X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fcursorheader.cpp;h=c324410a75cb873aaed571cea402f23981ad36ec;hp=d1660276417d65a79e42a628aeee87cfd92bc716;hb=650e2e5fd465119615b9b969d15cc9fb11f18aa4;hpb=84a0d458a4b04141dd45af6dec44d36782ee163e

diff --git a/pv/view/cursorheader.cpp b/pv/view/cursorheader.cpp
index d1660276..c324410a 100644
--- a/pv/view/cursorheader.cpp
+++ b/pv/view/cursorheader.cpp
@@ -18,39 +18,50 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include "cursorheader.h"
+#include "cursorheader.hpp"
 
-#include "view.h"
+#include "ruler.hpp"
+#include "view.hpp"
 
 #include <QApplication>
+#include <QFontMetrics>
 #include <QMouseEvent>
 
-#include <pv/widgets/popup.h>
+#include <pv/widgets/popup.hpp>
 
 using std::shared_ptr;
+using std::vector;
 
 namespace pv {
 namespace view {
 
-const int CursorHeader::CursorHeaderHeight = 26;
+const int CursorHeader::Padding = 20;
+const int CursorHeader::BaselineOffset = 5;
+
+int CursorHeader::calculateTextHeight()
+{
+	QFontMetrics fm(font());
+	return fm.boundingRect(0, 0, INT_MAX, INT_MAX,
+		Qt::AlignLeft | Qt::AlignTop, "8").height();
+}
 
 CursorHeader::CursorHeader(View &parent) :
 	MarginWidget(parent),
-	_dragging(false)
+	textHeight_(calculateTextHeight())
 {
 	setMouseTracking(true);
 }
 
 QSize CursorHeader::sizeHint() const
 {
-	return QSize(0, CursorHeaderHeight);
+	return QSize(0, textHeight_ + Padding + BaselineOffset);
 }
 
 void CursorHeader::clear_selection()
 {
-	CursorPair &cursors = _view.cursors();
-	cursors.first()->select(false);
-	cursors.second()->select(false);
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+	for (auto &i : items)
+		i->select(false);
 	update();
 }
 
@@ -59,49 +70,60 @@ 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);
-	}
+	// The cursor labels are not drawn with the arrows exactly on the
+	// bottom line of the widget, because then the selection shadow
+	// would be clipped away.
+	const QRect r = rect().adjusted(0, 0, 0, -BaselineOffset);
+
+	// Draw the items
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+	for (auto &m : items)
+		m->paint_label(p, r);
 }
 
 void CursorHeader::mouseMoveEvent(QMouseEvent *e)
 {
+	mouse_point_ = e->pos();
+
 	if (!(e->buttons() & Qt::LeftButton))
 		return;
 
-	if ((e->pos() - _mouse_down_point).manhattanLength() <
+	if ((e->pos() - mouse_down_point_).manhattanLength() <
 		QApplication::startDragDistance())
 		return;
 
-	_dragging = true;
+	// Do the drag
+	dragging_ = true;
 
-	if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
-		m->set_time(_view.offset() +
-			((double)e->x() + 0.5) * _view.scale());
+	const int delta = e->pos().x() - mouse_down_point_.x();
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+	for (auto &i : items)
+		if (i->dragging())
+			i->set_time(view_.offset() +
+				(i->drag_point().x() + delta - 0.5) *
+				view_.scale());
 }
 
 void CursorHeader::mousePressEvent(QMouseEvent *e)
 {
 	if (e->buttons() & Qt::LeftButton) {
-		_mouse_down_point = e->pos();
+		mouse_down_point_ = e->pos();
 
-		_grabbed_marker.reset();
+		mouse_down_item_.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();
-		}
+		const vector< shared_ptr<TimeItem> > items(view_.time_items());
+		for (auto &i : items)
+			if (i && i->label_rect(rect()).contains(e->pos())) {
+				mouse_down_item_ = i;
+				break;
+			}
 
-		if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
-			m->select();
+		if (mouse_down_item_) {
+			mouse_down_item_->select();
+			mouse_down_item_->drag();
+		}
 
 		selection_changed();
 	}
@@ -111,16 +133,28 @@ 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);
+	if (!dragging_ && mouse_down_item_) {
+		Popup *const p = mouse_down_item_->create_popup(&view_);
+		if (p) {
+			const QPoint arrpos(mouse_down_item_->get_x(),
+				height() - BaselineOffset);
+			p->set_position(mapToGlobal(arrpos), Popup::Bottom);
 			p->show();
 		}
+	}
 
-	_dragging = false;
-	_grabbed_marker.reset();
+	dragging_ = false;
+	mouse_down_item_.reset();
+
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+	for (auto &i : items)
+		i->drag_release();
+}
+
+void CursorHeader::leaveEvent(QEvent*)
+{
+	mouse_point_ = QPoint(-1, -1);
+	update();
 }
 
 } // namespace view