int Q3DockArea::maxSpace(int hint, Q3DockWindow *dw)
{
int index = findDockWindow(dw);
if (index == -1 || index + 1 >= (int)dockWindows.count()) {
if (orientation() == Qt::Horizontal)
return dw->width();
return dw->height();
}
Q3DockWindow *w = 0;
int i = 0;
do {
w = dockWindows.at(index + (++i));
} while (i + 1 < (int)dockWindows.count() && (!w || w->isHidden()));
if (!w || !w->isResizeEnabled() || i >= (int)dockWindows.count()) {
if (orientation() == Qt::Horizontal)
return dw->width();
return dw->height();
}
int min = 0;
Q3ToolBar *tb = qobject_cast<Q3ToolBar*>(w);
if (orientation() == Qt::Horizontal) {
w->setFixedExtentWidth(-1);
if (!tb)
min = qMax(w->minimumSize().width(), w->minimumSizeHint().width());
else
min = w->sizeHint().width();
} else {
w->setFixedExtentHeight(-1);
if (!tb)
min = qMax(w->minimumSize().height(), w->minimumSizeHint().height());
else
min = w->sizeHint().height();
}
int diff = hint - (orientation() == Qt::Horizontal ? dw->width() : dw->height());
if ((orientation() == Qt::Horizontal ? w->width() : w->height()) - diff < min)
hint = (orientation() == Qt::Horizontal ? dw->width() : dw->height()) + (orientation() == Qt::Horizontal ? w->width() : w->height()) - min;
diff = hint - (orientation() == Qt::Horizontal ? dw->width() : dw->height());
if (orientation() == Qt::Horizontal)
w->setFixedExtentWidth(w->width() - diff);
else
w->setFixedExtentHeight(w->height() - diff);
return hint;
}
QSize Q3DockAreaLayout::sizeHint() const
{
if (dockWindows->isEmpty())
return QSize(0, 0);
if (dirty) {
Q3DockAreaLayout *that = (Q3DockAreaLayout *) this;
that->layoutItems(geometry());
}
int w = 0;
int h = 0;
int y = -1;
int x = -1;
int ph = 0;
int pw = 0;
for (int i = 0; i < dockWindows->size(); ++i) {
Q3DockWindow *dw = dockWindows->at(i);
int plush = 0, plusw = 0;
if (dw->isHidden())
continue;
if (hasHeightForWidth()) {
if (y != dw->y())
plush = ph;
y = dw->y();
ph = dw->height();
} else {
if (x != dw->x())
plusw = pw;
x = dw->x();
pw = dw->width();
}
h = qMax(h, dw->height() + plush);
w = qMax(w, dw->width() + plusw);
}
if (hasHeightForWidth())
return QSize(0, h);
return QSize(w, 0);
}
void Q3DockArea::removeDockWindow(Q3DockWindow *w, bool makeFloating, bool swap, bool fixNewLines)
{
w->removeEventFilter(this);
Q3DockWindow *dockWindow = 0;
int i = findDockWindow(w);
if (i == -1)
return;
dockWindow = dockWindows.at(i);
dockWindows.removeAt(i);
QList<Q3DockWindow *> lineStarts = layout->lineStarts();
if (fixNewLines && lineStarts.contains(dockWindow) && i < dockWindows.count())
dockWindows.at(i)->setNewLine(true);
if (makeFloating) {
QWidget *p = parentWidget() ? parentWidget() : window();
dockWindow->setParent(p, Qt::WType_Dialog | Qt::WStyle_Customize | Qt::WStyle_NoBorder | Qt::WStyle_Tool);
dockWindow->move(0, 0);
}
if (swap)
dockWindow->resize(dockWindow->height(), dockWindow->width());
updateLayout();
if (dockWindows.isEmpty())
setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred));
}
void Q3DockArea::moveDockWindow(Q3DockWindow *w, const QPoint &p, const QRect &r, bool swap)
{
invalidateFixedSizes();
int mse = -10;
bool hasResizable = false;
for (int i = 0; i < dockWindows.size(); ++i) {
Q3DockWindow *dw = dockWindows.at(i);
if (dw->isHidden())
continue;
if (dw->isResizeEnabled())
hasResizable = true;
if (orientation() != Qt::Horizontal)
mse = qMax(qMax(dw->fixedExtent().width(), dw->width()), mse);
else
mse = qMax(qMax(dw->fixedExtent().height(), dw->height()), mse);
}
if (!hasResizable && w->isResizeEnabled()) {
if (orientation() != Qt::Horizontal)
mse = qMax(w->fixedExtent().width(), mse);
else
mse = qMax(w->fixedExtent().height(), mse);
}
Q3DockWindow *dockWindow = 0;
int dockWindowIndex = findDockWindow(w);
QList<Q3DockWindow *> lineStarts = layout->lineStarts();
QList<QRect> lines = layout->lineList();
bool wasAloneInLine = false;
QPoint pos = mapFromGlobal(p);
int line = lineOf(dockWindowIndex);
QRect lr;
if (line < lines.size())
lr = lines.at(line);
if (dockWindowIndex != -1) {
if (lineStarts.contains(w)
&& ((dockWindowIndex < dockWindows.count() - 1
&& lineStarts.contains(dockWindows.at(dockWindowIndex + 1)))
|| dockWindowIndex == dockWindows.count() - 1))
wasAloneInLine = true;
dockWindow = dockWindows.takeAt(dockWindowIndex);
if (!wasAloneInLine) { // only do the pre-layout if the widget isn't the only one in its line
if (lineStarts.contains(dockWindow) && dockWindowIndex < dockWindows.count())
dockWindows.at(dockWindowIndex)->setNewLine(true);
layout->layoutItems(QRect(0, 0, width(), height()), true);
}
} else {
dockWindow = w;
bool vis = dockWindow->isVisible();
dockWindow->setParent(this);
dockWindow->move(0, 0);
if(vis)
dockWindow->show();
if (swap)
dockWindow->resize(dockWindow->height(), dockWindow->width());
w->installEventFilter(this);
}
lineStarts = layout->lineStarts();
lines = layout->lineList();
QRect rect = QRect(mapFromGlobal(r.topLeft()), r.size());
if (orientation() == Qt::Horizontal && QApplication::reverseLayout()) {
rect = QRect(width() - rect.x() - rect.width(), rect.y(), rect.width(), rect.height());
pos.rx() = width() - pos.x();
}
dockWindow->setOffset(point_pos(rect.topLeft(), orientation()));
if (orientation() == Qt::Horizontal) {
int offs = dockWindow->offset();
if (width() - offs < dockWindow->minimumWidth())
dockWindow->setOffset(width() - dockWindow->minimumWidth());
} else {
int offs = dockWindow->offset();
if (height() - offs < dockWindow->minimumHeight())
dockWindow->setOffset(height() - dockWindow->minimumHeight());
}
if (dockWindows.isEmpty()) {
dockWindows.append(dockWindow);
} else {
int dockLine = -1;
bool insertLine = false;
int i = 0;
QRect lineRect;
// find the line which we touched with the mouse
for (QList<QRect>::Iterator it = lines.begin(); it != lines.end(); ++it, ++i) {
if (point_pos(pos, orientation(), true) >= point_pos((*it).topLeft(), orientation(), true) &&
point_pos(pos, orientation(), true) <= point_pos((*it).topLeft(), orientation(), true) +
size_extent((*it).size(), orientation(), true)) {
dockLine = i;
lineRect = *it;
break;
}
}
if (dockLine == -1) { // outside the dock...
insertLine = true;
if (point_pos(pos, orientation(), true) < 0) // insert as first line
dockLine = 0;
else
dockLine = (int)lines.count(); // insert after the last line ### size_t/int cast
} else { // inside the dock (we have found a dockLine)
if (point_pos(pos, orientation(), true) <
point_pos(lineRect.topLeft(), orientation(), true) + 4) { // mouse was at the very beginning of the line
insertLine = true; // insert a new line before that with the docking widget
} else if (point_pos(pos, orientation(), true) >
point_pos(lineRect.topLeft(), orientation(), true) +
size_extent(lineRect.size(), orientation(), true) - 4) { // mouse was at the very and of the line
insertLine = true; // insert a line after that with the docking widget
dockLine++;
}
}
if (!insertLine && wasAloneInLine && lr.contains(pos)) // if we are alone in a line and just moved in there, re-insert it
insertLine = true;
#if defined(QDOCKAREA_DEBUG)
qDebug("insert in line %d, and insert that line: %d", dockLine, insertLine);
qDebug(" (btw, we have %d lines)", lines.count());
#endif
Q3DockWindow *dw = 0;
if (dockLine >= (int)lines.count()) { // insert after last line
dockWindows.append(dockWindow);
dockWindow->setNewLine(true);
#if defined(QDOCKAREA_DEBUG)
qDebug("insert at the end");
#endif
} else if (dockLine == 0 && insertLine) { // insert before first line
dockWindows.insert(0, dockWindow);
dockWindows.at(1)->setNewLine(true);
#if defined(QDOCKAREA_DEBUG)
qDebug("insert at the begin");
#endif
} else { // insert somewhere in between
// make sure each line start has a new line
for (int i = 0; i < lineStarts.size(); ++i) {
dw = lineStarts.at(i);
dw->setNewLine(true);
}
// find the index of the first widget in the search line
int searchLine = dockLine;
#if defined(QDOCKAREA_DEBUG)
qDebug("search line start of %d", searchLine);
#endif
Q3DockWindow *lsw = lineStarts.at(searchLine);
int index = dockWindows.indexOf(lsw);
if (index == -1) { // the linestart widget hasn't been found, try to find it harder
if (lsw == w && dockWindowIndex <= dockWindows.count())
index = dockWindowIndex;
else
index = 0;
}
#if defined(QDOCKAREA_DEBUG)
qDebug(" which starts at %d", index);
#endif
if (!insertLine) { // if we insert the docking widget in the existing line
// find the index for the widget
bool inc = true;
bool firstTime = true;
for (int i = index; i < dockWindows.size(); ++i) {
dw = dockWindows.at(i);
if (orientation() == Qt::Horizontal)
dw->setFixedExtentWidth(-1);
else
dw->setFixedExtentHeight(-1);
if (!firstTime && lineStarts.contains(dw)) // we are in the next line, so break
break;
if (point_pos(pos, orientation()) <
point_pos(fix_pos(dw), orientation()) + size_extent(dw->size(), orientation()) / 2) {
inc = false;
}
if (inc)
index++;
firstTime = false;
}
#if defined(QDOCKAREA_DEBUG)
qDebug("insert at index: %d", index);
#endif
// if we insert it just before a widget which has a new line, transfer the newline to the docking widget
// but not if we didn't only mave a widget in its line which was alone in the line before
if (!(wasAloneInLine && lr.contains(pos))
&& index >= 0 && index < dockWindows.count() &&
dockWindows.at(index)->newLine() && lineOf(index) == dockLine) {
#if defined(QDOCKAREA_DEBUG)
qDebug("get rid of the old newline and get me one");
#endif
dockWindows.at(index)->setNewLine(false);
dockWindow->setNewLine(true);
} else if (wasAloneInLine && lr.contains(pos)) {
dockWindow->setNewLine(true);
} else { // if we are somewhere in a line, get rid of the newline
dockWindow->setNewLine(false);
}
} else { // insert in a new line, so make sure the dock widget and the widget which will be after it have a newline
#if defined(QDOCKAREA_DEBUG)
qDebug("insert a new line");
#endif
if (index < dockWindows.count()) {
#if defined(QDOCKAREA_DEBUG)
qDebug("give the widget at %d a newline", index);
#endif
Q3DockWindow* nldw = dockWindows.at(index);
if (nldw)
nldw->setNewLine(true);
}
#if defined(QDOCKAREA_DEBUG)
qDebug("give me a newline");
#endif
dockWindow->setNewLine(true);
}
// finally insert the widget
dockWindows.insert(index, dockWindow);
}
}
if (mse != -10 && w->isResizeEnabled()) {
if (orientation() != Qt::Horizontal)
w->setFixedExtentWidth(qMin(qMax(w->minimumWidth(), mse), w->sizeHint().width()));
else
w->setFixedExtentHeight(qMin(qMax(w->minimumHeight(), mse), w->sizeHint().height()));
}
updateLayout();
setSizePolicy(QSizePolicy(orientation() == Qt::Horizontal ? QSizePolicy::Expanding : QSizePolicy::Minimum,
orientation() == Qt::Vertical ? QSizePolicy::Expanding : QSizePolicy::Minimum));
}