X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fcursor.cpp;h=f22680b9f46f547bfbb315f43f9131140a588dc0;hp=071967998eac0047d894bca3e8edf712af736878;hb=cb5a1216019ae561046f7812b7fc67c11ea3d6c5;hpb=361c560ed9ef67278916e086ed0b0649ae01b583

diff --git a/pv/view/cursor.cpp b/pv/view/cursor.cpp
index 07196799..f22680b9 100644
--- a/pv/view/cursor.cpp
+++ b/pv/view/cursor.cpp
@@ -14,15 +14,16 @@
  * 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
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "cursor.hpp"
 
-#include "view.hpp"
 #include "pv/util.hpp"
+#include "ruler.hpp"
+#include "view.hpp"
 
+#include <QApplication>
 #include <QBrush>
 #include <QPainter>
 #include <QPointF>
@@ -31,131 +32,70 @@
 
 #include <cassert>
 #include <cstdio>
+#include <limits>
 
-#include <extdef.h>
-
+using std::abs; // Force usage of std::abs() instead of C's abs().
 using std::shared_ptr;
 
 namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
 
-const QColor Cursor::LineColour(32, 74, 135);
 const QColor Cursor::FillColour(52, 101, 164);
-const QColor Cursor::HighlightColour(83, 130, 186);
-const QColor Cursor::TextColour(Qt::white);
 
-const int Cursor::Offset = 1;
+Cursor::Cursor(View &view, double time) :
+	TimeMarker(view, FillColour, time)
+{
+}
 
-const int Cursor::ArrowSize = 4;
+bool Cursor::enabled() const
+{
+	return view_.cursors_shown();
+}
 
-Cursor::Cursor(View &view, double time) :
-	TimeMarker(view, LineColour, time)
+QString Cursor::get_text() const
 {
+	const shared_ptr<Cursor> other = get_other_cursor();
+	const pv::util::Timestamp& diff = abs(time_ - other->time_);
+
+	return Ruler::format_time_with_distance(
+		diff, time_, view_.tick_prefix(), view_.time_unit(), view_.tick_precision());
 }
 
-QRectF Cursor::get_label_rect(const QRect &rect) const
+QRectF Cursor::label_rect(const QRectF &rect) const
 {
 	const shared_ptr<Cursor> other(get_other_cursor());
 	assert(other);
 
-	const float x = (time_ - view_.offset()) / view_.scale();
+	const float x = get_x();
+
+	QFontMetrics m(QApplication::font());
+	QSize text_size = m.boundingRect(get_text()).size();
 
 	const QSizeF label_size(
-		text_size_.width() + View::LabelPadding.width() * 2,
-		text_size_.height() + View::LabelPadding.height() * 2);
+		text_size.width() + LabelPadding.width() * 2,
+		text_size.height() + LabelPadding.height() * 2);
 	const float top = rect.height() - label_size.height() -
-		Cursor::Offset - Cursor::ArrowSize - 0.5f;
+		TimeMarker::ArrowSize - 0.5f;
 	const float height = label_size.height();
 
-	if (time_ > other->time())
+	const pv::util::Timestamp& other_time = other->time();
+
+	if (time_ > other_time ||
+		(abs(time_ - other_time).is_zero() && this > other.get()))
 		return QRectF(x, top, label_size.width(), height);
 	else
-		return QRectF(x - label_size.width(), top,
-			label_size.width(), height);
-}
-
-void Cursor::paint_label(QPainter &p, const QRect &rect)
-{
-	const shared_ptr<Cursor> other(get_other_cursor());
-	assert(other);
-
-	const unsigned int prefix = view_.tick_prefix();
-
-	compute_text_size(p, prefix);
-	const QRectF r(get_label_rect(rect));
-
-	const QPointF left_points[] = {
-		r.topLeft(),
-		r.topRight(),
-		r.bottomRight(),
-		QPointF(r.left() + ArrowSize, r.bottom()),
-		QPointF(r.left(), rect.bottom()),
-	};
-
-	const QPointF right_points[] = {
-		r.topRight(),
-		r.topLeft(),
-		r.bottomLeft(),
-		QPointF(r.right() - ArrowSize, r.bottom()),
-		QPointF(r.right(), rect.bottom()),
-	};
-
-	const QPointF left_highlight_points[] = {
-		QPointF(r.left() + 1, r.top() + 1),
-		QPointF(r.right() - 1, r.top() + 1),
-		QPointF(r.right() - 1, r.bottom() - 1),
-		QPointF(r.left() + ArrowSize - 1, r.bottom() - 1),
-		QPointF(r.left() + 1, rect.bottom() - 1),
-	};
-
-	const QPointF right_highlight_points[] = {
-		QPointF(r.right() - 1, r.top() + 1),
-		QPointF(r.left() + 1, r.top() + 1),
-		QPointF(r.left() + 1, r.bottom() - 1),
-		QPointF(r.right() - ArrowSize + 1, r.bottom() - 1),
-		QPointF(r.right() - 1, rect.bottom() - 1),
-	};
-
-	const QPointF *const points = (time_ > other->time()) ?
-		left_points : right_points;
-	const QPointF *const highlight_points = (time_ > other->time()) ?
-		left_highlight_points : right_highlight_points;
-
-	if (selected()) {
-		p.setPen(highlight_pen());
-		p.setBrush(Qt::transparent);
-		p.drawPolygon(points, countof(left_points));
-	}
-
-	p.setPen(Qt::transparent);
-	p.setBrush(FillColour);
-	p.drawPolygon(points, countof(left_points));
-
-	p.setPen(HighlightColour);
-	p.setBrush(Qt::transparent);
-	p.drawPolygon(highlight_points, countof(left_highlight_points));
-
-	p.setPen(LineColour);
-	p.setBrush(Qt::transparent);
-	p.drawPolygon(points, countof(left_points));
-
-	p.setPen(TextColour);
-	p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter,
-		pv::util::format_time(time_, prefix, 2));
-}
-
-void Cursor::compute_text_size(QPainter &p, unsigned int prefix)
-{
-	text_size_ = p.boundingRect(QRectF(), 0,
-		pv::util::format_time(time_, prefix, 2)).size();
+		return QRectF(x - label_size.width(), top, label_size.width(), height);
 }
 
 shared_ptr<Cursor> Cursor::get_other_cursor() const
 {
-	const CursorPair &cursors = view_.cursors();
-	return (cursors.first().get() == this) ?
-		cursors.second() : cursors.first();
+	const shared_ptr<CursorPair> cursors(view_.cursors());
+	assert(cursors);
+	return (cursors->first().get() == this) ?
+		cursors->second() : cursors->first();
 }
 
-} // namespace view
+} // namespace TraceView
+} // namespace views
 } // namespace pv