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NCurses: draw a scroll bar

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This commit is contained in:
Maxime Coste 2013-03-19 19:32:39 +01:00
parent 3f467ba451
commit 07a2c2944f
1 changed files with 11 additions and 3 deletions
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14
src/ncurses.cc
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@ -325,10 +325,14 @@ void NCursesUI::draw_menu()
auto menu_fg = get_color_pair({ Color::Blue, Color::Cyan }); auto menu_fg = get_color_pair({ Color::Blue, Color::Cyan });
auto menu_bg = get_color_pair({ Color::Cyan, Color::Blue }); auto menu_bg = get_color_pair({ Color::Cyan, Color::Blue });
auto scroll_fg = get_color_pair({ Color::White, Color::White });
auto scroll_bg = get_color_pair({ Color::White, Color::Blue });
wattron(m_menu_win, COLOR_PAIR(menu_bg)); wattron(m_menu_win, COLOR_PAIR(menu_bg));
wbkgdset(m_menu_win, COLOR_PAIR(menu_bg)); wbkgdset(m_menu_win, COLOR_PAIR(menu_bg));
DisplayCoord menu_size = window_size(m_menu_win); DisplayCoord menu_size = window_size(m_menu_win);
CharCount column_width = menu_size.column / m_menu_columns; CharCount column_width = (menu_size.column - 1) / m_menu_columns;
LineCount mark_line = (menu_size.line * m_selected_choice) / (int)m_choices.size();
for (auto line = 0_line; line < menu_size.line; ++line) for (auto line = 0_line; line < menu_size.line; ++line)
{ {
wmove(m_menu_win, (int)line, 0); wmove(m_menu_win, (int)line, 0);
@ -349,6 +353,10 @@ void NCursesUI::draw_menu()
wattron(m_menu_win, COLOR_PAIR(menu_bg)); wattron(m_menu_win, COLOR_PAIR(menu_bg));
} }
wclrtoeol(m_menu_win); wclrtoeol(m_menu_win);
wmove(m_menu_win, (int)line, (int)menu_size.column - 1);
wattron(m_menu_win, COLOR_PAIR(line == mark_line ? scroll_fg : scroll_bg));
waddch(m_menu_win, ' ');
wattron(m_menu_win, COLOR_PAIR(menu_bg));
} }
redraw(); redraw();
} }
@ -366,12 +374,12 @@ void NCursesUI::menu_show(const memoryview<String>& choices,
CharCount longest = 0; CharCount longest = 0;
for (auto& choice : choices) for (auto& choice : choices)
{ {
m_choices.push_back(choice.substr(0_char, std::min((int)maxsize.column-1, 200))); m_choices.push_back(choice.substr(0_char, std::min((int)maxsize.column-2, 200)));
longest = std::max(longest, m_choices.back().char_length()); longest = std::max(longest, m_choices.back().char_length());
} }
longest += 1; longest += 1;
m_menu_columns = (style == MenuStyle::Prompt) ? (int)(maxsize.column / longest) : 1; m_menu_columns = (style == MenuStyle::Prompt) ? (int)((maxsize.column -1) / longest) : 1;
int lines = std::min(10, (int)ceilf((float)m_choices.size()/m_menu_columns)); int lines = std::min(10, (int)ceilf((float)m_choices.size()/m_menu_columns));
DisplayCoord pos = { anchor.line+1, anchor.column }; DisplayCoord pos = { anchor.line+1, anchor.column };