Package org.fife.ui.rtextarea
Class VolatileImageBackgroundPainterStrategy
java.lang.Object
org.fife.ui.rtextarea.ImageBackgroundPainterStrategy
org.fife.ui.rtextarea.VolatileImageBackgroundPainterStrategy
- All Implemented Interfaces:
BackgroundPainterStrategy
A strategy for painting the background of an
RTextAreaBase
as an image. The image is always stretched to completely fill the
RTextAreaBase
.
A java.awt.image.VolatileImage
is used for rendering;
theoretically, this should be the best image format for performance.
You can set the scaling hint used when stretching/skewing the image
to fit in the RTextAreaBase
's background via the
setScalingHint
method, but keep in mind the more
accurate the scaling hint, the less responsive your application will
be when stretching the window (as that's the only time the image's
size is recalculated).
- Version:
- 0.1
- See Also:
-
Field Summary
FieldsFields inherited from class org.fife.ui.rtextarea.ImageBackgroundPainterStrategy
tracker
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected void
paintImage
(Graphics g, int x, int y) Paints the image at the specified location.private void
renderImage
(int width, int height, int hint) Renders the image at the proper size intobgImage
.protected void
rescaleImage
(int width, int height, int hint) Rescales the displayed image to be the specified size.Methods inherited from class org.fife.ui.rtextarea.ImageBackgroundPainterStrategy
getMasterImage, getRTextAreaBase, getScalingHint, paint, setImage, setImage, setScalingHint
-
Field Details
-
bgImage
-
-
Constructor Details
-
VolatileImageBackgroundPainterStrategy
Constructor.- Parameters:
ta
- The text area whose background we'll be painting.
-
-
Method Details
-
paintImage
Paints the image at the specified location. This method assumes scaling has already been done, and simply paints the background image "as-is."- Specified by:
paintImage
in classImageBackgroundPainterStrategy
- Parameters:
g
- The graphics context.x
- The x-coordinate at which to paint.y
- The y-coordinate at which to paint.
-
renderImage
private void renderImage(int width, int height, int hint) Renders the image at the proper size intobgImage
. This method assumes thatbgImage
is notnull
.- Parameters:
width
- The width of the volatile image to render into.height
- The height of the volatile image to render into.hint
- The scaling hint to use.
-
rescaleImage
protected void rescaleImage(int width, int height, int hint) Rescales the displayed image to be the specified size.- Specified by:
rescaleImage
in classImageBackgroundPainterStrategy
- Parameters:
width
- The new width of the image.height
- The new height of the image.hint
- The scaling hint to use.
-