-----------------------------
-- Levak ©2011 --------------
-- http://levak.free.fr/ ----
-- levak92@gmail.com --------
-----------------------------

------ Buttons

Button = {}
Button.__index = Button

function Button.create(x, y, w, h, scale, fun, text, icon, child)
	local btn = {}
	setmetatable(btn, Button)
	btn.x, btn.y = x * normal + navPos.x, y * normal + navPos.y
	btn.w, btn.h = (w - 1) * normal, (h - 1) * normal
	btn.s = scale
	btn.fun = fun
	btn.text = text
	if icon then
		if text then
			btn.icon = image.copy(icon, h * normal, h * normal)
		else
			btn.icon = image.copy(icon, w * normal, h * normal)
		end
	end
	btn.child = child
	return btn
end

function Button:isActive(x, y)
	return
			 (x >= self.x - self.s/2)
		and (x <= self.x + self.s/2 + self.w )
		and (y >= self.y - self.s/2)
		and (y <= self.y + self.s/2 + self.h)
end

function Button:paint(gc, bold)
	if not self.text then
		if not self.icon then
			gc:setColorRGB(0, 0, 0)
			gc:fillRect(self.x - self.s/2, self.y - self.s/2, self.w + self.s, self.h + self.s)
		else
			gc:drawImage(self.icon, self.x - self.s/2, self.y - self.s/2)
		end
	else
		gc:setColorRGB(255, 255, 255)
		if bold then
			gc:setPen("medium", "smooth")		
		else
			gc:setPen("thin", "smooth")
		end
		gc:fillRect(self.x - self.s/2, self.y - self.s/2, self.w + self.s, self.h + self.s)
		gc:setColorRGB(0, 0, 0)
		gc:drawRect(self.x - self.s/2, self.y - self.s/2, self.w + self.s, self.h + self.s)		
		
		if self.icon then
			gc:setFont("sansserif", "r", fxxsmall)
			gc:drawImage(self.icon, self.x - self.s/2, self.y - self.s/2)
			gc:setColorRGB(0, 0, 0)
			gc:drawString(self.text, self.x + image.width(self.icon)/2 + 5, self.y, "middle")
			if self.child then gc:drawImage(image.copy(nextButton, (self.h+normal)/3, self.h+normal), self.x + self.w, self.y - self.h) end
		else
			gc:setFont("sansserif", "r", math.max(math.min((self.w)/string.len(self.text), 255), 6))
			local strlen = gc:getStringWidth(self.text)
			gc:drawString(self.text, self.x + self.w/2 - strlen/2, self.y, "middle")
		end
	end
end