gint wrap_width;
gint width_chars;
gint max_width_chars;
- gboolean full_size;
+
gboolean mnemonics_visible;
} GtkLabelPrivate;
PROP_SINGLE_LINE_MODE,
PROP_ANGLE,
PROP_MAX_WIDTH_CHARS,
- PROP_TRACK_VISITED_LINKS,
- PROP_FULL_SIZE
+ PROP_TRACK_VISITED_LINKS
};
+/* When rotating ellipsizable text we want the natural size to request
+ * more to ensure the label wont ever ellipsize in an allocation of full natural size.
+ * */
+#define ROTATION_ELLIPSIZE_PADDING 2
+
static guint signals[LAST_SIGNAL] = { 0 };
static const GdkColor default_link_color = { 0, 0, 0, 0xeeee };
static void gtk_label_clear_select_info (GtkLabel *label);
static void gtk_label_update_cursor (GtkLabel *label);
static void gtk_label_clear_layout (GtkLabel *label);
-static void gtk_label_ensure_layout (GtkLabel *label);
+static void gtk_label_ensure_layout (GtkLabel *label, gboolean guess_wrap_width);
static void gtk_label_invalidate_wrap_width (GtkLabel *label);
static void gtk_label_select_region_index (GtkLabel *label,
gint anchor_index,
static void emit_activate_link (GtkLabel *label,
GtkLabelLink *link);
-static void gtk_label_layout_interface_init (GtkExtendedLayoutIface *iface);
-
-static void gtk_label_get_desired_width (GtkExtendedLayout *layout,
- gint *minimum_size,
- gint *natural_size);
-static void gtk_label_get_desired_height (GtkExtendedLayout *layout,
- gint *minimum_size,
- gint *natural_size);
-static void gtk_label_get_width_for_height (GtkExtendedLayout *layout,
- gint height,
- gint *minimum_width,
- gint *natural_width);
-static void gtk_label_get_height_for_width (GtkExtendedLayout *layout,
- gint width,
- gint *minimum_height,
- gint *natural_height);
+static void gtk_label_extended_layout_init (GtkExtendedLayoutIface *iface);
+static gboolean gtk_label_is_height_for_width (GtkExtendedLayout *layout);
+static void gtk_label_get_desired_width (GtkExtendedLayout *layout,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_label_get_desired_height (GtkExtendedLayout *layout,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_label_get_width_for_height (GtkExtendedLayout *layout,
+ gint height,
+ gint *minimum_width,
+ gint *natural_width);
+static void gtk_label_get_height_for_width (GtkExtendedLayout *layout,
+ gint width,
+ gint *minimum_height,
+ gint *natural_height);
static GQuark quark_angle = 0;
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_label_buildable_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
- gtk_label_layout_interface_init));
+ gtk_label_extended_layout_init));
static void
add_move_binding (GtkBindingSet *binding_set,
/**
* GtkLabel:width-chars:
- *
+ *
* The desired width of the label, in characters. If this property is set to
- * -1, the width will be calculated automatically, otherwise the label will
- * request either 3 characters or the property value, whichever is greater.
- * If the "width-chars" property is set to a positive value, then the
- * #GtkLabel:max-width-chars property is ignored.
+ * -1, the width will be calculated automatically.
+ *
+ * See the section on <link linkend="label-text-layout">text layout</link>
+ * for details of how #GtkLabel:width-chars and #GtkLabel:max-width-chars
+ * determine the width of ellipsized and wrapped labels.
*
* Since: 2.6
**/
* GtkLabel:max-width-chars:
*
* The desired maximum width of the label, in characters. If this property
- * is set to -1, the width will be calculated automatically, otherwise the
- * label will request space for no more than the requested number of
- * characters. If the #GtkLabel:width-chars property is set to a positive
- * value, then the "max-width-chars" property is ignored.
- *
+ * is set to -1, the width will be calculated automatically.
+ *
+ * See the section on <link linkend="label-text-layout">text layout</link>
+ * for details of how #GtkLabel:width-chars and #GtkLabel:max-width-chars
+ * determine the width of ellipsized and wrapped labels.
+ *
* Since: 2.6
**/
g_object_class_install_property (gobject_class,
P_("Whether visited links should be tracked"),
TRUE,
GTK_PARAM_READWRITE));
-
- /**
- * GtkLabel:full-size:
- *
- * Use the entire space the widget got assigned for text wrapping. Overrides
- * any #GtkLabel:width-chars, #GtkLabel:max-width-chars and screen size based
- * constraints. Requires #GtkLabel:angle to be 0°, 90°, 180° or 270°.
- *
- * Since: 2.18
- **/
- g_object_class_install_property (gobject_class,
- PROP_FULL_SIZE,
- g_param_spec_boolean ("full-size",
- P_("Full size"),
- P_("Use the entire size of the widget to wrap text"),
- FALSE,
- GTK_PARAM_READWRITE));
-
/*
* Key bindings
*/
case PROP_TRACK_VISITED_LINKS:
gtk_label_set_track_visited_links (label, g_value_get_boolean (value));
break;
- case PROP_FULL_SIZE:
- gtk_label_set_full_size (label, g_value_get_boolean (value));
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
case PROP_TRACK_VISITED_LINKS:
g_value_set_boolean (value, gtk_label_get_track_visited_links (label));
break;
- case PROP_FULL_SIZE:
- g_value_set_int (value, gtk_label_get_full_size (label));
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-static gint
-get_label_char_width (GtkLabel *label)
+
+static void
+get_label_width (GtkLabel *label,
+ gint *minimum,
+ gint *natural)
{
- GtkLabelPrivate *priv;
- PangoContext *context;
+ GtkWidgetAuxInfo *aux_info;
+ GtkLabelPrivate *priv;
+ PangoLayout *layout;
+ PangoContext *context;
PangoFontMetrics *metrics;
- gint char_width, digit_width, char_pixels, w;
-
- priv = GTK_LABEL_GET_PRIVATE (label);
-
- context = pango_layout_get_context (label->layout);
+ PangoRectangle rect;
+ gint char_width, digit_width, char_pixels, text_width, ellipsize_chars, guess_width;
+
+ priv = GTK_LABEL_GET_PRIVATE (label);
+ aux_info = _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
+
+ layout = pango_layout_copy (label->layout);
+ context = pango_layout_get_context (layout);
metrics = pango_context_get_metrics (context, GTK_WIDGET (label)->style->font_desc,
pango_context_get_language (context));
digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
char_pixels = MAX (char_width, digit_width);
pango_font_metrics_unref (metrics);
-
- if (priv->width_chars < 0)
- {
- PangoRectangle rect;
-
- pango_layout_set_width (label->layout, -1);
- pango_layout_get_extents (label->layout, NULL, &rect);
- w = char_pixels * MAX (priv->max_width_chars, 3);
- w = MIN (rect.width, w);
+ /* Fetch the length of the complete unwrapped text */
+ pango_layout_set_width (layout, -1);
+ pango_layout_get_extents (layout, NULL, &rect);
+ text_width = rect.width;
+
+ /* Fetch the width that was guessed by gtk_label_ensure_layout() */
+ pango_layout_get_extents (label->layout, NULL, &rect);
+ guess_width = rect.width;
+
+ /* enforce minimum width for ellipsized labels at ~3 chars */
+ if (label->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 (label->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 (label->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 (label->ellipsize || label->wrap)
+ {
+ *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 (label->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 (label->ellipsize)
+ *minimum = MIN (text_width, max_width);
+
+ *natural = MAX (*minimum, max_width);
+ }
}
else
{
- /* enforce minimum width for ellipsized labels at ~3 chars */
- w = char_pixels * MAX (priv->width_chars, 3);
+ *minimum = text_width;
+ *natural = *minimum;
}
-
- return w;
+
+ /* if a width-request is set, use that as the requested label width */
+ if ((label->wrap || label->ellipsize || priv->width_chars > 0 || priv->max_width_chars > 0) &&
+ aux_info && aux_info->width > 0)
+ {
+ *minimum = aux_info->width * PANGO_SCALE;
+ *natural = MAX (*natural, *minimum);
+ }
+
+ g_object_unref (layout);
}
static void
if (priv->wrap_width < 0)
{
- if (priv->width_chars > 0 || priv->max_width_chars > 0)
- priv->wrap_width = get_label_char_width (label);
+ if (priv->width_chars > 0)
+ {
+ PangoLayout *layout;
+ PangoContext *context;
+ PangoFontMetrics *metrics;
+ PangoRectangle rect;
+ gint char_width, digit_width, char_pixels, text_width;
+
+ layout = pango_layout_copy (label->layout);
+ context = pango_layout_get_context (layout);
+ metrics = pango_context_get_metrics (context, GTK_WIDGET (label)->style->font_desc,
+ pango_context_get_language (context));
+
+ 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);
+
+ pango_layout_set_width (layout, -1);
+ pango_layout_get_extents (layout, NULL, &rect);
+ g_object_unref (layout);
+
+ text_width = rect.width;
+
+ priv->wrap_width = PANGO_PIXELS (MAX (text_width, char_pixels * priv->width_chars));
+ }
else
{
PangoLayout *layout;
layout = gtk_widget_create_pango_layout (GTK_WIDGET (label),
- "This long string gives a good enough length for any line to have.");
+ "This string is just about long enough.");
pango_layout_get_size (layout, &priv->wrap_width, NULL);
g_object_unref (layout);
}
}
static void
-gtk_label_ensure_layout (GtkLabel *label)
+gtk_label_ensure_layout (GtkLabel *label, gboolean guess_wrap_width)
{
GtkWidget *widget;
PangoRectangle logical_rect;
GtkWidgetAuxInfo *aux_info = _gtk_widget_get_aux_info (widget, FALSE);
gint longest_paragraph;
gint width, height;
+ gint aux_width = 0;
- if (aux_info && aux_info->width > 0)
- pango_layout_set_width (label->layout, aux_info->width * PANGO_SCALE);
- else if (widget->allocation.width > 1)
+ if ((angle == 90 || angle == 270) && aux_info && aux_info->height > 0)
+ aux_width = aux_info->height;
+ else if (aux_info && aux_info->width > 0)
+ aux_width = aux_info->width;
+
+ if (aux_width > 0)
+ pango_layout_set_width (label->layout, aux_width * PANGO_SCALE);
+ else if (guess_wrap_width == FALSE &&
+ widget->allocation.width > 1 && widget->allocation.height > 1)
{
- width = widget->allocation.width - label->misc.xpad * 2;
+ if (angle == 90 || angle == 270)
+ width = widget->allocation.height - label->misc.ypad * 2;
+ else
+ width = widget->allocation.width - label->misc.xpad * 2;
pango_layout_set_wrap (label->layout, label->wrap_mode);
pango_layout_set_width (label->layout, MAX (width, 1) * PANGO_SCALE);
descent = pango_font_metrics_get_descent (metrics);
pango_font_metrics_unref (metrics);
- return PANGO_PIXELS (ascent + descent);
+ return ascent + descent;
}
-
-
static void
-gtk_label_layout_interface_init (GtkExtendedLayoutIface *iface)
+gtk_label_extended_layout_init (GtkExtendedLayoutIface *iface)
{
+ iface->is_height_for_width = gtk_label_is_height_for_width;
iface->get_desired_width = gtk_label_get_desired_width;
- iface->get_desired_height = gtk_label_get_desired_height;
+ iface->get_desired_height = gtk_label_get_desired_height;
iface->get_width_for_height = gtk_label_get_width_for_height;
iface->get_height_for_width = gtk_label_get_height_for_width;
}
+static gboolean
+gtk_label_is_height_for_width (GtkExtendedLayout *layout)
+{
+ GtkLabel *label = GTK_LABEL (layout);
+ gdouble angle = gtk_label_get_angle (label);
+
+ if (angle == 90 || angle == 270)
+ return FALSE;
+
+ return TRUE;
+}
+
+static void
+get_size_for_allocation (GtkLabel *label,
+ GtkOrientation orientation,
+ gint allocation,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ PangoLayout *layout;
+ GtkWidgetAuxInfo *aux_info =
+ _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
+ gint aux_size;
+ gint text_height;
+
+ gtk_label_ensure_layout (label, FALSE);
+ layout = pango_layout_copy (label->layout);
+
+ if (aux_info)
+ {
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ aux_size = aux_info->width;
+ else
+ aux_size = aux_info->height;
+ }
+ else
+ aux_size = 0;
+
+ if (aux_size > 0)
+ pango_layout_set_width (layout, aux_size * PANGO_SCALE);
+ else
+ pango_layout_set_width (layout, allocation * PANGO_SCALE);
+
+ pango_layout_get_pixel_size (layout, NULL, &text_height);
+
+ if (minimum_size)
+ *minimum_size = text_height;
+
+ if (natural_size)
+ *natural_size = text_height;
+
+ g_object_unref (layout);
+}
+
static void
gtk_label_get_desired_size (GtkExtendedLayout *layout,
- GtkOrientation orientation,
+ GtkOrientation orientation,
gint *minimum_size,
gint *natural_size)
{
- GtkLabelPrivate *priv = GTK_LABEL_GET_PRIVATE (layout);
- GtkLabel *label = GTK_LABEL (layout);
+ GtkLabel *label = GTK_LABEL (layout);
PangoRectangle required_rect;
- GtkWidgetAuxInfo *aux_info;
- PangoLayout *natural_layout;
- gint minimum = 0, natural = 0;
+ PangoRectangle natural_rect;
+ gdouble angle;
- /*
- * If word wrapping is on, then the height requisition can depend
- * on:
+ /* "width-chars" Hard-coded minimum width:
+ * - minimum size should be MAX (width-chars, strlen ("..."));
+ * - natural size should be MAX (width-chars, strlen (label->text));
*
- * - Any width set on the widget via gtk_widget_set_size_request().
- * - The padding of the widget (xpad, set by gtk_misc_set_padding)
+ * "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 (label->text))
*
- * Instead of trying to detect changes to these quantities, if we
- * are wrapping, we just rewrap for each size request. Since
- * size requisitions are cached by the GTK+ core, this is not
- * expensive.
*/
+ /* When calculating ->wrap sometimes we need to invent a size; Ideally we should be doing
+ * that stuff here instead of inside gtk_label_ensure_layout() */
if (label->wrap)
gtk_label_clear_layout (label);
+ gtk_label_ensure_layout (label, TRUE);
- gtk_label_ensure_layout (label);
-
- aux_info = _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
+ angle = gtk_label_get_angle (label);
+ /* Start off with the pixel extents of the rendered layout */
pango_layout_get_extents (label->layout, NULL, &required_rect);
required_rect.x = required_rect.y = 0;
-
- if (label->ellipsize || priv->width_chars > 0 || priv->max_width_chars > 0)
- {
- /* backup the Pango layout, as get_label_char_width() scrambles it */
-
- PangoLayout *backup = label->layout;
- label->layout = pango_layout_copy (label->layout);
-
- required_rect.width = get_label_char_width (label);
-
- g_object_unref (label->layout);
- label->layout = backup;
- }
-
- if (label->single_line_mode)
+
+ if (label->single_line_mode || label->wrap)
required_rect.height = get_single_line_height (GTK_WIDGET (label), label->layout);
-
+
+ natural_rect = required_rect;
+
+ /* Calculate text width itself based on GtkLabel property rules */
+ get_label_width (label, &required_rect.width, &natural_rect.width);
+
+ /* Now that we have minimum and natural sizes in pango extents, apply a possible transform */
if (label->have_transform)
{
- PangoContext *context = pango_layout_get_context (label->layout);
- const PangoMatrix *matrix = pango_context_get_matrix (context);
+ PangoLayout *layout = pango_layout_copy (label->layout);
+ PangoContext *context = pango_layout_get_context (label->layout);
+ const PangoMatrix *matrix = pango_context_get_matrix (context);
+
+ pango_layout_set_width (layout, -1);
+ pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
+
+ pango_layout_get_extents (layout, NULL, &natural_rect);
+ g_object_unref (layout);
+
pango_matrix_transform_rectangle (matrix, &required_rect);
+ pango_matrix_transform_rectangle (matrix, &natural_rect);
+
+ /* Bump the natural size in case of ellipsize to ensure pango has
+ * enough space in the angles (note, we could alternatively set the
+ * layout to not ellipsize when we know we have been allocated our
+ * full natural size, or it may be that pango needs a fix here).
+ */
+ if (label->ellipsize && angle != 0 && angle != 90 && angle != 180 && angle != 270 && angle != 360)
+ {
+ /* For some reason we only need this at about 110 degrees, and only
+ * when gaining in height
+ */
+ natural_rect.height += ROTATION_ELLIPSIZE_PADDING * 2 * PANGO_SCALE;
+ natural_rect.width += ROTATION_ELLIPSIZE_PADDING * 2 * PANGO_SCALE;
+ }
}
-
- required_rect.width = PANGO_PIXELS_CEIL (required_rect.width);
+
+ required_rect.width = PANGO_PIXELS_CEIL (required_rect.width);
required_rect.height = PANGO_PIXELS_CEIL (required_rect.height);
-
- /* if a width-request is set, use that as the requested label width */
- if ((label->wrap || label->ellipsize ||
- priv->width_chars > 0 || priv->max_width_chars > 0) &&
- aux_info && aux_info->width > 0)
- required_rect.width = aux_info->width;
+ natural_rect.width = PANGO_PIXELS_CEIL (natural_rect.width);
+ natural_rect.height = PANGO_PIXELS_CEIL (natural_rect.height);
- /* XXX TODO: Ideally for wrapping labels, the width should be one char or the length
- * of the longest word in the text depending on wrap mode.
- */
if (orientation == GTK_ORIENTATION_HORIZONTAL)
- minimum = required_rect.width + label->misc.xpad * 2;
- else
{
- minimum = required_rect.height + label->misc.ypad * 2;
- }
-
-
- natural = minimum;
-
-#if 0
- /* Natural size */
- natural_layout = pango_layout_copy (label->layout);
- pango_layout_set_width (natural_layout, -1);
- pango_layout_set_ellipsize (natural_layout, PANGO_ELLIPSIZE_NONE);
-
- pango_layout_get_extents (natural_layout, NULL, &required_rect);
- required_rect.x = required_rect.y = 0;
+ /* Note, we cant use get_size_for_allocation() when rotating
+ * ellipsized labels.
+ */
+ if (!(label->ellipsize && label->have_transform) &&
+ (angle == 90 || angle == 270))
+ {
+ /* Doing a h4w request on a rotated label here, return the
+ * required width for the minimum height.
+ */
+ get_size_for_allocation (label,
+ GTK_ORIENTATION_VERTICAL,
+ required_rect.height,
+ minimum_size, natural_size);
- if (label->single_line_mode)
- required_rect.height = get_single_line_height (GTK_WIDGET (label), label->layout);
+ }
+ else
+ {
+ /* Normal desired width */
+ *minimum_size = required_rect.width;
+ *natural_size = natural_rect.width;
+ }
- if (label->have_transform)
- {
- PangoContext *context = pango_layout_get_context (natural_layout);
- const PangoMatrix *matrix = pango_context_get_matrix (context);
- pango_matrix_transform_rectangle (matrix, &required_rect);
+ *minimum_size += label->misc.xpad * 2;
+ *natural_size += label->misc.xpad * 2;
}
+ else /* GTK_ORIENTATION_VERTICAL */
+ {
+ /* Note, we cant use get_size_for_allocation() when rotating
+ * ellipsized labels.
+ */
+ if (!(label->ellipsize && label->have_transform) &&
+ (angle == 0 || angle == 180))
+ {
+ /* Doing a w4h request on a label here, return the required
+ * height for the minimum width.
+ */
+ get_size_for_allocation (label,
+ GTK_ORIENTATION_HORIZONTAL,
+ required_rect.width,
+ minimum_size, natural_size);
+ }
+ else
+ {
+ /* A vertically rotated label does w4h, so return the base
+ * desired height (text length)
+ */
+ *minimum_size = required_rect.height;
+ *natural_size = natural_rect.height;
+ }
- required_rect.width = PANGO_PIXELS_CEIL (required_rect.width);
- required_rect.height = PANGO_PIXELS_CEIL (required_rect.height);
+ *minimum_size += label->misc.ypad * 2;
+ *natural_size += label->misc.ypad * 2;
+ }
- if (orientation == GTK_ORIENTATION_HORIZONTAL)
- natural = required_rect.width + label->misc.xpad * 2;
- else
- natural = required_rect.height + label->misc.ypad * 2;
-
- g_object_unref (natural_layout);
-#endif
+ /* Restore real allocated size of layout; sometimes size-requests
+ * are randomly called without a following allocation; for this case
+ * we need to make sure we dont have a mucked up layout because we
+ * went and guessed the wrap-size.
+ */
+ if (label->wrap)
+ gtk_label_clear_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
- if (minimum_size)
- *minimum_size = minimum;
-
- if (natural_size)
- *natural_size = natural;
}
static void
gtk_label_get_desired_width (GtkExtendedLayout *layout,
- gint *minimum_size,
- gint *natural_size)
+ gint *minimum_size,
+ gint *natural_size)
{
- gtk_label_get_desired_size (layout, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size);
+ gtk_label_get_desired_size (layout,
+ GTK_ORIENTATION_HORIZONTAL,
+ minimum_size, natural_size);
}
static void
gtk_label_get_desired_height (GtkExtendedLayout *layout,
- gint *minimum_size,
- gint *natural_size)
+ gint *minimum_size,
+ gint *natural_size)
{
- gtk_label_get_desired_size (layout, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size);
-}
-
-
-static void
-get_size_for_allocation (GtkLabel *label,
- GtkOrientation orientation,
- gint allocation,
- gint *minimum_size,
- gint *natural_size)
-{
- PangoLayout *layout;
- GtkWidgetAuxInfo *aux_info =
- _gtk_widget_get_aux_info (GTK_WIDGET (label), FALSE);
- gint aux_size;
- gint text_height;
-
- if (label->wrap)
- gtk_label_clear_layout (label);
-
- gtk_label_ensure_layout (label);
- layout = pango_layout_copy (label->layout);
-
- if (aux_info)
- {
- if (orientation == GTK_ORIENTATION_HORIZONTAL)
- aux_size = aux_info->width;
- else
- aux_size = aux_info->height;
- }
- else
- aux_size = 0;
-
- if (aux_size > 0)
- pango_layout_set_width (layout, aux_size * PANGO_SCALE);
- else
- pango_layout_set_width (layout, allocation * PANGO_SCALE);
-
- pango_layout_get_pixel_size (layout, NULL, &text_height);
-
- if (minimum_size)
- *minimum_size = text_height;
-
- if (natural_size)
- *natural_size = text_height;
-
- g_object_unref (layout);
+ gtk_label_get_desired_size (layout,
+ GTK_ORIENTATION_VERTICAL,
+ minimum_size, natural_size);
}
static void
GtkLabel *label = GTK_LABEL (layout);
gdouble angle = gtk_label_get_angle (label);
- if (90 == angle || 270 == angle)
- get_size_for_allocation (label, GTK_ORIENTATION_VERTICAL, height, minimum_width, natural_width);
+ if (label->wrap && (angle == 90 || angle == 270))
+ {
+ if (label->wrap)
+ gtk_label_clear_layout (label);
+
+ get_size_for_allocation (label, GTK_ORIENTATION_VERTICAL,
+ MAX (1, height - (label->misc.ypad * 2)),
+ minimum_width, natural_width);
+
+ if (minimum_width)
+ *minimum_width += label->misc.xpad * 2;
+
+ if (natural_width)
+ *natural_width += label->misc.xpad * 2;
+ }
else
GTK_EXTENDED_LAYOUT_GET_IFACE (layout)->get_desired_width (layout, minimum_width, natural_width);
}
GtkLabel *label = GTK_LABEL (layout);
gdouble angle = gtk_label_get_angle (label);
- if (0 == angle || 180 == angle)
- get_size_for_allocation (label, GTK_ORIENTATION_HORIZONTAL, width, minimum_height, natural_height);
+ if (label->wrap && (angle == 0 || angle == 180 || angle == 360))
+ {
+ if (label->wrap)
+ gtk_label_clear_layout (label);
+
+ get_size_for_allocation (label, GTK_ORIENTATION_HORIZONTAL,
+ MAX (1, width - label->misc.xpad * 2),
+ minimum_height, natural_height);
+
+ if (minimum_height)
+ *minimum_height += label->misc.ypad * 2;
+
+ if (natural_height)
+ *natural_height += label->misc.ypad * 2;
+ }
else
GTK_EXTENDED_LAYOUT_GET_IFACE (layout)->get_desired_height (layout, minimum_height, natural_height);
}
GTK_WIDGET_CLASS (gtk_label_parent_class)->size_allocate (widget, allocation);
- /* The layout may have been recently cleared in get_size_for_orientation(), but the
- * width at that point may not be the same as the allocated width
+ /* The layout may have been recently cleared in get_size_for_orientation(),
+ * but the width at that point may not be the same as the allocated width
*/
if (label->wrap)
gtk_label_clear_layout (label);
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
- if (label->ellipsize || GTK_LABEL_GET_PRIVATE (label)->full_size)
+ if (label->ellipsize)
{
if (label->layout)
- {
+ {
PangoRectangle logical;
PangoRectangle bounds;
gint req_width, x, y;
gint req_height;
PangoRectangle logical;
+ gdouble angle;
- misc = GTK_MISC (label);
+ misc = GTK_MISC (label);
widget = GTK_WIDGET (label);
- priv = GTK_LABEL_GET_PRIVATE (label);
+ priv = GTK_LABEL_GET_PRIVATE (label);
+ angle = gtk_label_get_angle (label);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
xalign = misc->xalign;
pango_layout_get_extents (label->layout, NULL, &logical);
+ /* Do the wrap width delimiting before the transform
+ */
+ if (label->wrap || label->ellipsize || priv->width_chars > 0)
+ {
+ int width;
+
+ width = pango_layout_get_width (label->layout);
+
+ if (width != -1)
+ logical.width = MIN (width, logical.width);
+ }
+
if (label->have_transform)
{
PangoContext *context = gtk_widget_get_pango_context (widget);
pango_extents_to_pixels (&logical, NULL);
- if (label->wrap || label->ellipsize || priv->width_chars > 0 || priv->full_size)
- {
- int width;
+ req_width = logical.width;
+ req_height = logical.height;
- width = pango_layout_get_width (label->layout);
-
- req_width = logical.width;
- req_height = logical.height;
-
- if (width != -1)
- req_width = MIN(PANGO_PIXELS (width), req_width);
- req_width += 2 * misc->xpad;
- req_height += 2 * misc->ypad;
- }
- else
- {
- req_width = logical.width;
- req_height = logical.height;
-/* req_width = widget->requisition.width; */
-/* req_height = widget->requisition.height; */
- }
+ req_width += 2 * misc->xpad;
+ req_height += 2 * misc->ypad;
x = floor (widget->allocation.x + (gint)misc->xpad +
xalign * (widget->allocation.width - req_width));
else
x = MIN (x, widget->allocation.x + widget->allocation.width - misc->xpad);
+
+
+
/* bgo#315462 - For single-line labels, *do* align the requisition with
* respect to the allocation, even if we are under-allocated. For multi-line
* labels, always show the top of the text when they are under-allocated. The
g_assert (label->select_info);
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
for (l = pango_layout_get_lines_readonly (label->layout); l; l = l->next)
{
keymap_direction = gdk_keymap_get_direction (gdk_keymap_get_for_display (gtk_widget_get_display (widget)));
cursor_direction = get_cursor_direction (label);
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
pango_layout_get_cursor_pos (label->layout, label->select_info->selection_end,
&strong_pos, &weak_pos);
GtkLabelSelectionInfo *info = label->select_info;
gint x, y;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
if (gtk_widget_get_visible (widget) && gtk_widget_get_mapped (widget) &&
label->text && (*label->text != '\0'))
*index = 0;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
window_to_layout_coords (label, &x, &y);
{
g_return_val_if_fail (GTK_IS_LABEL (label), NULL);
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
return label->layout;
}
{
g_return_if_fail (GTK_IS_LABEL (label));
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
get_layout_location (label, x, y);
}
gtk_label_recalculate (label);
}
-gboolean
-gtk_label_get_full_size (GtkLabel *label)
-{
- g_return_val_if_fail (GTK_IS_LABEL (label), FALSE);
- return GTK_LABEL_GET_PRIVATE (label)->full_size;
-}
-
-void
-gtk_label_set_full_size (GtkLabel *label,
- gboolean setting)
-{
- GtkLabelPrivate *priv;
-
- g_return_if_fail (GTK_IS_LABEL (label));
- priv = GTK_LABEL_GET_PRIVATE (label);
-
- if (priv->full_size != setting)
- {
- priv->full_size = setting;
-
- g_object_notify (G_OBJECT (label), "full-size");
- gtk_label_invalidate_wrap_width (label);
- gtk_widget_queue_resize (GTK_WIDGET (label));
- }
-}
-
/**
* gtk_label_get_use_underline:
* @label: a #GtkLabel
"gtk-split-cursor", &split_cursor,
NULL);
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
pango_layout_get_cursor_pos (label->layout, index,
&strong_pos, &weak_pos);
gint n_attrs;
gint length;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
length = g_utf8_strlen (label->text, -1);
gboolean split_cursor;
gboolean strong;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
"gtk-split-cursor", &split_cursor,
PangoLogAttr *log_attrs;
gint n_attrs;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
PangoLogAttr *log_attrs;
gint n_attrs;
- gtk_label_ensure_layout (label);
+ gtk_label_ensure_layout (label, FALSE);
pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
projects / ~andy / gtk / blobdiff