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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
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7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
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11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
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14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_vcl.hxx"
26
27 #include <vcl/event.hxx>
28 #include <vcl/imgctrl.hxx>
29 #include <tools/rcid.h>
30
31 #include <com/sun/star/awt/ImageScaleMode.hdl>
32
33 namespace ImageScaleMode = ::com::sun::star::awt::ImageScaleMode;
34
35 // -----------------------------------------------------------------------
36
ImageControl(Window * pParent,WinBits nStyle)37 ImageControl::ImageControl( Window* pParent, WinBits nStyle )
38 :FixedImage( pParent, nStyle )
39 ,mnScaleMode( ImageScaleMode::ANISOTROPIC )
40 {
41 }
42
43 // -----------------------------------------------------------------------
44
ImageControl(Window * pParent,const ResId & rResId)45 ImageControl::ImageControl( Window* pParent, const ResId& rResId )
46 :FixedImage( pParent, rResId )
47 ,mnScaleMode( ImageScaleMode::ANISOTROPIC )
48 {
49 }
50
51 // -----------------------------------------------------------------------
52
SetScaleMode(const::sal_Int16 _nMode)53 void ImageControl::SetScaleMode( const ::sal_Int16 _nMode )
54 {
55 if ( _nMode != mnScaleMode )
56 {
57 mnScaleMode = _nMode;
58 Invalidate();
59 }
60 }
61
62 // -----------------------------------------------------------------------
63
Resize()64 void ImageControl::Resize()
65 {
66 Invalidate();
67 }
68
69 // -----------------------------------------------------------------------
70 namespace
71 {
lcl_calcPaintSize(const Rectangle & _rPaintRect,const Size & _rBitmapSize)72 static Size lcl_calcPaintSize( const Rectangle& _rPaintRect, const Size& _rBitmapSize )
73 {
74 const Size aPaintSize = _rPaintRect.GetSize();
75
76 const double nRatioX = 1.0 * aPaintSize.Width() / _rBitmapSize.Width();
77 const double nRatioY = 1.0 * aPaintSize.Height() / _rBitmapSize.Height();
78 const double nRatioMin = ::std::min( nRatioX, nRatioY );
79
80 return Size( long( _rBitmapSize.Width() * nRatioMin ), long( _rBitmapSize.Height() * nRatioMin ) );
81 }
82
lcl_centerWithin(const Rectangle & _rArea,const Size & _rObjectSize)83 static Point lcl_centerWithin( const Rectangle& _rArea, const Size& _rObjectSize )
84 {
85 Point aPos( _rArea.TopLeft() );
86 aPos.X() += ( _rArea.GetWidth() - _rObjectSize.Width() ) / 2;
87 aPos.Y() += ( _rArea.GetHeight() - _rObjectSize.Height() ) / 2;
88 return aPos;
89 }
90 }
91
92 // -----------------------------------------------------------------------
93
ImplDraw(OutputDevice & rDev,sal_uLong nDrawFlags,const Point & rPos,const Size & rSize) const94 void ImageControl::ImplDraw( OutputDevice& rDev, sal_uLong nDrawFlags, const Point& rPos, const Size& rSize ) const
95 {
96 sal_uInt16 nStyle = 0;
97 if ( !(nDrawFlags & WINDOW_DRAW_NODISABLE) )
98 {
99 if ( !IsEnabled() )
100 nStyle |= IMAGE_DRAW_DISABLE;
101 }
102
103 const Image& rImage( GetModeImage( BMP_COLOR_NORMAL ) );
104 const Image& rImageHC( GetModeImage( BMP_COLOR_HIGHCONTRAST ) );
105
106 const Image* pImage = &rImage;
107 if ( !!rImageHC && GetSettings().GetStyleSettings().GetHighContrastMode() )
108 pImage = &rImageHC;
109
110 const Rectangle aDrawRect( rPos, rSize );
111 if ( !*pImage )
112 {
113 String sText( GetText() );
114 if ( !sText.Len() )
115 return;
116
117 WinBits nWinStyle = GetStyle();
118 sal_uInt16 nTextStyle = FixedText::ImplGetTextStyle( nWinStyle );
119 if ( !(nDrawFlags & WINDOW_DRAW_NODISABLE) )
120 if ( !IsEnabled() )
121 nTextStyle |= TEXT_DRAW_DISABLE;
122
123 rDev.DrawText( aDrawRect, sText, nTextStyle );
124 return;
125 }
126
127 const Size& rBitmapSize = pImage->GetSizePixel();
128
129 switch ( mnScaleMode )
130 {
131 case ImageScaleMode::NONE:
132 {
133 rDev.DrawImage( lcl_centerWithin( aDrawRect, rBitmapSize ), *pImage, nStyle );
134 }
135 break;
136
137 case ImageScaleMode::ISOTROPIC:
138 {
139 const Size aPaintSize = lcl_calcPaintSize( aDrawRect, rBitmapSize );
140 rDev.DrawImage(
141 lcl_centerWithin( aDrawRect, aPaintSize ),
142 aPaintSize,
143 *pImage, nStyle );
144 }
145 break;
146
147 case ImageScaleMode::ANISOTROPIC:
148 {
149 rDev.DrawImage(
150 aDrawRect.TopLeft(),
151 aDrawRect.GetSize(),
152 *pImage, nStyle );
153 }
154 break;
155
156 default:
157 OSL_ENSURE( false, "ImageControl::ImplDraw: unhandled scale mode!" );
158 break;
159
160 } // switch ( mnScaleMode )
161 }
162
163 // -----------------------------------------------------------------------
164
Paint(const Rectangle &)165 void ImageControl::Paint( const Rectangle& /*rRect*/ )
166 {
167 ImplDraw( *this, 0, Point(), GetOutputSizePixel() );
168
169 if( HasFocus() )
170 {
171 Window *pWin = GetWindow( WINDOW_BORDER );
172
173 sal_Bool bFlat = (GetBorderStyle() == 2);
174 Rectangle aRect( Point(0,0), pWin->GetOutputSizePixel() );
175 Color oldLineCol = pWin->GetLineColor();
176 Color oldFillCol = pWin->GetFillColor();
177 pWin->SetFillColor();
178 pWin->SetLineColor( bFlat ? COL_WHITE : COL_BLACK );
179 pWin->DrawRect( aRect );
180 aRect.nLeft++;
181 aRect.nRight--;
182 aRect.nTop++;
183 aRect.nBottom--;
184 pWin->SetLineColor( bFlat ? COL_BLACK : COL_WHITE );
185 pWin->DrawRect( aRect );
186 pWin->SetLineColor( oldLineCol );
187 pWin->SetFillColor( oldFillCol );
188 }
189 }
190
191 // -----------------------------------------------------------------------
Draw(OutputDevice * pDev,const Point & rPos,const Size & rSize,sal_uLong nFlags)192 void ImageControl::Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong nFlags )
193 {
194 const Point aPos = pDev->LogicToPixel( rPos );
195 const Size aSize = pDev->LogicToPixel( rSize );
196 Rectangle aRect( aPos, aSize );
197
198 pDev->Push();
199 pDev->SetMapMode();
200
201 // Border
202 if ( !(nFlags & WINDOW_DRAW_NOBORDER) && (GetStyle() & WB_BORDER) )
203 {
204 ImplDrawFrame( pDev, aRect );
205 }
206 pDev->IntersectClipRegion( aRect );
207 ImplDraw( *pDev, nFlags, aRect.TopLeft(), aRect.GetSize() );
208
209 pDev->Pop();
210 }
211
212 // -----------------------------------------------------------------------
213
GetFocus()214 void ImageControl::GetFocus()
215 {
216 FixedImage::GetFocus();
217 GetWindow( WINDOW_BORDER )->Invalidate();
218 }
219
220 // -----------------------------------------------------------------------
221
LoseFocus()222 void ImageControl::LoseFocus()
223 {
224 FixedImage::GetFocus();
225 GetWindow( WINDOW_BORDER )->Invalidate();
226 }
227
228