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b42d25c4 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
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. | |
10 | * | |
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. | |
15 | * | |
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 | |
19 | */ | |
20 | ||
21 | #include "cursorpair.h" | |
22 | ||
5139748b | 23 | #include "ruler.h" |
b42d25c4 JH |
24 | #include "view.h" |
25 | ||
0ba172cf JH |
26 | #include <algorithm> |
27 | ||
819f4c25 JH |
28 | using boost::shared_ptr; |
29 | using std::max; | |
30 | using std::make_pair; | |
31 | using std::min; | |
32 | using std::pair; | |
0ba172cf | 33 | |
b42d25c4 JH |
34 | namespace pv { |
35 | namespace view { | |
36 | ||
5139748b JH |
37 | const int CursorPair::DeltaPadding = 8; |
38 | ||
8debe10d | 39 | CursorPair::CursorPair(View &view) : |
58864c5c JH |
40 | _first(new Cursor(view, 0.0)), |
41 | _second(new Cursor(view, 1.0)), | |
b42d25c4 JH |
42 | _view(view) |
43 | { | |
44 | } | |
45 | ||
58864c5c | 46 | shared_ptr<Cursor> CursorPair::first() const |
b42d25c4 JH |
47 | { |
48 | return _first; | |
49 | } | |
50 | ||
58864c5c | 51 | shared_ptr<Cursor> CursorPair::second() const |
b42d25c4 JH |
52 | { |
53 | return _second; | |
54 | } | |
55 | ||
5139748b JH |
56 | QRectF CursorPair::get_label_rect(const QRect &rect) const |
57 | { | |
58 | const QSizeF label_size( | |
59 | _text_size.width() + View::LabelPadding.width() * 2, | |
60 | _text_size.height() + View::LabelPadding.height() * 2); | |
61 | const pair<float, float> offsets(get_cursor_offsets()); | |
62 | const pair<float, float> normal_offsets( | |
63 | (offsets.first < offsets.second) ? offsets : | |
64 | make_pair(offsets.second, offsets.first)); | |
65 | ||
66 | const float height = label_size.height(); | |
67 | const float left = max(normal_offsets.first + DeltaPadding, -height); | |
68 | const float right = min(normal_offsets.second - DeltaPadding, | |
69 | (float)rect.width() + height); | |
70 | ||
71 | return QRectF(left, rect.height() - label_size.height() - | |
72 | Cursor::ArrowSize - Cursor::Offset - 0.5f, | |
73 | right - left, height); | |
74 | } | |
75 | ||
332afa74 JH |
76 | void CursorPair::draw_markers(QPainter &p, |
77 | const QRect &rect, unsigned int prefix) | |
78 | { | |
58864c5c JH |
79 | assert(_first); |
80 | assert(_second); | |
81 | ||
5139748b JH |
82 | compute_text_size(p, prefix); |
83 | QRectF delta_rect(get_label_rect(rect)); | |
84 | ||
85 | const int radius = delta_rect.height() / 2; | |
86 | const QRectF text_rect(delta_rect.intersected( | |
87 | rect).adjusted(radius, 0, -radius, 0)); | |
88 | if(text_rect.width() >= _text_size.width()) | |
89 | { | |
90 | const int highlight_radius = delta_rect.height() / 2 - 2; | |
91 | ||
92 | p.setBrush(Cursor::FillColour); | |
93 | p.setPen(Cursor::LineColour); | |
94 | p.drawRoundedRect(delta_rect, radius, radius); | |
95 | ||
96 | delta_rect.adjust(1, 1, -1, -1); | |
97 | p.setPen(Cursor::HighlightColour); | |
98 | p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius); | |
99 | ||
100 | p.setPen(Cursor::TextColour); | |
101 | p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter, | |
58864c5c | 102 | Ruler::format_time(_second->time() - _first->time(), prefix, 2)); |
5139748b JH |
103 | } |
104 | ||
105 | // Paint the cursor markers | |
58864c5c JH |
106 | _first->paint_label(p, rect, prefix); |
107 | _second->paint_label(p, rect, prefix); | |
332afa74 JH |
108 | } |
109 | ||
0ba172cf JH |
110 | void CursorPair::draw_viewport_background(QPainter &p, |
111 | const QRect &rect) | |
112 | { | |
113 | p.setPen(Qt::NoPen); | |
114 | p.setBrush(QBrush(View::CursorAreaColour)); | |
115 | ||
199441e4 JH |
116 | const pair<float, float> offsets(get_cursor_offsets()); |
117 | const int l = (int)max(min( | |
118 | offsets.first, offsets.second), 0.0f); | |
119 | const int r = (int)min(max( | |
120 | offsets.first, offsets.second), (float)rect.width()); | |
0ba172cf JH |
121 | |
122 | p.drawRect(l, 0, r - l, rect.height()); | |
123 | } | |
124 | ||
125 | void CursorPair::draw_viewport_foreground(QPainter &p, | |
126 | const QRect &rect) | |
127 | { | |
58864c5c JH |
128 | assert(_first); |
129 | assert(_second); | |
130 | ||
131 | _first->paint(p, rect); | |
132 | _second->paint(p, rect); | |
0ba172cf JH |
133 | } |
134 | ||
5139748b JH |
135 | void CursorPair::compute_text_size(QPainter &p, unsigned int prefix) |
136 | { | |
58864c5c JH |
137 | assert(_first); |
138 | assert(_second); | |
139 | ||
5139748b | 140 | _text_size = p.boundingRect(QRectF(), 0, Ruler::format_time( |
58864c5c | 141 | _second->time() - _first->time(), prefix, 2)).size(); |
5139748b JH |
142 | } |
143 | ||
199441e4 JH |
144 | pair<float, float> CursorPair::get_cursor_offsets() const |
145 | { | |
58864c5c JH |
146 | assert(_first); |
147 | assert(_second); | |
148 | ||
199441e4 | 149 | return pair<float, float>( |
58864c5c JH |
150 | (_first->time() - _view.offset()) / _view.scale(), |
151 | (_second->time() - _view.offset()) / _view.scale()); | |
199441e4 JH |
152 | } |
153 | ||
b42d25c4 JH |
154 | } // namespace view |
155 | } // namespace pv |