return copy;
}
-static void
-get_label_width (GtkLabel *label,
- PangoLayout *guess_layout,
- gint *minimum,
- gint *natural)
-{
- GtkLabelPrivate *priv;
- PangoLayout *layout;
- PangoRectangle rect;
- gint text_width, ellipsize_chars, guess_width;
-
- priv = label->priv;
-
- layout = gtk_label_get_measuring_layout (label, NULL, -1);
-
- /* Fetch the length of the complete unwrapped text */
- pango_layout_get_extents (layout, NULL, &rect);
- text_width = rect.width;
-
- /* Fetch the width that was guessed */
- pango_layout_get_extents (guess_layout, NULL, &rect);
- guess_width = rect.width;
-
- /* enforce minimum width for ellipsized labels at ~3 chars */
- if (priv->ellipsize)
- ellipsize_chars = 3;
- else
- ellipsize_chars = 0;
-
- /* "width-chars" Hard-coded minimum width:
- * - minimum size should be MAX (width-chars, strlen ("..."));
- * - natural size should be MAX (width-chars, strlen (priv->text));
- *
- * "max-width-chars" User specified maximum size requisition
- * - minimum size should be MAX (width-chars, 0)
- * - natural size should be MIN (max-width-chars, strlen (priv->text))
- *
- * For ellipsizing labels; if max-width-chars is specified: either it is used as
- * a minimum size or the label text as a minimum size (natural size still overflows).
- *
- * For wrapping labels; A reasonable minimum size is useful to naturally layout
- * interfaces automatically. In this case if no "width-chars" is specified, the minimum
- * width will default to the wrap guess that gtk_label_ensure_layout() does.
- *
- * In *any* case the minimum width is completely overridden if an explicit width
- * request was provided.
- */
-
- if (priv->ellipsize || priv->wrap)
- {
- PangoContext *context;
- PangoFontMetrics *metrics;
- gint char_width, digit_width, char_pixels;
-
- context = pango_layout_get_context (layout);
- metrics = get_font_metrics (context, GTK_WIDGET (label));
- char_width = pango_font_metrics_get_approximate_char_width (metrics);
- digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
- char_pixels = MAX (char_width, digit_width);
- pango_font_metrics_unref (metrics);
-
- *minimum = char_pixels * MAX (priv->width_chars, ellipsize_chars);
-
- /* Default to the minimum width regularly guessed by GTK+ if no minimum
- * width was specified, only allow unwrapping of these labels.
- *
- * Note that when specifying a small width_chars for a long text;
- * an accordingly large size will be required for the label height.
- */
- if (priv->wrap && priv->width_chars <= 0)
- *minimum = guess_width;
-
- if (priv->max_width_chars < 0)
- {
- *natural = MAX (*minimum, text_width);
- }
- else
- {
- gint max_char_width = char_pixels * priv->max_width_chars;
- gint max_width = MIN (text_width, max_char_width);
-
- /* With max-char-width specified, we let the minimum widths of
- * ellipsized text crawl up to the max-char-width
- * (note that we dont want to limit the minimum width for wrapping text).
- */
- if (priv->ellipsize)
- *minimum = MIN (text_width, max_width);
-
- *natural = MAX (*minimum, max_width);
- }
- }
- else
- {
- *minimum = text_width;
- *natural = *minimum;
- }
-
- /* if a width-request is set, use that as the requested label width */
- if (priv->wrap || priv->ellipsize || priv->width_chars > 0 || priv->max_width_chars > 0)
- {
- GtkWidgetAuxInfo *aux_info;
-
- aux_info = _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
- if (aux_info && aux_info->width > 0)
- {
- *minimum = aux_info->width * PANGO_SCALE;
- *natural = MAX (*natural, *minimum);
- }
- }
-
- g_object_unref (layout);
-}
-
static void
gtk_label_invalidate_wrap_width (GtkLabel *label)
{
g_object_unref (layout);
}
+static void
+get_label_width (GtkLabel *label,
+ PangoLayout *guess_layout,
+ gint *minimum,
+ gint *natural)
+{
+ GtkLabelPrivate *priv;
+ PangoLayout *layout;
+ PangoRectangle rect;
+ gint text_width, ellipsize_chars, guess_width;
+
+ priv = label->priv;
+
+ layout = gtk_label_get_measuring_layout (label, NULL, -1);
+
+ /* Fetch the length of the complete unwrapped text */
+ pango_layout_get_extents (layout, NULL, &rect);
+ text_width = rect.width;
+
+ /* Fetch the width that was guessed */
+ pango_layout_get_extents (guess_layout, NULL, &rect);
+ guess_width = rect.width;
+
+ /* enforce minimum width for ellipsized labels at ~3 chars */
+ if (priv->ellipsize)
+ ellipsize_chars = 3;
+ else
+ ellipsize_chars = 0;
+
+ /* "width-chars" Hard-coded minimum width:
+ * - minimum size should be MAX (width-chars, strlen ("..."));
+ * - natural size should be MAX (width-chars, strlen (priv->text));
+ *
+ * "max-width-chars" User specified maximum size requisition
+ * - minimum size should be MAX (width-chars, 0)
+ * - natural size should be MIN (max-width-chars, strlen (priv->text))
+ *
+ * For ellipsizing labels; if max-width-chars is specified: either it is used as
+ * a minimum size or the label text as a minimum size (natural size still overflows).
+ *
+ * For wrapping labels; A reasonable minimum size is useful to naturally layout
+ * interfaces automatically. In this case if no "width-chars" is specified, the minimum
+ * width will default to the wrap guess that gtk_label_ensure_layout() does.
+ *
+ * In *any* case the minimum width is completely overridden if an explicit width
+ * request was provided.
+ */
+
+ if (priv->ellipsize || priv->wrap)
+ {
+ PangoContext *context;
+ PangoFontMetrics *metrics;
+ gint char_width, digit_width, char_pixels;
+
+ context = pango_layout_get_context (layout);
+ metrics = get_font_metrics (context, GTK_WIDGET (label));
+ char_width = pango_font_metrics_get_approximate_char_width (metrics);
+ digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
+ char_pixels = MAX (char_width, digit_width);
+ pango_font_metrics_unref (metrics);
+
+ *minimum = char_pixels * MAX (priv->width_chars, ellipsize_chars);
+
+ /* Default to the minimum width regularly guessed by GTK+ if no minimum
+ * width was specified, only allow unwrapping of these labels.
+ *
+ * Note that when specifying a small width_chars for a long text;
+ * an accordingly large size will be required for the label height.
+ */
+ if (priv->wrap && priv->width_chars <= 0)
+ *minimum = guess_width;
+
+ if (priv->max_width_chars < 0)
+ {
+ *natural = MAX (*minimum, text_width);
+ }
+ else
+ {
+ gint max_char_width = char_pixels * priv->max_width_chars;
+ gint max_width = MIN (text_width, max_char_width);
+
+ /* With max-char-width specified, we let the minimum widths of
+ * ellipsized text crawl up to the max-char-width
+ * (note that we dont want to limit the minimum width for wrapping text).
+ */
+ if (priv->ellipsize)
+ *minimum = MIN (text_width, max_width);
+
+ *natural = MAX (*minimum, max_width);
+ }
+ }
+ else
+ {
+ *minimum = text_width;
+ *natural = *minimum;
+ }
+
+ /* if a width-request is set, use that as the requested label width */
+ if (priv->wrap || priv->ellipsize || priv->width_chars > 0 || priv->max_width_chars > 0)
+ {
+ GtkWidgetAuxInfo *aux_info;
+
+ aux_info = _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
+ if (aux_info && aux_info->width > 0)
+ {
+ *minimum = aux_info->width * PANGO_SCALE;
+ *natural = MAX (*natural, *minimum);
+ }
+ }
+
+ g_object_unref (layout);
+}
+
static void
gtk_label_get_preferred_size (GtkWidget *widget,
GtkOrientation orientation,
projects / ~andy / gtk / commitdiff