<?php

# -----------------------------------------------------------------------------
#
# The base class of all the text in the plots
#
# -----------------------------------------------------------------------------
#
# Copyright (C) 2004 Christian Eheim
#
# This file is part of TVEz (tvez.sourceforge.net).
#
# TVEz is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# TVEz is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with TVEz; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# -----------------------------------------------------------------------------
#
# Created on 02/01/2004 by Christian Eheim (hide@address.com)
#
# LAST MODIFIED:
# $Date: 2004/02/03 00:02:17 $
# $Revision: 1.2 $
# $Author: eheim $
#
# -----------------------------------------------------------------------------

class Text {
	var $_text;
	var $_font;
	var $_color;
	var $_left;
	var $_top;
	var $_up;
	var $_margin;

	var $_width;
	var $_height;

	function Text($text=null, $font=0) {
		$this->_text 	= $text;
		$this->_font	= $font;
		$this->_color	= array(0,0,0);
		$this->_left	= 0;
		$this->_top		= 0;
		$this->_up		= 0;
		$this->_margin	= 1;

		$this->set_width();
		$this->set_height();
	}
	# --------------------------------------------------------------------
	# Public members
	# --------------------------------------------------------------------
	function set($text) {
		$this->_text    = $text;
		$this->set_width();
		$this->set_height();
	}
	function set_font($font) {
		$this->_font    = $font;
		$this->set_width();
		$this->set_height();
	}
	function set_color($color) {
		$this->_color	= $color;
	}
	function set_pos($x,$y) {
		$this->_left	= round($x);
		$this->_top		= round($y);
	}
	function get_height() {
		return $this->_height;
	}
	function get_width() {
		return $this->_width;
	}
	function set_margin($margin) {
		$this->_margin = $margin;
		$this->set_width();
		$this->set_height();
	}
	function draw($image,$up=false) {
		$color = $image->_rgb->allocate_color($this->_color);
		if ($up) {
			ImageStringUp(	
				$image->_image,
				$this->_font,
				$this->_left+$this->_margin, $this->_top-$this->_margin,
				$this->_text,
				$color
			);
		} else {
			ImageString(	
				$image->_image,
				$this->_font,
				$this->_left+$this->_margin, $this->_top+$this->_margin,
				$this->_text,
				$color
			);
		}
	}
	# --------------------------------------------------------------------
	# Private members
	# --------------------------------------------------------------------
	function set_height() {
		$this->_height = ImageFontHeight( $this->_font ) + 2*$this->_margin;
	}
	function set_width() {
		$cw = ImageFontWidth( $this->_font );
		$len = strlen($this->_text);
		$this->_width = ($cw*$len) + 2*$this->_margin;
	}
}

?>