From aea9b244938647a14104d41123d2495cddd46b47 Mon Sep 17 00:00:00 2001
From: Yan Maniez <yanmaniez@hotmail.com>
Date: Mon, 23 Apr 2018 22:32:53 +0200
Subject: [PATCH] FormatedString

---
 AideDeJeu/AideDeJeu/App.xaml                  |  12 ++
 .../ViewModels/SpellDetailViewModel.cs        | 158 +++++++++++++++++-
 .../AideDeJeu/Views/SpellDetailPage.xaml      |  10 +-
 AideDeJeu/AideDeJeuLib/Spell.cs               |  22 ++-
 4 files changed, 195 insertions(+), 7 deletions(-)

diff --git a/AideDeJeu/AideDeJeu/App.xaml b/AideDeJeu/AideDeJeu/App.xaml
index d28f31cd..4726950d 100644
--- a/AideDeJeu/AideDeJeu/App.xaml
+++ b/AideDeJeu/AideDeJeu/App.xaml
@@ -101,6 +101,12 @@
                 <On Platform="UWP, WinRT, WinPhone" Value="Assets/Fonts/LinLibertine_RI.ttf#Linux Libertine" />
             </OnPlatform>
 
+            <OnPlatform x:Key="LinuxLibertineBoldItal" x:TypeArguments="x:String">
+                <On Platform="iOS" Value="Linux Libertine" />
+                <On Platform="Android" Value="LinLibertine_RBI.ttf#Linux Libertine" />
+                <On Platform="UWP, WinRT, WinPhone" Value="Assets/Fonts/LinLibertine_RBI.ttf#Linux Libertine" />
+            </OnPlatform>
+
             <Style TargetType="Label">
                 <Setter Property="FontFamily" Value="{DynamicResource LinuxLibertine}" />
             </Style>
@@ -141,6 +147,12 @@
                 <Setter Property="FontFamily" Value="{DynamicResource LinuxLibertineItal}" />
             </Style>
 
+            <Style TargetType="Label" x:Key="contentboldital">
+                <Setter Property="FontSize" Value="Medium" />
+                <Setter Property="TextColor" Value="{StaticResource contentblack}" />
+                <Setter Property="FontFamily" Value="{DynamicResource LinuxLibertineBoldItal}" />
+            </Style>
+
             <Style TargetType="NavigationPage">
                 <Setter Property="BarBackgroundColor" Value="{StaticResource titlered}" />
                 <Setter Property="BarTextColor" Value="{StaticResource bgtan}" />
diff --git a/AideDeJeu/AideDeJeu/ViewModels/SpellDetailViewModel.cs b/AideDeJeu/AideDeJeu/ViewModels/SpellDetailViewModel.cs
index e33d8858..2db57cd4 100644
--- a/AideDeJeu/AideDeJeu/ViewModels/SpellDetailViewModel.cs
+++ b/AideDeJeu/AideDeJeu/ViewModels/SpellDetailViewModel.cs
@@ -1,9 +1,12 @@
 using System;
 using System.Diagnostics;
+using System.Linq;
 using System.Threading.Tasks;
 using AideDeJeu.Models;
 using AideDeJeuLib;
+using HtmlAgilityPack;
 using Xamarin.Forms;
+using Xamarin.Forms.Internals;
 
 namespace AideDeJeu.ViewModels
 {
@@ -13,9 +16,58 @@ namespace AideDeJeu.ViewModels
         public Spell Item
         {
             get { return _Item; }
-            set { SetProperty(ref _Item, value); }
+            set { SetProperty(ref _Item, value); OnPropertyChanged(nameof(Description)); }
         }
 
+        public FormattedString Description
+        {
+            get
+            {
+                var fs = new FormattedString();
+                if (Item?.DescriptionDiv != null)
+                {
+                    HtmlToFormatedString(Item?.DescriptionDiv, fs, FontAttributes.None);
+                }
+                return fs;
+            }
+        }
+
+        void HtmlToFormatedString(HtmlNode parentNode, FormattedString fs, FontAttributes attributes)
+        {
+            foreach (var node in parentNode.ChildNodes)
+            {
+                if (node.NodeType == HtmlNodeType.Text)
+                {
+                    var resname = "content";
+                    if (attributes.HasFlag(FontAttributes.Bold))
+                    {
+                        resname += "bold";
+                    }
+                    if (attributes.HasFlag(FontAttributes.Italic))
+                    {
+                        resname += "ital";
+                    }
+                    var fd = FontData.FromResource(resname);
+                    fs.Spans.Add(new Span() { FontFamily = fd.FontFamily, FontAttributes = attributes | fd.FontAttributes, FontSize = fd.FontSize, ForegroundColor = fd.TextColor, Text = node.InnerText });
+                }
+                else if (node.NodeType == HtmlNodeType.Element && node.Name == "br")
+                {
+                    fs.Spans.Add(new Span() { Text = "\r\n" });
+                }
+                else if (node.NodeType == HtmlNodeType.Element && node.Name == "strong")
+                {
+                    HtmlToFormatedString(node, fs, attributes | FontAttributes.Bold);
+                }
+                else if (node.NodeType == HtmlNodeType.Element && node.Name == "em")
+                {
+                    HtmlToFormatedString(node, fs, attributes | FontAttributes.Italic);
+                }
+                else if (node.NodeType == HtmlNodeType.Element)
+                {
+                    HtmlToFormatedString(node, fs, attributes);
+                }
+            }
+        }
         public Command LoadItemCommand { get; set; }
 
         public SpellDetailViewModel(Spell item = null)
@@ -51,4 +103,108 @@ namespace AideDeJeu.ViewModels
             }
         }
     }
+
+
+
+
+    public class FontData
+    {
+        public double FontSize { get; set; }
+        public FontAttributes FontAttributes { get; set; }
+        public Color TextColor { get; set; }
+        public string FontFamily { get; set; }
+
+        public static FontData DefaultValues()
+        {
+            return new FontData
+            {
+                FontSize = (double)Label.FontSizeProperty.DefaultValue,
+                FontAttributes = (FontAttributes)Label.FontAttributesProperty.DefaultValue,
+                TextColor = (Color)Label.TextColorProperty.DefaultValue,
+                FontFamily = Label.FontFamilyProperty.DefaultValue.ToString()
+            };
+        }
+
+        public static FontData FromResource(string resourceName)
+        {
+            var resource = Application.Current.Resources[resourceName];
+            if (resource == null)
+            {
+                return DefaultValues();
+            }
+            var style = (Style)resource;
+
+            var data = new FontData();
+            var colorSetter = style.Setters.FirstOrDefault(x => x.Property == Label.TextColorProperty);
+            var attrSetter = style.Setters.FirstOrDefault(x => x.Property == Label.FontAttributesProperty);
+            var fontSizeSetter = style.Setters.FirstOrDefault(x => x.Property == Label.FontSizeProperty);
+            var fontFamilySetter = style.Setters.FirstOrDefault(x => x.Property == Label.FontFamilyProperty);
+            var platformFontFamilySetter = ResolveSetterToClass<string>(fontFamilySetter);
+            var platformColorSetter = ResolveSetterToStruct<Color>(colorSetter);
+
+            if (platformColorSetter.HasValue)
+            {
+                data.TextColor = platformColorSetter.Value;
+            }
+            else
+            { 
+                data.TextColor = colorSetter?.Value as Color? ?? (Color)Label.TextColorProperty.DefaultValue;
+            }
+            data.FontSize = fontSizeSetter?.Value as double? ?? (double)Label.FontSizeProperty.DefaultValue;
+
+            
+            if (platformFontFamilySetter != null)
+            {
+                data.FontFamily = platformFontFamilySetter;
+            }
+            else
+            { 
+                data.FontFamily = fontFamilySetter != null && fontFamilySetter.Value != null
+                    ? fontFamilySetter.Value.ToString()
+                    : Label.FontFamilyProperty.DefaultValue?.ToString();
+            }
+
+            data.FontAttributes = attrSetter?.Value != null
+                ? (FontAttributes)Enum.Parse(typeof(FontAttributes), attrSetter.Value.ToString())
+                : (FontAttributes)Label.FontAttributesProperty.DefaultValue;
+
+            return data;
+        }
+
+        static T ResolveOnPlatformToClass<T>(string key) where T : class
+        {
+            var resource = Application.Current.Resources[key];
+            return resource as OnPlatform<T>;
+        }
+        static T ResolveSetterToClass<T>(Setter setter) where T : class
+        {
+            if (setter?.Value is DynamicResource)
+            {
+                var res = setter.Value as DynamicResource;
+                return ResolveOnPlatformToClass<T>(res.Key);
+            }
+            else
+            {
+                return setter?.Value as T;
+            }
+        }
+
+        static Nullable<T> ResolveOnPlatformToStruct<T>(string key) where T : struct
+        {
+            var resource = Application.Current.Resources[key];
+            return resource as OnPlatform<Nullable<T>>;
+        }
+        static Nullable<T> ResolveSetterToStruct<T>(Setter setter) where T : struct
+        {
+            if(setter?.Value is DynamicResource)
+            {
+                var res = setter.Value as DynamicResource;
+                return ResolveOnPlatformToStruct<T>(res.Key);
+            }
+            else
+            {
+                return setter?.Value as T?;
+            }
+        }
+    }
 }
diff --git a/AideDeJeu/AideDeJeu/Views/SpellDetailPage.xaml b/AideDeJeu/AideDeJeu/Views/SpellDetailPage.xaml
index cad74e06..349c3882 100644
--- a/AideDeJeu/AideDeJeu/Views/SpellDetailPage.xaml
+++ b/AideDeJeu/AideDeJeu/Views/SpellDetailPage.xaml
@@ -15,29 +15,29 @@
             </StackLayout>
 
             <StackLayout Orientation="Horizontal">
-                <Label Text="Durée d'incantation :" Style="{StaticResource Key=contentbold}" />
+                <Label Text="Durée d'incantation :" LineBreakMode="NoWrap" Style="{StaticResource Key=contentbold}" />
                 <Label Text="{Binding Item.CastingTime}" Style="{StaticResource Key=content}" />
             </StackLayout>
 
 
             <StackLayout Orientation="Horizontal">
-                <Label Text="Portée :" Style="{StaticResource Key=contentbold}" />
+                <Label Text="Portée :" LineBreakMode="NoWrap" Style="{StaticResource Key=contentbold}" />
                 <Label Text="{Binding Item.Range}" Style="{StaticResource Key=content}" />
             </StackLayout>
 
             <StackLayout Orientation="Horizontal">
-                <Label Text="Composantes :" Style="{StaticResource Key=contentbold}" />
+                <Label Text="Composantes :" LineBreakMode="NoWrap" Style="{StaticResource Key=contentbold}" />
                 <Label Text="{Binding Item.Components}" Style="{StaticResource Key=content}" />
             </StackLayout>
 
             <StackLayout Orientation="Horizontal">
-                <Label Text="Durée :" Style="{StaticResource Key=contentbold}" />
+                <Label Text="Durée :" LineBreakMode="NoWrap" Style="{StaticResource Key=contentbold}" />
                 <Label Text="{Binding Item.Duration}" Style="{StaticResource Key=content}" />
             </StackLayout>
 
             <Label Text=" " />
 
-            <Label Text="{Binding Item.Description}" Style="{StaticResource Key=content}" />
+            <Label FormattedText="{Binding Description}" Style="{StaticResource Key=content}" />
 
             <Label Text="{Binding Item.Source}" Style="{StaticResource Key=content}" />
         </StackLayout>
diff --git a/AideDeJeu/AideDeJeuLib/Spell.cs b/AideDeJeu/AideDeJeuLib/Spell.cs
index f6bf45e6..a5d5d654 100644
--- a/AideDeJeu/AideDeJeuLib/Spell.cs
+++ b/AideDeJeu/AideDeJeuLib/Spell.cs
@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Text.RegularExpressions;
 
 namespace AideDeJeuLib
 {
@@ -20,7 +21,26 @@ namespace AideDeJeuLib
         public string Components { get; set; }
         public string Duration { get; set; }
         public string DescriptionHtml { get { return DescriptionDiv?.InnerHtml; } }
-        public string Description { get { return DescriptionDiv?.InnerHtml?.Replace("<br>", "\r\n")?.Replace("<strong>","")?.Replace("</strong>", "")?.Replace("<em>", "")?.Replace("</em>", ""); } }
+        public string Description
+        {
+            get
+            {
+                string html = DescriptionDiv?.InnerText?.Replace("\n", "\r\n\r\n");
+                //string html = DescriptionDiv?.InnerHtml;
+                //html = html?.Replace("<br>", "\r\n");
+                //html = html?.Replace("<strong>", "");
+                //html = html?.Replace("</strong>", "");
+                //html = html?.Replace("<em>", "");
+                //html = html?.Replace("</em>", "");
+                //if (html != null)
+                //{
+                //    var regex = new Regex("<a href=.*?>");
+                //    html = regex.Replace(html, "");
+                //}
+                //html = html?.Replace("</a>", "");
+                return html;
+            }
+        }
         public HtmlNode DescriptionDiv { get; set; }
         public string Overflow { get; set; }
         public string NoOverflow { get; set; }