222 lines
7.1 KiB
C
222 lines
7.1 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* st-box-layout-child.c: box layout child actor
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*
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* Copyright 2009 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU Lesser General Public License,
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* version 2.1, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* SECTION:st-box-layout-child
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* @short_description: meta data associated with a #StBoxLayout child.
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*
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* #StBoxLayoutChild is a #ClutterChildMeta implementation that stores the
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* child properties for children inside a #StBoxLayout.
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*/
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#include "st-box-layout-child.h"
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#include "st-private.h"
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G_DEFINE_TYPE (StBoxLayoutChild, st_box_layout_child, CLUTTER_TYPE_CHILD_META)
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enum
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{
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PROP_0,
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PROP_EXPAND,
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PROP_X_FILL,
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PROP_Y_FILL,
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PROP_X_ALIGN,
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PROP_Y_ALIGN
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};
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static ClutterLayoutMeta *
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get_layout_meta (StBoxLayoutChild *self)
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{
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ClutterChildMeta *meta = CLUTTER_CHILD_META (self);
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ClutterActor *actor = clutter_child_meta_get_actor (meta);
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ClutterContainer *container = clutter_child_meta_get_container (meta);
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ClutterLayoutManager *layout = clutter_actor_get_layout_manager (CLUTTER_ACTOR (container));
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return clutter_layout_manager_get_child_meta (layout, container, actor);
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}
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static void
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st_box_layout_child_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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StBoxLayoutChild *child = ST_BOX_LAYOUT_CHILD (object);
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GObject *meta = G_OBJECT (get_layout_meta (child));
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gboolean expand, fill;
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ClutterBoxAlignment layout_align;
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StAlign align;
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switch (property_id)
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{
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case PROP_EXPAND:
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g_object_get (meta, "expand", &expand, NULL);
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g_value_set_boolean (value, expand);
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break;
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case PROP_X_FILL:
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g_object_get (meta, "x-fill", &fill, NULL);
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g_value_set_boolean (value, fill);
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break;
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case PROP_Y_FILL:
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g_object_get (meta, "y-fill", &fill, NULL);
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g_value_set_boolean (value, fill);
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break;
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case PROP_X_ALIGN:
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case PROP_Y_ALIGN:
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g_object_get (meta, g_param_spec_get_name (pspec), &layout_align, NULL);
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switch (layout_align)
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{
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case CLUTTER_BOX_ALIGNMENT_START:
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align = ST_ALIGN_START;
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break;
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case CLUTTER_BOX_ALIGNMENT_CENTER:
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align = ST_ALIGN_MIDDLE;
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break;
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case CLUTTER_BOX_ALIGNMENT_END:
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align = ST_ALIGN_END;
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break;
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default:
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g_assert_not_reached ();
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}
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g_value_set_enum (value, align);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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st_box_layout_child_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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StBoxLayoutChild *child = ST_BOX_LAYOUT_CHILD (object);
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GObject *meta = G_OBJECT (get_layout_meta (child));
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ClutterBoxAlignment align;
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switch (property_id)
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{
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case PROP_EXPAND:
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g_object_set (meta, "expand", g_value_get_boolean (value), NULL);
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break;
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case PROP_X_FILL:
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child->x_fill_set = TRUE;
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g_object_set (meta, "x-fill", g_value_get_boolean (value), NULL);
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break;
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case PROP_Y_FILL:
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child->y_fill_set = TRUE;
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g_object_set (meta, "y-fill", g_value_get_boolean (value), NULL);
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break;
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case PROP_X_ALIGN:
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case PROP_Y_ALIGN:
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switch (g_value_get_enum (value))
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{
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case ST_ALIGN_START:
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align = CLUTTER_BOX_ALIGNMENT_START;
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break;
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case ST_ALIGN_MIDDLE:
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align = CLUTTER_BOX_ALIGNMENT_CENTER;
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break;
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case ST_ALIGN_END:
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align = CLUTTER_BOX_ALIGNMENT_END;
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break;
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default:
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g_assert_not_reached ();
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}
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g_object_set (meta, g_param_spec_get_name (pspec), align, NULL);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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st_box_layout_child_constructed (GObject *object)
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{
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StBoxLayoutChild *child = ST_BOX_LAYOUT_CHILD (object);
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GObject *meta = G_OBJECT (get_layout_meta (child));
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if (!child->x_fill_set)
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g_object_set (meta, "x-fill", TRUE, NULL);
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if (!child->y_fill_set)
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g_object_set (meta, "y-fill", TRUE, NULL);
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G_OBJECT_CLASS (st_box_layout_child_parent_class)->constructed (object);
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}
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static void
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st_box_layout_child_class_init (StBoxLayoutChildClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GParamSpec *pspec;
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object_class->get_property = st_box_layout_child_get_property;
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object_class->set_property = st_box_layout_child_set_property;
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object_class->constructed = st_box_layout_child_constructed;
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pspec = g_param_spec_boolean ("expand", "Expand",
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"Allocate the child extra space",
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FALSE,
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ST_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_EXPAND, pspec);
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pspec = g_param_spec_boolean ("x-fill", "x-fill",
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"Whether the child should receive priority "
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"when the container is allocating spare space "
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"on the horizontal axis",
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TRUE,
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ST_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_X_FILL, pspec);
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pspec = g_param_spec_boolean ("y-fill", "y-fill",
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"Whether the child should receive priority "
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"when the container is allocating spare space "
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"on the vertical axis",
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TRUE,
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ST_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_Y_FILL, pspec);
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pspec = g_param_spec_enum ("x-align",
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"X Alignment",
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"X alignment of the widget within the cell",
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ST_TYPE_ALIGN,
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ST_ALIGN_MIDDLE,
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ST_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_X_ALIGN, pspec);
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pspec = g_param_spec_enum ("y-align",
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"Y Alignment",
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"Y alignment of the widget within the cell",
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ST_TYPE_ALIGN,
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ST_ALIGN_MIDDLE,
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ST_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_Y_ALIGN, pspec);
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}
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static void
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st_box_layout_child_init (StBoxLayoutChild *self)
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{
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}
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