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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "backends/platform/sdl/sdl.h"
#include "common/util.h"
#include "common/events.h"
#include "graphics/scaler/aspect.h" // for aspect2Real
// FIXME move joystick defines out and replace with confile file options
// we should really allow users to map any key to a joystick button
#define JOY_DEADZONE 3200
#ifndef __SYMBIAN32__ // Symbian wants dialog joystick i.e cursor for movement/selection
#define JOY_ANALOG
#endif
// #define JOY_INVERT_Y
#define JOY_XAXIS 0
#define JOY_YAXIS 1
// buttons
#define JOY_BUT_LMOUSE 0
#define JOY_BUT_RMOUSE 2
#define JOY_BUT_ESCAPE 3
#define JOY_BUT_PERIOD 1
#define JOY_BUT_SPACE 4
#define JOY_BUT_F5 5
static int mapKey(SDLKey key, SDLMod mod, Uint16 unicode) {
if (key >= SDLK_F1 && key <= SDLK_F9) {
return key - SDLK_F1 + Common::ASCII_F1;
} else if (key >= SDLK_KP0 && key <= SDLK_KP9) {
return key - SDLK_KP0 + '0';
} else if (key >= SDLK_UP && key <= SDLK_PAGEDOWN) {
return key;
} else if (unicode) {
return unicode;
} else if (key >= 'a' && key <= 'z' && (mod & KMOD_SHIFT)) {
return key & ~0x20;
} else if (key >= SDLK_NUMLOCK && key <= SDLK_EURO) {
return 0;
}
return key;
}
void OSystem_SDL::fillMouseEvent(Common::Event &event, int x, int y) {
event.mouse.x = x;
event.mouse.y = y;
// Update the "keyboard mouse" coords
_km.x = x;
_km.y = y;
// Adjust for the screen scaling
/*if (!_overlayVisible) { // FIXME
event.mouse.x /= _videoMode.scaleFactor;
event.mouse.y /= _videoMode.scaleFactor;
if (_videoMode.aspectRatioCorrection)
event.mouse.y = aspect2Real(event.mouse.y);
}*/
}
void OSystem_SDL::handleKbdMouse() {
uint32 curTime = getMillis();
if (curTime >= _km.last_time + _km.delay_time) {
_km.last_time = curTime;
if (_km.x_down_count == 1) {
_km.x_down_time = curTime;
_km.x_down_count = 2;
}
if (_km.y_down_count == 1) {
_km.y_down_time = curTime;
_km.y_down_count = 2;
}
if (_km.x_vel || _km.y_vel) {
if (_km.x_down_count) {
if (curTime > _km.x_down_time + _km.delay_time * 12) {
if (_km.x_vel > 0)
_km.x_vel++;
else
_km.x_vel--;
} else if (curTime > _km.x_down_time + _km.delay_time * 8) {
if (_km.x_vel > 0)
_km.x_vel = 5;
else
_km.x_vel = -5;
}
}
if (_km.y_down_count) {
if (curTime > _km.y_down_time + _km.delay_time * 12) {
if (_km.y_vel > 0)
_km.y_vel++;
else
_km.y_vel--;
} else if (curTime > _km.y_down_time + _km.delay_time * 8) {
if (_km.y_vel > 0)
_km.y_vel = 5;
else
_km.y_vel = -5;
}
}
_km.x += _km.x_vel;
_km.y += _km.y_vel;
if (_km.x < 0) {
_km.x = 0;
_km.x_vel = -1;
_km.x_down_count = 1;
} else if (_km.x > _km.x_max) {
_km.x = _km.x_max;
_km.x_vel = 1;
_km.x_down_count = 1;
}
if (_km.y < 0) {
_km.y = 0;
_km.y_vel = -1;
_km.y_down_count = 1;
} else if (_km.y > _km.y_max) {
_km.y = _km.y_max;
_km.y_vel = 1;
_km.y_down_count = 1;
}
SDL_WarpMouse((Uint16)_km.x, (Uint16)_km.y);
}
}
}
static void SDLModToOSystemKeyFlags(SDLMod mod, Common::Event &event) {
event.kbd.flags = 0;
#ifdef LINUPY
// Yopy has no ALT key, steal the SHIFT key
// (which isn't used much anyway)
if (mod & KMOD_SHIFT)
event.kbd.flags |= Common::KBD_ALT;
#else
if (mod & KMOD_SHIFT)
event.kbd.flags |= Common::KBD_SHIFT;
if (mod & KMOD_ALT)
event.kbd.flags |= Common::KBD_ALT;
#endif
if (mod & KMOD_CTRL)
event.kbd.flags |= Common::KBD_CTRL;
// Sticky flags
if (mod & KMOD_NUM)
event.kbd.flags |= Common::KBD_NUM;
if (mod & KMOD_CAPS)
event.kbd.flags |= Common::KBD_CAPS;
}
bool OSystem_SDL::pollEvent(Common::Event &event) {
SDL_Event ev;
handleKbdMouse();
// If the screen mode changed, send an Common::EVENT_SCREEN_CHANGED
if (_graphicsManager->_modeChanged) {
_graphicsManager->_modeChanged = false;
event.type = Common::EVENT_SCREEN_CHANGED;
return true;
}
while (SDL_PollEvent(&ev)) {
preprocessEvents(&ev);
if (dispatchSDLEvent(ev, event))
return true;
}
return false;
}
bool OSystem_SDL::dispatchSDLEvent(SDL_Event &ev, Common::Event &event) {
switch (ev.type) {
case SDL_KEYDOWN:
return handleKeyDown(ev, event);
case SDL_KEYUP:
return handleKeyUp(ev, event);
case SDL_MOUSEMOTION:
return handleMouseMotion(ev, event);
case SDL_MOUSEBUTTONDOWN:
return handleMouseButtonDown(ev, event);
case SDL_MOUSEBUTTONUP:
return handleMouseButtonUp(ev, event);
case SDL_JOYBUTTONDOWN:
return handleJoyButtonDown(ev, event);
case SDL_JOYBUTTONUP:
return handleJoyButtonUp(ev, event);
case SDL_JOYAXISMOTION:
return handleJoyAxisMotion(ev, event);
case SDL_VIDEOEXPOSE:
_graphicsManager->_forceFull = true;
break;
case SDL_QUIT:
event.type = Common::EVENT_QUIT;
return true;
}
return false;
}
bool OSystem_SDL::handleKeyDown(SDL_Event &ev, Common::Event &event) {
SDLModToOSystemKeyFlags(SDL_GetModState(), event);
// Handle scroll lock as a key modifier
if (ev.key.keysym.sym == SDLK_SCROLLOCK)
_scrollLock = !_scrollLock;
if (_scrollLock)
event.kbd.flags |= Common::KBD_SCRL;
// Alt-Return and Alt-Enter toggle full screen mode
// TODO: make a function in graphics manager for this
/*if (event.kbd.hasFlags(Common::KBD_ALT) && (ev.key.keysym.sym == SDLK_RETURN || ev.key.keysym.sym == SDLK_KP_ENTER)) {
beginGFXTransaction();
setFullscreenMode(!_videoMode.fullscreen);
endGFXTransaction();
#ifdef USE_OSD
if (_videoMode.fullscreen)
displayMessageOnOSD("Fullscreen mode");
else
displayMessageOnOSD("Windowed mode");
#endif
return false;
}*/
// Alt-S: Create a screenshot
// TODO: make a function in graphics manager for this
/*if (event.kbd.hasFlags(Common::KBD_ALT) && ev.key.keysym.sym == 's') {
char filename[20];
for (int n = 0;; n++) {
SDL_RWops *file;
sprintf(filename, "scummvm%05d.bmp", n);
file = SDL_RWFromFile(filename, "r");
if (!file)
break;
SDL_RWclose(file);
}
if (saveScreenshot(filename))
printf("Saved '%s'\n", filename);
else
printf("Could not save screenshot!\n");
return false;
}*/
// Ctrl-m toggles mouse capture
if (event.kbd.hasFlags(Common::KBD_CTRL) && ev.key.keysym.sym == 'm') {
toggleMouseGrab();
return false;
}
#if defined(MACOSX)
// On Macintosh', Cmd-Q quits
if ((ev.key.keysym.mod & KMOD_META) && ev.key.keysym.sym == 'q') {
event.type = Common::EVENT_QUIT;
return true;
}
#elif defined(UNIX)
// On other unices, Control-Q quits
if ((ev.key.keysym.mod & KMOD_CTRL) && ev.key.keysym.sym == 'q') {
event.type = Common::EVENT_QUIT;
return true;
}
#else
// Ctrl-z and Alt-X quit
if ((event.kbd.hasFlags(Common::KBD_CTRL) && ev.key.keysym.sym == 'z') || (event.kbd.hasFlags(Common::KBD_ALT) && ev.key.keysym.sym == 'x')) {
event.type = Common::EVENT_QUIT;
return true;
}
#endif
if ((ev.key.keysym.mod & KMOD_CTRL) && ev.key.keysym.sym == 'u') {
event.type = Common::EVENT_MUTE;
return true;
}
// Ctrl-Alt-<key> will change the GFX mode
if ((event.kbd.flags & (Common::KBD_CTRL|Common::KBD_ALT)) == (Common::KBD_CTRL|Common::KBD_ALT)) {
if (_graphicsManager->handleScalerHotkeys(ev.key))
return false;
}
if (remapKey(ev, event))
return true;
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = (Common::KeyCode)ev.key.keysym.sym;
event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode);
return true;
}
bool OSystem_SDL::handleKeyUp(SDL_Event &ev, Common::Event &event) {
if (remapKey(ev, event))
return true;
event.type = Common::EVENT_KEYUP;
event.kbd.keycode = (Common::KeyCode)ev.key.keysym.sym;
event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode);
// Ctrl-Alt-<key> will change the GFX mode
SDLModToOSystemKeyFlags(SDL_GetModState(), event);
// Set the scroll lock sticky flag
if (_scrollLock)
event.kbd.flags |= Common::KBD_SCRL;
if (_graphicsManager->isScalerHotkey(event))
// Swallow these key up events
return false;
return true;
}
bool OSystem_SDL::handleMouseMotion(SDL_Event &ev, Common::Event &event) {
event.type = Common::EVENT_MOUSEMOVE;
fillMouseEvent(event, ev.motion.x, ev.motion.y);
_graphicsManager->setMousePos(event.mouse.x, event.mouse.y);
return true;
}
bool OSystem_SDL::handleMouseButtonDown(SDL_Event &ev, Common::Event &event) {
if (ev.button.button == SDL_BUTTON_LEFT)
event.type = Common::EVENT_LBUTTONDOWN;
else if (ev.button.button == SDL_BUTTON_RIGHT)
event.type = Common::EVENT_RBUTTONDOWN;
#if defined(SDL_BUTTON_WHEELUP) && defined(SDL_BUTTON_WHEELDOWN)
else if (ev.button.button == SDL_BUTTON_WHEELUP)
event.type = Common::EVENT_WHEELUP;
else if (ev.button.button == SDL_BUTTON_WHEELDOWN)
event.type = Common::EVENT_WHEELDOWN;
#endif
#if defined(SDL_BUTTON_MIDDLE)
else if (ev.button.button == SDL_BUTTON_MIDDLE)
event.type = Common::EVENT_MBUTTONDOWN;
#endif
else
return false;
fillMouseEvent(event, ev.button.x, ev.button.y);
return true;
}
bool OSystem_SDL::handleMouseButtonUp(SDL_Event &ev, Common::Event &event) {
if (ev.button.button == SDL_BUTTON_LEFT)
event.type = Common::EVENT_LBUTTONUP;
else if (ev.button.button == SDL_BUTTON_RIGHT)
event.type = Common::EVENT_RBUTTONUP;
#if defined(SDL_BUTTON_MIDDLE)
else if (ev.button.button == SDL_BUTTON_MIDDLE)
event.type = Common::EVENT_MBUTTONUP;
#endif
else
return false;
fillMouseEvent(event, ev.button.x, ev.button.y);
return true;
}
bool OSystem_SDL::handleJoyButtonDown(SDL_Event &ev, Common::Event &event) {
if (ev.jbutton.button == JOY_BUT_LMOUSE) {
event.type = Common::EVENT_LBUTTONDOWN;
fillMouseEvent(event, _km.x, _km.y);
} else if (ev.jbutton.button == JOY_BUT_RMOUSE) {
event.type = Common::EVENT_RBUTTONDOWN;
fillMouseEvent(event, _km.x, _km.y);
} else {
event.type = Common::EVENT_KEYDOWN;
switch (ev.jbutton.button) {
case JOY_BUT_ESCAPE:
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0);
break;
case JOY_BUT_PERIOD:
event.kbd.keycode = Common::KEYCODE_PERIOD;
event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0);
break;
case JOY_BUT_SPACE:
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0);
break;
case JOY_BUT_F5:
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
break;
}
}
return true;
}
bool OSystem_SDL::handleJoyButtonUp(SDL_Event &ev, Common::Event &event) {
if (ev.jbutton.button == JOY_BUT_LMOUSE) {
event.type = Common::EVENT_LBUTTONUP;
fillMouseEvent(event, _km.x, _km.y);
} else if (ev.jbutton.button == JOY_BUT_RMOUSE) {
event.type = Common::EVENT_RBUTTONUP;
fillMouseEvent(event, _km.x, _km.y);
} else {
event.type = Common::EVENT_KEYUP;
switch (ev.jbutton.button) {
case JOY_BUT_ESCAPE:
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0);
break;
case JOY_BUT_PERIOD:
event.kbd.keycode = Common::KEYCODE_PERIOD;
event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0);
break;
case JOY_BUT_SPACE:
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0);
break;
case JOY_BUT_F5:
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
break;
}
}
return true;
}
bool OSystem_SDL::handleJoyAxisMotion(SDL_Event &ev, Common::Event &event) {
int axis = ev.jaxis.value;
if ( axis > JOY_DEADZONE) {
axis -= JOY_DEADZONE;
event.type = Common::EVENT_MOUSEMOVE;
} else if ( axis < -JOY_DEADZONE ) {
axis += JOY_DEADZONE;
event.type = Common::EVENT_MOUSEMOVE;
} else
axis = 0;
if ( ev.jaxis.axis == JOY_XAXIS) {
#ifdef JOY_ANALOG
_km.x_vel = axis/2000;
_km.x_down_count = 0;
#else
if (axis != 0) {
_km.x_vel = (axis > 0) ? 1:-1;
_km.x_down_count = 1;
} else {
_km.x_vel = 0;
_km.x_down_count = 0;
}
#endif
} else if (ev.jaxis.axis == JOY_YAXIS) {
#ifndef JOY_INVERT_Y
axis = -axis;
#endif
#ifdef JOY_ANALOG
_km.y_vel = -axis / 2000;
_km.y_down_count = 0;
#else
if (axis != 0) {
_km.y_vel = (-axis > 0) ? 1: -1;
_km.y_down_count = 1;
} else {
_km.y_vel = 0;
_km.y_down_count = 0;
}
#endif
}
fillMouseEvent(event, _km.x, _km.y);
return true;
}
bool OSystem_SDL::remapKey(SDL_Event &ev, Common::Event &event) {
#ifdef LINUPY
// On Yopy map the End button to quit
if ((ev.key.keysym.sym == 293)) {
event.type = Common::EVENT_QUIT;
return true;
}
// Map menu key to f5 (scumm menu)
if (ev.key.keysym.sym == 306) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
return true;
}
// Map action key to action
if (ev.key.keysym.sym == 291) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_TAB;
event.kbd.ascii = mapKey(SDLK_TAB, ev.key.keysym.mod, 0);
return true;
}
// Map OK key to skip cinematic
if (ev.key.keysym.sym == 292) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_ESCAPE;
event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0);
return true;
}
#endif
#ifdef QTOPIA
// Quit on fn+backspace on zaurus
if (ev.key.keysym.sym == 127) {
event.type = Common::EVENT_QUIT;
return true;
}
// Map menu key (f11) to f5 (scumm menu)
if (ev.key.keysym.sym == SDLK_F11) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_F5;
event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0);
}
// Nap center (space) to tab (default action )
// I wanted to map the calendar button but the calendar comes up
//
else if (ev.key.keysym.sym == SDLK_SPACE) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_TAB;
event.kbd.ascii = mapKey(SDLK_TAB, ev.key.keysym.mod, 0);
}
// Since we stole space (pause) above we'll rebind it to the tab key on the keyboard
else if (ev.key.keysym.sym == SDLK_TAB) {
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = Common::KEYCODE_SPACE;
event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0);
} else {
// Let the events fall through if we didn't change them, this may not be the best way to
// set it up, but i'm not sure how sdl would like it if we let if fall through then redid it though.
// and yes i have an huge terminal size so i dont wrap soon enough.
event.type = Common::EVENT_KEYDOWN;
event.kbd.keycode = ev.key.keysym.sym;
event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode);
}
#endif
return false;
}
void OSystem_SDL::toggleMouseGrab() {
if (SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_OFF)
SDL_WM_GrabInput(SDL_GRAB_ON);
else
SDL_WM_GrabInput(SDL_GRAB_OFF);
}
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