started new compiling platform in packager.lua

source/objects/Scrollbar.lua

@@ -0,0 +1,129 @@
+local function Scrollbar(name)
+    local base = Object(name)
+    local objectType = "Scrollbar"
+
+    base.width = 1
+    base.height = 8
+    base.bgColor = colors.lightGray
+    base.fgColor = colors.gray
+    base:setValue(1)
+    base:setZIndex(2)
+
+    local barType = "vertical"
+    local symbol = " "
+    local symbolColor = colors.black
+    local bgSymbol = "\127"
+    local maxValue = base.height
+    local index = 1
+    local symbolSize = 1
+
+    local object = {
+        getType = function(self)
+            return objectType
+        end;
+
+        setSymbol = function(self, _symbol)
+            symbol = _symbol:sub(1, 1)
+            self:setVisualChanged()
+            return self
+        end;
+
+        setSymbolSize = function(self, size)
+            symbolSize = tonumber(size) or 1
+            if (barType == "vertical") then
+                self:setValue(index - 1 * (maxValue / (self.height - (symbolSize - 1))) - (maxValue / (self.height - (symbolSize - 1))))
+            elseif (barType == "horizontal") then
+                self:setValue(index - 1 * (maxValue / (self.width - (symbolSize - 1))) - (maxValue / (self.width - (symbolSize - 1))))
+            end
+            self:setVisualChanged()
+            return self
+        end;
+
+        setMaxValue = function(self, val)
+            maxValue = val
+            return self
+        end;
+
+        setBackgroundSymbol = function(self, _bgSymbol)
+            bgSymbol = string.sub(_bgSymbol, 1, 1)
+            self:setVisualChanged()
+            return self
+        end;
+
+        setSymbolColor = function(self, col)
+            symbolColor = col
+            self:setVisualChanged()
+            return self
+        end;
+
+        setBarType = function(self, _typ)
+            barType = _typ:lower()
+            return self
+        end;
+
+        mouseClickHandler = function(self, event, button, x, y)
+            if (base.mouseClickHandler(self, event, button, x, y)) then
+                local obx, oby = self:getAbsolutePosition(self:getAnchorPosition())
+                if (((event == "mouse_click") or (event == "mouse_drag")) and (button == 1))or(event=="monitor_touch") then
+                    if (barType == "horizontal") then
+                        for _index = 0, self.width do
+                            if (obx + _index == x) and (oby <= y) and (oby + self.height > y) then
+                                index = math.min(_index + 1, self.width - (symbolSize - 1))
+                                self:setValue(maxValue / self.width * (index))
+                                self:setVisualChanged()
+                            end
+                        end
+                    end
+                    if (barType == "vertical") then
+                        for _index = 0, self.height do
+                            if (oby + _index == y) and (obx <= x) and (obx + self.width > x) then
+                                index = math.min(_index + 1, self.height - (symbolSize - 1))
+                                self:setValue(maxValue / self.height * (index))
+                                self:setVisualChanged()
+                            end
+                        end
+                    end
+                end
+                if (event == "mouse_scroll") then
+                    index = index + button
+                    if (index < 1) then
+                        index = 1
+                    end
+                    index = math.min(index, (barType == "vertical" and self.height or self.width) - (symbolSize - 1))
+                    self:setValue(maxValue / (barType == "vertical" and self.height or self.width) * index)
+                end
+                return true
+            end
+        end;
+
+        draw = function(self)
+            if (base.draw(self)) then
+                if (self.parent ~= nil) then
+                    local obx, oby = self:getAnchorPosition()
+                    if (barType == "horizontal") then
+                        self.parent:writeText(obx, oby, bgSymbol:rep(index - 1), self.bgColor, self.fgColor)
+                        self.parent:writeText(obx + index - 1, oby, symbol:rep(symbolSize), symbolColor, symbolColor)
+                        self.parent:writeText(obx + index + symbolSize - 1, oby, bgSymbol:rep(self.width - (index + symbolSize - 1)), self.bgColor, self.fgColor)
+                    end
+
+                    if (barType == "vertical") then
+                        for n = 0, self.height - 1 do
+
+                            if (index == n + 1) then
+                                for curIndexOffset = 0, math.min(symbolSize - 1, self.height) do
+                                    self.parent:writeText(obx, oby + n + curIndexOffset, symbol, symbolColor, symbolColor)
+                                end
+                            else
+                                if (n + 1 < index) or (n + 1 > index - 1 + symbolSize) then
+                                    self.parent:writeText(obx, oby + n, bgSymbol, self.bgColor, self.fgColor)
+                                end
+                            end
+                        end
+                    end
+                end
+            end
+        end;
+    }
+
+    return setmetatable(object, base)
+end