Exemplo n.º 1
0
        protected override void OnTemplateApplied(TemplateAppliedEventArgs e)
        {
            TextView = e.NameScope.Find <TextView>("textView");

            LogicalChildren.Add(TextView);

            disposables.Add(TextDocumentProperty.Changed.Subscribe(args =>
            {
                if (args.NewValue != null)
                {
                    // Todo unsubscribe these events.
                    TextDocument.Changing += (sender, ee) =>
                    {
                        TextDocument?.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));

                        if (BeforeTextChangedCommand != null)
                        {
                            BeforeTextChangedCommand.Execute(null);
                        }
                    };

                    TextDocument.Changed += (sender, ee) =>
                    {
                        InvalidateVisual();

                        LineHeight = TextView.CharSize.Height;

                        textChangedDelayTimer.Stop();
                        textChangedDelayTimer.Start();
                    };
                }
            }));
        }
Exemplo n.º 2
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        /// <summary>
        /// Creates a new code completion window.
        /// </summary>
        public CompletionWindow(TextArea textArea) : base(textArea, (textArea.Parent.VisualRoot as Window).PlatformImpl.CreatePopup())
        {
            CompletionList = new CompletionList();
            // keep height automatic
            CloseAutomatically = true;
            MaxHeight          = 225;
            Width   = 175;
            Content = CompletionList;
            // prevent user from resizing window to 0x0
            MinHeight = 15;
            MinWidth  = 30;

            _toolTipContent = new ContentControl();
            _toolTipContent.Classes.Add("ToolTip");

            _toolTip = new PopupWithCustomPosition
            {
                StaysOpen       = false,
                PlacementTarget = this,
                PlacementMode   = PlacementMode.Right,
                Child           = _toolTipContent,
            };

            LogicalChildren.Add(_toolTip);

            //_toolTip.Closed += (o, e) => ((Popup)o).Child = null;

            AttachEvents();
        }
Exemplo n.º 3
0
        /// <summary>
        /// Called when new containers are materialized for the <see cref="ItemsControl"/> by its
        /// <see cref="ItemContainerGenerator"/>.
        /// </summary>
        /// <param name="e">The details of the containers.</param>
        protected virtual void OnContainersMaterialized(ItemContainerEventArgs e)
        {
            foreach (var container in e.Containers)
            {
                // If the item is its own container, then it will be added to the logical tree when
                // it was added to the Items collection.
                if (container.ContainerControl != null && container.ContainerControl != container.Item)
                {
                    if (ItemContainerGenerator.ContainerType == null)
                    {
                        var containerControl = container.ContainerControl as ContentPresenter;

                        if (containerControl != null)
                        {
                            ((ISetLogicalParent)containerControl).SetParent(this);
                            containerControl.UpdateChild();

                            if (containerControl.Child != null)
                            {
                                LogicalChildren.Add(containerControl.Child);
                            }
                        }
                    }
                    else
                    {
                        LogicalChildren.Add(container.ContainerControl);
                    }
                }
            }
        }
Exemplo n.º 4
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 public ColumnHeader(Column column)
 {
     Column    = column;
     TextBlock = new TextBlock {
         Margin = new Thickness(1.0), Text = Column.FieldName
     };
     LogicalChildren.Add(TextBlock);
     VisualChildren.Add(TextBlock);
 }
Exemplo n.º 5
0
        /// <summary>
        /// Updates the <see cref="Child"/> control based on the control's <see cref="Content"/>.
        /// </summary>
        /// <remarks>
        /// Usually the <see cref="Child"/> control is created automatically when
        /// <see cref="ApplyTemplate"/> is called; however for this to happen, the control needs to
        /// be attached to a logical tree (if the control is not attached to the logical tree, it
        /// is reasonable to expect that the DataTemplates needed for the child are not yet
        /// available). This method forces the <see cref="Child"/> control's creation at any point,
        /// and is particularly useful in unit tests.
        /// </remarks>
        public void UpdateChild()
        {
            var content  = Content;
            var oldChild = Child;
            var newChild = CreateChild();

            // Remove the old child if we're not recycling it.
            if (oldChild != null && newChild != oldChild)
            {
                VisualChildren.Remove(oldChild);
            }

            // Set the DataContext if the data isn't a control.
            if (!(content is IControl))
            {
                DataContext = content;
            }
            else
            {
                ClearValue(DataContextProperty);
            }

            // Update the Child.
            if (newChild == null)
            {
                Child = null;
            }
            else if (newChild != oldChild)
            {
                ((ISetInheritanceParent)newChild).SetParent(this);

                Child = newChild;

                if (oldChild?.Parent == this)
                {
                    LogicalChildren.Remove(oldChild);
                }

                if (newChild.Parent == null)
                {
                    var templatedLogicalParent = TemplatedParent as ILogical;

                    if (templatedLogicalParent != null)
                    {
                        ((ISetLogicalParent)newChild).SetParent(templatedLogicalParent);
                    }
                    else
                    {
                        LogicalChildren.Add(newChild);
                    }
                }

                VisualChildren.Add(newChild);
            }

            _createdChild = true;
        }
Exemplo n.º 6
0
        private Ellipse CreateMarker()
        {
            var marker = new Ellipse();

            marker[~Shape.FillProperty]  = this[~MarkerBrushProperty];
            marker[~ToolTip.TipProperty] = this[~MessageProperty];
            VisualChildren.Add(marker);
            LogicalChildren.Add(marker);
            return(marker);
        }
Exemplo n.º 7
0
        private Control CreateMarker()
        {
            var marker = new Image();

            marker.PointerPressed        += (o, e) => { e.Handled = true; MarkerPointerDown?.Invoke(o, e); };
            marker[~Image.SourceProperty] = this[~MarkerImageProperty];
            marker[~ToolTip.TipProperty]  = this[~MessageProperty];
            VisualChildren.Add(marker);
            LogicalChildren.Add(marker);
            return(marker);
        }
Exemplo n.º 8
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        private void InitializeComponent()
        {
            _viewer = new ScrollViewer()
            {
                Padding = new Thickness(5),
                HorizontalScrollBarVisibility = ScrollBarVisibility.Disabled,
                VerticalScrollBarVisibility   = ScrollBarVisibility.Auto,
            };

            VisualChildren.Add(_viewer);
            LogicalChildren.Add(_viewer);
        }
Exemplo n.º 9
0
        /// <summary>
        /// Called when the <see cref="Child"/> property changes.
        /// </summary>
        /// <param name="e">The event args.</param>
        private void ChildChanged(AvaloniaPropertyChangedEventArgs e)
        {
            LogicalChildren.Clear();

            ((ISetLogicalParent)e.OldValue)?.SetParent(null);

            if (e.NewValue != null)
            {
                ((ISetLogicalParent)e.NewValue).SetParent(this);
                LogicalChildren.Add((ILogical)e.NewValue);
            }
        }
Exemplo n.º 10
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        private void HeaderChanged(AvaloniaPropertyChangedEventArgs e)
        {
            if (e.OldValue is ILogical oldChild)
            {
                LogicalChildren.Remove(oldChild);
            }

            if (e.NewValue is ILogical newChild)
            {
                LogicalChildren.Add(newChild);
            }
        }
Exemplo n.º 11
0
        /// <summary>
        /// Creates the <see cref="Panel"/>.
        /// </summary>
        private void CreatePanel()
        {
            Panel = ItemsPanel.Build();
            Panel.SetValue(TemplatedParentProperty, TemplatedParent);

            LogicalChildren.Clear();
            VisualChildren.Clear();
            LogicalChildren.Add(Panel);
            VisualChildren.Add(Panel);

            _createdPanel = true;
            var task = MoveToPage(-1, SelectedIndex);
        }
Exemplo n.º 12
0
        private Control CreateMarker()
        {
#pragma warning disable CS0618 // Type or member is obsolete
            var marker = new DrawingPresenter();
#pragma warning restore CS0618 // Type or member is obsolete
            marker.PointerPressed += (o, e) => { e.Handled = true; MarkerPointerDown?.Invoke(o, e); };
#pragma warning disable CS0618 // Type or member is obsolete
            marker[~DrawingPresenter.DrawingProperty] = this[~MarkerImageProperty];
#pragma warning restore CS0618 // Type or member is obsolete
            marker[~ToolTip.TipProperty] = this[~MessageProperty];
            VisualChildren.Add(marker);
            LogicalChildren.Add(marker);
            return(marker);
        }
        /// <summary>
        /// Called when the <see cref="Icon"/> property changes.
        /// </summary>
        /// <param name="e">The property change event.</param>
        private void IconChanged(AvaloniaPropertyChangedEventArgs e)
        {
            var oldValue = e.OldValue as ILogical;
            var newValue = e.NewValue as ILogical;

            if (oldValue != null)
            {
                LogicalChildren.Remove(oldValue);
            }

            if (newValue != null)
            {
                LogicalChildren.Add(newValue);
            }
        }
        /// <summary>
        /// Generates a new BreadcrumbItem out of the specified item.
        /// </summary>
        /// <param name="item">The item for which to create a new BreadcrumbItem.</param>
        /// <returns>Item, if item is a BreadcrumbItem, otherwhise a newly created BreadcrumbItem.</returns>
        public BreadcrumbItem ContainerFromItem(object item)
        {
            BreadcrumbItem result = item as BreadcrumbItem;

            if (result == null)
            {
                result = CreateItem(item);
                if (result != null)
                {
                    LogicalChildren.Add(result);
                    result.ApplyTemplate();
                }
            }
            return(result);
        }
Exemplo n.º 15
0
        private void ButtonChanged(AvaloniaPropertyChangedEventArgs e)
        {
            var oldButton = (Button)e.OldValue;
            var newButton = (Button)e.NewValue;

            if (oldButton != null)
            {
                LogicalChildren.Remove(oldButton);
                VisualChildren.Remove(oldButton);
            }

            if (newButton != null)
            {
                LogicalChildren.Add(newButton);
                VisualChildren.Add(newButton);
            }
        }
Exemplo n.º 16
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        public void RecreateContent()
        {
            LogicalChildren.Clear();
            VisualChildren.Clear();

            GridBorderLines.Clear();
            for (int i = 0; i < 4; i++)
            {
                var line = new Line()
                {
                    Stroke = GridControl.BorderBrush, StrokeThickness = GridControl.BorderThickness
                };
                GridBorderLines.Add(line);
                LogicalChildren.Add(line);
                VisualChildren.Add(line);
            }

            ColumnHeaders.Clear();
            ColumnHeaderLines.Clear();
            for (int i = 0; i < GridControl.Columns.Count; i++)
            {
                GridControl.Columns[i].Index = i;
                var columnHeader = GridControl.Columns[i].CreateColumnHeader();
                ColumnHeaders.Add(columnHeader);
                LogicalChildren.Add(columnHeader);
                VisualChildren.Add(columnHeader);
                var line = new Line()
                {
                    Stroke = GridControl.VerticalLinesBrush, StrokeThickness = GridControl.VerticalLinesThickness
                };
                ColumnHeaderLines.Add(line);
                LogicalChildren.Add(line);
                VisualChildren.Add(line);
            }

            HorizontalHeaderLine = new Line()
            {
                Stroke = GridControl.HorizontalLinesBrush, StrokeThickness = GridControl.HorizontalLinesThickness
            };
            LogicalChildren.Add(HorizontalHeaderLine);
            VisualChildren.Add(HorizontalHeaderLine);

            CellsPanel.RecreateCells();
            LogicalChildren.Add(CellsPanel);
            VisualChildren.Add(CellsPanel);
        }
Exemplo n.º 17
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        protected override void OnDataContextChanged()
        {
            if (Content as ILogical != null)
            {
                LogicalChildren.Remove(Content as ILogical);
            }

            if (DataContext != null)
            {
                Content = ViewLocator.Build(DataContext);
            }

            if (Content as ILogical != null)
            {
                LogicalChildren.Add(Content as ILogical);
            }
        }
Exemplo n.º 18
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        protected override void OnTemplateApplied(TemplateAppliedEventArgs e)
        {
            marginContainer  = e.NameScope.Find <StackPanel>("marginsPanel");
            textSurface      = e.NameScope.Find <Rectangle>("textSurface");
            contentPresenter = e.NameScope.Find <ContentControl>("contentPresenter");

            foreach (var margin in Margins)
            {
                if (margin is ILogical)
                {
                    LogicalChildren.Add(margin as ILogical);
                }

                InstallMargin(margin);
            }

            collectionChangedDisposable = Observable.FromEventPattern <NotifyCollectionChangedEventArgs>(Margins, "CollectionChanged").Subscribe(o =>
            {
                switch (o.EventArgs.Action)
                {
                case NotifyCollectionChangedAction.Add:
                    foreach (var newItem in o.EventArgs.NewItems)
                    {
                        if (newItem as ILogical != null)
                        {
                            LogicalChildren.Add(newItem as ILogical);
                            InstallMargin(newItem as Control);
                        }
                    }
                    break;

                case NotifyCollectionChangedAction.Remove:
                    foreach (var oldItem in o.EventArgs.OldItems)
                    {
                        if (oldItem as ILogical != null)
                        {
                            LogicalChildren.Remove(oldItem as ILogical);
                            UninstallMargin(oldItem as Control);
                        }
                    }
                    break;
                }
            });
        }
Exemplo n.º 19
0
        /// <summary>
        /// Called when the <see cref="Child"/> property changes.
        /// </summary>
        /// <param name="e">The event args.</param>
        private void ChildChanged(AvaloniaPropertyChangedEventArgs e)
        {
            var oldChild = (Control)e.OldValue;
            var newChild = (Control)e.NewValue;

            if (oldChild != null)
            {
                ((ISetLogicalParent)oldChild).SetParent(null);
                LogicalChildren.Clear();
                VisualChildren.Remove(oldChild);
            }

            if (newChild != null)
            {
                ((ISetLogicalParent)newChild).SetParent(this);
                VisualChildren.Add(newChild);
                LogicalChildren.Add(newChild);
            }
        }
Exemplo n.º 20
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        protected override void OnDataContextEndUpdate()
        {
            base.OnDataContextEndUpdate();

            if (Content as ILogical != null)
            {
                LogicalChildren.Remove(Content as ILogical);
            }

            if (DataContext != null)
            {
                Content = ViewLocator.Build(DataContext);
            }

            if (Content as ILogical != null)
            {
                LogicalChildren.Add(Content as ILogical);
            }
        }
Exemplo n.º 21
0
        /// <summary>
        /// Creates the <see cref="Panel"/> when <see cref="ApplyTemplate"/> is called for the first
        /// time.
        /// </summary>
        private void CreatePanel()
        {
            Panel = ItemsPanel.Build();
            Panel.SetValue(TemplatedParentProperty, TemplatedParent);

            LogicalChildren.Clear();
            VisualChildren.Clear();
            LogicalChildren.Add(Panel);
            VisualChildren.Add(Panel);

            _createdPanel = true;

            if (!IsHosted && _itemsSubscription == null && Items is INotifyCollectionChanged incc)
            {
                _itemsSubscription = incc.WeakSubscribe(ItemsCollectionChanged);
            }

            PanelCreated(Panel);
        }
Exemplo n.º 22
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        private void ThumbChanged(AvaloniaPropertyChangedEventArgs e)
        {
            var oldThumb = (Thumb)e.OldValue;
            var newThumb = (Thumb)e.NewValue;

            if (oldThumb != null)
            {
                oldThumb.DragDelta -= ThumbDragged;

                LogicalChildren.Remove(oldThumb);
                VisualChildren.Remove(oldThumb);
            }

            if (newThumb != null)
            {
                newThumb.DragDelta += ThumbDragged;
                LogicalChildren.Add(newThumb);
                VisualChildren.Add(newThumb);
            }
        }
Exemplo n.º 23
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        private void ThumbChanged(PerspexPropertyChangedEventArgs e)
        {
            var oldThumb = (Thumb)e.OldValue;
            var newThumb = (Thumb)e.NewValue;

            if (oldThumb != null)
            {
                oldThumb.DragDelta -= ThumbDragged;
            }

            LogicalChildren.Clear();
            VisualChildren.Clear();

            if (newThumb != null)
            {
                newThumb.DragDelta += ThumbDragged;
                LogicalChildren.Add(newThumb);
                VisualChildren.Add(newThumb);
            }
        }
Exemplo n.º 24
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        /// <summary>
        /// Creates the <see cref="Panel"/> when <see cref="ApplyTemplate"/> is called for the first
        /// time.
        /// </summary>
        protected virtual void CreatePanel()
        {
            Panel = ItemsPanel.Build();
            Panel.SetValue(TemplatedParentProperty, TemplatedParent);

            LogicalChildren.Clear();
            VisualChildren.Clear();
            LogicalChildren.Add(Panel);
            VisualChildren.Add(Panel);

            _createdPanel = true;

            INotifyCollectionChanged incc = Items as INotifyCollectionChanged;

            if (incc != null)
            {
                incc.CollectionChanged += ItemsCollectionChanged;
            }

            ItemsChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
        }
Exemplo n.º 25
0
        /// <summary>
        /// Creates the <see cref="Panel"/> when <see cref="ApplyTemplate"/> is called for the first
        /// time.
        /// </summary>
        private void CreatePanel()
        {
            Panel = ItemsPanel.Build();
            Panel.SetValue(TemplatedParentProperty, TemplatedParent);

            if (!Panel.IsSet(KeyboardNavigation.DirectionalNavigationProperty))
            {
                KeyboardNavigation.SetDirectionalNavigation(
                    (InputElement)Panel,
                    KeyboardNavigationMode.Contained);
            }

            LogicalChildren.Clear();
            VisualChildren.Clear();
            LogicalChildren.Add(Panel);
            VisualChildren.Add(Panel);

            KeyboardNavigation.SetTabNavigation(
                (InputElement)Panel,
                KeyboardNavigation.GetTabNavigation(this));
            _createdPanel = true;
            CreateItemsAndListenForChanges(Items);
        }
Exemplo n.º 26
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        protected override Size ArrangeOverride(Size finalSize)
        {
            int firstRow = Cells.GetInitialRow();

            foreach (var cell in Cells.GetVisibleCells())
            {
                double width = AccumulatedColumnWidths[cell.Column.Index + 1] -
                               AccumulatedColumnWidths[cell.Column.Index] - GridControl.VerticalLinesThickness;
                cell.Arrange(new Rect(AccumulatedColumnWidths[cell.Column.Index],
                                      AccumulatedRowHeights[cell.Row - firstRow],
                                      width, cell.DesiredSize.Height));
            }

            UpdateGridLines();
            ScrollBar.Arrange(new Rect(finalSize.Width - ScrollBar.Width, 0.0, ScrollBar.Width, finalSize.Height));
            return(finalSize);

            void UpdateGridLines()
            {
                int lastAccumulatedColumnWidthsIndex = AccumulatedColumnWidths.Count - 1;

                while (ColumnLines.Count > lastAccumulatedColumnWidthsIndex)
                {
                    var columnLine = ColumnLines[ColumnLines.Count - 1];
                    ColumnLines.Remove(columnLine);
                    LogicalChildren.Remove(columnLine);
                    VisualChildren.Remove(columnLine);
                }
                while (lastAccumulatedColumnWidthsIndex > ColumnLines.Count)
                {
                    Line columnLine = new Line();
                    columnLine.Stroke          = GridControl.VerticalLinesBrush;
                    columnLine.StrokeThickness = GridControl.VerticalLinesThickness;
                    ColumnLines.Add(columnLine);
                    LogicalChildren.Add(columnLine);
                    VisualChildren.Add(columnLine);
                }

                int lastAccumulatedRowHeightsIndex = AccumulatedRowHeights.Count(rh => !Double.IsNaN(rh)) - 1;

                while (RowLines.Count > lastAccumulatedRowHeightsIndex)
                {
                    var rowLine = RowLines[RowLines.Count - 1];
                    RowLines.Remove(rowLine);
                    LogicalChildren.Remove(rowLine);
                    VisualChildren.Remove(rowLine);
                }

                while (lastAccumulatedRowHeightsIndex > RowLines.Count)
                {
                    Line rowLine = new Line();
                    rowLine.Stroke          = GridControl.HorizontalLinesBrush;
                    rowLine.StrokeThickness = GridControl.HorizontalLinesThickness;
                    RowLines.Add(rowLine);
                    LogicalChildren.Add(rowLine);
                    VisualChildren.Add(rowLine);
                }

                for (int i = 0; i < RowLines.Count; i++)
                {
                    double y = AccumulatedRowHeights[i + 1] - GridControl.HorizontalLinesThickness / 2.0;
                    RowLines[i].StartPoint = new Point(0.0, y);
                    RowLines[i].EndPoint   = new Point(AccumulatedColumnWidths[lastAccumulatedColumnWidthsIndex], y);
                }

                for (int i = 0; i < ColumnLines.Count; i++)
                {
                    double x = AccumulatedColumnWidths[i + 1] - GridControl.VerticalLinesThickness / 2.0;
                    ColumnLines[i].StartPoint = new Point(x, 0.0);
                    ColumnLines[i].EndPoint   = new Point(x, AccumulatedRowHeights[lastAccumulatedRowHeightsIndex]);
                }

                foreach (var line in RowLines.Concat(ColumnLines))
                {
                    line.InvalidateMeasure();
                    line.Measure(Size.Infinity);
                }
            }
        }
Exemplo n.º 27
0
        /// <summary>
        /// Updates the <see cref="Child"/> control based on the control's <see cref="Content"/>.
        /// </summary>
        /// <remarks>
        /// Usually the <see cref="Child"/> control is created automatically when
        /// <see cref="ApplyTemplate"/> is called; however for this to happen, the control needs to
        /// be attached to a logical tree (if the control is not attached to the logical tree, it
        /// is reasonable to expect that the DataTemplates needed for the child are not yet
        /// available). This method forces the <see cref="Child"/> control's creation at any point,
        /// and is particularly useful in unit tests.
        /// </remarks>
        public void UpdateChild()
        {
            var content  = Content;
            var oldChild = Child;
            var newChild = content as IControl;

            if (content != null && newChild == null)
            {
                // We have content and it isn't a control, so first try to recycle the existing
                // child control to display the new data by querying if the template that created
                // the child can recycle items and that it also matches the new data.
                if (oldChild != null &&
                    _dataTemplate != null &&
                    _dataTemplate.SupportsRecycling &&
                    _dataTemplate.Match(content))
                {
                    newChild = oldChild;
                }
                else
                {
                    // We couldn't recycle an existing control so find a data template for the data
                    // and use it to create a control.
                    _dataTemplate = this.FindDataTemplate(content, ContentTemplate) ?? FuncDataTemplate.Default;
                    newChild      = _dataTemplate.Build(content);

                    // Try to give the new control its own name scope.
                    var controlResult = newChild as Control;

                    if (controlResult != null)
                    {
                        NameScope.SetNameScope(controlResult, new NameScope());
                    }
                }
            }
            else
            {
                _dataTemplate = null;
            }

            // Remove the old child if we're not recycling it.
            if (oldChild != null && newChild != oldChild)
            {
                VisualChildren.Remove(oldChild);
            }

            // Set the DataContext if the data isn't a control.
            if (!(content is IControl))
            {
                DataContext = content;
            }

            // Update the Child.
            if (newChild == null)
            {
                Child = null;
            }
            else if (newChild != oldChild)
            {
                ((ISetInheritanceParent)newChild).SetParent(this);

                Child = newChild;

                if (oldChild?.Parent == this)
                {
                    LogicalChildren.Remove(oldChild);
                }

                if (newChild.Parent == null)
                {
                    var templatedLogicalParent = TemplatedParent as ILogical;

                    if (templatedLogicalParent != null)
                    {
                        ((ISetLogicalParent)newChild).SetParent(templatedLogicalParent);
                    }
                    else
                    {
                        LogicalChildren.Add(newChild);
                    }
                }

                VisualChildren.Add(newChild);
            }

            _createdChild = true;
        }