rtt-f030/components/rtgui/widgets/groupbox.c

156 lines
3.7 KiB
C

/*
* File : groupbox.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2012-07-29 Bernard first version
*/
#include <rtgui/dc.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/rtgui_theme.h>
#include <rtgui/widgets/groupbox.h>
static void _rtgui_groupbox_constructor(rtgui_groupbox_t *box)
{
/* init widget and set event handler */
rtgui_object_set_event_handler(RTGUI_OBJECT(box), rtgui_groupbox_event_handler);
/* set field */
box->box = RT_NULL;
box->label = RT_NULL;
box->selected = RT_NULL;
box->on_selected = RT_NULL;
}
DEFINE_CLASS_TYPE(groupbox, "groupbox",
RTGUI_PANEL_TYPE,
_rtgui_groupbox_constructor,
RT_NULL,
sizeof(struct rtgui_groupbox));
rt_bool_t rtgui_groupbox_event_handler(struct rtgui_object *object, struct rtgui_event* event)
{
struct rtgui_groupbox* box;
box = RTGUI_GROUPBOX(object);
switch (event->type)
{
case RTGUI_EVENT_PAINT:
{
rtgui_panel_event_handler(RTGUI_OBJECT(box), event);
/* dispatch paint event to child */
rtgui_container_dispatch_event(RTGUI_CONTAINER(box), event);
}
break;
default:
return rtgui_container_event_handler(object, event);
}
return RT_FALSE;
}
rtgui_groupbox_t* rtgui_groupbox_create(const char* label, struct rtgui_rect *rect,
int style, widget_select_t select_func)
{
struct rtgui_groupbox *box;
RT_ASSERT(select_func != RT_NULL);
box = (struct rtgui_groupbox*) rtgui_widget_create(RTGUI_GROUPBOX_TYPE);
if (box != RT_NULL)
{
rtgui_widget_set_rect(RTGUI_WIDGET(box), rect);
if (label != RT_NULL)
{
box->label = rt_strdup(label);
}
/* create layout box */
box->box = rtgui_box_create(style, RTGUI_WIDGET_DEFAULT_MARGIN + 1);
rtgui_container_set_box(RTGUI_CONTAINER(box), box->box);
rtgui_panel_set_border(RTGUI_PANEL(box), RTGUI_BORDER_NONE);
box->select_func = select_func;
}
return box;
}
void rtgui_groupbox_destroy(rtgui_groupbox_t* groupbox)
{
rtgui_object_destroy(RTGUI_OBJECT(groupbox));
}
void rtgui_groupbox_select_widget(struct rtgui_groupbox *box, struct rtgui_widget *widget)
{
struct rtgui_event event;
RT_ASSERT(box != RT_NULL);
RT_ASSERT(widget != RT_NULL);
if (box->selected != widget)
{
if (box->selected != RT_NULL)
{
box->select_func(box->selected, RT_FALSE);
if (box->on_selected != RT_NULL)
{
RTGUI_EVENT_INIT(&event, RTGUI_EVENT_UNSELECTED);
box->on_selected(RTGUI_OBJECT(widget), &event);
}
rtgui_widget_update(widget);
}
box->selected = widget;
}
box->select_func(box->selected, RT_TRUE);
if (box->on_selected != RT_NULL)
{
RTGUI_EVENT_INIT(&event, RTGUI_EVENT_SELECTED);
box->on_selected(RTGUI_OBJECT(widget), &event);
}
}
struct rtgui_widget *rtgui_groupbox_get_selected(struct rtgui_groupbox *box)
{
RT_ASSERT(box != RT_NULL);
return box->selected;
}
void rtgui_groupbox_add_widget(struct rtgui_groupbox *box, struct rtgui_widget *widget)
{
widget->user_data = (rt_uint32_t)box;
rtgui_container_add_child(RTGUI_CONTAINER(box), widget);
RTGUI_WIDGET_ALIGN(widget) = RTGUI_ALIGN_CENTER;
RTGUI_WIDGET_BACKGROUND(widget) = RTGUI_WIDGET_BACKGROUND(box);
}
void rtgui_groupbox_layout(struct rtgui_groupbox *box)
{
if (RTGUI_PANEL(box)->border_style != RTGUI_BORDER_NONE)
{
rtgui_box_layout(box->box);
}
else
{
struct rtgui_rect extent;
RT_ASSERT(box != RT_NULL);
rtgui_widget_get_extent(RTGUI_WIDGET(box), &extent);
rtgui_rect_inflate(&extent, -RTGUI_WIDGET_DEFAULT_MARGIN);
rtgui_box_layout_rect(box->box, &extent);
}
}