private void mergePage(COSArray array, PDPage page) {
int layoutPageNum = pageCount % layoutPages.size();
LayoutPage layoutPage = (LayoutPage) layoutPages.get(layoutPageNum);
PDResources resources = page.findResources();
if (resources == null) {
resources = new PDResources();
page.setResources(resources);
}
COSDictionary docResDict = resources.getCOSDictionary();
COSDictionary layoutResDict = layoutPage.res;
mergeArray(COSName.PROC_SET, docResDict, layoutResDict);
mergeDictionary(COSName.FONT, docResDict, layoutResDict, layoutPage.objectNameMap);
mergeDictionary(COSName.XOBJECT, docResDict, layoutResDict, layoutPage.objectNameMap);
mergeDictionary(COSName.EXT_G_STATE, docResDict, layoutResDict, layoutPage.objectNameMap);
// we are going to wrap the existing content around some save/restore
// graphics state, so the result is
//
// <save graphics state>
// <all existing content streams>
// <restore graphics state>
// <overlay content>
array.add(0, saveGraphicsStateStream);
array.add(restoreGraphicsStateStream);
array.add(layoutPage.contents);
}
