Engauge Digitizer  2
DigitizeStateCurve.cpp
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 #include "CmdAddPointGraph.h"
8 #include "CmdMediator.h"
9 #include "CursorFactory.h"
10 #include "DigitizeStateContext.h"
11 #include "DigitizeStateCurve.h"
12 #include "Logger.h"
13 #include "MainWindow.h"
14 #include "OrdinalGenerator.h"
15 #include <QCursor>
16 #include <QGraphicsScene>
17 #include <QImage>
18 #include <QSize>
19 #include "Transformation.h"
20 
23 {
24 }
25 
26 DigitizeStateCurve::~DigitizeStateCurve ()
27 {
28 }
29 
31 {
33 }
34 
36  DigitizeState /* previousState */)
37 {
38  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::begin";
39 
40  setCursor(cmdMediator);
41  context().setDragMode(QGraphicsView::NoDrag);
43 }
44 
45 bool DigitizeStateCurve::canPaste (const Transformation &transformation,
46  const QSize &size) const
47 {
48  return canPasteProtected (transformation,
49  size);
50 }
51 
52 QCursor DigitizeStateCurve::cursor(CmdMediator *cmdMediator) const
53 {
54  LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateCurve::cursor";
55 
56  CursorFactory cursorFactory;
57  QCursor cursor = cursorFactory.generate (cmdMediator->document().modelDigitizeCurve());
58 
59  return cursor;
60 }
61 
63 {
64  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::end";
65 }
66 
68  const QString &pointIdentifier)
69 {
70  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::handleContextMenuEventAxis "
71  << " point=" << pointIdentifier.toLatin1 ().data ();
72 }
73 
75  const QStringList &pointIdentifiers)
76 {
77  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve ::handleContextMenuEventGraph "
78  << "points=" << pointIdentifiers.join(",").toLatin1 ().data ();
79 }
80 
82 {
83  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::handleCurveChange";
84 }
85 
87  Qt::Key key,
88  bool /* atLeastOneSelectedItem */)
89 {
90  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::handleKeyPress"
91  << " key=" << QKeySequence (key).toString ().toLatin1 ().data ();
92 }
93 
95  QPointF /* posScreen */)
96 {
97 // LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateCurve::handleMouseMove";
98 }
99 
101  QPointF /* posScreen */)
102 {
103  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::handleMousePress";
104 }
105 
107  QPointF posScreen)
108 {
109  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::handleMouseRelease";
110 
111  // Create command to add point
112  OrdinalGenerator ordinalGenerator;
113  Document &document = cmdMediator->document ();
114  const Transformation &transformation = context ().mainWindow ().transformation();
115  QUndoCommand *cmd = new CmdAddPointGraph (context ().mainWindow(),
116  document,
117  context ().mainWindow().selectedGraphCurve(),
118  posScreen,
119  ordinalGenerator.generateCurvePointOrdinal(document,
120  transformation,
121  posScreen,
122  activeCurve ()));
123  context().appendNewCmd(cmdMediator,
124  cmd);
125 }
126 
128 {
129  return "DigitizeStateCurve";
130 }
131 
133 {
134  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::updateAfterPointAddition";
135 }
136 
138  const DocumentModelDigitizeCurve & /*modelDigitizeCurve */)
139 {
140  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::updateModelDigitizeCurve";
141 
142  setCursor(cmdMediator);
143 }
144 
146 {
147  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateCurve::updateModelSegments";
148 }
virtual void end()
Method that is called at the exact moment a state is exited. Typically called just before begin for t...
virtual void begin(CmdMediator *cmdMediator, DigitizeState previousState)
Method that is called at the exact moment a state is entered.
void setDragMode(QGraphicsView::DragMode dragMode)
Set QGraphicsView drag mode (in m_view). Called from DigitizeStateAbstractBase subclasses.
bool canPasteProtected(const Transformation &transformation, const QSize &viewSize) const
Protected version of canPaste method. Some, but not all, leaf classes use this method.
virtual void handleContextMenuEventAxis(CmdMediator *cmdMediator, const QString &pointIdentifier)
Handle a right click, on an axis point, that was intercepted earlier.
Create standard cross cursor, or custom cursor, according to settings.
Definition: CursorFactory.h:15
void updateViewsOfSettings(const QString &activeCurve)
Update curve-specific view of settings. Private version gets active curve name from DigitizeStateCont...
Document & document()
Provide the Document to commands, primarily for undo/redo processing.
Definition: CmdMediator.cpp:72
DigitizeStateCurve(DigitizeStateContext &context)
Single constructor.
DigitizeStateContext & context()
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses...
MainWindow & mainWindow()
Reference to the MainWindow, without const.
Transformation transformation() const
Return read-only copy of transformation.
virtual void handleContextMenuEventGraph(CmdMediator *cmdMediator, const QStringList &pointIdentifiers)
Handle a right click, on a graph point, that was intercepted earlier.
DocumentModelDigitizeCurve modelDigitizeCurve() const
Get method for DocumentModelDigitizeCurve.
Definition: Document.cpp:703
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
virtual void handleMousePress(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse press that was intercepted earlier.
Affine transformation between screen and graph coordinates, based on digitized axis points...
virtual void updateModelSegments(const DocumentModelSegments &modelSegments)
Update the segments given the new settings.
void setCursor(CmdMediator *cmdMediator)
Update the cursor according to the current state.
Container for all DigitizeStateAbstractBase subclasses. This functions as the context class in a stan...
void appendNewCmd(CmdMediator *cmdMediator, QUndoCommand *cmd)
Append just-created QUndoCommand to command stack. This is called from DigitizeStateAbstractBase subc...
Command for adding one graph point.
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...
virtual QString activeCurve() const
Name of the active Curve. This can include AXIS_CURVE_NAME.
Storage of one imported image and the data attached to that image.
Definition: Document.h:41
virtual void updateAfterPointAddition()
Update graphics attributes after possible new points. This is useful for highlight opacity...
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...
Utility class for generating ordinal numbers.
virtual void handleCurveChange(CmdMediator *cmdMediator)
Handle the selection of a new curve. At a minimum, DigitizeStateSegment will generate a new set of Se...
Command queue stack.
Definition: CmdMediator.h:23
Model for DlgSettingsSegments and CmdSettingsSegments.
Base class for all digitizing states. This serves as an interface to DigitizeStateContext.
virtual QCursor cursor(CmdMediator *cmdMediator) const
Returns the state-specific cursor shape.
QString selectedGraphCurve() const
Curve name that is currently selected in m_cmbCurve.
double generateCurvePointOrdinal(const Document &document, const Transformation &transformation, const QPointF &posScreen, const QString &curveName)
Select ordinal so new point curve passes smoothly through existing points.
virtual void handleKeyPress(CmdMediator *cmdMediator, Qt::Key key, bool atLeastOneSelectedItem)
Handle a key press that was intercepted earlier.
QCursor generate(const DocumentModelDigitizeCurve &modelDigitizeCurve) const
Factory method to generate standard or custom cursor.
virtual void updateModelDigitizeCurve(CmdMediator *cmdMediator, const DocumentModelDigitizeCurve &modelDigitizeCurve)
Update the digitize curve settings.
virtual QString state() const
State name for debugging.
virtual void handleMouseRelease(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse release that was intercepted earlier.