public override void RenderGanttElement(DrawingContext context, RectangleF rectangle, Brush backgroundBrush, Pen borderPen)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
if (backgroundBrush != null)
{
context.Graphics.FillRectangle(backgroundBrush, rectangle);
}
if (borderPen != null)
{
int n = this.Children.Count + 1;
for (int i = 0; i < n; i++)
{
float y = rectangle.Top + i * (context.HeaderItemHeight + style.BorderWidth);
context.Graphics.DrawLine(borderPen, rectangle.Left, y, rectangle.Right, y);
}
}
_rectangle = rectangle;
}
public virtual RectangleF CalculateRectangle(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
float width = this.Width;
if (width <= 0)
{
width = style.Width;
}
float height = this.Height;
if (height <= 0)
{
height = style.Height;
}
return(new RectangleF(context.Left, context.CurrentTop, width, height));
}
public override RectangleF CalculateRectangle(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
_startX = context.DateToPixel(_value);
float x = _startX;
float width = style.Width;
float height = style.Height;
// Make odd size
if ((width % 2) == 0)
{
width--;
}
if ((height % 2) == 0)
{
height--;
}
float minSize = Math.Min(style.Width, style.Height);
switch (style.ShapeStyle)
{
case ShapeStyle.Circle:
width = height = minSize;
x -= (width - 1) / 2;
break;
case ShapeStyle.LeftTriangle:
height = minSize;
width = (minSize + 1) / 2;
x += 1 - width;
break;
case ShapeStyle.RightTriangle:
height = minSize;
width = (minSize + 1) / 2;
break;
default:
x -= (width - 1) / 2;
break;
}
float y = context.CurrentTop + (context.ItemHeight - height) / 2;
return(new RectangleF(x, y, width, height));
}
public override void RenderElement(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
DateTime leftDate = context.PixelToDate(context.Left).Date;
DateTime rightDate = context.PixelToDate(context.Left + context.Width).Date;
bool isTopPortion = context.CurrentTop > context.Top;
float top = isTopPortion ? context.CurrentTop : context.Top;
float width = context.TimeSpanToPixel(new TimeSpan(1, 0, 0, 0));
float height = isTopPortion ? context.FreeHeight : context.Height;
DateTime currentDate = leftDate;
while (currentDate <= rightDate)
{
bool render = false;
if (_dayOfWeek != null)
{
if (currentDate.DayOfWeek == _dayOfWeek.Value)
{
render = true;
}
}
if (_date != null)
{
if (currentDate == _date.Value)
{
render = true;
}
}
if (render)
{
GanttStyle style = this.Style as GanttStyle;
RectangleF rectangle = new RectangleF(context.DateToPixel(currentDate), top, width, height);
using (Brush backgroundBrush = CreateBackgroundBrush(style))
using (Pen borderPen = CreateBorderPen(style))
{
RenderGanttElement(context, rectangle, backgroundBrush, borderPen);
}
}
currentDate = currentDate.AddDays(1);
}
}
public override void RenderElement(DrawingContext context)
{
GanttStyle style = this.Style as GanttStyle;
if (style.ShapeStyle != ShapeStyle.None)
{
_rectangle = CalculateRectangleAndSetSize(context);
using (Brush backgroundBrush = CreateBackgroundBrush(style))
using (Pen borderPen = CreateBorderPen(style))
{
RenderGanttElement(context, _rectangle, backgroundBrush, borderPen);
}
}
}
protected static Pen CreateBorderPen(GanttStyle style)
{
if (style == null)
{
throw new ArgumentNullException("style");
}
switch (style.BorderStyle)
{
case BorderStyle.Solid:
return(new Pen(style.BorderColor, style.BorderWidth));
default:
return(null);
}
}
public override RectangleF CalculateRectangle(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
float height = style.Height;
float x = context.DateToPixel(_start);
float x2 = context.DateToPixel(_finish);
float width = x2 - x;
float y = context.CurrentTop + (context.ItemHeight - height) / 2;
return(new RectangleF(x, y, width, height));
}
public void LoadStyleSheet(IXPathNavigable styles)
{
_styles.Clear();
int ruleOrder = 0;
foreach (XPathNavigator node in styles.CreateNavigator().SelectSingleNode("style").SelectChildren(XPathNodeType.Element))
{
switch (node.Name)
{
case "rule":
GanttStyle style = new GanttStyle();
style.Load(node, StyleNamespaceId, ruleOrder);
_styles.Add(style);
ruleOrder++;
break;
}
}
_styles.Sort();
}
protected static Brush CreateBackgroundBrush(GanttStyle style)
{
if (style == null)
{
throw new ArgumentNullException("style");
}
switch (style.FillStyle)
{
case FillStyle.Hatch:
return(new HatchBrush(style.HatchStyle, style.ForegroundColor, style.BackgroundColor));
case FillStyle.Solid:
return(new SolidBrush(style.BackgroundColor));
default:
return(null);
}
}
private void ApplyStyle(Element element)
{
List <Style> styles = new List <Style>();
foreach (Style style in _styles)
{
if (style.Selector.Matches(element))
{
styles.Add(style);
}
}
GanttStyle computedStyle = new GanttStyle();
bool allPropertiesAreDefined = false;
for (int i = styles.Count - 1; i >= 0; i--)
{
allPropertiesAreDefined = computedStyle.CopyFrom(styles[i], false);
if (allPropertiesAreDefined)
{
break;
}
}
if (!allPropertiesAreDefined && element.Parent != null)
{
allPropertiesAreDefined = computedStyle.CopyFrom(element.Parent.Style, true);
}
if (!allPropertiesAreDefined)
{
computedStyle.ApplyDefaultValues();
}
computedStyle.CalculateValues();
element.Style = computedStyle;
foreach (Element child in element.Children)
{
ApplyStyle(child);
}
}
public override void RenderChildren(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
float y = context.CurrentTop;
foreach (Element child in this.Children)
{
context.CurrentTop += style.BorderWidth;
child.Render(context);
context.CurrentTop += child.Height;
}
context.CurrentTop = y;
context.Graphics.SetClip(_rectangle, CombineMode.Exclude);
}
public override void RenderGanttElement(DrawingContext context, RectangleF rectangle, Brush backgroundBrush, Pen borderPen)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
float halfWidth = (rectangle.Width - 1) / 2;
float halfHeight = (rectangle.Height - 1) / 2;
float centerX = rectangle.Left + halfWidth;
float centerY = rectangle.Top + halfHeight;
GanttStyle style = this.Style as GanttStyle;
PointF[] points = null;
RectangleF ellipse = RectangleF.Empty;
switch (style.ShapeStyle)
{
case ShapeStyle.Circle:
case ShapeStyle.Ellipse:
ellipse = rectangle;
ellipse.Width--;
ellipse.Height--;
break;
case ShapeStyle.LeftTriangle:
points = new PointF[]
{
new PointF(rectangle.Right - 1, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Bottom - 1),
new PointF(rectangle.Left, centerY),
};
break;
case ShapeStyle.RightTriangle:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Left, rectangle.Bottom - 1),
new PointF(rectangle.Right - 1, centerY),
};
break;
case ShapeStyle.Rhombus:
points = new PointF[]
{
new PointF(centerX, rectangle.Top),
new PointF(rectangle.Right - 1, centerY),
new PointF(centerX, rectangle.Bottom - 1),
new PointF(rectangle.Left, centerY),
};
break;
case ShapeStyle.PentagonDown:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Top),
new PointF(rectangle.Right - 1, centerY),
new PointF(centerX, rectangle.Bottom - 1),
new PointF(rectangle.Left, centerY),
};
break;
case ShapeStyle.PentagonUp:
points = new PointF[]
{
new PointF(centerX, rectangle.Top),
new PointF(rectangle.Right - 1, centerY),
new PointF(rectangle.Right - 1, rectangle.Bottom - 1),
new PointF(rectangle.Left, rectangle.Bottom - 1),
new PointF(rectangle.Left, centerY),
};
break;
case ShapeStyle.PentagonRight:
points = new PointF[]
{
new PointF(rectangle.Right - 1, centerY),
new PointF(centerX, rectangle.Bottom - 1),
new PointF(rectangle.Left, rectangle.Bottom - 1),
new PointF(rectangle.Left, rectangle.Top),
new PointF(centerX, rectangle.Top),
};
break;
case ShapeStyle.PentagonLeft:
points = new PointF[]
{
new PointF(rectangle.Left, centerY),
new PointF(centerX, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Bottom - 1),
new PointF(centerX, rectangle.Bottom - 1),
};
break;
default:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Right, rectangle.Top),
new PointF(rectangle.Right, rectangle.Bottom),
new PointF(rectangle.Left, rectangle.Bottom),
};
break;
}
if (ellipse != RectangleF.Empty)
{
if (backgroundBrush != null)
{
context.Graphics.FillEllipse(backgroundBrush, ellipse);
}
if (borderPen != null)
{
context.Graphics.DrawEllipse(borderPen, ellipse);
}
}
if (points != null)
{
if (backgroundBrush != null)
{
context.Graphics.FillPolygon(backgroundBrush, points);
}
if (borderPen != null)
{
context.Graphics.DrawPolygon(borderPen, points);
}
}
}
protected static Pen CreateBorderPen(GanttStyle style)
{
if (style == null)
throw new ArgumentNullException("style");
switch (style.BorderStyle)
{
case BorderStyle.Solid:
return new Pen(style.BorderColor, style.BorderWidth);
default:
return null;
}
}
protected static Brush CreateBackgroundBrush(GanttStyle style)
{
if (style == null)
throw new ArgumentNullException("style");
switch (style.FillStyle)
{
case FillStyle.Hatch:
return new HatchBrush(style.HatchStyle, style.ForegroundColor, style.BackgroundColor);
case FillStyle.Solid:
return new SolidBrush(style.BackgroundColor);
default:
return null;
}
}
public override void RenderGanttElement(DrawingContext context, RectangleF rectangle, Brush backgroundBrush, Pen borderPen)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
float height = rectangle.Height;
// Make even size
if ((height % 2) != 0)
{
height++;
}
float halfHeight = rectangle.Height / 2;
GanttStyle style = this.Style as GanttStyle;
PointF[] points = null;
switch (style.ShapeStyle)
{
case ShapeStyle.Height50PercentUp:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Top + halfHeight),
new PointF(rectangle.Left, rectangle.Top + halfHeight),
};
break;
case ShapeStyle.Height50PercentDown:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Bottom - halfHeight),
new PointF(rectangle.Right - 1, rectangle.Bottom - halfHeight),
new PointF(rectangle.Right - 1, rectangle.Bottom - 1),
new PointF(rectangle.Left, rectangle.Bottom - 1),
};
break;
default:
points = new PointF[]
{
new PointF(rectangle.Left, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Top),
new PointF(rectangle.Right - 1, rectangle.Bottom - 1),
new PointF(rectangle.Left, rectangle.Bottom - 1),
};
break;
}
if (points != null)
{
if (backgroundBrush != null)
{
context.Graphics.FillPolygon(backgroundBrush, points);
}
if (borderPen != null)
{
if (style.ShapeStyle == ShapeStyle.Interval)
{
context.Graphics.DrawLine(borderPen, rectangle.Left, rectangle.Top, rectangle.Left, rectangle.Bottom - 1);
context.Graphics.DrawLine(borderPen, rectangle.Right - 1, rectangle.Top, rectangle.Right - 1, rectangle.Bottom - 1);
}
else
{
context.Graphics.DrawPolygon(borderPen, points);
}
}
}
}
public override void RenderElement(DrawingContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
GanttStyle style = this.Style as GanttStyle;
this.Height = context.HeaderItemHeight;
float visibleRight = context.Left + context.Width;
int leftIndex = GetIndexByPoint(context.Left);
int rightIndex = GetIndexByPoint(visibleRight);
TimeSpan axisInterval = new TimeSpan();
for (int cellIndex = leftIndex; cellIndex <= rightIndex; cellIndex++)
{
TimeCell cell = GetCell(cellIndex);
RectangleF rectangle = new RectangleF(cell.Left, context.CurrentTop, cell.Width, this.Height);
if (rectangle.Left >= context.Left && rectangle.Right <= visibleRight)
{
axisInterval += cell.Interval;
}
else if (rectangle.Left < context.Left && rectangle.Right <= visibleRight)
{
axisInterval += cell.GetTimeInterval(rectangle.Right - context.Left);
}
else if (rectangle.Left >= context.Left && rectangle.Right > visibleRight)
{
axisInterval += cell.GetTimeInterval(visibleRight - rectangle.Left);
}
using (SolidBrush backgroundBrush = new SolidBrush(style.BackgroundColor))
{
context.Graphics.FillRectangle(backgroundBrush, rectangle);
}
StringBuilder text = new StringBuilder();
switch (_titleType)
{
case TitleType.Start:
text.Append(GetDateText(cell.StartDate, _format, context.Provider));
break;
case TitleType.StartEnd:
text.Append(GetDateText(cell.StartDate, _format, context.Provider));
text.Append(" - ");
text.Append(GetDateText(cell.StartDate.AddTicks(cell.Interval.Ticks - 1), _format, context.Provider));
break;
}
if (text.Length > 0)
{
if (_scale == ScaleLevel.Week)
{
string weekNumber = string.Format(CultureInfo.InvariantCulture, " (#{0})", Iso8601WeekNumber.GetWeekNumber(cell.StartDate));
text.Append(weekNumber);
}
using (SolidBrush textBrush = new SolidBrush(style.ForegroundColor))
{
// TODO: Load font style from style sheet.
Font font = new Font("Arial", 8, FontStyle.Regular);
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
context.Graphics.DrawString(text.ToString(), font, textBrush, rectangle, stringFormat);
}
}
rectangle.Width--;
rectangle.Height--;
using (Pen borderPen = new Pen(style.BorderColor, style.BorderWidth))
{
context.Graphics.DrawLine(borderPen, rectangle.Left, rectangle.Top, rectangle.Left, rectangle.Bottom);
}
}
context.EndDate = _viewStartDate + axisInterval;
}
public float CalculateHeight(float headerItemHeight)
{
GanttStyle style = this.Style as GanttStyle;
return(headerItemHeight * this.Children.Count + style.BorderWidth * (this.Children.Count + 1));
}
public override void RenderGanttElement(DrawingContext context, RectangleF rectangle, Brush backgroundBrush, Pen borderPen)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
// Calculate arrow size
GanttStyle style = this.Style as GanttStyle;
_arrowSize = Math.Min(style.Width, style.Height);
GanttElement originElement = _origin as GanttElement;
GanttElement targetElement = _target as GanttElement;
RectangleF origin = originElement.Rectangle;
RectangleF target = targetElement.Rectangle;
PointF originEnd = new PointF(origin.Right, Convert.ToSingle(Math.Ceiling(origin.Top - 1 + origin.Height / 2)));
PointF targetStart = new PointF(targetElement.StartX, Convert.ToSingle(Math.Ceiling(target.Top - 1 + target.Height / 2)));
PointF[] linePoints = null;
PointF[] arrowPoints = null;
bool riseY = target.Y > origin.Y;
float doubleArrowSize = _arrowSize * 2;
if (targetStart.X - originEnd.X > doubleArrowSize)
{
PointF pointer = new PointF(targetStart.X, riseY ? target.Top - 1 : target.Bottom);
// Direct arrow: 3 points
linePoints = new PointF[3]
{
originEnd,
new PointF(pointer.X, originEnd.Y),
new PointF(pointer.X, riseY ? pointer.Y - _arrowSize - 1 : pointer.Y + _arrowSize + 1)
};
arrowPoints = CreateArrow(pointer, false, riseY);
}
else
{
PointF pointer = new PointF(target.Left - 1, targetStart.Y);
// Back arrow: 6 points
float intermediateY = riseY ? origin.Bottom + 1 : origin.Top - 2;
linePoints = new PointF[6]
{
originEnd,
new PointF(originEnd.X + doubleArrowSize, originEnd.Y),
new PointF(originEnd.X + doubleArrowSize, intermediateY),
new PointF(pointer.X - doubleArrowSize - 1, intermediateY),
new PointF(pointer.X - doubleArrowSize - 1, pointer.Y),
new PointF(pointer.X - _arrowSize - 1, pointer.Y)
};
arrowPoints = CreateArrow(pointer, true, true);
}
if (linePoints != null)
{
if (borderPen != null)
{
context.Graphics.DrawLines(borderPen, linePoints);
}
}
if (arrowPoints != null)
{
if (backgroundBrush != null)
{
context.Graphics.FillPolygon(backgroundBrush, arrowPoints);
}
if (borderPen != null)
{
context.Graphics.DrawPolygon(borderPen, arrowPoints);
}
}
}
public void LoadStyleSheet(IXPathNavigable styles)
{
_styles.Clear();
int ruleOrder = 0;
foreach (XPathNavigator node in styles.CreateNavigator().SelectSingleNode("style").SelectChildren(XPathNodeType.Element))
{
switch (node.Name)
{
case "rule":
GanttStyle style = new GanttStyle();
style.Load(node, StyleNamespaceId, ruleOrder);
_styles.Add(style);
ruleOrder++;
break;
}
}
_styles.Sort();
}
private void ApplyStyle(Element element)
{
List<Style> styles = new List<Style>();
foreach (Style style in _styles)
{
if (style.Selector.Matches(element))
styles.Add(style);
}
GanttStyle computedStyle = new GanttStyle();
bool allPropertiesAreDefined = false;
for (int i = styles.Count - 1; i >= 0; i--)
{
allPropertiesAreDefined = computedStyle.CopyFrom(styles[i], false);
if (allPropertiesAreDefined)
break;
}
if(!allPropertiesAreDefined && element.Parent != null)
allPropertiesAreDefined = computedStyle.CopyFrom(element.Parent.Style, true);
if (!allPropertiesAreDefined)
computedStyle.ApplyDefaultValues();
computedStyle.CalculateValues();
element.Style = computedStyle;
foreach (Element child in element.Children)
{
ApplyStyle(child);
}
}
