tools.vitruv.change.testutils.changevisualization.ui.LabelValuePanel Maven / Gradle / Ivy

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Utilities for visualization changes on models
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package tools.vitruv.change.testutils.changevisualization.ui;

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.InputEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.util.List;
import java.util.Vector;

import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

import tools.vitruv.change.testutils.changevisualization.ChangeVisualizationUI;

/**
 * Displays a String array in a scrollable UI. The string array must be of size [x][2].
 * The values at [x][0] are used as label text on the left, [x][1] are displayed in textFields
 * on the right. The usual strg+mousewheel zoom behavior is implemented
 * 
 * @author Andreas Loeffler
 */
public class LabelValuePanel extends JScrollPane{
	
	/**
	 * Serialization id, serialization not used
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Implements the usual strg + mousewheel zoom behaviour
	 */
	private final MouseWheelListener mwl=new MouseWheelListener() {
		@Override
		public void mouseWheelMoved(MouseWheelEvent e) {	
			//Implements the usual strg + mousewheel behaviour for zooming
			if ((e.getModifiersEx() & InputEvent.CTRL_DOWN_MASK) == 0) return;
			if(e.getWheelRotation()<=-1) {
				for(JLabel label:getAllLabels()) {
					float newSize=label.getFont().getSize()+2;
					if(newSize>30) newSize=30;
					label.setFont(label.getFont().deriveFont(newSize));					
				}
				for(JTextField field:getAllFields()) {
					float newSize=field.getFont().getSize()+2;
					if(newSize>30) newSize=30;
					field.setFont(field.getFont().deriveFont(newSize));					
				}
			}else if(e.getWheelRotation()>=1) {
				for(JLabel label:getAllLabels()) {
					float newSize=label.getFont().getSize()-2;
					if(newSize<5) newSize=5;
					label.setFont(label.getFont().deriveFont(newSize));					
				}
				for(JTextField field:getAllFields()) {
					float newSize=field.getFont().getSize()-2;
					if(newSize<5) newSize=5;
					field.setFont(field.getFont().deriveFont(newSize));					
				}				
			}
		}	
	};
	
	/**
	 * List of all added JTextFields used for mouse wheel zooming
	 */
	private List allFields=new Vector();
	
	/**
	 * List of all added JLabels used for mouse wheel zooming
	 */
	private List allLabels=new Vector();

	/**
	 * Constructs an LabelValuePanel visualizing a string array.
	 * 
	 * The string array must be of size [x][2].
	 * The values at [x][0] are used as label text on the left, [x][1] are displayed in textFields
	 * on the right.
	 * 
	 * @param array The array to visualize
	 */
	public LabelValuePanel(String[][] array) {
		//Create the basic layout and panel structure
		JPanel pane = new JPanel(new BorderLayout());
		JPanel left = new JPanel(new GridLayout(1,1));
		left.setBorder(new EmptyBorder(5,5,5,5));
		JPanel center=new JPanel(new GridLayout(1,1));
		center.setBorder(new EmptyBorder(5,5,5,5));			
		pane.add(left,BorderLayout.WEST);
		pane.add(center,BorderLayout.CENTER);

		for(int n=0;n getAllFields() {
		return allFields;
	}
	
	/**
	 * Return all labels (left components)
	 * @return The labels
	 */
	private List getAllLabels() {
		return allLabels;
	}

	/**
	 * Create a line in the center and left panel with the given texts
	 * 
	 * @param center The center panel
	 * @param left The left panel
	 * @param labelText The text for the label
	 * @param fieldText The text for the field
	 */
	private void createLine(JPanel center,JPanel left,String labelText,String fieldText) {
		//Create the label
		JLabel label=new JLabel(labelText,JLabel.RIGHT);
		label.setFont(ChangeVisualizationUI.DEFAULT_LABEL_FONT);
		allLabels.add(label);
		
		//Create the field
		JTextField field=new JTextField(fieldText);
		field.setEditable(false);
		field.setFont(ChangeVisualizationUI.DEFAULT_TEXTFIELD_FONT);
		allFields.add(field);
		
		//Add label to left and increase the layout dimension
		((GridLayout)left.getLayout()).setRows(((GridLayout)left.getLayout()).getRows()+1);
		left.add(label);

		//Add field to center and increase the layout dimension
		((GridLayout)center.getLayout()).setRows(((GridLayout)center.getLayout()).getRows()+1);
		center.add(field);
	}	

}