mr4th-public
/
4coder
1
Fork 0
Code Issues Releases Activity

linux unicode to extended code point input translation[

master
Allen Webster 2017-02-12 22:08:57 -05:00
parent 424aa5113f
commit d2243d456e
1 changed files with 34 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
linux_4ed.cpp
View File

@ -2598,6 +2598,32 @@ LinuxX11WindowInit(int argc, char** argv, int* WinWidth, int* WinHeight)
return true;
}
internal u16
utf8_to_u16_unchecked(u8 *buffer){
u16 result = 0;
if (buffer[0] <= 0x7F){
result = (u16)buffer[0];
}
else if (buffer[0] <= 0xE0){
result = ((u16)((buffer[0])&0x1F)) << 6;
result |= ((u16)((buffer[1])&0x3F));
}
else if (buffer[0] <= 0xF0){
result = ((u16)((buffer[0])&0x0F)) << 12;
result |= ((u16)((buffer[1])&0x3F)) << 6;
result |= ((u16)((buffer[2])&0x3F));
}
else{
result = ((u16)((buffer[0])&0x07)) << 18;
result |= ((u16)((buffer[1])&0x3F)) << 12;
result |= ((u16)((buffer[2])&0x3F)) << 6;
result |= ((u16)((buffer[3])&0x3F));
}
return(result);
}
internal void
LinuxHandleX11Events(void)
{
@ -2633,12 +2659,12 @@ LinuxHandleX11Events(void)
Status status;
KeySym keysym = NoSymbol;
char buff[32] = {};
u8 buff[32] = {};
Xutf8LookupString(
linuxvars.input_context,
&Event.xkey,
buff,
(char*)buff,
sizeof(buff) - 1,
&keysym,
&status
@ -2651,22 +2677,23 @@ LinuxHandleX11Events(void)
fputs("FIXME: XBufferOverflow from LookupString.\n", stderr);
}
u8 key = *buff, key_no_caps = key;
u16 key = utf8_to_u16_unchecked(buff);
u16 key_no_caps = key;
if(mods[MDFR_CAPS_INDEX] && status == XLookupBoth && Event.xkey.keycode){
char buff_no_caps[32] = {};
u8 buff_no_caps[32] = {};
Event.xkey.state &= ~(LockMask);
XLookupString(
&Event.xkey,
buff_no_caps,
(char*)buff_no_caps,
sizeof(buff_no_caps) - 1,
NULL,
NULL
);
if(*buff_no_caps){
key_no_caps = *buff_no_caps;
key_no_caps = utf8_to_u16_unchecked(buff_no_caps);
}
}
@ -2687,7 +2714,7 @@ LinuxHandleX11Events(void)
if(special_key){
LinuxPushKey(special_key, 0, 0, &mods);
} else if(key < 128){
} else if(key < 256){
LinuxPushKey(key, key, key_no_caps, &mods);
} else {
LinuxPushKey(0, 0, 0, &mods);