public RenderingRulesMother AddSelectors(string expression)
{
OsmElementSelectorParser parser = new OsmElementSelectorParser();
IOsmElementSelector selector = parser.Parse(expression);
currentRule.Selector = selector;
return(this);
}
public RenderingRule(string ruleName,
RenderingRuleTargets targets,
IOsmElementSelector selector,
IOsmObjectRenderingTemplate template)
{
this.ruleName = ruleName;
this.targets = targets;
this.selector = selector;
this.template = template;
}
private IOsmElementSelector ParseRuleSelector(string selectorText)
{
try
{
OsmElementSelectorParser parser = new OsmElementSelectorParser();
IOsmElementSelector selector = parser.Parse(selectorText);
return(selector);
}
catch (Exception ex)
{
ThrowParseError("Could not parse the selector: '{0}'", ex.Message);
return(null); // dummy
}
}
private void ParseAreaRule(IList <string> tableRowCells)
{
string ruleName = GetTableRowCell(tableRowCells, 0, false, "Rule name missing");
string selectorText = GetTableRowCell(tableRowCells, 1, false, "Rule selector missing");
string minLevelText = GetTableRowCell(tableRowCells, 2, true, null);
string maxLevelText = GetTableRowCell(tableRowCells, 3, true, null);
string typeName = GetTableRowCell(tableRowCells, 4, true, null);
string label = GetTableRowCell(tableRowCells, 5, true, null);
string colorsText = GetTableRowCell(tableRowCells, 6, false, "Area colors value missing");
string patternText = GetTableRowCell(tableRowCells, 7, true, null);
IOsmElementSelector osmElementSelector = ParseRuleSelector(tableRowCells[1]);
IList <string> colors = ParseColors(colorsText);
PolygonTemplate template = new PolygonTemplate();
template.Style.SetParameter("rulename", ruleName);
if (false == string.IsNullOrEmpty(minLevelText))
{
template.Style.MinZoomFactor = ParseLevel(minLevelText);
}
if (false == string.IsNullOrEmpty(maxLevelText))
{
template.Style.MaxZoomFactor = ParseLevel(maxLevelText);
}
template.Style.SetParameter("colors", colors);
if (false == string.IsNullOrEmpty(typeName))
{
template.Style.SetParameter("typename", typeName);
}
if (false == String.IsNullOrEmpty(label))
{
template.Style.SetParameter("label", label);
}
if (false == String.IsNullOrEmpty(patternText))
{
template.Style.SetParameter("pattern", ParseAreaPattern(patternText));
}
RenderingRule rule = new RenderingRule(ruleName, RenderingRuleTargets.Areas, osmElementSelector, template);
rules.AddRule(rule);
}
private void ParsePointRule(IList <string> tableRowCells)
{
string ruleName = GetTableRowCell(tableRowCells, 0, false, "Rule name missing");
string selectorText = GetTableRowCell(tableRowCells, 1, false, "Rule selector missing");
string minLevelText = GetTableRowCell(tableRowCells, 2, true, null);
string maxLevelText = GetTableRowCell(tableRowCells, 3, true, null);
string typeName = GetTableRowCell(tableRowCells, 4, true, null);
string label = GetTableRowCell(tableRowCells, 5, true, null);
string iconText = GetTableRowCell(tableRowCells, 6, true, null);
IOsmElementSelector osmElementSelector = ParseRuleSelector(tableRowCells[1]);
IconTemplate template = new IconTemplate();
template.Style.SetParameter("rulename", ruleName);
if (false == string.IsNullOrEmpty(minLevelText))
{
template.Style.MinZoomFactor = ParseLevel(minLevelText);
}
if (false == string.IsNullOrEmpty(maxLevelText))
{
template.Style.MaxZoomFactor = ParseLevel(maxLevelText);
}
if (false == string.IsNullOrEmpty(typeName))
{
template.Style.SetParameter("typename", typeName);
}
if (false == String.IsNullOrEmpty(label))
{
template.Style.SetParameter("label", label);
}
if (false == String.IsNullOrEmpty(iconText))
{
// first check if it is a Wiki link
Match match = regexWikiLink.Match(iconText);
if (match.Success)
{
string wikiLink = match.Groups["link"].Value.Trim();
// now check that the link is a local one (we are currently not supporting remote links)
if (false == wikiLink.StartsWith("#", StringComparison.OrdinalIgnoreCase))
{
ThrowParseError(
"Currently only local links (to the same page) are supported for point patterns: '{0}'",
wikiLink);
}
template.Style.SetParameter("patternurl", wikiLink);
}
else
{
template.Style.SetParameter("iconurl", iconText);
}
}
// NOTE: the rule will target both OSM nodes and areas
// this way we can put an icon on the conter of an area (example: place=locality)
RenderingRule rule = new RenderingRule(ruleName, RenderingRuleTargets.Nodes | RenderingRuleTargets.Areas, osmElementSelector, template);
rules.AddRule(rule);
}
private void ParseLineRule(IList <string> tableRowCells)
{
string ruleName = GetTableRowCell(tableRowCells, 0, false, "Rule name missing");
string selectorText = GetTableRowCell(tableRowCells, 1, false, "Rule selector missing");
string minLevelText = GetTableRowCell(tableRowCells, 2, true, null);
string maxLevelText = GetTableRowCell(tableRowCells, 3, true, null);
string typeName = GetTableRowCell(tableRowCells, 4, true, null);
string label = GetTableRowCell(tableRowCells, 5, true, null);
string colorsText = GetTableRowCell(tableRowCells, 6, false, "Line colors value missing");
string widthText = GetTableRowCell(tableRowCells, 7, true, null);
string borderWidthText = GetTableRowCell(tableRowCells, 8, true, null);
string patternText = GetTableRowCell(tableRowCells, 9, true, null);
IOsmElementSelector osmElementSelector = ParseRuleSelector(tableRowCells[1]);
bool lineWidthsSpecified = false;
PolylineTemplate template = new PolylineTemplate();
template.Style.SetParameter("rulename", ruleName);
if (false == string.IsNullOrEmpty(minLevelText))
{
template.Style.MinZoomFactor = ParseLevel(minLevelText);
}
if (false == string.IsNullOrEmpty(maxLevelText))
{
template.Style.MaxZoomFactor = ParseLevel(maxLevelText);
}
template.Style.SetParameter("colors", ParseColors(colorsText));
if (false == string.IsNullOrEmpty(typeName))
{
template.Style.SetParameter("typename", typeName);
}
if (false == String.IsNullOrEmpty(label))
{
template.Style.SetParameter("label", label);
}
if (false == String.IsNullOrEmpty(widthText))
{
lineWidthsSpecified = true;
template.Style.SetParameter("width", ParseLineWidth(widthText));
}
if (false == String.IsNullOrEmpty(borderWidthText))
{
lineWidthsSpecified = true;
template.Style.SetParameter("borderwidth", ParseLineWidth(borderWidthText));
}
if (false == String.IsNullOrEmpty(patternText))
{
if (lineWidthsSpecified)
{
ThrowParseError("Both line widths and the line pattern are specified. These are mutually exclusive - choose one or the other");
}
template.Style.SetParameter("pattern", ParseLinePattern(patternText));
}
RenderingRule rule = new RenderingRule(ruleName, RenderingRuleTargets.Ways, osmElementSelector, template);
rules.AddRule(rule);
}
public OsmFeature(IOsmElementSelector selector)
{
this.selector = selector;
}