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我想附加一个徽标或更改 App Designer 的整个背景uifigure。如何才能做到这一点?

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2 回答 2

0
  • 如果您想为整个 figure 设置纯色背景颜色,则存在一种记录方法来执行此操作,例如:

    % When creating a new uifigure:
    fig = uifigure('Color',[R G B])
    % if the uifigure already exists:
    fig.Color = [R G B];
    
  • 如果您只想更改某个区域的背景颜色,您可以添加一个uipanel不带标题或边框的 ( uipanel(...,'BorderType','none','Title','','BackgroundColor',[R G B]))。
  • 如果要将图像设置为整个图形的背景

    function q41602238a
    %% Turn off some warnings:
    warning off Matlab:structOnObject
    warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame
    
    %% 0. Create a uifigure:
    app = uifigure();
    %% 1. Get a handle to the webwindow:
    while true
      try   
         win = struct(struct(app).Controller).Container.CEF;
         break
      catch
         pause(0.1); % Give the figure (webpage) some more time to load
      end
    end 
    %% 2. Find the data_tag of the DOM element we want to edit:
    data_tag = char(struct(app).Controller.ProxyView.PeerNode.getId);
    
    %% 3. Manipulate the DOM via a JS command
    while true
      try
        win.executeJS(['dojo.style(dojo.query("[data-tag^=''' data_tag ''']")[0],"background-image","url(https://upload.wikimedia.org/wikipedia/commons/8/80/Wikipedia-logo-v2.svg")']);
        break
      catch
        pause(0.1); % Maybe JS is still not ready.
      end
    end
    

    结果:

    全BG

  • 如果您想将图像设置为某个区域的背景

    function q41602238b
    %% Turn off some warnings:
    warning off Matlab:structOnObject
    warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame
    
    %% 0. Create a some element:
    app = uifigure();
    pnl = uipanel(app);
    %% 1. Get a handle to the webwindow:
    while true
      try   
         win = struct(struct(app).Controller).Container.CEF;
         % disp(win.URL);
         break
      catch
         pause(0.1); % Give the figure (webpage) some more time to load
      end
    end 
    %% 2. Find the id of the DOM element we want to edit:
    data_tag = char(struct(pnl).Controller.ProxyView.PeerNode.getId);
    widgetId = win.executeJS(['dojo.getAttr(dojo.query("[data-tag^=''' data_tag ''']")[0],"widgetid")']);
    
    %% 3. Manipulate the DOM via a JS command
    dojo_style_prefix = ['dojo.style(dojo.query("#' widgetId(2:end-1) '")[0],'];
    while true
      try
        win.executeJS([dojo_style_prefix '"background-image","url(https://upload.wikimedia.org/wikipedia/commons/8/80/Wikipedia-logo-v2.svg")']);
    
        break
      catch
        pause(0.1); % Maybe JS is still not ready.
      end
    end
    

    结果:

    面板背景

笔记:

  1. 最后两个示例基于以下两个帖子:12,操作原理是向某个所需 UI 元素(恰好是 HTML )background-image: "..."的属性添加一个条目。stylediv

  2. 可以在GitHub 存储库中找到对 App Designer 图形进行编程操作的工具。

  3. 示例图像恰好是 a .svg,这很有趣,因为我们可以以这种格式导出“常规” MATLAB 图形,然后将它们用作 a 的背景uifigure:)

于 2017-03-08T15:52:26.690 回答
0

不幸的是,我还不能发表评论,所以这是另一个答案。

从 Matlab 2017a 开始,控制器不再具有 Container 属性。这有效:

warning off Matlab:structOnObject
warning off Matlab:HandleGraphics:ObsoletedProperty:JavaFrame

win = struct(struct(struct(app).Controller).PlatformHost).CEF;

data_tag = char(struct(app).Controller.ProxyView.PeerNode.getId);

win.executeJS(['dojo.style(dojo.query("[data-tag^=''' data_tag ''']")[0],"background-image","url(https://upload.wikimedia.org/wikipedia/commons/8/80/Wikipedia-logo-v2.svg")']);

也有可能找到所有活动的网络窗口使用

webWindows = matlab.internal.webwindowmanager.instance.findAllWebwindows();

不幸的是我还没有找到,哪个窗口属于哪个 UIFigure(您可以使用 Title 或 Position 进行过滤,但是两个相同的 UIFigure 会导致问题)。

免责声明,Davide Miani 在此处发布了该信息:https ://undocumentedmatlab.com/blog/customizing-uifigures-part-1#comment-406524

于 2018-02-14T14:23:03.703 回答