* 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/.
+ */
+
+#include "config.h"
#include "gtkcontainer.h"
#include "gtkmisc.h"
+#include "gtkintl.h"
+#include "gtkprivate.h"
-static void gtk_misc_class_init (GtkMiscClass *klass);
-static void gtk_misc_init (GtkMisc *misc);
-static void gtk_misc_realize (GtkWidget *widget);
+/**
+ * SECTION:gtkmisc
+ * @Short_description: Base class for widgets with alignments and padding
+ * @Title: GtkMisc
+ *
+ * The #GtkMisc widget is an abstract widget which is not useful itself, but
+ * is used to derive subclasses which have alignment and padding attributes.
+ *
+ * The horizontal and vertical padding attributes allows extra space to be
+ * added around the widget.
+ *
+ * The horizontal and vertical alignment attributes enable the widget to be
+ * positioned within its allocated area. Note that if the widget is added to
+ * a container in such a way that it expands automatically to fill its
+ * allocated area, the alignment settings will not alter the widgets position.
+ *
+ * <note>
+ * Note that the desired effect can in most cases be achieved by using the
+ * #GtkWidget:halign, #GtkWidget:valign and #GtkWidget:margin properties
+ * on the child widget, so GtkMisc should not be used in new code.
+ * </note>
+ */
-guint
-gtk_misc_get_type ()
+struct _GtkMiscPrivate
{
- static guint misc_type = 0;
+ gfloat xalign;
+ gfloat yalign;
- if (!misc_type)
- {
- GtkTypeInfo misc_info =
- {
- "GtkMisc",
- sizeof (GtkMisc),
- sizeof (GtkMiscClass),
- (GtkClassInitFunc) gtk_misc_class_init,
- (GtkObjectInitFunc) gtk_misc_init,
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL,
- };
-
- misc_type = gtk_type_unique (gtk_widget_get_type (), &misc_info);
- }
+ guint16 xpad;
+ guint16 ypad;
+};
- return misc_type;
-}
+enum {
+ PROP_0,
+ PROP_XALIGN,
+ PROP_YALIGN,
+ PROP_XPAD,
+ PROP_YPAD
+};
+
+static void gtk_misc_realize (GtkWidget *widget);
+static void gtk_misc_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_misc_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+
+G_DEFINE_ABSTRACT_TYPE (GtkMisc, gtk_misc, GTK_TYPE_WIDGET)
static void
gtk_misc_class_init (GtkMiscClass *class)
{
+ GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
+ gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
+ gobject_class->set_property = gtk_misc_set_property;
+ gobject_class->get_property = gtk_misc_get_property;
+
widget_class->realize = gtk_misc_realize;
+
+ g_object_class_install_property (gobject_class,
+ PROP_XALIGN,
+ g_param_spec_float ("xalign",
+ P_("X align"),
+ P_("The horizontal alignment, from 0 (left) to 1 (right). Reversed for RTL layouts."),
+ 0.0,
+ 1.0,
+ 0.5,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_YALIGN,
+ g_param_spec_float ("yalign",
+ P_("Y align"),
+ P_("The vertical alignment, from 0 (top) to 1 (bottom)"),
+ 0.0,
+ 1.0,
+ 0.5,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_XPAD,
+ g_param_spec_int ("xpad",
+ P_("X pad"),
+ P_("The amount of space to add on the left and right of the widget, in pixels"),
+ 0,
+ G_MAXINT,
+ 0,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_YPAD,
+ g_param_spec_int ("ypad",
+ P_("Y pad"),
+ P_("The amount of space to add on the top and bottom of the widget, in pixels"),
+ 0,
+ G_MAXINT,
+ 0,
+ GTK_PARAM_READWRITE));
+
+ g_type_class_add_private (class, sizeof (GtkMiscPrivate));
}
static void
gtk_misc_init (GtkMisc *misc)
{
- GTK_WIDGET_SET_FLAGS (misc, GTK_BASIC);
+ GtkMiscPrivate *priv;
+
+ misc->priv = G_TYPE_INSTANCE_GET_PRIVATE (misc,
+ GTK_TYPE_MISC,
+ GtkMiscPrivate);
+ priv = misc->priv;
+
+ priv->xalign = 0.5;
+ priv->yalign = 0.5;
+ priv->xpad = 0;
+ priv->ypad = 0;
+}
+
+static void
+gtk_misc_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkMisc *misc = GTK_MISC (object);
+ GtkMiscPrivate *priv = misc->priv;
+
+ switch (prop_id)
+ {
+ case PROP_XALIGN:
+ gtk_misc_set_alignment (misc, g_value_get_float (value), priv->yalign);
+ break;
+ case PROP_YALIGN:
+ gtk_misc_set_alignment (misc, priv->xalign, g_value_get_float (value));
+ break;
+ case PROP_XPAD:
+ gtk_misc_set_padding (misc, g_value_get_int (value), priv->ypad);
+ break;
+ case PROP_YPAD:
+ gtk_misc_set_padding (misc, priv->xpad, g_value_get_int (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_misc_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkMisc *misc = GTK_MISC (object);
+ GtkMiscPrivate *priv = misc->priv;
- misc->xalign = 0.5;
- misc->yalign = 0.5;
- misc->xpad = 0;
- misc->ypad = 0;
+ switch (prop_id)
+ {
+ case PROP_XALIGN:
+ g_value_set_float (value, priv->xalign);
+ break;
+ case PROP_YALIGN:
+ g_value_set_float (value, priv->yalign);
+ break;
+ case PROP_XPAD:
+ g_value_set_int (value, priv->xpad);
+ break;
+ case PROP_YPAD:
+ g_value_set_int (value, priv->ypad);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
+/**
+ * gtk_misc_set_alignment:
+ * @misc: a #GtkMisc.
+ * @xalign: the horizontal alignment, from 0 (left) to 1 (right).
+ * @yalign: the vertical alignment, from 0 (top) to 1 (bottom).
+ *
+ * Sets the alignment of the widget.
+ */
void
gtk_misc_set_alignment (GtkMisc *misc,
gfloat xalign,
gfloat yalign)
{
- g_return_if_fail (misc != NULL);
+ GtkMiscPrivate *priv;
+ GtkWidget *widget;
+
g_return_if_fail (GTK_IS_MISC (misc));
+ priv = misc->priv;
+
if (xalign < 0.0)
xalign = 0.0;
else if (xalign > 1.0)
else if (yalign > 1.0)
yalign = 1.0;
- if ((xalign != misc->xalign) || (yalign != misc->yalign))
+ if ((xalign != priv->xalign) || (yalign != priv->yalign))
{
- misc->xalign = xalign;
- misc->yalign = yalign;
+ g_object_freeze_notify (G_OBJECT (misc));
+ if (xalign != priv->xalign)
+ g_object_notify (G_OBJECT (misc), "xalign");
+
+ if (yalign != priv->yalign)
+ g_object_notify (G_OBJECT (misc), "yalign");
+
+ priv->xalign = xalign;
+ priv->yalign = yalign;
/* clear the area that was allocated before the change
*/
- if (GTK_WIDGET_DRAWABLE (misc))
- {
- GtkWidget *widget;
-
- widget = GTK_WIDGET (misc);
- gdk_window_clear_area (widget->window,
- widget->allocation.x,
- widget->allocation.y,
- widget->allocation.width,
- widget->allocation.height);
- gtk_widget_queue_draw (GTK_WIDGET (misc));
- }
+ widget = GTK_WIDGET (misc);
+ if (gtk_widget_is_drawable (widget))
+ gtk_widget_queue_draw (widget);
+
+ g_object_thaw_notify (G_OBJECT (misc));
}
}
+/**
+ * gtk_misc_get_alignment:
+ * @misc: a #GtkMisc
+ * @xalign: (out) (allow-none): location to store X alignment of @misc, or %NULL
+ * @yalign: (out) (allow-none): location to store Y alignment of @misc, or %NULL
+ *
+ * Gets the X and Y alignment of the widget within its allocation.
+ * See gtk_misc_set_alignment().
+ **/
+void
+gtk_misc_get_alignment (GtkMisc *misc,
+ gfloat *xalign,
+ gfloat *yalign)
+{
+ GtkMiscPrivate *priv;
+
+ g_return_if_fail (GTK_IS_MISC (misc));
+
+ priv = misc->priv;
+
+ if (xalign)
+ *xalign = priv->xalign;
+ if (yalign)
+ *yalign = priv->yalign;
+}
+
+/**
+ * gtk_misc_set_padding:
+ * @misc: a #GtkMisc.
+ * @xpad: the amount of space to add on the left and right of the widget,
+ * in pixels.
+ * @ypad: the amount of space to add on the top and bottom of the widget,
+ * in pixels.
+ *
+ * Sets the amount of space to add around the widget.
+ */
void
gtk_misc_set_padding (GtkMisc *misc,
gint xpad,
gint ypad)
{
- GtkRequisition *requisition;
-
- g_return_if_fail (misc != NULL);
+ GtkMiscPrivate *priv;
+
g_return_if_fail (GTK_IS_MISC (misc));
-
+
+ priv = misc->priv;
+
if (xpad < 0)
xpad = 0;
if (ypad < 0)
ypad = 0;
-
- if ((xpad != misc->xpad) || (ypad != misc->ypad))
+
+ if ((xpad != priv->xpad) || (ypad != priv->ypad))
{
- requisition = &(GTK_WIDGET (misc)->requisition);
- requisition->width -= misc->xpad * 2;
- requisition->height -= misc->ypad * 2;
-
- misc->xpad = xpad;
- misc->ypad = ypad;
-
- requisition->width += misc->xpad * 2;
- requisition->height += misc->ypad * 2;
-
- if (GTK_WIDGET_DRAWABLE (misc))
+ g_object_freeze_notify (G_OBJECT (misc));
+ if (xpad != priv->xpad)
+ g_object_notify (G_OBJECT (misc), "xpad");
+
+ if (ypad != priv->ypad)
+ g_object_notify (G_OBJECT (misc), "ypad");
+
+ priv->xpad = xpad;
+ priv->ypad = ypad;
+
+ if (gtk_widget_is_drawable (GTK_WIDGET (misc)))
gtk_widget_queue_resize (GTK_WIDGET (misc));
+
+ g_object_thaw_notify (G_OBJECT (misc));
}
}
+/**
+ * gtk_misc_get_padding:
+ * @misc: a #GtkMisc
+ * @xpad: (out) (allow-none): location to store padding in the X
+ * direction, or %NULL
+ * @ypad: (out) (allow-none): location to store padding in the Y
+ * direction, or %NULL
+ *
+ * Gets the padding in the X and Y directions of the widget.
+ * See gtk_misc_set_padding().
+ **/
+void
+gtk_misc_get_padding (GtkMisc *misc,
+ gint *xpad,
+ gint *ypad)
+{
+ GtkMiscPrivate *priv;
+
+ g_return_if_fail (GTK_IS_MISC (misc));
+
+ priv = misc->priv;
+
+ if (xpad)
+ *xpad = priv->xpad;
+ if (ypad)
+ *ypad = priv->ypad;
+}
+
static void
gtk_misc_realize (GtkWidget *widget)
{
- GtkMisc *misc;
+ GtkAllocation allocation;
+ GdkWindow *window;
GdkWindowAttr attributes;
gint attributes_mask;
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MISC (widget));
-
- GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
- misc = GTK_MISC (widget);
+ gtk_widget_set_realized (widget, TRUE);
- if (GTK_WIDGET_NO_WINDOW (widget))
+ if (!gtk_widget_get_has_window (widget))
{
- widget->window = gtk_widget_get_parent_window (widget);
- gdk_window_ref (widget->window);
- widget->style = gtk_style_attach (widget->style, widget->window);
+ window = gtk_widget_get_parent_window (widget);
+ gtk_widget_set_window (widget, window);
+ g_object_ref (window);
}
else
{
+ gtk_widget_get_allocation (widget, &allocation);
+
attributes.window_type = GDK_WINDOW_CHILD;
- attributes.x = widget->allocation.x;
- attributes.y = widget->allocation.y;
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
+ attributes.x = allocation.x;
+ attributes.y = allocation.y;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
- attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, widget);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
- gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
+ window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
+ gtk_widget_set_window (widget, window);
+ gtk_widget_register_window (widget, window);
+ gdk_window_set_background_pattern (window, NULL);
}
}
+
+/* Semi-private function used by gtk widgets inheriting from
+ * GtkMisc that takes into account both css padding and border
+ * and the padding specified with the GtkMisc properties.
+ */
+void
+_gtk_misc_get_padding_and_border (GtkMisc *misc,
+ GtkBorder *border)
+{
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder tmp;
+ gint xpad, ypad;
+
+ g_return_if_fail (GTK_IS_MISC (misc));
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (misc));
+ state = gtk_widget_get_state_flags (GTK_WIDGET (misc));
+
+ gtk_style_context_get_padding (context, state, border);
+
+ gtk_misc_get_padding (misc, &xpad, &ypad);
+ border->top += ypad;
+ border->left += xpad;
+ border->bottom += ypad;
+ border->right += xpad;
+
+ gtk_style_context_get_border (context, state, &tmp);
+ border->top += tmp.top;
+ border->right += tmp.right;
+ border->bottom += tmp.bottom;
+ border->left += tmp.left;
+}
+
projects / ~andy / gtk / blobdiff