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flightgear/src/Main/fg_os_sdl.cxx
mfranz fa62bc3ec2 SDL 1.2.10 (released today!) doesn't report unicode on key release. Now
we have to ourselves which unicode code a key release even should fire.
(Tested with 1.2.9 and an 1.2.10. Please report any new keyboard problems.)
2006-05-17 21:21:38 +00:00

409 lines
12 KiB
C++

#include <stdlib.h>
#include <simgear/compiler.h>
#include <simgear/structure/exception.hxx>
#include <simgear/debug/logstream.hxx>
#include <SDL/SDL.h>
#include <plib/pu.h>
#include "fg_os.hxx"
//
// fg_os callback registration APIs
//
static fgIdleHandler IdleHandler = 0;
static fgDrawHandler DrawHandler = 0;
static fgWindowResizeHandler WindowResizeHandler = 0;
static fgKeyHandler KeyHandler = 0;
static fgMouseClickHandler MouseClickHandler = 0;
static fgMouseMotionHandler MouseMotionHandler = 0;
static int CurrentModifiers = 0;
static int CurrentMouseX = 0;
static int CurrentMouseY = 0;
static int CurrentMouseCursor = MOUSE_CURSOR_POINTER;
static bool NeedRedraw = false;
static int VidMask = SDL_OPENGL|SDL_RESIZABLE;
void fgRegisterIdleHandler(fgIdleHandler func)
{
IdleHandler = func;
}
void fgRegisterDrawHandler(fgDrawHandler func)
{
DrawHandler = func;
NeedRedraw = true;
}
void fgRegisterWindowResizeHandler(fgWindowResizeHandler func)
{
WindowResizeHandler = func;
}
void fgRegisterKeyHandler(fgKeyHandler func)
{
KeyHandler = func;
}
void fgRegisterMouseClickHandler(fgMouseClickHandler func)
{
MouseClickHandler = func;
}
void fgRegisterMouseMotionHandler(fgMouseMotionHandler func)
{
MouseMotionHandler = func;
}
//
// fg_os implementation
//
static void initCursors();
void fgOSOpenWindow(int w, int h, int bpp,
bool alpha, bool stencil, bool fullscreen)
{
int cbits = (bpp <= 16) ? 5 : 8;
int zbits = (bpp <= 16) ? 16 : 24;
if (SDL_Init(SDL_INIT_VIDEO|SDL_INIT_NOPARACHUTE) == -1)
throw sg_throwable(string("Failed to initialize SDL: ")
+ SDL_GetError());
atexit(SDL_Quit);
SDL_WM_SetCaption("FlightGear", "FlightGear");
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, cbits);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, cbits);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, cbits);
if(alpha)
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
if(bpp > 16 && stencil)
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, zbits);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
if(fullscreen) {
VidMask |= SDL_FULLSCREEN;
}
if (SDL_SetVideoMode(w, h, 16, VidMask) == 0)
throw sg_throwable(string("Failed to set SDL video mode: ")
+ SDL_GetError());
// This enables keycode translation (e.g. capital letters when
// shift is pressed, as well as i18n input methods). Eventually,
// we may want to port the input maps to specify <mod-shift>
// explicitly, and will turn this off.
SDL_EnableUNICODE(1);
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
initCursors();
fgSetMouseCursor(MOUSE_CURSOR_POINTER);
// FIXME: we may not get what we asked for (especially in full
// screen modes), so these need to be propagated back to the
// property tree for the rest of the code to inspect...
//
// SDL_Surface* screen = SDL_GetVideoSurface();
// int realw = screen->w;
// int realh = screen->h;
}
struct keydata {
keydata() : unicode(0), mod(0) {};
Uint16 unicode;
unsigned int mod;
} keys[SDLK_LAST];
static void handleKey(int key, int raw, int keyup)
{
int modmask = 0;
switch(key) {
case SDLK_RSHIFT: modmask = KEYMOD_SHIFT; break;
case SDLK_LSHIFT: modmask = KEYMOD_SHIFT; break;
case SDLK_RCTRL: modmask = KEYMOD_CTRL; break;
case SDLK_LCTRL: modmask = KEYMOD_CTRL; break;
case SDLK_RALT: modmask = KEYMOD_ALT; break;
case SDLK_LALT: modmask = KEYMOD_ALT; break;
case SDLK_LEFT: key = PU_KEY_LEFT; break;
case SDLK_UP: key = PU_KEY_UP; break;
case SDLK_RIGHT: key = PU_KEY_RIGHT; break;
case SDLK_DOWN: key = PU_KEY_DOWN; break;
case SDLK_PAGEUP: key = PU_KEY_PAGE_UP; break;
case SDLK_PAGEDOWN: key = PU_KEY_PAGE_DOWN; break;
case SDLK_HOME: key = PU_KEY_HOME; break;
case SDLK_END: key = PU_KEY_END; break;
case SDLK_INSERT: key = PU_KEY_INSERT; break;
case SDLK_F1: key = PU_KEY_F1; break;
case SDLK_F2: key = PU_KEY_F2; break;
case SDLK_F3: key = PU_KEY_F3; break;
case SDLK_F4: key = PU_KEY_F4; break;
case SDLK_F5: key = PU_KEY_F5; break;
case SDLK_F6: key = PU_KEY_F6; break;
case SDLK_F7: key = PU_KEY_F7; break;
case SDLK_F8: key = PU_KEY_F8; break;
case SDLK_F9: key = PU_KEY_F9; break;
case SDLK_F10: key = PU_KEY_F10; break;
case SDLK_F11: key = PU_KEY_F11; break;
case SDLK_F12: key = PU_KEY_F12; break;
}
// Keypad codes. This is a situation where we *don't* want the
// Unicode cooking for our input. Oddly, neither PUI nor Glut
// define these anywhere, so I lifted the numbers out of
// FlightGear's keyboard.xml. Some unused code are therefore
// missing.
switch(raw) {
case SDLK_KP0: key = 364; break;
case SDLK_KP1: key = 363; break;
case SDLK_KP2: key = 359; break;
case SDLK_KP3: key = 361; break;
case SDLK_KP4: key = 356; break;
case SDLK_KP5: key = 309; break;
case SDLK_KP6: key = 358; break;
case SDLK_KP7: key = 362; break;
case SDLK_KP8: key = 357; break;
case SDLK_KP9: key = 360; break;
case SDLK_KP_ENTER: key = 269; break;
}
int keymod = 0;
if(keyup) {
CurrentModifiers &= ~modmask;
keymod = CurrentModifiers | KEYMOD_RELEASED;
} else {
CurrentModifiers |= modmask;
keymod = CurrentModifiers & ~KEYMOD_RELEASED;
}
if(modmask == 0 && KeyHandler) {
if (keymod & KEYMOD_RELEASED) {
if (keys[raw].mod) {
key = keys[raw].unicode;
keys[raw].mod = 0;
}
} else {
keys[raw].mod = keymod;
keys[raw].unicode = key;
}
(*KeyHandler)(key, keymod, CurrentMouseX, CurrentMouseY);
}
}
// FIXME: Integrate with existing fgExit() in util.cxx.
void fgOSExit(int code)
{
exit(code);
}
void fgOSMainLoop()
{
while(1) {
SDL_Event e;
int key;
while(SDL_PollEvent(&e)) {
switch(e.type) {
case SDL_QUIT:
fgOSExit(0);
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
key = e.key.keysym.unicode;
if(key == 0) key = e.key.keysym.sym;
handleKey(key, e.key.keysym.sym, e.key.state == SDL_RELEASED);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
// Note offset: SDL uses buttons 1,2,3 not 0,1,2
CurrentMouseX = e.button.x;
CurrentMouseY = e.button.y;
if(MouseClickHandler)
(*MouseClickHandler)(e.button.button - 1,
e.button.state == SDL_RELEASED,
e.button.x, e.button.y);
break;
case SDL_MOUSEMOTION:
CurrentMouseX = e.motion.x;
CurrentMouseY = e.motion.y;
if(MouseMotionHandler)
(*MouseMotionHandler)(e.motion.x, e.motion.y);
break;
case SDL_VIDEORESIZE:
if (SDL_SetVideoMode(e.resize.w, e.resize.h, 16, VidMask) == 0)
throw sg_throwable(string("Failed to set SDL video mode: ")
+ SDL_GetError());
if (WindowResizeHandler)
(*WindowResizeHandler)(e.resize.w, e.resize.h);
break;
}
}
if(IdleHandler) (*IdleHandler)();
if(NeedRedraw && DrawHandler) {
(*DrawHandler)();
SDL_GL_SwapBuffers();
NeedRedraw = false;
}
}
}
int fgGetKeyModifiers()
{
return CurrentModifiers;
}
void fgWarpMouse(int x, int y)
{
SDL_Event e[10];
SDL_PumpEvents();
SDL_PeepEvents(e, 10, SDL_GETEVENT, SDL_MOUSEMOTIONMASK);
SDL_WarpMouse(x, y);
}
void fgRequestRedraw()
{
NeedRedraw = true;
}
void fgOSInit(int* argc, char** argv)
{
// Nothing to do here. SDL has no command line options.
}
void fgOSFullScreen()
{
// Noop. SDL must set fullscreen at window open time and cannot
// change modes.
}
static struct cursor_rec {
int name;
SDL_Cursor* sdlCursor;
int w;
int h;
int hotx;
int hoty;
char *img[32]; // '.' == white, '#' == black, ' ' == transparent
} cursors[] = {
{ MOUSE_CURSOR_POINTER, 0, // must be first!
10, 16, 1, 1,
{ ".. ",
".#. ",
".##. ",
".###. ",
".####. ",
".#####. ",
".######. ",
".#######. ",
".########.",
".#####....",
".##.##. ",
".#. .##. ",
".. .##. ",
" .##. ",
" .##. ",
" .. " } },
{ MOUSE_CURSOR_CROSSHAIR, 0,
17, 17, 8, 8,
{ " ... ",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
"........#........",
".#######.#######.",
"........#........",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
" .#. ",
" ... " } },
{ MOUSE_CURSOR_WAIT, 0,
16, 16, 7, 7,
{ " .########. ",
" .########. ",
" .########. ",
" .##########. ",
".##....#...##. ",
"##.....#....##..",
"#......#.....###",
"#.....###....###",
"#.....###....###",
"#....#.......###",
"##..#.......##..",
".##........##. ",
" .##########. ",
" .########. ",
" .########. ",
" .########. " } },
{ MOUSE_CURSOR_LEFTRIGHT, 0,
17, 9, 8, 4,
{ " .. .. ",
" .#. .#. ",
" .##.......##. ",
" .#############. ",
".####.......####.",
" .#############. ",
" .##.......##. ",
" .#. .#. ",
" .. .. " } },
{ MOUSE_CURSOR_NONE, 0, // must come last!
1, 1, 0, 0, { " " } },
};
#define NCURSORS (sizeof(cursors)/sizeof(struct cursor_rec))
void fgSetMouseCursor(int cursor)
{
if(cursor == MOUSE_CURSOR_NONE) {
SDL_ShowCursor(SDL_DISABLE);
return;
}
SDL_ShowCursor(SDL_ENABLE);
for(unsigned int i=0; i<NCURSORS; i++) {
if(cursor == cursors[i].name) {
CurrentMouseCursor = cursor;
SDL_SetCursor(cursors[i].sdlCursor);
return;
}
}
// Default to pointer
CurrentMouseCursor = MOUSE_CURSOR_POINTER;
SDL_SetCursor(cursors[0].sdlCursor);
}
int fgGetMouseCursor()
{
return CurrentMouseCursor;
}
static void initCursors()
{
unsigned char mask[128], img[128];
for(unsigned int i=0; i<NCURSORS; i++) {
if(cursors[i].name == MOUSE_CURSOR_NONE) break;
for(int j=0; j<128; j++) mask[j] = img[j] = 0;
for(int y=0; y<cursors[i].h; y++) {
for(int x=0; x<cursors[i].w; x++) {
int byte = (4 * y) + (x >> 3);
int bit = 1 << (7 - (x & 7));
int pix = cursors[i].img[y][x];
if(pix != ' ') { mask[byte] |= bit; }
if(pix == '#') { img[byte] |= bit; }
}
}
cursors[i].sdlCursor = SDL_CreateCursor(img, mask, 32, 32,
cursors[i].hotx,
cursors[i].hoty);
}
}