/*

SDL - Simple DirectMedia Layer

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with this library; if not, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

#include <stdlib.h>

#include <stdio.h>

#include <windows.h>

#include "SDL_events.h"

#include "SDL_error.h"

#include "SDL_syswm.h"

#include "SDL_sysevents.h"

#include "SDL_events_c.h"

#include "SDL_lowvideo.h"

#include "SDL_dibvideo.h"

#include "SDL_vkeys.h"

#ifndef WM_APP

#define WM_APP 0x8000

#endif

#ifdef _WIN32_WCE

#define NO_GETKEYBOARDSTATE

#endif

/* The translation table from a Microsoft VK keysym to a SDL keysym */

static SDLKey VK_keymap[SDLK_LAST];

static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed);

/* Masks for processing the windows KEYDOWN and KEYUP messages */

#define REPEATED_KEYMASK (1<<30)

#define EXTENDED_KEYMASK (1<<24)

/* DJM: If the user setup the window for us, we want to save his window proc,

and give him a chance to handle some messages. */

static WNDPROC userWindowProc = NULL;

/* The main Win32 event handler */

LONG

DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)

{

extern int posted;

switch (msg) {

case WM_SYSKEYDOWN:

case WM_KEYDOWN: {

SDL_keysym keysym;

/* Ignore repeated keys */

if ( lParam&REPEATED_KEYMASK ) {

return(0);

}

switch (wParam) {

case VK_CONTROL:

if ( lParam&EXTENDED_KEYMASK )

wParam = VK_RCONTROL;

else

wParam = VK_LCONTROL;

break;

case VK_SHIFT:

/* EXTENDED trick doesn't work here */

if ( GetKeyState(VK_LSHIFT) & 0x8000 ) {

wParam = VK_LSHIFT;

} else if ( GetKeyState(VK_RSHIFT) & 0x8000 ) {

wParam = VK_RSHIFT;

} else {

/* Huh? */

}

break;

case VK_MENU:

if ( lParam&EXTENDED_KEYMASK )

wParam = VK_RMENU;

else

wParam = VK_LMENU;

break;

}

#ifdef NO_GETKEYBOARDSTATE

/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */

if ( SDL_TranslateUNICODE ) {

MSG m;

m.hwnd = hwnd;

m.message = msg;

m.wParam = wParam;

m.lParam = lParam;

m.time = 0;

if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {

GetMessage(&m, hwnd, 0, WM_USER);

wParam = m.wParam;

} else {

wParam = 0;

}

} else {

wParam = 0;

}

#endif /* NO_GETKEYBOARDSTATE */

posted = SDL_PrivateKeyboard(SDL_PRESSED,

TranslateKey(wParam,HIWORD(lParam),&keysym,1));

}

return(0);

case WM_SYSKEYUP:

case WM_KEYUP: {

SDL_keysym keysym;

switch (wParam) {

case VK_CONTROL:

if ( lParam&EXTENDED_KEYMASK )

wParam = VK_RCONTROL;

else

wParam = VK_LCONTROL;

break;

case VK_SHIFT:

/* EXTENDED trick doesn't work here */

wParam = VK_LSHIFT;

break;

case VK_MENU:

if ( lParam&EXTENDED_KEYMASK )

wParam = VK_RMENU;

else

wParam = VK_LMENU;

break;

}

posted = SDL_PrivateKeyboard(SDL_RELEASED,

TranslateKey(wParam,HIWORD(lParam),&keysym,0));

}

return(0);

default: {

/* Only post the event if we're watching for it */

if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {

SDL_SysWMmsg wmmsg;

SDL_VERSION(&wmmsg.version);

wmmsg.hwnd = hwnd;

wmmsg.msg = msg;

wmmsg.wParam = wParam;

wmmsg.lParam = lParam;

posted = SDL_PrivateSysWMEvent(&wmmsg);

/* DJM: If the user isn't watching for private

messages in her SDL event loop, then pass it

along to any win32 specific window proc.

*/

} else if (userWindowProc) {

return userWindowProc(hwnd, msg, wParam, lParam);

}

}

break;

}

return(DefWindowProc(hwnd, msg, wParam, lParam));

}

void DIB_PumpEvents(_THIS)

{

MSG msg;

while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {

if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {

DispatchMessage(&msg);

}

}

}

void DIB_InitOSKeymap(_THIS)

{

int i;

/* Map the VK keysyms */

for ( i=0; i<SDL_TABLESIZE(VK_keymap); ++i )

VK_keymap[i] = SDLK_UNKNOWN;

VK_keymap[VK_BACK] = SDLK_BACKSPACE;

VK_keymap[VK_TAB] = SDLK_TAB;

VK_keymap[VK_CLEAR] = SDLK_CLEAR;

VK_keymap[VK_RETURN] = SDLK_RETURN;

VK_keymap[VK_PAUSE] = SDLK_PAUSE;

VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;

VK_keymap[VK_SPACE] = SDLK_SPACE;

VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;

VK_keymap[VK_COMMA] = SDLK_COMMA;

VK_keymap[VK_MINUS] = SDLK_MINUS;

VK_keymap[VK_PERIOD] = SDLK_PERIOD;

VK_keymap[VK_SLASH] = SDLK_SLASH;

VK_keymap[VK_0] = SDLK_0;

VK_keymap[VK_1] = SDLK_1;

VK_keymap[VK_2] = SDLK_2;

VK_keymap[VK_3] = SDLK_3;

VK_keymap[VK_4] = SDLK_4;

VK_keymap[VK_5] = SDLK_5;

VK_keymap[VK_6] = SDLK_6;

VK_keymap[VK_7] = SDLK_7;

VK_keymap[VK_8] = SDLK_8;

VK_keymap[VK_9] = SDLK_9;

VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;

VK_keymap[VK_EQUALS] = SDLK_EQUALS;

VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;

VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;

VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;

VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;

VK_keymap[VK_A] = SDLK_a;

VK_keymap[VK_B] = SDLK_b;

VK_keymap[VK_C] = SDLK_c;

VK_keymap[VK_D] = SDLK_d;

VK_keymap[VK_E] = SDLK_e;

VK_keymap[VK_F] = SDLK_f;

VK_keymap[VK_G] = SDLK_g;

VK_keymap[VK_H] = SDLK_h;

VK_keymap[VK_I] = SDLK_i;

VK_keymap[VK_J] = SDLK_j;

VK_keymap[VK_K] = SDLK_k;

VK_keymap[VK_L] = SDLK_l;

VK_keymap[VK_M] = SDLK_m;

VK_keymap[VK_N] = SDLK_n;

VK_keymap[VK_O] = SDLK_o;

VK_keymap[VK_P] = SDLK_p;

VK_keymap[VK_Q] = SDLK_q;

VK_keymap[VK_R] = SDLK_r;

VK_keymap[VK_S] = SDLK_s;

VK_keymap[VK_T] = SDLK_t;

VK_keymap[VK_U] = SDLK_u;

VK_keymap[VK_V] = SDLK_v;

VK_keymap[VK_W] = SDLK_w;

VK_keymap[VK_X] = SDLK_x;

VK_keymap[VK_Y] = SDLK_y;

VK_keymap[VK_Z] = SDLK_z;

VK_keymap[VK_DELETE] = SDLK_DELETE;

VK_keymap[VK_NUMPAD0] = SDLK_KP0;

VK_keymap[VK_NUMPAD1] = SDLK_KP1;

VK_keymap[VK_NUMPAD2] = SDLK_KP2;

VK_keymap[VK_NUMPAD3] = SDLK_KP3;

VK_keymap[VK_NUMPAD4] = SDLK_KP4;

VK_keymap[VK_NUMPAD5] = SDLK_KP5;

VK_keymap[VK_NUMPAD6] = SDLK_KP6;

VK_keymap[VK_NUMPAD7] = SDLK_KP7;

VK_keymap[VK_NUMPAD8] = SDLK_KP8;

VK_keymap[VK_NUMPAD9] = SDLK_KP9;

VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;

VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;

VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;

VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;

VK_keymap[VK_ADD] = SDLK_KP_PLUS;

VK_keymap[VK_UP] = SDLK_UP;

VK_keymap[VK_DOWN] = SDLK_DOWN;

VK_keymap[VK_RIGHT] = SDLK_RIGHT;

VK_keymap[VK_LEFT] = SDLK_LEFT;

VK_keymap[VK_INSERT] = SDLK_INSERT;

VK_keymap[VK_HOME] = SDLK_HOME;

VK_keymap[VK_END] = SDLK_END;

VK_keymap[VK_PRIOR] = SDLK_PAGEUP;

VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;

VK_keymap[VK_F1] = SDLK_F1;

VK_keymap[VK_F2] = SDLK_F2;

VK_keymap[VK_F3] = SDLK_F3;

VK_keymap[VK_F4] = SDLK_F4;

VK_keymap[VK_F5] = SDLK_F5;

VK_keymap[VK_F6] = SDLK_F6;

VK_keymap[VK_F7] = SDLK_F7;

VK_keymap[VK_F8] = SDLK_F8;

VK_keymap[VK_F9] = SDLK_F9;

VK_keymap[VK_F10] = SDLK_F10;

VK_keymap[VK_F11] = SDLK_F11;

VK_keymap[VK_F12] = SDLK_F12;

VK_keymap[VK_F13] = SDLK_F13;

VK_keymap[VK_F14] = SDLK_F14;

VK_keymap[VK_F15] = SDLK_F15;

VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;

VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;

VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;

VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;

VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;

VK_keymap[VK_RCONTROL] = SDLK_RCTRL;

VK_keymap[VK_LCONTROL] = SDLK_LCTRL;

VK_keymap[VK_RMENU] = SDLK_RALT;

VK_keymap[VK_LMENU] = SDLK_LALT;

VK_keymap[VK_RWIN] = SDLK_RSUPER;

VK_keymap[VK_LWIN] = SDLK_LSUPER;

VK_keymap[VK_HELP] = SDLK_HELP;

#ifdef VK_PRINT

VK_keymap[VK_PRINT] = SDLK_PRINT;

#endif

VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;

VK_keymap[VK_CANCEL] = SDLK_BREAK;

VK_keymap[VK_APPS] = SDLK_MENU;

}

static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed)

{

/* Set the keysym information */

keysym->scancode = (unsigned char) scancode;

keysym->sym = VK_keymap[vkey];

keysym->mod = KMOD_NONE;

keysym->unicode = 0;

if ( pressed && SDL_TranslateUNICODE ) { /* Someday use ToUnicode() */

#ifdef NO_GETKEYBOARDSTATE

/* Uh oh, better hope the vkey is close enough.. */

keysym->unicode = vkey;

#else

BYTE keystate[256];

BYTE chars[2];

GetKeyboardState(keystate);

if ( ToAscii(vkey,scancode,keystate,(WORD *)chars,0) == 1 ) {

keysym->unicode = chars[0];

}

#endif /* NO_GETKEYBOARDSTATE */

}

return(keysym);

}

int DIB_CreateWindow(_THIS)

{

#ifndef CS_BYTEALIGNCLIENT

#define CS_BYTEALIGNCLIENT 0

#endif

SDL_RegisterApp("SDL_app", CS_BYTEALIGNCLIENT, 0);

if ( SDL_windowid ) {

SDL_Window = (HWND)strtol(SDL_windowid, NULL, 0);

/* DJM: we want all event's for the user specified

window to be handled by SDL.

*/

if (SDL_Window) {

userWindowProc = (WNDPROC)GetWindowLong(SDL_Window, GWL_WNDPROC);

SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage);

}

} else {

SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,

(WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),

0, 0, 0, 0, NULL, NULL, SDL_Instance, NULL);

if ( SDL_Window == NULL ) {

SDL_SetError("Couldn't create window");

return(-1);

}

ShowWindow(SDL_Window, SW_HIDE);

}

return(0);

}

void DIB_DestroyWindow(_THIS)

{

if ( SDL_windowid == NULL ) {

DestroyWindow(SDL_Window);

}

}