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));
}
}
void Spectrogram::createLabels()
{
clearLabels();
QwtValueList levels = contourLevels();
const int numLevels = levels.size();
for (int l = 0; l < numLevels; l++){
PlotMarker *m = new PlotMarker(l, d_labels_angle);
QwtText t = QwtText(QString::number(levels[l]));
t.setColor(d_labels_color);
t.setFont(d_labels_font);
if (d_white_out_labels)
t.setBackgroundBrush(QBrush(Qt::white));
else
t.setBackgroundBrush(QBrush(Qt::transparent));
m->setLabel(t);
int x_axis = xAxis();
int y_axis = yAxis();
m->setAxis(x_axis, y_axis);
if (d_graph && d_show_labels)
m->attach(d_graph);
d_labels_list << m;
}
}
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;
}
void QwtHistogram::loadLabels()
{
clearLabels();
int size = this->dataSize();
if (!size)
return;
QwtPlot *d_plot = plot();
if (!d_plot)
return;
int index = 0;
for (int i = 0; i < size; i++){
PlotMarker *m = new PlotMarker(index, d_labels_angle);
QwtText t = QwtText(QString::number(y(i)));
t.setColor(d_labels_color);
t.setFont(d_labels_font);
if (d_white_out_labels)
t.setBackgroundBrush(QBrush(Qt::white));
else
t.setBackgroundBrush(QBrush(Qt::transparent));
m->setLabel(t);
int x_axis = xAxis();
int y_axis = yAxis();
m->setAxis(x_axis, y_axis);
QSize size = t.textSize();
int dx = int(d_labels_x_offset*0.01*size.height());
int dy = -int((d_labels_y_offset*0.01 + 0.5)*size.height());
int x2 = d_plot->transform(x_axis, x(index)) + dx;
int y2 = d_plot->transform(y_axis, y(index)) + dy;
switch(d_labels_align){
case Qt::AlignLeft:
break;
case Qt::AlignHCenter:
x2 -= size.width()/2;
break;
case Qt::AlignRight:
x2 -= size.width();
break;
}
m->setXValue(d_plot->invTransform(x_axis, x2));
m->setYValue(d_plot->invTransform(y_axis, y2));
m->attach(d_plot);
d_labels_list << m;
index++;
}
d_show_labels = true;
}
void DataCurve::loadLabels()
{
if (!validCurveType())
return;
clearLabels();
int xcol = d_table->colIndex(d_x_column);
int ycol = d_table->colIndex(title().text());
int labelsCol = d_table->colIndex(d_labels_column);
int cols = d_table->numCols();
if (xcol < 0 || ycol < 0 || labelsCol < 0 ||
xcol >= cols || ycol >= cols || labelsCol >= cols)
return;
QwtPlot *d_plot = plot();
if (!d_plot)
return;
int index = 0;
for (int i = d_start_row; i <= d_end_row; i++) {
if (d_table->text(i, xcol).isEmpty() ||
d_table->text(i, ycol).isEmpty())
continue;
PlotMarker *m = new PlotMarker(index, d_labels_angle);
QwtText t = QwtText(d_table->text(i, labelsCol));
t.setColor(d_labels_color);
t.setFont(d_labels_font);
if (d_white_out_labels)
t.setBackgroundBrush(QBrush(Qt::white));
else
t.setBackgroundBrush(QBrush(Qt::transparent));
m->setLabel(t);
int x_axis = xAxis();
int y_axis = yAxis();
m->setAxis(x_axis, y_axis);
QSize size = t.textSize();
int dx = int(d_labels_x_offset*0.01*size.height());
int dy = -int((d_labels_y_offset*0.01 + 0.5)*size.height());
int x2 = d_plot->transform(x_axis, x(index)) + dx;
int y2 = d_plot->transform(y_axis, y(index)) + dy;
switch(d_labels_align) {
case Qt::AlignLeft:
break;
case Qt::AlignHCenter:
x2 -= size.width()/2;
break;
case Qt::AlignRight:
x2 -= size.width();
break;
}
m->setXValue(d_plot->invTransform(x_axis, x2));
m->setYValue(d_plot->invTransform(y_axis, y2));
m->attach(d_plot);
d_labels_list << m;
index++;
}
d_show_labels = true;
}