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NCurses: info window tries to avoid the menu one

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This commit is contained in:
Maxime Coste 2012-12-15 19:10:59 +01:00
parent fd09e8a2de
commit df14427210
1 changed files with 29 additions and 2 deletions
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31
src/ncurses.cc
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@ -148,6 +148,13 @@ static DisplayCoord window_size(WINDOW* win)
return size;
}
static DisplayCoord window_pos(WINDOW* win)
{
DisplayCoord pos;
getbegyx(win, (int&)pos.line, (int&)pos.column);
return pos;
}
void NCursesUI::update_dimensions()
{
m_dimensions = window_size(stdscr);
@ -400,12 +407,32 @@ static DisplayCoord compute_needed_size(const String& str)
}
static DisplayCoord compute_pos(const DisplayCoord& anchor,
const DisplayCoord& size)
const DisplayCoord& size,
WINDOW* opt_window_to_avoid = nullptr)
{
DisplayCoord scrsize = window_size(stdscr);
DisplayCoord pos = { anchor.line+1, anchor.column };
if (pos.line + size.line >= scrsize.line)
pos.line = anchor.line - size.line;
if (opt_window_to_avoid)
{
DisplayCoord winbeg = window_pos(opt_window_to_avoid);
DisplayCoord winend = winbeg + window_size(opt_window_to_avoid);
DisplayCoord end = pos + size;
// check intersection
if (not (end.line < winbeg.line or end.column < winbeg.column or
pos.line > winend.line or pos.column > winend.column))
{
pos.line = std::min(winbeg.line, anchor.line) - size.line;
// if above does not work, try below
if (pos.line < 0)
pos.line = std::max(winend.line, anchor.line);
}
}
return pos;
}
@ -417,7 +444,7 @@ void NCursesUI::info_show(const String& content, const DisplayCoord& anchor, Men
if (style == MenuStyle::Prompt)
size.column = window_size(stdscr).column - anchor.column;
DisplayCoord pos = compute_pos(anchor, size);
DisplayCoord pos = compute_pos(anchor, size, m_menu_win);
m_info_win = newwin((int)size.line, (int)size.column,
(int)pos.line, (int)pos.column);