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annotate mde/input/joystick.d @ 31:baa87e68d7dc

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GUI now supports basic interactible widgets, widget colour and border are more unified, and some code cleanup. Removed some circular dependencies which slipped in. As a result, the OpenGL code got separated into different files. Enabled widgets to recieve events. New IParentWidget interface allowing widgets to interact with their parents. New Widget base class. New WidgetDecoration class. New ButtonWidget class responding to events (in a basic way). committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Tue, 29 Apr 2008 18:10:58 +0100
parents f985c28c0ec9
children 108d123238c0
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5f90774ea1ef Applied the GNU GPL v2 to mde.
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16 /** Opens SDL joysticks ready for use.
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17 * May be extended later to include other input devices and remap devices as per config.
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18 */
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19 module mde.input.joystick;
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21 import tango.util.log.Log : Log, Logger;
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23 import derelict.sdl.joystick;
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25 private Logger logger;
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26 static this() {
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27 logger = Log.getLogger ("mde.input.joystick");
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28 }
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29 private SDL_Joystick*[] joysticks; // pointers to all joystick structs, whether successfully opened or not
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31 /** Open joysticks ready for use.
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32 *
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33 * This is simply required for SDL to handle joystick events. It can fail, but won't affect anything
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34 * else, except for the controller not working.
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35 *
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36 * closeJoysticks must be run to cleanup afterwards.
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37 */
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38 void openJoysticks () {
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39 joysticks = new SDL_Joystick*[SDL_NumJoysticks ()];
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40 char tmp[128] = void;
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42 for (int i = 0; i < joysticks.length; ++i) {
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43 if ((joysticks[i] = SDL_JoystickOpen (i)) is null) { // null on failure
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44 logger.error (logger.format (tmp, "Unable to open joystick {} via SDL", i));
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45 }
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46 }
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48 logger.info (logger.format (tmp, "Opened {} joysticks via SDL, succesfully unless preceding errors say otherwise.", joysticks.length));
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49 }
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51 /// Cleanup fct.
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52 void closeJoysticks () {
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53 foreach (js; joysticks) {
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54 // FIXME: this is sometimes causing a SIGSEGV (Address boundary error)
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55 // FIXME: when init fails
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56 debug logger.trace ("Closing joysticks (this sometimes fails when mde exits prematurely)");
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57 if(js !is null) SDL_JoystickClose(js); // only close if successfully opened
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58 debug logger.trace ("Done closing joysticks");
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59 }
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60 }