/*
* ====================================================================
* 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.xslf.usermodel;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Comparator;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.sl.draw.DrawFactory;
import org.apache.poi.sl.draw.DrawPaint;
import org.apache.poi.sl.usermodel.ColorStyle;
import org.apache.poi.sl.usermodel.MasterSheet;
import org.apache.poi.sl.usermodel.PaintStyle;
import org.apache.poi.sl.usermodel.PaintStyle.GradientPaint;
import org.apache.poi.sl.usermodel.PaintStyle.TexturePaint;
import org.apache.poi.sl.usermodel.PlaceableShape;
import org.apache.poi.sl.usermodel.Placeholder;
import org.apache.poi.sl.usermodel.Shape;
import org.apache.poi.util.Beta;
import org.apache.poi.util.Internal;
import org.apache.poi.xslf.model.PropertyFetcher;
import org.apache.poi.xslf.usermodel.XSLFPropertiesDelegate.XSLFFillProperties;
import org.apache.xmlbeans.XmlCursor;
import org.apache.xmlbeans.XmlObject;
import org.openxmlformats.schemas.drawingml.x2006.main.CTBlip;
import org.openxmlformats.schemas.drawingml.x2006.main.CTBlipFillProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTGradientFillProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTGradientStop;
import org.openxmlformats.schemas.drawingml.x2006.main.CTGroupShapeProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSchemeColor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTShapeStyle;
import org.openxmlformats.schemas.drawingml.x2006.main.CTSolidColorFillProperties;
import org.openxmlformats.schemas.drawingml.x2006.main.CTStyleMatrix;
import org.openxmlformats.schemas.drawingml.x2006.main.CTStyleMatrixReference;
import org.openxmlformats.schemas.drawingml.x2006.main.STPathShadeType;
import org.openxmlformats.schemas.presentationml.x2006.main.CTApplicationNonVisualDrawingProps;
import org.openxmlformats.schemas.presentationml.x2006.main.CTBackgroundProperties;
import org.openxmlformats.schemas.presentationml.x2006.main.CTPlaceholder;
import org.openxmlformats.schemas.presentationml.x2006.main.CTShape;
import org.openxmlformats.schemas.presentationml.x2006.main.STPlaceholderType;
/**
* Base super-class class for all shapes in PresentationML
*/
@Beta
public abstract class XSLFShape implements Shape<XSLFShape,XSLFTextParagraph> {
protected static final String PML_NS = "http://schemas.openxmlformats.org/presentationml/2006/main";
private final XmlObject _shape;
private final XSLFSheet _sheet;
private XSLFShapeContainer _parent;
private CTShapeStyle _spStyle;
private CTNonVisualDrawingProps _nvPr;
private CTPlaceholder _ph;
protected XSLFShape(XmlObject shape, XSLFSheet sheet) {
_shape = shape;
_sheet = sheet;
}
/**
* @return the xml bean holding this shape's data
*/
public final XmlObject getXmlObject() {
// it's final because the xslf inheritance hierarchy is not necessary the same as
// the (not existing) xmlbeans hierarchy and subclasses shouldn't narrow it's return value
return _shape;
}
public XSLFSheet getSheet() {
return _sheet;
}
/**
* @return human-readable name of this shape, e.g. "Rectange 3"
*/
public String getShapeName(){
return getCNvPr().getName();
}
/**
* Returns a unique identifier for this shape within the current document.
* This ID may be used to assist in uniquely identifying this object so that it can
* be referred to by other parts of the document.
* <p>
* If multiple objects within the same document share the same id attribute value,
* then the document shall be considered non-conformant.
* </p>
*
* @return unique id of this shape
*/
public int getShapeId() {
return (int)getCNvPr().getId();
}
/**
* Set the contents of this shape to be a copy of the source shape.
* This method is called recursively for each shape when merging slides
*
* @param sh the source shape
* @see org.apache.poi.xslf.usermodel.XSLFSlide#importContent(XSLFSheet)
*/
@Internal
void copy(XSLFShape sh) {
if (!getClass().isInstance(sh)) {
throw new IllegalArgumentException(
"Can't copy " + sh.getClass().getSimpleName() + " into " + getClass().getSimpleName());
}
if (this instanceof PlaceableShape) {
PlaceableShape<?,?> ps = (PlaceableShape<?,?>)this;
ps.setAnchor(sh.getAnchor());
}
}
public void setParent(XSLFShapeContainer parent) {
this._parent = parent;
}
public XSLFShapeContainer getParent() {
return this._parent;
}
protected PaintStyle getFillPaint() {
final XSLFTheme theme = getSheet().getTheme();
final boolean hasPlaceholder = getPlaceholder() != null;
PropertyFetcher<PaintStyle> fetcher = new PropertyFetcher<PaintStyle>() {
public boolean fetch(XSLFShape shape) {
XSLFFillProperties fp = XSLFPropertiesDelegate.getFillDelegate(shape.getShapeProperties());
if (fp == null) {
return false;
}
if (fp.isSetNoFill()) {
setValue(null);
return true;
}
PackagePart pp = shape.getSheet().getPackagePart();
PaintStyle paint = selectPaint(fp, null, pp, theme, hasPlaceholder);
if (paint != null) {
setValue(paint);
return true;
}
CTShapeStyle style = shape.getSpStyle();
if (style != null) {
fp = XSLFPropertiesDelegate.getFillDelegate(style.getFillRef());
paint = selectPaint(fp, null, pp, theme, hasPlaceholder);
}
if (paint != null) {
setValue(paint);
return true;
}
return false;
}
};
fetchShapeProperty(fetcher);
return fetcher.getValue();
}
protected CTBackgroundProperties getBgPr() {
return getChild(CTBackgroundProperties.class, PML_NS, "bgPr");
}
protected CTStyleMatrixReference getBgRef() {
return getChild(CTStyleMatrixReference.class, PML_NS, "bgRef");
}
protected CTGroupShapeProperties getGrpSpPr() {
return getChild(CTGroupShapeProperties.class, PML_NS, "grpSpPr");
}
protected CTNonVisualDrawingProps getCNvPr() {
if (_nvPr == null) {
String xquery = "declare namespace p='http://schemas.openxmlformats.org/presentationml/2006/main' .//*/p:cNvPr";
_nvPr = selectProperty(CTNonVisualDrawingProps.class, xquery);
}
return _nvPr;
}
protected CTShapeStyle getSpStyle() {
if (_spStyle == null) {
_spStyle = getChild(CTShapeStyle.class, PML_NS, "style");
}
return _spStyle;
}
/**
* Return direct child objects of this shape
*
* @param childClass the class to cast the properties to
* @param namespace the namespace - usually it is {@code "http://schemas.openxmlformats.org/presentationml/2006/main"}
* @param nodename the node name, without prefix
* @return the properties object or null if it can't be found
*/
@SuppressWarnings("unchecked")
protected <T extends XmlObject> T getChild(Class<T> childClass, String namespace, String nodename) {
XmlCursor cur = getXmlObject().newCursor();
T child = null;
if (cur.toChild(namespace, nodename)) {
child = (T)cur.getObject();
}
if (cur.toChild("http://schemas.openxmlformats.org/drawingml/2006/main", nodename)) {
child = (T)cur.getObject();
}
cur.dispose();
return child;
}
protected CTPlaceholder getCTPlaceholder() {
if (_ph == null) {
String xquery = "declare namespace p='"+PML_NS+"' .//*/p:nvPr/p:ph";
_ph = selectProperty(CTPlaceholder.class, xquery);
}
return _ph;
}
public Placeholder getPlaceholder() {
CTPlaceholder ph = getCTPlaceholder();
if (ph == null || !(ph.isSetType() || ph.isSetIdx())) {
return null;
}
return Placeholder.lookupOoxml(ph.getType().intValue());
}
/**
* Specifies that the corresponding shape should be represented by the generating application
* as a placeholder. When a shape is considered a placeholder by the generating application
* it can have special properties to alert the user that they may enter content into the shape.
* Different types of placeholders are allowed and can be specified by using the placeholder
* type attribute for this element
*
* @param placeholder The shape to use as placeholder or null if no placeholder should be set.
*/
protected void setPlaceholder(Placeholder placeholder) {
String xquery = "declare namespace p='"+PML_NS+"' .//*/p:nvPr";
CTApplicationNonVisualDrawingProps nv = selectProperty(CTApplicationNonVisualDrawingProps.class, xquery);
if (nv == null) return;
if(placeholder == null) {
if (nv.isSetPh()) nv.unsetPh();
_ph = null;
} else {
nv.addNewPh().setType(STPlaceholderType.Enum.forInt(placeholder.ooxmlId));
}
}
/**
* As there's no xmlbeans hierarchy, but XSLF works with subclassing, not all
* child classes work with a {@link CTShape} object, but often contain the same
* properties. This method is the generalized form of selecting and casting those
* properties.
*
* @param resultClass the requested result class
* @param xquery the simple (xmlbean) xpath expression to the property
* @return the xml object at the xpath location, or null if not found
*/
@SuppressWarnings("unchecked")
protected <T extends XmlObject> T selectProperty(Class<T> resultClass, String xquery) {
XmlObject[] rs = getXmlObject().selectPath(xquery);
if (rs.length == 0) return null;
return (resultClass.isInstance(rs[0])) ? (T)rs[0] : null;
}
/**
* Walk up the inheritance tree and fetch shape properties.<p>
*
* The following order of inheritance is assumed:<p>
* <ol>
* <li>slide
* <li>slideLayout
* <li>slideMaster
* </ol>
*
* Currently themes and their defaults aren't correctly handled
*
* @param visitor the object that collects the desired property
* @return true if the property was fetched
*/
protected boolean fetchShapeProperty(PropertyFetcher<?> visitor) {
// try shape properties in slide
if (visitor.fetch(this)) {
return true;
}
CTPlaceholder ph = getCTPlaceholder();
if (ph == null) {
return false;
}
MasterSheet<XSLFShape,XSLFTextParagraph> sm = getSheet().getMasterSheet();
// try slide layout
if (sm instanceof XSLFSlideLayout) {
XSLFSlideLayout slideLayout = (XSLFSlideLayout)sm;
XSLFSimpleShape placeholderShape = slideLayout.getPlaceholder(ph);
if (placeholderShape != null && visitor.fetch(placeholderShape)) {
return true;
}
sm = slideLayout.getMasterSheet();
}
// try slide master
if (sm instanceof XSLFSlideMaster) {
XSLFSlideMaster master = (XSLFSlideMaster)sm;
int textType = getPlaceholderType(ph);
XSLFSimpleShape masterShape = master.getPlaceholderByType(textType);
if (masterShape != null && visitor.fetch(masterShape)) {
return true;
}
}
return false;
}
private static int getPlaceholderType(CTPlaceholder ph) {
if ( !ph.isSetType()) {
return STPlaceholderType.INT_BODY;
}
switch (ph.getType().intValue()) {
case STPlaceholderType.INT_TITLE:
case STPlaceholderType.INT_CTR_TITLE:
return STPlaceholderType.INT_TITLE;
case STPlaceholderType.INT_FTR:
case STPlaceholderType.INT_SLD_NUM:
case STPlaceholderType.INT_DT:
return ph.getType().intValue();
default:
return STPlaceholderType.INT_BODY;
}
}
/**
* Convert shape fill into java.awt.Paint. The result is either Color or
* TexturePaint or GradientPaint or null
*
* @param fp a properties handler specific to the underlying shape properties
* @param phClr context color
* @param parentPart the parent package part. Any external references (images, etc.) are resolved relative to it.
* @param theme the theme for the shape/sheet
*
* @return the applied Paint or null if none was applied
*/
protected static PaintStyle selectPaint(XSLFFillProperties fp, final CTSchemeColor phClr, final PackagePart parentPart, final XSLFTheme theme, boolean hasPlaceholder) {
if (fp == null || fp.isSetNoFill()) {
return null;
} else if (fp.isSetSolidFill()) {
return selectPaint(fp.getSolidFill(), phClr, theme);
} else if (fp.isSetBlipFill()) {
return selectPaint(fp.getBlipFill(), parentPart);
} else if (fp.isSetGradFill()) {
return selectPaint(fp.getGradFill(), phClr, theme);
} else if (fp.isSetMatrixStyle()) {
return selectPaint(fp.getMatrixStyle(), theme, fp.isLineStyle(), hasPlaceholder);
} else {
return null;
}
}
protected static PaintStyle selectPaint(CTSolidColorFillProperties solidFill, CTSchemeColor phClr, final XSLFTheme theme) {
if (solidFill.isSetSchemeClr()) {
// if there's a reference to the placeholder color,
// stop evaluating further and let the caller select
// the next style inheritance level
// if (STSchemeColorVal.PH_CLR.equals(solidFill.getSchemeClr().getVal())) {
// return null;
// }
if (phClr == null) {
phClr = solidFill.getSchemeClr();
}
}
final XSLFColor c = new XSLFColor(solidFill, theme, phClr);
return DrawPaint.createSolidPaint(c.getColorStyle());
}
protected static PaintStyle selectPaint(final CTBlipFillProperties blipFill, final PackagePart parentPart) {
final CTBlip blip = blipFill.getBlip();
return new TexturePaint() {
private PackagePart getPart() {
try {
String blipId = blip.getEmbed();
PackageRelationship rel = parentPart.getRelationship(blipId);
return parentPart.getRelatedPart(rel);
} catch (InvalidFormatException e) {
throw new RuntimeException(e);
}
}
public InputStream getImageData() {
try {
return getPart().getInputStream();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public String getContentType() {
/* TOOD: map content-type */
return getPart().getContentType();
}
public int getAlpha() {
return (blip.sizeOfAlphaModFixArray() > 0)
? blip.getAlphaModFixArray(0).getAmt()
: 100000;
}
};
}
protected static PaintStyle selectPaint(final CTGradientFillProperties gradFill, CTSchemeColor phClr, final XSLFTheme theme) {
final CTGradientStop[] gs = gradFill.getGsLst().getGsArray();
Arrays.sort(gs, new Comparator<CTGradientStop>() {
public int compare(CTGradientStop o1, CTGradientStop o2) {
Integer pos1 = o1.getPos();
Integer pos2 = o2.getPos();
return pos1.compareTo(pos2);
}
});
final ColorStyle cs[] = new ColorStyle[gs.length];
final float fractions[] = new float[gs.length];
int i=0;
for (CTGradientStop cgs : gs) {
CTSchemeColor phClrCgs = phClr;
if (phClrCgs == null && cgs.isSetSchemeClr()) {
phClrCgs = cgs.getSchemeClr();
}
cs[i] = new XSLFColor(cgs, theme, phClrCgs).getColorStyle();
fractions[i] = cgs.getPos() / 100000.f;
i++;
}
return new GradientPaint() {
public double getGradientAngle() {
return (gradFill.isSetLin())
? gradFill.getLin().getAng() / 60000.d
: 0;
}
public ColorStyle[] getGradientColors() {
return cs;
}
public float[] getGradientFractions() {
return fractions;
}
public boolean isRotatedWithShape() {
return gradFill.getRotWithShape();
}
public GradientType getGradientType() {
if (gradFill.isSetLin()) {
return GradientType.linear;
}
if (gradFill.isSetPath()) {
/* TODO: handle rect path */
STPathShadeType.Enum ps = gradFill.getPath().getPath();
if (ps == STPathShadeType.CIRCLE) {
return GradientType.circular;
} else if (ps == STPathShadeType.SHAPE) {
return GradientType.shape;
}
}
return GradientType.linear;
}
};
}
protected static PaintStyle selectPaint(CTStyleMatrixReference fillRef, final XSLFTheme theme, boolean isLineStyle, boolean hasPlaceholder) {
if (fillRef == null) return null;
// The idx attribute refers to the index of a fill style or
// background fill style within the presentation's style matrix, defined by the fmtScheme element.
// value of 0 or 1000 indicates no background,
// values 1-999 refer to the index of a fill style within the fillStyleLst element
// values 1001 and above refer to the index of a background fill style within the bgFillStyleLst element.
int idx = (int)fillRef.getIdx();
CTStyleMatrix matrix = theme.getXmlObject().getThemeElements().getFmtScheme();
final XmlObject styleLst;
int childIdx;
if (idx >= 1 && idx <= 999) {
childIdx = idx-1;
styleLst = (isLineStyle) ? matrix.getLnStyleLst() : matrix.getFillStyleLst();
} else if (idx >= 1001 ){
childIdx = idx - 1001;
styleLst = matrix.getBgFillStyleLst();
} else {
return null;
}
XmlCursor cur = styleLst.newCursor();
XSLFFillProperties fp = null;
if (cur.toChild(childIdx)) {
fp = XSLFPropertiesDelegate.getFillDelegate(cur.getObject());
}
cur.dispose();
CTSchemeColor phClr = fillRef.getSchemeClr();
PaintStyle res = selectPaint(fp, phClr, theme.getPackagePart(), theme, hasPlaceholder);
// check for empty placeholder value
// see http://officeopenxml.com/prSlide-color.php - "Color Placeholders within Themes"
if (res != null || hasPlaceholder) {
return res;
}
XSLFColor col = new XSLFColor(fillRef, theme, phClr);
return DrawPaint.createSolidPaint(col.getColorStyle());
}
@Override
public void draw(Graphics2D graphics, Rectangle2D bounds) {
DrawFactory.getInstance(graphics).drawShape(graphics, this, bounds);
}
/**
* Return the shape specific (visual) properties
*
* @return the shape specific properties
*/
protected XmlObject getShapeProperties() {
return getChild(CTShapeProperties.class, PML_NS, "spPr");
}
}