Attachment 162052 Details for Bug 305864 – snippet

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snippet

ListItemSnippet.java (text/x-java), 3.00 KB, created by Michael Seele

on 2010-03-15 11:17:22 EDT

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Description:

Filename:

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Creator: Michael Seele

Created: 2010-03-15 11:17:22 EDT

Size: 3.00 KB

patch

obsolete

>package org.eclipse.swt.widgets;
>
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.graphics.Rectangle;
>import org.eclipse.swt.internal.gtk.GdkRectangle;
>import org.eclipse.swt.internal.gtk.OS;
>import org.eclipse.swt.layout.FillLayout;
>
>public class ListItemSnippet {
>
>	public static void main(String[] args) {
>		final Display display = new Display();
>		final Shell shell = new Shell(display);
>		shell.setText("ListItemSnippet"); //$NON-NLS-1$
>		shell.setLayout(new FillLayout());
>
>		final List list = new List(shell, SWT.BORDER | SWT.SINGLE | SWT.V_SCROLL);
>
>		//		list.setFont(new Font(display, "Arial", 10, SWT.NONE));
>
>		list.setData("name", "list"); //$NON-NLS-1$ //$NON-NLS-2$
>		for (int i = 0; i < 100; i++) {
>			list.add("Item " + i); //$NON-NLS-1$
>		}
>		shell.setBounds(100, 100, 150, 200);
>		shell.open();
>
>		new Thread() {
>			@Override
>			public void run() {
>				try {
>					Thread.sleep(1000);
>				} catch (InterruptedException e) {
>					e.printStackTrace();
>				}
>				display.syncExec(new Runnable() {
>					public void run() {
>						for (int i = 0; i <= 6; i++) {
>							Rectangle realBounds = getRealBounds(list, i);
>							Rectangle realBoundsDisplay = list.getDisplay().map(list, null, realBounds);
>							System.err.println(i + ": " + getBounds(list, i) + " " + realBoundsDisplay + " >> " + realBounds);
>						}
>					}
>				});
>			}
>		}.start();
>
>		while (!shell.isDisposed()) {
>			if (!display.readAndDispatch())
>				display.sleep();
>		}
>		display.dispose();
>	}
>
>	private static Rectangle getBounds(List list, int index) {
>		Rectangle listBounds = list.getClientArea();
>		int itemHeight = list.getItemHeight();
>		int y = 0;
>		ScrollBar verticalBar = list.getVerticalBar();
>		if (verticalBar != null) {
>			double maxHeight = list.getItemCount() * itemHeight;
>			double scrollBarHeight = verticalBar.getMaximum() - verticalBar.getMinimum();
>			double yOffset = (maxHeight * verticalBar.getSelection()) / scrollBarHeight;
>			y = (int) ((index * itemHeight) - yOffset);
>		} else {
>			int difference = index - list.getTopIndex();
>			y = listBounds.y + (difference * itemHeight);
>		}
>		Rectangle rect = new Rectangle(listBounds.x, listBounds.y + y, listBounds.width, itemHeight);
>		return list.getDisplay().map(list.getParent(), null, rect);
>	}
>
>	private static Rectangle getRealBounds(List list, int index) {
>		int /*long*/parentHandle = list.handle;
>		int /*long*/column = OS.gtk_tree_view_get_column(parentHandle, 0);
>		int /*long*/iter = OS.g_malloc(OS.GtkTreeIter_sizeof());
>		OS.gtk_tree_model_get_iter_first(list.modelHandle, iter);
>		for (int i = 0; i < index; i++) {
>			OS.gtk_tree_model_iter_next(list.modelHandle, iter);
>		}
>		int /*long*/path = OS.gtk_tree_model_get_path(list.modelHandle, iter);
>		OS.gtk_widget_realize(parentHandle);
>		GdkRectangle rect = new GdkRectangle();
>		OS.gtk_tree_view_get_cell_area(parentHandle, path, column, rect);
>		OS.gtk_tree_path_free(path);
>		OS.g_free(iter);
>		int width = OS.gtk_tree_view_column_get_visible(column) ? rect.width + 1 : 0;
>		return new Rectangle(rect.x, rect.y, width, rect.height + 1);
>	}
>
>}

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Attachments on bug 305864: 162051 | 162052