content: package tim.prune.gui.map;
  
  import java.io.File;
  import java.net.MalformedURLException;
  
  import javax.swing.ImageIcon;
  
  import tim.prune.config.Config;
  import tim.prune.gui.IconManager;
  
  class WaypointIcons
  {
  	/** @return an icon definition to use for waypoints based on the current config */
  	static WpIconDefinition getDefinition(Config inConfig, IconManager inIconManager)
  	{
  		if (inConfig.getConfigBoolean(Config.KEY_WAYPOINT_ICON_CUSTOM))
  		{
  			final String iconPath = inConfig.getConfigString(Config.KEY_WAYPOINT_ICON_PATH);
  			WpIconDefinition iconDef = getCustomIcon(iconPath);
  			if (iconDef != null) {
  				return iconDef;
  			}
  		}
  		// No valid custom icon, so find out the built-in type
  		final int wpType = inConfig.getConfigInt(Config.KEY_WAYPOINT_ICONS);
  		if (wpType == WpIconLibrary.WAYPT_DEFAULT) {
  			return null;
  		}
  		final int wpSize = inConfig.getConfigInt(Config.KEY_WAYPOINT_ICON_SIZE);
  		return WpIconLibrary.getIconDefinition(wpType, wpSize, inIconManager);
  	}
  
  	/** @return an icon definition from the given file path, or null */
  	private static WpIconDefinition getCustomIcon(String inIconPath)
  	{
  		if (inIconPath == null || inIconPath.isEmpty()) {
  			return null;
  		}
  		File iconFile = new File(inIconPath);
  		if (!iconFile.exists() || !iconFile.isFile() || !iconFile.canRead()) {
  			return null;
  		}
  		try
  		{
  			ImageIcon icon = new ImageIcon(iconFile.toURI().toURL());
  			WpIconDefinition iconDef = new WpIconDefinition(icon);
  			// If icon is too small or too big, we ignore it and use a built-in one instead
  			if (iconDef.getXOffset() > 2 && iconDef.getXOffset() <= 64
  				&& iconDef.getYOffset() > 2 && iconDef.getYOffset() <= 64)
  			{
  				return iconDef;
  			}
  		} catch (MalformedURLException ignored) {}
  		return null;
  	}
  }
  