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koffice/kexi/formeditor/formIO.cpp

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/* This file is part of the KDE project
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
Copyright (C) 2005-2007 Jaroslaw Staniek <js@iidea.pl>
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 <kdebug.h>
#include <qmetaobject.h>
#include <qdom.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qcursor.h>
#include <qbuffer.h>
#include <qimage.h>
#include <qlayout.h>
#include <qobjectlist.h>
#include <qdatetime.h>
#include <qlabel.h>
#include <qpainter.h>
#include <kfiledialog.h>
#include <klocale.h>
#include <kcommand.h>
#include <kaccelmanager.h>
#include "form.h"
#include "container.h"
#include "objecttree.h"
#include "formmanager.h"
#include "widgetlibrary.h"
#include "spring.h"
#include "pixmapcollection.h"
#include "events.h"
#include "utils.h"
#include "kexiflowlayout.h"
#include "widgetwithsubpropertiesinterface.h"
#include "formIO.h"
/// A blank widget used when the class name is not supported
CustomWidget::CustomWidget(const QCString &className, QWidget *parent, const char *name)
: QWidget(parent, name), m_className(className)
{
setBackgroundMode(Qt::PaletteDark);
}
CustomWidget::~CustomWidget()
{
}
void
CustomWidget::paintEvent(QPaintEvent *)
{
QPainter p(this);
p.setPen(palette().active().text());
QRect r(rect());
r.setX(r.x()+2);
p.drawText(r, Qt::AlignTop, m_className);
}
using namespace KFormDesigner;
QDict<QLabel> *FormIO::m_buddies = 0;
ObjectTreeItem *FormIO::m_currentItem = 0;
Form *FormIO::m_currentForm = 0;
bool FormIO::m_savePixmapsInline = false;
// FormIO itself
KFORMEDITOR_EXPORT uint KFormDesigner::version()
{
return KFORMDESIGNER_VERSION;
}
/////////////////////////////////////////////////////////////////////////////
///////////// Saving/loading functions //////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
FormIO::FormIO()
{
}
FormIO::~FormIO()
{
}
bool
FormIO::saveFormToFile(Form *form, const QString &filename)
{
QString m_filename;
if(!form->filename().isNull() && filename.isNull())
m_filename = form->filename();
if(filename.isNull())
{
m_filename = KFileDialog::getSaveFileName(QString::null, i18n("*.ui|Qt Designer UI Files"));
if(m_filename.isNull())
return false;
}
else
m_filename = filename;
form->setFilename(m_filename);
QDomDocument domDoc;
if (!saveFormToDom(form, domDoc))
return false;
QFile file(m_filename);
if (!file.open(IO_WriteOnly))
return false;
QTextStream stream(&file);
stream << domDoc.toString(3) << endl;
file.close();
return true;
}
bool
FormIO::saveFormToByteArray(Form *form, QByteArray &dest)
{
QDomDocument domDoc;
if (!saveFormToDom(form, domDoc))
return false;
dest = domDoc.toCString();
return true;
}
bool
FormIO::saveFormToString(Form *form, QString &dest, int indent)
{
QDomDocument domDoc;
if (!saveFormToDom(form, domDoc))
return false;
dest = domDoc.toString(indent);
return true;
}
bool
FormIO::saveFormToDom(Form *form, QDomDocument &domDoc)
{
m_currentForm = form;
domDoc = QDomDocument("UI");
QDomElement uiElement = domDoc.createElement("UI");
domDoc.appendChild(uiElement);
uiElement.setAttribute("version", "3.1");
uiElement.setAttribute("stdsetdef", 1);
//update format version information
form->headerProperties()->insert("version", QString::number(form->formatVersion()));
//custom properties
QDomElement headerPropertiesEl = domDoc.createElement("kfd:customHeader");
for (QMapConstIterator<QCString,QString> it=form->headerProperties()->constBegin(); it!=form->headerProperties()->constEnd(); ++it) {
headerPropertiesEl.setAttribute(it.key(), it.data());
}
uiElement.appendChild(headerPropertiesEl);
/// We save the savePixmapsInline property in the Form
QDomElement inlinePix = domDoc.createElement("pixmapinproject");
uiElement.appendChild(inlinePix);
// We create the top class element
QDomElement baseClass = domDoc.createElement("class");
uiElement.appendChild(baseClass);
QDomText baseClassV = domDoc.createTextNode("QWidget");
baseClass.appendChild(baseClassV);
// Save the toplevel widgets, and so the whole Form
saveWidget(form->objectTree(), uiElement, domDoc);
// We then save the layoutdefaults element
QDomElement layoutDefaults = domDoc.createElement("layoutDefaults");
layoutDefaults.setAttribute("spacing", QString::number(form->defaultSpacing()));
layoutDefaults.setAttribute("margin", QString::number(form->defaultMargin()));
uiElement.appendChild(layoutDefaults);
/// Save tab Stops
if(form->autoTabStops())
form->autoAssignTabStops();
QDomElement tabStops = domDoc.createElement("tabstops");
uiElement.appendChild(tabStops);
for(ObjectTreeListIterator it( form->tabStopsIterator() ); it.current(); ++it)
{
QDomElement tabstop = domDoc.createElement("tabstop");
tabStops.appendChild(tabstop);
QDomText tabStopText = domDoc.createTextNode(it.current()->name());
tabstop.appendChild(tabStopText);
}
// Save the Form 's PixmapCollection
form->pixmapCollection()->save(uiElement);
// Save the Form connections
form->connectionBuffer()->save(uiElement);
form->commandHistory()->documentSaved();
m_currentForm = 0;
m_currentItem = 0;
//m_currentWidget = 0;
return true;
}
bool
FormIO::loadFormFromByteArray(Form *form, QWidget *container, QByteArray &src, bool preview)
{
QString errMsg;
int errLine;
int errCol;
QDomDocument inBuf;
bool parsed = inBuf.setContent(src, false, &errMsg, &errLine, &errCol);
if(!parsed)
{
kdDebug() << "WidgetWatcher::load(): " << errMsg << endl;
kdDebug() << "WidgetWatcher::load(): line: " << errLine << " col: " << errCol << endl;
return false;
}
if (!loadFormFromDom(form, container, inBuf))
return false;
if(preview)
form->setDesignMode(false);
return true;
}
bool
FormIO::loadFormFromString(Form *form, QWidget *container, QString &src, bool preview)
{
QString errMsg;
int errLine;
int errCol;
#ifdef KEXI_DEBUG_GUI
form->m_recentlyLoadedUICode = src;
#endif
QDomDocument inBuf;
bool parsed = inBuf.setContent(src, false, &errMsg, &errLine, &errCol);
if(!parsed)
{
kdDebug() << "WidgetWatcher::load(): " << errMsg << endl;
kdDebug() << "WidgetWatcher::load(): line: " << errLine << " col: " << errCol << endl;
return false;
}
if (!loadFormFromDom(form, container, inBuf))
return false;
if(preview)
form->setDesignMode(false);
return true;
}
bool
FormIO::loadFormFromFile(Form *form, QWidget *container, const QString &filename)
{
QString errMsg;
int errLine;
int errCol;
QString m_filename;
if(filename.isNull())
{
m_filename = KFileDialog::getOpenFileName(QString::null, i18n("*.ui|Qt Designer UI Files"));
if(m_filename.isNull())
return false;
}
else
m_filename = filename;
QFile file(m_filename);
if(!file.open(IO_ReadOnly))
{
kdDebug() << "Cannot open the file " << filename << endl;
return false;
}
QTextStream stream(&file);
QString text = stream.read();
QDomDocument inBuf;
bool parsed = inBuf.setContent(text, false, &errMsg, &errLine, &errCol);
if(!parsed)
{
kdDebug() << "WidgetWatcher::load(): " << errMsg << endl;
kdDebug() << "WidgetWatcher::load(): line: " << errLine << " col: " << errCol << endl;
return false;
}
return loadFormFromDom(form, container, inBuf);
}
bool
FormIO::loadFormFromDom(Form *form, QWidget *container, QDomDocument &inBuf)
{
m_currentForm = form;
QDomElement ui = inBuf.namedItem("UI").toElement();
//custom properties
form->headerProperties()->clear();
QDomElement headerPropertiesEl = ui.namedItem("kfd:customHeader").toElement();
QDomAttr attr = headerPropertiesEl.firstChild().toAttr();
while (!attr.isNull() && attr.isAttr()) {
form->headerProperties()->insert(attr.name().latin1(), attr.value());
attr = attr.nextSibling().toAttr();
}
//update format version information
uint ver = 1; //the default
if (form->headerProperties()->contains("version")) {
bool ok;
uint v = (*form->headerProperties())["version"].toUInt(&ok);
if (ok)
ver = v;
}
kdDebug() << "FormIO::loadFormFromDom(): original format version: " << ver << endl;
form->setOriginalFormatVersion( ver );
if (ver < KFormDesigner::version()) {
//! @todo We can either 1) convert from old format and later save in a new one or 2) keep old format.
//! To do this we may need to look at the original format version number.
kdDebug() << "FormIO::loadFormFromDom(): original format is older than current: " << KFormDesigner::version() << endl;
form->setFormatVersion( KFormDesigner::version() );
}
else
form->setFormatVersion( ver );
if (ver > KFormDesigner::version()) {
//! @todo display information about too new format and that "some information will not be available".
kdDebug() << "FormIO::loadFormFromDom(): original format is newer than current: " << KFormDesigner::version() << endl;
}
// Load the pixmap collection
m_savePixmapsInline = ( (ui.namedItem("pixmapinproject").isNull()) || (!ui.namedItem("images").isNull()) );
form->pixmapCollection()->load(ui.namedItem("collection"));
QDomElement element = ui.namedItem("widget").toElement();
createToplevelWidget(form, container, element);
// Loading the tabstops
QDomElement tabStops = ui.namedItem("tabstops").toElement();
// if(tabStops.isNull())
// return 1;
if(!tabStops.isNull()) {
int i = 0;
uint itemsNotFound = 0;
for(QDomNode n = tabStops.firstChild(); !n.isNull(); n = n.nextSibling(), i++)
{
QString name = n.toElement().text();
ObjectTreeItem *item = form->objectTree()->lookup(name);
if(!item)
{
kdDebug() << "FormIO::loadFormFromDom ERROR : no ObjectTreeItem " << endl;
continue;
}
const int index = form->tabStops()->findRef(item);
/* Compute a real destination index: "a number of not found items so far". */
const int realIndex = i - itemsNotFound;
if((index != -1) && (index != realIndex)) // the widget is not in the same place, so we move it
{
form->tabStops()->remove(item);
form->tabStops()->insert(realIndex, item);
}
if(index == -1) {
itemsNotFound++;
kdDebug() << "FormIO: item '" << name << "' not in list" << endl;
}
}
}
// Load the form connections
form->connectionBuffer()->load(ui.namedItem("connections"));
m_currentForm = 0;
m_currentItem = 0;
return true;
}
/////////////////////////////////////////////////////////////////////////////
///////////// Functions to save/load properties /////////////////////////////
/////////////////////////////////////////////////////////////////////////////
void
FormIO::savePropertyValue(QDomElement &parentNode, QDomDocument &parent, const char *name,
const QVariant &value, QWidget *w, WidgetLibrary *lib)
{
// Widget specific properties and attributes ///////////////
// kdDebug() << "FormIO::savePropertyValue() Saving the property: " << name << endl;
WidgetWithSubpropertiesInterface* subpropIface = dynamic_cast<WidgetWithSubpropertiesInterface*>(w);
QWidget *subwidget = w;
bool addSubwidgetFlag = false;
int propertyId = w->metaObject()->findProperty(name, true);
if (propertyId == -1 && subpropIface && subpropIface->subwidget()) { // try property from subwidget
subwidget = subpropIface->subwidget();
propertyId = subpropIface->subwidget()->metaObject()->findProperty(name, true);
addSubwidgetFlag = true;
}
if(propertyId == -1)
{
kdDebug() << "FormIO::savePropertyValue() The object doesn't have this property. Let's try the WidgetLibrary." << endl;
if(lib)
lib->saveSpecialProperty(w->className(), name, value, w, parentNode, parent);
return;
}
const QMetaProperty *meta = subwidget->metaObject()->property(propertyId, true);
if (!meta->stored( subwidget )) //not storable
return;
QDomElement propertyE = parent.createElement("property");
propertyE.setAttribute("name", name);
if (addSubwidgetFlag)
propertyE.setAttribute("subwidget", "true");
if(meta && meta->isEnumType())
{
// this property is enum or set type
QDomElement type;
QDomText valueE;
if(meta->isSetType())
{
QStringList list = QStringList::fromStrList(meta->valueToKeys(value.toInt()));
type = parent.createElement("set");
valueE = parent.createTextNode(list.join("|"));
type.appendChild(valueE);
}
else
{
QString s = meta->valueToKey(value.toInt());
type = parent.createElement("enum");
valueE = parent.createTextNode(s);
type.appendChild(valueE);
}
propertyE.appendChild(type);
parentNode.appendChild(propertyE);
return;
}
if(value.type() == QVariant::Pixmap) {
QDomText valueE;
QDomElement type = parent.createElement("pixmap");
QCString property = propertyE.attribute("name").latin1();
//todo QCString pixmapName = m_currentItem->widget()->property("pixmapName").toCString();
if(m_savePixmapsInline /* (js)too risky: || m_currentItem->pixmapName(property).isNull() */)
valueE = parent.createTextNode(saveImage(parent, value.toPixmap()));
else
valueE = parent.createTextNode(m_currentItem->pixmapName(property));
type.appendChild(valueE);
propertyE.appendChild(type);
parentNode.appendChild(propertyE);
return;
}
// Saving a "normal" property
writeVariant(parent, propertyE, value);
parentNode.appendChild(propertyE);
}
void
FormIO::writeVariant(QDomDocument &parent, QDomElement &parentNode, QVariant value)
{
QDomElement type;
QDomText valueE;
switch(value.type())
{
case QVariant::String:
{
type = parent.createElement("string");
valueE = parent.createTextNode(value.toString());
type.appendChild(valueE);
break;
}
case QVariant::CString:
{
type = parent.createElement("cstring");
valueE = parent.createTextNode(value.toString());
type.appendChild(valueE);
break;
}
case QVariant::Rect:
{
type = parent.createElement("rect");
QDomElement x = parent.createElement("x");
QDomElement y = parent.createElement("y");
QDomElement w = parent.createElement("width");
QDomElement h = parent.createElement("height");
QDomText valueX = parent.createTextNode(QString::number(value.toRect().x()));
QDomText valueY = parent.createTextNode(QString::number(value.toRect().y()));
QDomText valueW = parent.createTextNode(QString::number(value.toRect().width()));
QDomText valueH = parent.createTextNode(QString::number(value.toRect().height()));
x.appendChild(valueX);
y.appendChild(valueY);
w.appendChild(valueW);
h.appendChild(valueH);
type.appendChild(x);
type.appendChild(y);
type.appendChild(w);
type.appendChild(h);
break;
}
case QVariant::Color:
{
type = parent.createElement("color");
QDomElement r = parent.createElement("red");
QDomElement g = parent.createElement("green");
QDomElement b = parent.createElement("blue");
QDomText valueR = parent.createTextNode(QString::number(value.toColor().red()));
QDomText valueG = parent.createTextNode(QString::number(value.toColor().green()));
QDomText valueB = parent.createTextNode(QString::number(value.toColor().blue()));
r.appendChild(valueR);
g.appendChild(valueG);
b.appendChild(valueB);
type.appendChild(r);
type.appendChild(g);
type.appendChild(b);
break;
}
case QVariant::Bool:
{
type = parent.createElement("bool");
//valueE = parent.createTextNode(QString::number(value.toBool()));
valueE = parent.createTextNode(value.toBool() ? "true" : "false");
type.appendChild(valueE);
break;
}
case QVariant::Int:
case QVariant::UInt:
{
type = parent.createElement("number");
valueE = parent.createTextNode(QString::number(value.toInt()));
type.appendChild(valueE);
break;
}
case QVariant::Size:
{
type = parent.createElement("size");
QDomElement w = parent.createElement("width");
QDomElement h = parent.createElement("height");
QDomText valueW = parent.createTextNode(QString::number(value.toSize().width()));
QDomText valueH = parent.createTextNode(QString::number(value.toSize().height()));
w.appendChild(valueW);
h.appendChild(valueH);
type.appendChild(w);
type.appendChild(h);
break;
}
case QVariant::Point:
{
type = parent.createElement("point");
QDomElement x = parent.createElement("x");
QDomElement y = parent.createElement("y");
QDomText valueX = parent.createTextNode(QString::number(value.toPoint().x()));
QDomText valueY = parent.createTextNode(QString::number(value.toPoint().y()));
x.appendChild(valueX);
y.appendChild(valueY);
type.appendChild(x);
type.appendChild(y);
break;
}
case QVariant::Font:
{
type = parent.createElement("font");
QDomElement f = parent.createElement("family");
QDomElement p = parent.createElement("pointsize");
QDomElement w = parent.createElement("weight");
QDomElement b = parent.createElement("bold");
QDomElement i = parent.createElement("italic");
QDomElement u = parent.createElement("underline");
QDomElement s = parent.createElement("strikeout");
QDomText valueF = parent.createTextNode(value.toFont().family());
QDomText valueP = parent.createTextNode(QString::number(value.toFont().pointSize()));
QDomText valueW = parent.createTextNode(QString::number(value.toFont().weight()));
QDomText valueB = parent.createTextNode(QString::number(value.toFont().bold()));
QDomText valueI = parent.createTextNode(QString::number(value.toFont().italic()));
QDomText valueU = parent.createTextNode(QString::number(value.toFont().underline()));
QDomText valueS = parent.createTextNode(QString::number(value.toFont().strikeOut()));
f.appendChild(valueF);
p.appendChild(valueP);
w.appendChild(valueW);
b.appendChild(valueB);
i.appendChild(valueI);
u.appendChild(valueU);
s.appendChild(valueS);
type.appendChild(f);
type.appendChild(p);
type.appendChild(w);
type.appendChild(b);
type.appendChild(i);
type.appendChild(u);
type.appendChild(s);
break;
}
case QVariant::Cursor:
{
type = parent.createElement("cursor");
valueE = parent.createTextNode(QString::number(value.toCursor().shape()));
type.appendChild(valueE);
break;
}
case QVariant::SizePolicy:
{
type = parent.createElement("sizepolicy");
QDomElement h = parent.createElement("hsizetype");
QDomElement v = parent.createElement("vsizetype");
QDomElement hs = parent.createElement("horstretch");
QDomElement vs = parent.createElement("verstretch");
QDomText valueH = parent.createTextNode(QString::number(value.toSizePolicy().horData()));
QDomText valueV = parent.createTextNode(QString::number(value.toSizePolicy().verData()));
QDomText valueHS = parent.createTextNode(QString::number(value.toSizePolicy().horStretch()));
QDomText valueVS = parent.createTextNode(QString::number(value.toSizePolicy().verStretch()));
h.appendChild(valueH);
v.appendChild(valueV);
hs.appendChild(valueHS);
vs.appendChild(valueVS);
type.appendChild(h);
type.appendChild(v);
type.appendChild(hs);
type.appendChild(vs);
break;
}
case QVariant::Time:
{
type = parent.createElement("time");
QDomElement h = parent.createElement("hour");
QDomElement m = parent.createElement("minute");
QDomElement s = parent.createElement("second");
QDomText valueH = parent.createTextNode(QString::number(value.toTime().hour()));
QDomText valueM = parent.createTextNode(QString::number(value.toTime().minute()));
QDomText valueS = parent.createTextNode(QString::number(value.toTime().second()));
h.appendChild(valueH);
m.appendChild(valueM);
s.appendChild(valueS);
type.appendChild(h);
type.appendChild(m);
type.appendChild(s);
break;
}
case QVariant::Date:
{
type = parent.createElement("date");
QDomElement y = parent.createElement("year");
QDomElement m = parent.createElement("month");
QDomElement d = parent.createElement("day");
QDomText valueY = parent.createTextNode(QString::number(value.toDate().year()));
QDomText valueM = parent.createTextNode(QString::number(value.toDate().month()));
QDomText valueD = parent.createTextNode(QString::number(value.toDate().day()));
y.appendChild(valueY);
m.appendChild(valueM);
d.appendChild(valueD);
type.appendChild(y);
type.appendChild(m);
type.appendChild(d);
break;
}
case QVariant::DateTime:
{
type = parent.createElement("datetime");
QDomElement h = parent.createElement("hour");
QDomElement m = parent.createElement("minute");
QDomElement s = parent.createElement("second");
QDomElement y = parent.createElement("year");
QDomElement mo = parent.createElement("month");
QDomElement d = parent.createElement("day");
QDomText valueH = parent.createTextNode(QString::number(value.toDateTime().time().hour()));
QDomText valueM = parent.createTextNode(QString::number(value.toDateTime().time().minute()));
QDomText valueS = parent.createTextNode(QString::number(value.toDateTime().time().second()));
QDomText valueY = parent.createTextNode(QString::number(value.toDateTime().date().year()));
QDomText valueMo = parent.createTextNode(QString::number(value.toDateTime().date().month()));
QDomText valueD = parent.createTextNode(QString::number(value.toDateTime().date().day()));
h.appendChild(valueH);
m.appendChild(valueM);
s.appendChild(valueS);
y.appendChild(valueY);
mo.appendChild(valueMo);
d.appendChild(valueD);
type.appendChild(h);
type.appendChild(m);
type.appendChild(s);
type.appendChild(y);
type.appendChild(mo);
type.appendChild(d);
break;
}
default:
break;
}
parentNode.appendChild(type);
}
void
FormIO::savePropertyElement(QDomElement &parentNode, QDomDocument &domDoc, const QString &tagName, const QString &property, const QVariant &value)
{
QDomElement propertyE = domDoc.createElement(tagName);
propertyE.setAttribute("name", property);
writeVariant(domDoc, propertyE, value);
parentNode.appendChild(propertyE);
}
QVariant
FormIO::readPropertyValue(QDomNode node, QObject *obj, const QString &name)
{
QDomElement tag = node.toElement();
QString text = tag.text();
QString type = tag.tagName();
if(type == "string" || type == "cstring")
return text;
else if(type == "rect")
{
QDomElement x = node.namedItem("x").toElement();
QDomElement y = node.namedItem("y").toElement();
QDomElement w = node.namedItem("width").toElement();
QDomElement h = node.namedItem("height").toElement();
int rx = x.text().toInt();
int ry = y.text().toInt();
int rw = w.text().toInt();
int rh = h.text().toInt();
return QRect(rx, ry, rw, rh);
}
else if(type == "color")
{
QDomElement r = node.namedItem("red").toElement();
QDomElement g = node.namedItem("green").toElement();
QDomElement b = node.namedItem("blue").toElement();
int red = r.text().toInt();
int green = g.text().toInt();
int blue = b.text().toInt();
return QColor(red, green, blue);
}
else if(type == "bool")
{
if(text == "true")
return QVariant(true, 3);
else if(text == "false")
return QVariant(false, 3);
return QVariant(text.toInt(), 3);
}
else if(type == "number")
{
return text.toInt();
}
else if(type == "size")
{
QDomElement w = node.namedItem("width").toElement();
QDomElement h = node.namedItem("height").toElement();
return QSize(w.text().toInt(), h.text().toInt());
}
else if(type == "point")
{
QDomElement x = node.namedItem("x").toElement();
QDomElement y = node.namedItem("y").toElement();
return QPoint(x.text().toInt(), y.text().toInt());
}
else if(type == "font")
{
QDomElement fa = node.namedItem("family").toElement();
QDomElement p = node.namedItem("pointsize").toElement();
QDomElement w = node.namedItem("weight").toElement();
QDomElement b = node.namedItem("bold").toElement();
QDomElement i = node.namedItem("italic").toElement();
QDomElement u = node.namedItem("underline").toElement();
QDomElement s = node.namedItem("strikeout").toElement();
QFont f;
f.setFamily(fa.text());
f.setPointSize(p.text().toInt());
f.setWeight(w.text().toInt());
f.setBold(b.text().toInt());
f.setItalic(i.text().toInt());
f.setUnderline(u.text().toInt());
f.setStrikeOut(s.text().toInt());
return f;
}
else if(type == "cursor")
{
return QCursor(text.toInt());
}
else if(type == "time")
{
QDomElement h = node.namedItem("hour").toElement();
QDomElement m = node.namedItem("minute").toElement();
QDomElement s = node.namedItem("second").toElement();
return QTime(h.text().toInt(), m.text().toInt(), s.text().toInt());
}
else if(type == "date")
{
QDomElement y = node.namedItem("year").toElement();
QDomElement m = node.namedItem("month").toElement();
QDomElement d = node.namedItem("day").toElement();
return QDate(y.text().toInt(), m.text().toInt(), d.text().toInt());
}
else if(type == "datetime")
{
QDomElement h = node.namedItem("hour").toElement();
QDomElement m = node.namedItem("minute").toElement();
QDomElement s = node.namedItem("second").toElement();
QDomElement y = node.namedItem("year").toElement();
QDomElement mo = node.namedItem("month").toElement();
QDomElement d = node.namedItem("day").toElement();
QTime t(h.text().toInt(), m.text().toInt(), s.text().toInt());
QDate da(y.text().toInt(), mo.text().toInt(), d.text().toInt());
return QDateTime(da, t);
}
else if(type == "sizepolicy")
{
QDomElement h = node.namedItem("hsizetype").toElement();
QDomElement v = node.namedItem("vsizetype").toElement();
QDomElement hs = node.namedItem("horstretch").toElement();
QDomElement vs = node.namedItem("verstretch").toElement();
QSizePolicy s;
s.setHorData((QSizePolicy::SizeType)h.text().toInt());
s.setVerData((QSizePolicy::SizeType)v.text().toInt());
s.setHorStretch(hs.text().toInt());
s.setVerStretch(vs.text().toInt());
return s;
}
else if(type == "pixmap")
{
if(m_savePixmapsInline || !m_currentForm || !m_currentItem || !m_currentForm->pixmapCollection()->contains(text))
return loadImage(tag.ownerDocument(), text);
else
{
m_currentItem->setPixmapName(name.latin1(), text);
return m_currentForm->pixmapCollection()->getPixmap(text);
}
return QVariant(QPixmap());
}
else if(type == "enum")
return text;
else if(type == "set")
{
WidgetWithSubpropertiesInterface* subpropIface = dynamic_cast<WidgetWithSubpropertiesInterface*>(obj);
QObject *subobject = (subpropIface && subpropIface->subwidget()) ? subpropIface->subwidget() : obj;
const int count = subobject->metaObject()->findProperty(name.latin1(), true);
const QMetaProperty *meta = count!=-1 ? subobject->metaObject()->property(count, true) : 0;
if (meta) {
if (meta->isSetType()) {
QStrList keys;
const QStringList list( QStringList::split("|", text) );
for (QStringList::ConstIterator it = list.constBegin(); it != list.constEnd(); ++it)
keys.append((*it).latin1());
return meta->keysToValue(keys);
}
}
else {
// Metaproperty not found, probably because subwidget is not created.
// We will return a string list here with hope that names will
// be resolved and translated into an integer value later when subwidget is created,
// e.g. near KexiFormView::updateValuesForSubproperties()
return QStringList::split("|", text);
}
}
return QVariant();
}
/////////////////////////////////////////////////////////////////////////////
///////////// Functions to save/load widgets ////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
void
FormIO::saveWidget(ObjectTreeItem *item, QDomElement &parent, QDomDocument &domDoc, bool insideGridLayout)
{
if (!item)
return;
bool savedAlignment = false;
// we let Spring class handle saving itself
if(item->className() == "Spring")
{
Spring::saveSpring(item, parent, domDoc, insideGridLayout);
return;
}
bool resetCurrentForm = false;
m_currentItem = item;
if(!m_currentForm) // copying widget
{
resetCurrentForm = true;
m_currentForm = item->container() ? item->container()->form() : item->parent()->container()->form();
}
WidgetLibrary *lib = m_currentForm->library();
// if(item->container())
// lib = item->container()->form()->manager()->lib();
// else
// lib = item->parent()->container()->form()->manager()->lib();
// We create the "widget" element
QDomElement tclass = domDoc.createElement("widget");
parent.appendChild(tclass);
if(insideGridLayout)
{
tclass.setAttribute("row", item->gridRow());
tclass.setAttribute("column", item->gridCol());
if(item->spanMultipleCells())
{
tclass.setAttribute("rowspan", item->gridRowSpan());
tclass.setAttribute("colspan", item->gridColSpan());
}
}
if(!item->parent()) // Toplevel widget
tclass.setAttribute("class", "QWidget");
// For compatibility, HBox, VBox and Grid are saved as "QLayoutWidget"
else if(item->widget()->isA("HBox") || item->widget()->isA("VBox") || item->widget()->isA("Grid")
|| item->widget()->isA("HFlow") || item->widget()->isA("VFlow"))
tclass.setAttribute("class", "QLayoutWidget");
else if(item->widget()->isA("CustomWidget"))
tclass.setAttribute("class", item->className());
else // Normal widgets
tclass.setAttribute("class", lib->savingName(item->widget()->className()) );
savePropertyValue(tclass, domDoc, "name", item->widget()->property("name"), item->widget());
// Important: save dataSource property FIRST before properties like "alignment"
// - needed when subproperties are defined after subwidget creation, and subwidget is created after setting "dataSource"
// (this is the case for KexiDBAutoField)
//! @todo more properties like "dataSource" may needed here...
// if (-1 != item->widget()->metaObject()->findProperty("dataSource"))
// savePropertyValue(tclass, domDoc, "dataSource", item->widget()->property("dataSource"), item->widget());
// We don't want to save the geometry if the widget is inside a layout (so parent.tagName() == "grid" for example)
if(item && !item->parent()) {
// save form widget size, but not its position
savePropertyValue(tclass, domDoc, "geometry",
QRect( QPoint(0,0), item->widget()->size()),
item->widget());
}
// normal widget (if == "UI', it means we're copying widget)
else if(parent.tagName() == "widget" || parent.tagName() == "UI")
savePropertyValue(tclass, domDoc, "geometry", item->widget()->property("geometry"), item->widget());
// Save the buddy widget for a label
if(item->widget()->inherits("QLabel") && ((QLabel*)item->widget())->buddy())
savePropertyElement(tclass, domDoc, "property", "buddy", ((QLabel*)item->widget())->buddy()->name());
// We save every property in the modifProp list of the ObjectTreeItem
QVariantMap *map = new QVariantMap( *(item->modifiedProperties()) );
QMap<QString,QVariant>::ConstIterator endIt = map->constEnd();
for(QMap<QString,QVariant>::ConstIterator it = map->constBegin(); it != endIt; ++it)
{
const QCString name( it.key().latin1() );
if(name == "hAlign" || name == "vAlign" || name == "wordbreak" || name == "alignment") {
if(!savedAlignment) // not to save it twice
{
savePropertyValue(tclass, domDoc, "alignment", item->widget()->property("alignment"), item->widget());
savedAlignment = true;
}
}
else if(name == "name" || name == "geometry" || name == "layout") {
// these have already been saved
}
else {
savePropertyValue(tclass, domDoc, it.key().latin1(), item->widget()->property(it.key().latin1()),
item->widget(), lib);
}
}
delete map;
if(item->widget()->isA("CustomWidget")) {
QDomDocument doc("TEMP");
doc.setContent(item->m_unknownProps);
for(QDomNode n = doc.firstChild(); !n.isNull(); n = n.nextSibling()) {
tclass.appendChild(n.cloneNode());
}
}
// Saving container 's layout if there is one
QDomElement layout;
if(item->container() && item->container()->layoutType() != Container::NoLayout)
{
if(item->container()->layout()) // there is a layout
{
layout = domDoc.createElement("temp");
savePropertyValue(layout, domDoc, "name", "unnamed", item->widget());
if(item->modifiedProperties()->contains("layoutMargin"))
savePropertyElement(layout, domDoc, "property", "margin", item->container()->layoutMargin());
if(item->modifiedProperties()->contains("layoutSpacing"))
savePropertyElement(layout, domDoc, "property", "spacing", item->container()->layoutSpacing());
tclass.appendChild(layout);
}
}
int layoutType = item->container() ? item->container()->layoutType() : Container::NoLayout;
switch(layoutType) {
case Container::Grid: // grid layout
{
layout.setTagName("grid");
for(ObjectTreeItem *objIt = item->children()->first(); objIt; objIt = item->children()->next())
saveWidget(objIt, layout, domDoc, true);
break;
}
case Container::HBox: case Container::VBox:
{
// as we don't save geometry, we need to sort widgets in the right order, not creation order
WidgetList *list;
if(layout.tagName() == "hbox") {
list = new HorWidgetList(item->container()->form()->toplevelContainer()->widget());
layout.setTagName("hbox");
}
else {
list = new VerWidgetList(item->container()->form()->toplevelContainer()->widget());
layout.setTagName("vbox");
}
for(ObjectTreeItem *objTree = item->children()->first(); objTree; objTree = item->children()->next())
list->append(objTree->widget());
list->sort();
for(QWidget *obj = list->first(); obj; obj = list->next()) {
ObjectTreeItem *titem = item->container()->form()->objectTree()->lookup(obj->name());
if(item)
saveWidget(titem, layout, domDoc);
}
delete list;
break;
}
case Container::HFlow: case Container::VFlow:
{
layout.setTagName("grid");
KexiFlowLayout *flow = static_cast<KexiFlowLayout*>(item->container()->layout());
if(!flow) break;
WidgetList *list = (WidgetList*)flow->widgetList();
// save some special properties
savePropertyElement(layout, domDoc, "property", "customLayout", Container::layoutTypeToString(item->container()->layoutType()) );
savePropertyElement(layout, domDoc, "property", "justify", QVariant(static_cast<KexiFlowLayout*>(item->container()->layout())->isJustified(), 3) );
// fill the widget's grid info, ie just simulate grid layout
item->container()->createGridLayout(true);
for(QWidget *obj = list->first(); obj; obj = list->next()) {
ObjectTreeItem *titem = item->container()->form()->objectTree()->lookup(obj->name());
if(item)
saveWidget(titem, layout, domDoc, true); // save grid info for compatibility with QtDesigner
}
delete list;
break;
}
default:
{
for(ObjectTreeItem *objIt = item->children()->first(); objIt; objIt = item->children()->next())
saveWidget(objIt, tclass, domDoc);
}
}
addIncludeFileName(lib->includeFileName(item->widget()->className()), domDoc);
if(resetCurrentForm)
m_currentForm = 0;
m_currentItem = 0;
}
void
FormIO::cleanClipboard(QDomElement &uiElement)
{
// remove includehints element not needed
if(!uiElement.namedItem("includehints").isNull())
uiElement.removeChild(uiElement.namedItem("includehints"));
// and ensure images and connection are at the end
if(!uiElement.namedItem("connections").isNull())
uiElement.insertAfter(uiElement.namedItem("connections"), QDomNode());
if(!uiElement.namedItem("images").isNull())
uiElement.insertAfter(uiElement.namedItem("images"), QDomNode());
}
void
FormIO::loadWidget(Container *container, const QDomElement &el, QWidget *parent)
{
bool resetCurrentForm = false;
if(!m_currentForm) // pasting widget
{
resetCurrentForm = true;
m_currentForm = container->form();
}
// We first look for the widget's name
QString wname;
for(QDomNode n = el.firstChild(); !n.isNull(); n = n.nextSibling())
{
if((n.toElement().tagName() == "property") && (n.toElement().attribute("name") == "name"))
{
wname = n.toElement().text();
break;
}
}
QWidget *w;
QCString classname, alternate;
// We translate some name (for compatibility)
if(el.tagName() == "spacer")
classname = "Spring";
else if(el.attribute("class") == "QLayoutWidget")
{
for(QDomNode n = el.firstChild(); !n.isNull(); n = n.nextSibling())
{
QString tagName = n.toElement().tagName();
if(tagName == "property")
continue;
if(tagName == "hbox")
classname = "HBox";
else if(tagName == "vbox")
classname = "VBox";
else if(tagName == "grid") {
// first, see if it is flow layout
for(QDomNode child = n.firstChild(); !child.isNull(); child = child.nextSibling()) {
if((child.toElement().tagName() == "property")
&& (child.toElement().attribute("name") == "customLayout"))
{
classname = child.toElement().text().latin1();
break;
}
}
if(classname.isEmpty()) // normal grid
classname = "Grid";
}
}
}
else
// We check if this classname is an alternate one, and replace it if necessary
{
classname = el.attribute("class").latin1();
alternate = container->form()->library()->classNameForAlternate(classname);
}
if(alternate == "CustomWidget")
w = new CustomWidget(classname, container->widget(), wname.latin1());
else
{
if(!alternate.isNull())
classname = alternate;
int widgetOptions = WidgetFactory::DefaultOptions;
if (!container->form()->designMode()) {
widgetOptions ^= WidgetFactory::DesignViewMode;
}
if(!parent)
w = container->form()->library()->createWidget(classname, container->widget(),
wname.latin1(), container, widgetOptions);
else
w = container->form()->library()->createWidget(classname, parent, wname.latin1(),
container, widgetOptions);
}
if(!w)
return;
#if KDE_VERSION >= KDE_MAKE_VERSION(3,4,0)
//! @todo allow setting this for data view mode as well
if (m_currentForm->designMode()) {
//don't generate accelerators for widgets in design mode
KAcceleratorManager::setNoAccel(w);
}
#endif
w->setStyle(&(container->widget()->style()));
w->show();
// We create and insert the ObjectTreeItem at the good place in the ObjectTree
ObjectTreeItem *item = container->form()->objectTree()->lookup(wname);
if (!item) {
// not yet created
item = new ObjectTreeItem(container->form()->library()->displayName(classname),
wname, w, container);
if(parent) {
ObjectTreeItem *titem = container->form()->objectTree()->lookup(parent->name());
if(titem)
container->form()->objectTree()->addItem(titem, item);
else
kdDebug() << "FORMIO :: ERROR no parent widget " << endl;
}
else
container->form()->objectTree()->addItem(container->objectTree(), item);
}
//assign item for its widget if it supports DesignTimeDynamicChildWidgetHandler interface
//(e.g. KexiDBAutoField)
if (container->form()->designMode() && dynamic_cast<DesignTimeDynamicChildWidgetHandler*>(w)) {
dynamic_cast<DesignTimeDynamicChildWidgetHandler*>(w)->assignItem(item);
}
m_currentItem = item;
// if we are inside a Grid, we need to insert the widget in the good cell
if(container->layoutType() == Container::Grid) {
QGridLayout *layout = (QGridLayout*)container->layout();
if(el.hasAttribute("rowspan")) { // widget spans multiple cells
if(layout)
layout->addMultiCellWidget(w, el.attribute("row").toInt(), el.attribute("row").toInt() + el.attribute("rowspan").toInt()-1,
el.attribute("column").toInt(), el.attribute("column").toInt() + el.attribute("colspan").toInt()-1);
item->setGridPos(el.attribute("row").toInt(), el.attribute("column").toInt(), el.attribute("rowspan").toInt(),
el.attribute("colspan").toInt());
}
else {
if(layout)
layout->addWidget(w, el.attribute("row").toInt(), el.attribute("column").toInt());
item->setGridPos(el.attribute("row").toInt(), el.attribute("column").toInt(), 0, 0);
}
}
else if(container->layout())
container->layout()->add(w);
readChildNodes(item, container, el, w);
if(item->container() && item->container()->layout())
item->container()->layout()->activate();
// We add the autoSaveProperties in the modifProp list of the ObjectTreeItem, so that they are saved later
QValueList<QCString> list(container->form()->library()->autoSaveProperties(w->className()));
QValueList<QCString>::ConstIterator endIt = list.constEnd();
KFormDesigner::WidgetWithSubpropertiesInterface* subpropIface
= dynamic_cast<KFormDesigner::WidgetWithSubpropertiesInterface*>(w);
QWidget *subwidget = (subpropIface && subpropIface->subwidget()) ? subpropIface->subwidget() : w;
for(QValueList<QCString>::ConstIterator it = list.constBegin(); it != endIt; ++it) {
if(subwidget->metaObject()->findProperty(*it, true) != -1)
item->addModifiedProperty(*it, subwidget->property(*it));
}
if(resetCurrentForm)
m_currentForm = 0;
m_currentItem = 0;
}
void
FormIO::createToplevelWidget(Form *form, QWidget *container, QDomElement &el)
{
// We first look for the widget's name
QString wname;
for(QDomNode n = el.firstChild(); !n.isNull(); n = n.nextSibling())
{
if((n.toElement().tagName() == "property") && (n.toElement().attribute("name") == "name"))
{
wname = n.toElement().text();
break;
}
}
// And rename the widget and its ObjectTreeItem
container->setName(wname.latin1());
if(form->objectTree())
form->objectTree()->rename(form->objectTree()->name(), wname);
form->setInteractiveMode(false);
QDict<QLabel> *oldBuddies = 0;
if(m_buddies) // save old buddies (for subforms)
oldBuddies = m_buddies;
m_buddies = new QDict<QLabel>();
m_currentItem = form->objectTree();
readChildNodes(form->objectTree(), form->toplevelContainer(), el, container);
// Now the Form is fully loaded, we can assign the buddies
QDictIterator<QLabel> it(*m_buddies);
for(; it.current(); ++it)
{
ObjectTreeItem *item = form->objectTree()->lookup(it.currentKey());
if(!item || !item->widget())
{
kdDebug() << "Cannot assign buddy for widget " << it.current()->name() << " to " << it.currentKey() << endl;
continue;
}
it.current()->setBuddy(item->widget());
}
delete m_buddies;
m_buddies = oldBuddies; // and restore it
m_currentItem = 0;
form->setInteractiveMode(true);
}
void
FormIO::readChildNodes(ObjectTreeItem *item, Container *container, const QDomElement &el, QWidget *w)
{
QString eltag = el.tagName();
WidgetWithSubpropertiesInterface* subpropIface = dynamic_cast<WidgetWithSubpropertiesInterface*>(w);
QWidget *subwidget = (subpropIface && subpropIface->subwidget()) ? subpropIface->subwidget() : w;
for(QDomNode n = el.firstChild(); !n.isNull(); n = n.nextSibling())
{
QString tag = n.toElement().tagName();
QDomElement node = n.toElement();
if((tag == "property") || (tag == "attribute"))
{
QString name = node.attribute("name");
//if(name == "geometry")
// hasGeometryProp = true;
if( ((eltag == "grid") || (eltag == "hbox") || (eltag == "vbox")) &&
(name == "name")) // we don't care about layout names
continue;
if (node.attribute("subwidget")=="true") {
//this is property for subwidget: remember it for delayed setting
//because now the subwidget could be not created yet (true e.g. for KexiDBAutoField)
const QVariant val( readPropertyValue(node.firstChild(), w, name) );
kdDebug() << val.toStringList() << endl;
item->addSubproperty( name.latin1(), val );
//subwidget->setProperty(name.latin1(), val);
item->addModifiedProperty( name.latin1(), val );
continue;
}
// We cannot assign the buddy now as the buddy widget may not be created yet
if(name == "buddy")
m_buddies->insert(readPropertyValue(node.firstChild(), w, name).toString(), (QLabel*)w);
else if(((eltag == "grid") || (eltag == "hbox") || (eltag == "vbox")) &&
item->container() && item->container()->layout()) {
// We load the margin of a Layout
if(name == "margin") {
int margin = readPropertyValue(node.firstChild(), w, name).toInt();
item->container()->setLayoutMargin(margin);
item->container()->layout()->setMargin(margin);
}
// We load the spacing of a Layout
else if(name == "spacing") {
int spacing = readPropertyValue(node.firstChild(), w, name).toInt();
item->container()->setLayoutSpacing(spacing);
item->container()->layout()->setSpacing(spacing);
}
else if((name == "justify")){
bool justify = readPropertyValue(node.firstChild(), w, name).toBool();
KexiFlowLayout *flow = static_cast<KexiFlowLayout*>(item->container()->layout());
if(flow)
flow->setJustified(justify);
}
}
// If the object doesn't have this property, we let the Factory handle it (maybe a special property)
else if(subwidget->metaObject()->findProperty(name.latin1(), true) == -1)
{
if(w->className() == QString::fromLatin1("CustomWidget"))
item->storeUnknownProperty(node);
else {
bool read = container->form()->library()->readSpecialProperty(
w->className(), node, w, item);
if(!read) // the factory doesn't support this property neither
item->storeUnknownProperty(node);
}
}
else // we have a normal property, let's load it
{
QVariant val( readPropertyValue(node.firstChild(), w, name) );
if(name == "geometry" && dynamic_cast<FormWidget*>(w)) {
//fix geometry if needed - this is top level form widget
QRect r( val.toRect() );
if (r.left()<0) //negative X!
r.moveLeft(0);
if (r.top()<0) //negative Y!
r.moveTop(0);
val = r;
}
subwidget->setProperty(name.latin1(), val);
// int count = w->metaObject()->findProperty(name, true);
// const QMetaProperty *meta = w->metaObject()->property(count, true);
// if(meta && meta->isEnumType()) {
// val = w->property(name.latin1()); //update: we want a numeric value of enum
// }
item->addModifiedProperty(name.latin1(), val);
}
}
else if(tag == "widget") // a child widget
{
if(item->container()) // we are a Container
loadWidget(item->container(), node);
else
loadWidget(container, node, w);
}
else if(tag == "spacer") {
loadWidget(container, node, w);
}
else if(tag == "grid") {
// first, see if it is flow layout
QString layoutName;
for(QDomNode child = node.firstChild(); !child.isNull(); child = child.nextSibling()) {
if((child.toElement().tagName() == "property") && (child.toElement().attribute("name") == "customLayout")) {
layoutName = child.toElement().text();
break;
}
}
if(layoutName == "HFlow") {
item->container()->m_layType = Container::HFlow;
KexiFlowLayout *layout = new KexiFlowLayout(item->widget());
layout->setOrientation(Horizontal);
item->container()->m_layout = (QLayout*)layout;
}
else if(layoutName == "VFlow") {
item->container()->m_layType = Container::VFlow;
KexiFlowLayout *layout = new KexiFlowLayout(item->widget());
layout->setOrientation(Vertical);
item->container()->m_layout = (QLayout*)layout;
}
else { // grid layout
item->container()->m_layType = Container::Grid;
QGridLayout *layout = new QGridLayout(item->widget(), 1, 1);
item->container()->m_layout = (QLayout*)layout;
}
readChildNodes(item, container, node, w);
}
else if(tag == "vbox") {
item->container()->m_layType = Container::VBox;
QVBoxLayout *layout = new QVBoxLayout(item->widget());
item->container()->m_layout = (QLayout*)layout;
readChildNodes(item, container, node, w);
}
else if(tag == "hbox") {
item->container()->m_layType = Container::HBox;
QHBoxLayout *layout = new QHBoxLayout(item->widget());
item->container()->m_layout = (QLayout*)layout;
readChildNodes(item, container, node, w);
}
else {// unknown tag, we let the Factory handle it
if(w->className() == QString::fromLatin1("CustomWidget"))
item->storeUnknownProperty(node);
else {
bool read = container->form()->library()->readSpecialProperty(
w->className(), node, w, item);
if(!read) // the factory doesn't suport this property neither
item->storeUnknownProperty(node);
}
}
}
}
/////////////////////////////////////////////////////////////////////////////
///////////// Helper functions //////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
void
FormIO::addIncludeFileName(const QString &include, QDomDocument &domDoc)
{
if(include.isEmpty())
return;
QDomElement includes;
QDomElement uiEl = domDoc.namedItem("UI").toElement();
if(uiEl.namedItem("includehints").isNull())
{
includes = domDoc.createElement("includehints");
uiEl.appendChild(includes);
}
else
includes = uiEl.namedItem("includehints").toElement();
// Check if this include has already been saved, and return if it is the case
for(QDomNode n = includes.firstChild(); !n.isNull(); n = n.nextSibling())
{
if(n.toElement().text() == include)
return;
}
QDomElement includeHint = domDoc.createElement("includehint");
includes.appendChild(includeHint);
QDomText includeText = domDoc.createTextNode(include);
includeHint.appendChild(includeText);
}
//////// Qt Designer code: these two functions were copied (and adapted) from Qt Designer for compatibility ////////
QString
FormIO::saveImage(QDomDocument &domDoc, const QPixmap &pixmap)
{
QDomNode node = domDoc.namedItem("images");
QDomElement images;
if(node.isNull())
{
images = domDoc.createElement("images");
QDomElement ui = domDoc.namedItem("UI").toElement();
ui.appendChild(images);
}
else
images = node.toElement();
int count = images.childNodes().count();
QDomElement image = domDoc.createElement("image");
QString name = "image" + QString::number(count);
image.setAttribute("name", name);
QImage img = pixmap.convertToImage();
QByteArray ba;
QBuffer buf(ba);
buf.open( IO_WriteOnly | IO_Translate );
QString format = img.depth() > 1 ? "XPM" : "XBM";
QImageIO iio( &buf, format.latin1() );
iio.setImage( img );
iio.write();
buf.close();
QByteArray bazip = qCompress( ba );
ulong len = bazip.size();
QDomElement data = domDoc.createElement("data");
data.setAttribute("format", format + ".GZ");
data.setAttribute("length", ba.size());
static const char hexchars[] = "0123456789abcdef";
QString content;
for(int i = 4; i < (int)len; ++i)
{
uchar s = (uchar) bazip[i];
content += hexchars[s >> 4];
content += hexchars[s & 0x0f];
}
QDomText text = domDoc.createTextNode(content);
data.appendChild(text);
image.appendChild(data);
images.appendChild(image);
return name;
}
QPixmap
FormIO::loadImage(QDomDocument domDoc, const QString& name)
{
QDomElement images = domDoc.namedItem("UI").namedItem("images").toElement();
if(images.isNull())
return 0;
QDomElement image;
for(QDomNode n = images.firstChild(); !n.isNull(); n = n.nextSibling())
{
if((n.toElement().tagName() == "image") && (n.toElement().attribute("name") == name))
{
image = n.toElement();
break;
}
}
QPixmap pix;
QString data = image.namedItem("data").toElement().text();
const int lengthOffset = 4;
int baSize = data.length() / 2 + lengthOffset;
uchar *ba = new uchar[baSize];
for(int i = lengthOffset; i < baSize; ++i)
{
char h = data[2 * (i-lengthOffset)].latin1();
char l = data[2 * (i-lengthOffset) + 1].latin1();
uchar r = 0;
if(h <= '9')
r += h - '0';
else
r += h - 'a' + 10;
r = r << 4;
if(l <= '9')
r += l - '0';
else
r += l - 'a' + 10;
ba[i] = r;
}
QString format = image.namedItem("data").toElement().attribute("format", "PNG");
if((format == "XPM.GZ") || (format == "XBM.GZ"))
{
ulong len = image.attribute("length").toULong();
if(len < data.length() * 5)
len = data.length() * 5;
// qUncompress() expects the first 4 bytes to be the expected length of
// the uncompressed data
ba[0] = ( len & 0xff000000 ) >> 24;
ba[1] = ( len & 0x00ff0000 ) >> 16;
ba[2] = ( len & 0x0000ff00 ) >> 8;
ba[3] = ( len & 0x000000ff );
QByteArray baunzip = qUncompress(ba, baSize);
pix.loadFromData( (const uchar*)baunzip.data(), baunzip.size(), format.left(format.find('.')).latin1() );
}
else
pix.loadFromData( (const uchar*)ba+lengthOffset, baSize-lengthOffset, format.latin1() );
delete[] ba;
return pix;
}
//////// End of Qt Designer code ////////////////////////////////////////////////////////
#include "formIO.moc"
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