/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 *

 * Contributor(s):

 */

package org.netbeans.lib.terminalemulator;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.Graphics;

import java.awt.Point;

import java.awt.Rectangle;

import java.util.Arrays;

/**

 * @author Ilia Gromov

 */

public class Highlight {

    private final Term term;

    private final State state;

    private Extent[] highlightExtents = new Extent[0];

    Highlight(Term term, State state) {

        this.term = term;

        this.state = state;

    }

    public Extent[] getHighlightExtents() {

        Extent[] copy = new Extent[highlightExtents.length];

        for (int i = 0; i < highlightExtents.length; i++) {

            Extent x = highlightExtents[i];

            copy[i] = new Extent(x.begin, x.end);

        }

        return copy;

    }

    public void setHighlightExtents(Extent[] highlightExtents) {

        this.highlightExtents = Arrays.copyOf(highlightExtents, highlightExtents.length);

        for (Extent extent : highlightExtents) {

            extent.order();

        }

    }

    // properties:

    private Color color = new Color(230, 230, 255);  // swing color

    void setColor(Color color) {

        this.color = color;

    }

    Color getColor() {

        return color;

    }

    private Color xor_color = Color.white;

    void setXORColor(Color color) {

        xor_color = color;

    }

    Color getXORColor() {

        return xor_color;

    }

    /**

     * Select inside one line Rows and columns are in absolute coords.

     */

    private void paint(Graphics g, int row, int bcol, int ecol) {

        // Instead of doing this SHOULD clip the Extent to what's in view

        // Row is outside the view

        if (row < state.firstx) {

            return;

        }

        if (row > state.firstx + state.rows) {

            return;

        }

        // Construct the rectangle we're going to paint

        BCoord begin = new BCoord(row, bcol);

        BCoord end = new BCoord(row, ecol);

        begin = term.toViewCoord(begin);

        end = term.toViewCoord(end);

        //Hotfix for issue 40189

        if (begin == null || end == null) {

            return;

        }

        int lw;		// width of last character in selection

        Line l = term.buf().lineAt(row);

        lw = l.width(term.metrics(), ecol);

        Point pbegin = term.toPixel(begin);

        Point pend = term.toPixel(end);

        pend.y += term.metrics().height;

        pend.x += term.metrics().width * lw;	// xterm actually doesn't do this

        Dimension dim = new Dimension(pend.x - pbegin.x,

                pend.y - pbegin.y);

        Rectangle rect = new Rectangle(pbegin, dim);

        if (term.isSelectionXOR()) {

            g.setXORMode(xor_color);

        } else {

            g.setColor(color);

        }

        g.fillRect(rect.x, rect.y, rect.width, rect.height);

    }

    void paint(final Graphics g) {

        /*

	 * Paint the selection.

         */

        for (Extent x : highlightExtents) {

            if (x == null) {

                continue;

            }

            x.order();

            // DEBUG System.out.println("Sel.paint extent: " + x);	// NOI18N

            term.visitLines(x.begin, x.end, true, new LineVisitor() {

                public boolean visit(Line l, int row, int bcol, int ecol) {

                    paint(g, row, bcol, ecol);

                    return true;

                }

            });

        }

    }

    public void clear() {

        highlightExtents = new Extent[0];

    }

}

    private Highlight highlight = new Highlight(this, st);

            highlight.paint(g);

    public Extent[] getHighlightExtents() {

        return highlight.getHighlightExtents();

    }

    public void setHighlightExtents(Extent[] extents) {

        for (Extent extent : extents) {

            extent.begin.clip(buf.nlines(), buf.totalCols(), firsta);

            extent.end.clip(buf.nlines(), buf.totalCols(), firsta);

        }

        highlight.setHighlightExtents(extents);

        repaint(false);

    }

    public void clearHighlight() {

        highlight.clear();

        repaint(false);

    }

/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.

 *

 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

 * Other names may be trademarks of their respective owners.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * If you wish your version of this file to be governed by only the CDDL

 * or only the GPL Version 2, indicate your decision by adding

 * "[Contributor] elects to include this software in this distribution

 * under the [CDDL or GPL Version 2] license." If you do not indicate a

 * single choice of license, a recipient has the option to distribute

 * your version of this file under either the CDDL, the GPL Version 2 or

 * to extend the choice of license to its licensees as provided above.

 * However, if you add GPL Version 2 code and therefore, elected the GPL

 * Version 2 license, then the option applies only if the new code is

 * made subject to such option by the copyright holder.

 *

 * Contributor(s):

 */

package org.netbeans.lib.terminalemulator.support;

import java.util.ArrayList;

import java.util.List;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import org.netbeans.lib.terminalemulator.Coord;

import org.netbeans.lib.terminalemulator.Extent;

import org.netbeans.lib.terminalemulator.LogicalLineVisitor;

import org.netbeans.lib.terminalemulator.Term;

/**

 *

 * @author Ilia Gromov

 */

public class HiglightMatchesFindState implements FindState {

    private final FindState findState;

    private final Term term;

    public HiglightMatchesFindState(FindState findState, Term term) {

        this.findState = findState;

        this.term = term;

    }

    @Override

    public void setPattern(String pattern) {

        findState.setPattern(pattern);

    }

    @Override

    public String getPattern() {

        return findState.getPattern();

    }

    @Override

    public void setVisible(boolean visible) {

        findState.setVisible(visible);

        if (!visible) {

            term.clearHighlight();

        }

    }

    @Override

    public boolean isVisible() {

        return findState.isVisible();

    }

    private void findAll() {

        Pattern pattern = Pattern.compile(getPattern(), Pattern.LITERAL);

        List<Extent> extents = new ArrayList<>();

        term.visitLogicalLines(null, null, new LogicalLineVisitor() {

            @Override

            public boolean visit(int line, Coord begin, Coord end, String text) {

                Matcher matcher = pattern.matcher(text);

                while (matcher.find()) {

                    Extent extent = term.extentInLogicalLine(begin, matcher.start(), getPattern().length());

                    extents.add(extent);

                }

                return true;

            }

        });

        term.setHighlightExtents(extents.toArray(new Extent[0]));

    }

    @Override

    public void next() {

        findAll();

        findState.next();

    }

    @Override

    public void prev() {

        findAll();

        findState.prev();

    }

    @Override

    public Status getStatus() {

        return findState.getStatus();

    }

}

import org.netbeans.lib.terminalemulator.support.HiglightMatchesFindState;