+++ /dev/null
-//----------------------------------------------------------------
-// Copyright (c) Microsoft Corporation. All rights reserved.
-//----------------------------------------------------------------
-namespace System.Activities.Presentation.Internal.PropertyEditing
-{
- using System;
- using System.Windows;
- using System.Windows.Controls;
- using System.Windows.Media;
-
- // <summary>
- // PropertyPanel is a simplified version of a horizontal StackPanel that we use for PropertyContainer
- // visuals in lieu of Grid, which was too heavy-weight and bogging down perf. It exposes a property,
- // LastChildWidth, that specifies the forced width of the last child in the panel. All other
- // children are stacked on the left and eat up the remainder of the space left on the panel.
- //
- // The panel also deals with drawing compartments for itself and the last child and it deals with
- // visually nesting sub-properties based on their depth (Level).
- // </summary>
- internal class PropertyPanel : Panel
- {
-
- // LastChildWidth DP
-
- public static readonly DependencyProperty OutlineBrushProperty =
- DependencyProperty.Register("OutlineBrush",
- typeof(Brush),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata((Brush)null,
- FrameworkPropertyMetadataOptions.AffectsRender |
- FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender));
-
- public static readonly DependencyProperty SelectionBrushProperty =
- DependencyProperty.Register("SelectionBrush",
- typeof(Brush),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata((Brush)null,
- FrameworkPropertyMetadataOptions.AffectsRender | FrameworkPropertyMetadataOptions.SubPropertiesDoNotAffectRender));
-
- public static readonly DependencyProperty OutlineThicknessProperty =
- DependencyProperty.Register("OutlineThickness",
- typeof(double),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata((double)1,
- FrameworkPropertyMetadataOptions.AffectsRender));
-
- public static readonly DependencyProperty IgnoreFirstChildBackgroundProperty =
- DependencyProperty.Register("IgnoreFirstChildBackground",
- typeof(bool),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata(
- false,
- FrameworkPropertyMetadataOptions.AffectsRender));
-
- public static DependencyProperty LastChildWidthProperty = DependencyProperty.Register(
- "LastChildWidth",
- typeof(double),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata(
- (double)0,
- FrameworkPropertyMetadataOptions.AffectsArrange | FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender));
-
- public static DependencyProperty LevelProperty = DependencyProperty.Register(
- "Level",
- typeof(int),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata(
- (int)0,
- FrameworkPropertyMetadataOptions.AffectsArrange | FrameworkPropertyMetadataOptions.AffectsMeasure));
-
- public static DependencyProperty LevelIndentProperty = DependencyProperty.Register(
- "LevelIndent",
- typeof(double),
- typeof(PropertyPanel),
- new FrameworkPropertyMetadata(
- (double)13,
- FrameworkPropertyMetadataOptions.AffectsArrange | FrameworkPropertyMetadataOptions.AffectsMeasure));
-
- // <summary>
- // Gets or sets the pixel width of the last child added into this panel.
- // </summary>
- public double LastChildWidth
- {
- get { return (double)this.GetValue(LastChildWidthProperty); }
- set { this.SetValue(LastChildWidthProperty, value); }
- }
-
-
-
- // Level DP
-
- // <summary>
- // Gets or sets the indentation level for the first child in this panel. Levels are
- // measured in ints, with 0 = no indentation, 1 = 1st sub-property, ...
- // The actual amount of space taken up by each level is controled by LevelIndent property
- // </summary>
- public int Level
- {
- get { return (int)this.GetValue(LevelProperty); }
- set { this.SetValue(LevelProperty, value); }
- }
-
-
-
- // LevelIndent DP
-
- // <summary>
- // Gets or sets the pixel width that the first child is indented for each level that
- // it belongs to
- // </summary>
- public double LevelIndent
- {
- get { return (double)this.GetValue(LevelIndentProperty); }
- set { this.SetValue(LevelIndentProperty, value); }
- }
-
-
-
- // OutlineBrush DP
-
- // <summary>
- // Gets or sets the line brush to use for the panel compartments
- // </summary>
- public Brush OutlineBrush
- {
- get { return (Brush)GetValue(OutlineBrushProperty); }
- set { SetValue(OutlineBrushProperty, value); }
- }
-
-
-
- // SelectionBrush DP
-
- // <summary>
- // Gets or sets the brush to be used as the background for everything but the last
- // element in the panel
- // </summary>
- public Brush SelectionBrush
- {
- get { return (Brush)GetValue(SelectionBrushProperty); }
- set { SetValue(SelectionBrushProperty, value); }
- }
-
-
-
- // OutlineThickness DP
-
- // <summary>
- // Gets or sets the line thickness for the panel compartments (not as Thickness, but
- // instead as a simple double)
- // </summary>
- public double OutlineThickness
- {
- get { return (double)GetValue(OutlineThicknessProperty); }
- set { SetValue(OutlineThicknessProperty, value); }
- }
-
-
-
- // IgnoreFirstChildBackground DP
-
- // <summary>
- // Gets or sets a flag indicating whether the SelectionBrush background should
- // or should not be applied to the first child of the panel
- // </summary>
- public bool IgnoreFirstChildBackground
- {
- get { return (bool)GetValue(IgnoreFirstChildBackgroundProperty); }
- set { SetValue(IgnoreFirstChildBackgroundProperty, value); }
- }
-
-
-
- // Stacks the children to the left, leaving LastChildWidth amount of space for the last child
- protected override Size MeasureOverride(Size availableSize)
- {
-
- double lastChildWidth = Math.Max(0, this.LastChildWidth);
- double indent = this.LevelIndent * this.Level;
- double availableWidth = Math.Max(0, availableSize.Width - lastChildWidth - indent);
- int childrenCount = InternalChildren.Count;
- int lastIndex = childrenCount - 1;
- Size actualSize = new Size();
-
- for (int i = 0; i < childrenCount; i++)
- {
- UIElement child = InternalChildren[i];
-
- if (i == lastIndex)
- {
- InternalChildren[i].Measure(new Size(lastChildWidth, availableSize.Height));
- }
- else
- {
- InternalChildren[i].Measure(new Size(availableWidth, availableSize.Height));
- }
-
- availableWidth -= child.DesiredSize.Width;
- //Compute the actual size for the propertypanel
- actualSize.Height = Math.Max(actualSize.Height, child.DesiredSize.Height);
- actualSize.Width += child.DesiredSize.Width;
- }
-
- return actualSize;
- }
-
- // Stacks the children to the left, leaving LastChildWidth amount of space for the last child
- protected override Size ArrangeOverride(Size finalSize)
- {
-
- double lastChildWidth = Math.Max(0, this.LastChildWidth);
- double indent = this.LevelIndent * this.Level;
- double availableWidth = Math.Max(0, finalSize.Width - lastChildWidth - indent);
- double left = indent;
- int childrenCount = InternalChildren.Count;
- int lastIndex = childrenCount - 1;
-
- for (int i = 0; i < childrenCount; i++)
- {
-
- UIElement child = InternalChildren[i];
- double desiredWidth = child.DesiredSize.Width;
- if (i == lastIndex)
- {
- child.Arrange(new Rect(Math.Max(0, finalSize.Width - lastChildWidth), 0, lastChildWidth, finalSize.Height));
- }
- else
- {
- child.Arrange(new Rect(left, 0, Math.Min(desiredWidth, availableWidth), finalSize.Height));
- }
-
- left += desiredWidth;
- availableWidth -= desiredWidth;
- availableWidth = Math.Max(0, availableWidth);
- }
-
- return finalSize;
- }
-
- // Custom renders compartments and dividers
- protected override void OnRender(DrawingContext dc)
- {
-
- Size renderSize = this.RenderSize;
- Brush outlineBrush = this.OutlineBrush;
- double outlineThickness = this.OutlineThickness;
- double halfThickness = outlineThickness / 2.0;
- double dividerRight = Math.Max(0, this.LastChildWidth);
- double dividerLeft = renderSize.Width - dividerRight - outlineThickness;
-
- Brush selectionBrush = this.SelectionBrush;
-
- if (selectionBrush != null)
- {
- bool ignoreFirstChildBackground = this.IgnoreFirstChildBackground;
- double firstChildWidth = 0;
-
- if (ignoreFirstChildBackground && this.Children.Count > 0)
- {
- firstChildWidth = this.Children[0].RenderSize.Width;
- }
-
- dc.DrawRectangle(selectionBrush, null, new Rect(
- firstChildWidth,
- 0,
- Math.Max(dividerLeft - firstChildWidth, 0),
- renderSize.Height));
- }
-
- base.OnRender(dc);
-
- // Use Guidelines to avoid anti-aliasing (fuzzy border lines)
- dc.PushGuidelineSet(new GuidelineSet(
- // X coordinates for guidelines (vertical lines)
- new double[] { 0, dividerLeft, dividerLeft + outlineThickness, renderSize.Width - outlineThickness, renderSize.Width },
- // Y coordinates for guidelines (horizontal lines)
- new double[] { 0, renderSize.Height - outlineThickness, renderSize.Height }));
-
- Pen outlinePen = new Pen(outlineBrush, outlineThickness);
-
- // Bottom edge
- dc.DrawLine(
- outlinePen,
- new Point(0, renderSize.Height - halfThickness),
- new Point(renderSize.Width, renderSize.Height - halfThickness));
-
- // Top edge
- dc.DrawLine(
- outlinePen,
- new Point(0, 0 - halfThickness),
- new Point(renderSize.Width, 0 - halfThickness));
-
- // Right edge
- dc.DrawLine(
- outlinePen,
- new Point(renderSize.Width - halfThickness, 0),
- new Point(renderSize.Width - halfThickness, renderSize.Height));
-
- // Divider
- dc.DrawLine(
- outlinePen,
- new Point(dividerLeft + halfThickness, 0),
- new Point(dividerLeft + halfThickness, renderSize.Height));
-
- dc.Pop();
- }
- }
-}
projects / mono.git / blobdiff