QSize Q3DockAreaLayout::minimumSize() const
{
if (dockWindows->isEmpty())
return QSize(0, 0);
if (dirty) {
Q3DockAreaLayout *that = (Q3DockAreaLayout *) this;
that->layoutItems(geometry());
}
int s = 0;
for (int i = 0; i < dockWindows->size(); ++i) {
Q3DockWindow *dw = dockWindows->at(i);
if (dw->isHidden())
continue;
s = qMax(s, dock_strut(dw, orientation()));
}
return orientation() == Qt::Horizontal ? QSize(0, s ? s+2 : 0) : QSize(s, 0);
}
QSize QDockAreaLayout::minimumSize() const
{
if ( !dockWindows || !dockWindows->first() )
return QSize( 0, 0 );
if ( dirty ) {
QDockAreaLayout *that = (QDockAreaLayout *) this;
that->layoutItems( geometry() );
}
int s = 0;
QPtrListIterator<QDockWindow> it( *dockWindows );
QDockWindow *dw = 0;
while ( ( dw = it.current() ) != 0 ) {
++it;
if ( dw->isHidden() )
continue;
s = QMAX( s, dock_strut( dw, orientation() ) );
}
return orientation() == Horizontal ? QSize( 0, s ? s+2 : 0 ) : QSize( s, 0 );
}
int Q3DockAreaLayout::layoutItems(const QRect &rect, bool testonly)
{
if (dockWindows->isEmpty())
return 0;
dirty = false;
// some corrections
QRect r = rect;
if (orientation() == Qt::Vertical)
r.setHeight(r.height() - 3);
// init
lines.clear();
ls.clear();
int start = start_pos(r, orientation());
int pos = start;
int sectionpos = 0;
int linestrut = 0;
QList<Q3DockData> lastLine;
int tbstrut = -1;
int maxsize = size_extent(rect.size(), orientation());
int visibleWindows = 0;
// go through all widgets in the dock
for (int i = 0; i < dockWindows->size(); ++i) {
Q3DockWindow *dw = dockWindows->at(i);
if (dw->isHidden())
continue;
++visibleWindows;
// find position for the widget: This is the maximum of the
// end of the previous widget and the offset of the widget. If
// the position + the width of the widget dosn't fit into the
// dock, try moving it a bit back, if possible.
int op = pos;
int dockExtend = dock_extent(dw, orientation(), maxsize);
if (!dw->isStretchable()) {
pos = qMax(pos, dw->offset());
if (pos + dockExtend > size_extent(r.size(), orientation()) - 1)
pos = qMax(op, size_extent(r.size(), orientation()) - 1 - dockExtend);
}
if (!lastLine.isEmpty() && !dw->newLine() && space_left(rect, pos, orientation()) < dockExtend)
shrink_extend(dw, dockExtend, space_left(rect, pos, orientation()), orientation());
// if the current widget doesn't fit into the line anymore and it is not the first widget of the line
if (!lastLine.isEmpty() &&
(space_left(rect, pos, orientation()) < dockExtend || dw->newLine())) {
if (!testonly) // place the last line, if not in test mode
place_line(lastLine, orientation(), linestrut, size_extent(r.size(), orientation()), tbstrut, maxsize, this);
// remember the line coordinats of the last line
if (orientation() == Qt::Horizontal)
lines.append(QRect(0, sectionpos, r.width(), linestrut));
else
lines.append(QRect(sectionpos, 0, linestrut, r.height()));
// do some clearing for the next line
lastLine.clear();
sectionpos += linestrut;
linestrut = 0;
pos = start;
tbstrut = -1;
}
// remember first widget of a line
if (lastLine.isEmpty()) {
ls.append(dw);
// try to make the best position
int op = pos;
if (!dw->isStretchable())
pos = qMax(pos, dw->offset());
if (pos + dockExtend > size_extent(r.size(), orientation()) - 1)
pos = qMax(op, size_extent(r.size(), orientation()) - 1 - dockExtend);
}
// do some calculations and add the remember the rect which the docking widget requires for the placing
QRect dwRect(pos, sectionpos, dockExtend, dock_strut(dw, orientation() ));
lastLine.append(Q3DockData(dw, dwRect));
if (qobject_cast<Q3ToolBar*>(dw))
tbstrut = qMax(tbstrut, dock_strut(dw, orientation()));
linestrut = qMax(dock_strut(dw, orientation()), linestrut);
add_size(dockExtend, pos, orientation());
}
// if some stuff was not placed/stored yet, do it now
if (!testonly)
place_line(lastLine, orientation(), linestrut, size_extent(r.size(), orientation()), tbstrut, maxsize, this);
if (orientation() == Qt::Horizontal)
lines.append(QRect(0, sectionpos, r.width(), linestrut));
else
lines.append(QRect(sectionpos, 0, linestrut, r.height()));
if (lines.size() >= 2 && *(--lines.end()) == *(--(--lines.end())))
lines.removeLast();
bool hadResizable = false;
for (int i = 0; i < dockWindows->size(); ++i) {
Q3DockWindow *dw = dockWindows->at(i);
if (!dw->isVisibleTo(parentWidget))
continue;
hadResizable = hadResizable || dw->isResizeEnabled();
dw->updateSplitterVisibility(visibleWindows > 1); //!dw->area()->isLastDockWindow(dw));
if (Q3ToolBar *tb = qobject_cast<Q3ToolBar *>(dw))
tb->checkForExtension(dw->size());
}
return sectionpos + linestrut;
}
