Uitab problems with R2019a

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egdeluca 2019-9-25

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https://ww2.mathworks.cn/matlabcentral/answers/482027-uitab-problems-with-r2019a

评论： egdeluca 2019-9-25

Good morning,

I'm trying to create a JTabGroup with delete icon but I have some problems to java handle object. From the following example:

% Prepare a tab-group consisting of two tabs
hTabGroup = uitabgroup;
tab1 = uitab(hTabGroup, 'title','Panel 1');
a = axes('parent', tab1); surf(peaks);
tab2 = uitab(hTabGroup, 'title','Panel 2');
uicontrol(tab2, 'String','Close', 'Callback','close(gcbf)');
% Get the underlying Java reference (use hidden property)
jTabGroup = getappdata(handle(hTabGroup),'JTabbedPane');
% First let's load the close icon
jarFile = fullfile(matlabroot,'/java/jar/mwt.jar');
iconsFolder = '/com/mathworks/mwt/resources/';
iconURI = ['jar:file:/' jarFile '!' iconsFolder 'closebox.gif'];
icon = javax.swing.ImageIcon(java.net.URL(iconURI));
 
% Now let's prepare the close button: icon, size and callback
jCloseButton = handle(javax.swing.JButton,'CallbackProperties');
jCloseButton.setIcon(icon);
jCloseButton.setPreferredSize(java.awt.Dimension(15,15));
jCloseButton.setMaximumSize(java.awt.Dimension(15,15));
jCloseButton.setSize(java.awt.Dimension(15,15));
set(jCloseButton, 'ActionPerformedCallback',@(h,e)delete(tab2));
 
% Now let's prepare a tab panel with our label and close button
jPanel = javax.swing.JPanel;	% default layout = FlowLayout
set(jPanel.getLayout, 'Hgap',0, 'Vgap',0);  % default gap = 5px
jLabel = javax.swing.JLabel('Tab #2');
jPanel.add(jLabel);
jPanel.add(jCloseButton);
 
% Now attach this tab panel as the tab-group's 2nd component
jTabGroup.setTabComponentAt(1,jPanel);	% Tab #1 = second tab