| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef SDEXT_PRESENTER_TIMER_HXX |
| #define SDEXT_PRESENTER_TIMER_HXX |
| |
| #include <com/sun/star/awt/XCallback.hpp> |
| #include <com/sun/star/awt/XRequestCallback.hpp> |
| #include <cppuhelper/basemutex.hxx> |
| #include <cppuhelper/compbase1.hxx> |
| #include <osl/mutex.hxx> |
| #include <osl/time.h> |
| #include <rtl/ref.hxx> |
| #include <sal/types.h> |
| #include <boost/enable_shared_from_this.hpp> |
| #include <boost/function.hpp> |
| #include <vector> |
| |
| namespace css = ::com::sun::star; |
| |
| namespace sdext { namespace presenter { |
| |
| class PresenterClockInternalTimer; |
| |
| /** The timer allows tasks to be scheduled for execution at a specified time |
| in the future. |
| */ |
| class PresenterTimer |
| { |
| public: |
| /** A task is called with the current time. |
| */ |
| typedef ::boost::function<void(const TimeValue&)> Task; |
| |
| static const sal_Int32 NotAValidTaskId = 0; |
| |
| static sal_Int32 ScheduleSingleTaskRelative ( |
| const Task& rTask, |
| const sal_Int64 nDelay); |
| |
| static sal_Int32 ScheduleSingleTaskAbsolute ( |
| const Task& rTask, |
| const TimeValue& rDueTime); |
| |
| /** Schedule a task to be executed repeatedly. The task is executed the |
| first time after nFirst nano-seconds (1000000000 corresponds to one |
| second). After that task is executed in intervalls that are |
| nIntervall ns long until CancelTask is called. |
| */ |
| static sal_Int32 ScheduleRepeatedTask ( |
| const Task& rTask, |
| const sal_Int64 nFirst, |
| const sal_Int64 nIntervall); |
| |
| static void CancelTask (const sal_Int32 nTaskId); |
| }; |
| |
| |
| |
| typedef cppu::WeakComponentImplHelper1< |
| css::awt::XCallback |
| > PresenterClockTimerInterfaceBase; |
| |
| /** A timer that calls its listeners, typically clocks, every second to |
| update their current time value. |
| */ |
| class PresenterClockTimer |
| : protected ::cppu::BaseMutex, |
| public PresenterClockTimerInterfaceBase |
| { |
| public: |
| class Listener { public: |
| virtual void TimeHasChanged (const oslDateTime& rCurrentTime) = 0; |
| }; |
| typedef ::boost::shared_ptr<Listener> SharedListener; |
| |
| static ::rtl::Reference<PresenterClockTimer> Instance ( |
| const css::uno::Reference<css::uno::XComponentContext>& rxContext); |
| |
| void AddListener (const SharedListener& rListener); |
| void RemoveListener (const SharedListener& rListener); |
| |
| static oslDateTime GetCurrentTime (void); |
| |
| /** Return the difference between the two different times in |
| nanoseconds. |
| */ |
| static sal_Int64 GetTimeDifference (const oslDateTime& rNow, const oslDateTime& rThen); |
| |
| // XCallback |
| |
| virtual void SAL_CALL notify (const css::uno::Any& rUserData) |
| throw (css::uno::RuntimeException); |
| |
| private: |
| static ::rtl::Reference<PresenterClockTimer> mpInstance; |
| |
| ::osl::Mutex maMutex; |
| typedef ::std::vector<SharedListener> ListenerContainer; |
| ListenerContainer maListeners; |
| oslDateTime maDateTime; |
| sal_Int32 mnTimerTaskId; |
| bool mbIsCallbackPending; |
| css::uno::Reference<css::awt::XRequestCallback> mxRequestCallback; |
| |
| PresenterClockTimer ( |
| const css::uno::Reference<css::uno::XComponentContext>& rxContext); |
| ~PresenterClockTimer (void); |
| |
| void CheckCurrentTime (const TimeValue& rCurrentTime); |
| }; |
| |
| |
| |
| |
| |
| } } // end of namespace ::sdext::presenter |
| |
| #endif |