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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "fltdlg.hxx"
21 :
22 : #include "ids.hrc"
23 :
24 : #include "fltdlg.hrc"
25 :
26 : #include <com/sun/star/util/XStringWidth.hpp>
27 : #include <cppuhelper/implbase1.hxx>
28 : #include <unotools/localfilehelper.hxx>
29 : #include <tools/urlobj.hxx>
30 :
31 : #include <vcl/button.hxx>
32 : #include <osl/mutex.hxx>
33 : #include <vcl/svapp.hxx>
34 :
35 : namespace uui
36 : {
37 :
38 : /*-************************************************************************************************************//**
39 : @short initialize filter dialog with start values
40 : @descr We set some neccessary informations on these instance for later working and create internal structures.
41 : After construction user should call "SetFilters()" and "SetURL()" to fill listbox with selectable filter
42 : names and set file name of file, which should be used for selected filter.
43 :
44 : @seealso method SetFilters()
45 : @seealso method SetURL()
46 :
47 : @param "pParentWindow" , parent window for dialog
48 : @param "pResMgr" , resource manager
49 : @return -
50 :
51 : @onerror -
52 : @threadsafe no
53 : *//*-*************************************************************************************************************/
54 0 : FilterDialog::FilterDialog( Window* pParentWindow ,
55 : ResMgr* pResMgr )
56 : : ModalDialog ( pParentWindow, ResId( DLG_FILTER_SELECT, *pResMgr ) )
57 : , m_ftURL ( this, ResId( FT_URL, *pResMgr ) )
58 : , m_lbFilters ( this, ResId( LB_FILTERS, *pResMgr ) )
59 : , m_btnOK ( this, ResId( BTN_OK, *pResMgr ) )
60 : , m_btnCancel ( this, ResId( BTN_CANCEL, *pResMgr ) )
61 0 : , m_btnHelp ( this, ResId( BTN_HELP, *pResMgr ) )
62 : {
63 0 : FreeResource();
64 0 : }
65 :
66 : /*-************************************************************************************************************//**
67 : @short set file name on dialog control
68 : @descr We convert given URL (it must be an URL!) into valid file name and show it on our dialog.
69 :
70 : @seealso -
71 :
72 : @param "sURL", URL for showing
73 : @return -
74 :
75 : @onerror -
76 : @threadsafe no
77 : *//*-*************************************************************************************************************/
78 0 : void FilterDialog::SetURL( const String& sURL )
79 : {
80 : // convert it and use given pure string as fallback if conversion failed
81 0 : m_ftURL.SetText( impl_buildUIFileName(sURL) );
82 0 : }
83 :
84 : /*-************************************************************************************************************//**
85 : @short change list of filter names
86 : @descr We save given pointer internal and use it to fill our listbox with given names.
87 : Saved list pointer is used on method "AskForFilter()" too, to find user selected item
88 : and return pointer into these list as result of operation.
89 : So it's possible to call dialog again and again for different or same filter list
90 : and ask user for his decision by best performance!
91 :
92 : @attention Don't free memory of given list after this call till object will die ... or
93 : you call "ChangeFilters( NULL )"! Then we forget it too.
94 :
95 : @seealso method AskForFilter()
96 :
97 : @param "pFilterNames", pointer to list of filter names, which should be used for later operations.
98 : @return -
99 :
100 : @onerror We clear list box and forget our currently set filter informations completly!
101 : @threadsafe no
102 : *//*-*************************************************************************************************************/
103 0 : void FilterDialog::ChangeFilters( const FilterNameList* pFilterNames )
104 : {
105 0 : m_pFilterNames = pFilterNames;
106 0 : m_lbFilters.Clear();
107 0 : if( m_pFilterNames != NULL )
108 : {
109 0 : for( FilterNameListPtr pItem = m_pFilterNames->begin();
110 0 : pItem != m_pFilterNames->end() ;
111 : ++pItem )
112 : {
113 0 : m_lbFilters.InsertEntry( pItem->sUI );
114 : }
115 : }
116 0 : }
117 :
118 : /*-************************************************************************************************************//**
119 : @short ask user for his decision
120 : @descr We show the dialog and if user finish it with "OK" - we try to find selected item in internal saved
121 : name list (which you must set in "ChangeFilters()"!). If we return sal_True as result, you can use out
122 : parameter "pSelectedItem" as pointer into your FilterNameList to get selected item realy ...
123 : but if we return sal_False ... user hsa cancel the dialog ... you shouldnt do that. pSelectedItem isnt
124 : set to any valid value then. We don't change them ...
125 :
126 : @seealso method ChangeFilters()
127 :
128 : @param "pSelectedItem", returns result of selection as pointer into set list of filter names
129 : (valid for function return sal_True only!)
130 : @return true => pSelectedItem parameter points into name list and represent use decision
131 : false => use has cancelled dialog (pSelectedItem isnt valid then!)
132 :
133 : @onerror We return false ... but don't change pSelectedItem!
134 : @threadsafe no
135 : *//*-*************************************************************************************************************/
136 0 : bool FilterDialog::AskForFilter( FilterNameListPtr& pSelectedItem )
137 : {
138 0 : bool bSelected = sal_False;
139 :
140 0 : if( m_pFilterNames != NULL )
141 : {
142 0 : if( ModalDialog::Execute() == RET_OK )
143 : {
144 0 : String sEntry = m_lbFilters.GetSelectEntry();
145 0 : if( sEntry.Len() > 0 )
146 : {
147 0 : int nPos = m_lbFilters.GetSelectEntryPos();
148 0 : if( nPos < (int)(m_pFilterNames->size()) )
149 : {
150 0 : pSelectedItem = m_pFilterNames->begin();
151 0 : pSelectedItem += nPos;
152 0 : bSelected = ( pSelectedItem != m_pFilterNames->end() );
153 : }
154 0 : }
155 : }
156 : }
157 :
158 0 : return bSelected;
159 : }
160 :
161 : /*-************************************************************************************************************//**
162 : @short helper class to calculate length of given string
163 : @descr Instances of it can be used as callback for INetURLObject::getAbbreviated() method to build
164 : short URLs to show it on GUI. We use in ctor set OutputDevice to call special VCL method ...
165 :
166 : @seealso method OutputDevice::GetTextWidth()
167 : @seealso method InetURLObject::getAbbreviated()
168 :
169 : @param -
170 : @return -
171 :
172 : @onerror -
173 : @threadsafe no
174 : *//*-*************************************************************************************************************/
175 0 : class StringCalculator : public ::cppu::WeakImplHelper1< ::com::sun::star::util::XStringWidth >
176 : {
177 : public:
178 0 : StringCalculator( const OutputDevice* pDevice )
179 0 : : m_pDevice( pDevice )
180 : {
181 0 : }
182 :
183 0 : sal_Int32 SAL_CALL queryStringWidth( const ::rtl::OUString& sString ) throw( ::com::sun::star::uno::RuntimeException )
184 : {
185 0 : return (sal_Int32)(m_pDevice->GetTextWidth(String(sString)));
186 : }
187 :
188 : private:
189 : const OutputDevice* m_pDevice;
190 : };
191 :
192 : /*-************************************************************************************************************//**
193 : @short try to build short name of given URL to show it n GUI
194 : @descr We detect type of given URL automaticly and build this short name depend on this type ...
195 : If we couldnt make it right we return full given string without any changes ...
196 :
197 : @seealso class LocalFileHelper
198 : @seealso method InetURLObject::getAbbreviated()
199 :
200 : @param "sName", file name
201 : @return A short file name ...
202 :
203 : @onerror We return given name without any changes.
204 : @threadsafe no
205 : *//*-*************************************************************************************************************/
206 0 : String FilterDialog::impl_buildUIFileName( const String& sName )
207 : {
208 0 : String sShortName( sName );
209 :
210 0 : if( ::utl::LocalFileHelper::ConvertURLToSystemPath( sName, sShortName ) == sal_True )
211 : {
212 : // its a system file ... build short name by using osl functionality
213 : }
214 : else
215 : {
216 : // otherwise its really a url ... build short name by using INetURLObject
217 0 : ::com::sun::star::uno::Reference< ::com::sun::star::util::XStringWidth > xStringCalculator( new StringCalculator(&m_ftURL) );
218 0 : if( xStringCalculator.is() == sal_True )
219 : {
220 0 : INetURLObject aBuilder ( sName );
221 0 : Size aSize = m_ftURL.GetOutputSize();
222 0 : sShortName = aBuilder.getAbbreviated( xStringCalculator, aSize.Width(), INetURLObject::DECODE_UNAMBIGUOUS );
223 0 : }
224 : }
225 :
226 0 : return sShortName;
227 : }
228 :
229 : } // namespace uui
230 :
231 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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