org.eclipse.swt.graphics

Interface Drawable

All Known Implementing Classes:

AnimatedProgress, Browser, Button, Canvas, CBanner, CCombo, CLabel, Combo, Composite, Control, CoolBar, CTabFolder, DateTime, Decorations, Device, Display, ExpandBar, GLCanvas, Group, Image, Label, Link, List, OleClientSite, OleControlSite, OleFrame, Printer, ProgressBar, Sash, SashForm, Scale, Scrollable, ScrolledComposite, Shell, Slider, Spinner, StyledText, TabFolder, Table, TableCursor, TableTree, Text, ToolBar, Tree, TreeCursor, ViewForm, WebSite

public interface 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. SWT images, and device objects such as the Display device and the Printer device, are drawables.

IMPORTANT: This interface is not part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It should never be referenced from application code.

See Also:

Device, Image, GC

Structure Diagram

Method Summary

Methods

Modifier and Type	Method and Description
void	internal_dispose_GC(int handle, GCData data) Invokes platform specific functionality to dispose a GC handle.
int	internal_new_GC(GCData data) Invokes platform specific functionality to allocate a new GC handle.

Method Detail

internal_new_GC

int internal_new_GC(GCData data)

Invokes platform specific functionality to allocate a new GC handle.

IMPORTANT: This method is not part of the public API for Drawable. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms, and should never be called from application code.

Parameters:

data - the platform specific GC data

Returns:

the platform specific GC handle

internal_dispose_GC

void internal_dispose_GC(int handle,
                       GCData data)

Invokes platform specific functionality to dispose a GC handle.

IMPORTANT: This method is not part of the public API for Drawable. It is marked public only so that it can be shared within the packages provided by SWT. It is not available on all platforms, and should never be called from application code.

Parameters:

handle - the platform specific GC handle

data - the platform specific GC data