import pygame

class CLabel(pygame.sprite.Sprite):
    """ a basic label 
        properties: 
            font: font to use
            text: text to display
            fgColor: foreground color
            bgColor: background color
            center: position of label's center
            size: (width, height) of label
    """
    
    def __init__(self, fontName = "freesansbold.ttf"):
        pygame.sprite.Sprite.__init__(self)
        self.font = pygame.font.Font(fontName, 20)
        self.text = "Button"
        self.fgColor = ((0x00, 0x00, 0x00))
        self.bgColor = ((0xFF, 0xFF, 0xFF))
        self.center = (400, 100)
        self.size = (150, 30)

    def update(self):
        self.image = pygame.Surface(self.size)
        self.image.fill(self.bgColor)
        fontSurface = self.font.render(self.text, True, self.fgColor, self.bgColor)
        #center the text
        xPos = (self.image.get_width() - fontSurface.get_width())/2
        
        self.image.blit(fontSurface, (xPos, 0))
        self.rect = self.image.get_rect()
        self.rect.center = self.center