26 , mDisableMinMaxWidgetRefresh( false )
29 connect( mMinLineEdit, &QLineEdit::textChanged,
this, &QgsSingleBandGrayRendererWidget::mMinLineEdit_textChanged );
30 connect( mMaxLineEdit, &QLineEdit::textChanged,
this, &QgsSingleBandGrayRendererWidget::mMaxLineEdit_textChanged );
35 mMinLineEdit->setValidator(
new QDoubleValidator( mMinLineEdit ) );
36 mMaxLineEdit->setValidator(
new QDoubleValidator( mMaxLineEdit ) );
50 QHBoxLayout *layout =
new QHBoxLayout();
51 layout->setContentsMargins( 0, 0, 0, 0 );
52 mMinMaxContainerWidget->setLayout( layout );
53 layout->addWidget( mMinMaxWidget );
88 int band = mGrayBandComboBox->currentBand();
116 void QgsSingleBandGrayRendererWidget::mMinLineEdit_textChanged(
const QString & )
121 void QgsSingleBandGrayRendererWidget::mMaxLineEdit_textChanged(
const QString & )
126 void QgsSingleBandGrayRendererWidget::minMaxModified()
128 if ( !mDisableMinMaxWidgetRefresh )
132 mContrastEnhancementComboBox->setCurrentIndex(
145 QgsDebugMsg( QString(
"theBandNo = %1 min = %2 max = %3" ).arg( bandNo ).arg( min ).arg( max ) );
147 mDisableMinMaxWidgetRefresh =
true;
148 if ( std::isnan( min ) )
150 mMinLineEdit->clear();
154 mMinLineEdit->setText( QString::number( min ) );
157 if ( std::isnan( max ) )
159 mMaxLineEdit->clear();
163 mMaxLineEdit->setText( QString::number( max ) );
165 mDisableMinMaxWidgetRefresh =
false;
168 void QgsSingleBandGrayRendererWidget::bandChanged()
171 myBands.append( mGrayBandComboBox->currentBand() );
182 mGrayBandComboBox->setBand( gr->
grayBand() );
184 mGradientComboBox->setCurrentIndex( mGradientComboBox->findData( gr->
gradient() ) );
190 mDisableMinMaxWidgetRefresh =
true;
191 mMinLineEdit->setText( QString::number( ce->
minimumValue() ) );
192 mMaxLineEdit->setText( QString::number( ce->
maximumValue() ) );
193 mDisableMinMaxWidgetRefresh =
false;
195 mContrastEnhancementComboBox->setCurrentIndex(
205 mDisableMinMaxWidgetRefresh =
true;
206 mMinLineEdit->setText( value );
207 mDisableMinMaxWidgetRefresh =
false;
212 mDisableMinMaxWidgetRefresh =
true;
213 mMaxLineEdit->setText( value );
214 mDisableMinMaxWidgetRefresh =
false;
void setContrastEnhancementAlgorithm(ContrastEnhancementAlgorithm, bool generateTable=true)
Set the contrast enhancement algorithm.
double maximumValue() const
Return the maximum value for the contrast enhancement range.
A rectangle specified with double values.
This class provides qgis with the ability to render raster datasets onto the mapcanvas.
DataType
Raster data types.
const QgsContrastEnhancement * contrastEnhancement() const
double minimumValue() const
Return the minimum value for the contrast enhancement range.
const QgsRasterMinMaxOrigin & minMaxOrigin() const
Returns const reference to origin of min/max values.
QgsRasterRenderer * renderer() const
Map canvas is a class for displaying all GIS data types on a canvas.
QgsRasterDataProvider * dataProvider() override
void bandChanged(int band)
This signal is emitted when the currently selected band changes.
void setMinimumValue(double, bool generateTable=true)
Return the minimum value for the contrast enhancement range.
Raster renderer pipe for single band gray.
void setGradient(Gradient gradient)
Gradient gradient() const
void setMinMaxOrigin(const QgsRasterMinMaxOrigin &origin)
Sets origin of min/max values.
void setContrastEnhancement(QgsContrastEnhancement *ce)
Takes ownership.
ContrastEnhancementAlgorithm
This enumerator describes the types of contrast enhancement algorithms that can be used...
ContrastEnhancementAlgorithm contrastEnhancementAlgorithm() const
Manipulates raster pixel values so that they enhanceContrast or clip into a specified numerical range...
Raster renderer pipe that applies colors to a raster.
void setMaximumValue(double, bool generateTable=true)
Set the maximum value for the contrast enhancement range.
Qgis::DataType dataType(int bandNo) const override=0
Returns data type for the band specified by number.
Base class for raster data providers.