git.iko.soy/unity8
on f621663 help sign in
unity8/plugins/Lights/Lights.cpp
182 lines 4.1 kB history raw
1/*
2 * Copyright (C) 2014 Canonical, Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 3.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 *
16 * Author: Renato Araujo Oliveira Filho <renato.filho@canonical.com>
17 */
19#include "Lights.h"
20#include <QtCore/QDebug>
22extern "C" {
23#include <hardware/hardware.h>
24#include <hardware/lights.h>
25#include <string.h>
28Lights::Lights(QObject* parent)
29 : QObject(parent),
30 m_lightDevice(0),
31 m_color("blue"),
32 m_state(Lights::Off),
33 m_onMs(1000),
34 m_offMs(3000)
38Lights::~Lights()
40 if (m_lightDevice) {
41 hw_device_t* device = (hw_device_t*) m_lightDevice;
42 device->close(device);
43 }
46void Lights::setState(Lights::State newState)
48 if (m_state != newState) {
49 if (newState == Lights::On) {
50 turnOn();
51 } else {
52 turnOff();
53 }
54 }
57Lights::State Lights::state() const
59 return m_state;
62void Lights::setColor(const QColor &color)
64 if (m_color != color) {
65 m_color = color;
66 Q_EMIT colorChanged(m_color);
67 // FIXME: update the collor if the light is already on
68 }
71QColor Lights::color() const
73 return m_color;
76int Lights::onMillisec() const
78 return m_onMs;
81void Lights::setOnMillisec(int onMs)
83 if (m_onMs != onMs) {
84 m_onMs = onMs;
85 Q_EMIT onMillisecChanged(m_onMs);
86 // FIXME: update the property if the light is already on
87 }
90int Lights::offMillisec() const
92 return m_offMs;
95void Lights::setOffMillisec(int offMs)
97 if (m_offMs != offMs) {
98 m_offMs = offMs;
99 Q_EMIT offMillisecChanged(m_offMs);
100 // FIXME: update the property if the light is already on
101 }
104bool Lights::init()
106 if (m_lightDevice) {
107 return true;
108 }
110 int err;
111 hw_module_t* module;
113 err = hw_get_module(LIGHTS_HARDWARE_MODULE_ID, (hw_module_t const**)&module);
114 if (err == 0) {
115 hw_device_t* device;
116 err = module->methods->open(module, LIGHT_ID_NOTIFICATIONS, &device);
117 if (err == 0) {
118 m_lightDevice = (light_device_t*)device;
119 return true;
120 } else {
121 qWarning() << "Failed to access notification lights";
122 }
123 } else {
124 qWarning() << "Failed to initialize lights hardware.";
125 }
126 return false;
129void Lights::turnOn()
131 if (!init()) {
132 qWarning() << "No lights device";
133 return;
134 }
136 if (m_state == Lights::On) {
137 return;
138 }
140 // pulse
141 light_state_t state;
142 memset(&state, 0, sizeof(light_state_t));
143 state.color = m_color.rgba();
144 state.flashMode = LIGHT_FLASH_TIMED;
145 state.flashOnMS = m_onMs;
146 state.flashOffMS = m_offMs;
147 state.brightnessMode = BRIGHTNESS_MODE_USER;
149 if (m_lightDevice->set_light(m_lightDevice, &state) != 0) {
150 qWarning() << "Failed to turn the light off";
151 } else {
152 m_state = Lights::On;
153 Q_EMIT stateChanged(m_state);
154 }
157void Lights::turnOff()
159 if (!init()) {
160 qWarning() << "No lights device";
161 return;
162 }
164 if (m_state == Lights::Off) {
165 return;
166 }
168 light_state_t state;
169 memset(&state, 0, sizeof(light_state_t));
170 state.color = 0x00000000;
171 state.flashMode = LIGHT_FLASH_NONE;
172 state.flashOnMS = 0;
173 state.flashOffMS = 0;
174 state.brightnessMode = 0;
176 if (m_lightDevice->set_light(m_lightDevice, &state) != 0) {
177 qWarning() << "Failed to turn the light off";
178 } else {
179 m_state = Lights::Off;
180 Q_EMIT stateChanged(m_state);
181 }