150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
/*
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* File : view.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#include <rtgui/dc.h>
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#include <rtgui/rtgui_system.h>
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#include <rtgui/widgets/view.h>
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#include <rtgui/widgets/workbench.h>
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static void _rtgui_view_constructor(rtgui_view_t *view)
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{
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/* init view */
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rtgui_widget_set_event_handler(RTGUI_WIDGET(view),
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rtgui_view_event_handler);
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view->title = RT_NULL;
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}
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rtgui_type_t *rtgui_view_type_get(void)
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{
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static rtgui_type_t *view_type = RT_NULL;
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if (!view_type)
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{
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view_type = rtgui_type_create("view", RTGUI_CONTAINER_TYPE,
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sizeof(rtgui_view_t), RTGUI_CONSTRUCTOR(_rtgui_view_constructor), RT_NULL);
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}
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return view_type;
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}
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rt_bool_t rtgui_view_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
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{
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struct rtgui_view* view = (struct rtgui_view*) widget;
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RT_ASSERT(widget != RT_NULL);
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switch (event->type)
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{
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case RTGUI_EVENT_PAINT:
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if (widget->on_draw != RT_NULL) widget->on_draw(widget, event);
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else
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{
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struct rtgui_dc* dc;
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struct rtgui_rect rect;
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dc = rtgui_dc_begin_drawing(widget);
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if (dc == RT_NULL) return RT_FALSE;
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rtgui_widget_get_rect(widget, &rect);
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/* fill view with background */
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rtgui_dc_fill_rect(dc, &rect);
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/* paint on each child */
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rtgui_container_dispatch_event(RTGUI_CONTAINER(view), event);
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rtgui_dc_end_drawing(dc);
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}
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break;
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default:
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return rtgui_container_event_handler(widget, event);
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}
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return RT_FALSE;
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}
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rtgui_view_t* rtgui_view_create(const char* title)
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{
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struct rtgui_view* view;
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/* allocate view */
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view = (struct rtgui_view*) rtgui_widget_create (RTGUI_VIEW_TYPE);
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if (view != RT_NULL)
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{
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if (title != RT_NULL)
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view->title = rt_strdup(title);
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}
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return view;
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}
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void rtgui_view_destroy(rtgui_view_t* view)
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{
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rtgui_widget_destroy(RTGUI_WIDGET(view));
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}
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void rtgui_view_set_box(rtgui_view_t* view, rtgui_box_t* box)
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{
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if (view == RT_NULL ||
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box == RT_NULL) return;
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rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(box));
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rtgui_widget_set_rect(RTGUI_WIDGET(box), &(RTGUI_WIDGET(view)->extent));
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}
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void rtgui_view_show(rtgui_view_t* view)
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{
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if (view == RT_NULL) return;
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if (RTGUI_WIDGET(view)->parent == RT_NULL)
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{
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RTGUI_WIDGET_UNHIDE(RTGUI_WIDGET(view));
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return;
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}
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rtgui_workbench_show_view((rtgui_workbench_t*)(RTGUI_WIDGET(view)->parent), view);
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}
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void rtgui_view_hide(rtgui_view_t* view)
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{
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if (view == RT_NULL) return;
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if (RTGUI_WIDGET(view)->parent == RT_NULL)
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{
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RTGUI_WIDGET_HIDE(RTGUI_WIDGET(view));
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return;
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}
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rtgui_workbench_hide_view((rtgui_workbench_t*)(RTGUI_WIDGET(view)->parent), view);
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}
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char* rtgui_view_get_title(rtgui_view_t* view)
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{
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RT_ASSERT(view != RT_NULL);
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return view->title;
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}
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void rtgui_view_set_title(rtgui_view_t* view, const char *title)
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{
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RT_ASSERT(view != RT_NULL);
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if (view->title != RT_NULL)
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{
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rtgui_free(view->title);
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if (title != RT_NULL) view->title = rt_strdup(title);
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else view->title = RT_NULL;
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}
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}
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