Home | History | Annotate | Download | only in data
      1 /*
      2  * Copyright 2011 Google Inc. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef SFNTLY_CPP_SRC_SFNTLY_DATA_GROWABLE_MEMORY_BYTE_ARRAY_H_
     18 #define SFNTLY_CPP_SRC_SFNTLY_DATA_GROWABLE_MEMORY_BYTE_ARRAY_H_
     19 
     20 #include "sfntly/data/byte_array.h"
     21 
     22 namespace sfntly {
     23 
     24 // Note: This is not really a port of Java version. Instead, this wraps a
     25 //       std::vector inside and let it grow by calling resize().
     26 class GrowableMemoryByteArray : public ByteArray,
     27                                 public RefCounted<GrowableMemoryByteArray> {
     28  public:
     29   GrowableMemoryByteArray();
     30   virtual ~GrowableMemoryByteArray();
     31   virtual int32_t CopyTo(OutputStream* os, int32_t offset, int32_t length);
     32 
     33   // Make gcc -Woverloaded-virtual happy.
     34   virtual int32_t CopyTo(ByteArray* array) { return ByteArray::CopyTo(array); }
     35   virtual int32_t CopyTo(ByteArray* array, int32_t offset, int32_t length) {
     36     return ByteArray::CopyTo(array, offset, length);
     37   }
     38   virtual int32_t CopyTo(int32_t dst_offset,
     39                          ByteArray* array,
     40                          int32_t src_offset,
     41                          int32_t length) {
     42     return ByteArray::CopyTo(dst_offset, array, src_offset, length);
     43   }
     44   virtual int32_t CopyTo(OutputStream* os) { return ByteArray::CopyTo(os); }
     45 
     46  protected:
     47   virtual void InternalPut(int32_t index, byte_t b);
     48   virtual int32_t InternalPut(int32_t index,
     49                               byte_t* b,
     50                               int32_t offset,
     51                               int32_t length);
     52   virtual byte_t InternalGet(int32_t index);
     53   virtual int32_t InternalGet(int32_t index,
     54                               byte_t* b,
     55                               int32_t offset,
     56                               int32_t length);
     57   virtual void Close();
     58   virtual byte_t* Begin();
     59 
     60  private:
     61   ByteVector b_;
     62 };
     63 
     64 }  // namespace sfntly
     65 
     66 #endif  // SFNTLY_CPP_SRC_SFNTLY_DATA_GROWABLE_MEMORY_BYTE_ARRAY_H_
     67