Mercurial > projects > dwt2
view org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet217.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
author | kntroh |
---|---|
date | Wed, 16 Mar 2011 21:53:53 +0900 |
parents | 4e5843b771cc |
children | 536e43f63c81 |
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/******************************************************************************* * Copyright (c) 2000, 2004 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 * Port to the D programming language: * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ ) *******************************************************************************/ module org.eclipse.swt.snippets.Snippet217; /** * StyledText snippet: embed controls * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ * * @since 3.2 */ import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.custom.StyleRange; import org.eclipse.swt.custom.PaintObjectEvent; import org.eclipse.swt.custom.PaintObjectListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.graphics.FontData; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.GlyphMetrics; import java.lang.all; version(JIVE){ import jive.stacktrace; } const String OBJ_MARKER = "\uFFFC"; void main() { static StyledText styledText; static String text = "This snippet shows how to embed widgets in a StyledText.\n" "Here is one: " ~ OBJ_MARKER ~ ", and here is another: " ~ OBJ_MARKER ~ "."; static int[] offsets; static Control[] controls; static int MARGIN = 5; void addControl(Control control, int offset) { StyleRange style = new StyleRange (); style.start = offset; style.length = OBJ_MARKER.length; control.pack(); Rectangle rect = control.getBounds(); int ascent = 2*rect.height/3; int descent = rect.height - ascent; style.metrics = new GlyphMetrics(ascent + MARGIN, descent + MARGIN, rect.width + 2*MARGIN); styledText.setStyleRange(style); } Display display = new Display(); Font font = new Font(display, "Tahoma", 32f, SWT.NORMAL); Shell shell = new Shell(display); shell.setLayout(new GridLayout()); styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER); styledText.setFont(font); styledText.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); styledText.setText(text); controls = new Control[2]; Button button = new Button(styledText, SWT.PUSH); button.setText("Button 1"); controls[0] = button; Combo combo = new Combo(styledText, SWT.NONE); combo.add("item 1"); combo.add("another item"); controls[1] = combo; offsets = new int[controls.length]; int lastOffset = 0; for (int i = 0; i < controls.length; i++) { int offset = text.indexOf( OBJ_MARKER, lastOffset); offsets[i] = offset; addControl(controls[i], offsets[i]); lastOffset = offset + OBJ_MARKER.length; } void onVerify(Event e) { int start = e.start; int replaceCharCount = e.end - e.start; int newCharCount = e.text.length; for (int i = 0; i < offsets.length; i++) { int offset = offsets[i]; if (start <= offset && offset < start + replaceCharCount) { // this widget is being deleted from the text if (controls[i] !is null && !controls[i].isDisposed()) { controls[i].dispose(); controls[i] = null; } offset = -1; } if (offset != -1 && offset >= start) offset += newCharCount - replaceCharCount; offsets[i] = offset; } } // use a verify listener to keep the offsets up to date styledText.addListener(SWT.Verify, dgListener(&onVerify)); // reposition widgets on paint event styledText.addPaintObjectListener(new class(offsets) PaintObjectListener { int[] offsets; this(int[] offsets_) { this.offsets = offsets_; } public void paintObject(PaintObjectEvent event) { StyleRange style = event.style; int start = style.start; for (int i = 0; i < offsets.length; i++) { int offset = offsets[i]; if (start == offset) { Point pt = controls[i].getSize(); int x = event.x + MARGIN; int y = event.y + event.ascent - 2*pt.y/3; controls[i].setLocation(x, y); break; } } } }); shell.setSize(400, 400); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } font.dispose(); display.dispose(); }