X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libjava%2Fgnu%2Fawt%2Fxlib%2FXEventLoop.java;fp=libjava%2Fgnu%2Fawt%2Fxlib%2FXEventLoop.java;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=4d2932089397d86dcdd4ade37110489f4a37d7f8;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libjava/gnu/awt/xlib/XEventLoop.java b/libjava/gnu/awt/xlib/XEventLoop.java deleted file mode 100644 index 4d293208..00000000 --- a/libjava/gnu/awt/xlib/XEventLoop.java +++ /dev/null @@ -1,268 +0,0 @@ -package gnu.awt.xlib; - -/* Copyright (C) 2000 Free Software Foundation - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - -import java.awt.*; - -import gnu.awt.LightweightRedirector; -import gnu.gcj.xlib.Display; -import gnu.gcj.xlib.XAnyEvent; -import gnu.gcj.xlib.XExposeEvent; -import gnu.gcj.xlib.XButtonEvent; -import gnu.gcj.xlib.XConfigureEvent; -import java.awt.event.PaintEvent; -import java.awt.event.InputEvent; -import java.awt.event.MouseEvent; -import java.util.Vector; - -public class XEventLoop implements Runnable -{ - Display display; - EventQueue queue; - XAnyEvent anyEvent; - Thread eventLoopThread; - - LightweightRedirector lightweightRedirector = new LightweightRedirector(); - - public XEventLoop(Display display, EventQueue queue) - { - this.display = display; - this.queue = queue; - - anyEvent = new XAnyEvent(display); - eventLoopThread = new Thread(this, "AWT thread for XEventLoop"); - eventLoopThread.start(); - } - - public void run() - { - while (true) - postNextEvent(); - } - - void postNextEvent() - { - try - { - AWTEvent evt = getNextEvent(); - queue.postEvent(evt); - - } - catch (InterruptedException ie) - { - // FIXME: what now? - System.err.println(ie); - } - } - - /** get next event. Will block until events become available. */ - - public AWTEvent getNextEvent() - { - // ASSERT: - if (isIdle()) - throw new Error("should not be idle"); - - AWTEvent event = null; - while (event == null) - { - loadNextEvent(); - event = createEvent(); - } - - event = lightweightRedirector.redirect(event); - - return event; - } - - void loadNextEvent() - { - try - { - setIdle(true); - - /* The code below will result in an XFlush(). However, - while we are waiting for events after calling XFlush(), - new X requests issued on other threads will not - automatically be flushed. This can lead to a deadlock - since XFlush() will not be called before after the - processing of the next event, and new events arriving - might be dependent on the delivery of the X - requests. - - Code that issues X requests should therefore call - flushIfIdle() after they're done, to ensure that the - requests are delivered in a timely manner. XFlush is not - run if event processing is underway, since we are assured - that the event loop execution will return to this point, - where requests are flushed again, before waiting for new - events. - - Alternatively, do the work on the AWT thread, since the - XEventQueue knows how to flush the display when it runs out - of events. */ - - //display.flush(); // implicit? - anyEvent.loadNext(); - } - catch (RuntimeException re) - { - System.err.println("Exception thrown on event thread:" + re); - } - finally - { - setIdle(false); - } - } - - /** - * @returns an AWT event created based on the current XEvent. - * Returns null if the current XEvent does not map to any perticular - * AWT event. - */ - - AWTEvent createEvent() - { - /* avoid attempting to get client data before client data has - been set. */ - Object peer; - synchronized (this) - { - peer = anyEvent.getWindow().getClientData(); - } - - Component source = null; - - // Try to identify source component - - if (peer instanceof XCanvasPeer) - { - source = ((XCanvasPeer) peer).getComponent(); - } - - if (source == null) - { - String msg = "unable to locate source for event (" + - anyEvent + ")"; - throw new RuntimeException(msg); - } - - /* if a mapping from anyEvent to AWTEvent is possible, construct a - new AWTEvent and return it. */ - - int type = anyEvent.getType(); - switch (type) - { - case XAnyEvent.TYPE_EXPOSE: - return createPaintEvent(source); - case XAnyEvent.TYPE_BUTTON_PRESS: - case XAnyEvent.TYPE_BUTTON_RELEASE: - return createMouseEvent(type, source); - case XAnyEvent.TYPE_UNMAP_NOTIFY: - case XAnyEvent.TYPE_MAP_NOTIFY: - case XAnyEvent.TYPE_REPARENT_NOTIFY: - return null; // ignore for now - case XAnyEvent.TYPE_CONFIGURE_NOTIFY: - configureNotify(peer); - return null; - - default: - String msg = "Do no know how to handle event (" + anyEvent + ")"; - throw new RuntimeException(msg); - } - } - - AWTEvent createPaintEvent(Component src) - { - XExposeEvent expose = new XExposeEvent(anyEvent); - PaintEvent pe = new PaintEvent(src, PaintEvent.PAINT, - expose.getBounds()); - return pe; - } - - AWTEvent createMouseEvent(int type, Component src) - { - XButtonEvent buttonEvt = new XButtonEvent(anyEvent); - - int modifiers = 0; //buttonToModifierMap[buttonEvt.button]; - - /* Warning: this makes assumptions on the contents of - X.h... Button1 = 1, Button2 = 2, etc... */ - switch (buttonEvt.button) - { - case 1: - modifiers = InputEvent.BUTTON1_MASK; - break; - case 2: - modifiers = InputEvent.BUTTON2_MASK; - break; - case 3: - modifiers = InputEvent.BUTTON2_MASK; - break; - } - - int state = buttonEvt.state; - - // remap bits from state to modifiers: - - if ((state & XButtonEvent.MASK_SHIFT) != 0) - modifiers |= InputEvent.SHIFT_MASK; - - - if ((state & XButtonEvent.MASK_CONTROL) != 0) - modifiers |= InputEvent.CTRL_MASK; - - - /* FIXME: we need additional X code to properly map MODn states to - input modifiers */ - - int clickCount = 1; // FIXME... Can't get this from X. - boolean popupTrigger = false; // FIXME: look up policy somewhere - - int x = buttonEvt.x; - int y = buttonEvt.y; - - int id = (type == XAnyEvent.TYPE_BUTTON_PRESS) ? - MouseEvent.MOUSE_PRESSED : - MouseEvent.MOUSE_RELEASED; - - MouseEvent me = new MouseEvent(src, - id, - buttonEvt.time, modifiers, - buttonEvt.x, buttonEvt.y, - clickCount, popupTrigger); - return me; - } - - void configureNotify(Object peerObj) - { - XConfigureEvent configEvent = new XConfigureEvent(anyEvent); - XFramePeer peer = (XFramePeer) peerObj; - - peer.configureNotify(configEvent); - } - - public void flushIfIdle() - { - if (isIdle()) - display.flush(); - } - - volatile boolean idle = false; - - final synchronized void setIdle(boolean idle) - { - this.idle = idle; - } - - final synchronized boolean isIdle() - { - return idle; - } -}