97 lines
3.0 KiB
Markdown
97 lines
3.0 KiB
Markdown
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---
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title: 高级选型卡
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updated: 2022-03-08 02:37:50Z
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created: 2022-01-25 08:39:06Z
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---
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用plus制作高级选项卡，原理是plus制作菜单，根据需要弹出
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```js
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//list["padpath"]为菜单数组
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winform.padpath.text=list["padpath"][2]//默认显示值
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winform.psmpath.text=list["psmpath"][2]
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winform.padpath.oncommand = function(id,event){
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menu.setItemTexts(list["padpath"])//动态生成菜单
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menu.popup(true,winform.padpath)//弹出菜单
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}
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winform.psmpath.oncommand = function(id,event){
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menu.setItemTexts(list["psmpath"])
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menu.popup(true,winform.psmpath)
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}
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menu.onOk = function(strip){
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menu.$popBuddy.text = strip.text//$popBuddy为父控件句柄
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}
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```
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# 折叠弹出菜单
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当菜单项目太多时，弹出后会超出屏幕区域，以下代码可实现折叠效果
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```js
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tbs.clear()//清空原tbs
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tbs.initPopup()//必须初始化
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//tbs.setItemTexts(str[tmp].data)
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for(i=1;#str[tmp].data;1){
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//for(k,v in str[tmp].data){
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tbs.add({
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text=str[tmp].data[i];
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})
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//折叠过长的列表
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var col = 6;
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if( i%col == 0){
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var tbrec = winform.tab1._defRect;
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var x2,y2,cx2,cy2 = tbrec.left,tbrec.top,tbrec.right-tbrec.left,tbrec.bottom-tbrec.top
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//x2,y2 = win.getPos(ctrl.hwnd,true)
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var rec = tbs.strips[tbs.count()]._defRect;
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rec.left=x2+(cx2+tbs.itemMargin)*math.floor(i/col)
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rec.right = rec.left+cx2
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rec.top=y2-cy2-tbs.itemMargin//
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rec.bottom=rec.top+cy2
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}
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}
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```
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## 预览
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## 原理
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在创建菜单过程中新菜单的位置是根据上一个菜单自动计算的，故要实现折叠效果，只需在需要折叠的菜单创建前手动修改最后一个菜单项的位置，此时不能用`setItemTexts`自动创建
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## 源码
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[串口配置界面](串口配置界面.md)
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[serialcfgv3.aardio](../_resources/serialcfgv3.aardio)
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## 存在的问题
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同样的代码在不同列表中表现不一
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[数字华容道](../工具/aardio/数字华容道.md)中可正确折叠，但是 [串口配置界面](串口配置界面.md)不行
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重新梳理原理和代码如下：
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```js
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tbs.clear()//清空原tbs
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tbs.initPopup()//必须初始化
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var col = 4; //每列最大项数量
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var tbrec = winform.plus._defRect;
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var x2,y2,cx2,cy2 = tbrec.left,tbrec.top,tbrec.right-tbrec.left,tbrec.bottom-tbrec.top
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for(i=1;8;1){
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tbs.add({
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text=(i+2) ++ "阶";//最小为3阶
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})
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//折叠过长的列表
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if( i%col == 1){//第n列的第一个元素为(n-1)*col+1，即余数为1
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var rec = tbs.strips[#tbs.strips]._defRect;
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rec.left=x2+(cx2+tbs.itemMargin)*math.floor(i/col)//floor为获取整数部分
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rec.right = rec.left+cx2
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rec.top=y2//此列的第一个数据顶头放置
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rec.bottom=rec.top+cy2
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}
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}
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```
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以上代码放到 [串口配置界面](串口配置界面.md)时不正常，需还列顶头的项出现在前列最底处，第一列比其他列数量多1，如下图（col=6）
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