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/*
* GCodeBuffer.h
*
* Created on: 6 Feb 2015
* Author: David
*/
#ifndef GCODEBUFFER_H_
#define GCODEBUFFER_H_
#include "RepRapFirmware.h"
#include "GCodeMachineState.h"
#include "MessageType.h"
// Class to hold an individual GCode and provide functions to allow it to be parsed
class GCodeBuffer
{
public:
GCodeBuffer(const char* id, MessageType mt);
void Init(); // Set it up
void Diagnostics(MessageType mtype); // Write some debug info
bool Put(char c); // Add a character to the end
bool Put(const char *str, size_t len); // Add an entire string
bool IsEmpty() const; // Does this buffer contain any code?
bool Seen(char c); // Is a character present?
float GetFValue(); // Get a float after a key letter
int32_t GetIValue(); // Get an integer after a key letter
void TryGetFValue(char c, float& val, bool& seen);
void TryGetIValue(char c, int32_t& val, bool& seen);
const char* GetUnprecedentedString(bool optional = false); // Get a string with no preceding key letter
const char* GetString(); // Get a string after a key letter
const void GetFloatArray(float a[], size_t& length, bool doPad); // Get a :-separated list of floats after a key letter
const void GetLongArray(long l[], size_t& length); // Get a :-separated list of longs after a key letter
const char* Buffer() const;
bool IsIdle() const;
bool IsReady() const; // Return true if a gcode is ready but hasn't been started yet
bool IsExecuting() const; // Return true if a gcode has been started and is not paused
void SetFinished(bool f); // Set the G Code executed (or not)
const char* WritingFileDirectory() const; // If we are writing the G Code to a file, where that file is
void SetWritingFileDirectory(const char* wfd); // Set the directory for the file to write the GCode in
int GetToolNumberAdjust() const { return toolNumberAdjust; }
void SetToolNumberAdjust(int arg) { toolNumberAdjust = arg; }
void SetCommsProperties(uint32_t arg) { checksumRequired = (arg & 1); }
bool StartingNewCode() const { return gcodePointer == 0; }
MessageType GetResponseMessageType() const { return responseMessageType; }
GCodeMachineState& MachineState() const { return *machineState; }
GCodeMachineState& OriginalMachineState() const;
bool PushState(); // Push state returning true if successful (i.e. stack not overflowed)
bool PopState(); // Pop state returning true if successful (i.e. no stack underrun)
bool IsDoingFileMacro() const; // Return true if this source is executing a file macro
GCodeState GetState() const;
void SetState(GCodeState newState);
void AdvanceState();
const char *GetIdentity() const { return identity; }
private:
enum class GCodeBufferState
{
idle, // we don't have a complete gcode ready
ready, // we have a complete gcode but haven't started executing it
executing // we have a complete gcode and have started executing it
};
int CheckSum() const; // Compute the checksum (if any) at the end of the G Code
GCodeMachineState *machineState; // Machine state for this gcode source
char gcodeBuffer[GCODE_LENGTH]; // The G Code
const char* identity; // Where we are from (web, file, serial line etc)
int gcodePointer; // Index in the buffer
int readPointer; // Where in the buffer to read next
bool inComment; // Are we after a ';' character?
bool checksumRequired; // True if we only accept commands with a valid checksum
GCodeBufferState bufferState; // Idle, executing or paused
const char* writingFileDirectory; // If the G Code is going into a file, where that is
int toolNumberAdjust; // The adjustment to tool numbers in commands we receive
const MessageType responseMessageType; // The message type we use for responses to commands coming from this channel
};
inline const char* GCodeBuffer::Buffer() const
{
return gcodeBuffer;
}
inline bool GCodeBuffer::IsIdle() const
{
return bufferState == GCodeBufferState::idle;
}
inline bool GCodeBuffer::IsReady() const
{
return bufferState == GCodeBufferState::ready;
}
inline bool GCodeBuffer::IsExecuting() const
{
return bufferState == GCodeBufferState::executing;
}
inline void GCodeBuffer::SetFinished(bool f)
{
bufferState = (f) ? GCodeBufferState::idle : GCodeBufferState::executing;
}
inline const char* GCodeBuffer::WritingFileDirectory() const
{
return writingFileDirectory;
}
inline void GCodeBuffer::SetWritingFileDirectory(const char* wfd)
{
writingFileDirectory = wfd;
}
inline GCodeState GCodeBuffer::GetState() const
{
return machineState->state;
}
inline void GCodeBuffer::SetState(GCodeState newState)
{
machineState->state = newState;
}
inline void GCodeBuffer::AdvanceState()
{
machineState->state = static_cast<GCodeState>(static_cast<uint8_t>(machineState->state) + 1);
}
#endif /* GCODEBUFFER_H_ */
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