// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Aaron Giles, Nathan Woods, Vas Crabb
/*********************************************************************
ui/analogipt.cpp
Analog inputs menu.
*********************************************************************/
#include "emu.h"
#include "ui/analogipt.h"
#include "ui/textbox.h"
#include "uiinput.h"
#include <algorithm>
#include <iterator>
#include <string>
#include <utility>
namespace ui {
namespace {
char const HELP_TEXT[] = N_p("menu-analoginput",
"Show/hide settings \t\t%1$s\n"
"Decrease value \t\t%2$s\n"
"Increase value \t\t%3$s\n"
"Restore default value \t\t%4$s\n"
"Previous device \t\t%5$s\n"
"Next device \t\t%6$s\n"
"Return to previous menu \t\t%7$s");
} // anonymous namespace
inline menu_analog::item_data::item_data(ioport_field &f, int t) noexcept
: field(f)
, type(t)
, defvalue(
(ANALOG_ITEM_KEYSPEED == t) ? f.delta() :
(ANALOG_ITEM_CENTERSPEED == t) ? f.centerdelta() :
(ANALOG_ITEM_REVERSE == t) ? f.analog_reverse() :
(ANALOG_ITEM_SENSITIVITY == t) ? f.sensitivity() :
-1)
, min((ANALOG_ITEM_SENSITIVITY == t) ? 1 : 0)
, max((ANALOG_ITEM_REVERSE == t) ? 1 : std::max(defvalue * 4, 255))
, cur(-1)
{
}
inline menu_analog::field_data::field_data(ioport_field &f) noexcept
: field(f)
, range(0.0F)
, neutral(0.0F)
, origin(0.0F)
, shift(0U)
, show_neutral((f.defvalue() != f.minval()) && (f.defvalue() != f.maxval()))
{
for (ioport_value m = f.mask(); m && !BIT(m, 0); m >>= 1, ++shift) { }
ioport_value const m(f.mask() >> shift);
range = (f.maxval() - f.minval()) & m;
ioport_value const n((f.analog_reverse() ? (f.maxval() - f.defvalue()) : (f.defvalue() - f.minval())) & m);
neutral = float(n) / range;
if (!f.analog_wraps() || (f.defvalue() == f.minval()) || (f.defvalue() == f.maxval()))
origin = neutral;
}
menu_analog::menu_analog(mame_ui_manager &mui, render_container &container)
: menu(mui, container)
, m_item_data()
, m_field_data()
, m_prompt()
, m_bottom_fields(0U)
, m_visible_fields(0)
, m_top_field(0)
, m_hide_menu(false)
, m_box_left(1.0F)
, m_box_top(1.0F)
, m_box_right(0.0F)
, m_box_bottom(0.0F)
, m_pointer_action(pointer_action::NONE)
, m_scroll_repeat(std::chrono::steady_clock::time_point::min())
, m_base_pointer(0.0F, 0.0F)
, m_last_pointer(0.0F, 0.0F)
, m_scroll_base(0)
, m_arrow_clicked_first(false)
{
set_process_flags(PROCESS_LR_REPEAT);
set_heading(_("menu-analoginput", "Analog Input Adjustments"));
}
menu_analog::~menu_analog()
{
}
void menu_analog::recompute_metrics(uint32_t width, uint32_t height, float aspect)
{
menu::recompute_metrics(width, height, aspect);
m_box_left = m_box_top = 1.0F;
m_box_right = m_box_bottom = 0.0F;
// space for live display
set_custom_space(0.0F, (line_height() * m_bottom_fields) + (tb_border() * 3.0F));
}
void menu_analog::custom_render(uint32_t flags, void *selectedref, float top, float bottom, float x, float y, float x2, float y2)
{
// work out how much space to use for field names
float const extrawidth(0.4F + (((ui().box_lr_border() * 2.0F) + ui().get_line_height()) * x_aspect()));
float const nameavail(1.0F - (lr_border() * 2.0F) - extrawidth);
float namewidth(0.0F);
for (field_data &data : m_field_data)
namewidth = (std::min)((std::max)(get_string_width(data.field.get().name()), namewidth), nameavail);
// make a box or two
rgb_t const fgcolor(ui().colors().text_color());
m_box_left = (1.0F - namewidth - extrawidth) * 0.5F;
m_box_right = m_box_left + namewidth + extrawidth;
float firstliney;
if (m_hide_menu)
{
if (m_prompt.empty())
m_prompt = util::string_format(_("menu-analoginput", "Press %s to show settings"), ui().get_general_input_setting(IPT_UI_ON_SCREEN_DISPLAY));
draw_text_box(
&m_prompt, &m_prompt + 1,
m_box_left, m_box_right, y - top, y - top + line_height() + (tb_border() * 2.0F),
text_layout::text_justify::CENTER, text_layout::word_wrapping::TRUNCATE, false,
fgcolor, ui().colors().background_color());
m_box_top = y - top + line_height() + (tb_border() * 3.0F);
firstliney = y - top + line_height() + (tb_border() * 4.0F);
m_visible_fields = std::min<int>(m_field_data.size(), int((y2 + bottom - tb_border() - firstliney) / line_height()));
m_box_bottom = firstliney + (line_height() * m_visible_fields) + tb_border();
}
else
{
m_box_top = y2 + tb_border();
m_box_bottom = y2 + bottom;
firstliney = y2 + (tb_border() * 2.0F);
m_visible_fields = m_bottom_fields;
}
ui().draw_outlined_box(container(), m_box_left, m_box_top, m_box_right, m_box_bottom, ui().colors().background_color());
// force the field being configured to be visible
ioport_field *const selfield(selectedref ? &reinterpret_cast<item_data *>(selectedref)->field.get() : nullptr);
if (!m_hide_menu && selfield)
{
auto const found(
std::find_if(
m_field_data.begin(),
m_field_data.end(),
[selfield] (field_data const &d) { return &d.field.get() == selfield; }));
if (m_field_data.end() != found)
{
auto const i(std::distance(m_field_data.begin(), found));
if (m_top_field > i)
m_top_field = i;
if ((m_top_field + m_visible_fields) <= i)
m_top_field = i - m_bottom_fields + 1;
}
}
if (0 > m_top_field)
m_top_field = 0;
if ((m_top_field + m_visible_fields) > m_field_data.size())
m_top_field = m_field_data.size() - m_visible_fields;
// show live fields
namewidth += line_height() * x_aspect();
float const nameleft(m_box_left + lr_border());
float const indleft(nameleft + namewidth);
float const indright(indleft + 0.4F);
for (unsigned line = 0; m_visible_fields > line; ++line)
{
// draw arrows if scrolling is possible and menu is hidden
float const liney(firstliney + (line_height() * float(line)));
if (m_hide_menu)
{
bool const uparrow(!line && m_top_field);
bool const downarrow(((m_visible_fields - 1) == line) && ((m_field_data.size() - 1) > (line + m_top_field)));
if (uparrow || downarrow)
{
bool const active((uparrow && (pointer_action::SCROLL_UP == m_pointer_action)) || (downarrow && (pointer_action::SCROLL_DOWN == m_pointer_action)));
bool const hovered((active || pointer_idle()) && pointer_in_rect(nameleft, liney, indright, liney + line_height()));
float const arrowwidth(line_height() * x_aspect());
rgb_t const arrowcolor(!(active || hovered) ? fgcolor : (active && hovered) ? ui().colors().selected_color() : ui().colors().mouseover_color());
if (active || hovered)
{
highlight(
nameleft, liney, indright, liney + line_height(),
(active && hovered) ? ui().colors().selected_bg_color() : ui().colors().mouseover_bg_color());
}
draw_arrow(
0.5F * (nameleft + indright - arrowwidth), liney + (0.25F * line_height()),
0.5F * (nameleft + indright + arrowwidth), liney + (0.75F * line_height()),
arrowcolor, line ? (ROT0 ^ ORIENTATION_FLIP_Y) : ROT0);
continue;
}
}
// draw the field name, using the selected colour if it's being configured
field_data &data(m_field_data[line + m_top_field]);
bool const selected(&data.field.get() == selfield);
rgb_t const fieldcolor(selected ? ui().colors().selected_color() : fgcolor);
draw_text_normal(
data.field.get().name(),
nameleft, liney, namewidth,
text_layout::text_justify::LEFT, text_layout::word_wrapping::NEVER,
fieldcolor);
ioport_value cur(0U);
data.field.get().live().analog->read(cur);
cur = ((cur >> data.shift) - data.field.get().minval()) & (data.field.get().mask() >> data.shift);
float fill(float(cur) / data.range);
if (data.field.get().analog_reverse())
fill = 1.0F - fill;
float const indtop(liney + (line_height() * 0.2F));
float const indbottom(liney + (line_height() * 0.8F));
if (data.origin > fill)
container().add_rect(indleft + (fill * 0.4F), indtop, indleft + (data.origin * 0.4F), indbottom, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
else
container().add_rect(indleft + (data.origin * 0.4F), indtop, indleft + (fill * 0.4F), indbottom, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container().add_line(indleft, indtop, indright, indtop, UI_LINE_WIDTH, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container().add_line(indright, indtop, indright, indbottom, UI_LINE_WIDTH, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container().add_line(indright, indbottom, indleft, indbottom, UI_LINE_WIDTH, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
container().add_line(indleft, indbottom, indleft, indtop, UI_LINE_WIDTH, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
if (data.show_neutral)
container().add_line(indleft + (data.neutral * 0.4F), indtop, indleft + (data.neutral * 0.4F), indbottom, UI_LINE_WIDTH, fgcolor, PRIMFLAG_BLENDMODE(BLENDMODE_ALPHA));
}
}
std::tuple<int, bool, bool> menu_analog::custom_pointer_updated(bool changed, ui_event const &uievt)
{
// no pointer input if we don't have up-to-date content on-screen
if ((m_box_left > m_box_right) || (ui_event::type::POINTER_ABORT == uievt.event_type))
{
m_pointer_action = pointer_action::NONE;
return std::make_tuple(IPT_INVALID, false, false);
}
// if nothing's happening, check for clicks
if (pointer_idle())
{
if ((uievt.pointer_pressed & 0x01) && !(uievt.pointer_buttons & ~u32(0x01)))
{
if (1 == uievt.pointer_clicks)
m_arrow_clicked_first = false;
float const firstliney(m_box_top + tb_border());
float const fieldleft(m_box_left + lr_border());
float const fieldright(m_box_right - lr_border());
auto const [x, y] = pointer_location();
bool const inwidth((x >= fieldleft) && (x < fieldright));
if (m_hide_menu && m_top_field && inwidth && (y >= firstliney) && (y < (firstliney + line_height())))
{
// scroll up arrow
if (1 == uievt.pointer_clicks)
m_arrow_clicked_first = true;
--m_top_field;
m_pointer_action = pointer_action::SCROLL_UP;
m_scroll_repeat = std::chrono::steady_clock::now() + std::chrono::milliseconds(300);
m_last_pointer = std::make_pair(x, y);
return std::make_tuple(IPT_INVALID, true, true);
}
else if (m_hide_menu && ((m_top_field + m_visible_fields) < m_field_data.size()) && inwidth && (y >= (firstliney + (float(m_visible_fields - 1) * line_height()))) && (y < (firstliney + (float(m_visible_fields) * line_height()))))
{
// scroll down arrow
if (1 == uievt.pointer_clicks)
m_arrow_clicked_first = true;
++m_top_field;
m_pointer_action = pointer_action::SCROLL_DOWN;
m_scroll_repeat = std::chrono::steady_clock::now() + std::chrono::milliseconds(300);
m_last_pointer = std::make_pair(x, y);
return std::make_tuple(IPT_INVALID, true, true);
}
else if ((x >= m_box_left) && (x < m_box_right) && (y >= m_box_top) && (y < m_box_bottom))
{
if (!m_arrow_clicked_first && (2 == uievt.pointer_clicks))
{
// toggle menu display
// FIXME: this should really use the start point of the multi-click action
m_pointer_action = pointer_action::CHECK_TOGGLE_MENU;
m_base_pointer = std::make_pair(x, y);
return std::make_tuple(IPT_INVALID, true, false);
}
else if (ui_event::pointer::TOUCH == uievt.pointer_type)
{
m_pointer_action = pointer_action::SCROLL_DRAG;
m_base_pointer = std::make_pair(x, y);
m_last_pointer = m_base_pointer;
m_scroll_base = m_top_field;
return std::make_tuple(IPT_INVALID, true, false);
}
}
}
return std::make_tuple(IPT_INVALID, false, false);
}
// handle in-progress actions
switch (m_pointer_action)
{
case pointer_action::NONE:
break;
case pointer_action::SCROLL_UP:
case pointer_action::SCROLL_DOWN:
{
// check for re-entry
bool redraw(false);
float const linetop(m_box_top + tb_border() + ((pointer_action::SCROLL_DOWN == m_pointer_action) ? (float(m_visible_fields - 1) * line_height()) : 0.0F));
float const linebottom(linetop + line_height());
auto const [x, y] = pointer_location();
bool const reentered(reentered_rect(m_last_pointer.first, m_last_pointer.second, x, y, m_box_left + lr_border(), linetop, m_box_right - lr_border(), linebottom));
if (reentered)
{
auto const now(std::chrono::steady_clock::now());
if (scroll_if_expired(now))
{
redraw = true;
m_scroll_repeat = now + std::chrono::milliseconds(100);
}
}
m_last_pointer = std::make_pair(x, y);
if ((uievt.pointer_released & 0x01) || (uievt.pointer_pressed & ~u32(0x01)))
m_pointer_action = pointer_action::NONE;
return std::make_tuple(IPT_INVALID, pointer_action::NONE != m_pointer_action, redraw);
}
break;
case pointer_action::SCROLL_DRAG:
{
bool const scrolled(update_scroll_drag(uievt));
return std::make_tuple(IPT_INVALID, pointer_action::NONE != m_pointer_action, scrolled);
}
case pointer_action::CHECK_TOGGLE_MENU:
if ((ui_event::pointer::TOUCH == uievt.pointer_type) && (0 > uievt.pointer_clicks))
{
// converted to hold/drag - treat as scroll if it's touch
m_pointer_action = pointer_action::SCROLL_DRAG;
m_last_pointer = m_base_pointer;
m_scroll_base = m_top_field;
bool const scrolled(update_scroll_drag(uievt));
return std::make_tuple(IPT_INVALID, pointer_action::NONE != m_pointer_action, scrolled);
}
else if (uievt.pointer_released & 0x01)
{
// primary button released - simulate the on-screen display key if it wasn't converted to a hold/drag
return std::make_tuple((2 == uievt.pointer_clicks) ? IPT_UI_ON_SCREEN_DISPLAY : IPT_INVALID, false, false);
}
else if ((2 != uievt.pointer_clicks) || (uievt.pointer_buttons & ~u32(0x01)))
{
// treat converting to a hold/drag or pressing another button as cancelling the action
return std::make_tuple(IPT_INVALID, false, false);
}
return std::make_tuple(IPT_INVALID, true, false);
}
return std::make_tuple(IPT_INVALID, false, false);
}
void menu_analog::menu_activated()
{
// scripts could have changed something in the mean time
m_item_data.clear();
m_field_data.clear();
reset(reset_options::REMEMBER_POSITION);
m_box_left = m_box_top = 1.0F;
m_box_right = m_box_bottom = 0.0F;
m_pointer_action = pointer_action::NONE;
m_arrow_clicked_first = false;
}
bool menu_analog::handle(event const *ev)
{
// deal with repeating scroll arrows
bool scrolled(false);
if ((pointer_action::SCROLL_UP == m_pointer_action) || (pointer_action::SCROLL_DOWN == m_pointer_action))
{
float const linetop(m_box_top + tb_border() + ((pointer_action::SCROLL_DOWN == m_pointer_action) ? (float(m_visible_fields - 1) * line_height()) : 0.0F));
float const linebottom(linetop + line_height());
if (pointer_in_rect(m_box_left + lr_border(), linetop, m_box_right - lr_border(), linebottom))
{
while (scroll_if_expired(std::chrono::steady_clock::now()))
{
scrolled = true;
m_scroll_repeat += std::chrono::milliseconds(100);
}
}
}
if (!ev)
{
return scrolled;
}
else if (IPT_UI_ON_SCREEN_DISPLAY == ev->iptkey)
{
m_hide_menu = !m_hide_menu;
m_box_left = m_box_top = 1.0F;
m_box_right = m_box_bottom = 0.0F;
m_pointer_action = pointer_action::NONE;
m_arrow_clicked_first = false;
set_process_flags(PROCESS_LR_REPEAT | (m_hide_menu ? (PROCESS_CUSTOM_NAV | PROCESS_CUSTOM_ONLY) : 0));
return true;
}
else if (IPT_UI_HELP == ev->iptkey)
{
stack_push<menu_fixed_textbox>(
ui(),
container(),
_("menu-analoginput", "Analog Input Adjustments Help"),
util::string_format(
_("menu-analoginput", HELP_TEXT),
ui().get_general_input_setting(IPT_UI_ON_SCREEN_DISPLAY),
ui().get_general_input_setting(IPT_UI_LEFT),
ui().get_general_input_setting(IPT_UI_RIGHT),
ui().get_general_input_setting(IPT_UI_CLEAR),
ui().get_general_input_setting(IPT_UI_PREV_GROUP),
ui().get_general_input_setting(IPT_UI_NEXT_GROUP),
ui().get_general_input_setting(IPT_UI_BACK)));
}
else if (m_hide_menu)
{
switch (ev->iptkey)
{
case IPT_UI_UP:
if (m_top_field)
{
--m_top_field;
return true;
}
break;
case IPT_UI_DOWN:
if ((m_top_field + m_visible_fields) < m_field_data.size())
{
++m_top_field;
return true;
}
break;
case IPT_UI_PAGE_UP:
if (m_visible_fields)
{
m_top_field -= std::min<int>(m_visible_fields - 3, m_top_field);
return true;
}
break;
case IPT_UI_PAGE_DOWN:
if ((m_top_field + m_visible_fields) < m_field_data.size())
{
m_top_field = std::min<int>(m_top_field + m_visible_fields - 3, m_field_data.size() - m_visible_fields);
return true;
}
break;
case IPT_UI_HOME:
if (m_top_field)
{
m_top_field = 0;
return true;
}
break;
case IPT_UI_END:
if ((m_top_field + m_visible_fields) < m_field_data.size())
{
m_top_field = m_field_data.size() - m_visible_fields;
return true;
}
break;
}
}
else if (ev->itemref)
{
item_data &data(*reinterpret_cast<item_data *>(ev->itemref));
int newval(data.cur);
switch (ev->iptkey)
{
// flip toggles when selected
case IPT_UI_SELECT:
if (ANALOG_ITEM_REVERSE == data.type)
newval = newval ? 0 : 1;
break;
// if cleared, reset to default value
case IPT_UI_CLEAR:
newval = data.defvalue;
break;
// left decrements
case IPT_UI_LEFT:
newval -= machine().input().code_pressed(KEYCODE_LSHIFT) ? 10 : 1;
break;
// right increments
case IPT_UI_RIGHT:
newval += machine().input().code_pressed(KEYCODE_LSHIFT) ? 10 : 1;
break;
// move to first item for previous device
case IPT_UI_PREV_GROUP:
{
auto current = std::distance(m_item_data.data(), &data);
device_t const *dev(&data.field.get().device());
bool found_break = false;
while (0 < current)
{
if (!found_break)
{
device_t const *prev(&m_item_data[--current].field.get().device());
if (prev != dev)
{
dev = prev;
found_break = true;
}
}
else if (&m_item_data[current - 1].field.get().device() != dev)
{
set_selection(&m_item_data[current]);
set_top_line(selected_index() - 1);
return true;
}
else
{
--current;
}
if (found_break && !current)
{
set_selection(&m_item_data[current]);
set_top_line(selected_index() - 1);
return true;
}
}
}
break;
// move to first item for next device
case IPT_UI_NEXT_GROUP:
{
auto current = std::distance(m_item_data.data(), &data);
device_t const *const dev(&data.field.get().device());
while (m_item_data.size() > ++current)
{
if (&m_item_data[current].field.get().device() != dev)
{
set_selection(&m_item_data[current]);
set_top_line(selected_index() - 1);
return true;
}
}
}
break;
}
// clamp to range
newval = std::clamp(newval, data.min, data.max);
// if things changed, update
if (newval != data.cur)
{
ioport_field::user_settings settings;
// get the settings and set the new value
data.field.get().get_user_settings(settings);
switch (data.type)
{
case ANALOG_ITEM_KEYSPEED: settings.delta = newval; break;
case ANALOG_ITEM_CENTERSPEED: settings.centerdelta = newval; break;
case ANALOG_ITEM_REVERSE: settings.reverse = newval; break;
case ANALOG_ITEM_SENSITIVITY: settings.sensitivity = newval; break;
}
data.field.get().set_user_settings(settings);
data.cur = newval;
// update the menu item
ev->item->set_subtext(item_text(data.type, newval));
ev->item->set_flags((data.cur <= data.min) ? FLAG_RIGHT_ARROW : (data.cur >= data.max) ? FLAG_LEFT_ARROW : FLAG_LEFT_ARROW | FLAG_RIGHT_ARROW);
return true;
}
}
return scrolled;
}
void menu_analog::populate()
{
// loop over input ports
if (m_item_data.empty())
find_fields();
device_t *prev_owner(nullptr);
ioport_field *field(nullptr);
ioport_field::user_settings settings;
// add the items
std::string text;
for (item_data &data : m_item_data)
{
// get the user settings
if (&data.field.get() != field)
{
field = &data.field.get();
field->get_user_settings(settings);
if (&field->device() != prev_owner)
{
prev_owner = &field->device();
if (prev_owner->owner())
item_append(string_format(_("%1$s [root%2$s]"), prev_owner->type().fullname(), prev_owner->tag()), FLAG_UI_HEADING | FLAG_DISABLE, nullptr);
else
item_append(string_format(_("[root%1$s]"), prev_owner->tag()), FLAG_UI_HEADING | FLAG_DISABLE, nullptr);
}
}
// determine the properties of this item
switch (data.type)
{
default:
case ANALOG_ITEM_KEYSPEED:
text = string_format(_("menu-analoginput", "%1$s Increment/Decrement Speed"), field->name());
data.cur = settings.delta;
break;
case ANALOG_ITEM_CENTERSPEED:
text = string_format(_("menu-analoginput", "%1$s Auto-centering Speed"), field->name());
data.cur = settings.centerdelta;
break;
case ANALOG_ITEM_REVERSE:
text = string_format(_("menu-analoginput", "%1$s Reverse"), field->name());
data.cur = settings.reverse;
break;
case ANALOG_ITEM_SENSITIVITY:
text = string_format(_("menu-analoginput", "%1$s Sensitivity"), field->name());
data.cur = settings.sensitivity;
break;
}
// append a menu item
item_append(
std::move(text),
item_text(data.type, data.cur),
(data.cur <= data.min) ? FLAG_RIGHT_ARROW : (data.cur >= data.max) ? FLAG_LEFT_ARROW : FLAG_LEFT_ARROW | FLAG_RIGHT_ARROW,
&data);
}
// display a message if there are toggle inputs enabled
if (!prev_owner)
item_append(_("menu-analoginput", "[no analog inputs are enabled]"), FLAG_DISABLE, nullptr);
item_append(menu_item_type::SEPARATOR);
// space for live display
set_custom_space(0.0F, (line_height() * m_bottom_fields) + (tb_border() * 3.0F));
}
void menu_analog::find_fields()
{
assert(m_field_data.empty());
// collect analog fields
for (auto &port : machine().ioport().ports())
{
for (ioport_field &field : port.second->fields())
{
if (field.is_analog() && field.enabled())
{
// based on the type, determine if we enable autocenter
bool use_autocenter = false;
switch (field.type())
{
case IPT_POSITIONAL:
case IPT_POSITIONAL_V:
use_autocenter = !field.analog_wraps();
break;
case IPT_AD_STICK_X:
case IPT_AD_STICK_Y:
case IPT_AD_STICK_Z:
case IPT_PADDLE:
case IPT_PADDLE_V:
case IPT_PEDAL:
case IPT_PEDAL2:
case IPT_PEDAL3:
use_autocenter = true;
break;
default:
break;
}
// iterate over types
for (int type = 0; type < ANALOG_ITEM_COUNT; type++)
{
if ((ANALOG_ITEM_CENTERSPEED != type) || use_autocenter)
m_item_data.emplace_back(field, type);
}
m_field_data.emplace_back(field);
}
}
}
// restrict live display to 40% height plus borders
if ((line_height() * m_field_data.size()) > 0.4F)
m_bottom_fields = unsigned(0.4F / line_height());
else
m_bottom_fields = m_field_data.size();
}
bool menu_analog::scroll_if_expired(std::chrono::steady_clock::time_point now)
{
if (now < m_scroll_repeat)
return false;
if (pointer_action::SCROLL_DOWN == m_pointer_action)
{
if ((m_top_field + m_visible_fields) < m_field_data.size())
++m_top_field;
if ((m_top_field + m_visible_fields) == m_field_data.size())
m_pointer_action = pointer_action::NONE;
}
else
{
if (0 < m_top_field)
--m_top_field;
if (!m_top_field)
m_pointer_action = pointer_action::NONE;
}
return true;
}
bool menu_analog::update_scroll_drag(ui_event const &uievt)
{
// set thresholds depending on the direction for hysteresis
float const y(pointer_location().second);
float const base(m_base_pointer.second + (line_height() * ((y > m_last_pointer.second) ? -0.3F : 0.3F)));
auto const target(int((base - y) / line_height()));
m_last_pointer.second = base + (float(target) * line_height());
// scroll if it moved
int newtop(std::clamp<int>(m_scroll_base + target, 0, m_field_data.size() - m_visible_fields));
if (!m_hide_menu && (newtop != m_top_field))
{
// if the menu is visible, keep the highlighted field on-screen
void *const selectedref(get_selection_ref());
ioport_field *const selfield(selectedref ? &reinterpret_cast<item_data *>(selectedref)->field.get() : nullptr);
if (selfield)
{
auto const found(
std::find_if(
m_field_data.begin(),
m_field_data.end(),
[selfield] (field_data const &d) { return &d.field.get() == selfield; }));
if (m_field_data.end() != found)
{
auto const i(std::distance(m_field_data.begin(), found));
newtop = std::clamp<int>(newtop, i + 1 - m_visible_fields, i);
}
}
}
bool const scrolled(newtop != m_top_field);
m_top_field = newtop;
// catch the end of the gesture
if ((uievt.pointer_released & 0x01) || (uievt.pointer_pressed & ~u32(0x01)))
m_pointer_action = pointer_action::NONE;
return scrolled;
}
std::string menu_analog::item_text(int type, int value)
{
switch (type)
{
default:
case ANALOG_ITEM_KEYSPEED:
return string_format("%d", value);
case ANALOG_ITEM_CENTERSPEED:
return string_format("%d", value);
case ANALOG_ITEM_REVERSE:
return value ? _("On") : _("Off");
case ANALOG_ITEM_SENSITIVITY:
return string_format("%d", value);
}
}
} // namespace ui