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-- calculator.lua
-- ----------------------------------------------------------------
local function get_gui_root(player)
return player.gui.screen
end
-- ----------------------------------------------------------------
function show_rant(player, enabled)
local root = get_gui_root(player)
if enabled then
root.calcui.calcui_table.calcui_table_col2.calcui_rant.sprite = "sprite_calcui_rant"
root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.style.height = 196
else
root.calcui.calcui_table.calcui_table_col2.calcui_rant.sprite = nil
root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.style.height = 252
end
end
-- ----------------------------------------------------------------
local function destroy_calculator(player)
local root = get_gui_root(player)
if root.calcui then
root.calcui.destroy()
end
end
-- ----------------------------------------------------------------
function show_calculator(player)
local root = get_gui_root(player)
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if not root.calcui then
local calcui = root.add({
type = "frame",
name = "calcui",
style = "dialog_frame",
direction = "vertical"
})
local flow = calcui.add({
type = "flow",
name = "calcui_flow"
})
flow.style.horizontally_stretchable = "on"
flow.add({
type = "label",
caption = {"calculator-ui.title"},
style = "frame_title"
}).drag_target = calcui
local widget = flow.add({
type = "empty-widget",
style = "draggable_space_header",
name = "calcui_drag"
})
widget.drag_target = calcui
widget.style.horizontally_stretchable = "on"
widget.style.minimal_width = 24
widget.style.natural_height = 24
flow.add({
type = "sprite-button",
sprite = "utility/close_white",
style = "frame_action_button",
name = "calcui_close"
})
local table = calcui.add({
type = "table",
name = "calcui_table",
column_count = "2",
vertical_centering = "false"
})
local col1 = table.add({
type = "flow",
name = "calcui_table_col1",
direction = "vertical"
})
local display = col1.add({
type = "textfield",
style = "calcui_textfield_style",
caption = "",
name = "calcui_display"
})
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local row1 = col1.add({type="flow", name="calcui_col1_row1", direction="horizontal"})
row1.add({type="button", style="calcui_button_style", caption="CE", name="calcui_button_CE"}) -- CE = Clear Entry (just this line)
row1.add({type="button", style="calcui_button_style", caption="C", name="calcui_button_C"}) -- C = Clear (all, past results as well)
row1.add({type="button", style="calcui_button_style", caption="BS", name="calcui_button_BS"})
row1.add({type="button", style="calcui_button_style", caption="/", name="calcui_button_DIV"})
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local row2 = col1.add({type="flow", name="calcui_col1_row2", direction="horizontal"})
row2.add({type="button", style="calcui_button_style", caption="7", name="calcui_button_7"})
row2.add({type="button", style="calcui_button_style", caption="8", name="calcui_button_8"})
row2.add({type="button", style="calcui_button_style", caption="9", name="calcui_button_9"})
row2.add({type="button", style="calcui_button_style", caption="*", name="calcui_button_MUL"})
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local row3 = col1.add({type="flow", name="calcui_col1_row3", direction="horizontal"})
row3.add({type="button", style="calcui_button_style", caption="4", name="calcui_button_4"})
row3.add({type="button", style="calcui_button_style", caption="5", name="calcui_button_5"})
row3.add({type="button", style="calcui_button_style", caption="6", name="calcui_button_6"})
row3.add({type="button", style="calcui_button_style", caption="-", name="calcui_button_SUB"})
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local row4 = col1.add({type="flow", name="calcui_col1_row4", direction="horizontal"})
row4.add({type="button", style="calcui_button_style", caption="1", name="calcui_button_1"})
row4.add({type="button", style="calcui_button_style", caption="2", name="calcui_button_2"})
row4.add({type="button", style="calcui_button_style", caption="3", name="calcui_button_3"})
row4.add({type="button", style="calcui_button_style", caption="+", name="calcui_button_ADD"})
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local row5 = col1.add({type="flow", name="calcui_col1_row5", direction="horizontal"})
row5.add({type="button", style="calcui_button_style", caption="%", name="calcui_button_PERC"})
row5.add({type="button", style="calcui_button_style", caption="0", name="calcui_button_0"})
row5.add({type="button", style="calcui_button_style", caption=".", name="calcui_button_DOT"})
row5.add({type="button", style="calcui_button_style", caption="=", name="calcui_button_EQU"})
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local col2 = table.add({
type = "flow",
name = "calcui_table_col2",
direction = "vertical"
})
local result = col2.add({
type = "label",
caption = "= ",
name = "calcui_display_result"
})
result.style.font = "default-large"
local rant = col2.add({
type = "sprite",
name = "calcui_rant"
})
col2.add({
type = "line",
direction = "horizontal"
})
local scroll = col2.add({
type = "scroll-pane",
name = "calcui_scroll_pane"
})
scroll.style.height = 252
local recents = scroll.add({
type = "table",
caption = "",
name = "calcui_result_table",
column_count = "2"
})
recents.style.column_alignments[1] = "right"
-- center the gui
calcui.force_auto_center()
end
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end
-- ----------------------------------------------------------------
function hide_calculator(player)
destroy_calculator(player)
end
-- ----------------------------------------------------------------
function toggle_calculator(player)
local root = get_gui_root(player)
if root and root.calcui then
hide_calculator(player)
else
show_calculator(player)
end
end
-- ----------------------------------------------------------------
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function focus_on_input(player)
local root = get_gui_root(player)
root.calcui.calcui_table.calcui_table_col1.calcui_display.focus()
end
-- ----------------------------------------------------------------
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function clear_equation(player)
local root = get_gui_root(player)
root.calcui.calcui_table.calcui_table_col1.calcui_display.text = ""
end
-- ----------------------------------------------------------------
function process_ce_key(player, button)
local root = get_gui_root(player)
clear_equation(player)
root.calcui.calcui_table.calcui_table_col2.calcui_display_result.caption = "="
end
-- ----------------------------------------------------------------
function process_c_key(player, button)
local root = get_gui_root(player)
process_ce_key(player, button)
root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table.clear()
end
-- ----------------------------------------------------------------
function process_backspace_key(player, button)
local root = get_gui_root(player)
root.calcui.calcui_table.calcui_table_col1.calcui_display.text = string.sub(root.calcui.calcui_table.calcui_table_col1.calcui_display.text, 1, -2)
end
-- ----------------------------------------------------------------
function fix_equation(equation)
local result = equation
-- fix math library shortcuts
local math_lib = {
["abs"] = "math.abs",
["acos"] = "math.acos",
["asin"] = "math.asin",
["atan"] = "math.atan",
["ceil"] = "math.ceil",
["floor"] = "math.floor",
["cos"] = "math.cos",
["sin"] = "math.sin",
["tan"] = "math.tan",
["deg"] = "math.deg",
["rad"] = "math.rad",
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["exp"] = "math.exp",
["log"] = "math.log",
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["min"] = "math.min",
["max"] = "math.max",
["modf"] = "math.modf",
["sqrt"] = "math.sqrt",
["huge"] = "math.huge",
["pi"] = "math.pi"
}
for key, val in pairs(math_lib) do
result = result:gsub(key, val)
end
-- fix percentage
result = result:gsub("(%%)", "/100")
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-- fix danish keyboard
result = result:gsub(",", ".")
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return result
end
-- ----------------------------------------------------------------
function process_equal_key(player, button)
local root = get_gui_root(player)
local original_equation = root.calcui.calcui_table.calcui_table_col1.calcui_display.text;
equation = fix_equation(original_equation)
-- just testing
--root.calcui.calcui_table.calcui_table_col1.calcui_display.text = equation
if not (equation == nil or equation == "") then
local status, retval = pcall(function()
return load("return " .. equation)()
end)
root.calcui.calcui_table.calcui_table_col2.calcui_display_result.tooltip = retval
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status, retval_show = pcall(function()
local result = string.format("%0." .. settings.get_player_settings(player)["calcui-decimal-places"].value .. "f", retval)
if result:len() > tostring(retval):len() then
result = retval
end
return result
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end)
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if retval_show == nil or retval_show == "" then
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status = false
end
if not status then
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retval_show = "NaN"
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show_rant(player, true)
else
if retval <= 0 then
show_rant(player, true)
else
show_rant(player, false)
end
end
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root.calcui.calcui_table.calcui_table_col2.calcui_display_result.caption = "= " .. retval_show
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-- only write in recent table if actually a result
if status then
-- check last equation and only insert if not the same
local item_size = #root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table.children
if item_size == 0 or root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table.children[item_size-1].caption ~= original_equation then
local recent_equation = root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table.add({
type = "label",
name = "calcui_recent_equation_" .. item_size,
caption = original_equation,
tooltip = {"calculator-ui.recent_tooltip"}
})
local recent_result = root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table.add({
type = "label",
name = "calcui_recent_result_" .. item_size,
caption = root.calcui.calcui_table.calcui_table_col2.calcui_display_result.caption
})
root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.scroll_to_bottom()
end
end
end
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if settings.get_player_settings(player)["calcui-clear-on-calc"].value then
clear_equation(player)
end
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end
-- ----------------------------------------------------------------
function display_addchar(player, char)
local root = get_gui_root(player)
root.calcui.calcui_table.calcui_table_col1.calcui_display.text = root.calcui.calcui_table.calcui_table_col1.calcui_display.text .. char
show_rant(player, false)
end
-- ----------------------------------------------------------------
local button_dispatch = {
["CE"] = process_ce_key,
["C"] = process_c_key,
["BS"] = process_backspace_key,
--
["EQU"] = process_equal_key
}
local button_addchar = {
["DIV"] = "/",
--
["7"] = "7",
["8"] = "8",
["9"] = "9",
["MUL"] = "*",
--
["4"] = "4",
["5"] = "5",
["6"] = "6",
["SUB"] = "-",
--
["1"] = "1",
["2"] = "2",
["3"] = "3",
["ADD"] = "+",
--
["PERC"] = "%",
["0"] = "0",
["DOT"] = "."
}
function handle_calcui_click(event, player)
debug_print("handle_calcui_click()")
local event_name = event.element.name
local button_prefix = "calcui_button_"
local button_prefix_len = string.len(button_prefix)
local recent_prefix = "calcui_recent_"
local recent_prefix_len = string.len(recent_prefix);
-- calculator buttons
if string.sub(event_name, 1, button_prefix_len) == button_prefix then
show_rant(player, false)
button = string.sub(event_name, button_prefix_len + 1 )
debug_print("handle_calcui_click button " .. button)
local dispatch_func = button_dispatch[button]
if dispatch_func then
dispatch_func(player, button)
end
local addchar = button_addchar[button]
if addchar then
display_addchar(player, addchar)
end
-- close button
elseif event_name == "calcui_close" then
hide_calculator(player)
-- recent results
elseif string.sub(event_name, 1, recent_prefix_len) == recent_prefix then
if event.button == defines.mouse_button_type.left and
event.shift == true then
-- copy equation to display
local root = get_gui_root(player)
root.calcui.calcui_table.calcui_table_col1.calcui_display.text = root.calcui.calcui_table.calcui_table_col2.calcui_scroll_pane.calcui_result_table[event_name].caption
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focus_on_input(player)
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end
end
end
-- ----------------------------------------------------------------
function calcui_on_gui_text_changed(event)
if event.element.name == "calcui_display" then
local player = game.players[event.player_index]
local root = get_gui_root(player)
if string.find(root.calcui.calcui_table.calcui_table_col1.calcui_display.text, "=") then
root.calcui.calcui_table.calcui_table_col1.calcui_display.text = root.calcui.calcui_table.calcui_table_col1.calcui_display.text:gsub("=", "")
process_equal_key(player)
end
end
end
-- ----------------------------------------------------------------
function calcui_on_gui_location_changed(event)
if event.element.name == "calcui" then
local player = game.players[event.player_index]
local root = get_gui_root(player)
root.calcui.location = event.element.location
end
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end
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