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qgsmeshrendereractivedatasetwidget.cpp
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qgsmeshrendereractivedatasetwidget.cpp
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/***************************************************************************
qgsmeshrendereractivedatasetwidget.cpp
---------------------------------------
begin : June 2018
copyright : (C) 2018 by Peter Petrik
email : zilolv at gmail dot com
***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "qgsmeshrendereractivedatasetwidget.h"
#include "qgis.h"
#include "qgsmeshlayer.h"
#include "qgsmessagelog.h"
#include "qgsmeshrenderersettings.h"
QgsMeshRendererActiveDatasetWidget::QgsMeshRendererActiveDatasetWidget( QWidget *parent )
: QWidget( parent )
{
setupUi( this );
connect( mDatasetGroupTreeView, &QgsMeshDatasetGroupTreeView::activeGroupChanged, this, &QgsMeshRendererActiveDatasetWidget::onActiveGroupChanged );
connect( mDatasetSlider, &QSlider::valueChanged, this, &QgsMeshRendererActiveDatasetWidget::onActiveDatasetChanged );
}
void QgsMeshRendererActiveDatasetWidget::setLayer( QgsMeshLayer *layer )
{
mMeshLayer = layer;
mDatasetGroupTreeView->setLayer( layer );
}
QgsMeshDatasetIndex QgsMeshRendererActiveDatasetWidget::activeScalarDataset() const
{
return mActiveScalarDataset;
}
QgsMeshDatasetIndex QgsMeshRendererActiveDatasetWidget::activeVectorDataset() const
{
return mActiveVectorDataset;
}
void QgsMeshRendererActiveDatasetWidget::setSliderRange()
{
int datasetCount = 1;
if ( mMeshLayer &&
mMeshLayer->dataProvider() &&
mDatasetGroupTreeView->activeGroup() != -1 )
datasetCount = mMeshLayer->dataProvider()->datasetCount( mDatasetGroupTreeView->activeGroup() );
mDatasetSlider->setMinimum( 0 );
mDatasetSlider->setMaximum( datasetCount - 1 );
}
void QgsMeshRendererActiveDatasetWidget::onActiveGroupChanged()
{
setSliderRange();
// keep the same timestep if possible
int val = mDatasetSlider->value();
if ( ( val < 0 ) || ( val > mDatasetSlider->maximum() ) )
val = 0;
mDatasetSlider->setValue( val );
onActiveDatasetChanged( val );
}
void QgsMeshRendererActiveDatasetWidget::onActiveDatasetChanged( int value )
{
int groupIndex = mDatasetGroupTreeView->activeGroup();
mActiveScalarDataset = QgsMeshDatasetIndex();
mActiveVectorDataset = QgsMeshDatasetIndex();
QgsMeshDatasetIndex datasetIndex( groupIndex, value );
if ( mMeshLayer &&
mMeshLayer->dataProvider() &&
datasetIndex.isValid() &&
mMeshLayer->dataProvider()->datasetCount( groupIndex ) > value )
{
const QgsMeshDatasetGroupMetadata meta = mMeshLayer->dataProvider()->datasetGroupMetadata( datasetIndex );
mActiveScalarDataset = datasetIndex;
if ( meta.isVector() )
mActiveVectorDataset = datasetIndex;
}
updateMetadata( datasetIndex );
emit activeScalarDatasetChanged( activeScalarDataset() );
emit activeVectorDatasetChanged( activeVectorDataset() );
emit widgetChanged();
}
void QgsMeshRendererActiveDatasetWidget::updateMetadata( QgsMeshDatasetIndex datasetIndex )
{
if ( !mMeshLayer ||
!mMeshLayer->dataProvider() ||
!datasetIndex.isValid() )
{
mActiveDatasetMetadata->setText( tr( "No dataset selected" ) );
}
else
{
QString msg;
msg += QStringLiteral( "<table>" );
const QgsMeshDatasetMetadata meta = mMeshLayer->dataProvider()->datasetMetadata( datasetIndex );
msg += QStringLiteral( "<tr><td>%1</td><td>%2</td></tr>" )
.arg( tr( "Is valid" ) )
.arg( meta.isValid() ? tr( "Yes" ) : tr( "No" ) );
msg += QStringLiteral( "<tr><td>%1</td><td>%2</td></tr>" )
.arg( tr( "Time" ) )
.arg( meta.time() );
const QgsMeshDatasetGroupMetadata gmeta = mMeshLayer->dataProvider()->datasetGroupMetadata( datasetIndex );
msg += QStringLiteral( "<tr><td>%1</td><td>%2</td></tr>" )
.arg( tr( "Data Type" ) )
.arg( gmeta.dataType() == QgsMeshDatasetGroupMetadata::DataOnVertices ? tr( "Defined on vertices" ) : tr( "Defined on faces" ) );
msg += QStringLiteral( "<tr><td>%1</td><td>%2</td></tr>" )
.arg( tr( "Is vector" ) )
.arg( gmeta.isVector() ? tr( "Yes" ) : tr( "No" ) );
for ( auto it = gmeta.extraOptions().constBegin(); it != gmeta.extraOptions().constEnd(); ++it )
{
msg += QStringLiteral( "<tr><td>%1</td><td>%2</td></tr>" ).arg( it.key() ).arg( it.value() );
}
msg += QStringLiteral( "</table>" );
mActiveDatasetMetadata->setText( msg );
}
}
QgsMeshDatasetIndex QgsMeshRendererActiveDatasetWidget::datasetIndex() const
{
int value = mDatasetSlider->value();
int groupIndex = mDatasetGroupTreeView->activeGroup();
if ( mMeshLayer &&
mMeshLayer->dataProvider() &&
groupIndex != -1 &&
mMeshLayer->dataProvider()->datasetCount( groupIndex ) > value
)
return QgsMeshDatasetIndex( groupIndex, value );
else
return QgsMeshDatasetIndex();
}
void QgsMeshRendererActiveDatasetWidget::syncToLayer()
{
setEnabled( mMeshLayer );
whileBlocking( mDatasetGroupTreeView )->syncToLayer();
if ( mMeshLayer )
{
const QgsMeshRendererSettings rendererSettings = mMeshLayer->rendererSettings();
mActiveScalarDataset = rendererSettings.activeScalarDataset();
mActiveVectorDataset = rendererSettings.activeVectorDataset();
}
else
{
mActiveScalarDataset = QgsMeshDatasetIndex();
mActiveVectorDataset = QgsMeshDatasetIndex();
}
int val = 0;
if ( mActiveScalarDataset.isValid() )
val = mActiveScalarDataset.dataset();
mDatasetSlider->setValue( val );
setSliderRange();
onActiveDatasetChanged( val );
}