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Removed useless files from docs.

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This commit is contained in:
Hugo Parente Lima 2011-03-02 17:50:44 -03:00
commit 97a16f10ab
54 changed files with 0 additions and 1743 deletions
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18
doc/codesnippets/doc/src/snippets/code/src_activeqt_container_qaxscript.cpp
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@ -1,18 +0,0 @@
//! [0]
function setNumber(number)
{
n = number;
}
//! [0]
//! [1]
QValueList args;
args << 5;
script->call("setNumber(const QVariant&)", args);
//! [1]
//! [2]
script->call("setNumber(5)");
//! [2]

60
doc/codesnippets/doc/src/snippets/code/src_activeqt_control_qaxbindable.cpp
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@ -1,60 +0,0 @@
//! [0]
class MyActiveX : public QWidget, public QAxBindable
{
Q_OBJECT
Q_PROPERTY(int value READ value WRITE setValue)
public:
MyActiveX(QWidget *parent = 0);
...
int value() const;
void setValue(int);
};
//! [0]
//! [1]
void MyActiveQt::setText(const QString &text)
{
if (!requestPropertyChange("text"))
return;
// update property
propertyChanged("text");
}
//! [1]
//! [2]
long AxImpl::queryInterface(const QUuid &iid, void **iface)
{
*iface = 0;
if (iid == IID_ISomeCOMInterface)
*iface = (ISomeCOMInterface*)this;
else
return E_NOINTERFACE;
AddRef();
return S_OK;
}
//! [2]
//! [3]
HRESULT AxImpl::QueryInterface(REFIID iid, void **iface)
{
return controllingUnknown()->QueryInterface(iid, iface);
}
ulong AxImpl::AddRef()
{
return controllingUnknown()->AddRef();
}
ulong AxImpl::Release()
{
return controllingUnknown()->Release();
}
//! [3]

155
doc/codesnippets/doc/src/snippets/code/src_activeqt_control_qaxfactory.cpp
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@ -1,155 +0,0 @@
//! [0]
QStringList ActiveQtFactory::featureList() const
{
QStringList list;
list << "ActiveX1";
list << "ActiveX2";
return list;
}
QObject *ActiveQtFactory::createObject(const QString &key)
{
if (key == "ActiveX1")
return new ActiveX1(parent);
if (key == "ActiveX2")
return new ActiveX2(parent);
return 0;
}
const QMetaObject *ActiveQtFactory::metaObject(const QString &key) const
{
if (key == "ActiveX1")
return &ActiveX1::staticMetaObject;
if (key == "ActiveX2")
return &ActiveX2::staticMetaObject;
}
QUuid ActiveQtFactory::classID(const QString &key) const
{
if (key == "ActiveX1")
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return QUuid();
}
QUuid ActiveQtFactory::interfaceID(const QString &key) const
{
if (key == "ActiveX1")
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return QUuid();
}
QUuid ActiveQtFactory::eventsID(const QString &key) const
{
if (key == "ActiveX1")
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return QUuid();
}
QAXFACTORY_EXPORT(
ActiveQtFactory, // factory class
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
//! [0]
//! [1]
QAXFACTORY_BEGIN(
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
QAXCLASS(Class1)
QAXCLASS(Class2)
QAXFACTORY_END()
//! [1]
//! [2]
#include <qapplication.h>
#include <qaxfactory.h>
#include "theactivex.h"
QAXFACTORY_DEFAULT(
TheActiveX, // widget class
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // class ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // interface ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // event interface ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
//! [2]
//! [3]
settings->setValue("/CLSID/" + classID(key)
+ "/Implemented Categories/"
+ "/{00000000-0000-0000-000000000000}/.",
QString());
//! [3]
//! [4]
settings->remove("/CLSID/" + classID(key)
+ "/Implemented Categories"
+ "/{00000000-0000-0000-000000000000}/.");
//! [4]
//! [5]
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
if (!QAxFactory::isServer()) {
// initialize for stand-alone execution
}
return app.exec();
}
//! [5]
//! [6]
if (QAxFactory::isServer()) {
QAxFactory::stopServer();
QAxFactory::startServer(QAxFactory::SingleInstance);
}
//! [6]
//! [7]
#include <qaxfactory.h>
#include "theactivex.h"
QAXFACTORY_DEFAULT(
TheActiveX, // widget class
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // class ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // interface ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // event interface ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
//! [7]
//! [8]
QAXFACTORY_EXPORT(
MyFactory, // factory class
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
//! [8]
//! [9]
QAXFACTORY_BEGIN(
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
QAXCLASS(Class1)
QAXCLASS(Class2)
QAXFACTORY_END()
//! [9]

20
doc/codesnippets/doc/src/snippets/code/src_qdbus_qdbusabstractinterface.cpp
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@ -1,20 +0,0 @@
//! [0]
QString value = retrieveValue();
QDBusMessage reply;
QDBusReply<int> api = interface->call(QLatin1String("GetAPIVersion"));
if (api >= 14)
reply = interface->call(QLatin1String("ProcessWorkUnicode"), value);
else
reply = interface->call(QLatin1String("ProcessWork"), QLatin1String("UTF-8"), value.toUtf8());
//! [0]
//! [1]
QString value = retrieveValue();
QDBusPendingCall pcall = interface->asyncCall(QLatin1String("Process"), value);
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pcall, this);
QObject::connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)),
this, SLOT(callFinishedSlot(QDBusPendingCallWatcher*)));
//! [1]

32
doc/codesnippets/doc/src/snippets/code/src_qdbus_qdbuscontext.cpp
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@ -1,32 +0,0 @@
//! [0]
class MyObject: public QObject,
protected QDBusContext
{
Q_OBJECT
QDBusConnection conn;
QDBusMessage msg;
...
protected slots:
void process();
public slots:
void methodWithError();
QString methodWithDelayedReply();
};
void MyObject::methodWithError()
{
sendErrorReply(QDBusError::NotSupported,
"The method call 'methodWithError()' is not supported");
}
QString MyObject::methodWithDelayedReply()
{
conn = connection();
msg = message();
setDelayedReply(true);
QMetaObject::invokeMethod(this, "process", Qt::QueuedConnection);
return QString();
}
//! [0]

11
doc/codesnippets/doc/src/snippets/code/src_qdbus_qdbusinterface.cpp
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@ -1,11 +0,0 @@
//! [0]
QDBusInterface remoteApp( "com.example.Calculator", "/Calculator/Operations",
"org.mathematics.RPNCalculator" );
remoteApp.call( "PushOperand", 2 );
remoteApp.call( "PushOperand", 2 );
remoteApp.call( "ExecuteOperation", "+" );
QDBusReply<int> reply = remoteApp.call( "PopOperand" );
if ( reply.isValid() )
printf( "%d", reply.value() ); // prints 4
//! [0]

3
doc/codesnippets/doc/src/snippets/code/src_qdbus_qdbusmetatype.cpp
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@ -1,3 +0,0 @@
//! [0]
qDBusRegisterMetaType<MyClass>();
//! [0]

14
doc/codesnippets/doc/src/snippets/code/src_qdbus_qdbusreply.cpp
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@ -1,14 +0,0 @@
//! [0]
QDBusReply<QString> reply = interface->call("RemoteMethod");
if (reply.isValid())
// use the returned value
useValue(reply.value());
else
// call failed. Show an error condition.
showError(reply.error());
//! [0]
//! [1]
QString reply = interface->call("RemoteMethod");
//! [1]

51
doc/codesnippets/doc/src/snippets/code/src_qt3support_canvas_q3canvas.cpp
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@ -1,51 +0,0 @@
//! [0]
QPrinter pr;
if (pr.setup()) {
QPainter p(&pr);
canvas.drawArea(canvas.rect(), &p);
}
//! [0]
//! [1]
void MyCanvasView::contentsMousePressEvent(QMouseEvent* e)
{
Q3CanvasItemList l = canvas()->collisions(e->pos());
for (Q3CanvasItemList::Iterator it=l.begin(); it!=l.end(); ++it) {
if ((*it)->rtti() == Q3CanvasRectangle::RTTI)
qDebug("A Q3CanvasRectangle lies somewhere at this point");
}
}
//! [1]
//! [2]
QMatrix wm;
wm.scale(2, 2); // Zooms in by 2 times
wm.rotate(90); // Rotates 90 degrees counter clockwise
// around the origin.
wm.translate(0, -canvas->height());
// moves the canvas down so what was visible
// before is still visible.
myCanvasView->setWorldMatrix(wm);
//! [2]
//! [3]
QRect rc = QRect(myCanvasView->contentsX(), myCanvasView->contentsY(),
myCanvasView->visibleWidth(), myCanvasView->visibleHeight());
QRect canvasRect = myCanvasView->inverseWorldMatrix().mapRect(rc);
//! [3]
//! [4]
Q3CanvasItem* item;
// Find an item, e.g. with Q3CanvasItem::collisions().
...
if (item->rtti() == MySprite::RTTI) {
MySprite* s = (MySprite*)item;
if (s->isDamagable()) s->loseHitPoints(1000);
if (s->isHot()) myself->loseHitPoints(1000);
...
}
//! [4]

229
doc/codesnippets/doc/src/snippets/code/src_qt3support_dialogs_q3filedialog.cpp
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@ -1,229 +0,0 @@
//! [0]
QString s = Q3FileDialog::getOpenFileName(
"/home",
"Images (*.png *.xpm *.jpg)",
this,
"open file dialog",
"Choose a file");
//! [0]
//! [1]
"Images (*.png *.xpm *.jpg);;Text files (*.txt);;XML files (*.xml)"
//! [1]
//! [2]
Q3FileDialog* fd = new Q3FileDialog(this, "file dialog", true);
fd->setMode(Q3FileDialog::AnyFile);
//! [2]
//! [3]
fd->setFilter("Images (*.png *.xpm *.jpg)");
//! [3]
//! [4]
fd->setViewMode(Q3FileDialog::Detail);
//! [4]
//! [5]
QString fileName;
if (fd->exec() == QDialog::Accepted)
fileName = fd->selectedFile();
//! [5]
//! [6]
class Preview : public QLabel, public Q3FilePreview
{
public:
Preview(QWidget *parent=0) : QLabel(parent) {}
void previewUrl(const Q3Url &u)
{
QString path = u.path();
QPixmap pix(path);
if (pix.isNull())
setText("This is not a pixmap");
else
setPixmap(pix);
}
};
//! [6]
//! [7]
Preview* p = new Preview;
Q3FileDialog* fd = new Q3FileDialog(this);
fd->setContentsPreviewEnabled(true);
fd->setContentsPreview(p, p);
fd->setPreviewMode(Q3FileDialog::Contents);
fd->show();
//! [7]
//! [8]
QStringList list = myFileDialog.selectedFiles();
QStringList::Iterator it = list.begin();
while(it != list.end()) {
myProcessing(*it);
++it;
}
//! [8]
//! [9]
fd->setFilter("All C++ files (*.cpp *.cc *.C *.cxx *.c++)");
fd->setFilter("*.cpp *.cc *.C *.cxx *.c++");
fd->setFilter("All C++ files (*.cpp;*.cc;*.C;*.cxx;*.c++)");
fd->setFilter("*.cpp;*.cc;*.C;*.cxx;*.c++");
//! [9]
//! [10]
QString s = Q3FileDialog::getOpenFileName(
"/home",
"Images (*.png *.xpm *.jpg)",
this,
"open file dialog",
"Choose a file to open");
//! [10]
//! [11]
QString s = Q3FileDialog::getSaveFileName(
"/home",
"Images (*.png *.xpm *.jpg)",
this,
"save file dialog",
"Choose a filename to save under");
//! [11]
//! [12]
QString s = Q3FileDialog::getExistingDirectory(
"/home",
this,
"get existing directory",
"Choose a directory",
true);
//! [12]
//! [13]
MyFileDialog::MyFileDialog(QWidget* parent, const char* name) :
Q3FileDialog(parent, name)
{
QLabel* label = new QLabel("Added widgets", this);
QLineEdit* lineedit = new QLineEdit(this);
QPushButton* pushbutton = new QPushButton(this);
addWidgets(label, lineedit, pushbutton);
}
//! [13]
//! [14]
QString types("Image files (*.png *.xpm *.jpg);;"
"Text files (*.txt);;"
"Any files (*)");
Q3FileDialog fd = new Q3FileDialog(this);
fd->setFilters(types);
fd->show();
//! [14]
//! [15]
Q3FileDialog* fd = new Q3FileDialog(this);
fd->addFilter("Images (*.png *.jpg *.xpm)");
fd->show();
//! [15]
//! [16]
QStringList files = Q3FileDialog::getOpenFileNames(
"Images (*.png *.xpm *.jpg)",
"/home",
this,
"open files dialog",
"Select one or more files to open");
//! [16]
//! [17]
QStringList list = files;
QStringList::Iterator it = list.begin();
while(it != list.end()) {
myProcessing(*it);
++it;
}
//! [17]
//! [18]
class Preview : public QLabel, public Q3FilePreview
{
public:
Preview(QWidget *parent=0) : QLabel(parent) {}
void previewUrl(const Q3Url &u)
{
QString path = u.path();
QPixmap pix(path);
if (pix.isNull())
setText("This is not a pixmap");
else
setText("This is a pixmap");
}
};
//...
int main(int argc, char** argv)
{
Preview* p = new Preview;
Q3FileDialog* fd = new Q3FileDialog(this);
fd->setInfoPreviewEnabled(true);
fd->setInfoPreview(p, p);
fd->setPreviewMode(Q3FileDialog::Info);
fd->show();
}
//! [18]
//! [19]
class Preview : public QLabel, public Q3FilePreview
{
public:
Preview(QWidget *parent=0) : QLabel(parent) {}
void previewUrl(const Q3Url &u)
{
QString path = u.path();
QPixmap pix(path);
if (pix.isNull())
setText("This is not a pixmap");
else
setPixmap(pix);
}
};
//...
int main(int argc, char** argv)
{
Preview* p = new Preview;
Q3FileDialog* fd = new Q3FileDialog(this);
fd->setContentsPreviewEnabled(true);
fd->setContentsPreview(p, p);
fd->setPreviewMode(Q3FileDialog::Contents);
fd->show();
}
//! [19]

41
doc/codesnippets/doc/src/snippets/code/src_qt3support_dialogs_q3progressdialog.cpp
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@ -1,41 +0,0 @@
//! [0]
Q3ProgressDialog progress("Copying files...", "Abort Copy", numFiles,
this, "progress", true);
for (int i = 0; i < numFiles; i++) {
progress.setProgress(i);
qApp->processEvents();
if (progress.wasCanceled())
break;
//... copy one file
}
progress.setProgress(numFiles);
//! [0]
//! [1]
Operation::Operation(QObject *parent = 0)
: QObject(parent), steps(0)
{
pd = new Q3ProgressDialog("Operation in progress.", "Cancel", 100);
connect(pd, SIGNAL(canceled()), this, SLOT(cancel()));
t = new QTimer(this);
connect(t, SIGNAL(timeout()), this, SLOT(perform()));
t->start(0);
}
void Operation::perform()
{
pd->setProgress(steps);
//... perform one percent of the operation
steps++;
if (steps > pd->totalSteps())
t->stop();
}
void Operation::cancel()
{
t->stop();
//... cleanup
}
//! [1]

75
doc/codesnippets/doc/src/snippets/code/src_qt3support_itemviews_q3iconview.cpp
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@ -1,75 +0,0 @@
//! [0]
(void) new Q3IconViewItem(
iconView, // A pointer to a Q3IconView
"This is the text of the item",
aPixmap);
//! [0]
//! [1]
Q3IconViewItem *item;
for (item = iconView->firstItem(); item; item = item->nextItem())
do_something_with(item);
//! [1]
//! [2]
Q3IconViewItem *item;
for (item = iconView->firstItem(); item; item = item->nextItem())
do_something_with(item);
//! [2]
//! [3]
int MyIconViewItem::compare(Q3IconViewItem *i) const
{
return key().compare(i->key());
}
//! [3]
//! [4]
Q3IconView *iv = new Q3IconView(this);
QDir dir(path, "*.xpm");
for (uint i = 0; i < dir.count(); i++) {
(void) new Q3IconViewItem(iv, dir[i], QPixmap(path + dir[i]));
}
iv->resize(600, 400);
iv->show();
//! [4]
//! [5]
for (Q3IconViewItem *item = iv->firstItem(); item; item = item->nextItem())
do_something(item);
//! [5]
//! [6]
Q3DragObject *MyIconView::dragObject()
{
return new Q3TextDrag(currentItem()->text(), this);
}
//! [6]
//! [7]
bool MyIconViewItem::acceptDrop(const QMimeSource *mime) const
{
if (mime->provides("text/plain"))
return true;
return false;
}
void MyIconViewItem::dropped(QDropEvent *evt, const Q3ValueList<Q3IconDragItem>&)
{
QString label;
if (Q3TextDrag::decode(evt, label))
setText(label);
}
//! [7]
//! [8]
(void) new Q3IconViewItem(myIconview, "The text of the item", aPixmap);
//! [8]

73
doc/codesnippets/doc/src/snippets/code/src_qt3support_itemviews_q3listview.cpp
View file

@ -1,73 +0,0 @@
//! [0]
(void) new Q3ListViewItem(listView, "Column 1", "Column 2");
(void) new Q3ListViewItem(listView->firstChild(), "A", "B", "C");
//! [0]
//! [1]
Q3ListViewItem * myChild = myItem->firstChild();
while(myChild) {
doSomething(myChild);
myChild = myChild->nextSibling();
}
//! [1]
//! [2]
Q3ListViewItemIterator it(listview);
while (it.current()) {
Q3ListViewItem *item = it.current();
doSomething(item);
++it;
}
//! [2]
//! [3]
int MyListViewItem::compare(Q3ListViewItem *i, int col,
bool ascending) const
{
return key(col, ascending).compare(i->key(col, ascending));
}
//! [3]
//! [4]
Q3ListViewItem *i = itemAt(p);
if (i) {
if (p.x() > header()->sectionPos(header()->mapToIndex(0)) +
treeStepSize() * (i->depth() + (rootIsDecorated() ? 1 : 0)) + itemMargin() ||
p.x() < header()->sectionPos(header()->mapToIndex(0))) {
; // p is not on root decoration
else
; // p is on the root decoration
}
//! [4]
//! [5]
QRect r(listView->itemRect(item));
r.setHeight(qMin(item->totalHeight(),
listView->viewport->height() - r.y()))
//! [5]
//! [6]
QList<Q3ListViewItem *> lst;
Q3ListViewItemIterator it(myListView);
while (it.current()) {
if (it.current()->isSelected())
lst.append(it.current());
++it;
}
//! [6]
//! [7]
QList<Q3ListViewItem *> lst;
Q3ListViewItemIterator it(myListView, Selected);
while (it.current()) {
lst.append(it.current());
++it;
}
//! [7]

57
doc/codesnippets/doc/src/snippets/code/src_qt3support_itemviews_q3table.cpp
View file

@ -1,57 +0,0 @@
void wrapInFunction()
{
//! [0]
for (int row = 0; row < table->numRows(); row++) {
for (int col = 0; col < table->numCols(); col++) {
table->setItem(row, col,
new Q3TableItem(table, Q3TableItem::WhenCurrent, QString::number(row * col)));
}
}
//! [0]
//! [1]
QWidget* MyTableItem::createEditor() const
{
QHBox* hbox = new QHBox(table()->viewport());
hbox->setFocusProxy(new QLineEdit(hbox));
new QLineEdit(hbox);
return hbox;
}
//! [1]
//! [2]
p->setClipRect(table()->cellRect(row, col), QPainter::ClipPainter);
//... your drawing code
p->setClipping(false);
//! [2]
//! [3]
Q3Table *table = new Q3Table(100, 250, this);
table->setPixmap(3, 2, pix);
table->setText(3, 2, "A pixmap");
//! [3]
//! [4]
p->setClipRect(cellRect(row, col), QPainter::CoordPainter);
//... your drawing code
p->setClipping(false);
//! [4]
//! [5]
Q3TableItem *i = item(row, col);
if (initFromCell || (i && !i->isReplaceable()))
// If we had a Q3TableItem ask the base class to create the editor
return Q3Table::createEditor(row, col, initFromCell);
else
return ...(create your own editor)
//! [5]
}

58
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3dns.cpp
View file

@ -1,58 +0,0 @@
//! [0]
QStringList list = myDns.qualifiedNames();
QStringList::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [0]
//! [1]
Q3ValueList<QHostAddress> list = myDns.addresses();
Q3ValueList<QHostAddress>::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [1]
//! [2]
Q3ValueList<Q3Dns::MailServer> list = myDns.mailServers();
Q3ValueList<Q3Dns::MailServer>::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [2]
//! [3]
Q3ValueList<Q3Dns::Server> list = myDns.servers();
Q3ValueList<Q3Dns::Server>::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [3]
//! [4]
QStringList list = myDns.hostNames();
QStringList::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [4]
//! [5]
QStringList list = myDns.texts();
QStringList::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [5]

65
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3ftp.cpp
View file

@ -1,65 +0,0 @@
//! [0]
QUrlOperator op( "ftp://ftp.trolltech.com" );
op.listChildren(); // Asks the server to provide a directory listing
//! [0]
//! [1]
Q3Ftp *ftp = new Q3Ftp( this ); // this is an optional QObject parent
ftp->connectToHost( "ftp.trolltech.com" );
ftp->login();
//! [1]
//! [2]
ftp->connectToHost( "ftp.trolltech.com" ); // id == 1
ftp->login(); // id == 2
ftp->cd( "qt" ); // id == 3
ftp->get( "INSTALL" ); // id == 4
ftp->close(); // id == 5
//! [2]
//! [3]
start( 1 )
stateChanged( HostLookup )
stateChanged( Connecting )
stateChanged( Connected )
finished( 1, false )
start( 2 )
stateChanged( LoggedIn )
finished( 2, false )
start( 3 )
finished( 3, false )
start( 4 )
dataTransferProgress( 0, 3798 )
dataTransferProgress( 2896, 3798 )
readyRead()
dataTransferProgress( 3798, 3798 )
readyRead()
finished( 4, false )
start( 5 )
stateChanged( Closing )
stateChanged( Unconnected )
finished( 5, false )
done( false )
//! [3]
//! [4]
start( 1 )
stateChanged( HostLookup )
stateChanged( Connecting )
stateChanged( Connected )
finished( 1, false )
start( 2 )
finished( 2, true )
done( true )
//! [4]

74
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3http.cpp
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@ -1,74 +0,0 @@
//! [0]
content-type: text/html
//! [0]
//! [1]
header.setValue( "content-type", "text/html" );
QString contentType = header.value( "content-type" );
//! [1]
//! [2]
QUrlOperator op( "http://qtsoftware.com" );
op.get( "index.html" );
//! [2]
//! [3]
Q3HttpRequestHeader header( "GET", "/index.html" );
header.setValue( "Host", "qtsoftware.com" );
http->setHost( "qtsoftware.com" );
http->request( header );
//! [3]
//! [4]
http->setHost( "qtsoftware.com" ); // id == 1
http->get( "/index.html" ); // id == 2
//! [4]
//! [5]
requestStarted( 1 )
requestFinished( 1, false )
requestStarted( 2 )
stateChanged( Connecting )
stateChanged( Sending )
dataSendProgress( 77, 77 )
stateChanged( Reading )
responseHeaderReceived( responseheader )
dataReadProgress( 5388, 0 )
readyRead( responseheader )
dataReadProgress( 18300, 0 )
readyRead( responseheader )
stateChanged( Connected )
requestFinished( 2, false )
done( false )
stateChanged( Closing )
stateChanged( Unconnected )
//! [5]
//! [6]
http->setHost( "www.foo.bar" ); // id == 1
http->get( "/index.html" ); // id == 2
http->post( "register.html", data ); // id == 3
//! [6]
//! [7]
requestStarted( 1 )
requestFinished( 1, false )
requestStarted( 2 )
stateChanged( HostLookup )
requestFinished( 2, true )
done( true )
stateChanged( Unconnected )
//! [7]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3localfs.cpp
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@ -1,4 +0,0 @@
//! [0]
Q3UrlOperator op( "file:///tmp" );
op.listChildren(); // Asks the server to provide a directory listing
//! [0]

8
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3networkprotocol.cpp
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@ -1,8 +0,0 @@
//! [0]
Q3NetworkProtocol::registerNetworkProtocol( "nntp", new Q3NetworkProtocolFactory<Nntp> );
//! [0]
//! [1]
Q3Ftp *ftp = Q3NetworkProtocol::getNetworkProtocol( "ftp" );
//! [1]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3socket.cpp
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@ -1,4 +0,0 @@
//! [0]
while( !socket->canReadLine() ) // WRONG
;
//! [0]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3socketdevice.cpp
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@ -1,4 +0,0 @@
//! [0]
::close( sd->socket() );
sd->writeBlock( someData, 42 );
//! [0]

43
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3url.cpp
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@ -1,43 +0,0 @@
//! [0]
Q3Url url( "http://qtsoftware.com" );
// or
Q3Url url( "file:///home/myself/Mail", "Inbox" );
//! [0]
//! [1]
Q3Url url( "http://qtsoftware.com" );
QString s = url;
// or
QString s( "http://qtsoftware.com" );
Q3Url url( s );
//! [1]
//! [2]
Q3Url url( "ftp://ftp.trolltech.com/qt/source", "qt-2.1.0.tar.gz" );
//! [2]
//! [3]
Q3Url url( "ftp://ftp.trolltech.com/qt/source", "/usr/local" );
//! [3]
//! [4]
Q3Url url( "ftp://ftp.trolltech.com/qt/source", "file:///usr/local" );
//! [4]
//! [5]
QString url = http://qtsoftware.com
Q3Url::encode( url );
// url is now "http%3A//www%20trolltech%20com"
//! [5]
//! [6]
QString url = "http%3A//www%20trolltech%20com"
Q3Url::decode( url );
// url is now "http://qtsoftware.com"
//! [6]

37
doc/codesnippets/doc/src/snippets/code/src_qt3support_network_q3urloperator.cpp
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@ -1,37 +0,0 @@
//! [0]
Q3UrlOperator *op = new Q3UrlOperator();
op->copy( QString("ftp://ftp.trolltech.com/qt/source/qt-2.1.0.tar.gz"),
"file:///tmp" );
//! [0]
//! [1]
Q3UrlOperator op( "http://www.whatever.org/cgi-bin/search.pl?cmd=Hello" );
op.get();
//! [1]
//! [2]
Q3UrlOperator op( "ftp://ftp.whatever.org/pub" );
// do some other stuff like op.listChildren() or op.mkdir( "new_dir" )
op.get( "a_file.txt" );
//! [2]
//! [3]
Q3UrlOperator op( "http://www.whatever.org/cgi-bin" );
op.get( "search.pl?cmd=Hello" ); // WRONG!
//! [3]
//! [4]
Q3UrlOperator op( "ftp://ftp.whatever.com/home/me/filename.dat" );
op.put( data );
//! [4]
//! [5]
Q3UrlOperator op( "ftp://ftp.whatever.com/home/me" );
// do some other stuff like op.listChildren() or op.mkdir( "new_dir" )
op.put( data, "filename.dat" );
//! [5]

40
doc/codesnippets/doc/src/snippets/code/src_qt3support_other_q3accel.cpp
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@ -1,40 +0,0 @@
//! [0]
QPushButton p("&Exit", parent); // automatic shortcut Alt+E
Q3PopupMenu *fileMenu = new fileMenu(parent);
fileMenu->insertItem("Undo", parent, SLOT(undo()),
Qt::CTRL + Qt::Key_Z);
//! [0]
//! [1]
accelerator->insertItem(QKeySequence("M"));
//! [1]
//! [2]
Q3Accel *a = new Q3Accel(myWindow);
a->connectItem(a->insertItem(Qt::CTRL + Qt::Key_P),
myWindow, SLOT(printDoc()));
//! [2]
//! [3]
Q3Accel *a = new Q3Accel(myWindow); // create accels for myWindow
a->insertItem(CTRL + Key_P, 200); // Ctrl+P, e.g. to print document
a->insertItem(ALT + Key_X, 201); // Alt+X, e.g. to quit
a->insertItem(UNICODE_ACCEL + 'q', 202); // Unicode 'q', e.g. to quit
a->insertItem(Key_D); // gets a unique negative id < -1
a->insertItem(CTRL + SHIFT + Key_P); // gets a unique negative id < -1
//! [3]
//! [4]
a->connectItem(201, mainView, SLOT(quit()));
//! [4]
//! [5]
Q3PopupMenu *file = new Q3PopupMenu(this);
file->insertItem(p1, tr("&Open..."), this, SLOT(open()),
Q3Accel::stringToKey(tr("Ctrl+O", "File|Open")));
//! [5]

32
doc/codesnippets/doc/src/snippets/code/src_qt3support_other_q3mimefactory.cpp
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@ -1,32 +0,0 @@
//! [0]
static const char* myimage_data[]={
"...",
...
"..."};
//! [0]
//! [1]
Q3MimeSourceFactory::defaultFactory()->setImage("myimage", QImage(myimage_data));
//! [1]
//! [2]
QLabel* label = new QLabel(
"Rich text with embedded image:<img source=\"myimage\">"
"Isn't that <em>cute</em>?");
//! [2]
//! [3]
delete label;
Q3MimeSourceFactory::defaultFactory()->setData("myimage", 0);
//! [3]
//! [4]
setExtensionType("html", "text/html;charset=iso8859-1");
setExtensionType("htm", "text/html;charset=iso8859-1");
setExtensionType("txt", "text/plain");
setExtensionType("xml", "text/xml;charset=UTF-8");
//! [4]

8
doc/codesnippets/doc/src/snippets/code/src_qt3support_other_q3process.cpp
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@ -1,8 +0,0 @@
//! [0]
QStringList list = myProcess.arguments();
QStringList::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [0]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_other_q3process_unix.cpp
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@ -1,4 +0,0 @@
//! [0]
process->tryTerminate();
QTimer::singleShot( 5000, process, SLOT(kill()) );
//! [0]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_painting_q3paintdevicemetrics.cpp
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@ -1,4 +0,0 @@
//! [0]
Q3PaintDeviceMetrics pdm(myWidget);
double aspect = (double)pdm.widthMM() / (double)pdm.heightMM();
//! [0]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_painting_q3painter.cpp
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@ -1,4 +0,0 @@
//! [0]
QPainter p(myWidget);
p.drawArc(QRect(10,10, 70,100), 100*16, 160*16); // draws a "(" arc
//! [0]

14
doc/codesnippets/doc/src/snippets/code/src_qt3support_painting_q3picture.cpp
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@ -1,14 +0,0 @@
//! [0]
Q3Picture picture;
picture.load("drawing.svg", SVG);
//! [0]
//! [1]
Q3Picture picture;
QPainter painter;
painter.begin(&picture); // paint in picture
...
painter.end(); // painting done
picture.save("drawing.svg", SVG); // save picture
//! [1]

8
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3databrowser.cpp
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@ -1,8 +0,0 @@
//! [0]
QStringList list = myDataBrowser.sort();
QStringList::Iterator it = list.begin();
while(it != list.end()) {
myProcessing(*it);
++it;
}
//! [0]

8
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3datatable.cpp
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@ -1,8 +0,0 @@
//! [0]
QStringList list = myDataTable.sort();
QStringList::Iterator it = list.begin();
while( it != list.end() ) {
myProcessing( *it );
++it;
}
//! [0]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3dataview.cpp
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@ -1,4 +0,0 @@
//! [0]
myView.setRecord(record);
myView.readFields();
//! [0]

26
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3sqlform.cpp
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@ -1,26 +0,0 @@
//! [0]
QLineEdit myEditor(this);
Q3SqlForm myForm(this);
Q3SqlCursor myCursor("mytable");
// Execute a query to make the cursor valid
myCursor.select();
// Move the cursor to a valid record (the first record)
myCursor.next();
// Set the form's record pointer to the cursor's edit buffer (which
// contains the current record's values)
myForm.setRecord(myCursor.primeUpdate());
// Insert a field into the form that uses myEditor to edit the
// field 'somefield' in 'mytable'
myForm.insert(&myEditor, "somefield");
// Update myEditor with the value from the mapped database field
myForm.readFields();
...
// Let the user edit the form
...
// Update the database
myForm.writeFields(); // Update the cursor's edit buffer from the form
myCursor.update(); // Update the database from the cursor's buffer
//! [0]

11
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3sqlmanager_p.cpp
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@ -1,11 +0,0 @@
//! [0]
Q3SqlCursor* myCursor = myManager.cursor();
...
QSqlRecord* buf = myCursor->primeUpdate();
buf->setValue("name", "Ola");
buf->setValue("city", "Oslo");
...
myCursor->update(); // update current record
myCursor->select(); // refresh the cursor
myManager.findBuffer(myCursor->primaryIndex()); // go to the updated record
//! [0]

35
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3sqlpropertymap.cpp
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@ -1,35 +0,0 @@
//! [0]
Q3SqlPropertyMap *myMap = new Q3SqlPropertyMap();
Q3SqlForm *myForm = new Q3SqlForm(this);
MyEditor myEditor(this);
// Set the Q3SqlForm's record buffer to the update buffer of
// a pre-existing Q3SqlCursor called 'cur'.
myForm->setRecord(cur->primeUpdate());
// Install the customized map
myMap->insert("MyEditor", "content");
myForm->installPropertyMap(myMap); // myForm now owns myMap
...
// Insert a field into the form that uses a myEditor to edit the
// field 'somefield'
myForm->insert(&myEditor, "somefield");
// Update myEditor with the value from the mapped database field
myForm->readFields();
...
// Let the user edit the form
...
// Update the database fields with the values in the form
myForm->writeFields();
...
//! [0]
//! [1]
Q3SqlPropertyMap *myMap = new Q3SqlPropertyMap;
myMap->insert("MyEditor", "content");
Q3SqlPropertyMap::installDefaultMap(myMap);
...
//! [1]

11
doc/codesnippets/doc/src/snippets/code/src_qt3support_sql_q3sqlselectcursor.cpp
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@ -1,11 +0,0 @@
//! [0]
...
Q3SqlSelectCursor* cur = new Q3SqlSelectCursor("SELECT id, firstname, lastname FROM author");
Q3DataTable* table = new Q3DataTable(this);
table->setSqlCursor(cur, true, true);
table->refresh();
...
cur->exec("SELECT * FROM books");
table->refresh();
...
//! [0]

3
doc/codesnippets/doc/src/snippets/code/src_qt3support_text_q3simplerichtext.cpp
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@ -1,3 +0,0 @@
//! [0]
Q3SimpleRichText myrichtext(contents, mywidget->font());
//! [0]

3
doc/codesnippets/doc/src/snippets/code/src_qt3support_text_q3textbrowser.cpp
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@ -1,3 +0,0 @@
//! [0]
mimeSourceFactory()->setExtensionType("qml", "text/utf8");
//! [0]

31
doc/codesnippets/doc/src/snippets/code/src_qt3support_text_q3textedit.cpp
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@ -1,31 +0,0 @@
//! [0]
QFile file(fileName); // Read the text from a file
if (file.open(IO_ReadOnly)) {
QTextStream stream(&file);
textEdit->setText(stream.read());
}
QFile file(fileName); // Write the text to a file
if (file.open(IO_WriteOnly)) {
QTextStream stream(&file);
stream << textEdit->text();
textEdit->setModified(false);
}
//! [0]
//! [1]
This is <font color=red>red</font> while <b>this</b> is <font color=blue>blue</font>.
<font color=green><font color=yellow>Yellow,</font> and <u>green</u>.
//! [1]
//! [2]
Q3TextEdit * log = new Q3TextEdit(this);
log->setTextFormat(Qt::LogText);
Q3StyleSheetItem * item = new Q3StyleSheetItem(log->styleSheet(), "mytag");
item->setColor("red");
item->setFontWeight(QFont::Bold);
item->setFontUnderline(true);
log->append("This is a <mytag>custom tag</mytag>!");
//! [2]

29
doc/codesnippets/doc/src/snippets/code/src_qt3support_text_q3textstream.cpp
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@ -1,29 +0,0 @@
//! [0]
QString str;
Q3TextStream ts( &str, IO_WriteOnly );
ts << "pi = " << 3.14; // str == "pi = 3.14"
//! [0]
//! [1]
QString str = "pi = 3.14";
Q3TextStream ts( &str, IO_WriteOnly );
ts << "2+2 = " << 2+2; // str == "2+2 = 414"
//! [1]
//! [2]
QByteArray array;
Q3TextStream ts( array, IO_WriteOnly );
ts << "pi = " << 3.14 << '\0'; // array == "pi = 3.14"
//! [2]
//! [3]
QByteArray array;
QBuffer buf( array );
buf.open( IO_WriteOnly );
Q3TextStream ts( &buf );
ts << "pi = " << 3.14 << '\0'; // array == "pi = 3.14"
buf.close();
//! [3]

40
doc/codesnippets/doc/src/snippets/code/src_qt3support_tools_q3cstring.cpp
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@ -1,40 +0,0 @@
//! [0]
Q3CString str("helloworld", 6); // assigns "hello" to str
//! [0]
//! [1]
Q3CString a; // a.data() == 0, a.size() == 0, a.length() == 0
Q3CString b == ""; // b.data() == "", b.size() == 1, b.length() == 0
a.isNull(); // true because a.data() == 0
a.isEmpty(); // true because a.length() == 0
b.isNull(); // false because b.data() == ""
b.isEmpty(); // true because b.length() == 0
//! [1]
//! [2]
Q3CString s = "truncate this string";
s.truncate(5); // s == "trunc"
//! [2]
//! [3]
Q3CString s;
s.sprintf("%d - %s", 1, "first"); // result < 256 chars
Q3CString big(25000); // very long string
big.sprintf("%d - %s", 2, longString); // result < 25000 chars
//! [3]
//! [4]
Q3CString s("apple");
Q3CString t = s.leftJustify(8, '.'); // t == "apple..."
//! [4]
//! [5]
Q3CString s("pie");
Q3CString t = s.rightJustify(8, '.'); // t == ".....pie"
//! [5]

58
doc/codesnippets/doc/src/snippets/code/src_qt3support_tools_q3deepcopy.cpp
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@ -1,58 +0,0 @@
//! [0]
// all 5 strings share the same data
QString s1 = "abcd";
QString s2 = s1;
QString s3 = s2;
QString s4 = s3;
QString s5 = s2;
//! [0]
//! [1]
// s1, s2 and s5 share the same data, neither s3 nor s4 are shared
QString s1 = "abcd";
QString s2 = s1;
Q3DeepCopy<QString> s3 = s2; // s3 is a deep copy of s2
QString s4 = s3; // s4 is a deep copy of s3
QString s5 = s2;
//! [1]
//! [2]
// s1, s2 and s5 share the same data, s3 and s4 share the same data
QString s1 = "abcd";
QString s2 = s1;
QString s3 = Q3DeepCopy<QString>( s2 ); // s3 is a deep copy of s2
QString s4 = s3; // s4 is a shallow copy of s3
QString s5 = s2;
//! [2]
//! [3]
Q3DeepCopy<QString> global_string; // global string data
QMutex global_mutex; // mutex to protext global_string
...
void setGlobalString( const QString &str )
{
global_mutex.lock();
global_string = str; // global_string is a deep copy of str
global_mutex.unlock();
}
...
void MyThread::run()
{
global_mutex.lock();
QString str = global_string; // str is a deep copy of global_string
global_mutex.unlock();
// process the string data
...
// update global_string
setGlobalString( str );
}
//! [3]

20
doc/codesnippets/doc/src/snippets/code/src_qt3support_tools_q3garray.cpp
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@ -1,20 +0,0 @@
//! [0]
static uchar bindata[] = { 231, 1, 44, ... };
QByteArray a;
a.setRawData(bindata, sizeof(bindata)); // a points to bindata
QDataStream s(a, IO_ReadOnly); // open on a's data
s >> <something>; // read raw bindata
s.close();
a.resetRawData(bindata, sizeof(bindata)); // finished
//! [0]
//! [1]
static uchar bindata[] = { 231, 1, 44, ... };
QByteArray a, b;
a.setRawData(bindata, sizeof(bindata)); // a points to bindata
a.resize(8); // will crash
b = a; // will crash
a[2] = 123; // might crash
// forget to resetRawData - will crash
//! [1]

38
doc/codesnippets/doc/src/snippets/code/src_qt3support_tools_q3signal.cpp
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@ -1,38 +0,0 @@
//! [0]
#include <q3signal.h>
class MyClass
{
public:
MyClass();
~MyClass();
void doSomething();
void connect(QObject *receiver, const char *member);
private:
Q3Signal *sig;
};
MyClass::MyClass()
{
sig = new Q3Signal;
}
MyClass::~MyClass()
{
delete sig;
}
void MyClass::doSomething()
{
// ... does something
sig->activate(); // emits the signal
}
void MyClass::connect(QObject *receiver, const char *member)
{
sig->connect(receiver, member);
}
//! [0]

15
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3combobox.cpp
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@ -1,15 +0,0 @@
//! [0]
Q3ComboBox *c = new Q3ComboBox(this, tr("read-only combobox"));
//! [0]
//! [1]
Q3ComboBox *c1 = new Q3ComboBox(false, this, tr("read-only combobox"));
Q3ComboBox *c2 = new Q3ComboBox(true, this, tr("editable combobox"));
//! [1]
//! [2]
static const char* items[] = { "red", "green", "blue", 0 };
combo->insertStrList( items );
//! [2]

28
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3datetimeedit.cpp
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@ -1,28 +0,0 @@
void wrapInFunction()
{
//! [0]
Q3DateEdit *dateEdit = new Q3DateEdit(QDate::currentDate(), this);
dateEdit->setRange(QDate::currentDate().addDays(-365),
QDate::currentDate().addDays( 365));
dateEdit->setOrder(Q3DateEdit::MDY);
dateEdit->setAutoAdvance(true);
//! [0]
//! [1]
QTime timeNow = QTime::currentTime();
Q3TimeEdit *timeEdit = new Q3TimeEdit(timeNow, this);
timeEdit->setRange(timeNow, timeNow.addSecs(60 * 60));
//! [1]
//! [2]
Q3DateTimeEdit *dateTimeEdit = new Q3DateTimeEdit(QDateTime::currentDateTime(), this);
dateTimeEdit->dateEdit()->setRange(QDateTime::currentDate(),
QDateTime::currentDate().addDays(7));
//! [2]
}

8
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3dockarea.cpp
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@ -1,8 +0,0 @@
//! [0]
ts << *myDockArea;
//! [0]
//! [1]
ts >> *myDockArea;
//! [1]

4
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3dockwindow.cpp
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@ -1,4 +0,0 @@
//! [0]
Q3ToolBar *fileTools = new Q3ToolBar(this, "File Actions");
moveDockWindow(fileTools, Left);
//! [0]

6
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3gridview.cpp
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@ -1,6 +0,0 @@
//! [0]
p->setClipRect(cellRect(), QPainter::CoordPainter);
//... your drawing code
p->setClipping(false);
//! [0]

6
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3header.cpp
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@ -1,6 +0,0 @@
//! [0]
// Allow resizing of all current and future sections
header->setResizeEnabled(true);
// Disable resizing of section 3, (the fourth section added)
header->setResizeEnabled(false, 3);
//! [0]

45
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3mainwindow.cpp
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@ -1,45 +0,0 @@
//! [0]
Q3MainWindow *mw = new Q3MainWindow;
QTextEdit *edit = new QTextEdit(mw, "editor");
edit->setFocus();
mw->setWindowTitle("Main Window");
mw->setCentralWidget(edit);
mw->show();
//! [0]
//! [1]
Q3ToolBar *tb = new Q3ToolBar(this);
addDockWindow(tb, tr("Menubar"), Top, false);
QMenuBar *mb = new QMenuBar(tb);
mb->setFrameStyle(QFrame::NoFrame);
tb->setStretchableWidget(mb);
setDockEnabled(tb, Left, false);
setDockEnabled(tb, Right, false);
//! [1]
//! [2]
QFile file(filename);
if (file.open(IO_WriteOnly)) {
QTextStream stream(&file);
stream << *mainWindow;
file.close();
}
//! [2]
//! [3]
QFile file(filename);
if (file.open(IO_ReadOnly)) {
QTextStream stream(&file);
stream >> *mainWindow;
file.close();
}
//! [3]
//! [4]
Q3PopupMenu * help = new Q3PopupMenu(this);
help->insertItem("What's &This", this , SLOT(enterWhatsThis()), Qt::SHIFT+Qt::Key_F1);
//! [4]

61
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3scrollview.cpp
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@ -1,61 +0,0 @@
//! [0]
Q3ScrollView* sv = new Q3ScrollView(...);
QWidget *widget = new QWidget(sv->viewport());
QVBoxLayout *layout = new QVBoxLayout(widget);
addChild(widget);
//! [0]
//! [1]
QLabel* child1 = new QLabel("CHILD", widget);
QLabel* child2 = new QLabel("CHILD", widget);
QLabel* child3 = new QLabel("CHILD", widget);
layout->addWidget(child1);
layout->addWidget(child2);
layout->addWidget(child3);
...
//! [1]
//! [2]
Q3ScrollView* sv = new Q3ScrollView(...);
QLabel* child1 = new QLabel("CHILD", sv->viewport());
sv->addChild(child1);
QLabel* child2 = new QLabel("CHILD", sv->viewport());
sv->addChild(child2);
QLabel* child3 = new QLabel("CHILD", sv->viewport());
sv->addChild(child3);
//! [2]
//! [3]
Q3ScrollView* sv = new Q3ScrollView(...);
sv->enableClipper(true);
QLabel* child1 = new QLabel("CHILD", sv->viewport());
sv->addChild(child1);
QLabel* child2 = new QLabel("CHILD", sv->viewport());
sv->addChild(child2);
QLabel* child3 = new QLabel("CHILD", sv->viewport());
sv->addChild(child3);
//! [3]
//! [4]
{
// Fill a 40000 by 50000 rectangle at (100000,150000)
// Calculate the coordinates...
int x1 = 100000, y1 = 150000;
int x2 = x1+40000-1, y2 = y1+50000-1;
// Clip the coordinates so X/Windows will not have problems...
if (x1 < clipx) x1=clipx;
if (y1 < clipy) y1=clipy;
if (x2 > clipx+clipw-1) x2=clipx+clipw-1;
if (y2 > clipy+cliph-1) y2=clipy+cliph-1;
// Paint using the small coordinates...
if (x2 >= x1 && y2 >= y1)
p->fillRect(x1, y1, x2-x1+1, y2-y1+1, red);
}
//! [4]

3
doc/codesnippets/doc/src/snippets/code/src_qt3support_widgets_q3whatsthis.cpp
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//! [0]
(void)Q3WhatsThis::whatsThisButton( my_help_tool_bar );
//! [0]