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make display buffers and highlighters handle better longer than display lines

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still work in progress, I think the whole display system will in fact need
a rewrite.
This commit is contained in:
Maxime Coste 2012-07-03 23:23:07 +02:00
parent d092afead9
commit 5cbded8221
4 changed files with 66 additions and 43 deletions
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22
src/display_buffer.cc
View File

@ -95,10 +95,20 @@ DisplayBuffer::DisplayBuffer()
{
}
DisplayBuffer::iterator DisplayBuffer::insert(iterator where, const DisplayAtom& atom)
DisplayBuffer::iterator DisplayBuffer::append(BufferIterator begin, BufferIterator end)
{
iterator res = m_atoms.insert(where, atom);
// check_invariant();
DisplayCoord coord;
if (not m_atoms.empty())
coord = m_atoms.back().end_coord();
m_atoms.push_back(DisplayAtom(std::move(coord), std::move(begin), std::move(end)));
return --(this->end());
}
DisplayBuffer::iterator DisplayBuffer::insert_empty_atom_before(iterator where)
{
assert(where != end());
iterator res = m_atoms.insert(
where, DisplayAtom(where->coord(), where->begin(), where->begin()));
return res;
}
@ -124,6 +134,7 @@ DisplayBuffer::iterator DisplayBuffer::atom_containing(const BufferIterator& whe
DisplayBuffer::iterator DisplayBuffer::split(iterator atom, const BufferIterator& pos)
{
assert(atom->splitable());
assert(pos > atom->begin());
assert(pos < atom->end());
@ -136,7 +147,7 @@ DisplayBuffer::iterator DisplayBuffer::split(iterator atom, const BufferIterator
iterator insert_pos = atom;
++insert_pos;
m_atoms.insert(insert_pos, std::move(new_atom));
// check_invariant();
check_invariant();
return atom;
}
@ -147,7 +158,10 @@ void DisplayBuffer::check_invariant() const
{
assert(it->end() >= it->begin());
if (it != begin())
{
assert(prev_it->end() == it->begin());
assert(prev_it->end_coord() == it->coord());
}
prev_it = it;
}
}

42
src/display_buffer.hh
View File

@ -52,19 +52,6 @@ enum class Color
// text stored in the replacement_string field.
struct DisplayAtom
{
DisplayAtom(const DisplayCoord& coord,
const BufferIterator& begin, const BufferIterator& end,
Color fg_color = Color::Default,
Color bg_color = Color::Default,
Attribute attribute = Attributes::Normal)
: m_content_mode(BufferText),
m_coord(coord),
m_begin(begin), m_end(end),
m_fg_color(fg_color),
m_bg_color(bg_color),
m_attribute(attribute)
{}
const DisplayCoord& coord() const { return m_coord; }
const BufferIterator& begin() const { return m_begin; }
const BufferIterator& end() const { return m_end; }
@ -72,6 +59,12 @@ struct DisplayAtom
const Color& bg_color() const { return m_bg_color; }
const Attribute& attribute() const { return m_attribute; }
enum ContentMode
{
BufferText,
ReplacementText
};
ContentMode content_mode() const { return m_content_mode; }
Color& fg_color() { return m_fg_color; }
Color& bg_color() { return m_bg_color; }
@ -82,16 +75,23 @@ struct DisplayAtom
BufferIterator iterator_at(const DisplayCoord& coord) const;
DisplayCoord line_and_column_at(const BufferIterator& iterator) const;
bool splitable() const { return m_replacement_text.empty(); }
bool splitable() const { return m_content_mode != ReplacementText; }
private:
friend class DisplayBuffer;
DisplayAtom(DisplayCoord coord,
BufferIterator begin, BufferIterator end,
Color fg_color = Color::Default,
Color bg_color = Color::Default,
Attribute attribute = Attributes::Normal)
: m_content_mode(BufferText),
m_coord(std::move(coord)),
m_begin(std::move(begin)), m_end(std::move(end)),
m_fg_color(fg_color),
m_bg_color(bg_color),
m_attribute(attribute)
{}
enum ContentMode
{
BufferText,
ReplacementText
};
ContentMode m_content_mode;
DisplayCoord m_coord;
@ -117,8 +117,8 @@ public:
DisplayBuffer();
void clear() { m_atoms.clear(); }
void append(const DisplayAtom& atom) { m_atoms.push_back(atom); }
iterator insert(iterator where, const DisplayAtom& atom);
iterator append(BufferIterator begin, BufferIterator end);
iterator insert_empty_atom_before(iterator where);
iterator split(iterator atom, const BufferIterator& pos);
void replace_atom_content(iterator atom, const String& replacement);

21
src/highlighters.cc
View File

@ -43,15 +43,18 @@ void colorize_regex_range(DisplayBuffer& display_buffer,
auto begin_atom_it = display_buffer.atom_containing(begin, atom_it);
assert(begin_atom_it != display_buffer.end());
if (begin_atom_it->begin() != begin)
{
if (begin_atom_it->splitable())
begin_atom_it = ++display_buffer.split(begin_atom_it, begin);
else
++begin_atom_it;
}
auto end_atom_it = display_buffer.atom_containing(end, begin_atom_it);
if (end_atom_it != display_buffer.end() and
end_atom_it->begin() != end)
end_atom_it->begin() != end and end_atom_it->splitable())
end_atom_it = ++display_buffer.split(end_atom_it, end);
assert(begin_atom_it != end_atom_it);
for (auto it = begin_atom_it; it != end_atom_it; ++it)
{
if (it->attribute() & Attributes::Final)
@ -169,12 +172,10 @@ void show_line_numbers(DisplayBuffer& display_buffer)
atom_it = ++display_buffer.split(atom_it, line_start);
}
atom_it = display_buffer.insert(
atom_it,
DisplayAtom(atom_it->coord(),
atom_it->begin(), atom_it->begin(),
Color::Black, Color::White,
Attributes::Final));
atom_it = display_buffer.insert_empty_atom_before(atom_it);
atom_it->fg_color() = Color::Black;
atom_it->bg_color() = Color::White;
atom_it->attribute() = Attributes::Final;
char buffer[10];
snprintf(buffer, 10, format, coord.line + 1);
@ -257,7 +258,7 @@ void highlight_selections(Window& window, DisplayBuffer& display_buffer)
const BufferIterator& last = sel.last();
DisplayBuffer::iterator atom_it = display_buffer.atom_containing(last);
if (atom_it == display_buffer.end())
if (atom_it == display_buffer.end() or not atom_it->splitable())
continue;
if (atom_it->begin() < last)

22
src/window.cc
View File

@ -83,13 +83,22 @@ void Window::update_display_buffer()
m_display_buffer.clear();
BufferIterator begin = buffer().iterator_at(m_position);
BufferIterator end = buffer().iterator_at(m_position +
BufferCoord(m_dimensions.line, m_dimensions.column))+2;
if (begin == end)
return;
for (auto line = 0; line < m_dimensions.line; ++line)
{
auto buffer_line = m_position.line + line;
if (buffer_line >= buffer().line_count())
break;
BufferIterator pos = buffer().iterator_at({ buffer_line, m_position.column });
BufferIterator line_begin = buffer().iterator_at_line_begin(pos);
BufferIterator line_end = buffer().iterator_at_line_end(pos);
m_display_buffer.append(DisplayAtom(DisplayCoord(0,0), begin, end));
if (line_begin != pos)
{
auto atom_it = m_display_buffer.append(line_begin, pos);
m_display_buffer.replace_atom_content(atom_it, "");
}
m_display_buffer.append(pos, line_end);
}
m_highlighters(m_display_buffer);
m_display_buffer.check_invariant();
@ -141,5 +150,4 @@ void Window::on_option_changed(const String& name, const Option& option)
m_hook_manager.run_hook("WinSetOption", desc, Context(*this));
}
}