/***************************************************************************
 *   copyright       : (C) 2003-2022 by Pascal Brachet                     *
 *   https://www.xm1math.net/texmaker/                                     *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   @license GPL-2.0+ <https://spdx.org/licenses/GPL-2.0+.html>           *
 ***************************************************************************/

#include "tabdialog.h"
#include <QDebug>

TabDialog::TabDialog(QWidget *parent, const char *name)
    :QDialog( parent)
{
setWindowTitle(name);
setModal(true);
ui.setupUi(this);

colData col;
col.alignment=0;
col.leftborder=0;
liData li;
li.topborder=true;
li.merge=false;
li.mergefrom=1;
li.mergeto=1;
colDataList.clear();
liDataList.clear();
for ( int j = 0; j < 99; ++j )
{
colDataList.append(col);
liDataList.append(li);
}
ui.tableWidget->setRowCount( 2 );
ui.tableWidget->setColumnCount( 2 );

ui.spinBoxRows->setValue(2);
ui.spinBoxRows->setRange(1,99);
connect( ui.spinBoxRows, SIGNAL(valueChanged(int)),this, SLOT(NewRows(int)));


ui.spinBoxColumns->setValue(2);
ui.spinBoxColumns->setRange(1,99);
connect( ui.spinBoxColumns, SIGNAL(valueChanged(int)),this, SLOT(NewColumns(int)));

ui.spinBoxNumCol->setRange(1,2);
ui.spinBoxNumLi->setRange(1,2);
ui.spinBoxSpanFrom->setRange(1,1);
ui.spinBoxSpanTo->setRange(2,2);

ui.comboBoxColAl->insertItem(0,"Center" );
ui.comboBoxColAl->insertItem(1,"Left" );
ui.comboBoxColAl->insertItem(2,"Right" );
ui.comboBoxColAl->insertItem(3, "p{} (fixed width - left)");
ui.comboBoxColAl->insertItem(4, "p{} (fixed width - center)");
ui.comboBoxColAl->insertItem(5, "p{} (fixed width - right)");
ui.comboBoxColAl->setCurrentIndex(0);

ui.comboLeftBorder->insertItem(0,"|");
ui.comboLeftBorder->insertItem(1,"||");
ui.comboLeftBorder->insertItem(2,"none");
ui.comboLeftBorder->insertItem(3, "@{text}" );
ui.comboLeftBorder->setCurrentIndex(0);

ui.comboBoxEndBorder->insertItem(0,"|");
ui.comboBoxEndBorder->insertItem(1,"||");
ui.comboBoxEndBorder->insertItem(2,"none");
ui.comboBoxEndBorder->insertItem(3, "@{text}" );
ui.comboLeftBorder->setCurrentIndex(0);

ui.spinBoxNumCol->setValue(1);
ui.spinBoxNumLi->setValue(1);

ui.checkBoxBorderTop->setChecked(true);
ui.checkBoxSpan->setChecked(false);
ui.spinBoxSpanFrom->setValue(1);
ui.spinBoxSpanTo->setValue(1);
ui.spinBoxSpanFrom->setEnabled(false);
ui.spinBoxSpanTo->setEnabled(false);
ui.checkBoxBorderBottom->setChecked(true);
ui.checkBoxMargin->setChecked(false);

connect(ui.checkBoxSpan, SIGNAL(toggled(bool)),this, SLOT(updateSpanStatus(bool)));

connect(ui.pushButtonColumns, SIGNAL(clicked()), this, SLOT(applytoAllColumns()));
connect(ui.pushButtonLines, SIGNAL(clicked()), this, SLOT(applytoAllLines()));

connect( ui.spinBoxNumCol, SIGNAL(valueChanged(int)),this, SLOT(showColSettings(int)));
connect( ui.spinBoxNumLi, SIGNAL(valueChanged(int)),this, SLOT(showRowSettings(int)));

connect(ui.comboBoxColAl, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));
connect(ui.comboLeftBorder, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));

connect(ui.checkBoxBorderTop, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
connect(ui.checkBoxSpan, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
connect(ui.spinBoxSpanFrom, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));
connect(ui.spinBoxSpanTo, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));

connect(ui.comboBoxEndBorder, SIGNAL(currentIndexChanged(int)),this, SLOT(updateTableWidget()));

connect(ui.tableWidget, SIGNAL(cellClicked(int,int)),this, SLOT(showColRowSettings(int,int)));
connect(ui.tableWidget, SIGNAL(currentCellChanged(int,int,int,int)),this, SLOT(showColRowSettings(int,int)));

setWindowTitle(tr("Quick Tabular"));
updateTableWidget();
}

TabDialog::~TabDialog(){
}
void TabDialog::NewRows(int num)
{
ui.tableWidget->setRowCount( num );
ui.spinBoxNumLi->setRange(1,num);
updateTableWidget();
}

void TabDialog::NewColumns(int num)
{
ui.tableWidget->setColumnCount( num );
ui.spinBoxNumCol->setRange(1,num);
if (num>1)
  {
  ui.spinBoxSpanFrom->setRange(1,num-1);
  ui.spinBoxSpanTo->setRange(2,num);
  }
else
  {
  ui.spinBoxSpanFrom->setRange(1,num-1);
  ui.spinBoxSpanTo->setRange(2,num);
  }
updateTableWidget();
}

void TabDialog::updateSpanStatus(bool enabled)
{
ui.spinBoxSpanFrom->setEnabled(enabled);
ui.spinBoxSpanTo->setEnabled(enabled);
updateTableWidget();
}

void TabDialog::applytoAllColumns()
{
colData col;
col.alignment=ui.comboBoxColAl->currentIndex();
col.leftborder=ui.comboLeftBorder->currentIndex();
for ( int i = 0; i < 99; ++i )
  {
  colDataList.replace(i,col);
  }
updateTableWidget();
}

void TabDialog::applytoAllLines()
{
liData li;
li.topborder=ui.checkBoxBorderTop->isChecked();
li.merge=ui.checkBoxSpan->isChecked();
li.mergefrom=ui.spinBoxSpanFrom->value();
li.mergeto=ui.spinBoxSpanTo->value();
if (li.mergefrom>li.mergeto) 
  {
  li.mergefrom=1;
  li.mergeto=1;
  }
for ( int i = 0; i < 99; ++i )
  {
  liDataList.replace(i,li);
  }
updateTableWidget();
}

void TabDialog::updateColSettings()
{
int i=ui.spinBoxNumCol->value()-1;
colData col;
col.alignment=ui.comboBoxColAl->currentIndex();
col.leftborder=ui.comboLeftBorder->currentIndex();
colDataList.replace(i,col);
updateTableWidget();
//qDebug() << "change" << i << colDataList.at(i).alignment << colDataList.at(i).leftborder;
}

void TabDialog::updateRowSettings()
{
int i=ui.spinBoxNumLi->value()-1;
liData li;
li.topborder=ui.checkBoxBorderTop->isChecked();
li.merge=ui.checkBoxSpan->isChecked();
li.mergefrom=ui.spinBoxSpanFrom->value();
li.mergeto=ui.spinBoxSpanTo->value();
if (li.mergefrom>li.mergeto) 
  {
  li.mergefrom=1;
  li.mergeto=1;
  }
liDataList.replace(i,li);
updateTableWidget();
}

void TabDialog::showColSettings(int column)
{
int i=column-1;
if (i>=99) return;
disconnect(ui.comboBoxColAl, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));
disconnect(ui.comboLeftBorder, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));
ui.comboBoxColAl->setCurrentIndex(colDataList.at(i).alignment);
ui.comboLeftBorder->setCurrentIndex(colDataList.at(i).leftborder);
connect(ui.comboBoxColAl, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));
connect(ui.comboLeftBorder, SIGNAL(currentIndexChanged(int)),this, SLOT(updateColSettings()));
updateTableWidget();
}

void TabDialog::showRowSettings(int row)
{
int i=row-1;
if (i>=99) return;
disconnect(ui.checkBoxBorderTop, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
disconnect(ui.checkBoxSpan, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
disconnect(ui.spinBoxSpanFrom, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));
disconnect(ui.spinBoxSpanTo, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));
ui.checkBoxBorderTop->setChecked(liDataList.at(i).topborder);
ui.checkBoxSpan->setChecked(liDataList.at(i).merge);
ui.spinBoxSpanFrom->setValue(liDataList.at(i).mergefrom);
ui.spinBoxSpanTo->setValue(liDataList.at(i).mergeto);
connect(ui.checkBoxBorderTop, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
connect(ui.checkBoxSpan, SIGNAL(toggled(bool)),this, SLOT(updateRowSettings()));
connect(ui.spinBoxSpanFrom, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));
connect(ui.spinBoxSpanTo, SIGNAL(valueChanged(int)),this, SLOT(updateRowSettings()));
updateTableWidget();
}

void TabDialog::showColRowSettings(int row,int column)
{
ui.spinBoxNumLi->setValue(row+1); 
ui.spinBoxNumCol->setValue(column+1);
}

void TabDialog::updateTableWidget()
{
QStringList borderlist, alignlist;
borderlist<< QString("|") << QString("||") << QString("") << QString("@{}");
alignlist << QString("c") << QString("l") << QString("r") << QString("l p{}") << QString("c p{}") << QString("r p{}");
int y = ui.spinBoxRows->value();
int x = ui.spinBoxColumns->value(); 
QStringList headerList;
QString tag="";
for ( int j=0;j<x;j++) 
  {
  tag=borderlist.at(colDataList.at(j).leftborder);
  tag+=alignlist.at(colDataList.at(j).alignment);
  if (j<x-1) headerList.append(tag);
  }
tag+=borderlist.at(ui.comboBoxEndBorder->currentIndex());
headerList.append(tag);
ui.tableWidget->setHorizontalHeaderLabels(headerList);
/*QColor selBlendColor=QColor("#0000FF");
QColor spancolor = selBlendColor.dark( 140 );
spancolor.setAlphaF( 0.2 );*/
QTableWidgetItem *item, *new_item;
QString content;
for ( int i=0;i<y;i++) 
  {
  for ( int j=0;j<x;j++) 
    {
    item=ui.tableWidget->item(i,j);
    if (item)
	{
	content=item->text();
	new_item=new QTableWidgetItem();
	new_item->setText(content);
	}
    else
	{
	new_item=new QTableWidgetItem();
	new_item->setText("");
	}
    if (alignlist.at(colDataList.at(j).alignment).contains("l")) new_item->setTextAlignment(Qt::AlignLeft|Qt::AlignVCenter);
    else if (alignlist.at(colDataList.at(j).alignment).contains("r")) new_item->setTextAlignment(Qt::AlignRight|Qt::AlignVCenter);
    else new_item->setTextAlignment(Qt::AlignCenter);
    if (ui.tableWidget->columnSpan(i,j)>1) ui.tableWidget->setSpan(i,j,1,1);
/*    if ((liDataList.at(i).merge) && (liDataList.at(i).mergeto>liDataList.at(i).mergefrom)&& (j>=liDataList.at(i).mergefrom-1) && (j<=liDataList.at(i).mergeto-1))
      {
      new_item->setBackgroundColor(spancolor);
      }*/
    ui.tableWidget->setItem(i,j,new_item);
    }
    if ((liDataList.at(i).merge) && (liDataList.at(i).mergeto>liDataList.at(i).mergefrom))
      {
      ui.tableWidget->setSpan(i,liDataList.at(i).mergefrom-1,1,liDataList.at(i).mergeto-liDataList.at(i).mergefrom+1);
      }
  }
}
