widgets/svg/SVGGraph.inc

<?php
/**
 * This file holds the base Graph class for doing
 * SVG graphs
 *
 * $Id: SVGGraph.inc,v 1.5 2003/03/04 22:15:18 hemna Exp $
 *
 * @author Walter A. Boring IV <waboring@buildabetterweb.com>
 * @package phpHtmlLib
 * @subpackage SVG
 */ 

/**
 * This is the base Graph class for doing
 * SVG graphs
 *
 * $Id: SVGGraph.inc,v 1.5 2003/03/04 22:15:18 hemna Exp $
 *
 * @author Walter A. Boring IV <waboring@buildabetterweb.com>
 * @package phpHtmlLib
 * @subpackage SVG
 */
class SVGGraph extends BaseWidget {


    /**
     * This array holds various
     * config options for this graph
     */
    var $_options = array("title" => "",
                          "title_style" => "font-size:20px;font-weight:bold;font-family: geneva, trebuchet ms",
                          "width" => 100,
                          "height" => 100,
                          "left_margin" => 5,
                          "right_margin" => 0,
                          "top_margin" => 20,
                          "bottom_margin" => 0,
                          "title_font_width" => 10,
                          "title_font_height" => 20,
                          "axis_font_width" => 5,
                          "axis_font_height" => 8,
                          "axis_label_font_width" => 12,
                          "axis_label_font_height" => 12);


    /**
     * Various calculated image properties
     *
     */
    var $_draw = array();


    function SVGGraph($title, $width, $height) {
        $this->set_title($title);
        $this->set_width($width);
        $this->set_height($height);
    }


    function render($indent_level=0, $output_debug=0) {
        //do any data parsing/munging/calculating
        $this->_prepare_data();

        $container = container();
        $container->add( $this->_build_titles() );
        $container->add( $this->_build_graph() );
        return $container->render($indent_level, $output_debug);
    }

    /**
     * This is a stub meant to provide a means
     * for doing any data parsing/munging
     * prior to actually building the svg
     * for the graph output.
     *
     */
    function _prepare_data() {
        return NULL;
    }


    /**
     * This is a stub for building the title(s)
     * for the graph
     *
     * @return Container
     */
    function _build_titles() {
        return $this->_build_title();
    }

    /**
     * This is a stub that the child class
     * must override to build the actual
     * graph
     *
     * @return Container
     */
    function _build_graph() {
        return NULL;
    }


    /****************************/
    /*    options functions     */
    /****************************/


    /**
     * This function is used to set
     * a particular option for the
     * graph
     *
     * @param string - the option name
     * @param mixed - the value
     */
    function set_option( $name, $value ) {
        $this->_options[$name] = $value;
    }

    /**
     * This function retuns the value
     * of 1 option
     *
     * @param string - the option name
     * @return mixed - the value
     */
    function get_option($name) {
        return $this->_options[$name];
    }

    /**
     * This returns the array of ALL
     * of the options for this graph
     *
     * @return array
     */
    function get_options() {
        return $this->_options;
    }


    /**
     * This method sets the title for
     * the graph
     *
     * @param string - the graph's title     
     */
    function set_title($title) {
        $this->_options["title"] = $title;
    }

    /**
     * This method sets the title for
     * the graph
     *
     * @param string - the graph's title     
     */
    function set_title_style($style) {
        $this->_options["title_style"] = $style;
    }

    /**
     * This method sets the width
     * of the graph
     *
     * @param int - the width
     */
    function set_width($width) {
        $this->_options["width"] = $width;
    }

    /**
     * This method sets the height
     * of the graph
     *
     * @param int - the height
     */
    function set_height($height) {
        $this->_options["height"] = $height;
    }
    
    /**
     * This method sets the width
     * of font in pixels for the 
     * Graph Title.   
     *
     * @param int - the width
     */
    function set_title_font_width($width) {
        $this->_options["title_font_width"] = $width;
    }

    /**
     * This method sets the height
     * of font in pixels for the 
     * Graph Title. 
     *
     * @param int - the height
     */
    function set_title_font_height($height) {
        $this->_options["title_font_height"] = $height;
    }


    /**
     * This method sets the width
     * of font used in calculating
     * the x and y axis point fonts.
     *
     * @param int - the width
     */
    function set_axis_font_width($width) {
        $this->_options["axis_font_width"] = $width;
    }

    /**
     * This method sets the height
     * of font used in calculating
     * the x and y axis point fonts.
     *
     * @param int - the height
     */
    function set_axis_font_height($height) {
        $this->_options["axis_font_height"] = $height;
    }


    /**
     * This function will format the axis label
     *
     * @param string - the number
     * @return string - the formated #
     */
    function format_label($number) {
        return sprintf("%.2f",$number);
    }


    /**
     * This method builds the text title area
     * that lives on top of the graph
     *
     * @return TEXTsvgtag
     */
    function _build_title() {
        $x = ($this->_draw["x2"] - $this->_draw["x1"])/2 -
            ((strlen($this->_options["title"])*$this->_options["title_font_width"])/4);
        $text = svg_text($x,20);
        $text->set_style($this->_options["title_style"]);
        $text->add( $this->_options["title"] );
        $text->set_collapse();
        return $text;
    }    
}
?>
1	jonen	1.1	<?php
2			/**
3			* This file holds the base Graph class for doing
4			* SVG graphs
5			*
6			* $Id: SVGGraph.inc,v 1.5 2003/03/04 22:15:18 hemna Exp $
7			*
8			* @author Walter A. Boring IV <waboring@buildabetterweb.com>
9			* @package phpHtmlLib
10			* @subpackage SVG
11			*/
12
13			/**
14			* This is the base Graph class for doing
15			* SVG graphs
16			*
17			* $Id: SVGGraph.inc,v 1.5 2003/03/04 22:15:18 hemna Exp $
18			*
19			* @author Walter A. Boring IV <waboring@buildabetterweb.com>
20			* @package phpHtmlLib
21			* @subpackage SVG
22			*/
23			class SVGGraph extends BaseWidget {
24
25
26			/**
27			* This array holds various
28			* config options for this graph
29			*/
30			var $_options = array("title" => "",
31			"title_style" => "font-size:20px;font-weight:bold;font-family: geneva, trebuchet ms",
32			"width" => 100,
33			"height" => 100,
34			"left_margin" => 5,
35			"right_margin" => 0,
36			"top_margin" => 20,
37			"bottom_margin" => 0,
38			"title_font_width" => 10,
39			"title_font_height" => 20,
40			"axis_font_width" => 5,
41			"axis_font_height" => 8,
42			"axis_label_font_width" => 12,
43			"axis_label_font_height" => 12);
44
45
46			/**
47			* Various calculated image properties
48			*
49			*/
50			var $_draw = array();
51
52
53			function SVGGraph($title, $width, $height) {
54			$this->set_title($title);
55			$this->set_width($width);
56			$this->set_height($height);
57			}
58
59
60			function render($indent_level=0, $output_debug=0) {
61			//do any data parsing/munging/calculating
62			$this->_prepare_data();
63
64			$container = container();
65			$container->add( $this->_build_titles() );
66			$container->add( $this->_build_graph() );
67			return $container->render($indent_level, $output_debug);
68			}
69
70			/**
71			* This is a stub meant to provide a means
72			* for doing any data parsing/munging
73			* prior to actually building the svg
74			* for the graph output.
75			*
76			*/
77			function _prepare_data() {
78			return NULL;
79			}
80
81
82			/**
83			* This is a stub for building the title(s)
84			* for the graph
85			*
86			* @return Container
87			*/
88			function _build_titles() {
89			return $this->_build_title();
90			}
91
92			/**
93			* This is a stub that the child class
94			* must override to build the actual
95			* graph
96			*
97			* @return Container
98			*/
99			function _build_graph() {
100			return NULL;
101			}
102
103
104			/****************************/
105			/* options functions */
106			/****************************/
107
108
109			/**
110			* This function is used to set
111			* a particular option for the
112			* graph
113			*
114			* @param string - the option name
115			* @param mixed - the value
116			*/
117			function set_option( $name, $value ) {
118			$this->_options[$name] = $value;
119			}
120
121			/**
122			* This function retuns the value
123			* of 1 option
124			*
125			* @param string - the option name
126			* @return mixed - the value
127			*/
128			function get_option($name) {
129			return $this->_options[$name];
130			}
131
132			/**
133			* This returns the array of ALL
134			* of the options for this graph
135			*
136			* @return array
137			*/
138			function get_options() {
139			return $this->_options;
140			}
141
142
143			/**
144			* This method sets the title for
145			* the graph
146			*
147			* @param string - the graph's title
148			*/
149			function set_title($title) {
150			$this->_options["title"] = $title;
151			}
152
153			/**
154			* This method sets the title for
155			* the graph
156			*
157			* @param string - the graph's title
158			*/
159			function set_title_style($style) {
160			$this->_options["title_style"] = $style;
161			}
162
163			/**
164			* This method sets the width
165			* of the graph
166			*
167			* @param int - the width
168			*/
169			function set_width($width) {
170			$this->_options["width"] = $width;
171			}
172
173			/**
174			* This method sets the height
175			* of the graph
176			*
177			* @param int - the height
178			*/
179			function set_height($height) {
180			$this->_options["height"] = $height;
181			}
182
183			/**
184			* This method sets the width
185			* of font in pixels for the
186			* Graph Title.
187			*
188			* @param int - the width
189			*/
190			function set_title_font_width($width) {
191			$this->_options["title_font_width"] = $width;
192			}
193
194			/**
195			* This method sets the height
196			* of font in pixels for the
197			* Graph Title.
198			*
199			* @param int - the height
200			*/
201			function set_title_font_height($height) {
202			$this->_options["title_font_height"] = $height;
203			}
204
205
206			/**
207			* This method sets the width
208			* of font used in calculating
209			* the x and y axis point fonts.
210			*
211			* @param int - the width
212			*/
213			function set_axis_font_width($width) {
214			$this->_options["axis_font_width"] = $width;
215			}
216
217			/**
218			* This method sets the height
219			* of font used in calculating
220			* the x and y axis point fonts.
221			*
222			* @param int - the height
223			*/
224			function set_axis_font_height($height) {
225			$this->_options["axis_font_height"] = $height;
226			}
227
228
229			/**
230			* This function will format the axis label
231			*
232			* @param string - the number
233			* @return string - the formated #
234			*/
235			function format_label($number) {
236			return sprintf("%.2f",$number);
237			}
238
239
240			/**
241			* This method builds the text title area
242			* that lives on top of the graph
243			*
244			* @return TEXTsvgtag
245			*/
246			function _build_title() {
247			$x = ($this->_draw["x2"] - $this->_draw["x1"])/2 -
248			((strlen($this->_options["title"])*$this->_options["title_font_width"])/4);
249			$text = svg_text($x,20);
250			$text->set_style($this->_options["title_style"]);
251			$text->add( $this->_options["title"] );
252			$text->set_collapse();
253			return $text;
254			}
255			}
256			?>
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