Engauge Digitizer  2
DigitizeStateAxis.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 "CmdAddPointAxis.h"
8 #include "CmdMediator.h"
9 #include "CursorFactory.h"
10 #include "DigitizeStateAxis.h"
11 #include "DigitizeStateContext.h"
12 #include "DlgEditPointAxis.h"
13 #include "Document.h"
14 #include "GraphicsScene.h"
15 #include "GraphicsView.h"
16 #include "Logger.h"
17 #include "MainWindow.h"
18 #include "PointStyle.h"
19 #include <QCursor>
20 #include <QImage>
21 #include <QMessageBox>
22 #include <QTimer>
23 
26 {
27 }
28 
29 DigitizeStateAxis::~DigitizeStateAxis ()
30 {
31 }
32 
34 {
35  return AXIS_CURVE_NAME;
36 }
37 
39  DigitizeState /* previousState */)
40 {
41  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::begin";
42 
43  setCursor(cmdMediator);
44  context().setDragMode(QGraphicsView::NoDrag);
46 }
47 
48 void DigitizeStateAxis::createTemporaryPoint (CmdMediator *cmdMediator,
49  const QPointF &posScreen)
50 {
51  LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateAxis::createTemporaryPoint";
52 
53  GeometryWindow *NULL_GEOMETRY_WINDOW = 0;
54 
55  // Temporary point that user can see while DlgEditPointAxis is active
56  const Curve &curveAxes = cmdMediator->curveAxes();
57  PointStyle pointStyleAxes = curveAxes.curveStyle().pointStyle();
59  pointStyleAxes,
60  posScreen,
61  NULL_GEOMETRY_WINDOW);
62 
64  point);
65 }
66 
67 QCursor DigitizeStateAxis::cursor(CmdMediator *cmdMediator) const
68 {
69  LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateAxis::cursor";
70 
71  CursorFactory cursorFactory;
72  QCursor cursor = cursorFactory.generate (cmdMediator->document().modelDigitizeCurve());
73 
74  return cursor;
75 }
76 
78 {
79  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::end";
80 }
81 
83  const QString &pointIdentifier)
84 {
85  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleContextMenuEventAxis "
86  << " point=" << pointIdentifier.toLatin1 ().data ();
87 }
88 
90  const QStringList &pointIdentifiers)
91 {
92  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleContextMenuEventGraph "
93  << "points=" << pointIdentifiers.join(",").toLatin1 ().data ();
94 }
95 
97 {
98  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleCurveChange";
99 }
100 
102  Qt::Key key,
103  bool /* atLeastOneSelectedItem */)
104 {
105  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleKeyPress"
106  << " key=" << QKeySequence (key).toString ().toLatin1 ().data ();
107 }
108 
110  QPointF /* posScreen */)
111 {
112 // LOG4CPP_DEBUG_S ((*mainCat)) << "DigitizeStateAxis::handleMouseMove";
113 }
114 
116  QPointF /* posScreen */)
117 {
118  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleMousePress";
119 }
120 
122  QPointF posScreen)
123 {
124  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::handleMouseRelease";
125 
126  if (context().mainWindow().transformIsDefined()) {
127 
128  QMessageBox::warning (0,
129  QObject::tr ("Engauge Digitizer"),
130  QObject::tr ("Three axis points have been defined, and no more are needed or allowed."));
131 
132  } else {
133 
134  createTemporaryPoint (cmdMediator,
135  posScreen);
136 
137  // Ask user for coordinates
138  DlgEditPointAxis *dlg = new DlgEditPointAxis (context ().mainWindow (),
139  cmdMediator->document().modelCoords(),
140  cmdMediator->document().modelGeneral(),
143  cmdMediator->document().documentAxesPointsRequired());
144  int rtn = dlg->exec ();
145 
146  bool isXOnly;
147  QPointF posGraph = dlg->posGraph (isXOnly);
148  delete dlg;
149 
150  // Remove temporary point
152 
153  if (rtn == QDialog::Accepted) {
154 
155  // User wants to add this axis point, but let's perform sanity checks first
156 
157  bool isError;
158  QString errorMessage;
159  int nextOrdinal = cmdMediator->document().nextOrdinalForCurve(AXIS_CURVE_NAME);
160 
161  cmdMediator->document().checkAddPointAxis(posScreen,
162  posGraph,
163  isError,
164  errorMessage,
165  isXOnly);
166 
167  if (isError) {
168 
169  QMessageBox::warning (0,
170  QObject::tr ("Engauge Digitizer"),
171  errorMessage);
172 
173  } else {
174 
175  // Create command to add point
176  Document &document = cmdMediator->document ();
177  QUndoCommand *cmd = new CmdAddPointAxis (context ().mainWindow(),
178  document,
179  posScreen,
180  posGraph,
181  nextOrdinal,
182  isXOnly);
183  context().appendNewCmd(cmdMediator,
184  cmd);
185  }
186  }
187  }
188 }
189 
191 {
192  return "DigitizeStateAxis";
193 }
194 
196 {
197  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateAfterPointAddition";
198 }
199 
201  const DocumentModelDigitizeCurve & /*modelDigitizeCurve */)
202 {
203  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateModelDigitizeCurve";
204 
205  setCursor(cmdMediator);
206 }
207 
209 {
210  LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateAxis::updateModelSegments";
211 }
Dialog box for editing the information of one axis point, in a graph with two axes.
virtual void handleContextMenuEventGraph(CmdMediator *cmdMediator, const QStringList &pointIdentifiers)
Handle a right click, on a graph point, that was intercepted earlier.
DocumentAxesPointsRequired documentAxesPointsRequired() const
Get method for DocumentAxesPointsRequired.
Definition: Document.cpp:361
const Curve & curveAxes() const
See Document::curveAxes.
Definition: CmdMediator.cpp:57
virtual void updateModelSegments(const DocumentModelSegments &modelSegments)
Update the segments given the new settings.
void removePoint(const QString &identifier)
Remove specified point. This aborts if the point does not exist.
Transformation transformation() const
Return read-only copy of transformation.
void setDragMode(QGraphicsView::DragMode dragMode)
Set QGraphicsView drag mode (in m_view). Called from DigitizeStateAbstractBase subclasses.
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...
DocumentModelCoords modelCoords() const
Get method for DocumentModelCoords.
Definition: Document.cpp:693
QPointF posGraph(bool &isXOnly) const
Return the graph coordinates position specified by the user. Only applies if dialog was accepted...
PointStyle pointStyle() const
Get method for PointStyle.
Definition: CurveStyle.cpp:75
Window that displays the geometry information, as a table, for the current curve. ...
virtual void handleMousePress(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse press that was intercepted earlier.
Document & document()
Provide the Document to commands, primarily for undo/redo processing.
Definition: CmdMediator.cpp:72
DigitizeStateContext & context()
Reference to the DigitizeStateContext that contains all the DigitizeStateAbstractBase subclasses...
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:268
virtual QString activeCurve() const
Name of the active Curve. This can include AXIS_CURVE_NAME.
MainWindow & mainWindow()
Reference to the MainWindow, without const.
static QString temporaryPointIdentifier()
Point identifier for temporary point that is used by DigitzeStateAxis.
Definition: Point.cpp:507
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 updateAfterPointAddition()
Update graphics attributes after possible new points. This is useful for highlight opacity...
GraphicsPoint * createPoint(const QString &identifier, const PointStyle &pointStyle, const QPointF &posScreen, GeometryWindow *geometryWindow)
Create one QGraphicsItem-based object that represents one Point. It is NOT added to m_graphicsLinesFo...
Model for DlgSettingsDigitizeCurve and CmdSettingsDigitizeCurve.
Details for a specific Point.
Definition: PointStyle.h:20
GraphicsScene & scene()
Scene container for the QImage and QGraphicsItems.
void setCursor(CmdMediator *cmdMediator)
Update the cursor according to the current state.
virtual QString state() const
State name for debugging.
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 axis point.
DocumentModelDigitizeCurve modelDigitizeCurve() const
Get method for DocumentModelDigitizeCurve.
Definition: Document.cpp:707
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.
Storage of one imported image and the data attached to that image.
Definition: Document.h:41
Container for one set of digitized Points.
Definition: Curve.h:33
Graphics item for drawing a circular or polygonal Point.
Definition: GraphicsPoint.h:43
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 handleMouseRelease(CmdMediator *cmdMediator, QPointF posScreen)
Handle a mouse release that was intercepted earlier.
int nextOrdinalForCurve(const QString &curveName) const
Default next ordinal value for specified curve.
Definition: Document.cpp:763
Command queue stack.
Definition: CmdMediator.h:23
void addTemporaryPoint(const QString &identifier, GraphicsPoint *point)
Add one temporary point to m_graphicsLinesForCurves. Non-temporary points are handled by the updateLi...
Model for DlgSettingsSegments and CmdSettingsSegments.
CurveStyle curveStyle() const
Return the curve style.
Definition: Curve.cpp:148
Base class for all digitizing states. This serves as an interface to DigitizeStateContext.
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 begin(CmdMediator *cmdMediator, DigitizeState previousState)
Method that is called at the exact moment a state is entered.
DigitizeStateAxis(DigitizeStateContext &context)
Single constructor.
QCursor generate(const DocumentModelDigitizeCurve &modelDigitizeCurve) const
Factory method to generate standard or custom cursor.
MainWindowModel modelMainWindow() const
Get method for main window model.
DocumentModelGeneral modelGeneral() const
Get method for DocumentModelGeneral.
Definition: Document.cpp:721
virtual void end()
Method that is called at the exact moment a state is exited. Typically called just before begin for t...