private TreeNode CreateThemeRuleNode(LayerNodeMetadata layer, ThemeCategory themeCat, double viewScale, string labelText, int geomType, int categoryIndex)
{
var lyr = layer.Layer;
TreeNode node = new TreeNode();
node.Text = labelText;
Image icon = _map.GetLegendImage(lyr.LayerDefinitionID,
viewScale,
16,
16,
"PNG",
geomType,
categoryIndex);
legendCallCount++;
var tag = new LayerThemeNodeMetadata(false, icon, labelText);
layer.AddThemeNode(themeCat, tag);
node.Tag = tag;
return node;
}
public TreeNode[] CreateNodes()
{
List<TreeNode> topLevelNodes = new List<TreeNode>();
var scale = _map.ViewScale;
if (scale < 10.0)
return topLevelNodes.ToArray();
var nodesById = new Dictionary<string, TreeNode>();
var groupsById = new Dictionary<string, TreeNode>();
var groups = _map.Groups;
var layers = _map.Layers;
legendCallCount = 0;
//Process groups first
List<RuntimeMapGroup> remainingNodes = new List<RuntimeMapGroup>();
for (int i = 0; i < groups.Count; i++)
{
var group = groups[i];
if (!_legend.ShowAllLayersAndGroups && !group.ShowInLegend)
continue;
//Add ones without parents first. Queue up child groups
if (!string.IsNullOrEmpty(group.Group))
{
remainingNodes.Add(group);
}
else
{
var node = CreateGroupNode(group);
topLevelNodes.Add(node);
nodesById.Add(group.ObjectId, node);
groupsById.Add(group.ObjectId, node);
}
}
//Process child groups
while (remainingNodes.Count > 0)
{
List<RuntimeMapGroup> toRemove = new List<RuntimeMapGroup>();
//Establish parent-child relationships for any child groups here
for (int j = 0; j < remainingNodes.Count; j++)
{
var grpName = remainingNodes[j].Group;
var parentGroup = _map.Groups[grpName];
if (parentGroup != null && nodesById.ContainsKey(parentGroup.ObjectId))
{
var node = CreateGroupNode(remainingNodes[j]);
nodesById[parentGroup.ObjectId].Nodes.Add(node);
var grpId = remainingNodes[j].ObjectId;
//Got to add this group node too, otherwise we could infinite
//loop looking for a parent that's not registered
nodesById.Add(grpId, node);
groupsById.Add(grpId, node);
toRemove.Add(remainingNodes[j]);
}
}
//Whittle down this list
if (toRemove.Count > 0)
{
foreach (var g in toRemove)
{
remainingNodes.Remove(g);
}
}
}
//Collect all resource contents in a batch
var layerIds = new List<string>();
//Also collect the layer metadata nodes to create or update
var layerMetaNodesToUpdate = new Dictionary<string, RuntimeMapLayer>();
//Now process layers. Layers without metadata nodes or without layer definition content
//are added to the list
for (int i = 0; i < layers.Count; i++)
{
var lyr = layers[i];
bool display = lyr.ShowInLegend;
bool visible = lyr.IsVisibleAtScale(_map.ViewScale);
if (!_legend.ShowAllLayersAndGroups && !display)
continue;
if (!_legend.ShowAllLayersAndGroups && !visible)
continue;
if (_layers.ContainsKey(lyr.ObjectId))
{
if (string.IsNullOrEmpty(_layers[lyr.ObjectId].LayerDefinitionContent))
{
var ldfId = lyr.LayerDefinitionID;
layerIds.Add(ldfId.ToString());
layerMetaNodesToUpdate[ldfId.ToString()] = lyr;
}
}
else
{
var ldfId = lyr.LayerDefinitionID;
layerIds.Add(ldfId.ToString());
layerMetaNodesToUpdate[ldfId.ToString()] = lyr;
}
}
if (layerIds.Count > 0)
{
int added = 0;
int updated = 0;
//Fetch the contents and create/update the required layer metadata nodes
//TODO: Surely we can optimize this better
foreach (var lid in layerIds)
{
using (var sr = new StreamReader(_resSvc.GetResourceXmlData(lid)))
{
string content = sr.ReadToEnd();
var lyr = layerMetaNodesToUpdate[lid];
var objId = lyr.ObjectId;
LayerNodeMetadata meta = null;
if (_layers.ContainsKey(objId))
{
meta = _layers[objId];
updated++;
}
else
{
RuntimeMapGroup group = null;
if (!string.IsNullOrEmpty(lyr.Group))
group = _map.Groups[lyr.Group];
meta = new LayerNodeMetadata(lyr, lyr.Selectable);
_layers[objId] = meta;
added++;
}
meta.LayerDefinitionContent = content;
}
}
Trace.TraceInformation("CreateNodes: {0} layer contents added, {1} layer contents updated", added, updated);
}
//Now create our layer nodes
List<RuntimeMapLayer> remainingLayers = new List<RuntimeMapLayer>();
//NOTE: We're taking a page out of the Fusion playbook of reverse iterating the layer
//collection and prepending the nodes, as this control suffered the same problem as the
//Legend widget in Fusion. Doing it this way eliminates the need for doing an extra pass to fix
//the layer/group ordering, which may make an impact on really chunky maps.
for (int i = layers.Count - 1; i >= 0; i--)
{
var layer = layers[i];
bool display = layer.ShowInLegend;
bool visible = layer.IsVisibleAtScale(_map.ViewScale);
if (!_legend.ShowAllLayersAndGroups && !display)
continue;
if (!_legend.ShowAllLayersAndGroups && !visible)
continue;
//Add ones without parents first. Queue up parented layers
if (!string.IsNullOrEmpty(layer.Group))
{
remainingLayers.Add(layer);
}
else
{
var node = CreateLayerNode(layer);
if (node != null)
{
topLevelNodes.Insert(0, node);
nodesById.Add(layer.ObjectId, node);
if (layer.ExpandInLegend)
node.Expand();
}
}
}
//Process parented layers
while (remainingLayers.Count > 0)
{
List<RuntimeMapLayer> toRemove = new List<RuntimeMapLayer>();
for (int j = remainingLayers.Count - 1; j >= 0; j--)
{
var grpName = remainingLayers[j].Group;
var parentGroup = _map.Groups[grpName];
if (parentGroup != null)
{
if (nodesById.ContainsKey(parentGroup.ObjectId))
{
var node = CreateLayerNode(remainingLayers[j]);
if (node != null)
{
nodesById[parentGroup.ObjectId].Nodes.Add(node); //.Insert(0, node);
if (remainingLayers[j].ExpandInLegend)
node.Expand();
}
toRemove.Add(remainingLayers[j]);
}
else //Group may not even be set to show in legend. Check for this
{
if (!parentGroup.ShowInLegend)
toRemove.Add(remainingLayers[j]);
}
}
}
//Whittle down this list
if (toRemove.Count > 0)
{
foreach (var g in toRemove)
{
remainingLayers.Remove(g);
}
}
}
//Now expand any relevant groups
for (int i = 0; i < groups.Count; i++)
{
var group = groups[i];
if (group.ExpandInLegend)
{
var groupId = group.ObjectId;
if (nodesById.ContainsKey(groupId))
{
nodesById[groupId].Expand();
}
}
}
Trace.TraceInformation("{0} calls made to GenerateLegendImage", legendCallCount);
return topLevelNodes.ToArray();
}
private TreeNode CreateCompressedThemeNode(LayerNodeMetadata layer, ThemeCategory cat, int count)
{
TreeNode node = new TreeNode();
node.Text = (count + " other styles");
node.ImageKey = node.SelectedImageKey = IMG_OTHER;
var meta = new LayerThemeNodeMetadata(true, Properties.Resources.icon_etc, node.Text);
node.Tag = meta;
layer.AddThemeNode(cat, meta);
return node;
}
private TreeNode CreateLayerNode(RuntimeMapLayer layer)
{
var node = new TreeNode();
node.Name = layer.ObjectId;
node.Text = layer.LegendLabel;
node.Checked = layer.Visible;
//node.ContextMenuStrip = _legend.LayerContextMenu;
var lt = layer.Type;
var fsId = layer.FeatureSourceID;
LayerNodeMetadata layerMeta = null;
if (fsId.EndsWith("DrawingSource"))
{
node.SelectedImageKey = node.ImageKey = IMG_DWF;
bool bInitiallySelectable = layer.Selectable;
if (_layers.ContainsKey(layer.ObjectId))
{
layerMeta = _layers[layer.ObjectId];
bInitiallySelectable = layerMeta.WasInitiallySelectable;
}
else //If not in the dictionary, assume it is a dynamically added layer
{
RuntimeMapGroup group = null;
if (!string.IsNullOrEmpty(layer.Group))
group = _map.Groups[layer.Group];
layerMeta = new LayerNodeMetadata(layer, bInitiallySelectable);
_layers[layer.ObjectId] = layerMeta;
}
node.Tag = layerMeta;
node.ToolTipText = string.Format(Properties.Resources.DrawingLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID);
}
else //Vector or Grid layer
{
var ldfId = layer.LayerDefinitionID;
if (_layers.ContainsKey(layer.ObjectId))
{
layerMeta = _layers[layer.ObjectId];
}
else
{
RuntimeMapGroup group = null;
if (!string.IsNullOrEmpty(layer.Group))
group = _map.Groups[layer.Group];
layerMeta = new LayerNodeMetadata(layer, layer.Selectable);
_layers[layer.ObjectId] = layerMeta;
}
if (string.IsNullOrEmpty(layerMeta.LayerDefinitionContent))
return null;
node.Tag = layerMeta;
const int LAYER_VECTOR = 0;
const int LAYER_RASTER = 1;
const int LAYER_DWF = 2;
XmlDocument doc = new XmlDocument();
doc.LoadXml(layerMeta.LayerDefinitionContent);
int type = LAYER_VECTOR;
XmlNodeList scaleRanges = doc.GetElementsByTagName("VectorScaleRange");
if (scaleRanges.Count == 0)
{
scaleRanges = doc.GetElementsByTagName("GridScaleRange");
if (scaleRanges.Count == 0)
{
scaleRanges = doc.GetElementsByTagName("DrawingLayerDefinition");
if (scaleRanges.Count == 0)
return null;
type = LAYER_DWF;
}
else
type = LAYER_RASTER;
}
String[] typeStyles = new String[] { "PointTypeStyle", "LineTypeStyle", "AreaTypeStyle", "CompositeTypeStyle" };
String[] ruleNames = new String[] { "PointRule", "LineRule", "AreaRule", "CompositeRule" };
node.ToolTipText = string.Format(Properties.Resources.DefaultLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID, layer.QualifiedClassName);
//Do this if not cached already from a previous run
if (!layerMeta.HasTheme() || !layerMeta.HasDefaultIcons())
{
for (int sc = 0; sc < scaleRanges.Count; sc++)
{
XmlElement scaleRange = (XmlElement)scaleRanges[sc];
XmlNodeList minElt = scaleRange.GetElementsByTagName("MinScale");
XmlNodeList maxElt = scaleRange.GetElementsByTagName("MaxScale");
String minScale, maxScale;
minScale = "0";
maxScale = "1000000000000.0"; // as MDF's VectorScaleRange::MAX_MAP_SCALE
if (minElt.Count > 0)
minScale = minElt[0].ChildNodes[0].Value;
if (maxElt.Count > 0)
maxScale = maxElt[0].ChildNodes[0].Value;
if (type != LAYER_VECTOR)
break;
bool bComposite = false;
//Check TS count. Give precedence to composite type styles
List<XmlNode> typeStyleCol = new List<XmlNode>();
XmlNodeList styleNodes = scaleRange.GetElementsByTagName(typeStyles[3]);
List<RuleData> rules = new List<RuleData>();
if (styleNodes.Count > 0)
{
foreach (XmlNode n in styleNodes)
{
// We will check if this typestyle is going to be shown in the legend
XmlNodeList showInLegend = ((XmlElement)n).GetElementsByTagName("ShowInLegend"); //NOXLATE
if (showInLegend.Count > 0)
if (!bool.Parse(showInLegend[0].ChildNodes[0].Value))
continue; // This typestyle does not need to be shown in the legend
typeStyleCol.Add(n);
var ruleData = new RuleData();
ruleData.GeomType = 3;
ruleData.RuleNodes = ((XmlElement)n).GetElementsByTagName(ruleNames[3]);
if (ruleData.RuleNodes.Count > 0)
rules.Add(ruleData);
}
bComposite = true;
}
else
{
for (int t = 0; t < 3; t++)
{
styleNodes = scaleRange.GetElementsByTagName(typeStyles[t]);
foreach (XmlNode n in styleNodes)
{
// We will check if this typestyle is going to be shown in the legend
XmlNodeList showInLegend = ((XmlElement)n).GetElementsByTagName("ShowInLegend"); //NOXLATE
if (showInLegend.Count > 0)
if (!bool.Parse(showInLegend[0].ChildNodes[0].Value))
continue; // This typestyle does not need to be shown in the legend
typeStyleCol.Add(n);
var ruleData = new RuleData();
ruleData.GeomType = t;
ruleData.RuleNodes = ((XmlElement)n).GetElementsByTagName(ruleNames[t]);
if (ruleData.RuleNodes.Count > 0)
rules.Add(ruleData);
}
}
}
//No type styles. Skip
if (typeStyleCol.Count == 0)
continue;
//Determine if this is themed or not
int nTotalRules = 0;
foreach (RuleData r in rules)
{
nTotalRules += r.RuleNodes.Count;
}
bool bThemed = nTotalRules > 1;
if (bThemed)
{
int catIndex = 0;
for (int i = 0; i < rules.Count; i++)
{
RuleData theRule = rules[i];
ThemeCategory themeCat = new ThemeCategory()
{
MinScale = minScale,
MaxScale = maxScale,
GeometryType = theRule.GeomType
};
//Non-composite styles must be processed once
if (layerMeta.CategoryExists(themeCat) && theRule.GeomType != 3)
continue;
layerMeta.SetDefaultIcon(themeCat, Properties.Resources.lc_theme);
node.ToolTipText = string.Format(Properties.Resources.ThemedLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID, layer.QualifiedClassName, nTotalRules);
if (_legend.ThemeCompressionLimit > 0 && theRule.RuleNodes.Count > _legend.ThemeCompressionLimit)
{
AddThemeRuleNode(layerMeta, themeCat, node, theRule.GeomType, catIndex, theRule.RuleNodes, 0);
node.Nodes.Add(CreateCompressedThemeNode(layerMeta, themeCat, theRule.RuleNodes.Count - 2));
AddThemeRuleNode(layerMeta, themeCat, node, theRule.GeomType, (catIndex + (theRule.RuleNodes.Count - 1)), theRule.RuleNodes, theRule.RuleNodes.Count - 1);
}
else
{
for (int r = 0; r < theRule.RuleNodes.Count; r++)
{
AddThemeRuleNode(layerMeta, themeCat, node, theRule.GeomType, (catIndex + r), theRule.RuleNodes, r);
}
}
//Only bump catIndex if composite, as category indexes for composite styles are handled differently
if (bComposite)
catIndex += theRule.RuleNodes.Count;
}
}
else
{
Trace.Assert(rules.Count == 1);
Trace.Assert(rules[0].RuleNodes.Count == 1);
RuleData theRule = rules[0];
ThemeCategory themeCat = new ThemeCategory()
{
MinScale = minScale,
MaxScale = maxScale,
GeometryType = theRule.GeomType
};
if (layerMeta.CategoryExists(themeCat))
continue;
if (LayerNodeMetadata.ScaleIsApplicable(_map.ViewScale, themeCat))
{
if (!layerMeta.HasDefaultIconsAt(_map.ViewScale))
{
try
{
var img = _map.GetLegendImage(layer.LayerDefinitionID,
_map.ViewScale,
16,
16,
"PNG",
(theRule.GeomType + 1),
-1);
legendCallCount++;
layerMeta.SetDefaultIcon(themeCat, img);
node.ToolTipText = string.Format(Properties.Resources.DefaultLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID, layer.QualifiedClassName);
}
catch
{
//layerMeta.SetDefaultIcon(themeCat, Properties.Resources.lc_broken);
}
}
}
}
//for (int geomType = 0; geomType < typeStyles.Length; geomType++)
//{
// ThemeCategory themeCat = new ThemeCategory()
// {
// MinScale = minScale,
// MaxScale = maxScale,
// GeometryType = geomType
// };
// if (layerMeta.CategoryExists(themeCat))
// continue;
// int catIndex = 0;
// XmlNodeList typeStyle = scaleRange.GetElementsByTagName(typeStyles[geomType]);
// for (int st = 0; st < typeStyle.Count; st++)
// {
// // We will check if this typestyle is going to be shown in the legend
// XmlNodeList showInLegend = ((XmlElement)typeStyle[st]).GetElementsByTagName("ShowInLegend");
// if (showInLegend.Count > 0)
// if (!bool.Parse(showInLegend[0].ChildNodes[0].Value))
// continue; // This typestyle does not need to be shown in the legend
// XmlNodeList rules = ((XmlElement)typeStyle[st]).GetElementsByTagName(ruleNames[geomType]);
// if (rules.Count > 1)
// {
// layerMeta.SetDefaultIcon(themeCat, Properties.Resources.lc_theme);
// node.ToolTipText = string.Format(Properties.Resources.ThemedLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID, layer.QualifiedClassName, rules.Count);
// if (_legend.ThemeCompressionLimit > 0 && rules.Count > _legend.ThemeCompressionLimit)
// {
// AddThemeRuleNode(layerMeta, themeCat, node, geomType, 0, rules, 0);
// node.Nodes.Add(CreateCompressedThemeNode(layerMeta, themeCat, rules.Count - 2));
// AddThemeRuleNode(layerMeta, themeCat, node, geomType, rules.Count - 1, rules, rules.Count - 1);
// }
// else
// {
// for (int r = 0; r < rules.Count; r++)
// {
// AddThemeRuleNode(layerMeta, themeCat, node, geomType, catIndex++, rules, r);
// }
// }
// }
// else
// {
// if (LayerNodeMetadata.ScaleIsApplicable(_map.ViewScale, themeCat))
// {
// if (!layerMeta.HasDefaultIconsAt(_map.ViewScale))
// {
// try
// {
// var img = _map.GetLegendImage(layer.LayerDefinitionID,
// _map.ViewScale,
// 16,
// 16,
// "PNG",
// -1,
// -1);
// legendCallCount++;
// layerMeta.SetDefaultIcon(themeCat, img);
// node.ToolTipText = string.Format(Properties.Resources.DefaultLayerTooltip, Environment.NewLine, layer.Name, layer.FeatureSourceID, layer.QualifiedClassName);
// }
// catch
// {
// //layerMeta.SetDefaultIcon(themeCat, Properties.Resources.lc_broken);
// }
// }
// }
// }
// }
//}
}
}
else //Already cached
{
Trace.TraceInformation("Icons already cached for: " + layer.Name);
node.Nodes.AddRange(layerMeta.CreateThemeNodesFromCachedMetadata(_map.ViewScale));
}
}
return node;
}
private void AddThemeRuleNode(LayerNodeMetadata layerMeta, ThemeCategory themeCat, TreeNode node, int geomType, int catIndex, XmlNodeList rules, int ruleOffset)
{
XmlElement rule = (XmlElement)rules[ruleOffset];
XmlNodeList label = rule.GetElementsByTagName("LegendLabel");
XmlNodeList filter = rule.GetElementsByTagName("Filter");
String labelText = "";
if (label != null && label.Count > 0 && label[0].ChildNodes.Count > 0)
labelText = label[0].ChildNodes[0].Value;
//String filterText = "";
//if (filter != null && filter.Count > 0 && filter[0].ChildNodes.Count > 0)
// filterText = filter[0].ChildNodes[0].Value;
if (LayerNodeMetadata.ScaleIsApplicable(_map.ViewScale, themeCat))
{
var child = CreateThemeRuleNode(layerMeta, themeCat, _map.ViewScale, labelText, (geomType + 1), catIndex);
node.Nodes.Add(child);
}
else
{
}
}
