macmainwindow.cpp Example File
demos/macmainwindow/macmainwindow.cpp

 /****************************************************************************
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 ** Copyright (C) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
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 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact qt-sales@nokia.com if any conditions of this licensing
 ** agreement are not clear to you.
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 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
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 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 ****************************************************************************/
 #include "macmainwindow.h"
 #include <QtGui>

 #ifdef Q_WS_MAC

 #include <Carbon/Carbon.h>

 // The SearchWidget class wraps a native HISearchField.
 SearchWidget::SearchWidget(QWidget *parent)
 :QWidget(parent)
 {
     // Create a native search field and pass its window id to QWidget::create.
     searchFieldText = CFStringCreateWithCString(0, "search", 0);
     HISearchFieldCreate(NULL/*bounds*/, kHISearchFieldAttributesSearchIcon | kHISearchFieldAttributesCancel,
                         NULL/*menu ref*/, searchFieldText, &searchField);
     create(reinterpret_cast<WId>(searchField));

     // Use a Qt menu for the search field menu.
     QMenu *searchMenu = new QMenu(this);

     QAction * indexAction = searchMenu->addAction("Index Search");
     indexAction->setCheckable(true);
     indexAction->setChecked(true);

     QAction * fulltextAction = searchMenu->addAction("Full Text Search");
     fulltextAction->setCheckable(true);

     QActionGroup *searchActionGroup = new QActionGroup(this);
     searchActionGroup->addAction(indexAction);
     searchActionGroup->addAction(fulltextAction);
     searchActionGroup->setExclusive(true);

     MenuRef macSearchMenu = searchMenu->macMenu(0);
     HISearchFieldSetSearchMenu(searchField, macSearchMenu);
     setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));

 }

 SearchWidget::~SearchWidget()
 {
     CFRelease(searchField);
     CFRelease(searchFieldText);
 }

 // Get the size hint from the search field.
 QSize SearchWidget::sizeHint() const
 {
     EventRef event;
     HIRect optimalBounds;
     CreateEvent(0, kEventClassControl,
         kEventControlGetOptimalBounds,
         GetCurrentEventTime(),
         kEventAttributeUserEvent, &event);

     SendEventToEventTargetWithOptions(event,
         HIObjectGetEventTarget(HIObjectRef(winId())),
         kEventTargetDontPropagate);

     GetEventParameter(event,
         kEventParamControlOptimalBounds, typeHIRect,
         0, sizeof(HIRect), 0, &optimalBounds);

     ReleaseEvent(event);
     return QSize(optimalBounds.size.width + 100, // make it a bit wider.
                  optimalBounds.size.height);
 }

 SearchWrapper::SearchWrapper(QWidget *parent)
 :QWidget(parent)
 {
     s = new SearchWidget(this);
     s->move(2,2);
     setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
 }

 QSize SearchWrapper::sizeHint() const
 {
     return s->sizeHint() + QSize(6, 4);
 }

 Spacer::Spacer(QWidget *parent)
 :QWidget(parent)
 {
     QSizePolicy sizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
     setSizePolicy(sizePolicy);
 }

 QSize Spacer::sizeHint() const
 {
     return QSize(1, 1);
 }

 MacSplitterHandle::MacSplitterHandle(Qt::Orientation orientation, QSplitter *parent)
 : QSplitterHandle(orientation, parent) {   }

 // Paint the horizontal handle as a gradient, paint
 // the vertical handle as a line.
 void MacSplitterHandle::paintEvent(QPaintEvent *)
 {
     QPainter painter(this);

     QColor topColor(145, 145, 145);
     QColor bottomColor(142, 142, 142);
     QColor gradientStart(252, 252, 252);
     QColor gradientStop(223, 223, 223);

     if (orientation() == Qt::Vertical) {
         painter.setPen(topColor);
         painter.drawLine(0, 0, width(), 0);
         painter.setPen(bottomColor);
         painter.drawLine(0, height() - 1, width(), height() - 1);

         QLinearGradient linearGrad(QPointF(0, 0), QPointF(0, height() -3));
         linearGrad.setColorAt(0, gradientStart);
         linearGrad.setColorAt(1, gradientStop);
         painter.fillRect(QRect(QPoint(0,1), size() - QSize(0, 2)), QBrush(linearGrad));
     } else {
         painter.setPen(topColor);
         painter.drawLine(0, 0, 0, height());
     }
 }

 QSize MacSplitterHandle::sizeHint() const
 {
     QSize parent = QSplitterHandle::sizeHint();
     if (orientation() == Qt::Vertical) {
         return parent + QSize(0, 3);
     } else {
         return QSize(1, parent.height());
     }
 }

 QSplitterHandle *MacSplitter::createHandle()
 {
     return new MacSplitterHandle(orientation(), this);
 }

 MacMainWindow::MacMainWindow()
 {
     QSettings settings;
     restoreGeometry(settings.value("Geometry").toByteArray());

     setWindowTitle("Mac Main Window");

     splitter = new MacSplitter();

     // Set up the left-hand side blue side bar.
     sidebar = new QTreeView();
     sidebar->setFrameStyle(QFrame::NoFrame);
     sidebar->setAttribute(Qt::WA_MacShowFocusRect, false);
     sidebar->setAutoFillBackground(true);

     // Set the palette.
     QPalette palette = sidebar->palette();
     QColor macSidebarColor(231, 237, 246);
     QColor macSidebarHighlightColor(168, 183, 205);
     palette.setColor(QPalette::Base, macSidebarColor);
     palette.setColor(QPalette::Highlight, macSidebarHighlightColor);
     sidebar->setPalette(palette);

     sidebar->setModel(createItemModel());
     sidebar->header()->hide();
     sidebar->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     sidebar->setTextElideMode(Qt::ElideMiddle);

     splitter->addWidget(sidebar);

     horizontalSplitter = new MacSplitter();
     horizontalSplitter->setOrientation(Qt::Vertical);
     splitter->addWidget(horizontalSplitter);

     splitter->setStretchFactor(0, 0);
     splitter->setStretchFactor(1, 1);

     // Set up the top document list view.
     documents = new QListView();
     documents->setFrameStyle(QFrame::NoFrame);
     documents->setAttribute(Qt::WA_MacShowFocusRect, false);
     documents->setModel(createDocumentModel());
     documents->setAlternatingRowColors(true);
     documents->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
     horizontalSplitter->addWidget(documents);
     horizontalSplitter->setStretchFactor(0, 0);

     // Set up the text view.
     textedit = new QTextEdit();
     textedit->setFrameStyle(QFrame::NoFrame);
     textedit->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
     textedit->setText("<br><br><br><br><br><br><center><b>This demo shows how to create a \
                        Qt main window application that has the same appearance as other \
                        Mac OS X applications such as Mail or iTunes. This includes \
                        customizing the item views and QSplitter and wrapping native widgets \
                        such as the search field.</b></center>");

     horizontalSplitter->addWidget(textedit);
     horizontalSplitter->setStretchFactor(1, 1);

     setCentralWidget(splitter);

     toolBar = addToolBar(tr("Search"));
     toolBar->addWidget(new Spacer());
     toolBar->addWidget(new SearchWrapper());

     setUnifiedTitleAndToolBarOnMac(true);
 }

 MacMainWindow::~MacMainWindow()
 {
     QSettings settings;
     settings.setValue("Geometry", saveGeometry());
 }

 QAbstractItemModel *MacMainWindow::createItemModel()
 {
     QStandardItemModel *model = new QStandardItemModel();
     QStandardItem *parentItem = model->invisibleRootItem();

     QStandardItem *documentationItem = new QStandardItem("Documentation");
     parentItem->appendRow(documentationItem);

     QStandardItem *assistantItem = new QStandardItem("Qt MainWindow Manual");
     documentationItem->appendRow(assistantItem);

     QStandardItem *designerItem = new QStandardItem("Qt Designer Manual");
     documentationItem->appendRow(designerItem);

     QStandardItem *qtItem = new QStandardItem("Qt Reference Documentation");
     qtItem->appendRow(new QStandardItem("Classes"));
     qtItem->appendRow(new QStandardItem("Overviews"));
     qtItem->appendRow(new QStandardItem("Tutorial & Examples"));
     documentationItem->appendRow(qtItem);

     QStandardItem *bookmarksItem = new QStandardItem("Bookmarks");
     parentItem->appendRow(bookmarksItem);
     bookmarksItem->appendRow(new QStandardItem("QWidget"));
     bookmarksItem->appendRow(new QStandardItem("QObject"));
     bookmarksItem->appendRow(new QStandardItem("QWizard"));

     return model;
 }

 void MacMainWindow::resizeEvent(QResizeEvent *)
 {
     toolBar->updateGeometry();
 }

 QAbstractItemModel *MacMainWindow::createDocumentModel()
 {
     QStandardItemModel *model = new QStandardItemModel();
     QStandardItem *parentItem = model->invisibleRootItem();
     parentItem->appendRow(new QStandardItem("QWidget Class Reference"));
     parentItem->appendRow(new QStandardItem("QObject Class Reference"));
     parentItem->appendRow(new QStandardItem("QListView Class Reference"));

     return model;
 }

 #endif // Q_WS_MAC