matlabgui按钮组怎么设置（MATLABGUI设计）

Gui中添加图标，能很大程度上提高用户的友好度，显得格外舒适。

MATLAB 官方并没有提供向菜单栏中添加图标的直接方法，基于figure设计的GUI中，可以通过JaveFrame属性间接设置图标。基于uifigure设计的GUI目前还没有间接的方法，相信后续版本会解决这个问题吧。

今天介绍一个在Matlab File Exchange/Github上公开的很实用的工具: setMenuIcon，我们可以很方便的向菜单选项中添加图标了。

文件或仓库网址：

• Matlab File Exchange: setMenuIcon - File Exchange - MATLAB Central (mathworks.com)
• Github: https://github.com/bimac/setMenuIcon

以下为核心源码：

function setMenuIcon(menuObject,iconFile) % SETMENUICON Add icons to UIMENU items. % SETMENUICON(MENUOBJECT,ICONFILE) sets the icon of MENUOBJECT to % ICONFILE. MENUOBJECT is a menu item created with MATLAB's own UIMENU. % ICONFILE denotes the path to an image file containing the desired icon. % This should work with GIF, JPEG and PNG images. % Copyright (C) 2020 Florian Rau % % setMenuIcon is free software: you can redistribute it and/or modify it % under the terms of the GNU General Public License as published by the % Free Software Foundation, either version 3 of the License, or (at your % option) any later version. % % setMenuIcon is distributed in the hope that it will be useful, but % WITHOUT ANY WARRANTY; without even the implied warranty of % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU % General Public License for more details. % % You should have received a copy of the GNU General Public License along % with setMenuIcon. If not, see <https://www.gnu.org/licenses/>. % REVISION HISTORY % version 1.0.0 initial release % version 1.0.1 corrected description and added acknowledgements % version 1.0.2 minor clean-up of the code % version 1.0.3 added example % version 1.0.4 added check for App Designer figures % version 1.0.5 minor clean-up % validate inputs validateattributes(menuObject,{'matlab.ui.container.Menu'},{'scalar'}) validateattributes(iconFile,{'char'},{'row'}) if ~exist(iconFile,'file') error('File not found: %s',iconFile) end % build stack of Menu objects menuStack = menuObject; while isa(menuStack(1).Parent,'matlab.ui.container.Menu') menuStack = [menuStack(1).Parent menuStack]; %#ok<AGROW> end % check for App Designer figure hFigure = menuStack(1).Parent; if isempty(get(hFigure,'JavaFrame_I')) error('Sorry, setMenuItem does not work with App Designer figures.') end % obtain jFrame (temporarily disabling the respective warning) warnID = 'MATLAB:ui:javaframe:PropertyToBeRemoved'; tmp = warning('query',warnID); warning('off',warnID) jFrame = get(hFigure,'JavaFrame'); warning(tmp.state,warnID) % get jMenuBar tmp = fieldnames(jFrame); tmp = tmp(cellfun(@any,regexp(tmp,'^f(?:HG\d|Figure)Client$'))); jMenuBar = jFrame.(tmp{1}).getMenuBar; % obtain jMenuItem positions = [menuStack.Position]; while jMenuBar.getMenuCount < positions(1) pause(0.05) end jMenuItem = jMenuBar.getMenu(positions(1)-1); for ii = 2:numel(menuStack) if jMenuItem.getMenuComponentCount < positions(ii) jMenuItem.doClick; pause(0.05) javax.swing.MenuSelectionManager.defaultManager.clearSelectedPath; end tmp = jMenuItem.getMenuComponents; tmp = tmp(arrayfun(@(x) contains(class(x),'JMenu'),tmp)); jMenuItem = tmp(positions(ii)); end % add icon to jMenuItem jMenuItem.setIcon(javax.swing.ImageIcon(iconFile));

示例代码：

% Copyright (C) 2020 Florian Rau % % This file is part of setMenuIcon. % % setMenuIcon is free software: you can redistribute it and/or modify it % under the terms of the GNU General Public License as published by the % Free Software Foundation, either version 3 of the License, or (at your % option) any later version. % % setMenuIcon is distributed in the hope that it will be useful, but % WITHOUT ANY WARRANTY; without even the implied warranty of % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General % Public License for more details. % % You should have received a copy of the GNU General Public License along % with setMenuIcon. If not, see <https://www.gnu.org/licenses/>. %% Step 1: create figure, menus and menu-items hFigure = figure( ... % create figure 'Menu', 'none', ... 'NumberTitle', 'off', ... 'DockControls', 'off', ... 'Name', 'Demo'); hMenu(1) = uimenu(hFigure,'Text','Menu'); % add menu to figure hItem(1) = uimenu(hMenu(1),'Text','Item'); % add item to menu hMenu(2) = uimenu(hMenu(1),'Text','Submenu'); % add submenu to menu hItem(2) = uimenu(hMenu(2),'Text','Boo!'); % add item to submenu %% Step 2: set icons for menus & menu-items setMenuIcon(hMenu(1),'example1.png') setMenuIcon(hItem(1),'example2.png') setMenuIcon(hMenu(2),'example3.png') setMenuIcon(hItem(2),'example4.png')

效果如下：

今天的分享就到这里了，感兴趣的朋友们可以去clone这个仓库，具体玩一玩。

最后祝大家，生活愉快！