Engauge Digitizer 2
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DigitizeStateAxis Class Reference

Digitizing state for digitizing one axis point at a time. More...

#include <DigitizeStateAxis.h>

Inheritance diagram for DigitizeStateAxis:
Inheritance graph
Collaboration diagram for DigitizeStateAxis:
Collaboration graph

Public Member Functions

 DigitizeStateAxis (DigitizeStateContext &context)
 Single constructor.
virtual ~DigitizeStateAxis ()
virtual QString activeCurve () const
 Name of the active Curve. This can include AXIS_CURVE_NAME.
virtual void begin (CmdMediator *cmdMediator, DigitizeState previousState)
 Method that is called at the exact moment a state is entered.
virtual bool canPaste (const Transformation &transformation, const QSize &viewSize) const
 Return true if there is good data in the clipboard for pasting, and that is compatible with the current state.
virtual QCursor cursor (CmdMediator *cmdMediator) const
 Returns the state-specific cursor shape.
virtual void end ()
 Method that is called at the exact moment a state is exited. Typically called just before begin for the next state.
virtual bool guidelinesAreSelectable () const
 Enable/disable guidelines according to state.
virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator, const QString &pointIdentifier)
 Handle a right click, on an axis point, that was intercepted earlier.
virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator, const QStringList &pointIdentifiers)
 Handle a right click, on a graph point, that was intercepted earlier.
virtual void handleCurveChange (CmdMediator *cmdMediator)
 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)
 Handle a key press that was intercepted earlier.
virtual void handleMouseMove (CmdMediator *cmdMediator, QPointF posScreen)
 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 posScreen)
 Handle a mouse press that was intercepted earlier.
virtual void handleMouseRelease (CmdMediator *cmdMediator, QPointF posScreen)
 Handle a mouse release that was intercepted earlier.
virtual QString state () const
 State name for debugging.
virtual void updateAfterPointAddition ()
 Update graphics attributes after possible new points. This is useful for highlight opacity.
virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &modelDigitizeCurve)
 Update the digitize curve settings.
virtual void updateModelSegments (const DocumentModelSegments &modelSegments)
 Update the segments given the new settings.
Public Member Functions inherited from DigitizeStateAbstractBase
 DigitizeStateAbstractBase (DigitizeStateContext &context)
 Single constructor.
virtual ~DigitizeStateAbstractBase ()
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.
void setCursor (CmdMediator *cmdMediator)
 Update the cursor according to the current state.

Additional Inherited Members

Protected Member Functions inherited from DigitizeStateAbstractBase
bool canPasteProtected (const Transformation &transformation, const QSize &viewSize) const
 Protected version of canPaste method. Some, but not all, leaf classes use this method.

Detailed Description

Digitizing state for digitizing one axis point at a time.

Once three axis points are defined, those points define an affine transformation from pixel screen coordinates to graph coordinates.

Definition at line 14 of file DigitizeStateAxis.h.

Constructor & Destructor Documentation

◆ DigitizeStateAxis()

DigitizeStateAxis::DigitizeStateAxis ( DigitizeStateContext & context)

Single constructor.

Definition at line 24 of file DigitizeStateAxis.cpp.

24 :
26{
27}
DigitizeStateAbstractBase(DigitizeStateContext &context)
Single constructor.
DigitizeStateContext & context()
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses,...

◆ ~DigitizeStateAxis()

DigitizeStateAxis::~DigitizeStateAxis ( )
virtual

Definition at line 29 of file DigitizeStateAxis.cpp.

30{
31}

Member Function Documentation

◆ activeCurve()

QString DigitizeStateAxis::activeCurve ( ) const
virtual

Name of the active Curve. This can include AXIS_CURVE_NAME.

Implements DigitizeStateAbstractBase.

Definition at line 33 of file DigitizeStateAxis.cpp.

34{
35 return AXIS_CURVE_NAME;
36}
const QString AXIS_CURVE_NAME

◆ begin()

void DigitizeStateAxis::begin ( CmdMediator * cmdMediator,
DigitizeState previousState )
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

Implements DigitizeStateAbstractBase.

Definition at line 38 of file DigitizeStateAxis.cpp.

40{
41 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::begin";
42
43 setCursor(cmdMediator);
44 context().setDragMode(QGraphicsView::NoDrag);
47}
log4cpp::Category * mainCat
Definition Logger.cpp:14
void setCursor(CmdMediator *cmdMediator)
Update the cursor according to the current state.
virtual QString activeCurve() const
Name of the active Curve. This can include AXIS_CURVE_NAME.
void setDragMode(QGraphicsView::DragMode dragMode)
Set QGraphicsView drag mode (in m_view). Called from DigitizeStateAbstractBase subclasses.
MainWindow & mainWindow()
Reference to the MainWindow, without const.
void updateViewsOfSettings(const QString &activeCurve)
Update curve-specific view of settings. Private version gets active curve name from DigitizeStateCont...
void handleGuidelinesActiveChange(bool active)
Handle Guidelines active status toggle.
#define LOG4CPP_INFO_S(logger)
Definition convenience.h:18

◆ canPaste()

bool DigitizeStateAxis::canPaste ( const Transformation & transformation,
const QSize & viewSize ) const
virtual

Return true if there is good data in the clipboard for pasting, and that is compatible with the current state.

Implements DigitizeStateAbstractBase.

Definition at line 49 of file DigitizeStateAxis.cpp.

51{
52 return false;
53}

◆ cursor()

QCursor DigitizeStateAxis::cursor ( CmdMediator * cmdMediator) const
virtual

Returns the state-specific cursor shape.

Implements DigitizeStateAbstractBase.

Definition at line 74 of file DigitizeStateAxis.cpp.

75{
76 LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateAxis::cursor";
77
78 CursorFactory cursorFactory;
79 QCursor cursor = cursorFactory.generate (cmdMediator->document().modelDigitizeCurve());
80
81 return cursor;
82}
Document & document()
Provide the Document to commands, primarily for undo/redo processing.
QCursor generate(const DocumentModelDigitizeCurve &modelDigitizeCurve) const
Factory method to generate standard or custom cursor.
virtual QCursor cursor(CmdMediator *cmdMediator) const
Returns the state-specific cursor shape.
DocumentModelDigitizeCurve modelDigitizeCurve() const
Get method for DocumentModelDigitizeCurve.
Definition Document.cpp:712
#define LOG4CPP_DEBUG_S(logger)
Definition convenience.h:20

◆ end()

void DigitizeStateAxis::end ( )
virtual

Method that is called at the exact moment a state is exited. Typically called just before begin for the next state.

Implements DigitizeStateAbstractBase.

Definition at line 84 of file DigitizeStateAxis.cpp.

85{
86 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::end";
87}

◆ guidelinesAreSelectable()

bool DigitizeStateAxis::guidelinesAreSelectable ( ) const
virtual

Enable/disable guidelines according to state.

Implements DigitizeStateAbstractBase.

Definition at line 89 of file DigitizeStateAxis.cpp.

90{
91 return false;
92}

◆ handleContextMenuEventAxis()

void DigitizeStateAxis::handleContextMenuEventAxis ( CmdMediator * cmdMediator,
const QString & pointIdentifier )
virtual

Handle a right click, on an axis point, that was intercepted earlier.

Implements DigitizeStateAbstractBase.

Definition at line 94 of file DigitizeStateAxis.cpp.

96{
97 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleContextMenuEventAxis "
98 << " point=" << pointIdentifier.toLatin1 ().data ();
99}

◆ handleContextMenuEventGraph()

void DigitizeStateAxis::handleContextMenuEventGraph ( CmdMediator * cmdMediator,
const QStringList & pointIdentifiers )
virtual

Handle a right click, on a graph point, that was intercepted earlier.

Implements DigitizeStateAbstractBase.

Definition at line 101 of file DigitizeStateAxis.cpp.

103{
104 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleContextMenuEventGraph "
105 << "points=" << pointIdentifiers.join(",").toLatin1 ().data ();
106}

◆ handleCurveChange()

void DigitizeStateAxis::handleCurveChange ( CmdMediator * cmdMediator)
virtual

Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Segments.

Implements DigitizeStateAbstractBase.

Definition at line 108 of file DigitizeStateAxis.cpp.

109{
110 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleCurveChange";
111}

◆ handleKeyPress()

void DigitizeStateAxis::handleKeyPress ( CmdMediator * cmdMediator,
Qt::Key key,
bool atLeastOneSelectedItem )
virtual

Handle a key press that was intercepted earlier.

Implements DigitizeStateAbstractBase.

Definition at line 113 of file DigitizeStateAxis.cpp.

116{
117 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleKeyPress"
118 << " key=" << QKeySequence (key).toString ().toLatin1 ().data ();
119}

◆ handleMouseMove()

void DigitizeStateAxis::handleMouseMove ( CmdMediator * cmdMediator,
QPointF posScreen )
virtual

Handle a mouse move. This is part of an experiment to see if augmenting the cursor in Point Match mode is worthwhile.

Implements DigitizeStateAbstractBase.

Definition at line 121 of file DigitizeStateAxis.cpp.

123{
124// LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateAxis::handleMouseMove";
125}

◆ handleMousePress()

void DigitizeStateAxis::handleMousePress ( CmdMediator * cmdMediator,
QPointF pos )
virtual

Handle a mouse press that was intercepted earlier.

Implements DigitizeStateAbstractBase.

Definition at line 127 of file DigitizeStateAxis.cpp.

129{
130 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleMousePress";
131}

◆ handleMouseRelease()

void DigitizeStateAxis::handleMouseRelease ( CmdMediator * cmdMediator,
QPointF pos )
virtual

Handle a mouse release that was intercepted earlier.

Implements DigitizeStateAbstractBase.

Definition at line 133 of file DigitizeStateAxis.cpp.

135{
136 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleMouseRelease";
137
138 if (context().mainWindow().transformIsDefined()) {
139
140 QMessageBox::warning (nullptr,
141 QObject::tr ("Engauge Digitizer"),
142 QObject::tr ("Three axis points have been defined, and no more are needed or allowed."));
143
144 } else {
145
146 createTemporaryPoint (cmdMediator,
147 posScreen);
148
149 // Ask user for coordinates
150 DlgEditPointAxis *dlg = new DlgEditPointAxis (context ().mainWindow (),
151 cmdMediator->document().modelCoords(),
152 cmdMediator->document().modelGeneral(),
153 context().mainWindow().modelMainWindow(),
154 context().mainWindow().transformation(),
155 cmdMediator->document().documentAxesPointsRequired());
156 int rtn = dlg->exec ();
157
158 bool isXOnly;
159 QPointF posGraph = dlg->posGraph (isXOnly);
160 delete dlg;
161
162 // Remove temporary point
164
165 if (rtn == QDialog::Accepted) {
166
167 // User wants to add this axis point, but let's perform sanity checks first
168
169 bool isError;
170 QString errorMessage;
171 int nextOrdinal = cmdMediator->document().nextOrdinalForCurve(AXIS_CURVE_NAME);
172
173 cmdMediator->document().checkAddPointAxis(posScreen,
174 posGraph,
175 isError,
176 errorMessage,
177 isXOnly);
178
179 if (isError) {
180
181 QMessageBox::warning (nullptr,
182 QObject::tr ("Engauge Digitizer"),
183 errorMessage);
184
185 } else {
186
187 // Create command to add point
188 Document &document = cmdMediator->document ();
189 QUndoCommand *cmd = new CmdAddPointAxis (context ().mainWindow(),
190 document,
191 posScreen,
192 posGraph,
193 nextOrdinal,
194 isXOnly);
195 context().appendNewCmd(cmdMediator,
196 cmd);
197 }
198 }
199 }
200}
void appendNewCmd(CmdMediator *cmdMediator, QUndoCommand *cmd)
Append just-created QUndoCommand to command stack. This is called from DigitizeStateAbstractBase subc...
QPointF posGraph(bool &isXOnly) const
Return the graph coordinates position specified by the user. Only applies if dialog was accepted.
DocumentModelGeneral modelGeneral() const
Get method for DocumentModelGeneral.
Definition Document.cpp:726
int nextOrdinalForCurve(const QString &curveName) const
Default next ordinal value for specified curve.
Definition Document.cpp:775
DocumentModelCoords modelCoords() const
Get method for DocumentModelCoords.
Definition Document.cpp:698
DocumentAxesPointsRequired documentAxesPointsRequired() const
Get method for DocumentAxesPointsRequired.
Definition Document.cpp:366
void checkAddPointAxis(const QPointF &posScreen, const QPointF &posGraph, bool &isError, QString &errorMessage, bool isXOnly)
Check before calling addPointAxis. Also returns the next available ordinal number (to prevent clashes...
Definition Document.cpp:271
void removePoint(const QString &identifier)
Remove specified point. This aborts if the point does not exist.
GraphicsScene & scene()
Scene container for the QImage and QGraphicsItems.
static QString temporaryPointIdentifier()
Point identifier for temporary point that is used by DigitzeStateAxis.
Definition Point.cpp:519

◆ state()

QString DigitizeStateAxis::state ( ) const
virtual

State name for debugging.

Implements DigitizeStateAbstractBase.

Definition at line 202 of file DigitizeStateAxis.cpp.

203{
204 return "DigitizeStateAxis";
205}

◆ updateAfterPointAddition()

void DigitizeStateAxis::updateAfterPointAddition ( )
virtual

Update graphics attributes after possible new points. This is useful for highlight opacity.

Implements DigitizeStateAbstractBase.

Definition at line 207 of file DigitizeStateAxis.cpp.

208{
209 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateAfterPointAddition";
210}

◆ updateModelDigitizeCurve()

void DigitizeStateAxis::updateModelDigitizeCurve ( CmdMediator * cmdMediator,
const DocumentModelDigitizeCurve & modelDigitizeCurve )
virtual

Update the digitize curve settings.

Implements DigitizeStateAbstractBase.

Definition at line 212 of file DigitizeStateAxis.cpp.

214{
215 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateModelDigitizeCurve";
216
217 setCursor(cmdMediator);
218}

◆ updateModelSegments()

void DigitizeStateAxis::updateModelSegments ( const DocumentModelSegments & modelSegments)
virtual

Update the segments given the new settings.

Implements DigitizeStateAbstractBase.

Definition at line 220 of file DigitizeStateAxis.cpp.

221{
222 LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateModelSegments";
223}

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