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gtk2/gtk/gtkframe.c
Cosimo Cecchi 4626edb889 frame: make sure to allocate the CSS border width 
Similar to GtkNotebook, GtkFrame was only allocating space for the
padding width, and not the border.

This could be seen by just running tests/testframe. With a theme that
renders frame borders, setting xthickness = 0 in the test draws the
button border over the frame border, which is wrong.

https://bugzilla.gnome.org/show_bug.cgi?id=664342
2011-11-20 16:03:31 -05:00

1001 lines
30 KiB
C
Raw Blame History

/* GTK - The GIMP Toolkit
* 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 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* 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/.
*/
#include "config.h"
#include <string.h>
#include "gtkframe.h"
#include "gtklabel.h"
#include "gtkprivate.h"
#include "gtktypebuiltins.h"
#include "gtkintl.h"
#include "gtkbuildable.h"
#include "a11y/gtkframeaccessible.h"
/**
* SECTION:gtkframe
* @Short_description: A bin with a decorative frame and optional label
* @Title: GtkFrame
*
* The frame widget is a Bin that surrounds its child
* with a decorative frame and an optional label.
* If present, the label is drawn in a gap in the
* top side of the frame. The position of the
* label can be controlled with gtk_frame_set_label_align().
*
* <refsect2 id="GtkFrame-BUILDER-UI">
* <title>GtkFrame as GtkBuildable</title>
* <para>
* The GtkFrame implementation of the GtkBuildable interface
* supports placing a child in the label position by specifying
* "label" as the "type" attribute of a &lt;child&gt; element.
* A normal content child can be specified without specifying
* a &lt;child&gt; type attribute.
* </para>
* <example>
* <title>A UI definition fragment with GtkFrame</title>
* <programlisting><![CDATA[
* <object class="GtkFrame">
* <child type="label">
* <object class="GtkLabel" id="frame-label"/>
* </child>
* <child>
* <object class="GtkEntry" id="frame-content"/>
* </child>
* </object>
* ]]></programlisting>
* </example>
* </refsect2>
*/
#define LABEL_PAD 1
#define LABEL_SIDE_PAD 2
struct _GtkFramePrivate
{
/* Properties */
GtkWidget *label_widget;
gint16 shadow_type;
gfloat label_xalign;
gfloat label_yalign;
/* Properties */
GtkAllocation child_allocation;
GtkAllocation label_allocation;
};
enum {
PROP_0,
PROP_LABEL,
PROP_LABEL_XALIGN,
PROP_LABEL_YALIGN,
PROP_SHADOW_TYPE,
PROP_LABEL_WIDGET
};
static void gtk_frame_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_frame_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static gboolean gtk_frame_draw (GtkWidget *widget,
cairo_t *cr);
static void gtk_frame_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_frame_remove (GtkContainer *container,
GtkWidget *child);
static void gtk_frame_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static GtkWidgetPath * gtk_frame_get_path_for_child (GtkContainer *container,
GtkWidget *child);
static void gtk_frame_compute_child_allocation (GtkFrame *frame,
GtkAllocation *child_allocation);
static void gtk_frame_real_compute_child_allocation (GtkFrame *frame,
GtkAllocation *child_allocation);
/* GtkBuildable */
static void gtk_frame_buildable_init (GtkBuildableIface *iface);
static void gtk_frame_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static void gtk_frame_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_frame_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size);
static void gtk_frame_get_preferred_height_for_width(GtkWidget *layout,
gint width,
gint *minimum_height,
gint *natural_height);
static void gtk_frame_get_preferred_width_for_height(GtkWidget *layout,
gint width,
gint *minimum_height,
gint *natural_height);
G_DEFINE_TYPE_WITH_CODE (GtkFrame, gtk_frame, GTK_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_frame_buildable_init))
static void
gtk_frame_class_init (GtkFrameClass *class)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
gobject_class = (GObjectClass*) class;
widget_class = GTK_WIDGET_CLASS (class);
container_class = GTK_CONTAINER_CLASS (class);
gobject_class->set_property = gtk_frame_set_property;
gobject_class->get_property = gtk_frame_get_property;
g_object_class_install_property (gobject_class,
PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("Text of the frame's label"),
NULL,
GTK_PARAM_READABLE |
GTK_PARAM_WRITABLE));
g_object_class_install_property (gobject_class,
PROP_LABEL_XALIGN,
g_param_spec_float ("label-xalign",
P_("Label xalign"),
P_("The horizontal alignment of the label"),
0.0,
1.0,
0.0,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_LABEL_YALIGN,
g_param_spec_float ("label-yalign",
P_("Label yalign"),
P_("The vertical alignment of the label"),
0.0,
1.0,
0.5,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SHADOW_TYPE,
g_param_spec_enum ("shadow-type",
P_("Frame shadow"),
P_("Appearance of the frame border"),
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_ETCHED_IN,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_LABEL_WIDGET,
g_param_spec_object ("label-widget",
P_("Label widget"),
P_("A widget to display in place of the usual frame label"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE));
widget_class->draw = gtk_frame_draw;
widget_class->size_allocate = gtk_frame_size_allocate;
widget_class->get_preferred_width = gtk_frame_get_preferred_width;
widget_class->get_preferred_height = gtk_frame_get_preferred_height;
widget_class->get_preferred_height_for_width = gtk_frame_get_preferred_height_for_width;
widget_class->get_preferred_width_for_height = gtk_frame_get_preferred_width_for_height;
container_class->remove = gtk_frame_remove;
container_class->forall = gtk_frame_forall;
container_class->get_path_for_child = gtk_frame_get_path_for_child;
class->compute_child_allocation = gtk_frame_real_compute_child_allocation;
g_type_class_add_private (class, sizeof (GtkFramePrivate));
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_FRAME_ACCESSIBLE);
}
static void
gtk_frame_buildable_init (GtkBuildableIface *iface)
{
iface->add_child = gtk_frame_buildable_add_child;
}
static void
gtk_frame_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
if (type && strcmp (type, "label") == 0)
gtk_frame_set_label_widget (GTK_FRAME (buildable), GTK_WIDGET (child));
else if (!type)
gtk_container_add (GTK_CONTAINER (buildable), GTK_WIDGET (child));
else
GTK_BUILDER_WARN_INVALID_CHILD_TYPE (GTK_FRAME (buildable), type);
}
static void
gtk_frame_init (GtkFrame *frame)
{
GtkFramePrivate *priv;
GtkStyleContext *context;
frame->priv = G_TYPE_INSTANCE_GET_PRIVATE (frame,
GTK_TYPE_FRAME,
GtkFramePrivate);
priv = frame->priv;
priv->label_widget = NULL;
priv->shadow_type = GTK_SHADOW_ETCHED_IN;
priv->label_xalign = 0.0;
priv->label_yalign = 0.5;
context = gtk_widget_get_style_context (GTK_WIDGET (frame));
gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
}
static void
gtk_frame_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkFrame *frame = GTK_FRAME (object);
GtkFramePrivate *priv = frame->priv;
switch (prop_id)
{
case PROP_LABEL:
gtk_frame_set_label (frame, g_value_get_string (value));
break;
case PROP_LABEL_XALIGN:
gtk_frame_set_label_align (frame, g_value_get_float (value),
priv->label_yalign);
break;
case PROP_LABEL_YALIGN:
gtk_frame_set_label_align (frame, priv->label_xalign,
g_value_get_float (value));
break;
case PROP_SHADOW_TYPE:
gtk_frame_set_shadow_type (frame, g_value_get_enum (value));
break;
case PROP_LABEL_WIDGET:
gtk_frame_set_label_widget (frame, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_frame_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkFrame *frame = GTK_FRAME (object);
GtkFramePrivate *priv = frame->priv;
switch (prop_id)
{
case PROP_LABEL:
g_value_set_string (value, gtk_frame_get_label (frame));
break;
case PROP_LABEL_XALIGN:
g_value_set_float (value, priv->label_xalign);
break;
case PROP_LABEL_YALIGN:
g_value_set_float (value, priv->label_yalign);
break;
case PROP_SHADOW_TYPE:
g_value_set_enum (value, priv->shadow_type);
break;
case PROP_LABEL_WIDGET:
g_value_set_object (value,
priv->label_widget ?
G_OBJECT (priv->label_widget) : NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/**
* gtk_frame_new:
* @label: the text to use as the label of the frame
*
* Creates a new #GtkFrame, with optional label @label.
* If @label is %NULL, the label is omitted.
*
* Return value: a new #GtkFrame widget
**/
GtkWidget*
gtk_frame_new (const gchar *label)
{
return g_object_new (GTK_TYPE_FRAME, "label", label, NULL);
}
static void
gtk_frame_remove (GtkContainer *container,
GtkWidget *child)
{
GtkFrame *frame = GTK_FRAME (container);
GtkFramePrivate *priv = frame->priv;
if (priv->label_widget == child)
gtk_frame_set_label_widget (frame, NULL);
else
GTK_CONTAINER_CLASS (gtk_frame_parent_class)->remove (container, child);
}
static void
gtk_frame_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkBin *bin = GTK_BIN (container);
GtkFrame *frame = GTK_FRAME (container);
GtkFramePrivate *priv = frame->priv;
GtkWidget *child;
child = gtk_bin_get_child (bin);
if (child)
(* callback) (child, callback_data);
if (priv->label_widget)
(* callback) (priv->label_widget, callback_data);
}
static GtkWidgetPath *
gtk_frame_get_path_for_child (GtkContainer *container,
GtkWidget *child)
{
GtkFramePrivate *priv = GTK_FRAME (container)->priv;
GtkWidgetPath *path;
path = GTK_CONTAINER_CLASS (gtk_frame_parent_class)->get_path_for_child (container, child);
if (child == priv->label_widget)
gtk_widget_path_iter_add_class (path,
gtk_widget_path_length (path) - 2,
GTK_STYLE_CLASS_FRAME);
return path;
}
/**
* gtk_frame_set_label:
* @frame: a #GtkFrame
* @label: (allow-none): the text to use as the label of the frame
*
* Sets the text of the label. If @label is %NULL,
* the current label is removed.
**/
void
gtk_frame_set_label (GtkFrame *frame,
const gchar *label)
{
g_return_if_fail (GTK_IS_FRAME (frame));
if (!label)
{
gtk_frame_set_label_widget (frame, NULL);
}
else
{
GtkWidget *child = gtk_label_new (label);
gtk_widget_show (child);
gtk_frame_set_label_widget (frame, child);
}
}
/**
* gtk_frame_get_label:
* @frame: a #GtkFrame
*
* If the frame's label widget is a #GtkLabel, returns the
* text in the label widget. (The frame will have a #GtkLabel
* for the label widget if a non-%NULL argument was passed
* to gtk_frame_new().)
*
* Return value: the text in the label, or %NULL if there
* was no label widget or the lable widget was not
* a #GtkLabel. This string is owned by GTK+ and
* must not be modified or freed.
**/
const gchar *
gtk_frame_get_label (GtkFrame *frame)
{
GtkFramePrivate *priv;
g_return_val_if_fail (GTK_IS_FRAME (frame), NULL);
priv = frame->priv;
if (GTK_IS_LABEL (priv->label_widget))
return gtk_label_get_text (GTK_LABEL (priv->label_widget));
else
return NULL;
}
/**
* gtk_frame_set_label_widget:
* @frame: a #GtkFrame
* @label_widget: the new label widget
*
* Sets the label widget for the frame. This is the widget that
* will appear embedded in the top edge of the frame as a
* title.
**/
void
gtk_frame_set_label_widget (GtkFrame *frame,
GtkWidget *label_widget)
{
GtkFramePrivate *priv;
gboolean need_resize = FALSE;
g_return_if_fail (GTK_IS_FRAME (frame));
g_return_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget));
g_return_if_fail (label_widget == NULL || gtk_widget_get_parent (label_widget) == NULL);
priv = frame->priv;
if (priv->label_widget == label_widget)
return;
if (priv->label_widget)
{
need_resize = gtk_widget_get_visible (priv->label_widget);
gtk_widget_unparent (priv->label_widget);
}
priv->label_widget = label_widget;
if (label_widget)
{
priv->label_widget = label_widget;
gtk_widget_set_parent (label_widget, GTK_WIDGET (frame));
need_resize |= gtk_widget_get_visible (label_widget);
}
if (gtk_widget_get_visible (GTK_WIDGET (frame)) && need_resize)
gtk_widget_queue_resize (GTK_WIDGET (frame));
g_object_freeze_notify (G_OBJECT (frame));
g_object_notify (G_OBJECT (frame), "label-widget");
g_object_notify (G_OBJECT (frame), "label");
g_object_thaw_notify (G_OBJECT (frame));
}
/**
* gtk_frame_get_label_widget:
* @frame: a #GtkFrame
*
* Retrieves the label widget for the frame. See
* gtk_frame_set_label_widget().
*
* Return value: (transfer none): the label widget, or %NULL if there is none.
**/
GtkWidget *
gtk_frame_get_label_widget (GtkFrame *frame)
{
g_return_val_if_fail (GTK_IS_FRAME (frame), NULL);
return frame->priv->label_widget;
}
/**
* gtk_frame_set_label_align:
* @frame: a #GtkFrame
* @xalign: The position of the label along the top edge
* of the widget. A value of 0.0 represents left alignment;
* 1.0 represents right alignment.
* @yalign: The y alignment of the label. A value of 0.0 aligns under
* the frame; 1.0 aligns above the frame. If the values are exactly
* 0.0 or 1.0 the gap in the frame won't be painted because the label
* will be completely above or below the frame.
*
* Sets the alignment of the frame widget's label. The
* default values for a newly created frame are 0.0 and 0.5.
**/
void
gtk_frame_set_label_align (GtkFrame *frame,
gfloat xalign,
gfloat yalign)
{
GtkFramePrivate *priv;
g_return_if_fail (GTK_IS_FRAME (frame));
priv = frame->priv;
xalign = CLAMP (xalign, 0.0, 1.0);
yalign = CLAMP (yalign, 0.0, 1.0);
g_object_freeze_notify (G_OBJECT (frame));
if (xalign != priv->label_xalign)
{
priv->label_xalign = xalign;
g_object_notify (G_OBJECT (frame), "label-xalign");
}
if (yalign != priv->label_yalign)
{
priv->label_yalign = yalign;
g_object_notify (G_OBJECT (frame), "label-yalign");
}
g_object_thaw_notify (G_OBJECT (frame));
gtk_widget_queue_resize (GTK_WIDGET (frame));
}
/**
* gtk_frame_get_label_align:
* @frame: a #GtkFrame
* @xalign: (out) (allow-none): location to store X alignment of
* frame's label, or %NULL
* @yalign: (out) (allow-none): location to store X alignment of
* frame's label, or %NULL
*
* Retrieves the X and Y alignment of the frame's label. See
* gtk_frame_set_label_align().
**/
void
gtk_frame_get_label_align (GtkFrame *frame,
gfloat *xalign,
gfloat *yalign)
{
GtkFramePrivate *priv;
g_return_if_fail (GTK_IS_FRAME (frame));
priv = frame->priv;
if (xalign)
*xalign = priv->label_xalign;
if (yalign)
*yalign = priv->label_yalign;
}
/**
* gtk_frame_set_shadow_type:
* @frame: a #GtkFrame
* @type: the new #GtkShadowType
*
* Sets the shadow type for @frame.
**/
void
gtk_frame_set_shadow_type (GtkFrame *frame,
GtkShadowType type)
{
GtkFramePrivate *priv;
GtkWidget *widget;
g_return_if_fail (GTK_IS_FRAME (frame));
priv = frame->priv;
if ((GtkShadowType) priv->shadow_type != type)
{
widget = GTK_WIDGET (frame);
priv->shadow_type = type;
g_object_notify (G_OBJECT (frame), "shadow-type");
if (gtk_widget_is_drawable (widget))
{
gtk_widget_queue_draw (widget);
}
gtk_widget_queue_resize (widget);
}
}
/**
* gtk_frame_get_shadow_type:
* @frame: a #GtkFrame
*
* Retrieves the shadow type of the frame. See
* gtk_frame_set_shadow_type().
*
* Return value: the current shadow type of the frame.
**/
GtkShadowType
gtk_frame_get_shadow_type (GtkFrame *frame)
{
g_return_val_if_fail (GTK_IS_FRAME (frame), GTK_SHADOW_ETCHED_IN);
return frame->priv->shadow_type;
}
static void
get_padding_and_border (GtkFrame *frame,
GtkBorder *border)
{
GtkStyleContext *context;
GtkStateFlags state;
context = gtk_widget_get_style_context (GTK_WIDGET (frame));
state = gtk_widget_get_state_flags (GTK_WIDGET (frame));
gtk_style_context_get_padding (context, state, border);
if (frame->priv->shadow_type != GTK_SHADOW_NONE)
{
GtkBorder tmp;
gtk_style_context_get_border (context, state, &tmp);
border->top += tmp.top;
border->right += tmp.right;
border->bottom += tmp.bottom;
border->left += tmp.left;
}
}
static gboolean
gtk_frame_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkFrame *frame;
GtkFramePrivate *priv;
GtkStyleContext *context;
gint x, y, width, height;
GtkAllocation allocation;
GtkBorder padding;
frame = GTK_FRAME (widget);
priv = frame->priv;
gtk_widget_get_allocation (widget, &allocation);
get_padding_and_border (frame, &padding);
context = gtk_widget_get_style_context (widget);
x = priv->child_allocation.x - allocation.x - padding.left;
y = priv->child_allocation.y - allocation.y - padding.top;
width = priv->child_allocation.width + padding.left + padding.right;
height = priv->child_allocation.height + padding.top + padding.bottom;
if (priv->shadow_type != GTK_SHADOW_NONE)
{
if (priv->label_widget)
{
gfloat xalign;
gint height_extra;
gint x2;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
xalign = priv->label_xalign;
else
xalign = 1 - priv->label_xalign;
height_extra = MAX (0, priv->label_allocation.height - padding.top)
- priv->label_yalign * priv->label_allocation.height;
y -= height_extra;
height += height_extra;
x2 = padding.left + (priv->child_allocation.width - priv->label_allocation.width - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD) * xalign + LABEL_SIDE_PAD;
/* If the label is completely over or under the frame we can omit the gap */
if (priv->label_yalign == 0.0 || priv->label_yalign == 1.0)
gtk_render_frame (context, cr, x, y, width, height);
else
gtk_render_frame_gap (context, cr,
x, y, width, height,
GTK_POS_TOP, x2,
x2 + priv->label_allocation.width + 2 * LABEL_PAD);
}
else
gtk_render_frame (context, cr, x, y, width, height);
}
GTK_WIDGET_CLASS (gtk_frame_parent_class)->draw (widget, cr);
return FALSE;
}
static void
gtk_frame_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkFrame *frame = GTK_FRAME (widget);
GtkFramePrivate *priv = frame->priv;
GtkBin *bin = GTK_BIN (widget);
GtkAllocation new_allocation;
GtkWidget *child;
gtk_widget_set_allocation (widget, allocation);
gtk_frame_compute_child_allocation (frame, &new_allocation);
/* If the child allocation changed, that means that the frame is drawn
* in a new place, so we must redraw the entire widget.
*/
if (gtk_widget_get_mapped (widget))
{
gdk_window_invalidate_rect (gtk_widget_get_window (widget), allocation, FALSE);
}
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
gtk_widget_size_allocate (child, &new_allocation);
priv->child_allocation = new_allocation;
if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))
{
GtkBorder padding;
gint nat_width, width, height;
gfloat xalign;
get_padding_and_border (frame, &padding);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
xalign = priv->label_xalign;
else
xalign = 1 - priv->label_xalign;
gtk_widget_get_preferred_width (priv->label_widget, NULL, &nat_width);
width = new_allocation.width - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD;
width = MIN (width, nat_width);
gtk_widget_get_preferred_height_for_width (priv->label_widget, width,
&height, NULL);
priv->label_allocation.x = priv->child_allocation.x + LABEL_SIDE_PAD +
(new_allocation.width - width - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD) * xalign + LABEL_PAD;
priv->label_allocation.width = width;
priv->label_allocation.y = priv->child_allocation.y - MAX (height, padding.top);
priv->label_allocation.height = height;
gtk_widget_size_allocate (priv->label_widget, &priv->label_allocation);
}
}
static void
gtk_frame_compute_child_allocation (GtkFrame *frame,
GtkAllocation *child_allocation)
{
g_return_if_fail (GTK_IS_FRAME (frame));
g_return_if_fail (child_allocation != NULL);
GTK_FRAME_GET_CLASS (frame)->compute_child_allocation (frame, child_allocation);
}
static void
gtk_frame_real_compute_child_allocation (GtkFrame *frame,
GtkAllocation *child_allocation)
{
GtkFramePrivate *priv = frame->priv;
GtkWidget *widget = GTK_WIDGET (frame);
GtkAllocation allocation;
GtkBorder padding;
gint top_margin;
guint border_width;
gtk_widget_get_allocation (widget, &allocation);
get_padding_and_border (frame, &padding);
border_width = gtk_container_get_border_width (GTK_CONTAINER (frame));
if (priv->label_widget)
{
gint nat_width, width, height;
gtk_widget_get_preferred_width (priv->label_widget, NULL, &nat_width);
width = allocation.width;
width -= 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
width -= (border_width * 2) + padding.left + padding.right;
width = MIN (width, nat_width);
gtk_widget_get_preferred_height_for_width (priv->label_widget, width,
&height, NULL);
top_margin = MAX (height, padding.top);
}
else
top_margin = padding.top;
child_allocation->x = border_width + padding.left;
child_allocation->y = border_width + top_margin;
child_allocation->width = MAX (1, (gint) allocation.width - (border_width * 2) -
padding.left - padding.right);
child_allocation->height = MAX (1, ((gint) allocation.height - child_allocation->y -
border_width - padding.bottom));
child_allocation->x += allocation.x;
child_allocation->y += allocation.y;
}
static void
gtk_frame_get_preferred_size (GtkWidget *request,
GtkOrientation orientation,
gint *minimum_size,
gint *natural_size)
{
GtkFrame *frame = GTK_FRAME (request);
GtkFramePrivate *priv = frame->priv;
GtkBorder padding;
GtkWidget *widget = GTK_WIDGET (request);
GtkWidget *child;
GtkBin *bin = GTK_BIN (widget);
gint child_min, child_nat;
gint minimum, natural;
guint border_width;
if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))
{
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_widget_get_preferred_width (priv->label_widget,
&child_min, &child_nat);
minimum = child_min + 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
natural = child_nat + 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
}
else
{
gtk_widget_get_preferred_height (priv->label_widget,
&child_min, &child_nat);
minimum = MAX (0, child_min - padding.top);
natural = MAX (0, child_nat - padding.top);
}
}
else
{
minimum = 0;
natural = 0;
}
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
{
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_widget_get_preferred_width (child,
&child_min, &child_nat);
minimum = MAX (minimum, child_min);
natural = MAX (natural, child_nat);
}
else
{
gtk_widget_get_preferred_height (child,
&child_min, &child_nat);
minimum += child_min;
natural += child_nat;
}
}
get_padding_and_border (frame, &padding);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
minimum += (border_width * 2) + padding.left + padding.right;
natural += (border_width * 2) + padding.left + padding.right;
}
else
{
minimum += (border_width * 2) + padding.top + padding.bottom;
natural += (border_width * 2) + padding.top + padding.bottom;
}
if (minimum_size)
*minimum_size = minimum;
if (natural_size)
*natural_size = natural;
}
static void
gtk_frame_get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
gtk_frame_get_preferred_size (widget, GTK_ORIENTATION_HORIZONTAL, minimum_size, natural_size);
}
static void
gtk_frame_get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
gtk_frame_get_preferred_size (widget, GTK_ORIENTATION_VERTICAL, minimum_size, natural_size);
}
static void
gtk_frame_get_preferred_height_for_width (GtkWidget *request,
gint width,
gint *minimum_height,
gint *natural_height)
{
GtkWidget *widget = GTK_WIDGET (request);
GtkWidget *child;
GtkFrame *frame = GTK_FRAME (widget);
GtkFramePrivate *priv = frame->priv;
GtkBin *bin = GTK_BIN (widget);
GtkBorder padding;
gint child_min, child_nat, label_width;
gint minimum, natural;
guint border_width;
get_padding_and_border (frame, &padding);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
minimum = (border_width * 2) + padding.top + padding.bottom;
natural = (border_width * 2) + padding.top + padding.bottom;
width -= (border_width * 2) + padding.left + padding.right;
label_width = width - 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))
{
gtk_widget_get_preferred_height_for_width (priv->label_widget,
label_width, &child_min, &child_nat);
minimum += child_min;
natural += child_nat;
}
child = gtk_bin_get_child (bin);
if (child && gtk_widget_get_visible (child))
{
gtk_widget_get_preferred_height_for_width (child,
width, &child_min, &child_nat);
minimum += child_min;
natural += child_nat;
}
if (minimum_height)
*minimum_height = minimum;
if (natural_height)
*natural_height = natural;
}
static void
gtk_frame_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, minimum_width, natural_width);
}
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