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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.openapi.editor.textarea;
import com.intellij.openapi.editor.*;
import com.intellij.openapi.editor.event.CaretListener;
import com.intellij.openapi.editor.markup.TextAttributes;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import javax.swing.text.BadLocationException;
import javax.swing.text.JTextComponent;
import java.util.Collections;
import java.util.List;
/**
* @author yole
*/
public class TextComponentCaretModel implements CaretModel {
private final JTextComponent myTextComponent;
private final TextComponentEditor myEditor;
private final Caret myCaret;
public TextComponentCaretModel(@NotNull JTextComponent textComponent, @NotNull TextComponentEditor editor) {
myTextComponent = textComponent;
myEditor = editor;
myCaret = new TextComponentCaret(editor);
}
@Override
public void moveCaretRelatively(final int columnShift,
final int lineShift,
final boolean withSelection, final boolean blockSelection, final boolean scrollToCaret) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public void moveToLogicalPosition(@NotNull final LogicalPosition pos) {
moveToOffset(myEditor.logicalPositionToOffset(pos), false);
}
@Override
public void moveToVisualPosition(@NotNull final VisualPosition pos) {
moveToLogicalPosition(myEditor.visualToLogicalPosition(pos));
}
@Override
public void moveToOffset(int offset) {
moveToOffset(offset, false);
}
@Override
public void moveToOffset(final int offset, boolean locateBeforeSoftWrap) {
myTextComponent.setCaretPosition(Math.min(offset, myTextComponent.getText().length()));
}
@Override
public boolean isUpToDate() {
return true;
}
@Override
@NotNull
public LogicalPosition getLogicalPosition() {
int caretPos = myTextComponent.getCaretPosition();
int line;
int lineStart;
if (myTextComponent instanceof JTextArea) {
final JTextArea textArea = (JTextArea)myTextComponent;
try {
line = textArea.getLineOfOffset(caretPos);
lineStart = textArea.getLineStartOffset(line);
}
catch (BadLocationException e) {
throw new RuntimeException(e);
}
}
else {
line = 0;
lineStart = 0;
}
return new LogicalPosition(line, caretPos - lineStart);
}
@Override
@NotNull
public VisualPosition getVisualPosition() {
LogicalPosition pos = getLogicalPosition();
return new VisualPosition(pos.line, pos.column);
}
@Override
public int getOffset() {
return myTextComponent.getCaretPosition();
}
@Override
public void addCaretListener(@NotNull final CaretListener listener) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public void removeCaretListener(@NotNull final CaretListener listener) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public int getVisualLineStart() {
return 0;
}
@Override
public int getVisualLineEnd() {
return 0;
}
@Override
public TextAttributes getTextAttributes() {
return null;
}
@Override
public boolean supportsMultipleCarets() {
return false;
}
@NotNull
@Override
public Caret getCurrentCaret() {
return myCaret;
}
@NotNull
@Override
public Caret getPrimaryCaret() {
return myCaret;
}
@Override
public int getCaretCount() {
return 1;
}
@NotNull
@Override
public List<Caret> getAllCarets() {
return Collections.singletonList(myCaret);
}
@Nullable
@Override
public Caret getCaretAt(@NotNull VisualPosition pos) {
return myCaret.getVisualPosition().equals(pos) ? myCaret : null;
}
@Nullable
@Override
public Caret addCaret(@NotNull VisualPosition pos) {
return null;
}
@Override
public boolean removeCaret(@NotNull Caret caret) {
return false;
}
@Override
public void removeSecondaryCarets() {
}
@Override
public void setCaretsAndSelections(@NotNull List<CaretState> caretStates) {
throw new UnsupportedOperationException("Multiple carets are not supported");
}
@NotNull
@Override
public List<CaretState> getCaretsAndSelections() {
throw new UnsupportedOperationException("Multiple carets are not supported");
}
@Override
public void runForEachCaret(@NotNull CaretAction action) {
action.perform(myCaret);
}
@Override
public void runForEachCaret(@NotNull CaretAction action, boolean reverseOrder) {
action.perform(myCaret);
}
@Override
public void runBatchCaretOperation(@NotNull Runnable runnable) {
runnable.run();
}
}
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