1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_fpicker.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski //------------------------------------------------------------------------
28*b1cdbd2cSJim Jagielski // includes
29*b1cdbd2cSJim Jagielski //------------------------------------------------------------------------
30*b1cdbd2cSJim Jagielski
31*b1cdbd2cSJim Jagielski #include <tchar.h>
32*b1cdbd2cSJim Jagielski #include "PreviewCtrl.hxx"
33*b1cdbd2cSJim Jagielski #include <osl/diagnose.h>
34*b1cdbd2cSJim Jagielski
35*b1cdbd2cSJim Jagielski #if defined _MSC_VER
36*b1cdbd2cSJim Jagielski #pragma warning(push, 1)
37*b1cdbd2cSJim Jagielski #endif
38*b1cdbd2cSJim Jagielski #include <windows.h>
39*b1cdbd2cSJim Jagielski #if defined _MSC_VER
40*b1cdbd2cSJim Jagielski #pragma warning(pop)
41*b1cdbd2cSJim Jagielski #endif
42*b1cdbd2cSJim Jagielski #include <ocidl.h>
43*b1cdbd2cSJim Jagielski #include <olectl.h>
44*b1cdbd2cSJim Jagielski
45*b1cdbd2cSJim Jagielski //------------------------------------------------------------------------
46*b1cdbd2cSJim Jagielski // defines
47*b1cdbd2cSJim Jagielski //------------------------------------------------------------------------
48*b1cdbd2cSJim Jagielski
49*b1cdbd2cSJim Jagielski #define PREVIEWWND_CLASS_NAME TEXT("PreviewWnd###")
50*b1cdbd2cSJim Jagielski
51*b1cdbd2cSJim Jagielski #define HIMETRIC_INCH 2540
52*b1cdbd2cSJim Jagielski
53*b1cdbd2cSJim Jagielski // means 3 pixel left and 3 pixel right
54*b1cdbd2cSJim Jagielski #define HORZ_BODER_SPACE 6
55*b1cdbd2cSJim Jagielski
56*b1cdbd2cSJim Jagielski // means 3 pixel top and 3 pixel bottom
57*b1cdbd2cSJim Jagielski #define VERT_BORDER_SPACE 6
58*b1cdbd2cSJim Jagielski
59*b1cdbd2cSJim Jagielski //---------------------------------------------------
60*b1cdbd2cSJim Jagielski // static member initialization
61*b1cdbd2cSJim Jagielski //---------------------------------------------------
62*b1cdbd2cSJim Jagielski
63*b1cdbd2cSJim Jagielski CFilePreview* CFilePreview::s_FilePreviewInst = NULL;
64*b1cdbd2cSJim Jagielski CFilePreview::FILEPREVIEW_SINGLETON_DESTROYER_T CFilePreview::s_SingletonDestroyer;
65*b1cdbd2cSJim Jagielski
66*b1cdbd2cSJim Jagielski //---------------------------------------------------
67*b1cdbd2cSJim Jagielski // some useful helper functions
68*b1cdbd2cSJim Jagielski //---------------------------------------------------
69*b1cdbd2cSJim Jagielski
70*b1cdbd2cSJim Jagielski namespace // private
71*b1cdbd2cSJim Jagielski {
72*b1cdbd2cSJim Jagielski class CPreviewException
73*b1cdbd2cSJim Jagielski {
74*b1cdbd2cSJim Jagielski // used when registering or creation
75*b1cdbd2cSJim Jagielski // of the preview window failed
76*b1cdbd2cSJim Jagielski };
77*b1cdbd2cSJim Jagielski
78*b1cdbd2cSJim Jagielski //------------------------------------------------------------
79*b1cdbd2cSJim Jagielski //
80*b1cdbd2cSJim Jagielski //------------------------------------------------------------
81*b1cdbd2cSJim Jagielski
82*b1cdbd2cSJim Jagielski inline
SubDiv(sal_Int32 nNumber,sal_Int32 nMinuend,sal_Int32 nDenominator)83*b1cdbd2cSJim Jagielski sal_Int32 SubDiv( sal_Int32 nNumber, sal_Int32 nMinuend, sal_Int32 nDenominator )
84*b1cdbd2cSJim Jagielski {
85*b1cdbd2cSJim Jagielski return ( static_cast<sal_Int32>( ( nNumber - nMinuend ) / nDenominator ) );
86*b1cdbd2cSJim Jagielski }
87*b1cdbd2cSJim Jagielski
88*b1cdbd2cSJim Jagielski //------------------------------------------------------------
89*b1cdbd2cSJim Jagielski // convert himetric to pixel
90*b1cdbd2cSJim Jagielski //------------------------------------------------------------
91*b1cdbd2cSJim Jagielski
92*b1cdbd2cSJim Jagielski inline
Himetric2Pixel(HDC hDC,sal_Int32 hmSize,sal_Int32 nIndex)93*b1cdbd2cSJim Jagielski sal_Int32 Himetric2Pixel( HDC hDC, sal_Int32 hmSize, sal_Int32 nIndex )
94*b1cdbd2cSJim Jagielski {
95*b1cdbd2cSJim Jagielski return MulDiv( hmSize, GetDeviceCaps( hDC, nIndex), HIMETRIC_INCH );
96*b1cdbd2cSJim Jagielski }
97*b1cdbd2cSJim Jagielski
98*b1cdbd2cSJim Jagielski //------------------------------------------------------------
99*b1cdbd2cSJim Jagielski //
100*b1cdbd2cSJim Jagielski //------------------------------------------------------------
101*b1cdbd2cSJim Jagielski
102*b1cdbd2cSJim Jagielski inline
_getWidthRect(const RECT & aRect)103*b1cdbd2cSJim Jagielski sal_uInt32 _getWidthRect( const RECT& aRect )
104*b1cdbd2cSJim Jagielski {
105*b1cdbd2cSJim Jagielski return ( aRect.right - aRect.left );
106*b1cdbd2cSJim Jagielski }
107*b1cdbd2cSJim Jagielski
108*b1cdbd2cSJim Jagielski //------------------------------------------------------------
109*b1cdbd2cSJim Jagielski //
110*b1cdbd2cSJim Jagielski //------------------------------------------------------------
111*b1cdbd2cSJim Jagielski
112*b1cdbd2cSJim Jagielski inline
_getHeightRect(const RECT & aRect)113*b1cdbd2cSJim Jagielski sal_uInt32 _getHeightRect( const RECT& aRect )
114*b1cdbd2cSJim Jagielski {
115*b1cdbd2cSJim Jagielski return ( aRect.bottom - aRect.top );
116*b1cdbd2cSJim Jagielski }
117*b1cdbd2cSJim Jagielski
118*b1cdbd2cSJim Jagielski //------------------------------------------------------------
119*b1cdbd2cSJim Jagielski // calc the upper left corner so that a given window will be
120*b1cdbd2cSJim Jagielski // displayed centered within the given window
121*b1cdbd2cSJim Jagielski //------------------------------------------------------------
122*b1cdbd2cSJim Jagielski
123*b1cdbd2cSJim Jagielski inline
_calcULCorner(HWND hwnd,const CDimension & aPicSize)124*b1cdbd2cSJim Jagielski POINT _calcULCorner( HWND hwnd, const CDimension& aPicSize )
125*b1cdbd2cSJim Jagielski {
126*b1cdbd2cSJim Jagielski RECT rect;
127*b1cdbd2cSJim Jagielski GetClientRect( hwnd, &rect );
128*b1cdbd2cSJim Jagielski
129*b1cdbd2cSJim Jagielski sal_Int32 nWidthWnd = _getWidthRect( rect );
130*b1cdbd2cSJim Jagielski sal_Int32 nHeightWnd = _getHeightRect( rect );
131*b1cdbd2cSJim Jagielski
132*b1cdbd2cSJim Jagielski POINT ulCorner;
133*b1cdbd2cSJim Jagielski ulCorner.x = SubDiv( nWidthWnd, aPicSize.m_cx, 2 );
134*b1cdbd2cSJim Jagielski ulCorner.y = SubDiv( nHeightWnd, aPicSize.m_cy, 2 );
135*b1cdbd2cSJim Jagielski
136*b1cdbd2cSJim Jagielski return ulCorner;
137*b1cdbd2cSJim Jagielski }
138*b1cdbd2cSJim Jagielski
139*b1cdbd2cSJim Jagielski //------------------------------------------------------------
140*b1cdbd2cSJim Jagielski // test if a picture with the given dimensions fits into an
141*b1cdbd2cSJim Jagielski // arbitrary window
142*b1cdbd2cSJim Jagielski // we expect the width and height to be in pixel
143*b1cdbd2cSJim Jagielski //------------------------------------------------------------
144*b1cdbd2cSJim Jagielski
145*b1cdbd2cSJim Jagielski inline
_pictureSizeFitsWindowSize(HWND hwnd,const CDimension & aPicSize)146*b1cdbd2cSJim Jagielski sal_Bool _pictureSizeFitsWindowSize( HWND hwnd, const CDimension& aPicSize )
147*b1cdbd2cSJim Jagielski {
148*b1cdbd2cSJim Jagielski RECT rect;
149*b1cdbd2cSJim Jagielski GetClientRect( hwnd, &rect );
150*b1cdbd2cSJim Jagielski
151*b1cdbd2cSJim Jagielski sal_Int32 nWidthWnd = _getWidthRect( rect );
152*b1cdbd2cSJim Jagielski sal_Int32 nHeightWnd = _getHeightRect( rect );
153*b1cdbd2cSJim Jagielski
154*b1cdbd2cSJim Jagielski return ( ( ( nWidthWnd - HORZ_BODER_SPACE ) >= aPicSize.m_cx ) &&
155*b1cdbd2cSJim Jagielski ( ( nHeightWnd - VERT_BORDER_SPACE ) >= aPicSize.m_cy ) );
156*b1cdbd2cSJim Jagielski }
157*b1cdbd2cSJim Jagielski
158*b1cdbd2cSJim Jagielski //------------------------------------------------------------
159*b1cdbd2cSJim Jagielski // calc the dimemsions so that a given picture fits into a
160*b1cdbd2cSJim Jagielski // given window, if the picture fits into the given window
161*b1cdbd2cSJim Jagielski // the original CDimension will be returned
162*b1cdbd2cSJim Jagielski //------------------------------------------------------------
163*b1cdbd2cSJim Jagielski
164*b1cdbd2cSJim Jagielski inline
_scalePictureSize(HWND hwnd,const CDimension & aPicSize)165*b1cdbd2cSJim Jagielski CDimension _scalePictureSize( HWND hwnd, const CDimension& aPicSize )
166*b1cdbd2cSJim Jagielski {
167*b1cdbd2cSJim Jagielski CDimension scaledPicSize = aPicSize;
168*b1cdbd2cSJim Jagielski
169*b1cdbd2cSJim Jagielski if ( !_pictureSizeFitsWindowSize( hwnd, aPicSize ) )
170*b1cdbd2cSJim Jagielski {
171*b1cdbd2cSJim Jagielski RECT rect;
172*b1cdbd2cSJim Jagielski GetClientRect( hwnd, &rect );
173*b1cdbd2cSJim Jagielski
174*b1cdbd2cSJim Jagielski // the dimensions of the preview wnd are not equal
175*b1cdbd2cSJim Jagielski // that's why we equalize it
176*b1cdbd2cSJim Jagielski sal_Int32 nHeightWnd = _getHeightRect( rect ) - VERT_BORDER_SPACE;
177*b1cdbd2cSJim Jagielski sal_Int32 nWidthWnd = nHeightWnd;
178*b1cdbd2cSJim Jagielski
179*b1cdbd2cSJim Jagielski if ( aPicSize.m_cx >= aPicSize.m_cy )
180*b1cdbd2cSJim Jagielski {
181*b1cdbd2cSJim Jagielski scaledPicSize.m_cx = nWidthWnd;
182*b1cdbd2cSJim Jagielski scaledPicSize.m_cy =
183*b1cdbd2cSJim Jagielski static_cast< sal_Int32 >(
184*b1cdbd2cSJim Jagielski aPicSize.m_cy * nWidthWnd / aPicSize.m_cx );
185*b1cdbd2cSJim Jagielski }
186*b1cdbd2cSJim Jagielski else
187*b1cdbd2cSJim Jagielski {
188*b1cdbd2cSJim Jagielski scaledPicSize.m_cx =
189*b1cdbd2cSJim Jagielski static_cast< sal_Int32 >(
190*b1cdbd2cSJim Jagielski aPicSize.m_cx * nHeightWnd / aPicSize.m_cy );
191*b1cdbd2cSJim Jagielski scaledPicSize.m_cy = nHeightWnd;
192*b1cdbd2cSJim Jagielski }
193*b1cdbd2cSJim Jagielski }
194*b1cdbd2cSJim Jagielski
195*b1cdbd2cSJim Jagielski return scaledPicSize;
196*b1cdbd2cSJim Jagielski }
197*b1cdbd2cSJim Jagielski
198*b1cdbd2cSJim Jagielski } // end namespace
199*b1cdbd2cSJim Jagielski
200*b1cdbd2cSJim Jagielski
201*b1cdbd2cSJim Jagielski //---------------------------------------------------
202*b1cdbd2cSJim Jagielski // to ensure only one instance (singleton)
203*b1cdbd2cSJim Jagielski //---------------------------------------------------
204*b1cdbd2cSJim Jagielski
createInstance(HWND aParent,POINT ulCorner,const CDimension & aSize,HINSTANCE hInstance,sal_Bool bShow,sal_Bool bEnabled)205*b1cdbd2cSJim Jagielski CFilePreview* CFilePreview::createInstance(
206*b1cdbd2cSJim Jagielski HWND aParent,
207*b1cdbd2cSJim Jagielski POINT ulCorner,
208*b1cdbd2cSJim Jagielski const CDimension& aSize,
209*b1cdbd2cSJim Jagielski HINSTANCE hInstance,
210*b1cdbd2cSJim Jagielski sal_Bool bShow,
211*b1cdbd2cSJim Jagielski sal_Bool bEnabled )
212*b1cdbd2cSJim Jagielski {
213*b1cdbd2cSJim Jagielski if ( !s_FilePreviewInst )
214*b1cdbd2cSJim Jagielski {
215*b1cdbd2cSJim Jagielski try
216*b1cdbd2cSJim Jagielski {
217*b1cdbd2cSJim Jagielski s_FilePreviewInst = new CFilePreview(
218*b1cdbd2cSJim Jagielski aParent, ulCorner, aSize, hInstance, bShow, bEnabled );
219*b1cdbd2cSJim Jagielski s_SingletonDestroyer.reset( s_FilePreviewInst );
220*b1cdbd2cSJim Jagielski }
221*b1cdbd2cSJim Jagielski catch( CPreviewException& )
222*b1cdbd2cSJim Jagielski {
223*b1cdbd2cSJim Jagielski OSL_ASSERT( !s_FilePreviewInst );
224*b1cdbd2cSJim Jagielski OSL_ENSURE( sal_False, "Creation of the preview window failed" );
225*b1cdbd2cSJim Jagielski }
226*b1cdbd2cSJim Jagielski catch( CAutoOleInit::COleInitException& )
227*b1cdbd2cSJim Jagielski {
228*b1cdbd2cSJim Jagielski OSL_ASSERT( !s_FilePreviewInst );
229*b1cdbd2cSJim Jagielski OSL_ENSURE( sal_False, "OleInitalize failed" );
230*b1cdbd2cSJim Jagielski }
231*b1cdbd2cSJim Jagielski }
232*b1cdbd2cSJim Jagielski
233*b1cdbd2cSJim Jagielski return s_FilePreviewInst;
234*b1cdbd2cSJim Jagielski }
235*b1cdbd2cSJim Jagielski
236*b1cdbd2cSJim Jagielski //---------------------------------------------------
237*b1cdbd2cSJim Jagielski //
238*b1cdbd2cSJim Jagielski //---------------------------------------------------
239*b1cdbd2cSJim Jagielski
CFilePreview(HWND aParent,POINT ulCorner,const CDimension & aSize,HINSTANCE hInstance,sal_Bool bShow,sal_Bool bEnabled)240*b1cdbd2cSJim Jagielski CFilePreview::CFilePreview(
241*b1cdbd2cSJim Jagielski HWND aParent,
242*b1cdbd2cSJim Jagielski POINT ulCorner,
243*b1cdbd2cSJim Jagielski const CDimension& aSize,
244*b1cdbd2cSJim Jagielski HINSTANCE hInstance,
245*b1cdbd2cSJim Jagielski sal_Bool bShow,
246*b1cdbd2cSJim Jagielski sal_Bool bEnabled ) :
247*b1cdbd2cSJim Jagielski m_hInstance( hInstance ),
248*b1cdbd2cSJim Jagielski m_bEnabled( bEnabled )
249*b1cdbd2cSJim Jagielski {
250*b1cdbd2cSJim Jagielski // register the preview window class
251*b1cdbd2cSJim Jagielski WNDCLASSEX wndClsEx;
252*b1cdbd2cSJim Jagielski ZeroMemory(&wndClsEx, sizeof(wndClsEx));
253*b1cdbd2cSJim Jagielski
254*b1cdbd2cSJim Jagielski wndClsEx.cbSize = sizeof(wndClsEx);
255*b1cdbd2cSJim Jagielski wndClsEx.style = CS_HREDRAW | CS_VREDRAW;
256*b1cdbd2cSJim Jagielski wndClsEx.lpfnWndProc = CFilePreview::WndProc;
257*b1cdbd2cSJim Jagielski wndClsEx.hInstance = m_hInstance;
258*b1cdbd2cSJim Jagielski wndClsEx.hbrBackground = (HBRUSH)( COLOR_INACTIVEBORDER + 1 );
259*b1cdbd2cSJim Jagielski wndClsEx.lpszClassName = PREVIEWWND_CLASS_NAME;
260*b1cdbd2cSJim Jagielski
261*b1cdbd2cSJim Jagielski // register the preview window class
262*b1cdbd2cSJim Jagielski // !!! Win95 - the window class will be unregistered automaticly
263*b1cdbd2cSJim Jagielski // if the dll is unloaded
264*b1cdbd2cSJim Jagielski // Win2000 - the window class must be unregistered manually
265*b1cdbd2cSJim Jagielski // if the dll is unloaded
266*b1cdbd2cSJim Jagielski m_atomPrevWndClass = RegisterClassEx(&wndClsEx);
267*b1cdbd2cSJim Jagielski if ( !m_atomPrevWndClass )
268*b1cdbd2cSJim Jagielski throw CPreviewException( );
269*b1cdbd2cSJim Jagielski
270*b1cdbd2cSJim Jagielski // create the preview window in invisible state
271*b1cdbd2cSJim Jagielski sal_uInt32 dwStyle = bShow ? (WS_CHILD | WS_VISIBLE) : WS_CHILD;
272*b1cdbd2cSJim Jagielski m_hwnd = CreateWindowEx(
273*b1cdbd2cSJim Jagielski WS_EX_CLIENTEDGE,
274*b1cdbd2cSJim Jagielski PREVIEWWND_CLASS_NAME,
275*b1cdbd2cSJim Jagielski TEXT(""),
276*b1cdbd2cSJim Jagielski dwStyle,
277*b1cdbd2cSJim Jagielski ulCorner.x,
278*b1cdbd2cSJim Jagielski ulCorner.y,
279*b1cdbd2cSJim Jagielski aSize.m_cx,
280*b1cdbd2cSJim Jagielski aSize.m_cy,
281*b1cdbd2cSJim Jagielski aParent,
282*b1cdbd2cSJim Jagielski (HMENU)100, // for child windows this will
283*b1cdbd2cSJim Jagielski // be used as child window identifier
284*b1cdbd2cSJim Jagielski m_hInstance,
285*b1cdbd2cSJim Jagielski 0 );
286*b1cdbd2cSJim Jagielski if (!IsWindow(m_hwnd))
287*b1cdbd2cSJim Jagielski throw CPreviewException( );
288*b1cdbd2cSJim Jagielski }
289*b1cdbd2cSJim Jagielski
290*b1cdbd2cSJim Jagielski //---------------------------------------------------
291*b1cdbd2cSJim Jagielski //
292*b1cdbd2cSJim Jagielski //---------------------------------------------------
293*b1cdbd2cSJim Jagielski
~CFilePreview()294*b1cdbd2cSJim Jagielski CFilePreview::~CFilePreview( )
295*b1cdbd2cSJim Jagielski {
296*b1cdbd2cSJim Jagielski // unregister preview window class
297*b1cdbd2cSJim Jagielski sal_Bool bRet = UnregisterClass(
298*b1cdbd2cSJim Jagielski (LPCTSTR)MAKELONG( m_atomPrevWndClass, 0 ),
299*b1cdbd2cSJim Jagielski m_hInstance );
300*b1cdbd2cSJim Jagielski OSL_POSTCOND( bRet, "Unregister preview window class failed" );
301*b1cdbd2cSJim Jagielski }
302*b1cdbd2cSJim Jagielski
303*b1cdbd2cSJim Jagielski //---------------------------------------------------
304*b1cdbd2cSJim Jagielski // sets the size of the preview window
305*b1cdbd2cSJim Jagielski //---------------------------------------------------
306*b1cdbd2cSJim Jagielski
setSize(const CDimension & aSize)307*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::setSize( const CDimension& aSize )
308*b1cdbd2cSJim Jagielski {
309*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
310*b1cdbd2cSJim Jagielski
311*b1cdbd2cSJim Jagielski // resize the fileopen file listbox
312*b1cdbd2cSJim Jagielski return SetWindowPos(
313*b1cdbd2cSJim Jagielski m_hwnd,
314*b1cdbd2cSJim Jagielski NULL,
315*b1cdbd2cSJim Jagielski 0,
316*b1cdbd2cSJim Jagielski 0,
317*b1cdbd2cSJim Jagielski aSize.m_cx,
318*b1cdbd2cSJim Jagielski aSize.m_cy,
319*b1cdbd2cSJim Jagielski SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
320*b1cdbd2cSJim Jagielski }
321*b1cdbd2cSJim Jagielski
322*b1cdbd2cSJim Jagielski //---------------------------------------------------
323*b1cdbd2cSJim Jagielski // returns the dimension of the preview
324*b1cdbd2cSJim Jagielski //---------------------------------------------------
325*b1cdbd2cSJim Jagielski
getSize(CDimension & theSize) const326*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::getSize( CDimension& theSize ) const
327*b1cdbd2cSJim Jagielski {
328*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
329*b1cdbd2cSJim Jagielski
330*b1cdbd2cSJim Jagielski RECT rect;
331*b1cdbd2cSJim Jagielski sal_Bool bRet = GetWindowRect( m_hwnd, &rect );
332*b1cdbd2cSJim Jagielski
333*b1cdbd2cSJim Jagielski theSize.m_cx = _getWidthRect( rect );
334*b1cdbd2cSJim Jagielski theSize.m_cy = _getHeightRect( rect );
335*b1cdbd2cSJim Jagielski
336*b1cdbd2cSJim Jagielski return bRet;
337*b1cdbd2cSJim Jagielski }
338*b1cdbd2cSJim Jagielski
339*b1cdbd2cSJim Jagielski //---------------------------------------------------
340*b1cdbd2cSJim Jagielski // sets the position of the upper left corner
341*b1cdbd2cSJim Jagielski // of the preview window relative to the
342*b1cdbd2cSJim Jagielski // upper left corner of the parent window
343*b1cdbd2cSJim Jagielski //---------------------------------------------------
344*b1cdbd2cSJim Jagielski
setPos(POINT ulCorner)345*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::setPos( POINT ulCorner )
346*b1cdbd2cSJim Jagielski {
347*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
348*b1cdbd2cSJim Jagielski
349*b1cdbd2cSJim Jagielski // resize the fileopen file listbox
350*b1cdbd2cSJim Jagielski return SetWindowPos(
351*b1cdbd2cSJim Jagielski m_hwnd,
352*b1cdbd2cSJim Jagielski NULL,
353*b1cdbd2cSJim Jagielski ulCorner.x,
354*b1cdbd2cSJim Jagielski ulCorner.y,
355*b1cdbd2cSJim Jagielski 0,
356*b1cdbd2cSJim Jagielski 0,
357*b1cdbd2cSJim Jagielski SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
358*b1cdbd2cSJim Jagielski }
359*b1cdbd2cSJim Jagielski
360*b1cdbd2cSJim Jagielski //---------------------------------------------------
361*b1cdbd2cSJim Jagielski // returns the current position of the preview
362*b1cdbd2cSJim Jagielski // relative to the upper left corner of the
363*b1cdbd2cSJim Jagielski // parent window
364*b1cdbd2cSJim Jagielski //---------------------------------------------------
365*b1cdbd2cSJim Jagielski
getPos(POINT & ulCorner) const366*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::getPos( POINT& ulCorner ) const
367*b1cdbd2cSJim Jagielski {
368*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
369*b1cdbd2cSJim Jagielski
370*b1cdbd2cSJim Jagielski POINT pt = { 0, 0 };
371*b1cdbd2cSJim Jagielski RECT rect;
372*b1cdbd2cSJim Jagielski
373*b1cdbd2cSJim Jagielski sal_Bool bRet = GetWindowRect( m_hwnd, &rect );
374*b1cdbd2cSJim Jagielski
375*b1cdbd2cSJim Jagielski ulCorner.x = rect.left;
376*b1cdbd2cSJim Jagielski ulCorner.y = rect.top;
377*b1cdbd2cSJim Jagielski
378*b1cdbd2cSJim Jagielski ScreenToClient( m_hwnd, &ulCorner );
379*b1cdbd2cSJim Jagielski
380*b1cdbd2cSJim Jagielski return bRet;
381*b1cdbd2cSJim Jagielski }
382*b1cdbd2cSJim Jagielski
383*b1cdbd2cSJim Jagielski //---------------------------------------------------
384*b1cdbd2cSJim Jagielski //
385*b1cdbd2cSJim Jagielski //---------------------------------------------------
386*b1cdbd2cSJim Jagielski
enable(sal_Bool bEnable)387*b1cdbd2cSJim Jagielski void SAL_CALL CFilePreview::enable( sal_Bool bEnable )
388*b1cdbd2cSJim Jagielski {
389*b1cdbd2cSJim Jagielski m_bEnabled = bEnable;
390*b1cdbd2cSJim Jagielski
391*b1cdbd2cSJim Jagielski // force a redraw
392*b1cdbd2cSJim Jagielski InvalidateRect( m_hwnd, NULL, sal_True );
393*b1cdbd2cSJim Jagielski UpdateWindow( m_hwnd );
394*b1cdbd2cSJim Jagielski }
395*b1cdbd2cSJim Jagielski
396*b1cdbd2cSJim Jagielski //---------------------------------------------------
397*b1cdbd2cSJim Jagielski // shows the preview window
398*b1cdbd2cSJim Jagielski // possible values see SHOW_STATE
399*b1cdbd2cSJim Jagielski // SS_SHOW - make the window visible
400*b1cdbd2cSJim Jagielski // SS_HIDE - hide the window
401*b1cdbd2cSJim Jagielski // SS_ENABLED - enable the window
402*b1cdbd2cSJim Jagielski // SS_DISABLED - disable the window
403*b1cdbd2cSJim Jagielski //---------------------------------------------------
404*b1cdbd2cSJim Jagielski
show(sal_Bool bShow)405*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::show( sal_Bool bShow )
406*b1cdbd2cSJim Jagielski {
407*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
408*b1cdbd2cSJim Jagielski
409*b1cdbd2cSJim Jagielski sal_Int32 showState = bShow ? SW_SHOW : SW_HIDE;
410*b1cdbd2cSJim Jagielski return ShowWindow( m_hwnd, showState );
411*b1cdbd2cSJim Jagielski }
412*b1cdbd2cSJim Jagielski
413*b1cdbd2cSJim Jagielski //---------------------------------------------------
414*b1cdbd2cSJim Jagielski // if the preview is shown and enabled
415*b1cdbd2cSJim Jagielski // preview of the given file will be shown
416*b1cdbd2cSJim Jagielski // returns true on success or false if an error
417*b1cdbd2cSJim Jagielski // occured (the file in not there or not accessible etc.)
418*b1cdbd2cSJim Jagielski //---------------------------------------------------
419*b1cdbd2cSJim Jagielski
update(const rtl::OUString & aFileName)420*b1cdbd2cSJim Jagielski sal_Bool SAL_CALL CFilePreview::update( const rtl::OUString& aFileName )
421*b1cdbd2cSJim Jagielski {
422*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
423*b1cdbd2cSJim Jagielski
424*b1cdbd2cSJim Jagielski try
425*b1cdbd2cSJim Jagielski {
426*b1cdbd2cSJim Jagielski if ( m_bEnabled )
427*b1cdbd2cSJim Jagielski {
428*b1cdbd2cSJim Jagielski if ( m_IPicture )
429*b1cdbd2cSJim Jagielski m_IPicture.Release( );
430*b1cdbd2cSJim Jagielski
431*b1cdbd2cSJim Jagielski loadFile( aFileName );
432*b1cdbd2cSJim Jagielski
433*b1cdbd2cSJim Jagielski // force a complete window redraw
434*b1cdbd2cSJim Jagielski InvalidateRect( m_hwnd, NULL, sal_True );
435*b1cdbd2cSJim Jagielski UpdateWindow( m_hwnd );
436*b1cdbd2cSJim Jagielski }
437*b1cdbd2cSJim Jagielski }
438*b1cdbd2cSJim Jagielski catch( _com_error& )
439*b1cdbd2cSJim Jagielski {
440*b1cdbd2cSJim Jagielski }
441*b1cdbd2cSJim Jagielski
442*b1cdbd2cSJim Jagielski return sal_True;
443*b1cdbd2cSJim Jagielski }
444*b1cdbd2cSJim Jagielski
445*b1cdbd2cSJim Jagielski //---------------------------------------------------
446*b1cdbd2cSJim Jagielski //
447*b1cdbd2cSJim Jagielski //---------------------------------------------------
448*b1cdbd2cSJim Jagielski
onPaint(HWND hWnd,HDC hDC)449*b1cdbd2cSJim Jagielski void SAL_CALL CFilePreview::onPaint( HWND hWnd, HDC hDC )
450*b1cdbd2cSJim Jagielski {
451*b1cdbd2cSJim Jagielski OSL_PRECOND( IsWindow( m_hwnd ), "Preview window not initialized" );
452*b1cdbd2cSJim Jagielski
453*b1cdbd2cSJim Jagielski try
454*b1cdbd2cSJim Jagielski {
455*b1cdbd2cSJim Jagielski if ( m_bEnabled )
456*b1cdbd2cSJim Jagielski {
457*b1cdbd2cSJim Jagielski // get width and height of picture
458*b1cdbd2cSJim Jagielski long cxPicHIMETRIC;
459*b1cdbd2cSJim Jagielski long cyPicHIMETRIC;
460*b1cdbd2cSJim Jagielski
461*b1cdbd2cSJim Jagielski m_IPicture->get_Width( &cxPicHIMETRIC );
462*b1cdbd2cSJim Jagielski m_IPicture->get_Height( &cyPicHIMETRIC );
463*b1cdbd2cSJim Jagielski
464*b1cdbd2cSJim Jagielski // convert himetric to pixels
465*b1cdbd2cSJim Jagielski int cxPicPIXEL = Himetric2Pixel( hDC, cxPicHIMETRIC, LOGPIXELSX );
466*b1cdbd2cSJim Jagielski int cyPicPIXEL = Himetric2Pixel( hDC, cyPicHIMETRIC, LOGPIXELSY );
467*b1cdbd2cSJim Jagielski
468*b1cdbd2cSJim Jagielski // scale the picture based on the size of the preview window
469*b1cdbd2cSJim Jagielski RECT rcPrevWnd;
470*b1cdbd2cSJim Jagielski GetClientRect(hWnd, &rcPrevWnd);
471*b1cdbd2cSJim Jagielski
472*b1cdbd2cSJim Jagielski CDimension scaledPicSize = _scalePictureSize(
473*b1cdbd2cSJim Jagielski hWnd, CDimension( cxPicPIXEL, cyPicPIXEL ) );
474*b1cdbd2cSJim Jagielski
475*b1cdbd2cSJim Jagielski // calc the upper left corner so that the picture
476*b1cdbd2cSJim Jagielski // is centered within the window
477*b1cdbd2cSJim Jagielski POINT ulCorner = _calcULCorner( hWnd, scaledPicSize );
478*b1cdbd2cSJim Jagielski
479*b1cdbd2cSJim Jagielski // render the picture
480*b1cdbd2cSJim Jagielski HRESULT hr = m_IPicture->Render(
481*b1cdbd2cSJim Jagielski hDC,
482*b1cdbd2cSJim Jagielski ulCorner.x,
483*b1cdbd2cSJim Jagielski ulCorner.y,
484*b1cdbd2cSJim Jagielski scaledPicSize.m_cx,
485*b1cdbd2cSJim Jagielski scaledPicSize.m_cy,
486*b1cdbd2cSJim Jagielski 0,
487*b1cdbd2cSJim Jagielski cyPicHIMETRIC,
488*b1cdbd2cSJim Jagielski cxPicHIMETRIC,
489*b1cdbd2cSJim Jagielski -cyPicHIMETRIC,
490*b1cdbd2cSJim Jagielski &rcPrevWnd );
491*b1cdbd2cSJim Jagielski } // end if ( m_bEnabled )
492*b1cdbd2cSJim Jagielski }
493*b1cdbd2cSJim Jagielski catch( _com_error& )
494*b1cdbd2cSJim Jagielski {
495*b1cdbd2cSJim Jagielski }
496*b1cdbd2cSJim Jagielski }
497*b1cdbd2cSJim Jagielski
498*b1cdbd2cSJim Jagielski //---------------------------------------------------
499*b1cdbd2cSJim Jagielski //
500*b1cdbd2cSJim Jagielski //---------------------------------------------------
501*b1cdbd2cSJim Jagielski
loadFile(const rtl::OUString & aFileName)502*b1cdbd2cSJim Jagielski sal_Bool CFilePreview::loadFile( const rtl::OUString& aFileName )
503*b1cdbd2cSJim Jagielski {
504*b1cdbd2cSJim Jagielski HANDLE hFile = 0;
505*b1cdbd2cSJim Jagielski HGLOBAL hGlobal = 0;
506*b1cdbd2cSJim Jagielski LPVOID pData = NULL;
507*b1cdbd2cSJim Jagielski IStreamPtr pIStream;
508*b1cdbd2cSJim Jagielski HRESULT hr = E_FAIL;
509*b1cdbd2cSJim Jagielski sal_Bool bRet;
510*b1cdbd2cSJim Jagielski sal_uInt32 nBytesRead;
511*b1cdbd2cSJim Jagielski sal_uInt32 fszExtra;
512*b1cdbd2cSJim Jagielski sal_uInt32 fsize;
513*b1cdbd2cSJim Jagielski
514*b1cdbd2cSJim Jagielski hFile = CreateFile(
515*b1cdbd2cSJim Jagielski aFileName.getStr( ),
516*b1cdbd2cSJim Jagielski GENERIC_READ,
517*b1cdbd2cSJim Jagielski 0,
518*b1cdbd2cSJim Jagielski NULL,
519*b1cdbd2cSJim Jagielski OPEN_EXISTING,
520*b1cdbd2cSJim Jagielski 0,
521*b1cdbd2cSJim Jagielski NULL );
522*b1cdbd2cSJim Jagielski if ( INVALID_HANDLE_VALUE == hFile )
523*b1cdbd2cSJim Jagielski goto CLEANUP_AND_EXIT;
524*b1cdbd2cSJim Jagielski
525*b1cdbd2cSJim Jagielski fszExtra = 0;
526*b1cdbd2cSJim Jagielski fsize = GetFileSize( hFile, &fszExtra );
527*b1cdbd2cSJim Jagielski
528*b1cdbd2cSJim Jagielski // empty file, error or file to big
529*b1cdbd2cSJim Jagielski if ( -1 == fsize || 0 == fsize || fszExtra )
530*b1cdbd2cSJim Jagielski goto CLEANUP_AND_EXIT;
531*b1cdbd2cSJim Jagielski
532*b1cdbd2cSJim Jagielski hGlobal = GlobalAlloc( GMEM_MOVEABLE, fsize );
533*b1cdbd2cSJim Jagielski if ( !hGlobal )
534*b1cdbd2cSJim Jagielski goto CLEANUP_AND_EXIT;
535*b1cdbd2cSJim Jagielski
536*b1cdbd2cSJim Jagielski pData = GlobalLock( hGlobal );
537*b1cdbd2cSJim Jagielski if ( !pData )
538*b1cdbd2cSJim Jagielski goto CLEANUP_AND_EXIT;
539*b1cdbd2cSJim Jagielski
540*b1cdbd2cSJim Jagielski bRet = ReadFile(
541*b1cdbd2cSJim Jagielski hFile, pData, fsize, &nBytesRead, NULL );
542*b1cdbd2cSJim Jagielski
543*b1cdbd2cSJim Jagielski if ( !bRet )
544*b1cdbd2cSJim Jagielski goto CLEANUP_AND_EXIT;
545*b1cdbd2cSJim Jagielski
546*b1cdbd2cSJim Jagielski hr = CreateStreamOnHGlobal(
547*b1cdbd2cSJim Jagielski hGlobal, sal_False, &pIStream );
548*b1cdbd2cSJim Jagielski
549*b1cdbd2cSJim Jagielski if ( SUCCEEDED( hr ) )
550*b1cdbd2cSJim Jagielski {
551*b1cdbd2cSJim Jagielski hr = OleLoadPicture(
552*b1cdbd2cSJim Jagielski pIStream, fsize, sal_False,
553*b1cdbd2cSJim Jagielski __uuidof( IPicture ), (LPVOID*)&m_IPicture );
554*b1cdbd2cSJim Jagielski }
555*b1cdbd2cSJim Jagielski
556*b1cdbd2cSJim Jagielski CLEANUP_AND_EXIT:
557*b1cdbd2cSJim Jagielski if ( hFile )
558*b1cdbd2cSJim Jagielski CloseHandle( hFile );
559*b1cdbd2cSJim Jagielski
560*b1cdbd2cSJim Jagielski if ( pData )
561*b1cdbd2cSJim Jagielski GlobalUnlock( hGlobal );
562*b1cdbd2cSJim Jagielski
563*b1cdbd2cSJim Jagielski if ( hGlobal )
564*b1cdbd2cSJim Jagielski GlobalFree( hGlobal );
565*b1cdbd2cSJim Jagielski
566*b1cdbd2cSJim Jagielski return ( SUCCEEDED( hr ) );
567*b1cdbd2cSJim Jagielski }
568*b1cdbd2cSJim Jagielski
569*b1cdbd2cSJim Jagielski //---------------------------------------------------
570*b1cdbd2cSJim Jagielski //
571*b1cdbd2cSJim Jagielski //---------------------------------------------------
572*b1cdbd2cSJim Jagielski
WndProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam)573*b1cdbd2cSJim Jagielski LRESULT CALLBACK CFilePreview::WndProc(
574*b1cdbd2cSJim Jagielski HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
575*b1cdbd2cSJim Jagielski {
576*b1cdbd2cSJim Jagielski LRESULT lResult = 0;
577*b1cdbd2cSJim Jagielski
578*b1cdbd2cSJim Jagielski switch( uMsg )
579*b1cdbd2cSJim Jagielski {
580*b1cdbd2cSJim Jagielski case WM_PAINT:
581*b1cdbd2cSJim Jagielski {
582*b1cdbd2cSJim Jagielski OSL_PRECOND( s_FilePreviewInst, "Static member not initialized" );
583*b1cdbd2cSJim Jagielski
584*b1cdbd2cSJim Jagielski HDC hDC;
585*b1cdbd2cSJim Jagielski PAINTSTRUCT ps;
586*b1cdbd2cSJim Jagielski
587*b1cdbd2cSJim Jagielski hDC = BeginPaint( hWnd, &ps );
588*b1cdbd2cSJim Jagielski s_FilePreviewInst->onPaint( hWnd, hDC );
589*b1cdbd2cSJim Jagielski EndPaint( hWnd, &ps );
590*b1cdbd2cSJim Jagielski }
591*b1cdbd2cSJim Jagielski break;
592*b1cdbd2cSJim Jagielski
593*b1cdbd2cSJim Jagielski // under windows 95/98 the creation of the
594*b1cdbd2cSJim Jagielski // hidden target request window fails if
595*b1cdbd2cSJim Jagielski // we don't handle this message ourself
596*b1cdbd2cSJim Jagielski // because the DefWindowProc returns 0 as
597*b1cdbd2cSJim Jagielski // a result of handling WM_NCCREATE what
598*b1cdbd2cSJim Jagielski // leads to a failure of CreateWindow[Ex]!!!
599*b1cdbd2cSJim Jagielski case WM_NCCREATE:
600*b1cdbd2cSJim Jagielski lResult = sal_True;
601*b1cdbd2cSJim Jagielski break;
602*b1cdbd2cSJim Jagielski
603*b1cdbd2cSJim Jagielski default:
604*b1cdbd2cSJim Jagielski return DefWindowProc( hWnd, uMsg, wParam, lParam );
605*b1cdbd2cSJim Jagielski }
606*b1cdbd2cSJim Jagielski
607*b1cdbd2cSJim Jagielski return lResult;
608*b1cdbd2cSJim Jagielski }
609*b1cdbd2cSJim Jagielski
610*b1cdbd2cSJim Jagielski
611*b1cdbd2cSJim Jagielski
612