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Merge pull request #5780 from pblottiere/bugfix_reshape2

[bugfix]  Do not add binding line in both side in reshape map tool
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pblottiere committed Dec 6, 2017
2 parents ed50762 + b7fe407 commit 14e6df450a9feec5f1ee50ea4a55acc7410a2f3e
@@ -151,7 +151,7 @@ Removes the last vertex from mRubberBand and mCaptureList
:rtype: int
%End

QVector<QgsPointXY> points();
QVector<QgsPointXY> points() const;
%Docstring
List of digitized points
:return: List of points
@@ -74,74 +74,116 @@ void QgsMapToolReshape::cadCanvasReleaseEvent( QgsMapMouseEvent *e )
stopCapturing();
return;
}
QgsPointXY firstPoint = points().at( 0 );
QgsRectangle bbox( firstPoint.x(), firstPoint.y(), firstPoint.x(), firstPoint.y() );
for ( int i = 1; i < size(); ++i )

reshape( vlayer );

stopCapturing();
}
}

bool QgsMapToolReshape::isBindingLine( QgsVectorLayer *vlayer, const QgsRectangle &bbox ) const
{
if ( vlayer->geometryType() != QgsWkbTypes::LineGeometry )
return false;

bool begin = false;
bool end = false;
const QgsPointXY beginPoint = points().first();
const QgsPointXY endPoint = points().last();

QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( bbox ).setSubsetOfAttributes( QgsAttributeList() ) );
QgsFeature f;

// check that extremities of the new line are contained by features
while ( fit.nextFeature( f ) )
{
const QgsGeometry geom = f.geometry();
if ( !geom.isNull() )
{
bbox.combineExtentWith( points().at( i ).x(), points().at( i ).y() );
const QgsPolylineXY line = geom.asPolyline();

if ( line.contains( beginPoint ) )
begin = true;
else if ( line.contains( endPoint ) )
end = true;
}
}

QgsLineString reshapeLineString( points() );
if ( QgsWkbTypes::hasZ( vlayer->wkbType() ) )
reshapeLineString.addZValue( defaultZValue() );
return end && begin;
}

void QgsMapToolReshape::reshape( QgsVectorLayer *vlayer )
{
QgsPointXY firstPoint = points().at( 0 );
QgsRectangle bbox( firstPoint.x(), firstPoint.y(), firstPoint.x(), firstPoint.y() );
for ( int i = 1; i < size(); ++i )
{
bbox.combineExtentWith( points().at( i ).x(), points().at( i ).y() );
}

//query all the features that intersect bounding box of capture line
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( bbox ).setSubsetOfAttributes( QgsAttributeList() ) );
QgsFeature f;
int reshapeReturn;
bool reshapeDone = false;
QgsLineString reshapeLineString( points() );
if ( QgsWkbTypes::hasZ( vlayer->wkbType() ) )
reshapeLineString.addZValue( defaultZValue() );

vlayer->beginEditCommand( tr( "Reshape" ) );
while ( fit.nextFeature( f ) )
//query all the features that intersect bounding box of capture line
QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( bbox ).setSubsetOfAttributes( QgsAttributeList() ) );
QgsFeature f;
int reshapeReturn;
bool reshapeDone = false;
bool isBinding = isBindingLine( vlayer, bbox );

vlayer->beginEditCommand( tr( "Reshape" ) );
while ( fit.nextFeature( f ) )
{
//query geometry
//call geometry->reshape(mCaptureList)
//register changed geometry in vector layer
QgsGeometry geom = f.geometry();
if ( !geom.isNull() )
{
//query geometry
//call geometry->reshape(mCaptureList)
//register changed geometry in vector layer
QgsGeometry geom = f.geometry();
if ( !geom.isNull() )
// in case of a binding line, we just want to update the line from
// the starting point and not both side
if ( isBinding && !geom.asPolyline().contains( points().first() ) )
continue;

reshapeReturn = geom.reshapeGeometry( reshapeLineString );
if ( reshapeReturn == 0 )
{
reshapeReturn = geom.reshapeGeometry( reshapeLineString );
if ( reshapeReturn == 0 )
//avoid intersections on polygon layers
if ( vlayer->geometryType() == QgsWkbTypes::PolygonGeometry )
{
//avoid intersections on polygon layers
if ( vlayer->geometryType() == QgsWkbTypes::PolygonGeometry )
//ignore all current layer features as they should be reshaped too
QHash<QgsVectorLayer *, QSet<QgsFeatureId> > ignoreFeatures;
ignoreFeatures.insert( vlayer, vlayer->allFeatureIds() );

if ( geom.avoidIntersections( QgsProject::instance()->avoidIntersectionsLayers(), ignoreFeatures ) != 0 )
{
//ignore all current layer features as they should be reshaped too
QHash<QgsVectorLayer *, QSet<QgsFeatureId> > ignoreFeatures;
ignoreFeatures.insert( vlayer, vlayer->allFeatureIds() );

if ( geom.avoidIntersections( QgsProject::instance()->avoidIntersectionsLayers(), ignoreFeatures ) != 0 )
{
emit messageEmitted( tr( "An error was reported during intersection removal" ), QgsMessageBar::CRITICAL );
vlayer->destroyEditCommand();
stopCapturing();
return;
}

if ( geom.isEmpty() ) //intersection removal might have removed the whole geometry
{
emit messageEmitted( tr( "The feature cannot be reshaped because the resulting geometry is empty" ), QgsMessageBar::CRITICAL );
vlayer->destroyEditCommand();
stopCapturing();
return;
}
emit messageEmitted( tr( "An error was reported during intersection removal" ), QgsMessageBar::CRITICAL );
vlayer->destroyEditCommand();
stopCapturing();
return;
}

vlayer->changeGeometry( f.id(), geom );
reshapeDone = true;
if ( geom.isEmpty() ) //intersection removal might have removed the whole geometry
{
emit messageEmitted( tr( "The feature cannot be reshaped because the resulting geometry is empty" ), QgsMessageBar::CRITICAL );
vlayer->destroyEditCommand();
return;
}
}
}
}

if ( reshapeDone )
{
vlayer->endEditCommand();
}
else
{
vlayer->destroyEditCommand();
vlayer->changeGeometry( f.id(), geom );
reshapeDone = true;
}
}
}

stopCapturing();
if ( reshapeDone )
{
vlayer->endEditCommand();
}
else
{
vlayer->destroyEditCommand();
}
}
@@ -27,6 +27,13 @@ class APP_EXPORT QgsMapToolReshape: public QgsMapToolCapture
public:
QgsMapToolReshape( QgsMapCanvas *canvas );
void cadCanvasReleaseEvent( QgsMapMouseEvent *e ) override;

private:
void reshape( QgsVectorLayer *vlayer );

bool isBindingLine( QgsVectorLayer *vlayer, const QgsRectangle &bbox ) const;

friend class TestQgsMapToolReshape;
};

#endif
@@ -763,7 +763,7 @@ int QgsMapToolCapture::size()
return mCaptureCurve.numPoints();
}

QVector<QgsPointXY> QgsMapToolCapture::points()
QVector<QgsPointXY> QgsMapToolCapture::points() const
{
QgsPointSequence pts;
QVector<QgsPointXY> points;
@@ -192,7 +192,7 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
* List of digitized points
* \returns List of points
*/
QVector<QgsPointXY> points();
QVector<QgsPointXY> points() const;

/**
* Set the points on which to work
@@ -259,6 +259,8 @@ class GUI_EXPORT QgsMapToolCapture : public QgsMapToolAdvancedDigitizing
*/
QgsPointXY mTracingStartPoint;

friend class TestQgsMapToolReshape;

#ifdef Q_OS_WIN
int mSkipNextContextMenuEvent;
#endif
@@ -98,6 +98,7 @@ ADD_QGIS_TEST(fieldcalculatortest testqgsfieldcalculator.cpp)
ADD_QGIS_TEST(maptooladdfeature testqgsmaptooladdfeature.cpp)
ADD_QGIS_TEST(maptoolidentifyaction testqgsmaptoolidentifyaction.cpp)
ADD_QGIS_TEST(maptoolselect testqgsmaptoolselect.cpp)
ADD_QGIS_TEST(maptoolreshape testqgsmaptoolreshape.cpp)
ADD_QGIS_TEST(measuretool testqgsmeasuretool.cpp)
ADD_QGIS_TEST(nodetool testqgsnodetool.cpp)
ADD_QGIS_TEST(vectorlayersaveasdialogtest testqgsvectorlayersaveasdialog.cpp)
@@ -0,0 +1,143 @@
/***************************************************************************
testqgsmaptoolreshape.cpp
--------------------------------
Date : 2017-12-1
Copyright : (C) 2017 by Paul Blottiere
Email : paul.blottiere@oslandia.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 "qgstest.h"
#include "qgsapplication.h"
#include "qgsmapcanvas.h"
#include "qgsvectorlayer.h"
#include "qgslinestring.h"
#include "qgsmaptoolreshape.h"
#include "qgisapp.h"

class TestQgsMapToolReshape : public QObject
{
Q_OBJECT
public:
TestQgsMapToolReshape() = default;

private slots:
void initTestCase(); // will be called before the first testfunction is executed.
void cleanupTestCase(); // will be called after the last testfunction was executed.
void init(); // will be called before each testfunction is executed.
void cleanup(); // will be called after every testfunction.

void reshapeWithBindingLine();

private:
QgisApp *mQgisApp = nullptr;
};

void TestQgsMapToolReshape::initTestCase()
{
QgsApplication::init();
QgsApplication::initQgis();

// Set up the QgsSettings environment
QCoreApplication::setOrganizationName( QStringLiteral( "QGIS" ) );
QCoreApplication::setOrganizationDomain( QStringLiteral( "qgis.org" ) );
QCoreApplication::setApplicationName( QStringLiteral( "QGIS-TEST" ) );

QgsApplication::showSettings();

// enforce C locale because the tests expect it
// (decimal separators / thousand separators)
QLocale::setDefault( QLocale::c() );

mQgisApp = new QgisApp();
}

void TestQgsMapToolReshape::cleanupTestCase()
{
QgsApplication::exitQgis();
}

void TestQgsMapToolReshape::init()
{
}

void TestQgsMapToolReshape::cleanup()
{
}

void TestQgsMapToolReshape::reshapeWithBindingLine()
{
// prepare vector layer
std::unique_ptr<QgsVectorLayer> vl;
vl.reset( new QgsVectorLayer( QStringLiteral( "LineString?crs=epsg:4326&field=name:string(20)" ), QStringLiteral( "vl" ), QStringLiteral( "memory" ) ) );

QgsGeometry g0 = QgsGeometry::fromWkt( "LineString (0 0, 1 1, 1 2)" );
QgsFeature f0;
f0.setGeometry( g0 );
f0.setAttribute( 0, "polyline0" );

QgsGeometry g1 = QgsGeometry::fromWkt( "LineString (2 1, 3 2, 3 3, 2 2)" );
QgsFeature f1;
f1.setGeometry( g1 );
f1.setAttribute( 0, "polyline1" );

vl->dataProvider()->addFeatures( QgsFeatureList() << f0 << f1 );

// prepare canvas
QList<QgsMapLayer *> layers;
layers.append( vl.get() );

QgsCoordinateReferenceSystem srs( 4326, QgsCoordinateReferenceSystem::EpsgCrsId );
mQgisApp->mapCanvas()->setDestinationCrs( srs );
mQgisApp->mapCanvas()->setLayers( layers );
mQgisApp->mapCanvas()->setCurrentLayer( vl.get() );

// reshape to add line to polyline0
QgsLineString cl0;
cl0.setPoints( QgsPointSequence() << QgsPoint( 1, 2 ) << QgsPoint( 2, 1 ) );

QgsCompoundCurve curve0( *cl0.toCurveType() );

QgsMapToolReshape tool0( mQgisApp->mapCanvas() );
tool0.mCaptureCurve = curve0;

vl->startEditing();
tool0.reshape( vl.get() );

f0 = vl->getFeature( 1 );
QCOMPARE( f0.geometry().asWkt(), QStringLiteral( "LineString (0 0, 1 1, 1 2, 2 1)" ) );

f1 = vl->getFeature( 2 );
QCOMPARE( f1.geometry().asWkt(), QStringLiteral( "LineString (2 1, 3 2, 3 3, 2 2)" ) );

vl->rollBack();

// reshape to add line to polyline1
QgsLineString cl1;
cl1.setPoints( QgsPointSequence() << QgsPoint( 2, 1 ) << QgsPoint( 1, 2 ) );

QgsCompoundCurve curve1( *cl1.toCurveType() );

QgsMapToolReshape tool1( mQgisApp->mapCanvas() );
tool1.mCaptureCurve = curve1;

vl->startEditing();
tool1.reshape( vl.get() );

f0 = vl->getFeature( 1 );
QCOMPARE( f0.geometry().asWkt(), QStringLiteral( "LineString (0 0, 1 1, 1 2)" ) );

f1 = vl->getFeature( 2 );
QCOMPARE( f1.geometry().asWkt(), QStringLiteral( "LineString (1 2, 2 1, 3 2, 3 3, 2 2)" ) );

vl->rollBack();
}

QGSTEST_MAIN( TestQgsMapToolReshape )
#include "testqgsmaptoolreshape.moc"

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