xref: /trunk/main/svx/source/svdraw/impgrfll.cxx (revision 4d196ef4ae78ff6471489db4943d00e5f0bbde43)
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svx.hxx"
26 #include <svx/rectenum.hxx>
27 #include <vcl/svapp.hxx>
28 #include <vcl/outdev.hxx>
29 #include <vcl/bitmap.hxx>
30 
31 
ImpCalcBmpFillSizes(Size & rStartOffset,Size & rBmpOutputSize,const Rectangle & rOutputRect,const MapMode & rOutputMapMode,const Bitmap & rFillBitmap,const Size & rBmpSize,const Size & rBmpPerCent,const Size & rBmpOffPerCent,sal_Bool bBmpLogSize,sal_Bool bBmpTile,sal_Bool bBmpStretch,RECT_POINT eBmpRectPoint)32 void ImpCalcBmpFillSizes( Size&             rStartOffset,
33                           Size&             rBmpOutputSize,
34                           const Rectangle&  rOutputRect,
35                           const MapMode&    rOutputMapMode,
36                           const Bitmap&     rFillBitmap,
37                           const Size&       rBmpSize,
38                           const Size&       rBmpPerCent,
39                           const Size&       rBmpOffPerCent,
40                           sal_Bool          bBmpLogSize,
41                           sal_Bool          bBmpTile,
42                           sal_Bool          bBmpStretch,
43                           RECT_POINT        eBmpRectPoint )
44 {
45     sal_Bool    bOriginalSize = sal_False, bScaleSize = sal_False;
46 
47     // Falls keine Groessen gegeben sind ( z.B. alte Dokumente )
48     // berechnen wir uns die Groesse selber aus der Bitmap
49     // ==> altes Verhalten;
50     // wenn nur eine Groesse gegeben ist, wird die andere
51     // Groesse angepasst berechnet
52     if( bBmpLogSize )
53     {
54         if( !rBmpSize.Width() && !rBmpSize.Height() )
55             bOriginalSize = sal_True;
56         else if( !rBmpSize.Width() || !rBmpSize.Height() )
57             bScaleSize = sal_True;
58     }
59     else
60     {
61         if( !rBmpPerCent.Width() && !rBmpPerCent.Height() )
62             bOriginalSize = sal_True;
63         else if( !rBmpPerCent.Width() || !rBmpPerCent.Height() )
64             bScaleSize = sal_True;
65     }
66 
67     // entweder Originalgroesse oder angepasste Groesse
68     if( bOriginalSize || bScaleSize )
69     {
70         MapMode aBmpPrefMapMode( rFillBitmap.GetPrefMapMode() );
71         Size    aBmpPrefSize( rFillBitmap.GetPrefSize() );
72 
73         // Falls keine gesetzt ist, nehmen wir Pixel
74         if( !aBmpPrefSize.Width() || !aBmpPrefSize.Height() )
75         {
76             aBmpPrefSize = rFillBitmap.GetSizePixel();
77             aBmpPrefMapMode = MAP_PIXEL;
78         }
79 
80         if( bOriginalSize )
81         {
82             if( MAP_PIXEL == aBmpPrefMapMode.GetMapUnit() )
83                 rBmpOutputSize = Application::GetDefaultDevice()->PixelToLogic( aBmpPrefSize, rOutputMapMode );
84             else
85                 rBmpOutputSize = OutputDevice::LogicToLogic( aBmpPrefSize, aBmpPrefMapMode, rOutputMapMode );
86         }
87         else
88         {
89             if( bBmpLogSize )
90             {
91                 rBmpOutputSize = rBmpSize;
92 
93                 if( !rBmpSize.Width() )
94                     rBmpOutputSize.Width() = basegfx::fround( (double) rBmpSize.Height() * aBmpPrefSize.Width() / aBmpPrefSize.Height() );
95                 else
96                     rBmpOutputSize.Height() = basegfx::fround( (double) rBmpSize.Width() * aBmpPrefSize.Height() / aBmpPrefSize.Width() );
97             }
98             else
99             {
100                 if( !rBmpPerCent.Width() )
101                 {
102                     rBmpOutputSize.Height() = basegfx::fround( (double) rOutputRect.GetHeight() * rBmpPerCent.Height() / 100. );
103                     rBmpOutputSize.Width() = basegfx::fround( (double) rBmpOutputSize.Height() * aBmpPrefSize.Width() / aBmpPrefSize.Height() );
104                 }
105                 else
106                 {
107                     rBmpOutputSize.Width() = basegfx::fround( (double) rOutputRect.GetWidth() * rBmpPerCent.Width() / 100. );
108                     rBmpOutputSize.Height() = basegfx::fround( (double) rBmpOutputSize.Width() * aBmpPrefSize.Height() / aBmpPrefSize.Width() );
109                 }
110             }
111         }
112     }
113     // ansonsten koennen wir die Groesse leicht selber berechnen
114     else
115     {
116         if( bBmpLogSize )
117             rBmpOutputSize = rBmpSize;
118         else
119         {
120             rBmpOutputSize.Width() = basegfx::fround( (double) rOutputRect.GetWidth() * rBmpPerCent.Width() / 100. );
121             rBmpOutputSize.Height() = basegfx::fround( (double) rOutputRect.GetHeight() * rBmpPerCent.Height() / 100. );
122         }
123     }
124 
125     // nur bei Kachelung die anderen Positionen berechnen
126     if( bBmpTile )
127     {
128         Point aStartPoint;
129 
130         // Grundposition der ersten Kachel berechen;
131         // Diese Position wird spaeter zur Berechnung der absoluten
132         // Startposition links oberhalb des Objektes benutzt
133         switch( eBmpRectPoint )
134         {
135             case( RP_MT ):
136             {
137                 aStartPoint.X() = rOutputRect.Left() + ( ( rOutputRect.GetWidth() - rBmpOutputSize.Width() ) >> 1 );
138                 aStartPoint.Y() = rOutputRect.Top();
139             }
140             break;
141 
142             case( RP_RT ):
143             {
144                 aStartPoint.X() = rOutputRect.Right() - rBmpOutputSize.Width();
145                 aStartPoint.Y() = rOutputRect.Top();
146             }
147             break;
148 
149             case( RP_LM ):
150             {
151                 aStartPoint.X() = rOutputRect.Left();
152                 aStartPoint.Y() = rOutputRect.Top() + ( ( rOutputRect.GetHeight() - rBmpOutputSize.Height() ) >> 1  );
153             }
154             break;
155 
156             case( RP_MM ):
157             {
158                 aStartPoint.X() = rOutputRect.Left() + ( ( rOutputRect.GetWidth() - rBmpOutputSize.Width() ) >> 1 );
159                 aStartPoint.Y() = rOutputRect.Top() + ( ( rOutputRect.GetHeight() - rBmpOutputSize.Height() ) >> 1 );
160             }
161             break;
162 
163             case( RP_RM ):
164             {
165                 aStartPoint.X() = rOutputRect.Right() - rBmpOutputSize.Width();
166                 aStartPoint.Y() = rOutputRect.Top() + ( ( rOutputRect.GetHeight() - rBmpOutputSize.Height() ) >> 1 );
167             }
168             break;
169 
170             case( RP_LB ):
171             {
172                 aStartPoint.X() = rOutputRect.Left();
173                 aStartPoint.Y() = rOutputRect.Bottom() - rBmpOutputSize.Height();
174             }
175             break;
176 
177             case( RP_MB ):
178             {
179                 aStartPoint.X() = rOutputRect.Left() + ( ( rOutputRect.GetWidth() - rBmpOutputSize.Width() ) >> 1 );
180                 aStartPoint.Y() = rOutputRect.Bottom() - rBmpOutputSize.Height();
181             }
182             break;
183 
184             case( RP_RB ):
185             {
186                 aStartPoint.X() = rOutputRect.Right() - rBmpOutputSize.Width();
187                 aStartPoint.Y() = rOutputRect.Bottom() - rBmpOutputSize.Height();
188             }
189             break;
190 
191             // default linke obere Ecke
192             default:
193                 aStartPoint = rOutputRect.TopLeft();
194             break;
195         }
196 
197         // X- oder Y-Positionsoffset beruecksichtigen
198         if( rBmpOffPerCent.Width() )
199             aStartPoint.X() += ( rBmpOutputSize.Width() * rBmpOffPerCent.Width() / 100 );
200 
201         if( rBmpOffPerCent.Height() )
202             aStartPoint.Y() += ( rBmpOutputSize.Height() * rBmpOffPerCent.Height() / 100 );
203 
204         // echten Startpunkt berechnen (links oben)
205         if( rBmpOutputSize.Width() && rBmpOutputSize.Height() )
206         {
207             const long nDiffX = aStartPoint.X() - rOutputRect.Left();
208             const long nDiffY = aStartPoint.Y() - rOutputRect.Top();
209 
210             if ( nDiffX )
211             {
212                 long nCount = nDiffX / rBmpOutputSize.Width() + 1;
213 
214                 if ( rBmpOffPerCent.Height() && ( nCount & 1L ) )
215                     nCount++;
216 
217                 aStartPoint.X() -= ( nCount * rBmpOutputSize.Width() );
218             }
219 
220             if ( nDiffY )
221             {
222                 long nCount = nDiffY / rBmpOutputSize.Height() + 1;
223 
224                 if ( rBmpOffPerCent.Width() && ( nCount & 1L ) )
225                     nCount++;
226 
227                 aStartPoint.Y() -= ( nCount * rBmpOutputSize.Height() );
228             }
229         }
230 
231         rStartOffset = Size( aStartPoint.X() - rOutputRect.Left(),
232                              aStartPoint.Y() - rOutputRect.Top() );
233     }
234     else
235     {
236         if( bBmpStretch )
237         {
238             rStartOffset = Size(0, 0);
239             rBmpOutputSize = rOutputRect.GetSize();
240         }
241         else
242         {
243             rStartOffset = Size( ( rOutputRect.GetWidth() - rBmpOutputSize.Width() ) >> 1,
244                                  ( rOutputRect.GetHeight() - rBmpOutputSize.Height() ) >> 1 );
245         }
246     }
247 }
248 
249 /* vim: set noet sw=4 ts=4: */
250