Engauge Digitizer 2
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DigitizeStateSegment.h
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1/******************************************************************************************************
2 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5 ******************************************************************************************************/
6
7#ifndef DIGITIZE_STATE_SEGMENT_H
8#define DIGITIZE_STATE_SEGMENT_H
9
11#include <QList>
12#include <QObject>
13
14class Segment;
15
17class DigitizeStateSegment : public QObject, public DigitizeStateAbstractBase
18{
19 Q_OBJECT;
20
21public:
24 virtual ~DigitizeStateSegment();
25
26 virtual QString activeCurve () const;
27 virtual void begin(CmdMediator *cmdMediator,
28 DigitizeState previousState);
29 virtual bool canPaste (const Transformation &transformation,
30 const QSize &viewSize) const;
31 virtual QCursor cursor (CmdMediator *cmdMediator) const;
32 virtual void end();
33 virtual bool guidelinesAreSelectable () const;
34 virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator,
35 const QString &pointIdentifier);
36 virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator,
37 const QStringList &pointIdentifiers);
38 virtual void handleCurveChange(CmdMediator *cmdMediator);
39 virtual void handleKeyPress (CmdMediator *cmdMediator,
40 Qt::Key key,
41 bool atLeastOneSelectedItem);
42 virtual void handleMouseMove (CmdMediator *cmdMediator,
43 QPointF posScreen);
44 virtual void handleMousePress (CmdMediator *cmdMediator,
45 QPointF posScreen);
46 virtual void handleMouseRelease (CmdMediator *cmdMediator,
47 QPointF posScreen);
48 virtual QString state() const;
49 virtual void updateAfterPointAddition ();
50 virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator,
51 const DocumentModelDigitizeCurve &modelDigitizeCurve);
52 virtual void updateModelSegments(const DocumentModelSegments &modelSegments);
53
54public slots:
56 void slotMouseClickOnSegment(QPointF);
57
58private:
60
61 // Identify which Segment owns the SegmentLine that was clicked on
62 Segment *segmentFromSegmentStart (const QPointF &posSegmentStart) const;
63
64 QList<Segment*> m_segments;
65 CmdMediator *m_cmdMediator;
66};
67
68#endif // DIGITIZE_STATE_SEGMENT_H
DigitizeState
Set of possible states of Digitize toolbar.
Command queue stack.
Definition CmdMediator.h:24
DigitizeStateAbstractBase(DigitizeStateContext &context)
Single constructor.
DigitizeStateContext & context()
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses,...
Container for all DigitizeStateAbstractBase subclasses. This functions as the context class in a stan...
virtual bool guidelinesAreSelectable() const
Enable/disable guidelines according to state.
virtual QString state() const
State name for debugging.
virtual void handleMousePress(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse press that was intercepted earlier.
virtual void handleContextMenuEventAxis(CmdMediator *cmdMediator, const QString &pointIdentifier)
Handle a right click, on an axis point, that was intercepted earlier.
virtual void begin(CmdMediator *cmdMediator, DigitizeState previousState)
Method that is called at the exact moment a state is entered.
virtual QString activeCurve() const
Name of the active Curve. This can include AXIS_CURVE_NAME.
virtual void handleKeyPress(CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem)
Handle a key press that was intercepted earlier.
void slotMouseClickOnSegment(QPointF)
Receive signal from Segment that has been clicked on. The CmdMediator from the begin method will be u...
virtual void handleCurveChange(CmdMediator *cmdMediator)
Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Se...
virtual void handleContextMenuEventGraph(CmdMediator *cmdMediator, const QStringList &pointIdentifiers)
Handle a right click, on a graph point, that was intercepted earlier.
virtual QCursor cursor(CmdMediator *cmdMediator) const
Returns the state-specific cursor shape.
virtual void updateModelDigitizeCurve(CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &modelDigitizeCurve)
Update the digitize curve settings.
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 curre...
DigitizeStateSegment(DigitizeStateContext &context)
Single constructor.
virtual void end()
Method that is called at the exact moment a state is exited. Typically called just before begin for t...
virtual void updateAfterPointAddition()
Update graphics attributes after possible new points. This is useful for highlight opacity.
virtual void updateModelSegments(const DocumentModelSegments &modelSegments)
Update the segments given the new settings.
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 mod...
virtual void handleMouseRelease(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse release that was intercepted earlier.
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
Model for DlgSettingsSegments and CmdSettingsSegments.
Selectable piecewise-defined line that follows a filtered line in the image.
Definition Segment.h:22
Affine transformation between screen and graph coordinates, based on digitized axis points.