WaypointEnhancer/Preview.lua at main · Anahkas/WaypointEnhancer · GitHub

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local _, WE = ...

local function SavePreviewPosition(frame)
    local point, _, relativePoint, x, y = frame:GetPoint(1)
    local previewDB = WE.GetDB().preview
    previewDB.point = point or "CENTER"
    previewDB.relativePoint = relativePoint or "CENTER"
    previewDB.x = WE.Round(x or 0)
    previewDB.y = WE.Round(y or 120)
end

function WE.CreatePreview()
    if WE.previewFrame then
        return WE.previewFrame
    end

    local frame = CreateFrame("Frame", "WaypointEnhancerPreviewFrame", UIParent)
    frame:SetSize(100, 100)
    frame:SetFrameStrata("DIALOG")
    frame:SetMovable(true)
    frame:SetClampedToScreen(true)
    frame:Hide()

    frame.Icon = frame:CreateTexture(nil, "BACKGROUND")
    frame.Icon:SetAtlas("Waypoint-MapPin-Tracked", true)
    frame.Icon:SetPoint("CENTER")

    frame.Arrow = frame:CreateTexture(nil, "BACKGROUND")
    frame.Arrow:SetAtlas("Navigation-Tracked-Arrow", true)
    frame.Arrow:SetPoint("CENTER", frame, "CENTER", 0, 60)
    frame.Arrow:Show()

    frame.DistanceText = frame:CreateFontString(nil, "OVERLAY", "GameFontNormal")
    frame.DistanceText:SetPoint("TOP", frame.Icon, "BOTTOM", 0, -8)
    frame.DistanceText:SetText("37 yds")

    frame:SetScript("OnMouseDown", function(self, button)
        if button == "LeftButton" and not WE.GetDB().preview.locked then
            self:StartMoving()
        end
    end)
    frame:SetScript("OnMouseUp", function(self, button)
        if button == "LeftButton" and not WE.GetDB().preview.locked then
            self:StopMovingOrSizing()
            SavePreviewPosition(self)
        end
    end)
    frame:SetScript("OnHide", function(self)
        self:StopMovingOrSizing()
    end)

    WE.previewFrame = frame
    WE.EnsureTargetRegions(frame)
    WE.ResetPreviewPosition()
    WE.SetPreviewLocked(WE.GetDB().preview.locked)
    return frame
end

function WE.ResetPreviewPosition()
    local frame = WE.previewFrame
    if not frame then
        return
    end

    local previewDB = WE.GetDB().preview
    frame:ClearAllPoints()
    frame:SetPoint(previewDB.point, UIParent, previewDB.relativePoint, previewDB.x, previewDB.y)
end

function WE.SetPreviewLocked(locked)
    local frame = WE.CreatePreview()
    WE.GetDB().preview.locked = not not locked
    frame:EnableMouse(not locked)
end

function WE.UpdatePreview()
    local frame = WE.CreatePreview()
    local db = WE.GetDB()

    frame:SetScale(db.frame.scale)
    frame:SetFrameStrata("DIALOG")
    frame.Arrow:Show()
    WE.ApplyIconToTarget(frame, true)
    WE.ApplyTextToTarget(frame, true)
    WE.ApplyArrowToTarget(frame, true)
    WE.SetPreviewLocked(db.preview.locked)
end

function WE.TogglePreview(forceShown)
    local frame = WE.CreatePreview()
    local show = forceShown
    if show == nil then
        show = not frame:IsShown()
    end

    if show then
        WE.UpdatePreview()
        frame:Show()
        WE.PlayPulse("PREVIEW")
    else
        frame:Hide()
    end
    return show
end