Add partially-finished SDL wrapper code to betawidfet.
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@5881 4a71c877-e1ca-e34f-864e-861f7616d084master
Freddie Witherden
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d5b341334d
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a06bb014df
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/*
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This file is part of Warzone 2100.
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Copyright (C) 2008 Freddie Witherden
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Copyright (C) 2008 Warzone Resurrection Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "event.h"
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#include "../../widget.h"
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#include "../../window.h"
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/**
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* Converts an SDLkey to an eventKeycode (as used by the widget system).
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*
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* @param key The SDL key to convert from.
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* @return The equivalent eventKeycode, or EVT_KEYCODE_UNKNOWN if there is no
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* equivalent.
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*/
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static eventKeycode SDLKeyToEventKeycode(SDLKey key)
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{
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switch (key)
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{
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case SDLK_BACKSPACE:
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return EVT_KEYCODE_BACKSPACE;
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case SDLK_TAB:
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return EVT_KEYCODE_TAB;
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case SDLK_RETURN:
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return EVT_KEYCODE_RETURN;
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case SDLK_ESCAPE:
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return EVT_KEYCODE_ESCAPE;
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case SDLK_KP_ENTER:
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return EVT_KEYCODE_ENTER;
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case SDLK_LEFT:
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return EVT_KEYCODE_LEFT;
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case SDLK_RIGHT:
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return EVT_KEYCODE_RIGHT;
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case SDLK_UP:
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return EVT_KEYCODE_UP;
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case SDLK_DOWN:
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return EVT_KEYCODE_DOWN;
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case SDLK_INSERT:
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return EVT_KEYCODE_INSERT;
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case SDLK_DELETE:
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return EVT_KEYCODE_DELETE;
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case SDLK_HOME:
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return EVT_KEYCODE_HOME;
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case SDLK_END:
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return EVT_KEYCODE_END;
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case SDLK_PAGEUP:
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return EVT_KEYCODE_PAGEUP;
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case SDLK_PAGEDOWN:
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return EVT_KEYCODE_PAGEDOWN;
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default:
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return EVT_KEYCODE_UNKNOWN;
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}
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}
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/**
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* Converts SDL mouse button ids to their corresponding mouseButton enumeration.
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*
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* @param buttonId The button which was pressed.
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* @return The corresponding mouseButton enum.
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*/
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static mouseButton SDLButtonToMouseButton(int buttonId)
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{
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switch (buttonId)
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{
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case 1:
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return BUTTON_LEFT;
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case 2:
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return BUTTON_RIGHT;
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case 4:
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return BUTTON_WHEEL_UP;
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case 5:
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return BUTTON_WHEEL_DOWN;
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default:
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return BUTTON_OTHER;
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}
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}
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void widgetHandleSDLEvent(const SDL_Event *sdlEvt)
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{
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// Last known location of the mouse
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static point previousMouseLoc = { -1, -1 };
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switch (sdlEvt->type)
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{
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case SDL_MOUSEMOTION:
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{
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eventMouse evtMouse;
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evtMouse.event.time = widgetGetTime();
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evtMouse.event.type = EVT_MOUSE_MOVE;
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// Location
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evtMouse.loc.x = sdlEvt->motion.x;
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evtMouse.loc.y = sdlEvt->motion.y;
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// Previous location
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evtMouse.previousLoc = previousMouseLoc;
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// Update the previous location
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previousMouseLoc = evtMouse.loc;
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windowHandleEventForWindowVector((event *) &evtMouse);
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break;
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}
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case SDL_MOUSEBUTTONDOWN:
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case SDL_MOUSEBUTTONUP:
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{
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eventMouseBtn evtMouseBtn;
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evtMouseBtn.event.time = widgetGetTime();
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evtMouseBtn.event.type = (sdlEvt->button.state == SDL_PRESSED) ?
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EVT_MOUSE_DOWN : EVT_MOUSE_UP;
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// Location
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evtMouseBtn.loc.x = sdlEvt->button.x;
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evtMouseBtn.loc.y = sdlEvt->button.y;
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// Update the previous location
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previousMouseLoc = evtMouseBtn.loc;
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// Button pressed/released
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evtMouseBtn.button = SDLButtonToMouseButton(sdlEvt->button.button);
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windowHandleEventForWindowVector((event *) &evtMouseBtn);
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break;
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}
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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{
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eventKey evtKey;
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evtKey.event.time = widgetGetTime();
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evtKey.event.type = (sdlEvt->key.type == SDL_KEYDOWN) ?
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EVT_KEY_DOWN : EVT_KEY_UP;
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// Key pressed/released
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evtKey.keycode = SDLKeyToEventKeycode(sdlEvt->key.keysym.sym);
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// Modifier keys
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if (sdlEvt->key.keysym.mod & KMOD_CTRL)
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{
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evtKey.ctrl = true;
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}
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if (sdlEvt->key.keysym.mod & KMOD_ALT)
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{
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evtKey.alt = true;
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}
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if (sdlEvt->key.keysym.mod & KMOD_SHIFT)
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{
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evtKey.shift = true;
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}
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// FIXME: Add support for text events!
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windowHandleEventForWindowVector((event *) &evtKey);
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break;
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}
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}
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}
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void widgetFireTimers()
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{
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// Create the generic timer event
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eventTimer evtTimer;
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evtTimer.event.time = widgetGetTime();
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evtTimer.event.type = EVT_TIMER;
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// Dispatch
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windowHandleEventForWindowVector((event *) &evtTimer);
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}
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@ -0,0 +1,31 @@
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/*
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This file is part of Warzone 2100.
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Copyright (C) 2008 Freddie Witherden
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Copyright (C) 2008 Warzone Resurrection Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef PLATFORM_SDL_EVENT_H_
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#define PLATFORM_SDL_EVENT_H_
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#include <SDL.h>
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void widgetHandleSDLEvent(const SDL_Event *sdlEvt);
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void widgetFireTimers(void);
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#endif /*PLATFORM_SDL_EVENT_H_*/
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@ -171,6 +171,20 @@ vector *windowGetWindowVector()
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return windowVector;
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}
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void windowHandleEventForWindowVector(const event *evt)
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{
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int i;
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// Make sure the vector is valid
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assert(windowVector != NULL);
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// Pass the event to each of the windows
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for (i = 0; i < vectorSize(windowVector); i++)
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{
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widgetHandleEvent(vectorAt(windowVector, i), evt);
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}
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}
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void windowSetScreenSize(int w, int h)
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{
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screenWidth = w;
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@ -96,6 +96,13 @@ void windowSetWindowVector(vector *v);
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*/
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vector *windowGetWindowVector(void);
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/**
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* Passes the event evt to each window in the current window vector.
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*
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* @param evt The event to handle.
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*/
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void windowHandleEventForWindowVector(const event *evt);
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/**
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* Sets the size of the screen to (w,h). It is important that the screen size
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* be set before any calls to windowRepositionFromScreen are made.
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