public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) {
string strValue = value as string;
if (strValue != null) {
string text = strValue.Trim();
// Expected string format: "name[, size[, units[, style=style1[, style2[...]]]]]"
// Example using 'vi-VN' culture: "Microsoft Sans Serif, 8,25pt, style=Italic, Bold"
if (text.Length == 0) {
return null;
}
else {
if (culture == null) {
culture = CultureInfo.CurrentCulture;
}
char sep = culture.TextInfo.ListSeparator[0]; // For vi-VN: ','
string name = text; // start with the assumption that only the font name was provided.
string styleStr = null;
string sizeStr = null;
float size = 8.25f;
FontStyle style = FontStyle.Regular;
GraphicsUnit units = GraphicsUnit.Point;
// Get the index of the first separator (would indicate the end of the name in the string).
int nameIndex = text.IndexOf(sep);
if( nameIndex > 0 ){ // some parameters provided in addtion to name.
name = text.Substring(0, nameIndex);
if( nameIndex < text.Length - 1 ){ // other parameters provided.
// Get the style index (if any). The size is a bit problematic because it can be formatted differently
// depending on the culture, we'll parse it last.
int styleIndex = text.IndexOf(styleHdr);
if (styleIndex != -1) { // style found.
styleStr = text.Substring(styleIndex, text.Length - styleIndex);
// Expected style format ~ "style=Italic, Bold"
if (!styleStr.StartsWith(styleHdr)){
throw GetFormatException(text, sep);
}
// Get the mid-substring containing the size information.
sizeStr = text.Substring(nameIndex + 1, styleIndex - nameIndex - 1);
}
else { // no style.
sizeStr = text.Substring(nameIndex + 1, text.Length - nameIndex - 1);
}
// Parse size.
string[] unitTokens = ParseSizeTokens(sizeStr, sep);
if (unitTokens[0] != null) {
try{
size = (float)TypeDescriptor.GetConverter(typeof(float)).ConvertFromString(context, culture, unitTokens[0]);
}
catch{ // Exception from converter is too generic.
throw GetFormatException(text, sep);
}
}
if (unitTokens[1] != null) {
// ParseGraphicsUnits throws an ArgumentException if format is invalid.
units = ParseGraphicsUnits(unitTokens[1]);
}
if (styleStr != null) {
int eqIndex = styleStr.IndexOf("=");
styleStr = styleStr.Substring(eqIndex + 1, styleStr.Length - styleHdr.Length);
string[] styleTokens = styleStr.Split(sep);
for (int tokenCount = 0; tokenCount < styleTokens.Length; tokenCount++) {
string styleText = styleTokens[tokenCount];
styleText = styleText.Trim();
// Note: Enum.Parse will throw InvalidEnumArgumentException if the styleText is not valid but could
// throw other exceptions depending on the string passed.
try{
style |= (FontStyle)Enum.Parse(typeof(FontStyle), styleText, true);
}
catch(Exception ex ){
if( ex is InvalidEnumArgumentException ){
throw;
}
throw GetFormatException(text, sep);
}
// Enum.IsDefined doesn't do what we want on flags enums...
FontStyle validBits = FontStyle.Regular | FontStyle.Bold | FontStyle.Italic | FontStyle.Underline | FontStyle.Strikeout;
if ((style | validBits) != validBits){
throw new InvalidEnumArgumentException("style", (int)style, typeof(FontStyle));
}
}
}
}
}
if (fontNameConverter == null) {
fontNameConverter = new FontNameConverter();
}
// should get cached version from TypeDescriptor
name = (string)(fontNameConverter.ConvertFrom(context, culture, name));
// Name is the only parameter not validated, if it is invalid a default Font will be created.
return new Font(name, size, style, units);
}
}
return base.ConvertFrom(context, culture, value);
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
string strValue = value as string;
if (strValue != null)
{
string text = strValue.Trim();
// Expected string format: "name[, size[, units[, style=style1[, style2[...]]]]]"
// Example using 'vi-VN' culture: "Microsoft Sans Serif, 8,25pt, style=Italic, Bold"
if (text.Length == 0)
{
return(null);
}
else
{
if (culture == null)
{
culture = CultureInfo.CurrentCulture;
}
char sep = culture.TextInfo.ListSeparator[0]; // For vi-VN: ','
string name = text; // start with the assumption that only the font name was provided.
string styleStr = null;
string sizeStr = null;
float size = 8.25f;
FontStyle style = FontStyle.Regular;
GraphicsUnit units = GraphicsUnit.Point;
// Get the index of the first separator (would indicate the end of the name in the string).
int nameIndex = text.IndexOf(sep);
if (nameIndex > 0) // some parameters provided in addtion to name.
{
name = text.Substring(0, nameIndex);
if (nameIndex < text.Length - 1) // other parameters provided.
// Get the style index (if any). The size is a bit problematic because it can be formatted differently
// depending on the culture, we'll parse it last.
{
int styleIndex = text.IndexOf(styleHdr);
if (styleIndex != -1) // style found.
{
styleStr = text.Substring(styleIndex, text.Length - styleIndex);
// Expected style format ~ "style=Italic, Bold"
if (!styleStr.StartsWith(styleHdr))
{
throw GetFormatException(text, sep);
}
// Get the mid-substring containing the size information.
sizeStr = text.Substring(nameIndex + 1, styleIndex - nameIndex - 1);
}
else // no style.
{
sizeStr = text.Substring(nameIndex + 1, text.Length - nameIndex - 1);
}
// Parse size.
string[] unitTokens = ParseSizeTokens(sizeStr, sep);
if (unitTokens[0] != null)
{
try{
size = (float)TypeDescriptor.GetConverter(typeof(float)).ConvertFromString(context, culture, unitTokens[0]);
}
catch { // Exception from converter is too generic.
throw GetFormatException(text, sep);
}
}
if (unitTokens[1] != null)
{
// ParseGraphicsUnits throws an ArgumentException if format is invalid.
units = ParseGraphicsUnits(unitTokens[1]);
}
if (styleStr != null)
{
int eqIndex = styleStr.IndexOf("=");
styleStr = styleStr.Substring(eqIndex + 1, styleStr.Length - styleHdr.Length);
string[] styleTokens = styleStr.Split(sep);
for (int tokenCount = 0; tokenCount < styleTokens.Length; tokenCount++)
{
string styleText = styleTokens[tokenCount];
styleText = styleText.Trim();
// Note: Enum.Parse will throw InvalidEnumArgumentException if the styleText is not valid but could
// throw other exceptions depending on the string passed.
try{
style |= (FontStyle)Enum.Parse(typeof(FontStyle), styleText, true);
}
catch (Exception ex) {
if (ex is InvalidEnumArgumentException)
{
throw;
}
throw GetFormatException(text, sep);
}
// Enum.IsDefined doesn't do what we want on flags enums...
FontStyle validBits = FontStyle.Regular | FontStyle.Bold | FontStyle.Italic | FontStyle.Underline | FontStyle.Strikeout;
if ((style | validBits) != validBits)
{
throw new InvalidEnumArgumentException("style", (int)style, typeof(FontStyle));
}
}
}
}
}
if (fontNameConverter == null)
{
fontNameConverter = new FontNameConverter();
}
// should get cached version from TypeDescriptor
name = (string)(fontNameConverter.ConvertFrom(context, culture, name));
// Name is the only parameter not validated, if it is invalid a default Font will be created.
return(new Font(name, size, style, units));
}
}
return(base.ConvertFrom(context, culture, value));
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
string str = value as string;
if (str == null)
{
return(base.ConvertFrom(context, culture, value));
}
string text = str.Trim();
if (text.Length == 0)
{
return(null);
}
if (culture == null)
{
culture = CultureInfo.CurrentCulture;
}
char ch = culture.TextInfo.ListSeparator[0];
string str3 = text;
string str4 = null;
string str5 = null;
float emSize = 8.25f;
FontStyle regular = FontStyle.Regular;
GraphicsUnit point = GraphicsUnit.Point;
int index = text.IndexOf(ch);
if (index > 0)
{
str3 = text.Substring(0, index);
if (index < (text.Length - 1))
{
int startIndex = text.IndexOf("style=");
if (startIndex != -1)
{
str4 = text.Substring(startIndex, text.Length - startIndex);
if (!str4.StartsWith("style="))
{
throw this.GetFormatException(text, ch);
}
str5 = text.Substring(index + 1, (startIndex - index) - 1);
}
else
{
str5 = text.Substring(index + 1, (text.Length - index) - 1);
}
string[] strArray = this.ParseSizeTokens(str5, ch);
if (strArray[0] != null)
{
try
{
emSize = (float)TypeDescriptor.GetConverter(typeof(float)).ConvertFromString(context, culture, strArray[0]);
}
catch
{
throw this.GetFormatException(text, ch);
}
}
if (strArray[1] != null)
{
point = this.ParseGraphicsUnits(strArray[1]);
}
if (str4 != null)
{
int num4 = str4.IndexOf("=");
foreach (string str6 in str4.Substring(num4 + 1, str4.Length - "style=".Length).Split(new char[] { ch }))
{
str6 = str6.Trim();
try
{
regular |= (FontStyle)Enum.Parse(typeof(FontStyle), str6, true);
}
catch (Exception exception)
{
if (exception is InvalidEnumArgumentException)
{
throw;
}
throw this.GetFormatException(text, ch);
}
FontStyle style2 = FontStyle.Strikeout | FontStyle.Underline | FontStyle.Italic | FontStyle.Bold;
if ((regular | style2) != style2)
{
throw new InvalidEnumArgumentException("style", (int)regular, typeof(FontStyle));
}
}
}
}
}
if (this.fontNameConverter == null)
{
this.fontNameConverter = new FontNameConverter();
}
return(new Font((string)this.fontNameConverter.ConvertFrom(context, culture, str3), emSize, regular, point));
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
string str = value as string;
if (str == null)
{
return base.ConvertFrom(context, culture, value);
}
string text = str.Trim();
if (text.Length == 0)
{
return null;
}
if (culture == null)
{
culture = CultureInfo.CurrentCulture;
}
char ch = culture.TextInfo.ListSeparator[0];
string str3 = text;
string str4 = null;
string str5 = null;
float emSize = 8.25f;
FontStyle regular = FontStyle.Regular;
GraphicsUnit point = GraphicsUnit.Point;
int index = text.IndexOf(ch);
if (index > 0)
{
str3 = text.Substring(0, index);
if (index < (text.Length - 1))
{
int startIndex = text.IndexOf("style=");
if (startIndex != -1)
{
str4 = text.Substring(startIndex, text.Length - startIndex);
if (!str4.StartsWith("style="))
{
throw this.GetFormatException(text, ch);
}
str5 = text.Substring(index + 1, (startIndex - index) - 1);
}
else
{
str5 = text.Substring(index + 1, (text.Length - index) - 1);
}
string[] strArray = this.ParseSizeTokens(str5, ch);
if (strArray[0] != null)
{
try
{
emSize = (float) TypeDescriptor.GetConverter(typeof(float)).ConvertFromString(context, culture, strArray[0]);
}
catch
{
throw this.GetFormatException(text, ch);
}
}
if (strArray[1] != null)
{
point = this.ParseGraphicsUnits(strArray[1]);
}
if (str4 != null)
{
int num4 = str4.IndexOf("=");
foreach (string str6 in str4.Substring(num4 + 1, str4.Length - "style=".Length).Split(new char[] { ch }))
{
str6 = str6.Trim();
try
{
regular |= (FontStyle) Enum.Parse(typeof(FontStyle), str6, true);
}
catch (Exception exception)
{
if (exception is InvalidEnumArgumentException)
{
throw;
}
throw this.GetFormatException(text, ch);
}
FontStyle style2 = FontStyle.Strikeout | FontStyle.Underline | FontStyle.Italic | FontStyle.Bold;
if ((regular | style2) != style2)
{
throw new InvalidEnumArgumentException("style", (int) regular, typeof(FontStyle));
}
}
}
}
}
if (this.fontNameConverter == null)
{
this.fontNameConverter = new FontNameConverter();
}
return new Font((string) this.fontNameConverter.ConvertFrom(context, culture, str3), emSize, regular, point);
}