X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fruler.hpp;h=aabbe486cd8a93f8d3b986a26150aee4f40f739c;hp=f717c3785674c2b814838b915a18d18741ad6fed;hb=7352be721b90b630efd742b53e1a0ea16bb834b8;hpb=c677193dc6e691493081fe87476a04e1674093a5

diff --git a/pv/view/ruler.hpp b/pv/view/ruler.hpp
index f717c378..aabbe486 100644
--- a/pv/view/ruler.hpp
+++ b/pv/view/ruler.hpp
@@ -30,9 +30,9 @@
 #include <pv/util.hpp>
 
 namespace RulerTest {
-class tick_position_test_0;
-class tick_position_test_1;
-class tick_position_test_2;
+struct tick_position_test_0;
+struct tick_position_test_1;
+struct tick_position_test_2;
 }
 
 namespace pv {
@@ -45,9 +45,9 @@ class Ruler : public MarginWidget
 {
 	Q_OBJECT
 
-	friend class RulerTest::tick_position_test_0;
-	friend class RulerTest::tick_position_test_1;
-	friend class RulerTest::tick_position_test_2;
+	friend struct RulerTest::tick_position_test_0;
+	friend struct RulerTest::tick_position_test_1;
+	friend struct RulerTest::tick_position_test_2;
 
 private:
 
@@ -63,20 +63,53 @@ public:
 	Ruler(View &parent);
 
 public:
-	QSize sizeHint() const;
+	QSize sizeHint() const override;
 
 	/**
 	 * The extended area that the header widget would like to be sized to.
 	 * @remarks This area is the area specified by sizeHint, extended by
 	 * the area to overlap the viewport.
 	 */
-	QSize extended_size_hint() const;
+	QSize extended_size_hint() const override;
+
+	/**
+	 * Formats a timestamp depending on its distance to another timestamp.
+	 *
+	 * Heuristic function, useful when multiple timestamps should be put side by
+	 * side. The function procedes in the following order:
+	 *   - If 't' is zero, "0" is returned.
+	 *   - If 'unit' is 'TimeUnit::Samples', 'pv::util::format_time_si_adjusted()'
+	 *     is used to format 't'.
+	 *   - If a zoomed out view is detected (determined by 'precision' and
+	 *     'distance'), 'pv::util::format_time_minutes() is used.
+	 *   - For timestamps "near the origin" (determined by 'distance'),
+	 *    'pv::util::format_time_si_adjusted()' is used.
+	 *   - If none of the previous was true, 'pv::util::format_time_minutes()'
+	 *     is used again.
+	 *
+	 * @param distance The distance between the timestamp to format and
+	 *        an adjacent one.
+	 * @param t The value to format
+	 * @param prefix The SI prefix to use.
+	 * @param unit The representation of the timestamp value.
+	 * @param precision The number of digits after the decimal separator.
+	 * @param sign Whether or not to add a sign also for positive numbers.
+	 *
+	 * @return The formated value.
+	 */
+	static QString format_time_with_distance(
+		const pv::util::Timestamp& distance,
+		const pv::util::Timestamp& t,
+		pv::util::SIPrefix prefix = pv::util::SIPrefix::unspecified,
+		pv::util::TimeUnit unit = pv::util::TimeUnit::Time,
+		unsigned precision = 0,
+		bool sign = true);
 
 private:
 	/**
 	 * Gets the time items.
 	 */
-	std::vector< std::shared_ptr<pv::view::ViewItem> > items();
+	std::vector< std::shared_ptr<pv::view::ViewItem> > items() override;
 
 	/**
 	 * Gets the first view item which has a label that contains @c pt .
@@ -85,12 +118,11 @@ private:
 	 *   @c shared_ptr if no item was found.
 	 */
 	std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
-		const QPoint &pt);
+		const QPoint &pt) override;
 
-private:
-	void paintEvent(QPaintEvent *event);
+	void paintEvent(QPaintEvent *event) override;
 
-	void mouseDoubleClickEvent(QMouseEvent *e);
+	void mouseDoubleClickEvent(QMouseEvent *e) override;
 
 	/**
 	 * Draw a hover arrow under the cursor position.