Engauge Digitizer 2
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DigitizeStateColorPicker.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_COLOR_PICKER_H
8#define DIGITIZE_STATE_COLOR_PICKER_H
9
10#include "BackgroundImage.h"
12
14class QColor;
15class QImage;
16class QPointF;
17
22{
23public:
27
28 virtual QString activeCurve () const;
29 virtual void begin(CmdMediator *cmdMediator,
30 DigitizeState previousState);
31 virtual bool canPaste (const Transformation &transformation,
32 const QSize &viewSize) const;
33 virtual QCursor cursor (CmdMediator *cmdMediator) const;
34 virtual void end();
35 virtual bool guidelinesAreSelectable () const;
36 virtual void handleContextMenuEventAxis (CmdMediator *cmdMediator,
37 const QString &pointIdentifier);
38 virtual void handleContextMenuEventGraph (CmdMediator *cmdMediator,
39 const QStringList &pointIdentifiers);
40 virtual void handleCurveChange(CmdMediator *cmdMediator);
41 virtual void handleKeyPress (CmdMediator *cmdMediator,
42 Qt::Key key,
43 bool atLeastOneSelectedItem);
44 virtual void handleMouseMove (CmdMediator *cmdMediator,
45 QPointF posScreen);
46 virtual void handleMousePress (CmdMediator *cmdMediator,
47 QPointF posScreen);
48 virtual void handleMouseRelease (CmdMediator *cmdMediator,
49 QPointF posScreen);
50 virtual QString state() const;
51 virtual void updateAfterPointAddition ();
52 virtual void updateModelDigitizeCurve (CmdMediator *cmdMediator,
53 const DocumentModelDigitizeCurve &modelDigitizeCurve);
54 virtual void updateModelSegments(const DocumentModelSegments &modelSegments);
55
56private:
58
59 bool computeFilterFromPixel (CmdMediator *cmdMediator,
60 const QPointF &posScreen,
61 const QString &curveName,
62 DocumentModelColorFilter &modelColorFilterAfter);
63 bool findNearestNonBackgroundPixel (CmdMediator *cmdMediator,
64 const QImage &image,
65 const QPointF &posScreenPlusHalf,
66 const QRgb &rgbBackground,
67 QColor &pixel);
68 void saveLowerValueUpperValue (DocumentModelColorFilter &modelColorFilterAfter,
69 const QString &curveName,
70 double lowerValue,
71 double upperValue);
72
73 // Save previous state and background for restoring as soon as user selects a valid point
74 DigitizeState m_previousDigitizeState;
75 BackgroundImage m_previousBackground;
76};
77
78#endif // DIGITIZE_STATE_COLOR_PICKER_H
BackgroundImage
Background selection.
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,...
virtual QCursor cursor(CmdMediator *cmdMediator) const
Returns the state-specific cursor shape.
virtual void handleContextMenuEventAxis(CmdMediator *cmdMediator, const QString &pointIdentifier)
Handle a right click, on an axis point, that was intercepted earlier.
virtual void handleMousePress(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse press that was intercepted earlier.
virtual bool guidelinesAreSelectable() const
Enable/disable guidelines according to state.
virtual void updateAfterPointAddition()
Update graphics attributes after possible new points. This is useful for highlight opacity.
virtual void handleKeyPress(CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem)
Handle a key press that was intercepted earlier.
virtual void updateModelDigitizeCurve(CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &modelDigitizeCurve)
Update the digitize curve settings.
virtual void end()
Method that is called at the exact moment a state is exited. Typically called just before begin for t...
virtual QString activeCurve() const
Name of the active Curve. This can include AXIS_CURVE_NAME.
virtual void updateModelSegments(const DocumentModelSegments &modelSegments)
Update the segments given the new settings.
virtual void begin(CmdMediator *cmdMediator, DigitizeState previousState)
Method that is called at the exact moment a state is entered.
virtual void handleMouseRelease(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse release 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 QString state() const
State name for debugging.
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 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...
DigitizeStateColorPicker(DigitizeStateContext &context)
Single constructor.
virtual void handleCurveChange(CmdMediator *cmdMediator)
Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Se...
Container for all DigitizeStateAbstractBase subclasses. This functions as the context class in a stan...
Model for DlgSettingsColorFilter and CmdSettingsColorFilter.
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
Model for DlgSettingsSegments and CmdSettingsSegments.
Affine transformation between screen and graph coordinates, based on digitized axis points.