df4ad896b2
-reworked monitor support -fixed small draw bugs -changed focus behaviour -added some events -fixed offset bug -added border -added shadow -reworkd anchor system -added possibility to remove background by setting the value to false
341 lines
14 KiB
Lua
341 lines
14 KiB
Lua
local function Textfield(name)
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local base = Object(name)
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local objectType = "Textfield"
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local hIndex, wIndex, textX, textY = 1, 1, 1, 1
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local lines = { "" }
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local keyWords = { [colors.purple] = { "break" } }
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base.width = 20
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base.height = 8
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base.bgColor = theme.textfieldBG
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base.fgColor = theme.textfieldFG
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base:setZIndex(5)
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local object = {
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getType = function(self)
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return objectType
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end;
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getLines = function(self)
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return lines
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end;
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getLine = function(self, index)
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return lines[index] or ""
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end;
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editLine = function(self, index, text)
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lines[index] = text or lines[index]
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return self
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end;
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addLine = function(self, text, index)
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if (index ~= nil) then
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table.insert(lines, index, text)
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else
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table.insert(lines, text)
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end
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return self
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end;
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addKeyword = function(self, keyword, color)
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end;
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removeLine = function(self, index)
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table.remove(lines, index or #lines)
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if (#lines <= 0) then
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table.insert(lines, "")
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end
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return self
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end;
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getTextCursor = function(self)
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return textX, textY
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end;
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getFocusHandler = function(self)
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base.getFocusHandler(self)
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if (self.parent ~= nil) then
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local obx, oby = self:getAnchorPosition()
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if (self.parent ~= nil) then
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self.parent:setCursor(true, obx + textX - wIndex, oby + textY - hIndex, self.fgColor)
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end
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end
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end;
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loseFocusHandler = function(self)
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base.loseFocusHandler(self)
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if (self.parent ~= nil) then
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self.parent:setCursor(false)
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end
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end;
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keyHandler = function(self, event, key)
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if (base.keyHandler(self, event, key)) then
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local obx, oby = self:getAnchorPosition()
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if (event == "key") then
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if (key == keys.backspace) then
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-- on backspace
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if (lines[textY] == "") then
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if (textY > 1) then
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table.remove(lines, textY)
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textX = lines[textY - 1]:len() + 1
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wIndex = textX - self.width + 1
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if (wIndex < 1) then
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wIndex = 1
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end
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textY = textY - 1
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end
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elseif (textX <= 1) then
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if (textY > 1) then
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textX = lines[textY - 1]:len() + 1
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wIndex = textX - self.width + 1
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if (wIndex < 1) then
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wIndex = 1
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end
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lines[textY - 1] = lines[textY - 1] .. lines[textY]
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table.remove(lines, textY)
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textY = textY - 1
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end
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else
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lines[textY] = lines[textY]:sub(1, textX - 2) .. lines[textY]:sub(textX, lines[textY]:len())
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if (textX > 1) then
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textX = textX - 1
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end
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if (wIndex > 1) then
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if (textX < wIndex) then
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wIndex = wIndex - 1
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end
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end
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end
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if (textY < hIndex) then
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hIndex = hIndex - 1
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end
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self:setValue("")
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end
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if (key == keys.delete) then
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-- on delete
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if (textX > lines[textY]:len()) then
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if (lines[textY + 1] ~= nil) then
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lines[textY] = lines[textY] .. lines[textY + 1]
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table.remove(lines, textY + 1)
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end
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else
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lines[textY] = lines[textY]:sub(1, textX - 1) .. lines[textY]:sub(textX + 1, lines[textY]:len())
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end
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end
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if (key == keys.enter) then
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-- on enter
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table.insert(lines, textY + 1, lines[textY]:sub(textX, lines[textY]:len()))
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lines[textY] = lines[textY]:sub(1, textX - 1)
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textY = textY + 1
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textX = 1
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wIndex = 1
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if (textY - hIndex >= self.height) then
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hIndex = hIndex + 1
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end
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self:setValue("")
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end
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if (key == keys.up) then
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-- arrow up
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if (textY > 1) then
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textY = textY - 1
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if (textX > lines[textY]:len() + 1) then
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textX = lines[textY]:len() + 1
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end
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if (wIndex > 1) then
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if (textX < wIndex) then
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wIndex = textX - self.width + 1
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if (wIndex < 1) then
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wIndex = 1
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end
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end
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end
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if (hIndex > 1) then
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if (textY < hIndex) then
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hIndex = hIndex - 1
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end
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end
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end
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end
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if (key == keys.down) then
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-- arrow down
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if (textY < #lines) then
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textY = textY + 1
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if (textX > lines[textY]:len() + 1) then
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textX = lines[textY]:len() + 1
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end
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if (textY >= hIndex + self.height) then
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hIndex = hIndex + 1
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end
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end
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end
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if (key == keys.right) then
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-- arrow right
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textX = textX + 1
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if (textY < #lines) then
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if (textX > lines[textY]:len() + 1) then
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textX = 1
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textY = textY + 1
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end
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elseif (textX > lines[textY]:len()) then
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textX = lines[textY]:len() + 1
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end
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if (textX < 1) then
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textX = 1
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end
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if (textX < wIndex) or (textX >= self.width + wIndex) then
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wIndex = textX - self.width + 1
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end
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if (wIndex < 1) then
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wIndex = 1
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end
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end
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if (key == keys.left) then
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-- arrow left
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textX = textX - 1
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if (textX >= 1) then
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if (textX < wIndex) or (textX >= self.width + wIndex) then
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wIndex = textX
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end
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end
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if (textY > 1) then
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if (textX < 1) then
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textY = textY - 1
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textX = lines[textY]:len() + 1
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wIndex = textX - self.width + 1
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end
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end
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if (textX < 1) then
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textX = 1
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end
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if (wIndex < 1) then
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wIndex = 1
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end
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end
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end
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if (event == "char") then
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lines[textY] = lines[textY]:sub(1, textX - 1) .. key .. lines[textY]:sub(textX, lines[textY]:len())
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textX = textX + 1
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if (textX >= self.width + wIndex) then
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wIndex = wIndex + 1
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end
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self:setValue("")
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end
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local cursorX = (textX <= lines[textY]:len() and textX - 1 or lines[textY]:len()) - (wIndex - 1)
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if (cursorX > self.x + self.width - 1) then
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cursorX = self.x + self.width - 1
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end
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local cursorY = (textY - hIndex < self.height and textY - hIndex or textY - hIndex - 1)
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if (cursorX < 1) then
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cursorX = 0
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end
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self.parent:setCursor(true, obx + cursorX, oby + cursorY, self.fgColor)
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return true
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end
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end;
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mouseHandler = function(self, event, button, x, y)
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if (base.mouseHandler(self, event, button, x, y)) then
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local obx, oby = self:getAbsolutePosition(self:getAnchorPosition())
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local anchx, anchy = self:getAnchorPosition()
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if (event == "mouse_click")or(event=="monitor_touch") then
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if (lines[y - oby + hIndex] ~= nil) then
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textX = x - obx + wIndex
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textY = y - oby + hIndex
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if (textX > lines[textY]:len()) then
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textX = lines[textY]:len() + 1
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end
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if (textX < wIndex) then
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wIndex = textX - 1
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if (wIndex < 1) then
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wIndex = 1
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end
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end
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if (self.parent ~= nil) then
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self.parent:setCursor(true, anchx + textX - wIndex, anchy + textY - hIndex, self.fgColor)
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end
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end
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end
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if (event == "mouse_drag") then
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if (lines[y - oby + hIndex] ~= nil) then
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textX = x - obx + wIndex
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textY = y - oby + hIndex
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if (textX > lines[textY]:len()) then
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textX = lines[textY]:len() + 1
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end
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if (textX < wIndex) then
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wIndex = textX - 1
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if (wIndex < 1) then
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wIndex = 1
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end
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end
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if (self.parent ~= nil) then
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self.parent:setCursor(true, anchx + textX - wIndex, anchy + textY - hIndex, self.fgColor)
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end
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end
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end
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if (event == "mouse_scroll") then
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hIndex = hIndex + button
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if (hIndex > #lines - (self.height - 1)) then
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hIndex = #lines - (self.height - 1)
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end
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if (hIndex < 1) then
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hIndex = 1
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end
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if (self.parent ~= nil) then
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if (obx + textX - wIndex >= obx and obx + textX - wIndex <= obx + self.width) and (oby + textY - hIndex >= oby and oby + textY - hIndex <= oby + self.height) then
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self.parent:setCursor(true, anchx + textX - wIndex, anchy + textY - hIndex, self.fgColor)
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else
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self.parent:setCursor(false)
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end
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end
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end
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self:setVisualChanged()
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return true
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end
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end;
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draw = function(self)
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if (base.draw(self)) then
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if (self.parent ~= nil) then
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local obx, oby = self:getAnchorPosition()
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if(self.bgColor~=false)then
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self.parent:drawBackgroundBox(obx, oby, self.width, self.height, self.bgColor)
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end
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if(self.fgColor~=false)then
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self.parent:drawForegroundBox(obx, oby, self.width, self.height, self.fgColor)
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end
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for n = 1, self.height do
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local text = ""
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if (lines[n + hIndex - 1] ~= nil) then
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text = lines[n + hIndex - 1]
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end
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text = text:sub(wIndex, self.width + wIndex - 1)
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local space = self.width - text:len()
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if (space < 0) then
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space = 0
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end
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text = text .. string.rep(" ", space)
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self.parent:setText(obx, oby + n - 1, text)
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end
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end
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self:setVisualChanged(false)
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end
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end;
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}
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return setmetatable(object, base)
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end |