The QgsAdvancedDigitizingDockWidget class is a dockable widget used to handle the CAD tools on top of a selection of map tools. More...

#include <qgsadvanceddigitizingdockwidget.h>

Inheritance diagram for QgsAdvancedDigitizingDockWidget:

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Classes
class	CadConstraint
	The CadConstraint is an abstract class for all basic constraints (angle/distance/x/y). More...

Public Types
enum	AdditionalConstraint { NoConstraint, Perpendicular, Parallel }
	Additional constraints which can be enabled. More...

enum	CadCapacity { AbsoluteAngle = 1, RelativeAngle = 2, RelativeCoordinates = 4 }
	The CadCapacity enum defines the possible constraints to be set depending on the number of points in the CAD point list (the list of points currently digitized) More...

Signals
void	pointChanged (const QgsPointXY &point)
	Sometimes a constraint may change the current point out of a mouse event. More...

void	popWarning ()
	Remove any previously emitted warnings (if any) More...

void	pushWarning (const QString &message)
	Push a warning. More...

Signals inherited from QgsDockWidget
void	closed ()
	Emitted when dock widget is closed. More...

void	closedStateChanged (bool wasClosed)
	Emitted when dock widget is closed (or opened). More...

void	opened ()
	Emitted when dock widget is opened. More...

void	openedStateChanged (bool wasOpened)
	Emitted when dock widget is opened (or closed). More...

Public Member Functions
	QgsAdvancedDigitizingDockWidget (QgsMapCanvas canvas, QWidget parent=nullptr)
	Create an advanced digitizing dock widget. More...

AdditionalConstraint	additionalConstraint () const
	Additional constraints are used to place perpendicular/parallel segments to snapped segments on the canvas. More...

void	addPoint (const QgsPointXY &point)
	Adds point to the CAD point list. More...

bool	alignToSegment (QgsMapMouseEvent *e, QgsAdvancedDigitizingDockWidget::CadConstraint::LockMode lockMode=QgsAdvancedDigitizingDockWidget::CadConstraint::HardLock)
	align to segment for additional constraint. More...

bool	applyConstraints (QgsMapMouseEvent *e)
	apply the CAD constraints. More...

bool	cadEnabled () const
	determines if CAD tools are enabled or if map tools behaves "nomally" More...

bool	canvasKeyPressEventFilter (QKeyEvent *e)
	Filter key events to e.g. More...

void	clear ()
	Clear any cached previous clicks and helper lines. More...

void	clearPoints ()
	Removes all points from the CAD point list. More...

bool	commonAngleConstraint () const
	Constraint on a common angle. More...

const CadConstraint *	constraintAngle () const
	Constraint on the angle. More...

const CadConstraint *	constraintDistance () const
	Constraint on the distance. More...

const CadConstraint *	constraintX () const
	Constraint on the X coordinate. More...

const CadConstraint *	constraintY () const
	Constraint on the Y coordinate. More...

bool	constructionMode () const
	construction mode is used to draw intermediate points. These points won't be given any further (i.e. to the map tools) More...

QgsPointXY	currentPoint (bool *exists=nullptr) const
	The last point. More...

void	disable ()
	Disable the widget. More...

void	enable ()
	Enables the tool (call this when an appropriate map tool is set and in the condition to make use of cad digitizing) Normally done automatically from QgsMapToolAdvancedDigitizing::activate() but may need to be fine tuned if the map tool depends on preconditions like a feature selection. More...

QAction *	enableAction ()
	return the action used to enable/disable the tools More...

void	hideEvent (QHideEvent *) override
	Disables the CAD tools when hiding the dock. More...

void	keyPressEvent (QKeyEvent *e) override

QgsPointXY	penultimatePoint (bool *exists=nullptr) const
	The penultimate point. More...

int	pointsCount () const
	The number of points in the CAD point helper list. More...

QgsPointXY	previousPoint (bool *exists=nullptr) const
	The previous point. More...

void	releaseLocks (bool releaseRepeatingLocks=true)
	unlock all constraints More...

void	setPoints (const QList< QgsPointXY > &points)
	Configures list of current CAD points. More...

QList< QgsPointXY >	snappedSegment () const
	Snapped to a segment. More...

bool	snappedToVertex () const
	Is it snapped to a vertex. More...

void	updateCadPaintItem ()
	Updates canvas item that displays constraints on the ma. More...

Public Member Functions inherited from QgsDockWidget
	QgsDockWidget (QWidget *parent=nullptr, Qt::WindowFlags flags=nullptr)
	Constructor for QgsDockWidget. More...

	QgsDockWidget (const QString &title, QWidget *parent=nullptr, Qt::WindowFlags flags=nullptr)
	Constructor for QgsDockWidget. More...

bool	isUserVisible () const
	Returns true if the dock is both opened and raised to the front (ie not hidden by any other tabs. More...

Additional Inherited Members
Public Slots inherited from QgsDockWidget
void	setUserVisible (bool visible)
	Sets the dock widget as visible to a user, ie both shown and raised to the front. More...

Protected Member Functions inherited from QgsDockWidget
void	closeEvent (QCloseEvent *) override

void	showEvent (QShowEvent *event) override

Detailed Description

The QgsAdvancedDigitizingDockWidget class is a dockable widget used to handle the CAD tools on top of a selection of map tools.

It handles both the UI and the constraints. Constraints are applied by implementing filters called from QgsMapToolAdvancedDigitizing.

Definition at line 42 of file qgsadvanceddigitizingdockwidget.h.

Member Enumeration Documentation

◆ AdditionalConstraint

enum QgsAdvancedDigitizingDockWidget::AdditionalConstraint

Additional constraints which can be enabled.

Enumerator
NoConstraint	No additional constraint.
Perpendicular	Perpendicular.
Parallel	Parallel.

Definition at line 65 of file qgsadvanceddigitizingdockwidget.h.

◆ CadCapacity

enum QgsAdvancedDigitizingDockWidget::CadCapacity

The CadCapacity enum defines the possible constraints to be set depending on the number of points in the CAD point list (the list of points currently digitized)

Enumerator
AbsoluteAngle	Azimuth.
RelativeAngle	Also for parallel and perpendicular.
RelativeCoordinates	This corresponds to distance and relative coordinates.

Definition at line 53 of file qgsadvanceddigitizingdockwidget.h.

Constructor & Destructor Documentation

◆ QgsAdvancedDigitizingDockWidget()

QgsAdvancedDigitizingDockWidget::QgsAdvancedDigitizingDockWidget	(	QgsMapCanvas *	canvas,
		QWidget *	parent = `nullptr`
	)

explicit

Create an advanced digitizing dock widget.

Parameters

canvas	The map canvas on which the widget operates
parent	The parent

Definition at line 38 of file qgsadvanceddigitizingdockwidget.cpp.

Member Function Documentation

◆ additionalConstraint()

AdditionalConstraint QgsAdvancedDigitizingDockWidget::additionalConstraint ( ) const

inline

Additional constraints are used to place perpendicular/parallel segments to snapped segments on the canvas.

Definition at line 245 of file qgsadvanceddigitizingdockwidget.h.

◆ addPoint()

void QgsAdvancedDigitizingDockWidget::addPoint ( const QgsPointXY & point )

Adds point to the CAD point list.

Since: QGIS 3.0

Definition at line 967 of file qgsadvanceddigitizingdockwidget.cpp.

◆ alignToSegment()

bool QgsAdvancedDigitizingDockWidget::alignToSegment	(	QgsMapMouseEvent *	e,
		QgsAdvancedDigitizingDockWidget::CadConstraint::LockMode	lockMode = `QgsAdvancedDigitizingDockWidget::CadConstraint::HardLock`
	)

align to segment for additional constraint.

If additional constraints are used, this will determine the angle to be locked depending on the snapped segment.

Since: QGIS 3.0

Definition at line 666 of file qgsadvanceddigitizingdockwidget.cpp.

◆ applyConstraints()

bool QgsAdvancedDigitizingDockWidget::applyConstraints ( QgsMapMouseEvent * e )

apply the CAD constraints.

The will modify the position of the map event in map coordinates by applying the CAD constraints.

Returns: false if no solution was found (invalid constraints)

Definition at line 518 of file qgsadvanceddigitizingdockwidget.cpp.

◆ cadEnabled()

bool QgsAdvancedDigitizingDockWidget::cadEnabled ( ) const

inline

determines if CAD tools are enabled or if map tools behaves "nomally"

Definition at line 239 of file qgsadvanceddigitizingdockwidget.h.

◆ canvasKeyPressEventFilter()

bool QgsAdvancedDigitizingDockWidget::canvasKeyPressEventFilter ( QKeyEvent * e )

Filter key events to e.g.

toggle construction mode or adapt constraints

Parameters

e	A mouse event (may be modified)

Returns: If the event is hidden (construction mode hides events from the maptool)

Definition at line 707 of file qgsadvanceddigitizingdockwidget.cpp.

◆ clear()

void QgsAdvancedDigitizingDockWidget::clear ( )

Clear any cached previous clicks and helper lines.

Definition at line 738 of file qgsadvanceddigitizingdockwidget.cpp.

◆ clearPoints()

void QgsAdvancedDigitizingDockWidget::clearPoints ( )

Removes all points from the CAD point list.

Since: QGIS 3.0

Definition at line 991 of file qgsadvanceddigitizingdockwidget.cpp.

◆ commonAngleConstraint()

bool QgsAdvancedDigitizingDockWidget::commonAngleConstraint ( ) const

inline

Constraint on a common angle.

Definition at line 255 of file qgsadvanceddigitizingdockwidget.h.

◆ constraintAngle()

const CadConstraint* QgsAdvancedDigitizingDockWidget::constraintAngle ( ) const

inline

Constraint on the angle.

Definition at line 247 of file qgsadvanceddigitizingdockwidget.h.

◆ constraintDistance()

const CadConstraint* QgsAdvancedDigitizingDockWidget::constraintDistance ( ) const

inline

Constraint on the distance.

Definition at line 249 of file qgsadvanceddigitizingdockwidget.h.

◆ constraintX()

const CadConstraint* QgsAdvancedDigitizingDockWidget::constraintX ( ) const

inline

Constraint on the X coordinate.

Definition at line 251 of file qgsadvanceddigitizingdockwidget.h.

◆ constraintY()

const CadConstraint* QgsAdvancedDigitizingDockWidget::constraintY ( ) const

inline

Constraint on the Y coordinate.

Definition at line 253 of file qgsadvanceddigitizingdockwidget.h.

◆ constructionMode()

bool QgsAdvancedDigitizingDockWidget::constructionMode ( ) const

inline

construction mode is used to draw intermediate points. These points won't be given any further (i.e. to the map tools)

Definition at line 242 of file qgsadvanceddigitizingdockwidget.h.

◆ currentPoint()

QgsPointXY QgsAdvancedDigitizingDockWidget::currentPoint ( bool * exists = nullptr ) const

The last point.

Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both "normal" points and intermediate points (construction mode).

Definition at line 1070 of file qgsadvanceddigitizingdockwidget.cpp.

◆ disable()

void QgsAdvancedDigitizingDockWidget::disable ( )

Disable the widget.

Normally done automatically from QgsMapToolAdvancedDigitizing::deactivate().

Definition at line 947 of file qgsadvanceddigitizingdockwidget.cpp.

◆ enable()

void QgsAdvancedDigitizingDockWidget::enable ( )

Enables the tool (call this when an appropriate map tool is set and in the condition to make use of cad digitizing) Normally done automatically from QgsMapToolAdvancedDigitizing::activate() but may need to be fine tuned if the map tool depends on preconditions like a feature selection.

Definition at line 920 of file qgsadvanceddigitizingdockwidget.cpp.

◆ enableAction()

QAction* QgsAdvancedDigitizingDockWidget::enableAction ( )

inline

return the action used to enable/disable the tools

Definition at line 315 of file qgsadvanceddigitizingdockwidget.h.

◆ hideEvent()

void QgsAdvancedDigitizingDockWidget::hideEvent ( QHideEvent * )

override

Disables the CAD tools when hiding the dock.

Definition at line 158 of file qgsadvanceddigitizingdockwidget.cpp.

◆ keyPressEvent()

void QgsAdvancedDigitizingDockWidget::keyPressEvent ( QKeyEvent * e )

override

Definition at line 744 of file qgsadvanceddigitizingdockwidget.cpp.

◆ penultimatePoint()

QgsPointXY QgsAdvancedDigitizingDockWidget::penultimatePoint ( bool * exists = nullptr ) const

The penultimate point.

Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both "normal" points and intermediate points (construction mode).

Definition at line 1090 of file qgsadvanceddigitizingdockwidget.cpp.

◆ pointChanged

void QgsAdvancedDigitizingDockWidget::pointChanged ( const QgsPointXY & point )

signal

Sometimes a constraint may change the current point out of a mouse event.

This happens normally when a constraint is toggled.

Parameters

point The last known digitizing point. Can be used to emulate a mouse event.

◆ pointsCount()

int QgsAdvancedDigitizingDockWidget::pointsCount ( ) const

inline

The number of points in the CAD point helper list.

Definition at line 302 of file qgsadvanceddigitizingdockwidget.h.

◆ popWarning

void QgsAdvancedDigitizingDockWidget::popWarning ( )

signal

Remove any previously emitted warnings (if any)

◆ previousPoint()

QgsPointXY QgsAdvancedDigitizingDockWidget::previousPoint ( bool * exists = nullptr ) const

The previous point.

Helper for the CAD point list. The CAD point list is the list of points currently digitized. It contains both "normal" points and intermediate points (construction mode).

Definition at line 1080 of file qgsadvanceddigitizingdockwidget.cpp.

◆ pushWarning

void QgsAdvancedDigitizingDockWidget::pushWarning ( const QString & message )

signal

Push a warning.

Parameters

message An informative message

◆ releaseLocks()

void QgsAdvancedDigitizingDockWidget::releaseLocks ( bool releaseRepeatingLocks = true )

unlock all constraints

Parameters

releaseRepeatingLocks set to false to preserve the lock for any constraints set to repeating lock mode

Since: QGIS 3.0

Definition at line 261 of file qgsadvanceddigitizingdockwidget.cpp.

◆ setPoints()

void QgsAdvancedDigitizingDockWidget::setPoints ( const QList< QgsPointXY > & points )

Configures list of current CAD points.

Some map tools may find it useful to override list of CAD points that is otherwise automatically populated when user clicks with left mouse button on map canvas.

Since: QGIS 3.0

Definition at line 773 of file qgsadvanceddigitizingdockwidget.cpp.

◆ snappedSegment()

QList<QgsPointXY> QgsAdvancedDigitizingDockWidget::snappedSegment ( ) const

inline

Snapped to a segment.

Definition at line 312 of file qgsadvanceddigitizingdockwidget.h.

◆ snappedToVertex()

bool QgsAdvancedDigitizingDockWidget::snappedToVertex ( ) const

inline

Is it snapped to a vertex.

Definition at line 307 of file qgsadvanceddigitizingdockwidget.h.

◆ updateCadPaintItem()

void QgsAdvancedDigitizingDockWidget::updateCadPaintItem ( )

Updates canvas item that displays constraints on the ma.

Since: QGIS 3.0

Definition at line 962 of file qgsadvanceddigitizingdockwidget.cpp.

The documentation for this class was generated from the following files:

/tmp/buildd/qgis-3.0.2+14stretch/src/gui/qgsadvanceddigitizingdockwidget.h
/tmp/buildd/qgis-3.0.2+14stretch/src/gui/qgsadvanceddigitizingdockwidget.cpp

Classes

Public Types

Signals

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ AdditionalConstraint

◆ CadCapacity

Constructor & Destructor Documentation

◆ QgsAdvancedDigitizingDockWidget()

Member Function Documentation

◆ additionalConstraint()

◆ addPoint()

◆ alignToSegment()

◆ applyConstraints()

◆ cadEnabled()

◆ canvasKeyPressEventFilter()

◆ clear()

◆ clearPoints()

◆ commonAngleConstraint()

◆ constraintAngle()

◆ constraintDistance()

◆ constraintX()

◆ constraintY()

◆ constructionMode()

◆ currentPoint()

◆ disable()

◆ enable()

◆ enableAction()

◆ hideEvent()

◆ keyPressEvent()

◆ penultimatePoint()

◆ pointChanged

◆ pointsCount()

◆ popWarning

◆ previousPoint()

◆ pushWarning

◆ releaseLocks()

◆ setPoints()

◆ snappedSegment()

◆ snappedToVertex()

◆ updateCadPaintItem()