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qgsrasterlayerproperties.cpp
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qgsrasterlayerproperties.cpp
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/***************************************************************************
qgsrasterlayerproperties.cpp - description
-------------------
begin : 1/1/2004
copyright : (C) 2004 Tim Sutton
email : tim@linfiniti.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 <limits>
#include "qgsmaptopixel.h"
#include "qgsmapcanvas.h"
#include "qgsmaprenderer.h"
#include "qgslogger.h"
#include "qgsapplication.h"
#include "qgisapp.h"
#include "qgsbilinearrasterresampler.h"
#include "qgscubicrasterresampler.h"
#include "qgscoordinatetransform.h"
#include "qgsrasterlayerproperties.h"
#include "qgsrasterrenderer.h"
#include "qgsgenericprojectionselector.h"
#include "qgsproject.h"
#include "qgsrasterbandstats.h"
#include "qgsrasterlayer.h"
#include "qgsrasterpyramid.h"
#include "qgscontexthelp.h"
#include "qgsmaplayerregistry.h"
#include "qgscontrastenhancement.h"
#include "qgsrastertransparency.h"
#include "qgsmaptoolemitpoint.h"
#include "qgsrasterrendererregistry.h"
#include "qgsmultibandcolorrendererwidget.h"
#include "qgspalettedrendererwidget.h"
#include "qgssinglebandgrayrendererwidget.h"
#include "qgssinglebandpseudocolorrendererwidget.h"
#include <QTableWidgetItem>
#include <QHeaderView>
#include <QTextStream>
#include <QFileDialog>
#include <QMessageBox>
#include <QPainter>
#include <QLinearGradient>
#include <QPainterPath>
#include <QPolygonF>
#include <QColorDialog>
#include <QList>
#include <QSettings>
#include <QMouseEvent>
#include <QVector>
// QWT Charting widget
#include <qwt_global.h>
#include <qwt_plot_canvas.h>
#include <qwt_legend.h>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_plot_grid.h>
QgsRasterLayerProperties::QgsRasterLayerProperties( QgsMapLayer* lyr, QgsMapCanvas* theCanvas, QWidget *parent, Qt::WFlags fl )
: QDialog( parent, fl ),
// Constant that signals property not used.
TRSTRING_NOT_SET( tr( "Not Set" ) ),
mRasterLayer( qobject_cast<QgsRasterLayer *>( lyr ) ), mRendererWidget( 0 )
{
mGrayMinimumMaximumEstimated = true;
mRGBMinimumMaximumEstimated = true;
setupUi( this );
connect( buttonBox, SIGNAL( accepted() ), this, SLOT( accept() ) );
connect( this, SIGNAL( accepted() ), this, SLOT( apply() ) );
connect( buttonBox->button( QDialogButtonBox::Apply ), SIGNAL( clicked() ), this, SLOT( apply() ) );
connect( sliderTransparency, SIGNAL( valueChanged( int ) ), this, SLOT( sliderTransparency_valueChanged( int ) ) );
// enable or disable Build Pyramids button depending on selection in pyramid list
connect( lbxPyramidResolutions, SIGNAL( itemSelectionChanged() ), this, SLOT( toggleBuildPyramidsButton() ) );
// set up the scale based layer visibility stuff....
chkUseScaleDependentRendering->setChecked( lyr->hasScaleBasedVisibility() );
leMinimumScale->setText( QString::number( lyr->minimumScale(), 'f' ) );
leMinimumScale->setValidator( new QDoubleValidator( 0, std::numeric_limits<float>::max(), 1000, this ) );
leMaximumScale->setText( QString::number( lyr->maximumScale(), 'f' ) );
leMaximumScale->setValidator( new QDoubleValidator( 0, std::numeric_limits<float>::max(), 1000, this ) );
leNoDataValue->setValidator( new QDoubleValidator( -std::numeric_limits<double>::max(), std::numeric_limits<double>::max(), 1000, this ) );
// build GUI components
QIcon myPyramidPixmap( QgisApp::getThemeIcon( "/mIconPyramid.png" ) );
QIcon myNoPyramidPixmap( QgisApp::getThemeIcon( "/mIconNoPyramid.png" ) );
pbnAddValuesManually->setIcon( QgisApp::getThemeIcon( "/mActionNewAttribute.png" ) );
pbnAddValuesFromDisplay->setIcon( QgisApp::getThemeIcon( "/mActionContextHelp.png" ) );
pbnRemoveSelectedRow->setIcon( QgisApp::getThemeIcon( "/mActionDeleteAttribute.png" ) );
pbnDefaultValues->setIcon( QgisApp::getThemeIcon( "/mActionCopySelected.png" ) );
pbnImportTransparentPixelValues->setIcon( QgisApp::getThemeIcon( "/mActionFileOpen.png" ) );
pbnExportTransparentPixelValues->setIcon( QgisApp::getThemeIcon( "/mActionFileSave.png" ) );
mSaveAsImageButton->setIcon( QgisApp::getThemeIcon( "/mActionFileSave.png" ) );
mMapCanvas = theCanvas;
mPixelSelectorTool = 0;
if ( mMapCanvas )
{
mPixelSelectorTool = new QgsMapToolEmitPoint( theCanvas );
connect( mPixelSelectorTool, SIGNAL( canvasClicked( const QgsPoint&, Qt::MouseButton ) ), this, SLOT( pixelSelected( const QgsPoint& ) ) );
}
else
{
pbnAddValuesFromDisplay->setEnabled( false );
}
if ( !mRasterLayer )
{
return;
}
QgsRasterDataProvider* provider = mRasterLayer->dataProvider();
// Only do pyramids if dealing directly with GDAL.
if ( provider->capabilities() & QgsRasterDataProvider::BuildPyramids )
{
QgsRasterLayer::RasterPyramidList myPyramidList = mRasterLayer->buildPyramidList();
QgsRasterLayer::RasterPyramidList::iterator myRasterPyramidIterator;
for ( myRasterPyramidIterator = myPyramidList.begin();
myRasterPyramidIterator != myPyramidList.end();
++myRasterPyramidIterator )
{
if ( myRasterPyramidIterator->exists )
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QString( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
else
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myNoPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QString( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
}
}
else
{
// disable Pyramids tab completely
tabPagePyramids->setEnabled( false );
// disable Histogram tab completely
tabPageHistogram->setEnabled( false );
}
QgsDebugMsg( "Setting crs to " + mRasterLayer->crs().toWkt() );
QgsDebugMsg( "Setting crs to " + mRasterLayer->crs().authid() + " - " + mRasterLayer->crs().description() );
leSpatialRefSys->setText( mRasterLayer->crs().authid() + " - " + mRasterLayer->crs().description() );
leSpatialRefSys->setCursorPosition( 0 );
// Set text for pyramid info box
QString pyramidFormat( "<h2>%1</h2><p>%2 %3 %4</p><b><font color='red'><p>%5</p><p>%6</p>" );
QString pyramidHeader = tr( "Description" );
QString pyramidSentence1 = tr( "Large resolution raster layers can slow navigation in QGIS." );
QString pyramidSentence2 = tr( "By creating lower resolution copies of the data (pyramids) performance can be considerably improved as QGIS selects the most suitable resolution to use depending on the level of zoom." );
QString pyramidSentence3 = tr( "You must have write access in the directory where the original data is stored to build pyramids." );
QString pyramidSentence4 = tr( "Please note that building internal pyramids may alter the original data file and once created they cannot be removed!" );
QString pyramidSentence5 = tr( "Please note that building internal pyramids could corrupt your image - always make a backup of your data first!" );
tePyramidDescription->setHtml( pyramidFormat.arg( pyramidHeader ).arg( pyramidSentence1 )
.arg( pyramidSentence2 ).arg( pyramidSentence3 )
.arg( pyramidSentence4 ).arg( pyramidSentence5 ) );
QSettings settings;
restoreGeometry( settings.value( "/Windows/RasterLayerProperties/geometry" ).toByteArray() );
tabBar->setCurrentIndex( settings.value( "/Windows/RasterLayerProperties/row" ).toInt() );
setWindowTitle( tr( "Layer Properties - %1" ).arg( lyr->name() ) );
int myHistogramTab = 5;
if ( tabBar->currentIndex() == myHistogramTab )
{
refreshHistogram();
}
tableTransparency->horizontalHeader()->setResizeMode( 0, QHeaderView::Stretch );
tableTransparency->horizontalHeader()->setResizeMode( 1, QHeaderView::Stretch );
//resampling
const QgsRasterRenderer* renderer = mRasterLayer->renderer();
mZoomedInResamplingComboBox->insertItem( 0, tr( "Nearest neighbour" ) );
mZoomedInResamplingComboBox->insertItem( 1, tr( "Bilinear" ) );
mZoomedInResamplingComboBox->insertItem( 2, tr( "Cubic" ) );
mZoomedOutResamplingComboBox->insertItem( 0, tr( "Nearest neighbour" ) );
mZoomedOutResamplingComboBox->insertItem( 1, tr( "Average" ) );
//set combo boxes to current resampling types
if ( renderer )
{
//invert color map
if ( renderer->invertColor() )
{
mInvertColorMapCheckBox->setCheckState( Qt::Checked );
}
const QgsRasterResampler* zoomedInResampler = renderer->zoomedInResampler();
if ( zoomedInResampler )
{
if ( zoomedInResampler->type() == "bilinear" )
{
mZoomedInResamplingComboBox->setCurrentIndex( 1 );
}
else if ( zoomedInResampler->type() == "cubic" )
{
mZoomedInResamplingComboBox->setCurrentIndex( 2 );
}
}
else
{
mZoomedInResamplingComboBox->setCurrentIndex( 0 );
}
const QgsRasterResampler* zoomedOutResampler = renderer->zoomedOutResampler();
if ( zoomedOutResampler )
{
if ( zoomedOutResampler->type() == "bilinear" ) //bilinear resampler does averaging when zooming out
{
mZoomedOutResamplingComboBox->setCurrentIndex( 1 );
}
}
else
{
mZoomedOutResamplingComboBox->setCurrentIndex( 0 );
}
mMaximumOversamplingSpinBox->setValue( renderer->maxOversampling() );
}
//transparency band
if ( provider )
{
cboxTransparencyBand->addItem( tr( "None" ), -1 );
int nBands = provider->bandCount();
QString bandName;
for ( int i = 1; i <= nBands; ++i ) //band numbering seem to start at 1
{
bandName = provider->colorInterpretationName( i );
if ( bandName == "Undefined" )
{
cboxTransparencyBand->addItem( provider->generateBandName( i ), i );
}
else
{
cboxTransparencyBand->addItem( bandName, i );
}
}
if ( renderer )
{
cboxTransparencyBand->setCurrentIndex( cboxTransparencyBand->findData( renderer->alphaBand() ) );
}
}
//insert renderer widgets into registry
QgsRasterRendererRegistry::instance()->insertWidgetFunction( "paletted", QgsPalettedRendererWidget::create );
QgsRasterRendererRegistry::instance()->insertWidgetFunction( "multibandcolor", QgsMultiBandColorRendererWidget::create );
QgsRasterRendererRegistry::instance()->insertWidgetFunction( "singlebandpseudocolor", QgsSingleBandPseudoColorRendererWidget::create );
QgsRasterRendererRegistry::instance()->insertWidgetFunction( "singlebandgray", QgsSingleBandGrayRendererWidget::create );
//fill available renderers into combo box
QList< QgsRasterRendererRegistryEntry > rendererEntries = QgsRasterRendererRegistry::instance()->entries();
QList< QgsRasterRendererRegistryEntry >::const_iterator rendererIt = rendererEntries.constBegin();
for ( ; rendererIt != rendererEntries.constEnd(); ++rendererIt )
{
mRenderTypeComboBox->addItem( rendererIt->visibleName, rendererIt->name );
}
if ( renderer )
{
QString rendererType = renderer->type();
int widgetIndex = mRenderTypeComboBox->findData( rendererType );
if ( widgetIndex != -1 )
{
mRenderTypeComboBox->setCurrentIndex( widgetIndex );
}
//prevent change between singleband color renderer and the other renderers
if ( rendererType == "singlebandcolordata" )
{
mRenderTypeComboBox->setEnabled( false );
}
else
{
mRenderTypeComboBox->removeItem( mRenderTypeComboBox->findData( "singlebandcolordata" ) );
}
}
on_mRenderTypeComboBox_currentIndexChanged( mRenderTypeComboBox->currentIndex() );
// update based on lyr's current state
sync();
} // QgsRasterLayerProperties ctor
QgsRasterLayerProperties::~QgsRasterLayerProperties()
{
QSettings settings;
settings.setValue( "/Windows/RasterLayerProperties/geometry", saveGeometry() );
settings.setValue( "/Windows/RasterLayerProperties/row", tabBar->currentIndex() );
if ( mPixelSelectorTool )
{
delete mPixelSelectorTool;
}
}
void QgsRasterLayerProperties::populateTransparencyTable( QgsRasterRenderer* renderer )
{
QgsDebugMsg( "entering." );
if ( !mRasterLayer )
{
return;
}
if ( !renderer )
{
return;
}
tableTransparency->clear();
tableTransparency->setColumnCount( 0 );
tableTransparency->setRowCount( 0 );
QList<int> bandList = renderer->usesBands();
tableTransparency->setColumnCount( bandList.size() + 1 );
for ( int i = 0; i < bandList.size(); ++i )
{
tableTransparency->setHorizontalHeaderItem( i, new QTableWidgetItem( QString::number( bandList.at( i ) ) ) );
}
tableTransparency->setHorizontalHeaderItem( bandList.size(), new QTableWidgetItem( tr( "Percent Transparent" ) ) );
const QgsRasterTransparency* rasterTransparency = renderer->rasterTransparency();
if ( !rasterTransparency )
{
return;
}
if ( bandList.count() == 1 )
{
QList<QgsRasterTransparency::TransparentSingleValuePixel> pixelList = rasterTransparency->transparentSingleValuePixelList();
for ( int i = 0; i < pixelList.size(); ++i )
{
tableTransparency->insertRow( i );
QTableWidgetItem* grayItem = new QTableWidgetItem( QString::number( pixelList[i].pixelValue ) );
QTableWidgetItem* percentItem = new QTableWidgetItem( QString::number( pixelList[i].percentTransparent ) );
tableTransparency->setItem( i, 0, grayItem );
tableTransparency->setItem( i, 1, percentItem );
}
}
else if ( bandList.count() == 3 )
{
QList<QgsRasterTransparency::TransparentThreeValuePixel> pixelList = rasterTransparency->transparentThreeValuePixelList();
for ( int i = 0; i < pixelList.size(); ++i )
{
tableTransparency->insertRow( i );
QTableWidgetItem* redItem = new QTableWidgetItem( QString::number( pixelList[i].red ) );
QTableWidgetItem* greenItem = new QTableWidgetItem( QString::number( pixelList[i].green ) );
QTableWidgetItem* blueItem = new QTableWidgetItem( QString::number( pixelList[i].blue ) );
QTableWidgetItem* transparentItem = new QTableWidgetItem( QString::number( pixelList[i].percentTransparent ) );
tableTransparency->setItem( i, 0, redItem );
tableTransparency->setItem( i, 1, greenItem );
tableTransparency->setItem( i, 2, blueItem );
tableTransparency->setItem( i, 3, transparentItem );
}
}
tableTransparency->resizeColumnsToContents();
tableTransparency->resizeRowsToContents();
}
void QgsRasterLayerProperties::setRendererWidget( const QString& rendererName )
{
QgsRasterRendererWidget* oldWidget = mRendererWidget;
QgsRasterRendererRegistryEntry rendererEntry;
if ( QgsRasterRendererRegistry::instance()->rendererData( rendererName, rendererEntry ) )
{
if ( rendererEntry.widgetCreateFunction ) //single band color data renderer e.g. has no widget
{
mRendererWidget = ( *rendererEntry.widgetCreateFunction )( mRasterLayer );
mRendererStackedWidget->addWidget( mRendererWidget );
if ( oldWidget )
{
//compare used bands in new and old renderer and reset transparency dialog if different
QgsRasterRenderer* oldRenderer = oldWidget->renderer();
QgsRasterRenderer* newRenderer = mRendererWidget->renderer();
QList<int> oldBands = oldRenderer->usesBands();
QList<int> newBands = newRenderer->usesBands();
if ( oldBands != newBands )
{
populateTransparencyTable( newRenderer );
}
delete oldRenderer;
delete newRenderer;
}
}
}
delete oldWidget;
}
/**
@note moved from ctor
Previously this dialog was created anew with each right-click pop-up menu
invokation. Changed so that the dialog always exists after first
invocation, and is just re-synchronized with its layer's state when
re-shown.
*/
void QgsRasterLayerProperties::sync()
{
QSettings myQSettings;
if ( mRasterLayer->dataProvider()->dataType( 1 ) == QgsRasterDataProvider::ARGBDataType )
{
gboxNoDataValue->setEnabled( false );
gboxCustomTransparency->setEnabled( false );
tabBar->setCurrentWidget( tabPageMetadata );
}
if ( !( mRasterLayer->dataProvider()->capabilities() & QgsRasterDataProvider::BuildPyramids ) )
{
if ( tabPagePyramids != NULL )
{
delete tabPagePyramids;
tabPagePyramids = NULL;
}
}
if ( !( mRasterLayer->dataProvider()->capabilities() & QgsRasterDataProvider::Histogram ) )
{
if ( tabPageHistogram != NULL )
{
delete tabPageHistogram;
tabPageHistogram = NULL;
}
}
QgsDebugMsg( "populate transparency tab" );
/*
* Transparent Pixel Tab
*/
//set the transparency slider
QgsRasterRenderer* renderer = mRasterLayer->renderer();
if ( renderer )
{
sliderTransparency->setValue(( 1.0 - renderer->opacity() ) * 255 );
//update the transparency percentage label
sliderTransparency_valueChanged(( 1.0 - renderer->opacity() ) * 255 );
int myIndex = renderer->alphaBand();
if ( -1 != myIndex )
{
cboxTransparencyBand->setCurrentIndex( myIndex );
}
else
{
cboxTransparencyBand->setCurrentIndex( cboxTransparencyBand->findText( TRSTRING_NOT_SET ) );
}
}
//add current NoDataValue to NoDataValue line edit
if ( mRasterLayer->isNoDataValueValid() )
{
leNoDataValue->insert( QString::number( mRasterLayer->noDataValue(), 'g' ) );
}
else
{
leNoDataValue->insert( "" );
}
populateTransparencyTable( mRasterLayer->renderer() );
QgsDebugMsg( "populate colormap tab" );
/*
* Transparent Pixel Tab
*/
QgsDebugMsg( "populate general tab" );
/*
* General Tab
*/
//these properties (layer name and label) are provided by the qgsmaplayer superclass
leLayerSource->setText( mRasterLayer->source() );
leDisplayName->setText( mRasterLayer->name() );
//display the raster dimensions and no data value
if ( mRasterLayer->dataProvider()->capabilities() & QgsRasterDataProvider::Size )
{
lblColumns->setText( tr( "Columns: %1" ).arg( mRasterLayer->width() ) );
lblRows->setText( tr( "Rows: %1" ).arg( mRasterLayer->height() ) );
}
else
{
// TODO: Account for fixedWidth and fixedHeight WMS layers
lblColumns->setText( tr( "Columns: " ) + tr( "n/a" ) );
lblRows->setText( tr( "Rows: " ) + tr( "n/a" ) );
}
if ( mRasterLayer->dataProvider()->dataType( 1 ) == QgsRasterDataProvider::ARGBDataType )
{
lblNoData->setText( tr( "No-Data Value: " ) + tr( "n/a" ) );
}
else
{
if ( mRasterLayer->isNoDataValueValid() )
{
lblNoData->setText( tr( "No-Data Value: %1" ).arg( mRasterLayer->noDataValue() ) );
}
else
{
lblNoData->setText( tr( "No-Data Value: Not Set" ) );
}
}
//get the thumbnail for the layer
QPixmap myQPixmap = QPixmap( pixmapThumbnail->width(), pixmapThumbnail->height() );
mRasterLayer->thumbnailAsPixmap( &myQPixmap );
pixmapThumbnail->setPixmap( myQPixmap );
//update the legend pixmap on this dialog
//pixmapLegend->setPixmap( mRasterLayer->legendAsPixmap() );
pixmapLegend->setScaledContents( true );
pixmapLegend->repaint();
//set the palette pixmap
//pixmapPalette->setPixmap( mRasterLayer->paletteAsPixmap( mRasterLayer->bandNumber( mRasterLayer->grayBandName() ) ) );
pixmapPalette->setScaledContents( true );
pixmapPalette->repaint();
QgsDebugMsg( "populate metadata tab" );
/*
* Metadata Tab
*/
//populate the metadata tab's text browser widget with gdal metadata info
QString myStyle = QgsApplication::reportStyleSheet();
txtbMetadata->document()->setDefaultStyleSheet( myStyle );
txtbMetadata->setHtml( mRasterLayer->metadata() );
mLayerTitleLineEdit->setText( mRasterLayer->title() );
mLayerAbstractTextEdit->setPlainText( mRasterLayer->abstract() );
} // QgsRasterLayerProperties::sync()
/*
*
* PUBLIC AND PRIVATE SLOTS
*
*/
void QgsRasterLayerProperties::apply()
{
QgsDebugMsg( "apply processing symbology tab" );
/*
* Symbology Tab
*/
//set whether the layer histogram should be inverted
//mRasterLayer->setInvertHistogram( cboxInvertColorMap->isChecked() );
QgsDebugMsg( "processing transparency tab" );
/*
* Transparent Pixel Tab
*/
//set NoDataValue
bool myDoubleOk = false;
if ( "" != leNoDataValue->text() )
{
double myNoDataValue = leNoDataValue->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
mRasterLayer->setNoDataValue( myNoDataValue );
}
}
//set renderer from widget
QgsRasterRendererWidget* rendererWidget = dynamic_cast<QgsRasterRendererWidget*>( mRendererStackedWidget->currentWidget() );
if ( rendererWidget )
{
mRasterLayer->setRenderer( rendererWidget->renderer() );
}
//transparency settings
QgsRasterRenderer* rasterRenderer = mRasterLayer->renderer();
rasterRenderer->setAlphaBand( cboxTransparencyBand->itemData( cboxTransparencyBand->currentIndex() ).toInt() );
//Walk through each row in table and test value. If not valid set to 0.0 and continue building transparency list
QgsRasterTransparency* rasterTransparency = new QgsRasterTransparency();
if ( tableTransparency->columnCount() == 4 )
{
double myTransparentValue;
double myPercentTransparent;
QgsRasterTransparency::TransparentThreeValuePixel myTransparentPixel;
QList<QgsRasterTransparency::TransparentThreeValuePixel> myTransparentThreeValuePixelList;
for ( int myListRunner = 0; myListRunner < tableTransparency->rowCount(); myListRunner++ )
{
if ( !tableTransparency->item( myListRunner, 0 ) )
{
myTransparentPixel.red = 0.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "0.0" );
tableTransparency->setItem( myListRunner, 0, newItem );
}
else
{
myTransparentValue = tableTransparency->item( myListRunner, 0 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
myTransparentPixel.red = myTransparentValue;
}
else
{
myTransparentPixel.red = 0.0;
tableTransparency->item( myListRunner, 0 )->setText( "0.0" );
}
}
if ( !tableTransparency->item( myListRunner, 1 ) )
{
myTransparentPixel.green = 0.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "0.0" );
tableTransparency->setItem( myListRunner, 1, newItem );
}
else
{
myTransparentValue = tableTransparency->item( myListRunner, 1 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
myTransparentPixel.green = myTransparentValue;
}
else
{
myTransparentPixel.green = 0.0;
tableTransparency->item( myListRunner, 1 )->setText( "0.0" );
}
}
if ( !tableTransparency->item( myListRunner, 2 ) )
{
myTransparentPixel.blue = 0.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "0.0" );
tableTransparency->setItem( myListRunner, 2, newItem );
}
else
{
myTransparentValue = tableTransparency->item( myListRunner, 2 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
myTransparentPixel.blue = myTransparentValue;
}
else
{
myTransparentPixel.blue = 0.0;
tableTransparency->item( myListRunner, 2 )->setText( "0.0" );
}
}
if ( !tableTransparency->item( myListRunner, 3 ) )
{
myTransparentPixel.percentTransparent = 100.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "100.0" );
tableTransparency->setItem( myListRunner, 3, newItem );
}
else
{
QString myNumberFormatter;
myPercentTransparent = tableTransparency->item( myListRunner, 3 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
if ( myPercentTransparent > 100.0 )
myTransparentPixel.percentTransparent = 100.0;
else if ( myPercentTransparent < 0.0 )
myTransparentPixel.percentTransparent = 0.0;
else
myTransparentPixel.percentTransparent = myPercentTransparent;
tableTransparency->item( myListRunner, 3 )->setText( myNumberFormatter.sprintf( "%.2f", myTransparentPixel.percentTransparent ) );
}
else
{
myTransparentPixel.percentTransparent = 100.0;
tableTransparency->item( myListRunner, 3 )->setText( "100.0" );
}
}
myTransparentThreeValuePixelList.append( myTransparentPixel );
}
rasterTransparency->setTransparentThreeValuePixelList( myTransparentThreeValuePixelList );
}
else if ( tableTransparency->columnCount() == 2 )
{
double myTransparentValue;
double myPercentTransparent;
QgsRasterTransparency::TransparentSingleValuePixel myTransparentPixel;
QList<QgsRasterTransparency::TransparentSingleValuePixel> myTransparentSingleValuePixelList;
for ( int myListRunner = 0; myListRunner < tableTransparency->rowCount(); myListRunner++ )
{
if ( !tableTransparency->item( myListRunner, 0 ) )
{
myTransparentPixel.pixelValue = 0.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "0.0" );
tableTransparency->setItem( myListRunner, 0, newItem );
}
else
{
myTransparentValue = tableTransparency->item( myListRunner, 0 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
myTransparentPixel.pixelValue = myTransparentValue;
}
else
{
myTransparentPixel.pixelValue = 0.0;
tableTransparency->item( myListRunner, 0 )->setText( "0.0" );
}
}
if ( !tableTransparency->item( myListRunner, 1 ) )
{
myTransparentPixel.percentTransparent = 100.0;
QTableWidgetItem* newItem = new QTableWidgetItem( "100.0" );
tableTransparency->setItem( myListRunner, 1, newItem );
}
else
{
QString myNumberFormatter;
myPercentTransparent = tableTransparency->item( myListRunner, 1 )->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
if ( myPercentTransparent > 100.0 )
myTransparentPixel.percentTransparent = 100.0;
else if ( myPercentTransparent < 0.0 )
myTransparentPixel.percentTransparent = 0.0;
else
myTransparentPixel.percentTransparent = myPercentTransparent;
tableTransparency->item( myListRunner, 1 )->setText( myNumberFormatter.sprintf( "%.2f", myTransparentPixel.percentTransparent ) );
}
else
{
myTransparentPixel.percentTransparent = 100.0;
tableTransparency->item( myListRunner, 1 )->setText( "100.0" );
}
}
myTransparentSingleValuePixelList.append( myTransparentPixel );
}
rasterTransparency->setTransparentSingleValuePixelList( myTransparentSingleValuePixelList );
}
rasterRenderer->setRasterTransparency( rasterTransparency );
//set global transparency
rasterRenderer->setOpacity(( 255 - sliderTransparency->value() ) / 255.0 );
//invert color map
rasterRenderer->setInvertColor( mInvertColorMapCheckBox->isChecked() );
QgsDebugMsg( "processing general tab" );
/*
* General Tab
*/
mRasterLayer->setLayerName( leDisplayName->text() );
// set up the scale based layer visibility stuff....
mRasterLayer->toggleScaleBasedVisibility( chkUseScaleDependentRendering->isChecked() );
mRasterLayer->setMinimumScale( leMinimumScale->text().toFloat() );
mRasterLayer->setMaximumScale( leMaximumScale->text().toFloat() );
//update the legend pixmap
pixmapLegend->setPixmap( mRasterLayer->legendAsPixmap() );
pixmapLegend->setScaledContents( true );
pixmapLegend->repaint();
QgsRasterResampler* zoomedInResampler = 0;
QString zoomedInResamplingMethod = mZoomedInResamplingComboBox->currentText();
if ( zoomedInResamplingMethod == tr( "Bilinear" ) )
{
zoomedInResampler = new QgsBilinearRasterResampler();
}
else if ( zoomedInResamplingMethod == tr( "Cubic" ) )
{
zoomedInResampler = new QgsCubicRasterResampler();
}
if ( rasterRenderer )
{
rasterRenderer->setZoomedInResampler( zoomedInResampler );
}
//raster resampling
QgsRasterResampler* zoomedOutResampler = 0;
QString zoomedOutResamplingMethod = mZoomedOutResamplingComboBox->currentText();
if ( zoomedOutResamplingMethod == tr( "Average" ) )
{
zoomedOutResampler = new QgsBilinearRasterResampler();
}
if ( rasterRenderer )
{
rasterRenderer->setZoomedOutResampler( zoomedOutResampler );
}
if ( rasterRenderer )
{
rasterRenderer->setMaxOversampling( mMaximumOversamplingSpinBox->value() );
}
//get the thumbnail for the layer
QPixmap myQPixmap = QPixmap( pixmapThumbnail->width(), pixmapThumbnail->height() );
mRasterLayer->thumbnailAsPixmap( &myQPixmap );
pixmapThumbnail->setPixmap( myQPixmap );
mRasterLayer->setTitle( mLayerTitleLineEdit->text() );
mRasterLayer->setAbstract( mLayerAbstractTextEdit->toPlainText() );
// update symbology
emit refreshLegend( mRasterLayer->id(), false );
//no need to delete the old one, maplayer will do it if needed
mRasterLayer->setCacheImage( 0 );
//make sure the layer is redrawn
mRasterLayer->triggerRepaint();
// notify the project we've made a change
QgsProject::instance()->dirty( true );
}//apply
void QgsRasterLayerProperties::on_buttonBuildPyramids_clicked()
{
connect( mRasterLayer, SIGNAL( progressUpdate( int ) ), mPyramidProgress, SLOT( setValue( int ) ) );
//
// Go through the list marking any files that are selected in the listview
// as true so that we can generate pyramids for them.
//
QgsRasterLayer::RasterPyramidList myPyramidList = mRasterLayer->buildPyramidList();
for ( int myCounterInt = 0; myCounterInt < lbxPyramidResolutions->count(); myCounterInt++ )
{
QListWidgetItem *myItem = lbxPyramidResolutions->item( myCounterInt );
//mark to be pyramided
myPyramidList[myCounterInt].build = myItem->isSelected() || myPyramidList[myCounterInt].exists;
}
//
// Ask raster layer to build the pyramids
//
// let the user know we're going to possibly be taking a while
QApplication::setOverrideCursor( Qt::WaitCursor );
bool myBuildInternalFlag = cbxInternalPyramids->isChecked();
QString res = mRasterLayer->buildPyramids(
myPyramidList,
cboResamplingMethod->currentText(),
myBuildInternalFlag );
QApplication::restoreOverrideCursor();
mPyramidProgress->setValue( 0 );
buttonBuildPyramids->setEnabled( false );
disconnect( mRasterLayer, SIGNAL( progressUpdate( int ) ), mPyramidProgress, SLOT( setValue( int ) ) );
if ( !res.isNull() )
{
if ( res == "ERROR_WRITE_ACCESS" )
{
QMessageBox::warning( this, tr( "Write access denied" ),
tr( "Write access denied. Adjust the file permissions and try again." ) );
}
else if ( res == "ERROR_WRITE_FORMAT" )
{
QMessageBox::warning( this, tr( "Building pyramids failed." ),
tr( "The file was not writable. Some formats do not "
"support pyramid overviews. Consult the GDAL documentation if in doubt." ) );
}
else if ( res == "FAILED_NOT_SUPPORTED" )
{
QMessageBox::warning( this, tr( "Building pyramids failed." ),
tr( "Building pyramid overviews is not supported on this type of raster." ) );
}
else if ( res == "ERROR_JPEG_COMPRESSION" )
{
QMessageBox::warning( this, tr( "Building pyramids failed." ),
tr( "Building internal pyramid overviews is not supported on raster layers with JPEG compression and your current libtiff library." ) );
}
else if ( res == "ERROR_VIRTUAL" )
{
QMessageBox::warning( this, tr( "Building pyramids failed." ),
tr( "Building pyramid overviews is not supported on this type of raster." ) );
}
}
//
// repopulate the pyramids list
//
lbxPyramidResolutions->clear();
// Need to rebuild list as some or all pyramids may have failed to build
myPyramidList = mRasterLayer->buildPyramidList();
QIcon myPyramidPixmap( QgisApp::getThemeIcon( "/mIconPyramid.png" ) );
QIcon myNoPyramidPixmap( QgisApp::getThemeIcon( "/mIconNoPyramid.png" ) );
QgsRasterLayer::RasterPyramidList::iterator myRasterPyramidIterator;
for ( myRasterPyramidIterator = myPyramidList.begin();
myRasterPyramidIterator != myPyramidList.end();
++myRasterPyramidIterator )
{
if ( myRasterPyramidIterator->exists )
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QString( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
else
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myNoPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QString( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
}
//update the legend pixmap
pixmapLegend->setPixmap( mRasterLayer->legendAsPixmap() );
pixmapLegend->setScaledContents( true );
pixmapLegend->repaint();
//populate the metadata tab's text browser widget with gdal metadata info
QString myStyle = QgsApplication::reportStyleSheet();
txtbMetadata->setHtml( mRasterLayer->metadata() );
txtbMetadata->document()->setDefaultStyleSheet( myStyle );
}
void QgsRasterLayerProperties::on_mRenderTypeComboBox_currentIndexChanged( int index )
{
if ( index < 0 )
{
return;
}
QString rendererName = mRenderTypeComboBox->itemData( index ).toString();
setRendererWidget( rendererName );
}
void QgsRasterLayerProperties::on_pbnAddValuesFromDisplay_clicked()
{
if ( mMapCanvas && mPixelSelectorTool )
{
mMapCanvas->setMapTool( mPixelSelectorTool );
//Need to work around the modality of the dialog but can not just hide() it.
setModal( false );
lower();
}
}
void QgsRasterLayerProperties::on_pbnAddValuesManually_clicked()
{
tableTransparency->insertRow( tableTransparency->rowCount() );
tableTransparency->setItem( tableTransparency->rowCount() - 1, tableTransparency->columnCount() - 1, new QTableWidgetItem( "100.0" ) );
}
void QgsRasterLayerProperties::on_pbnChangeSpatialRefSys_clicked()
{
QgsGenericProjectionSelector * mySelector = new QgsGenericProjectionSelector( this );
mySelector->setSelectedCrsId( mRasterLayer->crs().srsid() );
if ( mySelector->exec() )
{
QgsCoordinateReferenceSystem srs( mySelector->selectedCrsId(), QgsCoordinateReferenceSystem::InternalCrsId );
mRasterLayer->setCrs( srs );
}
else
{
QApplication::restoreOverrideCursor();
}
delete mySelector;
leSpatialRefSys->setText( mRasterLayer->crs().authid() + " - " + mRasterLayer->crs().description() );
leSpatialRefSys->setCursorPosition( 0 );
}
void QgsRasterLayerProperties::on_pbnDefaultValues_clicked()
{
if ( !mRendererWidget )
{
return;
}
QgsRasterRenderer* r = mRendererWidget->renderer();
if ( !r )
{