[C#/WPF] Shape 클래스 : 환형 진행바 사용하기
■ Shape 클래스를 사용해 환형 진행바를 만드는 방법을 보여준다. ▶ DoubleToPercentageStringConverter.cs
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using System; using System.Globalization; using System.Windows.Data; namespace TestProject { /// <summary> /// 실수→백분율 문자열 변환자 /// </summary> public class DoubleToPercentageStringConverter : IValueConverter { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 변환하기 - Convert(sourceValue, targetType, parameter, cultureInfo) /// <summary> /// 변환하기 /// </summary> /// <param name="sourceValue">소스 값</param> /// <param name="targetType">타겟 타입</param> /// <param name="parameter">매개 변수</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>변환 값</returns> public object Convert(object sourceValue, Type targetType, object parameter, CultureInfo cultureInfo) { double value = (double)sourceValue; string targetValue = string.Format("{0}%", value); return targetValue; } #endregion #region 역변환하기 - ConvertBack(sourceValue, targetType, parameter, cultureInfo) /// <summary> /// 역변환하기 /// </summary> /// <param name="sourceValue">소스 값</param> /// <param name="targetType">타겟 타입</param> /// <param name="parameter">매개 변수</param> /// <param name="cultureInfo">문화 정보</param> /// <returns>역변환 값</returns> public object ConvertBack(object sourceValue, Type targetType, object parameter, CultureInfo cultureInfo) { throw new NotImplementedException(); } #endregion } } |
▶ CircularProgressBar.cs
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using System; using System.Windows; using System.Windows.Media; using System.Windows.Shapes; namespace TestProject { /// <summary> /// 환형 진행바 /// </summary> public class CircularProgressBar : Shape { //////////////////////////////////////////////////////////////////////////////////////////////////// Dependency Property ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 값 속성 - ValueProperty /// <summary> /// 값 속성 /// </summary> public static readonly DependencyProperty ValueProperty = DependencyProperty.Register ( "Value", typeof(double), typeof(CircularProgressBar), new FrameworkPropertyMetadata ( 0.0, FrameworkPropertyMetadataOptions.AffectsRender, null, new CoerceValueCallback(ValuePropertyCoerceValueCallback) ) ); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 값 - Value /// <summary> /// 값 /// </summary> public double Value { get { return (double)GetValue(ValueProperty); } set { SetValue(ValueProperty, value); } } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 정의 지오메트리 - DefiningGeometry /// <summary> /// 정의 지오메트리 /// </summary> protected override Geometry DefiningGeometry { get { double startAngle = 90.0; double endAngle = 90.0 - ((Value / 100.0) * 360.0); double maximumWidth = Math.Max(0.0, RenderSize.Width - StrokeThickness); double maximumHeight = Math.Max(0.0, RenderSize.Height - StrokeThickness); double xStart = maximumWidth / 2.0 * Math.Cos(startAngle * Math.PI / 180.0); double yStart = maximumHeight / 2.0 * Math.Sin(startAngle * Math.PI / 180.0); double xEnd = maximumWidth / 2.0 * Math.Cos(endAngle * Math.PI / 180.0); double yEnd = maximumHeight / 2.0 * Math.Sin(endAngle * Math.PI / 180.0); StreamGeometry streamGeometry = new StreamGeometry(); using(StreamGeometryContext context = streamGeometry.Open()) { context.BeginFigure ( new Point ( (RenderSize.Width / 2.0) + xStart, (RenderSize.Height / 2.0) - yStart ), true, false ); context.ArcTo ( new Point ( (RenderSize.Width / 2.0) + xEnd, (RenderSize.Height / 2.0) - yEnd ), new Size(maximumWidth / 2.0, maximumHeight / 2), 0.0, (startAngle - endAngle) > 180, SweepDirection.Clockwise, true, false ); } return streamGeometry; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Static #region 생성자 - CircularProgressBar() /// <summary> /// 생성자 /// </summary> static CircularProgressBar() { StrokeThicknessProperty.OverrideMetadata ( typeof(CircularProgressBar), new FrameworkPropertyMetadata(10.0) ); Brush brush = new SolidColorBrush(Color.FromArgb(255, 6, 176, 37)); brush.Freeze(); StrokeProperty.OverrideMetadata ( typeof(CircularProgressBar), new FrameworkPropertyMetadata(brush) ); FillProperty.OverrideMetadata ( typeof(CircularProgressBar), new FrameworkPropertyMetadata(Brushes.Transparent) ); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 값 속성 값 강제 콜백 처리하기 - ValuePropertyCoerceValueCallback(d, value) /// <summary> /// 값 속성 값 강제 콜백 처리하기 /// </summary> /// <param name="d">의존 객체</param> /// <param name="value">값</param> /// <returns>처리 결과</returns> private static object ValuePropertyCoerceValueCallback(DependencyObject d, object value) { double valueDouble = (double)value; valueDouble = Math.Min(valueDouble, 99.999); valueDouble = Math.Max(valueDouble, 0.0 ); return valueDouble; } #endregion } } |
▶ MainWindow.xaml
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<Window x:Class="TestProject.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="Shape 클래스 : 환형 진행바 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <Window.Resources> <local:DoubleToPercentageStringConverter x:Key="DoubleToPercentageStringConverterKey" /> <Style x:Key="CircularProgressBarStyleKey" TargetType="ProgressBar"> <Setter Property="Width" Value="150" /> <Setter Property="Height" Value="150" /> <Setter Property="Foreground" Value="#01d328" /> <Setter Property="Maximum" Value="100" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ProgressBar"> <Grid Name="rootGrid" SnapsToDevicePixels="true"> <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="32" Foreground="DarkGray" Text="{TemplateBinding Value, Converter={StaticResource DoubleToPercentageStringConverterKey}}" /> <local:CircularProgressBar Stroke="{TemplateBinding Foreground}" Value="{TemplateBinding Value}" /> </Grid> </ControlTemplate> </Setter.Value> </Setter> </Style> </Window.Resources> <Grid> <ProgressBar Style="{DynamicResource CircularProgressBarStyleKey}" Value="55" /> </Grid> </Window> |
TestProject.zip
