Engauge Digitizer 2
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GuidelineStateDiscarded Class Reference

Implements guideline behavior for GUIDELINE_STATE_DISCARDED. More...

#include <GuidelineStateDiscarded.h>

Inheritance diagram for GuidelineStateDiscarded:
Inheritance graph
Collaboration diagram for GuidelineStateDiscarded:
Collaboration graph

Public Member Functions

 GuidelineStateDiscarded (GuidelineStateContext &context)
 Single constructor.
virtual ~GuidelineStateDiscarded ()
virtual void begin ()
 Transition into state.
virtual QPointF convertGraphCoordinateToScreenPoint (double valueGraph) const
 Convert single graph coordinate into screen point pair.
virtual double convertScreenPointToGraphCoordinate (const QPointF &posScreen) const
 Convert screen point pair into single graph coordinate.
virtual bool doPaint () const
 Allow/skip painting of the owner Guideline.
virtual void end ()
 Transition out of state.
virtual void handleActiveChange (bool active)
 DigitizeState change so active status may (or may not) be toggled.
virtual void handleGuidelineMode (bool visible, bool locked)
 User toggled Guideline visibility and/or locked mode.
virtual void handleHoverEnterEvent ()
 If transparent then make visible when hover starts.
virtual void handleHoverLeaveEvent ()
 If previously transparent before hover enter then make transparent again.
virtual void handleMousePress (const QPointF &posScene)
 At the start of dragging, convert the Guideline into an invisible handle and visible slaved deployed Guideline.
virtual void handleMouseRelease (const QPointF &posScene)
 At the end of dragging, clone the Guideline that owns the state machine where these states live.
virtual void handleState ()
virtual void handleTimeout ()
 Handle timeout from Appearing state.
virtual EllipseParameters pointToEllipse (const QPointF &posScreen) const
 Return ellipse representing constant range, that passes through the specified point.
virtual QLineF pointToLine (const QPointF &posScreen) const
 Return line parallel to an axis line, that passes through the specified point.
virtual QString stateName () const
 Name of state as a string for debugging only.
virtual void updateWithLatestTransformation ()
 Update given Transformation in GuidelineStateContext.
Public Member Functions inherited from GuidelineStateAbstractBase
 GuidelineStateAbstractBase (GuidelineStateContext &context)
 Single constructor.
virtual ~GuidelineStateAbstractBase ()

Additional Inherited Members

Protected Member Functions inherited from GuidelineStateAbstractBase
GuidelineStateContextcontext () const
 Context in charge of the state classes.
void handleMousePressCommon (const QPointF &posAbsolute, GuidelineState stateHandle, GuidelineState stateDeployed)
 Common mouse press handling.
QRectF sceneRect () const
 Scene rectangle in screen coordinates (=pixels)

Detailed Description

Implements guideline behavior for GUIDELINE_STATE_DISCARDED.

Definition at line 13 of file GuidelineStateDiscarded.h.

Constructor & Destructor Documentation

◆ GuidelineStateDiscarded()

GuidelineStateDiscarded::GuidelineStateDiscarded ( GuidelineStateContext & context)

Single constructor.

Definition at line 16 of file GuidelineStateDiscarded.cpp.

16 :
18{
19}
GuidelineStateContext & context() const
Context in charge of the state classes.
GuidelineStateAbstractBase(GuidelineStateContext &context)
Single constructor.

◆ ~GuidelineStateDiscarded()

GuidelineStateDiscarded::~GuidelineStateDiscarded ( )
virtual

Definition at line 21 of file GuidelineStateDiscarded.cpp.

22{
23}

Member Function Documentation

◆ begin()

void GuidelineStateDiscarded::begin ( )
virtual

Transition into state.

Implements GuidelineStateAbstractBase.

Definition at line 25 of file GuidelineStateDiscarded.cpp.

26{
27 LOG4CPP_INFO_S ((*mainCat)) << "GuidelineStateDiscarded::begin"
28 << " identifier=" << context().guideline().identifier().toLatin1().data();
29
33 context().guideline().setGraphicsItemPen (QColor (Qt::transparent),
34 context ().modelGuideline ().lineWidthInactive ());
35}
log4cpp::Category * mainCat
Definition Logger.cpp:14
const int Z_VALUE_GUIDELINE_DISCARDED
Definition ZValues.cpp:13
virtual QString identifier() const =0
Unique identifier from QGraphicsItem.
virtual void setGraphicsItemVisible(bool visible)=0
Wrapper for QGraphicsItem::setVisible.
virtual void setGraphicsItemAcceptHoverEvents(bool accept)=0
Wrapper for QGraphicsItem::setAcceptHoverEvents.
virtual void setGraphicsItemZValue(double z)=0
Wrapper for QGraphicsItem::setZValue.
virtual void setGraphicsItemPen(const QColor &color, double lineWidth)=0
Wrapper for QGraphicsItem::setPen.
GuidelineAbstract & guideline()
Guideline that owns this context class.
#define LOG4CPP_INFO_S(logger)
Definition convenience.h:18

◆ convertGraphCoordinateToScreenPoint()

QPointF GuidelineStateDiscarded::convertGraphCoordinateToScreenPoint ( double valueGraph) const
virtual

Convert single graph coordinate into screen point pair.

Implements GuidelineStateAbstractBase.

Definition at line 37 of file GuidelineStateDiscarded.cpp.

38{
39 LOG4CPP_ERROR_S ((*mainCat)) << "GuidelineStateDiscarded::convertGraphCoordinateToScreenPoint "
40 << "should not be called";
41
42 ENGAUGE_ASSERT (false);
43
44 return QPointF (0, 0); // No-harm value
45}
#define ENGAUGE_ASSERT(cond)
Drop in replacement for Q_ASSERT.
#define LOG4CPP_ERROR_S(logger)
Definition convenience.h:12

◆ convertScreenPointToGraphCoordinate()

double GuidelineStateDiscarded::convertScreenPointToGraphCoordinate ( const QPointF & posScreen) const
virtual

Convert screen point pair into single graph coordinate.

Implements GuidelineStateAbstractBase.

Definition at line 47 of file GuidelineStateDiscarded.cpp.

48{
49 LOG4CPP_ERROR_S ((*mainCat)) << "GuidelineStateDiscarded::convertScreenPointToGraphCoordinate";
50
51 ENGAUGE_ASSERT (false);
52
53 return 0.1; // No-harm value even if using log scale
54}

◆ doPaint()

bool GuidelineStateDiscarded::doPaint ( ) const
virtual

Allow/skip painting of the owner Guideline.

This prevents display of selection markings on otherwise-invisible handle Guideline

Implements GuidelineStateAbstractBase.

Definition at line 56 of file GuidelineStateDiscarded.cpp.

57{
58 return false;
59}

◆ end()

void GuidelineStateDiscarded::end ( )
virtual

Transition out of state.

Implements GuidelineStateAbstractBase.

Definition at line 61 of file GuidelineStateDiscarded.cpp.

62{
63 LOG4CPP_INFO_S ((*mainCat)) << "GuidelineStateDiscarded::end";
64}

◆ handleActiveChange()

void GuidelineStateDiscarded::handleActiveChange ( bool active)
virtual

DigitizeState change so active status may (or may not) be toggled.

Implements GuidelineStateAbstractBase.

Definition at line 66 of file GuidelineStateDiscarded.cpp.

67{
68}

◆ handleGuidelineMode()

void GuidelineStateDiscarded::handleGuidelineMode ( bool visibility,
bool locked )
virtual

User toggled Guideline visibility and/or locked mode.

Implements GuidelineStateAbstractBase.

Definition at line 70 of file GuidelineStateDiscarded.cpp.

72{
73}

◆ handleHoverEnterEvent()

void GuidelineStateDiscarded::handleHoverEnterEvent ( )
virtual

If transparent then make visible when hover starts.

Implements GuidelineStateAbstractBase.

Definition at line 75 of file GuidelineStateDiscarded.cpp.

76{
77 LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineStateHandle::handleHoverEnterEvent";
78
79 // Noop. Never called since hover only works when visible
80}
#define LOG4CPP_DEBUG_S(logger)
Definition convenience.h:20

◆ handleHoverLeaveEvent()

void GuidelineStateDiscarded::handleHoverLeaveEvent ( )
virtual

If previously transparent before hover enter then make transparent again.

Implements GuidelineStateAbstractBase.

Definition at line 82 of file GuidelineStateDiscarded.cpp.

83{
84 LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineStateHandle::handleHoverEnterEvent";
85
86 // Noop. Never called since hover only works when visible
87}

◆ handleMousePress()

void GuidelineStateDiscarded::handleMousePress ( const QPointF & posScene)
virtual

At the start of dragging, convert the Guideline into an invisible handle and visible slaved deployed Guideline.

Implements GuidelineStateAbstractBase.

Definition at line 89 of file GuidelineStateDiscarded.cpp.

90{
91 // Noop
92}

◆ handleMouseRelease()

void GuidelineStateDiscarded::handleMouseRelease ( const QPointF & posScene)
virtual

At the end of dragging, clone the Guideline that owns the state machine where these states live.

Implements GuidelineStateAbstractBase.

Definition at line 94 of file GuidelineStateDiscarded.cpp.

95{
96 // Noop
97}

◆ handleState()

void GuidelineStateDiscarded::handleState ( )
virtual

Definition at line 99 of file GuidelineStateDiscarded.cpp.

100{
101 // Noop
102}

◆ handleTimeout()

void GuidelineStateDiscarded::handleTimeout ( )
virtual

Handle timeout from Appearing state.

Implements GuidelineStateAbstractBase.

Definition at line 104 of file GuidelineStateDiscarded.cpp.

105{
106 // Noop
107}

◆ pointToEllipse()

EllipseParameters GuidelineStateDiscarded::pointToEllipse ( const QPointF & posScreen) const
virtual

Return ellipse representing constant range, that passes through the specified point.

Implements GuidelineStateAbstractBase.

Definition at line 109 of file GuidelineStateDiscarded.cpp.

110{
111 return EllipseParameters();
112}

◆ pointToLine()

QLineF GuidelineStateDiscarded::pointToLine ( const QPointF & posScreen) const
virtual

Return line parallel to an axis line, that passes through the specified point.

Implements GuidelineStateAbstractBase.

Definition at line 114 of file GuidelineStateDiscarded.cpp.

115{
116 return QLineF (0, 0, 0, 0);
117}

◆ stateName()

QString GuidelineStateDiscarded::stateName ( ) const
virtual

Name of state as a string for debugging only.

Implements GuidelineStateAbstractBase.

Definition at line 119 of file GuidelineStateDiscarded.cpp.

120{
122}
QString guidelineStateAsString(GuidelineState state)
@ GUIDELINE_STATE_DISCARDED

◆ updateWithLatestTransformation()

void GuidelineStateDiscarded::updateWithLatestTransformation ( )
virtual

Update given Transformation in GuidelineStateContext.

Implements GuidelineStateAbstractBase.

Definition at line 124 of file GuidelineStateDiscarded.cpp.

125{
126 // Noop
127}

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