Fixes warnings about unused variables

Reviewed-by: jbache
(cherry picked from commit e8019cf8feb402303e6d253f5ca58bebfda42679)

11 files changed, 1 insertions, 65 deletions

diff --git a/src/gui/styles/qcleanlooksstyle.cpp b/src/gui/styles/qcleanlooksstyle.cpp
index cc5fe10692..786aab34c3 100644
--- a/src/gui/styles/qcleanlooksstyle.cpp
+++ b/src/gui/styles/qcleanlooksstyle.cpp
@@ -841,7 +841,6 @@ void QCleanlooksStyle::drawPrimitive(PrimitiveElement elem,
     case PE_PanelButtonTool:
         painter->save();
         if ((option->state & State_Enabled || option->state & State_On) || !(option->state & State_AutoRaise)) {
-            QRect rect = option->rect;
             QPen oldPen = painter->pen();
 
             if (widget && widget->inherits("QDockWidgetTitleButton")) {
@@ -1241,7 +1240,6 @@ void QCleanlooksStyle::drawPrimitive(PrimitiveElement elem,
         if (const QStyleOptionTabWidgetFrame *twf = qstyleoption_cast<const QStyleOptionTabWidgetFrame *>(option)) {
             QColor borderColor = darkOutline.lighter(110);
             QColor alphaCornerColor = mergedColors(borderColor, option->palette.background().color());
-            QColor innerShadow = mergedColors(borderColor, option->palette.base().color());
 
             int borderThickness = proxy()->pixelMetric(PM_TabBarBaseOverlap, twf, widget);
             bool reverse = (twf->direction == Qt::RightToLeft);
@@ -1879,7 +1877,6 @@ void QCleanlooksStyle::drawControl(ControlElement element, const QStyleOption *o
             } else {
                 alphaCornerColor = mergedColors(option->palette.background().color(), borderColor);
             }
-            QColor alphaTextColor = mergedColors(option->palette.background().color(), option->palette.text().color());
             if (menuItem->menuItemType == QStyleOptionMenuItem::Separator) {
                 painter->fillRect(menuItem->rect, menuBackground);
                 int w = 0;
@@ -2220,7 +2217,6 @@ void QCleanlooksStyle::drawControl(ControlElement element, const QStyleOption *o
                                     && tabBarAlignment == Qt::AlignLeft);
 
             QColor light = tab->palette.light().color();
-            QColor midlight = tab->palette.midlight().color();
 
             QColor background = tab->palette.background().color();
             int borderThinkness = proxy()->pixelMetric(PM_TabBarBaseOverlap, tab, widget);
@@ -2444,14 +2440,6 @@ void QCleanlooksStyle::drawComplexControl(ComplexControl control, const QStyleOp
     QColor gradientStartColor = option->palette.button().color().lighter(108);
     QColor gradientStopColor = mergedColors(option->palette.button().color().darker(108), dark.lighter(150), 70);
 
-    QColor highlightedGradientStartColor = option->palette.button().color();
-    QColor highlightedGradientStopColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 85);
-
-    QColor highlightedDarkInnerBorderColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 35);
-    QColor highlightedLightInnerBorderColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 58);
-
-    QColor buttonShadowAlpha = option->palette.background().color().darker(105);
-
     QPalette palette = option->palette;
 
     switch (control) {
@@ -3437,7 +3425,6 @@ void QCleanlooksStyle::drawComplexControl(ComplexControl control, const QStyleOp
         if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
             QRect groove = proxy()->subControlRect(CC_Slider, option, SC_SliderGroove, widget);
             QRect handle = proxy()->subControlRect(CC_Slider, option, SC_SliderHandle, widget);
-            QRect ticks = proxy()->subControlRect(CC_Slider, option, SC_SliderTickmarks, widget);
 
             bool horizontal = slider->orientation == Qt::Horizontal;
             bool ticksAbove = slider->tickPosition & QSlider::TicksAbove;
@@ -3539,8 +3526,6 @@ void QCleanlooksStyle::drawComplexControl(ComplexControl control, const QStyleOp
                     QRect pixmapRect(0, 0, handle.width(), handle.height());
                     QPainter handlePainter(&cache);
 
-                    QColor highlightedGradientStartColor = option->palette.button().color();
-                    QColor highlightedGradientStopColor = option->palette.light().color();
                     QColor gradientStartColor = mergedColors(option->palette.button().color().lighter(155),
                                                              dark.lighter(155), 50);
                     QColor gradientStopColor = gradientStartColor.darker(108);
@@ -3557,7 +3542,6 @@ void QCleanlooksStyle::drawComplexControl(ComplexControl control, const QStyleOp
                     }
 
                     // gradient fill
-                    QRect innerBorder = gradRect;
                     QRect r = pixmapRect.adjusted(1, 1, -1, -1);
 
                     qt_cleanlooks_draw_gradient(&handlePainter, gradRect,
diff --git a/src/gui/styles/qcommonstyle.cpp b/src/gui/styles/qcommonstyle.cpp
index 3d04c9a897..2534d3e840 100644
--- a/src/gui/styles/qcommonstyle.cpp
+++ b/src/gui/styles/qcommonstyle.cpp
@@ -898,24 +898,6 @@ QSize QCommonStylePrivate::viewItemSize(const QStyleOptionViewItemV4 *option, in
     return QSize(0, 0);
 }
 
-static QSizeF viewItemTextLayout(QTextLayout &textLayout, int lineWidth)
-{
-    qreal height = 0;
-    qreal widthUsed = 0;
-    textLayout.beginLayout();
-    while (true) {
-        QTextLine line = textLayout.createLine();
-        if (!line.isValid())
-            break;
-        line.setLineWidth(lineWidth);
-        line.setPosition(QPointF(0, height));
-        height += line.height();
-        widthUsed = qMax(widthUsed, line.naturalTextWidth());
-    }
-    textLayout.endLayout();
-    return QSizeF(widthUsed, height);
-}
-
 void QCommonStylePrivate::viewItemDrawText(QPainter *p, const QStyleOptionViewItemV4 *option, const QRect &rect) const
 {
     Q_Q(const QCommonStyle);
@@ -933,8 +915,6 @@ void QCommonStylePrivate::viewItemDrawText(QPainter *p, const QStyleOptionViewIt
     textLayout.setFont(option->font);
     textLayout.setText(option->text);
 
-    QSizeF textLayoutSize = viewItemTextLayout(textLayout, textRect.width());
-
     QString elidedText;
     qreal height = 0;
     qreal width = 0;
diff --git a/src/gui/styles/qgtkpainter.cpp b/src/gui/styles/qgtkpainter.cpp
index 68ade04984..6258fe4730 100644
--- a/src/gui/styles/qgtkpainter.cpp
+++ b/src/gui/styles/qgtkpainter.cpp
@@ -586,7 +586,6 @@ void QGtkPainter::paintShadow(GtkWidget *gtkWidget, const gchar* part,
     if (!rect.isValid())
         return;
 
-    QRect r = rect;
     QPixmap cache;
     QString pixmapName = uniqueName(QLS(part), state, shadow, rect.size()) % pmKey;
     if (!m_usePixmapCache || !QPixmapCache::find(pixmapName, cache)) {
@@ -605,7 +604,6 @@ void QGtkPainter::paintFlatBox(GtkWidget *gtkWidget, const gchar* part,
 {
     if (!rect.isValid())
         return;
-    QRect r = rect;
     QPixmap cache;
     QString pixmapName = uniqueName(QLS(part), state, shadow, rect.size()) % pmKey;
     if (!m_usePixmapCache || !QPixmapCache::find(pixmapName, cache)) {
@@ -632,7 +630,6 @@ void QGtkPainter::paintExtention(GtkWidget *gtkWidget,
     if (!rect.isValid())
         return;
 
-    QRect r = rect;
     QPixmap cache;
     QString pixmapName = uniqueName(QLS(part), state, shadow, rect.size(), gtkWidget)
                          % HexString<uchar>(gap_pos);
@@ -660,7 +657,6 @@ void QGtkPainter::paintOption(GtkWidget *gtkWidget, const QRect &radiorect,
     if (!rect.isValid())
         return;
 
-    QRect r = rect;
     QPixmap cache;
     QString pixmapName = uniqueName(detail, state, shadow, rect.size());
     GdkRectangle gtkCliprect = {0, 0, rect.width(), rect.height()};
@@ -692,7 +688,6 @@ void QGtkPainter::paintCheckbox(GtkWidget *gtkWidget, const QRect &checkrect,
     if (!rect.isValid())
         return;
 
-    QRect r = rect;
     QPixmap cache;
     QString pixmapName = uniqueName(detail, state, shadow, rect.size());
     GdkRectangle gtkCliprect = {0, 0, rect.width(), rect.height()};
diff --git a/src/gui/styles/qgtkstyle.cpp b/src/gui/styles/qgtkstyle.cpp
index 277e3025b5..d6dd52790f 100644
--- a/src/gui/styles/qgtkstyle.cpp
+++ b/src/gui/styles/qgtkstyle.cpp
@@ -782,7 +782,6 @@ void QGtkStyle::drawPrimitive(PrimitiveElement element,
             GtkStateType state = gtkPainter.gtkState(option);
             style = gtkTreeHeader->style;
             GtkArrowType type = GTK_ARROW_UP;
-            QRect r = header->rect;
             QImage arrow;
             // This sorting indicator inversion is intentional, and follows the GNOME HIG.
             // See http://library.gnome.org/devel/hig-book/stable/controls-lists.html.en#controls-lists-sortable
@@ -1857,7 +1856,6 @@ void QGtkStyle::drawComplexControl(ComplexControl control, const QStyleOptionCom
                     editArea.setRight(upRect.left());
             }
             if (spinBox->frame) {
-                GtkShadowType shadow = GTK_SHADOW_OUT;
                 GtkStateType state = gtkPainter.gtkState(option);
 
                 if (!(option->state & State_Enabled))
@@ -1867,7 +1865,6 @@ void QGtkStyle::drawComplexControl(ComplexControl control, const QStyleOptionCom
                 else if (state == GTK_STATE_PRELIGHT)
                     state = GTK_STATE_NORMAL;
 
-                shadow = GTK_SHADOW_IN;
                 style = gtkPainter.getStyle(gtkSpinButton);
 
 
diff --git a/src/gui/styles/qplastiquestyle.cpp b/src/gui/styles/qplastiquestyle.cpp
index 02ce60efab..1d33212457 100644
--- a/src/gui/styles/qplastiquestyle.cpp
+++ b/src/gui/styles/qplastiquestyle.cpp
@@ -2007,14 +2007,10 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
     } else {
         alphaCornerColor = mergedColors(option->palette.background().color(), borderColor);
     }
-    QColor alphaTextColor = mergedColors(option->palette.background().color(), option->palette.text().color());
 
     QColor gradientStartColor = option->palette.button().color().lighter(104);
     QColor gradientStopColor = option->palette.button().color().darker(105);
 
-    QColor shadowGradientStartColor = option->palette.button().color().darker(115);
-    QColor shadowGradientStopColor = option->palette.button().color().darker(120);
-
     QColor highlightedGradientStartColor = option->palette.button().color().lighter(101);
     QColor highlightedGradientStopColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 85);
 
@@ -2025,8 +2021,6 @@ void QPlastiqueStyle::drawControl(ControlElement element, const QStyleOption *op
     QColor highlightedLightInnerBorderColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 58);
 
     QColor alphaInnerColor = mergedColors(highlightedDarkInnerBorderColor, option->palette.base().color());
-    QColor lightShadow = lightShadowGradientStartColor;
-    QColor shadow = shadowGradientStartColor;
 
     switch (element) {
 #ifndef QT_NO_TABBAR
@@ -3786,10 +3780,6 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
     }
     QColor gradientStartColor = option->palette.button().color().lighter(104);
     QColor gradientStopColor = option->palette.button().color().darker(105);
-    QColor highlightedGradientStartColor = option->palette.button().color().lighter(101);
-    QColor highlightedGradientStopColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 85);
-    QColor highlightedDarkInnerBorderColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 35);
-    QColor highlightedLightInnerBorderColor = mergedColors(option->palette.button().color(), option->palette.highlight().color(), 58);
 
     switch (control) {
 #ifndef QT_NO_SLIDER
@@ -3797,7 +3787,6 @@ void QPlastiqueStyle::drawComplexControl(ComplexControl control, const QStyleOpt
         if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(option)) {
             QRect grooveRegion = proxy()->subControlRect(CC_Slider, option, SC_SliderGroove, widget);
             QRect handle = proxy()->subControlRect(CC_Slider, option, SC_SliderHandle, widget);
-            QRect ticks = proxy()->subControlRect(CC_Slider, option, SC_SliderTickmarks, widget);
             bool horizontal = slider->orientation == Qt::Horizontal;
             bool ticksAbove = slider->tickPosition & QSlider::TicksAbove;
             bool ticksBelow = slider->tickPosition & QSlider::TicksBelow;
diff --git a/src/gui/styles/qwindowsstyle.cpp b/src/gui/styles/qwindowsstyle.cpp
index 1dcfd0047f..754486ee16 100644
--- a/src/gui/styles/qwindowsstyle.cpp
+++ b/src/gui/styles/qwindowsstyle.cpp
@@ -2028,10 +2028,8 @@ void QWindowsStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPai
                                          && tabBarAlignment == Qt::AlignLeft);
 
             QColor light = tab->palette.light().color();
-            QColor midlight = tab->palette.midlight().color();
             QColor dark = tab->palette.dark().color();
             QColor shadow = tab->palette.shadow().color();
-            QColor background = tab->palette.background().color();
             int borderThinkness = proxy()->pixelMetric(PM_TabBarBaseOverlap, tab, widget);
             if (selected)
                 borderThinkness /= 2;
diff --git a/src/gui/widgets/qdockarealayout.cpp b/src/gui/widgets/qdockarealayout.cpp
index 223421dfb2..28c0388078 100644
--- a/src/gui/widgets/qdockarealayout.cpp
+++ b/src/gui/widgets/qdockarealayout.cpp
@@ -2100,7 +2100,6 @@ bool QDockAreaLayoutInfo::updateTabBar() const
     bool gap = false;
 
     int tab_idx = 0;
-    bool changed = false;
     for (int i = 0; i < item_list.count(); ++i) {
         const QDockAreaLayoutItem &item = item_list.at(i);
         if (item.skip())
@@ -2121,7 +2120,6 @@ bool QDockAreaLayoutInfo::updateTabBar() const
             tabBar->setTabToolTip(tab_idx, title);
 #endif
             tabBar->setTabData(tab_idx, id);
-            changed = true;
         } else if (qvariant_cast<quintptr>(tabBar->tabData(tab_idx)) != id) {
             if (tab_idx + 1 < tabBar->count()
                     && qvariant_cast<quintptr>(tabBar->tabData(tab_idx + 1)) == id)
@@ -2133,7 +2131,6 @@ bool QDockAreaLayoutInfo::updateTabBar() const
 #endif
                 tabBar->setTabData(tab_idx, id);
             }
-            changed = true;
         }
 
         if (title != tabBar->tabText(tab_idx)) {
@@ -2141,7 +2138,6 @@ bool QDockAreaLayoutInfo::updateTabBar() const
 #ifndef QT_NO_TOOLTIP
             tabBar->setTabToolTip(tab_idx, title);
 #endif
-            changed = true;
         }
 
         ++tab_idx;
@@ -2149,7 +2145,6 @@ bool QDockAreaLayoutInfo::updateTabBar() const
 
     while (tab_idx < tabBar->count()) {
         tabBar->removeTab(tab_idx);
-        changed = true;
     }
 
     tabBar->blockSignals(blocked);
diff --git a/src/gui/widgets/qdockwidget.cpp b/src/gui/widgets/qdockwidget.cpp
index 9d1a737cf1..16b60c8295 100644
--- a/src/gui/widgets/qdockwidget.cpp
+++ b/src/gui/widgets/qdockwidget.cpp
@@ -161,7 +161,6 @@ void QDockWidgetTitleButton::paintEvent(QPaintEvent *)
 {
     QPainter p(this);
 
-    QRect r = rect();
     QStyleOptionToolButton opt;
     opt.init(this);
     opt.state |= QStyle::State_AutoRaise;
diff --git a/src/gui/widgets/qplaintextedit.cpp b/src/gui/widgets/qplaintextedit.cpp
index e7761a1613..51c4ccbeb7 100644
--- a/src/gui/widgets/qplaintextedit.cpp
+++ b/src/gui/widgets/qplaintextedit.cpp
@@ -483,6 +483,7 @@ int QPlainTextEditPrivate::verticalOffset(int topBlock, int topLine) const
         QPlainTextDocumentLayout *documentLayout = qobject_cast<QPlainTextDocumentLayout*>(doc->documentLayout());
         Q_ASSERT(documentLayout);
         QRectF r = documentLayout->blockBoundingRect(currentBlock);
+        Q_UNUSED(r);
         QTextLayout *layout = currentBlock.layout();
         if (layout && topLine <= layout->lineCount()) {
             QTextLine line = layout->lineAt(topLine - 1);
diff --git a/src/gui/widgets/qtextedit.cpp b/src/gui/widgets/qtextedit.cpp
index ff924bf377..8df436f932 100644
--- a/src/gui/widgets/qtextedit.cpp
+++ b/src/gui/widgets/qtextedit.cpp
@@ -2614,7 +2614,6 @@ Qt::TextFormat QTextEdit::textFormat() const
 void QTextEdit::append(const QString &text)
 {
     Q_D(QTextEdit);
-    QTextBlock lastBlock = d->control->document()->lastBlock();
     const bool atBottom = isReadOnly() ?  d->verticalOffset() >= d->vbar->maximum() :
             d->control->textCursor().atEnd();
     d->control->append(text);
diff --git a/src/gui/widgets/qworkspace.cpp b/src/gui/widgets/qworkspace.cpp
index bf50d07947..13ef13b2fe 100644
--- a/src/gui/widgets/qworkspace.cpp
+++ b/src/gui/widgets/qworkspace.cpp
@@ -1239,7 +1239,6 @@ QWidget * QWorkspace::addWindow(QWidget *w, Qt::WindowFlags flags)
     int x = w->x();
     int y = w->y();
     bool hasPos = w->testAttribute(Qt::WA_Moved);
-    QSize s = w->size().expandedTo(qSmartMinSize(w));
     if (!hasSize && w->sizeHint().isValid())
         w->adjustSize();