Mercurial > projects > dwt-samples
diff snippets/composite/Snippet9.d @ 78:4a04b6759f98
Clean up directory names
author | John Reimer <terminal.node@gmail.com> |
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date | Sat, 10 May 2008 13:32:45 -0700 |
parents | |
children | 1f0a7a472680 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/snippets/composite/Snippet9.d Sat May 10 13:32:45 2008 -0700 @@ -0,0 +1,92 @@ +/******************************************************************************* + * 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 + * D Port + * Jesse Phillips <Jesse.K.Phillips+D> gmail.com + *******************************************************************************/ +module snippets.composite.Snippit9; + +/* + * Composite example snippet: scroll a child control automatically + * + * For a list of all DWT example snippets see + * http://www.eclipse.org/swt/snippets/ + */ +import dwt.DWT; +import dwt.events.PaintListener; +import dwt.graphics.Color; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.widgets.Composite; +import dwt.widgets.Display; +import dwt.widgets.Event; +import dwt.widgets.Listener; +import dwt.widgets.ScrollBar; +import dwt.widgets.Shell; +import dwt.dwthelper.utils; + +void main () { + auto display = new Display (); + auto shell = new Shell + (display, DWT.SHELL_TRIM | DWT.H_SCROLL | DWT.V_SCROLL); + auto composite = new Composite (shell, DWT.BORDER); + composite.setSize (700, 600); + auto red = display.getSystemColor (DWT.COLOR_RED); + composite.addPaintListener (new class PaintListener { + public void paintControl (PaintEvent e) { + e.gc.setBackground (red); + e.gc.fillOval (5, 5, 690, 590); + } + }); + auto hBar = shell.getHorizontalBar (); + hBar.addListener (DWT.Selection, new class Listener { + public void handleEvent (Event e) { + auto location = composite.getLocation (); + location.x = -hBar.getSelection (); + composite.setLocation (location); + } + }); + ScrollBar vBar = shell.getVerticalBar (); + vBar.addListener (DWT.Selection, new class Listener { + public void handleEvent (Event e) { + Point location = composite.getLocation (); + location.y = -vBar.getSelection (); + composite.setLocation (location); + } + }); + shell.addListener (DWT.Resize, new class Listener { + public void handleEvent (Event e) { + Point size = composite.getSize (); + Rectangle rect = shell.getClientArea (); + hBar.setMaximum (size.x); + vBar.setMaximum (size.y); + hBar.setThumb (Math.min (size.x, rect.width)); + vBar.setThumb (Math.min (size.y, rect.height)); + int hPage = size.x - rect.width; + int vPage = size.y - rect.height; + int hSelection = hBar.getSelection (); + int vSelection = vBar.getSelection (); + Point location = composite.getLocation (); + if (hSelection >= hPage) { + if (hPage <= 0) hSelection = 0; + location.x = -hSelection; + } + if (vSelection >= vPage) { + if (vPage <= 0) vSelection = 0; + location.y = -vSelection; + } + composite.setLocation (location); + } + }); + shell.open (); + while (!shell.isDisposed()) { + if (!display.readAndDispatch ()) display.sleep (); + } + display.dispose (); +}