Changeset 561 for trunk/src/gui/widgets/qtabbar.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/widgets/qtabbar.cpp (modified) (32 diffs)

trunk/src/gui/widgets/qtabbar.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -21 +22 @@
 ** 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.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** 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.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -88 +88 @@
         // TODO: test tab bar position
 
-        // push the black line at the bottom of the menu bar down to the client are so we can paint over it
+        OSWindowRef window = qt_mac_window_for(q);
+
+        // push base line separator down to the client are so we can paint over it (Carbon)
         metrics.top = (documentMode && q->isVisible()) ? 1 : 0;
         metrics.bottom = 0;
         metrics.left = 0;
         metrics.right = 0;
-
-        qt_mac_updateContentBorderMetricts(qt_mac_window_for(q), metrics);
+        qt_mac_updateContentBorderMetricts(window, metrics);
+        
+        // hide the base line separator if the tabs have docuemnt mode enabled (Cocoa)
+        qt_mac_showBaseLineSeparator(window, !documentMode);
     }
 #endif
@@ -132 +136 @@
     if (isActiveWindow())
         option->state |= QStyle::State_Active;
-    if (option->rect == d->hoverRect)
+    if (!d->dragInProgress && option->rect == d->hoverRect)
         option->state |= QStyle::State_MouseOver;
     option->shape = d->shape;
@@ -177 +181 @@
             option->cornerWidgets |= QStyleOptionTab::RightCornerWidget;
     }
+#endif
 
     QRect textRect = style()->subElementRect(QStyle::SE_TabBarTabText, option, this);
-
     option->text = fontMetrics().elidedText(option->text, d->elideMode, textRect.width(),
                         Qt::TextShowMnemonic);
-#endif
 }
 
@@ -190 +193 @@
 
     \ingroup basicwidgets
-    \mainclass
+
 
     QTabBar is straightforward to use; it draws the tabs using one of
@@ -455 +458 @@
     }
 
-    if (pressedIndex != -1 && movable)
-        grabCache(0, tabList.count(), true);
-
     Q_ASSERT(tabChainIndex == tabChain.count() - 1); // add an assert just to make sure.
     // Mirror our front item.
@@ -668 +668 @@
         && movable
         && QApplication::mouseButtons() == Qt::NoButton) {
-        _q_moveTabFinished(pressedIndex);
+        moveTabFinished(pressedIndex);
         if (!validIndex(pressedIndex))
             pressedIndex = -1;
@@ -1089 +1089 @@
 
 /*!
-    Returns the datad of the tab at position \a index, or a null
+    Returns the data of the tab at position \a index, or a null
     variant if \a index is out of range.
 */
@@ -1101 +1101 @@
 
 /*!
-    Returns the visual rectangle of the of the tab at position \a
+    Returns the visual rectangle of the tab at position \a
     index, or a null rectangle if \a index is out of range.
 */
@@ -1171 +1171 @@
         update();
         d->makeVisible(index);
+        d->tabList[index].lastTab = oldIndex;
+        d->layoutWidgets(oldIndex);
+        d->layoutWidgets(index);
 #ifdef QT3_SUPPORT
         emit selected(index);
 #endif
         emit currentChanged(index);
-        d->tabList[index].lastTab = oldIndex;
-        d->layoutWidgets(oldIndex);
-        d->layoutWidgets(index);
     }
 }
@@ -1294 +1294 @@
 QSize QTabBar::tabSizeHint(int index) const
 {
+    //Note: this must match with the computations in QCommonStylePrivate::tabLayout
     Q_D(const QTabBar);
     if (const QTabBarPrivate::Tab *tab = d->at(index)) {
@@ -1310 +1311 @@
         int widgetHeight = 0;
         int padding = 0;
-        if (opt.leftButtonSize.isValid()) {
-            padding += 6 + 2;
+        if (!opt.leftButtonSize.isEmpty()) {
+            padding += 4;
             widgetWidth += opt.leftButtonSize.width();
             widgetHeight += opt.leftButtonSize.height();
         }
-        if (opt.rightButtonSize.isValid()) {
-            padding += 6 + 2;
+        if (!opt.rightButtonSize.isEmpty()) {
+            padding += 4;
             widgetWidth += opt.rightButtonSize.width();
             widgetHeight += opt.rightButtonSize.height();
         }
-        if (opt.iconSize.isValid())
-            padding += 2;
+        if (!opt.icon.isNull())
+            padding += 4;
 
         QSize csz;
@@ -1485 +1486 @@
     QStyleOptionTab cutTab;
     selected = d->currentIndex;
+    if (d->dragInProgress)
+        selected = d->pressedIndex;
 
     for (int i = 0; i < d->tabList.count(); ++i)
@@ -1523 +1526 @@
             continue;
 
-        if (!d->tabList[i].animatingCache.isNull() && d->paintWithOffsets) {
-            p.drawPixmap(tab.rect, d->tabList[i].animatingCache);
-        } else {
-            p.drawControl(QStyle::CE_TabBarTab, tab);
-        }
+        p.drawControl(QStyle::CE_TabBarTab, tab);
     }
 
@@ -1540 +1539 @@
                 tab.rect.moveLeft(tab.rect.x() + d->tabList[selected].dragOffset);
         }
-        p.drawControl(QStyle::CE_TabBarTab, tab);
+        if (!d->dragInProgress)
+            p.drawControl(QStyle::CE_TabBarTab, tab);
+        else {
+            int taboverlap = style()->pixelMetric(QStyle::PM_TabBarTabOverlap, 0, this);
+            d->movingTab->setGeometry(tab.rect.adjusted(-taboverlap, 0, taboverlap, 0));
+        }
     }
 
@@ -1664 +1668 @@
     int postLocation = vertical ? q->tabRect(to).y() : q->tabRect(to).x();
     int length = postLocation - preLocation;
-    tabList[to].makeTimeLine(q);
-    tabList[to].dragOffset += -1 * length;
-    tabList[to].timeLine->setFrameRange(tabList[to].dragOffset, 0);
-    animations[tabList[to].timeLine] = to;
-    tabList[to].timeLine->setDuration(ANIMATION_DURATION);
-    if (tabList[to].timeLine->state() != QTimeLine::Running)
-        tabList[to].timeLine->start();
-}
-
-void QTabBarPrivate::_q_moveTab(int offset)
-{
-    Q_Q(QTabBar);
-    if (QTimeLine *timeLine = qobject_cast<QTimeLine *>(q->sender())) {
-        int index = animations[timeLine];
-        if (!validIndex(index))
-            return;
-        tabList[index].dragOffset = offset;
-        q->update();
-    }
+    tabList[to].dragOffset -= length;
+    tabList[to].startAnimation(this, ANIMATION_DURATION);
+}
+
+void QTabBarPrivate::moveTab(int index, int offset)
+{
+    if (!validIndex(index))
+        return;
+    tabList[index].dragOffset = offset;
+    layoutTab(index); // Make buttons follow tab
+    q_func()->update();
 }
 
@@ -1696 +1692 @@
     // Be safe!
     if (d->pressedIndex != -1 && d->movable)
-        d->_q_moveTabFinished(d->pressedIndex);
+        d->moveTabFinished(d->pressedIndex);
 
     d->pressedIndex = d->indexAtPos(event->pos());
+#ifdef Q_WS_MAC
+    d->previousPressedIndex = d->pressedIndex;
+#endif
     if (d->validIndex(d->pressedIndex)) {
         QStyleOptionTabBarBaseV2 optTabBase;
@@ -1722 +1721 @@
         if (d->pressedIndex != -1
             && event->buttons() == Qt::NoButton)
-            d->_q_moveTabFinished(d->pressedIndex);
+            d->moveTabFinished(d->pressedIndex);
         
         // Start drag
@@ -1728 +1727 @@
             if ((event->pos() - d->dragStartPosition).manhattanLength() > QApplication::startDragDistance()) {
                 d->dragInProgress = true;
-                if (d->animations.isEmpty())
-                    d->grabCache(0, d->tabList.count(), false);
+                d->setupMovableTab();
             }
         }
@@ -1774 +1772 @@
                         d->slide(i + offset, d->pressedIndex);
                 }
-
             }
             // Buttons needs to follow the dragged tab
@@ -1781 +1778 @@
             update();
         }
+#ifdef Q_WS_MAC
+    } else if (!d->documentMode && event->buttons() == Qt::LeftButton && d->previousPressedIndex != -1) {
+        int newPressedIndex = d->indexAtPos(event->pos());
+        if (d->pressedIndex == -1 && d->previousPressedIndex == newPressedIndex) {
+            d->pressedIndex = d->previousPressedIndex;
+            update(tabRect(d->pressedIndex));
+        } else if(d->pressedIndex != newPressedIndex) {
+            d->pressedIndex = -1;
+            update(tabRect(d->previousPressedIndex));
+        }
+#endif
     }
 
@@ -1792 +1800 @@
 }
 
-void QTabBarPrivate::_q_moveTabFinished()
+void QTabBarPrivate::setupMovableTab()
 {
     Q_Q(QTabBar);
-    if (QTimeLine *timeLine = qobject_cast<QTimeLine *>(q->sender())) {
-        int index = animations[timeLine];
-        animations.remove(timeLine);
-        _q_moveTabFinished(index);
-    }
-}
-
-void QTabBarPrivate::grabCache(int start, int end, bool unhide)
-{
-    Q_Q(QTabBar);
-    paintWithOffsets = false;
-    bool showButtonsAgain = rightB->isVisible();
-    rightB->hide();
-    leftB->hide();
-
-    QWidget *topLevel = q->window();
-    QPoint topLevelOffset(q->mapTo(topLevel, QPoint()));
-    for (int i = start; i < end; ++i) {
-        QRect tabRect = q->tabRect(i);
-        tabRect.translate(topLevelOffset);
-        if (unhide) {
-            tabList[i].unHideWidgets();
-            layoutWidgets(i);
-        }
-        tabList[i].animatingCache = QPixmap::grabWidget(topLevel, tabRect);
-        if (i != pressedIndex)
-            tabList[i].hideWidgets();
-    }
-    if (showButtonsAgain) {
-        rightB->show();
-        leftB->show();
-    }
-    paintWithOffsets = true;
-}
-
-void QTabBarPrivate::_q_moveTabFinished(int index)
+    if (!movingTab)
+        movingTab = new QWidget(q);
+
+    int taboverlap = q->style()->pixelMetric(QStyle::PM_TabBarTabOverlap, 0 ,q);
+    QRect grabRect = q->tabRect(pressedIndex);
+    grabRect.adjust(-taboverlap, 0, taboverlap, 0);
+
+    QPixmap grabImage(grabRect.size());
+    grabImage.fill(Qt::transparent);
+    QStylePainter p(&grabImage, q);
+    p.initFrom(q);
+
+    QStyleOptionTabV3 tab;
+    q->initStyleOption(&tab, pressedIndex);
+    tab.rect.moveTopLeft(QPoint(taboverlap, 0));
+    p.drawControl(QStyle::CE_TabBarTab, tab);
+    p.end();
+
+    QPalette pal;
+    pal.setBrush(QPalette::All, QPalette::Window, grabImage);
+    movingTab->setPalette(pal);
+    movingTab->setGeometry(grabRect);
+    movingTab->setAutoFillBackground(true);
+    movingTab->raise();
+
+    // Re-arrange widget order to avoid overlaps
+    if (tabList[pressedIndex].leftWidget)
+        tabList[pressedIndex].leftWidget->raise();
+    if (tabList[pressedIndex].rightWidget)
+        tabList[pressedIndex].rightWidget->raise();
+    if (leftB)
+        leftB->raise();
+    if (rightB)
+        rightB->raise();
+    movingTab->setVisible(true);
+}
+
+void QTabBarPrivate::moveTabFinished(int index)
 {
     Q_Q(QTabBar);
     bool cleanup = (pressedIndex == index) || (pressedIndex == -1) || !validIndex(index);
-    if (animations.isEmpty() && cleanup) {
+    bool allAnimationsFinished = true;
+#ifndef QT_NO_ANIMATION
+    for(int i = 0; allAnimationsFinished && i < tabList.count(); ++i) {
+        const Tab &t = tabList.at(i);
+        if (t.animation && t.animation->state() == QAbstractAnimation::Running)
+            allAnimationsFinished = false;
+    }
+#endif //QT_NO_ANIMATION
+    if (allAnimationsFinished && cleanup) {
+        if(movingTab)
+            movingTab->setVisible(false); // We might not get a mouse release
         for (int i = 0; i < tabList.count(); ++i) {
             tabList[i].dragOffset = 0;
-            tabList[i].unHideWidgets();
-            tabList[i].animatingCache = QPixmap();
         }
         if (pressedIndex != -1 && movable) {
@@ -1863 +1881 @@
         return;
     }
-
+#ifdef Q_WS_MAC
+    d->previousPressedIndex = -1;
+#endif
     if (d->movable && d->dragInProgress && d->validIndex(d->pressedIndex)) {
         int length = d->tabList[d->pressedIndex].dragOffset;
@@ -1870 +1890 @@
             : tabRect(d->pressedIndex).width();
         int duration = qMin(ANIMATION_DURATION,
-                ((length < 0 ? (-1 * length) : length) * ANIMATION_DURATION) / width);
-        if (duration > 0) {
-            d->tabList[d->pressedIndex].makeTimeLine(this);
-            d->tabList[d->pressedIndex].timeLine->setFrameRange(length, 0);
-            d->animations[d->tabList[d->pressedIndex].timeLine] = d->pressedIndex;
-            d->tabList[d->pressedIndex].timeLine->setDuration(duration);
-            if (d->tabList[d->pressedIndex].timeLine->state() != QTimeLine::Running)
-                d->tabList[d->pressedIndex].timeLine->start();
-        } else {
-            d->_q_moveTabFinished(d->pressedIndex);
-        }
+                (qAbs(length) * ANIMATION_DURATION) / width);
+        d->tabList[d->pressedIndex].startAnimation(d, duration);
         d->dragInProgress = false;
+        d->movingTab->setVisible(false);
         d->dragStartPosition = QPoint();
     }
@@ -1903 +1915 @@
         return;
     }
-    int dx = event->key() == (isRightToLeft() ? Qt::Key_Right : Qt::Key_Left) ? -1 : 1;
-    for (int index = d->currentIndex + dx; d->validIndex(index); index += dx) {
-        if (d->tabList.at(index).enabled) {
-            setCurrentIndex(index);
-            break;
-        }
-    }
+    int offset = event->key() == (isRightToLeft() ? Qt::Key_Right : Qt::Key_Left) ? -1 : 1;    
+    d->setCurrentNextEnabledIndex(offset);
 }
 
@@ -1918 +1925 @@
 {
     Q_D(QTabBar);
-    int overIndex = d->indexAtPos(event->pos());
-    if (overIndex != -1) {
-        int offset = event->delta() > 0 ? -1 : 1;
-        setCurrentIndex(currentIndex() + offset);
-    }
+    int offset = event->delta() > 0 ? -1 : 1;
+    d->setCurrentNextEnabledIndex(offset);
     QWidget::wheelEvent(event);
 }
 #endif //QT_NO_WHEELEVENT
+
+void QTabBarPrivate::setCurrentNextEnabledIndex(int offset)
+{
+    Q_Q(QTabBar);
+    for (int index = currentIndex + offset; validIndex(index); index += offset) {
+        if (tabList.at(index).enabled) {
+            q->setCurrentIndex(index);
+            break;
+        }
+    }
+}
 
 /*!\reimp
@@ -1934 +1949 @@
     if (event->type() == QEvent::StyleChange) {
         d->elideMode = Qt::TextElideMode(style()->styleHint(QStyle::SH_TabBar_ElideMode, 0, this));
-        d->useScrollButtons = !style()->styleHint(QStyle::SH_TabBar_PreferNoArrows, 0, this);
-    }
-    d->refresh();
+        if (!d->useScrollButtonsSetByUser)
+            d->useScrollButtons = !style()->styleHint(QStyle::SH_TabBar_PreferNoArrows, 0, this);
+        d->refresh();
+    } else if (event->type() == QEvent::FontChange) {
+        d->refresh();
+    }
     QWidget::changeEvent(event);
 }
@@ -1987 +2005 @@
 {
     Q_D(QTabBar);
+    d->useScrollButtonsSetByUser = true;
     if (d->useScrollButtons == useButtons)
         return;
@@ -2204 +2223 @@
         // make sure our left and right widgets stay on top
         widget->lower();
+        widget->show();
     }
     if (position == LeftSide) {
@@ -2209 +2229 @@
             d->tabList[index].leftWidget->hide();
         d->tabList[index].leftWidget = widget;
-        if(!d->tabList[index].hidLeft && widget)
-            widget->show();
     } else {
         if (d->tabList[index].rightWidget)
             d->tabList[index].rightWidget->hide();
         d->tabList[index].rightWidget = widget;
-        if(!d->tabList[index].hidRight && widget)
-            widget->show();
     }
     d->layoutTabs();
+    d->refresh();
     update();
 }