[mini2440]add device_info.c

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@651 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/mini2440/device_info.c

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