X-Git-Url: http://secure.phpeclipse.com
diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/java/hover/SourceViewerInformationControl.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/java/hover/SourceViewerInformationControl.java
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+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/java/hover/SourceViewerInformationControl.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.text.java.hover;
+
+import net.sourceforge.phpdt.ui.text.PHPSourceViewerConfiguration;
+//import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+import net.sourceforge.phpeclipse.phpeditor.JavaSourceViewer;
+import net.sourceforge.phpeclipse.ui.WebUI;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.text.Document;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IInformationControl;
+import org.eclipse.jface.text.IInformationControlExtension;
+import org.eclipse.jface.text.source.ISourceViewer;
+import org.eclipse.jface.text.source.SourceViewer;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.StyledText;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.FocusListener;
+import org.eclipse.swt.events.KeyEvent;
+import org.eclipse.swt.events.KeyListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.graphics.FontData;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Shell;
+
+/**
+ * Source viewer based implementation of IInformationControl.
+ * Displays information in a source viewer.
+ *
+ * @since 3.0
+ */
+public class SourceViewerInformationControl implements IInformationControl,
+ IInformationControlExtension, DisposeListener {
+
+ /** Border thickness in pixels. */
+ private static final int BORDER = 1;
+
+ /** The control's shell */
+ private Shell fShell;
+
+ /** The control's text widget */
+ private StyledText fText;
+
+ /** The control's source viewer */
+ private SourceViewer fViewer;
+
+ /**
+ * The optional status field.
+ *
+ * @since 3.0
+ */
+ private Label fStatusField;
+
+ /**
+ * The separator for the optional status field.
+ *
+ * @since 3.0
+ */
+ private Label fSeparator;
+
+ /**
+ * The font of the optional status text label.
+ *
+ * @since 3.0
+ */
+ private Font fStatusTextFont;
+
+ /**
+ * Creates a default information control with the given shell as parent. The
+ * given information presenter is used to process the information to be
+ * displayed. The given styles are applied to the created styled text
+ * widget.
+ *
+ * @param parent
+ * the parent shell
+ * @param shellStyle
+ * the additional styles for the shell
+ * @param style
+ * the additional styles for the styled text widget
+ */
+ public SourceViewerInformationControl(Shell parent, int shellStyle,
+ int style) {
+ this(parent, shellStyle, style, null);
+ }
+
+ /**
+ * Creates a default information control with the given shell as parent. The
+ * given information presenter is used to process the information to be
+ * displayed. The given styles are applied to the created styled text
+ * widget.
+ *
+ * @param parent
+ * the parent shell
+ * @param shellStyle
+ * the additional styles for the shell
+ * @param style
+ * the additional styles for the styled text widget
+ * @param statusFieldText
+ * the text to be used in the optional status field or
+ * null if the status field should be hidden
+ * @since 3.0
+ */
+ public SourceViewerInformationControl(Shell parent, int shellStyle,
+ int style, String statusFieldText) {
+ GridLayout layout;
+ GridData gd;
+
+ fShell = new Shell(parent, SWT.NO_FOCUS | SWT.ON_TOP | shellStyle);
+ Display display = fShell.getDisplay();
+ fShell.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+
+ Composite composite = fShell;
+ layout = new GridLayout(1, false);
+ int border = ((shellStyle & SWT.NO_TRIM) == 0) ? 0 : BORDER;
+ layout.marginHeight = border;
+ layout.marginWidth = border;
+ composite.setLayout(layout);
+ gd = new GridData(GridData.FILL_HORIZONTAL);
+ composite.setLayoutData(gd);
+
+ if (statusFieldText != null) {
+ composite = new Composite(composite, SWT.NONE);
+ layout = new GridLayout(1, false);
+ layout.marginHeight = 0;
+ layout.marginWidth = 0;
+ composite.setLayout(layout);
+ gd = new GridData(GridData.FILL_BOTH);
+ composite.setLayoutData(gd);
+ composite.setForeground(display
+ .getSystemColor(SWT.COLOR_INFO_FOREGROUND));
+ composite.setBackground(display
+ .getSystemColor(SWT.COLOR_INFO_BACKGROUND));
+ }
+
+ // Source viewer
+ IPreferenceStore store = WebUI.getDefault()
+ .getCombinedPreferenceStore();
+ fViewer = new JavaSourceViewer(composite, null, null, false, style,
+ store);
+ fViewer.configure(new PHPSourceViewerConfiguration(WebUI
+ .getDefault().getJavaTextTools().getColorManager(), store,
+ null, null));
+ fViewer.setEditable(false);
+
+ fText = fViewer.getTextWidget();
+ gd = new GridData(GridData.BEGINNING | GridData.FILL_BOTH);
+ fText.setLayoutData(gd);
+ fText.setForeground(parent.getDisplay().getSystemColor(
+ SWT.COLOR_INFO_FOREGROUND));
+ fText.setBackground(parent.getDisplay().getSystemColor(
+ SWT.COLOR_INFO_BACKGROUND));
+
+ fText.addKeyListener(new KeyListener() {
+
+ public void keyPressed(KeyEvent e) {
+ if (e.character == 0x1B) // ESC
+ fShell.dispose();
+ }
+
+ public void keyReleased(KeyEvent e) {
+ }
+ });
+
+ // Status field
+ if (statusFieldText != null) {
+
+ // Horizontal separator line
+ fSeparator = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL
+ | SWT.LINE_DOT);
+ fSeparator.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+
+ // Status field label
+ fStatusField = new Label(composite, SWT.RIGHT);
+ fStatusField.setText(statusFieldText);
+ Font font = fStatusField.getFont();
+ FontData[] fontDatas = font.getFontData();
+ for (int i = 0; i < fontDatas.length; i++)
+ fontDatas[i].setHeight(fontDatas[i].getHeight() * 9 / 10);
+ fStatusTextFont = new Font(fStatusField.getDisplay(), fontDatas);
+ fStatusField.setFont(fStatusTextFont);
+ GridData gd2 = new GridData(GridData.FILL_VERTICAL
+ | GridData.FILL_HORIZONTAL
+ | GridData.HORIZONTAL_ALIGN_BEGINNING
+ | GridData.VERTICAL_ALIGN_BEGINNING);
+ fStatusField.setLayoutData(gd2);
+
+ // Regarding the color see bug 41128
+ fStatusField.setForeground(display
+ .getSystemColor(SWT.COLOR_WIDGET_DARK_SHADOW));
+
+ fStatusField.setBackground(display
+ .getSystemColor(SWT.COLOR_INFO_BACKGROUND));
+ }
+
+ addDisposeListener(this);
+ }
+
+ /**
+ * Creates a default information control with the given shell as parent. The
+ * given information presenter is used to process the information to be
+ * displayed. The given styles are applied to the created styled text
+ * widget.
+ *
+ * @param parent
+ * the parent shell
+ * @param style
+ * the additional styles for the styled text widget
+ */
+ public SourceViewerInformationControl(Shell parent, int style) {
+ this(parent, SWT.NO_TRIM, style);
+ }
+
+ /**
+ * Creates a default information control with the given shell as parent. The
+ * given information presenter is used to process the information to be
+ * displayed. The given styles are applied to the created styled text
+ * widget.
+ *
+ * @param parent
+ * the parent shell
+ * @param style
+ * the additional styles for the styled text widget
+ * @param statusFieldText
+ * the text to be used in the optional status field or
+ * null if the status field should be hidden
+ * @since 3.0
+ */
+ public SourceViewerInformationControl(Shell parent, int style,
+ String statusFieldText) {
+ this(parent, SWT.NO_TRIM, style, statusFieldText);
+ }
+
+ /**
+ * Creates a default information control with the given shell as parent. No
+ * information presenter is used to process the information to be displayed.
+ * No additional styles are applied to the styled text widget.
+ *
+ * @param parent
+ * the parent shell
+ */
+ public SourceViewerInformationControl(Shell parent) {
+ this(parent, SWT.NONE);
+ }
+
+ /**
+ * Creates a default information control with the given shell as parent. No
+ * information presenter is used to process the information to be displayed.
+ * No additional styles are applied to the styled text widget.
+ *
+ * @param parent
+ * the parent shell
+ * @param statusFieldText
+ * the text to be used in the optional status field or
+ * null if the status field should be hidden
+ * @since 3.0
+ */
+ public SourceViewerInformationControl(Shell parent, String statusFieldText) {
+ this(parent, SWT.NONE, statusFieldText);
+ }
+
+ /*
+ * @see org.eclipse.jface.text.IInformationControlExtension2#setInput(java.lang.Object)
+ */
+ public void setInput(Object input) {
+ if (input instanceof String)
+ setInformation((String) input);
+ else
+ setInformation(null);
+ }
+
+ /*
+ * @see IInformationControl#setInformation(String)
+ */
+ public void setInformation(String content) {
+ if (content == null) {
+ fViewer.setInput(null);
+ return;
+ }
+
+ IDocument doc = new Document(content);
+ WebUI.getDefault().getJavaTextTools()
+ .setupJavaDocumentPartitioner(doc);
+
+ fViewer.setInput(doc);
+ }
+
+ /*
+ * @see IInformationControl#setVisible(boolean)
+ */
+ public void setVisible(boolean visible) {
+ fShell.setVisible(visible);
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @since 3.0
+ */
+ public void widgetDisposed(DisposeEvent event) {
+ if (fStatusTextFont != null && !fStatusTextFont.isDisposed())
+ fStatusTextFont.dispose();
+
+ fStatusTextFont = null;
+ fShell = null;
+ fText = null;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ public final void dispose() {
+ if (fShell != null && !fShell.isDisposed())
+ fShell.dispose();
+ else
+ widgetDisposed(null);
+ }
+
+ /*
+ * @see IInformationControl#setSize(int, int)
+ */
+ public void setSize(int width, int height) {
+
+ if (fStatusField != null) {
+ GridData gd = (GridData) fViewer.getTextWidget().getLayoutData();
+ Point statusSize = fStatusField.computeSize(SWT.DEFAULT,
+ SWT.DEFAULT, true);
+ Point separatorSize = fSeparator.computeSize(SWT.DEFAULT,
+ SWT.DEFAULT, true);
+ gd.heightHint = height - statusSize.y - separatorSize.y;
+ }
+ fShell.setSize(width, height);
+
+ if (fStatusField != null)
+ fShell.pack(true);
+ }
+
+ /*
+ * @see IInformationControl#setLocation(Point)
+ */
+ public void setLocation(Point location) {
+ Rectangle trim = fShell.computeTrim(0, 0, 0, 0);
+ Point textLocation = fText.getLocation();
+ location.x += trim.x - textLocation.x;
+ location.y += trim.y - textLocation.y;
+ fShell.setLocation(location);
+ }
+
+ /*
+ * @see IInformationControl#setSizeConstraints(int, int)
+ */
+ public void setSizeConstraints(int maxWidth, int maxHeight) {
+ maxWidth = maxHeight;
+ }
+
+ /*
+ * @see IInformationControl#computeSizeHint()
+ */
+ public Point computeSizeHint() {
+ return fShell.computeSize(SWT.DEFAULT, SWT.DEFAULT);
+ }
+
+ /*
+ * @see IInformationControl#addDisposeListener(DisposeListener)
+ */
+ public void addDisposeListener(DisposeListener listener) {
+ fShell.addDisposeListener(listener);
+ }
+
+ /*
+ * @see IInformationControl#removeDisposeListener(DisposeListener)
+ */
+ public void removeDisposeListener(DisposeListener listener) {
+ fShell.removeDisposeListener(listener);
+ }
+
+ /*
+ * @see IInformationControl#setForegroundColor(Color)
+ */
+ public void setForegroundColor(Color foreground) {
+ fText.setForeground(foreground);
+ }
+
+ /*
+ * @see IInformationControl#setBackgroundColor(Color)
+ */
+ public void setBackgroundColor(Color background) {
+ fText.setBackground(background);
+ }
+
+ /*
+ * @see IInformationControl#isFocusControl()
+ */
+ public boolean isFocusControl() {
+ return fText.isFocusControl();
+ }
+
+ /*
+ * @see IInformationControl#setFocus()
+ */
+ public void setFocus() {
+ fShell.forceFocus();
+ fText.setFocus();
+ }
+
+ /*
+ * @see IInformationControl#addFocusListener(FocusListener)
+ */
+ public void addFocusListener(FocusListener listener) {
+ fText.addFocusListener(listener);
+ }
+
+ /*
+ * @see IInformationControl#removeFocusListener(FocusListener)
+ */
+ public void removeFocusListener(FocusListener listener) {
+ fText.removeFocusListener(listener);
+ }
+
+ /*
+ * @see IInformationControlExtension#hasContents()
+ */
+ public boolean hasContents() {
+ return fText.getCharCount() > 0;
+ }
+
+ protected ISourceViewer getViewer() {
+ return fViewer;
+ }
+}