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// -*- C++ -*-
/*
* Simple MultimEdia LiTerator(SMELT)
* by Chris Xiong 2015
* Input manager implementation
*
* WARNING: This library is in development and interfaces would be very
* unstable.
*
*/
#include "smelt_internal.hpp"
//static const char* INP_SDL_SRCFN="smelt/sdl/inp_sdl.cpp";
bool SMELT_IMPL::smGetInpEvent(smInpEvent *e)
{
TInputEventList *eptr;
if(inpQueue)
{
eptr=inpQueue;memcpy(e,&eptr->e,sizeof(smInpEvent));
inpQueue=inpQueue->next;delete eptr;return true;
}
return false;
}
void SMELT_IMPL::smGetMouse2f(float *x,float *y){*x=posx,*y=posy;}
void SMELT_IMPL::smSetMouse2f(float x,float y){SDL_WarpMouseInWindow((SDL_Window*)hwnd,x,y);}
void SMELT_IMPL::smSetMouseGrab(bool enabled){SDL_SetRelativeMouseMode((SDL_bool)(enabled?1:0));}
int SMELT_IMPL::smGetWheel(){return posz;}
bool SMELT_IMPL::smIsMouseOver(){return mouseOver;}
int SMELT_IMPL::smGetKey(){return lkey;}
int SMELT_IMPL::smGetKeyState(int key)
{
if(!(keyz[key]&4)&&keylst[key])return SMKST_RELEASE;
if(!(keyz[key]&4))return SMKST_NONE;
if((keyz[key]&4)&&!keylst[key])return SMKST_HIT;
return SMKST_KEEP;
}
void SMELT_IMPL::buildEvent(int type,int k,int scan,int flags,int x,int y)
{
TInputEventList *last,*eptr=new TInputEventList;
eptr->e.type=type;eptr->e.chcode=0;
int ptx=x,pty=y;
if(type==INPUT_KEYDOWN)
{
k=SDLKeyToSMKey(k);
if((k<0)||(k>(int)(sizeof(keyz)/sizeof(keyz[0]))))return;
keyz[k]|=4;if(!(flags&SMINP_REPEAT))keyz[k]|=1;
eptr->e.chcode=(k>=32&&k<=127)?k:0;
}
if(type==INPUT_KEYUP)
{
k=SDLKeyToSMKey(k);
if((k<0)||(k>(int)(sizeof(keyz)/sizeof(keyz[0]))))return;
keyz[k]&=~4;keyz[k]|=2;
eptr->e.chcode=(k>=32&&k<=127)?k:0;
}
if(type==INPUT_MOUSEWHEEL)
{eptr->e.sccode=0;eptr->e.wheel=k;}
else{eptr->e.sccode=k;eptr->e.wheel=0;}
if(type==INPUT_MBUTTONDOWN){keyz[k]|=1|4;captured=true;}
if(type==INPUT_MBUTTONUP){keyz[k]|=2;keyz[k]&=~4;ptx=(int)posx;pty=(int)posy;captured=false;}
if(keymods&KMOD_SHIFT)flags|=SMINP_SHIFT;
if(keymods&KMOD_CTRL)flags|=SMINP_CTRL;
if(keymods&KMOD_ALT)flags|=SMINP_ALT;
if(keymods&KMOD_CAPS)flags|=SMINP_CAPSLOCK;
if(keymods&KMOD_MODE)flags|=SMINP_SCROLLLOCK;
if(keymods&KMOD_NUM)flags|=SMINP_NUMLOCK;
eptr->e.flag=flags;
if(ptx==-1){eptr->e.x=posx;eptr->e.y=posy;}
else
{
ptx<0?ptx=0:0;pty<0?pty=0:0;
ptx>=scrw?ptx=scrw-1:0;pty>=scrh?pty=scrh-1:0;
eptr->e.x=(float)ptx;eptr->e.y=(float)pty;
}
eptr->next=0;
if(!inpQueue)inpQueue=eptr;
else
{
last=inpQueue;
while(last->next)last=last->next;
last->next=eptr;
}
if(eptr->e.type==INPUT_KEYDOWN||eptr->e.type==INPUT_MBUTTONDOWN)
lkey=eptr->e.sccode;
if(eptr->e.type==INPUT_MOUSEMOVE)posx=eptr->e.x,posy=eptr->e.y;
if(eptr->e.type==INPUT_MOUSEWHEEL)posz=eptr->e.wheel;
}
void SMELT_IMPL::initInput(){posx=posy=.0;memset(keyz,0,sizeof(keyz));}
void SMELT_IMPL::clearQueue()
{
TInputEventList *nxt,*eptr=inpQueue;
for(unsigned i=0;i<sizeof(keyz)/sizeof(keyz[0]);++i)keyz[i]&=~3;
while(eptr){nxt=eptr->next;delete eptr;eptr=nxt;}
inpQueue=NULL;posz=0;lkey=0;
}
int SMELT_IMPL::SDLKeyToSMKey(int sdlkey)
{
switch (sdlkey)
{
case SDL_SCANCODE_ESCAPE: return SMK_ESCAPE;
case SDL_SCANCODE_BACKSPACE: return SMK_BACKSPACE;
case SDL_SCANCODE_TAB: return SMK_TAB;
case SDL_SCANCODE_RETURN: return SMK_ENTER;
case SDL_SCANCODE_SPACE: return SMK_SPACE;
case SDL_SCANCODE_LSHIFT: return SMK_SHIFT;
case SDL_SCANCODE_RSHIFT: return SMK_SHIFT;
case SDL_SCANCODE_LCTRL: return SMK_CTRL;
case SDL_SCANCODE_RCTRL: return SMK_CTRL;
case SDL_SCANCODE_LALT: return SMK_ALT;
case SDL_SCANCODE_RALT: return SMK_ALT;
case SDL_SCANCODE_LGUI: return SMK_LWIN;
case SDL_SCANCODE_RGUI: return SMK_RWIN;
case SDL_SCANCODE_PAUSE: return SMK_PAUSE;
case SDL_SCANCODE_CAPSLOCK: return SMK_CAPSLOCK;
case SDL_SCANCODE_NUMLOCKCLEAR: return SMK_NUMLOCK;
case SDL_SCANCODE_SCROLLLOCK: return SMK_SCROLLLOCK;
case SDL_SCANCODE_PAGEUP: return SMK_PGUP;
case SDL_SCANCODE_PAGEDOWN: return SMK_PGDN;
case SDL_SCANCODE_HOME: return SMK_HOME;
case SDL_SCANCODE_END: return SMK_END;
case SDL_SCANCODE_INSERT: return SMK_INSERT;
case SDL_SCANCODE_DELETE: return SMK_DELETE;
case SDL_SCANCODE_LEFT: return SMK_LEFT;
case SDL_SCANCODE_UP: return SMK_UP;
case SDL_SCANCODE_RIGHT: return SMK_RIGHT;
case SDL_SCANCODE_DOWN: return SMK_DOWN;
case SDL_SCANCODE_0: return SMK_0;
case SDL_SCANCODE_1: return SMK_1;
case SDL_SCANCODE_2: return SMK_2;
case SDL_SCANCODE_3: return SMK_3;
case SDL_SCANCODE_4: return SMK_4;
case SDL_SCANCODE_5: return SMK_5;
case SDL_SCANCODE_6: return SMK_6;
case SDL_SCANCODE_7: return SMK_7;
case SDL_SCANCODE_8: return SMK_8;
case SDL_SCANCODE_9: return SMK_9;
case SDL_SCANCODE_A: return SMK_A;
case SDL_SCANCODE_B: return SMK_B;
case SDL_SCANCODE_C: return SMK_C;
case SDL_SCANCODE_D: return SMK_D;
case SDL_SCANCODE_E: return SMK_E;
case SDL_SCANCODE_F: return SMK_F;
case SDL_SCANCODE_G: return SMK_G;
case SDL_SCANCODE_H: return SMK_H;
case SDL_SCANCODE_I: return SMK_I;
case SDL_SCANCODE_J: return SMK_J;
case SDL_SCANCODE_K: return SMK_K;
case SDL_SCANCODE_L: return SMK_L;
case SDL_SCANCODE_M: return SMK_M;
case SDL_SCANCODE_N: return SMK_N;
case SDL_SCANCODE_O: return SMK_O;
case SDL_SCANCODE_P: return SMK_P;
case SDL_SCANCODE_Q: return SMK_Q;
case SDL_SCANCODE_R: return SMK_R;
case SDL_SCANCODE_S: return SMK_S;
case SDL_SCANCODE_T: return SMK_T;
case SDL_SCANCODE_U: return SMK_U;
case SDL_SCANCODE_V: return SMK_V;
case SDL_SCANCODE_W: return SMK_W;
case SDL_SCANCODE_X: return SMK_X;
case SDL_SCANCODE_Y: return SMK_Y;
case SDL_SCANCODE_Z: return SMK_Z;
case SDL_SCANCODE_MINUS: return SMK_MINUS;
case SDL_SCANCODE_EQUALS: return SMK_EQUALS;
case SDL_SCANCODE_BACKSLASH: return SMK_BACKSLASH;
case SDL_SCANCODE_LEFTBRACKET: return SMK_LBRACKET;
case SDL_SCANCODE_RIGHTBRACKET: return SMK_RBRACKET;
case SDL_SCANCODE_SEMICOLON: return SMK_SEMICOLON;
case SDL_SCANCODE_APOSTROPHE: return SMK_APOSTROPHE;
case SDL_SCANCODE_COMMA: return SMK_COMMA;
case SDL_SCANCODE_PERIOD: return SMK_PERIOD;
case SDL_SCANCODE_SLASH: return SMK_SLASH;
case SDL_SCANCODE_KP_0: return SMK_NUMPAD0;
case SDL_SCANCODE_KP_1: return SMK_NUMPAD1;
case SDL_SCANCODE_KP_2: return SMK_NUMPAD2;
case SDL_SCANCODE_KP_3: return SMK_NUMPAD3;
case SDL_SCANCODE_KP_4: return SMK_NUMPAD4;
case SDL_SCANCODE_KP_5: return SMK_NUMPAD5;
case SDL_SCANCODE_KP_6: return SMK_NUMPAD6;
case SDL_SCANCODE_KP_7: return SMK_NUMPAD7;
case SDL_SCANCODE_KP_8: return SMK_NUMPAD8;
case SDL_SCANCODE_KP_9: return SMK_NUMPAD9;
case SDL_SCANCODE_KP_MULTIPLY: return SMK_MULTIPLY;
case SDL_SCANCODE_KP_DIVIDE: return SMK_DIVIDE;
case SDL_SCANCODE_KP_PLUS: return SMK_ADD;
case SDL_SCANCODE_KP_MINUS: return SMK_SUBTRACT;
case SDL_SCANCODE_KP_PERIOD: return SMK_DECIMAL;
case SDL_SCANCODE_F1: return SMK_F1;
case SDL_SCANCODE_F2: return SMK_F2;
case SDL_SCANCODE_F3: return SMK_F3;
case SDL_SCANCODE_F4: return SMK_F4;
case SDL_SCANCODE_F5: return SMK_F5;
case SDL_SCANCODE_F6: return SMK_F6;
case SDL_SCANCODE_F7: return SMK_F7;
case SDL_SCANCODE_F8: return SMK_F8;
case SDL_SCANCODE_F9: return SMK_F9;
case SDL_SCANCODE_F10: return SMK_F10;
case SDL_SCANCODE_F11: return SMK_F11;
case SDL_SCANCODE_F12: return SMK_F12;
default: return -1;
}
return -1;
}
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