slabOS/lib/basalt/objects/Program.lua
2025-06-02 10:23:40 +03:00

721 lines
24 KiB
Lua

local tHex = require("tHex")
local process = require("process")
local sub = string.sub
return function(name, basalt)
local base = basalt.getObject("VisualObject")(name, basalt)
local objectType = "Program"
local object
local cachedPath
local enviroment = {}
local function createBasaltWindow(x, y, width, height)
local xCursor, yCursor = 1, 1
local bgColor, fgColor = colors.black, colors.white
local cursorBlink = false
local visible = false
local cacheT = {}
local cacheBG = {}
local cacheFG = {}
local tPalette = {}
local emptySpaceLine
local emptyColorLines = {}
for i = 0, 15 do
local c = 2 ^ i
tPalette[c] = { basalt.getTerm().getPaletteColour(c) }
end
local function createEmptyLines()
emptySpaceLine = (" "):rep(width)
for n = 0, 15 do
local nColor = 2 ^ n
local sHex = tHex[nColor]
emptyColorLines[nColor] = sHex:rep(width)
end
end
local function recreateWindowArray()
createEmptyLines()
local emptyText = emptySpaceLine
local emptyFG = emptyColorLines[colors.white]
local emptyBG = emptyColorLines[colors.black]
for n = 1, height do
cacheT[n] = sub(cacheT[n] == nil and emptyText or cacheT[n] .. emptyText:sub(1, width - cacheT[n]:len()), 1, width)
cacheFG[n] = sub(cacheFG[n] == nil and emptyFG or cacheFG[n] .. emptyFG:sub(1, width - cacheFG[n]:len()), 1, width)
cacheBG[n] = sub(cacheBG[n] == nil and emptyBG or cacheBG[n] .. emptyBG:sub(1, width - cacheBG[n]:len()), 1, width)
end
base.updateDraw(base)
end
recreateWindowArray()
local function updateCursor()
if xCursor >= 1 and yCursor >= 1 and xCursor <= width and yCursor <= height then
--parentTerminal.setCursorPos(xCursor + x - 1, yCursor + y - 1)
else
--parentTerminal.setCursorPos(0, 0)
end
--parentTerminal.setTextColor(fgColor)
end
local function internalBlit(sText, sTextColor, sBackgroundColor)
if yCursor < 1 or yCursor > height or xCursor < 1 or xCursor + #sText - 1 > width then
return
end
cacheT[yCursor] = sub(cacheT[yCursor], 1, xCursor - 1) .. sText .. sub(cacheT[yCursor], xCursor + #sText, width)
cacheFG[yCursor] = sub(cacheFG[yCursor], 1, xCursor - 1) .. sTextColor .. sub(cacheFG[yCursor], xCursor + #sText, width)
cacheBG[yCursor] = sub(cacheBG[yCursor], 1, xCursor - 1) .. sBackgroundColor .. sub(cacheBG[yCursor], xCursor + #sText, width)
xCursor = xCursor + #sText
if visible then
updateCursor()
end
object:updateDraw()
end
local function setText(_x, _y, text)
if (text ~= nil) then
local gText = cacheT[_y]
if (gText ~= nil) then
cacheT[_y] = sub(gText:sub(1, _x - 1) .. text .. gText:sub(_x + (text:len()), width), 1, width)
end
end
object:updateDraw()
end
local function setBG(_x, _y, colorStr)
if (colorStr ~= nil) then
local gBG = cacheBG[_y]
if (gBG ~= nil) then
cacheBG[_y] = sub(gBG:sub(1, _x - 1) .. colorStr .. gBG:sub(_x + (colorStr:len()), width), 1, width)
end
end
object:updateDraw()
end
local function setFG(_x, _y, colorStr)
if (colorStr ~= nil) then
local gFG = cacheFG[_y]
if (gFG ~= nil) then
cacheFG[_y] = sub(gFG:sub(1, _x - 1) .. colorStr .. gFG:sub(_x + (colorStr:len()), width), 1, width)
end
end
object:updateDraw()
end
local setTextColor = function(color)
if type(color) ~= "number" then
error("bad argument #1 (expected number, got " .. type(color) .. ")", 2)
elseif tHex[color] == nil then
error("Invalid color (got " .. color .. ")", 2)
end
fgColor = color
end
local setBackgroundColor = function(color)
if type(color) ~= "number" then
error("bad argument #1 (expected number, got " .. type(color) .. ")", 2)
elseif tHex[color] == nil then
error("Invalid color (got " .. color .. ")", 2)
end
bgColor = color
end
local setPaletteColor = function(colour, r, g, b)
-- have to work on
if type(colour) ~= "number" then
error("bad argument #1 (expected number, got " .. type(colour) .. ")", 2)
end
if tHex[colour] == nil then
error("Invalid color (got " .. colour .. ")", 2)
end
local tCol
if type(r) == "number" and g == nil and b == nil then
tCol = { colours.rgb8(r) }
tPalette[colour] = tCol
else
if type(r) ~= "number" then
error("bad argument #2 (expected number, got " .. type(r) .. ")", 2)
end
if type(g) ~= "number" then
error("bad argument #3 (expected number, got " .. type(g) .. ")", 2)
end
if type(b) ~= "number" then
error("bad argument #4 (expected number, got " .. type(b) .. ")", 2)
end
tCol = tPalette[colour]
tCol[1] = r
tCol[2] = g
tCol[3] = b
end
end
local getPaletteColor = function(colour)
if type(colour) ~= "number" then
error("bad argument #1 (expected number, got " .. type(colour) .. ")", 2)
end
if tHex[colour] == nil then
error("Invalid color (got " .. colour .. ")", 2)
end
local tCol = tPalette[colour]
return tCol[1], tCol[2], tCol[3]
end
local basaltwindow = {
setCursorPos = function(_x, _y)
if type(_x) ~= "number" then
error("bad argument #1 (expected number, got " .. type(_x) .. ")", 2)
end
if type(_y) ~= "number" then
error("bad argument #2 (expected number, got " .. type(_y) .. ")", 2)
end
xCursor = math.floor(_x)
yCursor = math.floor(_y)
if (visible) then
updateCursor()
end
end,
getCursorPos = function()
return xCursor, yCursor
end;
setCursorBlink = function(blink)
if type(blink) ~= "boolean" then
error("bad argument #1 (expected boolean, got " .. type(blink) .. ")", 2)
end
cursorBlink = blink
end;
getCursorBlink = function()
return cursorBlink
end;
getPaletteColor = getPaletteColor,
getPaletteColour = getPaletteColor,
setBackgroundColor = setBackgroundColor,
setBackgroundColour = setBackgroundColor,
setTextColor = setTextColor,
setTextColour = setTextColor,
setPaletteColor = setPaletteColor,
setPaletteColour = setPaletteColor,
getBackgroundColor = function()
return bgColor
end;
getBackgroundColour = function()
return bgColor
end;
getSize = function()
return width, height
end;
getTextColor = function()
return fgColor
end;
getTextColour = function()
return fgColor
end;
basalt_resize = function(_width, _height)
width, height = _width, _height
recreateWindowArray()
end;
basalt_reposition = function(_x, _y)
x, y = _x, _y
end;
basalt_setVisible = function(vis)
visible = vis
end;
drawBackgroundBox = function(_x, _y, _width, _height, bgCol)
for n = 1, _height do
setBG(_x, _y + (n - 1), tHex[bgCol]:rep(_width))
end
end;
drawForegroundBox = function(_x, _y, _width, _height, fgCol)
for n = 1, _height do
setFG(_x, _y + (n - 1), tHex[fgCol]:rep(_width))
end
end;
drawTextBox = function(_x, _y, _width, _height, symbol)
for n = 1, _height do
setText(_x, _y + (n - 1), symbol:rep(_width))
end
end;
basalt_update = function()
for n = 1, height do
object:addBlit(1, n, cacheT[n], cacheFG[n], cacheBG[n])
end
end,
scroll = function(offset)
assert(type(offset) == "number", "bad argument #1 (expected number, got " .. type(offset) .. ")")
if offset ~= 0 then
for newY = 1, height do
local y = newY + offset
if y < 1 or y > height then
cacheT[newY] = emptySpaceLine
cacheFG[newY] = emptyColorLines[fgColor]
cacheBG[newY] = emptyColorLines[bgColor]
else
cacheT[newY] = cacheT[y]
cacheBG[newY] = cacheBG[y]
cacheFG[newY] = cacheFG[y]
end
end
end
if (visible) then
updateCursor()
end
end,
isColor = function()
return basalt.getTerm().isColor()
end;
isColour = function()
return basalt.getTerm().isColor()
end;
write = function(text)
text = tostring(text)
if (visible) then
internalBlit(text, tHex[fgColor]:rep(text:len()), tHex[bgColor]:rep(text:len()))
end
end;
clearLine = function()
if (visible) then
setText(1, yCursor, (" "):rep(width))
setBG(1, yCursor, tHex[bgColor]:rep(width))
setFG(1, yCursor, tHex[fgColor]:rep(width))
end
if (visible) then
updateCursor()
end
end;
clear = function()
for n = 1, height do
setText(1, n, (" "):rep(width))
setBG(1, n, tHex[bgColor]:rep(width))
setFG(1, n, tHex[fgColor]:rep(width))
end
if (visible) then
updateCursor()
end
end;
blit = function(text, fgcol, bgcol)
if type(text) ~= "string" then
error("bad argument #1 (expected string, got " .. type(text) .. ")", 2)
end
if type(fgcol) ~= "string" then
error("bad argument #2 (expected string, got " .. type(fgcol) .. ")", 2)
end
if type(bgcol) ~= "string" then
error("bad argument #3 (expected string, got " .. type(bgcol) .. ")", 2)
end
if #fgcol ~= #text or #bgcol ~= #text then
error("Arguments must be the same length", 2)
end
if (visible) then
internalBlit(text, fgcol, bgcol)
end
end
}
return basaltwindow
end
base:setZIndex(5)
base:setSize(30, 12)
local pWindow = createBasaltWindow(1, 1, 30, 12)
local curProcess
local paused = false
local queuedEvent = {}
local function updateCursor(self)
local parent = self:getParent()
local xCur, yCur = pWindow.getCursorPos()
local obx, oby = self:getPosition()
local w,h = self:getSize()
if (obx + xCur - 1 >= 1 and obx + xCur - 1 <= obx + w - 1 and yCur + oby - 1 >= 1 and yCur + oby - 1 <= oby + h - 1) then
parent:setCursor(self:isFocused() and pWindow.getCursorBlink(), obx + xCur - 1, yCur + oby - 1, pWindow.getTextColor())
end
end
local function resumeProcess(self, event, ...)
local ok, result = curProcess:resume(event, ...)
if (ok==false)and(result~=nil)and(result~="Terminated")then
local val = self:sendEvent("program_error", result)
if(val~=false)then
error("Basalt Program - "..result)
end
end
if(curProcess:getStatus()=="dead")then
self:sendEvent("program_done")
end
end
local function mouseEvent(self, event, p1, x, y)
if (curProcess == nil) then
return false
end
if not (curProcess:isDead()) then
if not (paused) then
local absX, absY = self:getAbsolutePosition()
resumeProcess(self, event, p1, x-absX+1, y-absY+1)
updateCursor(self)
end
end
end
local function keyEvent(self, event, key, isHolding)
if (curProcess == nil) then
return false
end
if not (curProcess:isDead()) then
if not (paused) then
if (self.draw) then
resumeProcess(self, event, key, isHolding)
updateCursor(self)
end
end
end
end
object = {
getType = function(self)
return objectType
end;
show = function(self)
base.show(self)
pWindow.setBackgroundColor(self:getBackground())
pWindow.setTextColor(self:getForeground())
pWindow.basalt_setVisible(true)
return self
end;
hide = function(self)
base.hide(self)
pWindow.basalt_setVisible(false)
return self
end;
setPosition = function(self, x, y, rel)
base.setPosition(self, x, y, rel)
pWindow.basalt_reposition(self:getPosition())
return self
end,
getBasaltWindow = function()
return pWindow
end;
getBasaltProcess = function()
return curProcess
end;
setSize = function(self, width, height, rel)
base.setSize(self, width, height, rel)
pWindow.basalt_resize(self:getWidth(), self:getHeight())
return self
end;
getStatus = function(self)
if (curProcess ~= nil) then
return curProcess:getStatus()
end
return "inactive"
end;
setEnviroment = function(self, env)
enviroment = env or {}
return self
end,
execute = function(self, path, ...)
cachedPath = path or cachedPath
curProcess = process:new(cachedPath, pWindow, enviroment, ...)
pWindow.setBackgroundColor(colors.black)
pWindow.setTextColor(colors.white)
pWindow.clear()
pWindow.setCursorPos(1, 1)
pWindow.setBackgroundColor(self:getBackground())
pWindow.setTextColor(self:getForeground() or colors.white)
pWindow.basalt_setVisible(true)
resumeProcess(self)
paused = false
self:listenEvent("mouse_click", self)
self:listenEvent("mouse_up", self)
self:listenEvent("mouse_drag", self)
self:listenEvent("mouse_scroll", self)
self:listenEvent("key", self)
self:listenEvent("key_up", self)
self:listenEvent("char", self)
self:listenEvent("other_event", self)
return self
end;
setExecute = function(self, path, ...)
return self:execute(path, ...)
end,
stop = function(self)
local parent = self:getParent()
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
resumeProcess(self, "terminate")
if (curProcess:isDead()) then
parent:setCursor(false)
end
end
end
parent:removeEvents(self)
return self
end;
pause = function(self, p)
paused = p or (not paused)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
if not (paused) then
self:injectEvents(table.unpack(queuedEvent))
queuedEvent = {}
end
end
end
return self
end;
isPaused = function(self)
return paused
end;
injectEvent = function(self, event, ign, ...)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
if (paused == false) or (ign) then
resumeProcess(self, event, ...)
else
table.insert(queuedEvent, { event = event, args = {...} })
end
end
end
return self
end;
getQueuedEvents = function(self)
return queuedEvent
end;
updateQueuedEvents = function(self, events)
queuedEvent = events or queuedEvent
return self
end;
injectEvents = function(self, ...)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
for _, value in pairs({...}) do
resumeProcess(self, value.event, table.unpack(value.args))
end
end
end
return self
end;
mouseHandler = function(self, button, x, y)
if (base.mouseHandler(self, button, x, y)) then
mouseEvent(self, "mouse_click", button, x, y)
return true
end
return false
end,
mouseUpHandler = function(self, button, x, y)
if (base.mouseUpHandler(self, button, x, y)) then
mouseEvent(self, "mouse_up", button, x, y)
return true
end
return false
end,
scrollHandler = function(self, dir, x, y)
if (base.scrollHandler(self, dir, x, y)) then
mouseEvent(self, "mouse_scroll", dir, x, y)
return true
end
return false
end,
dragHandler = function(self, button, x, y)
if (base.dragHandler(self, button, x, y)) then
mouseEvent(self, "mouse_drag", button, x, y)
return true
end
return false
end,
keyHandler = function(self, key, isHolding)
if(base.keyHandler(self, key, isHolding))then
keyEvent(self, "key", key, isHolding)
return true
end
return false
end,
keyUpHandler = function(self, key)
if(base.keyUpHandler(self, key))then
keyEvent(self, "key_up", key)
return true
end
return false
end,
charHandler = function(self, char)
if(base.charHandler(self, char))then
keyEvent(self, "char", char)
return true
end
return false
end,
getFocusHandler = function(self)
base.getFocusHandler(self)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
if not (paused) then
local parent = self:getParent()
if (parent ~= nil) then
local xCur, yCur = pWindow.getCursorPos()
local obx, oby = self:getPosition()
local w,h = self:getSize()
if (obx + xCur - 1 >= 1 and obx + xCur - 1 <= obx + w - 1 and yCur + oby - 1 >= 1 and yCur + oby - 1 <= oby + h - 1) then
parent:setCursor(pWindow.getCursorBlink(), obx + xCur - 1, yCur + oby - 1, pWindow.getTextColor())
end
end
end
end
end
end,
loseFocusHandler = function(self)
base.loseFocusHandler(self)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
local parent = self:getParent()
if (parent ~= nil) then
parent:setCursor(false)
end
end
end
end,
eventHandler = function(self, event, ...)
base.eventHandler(self, event, ...)
if curProcess == nil then
return
end
if not curProcess:isDead() then
if not paused then
resumeProcess(self, event, ...)
if self:isFocused() then
local parent = self:getParent()
local obx, oby = self:getPosition()
local xCur, yCur = pWindow.getCursorPos()
local w,h = self:getSize()
if obx + xCur - 1 >= 1 and obx + xCur - 1 <= obx + w - 1 and yCur + oby - 1 >= 1 and yCur + oby - 1 <= oby + h - 1 then
parent:setCursor(pWindow.getCursorBlink(), obx + xCur - 1, yCur + oby - 1, pWindow.getTextColor())
end
end
else
table.insert(queuedEvent, { event = event, args = { ... } })
end
end
end,
resizeHandler = function(self, ...)
base.resizeHandler(self, ...)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
if not (paused) then
pWindow.basalt_resize(self:getSize())
resumeProcess(self, "term_resize", self:getSize())
else
pWindow.basalt_resize(self:getSize())
table.insert(queuedEvent, { event = "term_resize", args = { self:getSize() } })
end
end
end
end,
repositionHandler = function(self, ...)
base.repositionHandler(self, ...)
if (curProcess ~= nil) then
if not (curProcess:isDead()) then
pWindow.basalt_reposition(self:getPosition())
end
end
end,
draw = function(self)
base.draw(self)
self:addDraw("program", function()
local parent = self:getParent()
local obx, oby = self:getPosition()
local xCur, yCur = pWindow.getCursorPos()
local w,h = self:getSize()
pWindow.basalt_update()
end)
end,
onError = function(self, ...)
for _,v in pairs(table.pack(...))do
if(type(v)=="function")then
self:registerEvent("program_error", v)
end
end
local parent = self:getParent()
self:listenEvent("other_event")
return self
end,
onDone = function(self, ...)
for _,v in pairs(table.pack(...))do
if(type(v)=="function")then
self:registerEvent("program_done", v)
end
end
local parent = self:getParent()
self:listenEvent("other_event")
return self
end,
}
object.__index = object
return setmetatable(object, base)
end