/*
 * Cppcheck - A tool for static C/C++ code analysis
 * Copyright (C) 2007-2019 Cppcheck team.
 *
 * 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 <http://www.gnu.org/licenses/>.
 */

#include "codeeditstyledialog.h"
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QFormLayout>
#include <QDialogButtonBox>

const QString StyleEditDialog::mSampleDocument(
"/*****\n"
"* Multiline Comment\n"
"*****/\n"
"#include <QApplication>\n"
"#include <iostream>\n"
"\n"
"class fwdClass;\n"
"\n"
"int main(int argc, char *argv[])\n"
"{\n"
"    QApplication a(argc, argv);\n"
"    int nLife = 42;\n"
"    w.show();\n"
"    // single line comment\n"
"    // line below is highlighted\n"
"    fwdClass( nLife );\n"
"    return a.exec();\n"
"}\n"
"\n"
"void class fwdClass( double dValue ) {\n"
"    std::cout << \"Ipsum Lorem: \"\n"
"              << nValue\n"
"              << std::endl;\n"
"}\n");

const QStringList StyleEditDialog::mErrSymbolsList = (
    QStringList( QStringList()
                 << "nLife"
                 << "dValue"
                 << "nValue"));
const int StyleEditDialog::mErrLineNum = 16;

StyleEditDialog::StyleEditDialog( const CodeEditorStyle& newStyle,
                                  QWidget *parent /*= nullptr*/ ) :
    QDialog( parent ),
    mStyleIncoming( newStyle ),
    mStyleOutgoing( newStyle )
{
    QVBoxLayout *vboxMain = new QVBoxLayout(this);
    QHBoxLayout *hboxEdit = new QHBoxLayout();
    // Color/Weight controls
    QFormLayout *flEditControls = new QFormLayout();
    mBtnWidgetColorFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Editor Foreground Color"),
                            mBtnWidgetColorFG );
    mBtnWidgetColorBG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Editor Background Color"),
                            mBtnWidgetColorBG );
    mBtnHighlightBG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Highlight Background Color"),
                            mBtnHighlightBG );
    mBtnLineNumFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Line Number Foreground Color"),
                            mBtnLineNumFG );
    mBtnLineNumBG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Line Number Background Color"),
                            mBtnLineNumBG );
    mBtnKeywordFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Keyword Foreground Color"),
                            mBtnKeywordFG );
    mCBKeywordWeight = new SelectFontWeightCombo( this );
    flEditControls->addRow( QObject::tr("Keyword Font Weight"),
                            mCBKeywordWeight );
    mBtnClassFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Class ForegroundColor"),
                            mBtnClassFG );
    mCBClassWeight = new SelectFontWeightCombo( this );
    flEditControls->addRow( QObject::tr("Class Font Weight"),
                            mCBClassWeight );
    mBtnQuoteFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Quote Foreground Color"),
                            mBtnQuoteFG );
    mCBQuoteWeight = new SelectFontWeightCombo( this );
    flEditControls->addRow( QObject::tr("Quote Font Weight"),
                            mCBQuoteWeight );
    mBtnCommentFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Comment Foreground Color"),
                            mBtnCommentFG );
    mCBCommentWeight = new SelectFontWeightCombo( this );
    flEditControls->addRow( QObject::tr("Comment Font Weight"),
                            mCBCommentWeight );
    mBtnSymbolFG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Symbol Foreground Color"),
                            mBtnSymbolFG );
    mBtnSymbolBG = new SelectColorButton( this );
    flEditControls->addRow( QObject::tr("Symbol Background Color"),
                            mBtnSymbolBG );
    mCBSymbolWeight = new SelectFontWeightCombo( this );
    flEditControls->addRow( QObject::tr("Symbol Font Weight"),
                            mCBSymbolWeight );
    hboxEdit->addLayout( flEditControls );
    // CodeEditor to display Style
    mSampleEditor = new CodeEditor( this );
    QFont sampleFont( "Monospace" );
    QFontMetrics fm(sampleFont);
    mSampleEditor->setMinimumWidth( fm.width(QString( 40, 'W' )));
    // designate highlight, errors, and symbols
    mSampleEditor->setError( mSampleDocument, mErrLineNum, mErrSymbolsList);
    // End Controls
    hboxEdit->addWidget( mSampleEditor );
    vboxMain->addLayout( hboxEdit );

    // Default Controls
    QHBoxLayout *hboxDefaultControls = new QHBoxLayout();
    mBtnDefaultLight = new QPushButton( QObject::tr("Set to Default Light"),
                                       this );
    mBtnDefaultDark  = new QPushButton( QObject::tr("Set to Default Dark"),
                                       this );
    hboxDefaultControls->addStretch( 1 );
    hboxDefaultControls->addWidget( mBtnDefaultLight );
    hboxDefaultControls->addWidget( mBtnDefaultDark );
    hboxDefaultControls->addStretch( 1 );
    vboxMain->addLayout( hboxDefaultControls );
    vboxMain->addStretch( 2 );
    // dialog controls
    QDialogButtonBox *dBtnBox = new QDialogButtonBox(
        QDialogButtonBox::Cancel |
        QDialogButtonBox::Ok |
        QDialogButtonBox::Reset );
    vboxMain->addStretch( 1 );
    vboxMain->addWidget( dBtnBox );

    // setup values for style controls
    updateControls();
    updateStyle();

    connect( dBtnBox, SIGNAL( accepted() ), this, SLOT( accept() ));
    connect( dBtnBox, SIGNAL( rejected() ), this, SLOT( reject() ));
    connect( dBtnBox->button( QDialogButtonBox::Reset ), SIGNAL(clicked()),
             this, SLOT( resetStyle() ));
    connect( mBtnDefaultLight, SIGNAL( clicked() ),
             this, SLOT( setStyleDefaultLight() ));
    connect( mBtnDefaultDark, SIGNAL( clicked() ),
             this, SLOT( setStyleDefaultDark() ));
    connect( mBtnWidgetColorFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedWidgetFG( QColor& )));
    connect( mBtnWidgetColorBG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedWidgetBG( QColor& )));
    connect( mBtnHighlightBG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedHighlightBG( QColor& )));
    connect( mBtnLineNumFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedLineNumFG( QColor& )));
    connect( mBtnLineNumBG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedLineNumBG( QColor& )));
    connect( mBtnKeywordFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedKeywordFG( QColor& )));
    connect( mCBKeywordWeight, SIGNAL( weightChanged( QFont::Weight& )),
             this, SLOT( weightChangedKeyword( QFont::Weight& )));
    connect( mBtnClassFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedClassFG( QColor& )));
    connect( mCBClassWeight, SIGNAL( weightChanged( QFont::Weight& )),
             this, SLOT( weightChangedClass( QFont::Weight& )));
    connect( mBtnQuoteFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedQuoteFG( QColor& )));
    connect( mCBQuoteWeight, SIGNAL( weightChanged( QFont::Weight& )),
             this, SLOT( weightChangedQuote( QFont::Weight& )));
    connect( mBtnCommentFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedCommentFG( QColor& )));
    connect( mCBCommentWeight, SIGNAL( weightChanged( QFont::Weight& )),
             this, SLOT( weightChangedComment( QFont::Weight& )));
    connect( mBtnSymbolFG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedSymbolFG( QColor& )));
    connect( mBtnSymbolBG, SIGNAL( colorChanged( QColor& )),
             this, SLOT( colorChangedSymbolBG( QColor& )));
    connect( mCBSymbolWeight, SIGNAL( weightChanged( QFont::Weight& )),
             this, SLOT( weightChangedSymbol( QFont::Weight& )));
}

void StyleEditDialog::updateControls()
{
    mBtnWidgetColorFG->setColor( mStyleOutgoing.widgetFGColor );
    mBtnWidgetColorBG->setColor( mStyleOutgoing.widgetBGColor );
    mBtnHighlightBG->setColor( mStyleOutgoing.highlightBGColor );
    mBtnLineNumFG->setColor( mStyleOutgoing.lineNumFGColor );
    mBtnLineNumBG->setColor( mStyleOutgoing.lineNumBGColor );
    mBtnKeywordFG->setColor( mStyleOutgoing.keywordColor );
    mCBKeywordWeight->setWeight( mStyleOutgoing.keywordWeight );
    mBtnClassFG->setColor( mStyleOutgoing.classColor );
    mCBClassWeight->setWeight( mStyleOutgoing.classWeight );
    mBtnQuoteFG->setColor( mStyleOutgoing.quoteColor );
    mCBQuoteWeight->setWeight( mStyleOutgoing.quoteWeight );
    mBtnCommentFG->setColor( mStyleOutgoing.commentColor );
    mCBCommentWeight->setWeight( mStyleOutgoing.commentWeight );
    mBtnSymbolFG->setColor( mStyleOutgoing.symbolFGColor );
    mBtnSymbolBG->setColor( mStyleOutgoing.symbolBGColor );
    mCBSymbolWeight->setWeight( mStyleOutgoing.symbolWeight );
}

void StyleEditDialog::updateStyle()
{
    mBtnDefaultLight->setEnabled( mStyleOutgoing != defaultStyleLight );
    mBtnDefaultDark->setEnabled( mStyleOutgoing != defaultStyleDark );
    // set Editor Styling
    mSampleEditor->setStyle( mStyleOutgoing );
}

CodeEditorStyle StyleEditDialog::getStyle()
{
    return mStyleOutgoing;
}

void StyleEditDialog::resetStyle()
{
    mStyleOutgoing = mStyleIncoming;
    updateControls();
    updateStyle();
}

void StyleEditDialog::setStyleDefaultLight()
{
    mStyleOutgoing = defaultStyleLight;
    updateControls();
    updateStyle();
}

void StyleEditDialog::setStyleDefaultDark()
{
    mStyleOutgoing = defaultStyleDark;
    updateControls();
    updateStyle();
}

void StyleEditDialog::colorChangedWidgetFG( QColor& newColor )
{
    mStyleOutgoing.widgetFGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedWidgetBG( QColor& newColor )
{
    mStyleOutgoing.widgetBGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedHighlightBG( QColor& newColor )
{
    mStyleOutgoing.highlightBGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedLineNumFG( QColor& newColor )
{
    mStyleOutgoing.lineNumFGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedLineNumBG( QColor& newColor )
{
    mStyleOutgoing.lineNumBGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedKeywordFG( QColor& newColor )
{
    mStyleOutgoing.keywordColor = newColor;
    updateStyle();
}

void StyleEditDialog::weightChangedKeyword( QFont::Weight& newWeight )
{
    mStyleOutgoing.keywordWeight = newWeight;
    updateStyle();
}

void StyleEditDialog::colorChangedClassFG( QColor& newColor )
{
    mStyleOutgoing.classColor = newColor;
    updateStyle();
}

void StyleEditDialog::weightChangedClass( QFont::Weight& newWeight )
{
    mStyleOutgoing.classWeight = newWeight;
    updateStyle();
}

void StyleEditDialog::colorChangedQuoteFG( QColor& newColor )
{
    mStyleOutgoing.quoteColor = newColor;
    updateStyle();
}

void StyleEditDialog::weightChangedQuote( QFont::Weight& newWeight )
{
    mStyleOutgoing.quoteWeight = newWeight;
    updateStyle();
}

void StyleEditDialog::colorChangedCommentFG( QColor& newColor )
{
    mStyleOutgoing.commentColor = newColor;
    updateStyle();
}

void StyleEditDialog::weightChangedComment( QFont::Weight& newWeight )
{
    mStyleOutgoing.commentWeight = newWeight;
    updateStyle();
}

void StyleEditDialog::colorChangedSymbolFG( QColor& newColor )
{
    mStyleOutgoing.symbolFGColor = newColor;
    updateStyle();
}

void StyleEditDialog::colorChangedSymbolBG( QColor& newColor )
{
    mStyleOutgoing.symbolBGColor = newColor;
    updateStyle();
}

void StyleEditDialog::weightChangedSymbol( QFont::Weight& newWeight )
{
    mStyleOutgoing.symbolWeight = newWeight;
    updateStyle();
}