DeGsoft
/
maui-linux
зеркало из https://github.com/DeGsoft/maui-linux.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Android Custom Font support (#236) 

* Implemented basic Support for Android Custom fonts

* Fixed Tabs

* Removed Private

* Changed behaviour to use UWP FontFamily style names

* Fixed Bug
This commit is contained in:
Roy 2016-07-19 01:38:05 +02:00 коммит произвёл Jason Smith
Родитель a490740a2e
Коммит 378ecc2a1a
1 изменённых файлов: 58 добавлений и 27 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

85
Xamarin.Forms.Platform.Android/Renderers/FontExtensions.cs
Просмотреть файл

@ -1,6 +1,8 @@
using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using Android.Graphics;
using AApplication = Android.App.Application;
namespace Xamarin.Forms.Platform.Android
{
@ -8,6 +10,8 @@ namespace Xamarin.Forms.Platform.Android
{
static readonly Dictionary<Tuple<string, FontAttributes>, Typeface> Typefaces = new Dictionary<Tuple<string, FontAttributes>, Typeface>();
static readonly Regex LoadFromAssets = new Regex(@"\w+\.((ttf)|(otf))\#\w*");
static Typeface s_defaultTypeface;
public static float ToScaledPixel(this Font self)
@ -21,11 +25,14 @@ namespace Xamarin.Forms.Platform.Android
{
case NamedSize.Micro:
return 10;
case NamedSize.Small:
return 12;
case NamedSize.Default:
case NamedSize.Medium:
return 14;
case NamedSize.Large:
return 18;
}
@ -44,21 +51,21 @@ namespace Xamarin.Forms.Platform.Android
if (Typefaces.TryGetValue(key, out result))
return result;
var style = TypefaceStyle.Normal;
if ((self.FontAttributes & (FontAttributes.Bold | FontAttributes.Italic)) == (FontAttributes.Bold | FontAttributes.Italic))
style = TypefaceStyle.BoldItalic;
else if ((self.FontAttributes & FontAttributes.Bold) != 0)
style = TypefaceStyle.Bold;
else if ((self.FontAttributes & FontAttributes.Italic) != 0)
style = TypefaceStyle.Italic;
if (self.FontFamily != null)
result = Typeface.Create(self.FontFamily, style);
else
if (self.FontFamily == null)
{
var style = ToTypefaceStyle(self.FontAttributes);
result = Typeface.Create(Typeface.Default, style);
Typefaces[key] = result;
return result;
}
else if (LoadFromAssets.IsMatch(self.FontFamily))
{
result = Typeface.CreateFromAsset(AApplication.Context.Assets, FontNameToFontFile(self.FontFamily));
}
else
{
var style = ToTypefaceStyle(self.FontAttributes);
result = Typeface.Create(self.FontFamily, style);
}
return (Typefaces[key] = result);
}
internal static bool IsDefault(this IFontElement self)
@ -68,26 +75,50 @@ namespace Xamarin.Forms.Platform.Android
internal static Typeface ToTypeface(this IFontElement self)
{
if (self.IsDefault())
return s_defaultTypeface ?? (s_defaultTypeface = Typeface.Default);
var key = new Tuple<string, FontAttributes>(self.FontFamily, self.FontAttributes);
Typeface result;
if (Typefaces.TryGetValue(key, out result))
return result;
var style = TypefaceStyle.Normal;
if ((self.FontAttributes & (FontAttributes.Bold | FontAttributes.Italic)) == (FontAttributes.Bold | FontAttributes.Italic))
style = TypefaceStyle.BoldItalic;
else if ((self.FontAttributes & FontAttributes.Bold) != 0)
style = TypefaceStyle.Bold;
else if ((self.FontAttributes & FontAttributes.Italic) != 0)
style = TypefaceStyle.Italic;
if (self.FontFamily != null)
result = Typeface.Create(self.FontFamily, style);
else
if (self.FontFamily == null)
{
var style = ToTypefaceStyle(self.FontAttributes);
result = Typeface.Create(Typeface.Default, style);
}
else if (LoadFromAssets.IsMatch(self.FontFamily))
{
result = Typeface.CreateFromAsset(AApplication.Context.Assets, FontNameToFontFile(self.FontFamily));
}
else
{
var style = ToTypefaceStyle(self.FontAttributes);
result = Typeface.Create(self.FontFamily, style);
}
return (Typefaces[key] = result);
}
Typefaces[key] = result;
return result;
public static TypefaceStyle ToTypefaceStyle(FontAttributes attrs)
{
var style = TypefaceStyle.Normal;
if ((attrs & (FontAttributes.Bold | FontAttributes.Italic)) == (FontAttributes.Bold | FontAttributes.Italic))
style = TypefaceStyle.BoldItalic;
else if ((attrs & FontAttributes.Bold) != 0)
style = TypefaceStyle.Bold;
else if ((attrs & FontAttributes.Italic) != 0)
style = TypefaceStyle.Italic;
return style;
}
static string FontNameToFontFile(string fontFamily)
{
int hashtagIndex = fontFamily.IndexOf('#');
if (hashtagIndex >= 0)
return fontFamily.Substring(0, hashtagIndex);
throw new InvalidOperationException($"Can't parse the {nameof(fontFamily)} {fontFamily}");
}
}
}