bool VMdEditor::isBlockVisible(const QTextBlock &p_block)
{
if (!p_block.isValid() || !p_block.isVisible()) {
return false;
}
QScrollBar *vbar = verticalScrollBar();
if (!vbar || !vbar->isVisible()) {
// No vertical scrollbar.
return true;
}
int height = rect().height();
QScrollBar *hbar = horizontalScrollBar();
if (hbar && hbar->isVisible()) {
height -= hbar->height();
}
QAbstractTextDocumentLayout *layout = document()->documentLayout();
QRectF rect = layout->blockBoundingRect(p_block);
int y = GETVISUALOFFSETY;
int rectHeight = (int)rect.height();
return (y >= 0 && y < height) || (y < 0 && y + rectHeight > 0);
}
void pTreeComboBox::calculPopupGeometry()
{
if ( !mView ) {
return;
}
QStyle * const style = this->style();
// set current item and select it
view()->selectionModel()->setCurrentIndex( mCurrentIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows );
QFrame* container = mFrame;
QStyleOptionComboBox opt;
initStyleOption( &opt );
QRect listRect( style->subControlRect( QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxListBoxPopup, this ) );
QRect screen = popupGeometry( QApplication::desktop()->screenNumber( this ) );
QPoint below = mapToGlobal( listRect.bottomLeft() );
int belowHeight = screen.bottom() -below.y();
QPoint above = mapToGlobal( listRect.topLeft() );
int aboveHeight = above.y() -screen.y();
bool boundToScreen = !window()->testAttribute( Qt::WA_DontShowOnScreen );
listRect.moveTopLeft( mapToGlobal( rect().bottomLeft() ) );
listRect.setSize( QSize(
qMax( qMax( view()->viewport()->width(), mFrame->width() ), width() )
,
qMax( view()->viewport()->height(), mFrame->height() )
) );
const bool usePopup = style->styleHint( QStyle::SH_ComboBox_Popup, &opt, this );
{
int listHeight = 0;
int count = 0;
QStack<QModelIndex> toCheck;
toCheck.push( view()->rootIndex() );
#ifndef QT_NO_TREEVIEW
QTreeView* treeView = qobject_cast<QTreeView*>( view() );
if ( treeView && treeView->header() && !treeView->header()->isHidden() )
listHeight += treeView->header()->height();
#endif
while ( !toCheck.isEmpty() ) {
QModelIndex parent = toCheck.pop();
for ( int i = 0; i < model()->rowCount( parent ); ++i ) {
QModelIndex idx = model()->index( i, mModelColumn, parent );
if ( !idx.isValid() )
continue;
listHeight += view()->visualRect( idx ).height();
#ifndef QT_NO_TREEVIEW
if ( model()->hasChildren( idx ) && treeView && treeView->isExpanded( idx ) )
toCheck.push( idx );
#endif
++count;
if ( !usePopup && count > mMaxVisibleItems ) {
toCheck.clear();
break;
}
}
}
listRect.setHeight( listHeight );
}
{
// add the spacing for the grid on the top and the bottom;
int heightMargin = 0;
// add the frame of the container
int marginTop, marginBottom;
container->getContentsMargins( 0, &marginTop, 0, &marginBottom );
heightMargin += marginTop +marginBottom;
//add the frame of the view
view()->getContentsMargins( 0, &marginTop, 0, &marginBottom );
marginTop += 0/*static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->top*/;
marginBottom += 0/*static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(view()))->bottom*/;
heightMargin += marginTop +marginBottom;
listRect.setHeight( listRect.height() +heightMargin );
}
// Add space for margin at top and bottom if the style wants it.
if ( usePopup )
listRect.setHeight( listRect.height() +style->pixelMetric( QStyle::PM_MenuVMargin, &opt, this ) *2 );
// Make sure the popup is wide enough to display its contents.
if ( usePopup ) {
const int diff = sizeHint().width() /*d->computeWidthHint()*/ -width();
if ( diff > 0 )
listRect.setWidth( listRect.width() +diff );
}
//we need to activate the layout to make sure the min/maximum size are set when the widget was not yet show
container->layout()->activate();
//takes account of the minimum/maximum size of the container
listRect.setSize( listRect.size().expandedTo(container->minimumSize())
.boundedTo(container->maximumSize()));
// make sure the widget fits on screen
if (boundToScreen) {
if (listRect.width() > screen.width() )
listRect.setWidth(screen.width());
if (/*mapToGlobal(*/listRect/*.bottomRight())*/.x() > screen.right()) {
below.setX(screen.x() + screen.width() - listRect.width());
above.setX(screen.x() + screen.width() - listRect.width());
}
if (/*mapToGlobal(*/listRect/*.topLeft())*/.x() < screen.x() ) {
below.setX(screen.x());
above.setX(screen.x());
}
}
if ( usePopup ) {
// Position horizontally.
listRect.moveLeft( above.x() );
// Position vertically so the curently selected item lines up
// with the combo box.
/*const QRect currentItemRect = view()->visualRect( view()->currentIndex() );
const int offset = listRect.top() -currentItemRect.top();
listRect.moveTop( above.y() +offset -listRect.top() );*/
// Clamp the listRect height and vertical position so we don't expand outside the
// available screen geometry.This may override the vertical position, but it is more
// important to show as much as possible of the popup.
const int height = !boundToScreen ? listRect.height() : qMin(listRect.height(), screen.height());
listRect.setHeight(height);
if (boundToScreen) {
if (listRect.top() < screen.top())
listRect.moveTop(screen.top());
if (listRect.bottom() > screen.bottom())
listRect.moveBottom(screen.bottom());
}
} else if (!boundToScreen || listRect.height() <= belowHeight) {
listRect.moveTopLeft(below);
} else if (listRect.height() <= aboveHeight) {
listRect.moveBottomLeft(above);
} else if (belowHeight >= aboveHeight) {
listRect.setHeight(belowHeight);
listRect.moveTopLeft(below);
} else {
listRect.setHeight(aboveHeight);
listRect.moveBottomLeft(above);
}
#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
#ifndef QT_NO_IM
if ( QInputContext *qic = inputContext() )
qic->reset();
#endif
#endif
QScrollBar* sb = view()->horizontalScrollBar();
Qt::ScrollBarPolicy policy = view()->horizontalScrollBarPolicy();
bool needHorizontalScrollBar = ( policy == Qt::ScrollBarAsNeeded || policy == Qt::ScrollBarAlwaysOn ) && sb->minimum() < sb->maximum();
if ( needHorizontalScrollBar ) {
listRect.adjust( 0, 0, 0, sb->height() );
}
container->setGeometry( listRect );
#ifndef Q_WS_MAC
const bool updatesEnabled = container->updatesEnabled();
#endif
#if defined( Q_WS_WIN ) && !defined( QT_NO_EFFECTS )
// FIXME Fix me ASAP
/*bool scrollDown = ( listRect.topLeft() == below );
if ( QApplication::isEffectEnabled( Qt::UI_AnimateCombo )
&& !style->styleHint( QStyle::SH_ComboBox_Popup, &opt, this ) && !window()->testAttribute( Qt::WA_DontShowOnScreen ) )
qScrollEffect( container, scrollDown ? QEffects::DownScroll : QEffects::UpScroll, 150 );*/
#endif
// Don't disable updates on Mac OS X. Windows are displayed immediately on this platform,
// which means that the window will be visible before the call to container->show() returns.
// If updates are disabled at this point we'll miss our chance at painting the popup
// menu before it's shown, causing flicker since the window then displays the standard gray
// background.
#ifndef Q_WS_MAC
container->setUpdatesEnabled( false );
#endif
container->raise();
container->show();
//container->updateScrollers();
view()->setFocus();
view()->scrollTo( view()->currentIndex(), style->styleHint( QStyle::SH_ComboBox_Popup, &opt, this ) ? QAbstractItemView::PositionAtCenter : QAbstractItemView::EnsureVisible );
#ifndef Q_WS_MAC
container->setUpdatesEnabled( updatesEnabled );
#endif
container->update();
#ifdef QT_KEYPAD_NAVIGATION
if ( QApplication::keypadNavigationEnabled() )
view()->setEditFocus( true );
#endif
}
// -------------------------------------------------------------------------
void ctkTreeComboBox::resizePopup()
{
// copied from QComboBox.cpp
Q_D(ctkTreeComboBox);
QStyle * const style = this->style();
QWidget* container = qobject_cast<QWidget*>(this->view()->parent());
QStyleOptionComboBox opt;
this->initStyleOption(&opt);
QRect listRect(style->subControlRect(QStyle::CC_ComboBox, &opt,
QStyle::SC_ComboBoxListBoxPopup, this));
QRect screen = QApplication::desktop()->availableGeometry(
QApplication::desktop()->screenNumber(this));
QPoint below = this->mapToGlobal(listRect.bottomLeft());
int belowHeight = screen.bottom() - below.y();
QPoint above = this->mapToGlobal(listRect.topLeft());
int aboveHeight = above.y() - screen.y();
bool boundToScreen = !this->window()->testAttribute(Qt::WA_DontShowOnScreen);
const bool usePopup = style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this);
{
int listHeight = 0;
int count = 0;
QStack<QModelIndex> toCheck;
toCheck.push(this->view()->rootIndex());
#ifndef QT_NO_TREEVIEW
QTreeView *treeView = qobject_cast<QTreeView*>(this->view());
if (treeView && treeView->header() && !treeView->header()->isHidden())
listHeight += treeView->header()->height();
#endif
while (!toCheck.isEmpty())
{
QModelIndex parent = toCheck.pop();
for (int i = 0; i < this->model()->rowCount(parent); ++i)
{
QModelIndex idx = this->model()->index(i, this->modelColumn(), parent);
if (!idx.isValid())
{
continue;
}
listHeight += this->view()->visualRect(idx).height(); /* + container->spacing() */;
#ifndef QT_NO_TREEVIEW
if (this->model()->hasChildren(idx) && treeView && treeView->isExpanded(idx))
{
toCheck.push(idx);
}
#endif
++count;
if (!usePopup && count > this->maxVisibleItems())
{
toCheck.clear();
break;
}
}
}
listRect.setHeight(listHeight);
}
{
// add the spacing for the grid on the top and the bottom;
int heightMargin = 0;//2*container->spacing();
// add the frame of the container
int marginTop, marginBottom;
container->getContentsMargins(0, &marginTop, 0, &marginBottom);
heightMargin += marginTop + marginBottom;
//add the frame of the view
this->view()->getContentsMargins(0, &marginTop, 0, &marginBottom);
//marginTop += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(this->view()))->top;
//marginBottom += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(this->view()))->bottom;
heightMargin += marginTop + marginBottom;
listRect.setHeight(listRect.height() + heightMargin);
}
// Add space for margin at top and bottom if the style wants it.
if (usePopup)
{
listRect.setHeight(listRect.height() + style->pixelMetric(QStyle::PM_MenuVMargin, &opt, this) * 2);
}
// Make sure the popup is wide enough to display its contents.
if (usePopup)
{
const int diff = d->computeWidthHint() - this->width();
if (diff > 0)
{
listRect.setWidth(listRect.width() + diff);
}
}
//we need to activate the layout to make sure the min/maximum size are set when the widget was not yet show
container->layout()->activate();
//takes account of the minimum/maximum size of the container
listRect.setSize( listRect.size().expandedTo(container->minimumSize())
.boundedTo(container->maximumSize()));
// make sure the widget fits on screen
if (boundToScreen)
{
if (listRect.width() > screen.width() )
{
listRect.setWidth(screen.width());
}
if (this->mapToGlobal(listRect.bottomRight()).x() > screen.right())
{
below.setX(screen.x() + screen.width() - listRect.width());
above.setX(screen.x() + screen.width() - listRect.width());
}
if (this->mapToGlobal(listRect.topLeft()).x() < screen.x() )
{
below.setX(screen.x());
above.setX(screen.x());
}
}
if (usePopup)
{
// Position horizontally.
listRect.moveLeft(above.x());
#ifndef Q_WS_S60
// Position vertically so the curently selected item lines up
// with the combo box.
const QRect currentItemRect = this->view()->visualRect(this->view()->currentIndex());
const int offset = listRect.top() - currentItemRect.top();
listRect.moveTop(above.y() + offset - listRect.top());
#endif
// Clamp the listRect height and vertical position so we don't expand outside the
// available screen geometry.This may override the vertical position, but it is more
// important to show as much as possible of the popup.
const int height = !boundToScreen ? listRect.height() : qMin(listRect.height(), screen.height());
#ifdef Q_WS_S60
//popup needs to be stretched with screen minimum dimension
listRect.setHeight(qMin(screen.height(), screen.width()));
#else
listRect.setHeight(height);
#endif
if (boundToScreen)
{
if (listRect.top() < screen.top())
{
listRect.moveTop(screen.top());
}
if (listRect.bottom() > screen.bottom())
{
listRect.moveBottom(screen.bottom());
}
}
#ifdef Q_WS_S60
if (screen.width() < screen.height())
{
// in portait, menu should be positioned above softkeys
listRect.moveBottom(screen.bottom());
}
else
{
TRect staConTopRect = TRect();
AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EStaconTop, staConTopRect);
listRect.setWidth(listRect.height());
//by default popup is centered on screen in landscape
listRect.moveCenter(screen.center());
if (staConTopRect.IsEmpty())
{
// landscape without stacon, menu should be at the right
(opt.direction == Qt::LeftToRight) ? listRect.setRight(screen.right()) :
listRect.setLeft(screen.left());
}
}
#endif
}
else if (!boundToScreen || listRect.height() <= belowHeight)
{
listRect.moveTopLeft(below);
}
else if (listRect.height() <= aboveHeight)
{
listRect.moveBottomLeft(above);
}
else if (belowHeight >= aboveHeight)
{
listRect.setHeight(belowHeight);
listRect.moveTopLeft(below);
}
else
{
listRect.setHeight(aboveHeight);
listRect.moveBottomLeft(above);
}
#if QT_VERSION < QT_VERSION_CHECK(5,0,0) && !defined QT_NO_IM
if (QInputContext *qic = this->inputContext())
{
qic->reset();
}
#endif
QScrollBar *sb = this->view()->horizontalScrollBar();
Qt::ScrollBarPolicy policy = this->view()->horizontalScrollBarPolicy();
bool needHorizontalScrollBar =
(policy == Qt::ScrollBarAsNeeded || policy == Qt::ScrollBarAlwaysOn)
&& sb->minimum() < sb->maximum();
if (needHorizontalScrollBar)
{
listRect.adjust(0, 0, 0, sb->height());
}
container->setGeometry(listRect);
}
void VMdEditor::makeBlockVisible(const QTextBlock &p_block)
{
if (!p_block.isValid() || !p_block.isVisible()) {
return;
}
QScrollBar *vbar = verticalScrollBar();
if (!vbar || (vbar->minimum() == vbar->maximum())) {
// No vertical scrollbar. No need to scroll.
return;
}
int height = rect().height();
QScrollBar *hbar = horizontalScrollBar();
if (hbar && (hbar->minimum() != hbar->maximum())) {
height -= hbar->height();
}
bool moved = false;
QAbstractTextDocumentLayout *layout = document()->documentLayout();
QRectF rect = layout->blockBoundingRect(p_block);
int y = GETVISUALOFFSETY;
int rectHeight = (int)rect.height();
// Handle the case rectHeight >= height.
if (rectHeight >= height) {
if (y < 0) {
// Need to scroll up.
while (y + rectHeight < height && vbar->value() > vbar->minimum()) {
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
rect = layout->blockBoundingRect(p_block);
rectHeight = (int)rect.height();
y = GETVISUALOFFSETY;
}
} else if (y > 0) {
// Need to scroll down.
while (y > 0 && vbar->value() < vbar->maximum()) {
moved = true;
vbar->setValue(vbar->value() + vbar->singleStep());
rect = layout->blockBoundingRect(p_block);
rectHeight = (int)rect.height();
y = GETVISUALOFFSETY;
}
if (y < 0) {
// One step back.
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
}
}
if (moved) {
qDebug() << "scroll to make huge block visible";
}
return;
}
while (y < 0 && vbar->value() > vbar->minimum()) {
moved = true;
vbar->setValue(vbar->value() - vbar->singleStep());
rect = layout->blockBoundingRect(p_block);
rectHeight = (int)rect.height();
y = GETVISUALOFFSETY;
}
if (moved) {
qDebug() << "scroll page down to make block visible";
return;
}
while (y + rectHeight > height && vbar->value() < vbar->maximum()) {
moved = true;
vbar->setValue(vbar->value() + vbar->singleStep());
rect = layout->blockBoundingRect(p_block);
rectHeight = (int)rect.height();
y = GETVISUALOFFSETY;
}
if (moved) {
qDebug() << "scroll page up to make block visible";
}
}
