void CircleCreateOperation::on_drawEvent(const DrawEvent& event) {
bool s = property("hasStartPoint").toBool();
bool e = property("hasEndPoint").toBool();
// For drawing we should create a interface to teh drawitems in the viewer so we always
// draw something exactly like how the final drawing classes will draw entities
if (s == true && e == false) {
event.painter()->drawLine(_startPoint.pointF(), _lastSnapEvent.snapPoint().pointF());
double r = (lc::geo::Coordinate(_startPoint) - lc::geo::Coordinate(_lastSnapEvent.snapPoint())).magnitude();
event.painter()->drawEllipse(_startPoint.pointF(), r, r);
}
if (s == true && e == true) {
double r = (lc::geo::Coordinate(_startPoint) - lc::geo::Coordinate(_endPoint)).magnitude();
event.painter()->drawEllipse(_startPoint.pointF(), r, r);
}
}
void DragPoints::onDraw(DrawEvent const &event) const {
double x = _size;
double y = _size;
double zeroCornerX = 0.;
double zeroCornerY = 0.;
event.painter().device_to_user(&zeroCornerX, &zeroCornerY);
event.painter().device_to_user(&x, &y);
double size = (x - zeroCornerX);
event.painter().source_rgb(255, 255, 255);
for(auto point : _points) {
event.painter().rectangle(point.x() - size / 2, point.y() - size / 2, size, size);
}
event.painter().stroke();
}
void Grid::draw(DrawEvent const & event) const {
LcPainter &painter = event.painter();
const lc::geo::Area &updateRect = event.updateRect();
painter.save();
painter.disable_antialias();
double zeroCornerX = 0.;
double zeroCornerY = 0.;
painter.device_to_user(&zeroCornerX, &zeroCornerY);
double gridSPacingX = _minimumGridSpacing;
double gridSPacingY = _minimumGridSpacing;
painter.device_to_user(&gridSPacingX, &gridSPacingY);
// This brings the distance always between 10 and 100, need to have some math behind this
double minDistancePoints = gridSPacingX - zeroCornerX;
double factor = 1.0;
while (minDistancePoints < 10.0 * (1/_convUnit)) {
minDistancePoints *= 10.0 * (1/_convUnit);
factor = factor * 10.0 * (1/_convUnit);
}
while (minDistancePoints > 100.0 * (1/_convUnit)) {
minDistancePoints = minDistancePoints / 10.0 * (1/_convUnit);
factor = factor / 10.0 * (1/_convUnit);
}
// determine the grid spacing
double gridSize;
if (minDistancePoints < 10.0 * (1/_convUnit)) {
gridSize = (10.0 * (1/_convUnit) / factor);
} else if (minDistancePoints < 20.0 * (1/_convUnit)) {
gridSize = (20.0 * (1/_convUnit) / factor);
} else if (minDistancePoints < 50.0 * (1/_convUnit)) {
gridSize = (50.0 * (1/_convUnit) / factor);
} else {
gridSize = (100.0 * (1/_convUnit) / factor);
}
// TODO: THis assignedment doesn't make the grid thread save!!!
// We have to fix that somehow or get rid of the snapPoints method
// Risck might be very low because the mouse can snap to one display anyways assuming we use one mouse per computer :s
_lastGridSize = gridSize;
// Major lines
double left = updateRect.minP().x() - fmod(updateRect.minP().x(), gridSize);
double top = updateRect.maxP().y() - fmod(updateRect.maxP().y(), gridSize);
painter.line_width(1);
for (double x = left; x < updateRect.maxP().x(); x += gridSize) {
painter.move_to(x, updateRect.maxP().y());
painter.line_to(x, updateRect.minP().y());
}
for (double y = top; y > updateRect.minP().y(); y -= gridSize) {
painter.move_to(updateRect.minP().x(), y);
painter.line_to(updateRect.maxP().x(), y);
}
painter.source_rgba(_majorColor.red(), _majorColor.green(), _majorColor.blue(), _majorColor.alpha());
painter.stroke();
// Draw minor lines
gridSize *= _numMinorLines;
left = updateRect.minP().x() - fmod(updateRect.minP().x(), gridSize);
top = updateRect.maxP().y() - fmod(updateRect.maxP().y(), gridSize);
for (double x = left; x < updateRect.maxP().x(); x += gridSize) {
painter.move_to(x, updateRect.maxP().y());
painter.line_to(x, updateRect.minP().y());
}
for (double y = top; y > updateRect.minP().y(); y -= gridSize) {
painter.move_to(updateRect.minP().x(), y);
painter.line_to(updateRect.maxP().x(), y);
}
painter.source_rgba(_minorColor.red(), _minorColor.green(), _minorColor.blue(), _minorColor.alpha());
painter.stroke();
painter.restore();
}
void Cursor::on_Draw_Event(const DrawEvent& event) {
double zeroCornerX = 0.;
double zeroCornerY = 0.;
event.painter()->device_to_user(&zeroCornerX, &zeroCornerY);
double gridSPacingX = _cursorSize;
double gridSPacingY = _cursorSize;
event.painter()->device_to_user(&gridSPacingX, &gridSPacingY);
double minDistancePoints = (gridSPacingX - zeroCornerX) / 2.0;
double x, y;
// If we had a snao point, move the mouse to that area
if (_lastSnapEvent.status() == true) {
x = _lastSnapEvent.snapPoint().x();
y = _lastSnapEvent.snapPoint().y();
} else {
x = event.mousePosition().x();
y = event.mousePosition().y();
}
event.painter()->save();
event.painter()->disable_antialias();
event.painter()->move_to(-minDistancePoints + x, y);
event.painter()->line_to(minDistancePoints + x, y);
event.painter()->source_rgba(_xAxisColor.redF(), _xAxisColor.greenF(), _xAxisColor.blueF(), _xAxisColor.alphaF());
event.painter()->stroke();
event.painter()->move_to(x, -minDistancePoints + y);
event.painter()->line_to(x, minDistancePoints + y);
event.painter()->source_rgba(_yAxisColor.redF(), _yAxisColor.greenF(), _yAxisColor.blueF(), _yAxisColor.alphaF());
event.painter()->stroke();
event.painter()->restore();
}