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40 | ****************************************************************************/ | - |
41 | | - |
42 | #include "qabstractscrollarea.h" | - |
43 | | - |
44 | #ifndef QT_NO_SCROLLAREA | - |
45 | | - |
46 | #include "qscrollbar.h" | - |
47 | #include "qapplication.h" | - |
48 | #include "qstyle.h" | - |
49 | #include "qstyleoption.h" | - |
50 | #include "qevent.h" | - |
51 | #include "qdebug.h" | - |
52 | #include "qboxlayout.h" | - |
53 | #include "qpainter.h" | - |
54 | #include "qmargins.h" | - |
55 | #include "qheaderview.h" | - |
56 | | - |
57 | #include <QDebug> | - |
58 | | - |
59 | #include "qabstractscrollarea_p.h" | - |
60 | #include "qscrollbar_p.h" | - |
61 | #include <qwidget.h> | - |
62 | | - |
63 | #include <private/qapplication_p.h> | - |
64 | | - |
65 | #ifdef Q_WS_MAC | - |
66 | #include <private/qt_mac_p.h> | - |
67 | #include <private/qt_cocoa_helpers_mac_p.h> | - |
68 | #endif | - |
69 | #ifdef Q_OS_WIN | - |
70 | # include <qlibrary.h> | - |
71 | # include <qt_windows.h> | - |
72 | #endif | - |
73 | | - |
74 | QT_BEGIN_NAMESPACE | - |
75 | | - |
76 | /*! | - |
77 | \class QAbstractScrollArea | - |
78 | \brief The QAbstractScrollArea widget provides a scrolling area with | - |
79 | on-demand scroll bars. | - |
80 | | - |
81 | \ingroup abstractwidgets | - |
82 | \inmodule QtWidgets | - |
83 | | - |
84 | QAbstractScrollArea is a low-level abstraction of a scrolling | - |
85 | area. The area provides a central widget called the viewport, in | - |
86 | which the contents of the area is to be scrolled (i.e, the | - |
87 | visible parts of the contents are rendered in the viewport). | - |
88 | | - |
89 | Next to the viewport is a vertical scroll bar, and below is a | - |
90 | horizontal scroll bar. When all of the area contents fits in the | - |
91 | viewport, each scroll bar can be either visible or hidden | - |
92 | depending on the scroll bar's Qt::ScrollBarPolicy. When a scroll | - |
93 | bar is hidden, the viewport expands in order to cover all | - |
94 | available space. When a scroll bar becomes visible again, the | - |
95 | viewport shrinks in order to make room for the scroll bar. | - |
96 | | - |
97 | It is possible to reserve a margin area around the viewport, see | - |
98 | setViewportMargins(). The feature is mostly used to place a | - |
99 | QHeaderView widget above or beside the scrolling area. Subclasses | - |
100 | of QAbstractScrollArea should implement margins. | - |
101 | | - |
102 | When inheriting QAbstractScrollArea, you need to do the | - |
103 | following: | - |
104 | | - |
105 | \list | - |
106 | \li Control the scroll bars by setting their | - |
107 | range, value, page step, and tracking their | - |
108 | movements. | - |
109 | \li Draw the contents of the area in the viewport according | - |
110 | to the values of the scroll bars. | - |
111 | \li Handle events received by the viewport in | - |
112 | viewportEvent() - notably resize events. | - |
113 | \li Use \c{viewport->update()} to update the contents of the | - |
114 | viewport instead of \l{QWidget::update()}{update()} | - |
115 | as all painting operations take place on the viewport. | - |
116 | \endlist | - |
117 | | - |
118 | With a scroll bar policy of Qt::ScrollBarAsNeeded (the default), | - |
119 | QAbstractScrollArea shows scroll bars when they provide a non-zero | - |
120 | scrolling range, and hides them otherwise. | - |
121 | | - |
122 | The scroll bars and viewport should be updated whenever the viewport | - |
123 | receives a resize event or the size of the contents changes. | - |
124 | The viewport also needs to be updated when the scroll bars | - |
125 | values change. The initial values of the scroll bars are often | - |
126 | set when the area receives new contents. | - |
127 | | - |
128 | We give a simple example, in which we have implemented a scroll area | - |
129 | that can scroll any QWidget. We make the widget a child of the | - |
130 | viewport; this way, we do not have to calculate which part of | - |
131 | the widget to draw but can simply move the widget with | - |
132 | QWidget::move(). When the area contents or the viewport size | - |
133 | changes, we do the following: | - |
134 | | - |
135 | \snippet myscrollarea.cpp 1 | - |
136 | | - |
137 | When the scroll bars change value, we need to update the widget | - |
138 | position, i.e., find the part of the widget that is to be drawn in | - |
139 | the viewport: | - |
140 | | - |
141 | \snippet myscrollarea.cpp 0 | - |
142 | | - |
143 | In order to track scroll bar movements, reimplement the virtual | - |
144 | function scrollContentsBy(). In order to fine-tune scrolling | - |
145 | behavior, connect to a scroll bar's | - |
146 | QAbstractSlider::actionTriggered() signal and adjust the \l | - |
147 | QAbstractSlider::sliderPosition as you wish. | - |
148 | | - |
149 | For convenience, QAbstractScrollArea makes all viewport events | - |
150 | available in the virtual viewportEvent() handler. QWidget's | - |
151 | specialized handlers are remapped to viewport events in the cases | - |
152 | where this makes sense. The remapped specialized handlers are: | - |
153 | paintEvent(), mousePressEvent(), mouseReleaseEvent(), | - |
154 | mouseDoubleClickEvent(), mouseMoveEvent(), wheelEvent(), | - |
155 | dragEnterEvent(), dragMoveEvent(), dragLeaveEvent(), dropEvent(), | - |
156 | contextMenuEvent(), and resizeEvent(). | - |
157 | | - |
158 | QScrollArea, which inherits QAbstractScrollArea, provides smooth | - |
159 | scrolling for any QWidget (i.e., the widget is scrolled pixel by | - |
160 | pixel). You only need to subclass QAbstractScrollArea if you need | - |
161 | more specialized behavior. This is, for instance, true if the | - |
162 | entire contents of the area is not suitable for being drawn on a | - |
163 | QWidget or if you do not want smooth scrolling. | - |
164 | | - |
165 | \sa QScrollArea | - |
166 | */ | - |
167 | | - |
168 | QAbstractScrollAreaPrivate::QAbstractScrollAreaPrivate() | - |
169 | :hbar(0), vbar(0), vbarpolicy(Qt::ScrollBarAsNeeded), hbarpolicy(Qt::ScrollBarAsNeeded), | - |
170 | viewport(0), cornerWidget(0), left(0), top(0), right(0), bottom(0), | - |
171 | xoffset(0), yoffset(0), viewportFilter(0) | - |
172 | #ifdef Q_WS_WIN | - |
173 | , singleFingerPanEnabled(false) | - |
174 | #endif | - |
175 | { | - |
176 | } executed: } Execution Count:5100 | 5100 |
177 | | - |
178 | QAbstractScrollAreaScrollBarContainer::QAbstractScrollAreaScrollBarContainer(Qt::Orientation orientation, QWidget *parent) | - |
179 | :QWidget(parent), scrollBar(new QScrollBar(orientation, this)), | - |
180 | layout(new QBoxLayout(orientation == Qt::Horizontal ? QBoxLayout::LeftToRight : QBoxLayout::TopToBottom)), | - |
181 | orientation(orientation) | - |
182 | { | - |
183 | setLayout(layout); executed (the execution status of this line is deduced): setLayout(layout); | - |
184 | layout->setMargin(0); executed (the execution status of this line is deduced): layout->setMargin(0); | - |
185 | layout->setSpacing(0); executed (the execution status of this line is deduced): layout->setSpacing(0); | - |
186 | layout->addWidget(scrollBar); executed (the execution status of this line is deduced): layout->addWidget(scrollBar); | - |
187 | layout->setSizeConstraint(QLayout::SetMaximumSize); executed (the execution status of this line is deduced): layout->setSizeConstraint(QLayout::SetMaximumSize); | - |
188 | } executed: } Execution Count:10200 | 10200 |
189 | | - |
190 | /*! \internal | - |
191 | Adds a widget to the scroll bar container. | - |
192 | */ | - |
193 | void QAbstractScrollAreaScrollBarContainer::addWidget(QWidget *widget, LogicalPosition position) | - |
194 | { | - |
195 | QSizePolicy policy = widget->sizePolicy(); executed (the execution status of this line is deduced): QSizePolicy policy = widget->sizePolicy(); | - |
196 | if (orientation == Qt::Vertical) evaluated: orientation == Qt::Vertical yes Evaluation Count:8 | yes Evaluation Count:5 |
| 5-8 |
197 | policy.setHorizontalPolicy(QSizePolicy::Ignored); executed: policy.setHorizontalPolicy(QSizePolicy::Ignored); Execution Count:8 | 8 |
198 | else | - |
199 | policy.setVerticalPolicy(QSizePolicy::Ignored); executed: policy.setVerticalPolicy(QSizePolicy::Ignored); Execution Count:5 | 5 |
200 | widget->setSizePolicy(policy); executed (the execution status of this line is deduced): widget->setSizePolicy(policy); | - |
201 | widget->setParent(this); executed (the execution status of this line is deduced): widget->setParent(this); | - |
202 | | - |
203 | const int insertIndex = (position & LogicalLeft) ? 0 : scrollBarLayoutIndex() + 1; evaluated: (position & LogicalLeft) yes Evaluation Count:5 | yes Evaluation Count:8 |
| 5-8 |
204 | layout->insertWidget(insertIndex, widget); executed (the execution status of this line is deduced): layout->insertWidget(insertIndex, widget); | - |
205 | } executed: } Execution Count:13 | 13 |
206 | | - |
207 | /*! \internal | - |
208 | Retuns a list of scroll bar widgets for the given position. The scroll bar | - |
209 | itself is not returned. | - |
210 | */ | - |
211 | QWidgetList QAbstractScrollAreaScrollBarContainer::widgets(LogicalPosition position) | - |
212 | { | - |
213 | QWidgetList list; executed (the execution status of this line is deduced): QWidgetList list; | - |
214 | const int scrollBarIndex = scrollBarLayoutIndex(); executed (the execution status of this line is deduced): const int scrollBarIndex = scrollBarLayoutIndex(); | - |
215 | if (position == LogicalLeft) { evaluated: position == LogicalLeft yes Evaluation Count:30 | yes Evaluation Count:30 |
| 30 |
216 | for (int i = 0; i < scrollBarIndex; ++i) evaluated: i < scrollBarIndex yes Evaluation Count:12 | yes Evaluation Count:30 |
| 12-30 |
217 | list.append(layout->itemAt(i)->widget()); executed: list.append(layout->itemAt(i)->widget()); Execution Count:12 | 12 |
218 | } else if (position == LogicalRight) { executed: } Execution Count:30 partially evaluated: position == LogicalRight yes Evaluation Count:30 | no Evaluation Count:0 |
| 0-30 |
219 | const int layoutItemCount = layout->count(); executed (the execution status of this line is deduced): const int layoutItemCount = layout->count(); | - |
220 | for (int i = scrollBarIndex + 1; i < layoutItemCount; ++i) evaluated: i < layoutItemCount yes Evaluation Count:10 | yes Evaluation Count:30 |
| 10-30 |
221 | list.append(layout->itemAt(i)->widget()); executed: list.append(layout->itemAt(i)->widget()); Execution Count:10 | 10 |
222 | } executed: } Execution Count:30 | 30 |
223 | return list; executed: return list; Execution Count:60 | 60 |
224 | } | - |
225 | | - |
226 | /*! \internal | - |
227 | Returns the layout index for the scroll bar. This needs to be | - |
228 | recalculated by a linear search for each use, since items in | - |
229 | the layout can be removed at any time (i.e. when a widget is | - |
230 | deleted or re-parented). | - |
231 | */ | - |
232 | int QAbstractScrollAreaScrollBarContainer::scrollBarLayoutIndex() const | - |
233 | { | - |
234 | const int layoutItemCount = layout->count(); executed (the execution status of this line is deduced): const int layoutItemCount = layout->count(); | - |
235 | for (int i = 0; i < layoutItemCount; ++i) { partially evaluated: i < layoutItemCount yes Evaluation Count:100 | no Evaluation Count:0 |
| 0-100 |
236 | if (qobject_cast<QScrollBar *>(layout->itemAt(i)->widget())) evaluated: qobject_cast<QScrollBar *>(layout->itemAt(i)->widget()) yes Evaluation Count:68 | yes Evaluation Count:32 |
| 32-68 |
237 | return i; executed: return i; Execution Count:68 | 68 |
238 | } executed: } Execution Count:32 | 32 |
239 | return -1; never executed: return -1; | 0 |
240 | } | - |
241 | | - |
242 | /*! \internal | - |
243 | */ | - |
244 | void QAbstractScrollAreaPrivate::replaceScrollBar(QScrollBar *scrollBar, | - |
245 | Qt::Orientation orientation) | - |
246 | { | - |
247 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
248 | | - |
249 | QAbstractScrollAreaScrollBarContainer *container = scrollBarContainers[orientation]; executed (the execution status of this line is deduced): QAbstractScrollAreaScrollBarContainer *container = scrollBarContainers[orientation]; | - |
250 | bool horizontal = (orientation == Qt::Horizontal); executed (the execution status of this line is deduced): bool horizontal = (orientation == Qt::Horizontal); | - |
251 | QScrollBar *oldBar = horizontal ? hbar : vbar; evaluated: horizontal yes Evaluation Count:4 | yes Evaluation Count:4 |
| 4 |
252 | if (horizontal) evaluated: horizontal yes Evaluation Count:4 | yes Evaluation Count:4 |
| 4 |
253 | hbar = scrollBar; executed: hbar = scrollBar; Execution Count:4 | 4 |
254 | else | - |
255 | vbar = scrollBar; executed: vbar = scrollBar; Execution Count:4 | 4 |
256 | scrollBar->setParent(container); executed (the execution status of this line is deduced): scrollBar->setParent(container); | - |
257 | container->scrollBar = scrollBar; executed (the execution status of this line is deduced): container->scrollBar = scrollBar; | - |
258 | container->layout->removeWidget(oldBar); executed (the execution status of this line is deduced): container->layout->removeWidget(oldBar); | - |
259 | container->layout->insertWidget(0, scrollBar); executed (the execution status of this line is deduced): container->layout->insertWidget(0, scrollBar); | - |
260 | scrollBar->setVisible(oldBar->isVisibleTo(container)); executed (the execution status of this line is deduced): scrollBar->setVisible(oldBar->isVisibleTo(container)); | - |
261 | scrollBar->setInvertedAppearance(oldBar->invertedAppearance()); executed (the execution status of this line is deduced): scrollBar->setInvertedAppearance(oldBar->invertedAppearance()); | - |
262 | scrollBar->setInvertedControls(oldBar->invertedControls()); executed (the execution status of this line is deduced): scrollBar->setInvertedControls(oldBar->invertedControls()); | - |
263 | scrollBar->setRange(oldBar->minimum(), oldBar->maximum()); executed (the execution status of this line is deduced): scrollBar->setRange(oldBar->minimum(), oldBar->maximum()); | - |
264 | scrollBar->setOrientation(oldBar->orientation()); executed (the execution status of this line is deduced): scrollBar->setOrientation(oldBar->orientation()); | - |
265 | scrollBar->setPageStep(oldBar->pageStep()); executed (the execution status of this line is deduced): scrollBar->setPageStep(oldBar->pageStep()); | - |
266 | scrollBar->setSingleStep(oldBar->singleStep()); executed (the execution status of this line is deduced): scrollBar->setSingleStep(oldBar->singleStep()); | - |
267 | scrollBar->setSliderDown(oldBar->isSliderDown()); executed (the execution status of this line is deduced): scrollBar->setSliderDown(oldBar->isSliderDown()); | - |
268 | scrollBar->setSliderPosition(oldBar->sliderPosition()); executed (the execution status of this line is deduced): scrollBar->setSliderPosition(oldBar->sliderPosition()); | - |
269 | scrollBar->setTracking(oldBar->hasTracking()); executed (the execution status of this line is deduced): scrollBar->setTracking(oldBar->hasTracking()); | - |
270 | scrollBar->setValue(oldBar->value()); executed (the execution status of this line is deduced): scrollBar->setValue(oldBar->value()); | - |
271 | scrollBar->installEventFilter(q); executed (the execution status of this line is deduced): scrollBar->installEventFilter(q); | - |
272 | oldBar->removeEventFilter(q); executed (the execution status of this line is deduced): oldBar->removeEventFilter(q); | - |
273 | delete oldBar; executed (the execution status of this line is deduced): delete oldBar; | - |
274 | | - |
275 | QObject::connect(scrollBar, SIGNAL(valueChanged(int)), executed (the execution status of this line is deduced): QObject::connect(scrollBar, "2""valueChanged(int)", | - |
276 | q, horizontal ? SLOT(_q_hslide(int)) : SLOT(_q_vslide(int))); executed (the execution status of this line is deduced): q, horizontal ? "1""_q_hslide(int)" : "1""_q_vslide(int)"); | - |
277 | QObject::connect(scrollBar, SIGNAL(rangeChanged(int,int)), executed (the execution status of this line is deduced): QObject::connect(scrollBar, "2""rangeChanged(int,int)", | - |
278 | q, SLOT(_q_showOrHideScrollBars()), Qt::QueuedConnection); executed (the execution status of this line is deduced): q, "1""_q_showOrHideScrollBars()", Qt::QueuedConnection); | - |
279 | } executed: } Execution Count:8 | 8 |
280 | | - |
281 | void QAbstractScrollAreaPrivate::init() | - |
282 | { | - |
283 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
284 | viewport = new QWidget(q); executed (the execution status of this line is deduced): viewport = new QWidget(q); | - |
285 | viewport->setObjectName(QLatin1String("qt_scrollarea_viewport")); executed (the execution status of this line is deduced): viewport->setObjectName(QLatin1String("qt_scrollarea_viewport")); | - |
286 | viewport->setBackgroundRole(QPalette::Base); executed (the execution status of this line is deduced): viewport->setBackgroundRole(QPalette::Base); | - |
287 | viewport->setAutoFillBackground(true); executed (the execution status of this line is deduced): viewport->setAutoFillBackground(true); | - |
288 | scrollBarContainers[Qt::Horizontal] = new QAbstractScrollAreaScrollBarContainer(Qt::Horizontal, q); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal] = new QAbstractScrollAreaScrollBarContainer(Qt::Horizontal, q); | - |
289 | scrollBarContainers[Qt::Horizontal]->setObjectName(QLatin1String("qt_scrollarea_hcontainer")); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal]->setObjectName(QLatin1String("qt_scrollarea_hcontainer")); | - |
290 | hbar = scrollBarContainers[Qt::Horizontal]->scrollBar; executed (the execution status of this line is deduced): hbar = scrollBarContainers[Qt::Horizontal]->scrollBar; | - |
291 | hbar->setRange(0,0); executed (the execution status of this line is deduced): hbar->setRange(0,0); | - |
292 | scrollBarContainers[Qt::Horizontal]->setVisible(false); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal]->setVisible(false); | - |
293 | hbar->installEventFilter(q); executed (the execution status of this line is deduced): hbar->installEventFilter(q); | - |
294 | QObject::connect(hbar, SIGNAL(valueChanged(int)), q, SLOT(_q_hslide(int))); executed (the execution status of this line is deduced): QObject::connect(hbar, "2""valueChanged(int)", q, "1""_q_hslide(int)"); | - |
295 | QObject::connect(hbar, SIGNAL(rangeChanged(int,int)), q, SLOT(_q_showOrHideScrollBars()), Qt::QueuedConnection); executed (the execution status of this line is deduced): QObject::connect(hbar, "2""rangeChanged(int,int)", q, "1""_q_showOrHideScrollBars()", Qt::QueuedConnection); | - |
296 | scrollBarContainers[Qt::Vertical] = new QAbstractScrollAreaScrollBarContainer(Qt::Vertical, q); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical] = new QAbstractScrollAreaScrollBarContainer(Qt::Vertical, q); | - |
297 | scrollBarContainers[Qt::Vertical]->setObjectName(QLatin1String("qt_scrollarea_vcontainer")); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical]->setObjectName(QLatin1String("qt_scrollarea_vcontainer")); | - |
298 | vbar = scrollBarContainers[Qt::Vertical]->scrollBar; executed (the execution status of this line is deduced): vbar = scrollBarContainers[Qt::Vertical]->scrollBar; | - |
299 | vbar->setRange(0,0); executed (the execution status of this line is deduced): vbar->setRange(0,0); | - |
300 | scrollBarContainers[Qt::Vertical]->setVisible(false); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical]->setVisible(false); | - |
301 | vbar->installEventFilter(q); executed (the execution status of this line is deduced): vbar->installEventFilter(q); | - |
302 | QObject::connect(vbar, SIGNAL(valueChanged(int)), q, SLOT(_q_vslide(int))); executed (the execution status of this line is deduced): QObject::connect(vbar, "2""valueChanged(int)", q, "1""_q_vslide(int)"); | - |
303 | QObject::connect(vbar, SIGNAL(rangeChanged(int,int)), q, SLOT(_q_showOrHideScrollBars()), Qt::QueuedConnection); executed (the execution status of this line is deduced): QObject::connect(vbar, "2""rangeChanged(int,int)", q, "1""_q_showOrHideScrollBars()", Qt::QueuedConnection); | - |
304 | viewportFilter.reset(new QAbstractScrollAreaFilter(this)); executed (the execution status of this line is deduced): viewportFilter.reset(new QAbstractScrollAreaFilter(this)); | - |
305 | viewport->installEventFilter(viewportFilter.data()); executed (the execution status of this line is deduced): viewport->installEventFilter(viewportFilter.data()); | - |
306 | viewport->setFocusProxy(q); executed (the execution status of this line is deduced): viewport->setFocusProxy(q); | - |
307 | q->setFocusPolicy(Qt::WheelFocus); executed (the execution status of this line is deduced): q->setFocusPolicy(Qt::WheelFocus); | - |
308 | q->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken); executed (the execution status of this line is deduced): q->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken); | - |
309 | q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); executed (the execution status of this line is deduced): q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); | - |
310 | layoutChildren(); executed (the execution status of this line is deduced): layoutChildren(); | - |
311 | #ifndef Q_WS_MAC | - |
312 | # ifndef QT_NO_GESTURES | - |
313 | viewport->grabGesture(Qt::PanGesture); executed (the execution status of this line is deduced): viewport->grabGesture(Qt::PanGesture); | - |
314 | # endif | - |
315 | #endif | - |
316 | } executed: } Execution Count:5100 | 5100 |
317 | | - |
318 | #ifdef Q_WS_WIN | - |
319 | void QAbstractScrollAreaPrivate::setSingleFingerPanEnabled(bool on) | - |
320 | { | - |
321 | singleFingerPanEnabled = on; | - |
322 | QWidgetPrivate *dd = static_cast<QWidgetPrivate *>(QObjectPrivate::get(viewport)); | - |
323 | if (dd) | - |
324 | dd->winSetupGestures(); | - |
325 | } | - |
326 | #endif // Q_WS_WIN | - |
327 | | - |
328 | void QAbstractScrollAreaPrivate::layoutChildren() | - |
329 | { | - |
330 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
331 | bool transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, vbar ? vbar : hbar); executed (the execution status of this line is deduced): bool transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, vbar ? vbar : hbar); | - |
332 | bool needh = (hbarpolicy != Qt::ScrollBarAlwaysOff) && ((hbarpolicy == Qt::ScrollBarAlwaysOn && !transient) evaluated: (hbarpolicy != Qt::ScrollBarAlwaysOff) yes Evaluation Count:15161 | yes Evaluation Count:13037 |
evaluated: hbarpolicy == Qt::ScrollBarAlwaysOn yes Evaluation Count:225 | yes Evaluation Count:14936 |
partially evaluated: !transient yes Evaluation Count:225 | no Evaluation Count:0 |
| 0-15161 |
333 | || ((hbarpolicy == Qt::ScrollBarAsNeeded || transient) partially evaluated: hbarpolicy == Qt::ScrollBarAsNeeded yes Evaluation Count:14936 | no Evaluation Count:0 |
never evaluated: transient | 0-14936 |
334 | && hbar->minimum() < hbar->maximum() && !hbar->sizeHint().isEmpty())); evaluated: hbar->minimum() < hbar->maximum() yes Evaluation Count:2334 | yes Evaluation Count:12602 |
partially evaluated: !hbar->sizeHint().isEmpty() yes Evaluation Count:2334 | no Evaluation Count:0 |
| 0-12602 |
335 | | - |
336 | bool needv = (vbarpolicy != Qt::ScrollBarAlwaysOff) && ((vbarpolicy == Qt::ScrollBarAlwaysOn && !transient) evaluated: (vbarpolicy != Qt::ScrollBarAlwaysOff) yes Evaluation Count:15463 | yes Evaluation Count:12735 |
evaluated: vbarpolicy == Qt::ScrollBarAlwaysOn yes Evaluation Count:411 | yes Evaluation Count:15052 |
partially evaluated: !transient yes Evaluation Count:411 | no Evaluation Count:0 |
| 0-15463 |
337 | || ((vbarpolicy == Qt::ScrollBarAsNeeded || transient) partially evaluated: vbarpolicy == Qt::ScrollBarAsNeeded yes Evaluation Count:15052 | no Evaluation Count:0 |
never evaluated: transient | 0-15052 |
338 | && vbar->minimum() < vbar->maximum() && !vbar->sizeHint().isEmpty())); evaluated: vbar->minimum() < vbar->maximum() yes Evaluation Count:3031 | yes Evaluation Count:12021 |
partially evaluated: !vbar->sizeHint().isEmpty() yes Evaluation Count:3031 | no Evaluation Count:0 |
| 0-12021 |
339 | | - |
340 | QStyleOption opt(0); executed (the execution status of this line is deduced): QStyleOption opt(0); | - |
341 | opt.init(q); executed (the execution status of this line is deduced): opt.init(q); | - |
342 | const int scrollOverlap = q->style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarOverlap, executed (the execution status of this line is deduced): const int scrollOverlap = q->style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarOverlap, | - |
343 | &opt, q); executed (the execution status of this line is deduced): &opt, q); | - |
344 | | - |
345 | #ifdef Q_WS_MAC | - |
346 | QWidget * const window = q->window(); | - |
347 | | - |
348 | // Use small scroll bars for tool windows, to match the native size grip. | - |
349 | bool hbarIsSmall = hbar->testAttribute(Qt::WA_MacSmallSize); | - |
350 | bool vbarIsSmall = vbar->testAttribute(Qt::WA_MacSmallSize); | - |
351 | const Qt::WindowType windowType = window->windowType(); | - |
352 | if (windowType == Qt::Tool) { | - |
353 | if (!hbarIsSmall) { | - |
354 | hbar->setAttribute(Qt::WA_MacMiniSize, false); | - |
355 | hbar->setAttribute(Qt::WA_MacNormalSize, false); | - |
356 | hbar->setAttribute(Qt::WA_MacSmallSize, true); | - |
357 | } | - |
358 | if (!vbarIsSmall) { | - |
359 | vbar->setAttribute(Qt::WA_MacMiniSize, false); | - |
360 | vbar->setAttribute(Qt::WA_MacNormalSize, false); | - |
361 | vbar->setAttribute(Qt::WA_MacSmallSize, true); | - |
362 | } | - |
363 | } else { | - |
364 | if (hbarIsSmall) { | - |
365 | hbar->setAttribute(Qt::WA_MacMiniSize, false); | - |
366 | hbar->setAttribute(Qt::WA_MacNormalSize, false); | - |
367 | hbar->setAttribute(Qt::WA_MacSmallSize, false); | - |
368 | } | - |
369 | if (vbarIsSmall) { | - |
370 | vbar->setAttribute(Qt::WA_MacMiniSize, false); | - |
371 | vbar->setAttribute(Qt::WA_MacNormalSize, false); | - |
372 | vbar->setAttribute(Qt::WA_MacSmallSize, false); | - |
373 | } | - |
374 | } | - |
375 | #endif | - |
376 | | - |
377 | const int hsbExt = hbar->sizeHint().height(); executed (the execution status of this line is deduced): const int hsbExt = hbar->sizeHint().height(); | - |
378 | const int vsbExt = vbar->sizeHint().width(); executed (the execution status of this line is deduced): const int vsbExt = vbar->sizeHint().width(); | - |
379 | const QPoint extPoint(vsbExt, hsbExt); executed (the execution status of this line is deduced): const QPoint extPoint(vsbExt, hsbExt); | - |
380 | const QSize extSize(vsbExt, hsbExt); executed (the execution status of this line is deduced): const QSize extSize(vsbExt, hsbExt); | - |
381 | | - |
382 | const QRect widgetRect = q->rect(); executed (the execution status of this line is deduced): const QRect widgetRect = q->rect(); | - |
383 | | - |
384 | const bool hasCornerWidget = (cornerWidget != 0); executed (the execution status of this line is deduced): const bool hasCornerWidget = (cornerWidget != 0); | - |
385 | | - |
386 | // If the scroll bars are at the very right and bottom of the window we | - |
387 | // move their positions to be aligned with the size grip. | - |
388 | #ifdef Q_WS_MAC | - |
389 | // Check if a native sizegrip is present. | - |
390 | bool hasMacReverseSizeGrip = false; | - |
391 | bool hasMacSizeGrip = false; | - |
392 | bool nativeGripPresent = false; | - |
393 | if (q->testAttribute(Qt::WA_WState_Created)) | - |
394 | nativeGripPresent = qt_mac_checkForNativeSizeGrip(q); | - |
395 | | - |
396 | if (nativeGripPresent) { | - |
397 | // Look for a native size grip at the visual window bottom right and at the | - |
398 | // absolute window bottom right. In reverse mode, the native size grip does not | - |
399 | // swich side, so we need to check if it is on the "wrong side". | - |
400 | const QPoint scrollAreaBottomRight = q->mapTo(window, widgetRect.bottomRight() - QPoint(frameWidth, frameWidth)); | - |
401 | const QPoint windowBottomRight = window->rect().bottomRight(); | - |
402 | const QPoint visualWindowBottomRight = QStyle::visualPos(opt.direction, opt.rect, windowBottomRight); | - |
403 | const QPoint offset = windowBottomRight - scrollAreaBottomRight; | - |
404 | const QPoint visualOffset = visualWindowBottomRight - scrollAreaBottomRight; | - |
405 | hasMacSizeGrip = (visualOffset.manhattanLength() < vsbExt); | - |
406 | hasMacReverseSizeGrip = (hasMacSizeGrip == false && (offset.manhattanLength() < hsbExt)); | - |
407 | } | - |
408 | #endif | - |
409 | | - |
410 | QPoint cornerOffset((needv && scrollOverlap == 0) ? vsbExt : 0, (needh && scrollOverlap == 0) ? hsbExt : 0); executed (the execution status of this line is deduced): QPoint cornerOffset((needv && scrollOverlap == 0) ? vsbExt : 0, (needh && scrollOverlap == 0) ? hsbExt : 0); | - |
411 | QRect controlsRect; executed (the execution status of this line is deduced): QRect controlsRect; | - |
412 | QRect viewportRect; executed (the execution status of this line is deduced): QRect viewportRect; | - |
413 | | - |
414 | // In FrameOnlyAroundContents mode the frame is drawn between the controls and | - |
415 | // the viewport, else the frame rect is equal to the widget rect. | - |
416 | if ((frameStyle != QFrame::NoFrame) && evaluated: (frameStyle != QFrame::NoFrame) yes Evaluation Count:14796 | yes Evaluation Count:13402 |
| 13402-14796 |
417 | q->style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, &opt, q)) { evaluated: q->style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, &opt, q) yes Evaluation Count:2 | yes Evaluation Count:14794 |
| 2-14794 |
418 | controlsRect = widgetRect; executed (the execution status of this line is deduced): controlsRect = widgetRect; | - |
419 | const int extra = scrollOverlap + q->style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &opt, q); executed (the execution status of this line is deduced): const int extra = scrollOverlap + q->style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &opt, q); | - |
420 | const QPoint cornerExtra(needv ? extra : 0, needh ? extra : 0); executed (the execution status of this line is deduced): const QPoint cornerExtra(needv ? extra : 0, needh ? extra : 0); | - |
421 | QRect frameRect = widgetRect; executed (the execution status of this line is deduced): QRect frameRect = widgetRect; | - |
422 | frameRect.adjust(0, 0, -cornerOffset.x() - cornerExtra.x(), -cornerOffset.y() - cornerExtra.y()); executed (the execution status of this line is deduced): frameRect.adjust(0, 0, -cornerOffset.x() - cornerExtra.x(), -cornerOffset.y() - cornerExtra.y()); | - |
423 | q->setFrameRect(QStyle::visualRect(opt.direction, opt.rect, frameRect)); executed (the execution status of this line is deduced): q->setFrameRect(QStyle::visualRect(opt.direction, opt.rect, frameRect)); | - |
424 | // The frame rect needs to be in logical coords, however we need to flip | - |
425 | // the contentsRect back before passing it on to the viewportRect | - |
426 | // since the viewportRect has its logical coords calculated later. | - |
427 | viewportRect = QStyle::visualRect(opt.direction, opt.rect, q->contentsRect()); executed (the execution status of this line is deduced): viewportRect = QStyle::visualRect(opt.direction, opt.rect, q->contentsRect()); | - |
428 | } else { executed: } Execution Count:2 | 2 |
429 | q->setFrameRect(QStyle::visualRect(opt.direction, opt.rect, widgetRect)); executed (the execution status of this line is deduced): q->setFrameRect(QStyle::visualRect(opt.direction, opt.rect, widgetRect)); | - |
430 | controlsRect = q->contentsRect(); executed (the execution status of this line is deduced): controlsRect = q->contentsRect(); | - |
431 | viewportRect = QRect(controlsRect.topLeft(), controlsRect.bottomRight() - cornerOffset); executed (the execution status of this line is deduced): viewportRect = QRect(controlsRect.topLeft(), controlsRect.bottomRight() - cornerOffset); | - |
432 | } executed: } Execution Count:28196 | 28196 |
433 | | - |
434 | cornerOffset = QPoint(needv ? vsbExt : 0, needh ? hsbExt : 0); executed (the execution status of this line is deduced): cornerOffset = QPoint(needv ? vsbExt : 0, needh ? hsbExt : 0); | - |
435 | | - |
436 | // If we have a corner widget and are only showing one scroll bar, we need to move it | - |
437 | // to make room for the corner widget. | - |
438 | if (hasCornerWidget && (needv || needh) && scrollOverlap == 0) evaluated: hasCornerWidget yes Evaluation Count:2 | yes Evaluation Count:28196 |
evaluated: needv yes Evaluation Count:1 | yes Evaluation Count:1 |
partially evaluated: needh no Evaluation Count:0 | yes Evaluation Count:1 |
partially evaluated: scrollOverlap == 0 yes Evaluation Count:1 | no Evaluation Count:0 |
| 0-28196 |
439 | cornerOffset = extPoint; executed: cornerOffset = extPoint; Execution Count:1 | 1 |
440 | | - |
441 | #ifdef Q_WS_MAC | - |
442 | // Also move the scroll bars if they are covered by the native Mac size grip. | - |
443 | if (hasMacSizeGrip) | - |
444 | cornerOffset = extPoint; | - |
445 | #endif | - |
446 | | - |
447 | // The corner point is where the scroll bar rects, the corner widget rect and the | - |
448 | // viewport rect meets. | - |
449 | const QPoint cornerPoint(controlsRect.bottomRight() + QPoint(1, 1) - cornerOffset); executed (the execution status of this line is deduced): const QPoint cornerPoint(controlsRect.bottomRight() + QPoint(1, 1) - cornerOffset); | - |
450 | | - |
451 | // Some styles paints the corner if both scorllbars are showing and there is | - |
452 | // no corner widget. Also, on the Mac we paint if there is a native | - |
453 | // (transparent) sizegrip in the area where a corner widget would be. | - |
454 | if ((needv && needh && hasCornerWidget == false && scrollOverlap == 0) evaluated: needv yes Evaluation Count:3442 | yes Evaluation Count:24756 |
evaluated: needh yes Evaluation Count:1733 | yes Evaluation Count:1709 |
evaluated: hasCornerWidget == false yes Evaluation Count:1732 | yes Evaluation Count:1 |
partially evaluated: scrollOverlap == 0 yes Evaluation Count:1732 | no Evaluation Count:0 |
| 0-24756 |
455 | || ((needv || needh) evaluated: needv yes Evaluation Count:1710 | yes Evaluation Count:24756 |
evaluated: needh yes Evaluation Count:826 | yes Evaluation Count:23930 |
| 826-24756 |
456 | #ifdef Q_WS_MAC executed (the execution status of this line is deduced):
| - |
457 | && hasMacSizeGrip executed (the execution status of this line is deduced):
| - |
458 | #endif executed (the execution status of this line is deduced):
| - |
459 | ) executed (the execution status of this line is deduced): ) | - |
460 | ) { | - |
461 | cornerPaintingRect = QStyle::visualRect(opt.direction, opt.rect, QRect(cornerPoint, extSize)); executed (the execution status of this line is deduced): cornerPaintingRect = QStyle::visualRect(opt.direction, opt.rect, QRect(cornerPoint, extSize)); | - |
462 | } else { executed: } Execution Count:4268 | 4268 |
463 | cornerPaintingRect = QRect(); executed (the execution status of this line is deduced): cornerPaintingRect = QRect(); | - |
464 | } executed: } Execution Count:23930 | 23930 |
465 | | - |
466 | #ifdef Q_WS_MAC | - |
467 | if (hasMacReverseSizeGrip) | - |
468 | reverseCornerPaintingRect = QRect(controlsRect.bottomRight() + QPoint(1, 1) - extPoint, extSize); | - |
469 | else | - |
470 | reverseCornerPaintingRect = QRect(); | - |
471 | #endif | - |
472 | | - |
473 | // move the scrollbars away from top/left headers | - |
474 | int vHeaderRight = 0; executed (the execution status of this line is deduced): int vHeaderRight = 0; | - |
475 | int hHeaderBottom = 0; executed (the execution status of this line is deduced): int hHeaderBottom = 0; | - |
476 | if (scrollOverlap > 0 && (needv || needh)) { partially evaluated: scrollOverlap > 0 no Evaluation Count:0 | yes Evaluation Count:28198 |
never evaluated: needv never evaluated: needh | 0-28198 |
477 | const QList<QHeaderView *> headers = q->findChildren<QHeaderView*>(); never executed (the execution status of this line is deduced): const QList<QHeaderView *> headers = q->findChildren<QHeaderView*>(); | - |
478 | if (headers.count() <= 2) { never evaluated: headers.count() <= 2 | 0 |
479 | Q_FOREACH (const QHeaderView *header, headers) { never executed (the execution status of this line is deduced): for (QForeachContainer<__typeof__(headers)> _container_(headers); !_container_.brk && _container_.i != _container_.e; __extension__ ({ ++_container_.brk; ++_container_.i; })) for (const QHeaderView *header = *_container_.i;; __extension__ ({--_container_.brk; break;})) { | - |
480 | const QRect geo = header->geometry(); never executed (the execution status of this line is deduced): const QRect geo = header->geometry(); | - |
481 | if (header->orientation() == Qt::Vertical && header->isVisible() && QStyle::visualRect(opt.direction, opt.rect, geo).left() <= opt.rect.width() / 2) never evaluated: header->orientation() == Qt::Vertical never evaluated: header->isVisible() never evaluated: QStyle::visualRect(opt.direction, opt.rect, geo).left() <= opt.rect.width() / 2 | 0 |
482 | vHeaderRight = QStyle::visualRect(opt.direction, opt.rect, geo).right(); never executed: vHeaderRight = QStyle::visualRect(opt.direction, opt.rect, geo).right(); | 0 |
483 | else if (header->orientation() == Qt::Horizontal && header->isVisible() && geo.top() <= q->frameWidth()) never evaluated: header->orientation() == Qt::Horizontal never evaluated: header->isVisible() never evaluated: geo.top() <= q->frameWidth() | 0 |
484 | hHeaderBottom = geo.bottom(); never executed: hHeaderBottom = geo.bottom(); | 0 |
485 | } | - |
486 | } | 0 |
487 | } | 0 |
488 | | - |
489 | if (needh) { evaluated: needh yes Evaluation Count:2559 | yes Evaluation Count:25639 |
| 2559-25639 |
490 | QRect horizontalScrollBarRect(QPoint(controlsRect.left() + vHeaderRight, cornerPoint.y()), QPoint(cornerPoint.x() - 1, controlsRect.bottom())); executed (the execution status of this line is deduced): QRect horizontalScrollBarRect(QPoint(controlsRect.left() + vHeaderRight, cornerPoint.y()), QPoint(cornerPoint.x() - 1, controlsRect.bottom())); | - |
491 | #ifdef Q_WS_MAC | - |
492 | if (hasMacReverseSizeGrip) | - |
493 | horizontalScrollBarRect.adjust(vsbExt, 0, 0, 0); | - |
494 | #endif | - |
495 | #ifdef Q_OS_MAC | - |
496 | if (!hasCornerWidget && QSysInfo::macVersion() >= QSysInfo::MV_10_8 && transient) | - |
497 | horizontalScrollBarRect.adjust(0, 0, cornerOffset.x(), 0); | - |
498 | #endif | - |
499 | scrollBarContainers[Qt::Horizontal]->setGeometry(QStyle::visualRect(opt.direction, opt.rect, horizontalScrollBarRect)); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal]->setGeometry(QStyle::visualRect(opt.direction, opt.rect, horizontalScrollBarRect)); | - |
500 | scrollBarContainers[Qt::Horizontal]->raise(); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal]->raise(); | - |
501 | } executed: } Execution Count:2559 | 2559 |
502 | | - |
503 | if (needv) { evaluated: needv yes Evaluation Count:3442 | yes Evaluation Count:24756 |
| 3442-24756 |
504 | QRect verticalScrollBarRect (QPoint(cornerPoint.x(), controlsRect.top() + hHeaderBottom), QPoint(controlsRect.right(), cornerPoint.y() - 1)); executed (the execution status of this line is deduced): QRect verticalScrollBarRect (QPoint(cornerPoint.x(), controlsRect.top() + hHeaderBottom), QPoint(controlsRect.right(), cornerPoint.y() - 1)); | - |
505 | #ifdef Q_OS_MAC | - |
506 | if (!hasCornerWidget && QSysInfo::macVersion() >= QSysInfo::MV_10_8 && transient) | - |
507 | verticalScrollBarRect.adjust(0, 0, 0, cornerOffset.y()); | - |
508 | #endif | - |
509 | scrollBarContainers[Qt::Vertical]->setGeometry(QStyle::visualRect(opt.direction, opt.rect, verticalScrollBarRect)); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical]->setGeometry(QStyle::visualRect(opt.direction, opt.rect, verticalScrollBarRect)); | - |
510 | scrollBarContainers[Qt::Vertical]->raise(); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical]->raise(); | - |
511 | } executed: } Execution Count:3442 | 3442 |
512 | | - |
513 | if (cornerWidget) { evaluated: cornerWidget yes Evaluation Count:2 | yes Evaluation Count:28196 |
| 2-28196 |
514 | const QRect cornerWidgetRect(cornerPoint, controlsRect.bottomRight()); executed (the execution status of this line is deduced): const QRect cornerWidgetRect(cornerPoint, controlsRect.bottomRight()); | - |
515 | cornerWidget->setGeometry(QStyle::visualRect(opt.direction, opt.rect, cornerWidgetRect)); executed (the execution status of this line is deduced): cornerWidget->setGeometry(QStyle::visualRect(opt.direction, opt.rect, cornerWidgetRect)); | - |
516 | } executed: } Execution Count:2 | 2 |
517 | | - |
518 | scrollBarContainers[Qt::Horizontal]->setVisible(needh); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Horizontal]->setVisible(needh); | - |
519 | scrollBarContainers[Qt::Vertical]->setVisible(needv); executed (the execution status of this line is deduced): scrollBarContainers[Qt::Vertical]->setVisible(needv); | - |
520 | | - |
521 | if (q->isRightToLeft()) evaluated: q->isRightToLeft() yes Evaluation Count:96 | yes Evaluation Count:28102 |
| 96-28102 |
522 | viewportRect.adjust(right, top, -left, -bottom); executed: viewportRect.adjust(right, top, -left, -bottom); Execution Count:96 | 96 |
523 | else | - |
524 | viewportRect.adjust(left, top, -right, -bottom); executed: viewportRect.adjust(left, top, -right, -bottom); Execution Count:28102 | 28102 |
525 | | - |
526 | viewport->setGeometry(QStyle::visualRect(opt.direction, opt.rect, viewportRect)); // resize the viewport last executed (the execution status of this line is deduced): viewport->setGeometry(QStyle::visualRect(opt.direction, opt.rect, viewportRect)); | - |
527 | } executed: } Execution Count:28198 | 28198 |
528 | | - |
529 | /*! | - |
530 | \internal | - |
531 | | - |
532 | Creates a new QAbstractScrollAreaPrivate, \a dd with the given \a parent. | - |
533 | */ | - |
534 | QAbstractScrollArea::QAbstractScrollArea(QAbstractScrollAreaPrivate &dd, QWidget *parent) | - |
535 | :QFrame(dd, parent) | - |
536 | { | - |
537 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
538 | QT_TRY { partially evaluated: true yes Evaluation Count:5097 | no Evaluation Count:0 |
| 0-5097 |
539 | d->init(); executed (the execution status of this line is deduced): d->init(); | - |
540 | } QT_CATCH(...) { executed: } Execution Count:5097 | 5097 |
541 | d->viewportFilter.reset(); never executed (the execution status of this line is deduced): d->viewportFilter.reset(); | - |
542 | QT_RETHROW; never executed (the execution status of this line is deduced): qt_noop(); | - |
543 | } | 0 |
544 | } | - |
545 | | - |
546 | /*! | - |
547 | Constructs a viewport. | - |
548 | | - |
549 | The \a parent argument is sent to the QWidget constructor. | - |
550 | */ | - |
551 | QAbstractScrollArea::QAbstractScrollArea(QWidget *parent) | - |
552 | :QFrame(*new QAbstractScrollAreaPrivate, parent) | - |
553 | { | - |
554 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
555 | QT_TRY { partially evaluated: true yes Evaluation Count:3 | no Evaluation Count:0 |
| 0-3 |
556 | d->init(); executed (the execution status of this line is deduced): d->init(); | - |
557 | } QT_CATCH(...) { executed: } Execution Count:3 | 3 |
558 | d->viewportFilter.reset(); never executed (the execution status of this line is deduced): d->viewportFilter.reset(); | - |
559 | QT_RETHROW; never executed (the execution status of this line is deduced): qt_noop(); | - |
560 | } | 0 |
561 | } | - |
562 | | - |
563 | | - |
564 | /*! | - |
565 | Destroys the viewport. | - |
566 | */ | - |
567 | QAbstractScrollArea::~QAbstractScrollArea() | - |
568 | { | - |
569 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
570 | // reset it here, otherwise we'll have a dangling pointer in ~QWidget | - |
571 | d->viewportFilter.reset(); executed (the execution status of this line is deduced): d->viewportFilter.reset(); | - |
572 | } executed: } Execution Count:4457 | 4457 |
573 | | - |
574 | | - |
575 | /*! | - |
576 | \since 4.2 | - |
577 | Sets the viewport to be the given \a widget. | - |
578 | The QAbstractScrollArea will take ownership of the given \a widget. | - |
579 | | - |
580 | If \a widget is 0, QAbstractScrollArea will assign a new QWidget instance | - |
581 | for the viewport. | - |
582 | | - |
583 | \sa viewport() | - |
584 | */ | - |
585 | void QAbstractScrollArea::setViewport(QWidget *widget) | - |
586 | { | - |
587 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
588 | if (widget != d->viewport) { partially evaluated: widget != d->viewport yes Evaluation Count:889 | no Evaluation Count:0 |
| 0-889 |
589 | QWidget *oldViewport = d->viewport; executed (the execution status of this line is deduced): QWidget *oldViewport = d->viewport; | - |
590 | if (!widget) evaluated: !widget yes Evaluation Count:880 | yes Evaluation Count:9 |
| 9-880 |
591 | widget = new QWidget; executed: widget = new QWidget; Execution Count:880 | 880 |
592 | d->viewport = widget; executed (the execution status of this line is deduced): d->viewport = widget; | - |
593 | d->viewport->setParent(this); executed (the execution status of this line is deduced): d->viewport->setParent(this); | - |
594 | d->viewport->setFocusProxy(this); executed (the execution status of this line is deduced): d->viewport->setFocusProxy(this); | - |
595 | d->viewport->installEventFilter(d->viewportFilter.data()); executed (the execution status of this line is deduced): d->viewport->installEventFilter(d->viewportFilter.data()); | - |
596 | #ifndef Q_WS_MAC | - |
597 | #ifndef QT_NO_GESTURES | - |
598 | d->viewport->grabGesture(Qt::PanGesture); executed (the execution status of this line is deduced): d->viewport->grabGesture(Qt::PanGesture); | - |
599 | #endif | - |
600 | #endif | - |
601 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
602 | if (isVisible()) evaluated: isVisible() yes Evaluation Count:3 | yes Evaluation Count:886 |
| 3-886 |
603 | d->viewport->show(); executed: d->viewport->show(); Execution Count:3 | 3 |
604 | setupViewport(widget); executed (the execution status of this line is deduced): setupViewport(widget); | - |
605 | delete oldViewport; executed (the execution status of this line is deduced): delete oldViewport; | - |
606 | } executed: } Execution Count:889 | 889 |
607 | } executed: } Execution Count:889 | 889 |
608 | | - |
609 | /*! | - |
610 | Returns the viewport widget. | - |
611 | | - |
612 | Use the QScrollArea::widget() function to retrieve the contents of | - |
613 | the viewport widget. | - |
614 | | - |
615 | \sa QScrollArea::widget() | - |
616 | */ | - |
617 | QWidget *QAbstractScrollArea::viewport() const | - |
618 | { | - |
619 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
620 | return d->viewport; executed: return d->viewport; Execution Count:63310 | 63310 |
621 | } | - |
622 | | - |
623 | | - |
624 | /*! | - |
625 | Returns the size of the viewport as if the scroll bars had no valid | - |
626 | scrolling range. | - |
627 | */ | - |
628 | // ### still thinking about the name | - |
629 | QSize QAbstractScrollArea::maximumViewportSize() const | - |
630 | { | - |
631 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
632 | int hsbExt = d->hbar->sizeHint().height(); executed (the execution status of this line is deduced): int hsbExt = d->hbar->sizeHint().height(); | - |
633 | int vsbExt = d->vbar->sizeHint().width(); executed (the execution status of this line is deduced): int vsbExt = d->vbar->sizeHint().width(); | - |
634 | | - |
635 | int f = 2 * d->frameWidth; executed (the execution status of this line is deduced): int f = 2 * d->frameWidth; | - |
636 | QSize max = size() - QSize(f + d->left + d->right, f + d->top + d->bottom); executed (the execution status of this line is deduced): QSize max = size() - QSize(f + d->left + d->right, f + d->top + d->bottom); | - |
637 | if (d->vbarpolicy == Qt::ScrollBarAlwaysOn) evaluated: d->vbarpolicy == Qt::ScrollBarAlwaysOn yes Evaluation Count:596 | yes Evaluation Count:12609 |
| 596-12609 |
638 | max.rwidth() -= vsbExt; executed: max.rwidth() -= vsbExt; Execution Count:596 | 596 |
639 | if (d->hbarpolicy == Qt::ScrollBarAlwaysOn) evaluated: d->hbarpolicy == Qt::ScrollBarAlwaysOn yes Evaluation Count:308 | yes Evaluation Count:12897 |
| 308-12897 |
640 | max.rheight() -= hsbExt; executed: max.rheight() -= hsbExt; Execution Count:308 | 308 |
641 | return max; executed: return max; Execution Count:13205 | 13205 |
642 | } | - |
643 | | - |
644 | /*! | - |
645 | \property QAbstractScrollArea::verticalScrollBarPolicy | - |
646 | \brief the policy for the vertical scroll bar | - |
647 | | - |
648 | The default policy is Qt::ScrollBarAsNeeded. | - |
649 | | - |
650 | \sa horizontalScrollBarPolicy | - |
651 | */ | - |
652 | | - |
653 | Qt::ScrollBarPolicy QAbstractScrollArea::verticalScrollBarPolicy() const | - |
654 | { | - |
655 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
656 | return d->vbarpolicy; executed: return d->vbarpolicy; Execution Count:47 | 47 |
657 | } | - |
658 | | - |
659 | void QAbstractScrollArea::setVerticalScrollBarPolicy(Qt::ScrollBarPolicy policy) | - |
660 | { | - |
661 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
662 | const Qt::ScrollBarPolicy oldPolicy = d->vbarpolicy; executed (the execution status of this line is deduced): const Qt::ScrollBarPolicy oldPolicy = d->vbarpolicy; | - |
663 | d->vbarpolicy = policy; executed (the execution status of this line is deduced): d->vbarpolicy = policy; | - |
664 | if (isVisible()) evaluated: isVisible() yes Evaluation Count:2 | yes Evaluation Count:2374 |
| 2-2374 |
665 | d->layoutChildren(); executed: d->layoutChildren(); Execution Count:2 | 2 |
666 | if (oldPolicy != d->vbarpolicy) evaluated: oldPolicy != d->vbarpolicy yes Evaluation Count:2273 | yes Evaluation Count:103 |
| 103-2273 |
667 | d->scrollBarPolicyChanged(Qt::Vertical, d->vbarpolicy); executed: d->scrollBarPolicyChanged(Qt::Vertical, d->vbarpolicy); Execution Count:2273 | 2273 |
668 | } executed: } Execution Count:2376 | 2376 |
669 | | - |
670 | | - |
671 | /*! | - |
672 | Returns the vertical scroll bar. | - |
673 | | - |
674 | \sa verticalScrollBarPolicy, horizontalScrollBar() | - |
675 | */ | - |
676 | QScrollBar *QAbstractScrollArea::verticalScrollBar() const | - |
677 | { | - |
678 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
679 | return d->vbar; executed: return d->vbar; Execution Count:61137 | 61137 |
680 | } | - |
681 | | - |
682 | /*! | - |
683 | \since 4.2 | - |
684 | Replaces the existing vertical scroll bar with \a scrollBar, and sets all | - |
685 | the former scroll bar's slider properties on the new scroll bar. The former | - |
686 | scroll bar is then deleted. | - |
687 | | - |
688 | QAbstractScrollArea already provides vertical and horizontal scroll bars by | - |
689 | default. You can call this function to replace the default vertical | - |
690 | scroll bar with your own custom scroll bar. | - |
691 | | - |
692 | \sa verticalScrollBar(), setHorizontalScrollBar() | - |
693 | */ | - |
694 | void QAbstractScrollArea::setVerticalScrollBar(QScrollBar *scrollBar) | - |
695 | { | - |
696 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
697 | if (!scrollBar) { partially evaluated: !scrollBar no Evaluation Count:0 | yes Evaluation Count:4 |
| 0-4 |
698 | qWarning("QAbstractScrollArea::setVerticalScrollBar: Cannot set a null scroll bar"); never executed (the execution status of this line is deduced): QMessageLogger("widgets/qabstractscrollarea.cpp", 698, __PRETTY_FUNCTION__).warning("QAbstractScrollArea::setVerticalScrollBar: Cannot set a null scroll bar"); | - |
699 | return; | 0 |
700 | } | - |
701 | | - |
702 | d->replaceScrollBar(scrollBar, Qt::Vertical); executed (the execution status of this line is deduced): d->replaceScrollBar(scrollBar, Qt::Vertical); | - |
703 | } executed: } Execution Count:4 | 4 |
704 | | - |
705 | /*! | - |
706 | \property QAbstractScrollArea::horizontalScrollBarPolicy | - |
707 | \brief the policy for the horizontal scroll bar | - |
708 | | - |
709 | The default policy is Qt::ScrollBarAsNeeded. | - |
710 | | - |
711 | \sa verticalScrollBarPolicy | - |
712 | */ | - |
713 | | - |
714 | Qt::ScrollBarPolicy QAbstractScrollArea::horizontalScrollBarPolicy() const | - |
715 | { | - |
716 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
717 | return d->hbarpolicy; executed: return d->hbarpolicy; Execution Count:1216 | 1216 |
718 | } | - |
719 | | - |
720 | void QAbstractScrollArea::setHorizontalScrollBarPolicy(Qt::ScrollBarPolicy policy) | - |
721 | { | - |
722 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
723 | const Qt::ScrollBarPolicy oldPolicy = d->hbarpolicy; executed (the execution status of this line is deduced): const Qt::ScrollBarPolicy oldPolicy = d->hbarpolicy; | - |
724 | d->hbarpolicy = policy; executed (the execution status of this line is deduced): d->hbarpolicy = policy; | - |
725 | if (isVisible()) evaluated: isVisible() yes Evaluation Count:2 | yes Evaluation Count:2736 |
| 2-2736 |
726 | d->layoutChildren(); executed: d->layoutChildren(); Execution Count:2 | 2 |
727 | if (oldPolicy != d->hbarpolicy) evaluated: oldPolicy != d->hbarpolicy yes Evaluation Count:2635 | yes Evaluation Count:103 |
| 103-2635 |
728 | d->scrollBarPolicyChanged(Qt::Horizontal, d->hbarpolicy); executed: d->scrollBarPolicyChanged(Qt::Horizontal, d->hbarpolicy); Execution Count:2635 | 2635 |
729 | } executed: } Execution Count:2738 | 2738 |
730 | | - |
731 | /*! | - |
732 | Returns the horizontal scroll bar. | - |
733 | | - |
734 | \sa horizontalScrollBarPolicy, verticalScrollBar() | - |
735 | */ | - |
736 | QScrollBar *QAbstractScrollArea::horizontalScrollBar() const | - |
737 | { | - |
738 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
739 | return d->hbar; executed: return d->hbar; Execution Count:77669 | 77669 |
740 | } | - |
741 | | - |
742 | /*! | - |
743 | \since 4.2 | - |
744 | | - |
745 | Replaces the existing horizontal scroll bar with \a scrollBar, and sets all | - |
746 | the former scroll bar's slider properties on the new scroll bar. The former | - |
747 | scroll bar is then deleted. | - |
748 | | - |
749 | QAbstractScrollArea already provides horizontal and vertical scroll bars by | - |
750 | default. You can call this function to replace the default horizontal | - |
751 | scroll bar with your own custom scroll bar. | - |
752 | | - |
753 | \sa horizontalScrollBar(), setVerticalScrollBar() | - |
754 | */ | - |
755 | void QAbstractScrollArea::setHorizontalScrollBar(QScrollBar *scrollBar) | - |
756 | { | - |
757 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
758 | if (!scrollBar) { partially evaluated: !scrollBar no Evaluation Count:0 | yes Evaluation Count:4 |
| 0-4 |
759 | qWarning("QAbstractScrollArea::setHorizontalScrollBar: Cannot set a null scroll bar"); never executed (the execution status of this line is deduced): QMessageLogger("widgets/qabstractscrollarea.cpp", 759, __PRETTY_FUNCTION__).warning("QAbstractScrollArea::setHorizontalScrollBar: Cannot set a null scroll bar"); | - |
760 | return; | 0 |
761 | } | - |
762 | | - |
763 | d->replaceScrollBar(scrollBar, Qt::Horizontal); executed (the execution status of this line is deduced): d->replaceScrollBar(scrollBar, Qt::Horizontal); | - |
764 | } executed: } Execution Count:4 | 4 |
765 | | - |
766 | /*! | - |
767 | \since 4.2 | - |
768 | | - |
769 | Returns the widget in the corner between the two scroll bars. | - |
770 | | - |
771 | By default, no corner widget is present. | - |
772 | */ | - |
773 | QWidget *QAbstractScrollArea::cornerWidget() const | - |
774 | { | - |
775 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
776 | return d->cornerWidget; executed: return d->cornerWidget; Execution Count:70 | 70 |
777 | } | - |
778 | | - |
779 | /*! | - |
780 | \since 4.2 | - |
781 | | - |
782 | Sets the widget in the corner between the two scroll bars to be | - |
783 | \a widget. | - |
784 | | - |
785 | You will probably also want to set at least one of the scroll bar | - |
786 | modes to \c AlwaysOn. | - |
787 | | - |
788 | Passing 0 shows no widget in the corner. | - |
789 | | - |
790 | Any previous corner widget is hidden. | - |
791 | | - |
792 | You may call setCornerWidget() with the same widget at different | - |
793 | times. | - |
794 | | - |
795 | All widgets set here will be deleted by the scroll area when it is | - |
796 | destroyed unless you separately reparent the widget after setting | - |
797 | some other corner widget (or 0). | - |
798 | | - |
799 | Any \e newly set widget should have no current parent. | - |
800 | | - |
801 | By default, no corner widget is present. | - |
802 | | - |
803 | \sa horizontalScrollBarPolicy, horizontalScrollBarPolicy | - |
804 | */ | - |
805 | void QAbstractScrollArea::setCornerWidget(QWidget *widget) | - |
806 | { | - |
807 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
808 | QWidget* oldWidget = d->cornerWidget; executed (the execution status of this line is deduced): QWidget* oldWidget = d->cornerWidget; | - |
809 | if (oldWidget != widget) { partially evaluated: oldWidget != widget yes Evaluation Count:2 | no Evaluation Count:0 |
| 0-2 |
810 | if (oldWidget) partially evaluated: oldWidget no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
811 | oldWidget->hide(); never executed: oldWidget->hide(); | 0 |
812 | d->cornerWidget = widget; executed (the execution status of this line is deduced): d->cornerWidget = widget; | - |
813 | | - |
814 | if (widget && widget->parentWidget() != this) partially evaluated: widget yes Evaluation Count:2 | no Evaluation Count:0 |
partially evaluated: widget->parentWidget() != this yes Evaluation Count:2 | no Evaluation Count:0 |
| 0-2 |
815 | widget->setParent(this); executed: widget->setParent(this); Execution Count:2 | 2 |
816 | | - |
817 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
818 | if (widget) partially evaluated: widget yes Evaluation Count:2 | no Evaluation Count:0 |
| 0-2 |
819 | widget->show(); executed: widget->show(); Execution Count:2 | 2 |
820 | } else { executed: } Execution Count:2 | 2 |
821 | d->cornerWidget = widget; never executed (the execution status of this line is deduced): d->cornerWidget = widget; | - |
822 | d->layoutChildren(); never executed (the execution status of this line is deduced): d->layoutChildren(); | - |
823 | } | 0 |
824 | } | - |
825 | | - |
826 | /*! | - |
827 | \since 4.2 | - |
828 | Adds \a widget as a scroll bar widget in the location specified | - |
829 | by \a alignment. | - |
830 | | - |
831 | Scroll bar widgets are shown next to the horizontal or vertical | - |
832 | scroll bar, and can be placed on either side of it. If you want | - |
833 | the scroll bar widgets to be always visible, set the | - |
834 | scrollBarPolicy for the corresponding scroll bar to \c AlwaysOn. | - |
835 | | - |
836 | \a alignment must be one of Qt::Alignleft and Qt::AlignRight, | - |
837 | which maps to the horizontal scroll bar, or Qt::AlignTop and | - |
838 | Qt::AlignBottom, which maps to the vertical scroll bar. | - |
839 | | - |
840 | A scroll bar widget can be removed by either re-parenting the | - |
841 | widget or deleting it. It's also possible to hide a widget with | - |
842 | QWidget::hide() | - |
843 | | - |
844 | The scroll bar widget will be resized to fit the scroll bar | - |
845 | geometry for the current style. The following describes the case | - |
846 | for scroll bar widgets on the horizontal scroll bar: | - |
847 | | - |
848 | The height of the widget will be set to match the height of the | - |
849 | scroll bar. To control the width of the widget, use | - |
850 | QWidget::setMinimumWidth and QWidget::setMaximumWidth, or | - |
851 | implement QWidget::sizeHint() and set a horizontal size policy. | - |
852 | If you want a square widget, call | - |
853 | QStyle::pixelMetric(QStyle::PM_ScrollBarExtent) and set the | - |
854 | width to this value. | - |
855 | | - |
856 | \sa scrollBarWidgets() | - |
857 | */ | - |
858 | void QAbstractScrollArea::addScrollBarWidget(QWidget *widget, Qt::Alignment alignment) | - |
859 | { | - |
860 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
861 | | - |
862 | if (widget == 0) partially evaluated: widget == 0 no Evaluation Count:0 | yes Evaluation Count:13 |
| 0-13 |
863 | return; | 0 |
864 | | - |
865 | const Qt::Orientation scrollBarOrientation executed (the execution status of this line is deduced): const Qt::Orientation scrollBarOrientation | - |
866 | = ((alignment & Qt::AlignLeft) || (alignment & Qt::AlignRight)) ? Qt::Horizontal : Qt::Vertical; evaluated: (alignment & Qt::AlignLeft) yes Evaluation Count:3 | yes Evaluation Count:10 |
evaluated: (alignment & Qt::AlignRight) yes Evaluation Count:2 | yes Evaluation Count:8 |
| 2-10 |
867 | const QAbstractScrollAreaScrollBarContainer::LogicalPosition position executed (the execution status of this line is deduced): const QAbstractScrollAreaScrollBarContainer::LogicalPosition position | - |
868 | = ((alignment & Qt::AlignRight) || (alignment & Qt::AlignBottom)) evaluated: (alignment & Qt::AlignRight) yes Evaluation Count:2 | yes Evaluation Count:11 |
evaluated: (alignment & Qt::AlignBottom) yes Evaluation Count:6 | yes Evaluation Count:5 |
| 2-11 |
869 | ? QAbstractScrollAreaScrollBarContainer::LogicalRight : QAbstractScrollAreaScrollBarContainer::LogicalLeft; executed (the execution status of this line is deduced): ? QAbstractScrollAreaScrollBarContainer::LogicalRight : QAbstractScrollAreaScrollBarContainer::LogicalLeft; | - |
870 | d->scrollBarContainers[scrollBarOrientation]->addWidget(widget, position); executed (the execution status of this line is deduced): d->scrollBarContainers[scrollBarOrientation]->addWidget(widget, position); | - |
871 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
872 | if (isHidden() == false) partially evaluated: isHidden() == false yes Evaluation Count:13 | no Evaluation Count:0 |
| 0-13 |
873 | widget->show(); executed: widget->show(); Execution Count:13 | 13 |
874 | } executed: } Execution Count:13 | 13 |
875 | | - |
876 | /*! | - |
877 | \since 4.2 | - |
878 | Returns a list of the currently set scroll bar widgets. \a alignment | - |
879 | can be any combination of the four location flags. | - |
880 | | - |
881 | \sa addScrollBarWidget() | - |
882 | */ | - |
883 | QWidgetList QAbstractScrollArea::scrollBarWidgets(Qt::Alignment alignment) | - |
884 | { | - |
885 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
886 | | - |
887 | QWidgetList list; executed (the execution status of this line is deduced): QWidgetList list; | - |
888 | | - |
889 | if (alignment & Qt::AlignLeft) evaluated: alignment & Qt::AlignLeft yes Evaluation Count:15 | yes Evaluation Count:21 |
| 15-21 |
890 | list += d->scrollBarContainers[Qt::Horizontal]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalLeft); executed: list += d->scrollBarContainers[Qt::Horizontal]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalLeft); Execution Count:15 | 15 |
891 | if (alignment & Qt::AlignRight) evaluated: alignment & Qt::AlignRight yes Evaluation Count:15 | yes Evaluation Count:21 |
| 15-21 |
892 | list += d->scrollBarContainers[Qt::Horizontal]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalRight); executed: list += d->scrollBarContainers[Qt::Horizontal]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalRight); Execution Count:15 | 15 |
893 | if (alignment & Qt::AlignTop) evaluated: alignment & Qt::AlignTop yes Evaluation Count:15 | yes Evaluation Count:21 |
| 15-21 |
894 | list += d->scrollBarContainers[Qt::Vertical]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalLeft); executed: list += d->scrollBarContainers[Qt::Vertical]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalLeft); Execution Count:15 | 15 |
895 | if (alignment & Qt::AlignBottom) evaluated: alignment & Qt::AlignBottom yes Evaluation Count:15 | yes Evaluation Count:21 |
| 15-21 |
896 | list += d->scrollBarContainers[Qt::Vertical]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalRight); executed: list += d->scrollBarContainers[Qt::Vertical]->widgets(QAbstractScrollAreaScrollBarContainer::LogicalRight); Execution Count:15 | 15 |
897 | | - |
898 | return list; executed: return list; Execution Count:36 | 36 |
899 | } | - |
900 | | - |
901 | /*! | - |
902 | Sets the margins around the scrolling area to \a left, \a top, \a | - |
903 | right and \a bottom. This is useful for applications such as | - |
904 | spreadsheets with "locked" rows and columns. The marginal space is | - |
905 | is left blank; put widgets in the unused area. | - |
906 | | - |
907 | Note that this function is frequently called by QTreeView and | - |
908 | QTableView, so margins must be implemented by QAbstractScrollArea | - |
909 | subclasses. Also, if the subclasses are to be used in item views, | - |
910 | they should not call this function. | - |
911 | | - |
912 | By default all margins are zero. | - |
913 | | - |
914 | */ | - |
915 | void QAbstractScrollArea::setViewportMargins(int left, int top, int right, int bottom) | - |
916 | { | - |
917 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
918 | d->left = left; executed (the execution status of this line is deduced): d->left = left; | - |
919 | d->top = top; executed (the execution status of this line is deduced): d->top = top; | - |
920 | d->right = right; executed (the execution status of this line is deduced): d->right = right; | - |
921 | d->bottom = bottom; executed (the execution status of this line is deduced): d->bottom = bottom; | - |
922 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
923 | } executed: } Execution Count:4077 | 4077 |
924 | | - |
925 | /*! | - |
926 | \since 4.6 | - |
927 | Sets \a margins around the scrolling area. This is useful for | - |
928 | applications such as spreadsheets with "locked" rows and columns. | - |
929 | The marginal space is is left blank; put widgets in the unused | - |
930 | area. | - |
931 | | - |
932 | By default all margins are zero. | - |
933 | | - |
934 | */ | - |
935 | void QAbstractScrollArea::setViewportMargins(const QMargins &margins) | - |
936 | { | - |
937 | setViewportMargins(margins.left(), margins.top(), never executed (the execution status of this line is deduced): setViewportMargins(margins.left(), margins.top(), | - |
938 | margins.right(), margins.bottom()); never executed (the execution status of this line is deduced): margins.right(), margins.bottom()); | - |
939 | } | 0 |
940 | | - |
941 | /*! \internal */ | - |
942 | bool QAbstractScrollArea::eventFilter(QObject *o, QEvent *e) | - |
943 | { | - |
944 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
945 | if ((o == d->hbar || o == d->vbar) && (e->type() == QEvent::HoverEnter || e->type() == QEvent::HoverLeave)) { evaluated: o == d->hbar yes Evaluation Count:11647 | yes Evaluation Count:83419 |
evaluated: o == d->vbar yes Evaluation Count:12636 | yes Evaluation Count:70783 |
partially evaluated: e->type() == QEvent::HoverEnter no Evaluation Count:0 | yes Evaluation Count:24283 |
partially evaluated: e->type() == QEvent::HoverLeave no Evaluation Count:0 | yes Evaluation Count:24283 |
| 0-83419 |
946 | Qt::ScrollBarPolicy policy = o == d->hbar ? d->vbarpolicy : d->hbarpolicy; never evaluated: o == d->hbar | 0 |
947 | if (policy == Qt::ScrollBarAsNeeded || style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, d->vbar ? d->vbar : d->hbar)) { never evaluated: policy == Qt::ScrollBarAsNeeded never evaluated: style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, d->vbar ? d->vbar : d->hbar) | 0 |
948 | QScrollBar *sibling = o == d->hbar ? d->vbar : d->hbar; never evaluated: o == d->hbar | 0 |
949 | d->setScrollBarTransient(sibling, e->type() == QEvent::HoverLeave); never executed (the execution status of this line is deduced): d->setScrollBarTransient(sibling, e->type() == QEvent::HoverLeave); | - |
950 | } | 0 |
951 | } | 0 |
952 | return QFrame::eventFilter(o, e); executed: return QFrame::eventFilter(o, e); Execution Count:95066 | 95066 |
953 | } | - |
954 | | - |
955 | /*! | - |
956 | \fn bool QAbstractScrollArea::event(QEvent *event) | - |
957 | | - |
958 | \reimp | - |
959 | | - |
960 | This is the main event handler for the QAbstractScrollArea widget (\e not | - |
961 | the scrolling area viewport()). The specified \a event is a general event | - |
962 | object that may need to be cast to the appropriate class depending on its | - |
963 | type. | - |
964 | | - |
965 | \sa QEvent::type() | - |
966 | */ | - |
967 | bool QAbstractScrollArea::event(QEvent *e) | - |
968 | { | - |
969 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
970 | switch (e->type()) { | - |
971 | case QEvent::AcceptDropsChange: | - |
972 | // There was a chance that with accessibility client we get an | - |
973 | // event before the viewport was created. | - |
974 | // Also, in some cases we might get here from QWidget::event() virtual function which is (indirectly) called | - |
975 | // from the viewport constructor at the time when the d->viewport is not yet initialized even without any | - |
976 | // accessibility client. See qabstractscrollarea autotest for a test case. | - |
977 | if (d->viewport) partially evaluated: d->viewport yes Evaluation Count:1576 | no Evaluation Count:0 |
| 0-1576 |
978 | d->viewport->setAcceptDrops(acceptDrops()); executed: d->viewport->setAcceptDrops(acceptDrops()); Execution Count:1576 | 1576 |
979 | break; executed: break; Execution Count:1576 | 1576 |
980 | case QEvent::MouseTrackingChange: | - |
981 | d->viewport->setMouseTracking(hasMouseTracking()); executed (the execution status of this line is deduced): d->viewport->setMouseTracking(hasMouseTracking()); | - |
982 | break; executed: break; Execution Count:342 | 342 |
983 | case QEvent::Resize: | - |
984 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
985 | break; executed: break; Execution Count:4071 | 4071 |
986 | case QEvent::Paint: { | - |
987 | QStyleOption option; executed (the execution status of this line is deduced): QStyleOption option; | - |
988 | option.initFrom(this); executed (the execution status of this line is deduced): option.initFrom(this); | - |
989 | if (d->cornerPaintingRect.isValid()) { evaluated: d->cornerPaintingRect.isValid() yes Evaluation Count:846 | yes Evaluation Count:851 |
| 846-851 |
990 | option.rect = d->cornerPaintingRect; executed (the execution status of this line is deduced): option.rect = d->cornerPaintingRect; | - |
991 | QPainter p(this); executed (the execution status of this line is deduced): QPainter p(this); | - |
992 | style()->drawPrimitive(QStyle::PE_PanelScrollAreaCorner, &option, &p, this); executed (the execution status of this line is deduced): style()->drawPrimitive(QStyle::PE_PanelScrollAreaCorner, &option, &p, this); | - |
993 | } executed: } Execution Count:846 | 846 |
994 | #ifdef Q_WS_MAC | - |
995 | if (d->reverseCornerPaintingRect.isValid()) { | - |
996 | option.rect = d->reverseCornerPaintingRect; | - |
997 | QPainter p(this); | - |
998 | style()->drawPrimitive(QStyle::PE_PanelScrollAreaCorner, &option, &p, this); | - |
999 | } | - |
1000 | #endif | - |
1001 | } | - |
1002 | QFrame::paintEvent((QPaintEvent*)e); executed (the execution status of this line is deduced): QFrame::paintEvent((QPaintEvent*)e); | - |
1003 | break; executed: break; Execution Count:1697 | 1697 |
1004 | #ifndef QT_NO_CONTEXTMENU | - |
1005 | case QEvent::ContextMenu: | - |
1006 | if (static_cast<QContextMenuEvent *>(e)->reason() == QContextMenuEvent::Keyboard) partially evaluated: static_cast<QContextMenuEvent *>(e)->reason() == QContextMenuEvent::Keyboard no Evaluation Count:0 | yes Evaluation Count:100 |
| 0-100 |
1007 | return QFrame::event(e); never executed: return QFrame::event(e); | 0 |
1008 | e->ignore(); executed (the execution status of this line is deduced): e->ignore(); | - |
1009 | break; executed: break; Execution Count:100 | 100 |
1010 | #endif // QT_NO_CONTEXTMENU | - |
1011 | case QEvent::MouseButtonPress: | - |
1012 | case QEvent::MouseButtonRelease: | - |
1013 | case QEvent::MouseButtonDblClick: | - |
1014 | case QEvent::MouseMove: | - |
1015 | case QEvent::Wheel: | - |
1016 | #ifndef QT_NO_DRAGANDDROP | - |
1017 | case QEvent::Drop: | - |
1018 | case QEvent::DragEnter: | - |
1019 | case QEvent::DragMove: | - |
1020 | case QEvent::DragLeave: | - |
1021 | #endif | - |
1022 | // ignore touch events in case they have been propagated from the viewport | - |
1023 | case QEvent::TouchBegin: | - |
1024 | case QEvent::TouchUpdate: | - |
1025 | case QEvent::TouchEnd: | - |
1026 | return false; executed: return false; Execution Count:10 | 10 |
1027 | #ifndef QT_NO_GESTURES | - |
1028 | case QEvent::Gesture: | - |
1029 | { | - |
1030 | QGestureEvent *ge = static_cast<QGestureEvent *>(e); never executed (the execution status of this line is deduced): QGestureEvent *ge = static_cast<QGestureEvent *>(e); | - |
1031 | QPanGesture *g = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture)); never executed (the execution status of this line is deduced): QPanGesture *g = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture)); | - |
1032 | if (g) { | 0 |
1033 | QScrollBar *hBar = horizontalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *hBar = horizontalScrollBar(); | - |
1034 | QScrollBar *vBar = verticalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *vBar = verticalScrollBar(); | - |
1035 | QPointF delta = g->delta(); never executed (the execution status of this line is deduced): QPointF delta = g->delta(); | - |
1036 | if (!delta.isNull()) { never evaluated: !delta.isNull() | 0 |
1037 | if (QApplication::isRightToLeft()) never evaluated: QApplication::isRightToLeft() | 0 |
1038 | delta.rx() *= -1; never executed: delta.rx() *= -1; | 0 |
1039 | int newX = hBar->value() - delta.x(); never executed (the execution status of this line is deduced): int newX = hBar->value() - delta.x(); | - |
1040 | int newY = vBar->value() - delta.y(); never executed (the execution status of this line is deduced): int newY = vBar->value() - delta.y(); | - |
1041 | hBar->setValue(newX); never executed (the execution status of this line is deduced): hBar->setValue(newX); | - |
1042 | vBar->setValue(newY); never executed (the execution status of this line is deduced): vBar->setValue(newY); | - |
1043 | } | 0 |
1044 | return true; never executed: return true; | 0 |
1045 | } | - |
1046 | return false; never executed: return false; | 0 |
1047 | } | - |
1048 | #endif // QT_NO_GESTURES | - |
1049 | case QEvent::ScrollPrepare: | - |
1050 | { | - |
1051 | QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e); never executed (the execution status of this line is deduced): QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e); | - |
1052 | if (d->canStartScrollingAt(se->startPos().toPoint())) { never evaluated: d->canStartScrollingAt(se->startPos().toPoint()) | 0 |
1053 | QScrollBar *hBar = horizontalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *hBar = horizontalScrollBar(); | - |
1054 | QScrollBar *vBar = verticalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *vBar = verticalScrollBar(); | - |
1055 | | - |
1056 | se->setViewportSize(QSizeF(viewport()->size())); never executed (the execution status of this line is deduced): se->setViewportSize(QSizeF(viewport()->size())); | - |
1057 | se->setContentPosRange(QRectF(0, 0, hBar->maximum(), vBar->maximum())); never executed (the execution status of this line is deduced): se->setContentPosRange(QRectF(0, 0, hBar->maximum(), vBar->maximum())); | - |
1058 | se->setContentPos(QPointF(hBar->value(), vBar->value())); never executed (the execution status of this line is deduced): se->setContentPos(QPointF(hBar->value(), vBar->value())); | - |
1059 | se->accept(); never executed (the execution status of this line is deduced): se->accept(); | - |
1060 | return true; never executed: return true; | 0 |
1061 | } | - |
1062 | return false; never executed: return false; | 0 |
1063 | } | - |
1064 | case QEvent::Scroll: | - |
1065 | { | - |
1066 | QScrollEvent *se = static_cast<QScrollEvent *>(e); never executed (the execution status of this line is deduced): QScrollEvent *se = static_cast<QScrollEvent *>(e); | - |
1067 | | - |
1068 | QScrollBar *hBar = horizontalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *hBar = horizontalScrollBar(); | - |
1069 | QScrollBar *vBar = verticalScrollBar(); never executed (the execution status of this line is deduced): QScrollBar *vBar = verticalScrollBar(); | - |
1070 | hBar->setValue(se->contentPos().x()); never executed (the execution status of this line is deduced): hBar->setValue(se->contentPos().x()); | - |
1071 | vBar->setValue(se->contentPos().y()); never executed (the execution status of this line is deduced): vBar->setValue(se->contentPos().y()); | - |
1072 | | - |
1073 | #ifdef Q_WS_WIN | - |
1074 | typedef BOOL (*PtrBeginPanningFeedback)(HWND); | - |
1075 | typedef BOOL (*PtrUpdatePanningFeedback)(HWND, LONG, LONG, BOOL); | - |
1076 | typedef BOOL (*PtrEndPanningFeedback)(HWND, BOOL); | - |
1077 | | - |
1078 | static PtrBeginPanningFeedback ptrBeginPanningFeedback = 0; | - |
1079 | static PtrUpdatePanningFeedback ptrUpdatePanningFeedback = 0; | - |
1080 | static PtrEndPanningFeedback ptrEndPanningFeedback = 0; | - |
1081 | | - |
1082 | if (!ptrBeginPanningFeedback) | - |
1083 | ptrBeginPanningFeedback = (PtrBeginPanningFeedback) QLibrary::resolve(QLatin1String("UxTheme"), "BeginPanningFeedback"); | - |
1084 | if (!ptrUpdatePanningFeedback) | - |
1085 | ptrUpdatePanningFeedback = (PtrUpdatePanningFeedback) QLibrary::resolve(QLatin1String("UxTheme"), "UpdatePanningFeedback"); | - |
1086 | if (!ptrEndPanningFeedback) | - |
1087 | ptrEndPanningFeedback = (PtrEndPanningFeedback) QLibrary::resolve(QLatin1String("UxTheme"), "EndPanningFeedback"); | - |
1088 | | - |
1089 | if (ptrBeginPanningFeedback && ptrUpdatePanningFeedback && ptrEndPanningFeedback) { | - |
1090 | WId wid = window()->winId(); | - |
1091 | | - |
1092 | if (!se->overshootDistance().isNull() && d->overshoot.isNull()) | - |
1093 | ptrBeginPanningFeedback(wid); | - |
1094 | if (!se->overshootDistance().isNull()) | - |
1095 | ptrUpdatePanningFeedback(wid, -se->overshootDistance().x(), -se->overshootDistance().y(), false); | - |
1096 | if (se->overshootDistance().isNull() && !d->overshoot.isNull()) | - |
1097 | ptrEndPanningFeedback(wid, true); | - |
1098 | } else | - |
1099 | #endif | - |
1100 | { | - |
1101 | QPoint delta = d->overshoot - se->overshootDistance().toPoint(); never executed (the execution status of this line is deduced): QPoint delta = d->overshoot - se->overshootDistance().toPoint(); | - |
1102 | if (!delta.isNull()) never evaluated: !delta.isNull() | 0 |
1103 | viewport()->move(viewport()->pos() + delta); never executed: viewport()->move(viewport()->pos() + delta); | 0 |
1104 | } | - |
1105 | d->overshoot = se->overshootDistance().toPoint(); never executed (the execution status of this line is deduced): d->overshoot = se->overshootDistance().toPoint(); | - |
1106 | | - |
1107 | return true; never executed: return true; | 0 |
1108 | } | - |
1109 | case QEvent::StyleChange: | - |
1110 | case QEvent::LayoutDirectionChange: | - |
1111 | case QEvent::ApplicationLayoutDirectionChange: | - |
1112 | case QEvent::LayoutRequest: | - |
1113 | d->layoutChildren(); executed (the execution status of this line is deduced): d->layoutChildren(); | - |
1114 | // fall through | - |
1115 | default: | - |
1116 | return QFrame::event(e); executed: return QFrame::event(e); Execution Count:94627 | 94627 |
1117 | } | - |
1118 | return true; executed: return true; Execution Count:7786 | 7786 |
1119 | } | - |
1120 | | - |
1121 | /*! | - |
1122 | \fn bool QAbstractScrollArea::viewportEvent(QEvent *event) | - |
1123 | | - |
1124 | The main event handler for the scrolling area (the viewport() widget). | - |
1125 | It handles the \a event specified, and can be called by subclasses to | - |
1126 | provide reasonable default behavior. | - |
1127 | | - |
1128 | Returns true to indicate to the event system that the event has been | - |
1129 | handled, and needs no further processing; otherwise returns false to | - |
1130 | indicate that the event should be propagated further. | - |
1131 | | - |
1132 | You can reimplement this function in a subclass, but we recommend | - |
1133 | using one of the specialized event handlers instead. | - |
1134 | | - |
1135 | Specialized handlers for viewport events are: paintEvent(), | - |
1136 | mousePressEvent(), mouseReleaseEvent(), mouseDoubleClickEvent(), | - |
1137 | mouseMoveEvent(), wheelEvent(), dragEnterEvent(), dragMoveEvent(), | - |
1138 | dragLeaveEvent(), dropEvent(), contextMenuEvent(), and | - |
1139 | resizeEvent(). | - |
1140 | */ | - |
1141 | bool QAbstractScrollArea::viewportEvent(QEvent *e) | - |
1142 | { | - |
1143 | switch (e->type()) { | - |
1144 | case QEvent::Resize: | - |
1145 | case QEvent::Paint: | - |
1146 | case QEvent::MouseButtonPress: | - |
1147 | case QEvent::MouseButtonRelease: | - |
1148 | case QEvent::MouseButtonDblClick: | - |
1149 | case QEvent::TouchBegin: | - |
1150 | case QEvent::TouchUpdate: | - |
1151 | case QEvent::TouchEnd: | - |
1152 | case QEvent::MouseMove: | - |
1153 | case QEvent::ContextMenu: | - |
1154 | #ifndef QT_NO_WHEELEVENT | - |
1155 | case QEvent::Wheel: | - |
1156 | #endif | - |
1157 | #ifndef QT_NO_DRAGANDDROP | - |
1158 | case QEvent::Drop: | - |
1159 | case QEvent::DragEnter: | - |
1160 | case QEvent::DragMove: | - |
1161 | case QEvent::DragLeave: | - |
1162 | #endif | - |
1163 | return QFrame::event(e); executed: return QFrame::event(e); Execution Count:20260 | 20260 |
1164 | case QEvent::LayoutRequest: | - |
1165 | #ifndef QT_NO_GESTURES | - |
1166 | case QEvent::Gesture: | - |
1167 | case QEvent::GestureOverride: | - |
1168 | return event(e); executed: return event(e); Execution Count:204 | 204 |
1169 | #endif | - |
1170 | case QEvent::ScrollPrepare: | - |
1171 | case QEvent::Scroll: | - |
1172 | return event(e); never executed: return event(e); | 0 |
1173 | default: | - |
1174 | break; executed: break; Execution Count:29816 | 29816 |
1175 | } | - |
1176 | return false; // let the viewport widget handle the event executed: return false; Execution Count:29816 | 29816 |
1177 | } | - |
1178 | | - |
1179 | /*! | - |
1180 | \fn void QAbstractScrollArea::resizeEvent(QResizeEvent *event) | - |
1181 | | - |
1182 | This event handler can be reimplemented in a subclass to receive | - |
1183 | resize events (passed in \a event), for the viewport() widget. | - |
1184 | | - |
1185 | When resizeEvent() is called, the viewport already has its new | - |
1186 | geometry: Its new size is accessible through the | - |
1187 | QResizeEvent::size() function, and the old size through | - |
1188 | QResizeEvent::oldSize(). | - |
1189 | | - |
1190 | \sa QWidget::resizeEvent() | - |
1191 | */ | - |
1192 | void QAbstractScrollArea::resizeEvent(QResizeEvent *) | - |
1193 | { | - |
1194 | } | - |
1195 | | - |
1196 | /*! | - |
1197 | \fn void QAbstractScrollArea::paintEvent(QPaintEvent *event) | - |
1198 | | - |
1199 | This event handler can be reimplemented in a subclass to receive | - |
1200 | paint events (passed in \a event), for the viewport() widget. | - |
1201 | | - |
1202 | \note If you open a painter, make sure to open it on the viewport(). | - |
1203 | | - |
1204 | \sa QWidget::paintEvent() | - |
1205 | */ | - |
1206 | void QAbstractScrollArea::paintEvent(QPaintEvent*) | - |
1207 | { | - |
1208 | } | - |
1209 | | - |
1210 | /*! | - |
1211 | This event handler can be reimplemented in a subclass to receive | - |
1212 | mouse press events for the viewport() widget. The event is passed | - |
1213 | in \a e. | - |
1214 | | - |
1215 | \sa QWidget::mousePressEvent() | - |
1216 | */ | - |
1217 | void QAbstractScrollArea::mousePressEvent(QMouseEvent *e) | - |
1218 | { | - |
1219 | e->ignore(); never executed (the execution status of this line is deduced): e->ignore(); | - |
1220 | } | 0 |
1221 | | - |
1222 | /*! | - |
1223 | This event handler can be reimplemented in a subclass to receive | - |
1224 | mouse release events for the viewport() widget. The event is | - |
1225 | passed in \a e. | - |
1226 | | - |
1227 | \sa QWidget::mouseReleaseEvent() | - |
1228 | */ | - |
1229 | void QAbstractScrollArea::mouseReleaseEvent(QMouseEvent *e) | - |
1230 | { | - |
1231 | e->ignore(); never executed (the execution status of this line is deduced): e->ignore(); | - |
1232 | } | 0 |
1233 | | - |
1234 | /*! | - |
1235 | This event handler can be reimplemented in a subclass to receive | - |
1236 | mouse double click events for the viewport() widget. The event is | - |
1237 | passed in \a e. | - |
1238 | | - |
1239 | \sa QWidget::mouseDoubleClickEvent() | - |
1240 | */ | - |
1241 | void QAbstractScrollArea::mouseDoubleClickEvent(QMouseEvent *e) | - |
1242 | { | - |
1243 | e->ignore(); never executed (the execution status of this line is deduced): e->ignore(); | - |
1244 | } | 0 |
1245 | | - |
1246 | /*! | - |
1247 | This event handler can be reimplemented in a subclass to receive | - |
1248 | mouse move events for the viewport() widget. The event is passed | - |
1249 | in \a e. | - |
1250 | | - |
1251 | \sa QWidget::mouseMoveEvent() | - |
1252 | */ | - |
1253 | void QAbstractScrollArea::mouseMoveEvent(QMouseEvent *e) | - |
1254 | { | - |
1255 | e->ignore(); never executed (the execution status of this line is deduced): e->ignore(); | - |
1256 | } | 0 |
1257 | | - |
1258 | /*! | - |
1259 | This event handler can be reimplemented in a subclass to receive | - |
1260 | wheel events for the viewport() widget. The event is passed in \a | - |
1261 | e. | - |
1262 | | - |
1263 | \sa QWidget::wheelEvent() | - |
1264 | */ | - |
1265 | #ifndef QT_NO_WHEELEVENT | - |
1266 | void QAbstractScrollArea::wheelEvent(QWheelEvent *e) | - |
1267 | { | - |
1268 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
1269 | if (static_cast<QWheelEvent*>(e)->orientation() == Qt::Horizontal) evaluated: static_cast<QWheelEvent*>(e)->orientation() == Qt::Horizontal yes Evaluation Count:4 | yes Evaluation Count:5 |
| 4-5 |
1270 | QApplication::sendEvent(d->hbar, e); executed: QApplication::sendEvent(d->hbar, e); Execution Count:4 | 4 |
1271 | else | - |
1272 | QApplication::sendEvent(d->vbar, e); executed: QApplication::sendEvent(d->vbar, e); Execution Count:5 | 5 |
1273 | } | - |
1274 | #endif | - |
1275 | | - |
1276 | #ifndef QT_NO_CONTEXTMENU | - |
1277 | /*! | - |
1278 | This event handler can be reimplemented in a subclass to receive | - |
1279 | context menu events for the viewport() widget. The event is passed | - |
1280 | in \a e. | - |
1281 | | - |
1282 | \sa QWidget::contextMenuEvent() | - |
1283 | */ | - |
1284 | void QAbstractScrollArea::contextMenuEvent(QContextMenuEvent *e) | - |
1285 | { | - |
1286 | e->ignore(); never executed (the execution status of this line is deduced): e->ignore(); | - |
1287 | } | 0 |
1288 | #endif // QT_NO_CONTEXTMENU | - |
1289 | | - |
1290 | /*! | - |
1291 | This function is called with key event \a e when key presses | - |
1292 | occur. It handles PageUp, PageDown, Up, Down, Left, and Right, and | - |
1293 | ignores all other key presses. | - |
1294 | */ | - |
1295 | void QAbstractScrollArea::keyPressEvent(QKeyEvent * e) | - |
1296 | { | - |
1297 | Q_D(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollAreaPrivate * const d = d_func(); | - |
1298 | if (false){ partially evaluated: false no Evaluation Count:0 | yes Evaluation Count:8 |
| 0-8 |
1299 | #ifndef QT_NO_SHORTCUT | - |
1300 | } else if (e == QKeySequence::MoveToPreviousPage) { never executed: } partially evaluated: e == QKeySequence::MoveToPreviousPage no Evaluation Count:0 | yes Evaluation Count:8 |
| 0-8 |
1301 | d->vbar->triggerAction(QScrollBar::SliderPageStepSub); never executed (the execution status of this line is deduced): d->vbar->triggerAction(QScrollBar::SliderPageStepSub); | - |
1302 | } else if (e == QKeySequence::MoveToNextPage) { never executed: } partially evaluated: e == QKeySequence::MoveToNextPage no Evaluation Count:0 | yes Evaluation Count:8 |
| 0-8 |
1303 | d->vbar->triggerAction(QScrollBar::SliderPageStepAdd); never executed (the execution status of this line is deduced): d->vbar->triggerAction(QScrollBar::SliderPageStepAdd); | - |
1304 | #endif | - |
1305 | } else { | 0 |
1306 | #ifdef QT_KEYPAD_NAVIGATION | - |
1307 | if (QApplication::keypadNavigationEnabled() && !hasEditFocus()) { | - |
1308 | e->ignore(); | - |
1309 | return; | - |
1310 | } | - |
1311 | #endif | - |
1312 | switch (e->key()) { | - |
1313 | case Qt::Key_Up: | - |
1314 | d->vbar->triggerAction(QScrollBar::SliderSingleStepSub); never executed (the execution status of this line is deduced): d->vbar->triggerAction(QScrollBar::SliderSingleStepSub); | - |
1315 | break; | 0 |
1316 | case Qt::Key_Down: | - |
1317 | d->vbar->triggerAction(QScrollBar::SliderSingleStepAdd); never executed (the execution status of this line is deduced): d->vbar->triggerAction(QScrollBar::SliderSingleStepAdd); | - |
1318 | break; | 0 |
1319 | case Qt::Key_Left: | - |
1320 | #ifdef QT_KEYPAD_NAVIGATION | - |
1321 | if (QApplication::keypadNavigationEnabled() && hasEditFocus() | - |
1322 | && (!d->hbar->isVisible() || d->hbar->value() == d->hbar->minimum())) { | - |
1323 | //if we aren't using the hbar or we are already at the leftmost point ignore | - |
1324 | e->ignore(); | - |
1325 | return; | - |
1326 | } | - |
1327 | #endif | - |
1328 | d->hbar->triggerAction( executed (the execution status of this line is deduced): d->hbar->triggerAction( | - |
1329 | layoutDirection() == Qt::LeftToRight executed (the execution status of this line is deduced): layoutDirection() == Qt::LeftToRight | - |
1330 | ? QScrollBar::SliderSingleStepSub : QScrollBar::SliderSingleStepAdd); executed (the execution status of this line is deduced): ? QScrollBar::SliderSingleStepSub : QScrollBar::SliderSingleStepAdd); | - |
1331 | break; executed: break; Execution Count:2 | 2 |
1332 | case Qt::Key_Right: | - |
1333 | #ifdef QT_KEYPAD_NAVIGATION | - |
1334 | if (QApplication::keypadNavigationEnabled() && hasEditFocus() | - |
1335 | && (!d->hbar->isVisible() || d->hbar->value() == d->hbar->maximum())) { | - |
1336 | //if we aren't using the hbar or we are already at the rightmost point ignore | - |
1337 | e->ignore(); | - |
1338 | return; | - |
1339 | } | - |
1340 | #endif | - |
1341 | d->hbar->triggerAction( executed (the execution status of this line is deduced): d->hbar->triggerAction( | - |
1342 | layoutDirection() == Qt::LeftToRight executed (the execution status of this line is deduced): layoutDirection() == Qt::LeftToRight | - |
1343 | ? QScrollBar::SliderSingleStepAdd : QScrollBar::SliderSingleStepSub); executed (the execution status of this line is deduced): ? QScrollBar::SliderSingleStepAdd : QScrollBar::SliderSingleStepSub); | - |
1344 | break; executed: break; Execution Count:2 | 2 |
1345 | default: | - |
1346 | e->ignore(); executed (the execution status of this line is deduced): e->ignore(); | - |
1347 | return; executed: return; Execution Count:4 | 4 |
1348 | } | - |
1349 | } executed: } Execution Count:4 | 4 |
1350 | e->accept(); executed (the execution status of this line is deduced): e->accept(); | - |
1351 | } executed: } Execution Count:4 | 4 |
1352 | | - |
1353 | | - |
1354 | #ifndef QT_NO_DRAGANDDROP | - |
1355 | /*! | - |
1356 | \fn void QAbstractScrollArea::dragEnterEvent(QDragEnterEvent *event) | - |
1357 | | - |
1358 | This event handler can be reimplemented in a subclass to receive | - |
1359 | drag enter events (passed in \a event), for the viewport() widget. | - |
1360 | | - |
1361 | \sa QWidget::dragEnterEvent() | - |
1362 | */ | - |
1363 | void QAbstractScrollArea::dragEnterEvent(QDragEnterEvent *) | - |
1364 | { | - |
1365 | } | - |
1366 | | - |
1367 | /*! | - |
1368 | \fn void QAbstractScrollArea::dragMoveEvent(QDragMoveEvent *event) | - |
1369 | | - |
1370 | This event handler can be reimplemented in a subclass to receive | - |
1371 | drag move events (passed in \a event), for the viewport() widget. | - |
1372 | | - |
1373 | \sa QWidget::dragMoveEvent() | - |
1374 | */ | - |
1375 | void QAbstractScrollArea::dragMoveEvent(QDragMoveEvent *) | - |
1376 | { | - |
1377 | } | - |
1378 | | - |
1379 | /*! | - |
1380 | \fn void QAbstractScrollArea::dragLeaveEvent(QDragLeaveEvent *event) | - |
1381 | | - |
1382 | This event handler can be reimplemented in a subclass to receive | - |
1383 | drag leave events (passed in \a event), for the viewport() widget. | - |
1384 | | - |
1385 | \sa QWidget::dragLeaveEvent() | - |
1386 | */ | - |
1387 | void QAbstractScrollArea::dragLeaveEvent(QDragLeaveEvent *) | - |
1388 | { | - |
1389 | } | - |
1390 | | - |
1391 | /*! | - |
1392 | \fn void QAbstractScrollArea::dropEvent(QDropEvent *event) | - |
1393 | | - |
1394 | This event handler can be reimplemented in a subclass to receive | - |
1395 | drop events (passed in \a event), for the viewport() widget. | - |
1396 | | - |
1397 | \sa QWidget::dropEvent() | - |
1398 | */ | - |
1399 | void QAbstractScrollArea::dropEvent(QDropEvent *) | - |
1400 | { | - |
1401 | } | - |
1402 | | - |
1403 | | - |
1404 | #endif | - |
1405 | | - |
1406 | /*! | - |
1407 | This virtual handler is called when the scroll bars are moved by | - |
1408 | \a dx, \a dy, and consequently the viewport's contents should be | - |
1409 | scrolled accordingly. | - |
1410 | | - |
1411 | The default implementation simply calls update() on the entire | - |
1412 | viewport(), subclasses can reimplement this handler for | - |
1413 | optimization purposes, or - like QScrollArea - to move a contents | - |
1414 | widget. The parameters \a dx and \a dy are there for convenience, | - |
1415 | so that the class knows how much should be scrolled (useful | - |
1416 | e.g. when doing pixel-shifts). You may just as well ignore these | - |
1417 | values and scroll directly to the position the scroll bars | - |
1418 | indicate. | - |
1419 | | - |
1420 | Calling this function in order to scroll programmatically is an | - |
1421 | error, use the scroll bars instead (e.g. by calling | - |
1422 | QScrollBar::setValue() directly). | - |
1423 | */ | - |
1424 | void QAbstractScrollArea::scrollContentsBy(int, int) | - |
1425 | { | - |
1426 | viewport()->update(); never executed (the execution status of this line is deduced): viewport()->update(); | - |
1427 | } | 0 |
1428 | | - |
1429 | bool QAbstractScrollAreaPrivate::canStartScrollingAt( const QPoint &startPos ) | - |
1430 | { | - |
1431 | Q_Q(QAbstractScrollArea); never executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
1432 | | - |
1433 | #ifndef QT_NO_GRAPHICSVIEW | - |
1434 | // don't start scrolling when a drag mode has been set. | - |
1435 | // don't start scrolling on a movable item. | - |
1436 | if (QGraphicsView *view = qobject_cast<QGraphicsView *>(q)) { never evaluated: QGraphicsView *view = qobject_cast<QGraphicsView *>(q) | 0 |
1437 | if (view->dragMode() != QGraphicsView::NoDrag) never evaluated: view->dragMode() != QGraphicsView::NoDrag | 0 |
1438 | return false; never executed: return false; | 0 |
1439 | | - |
1440 | QGraphicsItem *childItem = view->itemAt(startPos); never executed (the execution status of this line is deduced): QGraphicsItem *childItem = view->itemAt(startPos); | - |
1441 | | - |
1442 | if (childItem && (childItem->flags() & QGraphicsItem::ItemIsMovable)) never evaluated: childItem never evaluated: (childItem->flags() & QGraphicsItem::ItemIsMovable) | 0 |
1443 | return false; never executed: return false; | 0 |
1444 | } | 0 |
1445 | #endif | - |
1446 | | - |
1447 | // don't start scrolling on a QAbstractSlider | - |
1448 | if (qobject_cast<QAbstractSlider *>(q->viewport()->childAt(startPos))) { never evaluated: qobject_cast<QAbstractSlider *>(q->viewport()->childAt(startPos)) | 0 |
1449 | return false; never executed: return false; | 0 |
1450 | } | - |
1451 | | - |
1452 | return true; never executed: return true; | 0 |
1453 | } | - |
1454 | | - |
1455 | void QAbstractScrollAreaPrivate::flashScrollBars() | - |
1456 | { | - |
1457 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
1458 | bool transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, vbar ? vbar : hbar); executed (the execution status of this line is deduced): bool transient = q->style()->styleHint(QStyle::SH_ScrollBar_Transient, 0, vbar ? vbar : hbar); | - |
1459 | if ((hbarpolicy != Qt::ScrollBarAlwaysOff) && (hbarpolicy == Qt::ScrollBarAsNeeded || transient)) evaluated: (hbarpolicy != Qt::ScrollBarAlwaysOff) yes Evaluation Count:9080 | yes Evaluation Count:122 |
evaluated: hbarpolicy == Qt::ScrollBarAsNeeded yes Evaluation Count:9012 | yes Evaluation Count:68 |
partially evaluated: transient no Evaluation Count:0 | yes Evaluation Count:68 |
| 0-9080 |
1460 | hbar->d_func()->flash(); executed: hbar->d_func()->flash(); Execution Count:9012 | 9012 |
1461 | if ((vbarpolicy != Qt::ScrollBarAlwaysOff) && (vbarpolicy == Qt::ScrollBarAsNeeded || transient)) evaluated: (vbarpolicy != Qt::ScrollBarAlwaysOff) yes Evaluation Count:9142 | yes Evaluation Count:60 |
evaluated: vbarpolicy == Qt::ScrollBarAsNeeded yes Evaluation Count:9014 | yes Evaluation Count:128 |
partially evaluated: transient no Evaluation Count:0 | yes Evaluation Count:128 |
| 0-9142 |
1462 | vbar->d_func()->flash(); executed: vbar->d_func()->flash(); Execution Count:9014 | 9014 |
1463 | } executed: } Execution Count:9202 | 9202 |
1464 | | - |
1465 | void QAbstractScrollAreaPrivate::setScrollBarTransient(QScrollBar *scrollBar, bool transient) | - |
1466 | { | - |
1467 | scrollBar->d_func()->setTransient(transient); never executed (the execution status of this line is deduced): scrollBar->d_func()->setTransient(transient); | - |
1468 | } | 0 |
1469 | | - |
1470 | void QAbstractScrollAreaPrivate::_q_hslide(int x) | - |
1471 | { | - |
1472 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
1473 | int dx = xoffset - x; executed (the execution status of this line is deduced): int dx = xoffset - x; | - |
1474 | xoffset = x; executed (the execution status of this line is deduced): xoffset = x; | - |
1475 | q->scrollContentsBy(dx, 0); executed (the execution status of this line is deduced): q->scrollContentsBy(dx, 0); | - |
1476 | flashScrollBars(); executed (the execution status of this line is deduced): flashScrollBars(); | - |
1477 | } executed: } Execution Count:7058 | 7058 |
1478 | | - |
1479 | void QAbstractScrollAreaPrivate::_q_vslide(int y) | - |
1480 | { | - |
1481 | Q_Q(QAbstractScrollArea); executed (the execution status of this line is deduced): QAbstractScrollArea * const q = q_func(); | - |
1482 | int dy = yoffset - y; executed (the execution status of this line is deduced): int dy = yoffset - y; | - |
1483 | yoffset = y; executed (the execution status of this line is deduced): yoffset = y; | - |
1484 | q->scrollContentsBy(0, dy); executed (the execution status of this line is deduced): q->scrollContentsBy(0, dy); | - |
1485 | flashScrollBars(); executed (the execution status of this line is deduced): flashScrollBars(); | - |
1486 | } executed: } Execution Count:2144 | 2144 |
1487 | | - |
1488 | void QAbstractScrollAreaPrivate::_q_showOrHideScrollBars() | - |
1489 | { | - |
1490 | layoutChildren(); executed (the execution status of this line is deduced): layoutChildren(); | - |
1491 | #ifdef Q_WS_WIN | - |
1492 | // Need to re-subscribe to gestures as the content changes to make sure we | - |
1493 | // enable/disable panning when needed. | - |
1494 | QWidgetPrivate *dd = static_cast<QWidgetPrivate *>(QObjectPrivate::get(viewport)); | - |
1495 | if (dd) | - |
1496 | dd->winSetupGestures(); | - |
1497 | #endif // Q_WS_WIN | - |
1498 | } executed: } Execution Count:1506 | 1506 |
1499 | | - |
1500 | QPoint QAbstractScrollAreaPrivate::contentsOffset() const | - |
1501 | { | - |
1502 | Q_Q(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollArea * const q = q_func(); | - |
1503 | QPoint offset; executed (the execution status of this line is deduced): QPoint offset; | - |
1504 | if (vbar->isVisible()) evaluated: vbar->isVisible() yes Evaluation Count:1412 | yes Evaluation Count:758 |
| 758-1412 |
1505 | offset.setY(vbar->value()); executed: offset.setY(vbar->value()); Execution Count:1412 | 1412 |
1506 | if (hbar->isVisible()) { evaluated: hbar->isVisible() yes Evaluation Count:1237 | yes Evaluation Count:933 |
| 933-1237 |
1507 | if (q->isRightToLeft()) evaluated: q->isRightToLeft() yes Evaluation Count:1 | yes Evaluation Count:1236 |
| 1-1236 |
1508 | offset.setX(hbar->maximum() - hbar->value()); executed: offset.setX(hbar->maximum() - hbar->value()); Execution Count:1 | 1 |
1509 | else | - |
1510 | offset.setX(hbar->value()); executed: offset.setX(hbar->value()); Execution Count:1236 | 1236 |
1511 | } | - |
1512 | return offset; executed: return offset; Execution Count:2170 | 2170 |
1513 | } | - |
1514 | | - |
1515 | /*! | - |
1516 | \reimp | - |
1517 | | - |
1518 | */ | - |
1519 | QSize QAbstractScrollArea::minimumSizeHint() const | - |
1520 | { | - |
1521 | Q_D(const QAbstractScrollArea); executed (the execution status of this line is deduced): const QAbstractScrollAreaPrivate * const d = d_func(); | - |
1522 | int hsbExt = d->hbar->sizeHint().height(); executed (the execution status of this line is deduced): int hsbExt = d->hbar->sizeHint().height(); | - |
1523 | int vsbExt = d->vbar->sizeHint().width(); executed (the execution status of this line is deduced): int vsbExt = d->vbar->sizeHint().width(); | - |
1524 | int extra = 2 * d->frameWidth; executed (the execution status of this line is deduced): int extra = 2 * d->frameWidth; | - |
1525 | QStyleOption opt; executed (the execution status of this line is deduced): QStyleOption opt; | - |
1526 | opt.initFrom(this); executed (the execution status of this line is deduced): opt.initFrom(this); | - |
1527 | if ((d->frameStyle != QFrame::NoFrame) evaluated: (d->frameStyle != QFrame::NoFrame) yes Evaluation Count:2554 | yes Evaluation Count:75 |
| 75-2554 |
1528 | && style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, &opt, this)) { partially evaluated: style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents, &opt, this) no Evaluation Count:0 | yes Evaluation Count:2554 |
| 0-2554 |
1529 | extra += style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &opt, this); never executed (the execution status of this line is deduced): extra += style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing, &opt, this); | - |
1530 | } | 0 |
1531 | return QSize(d->scrollBarContainers[Qt::Horizontal]->sizeHint().width() + vsbExt + extra, executed: return QSize(d->scrollBarContainers[Qt::Horizontal]->sizeHint().width() + vsbExt + extra, d->scrollBarContainers[Qt::Vertical]->sizeHint().height() + hsbExt + extra); Execution Count:2629 | 2629 |
1532 | d->scrollBarContainers[Qt::Vertical]->sizeHint().height() + hsbExt + extra); executed: return QSize(d->scrollBarContainers[Qt::Horizontal]->sizeHint().width() + vsbExt + extra, d->scrollBarContainers[Qt::Vertical]->sizeHint().height() + hsbExt + extra); Execution Count:2629 | 2629 |
1533 | } | - |
1534 | | - |
1535 | /*! | - |
1536 | \reimp | - |
1537 | */ | - |
1538 | QSize QAbstractScrollArea::sizeHint() const | - |
1539 | { | - |
1540 | return QSize(256, 192); executed: return QSize(256, 192); Execution Count:1649 | 1649 |
1541 | #if 0 | - |
1542 | Q_D(const QAbstractScrollArea); | - |
1543 | int h = qMax(10, fontMetrics().height()); | - |
1544 | int f = 2 * d->frameWidth; | - |
1545 | return QSize((6 * h) + f, (4 * h) + f); | - |
1546 | #endif | - |
1547 | } | - |
1548 | | - |
1549 | /*! | - |
1550 | This slot is called by QAbstractScrollArea after setViewport(\a | - |
1551 | viewport) has been called. Reimplement this function in a | - |
1552 | subclass of QAbstractScrollArea to initialize the new \a viewport | - |
1553 | before it is used. | - |
1554 | | - |
1555 | \sa setViewport() | - |
1556 | */ | - |
1557 | void QAbstractScrollArea::setupViewport(QWidget *viewport) | - |
1558 | { | - |
1559 | Q_UNUSED(viewport); executed (the execution status of this line is deduced): (void)viewport;; | - |
1560 | } executed: } Execution Count:1 | 1 |
1561 | | - |
1562 | /*! | - |
1563 | \internal | - |
1564 | | - |
1565 | This method is reserved for future use. | - |
1566 | */ | - |
1567 | QSize QAbstractScrollArea::viewportSizeHint() const | - |
1568 | { | - |
1569 | return QSize(); never executed: return QSize(); | 0 |
1570 | } | - |
1571 | | - |
1572 | QT_END_NAMESPACE | - |
1573 | | - |
1574 | #include "moc_qabstractscrollarea.cpp" | - |
1575 | #include "moc_qabstractscrollarea_p.cpp" | - |
1576 | | - |
1577 | #endif // QT_NO_SCROLLAREA | - |
1578 | | - |
| | |