Fix #540 by introducing a method to reset the view state

[pulseview.git] / pv / views / trace / view.hpp

diff --git a/pv/views/trace/view.hpp b/pv/views/trace/view.hpp
index 4514989765b9603d4b8809c1eaa0c3a209fc3783..a9e5564f1838d404b104e960f71e240aa25f1244 100644 (file)
--- a/pv/views/trace/view.hpp
+++ b/pv/views/trace/view.hpp
@@ -31,8 +31,9 @@
 #include <QSizeF>
 #include <QSplitter>
 
-#include <pv/data/signaldata.hpp>
+#include <pv/globalsettings.hpp>
 #include <pv/util.hpp>
+#include <pv/data/signaldata.hpp>
 #include <pv/views/viewbase.hpp>
 
 #include "cursorpair.hpp"
@@ -81,7 +82,7 @@ public:
        bool viewportEvent(QEvent *event);
 };
 
-class View : public ViewBase, public TraceTreeItemOwner
+class View : public ViewBase, public TraceTreeItemOwner, public GlobalSettingsInterface
 {
        Q_OBJECT
 
@@ -102,6 +103,14 @@ private:
 public:
        explicit View(Session &session, bool is_main_view=false, QWidget *parent = nullptr);
 
+       ~View();
+
+       /**
+        * Resets the view to its default state after construction. It does however
+        * not reset the signal bases or any other connections with the session.
+        */
+       virtual void reset_view_state();
+
        Session& session();
        const Session& session() const;
 
@@ -162,6 +171,10 @@ public:
         */
        const pv::util::Timestamp& ruler_offset() const;
 
+       void set_zero_position(pv::util::Timestamp& position);
+
+       void reset_zero_position();
+
        /**
         * Returns the vertical scroll offset.
         */
@@ -235,15 +248,15 @@ public:
        pair<pv::util::Timestamp, pv::util::Timestamp> get_time_extents() const;
 
        /**
-        * Enables or disables coloured trace backgrounds. If they're not
-        * coloured then they will use alternating colors.
+        * Enables or disables colored trace backgrounds. If they're not
+        * colored then they will use alternating colors.
         */
-       void enable_coloured_bg(bool state);
+       void enable_colored_bg(bool state);
 
        /**
-        * Returns true if the trace background should be drawn with a coloured background.
+        * Returns true if the trace background should be drawn with a colored background.
         */
-       bool coloured_bg() const;
+       bool colored_bg() const;
 
        /**
         * Enable or disable showing sampling points.
@@ -294,6 +307,8 @@ public:
 
        void restack_all_trace_tree_items();
 
+       void on_setting_changed(const QString &key, const QVariant &value);
+
 Q_SIGNALS:
        void hover_point_changed(const QPoint &hp);
 
@@ -329,7 +344,7 @@ Q_SIGNALS:
        void segment_display_mode_changed(int mode, bool segment_selectable);
 
 public Q_SLOTS:
-       void trigger_event(util::Timestamp location);
+       void trigger_event(int segment_id, util::Timestamp location);
 
 private:
        void get_scroll_layout(double &length, pv::util::Timestamp &offset) const;
@@ -403,6 +418,8 @@ private Q_SLOTS:
        void on_segment_completed(int new_segment_id);
        void on_segment_changed(int segment);
 
+       void on_settingViewTriggerIsZeroTime_changed(const QVariant new_value);
+
        virtual void perform_delayed_view_update();
 
        void process_sticky_events();
@@ -411,7 +428,7 @@ private Q_SLOTS:
         * Sets the 'offset_' and ruler_offset_ members and emits the 'offset_changed'
         * signal if needed.
         */
-       void set_offset(const pv::util::Timestamp& offset);
+       void set_offset(const pv::util::Timestamp& offset, bool force_update = false);
 
        /**
         * Sets the 'scale_' member and emits the 'scale_changed'
@@ -479,7 +496,7 @@ private:
        bool header_was_shrunk_;
 
        bool sticky_scrolling_;
-       bool coloured_bg_;
+       bool colored_bg_;
        bool always_zoom_to_fit_;
 
        pv::util::Timestamp tick_period_;