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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.examples.controlexample;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.events.*;
class SashTab extends Tab {
/* Example widgets and groups that contain them */
Sash hSash, vSash;
Composite sashComp;
Group sashGroup;
List list1, list2, list3;
Text text;
Button smoothButton;
static String [] ListData0 = {ControlExample.getResourceString("ListData0_0"),
ControlExample.getResourceString("ListData0_1"),
ControlExample.getResourceString("ListData0_2"),
ControlExample.getResourceString("ListData0_3"),
ControlExample.getResourceString("ListData0_4"),
ControlExample.getResourceString("ListData0_5"),
ControlExample.getResourceString("ListData0_6"),
ControlExample.getResourceString("ListData0_7"),
ControlExample.getResourceString("ListData0_8")};
static String [] ListData1 = {ControlExample.getResourceString("ListData1_0"),
ControlExample.getResourceString("ListData1_1"),
ControlExample.getResourceString("ListData1_2"),
ControlExample.getResourceString("ListData1_3"),
ControlExample.getResourceString("ListData1_4"),
ControlExample.getResourceString("ListData1_5"),
ControlExample.getResourceString("ListData1_6"),
ControlExample.getResourceString("ListData1_7"),
ControlExample.getResourceString("ListData1_8")};
/* Constants */
static final int SASH_WIDTH = 3;
static final int SASH_LIMIT = 20;
/**
* Creates the Tab within a given instance of ControlExample.
*/
SashTab(ControlExample instance) {
super(instance);
}
/**
* Creates the "Example" group.
*/
void createExampleGroup () {
super.createExampleGroup ();
exampleGroup.setLayout(new FillLayout());
/* Create a group for the sash widgets */
sashGroup = new Group (exampleGroup, SWT.NONE);
FillLayout layout = new FillLayout();
layout.marginHeight = layout.marginWidth = 5;
sashGroup.setLayout(layout);
sashGroup.setText ("Sash");
}
/**
* Creates the "Example" widgets.
*/
void createExampleWidgets () {
/*
* Create the page. This example does not use layouts.
*/
sashComp = new Composite(sashGroup, SWT.BORDER);
/* Create the list and text widgets */
list1 = new List (sashComp, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
list1.setItems (ListData0);
list2 = new List (sashComp, SWT.V_SCROLL | SWT.H_SCROLL | SWT.BORDER);
list2.setItems (ListData1);
text = new Text (sashComp, SWT.MULTI | SWT.BORDER);
text.setText (ControlExample.getResourceString("Multi_line"));
/* Create the sashes */
int style = getDefaultStyle();
if (smoothButton.getSelection()) style |= SWT.SMOOTH;
vSash = new Sash (sashComp, SWT.VERTICAL | style);
hSash = new Sash (sashComp, SWT.HORIZONTAL | style);
/* Add the listeners */
hSash.addSelectionListener (new SelectionAdapter () {
public void widgetSelected (SelectionEvent event) {
Rectangle rect = vSash.getParent().getClientArea();
event.y = Math.min (Math.max (event.y, SASH_LIMIT), rect.height - SASH_LIMIT);
if (event.detail != SWT.DRAG) {
hSash.setBounds (event.x, event.y, event.width, event.height);
layout ();
}
}
});
vSash.addSelectionListener (new SelectionAdapter () {
public void widgetSelected (SelectionEvent event) {
Rectangle rect = vSash.getParent().getClientArea();
event.x = Math.min (Math.max (event.x, SASH_LIMIT), rect.width - SASH_LIMIT);
if (event.detail != SWT.DRAG) {
vSash.setBounds (event.x, event.y, event.width, event.height);
layout ();
}
}
});
sashComp.addControlListener (new ControlAdapter () {
public void controlResized (ControlEvent event) {
resized ();
}
});
}
/**
* Creates the "Size" group. The "Size" group contains
* controls that allow the user to change the size of
* the example widgets.
*/
void createSizeGroup () {
}
/**
* Creates the "Style" group.
*/
void createStyleGroup() {
super.createStyleGroup ();
/* Create the extra widgets */
smoothButton = new Button (styleGroup, SWT.CHECK);
smoothButton.setText("SWT.SMOOTH");
}
void disposeExampleWidgets () {
sashComp.dispose();
sashComp = null;
}
/**
* Gets the "Example" widget children.
*/
Control [] getExampleWidgets () {
return new Control [] {hSash, vSash};
}
/**
* Gets the text for the tab folder item.
*/
String getTabText () {
return "Sash";
}
/**
* Layout the list and text widgets according to the new
* positions of the sashes..events.SelectionEvent
*/
void layout () {
Rectangle clientArea = sashComp.getClientArea ();
Rectangle hSashBounds = hSash.getBounds ();
Rectangle vSashBounds = vSash.getBounds ();
list1.setBounds (0, 0, vSashBounds.x, hSashBounds.y);
list2.setBounds (vSashBounds.x + vSashBounds.width, 0, clientArea.width - (vSashBounds.x + vSashBounds.width), hSashBounds.y);
text.setBounds (0, hSashBounds.y + hSashBounds.height, clientArea.width, clientArea.height - (hSashBounds.y + hSashBounds.height));
/**
* If the horizontal sash has been moved then the vertical
* sash is either too long or too short and its size must
* be adjusted.
*/
vSashBounds.height = hSashBounds.y;
vSash.setBounds (vSashBounds);
}
/**
* Sets the size of the "Example" widgets.
*/
void setExampleWidgetSize () {
sashGroup.layout (true);
}
/**
* Sets the state of the "Example" widgets.
*/
void setExampleWidgetState () {
super.setExampleWidgetState ();
smoothButton.setSelection ((hSash.getStyle () & SWT.SMOOTH) != 0);
}
/**
* Handle the shell resized event.
*/
void resized () {
/* Get the client area for the shell */
Rectangle clientArea = sashComp.getClientArea ();
/*
* Make list 1 half the width and half the height of the tab leaving room for the sash.
* Place list 1 in the top left quadrant of the tab.
*/
Rectangle list1Bounds = new Rectangle (0, 0, (clientArea.width - SASH_WIDTH) / 2, (clientArea.height - SASH_WIDTH) / 2);
list1.setBounds (list1Bounds);
/*
* Make list 2 half the width and half the height of the tab leaving room for the sash.
* Place list 2 in the top right quadrant of the tab.
*/
list2.setBounds (list1Bounds.width + SASH_WIDTH, 0, clientArea.width - (list1Bounds.width + SASH_WIDTH), list1Bounds.height);
/*
* Make the text area the full width and half the height of the tab leaving room for the sash.
* Place the text area in the bottom half of the tab.
*/
text.setBounds (0, list1Bounds.height + SASH_WIDTH, clientArea.width, clientArea.height - (list1Bounds.height + SASH_WIDTH));
/* Position the sashes */
vSash.setBounds (list1Bounds.width, 0, SASH_WIDTH, list1Bounds.height);
hSash.setBounds (0, list1Bounds.height, clientArea.width, SASH_WIDTH);
}
}
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