StyledTextFindReplaceTarget.java

/*
 * DBeaver - Universal Database Manager
 * Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
 *
 * 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 org.jkiss.dbeaver.ui.controls;

import org.eclipse.jface.text.IFindReplaceTarget;
import org.eclipse.jface.text.IFindReplaceTargetExtension;
import org.eclipse.jface.text.IFindReplaceTargetExtension3;
import org.eclipse.jface.text.IRegion;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.jkiss.dbeaver.Log;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

/**
 * Find/Replace target for StyledText
 */
public class StyledTextFindReplaceTarget implements IFindReplaceTarget, IFindReplaceTargetExtension, IFindReplaceTargetExtension3 {

    private static final Log log = Log.getLog(StyledTextFindReplaceTarget.class);

    private final StyledText text;
    private Pattern searchPattern;
    private Color scopeHighlightColor;
    private boolean replaceAll;

    public StyledTextFindReplaceTarget(StyledText text) {
        this.text = text;
    }

    @Override
    public boolean canPerformFind()
    {
        return true;
    }

    @Override
    public int findAndSelect(int widgetOffset, String findString, boolean searchForward, boolean caseSensitive, boolean wholeWord)
    {
        return findAndSelect(widgetOffset, findString, searchForward, caseSensitive, wholeWord, false);
    }

    @Override
    public Point getSelection()
    {
        return text.getSelection();
    }

    @Override
    public String getSelectionText()
    {
        return text.getSelectionText();
    }

    @Override
    public boolean isEditable()
    {
        return text.getEditable();
    }

    @Override
    public void replaceSelection(String text)
    {
        replaceSelection(text, false);
    }

    @Override
    public void beginSession()
    {
    }

    @Override
    public void endSession()
    {
    }

    @Override
    public IRegion getScope()
    {
        return null;
    }

    @Override
    public void setScope(IRegion scope)
    {
    }

    @Override
    public Point getLineSelection()
    {
        return getSelection();
    }

    @Override
    public void setSelection(int offset, int length)
    {
        text.setSelection(offset, length);
    }

    @Override
    public void setScopeHighlightColor(Color color)
    {
        this.scopeHighlightColor = color;
    }

    @Override
    public void setReplaceAllMode(boolean replaceAll)
    {
        this.replaceAll = replaceAll;
    }

    @Override
    public int findAndSelect(int offset, String findString, boolean searchForward, boolean caseSensitive, boolean wholeWord, boolean regExSearch)
    {
        searchPattern = null;

        Pattern findPattern;
        if (regExSearch) {
            try {
                findPattern = Pattern.compile(findString, caseSensitive ? 0 : Pattern.CASE_INSENSITIVE);
            } catch (PatternSyntaxException e) {
                log.warn("Bad regex pattern: " + findString);
                return -1;
            }
        } else {
            findPattern = Pattern.compile(Pattern.quote(findString), caseSensitive ? 0 : Pattern.CASE_INSENSITIVE);
        }
        if (offset == -1) {
            offset = 0;
        }
        int textLength = text.getCharCount();
        if (textLength <= 0 || offset >= textLength) {
            return -1;
        }
        String searchIn = text.getText();
        Matcher matcher = findPattern.matcher(searchIn);
        if (matcher.find(offset)) {
            text.setSelection(matcher.start(), matcher.end());
            return matcher.start();
        }
        return -1;
    }

    @Override
    public void replaceSelection(String str, boolean regExReplace)
    {
/*
        GridPos selection = (GridPos) owner.getSelection().getFirstElement();
        if (selection == null) {
            return;
        }
        GridCell cell = owner.getSpreadsheet().posToCell(selection);
        if (cell == null) {
            return;
        }
        String oldValue = owner.getSpreadsheet().getContentProvider().getCellText(cell.col, cell.row);
        String newValue = str;
        if (searchPattern != null) {
            newValue = searchPattern.matcher(oldValue).replaceAll(newValue);
        }

        boolean recordMode = owner.getController().isRecordMode();
        final DBDAttributeBinding attr = (DBDAttributeBinding)(recordMode ? cell.row : cell.col);
        final ResultSetRow row = (ResultSetRow)(recordMode ? cell.col : cell.row);
        owner.getController().getModel().updateCellValue(attr, row, newValue);
        owner.getController().updatePanelsContent();
*/
    }

}