在UITree Matlab中单击节点时,在Panel中显示列出的图像？

Question

我在Matlab工作.当用户鼠标单击树列表中的文件名时,我想逐个显示给定面板中的图像.谁能帮帮我吗？

树的代码:

src = strcat(pwd,'\Result\');
[mtree, container] = uitree('v0', 'Root',src,???
'Position',[10 10 290 370],'Parent', imageListPanel2); % Parent is ignored
 set(container, 'Parent', imageListPanel2);  % fix the uitree Parent

在面板中显示图像的功能:

function refreshDisplay(varargin)
    imgDisplayed = imshow(tmp,'parent',workingAx);
end %refreshDisplay

我只需要知道如何从我的树中调用函数refreshDisplay().再次记住,我想从树元素(文件)调用函数而不是从节点(子目录)调用.

问候.

Answer 1

以下是一个快速但完整的示例.代码已注释且易于遵循:

function MyImageViewer
    % prepare GUI
    hFig = figure('Menubar','none', 'Name','Image Viewer');
    hPan(1) = uipanel('Parent',hFig, 'Position',[0 0 0.3 1]);
    hPan(2) = uipanel('Parent',hFig, 'Position',[0.3 0 0.7 1]);

    ax = axes('Parent',hPan(2), 'Units','normalized', 'Position',[0 0 1 1]);
    axis(ax, 'off', 'image')

    [jtree,htree] = uitree('v0', 'Parent',hFig, ...
        'Root','C:\Users\Amro\Pictures\', 'SelectionChangeFcn',@changeFcn);
    set(htree, 'Parent',hPan(1), 'Units','normalized', 'Position',[0 0 1 1]);
    jtree.expand(jtree.getRoot);    % expand root node

    % list of supported image extensions
    fmt = imformats;
    imgExt = lower([fmt.ext]);

    function changeFcn(~,~)
        % get selected node
        nodes = jtree.getSelectedNodes;
        if isempty(nodes), return; end
        n = nodes(1);

        % only consider a leaf node (skip folders)
        if ~n.isLeaf, return; end

        % get complete node path (absolute filename)
        p = arrayfun(@(nd) char(nd.getName), n.getPath, 'Uniform',false);
        p = strjoin(p(:).', filesep);

        % check for supported image types, and show image
        [~,~,ext] = fileparts(p);
        if any(strcmpi(ext(2:end),imgExt))
            imshow(p, 'Parent',ax)
        end
    end
end