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- /* ====================================================================
- 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.
- ==================================================================== */
-
- package org.apache.poi.sl.draw;
-
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.Graphics2D;
- import java.awt.geom.AffineTransform;
-
- import org.apache.poi.sl.usermodel.MasterSheet;
- import org.apache.poi.sl.usermodel.Shape;
- import org.apache.poi.sl.usermodel.Sheet;
-
-
- public class DrawSheet implements Drawable {
-
- protected final Sheet<?,?> sheet;
-
- public DrawSheet(Sheet<?,?> sheet) {
- this.sheet = sheet;
- }
-
- @Override
- public void draw(Graphics2D graphics) {
- Dimension dim = sheet.getSlideShow().getPageSize();
- Color whiteTrans = new Color(1f,1f,1f,0f);
- graphics.setColor(whiteTrans);
- graphics.fillRect(0, 0, (int)dim.getWidth(), (int)dim.getHeight());
-
- DrawFactory drawFact = DrawFactory.getInstance(graphics);
- MasterSheet<?,?> master = sheet.getMasterSheet();
-
- if(sheet.getFollowMasterGraphics() && master != null) {
- Drawable drawer = drawFact.getDrawable(master);
- drawer.draw(graphics);
- }
-
- graphics.setRenderingHint(Drawable.GROUP_TRANSFORM, new AffineTransform());
-
- for (Shape<?,?> shape : sheet.getShapes()) {
- if(!canDraw(graphics, shape)) {
- continue;
- }
-
- // remember the initial transform and restore it after we are done with drawing
- AffineTransform at = graphics.getTransform();
-
- // concrete implementations can make sense of this hint,
- // for example PSGraphics2D or PDFGraphics2D would call gsave() / grestore
- graphics.setRenderingHint(Drawable.GSAVE, true);
-
- // apply rotation and flipping
- Drawable drawer = drawFact.getDrawable(shape);
- drawer.applyTransform(graphics);
- // draw stuff
- drawer.draw(graphics);
-
- // restore the coordinate system
- graphics.setTransform(at);
-
- graphics.setRenderingHint(Drawable.GRESTORE, true);
- }
- }
-
- @Override
- public void applyTransform(Graphics2D context) {
- }
-
- @Override
- public void drawContent(Graphics2D context) {
- }
-
- /**
- * Checks if this <code>sheet</code> displays the specified shape.
- *
- * Subclasses can override it and skip certain shapes from drawings,
- * for instance, slide masters and layouts don't display placeholders
- */
- protected boolean canDraw(Graphics2D graphics, Shape<?,?> shape){
- return true;
- }
- }
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