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add Buffer functions to enter/exit/query insert mode

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This commit is contained in:
Josh Holtrop 2016-12-24 15:31:23 -05:00
parent 1a34b8d7f7
commit 099ea267d6
2 changed files with 21 additions and 0 deletions
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15
src/core/Buffer.cc
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@ -146,3 +146,18 @@ bool Buffer::write_to_file(const char * filename)
return true;
}
void Buffer::enter_insert_mode(const Buffer::Iterator & position)
{
m_insert_position = position.offset();
if (m_insert_position > m_gap_buffer->size())
{
m_insert_position = 0;
}
m_insert_mode = true;
}
void Buffer::exit_insert_mode()
{
m_insert_mode = false;
}

6
src/core/Buffer.h
View File

@ -78,6 +78,7 @@ public:
return m_offset >= other.m_offset;
}
size_t line() const { return m_line; }
size_t offset() const { return m_offset; }
protected:
Buffer * m_buffer;
@ -99,6 +100,9 @@ public:
uint8_t * address(size_t offset) const { return m_gap_buffer->address(offset); }
Encoding::Type encoding() const { return m_encoding; }
uint8_t tabstop() const { return m_tabstop; }
void enter_insert_mode(const Buffer::Iterator & position);
void exit_insert_mode();
bool insert_mode() const { return m_insert_mode; }
protected:
bool m_eol_at_eof;
@ -106,6 +110,8 @@ protected:
std::shared_ptr<GapBuffer> m_gap_buffer;
Encoding::Type m_encoding;
uint8_t m_tabstop;
bool m_insert_mode;
size_t m_insert_position;
void common_initialization();
bool load_from_file(const char * filename);