StringFormat.SetMeasurableCharacterRanges(CharacterRange[]) Yöntem

Tanım

Ad Alanı:

System.Drawing

Bütünleştirilmiş Kod:

System.Drawing.Common.dll

Paket:

System.Drawing.Common v8.0.0

Kaynak:

StringFormat.cs

yöntemine CharacterRange yapılan çağrıyla ölçülen karakter aralıklarını temsil eden yapı dizisini MeasureCharacterRanges(String, Font, RectangleF, StringFormat) belirtir.

public:
 void SetMeasurableCharacterRanges(cli::array <System::Drawing::CharacterRange> ^ ranges);

public void SetMeasurableCharacterRanges (System.Drawing.CharacterRange[] ranges);

member this.SetMeasurableCharacterRanges : System.Drawing.CharacterRange[] -> unit

Public Sub SetMeasurableCharacterRanges (ranges As CharacterRange())

Parametreler

ranges

CharacterRange[]

yöntemine CharacterRange yapılan çağrıyla MeasureCharacterRanges(String, Font, RectangleF, StringFormat) ölçülen karakter aralıklarını belirten yapı dizisi.

Özel durumlar

OverflowException

32'den fazla karakter aralığı ayarlanır.

Örnekler

Aşağıdaki örnek, Windows Forms ile kullanılmak üzere tasarlanmıştır ve olay işleyicisinin Paint bir parametresi olan gerektirir.PaintEventArgse Kod aşağıdaki eylemleri gerçekleştirir:

• öğesinin karakter aralıklarını StringFormatayarlar.

• Belirli bir dize ve düzen dikdörtgeni için karakter aralıklarını ölçer.

• Dizeyi ve düzen dikdörtgenini çizer.

• Bölgeleri boyar. Her Region biri, bir karakter aralığı tarafından kullanılan bir alanı belirtir. Bölgelerdeki değerler, karakter aralıkları yöntemiyle MeasureCharacterRanges ölçüldüklerinde ayarlanır.

• İlk dört adımı yineler, ancak her karakter aralığının ölçümünde sondaki boşlukları içerir.

• her karakter aralığının StringFormat ölçümüne sondaki boşlukların dahil edilmemesi için öğesinin biçim bayraklarını temizler.

• İlk dört adımı yineler, ancak düzen dikdörtgeninin karakter aralıklarının ölçümlerini etkilediğini göstermek için farklı bir düzen dikdörtgeni kullanır. Yazı tipinin boyutu ölçümü de etkiler.

void SetMeasCharRangesExample( PaintEventArgs^ e )
{
   Graphics^ g = e->Graphics;
   SolidBrush^ redBrush = gcnew SolidBrush( Color::FromArgb( 50, 255, 0, 0 ) );

   // Layout rectangles, font, and string format used for displaying string.
   Rectangle layoutRectA = Rectangle(20,20,165,80);
   Rectangle layoutRectB = Rectangle(20,110,165,80);
   Rectangle layoutRectC = Rectangle(20,200,240,80);
   System::Drawing::Font^ tnrFont = gcnew System::Drawing::Font( "Times New Roman",16 );
   StringFormat^ strFormat = gcnew StringFormat;

   // Ranges of character positions within a string.
   array<CharacterRange>^ charRanges = {CharacterRange(3,5),CharacterRange(15,2),CharacterRange(30,15)};

   // Each region specifies the area occupied by the characters within a
   // range of positions. the values are obtained by using a method that
   // measures the character ranges.
   array<System::Drawing::Region^>^charRegions = gcnew array<System::Drawing::Region^>(charRanges->Length);

   // String to be displayed.
   String^ str = "The quick, brown fox easily jumps over the lazy dog.";

   // Set the char ranges for the string format.
   strFormat->SetMeasurableCharacterRanges( charRanges );

   // loop counter (unsigned 8-bit integer)
   Byte i;

   // Measure the char ranges for a given string and layout rectangle. Each
   // area occupied by the characters in a range is stored as a region. Then
   // draw the string and layout rectangle, and paint the regions.
   charRegions = g->MeasureCharacterRanges( str, tnrFont, layoutRectA, strFormat );
   g->DrawString( str, tnrFont, Brushes::Blue, layoutRectA, strFormat );
   g->DrawRectangle( Pens::Black, layoutRectA );

   // Paint the regions.
   for ( i = 0; i < charRegions->Length; i++ )
      g->FillRegion( redBrush, charRegions[ i ] );

   // Repeat the above steps, but include trailing spaces in the char
   // range measurement by setting the appropriate string format flag.
   strFormat->FormatFlags = StringFormatFlags::MeasureTrailingSpaces;
   charRegions = g->MeasureCharacterRanges( str, tnrFont, layoutRectB, strFormat );
   g->DrawString( str, tnrFont, Brushes::Blue, layoutRectB, strFormat );
   g->DrawRectangle( Pens::Black, layoutRectB );
   for ( i = 0; i < charRegions->Length; i++ )
      g->FillRegion( redBrush, charRegions[ i ] );

   // Clear all the format flags.
   strFormat->FormatFlags = StringFormatFlags(0);

   // Repeat the steps, but use a different layout rectangle. the dimensions
   // of the layout rectangle and the size of the font both affect the
   // character range measurement.
   charRegions = g->MeasureCharacterRanges( str, tnrFont, layoutRectC, strFormat );
   g->DrawString( str, tnrFont, Brushes::Blue, layoutRectC, strFormat );
   g->DrawRectangle( Pens::Black, layoutRectC );

   // Paint the regions.
   for ( i = 0; i < charRegions->Length; i++ )
      g->FillRegion( redBrush, charRegions[ i ] );
}

public void SetMeasCharRangesExample(PaintEventArgs e)
{
    Graphics     g = e.Graphics;
    SolidBrush   redBrush = new SolidBrush(Color.FromArgb(50, 255, 0, 0));
             
    // Layout rectangles, font, and string format used for displaying string.
    Rectangle    layoutRectA = new Rectangle(20, 20, 165, 80);
    Rectangle    layoutRectB = new Rectangle(20, 110, 165, 80);
    Rectangle    layoutRectC = new Rectangle(20, 200, 240, 80);
    Font         tnrFont = new Font("Times New Roman", 16);
    StringFormat strFormat = new StringFormat();
             
    // Ranges of character positions within a string.
    CharacterRange[] charRanges = { new CharacterRange(3, 5),
        new CharacterRange(15, 2), new CharacterRange(30, 15)};
             
    // Each region specifies the area occupied by the characters within a
    // range of positions. the values are obtained by using a method that
    // measures the character ranges.
    Region[]     charRegions = new Region[charRanges.Length];
             
    // String to be displayed.
    string  str =
        "The quick, brown fox easily jumps over the lazy dog.";
             
    // Set the char ranges for the string format.
    strFormat.SetMeasurableCharacterRanges(charRanges);
   
    // loop counter (unsigned 8-bit integer)
    byte  i;    
   
    // Measure the char ranges for a given string and layout rectangle. Each
    // area occupied by the characters in a range is stored as a region. Then
    // draw the string and layout rectangle, and paint the regions.
    charRegions = g.MeasureCharacterRanges(str, tnrFont,
        layoutRectA, strFormat);
   g.DrawString(str, tnrFont, Brushes.Blue, layoutRectA, strFormat);
    g.DrawRectangle(Pens.Black, layoutRectA);
     
    // Paint the regions.
    for (i = 0; i < charRegions.Length; i++)
        g.FillRegion(redBrush, charRegions[i]);   

    // Repeat the above steps, but include trailing spaces in the char
    // range measurement by setting the appropriate string format flag.
    strFormat.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
    charRegions = g.MeasureCharacterRanges(str, tnrFont,
        layoutRectB, strFormat);
    g.DrawString(str, tnrFont, Brushes.Blue, layoutRectB, strFormat);
    g.DrawRectangle(Pens.Black, layoutRectB);

    for (i = 0; i < charRegions.Length; i++)
        g.FillRegion(redBrush, charRegions[i]);   
   
    // Clear all the format flags.
    strFormat.FormatFlags = 0;                   
 
    // Repeat the steps, but use a different layout rectangle. the dimensions
    // of the layout rectangle and the size of the font both affect the
    // character range measurement.
    charRegions = g.MeasureCharacterRanges(str, tnrFont,
        layoutRectC, strFormat);
    g.DrawString(str, tnrFont, Brushes.Blue, layoutRectC, strFormat);
    g.DrawRectangle(Pens.Black, layoutRectC);
    
    // Paint the regions.
    for (i = 0; i < charRegions.Length; i++)
        g.FillRegion(redBrush, charRegions[i]);   
}

Public Sub SetMeasCharRangesExample(ByVal e As PaintEventArgs)
    Dim g As Graphics = e.Graphics
    Dim redBrush As New SolidBrush(Color.FromArgb(50, 255, 0, 0))

    ' Layout rectangles, font, and string format used for
    ' displaying string.
    Dim layoutRectA As New Rectangle(20, 20, 165, 80)
    Dim layoutRectB As New Rectangle(20, 110, 165, 80)
    Dim layoutRectC As New Rectangle(20, 200, 240, 80)
    Dim tnrFont As New Font("Times New Roman", 16)
    Dim strFormat As New StringFormat

    ' Ranges of character positions within a string.
    Dim charRanges As CharacterRange() = {New CharacterRange(3, 5), _
    New CharacterRange(15, 2), New CharacterRange(30, 15)}

    ' Each region specifies the area occupied by the characters within
    ' a range of positions. The values are obtained by using a method
    ' that measures the character ranges.
    Dim charRegions(charRanges.Length) As [Region]

    ' String to be displayed.
    Dim str As String = _
    "The quick, brown fox easily jumps over the lazy dog."

    ' Set the char ranges for the string format.
    strFormat.SetMeasurableCharacterRanges(charRanges)

    ' Loop counter (unsigned 8-bit integer).
    Dim i As Byte


    ' Measure the char ranges for a given string and layout rectangle.
    ' Each area occupied by the characters in a range is stored as a
    ' region. then draw the string and layout rectangle and paint the
    ' regions.
    charRegions = g.MeasureCharacterRanges(str, tnrFont, _
    RectangleF.op_Implicit(layoutRectA), strFormat)
    g.DrawString(str, tnrFont, Brushes.Blue, _
    RectangleF.op_Implicit(layoutRectA), strFormat)
    g.DrawRectangle(Pens.Black, layoutRectA)

    ' Paint the regions.
    For i = 0 To charRegions.Length - 1
        g.FillRegion(redBrush, charRegions(i))
    Next i

    ' Repeat the above steps, but include trailing spaces in the char
    ' range measurement by setting the appropriate string format flag.
    strFormat.FormatFlags = StringFormatFlags.MeasureTrailingSpaces
    charRegions = g.MeasureCharacterRanges(str, tnrFont, _
    RectangleF.op_Implicit(layoutRectB), strFormat)
    g.DrawString(str, tnrFont, Brushes.Blue, _
    RectangleF.op_Implicit(layoutRectB), strFormat)
    g.DrawRectangle(Pens.Black, layoutRectB)

    ' Paint the regions.
    For i = 0 To charRegions.Length - 1
        g.FillRegion(redBrush, charRegions(i))
    Next i

    ' Clear all the format flags.
    strFormat.FormatFlags = 0

    ' Repeat the steps, but use a different layout rectangle. The
    ' dimensions of the layout rectangle and the size of the font both
    ' affect the character range measurement.
    charRegions = g.MeasureCharacterRanges(str, tnrFont, _
    RectangleF.op_Implicit(layoutRectC), strFormat)
    g.DrawString(str, tnrFont, Brushes.Blue, _
    RectangleF.op_Implicit(layoutRectC), strFormat)
    g.DrawRectangle(Pens.Black, layoutRectC)

    ' Paint the regions.
    For i = 0 To charRegions.Length - 1
        g.FillRegion(redBrush, charRegions(i))
    Next i
End Sub

Açıklamalar

32'den fazla karakter aralığı ayarlanmasına izin verilmez ve bir System.OverflowExceptionöğesine neden olur.