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 MainWindow;
15class Segment;
16
18class DigitizeStateSegment : public QObject, public DigitizeStateAbstractBase
19{
20 Q_OBJECT;
21
22public:
25 virtual ~DigitizeStateSegment();
26
27 virtual QString activeCurve () const;
28 virtual void begin(CmdMediator *cmdMediator,
29 DigitizeState previousState);
30 virtual bool canPaste (const Transformation &transformation,
31 const QSize &viewSize) const;
32 virtual QCursor cursor (CmdMediator *cmdMediator) const;
33 virtual void end();
34 virtual bool guidelinesAreSelectable () const;
35 virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator,
36 const QString &pointIdentifier);
37 virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator,
38 const QStringList &pointIdentifiers);
39 virtual void handleCurveChange(CmdMediator *cmdMediator);
40 virtual void handleKeyPress (CmdMediator *cmdMediator,
41 Qt::Key key,
42 bool atLeastOneSelectedItem);
43 virtual void handleMouseMove (CmdMediator *cmdMediator,
44 QPointF posScreen);
45 virtual void handleMousePress (CmdMediator *cmdMediator,
46 QPointF posScreen);
47 virtual void handleMouseRelease (CmdMediator *cmdMediator,
48 QPointF posScreen);
49 virtual QString state() const;
50 virtual void updateAfterPointAddition ();
51 virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator,
52 const DocumentModelDigitizeCurve &modelDigitizeCurve);
53 virtual void updateModelSegments(const DocumentModelSegments &modelSegments);
54
55public slots:
57 void slotMouseClickOnSegment(QPointF);
58
59private:
61
62 // Identify which Segment owns the SegmentLine that was clicked on
63 Segment *segmentFromSegmentStart (const QPointF &posSegmentStart) const;
64
65 QList<Segment*> m_segments;
66 CmdMediator *m_cmdMediator;
67};
68
69#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.
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition MainWindow.h:95
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.