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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ProgressBar.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ProgressBar.java | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ProgressBar.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ProgressBar.java deleted file mode 100644 index 34f3886d1f..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ProgressBar.java +++ /dev/null @@ -1,302 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.gtk.*; - -/** - * Instances of the receiver represent an unselectable - * user interface object that is used to display progress, - * typically in the form of a bar. - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>SMOOTH, HORIZONTAL, VERTICAL, INDETERMINATE</dd> - * <dt><b>Events:</b></dt> - * <dd>(none)</dd> - * </dl> - * <p> - * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. - * </p><p> - * IMPORTANT: This class is intended to be subclassed <em>only</em> - * within the SWT implementation. - * </p> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#progressbar">ProgressBar snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class ProgressBar extends Control { - int timerId, minimum = 0, maximum = 100, selection = 0; - static final int DELAY = 100; - -/** - * 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 - * lists the style constants that are applicable to the class. - * Style bits are also inherited from superclasses. - * </p> - * - * @param parent a composite control which will be the parent of the new instance (cannot be null) - * @param style the style of control 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#SMOOTH - * @see SWT#HORIZONTAL - * @see SWT#VERTICAL - * @see SWT#INDETERMINATE - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public ProgressBar (Composite parent, int style) { - super (parent, checkStyle(style)); -} - -static int checkStyle (int style) { - style |= SWT.NO_FOCUS; - return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0); -} - -void createHandle (int index) { - state |= HANDLE; - fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0); - if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_fixed_set_has_window (fixedHandle, true); - handle = OS.gtk_progress_bar_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_container_add (fixedHandle, handle); - int orientation = (style & SWT.VERTICAL) != 0 ? OS.GTK_PROGRESS_BOTTOM_TO_TOP : OS.GTK_PROGRESS_LEFT_TO_RIGHT; - OS.gtk_progress_bar_set_orientation (handle, orientation); - if ((style & SWT.INDETERMINATE) != 0) { - timerId = OS.gtk_timeout_add (DELAY, display.windowTimerProc, handle); - } -} - -/** - * Returns the maximum value which the receiver will allow. - * - * @return the maximum - * - * @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 int getMaximum () { - checkWidget (); - return maximum; -} - -/** - * Returns the minimum value which the receiver will allow. - * - * @return the minimum - * - * @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 int getMinimum () { - checkWidget (); - return minimum; -} - -/** - * Returns the single 'selection' that is the receiver's position. - * - * @return the selection - * - * @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 int getSelection () { - checkWidget (); - return selection; -} - -/** - * Returns the state of the receiver. The value will be one of: - * <ul> - * <li>{@link SWT#NORMAL}</li> - * <li>{@link SWT#ERROR}</li> - * <li>{@link SWT#PAUSED}</li> - * </ul> - * - * @return the state - * - * @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> - * - * @since 3.4 - */ -public int getState () { - checkWidget (); - return SWT.NORMAL; -} - -int /*long*/ gtk_realize (int /*long*/ widget) { - int /*long*/ result = super.gtk_realize (widget); - if (result != 0) return result; - /* - * Bug in GTK. When a progress bar has been unrealized after being - * realized at least once, gtk_progress_bar_set_fraction() GP's. The - * fix is to update the progress bar state only when realized and restore - * the state when the progress bar becomes realized. - */ - updateBar (selection, minimum, maximum); - return 0; -} - -void releaseWidget () { - super.releaseWidget (); - if (timerId != 0) OS.gtk_timeout_remove (timerId); - timerId = 0; -} - -void setParentBackground () { - /* - * Bug in GTK. For some reason, some theme managers will crash - * when the progress bar is inheriting the background from a parent. - * The fix is to stop inheriting the background. This is acceptable - * since progress bars do not use the inherited background. - */ -} - -/** - * Sets the maximum value that the receiver will allow. This new - * value will be ignored if it is not greater than the receiver's current - * minimum value. If the new maximum is applied then the receiver's - * selection value will be adjusted if necessary to fall within its new range. - * - * @param value the new maximum, which must be greater than the current minimum - * - * @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 setMaximum (int value) { - checkWidget (); - if (value <= minimum) return; - maximum = value; - selection = Math.min (selection, maximum); - updateBar (selection, minimum, maximum); -} - -/** - * Sets the minimum value that the receiver will allow. This new - * value will be ignored if it is negative or is not less than the receiver's - * current maximum value. If the new minimum is applied then the receiver's - * selection value will be adjusted if necessary to fall within its new range. - * - * @param value the new minimum, which must be nonnegative and less than the current maximum - * - * @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 setMinimum (int value) { - checkWidget (); - if (value < 0 || value >= maximum) return; - minimum = value; - selection = Math.max (selection, minimum); - updateBar (selection, minimum, maximum); -} - -/** - * Sets the single 'selection' that is the receiver's - * position to the argument which must be greater than or equal - * to zero. - * - * @param value the new selection (must be zero or greater) - * - * @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 setSelection (int value) { - checkWidget (); - selection = Math.max (minimum, Math.min (maximum, value)); - updateBar (selection, minimum, maximum); -} - -/** - * Sets the state of the receiver. The state must be one of these values: - * <ul> - * <li>{@link SWT#NORMAL}</li> - * <li>{@link SWT#ERROR}</li> - * <li>{@link SWT#PAUSED}</li> - * </ul> - * - * @param state the new state - * - * @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> - * - * @since 3.4 - */ -public void setState (int state) { - checkWidget (); - //NOT IMPLEMENTED -} - -int /*long*/ timerProc (int /*long*/ widget) { - if (isVisible ()) OS.gtk_progress_bar_pulse (handle); - return 1; -} - -void updateBar (int selection, int minimum, int maximum) { - /* - * Bug in GTK. When a progress bar has been unrealized after being - * realized at least once, gtk_progress_bar_set_fraction() GP's. The - * fix is to update the progress bar state only when realized and restore - * the state when the progress bar becomes realized. - */ - if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_REALIZED) == 0) return; - - double fraction = minimum == maximum ? 1 : (double)(selection - minimum) / (maximum - minimum); - OS.gtk_progress_bar_set_fraction (handle, fraction); - /* - * Feature in GTK. The progress bar does - * not redraw right away when a value is - * changed. This is not strictly incorrect - * but unexpected. The fix is to force all - * outstanding redraws to be delivered. - */ - int /*long*/ window = paintWindow (); - OS.gdk_window_process_updates (window, false); - OS.gdk_flush (); -} -} |