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annotate Libs/AceGUI-3.0/widgets/AceGUIWidget-Label.lua @ 0:c6ff7ba0e8f6

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Reasonably functional now. Cleaning up some stuff which might have to be reverted.
author Zerotorescue
date Thu, 07 Oct 2010 17:17:43 +0200
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Zerotorescue@0 1 --[[-----------------------------------------------------------------------------
Zerotorescue@0 2 Label Widget
Zerotorescue@0 3 Displays text and optionally an icon.
Zerotorescue@0 4 -------------------------------------------------------------------------------]]
Zerotorescue@0 5 local Type, Version = "Label", 21
Zerotorescue@0 6 local AceGUI = LibStub and LibStub("AceGUI-3.0", true)
Zerotorescue@0 7 if not AceGUI or (AceGUI:GetWidgetVersion(Type) or 0) >= Version then return end
Zerotorescue@0 8
Zerotorescue@0 9 -- Lua APIs
Zerotorescue@0 10 local max, select, pairs = math.max, select, pairs
Zerotorescue@0 11
Zerotorescue@0 12 -- WoW APIs
Zerotorescue@0 13 local CreateFrame, UIParent = CreateFrame, UIParent
Zerotorescue@0 14
Zerotorescue@0 15 -- Global vars/functions that we don't upvalue since they might get hooked, or upgraded
Zerotorescue@0 16 -- List them here for Mikk's FindGlobals script
Zerotorescue@0 17 -- GLOBALS: GameFontHighlightSmall
Zerotorescue@0 18
Zerotorescue@0 19 --[[-----------------------------------------------------------------------------
Zerotorescue@0 20 Support functions
Zerotorescue@0 21 -------------------------------------------------------------------------------]]
Zerotorescue@0 22
Zerotorescue@0 23 local function UpdateImageAnchor(self)
Zerotorescue@0 24 if self.resizing then return end
Zerotorescue@0 25 local frame = self.frame
Zerotorescue@0 26 local width = frame.width or frame:GetWidth() or 0
Zerotorescue@0 27 local image = self.image
Zerotorescue@0 28 local label = self.label
Zerotorescue@0 29 local height
Zerotorescue@0 30
Zerotorescue@0 31 label:ClearAllPoints()
Zerotorescue@0 32 image:ClearAllPoints()
Zerotorescue@0 33
Zerotorescue@0 34 if self.imageshown then
Zerotorescue@0 35 local imagewidth = image:GetWidth()
Zerotorescue@0 36 if (width - imagewidth) < 200 or (label:GetText() or "") == "" then
Zerotorescue@0 37 -- image goes on top centered when less than 200 width for the text, or if there is no text
Zerotorescue@0 38 image:SetPoint("TOP")
Zerotorescue@0 39 label:SetPoint("TOP", image, "BOTTOM")
Zerotorescue@0 40 label:SetPoint("LEFT")
Zerotorescue@0 41 label:SetWidth(width)
Zerotorescue@0 42 height = image:GetHeight() + label:GetHeight()
Zerotorescue@0 43 else
Zerotorescue@0 44 -- image on the left
Zerotorescue@0 45 image:SetPoint("TOPLEFT")
Zerotorescue@0 46 label:SetPoint("TOPLEFT", image, "TOPRIGHT", 4, 0)
Zerotorescue@0 47 label:SetWidth(width - imagewidth - 4)
Zerotorescue@0 48 height = max(image:GetHeight(), label:GetHeight())
Zerotorescue@0 49 end
Zerotorescue@0 50 else
Zerotorescue@0 51 -- no image shown
Zerotorescue@0 52 label:SetPoint("TOPLEFT")
Zerotorescue@0 53 label:SetWidth(width)
Zerotorescue@0 54 height = label:GetHeight()
Zerotorescue@0 55 end
Zerotorescue@0 56
Zerotorescue@0 57 self.resizing = true
Zerotorescue@0 58 frame:SetHeight(height)
Zerotorescue@0 59 frame.height = height
Zerotorescue@0 60 self.resizing = nil
Zerotorescue@0 61 end
Zerotorescue@0 62
Zerotorescue@0 63 --[[-----------------------------------------------------------------------------
Zerotorescue@0 64 Methods
Zerotorescue@0 65 -------------------------------------------------------------------------------]]
Zerotorescue@0 66 local methods = {
Zerotorescue@0 67 ["OnAcquire"] = function(self)
Zerotorescue@0 68 -- set the flag to stop constant size updates
Zerotorescue@0 69 self.resizing = true
Zerotorescue@0 70 -- height is set dynamically by the text and image size
Zerotorescue@0 71 self:SetWidth(200)
Zerotorescue@0 72 self:SetText()
Zerotorescue@0 73 self:SetImage(nil)
Zerotorescue@0 74 self:SetImageSize(16, 16)
Zerotorescue@0 75 self:SetColor()
Zerotorescue@0 76 self:SetFontObject()
Zerotorescue@0 77
Zerotorescue@0 78 -- reset the flag
Zerotorescue@0 79 self.resizing = nil
Zerotorescue@0 80 -- run the update explicitly
Zerotorescue@0 81 UpdateImageAnchor(self)
Zerotorescue@0 82 end,
Zerotorescue@0 83
Zerotorescue@0 84 -- ["OnRelease"] = nil,
Zerotorescue@0 85
Zerotorescue@0 86 ["OnWidthSet"] = function(self, width)
Zerotorescue@0 87 UpdateImageAnchor(self)
Zerotorescue@0 88 end,
Zerotorescue@0 89
Zerotorescue@0 90 ["SetText"] = function(self, text)
Zerotorescue@0 91 self.label:SetText(text)
Zerotorescue@0 92 UpdateImageAnchor(self)
Zerotorescue@0 93 end,
Zerotorescue@0 94
Zerotorescue@0 95 ["SetColor"] = function(self, r, g, b)
Zerotorescue@0 96 if not (r and g and b) then
Zerotorescue@0 97 r, g, b = 1, 1, 1
Zerotorescue@0 98 end
Zerotorescue@0 99 self.label:SetVertexColor(r, g, b)
Zerotorescue@0 100 end,
Zerotorescue@0 101
Zerotorescue@0 102 ["SetImage"] = function(self, path, ...)
Zerotorescue@0 103 local image = self.image
Zerotorescue@0 104 image:SetTexture(path)
Zerotorescue@0 105
Zerotorescue@0 106 if image:GetTexture() then
Zerotorescue@0 107 self.imageshown = true
Zerotorescue@0 108 local n = select("#", ...)
Zerotorescue@0 109 if n == 4 or n == 8 then
Zerotorescue@0 110 image:SetTexCoord(...)
Zerotorescue@0 111 else
Zerotorescue@0 112 image:SetTexCoord(0, 1, 0, 1)
Zerotorescue@0 113 end
Zerotorescue@0 114 else
Zerotorescue@0 115 self.imageshown = nil
Zerotorescue@0 116 end
Zerotorescue@0 117 UpdateImageAnchor(self)
Zerotorescue@0 118 end,
Zerotorescue@0 119
Zerotorescue@0 120 ["SetFont"] = function(self, font, height, flags)
Zerotorescue@0 121 self.label:SetFont(font, height, flags)
Zerotorescue@0 122 end,
Zerotorescue@0 123
Zerotorescue@0 124 ["SetFontObject"] = function(self, font)
Zerotorescue@0 125 self:SetFont((font or GameFontHighlightSmall):GetFont())
Zerotorescue@0 126 end,
Zerotorescue@0 127
Zerotorescue@0 128 ["SetImageSize"] = function(self, width, height)
Zerotorescue@0 129 self.image:SetWidth(width)
Zerotorescue@0 130 self.image:SetHeight(height)
Zerotorescue@0 131 UpdateImageAnchor(self)
Zerotorescue@0 132 end,
Zerotorescue@0 133 }
Zerotorescue@0 134
Zerotorescue@0 135 --[[-----------------------------------------------------------------------------
Zerotorescue@0 136 Constructor
Zerotorescue@0 137 -------------------------------------------------------------------------------]]
Zerotorescue@0 138 local function Constructor()
Zerotorescue@0 139 local frame = CreateFrame("Frame", nil, UIParent)
Zerotorescue@0 140 frame:Hide()
Zerotorescue@0 141
Zerotorescue@0 142 local label = frame:CreateFontString(nil, "BACKGROUND", "GameFontHighlightSmall")
Zerotorescue@0 143 label:SetJustifyH("LEFT")
Zerotorescue@0 144 label:SetJustifyV("TOP")
Zerotorescue@0 145
Zerotorescue@0 146 local image = frame:CreateTexture(nil, "BACKGROUND")
Zerotorescue@0 147
Zerotorescue@0 148 -- create widget
Zerotorescue@0 149 local widget = {
Zerotorescue@0 150 label = label,
Zerotorescue@0 151 image = image,
Zerotorescue@0 152 frame = frame,
Zerotorescue@0 153 type = Type
Zerotorescue@0 154 }
Zerotorescue@0 155 for method, func in pairs(methods) do
Zerotorescue@0 156 widget[method] = func
Zerotorescue@0 157 end
Zerotorescue@0 158
Zerotorescue@0 159 return AceGUI:RegisterAsWidget(widget)
Zerotorescue@0 160 end
Zerotorescue@0 161
Zerotorescue@0 162 AceGUI:RegisterWidgetType(Type, Constructor, Version)