GraphicsView Class Reference

The GraphicsView class. More...

#include <graphicsview.h>

Inherits QGraphicsView.

Collaboration diagram for GraphicsView:

Classes
struct	RulerGauge

Public Types
enum	CursorOption

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

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

Public Member Functions
	GraphicsView (const GraphicsView &other)=delete
	GraphicsView (QWidget *parent=nullptr, IF_GraphicsViewEventHandler *eventHandler=nullptr) noexcept
	~GraphicsView () noexcept
GraphicsScene *	getScene () const noexcept
QRectF	getVisibleSceneRect () const noexcept
bool	getUseOpenGl () const noexcept
const PositiveLength &	getGridInterval () const noexcept
Theme::GridStyle	getGridStyle () const noexcept
bool	isMouseButtonPressed (Qt::MouseButtons btn) const noexcept
qint64	getIdleTimeMs () const noexcept
void	setBackgroundColors (const QColor &fill, const QColor &grid) noexcept
void	setOverlayColors (const QColor &fill, const QColor &content) noexcept
void	setInfoBoxColors (const QColor &fill, const QColor &text) noexcept
void	setUseOpenGl (bool useOpenGl) noexcept
void	setGrayOut (bool grayOut) noexcept
void	setGridStyle (Theme::GridStyle style) noexcept
void	setGridInterval (const PositiveLength &interval) 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	setSceneCursor (const tl::optional< std::pair< Point, CursorOptions >> &cursor) noexcept
void	setRulerPositions (const tl::optional< std::pair< Point, Point >> &pos) noexcept
void	setInfoBoxText (const QString &text) noexcept
void	setOriginCrossVisible (bool visible) noexcept
void	setEventHandlerObject (IF_GraphicsViewEventHandler *eventHandler) noexcept
Point	mapGlobalPosToScenePos (const QPoint &globalPosPx, bool boundToView, bool mapToGrid) const noexcept
QPainterPath	calcPosWithTolerance (const Point &pos, qreal multiplier=1) const noexcept
void	handleMouseWheelEvent (QGraphicsSceneWheelEvent *event) noexcept
GraphicsView &	operator= (const GraphicsView &rhs)=delete

Private Slots
void	zoomAnimationValueChanged (const QVariant &value) noexcept

Private Member Functions
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
QScopedPointer< WaitingSpinnerWidget >	mWaitingSpinnerWidget
QScopedPointer< QLabel >	mInfoBoxLabel
IF_GraphicsViewEventHandler *	mEventHandlerObject
GraphicsScene *	mScene
QVariantAnimation *	mZoomAnimation
Theme::GridStyle	mGridStyle
PositiveLength	mGridInterval
QColor	mBackgroundColor
QColor	mGridColor
QColor	mOverlayFillColor
QColor	mOverlayContentColor
QRectF	mSceneRectMarker
bool	mOriginCrossVisible
bool	mUseOpenGl
bool	mGrayOut
tl::optional< std::pair< Point, CursorOptions > >	mSceneCursor
	If not nullopt, a cursor will be shown at the given position. More...
QVector< RulerGauge >	mRulerGauges
tl::optional< std::pair< Point, Point > >	mRulerPositions
volatile bool	mPanningActive
Qt::MouseButton	mPanningButton
Qt::MouseButtons	mPressedMouseButtons
QCursor	mCursorBeforePanning
qint64	mIdleTimeMs

Static Private Attributes
static constexpr qreal	sZoomStepFactor = 1.3

Detailed Description

The GraphicsView class.

Member Enumeration Documentation

CursorOption

enum CursorOption

strong

Enumerator
Cross
Circle

Constructor & Destructor Documentation

GraphicsView() [1/2]

GraphicsView ( const GraphicsView &  other )

delete

GraphicsView() [2/2]

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

explicitnoexcept

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~GraphicsView()

~GraphicsView ( )

noexcept

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

getGridInterval()

const PositiveLength& getGridInterval ( ) const

inlinenoexcept

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getGridStyle()

Theme::GridStyle getGridStyle ( ) const

inlinenoexcept

isMouseButtonPressed()

bool isMouseButtonPressed ( Qt::MouseButtons  btn ) const

inlinenoexcept

getIdleTimeMs()

qint64 getIdleTimeMs ( ) const

inlinenoexcept

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setBackgroundColors()

void setBackgroundColors ( const QColor &  fill, const QColor &  grid  )

noexcept

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setOverlayColors()

void setOverlayColors ( const QColor &  fill, const QColor &  content  )

noexcept

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setInfoBoxColors()

void setInfoBoxColors ( const QColor &  fill, const QColor &  text  )

noexcept

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setUseOpenGl()

void setUseOpenGl ( bool  useOpenGl )

noexcept

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setGrayOut()

void setGrayOut ( bool  grayOut )

noexcept

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setGridStyle()

void setGridStyle ( Theme::GridStyle  style )

noexcept

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setGridInterval()

void setGridInterval ( const PositiveLength &  interval )

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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setSceneCursor()

void setSceneCursor ( const tl::optional< std::pair< Point, CursorOptions >> &  cursor )

noexcept

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setRulerPositions()

void setRulerPositions ( const tl::optional< std::pair< Point, Point >> &  pos )

noexcept

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setInfoBoxText()

void setInfoBoxText ( const QString &  text )

noexcept

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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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calcPosWithTolerance()

QPainterPath calcPosWithTolerance ( const Point &  pos, qreal  multiplier = 1  ) const

noexcept

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handleMouseWheelEvent()

void handleMouseWheelEvent ( QGraphicsSceneWheelEvent *  event )

noexcept

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operator=()

GraphicsView& operator= ( const GraphicsView &  rhs )

delete

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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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showWaitingSpinner

void showWaitingSpinner ( )

slotnoexcept

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hideWaitingSpinner

void hideWaitingSpinner ( )

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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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

mWaitingSpinnerWidget

QScopedPointer<WaitingSpinnerWidget> mWaitingSpinnerWidget

private

mInfoBoxLabel

QScopedPointer<QLabel> mInfoBoxLabel

private

mEventHandlerObject

IF_GraphicsViewEventHandler* mEventHandlerObject

private

mScene

GraphicsScene* mScene

private

mZoomAnimation

QVariantAnimation* mZoomAnimation

private

mGridStyle

Theme::GridStyle mGridStyle

private

mGridInterval

PositiveLength mGridInterval

private

mBackgroundColor

QColor mBackgroundColor

private

mGridColor

QColor mGridColor

private

mOverlayFillColor

QColor mOverlayFillColor

private

mOverlayContentColor

QColor mOverlayContentColor

private

mSceneRectMarker

QRectF mSceneRectMarker

private

mOriginCrossVisible

bool mOriginCrossVisible

private

mUseOpenGl

bool mUseOpenGl

private

mGrayOut

bool mGrayOut

private

mSceneCursor

tl::optional<std::pair<Point, CursorOptions> > mSceneCursor

private

If not nullopt, a cursor will be shown at the given position.

mRulerGauges

QVector<RulerGauge> mRulerGauges

private

mRulerPositions

tl::optional<std::pair<Point, Point> > mRulerPositions

private

mPanningActive

volatile bool mPanningActive

private

mPanningButton

Qt::MouseButton mPanningButton

private

mPressedMouseButtons

Qt::MouseButtons mPressedMouseButtons

private

mCursorBeforePanning

QCursor mCursorBeforePanning

private

mIdleTimeMs

qint64 mIdleTimeMs

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/editor/widgets/graphicsview.h
• /__w/1/s/libs/librepcb/editor/widgets/graphicsview.cpp