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Merge pull request #1030 from alexbruy/fill-ring
[FEATURE] fill ring digitinzing tool
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,190 @@ | ||
| /*************************************************************************** | ||
| qgsmaptoolfillring.h - map tool to cut rings in polygon and multipolygon | ||
| features and fill them with new feature | ||
| --------------------- | ||
| begin : December 2013 | ||
| copyright : (C) 2013 by Alexander Bruy | ||
| email : alexander dot bruy at gmail dot 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 "qgsmaptoolfillring.h" | ||
| #include "qgsgeometry.h" | ||
| #include "qgsmapcanvas.h" | ||
| #include "qgsvectorlayer.h" | ||
| #include "qgsattributedialog.h" | ||
| #include <qgsapplication.h> | ||
|
|
||
| #include <QMessageBox> | ||
| #include <QMouseEvent> | ||
|
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||
| #include <limits> | ||
|
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| QgsMapToolFillRing::QgsMapToolFillRing( QgsMapCanvas* canvas ): QgsMapToolCapture( canvas, QgsMapToolCapture::CapturePolygon ) | ||
| { | ||
|
|
||
| } | ||
|
|
||
| QgsMapToolFillRing::~QgsMapToolFillRing() | ||
| { | ||
|
|
||
| } | ||
|
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| void QgsMapToolFillRing::canvasReleaseEvent( QMouseEvent * e ) | ||
| { | ||
| //check if we operate on a vector layer | ||
| QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mCanvas->currentLayer() ); | ||
|
|
||
| if ( !vlayer ) | ||
| { | ||
| notifyNotVectorLayer(); | ||
| return; | ||
| } | ||
|
|
||
| if ( !vlayer->isEditable() ) | ||
| { | ||
| notifyNotEditableLayer(); | ||
| return; | ||
| } | ||
|
|
||
| //add point to list and to rubber band | ||
| if ( e->button() == Qt::LeftButton ) | ||
| { | ||
| int error = addVertex( e->pos() ); | ||
| if ( error == 1 ) | ||
| { | ||
| //current layer is not a vector layer | ||
| return; | ||
| } | ||
| else if ( error == 2 ) | ||
| { | ||
| //problem with coordinate transformation | ||
| QMessageBox::information( 0, tr( "Coordinate transform error" ), | ||
| tr( "Cannot transform the point to the layers coordinate system" ) ); | ||
| return; | ||
| } | ||
|
|
||
| startCapturing(); | ||
| } | ||
| else if ( e->button() == Qt::RightButton ) | ||
| { | ||
| deleteTempRubberBand(); | ||
|
|
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| closePolygon(); | ||
|
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||
| vlayer->beginEditCommand( tr( "Ring added and filled" ) ); | ||
| int addRingReturnCode = vlayer->addRing( points() ); | ||
| if ( addRingReturnCode != 0 ) | ||
| { | ||
| QString errorMessage; | ||
| //todo: open message box to communicate errors | ||
| if ( addRingReturnCode == 1 ) | ||
| { | ||
| errorMessage = tr( "A problem with geometry type occured" ); | ||
| } | ||
| else if ( addRingReturnCode == 2 ) | ||
| { | ||
| errorMessage = tr( "The inserted Ring is not closed" ); | ||
| } | ||
| else if ( addRingReturnCode == 3 ) | ||
| { | ||
| errorMessage = tr( "The inserted Ring is not a valid geometry" ); | ||
| } | ||
| else if ( addRingReturnCode == 4 ) | ||
| { | ||
| errorMessage = tr( "The inserted Ring crosses existing rings" ); | ||
| } | ||
| else if ( addRingReturnCode == 5 ) | ||
| { | ||
| errorMessage = tr( "The inserted Ring is not contained in a feature" ); | ||
| } | ||
| else | ||
| { | ||
| errorMessage = tr( "An unknown error occured" ); | ||
| } | ||
| QMessageBox::critical( 0, tr( "Error, could not add ring" ), errorMessage ); | ||
| vlayer->destroyEditCommand(); | ||
| } | ||
| else | ||
| { | ||
| // find parent feature and get it attributes | ||
| double xMin, xMax, yMin, yMax; | ||
| QgsRectangle bBox; | ||
|
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||
| xMin = std::numeric_limits<double>::max(); | ||
| xMax = -std::numeric_limits<double>::max(); | ||
| yMin = std::numeric_limits<double>::max(); | ||
| yMax = -std::numeric_limits<double>::max(); | ||
|
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||
| for ( QList<QgsPoint>::const_iterator it = points().constBegin(); it != points().constEnd(); ++it ) | ||
| { | ||
| if ( it->x() < xMin ) | ||
| { | ||
| xMin = it->x(); | ||
| } | ||
| if ( it->x() > xMax ) | ||
| { | ||
| xMax = it->x(); | ||
| } | ||
| if ( it->y() < yMin ) | ||
| { | ||
| yMin = it->y(); | ||
| } | ||
| if ( it->y() > yMax ) | ||
| { | ||
| yMax = it->y(); | ||
| } | ||
| } | ||
| bBox.setXMinimum( xMin ); | ||
| bBox.setYMinimum( yMin ); | ||
| bBox.setXMaximum( xMax ); | ||
| bBox.setYMaximum( yMax ); | ||
|
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| QgsFeatureIterator fit = vlayer->getFeatures( QgsFeatureRequest().setFilterRect( bBox ).setFlags( QgsFeatureRequest::ExactIntersect ) ); | ||
|
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| QgsFeature f; | ||
| bool res = false; | ||
| while ( fit.nextFeature( f ) ) | ||
| { | ||
| //create QgsFeature with wkb representation | ||
| QgsFeature* ft = new QgsFeature( vlayer->pendingFields(), 0 ); | ||
|
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| QgsGeometry *g; | ||
| g = QgsGeometry::fromPolygon( QgsPolygon() << points().toVector() ); | ||
| ft->setGeometry( g ); | ||
| ft->setAttributes( f.attributes() ); | ||
|
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||
| if ( QgsApplication::keyboardModifiers() == Qt::ControlModifier ) | ||
| { | ||
| res = vlayer->addFeature( *ft ); | ||
| } | ||
| else | ||
| { | ||
| QgsAttributeDialog *dialog = new QgsAttributeDialog( vlayer, ft, false, NULL, true ); | ||
| if ( dialog->exec() ) | ||
| { | ||
| res = vlayer->addFeature( *ft ); | ||
| } | ||
| } | ||
|
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| if ( res ) | ||
| { | ||
| vlayer->endEditCommand(); | ||
| } | ||
| else | ||
| { | ||
| delete ft; | ||
| vlayer->destroyEditCommand(); | ||
| } | ||
| res = false; | ||
| } | ||
| } | ||
| stopCapturing(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| /*************************************************************************** | ||
| qgsmaptoolfillring.h - map tool to cut rings in polygon and multipolygon | ||
| features and fill them with new feature | ||
| --------------------- | ||
| begin : December 2013 | ||
| copyright : (C) 2013 by Alexander Bruy | ||
| email : alexander dot bruy at gmail dot 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 "qgsmaptoolcapture.h" | ||
|
|
||
| /** A tool to cut holes into polygon and multipolygon features and fill them | ||
| * with new feature. Attributes are copied from parent feature. | ||
| * */ | ||
| class APP_EXPORT QgsMapToolFillRing: public QgsMapToolCapture | ||
| { | ||
| Q_OBJECT | ||
| public: | ||
| QgsMapToolFillRing( QgsMapCanvas* canvas ); | ||
| virtual ~QgsMapToolFillRing(); | ||
| void canvasReleaseEvent( QMouseEvent * e ); | ||
| }; |
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