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-rw-r--r--app/text/gimptextlayer.c861
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diff --git a/app/text/gimptextlayer.c b/app/text/gimptextlayer.c
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+++ b/app/text/gimptextlayer.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * GimpTextLayer
+ * Copyright (C) 2002-2004 Sven Neumann <sven@gimp.org>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <cairo.h>
+#include <gegl.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <pango/pangocairo.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpconfig/gimpconfig.h"
+
+#include "text-types.h"
+
+#include "gegl/gimp-babl.h"
+#include "gegl/gimp-gegl-loops.h"
+#include "gegl/gimp-gegl-utils.h"
+
+#include "core/gimp.h"
+#include "core/gimp-utils.h"
+#include "core/gimpcontext.h"
+#include "core/gimpcontainer.h"
+#include "core/gimpdatafactory.h"
+#include "core/gimpimage.h"
+#include "core/gimpimage-color-profile.h"
+#include "core/gimpimage-undo.h"
+#include "core/gimpimage-undo-push.h"
+#include "core/gimpitemtree.h"
+#include "core/gimpparasitelist.h"
+
+#include "gimptext.h"
+#include "gimptextlayer.h"
+#include "gimptextlayer-transform.h"
+#include "gimptextlayout.h"
+#include "gimptextlayout-render.h"
+
+#include "gimp-intl.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_TEXT,
+ PROP_AUTO_RENAME,
+ PROP_MODIFIED
+};
+
+struct _GimpTextLayerPrivate
+{
+ GimpTextDirection base_dir;
+};
+
+static void gimp_text_layer_finalize (GObject *object);
+static void gimp_text_layer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gimp_text_layer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+
+static gint64 gimp_text_layer_get_memsize (GimpObject *object,
+ gint64 *gui_size);
+
+static GimpItem * gimp_text_layer_duplicate (GimpItem *item,
+ GType new_type);
+static gboolean gimp_text_layer_rename (GimpItem *item,
+ const gchar *new_name,
+ const gchar *undo_desc,
+ GError **error);
+
+static void gimp_text_layer_set_buffer (GimpDrawable *drawable,
+ gboolean push_undo,
+ const gchar *undo_desc,
+ GeglBuffer *buffer,
+ const GeglRectangle *bounds);
+static void gimp_text_layer_push_undo (GimpDrawable *drawable,
+ const gchar *undo_desc,
+ GeglBuffer *buffer,
+ gint x,
+ gint y,
+ gint width,
+ gint height);
+
+static void gimp_text_layer_convert_type (GimpLayer *layer,
+ GimpImage *dest_image,
+ const Babl *new_format,
+ GimpColorProfile *dest_profile,
+ GeglDitherMethod layer_dither_type,
+ GeglDitherMethod mask_dither_type,
+ gboolean push_undo,
+ GimpProgress *progress);
+
+static void gimp_text_layer_text_changed (GimpTextLayer *layer);
+static gboolean gimp_text_layer_render (GimpTextLayer *layer);
+static void gimp_text_layer_render_layout (GimpTextLayer *layer,
+ GimpTextLayout *layout);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpTextLayer, gimp_text_layer, GIMP_TYPE_LAYER)
+
+#define parent_class gimp_text_layer_parent_class
+
+
+static void
+gimp_text_layer_class_init (GimpTextLayerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
+ GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
+ GimpItemClass *item_class = GIMP_ITEM_CLASS (klass);
+ GimpDrawableClass *drawable_class = GIMP_DRAWABLE_CLASS (klass);
+ GimpLayerClass *layer_class = GIMP_LAYER_CLASS (klass);
+
+ object_class->finalize = gimp_text_layer_finalize;
+ object_class->get_property = gimp_text_layer_get_property;
+ object_class->set_property = gimp_text_layer_set_property;
+
+ gimp_object_class->get_memsize = gimp_text_layer_get_memsize;
+
+ viewable_class->default_icon_name = "gimp-text-layer";
+
+ item_class->duplicate = gimp_text_layer_duplicate;
+ item_class->rename = gimp_text_layer_rename;
+
+#if 0
+ item_class->scale = gimp_text_layer_scale;
+ item_class->flip = gimp_text_layer_flip;
+ item_class->rotate = gimp_text_layer_rotate;
+ item_class->transform = gimp_text_layer_transform;
+#endif
+
+ item_class->default_name = _("Text Layer");
+ item_class->rename_desc = _("Rename Text Layer");
+ item_class->translate_desc = _("Move Text Layer");
+ item_class->scale_desc = _("Scale Text Layer");
+ item_class->resize_desc = _("Resize Text Layer");
+ item_class->flip_desc = _("Flip Text Layer");
+ item_class->rotate_desc = _("Rotate Text Layer");
+ item_class->transform_desc = _("Transform Text Layer");
+
+ drawable_class->set_buffer = gimp_text_layer_set_buffer;
+ drawable_class->push_undo = gimp_text_layer_push_undo;
+
+ layer_class->convert_type = gimp_text_layer_convert_type;
+
+ GIMP_CONFIG_PROP_OBJECT (object_class, PROP_TEXT,
+ "text",
+ NULL, NULL,
+ GIMP_TYPE_TEXT,
+ GIMP_PARAM_STATIC_STRINGS);
+
+ GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_AUTO_RENAME,
+ "auto-rename",
+ NULL, NULL,
+ TRUE,
+ GIMP_PARAM_STATIC_STRINGS);
+
+ GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_MODIFIED,
+ "modified",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_STATIC_STRINGS);
+}
+
+static void
+gimp_text_layer_init (GimpTextLayer *layer)
+{
+ layer->text = NULL;
+ layer->text_parasite = NULL;
+ layer->private = gimp_text_layer_get_instance_private (layer);
+}
+
+static void
+gimp_text_layer_finalize (GObject *object)
+{
+ GimpTextLayer *layer = GIMP_TEXT_LAYER (object);
+
+ g_clear_object (&layer->text);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_text_layer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpTextLayer *text_layer = GIMP_TEXT_LAYER (object);
+
+ switch (property_id)
+ {
+ case PROP_TEXT:
+ g_value_set_object (value, text_layer->text);
+ break;
+ case PROP_AUTO_RENAME:
+ g_value_set_boolean (value, text_layer->auto_rename);
+ break;
+ case PROP_MODIFIED:
+ g_value_set_boolean (value, text_layer->modified);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_text_layer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpTextLayer *text_layer = GIMP_TEXT_LAYER (object);
+
+ switch (property_id)
+ {
+ case PROP_TEXT:
+ gimp_text_layer_set_text (text_layer, g_value_get_object (value));
+ break;
+ case PROP_AUTO_RENAME:
+ text_layer->auto_rename = g_value_get_boolean (value);
+ break;
+ case PROP_MODIFIED:
+ text_layer->modified = g_value_get_boolean (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gint64
+gimp_text_layer_get_memsize (GimpObject *object,
+ gint64 *gui_size)
+{
+ GimpTextLayer *text_layer = GIMP_TEXT_LAYER (object);
+ gint64 memsize = 0;
+
+ memsize += gimp_object_get_memsize (GIMP_OBJECT (text_layer->text),
+ gui_size);
+
+ return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+ gui_size);
+}
+
+static GimpItem *
+gimp_text_layer_duplicate (GimpItem *item,
+ GType new_type)
+{
+ GimpItem *new_item;
+
+ g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_DRAWABLE), NULL);
+
+ new_item = GIMP_ITEM_CLASS (parent_class)->duplicate (item, new_type);
+
+ if (GIMP_IS_TEXT_LAYER (new_item))
+ {
+ GimpTextLayer *layer = GIMP_TEXT_LAYER (item);
+ GimpTextLayer *new_layer = GIMP_TEXT_LAYER (new_item);
+
+ gimp_config_sync (G_OBJECT (layer), G_OBJECT (new_layer), 0);
+
+ if (layer->text)
+ {
+ GimpText *text = gimp_config_duplicate (GIMP_CONFIG (layer->text));
+
+ gimp_text_layer_set_text (new_layer, text);
+
+ g_object_unref (text);
+ }
+
+ /* this is just the parasite name, not a pointer to the parasite */
+ if (layer->text_parasite)
+ new_layer->text_parasite = layer->text_parasite;
+
+ new_layer->private->base_dir = layer->private->base_dir;
+ }
+
+ return new_item;
+}
+
+static gboolean
+gimp_text_layer_rename (GimpItem *item,
+ const gchar *new_name,
+ const gchar *undo_desc,
+ GError **error)
+{
+ if (GIMP_ITEM_CLASS (parent_class)->rename (item, new_name, undo_desc, error))
+ {
+ g_object_set (item, "auto-rename", FALSE, NULL);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gimp_text_layer_set_buffer (GimpDrawable *drawable,
+ gboolean push_undo,
+ const gchar *undo_desc,
+ GeglBuffer *buffer,
+ const GeglRectangle *bounds)
+{
+ GimpTextLayer *layer = GIMP_TEXT_LAYER (drawable);
+ GimpImage *image = gimp_item_get_image (GIMP_ITEM (layer));
+
+ if (push_undo && ! layer->modified)
+ gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_DRAWABLE_MOD,
+ undo_desc);
+
+ GIMP_DRAWABLE_CLASS (parent_class)->set_buffer (drawable,
+ push_undo, undo_desc,
+ buffer, bounds);
+
+ if (push_undo && ! layer->modified)
+ {
+ gimp_image_undo_push_text_layer_modified (image, NULL, layer);
+
+ g_object_set (drawable, "modified", TRUE, NULL);
+
+ gimp_image_undo_group_end (image);
+ }
+}
+
+static void
+gimp_text_layer_push_undo (GimpDrawable *drawable,
+ const gchar *undo_desc,
+ GeglBuffer *buffer,
+ gint x,
+ gint y,
+ gint width,
+ gint height)
+{
+ GimpTextLayer *layer = GIMP_TEXT_LAYER (drawable);
+ GimpImage *image = gimp_item_get_image (GIMP_ITEM (layer));
+
+ if (! layer->modified)
+ gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_DRAWABLE, undo_desc);
+
+ GIMP_DRAWABLE_CLASS (parent_class)->push_undo (drawable, undo_desc,
+ buffer,
+ x, y, width, height);
+
+ if (! layer->modified)
+ {
+ gimp_image_undo_push_text_layer_modified (image, NULL, layer);
+
+ g_object_set (drawable, "modified", TRUE, NULL);
+
+ gimp_image_undo_group_end (image);
+ }
+}
+
+static void
+gimp_text_layer_convert_type (GimpLayer *layer,
+ GimpImage *dest_image,
+ const Babl *new_format,
+ GimpColorProfile *dest_profile,
+ GeglDitherMethod layer_dither_type,
+ GeglDitherMethod mask_dither_type,
+ gboolean push_undo,
+ GimpProgress *progress)
+{
+ GimpTextLayer *text_layer = GIMP_TEXT_LAYER (layer);
+ GimpImage *image = gimp_item_get_image (GIMP_ITEM (text_layer));
+
+ if (! text_layer->text ||
+ text_layer->modified ||
+ layer_dither_type != GEGL_DITHER_NONE)
+ {
+ GIMP_LAYER_CLASS (parent_class)->convert_type (layer, dest_image,
+ new_format,
+ dest_profile,
+ layer_dither_type,
+ mask_dither_type,
+ push_undo,
+ progress);
+ }
+ else
+ {
+ if (push_undo)
+ gimp_image_undo_push_text_layer_convert (image, NULL, text_layer);
+
+ text_layer->convert_format = new_format;
+
+ gimp_text_layer_render (text_layer);
+
+ text_layer->convert_format = NULL;
+ }
+}
+
+
+/* public functions */
+
+/**
+ * gimp_text_layer_new:
+ * @image: the #GimpImage the layer should belong to
+ * @text: a #GimpText object
+ *
+ * Creates a new text layer.
+ *
+ * Return value: a new #GimpTextLayer or %NULL in case of a problem
+ **/
+GimpLayer *
+gimp_text_layer_new (GimpImage *image,
+ GimpText *text)
+{
+ GimpTextLayer *layer;
+
+ g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
+ g_return_val_if_fail (GIMP_IS_TEXT (text), NULL);
+
+ if (! text->text && ! text->markup)
+ return NULL;
+
+ layer =
+ GIMP_TEXT_LAYER (gimp_drawable_new (GIMP_TYPE_TEXT_LAYER,
+ image, NULL,
+ 0, 0, 1, 1,
+ gimp_image_get_layer_format (image,
+ TRUE)));
+
+ gimp_layer_set_mode (GIMP_LAYER (layer),
+ gimp_image_get_default_new_layer_mode (image),
+ FALSE);
+
+ gimp_text_layer_set_text (layer, text);
+
+ if (! gimp_text_layer_render (layer))
+ {
+ g_object_unref (layer);
+ return NULL;
+ }
+
+ return GIMP_LAYER (layer);
+}
+
+void
+gimp_text_layer_set_text (GimpTextLayer *layer,
+ GimpText *text)
+{
+ g_return_if_fail (GIMP_IS_TEXT_LAYER (layer));
+ g_return_if_fail (text == NULL || GIMP_IS_TEXT (text));
+
+ if (layer->text == text)
+ return;
+
+ if (layer->text)
+ {
+ g_signal_handlers_disconnect_by_func (layer->text,
+ G_CALLBACK (gimp_text_layer_text_changed),
+ layer);
+
+ g_clear_object (&layer->text);
+ }
+
+ if (text)
+ {
+ layer->text = g_object_ref (text);
+ layer->private->base_dir = layer->text->base_dir;
+
+ g_signal_connect_object (text, "changed",
+ G_CALLBACK (gimp_text_layer_text_changed),
+ layer, G_CONNECT_SWAPPED);
+ }
+
+ g_object_notify (G_OBJECT (layer), "text");
+ gimp_viewable_invalidate_preview (GIMP_VIEWABLE (layer));
+}
+
+GimpText *
+gimp_text_layer_get_text (GimpTextLayer *layer)
+{
+ g_return_val_if_fail (GIMP_IS_TEXT_LAYER (layer), NULL);
+
+ return layer->text;
+}
+
+void
+gimp_text_layer_set (GimpTextLayer *layer,
+ const gchar *undo_desc,
+ const gchar *first_property_name,
+ ...)
+{
+ GimpImage *image;
+ GimpText *text;
+ va_list var_args;
+
+ g_return_if_fail (gimp_item_is_text_layer (GIMP_ITEM (layer)));
+ g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (layer)));
+
+ text = gimp_text_layer_get_text (layer);
+ if (! text)
+ return;
+
+ image = gimp_item_get_image (GIMP_ITEM (layer));
+
+ gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TEXT, undo_desc);
+
+ g_object_freeze_notify (G_OBJECT (layer));
+
+ if (layer->modified)
+ {
+ gimp_image_undo_push_text_layer_modified (image, NULL, layer);
+
+ /* pass copy_tiles = TRUE so we not only ref the tiles; after
+ * being a text layer again, undo doesn't care about the
+ * layer's pixels any longer because they are generated, so
+ * changing the text would happily overwrite the layer's
+ * pixels, changing the pixels on the undo stack too without
+ * any chance to ever undo again.
+ */
+ gimp_image_undo_push_drawable_mod (image, NULL,
+ GIMP_DRAWABLE (layer), TRUE);
+ }
+
+ gimp_image_undo_push_text_layer (image, undo_desc, layer, NULL);
+
+ va_start (var_args, first_property_name);
+
+ g_object_set_valist (G_OBJECT (text), first_property_name, var_args);
+
+ va_end (var_args);
+
+ g_object_set (layer, "modified", FALSE, NULL);
+
+ g_object_thaw_notify (G_OBJECT (layer));
+
+ gimp_image_undo_group_end (image);
+}
+
+/**
+ * gimp_text_layer_discard:
+ * @layer: a #GimpTextLayer
+ *
+ * Discards the text information. This makes @layer behave like a
+ * normal layer.
+ */
+void
+gimp_text_layer_discard (GimpTextLayer *layer)
+{
+ g_return_if_fail (GIMP_IS_TEXT_LAYER (layer));
+ g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (layer)));
+
+ if (! layer->text)
+ return;
+
+ gimp_image_undo_push_text_layer (gimp_item_get_image (GIMP_ITEM (layer)),
+ _("Discard Text Information"),
+ layer, NULL);
+
+ gimp_text_layer_set_text (layer, NULL);
+}
+
+gboolean
+gimp_item_is_text_layer (GimpItem *item)
+{
+ return (GIMP_IS_TEXT_LAYER (item) &&
+ GIMP_TEXT_LAYER (item)->text &&
+ GIMP_TEXT_LAYER (item)->modified == FALSE);
+}
+
+
+/* private functions */
+
+static const Babl *
+gimp_text_layer_get_format (GimpTextLayer *layer)
+{
+ if (layer->convert_format)
+ return layer->convert_format;
+
+ return gimp_drawable_get_format (GIMP_DRAWABLE (layer));
+}
+
+static void
+gimp_text_layer_text_changed (GimpTextLayer *layer)
+{
+ /* If the text layer was created from a parasite, it's time to
+ * remove that parasite now.
+ */
+ if (layer->text_parasite)
+ {
+ /* Don't push an undo because the parasite only exists temporarily
+ * while the text layer is loaded from XCF.
+ */
+ gimp_item_parasite_detach (GIMP_ITEM (layer), layer->text_parasite,
+ FALSE);
+ layer->text_parasite = NULL;
+ }
+
+ if (layer->text->box_mode == GIMP_TEXT_BOX_DYNAMIC)
+ {
+ gint old_width;
+ gint new_width;
+ GimpItem *item = GIMP_ITEM (layer);
+ GimpTextDirection old_base_dir = layer->private->base_dir;
+ GimpTextDirection new_base_dir = layer->text->base_dir;
+
+ old_width = gimp_item_get_width (item);
+ gimp_text_layer_render (layer);
+ new_width = gimp_item_get_width (item);
+
+ if (old_base_dir != new_base_dir)
+ {
+ switch (old_base_dir)
+ {
+ case GIMP_TEXT_DIRECTION_LTR:
+ case GIMP_TEXT_DIRECTION_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_LTR:
+ case GIMP_TEXT_DIRECTION_TTB_LTR_UPRIGHT:
+ switch (new_base_dir)
+ {
+ case GIMP_TEXT_DIRECTION_TTB_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_RTL_UPRIGHT:
+ gimp_item_translate (item, -new_width, 0, FALSE);
+ break;
+
+ case GIMP_TEXT_DIRECTION_LTR:
+ case GIMP_TEXT_DIRECTION_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_LTR:
+ case GIMP_TEXT_DIRECTION_TTB_LTR_UPRIGHT:
+ break;
+ }
+ break;
+
+ case GIMP_TEXT_DIRECTION_TTB_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_RTL_UPRIGHT:
+ switch (new_base_dir)
+ {
+ case GIMP_TEXT_DIRECTION_LTR:
+ case GIMP_TEXT_DIRECTION_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_LTR:
+ case GIMP_TEXT_DIRECTION_TTB_LTR_UPRIGHT:
+ gimp_item_translate (item, old_width, 0, FALSE);
+ break;
+
+ case GIMP_TEXT_DIRECTION_TTB_RTL:
+ case GIMP_TEXT_DIRECTION_TTB_RTL_UPRIGHT:
+ break;
+ }
+ break;
+ }
+ }
+ else if ((new_base_dir == GIMP_TEXT_DIRECTION_TTB_RTL ||
+ new_base_dir == GIMP_TEXT_DIRECTION_TTB_RTL_UPRIGHT))
+ {
+ if (old_width != new_width)
+ gimp_item_translate (item, old_width - new_width, 0, FALSE);
+ }
+ }
+ else
+ gimp_text_layer_render (layer);
+
+ layer->private->base_dir = layer->text->base_dir;
+}
+
+static gboolean
+gimp_text_layer_render (GimpTextLayer *layer)
+{
+ GimpDrawable *drawable;
+ GimpItem *item;
+ GimpImage *image;
+ GimpContainer *container;
+ GimpTextLayout *layout;
+ gdouble xres;
+ gdouble yres;
+ gint width;
+ gint height;
+ GError *error = NULL;
+
+ if (! layer->text)
+ return FALSE;
+
+ drawable = GIMP_DRAWABLE (layer);
+ item = GIMP_ITEM (layer);
+ image = gimp_item_get_image (item);
+ container = gimp_data_factory_get_container (image->gimp->font_factory);
+
+ gimp_data_factory_data_wait (image->gimp->font_factory);
+
+ if (gimp_container_is_empty (container))
+ {
+ gimp_message_literal (image->gimp, NULL, GIMP_MESSAGE_ERROR,
+ _("Due to lack of any fonts, "
+ "text functionality is not available."));
+ return FALSE;
+ }
+
+ gimp_image_get_resolution (image, &xres, &yres);
+
+ layout = gimp_text_layout_new (layer->text, xres, yres, &error);
+ if (error)
+ {
+ gimp_message_literal (image->gimp, NULL, GIMP_MESSAGE_ERROR, error->message);
+ g_error_free (error);
+ }
+
+ g_object_freeze_notify (G_OBJECT (drawable));
+
+ if (gimp_text_layout_get_size (layout, &width, &height) &&
+ (width != gimp_item_get_width (item) ||
+ height != gimp_item_get_height (item) ||
+ gimp_text_layer_get_format (layer) !=
+ gimp_drawable_get_format (drawable)))
+ {
+ GeglBuffer *new_buffer;
+
+ new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
+ gimp_text_layer_get_format (layer));
+ gimp_drawable_set_buffer (drawable, FALSE, NULL, new_buffer);
+ g_object_unref (new_buffer);
+
+ if (gimp_layer_get_mask (GIMP_LAYER (layer)))
+ {
+ GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (layer));
+
+ static GimpContext *unused_eek = NULL;
+
+ if (! unused_eek)
+ unused_eek = gimp_context_new (image->gimp, "eek", NULL);
+
+ gimp_item_resize (GIMP_ITEM (mask),
+ unused_eek, GIMP_FILL_TRANSPARENT,
+ width, height, 0, 0);
+ }
+ }
+
+ if (layer->auto_rename)
+ {
+ GimpItem *item = GIMP_ITEM (layer);
+ gchar *name = NULL;
+
+ if (layer->text->text)
+ {
+ name = gimp_utf8_strtrim (layer->text->text, 30);
+ }
+ else if (layer->text->markup)
+ {
+ gchar *tmp = gimp_markup_extract_text (layer->text->markup);
+ name = gimp_utf8_strtrim (tmp, 30);
+ g_free (tmp);
+ }
+
+ if (! name || ! name[0])
+ {
+ g_free (name);
+ name = g_strdup (_("Empty Text Layer"));
+ }
+
+ if (gimp_item_is_attached (item))
+ {
+ gimp_item_tree_rename_item (gimp_item_get_tree (item), item,
+ name, FALSE, NULL);
+ g_free (name);
+ }
+ else
+ {
+ gimp_object_take_name (GIMP_OBJECT (layer), name);
+ }
+ }
+
+ if (width > 0 && height > 0)
+ gimp_text_layer_render_layout (layer, layout);
+
+ g_object_unref (layout);
+
+ g_object_thaw_notify (G_OBJECT (drawable));
+
+ return (width > 0 && height > 0);
+}
+
+static void
+gimp_text_layer_render_layout (GimpTextLayer *layer,
+ GimpTextLayout *layout)
+{
+ GimpDrawable *drawable = GIMP_DRAWABLE (layer);
+ GimpItem *item = GIMP_ITEM (layer);
+ GimpImage *image = gimp_item_get_image (item);
+ GeglBuffer *buffer;
+ GimpColorTransform *transform;
+ cairo_t *cr;
+ cairo_surface_t *surface;
+ gint width;
+ gint height;
+ cairo_status_t status;
+
+ g_return_if_fail (gimp_drawable_has_alpha (drawable));
+
+ width = gimp_item_get_width (item);
+ height = gimp_item_get_height (item);
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+ status = cairo_surface_status (surface);
+
+ if (status != CAIRO_STATUS_SUCCESS)
+ {
+ GimpImage *image = gimp_item_get_image (item);
+
+ gimp_message_literal (image->gimp, NULL, GIMP_MESSAGE_ERROR,
+ _("Your text cannot be rendered. It is likely too big. "
+ "Please make it shorter or use a smaller font."));
+ cairo_surface_destroy (surface);
+ return;
+ }
+
+ cr = cairo_create (surface);
+ gimp_text_layout_render (layout, cr, layer->text->base_dir, FALSE);
+ cairo_destroy (cr);
+
+ cairo_surface_flush (surface);
+
+ buffer = gimp_cairo_surface_create_buffer (surface);
+
+ transform = gimp_image_get_color_transform_from_srgb_u8 (image);
+
+ if (transform)
+ {
+ gimp_color_transform_process_buffer (transform,
+ buffer,
+ NULL,
+ gimp_drawable_get_buffer (drawable),
+ NULL);
+ }
+ else
+ {
+ gimp_gegl_buffer_copy (buffer, NULL, GEGL_ABYSS_NONE,
+ gimp_drawable_get_buffer (drawable), NULL);
+ }
+
+ g_object_unref (buffer);
+ cairo_surface_destroy (surface);
+
+ gimp_drawable_update (drawable, 0, 0, width, height);
+}