Engauge Digitizer 2
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Public Member Functions | List of all members
GuidelineStateDeployedConstantYAbstract Class Reference

Compute geometry for deployed constant y Guideline. More...

#include <GuidelineStateDeployedConstantYAbstract.h>

Inheritance diagram for GuidelineStateDeployedConstantYAbstract:
Inheritance graph
Collaboration diagram for GuidelineStateDeployedConstantYAbstract:
Collaboration graph

Public Member Functions

 GuidelineStateDeployedConstantYAbstract (GuidelineStateContext &context)
 Single constructor.
 
virtual ~GuidelineStateDeployedConstantYAbstract ()
 
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 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 void updateWithLatestTransformation ()
 Update given Transformation in GuidelineStateContext.
 
- Public Member Functions inherited from GuidelineStateDeployedAbstract
 GuidelineStateDeployedAbstract (GuidelineStateContext &context)
 Single constructor.
 
virtual ~GuidelineStateDeployedAbstract ()
 
virtual void end ()
 Transition out of state.
 
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 handleTimeout ()
 Handle timeout from Appearing state.
 
- Public Member Functions inherited from GuidelineStateAbstractBase
 GuidelineStateAbstractBase (GuidelineStateContext &context)
 Single constructor.
 
virtual ~GuidelineStateAbstractBase ()
 
virtual void begin ()=0
 Transition into state.
 
virtual bool doPaint () const =0
 Allow/skip painting of the owner Guideline.
 
virtual void handleActiveChange (bool active)=0
 DigitizeState change so active status may (or may not) be toggled.
 
virtual void handleGuidelineMode (bool visibility, bool locked)=0
 User toggled Guideline visibility and/or locked mode.
 
virtual void handleHoverEnterEvent ()=0
 If transparent then make visible when hover starts.
 
virtual void handleHoverLeaveEvent ()=0
 If previously transparent before hover enter then make transparent again.
 
virtual void handleMousePress (const QPointF &posScene)=0
 At the start of dragging, convert the Guideline into an invisible handle and visible slaved deployed Guideline.
 
virtual QString stateName () const =0
 Name of state as a string for debugging only.
 

Additional Inherited Members

- Protected Member Functions inherited from GuidelineStateDeployedAbstract
void beginCommon (GuidelineFormat::HoverOption hoverOption, bool locked)
 Initialization common to all states.
 
- 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

Compute geometry for deployed constant y Guideline.

Definition at line 13 of file GuidelineStateDeployedConstantYAbstract.h.

Constructor & Destructor Documentation

◆ GuidelineStateDeployedConstantYAbstract()

GuidelineStateDeployedConstantYAbstract::GuidelineStateDeployedConstantYAbstract ( GuidelineStateContext & context)

Single constructor.

Definition at line 15 of file GuidelineStateDeployedConstantYAbstract.cpp.

15 :
17{
18}
GuidelineStateContext & context() const
Context in charge of the state classes.
GuidelineStateDeployedAbstract(GuidelineStateContext &context)
Single constructor.

◆ ~GuidelineStateDeployedConstantYAbstract()

GuidelineStateDeployedConstantYAbstract::~GuidelineStateDeployedConstantYAbstract ( )
virtual

Definition at line 20 of file GuidelineStateDeployedConstantYAbstract.cpp.

21{
22}

Member Function Documentation

◆ convertGraphCoordinateToScreenPoint()

QPointF GuidelineStateDeployedConstantYAbstract::convertGraphCoordinateToScreenPoint ( double valueGraph) const
virtual

Convert single graph coordinate into screen point pair.

Implements GuidelineStateAbstractBase.

Definition at line 24 of file GuidelineStateDeployedConstantYAbstract.cpp.

25{
26 const double ARBITRARY_X = 1.0; // Value that is legal in all cases, including log scaling
27 QPointF posScreen;
30 posScreen);
31
32 LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineStateDeployedConstantYAbstract::convertGraphCoordinateToScreenPoint"
33 << " pos=(" << posScreen.x() << ", " << posScreen.y() << ")";
34
35 return posScreen;
36}
const int INNER_RADIUS_MIN
log4cpp::Category * mainCat
Definition Logger.cpp:14
Transformation transformation() const
Return copy of transformation owned by MainWindow.
void transformRawGraphToScreen(const QPointF &pointRaw, QPointF &pointScreen) const
Transform from raw graph coordinates to linear cartesian graph coordinates, then to screen coordinate...
#define LOG4CPP_DEBUG_S(logger)
Definition convenience.h:20

◆ convertScreenPointToGraphCoordinate()

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

Convert screen point pair into single graph coordinate.

Implements GuidelineStateAbstractBase.

Definition at line 38 of file GuidelineStateDeployedConstantYAbstract.cpp.

39{
40 QPointF posGraph;
42 posGraph);
43
44 LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineStateDeployedConstantYAbstract::convertScreenPointToGraphCoordinate"
45 << " pos=(" << posGraph.x() << ", " << posGraph.y() << ")";
46
47 return posGraph.y();
48}
void transformScreenToRawGraph(const QPointF &coordScreen, QPointF &coordGraph) const
Transform from cartesian pixel screen coordinates to cartesian/polar graph coordinates.

◆ pointToEllipse()

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

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

Implements GuidelineStateAbstractBase.

Definition at line 50 of file GuidelineStateDeployedConstantYAbstract.cpp.

51{
52 // pointToLine applies in this state
53 return EllipseParameters();
54}
Parameters that define an ellipse about the specified center, at the specified angle from alignment w...

◆ pointToLine()

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

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

Implements GuidelineStateAbstractBase.

Definition at line 56 of file GuidelineStateDeployedConstantYAbstract.cpp.

57{
59
60 return projector.fromPosScreen (context().transformation(),
61 sceneRect (),
62 posScreen);
63}
Project a point along the horizontal direction in graph coordinates to produce a line segment along t...
QLineF fromPosScreen(const Transformation &transformation, const QRectF &sceneRect, const QPointF &posScreen)
Return line through point in screen coordinates.
QRectF sceneRect() const
Scene rectangle in screen coordinates (=pixels)

◆ updateWithLatestTransformation()

void GuidelineStateDeployedConstantYAbstract::updateWithLatestTransformation ( )
virtual

Update given Transformation in GuidelineStateContext.

Implements GuidelineStateAbstractBase.

Definition at line 65 of file GuidelineStateDeployedConstantYAbstract.cpp.

66{
67 LOG4CPP_DEBUG_S ((*mainCat)) << "GuidelineStateDeployedConstantYAbstract::updateWithLatestTransformation";
68
69 if (!context().transformation().transformIsDefined()) {
70 // Discard this Guideline immediately if the transformation transitions to undefined
72 } else {
73
75
76 GuidelineLine *line = dynamic_cast<GuidelineLine*> (&context().guideline());
77 line->setLine (projector.fromCoordinateY (context().transformation(),
78 sceneRect (),
79 context().posCursorGraph ().y()));
80 }
81}
@ GUIDELINE_STATE_DISCARDED
Line version of GuidelineAbstract.
GuidelineAbstract & guideline()
Guideline that owns this context class.
void requestStateTransition(GuidelineState guidelineState)
Request a state transition.

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