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Diffstat (limited to 'toolkit/source/awt/scrollabledialog.cxx')
| -rw-r--r-- | toolkit/source/awt/scrollabledialog.cxx | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/toolkit/source/awt/scrollabledialog.cxx b/toolkit/source/awt/scrollabledialog.cxx new file mode 100644 index 0000000000..bcc8d18e07 --- /dev/null +++ b/toolkit/source/awt/scrollabledialog.cxx @@ -0,0 +1,173 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <helper/scrollabledialog.hxx> +#include <vcl/settings.hxx> + +namespace toolkit +{ + +// Using WB_AUTOHSCROLL, WB_AUTOVSCROLL here sucks big time, there is a +// problem in the toolkit class where there are some clashing IDs +// ( css::awt::VclWindowPeerAttribute::VSCROLL has the same value +// as css::awt::WindowAttribute::NODECORATION and they are used +// in the same bitmap :-( WB_VSCROLL & WB_HSCROLL apparently are only for +// child classes ( whole thing is a mess if you ask me ) +ScrollableDialog::ScrollableDialog( vcl::Window* pParent, WinBits nStyle, Dialog::InitFlag eFlag ) + : Dialog( pParent, nStyle & ~( WB_AUTOHSCROLL | WB_AUTOVSCROLL ), eFlag ), + maHScrollBar( VclPtr<ScrollBar>::Create(this, WB_HSCROLL | WB_DRAG) ), + maVScrollBar( VclPtr<ScrollBar>::Create(this, WB_VSCROLL | WB_DRAG) ), + mbHasHoriBar( false ), + mbHasVertBar( false ), + maScrollVis( None ) +{ + Link<ScrollBar*,void> aLink( LINK( this, ScrollableDialog, ScrollBarHdl ) ); + maVScrollBar->SetScrollHdl( aLink ); + maHScrollBar->SetScrollHdl( aLink ); + + ScrollBarVisibility aVis = None; + + if ( nStyle & ( WB_AUTOHSCROLL | WB_AUTOVSCROLL ) ) + { + if ( nStyle & WB_AUTOHSCROLL ) + aVis = Hori; + if ( nStyle & WB_AUTOVSCROLL ) + { + if ( aVis == Hori ) + aVis = Both; + else + aVis = Vert; + } + } + setScrollVisibility( aVis ); + mnScrWidth = Dialog::GetSettings().GetStyleSettings().GetScrollBarSize(); +} + +void ScrollableDialog::setScrollVisibility( ScrollBarVisibility rVisState ) +{ + maScrollVis = rVisState; + if ( maScrollVis == Hori || maScrollVis == Both ) + { + mbHasHoriBar = true; + maHScrollBar->Show(); + } + if ( maScrollVis == Vert || maScrollVis == Both ) + { + mbHasVertBar = true; + maVScrollBar->Show(); + } + if ( mbHasHoriBar || mbHasVertBar ) + SetStyle( Dialog::GetStyle() | WB_CLIPCHILDREN ); +} + +ScrollableDialog::~ScrollableDialog() +{ + disposeOnce(); +} + +void ScrollableDialog::dispose() +{ + maHScrollBar.disposeAndClear(); + maVScrollBar.disposeAndClear(); + Dialog::dispose(); +} + +void ScrollableDialog::lcl_Scroll( tools::Long nX, tools::Long nY ) +{ + tools::Long nXScroll = mnScrollPos.X() - nX; + tools::Long nYScroll = mnScrollPos.Y() - nY; + mnScrollPos = Point( nX, nY ); + + tools::Rectangle aScrollableArea( 0, 0, maScrollArea.Width(), maScrollArea.Height() ); + Scroll(nXScroll, nYScroll, aScrollableArea ); + // Manually scroll all children ( except the scrollbars ) + for ( int index = 0; index < GetChildCount(); ++index ) + { + vcl::Window* pChild = GetChild( index ); + if ( pChild && pChild != maVScrollBar.get() && pChild != maHScrollBar.get() ) + { + Point aPos = pChild->GetPosPixel(); + aPos += Point( nXScroll, nYScroll ); + pChild->SetPosPixel( aPos ); + } + } +} + +IMPL_LINK( ScrollableDialog, ScrollBarHdl, ScrollBar*, pSB, void ) +{ + sal_uInt16 nPos = static_cast<sal_uInt16>(pSB->GetThumbPos()); + if( pSB == maVScrollBar.get() ) + lcl_Scroll(mnScrollPos.X(), nPos ); + else if( pSB == maHScrollBar.get() ) + lcl_Scroll(nPos, mnScrollPos.Y() ); +} + +void ScrollableDialog::SetScrollTop( tools::Long nTop ) +{ + Point aOld = mnScrollPos; + lcl_Scroll( mnScrollPos.X() , mnScrollPos.Y() - nTop ); + maHScrollBar->SetThumbPos( 0 ); + // new pos is 0,0 + mnScrollPos = aOld; +} +void ScrollableDialog::SetScrollLeft( tools::Long nLeft ) +{ + Point aOld = mnScrollPos; + lcl_Scroll( mnScrollPos.X() - nLeft , mnScrollPos.Y() ); + maVScrollBar->SetThumbPos( 0 ); + // new pos is 0,0 + mnScrollPos = aOld; +} + +void ScrollableDialog::SetScrollWidth( tools::Long nWidth ) +{ + maScrollArea.setWidth( nWidth ); + ResetScrollBars(); +} + +void ScrollableDialog::SetScrollHeight( tools::Long nHeight ) +{ + maScrollArea.setHeight( nHeight ); + ResetScrollBars(); +} + +void ScrollableDialog::Resize() +{ + ResetScrollBars(); +} + +void ScrollableDialog::ResetScrollBars() +{ + Size aOutSz = GetOutputSizePixel(); + + Point aVPos( aOutSz.Width() - mnScrWidth, 0 ); + Point aHPos( 0, aOutSz.Height() - mnScrWidth ); + + maVScrollBar->SetPosSizePixel( aVPos, Size( mnScrWidth, GetSizePixel().Height() - mnScrWidth ) ); + maHScrollBar->SetPosSizePixel( aHPos, Size( GetSizePixel().Width() - mnScrWidth, mnScrWidth ) ); + + maHScrollBar->SetRangeMax( maScrollArea.Width() + mnScrWidth ); + maHScrollBar->SetVisibleSize( GetSizePixel().Width() ); + + maVScrollBar->SetRangeMax( maScrollArea.Height() + mnScrWidth ); + maVScrollBar->SetVisibleSize( GetSizePixel().Height() ); +} + +} // toolkit +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |