2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_PV_VIEW_RULER_HPP
22 #define PULSEVIEW_PV_VIEW_RULER_HPP
26 #include "marginwidget.hpp"
34 class Ruler : public MarginWidget
40 /// Height of the ruler in multipes of the text height
41 static const float RulerHeight;
43 static const int MinorTickSubdivision;
45 /// Height of the hover arrow in multiples of the text height
46 static const float HoverArrowSize;
52 QSize sizeHint() const;
55 * The extended area that the header widget would like to be sized to.
56 * @remarks This area is the area specified by sizeHint, extended by
57 * the area to overlap the viewport.
59 QSize extended_size_hint() const;
63 * Gets the time items.
65 std::vector< std::shared_ptr<pv::view::ViewItem> > items();
68 * Gets the first view item which has a label that contains @c pt .
69 * @param pt the point to search with.
70 * @return the view item that has been found, or and empty
71 * @c shared_ptr if no item was found.
73 std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
77 void paintEvent(QPaintEvent *event);
79 void mouseDoubleClickEvent(QMouseEvent *e);
83 * Draw a hover arrow under the cursor position.
84 * @param p The painter to draw into.
85 * @param text_height The height of a single text ascent.
87 void draw_hover_mark(QPainter &p, int text_height);
89 int calculate_text_height() const;
92 void hover_point_changed();
98 #endif // PULSEVIEW_PV_VIEW_RULER_HPP