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nsSVGPathSegList Class Reference
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List of all members.

Public Types

enum  modificationType { mod_other = 0, mod_context, mod_die }

Public Member Functions

NS_DECL_ISUPPORTS
NS_DECL_NSIDOMSVGPATHSEGLIST
NS_IMETHOD 
SetValueString (const nsAString &aValue)
NS_IMETHOD GetValueString (nsAString &aValue)
NS_IMETHOD WillModifySVGObservable (nsISVGValue *observable, modificationType aModType)
NS_IMETHOD DidModifySVGObservable (nsISVGValue *observable, modificationType aModType)
void clear ()
nsIDOMSVGPathSeg initialize (in nsIDOMSVGPathSeg newItem)
nsIDOMSVGPathSeg getItem (in unsigned long index)
nsIDOMSVGPathSeg insertItemBefore (in nsIDOMSVGPathSeg newItem, in unsigned long index)
nsIDOMSVGPathSeg replaceItem (in nsIDOMSVGPathSeg newItem, in unsigned long index)
nsIDOMSVGPathSeg removeItem (in unsigned long index)
nsIDOMSVGPathSeg appendItem (in nsIDOMSVGPathSeg newItem)
NS_IMETHOD AddObserver (nsISVGValueObserver *observer)
NS_IMETHOD RemoveObserver (nsISVGValueObserver *observer)
NS_IMETHOD BeginBatchUpdate ()
NS_IMETHOD EndBatchUpdate ()
typedef NS_STDCALL_FUNCPROTO (nsresult, SVGObserverNotifyFunction, nsISVGValueObserver, DidModifySVGObservable,(nsISVGValue *, nsISVGValue::modificationType))

Public Attributes

readonly attribute unsigned long numberOfItems

Protected Member Functions

 nsSVGPathSegList ()
 ~nsSVGPathSegList ()
nsIDOMSVGPathSegElementAt (PRInt32 index)
void AppendElement (nsIDOMSVGPathSeg *aElement)
void RemoveElementAt (PRInt32 index)
void InsertElementAt (nsIDOMSVGPathSeg *aElement, PRInt32 index)
void ReleaseSegments ()
void WillModify (modificationType aModType=mod_other)
void DidModify (modificationType aModType=mod_other)
void ReleaseObservers ()
void NotifyObservers (SVGObserverNotifyFunction f, modificationType aModType)
PRInt32 GetModifyNestCount ()

Protected Attributes

nsVoidArray mSegments

Friends

nsresult NS_NewSVGPathSegList (nsIDOMSVGPathSegList **result)
class nsSVGValueAutoNotifier

Detailed Description

Definition at line 52 of file nsSVGPathSegList.cpp.


Member Enumeration Documentation

Enumerator:
mod_other 
mod_context 
mod_die 

Definition at line 68 of file nsISVGValue.h.


Constructor & Destructor Documentation

Definition at line 100 of file nsSVGPathSegList.cpp.

{
}

Definition at line 104 of file nsSVGPathSegList.cpp.

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Member Function Documentation

NS_IMETHODIMP nsSVGValue::AddObserver ( nsISVGValueObserver observer) [virtual, inherited]

Implements nsISVGValue.

Definition at line 97 of file nsSVGValue.cpp.

{
  nsIWeakReference* wr = NS_GetWeakReference(observer);
  if (!wr) return NS_ERROR_FAILURE;
  mObservers.AppendElement((void*)wr);
  return NS_OK;
}

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Definition at line 340 of file nsSVGPathSegList.cpp.

{
  WillModify();
  NS_ADDREF(aElement);
  mSegments.AppendElement((void*)aElement);
  nsCOMPtr<nsISVGValue> val = do_QueryInterface(aElement);
  if (val)
    val->AddObserver(this);
  DidModify();
}

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NS_IMETHODIMP nsSVGValue::BeginBatchUpdate ( ) [virtual, inherited]

Implements nsISVGValue.

Definition at line 119 of file nsSVGValue.cpp.

{
  WillModify();
  return NS_OK;
}

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void nsSVGValue::DidModify ( modificationType  aModType = mod_other) [protected, inherited]

Definition at line 86 of file nsSVGValue.cpp.

{
  NS_ASSERTION(mModifyNestCount>0, "unbalanced Will/DidModify calls");
  if (--mModifyNestCount == 0) {
    OnDidModify();
    NotifyObservers(&nsISVGValueObserver::DidModifySVGObservable, aModType);
  }
}

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Implements nsISVGValueObserver.

Definition at line 307 of file nsSVGPathSegList.cpp.

{
  DidModify(aModType);
  return NS_OK;
}

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Definition at line 334 of file nsSVGPathSegList.cpp.

{
  return (nsIDOMSVGPathSeg*)mSegments.ElementAt(index);
}

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NS_IMETHODIMP nsSVGValue::EndBatchUpdate ( ) [virtual, inherited]

Implements nsISVGValue.

Definition at line 126 of file nsSVGValue.cpp.

{
  DidModify();
  return NS_OK;
}

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nsIDOMSVGPathSeg nsIDOMSVGPathSegList::getItem ( in unsigned long  index) [inherited]
PRInt32 nsSVGValue::GetModifyNestCount ( ) [inline, protected, inherited]

Definition at line 79 of file nsSVGValue.h.

{ return mModifyNestCount; }
NS_IMETHODIMP nsSVGPathSegList::GetValueString ( nsAString &  aValue) [virtual]

Implements nsISVGValue.

Definition at line 165 of file nsSVGPathSegList.cpp.

{
  aValue.Truncate();

  PRInt32 count = mSegments.Count();

  if (count<=0) return NS_OK;

  PRInt32 i = 0;
  
  while (1) {
    nsIDOMSVGPathSeg* seg = ElementAt(i);
    nsCOMPtr<nsISVGValue> val = do_QueryInterface(seg);
    NS_ASSERTION(val, "path segment doesn't implement required interface");
    if (!val) continue;
    nsAutoString str;
    val->GetValueString(str);
    aValue.Append(str);

    if (++i >= count) break;

    aValue.AppendLiteral(" ");
  }
  
  return NS_OK;
}

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void nsSVGPathSegList::InsertElementAt ( nsIDOMSVGPathSeg aElement,
PRInt32  index 
) [protected]

Definition at line 366 of file nsSVGPathSegList.cpp.

{
  WillModify();
  NS_ADDREF(aElement);
  mSegments.InsertElementAt((void*)aElement, index);
  nsCOMPtr<nsISVGValue> val = do_QueryInterface(aElement);
  if (val)
    val->AddObserver(this);
  DidModify();
}

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nsIDOMSVGPathSeg nsIDOMSVGPathSegList::insertItemBefore ( in nsIDOMSVGPathSeg  newItem,
in unsigned long  index 
) [inherited]
void nsSVGValue::NotifyObservers ( SVGObserverNotifyFunction  f,
modificationType  aModType 
) [protected, inherited]

Definition at line 66 of file nsSVGValue.cpp.

{
  PRInt32 count = mObservers.Count();
  for (PRInt32 i = 0; i < count; ++i) {
    nsIWeakReference* wr = NS_STATIC_CAST(nsIWeakReference*,mObservers.ElementAt(i));
    nsCOMPtr<nsISVGValueObserver> observer = do_QueryReferent(wr);
    if (observer)
       (NS_STATIC_CAST(nsISVGValueObserver*,observer)->*f)(this, aModType);
  }
}

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typedef nsSVGValue::NS_STDCALL_FUNCPROTO ( nsresult  ,
SVGObserverNotifyFunction  ,
nsISVGValueObserver  ,
DidModifySVGObservable  ,
(nsISVGValue *, nsISVGValue::modificationType  
) [inherited]
void nsSVGValue::ReleaseObservers ( ) [protected, inherited]

Definition at line 53 of file nsSVGValue.cpp.

{
  PRInt32 count = mObservers.Count();
  PRInt32 i;
  for (i = 0; i < count; ++i) {
    nsIWeakReference* wr = NS_STATIC_CAST(nsIWeakReference*,mObservers.ElementAt(i));
    NS_RELEASE(wr);
  }
  while (i)
    mObservers.RemoveElementAt(--i);
}

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Definition at line 318 of file nsSVGPathSegList.cpp.

{
  WillModify();
  PRInt32 count = mSegments.Count();
  for (PRInt32 i = 0; i < count; ++i) {
    nsIDOMSVGPathSeg* seg = ElementAt(i);
    nsCOMPtr<nsISVGValue> val = do_QueryInterface(seg);
    if (val)
      val->RemoveObserver(this);
    NS_RELEASE(seg);
  }
  mSegments.Clear();
  DidModify();
}

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Definition at line 352 of file nsSVGPathSegList.cpp.

{
  WillModify();
  nsIDOMSVGPathSeg* seg = ElementAt(index);
  NS_ASSERTION(seg, "null pathsegment");
  nsCOMPtr<nsISVGValue> val = do_QueryInterface(seg);
  if (val)
    val->RemoveObserver(this);
  mSegments.RemoveElementAt(index);
  NS_RELEASE(seg);
  DidModify();
}

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nsIDOMSVGPathSeg nsIDOMSVGPathSegList::removeItem ( in unsigned long  index) [inherited]
NS_IMETHODIMP nsSVGValue::RemoveObserver ( nsISVGValueObserver observer) [virtual, inherited]

Implements nsISVGValue.

Definition at line 106 of file nsSVGValue.cpp.

{
  nsCOMPtr<nsIWeakReference> wr = do_GetWeakReference(observer);
  if (!wr) return NS_ERROR_FAILURE;
  PRInt32 i = mObservers.IndexOf((void*)wr);
  if (i<0) return NS_ERROR_FAILURE;
  nsIWeakReference* wr2 = NS_STATIC_CAST(nsIWeakReference*,mObservers.ElementAt(i));
  NS_RELEASE(wr2);
  mObservers.RemoveElementAt(i);
  return NS_OK;
}

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nsIDOMSVGPathSeg nsIDOMSVGPathSegList::replaceItem ( in nsIDOMSVGPathSeg  newItem,
in unsigned long  index 
) [inherited]

Implements nsISVGValue.

Definition at line 128 of file nsSVGPathSegList.cpp.

{
  nsresult rv;

  char *str = ToNewCString(aValue);

  nsVoidArray data;
  nsSVGPathDataParser parser(&data);
  rv = parser.Parse(str);
  
  if (NS_SUCCEEDED(rv)) {
    WillModify();
    ReleaseSegments();
    mSegments = data;
    PRInt32 count = mSegments.Count();
    for (PRInt32 i=0; i<count; ++i) {
      nsIDOMSVGPathSeg* seg = ElementAt(i);
      nsCOMPtr<nsISVGValue> val = do_QueryInterface(seg);
      if (val)
        val->AddObserver(this);
    }
    DidModify();
  }
  else {
    NS_ERROR("path data parse error!");    
    PRInt32 count = data.Count();
    for (PRInt32 i=0; i<count; ++i) {
      nsIDOMSVGPathSeg* seg = (nsIDOMSVGPathSeg*)data.ElementAt(i);
      NS_RELEASE(seg);
    }
  }
  
  nsMemory::Free(str);
  return rv;
}

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void nsSVGValue::WillModify ( modificationType  aModType = mod_other) [protected, inherited]

Definition at line 79 of file nsSVGValue.cpp.

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Implements nsISVGValueObserver.

Definition at line 299 of file nsSVGPathSegList.cpp.

{
  WillModify(aModType);
  return NS_OK;
}

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Friends And Related Function Documentation

Definition at line 382 of file nsSVGPathSegList.cpp.

{
  *result = nsnull;
  
  nsSVGPathSegList* pathSegList = new nsSVGPathSegList();
  if (!pathSegList) return NS_ERROR_OUT_OF_MEMORY;
  NS_ADDREF(pathSegList);

  // pathSegList->Init();
  
  *result = (nsIDOMSVGPathSegList*) pathSegList;
  
  return NS_OK;
}
friend class nsSVGValueAutoNotifier [friend, inherited]

Definition at line 59 of file nsSVGValue.h.


Member Data Documentation

Definition at line 93 of file nsSVGPathSegList.cpp.

readonly attribute unsigned long nsIDOMSVGPathSegList::numberOfItems [inherited]

Definition at line 46 of file nsIDOMSVGPathSegList.idl.


The documentation for this class was generated from the following file: