■ ICanvas 인터페이스의 Translate/Scale/Rotate 메소드를 사용해 시계를 만드는 방법을 보여준다.
▶ GraphicsDrawable.cs
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namespace TestProject; /// <summary> /// 그래픽스 그리기 가능형 /// </summary> public class GraphicsDrawable : IDrawable { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 그리기 - Draw(canvas, dirtyRectangle) /// <summary> /// 그리기 /// </summary> /// <param name="canvas">캔버스</param> /// <param name="dirtyRectangle">더티 사각형</param> public void Draw(ICanvas canvas, RectF dirtyRectangle) { canvas.FillColor = Colors.Yellow; canvas.FillRectangle(dirtyRectangle); canvas.StrokeLineCap = LineCap.Round; canvas.FillColor = Colors.Gray; canvas.Translate(dirtyRectangle.Center.X, dirtyRectangle.Center.Y); float scale = Math.Min(dirtyRectangle.Width / 200f, dirtyRectangle.Height / 200f); canvas.Scale(scale, scale); // 시계 눈금 for(int angle = 0; angle < 360; angle += 6) { canvas.FillCircle(0, -90, angle % 30 == 0 ? 4 : 2); canvas.Rotate(6); } DateTime currentTime = DateTime.Now; // 시침 canvas.StrokeSize = 20; canvas.SaveState(); canvas.Rotate(30 * currentTime.Hour + currentTime.Minute / 2f); canvas.DrawLine(0, 0, 0, -50); canvas.RestoreState(); // 분침 canvas.StrokeSize = 10; canvas.SaveState(); canvas.Rotate(6 * currentTime.Minute + currentTime.Second / 10f); canvas.DrawLine(0, 0, 0, -70); canvas.RestoreState(); // 초침 canvas.StrokeSize = 2; canvas.SaveState(); canvas.Rotate(6 * currentTime.Second); canvas.DrawLine(0, 10, 0, -80); canvas.RestoreState(); } #endregion } |
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:local="clr-namespace:TestProject"> <ContentPage.Resources> <local:GraphicsDrawable x:Key="GraphicsDrawableKey" /> </ContentPage.Resources> <GraphicsView HorizontalOptions="Center" VerticalOptions="Center" WidthRequest="350" HeightRequest="350" Drawable="{StaticResource GraphicsDrawableKey}" /> </ContentPage> |
