| package org.eclipse.epsilon.picto; |
| |
| import java.io.File; |
| |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.swt.browser.Browser; |
| import org.eclipse.swt.graphics.Point; |
| |
| public class ViewRenderer { |
| |
| protected Browser browser; |
| protected double zoom = 1.0; |
| |
| public ViewRenderer(Browser browser) { |
| this.browser = browser; |
| } |
| |
| public Browser getBrowser() { |
| return browser; |
| } |
| |
| public Point getScrollPosition() { |
| Double scrollX = (Double) browser.evaluate("return window.pageXOffset;"); |
| Double scrollY = (Double) browser.evaluate("return window.pageYOffset;"); |
| return new Point(scrollX.intValue(), scrollY.intValue()); |
| } |
| |
| public Point getPrintableArea() { |
| return new Point( |
| ((Double) browser.evaluate("return document.body.scrollWidth")).intValue(), |
| ((Double) browser.evaluate("return document.body.scrollHeight")).intValue()); |
| } |
| |
| public void setScrollPosition(Point point) { |
| browser.evaluate("window.scroll(" + point.x + ", " + point.y + ");"); |
| } |
| |
| public void zoom(ZoomType type) { |
| if (type == ZoomType.IN) zoom = Math.min(zoom + 0.1, 3.0); |
| else if (type == ZoomType.OUT) zoom = Math.max(0, zoom - 0.1); |
| else zoom = 1.0; |
| |
| browser.execute("javascript:document.body.style.zoom=" + zoom + ";"); |
| } |
| |
| public double getZoom() { |
| return zoom; |
| } |
| |
| protected void display(String text) { |
| browser.setText(text); |
| } |
| |
| protected void display(File file) { |
| browser.setUrl(URI.createFileURI(file.getAbsolutePath()).toString()); |
| } |
| |
| public void nothingToRender() { |
| display("<html>Nothing to render.</html>"); |
| } |
| |
| public enum ZoomType { |
| IN, |
| OUT, |
| ACTUAL |
| } |
| } |
