ProgressBarRenderer 클래스

정의

네임스페이스:

System.Windows.Forms

어셈블리:

System.Windows.Forms.dll

비주얼 스타일을 사용하여 진행률 표시줄 컨트롤을 렌더링하는 데 사용되는 메서드를 제공합니다. 이 클래스는 상속될 수 없습니다.

public ref class ProgressBarRenderer sealed

public ref class ProgressBarRenderer abstract sealed

public sealed class ProgressBarRenderer

public static class ProgressBarRenderer

type ProgressBarRenderer = class

Public NotInheritable Class ProgressBarRenderer

Public Class ProgressBarRenderer

상속

Object

ProgressBarRenderer

예제

다음 코드 예제를 사용 하는 사용자 지정 컨트롤을 만드는 방법을 보여 줍니다 합니다 DrawVerticalBar 고 DrawVerticalChunks 세로 진행률 표시줄을 그리는 방법입니다. 컨트롤에서 사용 된 Timer 에 초당 추가 된 조각 진행률 표시줄을 다시 그리도록 합니다. 합니다 SetupProgressBar 메서드를 ChunkThickness 및 ChunkSpaceThickness 그려지는 각 점진적으로 더 큰 사각형의 높이 계산 하는 속성입니다.

#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
#using <System.dll>

using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::VisualStyles;

namespace ProgressBarRendererSample
{
    public ref class VerticalProgressBar : public Control
    {
    private:
        int numberChunksValue;
        int ticks;
        Timer^ progressTimer;
        array<Rectangle>^ progressBarRectangles;

    public:
        VerticalProgressBar() : Control()
        {
            this->Location = Point(10, 10);
            this->Width = 50;
            progressTimer = gcnew Timer();

            // The progress bar will update every second.
            progressTimer->Interval = 1000;
            progressTimer->Tick += gcnew EventHandler(this,
                &VerticalProgressBar::progressTimer_Tick);

            // This property also calls SetupProgressBar to initialize
            // the progress bar rectangles if styles are enabled.
            NumberChunks = 20;

            // Set the default height if visual styles are not enabled.
            if (!ProgressBarRenderer::IsSupported)
            {
                this->Height = 100;
            }
        }

        // Specify the number of progress bar chunks to base the height on.
    public:
        property int NumberChunks
        {
            int get()
            {
                return numberChunksValue;
            }

            void set(int value)
            {
                if (value <= 50 && value > 0)
                {
                    numberChunksValue = value;
                }
                else
                {
                    MessageBox::Show("Number of chunks must be between " +
                        "0 and 50; defaulting to 10");
                    numberChunksValue = 10;
                }

                // Recalculate the progress bar size, if visual styles
                // are active.
                if (ProgressBarRenderer::IsSupported)
                {
                    SetupProgressBar();
                }
            }
        }

        // Draw the progress bar in its normal state.
    protected:
        virtual void OnPaint(PaintEventArgs^ e) override
        {
            __super::OnPaint(e);

            if (ProgressBarRenderer::IsSupported)
            {
                ProgressBarRenderer::DrawVerticalBar(e->Graphics, 
                    ClientRectangle);
                this->Parent->Text = "VerticalProgressBar Enabled";
            }
            else
            {
                this->Parent->Text = "VerticalProgressBar Disabled";
            }
        }

        // Initialize the rectangles used to paint the states of the
        // progress bar.
    private:
        void SetupProgressBar()
        {
            if (!ProgressBarRenderer::IsSupported)
            {
                return;
            }

            // Determine the size of the progress bar frame.
            this->Size = System::Drawing::Size(ClientRectangle.Width,
                (NumberChunks * (ProgressBarRenderer::ChunkThickness + 
                (2 * ProgressBarRenderer::ChunkSpaceThickness))) + 6);

            // Initialize the rectangles to draw each step of the
            // progress bar.
            progressBarRectangles = gcnew array<Rectangle>(NumberChunks);

            for (int i = 0; i < NumberChunks; i++)
            {
                // Use the thickness defined by the current visual style
                // to calculate the height of each rectangle. The size
                // adjustments ensure that the chunks do not paint over
                // the frame.

                int filledRectangleHeight = 
                    ((i + 1) * (ProgressBarRenderer::ChunkThickness +
                    (2 * ProgressBarRenderer::ChunkSpaceThickness)));

                progressBarRectangles[i] = Rectangle(
                    ClientRectangle.X + 3,
                    ClientRectangle.Y + ClientRectangle.Height - 3
                    - filledRectangleHeight,
                    ClientRectangle.Width - 6,
                    filledRectangleHeight);
            }
        }

        // Handle the timer tick; draw each progressively larger rectangle.
    private:
        void progressTimer_Tick(Object^ myObject, EventArgs^ e)
        {
            if (ticks < NumberChunks)
            {
                Graphics^ g = this->CreateGraphics();
                ProgressBarRenderer::DrawVerticalChunks(g,
                    progressBarRectangles[ticks]);
                ticks++;
            }
            else
            {
                progressTimer->Enabled = false;
            }
        }

        // Start the progress bar.
    public:
        void Start()
        {
            if (ProgressBarRenderer::IsSupported)
            {
                progressTimer->Start();
            }
            else
            {
                MessageBox::Show("VerticalScrollBar requires visual styles");
            }
        }
    };

    public ref class Form1 : public Form
    {
    private:
        VerticalProgressBar^ bar1;
        Button^ button1;

    public:
        Form1() : Form()
        {
            this->Size = System::Drawing::Size(500, 500);
            bar1 = gcnew VerticalProgressBar();
            bar1->NumberChunks = 30;
            button1 = gcnew Button();
            button1->Location = Point(150, 10);
            button1->Size = System::Drawing::Size(150, 30);
            button1->Text = "Start VerticalProgressBar";
            button1->Click += gcnew EventHandler(this, &Form1::button1_Click);
            Controls->AddRange(gcnew array<Control^> { button1, bar1 });
        }

        // Start the VerticalProgressBar.
    private:
        void button1_Click(Object^ sender, EventArgs^ e)
        {
            bar1->Start();
        }
    };
}


[STAThread]
int main()
{
    // The call to EnableVisualStyles below does not affect
    // whether ProgressBarRenderer.IsSupported is true; as
    // long as visual styles are enabled by the operating system,
    // IsSupported is true.
    Application::EnableVisualStyles();
    Application::Run(gcnew ProgressBarRendererSample::Form1());
}

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;

namespace ProgressBarRendererSample
{
    public class Form1 : Form
    {
        private VerticalProgressBar bar1 = new VerticalProgressBar();
        private Button button1 = new Button();

        public Form1()
            : base()
        {
            this.Size = new Size(500, 500);
            bar1.NumberChunks = 30;
            button1.Location = new Point(150, 10);
            button1.Size = new Size(150, 30);
            button1.Text = "Start VerticalProgressBar";
            button1.Click += new EventHandler(button1_Click);
            Controls.AddRange(new Control[] { button1, bar1 });
        }

        [STAThread]
        public static void Main()
        {
            // The call to EnableVisualStyles below does not affect
            // whether ProgressBarRenderer.IsSupported is true; as 
            // long as visual styles are enabled by the operating system, 
            // IsSupported is true.
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }

        // Start the VerticalProgressBar.
        private void button1_Click(object sender, EventArgs e)
        {
            bar1.Start();
        }
    }

    public class VerticalProgressBar : Control
    {
        private int numberChunksValue;
        private int ticks;
        private Timer progressTimer = new Timer();
        private Rectangle[] progressBarRectangles;

        public VerticalProgressBar()
            : base()
        {
            this.Location = new Point(10, 10);
            this.Width = 50;

            // The progress bar will update every second.
            progressTimer.Interval = 1000;
            progressTimer.Tick += new EventHandler(progressTimer_Tick);

            // This property also calls SetupProgressBar to initialize 
            // the progress bar rectangles if styles are enabled.
            NumberChunks = 20;

            // Set the default height if visual styles are not enabled.
            if (!ProgressBarRenderer.IsSupported)
            {
                this.Height = 100;
            }
        }

        // Specify the number of progress bar chunks to base the height on.
        public int NumberChunks
        {
            get
            {
                return numberChunksValue;
            }

            set
            {
                if (value <= 50 && value > 0)
                {
                    numberChunksValue = value;
                }
                else
                {
                    MessageBox.Show("Number of chunks must be between " +
                        "0 and 50; defaulting to 10");
                    numberChunksValue = 10;
                }

                // Recalculate the progress bar size, if visual styles 
                // are active.
                if (ProgressBarRenderer.IsSupported)
                {
                    SetupProgressBar();
                }
            }
        }

        // Draw the progress bar in its normal state.
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            if (ProgressBarRenderer.IsSupported)
            {
                ProgressBarRenderer.DrawVerticalBar(e.Graphics,
                    ClientRectangle);
                this.Parent.Text = "VerticalProgressBar Enabled";
            }
            else
            {
                this.Parent.Text = "VerticalProgressBar Disabled";
            }
        }

        // Initialize the rectangles used to paint the states of the 
        // progress bar.
        private void SetupProgressBar()
        {
            if (!ProgressBarRenderer.IsSupported)
            {
                return;
            }

            // Determine the size of the progress bar frame.
            this.Size = new Size(ClientRectangle.Width,
                (NumberChunks) * (ProgressBarRenderer.ChunkThickness +
                (2 * ProgressBarRenderer.ChunkSpaceThickness)) + 6);

            // Initialize the rectangles to draw each step of the 
            // progress bar.
            progressBarRectangles = new Rectangle[NumberChunks];

            for (int i = 0; i < NumberChunks; i++)
            {
                // Use the thickness defined by the current visual style 
                // to calculate the height of each rectangle. The size 
                // adjustments ensure that the chunks do not paint over 
                // the frame.

                int filledRectangleHeight =
                    ((i + 1) * (ProgressBarRenderer.ChunkThickness +
                    (2 * ProgressBarRenderer.ChunkSpaceThickness)));

                progressBarRectangles[i] = new Rectangle(
                    ClientRectangle.X + 3,
                    ClientRectangle.Y + ClientRectangle.Height - 3
                    - filledRectangleHeight,
                    ClientRectangle.Width - 6,
                    filledRectangleHeight);
            }
        }

        // Handle the timer tick; draw each progressively larger rectangle.
        private void progressTimer_Tick(Object myObject, EventArgs e)
        {
            if (ticks < NumberChunks)
            {
                using (Graphics g = this.CreateGraphics())
                {
                    ProgressBarRenderer.DrawVerticalChunks(g,
                        progressBarRectangles[ticks]);
                    ticks++;
                }
            }
            else
            {
                progressTimer.Enabled = false;
            }
        }

        // Start the progress bar.
        public void Start()
        {
            if (ProgressBarRenderer.IsSupported)
            {
                progressTimer.Start();
            }
            else
            {
                MessageBox.Show("VerticalScrollBar requires visual styles");
            }
        }
    }
}

Imports System.Drawing
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles



Public Class Form1
    Inherits Form
    Private bar1 As New VerticalProgressBar()
    Private button1 As New Button()
    
    
    Public Sub New() 
        Me.Size = New Size(500, 500)
        bar1.NumberChunks = 30
        button1.Location = New Point(150, 10)
        button1.Size = New Size(150, 30)
        button1.Text = "Start VerticalProgressBar"
        AddHandler button1.Click, AddressOf button1_Click
        Controls.AddRange(New Control() {button1, bar1})
    
    End Sub
    
    
    <STAThread()>  _
    Public Shared Sub Main() 
        ' The call to EnableVisualStyles below does not affect
        ' whether ProgressBarRenderer.IsSupported is true; as 
        ' long as visual styles are enabled by the operating system, 
        ' IsSupported is true.
        Application.EnableVisualStyles()
        Application.Run(New Form1())
    
    End Sub
    
    
    ' Start the VerticalProgressBar.
    Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) 
        bar1.Start()
    
    End Sub
End Class


Public Class VerticalProgressBar
    Inherits Control
    Private numberChunksValue As Integer
    Private ticks As Integer
    Private progressTimer As New Timer()
    Private progressBarRectangles() As Rectangle
    
    
    Public Sub New() 
        Me.Location = New Point(10, 10)
        Me.Width = 50
        
        ' The progress bar will update every second.
        progressTimer.Interval = 1000
        AddHandler progressTimer.Tick, AddressOf progressTimer_Tick
        
        ' This property also calls SetupProgressBar to initialize 
        ' the progress bar rectangles if styles are enabled.
        NumberChunks = 20
        
        ' Set the default height if visual styles are not enabled.
        If Not ProgressBarRenderer.IsSupported Then
            Me.Height = 100
        End If
    
    End Sub
    
    ' Specify the number of progress bar chunks to base the height on.
    
    Public Property NumberChunks() As Integer 
        Get
            Return numberChunksValue
        End Get
        
        Set
            If value <= 50 AndAlso value > 0 Then
                numberChunksValue = value
            Else
                MessageBox.Show("Number of chunks must be between " + "0 and 50; defaulting to 10")
                numberChunksValue = 10
            End If
            
            ' Recalculate the progress bar size, if visual styles 
            ' are active.
            If ProgressBarRenderer.IsSupported Then
                SetupProgressBar()
            End If
        End Set
    End Property
    
    
    ' Draw the progress bar in its normal state.
    Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) 
        MyBase.OnPaint(e)
        
        If ProgressBarRenderer.IsSupported Then
            ProgressBarRenderer.DrawVerticalBar(e.Graphics, ClientRectangle)
            Me.Parent.Text = "VerticalProgressBar Enabled"
        Else
            Me.Parent.Text = "VerticalProgressBar Disabled"
        End If
    
    End Sub
    
    ' Initialize the rectangles used to paint the states of the 
    ' progress bar.
    Private Sub SetupProgressBar() 
        If Not ProgressBarRenderer.IsSupported Then
            Return
        End If
        
        ' Determine the size of the progress bar frame.
        Me.Size = New Size(ClientRectangle.Width, NumberChunks *(ProgressBarRenderer.ChunkThickness + 2 * ProgressBarRenderer.ChunkSpaceThickness) + 6)
        
        ' Initialize the rectangles to draw each step of the 
        ' progress bar.
        progressBarRectangles = New Rectangle(NumberChunks) {}
        
        Dim i As Integer
        For i = 0 To NumberChunks
            ' Use the thickness defined by the current visual style 
            ' to calculate the height of each rectangle. The size 
            ' adjustments ensure that the chunks do not paint over 
            ' the frame.
            Dim filledRectangleHeight As Integer = (i + 1)  _
        *(ProgressBarRenderer.ChunkThickness + 2 * ProgressBarRenderer.ChunkSpaceThickness)
            
            progressBarRectangles(i) = New Rectangle(ClientRectangle.X + 3, _
                ClientRectangle.Y + ClientRectangle.Height - 3 - filledRectangleHeight, _
                ClientRectangle.Width - 6, filledRectangleHeight)
        Next i
    
    End Sub
    
    ' Handle the timer tick; draw each progressively larger rectangle.
    Private Sub progressTimer_Tick(ByVal myObject As [Object], ByVal e As EventArgs) 
        If ticks < NumberChunks Then
            Dim g As Graphics = Me.CreateGraphics()
            Try
                ProgressBarRenderer.DrawVerticalChunks(g, progressBarRectangles(ticks))
                ticks += 1
            Finally
                g.Dispose()
            End Try
        Else
            progressTimer.Enabled = False
        End If
    
    End Sub
    
    ' Start the progress bar.
    Public Sub Start() 
        If ProgressBarRenderer.IsSupported Then
            progressTimer.Start()
        Else
            MessageBox.Show("VerticalScrollBar requires visual styles")
        End If
    
    End Sub
End Class

설명

합니다 ProgressBarRenderer 클래스의 집합을 제공 static 운영 체제의 현재 비주얼 스타일을 사용 하 여 진행률 표시줄 컨트롤을 렌더링 하는 데 사용할 수 있는 방법입니다. 컨트롤 렌더링이란 컨트롤의 사용자 인터페이스를 그리는 것을 말합니다. 현재 비주얼 스타일의 모양이 있어야 하는 사용자 지정 컨트롤을 그리는 경우에 유용 합니다. 진행률 표시줄을 그리려면 사용를 DrawHorizontalBar 또는 DrawVerticalBar 빈 표시줄 및 사용 하 여 메서드를 DrawHorizontalChunks 또는 DrawVerticalChunks 표시줄에 입력 하는 요소를 그리는 방법입니다.

운영 체제에서 비주얼 스타일을 사용 하 고 애플리케이션 창의 클라이언트 영역에 비주얼 스타일을 적용 하는 경우이 클래스의 메서드는 현재 비주얼 스타일을 사용 하 여 진행률 표시줄을 그립니다. 이 클래스의 속성과 메서드를 throw 하는 고, 그렇지는 InvalidOperationException합니다. 이 클래스의 멤버를 사용할 수 있는지 여부를 확인 하려면 값을 확인할 수 있습니다는 IsSupported 속성입니다.

이 클래스의 함수를 래핑하는 System.Windows.Forms.VisualStyles.VisualStyleRenderer 에서 노출 한 요소 중 하나에 설정 된를 System.Windows.Forms.VisualStyles.VisualStyleElement.ProgressBar.Bar, System.Windows.Forms.VisualStyles.VisualStyleElement.ProgressBar.BarVertical, System.Windows.Forms.VisualStyles.VisualStyleElement.ProgressBar.Chunk, 및 System.Windows.Forms.VisualStyles.VisualStyleElement.ProgressBar.ChunkVertical 클래스. 자세한 내용은 시각적 스타일을 사용하여 컨트롤 렌더링을 참조하세요.

속성

ChunkSpaceThickness	진행률 표시줄의 각 내부 조각 사이에 있는 공간의 너비(픽셀)를 가져옵니다.
ChunkThickness	진행률 표시줄의 단일 내부 조각 너비(픽셀)를 가져옵니다.
IsSupported	비주얼 스타일을 사용하여 진행률 표시줄 컨트롤을 그리는 데 ProgressBarRenderer 클래스를 사용할 수 있는지 여부를 나타내는 값을 가져옵니다.

메서드

DrawHorizontalBar(Graphics, Rectangle)	가로로 채우는 빈 진행률 표시줄 컨트롤을 그립니다.
DrawHorizontalChunks(Graphics, Rectangle)	가로 진행률 표시줄을 채우는 일련의 진행률 표시줄 조각을 그립니다.
DrawVerticalBar(Graphics, Rectangle)	세로로 채우는 빈 진행률 표시줄 컨트롤을 그립니다.
DrawVerticalChunks(Graphics, Rectangle)	세로 진행률 표시줄을 채우는 일련의 진행률 표시줄 조각을 그립니다.

추가 정보

• VisualStyleRenderer
• VisualStyleElement