/*
 * ghbcellrenderertext.c
 * Copyright (C) John Stebbins 2008-2018 <stebbins@stebbins>
 *
 * ghbcellrenderertext.c is free software.
 *
 * You may redistribute it and/or modify it under the terms of the
 * GNU General Public License, as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * ghbcellrenderertext.c 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 main.c.  If not, write to:
 *  The Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor
 *  Boston, MA  02110-1301, USA.
 */

#include <config.h>
#include <stdlib.h>
#include "ghbcompat.h"
#include <glib/gi18n-lib.h>

#include "marshalers.h"
#include "ghbcellrenderertext.h"

#ifdef ENABLE_NLS
#define P_(String) dgettext(GETTEXT_PACKAGE "-properties",String)
#else
#define P_(String) (String)
#endif

#define I_(string) g_intern_static_string (string)

#define GTK_PARAM_READABLE G_PARAM_READABLE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
#define GTK_PARAM_WRITABLE G_PARAM_WRITABLE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
#define GTK_PARAM_READWRITE G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB


#define MyGdkRectangle  const GdkRectangle

static void ghb_cell_renderer_text_finalize   (GObject                  *object);

static void ghb_cell_renderer_text_get_property  (GObject                  *object,
                          guint                     param_id,
                          GValue                   *value,
                          GParamSpec               *pspec);
static void ghb_cell_renderer_text_set_property  (GObject                  *object,
                          guint                     param_id,
                          const GValue             *value,
                          GParamSpec               *pspec);
static void ghb_cell_renderer_text_get_size   (GtkCellRenderer          *cell,
                           GtkWidget                *widget,
                           MyGdkRectangle           *cell_area,
                           gint                     *x_offset,
                           gint                     *y_offset,
                           gint                     *width,
                           gint                     *height);
#if GTK_CHECK_VERSION(3, 90, 0)
static void ghb_cell_renderer_text_snapshot   (GtkCellRenderer          *cell,
                           GtkSnapshot              *snapshot,
                           GtkWidget                *widget,
                           MyGdkRectangle           *background_area,
                           MyGdkRectangle           *cell_area,
                           GtkCellRendererState      flags);
#else
static void ghb_cell_renderer_text_render     (GtkCellRenderer          *cell,
                           cairo_t                  *cr,
                           GtkWidget                *widget,
                           MyGdkRectangle           *background_area,
                           MyGdkRectangle           *cell_area,
                           GtkCellRendererState      flags);
#endif
static GtkCellEditable *ghb_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
                                  GdkEvent             *event,
                                  GtkWidget            *widget,
                                  const gchar          *path,
                                  MyGdkRectangle       *background_area,
                                  MyGdkRectangle       *cell_area,
                                  GtkCellRendererState  flags);

enum {
  EDITED,
  KEYPRESS,
  LAST_SIGNAL
};

enum {
  PROP_0,

  PROP_TEXT,
  PROP_MARKUP,
  PROP_ATTRIBUTES,
  PROP_SINGLE_PARAGRAPH_MODE,
  PROP_WIDTH_CHARS,
  PROP_WRAP_WIDTH,
  PROP_ALIGN,

  /* Style args */
  PROP_BACKGROUND,
  PROP_FOREGROUND,
  PROP_BACKGROUND_RGBA,
  PROP_FOREGROUND_RGBA,
  PROP_FONT,
  PROP_FONT_DESC,
  PROP_FAMILY,
  PROP_STYLE,
  PROP_VARIANT,
  PROP_WEIGHT,
  PROP_STRETCH,
  PROP_SIZE,
  PROP_SIZE_POINTS,
  PROP_SCALE,
  PROP_EDITABLE,
  PROP_STRIKETHROUGH,
  PROP_UNDERLINE,
  PROP_RISE,
  PROP_LANGUAGE,
  PROP_ELLIPSIZE,
  PROP_WRAP_MODE,

  /* Whether-a-style-arg-is-set args */
  PROP_BACKGROUND_SET,
  PROP_FOREGROUND_SET,
  PROP_FAMILY_SET,
  PROP_STYLE_SET,
  PROP_VARIANT_SET,
  PROP_WEIGHT_SET,
  PROP_STRETCH_SET,
  PROP_SIZE_SET,
  PROP_SCALE_SET,
  PROP_EDITABLE_SET,
  PROP_STRIKETHROUGH_SET,
  PROP_UNDERLINE_SET,
  PROP_RISE_SET,
  PROP_LANGUAGE_SET,
  PROP_ELLIPSIZE_SET,
  PROP_ALIGN_SET
};

static guint text_cell_renderer_signals [LAST_SIGNAL];

#define GHB_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path"

#define GHB_CELL_RENDERER_TEXT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GHB_TYPE_CELL_RENDERER_TEXT, GhbCellRendererTextPrivate))

typedef struct _GhbCellRendererTextPrivate GhbCellRendererTextPrivate;
struct _GhbCellRendererTextPrivate
{
  guint single_paragraph : 1;
  guint language_set : 1;
  guint markup_set : 1;
  guint ellipsize_set : 1;
  guint align_set : 1;

  gulong focus_out_id;
  PangoLanguage *language;
  PangoEllipsizeMode ellipsize;
  PangoWrapMode wrap_mode;
  PangoAlignment align;

  gulong populate_popup_id;
  gulong entry_menu_popdown_timeout;
  gboolean in_entry_menu;

  gint width_chars;
  gint wrap_width;

  GtkWidget *entry;
};

G_DEFINE_TYPE (GhbCellRendererText, ghb_cell_renderer_text, GTK_TYPE_CELL_RENDERER)

static void
ghb_cell_renderer_text_init (GhbCellRendererText *celltext)
{
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);

  g_object_set(celltext, "xalign", 0.0, NULL);
  g_object_set(celltext, "yalign", 0.5, NULL);
  g_object_set(celltext, "xpad", 2, NULL);
  g_object_set(celltext, "ypad", 2, NULL);
  celltext->font_scale = 1.0;
  celltext->fixed_height_rows = -1;
  celltext->font = pango_font_description_new ();

  priv->width_chars = -1;
  priv->wrap_width = -1;
  priv->wrap_mode = PANGO_WRAP_CHAR;
  priv->align = PANGO_ALIGN_LEFT;
  priv->align_set = FALSE;
}

static void
ghb_cell_renderer_text_class_init (GhbCellRendererTextClass *class)
{
  GObjectClass *object_class = G_OBJECT_CLASS (class);
  GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);

  object_class->finalize = ghb_cell_renderer_text_finalize;

  object_class->get_property = ghb_cell_renderer_text_get_property;
  object_class->set_property = ghb_cell_renderer_text_set_property;

  cell_class->get_size = ghb_cell_renderer_text_get_size;
#if GTK_CHECK_VERSION(3, 90, 0)
  cell_class->snapshot = ghb_cell_renderer_text_snapshot;
#else
  cell_class->render = ghb_cell_renderer_text_render;
#endif
  cell_class->start_editing = ghb_cell_renderer_text_start_editing;

  g_object_class_install_property (object_class,
                                   PROP_TEXT,
                                   g_param_spec_string ("text",
                                                        P_("Text"),
                                                        P_("Text to render"),
                                                        NULL,
                                                        GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_MARKUP,
                                   g_param_spec_string ("markup",
                                                        P_("Markup"),
                                                        P_("Marked up text to render"),
                                                        NULL,
                                                        GTK_PARAM_WRITABLE));

  g_object_class_install_property (object_class,
                   PROP_ATTRIBUTES,
                   g_param_spec_boxed ("attributes",
                               P_("Attributes"),
                               P_("A list of style attributes to apply to the text of the renderer"),
                               PANGO_TYPE_ATTR_LIST,
                               GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_SINGLE_PARAGRAPH_MODE,
                                   g_param_spec_boolean ("single-paragraph-mode",
                                                         P_("Single Paragraph Mode"),
                                                         P_("Whether or not to keep all text in a single paragraph"),
                                                         FALSE,
                                                         GTK_PARAM_READWRITE));


  g_object_class_install_property (object_class,
                                   PROP_BACKGROUND,
                                   g_param_spec_string ("background",
                                                        P_("Background color name"),
                                                        P_("Background color as a string"),
                                                        NULL,
                                                        GTK_PARAM_WRITABLE));

  g_object_class_install_property (object_class,
                                   PROP_BACKGROUND_RGBA,
                                   g_param_spec_boxed ("background-rgba",
                                                       P_("Background color"),
                                                       P_("Background color as a GdkColor"),
                                                       GDK_TYPE_RGBA,
                                                       GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_FOREGROUND,
                                   g_param_spec_string ("foreground",
                                                        P_("Foreground color name"),
                                                        P_("Foreground color as a string"),
                                                        NULL,
                                                        GTK_PARAM_WRITABLE));

  g_object_class_install_property (object_class,
                                   PROP_FOREGROUND_RGBA,
                                   g_param_spec_boxed ("foreground-rgba",
                                                       P_("Foreground color"),
                                                       P_("Foreground color as a GdkColor"),
                                                       GDK_TYPE_RGBA,
                                                       GTK_PARAM_READWRITE));


  g_object_class_install_property (object_class,
                                   PROP_EDITABLE,
                                   g_param_spec_boolean ("editable",
                                                         P_("Editable"),
                                                         P_("Whether the text can be modified by the user"),
                                                         FALSE,
                                                         GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_FONT,
                                   g_param_spec_string ("font",
                                                        P_("Font"),
                                                        P_("Font description as a string, e.g. \"Sans Italic 12\""),
                                                        NULL,
                                                        GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_FONT_DESC,
                                   g_param_spec_boxed ("font-desc",
                                                       P_("Font"),
                                                       P_("Font description as a PangoFontDescription struct"),
                                                       PANGO_TYPE_FONT_DESCRIPTION,
                                                       GTK_PARAM_READWRITE));


  g_object_class_install_property (object_class,
                                   PROP_FAMILY,
                                   g_param_spec_string ("family",
                                                        P_("Font family"),
                                                        P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
                                                        NULL,
                                                        GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_STYLE,
                                   g_param_spec_enum ("style",
                                                      P_("Font style"),
                                                      P_("Font style"),
                                                      PANGO_TYPE_STYLE,
                                                      PANGO_STYLE_NORMAL,
                                                      GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_VARIANT,
                                   g_param_spec_enum ("variant",
                                                     P_("Font variant"),
                                                     P_("Font variant"),
                                                      PANGO_TYPE_VARIANT,
                                                      PANGO_VARIANT_NORMAL,
                                                      GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_WEIGHT,
                                   g_param_spec_int ("weight",
                                                     P_("Font weight"),
                                                     P_("Font weight"),
                                                     0,
                                                     G_MAXINT,
                                                     PANGO_WEIGHT_NORMAL,
                                                     GTK_PARAM_READWRITE));

   g_object_class_install_property (object_class,
                                   PROP_STRETCH,
                                   g_param_spec_enum ("stretch",
                                                      P_("Font stretch"),
                                                      P_("Font stretch"),
                                                      PANGO_TYPE_STRETCH,
                                                      PANGO_STRETCH_NORMAL,
                                                      GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_SIZE,
                                   g_param_spec_int ("size",
                                                     P_("Font size"),
                                                     P_("Font size"),
                                                     0,
                                                     G_MAXINT,
                                                     0,
                                                     GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_SIZE_POINTS,
                                   g_param_spec_double ("size-points",
                                                        P_("Font points"),
                                                        P_("Font size in points"),
                                                        0.0,
                                                        G_MAXDOUBLE,
                                                        0.0,
                                                        GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_SCALE,
                                   g_param_spec_double ("scale",
                                                        P_("Font scale"),
                                                        P_("Font scaling factor"),
                                                        0.0,
                                                        G_MAXDOUBLE,
                                                        1.0,
                                                        GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_RISE,
                                   g_param_spec_int ("rise",
                                                     P_("Rise"),
                                                     P_("Offset of text above the baseline "
                            "(below the baseline if rise is negative)"),
                                                     -G_MAXINT,
                                                     G_MAXINT,
                                                     0,
                                                     GTK_PARAM_READWRITE));


  g_object_class_install_property (object_class,
                                   PROP_STRIKETHROUGH,
                                   g_param_spec_boolean ("strikethrough",
                                                         P_("Strikethrough"),
                                                         P_("Whether to strike through the text"),
                                                         FALSE,
                                                         GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_UNDERLINE,
                                   g_param_spec_enum ("underline",
                                                      P_("Underline"),
                                                      P_("Style of underline for this text"),
                                                      PANGO_TYPE_UNDERLINE,
                                                      PANGO_UNDERLINE_NONE,
                                                      GTK_PARAM_READWRITE));

  g_object_class_install_property (object_class,
                                   PROP_LANGUAGE,
                                   g_param_spec_string ("language",
                                                        P_("Language"),
                                                        P_("The language this text is in, as an ISO code. "
                               "Pango can use this as a hint when rendering the text. "
                               "If you don't understand this parameter, you probably don't need it"),
                                                        NULL,
                                                        GTK_PARAM_READWRITE));


  /**
   * GhbCellRendererText:ellipsize:
   *
   * Specifies the preferred place to ellipsize the string, if the cell renderer
   * does not have enough room to display the entire string. Setting it to
   * %PANGO_ELLIPSIZE_NONE turns off ellipsizing. See the wrap-width property
   * for another way of making the text fit into a given width.
   *
   * Since: 2.6
   */
  g_object_class_install_property (object_class,
                                   PROP_ELLIPSIZE,
                                   g_param_spec_enum ("ellipsize",
                              P_("Ellipsize"),
                              P_("The preferred place to ellipsize the string, "
                             "if the cell renderer does not have enough room "
                             "to display the entire string"),
                              PANGO_TYPE_ELLIPSIZE_MODE,
                              PANGO_ELLIPSIZE_NONE,
                              GTK_PARAM_READWRITE));

  /**
   * GhbCellRendererText:width-chars:
   *
   * The desired width of the cell, in characters. If this property is set to
   * -1, the width will be calculated automatically, otherwise the cell will
   * request either 3 characters or the property value, whichever is greater.
   *
   * Since: 2.6
   **/
  g_object_class_install_property (object_class,
                                   PROP_WIDTH_CHARS,
                                   g_param_spec_int ("width-chars",
                                                     P_("Width In Characters"),
                                                     P_("The desired width of the label, in characters"),
                                                     -1,
                                                     G_MAXINT,
                                                     -1,
                                                     GTK_PARAM_READWRITE));

  /**
   * GhbCellRendererText:wrap-mode:
   *
   * Specifies how to break the string into multiple lines, if the cell
   * renderer does not have enough room to display the entire string.
   * This property has no effect unless the wrap-width property is set.
   *
   * Since: 2.8
   */
  g_object_class_install_property (object_class,
                                   PROP_WRAP_MODE,
                                   g_param_spec_enum ("wrap-mode",
                              P_("Wrap mode"),
                              P_("How to break the string into multiple lines, "
                             "if the cell renderer does not have enough room "
                             "to display the entire string"),
                              PANGO_TYPE_WRAP_MODE,
                              PANGO_WRAP_CHAR,
                              GTK_PARAM_READWRITE));

  /**
   * GhbCellRendererText:wrap-width:
   *
   * Specifies the width at which the text is wrapped. The wrap-mode property can
   * be used to influence at what character positions the line breaks can be placed.
   * Setting wrap-width to -1 turns wrapping off.
   *
   * Since: 2.8
   */
  g_object_class_install_property (object_class,
                   PROP_WRAP_WIDTH,
                   g_param_spec_int ("wrap-width",
                             P_("Wrap width"),
                             P_("The width at which the text is wrapped"),
                             -1,
                             G_MAXINT,
                             -1,
                             GTK_PARAM_READWRITE));

  /**
   * GhbCellRendererText:alignment:
   *
   * Specifies how to align the lines of text with respect to each other.
   *
   * Note that this property describes how to align the lines of text in
   * case there are several of them. The "xalign" property of #GtkCellRenderer,
   * on the other hand, sets the horizontal alignment of the whole text.
   *
   * Since: 2.10
   */
  g_object_class_install_property (object_class,
                                   PROP_ALIGN,
                                   g_param_spec_enum ("alignment",
                              P_("Alignment"),
                              P_("How to align the lines"),
                              PANGO_TYPE_ALIGNMENT,
                              PANGO_ALIGN_LEFT,
                              GTK_PARAM_READWRITE));

  /* Style props are set or not */

#define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))

  ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
                P_("Background set"),
                P_("Whether this tag affects the background color"));

  ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
                P_("Foreground set"),
                P_("Whether this tag affects the foreground color"));

  ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
                P_("Editability set"),
                P_("Whether this tag affects text editability"));

  ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
                P_("Font family set"),
                P_("Whether this tag affects the font family"));

  ADD_SET_PROP ("style-set", PROP_STYLE_SET,
                P_("Font style set"),
                P_("Whether this tag affects the font style"));

  ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
                P_("Font variant set"),
                P_("Whether this tag affects the font variant"));

  ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
                P_("Font weight set"),
                P_("Whether this tag affects the font weight"));

  ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
                P_("Font stretch set"),
                P_("Whether this tag affects the font stretch"));

  ADD_SET_PROP ("size-set", PROP_SIZE_SET,
                P_("Font size set"),
                P_("Whether this tag affects the font size"));

  ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
                P_("Font scale set"),
                P_("Whether this tag scales the font size by a factor"));

  ADD_SET_PROP ("rise-set", PROP_RISE_SET,
                P_("Rise set"),
                P_("Whether this tag affects the rise"));

  ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
                P_("Strikethrough set"),
                P_("Whether this tag affects strikethrough"));

  ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
                P_("Underline set"),
                P_("Whether this tag affects underlining"));

  ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
                P_("Language set"),
                P_("Whether this tag affects the language the text is rendered as"));

  ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
                P_("Ellipsize set"),
                P_("Whether this tag affects the ellipsize mode"));

  ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
                P_("Align set"),
                P_("Whether this tag affects the alignment mode"));

  /**
   * GhbCellRendererText::edited
   * @renderer: the object which received the signal
   * @path: the path identifying the edited cell
   * @new_text: the new text
   *
   * This signal is emitted after @renderer has been edited.
   *
   * It is the responsibility of the application to update the model
   * and store @new_text at the position indicated by @path.
   */
  text_cell_renderer_signals [EDITED] =
    g_signal_new (I_("edited"),
          G_OBJECT_CLASS_TYPE (object_class),
          G_SIGNAL_RUN_LAST,
          G_STRUCT_OFFSET (GhbCellRendererTextClass, edited),
          NULL, NULL,
          ghb_marshal_VOID__STRING_STRING,
          G_TYPE_NONE, 2,
          G_TYPE_STRING,
          G_TYPE_STRING);

  text_cell_renderer_signals [KEYPRESS] =
    g_signal_new (I_("key-press-event"),
          G_OBJECT_CLASS_TYPE (object_class),
          G_SIGNAL_RUN_LAST,
          G_STRUCT_OFFSET (GhbCellRendererTextClass, keypress),
          NULL, NULL,
          ghb_marshal_BOOLEAN__BOXED,
          G_TYPE_BOOLEAN, 1,
          GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);

  g_type_class_add_private (object_class, sizeof (GhbCellRendererTextPrivate));
}

static void
ghb_cell_renderer_text_finalize (GObject *object)
{
  GhbCellRendererText *celltext = GHB_CELL_RENDERER_TEXT (object);
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (object);

  pango_font_description_free (celltext->font);

  g_free (celltext->text);

  if (celltext->extra_attrs)
    pango_attr_list_unref (celltext->extra_attrs);

  if (priv->language)
    g_object_unref (priv->language);

  (* G_OBJECT_CLASS (ghb_cell_renderer_text_parent_class)->finalize) (object);
}

static PangoFontMask
get_property_font_set_mask (guint prop_id)
{
  switch (prop_id)
    {
    case PROP_FAMILY_SET:
      return PANGO_FONT_MASK_FAMILY;
    case PROP_STYLE_SET:
      return PANGO_FONT_MASK_STYLE;
    case PROP_VARIANT_SET:
      return PANGO_FONT_MASK_VARIANT;
    case PROP_WEIGHT_SET:
      return PANGO_FONT_MASK_WEIGHT;
    case PROP_STRETCH_SET:
      return PANGO_FONT_MASK_STRETCH;
    case PROP_SIZE_SET:
      return PANGO_FONT_MASK_SIZE;
    }

  return 0;
}

static void
ghb_cell_renderer_text_get_property (GObject        *object,
                     guint           param_id,
                     GValue         *value,
                     GParamSpec     *pspec)
{
  GhbCellRendererText *celltext = GHB_CELL_RENDERER_TEXT (object);
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (object);

  switch (param_id)
    {
    case PROP_TEXT:
      g_value_set_string (value, celltext->text);
      break;

    case PROP_ATTRIBUTES:
      g_value_set_boxed (value, celltext->extra_attrs);
      break;

    case PROP_SINGLE_PARAGRAPH_MODE:
      g_value_set_boolean (value, priv->single_paragraph);
      break;

    case PROP_BACKGROUND_RGBA:
      {
        g_value_set_boxed(value, &celltext->background);
      }
      break;

    case PROP_FOREGROUND_RGBA:
      {
        g_value_set_boxed(value, &celltext->foreground);
      }
      break;

    case PROP_FONT:
        g_value_take_string (value, pango_font_description_to_string (celltext->font));
      break;

    case PROP_FONT_DESC:
      g_value_set_boxed (value, celltext->font);
      break;

    case PROP_FAMILY:
      g_value_set_string (value, pango_font_description_get_family (celltext->font));
      break;

    case PROP_STYLE:
      g_value_set_enum (value, pango_font_description_get_style (celltext->font));
      break;

    case PROP_VARIANT:
      g_value_set_enum (value, pango_font_description_get_variant (celltext->font));
      break;

    case PROP_WEIGHT:
      g_value_set_int (value, pango_font_description_get_weight (celltext->font));
      break;

    case PROP_STRETCH:
      g_value_set_enum (value, pango_font_description_get_stretch (celltext->font));
      break;

    case PROP_SIZE:
      g_value_set_int (value, pango_font_description_get_size (celltext->font));
      break;

    case PROP_SIZE_POINTS:
      g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE);
      break;

    case PROP_SCALE:
      g_value_set_double (value, celltext->font_scale);
      break;

    case PROP_EDITABLE:
      g_value_set_boolean (value, celltext->editable);
      break;

    case PROP_STRIKETHROUGH:
      g_value_set_boolean (value, celltext->strikethrough);
      break;

    case PROP_UNDERLINE:
      g_value_set_enum (value, celltext->underline_style);
      break;

    case PROP_RISE:
      g_value_set_int (value, celltext->rise);
      break;

    case PROP_LANGUAGE:
      g_value_set_static_string (value, pango_language_to_string (priv->language));
      break;

    case PROP_ELLIPSIZE:
      g_value_set_enum (value, priv->ellipsize);
      break;

    case PROP_WRAP_MODE:
      g_value_set_enum (value, priv->wrap_mode);
      break;

    case PROP_WRAP_WIDTH:
      g_value_set_int (value, priv->wrap_width);
      break;

    case PROP_ALIGN:
      g_value_set_enum (value, priv->align);
      break;

    case PROP_BACKGROUND_SET:
      g_value_set_boolean (value, celltext->background_set);
      break;

    case PROP_FOREGROUND_SET:
      g_value_set_boolean (value, celltext->foreground_set);
      break;

    case PROP_FAMILY_SET:
    case PROP_STYLE_SET:
    case PROP_VARIANT_SET:
    case PROP_WEIGHT_SET:
    case PROP_STRETCH_SET:
    case PROP_SIZE_SET:
      {
    PangoFontMask mask = get_property_font_set_mask (param_id);
    g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0);

    break;
      }

    case PROP_SCALE_SET:
      g_value_set_boolean (value, celltext->scale_set);
      break;

    case PROP_EDITABLE_SET:
      g_value_set_boolean (value, celltext->editable_set);
      break;

    case PROP_STRIKETHROUGH_SET:
      g_value_set_boolean (value, celltext->strikethrough_set);
      break;

    case PROP_UNDERLINE_SET:
      g_value_set_boolean (value, celltext->underline_set);
      break;

    case  PROP_RISE_SET:
      g_value_set_boolean (value, celltext->rise_set);
      break;

    case PROP_LANGUAGE_SET:
      g_value_set_boolean (value, priv->language_set);
      break;

    case PROP_ELLIPSIZE_SET:
      g_value_set_boolean (value, priv->ellipsize_set);
      break;

    case PROP_ALIGN_SET:
      g_value_set_boolean (value, priv->align_set);
      break;

    case PROP_WIDTH_CHARS:
      g_value_set_int (value, priv->width_chars);
      break;

    case PROP_BACKGROUND:
    case PROP_FOREGROUND:
    case PROP_MARKUP:
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
    }
}


static void
set_bg_color (GhbCellRendererText *celltext,
              GdkRGBA             *rgba)
{
  if (rgba)
    {
      if (!celltext->background_set)
        {
          celltext->background_set = TRUE;
          g_object_notify (G_OBJECT (celltext), "background-set");
        }

      celltext->background = *rgba;
    }
  else
    {
      if (celltext->background_set)
        {
          celltext->background_set = FALSE;
          g_object_notify (G_OBJECT (celltext), "background-set");
        }
    }
}


static void
set_fg_color (GhbCellRendererText *celltext,
              GdkRGBA             *rgba)
{
  if (rgba)
    {
      if (!celltext->foreground_set)
        {
          celltext->foreground_set = TRUE;
          g_object_notify (G_OBJECT (celltext), "foreground-set");
        }

      celltext->foreground = *rgba;
    }
  else
    {
      if (celltext->foreground_set)
        {
          celltext->foreground_set = FALSE;
          g_object_notify (G_OBJECT (celltext), "foreground-set");
        }
    }
}

static PangoFontMask
set_font_desc_fields (PangoFontDescription *desc,
              PangoFontMask         to_set)
{
  PangoFontMask changed_mask = 0;

  if (to_set & PANGO_FONT_MASK_FAMILY)
    {
      const char *family = pango_font_description_get_family (desc);
      if (!family)
    {
      family = "sans";
      changed_mask |= PANGO_FONT_MASK_FAMILY;
    }

      pango_font_description_set_family (desc, family);
    }
  if (to_set & PANGO_FONT_MASK_STYLE)
    pango_font_description_set_style (desc, pango_font_description_get_style (desc));
  if (to_set & PANGO_FONT_MASK_VARIANT)
    pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
  if (to_set & PANGO_FONT_MASK_WEIGHT)
    pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
  if (to_set & PANGO_FONT_MASK_STRETCH)
    pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
  if (to_set & PANGO_FONT_MASK_SIZE)
    {
      gint size = pango_font_description_get_size (desc);
      if (size <= 0)
    {
      size = 10 * PANGO_SCALE;
      changed_mask |= PANGO_FONT_MASK_SIZE;
    }

      pango_font_description_set_size (desc, size);
    }

  return changed_mask;
}

static void
notify_set_changed (GObject       *object,
            PangoFontMask  changed_mask)
{
  if (changed_mask & PANGO_FONT_MASK_FAMILY)
    g_object_notify (object, "family-set");
  if (changed_mask & PANGO_FONT_MASK_STYLE)
    g_object_notify (object, "style-set");
  if (changed_mask & PANGO_FONT_MASK_VARIANT)
    g_object_notify (object, "variant-set");
  if (changed_mask & PANGO_FONT_MASK_WEIGHT)
    g_object_notify (object, "weight-set");
  if (changed_mask & PANGO_FONT_MASK_STRETCH)
    g_object_notify (object, "stretch-set");
  if (changed_mask & PANGO_FONT_MASK_SIZE)
    g_object_notify (object, "size-set");
}

static void
notify_fields_changed (GObject       *object,
               PangoFontMask  changed_mask)
{
  if (changed_mask & PANGO_FONT_MASK_FAMILY)
    g_object_notify (object, "family");
  if (changed_mask & PANGO_FONT_MASK_STYLE)
    g_object_notify (object, "style");
  if (changed_mask & PANGO_FONT_MASK_VARIANT)
    g_object_notify (object, "variant");
  if (changed_mask & PANGO_FONT_MASK_WEIGHT)
    g_object_notify (object, "weight");
  if (changed_mask & PANGO_FONT_MASK_STRETCH)
    g_object_notify (object, "stretch");
  if (changed_mask & PANGO_FONT_MASK_SIZE)
    g_object_notify (object, "size");
}

static void
set_font_description (GhbCellRendererText  *celltext,
                      PangoFontDescription *font_desc)
{
  GObject *object = G_OBJECT (celltext);
  PangoFontDescription *new_font_desc;
  PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;

  if (font_desc)
    new_font_desc = pango_font_description_copy (font_desc);
  else
    new_font_desc = pango_font_description_new ();

  old_mask = pango_font_description_get_set_fields (celltext->font);
  new_mask = pango_font_description_get_set_fields (new_font_desc);

  changed_mask = old_mask | new_mask;
  set_changed_mask = old_mask ^ new_mask;

  pango_font_description_free (celltext->font);
  celltext->font = new_font_desc;

  g_object_freeze_notify (object);

  g_object_notify (object, "font-desc");
  g_object_notify (object, "font");

  if (changed_mask & PANGO_FONT_MASK_FAMILY)
    g_object_notify (object, "family");
  if (changed_mask & PANGO_FONT_MASK_STYLE)
    g_object_notify (object, "style");
  if (changed_mask & PANGO_FONT_MASK_VARIANT)
    g_object_notify (object, "variant");
  if (changed_mask & PANGO_FONT_MASK_WEIGHT)
    g_object_notify (object, "weight");
  if (changed_mask & PANGO_FONT_MASK_STRETCH)
    g_object_notify (object, "stretch");
  if (changed_mask & PANGO_FONT_MASK_SIZE)
    {
      g_object_notify (object, "size");
      g_object_notify (object, "size-points");
    }

  notify_set_changed (object, set_changed_mask);

  g_object_thaw_notify (object);
}

static void
ghb_cell_renderer_text_set_property (GObject      *object,
                     guint         param_id,
                     const GValue *value,
                     GParamSpec   *pspec)
{
  GhbCellRendererText *celltext = GHB_CELL_RENDERER_TEXT (object);
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (object);

  switch (param_id)
    {
    case PROP_TEXT:
      g_free (celltext->text);

      if (priv->markup_set)
        {
          if (celltext->extra_attrs)
            pango_attr_list_unref (celltext->extra_attrs);
          celltext->extra_attrs = NULL;
          priv->markup_set = FALSE;
        }

      celltext->text = g_strdup (g_value_get_string (value));
      g_object_notify (object, "text");
      break;

    case PROP_ATTRIBUTES:
      if (celltext->extra_attrs)
    pango_attr_list_unref (celltext->extra_attrs);

      celltext->extra_attrs = g_value_get_boxed (value);
      if (celltext->extra_attrs)
        pango_attr_list_ref (celltext->extra_attrs);
      break;
    case PROP_MARKUP:
      {
    const gchar *str;
    gchar *text = NULL;
    GError *error = NULL;
    PangoAttrList *attrs = NULL;

    str = g_value_get_string (value);
    if (str && !pango_parse_markup (str,
                    -1,
                    0,
                    &attrs,
                    &text,
                    NULL,
                    &error))
      {
        g_warning ("Failed to set text from markup due to error parsing markup: %s",
               error->message);
        g_error_free (error);
        return;
      }

    g_free (celltext->text);

    if (celltext->extra_attrs)
      pango_attr_list_unref (celltext->extra_attrs);

    celltext->text = text;
    celltext->extra_attrs = attrs;
        priv->markup_set = TRUE;
      }
      break;

    case PROP_SINGLE_PARAGRAPH_MODE:
      priv->single_paragraph = g_value_get_boolean (value);
      break;

    case PROP_BACKGROUND:
      {
        GdkRGBA rgba;

        if (!g_value_get_string (value))
          set_bg_color (celltext, NULL);       /* reset to background_set to FALSE */
        else if (gdk_rgba_parse(&rgba, g_value_get_string(value)))
          set_bg_color (celltext, &rgba);
        else
          g_warning ("Don't know color `%s'", g_value_get_string(value));

        g_object_notify (object, "background-rgba");
      }
      break;

    case PROP_FOREGROUND:
      {
        GdkRGBA  rgba;

        if (!g_value_get_string (value))
          set_fg_color (celltext, NULL);       /* reset to foreground_set to FALSE */
        else if (gdk_rgba_parse(&rgba, g_value_get_string(value)))
          set_fg_color (celltext, &rgba);
        else
          g_warning ("Don't know color `%s'", g_value_get_string (value));

        g_object_notify (object, "foreground-rgba");
      }
      break;

    case PROP_BACKGROUND_RGBA:
      /* This notifies the GObject itself. */
      set_bg_color (celltext, g_value_get_boxed (value));
      break;

    case PROP_FOREGROUND_RGBA:
      /* This notifies the GObject itself. */
      set_fg_color (celltext, g_value_get_boxed (value));
      break;

    case PROP_FONT:
      {
        PangoFontDescription *font_desc = NULL;
        const gchar *name;

        name = g_value_get_string (value);

        if (name)
          font_desc = pango_font_description_from_string (name);

        set_font_description (celltext, font_desc);

    pango_font_description_free (font_desc);

    if (celltext->fixed_height_rows != -1)
      celltext->calc_fixed_height = TRUE;
      }
      break;

    case PROP_FONT_DESC:
      set_font_description (celltext, g_value_get_boxed (value));

      if (celltext->fixed_height_rows != -1)
    celltext->calc_fixed_height = TRUE;
      break;

    case PROP_FAMILY:
    case PROP_STYLE:
    case PROP_VARIANT:
    case PROP_WEIGHT:
    case PROP_STRETCH:
    case PROP_SIZE:
    case PROP_SIZE_POINTS:
      {
    PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font);

    switch (param_id)
      {
      case PROP_FAMILY:
        pango_font_description_set_family (celltext->font,
                           g_value_get_string (value));
        break;
      case PROP_STYLE:
        pango_font_description_set_style (celltext->font,
                          g_value_get_enum (value));
        break;
      case PROP_VARIANT:
        pango_font_description_set_variant (celltext->font,
                        g_value_get_enum (value));
        break;
      case PROP_WEIGHT:
        pango_font_description_set_weight (celltext->font,
                           g_value_get_int (value));
        break;
      case PROP_STRETCH:
        pango_font_description_set_stretch (celltext->font,
                        g_value_get_enum (value));
        break;
      case PROP_SIZE:
        pango_font_description_set_size (celltext->font,
                         g_value_get_int (value));
        g_object_notify (object, "size-points");
        break;
      case PROP_SIZE_POINTS:
        pango_font_description_set_size (celltext->font,
                         g_value_get_double (value) * PANGO_SCALE);
        g_object_notify (object, "size");
        break;
      }

    if (celltext->fixed_height_rows != -1)
      celltext->calc_fixed_height = TRUE;

    notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font));
    g_object_notify (object, "font-desc");
    g_object_notify (object, "font");

    break;
      }

    case PROP_SCALE:
      celltext->font_scale = g_value_get_double (value);
      celltext->scale_set = TRUE;
      if (celltext->fixed_height_rows != -1)
    celltext->calc_fixed_height = TRUE;
      g_object_notify (object, "scale-set");
      break;

    case PROP_EDITABLE:
      celltext->editable = g_value_get_boolean (value);
      celltext->editable_set = TRUE;
      if (celltext->editable)
        g_object_set(celltext, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
      else
        g_object_set(celltext, "mode", GTK_CELL_RENDERER_MODE_INERT, NULL);
      g_object_notify (object, "editable-set");
      break;

    case PROP_STRIKETHROUGH:
      celltext->strikethrough = g_value_get_boolean (value);
      celltext->strikethrough_set = TRUE;
      g_object_notify (object, "strikethrough-set");
      break;

    case PROP_UNDERLINE:
      celltext->underline_style = g_value_get_enum (value);
      celltext->underline_set = TRUE;
      g_object_notify (object, "underline-set");

      break;

    case PROP_RISE:
      celltext->rise = g_value_get_int (value);
      celltext->rise_set = TRUE;
      g_object_notify (object, "rise-set");
      if (celltext->fixed_height_rows != -1)
    celltext->calc_fixed_height = TRUE;
      break;

    case PROP_LANGUAGE:
      priv->language_set = TRUE;
      if (priv->language)
        g_object_unref (priv->language);
      priv->language = pango_language_from_string (g_value_get_string (value));
      g_object_notify (object, "language-set");
      break;

    case PROP_ELLIPSIZE:
      priv->ellipsize = g_value_get_enum (value);
      priv->ellipsize_set = TRUE;
      g_object_notify (object, "ellipsize-set");
      break;

    case PROP_WRAP_MODE:
      priv->wrap_mode = g_value_get_enum (value);
      break;

    case PROP_WRAP_WIDTH:
      priv->wrap_width = g_value_get_int (value);
      break;

    case PROP_WIDTH_CHARS:
      priv->width_chars = g_value_get_int (value);
      break;

    case PROP_ALIGN:
      priv->align = g_value_get_enum (value);
      priv->align_set = TRUE;
      g_object_notify (object, "align-set");
      break;

    case PROP_BACKGROUND_SET:
      celltext->background_set = g_value_get_boolean (value);
      break;

    case PROP_FOREGROUND_SET:
      celltext->foreground_set = g_value_get_boolean (value);
      break;

    case PROP_FAMILY_SET:
    case PROP_STYLE_SET:
    case PROP_VARIANT_SET:
    case PROP_WEIGHT_SET:
    case PROP_STRETCH_SET:
    case PROP_SIZE_SET:
      if (!g_value_get_boolean (value))
    {
      pango_font_description_unset_fields (celltext->font,
                           get_property_font_set_mask (param_id));
    }
      else
    {
      PangoFontMask changed_mask;

      changed_mask = set_font_desc_fields (celltext->font,
                           get_property_font_set_mask (param_id));
      notify_fields_changed (G_OBJECT (celltext), changed_mask);
    }
      break;

    case PROP_SCALE_SET:
      celltext->scale_set = g_value_get_boolean (value);
      break;

    case PROP_EDITABLE_SET:
      celltext->editable_set = g_value_get_boolean (value);
      break;

    case PROP_STRIKETHROUGH_SET:
      celltext->strikethrough_set = g_value_get_boolean (value);
      break;

    case PROP_UNDERLINE_SET:
      celltext->underline_set = g_value_get_boolean (value);
      break;

    case PROP_RISE_SET:
      celltext->rise_set = g_value_get_boolean (value);
      break;

    case PROP_LANGUAGE_SET:
      priv->language_set = g_value_get_boolean (value);
      break;

    case PROP_ELLIPSIZE_SET:
      priv->ellipsize_set = g_value_get_boolean (value);
      break;

    case PROP_ALIGN_SET:
      priv->align_set = g_value_get_boolean (value);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
    }
}

/**
 * ghb_cell_renderer_text_new:
 *
 * Creates a new #GhbCellRendererText. Adjust how text is drawn using
 * object properties. Object properties can be
 * set globally (with g_object_set()). Also, with #GtkTreeViewColumn,
 * you can bind a property to a value in a #GtkTreeModel. For example,
 * you can bind the "text" property on the cell renderer to a string
 * value in the model, thus rendering a different string in each row
 * of the #GtkTreeView
 *
 * Return value: the new cell renderer
 **/
GtkCellRenderer *
ghb_cell_renderer_text_new (void)
{
  return g_object_new (GHB_TYPE_CELL_RENDERER_TEXT, NULL);
}

static void
add_attr (PangoAttrList  *attr_list,
          PangoAttribute *attr)
{
  attr->start_index = 0;
  attr->end_index = G_MAXINT;

  pango_attr_list_insert (attr_list, attr);
}

static PangoLayout*
get_layout (GhbCellRendererText *celltext,
            GtkWidget           *widget,
            gboolean             will_render,
            GtkCellRendererState flags)
{
  PangoAttrList *attr_list;
  PangoLayout *layout;
  PangoUnderline uline;
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);

  layout = gtk_widget_create_pango_layout (widget, celltext->text);

  if (celltext->extra_attrs)
    attr_list = pango_attr_list_copy (celltext->extra_attrs);
  else
    attr_list = pango_attr_list_new ();

  pango_layout_set_single_paragraph_mode (layout, priv->single_paragraph);

  if (will_render)
    {
      /* Add options that affect appearance but not size */

      /* note that background doesn't go here, since it affects
       * background_area not the PangoLayout area
       */

      if (celltext->foreground_set
      && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
        {
          add_attr(attr_list,
                   pango_attr_foreground_new(celltext->foreground.red,
                                             celltext->foreground.green,
                                             celltext->foreground.blue));
        }

      if (celltext->strikethrough_set)
        add_attr (attr_list,
                  pango_attr_strikethrough_new (celltext->strikethrough));
    }

  add_attr (attr_list, pango_attr_font_desc_new (celltext->font));

  if (celltext->scale_set &&
      celltext->font_scale != 1.0)
    add_attr (attr_list, pango_attr_scale_new (celltext->font_scale));

  if (celltext->underline_set)
    uline = celltext->underline_style;
  else
    uline = PANGO_UNDERLINE_NONE;

  if (priv->language_set)
    add_attr (attr_list, pango_attr_language_new (priv->language));

  if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT)
    {
      switch (uline)
        {
        case PANGO_UNDERLINE_NONE:
          uline = PANGO_UNDERLINE_SINGLE;
          break;

        case PANGO_UNDERLINE_SINGLE:
          uline = PANGO_UNDERLINE_DOUBLE;
          break;

        default:
          break;
        }
    }

  if (uline != PANGO_UNDERLINE_NONE)
    add_attr (attr_list, pango_attr_underline_new (celltext->underline_style));

  if (celltext->rise_set)
    add_attr (attr_list, pango_attr_rise_new (celltext->rise));

  if (priv->ellipsize_set)
    pango_layout_set_ellipsize (layout, priv->ellipsize);
  else
    pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);

  if (priv->wrap_width != -1)
    {
      pango_layout_set_width (layout, priv->wrap_width * PANGO_SCALE);
      pango_layout_set_wrap (layout, priv->wrap_mode);
    }
  else
    {
      pango_layout_set_width (layout, -1);
      pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
    }

  if (priv->align_set)
    pango_layout_set_alignment (layout, priv->align);
  else
    {
      PangoAlignment align;

      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
    align = PANGO_ALIGN_RIGHT;
      else
    align = PANGO_ALIGN_LEFT;

      pango_layout_set_alignment (layout, align);
    }

  pango_layout_set_attributes (layout, attr_list);

  pango_attr_list_unref (attr_list);

  return layout;
}

static void
get_size (GtkCellRenderer *cell,
      GtkWidget       *widget,
      MyGdkRectangle    *cell_area,
      PangoLayout     *layout,
      gint            *x_offset,
      gint            *y_offset,
      gint            *width,
      gint            *height)
{
  GhbCellRendererText *celltext = (GhbCellRendererText *) cell;
  PangoRectangle rect;
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (cell);

  gint cell_width, cell_height, cell_xpad, cell_ypad;
  gfloat cell_xalign, cell_yalign;

  gtk_cell_renderer_get_fixed_size(cell, &cell_width, &cell_height);
  gtk_cell_renderer_get_alignment(cell, &cell_xalign, &cell_yalign);
  gtk_cell_renderer_get_padding(cell, &cell_xpad, &cell_ypad);

  if (celltext->calc_fixed_height)
    {
      PangoContext *context;
      PangoFontMetrics *metrics;
      PangoFontDescription *font_desc;
      gint row_height;

      font_desc = pango_font_description_copy_static(ghb_widget_get_font(widget));
      pango_font_description_merge_static(font_desc, celltext->font, TRUE);

      if (celltext->scale_set)
    pango_font_description_set_size (font_desc,
                     celltext->font_scale * pango_font_description_get_size (font_desc));

      context = gtk_widget_get_pango_context (widget);

      metrics = pango_context_get_metrics (context,
                       font_desc,
                       pango_context_get_language (context));
      row_height = (pango_font_metrics_get_ascent (metrics) +
            pango_font_metrics_get_descent (metrics));
      pango_font_metrics_unref (metrics);

      pango_font_description_free (font_desc);

      gtk_cell_renderer_set_fixed_size (cell,
                    cell_width, 2*cell_ypad +
                    celltext->fixed_height_rows * PANGO_PIXELS (row_height));

      if (height)
    {
          *height = cell_height;
      height = NULL;
    }
      celltext->calc_fixed_height = FALSE;
      if (width == NULL)
    return;
    }

  if (layout)
    g_object_ref (layout);
  else
    layout = get_layout (celltext, widget, FALSE, 0);

  pango_layout_get_pixel_extents(layout, NULL, &rect);

  if (cell_area)
    {
      rect.height = MIN(rect.height, cell_area->height - 2 * cell_ypad);
      rect.width = MIN(rect.width, cell_area->width - 2 * cell_xpad);

      if (x_offset)
    {
      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
        *x_offset = (1.0 - cell_xalign) * (cell_area->width - (2 * cell_xpad));
      else
        *x_offset = cell_xalign * (cell_area->width - (2 * cell_xpad));

      if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->wrap_width != -1)
        *x_offset = MAX(*x_offset, 0);
    }
      if (y_offset)
    {
      *y_offset = cell_yalign * (cell_area->height - (rect.height + (2 * cell_ypad)));
      *y_offset = MAX (*y_offset, 0);
    }
    }
  else
    {
      if (x_offset) *x_offset = 0;
      if (y_offset) *y_offset = 0;
    }

  if (height)
    *height = cell_ypad * 2 + rect.height;

  if (width)
    *width = cell_xpad * 2 + rect.width;

  g_object_unref (layout);
}


static void
ghb_cell_renderer_text_get_size (GtkCellRenderer *cell,
                 GtkWidget       *widget,
                 MyGdkRectangle  *cell_area,
                 gint            *x_offset,
                 gint            *y_offset,
                 gint            *width,
                 gint            *height)
{
  get_size (cell, widget, cell_area, NULL,
        x_offset, y_offset, width, height);
}

#if GTK_CHECK_VERSION(3, 90, 0)
static void ghb_cell_renderer_text_snapshot(
    GtkCellRenderer          *cell,
    GtkSnapshot              *snapshot,
    GtkWidget                *widget,
    MyGdkRectangle           *background_area,
    MyGdkRectangle           *cell_area,
    GtkCellRendererState      flags)
{
    GhbCellRendererText        * celltext = (GhbCellRendererText *) cell;
    GhbCellRendererTextPrivate * priv;
    GtkStyleContext            * context;
    PangoLayout                * layout;
    gint                         x_offset = 0;
    gint                         y_offset = 0;
    gint                         xpad, ypad;
    PangoRectangle               rect;

    priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (cell);

    layout = get_layout (celltext, widget, TRUE, flags);
    get_size(cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);
    context = gtk_widget_get_style_context(widget);

    if (celltext->background_set && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
    {
        gtk_snapshot_append_color(snapshot,
                                  &celltext->background,
                                  &GRAPHENE_RECT_INIT(
                                        background_area->x, background_area->y,
                                        background_area->width,
                                        background_area->height),
                                  "CellTextBackground");
    }


    gtk_cell_renderer_get_padding(cell, &xpad, &ypad);

    if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
        pango_layout_set_width(layout,
                (cell_area->width - x_offset - 2 * xpad) * PANGO_SCALE);
    else if (priv->wrap_width == -1)
        pango_layout_set_width(layout, -1);

    pango_layout_get_pixel_extents (layout, NULL, &rect);
    x_offset = x_offset - rect.x;

    gtk_snapshot_push_clip(snapshot,
                           &GRAPHENE_RECT_INIT(
                                cell_area->x, cell_area->y,
                                cell_area->width, cell_area->height),
                           "CellTextClip");

    gtk_snapshot_render_layout(snapshot, context,
                               cell_area->x + x_offset + xpad,
                               cell_area->y + y_offset + ypad, layout);

    gtk_snapshot_pop(snapshot);

    g_object_unref(layout);
}
#else
static void ghb_cell_renderer_text_render(
    GtkCellRenderer          *cell,
    cairo_t                  *cr,
    GtkWidget                *widget,
    MyGdkRectangle           *background_area,
    MyGdkRectangle           *cell_area,
    GtkCellRendererState      flags)
{
    GhbCellRendererText *celltext = (GhbCellRendererText *) cell;
    PangoLayout *layout;
    gint x_offset = 0;
    gint y_offset = 0;
    GhbCellRendererTextPrivate *priv;

    priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (cell);

    layout = get_layout (celltext, widget, TRUE, flags);
    get_size(cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);

    gint xpad, ypad;
#if 0
    GtkStateType state;
    gboolean sensitive;

    sensitive = gtk_cell_renderer_get_sensitive(cell);
    if (!sensitive)
    {
      state = GTK_STATE_INSENSITIVE;
    }
    else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
    {
        if (gtk_widget_has_focus (widget))
            state = GTK_STATE_SELECTED;
        else
            state = GTK_STATE_ACTIVE;
    }
    else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT &&
       gtk_widget_get_state(widget) == GTK_STATE_PRELIGHT)
    {
        state = GTK_STATE_PRELIGHT;
    }
    else
    {
        if (gtk_widget_get_state(widget) == GTK_STATE_INSENSITIVE)
            state = GTK_STATE_INSENSITIVE;
        else
            state = GTK_STATE_NORMAL;
    }
#endif

    gtk_cell_renderer_get_padding(cell, &xpad, &ypad);

    if (celltext->background_set &&
      (flags & GTK_CELL_RENDERER_SELECTED) == 0)
    {
        gdk_cairo_rectangle (cr, background_area);
        cairo_set_source_rgb (cr,
                celltext->background.red / 65535.,
                celltext->background.green / 65535.,
                celltext->background.blue / 65535.);
        cairo_fill (cr);
    }

    if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
        pango_layout_set_width (layout,
                (cell_area->width - x_offset - 2 * xpad) * PANGO_SCALE);
    else if (priv->wrap_width == -1)
        pango_layout_set_width (layout, -1);

    gtk_render_layout(gtk_widget_get_style_context(widget),
                      cr,
                      cell_area->x + x_offset + xpad,
                      cell_area->y + y_offset + ypad,
                      layout);

    g_object_unref (layout);
}
#endif

static gboolean
ghb_cell_renderer_text_keypress(
    GtkCellEditable *entry,
    GdkEventKey *event,
    gpointer data)
{
    gboolean result;
    g_signal_emit(
        data, text_cell_renderer_signals[KEYPRESS], 0, event, &result);
    return result;
}

static void
ghb_cell_renderer_text_editing_done (GtkCellEditable *entry,
                     gpointer         data)
{
  const gchar *path;
  const gchar *new_text;
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (data);

  priv->entry = NULL;

  if (priv->focus_out_id > 0)
    {
      g_signal_handler_disconnect (entry, priv->focus_out_id);
      priv->focus_out_id = 0;
    }

  if (priv->populate_popup_id > 0)
    {
      g_signal_handler_disconnect (entry, priv->populate_popup_id);
      priv->populate_popup_id = 0;
    }

  if (priv->entry_menu_popdown_timeout)
    {
      g_source_remove (priv->entry_menu_popdown_timeout);
      priv->entry_menu_popdown_timeout = 0;
    }

  gboolean editing_canceled;
  g_object_get(entry, "editing-canceled", &editing_canceled, NULL);
  gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data),
                  editing_canceled);
  if (editing_canceled)
    return;

  path = g_object_get_data (G_OBJECT (entry), GHB_CELL_RENDERER_TEXT_PATH);
  new_text = gtk_entry_get_text (GTK_ENTRY (entry));

  g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text);
}

static gboolean
popdown_timeout (gpointer data)
{
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (data);

  priv->entry_menu_popdown_timeout = 0;

  if (!gtk_widget_has_focus (priv->entry))
    ghb_cell_renderer_text_editing_done (GTK_CELL_EDITABLE (priv->entry), data);

  return FALSE;
}

static void
ghb_cell_renderer_text_popup_unmap (GtkMenu *menu,
                                    gpointer data)
{
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (data);

  priv->in_entry_menu = FALSE;

  if (priv->entry_menu_popdown_timeout)
    return;

  priv->entry_menu_popdown_timeout = gdk_threads_add_timeout (500, popdown_timeout,
                                                    data);
}

static void
ghb_cell_renderer_text_populate_popup (GtkEntry *entry,
                                       GtkMenu  *menu,
                                       gpointer  data)
{
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (data);

  if (priv->entry_menu_popdown_timeout)
    {
      g_source_remove (priv->entry_menu_popdown_timeout);
      priv->entry_menu_popdown_timeout = 0;
    }

  priv->in_entry_menu = TRUE;

  g_signal_connect (menu, "unmap",
                    G_CALLBACK (ghb_cell_renderer_text_popup_unmap), data);
}

static gboolean
ghb_cell_renderer_text_focus_out_event (GtkWidget *entry,
                                GdkEvent  *event,
                    gpointer   data)
{
  GhbCellRendererTextPrivate *priv;

  priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (data);

  if (priv->in_entry_menu)
    return FALSE;

  g_object_set(entry, "editing-canceled", TRUE, NULL);
  gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
  gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));

  /* entry needs focus-out-event */
  return FALSE;
}

static GtkCellEditable *
ghb_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
                      GdkEvent             *event,
                      GtkWidget            *widget,
                      const gchar          *path,
                      MyGdkRectangle       *background_area,
                      MyGdkRectangle       *cell_area,
                      GtkCellRendererState  flags)
{
    GhbCellRendererText *celltext;
    GhbCellRendererTextPrivate *priv;

    celltext = GHB_CELL_RENDERER_TEXT (cell);
    priv = GHB_CELL_RENDERER_TEXT_GET_PRIVATE (cell);

    /* If the cell isn't editable we return NULL. */
    if (celltext->editable == FALSE)
        return NULL;

    gint xalign;
    g_object_get(cell, "xalign", &xalign, NULL);
    priv->entry = g_object_new (GTK_TYPE_ENTRY,
                  "has-frame", FALSE,
                  "xalign", xalign,
                  NULL);

    if (celltext->text)
        gtk_entry_set_text (GTK_ENTRY (priv->entry), celltext->text);

    g_object_set_data_full (G_OBJECT (priv->entry),
            I_(GHB_CELL_RENDERER_TEXT_PATH), g_strdup (path), g_free);

    gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1);

    priv->in_entry_menu = FALSE;
    if (priv->entry_menu_popdown_timeout)
    {
        g_source_remove (priv->entry_menu_popdown_timeout);
        priv->entry_menu_popdown_timeout = 0;
    }

    g_signal_connect (priv->entry,
            "key-press-event",
            G_CALLBACK (ghb_cell_renderer_text_keypress),
            celltext);
    g_signal_connect (priv->entry,
            "editing_done",
            G_CALLBACK (ghb_cell_renderer_text_editing_done),
            celltext);
    priv->focus_out_id = g_signal_connect_after (priv->entry, "focus_out_event",
                           G_CALLBACK (ghb_cell_renderer_text_focus_out_event),
                           celltext);
    priv->populate_popup_id = g_signal_connect (priv->entry, "populate_popup",
                      G_CALLBACK (ghb_cell_renderer_text_populate_popup),
                      celltext);

    gtk_widget_show (priv->entry);

    return GTK_CELL_EDITABLE (priv->entry);
}

/**
 * ghb_cell_renderer_text_set_fixed_height_from_font:
 * @renderer: A #GhbCellRendererText
 * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1
 *
 * Sets the height of a renderer to explicitly be determined by the "font" and
 * "y_pad" property set on it.  Further changes in these properties do not
 * affect the height, so they must be accompanied by a subsequent call to this
 * function.  Using this function is unflexible, and should really only be used
 * if calculating the size of a cell is too slow (ie, a massive number of cells
 * displayed).  If @number_of_rows is -1, then the fixed height is unset, and
 * the height is determined by the properties again.
 **/
void
ghb_cell_renderer_text_set_fixed_height_from_font (GhbCellRendererText *renderer,
                           gint                 number_of_rows)
{
  g_return_if_fail (GHB_IS_CELL_RENDERER_TEXT (renderer));
  g_return_if_fail (number_of_rows == -1 || number_of_rows > 0);

  if (number_of_rows == -1)
    {
      gint width;
      g_object_get(renderer, "width", &width, NULL);
      gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer),
                    width,
                    -1);
    }
  else
    {
      renderer->fixed_height_rows = number_of_rows;
      renderer->calc_fixed_height = TRUE;
    }
}

