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[simplify] user input widget instead of dialog
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@3nids
3nids committed Feb 26, 2018
1 parent 3235fec commit 284ad06
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Showing 3 changed files with 117 additions and 121 deletions.
106 src/app/qgsmaptoolsimplify.cpp
View file
@@ -13,6 +13,8 @@
* *
***************************************************************************/

#include <QPushButton>

#include "qgsmaptoolsimplify.h"

#include "qgsfeatureiterator.h"
@@ -29,9 +31,8 @@
#include <cmath>
#include <cfloat>

QgsSimplifyDialog::QgsSimplifyDialog( QgsMapToolSimplify *tool, QWidget *parent )
: QDialog( parent )
, mTool( tool )
QgsSimplifyUserInputWidget::QgsSimplifyUserInputWidget( QWidget *parent )
: QWidget( parent )
{
setupUi( this );

@@ -40,55 +41,62 @@ QgsSimplifyDialog::QgsSimplifyDialog( QgsMapToolSimplify *tool, QWidget *parent
mMethodComboBox->addItem( tr( "Simplify by area (Visvalingam)" ), QgsMapToolSimplify::SimplifyVisvalingam );
mMethodComboBox->addItem( tr( "Smooth" ), QgsMapToolSimplify::Smooth );

spinTolerance->setValue( mTool->tolerance() );
spinTolerance->setShowClearButton( false );
cboToleranceUnits->setCurrentIndex( ( int ) mTool->toleranceUnits() );
mToleranceUnitsComboBox->addItem( tr( "Layer units" ), QgsTolerance::LayerUnits );
mToleranceUnitsComboBox->addItem( tr( "Pixels" ), QgsTolerance::Pixels );
mToleranceUnitsComboBox->addItem( tr( "Map units" ), QgsTolerance::ProjectUnits );

mSpinToleranceSpinBox->setShowClearButton( false );

mOffsetSpin->setClearValue( 25 );
mOffsetSpin->setValue( mTool->smoothOffset() * 100 );
mIterationsSpin->setClearValue( 1 );
mIterationsSpin->setValue( mTool->smoothIterations() );

mMethodComboBox->setCurrentIndex( mMethodComboBox->findData( mTool->method() ) );
if ( mMethodComboBox->currentData().toInt() != QgsMapToolSimplify::Smooth )
mOptionsStackedWidget->setCurrentIndex( 0 );
else
mOptionsStackedWidget->setCurrentIndex( 1 );

// communication with map tool
connect( spinTolerance, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), mTool, &QgsMapToolSimplify::setTolerance );
connect( cboToleranceUnits, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), mTool, &QgsMapToolSimplify::setToleranceUnits );
connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), mTool, [ = ]
connect( mSpinToleranceSpinBox, static_cast < void ( QDoubleSpinBox::* )( double ) > ( &QDoubleSpinBox::valueChanged ), this, &QgsSimplifyUserInputWidget::toleranceChanged );
connect( mToleranceUnitsComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [ = ]( const int index ) {emit toleranceUnitsChanged( ( QgsTolerance::UnitType )index );} );
connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [ = ]( const int method ) {emit methodChanged( ( QgsMapToolSimplify::Method )method );} );
connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [ = ]
{
mTool->setMethod( static_cast< QgsMapToolSimplify::Method >( mMethodComboBox->currentData().toInt() ) );
if ( mMethodComboBox->currentData().toInt() != QgsMapToolSimplify::Smooth )
mOptionsStackedWidget->setCurrentIndex( 0 );
else
mOptionsStackedWidget->setCurrentIndex( 1 );
} );

connect( mOffsetSpin, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), mTool, [ = ]( int value ) { mTool->setSmoothOffset( value / 100.0 ); } );
connect( mIterationsSpin, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), mTool, [ = ]( int value ) { mTool->setSmoothIterations( value ); } );
connect( okButton, &QAbstractButton::clicked, mTool, &QgsMapToolSimplify::storeSimplified );
connect( mOffsetSpin, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, [ = ]( const int offset ) {emit smoothOffsetChanged( offset / 100.0 );} );
connect( mIterationsSpin, static_cast < void ( QSpinBox::* )( int ) > ( &QSpinBox::valueChanged ), this, &QgsSimplifyUserInputWidget::smoothIterationsChanged );

connect( mButtonBox, &QDialogButtonBox::accepted, this, &QgsSimplifyUserInputWidget::accepted );
connect( mButtonBox, &QDialogButtonBox::rejected, this, &QgsSimplifyUserInputWidget::rejected );
}

void QgsSimplifyDialog::updateStatusText()
void QgsSimplifyUserInputWidget::setConfig( const QgsMapToolSimplify::Method &method,
const double &tolerance,
const QgsTolerance::UnitType &units,
const double &smoothOffset,
const int &smoothIterations )
{
labelStatus->setText( mTool->statusText() );
mMethodComboBox->setCurrentIndex( mMethodComboBox->findData( method ) );

mSpinToleranceSpinBox->setValue( tolerance );
mToleranceUnitsComboBox->setCurrentIndex( mToleranceUnitsComboBox->findData( units ) );
mOffsetSpin->setValue( 100 * smoothOffset );
mIterationsSpin->setValue( smoothIterations );
}

void QgsSimplifyDialog::enableOkButton( bool enabled )
void QgsSimplifyUserInputWidget::updateStatusText( const QString &text )
{
okButton->setEnabled( enabled );
labelStatus->setText( text );
}

void QgsSimplifyDialog::closeEvent( QCloseEvent *e )
void QgsSimplifyUserInputWidget::enableOkButton( bool enabled )
{
QDialog::closeEvent( e );
mTool->clearSelection();
mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( enabled );
}


////////////////////////////////////////////////////////////////////////////


@@ -101,14 +109,11 @@ QgsMapToolSimplify::QgsMapToolSimplify( QgsMapCanvas *canvas )
mMethod = static_cast< QgsMapToolSimplify::Method >( settings.value( QStringLiteral( "digitizing/simplify_method" ), 0 ).toInt() );
mSmoothIterations = settings.value( QStringLiteral( "digitizing/smooth_iterations" ), 1 ).toInt();
mSmoothOffset = settings.value( QStringLiteral( "digitizing/smooth_offset" ), 0.25 ).toDouble();

mSimplifyDialog = new QgsSimplifyDialog( this, canvas->topLevelWidget() );
}

QgsMapToolSimplify::~QgsMapToolSimplify()
{
clearSelection();
delete mSimplifyDialog;
}


@@ -123,10 +128,8 @@ void QgsMapToolSimplify::setTolerance( double tolerance )
updateSimplificationPreview();
}

void QgsMapToolSimplify::setToleranceUnits( int units )
void QgsMapToolSimplify::setToleranceUnits( const QgsTolerance::UnitType &units )
{
mToleranceUnits = ( QgsTolerance::UnitType ) units;

QgsSettings settings;
settings.setValue( QStringLiteral( "digitizing/simplify_tolerance_units" ), units );

@@ -156,8 +159,28 @@ void QgsMapToolSimplify::updateSimplificationPreview()
++i;
}

mSimplifyDialog->updateStatusText();
mSimplifyDialog->enableOkButton( !mReducedHasErrors );
if ( mSimplifyUserWidget )
{
mSimplifyUserWidget->updateStatusText( statusText() );
mSimplifyUserWidget->enableOkButton( !mReducedHasErrors );
}
}

void QgsMapToolSimplify::createUserInputWidget()
{
mSimplifyUserWidget = new QgsSimplifyUserInputWidget( );
mSimplifyUserWidget->setConfig( method(), tolerance(), toleranceUnits(), smoothOffset(), smoothIterations() );

connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::methodChanged, this, &QgsMapToolSimplify::setMethod );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::toleranceChanged, this, &QgsMapToolSimplify::setTolerance );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::toleranceUnitsChanged, this, &QgsMapToolSimplify::setToleranceUnits );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::smoothOffsetChanged, this, &QgsMapToolSimplify::setSmoothOffset );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::smoothIterationsChanged, this, &QgsMapToolSimplify::setSmoothIterations );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::accepted, this, &QgsMapToolSimplify::storeSimplified );
connect( mSimplifyUserWidget, &QgsSimplifyUserInputWidget::rejected, this, &QgsMapToolSimplify::clearSelection );

QgisApp::instance()->addUserInputWidget( mSimplifyUserWidget );
mSimplifyUserWidget->setFocus( Qt::TabFocusReason );
}

QgsGeometry QgsMapToolSimplify::processGeometry( const QgsGeometry &geometry, double tolerance ) const
@@ -295,10 +318,13 @@ void QgsMapToolSimplify::canvasMoveEvent( QgsMapMouseEvent *e )

void QgsMapToolSimplify::canvasReleaseEvent( QgsMapMouseEvent *e )
{
if ( e->button() != Qt::LeftButton )
if ( e->button() == Qt::RightButton )
{
clearSelection();
return;
}

if ( !currentVectorLayer() )
if ( e->button() != Qt::LeftButton || !currentVectorLayer() )
return;

delete mSelectionRubberBand;
@@ -340,10 +366,8 @@ void QgsMapToolSimplify::canvasReleaseEvent( QgsMapMouseEvent *e )
rb->show();
mRubberBands << rb;
}
createUserInputWidget();
updateSimplificationPreview();

// show dialog as a non-modal window
mSimplifyDialog->show();
}


@@ -399,7 +423,8 @@ void QgsMapToolSimplify::selectFeaturesInRect()
void QgsMapToolSimplify::clearSelection()
{
mSelectedFeatures.clear();

delete mSimplifyUserWidget;
mSimplifyUserWidget = nullptr;
qDeleteAll( mRubberBands );
mRubberBands.clear();
}
@@ -408,9 +433,6 @@ void QgsMapToolSimplify::deactivate()
{
delete mSelectionRubberBand;
mSelectionRubberBand = nullptr;

if ( mSimplifyDialog->isVisible() )
mSimplifyDialog->close();
clearSelection();
QgsMapTool::deactivate();
}
58 src/app/qgsmaptoolsimplify.h
View file
@@ -27,27 +27,7 @@
class QgsRubberBand;
class QgsMapToolSimplify;
class QgsCoordinateTransform;

class APP_EXPORT QgsSimplifyDialog : public QDialog, private Ui::SimplifyLineDialog
{
Q_OBJECT

public:

QgsSimplifyDialog( QgsMapToolSimplify *tool, QWidget *parent = nullptr );

void updateStatusText();
void enableOkButton( bool enabled );

protected:

//! Also cancels pending simplification
void closeEvent( QCloseEvent *e ) override;

private:
QgsMapToolSimplify *mTool = nullptr;

};
class QgsSimplifyUserInputWidget;


//! Map tool to simplify line/polygon features
@@ -82,8 +62,6 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit

Method method() const;

void setMethod( Method method );

int smoothIterations() const;
void setSmoothIterations( int smoothIterations );

@@ -94,20 +72,24 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit
//! Slot to change display when slidebar is moved
void setTolerance( double tolerance );

void setToleranceUnits( int units );
void setToleranceUnits( const QgsTolerance::UnitType &units );

//! Slot to store feature after simplification
void storeSimplified();

void clearSelection();

void setMethod( Method method );

private:

void selectOneFeature( QPoint canvasPoint );
void selectFeaturesInRect();

void updateSimplificationPreview();

void createUserInputWidget();

/**
* Simplifies a \a geometry to the specified \a tolerance, respecting the preset
* simplification method.
@@ -116,7 +98,7 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit

// data
//! Dialog with slider to set correct tolerance value
QgsSimplifyDialog *mSimplifyDialog = nullptr;
QgsSimplifyUserInputWidget *mSimplifyUserWidget = nullptr;

//! Rubber bands to draw current state of simplification
QList<QgsRubberBand *> mRubberBands;
@@ -143,6 +125,32 @@ class APP_EXPORT QgsMapToolSimplify: public QgsMapToolEdit

int mSmoothIterations = 1;
double mSmoothOffset = 0.25;
};


class APP_EXPORT QgsSimplifyUserInputWidget : public QWidget, private Ui::SimplifyUserInputWidgetBase
{
Q_OBJECT

public:

QgsSimplifyUserInputWidget( QWidget *parent = nullptr );

void updateStatusText( const QString &text );
void enableOkButton( bool enabled );

void setConfig( const QgsMapToolSimplify::Method &method, const double &tolerance,
const QgsTolerance::UnitType &units, const double &smoothOffset,
const int &smoothIterations );

signals:
void accepted();
void rejected();
void toleranceChanged( double tolerance );
void toleranceUnitsChanged( QgsTolerance::UnitType units );
void methodChanged( QgsMapToolSimplify::Method method );
void smoothOffsetChanged( double offset );
void smoothIterationsChanged( int iterations );

};

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