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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 "virtoutp.hxx"
21 : #include "viewopt.hxx"
22 : #include "rootfrm.hxx"
23 :
24 : #if OSL_DEBUG_LEVEL > 1
25 :
26 : class DbgRect
27 : {
28 : OutputDevice *pOut;
29 : public:
30 : DbgRect( OutputDevice *pOut, const Rectangle &rRect,
31 : const ColorData eColor = COL_LIGHTBLUE );
32 : };
33 :
34 : inline DbgRect::DbgRect( OutputDevice *pOutDev, const Rectangle &rRect,
35 : const ColorData eColor )
36 : :pOut( pOutDev )
37 : {
38 : if( pOut )
39 : {
40 : pOut->Push( PushFlags::FILLCOLOR|PushFlags::LINECOLOR );
41 : pOut->SetLineColor( eColor );
42 : pOut->SetFillColor();
43 : pOut->DrawRect( rRect );
44 : pOut->Pop();
45 : }
46 : }
47 :
48 : #endif
49 :
50 : /* The SWLayVout class manages the virtual output devices.
51 : * RootFrm has a static member of this class which is created in _FrmInit
52 : * and destroyed in _FrmFinit.
53 : * */
54 :
55 0 : bool SwRootFrm::FlushVout()
56 : {
57 0 : if( SwRootFrm::mpVout->IsFlushable() )
58 : {
59 0 : SwRootFrm::mpVout->_Flush();
60 0 : return true;
61 : }
62 0 : return false;
63 : }
64 :
65 7668 : bool SwRootFrm::HasSameRect( const SwRect& rRect )
66 : {
67 7668 : if( SwRootFrm::mpVout->IsFlushable() )
68 0 : return ( rRect == SwRootFrm::mpVout->GetOrgRect() );
69 7668 : return false;
70 : }
71 :
72 : /** method to set mapping/pixel offset for virtual output device
73 :
74 : OD 12.11.2002 #96272# - method implements two solutions for the mapping of
75 : the virtual output device:
76 : The old solution set the origin of the mapping mode, which will be used in
77 : the virtual output device. This causes several paint errors, because of the
78 : different roundings in the virtual output device and the original output device.
79 : The new solution avoids the rounding differences between virtual and original
80 : output device by setting a pixel offset at the virtual output device.
81 : A define controls, which solution is used, in order to switch in escalation
82 : back to old solution.
83 :
84 : @param _pOrgOutDev
85 : input parameter - constant instance of the original output device, for which
86 : the virtual output device is created.
87 :
88 : @param _pVirDev
89 : input/output parameter - instance of the virtual output device.
90 :
91 : @param _pMapMode
92 : input/output parameter - instance of the mapping mode, which will be set
93 : at the virtual output device.
94 :
95 : @param _rNewOrigin
96 : input parameter - constant instance of the origin, which will be used in
97 : the virtual output device
98 : */
99 : // define to control, if old or new solution for setting the mapping for
100 : // an virtual output device is used.
101 0 : void SetMappingForVirtDev( const Point& _rNewOrigin,
102 : MapMode* ,
103 : const vcl::RenderContext* _pOrgOutDev,
104 : vcl::RenderContext* _pVirDev )
105 : {
106 : // new solution: set pixel offset at virtual output device
107 0 : Point aPixelOffset = _pOrgOutDev->LogicToPixel( _rNewOrigin );
108 0 : _pVirDev->SetPixelOffset( Size( -aPixelOffset.X(), -aPixelOffset.Y() ) );
109 0 : }
110 :
111 : // rSize must be pixel coordinates!
112 0 : bool SwLayVout::DoesFit( const Size &rNew )
113 : {
114 0 : if( rNew.Height() > VIRTUALHEIGHT )
115 0 : return false;
116 0 : if( rNew.Width() <= 0 || rNew.Height() <= 0 )
117 0 : return false;
118 0 : if( rNew.Width() <= aSize.Width() )
119 0 : return true;
120 0 : if( !pVirDev )
121 : {
122 0 : pVirDev = VclPtr<VirtualDevice>::Create();
123 0 : pVirDev->SetLineColor();
124 0 : if( pOut )
125 : {
126 0 : if( pVirDev->GetFillColor() != pOut->GetFillColor() )
127 0 : pVirDev->SetFillColor( pOut->GetFillColor() );
128 : }
129 : }
130 :
131 0 : if( rNew.Width() > aSize.Width() )
132 : {
133 0 : aSize.Width() = rNew.Width();
134 0 : if( !pVirDev->SetOutputSizePixel( aSize ) )
135 : {
136 0 : pVirDev.disposeAndClear();
137 0 : aSize.Width() = 0;
138 0 : return false;
139 : }
140 : }
141 0 : return true;
142 : }
143 :
144 : /// OD 27.09.2002 #103636# - change 2nd parameter <rRect> - no longer <const>
145 : /// in order to return value of class member variable <aRect>, if virtual
146 : /// output is used.
147 : /// <aRect> contains the rectangle that represents the area the virtual
148 : /// output device is used for and that is flushed at the end.
149 0 : void SwLayVout::Enter( SwViewShell *pShell, SwRect &rRect, bool bOn )
150 : {
151 0 : Flush();
152 :
153 : #ifdef DBG_UTIL
154 : if( pShell->GetViewOptions()->IsTest3() )
155 : {
156 : ++nCount;
157 : return;
158 : }
159 : #endif
160 :
161 0 : bOn = bOn && !nCount && rRect.HasArea() && pShell->GetWin();
162 0 : ++nCount;
163 0 : if( bOn )
164 : {
165 0 : pSh = pShell;
166 0 : pOut = NULL;
167 0 : OutputDevice *pO = pSh->GetOut();
168 : // We don't cheat on printers or virtual output devices...
169 0 : if( OUTDEV_WINDOW != pO->GetOutDevType() )
170 0 : return;
171 :
172 0 : pOut = pO;
173 0 : Size aPixSz( pOut->PixelToLogic( Size( 1,1 )) );
174 0 : SwRect aTmp( rRect );
175 0 : aTmp.SSize().Width() += aPixSz.Width()/2 + 1;
176 0 : aTmp.SSize().Height()+= aPixSz.Height()/2 + 1;
177 0 : Rectangle aTmpRect( pO->LogicToPixel( aTmp.SVRect() ) );
178 :
179 : OSL_ENSURE( !pSh->GetWin()->IsReallyVisible() ||
180 : aTmpRect.GetWidth() <= pSh->GetWin()->GetOutputSizePixel().Width() + 2,
181 : "Paintwidth bigger than visarea?" );
182 : // Does the rectangle fit in our buffer?
183 0 : if( !DoesFit( aTmpRect.GetSize() ) )
184 : {
185 0 : pOut = NULL;
186 0 : return;
187 : }
188 :
189 0 : aRect = SwRect( pO->PixelToLogic( aTmpRect ) );
190 :
191 0 : SetOutDev( pSh, pVirDev );
192 :
193 0 : if( pVirDev->GetFillColor() != pOut->GetFillColor() )
194 0 : pVirDev->SetFillColor( pOut->GetFillColor() );
195 :
196 0 : MapMode aMapMode( pOut->GetMapMode() );
197 : // OD 12.11.2002 #96272# - use method to set mapping
198 : //aMapMode.SetOrigin( Point(0,0) - aRect.Pos() );
199 0 : ::SetMappingForVirtDev( aRect.Pos(), &aMapMode, pOut, pVirDev );
200 :
201 0 : if( aMapMode != pVirDev->GetMapMode() )
202 0 : pVirDev->SetMapMode( aMapMode );
203 :
204 : /// OD 27.09.2002 #103636# - set value of parameter <rRect>
205 0 : rRect = aRect;
206 : }
207 : }
208 :
209 0 : void SwLayVout::_Flush()
210 : {
211 : OSL_ENSURE( pVirDev, "SwLayVout::DrawOut: nothing left Toulouse" );
212 0 : pOut->DrawOutDev( aRect.Pos(), aRect.SSize(),
213 0 : aRect.Pos(), aRect.SSize(), *pVirDev );
214 0 : SetOutDev( pSh, pOut );
215 0 : pOut = NULL;
216 177 : }
217 :
218 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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