LoveFrames/objects/imagebutton.lua
2013-03-23 15:50:44 -04:00

330 lines
7.3 KiB
Lua

--[[------------------------------------------------
-- Love Frames - A GUI library for LOVE --
-- Copyright (c) 2013 Kenny Shields --
--]]------------------------------------------------
-- imagebutton class
local newobject = loveframes.NewObject("imagebutton", "loveframes_object_imagebutton", true)
--[[---------------------------------------------------------
- func: initialize()
- desc: initializes the object
--]]---------------------------------------------------------
function newobject:initialize()
self.type = "imagebutton"
self.text = "Image Button"
self.width = 50
self.height = 50
self.internal = false
self.down = false
self.clickable = true
self.enabled = true
self.image = nil
self.OnClick = nil
end
--[[---------------------------------------------------------
- func: update(deltatime)
- desc: updates the object
--]]---------------------------------------------------------
function newobject:update(dt)
local state = loveframes.state
local selfstate = self.state
if state ~= selfstate then
return
end
local visible = self.visible
local alwaysupdate = self.alwaysupdate
if not visible then
if not alwaysupdate then
return
end
end
self:CheckHover()
local hover = self.hover
local hoverobject = loveframes.hoverobject
local down = self.down
local parent = self.parent
local base = loveframes.base
local update = self.Update
if not hover then
self.down = false
else
if hoverobject == self then
self.down = true
end
end
if not down and hoverobject == self then
self.hover = true
end
-- move to parent if there is a parent
if parent ~= base then
self.x = self.parent.x + self.staticx
self.y = self.parent.y + self.staticy
end
if update then
update(self, dt)
end
end
--[[---------------------------------------------------------
- func: draw()
- desc: draws the object
--]]---------------------------------------------------------
function newobject:draw()
local state = loveframes.state
local selfstate = self.state
if state ~= selfstate then
return
end
local visible = self.visible
if not visible then
return
end
local skins = loveframes.skins.available
local skinindex = loveframes.config["ACTIVESKIN"]
local defaultskin = loveframes.config["DEFAULTSKIN"]
local selfskin = self.skin
local skin = skins[selfskin] or skins[skinindex]
local drawfunc = skin.DrawImageButton or skins[defaultskin].DrawImageButton
local draw = self.Draw
local drawcount = loveframes.drawcount
-- set the object's draw order
self:SetDrawOrder()
if draw then
draw(self)
else
drawfunc(self)
end
end
--[[---------------------------------------------------------
- func: mousepressed(x, y, button)
- desc: called when the player presses a mouse button
--]]---------------------------------------------------------
function newobject:mousepressed(x, y, button)
local state = loveframes.state
local selfstate = self.state
if state ~= selfstate then
return
end
local visible = self.visible
if not visible then
return
end
local hover = self.hover
if hover and button == "l" then
local baseparent = self:GetBaseParent()
if baseparent and baseparent.type == "frame" then
baseparent:MakeTop()
end
self.down = true
loveframes.hoverobject = self
end
end
--[[---------------------------------------------------------
- func: mousereleased(x, y, button)
- desc: called when the player releases a mouse button
--]]---------------------------------------------------------
function newobject:mousereleased(x, y, button)
local state = loveframes.state
local selfstate = self.state
if state ~= selfstate then
return
end
local visible = self.visible
if not visible then
return
end
local hover = self.hover
local down = self.down
local clickable = self.clickable
local enabled = self.enabled
local onclick = self.OnClick
if hover and down and clickable and button == "l" then
if enabled then
if onclick then
onclick(self, x, y)
end
end
end
self.down = false
end
--[[---------------------------------------------------------
- func: SetText(text)
- desc: sets the object's text
--]]---------------------------------------------------------
function newobject:SetText(text)
self.text = text
end
--[[---------------------------------------------------------
- func: GetText()
- desc: gets the object's text
--]]---------------------------------------------------------
function newobject:GetText()
return self.text
end
--[[---------------------------------------------------------
- func: SetClickable(bool)
- desc: sets whether the object can be clicked or not
--]]---------------------------------------------------------
function newobject:SetClickable(bool)
self.clickable = bool
end
--[[---------------------------------------------------------
- func: GetClickable(bool)
- desc: gets whether the object can be clicked or not
--]]---------------------------------------------------------
function newobject:GetClickable()
return self.clickable
end
--[[---------------------------------------------------------
- func: SetClickable(bool)
- desc: sets whether the object is enabled or not
--]]---------------------------------------------------------
function newobject:SetEnabled(bool)
self.enabled = bool
end
--[[---------------------------------------------------------
- func: GetEnabled()
- desc: gets whether the object is enabled or not
--]]---------------------------------------------------------
function newobject:GetEnabled()
return self.enabled
end
--[[---------------------------------------------------------
- func: SetImage(image)
- desc: sets the object's image
--]]---------------------------------------------------------
function newobject:SetImage(image)
if type(image) == "string" then
self.image = love.graphics.newImage(image)
else
self.image = image
end
end
--[[---------------------------------------------------------
- func: GetImage()
- desc: gets whether the object is enabled or not
--]]---------------------------------------------------------
function newobject:GetImage()
return self.image
end
--[[---------------------------------------------------------
- func: SizeToImage()
- desc: makes the object the same size as its image
--]]---------------------------------------------------------
function newobject:SizeToImage()
local image = self.image
if image then
self.width = image:getWidth()
self.height = image:getHeight()
end
end
--[[---------------------------------------------------------
- func: GetImageSize()
- desc: gets the size of the object's image
--]]---------------------------------------------------------
function newobject:GetImageSize()
local image = self.image
if image then
return image:getWidth(), image:getHeight()
end
end
--[[---------------------------------------------------------
- func: GetImageWidth()
- desc: gets the width of the object's image
--]]---------------------------------------------------------
function newobject:GetImageWidth()
local image = self.image
if image then
return image:getWidth()
end
end
--[[---------------------------------------------------------
- func: GetImageWidth()
- desc: gets the height of the object's image
--]]---------------------------------------------------------
function newobject:GetImageHeight()
local image = self.image
if image then
return image:getHeight()
end
end