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/*
File: AUCarbonViewControl.h
Abstract: Part of CoreAudio Utility Classes
Version: 1.1
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
Inc. ("Apple") in consideration of your agreement to the following
terms, and your use, installation, modification or redistribution of
this Apple software constitutes acceptance of these terms. If you do
not agree with these terms, please do not use, install, modify or
redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and
subject to these terms, Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this original Apple software (the
"Apple Software"), to use, reproduce, modify and redistribute the Apple
Software, with or without modifications, in source and/or binary forms;
provided that if you redistribute the Apple Software in its entirety and
without modifications, you must retain this notice and the following
text and disclaimers in all such redistributions of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc. may
be used to endorse or promote products derived from the Apple Software
without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or
implied, are granted by Apple herein, including but not limited to any
patent rights that may be infringed by your derivative works or by other
works in which the Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2014 Apple Inc. All Rights Reserved.
*/
#ifndef __AUCarbonViewControl_h__
#define __AUCarbonViewControl_h__
#include <Carbon/Carbon.h>
#include <AudioUnit/AudioUnitCarbonView.h>
#include <AudioToolbox/AudioUnitUtilities.h>
#include "CarbonEventHandler.h"
#include "CAAUParameter.h"
class AUCarbonViewBase;
// ____________________________________________________________________________
// AUCarbonViewControl
// Wrapper for a control that is wired to an AudioUnit parameter.
/*! @class AUCarbonViewControl */
class AUCarbonViewControl : public CarbonEventHandler {
// note that the controls are never disposed; that's managed by the AUCarbonViewBase's
// parent pane which contains all of them ... if we later need to be able to delete
// individual controls on the fly, extra work needed
public:
enum ControlType {
kTypeContinuous, // e.g. slider
kTypeDiscrete, // e.g. pop-up menu
kTypeText
};
AUCarbonViewControl(AUCarbonViewBase *ownerView, AUParameterListenerRef listener, ControlType type, const CAAUParameter ¶m, ControlRef control);
~AUCarbonViewControl();
/*! @method Bind */
virtual void Bind(); // second-stage construction
/*! @method ControlToParameter */
virtual void ControlToParameter();
/*! @method ParameterToControl */
virtual void ParameterToControl(Float32 newValue);
/*! @method SetValueFract */
virtual void SetValueFract(double value);
/*! @method GetValueFract */
virtual double GetValueFract();
/*! @method SetTextValue */
virtual void SetTextValue(CFStringRef str);
/*! @method GetTextValue */
virtual CFStringRef GetTextValue();
/*! @method SetValue */
virtual void SetValue(long value);
/*! @method GetValue */
virtual long GetValue();
/*! @method GetOwnerView */
AUCarbonViewBase * GetOwnerView() {return mOwnerView;}
/*! @method Update */
void Update (bool inUIThread)
{
if (inUIThread)
ParameterToControl (mParam.GetValue());
else
AUParameterListenerNotify (mListener, this, &mParam);
}
// CarbonEventHandler overrides
/*! @method HandleEvent */
virtual bool HandleEvent(EventHandlerCallRef inHandlerRef, EventRef event);
/*! @method ControlRef */
operator ControlRef() { return mControl; }
/*! @method SizeControlToFit */
static Boolean SizeControlToFit(ControlRef inControl, SInt16 *outWidth = NULL, SInt16 *outHeight = NULL);
/*! @method SliderTrackProc */
static pascal void SliderTrackProc(ControlRef theControl, ControlPartCode partCode);
/*! @method NumericKeyFilterCallback */
static pascal ControlKeyFilterResult NumericKeyFilterCallback(ControlRef theControl, SInt16 *keyCode, SInt16 *charCode,
EventModifiers *modifiers);
protected:
/*! @method ParamInfo */
const AudioUnitParameterInfo &ParamInfo() { return mParam.ParamInfo(); }
/*! @var mOwnerView */
AUCarbonViewBase * mOwnerView;
/*! @var mListener */
AUParameterListenerRef mListener;
/*! @var mType */
ControlType mType;
/*! @var mParam */
CAAUParameter mParam;
/*! @var mControl */
ControlRef mControl;
/*! @method StdKeyFilterCallback */
static pascal ControlKeyFilterResult StdKeyFilterCallback(ControlRef theControl, SInt16 *keyCode, SInt16 *charCode,
EventModifiers *modifiers);
SInt16 mInControlInitialization;
static AUCarbonViewControl* mLastControl;
};
/*! @class AUPropertyControl */
class AUPropertyControl : public CarbonEventHandler {
public:
/*! @ctor AUPropertyControl */
AUPropertyControl (AUCarbonViewBase * inBase) : mControl(0), mView (inBase), mHeight(0) {}
/*! @method HandleEvent */
virtual bool HandleEvent(EventHandlerCallRef inHandlerRef, EventRef event);
/*! @method HandlePropertyChange */
virtual bool HandlePropertyChange (const AudioUnitProperty &inProp) = 0;
/*! @method AddInterest */
virtual void AddInterest (AUEventListenerRef inListener,
void * inObject) = 0;
/*! @method RemoveInterest */
virtual void RemoveInterest (AUEventListenerRef inListener,
void * inObject) = 0;
/*! @method GetHeight */
int GetHeight() { return mHeight;}
protected:
/*! @method HandleControlChange */
virtual void HandleControlChange () = 0;
/*! @method RegisterEvents */
void RegisterEvents ();
/*! @method EmbedControl */
void EmbedControl (ControlRef theControl);
/*! @method GetCarbonWindow */
WindowRef GetCarbonWindow();
/*! @var mControl */
ControlRef mControl;
/*! @var mView */
AUCarbonViewBase* mView;
/*! @var mHeight */
SInt16 mHeight;
};
/*! @class AUVPresets */
class AUVPresets : public AUPropertyControl {
public:
/*! @ctor HandleControlChange */
AUVPresets (AUCarbonViewBase * inBase,
CFArrayRef& inPresets,
Point inLocation,
int nameWidth,
int controlWidth,
ControlFontStyleRec & inFontStyle);
virtual ~AUVPresets () { CFRelease (mPresets); }
/*! @method HandlePropertyChange */
virtual bool HandlePropertyChange (const AudioUnitProperty &inProp);
/*! @method AddInterest */
virtual void AddInterest (AUEventListenerRef inListener,
void * inObject);
/*! @method RemoveInterest */
virtual void RemoveInterest (AUEventListenerRef inListener,
void * inObject);
protected:
/*! @method HandleControlChange */
virtual void HandleControlChange ();
/*! @var mPresets */
CFArrayRef mPresets;
/*! @var mView */
AUCarbonViewBase* mView;
AudioUnitPropertyID mPropertyID;
void HandlePropertyChange(AUPreset &preset);
};
#endif // __AUCarbonViewControl_h__
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