Instance Method

setUpGState

Overridden by subclasses to (re)initialize the view’s graphics state object.

Declaration

- (void)setUpGState;

Discussion

This method is automatically invoked when the graphics state object created using allocateGState needs to be initialized. The default implementation does nothing. Your subclass can override it to set the current font, line width, or any other graphics state parameter except coordinate transformations and the clipping path—these are established by the frame and bounds rectangles and by methods such as scaleUnitSquareToSize: and translateOriginToPoint:. Note that drawRect: can further transform the coordinate system and clipping path for whatever temporary effects it needs.

See Also

Deprecated Methods

- convertPointToBase:

Converts the point from the view’s coordinate system to the base coordinate system.

Deprecated
- convertPointFromBase:

Converts the point from the base coordinate system to the view’s coordinate system.

Deprecated
- convertSizeToBase:

Converts the size from the view’s coordinate system to the base coordinate system.

Deprecated
- convertSizeFromBase:

Converts the size from the base coordinate system to the view’s coordinate system.

Deprecated
- convertRectToBase:

Converts the rectangle from the view’s coordinate system to the base coordinate system.

Deprecated
- convertRectFromBase:

Converts the rectangle from the base coordinate system to the view’s coordinate system.

Deprecated
- performMnemonic:

Implemented by subclasses to respond to mnemonics.

Deprecated
- shouldDrawColor

Returns a Boolean value indicating whether the view is being drawn to an environment that supports color.

Deprecated
- allocateGState

Causes the view to maintain a private graphics state object, which encapsulates all parameters of the graphics environment.

Deprecated
- gState

Returns the identifier for the view’s graphics state object, or 0 if the view doesn’t have a graphics state object.

Deprecated
- renewGState

Invalidates the view’s graphics state object, if it has one.

Deprecated
- releaseGState

Frees the view’s graphics state object, if it has one.

Deprecated
- dragImage:at:offset:event:pasteboard:source:slideBack:

Initiates a dragging operation from the view, allowing the user to drag arbitrary data with a specified icon into any application that has window or view objects that accept dragged data.

Deprecated