updating_scroll_(false),
sticky_scrolling_(false), // Default setting is set in MainWindow::setup_ui()
always_zoom_to_fit_(false),
- tick_period_(0.0),
+ tick_period_(0),
tick_prefix_(pv::util::SIPrefix::yocto),
tick_precision_(0),
time_unit_(util::TimeUnit::Time),
return scale_;
}
+void View::set_scale(double scale)
+{
+ if (scale_ != scale) {
+ scale_ = scale;
+ Q_EMIT scale_changed();
+ }
+}
+
const Timestamp& View::offset() const
{
return offset_;
}
+void View::set_offset(const pv::util::Timestamp& offset)
+{
+ if (offset_ != offset) {
+ offset_ = offset;
+ Q_EMIT offset_changed();
+ }
+}
+
int View::owner_visual_v_offset() const
{
return -verticalScrollBar()->sliderPosition();
return tick_prefix_;
}
+void View::set_tick_prefix(pv::util::SIPrefix tick_prefix)
+{
+ if (tick_prefix_ != tick_prefix) {
+ tick_prefix_ = tick_prefix;
+ Q_EMIT tick_prefix_changed();
+ }
+}
+
unsigned int View::tick_precision() const
{
return tick_precision_;
}
-double View::tick_period() const
+void View::set_tick_precision(unsigned tick_precision)
+{
+ if (tick_precision_ != tick_precision) {
+ tick_precision_ = tick_precision;
+ Q_EMIT tick_precision_changed();
+ }
+}
+
+const pv::util::Timestamp& View::tick_period() const
{
return tick_period_;
}
+void View::set_tick_period(const pv::util::Timestamp& tick_period)
+{
+ if (tick_period_ != tick_period) {
+ tick_period_ = tick_period;
+ Q_EMIT tick_period_changed();
+ }
+}
+
TimeUnit View::time_unit() const
{
return time_unit_;
}
+void View::set_time_unit(pv::util::TimeUnit time_unit)
+{
+ if (time_unit_ != time_unit) {
+ time_unit_ = time_unit;
+ Q_EMIT time_unit_changed();
+ }
+}
+
void View::zoom(double steps)
{
zoom(steps, viewport_->width() / 2);
}
}
- scale_ = scale;
- offset_ = offset;
+ set_scale(scale);
+ set_offset(offset);
calculate_tick_spacing();
update_scroll();
ruler_->update();
viewport_->update();
- scale_offset_changed();
}
set< shared_ptr<SignalData> > View::get_visible_data() const
QFontMetrics m(QApplication::font());
+ // Copies of the member variables with the same name, used in the calculation
+ // and written back afterwards, so that we don't emit signals all the time
+ // during the calculation.
+ pv::util::Timestamp tick_period = tick_period_;
+ pv::util::SIPrefix tick_prefix = tick_prefix_;
+ unsigned tick_precision = tick_precision_;
+
do {
const double min_period = scale_ * min_width;
const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10.0, order);
+ const pv::util::Timestamp order_decimal =
+ pow(pv::util::Timestamp(10), order);
// Allow for a margin of error so that a scale unit of 1 can be used.
// Otherwise, for a SU of 1 the tick period will almost always be below
unsigned int unit = 0;
do {
- tp_with_margin = order_decimal * (ScaleUnits[unit++] + tp_margin);
+ tp_with_margin = order_decimal.convert_to<double>() *
+ (ScaleUnits[unit++] + tp_margin);
} while (tp_with_margin < min_period && unit < countof(ScaleUnits));
- tick_period_ = order_decimal * ScaleUnits[unit - 1];
- tick_prefix
_ = static_cast<pv::util::SIPrefix>(
+ tick_period = order_decimal * ScaleUnits[unit - 1];
+ tick_prefix = static_cast<pv::util::SIPrefix>(
(order - pv::util::exponent(pv::util::SIPrefix::yocto)) / 3);
// Precision is the number of fractional digits required, not
// taking the prefix into account (and it must never be negative)
- tick_precision_ = std::max((int)ceil(log10f(1 / tick_period_)), 0);
+ tick_precision = std::max(ceil(log10(1 / tick_period)).convert_to<int>(), 0);
- tick_period_width = tick_period_ / scale_;
+ tick_period_width = (tick_period / scale_).convert_to<double>();
const QString label_text =
- format_time(max_time, tick_prefix_, time_unit_, tick_precision_);
+ format_time(max_time, tick_prefix, time_unit_, tick_precision);
label_width = m.boundingRect(0, 0, INT_MAX, INT_MAX,
Qt::AlignLeft | Qt::AlignTop, label_text).width() +
MinValueSpacing;
min_width += SpacingIncrement;
-
} while (tick_period_width < label_width);
+
+ set_tick_period(tick_period);
+ set_tick_prefix(tick_prefix);
+ set_tick_precision(tick_precision);
}
void View::update_scroll()
get_scroll_layout(length, offset);
length = max(length - areaSize.width(), 0.0);
- int major_tick_distance = tick_period_ / scale_;
+ int major_tick_distance = (tick_period_ / scale_).convert_to<int>();
horizontalScrollBar()->setPageStep(areaSize.width() / 2);
horizontalScrollBar()->setSingleStep(major_tick_distance);
const vector< shared_ptr<Segment> > segments = data->segments();
if (!segments.empty())
if (segments[0]->samplerate()) {
- time_unit_ = util::TimeUnit::Time;
+ set_time_unit(util::TimeUnit::Time);
break;
}
}
const int range = horizontalScrollBar()->maximum();
if (range < MaxScrollValue)
- offset_ = scale_ * value;
+ set_offset(scale_ * value);
else {
double length = 0;
Timestamp offset;
get_scroll_layout(length, offset);
- offset_ = scale_ * length * value / MaxScrollValue;
+ set_offset(scale_ * length * value / MaxScrollValue);
}
ruler_->update();
void View::capture_state_updated(int state)
{
if (state == Session::Running)
- time_unit_ = util::TimeUnit::Samples;
+ set_time_unit(util::TimeUnit::Samples);
if (state == Session::Stopped) {
// After acquisition has stopped we need to re-calculate the ticks once
const QSize areaSize = viewport_->size();
length = max(length - areaSize.width(), 0.0);
- offset_ = scale_ * length;
+ set_offset(scale_ * length);
}
determine_time_unit();
projects / pulseview.git / blobdiff