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84a0d458 JS |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 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 "cursorheader.h" | |
22 | ||
23 | #include "view.h" | |
24 | ||
25 | #include <QApplication> | |
26 | #include <QMouseEvent> | |
27 | ||
28 | #include <pv/widgets/popup.h> | |
29 | ||
30 | using std::shared_ptr; | |
31 | ||
32 | namespace pv { | |
33 | namespace view { | |
34 | ||
35 | const int CursorHeader::CursorHeaderHeight = 26; | |
36 | ||
37 | CursorHeader::CursorHeader(View &parent) : | |
38 | MarginWidget(parent), | |
39 | _dragging(false) | |
40 | { | |
41 | setMouseTracking(true); | |
42 | } | |
43 | ||
44 | QSize CursorHeader::sizeHint() const | |
45 | { | |
46 | return QSize(0, CursorHeaderHeight); | |
47 | } | |
48 | ||
49 | void CursorHeader::clear_selection() | |
50 | { | |
51 | CursorPair &cursors = _view.cursors(); | |
52 | cursors.first()->select(false); | |
53 | cursors.second()->select(false); | |
54 | update(); | |
55 | } | |
56 | ||
57 | void CursorHeader::paintEvent(QPaintEvent*) | |
58 | { | |
59 | QPainter p(this); | |
60 | p.setRenderHint(QPainter::Antialiasing); | |
61 | ||
62 | // Draw the cursors | |
63 | if (_view.cursors_shown()) { | |
64 | _view.cursors().draw_markers(p, rect(), 0); //prefix); | |
65 | } | |
66 | } | |
67 | ||
68 | void CursorHeader::mouseMoveEvent(QMouseEvent *e) | |
69 | { | |
70 | if (!(e->buttons() & Qt::LeftButton)) | |
71 | return; | |
72 | ||
73 | if ((e->pos() - _mouse_down_point).manhattanLength() < | |
74 | QApplication::startDragDistance()) | |
75 | return; | |
76 | ||
77 | _dragging = true; | |
78 | ||
79 | if (shared_ptr<TimeMarker> m = _grabbed_marker.lock()) | |
80 | m->set_time(_view.offset() + | |
81 | ((double)e->x() + 0.5) * _view.scale()); | |
82 | } | |
83 | ||
84 | void CursorHeader::mousePressEvent(QMouseEvent *e) | |
85 | { | |
86 | if (e->buttons() & Qt::LeftButton) { | |
87 | _mouse_down_point = e->pos(); | |
88 | ||
89 | _grabbed_marker.reset(); | |
90 | ||
91 | clear_selection(); | |
92 | ||
93 | if (_view.cursors_shown()) { | |
94 | CursorPair &cursors = _view.cursors(); | |
95 | if (cursors.first()->get_label_rect( | |
96 | rect()).contains(e->pos())) | |
97 | _grabbed_marker = cursors.first(); | |
98 | else if (cursors.second()->get_label_rect( | |
99 | rect()).contains(e->pos())) | |
100 | _grabbed_marker = cursors.second(); | |
101 | } | |
102 | ||
103 | if (shared_ptr<TimeMarker> m = _grabbed_marker.lock()) | |
104 | m->select(); | |
105 | ||
106 | selection_changed(); | |
107 | } | |
108 | } | |
109 | ||
110 | void CursorHeader::mouseReleaseEvent(QMouseEvent *) | |
111 | { | |
112 | using pv::widgets::Popup; | |
113 | ||
114 | if (!_dragging) | |
115 | if (shared_ptr<TimeMarker> m = _grabbed_marker.lock()) { | |
116 | Popup *const p = m->create_popup(&_view); | |
117 | p->set_position(mapToGlobal(QPoint(m->get_x(), | |
118 | height())), Popup::Bottom); | |
119 | p->show(); | |
120 | } | |
121 | ||
122 | _dragging = false; | |
123 | _grabbed_marker.reset(); | |
124 | } | |
125 | ||
126 | } // namespace view | |
127 | } // namespace pv |