_object_unref (progress); gimp_warp_tool_remove_op (wt, scale_node); gimp_progress_end (GIMP_PROGRESS (tool)); /* recreate the image map */ gimp_warp_tool_create_filter (wt, tool->drawable); gimp_warp_tool_update_stroke (wt, NULL); widget = GTK_WIDGET (gimp_display_get_shell (tool->display)); gimp_create_display (orig_image->gimp, image, GIMP_UNIT_PIXEL, 1.0, G_OBJECT (gtk_widget_get_screen (widget)), gimp_widget_get_monitor (widget)); g_object_unref (image); }