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include/cinder/app/AppCocoaTouch.h

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00001 /*
00002  Copyright (c) 2010, The Barbarian Group
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are permitted provided that
00006  the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice, this list of conditions and
00009     the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
00011     the following disclaimer in the documentation and/or other materials provided with the distribution.
00012 
00013  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
00014  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00015  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00016  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00017  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00018  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00019  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00020  POSSIBILITY OF SUCH DAMAGE.
00021 */
00022 
00023 #pragma once
00024 
00025 #include "cinder/app/App.h"
00026 #include "cinder/cocoa/CinderCocoaTouch.h"
00027 #include "cinder/app/TouchEvent.h"
00028 #include "cinder/app/AccelEvent.h"
00029 
00030 
00031 namespace cinder { namespace app {
00032 
00033 struct AppCocoaTouchState;
00034 
00035 class AppCocoaTouch : public App {
00036   public:
00037     class Settings : public App::Settings {
00038       public:
00039         Settings()
00040             : App::Settings(), mEnableMultiTouch( true ) {}
00041 
00043         void        enableMultiTouch( bool enable = true ) { mEnableMultiTouch = enable; }
00045         bool        isMultiTouchEnabled() const { return mEnableMultiTouch; }
00046         
00047       private:
00048         bool        mEnableMultiTouch;
00049     };
00050 
00051     AppCocoaTouch();
00052     virtual ~AppCocoaTouch() {}
00053 
00054     virtual void        prepareSettings( Settings *settings ) {}
00056     virtual void        didBecomeActive() {}
00057     virtual void        willResignActive() {}
00058 
00060     virtual void        touchesBegan( TouchEvent event ) {}
00062     virtual void        touchesMoved( TouchEvent event ) {}
00064     virtual void        touchesEnded( TouchEvent event ) {}
00066     const std::vector<TouchEvent::Touch>&   getActiveTouches() const { return mActiveTouches; } 
00068     virtual void        accelerated( AccelEvent event ) {}
00069 
00071     CallbackId      registerTouchesBegan( std::function<bool (TouchEvent)> callback ) { return mCallbacksTouchesBegan.registerCb( callback ); }
00073     template<typename T>
00074     CallbackId      registerTouchesBegan( T *obj, bool (T::*callback)(TouchEvent) ) { return mCallbacksTouchesBegan.registerCb( std::bind1st( std::mem_fun( callback ), obj ) ); }
00076     void            unregisterTouchesBegan( CallbackId id ) { mCallbacksTouchesBegan.unregisterCb( id ); }
00077 
00079     CallbackId      registerTouchesMoved( std::function<bool (TouchEvent)> callback ) { return mCallbacksTouchesMoved.registerCb( callback ); }
00081     template<typename T>
00082     CallbackId      registerTouchesMoved( T *obj, bool (T::*callback)(TouchEvent) ) { return mCallbacksTouchesMoved.registerCb( std::bind1st( std::mem_fun( callback ), obj ) ); }
00084     void            unregisterTouchesMoved( CallbackId id ) { mCallbacksTouchesMoved.unregisterCb( id ); }
00085 
00087     CallbackId      registerTouchesEnded( std::function<bool (TouchEvent)> callback ) { return mCallbacksTouchesEnded.registerCb( callback ); }
00089     template<typename T>
00090     CallbackId      registerTouchesEnded( T *obj, bool (T::*callback)(TouchEvent) ) { return mCallbacksTouchesEnded.registerCb( std::bind1st( std::mem_fun( callback ), obj ) ); }
00092     void            unregisterTouchesEnded( CallbackId id ) { mCallbacksTouchesEnded.unregisterCb( id ); }
00093 
00095     CallbackId      registerAccelerated( std::function<bool (AccelEvent)> callback ) { return mCallbacksAccelerated.registerCb( callback ); }
00097     template<typename T>
00098     CallbackId      registerAccelerated( T *obj, bool (T::*callback)(AccelEvent) ) { return mCallbacksAccelerated.registerCb( std::bind1st( std::mem_fun( callback ), obj ) ); }
00100     void            unregisterAccelerated( CallbackId id ) { mCallbacksAccelerated.unregisterCb( id ); }
00101 
00102     
00104     virtual int     getWindowWidth() const;
00106     virtual int     getWindowHeight() const;
00108     virtual float   getContentScaleFactor() const;
00110     void            setWindowWidth( int windowWidth ) {}
00112     void            setWindowHeight( int windowHeight ) {}
00114     void            setWindowSize( int windowWidth, int windowHeight ) {}
00115 
00117     void enableAccelerometer( float updateFrequency = 30.0f, float filterFactor = 0.1f );
00119     void disableAccelerometer();
00120     
00122     virtual float       getFrameRate() const;
00124     virtual void        setFrameRate( float aFrameRate );
00126     virtual bool        isFullScreen() const;
00128     virtual void        setFullScreen( bool aFullScreen );
00129 
00131     virtual double      getElapsedSeconds() const;
00132 
00134     virtual fs::path    getAppPath();
00135 
00137     virtual void    quit();
00138 
00140     static AppCocoaTouch*   get() { return sInstance; }
00142     virtual const Settings& getSettings() const { return mSettings; }
00143 
00144 
00146     // These are called by application instantation macros and are only used in the launch process
00147     static void     prepareLaunch() { App::prepareLaunch(); }
00148     static void     executeLaunch( AppCocoaTouch *app, class Renderer *renderer, const char *title, int argc, char * const argv[] ) { sInstance = app; App::executeLaunch( app, renderer, title, argc, argv ); }
00149     static void     cleanupLaunch() { App::cleanupLaunch(); }
00150     
00151     virtual void    launch( const char *title, int argc, char * const argv[] );
00153 
00154     // DO NOT CALL - should be private but aren't for esoteric reasons
00156     // Internal handlers - these are called into by AppImpl's. If you are calling one of these, you have likely strayed far off the path.
00157     void        privatePrepareSettings__();
00158     void        privateTouchesBegan__( const TouchEvent &event );
00159     void        privateTouchesMoved__( const TouchEvent &event );
00160     void        privateTouchesEnded__( const TouchEvent &event );
00161     void        privateSetActiveTouches__( const std::vector<TouchEvent::Touch> &touches ) { mActiveTouches = touches; }
00162     void        privateAccelerated__( const Vec3f &direction );
00164 
00165     // The state is contained in a struct in order to avoid this .h needing to be compiled as Objective-C++
00166     std::shared_ptr<AppCocoaTouchState>     mState;
00167 
00168   private:
00169     friend void     setupCocoaTouchWindow( AppCocoaTouch *app );
00170     
00171     
00172     static AppCocoaTouch    *sInstance; 
00173     Settings                mSettings;
00174     
00175     std::vector<TouchEvent::Touch>  mActiveTouches;
00176 
00177     CallbackMgr<bool (TouchEvent)>      mCallbacksTouchesBegan, mCallbacksTouchesMoved, mCallbacksTouchesEnded;
00178     CallbackMgr<bool (AccelEvent)>      mCallbacksAccelerated;
00179 
00180     float                   mAccelFilterFactor;
00181     Vec3f                   mLastAccel, mLastRawAccel;
00182 };
00183 
00184 } } // namespace cinder::app
00185 
00186 #define CINDER_APP_COCOA_TOUCH( APP, RENDERER )                             \
00187 int main( int argc, char *argv[] ) {                                        \
00188     cinder::app::AppCocoaTouch::prepareLaunch();                            \
00189     cinder::app::AppCocoaTouch *app = new APP;                              \
00190     cinder::app::Renderer *ren = new RENDERER;                              \
00191     cinder::app::AppCocoaTouch::executeLaunch( app, ren, #APP, argc, argv );\
00192     cinder::app::AppCocoaTouch::cleanupLaunch();                            \
00193     return 0;                                                               \
00194 }