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Fix implementation of GtkFontButton:get_font_{family,face}

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Returns a PangoFont{Family,Face} even when the font dialogue
has never been popped up.
This commit is contained in:
Christian Persch 2011-09-12 01:18:58 +02:00
parent cc79b08441
commit b1ff243c57
1 changed files with 109 additions and 103 deletions
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212
gtk/gtkfontbutton.c
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@ -130,6 +130,27 @@ static void gtk_font_button_update_font_info (GtkFontButton *gfs);
static guint font_button_signals[LAST_SIGNAL] = { 0 }; static guint font_button_signals[LAST_SIGNAL] = { 0 };
static void
clear_font_data (GtkFontButton *font_button)
{
GtkFontButtonPrivate *priv = font_button->priv;
if (priv->font_family)
g_object_unref (priv->font_family);
priv->font_family = NULL;
if (priv->font_face)
g_object_unref (priv->font_face);
priv->font_face = NULL;
if (priv->font_desc)
pango_font_description_free (priv->font_desc);
priv->font_desc = NULL;
g_free (priv->fontname);
priv->fontname = NULL;
}
static void static void
clear_font_filter_data (GtkFontButton *font_button) clear_font_filter_data (GtkFontButton *font_button)
{ {
@ -142,6 +163,71 @@ clear_font_filter_data (GtkFontButton *font_button)
priv->font_filter_data_destroy = NULL; priv->font_filter_data_destroy = NULL;
} }
static gboolean
font_description_style_equal (const PangoFontDescription *a,
const PangoFontDescription *b)
{
return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) &&
pango_font_description_get_style (a) == pango_font_description_get_style (b) &&
pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) &&
pango_font_description_get_variant (a) == pango_font_description_get_variant (b));
}
static void
gtk_font_button_update_font_data (GtkFontButton *font_button)
{
GtkFontButtonPrivate *priv = font_button->priv;
PangoFontFamily **families;
PangoFontFace **faces;
gint n_families, n_faces, i;
const gchar *family;
g_assert (priv->font_desc != NULL);
priv->fontname = pango_font_description_to_string (priv->font_desc);
family = pango_font_description_get_family (priv->font_desc);
if (family == NULL)
return;
n_families = 0;
families = NULL;
pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (font_button)),
&families, &n_families);
n_faces = 0;
faces = NULL;
for (i = 0; i < n_families; i++)
{
const gchar *name = pango_font_family_get_name (families[i]);
if (!g_ascii_strcasecmp (name, family))
{
priv->font_family = g_object_ref (families[i]);
pango_font_family_list_faces (families[i], &faces, &n_faces);
break;
}
}
g_free (families);
for (i = 0; i < n_faces; i++)
{
PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]);
if (font_description_style_equal (tmp_desc, priv->font_desc))
{
priv->font_face = g_object_ref (faces[i]);
pango_font_description_free (tmp_desc);
break;
}
else
pango_font_description_free (tmp_desc);
}
g_free (faces);
}
static gchar * static gchar *
gtk_font_button_get_preview_text (GtkFontButton *font_button) gtk_font_button_get_preview_text (GtkFontButton *font_button)
{ {
@ -261,16 +347,14 @@ gtk_font_button_take_font_desc (GtkFontButton *font_button,
g_object_freeze_notify (object); g_object_freeze_notify (object);
if (priv->font_desc) clear_font_data (font_button);
pango_font_description_free (priv->font_desc);
if (font_desc) if (font_desc)
priv->font_desc = font_desc; /* adopted */ priv->font_desc = font_desc; /* adopted */
else else
priv->font_desc = pango_font_description_from_string (_("Sans 12")); priv->font_desc = pango_font_description_from_string (_("Sans 12"));
g_free (priv->fontname); gtk_font_button_update_font_data (font_button);
priv->fontname = pango_font_description_to_string (priv->font_desc);
gtk_font_button_update_font_info (font_button); gtk_font_button_update_font_info (font_button);
if (priv->font_dialog) if (priv->font_dialog)
@ -489,29 +573,15 @@ gtk_font_button_finalize (GObject *object)
gtk_widget_destroy (font_button->priv->font_dialog); gtk_widget_destroy (font_button->priv->font_dialog);
font_button->priv->font_dialog = NULL; font_button->priv->font_dialog = NULL;
g_free (font_button->priv->fontname);
font_button->priv->fontname = NULL;
g_free (font_button->priv->title); g_free (font_button->priv->title);
font_button->priv->title = NULL; font_button->priv->title = NULL;
clear_font_data (font_button);
clear_font_filter_data (font_button); clear_font_filter_data (font_button);
g_free (font_button->priv->preview_text); g_free (font_button->priv->preview_text);
font_button->priv->preview_text = NULL; font_button->priv->preview_text = NULL;
if (font_button->priv->font_family)
g_object_unref (font_button->priv->font_family);
font_button->priv->font_family = NULL;
if (font_button->priv->font_face)
g_object_unref (font_button->priv->font_face);
font_button->priv->font_face = NULL;
if (font_button->priv->font_desc)
pango_font_description_free (font_button->priv->font_desc);
font_button->priv->font_desc = NULL;
G_OBJECT_CLASS (gtk_font_button_parent_class)->finalize (object); G_OBJECT_CLASS (gtk_font_button_parent_class)->finalize (object);
} }
@ -1003,25 +1073,17 @@ response_cb (GtkDialog *dialog,
g_object_freeze_notify (object); g_object_freeze_notify (object);
if (priv->font_desc) clear_font_data (font_button);
pango_font_description_free (priv->font_desc);
priv->font_desc = gtk_font_chooser_get_font_desc (font_chooser); priv->font_desc = gtk_font_chooser_get_font_desc (font_chooser);
if (priv->font_desc)
g_free (priv->fontname); priv->fontname = pango_font_description_to_string (priv->font_desc);
priv->fontname = pango_font_description_to_string (priv->font_desc);
if (priv->font_family)
g_object_unref (priv->font_family);
priv->font_family = gtk_font_chooser_get_font_family (font_chooser); priv->font_family = gtk_font_chooser_get_font_family (font_chooser);
if (priv->font_family) if (priv->font_family)
g_object_ref (priv->font_family); g_object_ref (priv->font_family);
if (priv->font_face)
g_object_unref (priv->font_face);
priv->font_face = gtk_font_chooser_get_font_face (font_chooser); priv->font_face = gtk_font_chooser_get_font_face (font_chooser);
if (priv->font_face) if (priv->font_face)
g_object_ref (priv->font_face); g_object_ref (priv->font_face);
priv->font_size = gtk_font_chooser_get_font_size (font_chooser); priv->font_size = gtk_font_chooser_get_font_size (font_chooser);
/* Set label font */ /* Set label font */
@ -1093,93 +1155,37 @@ gtk_font_button_label_use_font (GtkFontButton *font_button)
pango_font_description_free (desc); pango_font_description_free (desc);
} }
static gboolean
font_description_style_equal (const PangoFontDescription *a,
const PangoFontDescription *b)
{
return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) &&
pango_font_description_get_style (a) == pango_font_description_get_style (b) &&
pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) &&
pango_font_description_get_variant (a) == pango_font_description_get_variant (b));
}
static void static void
gtk_font_button_update_font_info (GtkFontButton *font_button) gtk_font_button_update_font_info (GtkFontButton *font_button)
{ {
const PangoFontDescription *desc; GtkFontButtonPrivate *priv = font_button->priv;
const gchar *family;
gchar *style;
gchar *family_style; gchar *family_style;
desc = font_button->priv->font_desc; g_assert (priv->font_desc != NULL);
g_assert (desc != NULL);
family = pango_font_description_get_family (desc); if (priv->show_style &&
priv->font_family != NULL &&
#if 0 priv->font_face != NULL &&
/* This gives the wrong names, e.g. Italic when the font chooser g_ascii_strcasecmp (pango_font_face_get_face_name (priv->font_face), "Regular") != 0)
* dialog displayed Oblique.
*/
pango_font_description_unset_fields (desc, PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_SIZE);
style = pango_font_description_to_string (desc);
gtk_label_set_text (GTK_LABEL (font_button->priv->style_label), style);
#endif
style = NULL;
if (font_button->priv->show_style && family)
{ {
PangoFontFamily **families; family_style = g_strdup_printf ("%s %s",
PangoFontFace **faces; pango_font_family_get_name (priv->font_family),
gint n_families, n_faces, i; pango_font_face_get_face_name (priv->font_face));
n_families = 0;
families = NULL;
pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (font_button)),
&families, &n_families);
n_faces = 0;
faces = NULL;
for (i = 0; i < n_families; i++)
{
const gchar *name = pango_font_family_get_name (families[i]);
if (!g_ascii_strcasecmp (name, family))
{
pango_font_family_list_faces (families[i], &faces, &n_faces);
break;
}
}
g_free (families);
for (i = 0; i < n_faces; i++)
{
PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]);
if (font_description_style_equal (tmp_desc, desc))
{
style = g_strdup (pango_font_face_get_face_name (faces[i]));
pango_font_description_free (tmp_desc);
break;
}
else
pango_font_description_free (tmp_desc);
}
g_free (faces);
} }
else if (priv->font_family != NULL)
if (style == NULL || !g_ascii_strcasecmp (style, "Regular")) family_style = g_strdup (pango_font_family_get_name (priv->font_family));
family_style = g_strdup (family);
else else
family_style = g_strdup_printf ("%s %s", family, style); family_style = g_strdup ("");
gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style); gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style);
g_free (style);
g_free (family_style); g_free (family_style);
if (font_button->priv->show_size) if (font_button->priv->show_size)
{ {
gchar *size = g_strdup_printf ("%g", gchar *size = g_strdup_printf ("%g",
pango_font_description_get_size (desc) / (double)PANGO_SCALE); pango_font_description_get_size (priv->font_desc) / (double)PANGO_SCALE);
gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size); gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size);