1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8#ifndef SkPathHeap_DEFINED
9#define SkPathHeap_DEFINED
10
11#include "SkRefCnt.h"
12#include "SkChunkAlloc.h"
13#include "SkTDArray.h"
14
15class SkPath;
16class SkFlattenableReadBuffer;
17class SkFlattenableWriteBuffer;
18
19class SkPathHeap : public SkRefCnt {
20public:
21    SK_DECLARE_INST_COUNT(SkPathHeap)
22
23    SkPathHeap();
24    SkPathHeap(SkFlattenableReadBuffer&);
25    virtual ~SkPathHeap();
26
27    /** Copy the path into the heap, and return the new total number of paths.
28        Thus, the returned value will be index+1, where index is the index of
29        this newly added (copied) path.
30     */
31    int append(const SkPath&);
32
33    // called during picture-playback
34    int count() const { return fPaths.count(); }
35    const SkPath& operator[](int index) const {
36        return *fPaths[index];
37    }
38
39    void flatten(SkFlattenableWriteBuffer&) const;
40
41private:
42    // we store the paths in the heap (placement new)
43    SkChunkAlloc        fHeap;
44    // we just store ptrs into fHeap here
45    SkTDArray<SkPath*>  fPaths;
46
47    typedef SkRefCnt INHERITED;
48};
49
50#endif
51