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#include "AUCarbonViewBase.h"

#include "AUControlGroup.h"

#include <map>

#include <vector>

#include "AUValidSamplesShared.h"

static const UInt32  kNumDisplayRows = 18;

class AUValidSamplesView : public AUCarbonViewBase {

public:

    AUValidSamplesView(AudioUnitCarbonView auv);

    virtual ~AUValidSamplesView();

    virtual OSStatus        CreateUI (Float32   inXOffset, Float32  inYOffset);

    virtual void            RebuildUI();

protected:

    virtual OSStatus        CreateUIForParameters (Float32 inXOffset, Float32 inYOffset, Rect *outSize);

    OSStatus                CreateSpecificUI (Float32 inXOffset, Float32 inYOffset, Rect *outSize);

    void                    DrawParameter (CAAUParameter &auvp, const int x, int &y, ControlFontStyleRec &fontStyle, Rect *outSize);

    void                    UpdateDisplay();

private:

    AUEventListenerRef      mPropertyChangeListener;

    ControlRef              GetCarbonPane() {   return mCarbonPane; }    

    void                    Cleanup();

    static void             AUPropertyChangedListener(   void *                     inCallbackRefCon,

                                                        void *                      inObject,

                                                        const AudioUnitEvent *      inEvent,

                                                        UInt64                      inEventHostTime,

                                                        Float32                     inParameterValue);

    ControlRef  mSampleDisplay[kNumDisplayRows], mChannelDisplay[kNumDisplayRows], mValueDisplay[kNumDisplayRows];

    UInt32      mLastDisplayIndex;

    VSInfoList* mPropValue;

    UInt32      mListByteSize;

    ControlRef  mMarker;

};

static const int kHeadingBodyDist = 24;

static const int kParamNameWidth = 140;

static const int kSliderWidth = 240;

static const int kEditTextWidth = 40;

static const int kParamTagWidth = 30;

static const int kMinMaxWidth = 40;

static const int kPopupAdjustment = -13;

static const int kReadOnlyMeterWidth = 286;

static const int kClumpSeparator = 8;

static const int kRowHeight = 20;

static const int kTextHeight = 14;

static const int kInfoRowHeight = 16;

static const CFStringRef kParametersLabelString = CFSTR("Parameters");

COMPONENT_ENTRY(AUValidSamplesView)

AUValidSamplesView::AUValidSamplesView(AudioUnitCarbonView auv) 

        : AUCarbonViewBase(auv), 

          mPropertyChangeListener (0),

          mPropValue(0)

{

}

AUValidSamplesView::~AUValidSamplesView()

{

    Cleanup();

    if (mPropertyChangeListener)

        AUListenerDispose(mPropertyChangeListener);

    free(mPropValue);

}

static CFStringRef resetStr = CFSTR("-");

void        AUValidSamplesView::UpdateDisplay()

{

    UInt32 size = mListByteSize;

    OSStatus result = AudioUnitGetProperty (GetEditAudioUnit(), 

                                kAUValidSamples_InvalidSamplesPropertyID, 

                                kAudioUnitScope_Global, 

                                0, 

                                mPropValue, 

                                &size);

    if (result)

        return;

    unsigned int numRetrieved = mPropValue->numEntries;

    if (!numRetrieved)

        return;

    unsigned int start = 0;

    if (numRetrieved >= kNumDisplayRows)

        start = numRetrieved - kNumDisplayRows;

    char cstr[64];

    for (unsigned int i = start; i < numRetrieved; ++i) 

    {

        VSInfo &item = mPropValue->data[i];

        sprintf (cstr, "%ld", item.sample); 

        CFStringRef str = CFStringCreateWithCString (0, cstr, kCFStringEncodingASCII);

        SetControlData (mSampleDisplay[mLastDisplayIndex], 0, kControlStaticTextCFStringTag, sizeof(CFStringRef), &str);

        CFRelease (str);

        sprintf (cstr, "%ld", item.channel);    

        str = CFStringCreateWithCString (0, cstr, kCFStringEncodingASCII);

        SetControlData (mChannelDisplay[mLastDisplayIndex], 0, kControlStaticTextCFStringTag, sizeof(CFStringRef), &str);

        CFRelease (str);

        float absx = fabs(item.value);

                // a bad number!

        if (absx < 1e-15)

            strcpy (cstr, "DENORMAL");

        else

            sprintf (cstr, "%.6f", item.value);

        str = CFStringCreateWithCString (0, cstr, kCFStringEncodingASCII);

        SetControlData (mValueDisplay[mLastDisplayIndex], 0, kControlStaticTextCFStringTag, sizeof(CFStringRef), &str);

        CFRelease (str);

        mLastDisplayIndex = ++mLastDisplayIndex % kNumDisplayRows;

    }

    int lastItem = mLastDisplayIndex == 0 ? (kNumDisplayRows - 1) : (mLastDisplayIndex - 1);

    MoveControl (mMarker, 96, 84 + lastItem * kInfoRowHeight);

    if (!IsCompositWindow())

        DrawOneControl (mCarbonPane);       

}

OSStatus    AUValidSamplesView::CreateSpecificUI (Float32 inXOffset, Float32 inYOffset, Rect *outSize)

{

    static const int kRowHeight = 24;

    static const int kHeadingBodyDist = 24;

    static const int kNameWidth = 100;

    int y = short(inYOffset) + kHeadingBodyDist;

    const int x = short(inXOffset) + 40;

    outSize->left= x;

    outSize->right= x;

    outSize->top = y;

    outSize->bottom = y;

    ControlFontStyleRec fontStyle;

    fontStyle.flags = kControlUseFontMask | kControlUseJustMask;

    fontStyle.font = kControlFontSmallBoldSystemFont;

    fontStyle.just = teFlushLeft;

    Rect r = *outSize;

    r.bottom += kRowHeight + 8;

    ControlRef ref;

    OSStatus result;

// Info Header

    r.left = 120;

    r.right += 300;

    require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, CFSTR("Detected Invalid Sample Information"), &fontStyle, &ref), home);

    EmbedControl(ref);

    r.top += kRowHeight;

    r.bottom = r.top + kRowHeight;

    r.left = x + 64;

    r.right = r.left;

// Column Headers

    r.right += kNameWidth;

    require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, CFSTR("Sample Offset"), &fontStyle, &ref), home);

    EmbedControl(ref);

    r.left = r.right;

    r.right = r.left + kNameWidth;

    require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, CFSTR("Channel"), &fontStyle, &ref), home);

    EmbedControl(ref);

    r.left = r.right;

    r.right = r.left + kNameWidth;

    require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, CFSTR("Value"), &fontStyle, &ref), home);

    EmbedControl(ref);

    r.top += kRowHeight;

    r.bottom = r.top + kRowHeight;

    r.left = x + 64;

    r.right = r.left;

    fontStyle.font = kControlFontSmallSystemFont;

//  mSampleDisplay[kNumDisplayRows], mChannelDisplay[kNumDisplayRows], mValueDisplay[kNumDisplayRows];

    for (mLastDisplayIndex = 0; mLastDisplayIndex < kNumDisplayRows; ++mLastDisplayIndex) 

    {

        r.right += kNameWidth;

        require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, resetStr, &fontStyle, &mSampleDisplay[mLastDisplayIndex]), home);

        EmbedControl(mSampleDisplay[mLastDisplayIndex]);

        r.left = r.right;

        r.right = r.left + kNameWidth;

        require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, resetStr, &fontStyle, &mChannelDisplay[mLastDisplayIndex]), home);

        EmbedControl(mChannelDisplay[mLastDisplayIndex]);

        r.left = r.right;

        r.right = r.left + kNameWidth;

        require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &r, resetStr, &fontStyle, &mValueDisplay[mLastDisplayIndex]), home);

        EmbedControl(mValueDisplay[mLastDisplayIndex]);

        r.top += kInfoRowHeight;

        r.bottom = r.top + kInfoRowHeight;

        r.left = x + 64;

        r.right = r.left;

    }

    mLastDisplayIndex = 0;

    Rect mr;

    mr.top = 84 + mLastDisplayIndex * kInfoRowHeight;

    mr.bottom = mr.top + kInfoRowHeight;

    mr.left = 96;

    mr.right = 106;

    require_noerr (result = CreateStaticTextControl (GetCarbonWindow(), &mr, CFSTR("*"), &fontStyle, &mMarker), home);

    EmbedControl(mMarker);

    outSize->bottom = r.bottom;

    outSize->right = y + kNameWidth + kNameWidth + kNameWidth;

    UpdateDisplay();

home:

    return result;

}

void        AUValidSamplesView::Cleanup()

{

    ClearControls();

    UInt16      numSubControls;

    ControlRef  subControl;

    if (CountSubControls (mCarbonPane, &numSubControls) == noErr){

        for (UInt16 i = numSubControls; i > 0; --i) {

            GetIndexedSubControl(mCarbonPane, i, &subControl);

            DisposeControl(subControl);

        }

    }

}

OSStatus    AUValidSamplesView::CreateUI(Float32    inXOffset, Float32  inYOffset)

{

    if (mPropertyChangeListener == NULL) {

        AUEventListenerCreate(AUPropertyChangedListener, this, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode, 0., 0., &mPropertyChangeListener);

        AudioUnitEvent e;

        e.mEventType = kAudioUnitEvent_PropertyChange;

        e.mArgument.mProperty.mAudioUnit = mEditAudioUnit;

        e.mArgument.mProperty.mPropertyID = kAudioUnitProperty_ParameterList;

        e.mArgument.mProperty.mScope = kAudioUnitScope_Global;

        e.mArgument.mProperty.mElement = 0;

        AUEventListenerAddEventType(mPropertyChangeListener, this, &e);

        e.mArgument.mProperty.mPropertyID = kAudioUnitProperty_ParameterInfo;

        AUEventListenerAddEventType(mPropertyChangeListener, this, &e);

        e.mArgument.mProperty.mPropertyID = kAUValidSamples_InvalidSamplesPropertyID;

        AUEventListenerAddEventType(mPropertyChangeListener, this, &e);

        AudioUnitGetPropertyInfo (GetEditAudioUnit(), 

                                    kAUValidSamples_InvalidSamplesPropertyID, 

                                    kAudioUnitScope_Global, 

                                    0, 

                                    &mListByteSize, 

                                    NULL);

        mPropValue = (VSInfoList*)malloc(mListByteSize);

    }

    Point location;

    location.h = 6 + short(inXOffset);

    location.v = 10 + short(inYOffset);

    static const int kParamNameWidth = 140;

    static const int kSliderWidth = 240;

    static const int kEditTextWidth = 40;

    static const int kParamTagWidth = 30;

    static const SInt16 kRightStartOffset = kParamNameWidth + kEditTextWidth + kParamTagWidth;

    static const SInt16 kTotalWidth = kRightStartOffset + kSliderWidth;

    // Display the Name of the unit

    AUControlGroup::AddAUInfo (this, location, kRightStartOffset, kTotalWidth);

    Rect theRect;

    OSStatus result = CreateSpecificUI ((Float32)location.h, (Float32) location.v, &theRect);

    if (result != noErr)

        return result;

    return CreateUIForParameters ((Float32)location.h, (Float32)theRect.bottom, &theRect);

}

void AUValidSamplesView::RebuildUI() 

{

    Cleanup();

    mBottomRight.h = mBottomRight.v = 0;

    SizeControl(mCarbonPane, 0, 0);

        // now that all controls have been removed, we need to re-add controls

    CreateUI(mXOffset, mYOffset);

        // we should only resize the control if a subclass has embedded

        // controls in this AND this is done with the EmbedControl call below

        // if mBottomRight is STILL equal to zero, then that wasn't done

        // so don't size the control

    Rect paneBounds;

    GetControlBounds(mCarbonPane, &paneBounds);

    if (mBottomRight.h != 0 && mBottomRight.v != 0)

        SizeControl(mCarbonPane, (short) (mBottomRight.h - mXOffset), (short) (mBottomRight.v - mYOffset));

}

OSStatus    AUValidSamplesView::CreateUIForParameters (Float32 inXOffset, Float32 inYOffset, Rect *outSize) 

{

    // for each parameter in the global scope, create:

    //      label   horiozontal slider  text entry  label

    // descending vertically

    // inside mCarbonWindow, embedded in mCarbonPane

    OSStatus err;

    UInt32 propertySize;

    outSize->top = (short) inYOffset;

    outSize->left= (short) inXOffset;

    outSize->bottom = outSize->top;

    outSize->right  = outSize->left;

    err = AudioUnitGetPropertyInfo(mEditAudioUnit, kAudioUnitProperty_ParameterList,

        kAudioUnitScope_Global, 0, &propertySize, NULL);

    if (err) return err;

    if (propertySize == 0)

        return noErr;

    int nparams = propertySize / sizeof(AudioUnitPropertyID);

    AudioUnitParameterID *paramIDs = new AudioUnitParameterID[nparams];

    err = AudioUnitGetProperty(mEditAudioUnit, kAudioUnitProperty_ParameterList,

        kAudioUnitScope_Global, 0, paramIDs, &propertySize);

    typedef std::vector <CAAUParameter> SortedParamList;

    typedef std::map <UInt32, SortedParamList, std::less<UInt32> > ParameterMap;

    ParameterMap params;

    if (!err) {

        for (int i = 0; i < nparams; ++i) {

            CAAUParameter auvp(mEditAudioUnit, paramIDs[i], kAudioUnitScope_Global, 0);

            const AudioUnitParameterInfo &paramInfo = auvp.ParamInfo();

            if (paramInfo.flags & kAudioUnitParameterFlag_ExpertMode)

                continue;

            if (!(paramInfo.flags & kAudioUnitParameterFlag_IsWritable)

                    && !(paramInfo.flags & kAudioUnitParameterFlag_IsReadable))

                continue;

            // ok - if we're here, then we have a parameter we are going to display.

            UInt32 clump = 0;

            auvp.GetClumpID (clump);

            params[clump].push_back (auvp);

        }

    }

    delete[] paramIDs;

    if (!err) {

        int y = short(inYOffset);

        const int x = short(inXOffset);

        Point location;

        location.h = x;

        location.v = y;

        ControlFontStyleRec fontStyle;

        fontStyle.flags = kControlUseFontMask | kControlUseJustMask;

        fontStyle.font = kControlFontSmallSystemFont;

        if (nparams > 0) {

            // Create the header for the parameters

            Rect r = {location.v, location.h, location.v + kRowHeight, location.h + 66};

            ControlRef ref;

            fontStyle.font = kControlFontSmallBoldSystemFont;

            OSErr theErr =  CreateStaticTextControl (GetCarbonWindow(), &r, kParametersLabelString, &fontStyle, &ref);

            if (theErr == noErr) {

                EmbedControl(ref);

                r.left = r.right + 2;

                r.right = location.h + 440;

                r.bottom -= 5;

                if (noErr == CreateSeparatorControl (GetCarbonWindow(), &r, &ref))

                EmbedControl(ref);

                y += kRowHeight;

                location.v += kRowHeight;

                outSize->bottom += kRowHeight;

            }

            fontStyle.font = kControlFontSmallSystemFont;

        }

        ParameterMap::iterator i = params.begin();

        while (1) {

            if (i != params.end()) {

                for (SortedParamList::iterator piter = (*i).second.begin(); piter != (*i).second.end(); ++piter)

                {

                    DrawParameter (*piter, x, y, fontStyle, outSize);

                    y += kRowHeight;

                    outSize->bottom += kRowHeight;

                }

            }

            if (i != params.end() && ++i != params.end()) {

                y += kClumpSeparator;

                outSize->bottom += kClumpSeparator;

            } else {

                // now we want to add 16 pixels to the bottom and the right

                mBottomRight.h += 16;

                mBottomRight.v += 16;

                break;

            }

        }

    }

    return noErr;

}

void    AUValidSamplesView::DrawParameter (CAAUParameter &auvp, const int x, int &y, ControlFontStyleRec &fontStyle, Rect *outSize)

{

    ControlRef newControl;          

    Rect r;

    if (auvp.HasNamedParams())                                  // NAMED PARAMETER (POPUP)

    {

        fontStyle.font = kControlFontSmallSystemFont;

        r.top = y + 2;      r.bottom = r.top + kTextHeight;

        r.left = x;     r.right = r.left + kParamNameWidth;

        fontStyle.just = teFlushRight;

        CFMutableStringRef str = CFStringCreateMutableCopy(NULL, CFStringGetLength(auvp.GetName()) + 1, auvp.GetName());

        CFStringAppend (str, CFSTR(":"));

        if (noErr == CreateStaticTextControl(mCarbonWindow, 

                                            &r,

                                            str, 

                                            &fontStyle, 

                                            &newControl)) 

            verify_noerr(EmbedControl(newControl));

        CFRelease (str);

        static int topOffset = -100;

        static int rowOffset = -100;

        if (topOffset == -100) {

            SInt32 sysVers;

            Gestalt(gestaltSystemVersion, &sysVers);

            // 1030 for Panther

            SInt32 minorVers = sysVers & 0xFF;

            SInt32 majorVers = (sysVers & 0xFF00) >> 8;

            topOffset = 2;

            rowOffset = 5;

            if (majorVers == 0x10 && minorVers < 0x30) {

                topOffset = 4;

                rowOffset = 7;

            }

        }

        r.top -= topOffset; // Jaguar 4 Panther 2

        r.left = r.right + 8;   r.right = r.left + kSliderWidth + kPopupAdjustment;

        r.bottom += 5;

        fontStyle.font = kControlFontSmallSystemFont;

        AUControlGroup::CreatePopupMenu (this, auvp, r, fontStyle);

        if (outSize->right - outSize->left < r.right - r.left)

            outSize->right = outSize->left + (r.right - r.left);

        y += rowOffset; // Jaguar 7 - Panther 5

    } 

    else if (auvp.ParamInfo().unit == kAudioUnitParameterUnit_Boolean)  // BOOLEAN (Checkbox)

    {

        fontStyle.font = kControlFontSmallSystemFont;

        Rect r;

        r.top = y;                              r.bottom = r.top + kTextHeight; // tail allowance

        r.left = x + kParamNameWidth + kMinMaxWidth + 10;       r.right = r.left + 100;

        r.top -= 1;

        r.bottom -= 2;

        CFMutableStringRef str = CFStringCreateMutableCopy(NULL, CFStringGetLength(auvp.GetName()), auvp.GetName());

        if (noErr == CreateCheckBoxControl(GetCarbonWindow(), 

                                            &r, 

                                            str, 

                                            0, 

                                            true, 

                                            &newControl)) 

        {

            verify_noerr (SetControlFontStyle (newControl, &fontStyle));

            SInt16 baseLineOffset;

            verify_noerr (GetBestControlRect (newControl, &r, &baseLineOffset));

            r.bottom += baseLineOffset;

            SetControlBounds (newControl, &r);

            EmbedControl (newControl);

            AddCarbonControl(AUCarbonViewControl::kTypeDiscrete, auvp, newControl);

        }

        CFRelease (str);

        if (outSize->right - outSize->left < r.right - r.left)

            outSize->right = outSize->left + (r.right - r.left);

        y -= 4;

    }

    else                                                                // ALL OTHERS (Slider control)

    {

        fontStyle.font = kControlFontSmallSystemFont;

        r.top = y;      r.bottom = y + kTextHeight; // for tails of letters

        r.left = x;     r.right = r.left + kParamNameWidth;

        fontStyle.just = teFlushRight;

        int theWidth = r.right - r.left;

        r.top += 1;

        r.bottom += 1;

        CFMutableStringRef str = CFStringCreateMutableCopy(NULL, CFStringGetLength(auvp.GetName())+1, auvp.GetName());

        CFStringAppend (str, CFSTR(":"));

        if (noErr == CreateStaticTextControl(mCarbonWindow, &r, str, &fontStyle, &newControl))

            verify_noerr(EmbedControl(newControl));

        CFRelease (str);

        r.left = r.right + 8;   r.right = r.left + kSliderWidth;

        theWidth += 8 + kSliderWidth;

        r.bottom -= 2; // take the tail adjustement out

        Point labelSize, textSize;

        labelSize.v = textSize.v = kTextHeight - 3;

        labelSize.h = kMinMaxWidth;

        textSize.h = kEditTextWidth;

        AUControlGroup::CreateLabelledSliderAndEditText(this, auvp, r, labelSize, textSize, fontStyle);                 

        if (auvp.GetParamTag()) {

            r.left = r.right + 8;   r.right = r.left + kParamTagWidth;

            fontStyle.just = 0;

            // try to localize param tag

            CFStringRef tagString = auvp.GetParamTag();

            if (noErr == CreateStaticTextControl(mCarbonWindow, &r, tagString, &fontStyle, &newControl))

                verify_noerr(EmbedControl(newControl));

            theWidth += 8 + kParamTagWidth;

        }

        if (outSize->right - outSize->left < theWidth) {

            outSize->right = outSize->left + theWidth;

        }

    }

}

void    AUValidSamplesView::AUPropertyChangedListener(  void *                  inCallbackRefCon,

                                                    void *                      inObject,

                                                    const AudioUnitEvent *      inEvent,

                                                    UInt64                      inEventHostTime,

                                                    Float32                     inParameterValue)

{

    if (inEvent->mEventType == kAudioUnitEvent_PropertyChange)

    {

        if (inEvent->mArgument.mProperty.mPropertyID == kAudioUnitProperty_ParameterList 

            || inEvent->mArgument.mProperty.mPropertyID == kAudioUnitProperty_ParameterInfo) 

        {

            AUValidSamplesView *This = static_cast<AUValidSamplesView *>(inCallbackRefCon);

            This->RebuildUI();

        }

        else if (inEvent->mArgument.mProperty.mPropertyID == kAUValidSamples_InvalidSamplesPropertyID) 

        {

            AUValidSamplesView *This = static_cast<AUValidSamplesView *>(inCallbackRefCon);

            This->UpdateDisplay();

        }

    }

}