1600 lines
45 KiB
C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Design;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using DevComponents.Charts.TextMarkup;
using DevComponents.DotNetBar.Charts.Style;
namespace DevComponents.DotNetBar.Charts
{
/// <summary>
/// Represents the collection of ReferenceLines.
/// </summary>
[Editor("DevComponents.Charts.Design.AxisReferenceCollectionEditor, DevComponents.Charts.Design, " +
"Version=14.1.0.37, Culture=neutral, PublicKeyToken=90f470f34c89ccaf", typeof(UITypeEditor))]
public class ReferenceLineCollection : CustomNamedCollection<ReferenceLine>
{
#region GetUniqueName
/// <summary>
/// Gets a unique (unused) reference line Name.
/// </summary>
/// <returns></returns>
public string GetUniqueName()
{
return (GetUniqueName("RefLine"));
}
#endregion
}
/// <summary>
/// Represents a reference line (a vertical or horizontal line on the chart
/// that can be used to signify, or reference, a specific axis/chart value).
/// </summary>
public class ReferenceLine : ChartVisualElement, ILegendItem
{
#region Private variables
private States _States;
private object _AxisValue;
private string _Text;
private Size _TextSize;
private BodyElement _TextMarkup;
private Rectangle _LineBounds;
private int _MaxLineCount = 3;
private ReferenceLineVisualStyle _ReferenceLineVisualStyle;
private EffectiveStyle<ReferenceLineVisualStyle> _EffectiveStyle;
private string _LegendText;
private ChartLegendItem _LegendItem;
private ChartLegendItemVisualStyles _ChartLegendItemVisualStyles;
#endregion
#region Constructors
/// <summary>
/// ReferenceLine
/// </summary>
public ReferenceLine()
{
InitDefaultStates();
_EffectiveStyle = new EffectiveStyle<ReferenceLineVisualStyle>(this);
}
/// <summary>
/// ReferenceLine
/// </summary>
/// <param name="name"></param>
public ReferenceLine(string name)
: this()
{
Name = name;
}
/// <summary>
/// ReferenceLine
/// </summary>
/// <param name="name"></param>
/// <param name="axisValue"></param>
public ReferenceLine(string name, object axisValue)
: this(name)
{
AxisValue = axisValue;
}
/// <summary>
/// ReferenceLine
/// </summary>
/// <param name="name"></param>
/// <param name="axisValue"></param>
public ReferenceLine(string name, object axisValue, string text)
: this(name, axisValue)
{
Text = text;
}
#endregion
#region InitDefaultStates
private void InitDefaultStates()
{
SetState(States.CheckedInLegend, true);
SetState(States.ShowInLegend, true);
SetState(States.ShowInParentLegend, true);
SetState(States.ShowCheckBoxInLegend, true);
SetState(States.ShowMarkerInLegend, true);
SetState(States.DisplayTextOnTop, true);
}
#endregion
#region Public properties
#region AxisValue
///<summary>
/// Gets or sets the associated axis value of the reference line.
///</summary>
[DefaultValue(null), Category("Appearance")]
[Description("Indicates the associated axis value of the reference line.")]
[TypeConverter("DevComponents.Charts.Design.PointValueConverter," +
"DevComponents.Charts.Design, Version=14.1.0.37, Culture=neutral, PublicKeyToken=90f470f34c89ccaf")]
public object AxisValue
{
get { return (_AxisValue); }
set
{
if (value != _AxisValue)
{
_AxisValue = value;
if (_LegendItem != null)
{
if (string.IsNullOrEmpty(Name) && string.IsNullOrEmpty(LegendText))
{
ChartAxis axis = Parent as ChartAxis;
_LegendItem.ItemText = axis.AxisOrientation + "-Axis: " + AxisValue;
}
}
OnPropertyChangedEx("AxisValue", VisualChangeType.Layout);
}
}
}
#endregion
#region DisplayLineOnTop
/// <summary>
/// Gets or sets whether the reference line is displayed on top of chart data.
/// </summary>
[DefaultValue(false), Category("Appearance")]
[Description("Indicates whether the reference line is displayed on top of chart data.")]
public bool DisplayLineOnTop
{
get { return (TestState(States.DisplayLineOnTop)); }
set
{
if (value != DisplayLineOnTop)
{
SetState(States.DisplayLineOnTop, value);
OnPropertyChangedEx("DisplayLineOnTop", VisualChangeType.Render);
}
}
}
#endregion
#region DisplayTextOnTop
/// <summary>
/// Gets or sets whether the reference text is displayed on top of chart data.
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether the reference text is displayed on top of chart data.")]
public bool DisplayTextOnTop
{
get { return (TestState(States.DisplayTextOnTop)); }
set
{
if (value != DisplayTextOnTop)
{
SetState(States.DisplayTextOnTop, value);
OnPropertyChangedEx("DisplayTextOnTop", VisualChangeType.Render);
}
}
}
#endregion
#region EffectiveStyle
/// <summary>
/// Gets a reference to the ReferenceLine's Effective (cached, composite) style.
/// </summary>
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ReferenceLineVisualStyle EffectiveStyle
{
get { return (_EffectiveStyle.Style); }
}
#endregion
#region EnableTextMarkup
/// <summary>
/// Gets or sets whether text-markup support is enabled for the reference line text
/// </summary>
[DefaultValue(false), Category("Appearance")]
[Description("Indicates whether text-markup support is enabled for the reference line text.")]
public bool EnableTextMarkup
{
get { return (TestState(States.EnableTextMarkup)); }
set
{
if (EnableTextMarkup != value)
{
SetState(States.EnableTextMarkup, value);
MarkupTextChanged();
OnPropertyChangedEx("EnableTextMarkup", VisualChangeType.Layout);
}
}
}
#region MarkupTextChanged
private void MarkupTextChanged()
{
if (_TextMarkup != null)
_TextMarkup.HyperLinkClick -= TextMarkupLinkClick;
_TextMarkup = null;
if (EnableTextMarkup == true)
{
if (MarkupParser.IsMarkup(_Text) == true)
{
_TextMarkup = MarkupParser.Parse(_Text);
if (_TextMarkup != null)
_TextMarkup.HyperLinkClick += TextMarkupLinkClick;
}
}
}
#endregion
#region TextMarkupLinkClick
/// <summary>
/// Occurs when a text markup link is clicked
/// </summary>
protected virtual void TextMarkupLinkClick(object sender, EventArgs e)
{
HyperLink link = sender as HyperLink;
if (link != null)
ChartControl.DoReferenceLineMarkupLinkClickEvent(this, link);
}
#endregion
#endregion
#region InvertVerticalText
/// <summary>
/// Gets or sets whether vertical reference text is inverted.
/// </summary>
[DefaultValue(false), Category("Appearance")]
[Description("Indicates whether vertical reference text is inverted.")]
public bool InvertVerticalText
{
get { return (TestState(States.InvertVerticalText)); }
set
{
if (value != InvertVerticalText)
{
SetState(States.InvertVerticalText, value);
OnPropertyChangedEx("InvertVerticalText", VisualChangeType.Render);
}
}
}
#endregion
#region MaxLineCount
/// <summary>
/// Gets or sets the maximum number of Text lines.
/// </summary>
[DefaultValue(3), Category("Layout")]
[Description("Indicates the maximum number of Text lines.")]
public int MaxLineCount
{
get { return (_MaxLineCount); }
set
{
if (value != _MaxLineCount)
{
_MaxLineCount = value;
OnPropertyChangedEx("MaxLineCount", VisualChangeType.Layout);
}
}
}
#endregion
#region PlainText
/// <summary>
/// Gets text without text-markup (if text-markup is used in Text)
/// </summary>
[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public string PlainText
{
get { return (_TextMarkup != null ? _TextMarkup.PlainText : _Text); }
}
#endregion
#region ReferenceLineVisualStyle
/// <summary>
/// Gets or sets the visual style for the ReferenceLine.
/// </summary>
[Category("Style")]
[Description("Indicates the visual style for the ReferenceLine.")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public ReferenceLineVisualStyle ReferenceLineVisualStyle
{
get
{
if (_ReferenceLineVisualStyle == null)
{
_ReferenceLineVisualStyle = new ReferenceLineVisualStyle();
StyleVisualChangeHandler(null, _ReferenceLineVisualStyle);
}
return (_ReferenceLineVisualStyle);
}
set
{
if (_ReferenceLineVisualStyle != value)
{
ReferenceLineVisualStyle oldValue = _ReferenceLineVisualStyle;
_ReferenceLineVisualStyle = value;
OnVisualStyleChanged("ReferenceLineVisualStyle", oldValue, value);
if (oldValue != null)
oldValue.Dispose();
}
}
}
#endregion
#region Text
///<summary>
/// Gets or sets the ReferenceLine Text.
///</summary>
[DefaultValue(null), Category("Layout")]
[Description("Indicates the ReferenceLine Text.")]
public string Text
{
get { return (_Text); }
set
{
if (value != _Text)
{
_Text = value;
MarkupTextChanged();
OnPropertyChangedEx("Text", VisualChangeType.Layout);
}
}
}
#endregion
#endregion
#region Internal properties
#region LineBounds
internal Rectangle LineBounds
{
get
{
if (_LineBounds.IsEmpty == true)
_LineBounds = GetLineBounds();
return (_LineBounds);
}
set { _LineBounds = value; }
}
#endregion
#region TextMarkup
internal BodyElement TextMarkup
{
get { return (_TextMarkup); }
}
#endregion
#endregion
#region MeasureOverride
protected override void MeasureOverride(ChartLayoutInfo layoutInfo)
{
_TextSize = Size.Empty;
}
#region MeasureText
private Size MeasureText(Graphics g,
ReferenceLineVisualStyle style, Size vsize)
{
Size size = Size.Empty;
string s = Text;
if (string.IsNullOrEmpty(s) == false)
{
if (TextMarkup != null)
{
size = GetMarkupTextSize(g,
TextMarkup, style, (vsize.Width > 0 ? vsize.Width : 10000));
}
else
{
using (StringFormat sf = new StringFormat())
{
style.GetStringFormatFlags(sf);
if (MaxLineCount <= 1)
sf.FormatFlags |= StringFormatFlags.NoWrap;
size = g.MeasureString(Text, style.Font, vsize, sf).ToSize();
}
}
size.Width++;
size.Height++;
if (MaxLineCount > 1)
{
int lineHeight = (int)(Math.Ceiling(style.Font.GetHeight())) * MaxLineCount;
if (size.Height > lineHeight)
size.Height = lineHeight;
}
}
return (size);
}
#region GetMarkupTextSize
private Size GetMarkupTextSize(Graphics g,
BodyElement textMarkup, ReferenceLineVisualStyle style, int width)
{
MarkupDrawContext d =
new MarkupDrawContext(g, style.Font, style.TextColor, false);
textMarkup.InvalidateElementsSize();
textMarkup.Measure(new Size(width, 0), d);
return (textMarkup.Bounds.Size);
}
#endregion
#endregion
#endregion
#region ArrangeOverride
protected override void ArrangeOverride(ChartLayoutInfo layoutInfo)
{
LineBounds = Rectangle.Empty;
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
{
ChartXy chartXy = axis.Parent as ChartXy;
if (chartXy != null)
{
Rectangle bounds = chartXy.ContentBounds;
if (chartXy.HScrollBar.Enabled == true)
bounds.Height -= (chartXy.HScrollBar.Height);
if (chartXy.VScrollBar.Enabled == true)
bounds.Width -= (chartXy.VScrollBar.Width);
BoundsRelative = GetLineBoundsEx();
}
}
}
#endregion
#region RenderOverride
protected override void RenderOverride(ChartRenderInfo renderInfo)
{
}
#region RenderLine
internal void RenderLine(ChartRenderInfo renderInfo)
{
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
{
Graphics g = renderInfo.Graphics;
ChartXy chartXy = axis.Parent as ChartXy;
Rectangle contentBounds = chartXy.ContentBounds;
ReferenceLineVisualStyle rstyle = EffectiveStyle;
if (axis.AxisOrientation == AxisOrientation.X)
RenderLineX(g, contentBounds, rstyle);
else
RenderLineY(g, contentBounds, rstyle);
}
}
#region RenderLineX
private void RenderLineX(Graphics g,
Rectangle contentBounds, ReferenceLineVisualStyle rstyle)
{
if (rstyle.LinePattern != LinePattern.None)
{
Rectangle lbounds = LineBounds;
if (lbounds.X > contentBounds.X && lbounds.X < contentBounds.Right)
{
Point pt1 = lbounds.Location;
Point pt2 = new Point(pt1.X, lbounds.Bottom);
using (Pen pen = new Pen(rstyle.LineColor, Dpi.Width(rstyle.LineWidth)))
{
if (rstyle.LinePattern != LinePattern.NotSet)
pen.DashStyle = (DashStyle)rstyle.LinePattern;
g.DrawLine(pen, pt2, pt1);
}
}
}
}
#endregion
#region RenderLineY
private void RenderLineY(Graphics g,
Rectangle contentBounds, ReferenceLineVisualStyle rstyle)
{
if (rstyle.LinePattern != LinePattern.None)
{
Rectangle lbounds = LineBounds;
if (lbounds.Y > contentBounds.Y && lbounds.Y < contentBounds.Bottom)
{
Point pt1 = lbounds.Location;
Point pt2 = new Point(lbounds.Right, pt1.Y);
using (Pen pen = new Pen(rstyle.LineColor, Dpi.Height(rstyle.LineWidth)))
{
if (rstyle.LinePattern != LinePattern.NotSet)
pen.DashStyle = (DashStyle)rstyle.LinePattern;
g.DrawLine(pen, pt1, pt2);
}
}
}
}
#endregion
#endregion
#region RenderLineText
internal void RenderLineText(ChartRenderInfo renderInfo)
{
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
{
Graphics g = renderInfo.Graphics;
ChartXy chartXy = axis.Parent as ChartXy;
Rectangle bounds = chartXy.ContentBounds;
if (chartXy.HScrollBar.Enabled == true)
bounds.Height -= (chartXy.HScrollBar.Height + 1);
if (chartXy.VScrollBar.Enabled == true)
bounds.Width -= (chartXy.VScrollBar.Width + 1);
ReferenceLineVisualStyle rstyle = EffectiveStyle;
if (axis.AxisOrientation == AxisOrientation.X)
RenderTextX(g, bounds, rstyle);
else
RenderTextY(g, bounds, rstyle);
}
}
#region RenderTextX
private void RenderTextX(Graphics g,
Rectangle bounds, ReferenceLineVisualStyle rstyle)
{
Rectangle lbounds = LineBounds;
if (lbounds.X > bounds.X && lbounds.X < bounds.Right)
{
if (_TextSize == Size.Empty)
{
Rectangle r = bounds;
int n = r.Width;
r.Width = r.Height;
r.Height = n;
if (rstyle.AllowWrap == Tbool.False)
r.Size = Size.Empty;
_TextSize = MeasureText(g, rstyle, r.Size);
}
int dy = (lbounds.Y + lbounds.Bottom) / 2;
Point pt = new Point(lbounds.X, dy);
int rotDegrees = (InvertVerticalText == true) ? 90 : -90;
g.TranslateTransform(pt.X, pt.Y);
g.RotateTransform(rotDegrees);
Rectangle tbounds = new Rectangle(
-bounds.Height / 2, -rstyle.LineWidth / 2, bounds.Height, rstyle.LineWidth);
switch (rstyle.TextAlignment)
{
case Alignment.TopLeft:
case Alignment.TopCenter:
case Alignment.TopRight:
tbounds.Y -= (_TextSize.Height + rstyle.TextPadding.Bottom);
break;
case Alignment.MiddleLeft:
case Alignment.MiddleCenter:
case Alignment.MiddleRight:
tbounds.Y -= (_TextSize.Height - tbounds.Height) / 2 + (rstyle.TextPadding.Vertical / 2 - rstyle.TextPadding.Top);
break;
case Alignment.BottomLeft:
case Alignment.BottomCenter:
case Alignment.BottomRight:
tbounds.Y += (rstyle.LineWidth + rstyle.TextPadding.Top);
break;
}
switch (rstyle.TextAlignment)
{
case Alignment.TopRight:
case Alignment.MiddleRight:
case Alignment.BottomRight:
tbounds.X = (tbounds.Right - _TextSize.Width);
tbounds.Width = _TextSize.Width;
break;
}
tbounds.X += +rstyle.TextPadding.Left;
tbounds.Width -= rstyle.TextPadding.Horizontal;
tbounds.Height = _TextSize.Height;
RenderText(g, tbounds, rstyle);
g.ResetTransform();
}
}
#endregion
#region RenderTextY
private void RenderTextY(Graphics g,
Rectangle bounds, ReferenceLineVisualStyle rstyle)
{
Rectangle lbounds = LineBounds;
if (lbounds.Y > bounds.Y && lbounds.Y < bounds.Bottom)
{
if (_TextSize == Size.Empty)
{
Rectangle r = bounds;
if (rstyle.AllowWrap == Tbool.False)
r.Size = Size.Empty;
_TextSize = MeasureText(g, rstyle, r.Size);
}
Point pt1 = lbounds.Location;
Point pt2 = new Point(lbounds.Right, pt1.Y);
Rectangle tbounds = new Rectangle(pt1.X, pt1.Y, pt2.X - pt1.X, 0);
switch (rstyle.TextAlignment)
{
case Alignment.TopLeft:
case Alignment.TopCenter:
case Alignment.TopRight:
tbounds.Y -= ((rstyle.LineWidth / 2) + rstyle.TextPadding.Bottom + _TextSize.Height);
break;
case Alignment.MiddleLeft:
case Alignment.MiddleCenter:
case Alignment.MiddleRight:
tbounds.Y -= ((_TextSize.Height + rstyle.TextPadding.Vertical) / 2 - rstyle.TextPadding.Top);
break;
case Alignment.BottomLeft:
case Alignment.BottomCenter:
case Alignment.BottomRight:
tbounds.Y += ((rstyle.LineWidth / 2) + rstyle.TextPadding.Top);
break;
}
switch (rstyle.TextAlignment)
{
case Alignment.TopRight:
case Alignment.MiddleRight:
case Alignment.BottomRight:
tbounds.X = (tbounds.Right - _TextSize.Width - rstyle.TextPadding.Horizontal);
tbounds.Width = _TextSize.Width + rstyle.TextPadding.Horizontal;
break;
}
tbounds.X += rstyle.TextPadding.Left;
tbounds.Width -= rstyle.TextPadding.Horizontal;
tbounds.Height += _TextSize.Height;
RenderText(g, tbounds, rstyle);
}
}
#endregion
#region RenderText
private void RenderText(
Graphics g, Rectangle r, ReferenceLineVisualStyle style)
{
if (r.Width > 0 && r.Height > 0)
{
string s = Text;
if (string.IsNullOrEmpty(s) == false)
{
if (TextMarkup != null)
{
RenderTextMarkup(g, r, style);
}
else
{
using (SolidBrush br = new SolidBrush(style.TextColor))
{
using (StringFormat sf = new StringFormat())
{
style.GetStringFormatFlags(sf);
g.DrawString(Text, style.Font, br, r, sf);
}
}
}
}
}
}
#region RenderTextMarkup
private void RenderTextMarkup(
Graphics g, Rectangle r, ReferenceLineVisualStyle style)
{
MarkupDrawContext d =
new MarkupDrawContext(g, style.Font, style.TextColor, false);
TextMarkup.Arrange(r, d);
Size size = TextMarkup.Bounds.Size;
TextMarkup.Bounds = new Rectangle(r.Location, size);
Region oldClip = g.Clip;
try
{
g.SetClip(r, CombineMode.Intersect);
TextMarkup.Render(d);
}
finally
{
g.Clip = oldClip;
}
}
#endregion
#endregion
#endregion
#endregion
#region GetLineBounds
private Rectangle GetLineBounds()
{
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
{
ChartXy chartXy = axis.Parent as ChartXy;
if (chartXy != null)
{
Rectangle bounds = chartXy.ContentBounds;
if (chartXy.HScrollBar.Enabled == true)
bounds.Height -= (chartXy.HScrollBar.Height);
if (chartXy.VScrollBar.Enabled == true)
bounds.Width -= (chartXy.VScrollBar.Width);
Point pt;
if (axis.AxisOrientation == AxisOrientation.X)
{
pt = new Point(axis.GetDisplayValue(AxisValue), bounds.Y);
pt = chartXy.GetLocalAdjustedPoint(pt);
pt.Y = bounds.Y;
}
else
{
pt = new Point(bounds.X, axis.GetDisplayValue(AxisValue));
pt = chartXy.GetLocalAdjustedPoint(pt);
pt.X = bounds.X;
}
return (new Rectangle(pt, bounds.Size));
}
}
return (Rectangle.Empty);
}
#endregion
#region GetLineBoundsEx
private Rectangle GetLineBoundsEx()
{
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
{
ChartXy chartXy = axis.Parent as ChartXy;
if (chartXy != null)
{
Rectangle bounds = chartXy.ContentBounds;
if (chartXy.HScrollBar.Enabled == true)
bounds.Height -= (chartXy.HScrollBar.Height);
if (chartXy.VScrollBar.Enabled == true)
bounds.Width -= (chartXy.VScrollBar.Width);
Point pt;
if (axis.AxisOrientation == AxisOrientation.X)
pt = new Point(axis.GetDisplayValue(AxisValue), bounds.Y);
else
pt = new Point(bounds.X, axis.GetDisplayValue(AxisValue));
return (new Rectangle(pt, bounds.Size));
}
}
return (Rectangle.Empty);
}
#endregion
#region GetDoubleValue
private double GetDoubleValue(object value)
{
if (value is double)
return (double)value;
return (Convert.ToDouble(value));
}
#endregion
#region EnsureVisible
/// <summary>
/// Ensures that the reference line is visible on screen.
/// </summary>
public void EnsureVisible()
{
EnsureVisible(false);
}
/// <summary>
/// Ensures that the reference line is visible on screen, and
/// optionally centered (if possible).
/// </summary>
/// <param name="center"></param>
public void EnsureVisible(bool center)
{
ChartAxis axis = Parent as ChartAxis;
if (axis != null)
axis.EnsureVisible(AxisValue, center);
}
#endregion
#region Style handling
#region ApplyStyles
public override void ApplyStyles(BaseVisualStyle style)
{
ReferenceLineVisualStyle rstyle = style as ReferenceLineVisualStyle;
if (rstyle != null)
{
ApplyParentStyles(rstyle, Parent as ChartContainer);
rstyle.ApplyStyle(ReferenceLineVisualStyle);
if (rstyle.LineColor.IsEmpty == true)
rstyle.LineColor = Color.Red;
if (rstyle.LineWidth < 0)
rstyle.LineWidth = 1;
if (rstyle.Font == null)
rstyle.Font = SystemFonts.DefaultFont;
if (rstyle.TextColor.IsEmpty == true)
rstyle.TextColor = Color.Black;
}
}
#region ApplyParentStyles
private void ApplyParentStyles(
ReferenceLineVisualStyle pstyle, ChartContainer item)
{
if (item != null)
{
ApplyParentStyles(pstyle, item.Parent as ChartContainer);
ChartPanel cp = item as ChartPanel;
if (cp != null)
pstyle.ApplyStyle(cp.DefaultVisualStyles.ReferenceLineVisualStyle);
}
else
{
pstyle.ApplyStyle(ChartControl.BaseVisualStyles.ReferenceLineVisualStyle);
pstyle.ApplyStyle(ChartControl.DefaultVisualStyles.ReferenceLineVisualStyle);
}
}
#endregion
#endregion
#region InvalidateStyle
///<summary>
///Invalidate the cached Style definition
///</summary>
public void InvalidateStyle()
{
ClearEffectiveStyles();
}
#endregion
#region ClearEffectiveStyles
protected override void ClearEffectiveStyles()
{
if (_EffectiveStyle.InvalidateStyle() == true)
InvalidateLayout();
if (LegendItem != null)
LegendItem.EffectiveStyles.InvalidateStyles();
}
#endregion
#region StyleChanged
protected override void StyleChanged(object sender, PropertyChangedEventArgs e)
{
base.StyleChanged(sender, e);
if (sender is ChartLegendItemVisualStyles && LegendItem != null)
InvalidateRender(LegendItem.Bounds);
}
#endregion
#endregion
#region ILegendItem
#region ChartLegendItemVisualStyles
/// <summary>
/// Gets or sets the visual styles for the Legend item.
/// </summary>
[Category("Style")]
[Description("Indicates the visual styles for the Legend item.")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public ChartLegendItemVisualStyles ChartLegendItemVisualStyles
{
get
{
if (_ChartLegendItemVisualStyles == null)
{
_ChartLegendItemVisualStyles = new ChartLegendItemVisualStyles();
StyleVisualChangeHandler(null, _ChartLegendItemVisualStyles);
}
return (_ChartLegendItemVisualStyles);
}
set
{
if (_ChartLegendItemVisualStyles != value)
{
ChartLegendItemVisualStyles oldValue = _ChartLegendItemVisualStyles;
_ChartLegendItemVisualStyles = value;
OnStyleChanged("ChartLegendItemVisualStyles", oldValue, value);
if (oldValue != null)
oldValue.Dispose();
}
}
}
#endregion
#region CheckedInLegend
/// <summary>
/// Gets or sets whether the ReferenceLine is checked in the Legend.
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether the ReferenceLine is checked in the Legend.")]
public bool CheckedInLegend
{
get { return (TestState(States.CheckedInLegend)); }
set
{
if (value != CheckedInLegend)
{
SetState(States.CheckedInLegend, value);
if (LegendItem != null)
LegendItem.UpdateCheckState();
OnPropertyChangedEx("CheckedInLegend", VisualChangeType.Render);
}
}
}
#endregion
#region ShowCheckBoxInLegend
/// <summary>
/// Gets or sets whether a checkbox for the ReferenceLine is shown in the Legend.
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether a checkbox for the ReferenceLine is shown in the Legend.")]
public bool ShowCheckBoxInLegend
{
get { return (TestState(States.ShowCheckBoxInLegend)); }
set
{
if (value != ShowCheckBoxInLegend)
{
SetState(States.ShowCheckBoxInLegend, value);
OnPropertyChangedEx("ShowCheckBoxInLegend", VisualChangeType.Layout);
}
}
}
#endregion
#region ShowInLegend
/// <summary>
/// Gets or sets whether the ReferenceLine is shown in the Legend.
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether the ReferenceLine is shown in the Legend.")]
public bool ShowInLegend
{
get { return (TestState(States.ShowInLegend)); }
set
{
if (value != ShowInLegend)
{
SetState(States.ShowInLegend, value);
OnPropertyChangedEx("ShowInLegend", VisualChangeType.Layout);
}
}
}
#endregion
#region ShowInParentLegend
/// <summary>
/// Gets or sets whether the Reference Line is shown in parent Legend(s).
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether the Reference Line is shown in parent Legend(s).")]
public bool ShowInParentLegend
{
get { return (TestState(States.ShowInParentLegend)); }
set
{
if (value != ShowInParentLegend)
{
SetState(States.ShowInParentLegend, value);
OnPropertyChangedEx("ShowInParentLegend", VisualChangeType.Layout);
}
}
}
#endregion
#region ShowMarkerInLegend
/// <summary>
/// Gets or sets whether the ReferenceLine Marker is shown in the Legend.
/// </summary>
[DefaultValue(true), Category("Appearance")]
[Description("Indicates whether the ReferenceLine Marker is shown in the Legend.")]
public bool ShowMarkerInLegend
{
get { return (TestState(States.ShowMarkerInLegend)); }
set
{
if (value != ShowMarkerInLegend)
{
SetState(States.ShowMarkerInLegend, value);
OnPropertyChangedEx("ShowMarkerInLegend", VisualChangeType.Layout);
}
}
}
#endregion
#region LegendItem
///<summary>
/// Gets the item's parent LegendItem.
///</summary>
[Description("Indicates the item's parent LegendItem.")]
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ChartLegendItem LegendItem
{
get { return (_LegendItem); }
internal set { _LegendItem = value; }
}
#endregion
#region LegendText
///<summary>
/// Gets or sets the text to display in the legend.
///</summary>
[DefaultValue(null), Category("DataLabel")]
[Description("Indicates the text to display in the legend.")]
public string LegendText
{
get { return (_LegendText); }
set
{
if (value != _LegendText)
{
_LegendText = value;
OnPropertyChangedEx("LegendText", Style.VisualChangeType.Layout);
}
}
}
#endregion
#region GetLegendItem
public ChartLegendItem GetLegendItem()
{
_LegendItem = null;
if (ShowInLegend == true)
{
_LegendItem = new ChartLegendItem();
if (CheckedInLegend == true)
_LegendItem.CheckState = CheckState.Checked;
_LegendItem.Name = Name;
_LegendItem.ItemText = LegendText;
if (string.IsNullOrEmpty(_LegendItem.Name) == true)
_LegendItem.Name = "(RefLine)";
_LegendItem.ChartItems.Add(this);
}
return (_LegendItem);
}
#endregion
#region GetLegendItems
public List<ChartLegendItem> GetLegendItems()
{
List<ChartLegendItem> list = null;
ChartLegendItem item = GetLegendItem();
if (item != null)
{
list = new List<ChartLegendItem>(1);
list.Add(item);
}
return (list);
}
#endregion
#region GetLegendItemColor
public Color GetLegendItemColor()
{
ReferenceLineVisualStyle rstyle = EffectiveStyle;
return (rstyle.LineColor);
}
#endregion
#region RenderLegendItemMarker
public void RenderLegendItemMarker(Graphics g,
ChartLegendItem litem, ChartLegendItemVisualStyle style)
{
ReferenceLineVisualStyle rstyle = EffectiveStyle;
if (rstyle.LinePattern != LinePattern.None)
{
Rectangle bounds = litem.MarkerBounds;
int n = bounds.Height / 2;
int lineWidth = Math.Min(rstyle.LineWidth, bounds.Height);
using (Pen pen = new Pen(GetLegendItemColor(), lineWidth))
{
if (rstyle.LinePattern != LinePattern.NotSet)
pen.DashStyle = (DashStyle)rstyle.LinePattern;
g.DrawLine(pen,
new Point(bounds.X, bounds.Y + n),
new Point(bounds.Right - 1, bounds.Y + n));
}
}
}
#endregion
#endregion
#region Copy/CopyTo
public override ChartVisualElement Copy()
{
ReferenceLine copy = new ReferenceLine();
CopyTo(copy);
return (copy);
}
public override void CopyTo(ChartVisualElement copy)
{
ReferenceLine c = copy as ReferenceLine;
if (c != null)
{
base.CopyTo(c);
c.AxisValue = AxisValue;
c.DisplayLineOnTop = DisplayLineOnTop;
c.DisplayTextOnTop = DisplayTextOnTop;
c.EnableTextMarkup = EnableTextMarkup;
c.InvertVerticalText = InvertVerticalText;
c.MaxLineCount = MaxLineCount;
c.ReferenceLineVisualStyle =
(_ReferenceLineVisualStyle != null) ? ReferenceLineVisualStyle.Copy() : null;
c.Text = Text;
c.CheckedInLegend = CheckedInLegend;
c.LegendText = LegendText;
c.ShowCheckBoxInLegend = ShowCheckBoxInLegend;
c.ShowInLegend = ShowInLegend;
c.ShowInParentLegend = ShowInParentLegend;
c.ShowMarkerInLegend = ShowMarkerInLegend;
}
}
#endregion
#region GetSerialData
internal override SerialElementCollection GetSerialData(string serialName)
{
SerialElementCollection sec = new SerialElementCollection();
if (serialName != null)
{
if (serialName.Equals("") == true)
serialName = "ReferenceLine";
sec.AddStartElement(serialName);
}
sec.AddValue("AxisValue", AxisValue, null);
sec.AddValue("DisplayLineOnTop", DisplayLineOnTop, false);
sec.AddValue("DisplayTextOnTop", DisplayTextOnTop, true);
sec.AddValue("EnableTextMarkup", EnableTextMarkup, false);
sec.AddValue("InvertVerticalText", InvertVerticalText, false);
sec.AddValue("MaxLineCount", MaxLineCount, 3);
if (_ReferenceLineVisualStyle != null && _ReferenceLineVisualStyle.IsEmpty == false)
sec.AddElement(_ReferenceLineVisualStyle.GetSerialData("ReferenceLineVisualStyle"));
sec.AddValue("Text", Text, null);
sec.AddValue("CheckedInLegend", CheckedInLegend, true);
sec.AddValue("LegendText", LegendText, null);
sec.AddValue("ShowCheckBoxInLegend", ShowCheckBoxInLegend, true);
sec.AddValue("ShowInLegend", ShowInLegend, true);
sec.AddValue("ShowInParentLegend", ShowInParentLegend, true);
sec.AddValue("ShowMarkerInLegend", ShowMarkerInLegend, true);
sec.AddElement(base.GetSerialData(null));
if (serialName != null)
sec.AddEndElement(serialName);
return (sec);
}
#endregion
#region PutSerialData
#region ProcessValue
internal override void ProcessValue(SerialElement se)
{
switch (se.Name)
{
case "AxisValue":
AxisValue = se.DataValue;
break;
case "CheckedInLegend":
CheckedInLegend = bool.Parse(se.StringValue);
break;
case "DisplayLineOnTop":
DisplayLineOnTop = bool.Parse(se.StringValue);
break;
case "DisplayTextOnTop":
DisplayTextOnTop = bool.Parse(se.StringValue);
break;
case "EnableTextMarkup":
EnableTextMarkup = bool.Parse(se.StringValue);
break;
case "InvertVerticalText":
InvertVerticalText = bool.Parse(se.StringValue);
break;
case "LegendText":
LegendText = se.StringValue;
break;
case "MaxLineCount":
MaxLineCount = int.Parse(se.StringValue);
break;
case "ShowCheckBoxInLegend":
ShowCheckBoxInLegend = bool.Parse(se.StringValue);
break;
case "ShowInLegend":
ShowInLegend = bool.Parse(se.StringValue);
break;
case "ShowInParentLegend":
ShowInParentLegend = bool.Parse(se.StringValue);
break;
case "ShowMarkerInLegend":
ShowMarkerInLegend = bool.Parse(se.StringValue);
break;
case "Text":
Text = se.StringValue;
break;
default:
base.ProcessValue(se);
break;
}
}
#endregion
#region ProcessCollection
internal override void ProcessCollection(SerialElement se)
{
SerialElementCollection sec = se.Sec;
switch (se.Name)
{
case "ReferenceLineVisualStyle":
sec.PutSerialData(ReferenceLineVisualStyle);
break;
default:
base.ProcessCollection(se);
break;
}
}
#endregion
#endregion
#region States
[Flags]
private enum States : uint
{
CheckedInLegend = (1U << 1),
ShowCheckBoxInLegend = (1U << 2),
ShowInLegend = (1U << 3),
ShowInParentLegend = (1U << 4),
ShowMarkerInLegend = (1U << 5),
DisplayLineOnTop = (1U << 6),
DisplayTextOnTop = (1U << 7),
EnableTextMarkup = (1U << 8),
InvertVerticalText = (1U << 9)
}
#region TestState
private bool TestState(States state)
{
return ((_States & state) == state);
}
#endregion
#region SetState
private void SetState(States state, bool value)
{
if (value == true)
_States |= state;
else
_States &= ~state;
}
#endregion
#endregion
#region IDisposable
public override void Dispose()
{
ChartLegendItemVisualStyles = null;
ReferenceLineVisualStyle = null;
base.Dispose();
}
#endregion
}
}