private void DrawInternal(GeoCanvas canvas, Collection <SimpleCandidate> labelsInAllLayers)
{
RectangleShape currentBoundingBox = GetBoundingBox();
AreaStyle brushStyle = BackgroundMask.CloneDeep() as AreaStyle;
brushStyle.OutlinePen.Width = 0;
brushStyle.Draw(new BaseShape[] { currentBoundingBox }, canvas, new Collection <SimpleCandidate>(), labelsInAllLayers);
// Clear Cache images
if (LastmapExtent != null)
{
if (LastmapExtent.UpperLeftPoint.X != MapExtent.UpperLeftPoint.X ||
LastmapExtent.UpperLeftPoint.Y != MapExtent.UpperLeftPoint.Y ||
LastmapExtent.LowerRightPoint.X != MapExtent.LowerRightPoint.X ||
LastmapExtent.LowerRightPoint.Y != MapExtent.LowerRightPoint.Y ||
IsDrawing)
{
mapImageCache = null;
}
}
//For adjusting the world extent of the map to the ratio of the drawing area.
RectangleShape adjustedWorldExtent = ExtentHelper.GetDrawingExtent(MapExtent, (float)currentBoundingBox.Width, (float)currentBoundingBox.Height);
RectangleShape boundingBox = GetBoundingBox();
PointShape ajustedWorldCenter = adjustedWorldExtent.GetCenterPoint();
PageGeoCanvas pageGeoCanvas = new PageGeoCanvas(new RectangleShape(0, boundingBox.Height, boundingBox.Width, 0), currentBoundingBox);
//if (EnableClipping)
//{
// pageGeoCanvas.EnableCliping = true;
// pageGeoCanvas.ClipingArea = adjustedWorldExtent;
//}
//if (canvas is GdiPlusGeoCanvas && DrawingMode != Core.DrawingMode.Vector)
// only display on map.
if (DrawingMode != MapPrinterDrawingMode.Vector && !(canvas is PrinterGeoCanvas))
{
double width = boundingBox.Width / canvas.CurrentWorldExtent.Width * canvas.Width;
double height = boundingBox.Height / canvas.CurrentWorldExtent.Height * canvas.Height;
GeoImage image = GetCacheImage(pageGeoCanvas, canvas.MapUnit, adjustedWorldExtent, labelsInAllLayers, width, height);
pageGeoCanvas.BeginDrawing(canvas, adjustedWorldExtent, MapUnit);
if (image != null)
{
pageGeoCanvas.DrawWorldImage(image, ajustedWorldCenter.X, ajustedWorldCenter.Y, (float)boundingBox.Width - 0.5f, (float)boundingBox.Height - 0.5f, DrawingLevel.LabelLevel);
}
if (DrawDescription)
{
DrawDescriptionText(pageGeoCanvas);
}
//pageGeoCanvas.EnableCliping = false;
pageGeoCanvas.EndDrawing();
}
// display on map or printer.
else
{
pageGeoCanvas.BeginDrawing(canvas, adjustedWorldExtent, MapUnit);
double increase = 0;
if (BackgroundMask.OutlinePen != null)
{
float haflPenWidth = BackgroundMask.OutlinePen.Width / 2;
increase = haflPenWidth * canvas.CurrentWorldExtent.Width / canvas.Width;
}
canvas.ClippingArea = new RectangleShape(
currentBoundingBox.UpperLeftPoint.X - increase,
currentBoundingBox.UpperLeftPoint.Y + increase,
currentBoundingBox.LowerRightPoint.X + increase,
currentBoundingBox.LowerRightPoint.Y - increase);
if (canvas is PrinterGeoCanvas)
{
foreach (Layer layer in Layers)
{
pageGeoCanvas.Flush();
float savedDrawingMarginPercentage = 0;
FeatureLayer featureLayer = layer as FeatureLayer;
if (featureLayer != null)
{
savedDrawingMarginPercentage = featureLayer.DrawingMarginInPixel;
featureLayer.DrawingMarginInPixel = 0;
}
layer.SafeProcess(() =>
{
layer.Draw(pageGeoCanvas, labelsInAllLayers);
});
if (featureLayer != null && savedDrawingMarginPercentage != 0)
{
featureLayer.DrawingMarginInPixel = savedDrawingMarginPercentage;
}
}
}
else
{
using (MemoryStream ms = GetImageStream(canvas, labelsInAllLayers, adjustedWorldExtent, boundingBox))
{
pageGeoCanvas.DrawWorldImage(new GeoImage(ms), ajustedWorldCenter.X, ajustedWorldCenter.Y, (float)boundingBox.Width - 0.5f, (float)boundingBox.Height - 0.5f, DrawingLevel.LabelLevel);
}
//foreach (Layer layer in Layers)
//{
// pageGeoCanvas.Flush();
// layer.SafeProcess(() =>
// {
// layer.Draw(pageGeoCanvas, labelsInAllLayers);
// });
//}
}
if (DrawDescription)
{
DrawDescriptionText(pageGeoCanvas);
}
//pageGeoCanvas.EnableCliping = false;
var areaStyle = new AreaStyle(BackgroundMask.OutlinePen)
{
DrawingLevel = DrawingLevel.LabelLevel
};
areaStyle.Draw(new BaseShape[1] {
currentBoundingBox
}, canvas, new Collection <SimpleCandidate>(), labelsInAllLayers);
canvas.ClippingArea = null;
}
AreaStyle lineStyle = new AreaStyle(BackgroundMask.OutlinePen.CloneDeep());
lineStyle.DrawingLevel = DrawingLevel.LabelLevel;
lineStyle.Draw(new BaseShape[] { currentBoundingBox }, canvas, new Collection <SimpleCandidate>(), labelsInAllLayers);
LastmapExtent = new RectangleShape(MapExtent.UpperLeftPoint.X, MapExtent.UpperLeftPoint.Y, MapExtent.LowerRightPoint.X, MapExtent.LowerRightPoint.Y);
}
