Changing the size of dialog window
Dear,
My front panel (dialog window) includes a dynamic array (inside a tab control) which size can be changed.
Would you please let me know how to control the dialog window with tab control in program code?
Hello,
You can control your VI window bound using something like I did as an example for you.
See the attached file
Software developer
www.mcm-electronics.com
PS: Don't forget to rate a good anwser ; )
Currently using Labview 2011
PORTUGAL
Attachments:
FP size.JPG 14 KB
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PeteHello,
You can control your VI window bound using something like I did as an example for you.
See the attached file
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PS: Don't forget to rate a good anwser ; )
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Attachments:
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Greetings,
I am trying to build a mechanism to perform zooming on a JPanel with an arbitrary collection of components (including nested JPanels). I've tried a number of things with little success. The following is my most promising contraption. It can zoom labels, textfields, checkboxes, and buttons. However, for some reason, the combo box refuses to accept a changes to its size. I'm not sure why this is the case. Its font changes size appropriately.
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import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.KeyEventPostProcessor;
import java.awt.KeyboardFocusManager;
import java.awt.event.KeyEvent;
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import javax.swing.JComboBox;
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panel.add(new JTextField("Hello World"));
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* Create the GUI and show it. For thread safety, this method should be
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setContentPane(newContentPane);
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frame.pack();
frame.setVisible(true);
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createAndShowGUI();component.setSize(transform(component.getSize()));First of all the above line is not needed. The LayoutManager will determine the bounds (size and location) of each component in the container based on the rules of the LayoutManager. The Flow Layout is the default layout manager for a panel and it simply uses the preferred size of the component as the size of the component.
So what happens is that when you change the font of the component you are changing the preferred size of the component.
So why doesn't the combo box work? Well I took a look at the preferred size calculation of the combo box (from the BasicComboBoxUI) and it actually caches the preferred size. The combo box uses a renderer, so the value is cached for performance one would assume. The method does recalculate the size when certain properties change. Note the isDisplaySizeDirty flag used in the code below:
else if (propertyName.equals("prototypeDisplayValue")) {
isMinimumSizeDirty = true;
isDisplaySizeDirty = true;
comboBox.revalidate();
else if (propertyName.equals("renderer")) {
isMinimumSizeDirty = true;
isDisplaySizeDirty = true;
comboBox.revalidate();
}It also handles a Font property change as well:
else if ( propertyName.equals( "font" ) ) {
listBox.setFont( comboBox.getFont() );
if ( editor != null ) {
editor.setFont( comboBox.getFont() );
isMinimumSizeDirty = true;
comboBox.validate();
}but notice that the isDisplaySizeDirty flag is missing. This would seem to be a bug (but I don't know why two flags are required).
Anyway, the following change to your code seems to work:
// component.setSize(transform(component.getSize()));
if (component instanceof JComponent)
((JComponent)component).updateUI();
}
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