private void RenderGraph()
{
ClearRenderTargetBitmap(_heatMapGraph, Brushes.White);
const double xAxisOffset = 250;
const double yAxisOffset = 500;
const double topOffset = 50;
const double rightOffset = 250;
var xAxisLength = _heatMapGraph.PixelWidth - (int)xAxisOffset - (int)rightOffset;
var yAxisLength = _heatMapGraph.PixelHeight - (int)yAxisOffset - (int)topOffset;
const double axisThickness = 10;
var axisPen = new Pen(Brushes.Black, axisThickness);
var axisTickPen = new Pen(Brushes.Black, axisThickness / 2);
DrawHeatMap();
var heatMapRect = new Rectangle
{
Fill = new ImageBrush(_heatMap) { Stretch = Stretch.Uniform },
Effect = _heatMapColourEffect
};
var heatMapRectSize = new Size(xAxisLength, yAxisLength);
heatMapRect.Measure(heatMapRectSize);
heatMapRect.Arrange(new Rect(new Point(xAxisOffset + 5, topOffset), heatMapRectSize));
_heatMapGraph.Render(heatMapRect);
var heatMapKeyWidth = xAxisLength;
const int heatMapKeyHeight = 100;
var heatMapKeyRect = new Rectangle
{
Fill = new ImageBrush(DrawHeatKey(heatMapKeyWidth, heatMapKeyHeight)),
Effect = _heatMapColourEffect
};
var heatMapKeySize = new Size(heatMapKeyWidth, heatMapKeyHeight);
heatMapKeyRect.Measure(heatMapKeySize);
heatMapKeyRect.Arrange(new Rect(new Point(xAxisOffset + 5, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 150), heatMapKeySize));
_heatMapGraph.Render(heatMapKeyRect);
var drawingVisual = new DrawingVisual();
var textTypeFace = new Typeface(new FontFamily("Arial"), FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
const double headerFontSize = 80d;
const double fontSize = 40d;
const int numberOfTicks = 10;
var fontBrush = Brushes.Black;
using (var context = drawingVisual.RenderOpen())
{
//Y Axis
context.DrawLine(axisPen, new Point(xAxisOffset, topOffset), new Point(xAxisOffset, topOffset + yAxisLength));
//X Axis
context.DrawLine(axisPen, new Point(xAxisOffset - 5, topOffset + yAxisLength), new Point(xAxisOffset + xAxisLength + 5, topOffset + yAxisLength));
context.DrawText(new FormattedText(MinValue.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + 5, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 250));
context.DrawText(new FormattedText(MaxValue.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + 5 + xAxisLength, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 250));
context.DrawText(new FormattedText("Time", CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + (xAxisLength / 2), topOffset + yAxisLength + 60));
var dateDistance = (MaxTimestamp - MinTimestamp).Ticks / numberOfTicks;
for (var i = 0; i < numberOfTicks; i++)
{
var date = MinTimestamp + new TimeSpan(i * dateDistance);
var xValue = (1 - ((MaxTimestamp - date).TotalSeconds / (MaxTimestamp - MinTimestamp).TotalSeconds)) * xAxisLength + xAxisOffset;
context.DrawLine(axisTickPen, new Point(xValue, topOffset + yAxisLength), new Point(xValue, topOffset + yAxisLength + 20));
context.DrawText(new FormattedText(date.ToString("yyyy/MM/dd HH:mm"), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, fontSize, fontBrush), new Point(xValue, topOffset + yAxisLength + 10));
}
context.PushTransform(new RotateTransform(90));
context.DrawText(new FormattedText("Depth", CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point((topOffset + (yAxisLength / 2)), -headerFontSize * 2));
context.Pop();
if (_depths != null)
foreach (var depthYValue in _depths)
{
context.DrawText(new FormattedText(depthYValue.Depth.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, fontSize, fontBrush), new Point(xAxisOffset - 100, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength));
context.DrawLine(axisTickPen, new Point(xAxisOffset - 25, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength + (axisTickPen.Thickness / 2)), new Point(xAxisOffset, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength + (axisTickPen.Thickness / 2)));
}
}
_heatMapGraph.Render(drawingVisual);
}
private void RenderGraph()
{
ClearRenderTargetBitmap(_heatMapGraph, Brushes.White);
const double xAxisOffset = 250;
const double yAxisOffset = 500;
const double topOffset = 50;
const double rightOffset = 250;
var xAxisLength = _heatMapGraph.PixelWidth - (int)xAxisOffset - (int)rightOffset;
var yAxisLength = _heatMapGraph.PixelHeight - (int)yAxisOffset - (int)topOffset;
const double axisThickness = 10;
var axisPen = new Pen(Brushes.Black, axisThickness);
var axisTickPen = new Pen(Brushes.Black, axisThickness / 2);
DrawHeatMap();
var heatMapRect = new Rectangle
{
Fill = new ImageBrush(_heatMap)
{
Stretch = Stretch.Uniform
},
Effect = _heatMapColourEffect
};
var heatMapRectSize = new Size(xAxisLength, yAxisLength);
heatMapRect.Measure(heatMapRectSize);
heatMapRect.Arrange(new Rect(new Point(xAxisOffset + 5, topOffset), heatMapRectSize));
_heatMapGraph.Render(heatMapRect);
var heatMapKeyWidth = xAxisLength;
const int heatMapKeyHeight = 100;
var heatMapKeyRect = new Rectangle
{
Fill = new ImageBrush(DrawHeatKey(heatMapKeyWidth, heatMapKeyHeight)),
Effect = _heatMapColourEffect
};
var heatMapKeySize = new Size(heatMapKeyWidth, heatMapKeyHeight);
heatMapKeyRect.Measure(heatMapKeySize);
heatMapKeyRect.Arrange(new Rect(new Point(xAxisOffset + 5, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 150), heatMapKeySize));
_heatMapGraph.Render(heatMapKeyRect);
var drawingVisual = new DrawingVisual();
var textTypeFace = new Typeface(new FontFamily("Arial"), FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
const double headerFontSize = 80d;
const double fontSize = 40d;
const int numberOfTicks = 10;
var fontBrush = Brushes.Black;
using (var context = drawingVisual.RenderOpen())
{
//Y Axis
context.DrawLine(axisPen, new Point(xAxisOffset, topOffset), new Point(xAxisOffset, topOffset + yAxisLength));
//X Axis
context.DrawLine(axisPen, new Point(xAxisOffset - 5, topOffset + yAxisLength), new Point(xAxisOffset + xAxisLength + 5, topOffset + yAxisLength));
context.DrawText(new FormattedText(MinValue.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + 5, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 250));
context.DrawText(new FormattedText(MaxValue.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + 5 + xAxisLength, _heatMapGraph.PixelHeight - yAxisOffset + topOffset + 250));
context.DrawText(new FormattedText("Time", CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point(xAxisOffset + (xAxisLength / 2), topOffset + yAxisLength + 60));
var dateDistance = (MaxTimestamp - MinTimestamp).Ticks / numberOfTicks;
for (var i = 0; i < numberOfTicks; i++)
{
var date = MinTimestamp + new TimeSpan(i * dateDistance);
var xValue = (1 - ((MaxTimestamp - date).TotalSeconds / (MaxTimestamp - MinTimestamp).TotalSeconds)) * xAxisLength + xAxisOffset;
context.DrawLine(axisTickPen, new Point(xValue, topOffset + yAxisLength), new Point(xValue, topOffset + yAxisLength + 20));
context.DrawText(new FormattedText(date.ToString("yyyy/MM/dd HH:mm"), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, fontSize, fontBrush), new Point(xValue, topOffset + yAxisLength + 10));
}
context.PushTransform(new RotateTransform(90));
context.DrawText(new FormattedText("Depth", CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, headerFontSize, fontBrush), new Point((topOffset + (yAxisLength / 2)), -headerFontSize * 2));
context.Pop();
if (_depths != null)
{
foreach (var depthYValue in _depths)
{
context.DrawText(new FormattedText(depthYValue.Depth.ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture, FlowDirection.LeftToRight, textTypeFace, fontSize, fontBrush), new Point(xAxisOffset - 100, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength));
context.DrawLine(axisTickPen, new Point(xAxisOffset - 25, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength + (axisTickPen.Thickness / 2)), new Point(xAxisOffset, topOffset + (depthYValue.YValue / _heatMap.PixelHeight) * yAxisLength + (axisTickPen.Thickness / 2)));
}
}
}
_heatMapGraph.Render(drawingVisual);
}
private void SnapshotCurrentImage()
{
if (IsComicLoaded())
{
_cacheManager.UseCurrentImageStream((stream, imageName, containerName) =>
{
var fileName = containerName + " - " + imageName;
if (!(Directory.Exists(SNAPSHOT_PATH)))
{
Directory.CreateDirectory(SNAPSHOT_PATH);
}
var shaderEffect = imageViewbox.Effect;
// If no effect is applied, then save source image directly to snapshot folder
// otherwise, use image with effect applied and save as jpeg to snapshot folder
if (shaderEffect == null)
{
var filePath = IOPath.Combine(SNAPSHOT_PATH, fileName);
// No shader effects are applied so write the source image stream directly to file
using (var fileStream = File.OpenWrite(filePath))
{
stream.CopyTo(fileStream);
}
}
else
{
//Note: Effect must be compiled to PixelShader version 2.0 otherwise, the effect
// will be ignored when RenderTargetBitmap() is used. Limitation of WPF.
var imageSource = (BitmapSource)comicImage.Source;
// Create a Rectangle shape, fill its background with the current comic image
// and apply the same shader effect
var rectangle = new System.Windows.Shapes.Rectangle();
rectangle.Fill = new ImageBrush(imageSource);
rectangle.Effect = shaderEffect;
// Resize the Rectangle to full image size
var size = new Size(imageSource.PixelWidth, imageSource.PixelHeight);
rectangle.Measure(size);
rectangle.Arrange(new Rect(size));
//TODO: 96 is hardcoded for my monitor. Make it device dependent
// or find a different method to save effect on image
var renderTargetBitmap = new RenderTargetBitmap(
imageSource.PixelWidth,
imageSource.PixelHeight,
96,
96,
PixelFormats.Pbgra32);
renderTargetBitmap.Render(rectangle);
var rerenderedFilename = IOPath.GetFileNameWithoutExtension(fileName);
var encoder = new JpegBitmapEncoder
{
QualityLevel = 95
};
var bitmapFrame = BitmapFrame.Create(renderTargetBitmap);
encoder.Frames.Add(bitmapFrame);
var filePath = IOPath.Combine(SNAPSHOT_PATH, rerenderedFilename + ".jpeg");
using (var fileStream = File.OpenWrite(filePath))
{
encoder.Save(fileStream);
}
}
DisplayMessage(string.Format("Snapshot '{0}'", fileName));
});
}
}
/// <summary>
/// Helper method to create a 4:3 solid color image.
/// </summary>
/// <param name="brush">The brush to use to fill the image.</param>
/// <returns>The created image.</returns>
private static ImageSource CreateColorImage(Brush brush)
{
RenderTargetBitmap rtb = new RenderTargetBitmap(4, 3, 96, 96, System.Windows.Media.PixelFormats.Pbgra32);
var rect = new System.Windows.Shapes.Rectangle { Width = 4, Height = 3, Fill = brush };
rect.Arrange(new System.Windows.Rect(0, 0, rect.Width, rect.Height));
rtb.Render(rect);
return rtb;
}