+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "cursorheader.h"
+
+#include "view.h"
+
+#include <QApplication>
+#include <QMouseEvent>
+
+#include <pv/widgets/popup.h>
+
+using std::shared_ptr;
+
+namespace pv {
+namespace view {
+
+const int CursorHeader::CursorHeaderHeight = 26;
+
+CursorHeader::CursorHeader(View &parent) :
+ MarginWidget(parent),
+ _dragging(false)
+{
+ setMouseTracking(true);
+}
+
+QSize CursorHeader::sizeHint() const
+{
+ return QSize(0, CursorHeaderHeight);
+}
+
+void CursorHeader::clear_selection()
+{
+ CursorPair &cursors = _view.cursors();
+ cursors.first()->select(false);
+ cursors.second()->select(false);
+ update();
+}
+
+void CursorHeader::paintEvent(QPaintEvent*)
+{
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+
+ // Draw the cursors
+ if (_view.cursors_shown()) {
+ _view.cursors().draw_markers(p, rect(), 0); //prefix);
+ }
+}
+
+void CursorHeader::mouseMoveEvent(QMouseEvent *e)
+{
+ if (!(e->buttons() & Qt::LeftButton))
+ return;
+
+ if ((e->pos() - _mouse_down_point).manhattanLength() <
+ QApplication::startDragDistance())
+ return;
+
+ _dragging = true;
+
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
+ m->set_time(_view.offset() +
+ ((double)e->x() + 0.5) * _view.scale());
+}
+
+void CursorHeader::mousePressEvent(QMouseEvent *e)
+{
+ if (e->buttons() & Qt::LeftButton) {
+ _mouse_down_point = e->pos();
+
+ _grabbed_marker.reset();
+
+ clear_selection();
+
+ if (_view.cursors_shown()) {
+ CursorPair &cursors = _view.cursors();
+ if (cursors.first()->get_label_rect(
+ rect()).contains(e->pos()))
+ _grabbed_marker = cursors.first();
+ else if (cursors.second()->get_label_rect(
+ rect()).contains(e->pos()))
+ _grabbed_marker = cursors.second();
+ }
+
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
+ m->select();
+
+ selection_changed();
+ }
+}
+
+void CursorHeader::mouseReleaseEvent(QMouseEvent *)
+{
+ using pv::widgets::Popup;
+
+ if (!_dragging)
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock()) {
+ Popup *const p = m->create_popup(&_view);
+ p->set_position(mapToGlobal(QPoint(m->get_x(),
+ height())), Popup::Bottom);
+ p->show();
+ }
+
+ _dragging = false;
+ _grabbed_marker.reset();
+}
+
+} // namespace view
+} // namespace pv