QGraphicsItem *GridLineFactory::lineItem (const QPointF &posStartScreen,
const QPointF &posEndScreen) const
{
LOG4CPP_DEBUG_S ((*mainCat)) << "GridLineFactory::lineItem"
<< " posStartScreen=" << QPointFToString (posStartScreen).toLatin1().data()
<< " posEndScreen=" << QPointFToString (posEndScreen).toLatin1().data();
return new QGraphicsLineItem (QLineF (posStartScreen,
posEndScreen));
}
QGraphicsItem *Checker::lineItem (const QPointF &posStartScreen,
const QPointF &posEndScreen) const
{
LOG4CPP_INFO_S ((*mainCat)) << "Checker::lineItem"
<< " posStartScreen=" << QPointFToString (posStartScreen).toLatin1().data()
<< " posEndScreen=" << QPointFToString (posEndScreen).toLatin1().data();
return new QGraphicsLineItem (QLineF (posStartScreen,
posEndScreen));
}
void GridLineFactory::createTransformAlign (const Transformation &transformation,
double radiusLinearCartesian,
const QPointF &posOriginScreen,
QTransform &transformAlign,
double &ellipseXAxis,
double &ellipseYAxis) const
{
// LOG4CPP_INFO_S is below
// Compute a minimal transformation that aligns the graph x and y axes with the screen x and y axes. Specifically, shear,
// translation and rotation are allowed but not scaling. Scaling is bad since it messes up the line thickness of the drawn arc.
//
// Assumptions:
// 1) Keep the graph origin at the same screen coordinates
// 2) Keep the (+radius,0) the same pixel distance from the origin but moved to the same pixel row as the origin
// 3) Keep the (0,+radius) the same pixel distance from the origin but moved to the same pixel column as the origin
// Get (+radius,0) and (0,+radius) points
QPointF posXRadiusY0Graph (radiusLinearCartesian, 0), posX0YRadiusGraph (0, radiusLinearCartesian);
QPointF posXRadiusY0Screen, posX0YRadiusScreen;
transformation.transformLinearCartesianGraphToScreen (posXRadiusY0Graph,
posXRadiusY0Screen);
transformation.transformLinearCartesianGraphToScreen (posX0YRadiusGraph,
posX0YRadiusScreen);
// Compute arc/ellipse parameters
QPointF deltaXRadiusY0 = posXRadiusY0Screen - posOriginScreen;
QPointF deltaX0YRadius = posX0YRadiusScreen - posOriginScreen;
ellipseXAxis = qSqrt (deltaXRadiusY0.x () * deltaXRadiusY0.x () +
deltaXRadiusY0.y () * deltaXRadiusY0.y ());
ellipseYAxis = qSqrt (deltaX0YRadius.x () * deltaX0YRadius.x () +
deltaX0YRadius.y () * deltaX0YRadius.y ());
// Compute the aligned coordinates, constrained by the rules listed above
QPointF posXRadiusY0AlignedScreen (posOriginScreen.x() + ellipseXAxis, posOriginScreen.y());
QPointF posX0YRadiusAlignedScreen (posOriginScreen.x(), posOriginScreen.y() - ellipseYAxis);
transformAlign = Transformation::calculateTransformFromLinearCartesianPoints (posOriginScreen,
posXRadiusY0Screen,
posX0YRadiusScreen,
posOriginScreen,
posXRadiusY0AlignedScreen,
posX0YRadiusAlignedScreen);
LOG4CPP_INFO_S ((*mainCat)) << "GridLineFactory::createTransformAlign"
<< " transformation=" << QTransformToString (transformation.transformMatrix()).toLatin1().data() << endl
<< " radiusLinearCartesian=" << radiusLinearCartesian
<< " posXRadiusY0Screen=" << QPointFToString (posXRadiusY0Screen).toLatin1().data()
<< " posX0YRadiusScreen=" << QPointFToString (posX0YRadiusScreen).toLatin1().data()
<< " ellipseXAxis=" << ellipseXAxis
<< " ellipseYAxis=" << ellipseYAxis
<< " posXRadiusY0AlignedScreen=" << QPointFToString (posXRadiusY0AlignedScreen).toLatin1().data()
<< " posX0YRadiusAlignedScreen=" << QPointFToString (posX0YRadiusAlignedScreen).toLatin1().data()
<< " transformAlign=" << QTransformToString (transformAlign).toLatin1().data();
}
CallbackSearchReturn CallbackDocumentHash::callback (const QString &curveName,
const Point &point)
{
// LOG4CPP_DEBUG_S is below
// Capture all important information about the point into the hash. A single string representing all of the point's details is
// created, which can be logged, and then that string is added to the hash
QString details;
details += curveName.toLatin1();
details += " " + point.identifier ();
details += " " + QPointFToString (point.posScreen());
if (point.hasOrdinal ()) {
details += " " + QString::number (point.ordinal ());
}
if (point.isAxisPoint()) {
if (m_documentAxesPointsRequired == DOCUMENT_AXES_POINTS_REQUIRED_3) {
// Axis point has one or coordinate
if (point.isXOnly()) {
details += " " + QString::number (point.posGraph().x());
} else {
details += " " + QString::number (point.posGraph().y());
}
} else {
// Axis point has two coordinates
details += " " + QPointFToString (point.posGraph());
}
}
LOG4CPP_DEBUG_S ((*mainCat)) << "CallbackDocumentHash::callback details=" << details.toLatin1().data();
// Add details to hash
m_documentHash.addData (details.toLatin1());
return CALLBACK_SEARCH_RETURN_CONTINUE;
}
void DigitizeStateSelect::handleMouseRelease (CmdMediator *cmdMediator,
QPointF posScreen)
{
LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateSelect::handleMouseRelease"
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ();
QPointF deltaScreen = posScreen - m_movingStart;
QStringList positionHasChangedIdentifers = context().mainWindow().scene().positionHasChangedPointIdentifiers();
bool positionHasChanged = (positionHasChangedIdentifers.count () > 0);
if (positionHasChanged && (
deltaScreen.x () != 0 ||
deltaScreen.y () != 0)) {
QString moveText = moveTextFromDeltaScreen (deltaScreen);
// Create command to move points
CmdMoveBy *cmd = new CmdMoveBy (context().mainWindow(),
cmdMediator->document(),
deltaScreen,
moveText,
positionHasChangedIdentifers);
context().appendNewCmd (cmdMediator,
cmd);
} else {
// Selection probably changed so update the MainWindow controls (especially Cut)
context().mainWindow().updateAfterMouseRelease();
showCoordinatesIfSinglePointIsSelected ();
}
}
void DigitizeStateSelect::handleMousePress (QPointF posScreen)
{
LOG4CPP_INFO_S ((*mainCat)) << "DigitizeStateSelect::handleMousePress"
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ();
// Note that GraphicsView has already called GraphicsPointAbstract::resetPositionHasChanged on all items
m_movingStart = posScreen;
}
void Checker::finishActiveSegment (const DocumentModelCoords &modelCoords,
const QPointF &posStartScreen,
const QPointF &posEndScreen,
double yFrom,
double yTo,
const Transformation &transformation,
SideSegments &sideSegments) const
{
LOG4CPP_INFO_S ((*mainCat)) << "Checker::finishActiveSegment"
<< " posStartScreen=" << QPointFToString (posStartScreen).toLatin1().data()
<< " posEndScreen=" << QPointFToString (posEndScreen).toLatin1().data()
<< " yFrom=" << yFrom
<< " yTo=" << yTo;
QGraphicsItem *item;
if ((modelCoords.coordsType() == COORDS_TYPE_POLAR) &&
(yFrom == yTo)) {
// Linear cartesian radius
double radiusLinearCartesian = yFrom;
if (modelCoords.coordScaleYRadius() == COORD_SCALE_LOG) {
radiusLinearCartesian = transformation.logToLinearRadius(yFrom,
modelCoords.originRadius());
} else {
radiusLinearCartesian -= modelCoords.originRadius();
}
// Draw along an arc since this is a side of constant radius, and we have polar coordinates
item = ellipseItem (transformation,
radiusLinearCartesian,
posStartScreen,
posEndScreen);
} else {
// Draw straight line
item = lineItem (posStartScreen,
posEndScreen);
}
sideSegments.push_back (item);
bindItemToScene (item);
}
void GridLineFactory::finishActiveGridLine (const QPointF &posStartScreen,
const QPointF &posEndScreen,
double yFrom,
double yTo,
const Transformation &transformation,
GridLine &gridLine) const
{
LOG4CPP_DEBUG_S ((*mainCat)) << "GridLineFactory::finishActiveGridLine"
<< " posStartScreen=" << QPointFToString (posStartScreen).toLatin1().data()
<< " posEndScreen=" << QPointFToString (posEndScreen).toLatin1().data()
<< " yFrom=" << yFrom
<< " yTo=" << yTo;
QGraphicsItem *item;
if ((m_modelCoords.coordsType() == COORDS_TYPE_POLAR) &&
(yFrom == yTo)) {
// Linear cartesian radius
double radiusLinearCartesian = yFrom;
if (m_modelCoords.coordScaleYRadius() == COORD_SCALE_LOG) {
radiusLinearCartesian = transformation.logToLinearRadius(yFrom,
m_modelCoords.originRadius());
} else {
radiusLinearCartesian -= m_modelCoords.originRadius();
}
// Draw along an arc since this is a side of constant radius, and we have polar coordinates
item = ellipseItem (transformation,
radiusLinearCartesian,
posStartScreen,
posEndScreen);
} else {
// Draw straight line
item = lineItem (posStartScreen,
posEndScreen);
}
gridLine.add (item);
bindItemToScene (item);
}
void CoordSystem::addPointAxisWithSpecifiedIdentifier (const QPointF &posScreen,
const QPointF &posGraph,
const QString &identifier,
double ordinal,
bool isXOnly)
{
Point point (AXIS_CURVE_NAME,
identifier,
posScreen,
posGraph,
ordinal,
isXOnly);
m_curveAxes->addPoint (point);
LOG4CPP_INFO_S ((*mainCat)) << "CoordSystem::addPointAxisWithSpecifiedIdentifier"
<< " ordinal=" << ordinal
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ()
<< " posGraph=" << QPointFToString (posGraph).toLatin1 ().data ()
<< " identifier=" << identifier.toLatin1 ().data ();
}
void CoordSystem::checkAddPointAxis (const QPointF &posScreen,
const QPointF &posGraph,
bool &isError,
QString &errorMessage,
bool isXOnly)
{
LOG4CPP_INFO_S ((*mainCat)) << "CoordSystem::checkAddPointAxis"
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ()
<< " posGraph=" << QPointFToString (posGraph).toLatin1 ().data ();
CallbackCheckAddPointAxis ftor (m_modelCoords,
posScreen,
posGraph,
m_documentAxesPointsRequired,
isXOnly);
Functor2wRet<const QString &, const Point &, CallbackSearchReturn> ftorWithCallback = functor_ret (ftor,
&CallbackCheckAddPointAxis::callback);
m_curveAxes->iterateThroughCurvePoints (ftorWithCallback);
isError = ftor.isError ();
errorMessage = ftor.errorMessage ();
}
void GraphicsLinesForCurves::addPoint (const QString &curveName,
const QString &pointIdentifier,
double ordinal,
GraphicsPoint &point)
{
LOG4CPP_INFO_S ((*mainCat)) << "GraphicsLinesForCurves::addPoint"
<< " curve=" << curveName.toLatin1().data()
<< " identifier=" << pointIdentifier.toLatin1().data()
<< " ordinal=" << ordinal
<< " pos=" << QPointFToString (point.pos()).toLatin1().data();
m_graphicsLinesForCurve [curveName]->addPoint (pointIdentifier,
ordinal,
point);
}
CmdAddPointGraph::CmdAddPointGraph (MainWindow &mainWindow,
Document &document,
const QString &curveName,
const QPointF &posScreen,
double ordinal) :
CmdPointChangeBase (mainWindow,
document,
CMD_DESCRIPTION),
m_curveName (curveName),
m_posScreen (posScreen),
m_ordinal (ordinal)
{
LOG4CPP_INFO_S ((*mainCat)) << "CmdAddPointGraph::CmdAddPointGraph"
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ()
<< " ordinal=" << m_ordinal;
}
void CoordSystem::addPointGraphWithSpecifiedIdentifier (const QString &curveName,
const QPointF &posScreen,
const QString &identifier,
double ordinal)
{
Point point (curveName,
identifier,
posScreen,
ordinal);
m_curvesGraphs.addPoint (point);
LOG4CPP_INFO_S ((*mainCat)) << "CoordSystem::addPointGraphWithSpecifiedIdentifier"
<< " ordinal=" << ordinal
<< " posScreen=" << QPointFToString (posScreen).toLatin1 ().data ()
<< " identifier=" << identifier.toLatin1 ().data ();
}
QGraphicsItem *GridLineFactory::ellipseItem (const Transformation &transformation,
double radiusLinearCartesian,
const QPointF &posStartScreen,
const QPointF &posEndScreen) const
{
// LOG4CPP_INFO_S is below
QPointF posStartGraph, posEndGraph;
transformation.transformScreenToRawGraph (posStartScreen,
posStartGraph);
transformation.transformScreenToRawGraph (posEndScreen,
posEndGraph);
// Get the angles about the origin of the start and end points
double angleStart = posStartGraph.x() * DEGREES_TO_RADIANS;
double angleEnd = posEndGraph.x() * DEGREES_TO_RADIANS;
if (angleEnd < angleStart) {
angleEnd += TWO_PI;
}
double angleSpan = angleEnd - angleStart;
// Get origin
QPointF posOriginGraph (0, 0), posOriginScreen;
transformation.transformLinearCartesianGraphToScreen (posOriginGraph,
posOriginScreen);
LOG4CPP_INFO_S ((*mainCat)) << "GridLineFactory::ellipseItem"
<< " radiusLinearCartesian=" << radiusLinearCartesian
<< " posStartScreen=" << QPointFToString (posStartScreen).toLatin1().data()
<< " posEndScreen=" << QPointFToString (posEndScreen).toLatin1().data()
<< " posOriginScreen=" << QPointFToString (posOriginScreen).toLatin1().data()
<< " angleStart=" << angleStart / DEGREES_TO_RADIANS
<< " angleEnd=" << angleEnd / DEGREES_TO_RADIANS
<< " transformation=" << transformation;
// Compute rotate/shear transform that aligns linear cartesian graph coordinates with screen coordinates, and ellipse parameters.
// Transform does not include scaling since that messes up the thickness of the drawn line, and does not include
// translation since that is not important
double ellipseXAxis, ellipseYAxis;
QTransform transformAlign;
createTransformAlign (transformation,
radiusLinearCartesian,
posOriginScreen,
transformAlign,
ellipseXAxis,
ellipseYAxis);
// Create a circle in graph space with the specified radius
QRectF boundingRect (-1.0 * ellipseXAxis + posOriginScreen.x(),
-1.0 * ellipseYAxis + posOriginScreen.y(),
2 * ellipseXAxis,
2 * ellipseYAxis);
GraphicsArcItem *item = new GraphicsArcItem (boundingRect);
item->setStartAngle (angleStart * RADIANS_TO_TICS);
item->setSpanAngle (angleSpan * RADIANS_TO_TICS);
item->setTransform (transformAlign.transposed ().inverted ());
return item;
}
