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|
/****************************************************************************
**
** Implementation of the TQDockArea class
**
** Created : 001010
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the workspace module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing retquirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "qdockarea.h"
#ifndef QT_NO_MAINWINDOW
#include "qsplitter.h"
#include "qlayout.h"
#include "qptrvector.h"
#include "qapplication.h"
#include "qpainter.h"
#include "qwidgetlist.h"
#include "qmap.h"
#include "qmainwindow.h"
//#define TQDOCKAREA_DEBUG
struct Q_EXPORT DockData
{
DockData() : w( 0 ), rect() {}
DockData( TQDockWindow *dw, const TQRect &r ) : w( dw ), rect( r ) {}
TQDockWindow *w;
TQRect rect;
Q_DUMMY_COMPARISON_OPERATOR( DockData )
};
static int fix_x( TQDockWindow* w, int width = -1 ) {
if ( TQApplication::reverseLayout() ) {
if ( width < 0 )
width = w->width();
return w->parentWidget()->width() - w->x() - width;
}
return w->x();
}
static int fix_x( TQDockWindow* w, int x, int width = -1 ) {
if ( TQApplication::reverseLayout() ) {
if ( width < 0 )
width = w->width();
return w->parentWidget()->width() - x - width;
}
return x;
}
static TQPoint fix_pos( TQDockWindow* w ) {
if ( TQApplication::reverseLayout() ) {
TQPoint p = w->pos();
p.rx() = w->parentWidget()->width() - p.x() - w->width();
return p;
}
return w->pos();
}
void TQDockAreaLayout::setGeometry( const TQRect &r )
{
TQLayout::setGeometry( r );
layoutItems( r );
}
TQLayoutIterator TQDockAreaLayout::iterator()
{
return 0;
}
TQSize TQDockAreaLayout::sizeHint() const
{
if ( !dockWindows || !dockWindows->first() )
return TQSize( 0, 0 );
if ( dirty ) {
TQDockAreaLayout *that = (TQDockAreaLayout *) this;
that->layoutItems( geometry() );
}
int w = 0;
int h = 0;
TQPtrListIterator<TQDockWindow> it( *dockWindows );
TQDockWindow *dw = 0;
it.toFirst();
int y = -1;
int x = -1;
int ph = 0;
int pw = 0;
while ( ( dw = it.current() ) != 0 ) {
int plush = 0, plusw = 0;
++it;
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 = TQMAX( h, dw->height() + plush );
w = TQMAX( w, dw->width() + plusw );
}
if ( hasHeightForWidth() )
return TQSize( 0, h );
return TQSize( w, 0 );
}
bool TQDockAreaLayout::hasHeightForWidth() const
{
return orient == Horizontal;
}
void TQDockAreaLayout::init()
{
dirty = TRUE;
cached_width = 0;
cached_height = 0;
cached_hfw = -1;
cached_wfh = -1;
}
void TQDockAreaLayout::invalidate()
{
dirty = TRUE;
cached_width = 0;
cached_height = 0;
}
static int start_pos( const TQRect &r, TQt::Orientation o )
{
if ( o == TQt::Horizontal ) {
return TQMAX( 0, r.x() );
} else {
return TQMAX( 0, r.y() );
}
}
static void add_size( int s, int &pos, TQt::Orientation o )
{
if ( o == TQt::Horizontal ) {
pos += s;
} else {
pos += s;
}
}
static int space_left( const TQRect &r, int pos, TQt::Orientation o )
{
if ( o == TQt::Horizontal ) {
return ( r.x() + r.width() ) - pos;
} else {
return ( r.y() + r.height() ) - pos;
}
}
static int dock_extent( TQDockWindow *w, TQt::Orientation o, int maxsize )
{
if ( o == TQt::Horizontal )
return TQMIN( maxsize, TQMAX( w->sizeHint().width(), w->fixedExtent().width() ) );
else
return TQMIN( maxsize, TQMAX( w->sizeHint().height(), w->fixedExtent().height() ) );
}
static int dock_strut( TQDockWindow *w, TQt::Orientation o )
{
if ( o != TQt::Horizontal ) {
int wid;
if ( ( wid = w->fixedExtent().width() ) != -1 )
return TQMAX( wid, TQMAX( w->minimumSize().width(), w->minimumSizeHint().width() ) );
return TQMAX( w->sizeHint().width(), TQMAX( w->minimumSize().width(), w->minimumSizeHint().width() ) );
} else {
int hei;
if ( ( hei = w->fixedExtent().height() ) != -1 )
return TQMAX( hei, TQMAX( w->minimumSizeHint().height(), w->minimumSize().height() ) );
return TQMAX( w->sizeHint().height(), TQMAX( w->minimumSizeHint().height(), w->minimumSize().height() ) );
}
}
static void set_geometry( TQDockWindow *w, int pos, int sectionpos, int extent, int strut, TQt::Orientation o )
{
if ( o == TQt::Horizontal )
w->setGeometry( fix_x( w, pos, extent), sectionpos, extent, strut );
else
w->setGeometry( sectionpos, pos, strut, extent );
}
static int size_extent( const TQSize &s, TQt::Orientation o, bool swap = FALSE )
{
return o == TQt::Horizontal ? ( swap ? s.height() : s.width() ) : ( swap ? s.width() : s.height() );
}
static int point_pos( const TQPoint &p, TQt::Orientation o, bool swap = FALSE )
{
return o == TQt::Horizontal ? ( swap ? p.y() : p.x() ) : ( swap ? p.x() : p.y() );
}
static void shrink_extend( TQDockWindow *dw, int &dockExtend, int /*spaceLeft*/, TQt::Orientation o )
{
TQToolBar *tb = ::qt_cast<TQToolBar*>(dw);
if ( o == TQt::Horizontal ) {
int mw = 0;
if ( !tb )
mw = dw->minimumWidth();
else
mw = dw->sizeHint().width();
dockExtend = mw;
} else {
int mh = 0;
if ( !tb )
mh = dw->minimumHeight();
else
mh = dw->sizeHint().height();
dockExtend = mh;
}
}
static void place_line( TQValueList<DockData> &lastLine, TQt::Orientation o, int linestrut, int fullextent, int tbstrut, int maxsize, TQDockAreaLayout * )
{
TQDockWindow *last = 0;
TQRect lastRect;
for ( TQValueList<DockData>::Iterator it = lastLine.begin(); it != lastLine.end(); ++it ) {
if ( tbstrut != -1 && ::qt_cast<TQToolBar*>((*it).w) )
(*it).rect.setHeight( tbstrut );
if ( !last ) {
last = (*it).w;
lastRect = (*it).rect;
continue;
}
if ( !last->isStretchable() ) {
int w = TQMIN( lastRect.width(), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w, lastRect.height(), o );
} else {
int w = TQMIN( (*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 = TQMIN( lastRect.width(), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w, lastRect.height(), o );
} else {
int w = TQMIN( fullextent - lastRect.x() - ( o == TQt::Vertical ? 1 : 0 ), maxsize );
set_geometry( last, lastRect.x(), lastRect.y(), w,
last->isResizeEnabled() ? linestrut : lastRect.height(), o );
}
}
TQSize TQDockAreaLayout::minimumSize() const
{
if ( !dockWindows || !dockWindows->first() )
return TQSize( 0, 0 );
if ( dirty ) {
TQDockAreaLayout *that = (TQDockAreaLayout *) this;
that->layoutItems( geometry() );
}
int s = 0;
TQPtrListIterator<TQDockWindow> it( *dockWindows );
TQDockWindow *dw = 0;
while ( ( dw = it.current() ) != 0 ) {
++it;
if ( dw->isHidden() )
continue;
s = TQMAX( s, dock_strut( dw, orientation() ) );
}
return orientation() == Horizontal ? TQSize( 0, s ? s+2 : 0 ) : TQSize( s, 0 );
}
int TQDockAreaLayout::layoutItems( const TQRect &rect, bool testonly )
{
if ( !dockWindows || !dockWindows->first() )
return 0;
dirty = FALSE;
// some corrections
TQRect r = rect;
if ( orientation() == Vertical )
r.setHeight( r.height() - 3 );
// init
lines.clear();
ls.clear();
TQPtrListIterator<TQDockWindow> it( *dockWindows );
TQDockWindow *dw = 0;
int start = start_pos( r, orientation() );
int pos = start;
int sectionpos = 0;
int linestrut = 0;
TQValueList<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 = TQMAX( pos, dw->offset() );
if ( pos + dockExtend > size_extent( r.size(), orientation() ) - 1 )
pos = TQMAX( 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( TQRect( 0, sectionpos, r.width(), linestrut ) );
else
lines.append( TQRect( 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 = TQMAX( pos, dw->offset() );
if ( pos + dockExtend > size_extent( r.size(), orientation() ) - 1 )
pos = TQMAX( op, size_extent( r.size(), orientation() ) - 1 - dockExtend );
}
// do some calculations and add the remember the rect which the docking widget retquires for the placing
TQRect dwRect(pos, sectionpos, dockExtend, dock_strut( dw, orientation() ) );
lastLine.append( DockData( dw, dwRect ) );
if ( ::qt_cast<TQToolBar*>(dw) )
tbstrut = TQMAX( tbstrut, dock_strut( dw, orientation() ) );
linestrut = TQMAX( 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( TQRect( 0, sectionpos, r.width(), linestrut ) );
else
lines.append( TQRect( 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;
}
int TQDockAreaLayout::heightForWidth( int w ) const
{
if ( dockWindows->isEmpty() && parentWidget )
return parentWidget->minimumHeight();
if ( cached_width != w ) {
TQDockAreaLayout * mthis = (TQDockAreaLayout*)this;
mthis->cached_width = w;
int h = mthis->layoutItems( TQRect( 0, 0, w, 0 ), TRUE );
mthis->cached_hfw = h;
return h;
}
return cached_hfw;
}
int TQDockAreaLayout::widthForHeight( int h ) const
{
if ( cached_height != h ) {
TQDockAreaLayout * mthis = (TQDockAreaLayout*)this;
mthis->cached_height = h;
int w = mthis->layoutItems( TQRect( 0, 0, 0, h ), TRUE );
mthis->cached_wfh = w;
return w;
}
return cached_wfh;
}
/*!
\class TQDockArea qdockarea.h
\brief The TQDockArea class manages and lays out TQDockWindows.
\ingroup application
A TQDockArea is a container which manages a list of
\l{TQDockWindow}s which it lays out within its area. In cooperation
with the \l{TQDockWindow}s it is responsible for the docking and
undocking of \l{TQDockWindow}s and moving them inside the dock
area. TQDockAreas also handle the wrapping of \l{TQDockWindow}s to
fill the available space as compactly as possible. TQDockAreas can
contain TQToolBars since TQToolBar is a TQDockWindow subclass.
TQMainWindow contains four TQDockAreas which you can use for your
TQToolBars and TQDockWindows, so in most situations you do not need
to use the TQDockArea class directly. Although TQMainWindow contains
support for its own dock areas it isn't convenient for adding new
TQDockAreas. If you need to create your own dock areas we suggest
that you create a subclass of TQWidget and add your TQDockAreas to
your subclass.
\img qmainwindow-qdockareas.png TQMainWindow's TQDockAreas
\target lines
\e Lines. TQDockArea uses the concept of lines. A line is a
horizontal region which may contain dock windows side-by-side. A
dock area may have room for more than one line. When dock windows
are docked into a dock area they are usually added at the right
hand side of the top-most line that has room (unless manually
placed by the user). When users move dock windows they may leave
empty lines or gaps in non-empty lines. Dock windows can be lined
up to minimize wasted space using the lineUp() function.
The TQDockArea class maintains a position list of all its child
dock windows. Dock windows are added to a dock area from position
0 onwards. Dock windows are laid out sequentially in position
order from left to right, and in the case of multiple lines of
dock windows, from top to bottom. If a dock window is floated it
still retains its position since this is where the window will
return if the user double clicks its caption. A dock window's
position can be determined with hasDockWindow(). The position can
be changed with moveDockWindow().
To dock or undock a dock window use TQDockWindow::dock() and
TQDockWindow::undock() respectively. If you want to control which
dock windows can dock in a dock area use setAcceptDockWindow(). To
see if a dock area contains a particular dock window use
\l{hasDockWindow()}; to see how many dock windows a dock area
contains use count().
The streaming operators can write the positions of the dock
windows in the dock area to a TQTextStream. The positions can be
read back later to restore the saved positions.
Save the positions to a TQTextStream:
\code
ts << *myDockArea;
\endcode
Restore the positions from a TQTextStream:
\code
ts >> *myDockArea;
\endcode
*/
/*!
\property TQDockArea::handlePosition
\brief where the dock window splitter handle is placed in the dock
area
The default position is \c Normal.
*/
/*!
\property TQDockArea::orientation
\brief the dock area's orientation
There is no default value; the orientation is specified in the
constructor.
*/
/*!
\enum TQDockArea::HandlePosition
A dock window has two kinds of handles, the dock window handle
used for dragging the dock window, and the splitter handle used to
resize the dock window in relation to other dock windows using a
splitter. (The splitter handle is only visible for docked
windows.)
This enum specifies where the dock window splitter handle is
placed in the dock area.
\value Normal The splitter handles of dock windows are placed at
the right or bottom.
\value Reverse The splitter handles of dock windows are placed at
the left or top.
*/
/*!
Constructs a TQDockArea with orientation \a o, HandlePosition \a h,
parent \a parent and called \a name.
*/
TQDockArea::TQDockArea( Orientation o, HandlePosition h, TQWidget *parent, const char *name )
: TQWidget( parent, name ), orient( o ), layout( 0 ), hPos( h )
{
dockWindows = new TQPtrList<TQDockWindow>;
layout = new TQDockAreaLayout( this, o, dockWindows, 0, 0, "toollayout" );
installEventFilter( this );
}
/*!
Destroys the dock area and all the dock windows docked in the dock
area.
Does not affect any floating dock windows or dock windows in other
dock areas, even if they first appeared in this dock area.
Floating dock windows are effectively top level windows and are
not child windows of the dock area. When a floating dock window is
docked (dragged into a dock area) its parent becomes the dock
area.
*/
TQDockArea::~TQDockArea()
{
dockWindows->setAutoDelete( TRUE );
delete dockWindows;
dockWindows = 0;
}
/*!
Moves the TQDockWindow \a w within the dock area. If \a w is not
already docked in this area, \a w is docked first. If \a index is
-1 or larger than the number of docked widgets, \a w is appended
at the end, otherwise it is inserted at the position \a index.
*/
void TQDockArea::moveDockWindow( TQDockWindow *w, int index )
{
invalidateFixedSizes();
TQDockWindow *dockWindow = 0;
int dockWindowIndex = findDockWindow( w );
if ( dockWindowIndex == -1 ) {
dockWindow = w;
dockWindow->reparent( this, TQPoint( 0, 0 ), TRUE );
w->installEventFilter( this );
updateLayout();
setSizePolicy( TQSizePolicy( orientation() == Horizontal ? TQSizePolicy::Expanding : TQSizePolicy::Minimum,
orientation() == Vertical ? TQSizePolicy::Expanding : TQSizePolicy::Minimum ) );
dockWindows->append( w );
} else {
if ( w->parent() != this )
w->reparent( this, TQPoint( 0, 0 ), TRUE );
if ( index == - 1 ) {
dockWindows->removeRef( w );
dockWindows->append( w );
}
}
w->dockArea = this;
w->curPlace = TQDockWindow::InDock;
w->updateGui();
if ( index != -1 && index < (int)dockWindows->count() ) {
dockWindows->removeRef( w );
dockWindows->insert( index, w );
}
}
/*!
Returns TRUE if the dock area contains the dock window \a w;
otherwise returns FALSE. If \a index is not 0 it will be set as
follows: if the dock area contains the dock window \a *index is
set to \a w's index position; otherwise \a *index is set to -1.
*/
bool TQDockArea::hasDockWindow( TQDockWindow *w, int *index )
{
int i = dockWindows->findRef( w );
if ( index )
*index = i;
return i != -1;
}
int TQDockArea::lineOf( int index )
{
TQPtrList<TQDockWindow> lineStarts = layout->lineStarts();
int i = 0;
for ( TQDockWindow *w = lineStarts.first(); w; w = lineStarts.next(), ++i ) {
if ( dockWindows->find( w ) >= index )
return i;
}
return i;
}
/*!
\overload
Moves the dock window \a w inside the dock area where \a p is the
new position (in global screen coordinates), \a r is the suggested
rectangle of the dock window and \a swap specifies whether or not
the orientation of the docked widget needs to be changed.
This function is used internally by TQDockWindow. You shouldn't
need to call it yourself.
*/
void TQDockArea::moveDockWindow( TQDockWindow *w, const TQPoint &p, const TQRect &r, bool swap )
{
invalidateFixedSizes();
int mse = -10;
bool hasResizable = FALSE;
for ( TQDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
if ( dw->isHidden() )
continue;
if ( dw->isResizeEnabled() )
hasResizable = TRUE;
if ( orientation() != TQt::Horizontal )
mse = TQMAX( TQMAX( dw->fixedExtent().width(), dw->width() ), mse );
else
mse = TQMAX( TQMAX( dw->fixedExtent().height(), dw->height() ), mse );
}
if ( !hasResizable && w->isResizeEnabled() ) {
if ( orientation() != TQt::Horizontal )
mse = TQMAX( w->fixedExtent().width(), mse );
else
mse = TQMAX( w->fixedExtent().height(), mse );
}
TQDockWindow *dockWindow = 0;
int dockWindowIndex = findDockWindow( w );
TQPtrList<TQDockWindow> lineStarts = layout->lineStarts();
TQValueList<TQRect> lines = layout->lineList();
bool wasAloneInLine = FALSE;
TQPoint pos = mapFromGlobal( p );
TQRect lr = *lines.at( lineOf( dockWindowIndex ) );
if ( dockWindowIndex != -1 ) {
if ( lineStarts.find( w ) != -1 &&
( dockWindowIndex < (int)dockWindows->count() - 1 && lineStarts.find( dockWindows->at( dockWindowIndex + 1 ) ) != -1 ||
dockWindowIndex == (int)dockWindows->count() - 1 ) )
wasAloneInLine = TRUE;
dockWindow = dockWindows->take( dockWindowIndex );
if ( !wasAloneInLine ) { // only do the pre-layout if the widget isn't the only one in its line
if ( lineStarts.findRef( dockWindow ) != -1 && dockWindowIndex < (int)dockWindows->count() )
dockWindows->at( dockWindowIndex )->setNewLine( TRUE );
layout->layoutItems( TQRect( 0, 0, width(), height() ), TRUE );
}
} else {
dockWindow = w;
dockWindow->reparent( this, TQPoint( 0, 0 ), TRUE );
if ( swap )
dockWindow->resize( dockWindow->height(), dockWindow->width() );
w->installEventFilter( this );
}
lineStarts = layout->lineStarts();
lines = layout->lineList();
TQRect rect = TQRect( mapFromGlobal( r.topLeft() ), r.size() );
if ( orientation() == Horizontal && TQApplication::reverseLayout() ) {
rect = TQRect( 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() == 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;
TQRect lineRect;
// find the line which we touched with the mouse
for ( TQValueList<TQRect>::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(TQDOCKAREA_DEBUG)
qDebug( "insert in line %d, and insert that line: %d", dockLine, insertLine );
qDebug( " (btw, we have %d lines)", lines.count() );
#endif
TQDockWindow *dw = 0;
if ( dockLine >= (int)lines.count() ) { // insert after last line
dockWindows->append( dockWindow );
dockWindow->setNewLine( TRUE );
#if defined(TQDOCKAREA_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(TQDOCKAREA_DEBUG)
qDebug( "insert at the begin" );
#endif
} else { // insert somewhere in between
// make sure each line start has a new line
for ( dw = lineStarts.first(); dw; dw = lineStarts.next() )
dw->setNewLine( TRUE );
// find the index of the first widget in the search line
int searchLine = dockLine;
#if defined(TQDOCKAREA_DEBUG)
qDebug( "search line start of %d", searchLine );
#endif
TQDockWindow *lsw = lineStarts.at( searchLine );
int index = dockWindows->find( lsw );
if ( index == -1 ) { // the linestart widget hasn't been found, try to find it harder
if ( lsw == w && dockWindowIndex <= (int)dockWindows->count())
index = dockWindowIndex;
else
index = 0;
if ( index < (int)dockWindows->count() )
(void)dockWindows->at( index ); // move current to index
}
#if defined(TQDOCKAREA_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 ( dw = dockWindows->current(); dw; dw = dockWindows->next() ) {
if ( orientation() == Horizontal )
dw->setFixedExtentWidth( -1 );
else
dw->setFixedExtentHeight( -1 );
if ( !firstTime && lineStarts.find( dw ) != -1 ) // 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(TQDOCKAREA_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 < (int)dockWindows->count() &&
dockWindows->at( index )->newLine() && lineOf( index ) == dockLine ) {
#if defined(TQDOCKAREA_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(TQDOCKAREA_DEBUG)
qDebug( "insert a new line" );
#endif
if ( index < (int)dockWindows->count() ) {
#if defined(TQDOCKAREA_DEBUG)
qDebug( "give the widget at %d a newline", index );
#endif
TQDockWindow* nldw = dockWindows->at( index );
if ( nldw )
nldw->setNewLine( TRUE );
}
#if defined(TQDOCKAREA_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() != TQt::Horizontal )
w->setFixedExtentWidth( TQMIN( TQMAX( w->minimumWidth(), mse ), w->sizeHint().width() ) );
else
w->setFixedExtentHeight( TQMIN( TQMAX( w->minimumHeight(), mse ), w->sizeHint().height() ) );
}
updateLayout();
setSizePolicy( TQSizePolicy( orientation() == Horizontal ? TQSizePolicy::Expanding : TQSizePolicy::Minimum,
orientation() == Vertical ? TQSizePolicy::Expanding : TQSizePolicy::Minimum ) );
}
/*!
Removes the dock window \a w from the dock area. If \a
makeFloating is TRUE, \a w gets floated, and if \a swap is TRUE,
the orientation of \a w gets swapped. If \a fixNewLines is TRUE
(the default) newlines in the area will be fixed.
You should never need to call this function yourself. Use
TQDockWindow::dock() and TQDockWindow::undock() instead.
*/
void TQDockArea::removeDockWindow( TQDockWindow *w, bool makeFloating, bool swap, bool fixNewLines )
{
w->removeEventFilter( this );
TQDockWindow *dockWindow = 0;
int i = findDockWindow( w );
if ( i == -1 )
return;
dockWindow = dockWindows->at( i );
dockWindows->remove( i );
TQPtrList<TQDockWindow> lineStarts = layout->lineStarts();
if ( fixNewLines && lineStarts.findRef( dockWindow ) != -1 && i < (int)dockWindows->count() )
dockWindows->at( i )->setNewLine( TRUE );
if ( makeFloating ) {
TQWidget *p = parentWidget() ? parentWidget() : topLevelWidget();
dockWindow->reparent( p, WType_Dialog | WStyle_Customize | WStyle_NoBorder | WStyle_Tool, TQPoint( 0, 0 ), FALSE );
}
if ( swap )
dockWindow->resize( dockWindow->height(), dockWindow->width() );
updateLayout();
if ( dockWindows->isEmpty() )
setSizePolicy( TQSizePolicy( TQSizePolicy::Preferred, TQSizePolicy::Preferred ) );
}
int TQDockArea::findDockWindow( TQDockWindow *w )
{
return dockWindows ? dockWindows->findRef( w ) : -1;
}
void TQDockArea::updateLayout()
{
layout->invalidate();
layout->activate();
}
/*! \reimp
*/
bool TQDockArea::eventFilter( TQObject *o, TQEvent *e )
{
if ( e->type() == TQEvent::Close ) {
if ( ::qt_cast<TQDockWindow*>(o) ) {
o->removeEventFilter( this );
TQApplication::sendEvent( o, e );
if ( ( (TQCloseEvent*)e )->isAccepted() )
removeDockWindow( (TQDockWindow*)o, FALSE, FALSE );
return TRUE;
}
}
return FALSE;
}
/*! \internal
Invalidates the offset of the next dock window in the dock area.
*/
void TQDockArea::invalidNextOffset( TQDockWindow *dw )
{
int i = dockWindows->find( dw );
if ( i == -1 || i >= (int)dockWindows->count() - 1 )
return;
if ( ( dw = dockWindows->at( ++i ) ) )
dw->setOffset( 0 );
}
/*!
\property TQDockArea::count
\brief the number of dock windows in the dock area
*/
int TQDockArea::count() const
{
return dockWindows->count();
}
/*!
\property TQDockArea::empty
\brief whether the dock area is empty
*/
bool TQDockArea::isEmpty() const
{
return dockWindows->isEmpty();
}
/*!
Returns a list of the dock windows in the dock area.
*/
TQPtrList<TQDockWindow> TQDockArea::dockWindowList() const
{
return *dockWindows;
}
/*!
Lines up the dock windows in this dock area to minimize wasted
space. If \a keepNewLines is TRUE, only space within lines is
cleaned up. If \a keepNewLines is FALSE the number of lines might
be changed.
*/
void TQDockArea::lineUp( bool keepNewLines )
{
for ( TQDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
dw->setOffset( 0 );
if ( !keepNewLines )
dw->setNewLine( FALSE );
}
layout->activate();
}
TQDockArea::DockWindowData *TQDockArea::dockWindowData( TQDockWindow *w )
{
DockWindowData *data = new DockWindowData;
data->index = findDockWindow( w );
if ( data->index == -1 ) {
delete data;
return 0;
}
TQPtrList<TQDockWindow> lineStarts = layout->lineStarts();
int i = -1;
for ( TQDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
if ( lineStarts.findRef( dw ) != -1 )
++i;
if ( dw == w )
break;
}
data->line = i;
data->offset = point_pos( TQPoint( fix_x(w), w->y() ), orientation() );
data->area = this;
data->fixedExtent = w->fixedExtent();
return data;
}
void TQDockArea::dockWindow( TQDockWindow *dockWindow, DockWindowData *data )
{
if ( !data )
return;
dockWindow->reparent( this, TQPoint( 0, 0 ), FALSE );
dockWindow->installEventFilter( this );
dockWindow->dockArea = this;
dockWindow->updateGui();
if ( dockWindows->isEmpty() ) {
dockWindows->append( dockWindow );
} else {
TQPtrList<TQDockWindow> lineStarts = layout->lineStarts();
int index = 0;
if ( (int)lineStarts.count() > data->line )
index = dockWindows->find( lineStarts.at( data->line ) );
if ( index == -1 ) {
index = 0;
(void)dockWindows->at( index );
}
bool firstTime = TRUE;
int offset = data->offset;
for ( TQDockWindow *dw = dockWindows->current(); dw; dw = dockWindows->next() ) {
if ( !firstTime && lineStarts.find( dw ) != -1 )
break;
if ( offset <
point_pos( fix_pos( dw ), orientation() ) + size_extent( dw->size(), orientation() ) / 2 )
break;
index++;
firstTime = FALSE;
}
if ( index >= 0 && index < (int)dockWindows->count() &&
dockWindows->at( index )->newLine() && lineOf( index ) == data->line ) {
dockWindows->at( index )->setNewLine( FALSE );
dockWindow->setNewLine( TRUE );
} else {
dockWindow->setNewLine( FALSE );
}
dockWindows->insert( index, dockWindow );
}
dockWindow->show();
dockWindow->setFixedExtentWidth( data->fixedExtent.width() );
dockWindow->setFixedExtentHeight( data->fixedExtent.height() );
updateLayout();
setSizePolicy( TQSizePolicy( orientation() == Horizontal ? TQSizePolicy::Expanding : TQSizePolicy::Minimum,
orientation() == Vertical ? TQSizePolicy::Expanding : TQSizePolicy::Minimum ) );
}
/*!
Returns TRUE if dock window \a dw could be docked into the dock
area; otherwise returns FALSE.
\sa setAcceptDockWindow()
*/
bool TQDockArea::isDockWindowAccepted( TQDockWindow *dw )
{
if ( !dw )
return FALSE;
if ( forbiddenWidgets.findRef( dw ) != -1 )
return FALSE;
TQMainWindow *mw = ::qt_cast<TQMainWindow*>(parentWidget());
if ( !mw )
return TRUE;
if ( !mw->hasDockWindow( dw ) )
return FALSE;
if ( !mw->isDockEnabled( this ) )
return FALSE;
if ( !mw->isDockEnabled( dw, this ) )
return FALSE;
return TRUE;
}
/*!
If \a accept is TRUE, dock window \a dw can be docked in the dock
area. If \a accept is FALSE, dock window \a dw cannot be docked in
the dock area.
\sa isDockWindowAccepted()
*/
void TQDockArea::setAcceptDockWindow( TQDockWindow *dw, bool accept )
{
if ( accept )
forbiddenWidgets.removeRef( dw );
else if ( forbiddenWidgets.findRef( dw ) == -1 )
forbiddenWidgets.append( dw );
}
void TQDockArea::invalidateFixedSizes()
{
for ( TQDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
if ( orientation() == TQt::Horizontal )
dw->setFixedExtentWidth( -1 );
else
dw->setFixedExtentHeight( -1 );
}
}
int TQDockArea::maxSpace( int hint, TQDockWindow *dw )
{
int index = findDockWindow( dw );
if ( index == -1 || index + 1 >= (int)dockWindows->count() ) {
if ( orientation() == Horizontal )
return dw->width();
return dw->height();
}
TQDockWindow *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() == Horizontal )
return dw->width();
return dw->height();
}
int min = 0;
TQToolBar *tb = ::qt_cast<TQToolBar*>(w);
if ( orientation() == Horizontal ) {
w->setFixedExtentWidth( -1 );
if ( !tb )
min = TQMAX( w->minimumSize().width(), w->minimumSizeHint().width() );
else
min = w->sizeHint().width();
} else {
w->setFixedExtentHeight( -1 );
if ( !tb )
min = TQMAX( w->minimumSize().height(), w->minimumSizeHint().height() );
else
min = w->sizeHint().height();
}
int diff = hint - ( orientation() == Horizontal ? dw->width() : dw->height() );
if ( ( orientation() == Horizontal ? w->width() : w->height() ) - diff < min )
hint = ( orientation() == Horizontal ? dw->width() : dw->height() ) + ( orientation() == Horizontal ? w->width() : w->height() ) - min;
diff = hint - ( orientation() == Horizontal ? dw->width() : dw->height() );
if ( orientation() == Horizontal )
w->setFixedExtentWidth( w->width() - diff );
else
w->setFixedExtentHeight( w->height() - diff );
return hint;
}
void TQDockArea::setFixedExtent( int d, TQDockWindow *dw )
{
TQPtrList<TQDockWindow> lst;
TQDockWindow *w;
for ( w = dockWindows->first(); w; w = dockWindows->next() ) {
if ( w->isHidden() )
continue;
if ( orientation() == Horizontal ) {
if ( dw->y() != w->y() )
continue;
} else {
if ( dw->x() != w->x() )
continue;
}
if ( orientation() == Horizontal )
d = TQMAX( d, w->minimumHeight() );
else
d = TQMAX( d, w->minimumWidth() );
if ( w->isResizeEnabled() )
lst.append( w );
}
for ( w = lst.first(); w; w = lst.next() ) {
if ( orientation() == Horizontal )
w->setFixedExtentHeight( d );
else
w->setFixedExtentWidth( d );
}
}
bool TQDockArea::isLastDockWindow( TQDockWindow *dw )
{
int i = dockWindows->find( dw );
if ( i == -1 || i >= (int)dockWindows->count() - 1 )
return TRUE;
TQDockWindow *w = 0;
if ( ( w = dockWindows->at( ++i ) ) ) {
if ( orientation() == Horizontal && dw->y() < w->y() )
return TRUE;
if ( orientation() == Vertical && dw->x() < w->x() )
return TRUE;
} else {
return TRUE;
}
return FALSE;
}
#ifndef QT_NO_TEXTSTREAM
/*!
\relates TQDockArea
Writes the layout of the dock windows in dock area \a dockArea to
the text stream \a ts.
\sa operator>>()
*/
TQTextStream &operator<<( TQTextStream &ts, const TQDockArea &dockArea )
{
TQString str;
TQPtrList<TQDockWindow> l = dockArea.dockWindowList();
for ( TQDockWindow *dw = l.first(); dw; dw = l.next() )
str += "[" + TQString( dw->caption() ) + "," + TQString::number( (int)dw->offset() ) +
"," + TQString::number( (int)dw->newLine() ) + "," + TQString::number( dw->fixedExtent().width() ) +
"," + TQString::number( dw->fixedExtent().height() ) + "," + TQString::number( (int)!dw->isHidden() ) + "]";
ts << str << endl;
return ts;
}
/*!
\relates TQDockArea
Reads the layout description of the dock windows in dock area \a
dockArea from the text stream \a ts and restores it. The layout
description must have been previously written by the operator<<()
function.
\sa operator<<()
*/
TQTextStream &operator>>( TQTextStream &ts, TQDockArea &dockArea )
{
TQString s = ts.readLine();
TQString name, offset, newLine, width, height, visible;
enum State { Pre, Name, Offset, NewLine, Width, Height, Visible, Post };
int state = Pre;
TQChar c;
TQPtrList<TQDockWindow> l = dockArea.dockWindowList();
for ( int i = 0; i < (int)s.length(); ++i ) {
c = s[ i ];
if ( state == Pre && c == '[' ) {
state++;
continue;
}
if ( c == ',' &&
( state == Name || state == Offset || state == NewLine || state == Width || state == Height ) ) {
state++;
continue;
}
if ( state == Visible && c == ']' ) {
for ( TQDockWindow *dw = l.first(); dw; dw = l.next() ) {
if ( TQString( dw->caption() ) == name ) {
dw->setNewLine( (bool)newLine.toInt() );
dw->setOffset( offset.toInt() );
dw->setFixedExtentWidth( width.toInt() );
dw->setFixedExtentHeight( height.toInt() );
if ( !(bool)visible.toInt() )
dw->hide();
else
dw->show();
break;
}
}
name = offset = newLine = width = height = visible = "";
state = Pre;
continue;
}
if ( state == Name )
name += c;
else if ( state == Offset )
offset += c;
else if ( state == NewLine )
newLine += c;
else if ( state == Width )
width += c;
else if ( state == Height )
height += c;
else if ( state == Visible )
visible += c;
}
dockArea.TQWidget::layout()->invalidate();
dockArea.TQWidget::layout()->activate();
return ts;
}
#endif
#endif //QT_NO_MAINWINDOW
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