232 lines
9.5 KiB
C++
232 lines
9.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "fltdlg.hxx"
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#include "ids.hrc"
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#include "fltdlg.hrc"
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#include <com/sun/star/util/XStringWidth.hpp>
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#include <cppuhelper/implbase1.hxx>
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#include <unotools/localfilehelper.hxx>
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#include <tools/urlobj.hxx>
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#include <vcl/button.hxx>
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#include <osl/mutex.hxx>
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#include <vcl/svapp.hxx>
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namespace uui
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{
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/*-************************************************************************************************************//**
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@short initialize filter dialog with start values
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@descr We set some neccessary informations on these instance for later working and create internal structures.
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After construction user should call "SetFilters()" and "SetURL()" to fill listbox with selectable filter
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names and set file name of file, which should be used for selected filter.
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@seealso method SetFilters()
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@seealso method SetURL()
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@param "pParentWindow" , parent window for dialog
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@param "pResMgr" , resource manager
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@return -
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@onerror -
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@threadsafe no
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*//*-*************************************************************************************************************/
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FilterDialog::FilterDialog( Window* pParentWindow ,
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ResMgr* pResMgr )
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: ModalDialog (pParentWindow, ResId( DLG_FILTER_SELECT, *pResMgr ) )
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, m_ftURL (this, ResId( FT_URL, *pResMgr))
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, m_lbFilters (this, ResId( LB_FILTERS, *pResMgr))
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, m_btnOK (this, ResId( BTN_OK, *pResMgr))
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, m_btnCancel (this, ResId( BTN_CANCEL, *pResMgr))
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, m_btnHelp (this, ResId( BTN_HELP, *pResMgr))
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, m_pFilterNames(NULL)
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{
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FreeResource();
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}
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/*-************************************************************************************************************//**
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@short set file name on dialog control
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@descr We convert given URL (it must be an URL!) into valid file name and show it on our dialog.
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@seealso -
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@param "sURL", URL for showing
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@return -
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@onerror -
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@threadsafe no
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*//*-*************************************************************************************************************/
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void FilterDialog::SetURL( const String& sURL )
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{
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// convert it and use given pure string as fallback if conversion failed
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m_ftURL.SetText( impl_buildUIFileName(sURL) );
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}
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/*-************************************************************************************************************//**
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@short change list of filter names
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@descr We save given pointer internal and use it to fill our listbox with given names.
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Saved list pointer is used on method "AskForFilter()" too, to find user selected item
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and return pointer into these list as result of operation.
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So it's possible to call dialog again and again for different or same filter list
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and ask user for his decision by best performance!
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@attention Don't free memory of given list after this call till object will die ... or
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you call "ChangeFilters( NULL )"! Then we forget it too.
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@seealso method AskForFilter()
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@param "pFilterNames", pointer to list of filter names, which should be used for later operations.
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@return -
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@onerror We clear list box and forget our currently set filter informations completly!
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@threadsafe no
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*//*-*************************************************************************************************************/
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void FilterDialog::ChangeFilters( const FilterNameList* pFilterNames )
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{
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m_pFilterNames = pFilterNames;
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m_lbFilters.Clear();
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if( m_pFilterNames != NULL )
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{
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for( FilterNameListPtr pItem = m_pFilterNames->begin();
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pItem != m_pFilterNames->end() ;
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++pItem )
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{
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m_lbFilters.InsertEntry( pItem->sUI );
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}
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}
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}
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/*-************************************************************************************************************//**
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@short ask user for his decision
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@descr We show the dialog and if user finish it with "OK" - we try to find selected item in internal saved
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name list (which you must set in "ChangeFilters()"!). If we return sal_True as result, you can use out
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parameter "pSelectedItem" as pointer into your FilterNameList to get selected item realy ...
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but if we return sal_False ... user hsa cancel the dialog ... you shouldnt do that. pSelectedItem isnt
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set to any valid value then. We don't change them ...
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@seealso method ChangeFilters()
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@param "pSelectedItem", returns result of selection as pointer into set list of filter names
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(valid for function return sal_True only!)
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@return true => pSelectedItem parameter points into name list and represent use decision
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false => use has cancelled dialog (pSelectedItem isnt valid then!)
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@onerror We return false ... but don't change pSelectedItem!
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@threadsafe no
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*//*-*************************************************************************************************************/
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bool FilterDialog::AskForFilter( FilterNameListPtr& pSelectedItem )
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{
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bool bSelected = sal_False;
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if( m_pFilterNames != NULL )
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{
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if( ModalDialog::Execute() == RET_OK )
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{
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String sEntry = m_lbFilters.GetSelectEntry();
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if( sEntry.Len() > 0 )
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{
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int nPos = m_lbFilters.GetSelectEntryPos();
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if( nPos < (int)(m_pFilterNames->size()) )
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{
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pSelectedItem = m_pFilterNames->begin();
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pSelectedItem += nPos;
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bSelected = ( pSelectedItem != m_pFilterNames->end() );
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}
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}
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}
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}
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return bSelected;
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}
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/*-************************************************************************************************************//**
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@short helper class to calculate length of given string
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@descr Instances of it can be used as callback for INetURLObject::getAbbreviated() method to build
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short URLs to show it on GUI. We use in ctor set OutputDevice to call special VCL method ...
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@seealso method OutputDevice::GetTextWidth()
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@seealso method InetURLObject::getAbbreviated()
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@param -
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@return -
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@onerror -
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@threadsafe no
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*//*-*************************************************************************************************************/
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class StringCalculator : public ::cppu::WeakImplHelper1< ::com::sun::star::util::XStringWidth >
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{
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public:
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StringCalculator( const OutputDevice* pDevice )
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: m_pDevice( pDevice )
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{
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}
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sal_Int32 SAL_CALL queryStringWidth( const ::rtl::OUString& sString ) throw( ::com::sun::star::uno::RuntimeException )
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{
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return (sal_Int32)(m_pDevice->GetTextWidth(String(sString)));
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}
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private:
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const OutputDevice* m_pDevice;
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};
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/*-************************************************************************************************************//**
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@short try to build short name of given URL to show it n GUI
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@descr We detect type of given URL automaticly and build this short name depend on this type ...
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If we couldnt make it right we return full given string without any changes ...
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@seealso class LocalFileHelper
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@seealso method InetURLObject::getAbbreviated()
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@param "sName", file name
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@return A short file name ...
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@onerror We return given name without any changes.
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@threadsafe no
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*//*-*************************************************************************************************************/
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String FilterDialog::impl_buildUIFileName( const String& sName )
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{
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String sShortName( sName );
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if( ::utl::LocalFileHelper::ConvertURLToSystemPath( sName, sShortName ) == sal_True )
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{
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// its a system file ... build short name by using osl functionality
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}
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else
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{
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// otherwise its really a url ... build short name by using INetURLObject
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::com::sun::star::uno::Reference< ::com::sun::star::util::XStringWidth > xStringCalculator( new StringCalculator(&m_ftURL) );
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if( xStringCalculator.is() == sal_True )
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{
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INetURLObject aBuilder ( sName );
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Size aSize = m_ftURL.GetOutputSize();
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sShortName = aBuilder.getAbbreviated( xStringCalculator, aSize.Width(), INetURLObject::DECODE_UNAMBIGUOUS );
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}
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}
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return sShortName;
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}
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} // namespace uui
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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