//
//    File: viewpointdialog.cc
//
//    (C) 2000-2006 Helmut Cantzler
//
//    Licensed under the terms of the Lesser General Public License.
//

#include <qlabel.h>
#include <qpushbutton.h>
#include <qlineedit.h>
#include <qvalidator.h>
#include <qlayout.h>
#include <qhbox.h>
#include <qtable.h>

#include "viewpointdialog.h"

DoubleItem::DoubleItem(QTable *t, float l, float h, const float &f)
  : QTableItem(t, QTableItem::WhenCurrent, QString::number(f))
{
  low=l;
  high=h;
}
 
QWidget* DoubleItem::createEditor() const
{
  QLineEdit *e = new QLineEdit(table());
  e->setValidator( new QDoubleValidator(low, high, 10, e) );
  e->setText(text());
 
  return e;
}

ViewpointDialog::ViewpointDialog(QWidget *parent, GLMesh_Settings *s,
				 const char *name) :
  QDialog(parent, name, TRUE)
{
  QString string;

  settings=s;

  QVBoxLayout *box = new QVBoxLayout(this);
  box->setMargin(5);
  box->setSpacing(5);
 
  QHBoxLayout *row1 = new QHBoxLayout(box);
  row1->setMargin(5);
  row1->setSpacing(5);

  row1->addWidget( new QLabel("XShift:", this) );
  xshift = new QLineEdit(this);
  xshift->setValidator( new QDoubleValidator(-99.0, 99.0, 10, xshift) );
  string.setNum(settings->xShift);
  xshift->setText(string);
  xshift->setMaximumWidth(80);
  row1->addWidget( xshift );

  row1->addWidget( new QLabel("YShift:", this) );
  yshift = new QLineEdit(this);
  yshift->setValidator( new QDoubleValidator(-99.0, 99.0, 10, yshift) );
  string.setNum(settings->yShift);
  yshift->setText(string);
  yshift->setMaximumWidth(80);
  row1->addWidget(yshift);

  row1->addWidget( new QLabel("ZShift:", this) );
  zshift = new QLineEdit(this);
  zshift->setValidator( new QDoubleValidator(-99.0, 99.0, 10, zshift) );
  string.setNum(settings->zShift);
  zshift->setText(string);
  zshift->setMaximumWidth(80);
  row1->addWidget(zshift);
  row1->addStretch(0);

  QHBoxLayout *row2 = new QHBoxLayout(box);
  row2->setMargin(5);
  row2->setSpacing(5);

  row2->addWidget( new QLabel("Clipping:", this) );
  clipping = new QLineEdit(this);
  clipping->setValidator( new QDoubleValidator(-99.0, 99.0, 10, clipping) );
  string.setNum(settings->clipping);
  clipping->setText(string);
  clipping->setMaximumWidth(80);
  row2->addWidget( clipping );
  row2->addStretch(0);

  DoubleItem *item;

  table = new QTable(3, 3, this);
  for (int i=0; i < 3; i++)
    for (int j=0; j < 3; j++)
      {
	item = new DoubleItem(table, -1.0, 1.0, settings->tb_transform[i][j]);
	table->setItem(i, j, item);
      }
  box->addWidget(table);

  QWidget *buttons = new QWidget(this);

  QHBoxLayout *buttons_layout = new QHBoxLayout(buttons);
  buttons_layout->setMargin(5);
  buttons_layout->setSpacing(5);

  QPushButton* cancel = new QPushButton("Cancel", buttons);
  connect(cancel, SIGNAL(clicked()), this, SLOT(reject()));
  QPushButton* ok = new QPushButton("OK", buttons);
  connect(ok, SIGNAL(clicked()), this, SLOT(accept()));

  buttons_layout->addStretch( 10 );
  buttons_layout->addWidget( ok );
  buttons_layout->addWidget( cancel );

  box->addWidget(buttons);

  setCaption("Set Viewpoint");
}

void ViewpointDialog::accept()
{
  settings->xShift=xshift->text().toFloat();
  settings->yShift=yshift->text().toFloat();
  settings->zShift=zshift->text().toFloat();
  settings->clipping=clipping->text().toFloat();

  for (int i=0; i < 3; i++)
    for (int j=0; j < 3; j++)
      settings->tb_transform[i][j]=table->text(i,j).toFloat();

  QDialog::accept();
}