static void gimp_warp_tool_start (GimpWarpTool *wt, GimpDisplay *display) { GimpTool *tool = GIMP_TOOL (wt); GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); const Babl *format; GeglRectangle bbox; 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_image_map (wt, drawable); if (! gimp_draw_tool_is_active (GIMP_DRAW_TOOL (wt))) gimp_draw_tool_start (GIMP_DRAW_TOOL (wt), display); }
static void 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; 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_image_map (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); } }
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); }
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_viewable_get_children (GIMP_VIEWABLE (drawable))) { gimp_tool_message_literal (tool, display, _("Cannot warp layer groups.")); return FALSE; } if (gimp_item_is_content_locked (GIMP_ITEM (drawable))) { gimp_tool_message_literal (tool, display, _("The active layer's pixels are locked.")); return FALSE; } if (! gimp_item_is_visible (GIMP_ITEM (drawable))) { gimp_tool_message_literal (tool, display, _("The active layer is not visible.")); 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_image_map (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; }