internal static void DrawClippedTextRun(TextRun run, Win32DCSafeHandle hdc, FontCache fontCache, int x, int baselineY, uint fontColorOverride, Rectangle clipRect, Underline underline)
{
uint crColor = 0u;
IntPtr intPtr = IntPtr.Zero;
try
{
underline?.Draw(hdc, (int)((double)run.UnderlineHeight * 0.085), fontColorOverride);
RECT structure = default(RECT);
structure.left = clipRect.Left;
structure.right = clipRect.Right;
structure.top = clipRect.Top;
structure.bottom = clipRect.Bottom;
crColor = Win32.SetTextColor(hdc, fontColorOverride);
GlyphData glyphData = run.GetGlyphData(hdc, fontCache);
GlyphShapeData glyphScriptShapeData = glyphData.GlyphScriptShapeData;
CachedFont cachedFont = run.GetCachedFont(hdc, fontCache);
fontCache.SelectFontObject(hdc, cachedFont.Hfont);
intPtr = Marshal.AllocHGlobal(Marshal.SizeOf(structure));
Marshal.StructureToPtr(structure, intPtr, fDeleteOld: false);
int num = Win32.ScriptTextOut(hdc, ref cachedFont.ScriptCache, x, baselineY, 4u, intPtr, ref run.SCRIPT_ANALYSIS, IntPtr.Zero, 0, glyphScriptShapeData.Glyphs, glyphScriptShapeData.GlyphCount, glyphData.Advances, null, glyphData.GOffsets);
if (Win32.Failed(num))
{
Marshal.ThrowExceptionForHR(num);
}
}
finally
{
if (intPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(intPtr);
}
crColor = Win32.SetTextColor(hdc, crColor);
}
}
internal static void ExtDrawTextRun(TextRun run, Win32DCSafeHandle hdc, FontCache fontCache, int x, int baselineY, Underline underline)
{
uint crColor = 0u;
try
{
uint colorInt = run.ColorInt;
underline?.Draw(hdc, (int)((double)run.UnderlineHeight * 0.085), colorInt);
crColor = Win32.SetTextColor(hdc, colorInt);
CachedFont cachedFont = run.GetCachedFont(hdc, fontCache);
fontCache.SelectFontObject(hdc, cachedFont.Hfont);
int[] lpDx = null;
uint fuOptions = 0u;
if (run.ScriptAnalysis.fRTL == 1)
{
fuOptions = 128u;
}
if (!Win32.ExtTextOut(hdc, x, baselineY, fuOptions, IntPtr.Zero, run.Text, (uint)run.Text.Length, lpDx))
{
Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
}
}
finally
{
crColor = Win32.SetTextColor(hdc, crColor);
}
}
private void TextScriptPlace(Win32DCSafeHandle hdc, bool fontSelected, FontCache fontCache)
{
int num = 0;
GlyphShapeData glyphScriptShapeData = m_cachedGlyphData.GlyphScriptShapeData;
if (fontSelected)
{
num = Win32.ScriptPlace(hdc, ref m_cachedFont.ScriptCache, glyphScriptShapeData.Glyphs, glyphScriptShapeData.GlyphCount, glyphScriptShapeData.VisAttrs, ref SCRIPT_ANALYSIS, m_cachedGlyphData.RawAdvances, m_cachedGlyphData.RawGOffsets, ref m_cachedGlyphData.ABC);
}
else
{
num = Win32.ScriptPlace(IntPtr.Zero, ref m_cachedFont.ScriptCache, glyphScriptShapeData.Glyphs, glyphScriptShapeData.GlyphCount, glyphScriptShapeData.VisAttrs, ref SCRIPT_ANALYSIS, m_cachedGlyphData.RawAdvances, m_cachedGlyphData.RawGOffsets, ref m_cachedGlyphData.ABC);
if (num == -2147483638)
{
fontCache.SelectFontObject(hdc, m_cachedFont.Hfont);
num = Win32.ScriptPlace(hdc, ref m_cachedFont.ScriptCache, glyphScriptShapeData.Glyphs, glyphScriptShapeData.GlyphCount, glyphScriptShapeData.VisAttrs, ref SCRIPT_ANALYSIS, m_cachedGlyphData.RawAdvances, m_cachedGlyphData.RawGOffsets, ref m_cachedGlyphData.ABC);
}
}
if (Win32.Failed(num))
{
Marshal.ThrowExceptionForHR(num);
}
if (m_cachedGlyphData.ABC.Width > 0 && m_text.Length == 1 && TextBox.IsWhitespaceControlChar(m_text[0]))
{
m_cachedGlyphData.ABC.SetToZeroWidth();
}
}
private void Initialize(Win32DCSafeHandle hdc, FontCache fontCache)
{
fontCache.SelectFontObject(hdc, m_hfont);
Win32.GetTextMetrics(hdc, out m_textMetric);
if (ScaleFactor != 1f)
{
m_textMetric.tmHeight = Scale(m_textMetric.tmHeight);
m_textMetric.tmAscent = Scale(m_textMetric.tmAscent);
m_textMetric.tmDescent = Scale(m_textMetric.tmDescent);
m_textMetric.tminternalLeading = Scale(m_textMetric.tminternalLeading);
}
m_initialized = true;
}
internal static void DrawTextRun(TextRun run, Win32DCSafeHandle hdc, FontCache fontCache, int x, int baselineY, Underline underline)
{
uint crColor = 0u;
try
{
uint colorInt = run.ColorInt;
underline?.Draw(hdc, (int)((double)run.UnderlineHeight * 0.085), colorInt);
crColor = Win32.SetTextColor(hdc, colorInt);
GlyphData glyphData = run.GetGlyphData(hdc, fontCache);
GlyphShapeData glyphScriptShapeData = glyphData.GlyphScriptShapeData;
CachedFont cachedFont = run.GetCachedFont(hdc, fontCache);
fontCache.SelectFontObject(hdc, cachedFont.Hfont);
int num = Win32.ScriptTextOut(hdc, ref cachedFont.ScriptCache, x, baselineY, 4u, IntPtr.Zero, ref run.SCRIPT_ANALYSIS, IntPtr.Zero, 0, glyphScriptShapeData.Glyphs, glyphScriptShapeData.GlyphCount, glyphData.Advances, null, glyphData.GOffsets);
if (Win32.Failed(num))
{
Marshal.ThrowExceptionForHR(num);
}
}
finally
{
crColor = Win32.SetTextColor(hdc, crColor);
}
}
internal void ShapeAndPlace(Win32DCSafeHandle hdc, FontCache fontCache)
{
bool verticalFont = false;
if (fontCache.AllowVerticalFont)
{
verticalFont = HasEastAsianChars;
}
if (m_cachedFont == null)
{
m_cachedFont = fontCache.GetFont(m_textRunProps, GetCharset(), verticalFont);
FallbackFont = false;
}
CachedFont cachedFont = m_cachedFont;
bool flag = false;
bool flag2 = false;
string text = m_text;
int num = Convert.ToInt32((double)text.Length * 1.5 + 16.0);
m_cachedGlyphData = new GlyphData(num, text.Length);
GlyphShapeData glyphScriptShapeData = m_cachedGlyphData.GlyphScriptShapeData;
int num2 = Win32.ScriptShape(IntPtr.Zero, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
if (num2 == -2147483638)
{
flag = true;
fontCache.SelectFontObject(hdc, m_cachedFont.Hfont);
num2 = Win32.ScriptShape(hdc, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
}
if (num2 == -2147024882)
{
num = text.Length * 3;
m_cachedGlyphData = new GlyphData(num, text.Length);
glyphScriptShapeData = m_cachedGlyphData.GlyphScriptShapeData;
num2 = Win32.ScriptShape(hdc, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
}
if (!FallbackFont)
{
if (num2 == -2147220992)
{
int num3 = 0;
m_cachedFont = fontCache.GetFallbackFont(script: (!m_itemizedScriptId.HasValue) ? ScriptAnalysis.eScript : m_itemizedScriptId.Value, textRunProps: m_textRunProps, charset: GetCharset(), verticalFont: verticalFont);
fontCache.SelectFontObject(hdc, m_cachedFont.Hfont);
flag = true;
flag2 = true;
num2 = Win32.ScriptShape(hdc, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
}
else if (HasEastAsianChars)
{
if (!flag)
{
fontCache.SelectFontObject(hdc, m_cachedFont.Hfont);
flag = true;
}
Win32.SCRIPT_FONTPROPERTIES sfp = default(Win32.SCRIPT_FONTPROPERTIES);
sfp.cBytes = 16;
num2 = Win32.ScriptGetFontProperties(hdc, ref m_cachedFont.ScriptCache, ref sfp);
short wgDefault = sfp.wgDefault;
int num4 = 0;
num4 = ((!m_itemizedScriptId.HasValue) ? ScriptAnalysis.eScript : m_itemizedScriptId.Value);
for (int i = 0; i < glyphScriptShapeData.GlyphCount; i++)
{
if (glyphScriptShapeData.Glyphs[i] == wgDefault)
{
m_cachedFont = fontCache.GetFallbackFont(m_textRunProps, GetCharset(), num4, verticalFont);
m_cachedFont.DefaultGlyph = wgDefault;
fontCache.SelectFontObject(hdc, m_cachedFont.Hfont);
flag = true;
flag2 = true;
num2 = Win32.ScriptShape(hdc, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
break;
}
}
}
}
if (num2 == -2147220992)
{
m_cachedFont = cachedFont;
if (!flag || flag2)
{
Win32.SelectObject(hdc, m_cachedFont.Hfont).SetHandleAsInvalid();
flag = true;
}
flag2 = false;
SetUndefinedScript();
num2 = Win32.ScriptShape(hdc, ref m_cachedFont.ScriptCache, text, text.Length, num, ref SCRIPT_ANALYSIS, glyphScriptShapeData.Glyphs, glyphScriptShapeData.Clusters, glyphScriptShapeData.VisAttrs, ref glyphScriptShapeData.GlyphCount);
}
if (Win32.Failed(num2))
{
Marshal.ThrowExceptionForHR(num2);
}
if (flag2)
{
FallbackFont = true;
}
m_cachedGlyphData.TrimToGlyphCount();
m_cachedGlyphData.ScaleFactor = m_cachedFont.ScaleFactor;
TextScriptPlace(hdc, flag, fontCache);
}