/*
* Copyright 2000-2009 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.
*/
/*
* @author max
*/
package com.intellij.codeInsight.daemon.impl;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.LogicalPosition;
import com.intellij.openapi.util.ProperTextRange;
import org.jetbrains.annotations.NotNull;
import java.awt.*;
public abstract class VisibleHighlightingPassFactory {
@NotNull
public static ProperTextRange calculateVisibleRange(@NotNull Editor editor) {
Rectangle rect = editor.getScrollingModel().getVisibleArea();
LogicalPosition startPosition = editor.xyToLogicalPosition(new Point(rect.x, rect.y));
int visibleStart = editor.logicalPositionToOffset(startPosition);
LogicalPosition endPosition = editor.xyToLogicalPosition(new Point(rect.x + rect.width, rect.y + rect.height));
int visibleEnd = editor.logicalPositionToOffset(new LogicalPosition(endPosition.line + 1, 0));
return new ProperTextRange(visibleStart, Math.max(visibleEnd, visibleStart));
}
}