/*******************************************************************************
* Copyright (c) 2016 Fabio Zadrozny 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:
* Fabio Zadrozny <fabiofz@gmail.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.e4.ui.css.swt.properties.custom;
import org.eclipse.e4.ui.css.core.dom.properties.ICSSPropertyHandler;
import org.eclipse.e4.ui.css.core.engine.CSSEngine;
import org.eclipse.e4.ui.css.core.impl.dom.Measure;
import org.eclipse.e4.ui.css.swt.dom.StyledTextElement;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.graphics.Color;
import org.w3c.css.sac.LexicalUnit;
import org.w3c.dom.css.CSSValue;
@SuppressWarnings("restriction")
public class CSSPropertyStyledTextScrollbarSWTHandler implements ICSSPropertyHandler {
public static final String SWT_SCROLLBAR_THEMED = "swt-scrollbar-themed"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_BACKGROUND_COLOR = "swt-scrollbar-background-color"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_FOREGROUND_COLOR = "swt-scrollbar-foreground-color"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_WIDTH = "swt-scrollbar-width"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_MOUSE_NEAR_SCROLL_WIDTH = "swt-scrollbar-mouse-near-scroll-width"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_VERTICAL_VISIBLE = "swt-scrollbar-vertical-visible"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_HORIZONTAL_VISIBLE = "swt-scrollbar-horizontal-visible"; //$NON-NLS-1$
public static final String SWT_SCROLLBAR_BORDER_RADIUS = "swt-scrollbar-border-radius"; //$NON-NLS-1$
@Override
public boolean applyCSSProperty(Object element, String property, CSSValue value, String pseudo, CSSEngine engine)
throws Exception {
// sanity checks for the CSS property
if (!(element instanceof StyledTextElement)) {
return false;
}
if (!(value.getCssValueType() == CSSValue.CSS_PRIMITIVE_VALUE)) {
return false;
}
StyledTextElement styledTextElement = (StyledTextElement) element;
StyledText styledText = styledTextElement.getStyledText();
if (SWT_SCROLLBAR_BACKGROUND_COLOR.equals(property)) {
Color newColor = (Color) engine.convert(value, Color.class, styledText.getDisplay());
styledTextElement.setScrollBarBackgroundColor(newColor);
} else if (SWT_SCROLLBAR_FOREGROUND_COLOR.equals(property)) {
Color newColor = (Color) engine.convert(value, Color.class, styledText.getDisplay());
styledTextElement.setScrollBarForegroundColor(newColor);
} else if (SWT_SCROLLBAR_WIDTH.equals(property)) {
if (value instanceof Measure) {
Measure measure = (Measure) value;
int width = (int) measure.getFloatValue(LexicalUnit.SAC_PIXEL);
styledTextElement.setScrollBarWidth(width);
}
} else if (SWT_SCROLLBAR_MOUSE_NEAR_SCROLL_WIDTH.equals(property)) {
if (value instanceof Measure) {
Measure measure = (Measure) value;
int width = (int) measure.getFloatValue(LexicalUnit.SAC_PIXEL);
styledTextElement.setMouseNearScrollScrollBarWidth(width);
}
} else if (SWT_SCROLLBAR_BORDER_RADIUS.equals(property)) {
if (value instanceof Measure) {
Measure measure = (Measure) value;
int radius = (int) measure.getFloatValue(LexicalUnit.SAC_PIXEL);
styledTextElement.setScrollBarBorderRadius(radius);
}
} else if (SWT_SCROLLBAR_VERTICAL_VISIBLE.equals(property)) {
Boolean visible = (Boolean) engine.convert(value, Boolean.class, styledText.getDisplay());
styledTextElement.setVerticalScrollBarVisible(visible);
} else if (SWT_SCROLLBAR_HORIZONTAL_VISIBLE.equals(property)) {
Boolean visible = (Boolean) engine.convert(value, Boolean.class, styledText.getDisplay());
styledTextElement.setHorizontalScrollBarVisible(visible);
} else if (SWT_SCROLLBAR_THEMED.equals(property)) {
String cssText = value.getCssText();
styledTextElement.setScrollBarThemed(cssText);
}
return false;
}
}