TraceGroup: Implemented stacking

[pulseview.git] / pv / view / view.h

diff --git a/pv/view/view.h b/pv/view/view.h
index 85e990f7464660fe596635f2b41018cc5527bdca..eb60ab1a7735d9f3e51e2f96f00928fa5445b4da 100644 (file)
--- a/pv/view/view.h
+++ b/pv/view/view.h
@@ -29,10 +29,12 @@
 
 #include <QAbstractScrollArea>
 #include <QSizeF>
+#include <QTimer>
 
 #include <pv/data/signaldata.h>
 
 #include "cursorpair.h"
+#include "rowitemowner.h"
 
 namespace pv {
 
@@ -43,12 +45,17 @@ namespace view {
 class CursorHeader;
 class Header;
 class Ruler;
-class Trace;
 class Viewport;
 
-class View : public QAbstractScrollArea {
+class View : public QAbstractScrollArea, public RowItemOwner {
        Q_OBJECT
 
+private:
+       enum StickyEvents {
+               SelectableItemHExtentsChanged = 1,
+               SelectableItemVExtentsChanged = 2
+       };
+
 private:
        static const double MaxScale;
        static const double MinScale;
@@ -56,10 +63,6 @@ private:
        static const int MaxScrollValue;
 
 public:
-       static const int SignalHeight;
-       static const int SignalMargin;
-       static const int SignalSnapGridSize;
-
        static const QColor CursorAreaColour;
 
        static const QSizeF LabelPadding;
@@ -70,6 +73,20 @@ public:
        SigSession& session();
        const SigSession& session() const;
 
+       /**
+        * Returns the view of the owner.
+        */
+       virtual pv::view::View* view();
+
+       /**
+        * Returns the view of the owner.
+        */
+       virtual const pv::view::View* view() const;
+
+       Viewport* viewport();
+
+       const Viewport* viewport() const;
+
        /**
         * Returns the view time scale in seconds per pixel.
         */
@@ -80,7 +97,12 @@ public:
         * seconds.
         */
        double offset() const;
-       int v_offset() const;
+       int owner_visual_v_offset() const;
+
+       /**
+        * Returns the number of nested parents that this row item owner has.
+        */
+       unsigned int depth() const;
 
        void zoom(double steps);
        void zoom(double steps, int offset);
@@ -96,10 +118,6 @@ public:
         */
        void set_scale_offset(double scale, double offset);
 
-       std::vector< std::shared_ptr<Trace> > get_traces() const;
-
-       std::list<std::weak_ptr<SelectableItem> > selected_items() const;
-
        std::set< std::shared_ptr<pv::data::SignalData> >
                get_visible_data() const;
 
@@ -132,11 +150,11 @@ public:
 
        const QPoint& hover_point() const;
 
-       void normalize_layout();
-
        void update_viewport();
 
-signals:
+       void restack_all_row_items();
+
+Q_SIGNALS:
        void hover_point_changed();
 
        void signals_moved();
@@ -160,9 +178,22 @@ private:
 
        void update_layout();
 
-       static bool compare_trace_v_offsets(
-               const std::shared_ptr<pv::view::Trace> &a,
-               const std::shared_ptr<pv::view::Trace> &b);
+       /**
+        * Satisifies RowItem functionality.
+        * @param p the QPainter to paint into.
+        * @param right the x-coordinate of the right edge of the header
+        *      area.
+        * @param hover true if the label is being hovered over by the mouse.
+        */
+       void paint_label(QPainter &p, int right, bool hover);
+
+       /**
+        * Computes the outline rectangle of a label.
+        * @param right the x-coordinate of the right edge of the header
+        *      area.
+        * @return Returns the rectangle of the signal label.
+        */
+       QRectF label_rect(int right);
 
 private:
        bool eventFilter(QObject *object, QEvent *event);
@@ -171,7 +202,12 @@ private:
 
        void resizeEvent(QResizeEvent *e);
 
-private slots:
+public:
+       void appearance_changed(bool label, bool content);
+
+       void extents_changed(bool horz, bool vert);
+
+private Q_SLOTS:
 
        void h_scroll_value_changed(int value);
        void v_scroll_value_changed(int value);
@@ -183,7 +219,9 @@ private slots:
 
        void on_signals_moved();
 
-       void on_geometry_updated();
+       void process_sticky_events();
+
+       void on_hover_point_changed();
 
 private:
        SigSession &_session;
@@ -206,6 +244,9 @@ private:
        CursorPair _cursors;
 
        QPoint _hover_point;
+
+       unsigned int _sticky_events;
+       QTimer _lazy_event_handler;
 };
 
 } // namespace view