Matlab 如何自定义应用程序设计器人物的背景？

我想附加一个徽标或更改应用程序设计器的整个背景

uifigure

。如何做到这一点？

• 如果要为整个图形设置一个纯色背景色，可以使用以下方法，例如：

  % When creating a new uifigure:
  fig = uifigure('Color',[R G B])
  % if the uifigure already exists:
  fig.Color = [R G B];
  

• 如果只想更改某个区域的背景色，可以添加一个没有标题或边框的

  uipanel

  （

  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
  

  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:

• 如果要将图像设置为某个区域的背景：

  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
  

  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:

笔记：

最后两个示例基于这两篇文章：，其操作原理是将

背景图像：“…”

条目添加到某个所需UI元素（恰好是HTML

div

）的

style

属性中

可以在GitHub存储库中找到一个用于编程操作应用程序设计器图形的工具

示例图像恰好是一个

.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

uifigure

：）的背景

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不幸的是，我还不能发表评论，所以这里是另一个答案

从Matlab 2017a开始，控制器不再具有容器属性。这项工作：

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")']);

还可以使用查找所有活动的webwindows

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（您可以使用标题或位置进行筛选，但两个相同的UIFigure将导致问题）

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免责声明，Davide Miani在此处发布了该信息：

为

app designer

制作标签也是个好主意。@hbaderts tnx制作标签