Class AbstractCustomColumn

Abstract base class that you can derive from when creating custom columns for the editor.

Takes care of some of the plumbing involved in implementing the interfaces and implements helper functions for drawing background and borders, measuring text and implementing font fallback.

Inheritance

object

AbstractCustomColumn

AbstractRowSelectionColumn

DocumentStructureInfoColumn

Implements

ICustomColumn

Inherited Members

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

Namespace: SdlSdl.DesktopEditorEditorApiImplementation

Assembly: Sdl.DesktopEditor.EditorApi.dll

Syntax

public abstract class AbstractCustomColumn : ICustomColumn

Constructors

AbstractCustomColumn()

Declaration

protected AbstractCustomColumn()

Properties

EditControl

Default implementation stores the value in a member.

Declaration

public virtual IEditControl EditControl { get; set; }

Property Value

Type	Description
IEditControl

IsComplex

Determines whether the column is complex or not. A normal column can draw each row independently of other rows. However, a complex column cannot draw each row independently of other rows. So complex columns need to be entirely redrawn when rows are changed or resized.

Declaration

public virtual bool IsComplex { get; }

Property Value

Type	Description
bool

TextFormat

Alignment of the text in the control, used when calculating the text size. By default the text is centered vertically.

Declaration

public TextFormatFlags TextFormat { get; set; }

Property Value

Type	Description
TextFormatFlags

Width

Default implementation stores the value in a member.

Declaration

public virtual int Width { get; set; }

Property Value

Type	Description
int

Methods

BeginDraw()

Called by the control when a repaint is needed. This is called once before a range of DrawCell calls.

Declaration

public virtual void BeginDraw()

CalculateCellContentHeight(Graphics, IRowInfo)

The implementation should return the height of the content in the cell.

Declaration

public abstract int CalculateCellContentHeight(Graphics g, IRowInfo row)

Parameters

Type	Name	Description
Graphics	g
IRowInfo	row

Returns

Type	Description
int

CalculateTextSize(Graphics, string, Font)

Determine the size of a text string in a specific font on a specific device, assuming that the text will not need to get word wrapped.

Declaration

protected Size CalculateTextSize(Graphics g, string text, Font font)

Parameters

Type	Name	Description
Graphics	g
string	text
Font	font

Returns

Type	Description
Size

CalculateTextSize(Graphics, string, Font, int)

Determine the size of a text string in a specified font, assuming that there is a maximum width which if exceeded will cause the text to word wrap across multiple lines.

Declaration

protected Size CalculateTextSize(Graphics g, string text, Font font, int maxWidth)

Parameters

Type	Name	Description
Graphics	g
string	text
Font	font
int	maxWidth

Returns

Type	Description
Size

DrawBorders(Graphics, Rectangle, Pen, Pen, Pen, Pen)

Draw all the default borders for the cell.

Declaration

protected static void DrawBorders(Graphics g, Rectangle cellBounds, Pen leftBorderPen, Pen rightBorderPen, Pen topBorderPen, Pen bottomBorderPen)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
Pen	leftBorderPen
Pen	rightBorderPen
Pen	topBorderPen
Pen	bottomBorderPen

DrawBottomBorder(Graphics, Rectangle, Pen)

Draw the bottom border for the cell.

Declaration

protected static void DrawBottomBorder(Graphics g, Rectangle cellBounds, Pen bottomBorderPen)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
Pen	bottomBorderPen

DrawCell(Graphics, IRowInfo, Rectangle, Pen, Pen, Pen, Pen)

The implementation should draw the content of the cell.

Declaration

public abstract void DrawCell(Graphics g, IRowInfo row, Rectangle cellBounds, Pen leftBorderPen, Pen rightBorderPen, Pen topBorderPen, Pen bottomBorderPen)

Parameters

Type	Name	Description
Graphics	g
IRowInfo	row
Rectangle	cellBounds
Pen	leftBorderPen
Pen	rightBorderPen
Pen	topBorderPen
Pen	bottomBorderPen

DrawDefaultBackground(Graphics, Rectangle, IRowInfo)

Fill the cell with the effective background color for the row.

Declaration

protected void DrawDefaultBackground(Graphics g, Rectangle cellBounds, IRowInfo row)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
IRowInfo	row

DrawLeftBorder(Graphics, Rectangle, Pen)

Draw the left border for the cell.

Declaration

protected static void DrawLeftBorder(Graphics g, Rectangle cellBounds, Pen leftBorderPen)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
Pen	leftBorderPen

DrawRightBorder(Graphics, Rectangle, Pen)

Draw the right border for the cell.

Declaration

protected static void DrawRightBorder(Graphics g, Rectangle cellBounds, Pen rightBorderPen)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
Pen	rightBorderPen

DrawTopBorder(Graphics, Rectangle, Pen)

Draw the top border for the cell.

Declaration

protected static void DrawTopBorder(Graphics g, Rectangle cellBounds, Pen topBorderPen)

Parameters

Type	Name	Description
Graphics	g
Rectangle	cellBounds
Pen	topBorderPen

GetFont()

Get the default font to use for text in this column.

Declaration

protected virtual Font GetFont()

Returns

Type	Description
Font

Remarks

The default implementation returns the system menu font.

GetOptimalWidth(Graphics)

The implementation should return the desired column width.

Declaration

public abstract int GetOptimalWidth(Graphics g)

Parameters

Type	Name	Description
Graphics	g

Returns

Type	Description
int

PrepareRegisterRows()

Called from the Editor before RegisterRows are called. Unfortunately RegisterRow is called for all rows when a change occurs in structure, even the row was already 'registered'.

Declaration

public virtual void PrepareRegisterRows()

RegisterRow(IRowInfo)

Called from the Editor when a row has been created. Allows a column to keep track of the rows available in the Editor and collect any information it needs about it. The default implementation does nothing.

Declaration

public virtual void RegisterRow(IRowInfo row)

Parameters

Type	Name	Description
IRowInfo	row	The row that has been created in the Editor.

SetRowSizeAccessor(RowSizeAccessor)

Allows the Editor to pass in a row size delegate which can be used to get the current Rectangle of any row in the Editor. The default implementation does nothing.

Declaration

public virtual void SetRowSizeAccessor(RowSizeAccessor rowSizeAccessor)

Parameters

Type	Name	Description
RowSizeAccessor	rowSizeAccessor	Delegate that will be passed into the row when registered with the Editor.

Implements

ICustomColumn

Extension Methods

WindowsControlUtils.ForWindowFromFrameworkElement(object, Action<Window>)