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The Apache Commons Codec package contains simple encoder and decoders for
various formats such as Base64 and Hexadecimal. In addition to these
widely used encoders and decoders, the codec package also maintains a
collection of phonetic encoding utilities.
/* ====================================================================
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 sheet
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;
}
}