RowItemOwner: Added depth() method

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

diff --git a/pv/view/view.h b/pv/view/view.h
index 5a10ee9ecea7be2b9dacd69c6bb964d0a215de23..2f7462978943a84362ff295f95a29011bef6599d 100644 (file)
--- a/pv/view/view.h
+++ b/pv/view/view.h
@@ -23,12 +23,18 @@
 
 #include <stdint.h>
 
-#include <utility>
+#include <memory>
+#include <set>
+#include <vector>
 
 #include <QAbstractScrollArea>
 #include <QSizeF>
+#include <QTimer>
 
-#include "cursor.h"
+#include <pv/data/signaldata.h>
+
+#include "cursorpair.h"
+#include "rowitemowner.h"
 
 namespace pv {
 
@@ -36,27 +42,27 @@ class SigSession;
 
 namespace view {
 
+class CursorHeader;
 class Header;
 class Ruler;
 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;
 
-       static const int LabelMarginWidth;
-       static const int RulerHeight;
-
        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;
@@ -65,6 +71,21 @@ public:
        explicit View(SigSession &session, QWidget *parent = 0);
 
        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.
@@ -76,11 +97,20 @@ public:
         * seconds.
         */
        double offset() const;
-       int v_offset() const;
+       int owner_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);
 
+       void zoom_fit();
+
+       void zoom_one_to_one();
+
        /**
         * Sets the scale and offset.
         * @param scale The new view scale in seconds per pixel.
@@ -88,6 +118,11 @@ public:
         */
        void set_scale_offset(double scale, double offset);
 
+       std::set< std::shared_ptr<pv::data::SignalData> >
+               get_visible_data() const;
+
+       std::pair<double, double> get_time_extents() const;
+
        /**
         * Returns true if cursors are displayed. false otherwise.
         */
@@ -98,26 +133,65 @@ public:
         */
        void show_cursors(bool show = true);
 
+       /**
+        * Moves the cursors to a convenient position in the view.
+        */
+       void centre_cursors();
+
        /**
         * Returns a reference to the pair of cursors.
         */
-       std::pair<Cursor, Cursor>& cursors();
+       CursorPair& cursors();
+
+       /**
+        * Returns a reference to the pair of cursors.
+        */
+       const CursorPair& cursors() const;
 
        const QPoint& hover_point() const;
 
-       void normalize_layout();
+       void update_viewport();
 
-signals:
+Q_SIGNALS:
        void hover_point_changed();
 
        void signals_moved();
 
+       void selection_changed();
+
+       void scale_offset_changed();
+
 private:
        void get_scroll_layout(double &length, double &offset) const;
-       
+
+       /**
+        * Simultaneously sets the zoom and offset.
+        * @param scale The scale to set the view to in seconds per pixel. This
+        * value is clamped between MinScale and MaxScale.
+        * @param offset The offset of the left edge of the view in seconds.
+        */
+       void set_zoom(double scale, int offset);
+
        void update_scroll();
 
-       void reset_signal_layout();
+       void update_layout();
+
+       /**
+        * 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);
@@ -126,7 +200,12 @@ 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);
@@ -138,15 +217,18 @@ private slots:
 
        void on_signals_moved();
 
+       void process_sticky_events();
+
+       void on_hover_point_changed();
+
 private:
        SigSession &_session;
 
        Viewport *_viewport;
        Ruler *_ruler;
+       CursorHeader *_cursorheader;
        Header *_header;
 
-       uint64_t _data_length;
-
        /// The view time scale in seconds per pixel.
        double _scale;
 
@@ -154,11 +236,15 @@ private:
        double _offset;
 
        int _v_offset;
+       bool _updating_scroll;
 
        bool _show_cursors;
-       std::pair<Cursor, Cursor> _cursors;
+       CursorPair _cursors;
 
        QPoint _hover_point;
+
+       unsigned int _sticky_events;
+       QTimer _lazy_event_handler;
 };
 
 } // namespace view