GraphicsView Class Reference

The GraphicsView class. More...

#include <graphicsview.h>

Inherits QGraphicsView.

Collaboration diagram for GraphicsView:

Public Slots
void	zoomIn () noexcept
void	zoomOut () noexcept
void	zoomAll () noexcept
void	zoomToRect (const QRectF &rect) noexcept

Signals
void	cursorScenePositionChanged (const Point &pos)
	Cursor scene position changed signal. More...

Public Member Functions
	GraphicsView (QWidget *parent=nullptr, IF_GraphicsViewEventHandler *eventHandler=nullptr) noexcept
	~GraphicsView () noexcept
GraphicsScene *	getScene () const noexcept
QRectF	getVisibleSceneRect () const noexcept
bool	getUseOpenGl () const noexcept
const GridProperties &	getGridProperties () const noexcept
void	setUseOpenGl (bool useOpenGl) noexcept
void	setGridProperties (const GridProperties &properties) noexcept
void	setScene (GraphicsScene *scene) noexcept
void	setVisibleSceneRect (const QRectF &rect) noexcept
void	setSceneRectMarker (const QRectF &rect) noexcept
	Setup the marker for a specific scene rect. More...
void	setOriginCrossVisible (bool visible) noexcept
void	setEventHandlerObject (IF_GraphicsViewEventHandler *eventHandler) noexcept
Point	mapGlobalPosToScenePos (const QPoint &globalPosPx, bool boundToView, bool mapToGrid) const noexcept
void	handleMouseWheelEvent (QGraphicsSceneWheelEvent *event) noexcept

Private Slots
void	zoomAnimationValueChanged (const QVariant &value) noexcept

Private Member Functions
	GraphicsView (const GraphicsView &other)=delete
GraphicsView &	operator= (const GraphicsView &rhs)=delete
void	wheelEvent (QWheelEvent *event)
bool	eventFilter (QObject *obj, QEvent *event)
void	drawBackground (QPainter *painter, const QRectF &rect)
void	drawForeground (QPainter *painter, const QRectF &rect)

Private Attributes
IF_GraphicsViewEventHandler *	mEventHandlerObject
GraphicsScene *	mScene
QVariantAnimation *	mZoomAnimation
GridProperties *	mGridProperties
QRectF	mSceneRectMarker
bool	mOriginCrossVisible
bool	mUseOpenGl
volatile bool	mPanningActive
QCursor	mCursorBeforePanning

Static Private Attributes
static constexpr qreal	sZoomStepFactor = 1.3

Detailed Description

The GraphicsView class.

Constructor & Destructor Documentation

GraphicsView() [1/2]

GraphicsView ( QWidget *  parent = nullptr, IF_GraphicsViewEventHandler *  eventHandler = nullptr  )

explicitnoexcept

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~GraphicsView()

~GraphicsView ( )

noexcept

GraphicsView() [2/2]

GraphicsView ( const GraphicsView &  other )

privatedelete

Member Function Documentation

getScene()

GraphicsScene* getScene ( ) const

inlinenoexcept

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getVisibleSceneRect()

QRectF getVisibleSceneRect ( ) const

noexcept

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getUseOpenGl()

bool getUseOpenGl ( ) const

inlinenoexcept

getGridProperties()

const GridProperties& getGridProperties ( ) const

inlinenoexcept

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setUseOpenGl()

void setUseOpenGl ( bool  useOpenGl )

noexcept

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setGridProperties()

void setGridProperties ( const GridProperties &  properties )

noexcept

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setScene()

void setScene ( GraphicsScene *  scene )

noexcept

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setVisibleSceneRect()

void setVisibleSceneRect ( const QRectF &  rect )

noexcept

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setSceneRectMarker()

void setSceneRectMarker ( const QRectF &  rect )

noexcept

Setup the marker for a specific scene rect.

This is intended to mark a specific area in a scene, with a line starting from the top left of the view, so the user can easily locate the specified area, even if it is very small.

Parameters

rect	The rect to mark. Pass an empty rect to clear the marker.

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setOriginCrossVisible()

void setOriginCrossVisible ( bool  visible )

noexcept

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setEventHandlerObject()

void setEventHandlerObject ( IF_GraphicsViewEventHandler *  eventHandler )

noexcept

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mapGlobalPosToScenePos()

Point mapGlobalPosToScenePos ( const QPoint &  globalPosPx, bool  boundToView, bool  mapToGrid  ) const

noexcept

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handleMouseWheelEvent()

void handleMouseWheelEvent ( QGraphicsSceneWheelEvent *  event )

noexcept

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zoomIn

void zoomIn ( )

slotnoexcept

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zoomOut

void zoomOut ( )

slotnoexcept

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zoomAll

void zoomAll ( )

slotnoexcept

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zoomToRect

void zoomToRect ( const QRectF &  rect )

slotnoexcept

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cursorScenePositionChanged

void cursorScenePositionChanged ( const Point &  pos )

signal

Cursor scene position changed signal.

Parameters

pos	The new cursor position (not mapped to grid!)

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zoomAnimationValueChanged

void zoomAnimationValueChanged ( const QVariant &  value )

privateslotnoexcept

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operator=()

GraphicsView& operator= ( const GraphicsView &  rhs )

privatedelete

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wheelEvent()

void wheelEvent ( QWheelEvent *  event )

private

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eventFilter()

bool eventFilter ( QObject *  obj, QEvent *  event  )

private

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drawBackground()

void drawBackground ( QPainter *  painter, const QRectF &  rect  )

private

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drawForeground()

void drawForeground ( QPainter *  painter, const QRectF &  rect  )

private

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Member Data Documentation

mEventHandlerObject

IF_GraphicsViewEventHandler* mEventHandlerObject

private

mScene

GraphicsScene* mScene

private

mZoomAnimation

QVariantAnimation* mZoomAnimation

private

mGridProperties

GridProperties* mGridProperties

private

mSceneRectMarker

QRectF mSceneRectMarker

private

mOriginCrossVisible

bool mOriginCrossVisible

private

mUseOpenGl

bool mUseOpenGl

private

mPanningActive

volatile bool mPanningActive

private

mCursorBeforePanning

QCursor mCursorBeforePanning

private

sZoomStepFactor

constexpr qreal sZoomStepFactor = 1.3

staticprivate

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

• /__w/1/s/libs/librepcb/common/graphics/graphicsview.h
• /__w/1/s/libs/librepcb/common/graphics/graphicsview.cpp