public async Task Save(StorageFile file)
{
var image = GetImage();
// Measure the extent of the image (which may be cropped).
Rect imageBounds;
using (var commandList = new CanvasCommandList(sourceBitmap.Device))
using (var drawingSession = commandList.CreateDrawingSession())
{
imageBounds = image.GetBounds(drawingSession);
}
// Rasterize the image into a rendertarget.
using (var renderTarget = new CanvasRenderTarget(sourceBitmap.Device, (float)imageBounds.Width, (float)imageBounds.Height, 96))
{
using (var drawingSession = renderTarget.CreateDrawingSession())
{
drawingSession.Blend = CanvasBlend.Copy;
drawingSession.DrawImage(image, -(float)imageBounds.X, -(float)imageBounds.Y);
}
// Save it out.
var format = file.FileType.Equals(".png", StringComparison.OrdinalIgnoreCase) ? CanvasBitmapFileFormat.Png : CanvasBitmapFileFormat.Jpeg;
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
stream.Size = 0;
await renderTarget.SaveAsync(stream, format);
}
}
}
public void ProcessFrame(ProcessVideoFrameContext context)
{
var inputSurface = context.InputFrame.Direct3DSurface;
var outputSurface = context.OutputFrame.Direct3DSurface;
using (var inputBitmap = CanvasBitmap.CreateFromDirect3D11Surface(canvasDevice, inputSurface))
using (var renderTarget = CanvasRenderTarget.CreateFromDirect3D11Surface(canvasDevice, outputSurface))
using (var ds = renderTarget.CreateDrawingSession())
using (var brush = new CanvasImageBrush(canvasDevice, inputBitmap))
using (var textCommandList = new CanvasCommandList(canvasDevice))
{
using (var clds = textCommandList.CreateDrawingSession())
{
clds.DrawText(
"Win2D\nMediaClip",
(float)inputBitmap.Size.Width / 2,
(float)inputBitmap.Size.Height / 2,
brush,
new CanvasTextFormat()
{
FontSize = (float)inputBitmap.Size.Width / 5,
FontWeight = new FontWeight() { Weight = 999 },
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Center
});
}
var background = new GaussianBlurEffect()
{
BlurAmount = 10,
BorderMode = EffectBorderMode.Hard,
Source = new BrightnessEffect()
{
BlackPoint = new Vector2(0.5f, 0.7f),
Source = new SaturationEffect()
{
Saturation = 0,
Source = inputBitmap
}
}
};
var shadow = new ShadowEffect()
{
Source = textCommandList,
BlurAmount = 10
};
var composite = new CompositeEffect()
{
Sources = { background, shadow, textCommandList }
};
ds.DrawImage(composite);
}
}
//CanvasControl raises Draw whenever your app needs to draw or redraw its content.
private void canvas_Draw(Microsoft.Graphics.Canvas.UI.Xaml.CanvasControl sender, Microsoft.Graphics.Canvas.UI.Xaml.CanvasDrawEventArgs args)
{
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
for (int i = 0; i < 100; i++)
{
clds.DrawText("Hello, World!", RndPosition(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
clds.DrawCircle(RndPosition(), RndRadius(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
clds.DrawLine(RndPosition(), RndPosition(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
}
}
GaussianBlurEffect blur1 = new GaussianBlurEffect();
blur1.Source = cl;
blur1.BlurAmount = 10.0f;
args.DrawingSession.DrawImage(blur1);
}
private void Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (_contentPresenter == null)
{
return;
}
Border border = VisualTreeHelper.GetChild(_contentPresenter, 0) as Border;
if (border == null)
{
return;
}
Point borderPoint = border.TransformToVisual(this).TransformPoint(new Point(0, 0));
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.FillRoundedRectangle(new Rect(borderPoint.X, borderPoint.Y, border.ActualWidth, border.ActualHeight), (float)border.CornerRadius.TopLeft, (float)border.CornerRadius.TopLeft, Color.FromArgb(128, 0, 0, 0));
}
Transform2DEffect shadowEffect = new Transform2DEffect
{
Source =
new Transform2DEffect
{
Source = new ShadowEffect
{
BlurAmount = 2,
ShadowColor = Color.FromArgb(160, 0, 0, 0),
Source = cl
},
TransformMatrix = Matrix3x2.CreateScale(1.0f, new Vector2((float)(border.ActualWidth / 2), ((float)border.ActualHeight / 2)))
},
TransformMatrix = Matrix3x2.CreateTranslation(0, 1)
};
args.DrawingSession.DrawImage(shadowEffect);
}
private void Canvas_Draw(ICanvasAnimatedControl sender, CanvasAnimatedDrawEventArgs args)
{
using (var session = args.DrawingSession)
{
foreach (var temp in FireflyParticle)
{
using (var cl = new CanvasCommandList(session))
using (var ds = cl.CreateDrawingSession())
{
var c = temp.CenterColor;
c.A = (byte)(temp.OpColor * 255);
ds.FillCircle((float)temp.Point.X, (float)temp.Point.Y, (float)temp.Radius, c);
using (var glow = new GlowEffectGraph())
{
glow.Setup(cl, temp.Radius);
session.DrawImage(glow.Blur);
}
}
}
}
}
private void DoEffect(CanvasDrawingSession ds, Size size, float amount)
{
size.Width = size.Width - ExpandAmount;
size.Height = size.Height - ExpandAmount;
var offset = (float)(ExpandAmount / 2);
using (var textLayout = CreateTextLayout(ds, size))
using (var textCommandList = new CanvasCommandList(ds))
{
using (var textDs = textCommandList.CreateDrawingSession())
{
textDs.DrawTextLayout(textLayout, 0, 0, GlowColor);
}
glowEffectGraph.Setup(textCommandList, amount);
ds.DrawImage(glowEffectGraph.Output, offset, offset);
ds.DrawTextLayout(textLayout, offset, offset, TextColor);
}
}
// 设置画笔（R：Radius）
public void PaintSet(ICanvasResourceCreator rc, float R, Color co)
{
//Paint：绘画
Paint = new CanvasCommandList(rc);
using (CanvasDrawingSession ds = Paint.CreateDrawingSession())
{
ds.FillEllipse(0, 0, R, R, PaintBrush(rc, R, PaintHard, PaintOpacity, co));
}
//Show：展示
var radius = (float)Math.Sqrt(R);
PaintShow = new CanvasCommandList(rc);
using (CanvasDrawingSession ds = PaintShow.CreateDrawingSession())
{
ds.FillEllipse(0, 0, radius, radius, PaintBrush(rc, radius, PaintHard, PaintOpacity, Colors.White));
}
}
private void Canvas_Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (this.Content == null || this._pixels == null || this._pixelWidth <= 0 || this._pixelHeight <= 0)
{
args.DrawingSession.Clear(sender.ClearColor);
}
else
{
GeneralTransform transform = this.Content.TransformToVisual(sender);
Vector2 location = transform.TransformPoint(new Point()).ToVector2();
using (CanvasCommandList cl = new CanvasCommandList(sender))
{
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
using (CanvasBitmap bitmap = CanvasBitmap.CreateFromBytes(sender, this._pixels, this._pixelWidth, this._pixelHeight, DirectXPixelFormat.B8G8R8A8UIntNormalized, DisplayInformation.GetForCurrentView().LogicalDpi))
{
clds.DrawImage(bitmap, location);
}
}
float translateX = (float)(Math.Cos(Math.PI / 180.0d * this.Direction) * this.Depth);
float translateY = 0 - (float)(Math.Sin(Math.PI / 180.0d * this.Direction) * this.Depth);
Transform2DEffect finalEffect = new Transform2DEffect()
{
Source = new ShadowEffect()
{
Source = cl,
BlurAmount = this.BlurAmount,
ShadowColor = this.GetShadowColor(),
Optimization = this.Optimization
},
TransformMatrix = Matrix3x2.CreateTranslation(translateX, translateY)
};
args.DrawingSession.DrawImage(finalEffect);
}
}
}
//CreateResources is an event that is fired only when Win2D determines you need to recreate your visual resources, such as when the page is loaded.
private void canvas_CreateResources(Microsoft.Graphics.Canvas.UI.Xaml.CanvasAnimatedControl sender, Microsoft.Graphics.Canvas.UI.CanvasCreateResourcesEventArgs args)
{
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
for (int i = 0; i < 100; i++)
{
clds.DrawText("Hello, World!", RndPosition(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
clds.DrawCircle(RndPosition(), RndRadius(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
clds.DrawLine(RndPosition(), RndPosition(), Color.FromArgb(255, RndByte(), RndByte(), RndByte()));
}
}
blur = new GaussianBlurEffect()
{
Source = cl,
BlurAmount = 10.0f
};
System.Diagnostics.Debug.WriteLine("Create" + ">>>" + j++);
}
public void Draw(ICanvasAnimatedControl sender, CanvasDrawingSession drawingSession)
{
if (currentThunder == null)
{
return;
}
// 保护原先画布的混合模式
var previousBlend = drawingSession.Blend;
drawingSession.Blend = blendState;
var builder = new CanvasPathBuilder(sender);
builder.BeginFigure(0, 0);
for (int i = 0; i < currentThunder.LifeLong; i++)
{
builder.AddLine(currentThunder.Path[i].X, currentThunder.Path[i].Y);
}
builder.EndFigure(CanvasFigureLoop.Open);
builder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
// Draw the particle.
var path = CanvasGeometry.CreatePath(builder);
var NormalizeLifeTime = currentThunder.TimeSinceStart / currentThunder.Duration;
byte opacity = (byte)((NormalizeLifeTime - 1) * (NormalizeLifeTime - 1) * 255);
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawGeometry(path, currentThunder.Position, Color.FromArgb((byte)(0.75f * opacity), 255, 255, 255), 6 * currentThunder.Luminace);
}
var lightAmount = 20.6f * currentThunder.Luminace * (NormalizeLifeTime - 1) * (NormalizeLifeTime - 1);
blur.Source = cl;
blur.BlurAmount = lightAmount;
drawingSession.DrawImage(blur);
drawingSession.DrawGeometry(path, currentThunder.Position, Color.FromArgb(opacity, 255, 240, 180), 2 * currentThunder.Luminace);
drawingSession.Blend = previousBlend;
if (NormalizeLifeTime > 1)
{
currentThunder = null;
}
}
public void DrawInkDoesNotModifyContextState()
{
Point[] points =
{
new Point(0, 0),
new Point(100, 100),
};
var strokeBuilder = new InkStrokeBuilder();
var stroke1 = strokeBuilder.CreateStroke(points);
strokeBuilder.SetDefaultDrawingAttributes(new InkDrawingAttributes
{
Color = Colors.Yellow,
DrawAsHighlighter = true
});
var stroke2 = strokeBuilder.CreateStroke(points);
using (var device = new CanvasDevice())
using (var target = new CanvasCommandList(device))
using (var drawingSession = target.CreateDrawingSession())
{
var originalProperties = GetPropertyValues(drawingSession);
drawingSession.DrawInk(new InkStroke[] { stroke1 });
var propertiesAfterDraw1 = GetPropertyValues(drawingSession);
drawingSession.DrawInk(new InkStroke[] { stroke2 });
var propertiesAfterDraw2 = GetPropertyValues(drawingSession);
CollectionAssert.AreEqual(originalProperties, propertiesAfterDraw1);
CollectionAssert.AreEqual(originalProperties, propertiesAfterDraw2);
}
}
public void DrawInkDoesNotModifyContextState()
{
Point[] points =
{
new Point(0, 0),
new Point(100, 100),
};
var strokeBuilder = new InkStrokeBuilder();
var stroke1 = strokeBuilder.CreateStroke(points);
strokeBuilder.SetDefaultDrawingAttributes(new InkDrawingAttributes
{
Color = Colors.Yellow,
DrawAsHighlighter = true
});
var stroke2 = strokeBuilder.CreateStroke(points);
using (var device = new CanvasDevice())
using (var target = new CanvasCommandList(device))
using (var drawingSession = target.CreateDrawingSession())
{
var originalProperties = GetPropertyValues(drawingSession);
drawingSession.DrawInk(new InkStroke[] { stroke1 });
var propertiesAfterDraw1 = GetPropertyValues(drawingSession);
drawingSession.DrawInk(new InkStroke[] { stroke2 });
var propertiesAfterDraw2 = GetPropertyValues(drawingSession);
CollectionAssert.AreEqual(originalProperties, propertiesAfterDraw1);
CollectionAssert.AreEqual(originalProperties, propertiesAfterDraw2);
}
}
private void Canvas_Draw(ICanvasAnimatedControl sender, CanvasAnimatedDrawEventArgs args)
{
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
if (this._bytes != null)
{
using (CanvasBitmap bitmap = CanvasBitmap.CreateFromBytes(sender, this._bytes, this._widthInPixels, this._heightInPixels, DirectXPixelFormat.B8G8R8A8UIntNormalized, this._dpi))
{
clds.DrawImage(bitmap);
}
clds.FillRectangle(0, 0, this._widthInPixels, this._heightInPixels, this._maskColor);
}
else
{
clds.FillRectangle(0, 0, (float)sender.Size.Width, (float)sender.Size.Height, this._maskColor);
}
}
this._effect.Source = cl;
args.DrawingSession.DrawImage(this._effect);
}
static ICanvasImage RealizeEffect(CanvasDevice device, TypeInfo effectType, IGraphicsEffect effect)
{
var dummySourceImage = new CanvasCommandList(device);
// We can't realize an effect with invalid inputs, so must first set them all to something reasonable.
foreach (var sourceProperty in effectType.DeclaredProperties.Where(p => p.PropertyType == typeof(IGraphicsEffectSource)))
{
sourceProperty.SetValue(effect, dummySourceImage);
}
// Add one image to any variable size Sources collection properties.
foreach (var sourcesProperty in effectType.DeclaredProperties.Where(p => p.Name == "Sources"))
{
var sources = sourcesProperty.GetValue(effect) as IList <IGraphicsEffectSource>;
sources.Clear();
sources.Add(dummySourceImage);
}
EffectAccessor.RealizeEffect(device, effect);
return(dummySourceImage);
}
private void canvasWin2d_Draw(ICanvasAnimatedControl sender, CanvasAnimatedDrawEventArgs args)
{
CanvasCommandList ccl = new CanvasCommandList(sender);
using (CanvasDrawingSession cds = ccl.CreateDrawingSession())
{
// Loop over all the particles.
for (int i = 0; i < maxParticles; i++)
{
// Draw
cds.FillEllipse(
(float)particles[i].newLeft, (float)particles[i].newTop,
radius, radius, particles[i].col1
);
}
}
GaussianBlurEffect gb = new GaussianBlurEffect();
gb.Source = ccl;
gb.BlurAmount = 5.0f;
args.DrawingSession.DrawImage(gb);
}
void CreateLinearGradient(ICanvasResourceCreator resourceCreator)
{
var commandList = new CanvasCommandList(resourceCreator);
using (var drawingSession = commandList.CreateDrawingSession())
{
var brush = new CanvasLinearGradientBrush(resourceCreator, Colors.White, Colors.Black)
{
StartPoint = new Vector2(-tigerSize.X / 4, 0),
EndPoint = new Vector2(tigerSize.X * 5 / 4, 0),
};
// Expand the bounds to avoid going past the edge of the gradient as we rotate it.
var expandedBounds = new Rect((-tigerSize).ToPoint(), (tigerSize * 2).ToPoint());
drawingSession.FillRectangle(expandedBounds, brush);
}
linearGradient = new Transform2DEffect
{
Source = commandList
};
}
//方法：设置（写到创建资源事件里）
public void Set(ICanvasResourceCreator rc, float sx, float sy, ICanvasImage ci)
{
//放大
ScaleEffect se = new ScaleEffect
{
Source = ci,
Scale = new Vector2(1 / sx, 1 / sy),
InterpolationMode = CanvasImageInterpolation.NearestNeighbor,
};
//剪裁四周的边线
var rect = se.GetBounds(rc);
CropEffect sce = new CropEffect
{
Source = se,
SourceRectangle = new Rect(2, 2, rect.Width - 4, rect.Height - 4),
};
//恢复正常大小
CanvasCommandList ccl = new CanvasCommandList(rc);
using (var ds = ccl.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
ds.DrawImage(sce);
}
//变成线框
Image = new LuminanceToAlphaEffect //亮度转不透明度
{
Source = new EdgeDetectionEffect //边缘检测
{
Amount = 1,
Source = ccl
},
};
}
private void OnWin2DDraw(ICanvasAnimatedControl sender, CanvasAnimatedDrawEventArgs args)
{
if (panel != null && gooeyButtonItemsProperty != null && property.BackgroundColor.HasValue)
{
var source = new CanvasCommandList(sender);
using (var ds = source.CreateDrawingSession())
{
ds.FillCircle(property.CenterPoint, (float)property.Radius - 1f, new CanvasSolidColorBrush(sender, property.BackgroundColor.Value)
{
Opacity = (float)property.Opacity
});
foreach (var item in gooeyButtonItemsProperty)
{
if (item.BackgroundColor.HasValue)
{
ds.FillCircle(property.CenterPoint.X + (float)item.TranslateX, property.CenterPoint.Y + (float)item.TranslateY, (float)item.Radius, new CanvasSolidColorBrush(sender, item.BackgroundColor.Value)
{
Opacity = (float)item.Opacity
});
}
}
}
if (property.BlurAmount > 0)
{
effect.BlurAmount = (float)property.BlurAmount;
effect.Source = source;
args.DrawingSession.DrawImage(image);
}
else
{
args.DrawingSession.DrawImage(source);
}
}
}
protected void DrawOuterCircle(CanvasControl sender, CanvasDrawEventArgs args)
{
var ds = args.DrawingSession;
Color edgeColor = this.GaugeColor;
if (IsLowAlarmEnabled && (Value <= LowAlarmValue) && IsOnline)
{
edgeColor = LowAlarmColor;
}
else if (IsLowWarningEnabled && (Value <= LowWarningValue) && IsOnline)
{
edgeColor = LowWarningColor;
}
else if (IsHighAlarmEnabled && (Value >= HighAlarmValue) && IsOnline)
{
edgeColor = HighAlarmColor;
}
else if (IsHighWarningEnabled && (Value >= HighWarningValue) && IsOnline)
{
edgeColor = HighWarningColor;
}
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawCircle(Center, OuterCircleRadius, edgeColor, outerCircleThickness);
}
GaussianBlurEffect blur = new GaussianBlurEffect();
blur.Source = cl;
blur.BlurAmount = 3.0f;
args.DrawingSession.DrawImage(blur);
}
void CreateLinearGradient(ICanvasResourceCreator resourceCreator)
{
var commandList = new CanvasCommandList(resourceCreator);
using (var drawingSession = commandList.CreateDrawingSession())
{
var brush = new CanvasLinearGradientBrush(resourceCreator, Colors.White, Colors.Black)
{
StartPoint = new Vector2(-tigerSize.X / 4, 0),
EndPoint = new Vector2(tigerSize.X * 5 / 4, 0),
};
drawingSession.FillRectangle(bitmapTiger.Bounds, brush);
}
// Wrap the gradient with a border effect to avoid edge artifacts as we rotate it.
linearGradient = new Transform2DEffect
{
Source = new BorderEffect
{
Source = commandList
}
};
}
private void DoPathEffect(CanvasControl sender, CanvasDrawingSession ds)
{
using (var thBuilder = new Microsoft.Graphics.Canvas.Geometry.CanvasPathBuilder(sender))
{
var pthConverter = new PathToD2DPathGeometryConverter();
foreach (var path in _paths)
{
var offset = (float)ExpandAmount / 2;
using (var cl = new CanvasCommandList(ds))
using (var pthGeo = pthConverter.parse(path, thBuilder))
{
using (var clds = cl.CreateDrawingSession())
{
clds.FillGeometry(pthGeo, 0, 0, GlowColor);
}
_eg.Setup(cl, (float)GlowAmount, GlowColor);
ds.DrawImage(_eg.Output, offset, offset);
ds.FillGeometry(pthGeo, offset, offset, ((SolidColorBrush)GlowFill).Color);
}
}
}
}
private void Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (_contentPresenter == null) return;
var border = VisualTreeHelper.GetChild(_contentPresenter, 0) as Border;
if (border == null) return;
var borderPoint = border.TransformToVisual(this).TransformPoint(new Point(0, 0));
var cl = new CanvasCommandList(sender);
using (var clds = cl.CreateDrawingSession())
{
clds.FillRoundedRectangle(new Rect(borderPoint.X, borderPoint.Y, border.ActualWidth, border.ActualHeight), (float)border.CornerRadius.TopLeft, (float)border.CornerRadius.TopLeft, Color.FromArgb(128, 0, 0, 0));
}
var shadowEffect = new Transform2DEffect
{
Source =
new Transform2DEffect
{
Source = new ShadowEffect
{
BlurAmount = 2,
ShadowColor = Color.FromArgb(160, 0, 0, 0),
Source = cl
},
//TODO not doing any scaling right now, confirm with larger shadows
TransformMatrix = Matrix3x2.CreateScale(1.0f, new Vector2((float)(border.ActualWidth / 2), ((float)border.ActualHeight / 2)))
},
TransformMatrix = Matrix3x2.CreateTranslation(0, 1)
};
args.DrawingSession.DrawImage(shadowEffect);
// args.DrawingSession.DrawImage(cl);
}
private async void DoStreamsEffect(CanvasControl sender, CanvasDrawingSession ds)
{
foreach (var stream in _streams)
{
var offset = (float)ExpandAmount / 2;
using (var cl = new CanvasCommandList(ds))
{
using (var clds = cl.CreateDrawingSession())
{
stream.Seek(0);
var canvasbmp = await CanvasBitmap.LoadAsync(sender, stream);
clds.DrawImage(canvasbmp, 0, 0);
}
_eg.Setup(cl, (float)GlowAmount, GlowColor);
ds.DrawImage(_eg.Output, offset, offset);
}
}
}
public override CanvasCommandList GetChartImage()
{
if (Values == null || Values.GroupCount == 0 ||
Style?.ChartType != ChartType.Line)
{
return(null);
}
var style = (LineChartStyle)Style;
var colorSpace = Style.ColorSpace.Select(ColorConverter.ConvertHexToColor).ToList();
var device = CanvasDevice.GetSharedDevice();
var commandList = new CanvasCommandList(device);
using (var session = commandList.CreateDrawingSession())
{
var titleLayout = ChartDrawHelper.CreateCanvasText(device, Values.Title, style.TitleFormat);
var titleRect = titleLayout.LayoutBounds;
if (Values.IsShowTitle)
{
session.DrawTextLayout(titleLayout, new Vector2(),
ColorConverter.ConvertHexToColor(style.TitleFormat.Foreground));
}
titleLayout.Dispose();
var maxValue = Values.Data.Select(o => o.Max()).Max();
var maxMarkerValue = (float)ValueFormatHelper.Ceiling(maxValue, 2);
var axisGeo = ChartDrawHelper.GetAxis(device, style.AxisStyle, style.DataAreaWidth, maxMarkerValue);
var axisRect = axisGeo.AxisLine.ComputeBounds();
axisRect.Union(axisGeo.AxisValueMarker.GetBounds(device));
var axisOffset =
new Point((titleRect.Width - axisRect.Width) / 2 - axisRect.X,
titleRect.Height + style.TitleFormat.Thickness.Bottom - axisRect.Y).ToVector2();
using (var axisCommandList = new CanvasCommandList(session))
{
using (var axisDrawSession = axisCommandList.CreateDrawingSession())
{
axisDrawSession.Transform = Matrix3x2.CreateTranslation(axisOffset);
axisDrawSession.DrawGeometry(axisGeo.AxisLine,
ColorConverter.ConvertHexToColor(style.AxisStyle.LineColor), style.AxisStyle.LineWidth);
axisDrawSession.FillGeometry(axisGeo.AxisArrow,
ColorConverter.ConvertHexToColor(style.AxisStyle.LineColor));
axisDrawSession.DrawImage(axisGeo.AxisValueMarker);
}
session.DrawImage(axisCommandList);
}
axisGeo.Dispose();
var maxValueHeight = maxValue / maxMarkerValue * axisGeo.DataRect.Height;
var lineGeos = GetLineChart(device, style, Values.Data, (float)maxValueHeight, style.DataAreaWidth,
style.DataLabelFormat, Style.ColorSpace);
var dataOffset = axisOffset +
new Point(axisGeo.DataRect.X, axisGeo.DataRect.Y + axisGeo.DataRect.Height)
.ToVector2();
using (var dataCommandList = new CanvasCommandList(session))
{
using (var drawSession = dataCommandList.CreateDrawingSession())
{
drawSession.Transform = Matrix3x2.CreateTranslation(dataOffset);
for (int i = 0; i < lineGeos.Count; i++)
{
drawSession.DrawGeometry(lineGeos[i].LineGeometry, colorSpace[i % colorSpace.Count],
style.LineWidth);
foreach (var dot in lineGeos[i].DotGeometries)
{
drawSession.FillGeometry(dot, colorSpace[i % colorSpace.Count]);
}
if (Values.IsShowDataValues)
{
drawSession.DrawImage(lineGeos[i].DataLabels);
}
lineGeos[i].Dispose();
}
}
session.DrawImage(dataCommandList);
}
if (Values.IsShowGroupLabels)
{
var markerPoints = new List <Vector2>();
var markerStrs = new List <string>();
var groupLength = style.DataAreaWidth / (Values.GroupCount - 1);
for (int i = 0; i < Values.GroupCount; i++)
{
var markerPoint = new Vector2(i * groupLength, 0);
markerPoints.Add(markerPoint);
markerStrs.Add(Values.GroupLabels[i]);
}
var groupLabels = ChartDrawHelper.CreateValueMarker(device, style.GroupLabelFormat, markerPoints,
markerStrs,
MarkerPosition.Bottom);
var groupLabelsOffset = axisOffset +
new Vector2(
style.AxisStyle.StartOffset, 0);
using (var dataCommandList = new CanvasCommandList(session))
{
using (var drawSession = dataCommandList.CreateDrawingSession())
{
drawSession.Transform = Matrix3x2.CreateTranslation(groupLabelsOffset);
drawSession.DrawImage(groupLabels);
}
session.DrawImage(dataCommandList);
}
groupLabels.Dispose();
}
if (Values.IsShowLegend)
{
var legendLabels = Values.LegendItemLabels.Take(Values.LegendItemCount).ToList();
var legend = ChartDrawHelper.CreateLegend(device, style.LegendStyle,
legendLabels, colorSpace, Values.LegendPosition);
var legendRect = legend.GetBounds(device);
switch (Values.LegendPosition)
{
case LegendPosition.Right:
var rightOffset =
new Point(
axisOffset.X + axisRect.Width + style.LegendStyle.Thickness.Left - legendRect.X,
axisOffset.Y - legendRect.Height - legendRect.Y)
.ToVector2();
session.DrawImage(legend, rightOffset);
break;
case LegendPosition.Bottom:
var bottomOffset =
new Point(
(titleRect.Width - legendRect.Width) / 2 - legendRect.X,
axisOffset.Y + style.LegendStyle.Thickness.Top - legendRect.Y)
.ToVector2();
session.DrawImage(legend, bottomOffset);
break;
}
legend.Dispose();
}
return(commandList);
}
}
private void CanvasControl_OnCreateResources(CanvasAnimatedControl sender, CanvasCreateResourcesEventArgs args)
{
//init tanks
InitTanks();
foreach (var tank in Tanks)
{
CanvasCommandList ccl = new CanvasCommandList(sender);
using (CanvasDrawingSession cds = ccl.CreateDrawingSession())
{
//draw each tank
//tank base
cds.DrawRectangle(new Rect(-tank.size / 2, -tank.size / 2, tank.size * 2, tank.size), FractionColors[tank.fraction]);
//cannon
cds.DrawRectangle(new Rect(-tank.size / 2, -tank.size / 2 + (tank.size / 1.5f), tank.size * 3, tank.size / 2), FractionColors[tank.fraction]);
//"wheels"
}
//set the effect source
tank.rotationEffect.Source = ccl;
tank.translationEffect.Source = tank.rotationEffect;
}
CanvasCommandList pccl = new CanvasCommandList(sender);
using (CanvasDrawingSession pds = pccl.CreateDrawingSession())
{
pds.DrawCircle(0, 0, 5.0f, new CanvasSolidColorBrush(pds, Colors.Yellow));
}
projectilePrototype.translationEffect = new Transform2DEffect();
projectilePrototype.translationEffect.Source = pccl;
}
private void DoEffect(CanvasDrawingSession ds, Size size, float amount, Windows.UI.Color glowColor, Windows.UI.Color fillColor, double expandAmount)
{
var offset = (float)expandAmount / 2;
//using (var textLayout = CreateTextLayout(ds, size))
using (var cl = new CanvasCommandList(ds))
{
using (var clds = cl.CreateDrawingSession())
{
clds.FillRectangle(0, 0, (float)size.Width, (float)size.Height, glowColor);
}
glowEffectGraph.Setup(cl, amount);
ds.DrawImage(glowEffectGraph.Output, offset, offset);
ds.FillRectangle(offset, offset, (float)size.Width, (float)size.Height, fillColor);
}
}
private void DoEffect(CanvasDrawingSession ds, Size size, float amount)
{
size.Width = size.Width - ExpandAmount;
size.Height = size.Height - ExpandAmount;
var offset = (float)(ExpandAmount / 2);
using (var textLayout = CreateTextLayout(ds, size))
using (var textCommandList = new CanvasCommandList(ds))
{
using (var textDs = textCommandList.CreateDrawingSession())
{
textDs.DrawTextLayout(textLayout, 0, 0, GlowColor);
}
glowEffectGraph.Setup(textCommandList, amount);
ds.DrawImage(glowEffectGraph.Output, offset, offset);
ds.DrawTextLayout(textLayout, offset, offset, TextColor);
}
}
private void Canvas_Draw(ICanvasAnimatedControl sender, CanvasAnimatedDrawEventArgs args)
{
var cl = new CanvasCommandList(sender);
using (var clds = cl.CreateDrawingSession())
{
if (_bytes != null)
{
using (var bitmap = CanvasBitmap.CreateFromBytes(sender, _bytes, _widthInPixels, _heightInPixels, DirectXPixelFormat.B8G8R8A8UIntNormalized, _dpi))
{
clds.DrawImage(bitmap);
}
clds.FillRectangle(0, 0, _widthInPixels, _heightInPixels, _maskColor);
}
else
{
clds.FillRectangle(0, 0, (float)sender.Size.Width, (float)sender.Size.Height, _maskColor);
}
}
_effect.Source = cl;
args.DrawingSession.DrawImage(_effect);
}
void DrawShadow(CanvasControl canvasCtrl, CanvasDrawingSession drawSession, List<ShadowParam> shadowParams)
{
var canvasCommandList = new CanvasCommandList(canvasCtrl);
var content = _contentPresenter.Content as FrameworkElement;
var contentWidth = content.ActualWidth + content.Margin.Left + content.Margin.Right;
var contentHeight = content.ActualHeight + content.Margin.Top + content.Margin.Bottom;
var radius = GetActualCornerRadius(contentWidth);
double maxOffset_Y = shadowParams.Max(param => param.Offset_Y);
_shadowCanvas.VerticalAlignment = content.VerticalAlignment;
_shadowCanvas.HorizontalAlignment = content.HorizontalAlignment;
using (var ds = canvasCommandList.CreateDrawingSession())
{
ds.FillRoundedRectangle(new Rect(0, 0, contentWidth, contentHeight), radius, radius, Color.FromArgb(255, 0, 0, 0));
}
CompositeEffect compositeEffect = CreateEffects(shadowParams, canvasCommandList);
var bound = compositeEffect.GetBounds(drawSession);
double shadowWidth = Math.Abs(bound.X);
double shadowHeight = Math.Abs(bound.Y);
UpdateLayout(maxOffset_Y, bound, shadowWidth, shadowHeight);
DrawEffect(drawSession, compositeEffect, shadowWidth, shadowHeight);
}
void CreateLinearGradient(ICanvasResourceCreator resourceCreator)
{
var commandList = new CanvasCommandList(resourceCreator);
using (var drawingSession = commandList.CreateDrawingSession())
{
var brush = new CanvasLinearGradientBrush(resourceCreator, Colors.White, Colors.Black)
{
StartPoint = new Vector2(-tigerSize.X / 4, 0),
EndPoint = new Vector2(tigerSize.X * 5 / 4, 0),
};
// Expand the bounds to avoid going past the edge of the gradient as we rotate it.
var expandedBounds = new Rect((-tigerSize).ToPoint(), (tigerSize * 2).ToPoint());
drawingSession.FillRectangle(expandedBounds, brush);
}
linearGradient = new Transform2DEffect
{
Source = commandList
};
}
public static void DrawFunction(
CanvasDrawingSession drawingSession,
CancellationToken cancellationToken,
IFunction function,
Transform transform,
bool isHighlighted)
{
string functionString = function.ToString();
QuadrantEventSource.Log.DrawFunctionStart(functionString);
float interval = transform.DefaultInterval;
float largeChangeThreshold = (transform.Top - transform.Bottom) / 20;
float smallChangeThreshold = Math.Abs(transform.GetLogicalNormal(Vector2.UnitY).Y);
float x = transform.Left;
float difference = float.NaN;
float previousY = float.NaN;
float previousX = float.NaN;
while (x <= transform.Right)
{
float y = (float)function.Function(x);
if (!transform.IsOutsideVericalRange(y))
{
using (var pathBuilder = new CanvasPathBuilder(drawingSession))
{
if (previousY.IsReal())
{
pathBuilder.BeginFigure(previousX, previousY);
pathBuilder.AddLine(x, y);
}
else
{
pathBuilder.BeginFigure(x, y);
}
while (x <= transform.Right)
{
previousX = x;
previousY = y;
x += interval;
y = (float)function.Function(x);
if (!y.IsReal())
{
break;
}
float previousDifference = difference;
difference = y - previousY;
float absoluteDifferece = Math.Abs(difference);
bool isAsymptote = false;
if (cancellationToken.IsCancellationRequested)
{
if (interval != transform.CanceledInterval)
{
interval = transform.CanceledInterval;
QuadrantEventSource.Log.DrawFunctionCanceled(functionString);
}
}
else if (absoluteDifferece > largeChangeThreshold)
{
if (interval > transform.MinimumInterval)
{
x = previousX;
y = previousY;
difference = previousDifference;
interval = transform.MinimumInterval;
continue;
}
if (!float.IsNaN(previousDifference) && (Math.Sign(difference) * Math.Sign(previousDifference)) < 0)
{
isAsymptote = true;
}
}
else if (absoluteDifferece < smallChangeThreshold && interval < transform.DefaultInterval)
{
interval = Math.Min(2 * interval, transform.DefaultInterval);
}
bool shouldStartNewFigure = TryGetExitPoint(function, transform, x, y, isAsymptote, out Vector2 point);
pathBuilder.AddLine(point);
if (shouldStartNewFigure)
{
break;
}
}
pathBuilder.EndFigure(CanvasFigureLoop.Open);
using (var brush = new CanvasSolidColorBrush(drawingSession, function.Color))
using (CanvasGeometry geometry = CanvasGeometry.CreatePath(pathBuilder))
{
CanvasGeometry transformedGeometry = geometry.Transform(transform.DisplayTransform);
const float strokeWidth = 2;
if (isHighlighted)
{
var highlightCommandList = new CanvasCommandList(drawingSession.Device);
using (CanvasDrawingSession highlightDrawingSession = highlightCommandList.CreateDrawingSession())
{
highlightDrawingSession.DrawGeometry(
transformedGeometry,
Vector2.Zero,
brush,
strokeWidth);
}
var shadowEffect = new ShadowEffect()
{
ShadowColor = function.Color,
BlurAmount = 3,
Source = highlightCommandList,
Optimization = EffectOptimization.Speed
};
drawingSession.DrawImage(shadowEffect);
}
drawingSession.DrawGeometry(
transformedGeometry,
Vector2.Zero,
brush,
strokeWidth);
}
}
}
if (y.IsReal() && previousY.IsReal())
{
difference = y - previousY;
}
else
{
difference = float.NaN;
}
previousY = y;
previousX = x;
x += interval;
}
QuadrantEventSource.Log.DrawFunctionStop();
}
private async void OnSaveAsClicked(object sender, RoutedEventArgs e)
{
// the button should be disabled if there's no bitmap loaded
Debug.Assert(virtualBitmap != null);
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("Jpegs", new List<string>() { ".jpg" });
var file = await picker.PickSaveFileAsync();
if (file == null)
return;
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
// Stamp a big "Win2D" over the image before we save it, to demonstrate
// that the image really has been processed.
var device = CanvasDevice.GetSharedDevice();
var bounds = virtualBitmap.Bounds;
var text = new CanvasCommandList(device);
using (var ds = text.CreateDrawingSession())
{
ds.DrawText("Win2D", bounds, Colors.White,
new CanvasTextFormat()
{
VerticalAlignment = CanvasVerticalAlignment.Center,
HorizontalAlignment = CanvasHorizontalAlignment.Center,
FontFamily = "Comic Sans MS",
FontSize = (float)(bounds.Height / 4)
});
}
var effect = new BlendEffect()
{
Background = virtualBitmap,
Foreground = text,
Mode = BlendEffectMode.Difference
};
try
{
await CanvasImage.SaveAsync(effect, bounds, 96, device, stream, CanvasBitmapFileFormat.Jpeg);
var message = string.Format("Finished saving '{0}'", file.Name);
var messageBox = new MessageDialog(message, "Virtual Bitmap Example").ShowAsync();
}
catch
{
var message = string.Format("Error saving '{0}'", file.Name);
var messageBox = new MessageDialog(message, "Virtual Bitmap Example").ShowAsync();
}
}
}
public void EditRegionMask(List<Vector2> points, float zoomFactor)
{
if (regionMask == null)
{
// Demand-create our region mask image.
regionMask = new CanvasRenderTarget(SourceBitmap.Device, Parent.Size.X, Parent.Size.Y, 96);
}
else
{
// Back up the previous mask, to support undo.
previousRegionMask = currentRegionMask;
}
// Prepare an ICanvasImage holding the edit to be applied.
ICanvasImage editMask;
if (RegionSelectionMode == SelectionMode.MagicWand)
{
// Magic wand selection is already an image.
editMask = GetMagicWandMask(points, zoomFactor);
}
else
{
// Capture selection geometry into a command list.
var commandList = new CanvasCommandList(regionMask.Device);
using (var drawingSession = commandList.CreateDrawingSession())
{
// If this was just a touch without move, treat it as selecting the entire image.
var dragRange = points.Select(point => Vector2.Distance(point, points[0])).Max() * zoomFactor;
if (dragRange < 10)
{
drawingSession.Clear(Colors.White);
}
else
{
// Draw selection geometry.
var geometry = GetSelectionGeometry(drawingSession, points);
drawingSession.FillGeometry(geometry, Colors.White);
}
}
editMask = commandList;
}
// Apply the edit.
using (var drawingSession = regionMask.CreateDrawingSession())
{
CanvasComposite compositeMode;
switch (RegionSelectionOperation)
{
case SelectionOperation.Replace:
drawingSession.Clear(Colors.Transparent);
compositeMode = CanvasComposite.SourceOver;
break;
case SelectionOperation.Add:
compositeMode = CanvasComposite.SourceOver;
break;
case SelectionOperation.Subtract:
compositeMode = CanvasComposite.DestinationOut;
break;
case SelectionOperation.Invert:
compositeMode = CanvasComposite.Xor;
break;
default:
throw new NotSupportedException();
}
drawingSession.DrawImage(editMask, Vector2.Zero, regionMask.Bounds, 1, CanvasImageInterpolation.Linear, compositeMode);
}
// Back up the mask, so we can recover from lost devices.
currentRegionMask = regionMask.GetPixelBytes();
cachedRegionMask.Reset();
CanUndo = true;
}
public void EditRegionMask(List <Vector2> points, float zoomFactor)
{
if (regionMask == null)
{
// Demand-create our region mask image.
regionMask = new CanvasRenderTarget(SourceBitmap.Device, Parent.Size.X, Parent.Size.Y, 96);
}
else
{
// Back up the previous mask, to support undo.
previousRegionMask = currentRegionMask;
}
// Prepare an ICanvasImage holding the edit to be applied.
ICanvasImage editMask;
if (RegionSelectionMode == SelectionMode.MagicWand)
{
// Magic wand selection is already an image.
editMask = GetMagicWandMask(points, zoomFactor);
}
else
{
// Capture selection geometry into a command list.
var commandList = new CanvasCommandList(regionMask.Device);
using (var drawingSession = commandList.CreateDrawingSession())
{
// If this was just a touch without move, treat it as selecting the entire image.
var dragRange = points.Select(point => Vector2.Distance(point, points[0])).Max() * zoomFactor;
if (dragRange < 10)
{
drawingSession.Clear(Colors.White);
}
else
{
// Draw selection geometry.
var geometry = GetSelectionGeometry(drawingSession, points);
drawingSession.FillGeometry(geometry, Colors.White);
}
}
editMask = commandList;
}
// Apply the edit.
using (var drawingSession = regionMask.CreateDrawingSession())
{
CanvasComposite compositeMode;
switch (RegionSelectionOperation)
{
case SelectionOperation.Replace:
drawingSession.Clear(Colors.Transparent);
compositeMode = CanvasComposite.SourceOver;
break;
case SelectionOperation.Add:
compositeMode = CanvasComposite.SourceOver;
break;
case SelectionOperation.Subtract:
compositeMode = CanvasComposite.DestinationOut;
break;
case SelectionOperation.Invert:
compositeMode = CanvasComposite.Xor;
break;
default:
throw new NotSupportedException();
}
drawingSession.DrawImage(editMask, Vector2.Zero, regionMask.Bounds, 1, CanvasImageInterpolation.Linear, compositeMode);
}
// Back up the mask, so we can recover from lost devices.
currentRegionMask = regionMask.GetPixelBytes();
cachedRegionMask.Reset();
CanUndo = true;
}
private void canvasControl_Draw(CanvasControl sender, CanvasDrawEventArgs args)
{
if (!svgSupported)
{
args.DrawingSession.Clear(Colors.Black);
DrawNotSupportedMessage(args.DrawingSession, sender.Size);
return;
}
Size viewportSize = new Size()
{
Width = 1000, Height = 1000
};
if (CurrentEffectType == EffectType.None)
{
args.DrawingSession.DrawSvg(svgDocument, viewportSize);
}
else if (CurrentEffectType == EffectType.EdgeDetection)
{
CanvasCommandList commandList = new CanvasCommandList(sender);
using (var ds = commandList.CreateDrawingSession())
{
ds.DrawSvg(svgDocument, viewportSize);
}
var edgeDetection = new EdgeDetectionEffect
{
Source = commandList,
Amount = 1,
BlurAmount = 1
};
args.DrawingSession.DrawImage(edgeDetection);
}
if (pointerDrag != null)
{
if (CurrentShapeType == ShapeType.Rectangle)
{
// Show ghost
args.DrawingSession.DrawRectangle(pointerDrag.GetRectangle(), Colors.Magenta);
}
else if (CurrentShapeType == ShapeType.Ellipse)
{
var ellipse = pointerDrag.GetEllipse();
args.DrawingSession.DrawEllipse(ellipse.CenterX, ellipse.CenterY, ellipse.RadiusX, ellipse.RadiusY, Colors.Magenta);
}
else if (CurrentShapeType == ShapeType.Circle)
{
var circle = pointerDrag.GetCircle();
args.DrawingSession.DrawCircle(circle.Center, circle.Radius, Colors.Magenta);
args.DrawingSession.DrawLine(circle.Center, pointerDrag.CurrentLocation.ToVector2(), Colors.Magenta);
}
else if (CurrentShapeType == ShapeType.Line)
{
args.DrawingSession.DrawLine(pointerDrag.StartLocation.ToVector2(), pointerDrag.CurrentLocation.ToVector2(), Colors.Magenta);
}
}
}
private void DanmuCanvas_CreateResources(Microsoft.Graphics.Canvas.UI.Xaml.CanvasAnimatedControl sender, Microsoft.Graphics.Canvas.UI.CanvasCreateResourcesEventArgs args)
{
cl = new CanvasCommandList(sender);
}
private void DoPathEffect(CanvasControl sender, CanvasDrawingSession ds )
{
using (var thBuilder = new Microsoft.Graphics.Canvas.Geometry.CanvasPathBuilder(sender))
{
var pthConverter = new PathToD2DPathGeometryConverter();
foreach(var path in _paths)
{
var offset = (float)ExpandAmount / 2;
using (var cl = new CanvasCommandList(ds))
using (var pthGeo = pthConverter.parse(path, thBuilder))
{
using (var clds = cl.CreateDrawingSession())
{
clds.FillGeometry(pthGeo,0,0, GlowColor);
}
_eg.Setup(cl, (float)GlowAmount, GlowColor);
ds.DrawImage(_eg.Output, offset, offset);
ds.FillGeometry(pthGeo,offset, offset, ((SolidColorBrush)GlowFill).Color);
}
}
}
}
//初始化特效渲染目标
public static void InitializeEffect()
{
//特效渲染目标 （上中下）（如果选区存在：选区选中的图像 ；否则：全部图像）
using (CanvasDrawingSession ds = App.Model.SecondSourceRenderTarget.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
//获得当前图层的渲染目标
ds.DrawImage(App.Model.Layers[App.Model.Index].CanvasRenderTarget);
//扣取选区的区域：如果有选区
if (App.Model.isAnimated == true)
{
ds.DrawImage(App.Model.MaskRenderTarget, 0, 0, App.Model.MaskRenderTarget.Bounds, 1, CanvasImageInterpolation.HighQualityCubic, CanvasComposite.DestinationIn);
}
}
//下特效渲染目标 （从灰白网格到当前图层的下一层）
using (CanvasDrawingSession ds = App.Model.SecondBottomRenderTarget.CreateDrawingSession())
{
ds.DrawImage(App.GrayWhiteGrid);
ICanvasImage ci = App.Model.NullRenderTarget; //由下向上渲染的图片接口
for (int i = App.Model.Layers.Count - 1; i > App.Model.Index; i--) //自下而上渲染
{
ci = App.Render(App.Model.Layers[i], ci); //渲染
}
ds.DrawImage(ci);
//获得当前图层的扣掉图形的渲染目标
if (App.Model.isAnimated == true)
{
//复制源图
CanvasCommandList ccl = new CanvasCommandList(App.Model.VirtualControl);
//渲染目标的画布布尔运算
using (CanvasDrawingSession dds = ccl.CreateDrawingSession())
{
dds.DrawImage(App.Model.CurrentRenderTarget);
dds.DrawImage(App.Model.MaskRenderTarget, 0, 0, App.Model.MaskRenderTarget.Bounds, 1, CanvasImageInterpolation.Linear, CanvasComposite.DestinationOut);
}
ds.DrawImage(ccl);
}
}
//上特效渲染目标 （从当前图层的的上一层到顶层）
using (CanvasDrawingSession ds = App.Model.SecondTopRenderTarget.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
//当前图层索引不在0，即并不在第一层
ICanvasImage ci = App.Model.NullRenderTarget;
//当前图层索引不在1，即并不在第二层
if (App.Model.Index > 0)
{
for (int i = App.Model.Index - 1; i >= 0; i--) //自下而上渲染
{
ci = App.Render(App.Model.Layers[i], ci); //渲染
}
}
ds.DrawImage(ci);
}
}
public override CanvasCommandList GetChartImage()
{
if (Values == null || Values.GroupCount == 0 ||
Style?.ChartType != ChartType.Pie)
{
return(null);
}
var style = (PieChartStyle)Style;
var colorSpace = Style.ColorSpace.Select(ColorConverter.ConvertHexToColor).ToList();
var device = CanvasDevice.GetSharedDevice();
var commandList = new CanvasCommandList(device);
using (var session = commandList.CreateDrawingSession())
{
var geos = GetPieChart(device, Values.Data[0], style.DataLabelFormat, style.Radius,
Values.IsShowDataValues);
var titleLayout = ChartDrawHelper.CreateCanvasText(device, Values.Title, style.TitleFormat);
var titleRect = titleLayout.LayoutBounds;
if (Values.IsShowTitle)
{
session.DrawTextLayout(titleLayout, new Vector2(),
ColorConverter.ConvertHexToColor(style.TitleFormat.Foreground));
}
titleLayout.Dispose();
var diameter = style.Radius * 2 + style.BorderWidth / 2;
var pieOffset =
new Point((titleRect.Width - diameter) / 2,
titleRect.Height + style.TitleFormat.Thickness.Bottom).ToVector2();
using (var pieCommandList = new CanvasCommandList(session))
{
using (var pieDrawSession = pieCommandList.CreateDrawingSession())
{
pieDrawSession.Transform = Matrix3x2.CreateTranslation(pieOffset);
for (int i = 0; i < geos.Count; i++)
{
pieDrawSession.FillGeometry(geos[i].ShapeGeometry,
colorSpace[i % Style.ColorSpace.Count]);
}
foreach (var t in geos)
{
pieDrawSession.DrawGeometry(t.ShapeGeometry,
ColorConverter.ConvertHexToColor(style.BorderColor), style.BorderWidth,
new CanvasStrokeStyle
{
LineJoin = CanvasLineJoin.Round,
});
if (Values.IsShowDataValues)
{
pieDrawSession.FillGeometry(t.TextGeometry, (float)t.DataRect.X,
(float)t.DataRect.Y,
ColorConverter.ConvertHexToColor(style.DataLabelFormat.Foreground));
}
t.Dispose();
}
}
session.DrawImage(pieCommandList);
}
if (Values.IsShowLegend)
{
var legendLabels = Values.GroupLabels.Take(Values.GroupCount).ToList();
var legend = ChartDrawHelper.CreateLegend(device, style.LegendStyle,
legendLabels, colorSpace, Values.LegendPosition);
var legendRect = legend.GetBounds(device);
switch (Values.LegendPosition)
{
case LegendPosition.Right:
var rightOffset =
new Point(
pieOffset.X + diameter + style.LegendStyle.Thickness.Left - legendRect.X,
pieOffset.Y + (diameter - legendRect.Height) - legendRect.Y)
.ToVector2();
session.DrawImage(legend, rightOffset);
break;
case LegendPosition.Bottom:
var bottomOffset =
new Point(
(titleRect.Width - legendRect.Width) / 2 - legendRect.X,
titleRect.Height + style.TitleFormat.Thickness.Bottom +
diameter + style.LegendStyle.Thickness.Top - legendRect.Y)
.ToVector2();
session.DrawImage(legend, bottomOffset);
break;
}
legend.Dispose();
}
}
return(commandList);
}
/// <summary>
/// Renders text into a command list and sets this as the input to the flame
/// effect graph. The effect graph must already be created before calling this method.
/// </summary>
private void SetupText(ICanvasResourceCreator resourceCreator)
{
textCommandList = new CanvasCommandList(resourceCreator);
using (var ds = textCommandList.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
ds.DrawText(
"Windows.UI.Composition",
0,
0,
Colors.White,
new Microsoft.Graphics.Canvas.Text.CanvasTextFormat
{
FontFamily = "Segoe UI",
FontSize = 20,
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Top
});
}
// Hook up the command list to the inputs of the flame effect graph.
morphology.Source = textCommandList;
composite.Sources[1] = textCommandList;
}
private async void OnSaveAsClicked(object sender, RoutedEventArgs e)
{
// the button should be disabled if there's no bitmap loaded
Debug.Assert(virtualBitmap != null);
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("Jpegs", new List <string>()
{
".jpg"
});
var file = await picker.PickSaveFileAsync();
if (file == null)
{
return;
}
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
// Stamp a big "Win2D" over the image before we save it, to demonstrate
// that the image really has been processed.
var device = CanvasDevice.GetSharedDevice();
var bounds = virtualBitmap.Bounds;
var text = new CanvasCommandList(device);
using (var ds = text.CreateDrawingSession())
{
ds.DrawText("Win2D", bounds, Colors.White,
new CanvasTextFormat()
{
VerticalAlignment = CanvasVerticalAlignment.Center,
HorizontalAlignment = CanvasHorizontalAlignment.Center,
FontFamily = "Comic Sans MS",
FontSize = (float)(bounds.Height / 4)
});
}
var effect = new BlendEffect()
{
Background = virtualBitmap,
Foreground = text,
Mode = BlendEffectMode.Difference
};
try
{
await CanvasImage.SaveAsync(effect, bounds, 96, device, stream, CanvasBitmapFileFormat.Jpeg);
var message = string.Format("Finished saving '{0}'", file.Name);
var messageBox = new MessageDialog(message, "Virtual Bitmap Example").ShowAsync();
}
catch
{
var message = string.Format("Error saving '{0}'", file.Name);
var messageBox = new MessageDialog(message, "Virtual Bitmap Example").ShowAsync();
}
}
}
public static void Mask(ICanvasImage VirtualImage, ICanvasImage AnimatedImage, int MaskMode = 0, bool isClear = false)
{
CanvasComposite compositeMode = CanvasComposite.SourceOver;
switch (MaskMode)
{
//主模式：SourceOver
case 0: compositeMode = CanvasComposite.SourceOver; break;
//加模式：SourceOver
case 1: compositeMode = CanvasComposite.SourceOver; break;
//减模式：DestinationOut
case 2: compositeMode = CanvasComposite.DestinationOut; break;
//差模式：DestinationIn
case 3: compositeMode = CanvasComposite.DestinationIn; break;
//负模式：DestinationIn
case 4: compositeMode = CanvasComposite.Xor; break;
default: break;
}
//画布
CanvasCommandList cl = new CanvasCommandList(App.Model.VirtualControl); //新图片（列表命令）
using (CanvasDrawingSession ds = cl.CreateDrawingSession()) //新图片上画几何
{
ds.Clear(App.Setting.MaskColor);
ds.DrawImage(VirtualImage, 0, 0, App.Model.MaskRenderTarget.Bounds, 1, CanvasImageInterpolation.Linear, CanvasComposite.DestinationIn);
}
using (CanvasDrawingSession ds = App.Model.MaskRenderTarget.CreateDrawingSession())//旧图片上画旧图片（并布尔运算）
{
if (isClear == true || MaskMode == 0)
{
ds.Clear(Colors.Transparent);
}
ds.DrawImage(cl, 0, 0, App.Model.MaskRenderTarget.Bounds, 1, CanvasImageInterpolation.Linear, compositeMode);
}
//动画
CanvasCommandList acl = new CanvasCommandList(App.Model.AnimatedControl); //新图片（列表命令）
using (CanvasDrawingSession ds = acl.CreateDrawingSession()) //新图片上画几何
{
ds.Clear(App.Setting.MaskColor);
ds.DrawImage(AnimatedImage, 0, 0, App.Model.MaskRenderTarget.Bounds, 1, CanvasImageInterpolation.Linear, CanvasComposite.DestinationIn);
}
using (CanvasDrawingSession ds = App.Model.MaskAnimatedTarget.CreateDrawingSession())//旧图片上画旧图片（并布尔运算）
{
if (isClear == true || MaskMode == 0)
{
ds.Clear(Colors.Transparent);
}
ds.DrawImage(acl, 0, 0, App.Model.MaskAnimatedTarget.Bounds, 1, CanvasImageInterpolation.Linear, compositeMode);
}
if (App.Model.isMask == true)//蓝色选区
{
App.Model.isReRender = true;
App.Model.Refresh++;
}
}
ICanvasImage WrapSourceWithIntermediateImage(PerDeviceResources resources, IntermediateMode mode)
{
switch (mode)
{
case IntermediateMode.ImageEffect:
// We can either feed our graphics through an image effect...
resources.SaturationEffect.Source = GetSourceBitmap(resources) ??
WrapSourceWithIntermediateImage(resources, IntermediateMode.None);
resources.AddMessage("SaturationEffect ->\n");
return resources.SaturationEffect;
case IntermediateMode.CommandList:
var cl = new CanvasCommandList(resources.ResourceCreator);
using (var ds = cl.CreateDrawingSession())
{
DrawSourceGraphic(resources, ds, 0);
}
resources.AddMessage("CommandList ->\n");
return cl;
case IntermediateMode.ImageEffectInCommandList:
var cl2 = new CanvasCommandList(resources.ResourceCreator);
using (var ds = cl2.CreateDrawingSession())
{
ds.DrawImage(WrapSourceWithIntermediateImage(resources, IntermediateMode.ImageEffect));
}
resources.AddMessage("CommandList ->\n");
return cl2;
default:
// ... or draw them into a rendertarget.
var renderTarget = GetIntermediateRenderTarget(resources, mode);
using (var ds = renderTarget.CreateDrawingSession())
{
DrawSourceGraphic(resources, ds, 0);
}
var pixels = renderTarget.SizeInPixels;
resources.AddMessage("RenderTarget (dpi: {0}, size: {1}, pixels: {2},{3}) ->\n", renderTarget.Dpi, renderTarget.Size, pixels.Width, pixels.Height);
return renderTarget;
}
}
/// <summary>
/// Renders text into a command list and sets this as the input to the flame
/// effect graph. The effect graph must already be created before calling this method.
/// </summary>
private void SetupText(ICanvasResourceCreator resourceCreator)
{
textCommandList = new CanvasCommandList(resourceCreator);
using (var ds = textCommandList.CreateDrawingSession())
{
ds.Clear(Color.FromArgb(0, 0, 0, 0));
ds.DrawText(
text,
0,
0,
Colors.White,
new CanvasTextFormat
{
FontFamily = "Segoe UI",
FontSize = fontSize,
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Top
});
}
// Hook up the command list to the inputs of the flame effect graph.
morphology.Source = textCommandList;
composite.Sources[1] = textCommandList;
}
private async void btnUpload_Clicked(object sender, RoutedEventArgs e)
{
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.ViewMode = PickerViewMode.Thumbnail;
openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
openPicker.FileTypeFilter.Add(".jpg");
openPicker.FileTypeFilter.Add(".jpeg");
openPicker.FileTypeFilter.Add(".png");
// Pick only one file once a time
StorageFile file = await openPicker.PickSingleFileAsync();
if (file == null)
{
return;
}
using (IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.Read))
{
cl = new CanvasCommandList(canvas);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
clds.DrawImage(
CanvasBitmap.CreateFromSoftwareBitmap(canvas,
await decoder.GetSoftwareBitmapAsync(BitmapPixelFormat.Rgba16, BitmapAlphaMode.Premultiplied)));
}
blur = new GaussianBlurEffect
{
Source = cl,
BlurAmount = (float)gaussianBlurAmountSlider.Value
};
hueRotation = new HueRotationEffect
{
Source = blur,
Angle = (float)hueRotationAmountSlider.Value / 100f * 360f
};
contrast = new ContrastEffect
{
Source = hueRotation,
Contrast = (float)(contrastAmountSlider.Value - 50f) / 50f
};
saturation = new SaturationEffect
{
Source = contrast,
Saturation = (float)saturationAmountSlider.Value / 100f
};
temperatureAndTint = new TemperatureAndTintEffect
{
Source = saturation,
Temperature = (float)(temperatureAmountSlider.Value - 50f) / 50f,
Tint = (float)(tintAmountSlider.Value - 50f) / 50f
};
grayscale = new GrayscaleEffect
{
Source = temperatureAndTint
};
canvasEffect = saturation;
// CanvasControl.Invalidate Method iIndicates that the contents of the CanvasControl need to be redrawn.
// Calling Invalidate results in the Draw event being raised shortly afterward.
//
// Reference: https://microsoft.github.io/Win2D/html/M_Microsoft_Graphics_Canvas_UI_Xaml_CanvasControl_Invalidate.htm
canvas.Invalidate();
gaussianBlurAmountSlider.IsEnabled = true;
hueRotationAmountSlider.IsEnabled = true;
contrastAmountSlider.IsEnabled = true;
saturationAmountSlider.IsEnabled = true;
temperatureAmountSlider.IsEnabled = true;
tintAmountSlider.IsEnabled = true;
grayscaleBufferPrevision.IsEnabled = true;
var image = new BitmapImage();
await image.SetSourceAsync(fileStream);
}
}
/// <summary>
/// Gets a specific rended-layer.
/// </summary>
/// <param name="resourceCreator"> The resource-creator. </param>
/// <param name="layerage"> The layerage. </param>
/// <returns> The rendered layer. </returns>
public override ICanvasImage GetRender(ICanvasResourceCreator resourceCreator, Layerage layerage)
{
CanvasCommandList command = new CanvasCommandList(resourceCreator);
using (CanvasDrawingSession drawingSession = command.CreateDrawingSession())
{
if (this.Transform.IsCrop == false)
{
switch (base.Style.Transparency.Type)
{
case BrushType.LinearGradient:
case BrushType.RadialGradient:
case BrushType.EllipticalGradient:
{
Transformer transformer = base.Transform.Transformer;
CanvasGeometry geometryCrop = transformer.ToRectangle(resourceCreator);
ICanvasBrush canvasBrush = this.Style.Transparency.GetICanvasBrush(resourceCreator);
using (drawingSession.CreateLayer(canvasBrush, geometryCrop))
{
this.GetGeometryRender(resourceCreator, drawingSession, layerage);
}
}
break;
default:
this.GetGeometryRender(resourceCreator, drawingSession, layerage);
break;
}
}
else
{
Transformer cropTransformer = base.Transform.CropTransformer;
CanvasGeometry geometryCrop = cropTransformer.ToRectangle(resourceCreator);
switch (base.Style.Transparency.Type)
{
case BrushType.LinearGradient:
case BrushType.RadialGradient:
case BrushType.EllipticalGradient:
{
ICanvasBrush canvasBrush = this.Style.Transparency.GetICanvasBrush(resourceCreator);
using (drawingSession.CreateLayer(canvasBrush, geometryCrop))
{
this.GetGeometryRender(resourceCreator, drawingSession, layerage);
}
}
break;
default:
using (drawingSession.CreateLayer(1, geometryCrop))
{
this.GetGeometryRender(resourceCreator, drawingSession, layerage);
}
break;
}
}
}
return(command);
}
private ICanvasImage CreateNotSupportedMessage(string message)
{
var commandList = new CanvasCommandList(canvas);
var textFormat = new CanvasTextFormat
{
FontSize = 16,
HorizontalAlignment = CanvasHorizontalAlignment.Center,
VerticalAlignment = CanvasVerticalAlignment.Center
};
using (var ds = commandList.CreateDrawingSession())
{
ds.DrawText(message, bitmapTiger.Bounds, Colors.Red, textFormat);
}
animationFunction = elapsedTime => { };
return commandList;
}
static void DrawTile(CanvasDrawingSession ds, float width, float height)
{
using (var cl = new CanvasCommandList(ds))
{
using (var clds = cl.CreateDrawingSession())
{
var text = string.Format("{0}\n{1}", DateTime.Now.ToString("ddd"), DateTime.Now.ToString("HH:mm"));
var textFormat = new CanvasTextFormat()
{
FontFamily = "Segoe UI Black",
HorizontalAlignment = CanvasHorizontalAlignment.Right,
VerticalAlignment = CanvasVerticalAlignment.Center,
FontSize = 20,
LineSpacing = 20
};
clds.DrawText(text, 0, 0, Colors.White, textFormat);
}
var effect = new GaussianBlurEffect()
{
Source = cl,
BlurAmount = 1,
};
ds.Clear(Colors.Orange);
var bounds = effect.GetBounds(ds);
var ratio = bounds.Height / bounds.Width;
var destHeight = height * ratio;
ds.DrawImage(effect, new Rect(0, height / 2 - destHeight / 2, width, destHeight), bounds);
ds.DrawText(string.Format("Generated by Win2D\n{0}\n{1}", DateTime.Now.ToString("d"), DateTime.Now.ToString("t")),
12, 12, Colors.Black,
new CanvasTextFormat()
{
HorizontalAlignment = CanvasHorizontalAlignment.Left,
VerticalAlignment = CanvasVerticalAlignment.Top,
FontSize = 12
});
}
}
private CompositeEffect CreateEffects(List<ShadowParam> shadowParams, CanvasCommandList canvasCommandList)
{
CompositeEffect compositeEffect = new CompositeEffect();
shadowParams.ForEach(param =>
{
var shadowEffect = CreateShadowEffect(canvasCommandList, param);
compositeEffect.Sources.Add(shadowEffect);
});
return compositeEffect;
}
/// <summary>
/// Draws the entire game board for the provided state.
/// </summary>
/// <param name="sender"></param>
/// <param name="session"></param>
/// <param name="gameState"></param>
public void Draw(ICanvasResourceCreator sender, double width, double height, CanvasDrawingSession session, GameTreeNode gameState)
{
// Calculations
double clientWidth = width;
double clientHeight = height;
int boardWidth = this.SharedBoardControlState.BoardWidth;
int widthWithBorder = boardWidth + (this.ShowCoordinates ? 2 : 0);
int boardHeight = this.SharedBoardControlState.BoardHeight;
Rect boardRectangle = RenderUtilities.Scale(
new Rect(0, 0, clientWidth, clientHeight),
boardWidth + (this.ShowCoordinates ? 2 : 0),
boardHeight + (this.ShowCoordinates ? 2 : 0));
_cellSize = (int)(boardRectangle.Width / widthWithBorder);
_halfSize = _cellSize / 2;
if (this.ShowCoordinates)
{
_boardBorderThickness = _cellSize;
}
else
{
_boardBorderThickness = 0;
}
this.SharedBoardControlState.LeftPadding = (int)boardRectangle.X + _boardBorderThickness;
this.SharedBoardControlState.TopPadding = (int)boardRectangle.Y + _boardBorderThickness;
this.SharedBoardControlState.NewCellSize = _cellSize;
// The above should only be probably called on demand, not always
// Draw parts
DrawBoard(session, clientWidth, clientHeight, boardRectangle);
// Draw coordinates
session.Transform = Matrix3x2.CreateTranslation(
(float)boardRectangle.X,
(float)boardRectangle.Y);
DrawBoardCoordinates(sender, session, boardWidth, boardHeight);
// Draw grid
session.Transform = Matrix3x2.CreateTranslation(
(float)boardRectangle.X + _boardBorderThickness,
(float)boardRectangle.Y + _boardBorderThickness);
CanvasCommandList lines = new CanvasCommandList(sender);
using (CanvasDrawingSession linesSession = lines.CreateDrawingSession())
{
linesSession.Antialiasing = CanvasAntialiasing.Aliased;
DrawBoardLines(linesSession, boardWidth, boardHeight);
}
session.DrawImage(lines);
DrawBoardStarPoints(session, boardWidth, boardHeight);
lines.Dispose();
// Shining position special case
if (_sharedBoardControlState.ShiningPosition.IsDefined)
{
int x = this.SharedBoardControlState.ShiningPosition.X;
int y = ((this.SharedBoardControlState.BoardHeight - 1) - this.SharedBoardControlState.ShiningPosition.Y);
float minusWhat = (float)_flickerPercentage * _cellSize * 0.07f;
session.FillRoundedRectangle(
_cellSize * x + minusWhat,
_cellSize * y + minusWhat,
_cellSize - 2 * minusWhat,
_cellSize - 2 * minusWhat,
4, 4,
Color.FromArgb(140, 100, 200, 100));
}
// Draw all stones for given game state
DrawStones(gameState, session);
Position pointerPosition = _sharedBoardControlState.PointerOverPosition;
// Mouse over position special case
if (pointerPosition.IsDefined && _sharedBoardControlState.IsShadowDrawingEnabled)
{
if (SharedBoardControlState.IsAnalyzeModeEnabled)
{
// Set actual pointer position for the tools
// This has to be done here and not in InputService because we might get caught in race condition
// - pointerPosition.IsDefined returns true and in mean time user moves pointer outside of the board and IToolServices advertises Position.Undefined
// - and finally in this step we ask ITool for its shadow. ITools should not worry about handling Position.Undefined for GetShadow
SharedBoardControlState.AnalyzeToolServices.SetPointerPosition(pointerPosition);
// Analyze mode is enabled, draw selected tool shadow item.
DrawAnalyzeToolShadow(session, SharedBoardControlState.AnalyzeModeTool);
}
else
{
// TODO (future work) Petr : only if legal - use Ruleset IsLegalMove?
// But it would be slow, you can implement caching to check for each intersection only once
if (_sharedBoardControlState.PointerOverShadowColor != StoneColor.None && (
_sharedBoardControlState.TEMP_MoveLegality == null ||
_sharedBoardControlState.TEMP_MoveLegality[pointerPosition.X, pointerPosition.Y] == MoveResult.Legal))
{
DrawStone(session, pointerPosition.X, pointerPosition.Y, _sharedBoardControlState.PointerOverShadowColor, 0.5);
}
}
}
// Draw markups if enabled
if (SharedBoardControlState.IsAnalyzeModeEnabled)
{
session.Blend = CanvasBlend.SourceOver;
DrawMarkups(session, gameState.Markups);
}
// Draw debug FPS
session.Transform = Matrix3x2.Identity;
if (!SimpleRenderService)
{
_fpsCounter.Draw(session, new Rect(clientWidth - 100, 10, 80, 30));
}
}
async Task GenerateIcon(AppInfo appInfo, IconInfo iconInfo, StorageFolder folder)
{
// Draw the icon image into a command list.
var commandList = new CanvasCommandList(device);
using (var ds = commandList.CreateDrawingSession())
{
appInfo.DrawIconImage(ds, iconInfo);
}
ICanvasImage iconImage = commandList;
// Rasterize into a rendertarget.
var renderTarget = new CanvasRenderTarget(device, iconInfo.Width, iconInfo.Height, 96);
using (var ds = renderTarget.CreateDrawingSession())
{
// Initialize with the appropriate background color.
ds.Clear(iconInfo.TransparentBackground ? Colors.Transparent : appInfo.BackgroundColor);
// Work out where to position the icon image.
var imageBounds = iconImage.GetBounds(ds);
imageBounds.Height *= 1 + iconInfo.BottomPadding;
float scaleUpTheSmallerIcons = Math.Max(1, 1 + (60f - iconInfo.Width) / 50f);
float imageScale = appInfo.ImageScale * scaleUpTheSmallerIcons;
var transform = Matrix3x2.CreateTranslation((float)-imageBounds.X, (float)-imageBounds.Y) *
Utils.GetDisplayTransform(renderTarget.Size.ToVector2(), new Vector2((float)imageBounds.Width, (float)imageBounds.Height)) *
Matrix3x2.CreateScale(imageScale, renderTarget.Size.ToVector2() / 2);
if (iconInfo.Monochrome)
{
// Optionally convert to monochrome.
iconImage = new DiscreteTransferEffect
{
Source = new Transform2DEffect
{
Source = new LuminanceToAlphaEffect { Source = iconImage },
TransformMatrix = transform
},
RedTable = new float[] { 1 },
GreenTable = new float[] { 1 },
BlueTable = new float[] { 1 },
AlphaTable = new float[] { 0, 1 }
};
}
else
{
ds.Transform = transform;
// Optional shadow effect.
if (appInfo.AddShadow)
{
var shadow = new ShadowEffect
{
Source = iconImage,
BlurAmount = 12,
};
ds.DrawImage(shadow);
}
}
// draw the main icon image.
ds.DrawImage(iconImage);
}
// Save to a file.
using (var stream = await folder.OpenStreamForWriteAsync(iconInfo.Filename, CreationCollisionOption.ReplaceExisting))
{
await renderTarget.SaveAsync(stream.AsRandomAccessStream(), CanvasBitmapFileFormat.Png);
}
}
static void ValidateCanDrawImage(CanvasDevice device, ICanvasImage image)
{
using (var commandList = new CanvasCommandList(device))
using (var drawingSession = commandList.CreateDrawingSession())
{
drawingSession.DrawImage(image);
}
}
private void DoUIElementsEffect(CanvasControl sender, CanvasDrawingSession ds)
{
foreach (var elm in _uielements)
{
var offset = (float)ExpandAmount / 2;
using (var cl = new CanvasCommandList(ds))
{
using (var clds = cl.CreateDrawingSession())
{
using (var canvasbmp = CanvasBitmap.CreateFromBytes(sender.Device, elm.Item1, elm.Item2, elm.Item3, Windows.Graphics.DirectX.DirectXPixelFormat.B8G8R8A8UIntNormalized))
{
clds.DrawImage(canvasbmp, 0, 0);
}
}
_eg.Setup(cl, (float)GlowAmount, GlowColor);
ds.DrawImage(_eg.Output, offset + (float)elm.Item4, offset + (float)elm.Item5);
}
}
}
private ICanvasImage CreateAlphaMask()
{
if (!AlphaMaskEffect.IsSupported)
{
return CreateNotSupportedMessage(requiresWin10_14393);
}
textLabel = requiresWin10_14393;
// Draw an alpha gradient into a command list.
var alphaGradientBrush = new CanvasRadialGradientBrush(canvas, Colors.Black, Colors.Transparent)
{
Center = bitmapTiger.Size.ToVector2() / 2,
RadiusX = (float)bitmapTiger.Size.Width,
RadiusY = (float)bitmapTiger.Size.Height
};
var alphaMask = new CanvasCommandList(canvas);
using (var drawingSession = alphaMask.CreateDrawingSession())
{
drawingSession.FillRectangle(bitmapTiger.Bounds, alphaGradientBrush);
}
// Apply the alpha mask to the tiger bitmap.
var alphaMaskEffect = new AlphaMaskEffect
{
Source = bitmapTiger,
AlphaMask = alphaMask
};
// Composite the alpha masked image on top of a background checker pattern.
var compositeEffect = new CompositeEffect
{
Sources = { CreateCheckeredBackground(), alphaMaskEffect }
};
animationFunction = elapsedTime => { };
return compositeEffect;
}
static void DrawSecondsText(CanvasDrawingSession ds, Vector2 pos, int seconds)
{
// The text is drawn via a command list so we can use DrawImage to specify a difference CanvasComposite mode.
using (var cl = new CanvasCommandList(ds))
{
using (var clds = cl.CreateDrawingSession())
{
clds.DrawText(seconds.ToString(), Vector2.Zero, Colors.White, textFormat);
}
Rect textBounds = cl.GetBounds(ds);
var offset = new Vector2((float)textBounds.Left, (float)textBounds.Top);
ds.DrawImage(cl, pos + offset, cl.GetBounds(ds), 1, CanvasImageInterpolation.NearestNeighbor, CanvasComposite.MaskInvert);
}
}
async Task GenerateIcon(AppInfo appInfo, IconInfo iconInfo, StorageFolder folder)
{
// Draw the icon image into a command list.
var commandList = new CanvasCommandList(device);
using (var ds = commandList.CreateDrawingSession())
{
appInfo.DrawIconImage(ds, iconInfo);
}
ICanvasImage iconImage = commandList;
// Rasterize into a rendertarget.
var renderTarget = new CanvasRenderTarget(device, iconInfo.Width, iconInfo.Height, 96);
using (var ds = renderTarget.CreateDrawingSession())
{
// Initialize with the appropriate background color.
ds.Clear(iconInfo.TransparentBackground ? Colors.Transparent : appInfo.BackgroundColor);
// Work out where to position the icon image.
var imageBounds = iconImage.GetBounds(ds);
imageBounds.Height *= 1 + iconInfo.BottomPadding;
float scaleUpTheSmallerIcons = Math.Max(1, 1 + (60f - iconInfo.Width) / 50f);
float imageScale = appInfo.ImageScale * scaleUpTheSmallerIcons;
var transform = Matrix3x2.CreateTranslation((float)-imageBounds.X, (float)-imageBounds.Y) *
Utils.GetDisplayTransform(renderTarget.Size.ToVector2(), new Vector2((float)imageBounds.Width, (float)imageBounds.Height)) *
Matrix3x2.CreateScale(imageScale, renderTarget.Size.ToVector2() / 2);
if (iconInfo.Monochrome)
{
// Optionally convert to monochrome.
iconImage = new DiscreteTransferEffect
{
Source = new Transform2DEffect
{
Source = new LuminanceToAlphaEffect {
Source = iconImage
},
TransformMatrix = transform
},
RedTable = new float[] { 1 },
GreenTable = new float[] { 1 },
BlueTable = new float[] { 1 },
AlphaTable = new float[] { 0, 1 }
};
}
else
{
ds.Transform = transform;
// Optional shadow effect.
if (appInfo.AddShadow)
{
var shadow = new ShadowEffect
{
Source = iconImage,
BlurAmount = 12,
};
ds.DrawImage(shadow);
}
}
// draw the main icon image.
ds.DrawImage(iconImage);
}
// Save to a file.
using (var stream = await folder.OpenStreamForWriteAsync(iconInfo.Filename, CreationCollisionOption.ReplaceExisting))
{
await renderTarget.SaveAsync(stream.AsRandomAccessStream(), CanvasBitmapFileFormat.Png);
}
}
void CreateLinearGradient(ICanvasResourceCreator resourceCreator)
{
var commandList = new CanvasCommandList(resourceCreator);
using (var drawingSession = commandList.CreateDrawingSession())
{
var brush = new CanvasLinearGradientBrush(resourceCreator, Colors.White, Colors.Black)
{
StartPoint = new Vector2(-tigerSize.X / 4, 0),
EndPoint = new Vector2(tigerSize.X * 5 / 4, 0),
};
drawingSession.FillRectangle(bitmapTiger.Bounds, brush);
}
// Wrap the gradient with a border effect to avoid edge artifacts as we rotate it.
linearGradient = new Transform2DEffect
{
Source = new BorderEffect
{
Source = commandList
}
};
}
private CanvasCommandList GenerateTextDisplay(ICanvasResourceCreator resourceCreator, float width, float height)
{
var cl = new CanvasCommandList(resourceCreator);
using (var ds = cl.CreateDrawingSession())
{
float top = height - offset;
float center = width / 4.0f;
float symbolPos = center - 5.0f;
float labelPos = center + 5.0f;
for (int i = firstLine; i < lastLine; ++i)
{
float y = top + lineHeight * i;
int index = i;
if (index < characters.Length)
{
ds.DrawText(string.Format("{0}", (char)characters[index].Code), symbolPos, y, Colors.White, symbolText);
ds.DrawText(string.Format("0x{0:X} - {1}", characters[index].Code, characters[index].Label), labelPos, y, Colors.White, labelText);
}
}
}
return cl;
}
void CreateRadialGradient(ICanvasResourceCreator resourceCreator)
{
radialGradient = new CanvasCommandList(resourceCreator);
using (var drawingSession = radialGradient.CreateDrawingSession())
{
var sqrt2 = (float)Math.Sqrt(2);
var brush = new CanvasRadialGradientBrush(resourceCreator, Colors.White, Colors.Black)
{
Center = tigerSize / 2,
RadiusX = tigerSize.X / sqrt2,
RadiusY = tigerSize.Y / sqrt2,
};
drawingSession.FillRectangle(bitmapTiger.Bounds, brush);
}
}