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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 <vcl/status.hxx>
#include <vcl/image.hxx>
#include <vcl/timer.hxx>
#include <svl/eitem.hxx>
#include <sfx2/app.hxx>
#include <svx/dialogs.hrc>
#include <svx/modctrl.hxx>
#include <svx/dialmgr.hxx>
#include <com/sun/star/beans/PropertyValue.hpp>
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::beans::PropertyValue;
SFX_IMPL_STATUSBAR_CONTROL(SvxModifyControl, SfxBoolItem);
namespace
{
const unsigned _FEEDBACK_TIMEOUT = 3000;
}
// class SvxModifyControl ------------------------------------------------
struct SvxModifyControl::ImplData
{
enum ModificationState
{
MODIFICATION_STATE_NO = 0,
MODIFICATION_STATE_YES,
MODIFICATION_STATE_FEEDBACK,
MODIFICATION_STATE_SIZE
};
Timer maTimer;
Image maImages[MODIFICATION_STATE_SIZE];
ModificationState mnModState;
ImplData():
mnModState(MODIFICATION_STATE_NO)
{
maImages[MODIFICATION_STATE_NO] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_NO));
maImages[MODIFICATION_STATE_YES] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_YES));
maImages[MODIFICATION_STATE_FEEDBACK] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_FEEDBACK));
maTimer.SetTimeout(_FEEDBACK_TIMEOUT);
}
};
SvxModifyControl::SvxModifyControl( sal_uInt16 _nSlotId,
sal_uInt16 _nId,
StatusBar& rStb ) :
SfxStatusBarControl( _nSlotId, _nId, rStb ),
mpImpl(new ImplData)
{
mpImpl->maTimer.SetTimeoutHdl( LINK(this, SvxModifyControl, OnTimer) );
}
// -----------------------------------------------------------------------
void SvxModifyControl::StateChanged( sal_uInt16, SfxItemState eState,
const SfxPoolItem* pState )
{
if ( SFX_ITEM_AVAILABLE != eState )
return;
DBG_ASSERT( pState->ISA( SfxBoolItem ), "invalid item type" );
SfxBoolItem* pItem = (SfxBoolItem*)pState;
mpImpl->maTimer.Stop();
bool modified = pItem->GetValue();
bool start = ( !modified && mpImpl->mnModState == ImplData::MODIFICATION_STATE_YES); // should timer be started and feedback image displayed ?
mpImpl->mnModState = (start ? ImplData::MODIFICATION_STATE_FEEDBACK : (modified ? ImplData::MODIFICATION_STATE_YES : ImplData::MODIFICATION_STATE_NO));
_repaint();
int nResId = modified ? RID_SVXSTR_DOC_MODIFIED_YES : RID_SVXSTR_DOC_MODIFIED_NO;
GetStatusBar().SetQuickHelpText(GetId(), SVX_RESSTR(nResId));
if ( start )
mpImpl->maTimer.Start();
}
// -----------------------------------------------------------------------
IMPL_LINK( SvxModifyControl, OnTimer, Timer *, pTimer )
{
if (pTimer == 0)
return 0;
pTimer->Stop();
mpImpl->mnModState = ImplData::MODIFICATION_STATE_NO;
_repaint();
return 0;
}
// -----------------------------------------------------------------------
void SvxModifyControl::_repaint()
{
if ( GetStatusBar().AreItemsVisible() )
GetStatusBar().SetItemData( GetId(), 0 ); // force repaint
}
// -----------------------------------------------------------------------
namespace {
/**
* Given a bounding rectangle and an image, determine the top-left position
* of the image so that the image would look centered both horizontally and
* vertically.
*
* @param rBoundingRect bounding rectangle
* @param rImg image
*
* @return Point top-left corner of the centered image position
*/
Point centerImage(const Rectangle& rBoundingRect, const Image& rImg)
{
Size aImgSize = rImg.GetSizePixel();
Size aRectSize = rBoundingRect.GetSize();
long nXOffset = (aRectSize.getWidth() - aImgSize.getWidth())/2;
long nYOffset = (aRectSize.getHeight() - aImgSize.getHeight())/2;
Point aPt = rBoundingRect.TopLeft();
aPt += Point(nXOffset, nYOffset);
return aPt;
}
}
void SvxModifyControl::Paint( const UserDrawEvent& rUsrEvt )
{
OutputDevice* pDev = rUsrEvt.GetDevice();
Rectangle aRect = rUsrEvt.GetRect();
ImplData::ModificationState state = mpImpl->mnModState;
Point aPt = centerImage(aRect, mpImpl->maImages[state]);
pDev->DrawImage(aPt, mpImpl->maImages[state]);
}
void SvxModifyControl::DoubleClick()
{
if (mpImpl->mnModState != ImplData::MODIFICATION_STATE_YES)
// document not modified. nothing to do here.
return;
Sequence<PropertyValue> aArgs;
execute(OUString(".uno:Save"), aArgs);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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