21#include <QGraphicsRectItem>
22#include <QGraphicsEllipseItem>
23#include <QGraphicsPolygonItem>
48 const double dx = position.x() -
start.x();
49 const double dy = position.y() -
start.y();
51 if ( constrainSquare )
53 if ( std::fabs( dx ) > std::fabs( dy ) )
55 width = std::fabs( dx );
60 height = std::fabs( dy );
64 x =
start.x() - ( ( dx < 0 ) ? width : 0 );
65 y =
start.y() - ( ( dy < 0 ) ? height : 0 );
95 x =
start.x() - width;
96 y =
start.y() - height;
101 return QRectF( x, y, width, height );
137 if ( mRubberBandItem )
139 layout()->removeItem( mRubberBandItem );
140 delete mRubberBandItem;
147 mRubberBandItem =
new QGraphicsRectItem( 0, 0, 0, 0 );
148 mRubberBandItem->setBrush(
brush() );
149 mRubberBandItem->setPen(
pen() );
150 mRubberBandStartPos = position;
151 t.translate( position.x(), position.y() );
152 mRubberBandItem->setTransform( t );
154 layout()->addItem( mRubberBandItem );
160 if ( !mRubberBandItem )
165 const bool constrainSquare = modifiers & Qt::ShiftModifier;
166 const bool fromCenter = modifiers & Qt::AltModifier;
168 const QRectF newRect =
updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
169 mRubberBandItem->setRect( 0, 0, newRect.width(), newRect.height() );
171 t.translate( newRect.x(), newRect.y() );
172 mRubberBandItem->setTransform( t );
179 const bool constrainSquare = modifiers & Qt::ShiftModifier;
180 const bool fromCenter = modifiers & Qt::AltModifier;
182 if ( mRubberBandItem )
184 layout()->removeItem( mRubberBandItem );
185 delete mRubberBandItem;
186 mRubberBandItem =
nullptr;
188 return updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
204 if ( mRubberBandItem )
206 layout()->removeItem( mRubberBandItem );
207 delete mRubberBandItem;
214 mRubberBandItem =
new QGraphicsEllipseItem( 0, 0, 0, 0 );
215 mRubberBandItem->setBrush(
brush() );
216 mRubberBandItem->setPen(
pen() );
217 mRubberBandStartPos = position;
218 t.translate( position.x(), position.y() );
219 mRubberBandItem->setTransform( t );
221 layout()->addItem( mRubberBandItem );
227 if ( !mRubberBandItem )
232 const bool constrainSquare = modifiers & Qt::ShiftModifier;
233 const bool fromCenter = modifiers & Qt::AltModifier;
235 const QRectF newRect =
updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
236 mRubberBandItem->setRect( 0, 0, newRect.width(), newRect.height() );
238 t.translate( newRect.x(), newRect.y() );
239 mRubberBandItem->setTransform( t );
246 const bool constrainSquare = modifiers & Qt::ShiftModifier;
247 const bool fromCenter = modifiers & Qt::AltModifier;
249 if ( mRubberBandItem )
251 layout()->removeItem( mRubberBandItem );
252 delete mRubberBandItem;
253 mRubberBandItem =
nullptr;
255 return updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
275 if ( mRubberBandItem )
277 layout()->removeItem( mRubberBandItem );
278 delete mRubberBandItem;
285 mRubberBandItem =
new QGraphicsPolygonItem();
286 mRubberBandItem->setBrush(
brush() );
287 mRubberBandItem->setPen(
pen() );
288 mRubberBandStartPos = position;
289 t.translate( position.x(), position.y() );
290 mRubberBandItem->setTransform( t );
292 layout()->addItem( mRubberBandItem );
298 if ( !mRubberBandItem )
303 const bool constrainSquare = modifiers & Qt::ShiftModifier;
304 const bool fromCenter = modifiers & Qt::AltModifier;
306 const QRectF newRect =
updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
308 const QPolygonF shapePolygon = QPolygonF() << QPointF( 0, newRect.height() )
309 << QPointF( newRect.width(), newRect.height() )
310 << QPointF( newRect.width() / 2.0, 0 )
311 << QPointF( 0, newRect.height() );
313 mRubberBandItem->setPolygon( shapePolygon );
315 t.translate( newRect.x(), newRect.y() );
316 mRubberBandItem->setTransform( t );
323 const bool constrainSquare = modifiers & Qt::ShiftModifier;
324 const bool fromCenter = modifiers & Qt::AltModifier;
326 if ( mRubberBandItem )
328 layout()->removeItem( mRubberBandItem );
329 delete mRubberBandItem;
330 mRubberBandItem =
nullptr;
332 return updateRect( mRubberBandStartPos, position, constrainSquare, fromCenter );
QgsLayoutViewEllipseRubberBand is elliptical rubber band for use within QgsLayoutView widgets.
QgsLayoutViewEllipticalRubberBand(QgsLayoutView *view=nullptr)
Constructor for QgsLayoutViewEllipticalRubberBand.
void update(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be updated to reflect a temporary ending position (in layout coordin...
QgsLayoutViewEllipticalRubberBand * create(QgsLayoutView *view) const override
Creates a new instance of the QgsLayoutViewRubberBand subclass.
~QgsLayoutViewEllipticalRubberBand() override
void start(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be created at the specified starting position (in layout coordinate ...
QRectF finish(QPointF position=QPointF(), Qt::KeyboardModifiers modifiers=Qt::KeyboardModifiers()) override
Called when a rubber band use has finished and the rubber band is no longer required.
QgsLayoutViewRectangularRubberBand is rectangular rubber band for use within QgsLayoutView widgets.
QgsLayoutViewRectangularRubberBand * create(QgsLayoutView *view) const override
Creates a new instance of the QgsLayoutViewRubberBand subclass.
void update(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be updated to reflect a temporary ending position (in layout coordin...
QgsLayoutViewRectangularRubberBand(QgsLayoutView *view=nullptr)
Constructor for QgsLayoutViewRectangularRubberBand.
void start(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be created at the specified starting position (in layout coordinate ...
~QgsLayoutViewRectangularRubberBand() override
QRectF finish(QPointF position=QPointF(), Qt::KeyboardModifiers modifiers=Qt::KeyboardModifiers()) override
Called when a rubber band use has finished and the rubber band is no longer required.
QgsLayoutViewRubberBand is an abstract base class for temporary rubber band items in various shapes,...
QgsLayoutViewRubberBand(QgsLayoutView *view=nullptr)
Constructor for QgsLayoutViewRubberBand.
QgsLayoutView * view() const
Returns the view associated with the rubber band.
void sizeChanged(const QString &size)
Emitted when the size of the rubber band is changed.
QBrush brush() const
Returns the brush used for drawing the rubber band.
virtual void start(QPointF position, Qt::KeyboardModifiers modifiers)=0
Called when a rubber band should be created at the specified starting position (in layout coordinate ...
void setPen(const QPen &pen)
Sets the pen used for drawing the rubber band.
void setBrush(const QBrush &brush)
Sets the brush used for drawing the rubber band.
QgsLayout * layout() const
Returns the layout associated with the rubber band.
QPen pen() const
Returns the pen used for drawing the rubber band.
QRectF updateRect(QPointF start, QPointF position, bool constrainSquare, bool fromCenter)
Calculates an updated bounding box rectangle from a original start position and new position.
QgsLayoutViewTriangleRubberBand is triangular rubber band for use within QgsLayoutView widgets.
QRectF finish(QPointF position=QPointF(), Qt::KeyboardModifiers modifiers=Qt::KeyboardModifiers()) override
Called when a rubber band use has finished and the rubber band is no longer required.
QgsLayoutViewTriangleRubberBand(QgsLayoutView *view=nullptr)
Constructor for QgsLayoutViewTriangleRubberBand.
QgsLayoutViewTriangleRubberBand * create(QgsLayoutView *view) const override
Creates a new instance of the QgsLayoutViewRubberBand subclass.
void update(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be updated to reflect a temporary ending position (in layout coordin...
~QgsLayoutViewTriangleRubberBand() override
void start(QPointF position, Qt::KeyboardModifiers modifiers) override
Called when a rubber band should be created at the specified starting position (in layout coordinate ...
A graphical widget to display and interact with QgsLayouts.
QgsLayout * currentLayout
Base class for layouts, which can contain items such as maps, labels, scalebars, etc.
@ ZViewTool
Z-value for temporary view tool items.
static Q_INVOKABLE QString toAbbreviatedString(Qgis::DistanceUnit unit)
Returns a translated abbreviation representing a distance unit.