Qt_widget::Qt_widget(QWidget *parent, const char *name) :
QWidget(parent, name), set_scales_to_be_done(false), Locked(0),
_pointSize(4), _pointStyle(DISC)
{
setCaption("CGAL::Qt_widget");
// initialize ranges and scales
xmin_old = xmin = -1;
xmax_old = xmax = 1;
ymin_old = ymin = -1;
ymax_old = ymax = 1;
constranges=false;
set_scales();
emit(rangesChanged());
// initialize the pixmap and the painter
painter = new QPainter;
printer = new QPrinter;
pixmap = new QPixmap;
matrix = new QWMatrix;
pixmap->resize(size());
painter->begin(pixmap);
painter->setWorldMatrix(*matrix);
// set properties
painter->setRasterOp(CopyROP);
setBackgroundColor(Qt::white);
painter->setPen(QPen(Qt::black,2));
clear();
}
void QSLPlotArea::addPlotable(QSLPlotable *plt)
{
if (mPlots.size() == 0) {
mXminData = plt->xMin();
mXmaxData = plt->xMax();
mYminData = plt->yMin();
mYmaxData = plt->yMax();
} else {
if (plt->xMin() < mXminData) mXminData = plt->xMin();
if (plt->xMax() > mXmaxData) mXmaxData = plt->xMax();
if (plt->yMin() < mYminData) mYminData = plt->yMin();
if (plt->yMax() > mYmaxData) mYmaxData = plt->yMax();
}
QObject::connect(plt, SIGNAL(appearenceChanged()), this, SLOT(repaint()));
QObject::connect(plt, SIGNAL(dataChanged()), this, SLOT(replot()));
QObject::connect(plt, SIGNAL(rangesChanged()), this, SLOT(rescale()));
plt->mParentPlot = this;
mPlots.append(plt);
setXrange(mXminData,mXmaxData);
setYrange(mYminData,mYmaxData);
emit plotsChanged();
}
void Qt_widget::move_center(const double distx, const double disty)
{
xmin += distx; xmin_old += distx;
xmax += distx; xmax_old += distx;
ymin += disty; ymin_old += disty;
ymax += disty; ymax_old += disty;
redraw();
emit(rangesChanged());
}
void QSLPlotCartesianSet::updateDataBounds()
{
mXmin = mXmax = mX[0];
mYmin = mYmax = mY[0];
for (int i=0; i<mX.size(); i++) {
if (mX[i] < mXmin) mXmin=mX[i];
if (mX[i] > mXmax) mXmax=mX[i];
if (mY[i] < mYmin) mYmin=mY[i];
if (mY[i] > mYmax) mYmax=mY[i];
}
emit rangesChanged();
}
void Qt_widget::set_window(const double x_min, const double x_max,
const double y_min, const double y_max,
bool const_ranges)
{
xmin_old = xmin = x_min;
xmax_old = xmax = x_max;
ymin_old = ymin = y_min;
ymax_old = ymax = y_max;
constranges = const_ranges;
set_scales();
redraw();
emit(rangesChanged());
}
Qt_widget_history::Qt_widget_history(Qt_widget* parent, const char* name):
QObject(parent, name), widget(parent)
{
it = history_list.begin();
connect(widget, SIGNAL(rangesChanged()),
this, SLOT(save()));
// backward compatibility with CGAL-2.4
connect(parent, SIGNAL(internal_back()),
this, SLOT(backward()));
connect(parent, SIGNAL(internal_forth()),
this, SLOT(forward()));
connect(parent, SIGNAL(internal_add_to_history()),
this, SLOT(save()));
connect(parent, SIGNAL(internal_clear_history()),
this, SLOT(clear()));
};
void Qt_widget::set_center(const double x, const double y)
{
if (set_scales_to_be_done) return;
if(xscal<1) {
xmin = x - (int)(width()/xscal)/2;
xmax = x + (int)(width()/xscal)/2;
ymin = y - (int)(height()/yscal)/2;
ymax = y + (int)(height()/yscal)/2;
} else {
xmin = x - (width()/xscal)/2;
xmax = x + (width()/xscal)/2;
ymin = y - (height()/yscal)/2;
ymax = y + (height()/yscal)/2;
}
xmin_old = xmin;
xmax_old = xmax;
ymin_old = ymin;
ymax_old = ymax;
redraw();
emit(rangesChanged());
}
