/**
* \return A presentable label for the given value. The number locale
* is used to determine if the decimal point is a dot or a comma.
* \see RSettings::getNumberLocale()
*/
QString RUnit::getLabel(double v, RDocument& document,
bool forceMaxPrecision, bool forceSuppressTrailingZeroes) {
if (fabs(v) < 1e-6) {
v = 0.0;
}
return RUnit::formatLinear(v, document.getUnit(),
document.getLinearFormat(),
forceMaxPrecision ? 8 : document.getLinearPrecision(),
false,
document.showLeadingZeroes(),
forceSuppressTrailingZeroes ? false : document.showTrailingZeroes());
//QLocale locale = RSettings::getNumberLocale();
//return locale.toString(v, 'g', 6);
}
void ROrthoGrid::paintRuler(RRuler& ruler, qreal devicePixelRatio) {
RDocument* doc = view.getDocument();
if (doc == NULL) {
return;
}
RS::Unit unit = doc->getUnit();
RS::LinearFormat linearFormat = doc->getLinearFormat();
// use grid spacing if available or auto grid spacing:
RVector localSpacing = spacing;
if (!localSpacing.isValid() ||
(autoSpacing.isValid() && autoSpacing.getMagnitude2d() < localSpacing.getMagnitude2d())) {
localSpacing = autoSpacing;
}
// use meta grid spacing if available or auto meta grid spacing:
RVector localMetaSpacing = metaSpacing;
if (!localMetaSpacing.isValid() ||
(autoMetaSpacing.isValid() && autoMetaSpacing.getMagnitude2d() < localMetaSpacing.getMagnitude2d())) {
//localMetaSpacing = autoMetaSpacing;
}
//if (!localMetaSpacing.isValid()) {
// qDebug() << "no local meta spacing";
// return;
//}
if (localSpacing.getMagnitude()<1.0e-6 || localMetaSpacing.getMagnitude()<1.0e-6) {
//qDebug() << "local (meta) spacing too small";
return;
}
RVector min = gridBox.getCorner1();
RVector max = gridBox.getCorner2();
bool isHorizontal = ruler.getOrientation() == Qt::Horizontal;
double tickSpacing;
//if (!RUnit::isMetric(doc->getUnit())) {
if (isFractionalFormat(linearFormat) && !RUnit::isMetric(unit)) {
if (isHorizontal) {
tickSpacing = localSpacing.x;
} else {
tickSpacing = localSpacing.y;
}
} else {
if (isHorizontal) {
tickSpacing = localMetaSpacing.x;
} else {
tickSpacing = localMetaSpacing.y;
}
if (view.mapDistanceToView(tickSpacing) >= 80) {
tickSpacing /= 10;
} else if (view.mapDistanceToView(tickSpacing) >= 30) {
tickSpacing /= 5;
} else if (view.mapDistanceToView(tickSpacing) >= 20) {
tickSpacing /= 2;
}
}
// ideal tick spacing in pixels:
int pSpacing = (int) ceil(view.mapDistanceToView(tickSpacing));
QString l1 = RUnit::getLabel(isHorizontal ? min.x : min.y, *doc, false, true);
QString l2 = RUnit::getLabel(isHorizontal ? max.x : max.y, *doc, false, true);
int labelWidth = std::max(
QFontMetrics(ruler.getFont()).boundingRect(l1).width(),
QFontMetrics(ruler.getFont()).boundingRect(l2).width()) + 15;
// smallest displayable distance between labels in steps (ticks):
int minLabelStep = 1;
if (pSpacing>0) {
minLabelStep = labelWidth / pSpacing + 1;
}
int labelStep = minLabelStep;
//if (!RUnit::isMetric(doc->getUnit())) {
if (isFractionalFormat(linearFormat) && !RUnit::isMetric(unit)) {
// non metric
double f = 1.0/128;
do {
if (localMetaSpacing.isValid()) {
if (isHorizontal) {
labelStep = RMath::mround(localMetaSpacing.x / localSpacing.x) * f;
} else {
labelStep = RMath::mround(localMetaSpacing.y / localSpacing.y) * f;
}
}
else {
labelStep = (int)f;
}
f = f * 2;
if (f>65536) {
labelStep = -1;
}
} while (labelStep < minLabelStep && labelStep>=0);
} else {
// metric
if (labelStep >= 3 && labelStep <= 4) {
labelStep = 5;
} else if (labelStep >= 6 && labelStep <= 9) {
labelStep = 10;
} else if (labelStep >= 11 && labelStep <= 19) {
labelStep = 20;
} else if (labelStep >= 21 && labelStep <= 99) {
labelStep = 100;
}
}
if (labelStep<0) {
return;
}
if (labelStep<1) {
labelStep = 1;
}
double minPos;
double maxPos;
if (isHorizontal) {
minPos = (floor(view.mapFromView(RVector(0, 0)).x
/ (labelStep * tickSpacing))-1) * (labelStep * tickSpacing);
maxPos = (ceil(view.mapFromView(RVector(view.getWidth(), 0)).x
/ (labelStep * tickSpacing))+1) * (labelStep * tickSpacing);
} else {
minPos = (floor(view.mapFromView(RVector(0, view.getHeight())).y
/ (labelStep * tickSpacing))-1) * (labelStep * tickSpacing);
maxPos = (ceil(view.mapFromView(RVector(0, 0)).y
/ (labelStep * tickSpacing))+1) * (labelStep * tickSpacing);
}
if ((maxPos - minPos) / tickSpacing > 1e3) {
return;
}
int c;
double p;
for (c = 0, p = minPos; p < maxPos; p += tickSpacing, ++c) {
bool hasLabel = c % labelStep == 0;
double v;
if (isHorizontal) {
v = view.mapToView(RVector(p, 0)).x;
} else {
v = view.mapToView(RVector(0, p)).y;
}
ruler.paintTick(v*devicePixelRatio, hasLabel, hasLabel ? RUnit::getLabel(p, *doc, false, true, true) : QString());
}
}
/**
* Updates the grid information, in particular the grid spacing and
* grid region to the current view port.
*/
void ROrthoGrid::update(bool force) {
if (!force && viewBox==view.getBox()) {
return;
}
viewBox = view.getBox();
int viewportNumber = view.getViewportNumber();
RDocument* doc = view.getDocument();
if (doc == NULL) {
qWarning() << "ROrthoGrid::update: document is NULL";
return;
}
RGraphicsScene* scene = view.getScene();
if (scene==NULL) {
qWarning() << "ROrthoGrid::update: scene is NULL";
return;
}
RS::ProjectionRenderingHint hint = scene->getProjectionRenderingHint();
// for 3d views, we have no convenient way to calculate the grid dimensions:
if (hint == RS::RenderThreeD) {
gridBox = RBox(RVector(-1000, -1000), RVector(1000, 1000));
spacing = RVector(10.0, 10.0);
return;
}
QString key;
key = QString("Grid/IsometricGrid0%1").arg(viewportNumber);
isometric = doc->getVariable(key, false, true).toBool();
RS::Unit unit = doc->getUnit();
RS::LinearFormat linearFormat = doc->getLinearFormat();
// default values for missing configurations and 'auto' settings:
minSpacing.valid = true;
minMetaSpacing.valid = true;
if (isFractionalFormat(linearFormat) && !RUnit::isMetric(unit)) {
//minSpacing.x = minSpacing.y = RNANDOUBLE;
//minMetaSpacing.x = minMetaSpacing.y = RNANDOUBLE;
minSpacing.x = minSpacing.y = RUnit::convert(1.0, RS::Inch, unit) / 1024;
minMetaSpacing.x = minMetaSpacing.y = RUnit::convert(1.0, RS::Inch, unit) / 1024;
}
else {
minSpacing.x = minSpacing.y = 1.0e-6;
minMetaSpacing.x = minMetaSpacing.y = RNANDOUBLE;
//minSpacing.x = minSpacing.y = RNANDOUBLE;
//minMetaSpacing.x = minMetaSpacing.y = 1.0e-6;
}
key = QString("Grid/GridSpacingX0%1").arg(viewportNumber);
QVariant strSx = doc->getVariable(key, QVariant(), true);
key = QString("Grid/GridSpacingY0%1").arg(viewportNumber);
QVariant strSy = doc->getVariable(key, QVariant(), true);
spacing.valid = true;
bool autoX = !strSx.isValid() || strSx.toString()=="auto";
bool autoY = !strSy.isValid() || strSy.toString()=="auto";
// grid spacing x:
if (!autoX) {
// fixed:
double d = RMath::eval(strSx.toString());
if (!RMath::hasError() && d>RS::PointTolerance) {
minSpacing.x = spacing.x = d;
}
}
// grid spacing y:
if (!autoY) {
double d = RMath::eval(strSy.toString());
if (!RMath::hasError() && d>RS::PointTolerance) {
minSpacing.y = spacing.y = d;
}
}
// meta grid:
key = QString("Grid/MetaGridSpacingX0%1").arg(viewportNumber);
QVariant strMsx = doc->getVariable(key, QVariant(), true);
key = QString("Grid/MetaGridSpacingY0%1").arg(viewportNumber);
QVariant strMsy = doc->getVariable(key, QVariant(), true);
metaSpacing.valid = true;
bool metaAutoX = !strMsx.isValid() || strMsx.toString()=="auto";
bool metaAutoY = !strMsy.isValid() || strMsy.toString()=="auto";
// meta grid spacing x:
if (!metaAutoX) {
// fixed:
double d = RMath::eval(strMsx.toString());
if (d>RS::PointTolerance) {
minMetaSpacing.x = metaSpacing.x = d;
}
}
// meta grid spacing y:
if (!metaAutoY) {
// fixed:
double d = RMath::eval(strMsy.toString());
if (d>RS::PointTolerance) {
minMetaSpacing.y = metaSpacing.y = d;
}
}
// auto scale grid:
QList<RVector> s = getIdealSpacing(minPixelSpacing, minSpacing, minMetaSpacing);
if (RSettings::getAutoScaleGrid()) {
autoSpacing = spacing = s.at(0);
}
if (RSettings::getAutoScaleMetaGrid()) {
autoMetaSpacing = metaSpacing = s.at(1);
}
// switch grid off below given pixel limit:
if (view.mapDistanceToView(spacing.x) < minPixelSpacing) {
spacing = RVector::invalid;
}
if (view.mapDistanceToView(metaSpacing.x) < minPixelSpacing) {
metaSpacing = RVector::invalid;
}
if (view.mapDistanceToView(spacing.y) < minPixelSpacing) {
spacing = RVector::invalid;
}
if (view.mapDistanceToView(metaSpacing.y) < minPixelSpacing) {
metaSpacing = RVector::invalid;
}
// qDebug() << "spacing: " << spacing;
// qDebug() << "minSpacing: " << minSpacing;
// qDebug() << "metaSpacing: " << metaSpacing;
// if (scaleGrid) {
// QList<RVector> s = ROrthoGrid::getIdealSpacing(view, minPixelSpacing, minSpacing);
// spacing = s.at(0);
// metaSpacing = s.at(1);
// } else {
// spacing = minSpacing;
// }
RVector minGridPoint;
RVector maxGridPoint;
spacing.z = 1;
if (isometric) {
spacing.x = spacing.y * 2.0 * sin(M_PI/3.0);
metaSpacing.x = metaSpacing.y * 2.0 * sin(M_PI/3.0);
spacing = spacing / 2;
//metaSpacing = metaSpacing / 2;
}
minGridPoint = viewBox.getCorner1();
minGridPoint = minGridPoint.getDividedComponents(spacing).getFloor();
minGridPoint = minGridPoint.getMultipliedComponents(spacing);
maxGridPoint = viewBox.getCorner2();
maxGridPoint = maxGridPoint.getDividedComponents(spacing).getCeil();
maxGridPoint = maxGridPoint.getMultipliedComponents(spacing);
minGridPoint.z = viewBox.getCorner1().z;
maxGridPoint.z = viewBox.getCorner2().z;
gridBox = RBox(minGridPoint, maxGridPoint);
minGridPoint = viewBox.getCorner1();
minGridPoint = minGridPoint.getDividedComponents(metaSpacing).getFloor();
minGridPoint = minGridPoint.getMultipliedComponents(metaSpacing);
maxGridPoint = viewBox.getCorner2();
maxGridPoint = maxGridPoint.getDividedComponents(metaSpacing).getCeil();
maxGridPoint = maxGridPoint.getMultipliedComponents(metaSpacing);
minGridPoint.z = viewBox.getCorner1().z;
maxGridPoint.z = viewBox.getCorner2().z;
metaGridBox = RBox(minGridPoint, maxGridPoint);
if (isometric) {
QString i1 = RUnit::getLabel(spacing.x / cos(M_PI/6), *doc, true, true);
QString i2 = RUnit::getLabel(metaSpacing.x / cos(M_PI/6) / 2, *doc, true, true);
infoText = QString("%1 < %2").arg(i1).arg(i2);
}
else {
QString i1 = RUnit::getLabel(spacing.x, *doc, true, true);
QString i2 = RUnit::getLabel(metaSpacing.x, *doc, true, true);
infoText = QString("%1 < %2").arg(i1).arg(i2);
}
}
