Question

我正在尝试在SciLab中设计一个GUI，根据选中标记更新它的属性。例如：复选框可能会在回调期间启用和更改多个文本框的背景;或按钮可能需要选择一定数量的复选框。

我的问题是，根据回调期间的复选框状态，我似乎无法为运行指令开发流控制语句。我当前的UIControl元素如下所示：

handles.chkS11En=uicontrol(f,'unit','normalized','BackgroundColor',[0.8,0.8,0.8],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[12],'FontUnits','points','FontWeight','normal','ForegroundColor',[0,0,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.02140625,0.791119360625398,0.0803125,0.0369667],'Relief','flat','SliderStep',[0.01,0.1],'String','S11','Style','checkbox','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','chkS11En','Callback','chkS11En_callback(handles)')

我选中复选框时运行的回调是这样的：

cS11En = findobj('tag', 'chkS11En');     // checkbox option
tS11MagUpperBound = findobj('tag', 'txtS11MagUpperBound');  //edit box that is controlled

mprintf("%d\n",cS11En.Value);
if cS11En.Value == [1] then
    mprintf("Checked = on \n");
    set(tS11MagUpperBound,'BackgroundColor',[1,1,1]);
    set(tS11MagUpperBound,"Enable",'on');
    set(cS11Save,"Enable",'on');
elseif cS11En.Value == [0] then
    mprintf("Checked = off \n");
    set(tS11MagUpperBound,'BackgroundColor',[0.8,0.8,0.8]);
    set(tS11MagUpperBound,'Enable','off');
    set(cS11Save,"Enable",'off');
end

这段代码的问题似乎是第二条路径（Value = 1）似乎永远不会运行，即使我不断切换复选框。我得到一个这样的输出：

0
Checked = off 
0
Checked = off 
0
Checked = off 
0
Checked = off

为了重新加载检查元素，我有什么问题吗？我希望能够运行两个路径，但我似乎永远不会从checkbox元素中获得值1。有人有解决方案吗？谢谢！

Answer 1

如果有人想通过谷歌或其他东西想知道这个，我就是这样修理的：

事实证明，当表单关闭且脚本正在运行时，SciLab有时不会清除所有UI变量。

解决方案是在每个程序的顶部添加几行，清除所有变量，关闭所有表单，并初始化变量。

基本上，添加：

// /////////////
// Lemon Pledge
// /////////////
mprintf("\n!!!!!!!!!!!!!!!!!!!\nCLEARING ALL VARIABLES\n!!!!!!!!!!!!!!!!!!!\n")
xdel(winsid());
clear;
clearglobal;

Answer 2

另一个不太复杂的解决方案是：使用相同的复选框，我将最后一个属性留为空白。

handles.chkS11En=uicontrol(f,'unit','normalized','BackgroundColor',[0.8,0.8,0.8],'Enable','on','FontAngle','normal','FontName','helvetica','FontSize',[12],'FontUnits','points','FontWeight','normal','ForegroundColor',[0,0,0],'HorizontalAlignment','center','ListboxTop',[],'Max',[1],'Min',[0],'Position',[0.02140625,0.791119360625398,0.0803125,0.0369667],'Relief','flat','SliderStep',[0.01,0.1],'String','S11','Style','checkbox','Value',[0],'VerticalAlignment','middle','Visible','on','Tag','chkS11En','Callback','')

然后我进行回调

function chkS11En_callback(handles)
    if handles.chkS11En.Value == [1] then
        mprintf("Checked = on \n");
        set(tS11MagUpperBound,'BackgroundColor',[1,1,1]);
        set(tS11MagUpperBound,"Enable",'on');
        set(cS11Save,"Enable",'on');
    else
        mprintf("Checked = off \n");
        set(tS11MagUpperBound,'BackgroundColor',[0.8,0.8,0.8]);
        set(tS11MagUpperBound,'Enable','off');
        set(cS11Save,"Enable",'off');
    end

瞧瞧，无需清理工作空间。

SciLab复选框UIControl值是否随状态而变化？

2 个答案: