public ClassBreakStyleItem(ClassBreakStyle style)
: base(style)
{
classBreakStyle = style;
if (classBreakStyle != null)
{
foreach (var classBreak in classBreakStyle.ClassBreaks)
{
StyleLayerListItem classBreakItem = new ClassBreakSubItem(classBreak, classBreakStyle.ColumnName);
Children.Add(classBreakItem);
}
}
}
protected override void UpdateStyleItemCore()
{
base.UpdateStyleItemCore();
if (classBreakStyle != null)
{
var deletedClassBreaks = Children.Where(i => !classBreakStyle.ClassBreaks.Any(c => c == i.ConcreteObject)).ToList();
foreach (var deletedClassBreak in deletedClassBreaks)
{
if (Children.Contains(deletedClassBreak))
{
Children.Remove(deletedClassBreak);
}
}
var addedClassBreaks = classBreakStyle.ClassBreaks.Where(c => !Children.Any(i => i.ConcreteObject == c)).ToList();
foreach (var addedClassBreak in addedClassBreaks)
{
StyleLayerListItem classBreakItem = new ClassBreakSubItem(addedClassBreak, classBreakStyle.ColumnName);
Children.Add(classBreakItem);
}
}
}
private IEnumerable <LegendImporterItemViewModel> GenerateStyleItems(Styles.Style style, int level)
{
if (style is AreaStyle || style is PointStyle || style is LineStyle)
{
LegendImporterItemViewModel styleLegendItem = new LegendImporterItemViewModel
{
Text = style.Name,
CheckBoxVisibility = Visibility.Visible,
Level = level,
LeftPaddingLevel = level,
Style = style
};
using (Bitmap nativeImage = new Bitmap(iconSize, iconSize))
{
var geoCanvas = new PlatformGeoCanvas();
var drawingShape = new RectangleShape(-10, 10, 10, -10);
geoCanvas.BeginDrawing(nativeImage, drawingShape, GeographyUnit.Meter);
style.DrawSample(geoCanvas, new DrawingRectangleF(geoCanvas.Width * .5f, geoCanvas.Height * .5f, geoCanvas.Width, geoCanvas.Height));
geoCanvas.EndDrawing();
var streamSource = new MemoryStream();
nativeImage.Save(streamSource, ImageFormat.Png);
var imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.StreamSource = streamSource;
imageSource.EndInit();
imageSource.Freeze();
styleLegendItem.IconSource = imageSource;
}
yield return(styleLegendItem);
}
else if (style is ClassBreakStyle || style is RegexStyle || style is ValueStyle || style is FilterStyle)
{
var clonedStyle = style.CloneDeep();
var classBreakStyle = clonedStyle as ClassBreakStyle;
var regexStyle = clonedStyle as RegexStyle;
var valueStyle = clonedStyle as ValueStyle;
var filterStyle = clonedStyle as FilterStyle;
IEnumerable <Styles.Style> subStyles = new Collection <Styles.Style>();
if (classBreakStyle != null)
{
subStyles = classBreakStyle.ClassBreaks.SelectMany(classBreakItem =>
{
foreach (var item in classBreakItem.CustomStyles)
{
item.Name = ClassBreakSubItem.GetClassBreakStyleName(classBreakItem.Value);
}
return(classBreakItem.CustomStyles);
});
}
else if (regexStyle != null)
{
subStyles = regexStyle.RegexItems.SelectMany(regexItem => regexItem.CustomStyles);
}
else if (filterStyle != null)
{
subStyles = new Collection <Styles.Style>();//filterStyle.Styles;
}
else
{
subStyles = valueStyle.ValueItems.SelectMany(valueItem =>
{
foreach (var item in valueItem.CustomStyles)
{
item.Name = valueItem.Value;
}
return(valueItem.CustomStyles);
});
}
LegendImporterItemViewModel styleLegendItem = new LegendImporterItemViewModel
{
Text = style.Name,
CheckBoxVisibility = Visibility.Visible,
Level = level,
Style = style
};
styleLegendItem.PropertyChanged += LayerLegendImporterItemPropertyChanged;
using (Bitmap nativeImage = new Bitmap(iconSize, iconSize))
{
var geoCanvas = new PlatformGeoCanvas();
var drawingShape = new RectangleShape(-10, 10, 10, -10);
geoCanvas.BeginDrawing(nativeImage, drawingShape, GeographyUnit.Meter);
style.DrawSample(geoCanvas, new DrawingRectangleF(geoCanvas.Width * .5f, geoCanvas.Height * .5f, geoCanvas.Width, geoCanvas.Height));
geoCanvas.EndDrawing();
var streamSource = new MemoryStream();
nativeImage.Save(streamSource, ImageFormat.Png);
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.StreamSource = streamSource;
imageSource.EndInit();
imageSource.Freeze();
styleLegendItem.IconSource = imageSource;
}
yield return(styleLegendItem);
foreach (var itemStyle in subStyles)
{
foreach (var tmpItem in GenerateStyleItems(itemStyle, level + 3))
{
yield return(tmpItem);
}
}
}
else
{
var componentStyle = style as CompositeStyle;
if (componentStyle != null)
{
if (componentStyle.Styles.Count > 1)
{
LegendImporterItemViewModel styleLegendItem = new LegendImporterItemViewModel
{
Text = style.Name,
CheckBoxVisibility = Visibility.Visible,
Level = level,
IconSource = new BitmapImage()
};
yield return(styleLegendItem);
foreach (var innerStyle in componentStyle.Styles.Reverse())
{
foreach (var tmpItem in GenerateStyleItems(innerStyle, level + 3))
{
yield return(tmpItem);
}
}
}
else
{
foreach (var tmpItem in GenerateStyleItems(componentStyle.Styles.FirstOrDefault(), level))
{
yield return(tmpItem);
}
}
}
else
{
LegendImporterItemViewModel styleLegendItem = new LegendImporterItemViewModel
{
Text = style.Name,
CheckBoxVisibility = Visibility.Collapsed,
Level = level,
IconSource = new BitmapImage()
};
yield return(styleLegendItem);
}
}
}
