Make scrolling speed configurable
The UI now can send a 'Scroll' key, whose value is the scrolling amount encoded as a signed integer. This replaces the MouseWheelUp and MouseWheelDown keys. The NCursesUI now has a ncurses_wheel_scroll_amount ui_option that controls that amount, it can be negative to swap scrolling direction. Fixes #3045
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f1047181cb
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2359df0f17
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@ -92,8 +92,7 @@ struct MouseHandler
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Buffer& buffer = context.buffer();
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BufferCoord cursor;
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auto& selections = context.selections();
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const auto key_modifier = (Key::Modifiers)(key.modifiers & Key::Modifiers::MouseEvent);
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switch (key_modifier)
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switch (key.modifiers)
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{
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case Key::Modifiers::MousePressRight:
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m_dragging = false;
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@ -137,14 +136,9 @@ struct MouseHandler
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selections.sort_and_merge_overlapping();
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return true;
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case Key::Modifiers::MouseWheelDown:
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case Key::Modifiers::Scroll:
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m_dragging = false;
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scroll_window(context, 3);
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return true;
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case Key::Modifiers::MouseWheelUp:
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m_dragging = false;
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scroll_window(context, -3);
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scroll_window(context, static_cast<int32_t>(key.key));
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return true;
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default: return false;
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@ -232,16 +226,6 @@ public:
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kak_assert(m_state != State::PopOnEnabled);
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ScopedSetBool set_in_on_key{m_in_on_key};
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// Hack to parse keys sent by terminals using the 8th bit to mark the
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// meta key. In normal mode, give priority to a potential alt-key than
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// the accentuated character.
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if (not (key.modifiers & Key::Modifiers::MouseEvent) and
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key.key >= 127 and key.key < 256)
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{
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key.modifiers |= Key::Modifiers::Alt;
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key.key &= 0x7f;
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}
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bool do_restore_hooks = false;
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auto restore_hooks = on_scope_end([&, this]{
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if (m_hooks_disabled and enabled() and do_restore_hooks)
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@ -253,8 +237,6 @@ public:
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const bool transient = context().flags() & Context::Flags::Draft;
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auto cp = key.codepoint();
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if (m_mouse_handler.handle_key(key, context()))
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{
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context().print_status({});
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@ -264,7 +246,7 @@ public:
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if (not transient)
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m_idle_timer.set_next_date(Clock::now() + get_idle_timeout(context()));
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}
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else if (cp and isdigit(*cp))
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else if (auto cp = key.codepoint(); cp and isdigit(*cp))
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{
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long long new_val = (long long)m_params.count * 10 + *cp - '0';
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if (new_val > std::numeric_limits<int>::max())
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@ -310,6 +292,15 @@ public:
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if (context().has_client())
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context().client().info_hide();
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// Hack to parse keys sent by terminals using the 8th bit to mark the
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// meta key. In normal mode, give priority to a potential alt-key than
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// the accentuated character.
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if (key.key >= 127 and key.key < 256)
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{
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key.modifiers |= Key::Modifiers::Alt;
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key.key &= 0x7f;
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}
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do_restore_hooks = true;
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if (auto command = get_normal_command(key))
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{
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@ -430,13 +430,18 @@ void JsonUI::eval_json(const Value& json)
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m_on_key({Key::Modifiers::MouseReleaseLeft, coord});
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else if (type == "release_right")
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m_on_key({Key::Modifiers::MouseReleaseRight, coord});
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else if (type == "wheel_up")
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m_on_key({Key::Modifiers::MouseWheelUp, coord});
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else if (type == "wheel_down")
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m_on_key({Key::Modifiers::MouseWheelDown, coord});
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else
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throw invalid_rpc_request(format("invalid mouse event type: {}", type));
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}
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else if (method == "scroll")
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{
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if (params.size() != 1)
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throw invalid_rpc_request("scroll needs an amount");
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else if (not params[0].is_a<int>())
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throw invalid_rpc_request("scroll amount is not an integer");
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m_on_key({Key::Modifiers::Scroll, (Codepoint)params[0].as<int>()});
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}
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else if (method == "menu_select")
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{
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if (params.size() != 1)
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42
src/keys.cc
42
src/keys.cc
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@ -146,32 +146,24 @@ KeyList parse_keys(StringView str)
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String key_to_str(Key key)
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{
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if (auto mouse_event = (key.modifiers & Key::Modifiers::MouseEvent))
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const auto coord = key.coord() + DisplayCoord{1,1};
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switch (key.modifiers)
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{
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const auto coord = key.coord() + DisplayCoord{1,1};
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switch ((Key::Modifiers)mouse_event)
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{
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case Key::Modifiers::MousePos:
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return format("<mouse:move:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MousePressLeft:
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return format("<mouse:press_left:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MousePressRight:
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return format("<mouse:press_right:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MouseReleaseLeft:
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return format("<mouse:release_left:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MouseReleaseRight:
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return format("<mouse:release_right:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MouseWheelDown:
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return "<mouse:wheel_down>";
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case Key::Modifiers::MouseWheelUp:
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return "<mouse:wheel_up>";
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default: kak_assert(false);
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}
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}
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else if (key.modifiers == Key::Modifiers::Resize)
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{
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auto size = key.coord() + DisplayCoord{1,1};
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return format("<resize:{}.{}>", size.line, size.column);
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case Key::Modifiers::MousePos:
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return format("<mouse:move:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MousePressLeft:
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return format("<mouse:press_left:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MousePressRight:
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return format("<mouse:press_right:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MouseReleaseLeft:
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return format("<mouse:release_left:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::MouseReleaseRight:
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return format("<mouse:release_right:{}.{}>", coord.line, coord.column);
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case Key::Modifiers::Scroll:
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return format("<scroll:{}>", static_cast<int>(key.key));
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case Key::Modifiers::Resize:
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return format("<resize:{}.{}>", coord.line, coord.column);
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default: break;
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}
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bool named = false;
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11
src/keys.hh
11
src/keys.hh
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@ -26,14 +26,9 @@ struct Key
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MouseReleaseLeft = 1 << 5,
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MouseReleaseRight = 1 << 6,
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MousePos = 1 << 7,
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MouseWheelDown = 1 << 8,
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MouseWheelUp = 1 << 9,
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MouseEvent = MousePressLeft | MousePressRight |
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MouseReleaseLeft | MouseReleaseRight |
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MousePos | MouseWheelDown | MouseWheelUp,
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Resize = 1 << 10,
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MenuSelect = 1 << 11,
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Scroll = 1 << 8,
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Resize = 1 << 9,
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MenuSelect = 1 << 10,
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};
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enum NamedKey : Codepoint
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{
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@ -437,6 +437,7 @@ void register_options()
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" ncurses_change_colors bool\n"
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" ncurses_wheel_up_button int\n"
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" ncurses_wheel_down_button int\n"
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" ncurses_wheel_scroll_amount int\n"
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" ncurses_shift_function_key int\n"
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" ncurses_builtin_key_parser bool\n",
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UserInterface::Options{});
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@ -556,31 +556,28 @@ Optional<Key> NCursesUI::get_next_key()
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MEVENT ev;
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if (getmouse(&ev) == OK)
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{
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auto get_modifiers = [this](mmask_t mask) {
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Key::Modifiers res{};
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const auto mask = ev.bstate;
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auto coord = encode_coord({ ev.y - content_line_offset(), ev.x });
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if (mask & BUTTON_CTRL)
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res |= Key::Modifiers::Control;
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if (mask & BUTTON_ALT)
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res |= Key::Modifiers::Alt;
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Key::Modifiers mod{};
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if (mask & BUTTON_CTRL)
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mod |= Key::Modifiers::Control;
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if (mask & BUTTON_ALT)
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mod |= Key::Modifiers::Alt;
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if (BUTTON_PRESS(mask, 1))
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return res | Key::Modifiers::MousePressLeft;
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if (BUTTON_PRESS(mask, 3))
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return res | Key::Modifiers::MousePressRight;
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if (BUTTON_RELEASE(mask, 1))
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return res | Key::Modifiers::MouseReleaseLeft;
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if (BUTTON_RELEASE(mask, 3))
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return res | Key::Modifiers::MouseReleaseRight;
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if (BUTTON_PRESS(mask, m_wheel_down_button))
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return res | Key::Modifiers::MouseWheelDown;
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if (BUTTON_PRESS(mask, m_wheel_up_button))
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return res | Key::Modifiers::MouseWheelUp;
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return res | Key::Modifiers::MousePos;
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};
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return Key{ get_modifiers(ev.bstate),
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encode_coord({ ev.y - content_line_offset(), ev.x }) };
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if (BUTTON_PRESS(mask, 1))
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return Key{mod | Key::Modifiers::MousePressLeft, coord};
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if (BUTTON_PRESS(mask, 3))
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return Key{mod | Key::Modifiers::MousePressRight, coord};
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if (BUTTON_RELEASE(mask, 1))
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return Key{mod | Key::Modifiers::MouseReleaseLeft, coord};
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if (BUTTON_RELEASE(mask, 3))
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return Key{mod | Key::Modifiers::MouseReleaseRight, coord};
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if (BUTTON_PRESS(mask, m_wheel_down_button))
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return Key{mod | Key::Modifiers::Scroll, static_cast<Codepoint>(m_wheel_scroll_amount)};
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if (BUTTON_PRESS(mask, m_wheel_up_button))
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return Key{mod | Key::Modifiers::Scroll, static_cast<Codepoint>(-m_wheel_scroll_amount)};
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return Key{mod | Key::Modifiers::MousePos, coord};
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}
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}
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@ -1278,6 +1275,10 @@ void NCursesUI::set_ui_options(const Options& options)
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auto wheel_down_it = options.find("ncurses_wheel_down_button"_sv);
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m_wheel_down_button = wheel_down_it != options.end() ?
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str_to_int_ifp(wheel_down_it->value).value_or(5) : 5;
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auto wheel_scroll_amount_it = options.find("ncurses_wheel_scroll_amount"_sv);
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m_wheel_scroll_amount = wheel_scroll_amount_it != options.end() ?
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str_to_int_ifp(wheel_scroll_amount_it->value).value_or(3) : 3;
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}
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{
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@ -140,6 +140,7 @@ private:
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bool m_mouse_enabled = false;
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int m_wheel_up_button = 4;
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int m_wheel_down_button = 5;
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int m_wheel_scroll_amount = 3;
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static constexpr int default_shift_function_key = 12;
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int m_shift_function_key = default_shift_function_key;
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