/// <summary>
/// Creates a new MapCSS interpreter.
/// </summary>
/// <param name="mapCSSFile"></param>
/// <param name="imageSource"></param>
public MapCSSInterpreter(MapCSSFile mapCSSFile, IMapCSSImageSource imageSource)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
_mapCSSFile = mapCSSFile;
_mapCSSImageSource = imageSource;
_geometryInterpreter = GeometryInterpreter.DefaultInterpreter;
}
/// <summary>
/// Creates and parses mapcss from a stream.
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static MapCSSFile FromStream(Stream stream)
{
// get the text from the embedded test file.
var reader = new StreamReader(stream);
string s = reader.ReadToEnd();
return(MapCSSFile.FromString(s));
}
/// <summary>
/// Parses the result of the MapCSSParser into the MapCSSFile domain object.
/// </summary>
/// <param name="treeObject"></param>
/// <returns></returns>
public static MapCSSFile Parse(object treeObject)
{
var tree = (treeObject as Antlr.Runtime.Tree.CommonTree);
if (tree == null)
{
throw new ArgumentOutOfRangeException("treeObject",
"Incorrect type: Antlr.Runtime.Tree.CommonTree expected!");
}
if (tree.ChildCount > 0)
{
// create the mapcss file.
var file = new MapCSSFile();
// loop over all children.
foreach (CommonTree child in tree.Children)
{
if (child.Text == "RULE")
{
if (child.ChildCount == 2 &&
child.Children[0].Text == "SIMPLE_SELECTOR" &&
child.Children[0].ChildCount == 1 &&
child.Children[0] is CommonTree &&
(child.Children[0] as CommonTree).Children[0].Text == "canvas")
{ // this child represents the canvas rule.
MapCSSDomainParser.ParseCanvasRule(file, child as CommonTree);
}
else if (child.ChildCount == 2 &&
child.Children[0].Text == "SIMPLE_SELECTOR" &&
child.Children[0].ChildCount == 1 &&
child.Children[0] is CommonTree &&
(child.Children[0] as CommonTree).Children[0].Text == "meta")
{ // this child represents the canvas rule.
MapCSSDomainParser.ParseMetaRule(file, child as CommonTree);
}
else
{ // this child can only be a regular rule.
Rule rule =
MapCSSDomainParser.ParseRule(child as CommonTree);
file.Rules.Add(rule);
}
}
}
return file;
}
return null;
}
/// <summary>
/// Creates a new MapCSS interpreter from a string.
/// </summary>
/// <param name="css"></param>
/// <param name="imageSource"></param>
/// <param name="geometryInterpreter"></param>
public MapCSSInterpreter(string css, IMapCSSImageSource imageSource, GeometryInterpreter geometryInterpreter)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
if (geometryInterpreter == null) throw new ArgumentNullException("geometryInterpreter");
_mapCSSFile = MapCSSFile.FromString(css);
_mapCSSImageSource = imageSource;
_geometryInterpreter = geometryInterpreter;
this.PrepareForProcessing();
}
/// <summary>
/// Creates a new MapCSS interpreter from a stream.
/// </summary>
/// <param name="stream"></param>
/// <param name="imageSource"></param>
public MapCSSInterpreter(Stream stream, IMapCSSImageSource imageSource)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
_mapCSSFile = MapCSSFile.FromStream(stream);
_mapCSSImageSource = imageSource;
_geometryInterpreter = GeometryInterpreter.DefaultInterpreter;
this.PrepareForProcessing();
}
/// <summary>
/// Creates a new MapCSS interpreter from a stream.
/// </summary>
/// <param name="stream"></param>
/// <param name="imageSource"></param>
/// <param name="geometryInterpreter"></param>
public MapCSSInterpreter(Stream stream, IMapCSSImageSource imageSource, GeometryInterpreter geometryInterpreter)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
if (geometryInterpreter == null) throw new ArgumentNullException("geometryInterpreter");
_mapCSSFile = MapCSSFile.FromStream(stream);
_mapCSSImageSource = imageSource;
_geometryInterpreter = geometryInterpreter;
}
/// <summary>
/// Creates a new MapCSS interpreter.
/// </summary>
/// <param name="mapCSSFile"></param>
/// <param name="imageSource"></param>
/// <param name="geometryInterpreter"></param>
public MapCSSInterpreter(MapCSSFile mapCSSFile, IMapCSSImageSource imageSource, GeometryInterpreter geometryInterpreter)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
if (geometryInterpreter == null) throw new ArgumentNullException("geometryInterpreter");
_mapCSSFile = mapCSSFile;
_mapCSSImageSource = imageSource;
_geometryInterpreter = geometryInterpreter;
}
/// <summary>
/// Creates a new MapCSS interpreter from a string.
/// </summary>
/// <param name="css"></param>
/// <param name="imageSource"></param>
public MapCSSInterpreter(string css, IMapCSSImageSource imageSource)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
_mapCSSFile = MapCSSFile.FromString(css);
_mapCSSImageSource = imageSource;
_geometryInterpreter = GeometryInterpreter.DefaultInterpreter;
}
/// <summary>
/// Creates a new MapCSS interpreter.
/// </summary>
/// <param name="mapCSSFile"></param>
/// <param name="imageSource"></param>
public MapCSSInterpreter(MapCSSFile mapCSSFile, IMapCSSImageSource imageSource)
{
if (imageSource == null) throw new ArgumentNullException("imageSource");
_mapCSSFile = mapCSSFile;
_mapCSSImageSource = imageSource;
_geometryInterpreter = FeatureInterpreter.DefaultInterpreter;
this.PrepareForProcessing();
}
/// <summary>
/// Parses the canvas rule.
/// </summary>
/// <param name="ruleTree"></param>
/// <returns></returns>
private static void ParseCanvasRule(MapCSSFile file, CommonTree ruleTree)
{
if (ruleTree.ChildCount >= 2 &&
ruleTree.Children[1] != null)
{ // loop over all declaration rules in canvas.
foreach (CommonTree rule in (ruleTree.Children[1] as CommonTree).Children)
{
if (rule.Text == "DECLARATION" &&
rule.Children != null &&
rule.Children.Count > 0)
{ // parse the decalaration.
// support both JOSM's background-color and fill-color.
if (rule.Children[0].Text == "background-color")
{ // parse the background color.
file.CanvasFillColor = MapCSSDomainParser.ParseColor(rule.Children[1] as CommonTree);
}
else if (rule.Children[0].Text == "fill-color")
{ // parse the background color.
file.CanvasFillColor = MapCSSDomainParser.ParseColor(rule.Children[1] as CommonTree);
}
else if (rule.Children[0].Text == "default-points")
{ // parse the default points-setting.
file.DefaultPoints = false;
if(rule.Children[1].Text == "true")
{
file.DefaultPoints = true;
}
}
else if (rule.Children[0].Text == "default-lines")
{ // parse the default lines-setting.
file.DefaultLines = false;
if (rule.Children[1].Text == "true")
{
file.DefaultLines = true;
}
}
}
}
}
}
/// <summary>
/// Parses the meta rule.
/// </summary>
/// <param name="ruleTree"></param>
/// <returns></returns>
private static void ParseMetaRule(MapCSSFile file, CommonTree ruleTree)
{
if (ruleTree.ChildCount >= 2 &&
ruleTree.Children[1] != null)
{ // loop over all declaration rules in canvas.
foreach (CommonTree rule in (ruleTree.Children[1] as CommonTree).Children)
{
if (rule.Text == "DECLARATION" &&
rule.Children != null &&
rule.Children.Count > 0)
{ // parse the decalaration.
if (rule.Children[0].Text == "title")
{ // parse the background color.
file.Title = MapCSSDomainParser.ParseURL(rule.Children[1].Text);
}
else if (rule.Children[0].Text == "icon")
{ // parse the default points-setting.
file.Icon = MapCSSDomainParser.ParseURL(rule.Children[1].Text);
}
}
}
}
}