98 lines
3.5 KiB
Java
98 lines
3.5 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.sl.draw;
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import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Graphics2D;
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import java.awt.geom.AffineTransform;
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import org.apache.poi.sl.usermodel.MasterSheet;
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import org.apache.poi.sl.usermodel.Shape;
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import org.apache.poi.sl.usermodel.Sheet;
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public class DrawSheet implements Drawable {
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protected final Sheet<?,?> sheet;
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public DrawSheet(Sheet<?,?> sheet) {
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this.sheet = sheet;
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}
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@Override
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public void draw(Graphics2D graphics) {
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Dimension dim = sheet.getSlideShow().getPageSize();
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Color whiteTrans = new Color(1f,1f,1f,0f);
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graphics.setColor(whiteTrans);
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graphics.fillRect(0, 0, (int)dim.getWidth(), (int)dim.getHeight());
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DrawFactory drawFact = DrawFactory.getInstance(graphics);
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MasterSheet<?,?> master = sheet.getMasterSheet();
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if(sheet.getFollowMasterGraphics() && master != null) {
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Drawable drawer = drawFact.getDrawable(master);
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drawer.draw(graphics);
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}
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graphics.setRenderingHint(Drawable.GROUP_TRANSFORM, new AffineTransform());
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for (Shape<?,?> shape : sheet.getShapes()) {
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if(!canDraw(graphics, shape)) {
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continue;
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}
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// remember the initial transform and restore it after we are done with drawing
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AffineTransform at = graphics.getTransform();
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// concrete implementations can make sense of this hint,
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// for example PSGraphics2D or PDFGraphics2D would call gsave() / grestore
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graphics.setRenderingHint(Drawable.GSAVE, true);
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// apply rotation and flipping
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Drawable drawer = drawFact.getDrawable(shape);
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drawer.applyTransform(graphics);
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// draw stuff
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drawer.draw(graphics);
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// restore the coordinate system
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graphics.setTransform(at);
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graphics.setRenderingHint(Drawable.GRESTORE, true);
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}
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}
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@Override
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public void applyTransform(Graphics2D context) {
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}
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@Override
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public void drawContent(Graphics2D context) {
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}
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/**
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* Checks if this <code>sheet</code> displays the specified shape.
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*
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* Subclasses can override it and skip certain shapes from drawings,
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* for instance, slide masters and layouts don't display placeholders
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*/
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protected boolean canDraw(Graphics2D graphics, Shape<?,?> shape){
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return true;
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}
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}
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