From b11d009195f5f9b5302f3065f75d6e2bf40fc762 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81d=C3=A1m=20Kov=C3=A1cs?= <kovacsadam07@outlook.hu>
Date: Mon, 14 Feb 2022 12:07:17 +0100
Subject: [PATCH] Item name "..."

---
 src/GuiApp/FileTime.Avalonia/App.axaml        |   4 +
 .../Converters/NamePartShrinkerConverter.cs   | 119 ++++++++++++++++++
 .../FileTime.Avalonia.csproj                  |   1 +
 .../FileTime.Avalonia/Models/ItemNamePart.cs  |  12 +-
 .../Services/CommandHandlerService.cs         |   6 +
 .../Services/ItemNameConverterService.cs      |   2 +-
 .../ViewModels/ItemNamePartViewModel.cs       |  16 +++
 .../ViewModels/MainPageViewModel.cs           |  16 +++
 .../FileTime.Avalonia/Views/ItemView.axaml    |  23 +++-
 .../FileTime.Avalonia/Views/MainWindow.axaml  |   7 +-
 .../Views/MainWindow.axaml.cs                 |   6 -
 11 files changed, 188 insertions(+), 24 deletions(-)
 create mode 100644 src/GuiApp/FileTime.Avalonia/Converters/NamePartShrinkerConverter.cs
 create mode 100644 src/GuiApp/FileTime.Avalonia/ViewModels/ItemNamePartViewModel.cs

diff --git a/src/GuiApp/FileTime.Avalonia/App.axaml b/src/GuiApp/FileTime.Avalonia/App.axaml
index 5043341..ee6a840 100644
--- a/src/GuiApp/FileTime.Avalonia/App.axaml
+++ b/src/GuiApp/FileTime.Avalonia/App.axaml
@@ -135,6 +135,7 @@
 			<converters:ItemViewModelIsAttibuteTypeConverter x:Key="ItemViewModelIsNotAttibuteTypeConverter" Invert="true"/>
 			<converters:GetFileExtensionConverter x:Key="GetFileExtensionConverter"/>
 			<converters:CommandToCommandNameConverter x:Key="CommandToCommandNameConverter"/>
+			<converters:NamePartShrinkerConverter x:Key="NamePartShrinkerConverter"/>
 
 		</ResourceDictionary>
 	</Application.Resources>
@@ -158,11 +159,14 @@
 		</Style>
 		<Style Selector="ListBox.ContentListView">
 			<Setter Property="Background" Value="Transparent"/>
+			<Setter Property="HorizontalAlignment" Value="Stretch"/>
 		</Style>
 		<Style Selector="ListBox.ContentListView > ListBoxItem">
 			<Setter Property="Margin" Value="0"/>
 			<Setter Property="Padding" Value="0"/>
 			<Setter Property="Background" Value="Transparent"/>
+			<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+			<Setter Property="HorizontalAlignment" Value="Stretch"/>
 			<Setter Property="ContextMenu">
 				<ContextMenu Items="{Binding Converter={StaticResource ContextMenuGenerator}}"/>
 			</Setter>
diff --git a/src/GuiApp/FileTime.Avalonia/Converters/NamePartShrinkerConverter.cs b/src/GuiApp/FileTime.Avalonia/Converters/NamePartShrinkerConverter.cs
new file mode 100644
index 0000000..7b16f3b
--- /dev/null
+++ b/src/GuiApp/FileTime.Avalonia/Converters/NamePartShrinkerConverter.cs
@@ -0,0 +1,119 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using Avalonia.Data.Converters;
+using Avalonia.Media;
+using FileTime.Avalonia.Models;
+using FileTime.Avalonia.ViewModels;
+using FileTime.Avalonia.Views;
+
+namespace FileTime.Avalonia.Converters
+{
+    public class NamePartShrinkerConverter : IMultiValueConverter
+    {
+        private const int PixelPerChar = 8;
+        public object? Convert(IList<object?> values, Type targetType, object? parameter, CultureInfo culture)
+        {
+            if (values.Count > 0 && values[0] is IList<ItemNamePart> nameParts)
+            {
+                var newNameParts = nameParts;
+                //if (values.Count > 1 && values[1] is ItemView itemView && itemView.ShowAttributes && itemView.Bounds.Width > 0)
+                if (values.Count > 1 && values[1] is double width && width > 0)
+                {
+                    newNameParts = GetNamePartsForWidth(nameParts, width - 340);
+                }
+
+                return newNameParts.Select(p => new ItemNamePartViewModel(p.Text, p.IsSpecial ? TextDecorations.Underline : null)).ToList();
+            }
+            return null;
+        }
+
+        private static List<ItemNamePart> GetNamePartsForWidth(IList<ItemNamePart> nameParts, double maxWidth)
+        {
+            //Best case, we are in the range
+            var textLength = nameParts.Select(p => p.Text.Length).Sum();
+            if (textLength * PixelPerChar <= maxWidth)
+            {
+                return nameParts.ToList();
+            }
+
+            //Trying at least with the special parts
+            var newNameParts = new ItemNamePart?[nameParts.Count];
+            for (var i = 0; i < nameParts.Count; i++)
+            {
+                if (nameParts[i].IsSpecial)
+                {
+                    newNameParts[i] = nameParts[i];
+                }
+            }
+
+            return GetNamePartsForWidthOptimistic(nameParts, newNameParts, maxWidth);
+        }
+
+        private static List<ItemNamePart> GetNamePartsForWidthOptimistic(IList<ItemNamePart> nameParts, ItemNamePart?[] newNameParts, double maxWidth)
+        {
+            var trimmedIndexes = new List<int>();
+            for (var i = 0; i < newNameParts.Length; i++)
+            {
+                if (newNameParts[i] == null)
+                {
+                    trimmedIndexes.Add(i);
+                    newNameParts[i] = new ItemNamePart("...");
+                }
+            }
+
+            var textLength = newNameParts.Select(p => p?.Text.Length ?? 0).Sum();
+            if (textLength * PixelPerChar > maxWidth)
+            {
+                return GetNamePartsForWidthPessimistic(nameParts, maxWidth);
+            }
+
+            foreach (var trimmedIndex in trimmedIndexes)
+            {
+                var baseTextLength = newNameParts.Select((p, i) => i == trimmedIndex ? 0 : (p?.Text.Length ?? 0)).Sum();
+                var proposedText = nameParts[trimmedIndex].Text;
+                var trimmed = false;
+                while ((baseTextLength + proposedText.Length + (trimmed ? 3 : 0)) * PixelPerChar > maxWidth)
+                {
+                    proposedText = proposedText[0..^1];
+                    trimmed = true;
+                }
+                newNameParts[trimmedIndex] = new ItemNamePart(proposedText + (trimmed ? "..." : ""));
+                if (trimmed) break;
+            }
+
+            return newNameParts.OfType<ItemNamePart>().ToList();
+        }
+
+        private static List<ItemNamePart> GetNamePartsForWidthPessimistic(IList<ItemNamePart> nameParts, double maxWidth)
+        {
+            var newNameParts = new List<ItemNamePart>(nameParts);
+            foreach (var namePart in nameParts)
+            {
+                var baseTextLength = newNameParts.Select(p => p.Text.Length).Sum();
+                var proposedText = namePart.Text;
+                var trimmed = false;
+
+                while ((baseTextLength + 3) * PixelPerChar > maxWidth && proposedText != "")
+                {
+                    proposedText = proposedText[0..^1];
+                    trimmed = true;
+                }
+
+                if (!string.IsNullOrWhiteSpace(proposedText)) newNameParts.Add(new ItemNamePart(proposedText, namePart.IsSpecial));
+                if (trimmed) break;
+            }
+            if (newNameParts.Last().IsSpecial)
+            {
+                newNameParts.Add(new ItemNamePart("..."));
+            }
+            else
+            {
+                var last = newNameParts.Last();
+                last.Text += "...";
+            }
+            return newNameParts;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/GuiApp/FileTime.Avalonia/FileTime.Avalonia.csproj b/src/GuiApp/FileTime.Avalonia/FileTime.Avalonia.csproj
index e794cc5..08141c0 100644
--- a/src/GuiApp/FileTime.Avalonia/FileTime.Avalonia.csproj
+++ b/src/GuiApp/FileTime.Avalonia/FileTime.Avalonia.csproj
@@ -4,6 +4,7 @@
     <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ApplicationIcon>Assets\filetime.ico</ApplicationIcon>
+    <Version>0.0.1</Version>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)' == 'Debug'">
     <DebugSymbols>true</DebugSymbols>
diff --git a/src/GuiApp/FileTime.Avalonia/Models/ItemNamePart.cs b/src/GuiApp/FileTime.Avalonia/Models/ItemNamePart.cs
index 5194358..ccfbd62 100644
--- a/src/GuiApp/FileTime.Avalonia/Models/ItemNamePart.cs
+++ b/src/GuiApp/FileTime.Avalonia/Models/ItemNamePart.cs
@@ -1,18 +1,14 @@
-using Avalonia.Media;
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace FileTime.Avalonia.Models
+namespace FileTime.Avalonia.Models
 {
     public class ItemNamePart
     {
         public string Text { get; set; }
-        public TextDecorationCollection? TextDecorations { get; set; }
+        public bool IsSpecial { get; set; }
 
-        public ItemNamePart(string text)
+        public ItemNamePart(string text, bool isSpecial = false)
         {
             Text = text;
+            IsSpecial = isSpecial;
         }
     }
 }
diff --git a/src/GuiApp/FileTime.Avalonia/Services/CommandHandlerService.cs b/src/GuiApp/FileTime.Avalonia/Services/CommandHandlerService.cs
index 5006458..a6d8641 100644
--- a/src/GuiApp/FileTime.Avalonia/Services/CommandHandlerService.cs
+++ b/src/GuiApp/FileTime.Avalonia/Services/CommandHandlerService.cs
@@ -64,6 +64,7 @@ namespace FileTime.Avalonia.Services
                 {Commands.CreateElement, CreateElement},
                 {Commands.Cut, Cut},
                 {Commands.EnterRapidTravel, EnterRapidTravelMode},
+                {Commands.Edit, Edit},
                 {Commands.GoToHome, GotToHome},
                 {Commands.GoToPath, GoToContainer},
                 {Commands.GoToProvider, GotToProvider},
@@ -779,5 +780,10 @@ namespace FileTime.Avalonia.Services
 
             return Task.CompletedTask;
         }
+
+        private Task Edit()
+        {
+            return Task.CompletedTask;
+        }
     }
 }
\ No newline at end of file
diff --git a/src/GuiApp/FileTime.Avalonia/Services/ItemNameConverterService.cs b/src/GuiApp/FileTime.Avalonia/Services/ItemNameConverterService.cs
index 1230dba..f77b3b8 100644
--- a/src/GuiApp/FileTime.Avalonia/Services/ItemNameConverterService.cs
+++ b/src/GuiApp/FileTime.Avalonia/Services/ItemNameConverterService.cs
@@ -35,7 +35,7 @@ namespace FileTime.Avalonia.Services
                         nameParts.Add(new ItemNamePart(before));
                     }
 
-                    nameParts.Add(new ItemNamePart(rapidTravel) { TextDecorations = TextDecorations.Underline });
+                    nameParts.Add(new ItemNamePart(rapidTravel, true));
                 }
 
                 if (nameLeft.Length > 0)
diff --git a/src/GuiApp/FileTime.Avalonia/ViewModels/ItemNamePartViewModel.cs b/src/GuiApp/FileTime.Avalonia/ViewModels/ItemNamePartViewModel.cs
new file mode 100644
index 0000000..dc39819
--- /dev/null
+++ b/src/GuiApp/FileTime.Avalonia/ViewModels/ItemNamePartViewModel.cs
@@ -0,0 +1,16 @@
+using Avalonia.Media;
+
+namespace FileTime.Avalonia.ViewModels
+{
+    public class ItemNamePartViewModel
+    {
+        public string Text { get; set; }
+        public TextDecorationCollection? TextDecorations { get; set; }
+
+        public ItemNamePartViewModel(string text, TextDecorationCollection? textDecorations)
+        {
+            Text = text;
+            TextDecorations = textDecorations;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/GuiApp/FileTime.Avalonia/ViewModels/MainPageViewModel.cs b/src/GuiApp/FileTime.Avalonia/ViewModels/MainPageViewModel.cs
index 78525ea..7049b1b 100644
--- a/src/GuiApp/FileTime.Avalonia/ViewModels/MainPageViewModel.cs
+++ b/src/GuiApp/FileTime.Avalonia/ViewModels/MainPageViewModel.cs
@@ -21,6 +21,7 @@ using FileTime.Avalonia.IconProviders;
 using Microsoft.Extensions.Logging;
 using System.Threading;
 using Avalonia.Input;
+using System.Reflection;
 
 namespace FileTime.Avalonia.ViewModels
 {
@@ -52,9 +53,24 @@ namespace FileTime.Avalonia.ViewModels
         [Property]
         private bool _loading = true;
 
+        public string Title { get; private set; }
+
         async partial void OnInitialize()
         {
             _logger?.LogInformation($"Starting {nameof(MainPageViewModel)} initialization...");
+
+            var version = Assembly.GetExecutingAssembly().GetName().Version;
+            var versionString = "Unknwon version";
+            if (version != null)
+            {
+                versionString = $"{version.Major}.{version.Minor}.{version.Build}";
+                if (version.Revision != 0)
+                {
+                    versionString += $" ({version.Revision})";
+                }
+            }
+            Title = "FileTime " + versionString;
+
             _timeRunner = App.ServiceProvider.GetService<TimeRunner>()!;
             var inputInterface = (BasicInputHandler)App.ServiceProvider.GetService<IInputInterface>()!;
             inputInterface.InputHandler = DialogService.ReadInputs;
diff --git a/src/GuiApp/FileTime.Avalonia/Views/ItemView.axaml b/src/GuiApp/FileTime.Avalonia/Views/ItemView.axaml
index b2a68a8..22d3f40 100644
--- a/src/GuiApp/FileTime.Avalonia/Views/ItemView.axaml
+++ b/src/GuiApp/FileTime.Avalonia/Views/ItemView.axaml
@@ -5,15 +5,17 @@
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
              x:Class="FileTime.Avalonia.Views.ItemView"
 			 xmlns:models="using:FileTime.Avalonia.Models"
-			 x:Name="ItemRoot" Background="{Binding ViewMode,Converter={StaticResource ItemViewModeToBackgroundConverter}}">
-	<Grid ColumnDefinitions="Auto,*,Auto" Margin="3">
+			 x:Name="ItemRoot" 
+			 HorizontalContentAlignment="Stretch"
+			 HorizontalAlignment="Stretch"
+			 Background="{Binding ViewMode,Converter={StaticResource ItemViewModeToBackgroundConverter}}">
+	<Grid ColumnDefinitions="20,*,300" Margin="3" x:Name="RootGrid">
 		<Grid.Styles>
 			<Style Selector="TextBlock">
 				<Setter Property="Foreground" Value="{Binding DataContext.ViewMode,Converter={StaticResource ItemViewModeToForegroundConverter},ElementName=ItemRoot}"/>
 			</Style>
 		</Grid.Styles>
 		<Image
-			Grid.RowSpan="2"
 			Width="18"
 			Height="18"
 			HorizontalAlignment="Left"
@@ -24,7 +26,15 @@
 			Margin="5,0,0,0"
 			Grid.Column="1"
 			VerticalAlignment="Center"
-			Items="{Binding DisplayName}">
+			HorizontalAlignment="Stretch">
+			<ItemsControl.Items>
+				<MultiBinding Converter="{StaticResource NamePartShrinkerConverter}">
+					<MultiBinding.Bindings>
+						<Binding Path="DisplayName"/>
+						<Binding ElementName="RootGrid" Path="Bounds.Width"/>
+					</MultiBinding.Bindings>
+				</MultiBinding>
+			</ItemsControl.Items>
 			<ItemsControl.ItemsPanel>
 				<ItemsPanelTemplate>
 					<StackPanel Orientation="Horizontal" />
@@ -42,7 +52,8 @@
 		</ItemsControl>
 
 		<Grid Grid.Column="2" IsVisible="{Binding ShowAttributes,ElementName=ItemRoot}">
-			<Grid ColumnDefinitions="30,50,90,40,45" 
+			<Grid ColumnDefinitions="50,50,90,40,45"
+				  HorizontalAlignment="Right"
 				  IsVisible="{Binding Converter={StaticResource ItemViewModelIsAttibuteTypeConverter},ConverterParameter={x:Static models:AttibuteType.LocalFile}}">
 
 				<TextBlock HorizontalAlignment="Right" Classes="SmallText" Text="{Binding Item.Name, Converter={StaticResource GetFileExtensionConverter}}"/>
@@ -52,6 +63,7 @@
 				<TextBlock HorizontalAlignment="Right" Classes="SmallText" Grid.Column="4" Text="{Binding Item.Attributes}"/>
 			</Grid>
 			<Grid ColumnDefinitions="90,40,45" 
+				  HorizontalAlignment="Right"
 				  IsVisible="{Binding Converter={StaticResource ItemViewModelIsAttibuteTypeConverter},ConverterParameter={x:Static models:AttibuteType.Container}}">
 				
 				<TextBlock HorizontalAlignment="Right" Classes="SmallText" Text="{Binding Item.CreatedAt, Converter={StaticResource DateTimeConverter}, ConverterParameter=yyyy-MM-dd}"/>
@@ -59,6 +71,7 @@
 				<TextBlock HorizontalAlignment="Right" Classes="SmallText" Grid.Column="2" Text="{Binding Item.Attributes}"/>
 			</Grid>
 			<Grid ColumnDefinitions="90,40,45" 
+				  HorizontalAlignment="Right"
 				  IsVisible="{Binding Converter={StaticResource ItemViewModelIsAttibuteTypeConverter},ConverterParameter={x:Static models:AttibuteType.Element}}">
 				
 				<TextBlock HorizontalAlignment="Right" Classes="SmallText" Text="{Binding Item.CreatedAt, Converter={StaticResource DateTimeConverter}, ConverterParameter=yyyy-MM-dd}"/>
diff --git a/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml b/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml
index a5ef93b..54b7947 100644
--- a/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml
+++ b/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml
@@ -27,7 +27,7 @@
 
 				<Grid PointerPressed="HeaderPointerPressed">
 					<Rectangle Fill="#01000000"/>
-					<TextBlock Margin="15,10" Text="FileTime"/>
+					<TextBlock Margin="15,10" Text="{Binding Title}"/>
 				</Grid>
 
 				<Grid Grid.Column="1" PointerPressed="HeaderPointerPressed">
@@ -249,13 +249,12 @@
 									IsTabStop="True"
 									Items="{Binding AppState.SelectedTab.CurrentLocation.Items^}"
 									ScrollViewer.HorizontalScrollBarVisibility="Hidden"
-									ScrollViewer.VerticalScrollBarVisibility="Hidden"
+									ScrollViewer.VerticalScrollBarVisibility="Visible"
 									SelectedItem="{Binding AppState.SelectedTab.SelectedItem, Mode=TwoWay}"
-									SelectionChanged="OnCurrentItemsSelectionChanged"
 									Classes="ContentListView">
 									<ListBox.ItemTemplate>
 										<DataTemplate>
-											<local:ItemView/>
+											<local:ItemView HorizontalContentAlignment="Stretch" HorizontalAlignment="Stretch"/>
 										</DataTemplate>
 									</ListBox.ItemTemplate>
 								</ListBox>
diff --git a/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml.cs b/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml.cs
index 473ba9e..7949132 100644
--- a/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml.cs
+++ b/src/GuiApp/FileTime.Avalonia/Views/MainWindow.axaml.cs
@@ -154,11 +154,5 @@ namespace FileTime.Avalonia.Views
                 BeginMoveDrag(e);
             }
         }
-
-        private void OnCurrentItemsSelectionChanged(object sender, SelectionChangedEventArgs e)
-        {
-            var listBox = this.FindControl<ListBox>("CurrentItems");
-            listBox.ScrollIntoView(listBox.SelectedIndex);
-        }
     }
 }
\ No newline at end of file