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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:34:13 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:34:13 (GMT)
commit67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch)
tree1dbf50b3dff8d5ca7e9344733968c72704eb15ff /src/gui/dialogs/qwizard.cpp
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Long live Qt!
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwizard.h"
+
+#ifndef QT_NO_WIZARD
+
+#include "qabstractspinbox.h"
+#include "qalgorithms.h"
+#include "qapplication.h"
+#include "qboxlayout.h"
+#include "qlayoutitem.h"
+#include "qdesktopwidget.h"
+#include "qevent.h"
+#include "qframe.h"
+#include "qlabel.h"
+#include "qlineedit.h"
+#include "qpainter.h"
+#include "qpushbutton.h"
+#include "qset.h"
+#include "qstyle.h"
+#include "qvarlengtharray.h"
+#if defined(Q_WS_MAC)
+#include "private/qt_mac_p.h"
+#include "qlibrary.h"
+#elif !defined(QT_NO_STYLE_WINDOWSVISTA)
+#include "qwizard_win_p.h"
+#include "qtimer.h"
+#endif
+
+#include "private/qdialog_p.h"
+#include <qdebug.h>
+
+#ifdef Q_OS_WINCE
+extern bool qt_wince_is_mobile(); //defined in qguifunctions_wce.cpp
+#endif
+
+#include <string.h> // for memset()
+
+QT_BEGIN_NAMESPACE
+
+// These fudge terms were needed a few places to obtain pixel-perfect results
+const int GapBetweenLogoAndRightEdge = 5;
+const int ModernHeaderTopMargin = 2;
+const int ClassicHMargin = 4;
+const int MacButtonTopMargin = 13;
+const int MacLayoutLeftMargin = 20;
+const int MacLayoutTopMargin = 14;
+const int MacLayoutRightMargin = 20;
+const int MacLayoutBottomMargin = 17;
+
+static void changeSpacerSize(QLayout *layout, int index, int width, int height)
+{
+ QSpacerItem *spacer = layout->itemAt(index)->spacerItem();
+ if (!spacer)
+ return;
+ spacer->changeSize(width, height);
+}
+
+static QWidget *iWantTheFocus(QWidget *ancestor)
+{
+ const int MaxIterations = 100;
+
+ QWidget *candidate = ancestor;
+ for (int i = 0; i < MaxIterations; ++i) {
+ candidate = candidate->nextInFocusChain();
+ if (!candidate)
+ break;
+
+ if (candidate->focusPolicy() & Qt::TabFocus) {
+ if (candidate != ancestor && ancestor->isAncestorOf(candidate))
+ return candidate;
+ }
+ }
+ return 0;
+}
+
+static bool objectInheritsXAndXIsCloserThanY(const QObject *object, const QByteArray &classX,
+ const QByteArray &classY)
+{
+ const QMetaObject *metaObject = object->metaObject();
+ while (metaObject) {
+ if (metaObject->className() == classX)
+ return true;
+ if (metaObject->className() == classY)
+ return false;
+ metaObject = metaObject->superClass();
+ }
+ return false;
+}
+
+const int NFallbackDefaultProperties = 7;
+
+const struct {
+ const char *className;
+ const char *property;
+ const char *changedSignal;
+} fallbackProperties[NFallbackDefaultProperties] = {
+ // If you modify this list, make sure to update the documentation (and the auto test)
+ { "QAbstractButton", "checked", SIGNAL(toggled(bool)) },
+ { "QAbstractSlider", "value", SIGNAL(valueChanged(int)) },
+ { "QComboBox", "currentIndex", SIGNAL(currentIndexChanged(int)) },
+ { "QDateTimeEdit", "dateTime", SIGNAL(dateTimeChanged(QDateTime)) },
+ { "QLineEdit", "text", SIGNAL(textChanged(QString)) },
+ { "QListWidget", "currentRow", SIGNAL(currentRowChanged(int)) },
+ { "QSpinBox", "value", SIGNAL(valueChanged(int)) }
+};
+
+class QWizardDefaultProperty
+{
+public:
+ QByteArray className;
+ QByteArray property;
+ QByteArray changedSignal;
+
+ inline QWizardDefaultProperty() {}
+ inline QWizardDefaultProperty(const char *className, const char *property,
+ const char *changedSignal)
+ : className(className), property(property), changedSignal(changedSignal) {}
+};
+
+class QWizardField
+{
+public:
+ inline QWizardField() {}
+ QWizardField(QWizardPage *page, const QString &spec, QObject *object, const char *property,
+ const char *changedSignal);
+
+ void resolve(const QVector<QWizardDefaultProperty> &defaultPropertyTable);
+ void findProperty(const QWizardDefaultProperty *properties, int propertyCount);
+
+ QWizardPage *page;
+ QString name;
+ bool mandatory;
+ QObject *object;
+ QByteArray property;
+ QByteArray changedSignal;
+ QVariant initialValue;
+};
+
+QWizardField::QWizardField(QWizardPage *page, const QString &spec, QObject *object,
+ const char *property, const char *changedSignal)
+ : page(page), name(spec), mandatory(false), object(object), property(property),
+ changedSignal(changedSignal)
+{
+ if (name.endsWith(QLatin1Char('*'))) {
+ name.chop(1);
+ mandatory = true;
+ }
+}
+
+void QWizardField::resolve(const QVector<QWizardDefaultProperty> &defaultPropertyTable)
+{
+ if (property.isEmpty())
+ findProperty(defaultPropertyTable.constData(), defaultPropertyTable.count());
+ initialValue = object->property(property);
+}
+
+void QWizardField::findProperty(const QWizardDefaultProperty *properties, int propertyCount)
+{
+ QByteArray className;
+
+ for (int i = 0; i < propertyCount; ++i) {
+ if (objectInheritsXAndXIsCloserThanY(object, properties[i].className, className)) {
+ className = properties[i].className;
+ property = properties[i].property;
+ changedSignal = properties[i].changedSignal;
+ }
+ }
+}
+
+class QWizardLayoutInfo
+{
+public:
+ inline QWizardLayoutInfo()
+ : topLevelMarginLeft(-1), topLevelMarginRight(-1), topLevelMarginTop(-1),
+ topLevelMarginBottom(-1), childMarginLeft(-1), childMarginRight(-1),
+ childMarginTop(-1), childMarginBottom(-1), hspacing(-1), vspacing(-1),
+ wizStyle(QWizard::ClassicStyle), header(false), watermark(false), title(false),
+ subTitle(false), extension(false) {}
+
+ int topLevelMarginLeft;
+ int topLevelMarginRight;
+ int topLevelMarginTop;
+ int topLevelMarginBottom;
+ int childMarginLeft;
+ int childMarginRight;
+ int childMarginTop;
+ int childMarginBottom;
+ int hspacing;
+ int vspacing;
+ int buttonSpacing;
+ QWizard::WizardStyle wizStyle;
+ bool header;
+ bool watermark;
+ bool title;
+ bool subTitle;
+ bool extension;
+
+ bool operator==(const QWizardLayoutInfo &other);
+ inline bool operator!=(const QWizardLayoutInfo &other) { return !operator==(other); }
+};
+
+bool QWizardLayoutInfo::operator==(const QWizardLayoutInfo &other)
+{
+ return topLevelMarginLeft == other.topLevelMarginLeft
+ && topLevelMarginRight == other.topLevelMarginRight
+ && topLevelMarginTop == other.topLevelMarginTop
+ && topLevelMarginBottom == other.topLevelMarginBottom
+ && childMarginLeft == other.childMarginLeft
+ && childMarginRight == other.childMarginRight
+ && childMarginTop == other.childMarginTop
+ && childMarginBottom == other.childMarginBottom
+ && hspacing == other.hspacing
+ && vspacing == other.vspacing
+ && buttonSpacing == other.buttonSpacing
+ && wizStyle == other.wizStyle
+ && header == other.header
+ && watermark == other.watermark
+ && title == other.title
+ && subTitle == other.subTitle
+ && extension == other.extension;
+}
+
+class QWizardHeader : public QWidget
+{
+public:
+ enum RulerType { Ruler };
+
+ inline QWizardHeader(RulerType /* ruler */, QWidget *parent = 0)
+ : QWidget(parent) { setFixedHeight(2); }
+ QWizardHeader(QWidget *parent = 0);
+
+ void setup(const QWizardLayoutInfo &info, const QString &title,
+ const QString &subTitle, const QPixmap &logo, const QPixmap &banner,
+ Qt::TextFormat titleFormat, Qt::TextFormat subTitleFormat);
+
+protected:
+ void paintEvent(QPaintEvent *event);
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+private:
+ bool vistaDisabled() const;
+#endif
+private:
+ QLabel *titleLabel;
+ QLabel *subTitleLabel;
+ QLabel *logoLabel;
+ QGridLayout *layout;
+ QPixmap bannerPixmap;
+};
+
+QWizardHeader::QWizardHeader(QWidget *parent)
+ : QWidget(parent)
+{
+ setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+ setBackgroundRole(QPalette::Base);
+
+ titleLabel = new QLabel(this);
+ titleLabel->setBackgroundRole(QPalette::Base);
+
+ subTitleLabel = new QLabel(this);
+ subTitleLabel->setAlignment(Qt::AlignTop | Qt::AlignLeft);
+ subTitleLabel->setWordWrap(true);
+
+ logoLabel = new QLabel(this);
+
+ QFont font = titleLabel->font();
+ font.setBold(true);
+ titleLabel->setFont(font);
+
+ layout = new QGridLayout(this);
+ layout->setMargin(0);
+ layout->setSpacing(0);
+
+ layout->setRowMinimumHeight(3, 1);
+ layout->setRowStretch(4, 1);
+
+ layout->setColumnStretch(2, 1);
+ layout->setColumnMinimumWidth(4, 2 * GapBetweenLogoAndRightEdge);
+ layout->setColumnMinimumWidth(6, GapBetweenLogoAndRightEdge);
+
+ layout->addWidget(titleLabel, 2, 1, 1, 2);
+ layout->addWidget(subTitleLabel, 4, 2);
+ layout->addWidget(logoLabel, 1, 5, 5, 1);
+}
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+bool QWizardHeader::vistaDisabled() const
+{
+ bool styleDisabled = false;
+ QWizard *wiz = parentWidget() ? qobject_cast <QWizard *>(parentWidget()->parentWidget()) : 0;
+ if (wiz) {
+ // Designer dosen't support the Vista style for Wizards. This property is used to turn
+ // off the Vista style.
+ const QVariant v = wiz->property("_q_wizard_vista_off");
+ styleDisabled = v.isValid() && v.toBool();
+ }
+ return styleDisabled;
+}
+#endif
+
+void QWizardHeader::setup(const QWizardLayoutInfo &info, const QString &title,
+ const QString &subTitle, const QPixmap &logo, const QPixmap &banner,
+ Qt::TextFormat titleFormat, Qt::TextFormat subTitleFormat)
+{
+ bool modern = ((info.wizStyle == QWizard::ModernStyle)
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ || ((info.wizStyle == QWizard::AeroStyle)
+ && (QVistaHelper::vistaState() == QVistaHelper::Classic) || vistaDisabled())
+#endif
+ );
+
+ layout->setRowMinimumHeight(0, modern ? ModernHeaderTopMargin : 0);
+ layout->setRowMinimumHeight(1, modern ? info.topLevelMarginTop - ModernHeaderTopMargin - 1 : 0);
+ layout->setRowMinimumHeight(6, (modern ? 3 : GapBetweenLogoAndRightEdge) + 2);
+
+ int minColumnWidth0 = modern ? info.topLevelMarginLeft + info.topLevelMarginRight : 0;
+ int minColumnWidth1 = modern ? info.topLevelMarginLeft + info.topLevelMarginRight + 1
+ : info.topLevelMarginLeft + ClassicHMargin;
+ layout->setColumnMinimumWidth(0, minColumnWidth0);
+ layout->setColumnMinimumWidth(1, minColumnWidth1);
+
+ titleLabel->setTextFormat(titleFormat);
+ titleLabel->setText(title);
+ logoLabel->setPixmap(logo);
+
+ subTitleLabel->setTextFormat(subTitleFormat);
+ subTitleLabel->setText(QLatin1String("Pq\nPq"));
+ int desiredSubTitleHeight = subTitleLabel->sizeHint().height();
+ subTitleLabel->setText(subTitle);
+
+ if (modern) {
+ bannerPixmap = banner;
+ } else {
+ bannerPixmap = QPixmap();
+ }
+
+ if (bannerPixmap.isNull()) {
+ /*
+ There is no widthForHeight() function, so we simulate it with a loop.
+ */
+ int candidateSubTitleWidth = qMin(512, 2 * qApp->desktop()->width() / 3);
+ int delta = candidateSubTitleWidth >> 1;
+ while (delta > 0) {
+ if (subTitleLabel->heightForWidth(candidateSubTitleWidth - delta)
+ <= desiredSubTitleHeight)
+ candidateSubTitleWidth -= delta;
+ delta >>= 1;
+ }
+
+ subTitleLabel->setMinimumSize(candidateSubTitleWidth, desiredSubTitleHeight);
+
+ QSize size = layout->totalMinimumSize();
+ setMinimumSize(size);
+ setMaximumSize(QWIDGETSIZE_MAX, size.height());
+ } else {
+ subTitleLabel->setMinimumSize(0, 0);
+ setFixedSize(banner.size() + QSize(0, 2));
+ }
+ updateGeometry();
+}
+
+void QWizardHeader::paintEvent(QPaintEvent * /* event */)
+{
+ QPainter painter(this);
+ painter.drawPixmap(0, 0, bannerPixmap);
+
+ int x = width() - 2;
+ int y = height() - 2;
+ const QPalette &pal = palette();
+ painter.setPen(pal.mid().color());
+ painter.drawLine(0, y, x, y);
+ painter.setPen(pal.base().color());
+ painter.drawPoint(x + 1, y);
+ painter.drawLine(0, y + 1, x + 1, y + 1);
+}
+
+// We save one vtable by basing QWizardRuler on QWizardHeader
+class QWizardRuler : public QWizardHeader
+{
+public:
+ inline QWizardRuler(QWidget *parent = 0)
+ : QWizardHeader(Ruler, parent) {}
+};
+
+class QWizardPagePrivate : public QWidgetPrivate
+{
+ Q_DECLARE_PUBLIC(QWizardPage)
+
+public:
+ enum TriState { Tri_Unknown = -1, Tri_False, Tri_True };
+
+ inline QWizardPagePrivate()
+ : wizard(0), completeState(Tri_Unknown), explicitlyFinal(false), commit(false) {}
+
+ bool cachedIsComplete() const;
+ void _q_maybeEmitCompleteChanged();
+ void _q_updateCachedCompleteState();
+
+ QWizard *wizard;
+ QString title;
+ QString subTitle;
+ QPixmap pixmaps[QWizard::NPixmaps];
+ QVector<QWizardField> pendingFields;
+ mutable TriState completeState;
+ bool explicitlyFinal;
+ bool commit;
+ QMap<int, QString> buttonCustomTexts;
+};
+
+bool QWizardPagePrivate::cachedIsComplete() const
+{
+ Q_Q(const QWizardPage);
+ if (completeState == Tri_Unknown)
+ completeState = q->isComplete() ? Tri_True : Tri_False;
+ return completeState == Tri_True;
+}
+
+void QWizardPagePrivate::_q_maybeEmitCompleteChanged()
+{
+ Q_Q(QWizardPage);
+ TriState newState = q->isComplete() ? Tri_True : Tri_False;
+ if (newState != completeState)
+ emit q->completeChanged();
+}
+
+void QWizardPagePrivate::_q_updateCachedCompleteState()
+{
+ Q_Q(QWizardPage);
+ completeState = q->isComplete() ? Tri_True : Tri_False;
+}
+
+class QWizardAntiFlickerWidget : public QWidget
+{
+ QWizard *wizard;
+ QWizardPrivate *wizardPrivate;
+public:
+ QWizardAntiFlickerWidget(QWizard *wizard, QWizardPrivate *wizardPrivate)
+ : QWidget(wizard)
+ , wizard(wizard)
+ , wizardPrivate(wizardPrivate) {}
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+protected:
+ void paintEvent(QPaintEvent *);
+#endif
+};
+
+class QWizardPrivate : public QDialogPrivate
+{
+ Q_DECLARE_PUBLIC(QWizard)
+
+public:
+ typedef QMap<int, QWizardPage *> PageMap;
+
+ enum Direction {
+ Backward,
+ Forward
+ };
+
+ inline QWizardPrivate()
+ : start(-1)
+ , current(-1)
+ , canContinue(false)
+ , canFinish(false)
+ , disableUpdatesCount(0)
+ , opts(0)
+ , buttonsHaveCustomLayout(false)
+ , titleFmt(Qt::AutoText)
+ , subTitleFmt(Qt::AutoText)
+ , placeholderWidget1(0)
+ , placeholderWidget2(0)
+ , headerWidget(0)
+ , watermarkLabel(0)
+ , titleLabel(0)
+ , subTitleLabel(0)
+ , bottomRuler(0)
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ , vistaInitPending(false)
+ , vistaState(QVistaHelper::Dirty)
+ , vistaStateChanged(false)
+ , inHandleAeroStyleChange(false)
+#endif
+ , minimumWidth(0)
+ , minimumHeight(0)
+ , maximumWidth(QWIDGETSIZE_MAX)
+ , maximumHeight(QWIDGETSIZE_MAX)
+ {
+ for (int i = 0; i < QWizard::NButtons; ++i)
+ btns[i] = 0;
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA
+ && QSysInfo::WindowsVersion < QSysInfo::WV_NT_based)
+ vistaInitPending = true;
+#endif
+ }
+
+ void init();
+ void reset();
+ void cleanupPagesNotInHistory();
+ void addField(const QWizardField &field);
+ void removeFieldAt(int index);
+ void switchToPage(int newId, Direction direction);
+ QWizardLayoutInfo layoutInfoForCurrentPage();
+ void recreateLayout(const QWizardLayoutInfo &info);
+ void updateLayout();
+ void updateMinMaxSizes(const QWizardLayoutInfo &info);
+ void updateCurrentPage();
+ bool ensureButton(QWizard::WizardButton which) const;
+ void connectButton(QWizard::WizardButton which) const;
+ void updateButtonTexts();
+ void updateButtonLayout();
+ void setButtonLayout(const QWizard::WizardButton *array, int size);
+ bool buttonLayoutContains(QWizard::WizardButton which);
+ void updatePixmap(QWizard::WizardPixmap which);
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ bool vistaDisabled() const;
+ bool isVistaThemeEnabled(QVistaHelper::VistaState state) const;
+ void handleAeroStyleChange();
+#endif
+ bool isVistaThemeEnabled() const;
+ void disableUpdates();
+ void enableUpdates();
+ void _q_emitCustomButtonClicked();
+ void _q_updateButtonStates();
+ void setStyle(QStyle *style);
+#ifdef Q_WS_MAC
+ static QPixmap findDefaultBackgroundPixmap();
+#endif
+
+ PageMap pageMap;
+ QVector<QWizardField> fields;
+ QMap<QString, int> fieldIndexMap;
+ QVector<QWizardDefaultProperty> defaultPropertyTable;
+ QList<int> history;
+ QSet<int> initialized; // ### remove and move bit to QWizardPage?
+ int start;
+ int current;
+ bool canContinue;
+ bool canFinish;
+ QWizardLayoutInfo layoutInfo;
+ int disableUpdatesCount;
+
+ QWizard::WizardStyle wizStyle;
+ QWizard::WizardOptions opts;
+ QMap<int, QString> buttonCustomTexts;
+ bool buttonsHaveCustomLayout;
+ QList<QWizard::WizardButton> buttonsCustomLayout;
+ Qt::TextFormat titleFmt;
+ Qt::TextFormat subTitleFmt;
+ mutable QPixmap defaultPixmaps[QWizard::NPixmaps];
+
+ union {
+ // keep in sync with QWizard::WizardButton
+ mutable struct {
+ QAbstractButton *back;
+ QAbstractButton *next;
+ QAbstractButton *commit;
+ QAbstractButton *finish;
+ QAbstractButton *cancel;
+ QAbstractButton *help;
+ } btn;
+ mutable QAbstractButton *btns[QWizard::NButtons];
+ };
+ QWizardAntiFlickerWidget *antiFlickerWidget;
+ QWidget *placeholderWidget1;
+ QWidget *placeholderWidget2;
+ QWizardHeader *headerWidget;
+ QLabel *watermarkLabel;
+ QFrame *pageFrame;
+ QLabel *titleLabel;
+ QLabel *subTitleLabel;
+ QWizardRuler *bottomRuler;
+
+ QVBoxLayout *pageVBoxLayout;
+ QHBoxLayout *buttonLayout;
+ QGridLayout *mainLayout;
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ QVistaHelper *vistaHelper;
+ bool vistaInitPending;
+ QVistaHelper::VistaState vistaState;
+ bool vistaStateChanged;
+ bool inHandleAeroStyleChange;
+#endif
+ int minimumWidth;
+ int minimumHeight;
+ int maximumWidth;
+ int maximumHeight;
+};
+
+static QString buttonDefaultText(int wstyle, int which, const QWizardPrivate *wizardPrivate)
+{
+#if defined(QT_NO_STYLE_WINDOWSVISTA)
+ Q_UNUSED(wizardPrivate);
+#endif
+ const bool macStyle = (wstyle == QWizard::MacStyle);
+ switch (which) {
+ case QWizard::BackButton:
+ return macStyle ? QWizard::tr("Go Back") : QWizard::tr("< &Back");
+ case QWizard::NextButton:
+ if (macStyle)
+ return QWizard::tr("Continue");
+ else
+ return wizardPrivate->isVistaThemeEnabled()
+ ? QWizard::tr("&Next") : QWizard::tr("&Next >");
+ case QWizard::CommitButton:
+ return QWizard::tr("Commit");
+ case QWizard::FinishButton:
+ return macStyle ? QWizard::tr("Done") : QWizard::tr("&Finish");
+ case QWizard::CancelButton:
+ return QWizard::tr("Cancel");
+ case QWizard::HelpButton:
+ return macStyle ? QWizard::tr("Help") : QWizard::tr("&Help");
+ default:
+ return QString();
+ }
+}
+
+void QWizardPrivate::init()
+{
+ Q_Q(QWizard);
+
+ antiFlickerWidget = new QWizardAntiFlickerWidget(q, this);
+ wizStyle = QWizard::WizardStyle(q->style()->styleHint(QStyle::SH_WizardStyle, 0, q));
+ if (wizStyle == QWizard::MacStyle) {
+ opts = (QWizard::NoDefaultButton | QWizard::NoCancelButton);
+ } else if (wizStyle == QWizard::ModernStyle) {
+ opts = QWizard::HelpButtonOnRight;
+ }
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ vistaHelper = new QVistaHelper(q);
+#endif
+
+ // create these buttons right away; create the other buttons as necessary
+ ensureButton(QWizard::BackButton);
+ ensureButton(QWizard::NextButton);
+ ensureButton(QWizard::CommitButton);
+ ensureButton(QWizard::FinishButton);
+
+ pageFrame = new QFrame(antiFlickerWidget);
+ pageFrame->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+
+ pageVBoxLayout = new QVBoxLayout(pageFrame);
+ pageVBoxLayout->setSpacing(0);
+ pageVBoxLayout->addSpacing(0);
+ QSpacerItem *spacerItem = new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding);
+ pageVBoxLayout->addItem(spacerItem);
+
+ buttonLayout = new QHBoxLayout;
+ mainLayout = new QGridLayout(antiFlickerWidget);
+ mainLayout->setSizeConstraint(QLayout::SetNoConstraint);
+
+ updateButtonLayout();
+
+ for (int i = 0; i < NFallbackDefaultProperties; ++i)
+ defaultPropertyTable.append(QWizardDefaultProperty(fallbackProperties[i].className,
+ fallbackProperties[i].property,
+ fallbackProperties[i].changedSignal));
+}
+
+void QWizardPrivate::reset()
+{
+ Q_Q(QWizard);
+ if (current != -1) {
+ q->currentPage()->hide();
+ cleanupPagesNotInHistory();
+ for (int i = history.count() - 1; i >= 0; --i)
+ q->cleanupPage(history.at(i));
+ history.clear();
+ initialized.clear();
+
+ current = -1;
+ emit q->currentIdChanged(-1);
+ }
+}
+
+void QWizardPrivate::cleanupPagesNotInHistory()
+{
+ Q_Q(QWizard);
+
+ const QSet<int> original = initialized;
+ QSet<int>::const_iterator i = original.constBegin();
+ QSet<int>::const_iterator end = original.constEnd();
+
+ for (; i != end; ++i) {
+ if (!history.contains(*i)) {
+ q->cleanupPage(*i);
+ initialized.remove(*i);
+ }
+ }
+}
+
+void QWizardPrivate::addField(const QWizardField &field)
+{
+ QWizardField myField = field;
+ myField.resolve(defaultPropertyTable);
+
+ if (fieldIndexMap.contains(myField.name)) {
+ qWarning("QWizardPage::addField: Duplicate field '%s'", qPrintable(myField.name));
+ return;
+ }
+
+ fieldIndexMap.insert(myField.name, fields.count());
+ fields += myField;
+ if (myField.mandatory && !myField.changedSignal.isEmpty())
+ QObject::connect(myField.object, myField.changedSignal,
+ myField.page, SLOT(_q_maybeEmitCompleteChanged()));
+}
+
+void QWizardPrivate::removeFieldAt(int index)
+{
+ const QWizardField &field = fields.at(index);
+ fieldIndexMap.remove(field.name);
+ if (field.mandatory && !field.changedSignal.isEmpty())
+ QObject::disconnect(field.object, field.changedSignal,
+ field.page, SLOT(_q_maybeEmitCompleteChanged()));
+ fields.remove(index);
+}
+
+void QWizardPrivate::switchToPage(int newId, Direction direction)
+{
+ Q_Q(QWizard);
+
+ disableUpdates();
+
+ int oldId = current;
+ if (QWizardPage *oldPage = q->currentPage()) {
+ oldPage->hide();
+
+ if (direction == Backward) {
+ if (!(opts & QWizard::IndependentPages)) {
+ q->cleanupPage(oldId);
+ initialized.remove(oldId);
+ }
+ Q_ASSERT(history.last() == oldId);
+ history.removeLast();
+ Q_ASSERT(history.last() == newId);
+ }
+ }
+
+ current = newId;
+
+ QWizardPage *newPage = q->currentPage();
+ if (newPage) {
+ if (direction == Forward) {
+ if (!initialized.contains(current)) {
+ initialized.insert(current);
+ q->initializePage(current);
+ }
+ history.append(current);
+ }
+ newPage->show();
+ }
+
+ canContinue = (q->nextId() != -1);
+ canFinish = (newPage && newPage->isFinalPage());
+
+ _q_updateButtonStates();
+ updateButtonTexts();
+
+ const QWizard::WizardButton nextOrCommit =
+ newPage && newPage->isCommitPage() ? QWizard::CommitButton : QWizard::NextButton;
+ QAbstractButton *nextOrFinishButton =
+ btns[canContinue ? nextOrCommit : QWizard::FinishButton];
+ QWidget *candidate = 0;
+
+ /*
+ If there is no default button and the Next or Finish button
+ is enabled, give focus directly to it as a convenience to the
+ user. This is the normal case on Mac OS X.
+
+ Otherwise, give the focus to the new page's first child that
+ can handle it. If there is no such child, give the focus to
+ Next or Finish.
+ */
+ if ((opts & QWizard::NoDefaultButton) && nextOrFinishButton->isEnabled()) {
+ candidate = nextOrFinishButton;
+ } else if (newPage) {
+ candidate = iWantTheFocus(newPage);
+ }
+ if (!candidate)
+ candidate = nextOrFinishButton;
+ candidate->setFocus();
+
+ if (wizStyle == QWizard::MacStyle)
+ q->updateGeometry();
+
+ enableUpdates();
+ updateLayout();
+
+ emit q->currentIdChanged(current);
+}
+
+// keep in sync with QWizard::WizardButton
+static const char * const buttonSlots[QWizard::NStandardButtons] = {
+ SLOT(back()), SLOT(next()), SLOT(next()), SLOT(accept()), SLOT(reject()),
+ SIGNAL(helpRequested())
+};
+
+QWizardLayoutInfo QWizardPrivate::layoutInfoForCurrentPage()
+{
+ Q_Q(QWizard);
+ QStyle *style = q->style();
+
+ QWizardLayoutInfo info;
+
+ const int layoutHorizontalSpacing = style->pixelMetric(QStyle::PM_LayoutHorizontalSpacing);
+ info.topLevelMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, 0, q);
+ info.topLevelMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, 0, q);
+ info.topLevelMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, 0, q);
+ info.topLevelMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, 0, q);
+ info.childMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, 0, titleLabel);
+ info.childMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, 0, titleLabel);
+ info.childMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, 0, titleLabel);
+ info.childMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, 0, titleLabel);
+ info.hspacing = (layoutHorizontalSpacing == -1)
+ ? style->layoutSpacing(QSizePolicy::DefaultType, QSizePolicy::DefaultType, Qt::Horizontal)
+ : layoutHorizontalSpacing;
+ info.vspacing = style->pixelMetric(QStyle::PM_LayoutVerticalSpacing);
+ info.buttonSpacing = (layoutHorizontalSpacing == -1)
+ ? style->layoutSpacing(QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal)
+ : layoutHorizontalSpacing;
+
+ if (wizStyle == QWizard::MacStyle)
+ info.buttonSpacing = 12;
+
+ info.wizStyle = wizStyle;
+ if ((info.wizStyle == QWizard::AeroStyle)
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ && (QVistaHelper::vistaState() == QVistaHelper::Classic || vistaDisabled())
+#endif
+ )
+ info.wizStyle = QWizard::ModernStyle;
+
+ QString titleText;
+ QString subTitleText;
+ QPixmap backgroundPixmap;
+ QPixmap watermarkPixmap;
+
+ if (QWizardPage *page = q->currentPage()) {
+ titleText = page->title();
+ subTitleText = page->subTitle();
+ backgroundPixmap = page->pixmap(QWizard::BackgroundPixmap);
+ watermarkPixmap = page->pixmap(QWizard::WatermarkPixmap);
+ }
+
+ info.header = (info.wizStyle == QWizard::ClassicStyle || info.wizStyle == QWizard::ModernStyle)
+ && !(opts & QWizard::IgnoreSubTitles) && !subTitleText.isEmpty();
+ info.watermark = (info.wizStyle != QWizard::MacStyle) && (info.wizStyle != QWizard::AeroStyle)
+ && !watermarkPixmap.isNull();
+ info.title = !info.header && !titleText.isEmpty();
+ info.subTitle = !(opts & QWizard::IgnoreSubTitles) && !info.header && !subTitleText.isEmpty();
+ info.extension = info.watermark && (opts & QWizard::ExtendedWatermarkPixmap);
+
+ return info;
+}
+
+void QWizardPrivate::recreateLayout(const QWizardLayoutInfo &info)
+{
+ Q_Q(QWizard);
+
+ /*
+ Start by undoing the main layout.
+ */
+ for (int i = mainLayout->count() - 1; i >= 0; --i) {
+ QLayoutItem *item = mainLayout->takeAt(i);
+ if (item->layout()) {
+ item->layout()->setParent(0);
+ } else {
+ delete item;
+ }
+ }
+ for (int i = mainLayout->columnCount() - 1; i >= 0; --i)
+ mainLayout->setColumnMinimumWidth(i, 0);
+ for (int i = mainLayout->rowCount() - 1; i >= 0; --i)
+ mainLayout->setRowMinimumHeight(i, 0);
+
+ /*
+ Now, recreate it.
+ */
+
+ bool mac = (info.wizStyle == QWizard::MacStyle);
+ bool classic = (info.wizStyle == QWizard::ClassicStyle);
+ bool modern = (info.wizStyle == QWizard::ModernStyle);
+ bool aero = (info.wizStyle == QWizard::AeroStyle);
+ int deltaMarginLeft = info.topLevelMarginLeft - info.childMarginLeft;
+ int deltaMarginRight = info.topLevelMarginRight - info.childMarginRight;
+ int deltaMarginTop = info.topLevelMarginTop - info.childMarginTop;
+ int deltaMarginBottom = info.topLevelMarginBottom - info.childMarginBottom;
+ int deltaVSpacing = info.topLevelMarginBottom - info.vspacing;
+
+ int row = 0;
+ int numColumns;
+ if (mac) {
+ numColumns = 3;
+ } else if (info.watermark) {
+ numColumns = 2;
+ } else {
+ numColumns = 1;
+ }
+ int pageColumn = qMin(1, numColumns - 1);
+
+ if (mac) {
+ mainLayout->setMargin(0);
+ mainLayout->setSpacing(0);
+ buttonLayout->setContentsMargins(MacLayoutLeftMargin, MacButtonTopMargin, MacLayoutRightMargin, MacLayoutBottomMargin);
+ pageVBoxLayout->setMargin(7);
+ } else {
+ if (modern) {
+ mainLayout->setMargin(0);
+ mainLayout->setSpacing(0);
+ pageVBoxLayout->setContentsMargins(deltaMarginLeft, deltaMarginTop,
+ deltaMarginRight, deltaMarginBottom);
+ buttonLayout->setContentsMargins(info.topLevelMarginLeft, info.topLevelMarginTop,
+ info.topLevelMarginRight, info.topLevelMarginBottom);
+ } else {
+ mainLayout->setContentsMargins(info.topLevelMarginLeft, info.topLevelMarginTop,
+ info.topLevelMarginRight, info.topLevelMarginBottom);
+ mainLayout->setHorizontalSpacing(info.hspacing);
+ mainLayout->setVerticalSpacing(info.vspacing);
+ pageVBoxLayout->setContentsMargins(0, 0, 0, 0);
+ buttonLayout->setContentsMargins(0, 0, 0, 0);
+ }
+ }
+ buttonLayout->setSpacing(info.buttonSpacing);
+
+ if (info.header) {
+ if (!headerWidget)
+ headerWidget = new QWizardHeader(antiFlickerWidget);
+ headerWidget->setAutoFillBackground(modern);
+ mainLayout->addWidget(headerWidget, row++, 0, 1, numColumns);
+ }
+ if (headerWidget)
+ headerWidget->setVisible(info.header);
+
+ int watermarkStartRow = row;
+
+ if (mac)
+ mainLayout->setRowMinimumHeight(row++, 10);
+
+ if (info.title) {
+ if (!titleLabel) {
+ titleLabel = new QLabel(antiFlickerWidget);
+ titleLabel->setBackgroundRole(QPalette::Base);
+ titleLabel->setWordWrap(true);
+ }
+
+ QFont titleFont = q->font();
+ titleFont.setPointSize(titleFont.pointSize() + (mac ? 3 : 4));
+ titleFont.setBold(true);
+ titleLabel->setPalette(QPalette());
+
+ if (aero) {
+ // ### hardcoded for now:
+ titleFont = QFont(QLatin1String("Segoe UI"), 12);
+ QPalette pal(titleLabel->palette());
+ pal.setColor(QPalette::Text, "#003399");
+ titleLabel->setPalette(pal);
+ }
+
+ titleLabel->setFont(titleFont);
+ const int aeroTitleIndent = 25; // ### hardcoded for now - should be calculated somehow
+ if (aero)
+ titleLabel->setIndent(aeroTitleIndent);
+ else if (mac)
+ titleLabel->setIndent(2);
+ else if (classic)
+ titleLabel->setIndent(info.childMarginLeft);
+ else
+ titleLabel->setIndent(info.topLevelMarginLeft);
+ if (modern) {
+ if (!placeholderWidget1) {
+ placeholderWidget1 = new QWidget(antiFlickerWidget);
+ placeholderWidget1->setBackgroundRole(QPalette::Base);
+ }
+ placeholderWidget1->setFixedHeight(info.topLevelMarginLeft + 2);
+ mainLayout->addWidget(placeholderWidget1, row++, pageColumn);
+ }
+ mainLayout->addWidget(titleLabel, row++, pageColumn);
+ if (modern) {
+ if (!placeholderWidget2) {
+ placeholderWidget2 = new QWidget(antiFlickerWidget);
+ placeholderWidget2->setBackgroundRole(QPalette::Base);
+ }
+ placeholderWidget2->setFixedHeight(5);
+ mainLayout->addWidget(placeholderWidget2, row++, pageColumn);
+ }
+ if (mac)
+ mainLayout->setRowMinimumHeight(row++, 7);
+ }
+ if (placeholderWidget1)
+ placeholderWidget1->setVisible(info.title && modern);
+ if (placeholderWidget2)
+ placeholderWidget2->setVisible(info.title && modern);
+
+ if (info.subTitle) {
+ if (!subTitleLabel) {
+ subTitleLabel = new QLabel(pageFrame);
+ subTitleLabel->setWordWrap(true);
+
+ subTitleLabel->setContentsMargins(info.childMarginLeft , 0,
+ info.childMarginRight , 0);
+
+ pageVBoxLayout->insertWidget(1, subTitleLabel);
+ }
+ }
+
+ // ### try to replace with margin.
+ changeSpacerSize(pageVBoxLayout, 0, 0, info.subTitle ? info.childMarginLeft : 0);
+
+ int hMargin = mac ? 1 : 0;
+ int vMargin = hMargin;
+
+ pageFrame->setFrameStyle(mac ? (QFrame::Box | QFrame::Raised) : QFrame::NoFrame);
+ pageFrame->setLineWidth(0);
+ pageFrame->setMidLineWidth(hMargin);
+
+ if (info.header) {
+ if (modern) {
+ hMargin = info.topLevelMarginLeft;
+ vMargin = deltaMarginBottom;
+ } else if (classic) {
+ hMargin = deltaMarginLeft + ClassicHMargin;
+ vMargin = 0;
+ }
+ }
+
+ if (aero) {
+ int leftMargin = 18; // ### hardcoded for now - should be calculated somehow
+ int topMargin = vMargin;
+ int rightMargin = hMargin; // ### for now
+ int bottomMargin = vMargin;
+ pageFrame->setContentsMargins(leftMargin, topMargin, rightMargin, bottomMargin);
+ } else {
+ pageFrame->setContentsMargins(hMargin, vMargin, hMargin, vMargin);
+ }
+
+ if (info.watermark && !watermarkLabel) {
+ watermarkLabel = new QLabel(antiFlickerWidget);
+ watermarkLabel->setBackgroundRole(QPalette::Base);
+ watermarkLabel->setMinimumHeight(1);
+ watermarkLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);
+ watermarkLabel->setAlignment(Qt::AlignLeft | Qt::AlignTop);
+ }
+
+ //bool wasSemiTransparent = pageFrame->testAttribute(Qt::WA_SetPalette);
+ const bool wasSemiTransparent =
+ pageFrame->palette().brush(QPalette::Window).color().alpha() < 255
+ || pageFrame->palette().brush(QPalette::Base).color().alpha() < 255;
+ if (mac) {
+ if (!wasSemiTransparent) {
+ QPalette pal = pageFrame->palette();
+ pal.setBrush(QPalette::Window, QColor(255, 255, 255, 153));
+ // ### The next line is required to ensure visual semitransparency when
+ // ### switching from ModernStyle to MacStyle. See TAG1 below.
+ pal.setBrush(QPalette::Base, QColor(255, 255, 255, 153));
+ pageFrame->setPalette(pal);
+ pageFrame->setAutoFillBackground(true);
+ antiFlickerWidget->setAutoFillBackground(false);
+ }
+ } else {
+ if (wasSemiTransparent)
+ pageFrame->setPalette(QPalette());
+
+ bool baseBackground = (modern && !info.header); // ### TAG1
+ pageFrame->setBackgroundRole(baseBackground ? QPalette::Base : QPalette::Window);
+
+ if (titleLabel)
+ titleLabel->setAutoFillBackground(baseBackground);
+ pageFrame->setAutoFillBackground(baseBackground);
+ if (watermarkLabel)
+ watermarkLabel->setAutoFillBackground(baseBackground);
+ if (placeholderWidget1)
+ placeholderWidget1->setAutoFillBackground(baseBackground);
+ if (placeholderWidget2)
+ placeholderWidget2->setAutoFillBackground(baseBackground);
+
+ if (aero) {
+ QPalette pal = pageFrame->palette();
+ pal.setBrush(QPalette::Window, QColor(255, 255, 255));
+ pageFrame->setPalette(pal);
+ pageFrame->setAutoFillBackground(true);
+ pal = antiFlickerWidget->palette();
+ pal.setBrush(QPalette::Window, QColor(255, 255, 255));
+ antiFlickerWidget->setPalette(pal);
+ antiFlickerWidget->setAutoFillBackground(true);
+ }
+ }
+
+ mainLayout->addWidget(pageFrame, row++, pageColumn);
+
+ int watermarkEndRow = row;
+ if (classic)
+ mainLayout->setRowMinimumHeight(row++, deltaVSpacing);
+
+ if (aero) {
+ buttonLayout->setContentsMargins(9, 9, 9, 9);
+ mainLayout->setContentsMargins(0, 11, 0, 0);
+ }
+
+ int buttonStartColumn = info.extension ? 1 : 0;
+ int buttonNumColumns = info.extension ? 1 : numColumns;
+
+ if (classic || modern) {
+ if (!bottomRuler)
+ bottomRuler = new QWizardRuler(antiFlickerWidget);
+ mainLayout->addWidget(bottomRuler, row++, buttonStartColumn, 1, buttonNumColumns);
+ }
+
+ if (classic)
+ mainLayout->setRowMinimumHeight(row++, deltaVSpacing);
+
+ mainLayout->addLayout(buttonLayout, row++, buttonStartColumn, 1, buttonNumColumns);
+
+ if (info.watermark) {
+ if (info.extension)
+ watermarkEndRow = row;
+ mainLayout->addWidget(watermarkLabel, watermarkStartRow, 0,
+ watermarkEndRow - watermarkStartRow, 1);
+ }
+
+ mainLayout->setColumnMinimumWidth(0, mac && !info.watermark ? 181 : 0);
+ if (mac)
+ mainLayout->setColumnMinimumWidth(2, 21);
+
+ if (headerWidget)
+ headerWidget->setVisible(info.header);
+ if (titleLabel)
+ titleLabel->setVisible(info.title);
+ if (subTitleLabel)
+ subTitleLabel->setVisible(info.subTitle);
+ if (bottomRuler)
+ bottomRuler->setVisible(classic || modern);
+ if (watermarkLabel)
+ watermarkLabel->setVisible(info.watermark);
+
+ layoutInfo = info;
+}
+
+void QWizardPrivate::updateLayout()
+{
+ Q_Q(QWizard);
+
+ disableUpdates();
+
+ QWizardLayoutInfo info = layoutInfoForCurrentPage();
+ if (layoutInfo != info)
+ recreateLayout(info);
+ QWizardPage *page = q->currentPage();
+
+ // If the page can expand vertically, let it stretch "infinitely" more
+ // than the QSpacerItem at the bottom. Otherwise, let the QSpacerItem
+ // stretch "infinitely" more than the page. Change the bottom item's
+ // policy accordingly. The case that the page has no layout is basically
+ // for Designer, only.
+ if (page) {
+ bool expandPage = !page->layout();
+ if (!expandPage) {
+ const QLayoutItem *pageItem = pageVBoxLayout->itemAt(pageVBoxLayout->indexOf(page));
+ expandPage = pageItem->expandingDirections() & Qt::Vertical;
+ }
+ QSpacerItem *bottomSpacer = pageVBoxLayout->itemAt(pageVBoxLayout->count() - 1)->spacerItem();
+ Q_ASSERT(bottomSpacer);
+ bottomSpacer->changeSize(0, 0, QSizePolicy::Ignored, expandPage ? QSizePolicy::Ignored : QSizePolicy::MinimumExpanding);
+ pageVBoxLayout->invalidate();
+ }
+
+ if (info.header) {
+ Q_ASSERT(page);
+ headerWidget->setup(info, page->title(), page->subTitle(),
+ page->pixmap(QWizard::LogoPixmap), page->pixmap(QWizard::BannerPixmap),
+ titleFmt, subTitleFmt);
+ }
+
+ if (info.watermark) {
+ Q_ASSERT(page);
+ watermarkLabel->setPixmap(page->pixmap(QWizard::WatermarkPixmap));
+ }
+ if (info.title) {
+ Q_ASSERT(page);
+ titleLabel->setTextFormat(titleFmt);
+ titleLabel->setText(page->title());
+ }
+ if (info.subTitle) {
+ Q_ASSERT(page);
+ subTitleLabel->setTextFormat(subTitleFmt);
+ subTitleLabel->setText(page->subTitle());
+ }
+
+ enableUpdates();
+ updateMinMaxSizes(info);
+}
+
+void QWizardPrivate::updateMinMaxSizes(const QWizardLayoutInfo &info)
+{
+ Q_Q(QWizard);
+
+ int extraHeight = 0;
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (isVistaThemeEnabled())
+ extraHeight = vistaHelper->titleBarSize() + vistaHelper->topOffset();
+#endif
+ QSize minimumSize = mainLayout->totalMinimumSize() + QSize(0, extraHeight);
+ QSize maximumSize;
+#if defined(Q_WS_WIN)
+ if (QSysInfo::WindowsVersion > QSysInfo::WV_Me) // ### See Tasks 164078 and 161660
+#endif
+ maximumSize = mainLayout->totalMaximumSize();
+ if (info.header && headerWidget->maximumWidth() != QWIDGETSIZE_MAX) {
+ minimumSize.setWidth(headerWidget->maximumWidth());
+ maximumSize.setWidth(headerWidget->maximumWidth());
+ }
+ if (info.watermark) {
+ minimumSize.setHeight(mainLayout->totalSizeHint().height());
+ maximumSize.setHeight(mainLayout->totalSizeHint().height());
+ }
+ if (q->minimumWidth() == minimumWidth) {
+ minimumWidth = minimumSize.width();
+ q->setMinimumWidth(minimumWidth);
+ }
+ if (q->minimumHeight() == minimumHeight) {
+ minimumHeight = minimumSize.height();
+ q->setMinimumHeight(minimumHeight);
+ }
+ if (q->maximumWidth() == maximumWidth) {
+ maximumWidth = maximumSize.width();
+ q->setMaximumWidth(maximumWidth);
+ }
+ if (q->maximumHeight() == maximumHeight) {
+ maximumHeight = maximumSize.height();
+ q->setMaximumHeight(maximumHeight);
+ }
+}
+
+void QWizardPrivate::updateCurrentPage()
+{
+ Q_Q(QWizard);
+ if (q->currentPage()) {
+ canContinue = (q->nextId() != -1);
+ canFinish = q->currentPage()->isFinalPage();
+ } else {
+ canContinue = false;
+ canFinish = false;
+ }
+ _q_updateButtonStates();
+ updateButtonTexts();
+}
+
+bool QWizardPrivate::ensureButton(QWizard::WizardButton which) const
+{
+ Q_Q(const QWizard);
+ if (uint(which) >= QWizard::NButtons)
+ return false;
+
+ if (!btns[which]) {
+ QPushButton *pushButton = new QPushButton(antiFlickerWidget);
+ QStyle *style = q->style();
+ if (style != QApplication::style()) // Propagate style
+ pushButton->setStyle(style);
+ // Make navigation buttons detectable as passive interactor in designer
+ switch (which) {
+ case QWizard::CommitButton:
+ case QWizard::FinishButton:
+ case QWizard::CancelButton:
+ break;
+ default: {
+ QString objectName = QLatin1String("__qt__passive_wizardbutton");
+ objectName += QString::number(which);
+ pushButton->setObjectName(objectName);
+ }
+ break;
+ }
+#ifdef Q_WS_MAC
+ pushButton->setAutoDefault(false);
+#endif
+ pushButton->hide();
+#ifdef Q_CC_HPACC
+ const_cast<QWizardPrivate *>(this)->btns[which] = pushButton;
+#else
+ btns[which] = pushButton;
+#endif
+ if (which < QWizard::NStandardButtons)
+ pushButton->setText(buttonDefaultText(wizStyle, which, this));
+ connectButton(which);
+ }
+ return true;
+}
+
+void QWizardPrivate::connectButton(QWizard::WizardButton which) const
+{
+ Q_Q(const QWizard);
+ if (which < QWizard::NStandardButtons) {
+ QObject::connect(btns[which], SIGNAL(clicked()), q, buttonSlots[which]);
+ } else {
+ QObject::connect(btns[which], SIGNAL(clicked()), q, SLOT(_q_emitCustomButtonClicked()));
+ }
+}
+
+void QWizardPrivate::updateButtonTexts()
+{
+ Q_Q(QWizard);
+ for (int i = 0; i < QWizard::NButtons; ++i) {
+ if (btns[i]) {
+ if (q->currentPage() && (q->currentPage()->d_func()->buttonCustomTexts.contains(i)))
+ btns[i]->setText(q->currentPage()->d_func()->buttonCustomTexts.value(i));
+ else if (buttonCustomTexts.contains(i))
+ btns[i]->setText(buttonCustomTexts.value(i));
+ else if (i < QWizard::NStandardButtons)
+ btns[i]->setText(buttonDefaultText(wizStyle, i, this));
+ }
+ }
+}
+
+void QWizardPrivate::updateButtonLayout()
+{
+ if (buttonsHaveCustomLayout) {
+ QVarLengthArray<QWizard::WizardButton> array(buttonsCustomLayout.count());
+ for (int i = 0; i < buttonsCustomLayout.count(); ++i)
+ array[i] = buttonsCustomLayout.at(i);
+ setButtonLayout(array.constData(), array.count());
+ } else {
+ // Positions:
+ // Help Stretch Custom1 Custom2 Custom3 Cancel Back Next Commit Finish Cancel Help
+
+ const int ArraySize = 12;
+ QWizard::WizardButton array[ArraySize];
+ memset(array, -1, sizeof(array));
+ Q_ASSERT(array[0] == QWizard::NoButton);
+
+ if (opts & QWizard::HaveHelpButton) {
+ int i = (opts & QWizard::HelpButtonOnRight) ? 11 : 0;
+ array[i] = QWizard::HelpButton;
+ }
+ array[1] = QWizard::Stretch;
+ if (opts & QWizard::HaveCustomButton1)
+ array[2] = QWizard::CustomButton1;
+ if (opts & QWizard::HaveCustomButton2)
+ array[3] = QWizard::CustomButton2;
+ if (opts & QWizard::HaveCustomButton3)
+ array[4] = QWizard::CustomButton3;
+
+ if (!(opts & QWizard::NoCancelButton)) {
+ int i = (opts & QWizard::CancelButtonOnLeft) ? 5 : 10;
+ array[i] = QWizard::CancelButton;
+ }
+ array[6] = QWizard::BackButton;
+ array[7] = QWizard::NextButton;
+ array[8] = QWizard::CommitButton;
+ array[9] = QWizard::FinishButton;
+
+ setButtonLayout(array, ArraySize);
+ }
+}
+
+void QWizardPrivate::setButtonLayout(const QWizard::WizardButton *array, int size)
+{
+ QWidget *prev = pageFrame;
+
+ for (int i = buttonLayout->count() - 1; i >= 0; --i) {
+ QLayoutItem *item = buttonLayout->takeAt(i);
+ if (QWidget *widget = item->widget())
+ widget->hide();
+ delete item;
+ }
+
+ for (int i = 0; i < size; ++i) {
+ QWizard::WizardButton which = array[i];
+ if (which == QWizard::Stretch) {
+ buttonLayout->addStretch(1);
+ } else if (which != QWizard::NoButton) {
+ ensureButton(which);
+ buttonLayout->addWidget(btns[which]);
+
+ // Back, Next, Commit, and Finish are handled in _q_updateButtonStates()
+ if (which != QWizard::BackButton && which != QWizard::NextButton
+ && which != QWizard::CommitButton && which != QWizard::FinishButton)
+ btns[which]->show();
+
+ if (prev)
+ QWidget::setTabOrder(prev, btns[which]);
+ prev = btns[which];
+ }
+ }
+
+ _q_updateButtonStates();
+}
+
+bool QWizardPrivate::buttonLayoutContains(QWizard::WizardButton which)
+{
+ return !buttonsHaveCustomLayout || buttonsCustomLayout.contains(which);
+}
+
+void QWizardPrivate::updatePixmap(QWizard::WizardPixmap which)
+{
+ Q_Q(QWizard);
+ if (which == QWizard::BackgroundPixmap) {
+ if (wizStyle == QWizard::MacStyle) {
+ q->update();
+ q->updateGeometry();
+ }
+ } else {
+ updateLayout();
+ }
+}
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+bool QWizardPrivate::vistaDisabled() const
+{
+ Q_Q(const QWizard);
+ const QVariant v = q->property("_q_wizard_vista_off");
+ return v.isValid() && v.toBool();
+}
+
+bool QWizardPrivate::isVistaThemeEnabled(QVistaHelper::VistaState state) const
+{
+ return wizStyle == QWizard::AeroStyle
+ && QVistaHelper::vistaState() == state
+ && !vistaDisabled();
+}
+
+void QWizardPrivate::handleAeroStyleChange()
+{
+ Q_Q(QWizard);
+
+ if (inHandleAeroStyleChange)
+ return; // prevent recursion
+ inHandleAeroStyleChange = true;
+
+ vistaHelper->backButton()->disconnect();
+ q->removeEventFilter(vistaHelper);
+
+ if (isVistaThemeEnabled()) {
+ if (isVistaThemeEnabled(QVistaHelper::VistaAero)) {
+ vistaHelper->setDWMTitleBar(QVistaHelper::ExtendedTitleBar);
+ q->installEventFilter(vistaHelper);
+ q->setMouseTracking(true);
+ antiFlickerWidget->move(0, vistaHelper->titleBarSize() + vistaHelper->topOffset());
+ vistaHelper->backButton()->move(
+ 0, vistaHelper->topOffset() // ### should ideally work without the '+ 1'
+ - qMin(vistaHelper->topOffset(), vistaHelper->topPadding() + 1));
+ } else {
+ vistaHelper->setDWMTitleBar(QVistaHelper::NormalTitleBar);
+ q->setMouseTracking(true);
+ antiFlickerWidget->move(0, vistaHelper->topOffset());
+ vistaHelper->backButton()->move(0, -1); // ### should ideally work with (0, 0)
+ }
+ vistaHelper->setTitleBarIconAndCaptionVisible(false);
+ QObject::connect(
+ vistaHelper->backButton(), SIGNAL(clicked()), q, buttonSlots[QWizard::BackButton]);
+ vistaHelper->backButton()->show();
+ } else {
+ q->setMouseTracking(true); // ### original value possibly different
+ q->unsetCursor(); // ### ditto
+ antiFlickerWidget->move(0, 0);
+ vistaHelper->backButton()->hide();
+ vistaHelper->setTitleBarIconAndCaptionVisible(true);
+ }
+
+ _q_updateButtonStates();
+
+ if (q->isVisible())
+ vistaHelper->setWindowPosHack();
+
+ inHandleAeroStyleChange = false;
+}
+#endif
+
+bool QWizardPrivate::isVistaThemeEnabled() const
+{
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ return isVistaThemeEnabled(QVistaHelper::VistaAero)
+ || isVistaThemeEnabled(QVistaHelper::VistaBasic);
+#else
+ return false;
+#endif
+}
+
+void QWizardPrivate::disableUpdates()
+{
+ Q_Q(QWizard);
+ if (disableUpdatesCount++ == 0) {
+ q->setUpdatesEnabled(false);
+ antiFlickerWidget->hide();
+ }
+}
+
+void QWizardPrivate::enableUpdates()
+{
+ Q_Q(QWizard);
+ if (--disableUpdatesCount == 0) {
+ antiFlickerWidget->show();
+ q->setUpdatesEnabled(true);
+ }
+}
+
+void QWizardPrivate::_q_emitCustomButtonClicked()
+{
+ Q_Q(QWizard);
+ QObject *button = q->sender();
+ for (int i = QWizard::NStandardButtons; i < QWizard::NButtons; ++i) {
+ if (btns[i] == button) {
+ emit q->customButtonClicked(QWizard::WizardButton(i));
+ break;
+ }
+ }
+}
+
+void QWizardPrivate::_q_updateButtonStates()
+{
+ Q_Q(QWizard);
+
+ disableUpdates();
+
+ const QWizardPage *page = q->currentPage();
+ bool complete = page && page->isComplete();
+
+ btn.back->setEnabled(history.count() > 1
+ && !q->page(history.at(history.count() - 2))->isCommitPage()
+ && (!canFinish || !(opts & QWizard::DisabledBackButtonOnLastPage)));
+ btn.next->setEnabled(canContinue && complete);
+ btn.commit->setEnabled(canContinue && complete);
+ btn.finish->setEnabled(canFinish && complete);
+
+ const bool backButtonVisible = buttonLayoutContains(QWizard::BackButton)
+ && (history.count() > 1 || !(opts & QWizard::NoBackButtonOnStartPage))
+ && (canContinue || !(opts & QWizard::NoBackButtonOnLastPage));
+ bool commitPage = page && page->isCommitPage();
+ btn.back->setVisible(backButtonVisible);
+ btn.next->setVisible(buttonLayoutContains(QWizard::NextButton) && !commitPage
+ && (canContinue || (opts & QWizard::HaveNextButtonOnLastPage)));
+ btn.commit->setVisible(buttonLayoutContains(QWizard::CommitButton) && commitPage
+ && canContinue);
+ btn.finish->setVisible(buttonLayoutContains(QWizard::FinishButton)
+ && (canFinish || (opts & QWizard::HaveFinishButtonOnEarlyPages)));
+
+ bool useDefault = !(opts & QWizard::NoDefaultButton);
+ if (QPushButton *nextPush = qobject_cast<QPushButton *>(btn.next))
+ nextPush->setDefault(canContinue && useDefault && !commitPage);
+ if (QPushButton *commitPush = qobject_cast<QPushButton *>(btn.commit))
+ commitPush->setDefault(canContinue && useDefault && commitPage);
+ if (QPushButton *finishPush = qobject_cast<QPushButton *>(btn.finish))
+ finishPush->setDefault(!canContinue && useDefault);
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (isVistaThemeEnabled()) {
+ vistaHelper->backButton()->setEnabled(btn.back->isEnabled());
+ vistaHelper->backButton()->setVisible(backButtonVisible);
+ btn.back->setVisible(false);
+ }
+#endif
+
+ enableUpdates();
+}
+
+void QWizardPrivate::setStyle(QStyle *style)
+{
+ for (int i = 0; i < QWizard::NButtons; i++)
+ if (btns[i])
+ btns[i]->setStyle(style);
+ const PageMap::const_iterator pcend = pageMap.constEnd();
+ for (PageMap::const_iterator it = pageMap.constBegin(); it != pcend; ++it)
+ it.value()->setStyle(style);
+}
+
+#ifdef Q_WS_MAC
+
+#ifdef Q_WS_MAC32
+QT_BEGIN_INCLUDE_NAMESPACE
+#include <QuickTime/QuickTime.h>
+QT_END_INCLUDE_NAMESPACE
+typedef OSErr (*PtrQTNewDataReferenceFromCFURL)(CFURLRef, UInt32, Handle*, OSType*);
+typedef OSErr (*PtrGetGraphicsImporterForDataRefWithFlags)(Handle, OSType, ComponentInstance*, long);
+typedef ComponentResult (*PtrGraphicsImportSetFlags)(GraphicsImportComponent, long);
+typedef ComponentResult (*PtrGraphicsImportCreateCGImage)(GraphicsImportComponent, CGImageRef*, UInt32);
+
+static PtrQTNewDataReferenceFromCFURL ptrQTNewDataReferenceFromCFURL = 0;
+static PtrGetGraphicsImporterForDataRefWithFlags ptrGetGraphicsImporterForDataRefWithFlags = 0;
+static PtrGraphicsImportSetFlags ptrGraphicsImportSetFlags = 0;
+static PtrGraphicsImportCreateCGImage ptrGraphicsImportCreateCGImage = 0;
+
+static bool resolveQuickTimeSymbols()
+{
+ if (ptrQTNewDataReferenceFromCFURL == 0) {
+ QLibrary library(QLatin1String("/System/Library/Frameworks/QuickTime.framework/QuickTime"));
+ ptrQTNewDataReferenceFromCFURL = reinterpret_cast<PtrQTNewDataReferenceFromCFURL>(library.resolve("QTNewDataReferenceFromCFURL"));
+ ptrGetGraphicsImporterForDataRefWithFlags = reinterpret_cast<PtrGetGraphicsImporterForDataRefWithFlags>(library.resolve("GetGraphicsImporterForDataRefWithFlags"));
+ ptrGraphicsImportSetFlags = reinterpret_cast<PtrGraphicsImportSetFlags>(library.resolve("GraphicsImportSetFlags"));
+ ptrGraphicsImportCreateCGImage = reinterpret_cast<PtrGraphicsImportCreateCGImage>(library.resolve("GraphicsImportCreateCGImage"));
+ }
+
+ return ptrQTNewDataReferenceFromCFURL != 0 && ptrGetGraphicsImporterForDataRefWithFlags != 0
+ && ptrGraphicsImportSetFlags != 0 && ptrGraphicsImportCreateCGImage != 0;
+}
+
+
+static QPixmap quicktimeTiff(const CFURLRef url)
+{
+ if (!resolveQuickTimeSymbols())
+ return QPixmap();
+
+ QCFType <CGImageRef> imageRef = 0;
+ Handle dataRef;
+ OSType dataRefType;
+ GraphicsImportComponent gi;
+ ComponentResult result;
+ result = ptrQTNewDataReferenceFromCFURL(url, 0, &dataRef, &dataRefType);
+ if (dataRef != 0) {
+ OSStatus err = ptrGetGraphicsImporterForDataRefWithFlags(dataRef, dataRefType, &gi, 0);
+ if (err == noErr && gi) {
+ result = ptrGraphicsImportSetFlags(gi, (kGraphicsImporterDontDoGammaCorrection
+ + kGraphicsImporterDontUseColorMatching));
+ if (!result)
+ result = ptrGraphicsImportCreateCGImage(gi, &imageRef, 0);
+ if (result)
+ qWarning("Qt: Problem reading TIFF image %ld(%s:%d)", result, __FILE__, __LINE__);
+ DisposeHandle(dataRef);
+ CloseComponent(gi);
+ }
+ }
+
+ if (imageRef)
+ return QPixmap::fromMacCGImageRef(imageRef);
+ return QPixmap();
+}
+#endif // Q_WS_MAC32
+
+QPixmap QWizardPrivate::findDefaultBackgroundPixmap()
+{
+ QCFType<CFURLRef> url;
+ const int ExpectedImageWidth = 242;
+ const int ExpectedImageHeight = 414;
+ if (LSFindApplicationForInfo(kLSUnknownCreator, CFSTR("com.apple.KeyboardSetupAssistant"),
+ 0, 0, &url) == noErr) {
+ QCFType<CFBundleRef> bundle = CFBundleCreate(kCFAllocatorDefault, url);
+ if (bundle) {
+ url = CFBundleCopyResourceURL(bundle, CFSTR("Background"), CFSTR("tif"), 0);
+ if (url) {
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
+ if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
+ QCFType<CGImageSourceRef> imageSource = CGImageSourceCreateWithURL(url, 0);
+ QCFType<CGImageRef> image = CGImageSourceCreateImageAtIndex(imageSource, 0, 0);
+ if (image) {
+ int width = CGImageGetWidth(image);
+ int height = CGImageGetHeight(image);
+ if (width == ExpectedImageWidth && height == ExpectedImageHeight)
+ return QPixmap::fromMacCGImageRef(image);
+ }
+ } else
+#endif
+ {
+#ifdef Q_WS_MAC32
+ return quicktimeTiff(url);
+#endif
+ }
+ }
+ }
+ }
+ return QPixmap();
+
+}
+
+#endif
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+void QWizardAntiFlickerWidget::paintEvent(QPaintEvent *)
+{
+ if (wizardPrivate->isVistaThemeEnabled()) {
+ int leftMargin, topMargin, rightMargin, bottomMargin;
+ wizardPrivate->buttonLayout->getContentsMargins(
+ &leftMargin, &topMargin, &rightMargin, &bottomMargin);
+ const int buttonLayoutTop = wizardPrivate->buttonLayout->contentsRect().top() - topMargin;
+ QPainter painter(this);
+ const QBrush brush(QColor(240, 240, 240)); // ### hardcoded for now
+ painter.fillRect(0, buttonLayoutTop, width(), height() - buttonLayoutTop, brush);
+ painter.setPen(QPen(QBrush(QColor(223, 223, 223)), 0)); // ### hardcoded for now
+ painter.drawLine(0, buttonLayoutTop, width(), buttonLayoutTop);
+ if (wizardPrivate->isVistaThemeEnabled(QVistaHelper::VistaBasic)) {
+ if (window()->isActiveWindow())
+ painter.setPen(QPen(QBrush(QColor(169, 191, 214)), 0)); // ### hardcoded for now
+ else
+ painter.setPen(QPen(QBrush(QColor(182, 193, 204)), 0)); // ### hardcoded for now
+ painter.drawLine(0, 0, width(), 0);
+ }
+ }
+}
+#endif
+
+/*!
+ \class QWizard
+ \since 4.3
+ \brief The QWizard class provides a framework for wizards.
+
+ A wizard (also called an assistant on Mac OS X) is a special type
+ of input dialog that consists of a sequence of pages. A wizard's
+ purpose is to guide the user through a process step by step.
+ Wizards are useful for complex or infrequent tasks that users may
+ find difficult to learn.
+
+ QWizard inherits QDialog and represents a wizard. Each page is a
+ QWizardPage (a QWidget subclass). To create your own wizards, you
+ can use these classes directly, or you can subclass them for more
+ control.
+
+ Topics:
+
+ \tableofcontents
+
+ \section1 A Trivial Example
+
+ The following example illustrates how to create wizard pages and
+ add them to a wizard. For more advanced examples, see
+ \l{dialogs/classwizard}{Class Wizard} and \l{dialogs/licensewizard}{License
+ Wizard}.
+
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 1
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 3
+ \dots
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 4
+ \codeline
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 5
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 7
+ \dots
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 8
+ \codeline
+ \snippet examples/dialogs/trivialwizard/trivialwizard.cpp 10
+
+ \section1 Wizard Look and Feel
+
+ QWizard supports four wizard looks:
+
+ \list
+ \o ClassicStyle
+ \o ModernStyle
+ \o MacStyle
+ \o AeroStyle
+ \endlist
+
+ You can explicitly set the look to use using setWizardStyle()
+ (e.g., if you want the same look on all platforms).
+
+ \table
+ \header \o ClassicStyle
+ \o ModernStyle
+ \o MacStyle
+ \o AeroStyle
+ \row \o \inlineimage qtwizard-classic1.png
+ \o \inlineimage qtwizard-modern1.png
+ \o \inlineimage qtwizard-mac1.png
+ \o \inlineimage qtwizard-aero1.png
+ \row \o \inlineimage qtwizard-classic2.png
+ \o \inlineimage qtwizard-modern2.png
+ \o \inlineimage qtwizard-mac2.png
+ \o \inlineimage qtwizard-aero2.png
+ \endtable
+
+ Note: AeroStyle has effect only on a Windows Vista system with alpha compositing enabled.
+ ModernStyle is used as a fallback when this condition is not met.
+
+ In addition to the wizard style, there are several options that
+ control the look and feel of the wizard. These can be set using
+ setOption() or setOptions(). For example, HaveHelpButton makes
+ QWizard show a \gui Help button along with the other wizard
+ buttons.
+
+ You can even change the order of the wizard buttons to any
+ arbitrary order using setButtonLayout(), and you can add up to
+ three custom buttons (e.g., a \gui Print button) to the button
+ row. This is achieved by calling setButton() or setButtonText()
+ with CustomButton1, CustomButton2, or CustomButton3 to set up the
+ button, and by enabling the HaveCustomButton1, HaveCustomButton2,
+ or HaveCustomButton3 options. Whenever the user clicks a custom
+ button, customButtonClicked() is emitted. For example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 29
+
+ \section1 Elements of a Wizard Page
+
+ Wizards consist of a sequence of \l{QWizardPage}s. At any time,
+ only one page is shown. A page has the following attributes:
+
+ \list
+ \o A \l{QWizardPage::}{title}.
+ \o A \l{QWizardPage::}{subTitle}.
+ \o A set of pixmaps, which may or may not be honored, depending
+ on the wizard's style:
+ \list
+ \o WatermarkPixmap (used by ClassicStyle and ModernStyle)
+ \o BannerPixmap (used by ModernStyle)
+ \o LogoPixmap (used by ClassicStyle and ModernStyle)
+ \o BackgroundPixmap (used by MacStyle)
+ \endlist
+ \endlist
+
+ The diagram belows shows how QWizard renders these attributes,
+ assuming they are all present and ModernStyle is used:
+
+ \image qtwizard-nonmacpage.png
+
+ When a \l{QWizardPage::}{subTitle} is set, QWizard displays it
+ in a header, in which case it also uses the BannerPixmap and the
+ LogoPixmap to decorate the header. The WatermarkPixmap is
+ displayed on the left side, below the header. At the bottom,
+ there is a row of buttons allowing the user to navigate through
+ the pages.
+
+ The page itself (the \l{QWizardPage} widget) occupies the area
+ between the header, the watermark, and the button row. Typically,
+ the page is a QWizardPage on which a QGridLayout is installed,
+ with standard child widgets (\l{QLabel}s, \l{QLineEdit}s, etc.).
+
+ If the wizard's style is MacStyle, the page looks radically
+ different:
+
+ \image qtwizard-macpage.png
+
+ The watermark, banner, and logo pixmaps are ignored by the
+ MacStyle. If the BackgroundPixmap is set, it is used as the
+ background for the wizard; otherwise, a default "assistant" image
+ is used.
+
+ The title and subtitle are set by calling
+ QWizardPage::setTitle() and QWizardPage::setSubTitle() on the
+ individual pages. They may be plain text or HTML (see titleFormat
+ and subTitleFormat). The pixmaps can be set globally for the
+ entire wizard using setPixmap(), or on a per-page basis using
+ QWizardPage::setPixmap().
+
+ \target field mechanism
+ \section1 Registering and Using Fields
+
+ In many wizards, the contents of a page may affect the default
+ values of the fields of a later page. To make it easy to
+ communicate between pages, QWizard supports a "field" mechanism
+ that allows you to register a field (e.g., a QLineEdit) on a page
+ and to access its value from any page. It is also possible to
+ specify mandatory fields (i.e., fields that must be filled before
+ the user can advance to the next page).
+
+ To register a field, call QWizardPage::registerField() field.
+ For example:
+
+ \snippet examples/dialogs/classwizard/classwizard.cpp 8
+ \dots
+ \snippet examples/dialogs/classwizard/classwizard.cpp 10
+ \snippet examples/dialogs/classwizard/classwizard.cpp 11
+ \dots
+ \snippet examples/dialogs/classwizard/classwizard.cpp 13
+
+ The above code registers three fields, \c className, \c
+ baseClass, and \c qobjectMacro, which are associated with three
+ child widgets. The asterisk (\c *) next to \c className denotes a
+ mandatory field.
+
+ \target initialize page
+ The fields of any page are accessible from any other page. For
+ example:
+
+ \snippet examples/dialogs/classwizard/classwizard.cpp 17
+
+ Here, we call QWizardPage::field() to access the contents of the
+ \c className field (which was defined in the \c ClassInfoPage)
+ and use it to initialize the \c OuputFilePage. The field's
+ contents is returned as a QVariant.
+
+ When we create a field using QWizardPage::registerField(), we
+ pass a unique field name and a widget. We can also provide a Qt
+ property name and a "changed" signal (a signal that is emitted
+ when the property changes) as third and fourth arguments;
+ however, this is not necessary for the most common Qt widgets,
+ such as QLineEdit, QCheckBox, and QComboBox, because QWizard
+ knows which properties to look for.
+
+ \target mandatory fields
+
+ If an asterisk (\c *) is appended to the name when the property
+ is registered, the field is a \e{mandatory field}. When a page has
+ mandatory fields, the \gui Next and/or \gui Finish buttons are
+ enabled only when all mandatory fields are filled.
+
+ To consider a field "filled", QWizard simply checks that the
+ field's current value doesn't equal the original value (the value
+ it had when initializePage() was called). For QLineEdit and
+ QAbstractSpinBox subclasses, QWizard also checks that
+ \l{QLineEdit::hasAcceptableInput()}{hasAcceptableInput()} returns
+ true, to honor any validator or mask.
+
+ QWizard's mandatory field mechanism is provided for convenience.
+ A more powerful (but also more cumbersome) alternative is to
+ reimplement QWizardPage::isComplete() and to emit the
+ QWizardPage::completeChanged() signal whenever the page becomes
+ complete or incomplete.
+
+ The enabled/disabled state of the \gui Next and/or \gui Finish
+ buttons is one way to perform validation on the user input.
+ Another way is to reimplement validateCurrentPage() (or
+ QWizardPage::validatePage()) to perform some last-minute
+ validation (and show an error message if the user has entered
+ incomplete or invalid information). If the function returns true,
+ the next page is shown (or the wizard finishes); otherwise, the
+ current page stays up.
+
+ \section1 Creating Linear Wizards
+
+ Most wizards have a linear structure, with page 1 followed by
+ page 2 and so on until the last page. The \l{dialogs/classwizard}{Class
+ Wizard} example is such a wizard. With QWizard, linear wizards
+ are created by instantiating the \l{QWizardPage}s and inserting
+ them using addPage(). By default, the pages are shown in the
+ order in which they were added. For example:
+
+ \snippet examples/dialogs/classwizard/classwizard.cpp 0
+ \dots
+ \snippet examples/dialogs/classwizard/classwizard.cpp 2
+
+ When a page is about to be shown, QWizard calls initializePage()
+ (which in turn calls QWizardPage::initializePage()) to fill the
+ page with default values. By default, this function does nothing,
+ but it can be reimplemented to initialize the page's contents
+ based on other pages' fields (see the \l{initialize page}{example
+ above}).
+
+ If the user presses \gui Back, cleanupPage() is called (which in
+ turn calls QWizardPage::cleanupPage()). The default
+ implementation resets the page's fields to their original values
+ (the values they had before initializePage() was called). If you
+ want the \gui Back button to be non-destructive and keep the
+ values entered by the user, simply enable the IndependentPages
+ option.
+
+ \section1 Creating Non-Linear Wizards
+
+ Some wizards are more complex in that they allow different
+ traversal paths based on the information provided by the user.
+ The \l{dialogs/licensewizard}{License Wizard} example illustrates this.
+ It provides five wizard pages; depending on which options are
+ selected, the user can reach different pages.
+
+ \image licensewizard-flow.png
+
+ In complex wizards, pages are identified by IDs. These IDs are
+ typically defined using an enum. For example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.h 0
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.h 2
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.h 3
+
+ The pages are inserted using setPage(), which takes an ID and an
+ instance of QWizardPage (or of a subclass):
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 1
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 8
+
+ By default, the pages are shown in increasing ID order. To
+ provide a dynamic order that depends on the options chosen by the
+ user, we must reimplement QWizardPage::nextId(). For example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 18
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 23
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 24
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 25
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 26
+
+ It would also be possible to put all the logic in one place, in a
+ QWizard::nextId() reimplementation. For example:
+
+ \snippet doc/src/snippets/code/src_gui_dialogs_qwizard.cpp 0
+
+ To start at another page than the page with the lowest ID, call
+ setStartId().
+
+ To test whether a page has been visited or not, call
+ hasVisitedPage(). For example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 27
+
+ \sa QWizardPage, {Class Wizard Example}, {License Wizard Example}
+*/
+
+/*!
+ \enum QWizard::WizardButton
+
+ This enum specifies the buttons in a wizard.
+
+ \value BackButton The \gui Back button (\gui {Go Back} on Mac OS X)
+ \value NextButton The \gui Next button (\gui Continue on Mac OS X)
+ \value CommitButton The \gui Commit button
+ \value FinishButton The \gui Finish button (\gui Done on Mac OS X)
+ \value CancelButton The \gui Cancel button (see also NoCancelButton)
+ \value HelpButton The \gui Help button (see also HaveHelpButton)
+ \value CustomButton1 The first user-defined button (see also HaveCustomButton1)
+ \value CustomButton2 The second user-defined button (see also HaveCustomButton2)
+ \value CustomButton3 The third user-defined button (see also HaveCustomButton3)
+
+ The following value is only useful when calling setButtonLayout():
+
+ \value Stretch A horizontal stretch in the button layout
+
+ \omitvalue NoButton
+ \omitvalue NStandardButtons
+ \omitvalue NButtons
+
+ \sa setButton(), setButtonText(), setButtonLayout(), customButtonClicked()
+*/
+
+/*!
+ \enum QWizard::WizardPixmap
+
+ This enum specifies the pixmaps that can be associated with a page.
+
+ \value WatermarkPixmap The tall pixmap on the left side of a ClassicStyle or ModernStyle page
+ \value LogoPixmap The small pixmap on the right side of a ClassicStyle or ModernStyle page header
+ \value BannerPixmap The pixmap that occupies the background of a ModernStyle page header
+ \value BackgroundPixmap The pixmap that occupies the background of a MacStyle wizard
+
+ \omitvalue NPixmaps
+
+ \sa setPixmap(), QWizardPage::setPixmap(), {Elements of a Wizard Page}
+*/
+
+/*!
+ \enum QWizard::WizardStyle
+
+ This enum specifies the different looks supported by QWizard.
+
+ \value ClassicStyle Classic Windows look
+ \value ModernStyle Modern Windows look
+ \value MacStyle Mac OS X look
+ \value AeroStyle Windows Aero look
+
+ \omitvalue NStyles
+
+ \sa setWizardStyle(), WizardOption, {Wizard Look and Feel}
+*/
+
+/*!
+ \enum QWizard::WizardOption
+
+ This enum specifies various options that affect the look and feel
+ of a wizard.
+
+ \value IndependentPages The pages are independent of each other
+ (i.e., they don't derive values from each
+ other).
+ \value IgnoreSubTitles Don't show any subtitles, even if they are set.
+ \value ExtendedWatermarkPixmap Extend any WatermarkPixmap all the
+ way down to the window's edge.
+ \value NoDefaultButton Don't make the \gui Next or \gui Finish button the
+ dialog's \l{QPushButton::setDefault()}{default button}.
+ \value NoBackButtonOnStartPage Don't show the \gui Back button on the start page.
+ \value NoBackButtonOnLastPage Don't show the \gui Back button on the last page.
+ \value DisabledBackButtonOnLastPage Disable the \gui Back button on the last page.
+ \value HaveNextButtonOnLastPage Show the (disabled) \gui Next button on the last page.
+ \value HaveFinishButtonOnEarlyPages Show the (disabled) \gui Finish button on non-final pages.
+ \value NoCancelButton Don't show the \gui Cancel button.
+ \value CancelButtonOnLeft Put the \gui Cancel button on the left of \gui Back (rather than on
+ the right of \gui Finish or \gui Next).
+ \value HaveHelpButton Show the \gui Help button.
+ \value HelpButtonOnRight Put the \gui Help button on the far right of the button layout
+ (rather than on the far left).
+ \value HaveCustomButton1 Show the first user-defined button (CustomButton1).
+ \value HaveCustomButton2 Show the second user-defined button (CustomButton2).
+ \value HaveCustomButton3 Show the third user-defined button (CustomButton3).
+
+ \sa setOptions(), setOption(), testOption()
+*/
+
+/*!
+ Constructs a wizard with the given \a parent and window \a flags.
+
+ \sa parent(), windowFlags()
+*/
+QWizard::QWizard(QWidget *parent, Qt::WindowFlags flags)
+ : QDialog(*new QWizardPrivate, parent, flags)
+{
+ Q_D(QWizard);
+ d->init();
+#ifdef Q_OS_WINCE
+ if (!qt_wince_is_mobile())
+ setWindowFlags(windowFlags() & ~Qt::WindowOkButtonHint);
+#endif
+}
+
+/*!
+ Destroys the wizard and its pages, releasing any allocated resources.
+*/
+QWizard::~QWizard()
+{
+ Q_D(QWizard);
+ delete d->buttonLayout;
+}
+
+/*!
+ Adds the given \a page to the wizard, and returns the page's ID.
+
+ The ID is guaranteed to be larger than any other ID in the
+ QWizard so far.
+
+ \sa setPage(), page()
+*/
+int QWizard::addPage(QWizardPage *page)
+{
+ Q_D(QWizard);
+ int theid = 0;
+ if (!d->pageMap.isEmpty())
+ theid = (d->pageMap.constEnd() - 1).key() + 1;
+ setPage(theid, page);
+ return theid;
+}
+
+/*!
+ \fn void QWizard::setPage(int id, QWizardPage *page)
+
+ Adds the given \a page to the wizard with the given \a id.
+
+ \sa addPage(), page()
+*/
+void QWizard::setPage(int theid, QWizardPage *page)
+{
+ Q_D(QWizard);
+
+ if (!page) {
+ qWarning("QWizard::setPage: Cannot insert null page");
+ return;
+ }
+
+ if (theid == -1) {
+ qWarning("QWizard::setPage: Cannot insert page with ID -1");
+ return;
+ }
+
+ if (d->pageMap.contains(theid)) {
+ qWarning("QWizard::setPage: Page with duplicate ID %d ignored", theid);
+ return;
+ }
+
+ page->setParent(d->pageFrame);
+
+ QVector<QWizardField> &pendingFields = page->d_func()->pendingFields;
+ for (int i = 0; i < pendingFields.count(); ++i)
+ d->addField(pendingFields.at(i));
+ pendingFields.clear();
+
+ connect(page, SIGNAL(completeChanged()), this, SLOT(_q_updateButtonStates()));
+
+ d->pageMap.insert(theid, page);
+ page->d_func()->wizard = this;
+
+ int n = d->pageVBoxLayout->count();
+
+ // disable layout to prevent layout updates while adding
+ bool pageVBoxLayoutEnabled = d->pageVBoxLayout->isEnabled();
+ d->pageVBoxLayout->setEnabled(false);
+
+ d->pageVBoxLayout->insertWidget(n - 1, page);
+
+ // hide new page and reset layout to old status
+ page->hide();
+ d->pageVBoxLayout->setEnabled(pageVBoxLayoutEnabled);
+}
+
+/*!
+ Removes the page with the given \a id. cleanupPage() will be called if necessary.
+ \since 4.5
+ \sa addPage(), setPage()
+*/
+void QWizard::removePage(int id)
+{
+ Q_D(QWizard);
+
+ QWizardPage *removedPage = 0;
+
+ if (d->start == id)
+ d->start = -1;
+
+ if (!d->history.contains(id)) {
+ // Case 1: removing a page not in the history
+ removedPage = d->pageMap.take(id);
+ d->updateCurrentPage();
+ } else if (id != d->current) {
+ // Case 2: removing a page in the history before the current page
+ removedPage = d->pageMap.take(id);
+ d->history.removeOne(id);
+ d->_q_updateButtonStates();
+ } else if (d->history.count() == 1) {
+ // Case 3: removing the current page which is the first (and only) one in the history
+ d->reset();
+ removedPage = d->pageMap.take(id);
+ if (d->pageMap.isEmpty())
+ d->updateCurrentPage();
+ else
+ restart();
+ } else {
+ // Case 4: removing the current page which is not the first one in the history
+ back();
+ removedPage = d->pageMap.take(id);
+ d->updateCurrentPage();
+ }
+
+ if (removedPage) {
+ if (d->initialized.contains(id)) {
+ cleanupPage(id);
+ d->initialized.remove(id);
+ }
+
+ d->pageVBoxLayout->removeWidget(removedPage);
+
+ for (int i = d->fields.count() - 1; i >= 0; --i) {
+ if (d->fields.at(i).page == removedPage) {
+ removedPage->d_func()->pendingFields += d->fields.at(i);
+ d->removeFieldAt(i);
+ }
+ }
+ }
+}
+
+/*!
+ \fn QWizardPage *QWizard::page(int id) const
+
+ Returns the page with the given \a id, or 0 if there is no such
+ page.
+
+ \sa addPage(), setPage()
+*/
+QWizardPage *QWizard::page(int theid) const
+{
+ Q_D(const QWizard);
+ return d->pageMap.value(theid);
+}
+
+/*!
+ \fn bool QWizard::hasVisitedPage(int id) const
+
+ Returns true if the page history contains page \a id; otherwise,
+ returns false.
+
+ Pressing \gui Back marks the current page as "unvisited" again.
+
+ \sa visitedPages()
+*/
+bool QWizard::hasVisitedPage(int theid) const
+{
+ Q_D(const QWizard);
+ return d->history.contains(theid);
+}
+
+/*!
+ Returns the list of IDs of visited pages, in the order in which the pages
+ were visited.
+
+ Pressing \gui Back marks the current page as "unvisited" again.
+
+ \sa hasVisitedPage()
+*/
+QList<int> QWizard::visitedPages() const
+{
+ Q_D(const QWizard);
+ return d->history;
+}
+
+/*!
+ Returns the list of page IDs.
+ \since 4.5
+*/
+QList<int> QWizard::pageIds() const
+{
+ Q_D(const QWizard);
+ return d->pageMap.keys();
+}
+
+/*!
+ \property QWizard::startId
+ \brief the ID of the first page
+
+ If this property isn't explicitly set, this property defaults to
+ the lowest page ID in this wizard, or -1 if no page has been
+ inserted yet.
+
+ \sa restart(), nextId()
+*/
+void QWizard::setStartId(int theid)
+{
+ Q_D(QWizard);
+ if (!d->pageMap.contains(theid)) {
+ qWarning("QWizard::setStartId: Invalid page ID %d", theid);
+ return;
+ }
+ d->start = theid;
+}
+
+int QWizard::startId() const
+{
+ Q_D(const QWizard);
+ if (d->start != -1)
+ return d->start;
+ if (!d->pageMap.isEmpty())
+ return d->pageMap.constBegin().key();
+ return -1;
+}
+
+/*!
+ Returns a pointer to the current page, or 0 if there is no current
+ page (e.g., before the wizard is shown).
+
+ This is equivalent to calling page(currentId()).
+
+ \sa page(), currentId(), restart()
+*/
+QWizardPage *QWizard::currentPage() const
+{
+ Q_D(const QWizard);
+ return page(d->current);
+}
+
+/*!
+ \property QWizard::currentId
+ \brief the ID of the current page
+
+ This property cannot be set directly. To change the current page,
+ call next(), back(), or restart().
+
+ By default, this property has a value of -1, indicating that no page is
+ currently shown.
+
+ \sa currentIdChanged(), currentPage()
+*/
+int QWizard::currentId() const
+{
+ Q_D(const QWizard);
+ return d->current;
+}
+
+/*!
+ Sets the value of the field called \a name to \a value.
+
+ This function can be used to set fields on any page of the wizard.
+
+ \sa QWizardPage::registerField(), QWizardPage::setField(), field()
+*/
+void QWizard::setField(const QString &name, const QVariant &value)
+{
+ Q_D(QWizard);
+
+ int index = d->fieldIndexMap.value(name, -1);
+ if (index != -1) {
+ const QWizardField &field = d->fields.at(index);
+ if (!field.object->setProperty(field.property, value))
+ qWarning("QWizard::setField: Couldn't write to property '%s'",
+ field.property.constData());
+ return;
+ }
+
+ qWarning("QWizard::setField: No such field '%s'", qPrintable(name));
+}
+
+/*!
+ Returns the value of the field called \a name.
+
+ This function can be used to access fields on any page of the wizard.
+
+ \sa QWizardPage::registerField(), QWizardPage::field(), setField()
+*/
+QVariant QWizard::field(const QString &name) const
+{
+ Q_D(const QWizard);
+
+ int index = d->fieldIndexMap.value(name, -1);
+ if (index != -1) {
+ const QWizardField &field = d->fields.at(index);
+ return field.object->property(field.property);
+ }
+
+ qWarning("QWizard::field: No such field '%s'", qPrintable(name));
+ return QVariant();
+}
+
+/*!
+ \property QWizard::wizardStyle
+ \brief the look and feel of the wizard
+
+ By default, QWizard uses the AeroStyle on a Windows Vista system with alpha compositing
+ enabled, regardless of the current widget style. If this is not the case, the default
+ wizard style depends on the current widget style as follows: MacStyle is the default if
+ the current widget style is QMacStyle, ModernStyle is the default if the current widget
+ style is QWindowsStyle, and ClassicStyle is the default in all other cases.
+
+ \sa {Wizard Look and Feel}, options
+*/
+void QWizard::setWizardStyle(WizardStyle style)
+{
+ Q_D(QWizard);
+
+ const bool styleChange = style != d->wizStyle;
+
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ const bool aeroStyleChange =
+ d->vistaInitPending || d->vistaStateChanged || (styleChange && (style == AeroStyle || d->wizStyle == AeroStyle));
+ d->vistaStateChanged = false;
+ d->vistaInitPending = false;
+#endif
+
+ if (styleChange
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ || aeroStyleChange
+#endif
+ ) {
+ d->disableUpdates();
+ d->wizStyle = style;
+ d->updateButtonTexts();
+ d->updateLayout();
+ updateGeometry();
+ d->enableUpdates();
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (aeroStyleChange)
+ d->handleAeroStyleChange();
+#endif
+ }
+}
+
+QWizard::WizardStyle QWizard::wizardStyle() const
+{
+ Q_D(const QWizard);
+ return d->wizStyle;
+}
+
+/*!
+ Sets the given \a option to be enabled if \a on is true;
+ otherwise, clears the given \a option.
+
+ \sa options, testOption(), setWizardStyle()
+*/
+void QWizard::setOption(WizardOption option, bool on)
+{
+ Q_D(QWizard);
+ if (!(d->opts & option) != !on)
+ setOptions(d->opts ^ option);
+}
+
+/*!
+ Returns true if the given \a option is enabled; otherwise, returns
+ false.
+
+ \sa options, setOption(), setWizardStyle()
+*/
+bool QWizard::testOption(WizardOption option) const
+{
+ Q_D(const QWizard);
+ return (d->opts & option) != 0;
+}
+
+/*!
+ \property QWizard::options
+ \brief the various options that affect the look and feel of the wizard
+
+ By default, the following options are set (depending on the platform):
+
+ \list
+ \o Windows: HelpButtonOnRight.
+ \o Mac OS X: NoDefaultButton and NoCancelButton.
+ \o X11 and QWS (Qt for Embedded Linux): none.
+ \endlist
+
+ \sa wizardStyle
+*/
+void QWizard::setOptions(WizardOptions options)
+{
+ Q_D(QWizard);
+
+ WizardOptions changed = (options ^ d->opts);
+ if (!changed)
+ return;
+
+ d->disableUpdates();
+
+ d->opts = options;
+ if ((changed & IndependentPages) && !(d->opts & IndependentPages))
+ d->cleanupPagesNotInHistory();
+
+ if (changed & (NoDefaultButton | HaveHelpButton | HelpButtonOnRight | NoCancelButton
+ | CancelButtonOnLeft | HaveCustomButton1 | HaveCustomButton2
+ | HaveCustomButton3)) {
+ d->updateButtonLayout();
+ } else if (changed & (NoBackButtonOnStartPage | NoBackButtonOnLastPage
+ | HaveNextButtonOnLastPage | HaveFinishButtonOnEarlyPages
+ | DisabledBackButtonOnLastPage)) {
+ d->_q_updateButtonStates();
+ }
+
+ d->enableUpdates();
+ d->updateLayout();
+}
+
+QWizard::WizardOptions QWizard::options() const
+{
+ Q_D(const QWizard);
+ return d->opts;
+}
+
+/*!
+ Sets the text on button \a which to be \a text.
+
+ By default, the text on buttons depends on the wizardStyle. For
+ example, on Mac OS X, the \gui Next button is called \gui
+ Continue.
+
+ To add extra buttons to the wizard (e.g., a \gui Print button),
+ one way is to call setButtonText() with CustomButton1,
+ CustomButton2, or CustomButton3 to set their text, and make the
+ buttons visible using the HaveCustomButton1, HaveCustomButton2,
+ and/or HaveCustomButton3 options.
+
+ Button texts may also be set on a per-page basis using QWizardPage::setButtonText().
+
+ \sa setButton(), button(), setButtonLayout(), setOptions(), QWizardPage::setButtonText()
+*/
+void QWizard::setButtonText(WizardButton which, const QString &text)
+{
+ Q_D(QWizard);
+
+ if (!d->ensureButton(which))
+ return;
+
+ d->buttonCustomTexts.insert(which, text);
+
+ if (!currentPage() || !currentPage()->d_func()->buttonCustomTexts.contains(which))
+ d->btns[which]->setText(text);
+}
+
+/*!
+ Returns the text on button \a which.
+
+ If a text has ben set using setButtonText(), this text is returned.
+
+ By default, the text on buttons depends on the wizardStyle. For
+ example, on Mac OS X, the \gui Next button is called \gui
+ Continue.
+
+ \sa button(), setButton(), setButtonText(), QWizardPage::buttonText(),
+ QWizardPage::setButtonText()
+*/
+QString QWizard::buttonText(WizardButton which) const
+{
+ Q_D(const QWizard);
+
+ if (!d->ensureButton(which))
+ return QString();
+
+ if (d->buttonCustomTexts.contains(which))
+ return d->buttonCustomTexts.value(which);
+
+ const QString defText = buttonDefaultText(d->wizStyle, which, d);
+ if(!defText.isNull())
+ return defText;
+
+ return d->btns[which]->text();
+}
+
+/*!
+ Sets the order in which buttons are displayed to \a layout, where
+ \a layout is a list of \l{WizardButton}s.
+
+ The default layout depends on the options (e.g., whether
+ HelpButtonOnRight) that are set. You can call this function if
+ you need more control over the buttons' layout than what \l
+ options already provides.
+
+ You can specify horizontal stretches in the layout using \l
+ Stretch.
+
+ Example:
+
+ \snippet doc/src/snippets/code/src_gui_dialogs_qwizard.cpp 1
+
+ \sa setButton(), setButtonText(), setOptions()
+*/
+void QWizard::setButtonLayout(const QList<WizardButton> &layout)
+{
+ Q_D(QWizard);
+
+ for (int i = 0; i < layout.count(); ++i) {
+ WizardButton button1 = layout.at(i);
+
+ if (button1 == NoButton || button1 == Stretch)
+ continue;
+ if (!d->ensureButton(button1))
+ return;
+
+ // O(n^2), but n is very small
+ for (int j = 0; j < i; ++j) {
+ WizardButton button2 = layout.at(j);
+ if (button2 == button1) {
+ qWarning("QWizard::setButtonLayout: Duplicate button in layout");
+ return;
+ }
+ }
+ }
+
+ d->buttonsHaveCustomLayout = true;
+ d->buttonsCustomLayout = layout;
+ d->updateButtonLayout();
+}
+
+/*!
+ Sets the button corresponding to role \a which to \a button.
+
+ To add extra buttons to the wizard (e.g., a \gui Print button),
+ one way is to call setButton() with CustomButton1 to
+ CustomButton3, and make the buttons visible using the
+ HaveCustomButton1 to HaveCustomButton3 options.
+
+ \sa setButtonText(), setButtonLayout(), options
+*/
+void QWizard::setButton(WizardButton which, QAbstractButton *button)
+{
+ Q_D(QWizard);
+
+ if (uint(which) >= NButtons || d->btns[which] == button)
+ return;
+
+ if (QAbstractButton *oldButton = d->btns[which]) {
+ d->buttonLayout->removeWidget(oldButton);
+ delete oldButton;
+ }
+
+ d->btns[which] = button;
+ if (button) {
+ button->setParent(d->antiFlickerWidget);
+ d->buttonCustomTexts.insert(which, button->text());
+ d->connectButton(which);
+ } else {
+ d->buttonCustomTexts.remove(which); // ### what about page-specific texts set for 'which'
+ d->ensureButton(which); // (QWizardPage::setButtonText())? Clear them as well?
+ }
+
+ d->updateButtonLayout();
+}
+
+/*!
+ Returns the button corresponding to role \a which.
+
+ \sa setButton(), setButtonText()
+*/
+QAbstractButton *QWizard::button(WizardButton which) const
+{
+ Q_D(const QWizard);
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (d->wizStyle == AeroStyle && which == BackButton)
+ return d->vistaHelper->backButton();
+#endif
+ if (!d->ensureButton(which))
+ return 0;
+ return d->btns[which];
+}
+
+/*!
+ \property QWizard::titleFormat
+ \brief the text format used by page titles
+
+ The default format is Qt::AutoText.
+
+ \sa QWizardPage::title, subTitleFormat
+*/
+void QWizard::setTitleFormat(Qt::TextFormat format)
+{
+ Q_D(QWizard);
+ d->titleFmt = format;
+ d->updateLayout();
+}
+
+Qt::TextFormat QWizard::titleFormat() const
+{
+ Q_D(const QWizard);
+ return d->titleFmt;
+}
+
+/*!
+ \property QWizard::subTitleFormat
+ \brief the text format used by page subtitles
+
+ The default format is Qt::AutoText.
+
+ \sa QWizardPage::title, titleFormat
+*/
+void QWizard::setSubTitleFormat(Qt::TextFormat format)
+{
+ Q_D(QWizard);
+ d->subTitleFmt = format;
+ d->updateLayout();
+}
+
+Qt::TextFormat QWizard::subTitleFormat() const
+{
+ Q_D(const QWizard);
+ return d->subTitleFmt;
+}
+
+/*!
+ Sets the pixmap for role \a which to \a pixmap.
+
+ The pixmaps are used by QWizard when displaying a page. Which
+ pixmaps are actually used depend on the \l{Wizard Look and
+ Feel}{wizard style}.
+
+ Pixmaps can also be set for a specific page using
+ QWizardPage::setPixmap().
+
+ \sa QWizardPage::setPixmap(), {Elements of a Wizard Page}
+*/
+void QWizard::setPixmap(WizardPixmap which, const QPixmap &pixmap)
+{
+ Q_D(QWizard);
+ Q_ASSERT(uint(which) < NPixmaps);
+ d->defaultPixmaps[which] = pixmap;
+ d->updatePixmap(which);
+}
+
+/*!
+ Returns the pixmap set for role \a which.
+
+ By default, the only pixmap that is set is the BackgroundPixmap on
+ Mac OS X.
+
+ \sa QWizardPage::pixmap(), {Elements of a Wizard Page}
+*/
+QPixmap QWizard::pixmap(WizardPixmap which) const
+{
+ Q_D(const QWizard);
+ Q_ASSERT(uint(which) < NPixmaps);
+#ifdef Q_WS_MAC
+ if (which == BackgroundPixmap && d->defaultPixmaps[BackgroundPixmap].isNull())
+ d->defaultPixmaps[BackgroundPixmap] = d->findDefaultBackgroundPixmap();
+#endif
+ return d->defaultPixmaps[which];
+}
+
+/*!
+ Sets the default property for \a className to be \a property,
+ and the associated change signal to be \a changedSignal.
+
+ The default property is used when an instance of \a className (or
+ of one of its subclasses) is passed to
+ QWizardPage::registerField() and no property is specified.
+
+ QWizard knows the most common Qt widgets. For these (or their
+ subclasses), you don't need to specify a \a property or a \a
+ changedSignal. The table below lists these widgets:
+
+ \table
+ \header \o Widget \o Property \o Change Notification Signal
+ \row \o QAbstractButton \o bool \l{QAbstractButton::}{checked} \o \l{QAbstractButton::}{toggled()}
+ \row \o QAbstractSlider \o int \l{QAbstractSlider::}{value} \o \l{QAbstractSlider::}{valueChanged()}
+ \row \o QComboBox \o int \l{QComboBox::}{currentIndex} \o \l{QComboBox::}{currentIndexChanged()}
+ \row \o QDateTimeEdit \o QDateTime \l{QDateTimeEdit::}{dateTime} \o \l{QDateTimeEdit::}{dateTimeChanged()}
+ \row \o QLineEdit \o QString \l{QLineEdit::}{text} \o \l{QLineEdit::}{textChanged()}
+ \row \o QListWidget \o int \l{QListWidget::}{currentRow} \o \l{QListWidget::}{currentRowChanged()}
+ \row \o QSpinBox \o int \l{QSpinBox::}{value} \o \l{QSpinBox::}{valueChanged()}
+ \endtable
+
+ \sa QWizardPage::registerField()
+*/
+void QWizard::setDefaultProperty(const char *className, const char *property,
+ const char *changedSignal)
+{
+ Q_D(QWizard);
+ for (int i = d->defaultPropertyTable.count() - 1; i >= 0; --i) {
+ if (qstrcmp(d->defaultPropertyTable.at(i).className, className) == 0) {
+ d->defaultPropertyTable.remove(i);
+ break;
+ }
+ }
+ d->defaultPropertyTable.append(QWizardDefaultProperty(className, property, changedSignal));
+}
+
+/*!
+ \reimp
+*/
+void QWizard::setVisible(bool visible)
+{
+ Q_D(QWizard);
+ if (visible) {
+ if (d->current == -1)
+ restart();
+ }
+ QDialog::setVisible(visible);
+}
+
+/*!
+ \reimp
+*/
+QSize QWizard::sizeHint() const
+{
+ Q_D(const QWizard);
+ QSize result = d->mainLayout->totalSizeHint();
+ QSize extra(500, 360);
+ if (d->wizStyle == MacStyle && d->current != -1) {
+ QSize pixmap(currentPage()->pixmap(BackgroundPixmap).size());
+ extra.setWidth(616);
+ if (!pixmap.isNull()) {
+ extra.setHeight(pixmap.height());
+
+ /*
+ The width isn't always reliable as a size hint, as
+ some wizard backgrounds just cover the leftmost area.
+ Use a rule of thumb to determine if the width is
+ reliable or not.
+ */
+ if (pixmap.width() >= pixmap.height())
+ extra.setWidth(pixmap.width());
+ }
+ }
+ return result.expandedTo(extra);
+}
+
+/*!
+ \fn void QWizard::currentIdChanged(int id)
+
+ This signal is emitted when the current page changes, with the new
+ current \a id.
+
+ \sa currentId(), currentPage()
+*/
+
+/*!
+ \fn void QWizard::helpRequested()
+
+ This signal is emitted when the user clicks the \gui Help button.
+
+ By default, no \gui Help button is shown. Call
+ setOption(HaveHelpButton, true) to have one.
+
+ Example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 0
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 5
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 7
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 8
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 10
+ \dots
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 12
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 14
+ \codeline
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 15
+
+ \sa customButtonClicked()
+*/
+
+/*!
+ \fn void QWizard::customButtonClicked(int which)
+
+ This signal is emitted when the user clicks a custom button. \a
+ which can be CustomButton1, CustomButton2, or CustomButton3.
+
+ By default, no custom button is shown. Call setOption() with
+ HaveCustomButton1, HaveCustomButton2, or HaveCustomButton3 to have
+ one, and use setButtonText() or setButton() to configure it.
+
+ \sa helpRequested()
+*/
+
+/*!
+ Goes back to the previous page.
+
+ This is equivalent to pressing the \gui Back button.
+
+ \sa next(), accept(), reject(), restart()
+*/
+void QWizard::back()
+{
+ Q_D(QWizard);
+ int n = d->history.count() - 2;
+ if (n < 0)
+ return;
+ d->switchToPage(d->history.at(n), QWizardPrivate::Backward);
+}
+
+/*!
+ Advances to the next page.
+
+ This is equivalent to pressing the \gui Next or \gui Commit button.
+
+ \sa nextId(), back(), accept(), reject(), restart()
+*/
+void QWizard::next()
+{
+ Q_D(QWizard);
+
+ if (d->current == -1)
+ return;
+
+ if (validateCurrentPage()) {
+ int next = nextId();
+ if (next != -1) {
+ if (d->history.contains(next)) {
+ qWarning("QWizard::next: Page %d already met", next);
+ return;
+ }
+ if (!d->pageMap.contains(next)) {
+ qWarning("QWizard::next: No such page %d", next);
+ return;
+ }
+ d->switchToPage(next, QWizardPrivate::Forward);
+ }
+ }
+}
+
+/*!
+ Restarts the wizard at the start page. This function is called automatically when the
+ wizard is shown.
+
+ \sa startId()
+*/
+void QWizard::restart()
+{
+ Q_D(QWizard);
+ d->disableUpdates();
+ d->reset();
+ d->switchToPage(startId(), QWizardPrivate::Forward);
+ d->enableUpdates();
+}
+
+/*!
+ \reimp
+*/
+bool QWizard::event(QEvent *event)
+{
+ Q_D(QWizard);
+ if (event->type() == QEvent::StyleChange) { // Propagate style
+ d->setStyle(style());
+ d->updateLayout();
+ }
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ else if (event->type() == QEvent::Show && d->vistaInitPending) {
+ d->vistaInitPending = false;
+ d->wizStyle = AeroStyle;
+ d->handleAeroStyleChange();
+ }
+ else if (d->isVistaThemeEnabled()) {
+ d->vistaHelper->mouseEvent(event);
+ }
+#endif
+ return QDialog::event(event);
+}
+
+/*!
+ \reimp
+*/
+void QWizard::resizeEvent(QResizeEvent *event)
+{
+ Q_D(QWizard);
+ int heightOffset = 0;
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (d->isVistaThemeEnabled()) {
+ heightOffset = d->vistaHelper->topOffset();
+ if (d->isVistaThemeEnabled(QVistaHelper::VistaAero))
+ heightOffset += d->vistaHelper->titleBarSize();
+ }
+#endif
+ d->antiFlickerWidget->resize(event->size().width(), event->size().height() - heightOffset);
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ if (d->isVistaThemeEnabled())
+ d->vistaHelper->resizeEvent(event);
+#endif
+ QDialog::resizeEvent(event);
+}
+
+/*!
+ \reimp
+*/
+void QWizard::paintEvent(QPaintEvent * event)
+{
+ Q_D(QWizard);
+ if (d->wizStyle == MacStyle && currentPage()) {
+ QPixmap backgroundPixmap = currentPage()->pixmap(BackgroundPixmap);
+ if (backgroundPixmap.isNull())
+ return;
+
+ QPainter painter(this);
+ painter.drawPixmap(0, (height() - backgroundPixmap.height()) / 2, backgroundPixmap);
+ }
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ else if (d->isVistaThemeEnabled()) {
+ if (d->isVistaThemeEnabled(QVistaHelper::VistaBasic)) {
+ QPainter painter(this);
+ QColor color = d->vistaHelper->basicWindowFrameColor();
+ painter.fillRect(0, 0, width(), QVistaHelper::topOffset(), color);
+ }
+ d->vistaHelper->paintEvent(event);
+ }
+#else
+ Q_UNUSED(event);
+#endif
+}
+
+#if defined(Q_WS_WIN)
+/*!
+ \reimp
+*/
+bool QWizard::winEvent(MSG *message, long *result)
+{
+#if !defined(QT_NO_STYLE_WINDOWSVISTA)
+ Q_D(QWizard);
+ if (d->isVistaThemeEnabled()) {
+ const bool winEventResult = d->vistaHelper->handleWinEvent(message, result);
+ if (QVistaHelper::vistaState() != d->vistaState) {
+ d->vistaState = QVistaHelper::vistaState();
+ d->vistaStateChanged = true;
+ setWizardStyle(AeroStyle);
+ }
+ return winEventResult;
+ } else {
+ return QDialog::winEvent(message, result);
+ }
+#else
+ return QDialog::winEvent(message, result);
+#endif
+}
+#endif
+
+/*!
+ \reimp
+*/
+void QWizard::done(int result)
+{
+ Q_D(QWizard);
+ // canceling leaves the wizard in a known state
+ if (result == Rejected) {
+ d->reset();
+ } else {
+ if (!validateCurrentPage())
+ return;
+ }
+ QDialog::done(result);
+}
+
+/*!
+ \fn void QWizard::initializePage(int id)
+
+ This virtual function is called by QWizard to prepare page \a id
+ just before it is shown either as a result of QWizard::restart()
+ being called, or as a result of the user clicking \gui Next. (However, if the \l
+ QWizard::IndependentPages option is set, this function is only
+ called the first time the page is shown.)
+
+ By reimplementing this function, you can ensure that the page's
+ fields are properly initialized based on fields from previous
+ pages.
+
+ The default implementation calls QWizardPage::initializePage() on
+ page(\a id).
+
+ \sa QWizardPage::initializePage(), cleanupPage()
+*/
+void QWizard::initializePage(int theid)
+{
+ QWizardPage *page = this->page(theid);
+ if (page)
+ page->initializePage();
+}
+
+/*!
+ \fn void QWizard::cleanupPage(int id)
+
+ This virtual function is called by QWizard to clean up page \a id just before the
+ user leaves it by clicking \gui Back (unless the \l QWizard::IndependentPages option is set).
+
+ The default implementation calls QWizardPage::cleanupPage() on
+ page(\a id).
+
+ \sa QWizardPage::cleanupPage(), initializePage()
+*/
+void QWizard::cleanupPage(int theid)
+{
+ QWizardPage *page = this->page(theid);
+ if (page)
+ page->cleanupPage();
+}
+
+/*!
+ This virtual function is called by QWizard when the user clicks
+ \gui Next or \gui Finish to perform some last-minute validation.
+ If it returns true, the next page is shown (or the wizard
+ finishes); otherwise, the current page stays up.
+
+ The default implementation calls QWizardPage::validatePage() on
+ the currentPage().
+
+ When possible, it is usually better style to disable the \gui
+ Next or \gui Finish button (by specifying \l{mandatory fields} or
+ by reimplementing QWizardPage::isComplete()) than to reimplement
+ validateCurrentPage().
+
+ \sa QWizardPage::validatePage(), currentPage()
+*/
+bool QWizard::validateCurrentPage()
+{
+ QWizardPage *page = currentPage();
+ if (!page)
+ return true;
+
+ return page->validatePage();
+}
+
+/*!
+ This virtual function is called by QWizard to find out which page
+ to show when the user clicks the \gui Next button.
+
+ The return value is the ID of the next page, or -1 if no page follows.
+
+ The default implementation calls QWizardPage::nextId() on the
+ currentPage().
+
+ By reimplementing this function, you can specify a dynamic page
+ order.
+
+ \sa QWizardPage::nextId(), currentPage()
+*/
+int QWizard::nextId() const
+{
+ const QWizardPage *page = currentPage();
+ if (!page)
+ return -1;
+
+ return page->nextId();
+}
+
+/*!
+ \class QWizardPage
+ \since 4.3
+ \brief The QWizardPage class is the base class for wizard pages.
+
+ QWizard represents a wizard. Each page is a QWizardPage. When
+ you create your own wizards, you can use QWizardPage directly,
+ or you can subclass it for more control.
+
+ A page has the following attributes, which are rendered by
+ QWizard: a \l title, a \l subTitle, and a \l{setPixmap()}{set of
+ pixmaps}. See \l{Elements of a Wizard Page} for details. Once a
+ page is added to the wizard (using QWizard::addPage() or
+ QWizard::setPage()), wizard() returns a pointer to the
+ associated QWizard object.
+
+ Page provides five virtual functions that can be reimplemented to
+ provide custom behavior:
+
+ \list
+ \o initializePage() is called to initialize the page's contents
+ when the user clicks the wizard's \gui Next button. If you
+ want to derive the page's default from what the user entered
+ on previous pages, this is the function to reimplement.
+ \o cleanupPage() is called to reset the page's contents when the
+ user clicks the wizard's \gui Back button.
+ \o validatePage() validates the page when the user clicks \gui
+ Next or \gui Finish. It is often used to show an error message
+ if the user has entered incomplete or invalid information.
+ \o nextId() returns the ID of the next page. It is useful when
+ \l{creating non-linear wizards}, which allow different
+ traversal paths based on the information provided by the user.
+ \o isComplete() is called to determine whether the \gui Next
+ and/or \gui Finish button should be enabled or disabled. If
+ you reimplement isComplete(), also make sure that
+ completeChanged() is emitted whenever the complete state
+ changes.
+ \endlist
+
+ Normally, the \gui Next button and the \gui Finish button of a
+ wizard are mutually exclusive. If isFinalPage() returns true, \gui
+ Finish is available; otherwise, \gui Next is available. By
+ default, isFinalPage() is true only when nextId() returns -1. If
+ you want to show \gui Next and \gui Final simultaneously for a
+ page (letting the user perform an "early finish"), call
+ setFinalPage(true) on that page. For wizards that support early
+ finishes, you might also want to set the
+ \l{QWizard::}{HaveNextButtonOnLastPage} and
+ \l{QWizard::}{HaveFinishButtonOnEarlyPages} options on the
+ wizard.
+
+ In many wizards, the contents of a page may affect the default
+ values of the fields of a later page. To make it easy to
+ communicate between pages, QWizard supports a \l{Registering and
+ Using Fields}{"field" mechanism} that allows you to register a
+ field (e.g., a QLineEdit) on a page and to access its value from
+ any page. Fields are global to the entire wizard and make it easy
+ for any single page to access information stored by another page,
+ without having to put all the logic in QWizard or having the
+ pages know explicitly about each other. Fields are registered
+ using registerField() and can be accessed at any time using
+ field() and setField().
+
+ \sa QWizard, {Class Wizard Example}, {License Wizard Example}
+*/
+
+/*!
+ Constructs a wizard page with the given \a parent.
+
+ When the page is inserted into a wizard using QWizard::addPage()
+ or QWizard::setPage(), the parent is automatically set to be the
+ wizard.
+
+ \sa wizard()
+*/
+QWizardPage::QWizardPage(QWidget *parent)
+ : QWidget(*new QWizardPagePrivate, parent, 0)
+{
+ connect(this, SIGNAL(completeChanged()), this, SLOT(_q_updateCachedCompleteState()));
+}
+
+/*!
+ \property QWizardPage::title
+ \brief the title of the page
+
+ The title is shown by the QWizard, above the actual page. All
+ pages should have a title.
+
+ The title may be plain text or HTML, depending on the value of the
+ \l{QWizard::titleFormat} property.
+
+ By default, this property contains an empty string.
+
+ \sa subTitle, {Elements of a Wizard Page}
+*/
+void QWizardPage::setTitle(const QString &title)
+{
+ Q_D(QWizardPage);
+ d->title = title;
+ if (d->wizard && d->wizard->currentPage() == this)
+ d->wizard->d_func()->updateLayout();
+}
+
+QString QWizardPage::title() const
+{
+ Q_D(const QWizardPage);
+ return d->title;
+}
+
+/*!
+ \property QWizardPage::subTitle
+ \brief the subtitle of the page
+
+ The subtitle is shown by the QWizard, between the title and the
+ actual page. Subtitles are optional. In
+ \l{QWizard::ClassicStyle}{ClassicStyle} and
+ \l{QWizard::ModernStyle}{ModernStyle}, using subtitles is
+ necessary to make the header appear. In
+ \l{QWizard::MacStyle}{MacStyle}, the subtitle is shown as a text
+ label just above the actual page.
+
+ The subtitle may be plain text or HTML, depending on the value of
+ the \l{QWizard::subTitleFormat} property.
+
+ By default, this property contains an empty string.
+
+ \sa title, QWizard::IgnoreSubTitles, {Elements of a Wizard Page}
+*/
+void QWizardPage::setSubTitle(const QString &subTitle)
+{
+ Q_D(QWizardPage);
+ d->subTitle = subTitle;
+ if (d->wizard && d->wizard->currentPage() == this)
+ d->wizard->d_func()->updateLayout();
+}
+
+QString QWizardPage::subTitle() const
+{
+ Q_D(const QWizardPage);
+ return d->subTitle;
+}
+
+/*!
+ Sets the pixmap for role \a which to \a pixmap.
+
+ The pixmaps are used by QWizard when displaying a page. Which
+ pixmaps are actually used depend on the \l{Wizard Look and
+ Feel}{wizard style}.
+
+ Pixmaps can also be set for the entire wizard using
+ QWizard::setPixmap(), in which case they apply for all pages that
+ don't specify a pixmap.
+
+ \sa QWizard::setPixmap(), {Elements of a Wizard Page}
+*/
+void QWizardPage::setPixmap(QWizard::WizardPixmap which, const QPixmap &pixmap)
+{
+ Q_D(QWizardPage);
+ Q_ASSERT(uint(which) < QWizard::NPixmaps);
+ d->pixmaps[which] = pixmap;
+ if (d->wizard && d->wizard->currentPage() == this)
+ d->wizard->d_func()->updatePixmap(which);
+}
+
+/*!
+ Returns the pixmap set for role \a which.
+
+ Pixmaps can also be set for the entire wizard using
+ QWizard::setPixmap(), in which case they apply for all pages that
+ don't specify a pixmap.
+
+ \sa QWizard::pixmap(), {Elements of a Wizard Page}
+*/
+QPixmap QWizardPage::pixmap(QWizard::WizardPixmap which) const
+{
+ Q_D(const QWizardPage);
+ Q_ASSERT(uint(which) < QWizard::NPixmaps);
+
+ const QPixmap &pixmap = d->pixmaps[which];
+ if (!pixmap.isNull())
+ return pixmap;
+
+ if (wizard())
+ return wizard()->pixmap(which);
+
+ return pixmap;
+}
+
+/*!
+ This virtual function is called by QWizard::initializePage() to
+ prepare the page just before it is shown either as a result of QWizard::restart()
+ being called, or as a result of the user clicking \gui Next.
+ (However, if the \l QWizard::IndependentPages option is set, this function is only
+ called the first time the page is shown.)
+
+ By reimplementing this function, you can ensure that the page's
+ fields are properly initialized based on fields from previous
+ pages. For example:
+
+ \snippet examples/dialogs/classwizard/classwizard.cpp 17
+
+ The default implementation does nothing.
+
+ \sa QWizard::initializePage(), cleanupPage(), QWizard::IndependentPages
+*/
+void QWizardPage::initializePage()
+{
+}
+
+/*!
+ This virtual function is called by QWizard::cleanupPage() when
+ the user leaves the page by clicking \gui Back (unless the \l QWizard::IndependentPages
+ option is set).
+
+ The default implementation resets the page's fields to their
+ original values (the values they had before initializePage() was
+ called).
+
+ \sa QWizard::cleanupPage(), initializePage(), QWizard::IndependentPages
+*/
+void QWizardPage::cleanupPage()
+{
+ Q_D(QWizardPage);
+ if (d->wizard) {
+ QVector<QWizardField> &fields = d->wizard->d_func()->fields;
+ for (int i = 0; i < fields.count(); ++i) {
+ const QWizardField &field = fields.at(i);
+ if (field.page == this)
+ field.object->setProperty(field.property, field.initialValue);
+ }
+ }
+}
+
+/*!
+ This virtual function is called by QWizard::validateCurrentPage()
+ when the user clicks \gui Next or \gui Finish to perform some
+ last-minute validation. If it returns true, the next page is shown
+ (or the wizard finishes); otherwise, the current page stays up.
+
+ The default implementation returns true.
+
+ When possible, it is usually better style to disable the \gui
+ Next or \gui Finish button (by specifying \l{mandatory fields} or
+ reimplementing isComplete()) than to reimplement validatePage().
+
+ \sa QWizard::validateCurrentPage(), isComplete()
+*/
+bool QWizardPage::validatePage()
+{
+ return true;
+}
+
+/*!
+ This virtual function is called by QWizard to determine whether
+ the \gui Next or \gui Finish button should be enabled or
+ disabled.
+
+ The default implementation returns true if all \l{mandatory
+ fields} are filled; otherwise, it returns false.
+
+ If you reimplement this function, make sure to emit completeChanged(),
+ from the rest of your implementation, whenever the value of isComplete()
+ changes. This ensures that QWizard updates the enabled or disabled state of
+ its buttons. An example of the reimplementation is
+ available \l{http://doc.trolltech.com/qq/qq22-qwizard.html#validatebeforeitstoolate}
+ {here}.
+
+ \sa completeChanged(), isFinalPage()
+*/
+bool QWizardPage::isComplete() const
+{
+ Q_D(const QWizardPage);
+
+ if (!d->wizard)
+ return true;
+
+ const QVector<QWizardField> &wizardFields = d->wizard->d_func()->fields;
+ for (int i = wizardFields.count() - 1; i >= 0; --i) {
+ const QWizardField &field = wizardFields.at(i);
+ if (field.page == this && field.mandatory) {
+ QVariant value = field.object->property(field.property);
+ if (value == field.initialValue)
+ return false;
+
+#ifndef QT_NO_LINEEDIT
+ if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(field.object)) {
+ if (!lineEdit->hasAcceptableInput())
+ return false;
+ }
+#endif
+#ifndef QT_NO_SPINBOX
+ if (QAbstractSpinBox *spinBox = qobject_cast<QAbstractSpinBox *>(field.object)) {
+ if (!spinBox->hasAcceptableInput())
+ return false;
+ }
+#endif
+ }
+ }
+ return true;
+}
+
+/*!
+ Explicitly sets this page to be final if \a finalPage is true.
+
+ After calling setFinalPage(true), isFinalPage() returns true and the \gui
+ Finish button is visible (and enabled if isComplete() returns
+ true).
+
+ After calling setFinalPage(false), isFinalPage() returns true if
+ nextId() returns -1; otherwise, it returns false.
+
+ \sa isComplete(), QWizard::HaveFinishButtonOnEarlyPages
+*/
+void QWizardPage::setFinalPage(bool finalPage)
+{
+ Q_D(QWizardPage);
+ d->explicitlyFinal = finalPage;
+ QWizard *wizard = this->wizard();
+ if (wizard && wizard->currentPage() == this)
+ wizard->d_func()->updateCurrentPage();
+}
+
+/*!
+ This function is called by QWizard to determine whether the \gui
+ Finish button should be shown for this page or not.
+
+ By default, it returns true if there is no next page
+ (i.e., nextId() returns -1); otherwise, it returns false.
+
+ By explicitly calling setFinalPage(true), you can let the user perform an
+ "early finish".
+
+ \sa isComplete(), QWizard::HaveFinishButtonOnEarlyPages
+*/
+bool QWizardPage::isFinalPage() const
+{
+ Q_D(const QWizardPage);
+ if (d->explicitlyFinal)
+ return true;
+
+ QWizard *wizard = this->wizard();
+ if (wizard && wizard->currentPage() == this) {
+ // try to use the QWizard implementation if possible
+ return wizard->nextId() == -1;
+ } else {
+ return nextId() == -1;
+ }
+}
+
+/*!
+ Sets this page to be a commit page if \a commitPage is true; otherwise,
+ sets it to be a normal page.
+
+ A commit page is a page that represents an action which cannot be undone
+ by clicking \gui Back or \gui Cancel.
+
+ A \gui Commit button replaces the \gui Next button on a commit page. Clicking this
+ button simply calls QWizard::next() just like clicking \gui Next does.
+
+ A page entered directly from a commit page has its \gui Back button disabled.
+
+ \sa isCommitPage()
+*/
+void QWizardPage::setCommitPage(bool commitPage)
+{
+ Q_D(QWizardPage);
+ d->commit = commitPage;
+ QWizard *wizard = this->wizard();
+ if (wizard && wizard->currentPage() == this)
+ wizard->d_func()->updateCurrentPage();
+}
+
+/*!
+ Returns true if this page is a commit page; otherwise returns false.
+
+ \sa setCommitPage()
+*/
+bool QWizardPage::isCommitPage() const
+{
+ Q_D(const QWizardPage);
+ return d->commit;
+}
+
+/*!
+ Sets the text on button \a which to be \a text on this page.
+
+ By default, the text on buttons depends on the QWizard::wizardStyle,
+ but may be redefined for the wizard as a whole using QWizard::setButtonText().
+
+ \sa buttonText(), QWizard::setButtonText(), QWizard::buttonText()
+*/
+void QWizardPage::setButtonText(QWizard::WizardButton which, const QString &text)
+{
+ Q_D(QWizardPage);
+ d->buttonCustomTexts.insert(which, text);
+ if (wizard() && wizard()->currentPage() == this && wizard()->d_func()->btns[which])
+ wizard()->d_func()->btns[which]->setText(text);
+}
+
+/*!
+ Returns the text on button \a which on this page.
+
+ If a text has ben set using setButtonText(), this text is returned.
+ Otherwise, if a text has been set using QWizard::setButtonText(),
+ this text is returned.
+
+ By default, the text on buttons depends on the QWizard::wizardStyle.
+ For example, on Mac OS X, the \gui Next button is called \gui
+ Continue.
+
+ \sa setButtonText(), QWizard::buttonText(), QWizard::setButtonText()
+*/
+QString QWizardPage::buttonText(QWizard::WizardButton which) const
+{
+ Q_D(const QWizardPage);
+
+ if (d->buttonCustomTexts.contains(which))
+ return d->buttonCustomTexts.value(which);
+
+ if (wizard())
+ return wizard()->buttonText(which);
+
+ return QString();
+}
+
+/*!
+ This virtual function is called by QWizard::nextId() to find
+ out which page to show when the user clicks the \gui Next button.
+
+ The return value is the ID of the next page, or -1 if no page follows.
+
+ By default, this function returns the lowest ID greater than the ID
+ of the current page, or -1 if there is no such ID.
+
+ By reimplementing this function, you can specify a dynamic page
+ order. For example:
+
+ \snippet examples/dialogs/licensewizard/licensewizard.cpp 18
+
+ \sa QWizard::nextId()
+*/
+int QWizardPage::nextId() const
+{
+ Q_D(const QWizardPage);
+
+ if (!d->wizard)
+ return -1;
+
+ bool foundCurrentPage = false;
+
+ const QWizardPrivate::PageMap &pageMap = d->wizard->d_func()->pageMap;
+ QWizardPrivate::PageMap::const_iterator i = pageMap.constBegin();
+ QWizardPrivate::PageMap::const_iterator end = pageMap.constEnd();
+
+ for (; i != end; ++i) {
+ if (i.value() == this) {
+ foundCurrentPage = true;
+ } else if (foundCurrentPage) {
+ return i.key();
+ }
+ }
+ return -1;
+}
+
+/*!
+ \fn void QWizardPage::completeChanged()
+
+ This signal is emitted whenever the complete state of the page
+ (i.e., the value of isComplete()) changes.
+
+ If you reimplement isComplete(), make sure to emit
+ completeChanged() whenever the value of isComplete() changes, to
+ ensure that QWizard updates the enabled or disabled state of its
+ buttons.
+
+ \sa isComplete()
+*/
+
+/*!
+ Sets the value of the field called \a name to \a value.
+
+ This function can be used to set fields on any page of the wizard.
+ It is equivalent to calling
+ wizard()->\l{QWizard::setField()}{setField(\a name, \a value)}.
+
+ \sa QWizard::setField(), field(), registerField()
+*/
+void QWizardPage::setField(const QString &name, const QVariant &value)
+{
+ Q_D(QWizardPage);
+ if (!d->wizard)
+ return;
+ d->wizard->setField(name, value);
+}
+
+/*!
+ Returns the value of the field called \a name.
+
+ This function can be used to access fields on any page of the
+ wizard. It is equivalent to calling
+ wizard()->\l{QWizard::field()}{field(\a name)}.
+
+ Example:
+
+ \snippet examples/dialogs/classwizard/classwizard.cpp 17
+
+ \sa QWizard::field(), setField(), registerField()
+*/
+QVariant QWizardPage::field(const QString &name) const
+{
+ Q_D(const QWizardPage);
+ if (!d->wizard)
+ return QVariant();
+ return d->wizard->field(name);
+}
+
+/*!
+ Creates a field called \a name associated with the given \a
+ property of the given \a widget. From then on, that property
+ becomes accessible using field() and setField().
+
+ Fields are global to the entire wizard and make it easy for any
+ single page to access information stored by another page, without
+ having to put all the logic in QWizard or having the pages know
+ explicitly about each other.
+
+ If \a name ends with an asterisk (\c *), the field is a mandatory
+ field. When a page has mandatory fields, the \gui Next and/or
+ \gui Finish buttons are enabled only when all mandatory fields
+ are filled. This requires a \a changedSignal to be specified, to
+ tell QWizard to recheck the value stored by the mandatory field.
+
+ QWizard knows the most common Qt widgets. For these (or their
+ subclasses), you don't need to specify a \a property or a \a
+ changedSignal. The table below lists these widgets:
+
+ \table
+ \header \o Widget \o Property \o Change Notification Signal
+ \row \o QAbstractButton \o bool \l{QAbstractButton::}{checked} \o \l{QAbstractButton::}{toggled()}
+ \row \o QAbstractSlider \o int \l{QAbstractSlider::}{value} \o \l{QAbstractSlider::}{valueChanged()}
+ \row \o QComboBox \o int \l{QComboBox::}{currentIndex} \o \l{QComboBox::}{currentIndexChanged()}
+ \row \o QDateTimeEdit \o QDateTime \l{QDateTimeEdit::}{dateTime} \o \l{QDateTimeEdit::}{dateTimeChanged()}
+ \row \o QLineEdit \o QString \l{QLineEdit::}{text} \o \l{QLineEdit::}{textChanged()}
+ \row \o QListWidget \o int \l{QListWidget::}{currentRow} \o \l{QListWidget::}{currentRowChanged()}
+ \row \o QSpinBox \o int \l{QSpinBox::}{value} \o \l{QSpinBox::}{valueChanged()}
+ \endtable
+
+ You can use QWizard::setDefaultProperty() to add entries to this
+ table or to override existing entries.
+
+ To consider a field "filled", QWizard simply checks that their
+ current value doesn't equal their original value (the value they
+ had before initializePage() was called). For QLineEdit, it also
+ checks that
+ \l{QLineEdit::hasAcceptableInput()}{hasAcceptableInput()} returns
+ true, to honor any validator or mask.
+
+ QWizard's mandatory field mechanism is provided for convenience.
+ It can be bypassed by reimplementing QWizardPage::isComplete().
+
+ \sa field(), setField(), QWizard::setDefaultProperty()
+*/
+void QWizardPage::registerField(const QString &name, QWidget *widget, const char *property,
+ const char *changedSignal)
+{
+ Q_D(QWizardPage);
+ QWizardField field(this, name, widget, property, changedSignal);
+ if (d->wizard) {
+ d->wizard->d_func()->addField(field);
+ } else {
+ d->pendingFields += field;
+ }
+}
+
+/*!
+ Returns the wizard associated with this page, or 0 if this page
+ hasn't been inserted into a QWizard yet.
+
+ \sa QWizard::addPage(), QWizard::setPage()
+*/
+QWizard *QWizardPage::wizard() const
+{
+ Q_D(const QWizardPage);
+ return d->wizard;
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qwizard.cpp"
+
+#endif // QT_NO_WIZARD