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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 <vcl/status.hxx>
21 : #include <vcl/image.hxx>
22 : #include <vcl/timer.hxx>
23 : #include <svl/eitem.hxx>
24 : #include <sfx2/app.hxx>
25 :
26 : #include <svx/dialogs.hrc>
27 : #include <svx/modctrl.hxx>
28 : #include <svx/dialmgr.hxx>
29 :
30 : #include <com/sun/star/beans/PropertyValue.hpp>
31 :
32 : using ::com::sun::star::uno::Sequence;
33 : using ::com::sun::star::beans::PropertyValue;
34 : using ::rtl::OUString;
35 :
36 26 : SFX_IMPL_STATUSBAR_CONTROL(SvxModifyControl, SfxBoolItem);
37 :
38 :
39 : namespace
40 : {
41 : const unsigned _FEEDBACK_TIMEOUT = 3000;
42 : }
43 :
44 :
45 : // class SvxModifyControl ------------------------------------------------
46 :
47 0 : struct SvxModifyControl::ImplData
48 : {
49 : enum ModificationState
50 : {
51 : MODIFICATION_STATE_NO = 0,
52 : MODIFICATION_STATE_YES,
53 : MODIFICATION_STATE_FEEDBACK,
54 : MODIFICATION_STATE_SIZE
55 : };
56 :
57 : Timer maTimer;
58 : Image maImages[MODIFICATION_STATE_SIZE];
59 :
60 : ModificationState mnModState;
61 :
62 0 : ImplData():
63 0 : mnModState(MODIFICATION_STATE_NO)
64 : {
65 0 : maImages[MODIFICATION_STATE_NO] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_NO));
66 0 : maImages[MODIFICATION_STATE_YES] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_YES));
67 0 : maImages[MODIFICATION_STATE_FEEDBACK] = Image(SVX_RES(RID_SVXBMP_DOC_MODIFIED_FEEDBACK));
68 0 : maTimer.SetTimeout(_FEEDBACK_TIMEOUT);
69 0 : }
70 : };
71 :
72 0 : SvxModifyControl::SvxModifyControl( sal_uInt16 _nSlotId,
73 : sal_uInt16 _nId,
74 : StatusBar& rStb ) :
75 :
76 : SfxStatusBarControl( _nSlotId, _nId, rStb ),
77 0 : mpImpl(new ImplData)
78 : {
79 0 : mpImpl->maTimer.SetTimeoutHdl( LINK(this, SvxModifyControl, OnTimer) );
80 0 : }
81 :
82 : // -----------------------------------------------------------------------
83 :
84 0 : void SvxModifyControl::StateChanged( sal_uInt16, SfxItemState eState,
85 : const SfxPoolItem* pState )
86 : {
87 0 : if ( SFX_ITEM_AVAILABLE != eState )
88 0 : return;
89 :
90 : DBG_ASSERT( pState->ISA( SfxBoolItem ), "invalid item type" );
91 0 : SfxBoolItem* pItem = (SfxBoolItem*)pState;
92 0 : mpImpl->maTimer.Stop();
93 :
94 0 : bool modified = pItem->GetValue();
95 0 : bool start = ( !modified && mpImpl->mnModState == ImplData::MODIFICATION_STATE_YES); // should timer be started and feedback image displayed ?
96 :
97 0 : mpImpl->mnModState = (start ? ImplData::MODIFICATION_STATE_FEEDBACK : (modified ? ImplData::MODIFICATION_STATE_YES : ImplData::MODIFICATION_STATE_NO));
98 :
99 0 : _repaint();
100 :
101 0 : int nResId = modified ? RID_SVXSTR_DOC_MODIFIED_YES : RID_SVXSTR_DOC_MODIFIED_NO;
102 0 : GetStatusBar().SetQuickHelpText(GetId(), SVX_RESSTR(nResId));
103 :
104 0 : if ( start )
105 0 : mpImpl->maTimer.Start();
106 : }
107 :
108 : // -----------------------------------------------------------------------
109 :
110 0 : IMPL_LINK( SvxModifyControl, OnTimer, Timer *, pTimer )
111 : {
112 0 : if (pTimer == 0)
113 0 : return 0;
114 :
115 0 : pTimer->Stop();
116 0 : mpImpl->mnModState = ImplData::MODIFICATION_STATE_NO;
117 :
118 0 : _repaint();
119 :
120 0 : return 0;
121 : }
122 :
123 : // -----------------------------------------------------------------------
124 :
125 0 : void SvxModifyControl::_repaint()
126 : {
127 0 : if ( GetStatusBar().AreItemsVisible() )
128 0 : GetStatusBar().SetItemData( GetId(), 0 ); // force repaint
129 0 : }
130 :
131 : // -----------------------------------------------------------------------
132 :
133 : namespace {
134 :
135 : /**
136 : * Given a bounding rectangle and an image, determine the top-left position
137 : * of the image so that the image would look centered both horizontally and
138 : * vertically.
139 : *
140 : * @param rBoundingRect bounding rectangle
141 : * @param rImg image
142 : *
143 : * @return Point top-left corner of the centered image position
144 : */
145 0 : Point centerImage(const Rectangle& rBoundingRect, const Image& rImg)
146 : {
147 0 : Size aImgSize = rImg.GetSizePixel();
148 0 : Size aRectSize = rBoundingRect.GetSize();
149 0 : long nXOffset = (aRectSize.getWidth() - aImgSize.getWidth())/2;
150 0 : long nYOffset = (aRectSize.getHeight() - aImgSize.getHeight())/2;
151 0 : Point aPt = rBoundingRect.TopLeft();
152 0 : aPt += Point(nXOffset, nYOffset);
153 0 : return aPt;
154 : }
155 :
156 : }
157 :
158 :
159 0 : void SvxModifyControl::Paint( const UserDrawEvent& rUsrEvt )
160 : {
161 0 : OutputDevice* pDev = rUsrEvt.GetDevice();
162 0 : Rectangle aRect = rUsrEvt.GetRect();
163 :
164 0 : ImplData::ModificationState state = mpImpl->mnModState;
165 0 : Point aPt = centerImage(aRect, mpImpl->maImages[state]);
166 0 : pDev->DrawImage(aPt, mpImpl->maImages[state]);
167 0 : }
168 :
169 0 : void SvxModifyControl::DoubleClick()
170 : {
171 0 : if (mpImpl->mnModState != ImplData::MODIFICATION_STATE_YES)
172 : // document not modified. nothing to do here.
173 0 : return;
174 :
175 0 : Sequence<PropertyValue> aArgs;
176 0 : execute(OUString(".uno:Save"), aArgs);
177 : }
178 :
179 :
180 :
181 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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