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kdelibs/kde3support/kdeui/k3dockwidget_private.cpp
Ivailo Monev 814163a8dc initial import
2014-11-13 01:04:59 +02:00

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/* This file is part of the KDE libraries
Copyright (C) 2000 Max Judin <novaprint@mtu-net.ru>
Copyright (C) 2002,2003 Joseph Wenninger <jowenn@kde.org>
Copyright (C) 2005 Dominik Haumann <dhdev@gmx.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "k3dockwidget_private.h"
#include "k3dockwidget.h"
#include "k3dockwidget_p.h"
#include <QtGui/QPainter>
#include <QtGui/QCursor>
#include <kdebug.h>
#include <QtCore/QTimer>
#include <QtGui/QApplication>
#include <QResizeEvent>
#include <math.h> // need ceil
K3DockSplitter::K3DockSplitter(QWidget *parent, const char *name, Qt::Orientation orient, int pos)
: QWidget(parent, name)
{
m_dontRecalc=false;
divider = 0L;
child0 = 0L;
child1 = 0L;
fixedWidth0=-1;
fixedWidth1=-1;
fixedHeight0=-1;
fixedHeight1=-1;
m_orientation = orient;
mOpaqueResize = false;
mKeepSize = false;
setSeparatorPosInPercent( pos );
initialised = false;
}
void K3DockSplitter::activate(QWidget *c0, QWidget *c1)
{
if ( c0 ) child0 = c0;
if ( c1 ) child1 = c1;
setupMinMaxSize();
delete divider;
divider = new QFrame(this, "pannerdivider");
divider->setFrameStyle(QFrame::Panel | QFrame::Raised);
divider->setLineWidth(1);
divider->raise();
if (m_orientation == Qt::Horizontal)
divider->setCursor(QCursor(Qt::SizeVerCursor));
else
divider->setCursor(QCursor(Qt::SizeHorCursor));
divider->installEventFilter(this);
initialised= true;
updateName();
divider->show();
// without this resize event, things will not work. why exactly? :(
resizeEvent(0);
K3DockWidget* dw0 = (K3DockWidget*) child0;
K3DockWidget* dw1 = (K3DockWidget*) child1;
// if fixed size is set, restore first, to restore xpos correctly
if( fixedWidth0 != -1 || fixedHeight0 != -1 ) restoreFromForcedFixedSize( dw0 );
if( fixedWidth1 != -1 || fixedHeight1 != -1 ) restoreFromForcedFixedSize( dw1 );
// now force fixed sizes, if they are set.
if( dw0->forcedFixedWidth() != -1 ) {
setForcedFixedWidth( dw0, dw0->forcedFixedWidth() );
}
else if( dw1->forcedFixedWidth() != -1 ) {
setForcedFixedWidth( dw1, dw1->forcedFixedWidth() );
}
if( dw0->forcedFixedHeight() != -1 ) {
setForcedFixedHeight (dw0, dw0->forcedFixedHeight() );
}
else if( dw1->forcedFixedHeight() != -1 ) {
setForcedFixedHeight( dw1, dw1->forcedFixedHeight() );
}
}
/*
void K3DockSplitter::delayedResize()
{
kDebug(282)<<"*********************** DELAYED RESIZE !!!!!!!!!!!!!!!";
resizeEvent(0);
}*/
void K3DockSplitter::setForcedFixedWidth(K3DockWidget *dw,int w)
{
if (dw==child0)
{
if (fixedWidth0==-1) savedXPos=xpos;
if (w==fixedWidth0) return;
fixedWidth0=w;
setSeparatorPos(w*factor/width(),true);
// kDebug(282)<<"Set forced fixed width for widget 0 :"<<w;
}
else
{
if (fixedWidth1==-1) savedXPos=xpos;
if (w==fixedWidth1) return;
fixedWidth1=w;
setSeparatorPos((width()-w)*factor/width(),true);
// kDebug(282)<<"Set forced fixed width for widget 1 :"<<w;
}
setupMinMaxSize();
if (divider) divider->hide();
}
void K3DockSplitter::setForcedFixedHeight(K3DockWidget *dw,int h)
{
if (dw==child0)
{
if (fixedHeight0==-1) savedXPos=xpos;
if (h==fixedHeight0) return;
fixedHeight0=h;
setSeparatorPos(h*factor/height(),true);
// // kDebug(282)<<"Set forced fixed width for widget 0 :"<<h;
}
else
{
if (fixedHeight1==-1) savedXPos=xpos;
if (h==fixedHeight1) return;
fixedHeight1=h;
setSeparatorPos((height()-h)*factor/height(),true);
// kDebug(282)<<"Set forced fixed height for widget 1 :"<<h;
}
setupMinMaxSize();
if (divider) divider->hide();
}
void K3DockSplitter::restoreFromForcedFixedSize(K3DockWidget *dw)
{
if (divider) divider->show();
if (dw==child0)
{
fixedWidth0=-1;
fixedHeight0=-1;
setSeparatorPos(savedXPos,true);
}
else
{
fixedWidth1=-1;
fixedHeight1=-1;
setSeparatorPos(savedXPos,true);
}
}
void K3DockSplitter::setupMinMaxSize()
{
// Set the minimum and maximum sizes for the K3DockSplitter (this)
int minx, maxx, miny, maxy;
if (m_orientation == Qt::Horizontal) {
miny = child0->minimumHeight() + child1->minimumHeight() + 4;
maxy = child0->maximumHeight() + child1->maximumHeight() + 4;
minx = (child0->minimumWidth() > child1->minimumWidth()) ? child0->minimumWidth() : child1->minimumWidth();
maxx = (child0->maximumWidth() > child1->maximumWidth()) ? child0->maximumWidth() : child1->maximumWidth();
if (miny < 4) miny = 4;
if (maxy > 32000) maxy = 32000;
if (minx < 2) minx = 2;
if (maxx > 32000) maxx = 32000;
}
else
{
minx = child0->minimumWidth() + child1->minimumWidth() + 4;
maxx = child0->maximumWidth() + child1->maximumWidth() + 4;
miny = (child0->minimumHeight() > child1->minimumHeight()) ? child0->minimumHeight() : child1->minimumHeight();
maxy = (child0->maximumHeight() > child1->maximumHeight()) ? child0->maximumHeight() : child1->maximumHeight();
if (miny < 2) miny = 2;
if (maxy > 32000) maxy = 32000;
if (minx < 4) minx = 4;
if (maxx > 32000) maxx = 32000;
}
setMinimumSize(minx, miny);
setMaximumSize(maxx, maxy);
}
void K3DockSplitter::deactivate()
{
delete divider;
divider = 0L;
initialised= false;
}
int K3DockSplitter::separatorPosInPercent()
{
return xpos / (factor/100);
}
void K3DockSplitter::setSeparatorPosInPercent(int percent)
{
xpos = percent * (factor/100);
}
void K3DockSplitter::setSeparatorPos(int pos, bool do_resize)
{
xpos = pos;
if (do_resize)
resizeEvent(0);
}
void K3DockSplitter::setSeparatorPosX(int pos, bool do_resize)
{
savedXPos = pos;
setSeparatorPos( pos, do_resize );
}
int K3DockSplitter::separatorPos() const
{
return xpos;
}
void K3DockSplitter::resizeEvent(QResizeEvent *ev)
{
//
// As already stated in the .h file we always have to differentiate
// between 6 modes.
// If we can cast child0->getWidget() or child1.getWidget() to
// K3DockContainer* we *do* have a dockwidget around. For dockwidgets
// we have to take special care in the resizing routines, for example
// if mKeepSize is true and the dockcontainer is on the bottom or right,
// we always have to move the xpos splitter position. If there are no
// dockcontainers around, resizing is handeled like if child0 would
// be a dockcontainer.
//
// kDebug(282)<<"ResizeEvent :"<< ((initialised) ? "initialised":"not initialised")<<", "<< ((ev) ? "real event":"")<<", "<<(isVisible() ?"visible":"");
if (initialised) {
K3DockContainer *dc = 0L;
K3DockWidget *c0 = (K3DockWidget*)child0;
K3DockWidget *c1 = (K3DockWidget*)child1;
bool stdHandling=false; // true: if closed or nonoverlap mode. false: overlap mode
//
// Check whether this is a real resize event or a pseudo resize event
// Real resize events occur if the width() or height() changes. ev != 0L.
// Pseudo resize events occur if the dockwidget mode changes (overlaped,
// sticky or closed). ev == 0L.
//
if (ev && isVisible() && divider->isVisible()) {
// real resize event.
// kDebug(282)<<"mKeepSize : "<< ((m_orientation == Horizontal) ? "Horizontal":"Vertical");
if (mKeepSize) {
// keep the splitter on a fixed position. This may be a bit inaccurate, because
// xpos saves a proportional value, which means there might occur rounding errors.
// However, this works surprising well!
if (m_orientation == Qt::Horizontal) {
if (ev->oldSize().height() != ev->size().height()) {
if( (c1->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c1->getWidget()))) {
// dockwidget is on the bottom. move xpos so that the size from child1 stays
xpos = (int)ceil(((double)factor) * checkValue(height() - child1->height() - 4) / height());
} else {
// xpos should not change, the docking is on the top
// checkValue is *fuzzy* here, it leads to ugly rounding bugs
// In truth, it is not needed, because it is called when calculating the "position".
xpos = qRound(((double)xpos) * ev->oldSize().height() / height());
}
}
} else {
if (ev->oldSize().width() != width()) {
if( (c1->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c1->getWidget()))) {
xpos = (int)ceil(((double)factor) * checkValue(width() - child1->width() - 4) / width());
} else {
// xpos should not change
// checkValue is *fuzzy* here, it leads to ugly rounding bugs
xpos = qRound(((double)xpos) * ev->oldSize().width() / width());
}
}
}
} else {
// dockwidget size proportional!
// Which means, xpos is always right (ratio value). Do nothing! :)
}
}
else
{
//
// Maybe a multitabbartab was clicked, so force an update of the fixed
// values.
//
if ( isVisible()) {
if (m_orientation == Qt::Horizontal) {
if (fixedHeight0!=-1)
xpos = checkValue(fixedHeight0) * factor / height();
else if (fixedHeight1!=-1)
xpos = checkValue(height()-fixedHeight1) * factor / height();
}
else
{
if (fixedWidth0!=-1)
xpos = checkValue(fixedWidth0) * factor / width();
else if (fixedWidth1!=-1)
xpos = checkValue(width()-fixedWidth1) * factor / width();
}
}
// else kDebug(282)<<"Something else happened";
}
/*
// --- debugging information ---
kDebug(282) << "isVisible() is : " << isVisible();
kDebug(282) << "Orientation : " << (m_orientation==Horizontal?"Horizontal":"Vertical")
<< endl;
kDebug(282) << "Splitter visibility : " << divider->isVisible();;
kDebug(282) << "Splitter procentual pos: " << xpos;
if (c0->getWidget()) {
dc=dynamic_cast<K3DockContainer*>(c0->getWidget());
kDebug(282) << "Child 0 K3DockContainer?: " << dc;
}
if (c1->getWidget()) {
dc=dynamic_cast<K3DockContainer*>(c1->getWidget());
kDebug(282) << "Child 1 K3DockContainer?: " << dc;
}
kDebug(282) << "Child0 : " << child0;
kDebug(282) << "child1 : " << child1;
*/
//
// handle overlapped widgets only.
//
if( ( (m_orientation==Qt::Vertical) &&((fixedWidth0==-1) && (fixedWidth1==-1)) ) ||
( (m_orientation==Qt::Horizontal) &&((fixedHeight0==-1) && (fixedHeight1==-1)) ) ) {
if ((c0->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c0->getWidget()))
&& (dc->isOverlapMode())) {
// child0 is a K3DockContainer
int position;
child0->show();
child0->raise();
divider->raise();
if (m_orientation == Qt::Horizontal) {
position = checkValueOverlapped( height() * xpos / factor, child0 );
child0->setGeometry(0, 0, width(), position);
child1->setGeometry(0, dc->m_nonOverlapSize, width(), height()-dc->m_nonOverlapSize);
divider->setGeometry(0, position, width(), 4);
} else {
position = checkValueOverlapped( width() * xpos / factor, child0 );
child0->setGeometry(0, 0, position, height());
child1->setGeometry(dc->m_nonOverlapSize, 0, width()-dc->m_nonOverlapSize, height());
divider->setGeometry(position, 0, 4, height());
}
} else {
if ((c1->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c1->getWidget()))
&& (dc->isOverlapMode())) {
// child1 is a K3DockContainer
int position;
child1->show();
child1->raise();
divider->raise();
if (m_orientation == Qt::Horizontal) {
position = checkValueOverlapped( height() * xpos / factor, child1 );
child0->setGeometry(0, 0, width(), height()-dc->m_nonOverlapSize);
child1->setGeometry(0, position+4, width(), height()-position-4);
divider->setGeometry(0, position, width(), 4);
} else {
position = checkValueOverlapped( width() * xpos / factor, child1 );
child0->setGeometry(0, 0, width()-dc->m_nonOverlapSize, height());
child1->setGeometry(position+4, 0, width()-position-4, height());
divider->setGeometry(position, 0, 4, height());
}
}
else // no K3DockContainer available, this means the mode cannot be overlapped
stdHandling=true;
}
}
else // no K3DockContainer available
stdHandling=true;
//
// stdHandling == true means either sticky mode (=nonoverlap mode) or
// closed mode. In both modes the widgets do *not* overlap, so we know
// the child0 and child1 adjoin.
//
if (stdHandling) {
int position = checkValue( (m_orientation == Qt::Vertical ? width() : height()) * xpos / factor );
int diff = 0;
if (m_orientation == Qt::Horizontal) {
if ((c1->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c1->getWidget()))) {
// bottom is dockcontainer
if( divider->isVisible() ) {
child0->setGeometry(0, 0, width(), position);
child1->setGeometry(0, position+4, width(), height()-position-4);
} else {
child0->setGeometry(0, 0, width(), height()-dc->m_nonOverlapSize);
child1->setGeometry(0, height()-dc->m_nonOverlapSize, width(), height());
}
} else {
if( divider->isVisible() ) diff = 4;
child0->setGeometry(0, 0, width(), position);
child1->setGeometry(0, position+diff, width(), height()-position-diff);
}
divider->setGeometry(0, position, width(), 4);
} else {
if ((c1->getWidget()) && (dc=dynamic_cast<K3DockContainer*>(c1->getWidget()))) {
// right is dockcontainer
if( divider->isVisible() ) {
child0->setGeometry(0, 0, position, height());
child1->setGeometry(position+4, 0, width()-position-4, height());
} else {
child0->setGeometry(0, 0, width()-dc->m_nonOverlapSize, height());
child1->setGeometry(width()-dc->m_nonOverlapSize, 0, width(), height());
}
} else {
if( divider->isVisible() ) diff = 4;
child0->setGeometry(0, 0, position, height());
child1->setGeometry(position+diff, 0, width()-position-diff, height());
}
divider->setGeometry(position, 0, 4, height());
}
}
}
}
int K3DockSplitter::checkValueOverlapped(int position, QWidget *overlappingWidget) const
{
if (initialised) {
if (m_orientation == Qt::Vertical) {
if (child0==overlappingWidget) {
if (position < child0->minimumWidth() || position > width())
position = child0->minimumWidth();
} else {
if (position > (width()-child1->minimumWidth()-4) || position < 0)
position = width()-child1->minimumWidth()-4;
}
} else {// orientation == Horizontal
if (child0==overlappingWidget) {
if (position < (child0->minimumHeight()) || position > height())
position = child0->minimumHeight();
} else {
if (position>(height()-child1->minimumHeight()-4) || position < 0)
position = height()-child1->minimumHeight()-4;
}
}
}
return position;
}
int K3DockSplitter::checkValue( int position ) const
{
if (initialised) {
if (m_orientation == Qt::Vertical) {
if (position < child0->minimumWidth())
position = child0->minimumWidth();
if ((width()-4-position) < (child1->minimumWidth()))
position = width() - (child1->minimumWidth()) - 4;
} else {
if (position < (child0->minimumHeight()))
position = child0->minimumHeight();
if ((height()-4-position) < child1->minimumHeight())
position = height() - (child1->minimumHeight()) - 4;
}
}
if (position < 0) position = 0;
if ((m_orientation == Qt::Vertical) && (position > width()))
position = width();
if ((m_orientation == Qt::Horizontal) && (position > height()))
position = height();
return position;
}
bool K3DockSplitter::eventFilter(QObject *o, QEvent *e)
{
QMouseEvent *mev;
bool handled = false;
switch (e->type()) {
case QEvent::MouseMove:
mev= (QMouseEvent*)e;
child0->setUpdatesEnabled(mOpaqueResize);
child1->setUpdatesEnabled(mOpaqueResize);
if (m_orientation == Qt::Horizontal) {
if ((fixedHeight0!=-1) || (fixedHeight1!=-1))
{
handled=true; break;
}
if (!mOpaqueResize) {
int position = checkValue( mapFromGlobal(mev->globalPos()).y() );
divider->move( 0, position );
} else {
int tmp_xpos = factor * checkValue( mapFromGlobal(mev->globalPos()).y() ) / height();
if (tmp_xpos != xpos) {
xpos = tmp_xpos;
resizeEvent(0);
divider->repaint();
}
}
} else {
if ((fixedWidth0!=-1) || (fixedWidth1!=-1))
{
handled=true; break;
}
if (!mOpaqueResize) {
int position = checkValue( mapFromGlobal(QCursor::pos()).x() );
divider->move( position, 0 );
} else {
int tmp_xpos = factor * checkValue( mapFromGlobal( mev->globalPos()).x() ) / width();
if (tmp_xpos != xpos) {
xpos = tmp_xpos;
resizeEvent(0);
divider->repaint();
}
}
}
handled= true;
break;
case QEvent::MouseButtonRelease:
child0->setUpdatesEnabled(true);
child1->setUpdatesEnabled(true);
mev= (QMouseEvent*)e;
if (m_orientation == Qt::Horizontal){
if ((fixedHeight0!=-1) || (fixedHeight1!=-1))
{
handled=true; break;
}
xpos = factor* checkValue( mapFromGlobal(mev->globalPos()).y() ) / height();
resizeEvent(0);
divider->repaint();
} else {
if ((fixedWidth0!=-1) || (fixedWidth1!=-1))
{
handled=true; break;
}
xpos = factor* checkValue( mapFromGlobal(mev->globalPos()).x() ) / width();
resizeEvent(0);
divider->repaint();
}
handled= true;
break;
default:
break;
}
return (handled) ? true : QWidget::eventFilter( o, e );
}
bool K3DockSplitter::event( QEvent* e )
{
if ( e->type() == QEvent::LayoutHint ){
// change children min/max size. This is needed, otherwise
// it is possible the divider get's out of bounds.
setupMinMaxSize();
resizeEvent(0);
}
return QWidget::event(e);
}
QWidget* K3DockSplitter::getAnother( QWidget* w ) const
{
return ( w == child0 ) ? child1 : child0;
}
void K3DockSplitter::updateName()
{
if ( !initialised ) return;
QString new_name = QString( child0->name() ) + ',' + child1->name();
parentWidget()->setName( new_name.toLatin1().constData() );
parentWidget()->setWindowTitle( child0->windowTitle() + ',' + child1->windowTitle() );
parentWidget()->repaint( );
((K3DockWidget*)parentWidget())->firstName = child0->name();
((K3DockWidget*)parentWidget())->lastName = child1->name();
((K3DockWidget*)parentWidget())->splitterOrientation = m_orientation;
QWidget* p = parentWidget()->parentWidget();
if ( p && p->inherits("K3DockSplitter" ) )
((K3DockSplitter*)p)->updateName();
}
void K3DockSplitter::setOpaqueResize(bool b)
{
mOpaqueResize = b;
}
bool K3DockSplitter::opaqueResize() const
{
return mOpaqueResize;
}
void K3DockSplitter::setKeepSize(bool b)
{
mKeepSize = b;
}
bool K3DockSplitter::keepSize() const
{
return mKeepSize;
}
/*************************************************************************/
K3DockButton_Private::K3DockButton_Private( QWidget *parent, const char * name )
:QPushButton( parent, name )
{
moveMouse = false;
setFocusPolicy( Qt::NoFocus );
}
K3DockButton_Private::~K3DockButton_Private()
{
}
void K3DockButton_Private::drawButton( QPainter* p )
{
p->fillRect( 0,0, width(), height(), QBrush(QColorGroup(palette()).brush(QPalette::Background)) );
#if 1
// ### TODO: is the centering done automatically or do we need some codelike for KDE3 (see below the #else part)
icon().paint( p, rect() );
#else
p->drawPixmap( (width() - pixmap()->width()) / 2, (height() - pixmap()->height()) / 2, *pixmap() );
#endif
if ( moveMouse && !isDown() ){
p->setPen( Qt::white );
p->drawLine( 0, height() - 1, 0, 0 );
p->drawLine( 0, 0, width() -1 , 0 );
p->setPen( QColorGroup(palette()).dark() );
p->drawLine( width() -1, 0, width() - 1, height() - 1 );
p->drawLine( width() - 1, height() - 1, 0, height() - 1 );
}
if ( isChecked() || isDown() ){
p->setPen( QColorGroup(palette()).dark() );
p->drawLine(0 , height() - 1, 0, 0);
p->drawLine(0, 0, width() -1 , 0);
p->setPen( Qt::white );
p->drawLine(width() - 1, height() - 1, 0, height() - 1);
}
}
void K3DockButton_Private::enterEvent( QEvent * )
{
moveMouse = true;
repaint();
}
void K3DockButton_Private::leaveEvent( QEvent * )
{
moveMouse = false;
repaint();
}
void K3DockButton_Private::paintEvent( QPaintEvent * )
{
QPainter painter( this );
drawButton( &painter );
}
/*************************************************************************/
K3DockWidgetPrivate::K3DockWidgetPrivate()
: QObject()
,index(-1)
,splitPosInPercent(50)
,pendingFocusInEvent(false)
,blockHasUndockedSignal(false)
,pendingDtor(false)
,forcedWidth(-1)
,forcedHeight(-1)
,isContainer(false)
,container(0)
,resizePos(0,0)
,resizing(false)
{
#ifndef NO_KDE2
windowType = NET::Normal;
#endif
_parent = 0L;
transient = false;
}
K3DockWidgetPrivate::~K3DockWidgetPrivate()
{
}
void K3DockWidgetPrivate::slotFocusEmbeddedWidget(QWidget* w)
{
if (w) {
QWidget* embeddedWdg = ((K3DockWidget*)w)->getWidget();
if (embeddedWdg && ((embeddedWdg->focusPolicy() == Qt::ClickFocus) || (embeddedWdg->focusPolicy() == Qt::StrongFocus))) {
embeddedWdg->setFocus();
}
}
}
#ifndef NO_INCLUDE_MOCFILES // for Qt-only projects, because tmake doesn't take this name
#include "k3dockwidget_private.moc"
#endif
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