textureProperties.cc 8.55 KB
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//=============================================================================
//
//                               OpenFlipper
//        Copyright (C) 2008 by Computer Graphics Group, RWTH Aachen
//                           www.openflipper.org
//
//-----------------------------------------------------------------------------
//
//                                License
//
//  OpenFlipper is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
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//
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//  OpenFlipper 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 Lesser General Public License for more details.
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//
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//  You should have received a copy of the GNU Lesser General Public License
//  along with OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
//
//   $Revision$
//   $Author$
//   $Date$
//
//=============================================================================




#include "textureProperties.hh"
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#include <float.h>

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#include <QtGui>
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#include <OpenFlipper/common/GlobalOptions.hh>
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texturePropertiesWidget::texturePropertiesWidget(QWidget *parent)
    : QDialog(parent)
{
    setupUi(this);
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    connect(buttonBox, SIGNAL( clicked(QAbstractButton*) ), this , SLOT ( slotButtonBoxClicked(QAbstractButton*) ) );
    connect(textureList, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(textureChanged(QListWidgetItem*)) );
    connect(textureList, SIGNAL(itemPressed(QListWidgetItem*)), this, SLOT(textureAboutToChange(QListWidgetItem*)) );

    //remember changes
    connect(repeatBox, SIGNAL( clicked() ), this , SLOT ( slotPropertiesChanged() ) );
    connect(clampBox, SIGNAL( clicked() ), this , SLOT ( slotPropertiesChanged() ) );
    connect(centerBox, SIGNAL( clicked() ), this , SLOT ( slotPropertiesChanged() ) );
    connect(absBox, SIGNAL( clicked() ), this , SLOT ( slotPropertiesChanged() ) );
    connect(scaleBox, SIGNAL( clicked() ), this , SLOT ( slotPropertiesChanged() ) );

    connect(max_val, SIGNAL( valueChanged(double) ), this , SLOT ( slotPropertiesChanged(double) ) );
    connect(clamp_min, SIGNAL( valueChanged(double) ), this , SLOT ( slotPropertiesChanged(double) ) );
    connect(clamp_max, SIGNAL( valueChanged(double) ), this , SLOT ( slotPropertiesChanged(double) ) );

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    connect(changeImageButton, SIGNAL( clicked() ), this, SLOT( slotChangeImage() ) );

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    texData_ = 0;

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    #ifdef WITH_QWT
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      QGridLayout* layout = new QGridLayout( originalData);
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      functionPlot_ = new ACG::QwtFunctionPlot(0);
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      layout->addWidget( functionPlot_ , 0,0  );
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    #endif
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}

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void texturePropertiesWidget::show(TextureData* _texData, int _id, QString _name){

  texData_ = _texData;
  id_ = _id;

  textureList->clear();

  for (uint i=0; i < texData_->textures().size(); i++)
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    textureList->addItem( texData_->textures()[i].name() );
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  if ( textureList->count() == 0){
    QMessageBox msgBox(this);
    msgBox.setText("Cannot show Properties. No Textures available!");
    msgBox.exec();
    return;
  }

  if (id_ == -1)
    textureLabel->setText("<B>Global Textures</B>");
  else
    textureLabel->setText("<B>Textures for object '" + _name + "'</B>");

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  propChanged_ = false;

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  textureList->setCurrentItem( textureList->item(0) );
  textureChanged( textureList->item(0) );

  QDialog::show();
}

void texturePropertiesWidget::textureAboutToChange(QListWidgetItem* _item){

  if (propChanged_){
    QMessageBox msgBox(this);
    msgBox.setText("The properties of the current texture have been changed.");
    msgBox.setInformativeText("Do you want to apply these changes?");
    msgBox.setStandardButtons(QMessageBox::Apply | QMessageBox::Discard );
    msgBox.setDefaultButton(QMessageBox::Apply);
    int ret = msgBox.exec();

    if (ret == QMessageBox::Apply){
      //just hit the applyButton ;)
      for (int i=0; i < buttonBox->buttons().count(); i++)
        if ( buttonBox->standardButton( buttonBox->buttons()[i] ) == QDialogButtonBox::Apply )
          slotButtonBoxClicked( buttonBox->buttons()[i] );

      textureList->setCurrentItem( _item );
      textureChanged( _item );

    } else {
      propChanged_ = false;

      textureList->setCurrentItem( _item );
      textureChanged( _item );
    }
  }
}

void texturePropertiesWidget::textureChanged(QListWidgetItem* _item){

  //open changes for the last texture so switch back
  if ( propChanged_ ){
    textureList->setCurrentRow( curRow_ );
    return;
  }

  if ( !texData_->textureExists( _item->text() ) )
    return; //should not happen

  textureName_ = _item->text();

  //update the dialog
  Texture& texture = texData_->texture(textureName_);

  repeatBox->setChecked(texture.parameters.repeat);
  clampBox->setChecked(texture.parameters.clamp);
  centerBox->setChecked(texture.parameters.center);
  absBox->setChecked(texture.parameters.abs);

  max_val->setValue( texture.parameters.max_val );
  clamp_min->setValue( texture.parameters.clamp_min );
  clamp_max->setValue( texture.parameters.clamp_max );

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  // Show the texture Image
  imageLabel->setPixmap(QPixmap::fromImage(texture.textureImage));
  imageLabel->setScaledContents(true);

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  if ( texture.filename().startsWith("/") )
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    fileLabel->setText( "File: " + texture.filename() );
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  else
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    fileLabel->setText( "File: " + OpenFlipper::Options::textureDirStr() + QDir::separator() + texture.filename() );
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  currentImage_ = texture.filename();

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  // update plot only when dimension is 1
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  if ( texture.dimension() == 1 && id_ != -1) {
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    #ifdef WITH_QWT
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      std::vector< double > x;
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      emit getCoordinates1D(textureName_, id_, x);
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      if ( x.size() > 0 ){
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        std::vector< double > y( x.size(), 1.0);
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        functionPlot_->clear();
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        functionPlot_->add_function( x, y, "Histogram" );
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        functionPlot_->histogram_mode();
      }
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    #endif
  }

  propChanged_ = false;
  curRow_ = textureList->currentRow();
}
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void texturePropertiesWidget::slotChangeImage() {

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  QString fileName = QFileDialog::getOpenFileName(this, tr("Open Image"),
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                                                  OpenFlipper::Options::currentDirStr(),
                                                  tr("Images (*.png *.xpm *.jpg)"));

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  if ( QFile(fileName).exists() ){
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    imageLabel->setPixmap( QPixmap(fileName) );
    imageLabel->setScaledContents(true);
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    fileLabel->setText( "File: " + fileName );

    currentImage_ = fileName;

    propChanged_ = true;
  }
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}

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void texturePropertiesWidget::slotButtonBoxClicked(QAbstractButton* _button){

  QDialogButtonBox::StandardButton btn = buttonBox->standardButton(_button);

  if ( btn == QDialogButtonBox::Apply || btn == QDialogButtonBox::Ok){

    //applySettings
    bool changed = false;

    Texture& texture = texData_->texture(textureName_);

    if ( texture.parameters.repeat != repeatBox->isChecked() ){
      texture.parameters.repeat=repeatBox->isChecked();
      changed = true;
    }
    if ( texture.parameters.clamp != clampBox->isChecked() ){
      texture.parameters.clamp=clampBox->isChecked();
      changed = true;
    }
    if ( texture.parameters.center != centerBox->isChecked() ){
      texture.parameters.center=centerBox->isChecked();
      changed = true;
    }
    if ( texture.parameters.abs != absBox->isChecked() ){
      texture.parameters.abs=absBox->isChecked();
      changed = true;
    }
    if ( texture.parameters.scale != scaleBox->isChecked() ){
      texture.parameters.scale=scaleBox->isChecked();
      changed = true;
    }

    if ( texture.parameters.max_val != max_val->value() ){
      texture.parameters.max_val = max_val->value();
      changed = true;
    }

    if ( texture.parameters.clamp_min != clamp_min->value() ){
      texture.parameters.clamp_min = clamp_min->value();
      changed = true;
    }

    if ( texture.parameters.clamp_max != clamp_max->value() ){
      texture.parameters.clamp_max = clamp_max->value();
      changed = true;
    }

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    if ( texture.filename() != currentImage_ ){
      texture.filename( currentImage_ );
      texture.textureImage = QImage( currentImage_ );
      changed = true;
    }

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    //inform the plugin about the update
    if (changed)
      emit applyProperties(texData_, textureName_, id_ );

    propChanged_ = false;
  }

  if ( btn == QDialogButtonBox::Apply )
    return;
  else
    hide();
}

void texturePropertiesWidget::slotPropertiesChanged(double /*_value*/){
  propChanged_ = true;
}