Package org.eclipse.swt.graphics

SWT graphics classes.

Package Specification

This package provides the classes which implement points, rectangles, regions, colors, cursors, fonts, graphics contexts (that is, GCs) where most of the primitive drawing operations are implemented, and images including both the code for displaying them and the public API for loading/saving them.

Interface Summary

Interface	Description
Drawable	Implementers of Drawable can have a graphics context (GC) created for them, and then they can be drawn on by sending messages to their associated GC.
ImageDataProvider	Interface to provide a callback mechanism to get information about images when the application is moved from a low DPI monitor to a high DPI monitor.
ImageFileNameProvider	Interface to provide a callback mechanism to get information about images when the application is moved from a low DPI monitor to a high DPI monitor.
ImageLoaderListener	Classes which implement this interface provide methods that deal with the incremental loading of image data.

Class Summary

Class	Description
Color	Instances of this store color information.
Cursor	Instances of this class manage operating system resources that specify the appearance of the on-screen pointer.
Device	This class is the abstract superclass of all device objects, such as the Display device and the Printer device.
DeviceData
Font	Instances of this class manage operating system resources that define how text looks when it is displayed.
FontData	Instances of this class describe operating system fonts.
FontMetrics	Instances of this class provide measurement information about fonts including ascent, descent, height, leading space between rows, and average character width.
GC	Class GC is where all of the drawing capabilities that are supported by SWT are located.
GCData	Instances of this class are descriptions of GCs in terms of unallocated platform-specific data fields.
GlyphMetrics	Instances of this class represent glyph metrics.
Image	Instances of this class are graphics which have been prepared for display on a specific device.
ImageData	Instances of this class are device-independent descriptions of images.
ImageLoader	Instances of this class are used to load images from, and save images to, a file or stream.
ImageLoaderEvent	Instances of this class are sent as a result of the incremental loading of image data.
LineAttributes	LineAttributes defines a set of line attributes that can be modified in a GC.
PaletteData	Instances of this class describe the color data used by an image.
Path	Instances of this class represent paths through the two-dimensional coordinate system.
PathData	Instances of this class describe device-independent paths.
Pattern	Instances of this class represent patterns to use while drawing.
Point	Instances of this class represent places on the (x, y) coordinate plane.
Rectangle	Instances of this class represent rectangular areas in an (x, y) coordinate system.
Region	Instances of this class represent areas of an x-y coordinate system that are aggregates of the areas covered by a number of polygons.
Resource	This class is the abstract superclass of all graphics resource objects.
RGB	Instances of this class are descriptions of colors in terms of the primary additive color model (red, green and blue).
RGBA	Instances of this class are descriptions of colors in terms of the primary additive color model (red, green, blue and alpha).
TextLayout	TextLayout is a graphic object that represents styled text.
TextStyle	TextStyle defines a set of styles that can be applied to a range of text.
Transform	Instances of this class represent transformation matrices for points expressed as (x, y) pairs of floating point numbers.