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/*******************************************************************************
* Copyright (c) 2000, 2016 Red Hat, Inc. 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
* Ian Pun <ipun@redhat.com> - addition of Color tab
*******************************************************************************/
package org.eclipse.swt.examples.controlexample;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import java.util.HashMap;
import java.util.Map.Entry;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
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.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Widget;
class ColorTab extends Tab {
Table colors;
Group colorsGroup;
HashMap <Integer, String> hmap = new HashMap <> ();
static final int namedColorEnd = 8;
static String [] columnTitles = {ControlExample.getResourceString("ColorTitle_0"),
ControlExample.getResourceString("ColorTitle_1"),
ControlExample.getResourceString("ColorTitle_2"),
ControlExample.getResourceString("ColorTitle_3")};
/* Size widgets added to the "Size" group */
Button packColumnsButton;
/**
* Creates the color tab within a given instance of ControlExample.
*/
ColorTab(ControlExample instance) {
super(instance);
addTableElements();
}
void addTableElements () {
hmap.put(SWT.COLOR_WHITE, "COLOR_WHITE");
hmap.put(SWT.COLOR_BLACK, "COLOR_BLACK");
hmap.put(SWT.COLOR_RED, "COLOR_RED");
hmap.put(SWT.COLOR_DARK_RED, "COLOR_DARK_RED");
hmap.put(SWT.COLOR_GREEN, "COLOR_GREEN");
hmap.put(SWT.COLOR_DARK_GREEN, "COLOR_DARK_GREEN");
hmap.put(SWT.COLOR_YELLOW, "COLOR_YELLOW");
hmap.put(SWT.COLOR_DARK_YELLOW, "COLOR_DARK_YELLOW");
hmap.put(SWT.COLOR_WIDGET_DARK_SHADOW, "COLOR_WIDGET_DARK_SHADOW");
hmap.put(SWT.COLOR_WIDGET_NORMAL_SHADOW, "COLOR_WIDGET_NORMAL_SHADOW");
hmap.put(SWT.COLOR_WIDGET_LIGHT_SHADOW, "COLOR_WIDGET_LIGHT_SHADOW");
hmap.put(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW, "COLOR_WIDGET_HIGHLIGHT_SHADOW");
hmap.put(SWT.COLOR_WIDGET_FOREGROUND, "COLOR_WIDGET_FOREGROUND");
hmap.put(SWT.COLOR_WIDGET_BACKGROUND, "COLOR_WIDGET_BACKGROUND");
hmap.put(SWT.COLOR_WIDGET_BORDER, "COLOR_WIDGET_BORDER");
hmap.put(SWT.COLOR_LIST_FOREGROUND, "COLOR_LIST_FOREGROUND");
hmap.put(SWT.COLOR_LIST_BACKGROUND, "COLOR_LIST_BACKGROUND");
hmap.put(SWT.COLOR_LIST_SELECTION, "COLOR_LIST_SELECTION");
hmap.put(SWT.COLOR_LIST_SELECTION_TEXT, "COLOR_LIST_SELECTION_TEXT");
hmap.put(SWT.COLOR_INFO_FOREGROUND, "COLOR_INFO_FOREGROUND");
hmap.put(SWT.COLOR_INFO_BACKGROUND, "COLOR_INFO_BACKGROUND");
hmap.put(SWT.COLOR_TITLE_FOREGROUND, "COLOR_TITLE_FOREGROUND");
hmap.put(SWT.COLOR_TITLE_BACKGROUND, "COLOR_TITLE_BACKGROUND");
hmap.put(SWT.COLOR_TITLE_BACKGROUND_GRADIENT, "COLOR_TITLE_BACKGROUND_GRADIENT");
hmap.put(SWT.COLOR_TITLE_INACTIVE_FOREGROUND, "COLOR_TITLE_INACTIVE_FOREGROUND");
hmap.put(SWT.COLOR_TITLE_INACTIVE_BACKGROUND, "COLOR_TITLE_INACTIVE_BACKGROUND");
hmap.put(SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT, "COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT");
hmap.put(SWT.COLOR_LINK_FOREGROUND, "COLOR_LINK_FOREGROUND");
}
/**
* Creates the "Example" group.
*/
@Override
void createExampleGroup () {
super.createExampleGroup ();
/* Create a group for the list */
colorsGroup = new Group (exampleGroup, SWT.NONE);
colorsGroup.setLayout (new GridLayout ());
colorsGroup.setLayoutData (new GridData (SWT.FILL, SWT.FILL, true, true));
colorsGroup.setText ("Color");
}
/**
* Creates the "Example" widgets.
*/
@Override
void createExampleWidgets () {
/* Create the color table widget */
/* Compute the widget style */
int style = getDefaultStyle();
colors = new Table (colorsGroup, style);
colors.setHeaderVisible(true);
// fill in the table.
for (String columnTitle : columnTitles) {
TableColumn tableColumn = new TableColumn(colors, SWT.NONE);
tableColumn.setText(columnTitle);
tableColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitle));
}
// fill in the Data. Put an empty line inbetween "Named" and "SWT" colors.
boolean emptyLineFlag=false;
for (Entry<Integer, String> entry : hmap.entrySet()) {
Integer key = entry.getKey();
String value = entry.getValue();
if (!emptyLineFlag) {
TableItem item = new TableItem(colors, SWT.NONE);
item.setText(value);
item.setText(0, value);
item.setText(1, "Named");
item.setText(2, getRGBcolor(key));
// the spaces will help the color cell be large enough to see
item.setText(3, " ");
item.setBackground(3, display.getSystemColor(key));
if (key == namedColorEnd) {
TableItem emptyItem = new TableItem(colors, SWT.NONE);
emptyItem.setText("");
emptyLineFlag = true;
}
} else {
TableItem item = new TableItem(colors, SWT.NONE);
item.setText(value);
item.setText(0, value + " ");
item.setText(1, "System ");
item.setText(2, getRGBcolor(key) + " ");
// the spaces will help the color cell be large enough to see
item.setText(3, " ");
item.setBackground(3, display.getSystemColor(key));
}
}
for (int i = 0; i < columnTitles.length; i++) {
colors.getColumn(i).pack();
}
}
/**
* Gets the "Example" widget children.
*/
@Override
Widget [] getExampleWidgets () {
return new Widget [] {colors};
}
/**
* Gets the Tab name.
*/
@Override
String getTabText () {
return "Color";
}
/**
* Colors only needs Orientation, Size, and Other groups. Everything else will be removed.
*/
@Override
void createSizeGroup () {
super.createSizeGroup();
packColumnsButton = new Button (sizeGroup, SWT.PUSH);
packColumnsButton.setText (ControlExample.getResourceString("Pack_Columns"));
packColumnsButton.addSelectionListener(widgetSelectedAdapter(event -> {
packColumns ();
setExampleWidgetSize ();
}));
}
void packColumns () {
int columnCount = colors.getColumnCount();
for (int i = 0; i < columnCount; i++) {
TableColumn tableColumn = colors.getColumn(i);
tableColumn.pack();
}
}
String getRGBcolor(int id){
Color color = display.getSystemColor(id);
return String.format("(%d,%d,%d,%d)", color.getRed(), color.getGreen(),
color.getBlue(), color.getAlpha());
}
@Override
boolean rtlSupport() {
return false;
}
/**
* Override the "Control" group. The "Control" group
* is typically the right hand column in the tab.
*/
@Override
void createControlGroup () {
controlGroup = new Group (tabFolderPage, SWT.NONE);
controlGroup.setLayout (new GridLayout (2, true));
controlGroup.setLayoutData (new GridData(SWT.FILL, SWT.FILL, false, false));
controlGroup.setText (ControlExample.getResourceString("Parameters"));
/* Create individual groups inside the "Control" group */
createOtherGroup ();
createSetGetGroup();
createSizeGroup ();
createOrientationGroup ();
SelectionListener selectionListener = widgetSelectedAdapter(event -> {
if ((event.widget.getStyle () & SWT.RADIO) != 0) {
if (!((Button) event.widget).getSelection ()) return;
}
if (!handleTextDirection (event.widget)) {
recreateExampleWidgets ();
}
});
// attach listeners to the Orientation buttons
rtlButton.addSelectionListener (selectionListener);
ltrButton.addSelectionListener (selectionListener);
defaultOrietationButton.addSelectionListener (selectionListener);
}
}
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