91555a19b7
- Improved crafting UI - Added vertical scrollbar to Items tab - Added Knockback calculations - Updated data from beta patch
317 lines
8.5 KiB
Lua
317 lines
8.5 KiB
Lua
-- Path of Building
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--
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-- Class: Scroll Bar
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-- Scroll bar control.
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--
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local launch, main = ...
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local m_min = math.min
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local m_max = math.max
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local m_ceil = math.ceil
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local m_floor = math.floor
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local ScrollBarClass = common.NewClass("ScrollBarControl", "Control", function(self, anchor, x, y, width, height, step, dir, autoHide)
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self.Control(anchor, x, y, width, height)
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self.step = step or width * 2
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self.dir = dir or "VERTICAL"
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self.offset = 0
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self.enabled = false
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if autoHide then
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self.shown = function()
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return self.enabled
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end
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end
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end)
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function ScrollBarClass:SetContentDimension(conDim, viewDim)
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self.conDim = conDim
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self.viewDim = viewDim
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if conDim <= viewDim then
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self.enabled = false
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self.offsetMax = 0
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self.offset = 0
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else
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local width, height = self:GetSize()
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self.enabled = true
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if self.dir == "HORIZONTAL" then
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self.knobDim = m_max(height, (width - height * 2) * viewDim / conDim)
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self.knobTravel = (width - height * 2) - self.knobDim
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else
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self.knobDim = m_max(width, (height - width * 2) * viewDim / conDim)
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self.knobTravel = (height - width * 2) - self.knobDim
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end
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self.offsetMax = conDim - viewDim
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self.offset = m_min(self.offset, self.offsetMax)
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end
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end
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function ScrollBarClass:SetOffset(offset)
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self.offset = m_floor(m_max(0, m_min(self.offsetMax or 0, offset)))
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end
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function ScrollBarClass:Scroll(mult)
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self:SetOffset(self.offset + self.step * mult)
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end
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function ScrollBarClass:ScrollIntoView(minDim, size)
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if self.offset > minDim then
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self:SetOffset(minDim)
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elseif self.offset + self.viewDim < minDim + size then
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self:SetOffset(minDim + size - self.viewDim)
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end
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end
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function ScrollBarClass:SetOffsetFromKnobPos(knobPos)
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self:SetOffset(self.offsetMax * (knobPos / self.knobTravel))
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end
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function ScrollBarClass:GetKnobPosForOffset()
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return self.knobTravel * (self.offset / self.offsetMax)
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end
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function ScrollBarClass:IsMouseOver()
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if not self:IsShown() then
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return false
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end
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local x, y = self:GetPos()
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local width, height = self:GetSize()
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local cursorX, cursorY = GetCursorPos()
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local mOver = cursorX >= x and cursorY >= y and cursorX < x + width and cursorY < y + height
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local mOverComp
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if mOver and self.enabled then
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local relDim
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local shortDim, longDim
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if self.dir == "HORIZONTAL" then
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relDim = cursorX - x
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shortDim = height
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longDim = width
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else
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relDim = cursorY - y
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shortDim = width
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longDim = height
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end
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if relDim < shortDim then
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mOverComp = "UP"
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elseif relDim >= longDim - shortDim then
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mOverComp = "DOWN"
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else
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local knobPos = self:GetKnobPosForOffset()
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if relDim < shortDim + knobPos then
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mOverComp = "SLIDEUP"
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elseif relDim >= shortDim + knobPos + self.knobDim then
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mOverComp = "SLIDEDOWN"
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else
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mOverComp = "KNOB"
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end
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end
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end
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return mOver, mOverComp
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end
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function ScrollBarClass:Draw()
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local x, y = self:GetPos()
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local width, height = self:GetSize()
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local enabled = self:IsEnabled()
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local mOver, mOverComp = self:IsMouseOver()
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local dir = self.dir
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if not IsKeyDown("LEFTBUTTON") then
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self.dragging = false
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end
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if self.dragging then
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local cursorX, cursorY = GetCursorPos()
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if self.dir == "HORIZONTAL" then
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self:SetOffsetFromKnobPos((cursorX - self.dragCX) + self.dragKnobPos)
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else
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self:SetOffsetFromKnobPos((cursorY - self.dragCY) + self.dragKnobPos)
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end
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elseif self.holdComp then
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if mOverComp == self.holdComp then
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local now = GetTime()
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if not self.holdRepeating then
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if now - self.holdTime > 500 then
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self.holdRepeating = true
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self.holdTime = now - 1
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end
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end
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if self.holdRepeating then
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if self.holdPauseTime then
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self.holdTime = self.holdTime + (now - self.holdPauseTime)
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self.holdPauseTime = nil
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end
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local time = now - self.holdTime
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if self.holdComp == "UP" then
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self:SetOffset(self.holdBase - m_ceil(time / 50) * self.step)
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elseif self.holdComp == "DOWN" then
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self:SetOffset(self.holdBase + m_ceil(time / 50) * self.step)
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end
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end
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elseif self.holdRepeating and not self.holdPauseTime then
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self.holdPauseTime = GetTime()
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end
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end
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-- Draw up/left button background
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if not enabled then
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SetDrawColor(0.33, 0.33, 0.33)
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elseif mOverComp == "UP" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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if dir == "HORIZONTAL" then
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DrawImage(nil, x, y, height, height)
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else
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DrawImage(nil, x, y, width, width)
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end
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if enabled and mOverComp == "UP" then
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SetDrawColor(0.33, 0.33, 0.33)
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else
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SetDrawColor(0, 0, 0)
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end
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if dir == "HORIZONTAL" then
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DrawImage(nil, x + 1, y + 1, height - 2, height - 2)
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else
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DrawImage(nil, x + 1, y + 1, width - 2, width - 2)
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end
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-- Draw up/left arrow
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if not enabled then
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SetDrawColor(0.33, 0.33, 0.33)
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elseif mOverComp == "UP" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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if dir == "HORIZONTAL" then
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main:DrawArrow(x + height/2, y + height/2, height/2, height/2, "LEFT")
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else
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main:DrawArrow(x + width/2, y + width/2, width/2, width/2, "UP")
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end
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-- Draw down/right button background
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if not enabled then
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SetDrawColor(0.33, 0.33, 0.33)
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elseif mOverComp == "DOWN" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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if dir == "HORIZONTAL" then
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DrawImage(nil, x + width - height, y, height, height)
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else
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DrawImage(nil, x, y + height - width, width, width)
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end
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if enabled and mOverComp == "DOWN" then
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SetDrawColor(0.33, 0.33, 0.33)
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else
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SetDrawColor(0, 0, 0)
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end
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if dir == "HORIZONTAL" then
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DrawImage(nil, x + width - height + 1, y + 1, height - 2, height - 2)
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else
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DrawImage(nil, x + 1, y + height - width + 1, width - 2, width - 2)
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end
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-- Draw down/right arrow
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if not enabled then
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SetDrawColor(0.33, 0.33, 0.33)
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elseif mOverComp == "DOWN" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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if dir == "HORIZONTAL" then
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main:DrawArrow(x + width - height/2, y + height/2, height/2, height/2, "RIGHT")
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else
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main:DrawArrow(x + width/2, y + height - width/2, width/2, width/2, "DOWN")
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end
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-- Draw slide background
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if not enabled then
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SetDrawColor(0.33, 0.33, 0.33)
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elseif self.dragging or mOverComp == "KNOB" or mOverComp == "SLIDEUP" or mOverComp == "SLIDEDOWN" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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if dir == "HORIZONTAL" then
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DrawImage(nil, x + height, y, width - height * 2, height)
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SetDrawColor(0, 0, 0)
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DrawImage(nil, x + height, y + 1, width - height * 2, height - 2)
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else
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DrawImage(nil, x, y + width, width, height - width * 2)
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SetDrawColor(0, 0, 0)
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DrawImage(nil, x + 1, y + width, width - 2, height - width * 2)
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end
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-- Draw knob
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if enabled then
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if self.dragging or mOverComp == "KNOB" then
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SetDrawColor(1, 1, 1)
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else
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SetDrawColor(0.5, 0.5, 0.5)
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end
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local knobPos = self:GetKnobPosForOffset()
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if dir == "HORIZONTAL" then
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DrawImage(nil, x + height + knobPos + 1, y + 2, self.knobDim - 2, height - 4)
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else
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DrawImage(nil, x + 2, y + width + knobPos + 1, width - 4, self.knobDim - 2)
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end
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end
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end
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function ScrollBarClass:OnKeyDown(key)
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if not self:IsShown() or not self:IsEnabled() or self:GetProperty("locked") then
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return
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end
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if key == "LEFTBUTTON" then
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local mOver, mOverComp = self:IsMouseOver()
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if not mOver then
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return
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end
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if mOverComp == "KNOB" then
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if not self.dragging then
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self.dragging = true
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local cursorX, cursorY = GetCursorPos()
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self.dragCX = cursorX
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self.dragCY = cursorY
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self.dragKnobPos = self:GetKnobPosForOffset()
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end
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elseif mOverComp == "UP" then
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self:Scroll(-1)
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self.holdComp = "UP"
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self.holdTime = GetTime()
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self.holdBase = self.offset
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elseif mOverComp == "DOWN" then
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self:Scroll(1)
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self.holdComp = "DOWN"
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self.holdTime = GetTime()
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self.holdBase = self.offset
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elseif mOverComp == "SLIDEUP" then
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self:SetOffsetFromKnobPos(self:GetKnobPosForOffset() - self.knobDim)
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elseif mOverComp == "SLIDEDOWN" then
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self:SetOffsetFromKnobPos(self:GetKnobPosForOffset() + self.knobDim)
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end
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end
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return self
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end
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function ScrollBarClass:OnKeyUp(key)
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if not self:IsShown() or not self:IsEnabled() or self:GetProperty("locked") then
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return
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end
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if key == "LEFTBUTTON" then
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if self.dragging then
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self.dragging = false
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local cursorX, cursorY = GetCursorPos()
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if self.dir == "HORIZONTAL" then
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self:SetOffsetFromKnobPos((cursorX - self.dragCX) + self.dragKnobPos)
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else
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self:SetOffsetFromKnobPos((cursorY - self.dragCY) + self.dragKnobPos)
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end
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elseif self.holdComp then
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self.holdComp = nil
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self.holdRepeating = nil
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self.holdPauseTime = nil
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end
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elseif key == "WHEELDOWN" then
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self:Scroll(1)
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elseif key == "WHEELUP" then
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self:Scroll(-1)
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end
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end
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