123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277 |
- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render.awt;
-
- /*
- * originally contributed by
- * Juergen Verwohlt: Juergen.Verwohlt@jCatalog.com,
- * Rainer Steinkuhle: Rainer.Steinkuhle@jCatalog.com,
- * Stanislav Gorkhover: Stanislav.Gorkhover@jCatalog.com
- */
-
- // Java
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.geom.Rectangle2D;
- import java.awt.geom.Point2D;
- import java.awt.print.PageFormat;
- import java.awt.print.Pageable;
- import java.awt.print.Paper;
- import java.awt.print.Printable;
- import java.io.IOException;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.apps.FopFactoryConfigurator;
- import org.apache.fop.apps.MimeConstants;
- import org.apache.fop.area.Area;
- import org.apache.fop.area.PageViewport;
- import org.apache.fop.render.awt.viewer.PreviewDialog;
- import org.apache.fop.render.awt.viewer.Renderable;
- import org.apache.fop.render.awt.viewer.StatusListener;
- import org.apache.fop.render.java2d.Java2DRenderer;
- import org.apache.fop.render.extensions.prepress.PageScale;
-
- /**
- * The AWTRender outputs the pages generated by the layout engine to a Swing
- * window. This Swing window serves as default viewer for the -awt switch and as
- * an example of how to embed the AWTRenderer into an AWT/Swing application.
- */
- public class AWTRenderer extends Java2DRenderer implements Pageable {
-
- /** The MIME type for AWT-Rendering */
- public static final String MIME_TYPE = MimeConstants.MIME_FOP_AWT_PREVIEW;
-
- /** flag for debugging */
- public boolean debug;
-
- /** If true, preview dialog is shown. */
- public boolean dialogDisplay = true;
-
- /** true if the preview dialog should be the main window of the application */
- private boolean previewAsMainWindow;
-
- /**
- * Renderable instance that can be used to reload and re-render a document after
- * modifications.
- */
- protected Renderable renderable;
-
- /**
- * Will be notified when rendering progresses
- */
- protected StatusListener statusListener = null;
-
-
- /**
- * Creates a new AWTRenderer instance.
- */
- public AWTRenderer() {
- this(false);
- }
-
- /**
- * Creates a new AWTRenderer instance.
- * @param previewAsMainWindow true if the preview dialog created by the renderer should be
- * the main window of the application.
- */
- public AWTRenderer(boolean previewAsMainWindow) {
- this.previewAsMainWindow = previewAsMainWindow;
- }
-
- /** {@inheritDoc} */
- public void setUserAgent(FOUserAgent foUserAgent) {
- super.setUserAgent(foUserAgent);
- if (dialogDisplay) {
- setStatusListener(PreviewDialog.createPreviewDialog(userAgent, this.renderable,
- this.previewAsMainWindow));
- }
- }
-
- /**
- * A Renderable instance can be set so the Preview Dialog can enable the "Reload" button
- * which causes the current document to be reprocessed and redisplayed.
- * @param renderable the Renderable instance.
- */
- public void setRenderable(Renderable renderable) {
- this.renderable = renderable;
- }
-
- /**
- * Sets whether the preview dialog should be created and displayed when
- * the rendering is finished.
- * @param show If false, preview dialog is not shown. True by default
- */
- public void setPreviewDialogDisplayed(boolean show) {
- dialogDisplay = show;
- }
-
- /**
- * {@inheritDoc}
- */
- public void renderPage(PageViewport pageViewport) throws IOException {
-
- super.renderPage(pageViewport);
- if (statusListener != null) {
- statusListener.notifyPageRendered();
- }
- }
-
- /** {@inheritDoc} */
- public void stopRenderer() throws IOException {
- super.stopRenderer();
- if (statusListener != null) {
- statusListener.notifyRendererStopped(); // Refreshes view of page
- }
- }
-
- /**
- * @return the dimensions of the specified page
- * @param pageNum the page number
- * @exception FOPException If the page is out of range or has not been rendered.
- */
- public Dimension getPageImageSize(int pageNum) throws FOPException {
- Rectangle2D bounds = getPageViewport(pageNum).getViewArea();
- pageWidth = (int) Math.round(bounds.getWidth() / 1000f);
- pageHeight = (int) Math.round(bounds.getHeight() / 1000f);
- double scaleX = scaleFactor
- * (25.4 / FopFactoryConfigurator.DEFAULT_TARGET_RESOLUTION)
- / userAgent.getTargetPixelUnitToMillimeter();
- double scaleY = scaleFactor
- * (25.4 / FopFactoryConfigurator.DEFAULT_TARGET_RESOLUTION)
- / userAgent.getTargetPixelUnitToMillimeter();
- if (getPageViewport(pageNum).getForeignAttributes() != null) {
- String scale = (String) getPageViewport(pageNum).getForeignAttributes().get(
- PageScale.EXT_PAGE_SCALE);
- Point2D scales = PageScale.getScale(scale);
- if (scales != null) {
- scaleX *= scales.getX();
- scaleY *= scales.getY();
- }
- }
- int bitmapWidth = (int) ((pageWidth * scaleX) + 0.5);
- int bitmapHeight = (int) ((pageHeight * scaleY) + 0.5);
- return new Dimension(bitmapWidth, bitmapHeight);
- }
-
- /** {@inheritDoc} */
- public PageFormat getPageFormat(int pageIndex)
- throws IndexOutOfBoundsException {
- try {
- if (pageIndex >= getNumberOfPages()) {
- return null;
- }
-
- PageFormat pageFormat = new PageFormat();
-
- Paper paper = new Paper();
-
- Rectangle2D dim = getPageViewport(pageIndex).getViewArea();
- double width = dim.getWidth();
- double height = dim.getHeight();
-
- // if the width is greater than the height assume lanscape mode
- // and swap the width and height values in the paper format
- if (width > height) {
- paper.setImageableArea(0, 0, height / 1000d, width / 1000d);
- paper.setSize(height / 1000d, width / 1000d);
- pageFormat.setOrientation(PageFormat.LANDSCAPE);
- } else {
- paper.setImageableArea(0, 0, width / 1000d, height / 1000d);
- paper.setSize(width / 1000d, height / 1000d);
- pageFormat.setOrientation(PageFormat.PORTRAIT);
- }
- pageFormat.setPaper(paper);
- return pageFormat;
- } catch (FOPException fopEx) {
- throw new IndexOutOfBoundsException(fopEx.getMessage());
- }
- }
-
- /** {@inheritDoc} */
- public Printable getPrintable(int pageIndex)
- throws IndexOutOfBoundsException {
- return this;
- }
-
- /** {@inheritDoc} */
- public boolean supportsOutOfOrder() {
- return false;
- }
-
- /** {@inheritDoc} */
- public String getMimeType() {
- return MIME_TYPE;
- }
-
- /**
- * Draws the background and borders and adds a basic debug view // TODO
- * implement visual-debugging as standalone
- *
- * {@inheritDoc}
- * float, float, float, float)
- *
- * @param area the area to get the traits from
- * @param startx the start x position
- * @param starty the start y position
- * @param width the width of the area
- * @param height the height of the area
- */
- protected void drawBackAndBorders(Area area, float startx, float starty,
- float width, float height) {
-
- if (debug) {
- debugBackAndBorders(area, startx, starty, width, height);
- }
-
- super.drawBackAndBorders(area, startx, starty, width, height);
- }
-
- /** Draws a thin border around every area to help debugging */
- private void debugBackAndBorders(Area area, float startx, float starty,
- float width, float height) {
-
- // saves the graphics state in a stack
- saveGraphicsState();
-
- Color col = new Color(0.7f, 0.7f, 0.7f);
- state.updateColor(col);
- state.updateStroke(0.4f, EN_SOLID);
- state.getGraph().draw(
- new Rectangle2D.Float(startx, starty, width, height));
-
- // restores the last graphics state from the stack
- restoreGraphicsState();
- }
-
- /** @return the StatusListener. */
- public StatusListener getStatusListener() {
- return statusListener;
- }
-
- /**
- * Sets a StatusListener this renderer uses to notify about events.
- * @param statusListener The StatusListener to set.
- */
- public void setStatusListener(StatusListener statusListener) {
- this.statusListener = statusListener;
- }
-
- }
|