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Grichelde/Libs/AceGUI-3.0/widgets/AceGUIWidget-Label.lua

180 lines
4.7 KiB
Lua

--[[-----------------------------------------------------------------------------
Label Widget
Displays text and optionally an icon.
-------------------------------------------------------------------------------]]
local Type, Version = "Label", 28
local AceGUI = LibStub and LibStub("AceGUI-3.0", true)
if not AceGUI or (AceGUI:GetWidgetVersion(Type) or 0) >= Version then return end
-- Lua APIs
local max, select, pairs = math.max, select, pairs
-- WoW APIs
local CreateFrame, UIParent = CreateFrame, UIParent
--[[-----------------------------------------------------------------------------
Support functions
-------------------------------------------------------------------------------]]
local function UpdateImageAnchor(self)
if self.resizing then return end
local frame = self.frame
local width = frame.width or frame:GetWidth() or 0
local image = self.image
local label = self.label
local height
label:ClearAllPoints()
image:ClearAllPoints()
if self.imageshown then
local imagewidth = image:GetWidth()
if (width - imagewidth) < 200 or (label:GetText() or "") == "" then
-- image goes on top centered when less than 200 width for the text, or if there is no text
image:SetPoint("TOP")
label:SetPoint("TOP", image, "BOTTOM")
label:SetPoint("LEFT")
label:SetWidth(width)
height = image:GetHeight() + label:GetStringHeight()
else
-- image on the left
image:SetPoint("TOPLEFT")
if image:GetHeight() > label:GetStringHeight() then
label:SetPoint("LEFT", image, "RIGHT", 4, 0)
else
label:SetPoint("TOPLEFT", image, "TOPRIGHT", 4, 0)
end
label:SetWidth(width - imagewidth - 4)
height = max(image:GetHeight(), label:GetStringHeight())
end
else
-- no image shown
label:SetPoint("TOPLEFT")
label:SetWidth(width)
height = label:GetStringHeight()
end
-- avoid zero-height labels, since they can used as spacers
if not height or height == 0 then
height = 1
end
self.resizing = true
frame:SetHeight(height)
frame.height = height
self.resizing = nil
end
--[[-----------------------------------------------------------------------------
Methods
-------------------------------------------------------------------------------]]
local methods = {
["OnAcquire"] = function(self)
-- set the flag to stop constant size updates
self.resizing = true
-- height is set dynamically by the text and image size
self:SetWidth(200)
self:SetText()
self:SetImage(nil)
self:SetImageSize(16, 16)
self:SetColor()
self:SetFontObject()
self:SetJustifyH("LEFT")
self:SetJustifyV("TOP")
-- reset the flag
self.resizing = nil
-- run the update explicitly
UpdateImageAnchor(self)
end,
-- ["OnRelease"] = nil,
["OnWidthSet"] = function(self, width)
UpdateImageAnchor(self)
end,
["SetText"] = function(self, text)
self.label:SetText(text)
UpdateImageAnchor(self)
end,
["SetColor"] = function(self, r, g, b)
if not (r and g and b) then
r, g, b = 1, 1, 1
end
self.label:SetVertexColor(r, g, b)
end,
["SetImage"] = function(self, path, ...)
local image = self.image
image:SetTexture(path)
if image:GetTexture() then
self.imageshown = true
local n = select("#", ...)
if n == 4 or n == 8 then
image:SetTexCoord(...)
else
image:SetTexCoord(0, 1, 0, 1)
end
else
self.imageshown = nil
end
UpdateImageAnchor(self)
end,
["SetFont"] = function(self, font, height, flags)
if not self.fontObject then
self.fontObject = CreateFont("AceGUI30LabelFont" .. AceGUI:GetNextWidgetNum(Type))
end
self.fontObject:SetFont(font, height, flags)
self:SetFontObject(self.fontObject)
end,
["SetFontObject"] = function(self, font)
self.label:SetFontObject(font or GameFontHighlightSmall)
UpdateImageAnchor(self)
end,
["SetImageSize"] = function(self, width, height)
self.image:SetWidth(width)
self.image:SetHeight(height)
UpdateImageAnchor(self)
end,
["SetJustifyH"] = function(self, justifyH)
self.label:SetJustifyH(justifyH)
end,
["SetJustifyV"] = function(self, justifyV)
self.label:SetJustifyV(justifyV)
end,
}
--[[-----------------------------------------------------------------------------
Constructor
-------------------------------------------------------------------------------]]
local function Constructor()
local frame = CreateFrame("Frame", nil, UIParent)
frame:Hide()
local label = frame:CreateFontString(nil, "BACKGROUND", "GameFontHighlightSmall")
local image = frame:CreateTexture(nil, "BACKGROUND")
-- create widget
local widget = {
label = label,
image = image,
frame = frame,
type = Type
}
for method, func in pairs(methods) do
widget[method] = func
end
return AceGUI:RegisterAsWidget(widget)
end
AceGUI:RegisterWidgetType(Type, Constructor, Version)