void Spectrogram::updateLabels(QPainter *p, const QwtScaleMap &, const QwtScaleMap &,
const QwtRasterData::ContourLines &contourLines) const
{
QwtValueList levels = contourLevels();
const int numLevels = levels.size();
int x_axis = xAxis();
int y_axis = yAxis();
for (int l = 0; l < numLevels; l++){
const double level = levels[l];
const QPolygonF &lines = contourLines[level];
if (lines.isEmpty())
continue;
PlotMarker *mrk = d_labels_list[l];
if (!mrk)
return;
QSize size = mrk->label().textSize();
int dx = int((d_labels_x_offset + mrk->xLabelOffset())*0.01*size.height());
int dy = -int(((d_labels_y_offset + mrk->yLabelOffset())*0.01 + 0.5)*size.height());
int i = (int)lines.size()/2;
double x = lines[i].x();
double y = lines[i].y();
int x2 = d_graph->transform(x_axis, x) + dx;
int y2 = d_graph->transform(y_axis, y) + dy;
if (p->device()->logicalDpiX() == plot()->logicalDpiX() ||
p->device()->logicalDpiY() == plot()->logicalDpiY())
mrk->setValue(d_graph->invTransform(x_axis, x2),
d_graph->invTransform(y_axis, y2));
}
}
Spectrogram* Spectrogram::copy(Graph *g)
{
Spectrogram *new_s = new Spectrogram(g, matrix());
new_s->setDisplayMode(QwtPlotSpectrogram::ImageMode, testDisplayMode(QwtPlotSpectrogram::ImageMode));
new_s->setDisplayMode(QwtPlotSpectrogram::ContourMode, testDisplayMode(QwtPlotSpectrogram::ContourMode));
new_s->setCustomColorMap(color_map);
new_s->setAxis(xAxis(), yAxis());
new_s->setDefaultContourPen(defaultContourPen());
new_s->color_map_policy = color_map_policy;
new_s->d_show_labels = d_show_labels;
new_s->d_labels_angle = d_labels_angle;
new_s->d_labels_color = d_labels_color;
new_s->d_white_out_labels = d_white_out_labels;
new_s->d_labels_font = d_labels_font;
new_s->d_labels_x_offset = d_labels_x_offset;
new_s->d_labels_y_offset = d_labels_y_offset;
new_s->setContourLevels(contourLevels());
if (defaultContourPen().style() == Qt::NoPen && !d_color_map_pen)
new_s->setContourPenList(d_pen_list);
else
new_s->d_color_map_pen = d_color_map_pen;
QList <PlotMarker *> lst = new_s->labelsList();
int count = lst.size();
for(int i = 0; i < count; i++){
PlotMarker *m = lst[i];
PlotMarker *mrk = d_labels_list[i];
if (m && mrk)
m->setLabelOffset(mrk->xLabelOffset(), mrk->yLabelOffset());
}
return new_s;
}