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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 | ||
23 | #include "view.h" | |
f0c9f81c | 24 | #include "pv/util.h" |
b42d25c4 | 25 | |
f9abf97e | 26 | #include <cassert> |
0ba172cf JH |
27 | #include <algorithm> |
28 | ||
819f4c25 JH |
29 | using std::max; |
30 | using std::make_pair; | |
31 | using std::min; | |
f9abf97e | 32 | using std::shared_ptr; |
819f4c25 | 33 | using std::pair; |
0ba172cf | 34 | |
b42d25c4 JH |
35 | namespace pv { |
36 | namespace view { | |
37 | ||
5139748b JH |
38 | const int CursorPair::DeltaPadding = 8; |
39 | ||
8debe10d | 40 | CursorPair::CursorPair(View &view) : |
58864c5c JH |
41 | _first(new Cursor(view, 0.0)), |
42 | _second(new Cursor(view, 1.0)), | |
b42d25c4 JH |
43 | _view(view) |
44 | { | |
45 | } | |
46 | ||
58864c5c | 47 | shared_ptr<Cursor> CursorPair::first() const |
b42d25c4 JH |
48 | { |
49 | return _first; | |
50 | } | |
51 | ||
58864c5c | 52 | shared_ptr<Cursor> CursorPair::second() const |
b42d25c4 JH |
53 | { |
54 | return _second; | |
55 | } | |
56 | ||
5139748b JH |
57 | QRectF CursorPair::get_label_rect(const QRect &rect) const |
58 | { | |
59 | const QSizeF label_size( | |
60 | _text_size.width() + View::LabelPadding.width() * 2, | |
61 | _text_size.height() + View::LabelPadding.height() * 2); | |
62 | const pair<float, float> offsets(get_cursor_offsets()); | |
63 | const pair<float, float> normal_offsets( | |
64 | (offsets.first < offsets.second) ? offsets : | |
65 | make_pair(offsets.second, offsets.first)); | |
66 | ||
67 | const float height = label_size.height(); | |
68 | const float left = max(normal_offsets.first + DeltaPadding, -height); | |
69 | const float right = min(normal_offsets.second - DeltaPadding, | |
70 | (float)rect.width() + height); | |
71 | ||
72 | return QRectF(left, rect.height() - label_size.height() - | |
73 | Cursor::ArrowSize - Cursor::Offset - 0.5f, | |
74 | right - left, height); | |
75 | } | |
76 | ||
332afa74 JH |
77 | void CursorPair::draw_markers(QPainter &p, |
78 | const QRect &rect, unsigned int prefix) | |
79 | { | |
58864c5c JH |
80 | assert(_first); |
81 | assert(_second); | |
82 | ||
5139748b JH |
83 | compute_text_size(p, prefix); |
84 | QRectF delta_rect(get_label_rect(rect)); | |
85 | ||
86 | const int radius = delta_rect.height() / 2; | |
87 | const QRectF text_rect(delta_rect.intersected( | |
88 | rect).adjusted(radius, 0, -radius, 0)); | |
89 | if(text_rect.width() >= _text_size.width()) | |
90 | { | |
91 | const int highlight_radius = delta_rect.height() / 2 - 2; | |
92 | ||
93 | p.setBrush(Cursor::FillColour); | |
94 | p.setPen(Cursor::LineColour); | |
95 | p.drawRoundedRect(delta_rect, radius, radius); | |
96 | ||
97 | delta_rect.adjust(1, 1, -1, -1); | |
98 | p.setPen(Cursor::HighlightColour); | |
99 | p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius); | |
100 | ||
101 | p.setPen(Cursor::TextColour); | |
102 | p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter, | |
f0c9f81c | 103 | pv::util::format_time(_second->time() - _first->time(), prefix, 2)); |
5139748b JH |
104 | } |
105 | ||
106 | // Paint the cursor markers | |
58864c5c JH |
107 | _first->paint_label(p, rect, prefix); |
108 | _second->paint_label(p, rect, prefix); | |
332afa74 JH |
109 | } |
110 | ||
0ba172cf JH |
111 | void CursorPair::draw_viewport_background(QPainter &p, |
112 | const QRect &rect) | |
113 | { | |
114 | p.setPen(Qt::NoPen); | |
115 | p.setBrush(QBrush(View::CursorAreaColour)); | |
116 | ||
199441e4 JH |
117 | const pair<float, float> offsets(get_cursor_offsets()); |
118 | const int l = (int)max(min( | |
119 | offsets.first, offsets.second), 0.0f); | |
120 | const int r = (int)min(max( | |
121 | offsets.first, offsets.second), (float)rect.width()); | |
0ba172cf JH |
122 | |
123 | p.drawRect(l, 0, r - l, rect.height()); | |
124 | } | |
125 | ||
126 | void CursorPair::draw_viewport_foreground(QPainter &p, | |
127 | const QRect &rect) | |
128 | { | |
58864c5c JH |
129 | assert(_first); |
130 | assert(_second); | |
131 | ||
132 | _first->paint(p, rect); | |
133 | _second->paint(p, rect); | |
0ba172cf JH |
134 | } |
135 | ||
5139748b JH |
136 | void CursorPair::compute_text_size(QPainter &p, unsigned int prefix) |
137 | { | |
58864c5c JH |
138 | assert(_first); |
139 | assert(_second); | |
140 | ||
f0c9f81c | 141 | _text_size = p.boundingRect(QRectF(), 0, pv::util::format_time( |
58864c5c | 142 | _second->time() - _first->time(), prefix, 2)).size(); |
5139748b JH |
143 | } |
144 | ||
199441e4 JH |
145 | pair<float, float> CursorPair::get_cursor_offsets() const |
146 | { | |
58864c5c JH |
147 | assert(_first); |
148 | assert(_second); | |
149 | ||
199441e4 | 150 | return pair<float, float>( |
58864c5c JH |
151 | (_first->time() - _view.offset()) / _view.scale(), |
152 | (_second->time() - _view.offset()) / _view.scale()); | |
199441e4 JH |
153 | } |
154 | ||
b42d25c4 JH |
155 | } // namespace view |
156 | } // namespace pv |