HS191L/191LW_V128-190104/USER/Interface/ListBox.c

/********************************************************************************
 * File Name:			ListBox.c 
 * Function Describe:	ListBox 控件
 * Relate Module:		GUI.c
 * Writer:		Shliangwen
 * Date:		2016-1-8
 *******************************************************************************/
 #include "Includes.h" 
 
 #define N 100
 void ListBoxShow(struct SUT_LIST_BOX *p);
 SUT_LIST_BOX ListBox;

/*************************************************************************
ListBoxInit
***************************************************************************/
void ListBoxInit(struct SUT_LIST_BOX *p,char **itemlist,char unicode,const char **iconlist,char *features)
{
	unsigned int kk;
	///////////////////////
	unsigned char i,ch;
	//统计item
	p->item = itemlist; 
	
	i = 0;
	while(i<LIST_ITEM_NUM_MAX)
	{
		ch=p->item[i][0];
		if(ch==0)break;
		i ++;
	}

	i=i-1;
	p->itemnum = i+1;
	p->pgaenum=i/LIST_ROW;
	if(p->pgaenum%LIST_ROW)p->pgaenum+=1;

	//统计icon
	i=0;
	p->icon=iconlist;
	while(i<LIST_ITEM_NUM_MAX)
	{
		if(iconlist==NULL)break;
		ch=p->icon[i][0];
		if(ch==0)break;
		i ++;
	}

    p->iconnum=i;
    //特性
    for(i=0;i<LIST_ITEM_NUM_MAX;i++){
        if(i<p->itemnum){
            p->features[i]=features[i];
        }else{
            p->features[i]=0;
        }
    }

	//unicode
	p->unicode=unicode;
	//默认项
	p->page = 0;
	p->handle = 0;

	//显示
	ListBoxShow(p);
}

/******************************************************************************
指定允许的长度截取字符串，如果源长度超过指定长度，则截取之并将最后字符改为".."或"..."
同时处理中文字符
*******************************************************************************/
void StrIntercept(char *des,char *src,u16 len)  //name  scname  sizeof(name) 36
{
	int srclen;
	unsigned char d1,d2;
	unsigned char *p;
	int i;
	srclen=strlen(src);
	des[len-1]='\0';
	strncpy(des,src,len-1);
	//if(srclen=len-1 && len>5){
	if(srclen>=len-1 && len>5){//防止最后一条没显示..
		//将最后两个字符转为".."
		des[len-2]='.';
		des[len-3]='.';
		//判断倒数第3个字符是否为半个中文字符，如果是则将其转为‘.’，避免显示乱码
		p=(unsigned char *)des;
		i=0;
		while(i<(len-4)){
			if(*p>0x9f){
				p+=2;
				i+=2;
			}else{
				p+=1;
				i+=1;
			}
		}
		if(i==(len-4) && *p>0x9f){//半个汉字
			des[len-4]='.';
		}
	}
	
}
/********************************************************************************
ListBoxShowItem
 *******************************************************************************/
void ListBoxShowItem(struct SUT_LIST_BOX *p,unsigned short handle)
{
	u16 len;
	u16 x,y,hand;
	unsigned char buf[LIST_ITEM_TEXT_LEN_MAX+3];
	char str[LIST_ITEM_TEXT_LEN_MAX+1];
	char f;
	hand=handle % LIST_ROW;
	x=LIST_TOPX;
	y=LIST_TOPY+hand*16;
	#if 1  //换页时清理干净
	GuiClearArea(x,y,LIST_BAR_LEN+16,16);
  #else
	GuiClearArea(x,y,LIST_BAR_LEN,16);
	#endif

	memset(buf,0,sizeof(buf));
	if(p->unicode){
		StrUnicodeToAnsi(buf,sizeof(buf),p->item[handle]);
		buf[LIST_ITEM_TEXT_LEN_MAX+2]=0;
	}else{
		strncpy((char *)buf,p->item[handle],sizeof(buf));
		buf[LIST_ITEM_TEXT_LEN_MAX+2]=0;
	}
	//截取并适当补..
	StrIntercept(str,(char *)buf,LIST_ITEM_TEXT_LEN_MAX);
	
	if(p->icon!=NULL){//有图标
		f= p->features[handle];
		GuiShowBmp(x,y,p->icon[f]);
		GuiShowStr(x+16,y,str,0x01);
	}else{//无图标
		GuiShowStr(x,y,str,0x01);
	}
}

/********************************************************************************
 * Function:ListBoxShowBar
 * display a bar
 *******************************************************************************/
void ListBoxShowBar(struct SUT_LIST_BOX *p)
{
	unsigned char x,y,h,handle;
	char *str;
    
	x=LIST_TOPX;
	if(p->icon!=NULL){//有图标
			x+=16;
	}
	handle=p->handle%LIST_ROW;
	y=LIST_TOPY+handle*16;
	GuiReverseRect(x,y,LIST_BAR_LEN,16);
}
/********************************************************************************
 * Function:ListBoxShow
 * display ListBox
 *******************************************************************************/
void ListBoxShow(struct SUT_LIST_BOX *p)
{
	unsigned char i,j;
	u16 x,y;
	
	if(p->itemnum==0)return;
	
	//p->page=p->handle/LIST_ROW;
	j=p->page*LIST_ROW;

	for(i = j ; i <j+LIST_ROW ; i ++)
	{
		if(i >= p->itemnum){
			y=LIST_TOPY+(i % LIST_ROW)*16;
			GuiClearArea(LIST_TOPX,y,LIST_BAR_LEN+18,16);
		}else{
			ListBoxShowItem(p,i);
		}
	}
	ListBoxShowBar(p);

	//显示箭头
	x=LCD_WIDTH-17;
	if(p->page>0){
		GuiShowArrow(x+8,LIST_TOPY,8,3);//向上箭头
	}else{
		GuiClearArea(x,LIST_TOPY,16,8);
	}
	
	y=LIST_TOPY+LIST_ROW*16;
	if(p->page<(p->pgaenum-1)){
		GuiShowArrow(x+8,y,8,4);//向下箭头
	}else{
		GuiClearArea(x,y-8,16,8);
	}
}
/********************************************************************************
ListBoxResponse
ListBox控件的键盘响应处理   底层
 *******************************************************************************/
unsigned long ListBoxResponse(struct SUT_LIST_BOX *p)
{
	unsigned char temp;
	if(p->itemnum==0)return g_ulKeyValue;
//	SUT_PHONE_NUM PhoneNum[N];
//	int i = 0;
	
	switch(g_ulKeyValue)
	{
		case KEY_PANEL_UP:
			ListBoxShowBar(p);
		#if 0
		  if(p->handle==0)
			{
				p->handle=(p->itemnum-1);
				//清预览位置
				GuiClearArea(LIST_TOPX,LIST_TOPY,LIST_BAR_LEN,16*LIST_ROW);
			}
		#else
			if(p->handle==0)p->handle=(p->itemnum-1);
		#endif
			else p->handle --;
			temp=p->page;
			p->page=p->handle/LIST_ROW;
			if(temp!=p->page)ListBoxShow(p); 
			else ListBoxShowBar(p);

			break;
		case KEY_PANEL_DOWN:
			ListBoxShowBar(p);
			p->handle ++;
		#if 0
		  if(p->handle>=p-> itemnum)
			{
				p->handle=0;
				//清预览位置
				GuiClearArea(LIST_TOPX,LIST_TOPY,LIST_BAR_LEN+16,16*LIST_ROW);
			}
		#else
			if(p->handle>=p-> itemnum)p->handle=0;
		#endif
			temp = p->page;
			p->page=p->handle/LIST_ROW;
			if(temp!=p->page)ListBoxShow(p);
			else ListBoxShowBar(p);
			
			break;
		
		
		default:
			return g_ulKeyValue;
			break;
	}
	return 0;
}

/********************************************************************************
ListBoxGetHandle
获取ListBox当前手柄
 *******************************************************************************/
unsigned short ListBoxGetHandle(struct SUT_LIST_BOX *p)
{
	return p->handle;
}