Engauge Digitizer  2
Public Member Functions | Protected Member Functions | List of all members
DigitizeStateAbstractBase Class Referenceabstract

Base class for all digitizing states. This serves as an interface to DigitizeStateContext. More...

#include <DigitizeStateAbstractBase.h>

Inheritance diagram for DigitizeStateAbstractBase:
DigitizeStateAxis DigitizeStateColorPicker DigitizeStateCurve DigitizeStateEmpty DigitizeStatePointMatch DigitizeStateScale DigitizeStateSegment DigitizeStateSelect

Public Member Functions

 DigitizeStateAbstractBase (DigitizeStateContext &context)
 Single constructor.
 
virtual QString activeCurve () const =0
 Name of the active Curve. This can include AXIS_CURVE_NAME.
 
virtual void begin (CmdMediator *cmdMediator, DigitizeState previousState)=0
 Method that is called at the exact moment a state is entered. More...
 
virtual bool canPaste (const Transformation &transformation, const QSize &viewSize) const =0
 Return true if there is good data in the clipboard for pasting, and that is compatible with the current state.
 
DigitizeStateContextcontext ()
 Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses, without const.
 
const DigitizeStateContextcontext () const
 Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses, without const.
 
virtual void end ()=0
 Method that is called at the exact moment a state is exited. Typically called just before begin for the next state.
 
virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator, const QString &pointIdentifier)=0
 Handle a right click, on an axis point, that was intercepted earlier.
 
virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator, const QStringList &pointIdentifiers)=0
 Handle a right click, on a graph point, that was intercepted earlier.
 
virtual void handleCurveChange (CmdMediator *cmdMediator)=0
 Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Segments.
 
virtual void handleKeyPress (CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem)=0
 Handle a key press that was intercepted earlier.
 
virtual void handleMouseMove (CmdMediator *cmdMediator, QPointF posScreen)=0
 Handle a mouse move. This is part of an experiment to see if augmenting the cursor in Point Match mode is worthwhile.
 
virtual void handleMousePress (CmdMediator *cmdMediator, QPointF pos)=0
 Handle a mouse press that was intercepted earlier.
 
virtual void handleMouseRelease (CmdMediator *cmdMediator, QPointF pos)=0
 Handle a mouse release that was intercepted earlier.
 
void setCursor (CmdMediator *cmdMediator)
 Update the cursor according to the current state.
 
virtual QString state () const =0
 State name for debugging.
 
virtual void updateAfterPointAddition ()=0
 Update graphics attributes after possible new points. This is useful for highlight opacity.
 
virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &modelDigitizeCurve)=0
 Update the digitize curve settings.
 
virtual void updateModelSegments (const DocumentModelSegments &modelSegments)=0
 Update the segments given the new settings.
 

Protected Member Functions

bool canPasteProtected (const Transformation &transformation, const QSize &viewSize) const
 Protected version of canPaste method. Some, but not all, leaf classes use this method.
 
virtual QCursor cursor (CmdMediator *cmdMediator) const =0
 Returns the state-specific cursor shape.
 

Detailed Description

Base class for all digitizing states. This serves as an interface to DigitizeStateContext.

Definition at line 37 of file DigitizeStateAbstractBase.h.

Member Function Documentation

◆ begin()

virtual void DigitizeStateAbstractBase::begin ( CmdMediator cmdMediator,
DigitizeState  previousState 
)
pure virtual

Method that is called at the exact moment a state is entered.

Typically called just after end for the previous state. The previousState value is used by DigitizeStateColorPicker to return to the previous state

Implemented in DigitizeStateScale, DigitizeStateColorPicker, DigitizeStatePointMatch, DigitizeStateSegment, DigitizeStateSelect, DigitizeStateAxis, DigitizeStateCurve, and DigitizeStateEmpty.


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