+++ /dev/null
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2013 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, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef PULSEVIEW_PV_VIEWITEM_HPP
-#define PULSEVIEW_PV_VIEWITEM_HPP
-
-#include <list>
-
-#include <QPen>
-
-#include "viewitempaintparams.hpp"
-
-class QAction;
-class QMenu;
-class QWidget;
-
-namespace pv {
-
-namespace widgets {
-class Popup;
-}
-
-namespace views {
-namespace TraceView {
-
-class ViewItemOwner;
-
-class ViewItem : public QObject
-{
- Q_OBJECT
-
-public:
- static const QSizeF LabelPadding;
- static const int HighlightRadius;
-
-public:
- ViewItem();
-
-public:
- /**
- * Returns true if the item is visible and enabled.
- */
- virtual bool enabled() const = 0;
-
- /**
- * Returns true if the item has been selected by the user.
- */
- bool selected() const;
-
- /**
- * Selects or deselects the signal.
- */
- virtual void select(bool select = true);
-
- /**
- * Returns true if the item may be dragged/moved.
- */
- virtual bool is_draggable() const;
-
- /**
- * Returns true if the item is being dragged.
- */
- bool dragging() const;
-
- /**
- * Sets this item into the dragged state.
- */
- void drag();
-
- /**
- * Sets this item into the un-dragged state.
- */
- virtual void drag_release();
-
- /**
- * Drags the item to a delta relative to the drag point.
- * @param delta the offset from the drag point.
- */
- virtual void drag_by(const QPoint &delta) = 0;
-
- /**
- * Get the drag point.
- * @param rect the rectangle of the widget area.
- */
- virtual QPoint point(const QRect &rect) const = 0;
-
- /**
- * Computes the outline rectangle of a label.
- * @param rect the rectangle of the header area.
- * @return Returns the rectangle of the signal label.
- * @remarks The default implementation returns an empty rectangle.
- */
- virtual QRectF label_rect(const QRectF &rect) const;
-
- /**
- * Computes the outline rectangle of the viewport hit-box.
- * @param rect the rectangle of the viewport area.
- * @return Returns the rectangle of the hit-box.
- * @remarks The default implementation returns an empty hit-box.
- */
- virtual QRectF hit_box_rect(const ViewItemPaintParams &pp) const;
-
- /**
- * Paints the signal label.
- * @param p the QPainter to paint into.
- * @param rect the rectangle of the header area.
- * @param hover true if the label is being hovered over by the mouse.
- */
- virtual void paint_label(QPainter &p, const QRect &rect, bool hover);
-
- /**
- * Paints the background layer of the item with a QPainter
- * @param p the QPainter to paint into.
- * @param pp the painting parameters object to paint with.
- */
- virtual void paint_back(QPainter &p, ViewItemPaintParams &pp);
-
- /**
- * Paints the mid-layer of the item with a QPainter
- * @param p the QPainter to paint into.
- * @param pp the painting parameters object to paint with.
- */
- virtual void paint_mid(QPainter &p, ViewItemPaintParams &pp);
-
- /**
- * Paints the foreground layer of the item with a QPainter
- * @param p the QPainter to paint into.
- * @param pp the painting parameters object to paint with.
- */
- virtual void paint_fore(QPainter &p, ViewItemPaintParams &pp);
-
-public:
- /**
- * Gets the text colour.
- * @remarks This colour is computed by comparing the lightness
- * of the trace colour against a threshold to determine whether
- * white or black would be more visible.
- */
- static QColor select_text_colour(QColor background);
-
-public:
- virtual QMenu* create_context_menu(QWidget *parent);
-
- virtual pv::widgets::Popup* create_popup(QWidget *parent);
-
- virtual void delete_pressed();
-
-protected:
- static QPen highlight_pen();
-
-protected:
- QWidget *context_parent_;
- QPoint drag_point_;
-
-private:
- bool selected_;
-};
-
-} // namespace TraceView
-} // namespace views
-} // namespace pv
-
-#endif // PULSEVIEW_PV_VIEWITEM_HPP