// macro_cart.cpp
//
// The macro cart editor for RDLibrary.
//
//   (C) Copyright 2002-2019 Fred Gleason <fredg@paravelsystems.com>
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the GNU General Public License version 2 as
//   published by the Free Software Foundation.
//
//   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, write to the Free Software
//   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//

#include <qstring.h>

#include "cdripper.h"
#include "edit_macro.h"
#include "globals.h"
#include "macro_cart.h"
#include "record_cut.h"

MacroCart::MacroCart(RDCart *cart,QWidget *parent)
  : RDWidget(parent)
{
  rdcart_length=0;
  rdcart_cart=cart;
  setCaption(QString().sprintf("%u",rdcart_cart->number())+" - "+
    rdcart_cart->title());
  rdcart_allow_modification=rda->user()->modifyCarts();

  //
  // Add Macro Button
  //
  rdcart_add_button=new QPushButton(this);
  rdcart_add_button->setGeometry(10,0,80,50);
  rdcart_add_button->setFont(buttonFont());
  rdcart_add_button->setText(tr("Add"));
  rdcart_add_button->setEnabled(false);
  connect(rdcart_add_button,SIGNAL(clicked()),this,SLOT(addMacroData()));

  //
  // Delete Macro Button
  //
  rdcart_delete_button=new QPushButton(this);
  rdcart_delete_button->setGeometry(10,60,80,50);
  rdcart_delete_button->setFont(buttonFont());
  rdcart_delete_button->setText(tr("Delete"));
  rdcart_delete_button->setEnabled(false);
  connect(rdcart_delete_button,SIGNAL(clicked()),this,SLOT(deleteMacroData()));

  //
  // Copy Macro Button
  //
  rdcart_copy_button=new QPushButton(this);
  rdcart_copy_button->setGeometry(10,120,80,50);
  rdcart_copy_button->setFont(buttonFont());
  rdcart_copy_button->setText(tr("Copy"));
  rdcart_copy_button->setEnabled(false);
  connect(rdcart_copy_button,SIGNAL(clicked()),this,SLOT(copyMacroData()));

  //
  // Paste Macro Button
  //
  paste_macro_button=new QPushButton(this);
  paste_macro_button->setGeometry(10,180,80,50);
  paste_macro_button->setFont(buttonFont());
  paste_macro_button->setText(tr("Paste"));
  paste_macro_button->setDisabled(true);
  paste_macro_button->setEnabled(false);
  connect(paste_macro_button,SIGNAL(clicked()),this,SLOT(pasteMacroData()));

  //
  // Cart Macro List
  //
  rdcart_events=new RDMacroEvent(rda->station()->address(),rda->ripc(),this);
  rdcart_events->load(rdcart_cart->macros());

  rdcart_macro_list=new Q3ListView(this);
  rdcart_macro_list->setGeometry(100,0,430,sizeHint().height());
  rdcart_macro_list->setAllColumnsShowFocus(true);
  rdcart_macro_list->setItemMargin(5);
  rdcart_macro_list->setSorting(-1);
  connect(rdcart_macro_list,
	  SIGNAL(selectionChanged(Q3ListViewItem *)),
	  this,
	  SLOT(selectionChangedData(Q3ListViewItem *)));
  connect(rdcart_macro_list,
	  SIGNAL(doubleClicked(Q3ListViewItem *)),
	  this,
	  SLOT(doubleClickedData(Q3ListViewItem *)));

  rdcart_macro_list->addColumn(tr("Line"));
  rdcart_macro_list->setColumnAlignment(0,Qt::AlignHCenter);

  rdcart_macro_list->addColumn(tr("Command"));
  rdcart_macro_list->setColumnAlignment(1,Qt::AlignLeft);

  rdcart_macro_list_label=new QLabel(rdcart_macro_list,tr("Macros"),this);
  rdcart_macro_list_label->setGeometry(105,345,430,22);
  rdcart_macro_list_label->setFont(progressFont());

  RefreshList();

  //
  // Edit Macro Button
  //
  rdcart_edit_button=new QPushButton(this);
  rdcart_edit_button->setGeometry(550,0,80,50);
  rdcart_edit_button->setFont(buttonFont());
  rdcart_edit_button->setText(tr("Edit"));
  rdcart_edit_button->setEnabled(false);
  connect(rdcart_edit_button,SIGNAL(clicked()),this,SLOT(editMacroData()));

  //
  // Run Line Button
  //
  rdcart_runline_button=new QPushButton(this);
  rdcart_runline_button->setGeometry(550,120,80,50);
  rdcart_runline_button->setFont(buttonFont());
  rdcart_runline_button->setText(tr("Run\nLine"));
  rdcart_runline_button->setEnabled(false);
  connect(rdcart_runline_button,SIGNAL(clicked()),
	  this,SLOT(runLineMacroData()));

  //
  // Run Cart Button
  //
  rdcart_runcart_button=new QPushButton(this);
  rdcart_runcart_button->setGeometry(550,180,80,50);
  rdcart_runcart_button->setFont(buttonFont());
  rdcart_runcart_button->setText(tr("Run\nCart"));
  connect(rdcart_runcart_button,SIGNAL(clicked()),
	  this,SLOT(runCartMacroData()));
}


QSize MacroCart::sizeHint() const
{
  return QSize(640,290);
} 


QSizePolicy MacroCart::sizePolicy() const
{
  return QSizePolicy(QSizePolicy::Fixed,QSizePolicy::Fixed);
}


unsigned MacroCart::length()
{
  return rdcart_events->length();
}


void MacroCart::save()
{
  rdcart_cart->setMacros(rdcart_events->save());
}


void MacroCart::addMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();
  RDMacro cmd;
  unsigned line;

  if(item==NULL||item->text(0).isEmpty()) {
    line=rdcart_events->size();
  }
  else {
    line=item->text(0).toUInt()-1;
  }
  EditMacro *edit=new EditMacro(&cmd,true,this);
  if(edit->exec()!=-1) {
    AddLine(line,&cmd);
    UpdateLength();
  }
  delete edit;
}


void MacroCart::deleteMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();

  if((item==NULL)||(item->text(0).isEmpty())) {
    return;
  }
  DeleteLine(item);
  UpdateLength();
}


void MacroCart::copyMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();

  if((item==NULL)||(item->text(0).isEmpty())) {
    return;
  }
  rdcart_clipboard=*rdcart_events->command(item->text(0).toUInt()-1);
  paste_macro_button->setEnabled(rdcart_allow_modification);
}


void MacroCart::pasteMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();
  unsigned line;

  if(item==NULL) {
    return;
  }
  if(item->text(0).isEmpty()) {
    line=rdcart_events->size();
  }
  else {
    line=item->text(0).toUInt()-1;
  }
  AddLine(line,&rdcart_clipboard);
  UpdateLength();
}


void MacroCart::editMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();

  if((item==NULL)||(item->text(0).isEmpty())) {
    return;
  }
  unsigned line=item->text(0).toUInt()-1;
  EditMacro *edit=new EditMacro(rdcart_events->command(line),false,this);
  if(edit->exec()!=-1) {
    RefreshLine(item);
    UpdateLength();
  }
  delete edit;
}


void MacroCart::runLineMacroData()
{
  Q3ListViewItem *item=rdcart_macro_list->selectedItem();

  if((item==NULL)||(item->text(0).isEmpty())) {
    return;
  }
  unsigned line=item->text(0).toUInt()-1;
  rdcart_events->exec(line);
}


void MacroCart::runCartMacroData()
{
  rdcart_events->exec();
}


void MacroCart::selectionChangedData(Q3ListViewItem *item)
{
  rdcart_add_button->setEnabled(rdcart_allow_modification);
  if(!rdcart_clipboard.isNull()) {
    paste_macro_button->setEnabled(rdcart_allow_modification);
  }
  if(!item->text(0).isEmpty()) {
    rdcart_runline_button->setEnabled(rdcart_allow_modification);
    rdcart_delete_button->setEnabled(rdcart_allow_modification);
    rdcart_copy_button->setEnabled(rdcart_allow_modification);
    rdcart_edit_button->setEnabled(rdcart_allow_modification);
  }
  else {
    rdcart_runline_button->setEnabled(false);
    rdcart_delete_button->setEnabled(false);
    rdcart_copy_button->setEnabled(false);
    rdcart_edit_button->setEnabled(false);
  }
}


void MacroCart::doubleClickedData(Q3ListViewItem *item)
{
  if(rdcart_allow_modification) {
    if((item==NULL)||(item->text(0).isEmpty())) {
      addMacroData();
    }
    else {
      editMacroData();
    }
  }
}


void MacroCart::RefreshList()
{
  Q3ListViewItem *item=NULL;
  Q3ListViewItem *selected;
  QString line;

  selected=rdcart_macro_list->selectedItem();
  if(selected!=NULL) {
    line=selected->text(0);
  }

  rdcart_macro_list->clear();
  for(int i=0;i<rdcart_events->size();i++) {
    item=new Q3ListViewItem(rdcart_macro_list);
    item->setText(0,QString().sprintf("%03d",i+1));
    item->setText(1,rdcart_events->command(i)->toString());
  }
  SortLines();
  if(item!=NULL) {
    item=new Q3ListViewItem(rdcart_macro_list,item);
  }
  else {
    item=new Q3ListViewItem(rdcart_macro_list);
  }
  item->setText(1,tr("--- End of Cart ---"));

  if (!line.isEmpty()) {
    selected=rdcart_macro_list->findItem(line,0);
    if(selected!=NULL) {
      rdcart_macro_list->setSelected(selected,true);
    }
  }
}


void MacroCart::RefreshLine(Q3ListViewItem *item)
{
  int line=item->text(0).toInt()-1;
  item->setText(1,rdcart_events->command(line)->toString());
}


void MacroCart::SortLines()
{
  rdcart_macro_list->setSorting(0);
  rdcart_macro_list->sort();
  rdcart_macro_list->setSorting(-1);
}

void MacroCart::AddLine(unsigned line,RDMacro *cmd)
{
  unsigned curr_line;

  Q3ListViewItem *item=rdcart_macro_list->firstChild();
  for(int i=0;i<rdcart_macro_list->childCount();i++) {
    if(((curr_line=(item->text(0).toUInt()-1))>=line)&&
      (!item->text(0).isEmpty())) {
      item->setText(0,QString().sprintf("%03u",curr_line+2));
    }
    item=item->nextSibling();
  }
  rdcart_events->insert(line,cmd);
  item=new Q3ListViewItem(rdcart_macro_list);
  item->setText(0,QString().sprintf("%03u",line+1));
  item->setText(1,rdcart_events->command(line)->toString());
  rdcart_macro_list->setSelected(item,true);
  RefreshList();
}


void MacroCart::DeleteLine(Q3ListViewItem *item)
{
  unsigned line=item->text(0).toUInt()-1;
  unsigned curr_line;
  Q3ListViewItem *next=item->nextSibling();
  rdcart_macro_list->removeItem(item);
  rdcart_events->remove(line);
  Q3ListViewItem *l=rdcart_macro_list->firstChild();
  for(int i=0;i<rdcart_macro_list->childCount();i++) {
    if(((curr_line=(l->text(0).toUInt()-1))>line)&&
      (!l->text(0).isEmpty())) {
      l->setText(0,QString().sprintf("%03u",curr_line));
    }
    l=l->nextSibling();
  }
  if(next!=NULL) {
    rdcart_macro_list->setSelected(next,true);
  }
}


void MacroCart::UpdateLength()
{
  if(rdcart_events->length()!=rdcart_length) {
    rdcart_length=rdcart_events->length();
    emit lengthChanged(rdcart_length);
  }
}