DotNet 4.8.1 build of DotNetBar
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244
PROMS/DotNetBar Source Code/TreeGX/TextDrawing.cs
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244
PROMS/DotNetBar Source Code/TreeGX/TextDrawing.cs
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using System;
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using System.Text;
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using System.Drawing;
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using System.Windows.Forms;
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using System.Drawing.Text;
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#if DOTNETBAR
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namespace DevComponents.DotNetBar
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#else
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namespace DevComponents.Tree
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#endif
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{
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internal class TextDrawing
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{
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static TextDrawing()
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{
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string lc = Application.CurrentCulture.TwoLetterISOLanguageName;
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if (lc == "ja" || lc == "ko" || lc == "zh" || lc == "ar")
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UseGenericDefault = true;
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}
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public static bool TextDrawingEnabled = true;
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public static bool UseTextRenderer = false;
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public static void DrawString(Graphics g, string text, Font font, Color color, int x, int y, eTextFormat format)
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{
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DrawString(g, text, font, color, new Rectangle(x, y, 0, 0), format);
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}
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public static void DrawString(Graphics g, string text, Font font, Color color, Rectangle bounds, eTextFormat format)
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{
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#if FRAMEWORK20
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if (UseTextRenderer && (format & eTextFormat.Vertical) == 0)
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TextRenderer.DrawText(g, text, font, bounds, color, GetTextFormatFlags(format));
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else
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DrawStringLegacy(g, text, font, color, bounds, format);
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#else
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DrawStringLegacy(g, text, font, color, bounds, format);
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#endif
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}
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public static void DrawStringLegacy(Graphics g, string text, Font font, Color color, Rectangle bounds, eTextFormat format)
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{
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if (color.IsEmpty || !TextDrawingEnabled)
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return;
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using (SolidBrush brush = new SolidBrush(color))
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{
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using (StringFormat sf = GetStringFormat(format))
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g.DrawString(text, font, brush, bounds, sf);
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}
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}
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public static Size MeasureString(Graphics g, string text, Font font)
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{
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return MeasureString(g, text, font, Size.Empty, eTextFormat.Default);
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}
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public static Size MeasureString(Graphics g, string text, Font font, int proposedWidth, eTextFormat format)
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{
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return MeasureString(g, text, font, new Size(proposedWidth, 0), format);
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}
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public static Size MeasureString(Graphics g, string text, Font font, int proposedWidth)
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{
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return MeasureString(g, text, font, new Size(proposedWidth, 0), eTextFormat.Default);
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}
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public static Size MeasureString(Graphics g, string text, Font font, Size proposedSize, eTextFormat format)
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{
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#if FRAMEWORK20
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if (UseTextRenderer && (format & eTextFormat.Vertical) == 0)
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{
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format = format & ~(format & eTextFormat.VerticalCenter); // Bug in .NET Framework 2.0
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format = format & ~(format & eTextFormat.Bottom); // Bug in .NET Framework 2.0
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format = format & ~(format & eTextFormat.HorizontalCenter); // Bug in .NET Framework 2.0
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format = format & ~(format & eTextFormat.Right); // Bug in .NET Framework 2.0
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format = format & ~(format & eTextFormat.EndEllipsis); // Bug in .NET Framework 2.0
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return Size.Ceiling(TextRenderer.MeasureText(g, text, font, proposedSize, GetTextFormatFlags(format)));
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}
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using (StringFormat sf = GetStringFormat(format))
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return Size.Ceiling(g.MeasureString(text, font, proposedSize, sf));
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#else
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using (StringFormat sf = GetStringFormat(format))
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return Size.Ceiling(g.MeasureString(text, font, proposedSize, sf));
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#endif
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}
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public static Size MeasureStringLegacy(Graphics g, string text, Font font, Size proposedSize, eTextFormat format)
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{
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using (StringFormat sf = GetStringFormat(format))
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return g.MeasureString(text, font, proposedSize, sf).ToSize();
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}
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public static eTextFormat TranslateHorizontal(StringAlignment align)
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{
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if (align == StringAlignment.Center)
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return eTextFormat.HorizontalCenter;
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else if (align == StringAlignment.Far)
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return eTextFormat.Right;
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return eTextFormat.Default;
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}
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public static eTextFormat TranslateVertical(StringAlignment align)
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{
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if (align == StringAlignment.Center)
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return eTextFormat.VerticalCenter;
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else if (align == StringAlignment.Far)
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return eTextFormat.Bottom;
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return eTextFormat.Default;
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}
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#if FRAMEWORK20
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private static TextFormatFlags GetTextFormatFlags(eTextFormat format)
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{
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format |= eTextFormat.PreserveGraphicsTranslateTransform | eTextFormat.PreserveGraphicsClipping;
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if((format & eTextFormat.SingleLine)==eTextFormat.SingleLine && (format & eTextFormat.WordBreak)==eTextFormat.WordBreak)
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format = format & ~(format & eTextFormat.SingleLine);
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return (TextFormatFlags)format;
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}
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#endif
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internal static bool UseGenericDefault = false;
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public static StringFormat GetStringFormat(eTextFormat format)
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{
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StringFormat sf = new StringFormat(UseGenericDefault ? StringFormat.GenericDefault : StringFormat.GenericTypographic);
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if (format == eTextFormat.Default)
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return sf;
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if ((format & eTextFormat.HorizontalCenter) == eTextFormat.HorizontalCenter)
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sf.Alignment = StringAlignment.Center;
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else if ((format & eTextFormat.Right) == eTextFormat.Right)
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sf.Alignment = StringAlignment.Far;
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if ((format & eTextFormat.VerticalCenter) == eTextFormat.VerticalCenter)
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sf.LineAlignment = StringAlignment.Center;
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else if ((format & eTextFormat.Bottom) == eTextFormat.Bottom)
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sf.LineAlignment = StringAlignment.Far;
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if ((format & eTextFormat.EndEllipsis) == eTextFormat.EndEllipsis)
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sf.Trimming = StringTrimming.EllipsisCharacter;
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else
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sf.Trimming = StringTrimming.Character;
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if ((format & eTextFormat.HidePrefix) == eTextFormat.HidePrefix)
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sf.HotkeyPrefix = HotkeyPrefix.Hide;
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else if ((format & eTextFormat.NoPrefix) == eTextFormat.NoPrefix)
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sf.HotkeyPrefix = HotkeyPrefix.None;
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else
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sf.HotkeyPrefix = HotkeyPrefix.Show;
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if ((format & eTextFormat.WordBreak) == eTextFormat.WordBreak)
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sf.FormatFlags = sf.FormatFlags & ~(sf.FormatFlags & StringFormatFlags.NoWrap);
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else
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sf.FormatFlags |= StringFormatFlags.NoWrap;
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if ((format & eTextFormat.LeftAndRightPadding) == eTextFormat.LeftAndRightPadding)
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sf.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
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if ((format & eTextFormat.RightToLeft) == eTextFormat.RightToLeft)
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sf.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
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if ((format & eTextFormat.Vertical) == eTextFormat.Vertical)
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sf.FormatFlags |= StringFormatFlags.DirectionVertical;
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if ((format & eTextFormat.NoClipping) == eTextFormat.NoClipping)
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sf.FormatFlags |= StringFormatFlags.NoClip;
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return sf;
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}
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#if DOTNETBAR
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public static ThemeTextFormat GetTextFormat(eTextFormat format)
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{
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ThemeTextFormat ttf = ThemeTextFormat.Left;
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if (format == eTextFormat.Default)
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return ttf;
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if ((format & eTextFormat.HorizontalCenter) == eTextFormat.HorizontalCenter)
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ttf |= ThemeTextFormat.Center;
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else if ((format & eTextFormat.Right) == eTextFormat.Right)
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ttf|= ThemeTextFormat.Right;
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if ((format & eTextFormat.VerticalCenter) == eTextFormat.VerticalCenter)
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ttf |= ThemeTextFormat.VCenter;
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else if ((format & eTextFormat.Bottom) == eTextFormat.Bottom)
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ttf |= ThemeTextFormat.Bottom;
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if ((format & eTextFormat.EndEllipsis) == eTextFormat.EndEllipsis)
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ttf |= ThemeTextFormat.EndEllipsis;
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if ((format & eTextFormat.HidePrefix) == eTextFormat.HidePrefix)
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ttf |= ThemeTextFormat.HidePrefix;
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else if ((format & eTextFormat.NoPrefix) == eTextFormat.NoPrefix)
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ttf |= ThemeTextFormat.NoPrefix;
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if ((format & eTextFormat.WordBreak) == eTextFormat.WordBreak)
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ttf |= ThemeTextFormat.WordBreak;
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else
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ttf |= ThemeTextFormat.SingleLine;
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if ((format & eTextFormat.RightToLeft) == eTextFormat.RightToLeft)
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ttf |= ThemeTextFormat.RtlReading;
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if ((format & eTextFormat.NoClipping) == eTextFormat.NoClipping)
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ttf |= ThemeTextFormat.NoClip;
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return ttf;
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}
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#endif
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}
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[Flags]
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public enum eTextFormat
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{
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Bottom = 8,
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Default = 0,
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EndEllipsis = 0x8000,
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ExpandTabs = 0x40,
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ExternalLeading = 0x200,
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GlyphOverhangPadding = 0,
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HidePrefix = 0x100000,
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HorizontalCenter = 1,
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Internal = 0x1000,
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Left = 0,
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LeftAndRightPadding = 0x20000000,
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ModifyString = 0x10000,
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NoClipping = 0x100,
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NoFullWidthCharacterBreak = 0x80000,
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NoPadding = 0x10000000,
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NoPrefix = 0x800,
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PathEllipsis = 0x4000,
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PrefixOnly = 0x200000,
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PreserveGraphicsClipping = 0x1000000,
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PreserveGraphicsTranslateTransform = 0x2000000,
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Right = 2,
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RightToLeft = 0x20000,
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SingleLine = 0x20,
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TextBoxControl = 0x2000,
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Top = 0,
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VerticalCenter = 4,
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WordBreak = 0x10,
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WordEllipsis = 0x40000,
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Vertical = 0x40000000
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}
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}
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