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|
/*
File: AUCarbonViewControl.cpp
Abstract: AUCarbonViewControl.h
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.
*/
#include "AUCarbonViewControl.h"
#include "AUCarbonViewBase.h"
#include "AUViewLocalizedStringKeys.h"
AUCarbonViewControl::AUCarbonViewControl(AUCarbonViewBase *ownerView, AUParameterListenerRef listener, ControlType type, const CAAUParameter ¶m, ControlRef control) :
mOwnerView(ownerView),
mListener(listener),
mType(type),
mParam(param),
mControl(control),
mInControlInitialization(0)
{
#if !__LP64__
SetControlReference(control, SRefCon(this));
#endif
}
AUCarbonViewControl::~AUCarbonViewControl()
{
AUListenerRemoveParameter(mListener, this, &mParam);
}
AUCarbonViewControl* AUCarbonViewControl::mLastControl = NULL;
void AUCarbonViewControl::Bind()
{
#if !__LP64__
mInControlInitialization = 1; // true
AUListenerAddParameter(mListener, this, &mParam);
// will cause an almost-immediate callback
EventTypeSpec events[] = {
{ kEventClassControl, kEventControlValueFieldChanged } // N.B. OS X only
};
WantEventTypes(GetControlEventTarget(mControl), GetEventTypeCount(events), events);
if (mType == kTypeContinuous || mType == kTypeText || mType == kTypeDiscrete) {
EventTypeSpec events[] = {
{ kEventClassControl, kEventControlHit },
{ kEventClassControl, kEventControlClick },
{ kEventClassControl, kEventControlTrack }
};
WantEventTypes(GetControlEventTarget(mControl), GetEventTypeCount(events), events);
}
if (mType == kTypeText) {
EventTypeSpec events[] = {
{ kEventClassControl, kEventControlSetFocusPart }
};
WantEventTypes(GetControlEventTarget(mControl), GetEventTypeCount(events), events);
ControlKeyFilterUPP proc = mParam.ValuesHaveStrings() ? StdKeyFilterCallback : NumericKeyFilterCallback;
// this will fail for a static text field
SetControlData(mControl, 0, kControlEditTextKeyFilterTag, sizeof(proc), &proc);
}
Update(true);
mInControlInitialization = 0; // false
#endif
}
void AUCarbonViewControl::ParameterToControl(Float32 paramValue)
{
#if !__LP64__
++mInControlInitialization;
switch (mType) {
case kTypeContinuous:
SetValueFract(AUParameterValueToLinear(paramValue, &mParam));
break;
case kTypeDiscrete:
{
long value = long(paramValue);
// special case [1] -- menu parameters
if (mParam.HasNamedParams()) {
// if we're dealing with menus they behave differently!
// becaue setting min and max doesn't work correctly for the control value
// first menu item always reports a control value of 1
ControlKind ctrlKind;
if (GetControlKind(mControl, &ctrlKind) == noErr) {
if ((ctrlKind.kind == kControlKindPopupArrow)
|| (ctrlKind.kind == kControlKindPopupButton))
{
value = value - long(mParam.ParamInfo().minValue) + 1;
}
}
}
// special case [2] -- Write-only boolean parameters
AudioUnitParameterInfo AUPI = mParam.ParamInfo();
bool isWriteOnlyBoolParameter = ( (AUPI.unit == kAudioUnitParameterUnit_Boolean) &&
(AUPI.flags & kAudioUnitParameterFlag_IsWritable) &&
!(AUPI.flags & kAudioUnitParameterFlag_IsReadable) );
if (!isWriteOnlyBoolParameter) {
SetValue (value);
}
}
break;
case kTypeText:
{
CFStringRef cfstr = mParam.GetStringFromValueCopy(¶mValue);
if ( !(mParam.ParamInfo().flags & kAudioUnitParameterFlag_IsWritable) //READ ONLY PARAMS
&& (mParam.ParamInfo().flags & kAudioUnitParameterFlag_IsReadable))
{
if (mParam.GetParamTag()) {
CFMutableStringRef str = CFStringCreateMutableCopy(NULL, 256, cfstr);
CFRelease (cfstr);
CFStringAppend (str, CFSTR(" "));
CFStringAppend (str, mParam.GetParamTag());
cfstr = str;
}
}
SetTextValue(cfstr);
CFRelease (cfstr);
}
break;
}
--mInControlInitialization;
#endif
}
void AUCarbonViewControl::ControlToParameter()
{
#if !__LP64__
if (mInControlInitialization)
return;
switch (mType) {
case kTypeContinuous:
{
double controlValue = GetValueFract();
Float32 paramValue = AUParameterValueFromLinear(controlValue, &mParam);
mParam.SetValue(mListener, this, paramValue);
}
break;
case kTypeDiscrete:
{
long value = GetValue();
// special case [1] -- Menus
if (mParam.HasNamedParams()) {
// if we're dealing with menus they behave differently!
// becaue setting min and max doesn't work correctly for the control value
// first menu item always reports a control value of 1
ControlKind ctrlKind;
if (GetControlKind(mControl, &ctrlKind) == noErr) {
if ((ctrlKind.kind == kControlKindPopupArrow)
|| (ctrlKind.kind == kControlKindPopupButton))
{
value = value + long(mParam.ParamInfo().minValue) - 1;
}
}
}
// special case [2] -- Write-only boolean parameters
AudioUnitParameterInfo AUPI = mParam.ParamInfo();
bool isWriteOnlyBoolParameter = ( (AUPI.unit == kAudioUnitParameterUnit_Boolean) &&
(AUPI.flags & kAudioUnitParameterFlag_IsWritable) &&
!(AUPI.flags & kAudioUnitParameterFlag_IsReadable) );
if (isWriteOnlyBoolParameter) {
value = 1;
}
mParam.SetValue (mListener, this, value);
}
break;
case kTypeText:
{
Float32 val = mParam.GetValueFromString (GetTextValue());
mParam.SetValue(mListener, this, (mParam.IsIndexedParam() ? (int)val : val));
if (mParam.ValuesHaveStrings())
ParameterToControl(val); //make sure we display the correct text (from the AU)
}
break;
}
#endif
}
void AUCarbonViewControl::SetValueFract(double value)
{
#if !__LP64__
SInt32 minimum = GetControl32BitMinimum(mControl);
SInt32 maximum = GetControl32BitMaximum(mControl);
SInt32 cval = SInt32(value * (maximum - minimum) + minimum + 0.5);
SetControl32BitValue(mControl, cval);
// printf("set: value=%lf, min=%ld, max=%ld, ctl value=%ld\n", value, minimum, maximum, cval);
#endif
}
double AUCarbonViewControl::GetValueFract()
{
#if !__LP64__
SInt32 minimum = GetControl32BitMinimum(mControl);
SInt32 maximum = GetControl32BitMaximum(mControl);
SInt32 cval = GetControl32BitValue(mControl);
double result = double(cval - minimum) / double(maximum - minimum);
// printf("get: min=%ld, max=%ld, value=%ld, result=%f\n", minimum, maximum, cval, result);
return result;
#else
return 0;
#endif
}
void AUCarbonViewControl::SetTextValue(CFStringRef cfstr)
{
#if !__LP64__
verify_noerr(SetControlData(mControl, 0, kControlEditTextCFStringTag, sizeof(CFStringRef), &cfstr));
#endif
}
CFStringRef AUCarbonViewControl::GetTextValue()
{
#if !__LP64__
CFStringRef cfstr;
verify_noerr(GetControlData(mControl, 0, kControlEditTextCFStringTag, sizeof(CFStringRef), &cfstr, NULL));
return cfstr;
#else
return CFSTR("");
#endif
}
void AUCarbonViewControl::SetValue(long value)
{
#if !__LP64__
SetControl32BitValue(mControl, value);
#endif
}
long AUCarbonViewControl::GetValue()
{
#if !__LP64__
return GetControl32BitValue(mControl);
#else
return 0;
#endif
}
/* Notes on event handling
Button (Click and release on button)
kEventControlClick received
kEventControlTrack received
kEventControlValueFieldChanged received
kEventControlHit received
Button (Click and release outside of button bounds)
kEventControlClick received
kEventControlTrack received
Slider (Click, drag, and release)
kEventControlClick received
kEventControlTrack received
kEventControlValueFieldChanged received
kEventControlValueFieldChanged received
kEventControlHit received
Slider (Click, release without changing value)
kEventControlClick received
kEventControlTrack received
*/
bool AUCarbonViewControl::HandleEvent(EventHandlerCallRef inHandlerRef, EventRef event)
{
UInt32 eclass = GetEventClass(event);
UInt32 ekind = GetEventKind(event);
ControlRef control;
bool handled = true;
switch (eclass) {
case kEventClassControl:
{
AudioUnitParameterInfo AUPI = mParam.ParamInfo();
bool isWriteOnlyBoolParameter = ( (AUPI.unit == kAudioUnitParameterUnit_Boolean) &&
(AUPI.flags & kAudioUnitParameterFlag_IsWritable) &&
!(AUPI.flags & kAudioUnitParameterFlag_IsReadable) );
switch (ekind) {
case kEventControlSetFocusPart: // tab
handled = !handled; // fall through to next case
mLastControl = this;
case kEventControlValueFieldChanged:
GetEventParameter(event, kEventParamDirectObject, typeControlRef, NULL, sizeof(ControlRef), NULL, &control);
verify(control == mControl);
ControlToParameter();
return handled;
case kEventControlClick:
if (isWriteOnlyBoolParameter) {
GetEventParameter(event, kEventParamDirectObject, typeControlRef, NULL, sizeof(ControlRef), NULL, &control);
verify(control == mControl);
ControlToParameter();
} else if (mLastControl != this) {
if (mLastControl != NULL) {
mLastControl->Update(false);
}
mLastControl = this;
}
mOwnerView->TellListener(mParam, kAudioUnitCarbonViewEvent_MouseDownInControl, NULL);
break; // don't return true, continue normal processing
case kEventControlHit:
if (mLastControl != this) {
if (mLastControl != NULL)
mLastControl->Update(false);
mLastControl = this;
}
mOwnerView->TellListener(mParam, kAudioUnitCarbonViewEvent_MouseUpInControl, NULL);
break; // don't return true, continue normal processing
case kEventControlTrack:
if (mLastControl != this) {
if (mLastControl != NULL)
mLastControl->Update(false);
mLastControl = this;
}
CallNextEventHandler(inHandlerRef, event);
ControlToParameter(); // new code
mOwnerView->TellListener(mParam, kAudioUnitCarbonViewEvent_MouseUpInControl, NULL);
// old code:
// break; // don't return true, continue normal processing
return handled; // don't return true, continue normal processing
}
}
}
return !handled;
}
pascal void AUCarbonViewControl::SliderTrackProc(ControlRef theControl, ControlPartCode partCode)
{
// this doesn't need to actually do anything
// AUCarbonViewControl *This = (AUCarbonViewControl *)GetControlReference(theControl);
}
pascal ControlKeyFilterResult AUCarbonViewControl::StdKeyFilterCallback(ControlRef theControl,
SInt16 *keyCode, SInt16 *charCode,
EventModifiers *modifiers)
{
#if !__LP64__
SInt16 c = *charCode;
if (c >= ' ' || c == '\b' || c == 0x7F || (c >= 0x1c && c <= 0x1f) || c == '\t')
return kControlKeyFilterPassKey;
if (c == '\r' || c == 3) { // return or Enter
AUCarbonViewControl *This = (AUCarbonViewControl *)GetControlReference(theControl);
ControlEditTextSelectionRec sel = { 0, 32767 };
SetControlData(This->mControl, 0, kControlEditTextSelectionTag, sizeof(sel), &sel);
This->ControlToParameter();
}
#endif
return kControlKeyFilterBlockKey;
}
pascal ControlKeyFilterResult AUCarbonViewControl::NumericKeyFilterCallback(ControlRef theControl,
SInt16 *keyCode, SInt16 *charCode,
EventModifiers *modifiers)
{
#if !__LP64__
SInt16 c = *charCode;
if (isdigit(c) || c == '+' || c == '-' || c == '.' || c == '\b' || c == 0x7F || (c >= 0x1c && c <= 0x1f)
|| c == '\t')
return kControlKeyFilterPassKey;
if (c == '\r' || c == 3) { // return or Enter
AUCarbonViewControl *This = (AUCarbonViewControl *)GetControlReference(theControl);
ControlEditTextSelectionRec sel = { 0, 32767 };
SetControlData(This->mControl, 0, kControlEditTextSelectionTag, sizeof(sel), &sel);
This->ControlToParameter();
}
#endif
return kControlKeyFilterBlockKey;
}
Boolean AUCarbonViewControl::SizeControlToFit(ControlRef inControl, SInt16 *outWidth, SInt16 *outHeight)
{
#if !__LP64__
if (inControl == 0) return false;
Boolean bValue = false;
// this only works on text controls -- returns an error for other controls, but doesn't do anything,
// so the error is irrelevant
SetControlData(inControl, kControlEntireControl, 'stim' /* kControlStaticTextIsMultilineTag */, sizeof(Boolean), &bValue);
SInt16 baseLineOffset;
Rect bestRect;
OSErr err = GetBestControlRect(inControl, &bestRect, &baseLineOffset);
if (err != noErr) return false;
int width = (bestRect.right - bestRect.left) + 1;
int height = (bestRect.bottom - bestRect.top) + 1;
Rect boundsRect;
GetControlBounds (inControl, &boundsRect);
Rect newRect;
newRect.top = boundsRect.top;
newRect.bottom = newRect.top + height;
newRect.left = boundsRect.left;
newRect.right = newRect.left + width;
SetControlBounds (inControl, &newRect);
if (outWidth)
*outWidth = width;
if (outHeight)
*outHeight = height;
#endif
return true;
}
#pragma mark ___AUPropertyControl
bool AUPropertyControl::HandleEvent(EventHandlerCallRef inHandlerRef, EventRef event)
{
UInt32 eclass = GetEventClass(event);
UInt32 ekind = GetEventKind(event);
switch (eclass) {
case kEventClassControl:
switch (ekind) {
case kEventControlValueFieldChanged:
HandleControlChange();
return true; // handled
}
}
return false;
}
void AUPropertyControl::RegisterEvents ()
{
#if !__LP64__
EventTypeSpec events[] = {
{ kEventClassControl, kEventControlValueFieldChanged } // N.B. OS X only
};
WantEventTypes(GetControlEventTarget(mControl), GetEventTypeCount(events), events);
#endif
}
void AUPropertyControl::EmbedControl (ControlRef theControl)
{
mView->EmbedControl (theControl);
}
WindowRef AUPropertyControl::GetCarbonWindow()
{
return mView->GetCarbonWindow();
}
#pragma mark ___AUVPreset
#if !__LP64__
static CFStringRef kStringFactoryPreset = kAUViewLocalizedStringKey_FactoryPreset;
static bool sAUVPresetLocalized = false;
#endif
AUVPresets::AUVPresets (AUCarbonViewBase* inParentView,
CFArrayRef& inPresets,
Point inLocation,
int nameWidth,
int controlWidth,
ControlFontStyleRec & inFontStyle)
: AUPropertyControl (inParentView),
mPresets (inPresets),
mView (inParentView)
{
#if !__LP64__
Rect r;
// ok we now have an array of factory presets
// get their strings and display them
r.top = inLocation.v; r.bottom = r.top;
r.left = inLocation.h; r.right = r.left;
// localize as necessary
if (!sAUVPresetLocalized) {
CFBundleRef mainBundle = CFBundleGetBundleWithIdentifier(kLocalizedStringBundle_AUView);
if (mainBundle) {
kStringFactoryPreset = CFCopyLocalizedStringFromTableInBundle(
kAUViewLocalizedStringKey_FactoryPreset, kLocalizedStringTable_AUView,
mainBundle, CFSTR("FactoryPreset title string"));
sAUVPresetLocalized = true;
}
}
// create localized title string
CFMutableStringRef factoryPresetsTitle = CFStringCreateMutable(NULL, 0);
CFStringAppend(factoryPresetsTitle, kStringFactoryPreset);
CFStringAppend(factoryPresetsTitle, kAUViewUnlocalizedString_TitleSeparator);
ControlRef theControl;
verify_noerr(CreateStaticTextControl(mView->GetCarbonWindow(), &r, factoryPresetsTitle, &inFontStyle, &theControl));
SInt16 width = 0;
AUCarbonViewControl::SizeControlToFit(theControl, &width, &mHeight);
CFRelease(factoryPresetsTitle);
EmbedControl(theControl);
r.top -= 2;
r.left += width + 10;
r.right = r.left;
r.bottom = r.top;
verify_noerr(CreatePopupButtonControl ( mView->GetCarbonWindow(), &r, NULL,
-12345, // DON'T GET MENU FROM RESOURCE mMenuID,!!!
FALSE, // variableWidth,
0, // titleWidth,
0, // titleJustification,
0, // titleStyle,
&mControl));
MenuRef menuRef;
verify_noerr(CreateNewMenu(1, 0, &menuRef));
int numPresets = CFArrayGetCount(mPresets);
for (int i = 0; i < numPresets; ++i)
{
AUPreset* preset = (AUPreset*) CFArrayGetValueAtIndex (mPresets, i);
verify_noerr(AppendMenuItemTextWithCFString (menuRef, preset->presetName, 0, 0, 0));
}
verify_noerr(SetControlData(mControl, 0, kControlPopupButtonMenuRefTag, sizeof(menuRef), &menuRef));
verify_noerr (SetControlFontStyle (mControl, &inFontStyle));
SetControl32BitMaximum (mControl, numPresets);
// size popup
SInt16 height = 0;
AUCarbonViewControl::SizeControlToFit(mControl, &width, &height);
if (height > mHeight) mHeight = height;
if (mHeight < 0) mHeight = 0;
// find which menu item is the Default preset
UInt32 propertySize = sizeof(AUPreset);
AUPreset defaultPreset;
OSStatus result = AudioUnitGetProperty (mView->GetEditAudioUnit(),
kAudioUnitProperty_PresentPreset,
kAudioUnitScope_Global,
0,
&defaultPreset,
&propertySize);
mPropertyID = kAudioUnitProperty_PresentPreset;
#endif
#ifndef __LP64__
if (result != noErr) { // if the PresentPreset property is not implemented, fall back to the CurrentPreset property
OSStatus result = AudioUnitGetProperty (mView->GetEditAudioUnit(),
kAudioUnitProperty_CurrentPreset,
kAudioUnitScope_Global,
0,
&defaultPreset,
&propertySize);
mPropertyID = kAudioUnitProperty_CurrentPreset;
if (result == noErr)
CFRetain (defaultPreset.presetName);
}
#endif
#if !__LP64__
EmbedControl (mControl);
HandlePropertyChange(defaultPreset);
RegisterEvents();
#endif
}
void AUVPresets::AddInterest (AUEventListenerRef inListener,
void * inObject)
{
AudioUnitEvent e;
e.mEventType = kAudioUnitEvent_PropertyChange;
e.mArgument.mProperty.mAudioUnit = mView->GetEditAudioUnit();
e.mArgument.mProperty.mPropertyID = mPropertyID;
e.mArgument.mProperty.mScope = kAudioUnitScope_Global;
e.mArgument.mProperty.mElement = 0;
AUEventListenerAddEventType(inListener, inObject, &e);
}
void AUVPresets::RemoveInterest (AUEventListenerRef inListener,
void * inObject)
{
AudioUnitEvent e;
e.mEventType = kAudioUnitEvent_PropertyChange;
e.mArgument.mProperty.mAudioUnit = mView->GetEditAudioUnit();
e.mArgument.mProperty.mPropertyID = mPropertyID;
e.mArgument.mProperty.mScope = kAudioUnitScope_Global;
e.mArgument.mProperty.mElement = 0;
AUEventListenerRemoveEventType(inListener, inObject, &e);
}
void AUVPresets::HandleControlChange ()
{
#if !__LP64__
SInt32 i = GetControl32BitValue(mControl);
if (i > 0)
{
AUPreset* preset = (AUPreset*) CFArrayGetValueAtIndex (mPresets, i-1);
verify_noerr(AudioUnitSetProperty (mView->GetEditAudioUnit(),
mPropertyID, // either currentPreset or PresentPreset depending on which is supported
kAudioUnitScope_Global,
0,
preset,
sizeof(AUPreset)));
// when we change a preset we can't expect the AU to update its state
// as it isn't meant to know that its being viewed!
// so we broadcast a notification to all listeners that all parameters on this AU have changed
AudioUnitParameter changedUnit;
changedUnit.mAudioUnit = mView->GetEditAudioUnit();
changedUnit.mParameterID = kAUParameterListener_AnyParameter;
verify_noerr (AUParameterListenerNotify (NULL, NULL, &changedUnit) );
}
#endif
}
void AUVPresets::HandlePropertyChange(AUPreset &preset)
{
#if !__LP64__
// check to see if the preset is in our menu
int numPresets = CFArrayGetCount(mPresets);
if (preset.presetNumber < 0) {
SetControl32BitValue (mControl, 0); //controls are one-based
} else {
for (SInt32 i = 0; i < numPresets; ++i) {
AUPreset* currPreset = (AUPreset*) CFArrayGetValueAtIndex (mPresets, i);
if (preset.presetNumber == currPreset->presetNumber) {
SetControl32BitValue (mControl, ++i); //controls are one-based
break;
}
}
}
if (preset.presetName)
CFRelease (preset.presetName);
#endif
}
bool AUVPresets::HandlePropertyChange (const AudioUnitProperty &inProp)
{
if (inProp.mPropertyID == mPropertyID)
{
UInt32 theSize = sizeof(AUPreset);
AUPreset currentPreset;
OSStatus result = AudioUnitGetProperty(inProp.mAudioUnit,
inProp.mPropertyID,
inProp.mScope,
inProp.mElement, ¤tPreset, &theSize);
if (result == noErr) {
#ifndef __LP64__
if (inProp.mPropertyID == kAudioUnitProperty_CurrentPreset && currentPreset.presetName)
CFRetain (currentPreset.presetName);
#endif
HandlePropertyChange(currentPreset);
return true;
}
}
return false;
}
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