static void place_line( QValueList<DockData> &lastLine, Qt::Orientation o, int linestrut, int fullextent, int tbstrut, int maxsize, QDockAreaLayout * )
{
QDockWindow *last = 0;
QRect lastRect;
for ( QValueList<DockData>::Iterator it = lastLine.begin(); it != lastLine.end(); ++it ) {
if ( tbstrut != -1 && ::qt_cast<QToolBar*>((*it).w) )
(*it).rect.setHeight( tbstrut );
if ( !last ) {
last = (*it).w;
lastRect = (*it).rect;
continue;
}
if ( !last->isStretchable() ) {
int w = QMIN( lastRect.width(), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w, lastRect.height(), o );
} else {
int w = QMIN( (*it).rect.x() - lastRect.x(), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w,
last->isResizeEnabled() ? linestrut : lastRect.height(), o );
}
last = (*it).w;
lastRect = (*it).rect;
}
if ( !last )
return;
if ( !last->isStretchable() ) {
int w = QMIN( lastRect.width(), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w, lastRect.height(), o );
} else {
int w = QMIN( fullextent - lastRect.x() - ( o == Qt::Vertical ? 1 : 0 ), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w,
last->isResizeEnabled() ? linestrut : lastRect.height(), o );
}
}
int QDockAreaLayout::layoutItems( const QRect &rect, bool testonly )
{
if ( !dockWindows || !dockWindows->first() )
return 0;
dirty = FALSE;
// some corrections
QRect r = rect;
if ( orientation() == Vertical )
r.setHeight( r.height() - 3 );
// init
lines.clear();
ls.clear();
QPtrListIterator<QDockWindow> it( *dockWindows );
QDockWindow *dw = 0;
int start = start_pos( r, orientation() );
int pos = start;
int sectionpos = 0;
int linestrut = 0;
QValueList<DockData> lastLine;
int tbstrut = -1;
int maxsize = size_extent( rect.size(), orientation() );
int visibleWindows = 0;
// go through all widgets in the dock
while ( ( dw = it.current() ) != 0 ) {
++it;
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() == 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;
}
// remeber 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( DockData( dw, dwRect ) );
if ( ::qt_cast<QToolBar*>(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() == Horizontal )
lines.append( QRect( 0, sectionpos, r.width(), linestrut ) );
else
lines.append( QRect( sectionpos, 0, linestrut, r.height() ) );
if ( *(--lines.end()) == *(--(--lines.end())) )
lines.remove( lines.at( lines.count() - 1 ) );
it.toFirst();
bool hadResizable = FALSE;
while ( ( dw = it.current() ) != 0 ) {
++it;
if ( !dw->isVisibleTo( parentWidget ) )
continue;
hadResizable = hadResizable || dw->isResizeEnabled();
dw->updateSplitterVisibility( visibleWindows > 1 ); //!dw->area()->isLastDockWindow( dw ) );
}
return sectionpos + linestrut;
}