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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.application.options.codeStyle;
import com.intellij.lang.Language;
import com.intellij.psi.codeStyle.CodeStyleSettings;
import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
/**
* Can be used for languages which do not use standard "Wrapping and Braces" panel.
* <p>
* <strong>Note</strong>: besides adding the panel to UI it is necessary to make sure that language's own
* <code>LanguageCodeStyleSettingsProvider</code> explicitly supports RIGHT_MARGIN field in <code>customizeSettings()</code>
* method as shown below:
* <pre>
* public void customizeSettings(...) {
* if (settingsType == SettingsType.WRAPPING_AND_BRACES_SETTINGS) {
* consumer.showStandardOptions("RIGHT_MARGIN");
* }
* }
* </pre>
* @author Rustam Vishnyakov
*/
public class RightMarginForm {
private JTextField myRightMarginField;
private JCheckBox myDefaultGeneralCheckBox;
private JPanel myTopPanel;
private final Language myLanguage;
private final int myDefaultRightMargin;
public RightMarginForm(@NotNull Language language, @NotNull CodeStyleSettings settings) {
myLanguage = language;
myDefaultRightMargin = settings.RIGHT_MARGIN;
myDefaultGeneralCheckBox.addChangeListener(new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
if (myDefaultGeneralCheckBox.isSelected()) {
myRightMarginField.setText(Integer.toString(myDefaultRightMargin));
myRightMarginField.setEnabled(false);
}
else {
myRightMarginField.setEnabled(true);
}
}
});
}
public void reset(@NotNull CodeStyleSettings settings) {
CommonCodeStyleSettings langSettings = settings.getCommonSettings(myLanguage);
if (langSettings != settings && langSettings.RIGHT_MARGIN >= 0) {
myDefaultGeneralCheckBox.setSelected(false);
myRightMarginField.setText(Integer.toString(langSettings.RIGHT_MARGIN));
}
else {
myDefaultGeneralCheckBox.setSelected(true);
myRightMarginField.setText(Integer.toString(settings.RIGHT_MARGIN));
if (langSettings == settings) {
myDefaultGeneralCheckBox.setEnabled(false);
myRightMarginField.setEnabled(false);
}
}
}
public void apply(@NotNull CodeStyleSettings settings) {
CommonCodeStyleSettings langSettings = settings.getCommonSettings(myLanguage);
if (langSettings != settings) {
if (myDefaultGeneralCheckBox.isSelected()) {
langSettings.RIGHT_MARGIN = -1;
}
else {
langSettings.RIGHT_MARGIN = getFieldRightMargin(settings.RIGHT_MARGIN);
}
}
}
public boolean isModified(@NotNull CodeStyleSettings settings) {
CommonCodeStyleSettings langSettings = settings.getCommonSettings(myLanguage);
if (myDefaultGeneralCheckBox.isSelected()) {
return langSettings.RIGHT_MARGIN >= 0;
}
else {
return langSettings.RIGHT_MARGIN != getFieldRightMargin(settings.RIGHT_MARGIN);
}
}
private int getFieldRightMargin(int fallBackValue) {
String strValue = myRightMarginField.getText();
if (!strValue.trim().isEmpty()) {
try {
return Integer.parseInt(strValue);
}
catch (NumberFormatException e) {
myRightMarginField.setText(Integer.toString(fallBackValue));
}
}
return fallBackValue;
}
public JPanel getTopPanel() {
return myTopPanel;
}
}
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