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XSelectionZoom
class com.xoetrope.svg.XSelectionZoomUsed for zooming to a region in an SVG image by selecting the region using the 'CTRL' key in conjunction with the mouse.
1. Example
public class Welcome extends XPage
{
protected XSvgImageMap svgImage;
public void pageCreated()
{
svgImage = (XSvgImageMap)findComponent( "imageMap" );
svgImage.setURL( ClassLoader.getSystemResource( "images/image1.svg" ));
XSelectionZoom zoomSelection = new XSelectionZoom( svgImage );
}
}
{
protected XSvgImageMap svgImage;
public void pageCreated()
{
svgImage = (XSvgImageMap)findComponent( "imageMap" );
svgImage.setURL( ClassLoader.getSystemResource( "images/image1.svg" ));
XSelectionZoom zoomSelection = new XSelectionZoom( svgImage );
}
}
The above example shows how the XSelectionZoom component can be added to an application.
2. Constructor
public XSelectionZoom( XSvgImageMap iMap )
Creates a new instance of XSelectionZoom taking the XSvgImageMap instance that will be zoomed as a parameter.
3. Methods
1. mousePressed
Initiates the zooming when the mouse is pressed in conjumction with the 'CTRL' key by displaying a box over the image, this box is used to select the region of the image that will be zoomed.
2. mouseDragged
Used to modify the width and height of the selection box using the mouse.
3. mouseReleased
Once the mouse is released the selected area is enlarged to fill the XSvgImageMap instance being used.
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