Add a spin box widget for timestamp values
[pulseview.git] / pv / view / timemarker.cpp
index 8474791d485a31f888b1b68aa47b5b98617425c8..8c136a18189285e3a965af58e49ad0642f002b87 100644 (file)
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include "timemarker.h"
+#include <algorithm>
 
-#include "view.h"
+#include <extdef.h>
 
+#include "timemarker.hpp"
+
+#include "view.hpp"
+#include "pv/widgets/timestampspinbox.hpp"
+
+#include <QApplication>
+#include <QFormLayout>
+#include <QFontMetrics>
 #include <QPainter>
 
+#include <pv/widgets/popup.hpp>
+
+using std::max;
+using std::min;
+
 namespace pv {
 namespace view {
 
-TimeMarker::TimeMarker(const View &view, const QColor &colour,
-       double time) :
-       _view(view),
-       _colour(colour),
-       _time(time)
+const int TimeMarker::ArrowSize = 4;
+
+TimeMarker::TimeMarker(
+       View &view, const QColor &colour, const pv::util::Timestamp& time) :
+       TimeItem(view),
+       colour_(colour),
+       time_(time),
+       value_action_(nullptr),
+       value_widget_(nullptr),
+       updating_value_widget_(false)
 {
 }
 
-TimeMarker::TimeMarker(const TimeMarker &s) :
-       QObject(),
-       _view(s._view),
-       _colour(s._colour),
-       _time(s._time)
+const pv::util::Timestamp& TimeMarker::time() const
 {
+       return time_;
 }
 
-double TimeMarker::time() const
+void TimeMarker::set_time(const pv::util::Timestamp& time)
 {
-       return _time;
+       time_ = time;
+
+       if (value_widget_) {
+               updating_value_widget_ = true;
+               value_widget_->setValue(time);
+               updating_value_widget_ = false;
+       }
+
+       view_.time_item_appearance_changed(true, true);
 }
 
-void TimeMarker::set_time(double time)
+float TimeMarker::get_x() const
 {
-       _time = time;
-       time_changed();
+       return ((time_ - view_.offset()) / view_.scale()).convert_to<float>();
+}
+
+QPoint TimeMarker::point(const QRect &rect) const
+{
+       return QPoint(get_x(), rect.bottom());
+}
+
+QRectF TimeMarker::label_rect(const QRectF &rect) const
+{
+       QFontMetrics m(QApplication::font());
+       const QSizeF text_size(
+               max(m.boundingRect(get_text()).size().width(), ArrowSize),
+               m.height());
+       const QSizeF label_size(text_size + LabelPadding * 2);
+       const float top = rect.height() - label_size.height() -
+               TimeMarker::ArrowSize - 0.5f;
+       const float x = get_x();
+
+       return QRectF(QPointF(x - label_size.width() / 2, top), label_size);
+}
+
+QRectF TimeMarker::hit_box_rect(const QRectF &rect) const
+{
+       const float x = get_x();
+       const float h = QFontMetrics(QApplication::font()).height();
+       return QRectF(x - h / 2.0f, rect.top(), h, rect.height());
+}
+
+void TimeMarker::paint_label(QPainter &p, const QRect &rect, bool hover)
+{
+       if (!enabled())
+               return;
+
+       const qreal x = ((time_ - view_.offset()) / view_.scale()).convert_to<qreal>();
+       const QRectF r(label_rect(rect));
+
+       const QPointF points[] = {
+               r.topLeft(),
+               r.bottomLeft(),
+               QPointF(max(r.left(), x - ArrowSize), r.bottom()),
+               QPointF(x, rect.bottom()),
+               QPointF(min(r.right(), x + ArrowSize), r.bottom()),
+               r.bottomRight(),
+               r.topRight()
+       };
+
+       const QPointF highlight_points[] = {
+               QPointF(r.left() + 1, r.top() + 1),
+               QPointF(r.left() + 1, r.bottom() - 1),
+               QPointF(max(r.left() + 1, x - ArrowSize), r.bottom() - 1),
+               QPointF(min(max(r.left() + 1, x), r.right() - 1),
+                       rect.bottom() - 1),
+               QPointF(min(r.right() - 1, x + ArrowSize), r.bottom() - 1),
+               QPointF(r.right() - 1, r.bottom() - 1),
+               QPointF(r.right() - 1, r.top() + 1),
+       };
+
+       if (selected()) {
+               p.setPen(highlight_pen());
+               p.setBrush(Qt::transparent);
+               p.drawPolygon(points, countof(points));
+       }
+
+       p.setPen(Qt::transparent);
+       p.setBrush(hover ? colour_.lighter() : colour_);
+       p.drawPolygon(points, countof(points));
+
+       p.setPen(colour_.lighter());
+       p.setBrush(Qt::transparent);
+       p.drawPolygon(highlight_points, countof(highlight_points));
+
+       p.setPen(colour_.darker());
+       p.setBrush(Qt::transparent);
+       p.drawPolygon(points, countof(points));
+
+       p.setPen(select_text_colour(colour_));
+       p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter, get_text());
+}
+
+void TimeMarker::paint_fore(QPainter &p, const ViewItemPaintParams &pp)
+{
+       if (!enabled())
+               return;
+
+       const float x = get_x();
+       p.setPen(colour_.darker());
+       p.drawLine(QPointF(x, pp.top()), QPointF(x, pp.bottom()));
+}
+
+pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent)
+{
+       using pv::widgets::Popup;
+
+       Popup *const popup = new Popup(parent);
+       popup->set_position(parent->mapToGlobal(
+               point(parent->rect())), Popup::Bottom);
+
+       QFormLayout *const form = new QFormLayout(popup);
+       popup->setLayout(form);
+
+       value_widget_ = new pv::widgets::TimestampSpinBox(parent);
+       value_widget_->setValue(time_);
+
+       connect(value_widget_, SIGNAL(valueChanged(const pv::util::Timestamp&)),
+               this, SLOT(on_value_changed(const pv::util::Timestamp&)));
+
+       form->addRow(tr("Time"), value_widget_);
+
+       return popup;
 }
 
-void TimeMarker::paint(QPainter &p, const QRect &rect)
+void TimeMarker::on_value_changed(const pv::util::Timestamp& value)
 {
-       const float x = (_time - _view.offset()) / _view.scale();
-       p.setPen(_colour);
-       p.drawLine(QPointF(x, rect.top()), QPointF(x, rect.bottom()));
+       if (!updating_value_widget_)
+               set_time(value);
 }
 
 } // namespace view