Skip to content

Commit

Permalink
Date: Mon, 13 Oct 2003 13:37:18 +0100
Browse files Browse the repository at this point in the history 
From: "alan buckley"
Subject: Modification for RISC OS SDL port (SDL_riscosevents.c)

This modification improves the key press to Unicode character translation.
  • Loading branch information
@slouken
slouken committed Nov 5, 2003
1 parent 060e026 commit 1c33422
Showing 1 changed file with 96 additions and 14 deletions.
110 changes: 96 additions & 14 deletions src/video/riscos/SDL_riscosevents.c
View file
Expand Up @@ -71,7 +71,6 @@ static char RO_pressed[ROKEYBD_ARRAYSIZE];

static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed);


void RISCOS_PollMouse(_THIS);
void RISCOS_PollKeyboard();

Expand Down Expand Up @@ -144,7 +143,7 @@ void RISCOS_InitOSKeymap(_THIS)
RO_keymap[53] = SDLK_u;
RO_keymap[54] = SDLK_o;
RO_keymap[55] = SDLK_p;
RO_keymap[56] = SDLK_LEFTPAREN;
RO_keymap[56] = SDLK_LEFTBRACKET;
RO_keymap[57] = SDLK_UP;
RO_keymap[58] = SDLK_KP_PLUS;
RO_keymap[59] = SDLK_KP_MINUS;
Expand Down Expand Up @@ -173,7 +172,7 @@ void RISCOS_InitOSKeymap(_THIS)
RO_keymap[85] = SDLK_n;
RO_keymap[86] = SDLK_l;
RO_keymap[87] = SDLK_SEMICOLON;
RO_keymap[88] = SDLK_RIGHTPAREN;
RO_keymap[88] = SDLK_RIGHTBRACKET;
RO_keymap[89] = SDLK_DELETE;
RO_keymap[90] = SDLK_KP_MINUS;
RO_keymap[91] = SDLK_KP_MULTIPLY;
Expand Down Expand Up @@ -356,7 +355,7 @@ void RISCOS_PollKeyboard()
{
which_key = (_kernel_osbyte(121, which_key, 0) & 0xFF);
if (which_key != ROKEY_NONE)
{
{
switch(which_key)
{
/* Skip over mouse keys */
Expand All @@ -370,6 +369,10 @@ void RISCOS_PollKeyboard()
case 71: case 24: case 87: case 40:
break;

/* Ignore break as it can be latched on */
case 44:
break;

default:
RO_pressed[which_key] += 2;
break;
Expand Down Expand Up @@ -426,27 +429,107 @@ static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed)

state = (_kernel_osbyte(202, 0, 255) & 0xFF);

/*TODO: better key to char mapping */
/*TODO: Take into account other keyboard layouts */

ch = keysym->sym; /* This should handle most keys */
ch = keysym->sym; /* This should handle most unshifted keys */

if (intkey < 9)
if (intkey < 9 || ch == SDLK_UNKNOWN)
{
ch = 0;

} else if (state & 64) /* Control on */
{
ch = ch & 31;

} else if ((state & 16) == 0) /* Caps lock is on */
} else
{
if ((state & 128) == 0) /* Shift Enable off */
int topOfKey = 0;
if (state & 8) /* Shift on */
{
ch = toupper(ch);
topOfKey = 1;
}
} else if (state & 8) /* Shift on */
{
ch = toupper(ch);

if ((state & 16) == 0) /* Caps lock is on */
{
if (ch >= SDLK_a && ch <= SDLK_z)
{
if ((state & 128) == 0) /* Shift Enable off */
{
/* All letter become upper case */
topOfKey = 1;
} else
{
/* Shift+Letters gives lower case */
topOfKey = 1 - topOfKey;
}
}
}

if (topOfKey)
{
/* Key produced with shift held down */

/* Letters just give upper case version */
if (ch >= SDLK_a && ch <= SDLK_z) ch = toupper(ch);
else
{
switch(ch)
{
case SDLK_HASH: ch = '~'; break;
case SDLK_QUOTE: ch = '@'; break;
case SDLK_COMMA: ch = '<'; break;
case SDLK_MINUS: ch = '_'; break;
case SDLK_PERIOD: ch = '>'; break;
case SDLK_SLASH: ch = '?'; break;

case SDLK_0: ch = ')'; break;
case SDLK_1: ch = '!'; break;
case SDLK_2: ch = '"'; break;
case SDLK_3: ch = '£'; break;
case SDLK_4: ch = '$'; break;
case SDLK_5: ch = '%'; break;
case SDLK_6: ch = '^'; break;
case SDLK_7: ch = '&'; break;
case SDLK_8: ch = '*'; break;
case SDLK_9: ch = '('; break;

case SDLK_SEMICOLON: ch = ':'; break;
case SDLK_EQUALS: ch = '+'; break;
case SDLK_LEFTBRACKET: ch = '{'; break;
case SDLK_BACKSLASH: ch = '|'; break;
case SDLK_RIGHTBRACKET: ch = '}'; break;
case SDLK_BACKQUOTE: ch = '¬'; break;

default:
ch = 0; /* Map to zero character if we don't understand it */
break;
}
}

} else if (ch > 126)
{
/* SDL key code < 126 map directly onto their Unicode equivalents */
/* Keypad 0 to 9 maps to numeric equivalent */
if (ch >= SDLK_KP0 && ch <= SDLK_KP9) ch = ch - SDLK_KP0 + '0';
else
{
/* Following switch maps other keys that produce an Ascii value */
switch(ch)
{
case SDLK_KP_PERIOD: ch = '.'; break;
case SDLK_KP_DIVIDE: ch = '/'; break;
case SDLK_KP_MULTIPLY: ch = '*'; break;
case SDLK_KP_MINUS: ch = '-'; break;
case SDLK_KP_PLUS: ch = '+'; break;
case SDLK_KP_EQUALS: ch = '='; break;

default:
/* If we don't know what it is set the Unicode to 0 */
ch = 0;
break;
}
}
}
}

keysym->unicode = ch;
Expand All @@ -455,4 +538,3 @@ static SDL_keysym *TranslateKey(int intkey, SDL_keysym *keysym, int pressed)
}

/* end of SDL_riscosevents.c ... */

0 comments on commit 1c33422

Please sign in to comment.