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/*****************************************************************************
* Copyright (c) 2013 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
* Adapted code from EMF-Facet Nattable integration
*****************************************************************************/
package org.eclipse.papyrus.infra.nattable.utils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Display;
public final class DefaultSizeUtils {
private static final float MARGINE = 4;
private static final float FONT_CELL_RATIO = 2;
private static final float WIDTH_HEIGHT_RATIO = 8;
private static final float ROW_HEADER_RATIO = 2; //Row header width height ratio
private static final float DEFAULT_DPI = 96;
private DefaultSizeUtils() {
// Must not be used.
}
/**
* windows : 150%
* dipX=dpiY = 150
* fontName = Segoe UI
* fontHeight = 9
* value = 33
*
* windows 125% :
* dipX = dpiY = 120
* fontName = Segoe UI
* fontHeight = 9
* value = 27,5
*
* windows 100%
* dipX = dpiY = 96
* fontName = Segoe UI
* fontHeight = 9
* value = 22
*
* @return
* the default cell height to use, according to the dpi used by the system
*/
public static int getDefaultCellHeight() {
float dpiY = Display.getDefault().getDPI().y;
FontData[] fd = Display.getDefault().getSystemFont().getFontData();
//fd[0].getName();
float height = (fd[0].getHeight() * DefaultSizeUtils.FONT_CELL_RATIO) + DefaultSizeUtils.MARGINE;
float value = height * (dpiY / DEFAULT_DPI);
return (int)Math.ceil(value);
}
/**
*
* @return
* the default cell width to use, according to the dpi used by the system
*/
public static int getDefaultCellWidth() {
float width = DefaultSizeUtils.getDefaultCellHeight() * DefaultSizeUtils.WIDTH_HEIGHT_RATIO;
return (int)Math.ceil(width);
}
//not used
public static int getDefaultRowHeaderWidth() {
float width = DefaultSizeUtils.getDefaultCellHeight() * DefaultSizeUtils.ROW_HEADER_RATIO;
return (int)Math.ceil(width);
}
//not used
public static Font getHeaderFont() {
FontData[] fd = Display.getDefault().getSystemFont().getFontData().clone();
fd[0].setStyle(SWT.BOLD);
Font headerFont = new Font(Display.getDefault(), fd);
return headerFont;
}
}
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