[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Represents the transform from a formatted text line to a rendered text line.
Assembly: Microsoft.VisualStudio.Text.UI (in Microsoft.VisualStudio.Text.UI.dll)
Thetype exposes the following members.
|BottomSpace||Gets the amount of space required below the text of the line before applying the VerticalScale factor.|
|Right||Gets the x-coordinate of the effective right edge of the line.|
|TopSpace||Gets the amount of space required above the text of the line before applying the VerticalScale factor.|
|VerticalScale||Gets the vertical scale factor to be applied to the text of the line and the space above and below the line.|
|Combine||Combines two objects.|
|Equals||Determines whether two objects are the same. (Overrides ValueType.Equals(Object).)|
|GetHashCode||Gets the hash code for this object. (Overrides ValueType.GetHashCode().)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|ToString||Returns the fully qualified type name of this instance. (Inherited from ValueType.)|
Most properties and parameters that are doubles correspond to coordinates or distances in the text rendering coordinate system. In this coordinate system, x = 0.0 corresponds to the left edge of the drawing surface onto which text is rendered (x = view.ViewportLeft corresponds to the left edge of the viewport), and y = view.ViewportTop corresponds to the top edge of the viewport. The x-coordinate increases from left to right, and the y-coordinate increases from top to bottom. The horizontal and vertical axes of the view behave differently. When the text in the view is formatted, only the visible lines are formatted. As a result, a viewport cannot be scrolled horizontally and vertically in the same way. A viewport is scrolled horizontally by changing the left coordinate of the viewport so that it moves with respect to the drawing surface. A view can be scrolled vertically only by performing a new layout.Doing a layout in the view may cause the ViewportTop property of the view to change.
For example, scrolling down one line will not translate any of the visible lines. Instead it will simply change the view's ViewportTop property (causing the lines to move on the screen even though their y-coordinates have not changed). Distances in the text rendering coordinate system correspond to logical pixels. If the text rendering surface is displayed without any scaling transform, then 1 unit in the text rendering coordinate system corresponds to one pixel on the display.