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/*
* Copyright 2000-2012 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.arrangement.action;
import com.intellij.application.options.codeStyle.arrangement.match.ArrangementMatchingRulesControl;
import com.intellij.application.options.codeStyle.arrangement.match.ArrangementMatchingRulesModel;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.project.DumbAware;
import org.jetbrains.annotations.NotNull;
import javax.swing.*;
import java.util.ArrayList;
import java.util.List;
/**
* @author Denis Zhdanov
* @since 11/13/12 7:17 PM
*/
public abstract class AbstractMoveArrangementRuleAction extends AbstractArrangementRuleAction implements DumbAware {
@Override
public void update(AnActionEvent e) {
ArrangementMatchingRulesControl control = ArrangementMatchingRulesControl.KEY.getData(e.getDataContext());
if (control == null) {
e.getPresentation().setEnabled(false);
return;
}
final List<int[]> mappings = new ArrayList<int[]>();
fillMappings(control, mappings);
for (int[] mapping : mappings) {
if (mapping[0] != mapping[1]) {
e.getPresentation().setEnabled(true);
return;
}
}
e.getPresentation().setEnabled(false);
}
@Override
public void actionPerformed(AnActionEvent e) {
final ArrangementMatchingRulesControl control = ArrangementMatchingRulesControl.KEY.getData(e.getDataContext());
if (control == null) {
return;
}
final int editing = control.getEditingRow() - 1;
control.runOperationIgnoreSelectionChange(new Runnable() {
@Override
public void run() {
control.hideEditor();
final List<int[]> mappings = new ArrayList<int[]>();
fillMappings(control, mappings);
if (mappings.isEmpty()) {
return;
}
int newRowToEdit = editing;
ArrangementMatchingRulesModel model = control.getModel();
Object value;
int from;
int to;
for (int[] pair : mappings) {
from = pair[0];
to = pair[1];
if (from != to) {
value = model.getElementAt(from);
model.removeRow(from);
model.insert(to, value);
if (newRowToEdit == from) {
newRowToEdit = to;
}
}
}
ListSelectionModel selectionModel = control.getSelectionModel();
for (int[] pair : mappings) {
selectionModel.addSelectionInterval(pair[1], pair[1]);
}
int visibleRow = -1;
if (newRowToEdit >= 0) {
control.showEditor(newRowToEdit);
visibleRow = newRowToEdit;
}
else if (!mappings.isEmpty()) {
visibleRow = mappings.get(0)[1];
}
if (visibleRow != -1) {
scrollRowToVisible(control, visibleRow);
}
}
});
control.repaintRows(0, control.getModel().getSize() - 1, true);
}
protected abstract void fillMappings(@NotNull ArrangementMatchingRulesControl control, @NotNull List<int[]> mappings);
}
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