318 lines
9.5 KiB
C++
318 lines
9.5 KiB
C++
/****************************************************************************
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* NxWidgets/nxwm/include/cmediaplayer.hxx
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*
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* Copyright (C) 2013 Ken Pettit. All rights reserved.
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* Author: Ken Pettit <pettitkd@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CMEDIAPLAYER_HXX
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#define __INCLUDE_CMEDIAPLAYER_HXX
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <nuttx/nx/nxtk.h>
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#include <nuttx/nx/nxconsole.h>
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#include "cimage.hxx"
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#include "cstickyimage.hxx"
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#include "clabel.hxx"
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#include "cnxfont.hxx"
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#include "cglyphsliderhorizontal.hxx"
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#include "iapplication.hxx"
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#include "capplicationwindow.hxx"
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#include "ctaskbar.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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#define NXWM_MEDIAPLAYER_NROWS 6
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#define NXWM_MEDIAPLAYER_NCOLUMNS 6
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/****************************************************************************
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* Implementation Classes
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****************************************************************************/
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#if defined(__cplusplus)
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namespace NxWM
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{
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/**
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* This class implements the CMediaPlayer application.
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*/
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class CMediaPlayer : public IApplication,
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private IApplicationCallback,
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private NXWidgets::CWidgetEventHandler
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{
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private:
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/**
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* This enumeration identifies the state of the media player
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*/
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enum EMediaPlayerState
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{
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MPLAYER_STOPPED = 0, /**< No media file has been selected */
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MPLAYER_PLAYING, /**< Playing a media file */
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MPLAYER_PAUSED, /**< Playing a media file but paused */
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MPLAYER_FFORWARD, /**< Fast forwarding through a media file */
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MPLAYER_FREWIND, /**< Rewinding a media file */
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};
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/**
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* The structure defines a pending operation.
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*/
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struct SPendingOperation
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{
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int64_t value; /**< Accumulated value */
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uint8_t operation; /**< Identifies the operations */
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};
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/**
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* Media player state data.
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*/
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enum EMediaPlayerState m_state; /**< Media player current state */
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enum EMediaPlayerState m_prevState; /**< Media player previous state */
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/**
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* Cached constructor parameters.
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*/
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CTaskbar *m_taskbar; /**< Reference to the "parent" taskbar */
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CApplicationWindow *m_window; /**< Reference to the application window */
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/**
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* Widgets
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*/
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NXWidgets::CLabel *m_text; /**< Some text in the app for now */
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NXWidgets::CNxFont *m_font; /**< The font used in the media player */
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NXWidgets::CImage *m_play; /**< Play control */
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NXWidgets::CImage *m_pause; /**< Pause control */
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NXWidgets::CStickyImage *m_rewind; /**< Rewind control */
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NXWidgets::CStickyImage *m_fforward; /**< Fast forward control */
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NXWidgets::CGlyphSliderHorizontal *m_volume; /**< Volume control */
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/**
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* Calculator geometry. This stuff does not really have to be retained
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* in memory. If you are pinched for memory, get rid of these.
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*/
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struct nxgl_size_s m_windowSize; /**< The size of the media player window */
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struct nxgl_size_s m_textSize; /**< The size of the media player textbox */
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struct nxgl_point_s m_textPos; /**< The position of the media player textbox */
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/**
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* Select the geometry of the media player given the current window size.
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* Only called as part of construction.
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*/
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inline void setGeometry(void);
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/**
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* Create the Media Player conrols. Only start as part of the applicaiton
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* start method.
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*/
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inline bool createPlayer(void);
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/**
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* Called when the window minimize button is pressed.
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*/
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void minimize(void);
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/**
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* Called when the window minimize close is pressed.
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*/
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void close(void);
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/**
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* Transition to a new media player state.
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*
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* @param state The new state to enter.
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*/
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void setMediaPlayerState(enum EMediaPlayerState state);
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/**
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* Handle a widget action event. This includes a button pre/release
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* release events and volume slider change events.
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*
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* @param e The event data.
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*/
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void handleActionEvent(const NXWidgets::CWidgetEventArgs &e);
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public:
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/**
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* CMediaPlayer constructor
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*
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* @param window. The application window
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*
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* @param taskbar. A pointer to the parent task bar instance
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* @param window. The window to be used by this application.
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*/
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CMediaPlayer(CTaskbar *taskbar, CApplicationWindow *window);
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/**
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* CMediaPlayer destructor
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*/
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~CMediaPlayer(void);
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/**
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* Each implementation of IApplication must provide a method to recover
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* the contained CApplicationWindow instance.
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*/
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IApplicationWindow *getWindow(void) const;
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/**
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* Get the icon associated with the application
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*
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* @return An instance if IBitmap that may be used to rend the
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* application's icon. This is an new IBitmap instance that must
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* be deleted by the caller when it is no long needed.
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*/
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NXWidgets::IBitmap *getIcon(void);
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/**
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* Get the name string associated with the application
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*
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* @return A copy if CNxString that contains the name of the application.
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*/
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NXWidgets::CNxString getName(void);
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/**
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* Start the application (perhaps in the minimized state).
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*
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* @return True if the application was successfully started.
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*/
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bool run(void);
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/**
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* Stop the application.
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*/
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void stop(void);
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/**
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* Destroy the application and free all of its resources. This method
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* will initiate blocking of messages from the NX server. The server
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* will flush the window message queue and reply with the blocked
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* message. When the block message is received by CWindowMessenger,
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* it will send the destroy message to the start window task which
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* will, finally, safely delete the application.
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*/
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void destroy(void);
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/**
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* The application window is hidden (either it is minimized or it is
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* maximized, but not at the top of the hierarchy
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*/
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void hide(void);
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/**
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* Redraw the entire window. The application has been maximized or
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* otherwise moved to the top of the hierarchy. This method is call from
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* CTaskbar when the application window must be displayed
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*/
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void redraw(void);
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/**
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* Report of this is a "normal" window or a full screen window. The
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* primary purpose of this method is so that window manager will know
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* whether or not it show draw the task bar.
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*
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* @return True if this is a full screen window.
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*/
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bool isFullScreen(void) const;
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};
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class CMediaPlayerFactory : public IApplicationFactory
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{
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private:
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CTaskbar *m_taskbar; /**< The taskbar */
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public:
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/**
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* CMediaPlayerFactory Constructor
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*
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* @param taskbar. The taskbar instance used to terminate calibration
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*/
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CMediaPlayerFactory(CTaskbar *taskbar);
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/**
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* CMediaPlayerFactory Destructor
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*/
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inline ~CMediaPlayerFactory(void) { }
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/**
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* Create a new instance of an CMediaPlayer (as IApplication).
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*/
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IApplication *create(void);
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/**
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* Get the icon associated with the application
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*
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* @return An instance if IBitmap that may be used to rend the
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* application's icon. This is an new IBitmap instance that must
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* be deleted by the caller when it is no long needed.
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*/
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NXWidgets::IBitmap *getIcon(void);
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};
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}
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#endif // __cplusplus
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#endif // __INCLUDE_CMEDIAPLAYER_HXX
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