Java tutorial
/* * Copyright (c) 2004-2011 Marco Maccaferri and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Marco Maccaferri - initial API and implementation */ package org.eclipsetrader.ui.internal.preferences; import org.eclipse.jface.preference.ColorSelector; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.themes.ITheme; import org.eclipse.ui.themes.IThemeManager; import org.eclipsetrader.ui.internal.UIActivator; public class WatchListPreferencesPage extends PreferencePage implements IWorkbenchPreferencePage { private Button alternateBackground; private Button enableTickDecorator; private ColorSelector positiveTickColor; private ColorSelector negativeTickColor; private Button drawTickOutline; private Button fadeToBackground; private ITheme theme; public WatchListPreferencesPage() { } /* (non-Javadoc) * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench) */ @Override public void init(IWorkbench workbench) { setPreferenceStore(UIActivator.getDefault().getPreferenceStore()); IThemeManager themeManager = PlatformUI.getWorkbench().getThemeManager(); theme = themeManager.getCurrentTheme(); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite) */ @Override protected Control createContents(Composite parent) { Composite content = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(); gridLayout.numColumns = 2; gridLayout.marginWidth = gridLayout.marginHeight = 0; content.setLayout(gridLayout); alternateBackground = new Button(content, SWT.CHECK); alternateBackground.setText(Messages.WatchListPreferencesPage_AlternateRowsBackground); alternateBackground.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1)); enableTickDecorator = new Button(content, SWT.CHECK); enableTickDecorator.setText(Messages.WatchListPreferencesPage_EnableHilights); enableTickDecorator.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1)); enableTickDecorator.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { updateControlsEnablement(); } }); Label label = new Label(content, SWT.NONE); label.setText(Messages.WatchListPreferencesPage_PositiveHighlight); label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); ((GridData) label.getLayoutData()).horizontalIndent = convertHorizontalDLUsToPixels(18); positiveTickColor = new ColorSelector(content); label = new Label(content, SWT.NONE); label.setText(Messages.WatchListPreferencesPage_NegativeHighlight); label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); ((GridData) label.getLayoutData()).horizontalIndent = convertHorizontalDLUsToPixels(18); negativeTickColor = new ColorSelector(content); drawTickOutline = new Button(content, SWT.CHECK); drawTickOutline.setText(Messages.WatchListPreferencesPage_HilightOutline); drawTickOutline.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1)); ((GridData) drawTickOutline.getLayoutData()).horizontalIndent = convertHorizontalDLUsToPixels(18); fadeToBackground = new Button(content, SWT.CHECK); fadeToBackground.setText(Messages.WatchListPreferencesPage_FadeToBackground); fadeToBackground.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false, 2, 1)); ((GridData) fadeToBackground.getLayoutData()).horizontalIndent = convertHorizontalDLUsToPixels(18); IPreferenceStore preferenceStore = getPreferenceStore(); alternateBackground .setSelection(preferenceStore.getBoolean(UIActivator.PREFS_WATCHLIST_ALTERNATE_BACKGROUND)); enableTickDecorator .setSelection(preferenceStore.getBoolean(UIActivator.PREFS_WATCHLIST_ENABLE_TICK_DECORATORS)); positiveTickColor .setColorValue(theme.getColorRegistry().getRGB(UIActivator.PREFS_WATCHLIST_POSITIVE_TICK_COLOR)); negativeTickColor .setColorValue(theme.getColorRegistry().getRGB(UIActivator.PREFS_WATCHLIST_NEGATIVE_TICK_COLOR)); drawTickOutline.setSelection(preferenceStore.getBoolean(UIActivator.PREFS_WATCHLIST_DRAW_TICK_OUTLINE)); fadeToBackground.setSelection(preferenceStore.getBoolean(UIActivator.PREFS_WATCHLIST_FADE_TO_BACKGROUND)); updateControlsEnablement(); return content; } private void updateControlsEnablement() { positiveTickColor.setEnabled(enableTickDecorator.getSelection()); negativeTickColor.setEnabled(enableTickDecorator.getSelection()); drawTickOutline.setEnabled(enableTickDecorator.getSelection()); fadeToBackground.setEnabled(enableTickDecorator.getSelection()); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#performDefaults() */ @Override protected void performDefaults() { IPreferenceStore preferenceStore = getPreferenceStore(); ITheme theme = getTheme(); alternateBackground .setSelection(preferenceStore.getDefaultBoolean(UIActivator.PREFS_WATCHLIST_ALTERNATE_BACKGROUND)); enableTickDecorator.setSelection( preferenceStore.getDefaultBoolean(UIActivator.PREFS_WATCHLIST_ENABLE_TICK_DECORATORS)); drawTickOutline .setSelection(preferenceStore.getDefaultBoolean(UIActivator.PREFS_WATCHLIST_DRAW_TICK_OUTLINE)); fadeToBackground .setSelection(preferenceStore.getDefaultBoolean(UIActivator.PREFS_WATCHLIST_FADE_TO_BACKGROUND)); positiveTickColor .setColorValue(theme.getColorRegistry().getRGB(UIActivator.PREFS_WATCHLIST_POSITIVE_TICK_COLOR)); negativeTickColor .setColorValue(theme.getColorRegistry().getRGB(UIActivator.PREFS_WATCHLIST_NEGATIVE_TICK_COLOR)); updateControlsEnablement(); super.performDefaults(); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#performOk() */ @Override public boolean performOk() { performApply(); return super.performOk(); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#performApply() */ @Override protected void performApply() { IPreferenceStore preferenceStore = getPreferenceStore(); ITheme theme = getTheme(); preferenceStore.setValue(UIActivator.PREFS_WATCHLIST_ALTERNATE_BACKGROUND, alternateBackground.getSelection()); preferenceStore.setValue(UIActivator.PREFS_WATCHLIST_ENABLE_TICK_DECORATORS, enableTickDecorator.getSelection()); preferenceStore.setValue(UIActivator.PREFS_WATCHLIST_DRAW_TICK_OUTLINE, drawTickOutline.getSelection()); preferenceStore.setValue(UIActivator.PREFS_WATCHLIST_FADE_TO_BACKGROUND, fadeToBackground.getSelection()); theme.getColorRegistry().put(UIActivator.PREFS_WATCHLIST_POSITIVE_TICK_COLOR, positiveTickColor.getColorValue()); theme.getColorRegistry().put(UIActivator.PREFS_WATCHLIST_NEGATIVE_TICK_COLOR, negativeTickColor.getColorValue()); } public ITheme getTheme() { return theme; } public void setTheme(ITheme theme) { this.theme = theme; } }