com.izforge.izpack.installer.container.provider.IconsProvider Maven / Gradle / Ivy
package com.izforge.izpack.installer.container.provider;
import java.io.InputStream;
import java.net.URL;
import java.util.logging.Logger;
import javax.swing.ImageIcon;
import javax.swing.UIManager;
import org.picocontainer.injectors.Provider;
import com.izforge.izpack.api.adaptator.IXMLElement;
import com.izforge.izpack.api.adaptator.IXMLParser;
import com.izforge.izpack.api.adaptator.impl.XMLParser;
import com.izforge.izpack.api.resource.Resources;
import com.izforge.izpack.gui.IconsDatabase;
import com.izforge.izpack.installer.gui.InstallerFrame;
/**
* Provide icons database
*/
public class IconsProvider implements Provider
{
private static final Logger logger = Logger.getLogger(IconsProvider.class.getName());
public IconsDatabase provide(Resources resources) throws Exception
{
IconsDatabase icons = new IconsDatabase();
loadIcons(icons);
loadCustomIcons(icons, resources);
return icons;
}
/**
* Loads the icons.
*
* @param iconsDatabase
* @throws Exception Description of the Exception
*/
private void loadIcons(IconsDatabase iconsDatabase) throws Exception
{
// Initialisations
InputStream inXML = getClass().
getResourceAsStream("icons.xml");
parseXML(inXML, iconsDatabase);
}
/**
* Loads custom icons into the installer.
*
* @param icons the icons database
* @param resources used to load the icons
* @throws Exception
*/
private void loadCustomIcons(IconsDatabase icons, Resources resources) throws Exception
{
// We try to load and add a custom langpack.
InputStream inXML = null;
try
{
inXML = resources.getInputStream(Resources.CUSTOM_ICONS_RESOURCE_NAME);
}
catch (Throwable exception)
{
logger.warning("Resource " + Resources.CUSTOM_ICONS_RESOURCE_NAME
+ " not defined. No custom icons available");
return;
}
logger.fine("Custom icons available");
parseXML(inXML, icons);
}
/**
* parse the xml and fill in the db
*
* @param inXML
* @param icons
*/
private void parseXML(InputStream inXML, IconsDatabase icons)
{
ImageIcon img;
// Initialises the parser
IXMLParser parser = new XMLParser(false);
// We get the data
IXMLElement data = parser.parse(inXML);
// We load the icons
for (IXMLElement icon : data.getChildrenNamed("icon"))
{
img = loadIcon(icon);
if (img != null)
{
icons.put(icon.getAttribute("id"), img);
}
}
// We load the Swing-specific icons
for (IXMLElement icon : data.getChildrenNamed("sysicon"))
{
img = loadIcon(icon);
if (img != null)
{
UIManager.put(icon.getAttribute("id"), img);
}
}
}
/**
* Loads an icon declared in an XML file.
*
* @param icon
* the XML element that declares the icon
* @return the icon or null if it does not exist
*/
private ImageIcon loadIcon(IXMLElement icon)
{
ImageIcon img = null;
String id = icon.getAttribute("id");
String path = icon.getAttribute("res");
URL url = InstallerFrame.class.getResource(path);
if (url == null)
{
logger.warning("Icon with id '" + id + "': file '" + path + "' not found");
}
else
{
img = new ImageIcon(url);
logger.fine("Icon with id '" + id + "' found");
}
return img;
}
}