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-rw-r--r--toolkit/source/awt/scrollabledialog.cxx173
1 files changed, 173 insertions, 0 deletions
diff --git a/toolkit/source/awt/scrollabledialog.cxx b/toolkit/source/awt/scrollabledialog.cxx
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+/* -*- 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: */