/*******************************************************************************
* Copyright (c) 2012 Original authors 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:
* Original authors and others - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.persistence;
import static org.eclipse.nebula.widgets.nattable.persistence.IPersistable.DOT;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.BACKGROUND_COLOR;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.BORDER_STYLE;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.FONT;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.FOREGROUND_COLOR;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.HORIZONTAL_ALIGNMENT;
import static org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes.VERTICAL_ALIGNMENT;
import java.util.Properties;
import org.eclipse.nebula.widgets.nattable.style.BorderStyle;
import org.eclipse.nebula.widgets.nattable.style.CellStyleAttributes;
import org.eclipse.nebula.widgets.nattable.style.HorizontalAlignmentEnum;
import org.eclipse.nebula.widgets.nattable.style.Style;
import org.eclipse.nebula.widgets.nattable.style.VerticalAlignmentEnum;
import org.eclipse.nebula.widgets.nattable.util.GUIHelper;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
/**
* Saves and loads the following components of a style to a properties object. -
* Foreground color - Background color - Horizontal alignment - Vertical
* alignment - Font - Border style
*/
public class StylePersistor {
// Style prefix constants
public static final String STYLE_PERSISTENCE_PREFIX = "style"; //$NON-NLS-1$
public static final String BLUE_COLOR_PREFIX = "blue"; //$NON-NLS-1$
public static final String GREEN_COLOR_PREFIX = "green"; //$NON-NLS-1$
public static final String RED_COLOR_PREFIX = "red"; //$NON-NLS-1$
public static final String V_ALIGNMENT_PREFIX = "verticalAlignment"; //$NON-NLS-1$
public static final String H_ALIGNMENT_PREFIX = "horizontalAlignment"; //$NON-NLS-1$
public static final String BG_COLOR_PREFIX = "bg"; //$NON-NLS-1$
public static final String FG_COLOR_PREFIX = "fg"; //$NON-NLS-1$
public static final String FONT_PREFIX = "font"; //$NON-NLS-1$
public static final String BORDER_PREFIX = "border"; //$NON-NLS-1$
// Save
public static void saveStyle(String prefix, Properties properties,
Style style) {
prefix = prefix + DOT + STYLE_PERSISTENCE_PREFIX;
saveColor(prefix + DOT + BG_COLOR_PREFIX, properties,
style.getAttributeValue(BACKGROUND_COLOR));
saveColor(prefix + DOT + FG_COLOR_PREFIX, properties,
style.getAttributeValue(FOREGROUND_COLOR));
saveHAlign(prefix, properties,
style.getAttributeValue(HORIZONTAL_ALIGNMENT));
saveVAlign(prefix, properties,
style.getAttributeValue(VERTICAL_ALIGNMENT));
saveFont(prefix, properties, style.getAttributeValue(FONT));
saveBorder(prefix, properties, style.getAttributeValue(BORDER_STYLE));
}
protected static void saveVAlign(String prefix, Properties properties,
VerticalAlignmentEnum vAlign) {
if (vAlign == null) {
return;
}
properties
.setProperty(prefix + DOT + V_ALIGNMENT_PREFIX, vAlign.name());
}
protected static void saveHAlign(String prefix, Properties properties,
HorizontalAlignmentEnum hAlign) {
if (hAlign == null) {
return;
}
properties
.setProperty(prefix + DOT + H_ALIGNMENT_PREFIX, hAlign.name());
}
protected static void saveBorder(String prefix, Properties properties,
BorderStyle borderStyle) {
if (borderStyle == null) {
return;
}
properties.setProperty(prefix + DOT + BORDER_PREFIX,
String.valueOf(borderStyle.toString()));
}
protected static void saveFont(String prefix, Properties properties,
Font font) {
if (font == null) {
return;
}
properties.setProperty(prefix + DOT + FONT_PREFIX,
String.valueOf(font.getFontData()[0].toString()));
}
protected static void saveColor(String prefix, Properties properties,
Color color) {
if (color == null) {
return;
}
ColorPersistor.saveColor(prefix, properties, color);
}
// Load
public static Style loadStyle(String prefix, Properties properties) {
Style style = new Style();
prefix = prefix + DOT + STYLE_PERSISTENCE_PREFIX;
// BG Color
String bgColorPrefix = prefix + DOT + BG_COLOR_PREFIX;
Color bgColor = loadColor(bgColorPrefix, properties);
if (bgColor != null) {
style.setAttributeValue(CellStyleAttributes.BACKGROUND_COLOR,
bgColor);
}
// FG Color
String fgColorPrefix = prefix + DOT + FG_COLOR_PREFIX;
Color fgColor = loadColor(fgColorPrefix, properties);
if (fgColor != null) {
style.setAttributeValue(CellStyleAttributes.FOREGROUND_COLOR,
fgColor);
}
// Alignment
String hAlignPrefix = prefix + DOT + H_ALIGNMENT_PREFIX;
HorizontalAlignmentEnum hAlign = loadHAlignment(hAlignPrefix,
properties);
if (hAlign != null) {
style.setAttributeValue(CellStyleAttributes.HORIZONTAL_ALIGNMENT,
hAlign);
}
String vAlignPrefix = prefix + DOT + V_ALIGNMENT_PREFIX;
VerticalAlignmentEnum vAlign = loadVAlignment(vAlignPrefix, properties);
if (vAlign != null) {
style.setAttributeValue(CellStyleAttributes.VERTICAL_ALIGNMENT,
vAlign);
}
// Font
String fontPrefix = prefix + DOT + FONT_PREFIX;
Font font = loadFont(fontPrefix, properties);
if (font != null) {
style.setAttributeValue(CellStyleAttributes.FONT, font);
}
// Border Style
String borderPrefix = prefix + DOT + BORDER_PREFIX;
BorderStyle borderStyle = loadBorderStyle(borderPrefix, properties);
if (borderStyle != null) {
style.setAttributeValue(CellStyleAttributes.BORDER_STYLE,
borderStyle);
}
return style;
}
private static BorderStyle loadBorderStyle(String borderPrefix,
Properties properties) {
String borderStyle = properties.getProperty(borderPrefix);
if (borderStyle != null) {
return new BorderStyle(borderStyle);
}
return null;
}
private static Font loadFont(String fontPrefix, Properties properties) {
String fontdata = properties.getProperty(fontPrefix);
if (fontdata != null) {
return GUIHelper.getFont(new FontData(fontdata));
}
return null;
}
private static HorizontalAlignmentEnum loadHAlignment(String hAlignPrefix,
Properties properties) {
String enumName = properties.getProperty(hAlignPrefix);
if (enumName != null) {
return HorizontalAlignmentEnum.valueOf(enumName);
}
return null;
}
private static VerticalAlignmentEnum loadVAlignment(String vAlignPrefix,
Properties properties) {
String enumName = properties.getProperty(vAlignPrefix);
if (enumName != null) {
return VerticalAlignmentEnum.valueOf(enumName);
}
return null;
}
protected static Color loadColor(String prefix, Properties properties) {
return ColorPersistor.loadColor(prefix, properties);
}
}