27 , mDisableMinMaxWidgetRefresh( false )
30 connect( mRedMinLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mRedMinLineEdit_textChanged );
31 connect( mRedMaxLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mRedMaxLineEdit_textChanged );
32 connect( mGreenMinLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mGreenMinLineEdit_textChanged );
33 connect( mGreenMaxLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mGreenMaxLineEdit_textChanged );
34 connect( mBlueMinLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mBlueMinLineEdit_textChanged );
35 connect( mBlueMaxLineEdit, &QLineEdit::textChanged,
this, &QgsMultiBandColorRendererWidget::mBlueMaxLineEdit_textChanged );
49 QHBoxLayout *layout =
new QHBoxLayout();
50 layout->setContentsMargins( 0, 0, 0, 0 );
51 mMinMaxContainerWidget->setLayout( layout );
52 layout->addWidget( mMinMaxWidget );
60 this, &QgsMultiBandColorRendererWidget::onBandChanged );
62 this, &QgsMultiBandColorRendererWidget::onBandChanged );
64 this, &QgsMultiBandColorRendererWidget::onBandChanged );
66 mRedBandComboBox->setShowNotSetOption(
true );
67 mGreenBandComboBox->setShowNotSetOption(
true );
68 mBlueBandComboBox->setShowNotSetOption(
true );
98 const int redBand = mRedBandComboBox->currentBand();
99 const int greenBand = mGreenBandComboBox->currentBand();
100 const int blueBand = mBlueBandComboBox->currentBand();
103 setCustomMinMaxValues( r, provider, redBand, greenBand, blueBand );
121void QgsMultiBandColorRendererWidget::createValidators()
133 int redBand,
int greenBand,
int blueBand )
135 if ( !r || !provider )
144 bool redMinOk, redMaxOk;
147 if ( redMinOk && redMaxOk && redBand != -1 )
155 bool greenMinOk, greenMaxOk;
158 if ( greenMinOk && greenMaxOk && greenBand != -1 )
161 provider->
dataType( greenBand ) ) );
166 bool blueMinOk, blueMaxOk;
169 if ( blueMinOk && blueMaxOk && blueBand != -1 )
177 if ( redEnhancement )
180 ( mContrastEnhancementAlgorithmComboBox->currentData().toInt() ) );
182 if ( greenEnhancement )
185 ( mContrastEnhancementAlgorithmComboBox->currentData().toInt() ) );
187 if ( blueEnhancement )
190 ( mContrastEnhancementAlgorithmComboBox->currentData().toInt() ) );
197void QgsMultiBandColorRendererWidget::onBandChanged(
int index )
202 myBands.append( mRedBandComboBox->currentBand() );
203 myBands.append( mGreenBandComboBox->currentBand() );
204 myBands.append( mBlueBandComboBox->currentBand() );
209void QgsMultiBandColorRendererWidget::mRedMinLineEdit_textChanged(
const QString & )
214void QgsMultiBandColorRendererWidget::mRedMaxLineEdit_textChanged(
const QString & )
219void QgsMultiBandColorRendererWidget::mGreenMinLineEdit_textChanged(
const QString & )
224void QgsMultiBandColorRendererWidget::mGreenMaxLineEdit_textChanged(
const QString & )
229void QgsMultiBandColorRendererWidget::mBlueMinLineEdit_textChanged(
const QString & )
234void QgsMultiBandColorRendererWidget::mBlueMaxLineEdit_textChanged(
const QString & )
239void QgsMultiBandColorRendererWidget::minMaxModified()
241 if ( !mDisableMinMaxWidgetRefresh )
245 mContrastEnhancementAlgorithmComboBox->setCurrentIndex(
255 QgsDebugMsgLevel( QStringLiteral(
"theBandNo = %1 min = %2 max = %3" ).arg( bandNo ).arg(
min ).arg(
max ), 2 );
257 QLineEdit *myMinLineEdit, *myMaxLineEdit;
259 if ( mRedBandComboBox->currentBand() == bandNo )
261 myMinLineEdit = mRedMinLineEdit;
262 myMaxLineEdit = mRedMaxLineEdit;
264 else if ( mGreenBandComboBox->currentBand() == bandNo )
266 myMinLineEdit = mGreenMinLineEdit;
267 myMaxLineEdit = mGreenMaxLineEdit;
269 else if ( mBlueBandComboBox->currentBand() == bandNo )
271 myMinLineEdit = mBlueMinLineEdit;
272 myMaxLineEdit = mBlueMaxLineEdit;
280 mDisableMinMaxWidgetRefresh =
true;
281 if ( std::isnan(
min ) )
283 myMinLineEdit->clear();
287 myMinLineEdit->setText( QLocale().toString(
min ) );
290 if ( std::isnan(
max ) )
292 myMaxLineEdit->clear();
296 myMaxLineEdit->setText( QLocale().toString(
max ) );
298 mDisableMinMaxWidgetRefresh =
false;
301void QgsMultiBandColorRendererWidget::setMinMaxValue(
const QgsContrastEnhancement *ce, QLineEdit *minEdit, QLineEdit *maxEdit )
303 if ( !minEdit || !maxEdit )
315 minEdit->setText( QLocale().toString( ce->
minimumValue() ) );
316 maxEdit->setText( QLocale().toString( ce->
maximumValue() ) );
320 mContrastEnhancementAlgorithmComboBox->setCurrentIndex( mContrastEnhancementAlgorithmComboBox->findData(
329 mRedBandComboBox->setBand( mbcr->
redBand() );
330 mGreenBandComboBox->setBand( mbcr->
greenBand() );
331 mBlueBandComboBox->setBand( mbcr->
blueBand() );
333 mDisableMinMaxWidgetRefresh =
true;
337 mDisableMinMaxWidgetRefresh =
false;
343 if ( mRedBandComboBox->findText( tr(
"Red" ) ) > -1 && mRedBandComboBox->findText( tr(
"Green" ) ) > -1 &&
344 mRedBandComboBox->findText( tr(
"Blue" ) ) > -1 )
346 mRedBandComboBox->setCurrentIndex( mRedBandComboBox->findText( tr(
"Red" ) ) );
347 mGreenBandComboBox->setCurrentIndex( mGreenBandComboBox->findText( tr(
"Green" ) ) );
348 mBlueBandComboBox->setCurrentIndex( mBlueBandComboBox->findText( tr(
"Blue" ) ) );
352 mRedBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 1 ? 1 : 0 );
353 mGreenBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 2 ? 2 : 0 );
354 mBlueBandComboBox->setCurrentIndex( mRedBandComboBox->count() > 3 ? 3 : 0 );
364 return mRedMinLineEdit->text();
366 return mGreenMinLineEdit->text();
368 return mBlueMinLineEdit->text();
380 return mRedMaxLineEdit->text();
382 return mGreenMaxLineEdit->text();
384 return mBlueMaxLineEdit->text();
393 mDisableMinMaxWidgetRefresh =
true;
397 mRedMinLineEdit->setText( value );
400 mGreenMinLineEdit->setText( value );
403 mBlueMinLineEdit->setText( value );
408 mDisableMinMaxWidgetRefresh =
false;
413 mDisableMinMaxWidgetRefresh =
true;
417 mRedMaxLineEdit->setText( value );
420 mGreenMaxLineEdit->setText( value );
423 mBlueMaxLineEdit->setText( value );
428 mDisableMinMaxWidgetRefresh =
false;
436 return mRedBandComboBox->currentBand();
438 return mGreenBandComboBox->currentBand();
440 return mBlueBandComboBox->currentBand();
454 mDisableMinMaxWidgetRefresh =
true;
455 mContrastEnhancementAlgorithmComboBox->setCurrentIndex( mContrastEnhancementAlgorithmComboBox->findData(
static_cast<int>(
algorithm ) ) );
456 mDisableMinMaxWidgetRefresh =
false;
DataType
Raster data types.
Manipulates raster or point cloud pixel values so that they enhanceContrast or clip into a specified ...
ContrastEnhancementAlgorithm
This enumerator describes the types of contrast enhancement algorithms that can be used.
@ StretchToMinimumMaximum
Linear histogram.
@ StretchAndClipToMinimumMaximum
@ NoEnhancement
Default color scaling algorithm, no scaling is applied.
void setMinimumValue(double value, bool generateTable=true)
Sets the minimum value for the contrast enhancement range.
void setContrastEnhancementAlgorithm(ContrastEnhancementAlgorithm algorithm, bool generateTable=true)
Sets the contrast enhancement algorithm.
double minimumValue() const
Returns the minimum value for the contrast enhancement range.
ContrastEnhancementAlgorithm contrastEnhancementAlgorithm() const
void setMaximumValue(double value, bool generateTable=true)
Sets the maximum value for the contrast enhancement range.
double maximumValue() const
Returns the maximum value for the contrast enhancement range.
QgsDoubleValidator is a QLineEdit Validator that combines QDoubleValidator and QRegularExpressionVali...
static double toDouble(const QString &input, bool *ok)
Converts input string to double value.
Map canvas is a class for displaying all GIS data types on a canvas.
Renderer for multiband images with the color components.
const QgsContrastEnhancement * greenContrastEnhancement() const
Returns the contrast enhancement to use for the green channel.
const QgsContrastEnhancement * blueContrastEnhancement() const
Returns the contrast enhancement to use for the blue channel.
void setGreenContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the green channel.
void setBlueContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the blue channel.
void setRedContrastEnhancement(QgsContrastEnhancement *ce)
Sets the contrast enhancement to use for the red channel.
const QgsContrastEnhancement * redContrastEnhancement() const
Returns the contrast enhancement to use for the red channel.
void bandChanged(int band)
Emitted when the currently selected band changes.
Base class for raster data providers.
Qgis::DataType dataType(int bandNo) const override=0
Returns data type for the band specified by number.
Represents a raster layer.
QgsRasterRenderer * renderer() const
Returns the raster's renderer.
QgsRasterDataProvider * dataProvider() override
Returns the source data provider.
Raster renderer pipe that applies colors to a raster.
void setMinMaxOrigin(const QgsRasterMinMaxOrigin &origin)
Sets origin of min/max values.
const QgsRasterMinMaxOrigin & minMaxOrigin() const
Returns const reference to origin of min/max values.
A rectangle specified with double values.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into allowing algorithms to be written in pure substantial changes are required in order to port existing x Processing algorithms for QGIS x The most significant changes are outlined not GeoAlgorithm For algorithms which operate on features one by consider subclassing the QgsProcessingFeatureBasedAlgorithm class This class allows much of the boilerplate code for looping over features from a vector layer to be bypassed and instead requires implementation of a processFeature method Ensure that your algorithm(or algorithm 's parent class) implements the new pure virtual createInstance(self) call
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)