/// <summary>
/// Static constructor for Globals class
/// </summary>
static Globals()
{
LayerColors = new ColorSchemes(ColorSchemeType.Layer);
XmlDocument doc = new XmlDocument();
doc.LoadXml(Properties.Resources.colorschemes);
LayerColors.LoadXML(doc);
}
/// <summary>
/// Generate label categories for the given set of shapefile categories
/// </summary>
/// <param name="mapWin">The reference to MapWindow</param>
/// <param name="layerHandle">The handle of the layer</param>
internal static void GenerateCategories(LegendControl.Legend legend, int layerHandle)
{
Layer lyr = legend.GetLayer(layerHandle);
Shapefile sf = lyr.GetObject() as MapWinGIS.Shapefile;
Labels lb = sf.Labels;
sf.Labels.ClearCategories();
for (int i = 0; i < sf.Categories.Count; i++)
{
ShapefileCategory cat = sf.Categories.get_Item(i);
LabelCategory labelCat = lb.AddCategory(cat.Name);
labelCat.Expression = cat.Expression;
}
SymbologySettings settings = Globals.get_LayerSettings(layerHandle);
ColorBlend blend = (ColorBlend)settings.LabelsScheme;
if (blend != null)
{
ColorScheme scheme = ColorSchemes.ColorBlend2ColorScheme(blend);
if (settings.LabelsRandomColors)
{
lb.ApplyColorScheme(tkColorSchemeType.ctSchemeRandom, scheme);
}
else
{
lb.ApplyColorScheme(tkColorSchemeType.ctSchemeGraduated, scheme);
}
}
if (settings.LabelsVariableSize)
{
for (int i = 0; i < lb.NumCategories; i++)
{
lb.get_Category(i).FontSize = (int)((double)sf.Labels.FontSize +
(double)settings.LabelsSizeRange / ((double)lb.NumCategories - 1) * (double)i);
}
}
// Expressions aren't supported by labels yet, therefore we need to copy indices from the symbology
for (int i = 0; i < lb.Count; i++)
{
MapWinGIS.Label label = lb.get_Label(i, 0);
label.Category = sf.get_ShapeCategory(i);
}
}
/// <summary>
/// Reads the list of color schemes
/// </summary>
public void ReadFromXML()
{
this.List.Clear();
XmlDocument xmlDoc = new XmlDocument();
string filename = this.GetFilename();
// reading from the file
if (System.IO.File.Exists(filename))
{
xmlDoc.Load(filename);
this.LoadXML(xmlDoc);
}
// creating default ones
if (this.List.Count == 0)
{
ColorBlend blend = null;
if (_type == ColorSchemeType.Layer)
{
// dummy single color blend must be always the first for shapefile
blend = new ColorBlend(2);
blend.Colors[0] = Color.White; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.White; blend.Positions[1] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.LightBlue; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Orange; blend.Positions[1] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.Yellow; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Orange; blend.Positions[1] = 1.0f;
this.List.Add(blend);
for (int i = 0; i < 2; i++)
{
MapWinGIS.ColorScheme sch = new ColorScheme();
if (i == 0)
{
sch.SetColors4(PredefinedColorScheme.FallLeaves);
}
if (i == 1)
{
sch.SetColors4(PredefinedColorScheme.DeadSea);
}
blend = ColorSchemes.ColorScheme2ColorBlend(sch);
this.List.Add(blend);
}
// adding to 2 color schemes, as there can be none in the list
blend = new ColorBlend(7);
blend.Colors[0] = Color.Red; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Orange; blend.Positions[1] = 1.0f / 6.0f;
blend.Colors[2] = Color.Yellow; blend.Positions[2] = 2.0f / 6.0f;
blend.Colors[3] = Color.LightGreen; blend.Positions[3] = 3.0f / 6.0f;
blend.Colors[4] = Color.LightBlue; blend.Positions[4] = 4.0f / 6.0f;
blend.Colors[5] = Color.Blue; blend.Positions[5] = 5.0f / 6.0f;
blend.Colors[6] = Color.BlueViolet; blend.Positions[6] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.LightGray; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Gray; blend.Positions[1] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.Pink; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.LightYellow; blend.Positions[1] = 1.0f;
this.List.Add(blend);
}
else if (_type == ColorSchemeType.Charts)
{
blend = new ColorBlend(2);
blend.Colors[0] = Color.Yellow; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Orange; blend.Positions[1] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.LightBlue; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Pink; blend.Positions[1] = 1.0f;
this.List.Add(blend);
blend = new ColorBlend(2);
blend.Colors[0] = Color.LightGreen; blend.Positions[0] = 0.0f;
blend.Colors[1] = Color.Yellow; blend.Positions[1] = 1.0f;
this.List.Add(blend);
}
}
}