Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11mouse.c @ 2710:44e49d3fa6cf
Final merge of Google Summer of Code 2008 work...
Many-mouse and tablet support
by Szymon Wilczek, mentored by Ryan C. Gordon
Everything concerning the project is noted on the wiki:
http://wilku.ravenlord.ws/doku.php?id=start
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 25 Aug 2008 06:33:00 +0000 |
parents | a344e42bce3b |
children | 6fc50bdd88c0 |
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1950
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #include "SDL_x11video.h" |
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25 |
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26 #include "../../events/SDL_mouse_c.h" |
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27 |
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28 void |
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29 X11_InitMouse(_THIS) |
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30 { |
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31 extern XDevice **SDL_XDevices; |
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32 XDevice **newDevices; |
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33 int i, j, index = 0, numOfDevices; |
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34 extern int SDL_NumOfXDevices; |
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35 XDeviceInfo *DevList; |
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36 XAnyClassPtr deviceClass; |
1950
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37 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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38 |
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39 /* we're getting the list of input devices */ |
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40 DevList = XListInputDevices(data->display, &numOfDevices); |
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41 SDL_XDevices = (XDevice **) SDL_malloc(sizeof(XDevice)); |
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42 |
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43 /* we're aquiring valuators:mices, tablets, etc. */ |
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44 for (i = 0; i < numOfDevices; ++i) { |
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45 /* if it's the core pointer or core keyborard we don't want it */ |
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46 if ((DevList[i].use != IsXPointer && DevList[i].use != IsXKeyboard)) { |
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47 /* we have to check all of the device classes */ |
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48 deviceClass = DevList[i].inputclassinfo; |
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49 for (j = 0; j < DevList[i].num_classes; ++j) { |
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50 if (deviceClass->class == ValuatorClass) { /* bingo ;) */ |
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51 XValuatorInfo *valInfo; |
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52 SDL_Mouse mouse; |
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53 |
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54 newDevices = |
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55 (XDevice **) SDL_realloc(SDL_XDevices, |
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56 (index + |
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57 1) * sizeof(*newDevices)); |
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58 if (!newDevices) { |
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59 SDL_OutOfMemory(); |
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60 return; |
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61 } |
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62 SDL_XDevices = newDevices; |
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63 SDL_XDevices[index] = |
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64 XOpenDevice(data->display, DevList[i].id); |
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65 SDL_zero(mouse); |
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66 |
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67 /* the id of the device differs from its index |
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68 * so we're assigning the index of a device to it's id */ |
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69 SDL_SetMouseIndexId(DevList[i].id, index); |
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70 /* lets get the device parameters */ |
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71 valInfo = (XValuatorInfo *) deviceClass; |
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72 /* if the device reports pressure, lets check it parameteres */ |
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73 if (valInfo->num_axes > 2) { |
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74 data->mouse = |
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75 SDL_AddMouse(&mouse, index++, DevList[i].name, |
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76 valInfo->axes[2].max_value, |
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77 valInfo->axes[2].min_value, 1); |
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78 } else { |
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79 data->mouse = |
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80 SDL_AddMouse(&mouse, index++, DevList[i].name, 0, |
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81 0, 1); |
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82 } |
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83 break; |
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84 } |
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85 /* if it's not class we're interested in, lets go further */ |
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86 deviceClass = |
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87 (XAnyClassPtr) ((char *) deviceClass + |
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88 deviceClass->length); |
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89 } |
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90 } |
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91 } |
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92 XFreeDeviceList(DevList); |
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93 |
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94 SDL_NumOfXDevices = index; |
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95 } |
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96 |
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97 void |
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98 X11_QuitMouse(_THIS) |
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99 { |
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100 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata; |
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101 |
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102 /* let's delete all of the mice */ |
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103 SDL_MouseQuit(); |
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104 } |
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105 |
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106 /* vi: set ts=4 sw=4 expandtab: */ |