diff options
Diffstat (limited to 'backends/platform/sdl/events.cpp')
| -rw-r--r-- | backends/platform/sdl/events.cpp | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/backends/platform/sdl/events.cpp b/backends/platform/sdl/events.cpp new file mode 100644 index 0000000000..4fa02907db --- /dev/null +++ b/backends/platform/sdl/events.cpp @@ -0,0 +1,510 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2001 Ludvig Strigeus + * Copyright (C) 2001-2006 The ScummVM project + * + * 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-common.h" +#include "common/util.h" + +// 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 + 315; + } 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(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) { + event.mouse.x /= _scaleFactor; + event.mouse.y /= _scaleFactor; + if (_adjustAspectRatio) + 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(_km.x, _km.y); + } + } +} + +static byte SDLModToOSystemKeyFlags(SDLMod mod) { + byte b = 0; +#ifdef LINUPY + // Yopy has no ALT key, steal the SHIFT key + // (which isn't used much anyway) + if (mod & KMOD_SHIFT) + b |= OSystem::KBD_ALT; +#else + if (mod & KMOD_SHIFT) + b |= OSystem::KBD_SHIFT; + if (mod & KMOD_ALT) + b |= OSystem::KBD_ALT; +#endif + if (mod & KMOD_CTRL) + b |= OSystem::KBD_CTRL; + + return b; +} + +bool OSystem_SDL::pollEvent(Event &event) { + SDL_Event ev; + int axis; + byte b = 0; + + handleKbdMouse(); + + // If the screen mode changed, send an EVENT_SCREEN_CHANGED + if (_modeChanged) { + _modeChanged = false; + event.type = EVENT_SCREEN_CHANGED; + return true; + } + + while(SDL_PollEvent(&ev)) { + switch(ev.type) { + case SDL_KEYDOWN:{ + b = event.kbd.flags = SDLModToOSystemKeyFlags(SDL_GetModState()); + + // Alt-Return and Alt-Enter toggle full screen mode + if (b == KBD_ALT && (ev.key.keysym.sym == SDLK_RETURN + || ev.key.keysym.sym == SDLK_KP_ENTER)) { + setFullscreenMode(!_fullscreen); +#ifdef USE_OSD + if (_fullscreen) + displayMessageOnOSD("Fullscreen mode"); + else + displayMessageOnOSD("Windowed mode"); +#endif + + break; + } + + // Alt-S: Create a screenshot + if (b == 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"); + break; + } + + // Ctrl-m toggles mouse capture + if (b == KBD_CTRL && ev.key.keysym.sym == 'm') { + toggleMouseGrab(); + break; + } + +#ifdef MACOSX + // On Macintosh', Cmd-Q quits + if ((ev.key.keysym.mod & KMOD_META) && ev.key.keysym.sym == 'q') { + event.type = 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 = EVENT_QUIT; + return true; + } +#else + // Ctrl-z and Alt-X quit + if ((b == KBD_CTRL && ev.key.keysym.sym == 'z') || (b == KBD_ALT && ev.key.keysym.sym == 'x')) { + event.type = EVENT_QUIT; + return true; + } +#endif + + // Ctrl-Alt-<key> will change the GFX mode + if ((b & (KBD_CTRL|KBD_ALT)) == (KBD_CTRL|KBD_ALT)) { + + handleScalerHotkeys(ev.key); + break; + } + const bool event_complete = remapKey(ev,event); + + if (event_complete) + return true; + + event.type = 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); + + return true; + } + case SDL_KEYUP: + { + const bool event_complete = remapKey(ev,event); + + if (event_complete) + return true; + + event.type = EVENT_KEYUP; + event.kbd.keycode = ev.key.keysym.sym; + event.kbd.ascii = mapKey(ev.key.keysym.sym, ev.key.keysym.mod, ev.key.keysym.unicode); + b = event.kbd.flags = SDLModToOSystemKeyFlags(SDL_GetModState()); + + // Ctrl-Alt-<key> will change the GFX mode + if ((b & (KBD_CTRL|KBD_ALT)) == (KBD_CTRL|KBD_ALT)) { + // Swallow these key up events + break; + } + + return true; + } + case SDL_MOUSEMOTION: + event.type = EVENT_MOUSEMOVE; + fillMouseEvent(event, ev.motion.x, ev.motion.y); + + setMousePos(event.mouse.x, event.mouse.y); + return true; + + case SDL_MOUSEBUTTONDOWN: + if (ev.button.button == SDL_BUTTON_LEFT) + event.type = EVENT_LBUTTONDOWN; + else if (ev.button.button == SDL_BUTTON_RIGHT) + event.type = EVENT_RBUTTONDOWN; +#if defined(SDL_BUTTON_WHEELUP) && defined(SDL_BUTTON_WHEELDOWN) + else if (ev.button.button == SDL_BUTTON_WHEELUP) + event.type = EVENT_WHEELUP; + else if (ev.button.button == SDL_BUTTON_WHEELDOWN) + event.type = EVENT_WHEELDOWN; +#endif + else + break; + + fillMouseEvent(event, ev.button.x, ev.button.y); + + return true; + + case SDL_MOUSEBUTTONUP: + if (ev.button.button == SDL_BUTTON_LEFT) + event.type = EVENT_LBUTTONUP; + else if (ev.button.button == SDL_BUTTON_RIGHT) + event.type = EVENT_RBUTTONUP; + else + break; + fillMouseEvent(event, ev.button.x, ev.button.y); + + return true; + + case SDL_JOYBUTTONDOWN: + if (ev.jbutton.button == JOY_BUT_LMOUSE) { + event.type = EVENT_LBUTTONDOWN; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { + event.type = EVENT_RBUTTONDOWN; + fillMouseEvent(event, _km.x, _km.y); + } else { + event.type = EVENT_KEYDOWN; + switch (ev.jbutton.button) { + case JOY_BUT_ESCAPE: + event.kbd.keycode = SDLK_ESCAPE; + event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0); + break; + case JOY_BUT_PERIOD: + event.kbd.keycode = SDLK_PERIOD; + event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0); + break; + case JOY_BUT_SPACE: + event.kbd.keycode = SDLK_SPACE; + event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0); + break; + case JOY_BUT_F5: + event.kbd.keycode = SDLK_F5; + event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0); + break; + } + } + return true; + + case SDL_JOYBUTTONUP: + if (ev.jbutton.button == JOY_BUT_LMOUSE) { + event.type = EVENT_LBUTTONUP; + fillMouseEvent(event, _km.x, _km.y); + } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { + event.type = EVENT_RBUTTONUP; + fillMouseEvent(event, _km.x, _km.y); + } else { + event.type = EVENT_KEYUP; + switch (ev.jbutton.button) { + case JOY_BUT_ESCAPE: + event.kbd.keycode = SDLK_ESCAPE; + event.kbd.ascii = mapKey(SDLK_ESCAPE, ev.key.keysym.mod, 0); + break; + case JOY_BUT_PERIOD: + event.kbd.keycode = SDLK_PERIOD; + event.kbd.ascii = mapKey(SDLK_PERIOD, ev.key.keysym.mod, 0); + break; + case JOY_BUT_SPACE: + event.kbd.keycode = SDLK_SPACE; + event.kbd.ascii = mapKey(SDLK_SPACE, ev.key.keysym.mod, 0); + break; + case JOY_BUT_F5: + event.kbd.keycode = SDLK_F5; + event.kbd.ascii = mapKey(SDLK_F5, ev.key.keysym.mod, 0); + break; + } + } + return true; + + case SDL_JOYAXISMOTION: + axis = ev.jaxis.value; + if ( axis > JOY_DEADZONE) { + axis -= JOY_DEADZONE; + event.type = EVENT_MOUSEMOVE; + } else if ( axis < -JOY_DEADZONE ) { + axis += JOY_DEADZONE; + event.type = 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; + + case SDL_VIDEOEXPOSE: + _forceFull = true; + break; + + case SDL_QUIT: + event.type = EVENT_QUIT; + return true; + } + } + return false; +} + +bool OSystem_SDL::remapKey(SDL_Event &ev,Event &event) { +#ifdef LINUPY + // On Yopy map the End button to quit + if ((ev.key.keysym.sym == 293)) { + event.type = EVENT_QUIT; + return true; + } + // Map menu key to f5 (scumm menu) + if (ev.key.keysym.sym == 306) { + event.type = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = EVENT_QUIT; + return true; + } + + // Map menu key (f11) to f5 (scumm menu) + if (ev.key.keysym.sym == SDLK_F11) { + event.type = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = EVENT_KEYDOWN; + event.kbd.keycode = SDLK_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 = 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; +} + |