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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2015 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <cassert> | |
21 | ||
22 | #include <QTimer> | |
23 | #include <QToolTip> | |
24 | ||
25 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
26 | ||
27 | #include <pv/devicemanager.hpp> | |
28 | #include <pv/devices/device.hpp> | |
29 | ||
30 | #include "devicetoolbutton.hpp" | |
31 | ||
32 | using std::list; | |
33 | using std::shared_ptr; | |
34 | using std::string; | |
35 | using std::weak_ptr; | |
36 | using std::vector; | |
37 | ||
38 | using pv::devices::Device; | |
39 | ||
40 | namespace pv { | |
41 | namespace widgets { | |
42 | ||
43 | DeviceToolButton::DeviceToolButton(QWidget *parent, | |
44 | DeviceManager &device_manager, | |
45 | QAction *connect_action) : | |
46 | QToolButton(parent), | |
47 | device_manager_(device_manager), | |
48 | connect_action_(connect_action), | |
49 | menu_(this), | |
50 | mapper_(this), | |
51 | devices_() | |
52 | { | |
53 | setPopupMode(QToolButton::MenuButtonPopup); | |
54 | setMenu(&menu_); | |
55 | setDefaultAction(connect_action_); | |
56 | setMinimumWidth(QFontMetrics(font()).averageCharWidth() * 24); | |
57 | ||
58 | connect(&mapper_, SIGNAL(mapped(QObject*)), | |
59 | this, SLOT(on_action(QObject*))); | |
60 | ||
61 | connect(&menu_, SIGNAL(hovered(QAction*)), | |
62 | this, SLOT(on_menu_hovered(QAction*))); | |
63 | } | |
64 | ||
65 | shared_ptr<Device> DeviceToolButton::selected_device() | |
66 | { | |
67 | return selected_device_; | |
68 | } | |
69 | ||
70 | void DeviceToolButton::set_device_list( | |
71 | const list< shared_ptr<Device> > &devices, shared_ptr<Device> selected) | |
72 | { | |
73 | selected_device_ = selected; | |
74 | setText(selected ? QString::fromStdString( | |
75 | selected->display_name(device_manager_)) : tr("<No Device>")); | |
76 | devices_ = vector< weak_ptr<Device> >(devices.begin(), devices.end()); | |
77 | update_device_list(); | |
78 | } | |
79 | ||
80 | void DeviceToolButton::reset() | |
81 | { | |
82 | setText(tr("<No Device>")); | |
83 | selected_device_.reset(); | |
84 | update_device_list(); | |
85 | } | |
86 | ||
87 | void DeviceToolButton::update_device_list() | |
88 | { | |
89 | menu_.clear(); | |
90 | menu_.addAction(connect_action_); | |
91 | menu_.setDefaultAction(connect_action_); | |
92 | menu_.addSeparator(); | |
93 | ||
94 | for (weak_ptr<Device>& dev_weak_ptr : devices_) { | |
95 | shared_ptr<Device> dev(dev_weak_ptr.lock()); | |
96 | if (!dev) | |
97 | continue; | |
98 | ||
99 | QAction *const a = new QAction(QString::fromStdString( | |
100 | dev->display_name(device_manager_)), this); | |
101 | a->setCheckable(true); | |
102 | a->setChecked(selected_device_ == dev); | |
103 | a->setData(qVariantFromValue((void*)dev.get())); | |
104 | a->setToolTip(QString::fromStdString(dev->full_name())); | |
105 | mapper_.setMapping(a, a); | |
106 | ||
107 | connect(a, SIGNAL(triggered()), &mapper_, SLOT(map())); | |
108 | ||
109 | menu_.addAction(a); | |
110 | } | |
111 | } | |
112 | ||
113 | void DeviceToolButton::on_action(QObject *action) | |
114 | { | |
115 | assert(action); | |
116 | ||
117 | selected_device_.reset(); | |
118 | ||
119 | Device *const dev = (Device*)((QAction*)action)->data().value<void*>(); | |
120 | for (weak_ptr<Device>& dev_weak_ptr : devices_) { | |
121 | shared_ptr<Device> dev_ptr(dev_weak_ptr); | |
122 | if (dev_ptr.get() == dev) { | |
123 | selected_device_ = shared_ptr<Device>(dev_ptr); | |
124 | break; | |
125 | } | |
126 | } | |
127 | ||
128 | update_device_list(); | |
129 | setText(QString::fromStdString( | |
130 | selected_device_->display_name(device_manager_))); | |
131 | ||
132 | device_selected(); | |
133 | } | |
134 | ||
135 | void DeviceToolButton::on_menu_hovered(QAction *action) | |
136 | { | |
137 | assert(action); | |
138 | ||
139 | // Only show the tooltip for device entries (they hold | |
140 | // device pointers in their data field) | |
141 | if (!action->data().isValid()) | |
142 | return; | |
143 | ||
144 | device_tooltip_ = action->toolTip(); | |
145 | ||
146 | if (QToolTip::isVisible()) | |
147 | on_menu_hover_timeout(); | |
148 | else | |
149 | QTimer::singleShot(1000, this, SLOT(on_menu_hover_timeout())); | |
150 | } | |
151 | ||
152 | void DeviceToolButton::on_menu_hover_timeout() | |
153 | { | |
154 | if (device_tooltip_.isEmpty()) | |
155 | return; | |
156 | ||
157 | QToolTip::showText(QCursor::pos(), device_tooltip_); | |
158 | } | |
159 | ||
160 | } // namespace widgets | |
161 | } // namespace pv |