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