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Clarify what value means for single band psuedo color renderer
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...by adapting the header text and tooltip as the interpolation
mode is altered
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@nyalldawson
nyalldawson committed Jun 2, 2016
1 parent c68eaeb commit d40554b
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Showing 2 changed files with 58 additions and 55 deletions.
112 changes: 58 additions & 54 deletions src/gui/raster/qgssinglebandpseudocolorrendererwidget.cpp
View file
Expand Up @@ -115,10 +115,10 @@ QgsSingleBandPseudoColorRendererWidget::QgsSingleBandPseudoColorRendererWidget(
mBandComboBox->addItem( displayBandName( i ), i );
}

mColorInterpolationComboBox->addItem( tr( "Discrete" ), 0 );
mColorInterpolationComboBox->addItem( tr( "Linear" ), 1 );
mColorInterpolationComboBox->addItem( tr( "Exact" ), 2 );
mColorInterpolationComboBox->setCurrentIndex( 1 );
mColorInterpolationComboBox->addItem( tr( "Discrete" ), QgsColorRampShader::DISCRETE );
mColorInterpolationComboBox->addItem( tr( "Linear" ), QgsColorRampShader::INTERPOLATED );
mColorInterpolationComboBox->addItem( tr( "Exact" ), QgsColorRampShader::EXACT );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( QgsColorRampShader::INTERPOLATED ) );
mClassificationModeComboBox->addItem( tr( "Continuous" ), Continuous );
mClassificationModeComboBox->addItem( tr( "Equal interval" ), EqualInterval );
mClassificationModeComboBox->addItem( tr( "Quantile" ), Quantile );
Expand Down Expand Up @@ -178,18 +178,8 @@ QgsRasterRenderer* QgsSingleBandPseudoColorRendererWidget::renderer()
qSort( colorRampItems );
colorRampShader->setColorRampItemList( colorRampItems );

if ( mColorInterpolationComboBox->currentText() == tr( "Linear" ) )
{
colorRampShader->setColorRampType( QgsColorRampShader::INTERPOLATED );
}
else if ( mColorInterpolationComboBox->currentText() == tr( "Discrete" ) )
{
colorRampShader->setColorRampType( QgsColorRampShader::DISCRETE );
}
else
{
colorRampShader->setColorRampType( QgsColorRampShader::EXACT );
}
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( mColorInterpolationComboBox->currentIndex() ).toInt() );
colorRampShader->setColorRampType( interpolation );
rasterShader->setRasterShaderFunction( colorRampShader );

int bandNumber = mBandComboBox->itemData( mBandComboBox->currentIndex() ).toInt();
Expand All @@ -207,7 +197,8 @@ QgsRasterRenderer* QgsSingleBandPseudoColorRendererWidget::renderer()
*/
void QgsSingleBandPseudoColorRendererWidget::autoLabel()
{
bool discrete = mColorInterpolationComboBox->currentText() == tr( "Discrete" );
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( mColorInterpolationComboBox->currentIndex() ).toInt() );
bool discrete = interpolation == QgsColorRampShader::DISCRETE;
QString unit = mUnitLineEdit->text();
QString label;
int topLevelItemCount = mColormapTreeWidget->topLevelItemCount();
Expand Down Expand Up @@ -252,7 +243,8 @@ void QgsSingleBandPseudoColorRendererWidget::autoLabel()
/** Extract the unit out of the current labels and set the unit field. */
void QgsSingleBandPseudoColorRendererWidget::setUnitFromLabels()
{
bool discrete = mColorInterpolationComboBox->currentText() == tr( "Discrete" );
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( mColorInterpolationComboBox->currentIndex() ).toInt() );
bool discrete = interpolation == QgsColorRampShader::DISCRETE;
QStringList allSuffixes;
QString label;
int topLevelItemCount = mColormapTreeWidget->topLevelItemCount();
Expand Down Expand Up @@ -353,7 +345,8 @@ void QgsSingleBandPseudoColorRendererWidget::on_mClassifyButton_clicked()
//QgsRasterBandStats myRasterBandStats = mRasterLayer->dataProvider()->bandStatistics( bandNr );
int numberOfEntries;

bool discrete = mColorInterpolationComboBox->currentText() == tr( "Discrete" );
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( mColorInterpolationComboBox->currentIndex() ).toInt() );
bool discrete = interpolation == QgsColorRampShader::DISCRETE;

QList<double> entryValues;
QVector<QColor> entryColors;
Expand Down Expand Up @@ -531,9 +524,10 @@ void QgsSingleBandPseudoColorRendererWidget::on_mClassifyButton_clicked()

void QgsSingleBandPseudoColorRendererWidget::on_mClassificationModeComboBox_currentIndexChanged( int index )
{
mNumberOfEntriesSpinBox->setEnabled( mClassificationModeComboBox->itemData( index ).toInt() != Continuous );
mMinLineEdit->setEnabled( mClassificationModeComboBox->itemData( index ).toInt() != Quantile );
mMaxLineEdit->setEnabled( mClassificationModeComboBox->itemData( index ).toInt() != Quantile );
Mode mode = static_cast< Mode >( mClassificationModeComboBox->itemData( index ).toInt() );
mNumberOfEntriesSpinBox->setEnabled( mode != Continuous );
mMinLineEdit->setEnabled( mode != Quantile );
mMaxLineEdit->setEnabled( mode != Quantile );
}

void QgsSingleBandPseudoColorRendererWidget::on_mColorRampComboBox_currentIndexChanged( int index )
Expand Down Expand Up @@ -585,7 +579,7 @@ void QgsSingleBandPseudoColorRendererWidget::on_mLoadFromBandButton_clicked()
if ( !colorRampList.isEmpty() )
{
populateColormapTreeWidget( colorRampList );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Linear" ) ) );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( QgsColorRampShader::INTERPOLATED ) );
}
else
{
Expand Down Expand Up @@ -629,15 +623,15 @@ void QgsSingleBandPseudoColorRendererWidget::on_mLoadFromFileButton_clicked()
{
if ( inputStringComponents[1].trimmed().toUpper().compare( "INTERPOLATED", Qt::CaseInsensitive ) == 0 )
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Linear" ) ) );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( QgsColorRampShader::INTERPOLATED ) );
}
else if ( inputStringComponents[1].trimmed().toUpper().compare( "DISCRETE", Qt::CaseInsensitive ) == 0 )
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Discrete" ) ) );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( QgsColorRampShader::DISCRETE ) );
}
else
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Exact" ) ) );
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( QgsColorRampShader::EXACT ) );
}
}
else
Expand Down Expand Up @@ -702,17 +696,18 @@ void QgsSingleBandPseudoColorRendererWidget::on_mExportToFileButton_clicked()
QTextStream outputStream( &outputFile );
outputStream << "# " << tr( "QGIS Generated Color Map Export File" ) << '\n';
outputStream << "INTERPOLATION:";
if ( mColorInterpolationComboBox->currentText() == tr( "Linear" ) )
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( mColorInterpolationComboBox->currentIndex() ).toInt() );
switch ( interpolation )
{
outputStream << "INTERPOLATED\n";
}
else if ( mColorInterpolationComboBox->currentText() == tr( "Discrete" ) )
{
outputStream << "DISCRETE\n";
}
else
{
outputStream << "EXACT\n";
case QgsColorRampShader::INTERPOLATED:
outputStream << "INTERPOLATED\n";
break;
case QgsColorRampShader::DISCRETE:
outputStream << "DISCRETE\n";
break;
case QgsColorRampShader::EXACT:
outputStream << "EXACT\n";
break;
}

int topLevelItemCount = mColormapTreeWidget->topLevelItemCount();
Expand Down Expand Up @@ -750,10 +745,6 @@ void QgsSingleBandPseudoColorRendererWidget::on_mExportToFileButton_clicked()
}
}

void QgsSingleBandPseudoColorRendererWidget::on_mColorInterpolationComboBox_currentIndexChanged()
{
}

void QgsSingleBandPseudoColorRendererWidget::on_mColormapTreeWidget_itemDoubleClicked( QTreeWidgetItem* item, int column )
{
if ( !item )
Expand Down Expand Up @@ -812,18 +803,7 @@ void QgsSingleBandPseudoColorRendererWidget::setFromRenderer( const QgsRasterRen
const QgsColorRampShader* colorRampShader = dynamic_cast<const QgsColorRampShader*>( rasterShader->rasterShaderFunction() );
if ( colorRampShader )
{
if ( colorRampShader->colorRampType() == QgsColorRampShader::INTERPOLATED )
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Linear" ) ) );
}
else if ( colorRampShader->colorRampType() == QgsColorRampShader::DISCRETE )
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Discrete" ) ) );
}
else
{
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findText( tr( "Exact" ) ) );
}
mColorInterpolationComboBox->setCurrentIndex( mColorInterpolationComboBox->findData( colorRampShader->colorRampType() ) );

const QList<QgsColorRampShader::ColorRampItem> colorRampItemList = colorRampShader->colorRampItemList();
QList<QgsColorRampShader::ColorRampItem>::const_iterator it = colorRampItemList.constBegin();
Expand Down Expand Up @@ -857,8 +837,32 @@ void QgsSingleBandPseudoColorRendererWidget::on_mBandComboBox_currentIndexChange

void QgsSingleBandPseudoColorRendererWidget::on_mColorInterpolationComboBox_currentIndexChanged( int index )
{
Q_UNUSED( index );
mClipCheckBox->setEnabled( mColorInterpolationComboBox->currentText() == tr( "Linear" ) );
QgsColorRampShader::ColorRamp_TYPE interpolation = static_cast< QgsColorRampShader::ColorRamp_TYPE >( mColorInterpolationComboBox->itemData( index ).toInt() );

mClipCheckBox->setEnabled( interpolation == QgsColorRampShader::INTERPOLATED );

QString valueLabel;
QString valueToolTip;
switch ( interpolation )
{
case QgsColorRampShader::INTERPOLATED:
valueLabel = tr( "Value" );
valueToolTip = tr( "Value for color stop" );
break;
case QgsColorRampShader::DISCRETE:
valueLabel = tr( "Value <=" );
valueToolTip = tr( "Maximum value for class" );
break;
case QgsColorRampShader::EXACT:
valueLabel = tr( "Value =" );
valueToolTip = tr( "Value for color" );
break;
}

QTreeWidgetItem* header = mColormapTreeWidget->headerItem();
header->setText( ValueColumn, valueLabel );
header->setToolTip( ValueColumn, valueToolTip );

autoLabel();
}

Expand Down
1 change: 0 additions & 1 deletion src/gui/raster/qgssinglebandpseudocolorrendererwidget.h
View file
Expand Up @@ -67,7 +67,6 @@ class GUI_EXPORT QgsSingleBandPseudoColorRendererWidget: public QgsRasterRendere
void on_mLoadFromFileButton_clicked();
void on_mExportToFileButton_clicked();
void on_mUnitLineEdit_textEdited( const QString & text ) { Q_UNUSED( text ); autoLabel(); }
void on_mColorInterpolationComboBox_currentIndexChanged();
void on_mColormapTreeWidget_itemDoubleClicked( QTreeWidgetItem* item, int column );
void mColormapTreeWidget_itemEdited( QTreeWidgetItem* item, int column );
void on_mBandComboBox_currentIndexChanged( int index );
Expand Down

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