X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fview.h;h=dec317ccf9a4f2000cd2ec2406f42998965dd936;hp=c87be36913e368c68bbd334a8d304b99c93a9849;hb=8dbbc7f0b9ea59d0f0d62225772f8a56eee125f5;hpb=640d091b45b196cc586fbc6a7bec71c5c7d75544

diff --git a/pv/view/view.h b/pv/view/view.h
index c87be369..dec317cc 100644
--- a/pv/view/view.h
+++ b/pv/view/view.h
@@ -23,7 +23,19 @@
 
 #include <stdint.h>
 
+#include <memory>
+#include <set>
+#include <unordered_map>
+#include <vector>
+
 #include <QAbstractScrollArea>
+#include <QSizeF>
+#include <QTimer>
+
+#include <pv/data/signaldata.h>
+
+#include "cursorpair.h"
+#include "rowitemowner.h"
 
 namespace pv {
 
@@ -31,68 +43,222 @@ 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 QColor CursorAreaColour;
+
+	static const QSizeF LabelPadding;
 
 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.
+	 */
 	double scale() const;
+
+	/**
+	 * Returns the time offset of the left edge of the view in
+	 * 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);
 
+	void zoom_fit();
+
+	void zoom_one_to_one();
+
+	/**
+	 * Sets the scale and offset.
+	 * @param scale The new view scale in seconds per pixel.
+	 * @param offset The view time offset in seconds.
+	 */
 	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.
+	 */
+	bool cursors_shown() const;
+
+	/**
+	 * Shows or hides the cursors.
+	 */
+	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.
+	 */
+	CursorPair& cursors();
+
+	/**
+	 * Returns a reference to the pair of cursors.
+	 */
+	const CursorPair& cursors() const;
+
+	const QPoint& hover_point() const;
+
+	void update_viewport();
+
+	void restack_all_row_items();
+
+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 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);
+
+	static bool add_channels_to_owner(
+		const std::vector< std::shared_ptr<sigrok::Channel> > &channels,
+		RowItemOwner *owner, int &offset,
+		std::unordered_map<std::shared_ptr<sigrok::Channel>,
+			std::shared_ptr<Signal> > &signal_map,
+		std::function<bool (std::shared_ptr<RowItem>)> filter_func =
+			std::function<bool (std::shared_ptr<RowItem>)>());
+
+	static void apply_offset(
+		std::shared_ptr<RowItem> row_item, int &offset);
+
 private:
+	bool eventFilter(QObject *object, QEvent *event);
+
 	bool viewportEvent(QEvent *e);
 
 	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);
 
+	void signals_changed();
 	void data_updated();
 
+	void marker_time_changed();
+
+	void on_signals_moved();
+
+	void process_sticky_events();
+
+	void on_hover_point_changed();
+
 private:
-	SigSession &_session;
+	SigSession &session_;
+
+	Viewport *viewport_;
+	Ruler *ruler_;
+	CursorHeader *cursorheader_;
+	Header *header_;
+
+	/// The view time scale in seconds per pixel.
+	double scale_;
+
+	/// The view time offset in seconds.
+	double offset_;
 
-	Viewport *_viewport;
-	Ruler *_ruler;
-	Header *_header;
+	int v_offset_;
+	bool updating_scroll_;
 
-	uint64_t _data_length;
+	bool show_cursors_;
+	CursorPair cursors_;
 
-	double _scale;
-	double _offset;
+	QPoint hover_point_;
 
-	int _v_offset;
+	unsigned int sticky_events_;
+	QTimer lazy_event_handler_;
 };
 
 } // namespace view