/*
 * Copyright (C) 2020-2022 Roy Qu (royqh1979@gmail.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "MiscClasses.h"
#include "algorithm"

SynGutter::SynGutter(QObject *parent):
    QObject(parent)
{
    mFont = QFont("Courier New",10);
    mColor= Qt::lightGray;
    mBorderColor = Qt::transparent;
    mTextColor = Qt::black;
    mShowLineNumbers = true;
    mDigitCount = 1;
    mLeadingZeros = false;
    mLeftOffset = 16;
    mRightOffset = 2;
    mVisible = true;
    mUseFontStyle = true;
    mAutoSize = true;
    mAutoSizeDigitCount = mDigitCount;
    mBorderStyle = SynGutterBorderStyle::Middle;
    mLineNumberStart = 1;
    mGradient = false;
    mGradientStartColor = Qt::transparent;
    mGradientEndColor = Qt::transparent;
    mGradientSteps = 48;
}

QFont SynGutter::font() const
{
    return mFont;
}

void SynGutter::setFont(const QFont &font)
{
    if (mFont != font) {
        mFont = font;
        setChanged();
    }
}

bool SynGutter::autoSize() const
{
    return mAutoSize;
}

void SynGutter::setAutoSize(bool value)
{
    if (mAutoSize != value) {
        mAutoSize = value;
        setChanged();
    }
}

void SynGutter::setChanged()
{
    emit changed();
}

const QColor &SynGutter::activeLineTextColor() const
{
    return mActiveLineTextColor;
}

void SynGutter::setActiveLineTextColor(const QColor &newActiveLineTextColor)
{
    mActiveLineTextColor = newActiveLineTextColor;
}

QColor SynGutter::textColor() const
{
    return mTextColor;
}

void SynGutter::setTextColor(const QColor &value)
{
    if (mTextColor!=value) {
        mTextColor = value;
        setChanged();
    }
}

void SynGutter::autoSizeDigitCount(int linesCount)
{
    if (mVisible && mAutoSize && mShowLineNumbers) {
        linesCount += (mLineNumberStart - 1);
    }
    int nDigits = std::max(QString::number(linesCount).length(), mDigitCount);
    if (mAutoSizeDigitCount!=nDigits) {
        mAutoSizeDigitCount = nDigits;
        setChanged();
    }
}

QString SynGutter::formatLineNumber(int line)
{
    line += (mLineNumberStart - 1);
    QString result = QString::number(line);
    if (mLeadingZeros) {
        return QString(mAutoSizeDigitCount - result.length(),'0') + result;
    } else {
        return result;
    }
}

int SynGutter::realGutterWidth(int charWidth)
{
    if (!mVisible) {
        return 0;
    }
    if (mShowLineNumbers) {
        return mLeftOffset + mRightOffset + mAutoSizeDigitCount * charWidth + 2;
    }
    return mLeftOffset + mRightOffset;
}

bool SynGutter::visible() const
{
    return mVisible;
}

void SynGutter::setVisible(bool visible)
{
    if (mVisible!=visible) {
        mVisible = visible;
        setChanged();
    }
}

bool SynGutter::useFontStyle() const
{
    return mUseFontStyle;
}

void SynGutter::setUseFontStyle(bool useFontStyle)
{
    if (mUseFontStyle!=useFontStyle) {
        mUseFontStyle = useFontStyle;
        setChanged();
    }
}

bool SynGutter::showLineNumbers() const
{
    return mShowLineNumbers;
}

void SynGutter::setShowLineNumbers(bool showLineNumbers)
{
    if (mShowLineNumbers!=showLineNumbers) {
        mShowLineNumbers = showLineNumbers;
        setChanged();
    }
}

int SynGutter::rightOffset() const
{
    return mRightOffset;
}

void SynGutter::setRightOffset(int rightOffset)
{
    int value = std::max(0, rightOffset);
    if (mRightOffset != value) {
        mRightOffset = value;
        setChanged();
    }
}

int SynGutter::lineNumberStart() const
{
    return mLineNumberStart;
}

void SynGutter::setLineNumberStart(int lineNumberStart)
{
    int value = std::max(0,lineNumberStart);
    if (mLineNumberStart!=value) {
        mLineNumberStart = value;
        setChanged();
    }
}

bool SynGutter::zeroStart()
{
    return mLineNumberStart == 0;
}

int SynGutter::leftOffset() const
{
    return mLeftOffset;
}

void SynGutter::setLeftOffset(int leftOffset)
{
    int value = std::max(0,leftOffset);
    if (mLeftOffset != value) {
        mLeftOffset = value;
        setChanged();
    }
}

bool SynGutter::leadingZeros() const
{
    return mLeadingZeros;
}

void SynGutter::setLeadingZeros(bool value)
{
    if (mLeadingZeros!=value) {
        mLeadingZeros = value;
        setChanged();
    }
}

int SynGutter::gradientSteps() const
{
    return mGradientSteps;
}

void SynGutter::setGradientSteps(int value)
{
    if (mGradientSteps!=value) {
        mGradientSteps = value;
        if (mGradientSteps<2)
            mGradientSteps = 2;
        setChanged();
    }
}

QColor SynGutter::gradientEndColor() const
{
    return mGradientEndColor;
}

void SynGutter::setGradientEndColor(const QColor &value)
{
    if (mGradientEndColor!=value) {
        mGradientEndColor = value;
        setChanged();
    }
}

QColor SynGutter::gradientStartColor() const
{
    return mGradientStartColor;
}

void SynGutter::setGradientStartColor(const QColor &value)
{
    if (mGradientStartColor!=value) {
        mGradientStartColor = value;
        setChanged();
    }
}

bool SynGutter::gradient() const
{
    return mGradient;
}

void SynGutter::setGradient(bool value)
{
    if (mGradient!=value){
        mGradient = value;
        setChanged();
    }
}

SynGutterBorderStyle SynGutter::borderStyle() const
{
    return mBorderStyle;
}

void SynGutter::setBorderStyle(const SynGutterBorderStyle &value)
{
    if (mBorderStyle!=value) {
        mBorderStyle = value;
        setChanged();
    }
}

int SynGutter::digitCount() const
{
    return mDigitCount;
}

void SynGutter::setDigitCount(int value)
{
    if (mDigitCount != value ) {
        mDigitCount = value;
        setChanged();
    }
}

QColor SynGutter::color() const
{
    return mColor;
}

void SynGutter::setColor(const QColor &value)
{
    if (mColor!=value) {
        mColor = value;
        setChanged();
    }
}

QColor SynGutter::borderColor() const
{
    return mBorderColor;
}

void SynGutter::setBorderColor(const QColor &value)
{
    if (mBorderColor!=value) {
        mBorderColor = value;
        setChanged();
    }
}


SynEditMark::SynEditMark(QObject * /*parent*/)
{
    mBookmarkNum = -1;
}

int SynEditMark::Char() const
{
    return mChar;
}

void SynEditMark::setChar(int value)
{
    if (value != mChar) {
        mChar = value;
    }
}

int SynEditMark::image() const
{
    return mImage;
}

void SynEditMark::setImage(int image)
{
    if (mImage != image) {
        mImage = image;
        if (mVisible)
            emit changed();
    }
}

bool SynEditMark::visible() const
{
    return mVisible;
}

void SynEditMark::setVisible(bool visible)
{
    if (mVisible!=visible) {
        mVisible = visible;
        emit changed();
    }
}

int SynEditMark::bookmarkNum() const
{
    return mBookmarkNum;
}

void SynEditMark::setBookmarkNum(int bookmarkNum)
{
    mBookmarkNum = bookmarkNum;
}

bool SynEditMark::internalImage() const
{
    return mInternalImage;
}

void SynEditMark::setInternalImage(bool internalImage)
{
    if (mInternalImage!=internalImage) {
        mInternalImage = internalImage;
        if (mVisible)
            emit changed();
    }
}

bool SynEditMark::isBookmark() const
{
    return (mBookmarkNum>=0);
}

int SynEditMark::line() const
{
    return mLine;
}

void SynEditMark::setLine(int line)
{
    if (mLine!=line) {
        if (mVisible && mLine>0)
            emit changed();
        mLine = line;
        if (mVisible && mLine>0)
            emit changed();
    }
}

SynBookMarkOpt::SynBookMarkOpt(QObject */*parent*/)
{
    mDrawBookmarksFirst = true;
    mEnableKeys = true;
    mGlyphsVisible = true;
    mLeftMargin = 2;
    mXOffset = 12;
}

PSynIconList SynBookMarkOpt::bookmarkImages() const
{
    return mBookmarkImages;
}

void SynBookMarkOpt::setBookmarkImages(const PSynIconList &images)
{
    if (mBookmarkImages != images) {
      mBookmarkImages = images;
      emit changed();
    }
}

bool SynBookMarkOpt::drawBookmarksFirst() const
{
    return mDrawBookmarksFirst;
}

void SynBookMarkOpt::setDrawBookmarksFirst(bool drawBookmarksFirst)
{
    if (mDrawBookmarksFirst != drawBookmarksFirst) {
        mDrawBookmarksFirst = drawBookmarksFirst;
        emit changed();
    }
}

bool SynBookMarkOpt::enableKeys() const
{
    return mEnableKeys;
}

void SynBookMarkOpt::setEnableKeys(bool enableKeys)
{
    mEnableKeys = enableKeys;
}

bool SynBookMarkOpt::glyphsVisible() const
{
    return mGlyphsVisible;
}

void SynBookMarkOpt::setGlyphsVisible(bool glyphsVisible)
{
    if (mGlyphsVisible!=glyphsVisible) {
        mGlyphsVisible = glyphsVisible;
        emit changed();
    }
}

int SynBookMarkOpt::leftMargin() const
{
    return mLeftMargin;
}

void SynBookMarkOpt::setLeftMargin(int leftMargin)
{
    if (leftMargin!=mLeftMargin) {
        mLeftMargin = leftMargin;
        emit changed();
    }
}

int SynBookMarkOpt::xOffset() const
{
    return mXOffset;
}

void SynBookMarkOpt::setXOffset(int xOffset)
{
    if (mXOffset!=xOffset) {
        mXOffset = xOffset;
        emit changed();
    }
}