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annotate src/video/x11/SDL_x11mouse.c @ 3777:54d08ecec1cb gsoc2008_manymouse

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Sharpened code looks and a minor events upgrade
author Szymon Wilczek <kazeuser@gmail.com>
date Wed, 06 Aug 2008 09:29:32 +0000
parents e5011833348a
children
rev   line source
1950
a344e42bce3b Started work on the new X11 driver.
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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
a344e42bce3b Started work on the new X11 driver.
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7 License as published by the Free Software Foundation; either
a344e42bce3b Started work on the new X11 driver.
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8 version 2.1 of the License, or (at your option) any later version.
a344e42bce3b Started work on the new X11 driver.
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9
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10 This library is distributed in the hope that it will be useful,
a344e42bce3b Started work on the new X11 driver.
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
a344e42bce3b Started work on the new X11 driver.
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
a344e42bce3b Started work on the new X11 driver.
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13 Lesser General Public License for more details.
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14
a344e42bce3b Started work on the new X11 driver.
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15 You should have received a copy of the GNU Lesser General Public
a344e42bce3b Started work on the new X11 driver.
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16 License along with this library; if not, write to the Free Software
a344e42bce3b Started work on the new X11 driver.
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
a344e42bce3b Started work on the new X11 driver.
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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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parents: 1950
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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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parents: 1950
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34 extern int SDL_NumOfXDevices;
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parents: 1950
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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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parents: 1950
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45 {
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46 /*if it's the core pointer or core keyborard we don't want it*/
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parents: 1950
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47 if((DevList[i].use!=IsXPointer && DevList[i].use!=IsXKeyboard))
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48 {
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49 /*we have to check all of the device classes*/
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parents: 1950
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50 deviceClass=DevList[i].inputclassinfo;
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parents: 1950
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51 for(j=0;j<DevList[i].num_classes;++j)
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parents: 1950
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52 {
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53 if(deviceClass->class==ValuatorClass)/*bingo;)*/
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54 {
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55 XValuatorInfo* valInfo;
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56 SDL_Mouse mouse;
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57
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58 newDevices= (XDevice**) SDL_realloc(SDL_XDevices, (index+1)*sizeof(*newDevices));
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parents: 1950
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59 if(!newDevices)
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parents: 1950
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60 {
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61 SDL_OutOfMemory();
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62 return;
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parents: 1950
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63 }
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parents: 1950
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64 SDL_XDevices=newDevices;
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parents: 1950
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65 SDL_XDevices[index]=XOpenDevice(data->display,DevList[i].id);
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66 SDL_zero(mouse);
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67
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68 /*the id of the device differs from its index
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69 *so we're assigning the index of a device to it's id*/
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parents: 1950
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70 SDL_SetIndexId(DevList[i].id,index);
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71 /*lets get the device parameters*/
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72 valInfo=(XValuatorInfo*)deviceClass;
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73 /*if the device reports pressure, lets check it parameteres*/
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74 if(valInfo->num_axes>2)
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75 {
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76 data->mouse = SDL_AddMouse(&mouse, index++,DevList[i].name,valInfo->axes[2].max_value,valInfo->axes[2].min_value,1);
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77 }
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78 else
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79 {
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80 data->mouse = SDL_AddMouse(&mouse, index++,DevList[i].name,0,0,1);
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81 }
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82 break;
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83 }
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84 /*if it's not class we're interested in, lets go further*/
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parents: 1950
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85 deviceClass=(XAnyClassPtr)((char*)deviceClass + deviceClass->length);
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86 }
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87 }
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88 }
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89 XFreeDeviceList(DevList);
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90
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91 SDL_NumOfXDevices=index;
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92 }
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93
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94 void
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95 X11_QuitMouse(_THIS)
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96 {
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97 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
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98
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99 /*Lets delete all of the mice*/
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100 SDL_MouseQuit();
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101 }
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102
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103 /* vi: set ts=4 sw=4 expandtab: */