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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_TEXTOUTPUT_H

 #define ANDROID_TEXTOUTPUT_H

 #include <utils/Errors.h>

 #include <stdint.h>

 #include <string.h>

 // ---------------------------------------------------------------------------

 namespace android {

 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 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;

 // Text output stream for printing to stdout.

 extern TextOutput& aout;

 // Text output stream for printing to stderr.

 extern TextOutput& aerr;

 typedef TextOutput& (*TextOutputManipFunc)(TextOutput&);

 TextOutput& endl(TextOutput& to);

 TextOutput& indent(TextOutput& to);

 TextOutput& dedent(TextOutput& to);

 TextOutput& operator<<(TextOutput& to, const char* str);

 TextOutput& operator<<(TextOutput& to, char);     // writes raw character

 TextOutput& operator<<(TextOutput& to, bool);

 TextOutput& operator<<(TextOutput& to, int);

 TextOutput& operator<<(TextOutput& to, long);

 TextOutput& operator<<(TextOutput& to, unsigned int);

 TextOutput& operator<<(TextOutput& to, unsigned long);

 TextOutput& operator<<(TextOutput& to, long long);

 TextOutput& operator<<(TextOutput& to, unsigned long long);

 TextOutput& operator<<(TextOutput& to, float);

 TextOutput& operator<<(TextOutput& to, double);

 TextOutput& operator<<(TextOutput& to, TextOutputManipFunc func);

 TextOutput& operator<<(TextOutput& to, const void*);

 class TypeCode 

 {

 public:

     inline 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);

 // ---------------------------------------------------------------------------

 // 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, const char* str)

 {

     to.print(str, strlen(str));

     return to;

 }

 inline TextOutput& operator<<(TextOutput& to, char c)

 {

     to.print(&c, 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 android

 #endif // ANDROID_TEXTOUTPUT_H