rom/devs/input/support.c

   1 /*
   2     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8
   9
  10 #include <proto/exec.h>
  11 #include <exec/tasks.h>
  12 #include <exec/lists.h>
  13 #include <exec/memory.h>
  14
  15 #include "input_intern.h"
  16
  17 /***************************
  18 **  GetEventsFromQueue()  **
  19 ***************************/
  20 struct InputEvent *GetEventsFromQueue(struct inputbase *InputDevice)
  21 {
  22     struct InputEvent *ie;
  23
  24     ie = InputDevice->EventQueueHead;
  25
  26     /* No more events in the queue */
  27     InputDevice->EventQueueHead = NULL;
  28     InputDevice->EventQueueTail = NULL;
  29
  30     return (ie);
  31 }
  32
  33
  34
  35 /******************
  36 **  AddEQTail()  **
  37 ******************/
  38 /* Adds a chian of InputEvents to the eventqueue */
  39 VOID AddEQTail(struct InputEvent *ie, struct inputbase *InputDevice)
  40 {
  41     /* Experimental */
  42     if (InputDevice->pub.id_Flags & IDF_SWAP_BUTTONS)
  43     {
  44         UWORD code;
  45
  46         switch (ie->ie_Class)
  47         {
  48         /* FIXME: add more event classes to which this is applicable */
  49         case IECLASS_RAWMOUSE:
  50             code = ie->ie_Code & ~IECODE_UP_PREFIX;
  51
  52             switch (code) {
  53             case IECODE_LBUTTON:
  54                 code = IECODE_RBUTTON;
  55                 break;
  56             case IECODE_RBUTTON:
  57                 code = IECODE_LBUTTON;
  58                 break;
  59             }
  60
  61             ie->ie_Code = code | (ie->ie_Code & IECODE_UP_PREFIX);
  62         }
  63     }
  64
  65     if (!InputDevice->EventQueueHead) /* Empty queue ? */
  66     {
  67         InputDevice->EventQueueHead = ie;
  68     }
  69     else
  70     {
  71         InputDevice->EventQueueTail->ie_NextEvent = ie;
  72     }
  73
  74     /* Get last event in eventchain to add */
  75     while (ie->ie_NextEvent)
  76         ie = ie->ie_NextEvent;
  77
  78     InputDevice->EventQueueTail =  ie;
  79
  80     return;
  81 }
  82
  83 /*********************
  84 **  IsQualifierKey  **
  85 *********************/
  86 BOOL IsQualifierKey(UWORD key)
  87 {
  88     BOOL result = FALSE;
  89
  90     key &= ~IECODE_UP_PREFIX;
  91
  92     if ((key >= 0x60) && (key <= 0x67))
  93     {
  94         result = TRUE;
  95     }
  96
  97     return result;
  98 }
  99
 100 /************************
 101 **  IsKeyRepeatable()  **
 102 ************************/
 103 BOOL IsRepeatableKey(UWORD key)
 104 {
 105     BOOL result = TRUE;
 106
 107     key &= ~IECODE_UP_PREFIX;
 108
 109     /* stegerg: It looks like this is really all so no need to
 110        check the keymap->repeatable tables. I have checked this
 111        on the Amiga. All keys except the qualifier keys are
 112        treated as repeatable raw (!!!) keys. Here in input.device
 113        we have only raw keys. For vanilla keys there's MapRawKey()
 114        and this function thakes care of filtering out repeated
 115        raw keys if the corresponding KeyMap->repeatable table says
 116        that this key is not repeatable */
 117
 118     if (IsQualifierKey(key))
 119     {
 120         result = FALSE;
 121     }
 122
 123     return result;
 124 }