rtt-f030/rtgui/widgets/toplevel.c

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/*
* File : toplevel.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2009, 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
* 2009-10-16 Bernard first version
*/
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/toplevel.h>
static void _rtgui_toplevel_constructor(rtgui_toplevel_t *toplevel)
{
/* set event handler */
rtgui_widget_set_event_handler(RTGUI_WIDGET(toplevel), rtgui_toplevel_event_handler);
/* set toplevel to self */
RTGUI_WIDGET(toplevel)->toplevel = RTGUI_WIDGET(toplevel);
/* init toplevel property */
toplevel->drawing = 0;
toplevel->external_clip_rect = RT_NULL;
toplevel->external_clip_size = 0;
/* hide toplevel default */
RTGUI_WIDGET_HIDE(RTGUI_WIDGET(toplevel));
/* set server as RT_NULL (no connected) */
toplevel->server = RT_NULL;
}
static void _rtgui_toplevel_destructor(rtgui_toplevel_t* toplevel)
{
/* release external clip info */
rtgui_free(toplevel->external_clip_rect);
toplevel->drawing = 0;
rtgui_free(toplevel->external_clip_rect);
toplevel->external_clip_rect = RT_NULL;
toplevel->external_clip_size = 0;
}
rtgui_type_t *rtgui_toplevel_type_get(void)
{
static rtgui_type_t *toplevel_type = RT_NULL;
if (!toplevel_type)
{
toplevel_type = rtgui_type_create("toplevel", RTGUI_CONTAINER_TYPE,
sizeof(rtgui_toplevel_t),
RTGUI_CONSTRUCTOR(_rtgui_toplevel_constructor),
RTGUI_DESTRUCTOR(_rtgui_toplevel_destructor));
}
return toplevel_type;
}
rt_bool_t rtgui_toplevel_event_handler(rtgui_widget_t* widget, rtgui_event_t* event)
{
rtgui_toplevel_t* toplevel = (rtgui_toplevel_t*)widget;
switch (event->type)
{
case RTGUI_EVENT_KBD:
if (RTGUI_CONTAINER(toplevel)->focused != RT_NULL)
{
RTGUI_CONTAINER(toplevel)->focused->event_handler(RTGUI_CONTAINER(toplevel)->focused, event);
}
break;
case RTGUI_EVENT_CLIP_INFO:
/* set toplevel external clip info */
rtgui_toplevel_handle_clip(toplevel, (struct rtgui_event_clip_info*)event);
/* update toplevel clip */
rtgui_toplevel_update_clip(toplevel);
break;
case RTGUI_EVENT_TIMER:
{
struct rtgui_timer* timer;
struct rtgui_event_timer* etimer = (struct rtgui_event_timer*) event;
timer = etimer->timer;
if (timer->timeout != RT_NULL)
{
/* call timeout function */
timer->timeout(timer, timer->user_data);
}
}
break;
case RTGUI_EVENT_COMMAND:
if (rtgui_container_dispatch_event(RTGUI_CONTAINER(widget), event) != RT_TRUE)
{
#ifndef RTGUI_USING_SMALL_SIZE
if (widget->on_command != RT_NULL)
{
widget->on_command(widget, event);
}
#endif
}
else return RT_TRUE;
break;
default :
return rtgui_container_event_handler(widget, event);
}
return RT_FALSE;
}
void rtgui_toplevel_handle_clip(struct rtgui_toplevel* top,
struct rtgui_event_clip_info* info)
{
RT_ASSERT(top != RT_NULL);
RT_ASSERT(info != RT_NULL);
/* release old rect array */
if (top->external_clip_size != 0)
{
rtgui_free(top->external_clip_rect);
top->external_clip_rect = RT_NULL;
top->external_clip_size = 0;
}
/* no rect info */
if (info->num_rect == 0) return;
top->external_clip_rect = (rtgui_rect_t*) rtgui_malloc(sizeof(rtgui_rect_t) *
info->num_rect);
top->external_clip_size = info->num_rect;
#ifdef RTGUI_USING_SMALL_SIZE
/* get rect list from topwin list */
rtgui_topwin_get_clipinfo(top->external_clip_rect, top->external_clip_size);
#else
/* copy rect array */
rt_memcpy(top->external_clip_rect, (void*)(info + 1), sizeof(rtgui_rect_t) * info->num_rect);
#endif
}
#include <rtgui/driver.h> /* to get screen rect */
void rtgui_toplevel_update_clip(rtgui_toplevel_t* top)
{
rt_uint32_t idx;
rtgui_container_t* container;
struct rtgui_list_node* node;
rtgui_rect_t screen_rect;
if (top == RT_NULL) return;
/* reset toplevel widget clip to extent */
rtgui_region_reset(&(RTGUI_WIDGET(top)->clip), &(RTGUI_WIDGET(top)->extent));
#ifndef RTGUI_USING_SMALL_SIZE
RTGUI_WIDGET(top)->clip_sync ++;
#endif
/* subtract the screen rect */
screen_rect.x1 = screen_rect.y1 = 0;
screen_rect.x2 = rtgui_graphic_driver_get_default()->width;
screen_rect.y2 = rtgui_graphic_driver_get_default()->height;
rtgui_region_intersect_rect(&(RTGUI_WIDGET(top)->clip), &(RTGUI_WIDGET(top)->clip),
&screen_rect);
/* subtract the external rect */
for (idx = 0; idx < top->external_clip_size; idx ++)
{
rtgui_region_subtract_rect(&(RTGUI_WIDGET(top)->clip), &(RTGUI_WIDGET(top)->clip),
&(top->external_clip_rect[idx]));
}
/* update the clip info of each child */
container = RTGUI_CONTAINER(top);
rtgui_list_foreach(node, &(container->children))
{
rtgui_widget_t* child = rtgui_list_entry(node, rtgui_widget_t, sibling);
rtgui_widget_update_clip(child);
}
}