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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 <com/sun/star/util/XStringWidth.hpp>
25 : #include <cppuhelper/implbase1.hxx>
26 : #include <unotools/localfilehelper.hxx>
27 : #include <tools/urlobj.hxx>
28 :
29 : #include <vcl/button.hxx>
30 : #include <osl/mutex.hxx>
31 : #include <vcl/svapp.hxx>
32 :
33 : namespace uui
34 : {
35 :
36 : /*-************************************************************************************************************
37 : @short initialize filter dialog with start values
38 : @descr We set some necessary information on these instance for later working and create internal structures.
39 : After construction user should call "SetFilters()" and "SetURL()" to fill listbox with selectable filter
40 : names and set file name of file, which should be used for selected filter.
41 :
42 : @seealso method SetFilters()
43 : @seealso method SetURL()
44 :
45 : @param "pParentWindow" , parent window for dialog
46 : @threadsafe no
47 : *//*-*************************************************************************************************************/
48 0 : FilterDialog::FilterDialog( vcl::Window* pParentWindow )
49 : : ModalDialog (pParentWindow, "FilterSelectDialog", "uui/ui/filterselect.ui" )
50 0 : , m_pFilterNames(NULL)
51 : {
52 0 : get(m_pFtURL, "url");
53 0 : get(m_pLbFilters, "filters");
54 0 : m_pFtURL->GetOutputSizePixel();
55 0 : Size aSize(pParentWindow->LogicToPixel(Size(182, 175), MAP_APPFONT));
56 0 : m_pLbFilters->set_height_request(aSize.Height());
57 0 : m_pLbFilters->set_width_request(aSize.Width());
58 0 : m_pFtURL->SetSizePixel(Size(aSize.Width(), m_pFtURL->GetOptimalSize().Height()));
59 0 : }
60 :
61 : /*-************************************************************************************************************
62 : @short set file name on dialog control
63 : @descr We convert given URL (it must be an URL!) into valid file name and show it on our dialog.
64 : @param "sURL", URL for showing
65 : @threadsafe no
66 : *//*-*************************************************************************************************************/
67 0 : void FilterDialog::SetURL( const OUString& sURL )
68 : {
69 : // convert it and use given pure string as fallback if conversion failed
70 0 : m_pFtURL->SetText( impl_buildUIFileName(sURL) );
71 0 : }
72 :
73 : /*-************************************************************************************************************
74 : @short change list of filter names
75 : @descr We save given pointer internal and use it to fill our listbox with given names.
76 : Saved list pointer is used on method "AskForFilter()" too, to find user selected item
77 : and return pointer into these list as result of operation.
78 : So it's possible to call dialog again and again for different or same filter list
79 : and ask user for his decision by best performance!
80 :
81 : @attention Don't free memory of given list after this call till object will die ... or
82 : you call "ChangeFilters( NULL )"! Then we forget it too.
83 :
84 : @seealso method AskForFilter()
85 :
86 : @param "pFilterNames", pointer to list of filter names, which should be used for later operations.
87 : @onerror We clear list box and forget our currently set filter information completely!
88 : @threadsafe no
89 : *//*-*************************************************************************************************************/
90 0 : void FilterDialog::ChangeFilters( const FilterNameList* pFilterNames )
91 : {
92 0 : m_pFilterNames = pFilterNames;
93 0 : m_pLbFilters->Clear();
94 0 : if( m_pFilterNames != NULL )
95 : {
96 0 : for( FilterNameListPtr pItem = m_pFilterNames->begin();
97 0 : pItem != m_pFilterNames->end() ;
98 : ++pItem )
99 : {
100 0 : m_pLbFilters->InsertEntry( pItem->sUI );
101 : }
102 : }
103 0 : }
104 :
105 : /*-************************************************************************************************************
106 : @short ask user for his decision
107 : @descr We show the dialog and if user finish it with "OK" - we try to find selected item in internal saved
108 : name list (which you must set in "ChangeFilters()"!). If we return sal_True as result, you can use out
109 : parameter "pSelectedItem" as pointer into your FilterNameList to get selected item really ...
110 : but if we return sal_False ... user has cancel the dialog ... you should not do that. pSelectedItem isnt
111 : set to any valid value then. We don't change them ...
112 :
113 : @seealso method ChangeFilters()
114 :
115 : @param "pSelectedItem", returns result of selection as pointer into set list of filter names
116 : (valid for function return sal_True only!)
117 : @return true => pSelectedItem parameter points into name list and represent use decision
118 : false => use has cancelled dialog (pSelectedItem isn't valid then!)
119 :
120 : @onerror We return false ... but don't change pSelectedItem!
121 : @threadsafe no
122 : *//*-*************************************************************************************************************/
123 0 : bool FilterDialog::AskForFilter( FilterNameListPtr& pSelectedItem )
124 : {
125 0 : bool bSelected = false;
126 :
127 0 : if( m_pFilterNames != NULL )
128 : {
129 0 : if( ModalDialog::Execute() == RET_OK )
130 : {
131 0 : OUString sEntry = m_pLbFilters->GetSelectEntry();
132 0 : if( !sEntry.isEmpty() )
133 : {
134 0 : int nPos = m_pLbFilters->GetSelectEntryPos();
135 0 : if( nPos < (int)(m_pFilterNames->size()) )
136 : {
137 0 : pSelectedItem = m_pFilterNames->begin();
138 0 : pSelectedItem += nPos;
139 0 : bSelected = ( pSelectedItem != m_pFilterNames->end() );
140 : }
141 0 : }
142 : }
143 : }
144 :
145 0 : return bSelected;
146 : }
147 :
148 : /*-************************************************************************************************************
149 : @short helper class to calculate length of given string
150 : @descr Instances of it can be used as callback for INetURLObject::getAbbreviated() method to build
151 : short URLs to show it on GUI. We use in ctor set OutputDevice to call special VCL method ...
152 :
153 : @seealso method OutputDevice::GetTextWidth()
154 : @seealso method InetURLObject::getAbbreviated()
155 : @threadsafe no
156 : *//*-*************************************************************************************************************/
157 0 : class StringCalculator : public ::cppu::WeakImplHelper1< ::com::sun::star::util::XStringWidth >
158 : {
159 : public:
160 0 : StringCalculator( const OutputDevice* pDevice )
161 0 : : m_pDevice( pDevice )
162 : {
163 0 : }
164 :
165 0 : sal_Int32 SAL_CALL queryStringWidth( const OUString& sString ) throw( ::com::sun::star::uno::RuntimeException, std::exception ) SAL_OVERRIDE
166 : {
167 0 : return (sal_Int32)(m_pDevice->GetTextWidth(sString));
168 : }
169 :
170 : private:
171 : const OutputDevice* m_pDevice;
172 : };
173 :
174 : /*-************************************************************************************************************
175 : @short try to build short name of given URL to show it n GUI
176 : @descr We detect type of given URL automatically and build this short name depend on this type ...
177 : If we couldnt make it right we return full given string without any changes ...
178 :
179 : @seealso class LocalFileHelper
180 : @seealso method InetURLObject::getAbbreviated()
181 :
182 : @param "sName", file name
183 : @return A short file name ...
184 :
185 : @onerror We return given name without any changes.
186 : @threadsafe no
187 : *//*-*************************************************************************************************************/
188 0 : OUString FilterDialog::impl_buildUIFileName( const OUString& sName )
189 : {
190 0 : OUString sShortName( sName );
191 :
192 0 : if( ::utl::LocalFileHelper::ConvertURLToSystemPath( sName, sShortName ) )
193 : {
194 : // it's a system file ... build short name by using osl functionality
195 : }
196 : else
197 : {
198 : // otherwise its really a url ... build short name by using INetURLObject
199 0 : ::com::sun::star::uno::Reference< ::com::sun::star::util::XStringWidth > xStringCalculator( new StringCalculator(m_pFtURL) );
200 0 : if( xStringCalculator.is() )
201 : {
202 0 : INetURLObject aBuilder ( sName );
203 0 : Size aSize = m_pFtURL->GetOutputSizePixel();
204 0 : sShortName = aBuilder.getAbbreviated( xStringCalculator, aSize.Width(), INetURLObject::DECODE_UNAMBIGUOUS );
205 0 : }
206 : }
207 :
208 0 : return sShortName;
209 : }
210 :
211 180 : } // namespace uui
212 :
213 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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