#include "mywin_inc.h"



//弹出式菜单

//定义弹出式菜单类型
#define WIN_POPUP_TYPE "WIN_PopupStruct"



WIN_PopupStruct *WIN_CreatPopup (WIN_WindowStruct *base,
			void (*msgLoop)(struct _WIN_WindowStruct *win,WIN_MsgStruct *msg),
			int x,int y,int x_size,int y_size)
{ 
	//重设消息循环
	if (msgLoop==0)
	{
		msgLoop=(void (*)(struct _WIN_WindowStruct *win,WIN_MsgStruct *msg))POPUP_DefaultMsgLoop;  
	} 
	
	WIN_PopupStruct *ret=mymalloc (sizeof ( WIN_PopupStruct));
	//调用父类的构造函数
	if (ret)
	{
		mymemset (ret,0,sizeof ( WIN_PopupStruct));
		if (0==WIN_CreatWindowExt((WIN_WindowStruct *)ret,base,msgLoop,x,y,x_size,y_size))
		{
			//创建失败
			myfree (ret);
			ret=0;
		}
		else
		{
			//构造一个
			((WIN_WindowStruct *)ret)->winType=WIN_POPUP_TYPE;
			((WIN_WindowStruct *)ret)->bkcolor=0x342f2a;
			((WIN_WindowStruct *)ret)->color=0xc2ae9b;
			((WIN_WindowStruct *)ret)->intercept=1;//作为子窗口，接管按键消息
			ret->y_step=30;
		}
	}
	
	
	return ret;
}


//添加条目
void POPUP_AddItem (WIN_PopupStruct *popup,char *item)
{
	if (popup->itemNum<POPUP_ITEM_MAXNUM)
	{
		mymemcpy ( popup->items[popup->itemNum],item,strlen(item)+1);
		popup->itemNum++;
	}
}







//默认绘制函数
void POPUP_DefaultPaint (WIN_PopupStruct *popup)
{
	int x=0;
	int y=0;
	int x_size=((WIN_WindowStruct *)popup)->x_size;
	int y_size=((WIN_WindowStruct *)popup)->y_size;
	char txt_buff[20]={0};
	
	WIN_PaintBackGround ((WIN_WindowStruct *)popup);

	//绘制半透明背景
	WIN_SetLcdColor(0x342f2a);
	WIN_FillRectByColorAlpha (x,y,x_size,y_size,16);
	
	//显示选择框
	x+=2;y+=2;x_size-=4;y_size-=4;
	int step=WIN_GetFontHight();
	if (step<popup->y_step) step=popup->y_step;
	WIN_SetLcdColor (0xa100a1);
	WIN_FillRectByColorAlpha (x,y+step*popup->index,x_size,step,16);
	
	//显示条目
	WIN_SetFontMode (WIN_DRAWMODE_ALONE);
	WIN_SetLcdColor (((WIN_WindowStruct *)popup)->color);
	for (int i=0;i<popup->itemNum;i++)
	{
		WIN_DrawTxtCenterAtRect (popup->items[i],x,y+i*step,x_size,step);
	}
	
	//绘制边框
	WIN_SetLcdColor (0);
	WIN_DrawRect (0,0,((WIN_WindowStruct *)popup)->x_size,((WIN_WindowStruct *)popup)->y_size);
}
			
		



//默认消息处理函数
void POPUP_DefaultMsgLoop (WIN_PopupStruct *popup,WIN_MsgStruct *msg)
{
	WIN_MoveStruct *m=0;
	WIN_KeyStruct *k=0;
	switch (msg->msg)
	{	
		case WIN_MSG_PAINT:
			POPUP_DefaultPaint(popup);
		break;
		case WIN_MSG_KEY:
			k=msg->data.p;
			if (k->shortPress& KEY_VALUE_DOWN)
			{
				if (popup->index<popup->itemNum-1) popup->index++;
				else popup->index=0;
				WIN_SetInvalid((WIN_WindowStruct *)popup);
			}
			else if (k->shortPress&KEY_VALUE_UP)
			{
				if (popup->index>0) popup->index--;
				else popup->index=popup->itemNum-1;
				WIN_SetInvalid((WIN_WindowStruct *)popup);
			}
			else if (k->shortPress&KEY_VALUE_ENTER)
			{
				//确定，返回所选项目索引
				WIN_SetBlockWinReturn (popup->index,0,0);
				((WIN_WindowStruct *)popup)->deleteWindow((WIN_WindowStruct *)popup);
			}
			else if (k->shortPress&KEY_VALUE_HOME)
			{
				//返回，什么也没选
				WIN_SetBlockWinReturn (-1,0,0);
				((WIN_WindowStruct *)popup)->deleteWindow((WIN_WindowStruct *)popup);
			}
		break;
		case WIN_MSG_MOVE:
			m=msg->data.p;
			switch (m->moveType)
			{
				case MOVE_DATA_SHORT:
					popup->index=m->y_move/popup->y_step;
					if (popup->index>popup->itemNum-1) popup->index=popup->itemNum-1;
					//确定，返回所选项目索引
					WIN_SetBlockWinReturn (popup->index,0,0);
					((WIN_WindowStruct *)popup)->deleteWindow((WIN_WindowStruct *)popup);
					break;
				case MOVE_DATA_OUTSIDE:
					//返回，什么也没选
					WIN_SetBlockWinReturn (-1,0,0);
					((WIN_WindowStruct *)popup)->deleteWindow((WIN_WindowStruct *)popup);
					break;
				case MOVE_DATA_TOUCHIN:
					popup->index=m->y_move/popup->y_step;
					if (popup->index>popup->itemNum-1) popup->index=popup->itemNum-1;
					WIN_SetInvalid ((WIN_WindowStruct *)popup);
				default:
					break;
			}
			break;
		default:
			WIN_DefaultMsgLoop((WIN_WindowStruct *)popup,msg);
		break;
	}
}


//在指定位置弹出菜单
int POPUP_SelectItem (WIN_WindowStruct *base,char **item,int itemNum,int x,int y)
{
	int x_size=0;
	int y_size=itemNum*WIN_GetFontHight()+4;
	WIN_PopupStruct *popup=WIN_CreatPopup (base,0,x,y,x_size,y_size);
	if (y_size<itemNum*popup->y_step+4) y_size=itemNum*popup->y_step+4;
	for (int i=0;i<itemNum;i++)
	{ int len=strlen(item[i]);
		POPUP_AddItem(popup,item[i]);
		if (x_size<len) x_size=len; }
	x_size=(x_size+1)*WIN_GetFontWidth()/2+4;
	if (x+x_size>base->x_size) x-=x+x_size-base->x_size;
	if (y+y_size>base->y_size) y-=y+y_size-base->y_size;
	((WIN_WindowStruct *)popup)->x=x;
	((WIN_WindowStruct *)popup)->y=y;
	((WIN_WindowStruct *)popup)->x_size=x_size;
	((WIN_WindowStruct *)popup)->y_size=y_size;
	popup->y_step=y_size/itemNum;
		
	//设置弹出框的背景	
	WIN_SetBackPic ((WIN_WindowStruct *)popup);
		
	WIN_ShowWindow((WIN_WindowStruct *)popup);
	return WIN_RunBlock ((WIN_WindowStruct *)popup);
}