MainWindow.xaml

<Window x:Class="Trees_CourseProject.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:Trees_CourseProject"
        mc:Ignorable="d"
        Title="MainWindow" Width="1080" Height="720" WindowStartupLocation="CenterScreen">

    <Grid>
        <!-- Добавленный TabControl -->
        <TabControl x:Name="MainTabControl" Grid.Row="0" BorderThickness="0">

            <!-- Вкладка 1 -->
            <TabItem Header="Tab 1">
                <!-- Содержимое первой вкладки -->
                <!-- Оставшаяся часть, которая была внутри Grid -->
                <Grid Grid.Row="1">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>

                    <!-- Левая колонка для меню выбора типа дерева и ввода узлов -->
                    <StackPanel Grid.Column="0" Margin="10">
                        <!-- Меню выбора типа дерева -->
                        <ComboBox x:Name="TreeTypeComboBox" Margin="0,0,0,10" SelectionChanged="TreeTypeComboBox_SelectionChanged">
                            <ComboBoxItem Content="Бинарное дерево поиска"/>
                            <ComboBoxItem Content="AVL-дерево"/>
                            <ComboBoxItem Content="Красно-черное дерево"/>
                        </ComboBox>

                        <!-- Ввод узла дерева и действия с ним -->
                        <TextBox x:Name="nodeInputTextBox" Margin="0,0,0,10" TextChanged="TextBox_TextChanged">
                            <TextBox.Style>
                                <Style TargetType="TextBox">
                                    <Style.Triggers>
                                        <Trigger Property="IsFocused" Value="True">
                                            <Setter Property="Foreground" Value="Black"/>
                                        </Trigger>
                                        <Trigger Property="IsFocused" Value="False">
                                            <Setter Property="Foreground" Value="LightGray"/>
                                        </Trigger>
                                    </Style.Triggers>
                                </Style>
                            </TextBox.Style>
                        </TextBox>

                        <Button Content="Добавить" Margin="0,0,0,5" Click="AddButton_Click"/>
                        <Button Content="Удалить" Margin="0,0,0,5" Click="DeleteButton_Click"/>
                        <Button Content="Поиск" Margin="0,0,0,5" Click="SearchButton_Click"/>
                    </StackPanel>

                    <!-- Правая колонка для отрисовки дерева -->
                    <Canvas x:Name="canvas" Grid.Column="1" Margin="10"/>
                </Grid>
            </TabItem>

            <!-- Вкладка стартового главного меню -->
            <TabItem x:Name="StartUpMenu">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">StartUpMenu</TextBlock>
                    </StackPanel>
                </TabItem.Header>
                <Grid>
                    <Grid.Background>
                        <ImageBrush ImageSource="StartUpMenuImage.jpg" Stretch="Fill"/>
                    </Grid.Background>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <!-- Меню -->
                    <TextBlock Text="МЕНЮ" Margin="0,75,0,50" FontSize="48" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Aqua">
                        <TextBlock.Effect>
                            <DropShadowEffect/>
                        </TextBlock.Effect>
                    </TextBlock>
                    <!-- Кнопка "Деревья" -->
                    <Button x:Name="TreesButton" Content="Деревья" Margin="0,70,0,20" Grid.Row="1" Width="200" Height="50" FontSize="24" Background="CornflowerBlue" BorderThickness="3" HorizontalAlignment="Center" Click="TreesButton_Click" FontWeight="Bold">
                        <Button.Style>
                            <Style TargetType="Button">
                                <Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="True">
                                        <Trigger.EnterActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="220" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="-20,70,-20,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.EnterActions>
                                        <Trigger.ExitActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="200" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="0,70,0,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.ExitActions>
                                    </Trigger>
                                </Style.Triggers>
                            </Style>
                        </Button.Style>
                    </Button>
                    <!-- Кнопка "Настройки" -->
                    <Button x:Name="SettingsButton" Content="Настройки" Margin="0,20,0,20" Grid.Row="2" Width="200" Height="50" FontSize="24" Background="CornflowerBlue" BorderThickness="3" HorizontalAlignment="Center" Click="SettingsButton_Click" FontWeight="Bold">
                        <Button.Style>
                            <Style TargetType="Button">
                                <Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="True">
                                        <Trigger.EnterActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="220" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="-20,20,-20,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.EnterActions>
                                        <Trigger.ExitActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="200" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="0,20,0,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.ExitActions>
                                    </Trigger>
                                </Style.Triggers>
                            </Style>
                        </Button.Style>
                    </Button>
                    <!-- Кнопка "Выход" -->
                    <Button x:Name="ExitButton" Content="Выход" Margin="0,20,0,20" Grid.Row="3" Width="200" Height="50" FontSize="24" Background="CornflowerBlue" BorderThickness="3" HorizontalAlignment="Center" Click="ExitButton_Click" FontWeight="Bold">
                        <Button.Style>
                            <Style TargetType="Button">
                                <Style.Triggers>
                                    <Trigger Property="IsMouseOver" Value="True">
                                        <Trigger.EnterActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="220" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="-20,20,-20,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.EnterActions>
                                        <Trigger.ExitActions>
                                            <BeginStoryboard>
                                                <Storyboard>
                                                    <DoubleAnimation Storyboard.TargetProperty="Width" To="200" Duration="0:0:0.2"/>
                                                    <ThicknessAnimation Storyboard.TargetProperty="Margin" To="0,20,0,20" Duration="0:0:0.2"/>
                                                </Storyboard>
                                            </BeginStoryboard>
                                        </Trigger.ExitActions>
                                    </Trigger>
                                </Style.Triggers>
                            </Style>
                        </Button.Style>
                    </Button>
                </Grid>
            </TabItem>

                <!-- Вкладка меню выбора деревьев -->
            <TabItem x:Name="TreeSelectionMenu">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">TreeSelectionMenu</TextBlock>
                    </StackPanel>
                </TabItem.Header>
                <Grid>
                    <Grid.Background>
                        <ImageBrush ImageSource="TreeSelectionMenuImage.jpeg" Stretch="Fill"/>
                    </Grid.Background>

                    <Grid.RowDefinitions>
                        <RowDefinition Height="100"/>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="100"/>
                    </Grid.RowDefinitions>

                    <TextBlock Text="Выбор дерева" Grid.Row="0" Margin ="0,0,0,15" FontSize="48" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Aqua" FontWeight="Bold">
                        <TextBlock.Effect>
                            <DropShadowEffect/>
                        </TextBlock.Effect>
                    </TextBlock>

                    <StackPanel Grid.Row="1" Orientation="Horizontal">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="1*"/>
                                <ColumnDefinition Width="1*"/>
                                <ColumnDefinition Width="1*"/>
                            </Grid.ColumnDefinitions>

                            <Button x:Name="BSTreeButton" Grid.Column="0" Width="200" Height="250" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="80" FontSize="22" BorderBrush="Black" BorderThickness="5" Click="BSTreeButton_Click">
                                <TextBlock TextAlignment="Center" Foreground="Black" FontWeight="Bold" FontSize="24"> Бинарное <LineBreak/> дерево поиска </TextBlock>
                                <Button.Background>
                                    <VisualBrush>
                                        <VisualBrush.Visual>
                                            <!-- Изображение с размытием -->
                                            <Image Source="BinarySearchTree.png">
                                                <Image.Effect>
                                                    <!-- Фильтр размытия для изображения -->
                                                    <BlurEffect Radius="10" KernelType="Box"/>
                                                </Image.Effect>
                                            </Image>
                                        </VisualBrush.Visual>
                                    </VisualBrush>
                                </Button.Background>
                            </Button>

                            <Button x:Name="AVLtreeButton" Content="АВЛ - дерево" Grid.Column="1" Width="200" Height="250" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="80" FontSize="22" FontWeight="Bold" BorderBrush="Black" BorderThickness="5" Click="AVLtreeButton_Click" >
                                <Button.Background>
                                    <VisualBrush>
                                        <VisualBrush.Visual>
                                            <!-- Изображение с размытием -->
                                            <Image Source="AVLtree.png">
                                                <Image.Effect>
                                                    <!-- Фильтр размытия для изображения -->
                                                    <BlurEffect Radius="15" KernelType="Box"/>
                                                </Image.Effect>
                                            </Image>
                                        </VisualBrush.Visual>
                                    </VisualBrush>
                                </Button.Background>
                            </Button>

                            <Button x:Name="RBtreeButton" Content="КЧ - дерево" Grid.Column="2" Width="200" Height="250" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="80" FontSize="22" FontWeight="Bold" BorderBrush="Black" BorderThickness="5" Foreground="Blue" Click="RBtreeButton_Click">
                                <Button.Background>
                                    <VisualBrush>
                                        <VisualBrush.Visual>
                                            <!-- Изображение с размытием -->
                                            <Image Source="RBtree.png">
                                                <Image.Effect>
                                                    <!-- Фильтр размытия для изображения -->
                                                    <BlurEffect Radius="15" KernelType="Box"/>
                                                </Image.Effect>
                                            </Image>
                                        </VisualBrush.Visual>
                                    </VisualBrush>
                                </Button.Background>
                            </Button>
                        </Grid>
                    </StackPanel>

                    <Button x:Name="BackToMenuButton" Grid.Row="2" Content="Назад" HorizontalAlignment="Center" Width="200" Height="50" BorderBrush="Black" BorderThickness="3" FontSize="18" FontWeight="Bold" Click="BackToMenuButton_Click"/>
                </Grid>
            </TabItem>

                <!-- Меню выбора деревьев / бинарное дерево поиска -->
            <TabItem x:Name="BSTree">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">BSTree</TextBlock>
                    </StackPanel>
                </TabItem.Header>

                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="1*"/>
                        <ColumnDefinition Width="7*"/>
                    </Grid.ColumnDefinitions>
                    <GridSplitter Grid.Row="1" Grid.ColumnSpan="3" HorizontalAlignment="Stretch" VerticalAlignment="Top" Background="LightGoldenrodYellow" ShowsPreview="true" ResizeDirection="Rows" Height="50"/>
                    <StackPanel Grid.Column="0" Background="LightGray">
                        <TextBlock Text="Бинарное дерево поиска" Grid.Row="0" Margin="0,20,0,15" FontSize="10" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBlock Text="Узел" Grid.Row="0" Margin="0,5,0,10" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBox x:Name="BSTnodeInputTextBox" Margin="0,0,0,10">
                            <TextBox.Style>
                                <Style TargetType="TextBox">
                                    <Style.Triggers>
                                        <Trigger Property="IsFocused" Value="True">
                                            <Setter Property="Foreground" Value="Black"/>
                                        </Trigger>
                                        <Trigger Property="IsFocused" Value="False">
                                            <Setter Property="Foreground" Value="LightGray"/>
                                        </Trigger>
                                    </Style.Triggers>
                                </Style>
                            </TextBox.Style>
                        </TextBox>
                        <Button x:Name="BSTreeAdd" Content="Добавить" Margin="5,0,5,5" Click="BSTreeAdd_Click"/>
                        <Button x:Name="BSTreeDelete" Content="Удалить" Margin="5,0,5,5" Click="BSTreeDelete_Click"/>
                        <Button x:Name="BStreeSearch" Content="Поиск" Margin="5,0,5,5" Click="BStreeSearch_Click"/>
                    </StackPanel>
                    <Canvas x:Name="BSTcanvas" Grid.Column="1" Background="Transparent" ClipToBounds="True">
                        <!-- Здесь будет отрисовываться дерево -->
                    </Canvas>
                    <ScrollViewer Grid.Column="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                        <ScrollViewer.Content>
                            <Canvas x:Name="BSTcanvasContainer" Background="Transparent" ClipToBounds="True"/>
                        </ScrollViewer.Content>
                    </ScrollViewer>
                </Grid>

            </TabItem>
                <!-- Меню выбора деревьев / КЧ-дерево -->
            <TabItem x:Name="RBtree">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">RBtree</TextBlock>
                    </StackPanel>
                </TabItem.Header>

                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="1*"/>
                        <ColumnDefinition Width="7*"/>
                    </Grid.ColumnDefinitions>
                    <GridSplitter Grid.Row="1" Grid.ColumnSpan="3" HorizontalAlignment="Stretch" VerticalAlignment="Top" Background="LightGoldenrodYellow" ShowsPreview="true" ResizeDirection="Rows" Height="50"/>
                    <StackPanel Grid.Column="0" Background="LightGray">
                        <TextBlock Text="КЧ-дерево" Grid.Row="0" Margin="0,20,0,15" FontSize="10" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBlock Text="Узел" Grid.Row="0" Margin="0,5,0,10" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBox x:Name="RBnodeInputTextBox" Margin="0,0,0,10">
                            <TextBox.Style>
                                <Style TargetType="TextBox">
                                    <Style.Triggers>
                                        <Trigger Property="IsFocused" Value="True">
                                            <Setter Property="Foreground" Value="Black"/>
                                        </Trigger>
                                        <Trigger Property="IsFocused" Value="False">
                                            <Setter Property="Foreground" Value="LightGray"/>
                                        </Trigger>
                                    </Style.Triggers>
                                </Style>
                            </TextBox.Style>
                        </TextBox>
                        <Button x:Name="RBreeAdd" Content="Добавить" Margin="5,0,5,5" Click="RBreeAdd_Click"/>
                        <Button x:Name="RBreeDelete" Content="Удалить" Margin="5,0,5,5" Click="RBreeDelete_Click"/>
                        <Button x:Name="RBtreeSearch" Content="Поиск" Margin="5,0,5,5" Click="RBtreeSearch_Click"/>
                    </StackPanel>
                    <Canvas x:Name="RBcanvas" Grid.Column="1" Background="Transparent" ClipToBounds="True">
                        <!-- Здесь будет отрисовываться дерево -->
                    </Canvas>
                    <ScrollViewer Grid.Column="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                        <ScrollViewer.Content>
                            <Canvas x:Name="RBcanvasContainer" Background="Transparent" ClipToBounds="True"/>
                        </ScrollViewer.Content>
                    </ScrollViewer>
                </Grid>
            </TabItem>
                <!-- Меню выбора деревьев / АВЛ-дерево -->
            <TabItem x:Name="AVLtree">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">AVLtree</TextBlock>
                    </StackPanel>
                </TabItem.Header>

                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="1*"/>
                        <ColumnDefinition Width="7*"/>
                    </Grid.ColumnDefinitions>
                    <GridSplitter Grid.Row="1" Grid.ColumnSpan="3" HorizontalAlignment="Stretch" VerticalAlignment="Top" Background="LightGoldenrodYellow" ShowsPreview="true" ResizeDirection="Rows" Height="50"/>
                    <StackPanel Grid.Column="0" Background="LightGray">
                        <TextBlock Text="АВЛ-дерево" Grid.Row="0" Margin="0,20,0,15" FontSize="10" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBlock Text="Узел" Grid.Row="0" Margin="0,5,0,10" FontSize="14" HorizontalAlignment="Center" VerticalAlignment="Center" FontWeight="Bold"/>
                        <TextBox x:Name="AVLnodeInputTextBox" Margin="0,0,0,10">
                            <TextBox.Style>
                                <Style TargetType="TextBox">
                                    <Style.Triggers>
                                        <Trigger Property="IsFocused" Value="True">
                                            <Setter Property="Foreground" Value="Black"/>
                                        </Trigger>
                                        <Trigger Property="IsFocused" Value="False">
                                            <Setter Property="Foreground" Value="LightGray"/>
                                        </Trigger>
                                    </Style.Triggers>
                                </Style>
                            </TextBox.Style>
                        </TextBox>
                        <Button x:Name="AVLtreeAdd" Content="Добавить" Margin="5,0,5,5" Click="AVLtreeAdd_Click"/>
                        <Button x:Name="AVLtreeDelete" Content="Удалить" Margin="5,0,5,5" Click="AVLtreeDelete_Click"/>
                        <Button x:Name="AVLtreeSearch" Content="Поиск" Margin="5,0,5,5" Click="AVLtreeSearch_Click"/>
                    </StackPanel>
                    <Canvas x:Name="AVLcanvas" Grid.Column="1" Background="Transparent" ClipToBounds="True">
                        <!-- Здесь будет отрисовываться дерево -->
                    </Canvas>
                    <ScrollViewer Grid.Column="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                        <ScrollViewer.Content>
                            <Canvas x:Name="AVLcanvasContainer" Background="Transparent" ClipToBounds="True"/>
                        </ScrollViewer.Content>
                    </ScrollViewer>
                </Grid>
            </TabItem>
                <!-- Главное меню / Настройки -->
            <TabItem x:Name="Settings">
                <TabItem.Header>
                    <StackPanel Orientation="Horizontal">
                        <Ellipse Height="10" Width="10" Fill="Black" />
                        <TextBlock Margin="3">Settings</TextBlock>
                    </StackPanel>
                </TabItem.Header>
            </TabItem>
        </TabControl>

    </Grid>
</Window>