public override void GetPatternRender(ICanvasResourceCreator resourceCreator, CanvasDrawingSession drawingSession, CanvasGeometry geometry)
{
ICanvasBrush canvasBrush = this.Style.Stroke.GetICanvasBrush(resourceCreator);
float strokeWidth = this.Style.StrokeWidth;
CanvasStrokeStyle strokeStyle = this.Style.StrokeStyle;
Transformer transformer = base.Transform.GetActualTransformer();
TransformerBorder border = new TransformerBorder(transformer);
if (this.GridType != PatternGridType.Vertical)
{
for (float i = border.Left; i < border.Right; i += this.HorizontalStep)
{
drawingSession.DrawLine(i, border.Top, i, border.Bottom, canvasBrush, strokeWidth, strokeStyle);
}
}
if (this.GridType != PatternGridType.Horizontal)
{
for (float i = border.Top; i < border.Bottom; i += this.VerticalStep)
{
drawingSession.DrawLine(border.Left, i, border.Right, i, canvasBrush, strokeWidth, strokeStyle);
}
}
}
public static void Render()
{
using (CanvasDrawingSession ds = App.Model.SecondSourceRenderTarget.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
//左上右下的位置
float LineL = 0;
float LineT = 0;
float LineR = App.Model.Width;
float LineB = App.Model.Height;
//线循环
for (float X = LineL; X < LineR; X += App.Setting.GridsSpace)
{
float xx = LineL + X;
ds.DrawLine(xx, LineT, xx, LineB, App.Model.GridsColor);
}
for (float Y = LineT; Y < LineB; Y += App.Setting.GridsSpace)
{
float yy = LineT + Y;
ds.DrawLine(LineL, yy, LineR, yy, App.Model.GridsColor);
}
}
App.Model.isReRender = true; //重新渲染
App.Model.Refresh++; //画布刷新
}
private static void DrawFunctionDeclaration(
CanvasDrawingSession session,
float offset,
IndentationType indentationType)
{
session.FillRoundedRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, 9999, 9999, FunctionBackgroundColor);
session.DrawRoundedRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, 9999, 9999, OutlineColor);
session.DrawText("f", IndentationIndicatorsLeftMargin + 4f, offset, TextColor, TextFormat);
// Vertical guide
if ((indentationType & IndentationType.FullSize) != 0)
{
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorsElementHeight, OutlineColor);
}
else
{
float middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f;
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, middleOffset, OutlineColor);
}
// Horizontal marker
if ((indentationType & IndentationType.IsClosing) != 0)
{
float
horizontalOffset = IndentationIndicatorsMiddleMargin - 0.5f,
middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f + 0.5f;
session.DrawLine(horizontalOffset, middleOffset, IndentationIndicatorsRightMargin, middleOffset, OutlineColor);
}
}
private static void DrawLine(
CanvasDrawingSession session,
float offset,
IndentationType indentationType)
{
// Vertical guide
if ((indentationType & IndentationType.FullSize) != 0)
{
session.DrawLine(IndentationIndicatorsMiddleMargin, offset, IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorsElementHeight, OutlineColor);
}
else
{
float middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f;
session.DrawLine(IndentationIndicatorsMiddleMargin, offset, IndentationIndicatorsMiddleMargin, middleOffset, OutlineColor);
}
// Horizontal marker
if ((indentationType & IndentationType.IsClosing) != 0)
{
float
horizontalOffset = IndentationIndicatorsMiddleMargin - 0.5f,
middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f + 0.5f;
session.DrawLine(horizontalOffset, middleOffset, IndentationIndicatorsRightMargin, middleOffset, OutlineColor);
}
}
public void Draw(CanvasDrawingSession graphics)
{
if (_points == null || _points.Count == 0)
{
return;
}
var brush = new CanvasSolidColorBrush(graphics, drawingColor);
if (_points.Count == 1)
{
graphics.DrawLine((float)_points[0].X, (float)_points[0].Y, (float)_points[0].X, (float)_points[0].Y, brush, drawingSize);
return;
}
var style = new CanvasStrokeStyle()
{
DashCap = CanvasCapStyle.Round,
StartCap = CanvasCapStyle.Round,
EndCap = CanvasCapStyle.Round
};
for (int i = 0; i < _points.Count - 1; ++i)
{
graphics.DrawLine((float)_points[i].X, (float)_points[i].Y,
(float)_points[i + 1].X, (float)_points[i + 1].Y,
brush, drawingSize, style);
}
}
public static void DrawComponents(Data.Layer layer, CanvasDrawingSession ds, float rescale, Color componentColor,
bool drawSelection = false)
{
var margin = 4 * rescale;
var originColor = Color.FromArgb(135, 34, 34, 34);
var selectedComponentColor = Color.FromArgb(
135,
(byte)Math.Max(componentColor.R - 90, 0),
(byte)Math.Max(componentColor.G - 90, 0),
(byte)Math.Max(componentColor.B - 90, 0)
);
foreach (var component in layer.Components)
{
ds.FillGeometry(component.ClosedCanvasPath, drawSelection && component.IsSelected ? selectedComponentColor : componentColor);
ds.DrawGeometry(component.OpenCanvasPath, componentColor, strokeWidth: rescale);
if (drawSelection && component.IsSelected)
{
var origin = component.Origin;
ds.DrawLine(origin.X, origin.Y + margin, origin.X, origin.Y - margin, originColor, strokeWidth: rescale);
ds.DrawLine(origin.X - margin, origin.Y, origin.X + margin, origin.Y, originColor, strokeWidth: rescale);
}
}
}
public override void Draw(CanvasDrawingSession session)
{
Vector2 leftArrow = new Vector2(4, 8);
Vector2 rightArrow = new Vector2(-4, 8);
double rad;
foreach (var node in Nodes)
{
foreach (var neighbour in node.Neighbours)
{
var color = (node.Waypoint.IsSelected() && neighbour.Waypoint.IsSelected()) ? Colors.Red : Colors.Yellow;
session.DrawLine(node.Waypoint.Position, neighbour.Waypoint.Position, color);
Vector2 delta = neighbour.Waypoint.Position - node.Waypoint.Position;
rad = Math.Atan(delta.Y / delta.X);
double sin = -(delta.Y * 1d) / delta.Length();
double cos = -(delta.X * 1d) / delta.Length();
Vector2 left = new Vector2((float)(-leftArrow.X * sin + leftArrow.Y * cos), (float)(leftArrow.X * cos + leftArrow.Y * sin));
Vector2 right = new Vector2((float)(-rightArrow.X * sin + rightArrow.Y * cos), (float)(rightArrow.X * cos + rightArrow.Y * sin));
session.DrawLine(neighbour.Waypoint.Position, neighbour.Waypoint.Position + left, color);
session.DrawLine(neighbour.Waypoint.Position, neighbour.Waypoint.Position + right, color);
}
node.Waypoint.Draw(session);
}
}
private static void DrawBoundCore(CanvasDrawingSession drawingSession, Vector2 leftTop, Vector2 rightTop, Vector2 rightBottom, Vector2 leftBottom, Windows.UI.Color accentColor)
{
drawingSession.DrawLine(leftTop, rightTop, accentColor);
drawingSession.DrawLine(rightTop, rightBottom, accentColor);
drawingSession.DrawLine(rightBottom, leftBottom, accentColor);
drawingSession.DrawLine(leftBottom, leftTop, accentColor);
}
private void DrawBackground(CanvasDrawingSession ds, Matrix3x2 transform)
{
const int levelUpTime = 60;
// After levelling up we flash the screen white for a bit
Color normalColor = Colors.Blue;
Color levelUpFlashColor = Colors.White;
var flashAmount = Math.Min(1, (leveledUpTimer / (float)levelUpTime));
ds.Clear(InterpolateColors(normalColor, levelUpFlashColor, flashAmount));
var topLeft = Vector2.Transform(new Vector2(0, 0), transform);
var bottomRight = Vector2.Transform(new Vector2(1, 1), transform);
var middle = (bottomRight.X - topLeft.X) / 2 + topLeft.X;
// and display some text to let the player know what happened
if (leveledUpTimer < levelUpTime * 2)
{
ds.DrawText("Level Up!", middle, 0, Colors.White, levelUpFormat);
}
// Draw some lines to show where the top / bottom of the play area is.
var topLine = topLeft.Y - Letter.TextFormat.FontSize;
var bottomLine = bottomRight.Y + Letter.TextFormat.FontSize;
Color lineColor = levelUpFlashColor;
lineColor.A = 128;
ds.DrawLine(0, topLine, bottomRight.X, topLine, lineColor, 3);
ds.DrawLine(0, bottomLine, bottomRight.X, bottomLine, lineColor, 3);
}
public static void Apply()
{
//Undo：撤销
Undo undo = new Undo();
undo.TargeInstantiation(App.Model.Index, App.Model.CurrentRenderTarget);
App.UndoAdd(undo);
using (CanvasDrawingSession ds = App.Model.CurrentRenderTarget.CreateDrawingSession())
{
//左上右下的位置
float LineL = 0;
float LineT = 0;
float LineR = App.Model.Width;
float LineB = App.Model.Height;
//线循环
for (float X = LineL; X < LineR; X += App.Setting.GridsSpace)
{
float xx = LineL + X;
ds.DrawLine(xx, LineT, xx, LineB, App.Model.GridsColor);
}
for (float Y = LineT; Y < LineB; Y += App.Setting.GridsSpace)
{
float yy = LineT + Y;
ds.DrawLine(LineL, yy, LineR, yy, App.Model.GridsColor);
}
}
}
private void DrawTriangleMark(CanvasDrawingSession session, int x, int y, Color color, Color background)
{
y = (this.SharedBoardControlState.BoardHeight - 1) - y;
session.FillRectangle(
_cellSize * x,
_cellSize * y,
_cellSize,
_cellSize,
background);
session.DrawLine(
new Vector2(_cellSize * (x + 0.2f), _cellSize * (y + 0.8f)),
new Vector2(_cellSize * (x + 0.5f), _cellSize * (y + 0.2f)),
color, 3);
session.DrawLine(
new Vector2(_cellSize * (x + 0.5f), _cellSize * (y + 0.2f)),
new Vector2(_cellSize * (x + 0.8f), _cellSize * (y + 0.8f)),
color, 3);
session.DrawLine(
new Vector2(_cellSize * (x + 0.8f), _cellSize * (y + 0.8f)),
new Vector2(_cellSize * (x + 0.2f), _cellSize * (y + 0.8f)),
color, 3);
}
private void DrawLine(CanvasControl sender, CanvasDrawingSession ds)
{
var width = (float)sender.ActualWidth;
var height = (float)sender.ActualHeight;
var middle = height / 2;
int steps = Math.Min((int)(width / 10), 30);
for (int i = 0; i < steps; ++i)
{
var mu = (float)i / steps;
var a = (float)(mu * Math.PI * 2);
var color = GradientColor(mu);
var x = width * mu;
var y = (float)(middle + Math.Sin(a) * (middle * 0.3));
var strokeWidth = (float)(Math.Cos(a) + 1) * 5;
ds.DrawLine(x, 0, x, y, color, strokeWidth);
ds.DrawLine(x, height, x, y, color, 10 - strokeWidth);
}
}
public void Draw(CanvasDrawingSession ds, float alpha = 1)
{
// Create a drop shadow by drawing a black circle with an offset position.
const float dropShadowOffset = 4;
ds.FillCircle(Position + new Vector2(dropShadowOffset), Radius, AdjustAlpha(Colors.Black, alpha));
// Draw a white X.
const float crossWidth = 3;
float crossSize = Radius * 0.8f;
Vector2 cross1 = new Vector2(crossSize, crossSize);
Vector2 cross2 = new Vector2(crossSize, -crossSize);
ds.DrawLine(Position - cross1, Position + cross1, AdjustAlpha(Colors.White, alpha), crossWidth);
ds.DrawLine(Position - cross2, Position + cross2, AdjustAlpha(Colors.White, alpha), crossWidth);
// Fill the circle with its unique color.
ds.FillCircle(Position, Radius, AdjustAlpha(color, alpha));
// White border around it.
ds.DrawCircle(Position, Radius, AdjustAlpha(Colors.White, alpha));
// Text label.
ds.DrawText(label, Position, AdjustAlpha(Colors.White, alpha), textFormat);
}
internal void DrawHandle(CanvasDrawingSession win2d, DrawingPoint befor, bool atlast)
{
if (atlast && befor != null)
{
if (befor.IsHaveControlPoint)
{
var cp = befor.getControlPoint(false);
var pt = befor.getPoint();
win2d.DrawLine(pt, cp, Colors.Green);
DrawHandle_sub(win2d, cp.X, cp.Y, true, Colors.Green);
}
}
if (_haveControlPoint)
{
DrawHandle_sub(win2d, _point.X, _point.Y, true, Colors.Blue);
if (atlast)
{
var x = _point.X - (_controlPoint0.X - _point.X);
var y = _point.Y - (_controlPoint0.Y - _point.Y);
win2d.DrawLine(new Vector2(x, y), _controlPoint0, Colors.Green);
DrawHandle_sub(win2d, x, y, true, Colors.Green);
}
DrawHandle_sub(win2d, _controlPoint0.X, _controlPoint0.Y, true, Colors.Green);
}
else
{
DrawHandle_sub(win2d, _point.X, _point.Y, false, Colors.Blue);
}
}
//CanvasBitmap _brush_image;
//public async void InitImageBrush()
//{
// if (DrawingColor == Colors.Transparent)
// {
// if (_brush_image == null)
// {
// CanvasDevice cd = CanvasDevice.GetSharedDevice();
// _brush_image = await CanvasBitmap.LoadAsync(cd, new Uri("ms-appx:///Images/default_back.png"));
// }
// }
//}
public void Draw(CanvasDrawingSession graphics, float scale)
{
if (_points != null && _points.Count > 0)
{
ICanvasBrush brush;
//if (DrawingColor == Colors.Transparent)
//{
// if (_brush_image == null)
// return;
// //brush = new CanvasImageBrush(graphics, _brush_image);
//}
//else
//{
// brush = new CanvasSolidColorBrush(graphics, DrawingColor);
//}
brush = new CanvasSolidColorBrush(graphics, DrawingColor);
if (_points.Count == 1)
{
graphics.DrawLine((float)_points[0].X * scale, (float)_points[0].Y * scale, (float)_points[0].X * scale, (float)_points[0].Y * scale, brush, DrawingSize * scale);
}
else
{
var style = new CanvasStrokeStyle();
style.DashCap = CanvasCapStyle.Round;
style.StartCap = CanvasCapStyle.Round;
style.EndCap = CanvasCapStyle.Round;
for (int i = 0; i < _points.Count - 1; ++i)
{
graphics.DrawLine((float)_points[i].X * scale, (float)_points[i].Y * scale, (float)_points[i + 1].X * scale, (float)_points[i + 1].Y * scale, brush, DrawingSize * scale, style);
}
}
}
}
private void AddDraw(CanvasDrawingSession drawingSession)
{
ILayer layer = this.CurveLayer;
Matrix3x2 matrix = this.ViewModel.CanvasTransformer.GetMatrix();
Vector2 lastPoint = Vector2.Transform(this._addLastNode.Point, matrix);
Vector2 endPoint = Vector2.Transform(this._addEndNode.Point, matrix);
// Geometry
ICanvasBrush canvasBrush = layer.Style.Stroke.GetICanvasBrush(LayerManager.CanvasDevice);
float strokeWidth = layer.Style.StrokeWidth;
CanvasStrokeStyle strokeStyle = layer.Style.StrokeStyle;
drawingSession.DrawLine(lastPoint, endPoint, canvasBrush, strokeWidth, strokeStyle);
// Draw
drawingSession.DrawLine(lastPoint, endPoint, this.ViewModel.AccentColor);
drawingSession.DrawWireframe(layer, matrix, this.ViewModel.AccentColor);
drawingSession.DrawNode3(endPoint);
drawingSession.DrawNodeCollection(layer.Nodes, matrix, this.ViewModel.AccentColor);
// Snapping
if (this.IsSnap)
{
this.Snap.Draw(drawingSession, matrix);
this.Snap.DrawNode2(drawingSession, matrix);
}
}
public void RenderRays(Vector2 origin, Vector2[] rays)
{
foreach (var ray in rays)
{
session.DrawLine(origin, ray + origin, Colors.Yellow, 1);
}
}
public static void DrawPath(CanvasDrawingSession args, Vector2[] vectors, int[] order, Color color, float stroke)
{
for (int i = 0; i < order.Length - 1; i++)
{
args.DrawLine(vectors[order[i]], vectors[order[i + 1]], color, stroke);
}
args.DrawLine(vectors[order[0]], vectors[order[order.Length - 1]], color, stroke);
}
public static void DrawPolygon(this CanvasDrawingSession graphics, Vector2[] points, Color color)
{
for (int i = 0; i < points.Length - 1; i++)
{
graphics.DrawLine(points[i + 0], points[i + 1], color);
}
graphics.DrawLine(points[points.Length - 1], points[0], color);
}
public void DrawCommon(CanvasDrawingSession g)
{
if (X1 == -1 || Y1 == -1)
{
return;
}
if (X1 == X2 && Y1 == Y2)
{
return;
}
g.DrawLine(X1, Y1, X2, Y2, Pen.Color, Pen.Width);
//save tansform
var save = g.Transform;
var radians = -(float)Radians;//反方向旋转绘图
if (IsGlyphVisible)
{
g.Transform = Matrix3x2.CreateRotation(radians, new Vector2(X1, Y1));
g.DrawLine(X1, Y1 - Pen.GlyphSize / 2, X1, Y1 + Pen.GlyphSize / 2,
Pen.Color, Pen.Width);
g.Transform = Matrix3x2.CreateRotation(radians, new Vector2(X2, Y2));
g.DrawLine(X2, Y2 - Pen.GlyphSize / 2, X2, Y2 + Pen.GlyphSize / 2,
Pen.Color, Pen.Width);
}
var textLayout = CreateTextLayout(Distance.Round3().ToString(), g);
var bounds = textLayout.LayoutBounds;
var size = new Size(bounds.Width + 10, bounds.Height);
var centerX = X1 + (X2 - X1 - size.Width) / 2;
var centerY = Y1 + (Y2 - Y1 - size.Height) / 2;
var ySegment = size.Height / 2 + Pen.Width / 2 + 5;
var offsetX = Math.Sin(radians) * ySegment;
var offsetY = Math.Cos(radians) * ySegment;
offsetX = Math.Abs(offsetX);
offsetX = radians < 0 ? offsetX : -offsetX;
var left = centerX - offsetX;
var top = centerY - offsetY;
centerX = left + size.Width / 2;
centerY = top + size.Height / 2;
g.Transform = Matrix3x2.CreateRotation(radians, new Vector2((float)centerX, (float)centerY));
var rect = new Rect(left, top, size.Width, size.Height);
g.FillRectangle(rect, Pen.TextBackground);
g.DrawTextLayout(textLayout, (float)left + 5, (float)top, Pen.TextColor);
//recover transform
g.Transform = save;
}
private static void DrawDiffMarker(
CanvasDrawingSession session,
float offset,
Color strokeColor,
Color outlineColor)
{
session.DrawLine(GitDiffMarkersMiddleMargin, offset, GitDiffMarkersMiddleMargin, offset + IndentationIndicatorsElementHeight, outlineColor, GitDiffMarkerOutlineWidth);
session.DrawLine(GitDiffMarkersMiddleMargin, offset, GitDiffMarkersMiddleMargin, offset + IndentationIndicatorsElementHeight, strokeColor, GitDiffMarkerStrokeWidth);
}
public void drawGrid(double s, CanvasDrawingSession ds)
{
for (float x = -7.5f; x <= 7.5f; x += 1)
{
var m11 = ds.Transform.M11;
ds.DrawLine(x, -7.5f, x, 7.5f, Colors.DarkGray, 1 / (float)s);
ds.DrawLine(-7.5f, x, 7.5f, x, Colors.DarkGray, 1 / (float)s);
}
}
void DrawLine(Vector2 p1, Vector2 p2, Color color, float strokeWidth)
{
if (!isWireframe)
{
currentDrawingSession.DrawLine(p1, p2, color, strokeWidth);
}
else
{
currentDrawingSession.DrawLine(p1, p2, Colors.Black);
}
}
public void Draw(CanvasDrawingSession graphics)
{
if (Lines == null)
{
return;
}
UpdateLines();
graphics.DrawLine(Lines[0].StartPoint, Lines[0].EndPoint, Colors.White);
graphics.DrawLine(Lines[1].StartPoint, Lines[1].EndPoint, Colors.White);
graphics.DrawLine(Lines[2].StartPoint, Lines[2].EndPoint, Colors.White);
}
void DrawLabel(CanvasDrawingSession ds, string text, float h1InEmSpace, float h2InEmSpace, Side whichSide, int tab)
{
//
// The heights are offset from the baseline.
//
float h1 = baselineInWorldSpace + EmSpaceToWorldSpace(h1InEmSpace);
float h2 = baselineInWorldSpace + EmSpaceToWorldSpace(h2InEmSpace);
float midHeight = (h1 + h2) / 2;
float amountPerTab = sizeDim / 7.0f;
if (whichSide == Side.Left)
{
float margin = tab * amountPerTab;
ds.DrawLine(margin, h1, margin, h2, color, strokeWidth);
ds.DrawLine(margin, h1, horizontalMidpoint, h1, color, strokeWidth);
ds.DrawLine(margin, h2, horizontalMidpoint, h2, color, strokeWidth);
ds.DrawLine(margin - amountPerTab, midHeight, margin, midHeight, color, strokeWidth);
ds.DrawText(text, margin, midHeight, color, rightJustifiedTextFormat);
}
else
{
float rMargin = layoutSize.X - (tab * amountPerTab);
ds.DrawLine(rMargin, h1, rMargin, h2, color, strokeWidth);
ds.DrawLine(rMargin, h1, horizontalMidpoint, h1, color, strokeWidth);
ds.DrawLine(rMargin, h2, horizontalMidpoint, h2, color, strokeWidth);
ds.DrawLine(rMargin + amountPerTab, midHeight, rMargin, midHeight, color, strokeWidth);
ds.DrawText(text, rMargin, midHeight, color, leftJustifiedTextFormat);
}
NextLabel();
}
public void DrawBoard(CanvasDrawingSession drawingSession)//рисуем доску из клеток
{
for (float i = 0; i < iBoardWidth; i++)
{
Color drB = i == 0 ? Colors.MediumSeaGreen : colorDrawBrush;
drawingSession.DrawLine(i + startX + 0.5f, startY + 0.5f, i + startX + 0.5f, iBoardHeight + startY - 0.5f, colorBoard, 0.08f);
}
for (float i = 0; i < iBoardHeight; i++)
{
Color drB = i == 0 ? Colors.MediumSeaGreen : colorDrawBrush;
drawingSession.DrawLine(startX + 0.5f, i + startY + 0.5f, iBoardWidth + startX - 0.5f, i + startY + 0.5f, colorBoard, 0.08f);
}
//drawingSession.DrawText("Points!", 1, iBoardHeight-2, Colors.DarkGreen);
}
private void DrawLine(CanvasControl sender, CanvasDrawingSession ds)
{
var width = (float)sender.ActualWidth;
var height = (float)sender.ActualHeight;
var rnd = Utils.GetRandomBoolean();
var stroke = this.defaultStroke;
if (rnd)
{
ds.DrawLine(0, 0, width - stroke, height - stroke, ForegroundColor, stroke);
}
else
{
ds.DrawLine(0, height - stroke, width - stroke, 0, ForegroundColor, stroke);
}
}
//public static void FillRectangle(this CanvasDrawingSession session, Rect rect, Paint paint)
//{
//}
public static void DrawLines(this CanvasDrawingSession session, float[] points, int start, int length, Paint paint)
{
for (int i = start; i < length - 3; i += 4)
{
session.DrawLine(points[i], points[i + 1], points[i + 2], points[i + 3], paint.Color, paint.StrokeWidth);
}
}
internal virtual void drawLine(int x1, int y1, int x2, int y2)
{
//using (createAlphaLayer())
//{
graphics.DrawLine(x1, y1, x2, y2, Color.FromArgb((byte)alpha, c.R, c.G, c.B));
//}
}
/// <summary>Draw Line to canvas according coordinates</summary>
public void DrawLine(float x1, float y1, float x2, float y2)
{
if (_strokeColor.A > 0)
{
_session.DrawLine(x1, y1, x2, y2, _strokeColor, _strokeWidth, _strokeStyle);
}
}
private void DrawBackground(CanvasDrawingSession ds, Matrix3x2 transform)
{
const int levelUpTime = 60;
// After levelling up we flash the screen white for a bit
Color normalColor = Colors.Blue;
Color levelUpFlashColor = Colors.White;
var flashAmount = Math.Min(1, (leveledUpTimer / (float)levelUpTime));
ds.Clear(InterpolateColors(normalColor, levelUpFlashColor, flashAmount));
var topLeft = Vector2.Transform(new Vector2(0, 0), transform);
var bottomRight = Vector2.Transform(new Vector2(1, 1), transform);
var middle = (bottomRight.X - topLeft.X) / 2 + topLeft.X;
// and display some text to let the player know what happened
if (leveledUpTimer < levelUpTime * 2)
{
ds.DrawText("Level Up!", middle, 0, Colors.White, levelUpFormat);
}
// Draw some lines to show where the top / bottom of the play area is.
var topLine = topLeft.Y - Letter.TextFormat.FontSize;
var bottomLine = bottomRight.Y + Letter.TextFormat.FontSize;
Color lineColor = levelUpFlashColor;
lineColor.A = 128;
ds.DrawLine(0, topLine, bottomRight.X, topLine, lineColor, 3);
ds.DrawLine(0, bottomLine, bottomRight.X, bottomLine, lineColor, 3);
}
