Java tutorial
/* * cbg.editor Eclipse plugin * Copyright(c) 2002, Chris Grindstaff * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package com.rohanclan.afae.prefs; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.preference.ColorFieldEditor; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; public class BooleanColorFieldEditor extends ColorFieldEditor { protected Button check; private String checkText; private String checkPreference; public BooleanColorFieldEditor() { super(); } public BooleanColorFieldEditor(String name, String labelText, String checkPref, String checkText, Composite parent) { super(name, labelText, parent); this.checkText = checkText; this.checkPreference = checkPref; if (checkText != null) getCheck(parent).setText(checkText); } protected void adjustForNumColumns(int numColumns) { ((GridData) super.getChangeControl(check.getParent()).getLayoutData()).horizontalSpan = 1; ((GridData) check.getLayoutData()).horizontalSpan = 1; } protected void doFillIntoGrid(Composite parent, int numColumns) { Control label = getLabelControl(parent); GridData gd = new GridData(); gd.horizontalSpan = 1; label.setLayoutData(gd); Button colorButton = super.getChangeControl(parent); gd = new GridData(); gd.horizontalSpan = 1; // gd.heightHint = convertVerticalDLUsToPixels(colorButton, // IDialogConstants.BUTTON_HEIGHT); int widthHint = convertHorizontalDLUsToPixels(colorButton, IDialogConstants.BUTTON_WIDTH); gd.widthHint = Math.max(widthHint, colorButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x); colorButton.setLayoutData(gd); gd = new GridData(); gd.horizontalSpan = 1; getCheck(parent).setLayoutData(gd); if (checkText != null) check.setText(checkText); } protected void doLoad() { super.doLoad(); if (check == null) return; check.setSelection(getPreferenceStore().getBoolean(checkPreference)); } protected void doLoadDefault() { super.doLoadDefault(); if (check == null) return; check.setSelection(getPreferenceStore().getDefaultBoolean(checkPreference)); } protected void doStore() { super.doStore(); getPreferenceStore().setValue(checkPreference, check.getSelection()); } public int getNumberOfControls() { return super.getNumberOfControls() + 1; } protected Button getCheck(Composite parent) { if (check == null) { check = new Button(parent, SWT.CHECK); if (checkText != null) check.setText(checkText); } return check; } public void setEnabled(boolean enabled, Composite parent) { super.setEnabled(enabled, parent); check.setEnabled(enabled); } }