package org.swtchart.ext.internal.properties;
import org.eclipse.jface.preference.ColorSelector;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Spinner;
import org.swtchart.Constants;
import org.swtchart.IAxis;
import org.swtchart.IDisposeListener;
import org.swtchart.IAxis.Direction;
import org.swtchart.ext.InteractiveChart;
/**
* The tick page on properties dialog.
*/
public class AxisTickPage extends AbstractSelectorPage {
/** the key for axis tick font */
private static final String AXIS_TICK_FONT = "org.swtchart.axistick.font";
/** the key for axis tick foreground */
private static final String AXIS_TICK_FOREGROUND = "org.swtchart.axistick.foreground";
/** the axes */
private IAxis[] axes;
/** the show tick button */
protected Button showTickButton;
/** the label for font size */
private Label fontSizeLabel;
/** the spinner for font size */
protected Spinner fontSizeSpinner;
/** the foreground label */
private Label foregroundLabel;
/** the foreground button */
protected ColorSelector foregroundButton;
/** the states indicating the visibility of axis ticks */
protected boolean[] visibilityStates;
/** the font sizes */
protected int[] fontSizes;
/** the foreground colors */
protected RGB[] foregroundColors;
/**
* Constructor.
*
* @param chart
* the chart
* @param resources
* the properties resources
* @param direction
* the direction
* @param title
* the title
*/
public AxisTickPage(InteractiveChart chart, PropertiesResources resources,
Direction direction, String title) {
super(chart, resources, title, "Axes:");
if (direction == Direction.X) {
this.axes = chart.getAxisSet().getXAxes();
} else if (direction == Direction.Y) {
this.axes = chart.getAxisSet().getYAxes();
}
visibilityStates = new boolean[axes.length];
fontSizes = new int[axes.length];
foregroundColors = new RGB[axes.length];
}
/*
* @see AbstractSelectorPage#getListItems()
*/
@Override
protected String[] getListItems() {
String[] items = new String[axes.length];
for (int i = 0; i < items.length; i++) {
items[i] = String.valueOf(axes[i].getId());
}
return items;
}
/*
* @see AbstractSelectorPage#selectInitialValues()
*/
@Override
protected void selectInitialValues() {
for (int i = 0; i < axes.length; i++) {
visibilityStates[i] = axes[i].getTick().isVisible();
fontSizes[i] = axes[i].getTick().getFont().getFontData()[0]
.getHeight();
foregroundColors[i] = axes[i].getTick().getForeground().getRGB();
}
}
/*
* @see AbstractSelectorPage#updateControlSelections()
*/
@Override
protected void updateControlSelections() {
showTickButton.setSelection(visibilityStates[selectedIndex]);
setControlsEnable(visibilityStates[selectedIndex]);
fontSizeSpinner.setSelection(fontSizes[selectedIndex]);
foregroundButton.setColorValue(foregroundColors[selectedIndex]);
}
/*
* @see AbstractSelectorPage#addRightPanelContents(Composite)
*/
@Override
protected void addRightPanelContents(Composite parent) {
addTickPanel(parent);
}
/**
* Create the tick panel.
*
* @param parent
* the parent to add the tick panel
*/
private void addTickPanel(Composite parent) {
Composite group = new Composite(parent, SWT.NONE);
GridData gridData = new GridData();
gridData.horizontalSpan = 2;
group.setLayoutData(gridData);
group.setLayout(new GridLayout(2, false));
showTickButton = createCheckBoxControl(group, "Show tick");
showTickButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
boolean visible = showTickButton.getSelection();
visibilityStates[selectedIndex] = visible;
setControlsEnable(visible);
}
});
fontSizeLabel = createLabelControl(group, "Font size:");
fontSizeSpinner = createSpinnerControl(group, 8, 30);
fontSizeSpinner.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
fontSizes[selectedIndex] = fontSizeSpinner.getSelection();
}
});
foregroundLabel = createLabelControl(group, "Color:");
foregroundButton = createColorButtonControl(group);
foregroundButton.addListener(new IPropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
foregroundColors[selectedIndex] = foregroundButton
.getColorValue();
}
});
}
/**
* Sets the enable state of controls.
*
* @param enabled
* true if controls are enabled
*/
protected void setControlsEnable(boolean enabled) {
fontSizeLabel.setEnabled(enabled);
fontSizeSpinner.setEnabled(enabled);
foregroundLabel.setEnabled(enabled);
foregroundButton.setEnabled(enabled);
}
/*
* @see AbstractPreferencePage#apply()
*/
@Override
public void apply() {
for (int i = 0; i < axes.length; i++) {
axes[i].getTick().setVisible(visibilityStates[i]);
FontData fontData = axes[i].getTick().getFont().getFontData()[0];
fontData.setHeight(fontSizes[i]);
Font font = new Font(Display.getDefault(), fontData);
axes[i].getTick().setFont(font);
final String fontKey = AXIS_TICK_FONT + axes[i].getDirection()
+ axes[i].getId();
if (resources.getFont(fontKey) == null) {
axes[i].addDisposeListener(new IDisposeListener() {
public void disposed(Event e) {
resources.removeFont(fontKey);
}
});
}
resources.put(fontKey, font);
Color color = new Color(Display.getDefault(), foregroundColors[i]);
axes[i].getTick().setForeground(color);
final String colorKey = AXIS_TICK_FOREGROUND
+ axes[i].getDirection() + axes[i].getId();
if (resources.getColor(colorKey) == null) {
axes[i].addDisposeListener(new IDisposeListener() {
public void disposed(Event e) {
resources.removeColor(colorKey);
}
});
}
resources.put(colorKey, color);
}
}
/*
* @see PreferencePage#performDefaults()
*/
@Override
protected void performDefaults() {
visibilityStates[selectedIndex] = true;
fontSizes[selectedIndex] = Constants.SMALL_FONT_SIZE;
foregroundColors[selectedIndex] = Display.getDefault().getSystemColor(
SWT.COLOR_BLUE).getRGB();
updateControlSelections();
super.performDefaults();
}
}