* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+/**
+ * SECTION:gtkbbox
+ * @Short_description: A container for arranging buttons
+ * @Title: GtkButtonBox
+ *
+ * A button box should be used to provide a consistent layout of buttons
+ * throughout your application. The layout/spacing can be altered by the
+ * programmer, or if desired, by the user to alter the 'feel' of a
+ * program to a small degree.
+ *
+ * gtk_button_box_get_layout() and gtk_button_box_set_layout() retrieve and
+ * alter the method used to spread the buttons in a button box across the
+ * container, respectively.
+ *
+ * The main purpose of GtkButtonBox is to make sure the children have all the
+ * same size. GtkButtonBox gives all children the same size, but it does allow
+ * 'outliers' to keep their own larger size. To force all children to be
+ * strictly the same size without exceptions, you can set the
+ * #GtkButtonBox:homogeneous property to %TRUE.
+ *
+ * To excempt individual children from homogeneous sizing regardless of their
+ * 'outlier' status, you can set the #GtkButtonBox:non-homogeneous child
+ * property.
*/
-#include "gtkbbox.h"
+#include "config.h"
-static void gtk_button_box_class_init (GtkButtonBoxClass *klass);
-static void gtk_button_box_init (GtkButtonBox *box);
+#include "gtkbbox.h"
+#include "gtkboxprivate.h"
+#include "gtkorientable.h"
+#include "gtktypebuiltins.h"
+#include "gtkprivate.h"
+#include "gtksizerequest.h"
-static gint default_child_min_width = 85;
-static gint default_child_min_height = 27;
-static gint default_child_ipad_x = 7;
-static gint default_child_ipad_y = 0;
+#include "gtkintl.h"
-guint
-gtk_button_box_get_type ()
+struct _GtkButtonBoxPrivate
{
- static guint button_box_type = 0;
+ GtkButtonBoxStyle layout_style;
+};
- if (!button_box_type)
- {
- GtkTypeInfo button_box_info =
- {
- "GtkButtonBox",
- sizeof (GtkButtonBox),
- sizeof (GtkButtonBoxClass),
- (GtkClassInitFunc) gtk_button_box_class_init,
- (GtkObjectInitFunc) gtk_button_box_init,
- (GtkArgFunc) NULL,
- };
-
- button_box_type = gtk_type_unique (gtk_box_get_type (), &button_box_info);
- }
+enum {
+ PROP_0,
+ PROP_LAYOUT_STYLE
+};
- return button_box_type;
-}
+enum {
+ CHILD_PROP_0,
+ CHILD_PROP_SECONDARY,
+ CHILD_PROP_NONHOMOGENEOUS
+};
+
+#define GTK_BOX_SECONDARY_CHILD "gtk-box-secondary-child"
+#define GTK_BOX_NON_HOMOGENEOUS "gtk-box-non-homogeneous"
+
+static void gtk_button_box_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_button_box_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_button_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_button_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_button_box_get_preferred_width_for_height (GtkWidget *widget,
+ gint height,
+ gint *minimum,
+ gint *natural);
+static void gtk_button_box_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum,
+ gint *natural);
+
+static void gtk_button_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_button_box_remove (GtkContainer *container,
+ GtkWidget *widget);
+static void gtk_button_box_set_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_button_box_get_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+#define DEFAULT_CHILD_MIN_WIDTH 85
+#define DEFAULT_CHILD_MIN_HEIGHT 27
+#define DEFAULT_CHILD_IPAD_X 4
+#define DEFAULT_CHILD_IPAD_Y 0
+#define DEFAULT_LAYOUT_STYLE GTK_BUTTONBOX_EDGE
+
+G_DEFINE_TYPE (GtkButtonBox, gtk_button_box, GTK_TYPE_BOX)
static void
gtk_button_box_class_init (GtkButtonBoxClass *class)
{
GtkWidgetClass *widget_class;
+ GObjectClass *gobject_class;
+ GtkContainerClass *container_class;
+ gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
+ container_class = (GtkContainerClass*) class;
+
+ gobject_class->set_property = gtk_button_box_set_property;
+ gobject_class->get_property = gtk_button_box_get_property;
+
+ widget_class->get_preferred_width = gtk_button_box_get_preferred_width;
+ widget_class->get_preferred_height = gtk_button_box_get_preferred_height;
+ widget_class->get_preferred_width_for_height = gtk_button_box_get_preferred_width_for_height;
+ widget_class->get_preferred_height_for_width = gtk_button_box_get_preferred_height_for_width;
+ widget_class->size_allocate = gtk_button_box_size_allocate;
+
+ container_class->remove = gtk_button_box_remove;
+ container_class->set_child_property = gtk_button_box_set_child_property;
+ container_class->get_child_property = gtk_button_box_get_child_property;
+ gtk_container_class_handle_border_width (container_class);
+
+ /* FIXME we need to override the "spacing" property on GtkBox once
+ * libgobject allows that.
+ */
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("child-min-width",
+ P_("Minimum child width"),
+ P_("Minimum width of buttons inside the box"),
+ 0,
+ G_MAXINT,
+ DEFAULT_CHILD_MIN_WIDTH,
+ GTK_PARAM_READABLE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("child-min-height",
+ P_("Minimum child height"),
+ P_("Minimum height of buttons inside the box"),
+ 0,
+ G_MAXINT,
+ DEFAULT_CHILD_MIN_HEIGHT,
+ GTK_PARAM_READABLE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("child-internal-pad-x",
+ P_("Child internal width padding"),
+ P_("Amount to increase child's size on either side"),
+ 0,
+ G_MAXINT,
+ DEFAULT_CHILD_IPAD_X,
+ GTK_PARAM_READABLE));
+
+ gtk_widget_class_install_style_property (widget_class,
+ g_param_spec_int ("child-internal-pad-y",
+ P_("Child internal height padding"),
+ P_("Amount to increase child's size on the top and bottom"),
+ 0,
+ G_MAXINT,
+ DEFAULT_CHILD_IPAD_Y,
+ GTK_PARAM_READABLE));
+ g_object_class_install_property (gobject_class,
+ PROP_LAYOUT_STYLE,
+ g_param_spec_enum ("layout-style",
+ P_("Layout style"),
+ P_("How to lay out the buttons in the box. Possible values are: spread, edge, start and end"),
+ GTK_TYPE_BUTTON_BOX_STYLE,
+ DEFAULT_LAYOUT_STYLE,
+ GTK_PARAM_READWRITE));
+
+ gtk_container_class_install_child_property (container_class,
+ CHILD_PROP_SECONDARY,
+ g_param_spec_boolean ("secondary",
+ P_("Secondary"),
+ P_("If TRUE, the child appears in a secondary group of children, suitable for, e.g., help buttons"),
+ FALSE,
+ GTK_PARAM_READWRITE));
+
+ gtk_container_class_install_child_property (container_class,
+ CHILD_PROP_NONHOMOGENEOUS,
+ g_param_spec_boolean ("non-homogeneous",
+ P_("Non-Homogeneous"),
+ P_("If TRUE, the child will not be subject to homogeneous sizing"),
+ FALSE,
+ GTK_PARAM_READWRITE));
+
+ g_type_class_add_private (class, sizeof (GtkButtonBoxPrivate));
}
static void
gtk_button_box_init (GtkButtonBox *button_box)
{
- button_box->spacing = GTK_BUTTONBOX_DEFAULT;
- button_box->child_min_width = GTK_BUTTONBOX_DEFAULT;
- button_box->child_min_height = GTK_BUTTONBOX_DEFAULT;
- button_box->child_ipad_x = GTK_BUTTONBOX_DEFAULT;
- button_box->child_ipad_y = GTK_BUTTONBOX_DEFAULT;
- button_box->layout_style = GTK_BUTTONBOX_DEFAULT;
-}
+ GtkButtonBoxPrivate *priv;
+ button_box->priv = G_TYPE_INSTANCE_GET_PRIVATE (button_box,
+ GTK_TYPE_BUTTON_BOX,
+ GtkButtonBoxPrivate);
+ priv = button_box->priv;
-/* set default values for child size and child internal padding */
-/* default spacing is in defined in subclasses */
-
-void gtk_button_box_set_child_size_default (gint width, gint height)
-{
- default_child_min_width = width;
- default_child_min_height = height;
+ gtk_box_set_spacing (GTK_BOX (button_box), 0);
+ priv->layout_style = DEFAULT_LAYOUT_STYLE;
}
-void gtk_button_box_set_child_ipadding_default (gint ipad_x, gint ipad_y)
+static void
+gtk_button_box_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
{
- default_child_ipad_x = ipad_x;
- default_child_ipad_y = ipad_y;
+ switch (prop_id)
+ {
+ case PROP_LAYOUT_STYLE:
+ gtk_button_box_set_layout (GTK_BUTTON_BOX (object),
+ g_value_get_enum (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
-/* get default values for child size and child internal padding */
-
-void gtk_button_box_get_child_size_default (gint *width, gint *height)
+static void
+gtk_button_box_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
{
- *width = default_child_min_width;
- *height = default_child_min_height;
-}
+ GtkButtonBoxPrivate *priv = GTK_BUTTON_BOX (object)->priv;
-void gtk_button_box_get_child_ipadding_default (gint *ipad_x, gint *ipad_y)
-{
- *ipad_x = default_child_ipad_x;
- *ipad_y = default_child_ipad_y;
+ switch (prop_id)
+ {
+ case PROP_LAYOUT_STYLE:
+ g_value_set_enum (value, priv->layout_style);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
-/* set per widget values for spacing, child size and child internal padding */
-
-void gtk_button_box_set_spacing (GtkButtonBox *widget, gint spacing)
+static void
+gtk_button_box_set_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
{
- widget->spacing = spacing;
+ switch (property_id)
+ {
+ case CHILD_PROP_SECONDARY:
+ gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), child,
+ g_value_get_boolean (value));
+ break;
+ case CHILD_PROP_NONHOMOGENEOUS:
+ gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (container), child,
+ g_value_get_boolean (value));
+ break;
+ default:
+ GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+ break;
+ }
}
-void gtk_button_box_set_child_size (GtkButtonBox *widget, gint width, gint height)
+static void
+gtk_button_box_get_child_property (GtkContainer *container,
+ GtkWidget *child,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
{
- widget->child_min_width = width;
- widget->child_min_height = height;
+ switch (property_id)
+ {
+ case CHILD_PROP_SECONDARY:
+ g_value_set_boolean (value,
+ gtk_button_box_get_child_secondary (GTK_BUTTON_BOX (container),
+ child));
+ break;
+ case CHILD_PROP_NONHOMOGENEOUS:
+ g_value_set_boolean (value,
+ gtk_button_box_get_child_non_homogeneous (GTK_BUTTON_BOX (container),
+ child));
+ break;
+ default:
+ GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+ break;
+ }
}
-void gtk_button_box_set_child_ipadding (GtkButtonBox *widget,
- gint ipad_x, gint ipad_y)
+static void
+gtk_button_box_remove (GtkContainer *container,
+ GtkWidget *widget)
{
- widget->child_ipad_x = ipad_x;
- widget->child_ipad_y = ipad_y;
+ /* clear is_secondary and nonhomogeneous flag in case the widget
+ * is added to another container
+ */
+ gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (container), widget, FALSE);
+ gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (container), widget, FALSE);
+
+ GTK_CONTAINER_CLASS (gtk_button_box_parent_class)->remove (container, widget);
}
-void gtk_button_box_set_layout (GtkButtonBox *widget, gint layout_style)
+/**
+ * gtk_button_box_set_layout:
+ * @widget: a #GtkButtonBox
+ * @layout_style: the new layout style
+ *
+ * Changes the way buttons are arranged in their container.
+ */
+void
+gtk_button_box_set_layout (GtkButtonBox *widget,
+ GtkButtonBoxStyle layout_style)
{
- widget->layout_style = layout_style;
-}
+ GtkButtonBoxPrivate *priv;
+ g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
-/* get per widget values for spacing, child size and child internal padding */
+ priv = widget->priv;
-gint gtk_button_box_get_spacing (GtkButtonBox *widget)
-{
- return widget->spacing;
+ if (priv->layout_style != layout_style)
+ {
+ priv->layout_style = layout_style;
+ g_object_notify (G_OBJECT (widget), "layout-style");
+ gtk_widget_queue_resize (GTK_WIDGET (widget));
+ }
}
-void gtk_button_box_get_child_size (GtkButtonBox *widget,
- gint *width, gint *height)
+/**
+ * gtk_button_box_get_layout:
+ * @widget: a #GtkButtonBox
+ *
+ * Retrieves the method being used to arrange the buttons in a button box.
+ *
+ * Returns: the method used to lay out buttons in @widget.
+ */
+GtkButtonBoxStyle
+gtk_button_box_get_layout (GtkButtonBox *widget)
{
- *width = widget->child_min_width;
- *height = widget->child_min_height;
+ g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), DEFAULT_LAYOUT_STYLE);
+
+ return widget->priv->layout_style;
}
-void gtk_button_box_get_child_ipadding (GtkButtonBox *widget,
- gint* ipad_x, gint *ipad_y)
+/**
+ * gtk_button_box_get_child_secondary:
+ * @widget: a #GtkButtonBox
+ * @child: a child of @widget
+ *
+ * Returns whether @child should appear in a secondary group of children.
+ *
+ * Return value: whether @child should appear in a secondary group of children.
+ *
+ * Since: 2.4
+ **/
+gboolean
+gtk_button_box_get_child_secondary (GtkButtonBox *widget,
+ GtkWidget *child)
{
- *ipad_x = widget->child_ipad_x;
- *ipad_y = widget->child_ipad_y;
+ g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
+ g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
+
+ return (g_object_get_data (G_OBJECT (child), GTK_BOX_SECONDARY_CHILD) != NULL);
}
-gint gtk_button_box_get_layout (GtkButtonBox *widget)
+/**
+ * gtk_button_box_set_child_secondary:
+ * @widget: a #GtkButtonBox
+ * @child: a child of @widget
+ * @is_secondary: if %TRUE, the @child appears in a secondary group of the
+ * button box.
+ *
+ * Sets whether @child should appear in a secondary group of children.
+ * A typical use of a secondary child is the help button in a dialog.
+ *
+ * This group appears after the other children if the style
+ * is %GTK_BUTTONBOX_START, %GTK_BUTTONBOX_SPREAD or
+ * %GTK_BUTTONBOX_EDGE, and before the other children if the style
+ * is %GTK_BUTTONBOX_END. For horizontal button boxes, the definition
+ * of before/after depends on direction of the widget (see
+ * gtk_widget_set_direction()). If the style is %GTK_BUTTONBOX_START
+ * or %GTK_BUTTONBOX_END, then the secondary children are aligned at
+ * the other end of the button box from the main children. For the
+ * other styles, they appear immediately next to the main children.
+ **/
+void
+gtk_button_box_set_child_secondary (GtkButtonBox *widget,
+ GtkWidget *child,
+ gboolean is_secondary)
{
- return widget->layout_style;
-}
+ g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (widget));
+ g_object_set_data (G_OBJECT (child),
+ GTK_BOX_SECONDARY_CHILD,
+ is_secondary ? GINT_TO_POINTER (1) : NULL);
+ gtk_widget_child_notify (child, "secondary");
+ if (gtk_widget_get_visible (GTK_WIDGET (widget)) &&
+ gtk_widget_get_visible (child))
+ gtk_widget_queue_resize (child);
+}
-/* Ask children how much space they require and round up
- to match minimum size and internal padding.
- Returns the size each single child should have. */
-void
-gtk_button_box_child_requisition (GtkWidget *widget,
- int *nvis_children,
- int *width,
- int *height)
+/* Ask children how much space they require and round up
+ * to match minimum size and internal padding.
+ * Returns the size each single child should have.
+ */
+static void
+gtk_button_box_child_requisition (GtkWidget *widget,
+ gint *nvis_children,
+ gint *nvis_secondaries,
+ gint **widths,
+ gint **heights)
{
GtkButtonBox *bbox;
- GtkBoxChild *child;
- GList *children;
+ GList *children, *list;
gint nchildren;
+ gint nsecondaries;
gint needed_width;
gint needed_height;
+ gint avg_w, avg_h;
GtkRequisition child_requisition;
gint ipad_w;
gint ipad_h;
- gint width_default;
- gint height_default;
- gint ipad_x_default;
- gint ipad_y_default;
-
gint child_min_width;
gint child_min_height;
gint ipad_x;
gint ipad_y;
-
- g_return_if_fail (widget != NULL);
+ gboolean homogeneous;
+ gint i;
+
g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
bbox = GTK_BUTTON_BOX (widget);
- gtk_button_box_get_child_size_default (&width_default, &height_default);
- gtk_button_box_get_child_ipadding_default (&ipad_x_default, &ipad_y_default);
-
- child_min_width = bbox->child_min_width != GTK_BUTTONBOX_DEFAULT
- ? bbox->child_min_width : width_default;
- child_min_height = bbox->child_min_height !=GTK_BUTTONBOX_DEFAULT
- ? bbox->child_min_height : height_default;
- ipad_x = bbox->child_ipad_x != GTK_BUTTONBOX_DEFAULT
- ? bbox->child_ipad_x : ipad_x_default;
- ipad_y = bbox->child_ipad_y != GTK_BUTTONBOX_DEFAULT
- ? bbox->child_ipad_y : ipad_y_default;
+ homogeneous = gtk_box_get_homogeneous (GTK_BOX (widget));
+
+ gtk_widget_style_get (widget,
+ "child-min-width", &child_min_width,
+ "child-min-height", &child_min_height,
+ "child-internal-pad-x", &ipad_x,
+ "child-internal-pad-y", &ipad_y,
+ NULL);
nchildren = 0;
- children = GTK_BOX(bbox)->children;
+ nsecondaries = 0;
+ list = children = _gtk_box_get_children (GTK_BOX (bbox));
needed_width = child_min_width;
- needed_height = child_min_height;
+ needed_height = child_min_height;
ipad_w = ipad_x * 2;
ipad_h = ipad_y * 2;
-
+
+ avg_w = avg_h = 0;
+ while (children)
+ {
+ GtkWidget *child;
+
+ child = children->data;
+ children = children->next;
+
+ if (gtk_widget_get_visible (child))
+ {
+ nchildren += 1;
+ gtk_widget_get_preferred_size (child,
+ &child_requisition, NULL);
+ avg_w += child_requisition.width + ipad_w;
+ avg_h += child_requisition.height + ipad_h;
+ }
+ }
+ avg_w /= MAX (nchildren, 1);
+ avg_h /= MAX (nchildren, 1);
+
+ *widths = g_new (gint, nchildren);
+ *heights = g_new (gint, nchildren);
+
+ i = 0;
+ children = list;
while (children)
{
+ GtkWidget *child;
+ gboolean is_secondary;
+ gboolean non_homogeneous;
+
child = children->data;
children = children->next;
- if (GTK_WIDGET_VISIBLE (child->widget))
- {
- nchildren += 1;
- gtk_widget_size_request (child->widget, &child_requisition);
- if (child_requisition.width + ipad_w > needed_width)
- needed_width = child_requisition.width + ipad_w;
- if (child_requisition.height + ipad_h > needed_height)
- needed_height = child_requisition.height + ipad_h;
- }
+ if (gtk_widget_get_visible (child))
+ {
+ is_secondary = gtk_button_box_get_child_secondary (bbox, child);
+ non_homogeneous = gtk_button_box_get_child_non_homogeneous (bbox, child);
+
+ if (is_secondary)
+ nsecondaries++;
+
+ gtk_widget_get_preferred_size (child, &child_requisition, NULL);
+
+ if (homogeneous ||
+ (!non_homogeneous && (child_requisition.width + ipad_w < avg_w * 1.5)))
+ {
+ (*widths)[i] = -1;
+ if (child_requisition.width + ipad_w > needed_width)
+ needed_width = child_requisition.width + ipad_w;
+ }
+ else
+ {
+ (*widths)[i] = child_requisition.width + ipad_w;
+ }
+
+ if (homogeneous ||
+ (!non_homogeneous && (child_requisition.height + ipad_h < avg_h * 1.5)))
+ {
+ (*heights)[i] = -1;
+ if (child_requisition.height + ipad_h > needed_height)
+ needed_height = child_requisition.height + ipad_h;
+ }
+ else
+ {
+ (*heights)[i] = child_requisition.height + ipad_h;
+ }
+
+ i++;
+ }
}
-
- *nvis_children = nchildren;
- *width = needed_width;
- *height = needed_height;
+
+ g_list_free (list);
+
+ for (i = 0; i < nchildren; i++)
+ {
+ if ((*widths)[i] == -1)
+ (*widths)[i] = needed_width;
+ if ((*heights)[i] == -1)
+ (*heights)[i] = needed_height;
+ }
+
+ if (nvis_children)
+ *nvis_children = nchildren;
+
+ if (nvis_secondaries)
+ *nvis_secondaries = nsecondaries;
+}
+
+static void
+gtk_button_box_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ GtkButtonBoxPrivate *priv;
+ GtkButtonBox *bbox;
+ gint nvis_children;
+ gint max_size;
+ gint total_size;
+ gint spacing;
+ GtkOrientation orientation;
+ gint *widths;
+ gint *heights;
+ gint i;
+
+ bbox = GTK_BUTTON_BOX (widget);
+ priv = bbox->priv;
+
+ orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
+ spacing = gtk_box_get_spacing (GTK_BOX (widget));
+
+ gtk_button_box_child_requisition (widget,
+ &nvis_children,
+ NULL,
+ &widths, &heights);
+
+ max_size = 0;
+ total_size = 0;
+ for (i = 0; i < nvis_children; i++)
+ {
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ total_size += widths[i];
+ max_size = MAX (max_size, heights[i]);
+ }
+ else
+ {
+ total_size += heights[i];
+ max_size = MAX (max_size, widths[i]);
+ }
+ }
+ g_free (widths);
+ g_free (heights);
+
+ if (nvis_children == 0)
+ {
+ requisition->width = 0;
+ requisition->height = 0;
+ }
+ else
+ {
+ switch (priv->layout_style)
+ {
+ case GTK_BUTTONBOX_SPREAD:
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ requisition->width = total_size + ((nvis_children + 1)*spacing);
+ else
+ requisition->height = total_size + ((nvis_children + 1)*spacing);
+
+ break;
+ case GTK_BUTTONBOX_EDGE:
+ case GTK_BUTTONBOX_START:
+ case GTK_BUTTONBOX_END:
+ case GTK_BUTTONBOX_CENTER:
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ requisition->width = total_size + ((nvis_children - 1)*spacing);
+ else
+ requisition->height = total_size + ((nvis_children - 1)*spacing);
+
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ requisition->height = max_size;
+ else
+ requisition->width = max_size;
+ }
+}
+
+static void
+gtk_button_box_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ GtkRequisition requisition;
+
+ gtk_button_box_size_request (widget, &requisition);
+
+ *minimum = *natural = requisition.width;
+}
+
+static void
+gtk_button_box_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ GtkRequisition requisition;
+
+ gtk_button_box_size_request (widget, &requisition);
+
+ *minimum = *natural = requisition.height;
+}
+
+static void
+gtk_button_box_get_preferred_width_for_height (GtkWidget *widget,
+ gint height,
+ gint *minimum,
+ gint *natural)
+{
+ gtk_button_box_get_preferred_width (widget, minimum, natural);
+}
+
+static void
+gtk_button_box_get_preferred_height_for_width (GtkWidget *widget,
+ gint width,
+ gint *minimum,
+ gint *natural)
+{
+ gtk_button_box_get_preferred_height (widget, minimum, natural);
+}
+
+static void
+gtk_button_box_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkButtonBoxPrivate *priv;
+ GtkButtonBox *bbox;
+ GList *children, *list;
+ GtkAllocation child_allocation;
+ gint nvis_children;
+ gint n_primaries;
+ gint n_secondaries;
+ gint x = 0;
+ gint y = 0;
+ gint secondary_x = 0;
+ gint secondary_y = 0;
+ gint width = 0;
+ gint height = 0;
+ gint childspacing = 0;
+ gint spacing;
+ GtkOrientation orientation;
+ gint ipad_x, ipad_y;
+ gint *widths;
+ gint *heights;
+ gint *sizes;
+ gint primary_size;
+ gint secondary_size;
+ gint total_size;
+ gint i;
+
+ bbox = GTK_BUTTON_BOX (widget);
+ priv = bbox->priv;
+
+ orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (widget));
+ spacing = gtk_box_get_spacing (GTK_BOX (widget));
+
+ gtk_widget_style_get (widget,
+ "child-internal-pad-x", &ipad_x,
+ "child-internal-pad-y", &ipad_y,
+ NULL);
+ gtk_button_box_child_requisition (widget,
+ &nvis_children,
+ &n_secondaries,
+ &widths, &heights);
+
+ n_primaries = nvis_children - n_secondaries;
+ primary_size = 0;
+ secondary_size = 0;
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ sizes = widths;
+ else
+ sizes = heights;
+
+ i = 0;
+ list = children = _gtk_box_get_children (GTK_BOX (widget));
+ while (children)
+ {
+ GtkWidget *child;
+
+ child = children->data;
+ children = children->next;
+
+ if (gtk_widget_get_visible (child))
+ {
+ if (gtk_button_box_get_child_secondary (bbox, child))
+ secondary_size += sizes[i];
+ else
+ primary_size += sizes[i];
+ i++;
+ }
+ }
+ total_size = primary_size + secondary_size;
+
+ gtk_widget_set_allocation (widget, allocation);
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ width = allocation->width;
+ else
+ height = allocation->height;
+
+ switch (priv->layout_style)
+ {
+ case GTK_BUTTONBOX_SPREAD:
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ childspacing = (width - total_size) / (nvis_children + 1);
+ x = allocation->x + childspacing;
+ secondary_x = x + primary_size + n_primaries * childspacing;
+ }
+ else
+ {
+ childspacing = (height - total_size) / (nvis_children + 1);
+ y = allocation->y + childspacing;
+ secondary_y = y + primary_size + n_primaries * childspacing;
+ }
+
+ break;
+
+ case GTK_BUTTONBOX_EDGE:
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ if (nvis_children >= 2)
+ {
+ childspacing = (width - total_size) / (nvis_children - 1);
+ x = allocation->x;
+ secondary_x = x + primary_size + n_primaries * childspacing;
+ }
+ else if (nvis_children == 1)
+ {
+ /* one child, just center */
+ childspacing = width;
+ x = secondary_x = allocation->x
+ + (allocation->width - widths[0]) / 2;
+ }
+ else
+ {
+ /* zero children, meh */
+ childspacing = width;
+ x = secondary_x = allocation->x + allocation->width / 2;
+ }
+ }
+ else
+ {
+ if (nvis_children >= 2)
+ {
+ childspacing = (height - total_size) / (nvis_children - 1);
+ y = allocation->y;
+ secondary_y = y + primary_size + n_primaries * childspacing;
+ }
+ else if (nvis_children == 1)
+ {
+ /* one child, just center */
+ childspacing = height;
+ y = secondary_y = allocation->y
+ + (allocation->height - heights[0]) / 2;
+ }
+ else
+ {
+ /* zero children, meh */
+ childspacing = height;
+ y = secondary_y = allocation->y + allocation->height / 2;
+ }
+ }
+
+ break;
+
+ case GTK_BUTTONBOX_START:
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ childspacing = spacing;
+ x = allocation->x;
+ secondary_x = allocation->x + allocation->width
+ - secondary_size - spacing * (n_secondaries - 1);
+ }
+ else
+ {
+ childspacing = spacing;
+ y = allocation->y;
+ secondary_y = allocation->y + allocation->height
+ - secondary_size - spacing * (n_secondaries - 1);
+ }
+
+ break;
+
+ case GTK_BUTTONBOX_END:
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ childspacing = spacing;
+ x = allocation->x + allocation->width
+ - primary_size - spacing * (n_primaries - 1);
+ secondary_x = allocation->x;
+ }
+ else
+ {
+ childspacing = spacing;
+ y = allocation->y + allocation->height
+ - primary_size - spacing * (n_primaries - 1);
+ secondary_y = allocation->y;
+ }
+
+ break;
+
+ case GTK_BUTTONBOX_CENTER:
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ childspacing = spacing;
+ x = allocation->x +
+ (allocation->width
+ - (primary_size + spacing * (n_primaries - 1))) / 2
+ + (secondary_size + n_secondaries * spacing) / 2;
+ secondary_x = allocation->x;
+ }
+ else
+ {
+ childspacing = spacing;
+ y = allocation->y +
+ (allocation->height
+ - (primary_size + spacing * (n_primaries - 1))) / 2
+ + (secondary_size + n_secondaries * spacing) / 2;
+ secondary_y = allocation->y;
+ }
+
+ break;
+
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ children = list;
+ i = 0;
+ while (children)
+ {
+ GtkWidget *child;
+
+ child = children->data;
+ children = children->next;
+
+ if (gtk_widget_get_visible (child))
+ {
+ child_allocation.width = widths[i];
+ child_allocation.height = heights[i];
+
+ if (orientation == GTK_ORIENTATION_HORIZONTAL)
+ {
+ child_allocation.y = allocation->y + (allocation->height - child_allocation.height) / 2;
+
+ if (gtk_button_box_get_child_secondary (bbox, child))
+ {
+ child_allocation.x = secondary_x;
+ secondary_x += child_allocation.width + childspacing;
+ }
+ else
+ {
+ child_allocation.x = x;
+ x += child_allocation.width + childspacing;
+ }
+
+ if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
+ child_allocation.x = (allocation->x + allocation->width)
+ - (child_allocation.x + child_allocation.width - allocation->x);
+ }
+ else
+ {
+ child_allocation.x = allocation->x + (allocation->width - child_allocation.width) / 2;
+
+ if (gtk_button_box_get_child_secondary (bbox, child))
+ {
+ child_allocation.y = secondary_y;
+ secondary_y += child_allocation.height + childspacing;
+ }
+ else
+ {
+ child_allocation.y = y;
+ y += child_allocation.height + childspacing;
+ }
+ }
+
+ gtk_widget_size_allocate (child, &child_allocation);
+ i++;
+ }
+ }
+
+ g_list_free (list);
+ g_free (widths);
+ g_free (heights);
+}
+
+/**
+ * gtk_button_box_new:
+ * @orientation: the box' orientation.
+ *
+ * Creates a new #GtkButtonBox.
+ *
+ * Return value: a new #GtkButtonBox.
+ *
+ * Since: 3.0
+ */
+GtkWidget *
+gtk_button_box_new (GtkOrientation orientation)
+{
+ return g_object_new (GTK_TYPE_BUTTON_BOX,
+ "orientation", orientation,
+ NULL);
+}
+
+/**
+ * gtk_button_box_get_child_non_homogeneous:
+ * @widget: a #GtkButtonBox
+ * @child: a child of @widget
+ *
+ * Returns whether the child is exempted from homogenous
+ * sizing.
+ *
+ * Returns: %TRUE if the child is not subject to homogenous sizing
+ *
+ * Since: 3.2
+ */
+gboolean
+gtk_button_box_get_child_non_homogeneous (GtkButtonBox *widget,
+ GtkWidget *child)
+{
+ g_return_val_if_fail (GTK_IS_BUTTON_BOX (widget), FALSE);
+ g_return_val_if_fail (GTK_IS_WIDGET (child), FALSE);
+
+ return (g_object_get_data (G_OBJECT (child), GTK_BOX_NON_HOMOGENEOUS) != NULL);
+}
+
+/**
+ * gtk_button_box_set_child_non_homogeneous:
+ * @widget: a #GtkButtonBox
+ * @child: a child of @widget
+ * @non_homogeneous: the new value
+ *
+ * Sets whether the child is exempted from homogeous sizing.
+ *
+ * Since: 3.2
+ */
+void
+gtk_button_box_set_child_non_homogeneous (GtkButtonBox *widget,
+ GtkWidget *child,
+ gboolean non_homogeneous)
+{
+ g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
+ g_return_if_fail (GTK_IS_WIDGET (child));
+ g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (widget));
+
+ g_object_set_data (G_OBJECT (child),
+ GTK_BOX_NON_HOMOGENEOUS,
+ non_homogeneous ? GINT_TO_POINTER (1) : NULL);
+ gtk_widget_child_notify (child, "non-homogeneous");
+
+ if (gtk_widget_get_visible (GTK_WIDGET (widget)) &&
+ gtk_widget_get_visible (child))
+ gtk_widget_queue_resize (child);
}
projects / ~andy / gtk / blobdiff