+++ /dev/null
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef PULSEVIEW_PV_VIEW_VIEW_H
-#define PULSEVIEW_PV_VIEW_VIEW_H
-
-#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 {
-
-class SigSession;
-
-namespace view {
-
-class CursorHeader;
-class Header;
-class Ruler;
-class Viewport;
-
-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 MaxScrollValue;
-
-public:
- 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 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);
-
-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_;
-
- 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_;
-
- int v_offset_;
- bool updating_scroll_;
-
- bool show_cursors_;
- CursorPair cursors_;
-
- QPoint hover_point_;
-
- unsigned int sticky_events_;
- QTimer lazy_event_handler_;
-};
-
-} // namespace view
-} // namespace pv
-
-#endif // PULSEVIEW_PV_VIEW_VIEW_H
projects / pulseview.git / blobdiff