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koffice/lib/kofficecore/KoContainerHandler.cpp

396 lines
13 KiB

/* This file is part of the KDE project
Copyright (C) 1998, 1999, 2000 Torben Weis <weis@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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 "KoContainerHandler.h"
#include <KoView.h>
#include <math.h>
#include <kcursor.h>
#include <kdebug.h>
KoEventHandler::KoEventHandler( TQObject* target )
{
m_target = target;
m_target->installEventFilter( this );
}
KoEventHandler::~KoEventHandler()
{
}
TQObject* KoEventHandler::target()
{
return m_target;
}
// ------------------------------------------------------
class KoPartResizeHandlerPrivate {
public:
KoPartResizeHandlerPrivate( const TQWMatrix& matrix, KoView *view, KoChild* child,
KoChild::Gadget gadget, const TQPoint& point ) :
m_gadget(gadget), m_view(view), m_child(child), m_parentMatrix(matrix) {
m_geometryStart = child->geometry();
m_matrix = child->matrix() * matrix;
m_invertParentMatrix = matrix.invert();
bool ok = true;
m_invert = m_matrix.invert( &ok );
Q_ASSERT( ok );
m_mouseStart = m_invert.map( m_invertParentMatrix.map( point ) );
}
~KoPartResizeHandlerPrivate() {}
KoChild::Gadget m_gadget;
TQPoint m_mouseStart;
TQRect m_geometryStart;
KoView* m_view;
KoChild* m_child;
TQWMatrix m_invert;
TQWMatrix m_matrix;
TQWMatrix m_parentMatrix;
TQWMatrix m_invertParentMatrix;
};
KoPartResizeHandler::KoPartResizeHandler( TQWidget* widget, const TQWMatrix& matrix, KoView* view, KoChild* child,
KoChild::Gadget gadget, const TQPoint& point )
: KoEventHandler( TQT_TQOBJECT(widget) )
{
child->lock();
d=new KoPartResizeHandlerPrivate(matrix, view, child, gadget, point);
}
KoPartResizeHandler::~KoPartResizeHandler()
{
d->m_child->unlock();
delete d;
d=0L;
}
void KoPartResizeHandler::repaint(TQRegion &rgn)
{
rgn = rgn.unite( d->m_child->frameRegion( d->m_parentMatrix, true ) );
// rgn.translate(- d->m_view->canvasXOffset(), - d->m_view->canvasYOffset());
((TQWidget*)target())->repaint( rgn );
}
bool KoPartResizeHandler::eventFilter( TQObject*, TQEvent* ev )
{
if ( ev->type() == TQEvent::MouseButtonRelease )
{
delete this;
return true;
}
else if ( ev->type() == TQEvent::MouseMove )
{
TQMouseEvent* e = (TQMouseEvent*)ev;
TQPoint p = d->m_invert.map( d->m_invertParentMatrix.map( e->pos() /*+ TQPoint(d->m_view->canvasXOffset(), d->m_view->canvasYOffset()) */ ) );
TQRegion rgn( d->m_child->frameRegion( d->m_parentMatrix, true ) );
double x1_x, x1_y, x2_x, x2_y;
d->m_matrix.map( double( p.x() ), 0.0, &x1_x, &x1_y );
d->m_matrix.map( double( d->m_mouseStart.x() ), 0.0, &x2_x, &x2_y );
double y1_x, y1_y, y2_x, y2_y;
d->m_matrix.map( 0.0, double( p.y() ), &y1_x, &y1_y );
d->m_matrix.map( 0.0, double( d->m_mouseStart.y() ), &y2_x, &y2_y );
double dx = x2_x - x1_x;
double dy = x2_y - x1_y;
int x = int( sqrt( dx * dx + dy * dy ) * ( d->m_mouseStart.x() < p.x() ? 1.0 : -1.0 ) );
dx = y2_x - y1_x;
dy = y2_y - y1_y;
int y = int( sqrt( dx * dx + dy * dy ) * ( d->m_mouseStart.y() < p.y() ? 1.0 : -1.0 ) );
switch( d->m_gadget )
{
case KoChild::TopLeft:
{
x = TQMIN( d->m_geometryStart.width() - 1, x );
y = TQMIN( d->m_geometryStart.height() - 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x() + x, d->m_geometryStart.y() + y,
d->m_geometryStart.width() - x, d->m_geometryStart.height() - y ) );
repaint(rgn);
}
break;
case KoChild::TopMid:
{
y = TQMIN( d->m_geometryStart.height() - 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x(), d->m_geometryStart.y() + y,
d->m_geometryStart.width(), d->m_geometryStart.height() - y ) );
repaint(rgn);
}
break;
case KoChild::TopRight:
{
x = TQMAX( -d->m_geometryStart.width() + 1, x );
y = TQMIN( d->m_geometryStart.height() - 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x(), d->m_geometryStart.y() + y,
d->m_geometryStart.width() + x, d->m_geometryStart.height() - y ) );
repaint(rgn);
}
break;
case KoChild::MidLeft:
{
x = TQMIN( d->m_geometryStart.width() - 1, x );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x() + x, d->m_geometryStart.y(),
d->m_geometryStart.width() - x, d->m_geometryStart.height() ) );
repaint(rgn);
}
break;
case KoChild::MidRight:
{
x = TQMAX( -d->m_geometryStart.width() + 1, x );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x(), d->m_geometryStart.y(),
d->m_geometryStart.width() + x, d->m_geometryStart.height() ) );
repaint(rgn);
}
break;
case KoChild::BottomLeft:
{
x = TQMIN( d->m_geometryStart.width() - 1, x );
y = TQMAX( -d->m_geometryStart.height() + 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x() + x, d->m_geometryStart.y(),
d->m_geometryStart.width() - x, d->m_geometryStart.height() + y ) );
repaint(rgn);
}
break;
case KoChild::BottomMid:
{
y = TQMAX( -d->m_geometryStart.height() + 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x(), d->m_geometryStart.y(),
d->m_geometryStart.width(), d->m_geometryStart.height() + y ) );
repaint(rgn);
}
break;
case KoChild::BottomRight:
{
x = TQMAX( -d->m_geometryStart.width() + 1, x );
y = TQMAX( -d->m_geometryStart.height() + 1, y );
d->m_child->setGeometry( TQRect( d->m_geometryStart.x(), d->m_geometryStart.y(),
d->m_geometryStart.width() + x, d->m_geometryStart.height() + y ) );
repaint(rgn);
}
break;
default:
Q_ASSERT( 0 );
}
return true;
}
return false;
}
// --------------------------------------------------------------
class KoPartMoveHandlerPrivate {
public:
KoPartMoveHandlerPrivate( const TQWMatrix& matrix, KoView* view, KoChild* child,
const TQPoint& point) : m_view(view), m_dragChild(child),
m_parentMatrix(matrix) {
m_invertParentMatrix = matrix.invert();
m_mouseDragStart = m_invertParentMatrix.map( point );
m_geometryDragStart = m_dragChild->geometry();
m_rotationDragStart = m_dragChild->rotationPoint();
}
~KoPartMoveHandlerPrivate() {}
KoView* m_view;
KoChild* m_dragChild;
TQPoint m_mouseDragStart;
TQRect m_geometryDragStart;
TQPoint m_rotationDragStart;
TQWMatrix m_invertParentMatrix;
TQWMatrix m_parentMatrix;
};
KoPartMoveHandler::KoPartMoveHandler( TQWidget* widget, const TQWMatrix& matrix, KoView* view, KoChild* child,
const TQPoint& point )
: KoEventHandler( TQT_TQOBJECT(widget) )
{
child->lock();
d=new KoPartMoveHandlerPrivate(matrix, view, child, point);
}
KoPartMoveHandler::~KoPartMoveHandler()
{
d->m_dragChild->unlock();
delete d;
d=0L;
}
bool KoPartMoveHandler::eventFilter( TQObject*, TQEvent* ev )
{
if ( ev->type() == TQEvent::MouseButtonRelease )
{
delete this;
return true;
}
else if ( ev->type() == TQEvent::MouseMove )
{
TQMouseEvent* e = (TQMouseEvent*)ev;
TQRegion bound = d->m_dragChild->frameRegion( d->m_parentMatrix, true );
TQPoint pos = d->m_invertParentMatrix.map( e->pos() /* + TQPoint(d->m_view->canvasXOffset(), d->m_view->canvasYOffset()) */ );
d->m_dragChild->setGeometry( TQRect( d->m_geometryDragStart.x() + pos.x() - d->m_mouseDragStart.x(),
d->m_geometryDragStart.y() + pos.y() - d->m_mouseDragStart.y(),
d->m_geometryDragStart.width(), d->m_geometryDragStart.height() ) );
d->m_dragChild->setRotationPoint( TQPoint( d->m_rotationDragStart.x() + pos.x() - d->m_mouseDragStart.x(),
d->m_rotationDragStart.y() + pos.y() - d->m_mouseDragStart.y() ) );
bound = bound.unite( d->m_dragChild->frameRegion( d->m_parentMatrix, false ) );
// bound.translate(- d->m_view->canvasXOffset(), - d->m_view->canvasYOffset());
((TQWidget*)target())->repaint( bound );
return true;
}
return false;
}
// -------------------------------------------------------
KoContainerHandler::KoContainerHandler( KoView* view, TQWidget* widget )
: KoEventHandler( TQT_TQOBJECT(widget) )
{
m_view = view;
}
KoContainerHandler::~KoContainerHandler()
{
}
bool KoContainerHandler::eventFilter( TQObject*, TQEvent* ev )
{
if ( ev->type() == TQEvent::KeyPress )
{
TQKeyEvent* keyEvent=(TQKeyEvent*)ev;
KoChild* child=m_view->selectedChild();
if (child != 0)
{
if (keyEvent->key()==TQt::Key_Delete)
emit deleteChild(child);
}
}
if ( ev->type() == TQEvent::MouseButtonPress )
{
KoChild::Gadget gadget;
TQPoint pos;
TQMouseEvent *e=TQT_TQMOUSEEVENT(ev);
KoChild *ch=child(gadget, pos, e);
if ( e->button() == TQt::RightButton && gadget != KoChild::NoGadget )
{
emit popupMenu( ch, e->globalPos() );
return true;
}
else if ( e->button() == TQt::LeftButton && gadget == KoChild::Move )
{
(void)new KoPartMoveHandler( TQT_TQWIDGET(target()), m_view->matrix(), m_view, ch, pos );
return true;
}
else if ( e->button() == TQt::LeftButton && gadget != KoChild::NoGadget )
{
(void)new KoPartResizeHandler( TQT_TQWIDGET(target()), m_view->matrix(), m_view, ch, gadget, pos );
return true;
}
return false;
}
else if ( ev->type() == TQEvent::MouseMove )
{
TQWidget *targetWidget = TQT_TQWIDGET( target() );
KoChild::Gadget gadget;
TQPoint pos;
TQMouseEvent *e=TQT_TQMOUSEEVENT(ev);
child(gadget, pos, e);
bool retval = true;
if ( gadget == KoChild::NoGadget )
retval = false;
if ( gadget == KoChild::TopLeft || gadget == KoChild::BottomRight )
targetWidget->setCursor( sizeFDiagCursor );
else if ( gadget == KoChild::TopRight || gadget == KoChild::BottomLeft )
targetWidget->setCursor( sizeBDiagCursor );
else if ( gadget == KoChild::TopMid || gadget == KoChild::BottomMid )
targetWidget->setCursor( sizeVerCursor );
else if ( gadget == KoChild::MidLeft || gadget == KoChild::MidRight )
targetWidget->setCursor( sizeHorCursor );
else if ( gadget == KoChild::Move )
targetWidget->setCursor( KCursor::handCursor() );
else
{
// targetWidget->setCursor( arrowCursor );
return false;
}
return retval;
}
return false;
}
KoChild *KoContainerHandler::child(KoChild::Gadget &gadget, TQPoint &pos, const TQMouseEvent *ev) {
pos = ev->pos(); //+ TQPoint(m_view->canvasXOffset(), m_view->canvasYOffset());
pos = m_view->reverseViewTransformations( pos );
KoChild *child = 0;
KoDocumentChild* docChild = m_view->selectedChild();
gadget = KoChild::NoGadget;
if ( docChild )
{
KoViewChild *viewChild = m_view->child( docChild->document() );
if ( viewChild )
child = viewChild;
else
child = docChild;
gadget = child->gadgetHitTest( pos );
}
if ( gadget == KoChild::NoGadget )
{
docChild = m_view->activeChild();
if ( docChild )
{
KoViewChild *viewChild = m_view->child( docChild->document() );
if ( viewChild )
child = viewChild;
else
child = docChild;
gadget = child->gadgetHitTest( pos );
}
}
return child;
}
#include "KoContainerHandler.moc"