<?xml version="1.0" encoding="UTF-8"?>

<sample>

  <name>shapes</name>
  <title>Shapes Sample</title>
  <description>Shows how various graphic elements could be used inside report templates.</description>

  <mainFeature ref="shapes"/>
  
  <!-- shapes -->
  
  <feature name="shapes" title="Lines, Rectangles, Ellipses (Shapes)">
    <description>
How to use shape elements such as rectangles, ellipses and lines.
    </description>
    <since>0.1.0</since>
    <documentedBy>
    	<name>Sanda Zaharia</name>
    	<email>shertage@users.sourceforge.net</email>
    </documentedBy>
    <content>
    <b>Common graphic elements</b>
    <br/>
    <br/>
Shapes are predefined geometric objects, very useful when drawing diagrams, flowcharts and other schematic representations. 
There are a lot of shapes: lines, rectangles, arrows, callouts, stars, etc. All of them can be obtained from a set of line shapes, taking into account that a line shape can be either straight or curved.
<br/>
JasperReports provides support for lines, rectangles and ellipses. All shape objects in JasperReports are graphic report elements which implement both <api href="net/sf/jasperreports/engine/JRCommonElement.html">JRCommonElement</api> and <api href="net/sf/jasperreports/engine/JRGraphicElement.html">JRGraphicElement</api> interfaces. 
<br/>
By default any common element is characterized by its width, height, unique key identifier, visualization mode, foreground and background colors. Methods exposed by the <api href="net/sf/jasperreports/engine/JRCommonElement.html">JRCommonElement</api> are:
<ul>
<li><code>public int getWidth();</code></li>
<li><code>public int getHeight();</code></li>
<li><code>public String getKey();</code></li>
<li><code>public ModeEnum getModeValue();</code></li>
<li><code>public ModeEnum getOwnModeValue();</code></li>
<li><code>public void setMode(ModeEnum mode);</code></li>
<li><code>public Color getForecolor();</code></li>
<li><code>public Color getOwnForecolor();</code></li>
<li><code>public void setForecolor(Color forecolor);</code></li>
<li><code>public Color getBackcolor();</code></li>
<li><code>public Color getOwnBackcolor();</code></li>
<li><code>public void setBackcolor(Color backcolor);</code></li>
</ul>

<br/>
The <api href="net/sf/jasperreports/engine/JRGraphicElement.html">JRGraphicElement</api> interface extends the <api href="net/sf/jasperreports/engine/JRCommonGraphicElement.html">JRCommonGraphicElement</api>. By default any common graphic element (or shape) should have a contour line and a fill type (ie solid, no fill, etc). 
<br/>
Methods which should be implemented from the <code>JRCommonGraphicElement</code> interface are:
<ul>
<li><code>public JRPen getLinePen();</code></li>
<li><code>public FillEnum getFillValue();</code></li>
<li><code>public FillEnum getOwnFillValue();</code></li>
<li><code>public void setFill(FillEnum fillEnum);</code></li>
</ul>
<b>The line shape</b>
<br/>
<br/>
Derived from common graphic elements, a line is an one-dimensional shape which is supposed to have a given direction. Any line element should implement the <api href="net/sf/jasperreports/engine/JRLine.html">JRLine</api> interface which exposes the following methods:
<ul>
<li><code>public LineDirectionEnum getDirectionValue();</code></li>
<li><code>public void setDirection(LineDirectionEnum lineDirectionEnum);</code></li>
</ul>
Possible line directions are: top-down or bottom-up. The default direction is top-down.
<br/>
In the .jrxml file a line element is represented as follows:
<pre><![CDATA[
  <line direction="BottomUp">
    <reportElement x="0" y="150" width="200" height="40" forecolor="#ff00"/>
    <graphicElement>
      <pen lineWidth="4"/>
    </graphicElement>
  </line>
]]></pre>
The graphicElement's fill attribute is not specified because at the moment only the solid fill type is taken into account and, it is considered as default value.
<br/>
<br/>
<b>The rectangle shape</b>
<br/>
<br/>
A rectangle is a bi-dimensional shape having either rounded corners or no-rounded ones. The radius element, if set, indicates how the rectangle's corners should be rounded. By default corners are not rounded in a rectangle.
<br/>
Any rectangle shape implements the <api href="net/sf/jasperreports/engine/JRRectangle.html">JRRectangle</api> interface, which extends the <api href="net/sf/jasperreports/engine/JRCommonRectangle.html">JRCommonRectangle</api>.
The <api href="net/sf/jasperreports/engine/JRCommonRectangle.html">JRCommonRectangle</api> exposes the following methods:
<ul>
<li><code>public int getRadius();</code></li>
<li><code>public Integer getOwnRadius();</code></li>
<li><code>public void setRadius(int radius);</code></li>
<li><code>public void setRadius(Integer radius);</code></li>
</ul>
In the .jrxml file a rectangle element is represented as follows:
<pre><![CDATA[
  <rectangle radius="15">
    <reportElement x="0" y="350" width="200" height="40" backcolor="#ffff00"/>
    <graphicElement>
      <pen lineWidth="2"/>
    </graphicElement>
  </rectangle>
]]></pre>
If corners are not rounded, then the <code>radius</code> attribute is not necessary.
<br/>
<br/>
<b>The ellipse shape</b>
<br/>
<br/>
An ellipse is a closed bi-dimensional curved shape characterized by 2 semiaxis: the semimajor and the semiminor axis. When the semimajor axis equals the semiminor axis, the ellipse becomes a circle.
<br/>
Any ellipse shape implements the <api href="net/sf/jasperreports/engine/JREllipse.html">JREllipse</api> interface, which extends the <api href="net/sf/jasperreports/engine/JRGraphicElement.html">JRGraphicElement</api>.
<br/>
No supplementary methods are needed, because both ellipse's semiaxis can be determined from the common element's <code>width</code> and <code>height</code> attributes.
<br/>
In the .jrxml file an ellipse element is represented as follows:
<pre><![CDATA[
  <ellipse>
    <reportElement x="0" y="600" width="200" height="40" forecolor="#ff0000" backcolor="#ffff99"/>
    <graphicElement>
      <pen lineWidth="2"/>
    </graphicElement>
  </ellipse>
]]></pre>
In order to figure out more on shapes behavior, just test this sample by running from the command line the <code>ant test view</code> command. 
It will generate all supported document types containing the sample report in the /build/reports directory, and then the generated report will be open with JasperReports internal viewer.
    </content>
  </feature>

</sample>
