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Fix a couple of small errors.
[wxWidgets.git] / src / os2 / gdiimage.cpp
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1///////////////////////////////////////////////////////////////////////////////
2// Name: src/os2/gdiimage.cpp
3// Purpose: wxGDIImage implementation
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 20.11.99
7// RCS-ID: $Id$
8// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
9// Licence: wxWindows licence
10///////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
20// For compilers that support precompilation, includes "wx.h".
21#include "wx/wxprec.h"
22
23
24#ifndef WX_PRECOMP
25 #include "wx/string.h"
26 #include "wx/app.h"
27#endif // WX_PRECOMP
28
29#include "wx/os2/private.h"
30#include "wx/os2/gdiimage.h"
31
32#include "wx/listimpl.cpp"
33WX_DEFINE_LIST(wxGDIImageHandlerList)
34
35// ----------------------------------------------------------------------------
36// private classes
37// ----------------------------------------------------------------------------
38
39// all image handlers are declared/defined in this file because the outside
40// world doesn't have to know about them (but only about wxBITMAP_TYPE_XXX ids)
41
42class WXDLLEXPORT wxBMPFileHandler : public wxBitmapHandler
43{
44public:
45 wxBMPFileHandler() : wxBitmapHandler(_T("Windows bitmap file"), _T("bmp"),
46 wxBITMAP_TYPE_BMP)
47 {
48 }
49
50 virtual bool LoadFile( wxBitmap* pBitmap
51 ,const wxString& rName
52 ,HPS hPs
53 ,long lFlags
54 ,int nDesiredWidth
55 ,int nDesiredHeight
56 );
57 virtual bool SaveFile( wxBitmap* pBitmap
58 ,const wxString& rName
59 ,int lType
60 ,const wxPalette* pPalette = NULL
61 );
62
63private:
64 inline virtual bool LoadFile( wxBitmap* pBitmap
65 ,int nId
66 ,long lFlags
67 ,int nDesiredWidth
68 ,int nDesiredHeight
69 )
70 {
71 return wxBitmapHandler::LoadFile( pBitmap
72 ,nId
73 ,lFlags
74 ,nDesiredWidth
75 ,nDesiredHeight
76 );
77 }
78 DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
79};
80
81class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
82{
83public:
84 wxBMPResourceHandler() : wxBitmapHandler(_T("Windows bitmap resource"),
85 wxEmptyString,
86 wxBITMAP_TYPE_BMP_RESOURCE)
87 {
88 }
89
90 virtual bool LoadFile( wxBitmap* pBitmap
91 ,int nId
92 ,long lFlags
93 ,int nDesiredWidth
94 ,int nDesiredHeight
95 );
96
97private:
98 DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
99};
100
101class WXDLLEXPORT wxIconHandler : public wxGDIImageHandler
102{
103public:
104 wxIconHandler( const wxString& rName
105 ,const wxString& rExt
106 ,long lType
107 ) : wxGDIImageHandler( rName
108 ,rExt
109 ,lType
110 )
111 {
112 }
113
114 // creating and saving icons is not supported
115 virtual bool Create( wxGDIImage* WXUNUSED(pImage)
116 ,const void* WXUNUSED(pData)
117 ,long WXUNUSED(lFlags)
118 ,int WXUNUSED(nWidth)
119 ,int WXUNUSED(nHeight)
120 ,int WXUNUSED(nDepth) = 1
121 )
122 {
123 return false;
124 }
125
126 virtual bool Save( wxGDIImage* WXUNUSED(pImage)
127 ,const wxString& WXUNUSED(rName)
128 ,int WXUNUSED(nType)
129 )
130 {
131 return false;
132 }
133 virtual bool Load( wxGDIImage* pImage
134 ,const wxString& rName
135 ,HPS hPs
136 ,long lFlags
137 ,int nDesiredWidth
138 ,int nDesiredHeight
139 )
140 {
141 wxIcon* pIcon = wxDynamicCast(pImage, wxIcon);
142 wxCHECK_MSG(pIcon, false, _T("wxIconHandler only works with icons"));
143
144 return LoadIcon( pIcon
145 ,rName
146 ,hPs
147 ,lFlags
148 ,nDesiredWidth
149 ,nDesiredHeight
150 );
151 }
152
153protected:
154 virtual bool LoadIcon( wxIcon* pIcon
155 ,const wxString& rName
156 ,HPS hPs
157 ,long lFlags
158 ,int nDesiredWidth = -1
159 ,int nDesiredHeight = -1
160 ) = 0;
161private:
162 inline virtual bool Load( wxGDIImage* WXUNUSED(pImage),
163 int WXUNUSED(nId),
164 long WXUNUSED(lFlags),
165 int WXUNUSED(nDesiredWidth),
166 int WXUNUSED(nDesiredHeight) )
167 {
168 return false;
169 }
170};
171
172class WXDLLEXPORT wxICOFileHandler : public wxIconHandler
173{
174public:
175 wxICOFileHandler() : wxIconHandler(_T("ICO icon file"),
176 _T("ico"),
177 wxBITMAP_TYPE_ICO)
178 {
179 }
180
181 virtual bool LoadIcon( wxIcon * pIcon
182 ,const wxString& rName
183 ,HPS hPs
184 ,long lFlags
185 ,int nDesiredWidth = -1
186 ,int nDesiredHeight = -1
187 );
188
189private:
190 DECLARE_DYNAMIC_CLASS(wxICOFileHandler)
191};
192
193class WXDLLEXPORT wxICOResourceHandler: public wxIconHandler
194{
195public:
196 wxICOResourceHandler() : wxIconHandler(_T("ICO resource"),
197 _T("ico"),
198 wxBITMAP_TYPE_ICO_RESOURCE)
199 {
200 }
201
202 virtual bool LoadIcon( wxIcon* pIcon
203 ,const wxString& rName
204 ,HPS hPs
205 ,long lFlags
206 ,int nDesiredWidth = -1
207 ,int nDesiredHeight = -1
208 );
209
210private:
211 DECLARE_DYNAMIC_CLASS(wxICOResourceHandler)
212};
213
214// ----------------------------------------------------------------------------
215// wxWin macros
216// ----------------------------------------------------------------------------
217
218IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
219IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
220IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxObject)
221IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxObject)
222
223// ============================================================================
224// implementation
225// ============================================================================
226
227wxGDIImageHandlerList wxGDIImage::ms_handlers;
228
229// ----------------------------------------------------------------------------
230// wxGDIImage functions forwarded to wxGDIImageRefData
231// ----------------------------------------------------------------------------
232
233bool wxGDIImage::FreeResource( bool WXUNUSED(bForce) )
234{
235 if ( !IsNull() )
236 {
237 GetGDIImageData()->Free();
238 GetGDIImageData()->m_hHandle = 0;
239 }
240
241 return true;
242}
243
244WXHANDLE wxGDIImage::GetResourceHandle() const
245{
246 return GetHandle();
247}
248
249// ----------------------------------------------------------------------------
250// wxGDIImage handler stuff
251// ----------------------------------------------------------------------------
252
253void wxGDIImage::AddHandler( wxGDIImageHandler* pHandler )
254{
255 ms_handlers.Append(pHandler);
256}
257
258void wxGDIImage::InsertHandler( wxGDIImageHandler* pHandler )
259{
260 ms_handlers.Insert(pHandler);
261}
262
263bool wxGDIImage::RemoveHandler( const wxString& rName )
264{
265 wxGDIImageHandler* pHandler = FindHandler(rName);
266
267 if (pHandler)
268 {
269 ms_handlers.DeleteObject(pHandler);
270 return true;
271 }
272 else
273 return false;
274}
275
276wxGDIImageHandler* wxGDIImage::FindHandler(
277 const wxString& rName
278)
279{
280 wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
281
282 while ( pNode )
283 {
284 wxGDIImageHandler* pHandler = pNode->GetData();
285
286 if ( pHandler->GetName() == rName )
287 return pHandler;
288 pNode = pNode->GetNext();
289 }
290 return((wxGDIImageHandler*)NULL);
291}
292
293wxGDIImageHandler* wxGDIImage::FindHandler(
294 const wxString& rExtension
295, long lType
296)
297{
298 wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
299 while ( pNode )
300 {
301 wxGDIImageHandler* pHandler = pNode->GetData();
302
303 if ( (pHandler->GetExtension() = rExtension) &&
304 (lType == -1 || pHandler->GetType() == lType) )
305 {
306 return pHandler;
307 }
308 pNode = pNode->GetNext();
309 }
310 return((wxGDIImageHandler*)NULL);
311}
312
313wxGDIImageHandler* wxGDIImage::FindHandler(
314 long lType
315)
316{
317 wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
318
319 while ( pNode )
320 {
321 wxGDIImageHandler* pHandler = pNode->GetData();
322
323 if ( pHandler->GetType() == lType )
324 return pHandler;
325 pNode = pNode->GetNext();
326 }
327 return((wxGDIImageHandler*)NULL);
328}
329
330void wxGDIImage::CleanUpHandlers()
331{
332 wxGDIImageHandlerList::compatibility_iterator pNode = ms_handlers.GetFirst();
333
334 while ( pNode )
335 {
336 wxGDIImageHandler* pHandler = pNode->GetData();
337 wxGDIImageHandlerList::compatibility_iterator pNext = pNode->GetNext();
338
339 delete pHandler;
340 ms_handlers.Erase( pNode );
341 pNode = pNext;
342 }
343}
344
345void wxGDIImage::InitStandardHandlers()
346{
347 AddHandler(new wxBMPResourceHandler);
348 AddHandler(new wxBMPFileHandler);
349 AddHandler(new wxICOResourceHandler);
350 AddHandler(new wxICOFileHandler);
351}
352
353// ----------------------------------------------------------------------------
354// wxBitmap handlers
355// ----------------------------------------------------------------------------
356
357bool wxBMPResourceHandler::LoadFile( wxBitmap* pBitmap,
358 int nId,
359 long WXUNUSED(lFlags),
360 int WXUNUSED(nDesiredWidth),
361 int WXUNUSED(nDesiredHeight) )
362{
363 SIZEL vSize = {0, 0};
364 DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
365 HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
366 HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
367
368 pBitmap->SetHBITMAP((WXHBITMAP)::GpiLoadBitmap( hPS
369 ,NULLHANDLE
370 ,nId
371 ,0
372 ,0
373 ));
374 ::GpiDestroyPS(hPS);
375 ::DevCloseDC(hDC);
376
377 wxBitmapRefData* pData = pBitmap->GetBitmapData();
378
379 if ( pBitmap->Ok() )
380 {
381 BITMAPINFOHEADER vBmph;
382
383 ::GpiQueryBitmapParameters(GetHbitmapOf(*pBitmap), &vBmph);
384 pData->m_nWidth = vBmph.cx;
385 pData->m_nHeight = vBmph.cy;
386 pData->m_nDepth = vBmph.cBitCount;
387 }
388 return(pBitmap->Ok());
389} // end of wxBMPResourceHandler::LoadFile
390
391bool wxBMPFileHandler::LoadFile( wxBitmap* pBitmap,
392 const wxString& WXUNUSED(rName),
393 HPS WXUNUSED(hPs),
394 long WXUNUSED(lFlags),
395 int WXUNUSED(nDesiredWidth),
396 int WXUNUSED(nDesiredHeight) )
397{
398#if defined(wxUSE_IMAGE_LOADING_IN_OS2) && wxUSE_IMAGE_LOADING_IN_OS2
399 wxPalette* pPalette = NULL;
400
401 bool bSuccess = false; /* wxLoadIntoBitmap( WXSTRINGCAST rName
402 ,pBitmap
403 ,&pPalette
404 ) != 0; */
405 if (bSuccess && pPalette)
406 {
407 pBitmap->SetPalette(*pPalette);
408 }
409
410 // it was copied by the bitmap if it was loaded successfully
411 delete pPalette;
412
413 return(bSuccess);
414#else
415 wxUnusedVar(pBitmap);
416 return false;
417#endif
418}
419
420bool wxBMPFileHandler::SaveFile( wxBitmap* pBitmap,
421 const wxString& WXUNUSED(rName),
422 int WXUNUSED(nType),
423 const wxPalette* pPal )
424{
425#if defined(wxUSE_IMAGE_LOADING_IN_OS2) && wxUSE_IMAGE_LOADING_IN_OS2
426 wxPalette* pActualPalette = (wxPalette *)pPal;
427
428 if (!pActualPalette)
429 pActualPalette = pBitmap->GetPalette();
430 /* return(wxSaveBitmap( WXSTRINGCAST rName
431 ,pBitmap
432 ,pActualPalette
433 ) != 0); */
434 return false;
435#else
436 wxUnusedVar(pBitmap);
437 wxUnusedVar(pPal);
438 return false;
439#endif
440}
441
442// ----------------------------------------------------------------------------
443// wxIcon handlers
444// ----------------------------------------------------------------------------
445
446bool wxICOFileHandler::LoadIcon( wxIcon* pIcon,
447 const wxString& WXUNUSED(rName),
448 HPS WXUNUSED(hPs),
449 long WXUNUSED(lFlags),
450 int WXUNUSED(nDesiredWidth),
451 int WXUNUSED(nDesiredHeight) )
452{
453#if defined(wxUSE_RESOURCE_LOADING_IN_OS2) && wxUSE_RESOURCE_LOADING_IN_OS2
454 pIcon->UnRef();
455
456 return false;
457#else
458 wxUnusedVar(pIcon);
459 return false;
460#endif
461}
462
463bool wxICOResourceHandler::LoadIcon( wxIcon* pIcon,
464 const wxString& rName,
465 HPS WXUNUSED(hPs),
466 long WXUNUSED(lFlags),
467 int WXUNUSED(nDesiredWidth),
468 int WXUNUSED(nDesiredHeight) )
469{
470 HPOINTER hIcon;
471
472 hIcon = ::WinLoadFileIcon( (PSZ)rName.c_str()
473 ,TRUE // load for private use
474 );
475
476 pIcon->SetSize(32, 32); // all OS/2 icons are 32 x 32
477
478 pIcon->SetHICON((WXHICON)hIcon);
479
480 return pIcon->Ok();
481} // end of wxICOResourceHandler::LoadIcon
wxWidgets (Impactor)