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Prompt handles scrolling in the line being edited

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This commit is contained in:
Maxime Coste 2014-01-30 11:30:51 +00:00
parent 209a4a3ddf
commit d2a1c5ce46
1 changed files with 22 additions and 10 deletions
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30
src/input_handler.cc
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@ -165,19 +165,25 @@ public:
const String& line() const { return m_line; } const String& line() const { return m_line; }
CharCount cursor_pos() const { return m_cursor_pos; } CharCount cursor_pos() const { return m_cursor_pos; }
DisplayLine build_display_line() const DisplayLine build_display_line(CharCount width)
{ {
kak_assert(m_cursor_pos <= m_line.char_length()); kak_assert(m_cursor_pos <= m_line.char_length());
if (m_cursor_pos < m_display_pos)
m_display_pos = m_cursor_pos;
if (m_cursor_pos >= m_display_pos + width)
m_display_pos = m_cursor_pos + 1 - width;
if (m_cursor_pos == m_line.char_length()) if (m_cursor_pos == m_line.char_length())
return DisplayLine{{ {m_line, get_color("StatusLine")}, return DisplayLine{{ {m_line.substr(m_display_pos, width-1), get_color("StatusLine")},
{" "_str, get_color("StatusCursor")} }}; {" "_str, get_color("StatusCursor")} }};
else else
return DisplayLine({ { m_line.substr(0, m_cursor_pos), get_color("StatusLine") }, return DisplayLine({ { m_line.substr(m_display_pos, m_cursor_pos - m_display_pos), get_color("StatusLine") },
{ m_line.substr(m_cursor_pos,1), get_color("StatusCursor") }, { m_line.substr(m_cursor_pos,1), get_color("StatusCursor") },
{ m_line.substr(m_cursor_pos+1), get_color("StatusLine") } }); { m_line.substr(m_cursor_pos+1, width - m_cursor_pos + m_display_pos - 1), get_color("StatusLine") } });
} }
private: private:
CharCount m_cursor_pos = 0; CharCount m_cursor_pos = 0;
CharCount m_display_pos = 0;
String m_line; String m_line;
}; };
@ -265,10 +271,12 @@ public:
select(it); select(it);
} }
if (m_edit_filter) if (m_edit_filter and context().has_ui())
{ {
auto display_line = m_filter_editor.build_display_line(); auto prompt = "filter:"_str;
display_line.insert(display_line.begin(), { "filter:"_str, get_color("Prompt") }); auto width = context().ui().dimensions().column - prompt.char_length();
auto display_line = m_filter_editor.build_display_line(width);
display_line.insert(display_line.begin(), { prompt, get_color("Prompt") });
context().print_status(display_line); context().print_status(display_line);
} }
} }
@ -535,9 +543,13 @@ private:
context().ui().menu_hide(); context().ui().menu_hide();
} }
void display() const void display()
{ {
auto display_line = m_line_editor.build_display_line(); if (not context().has_ui())
return;
auto width = context().ui().dimensions().column - m_prompt.char_length();
auto display_line = m_line_editor.build_display_line(width);
display_line.insert(display_line.begin(), { m_prompt, m_prompt_colors }); display_line.insert(display_line.begin(), { m_prompt, m_prompt_colors });
context().print_status(display_line); context().print_status(display_line);
} }