[#37] Controls: Implement CheckComboBox and remove xctk

2024-06-12 16:29:57 +02:00
parent 6fc38b9db0
commit 4483eb6a69
16 changed files with 308 additions and 94 deletions
--- a/Elwig/Controls/CheckComboBox.cs
+++ b/Elwig/Controls/CheckComboBox.cs
@ -0,0 +1,106 @@
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Elwig.Controls {
+    public class CheckComboBox : ListBox {
+
+        public static readonly DependencyProperty DelimiterProperty = DependencyProperty.Register("Delimiter", typeof(string), typeof(CheckComboBox), new FrameworkPropertyMetadata(", "));
+        public string Delimiter {
+            get => (string)GetValue(DelimiterProperty);
+            set => SetValue(DelimiterProperty, value);
+        }
+
+        public static readonly DependencyProperty AllItemsSelectedContentProperty = DependencyProperty.Register("AllItemsSelectedContent", typeof(string), typeof(CheckComboBox), new FrameworkPropertyMetadata("All"));
+        public string AllItemsSelectedContent {
+            get => (string)GetValue(AllItemsSelectedContentProperty);
+            set => SetValue(AllItemsSelectedContentProperty, value);
+        }
+
+        public static readonly DependencyProperty IsSelectAllActiveProperty = DependencyProperty.Register("IsSelectAllActive", typeof(bool), typeof(CheckComboBox), new FrameworkPropertyMetadata(false));
+        public bool IsSelectAllActive {
+            get => (bool)GetValue(IsSelectAllActiveProperty);
+            set => SetValue(IsSelectAllActiveProperty, value);
+        }
+
+        public static readonly DependencyProperty SelectAllContentProperty = DependencyProperty.Register("SelectAllContent", typeof(string), typeof(CheckComboBox), new FrameworkPropertyMetadata("All"));
+        public string SelectAllContent {
+            get => (string)GetValue(SelectAllContentProperty);
+            set => SetValue(SelectAllContentProperty, value);
+        }
+
+        public static readonly DependencyProperty AllItemsSelectedProperty = DependencyProperty.Register("AllItemsSelected", typeof(bool?), typeof(CheckComboBox), new FrameworkPropertyMetadata(false));
+        public bool? AllItemsSelected {
+            get => (bool?)GetValue(AllItemsSelectedProperty);
+            set => SetValue(AllItemsSelectedProperty, value);
+        }
+
+        public static readonly DependencyProperty IsDropDownOpenProperty = DependencyProperty.Register("IsDropDownOpen", typeof(bool), typeof(CheckComboBox), new FrameworkPropertyMetadata(false));
+        public bool IsDropDownOpen {
+            get => (bool)GetValue(IsDropDownOpenProperty);
+            set => SetValue(IsDropDownOpenProperty, value);
+        }
+
+        public static readonly DependencyProperty MaxDropDownHeightProperty = DependencyProperty.Register("MaxDropDownHeight", typeof(double), typeof(CheckComboBox), new FrameworkPropertyMetadata(ComboBox.MaxDropDownHeightProperty.DefaultMetadata.DefaultValue));
+        public double MaxDropDownHeight {
+            get => (double)GetValue(MaxDropDownHeightProperty);
+            set => SetValue(MaxDropDownHeightProperty, value);
+        }
+
+        static CheckComboBox() {
+            DefaultStyleKeyProperty.OverrideMetadata(typeof(CheckComboBox), new FrameworkPropertyMetadata(typeof(CheckComboBox)));
+        }
+
+        private TextBlock TextBox;
+
+        public CheckComboBox() {
+            SelectionMode = SelectionMode.Multiple;
+        }
+
+        public override void OnApplyTemplate() {
+            TextBox = (GetTemplateChild("TextBox") as TextBlock)!;
+            var button = GetTemplateChild("Button") as Button;
+            button!.Click += Button_MouseDown;
+            var item = GetTemplateChild("SelectAllItem") as ListBoxItem;
+            item!.PreviewMouseDown += SelectAllItem_MouseDown;
+            SelectionChanged += OnSelectionChanged;
+            IsEnabledChanged += OnIsEnabledChanged;
+            base.OnApplyTemplate();
+        }
+
+        private void Button_MouseDown(object sender, RoutedEventArgs evt) {
+            IsDropDownOpen = !IsDropDownOpen;
+        }
+
+        private void SelectAllItem_MouseDown(object sender, RoutedEventArgs evt) {
+            if (AllItemsSelected == false) {
+                SelectAll();
+            } else {
+                UnselectAll();
+            }
+            evt.Handled = true;
+        }
+
+        private void OnSelectionChanged(object sender, SelectionChangedEventArgs evt) {
+            var dmp = DisplayMemberPath != null && DisplayMemberPath != "" ? DisplayMemberPath : null;
+            if (SelectedItems.Count == ItemsSource.Cast<object>().Count() && AllItemsSelectedContent != null) {
+                TextBox.Text = AllItemsSelectedContent;
+                AllItemsSelected = true;
+            } else if (SelectedItems.Count == 0) {
+                TextBox.Text = "";
+                AllItemsSelected = false;
+            } else {
+                TextBox.Text = string.Join(Delimiter,
+                    dmp == null ? SelectedItems.Cast<object>() :
+                    SelectedItems.Cast<object>()
+                        .Select(i => i.GetType().GetProperty(dmp)?.GetValue(i))
+                );
+                AllItemsSelected = null;
+            }
+        }
+
+        private void OnIsEnabledChanged(object sender, DependencyPropertyChangedEventArgs evt) {
+            if (!IsEnabled) IsDropDownOpen = false;
+        }
+    }
+}