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## org.eclipse.jface.text
Interface ITextViewerExtension3

All Known Subinterfaces:
  ITextViewerExtension5

All Known Implementing Classes:
  ProjectionViewer

Deprecated. replaced by `ITextViewerExtension5`

public interface ITextViewerExtension3

Extension interface for `ITextViewer`.

This interface has been replaced by `ITextViewerExtension5`. Clients are not supposed to use this interface any longer.

Since:
  2.1

Method Summary
`IRegion` | `getModelCoverage()` Deprecated. Returns the minimal region of the viewer's document that completely comprises everything that is visible in the viewer's widget or `null` if there is no such region.
`int` | `modelLine2WidgetLine(int modelLine)` Deprecated. Returns the widget line that corresponds to the given line of the viewer's document or `-1` if there is no such line.
`int` | `modelOffset2WidgetOffset(int modelOffset)` Deprecated. Returns the widget offset that corresponds to the given offset in the viewer's document or `-1` if there is no such offset
`IRegion` | `modelRange2WidgetRange(IRegion modelRange)` Deprecated. Returns the minimal region of the viewer's widget that completely comprises the given region of the viewer's document or `null` if there is no such region.
`int` | `widgetLineOfWidgetOffset(int widgetOffset)` Deprecated. Returns the widget line of the given widget offset.
`int` | `widgetlLine2ModelLine(int widgetLine)` Deprecated. Returns the line of the viewer's document that corresponds to the given widget line or `-1` if there is no such line.
`int` | `widgetOffset2ModelOffset(int widgetOffset)` Deprecated. Returns the offset of the viewer's document that corresponds to the given widget offset or `-1` if there is no such offset
`IRegion` | `widgetRange2ModelRange(IRegion widgetRange)` Deprecated. Returns the minimal region of the viewer's document that completely comprises the given widget region or `null` if there is no such region.

Method Detail

### getModelCoverage

    public IRegion getModelCoverage()

  Deprecated.
  Returns the minimal region of the viewer's document that completely comprises everything that is visible in the viewer's widget or `null` if there is no such region.

  Returns:
    the minimal region of the viewer's document comprising the contents of the viewer's widget or `null`

### modelLine2WidgetLine

    public int modelLine2WidgetLine(int modelLine)

  Deprecated.
  Returns the widget line that corresponds to the given line of the viewer's document or `-1` if there is no such line.

  Parameters:
    `modelLine` - the line of the viewer's document
  Returns:
    the corresponding widget line or `-1`

### modelOffset2WidgetOffset

    public int modelOffset2WidgetOffset(int modelOffset)

  Deprecated.
  Returns the widget offset that corresponds to the given offset in the viewer's document or `-1` if there is no such offset

  Parameters:
    `modelOffset` - the offset in the viewer's document
  Returns:
    the corresponding widget offset or `-1`

### modelRange2WidgetRange

    public IRegion modelRange2WidgetRange(IRegion modelRange)

  Deprecated.
  Returns the minimal region of the viewer's widget that completely comprises the given region of the viewer's document or `null` if there is no such region.

  Parameters:
    `modelRange` - the region of the viewer's document
  Returns:
    the minimal region of the widget comprising `modelRange` or `null`

### widgetOffset2ModelOffset

    public int widgetOffset2ModelOffset(int widgetOffset)

  Deprecated.
  Returns the offset of the viewer's document that corresponds to the given widget offset or `-1` if there is no such offset

  Parameters:
    `widgetOffset` - the widget offset
  Returns:
    the corresponding offset in the viewer's document or `-1`

### widgetRange2ModelRange

    public IRegion widgetRange2ModelRange(IRegion widgetRange)

  Deprecated.
  Returns the minimal region of the viewer's document that completely comprises the given widget region or `null` if there is no such region.

  Parameters:
    `widgetRange` - the widget region
  Returns:
    the minimal region of the viewer's document comprising `widgetlRange` or `null`

### widgetlLine2ModelLine

    public int widgetlLine2ModelLine(int widgetLine)

  Deprecated.
  Returns the line of the viewer's document that corresponds to the given widget line or `-1` if there is no such line.

  Parameters:
    `widgetLine` - the widget line
  Returns:
    the corresponding line of the viewer's document or `-1`

### widgetLineOfWidgetOffset

    public int widgetLineOfWidgetOffset(int widgetOffset)

  Deprecated.
  Returns the widget line of the given widget offset.

  Parameters:
    `widgetOffset` - the widget offset
  Returns:
    the widget line of the widget offset

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