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[wxWidgets.git] / src / msw / font.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: font.cpp
3// Purpose: wxFont class
4// Author: Julian Smart
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart and Markus Holzem
b9b3ccd9 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
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12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
19
2bda0e17 20#ifdef __GNUG__
0c5d3e1c 21 #pragma implementation "font.h"
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22#endif
23
24// For compilers that support precompilation, includes "wx.h".
25#include "wx/wxprec.h"
26
27#ifdef __BORLANDC__
0c5d3e1c 28 #pragma hdrstop
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29#endif
30
31#ifndef WX_PRECOMP
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32 #include <stdio.h>
33 #include "wx/setup.h"
34 #include "wx/list.h"
35 #include "wx/utils.h"
36 #include "wx/app.h"
37 #include "wx/font.h"
38#endif // WX_PRECOMP
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39
40#include "wx/msw/private.h"
2bda0e17 41
7fee680b 42IMPLEMENT_DYNAMIC_CLASS(wxFont, wxGDIObject)
2bda0e17 43
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44// ----------------------------------------------------------------------------
45// wxFontRefData - the internal description of the font
46// ----------------------------------------------------------------------------
2bda0e17 47
0c5d3e1c 48class WXDLLEXPORT wxFontRefData: public wxGDIRefData
2bda0e17 49{
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50friend class WXDLLEXPORT wxFont;
51
52public:
53 wxFontRefData()
54 {
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55 Init(12, wxDEFAULT, wxNORMAL, wxNORMAL, FALSE,
56 "", wxFONTENCODING_DEFAULT);
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57 }
58
59 wxFontRefData(const wxFontRefData& data)
60 {
61 Init(data.m_pointSize, data.m_family, data.m_style, data.m_weight,
62 data.m_underlined, data.m_faceName, data.m_encoding);
63
64 m_fontId = data.m_fontId;
65 }
66
67 wxFontRefData(int size,
68 int family,
69 int style,
70 int weight,
71 bool underlined,
72 const wxString& faceName,
73 wxFontEncoding encoding)
74 {
75 Init(size, family, style, weight, underlined, faceName, encoding);
76 }
2bda0e17 77
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78 virtual ~wxFontRefData();
79
80protected:
81 // common part of all ctors
82 void Init(int size,
83 int family,
84 int style,
85 int weight,
86 bool underlined,
87 const wxString& faceName,
88 wxFontEncoding encoding);
89
90 // If TRUE, the pointer to the actual font is temporary and SHOULD NOT BE
91 // DELETED by destructor
92 bool m_temporary;
93
94 int m_fontId;
95
96 // font characterstics
97 int m_pointSize;
98 int m_family;
99 int m_style;
100 int m_weight;
101 bool m_underlined;
102 wxString m_faceName;
103 wxFontEncoding m_encoding;
104
105 // Windows font handle
106 WXHFONT m_hFont;
107};
108
109// ============================================================================
110// implementation
111// ============================================================================
112
113// ----------------------------------------------------------------------------
114// wxFontRefData
115// ----------------------------------------------------------------------------
116
117void wxFontRefData::Init(int pointSize,
118 int family,
119 int style,
120 int weight,
121 bool underlined,
122 const wxString& faceName,
123 wxFontEncoding encoding)
b823f5a1 124{
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125 m_style = style;
126 m_pointSize = pointSize;
127 m_family = family;
128 m_style = style;
129 m_weight = weight;
130 m_underlined = underlined;
131 m_faceName = faceName;
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132 m_encoding = encoding;
133
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134 m_fontId = 0;
135 m_temporary = FALSE;
0c5d3e1c 136
b9b3ccd9 137 m_hFont = 0;
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138}
139
0c5d3e1c 140wxFontRefData::~wxFontRefData()
2bda0e17 141{
b9b3ccd9 142 if ( m_hFont )
0c5d3e1c 143 {
b9b3ccd9 144 if ( !::DeleteObject((HFONT) m_hFont) )
0c5d3e1c 145 {
f6bcfd97 146 wxLogLastError(wxT("DeleteObject(font)"));
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147 }
148 }
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149}
150
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151// ----------------------------------------------------------------------------
152// wxFont
153// ----------------------------------------------------------------------------
154
155void wxFont::Init()
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156{
157 if ( wxTheFontList )
158 wxTheFontList->Append(this);
159}
160
161/* Constructor for a font. Note that the real construction is done
162 * in wxDC::SetFont, when information is available about scaling etc.
163 */
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164bool wxFont::Create(int pointSize,
165 int family,
166 int style,
167 int weight,
168 bool underlined,
169 const wxString& faceName,
170 wxFontEncoding encoding)
2bda0e17 171{
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172 UnRef();
173 m_refData = new wxFontRefData(pointSize, family, style, weight,
174 underlined, faceName, encoding);
2bda0e17 175
0c5d3e1c 176 RealizeResource();
2bda0e17 177
0c5d3e1c 178 return TRUE;
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179}
180
181wxFont::~wxFont()
182{
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183 if ( wxTheFontList )
184 wxTheFontList->DeleteObject(this);
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185}
186
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187// ----------------------------------------------------------------------------
188// real implementation
189// ----------------------------------------------------------------------------
190
191bool wxFont::RealizeResource()
2bda0e17 192{
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193 if ( GetResourceHandle() )
194 {
195 // VZ: the old code returned FALSE in this case, but it doesn't seem
196 // to make sense because the font _was_ created
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197 return TRUE;
198 }
199
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200 LOGFONT lf;
201 wxFillLogFont(&lf, this);
202 M_FONTDATA->m_hFont = (WXHFONT)::CreateFontIndirect(&lf);
fb04b343 203 M_FONTDATA->m_faceName = lf.lfFaceName;
11c7d5b6 204 if ( !M_FONTDATA->m_hFont )
b9b3ccd9 205 {
f6bcfd97 206 wxLogLastError(wxT("CreateFont"));
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207
208 return FALSE;
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209 }
210
11c7d5b6 211 return TRUE;
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212}
213
214bool wxFont::FreeResource(bool force)
215{
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216 if ( GetResourceHandle() )
217 {
218 if ( !::DeleteObject((HFONT) M_FONTDATA->m_hFont) )
219 {
f6bcfd97 220 wxLogLastError(wxT("DeleteObject(font)"));
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221 }
222
223 M_FONTDATA->m_hFont = 0;
224
225 return TRUE;
226 }
227 return FALSE;
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228}
229
b823f5a1 230WXHANDLE wxFont::GetResourceHandle()
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231{
232 return GetHFONT();
233}
234
235WXHFONT wxFont::GetHFONT() const
2bda0e17 236{
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237 if ( !M_FONTDATA )
238 return 0;
239 else
11c7d5b6 240 return (WXHANDLE)M_FONTDATA->m_hFont;
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241}
242
e90babdf 243bool wxFont::IsFree() const
2bda0e17 244{
0c5d3e1c 245 return (M_FONTDATA && (M_FONTDATA->m_hFont == 0));
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246}
247
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248void wxFont::Unshare()
249{
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250 // Don't change shared data
251 if ( !m_refData )
b823f5a1 252 {
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253 m_refData = new wxFontRefData();
254 }
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255 else
256 {
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257 wxFontRefData* ref = new wxFontRefData(*M_FONTDATA);
258 UnRef();
259 m_refData = ref;
260 }
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261}
262
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263// ----------------------------------------------------------------------------
264// change font attribute: we recreate font when doing it
265// ----------------------------------------------------------------------------
266
debe6624 267void wxFont::SetPointSize(int pointSize)
2bda0e17 268{
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269 Unshare();
270
2bda0e17 271 M_FONTDATA->m_pointSize = pointSize;
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272
273 RealizeResource();
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274}
275
debe6624 276void wxFont::SetFamily(int family)
2bda0e17 277{
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278 Unshare();
279
2bda0e17 280 M_FONTDATA->m_family = family;
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281
282 RealizeResource();
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283}
284
debe6624 285void wxFont::SetStyle(int style)
2bda0e17 286{
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287 Unshare();
288
2bda0e17 289 M_FONTDATA->m_style = style;
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290
291 RealizeResource();
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292}
293
debe6624 294void wxFont::SetWeight(int weight)
2bda0e17 295{
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296 Unshare();
297
2bda0e17 298 M_FONTDATA->m_weight = weight;
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299
300 RealizeResource();
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301}
302
303void wxFont::SetFaceName(const wxString& faceName)
304{
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305 Unshare();
306
2bda0e17 307 M_FONTDATA->m_faceName = faceName;
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308
309 RealizeResource();
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310}
311
debe6624 312void wxFont::SetUnderlined(bool underlined)
2bda0e17 313{
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314 Unshare();
315
2bda0e17 316 M_FONTDATA->m_underlined = underlined;
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317
318 RealizeResource();
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319}
320
0c5d3e1c 321void wxFont::SetEncoding(wxFontEncoding encoding)
2bda0e17 322{
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323 Unshare();
324
325 M_FONTDATA->m_encoding = encoding;
326
327 RealizeResource();
328}
329
330// ----------------------------------------------------------------------------
331// accessors
332// ----------------------------------------------------------------------------
333
334int wxFont::GetPointSize() const
335{
336 return M_FONTDATA->m_pointSize;
337}
338
339int wxFont::GetFamily() const
340{
341 return M_FONTDATA->m_family;
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342}
343
0c5d3e1c 344int wxFont::GetFontId() const
2bda0e17 345{
0c5d3e1c 346 return M_FONTDATA->m_fontId;
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347}
348
0c5d3e1c 349int wxFont::GetStyle() const
2bda0e17 350{
0c5d3e1c 351 return M_FONTDATA->m_style;
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352}
353
0c5d3e1c 354int wxFont::GetWeight() const
2bda0e17 355{
0c5d3e1c 356 return M_FONTDATA->m_weight;
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357}
358
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359bool wxFont::GetUnderlined() const
360{
361 return M_FONTDATA->m_underlined;
362}
363
364wxString wxFont::GetFaceName() const
365{
366 wxString str;
367 if ( M_FONTDATA )
11c7d5b6 368 str = M_FONTDATA->m_faceName;
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369 return str;
370}
371
372wxFontEncoding wxFont::GetEncoding() const
373{
374 return M_FONTDATA->m_encoding;
375}
a1d58ddc 376