Root/
1 | /*************************************************************************** |
2 | * Copyright (C) 2006 by Massimiliano Torromeo * |
3 | * massimiliano.torromeo@gmail.com * |
4 | * * |
5 | * This program is free software; you can redistribute it and/or modify * |
6 | * it under the terms of the GNU General Public License as published by * |
7 | * the Free Software Foundation; either version 2 of the License, or * |
8 | * (at your option) any later version. * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
19 | ***************************************************************************/ |
20 | |
21 | #include "debug.h" |
22 | #include "inputmanager.h" |
23 | #include "utilities.h" |
24 | #include "powersaver.h" |
25 | #include "menu.h" |
26 | |
27 | #include <iostream> |
28 | #include <fstream> |
29 | |
30 | using namespace std; |
31 | |
32 | void InputManager::init(const string &conffile, Menu *menu) { |
33 | this->menu = menu; |
34 | |
35 | for (int i = 0; i < BUTTON_TYPE_SIZE; i++) { |
36 | buttonMap[i].source = UNMAPPED; |
37 | } |
38 | readConfFile(conffile); |
39 | } |
40 | |
41 | InputManager::InputManager() |
42 | { |
43 | #ifndef SDL_JOYSTICK_DISABLED |
44 | int i; |
45 | |
46 | if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0) { |
47 | ERROR("Unable to init joystick subsystem\n"); |
48 | return; |
49 | } |
50 | |
51 | for (i = 0; i < SDL_NumJoysticks(); i++) { |
52 | struct Joystick joystick = { |
53 | SDL_JoystickOpen(i), false, false, false, false, |
54 | }; |
55 | joysticks.push_back(joystick); |
56 | } |
57 | |
58 | DEBUG("Opening %i joysticks\n", i); |
59 | #endif |
60 | } |
61 | |
62 | InputManager::~InputManager() |
63 | { |
64 | #ifndef SDL_JOYSTICK_DISABLED |
65 | for (auto it : joysticks) |
66 | SDL_JoystickClose(it.joystick); |
67 | #endif |
68 | } |
69 | |
70 | void InputManager::readConfFile(const string &conffile) { |
71 | ifstream inf(conffile.c_str(), ios_base::in); |
72 | if (inf.fail()) { |
73 | ERROR("InputManager: failed to open config file\n"); |
74 | return; |
75 | } |
76 | |
77 | string line; |
78 | while (getline(inf, line, '\n')) { |
79 | string::size_type pos = line.find("="); |
80 | string name = trim(line.substr(0,pos)); |
81 | line = trim(line.substr(pos+1,line.length())); |
82 | |
83 | Button button; |
84 | if (name == "up") button = UP; |
85 | else if (name == "down") button = DOWN; |
86 | else if (name == "left") button = LEFT; |
87 | else if (name == "right") button = RIGHT; |
88 | else if (name == "accept") button = ACCEPT; |
89 | else if (name == "cancel") button = CANCEL; |
90 | else if (name == "altleft") button = ALTLEFT; |
91 | else if (name == "altright") button = ALTRIGHT; |
92 | else if (name == "menu") button = MENU; |
93 | else if (name == "settings") button = SETTINGS; |
94 | else { |
95 | WARNING("InputManager: Ignoring unknown button name \"%s\"\n", |
96 | name.c_str()); |
97 | continue; |
98 | } |
99 | |
100 | pos = line.find(","); |
101 | string sourceStr = trim(line.substr(0,pos)); |
102 | line = trim(line.substr(pos+1, line.length())); |
103 | |
104 | ButtonSource source; |
105 | if (sourceStr == "keyboard") { |
106 | source = KEYBOARD; |
107 | #ifndef SDL_JOYSTICK_DISABLED |
108 | } else if (sourceStr == "joystick") { |
109 | source = JOYSTICK; |
110 | #endif |
111 | } else { |
112 | WARNING("InputManager: Ignoring unknown button source \"%s\"\n", |
113 | sourceStr.c_str()); |
114 | continue; |
115 | } |
116 | buttonMap[button].source = source; |
117 | buttonMap[button].code = atoi(line.c_str()); |
118 | } |
119 | |
120 | inf.close(); |
121 | } |
122 | |
123 | InputManager::Button InputManager::waitForPressedButton() { |
124 | Button button; |
125 | while (!getButton(&button, true)); |
126 | return button; |
127 | } |
128 | |
129 | bool InputManager::pollButton(Button *button) { |
130 | return getButton(button, false); |
131 | } |
132 | |
133 | bool InputManager::getButton(Button *button, bool wait) { |
134 | //TODO: when an event is processed, program a new event |
135 | //in some time, and when it occurs, do a key repeat |
136 | |
137 | #ifndef SDL_JOYSTICK_DISABLED |
138 | if (joysticks.size() > 0) |
139 | SDL_JoystickUpdate(); |
140 | #endif |
141 | |
142 | SDL_Event event; |
143 | if (wait) |
144 | SDL_WaitEvent(&event); |
145 | else if (!SDL_PollEvent(&event)) |
146 | return false; |
147 | |
148 | ButtonSource source; |
149 | switch(event.type) { |
150 | case SDL_KEYDOWN: |
151 | source = KEYBOARD; |
152 | break; |
153 | #ifndef SDL_JOYSTICK_DISABLED |
154 | case SDL_JOYBUTTONDOWN: |
155 | source = JOYSTICK; |
156 | break; |
157 | case SDL_JOYAXISMOTION: { |
158 | source = JOYSTICK; |
159 | |
160 | unsigned int axis = event.jaxis.axis; |
161 | /* We only handle the first joystick */ |
162 | if (axis > 1) |
163 | return false; |
164 | |
165 | bool *axisState = joysticks[event.jaxis.which].axisState[axis]; |
166 | |
167 | if (event.jaxis.value < -20000) { |
168 | if (axisState[AXIS_STATE_NEGATIVE]) |
169 | return false; |
170 | axisState[AXIS_STATE_NEGATIVE] = true; |
171 | axisState[AXIS_STATE_POSITIVE] = false; |
172 | *button = axis ? UP : LEFT; |
173 | } else if (event.jaxis.value > 20000) { |
174 | if (axisState[AXIS_STATE_POSITIVE]) |
175 | return false; |
176 | axisState[AXIS_STATE_NEGATIVE] = false; |
177 | axisState[AXIS_STATE_POSITIVE] = true; |
178 | *button = axis ? DOWN : RIGHT; |
179 | } else { |
180 | axisState[0] = axisState[1] = false; |
181 | return false; |
182 | } |
183 | break; |
184 | } |
185 | #endif |
186 | case SDL_USEREVENT: |
187 | switch ((enum EventCode) event.user.code) { |
188 | #ifdef HAVE_LIBOPK |
189 | case REMOVE_LINKS: |
190 | menu->removePackageLink((const char *) event.user.data1); |
191 | break; |
192 | case OPEN_PACKAGE: |
193 | menu->openPackage((const char *) event.user.data1); |
194 | break; |
195 | case OPEN_PACKAGES_FROM_DIR: |
196 | menu->openPackagesFromDir( |
197 | ((string) (const char *) event.user.data1 |
198 | + "/apps").c_str()); |
199 | break; |
200 | #endif /* HAVE_LIBOPK */ |
201 | case REPAINT_MENU: |
202 | default: |
203 | break; |
204 | } |
205 | |
206 | if (event.user.data1) |
207 | free(event.user.data1); |
208 | *button = REPAINT; |
209 | return true; |
210 | |
211 | default: |
212 | return false; |
213 | } |
214 | |
215 | int i = 0; |
216 | if (source == KEYBOARD) { |
217 | for (i = 0; i < BUTTON_TYPE_SIZE; i++) { |
218 | if (buttonMap[i].source == KEYBOARD |
219 | && (unsigned int)event.key.keysym.sym == buttonMap[i].code) { |
220 | *button = static_cast<Button>(i); |
221 | break; |
222 | } |
223 | } |
224 | #ifndef SDL_JOYSTICK_DISABLED |
225 | } else if (source == JOYSTICK && event.type != SDL_JOYAXISMOTION) { |
226 | for (i = 0; i < BUTTON_TYPE_SIZE; i++) { |
227 | if (buttonMap[i].source == JOYSTICK |
228 | && (unsigned int)event.jbutton.button == buttonMap[i].code) { |
229 | *button = static_cast<Button>(i); |
230 | break; |
231 | } |
232 | } |
233 | #endif |
234 | } |
235 | |
236 | if (i == BUTTON_TYPE_SIZE) |
237 | return false; |
238 | |
239 | if (wait && PowerSaver::isRunning()) { |
240 | PowerSaver::getInstance()->resetScreenTimer(); |
241 | } |
242 | |
243 | return true; |
244 | } |
245 |
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