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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_HARDWARE_TEXTOUTPUT_H
#define ANDROID_HARDWARE_TEXTOUTPUT_H
#include <utils/Errors.h>
#include <utils/String8.h>
#include <stdint.h>
#include <string.h>
#include <sstream>
// ---------------------------------------------------------------------------
namespace android {
namespace hardware {
class TextOutput
{
public:
TextOutput();
virtual ~TextOutput();
virtual status_t print(const char* txt, size_t len) = 0;
virtual void moveIndent(int delta) = 0;
class Bundle {
public:
inline explicit Bundle(TextOutput& to) : mTO(to) { to.pushBundle(); }
inline ~Bundle() { mTO.popBundle(); }
private:
TextOutput& mTO;
};
virtual void pushBundle() = 0;
virtual void popBundle() = 0;
};
// ---------------------------------------------------------------------------
// Text output stream for printing to the log (via utils/Log.h).
extern TextOutput& alog;
typedef TextOutput& (*TextOutputManipFunc)(TextOutput&);
TextOutput& endl(TextOutput& to);
TextOutput& indent(TextOutput& to);
TextOutput& dedent(TextOutput& to);
template<typename T>
TextOutput& operator<<(TextOutput& to, const T& val)
{
std::stringstream strbuf;
strbuf << val;
std::string str = strbuf.str();
to.print(str.c_str(), str.size());
return to;
}
TextOutput& operator<<(TextOutput& to, TextOutputManipFunc func);
class TypeCode
{
public:
inline explicit TypeCode(uint32_t code);
inline ~TypeCode();
inline uint32_t typeCode() const;
private:
uint32_t mCode;
};
TextOutput& operator<<(TextOutput& to, const TypeCode& val);
class HexDump
{
public:
HexDump(const void *buf, size_t size, size_t bytesPerLine=16);
inline ~HexDump();
inline HexDump& setBytesPerLine(size_t bytesPerLine);
inline HexDump& setSingleLineCutoff(int32_t bytes);
inline HexDump& setAlignment(size_t alignment);
inline HexDump& setCArrayStyle(bool enabled);
inline const void* buffer() const;
inline size_t size() const;
inline size_t bytesPerLine() const;
inline int32_t singleLineCutoff() const;
inline size_t alignment() const;
inline bool carrayStyle() const;
private:
const void* mBuffer;
size_t mSize;
size_t mBytesPerLine;
int32_t mSingleLineCutoff;
size_t mAlignment;
bool mCArrayStyle;
};
TextOutput& operator<<(TextOutput& to, const HexDump& val);
inline TextOutput& operator<<(TextOutput& to,
decltype(std::endl<char,
std::char_traits<char>>)
/*val*/) {
endl(to);
return to;
}
inline TextOutput& operator<<(TextOutput& to, const char &c)
{
to.print(&c, 1);
return to;
}
inline TextOutput& operator<<(TextOutput& to, const bool &val)
{
if (val) to.print("true", 4);
else to.print("false", 5);
return to;
}
inline TextOutput& operator<<(TextOutput& to, const String16& val)
{
to << String8(val).c_str();
return to;
}
// ---------------------------------------------------------------------------
// No user servicable parts below.
inline TextOutput& endl(TextOutput& to)
{
to.print("\n", 1);
return to;
}
inline TextOutput& indent(TextOutput& to)
{
to.moveIndent(1);
return to;
}
inline TextOutput& dedent(TextOutput& to)
{
to.moveIndent(-1);
return to;
}
inline TextOutput& operator<<(TextOutput& to, TextOutputManipFunc func)
{
return (*func)(to);
}
inline TypeCode::TypeCode(uint32_t code) : mCode(code) { }
inline TypeCode::~TypeCode() { }
inline uint32_t TypeCode::typeCode() const { return mCode; }
inline HexDump::~HexDump() { }
inline HexDump& HexDump::setBytesPerLine(size_t bytesPerLine) {
mBytesPerLine = bytesPerLine; return *this;
}
inline HexDump& HexDump::setSingleLineCutoff(int32_t bytes) {
mSingleLineCutoff = bytes; return *this;
}
inline HexDump& HexDump::setAlignment(size_t alignment) {
mAlignment = alignment; return *this;
}
inline HexDump& HexDump::setCArrayStyle(bool enabled) {
mCArrayStyle = enabled; return *this;
}
inline const void* HexDump::buffer() const { return mBuffer; }
inline size_t HexDump::size() const { return mSize; }
inline size_t HexDump::bytesPerLine() const { return mBytesPerLine; }
inline int32_t HexDump::singleLineCutoff() const { return mSingleLineCutoff; }
inline size_t HexDump::alignment() const { return mAlignment; }
inline bool HexDump::carrayStyle() const { return mCArrayStyle; }
// ---------------------------------------------------------------------------
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_TEXTOUTPUT_H
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