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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.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTABBAR_P_H
#define QTABBAR_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qtabbar.h"
#include "private/qwidget_p.h"
#include <qicon.h>
#include <qtoolbutton.h>
#include <qtimeline.h>
#include <qhash.h>
#include <qdebug.h>
#ifndef QT_NO_TABBAR
#define ANIMATION_DURATION 250
#include <qstyleoption.h>
QT_BEGIN_NAMESPACE
class QTabBarPrivate : public QWidgetPrivate
{
Q_DECLARE_PUBLIC(QTabBar)
public:
QTabBarPrivate()
:currentIndex(-1), pressedIndex(-1),
shape(QTabBar::RoundedNorth),
layoutDirty(false), drawBase(true), scrollOffset(0), expanding(true), closeButtonOnTabs(false), selectionBehaviorOnRemove(QTabBar::SelectRightTab), paintWithOffsets(true), movable(false), dragInProgress(false), documentMode(false) {}
int currentIndex;
int pressedIndex;
QTabBar::Shape shape;
bool layoutDirty;
bool drawBase;
int scrollOffset;
struct Tab {
inline Tab(const QIcon &ico, const QString &txt)
: enabled(true)
, shortcutId(0)
, text(txt)
, icon(ico)
, leftWidget(0)
, rightWidget(0)
, lastTab(-1)
, timeLine(0)
, dragOffset(0)
, hidLeft(false)
, hidRight(false)
{}
bool enabled;
int shortcutId;
QString text;
#ifndef QT_NO_TOOLTIP
QString toolTip;
#endif
#ifndef QT_NO_WHATSTHIS
QString whatsThis;
#endif
QIcon icon;
QRect rect;
QRect minRect;
QRect maxRect;
QColor textColor;
QVariant data;
QWidget *leftWidget;
QWidget *rightWidget;
int lastTab;
QTimeLine *timeLine;
int dragOffset;
QPixmap animatingCache;
bool hidLeft;
bool hidRight;
void makeTimeLine(QWidget *q) {
if (timeLine)
return;
timeLine = new QTimeLine(ANIMATION_DURATION, q);
q->connect(timeLine, SIGNAL(frameChanged(int)), q, SLOT(_q_moveTab(int)));
q->connect(timeLine, SIGNAL(finished()), q, SLOT(_q_moveTabFinished()));
}
void hideWidgets() {
if (!hidRight && rightWidget) {
hidRight = rightWidget->isVisible();
rightWidget->hide();
}
if (!hidLeft && leftWidget) {
hidLeft = leftWidget->isVisible();
leftWidget->hide();
}
}
void unHideWidgets() {
if (leftWidget && hidLeft)
leftWidget->show();
hidLeft = false;
if (rightWidget && hidRight)
rightWidget->show();
hidRight = false;
}
};
QList<Tab> tabList;
QHash<QTimeLine*, int> animations;
int calculateNewPosition(int from, int to, int index) const;
void slide(int from, int to);
void init();
int extraWidth() const;
Tab *at(int index);
const Tab *at(int index) const;
int indexAtPos(const QPoint &p) const;
inline bool validIndex(int index) const { return index >= 0 && index < tabList.count(); }
QSize minimumTabSizeHint(int index);
QToolButton* rightB; // right or bottom
QToolButton* leftB; // left or top
void _q_scrollTabs();
void _q_closeTab();
void _q_moveTab(int);
void _q_moveTabFinished();
void _q_moveTabFinished(int offset);
QRect hoverRect;
void grabCache(int start, int end, bool unhide);
void refresh();
void layoutTabs();
void layoutWidgets(int index = -1);
void layoutTab(int index);
void updateMacBorderMetrics();
void makeVisible(int index);
QSize iconSize;
Qt::TextElideMode elideMode;
bool useScrollButtons;
bool expanding;
bool closeButtonOnTabs;
QTabBar::SelectionBehavior selectionBehaviorOnRemove;
QPoint dragStartPosition;
bool paintWithOffsets;
bool movable;
bool dragInProgress;
bool documentMode;
// shared by tabwidget and qtabbar
static void initStyleBaseOption(QStyleOptionTabBarBaseV2 *optTabBase, QTabBar *tabbar, QSize size)
{
QStyleOptionTab tabOverlap;
tabOverlap.shape = tabbar->shape();
int overlap = tabbar->style()->pixelMetric(QStyle::PM_TabBarBaseOverlap, &tabOverlap, tabbar);
QWidget *theParent = tabbar->parentWidget();
optTabBase->init(tabbar);
optTabBase->shape = tabbar->shape();
optTabBase->documentMode = tabbar->documentMode();
if (theParent && overlap > 0) {
QRect rect;
switch (tabOverlap.shape) {
case QTabBar::RoundedNorth:
case QTabBar::TriangularNorth:
rect.setRect(0, size.height()-overlap, size.width(), overlap);
break;
case QTabBar::RoundedSouth:
case QTabBar::TriangularSouth:
rect.setRect(0, 0, size.width(), overlap);
break;
case QTabBar::RoundedEast:
case QTabBar::TriangularEast:
rect.setRect(0, 0, overlap, size.height());
break;
case QTabBar::RoundedWest:
case QTabBar::TriangularWest:
rect.setRect(size.width() - overlap, 0, overlap, size.height());
break;
}
optTabBase->rect = rect;
}
}
};
class CloseButton : public QAbstractButton
{
Q_OBJECT
public:
CloseButton(QWidget *parent = 0);
QSize sizeHint() const;
inline QSize minimumSizeHint() const
{ return sizeHint(); }
void enterEvent(QEvent *event);
void leaveEvent(QEvent *event);
void paintEvent(QPaintEvent *event);
};
QT_END_NAMESPACE
#endif
#endif
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