private static Image DrawSampleImage(Image image, Style style)
{
Image newImage = new Bitmap(image.Width, image.Height);
image.Dispose();
GdiPlusGeoCanvas canvas = new GdiPlusGeoCanvas();
canvas.BeginDrawing(newImage, new RectangleShape(0, newImage.Width, newImage.Height, 0), GeographyUnit.DecimalDegree);
style.DrawSample(canvas);
if (canvas.IsDrawing)
{
canvas.EndDrawing();
}
return(newImage);
}
protected override void DrawCore(GeoCanvas canvas, Collection <SimpleCandidate> labelsInAllLayers)
{
GeoImage miniImage = new GeoImage(width, height);
RectangleShape scaledWorldExtent = MapEngine.GetDrawingExtent(canvas.CurrentWorldExtent, width, height);
scaledWorldExtent.ScaleUp(300);
GdiPlusGeoCanvas minCanvas = new GdiPlusGeoCanvas();
minCanvas.BeginDrawing(miniImage, scaledWorldExtent, canvas.MapUnit);
foreach (Layer layer in layers)
{
layer.Draw(minCanvas, labelsInAllLayers);
}
minCanvas.DrawArea(RectangleShape.ScaleDown(minCanvas.CurrentWorldExtent, 1), new GeoPen(GeoColor.StandardColors.Gray, 2), DrawingLevel.LevelOne);
minCanvas.DrawArea(canvas.CurrentWorldExtent, new GeoPen(GeoColor.StandardColors.Black, 2), DrawingLevel.LevelOne);
minCanvas.EndDrawing();
ScreenPointF drawingLocation = GetDrawingLocation(canvas, width, height);
canvas.DrawScreenImageWithoutScaling(miniImage, (drawingLocation.X + width / 2) + 10, (drawingLocation.Y + height / 2) - 10, DrawingLevel.LevelOne, 0, 0, 0);
}
protected override void DrawCore(GeoCanvas canvas, Collection <SimpleCandidate> labelsInAllLayers)
{
if (IsVisible)
{
ScreenPointF screenPointF = GetDrawingLocation(canvas, logoImage.Width, logoImage.Height);
// If the canvas happens to be using GDI+ then we can do an optimization and skip
// the GeoImage. Otherwise we go the longer route in the else statement
if (canvas is GdiPlusGeoCanvas)
{
GdiPlusGeoCanvas gdiPlusGeoCanvas = canvas as GdiPlusGeoCanvas;
gdiPlusGeoCanvas.DrawScreenImageWithoutScaling(logoImage, screenPointF.X + logoImage.Width * 0.5f, screenPointF.Y + logoImage.Height * 0.5f, DrawingLevel.LevelOne, 0, 0, 0);
}
else
{
// Here we have to convert the stream to a TIFF to be used in the GeoImage
Stream stream = new MemoryStream();
logoImage.Save(stream, ImageFormat.Tiff);
GeoImage geoImage = new GeoImage(stream);
canvas.DrawScreenImageWithoutScaling(geoImage, screenPointF.X + logoImage.Width * 0.5f, screenPointF.Y + logoImage.Height * 0.5f, DrawingLevel.LevelOne, 0, 0, 0);
}
}
}
private float GetLegendWidth(LegendAdornmentLayer legendAdornmentLayer)
{
GdiPlusGeoCanvas gdiPlusGeoCanvas = new GdiPlusGeoCanvas();
LegendItem title = legendAdornmentLayer.Title;
float width = gdiPlusGeoCanvas.MeasureText(title.TextStyle.TextColumnName, new GeoFont("Segoe UI", 12)).Width
+ title.ImageWidth + title.ImageRightPadding + title.ImageLeftPadding + title.TextRightPadding + title.TextLeftPadding + title.LeftPadding + title.RightPadding;
foreach (LegendItem legendItem in legendAdornmentLayer.LegendItems)
{
float legendItemWidth = gdiPlusGeoCanvas.MeasureText(legendItem.TextStyle.TextColumnName, new GeoFont("Segoe UI", 10)).Width
+ legendItem.ImageWidth + legendItem.ImageRightPadding + legendItem.ImageLeftPadding + legendItem.TextRightPadding + legendItem.TextLeftPadding + legendItem.LeftPadding + legendItem.RightPadding;
if (width < legendItemWidth)
{
width = legendItemWidth;
}
}
return width;
}
private float GetLegendHeight(LegendAdornmentLayer legendAdornmentLayer)
{
GdiPlusGeoCanvas gdiPlusGeoCanvas = new GdiPlusGeoCanvas();
LegendItem title = legendAdornmentLayer.Title;
float titleMeasuredHeight = gdiPlusGeoCanvas.MeasureText(title.TextStyle.TextColumnName, new GeoFont("Segoe UI", 12)).Height;
float legendHeight = new[] { titleMeasuredHeight, title.ImageHeight, title.Height }.Max();
float height = legendHeight + Math.Max(title.ImageTopPadding, title.TextTopPadding) + title.TopPadding + Math.Max(title.ImageBottomPadding, title.TextBottomPadding) + title.BottomPadding;
foreach (LegendItem legendItem in legendAdornmentLayer.LegendItems)
{
float itemLegendHeight = Math.Max(gdiPlusGeoCanvas.MeasureText(legendItem.TextStyle.TextColumnName, new GeoFont("Segoe UI", 10)).Height, legendItem.ImageHeight);
float itemHeight = itemLegendHeight + Math.Max(legendItem.ImageTopPadding, legendItem.TextTopPadding) + legendItem.TopPadding + Math.Max(legendItem.ImageBottomPadding, legendItem.TextBottomPadding) + legendItem.BottomPadding;
height += itemHeight;
}
return height;
}
public void Draw(Style style)
{
GdiPlusGeoCanvas geoCanvas = new GdiPlusGeoCanvas();
DrawCore(geoCanvas, style);
}
private LayerTile DrawHighlightTile(RectangleShape targetExtent, LayerTile tile)
{
tile.DrawingLayers.Clear();
if (highlightFeatureLayer.InternalFeatures.Count > 0)
{
tile.DrawingLayers.Add(highlightFeatureLayer);
}
GeoCanvas geoCanvas = new GdiPlusGeoCanvas()
{
CompositingQuality = CompositingQuality.HighSpeed,
DrawingQuality = DrawingQuality.HighSpeed,
SmoothingMode = SmoothingMode.HighSpeed
};
Bitmap bitmap = new Bitmap((int)tile.Width, (int)tile.Height);
geoCanvas.BeginDrawing(bitmap, targetExtent, MapArguments.MapUnit);
tile.Draw(geoCanvas);
geoCanvas.EndDrawing();
tile.CommitDrawing(geoCanvas, MapSuiteSampleHelper.GetImageSourceFromNativeImage(bitmap));
return tile;
}
