JIDE Software Developer Forums

by **alf_cs** » Wed Mar 02, 2011 1:03 am

Hi,

I am using JIDE DocumentComponent in the following way:
1) create instance of JTable
2) wrap the JTable instance in JScrollPane
3) wrap the JScrollPane in DocumentComponent
4) Add the DocumentComponent into DocumentPane.

I am aware of getDisplayTitle() method in DocumentComponent, which I can use to customized the DocumentComponent's title.
However, it seems that getDisplayTitle() method is called only when the DocumentPane is activated or de-activated.

Is there a way to update DocumentComponent title based on the content of JComponent (in this case, it is JTable) wrapped inside DocumentComponent?
For example: If the table is empty, i want to show the title in blue colour, but if the table contains at least 1 row, i want to show the title in red colour.

Cheers,
al

by **JIDE Support** » Wed Mar 02, 2011 12:20 pm

Please try to add a table model listener to your table model. You could have your logic there to determine if it is an empty table or not. You then could invoke DocumentComponent#setBackground()/setTitle() then TdiGroup#updateTitle(DocumentComponent) to update the title as you wish.

Thanks,

by **alf_cs** » Tue Mar 08, 2011 7:12 am

Thanks Jide Support.

One question tho, when I setBackground(), the tab background changed to RED, however, the title bar's background colour did not change.

I read a jide component guide that overriding getDisplayTitle() to return HTML string like "<html><font bgcolor=red>title</font><html>" can do the trick.

I tried that, but it did not work. Can i call setTitle() and pass that html string as parameter?

by **JIDE Support** » Tue Mar 08, 2011 12:42 pm

Can you please post an image so that I could better understand where you want to change the background?

Thanks,

by **alf_cs** » Tue Mar 08, 2011 11:33 pm

Apology for the confusion.

I refer to http://www.jidesoft.com/products/JIDE_C ... _Guide.pdf page 8.
There is an example how to customized the title of DocumentComponent which is placed in DocumentPane.

The example shows how to change the title's font color and style.

What I want to change is the title's background. Expected result is as follows:

: jide-colored-documentcomponent-title.JPG (5.48 KiB) Viewed 24408 times

Hope this clarifies the confusion. Thanks.

by **JIDE Support** » Wed Mar 09, 2011 1:41 pm

Sorry that I still cannot get what title bar is. DocumentComponent itself does not create any title bar. Tried to get the idea from JIDE DocumentPaneDemo and invoked JideTabbedPane#setBackgroundAt() for the child component of a DocumentComponent. Please give the attached test case a try and see if that's what you are looking for.

Thanks,

by **Walter Laan** » Thu Mar 10, 2011 1:11 am

I think the OP is looking for something like this:

Code: Select all: public static class CustomDocumentPane extends DocumentPane { private final Map<String, Color> bgcolors = new HashMap<String, Color>(); private final Map<String, Color> fgcolors = new HashMap<String, Color>(); private TabbedPaneCustomizer delegateCustomizer = null; private final TabbedPaneCustomizer customizer = new TabbedPaneCustomizer() { public void customize(final JideTabbedPane tabbedPane) { tabbedPane.setOpaque(true); if(delegateCustomizer != null) { delegateCustomizer.customize(tabbedPane); } tabbedPane.setTabColorProvider(new ColorProvider() { public Color getBackgroundAt(int tabIndex) { Color color = findColor(bgcolors, tabIndex); if(color == null && isXertoStyle() && tabbedPane.getSelectedIndex() == tabIndex) { return UIManager.getColor("JideTabbedPane.light"); } return color; } public Color getForegroudAt(int tabIndex) { Color color = findColor(fgcolors, tabIndex); return color != null ? color : Color.BLACK; } public float getGradientRatio(int tabIndex) { if(isXertoStyle() && tabbedPane.getSelectedIndex() == tabIndex) { return 1.0f; } return 0.9f; } private Color findColor(Map<String, Color> colors, int index) { Component c = tabbedPane.getComponentAt(index); if(c instanceof JComponent) { return colors.get(((JComponent) c).getClientProperty("tabColorKey")); } else { return null; } } }); } }; public CustomDocumentPane() { applyComponentOrientation(ComponentOrientation.getOrientation(getLocale())); super.setTabbedPaneCustomizer(customizer); super.setPopupMenuCustomizer(new PopupMenuCustomizer() { public void customizePopupMenu(JPopupMenu menu, final IDocumentPane pane, final String dragComponentName, IDocumentGroup dropGroup, boolean onTab) { if(onTab) { menu.addSeparator(); JideMenu m = new JideMenu("Color"); final ColorChooserPanel panel = new ColorChooserPanel( ColorChooserPanel.PALETTE_COLOR_40); panel.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { String tabName = dragComponentName; pane.getDocument(dragComponentName).getComponent().putClientProperty("tabColorKey", tabName); Color color = panel.getSelectedColor(); bgcolors.put(tabName, color); if(color != null) { double blackDiff = getColorDifference(color, Color.BLACK); double whiteDiff = getColorDifference(color, Color.WHITE); fgcolors.put(tabName, whiteDiff > blackDiff ? Color.WHITE : Color.BLACK); } else { fgcolors.remove(tabName); } CustomDocumentPane.this.repaint(); } }); m.add(panel); menu.add(m); } } }); } public static boolean isXertoStyle() { return LookAndFeelFactory.getStyle() == LookAndFeelFactory.XERTO_STYLE || LookAndFeelFactory.getStyle() == LookAndFeelFactory.XERTO_STYLE_WITHOUT_MENU; } public static double getColorDifference(Color c1, Color c2) { int diffRed = c1.getRed() - c2.getRed(); int diffGreen = c1.getGreen() - c2.getGreen(); int diffBlue = c1.getBlue() - c2.getBlue(); return Math.sqrt(diffRed * diffRed + diffGreen * diffGreen + diffBlue * diffBlue); } @Override public void setTabbedPaneCustomizer(TabbedPaneCustomizer customizer) { delegateCustomizer = customizer; } }

by **alf_cs** » Tue Mar 29, 2011 1:24 am

Thanks Jide Support for your help.
JideTabbedPane#setBackgroundAt() does the job.

It was not working previously, because other dev in my team did a custom implementation of tabbedpane UI which caused setBackgroundAt(Color) did not work as expected.

Thanks to Walter too for the code example.

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Updating DocumentComponent title based on its content

Updating DocumentComponent title based on its content

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