void DrawStuff(CanvasDrawingSession ds)
{
int horizontalLimit = (int)m_canvasControl.ActualWidth;
int verticalLimit = (int)m_canvasControl.ActualHeight;
const float thickStrokeWidth = 80.0f;
DrawnContentType drawnContentType = (DrawnContentType)m_drawnContentTypeCombo.SelectedValue;
ds.Clear(NextRandomColor());
Rect rect;
Vector2 point;
float radiusX;
float radiusY;
switch (drawnContentType)
{
case DrawnContentType.Clear_Only:
break;
case DrawnContentType.Bitmap:
if (m_bitmap_tiger != null)
{
ds.DrawImage(m_bitmap_tiger, NextRandomPoint(horizontalLimit, verticalLimit).ToVector2());
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_Blur:
if (m_bitmap_tiger != null)
{
GaussianBlurEffect blurEffect = new GaussianBlurEffect();
blurEffect.StandardDeviation = 2.0f;
blurEffect.Source = m_bitmap_tiger;
ds.DrawImage(blurEffect, NextRandomPoint(horizontalLimit, verticalLimit).ToVector2());
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Line_Thin:
ds.DrawLine(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomColor());
break;
case DrawnContentType.Line_Thick:
ds.DrawLine(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Rectangle_Thin:
ds.DrawRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor());
break;
case DrawnContentType.Rectangle_Thick:
ds.DrawRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Rectangle_Filled:
ds.FillRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor());
break;
case DrawnContentType.RoundedRectangle_Thin:
NextRandomRoundedRect(horizontalLimit, verticalLimit, out rect, out radiusX, out radiusY);
ds.DrawRoundedRectangle(
rect, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.RoundedRectangle_Thick:
NextRandomRoundedRect(horizontalLimit, verticalLimit, out rect, out radiusX, out radiusY);
ds.DrawRoundedRectangle(
rect, radiusX, radiusY,
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Ellipse_Thin:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.DrawEllipse(
point, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.Ellipse_Thick:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.DrawEllipse(
point, radiusX, radiusY,
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Ellipse_Fill:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.FillEllipse(
point, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.Circle_Fill:
ds.FillCircle(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
100,
NextRandomColor());
break;
case DrawnContentType.Dashed_Lines:
DrawDashedLines(ds, NextRandomColor(), horizontalLimit, verticalLimit);
break;
case DrawnContentType.Text:
var p = NextRandomPoint(horizontalLimit, verticalLimit);
var x = (float)p.X;
var y = (float)p.Y;
var color = NextRandomColor();
ds.DrawLine(new Vector2(x, 0), new Vector2(x, verticalLimit), color);
ds.DrawLine(new Vector2(0, y), new Vector2(horizontalLimit, y), color);
ds.DrawText(
"Centered",
p.ToVector2(),
color,
new CanvasTextFormat()
{
FontSize = 18,
VerticalAlignment = CanvasVerticalAlignment.Center,
ParagraphAlignment = ParagraphAlignment.Center
});
var r = NextRandomRect(horizontalLimit, verticalLimit);
ds.DrawRectangle(r, color);
ds.DrawText(
m_quiteLongText,
r,
NextRandomColor(),
new CanvasTextFormat()
{
FontFamily = "Comic Sans MS",
FontSize = 18,
ParagraphAlignment = ParagraphAlignment.Justify,
Options = CanvasDrawTextOptions.Clip
});
break;
case DrawnContentType.ImageBrush:
if (m_bitmap_tiger != null)
{
m_imageBrush.Image = m_bitmap_tiger;
m_imageBrush.ExtendX = (CanvasEdgeBehavior)(m_random.Next(3));
m_imageBrush.ExtendY = (CanvasEdgeBehavior)(m_random.Next(3));
ds.FillRectangle(new Rect(0, 0, horizontalLimit, verticalLimit), m_imageBrush);
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Test_Scene0_Default:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene0_Wireframe:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
case DrawnContentType.Test_Scene1_Default:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene1_Randomized:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Randomized);
break;
case DrawnContentType.Test_Scene1_Wireframe:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
default:
System.Diagnostics.Debug.Assert(false); // Unexpected
break;
}
}
void DrawStuff(CanvasDrawingSession ds)
{
int horizontalLimit = (int)m_canvasControl.ActualWidth;
int verticalLimit = (int)m_canvasControl.ActualHeight;
DrawnContentType drawnContentType = (DrawnContentType)m_drawnContentTypeCombo.SelectedValue;
ds.Clear(NextRandomColor());
Vector2 point;
float radiusX;
float radiusY;
Random random = new Random();
m_canvasSwapChainPanel.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
switch (drawnContentType)
{
case DrawnContentType.Clear_Only:
break;
case DrawnContentType.Bitmap:
if (m_bitmap_tiger != null)
{
ds.DrawImage(m_bitmap_tiger, NextRandomPoint(horizontalLimit, verticalLimit).ToVector2());
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Rectangle_Filled:
Point bound0 = NextRandomPoint(horizontalLimit, verticalLimit);
Point bound1 = NextRandomPoint(horizontalLimit, verticalLimit);
m_linearGradientBrush.StartPoint = bound0.ToVector2();
m_linearGradientBrush.EndPoint = bound1.ToVector2();
ds.FillRectangle(
new Rect(bound0, bound1),
m_linearGradientBrush);
break;
case DrawnContentType.Ellipse_Fill:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.FillEllipse(
point, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.Circle_Fill:
ds.FillCircle(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
100,
NextRandomColor());
break;
case DrawnContentType.Text:
var p = NextRandomPoint(horizontalLimit, verticalLimit);
var x = (float)p.X;
var y = (float)p.Y;
var color = NextRandomColor();
ds.DrawLine(new Vector2(x, 0), new Vector2(x, verticalLimit), color);
ds.DrawLine(new Vector2(0, y), new Vector2(horizontalLimit, y), color);
ds.DrawText(
"Centered",
p.ToVector2(),
color,
new CanvasTextFormat()
{
FontSize = 18,
VerticalAlignment = CanvasVerticalAlignment.Center,
ParagraphAlignment = ParagraphAlignment.Center
});
var r = NextRandomRect(horizontalLimit, verticalLimit);
ds.DrawRectangle(r, color);
ds.DrawText(
m_quiteLongText,
r,
NextRandomColor(),
new CanvasTextFormat()
{
FontFamily = "Comic Sans MS",
FontSize = 18,
ParagraphAlignment = ParagraphAlignment.Justify,
Options = CanvasDrawTextOptions.Clip
});
break;
case DrawnContentType.ImageBrush:
if (m_bitmap_tiger != null)
{
m_imageBrush.Image = m_bitmap_tiger;
m_imageBrush.ExtendX = (CanvasEdgeBehavior)(m_random.Next(3));
m_imageBrush.ExtendY = (CanvasEdgeBehavior)(m_random.Next(3));
ds.FillRectangle(new Rect(0, 0, horizontalLimit, verticalLimit), m_imageBrush);
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.OffscreenTarget:
m_imageBrush.Image = m_offscreenTarget;
m_imageBrush.ExtendX = (CanvasEdgeBehavior)(m_random.Next(3));
m_imageBrush.ExtendY = (CanvasEdgeBehavior)(m_random.Next(3));
ds.FillRectangle(new Rect(0, 0, horizontalLimit, verticalLimit), m_imageBrush);
break;
case DrawnContentType.Gradients:
Vector2 center = NextRandomPoint(horizontalLimit, verticalLimit).ToVector2();
m_radialGradientBrush.Center = center;
float radius = m_random.Next(horizontalLimit / 2);
m_radialGradientBrush.OriginOffset = new Vector2(radius, radius);
m_radialGradientBrush.RadiusX = radius;
m_radialGradientBrush.RadiusY = radius;
ds.FillCircle(center, radius, m_radialGradientBrush);
Vector2 line0 = NextRandomPoint(horizontalLimit, verticalLimit).ToVector2();
Vector2 line1 = NextRandomPoint(horizontalLimit, verticalLimit).ToVector2();
m_linearGradientBrush.StartPoint = line0;
m_linearGradientBrush.EndPoint = line1;
float thickness = m_random.Next(horizontalLimit / 2);
ds.DrawLine(line0, line1, m_linearGradientBrush, thickness);
break;
case DrawnContentType.AlternateBitmapLoading:
if (m_bitmap_colorGrids != null)
{
Matrix3x2 scale = Matrix3x2.CreateScale(20);
ds.Transform = scale;
ds.DrawImage(m_bitmap_colorGrids[0]);
ds.Transform = scale * Matrix3x2.CreateTranslation(200, 0);
ds.DrawImage(m_bitmap_colorGrids[1]);
ds.Transform = scale * Matrix3x2.CreateTranslation(0, 200);
ds.DrawImage(m_bitmap_colorGrids[2]);
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.SwapChainPanel:
m_canvasSwapChainPanel.Visibility = Windows.UI.Xaml.Visibility.Visible;
float swapChainWidth = horizontalLimit * ((float)random.NextDouble() / 2 + 0.5f);
float swapChainHeight = verticalLimit * ((float)random.NextDouble() / 2 + 0.5f);
if (m_swapChain == null)
{
m_swapChain = new CanvasSwapChain(ds, swapChainWidth, swapChainHeight);
m_canvasSwapChainPanel.SwapChain = m_swapChain;
}
else
{
m_swapChain.ResizeBuffers(swapChainWidth, swapChainHeight);
}
using (CanvasDrawingSession panelDS = m_swapChain.CreateDrawingSession(NextRandomColor()))
{
panelDS.DrawCircle(swapChainWidth / 2.0f, swapChainHeight / 2.0f, 100.0f, NextRandomColor(), 20.0f);
}
m_swapChain.Present();
break;
case DrawnContentType.Test_Scene0_Default:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene0_Wireframe:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
case DrawnContentType.Test_Scene1_Default:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene1_Randomized:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Randomized);
break;
case DrawnContentType.Test_Scene1_Wireframe:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
default:
System.Diagnostics.Debug.Assert(false); // Unexpected
break;
}
}
void DrawStuff(CanvasDrawingSession ds)
{
int horizontalLimit = (int)m_canvasControl.ActualWidth;
int verticalLimit = (int)m_canvasControl.ActualHeight;
const float thickStrokeWidth = 80.0f;
DrawnContentType drawnContentType = (DrawnContentType)m_drawnContentTypeCombo.SelectedValue;
ds.Clear(NextRandomColor());
Rect rect;
Vector2 point;
float radiusX;
float radiusY;
Random random = new Random();
switch (drawnContentType)
{
case DrawnContentType.Clear_Only:
break;
case DrawnContentType.Bitmap:
if (m_bitmap_tiger != null)
{
ds.DrawImage(m_bitmap_tiger, NextRandomPoint(horizontalLimit, verticalLimit).ToVector2());
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_GaussianBlur:
if (m_bitmap_tiger != null)
{
GaussianBlurEffect blurEffect = new GaussianBlurEffect();
blurEffect.StandardDeviation = (float)random.NextDouble() * 5;
blurEffect.Source = m_bitmap_tiger;
ds.DrawImage(blurEffect, new Vector2(horizontalLimit / 2, verticalLimit / 2));
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_Saturation:
if (m_bitmap_tiger != null)
{
SaturationEffect saturationEffect = new SaturationEffect();
saturationEffect.Saturation = (float)random.NextDouble();
saturationEffect.Source = m_bitmap_tiger;
ds.DrawImage(saturationEffect, new Vector2(horizontalLimit / 2, verticalLimit / 2));
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_3DTransform:
if (m_bitmap_tiger != null)
{
Transform3DEffect transformEffect = new Transform3DEffect();
transformEffect.Source = m_bitmap_tiger;
transformEffect.InterpolationMode = CanvasImageInterpolation.Cubic;
transformEffect.TransformMatrix = Matrix4x4.CreateRotationZ((float)random.NextDouble(), new Vector3(0, 0, 0));
ds.DrawImage(transformEffect, new Vector2(horizontalLimit / 2, verticalLimit / 2));
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_Blend:
if (m_bitmap_tiger != null)
{
Transform3DEffect transformEffect = new Transform3DEffect();
transformEffect.Source = m_bitmap_tiger;
transformEffect.TransformMatrix = Matrix4x4.CreateRotationZ((float)random.NextDouble(), new Vector3(0, 0, 0));
BlendEffect blendEffect = new BlendEffect();
blendEffect.Background = m_bitmap_tiger;
blendEffect.Foreground = transformEffect;
blendEffect.Mode = BlendEffectMode.SoftLight;
ds.DrawImage(blendEffect, new Vector2(horizontalLimit / 2, verticalLimit / 2));
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Effect_Composite:
if (m_bitmap_tiger != null)
{
CompositeEffect compositeEffect = new CompositeEffect();
compositeEffect.Mode = CompositeEffectMode.SourceOver;
float angle = 0.0f;
float angleDelta = (float)random.NextDouble() + 0.05f;
int imageNumber = (int)(2 * Math.PI / angleDelta) + 1;
foreach (var i in Enumerable.Range(0, imageNumber))
{
Transform3DEffect transformEffect = new Transform3DEffect();
transformEffect.Source = m_bitmap_tiger;
transformEffect.TransformMatrix = Matrix4x4.CreateRotationZ(angle, new Vector3(0, 0, 0));
angle += angleDelta;
compositeEffect.Inputs.Add(transformEffect);
}
ds.DrawImage(compositeEffect, new Vector2(horizontalLimit / 2, verticalLimit / 2));
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.Line_Thin:
ds.DrawLine(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomColor());
break;
case DrawnContentType.Line_Thick:
ds.DrawLine(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Rectangle_Thin:
ds.DrawRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor());
break;
case DrawnContentType.Rectangle_Thick:
ds.DrawRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Rectangle_Filled:
ds.FillRectangle(
NextRandomRect(horizontalLimit, verticalLimit),
NextRandomColor());
break;
case DrawnContentType.RoundedRectangle_Thin:
NextRandomRoundedRect(horizontalLimit, verticalLimit, out rect, out radiusX, out radiusY);
ds.DrawRoundedRectangle(
rect, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.RoundedRectangle_Thick:
NextRandomRoundedRect(horizontalLimit, verticalLimit, out rect, out radiusX, out radiusY);
ds.DrawRoundedRectangle(
rect, radiusX, radiusY,
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Ellipse_Thin:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.DrawEllipse(
point, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.Ellipse_Thick:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.DrawEllipse(
point, radiusX, radiusY,
NextRandomColor(),
thickStrokeWidth);
break;
case DrawnContentType.Ellipse_Fill:
NextRandomEllipse(horizontalLimit, verticalLimit, out point, out radiusX, out radiusY);
ds.FillEllipse(
point, radiusX, radiusY,
NextRandomColor());
break;
case DrawnContentType.Circle_Fill:
ds.FillCircle(
NextRandomPoint(horizontalLimit, verticalLimit).ToVector2(),
100,
NextRandomColor());
break;
case DrawnContentType.Dashed_Lines:
DrawDashedLines(ds, NextRandomColor(), horizontalLimit, verticalLimit);
break;
case DrawnContentType.Text:
var p = NextRandomPoint(horizontalLimit, verticalLimit);
var x = (float)p.X;
var y = (float)p.Y;
var color = NextRandomColor();
ds.DrawLine(new Vector2(x, 0), new Vector2(x, verticalLimit), color);
ds.DrawLine(new Vector2(0, y), new Vector2(horizontalLimit, y), color);
ds.DrawText(
"Centered",
p.ToVector2(),
color,
new CanvasTextFormat()
{
FontSize = 18,
VerticalAlignment = CanvasVerticalAlignment.Center,
ParagraphAlignment = ParagraphAlignment.Center
});
var r = NextRandomRect(horizontalLimit, verticalLimit);
ds.DrawRectangle(r, color);
ds.DrawText(
m_quiteLongText,
r,
NextRandomColor(),
new CanvasTextFormat()
{
FontFamily = "Comic Sans MS",
FontSize = 18,
ParagraphAlignment = ParagraphAlignment.Justify,
Options = CanvasDrawTextOptions.Clip
});
break;
case DrawnContentType.ImageBrush:
if (m_bitmap_tiger != null)
{
m_imageBrush.Image = m_bitmap_tiger;
m_imageBrush.ExtendX = (CanvasEdgeBehavior)(m_random.Next(3));
m_imageBrush.ExtendY = (CanvasEdgeBehavior)(m_random.Next(3));
ds.FillRectangle(new Rect(0, 0, horizontalLimit, verticalLimit), m_imageBrush);
}
else
{
DrawNoBitmapErrorMessage(ds, horizontalLimit / 2, verticalLimit / 2);
}
break;
case DrawnContentType.OffscreenTarget:
m_imageBrush.Image = m_offscreenTarget;
m_imageBrush.ExtendX = (CanvasEdgeBehavior)(m_random.Next(3));
m_imageBrush.ExtendY = (CanvasEdgeBehavior)(m_random.Next(3));
ds.FillRectangle(new Rect(0, 0, horizontalLimit, verticalLimit), m_imageBrush);
break;
case DrawnContentType.Test_Scene0_Default:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene0_Wireframe:
GeometryTestScene0.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
case DrawnContentType.Test_Scene1_Default:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Default);
break;
case DrawnContentType.Test_Scene1_Randomized:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Randomized);
break;
case DrawnContentType.Test_Scene1_Wireframe:
GeometryTestScene1.DrawGeometryTestScene(ds, TestSceneRenderingType.Wireframe);
break;
default:
System.Diagnostics.Debug.Assert(false); // Unexpected
break;
}
}