[mini2440]add device_info.c
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@651 bbd45198-f89e-11dd-88c7-29a3b14d5316
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qiuyiuestc
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#include <rtgui/rtgui.h>
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#include <rtgui/rtgui_system.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <rtgui/widgets/view.h>
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#include <rtgui/widgets/workbench.h>
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#ifdef RT_USING_LWIP
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#include <lwip/err.h>
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#include <lwip/dns.h>
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#include <lwip/netif.h>
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#endif
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static struct rtgui_view* device_view = RT_NULL;
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int get_thread_cnt()
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{
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int cnt = 0;
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struct rt_list_node *list, *node;
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extern struct rt_object_information rt_object_container[];
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list = &rt_object_container[RT_Object_Class_Thread].object_list;
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for (node = list->next; node != list; node = node->next)
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{
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cnt ++;
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}
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return cnt;
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}
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/*
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* Device Information View
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* Thread:
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* IP Address:
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* Gateway:
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* DNS:
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*/
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static rt_bool_t view_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
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{
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switch (event->type)
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{
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case RTGUI_EVENT_PAINT:
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{
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struct rtgui_dc* dc;
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struct rtgui_rect rect;
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char* line;
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rt_uint32_t total, used, max_used;
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line = rtgui_malloc(256);
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if (line == RT_NULL) return RT_FALSE;
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dc = rtgui_dc_begin_drawing(widget);
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if (dc == RT_NULL)
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{
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rtgui_free(line);
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return RT_FALSE;
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}
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rtgui_widget_get_rect(widget, &rect);
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/* fill background */
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rtgui_dc_fill_rect(dc, &rect);
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rect.y2 = rect.y1 + 18;
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{
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rt_uint16_t rect_width;
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rtgui_color_t saved;
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rtgui_rect_t mem_rect = rect;
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rtgui_rect_inflate(&mem_rect, -2);
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rtgui_dc_draw_rect(dc, &mem_rect);
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rtgui_rect_inflate(&mem_rect, -1);
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rect_width = rtgui_rect_width(mem_rect);
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saved = RTGUI_WIDGET_BACKGROUND(widget);
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RTGUI_WIDGET_BACKGROUND(widget) = light_grey;
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mem_rect.x2 = mem_rect.x1 + (max_used * rect_width / total);
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rtgui_dc_fill_rect(dc, &mem_rect);
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RTGUI_WIDGET_BACKGROUND(widget) = blue;
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mem_rect.x2 = mem_rect.x1 + (used * rect_width / total);
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rtgui_dc_fill_rect(dc, &mem_rect);
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/* restore color */
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RTGUI_WIDGET_BACKGROUND(widget) = saved;
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}
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rect.y1 += 18; rect.y2 += 18;
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sprintf(line, "线程数: %d", get_thread_cnt());
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rtgui_dc_draw_text(dc, line, &rect); rect.y1 += 16; rect.y2 += 16;
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#ifdef RT_USING_LWIP
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{
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struct ip_addr ip_addr;
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struct _ip_addr
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{
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rt_uint8_t addr0, addr1, addr2, addr3;
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} *addr;
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addr = (struct _ip_addr*)&netif_default->ip_addr.addr;
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sprintf(line, "IP地址 : %d.%d.%d.%d", addr->addr0, addr->addr1, addr->addr2, addr->addr3);
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rtgui_dc_draw_text(dc, line, &rect); rect.y1 += 16; rect.y2 += 16;
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addr = (struct _ip_addr*)&netif_default->gw.addr;
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sprintf(line, "网关地址: %d.%d.%d.%d", addr->addr0, addr->addr1, addr->addr2, addr->addr3);
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rtgui_dc_draw_text(dc, line, &rect); rect.y1 += 16; rect.y2 += 16;
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addr = (struct _ip_addr*)&netif_default->netmask.addr;
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sprintf(line, "网络掩码: %d.%d.%d.%d", addr->addr0, addr->addr1, addr->addr2, addr->addr3);
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rtgui_dc_draw_text(dc, line, &rect); rect.y1 += 16; rect.y2 += 16;
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#if LWIP_DNS
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ip_addr = dns_getserver(0);
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addr = (struct _ip_addr*)&ip_addr;
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sprintf(line, "DNS地址 : %d.%d.%d.%d", addr->addr0, addr->addr1, addr->addr2, addr->addr3);
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rtgui_dc_draw_text(dc, line, &rect); rect.y1 += 16; rect.y2 += 16;
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#endif
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}
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#endif
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rtgui_dc_end_drawing(dc);
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rtgui_free(line);
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return RT_FALSE;
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}
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case RTGUI_EVENT_KBD:
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{
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struct rtgui_event_kbd* ekbd;
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ekbd = (struct rtgui_event_kbd*)event;
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if (ekbd->type == RTGUI_KEYDOWN && ekbd->key == RTGUIK_RETURN)
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{
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rtgui_workbench_t* workbench;
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workbench = RTGUI_WORKBENCH(RTGUI_WIDGET(device_view)->parent);
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rtgui_workbench_remove_view(workbench, device_view);
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rtgui_view_destroy(device_view);
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device_view = RT_NULL;
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}
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}
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return RT_FALSE;
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}
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/* use parent event handler */
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return rtgui_view_event_handler(widget, event);
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}
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rtgui_view_t *device_view_create(rtgui_workbench_t* workbench)
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{
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if (device_view != RT_NULL)
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{
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rtgui_view_show(device_view, RT_FALSE);
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}
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else
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{
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/* create a view */
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device_view = rtgui_view_create("Device Info");
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/* set view event handler */
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rtgui_widget_set_event_handler(RTGUI_WIDGET(device_view), view_event_handler);
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/* this view can be focused */
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RTGUI_WIDGET(device_view)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
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/* add view to workbench */
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rtgui_workbench_add_view(workbench, device_view);
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}
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return device_view;
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}
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