Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdewebdev@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 384 insertions, 0 deletions

diff --git a/kommander/editor/sizehandle.cpp b/kommander/editor/sizehandle.cpp
new file mode 100644
index 00000000..937d33bc
--- /dev/null
+++ b/kommander/editor/sizehandle.cpp
@@ -0,0 +1,384 @@
+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qt Designer.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#include <qvariant.h>  // HP-UX compiler needs this here
+
+#include "sizehandle.h"
+#include "formwindow.h"
+#include "widgetfactory.h"
+
+#include <qwidget.h>
+#include <qapplication.h>
+#include <qlabel.h>
+
+#include <klocale.h>
+
+SizeHandle::SizeHandle( FormWindow *parent, Direction d, WidgetSelection *s )
+    : QWidget( parent )
+{
+    active = true;
+    setBackgroundMode( active ? PaletteText : PaletteDark );
+    setFixedSize( 6, 6 );
+    widget = 0;
+    dir =d ;
+    setMouseTracking( false );
+    formWindow = parent;
+    sel = s;
+    updateCursor();
+}
+
+void SizeHandle::updateCursor()
+{
+    if ( !active ) {
+	setCursor( arrowCursor );
+	return;
+    }
+
+    switch ( dir ) {
+    case LeftTop:
+	setCursor( sizeFDiagCursor );
+	break;
+    case Top:
+	setCursor( sizeVerCursor );
+	break;
+    case RightTop:
+	setCursor( sizeBDiagCursor );
+	break;
+    case Right:
+	setCursor( sizeHorCursor );
+	break;
+    case RightBottom:
+	setCursor( sizeFDiagCursor );
+	break;
+    case Bottom:
+	setCursor( sizeVerCursor );
+	break;
+    case LeftBottom:
+	setCursor( sizeBDiagCursor );
+	break;
+    case Left:
+	setCursor( sizeHorCursor );
+	break;
+    }
+}
+
+void SizeHandle::setActive( bool a )
+{
+    active = a;
+    setBackgroundMode( active ? PaletteText : PaletteDark );
+    updateCursor();
+}
+
+void SizeHandle::setWidget( QWidget *w )
+{
+    widget = w;
+}
+
+void SizeHandle::paintEvent( QPaintEvent * )
+{
+    if ( ( (FormWindow*)parentWidget() )->currentWidget() != widget )
+	return;
+    QPainter p( this );
+    p.setPen( blue );
+    p.drawRect( 0, 0, width(), height() );
+}
+
+void SizeHandle::mousePressEvent( QMouseEvent *e )
+{
+    if ( !widget || e->button() != LeftButton || !active )
+	return;
+    oldPressPos = e->pos();
+    geom = origGeom = QRect( widget->pos(), widget->size() );
+}
+
+void SizeHandle::mouseMoveEvent( QMouseEvent *e )
+{
+    if ( !widget || ( e->state() & LeftButton ) != LeftButton || !active )
+	return;
+    QPoint rp = mapFromGlobal( e->globalPos() );
+    QPoint d = oldPressPos - rp;
+    oldPressPos = rp;
+    QPoint checkPos = widget->parentWidget()->mapFromGlobal( e->globalPos() );
+    QRect pr = widget->parentWidget()->rect();
+
+    // ##### move code around a bit to reduce duplicated code here
+    switch ( dir ) {
+    case LeftTop: {
+	if ( checkPos.x() > pr.width() - 2 * width() || checkPos.y() > pr.height() - 2 * height() )
+	    return;
+	int w = geom.width() + d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	int h = geom.height() + d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	int dx = widget->width() - w;
+	int dy = widget->height() - h;
+	trySetGeometry( widget, widget->x() + dx, widget->y() + dy, w, h );
+    } break;
+    case Top: {
+	if ( checkPos.y() > pr.height() - 2 * height() )
+	    return;
+	int h = geom.height() + d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	int dy = widget->height() - h;
+	trySetGeometry( widget, widget->x(), widget->y() + dy, widget->width(), h );
+    } break;
+    case RightTop: {
+	if ( checkPos.x() < 2 * width() || checkPos.y() > pr.height() - 2 * height() )
+	    return;
+	int h = geom.height() + d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	int dy = widget->height() - h;
+	int w = geom.width() - d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	trySetGeometry( widget, widget->x(), widget->y() + dy, w, h );
+    } break;
+    case Right: {
+	if ( checkPos.x() < 2 * width() )
+	    return;
+	int w = geom.width() - d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	tryResize( widget, w, widget->height() );
+    } break;
+    case RightBottom: {
+	if ( checkPos.x() < 2 * width() || checkPos.y() < 2 * height() )
+	    return;
+	int w = geom.width() - d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	int h = geom.height() - d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	tryResize( widget, w, h );
+    } break;
+    case Bottom: {
+	if ( checkPos.y() < 2 * height() )
+	    return;
+	int h = geom.height() - d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	tryResize( widget, widget->width(), h );
+    } break;
+    case LeftBottom: {
+	if ( checkPos.x() > pr.width() - 2 * width() || checkPos.y() < 2 * height() )
+	    return;
+	int w = geom.width() + d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	int dx = widget->width() - w;
+	int h = geom.height() - d.y();
+	geom.setHeight( h );
+	h = ( h / formWindow->grid().y() ) * formWindow->grid().y();
+	trySetGeometry( widget, widget->x() + dx, widget->y(), w, h );
+    } break;
+    case Left: {
+	if ( checkPos.x() > pr.width() - 2 * width() )
+	    return;
+	int w = geom.width() + d.x();
+	geom.setWidth( w );
+	w = ( w / formWindow->grid().x() ) * formWindow->grid().x();
+	int dx = widget->width() - w;
+	trySetGeometry( widget, widget->x() + dx, widget->y(), w, widget->height() );
+    } break;
+    }
+
+    QPoint p = pos();
+    sel->updateGeometry();
+    oldPressPos += ( p - pos() );
+
+    formWindow->sizePreview()->setText( QString( "%1/%2" ).arg( widget->width() ).arg( widget->height() ) );
+    formWindow->sizePreview()->adjustSize();
+    QRect lg( formWindow->mapFromGlobal( e->globalPos() ) + QPoint( 16, 16 ),
+	      formWindow->sizePreview()->size() );
+    formWindow->checkPreviewGeometry( lg );
+    formWindow->sizePreview()->setGeometry( lg );
+    formWindow->sizePreview()->show();
+    formWindow->sizePreview()->raise();
+    if ( WidgetFactory::layoutType( widget ) != WidgetFactory::NoLayout )
+	formWindow->updateChildSelections( widget );
+}
+
+void SizeHandle::mouseReleaseEvent( QMouseEvent *e )
+{
+    if ( e->button() != LeftButton || !active )
+	return;
+
+    formWindow->sizePreview()->hide();
+    if ( geom != widget->geometry() )
+	formWindow->commandHistory()->addCommand( new ResizeCommand( i18n("Resize" ),
+								     formWindow,
+								     widget, origGeom,
+								     widget->geometry() ) );
+    formWindow->emitUpdateProperties( widget );
+}
+
+void SizeHandle::trySetGeometry( QWidget *w, int x, int y, int width, int height )
+{
+    int minw = QMAX( w->minimumSizeHint().width(), w->minimumSize().width() );
+    minw = QMAX( minw, 2 * formWindow->grid().x() );
+    int minh = QMAX( w->minimumSizeHint().height(), w->minimumSize().height() );
+    minh = QMAX( minh, 2 * formWindow->grid().y() );
+    if ( QMAX( minw, width ) > w->maximumWidth() ||
+	 QMAX( minh, height ) > w->maximumHeight() )
+	return;
+    if ( width < minw && x != w->x() )
+	x -= minw - width;
+    if ( height < minh && y != w->y() )
+	y -= minh - height;
+    w->setGeometry( x, y, QMAX( minw, width ), QMAX( minh, height ) );
+}
+
+void SizeHandle::tryResize( QWidget *w, int width, int height )
+{
+    int minw = QMAX( w->minimumSizeHint().width(), w->minimumSize().width() );
+    minw = QMAX( minw, 16 );
+    int minh = QMAX( w->minimumSizeHint().height(), w->minimumSize().height() );
+    minh = QMAX( minh, 16 );
+    w->resize( QMAX( minw, width ), QMAX( minh, height ) );
+}
+
+// ------------------------------------------------------------------------
+
+WidgetSelection::WidgetSelection( FormWindow *parent, QPtrDict<WidgetSelection> *selDict )
+    : selectionDict( selDict )
+{
+    formWindow = parent;
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	handles.insert( i, new SizeHandle( formWindow, (SizeHandle::Direction)i, this ) );
+    }
+    hide();
+}
+
+void WidgetSelection::setWidget( QWidget *w, bool updateDict )
+{
+    if ( !w ) {
+	hide();
+	if ( updateDict )
+	    selectionDict->remove( wid );
+	wid = 0;
+	return;
+    }
+
+    wid = w;
+    bool active = !wid->parentWidget() || WidgetFactory::layoutType( wid->parentWidget() ) == WidgetFactory::NoLayout;
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	SizeHandle *h = handles[ i ];
+	if ( h ) {
+	    h->setWidget( wid );
+	    h->setActive( active );
+	}
+    }
+    updateGeometry();
+    show();
+    if ( updateDict )
+	selectionDict->insert( w, this );
+}
+
+bool WidgetSelection::isUsed() const
+{
+    return wid != 0;
+}
+
+void WidgetSelection::updateGeometry()
+{
+    if ( !wid )
+	return;
+
+    QPoint p = wid->parentWidget()->mapToGlobal( wid->pos() );
+    p = formWindow->mapFromGlobal( p );
+    QRect r( p, wid->size() );
+
+    int w = 6;
+    int h = 6;
+
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	SizeHandle *hndl = handles[ i ];
+	if ( !hndl )
+	    continue;
+	switch ( i ) {
+	case SizeHandle::LeftTop:
+	    hndl->move( r.x() - w / 2, r.y() - h / 2 );
+	    break;
+	case SizeHandle::Top:
+	    hndl->move( r.x() + r.width() / 2 - w / 2, r.y() - h / 2 );
+	    break;
+	case SizeHandle::RightTop:
+	    hndl->move( r.x() + r.width() - w / 2, r.y() - h / 2 );
+	    break;
+	case SizeHandle::Right:
+	    hndl->move( r.x() + r.width() - w / 2, r.y() + r.height() / 2 - h / 2 );
+	    break;
+	case SizeHandle::RightBottom:
+	    hndl->move( r.x() + r.width() - w / 2, r.y() + r.height() - h / 2 );
+	    break;
+	case SizeHandle::Bottom:
+	    hndl->move( r.x() + r.width() / 2 - w / 2, r.y() + r.height() - h / 2 );
+	    break;
+	case SizeHandle::LeftBottom:
+	    hndl->move( r.x() - w / 2, r.y() + r.height() - h / 2 );
+	    break;
+	case SizeHandle::Left:
+	    hndl->move( r.x() - w / 2, r.y() + r.height() / 2 - h / 2 );
+	    break;
+	default:
+	    break;
+	}
+    }
+}
+
+void WidgetSelection::hide()
+{
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	SizeHandle *h = handles[ i ];
+	if ( h )
+	    h->hide();
+    }
+}
+
+void WidgetSelection::show()
+{
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	SizeHandle *h = handles[ i ];
+	if ( h ) {
+	    h->show();
+	    h->raise();
+	}
+    }
+}
+
+void WidgetSelection::update()
+{
+    for ( int i = SizeHandle::LeftTop; i <= SizeHandle::Left; ++i ) {
+	SizeHandle *h = handles[ i ];
+	if ( h )
+	    h->update();
+    }
+}
+
+QWidget *WidgetSelection::widget() const
+{
+    return wid;
+}
+#include "sizehandle.moc"