diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Tracker.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Tracker.java | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Tracker.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Tracker.java deleted file mode 100644 index dfc7b30b0e..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk1x/org/eclipse/swt/widgets/Tracker.java +++ /dev/null @@ -1,388 +0,0 @@ -package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.*;
-import org.eclipse.swt.internal.*;
-import org.eclipse.swt.internal.gtk.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * Instances of this class implement rubber banding rectangles.
- *
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>(none)</dd>
- * <dt><b>Events:</b></dt>
- * <dd>Move</dd>
- * </dl>
- * <p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- * </p>
- */
-public class Tracker extends Widget {
- Composite parent;
- Display display;
- boolean tracking, stippled;
- Rectangle [] rectangles = new Rectangle [0];
-
-
-/**
- * Constructs a new instance of this class given its parent
- * and a style value describing its behavior and appearance.
- * <p>
- * The style value is either one of the style constants defined in
- * class <code>SWT</code> which is applicable to instances of this
- * class, or must be built by <em>bitwise OR</em>'ing together
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>SWT</code> style constants. The class description
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p>
- *
- * @param parent a widget which will be the parent of the new instance (cannot be null)
- * @param style the style of widget to construct
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- *
- * @see SWT
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public Tracker (Composite parent, int style) {
- super (parent, style);
- this.parent = parent;
- display = parent.getDisplay ();
-}
-
-/**
- * Constructs a new instance of this class given the display
- * to create it on and a style value describing its behavior
- * and appearance.
- * <p>
- * The style value is either one of the style constants defined in
- * class <code>SWT</code> which is applicable to instances of this
- * class, or must be built by <em>bitwise OR</em>'ing together
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>SWT</code> style constants. The class description
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p><p>
- * Note: Currently, null can be passed in for the display argument.
- * This has the effect of creating the tracker on the currently active
- * display if there is one. If there is no current display, the
- * tracker is created on a "default" display. <b>Passing in null as
- * the display argument is not considered to be good coding style,
- * and may not be supported in a future release of SWT.</b>
- * </p>
- *
- * @param display the display to create the tracker on
- * @param style the style of control to construct
- *
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- */
-public Tracker (Display display, int style) {
- if (display == null) display = Display.getCurrent ();
- if (display == null) display = Display.getDefault ();
- if (!display.isValidThread ()) {
- error (SWT.ERROR_THREAD_INVALID_ACCESS);
- }
- this.style = style;
- this.display = display;
-}
-
-
-
-/*
- * === ADD / REMOVE LISTENERS ===
- */
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the control is moved or resized, by sending
- * it one of the messages defined in the <code>ControlListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see ControlListener
- * @see #removeControlListener
- */
-public void addControlListener(ControlListener listener) {
- checkWidget();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Move,typedListener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the control is moved or resized.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- *
- * @see ControlListener
- * @see #addControlListener
- */
-public void removeControlListener (ControlListener listener) {
- checkWidget();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Move, listener);
-}
-
-
-
-
-/*
- * === PUBLIC ACCESSORS ===
- */
-
-public Display getDisplay () {
- return display;
-}
-
-/**
- * Returns the bounds of the Rectangles being drawn.
- *
- * @return the bounds of the Rectangles being drawn
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public Rectangle [] getRectangles () {
- checkWidget();
- return rectangles;
-}
-
-/**
- * Returns <code>true</code> if the rectangles are drawn with a stippled line, <code>false</code> otherwise.
- *
- * @return the stippled effect of the rectangles
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean getStippled () {
- checkWidget();
- return stippled;
-}
-
-/**
- * Specify the rectangles that should be drawn.
- *
- * @param rectangles the bounds of the rectangles to be drawn
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setRectangles (Rectangle [] rectangles) {
- checkWidget();
- this.rectangles = rectangles;
-}
-
-/**
- * Change the appearance of the line used to draw the rectangles.
- *
- * @param stippled <code>true</code> if rectangle should appear stippled
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void setStippled (boolean stippled) {
- checkWidget();
- this.stippled = stippled;
-}
-
-
-
-/*
- * === PUBLIC FUNCTIONALITY ===
- */
-
-/**
- * Stop displaying the tracker rectangles.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public void close () {
- checkWidget();
- tracking = false;
-}
-
-/**
- * Start displaying the Tracker rectangles.
- *
- * @exception SWTException <ul>
- * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
- * </ul>
- */
-public boolean open () {
- checkWidget();
- int xWindow = calculateWindow();
- boolean cancelled=false;
- tracking = true;
- drawRectangles ();
-
- int[] newX = new int[1];
- int[] newY = new int[1];
- int[] oldX = new int[1];
- int[] oldY = new int[1];
- OS.gdk_window_get_pointer(xWindow, oldX,oldY, 0);
-
- while (tracking) {
- if (parent != null && parent.isDisposed ()) break;
- int eventType = waitEvent();
- switch (eventType) {
- case OS.GDK_BUTTON_RELEASE:
- case OS.GDK_MOTION_NOTIFY:
- OS.gdk_window_get_pointer(xWindow, newX,newY, 0);
- if (oldX [0] != newX [0] || oldY [0] != newY [0]) {
- drawRectangles ();
- for (int i=0; i<rectangles.length; i++) {
- rectangles [i].x += newX [0] - oldX [0];
- rectangles [i].y += newY [0] - oldY [0];
- }
- Event event = new Event();
- event.x = newX[0];
- event.y = newY[0];
- sendEvent (SWT.Move,event);
- drawRectangles ();
- oldX [0] = newX [0]; oldY [0] = newY [0];
- }
- tracking = (eventType != OS.GDK_BUTTON_RELEASE);
- break;
- case OS.GDK_KEY_PRESS:
-// error(SWT.ERROR_NOT_IMPLEMENTED);
- /*
- XKeyEvent keyEvent = new XKeyEvent ();
- OS.memmove (keyEvent, xEvent, XKeyEvent.sizeof);
- if (keyEvent.keycode != 0) {
- int [] keysym = new int [1];
- OS.XLookupString (keyEvent, null, 0, keysym, null);
- keysym [0] &= 0xFFFF;
- tracking = keysym [0] != OS.XK_Escape && keysym [0] != OS.XK_Cancel;
- cancelled = !tracking;
- }*/
- break;
- } // switch
- } // while
- drawRectangles(); // clean up our mess
- tracking = false;
- return !cancelled;
-}
-
-
-
-private void drawRectangles () {
- int xWindow = calculateWindow();
- if (parent != null) {
- if (parent.isDisposed ()) return;
- parent.getShell ().update ();
- } else {
- display.update ();
- }
-
- int gc = OS.gdk_gc_new(xWindow);
- if (gc==0) error(SWT.ERROR_UNSPECIFIED);
-
- /* White foreground */
- int colormap = OS.gdk_colormap_get_system();
- GdkColor color = new GdkColor();
- OS.gdk_color_white(colormap, color);
- OS.gdk_gc_set_foreground(gc, color);
-
- /* Draw on top of inferior widgets */
- OS.gdk_gc_set_subwindow(gc, OS.GDK_INCLUDE_INFERIORS);
-
- /* XOR */
- OS.gdk_gc_set_function(gc, OS.GDK_XOR);
-
- for (int i=0; i<rectangles.length; i++) {
- Rectangle rect = rectangles [i];
- OS.gdk_draw_rectangle(xWindow, gc, 0, rect.x, rect.y, rect.width, rect.height);
- }
- OS.gdk_gc_destroy(gc);
-}
-/*
- * Wait for an event to show up.
- * Return the event's type as a GdkEventType.
- */
-private int waitEvent() {
- int[] eventType = new int[1];
- int eventPtr;
-
- while (true) {
- eventPtr = OS.gdk_event_get();
- if (eventPtr != 0) {
- // hack, must implement memmove properly
- // GdkEvent event = new GdkEvent(eventPtr);
- OS.memmove(eventType, eventPtr, 4);
- OS.gdk_event_free(eventPtr);
- return eventType[0];
- }
- else {
- try { Thread.sleep(50); } catch (Exception ex) {}
- }
- }
-}
-
-/*
- * Figure which GdkWindow we'll draw on.
- * That's normally the root X window, or the parent's GdkWindow if we have a parent.
- */
-private int calculateWindow() {
- int answer;
- if (parent == null) {
- answer = OS.GDK_ROOT_PARENT();
- } else {
- answer = parent._gdkWindow();
- }
- if (answer==0) error(SWT.ERROR_UNSPECIFIED);
- return answer;
-}
-
-public void setCursor (Cursor value) {
-}
-}
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