Long live Qt 4.5!

1 files changed, 645 insertions, 0 deletions

diff --git a/src/qt3support/widgets/q3titlebar.cpp b/src/qt3support/widgets/q3titlebar.cpp
new file mode 100644
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+++ b/src/qt3support/widgets/q3titlebar.cpp
@@ -0,0 +1,645 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support 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 "qplatformdefs.h"
+
+#ifndef QT_NO_TITLEBAR
+
+#include "qapplication.h"
+#include "qcursor.h"
+#include "qdatetime.h"
+#include "qevent.h"
+#include "qimage.h"
+#include "qpainter.h"
+#include "qiodevice.h"
+#include "qpixmap.h"
+#include "qstyle.h"
+#include "qstyleoption.h"
+#include "qtimer.h"
+#include "qtooltip.h"
+#include "qdebug.h"
+#if defined(Q_WS_WIN)
+#include "qt_windows.h"
+#endif
+
+#include "private/qapplication_p.h"
+#include "private/q3titlebar_p.h"
+#include "private/qwidget_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q3TitleBarPrivate : public QWidgetPrivate
+{
+    Q_DECLARE_PUBLIC(Q3TitleBar)
+public:
+    Q3TitleBarPrivate()
+        : toolTip(0), act(0), window(0), movable(1), pressed(0), autoraise(0), inevent(0)
+    {
+    }
+
+    Qt::WindowFlags flags;
+    QStyle::SubControl buttonDown;
+    QPoint moveOffset;
+    QToolTip *toolTip;
+    bool act                    :1;
+    QWidget* window;
+    bool movable            :1;
+    bool pressed            :1;
+    bool autoraise          :1;
+    bool inevent : 1;
+
+    int titleBarState() const;
+    QStyleOptionTitleBar getStyleOption() const;
+    void readColors();
+};
+
+inline int Q3TitleBarPrivate::titleBarState() const
+{
+    uint state = window ? window->windowState() : static_cast<Qt::WindowStates>(Qt::WindowNoState);
+    state |= uint(act ? QStyle::State_Active : QStyle::State_None);
+    return (int)state;
+}
+
+QStyleOptionTitleBar Q3TitleBarPrivate::getStyleOption() const
+{
+    Q_Q(const Q3TitleBar);
+    QStyleOptionTitleBar opt;
+    opt.init(q);
+    opt.text = q->windowTitle();
+    //################
+    QIcon icon = q->windowIcon();
+    QSize s = icon.actualSize(QSize(64, 64));
+    opt.icon = icon.pixmap(s);
+    opt.subControls = QStyle::SC_All;
+    opt.activeSubControls = QStyle::SC_None;
+    opt.titleBarState = titleBarState();
+    opt.titleBarFlags = flags;
+    return opt;
+}
+
+Q3TitleBar::Q3TitleBar(QWidget *w, QWidget *parent, Qt::WindowFlags f)
+    : QWidget(*new Q3TitleBarPrivate, parent, Qt::WStyle_Customize | Qt::WStyle_NoBorder)
+{
+    Q_D(Q3TitleBar);
+    if (f == 0 && w)
+        f = w->windowFlags();
+    d->flags = f;
+    d->window = w;
+    d->buttonDown = QStyle::SC_None;
+    d->act = 0;
+    if (w) {
+        if (w->minimumSize() == w->maximumSize())
+            d->flags &= ~Qt::WindowMaximizeButtonHint;
+        setWindowTitle(w->windowTitle());
+    }
+
+    d->readColors();
+    setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
+    setMouseTracking(true);
+    setAutoRaise(style()->styleHint(QStyle::SH_TitleBar_AutoRaise, 0, this));
+}
+
+void Q3TitleBar::setFakeWindowFlags(Qt::WindowFlags f)
+{
+    Q_D(Q3TitleBar);
+    d->flags = f;
+}
+
+Qt::WindowFlags Q3TitleBar::fakeWindowFlags() const
+{
+    Q_D(const Q3TitleBar);
+    return d->flags;
+}
+
+Q3TitleBar::~Q3TitleBar()
+{
+}
+
+QStyleOptionTitleBar Q3TitleBar::getStyleOption() const
+{
+    return d_func()->getStyleOption();
+}
+
+#ifdef Q_WS_WIN
+static inline QRgb colorref2qrgb(COLORREF col)
+{
+    return qRgb(GetRValue(col),GetGValue(col),GetBValue(col));
+}
+#endif
+
+void Q3TitleBarPrivate::readColors()
+{
+    Q_Q(Q3TitleBar);
+    QPalette pal = q->palette();
+
+    bool colorsInitialized = false;
+
+#ifdef Q_WS_WIN // ask system properties on windows
+#ifndef SPI_GETGRADIENTCAPTIONS
+#define SPI_GETGRADIENTCAPTIONS 0x1008
+#endif
+#ifndef COLOR_GRADIENTACTIVECAPTION
+#define COLOR_GRADIENTACTIVECAPTION 27
+#endif
+#ifndef COLOR_GRADIENTINACTIVECAPTION
+#define COLOR_GRADIENTINACTIVECAPTION 28
+#endif
+    if (QApplication::desktopSettingsAware()) {
+        pal.setColor(QPalette::Active, QPalette::Highlight, colorref2qrgb(GetSysColor(COLOR_ACTIVECAPTION)));
+        pal.setColor(QPalette::Inactive, QPalette::Highlight, colorref2qrgb(GetSysColor(COLOR_INACTIVECAPTION)));
+        pal.setColor(QPalette::Active, QPalette::HighlightedText, colorref2qrgb(GetSysColor(COLOR_CAPTIONTEXT)));
+        pal.setColor(QPalette::Inactive, QPalette::HighlightedText, colorref2qrgb(GetSysColor(COLOR_INACTIVECAPTIONTEXT)));
+        if (QSysInfo::WindowsVersion != QSysInfo::WV_95 && QSysInfo::WindowsVersion != QSysInfo::WV_NT) {
+            colorsInitialized = true;
+            BOOL gradient;
+            QT_WA({
+                SystemParametersInfo(SPI_GETGRADIENTCAPTIONS, 0, &gradient, 0);
+            } , {
+                SystemParametersInfoA(SPI_GETGRADIENTCAPTIONS, 0, &gradient, 0);
+            });
+            if (gradient) {
+                pal.setColor(QPalette::Active, QPalette::Base, colorref2qrgb(GetSysColor(COLOR_GRADIENTACTIVECAPTION)));
+                pal.setColor(QPalette::Inactive, QPalette::Base, colorref2qrgb(GetSysColor(COLOR_GRADIENTINACTIVECAPTION)));
+            } else {
+                pal.setColor(QPalette::Active, QPalette::Base, pal.color(QPalette::Active, QPalette::Highlight));
+                pal.setColor(QPalette::Inactive, QPalette::Base, pal.color(QPalette::Inactive, QPalette::Highlight));
+            }
+        }
+    }
+#endif // Q_WS_WIN
+    if (!colorsInitialized) {
+        pal.setColor(QPalette::Active, QPalette::Highlight,
+                      pal.color(QPalette::Active, QPalette::Highlight));
+        pal.setColor(QPalette::Active, QPalette::Base,
+                      pal.color(QPalette::Active, QPalette::Highlight));
+        pal.setColor(QPalette::Inactive, QPalette::Highlight,
+                      pal.color(QPalette::Inactive, QPalette::Dark));
+        pal.setColor(QPalette::Inactive, QPalette::Base,
+                      pal.color(QPalette::Inactive, QPalette::Dark));
+        pal.setColor(QPalette::Inactive, QPalette::HighlightedText,
+                      pal.color(QPalette::Inactive, QPalette::Window));
+    }
+
+    q->setPalette(pal);
+    q->setActive(act);
+}
+
+void Q3TitleBar::changeEvent(QEvent *ev)
+{
+    if(ev->type() == QEvent::ModifiedChange)
+        update();
+    QWidget::changeEvent(ev);
+}
+
+void Q3TitleBar::mousePressEvent(QMouseEvent *e)
+{
+    Q_D(Q3TitleBar);
+    if (!d->act)
+        emit doActivate();
+    if (e->button() == Qt::LeftButton) {
+        d->pressed = true;
+        QStyleOptionTitleBar opt = d->getStyleOption();
+        QStyle::SubControl ctrl = style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt,
+                                                                 e->pos(), this);
+        switch (ctrl) {
+        case QStyle::SC_TitleBarSysMenu:
+            if (d->flags & Qt::WindowSystemMenuHint) {
+                d->buttonDown = QStyle::SC_None;
+                static QTime *t = 0;
+                static Q3TitleBar *tc = 0;
+                if (!t)
+                    t = new QTime;
+                if (tc != this || t->elapsed() > QApplication::doubleClickInterval()) {
+                    emit showOperationMenu();
+                    t->start();
+                    tc = this;
+                } else {
+                    tc = 0;
+                    emit doClose();
+                    return;
+                }
+            }
+            break;
+
+        case QStyle::SC_TitleBarShadeButton:
+        case QStyle::SC_TitleBarUnshadeButton:
+            if (d->flags & Qt::WindowShadeButtonHint)
+                d->buttonDown = ctrl;
+            break;
+
+        case QStyle::SC_TitleBarNormalButton:
+            if (d->flags & Qt::WindowMinMaxButtonsHint)
+                d->buttonDown = ctrl;
+            break;
+
+        case QStyle::SC_TitleBarMinButton:
+            if (d->flags & Qt::WindowMinimizeButtonHint)
+                d->buttonDown = ctrl;
+            break;
+
+        case QStyle::SC_TitleBarMaxButton:
+            if (d->flags & Qt::WindowMaximizeButtonHint)
+                d->buttonDown = ctrl;
+            break;
+
+        case QStyle::SC_TitleBarCloseButton:
+            if (d->flags & Qt::WindowSystemMenuHint)
+                d->buttonDown = ctrl;
+            break;
+
+        case QStyle::SC_TitleBarLabel:
+            d->buttonDown = ctrl;
+            d->moveOffset = mapToParent(e->pos());
+            break;
+
+        default:
+            break;
+        }
+        repaint();
+    } else {
+        d->pressed = false;
+    }
+}
+
+void Q3TitleBar::contextMenuEvent(QContextMenuEvent *e)
+{
+    Q_D(Q3TitleBar);
+    QStyleOptionTitleBar opt = d->getStyleOption();
+    QStyle::SubControl ctrl = style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt, e->pos(),
+                                                             this);
+    if(ctrl == QStyle::SC_TitleBarLabel || ctrl == QStyle::SC_TitleBarSysMenu) {
+        e->accept();
+        emit popupOperationMenu(e->globalPos());
+    } else {
+        e->ignore();
+    }
+}
+
+void Q3TitleBar::mouseReleaseEvent(QMouseEvent *e)
+{
+    Q_D(Q3TitleBar);
+    if (e->button() == Qt::LeftButton && d->pressed) {
+        e->accept();
+        QStyleOptionTitleBar opt = d->getStyleOption();
+        QStyle::SubControl ctrl = style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt,
+                                                                 e->pos(), this);
+        d->pressed = false;
+        if (ctrl == d->buttonDown) {
+            d->buttonDown = QStyle::SC_None;
+            repaint();
+            switch(ctrl) {
+            case QStyle::SC_TitleBarShadeButton:
+            case QStyle::SC_TitleBarUnshadeButton:
+                if(d->flags & Qt::WindowShadeButtonHint)
+                    emit doShade();
+                break;
+
+            case QStyle::SC_TitleBarNormalButton:
+                if(d->flags & Qt::WindowMaximizeButtonHint)
+                    emit doNormal();
+                break;
+
+            case QStyle::SC_TitleBarMinButton:
+                if(d->flags & Qt::WindowMinimizeButtonHint) {
+                    if (d->window && d->window->isMinimized())
+                        emit doNormal();
+                    else
+                        emit doMinimize();
+                }
+                break;
+
+            case QStyle::SC_TitleBarMaxButton:
+                if(d->flags & Qt::WindowMaximizeButtonHint) {
+                    if(d->window && d->window->isMaximized())
+                        emit doNormal();
+                    else
+                        emit doMaximize();
+                }
+                break;
+
+            case QStyle::SC_TitleBarCloseButton:
+                if(d->flags & Qt::WindowSystemMenuHint) {
+                    d->buttonDown = QStyle::SC_None;
+                    repaint();
+                    emit doClose();
+                    return;
+                }
+                break;
+
+            default:
+                break;
+            }
+        }
+    } else {
+        e->ignore();
+    }
+}
+
+void Q3TitleBar::mouseMoveEvent(QMouseEvent *e)
+{
+    Q_D(Q3TitleBar);
+    e->accept();
+    switch (d->buttonDown) {
+    case QStyle::SC_None:
+        if(autoRaise())
+            repaint();
+        break;
+    case QStyle::SC_TitleBarSysMenu:
+        break;
+    case QStyle::SC_TitleBarShadeButton:
+    case QStyle::SC_TitleBarUnshadeButton:
+    case QStyle::SC_TitleBarNormalButton:
+    case QStyle::SC_TitleBarMinButton:
+    case QStyle::SC_TitleBarMaxButton:
+    case QStyle::SC_TitleBarCloseButton:
+        {
+            QStyle::SubControl last_ctrl = d->buttonDown;
+            QStyleOptionTitleBar opt = d->getStyleOption();
+            d->buttonDown = style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt, e->pos(), this);
+            if (d->buttonDown != last_ctrl)
+                d->buttonDown = QStyle::SC_None;
+            repaint();
+            d->buttonDown = last_ctrl;
+        }
+        break;
+
+    case QStyle::SC_TitleBarLabel:
+        if (d->buttonDown == QStyle::SC_TitleBarLabel && d->movable && d->pressed) {
+            if ((d->moveOffset - mapToParent(e->pos())).manhattanLength() >= 4) {
+                QPoint p = mapFromGlobal(e->globalPos());
+
+                QWidget *parent = d->window ? d->window->parentWidget() : 0;
+                if(parent && parent->inherits("Q3WorkspaceChild")) {
+                    QWidget *workspace = parent->parentWidget();
+                    p = workspace->mapFromGlobal(e->globalPos());
+                    if (!workspace->rect().contains(p)) {
+                        if (p.x() < 0)
+                            p.rx() = 0;
+                        if (p.y() < 0)
+                            p.ry() = 0;
+                        if (p.x() > workspace->width())
+                            p.rx() = workspace->width();
+                        if (p.y() > workspace->height())
+                            p.ry() = workspace->height();
+                    }
+                }
+
+                QPoint pp = p - d->moveOffset;
+                if (!parentWidget()->isMaximized())
+                    parentWidget()->move(pp);
+            }
+        } else {
+            QStyle::SubControl last_ctrl = d->buttonDown;
+            d->buttonDown = QStyle::SC_None;
+            if(d->buttonDown != last_ctrl)
+                repaint();
+        }
+        break;
+    default:
+        break;
+    }
+}
+
+void Q3TitleBar::resizeEvent(QResizeEvent *r)
+{
+    QWidget::resizeEvent(r);
+    cutText();
+}
+
+bool Q3TitleBar::isTool() const
+{
+    return (d_func()->flags & Qt::WindowType_Mask) == Qt::Tool;
+}
+
+void Q3TitleBar::paintEvent(QPaintEvent *)
+{
+    Q_D(Q3TitleBar);
+    QStyleOptionTitleBar opt = d->getStyleOption();
+    opt.subControls = QStyle::SC_TitleBarLabel;
+    opt.activeSubControls = d->buttonDown;
+    if (d->flags & Qt::WindowSystemMenuHint) {
+        opt.subControls |= QStyle::SC_TitleBarSysMenu | QStyle::SC_TitleBarCloseButton;
+        if (d->window && (d->flags & Qt::WindowShadeButtonHint)) {
+            if (d->window->isMinimized())
+                opt.subControls |= QStyle::SC_TitleBarUnshadeButton;
+            else
+                opt.subControls |= QStyle::SC_TitleBarShadeButton;
+        }
+        if (d->window && (d->flags & Qt::WindowMinMaxButtonsHint)) {
+            if(d->window && d->window->isMinimized())
+                opt.subControls |= QStyle::SC_TitleBarNormalButton;
+            else
+                opt.subControls |= QStyle::SC_TitleBarMinButton;
+        }
+        if (d->window && (d->flags & Qt::WindowMaximizeButtonHint) && !d->window->isMaximized())
+            opt.subControls |= QStyle::SC_TitleBarMaxButton;
+    }
+    QStyle::SubControl under_mouse = QStyle::SC_None;
+    
+    if (underMouse()) {
+        under_mouse = style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt,
+                                                     mapFromGlobal(QCursor::pos()), this);
+        opt.activeSubControls |= under_mouse;
+        if (d->pressed)
+            opt.state |= QStyle::State_Sunken;
+        else if(autoRaise())
+            opt.state |= QStyle::State_MouseOver;
+    }
+    
+    opt.palette.setCurrentColorGroup(usesActiveColor() ? QPalette::Active : QPalette::Inactive);
+
+    QPainter p(this);
+    if (!windowTitle().isEmpty())
+        opt.titleBarFlags |= Qt::WindowTitleHint;
+    style()->drawComplexControl(QStyle::CC_TitleBar, &opt, &p, this);
+}
+
+void Q3TitleBar::mouseDoubleClickEvent(QMouseEvent *e)
+{
+    Q_D(Q3TitleBar);
+    if (e->button() != Qt::LeftButton) {
+        e->ignore();
+        return;
+    }
+    e->accept();
+    QStyleOptionTitleBar opt = d->getStyleOption();
+    switch (style()->hitTestComplexControl(QStyle::CC_TitleBar, &opt, e->pos(), this)) {
+    case QStyle::SC_TitleBarLabel:
+        emit doubleClicked();
+        break;
+
+    case QStyle::SC_TitleBarSysMenu:
+        if (d->flags & Qt::WStyle_SysMenu)
+            emit doClose();
+        break;
+
+    default:
+        break;
+    }
+}
+
+void Q3TitleBar::cutText()
+{
+    Q_D(Q3TitleBar);
+    QFontMetrics fm(font());
+    QStyleOptionTitleBar opt = d->getStyleOption();
+    int maxw = style()->subControlRect(QStyle::CC_TitleBar, &opt, QStyle::SC_TitleBarLabel,
+                                       this).width();
+    if (!d->window)
+        return;
+
+    QString txt = d->window->windowTitle();
+    if (style()->styleHint(QStyle::SH_TitleBar_ModifyNotification, 0, this) && d->window
+        && d->window->isWindowModified())
+        txt += QLatin1String(" *");
+
+    QString cuttext = txt;
+    if (fm.width(txt + QLatin1Char('m')) > maxw) {
+        int i = txt.length();
+        int dotlength = fm.width(QLatin1String("..."));
+        while (i>0 && fm.width(txt.left(i)) + dotlength > maxw)
+            i--;
+        if(i != (int)txt.length())
+            cuttext = txt.left(i) + QLatin1String("...");
+    }
+
+    setWindowTitle(cuttext);
+}
+
+
+void Q3TitleBar::leaveEvent(QEvent *)
+{
+    if(autoRaise() && !d_func()->pressed)
+        repaint();
+}
+
+void Q3TitleBar::enterEvent(QEvent *)
+{
+    if(autoRaise() && !d_func()->pressed)
+        repaint();
+    QEvent e(QEvent::Leave);
+    QApplication::sendEvent(parentWidget(), &e);
+}
+
+void Q3TitleBar::setActive(bool active)
+{
+    Q_D(Q3TitleBar);
+    if (d->act == active)
+        return ;
+
+    d->act = active;
+    update();
+}
+
+bool Q3TitleBar::isActive() const
+{
+    return d_func()->act;
+}
+
+bool Q3TitleBar::usesActiveColor() const
+{
+    return (isActive() && isActiveWindow()) ||
+        (!window() && QWidget::window()->isActiveWindow());
+}
+
+QWidget *Q3TitleBar::window() const
+{
+    return d_func()->window;
+}
+
+bool Q3TitleBar::event(QEvent *e)
+{
+    Q_D(Q3TitleBar);
+    if (d->inevent)
+        return QWidget::event(e);
+    d->inevent = true;
+    if (e->type() == QEvent::ApplicationPaletteChange) {
+        d->readColors();
+        return true;
+    } else if (e->type() == QEvent::WindowActivate) {
+        setActive(d->act);
+    } else if (e->type() == QEvent::WindowDeactivate) {
+        bool wasActive = d->act;
+        setActive(false);
+        d->act = wasActive;
+    } else if (e->type() == QEvent::WindowIconChange) {
+        update();
+    } else if (e->type() == QEvent::WindowTitleChange) {
+        cutText();
+        update();
+    }
+
+    d->inevent = false;
+    return QWidget::event(e);
+}
+
+void Q3TitleBar::setMovable(bool b)
+{
+    d_func()->movable = b;
+}
+
+bool Q3TitleBar::isMovable() const
+{
+    return d_func()->movable;
+}
+
+void Q3TitleBar::setAutoRaise(bool b)
+{
+    d_func()->autoraise = b;
+}
+
+bool Q3TitleBar::autoRaise() const
+{
+    return d_func()->autoraise;
+}
+
+QSize Q3TitleBar::sizeHint() const
+{
+    ensurePolished();
+    QStyleOptionTitleBar opt = d_func()->getStyleOption();
+    QRect menur = style()->subControlRect(QStyle::CC_TitleBar, &opt,
+                                          QStyle::SC_TitleBarSysMenu, this);
+    return QSize(menur.width(), style()->pixelMetric(QStyle::PM_TitleBarHeight, &opt, this));
+}
+
+QT_END_NAMESPACE
+
+#endif //QT_NO_TITLEBAR