#include <libsigrokdecode/libsigrokdecode.h>
#endif
+#include <extdef.h>
+
#include <cassert>
#include <climits>
#include <cmath>
#include <mutex>
#include <unordered_set>
+#include <QApplication>
#include <QEvent>
+#include <QFontMetrics>
#include <QMouseEvent>
#include <QScrollBar>
#include "view.hpp"
#include "viewport.hpp"
-#include "pv/sigsession.hpp"
+#include "pv/session.hpp"
#include "pv/data/logic.hpp"
-#include "pv/data/logicsnapshot.hpp"
+#include "pv/data/logicsegment.hpp"
+#include "pv/util.hpp"
using boost::shared_lock;
using boost::shared_mutex;
+
using pv::data::SignalData;
+using pv::data::Segment;
+using pv::util::format_time;
+
using std::back_inserter;
using std::deque;
using std::dynamic_pointer_cast;
const int View::MaxScrollValue = INT_MAX / 2;
+const int View::ScaleUnits[3] = {1, 2, 5};
+
const QColor View::CursorAreaColour(220, 231, 243);
const QSizeF View::LabelPadding(4, 0);
offset_(0),
v_offset_(0),
updating_scroll_(false),
+ tick_period_(0.0),
+ tick_prefix_(0),
show_cursors_(false),
- cursors_(*this),
+ cursors_(new CursorPair(*this)),
hover_point_(-1, -1)
{
connect(horizontalScrollBar(), SIGNAL(valueChanged(int)),
connect(&session_, SIGNAL(frame_ended()),
this, SLOT(data_updated()));
- connect(cursors_.first().get(), SIGNAL(time_changed()),
- this, SLOT(marker_time_changed()));
- connect(cursors_.second().get(), SIGNAL(time_changed()),
- this, SLOT(marker_time_changed()));
-
connect(header_, SIGNAL(signals_moved()),
this, SLOT(on_signals_moved()));
// make sure the transparent widgets are on the top
cursorheader_->raise();
header_->raise();
+
+ // Update the zoom state
+ calculate_tick_spacing();
}
Session& View::session()
return viewport_;
}
+vector< shared_ptr<TimeItem> > View::time_items() const
+{
+ vector< shared_ptr<TimeItem> > items;
+ items.push_back(cursors_);
+ items.push_back(cursors_->first());
+ items.push_back(cursors_->second());
+ return items;
+}
+
double View::scale() const
{
return scale_;
return 0;
}
+unsigned int View::tick_prefix() const
+{
+ return tick_prefix_;
+}
+
+double View::tick_period() const
+{
+ return tick_period_;
+}
+
void View::zoom(double steps)
{
zoom(steps, viewport_->width() / 2);
double samplerate = 0.0;
for (const shared_ptr<SignalData> d : visible_data) {
assert(d);
- samplerate = max(samplerate, d->samplerate());
+ const vector< shared_ptr<Segment> > segments =
+ d->segments();
+ for (const shared_ptr<Segment> &s : segments)
+ samplerate = max(samplerate, s->samplerate());
}
if (samplerate == 0.0)
scale_ = scale;
offset_ = offset;
+ calculate_tick_spacing();
+
update_scroll();
ruler_->update();
cursorheader_->update();
pair<double, double> View::get_time_extents() const
{
- const set< shared_ptr<SignalData> > visible_data = get_visible_data();
- if (visible_data.empty())
- return make_pair(0.0, 0.0);
-
double left_time = DBL_MAX, right_time = DBL_MIN;
+ const set< shared_ptr<SignalData> > visible_data = get_visible_data();
for (const shared_ptr<SignalData> d : visible_data)
{
- const double start_time = d->get_start_time();
- double samplerate = d->samplerate();
- samplerate = (samplerate <= 0.0) ? 1.0 : samplerate;
-
- left_time = min(left_time, start_time);
- right_time = max(right_time, start_time +
- d->get_max_sample_count() / samplerate);
+ const vector< shared_ptr<Segment> > segments =
+ d->segments();
+ for (const shared_ptr<Segment> &s : segments) {
+ double samplerate = s->samplerate();
+ samplerate = (samplerate <= 0.0) ? 1.0 : samplerate;
+
+ const double start_time = s->start_time();
+ left_time = min(left_time, start_time);
+ right_time = max(right_time, start_time +
+ d->get_max_sample_count() / samplerate);
+ }
}
+ if (left_time == DBL_MAX && right_time == DBL_MIN)
+ return make_pair(0.0, 0.0);
+
assert(left_time < right_time);
return make_pair(left_time, right_time);
}
void View::centre_cursors()
{
const double time_width = scale_ * viewport_->width();
- cursors_.first()->set_time(offset_ + time_width * 0.4);
- cursors_.second()->set_time(offset_ + time_width * 0.6);
+ cursors_->first()->set_time(offset_ + time_width * 0.4);
+ cursors_->second()->set_time(offset_ + time_width * 0.6);
cursorheader_->update();
viewport_->update();
}
-CursorPair& View::cursors()
-{
- return cursors_;
-}
-
-const CursorPair& View::cursors() const
+std::shared_ptr<CursorPair> View::cursors() const
{
return cursors_;
}
set_scale_offset(new_scale, new_offset);
}
+void View::calculate_tick_spacing()
+{
+ const double SpacingIncrement = 32.0f;
+ const double MinValueSpacing = 32.0f;
+
+ double min_width = SpacingIncrement, typical_width;
+
+ QFontMetrics m(QApplication::font());
+
+ do {
+ const double min_period = scale_ * min_width;
+
+ const int order = (int)floorf(log10f(min_period));
+ const double order_decimal = pow(10.0, order);
+
+ unsigned int unit = 0;
+
+ do {
+ tick_period_ = order_decimal * ScaleUnits[unit++];
+ } while (tick_period_ < min_period &&
+ unit < countof(ScaleUnits));
+
+ tick_prefix_ = (order - pv::util::FirstSIPrefixPower) / 3;
+
+ typical_width = m.boundingRect(0, 0, INT_MAX, INT_MAX,
+ Qt::AlignLeft | Qt::AlignTop,
+ format_time(offset_, tick_prefix_)).width() +
+ MinValueSpacing;
+
+ min_width += SpacingIncrement;
+
+ } while(typical_width > tick_period_ / scale_);
+}
+
void View::update_scroll()
{
assert(viewport_);
get_scroll_layout(length, offset);
length = max(length - areaSize.width(), 0.0);
+ int major_tick_distance = tick_period_ / scale_;
+
horizontalScrollBar()->setPageStep(areaSize.width() / 2);
+ horizontalScrollBar()->setSingleStep(major_tick_distance);
updating_scroll_ = true;
// Set the vertical scrollbar
verticalScrollBar()->setPageStep(areaSize.height());
+ verticalScrollBar()->setSingleStep(areaSize.height() / 8);
const pair<int, int> extents = v_extents();
- const int extra_scroll_height = (extents.second - extents.first) / 4;
- verticalScrollBar()->setRange(extents.first - extra_scroll_height,
- extents.first + extra_scroll_height);
+ verticalScrollBar()->setRange(extents.first - (areaSize.height() / 2),
+ extents.second - (areaSize.height() / 2));
}
void View::update_layout()
update_scroll();
}
-void View::paint_label(QPainter &p, int right, bool hover)
+void View::paint_label(QPainter &p, const QRect &rect, bool hover)
{
(void)p;
- (void)right;
+ (void)rect;
(void)hover;
}
-QRectF View::label_rect(int right)
+QRectF View::label_rect(const QRectF &rect)
{
- (void)right;
+ (void)rect;
return QRectF();
}
update_layout();
}
-void View::appearance_changed(bool label, bool content)
+void View::row_item_appearance_changed(bool label, bool content)
{
if (label)
header_->update();
viewport_->update();
}
+void View::time_item_appearance_changed(bool label, bool content)
+{
+ if (label)
+ cursorheader_->update();
+ if (content)
+ viewport_->update();
+}
+
void View::extents_changed(bool horz, bool vert)
{
sticky_events_ |=
- (horz ? SelectableItemHExtentsChanged : 0) |
- (vert ? SelectableItemVExtentsChanged : 0);
+ (horz ? RowItemHExtentsChanged : 0) |
+ (vert ? RowItemVExtentsChanged : 0);
lazy_event_handler_.start();
}
viewport_->update();
}
-void View::marker_time_changed()
-{
- cursorheader_->update();
- viewport_->update();
-}
-
void View::on_signals_moved()
{
update_scroll();
void View::process_sticky_events()
{
- if (sticky_events_ & SelectableItemHExtentsChanged)
+ if (sticky_events_ & RowItemHExtentsChanged)
update_layout();
- if (sticky_events_ & SelectableItemVExtentsChanged)
+ if (sticky_events_ & RowItemVExtentsChanged)
restack_all_row_items();
// Clear the sticky events
projects / pulseview.git / blobdiff