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/*******************************************************************************
* Copyright (c) 2000, 2013 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.controlexample;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Spinner;
import org.eclipse.swt.widgets.Widget;
abstract class RangeTab extends Tab {
/* Style widgets added to the "Style" group */
Button horizontalButton, verticalButton;
boolean orientationButtons = true;
/* Scale widgets added to the "Control" group */
Spinner minimumSpinner, selectionSpinner, maximumSpinner;
/**
* Creates the Tab within a given instance of ControlExample.
*/
RangeTab(ControlExample instance) {
super(instance);
}
/**
* Creates the "Control" widget children.
*/
@Override
void createControlWidgets () {
/* Create controls specific to this example */
createMinimumGroup ();
createMaximumGroup ();
createSelectionGroup ();
}
/**
* Create a group of widgets to control the maximum
* attribute of the example widget.
*/
void createMaximumGroup() {
/* Create the group */
Group maximumGroup = new Group (controlGroup, SWT.NONE);
maximumGroup.setLayout (new GridLayout ());
maximumGroup.setText (ControlExample.getResourceString("Maximum"));
maximumGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
/* Create a Spinner widget */
maximumSpinner = new Spinner (maximumGroup, SWT.BORDER);
maximumSpinner.setMaximum (100000);
maximumSpinner.setSelection (getDefaultMaximum());
maximumSpinner.setPageIncrement (100);
maximumSpinner.setIncrement (1);
maximumSpinner.setLayoutData (new GridData (SWT.FILL, SWT.CENTER, true, false));
/* Add the listeners */
maximumSpinner.addSelectionListener(widgetSelectedAdapter(event -> setWidgetMaximum ()));
}
/**
* Create a group of widgets to control the minimum
* attribute of the example widget.
*/
void createMinimumGroup() {
/* Create the group */
Group minimumGroup = new Group (controlGroup, SWT.NONE);
minimumGroup.setLayout (new GridLayout ());
minimumGroup.setText (ControlExample.getResourceString("Minimum"));
minimumGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
/* Create a Spinner widget */
minimumSpinner = new Spinner (minimumGroup, SWT.BORDER);
minimumSpinner.setMaximum (100000);
minimumSpinner.setSelection(getDefaultMinimum());
minimumSpinner.setPageIncrement (100);
minimumSpinner.setIncrement (1);
minimumSpinner.setLayoutData (new GridData (SWT.FILL, SWT.CENTER, true, false));
/* Add the listeners */
minimumSpinner.addSelectionListener (widgetSelectedAdapter(event -> setWidgetMinimum ()));
}
/**
* Create a group of widgets to control the selection
* attribute of the example widget.
*/
void createSelectionGroup() {
/* Create the group */
Group selectionGroup = new Group(controlGroup, SWT.NONE);
selectionGroup.setLayout(new GridLayout());
GridData gridData = new GridData(SWT.FILL, SWT.BEGINNING, false, false);
selectionGroup.setLayoutData(gridData);
selectionGroup.setText(ControlExample.getResourceString("Selection"));
/* Create a Spinner widget */
selectionSpinner = new Spinner (selectionGroup, SWT.BORDER);
selectionSpinner.setMaximum (100000);
selectionSpinner.setSelection (getDefaultSelection());
selectionSpinner.setPageIncrement (100);
selectionSpinner.setIncrement (1);
selectionSpinner.setLayoutData (new GridData (SWT.FILL, SWT.CENTER, true, false));
/* Add the listeners */
selectionSpinner.addSelectionListener(widgetSelectedAdapter(event -> setWidgetSelection ()));
}
/**
* Creates the "Style" group.
*/
@Override
void createStyleGroup () {
super.createStyleGroup ();
/* Create the extra widgets */
if (orientationButtons) {
horizontalButton = new Button (styleGroup, SWT.RADIO);
horizontalButton.setText ("SWT.HORIZONTAL");
verticalButton = new Button (styleGroup, SWT.RADIO);
verticalButton.setText ("SWT.VERTICAL");
}
borderButton = new Button (styleGroup, SWT.CHECK);
borderButton.setText ("SWT.BORDER");
}
/**
* Sets the state of the "Example" widgets.
*/
@Override
void setExampleWidgetState () {
super.setExampleWidgetState ();
if (!instance.startup) {
setWidgetMinimum ();
setWidgetMaximum ();
setWidgetSelection ();
}
Widget [] widgets = getExampleWidgets ();
if (widgets.length != 0) {
if (orientationButtons) {
horizontalButton.setSelection ((widgets [0].getStyle () & SWT.HORIZONTAL) != 0);
verticalButton.setSelection ((widgets [0].getStyle () & SWT.VERTICAL) != 0);
}
borderButton.setEnabled(false);
}
}
/**
* Gets the default maximum of the "Example" widgets.
*/
abstract int getDefaultMaximum ();
/**
* Gets the default minimim of the "Example" widgets.
*/
abstract int getDefaultMinimum ();
/**
* Gets the default selection of the "Example" widgets.
*/
abstract int getDefaultSelection ();
/**
* Sets the maximum of the "Example" widgets.
*/
abstract void setWidgetMaximum ();
/**
* Sets the minimim of the "Example" widgets.
*/
abstract void setWidgetMinimum ();
/**
* Sets the selection of the "Example" widgets.
*/
abstract void setWidgetSelection ();
}
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