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#include "q3toolbar.h"

#ifndef QT_NO_TOOLBAR

#include "q3mainwindow.h"

#include "qapplication.h"

#include "q3combobox.h"

#include "qcursor.h"

#include "qdesktopwidget.h"

#include "qdrawutil.h"

#include "qevent.h"

#include "qframe.h"

#include "qlayout.h"

#include "qmap.h"

#include "qpainter.h"

#include "q3popupmenu.h"

#include "qstyle.h"

#include "qstyleoption.h"

#include "qtimer.h"

#include "qtoolbutton.h"

#include "qtooltip.h"

QT_BEGIN_NAMESPACE

static const char * const arrow_v_xpm[] = {

    "7 9 3 1",

    "            c None",

    ".            c #000000",

    "+            c none",

    ".+++++.",

    "..+++..",

    "+..+..+",

    "++...++",

    ".++.++.",

    "..+++..",

    "+..+..+",

    "++...++",

    "+++.+++"};

static const char * const arrow_h_xpm[] = {

    "9 7 3 1",

    "            c None",

    ".            c #000000",

    "+            c none",

    "..++..+++",

    "+..++..++",

    "++..++..+",

    "+++..++..",

    "++..++..+",

    "+..++..++",

    "..++..+++"};

class Q3ToolBarExtensionWidget;

class Q3ToolBarPrivate

{

public:

    Q3ToolBarPrivate() : moving(false), checkingExtension(false) {

    }

    bool moving;

    bool checkingExtension;

    Q3ToolBarExtensionWidget *extension;

    Q3PopupMenu *extensionPopup;

    QMap<QAction *, QWidget *> actions;

};

class Q3ToolBarSeparator : public QWidget

{

    Q_OBJECT

public:

    Q3ToolBarSeparator(Qt::Orientation, Q3ToolBar *parent, const char* name=0);

    QSize sizeHint() const;

    Qt::Orientation orientation() const { return orient; }

public slots:

    void setOrientation(Qt::Orientation);

protected:

    void changeEvent(QEvent *);

    void paintEvent(QPaintEvent *);

private:

    Qt::Orientation orient;

};

class Q3ToolBarExtensionWidget : public QWidget

{

    Q_OBJECT

public:

    Q3ToolBarExtensionWidget(QWidget *w);

    void setOrientation(Qt::Orientation o);

    QToolButton *button() const { return tb; }

protected:

    void resizeEvent(QResizeEvent *e) {

        QWidget::resizeEvent(e);

        layOut();

    }

private:

    void layOut();

    QToolButton *tb;

    Qt::Orientation orient;

};

Q3ToolBarExtensionWidget::Q3ToolBarExtensionWidget(QWidget *w)

    : QWidget(w, "qt_dockwidget_internal")

{

    tb = new QToolButton(this, "qt_toolbar_ext_button");

    tb->setAutoRaise(true);

    setOrientation(Qt::Horizontal);

    setAutoFillBackground(true);

}

void Q3ToolBarExtensionWidget::setOrientation(Qt::Orientation o)

{

    orient = o;

    if (orient == Qt::Horizontal)

        tb->setIcon(QPixmap((const char **)arrow_h_xpm));

    else

        tb->setIcon(QPixmap((const char **)arrow_v_xpm));

    layOut();

}

void Q3ToolBarExtensionWidget::layOut()

{

    tb->setGeometry(2, 2, width() - 4, height() - 4);

}

Q3ToolBarSeparator::Q3ToolBarSeparator(Qt::Orientation o , Q3ToolBar *parent,

                                     const char* name)

    : QWidget(parent, name)

{

    connect(parent, SIGNAL(orientationChanged(Qt::Orientation)),

             this, SLOT(setOrientation(Qt::Orientation)));

    setOrientation(o);

    setSizePolicy(QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum));

}

void Q3ToolBarSeparator::setOrientation(Qt::Orientation o)

{

    orient = o;

}

void Q3ToolBarSeparator::changeEvent(QEvent *ev)

{

    if(ev->type() == QEvent::StyleChange)

        setOrientation(orient);

    QWidget::changeEvent(ev);

}

static QStyleOption getStyleOption(const Q3ToolBarSeparator *tbs)

{

    QStyleOption opt(0);

    opt.rect = tbs->rect();

    opt.palette = tbs->palette();

    if (tbs->orientation() == Qt::Horizontal)

        opt.state = QStyle::State_Horizontal;

    else

        opt.state = QStyle::State_None;

    return opt;

}

QSize Q3ToolBarSeparator::sizeHint() const

{

    QStyleOption opt = getStyleOption(this);

    int extent = style()->pixelMetric(QStyle::PM_ToolBarSeparatorExtent, &opt, this);

    if (orient == Qt::Horizontal)

        return QSize(extent, 0);

    else

        return QSize(0, extent);

}

void Q3ToolBarSeparator::paintEvent(QPaintEvent *)

{

    QPainter p(this);

    QStyleOption opt = getStyleOption(this);

    style()->drawPrimitive(QStyle::PE_Q3DockWindowSeparator, &opt, &p, this);

}

QT_BEGIN_INCLUDE_NAMESPACE

#include "q3toolbar.moc"

QT_END_INCLUDE_NAMESPACE

/*!

    \class Q3ToolBar

    \brief The Q3ToolBar class provides a movable panel containing

    widgets such as tool buttons.

    \compat

    A toolbar is a panel that contains a set of controls, usually

    represented by small icons. It's purpose is to provide quick

    access to frequently used commands or options. Within a

    Q3MainWindow the user can drag toolbars within and between the

    \link Q3DockArea dock areas\endlink. Toolbars can also be dragged

    out of any dock area to float freely as top-level windows.

    Q3ToolBar is a specialization of QDockWindow, and so provides all

    the functionality of a QDockWindow.

    To use Q3ToolBar you simply create a Q3ToolBar as a child of a

    Q3MainWindow, create a number of QToolButton widgets (or other

    widgets) in left to right (or top to bottom) order and call

    addSeparator() when you want a separator. When a toolbar is

    floated the caption used is the label given in the constructor

    call. This can be changed with setLabel().

    You may use most widgets within a toolbar, with QToolButton and

    QComboBox being the most common. But note that the toolbar's

    actions must be \l {Q3Action}s.

    If you create a new widget on an already visible Q3ToolBar, this

    widget will automatically become visible without needing a show()

    call. (This differs from every other Qt widget container. We

    recommend calling show() anyway since we hope to fix this anomaly

    in a future release.)

    Q3ToolBars, like QDockWindows, are located in \l{Q3DockArea}s or

    float as top-level windows. Q3MainWindow provides four Q3DockAreas

    (top, left, right and bottom). When you create a new toolbar (as

    in the example above) as a child of a Q3MainWindow the toolbar will

    be added to the top dock area. You can move it to another dock

    area (or float it) by calling Q3MainWindow::moveDockWindow(). Dock

    areas lay out their windows in lines.

    If the main window is resized so that the area occupied by the

    toolbar is too small to show all its widgets a little arrow button

    (which looks like a right-pointing chevron, '»') will appear

    at the right or bottom of the toolbar depending on its

    orientation. Clicking this button pops up a menu that shows the

    'overflowing' items. QToolButtons are represented in the menu using

    their textLabel property, other QAbstractButton subclasses are represented

    using their text property, and QComboBoxes are represented as submenus,

    with the caption text being used in the submenu item.

    Usually a toolbar will get precisely the space it needs. However,

    with setHorizontalStretchable(), setVerticalStretchable() or

    setStretchableWidget() you can tell the main window to expand the

    toolbar to fill all available space in the specified orientation.

    The toolbar arranges its buttons either horizontally or vertically

    (see orientation() for details). Generally, Q3DockArea will set the

    orientation correctly for you, but you can set it yourself with

    setOrientation() and track any changes by connecting to the

    orientationChanged() signal.

    You can use the clear() method to remove all items from a toolbar.

    \img qdockwindow.png Toolbar (dock window)

    \caption A floating QToolbar (dock window)

    \sa QToolButton Q3MainWindow

*/

/*!

    Constructs an empty toolbar.

    The toolbar is called \a name and is a child of \a parent and is

    managed by \a parent. It is initially located in dock area \a dock

    and is labeled \a label. If \a newLine is true the toolbar will be

    placed on a new line in the dock area.

*/

Q3ToolBar::Q3ToolBar(const QString &label,

                    Q3MainWindow * parent, Qt::ToolBarDock dock,

                    bool newLine, const char * name)

    : Q3DockWindow(InDock, parent, name, 0, true)

{

    mw = parent;

    init();

    if (parent)

        parent->addToolBar(this, label, dock, newLine);

}

/*!

    Constructs an empty horizontal toolbar.

    The toolbar is called \a name and is a child of \a parent and is

    managed by \a mainWindow. The \a label and \a newLine parameters

    are passed straight to Q3MainWindow::addDockWindow(). \a name and

    the widget flags \a f are passed on to the Q3DockWindow constructor.

    Use this constructor if you want to create torn-off (undocked,

    floating) toolbars or toolbars in the \link QStatusBar status

    bar\endlink.

*/

Q3ToolBar::Q3ToolBar(const QString &label, Q3MainWindow * mainWindow,

                    QWidget * parent, bool newLine, const char * name,

                    Qt::WindowFlags f)

    : Q3DockWindow(InDock, parent, name, f, true)

{

    mw = mainWindow;

    init();

    setParent(parent);

    if (mainWindow)

        mainWindow->addToolBar(this, label, Qt::DockUnmanaged, newLine);

}

/*!

    \overload

    Constructs an empty toolbar called \a name, with parent \a parent,

    in its \a parent's top dock area, without any label and without

    requiring a newline.

*/

Q3ToolBar::Q3ToolBar(Q3MainWindow * parent, const char * name)

    : Q3DockWindow(InDock, parent, name, 0, true)

{

    mw = parent;

    init();

    if (parent)

        parent->addToolBar(this, QString(), Qt::DockTop);

}

/*!

    \internal

  Common initialization code. Requires that \c mw and \c o are set.

  Does not call Q3MainWindow::addDockWindow().

*/

void Q3ToolBar::init()

{

    d = new Q3ToolBarPrivate;

    d->extension = 0;

    d->extensionPopup = 0;

    sw = 0;

    setBackgroundRole(QPalette::Button);

    setFocusPolicy(Qt::NoFocus);

    setFrameStyle(QFrame::ToolBarPanel | QFrame::Raised);

}

/*!

    Destructor.

*/

Q3ToolBar::~Q3ToolBar()

{

    delete d;

}

/*!

    \reimp

*/

void Q3ToolBar::setOrientation(Qt::Orientation o)

{

    Q3DockWindow::setOrientation(o);

    if (d->extension)

        d->extension->setOrientation(o);

    QObjectList childList = children();

    for (int i = 0; i < childList.size(); ++i) {

        Q3ToolBarSeparator* w = qobject_cast<Q3ToolBarSeparator*>(childList.at(i));

        if (w)

            w->setOrientation(o);

    }

}

/*!

    Adds a separator to the right/bottom of the toolbar.

*/

void Q3ToolBar::addSeparator()

{

    (void) new Q3ToolBarSeparator(orientation(), this, "toolbar separator");

}

/*!

  \internal

*/

void Q3ToolBar::styleChange(QStyle &oldStyle)

{

    Q3DockWindow::styleChange(oldStyle);

}

/*!

    \reimp

*/

void Q3ToolBar::setVisible(bool visible)

{

    Q3DockWindow::setVisible(visible);

    if (mw)

        mw->triggerLayout(false);

    if (visible)

        checkForExtension(size());

}

/*!

    Returns a pointer to the Q3MainWindow which manages this toolbar.

*/

Q3MainWindow * Q3ToolBar::mainWindow() const

{

    return mw;

}

/*!

    Sets the widget \a w to be expanded if this toolbar is requested

    to stretch.

    The request to stretch might occur because Q3MainWindow

    right-justifies the dock area the toolbar is in, or because this

    toolbar's isVerticalStretchable() or isHorizontalStretchable() is

    set to true.

    If you call this function and the toolbar is not yet stretchable,

    setStretchable() is called.

    \sa Q3MainWindow::setRightJustification(), setVerticalStretchable(),

    setHorizontalStretchable()

*/

void Q3ToolBar::setStretchableWidget(QWidget * w)

{

    sw = w;

    boxLayout()->setStretchFactor(w, 1);

    if (!isHorizontalStretchable() && !isVerticalStretchable()) {

        if (orientation() == Qt::Horizontal)

            setHorizontalStretchable(true);

        else

            setVerticalStretchable(true);

    }

}

/*!

    \reimp

*/

bool Q3ToolBar::event(QEvent * e)

{

    bool r =  Q3DockWindow::event(e);

    // After the event filters have dealt with it, do our stuff.

    if (e->type() == QEvent::ChildInserted) {

        QObject * child = ((QChildEvent*)e)->child();

        if (child && child->isWidgetType() && !((QWidget*)child)->isWindow()

             && child->parent() == this

            && QLatin1String("qt_dockwidget_internal") != child->objectName()) {

            boxLayout()->addWidget((QWidget*)child);

            QLayoutItem *item = boxLayout()->itemAt(boxLayout()->indexOf((QWidget*)child));

            if (QToolButton *button = qobject_cast<QToolButton*>(child)) {

                item->setAlignment(Qt::AlignHCenter);

                button->setFocusPolicy(Qt::NoFocus);

                if (mw) {

                    QObject::connect(mw, SIGNAL(pixmapSizeChanged(bool)),

                                     button, SLOT(setUsesBigPixmap(bool)));

                    button->setUsesBigPixmap(mw->usesBigPixmaps());

                    QObject::connect(mw, SIGNAL(usesTextLabelChanged(bool)),

                                     child, SLOT(setUsesTextLabel(bool)));

                    button->setUsesTextLabel(mw->usesTextLabel());

                }

                button->setAutoRaise(true);

            }

            if (isVisible()) {

                // toolbar compatibility: we auto show widgets that

                // are not explicitly hidden

                if (((QWidget*)child)->testAttribute(Qt::WA_WState_Hidden)

                    && !((QWidget*)child)->testAttribute(Qt::WA_WState_ExplicitShowHide))

                    ((QWidget*)child)->show();

                checkForExtension(size());

            }

        }

        if (child && child->isWidgetType() && ((QWidget*)child) == sw)

            boxLayout()->setStretchFactor((QWidget*)child, 1);

    } else if (e->type() == QEvent::Show) {

        layout()->activate();

    } else if (e->type() == QEvent::LayoutHint && place() == OutsideDock) {

        adjustSize();