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Diffstat (limited to 'include/utils/TextOutput.h')
-rw-r--r-- | include/utils/TextOutput.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/utils/TextOutput.h b/include/utils/TextOutput.h new file mode 100644 index 0000000..d8d86ba --- /dev/null +++ b/include/utils/TextOutput.h @@ -0,0 +1,190 @@ +/* + * 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 |