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_pop_status (tool, tool->display); gimp_warp_tool_halt (wt); } if (! tool->display) { if (! gimp_warp_tool_start (wt, display)) return; } wt->current_stroke = gegl_path_new (); new_op = gegl_node_new_child (NULL, "operation", "gegl:warp", "behavior", options->behavior, "strength", options->effect_strength, "size", options->effect_size, "hardness", options->effect_hardness, "stroke", wt->current_stroke, NULL); gimp_warp_tool_add_op (wt, new_op); g_object_unref (new_op); g_signal_connect (wt->current_stroke, "changed", G_CALLBACK (gimp_warp_tool_stroke_changed), wt); gimp_item_get_offset (GIMP_ITEM (tool->drawable), &off_x, &off_y); gegl_path_append (wt->current_stroke, 'M', coords->x - off_x, coords->y - off_y); wt->stroke_timer = g_timeout_add (STROKE_PERIOD, (GSourceFunc) gimp_warp_tool_stroke_timer, wt); gimp_tool_control_activate (tool->control); }
gboolean gimp_warp_tool_redo (GimpTool *tool, GimpDisplay *display) { GimpWarpTool *wt = GIMP_WARP_TOOL (tool); GeglNode *to_add; if (! wt->render_node || ! wt->redo_stack) return FALSE; to_add = wt->redo_stack->data; gimp_warp_tool_add_op (wt, to_add); g_object_unref (to_add); wt->redo_stack = g_list_remove_link (wt->redo_stack, wt->redo_stack); gimp_warp_tool_update_stroke (wt, to_add); return TRUE; }
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_get_undo_desc (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->image_map) { gimp_image_map_abort (wt->image_map); g_object_unref (wt->image_map); wt->image_map = NULL; } 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_NORMAL_MODE, 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); 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_image_map (wt, tool->drawable); gimp_image_map_apply (wt->image_map, 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); }