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Diffstat (limited to 'kdevdesigner/designer/sizehandle.cpp')
| -rw-r--r-- | kdevdesigner/designer/sizehandle.cpp | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/kdevdesigner/designer/sizehandle.cpp b/kdevdesigner/designer/sizehandle.cpp new file mode 100644 index 00000000..d60f223b --- /dev/null +++ b/kdevdesigner/designer/sizehandle.cpp @@ -0,0 +1,388 @@ +/********************************************************************** +** Copyright (C) 2000 Trolltech AS. All rights reserved. +** +** This file is part of TQt 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. +** +** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition +** 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 +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for +** information about TQt Commercial License Agreements. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#include <tqvariant.h> // HP-UX compiler needs this here + +#include "sizehandle.h" +#include "formwindow.h" +#include "widgetfactory.h" + +#include <tqwidget.h> +#include <tqapplication.h> +#include <tqlabel.h> +#include <tdelocale.h> + +SizeHandle::SizeHandle( FormWindow *parent, Direction d, WidgetSelection *s ) + : TQWidget( 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( TQWidget *w ) +{ + widget = w; +} + +void SizeHandle::paintEvent( TQPaintEvent * ) +{ + if ( ( (FormWindow*)parentWidget() )->currentWidget() != widget ) + return; + TQPainter p( this ); + p.setPen( blue ); + p.drawRect( 0, 0, width(), height() ); +} + +void SizeHandle::mousePressEvent( TQMouseEvent *e ) +{ + if ( !widget || e->button() != Qt::LeftButton || !active ) + return; + oldPressPos = e->pos(); + geom = origGeom = TQRect( widget->pos(), widget->size() ); +} + +void SizeHandle::mouseMoveEvent( TQMouseEvent *e ) +{ + if ( !widget || ( e->state() & Qt::LeftButton ) != Qt::LeftButton || !active ) + return; + TQPoint rp = mapFromGlobal( e->globalPos() ); + TQPoint d = oldPressPos - rp; + oldPressPos = rp; + TQPoint checkPos = widget->parentWidget()->mapFromGlobal( e->globalPos() ); + TQRect 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; + } + + TQPoint p = pos(); + sel->updateGeometry(); + oldPressPos += ( p - pos() ); + + formWindow->sizePreview()->setText( i18n( "%1/%2" ).arg( widget->width() ).arg( widget->height() ) ); + formWindow->sizePreview()->adjustSize(); + TQRect lg( formWindow->mapFromGlobal( e->globalPos() ) + TQPoint( 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( TQMouseEvent *e ) +{ + if ( e->button() != Qt::LeftButton || !active ) + return; + + formWindow->sizePreview()->hide(); + if ( geom != widget->geometry() ) + formWindow->commandHistory()->addCommand( new ResizeCommand( i18n( "Resize" ), + formWindow, + widget, origGeom, + widget->geometry() ) ); + formWindow->emitUpdateProperties( TQT_TQOBJECT(widget) ); +} + +void SizeHandle::trySetGeometry( TQWidget *w, int x, int y, int width, int height ) +{ + int minw = TQMAX( w->minimumSizeHint().width(), w->minimumSize().width() ); + minw = TQMAX( minw, 2 * formWindow->grid().x() ); + int minh = TQMAX( w->minimumSizeHint().height(), w->minimumSize().height() ); + minh = TQMAX( minh, 2 * formWindow->grid().y() ); + if ( TQMAX( minw, width ) > w->maximumWidth() || + TQMAX( 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, TQMAX( minw, width ), TQMAX( minh, height ) ); +} + +void SizeHandle::tryResize( TQWidget *w, int width, int height ) +{ + int minw = TQMAX( w->minimumSizeHint().width(), w->minimumSize().width() ); + minw = TQMAX( minw, 16 ); + int minh = TQMAX( w->minimumSizeHint().height(), w->minimumSize().height() ); + minh = TQMAX( minh, 16 ); + w->resize( TQMAX( minw, width ), TQMAX( minh, height ) ); +} + +// ------------------------------------------------------------------------ + +WidgetSelection::WidgetSelection( FormWindow *parent, TQPtrDict<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( TQWidget *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 || !wid->parentWidget() ) + return; + + TQPoint p = wid->parentWidget()->mapToGlobal( wid->pos() ); + p = formWindow->mapFromGlobal( p ); + TQRect 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(); + } +} + +TQWidget *WidgetSelection::widget() const +{ + return wid; +} |