用于uifigure组件的addChild [英] addChild for uifigure components

问题描述

我正在尝试使用uifigure(以编程方式，而不是appdesigner来开发我的第一个GUI [但是由于它与之相关，所以我将其添加为关键字])，并且(如预期的那样)我缺少了一些 GUI布局工具箱和窗口小部件工具箱用于标准Java图形.

I'm trying to develop my first GUIs with uifigure (programmatically, not with appdesigner [but I have added it as a keyword since it is related]), and (as expected) I'm missing some of the extended features and widgets as provided by the GUI Layout Toolbox and the Widgets Toolbox for standard java figures.

因此，我尝试将一些开发的小部件更改为uifigure，并且uigridlayout似乎非常方便，可以从GUI布局工具箱中替换uix.VBox和uix.HBox.

Thus, I tried to change some widgets that I had developed to uifigure, and uigridlayout seems to be quite handy to replace the uix.VBox and uix.HBox from the GUI Layout Toolbox.

对于标准的Java图形，假设我有一个类MyWidget和它的对应实例mywidget.最后，MyWidget是matlab.ui.container.internal.UIContainer的祖先，它提供了addChild方法，可以将其重写以自定义

For standard java figures, assume I have a class MyWidget and a corresponding instance mywidget of it. MyWidget would be, finally, an ancestor of matlab.ui.container.internal.UIContainer which provides an addChild method which can be overriden to customize the behaviour of

  uicontrol(mywidget)

我正在为uifigure组件寻找相同的东西.假定从matlab.ui.container.GridLayout派生的跟随类，这是uigridlayout调用结果的类.

I'm looking for the same for uifigure components. Assume the follwing class derived from matlab.ui.container.GridLayout, which is the class of the result of a uigridlayout call.

classdef MyGrid < matlab.ui.container.GridLayout
    methods
        function self = MyGrid(varargin)
            self = [e-mail](varargin{:});
        end
    end
    methods ( Access = protected )

        function addChild(self, child)
            disp('hooray');
            [e-mail](self, child);
        end
    end
end

现在我启动一个MyGrid实例

g = MyGrid()

一切看起来不错:

g = 

  MyGrid with properties:

    RowHeight: {'1x'  '1x'}
    ColumnWidth: {'1x'  '1x'}

但向其添加子项不会调用addChild方法:

but adding a child to it does not call the addChild method:

>> uibutton(g)

ans = 

  Button (Button) with properties:

               Text: 'Button'
               Icon: ''
    ButtonPushedFcn: ''
           Position: [100 100 100 22]

注意:上面的hooray没有输出. Parent属性正确:

Note: No output of hooray above. The Parent property is correct:

>> ans.Parent

ans = 

  MyGrid with properties:

      RowHeight: {'1x'  '1x'}
    ColumnWidth: {'1x'  '1x'}

  Show all properties

据此，我猜想addChild不是添加孩子的方法(至少是matlab.ui.container.GridLayout).

From this I guess that addChild is not the method used (at least by matlab.ui.container.GridLayout) to add a child.

有人知道将子项添加到uifigure组件中的容器的机制吗?

Does anyone know the mechanism of adding a child to a container in an uifigure component?

推荐答案

我不知道为什么昨天没去那里，但是matlab.ui.container.GridLayout的代码具有受保护的方法

I don't know why I didn't look there yesterday, but the code of matlab.ui.container.GridLayout has the (protected) method

function handleChildAdded(obj, childAdded)
    obj.processChildAdded(childAdded);

    obj.addChildLayoutPropChangedListener(childAdded);

    obj.updateImplicitGridSize('childAdded', childAdded);

    obj.updateLastCell('childAdded', childAdded);
end

对于我来说，方法processChildAdded可能更好，但它是私有的.无论如何，handleChildAdded起作用:

The method processChildAdded might be better for my purposes, but is private. Anyway, handleChildAdded works:

classdef MyGrid < matlab.ui.container.GridLayout
    methods
        function self = MyGrid(varargin)
            self = [e-mail](varargin{:});
        end
    end
    methods ( Access = protected )
        function handleChildAdded(self, child)
            disp('hooray');
            [e-mail](self, child);
        end
    end
end

>> g=MyGrid();
>> uibutton(g);
hooray

这篇关于用于uifigure组件的addChild的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！