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annotate mde/scheduler/init2.d @ 34:6b4116e6355c

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Work on the Gui: some of the framework for drag & drop. Also made Window an IWidget. Implemented getWidget(x,y) to find the widget under this location for IWidgets (but not Gui). Made Window an IWidget and made it work a little more similarly to widgets. Implemented callbacks on the Gui for mouse events (enabling drag & drop, etc.). committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Fri, 02 May 2008 16:03:52 +0100
parents 6886402c1545
children 57d000574d75
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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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4
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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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12
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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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15
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16 /** This module is the start of implementing the following:
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17 *
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18 * Idea: change import direction so this module adds all init functions. All init functions are
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19 * wrapped in another function before being run in a thread (i.e. run indirectly). Functions fail
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20 * either by throwing an exception or by returning a boolean. Functions may take parameters, e.g.
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21 * "out cleanupFunc[]".
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22 *
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23 * This should make it much easier to tell what actually happens during init and to order init such
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24 * that dependencies are honoured.
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25 *
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26 * Currently some external modules depend on InitFunctions, while some are set up from here. Once
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27 * all are set up from here, the Init* modules can be rearranged. */
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28 module mde.scheduler.init2;
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29
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30 import mde.scheduler.initFunctions;
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31
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32 import tango.util.log.Log : Log, Logger;
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33
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34 // Modules requiring init code running:
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35 import global = mde.global;
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36 import mde.gui.Gui;
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37 import mde.input.Input;
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38 import ft = mde.ft.init;
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39
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40 // NOTE: error reporting needs a revision
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41
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42 private Logger logger;
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43 static this () {
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44 logger = Log.getLogger ("mde.scheduler.Init2");
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45
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46 init.addFunc (&initInput, "initInput");
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47 init.addFunc (&guiLoad, "guiLoad");
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48 init.addFunc (&initFreeType, "initFreeType");
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49 }
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50
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51 void guiLoad () { // init func
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52 try {
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53 gui.load ("gui");
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54 } catch (Exception e) {
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55 logger.fatal ("guiLoad failed: " ~ e.msg);
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56 setInitFailure;
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57 }
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58 }
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59
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60 void initInput () { // init func
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61 try {
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62 global.input = new Input();
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63 global.input.loadConfig (); // (may also create instance)
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64
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65 // Quit on escape. NOTE: quit via SDL_QUIT event is handled completely independently!
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66 global.input.addButtonCallback (cast(Input.inputID) 0x0u, delegate void(Input.inputID i, bool b) {
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67 if (b) {
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68 logger.info ("Quiting...");
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69 global.run = false;
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70 }
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71 } );
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72
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73 // Aught to be added by the gui, but it doesn't know if input exists then.
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74 global.input.addMouseClickCallback(&gui.clickEvent);
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75 global.input.addMouseMotionCallback(&gui.motionEvent);
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76 } catch (Exception e) {
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77 logger.fatal ("initInput failed: " ~ e.msg);
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78 setInitFailure;
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79 }
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80 }
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81
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82 void initFreeType () { // init func
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83 try {
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84 ft.initFreeType;
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85 } catch (Exception e) {
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86 logger.fatal ("initFreeType failed: " ~ e.msg);
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87 setInitFailure;
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88 }
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89 }
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90
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91 /+ Potential wrapper function:
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92 // Template to call function, catching exceptions:
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93 void wrap(alias Func) () {
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94 try {
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95 Func();
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96 } catch (Exception e) {
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97 logger.fatal (FAIL_MSG);
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98 logger.fatal (e.msg);
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99 setInitFailure;
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100 }
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101 }
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102 private const FAIL_MSG = "Unexpected exception caught:";
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103 +/