private void BuildPaths(MapArgs e, IEnumerable <IFeature> features, out List <GraphicsPath> borderPaths)
{
borderPaths = new List <GraphicsPath>();
Rectangle clipRect = ComputeClippingRectangle(e);
Extent drawExtents = e.PixelToProj(clipRect);
SoutherlandHodgman shClip = new SoutherlandHodgman(clipRect);
for (int selectState = 0; selectState < 2; selectState++)
{
foreach (IPolygonCategory category in Symbology.Categories)
{
// Determine the subset of the specified features that are visible and match the category
IPolygonCategory polygonCategory = category;
int i = selectState;
Func <IDrawnState, bool> isMember = state =>
state.SchemeCategory == polygonCategory &&
state.IsVisible &&
state.IsSelected == (i == 1);
var drawnFeatures = from feature in features
where isMember(DrawingFilter[feature])
select feature;
GraphicsPath borderPath = new GraphicsPath();
foreach (IFeature f in drawnFeatures)
{
BuildPolygon(DataSet.Vertex, f.ShapeIndex, borderPath, e,
drawExtents.Contains(f.Envelope) ? null : shClip);
}
borderPaths.Add(borderPath);
}
}
}
/// <summary>
/// Removes the specified category
/// </summary>
/// <param name="category">The category to remove</param>
public override void RemoveCategory(ICategory category)
{
IPolygonCategory pc = category as IPolygonCategory;
if (pc != null)
{
_categories.Remove(pc);
}
}
/// <summary>
/// Inserts the category at the specified index
/// </summary>
/// <param name="index">The integer index where the category should be inserted</param>
/// <param name="category">The category to insert</param>
public override void InsertCategory(int index, ICategory category)
{
IPolygonCategory pc = category as IPolygonCategory;
if (pc != null)
{
_categories.Insert(index, pc);
}
}
/// <summary>
/// Adds a new scheme, assuming that the new scheme is the correct type.
/// </summary>
/// <param name="category">The category to add</param>
public override void AddCategory(ICategory category)
{
IPolygonCategory pc = category as IPolygonCategory;
if (pc != null)
{
_categories.Add(pc);
}
}
public void ConvertLayerProperties_MapPolygonDataWithThemeAndMetaDataNameNotInFeatures_OnlyAddsDefaultCategory()
{
// Setup
const string metadataAttribute = "Meta";
var random = new Random(21);
var theme = new MapTheme <PolygonCategoryTheme>("Other Meta", new[]
{
new PolygonCategoryTheme(ValueCriterionTestFactory.CreateValueCriterion(),
new PolygonStyle
{
FillColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeThickness = random.Next(1, 48)
})
});
var polygonStyle = new PolygonStyle
{
FillColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeThickness = random.Next(1, 48)
};
var mapPolygonData = new MapPolygonData("test", polygonStyle, theme)
{
Features = new[]
{
CreateMapFeatureWithMetaData(metadataAttribute)
}
};
var mapPolygonLayer = new MapPolygonLayer();
var converter = new MapPolygonDataConverter();
// Call
converter.ConvertLayerProperties(mapPolygonData, mapPolygonLayer);
// Assert
IPolygonSymbolizer expectedSymbolizer = CreateExpectedSymbolizer(polygonStyle);
IPolygonScheme appliedScheme = mapPolygonLayer.Symbology;
Assert.AreEqual(1, appliedScheme.Categories.Count);
IPolygonCategory baseCategory = appliedScheme.Categories[0];
AssertAreEqual(expectedSymbolizer, baseCategory.Symbolizer);
Assert.IsNull(baseCategory.FilterExpression);
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnMouseDoubleClick(MouseEventArgs e)
{
_wasDoubleClick = true;
Point loc = new Point(e.X + ControlRectangle.X, e.Location.Y + ControlRectangle.Top);
foreach (LegendBox lb in _legendBoxes)
{
if (!lb.Bounds.Contains(loc) || lb.CheckBox.Contains(loc))
{
continue;
}
ILineCategory lc = lb.Item as ILineCategory;
if (lc != null)
{
DetailedLineSymbolDialog lsDialog = new DetailedLineSymbolDialog(lc.Symbolizer);
lsDialog.ShowDialog();
ILineSymbolizer sel = lc.Symbolizer.Copy();
sel.SetFillColor(Color.Cyan);
lc.SelectionSymbolizer = sel;
}
IPointCategory pc = lb.Item as IPointCategory;
if (pc != null)
{
DetailedPointSymbolDialog dlg = new DetailedPointSymbolDialog(pc.Symbolizer);
dlg.ShowDialog();
IPointSymbolizer ps = pc.Symbolizer.Copy();
ps.SetFillColor(Color.Cyan);
pc.SelectionSymbolizer = ps;
}
IPolygonCategory polyCat = lb.Item as IPolygonCategory;
if (polyCat != null)
{
DetailedPolygonSymbolDialog dlg = new DetailedPolygonSymbolDialog(polyCat.Symbolizer);
dlg.ShowDialog();
IPolygonSymbolizer ps = polyCat.Symbolizer.Copy();
ps.SetFillColor(Color.Cyan);
ps.OutlineSymbolizer.SetFillColor(Color.DarkCyan);
polyCat.SelectionSymbolizer = ps;
}
IFeatureLayer fl = lb.Item as IFeatureLayer;
if (fl != null)
{
LayerDialog layDialog = new LayerDialog(fl, new FeatureCategoryControl());
layDialog.ShowDialog();
}
IRasterLayer rl = lb.Item as IRasterLayer;
if (rl != null)
{
LayerDialog dlg = new LayerDialog(rl, new RasterCategoryControl());
dlg.ShowDialog();
}
IColorCategory cb = lb.Item as IColorCategory;
if (cb != null)
{
_tabColorDialog = new TabColorDialog();
_tabColorDialog.ChangesApplied += TabColorDialogChangesApplied;
_tabColorDialog.StartColor = cb.LowColor;
_tabColorDialog.EndColor = cb.HighColor;
_editCategory = cb;
_tabColorDialog.ShowDialog(this);
}
}
base.OnMouseDoubleClick(e);
}
/// <summary>
/// Before a shape is selected, moving the mouse over a shape will highlight that shape by changing
/// its appearance. This tests features to determine the first feature to qualify as the highlight.
/// </summary>
/// <param name="e">The GeoMouseArgs parameter contains information about the mouse location
/// and geographic coordinates.</param>
/// <returns>A value indicating whether the shape was successfully highlighted.</returns>
private bool ShapeHighlight(GeoMouseArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e", "e is null.");
}
Rectangle mouseRect = new Rectangle(_mousePosition.X - 3, _mousePosition.Y - 3, 6, 6);
Extent ext = Map.PixelToProj(mouseRect);
IPolygon env = ext.ToEnvelope().ToPolygon();
bool requiresInvalidate = false;
foreach (IFeature feature in _featureSet.Features)
{
if (_featureSet.FeatureType == FeatureType.Point || _featureSet.FeatureType == FeatureType.MultiPoint)
{
MapPointLayer mpl = _layer as MapPointLayer;
if (mpl != null)
{
int w = 3;
int h = 3;
PointCategory pc = mpl.GetCategory(feature) as PointCategory;
if (pc != null)
{
if (pc.Symbolizer.ScaleMode != ScaleMode.Geographic)
{
Size2D size = pc.Symbolizer.GetSize();
w = (int)size.Width;
h = (int)size.Height;
}
}
_imageRect = new Rectangle(e.Location.X - (w / 2), e.Location.Y - (h / 2), w, h);
if (_imageRect.Contains(Map.ProjToPixel(feature.Geometry.Coordinates[0])))
{
_activeFeature = feature;
_oldCategory = mpl.GetCategory(feature);
if (_selectedCategory == null)
{
_selectedCategory = _oldCategory.Copy();
_selectedCategory.SetColor(Color.Red);
_selectedCategory.LegendItemVisible = false;
}
mpl.SetCategory(_activeFeature, _selectedCategory);
}
}
requiresInvalidate = true;
}
else
{
if (feature.Geometry.Intersects(env))
{
_activeFeature = feature;
_oldCategory = _layer.GetCategory(_activeFeature);
if (_featureSet.FeatureType == FeatureType.Polygon)
{
IPolygonCategory pc = _activeCategory as IPolygonCategory;
if (pc == null)
{
_activeCategory = new PolygonCategory(Color.FromArgb(55, 255, 0, 0), Color.Red, 1)
{
LegendItemVisible = false
};
}
}
if (_featureSet.FeatureType == FeatureType.Line)
{
ILineCategory pc = _activeCategory as ILineCategory;
if (pc == null)
{
_activeCategory = new LineCategory(Color.Red, 3)
{
LegendItemVisible = false
};
}
}
_layer.SetCategory(_activeFeature, _activeCategory);
requiresInvalidate = true;
}
}
}
return(requiresInvalidate);
}
/// <inheritdoc />
protected override void OnMouseDown(GeoMouseArgs e)
{
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Right)
{
_mousePosition = e.Location;
if (_dragging)
{
if (e.Button == MouseButtons.Right)
{
_dragging = false;
Map.Invalidate();
Map.IsBusy = false;
}
}
else
{
if (_selectedFeature != null)
{
Rectangle mouseRect = new Rectangle(_mousePosition.X - 3, _mousePosition.Y - 3, 6, 6);
Envelope env = Map.PixelToProj(mouseRect).ToEnvelope();
if (CheckForVertexDrag(e))
{
return;
}
// No vertex selection has occured.
if (!_selectedFeature.Geometry.Intersects(env.ToPolygon()))
{
// We are clicking down outside of the given polygon, so clear our selected feature
DeselectFeature();
return;
}
}
if (_activeFeature != null)
{
// Don't start dragging a vertices right away for polygons and lines.
// First you select the polygon, which displays the vertices, then they can be moved.
if (_featureSet.FeatureType == FeatureType.Polygon)
{
_selectedFeature = _activeFeature;
_activeFeature = null;
IPolygonCategory sc = _selectedCategory as IPolygonCategory;
if (sc == null)
{
_selectedCategory = new PolygonCategory(Color.FromArgb(55, 0, 255, 255), Color.Blue, 1)
{
LegendItemVisible = false
};
}
_layer.SetCategory(_selectedFeature, _selectedCategory);
}
else if (_featureSet.FeatureType == FeatureType.Line)
{
_selectedFeature = _activeFeature;
_activeFeature = null;
ILineCategory sc = _selectedCategory as ILineCategory;
if (sc == null)
{
_selectedCategory = new LineCategory(Color.Cyan, 1)
{
LegendItemVisible = false
};
}
_layer.SetCategory(_selectedFeature, _selectedCategory);
}
else
{
_dragging = true;
Map.IsBusy = true;
_dragCoord = _activeFeature.Geometry.Coordinates[0];
MapPointLayer mpl = _layer as MapPointLayer;
if (mpl != null)
{
mpl.SetVisible(_activeFeature, false);
}
IPointCategory sc = _selectedCategory as IPointCategory;
if (sc == null)
{
IPointSymbolizer ps =
_layer.GetCategory(_activeFeature).Symbolizer.Copy() as IPointSymbolizer;
if (ps != null)
{
ps.SetFillColor(Color.Cyan);
_selectedCategory = new PointCategory(ps);
}
}
}
}
Map.MapFrame.Initialize();
Map.Invalidate();
}
}
base.OnMouseDown(e);
}
/// <summary>
/// Re-orders the specified member by attempting to exchange it with the next higher
/// index category. If there is no higher index, this does nothing.
/// </summary>
/// <param name="category">The category to increase the index of</param>
public override bool IncreaseCategoryIndex(ICategory category)
{
IPolygonCategory pc = category as IPolygonCategory;
return(pc != null && Categories.IncreaseIndex(pc));
}
public void ConvertLayerProperties_MapPolygonDataWithThemeAndMetaDataNameInFeatures_ConvertDataToMapPolygonLayer()
{
// Setup
const string metadataAttribute = "Meta";
var random = new Random(21);
var unequalCriterion = new ValueCriterion(ValueCriterionOperator.UnequalValue,
"unequal value");
var equalCriterion = new ValueCriterion(ValueCriterionOperator.EqualValue,
"equal value");
var theme = new MapTheme <PolygonCategoryTheme>(metadataAttribute, new[]
{
new PolygonCategoryTheme(equalCriterion, new PolygonStyle
{
FillColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeThickness = random.Next(1, 48)
}),
new PolygonCategoryTheme(unequalCriterion, new PolygonStyle
{
FillColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeThickness = random.Next(1, 48)
})
});
var polygonStyle = new PolygonStyle
{
FillColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeColor = Color.FromKnownColor(random.NextEnum <KnownColor>()),
StrokeThickness = random.Next(1, 48)
};
var mapPolygonData = new MapPolygonData("test", polygonStyle, theme)
{
Features = new[]
{
CreateMapFeatureWithMetaData(metadataAttribute)
}
};
var mapPolygonLayer = new MapPolygonLayer();
var converter = new MapPolygonDataConverter();
// Call
converter.ConvertLayerProperties(mapPolygonData, mapPolygonLayer);
// Assert
PolygonSymbolizer expectedSymbolizer = CreateExpectedSymbolizer(polygonStyle);
IPolygonScheme appliedScheme = mapPolygonLayer.Symbology;
Assert.AreEqual(3, appliedScheme.Categories.Count);
IPolygonCategory baseCategory = appliedScheme.Categories[0];
AssertAreEqual(expectedSymbolizer, baseCategory.Symbolizer);
Assert.IsNull(baseCategory.FilterExpression);
IPolygonCategory equalSchemeCategory = appliedScheme.Categories[1];
string expectedFilter = $"[1] = '{equalCriterion.Value}'";
Assert.AreEqual(expectedFilter, equalSchemeCategory.FilterExpression);
PolygonStyle expectedCategoryStyle = theme.CategoryThemes.ElementAt(0).Style;
expectedSymbolizer = CreateExpectedSymbolizer(expectedCategoryStyle);
AssertAreEqual(expectedSymbolizer, equalSchemeCategory.Symbolizer);
IPolygonCategory unEqualSchemeCategory = appliedScheme.Categories[2];
expectedFilter = $"NOT [1] = '{unequalCriterion.Value}'";
Assert.AreEqual(expectedFilter, unEqualSchemeCategory.FilterExpression);
expectedCategoryStyle = theme.CategoryThemes.ElementAt(1).Style;
expectedSymbolizer = CreateExpectedSymbolizer(expectedCategoryStyle);
AssertAreEqual(expectedSymbolizer, unEqualSchemeCategory.Symbolizer);
}
