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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 <typeinfo>
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgsbilinearrasterresampler.h"
#include "qgsbrightnesscontrastfilter.h"
#include "qgscontexthelp.h"
#include "qgscontrastenhancement.h"
#include "qgscoordinatetransform.h"
#include "qgscubicrasterresampler.h"
#include "qgsgenericprojectionselector.h"
#include "qgslogger.h"
#include "qgsmapcanvas.h"
#include "qgsmaplayerstyleguiutils.h"
#include "qgsmaptoolemitpoint.h"
#include "qgsmaptopixel.h"
#include "qgsmultibandcolorrenderer.h"
#include "qgsmultibandcolorrendererwidget.h"
#include "qgspalettedrendererwidget.h"
#include "qgsproject.h"
#include "qgsrasterbandstats.h"
#include "qgsrasterdataprovider.h"
#include "qgsrasterhistogramwidget.h"
#include "qgsrasteridentifyresult.h"
#include "qgsrasterlayer.h"
#include "qgsrasterlayerproperties.h"
#include "qgsrasterpyramid.h"
#include "qgsrasterrange.h"
#include "qgsrasterrenderer.h"
#include "qgsrasterrendererregistry.h"
#include "qgsrasterresamplefilter.h"
#include "qgsrastertransparency.h"
#include "qgssinglebandgrayrendererwidget.h"
#include "qgssinglebandpseudocolorrendererwidget.h"
#include "qgshuesaturationfilter.h"
#include "qgshillshaderendererwidget.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>
QgsRasterLayerProperties::QgsRasterLayerProperties( QgsMapLayer* lyr, QgsMapCanvas* theCanvas, QWidget *parent, Qt::WindowFlags fl )
: QgsOptionsDialogBase( QStringLiteral( "RasterLayerProperties" ), parent, fl )
// Constant that signals property not used.
, TRSTRING_NOT_SET( tr( "Not Set" ) )
, mDefaultStandardDeviation( 0 )
, mDefaultRedBand( 0 )
, mDefaultGreenBand( 0 )
, mDefaultBlueBand( 0 )
, mRasterLayer( qobject_cast<QgsRasterLayer *>( lyr ) )
, mRendererWidget( nullptr )
, mGradientHeight( 0.0 )
, mGradientWidth( 0.0 )
, mMapCanvas( theCanvas )
, mHistogramWidget( nullptr )
{
mGrayMinimumMaximumEstimated = true;
mRGBMinimumMaximumEstimated = true;
setupUi( this );
// QgsOptionsDialogBase handles saving/restoring of geometry, splitter and current tab states,
// switching vertical tabs between icon/text to icon-only modes (splitter collapsed to left),
// and connecting QDialogButtonBox's accepted/rejected signals to dialog's accept/reject slots
initOptionsBase( false );
QPushButton* b = new QPushButton( tr( "Style" ) );
QMenu* m = new QMenu( this );
m->addAction( tr( "Load Style..." ), this, SLOT( loadStyle_clicked() ) );
m->addAction( tr( "Save Style..." ), this, SLOT( saveStyleAs_clicked() ) );
m->addSeparator();
m->addAction( tr( "Save as Default" ), this, SLOT( saveDefaultStyle_clicked() ) );
m->addAction( tr( "Restore Default" ), this, SLOT( loadDefaultStyle_clicked() ) );
b->setMenu( m );
connect( m, SIGNAL( aboutToShow() ), this, SLOT( aboutToShowStyleMenu() ) );
buttonBox->addButton( b, QDialogButtonBox::ResetRole );
connect( lyr->styleManager(), SIGNAL( currentStyleChanged( QString ) ), this, SLOT( syncToLayer() ) );
connect( this, SIGNAL( accepted() ), this, SLOT( apply() ) );
connect( this, SIGNAL( rejected() ), this, SLOT( onCancel() ) );
connect( buttonBox->button( QDialogButtonBox::Apply ), SIGNAL( clicked() ), this, SLOT( apply() ) );
connect( mOptionsStackedWidget, SIGNAL( currentChanged( int ) ), this, SLOT( mOptionsStackedWidget_CurrentChanged( int ) ) );
connect( sliderTransparency, SIGNAL( valueChanged( int ) ), this, SLOT( sliderTransparency_valueChanged( int ) ) );
// brightness/contrast controls
connect( mSliderBrightness, SIGNAL( valueChanged( int ) ), mBrightnessSpinBox, SLOT( setValue( int ) ) );
connect( mBrightnessSpinBox, SIGNAL( valueChanged( int ) ), mSliderBrightness, SLOT( setValue( int ) ) );
connect( mSliderContrast, SIGNAL( valueChanged( int ) ), mContrastSpinBox, SLOT( setValue( int ) ) );
connect( mContrastSpinBox, SIGNAL( valueChanged( int ) ), mSliderContrast, SLOT( setValue( int ) ) );
// Connect saturation slider and spin box
connect( sliderSaturation, SIGNAL( valueChanged( int ) ), spinBoxSaturation, SLOT( setValue( int ) ) );
connect( spinBoxSaturation, SIGNAL( valueChanged( int ) ), sliderSaturation, SLOT( setValue( int ) ) );
// Connect colorize strength slider and spin box
connect( sliderColorizeStrength, SIGNAL( valueChanged( int ) ), spinColorizeStrength, SLOT( setValue( int ) ) );
connect( spinColorizeStrength, SIGNAL( valueChanged( int ) ), sliderColorizeStrength, SLOT( setValue( int ) ) );
// enable or disable saturation slider and spin box depending on grayscale combo choice
connect( comboGrayscale, SIGNAL( currentIndexChanged( int ) ), this, SLOT( toggleSaturationControls( int ) ) );
// enable or disable colorize colorbutton with colorize checkbox
connect( mColorizeCheck, SIGNAL( toggled( bool ) ), this, SLOT( toggleColorizeControls( bool ) ) );
// enable or disable Build Pyramids button depending on selection in pyramid list
connect( lbxPyramidResolutions, SIGNAL( itemSelectionChanged() ), this, SLOT( toggleBuildPyramidsButton() ) );
connect( mRefreshLayerCheckBox, &QCheckBox::toggled, mRefreshLayerIntervalSpinBox, &QDoubleSpinBox::setEnabled );
// set up the scale based layer visibility stuff....
mScaleRangeWidget->setMapCanvas( mMapCanvas );
chkUseScaleDependentRendering->setChecked( lyr->hasScaleBasedVisibility() );
mScaleRangeWidget->setScaleRange( 1.0 / lyr->maximumScale(), 1.0 / lyr->minimumScale() ); // caution: layer uses scale denoms, widget uses true scales
leNoDataValue->setValidator( new QDoubleValidator( -std::numeric_limits<double>::max(), std::numeric_limits<double>::max(), 1000, this ) );
// build GUI components
QIcon myPyramidPixmap( QgsApplication::getThemeIcon( "/mIconPyramid.png" ) );
QIcon myNoPyramidPixmap( QgsApplication::getThemeIcon( "/mIconNoPyramid.png" ) );
pbnAddValuesManually->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/symbologyAdd.svg" ) ) );
pbnAddValuesFromDisplay->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionContextHelp.png" ) ) );
pbnRemoveSelectedRow->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/symbologyRemove.svg" ) ) );
pbnDefaultValues->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionOpenTable.svg" ) ) );
pbnImportTransparentPixelValues->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionFileOpen.svg" ) ) );
pbnExportTransparentPixelValues->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionFileSave.svg" ) ) );
mPixelSelectorTool = nullptr;
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 && provider->capabilities() & QgsRasterDataProvider::BuildPyramids )
{
// initialize resampling methods
cboResamplingMethod->clear();
QPair<QString, QString> method;
Q_FOREACH ( method, QgsRasterDataProvider::pyramidResamplingMethods( mRasterLayer->providerType() ) )
{
cboResamplingMethod->addItem( method.second, method.first );
}
// keep it in sync with qgsrasterpyramidsoptionwidget.cpp
QString prefix = provider->name() + "/driverOptions/_pyramids/";
QSettings mySettings;
QString defaultMethod = mySettings.value( prefix + "resampling", "AVERAGE" ).toString();
int idx = cboResamplingMethod->findData( defaultMethod );
if ( idx >= 0 )
cboResamplingMethod->setCurrentIndex( idx );
// build pyramid list
QList< QgsRasterPyramid > myPyramidList = provider->buildPyramidList();
QList< QgsRasterPyramid >::iterator myRasterPyramidIterator;
for ( myRasterPyramidIterator = myPyramidList.begin();
myRasterPyramidIterator != myPyramidList.end();
++myRasterPyramidIterator )
{
if ( myRasterPyramidIterator->exists )
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QStringLiteral( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
else
{
lbxPyramidResolutions->addItem( new QListWidgetItem( myNoPyramidPixmap,
QString::number( myRasterPyramidIterator->xDim ) + QStringLiteral( " x " ) +
QString::number( myRasterPyramidIterator->yDim ) ) );
}
}
}
else
{
// disable Pyramids tab completely
mOptsPage_Pyramids->setEnabled( false );
}
// We can calculate histogram for all data sources but estimated only if
// size is unknown - could also be enabled if well supported (estimated histogram
// and and let user know that it is estimated)
if ( !provider || !( provider->capabilities() & QgsRasterDataProvider::Size ) )
{
// disable Histogram tab completely
mOptsPage_Histogram->setEnabled( false );
}
QgsDebugMsg( "Setting crs to " + mRasterLayer->crs().toWkt() );
QgsDebugMsg( "Setting crs to " + mRasterLayer->crs().authid() + " - " + mRasterLayer->crs().description() );
mCrsSelector->setCrs( mRasterLayer->crs() );
// Set text for pyramid info box
QString pyramidFormat( QStringLiteral( "<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,
pyramidSentence1,
pyramidSentence2,
pyramidSentence3,
pyramidSentence4,
pyramidSentence5 ) );
//resampling
mResamplingGroupBox->setSaveCheckedState( true );
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" ) );
const QgsRasterResampleFilter* resampleFilter = mRasterLayer->resampleFilter();
//set combo boxes to current resampling types
if ( resampleFilter )
{
const QgsRasterResampler* zoomedInResampler = resampleFilter->zoomedInResampler();
if ( zoomedInResampler )
{
if ( zoomedInResampler->type() == QLatin1String( "bilinear" ) )
{
mZoomedInResamplingComboBox->setCurrentIndex( 1 );
}
else if ( zoomedInResampler->type() == QLatin1String( "cubic" ) )
{
mZoomedInResamplingComboBox->setCurrentIndex( 2 );
}
}
else
{
mZoomedInResamplingComboBox->setCurrentIndex( 0 );
}
const QgsRasterResampler* zoomedOutResampler = resampleFilter->zoomedOutResampler();
if ( zoomedOutResampler )
{
if ( zoomedOutResampler->type() == QLatin1String( "bilinear" ) ) //bilinear resampler does averaging when zooming out
{
mZoomedOutResamplingComboBox->setCurrentIndex( 1 );
}
}
else
{
mZoomedOutResamplingComboBox->setCurrentIndex( 0 );
}
mMaximumOversamplingSpinBox->setValue( resampleFilter->maxOversampling() );
}
btnColorizeColor->setColorDialogTitle( tr( "Select color" ) );
btnColorizeColor->setContext( QStringLiteral( "symbology" ) );
// Hue and saturation color control
const QgsHueSaturationFilter* hueSaturationFilter = mRasterLayer->hueSaturationFilter();
//set hue and saturation controls to current values
if ( hueSaturationFilter )
{
sliderSaturation->setValue( hueSaturationFilter->saturation() );
comboGrayscale->setCurrentIndex(( int ) hueSaturationFilter->grayscaleMode() );
// Set initial state of saturation controls based on grayscale mode choice
toggleSaturationControls(( int )hueSaturationFilter->grayscaleMode() );
// Set initial state of colorize controls
mColorizeCheck->setChecked( hueSaturationFilter->colorizeOn() );
btnColorizeColor->setColor( hueSaturationFilter->colorizeColor() );
toggleColorizeControls( hueSaturationFilter->colorizeOn() );
sliderColorizeStrength->setValue( hueSaturationFilter->colorizeStrength() );
}
//blend mode
mBlendModeComboBox->setBlendMode( mRasterLayer->blendMode() );
//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->generateBandName( i );
QString colorInterp = provider->colorInterpretationName( i );
if ( colorInterp != QLatin1String( "Undefined" ) )
{
bandName.append( QStringLiteral( " (%1)" ).arg( colorInterp ) );
}
cboxTransparencyBand->addItem( bandName, i );
}
// Alpha band is set in sync()
#if 0
if ( renderer )
{
QgsDebugMsg( QString( "alphaBand = %1" ).arg( renderer->alphaBand() ) );
if ( renderer->alphaBand() > 0 )
{
cboxTransparencyBand->setCurrentIndex( cboxTransparencyBand->findData( renderer->alphaBand() ) );
}
}
#endif
}
// create histogram widget
mHistogramWidget = nullptr;
if ( mOptsPage_Histogram->isEnabled() )
{
mHistogramWidget = new QgsRasterHistogramWidget( mRasterLayer, mOptsPage_Histogram );
mHistogramStackedWidget->addWidget( mHistogramWidget );
}
//insert renderer widgets into registry
QgsApplication::rasterRendererRegistry()->insertWidgetFunction( QStringLiteral( "paletted" ), QgsPalettedRendererWidget::create );
QgsApplication::rasterRendererRegistry()->insertWidgetFunction( QStringLiteral( "multibandcolor" ), QgsMultiBandColorRendererWidget::create );
QgsApplication::rasterRendererRegistry()->insertWidgetFunction( QStringLiteral( "singlebandpseudocolor" ), QgsSingleBandPseudoColorRendererWidget::create );
QgsApplication::rasterRendererRegistry()->insertWidgetFunction( QStringLiteral( "singlebandgray" ), QgsSingleBandGrayRendererWidget::create );
QgsApplication::rasterRendererRegistry()->insertWidgetFunction( QStringLiteral( "hillshade" ), QgsHillshadeRendererWidget::create );
//fill available renderers into combo box
QgsRasterRendererRegistryEntry entry;
Q_FOREACH ( const QString& name, QgsApplication::rasterRendererRegistry()->renderersList() )
{
if ( QgsApplication::rasterRendererRegistry()->rendererData( name, entry ) )
{
if (( mRasterLayer->rasterType() != QgsRasterLayer::ColorLayer && entry.name != QLatin1String( "singlebandcolordata" ) ) ||
( mRasterLayer->rasterType() == QgsRasterLayer::ColorLayer && entry.name == QLatin1String( "singlebandcolordata" ) ) )
{
mRenderTypeComboBox->addItem( entry.visibleName, entry.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
// No more necessary, combo entries according to layer type
#if 0
if ( rendererType == "singlebandcolordata" )
{
mRenderTypeComboBox->setEnabled( false );
}
else
{
mRenderTypeComboBox->removeItem( mRenderTypeComboBox->findData( "singlebandcolordata" ) );
}
#endif
if ( rendererType == QLatin1String( "singlebandcolordata" ) && mRenderTypeComboBox->count() == 1 )
{
// no band rendering options for singlebandcolordata, so minimize group box
QSizePolicy sizep = mBandRenderingGrpBx->sizePolicy();
sizep.setVerticalStretch( 0 );
sizep.setVerticalPolicy( QSizePolicy::Maximum );
mBandRenderingGrpBx->setSizePolicy( sizep );
mBandRenderingGrpBx->updateGeometry();
}
}
on_mRenderTypeComboBox_currentIndexChanged( mRenderTypeComboBox->currentIndex() );
// update based on lyr's current state
sync();
QSettings settings;
// if dialog hasn't been opened/closed yet, default to Styles tab, which is used most often
// this will be read by restoreOptionsBaseUi()
if ( !settings.contains( QStringLiteral( "/Windows/RasterLayerProperties/tab" ) ) )
{
settings.setValue( QStringLiteral( "/Windows/RasterLayerProperties/tab" ),
mOptStackedWidget->indexOf( mOptsPage_Style ) );
}
mResetColorRenderingBtn->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionUndo.svg" ) ) );
QString title = QString( tr( "Layer Properties - %1" ) ).arg( lyr->name() );
restoreOptionsBaseUi( title );
} // QgsRasterLayerProperties ctor
QgsRasterLayerProperties::~QgsRasterLayerProperties()
{
if ( mPixelSelectorTool )
{
delete mPixelSelectorTool;
}
}
void QgsRasterLayerProperties::setupTransparencyTable( int nBands )
{
tableTransparency->clear();
tableTransparency->setColumnCount( 0 );
tableTransparency->setRowCount( 0 );
mTransparencyToEdited.clear();
if ( nBands == 3 )
{
tableTransparency->setColumnCount( 4 );
tableTransparency->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "Red" ) ) );
tableTransparency->setHorizontalHeaderItem( 1, new QTableWidgetItem( tr( "Green" ) ) );
tableTransparency->setHorizontalHeaderItem( 2, new QTableWidgetItem( tr( "Blue" ) ) );
tableTransparency->setHorizontalHeaderItem( 3, new QTableWidgetItem( tr( "Percent Transparent" ) ) );
}
else //1 band
{
tableTransparency->setColumnCount( 3 );
// Is it important to distinguish the header? It becomes difficult with range.
#if 0
if ( QgsRasterLayer::PalettedColor != mRasterLayer->drawingStyle() &&
QgsRasterLayer::PalettedSingleBandGray != mRasterLayer->drawingStyle() &&
QgsRasterLayer::PalettedSingleBandPseudoColor != mRasterLayer->drawingStyle() &&
QgsRasterLayer::PalettedMultiBandColor != mRasterLayer->drawingStyle() )
{
tableTransparency->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "Gray" ) ) );
}
else
{
tableTransparency->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "Indexed Value" ) ) );
}
#endif
tableTransparency->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "From" ) ) );
tableTransparency->setHorizontalHeaderItem( 1, new QTableWidgetItem( tr( "To" ) ) );
tableTransparency->setHorizontalHeaderItem( 2, new QTableWidgetItem( tr( "Percent Transparent" ) ) );
}
tableTransparency->horizontalHeader()->setResizeMode( 0, QHeaderView::Stretch );
tableTransparency->horizontalHeader()->setResizeMode( 1, QHeaderView::Stretch );
}
void QgsRasterLayerProperties::populateTransparencyTable( QgsRasterRenderer* renderer )
{
if ( !mRasterLayer )
{
return;
}
if ( !renderer )
{
return;
}
int nBands = renderer->usesBands().size();
setupTransparencyTable( nBands );
const QgsRasterTransparency* rasterTransparency = renderer->rasterTransparency();
if ( !rasterTransparency )
{
return;
}
if ( nBands == 1 )
{
QList<QgsRasterTransparency::TransparentSingleValuePixel> pixelList = rasterTransparency->transparentSingleValuePixelList();
for ( int i = 0; i < pixelList.size(); ++i )
{
tableTransparency->insertRow( i );
setTransparencyCell( i, 0, pixelList[i].min );
setTransparencyCell( i, 1, pixelList[i].max );
setTransparencyCell( i, 2, pixelList[i].percentTransparent );
// break synchronization only if values differ
if ( pixelList[i].min != pixelList[i].max )
{
setTransparencyToEdited( i );
}
}
}
else if ( nBands == 3 )
{
QList<QgsRasterTransparency::TransparentThreeValuePixel> pixelList = rasterTransparency->transparentThreeValuePixelList();
for ( int i = 0; i < pixelList.size(); ++i )
{
tableTransparency->insertRow( i );
setTransparencyCell( i, 0, pixelList[i].red );
setTransparencyCell( i, 1, pixelList[i].green );
setTransparencyCell( i, 2, pixelList[i].blue );
setTransparencyCell( i, 3, pixelList[i].percentTransparent );
}
}
tableTransparency->resizeColumnsToContents();
tableTransparency->resizeRowsToContents();
}
void QgsRasterLayerProperties::setRendererWidget( const QString& rendererName )
{
QgsDebugMsg( "rendererName = " + rendererName );
QgsRasterRendererWidget* oldWidget = mRendererWidget;
QgsRasterRenderer* oldRenderer = mRasterLayer->renderer();
int alphaBand = -1;
double opacity = 1;
if ( oldRenderer )
{
// Retain alpha band and opacity when switching renderer
alphaBand = oldRenderer->alphaBand();
opacity = oldRenderer->opacity();
}
QgsRasterRendererRegistryEntry rendererEntry;
if ( QgsApplication::rasterRendererRegistry()->rendererData( rendererName, rendererEntry ) )
{
if ( rendererEntry.widgetCreateFunction ) //single band color data renderer e.g. has no widget
{
QgsDebugMsg( "renderer has widgetCreateFunction" );
// Current canvas extent (used to calc min/max) in layer CRS
QgsRectangle myExtent = mMapCanvas->mapSettings().outputExtentToLayerExtent( mRasterLayer, mMapCanvas->extent() );
if ( oldWidget )
{
if ( rendererName == "singlebandgray" )
{
whileBlocking( mRasterLayer )->setRenderer( QgsApplication::rasterRendererRegistry()->defaultRendererForDrawingStyle( QgsRaster::SingleBandGray, mRasterLayer->dataProvider() ) );
whileBlocking( mRasterLayer )->setDefaultContrastEnhancement();
}
else if ( rendererName == "multibandcolor" )
{
whileBlocking( mRasterLayer )->setRenderer( QgsApplication::rasterRendererRegistry()->defaultRendererForDrawingStyle( QgsRaster::MultiBandColor, mRasterLayer->dataProvider() ) );
whileBlocking( mRasterLayer )->setDefaultContrastEnhancement();
}
}
mRasterLayer->renderer()->setAlphaBand( alphaBand );
mRasterLayer->renderer()->setOpacity( opacity );
mRendererWidget = rendererEntry.widgetCreateFunction( mRasterLayer, myExtent );
mRendererWidget->setMapCanvas( mMapCanvas );
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;
}
}
}
if ( mRendererWidget != oldWidget )
delete oldWidget;
if ( mHistogramWidget )
{
mHistogramWidget->setRendererWidget( rendererName, mRendererWidget );
}
}
/**
@note moved from ctor
Previously this dialog was created anew with each right-click pop-up menu
invocation. 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 ) == Qgis::ARGB32
|| mRasterLayer->dataProvider()->dataType( 1 ) == Qgis::ARGB32_Premultiplied )
{
gboxNoDataValue->setEnabled( false );
gboxCustomTransparency->setEnabled( false );
mOptionsStackedWidget->setCurrentWidget( mOptsPage_Metadata );
}
// TODO: Wouldn't it be better to just removeWidget() the tabs than delete them? [LS]
if ( !( mRasterLayer->dataProvider()->capabilities() & QgsRasterDataProvider::BuildPyramids ) )
{
if ( mOptsPage_Pyramids )
{
delete mOptsPage_Pyramids;
mOptsPage_Pyramids = nullptr;
}
}
if ( !( mRasterLayer->dataProvider()->capabilities() & QgsRasterDataProvider::Size ) )
{
if ( mOptsPage_Histogram )
{
delete mOptsPage_Histogram;
mOptsPage_Histogram = nullptr;
delete mHistogramWidget;
mHistogramWidget = nullptr;
}
}
QgsDebugMsg( "populate transparency tab" );
/*
* Style tab (brightness and contrast)
*/
QgsBrightnessContrastFilter* brightnessFilter = mRasterLayer->brightnessFilter();
if ( brightnessFilter )
{
mSliderBrightness->setValue( brightnessFilter->brightness() );
mSliderContrast->setValue( brightnessFilter->contrast() );
}
//set the transparency slider
/*
* 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
// TODO: should be per band
// TODO: no data ranges
if ( mRasterLayer->dataProvider()->sourceHasNoDataValue( 1 ) )
{
lblSrcNoDataValue->setText( QgsRasterBlock::printValue( mRasterLayer->dataProvider()->sourceNoDataValue( 1 ) ) );
}
else
{
lblSrcNoDataValue->setText( tr( "not defined" ) );
}
mSrcNoDataValueCheckBox->setChecked( mRasterLayer->dataProvider()->useSourceNoDataValue( 1 ) );
bool enableSrcNoData = mRasterLayer->dataProvider()->sourceHasNoDataValue( 1 ) && !qIsNaN( mRasterLayer->dataProvider()->sourceNoDataValue( 1 ) );
mSrcNoDataValueCheckBox->setEnabled( enableSrcNoData );
lblSrcNoDataValue->setEnabled( enableSrcNoData );
QgsRasterRangeList noDataRangeList = mRasterLayer->dataProvider()->userNoDataValues( 1 );
QgsDebugMsg( QString( "noDataRangeList.size = %1" ).arg( noDataRangeList.size() ) );
if ( !noDataRangeList.isEmpty() )
{
leNoDataValue->insert( QgsRasterBlock::printValue( noDataRangeList.value( 0 ).min() ) );
}
else
{
leNoDataValue->insert( QLatin1String( "" ) );
}
mRefreshLayerCheckBox->setChecked( mRasterLayer->hasAutoRefreshEnabled() );
mRefreshLayerIntervalSpinBox->setEnabled( mRasterLayer->hasAutoRefreshEnabled() );
mRefreshLayerIntervalSpinBox->setValue( mRasterLayer->autoRefreshInterval() / 1000.0 );
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() );
mLayerOrigNameLineEd->setText( mRasterLayer->originalName() );
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 ) == Qgis::ARGB32
|| mRasterLayer->dataProvider()->dataType( 1 ) == Qgis::ARGB32_Premultiplied )
{
lblNoData->setText( tr( "No-Data Value: " ) + tr( "n/a" ) );
}
else
{
// TODO: all bands
if ( mRasterLayer->dataProvider()->sourceHasNoDataValue( 1 ) )
{
lblNoData->setText( tr( "No-Data Value: %1" ).arg( mRasterLayer->dataProvider()->sourceNoDataValue( 1 ) ) );
}
else
{
lblNoData->setText( tr( "No-Data Value: " ) + tr( "n/a" ) );
}
}
//get the thumbnail for the layer
QPixmap thumbnail = QPixmap::fromImage( mRasterLayer->previewAsImage( pixmapThumbnail->size() ) );
pixmapThumbnail->setPixmap( thumbnail );
// TODO fix legend + palette pixmap
//update the legend pixmap on this dialog
#if 0
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();
#endif
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() );
// WMS Name as layer short name
mLayerShortNameLineEdit->setText( mRasterLayer->shortName() );
// WMS Name validator
QValidator *shortNameValidator = new QRegExpValidator( QgsApplication::shortNameRegExp(), this );
mLayerShortNameLineEdit->setValidator( shortNameValidator );
//layer title and abstract
mLayerTitleLineEdit->setText( mRasterLayer->title() );
mLayerAbstractTextEdit->setPlainText( mRasterLayer->abstract() );
mLayerKeywordListLineEdit->setText( mRasterLayer->keywordList() );
mLayerDataUrlLineEdit->setText( mRasterLayer->dataUrl() );
mLayerDataUrlFormatComboBox->setCurrentIndex(
mLayerDataUrlFormatComboBox->findText(
mRasterLayer->dataUrlFormat()
)
);
//layer attribution and metadataUrl
mLayerAttributionLineEdit->setText( mRasterLayer->attribution() );
mLayerAttributionUrlLineEdit->setText( mRasterLayer->attributionUrl() );
mLayerMetadataUrlLineEdit->setText( mRasterLayer->metadataUrl() );
mLayerMetadataUrlTypeComboBox->setCurrentIndex(
mLayerMetadataUrlTypeComboBox->findText(
mRasterLayer->metadataUrlType()
)
);
mLayerMetadataUrlFormatComboBox->setCurrentIndex(
mLayerMetadataUrlFormatComboBox->findText(
mRasterLayer->metadataUrlFormat()
)
);
mLayerLegendUrlLineEdit->setText( mRasterLayer->legendUrl() );
mLayerLegendUrlFormatComboBox->setCurrentIndex( mLayerLegendUrlFormatComboBox->findText( mRasterLayer->legendUrlFormat() ) );
/*
* Legend Tab
*/
mLegendConfigEmbeddedWidget->setLayer( mRasterLayer );
} // QgsRasterLayerProperties::sync()
/*
*
* PUBLIC AND PRIVATE SLOTS
*
*/
void QgsRasterLayerProperties::apply()
{
/*
* Legend Tab
*/
mLegendConfigEmbeddedWidget->applyToLayer();
QgsDebugMsg( "apply processing symbology tab" );
/*
* Symbology Tab
*/
//set whether the layer histogram should be inverted
//mRasterLayer->setInvertHistogram( cboxInvertColorMap->isChecked() );
mRasterLayer->brightnessFilter()->setBrightness( mSliderBrightness->value() );
mRasterLayer->brightnessFilter()->setContrast( mSliderContrast->value() );
QgsDebugMsg( "processing transparency tab" );
/*
* Transparent Pixel Tab
*/
//set NoDataValue
QgsRasterRangeList myNoDataRangeList;
if ( "" != leNoDataValue->text() )
{
bool myDoubleOk = false;
double myNoDataValue = leNoDataValue->text().toDouble( &myDoubleOk );
if ( myDoubleOk )
{
QgsRasterRange myNoDataRange( myNoDataValue, myNoDataValue );
myNoDataRangeList << myNoDataRange;
}
}
for ( int bandNo = 1; bandNo <= mRasterLayer->dataProvider()->bandCount(); bandNo++ )
{
mRasterLayer->dataProvider()->setUserNoDataValue( bandNo, myNoDataRangeList );
mRasterLayer->dataProvider()->setUseSourceNoDataValue( bandNo, mSrcNoDataValueCheckBox->isChecked() );
}
//set renderer from widget
QgsRasterRendererWidget* rendererWidget = dynamic_cast<QgsRasterRendererWidget*>( mRendererStackedWidget->currentWidget() );
if ( rendererWidget )
{
rendererWidget->doComputations();
mRasterLayer->setRenderer( rendererWidget->renderer() );
}
//transparency settings
QgsRasterRenderer* rasterRenderer = mRasterLayer->renderer();
if ( rasterRenderer )
{
rasterRenderer->setAlphaBand( cboxTransparencyBand->currentData().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 )
{
QgsRasterTransparency::TransparentThreeValuePixel myTransparentPixel;
QList<QgsRasterTransparency::TransparentThreeValuePixel> myTransparentThreeValuePixelList;
for ( int myListRunner = 0; myListRunner < tableTransparency->rowCount(); myListRunner++ )
{
myTransparentPixel.red = transparencyCellValue( myListRunner, 0 );
myTransparentPixel.green = transparencyCellValue( myListRunner, 1 );
myTransparentPixel.blue = transparencyCellValue( myListRunner, 2 );
myTransparentPixel.percentTransparent = transparencyCellValue( myListRunner, 3 );
myTransparentThreeValuePixelList.append( myTransparentPixel );
}
rasterTransparency->setTransparentThreeValuePixelList( myTransparentThreeValuePixelList );
}
else if ( tableTransparency->columnCount() == 3 )
{
QgsRasterTransparency::TransparentSingleValuePixel myTransparentPixel;
QList<QgsRasterTransparency::TransparentSingleValuePixel> myTransparentSingleValuePixelList;
for ( int myListRunner = 0; myListRunner < tableTransparency->rowCount(); myListRunner++ )
{
myTransparentPixel.min = transparencyCellValue( myListRunner, 0 );
myTransparentPixel.max = transparencyCellValue( myListRunner, 1 );
myTransparentPixel.percentTransparent = transparencyCellValue( myListRunner, 2 );
myTransparentSingleValuePixelList.append( myTransparentPixel );
}
rasterTransparency->setTransparentSingleValuePixelList( myTransparentSingleValuePixelList );
}
rasterRenderer->setRasterTransparency( rasterTransparency );
//set global transparency
rasterRenderer->setOpacity(( 255 - sliderTransparency->value() ) / 255.0 );
}
QgsDebugMsg( "processing general tab" );
/*
* General Tab
*/
mRasterLayer->setName( mLayerOrigNameLineEd->text() );
// set up the scale based layer visibility stuff....
mRasterLayer->setScaleBasedVisibility( chkUseScaleDependentRendering->isChecked() );
// caution: layer uses scale denoms, widget uses true scales
mRasterLayer->setMaximumScale( 1.0 / mScaleRangeWidget->minimumScale() );
mRasterLayer->setMinimumScale( 1.0 / mScaleRangeWidget->maximumScale() );
mRasterLayer->setAutoRefreshInterval( mRefreshLayerIntervalSpinBox->value() * 1000.0 );
mRasterLayer->setAutoRefreshEnabled( mRefreshLayerCheckBox->isChecked() );
//update the legend pixmap
// pixmapLegend->setPixmap( mRasterLayer->legendAsPixmap() );
// pixmapLegend->setScaledContents( true );
// pixmapLegend->repaint();
QgsRasterResampleFilter* resampleFilter = mRasterLayer->resampleFilter();
if ( resampleFilter )
{
QgsRasterResampler *zoomedInResampler = nullptr;
QString zoomedInResamplingMethod = mZoomedInResamplingComboBox->currentText();
if ( zoomedInResamplingMethod == tr( "Bilinear" ) )
{
zoomedInResampler = new QgsBilinearRasterResampler();
}
else if ( zoomedInResamplingMethod == tr( "Cubic" ) )
{
zoomedInResampler = new QgsCubicRasterResampler();
}
resampleFilter->setZoomedInResampler( zoomedInResampler );
//raster resampling
QgsRasterResampler *zoomedOutResampler = nullptr;
QString zoomedOutResamplingMethod = mZoomedOutResamplingComboBox->currentText();
if ( zoomedOutResamplingMethod == tr( "Average" ) )
{
zoomedOutResampler = new QgsBilinearRasterResampler();
}
resampleFilter->setZoomedOutResampler( zoomedOutResampler );
resampleFilter->setMaxOversampling( mMaximumOversamplingSpinBox->value() );
}
// Hue and saturation controls
QgsHueSaturationFilter *hueSaturationFilter = mRasterLayer->hueSaturationFilter();
if ( hueSaturationFilter )
{
hueSaturationFilter->setSaturation( sliderSaturation->value() );
hueSaturationFilter->setGrayscaleMode(( QgsHueSaturationFilter::GrayscaleMode ) comboGrayscale->currentIndex() );
hueSaturationFilter->setColorizeOn( mColorizeCheck->checkState() );
hueSaturationFilter->setColorizeColor( btnColorizeColor->color() );
hueSaturationFilter->setColorizeStrength( sliderColorizeStrength->value() );
}
//set the blend mode for the layer
mRasterLayer->setBlendMode( mBlendModeComboBox->blendMode() );
//get the thumbnail for the layer