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/* This file is part of the KDE project
* Copyright (C) 2007 Pierre Ducroquet <pinaraf@gmail.com>
* Copyright (C) 2008 Thorsten Zachmann <zachmann@kde.org>
* Copyright (C) 2008 Sebastian Sauer <mail@dipe.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "PageVariable.h"
#include "VariablesDebug.h"
#include <KoXmlReader.h>
#include <KoXmlWriter.h>
#include <KoProperties.h>
#include <KoShape.h>
#include <KoShapeSavingContext.h>
#include <KoShapeLoadingContext.h>
#include <KoXmlNS.h>
#include <KoTextLayoutRootArea.h>
#include <KoTextDocumentLayout.h>
#include <KoTextDocument.h>
#include <QFontMetricsF>
#include <QTextDocument>
#include <QAbstractTextDocumentLayout>
#include <QTextInlineObject>
PageVariable::PageVariable()
: KoVariable(true),
m_type(PageNumber),
m_pageselect(KoTextPage::CurrentPage),
m_pageadjust(0),
m_fixed(false)
{
}
void PageVariable::readProperties(const KoProperties *props)
{
switch (props->intProperty("vartype")) {
case 1:
m_type = PageCount;
break;
case 2:
m_type = PageNumber;
break;
case 3:
m_type = PageContinuation;
break;
default:
Q_ASSERT(false);
break;
}
}
void PageVariable::propertyChanged(Property property, const QVariant &value)
{
switch (m_type) {
case PageCount:
if (property == KoInlineObject::PageCount) {
KoOdfNumberDefinition defaultDefinition; // FIXME Should fetch from pagestyle
QString newValue = value.toInt() >= 0 ? m_numberFormat.formattedNumber(value.toInt(), &defaultDefinition) : QString();
setValue(newValue);
}
break;
case PageNumber:
break;
case PageContinuation:
break;
}
}
void PageVariable::resize(const QTextDocument *document, QTextInlineObject &object, int posInDocument, const QTextCharFormat &format, QPaintDevice *pd)
{
KoTextPage *page = 0;
if (m_type != PageCount) {
#if 0 // the code is left here to do some testing
KoTextDocumentLayout *lay = qobject_cast<KoTextDocumentLayout*>(document->documentLayout());
KoTextLayoutRootArea *rootArea = 0;
KoTextPage *page2 = 0;
if (lay) {
rootArea = lay->rootAreaForPosition(posInDocument);
if (rootArea) {
page2 = rootArea->page();
}
}
#endif
page = document->resource(KoTextDocument::LayoutTextPage, KoTextDocument::LayoutTextPageUrl).value<KoTextPage*>();
}
int pagenumber = 0;
switch (m_type) {
case PageCount:
break;
case PageNumber:
if (page) {
// the text is not yet layouted therefore we don't get the rootArea
// if we don't do that we get an endless change of the variable.
QString currentValue = value();
if (currentValue.isEmpty() || ! m_fixed) {
pagenumber = page->visiblePageNumber(m_pageselect, m_pageadjust);
KoOdfNumberDefinition defaultDefinition; // FIXME Should fetch from pagestyle
QString newValue = pagenumber >= 0 ? m_numberFormat.formattedNumber(pagenumber, &defaultDefinition) : QString();
// only update value when changed
if (currentValue != newValue) {
setValue(newValue);
}
}
}
break;
case PageContinuation:
if (page) {
// the text is not yet layouted therefore we don't get the rootArea
// if we don't do that we get an endless change of the variable.
pagenumber = page->visiblePageNumber(m_pageselect);
setValue(pagenumber >= 0 ? m_continuation : QString());
}
break;
}
KoVariable::resize(document, object, posInDocument, format, pd);
}
void PageVariable::saveOdf(KoShapeSavingContext & context)
{
KoXmlWriter *writer = &context.xmlWriter();
switch (m_type) {
case PageCount:
// <text:page-count>3</text:page-count>
writer->startElement("text:page-count", false);
writer->addTextNode(value());
writer->endElement();
break;
case PageNumber:
// <text:page-number text:select-page="current" text:page-adjust="2" text:fixed="true">3</text:page-number>
writer->startElement("text:page-number", false);
if (m_pageselect == KoTextPage::CurrentPage)
writer->addAttribute("text:select-page", "current");
else if (m_pageselect == KoTextPage::PreviousPage)
writer->addAttribute("text:select-page", "previous");
else if (m_pageselect == KoTextPage::NextPage)
writer->addAttribute("text:select-page", "next");
if (m_pageadjust != 0)
writer->addAttribute("text:page-adjust", QString::number(m_pageadjust));
m_numberFormat.saveOdf(writer);
if (m_fixed)
writer->addAttribute("text:fixed", "true");
writer->addTextNode(value());
writer->endElement();
break;
case PageContinuation:
// <text:page-continuation-string text:select-page="previous">The Text</text:page-continuation-string>
writer->startElement("page-continuation-string", false);
if (m_pageselect == KoTextPage::PreviousPage)
writer->addAttribute("text:select-page", "previous");
else if (m_pageselect == KoTextPage::NextPage)
writer->addAttribute("text:select-page", "next");
writer->addTextNode(m_continuation);
writer->endElement();
break;
}
}
bool PageVariable::loadOdf(const KoXmlElement & element, KoShapeLoadingContext & context)
{
Q_UNUSED(context);
const QString localName(element.localName());
if (localName == "page-count") {
m_type = PageCount;
m_numberFormat.loadOdf(element);
} else if (localName == "page-number") {
m_type = PageNumber;
// The text:select-page attribute is used to display the number of the previous or the following
// page rather than the number of the current page.
QString pageselect = element.attributeNS(KoXmlNS::text, "select-page", QString());
if (pageselect == "previous")
m_pageselect = KoTextPage::PreviousPage;
else if (pageselect == "next")
m_pageselect = KoTextPage::NextPage;
else // "current"
m_pageselect = KoTextPage::CurrentPage;
// The value of a page number field can be adjusted by a specified number, allowing the display
// of page numbers of following or preceding pages. The adjustment amount is specified using
// the text:page-adjust attribute.
m_pageadjust = element.attributeNS(KoXmlNS::text, "page-adjust", QString()).toInt();
m_numberFormat.loadOdf(element);
// The text:fixed attribute specifies whether or not the value of a field element is fixed. If
// the value of a field is fixed, the value of the field element to which this attribute is
// attached is preserved in all future edits of the document. If the value of the field is not
// fixed, the value of the field may be replaced by a new value when the document is edited.
m_fixed = element.attributeNS(KoXmlNS::text, "fixed", QString()) == "true";
} else if (localName == "page-continuation-string") {
m_type = PageContinuation;
// This attribute specifies whether to check for a previous or next page and if the page exists, the
// continuation text is printed.
QString pageselect = element.attributeNS(KoXmlNS::text, "select-page", QString());
if (pageselect == "previous")
m_pageselect = KoTextPage::PreviousPage;
else if (pageselect == "next")
m_pageselect = KoTextPage::NextPage;
else
m_pageselect = KoTextPage::CurrentPage;
// The text to display
m_continuation = element.text();
}
return true;
}
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