void TLFrameSequenceLayout::updateContentSize()
{
if ( contentsHeight() < number_of_frame_sequences * 24 )
{
resizeContents( contentsWidth(), number_of_frame_sequences * 24 );
}
else if ( contentsHeight() > number_of_frame_sequences * 24 && contentsHeight() > 90 )
{
resizeContents( contentsWidth(), contentsHeight() - 24 );
}
updateContents();
updateScrollBars();
parent_widget -> update();
}
void KVocTrainTable::keyPressEvent(QKeyEvent * e)
{
delayTimer->stop();
switch(e->key())
{
case Key_Right: {
int topCell = rowAt(0);
int lastRowVisible = QMIN(numRows(), rowAt(contentsHeight()));
if (numCols() > 2)
for (int i = topCell; i <= lastRowVisible; i++)
updateCell(i, KV_COL_ORG);
} // fallthrough
case Key_Up:
case Key_Down:
case Key_Next:
case Key_Prior:
QTable::keyPressEvent(e);
break;
case Key_Left: {
QTable::keyPressEvent(e);
int topCell = rowAt(0);
int lastRowVisible = QMIN(numRows(), rowAt(contentsHeight()));
if (numCols() > 2)
for (int i = topCell; i <= lastRowVisible; i++)
updateCell(i, KV_COL_ORG);
}
break;
case Key_Shift:
case Key_Alt:
case Key_Control: // fallthrough
QTable::keyPressEvent(e);
emit forwardKeyPressEvent(e);
break;
case Key_Minus:
case Key_Plus:
case Key_Tab:
case Key_Backtab: // fallthrough
emit forwardKeyPressEvent(e);
break;
default:
QTable::keyPressEvent(e);
break;
}
}
void HistoryView::messageReceived(ICQMessage *msg)
{
if (msg->getUin() != m_nUin) return;
if (msg->Id >= MSG_PROCESS_ID) return;
int x = contentsX();
int y = contentsY();
bool bUnread = false;
ICQUser *u = pClient->getUser(m_nUin);
if (u){
for (list<unsigned long>::iterator it = u->unreadMsgs.begin(); it != u->unreadMsgs.end(); it++){
if ((*it) == msg->Id){
bUnread = true;
break;
}
}
}
if (bBack){
QString saveText = text();
setText("");
addMessage(msg, bUnread, false);
y += contentsHeight();
setText(text() + saveText);
}else{
addMessage(msg, bUnread, false);
}
setContentsPos(x, y);
}
void KexiSimplePrintPreviewScrollView::setFullWidth()
{
viewport()->setUpdatesEnabled(false);
double widthMM = KoPageFormat::width(
m_window->settings().pageLayout.format,
m_window->settings().pageLayout.orientation);
double heightMM = KoPageFormat::height(
m_window->settings().pageLayout.format, m_window->settings().pageLayout.orientation);
// int constantWidth = m_window->width()- KexiSimplePrintPreviewScrollView_MARGIN*6;
double constantWidth = width() - KexiSimplePrintPreviewScrollView_MARGIN * 6;
double heightForWidth = constantWidth * heightMM / widthMM;
// heightForWidth = qMin(kapp->desktop()->height()*4/5, heightForWidth);
kDebug() << "1: " << heightForWidth;
#if 0 //todo we can use this if we want to fix the height to width of the page
heightForWidth = qMin(height(), heightForWidth);
kDebug() << "2: " << heightForWidth;
#endif
constantWidth = heightForWidth * widthMM / heightMM;
widget->resize((int)constantWidth, (int)heightForWidth); //keep aspect
resizeContents(int(widget->width() + 2*KexiSimplePrintPreviewScrollView_MARGIN),
int(widget->height() + 2*KexiSimplePrintPreviewScrollView_MARGIN));
moveChild(widget, (contentsWidth() - widget->width()) / 2,
(contentsHeight() - widget->height()) / 2);
viewport()->setUpdatesEnabled(true);
resize(size() + QSize(1, 1)); //to update pos.
widget->enablePainting = true;
widget->repaint();
}
void DrawZone::setZoom(double z)
{
_zoom=z;
imageRect.setHeight(myround(image.height()*_zoom));
imageRect.setWidth(myround(image.width()*_zoom));
zoomedImage=QPixmap(imageRect.width(),imageRect.height());
QPainter p(&zoomedImage);
p.scale(z,z);
QPixmap pix;
pix.convertFromImage(image);
// if the picture has transparent areas,
// fill them with Gimp like background
if (pix.mask()) {
QPixmap backPix(32,32);
QPainter p2(&backPix);
p2.fillRect(0,0,32,32,QColor(156,149,156));
p2.fillRect(0,16,16,16,QColor(98,105,98));
p2.fillRect(16,0,16,16,QColor(98,105,98));
p2.flush();
p.setPen(QPen());
p.fillRect(imageRect.left(),imageRect.top(),imageRect.width(),imageRect.height(),QBrush(QColor("black"),backPix));
}
p.drawPixmap(imageRect.left(),imageRect.top(),pix);
p.flush();
resizeContents(visibleWidth()>imageRect.width() ? visibleWidth() : imageRect.width(),
visibleHeight()>imageRect.height() ? visibleHeight() : imageRect.height());
repaintContents(0,0,contentsWidth(),contentsHeight(),true);
}
// this is called from the clicked PatternWidget when in signal mode //
void
PolicyViewClass::endAddTransition(PatternWidgetClass* patternWidget)
{
// if addTransition mode is on, finish it and add the signal //
if (isAddTransitionMode()) {
viewport()->setMouseTracking(false);
addTransitionMode = false;
bool ok = false;
QString message = QInputDialog::getText(tr( "Add Transition" ),
tr( "Transition name:" ),
QLineEdit::Normal, QString::null, &ok, this );
if ( ok && !message.isEmpty() ) {
QString target = patternWidget->getPatternName();
if (document.addTransition(pickedPattern, message, target))
updateContents(contentsX(), contentsY(),
contentsWidth(), contentsHeight());
else
QMessageBox::warning(this,
"Add Transition",
"Transition " + message + " allready exists.\n" +
"No transition added.");
}
}
}
/******************************************************************************
* Sets the last column in the list view to extend at least to the right hand
* edge of the list view.
*/
void EventListViewBase::resizeLastColumn()
{
int lastColumnWidth = mLastColumnHeaderWidth;
for (EventListViewItemBase* item = firstChild(); item; item = item->nextSibling())
{
int mw = item->lastColumnWidth();
if (mw > lastColumnWidth)
lastColumnWidth = mw;
}
QHeader* head = header();
int x = head->sectionPos(mLastColumn);
int availableWidth = visibleWidth() - x;
int rightColWidth = 0;
int index = head->mapToIndex(mLastColumn);
if (index < mLastColumn)
{
// The last column has been dragged by the user to a different position.
// Ensure that the columns now to the right of it are still shown.
for (int i = index + 1; i <= mLastColumn; ++i)
rightColWidth += columnWidth(head->mapToSection(i));
availableWidth -= rightColWidth;
}
if (availableWidth < lastColumnWidth)
availableWidth = lastColumnWidth;
setColumnWidth(mLastColumn, availableWidth);
if (contentsWidth() > x + availableWidth + rightColWidth)
resizeContents(x + availableWidth + rightColWidth, contentsHeight());
}
void UIPageText::updateContents()
{
int ch = contentsHeight();
int vw = visibleWidth();
ensureVisible( 0, ch, 0, 0 );
repaintContents( 0, ch - 40, vw, 40, true );
}
int Q3ScrollView::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = Q3Frame::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
if (_id < 23)
qt_static_metacall(this, _c, _id, _a);
_id -= 23;
}
#ifndef QT_NO_PROPERTIES
else if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< ResizePolicy*>(_v) = resizePolicy(); break;
case 1: *reinterpret_cast< ScrollBarMode*>(_v) = vScrollBarMode(); break;
case 2: *reinterpret_cast< ScrollBarMode*>(_v) = hScrollBarMode(); break;
case 3: *reinterpret_cast< int*>(_v) = visibleWidth(); break;
case 4: *reinterpret_cast< int*>(_v) = visibleHeight(); break;
case 5: *reinterpret_cast< int*>(_v) = contentsWidth(); break;
case 6: *reinterpret_cast< int*>(_v) = contentsHeight(); break;
case 7: *reinterpret_cast< int*>(_v) = contentsX(); break;
case 8: *reinterpret_cast< int*>(_v) = contentsY(); break;
case 9: *reinterpret_cast< bool*>(_v) = dragAutoScroll(); break;
}
_id -= 10;
} else if (_c == QMetaObject::WriteProperty) {
void *_v = _a[0];
switch (_id) {
case 0: setResizePolicy(*reinterpret_cast< ResizePolicy*>(_v)); break;
case 1: setVScrollBarMode(*reinterpret_cast< ScrollBarMode*>(_v)); break;
case 2: setHScrollBarMode(*reinterpret_cast< ScrollBarMode*>(_v)); break;
case 9: setDragAutoScroll(*reinterpret_cast< bool*>(_v)); break;
}
_id -= 10;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 10;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 10;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 10;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 10;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 10;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 10;
}
#endif // QT_NO_PROPERTIES
return _id;
}
void RosegardenScrollView::updateScrollBars()
{
horizontalScrollBar()->setPageStep(visibleWidth());
// horizontalScrollBar()->setLineStep(visibleWidth() / 10);
horizontalScrollBar()->setMaximum(
std::max(contentsWidth()-visibleWidth(),0));
verticalScrollBar()->setPageStep(visibleHeight());
// verticalScrollBar()->setLineStep(visibleHeight() / 10);
verticalScrollBar()->setMaximum(
std::max(contentsHeight()-visibleHeight(),0));
// RG_DEBUG << "RosegardenScrollView::updateScrollBars :" <<
// " pagewidth - " << visibleWidth() <<
// " pageheight - " << visibleHeight();
}
void QGridView::paintEmptyArea( QPainter *p, int cx ,int cy, int cw, int ch)
{
if ( gridSize().width() >= contentsWidth() && gridSize().height() >= contentsHeight() )
return;
// Region of the rect we should draw
contentsToViewport( cx, cy, cx, cy );
QRegion reg( QRect( cx, cy, cw, ch ) );
// Subtract the table from it
reg = reg.subtract( QRect( contentsToViewport( QPoint( 0, 0 ) ), gridSize() ) );
// And draw the rectangles (transformed as needed)
QMemArray<QRect> r = reg.rects();
const QBrush &brush = backgroundBrush();
for ( int i = 0; i < (int)r.count(); ++i)
p->fillRect( r[ i ], brush );
}
bool ScrollView::platformHandleVerticalAdjustment(const IntSize& scroll)
{
if (m_verticalAdjustment) {
m_verticalAdjustment->page_size = visibleHeight();
m_verticalAdjustment->step_increment = visibleHeight() / 10.0;
m_verticalAdjustment->page_increment = visibleHeight() * 0.9;
m_verticalAdjustment->lower = 0;
m_verticalAdjustment->upper = contentsHeight();
gtk_adjustment_changed(m_verticalAdjustment);
if (m_scrollOffset.height() != scroll.height()) {
m_verticalAdjustment->value = scroll.height();
gtk_adjustment_value_changed(m_verticalAdjustment);
}
return true;
}
return false;
}
bool ScrollView::platformHandleVerticalAdjustment(const IntSize& scroll)
{
if (m_verticalAdjustment) {
m_verticalAdjustment->page_size = visibleHeight();
m_verticalAdjustment->step_increment = cScrollbarPixelsPerLineStep;
m_verticalAdjustment->page_increment = visibleHeight() - cAmountToKeepWhenPaging;
m_verticalAdjustment->lower = 0;
m_verticalAdjustment->upper = contentsHeight();
gtk_adjustment_changed(m_verticalAdjustment);
if (m_verticalAdjustment->value != scroll.height()) {
m_verticalAdjustment->value = scroll.height();
gtk_adjustment_value_changed(m_verticalAdjustment);
}
return true;
}
return false;
}
void QtFileIconView::newDirectory()
{
setAutoArrange( FALSE );
selectAll( FALSE );
if ( viewDir.mkdir( QString( "New Folder %1" ).arg( ++newFolderNum ) ) ) {
QFileInfo *fi = new QFileInfo( viewDir, QString( "New Folder %1" ).arg( newFolderNum ) );
QtFileIconViewItem *item = new QtFileIconViewItem( this, new QFileInfo( *fi ) );
item->setKey( QString( "000000%1" ).arg( fi->fileName() ) );
delete fi;
repaintContents( contentsX(), contentsY(), contentsWidth(), contentsHeight(), FALSE );
ensureItemVisible( item );
item->setSelected( TRUE, TRUE );
setCurrentItem( item );
repaintItem( item );
qApp->processEvents();
item->rename();
}
setAutoArrange( TRUE );
}
// Reimplemented
void QmvList::resizeEvent( QResizeEvent *e )
{
QListView::resizeEvent( e );
QSize vs = viewportSize( 0, contentsHeight() );
int os = header()->sectionSize( 1 );
int ns = vs.width() - header()->sectionSize( 0 );
if ( ns < 16 )
ns = 16;
header()->resizeSection( 1, ns );
header()->repaint( header()->width() - header()->sectionSize( 1 ),
0, header()->sectionSize( 1 ), header()->height() );
int elipsis = fontMetrics().width("...") + 10;
viewport()->repaint( header()->sectionPos(1) + os - elipsis, 0, elipsis, viewport()->height(), FALSE );
if ( currentItem() )
( ( QmvItem* )currentItem() )->showEditor();
}
void KImportIconView::drawContents ( QPainter *p, int cx, int cy, int cw, int ch )
{
if ( !m_bDropped)
{
QIconView::drawContents ( p, cx, cy, cw, ch );
p->save();
QFont font ( p->font() );
font.setBold ( true );
font.setFamily ( "Helvetica [Adobe]" );
font.setPointSize ( 10 );
p->setFont ( font );
p->setPen ( QPen ( KGlobalSettings::highlightColor() ) );
QRect rect = frameRect();
QFontMetrics fm ( p->font() );
rect.setLeft ( rect.left() + 30 );
rect.setRight ( rect.right() - 30 );
resizeContents ( contentsWidth(), contentsHeight() );
// word-wrap the string
KWordWrap* wordWrap1 = KWordWrap::formatText( fm, rect, AlignHCenter | WordBreak, m_strIntro );
KWordWrap* wordWrap2 = KWordWrap::formatText( fm, rect, AlignHCenter | WordBreak, i18n("Or just use the buttons.") );
QRect introRect1 = wordWrap1->boundingRect();
QRect introRect2 = wordWrap2->boundingRect();
wordWrap1->drawText ( p, ( ( frameRect().right() - introRect1.right() ) / 2 ), ( ( frameRect().bottom() - introRect1.bottom() ) / 2 ) - 20, AlignHCenter | AlignVCenter );
wordWrap2->drawText ( p, ( ( frameRect().right() - introRect2.right() ) / 2 ), ( ( frameRect().bottom() - introRect2.bottom() ) / 2 ) + introRect1.bottom(), AlignHCenter | AlignVCenter );
p->restore();
}
else
{
QIconView::drawContents ( p, cx, cy, cw, ch );
}
}
void KVocTrainTable::contentsMousePressEvent(QMouseEvent * e)
{
delayTimer->stop();
int cc = columnAt(e->x());
int cr = rowAt(e->y());
int co = currentColumn();
QTable::contentsMousePressEvent(e);
if(cc >= KV_EXTRA_COLS) {
// update color of original when column changes and more than 1 translation
bool update_org = false;
if (cc != co && numCols() > 2)
update_org = true;
int topCell = rowAt(0);
int lastRowVisible = QMIN(numRows(), rowAt(contentsHeight()));
if (update_org)
for (int i = topCell; i <= lastRowVisible; i++)
updateCell(i, KV_COL_ORG);
}
if(e->button() == LeftButton)
setCurrentCell(cr, cc);
}
QSize QVFbView::sizeHint() const
{
int f = 2 * frameWidth();
return QSize( contentsWidth() + f, contentsHeight() + f );
}
void PageView::layoutPages(bool zoomChanged)
{
// Paranoid safety check
if (widgetList == 0)
return;
// If there are no widgets, e.g. because the last widget has been
// removed, the matter is easy: set the contents size to 0. If there
// are no widgets because previously existing widgets were removed
// (we detect that by looking at the contentsWidth and -Height).
if (widgetList->isEmpty()) {
if ((contentsWidth() != 0) || (contentsHeight() != 0)) {
QScrollView::resizeContents(0,0);
}
return;
}
// Ok, now we are in a situation where we do have some widgets that
// shall be centered.
int distance = distanceBetweenWidgets;
if (singlePageFullScreenMode())
{
// In single page fullscreen mode we don't want a margin around the pages
distance = 0;
}
QMemArray<Q_UINT32> colWidth(nrCols);
for(Q_UINT8 i=0; i<colWidth.size(); i++)
colWidth[i] = 0;
Q_UINT16 numRows;
if(nrCols <= 2)
{
numRows = (widgetList->size()+2*nrCols-2) / nrCols;
}
else
{
numRows = (Q_INT16)ceil(((double)widgetList->size()) / nrCols);
}
QMemArray<Q_UINT32> rowHeight(numRows);
for(Q_UINT16 i=0; i<rowHeight.size(); i++)
rowHeight[i] = 0;
// Now find the widths and heights of the columns
for(Q_UINT16 i=0; i<widgetList->size(); i++)
{
Q_UINT8 col;
Q_UINT16 row;
if (nrCols == 2) {
// In two-column display, start with the right column
col = (i+1+nrCols) % nrCols;
row = (i+1+nrCols) / nrCols - 1;
} else {
col = (i+nrCols) % nrCols;
row = (i+nrCols) / nrCols - 1;
}
colWidth[col] = QMAX(colWidth[col], (Q_UINT32)widgetList->at(i)->pageSize().width());
rowHeight[row] = QMAX(rowHeight[row], (Q_UINT32)widgetList->at(i)->pageSize().height());
}
// Calculate the total width and height of the display
Q_UINT32 totalHeight = 0;
for(Q_UINT16 i=0; i<rowHeight.size(); i++)
totalHeight += rowHeight[i];
totalHeight += (numRows+1)*distance;
Q_UINT32 totalWidth = 0;
for(Q_UINT8 i=0; i<colWidth.size(); i++)
totalWidth += colWidth[i];
totalWidth += (nrCols+1)*distance;
QSize newViewportSize = viewportSize( totalWidth, totalHeight );
Q_UINT32 centeringLeft = 0;
if( (Q_UINT32)newViewportSize.width() > totalWidth )
centeringLeft = ( newViewportSize.width() - totalWidth )/2;
Q_UINT32 centeringTop = 0;
if( (Q_UINT32)newViewportSize.height() > totalHeight )
centeringTop = ( newViewportSize.height() - totalHeight)/2;
// Resize the viewport
if (((Q_UINT32)contentsWidth() != totalWidth) || ((Q_UINT32)contentsHeight() != totalHeight))
{
// Calculate the point in the coordinates of the contents which is currently at the center of the viewport.
QPoint midPoint = QPoint(visibleWidth() / 2 + contentsX(), visibleHeight() / 2 + contentsY());
double midPointRatioX = (double)(midPoint.x()) / contentsWidth();
double midPointRatioY = (double)(midPoint.y()) / contentsHeight();
resizeContents(totalWidth,totalHeight);
// If the zoom changed recenter the former midPoint
if (zoomChanged)
center((int)(contentsWidth() * midPointRatioX), (int)(contentsHeight() * midPointRatioY));
}
// Finally, calculate the left and top coordinates of each row and
// column, respectively
QMemArray<Q_UINT32> colLeft(nrCols);
colLeft[0] = distance;
for(Q_UINT8 i=1; i<colLeft.size(); i++)
colLeft[i] = colLeft[i-1]+colWidth[i-1]+distance;
QMemArray<Q_UINT32> rowTop(numRows);
rowTop[0] = distance;
for(Q_UINT16 i=1; i<rowTop.size(); i++)
rowTop[i] = rowTop[i-1]+rowHeight[i-1]+distance;
for(Q_UINT16 i=0; i<widgetList->size(); i++)
{
Q_UINT8 col;
Q_UINT16 row;
if (nrCols == 2)
{
// In two column-mode start with the right column.
col = (i+nrCols-1) % nrCols;
row = (i+nrCols-1) / nrCols;
}
else
{
col = (i+nrCols) % nrCols;
row = i / nrCols;
}
if (nrCols == 2)
{
// in 2-column mode right justify the first column, and leftjustify the second column
int width = widgetList->at(i)->width();
int left;
if (col == 0)
left = centeringLeft + colLeft[col] + colWidth[col]-width + distance/2;
else
left = centeringLeft + colLeft[col];
moveChild( widgetList->at(i), left, centeringTop+rowTop[row]);
}
else
{
// in single column and overview mode center the widgets
int widgetWidth = widgetList->at(i)->width();
int left = centeringLeft + colLeft[col] + ((int)colWidth[col]-widgetWidth)/2;
moveChild(widgetList->at(i), left, centeringTop+rowTop[row]);
}
}
calculateCurrentPageNumber();
}
void ScrollView::updateScrollbars(const IntSize& desiredOffset)
{
// Don't allow re-entrancy into this function.
if (m_data->m_inUpdateScrollbars)
return;
// FIXME: This code is here so we don't have to fork FrameView.h/.cpp.
// In the end, FrameView should just merge with ScrollView.
if (static_cast<const FrameView*>(this)->frame()->prohibitsScrolling())
return;
m_data->m_inUpdateScrollbars = true;
bool hasVerticalScrollbar = m_data->m_vBar;
bool hasHorizontalScrollbar = m_data->m_hBar;
bool oldHasVertical = hasVerticalScrollbar;
bool oldHasHorizontal = hasHorizontalScrollbar;
ScrollbarMode hScroll = m_data->m_hScrollbarMode;
ScrollbarMode vScroll = m_data->m_vScrollbarMode;
const int cVerticalWidth = PlatformScrollbar::verticalScrollbarWidth();
const int cHorizontalHeight = PlatformScrollbar::horizontalScrollbarHeight();
for (int pass = 0; pass < 2; pass++) {
bool scrollsVertically;
bool scrollsHorizontally;
if (!m_data->m_scrollbarsSuppressed && (hScroll == ScrollbarAuto || vScroll == ScrollbarAuto)) {
// Do a layout if pending before checking if scrollbars are needed.
if (hasVerticalScrollbar != oldHasVertical || hasHorizontalScrollbar != oldHasHorizontal)
static_cast<FrameView*>(this)->layout();
scrollsVertically = (vScroll == ScrollbarAlwaysOn) || (vScroll == ScrollbarAuto && contentsHeight() > height());
if (scrollsVertically)
scrollsHorizontally = (hScroll == ScrollbarAlwaysOn) || (hScroll == ScrollbarAuto && contentsWidth() + cVerticalWidth > width());
else {
scrollsHorizontally = (hScroll == ScrollbarAlwaysOn) || (hScroll == ScrollbarAuto && contentsWidth() > width());
if (scrollsHorizontally)
scrollsVertically = (vScroll == ScrollbarAlwaysOn) || (vScroll == ScrollbarAuto && contentsHeight() + cHorizontalHeight > height());
}
}
else {
scrollsHorizontally = (hScroll == ScrollbarAuto) ? hasHorizontalScrollbar : (hScroll == ScrollbarAlwaysOn);
scrollsVertically = (vScroll == ScrollbarAuto) ? hasVerticalScrollbar : (vScroll == ScrollbarAlwaysOn);
}
if (hasVerticalScrollbar != scrollsVertically) {
m_data->setHasVerticalScrollbar(scrollsVertically);
hasVerticalScrollbar = scrollsVertically;
}
if (hasHorizontalScrollbar != scrollsHorizontally) {
m_data->setHasHorizontalScrollbar(scrollsHorizontally);
hasHorizontalScrollbar = scrollsHorizontally;
}
}
// Set up the range (and page step/line step).
IntSize maxScrollPosition(contentsWidth() - visibleWidth(), contentsHeight() - visibleHeight());
IntSize scroll = desiredOffset.shrunkTo(maxScrollPosition);
scroll.clampNegativeToZero();
if (m_data->m_hBar) {
int clientWidth = visibleWidth();
m_data->m_hBar->setEnabled(contentsWidth() > clientWidth);
int pageStep = (clientWidth - PAGE_KEEP);
if (pageStep < 0) pageStep = clientWidth;
IntRect oldRect(m_data->m_hBar->frameGeometry());
IntRect hBarRect = IntRect(0,
height() - m_data->m_hBar->height(),
width() - (m_data->m_vBar ? m_data->m_vBar->width() : 0),
m_data->m_hBar->height());
m_data->m_hBar->setRect(hBarRect);
if (!m_data->m_scrollbarsSuppressed && oldRect != m_data->m_hBar->frameGeometry())
m_data->m_hBar->invalidate();
if (m_data->m_scrollbarsSuppressed)
m_data->m_hBar->setSuppressInvalidation(true);
m_data->m_hBar->setSteps(LINE_STEP, pageStep);
m_data->m_hBar->setProportion(clientWidth, contentsWidth());
m_data->m_hBar->setValue(scroll.width());
if (m_data->m_scrollbarsSuppressed)
m_data->m_hBar->setSuppressInvalidation(false);
}
if (m_data->m_vBar) {
int clientHeight = visibleHeight();
m_data->m_vBar->setEnabled(contentsHeight() > clientHeight);
int pageStep = (clientHeight - PAGE_KEEP);
if (pageStep < 0) pageStep = clientHeight;
IntRect oldRect(m_data->m_vBar->frameGeometry());
IntRect vBarRect = IntRect(width() - m_data->m_vBar->width(),
0,
m_data->m_vBar->width(),
height() - (m_data->m_hBar ? m_data->m_hBar->height() : 0));
m_data->m_vBar->setRect(vBarRect);
if (!m_data->m_scrollbarsSuppressed && oldRect != m_data->m_vBar->frameGeometry())
m_data->m_vBar->invalidate();
if (m_data->m_scrollbarsSuppressed)
m_data->m_vBar->setSuppressInvalidation(true);
m_data->m_vBar->setSteps(LINE_STEP, pageStep);
m_data->m_vBar->setProportion(clientHeight, contentsHeight());
m_data->m_vBar->setValue(scroll.height());
if (m_data->m_scrollbarsSuppressed)
m_data->m_vBar->setSuppressInvalidation(false);
}
if (oldHasVertical != (m_data->m_vBar != 0) || oldHasHorizontal != (m_data->m_hBar != 0))
geometryChanged();
// See if our offset has changed in a situation where we might not have scrollbars.
// This can happen when editing a body with overflow:hidden and scrolling to reveal selection.
// It can also happen when maximizing a window that has scrollbars (but the new maximized result
// does not).
IntSize scrollDelta = scroll - m_data->m_scrollOffset;
if (scrollDelta != IntSize()) {
m_data->m_scrollOffset = scroll;
m_data->scrollBackingStore(scrollDelta);
}
m_data->m_inUpdateScrollbars = false;
}
IntSize ScrollView::maximumScroll() const
{
IntSize delta = (IntSize(contentsWidth(), contentsHeight()) - IntSize(visibleWidth(), visibleHeight())) - scrollOffset();
delta.clampNegativeToZero();
return delta;
}