/*******************************************************************************
- * Copyright (c) 2009, 2011, 2012 Ericsson
- *
+ * Copyright (c) 2009, 2013 Ericsson
+ *
* 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:
* Wiliam Bourque - Adapted from SpinnerGroup (in TimeFrameView)
* Francois Chouinard - Cleanup and refactoring
* Francois Chouinard - Moved from LTTng to TMF
- *******************************************************************************/
+ * Francois Chouinard - Better handling of control display, support for signals
+ * Patrick Tasse - Update for mouse wheel zoom
+ *******************************************************************************/
package org.eclipse.linuxtools.tmf.ui.views.histogram;
+import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
+import org.eclipse.swt.events.MouseWheelListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Text;
/**
- * <b><u>HistogramTextControl</u></b>
- * <p>
* This control provides a group containing a text control.
+ *
+ * @version 1.1
+ * @author Francois Chouinard
*/
public abstract class HistogramTextControl implements FocusListener, KeyListener {
// Attributes
// ------------------------------------------------------------------------
+ /**
+ * The parent histogram view.
+ */
protected final HistogramView fParentView;
- private final Composite fParent;
- // Controls
+ // Controls data
+ private final Composite fParent;
+ private Font fFont;
private final Group fGroup;
+
+ /**
+ * The text value field.
+ */
protected final Text fTextValue;
+
private long fValue;
// ------------------------------------------------------------------------
// Constructors
// ------------------------------------------------------------------------
- public HistogramTextControl(HistogramView parentView, Composite parent, int textStyle, int groupStyle) {
- this(parentView, parent, textStyle, groupStyle, "", HistogramUtils.nanosecondsToString(0L)); //$NON-NLS-1$
- }
-
- public HistogramTextControl(HistogramView parentView, Composite parent, int textStyle, int groupStyle, String groupValue, String textValue) {
-
+ /**
+ * Constructor with given group and text values.
+ *
+ * @param parentView The parent histogram view.
+ * @param parent The parent composite
+ * @param label The text label
+ * @param value The initial value
+ * @since 2.0
+ */
+ public HistogramTextControl(HistogramView parentView, Composite parent, String label, long value)
+ {
fParentView = parentView;
fParent = parent;
final int fontSizeAdjustment = -1;
final Font font = parent.getFont();
final FontData fontData = font.getFontData()[0];
- final Font adjustedFont = new Font(font.getDevice(), fontData.getName(), fontData.getHeight() + fontSizeAdjustment, fontData.getStyle());
-
- // --------------------------------------------------------------------
- // Pre-compute the size of the control
- // --------------------------------------------------------------------
-
- final String longestStringValue = "." + Long.MAX_VALUE; //$NON-NLS-1$
- final int maxChars = longestStringValue.length();
- final int textBoxSize = HistogramUtils.getTextSizeInControl(parent, longestStringValue);
+ fFont = new Font(font.getDevice(), fontData.getName(), fontData.getHeight() + fontSizeAdjustment, fontData.getStyle());
// --------------------------------------------------------------------
// Create the group
GridData gridData;
// Group control
- gridLayout = new GridLayout(1, false);
+ gridLayout = new GridLayout(1, true);
gridLayout.horizontalSpacing = 0;
gridLayout.verticalSpacing = 0;
- fGroup = new Group(fParent, groupStyle);
- fGroup.setText(groupValue);
- fGroup.setFont(adjustedFont);
+ fGroup = new Group(fParent, SWT.SHADOW_NONE);
+ fGroup.setText(label);
+ fGroup.setFont(fFont);
fGroup.setLayout(gridLayout);
// Group control
gridData = new GridData(SWT.LEFT, SWT.CENTER, true, false);
gridData.horizontalIndent = 0;
gridData.verticalIndent = 0;
- gridData.minimumWidth = textBoxSize;
- fTextValue = new Text(fGroup, textStyle);
- fTextValue.setTextLimit(maxChars);
- fTextValue.setText(textValue);
- fTextValue.setFont(adjustedFont);
+ fTextValue = new Text(fGroup, SWT.BORDER);
+ fTextValue.setFont(fFont);
fTextValue.setLayoutData(gridData);
// --------------------------------------------------------------------
fTextValue.addFocusListener(this);
fTextValue.addKeyListener(this);
+
+ TmfSignalManager.register(this);
+ }
+
+ /**
+ * Dispose of the widget
+ * @since 2.0
+ */
+ public void dispose() {
+ TmfSignalManager.deregister(this);
}
// ------------------------------------------------------------------------
// Accessors
// ------------------------------------------------------------------------
- // State
+ /**
+ * Returns if widget isDisposed or not
+ * @return <code>true</code> if widget is disposed else <code>false</code>
+ */
public boolean isDisposed() {
return fGroup.isDisposed();
}
// Operations
// ------------------------------------------------------------------------
+ /**
+ * Updates the text value.
+ */
protected abstract void updateValue();
- // LayoutData
+ /**
+ * Set the Grid Layout Data for the group.
+ * @param layoutData A GridData to set.
+ */
public void setLayoutData(GridData layoutData) {
fGroup.setLayoutData(layoutData);
}
- // Time value
- public void setValue(String timeString) {
- long timeValue = HistogramUtils.stringToNanoseconds(timeString);
- setValue(timeValue);
- }
-
- public void setValue(final long time) {
+ /**
+ * The time value in to set in the text field.
+ *
+ * @param time the time to set
+ * @param displayTime the display value
+ * @since 2.0
+ */
+ protected void setValue(final long time, final String displayTime) {
// If this is the UI thread, process now
Display display = Display.getCurrent();
if (display != null) {
- fValue = time;
- fTextValue.setText(HistogramUtils.nanosecondsToString(time));
+ if (!isDisposed()) {
+ fValue = time;
+ fTextValue.setText(displayTime);
+ fParent.getParent().layout();
+ }
return;
}
- // Call "recursively" from the UI thread
+ // Call self from the UI thread
if (!isDisposed()) {
Display.getDefault().asyncExec(new Runnable() {
@Override
public void run() {
if (!isDisposed()) {
- setValue(time);
+ setValue(time, displayTime);
}
}
});
}
}
+ /**
+ * @param time the time value to display
+ */
+ public abstract void setValue(long time);
+
+ /**
+ * Returns the time value.
+ * @return time value.
+ */
public long getValue() {
return fValue;
}
+ /**
+ * Add a mouse wheel listener to the text control
+ * @param listener the mouse wheel listener
+ * @since 2.0
+ */
+ public void addMouseWheelListener(MouseWheelListener listener) {
+ fTextValue.addMouseWheelListener(listener);
+ }
+
+ /**
+ * Remove a mouse wheel listener from the text control
+ * @param listener the mouse wheel listener
+ * @since 2.0
+ */
+ public void removeMouseWheelListener(MouseWheelListener listener) {
+ fTextValue.removeMouseWheelListener(listener);
+ }
+
// ------------------------------------------------------------------------
// FocusListener
// ------------------------------------------------------------------------
projects / deliverable / tracecompass.git / blobdiff