Allow configuring min/max displayable samples and drag slider

Software/LogicAnalyzer/LogicAnalyzer/Classes/GeneralSettings.cs

@@ -0,0 +1,8 @@
+namespace LogicAnalyzer.Classes
+{
+    public class GeneralSettings
+    {
+        public int MinSamples { get; set; } = 10;
+        public int MaxSamples { get; set; } = 10000;
+    }
+}

Software/LogicAnalyzer/LogicAnalyzer/Controls/SamplePreviewer.axaml.cs

@@ -1,5 +1,6 @@
 using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using LogicAnalyzer.Classes;
@@ -23,10 +24,14 @@ public partial class SamplePreviewer : UserControl, ISampleDisplay
         public int VisibleSamples { get; private set; }
 
         public event EventHandler<PinnedEventArgs>? PinnedChanged;
+        public event EventHandler<ViewChangedEventArgs>? ViewChanged;
 
         bool pinned = false;
         public bool Pinned { get { return pinned; } set { pinned = value; if (PinnedChanged != null) PinnedChanged(this, new PinnedEventArgs { Pinned = pinned }); } }
 
+        bool dragging = false;
+        double dragOffset = 0;
+
         public SamplePreviewer()
         {
             InitializeComponent();
@@ -125,6 +130,71 @@ public void UpdateVisibleSamples(int FirstSample, int VisibleSamples)
             InvalidateVisual();
         }
 
+        protected override void OnPointerPressed(PointerPressedEventArgs e)
+        {
+            base.OnPointerPressed(e);
+
+            if (e.Source == lblPin)
+                return;
+
+            var point = e.GetPosition(this);
+            double ratio = Bounds.Width / sampleCount;
+            double visibleWidth = VisibleSamples * ratio;
+            double startX = FirstSample * ratio;
+
+            if (point.X >= startX && point.X <= startX + visibleWidth)
+            {
+                dragOffset = point.X - startX;
+            }
+            else
+            {
+                dragOffset = visibleWidth / 2.0;
+                updateView(point.X);
+            }
+
+            dragging = true;
+            e.Pointer.Capture(this);
+        }
+
+        protected override void OnPointerMoved(PointerEventArgs e)
+        {
+            base.OnPointerMoved(e);
+
+            if (!dragging)
+                return;
+
+            var point = e.GetPosition(this);
+            updateView(point.X);
+        }
+
+        protected override void OnPointerReleased(PointerReleasedEventArgs e)
+        {
+            base.OnPointerReleased(e);
+
+            if (!dragging)
+                return;
+
+            dragging = false;
+            e.Pointer.Capture(null);
+
+            var point = e.GetPosition(this);
+            updateView(point.X);
+        }
+
+        void updateView(double x)
+        {
+            if (sampleCount == 0)
+                return;
+
+            double ratio = Bounds.Width / sampleCount;
+            double newStart = x - dragOffset;
+
+            int first = (int)(newStart / ratio);
+            first = Math.Clamp(first, 0, sampleCount - VisibleSamples);
+
+            ViewChanged?.Invoke(this, new ViewChangedEventArgs { FirstSample = first });
+        }
+
         private void TextBlock_PointerPressed(object? sender, Avalonia.Input.PointerPressedEventArgs e)
         {
             pinned = !pinned;
@@ -137,5 +207,10 @@ public class PinnedEventArgs : EventArgs
         {
             public bool Pinned { get; set; }
         }
+
+        public class ViewChangedEventArgs : EventArgs
+        {
+            public int FirstSample { get; set; }
+        }
     }
 }

Software/LogicAnalyzer/LogicAnalyzer/Dialogs/GeneralSettingsDialog.axaml

@@ -0,0 +1,22 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d"
+        x:Class="LogicAnalyzer.Dialogs.GeneralSettingsDialog"
+        Background="#383838" Title="Settings"
+        Classes="tool_window" Icon="/Assets/Ico40.ico"
+        Width="300" Height="180" CanResize="False" WindowStartupLocation="CenterOwner">
+  <Panel>
+    <Grid ColumnDefinitions="140,*" RowDefinitions="*,*,Auto" Margin="10,15,10,15">
+      <TextBlock Grid.Column="0" Grid.Row="0" VerticalAlignment="Center" Margin="5,0,0,0">Min display samples:</TextBlock>
+      <NumericUpDown Grid.Column="1" Grid.Row="0" Height="32" Minimum="1" Maximum="1000000" Name="nudMin" />
+      <TextBlock Grid.Column="0" Grid.Row="1" VerticalAlignment="Center" Margin="5,0,0,0">Max display samples:</TextBlock>
+      <NumericUpDown Grid.Column="1" Grid.Row="1" Height="32" Minimum="1" Maximum="1000000" Name="nudMax" />
+      <StackPanel Orientation="Horizontal" VerticalAlignment="Bottom" Grid.Column="1" Grid.Row="2" HorizontalAlignment="Right">
+        <Button Name="btnAccept">Accept</Button>
+        <Button Name="btnCancel" Margin="10,0,0,0">Cancel</Button>
+      </StackPanel>
+    </Grid>
+  </Panel>
+</Window>

Software/LogicAnalyzer/LogicAnalyzer/Dialogs/GeneralSettingsDialog.axaml.cs

@@ -0,0 +1,56 @@
+using Avalonia.Controls;
+using LogicAnalyzer.Extensions;
+using System;
+
+namespace LogicAnalyzer.Dialogs
+{
+    public partial class GeneralSettingsDialog : Window
+    {
+        public int MinSamples { get; set; }
+        public int MaxSamples { get; set; }
+
+        public int MinSamplesLimit { get; set; }
+        public int MaxSamplesLimit { get; set; }
+
+        public GeneralSettingsDialog()
+        {
+            InitializeComponent();
+            btnAccept.Click += BtnAccept_Click;
+            btnCancel.Click += BtnCancel_Click;
+        }
+
+        protected override void OnOpened(EventArgs e)
+        {
+            base.OnOpened(e);
+            this.FixStartupPosition();
+            nudMin.Minimum = MinSamplesLimit;
+            nudMin.Maximum = MaxSamplesLimit;
+            nudMax.Minimum = MinSamplesLimit;
+            nudMax.Maximum = MaxSamplesLimit;
+
+            nudMin.Value = Math.Clamp(MinSamples, MinSamplesLimit, MaxSamplesLimit);
+            nudMax.Value = Math.Clamp(MaxSamples, MinSamplesLimit, MaxSamplesLimit);
+
+            var tooltip = $"Min: {MinSamplesLimit:#,##0}\r\nMax: {MaxSamplesLimit:#,##0}";
+            ToolTip.SetTip(nudMin, tooltip);
+            ToolTip.SetTip(nudMax, tooltip);
+        }
+
+        private void BtnCancel_Click(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+        {
+            Close(false);
+        }
+
+        private async void BtnAccept_Click(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+        {
+            if (nudMax.Value < nudMin.Value)
+            {
+                await this.ShowError("Invalid settings", "Max samples must be greater than Min samples.");
+                return;
+            }
+            MinSamples = (int)nudMin.Value;
+            MaxSamples = (int)nudMax.Value;
+            Close(true);
+        }
+    }
+}

Software/LogicAnalyzer/LogicAnalyzer/LogicAnalyzer.csproj

@@ -48,11 +48,14 @@
     <ProjectReference Include="..\SharedDriver\SharedDriver.csproj" />
     <ProjectReference Include="..\SignalDescriptionLanguage\SignalDescriptionLanguage.csproj" />
   </ItemGroup>
-  <ItemGroup>
-    <Compile Update="Dialogs\SelectedRegionDialog.axaml.cs">
-      <DependentUpon>SelectedRegionDialog.axaml</DependentUpon>
-    </Compile>
-  </ItemGroup>
+  <ItemGroup>
+    <Compile Update="Dialogs\SelectedRegionDialog.axaml.cs">
+      <DependentUpon>SelectedRegionDialog.axaml</DependentUpon>
+    </Compile>
+    <Compile Update="Dialogs\GeneralSettingsDialog.axaml.cs">
+      <DependentUpon>GeneralSettingsDialog.axaml</DependentUpon>
+    </Compile>
+  </ItemGroup>
   <ItemGroup>
     <AvaloniaResource Include="Assets\**" />
   </ItemGroup>

Software/LogicAnalyzer/LogicAnalyzer/MainWindow.axaml

@@ -17,7 +17,8 @@
           <Separator/>
           <MenuItem Header="_Exit" Name="mnuExit"/>
         </MenuItem>
-      <MenuItem Header="Network settings" IsEnabled="False" Name="mnuSettings">
+      <MenuItem Header="_Settings" Name="mnuSettings">
+        <MenuItem Header="General" Name="mnuGeneralSettings"></MenuItem>
         <MenuItem Header="Update network settings" Name="mnuNetSettings"></MenuItem>
       </MenuItem>
       <MenuItem Header="Profiles" Name="mnuProfiles" IsEnabled="False">
@@ -90,9 +91,19 @@
             <TextBlock Grid.Row="1" Grid.Column="2" Margin="0,5,10,0" Name="lblMaxSamples" HorizontalAlignment="Right">
               10000
             </TextBlock>
-            <Border Grid.Row="2" Grid.ColumnSpan="3" Margin="10,0,10,0" >
-              <Slider Margin="0,-10,0,0" TickFrequency="50" TickPlacement="BottomRight" Minimum="10" Maximum="10000" Value="1024" Name="tkInScreen"></Slider>
-            </Border>
+              <Border Grid.Row="2" Grid.ColumnSpan="3" Margin="10,0,10,0" >
+                  <Slider Margin="0,-10,0,0"
+                          TickFrequency="50"
+                          TickPlacement="BottomRight"
+                          Minimum="10"
+                          Maximum="10000"
+                          Value="1024"
+                          Name="tkInScreen"
+                          ToolTip.ShowDelay="0"
+                          ToolTip.Placement="AnchorAndGravity"
+                          ToolTip.Tip="{Binding Value, RelativeSource={RelativeSource Self}, StringFormat='{}{0:F0}'}">
+                  </Slider>
+              </Border>
           </Grid>
           <StackPanel Margin="5,5,5,0" Background="#80383838">
             <TextBlock Margin="5,2,5,2">