fbfcd56021
This CL is part I of IV (I broke down the 1280 files into 4 CLs). Review URL: https://codereview.appspot.com/6485054 git-svn-id: http://skia.googlecode.com/svn/trunk@5262 2bbb7eff-a529-9590-31e7-b0007b416f81
89 lines
2.0 KiB
C++
89 lines
2.0 KiB
C++
/*
|
|
* Copyright 2012 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef SkDataSet_DEFINED
|
|
#define SkDataSet_DEFINED
|
|
|
|
#include "SkData.h"
|
|
#include "SkFlattenable.h"
|
|
|
|
class SkStream;
|
|
class SkWStream;
|
|
|
|
class SkDataSet : public SkFlattenable {
|
|
public:
|
|
/**
|
|
* Returns a new empty dataset. Note: since SkDataSet is immutable, this
|
|
* "new" set may be the same one that was returned before, but each
|
|
* returned object must have its reference-count balanced regardless.
|
|
*
|
|
* SkDataSet* empty = SkDataSet::NewEmpty();
|
|
* ...
|
|
* empty->unref();
|
|
*/
|
|
static SkDataSet* NewEmpty();
|
|
|
|
struct Pair {
|
|
const char* fKey;
|
|
SkData* fValue;
|
|
};
|
|
|
|
SkDataSet(const char key[], SkData* value);
|
|
SkDataSet(const Pair[], int count);
|
|
virtual ~SkDataSet();
|
|
|
|
bool isEmpty() const { return 0 == fCount; }
|
|
int count() const { return fCount; }
|
|
SkData* find(const char name[]) const;
|
|
|
|
class Iter {
|
|
public:
|
|
Iter(const SkDataSet& ds) {
|
|
fPair = ds.fPairs;
|
|
fStop = ds.fPairs + ds.fCount;
|
|
}
|
|
|
|
const char* key() const {
|
|
SkASSERT(!this->done());
|
|
return fPair->fKey;
|
|
}
|
|
|
|
SkData* value() const {
|
|
SkASSERT(!this->done());
|
|
return fPair->fValue;
|
|
}
|
|
|
|
bool done() const { return fPair >= fStop; }
|
|
void next() {
|
|
SkASSERT(!this->done());
|
|
fPair += 1;
|
|
}
|
|
|
|
private:
|
|
const SkDataSet::Pair* fPair;
|
|
const SkDataSet::Pair* fStop;
|
|
};
|
|
|
|
explicit SkDataSet(SkStream*);
|
|
void writeToStream(SkWStream*) const;
|
|
|
|
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDataSet)
|
|
|
|
protected:
|
|
SkDataSet(SkFlattenableReadBuffer&);
|
|
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
|
|
|
|
private:
|
|
int32_t fCount;
|
|
uint32_t fKeySize;
|
|
Pair* fPairs;
|
|
|
|
typedef SkFlattenable INHERITED;
|
|
};
|
|
|
|
#endif
|