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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: brush.cpp | |
3 | // Purpose: wxBrush | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 04/01/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "brush.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include <stdio.h> | |
25 | #include "wx/setup.h" | |
26 | #include "wx/list.h" | |
27 | #include "wx/utils.h" | |
28 | #include "wx/app.h" | |
29 | #include "wx/brush.h" | |
30 | #endif | |
31 | ||
32 | #include "wx/msw/private.h" | |
33 | ||
34 | #include "assert.h" | |
35 | ||
36 | IMPLEMENT_DYNAMIC_CLASS(wxBrush, wxGDIObject) | |
37 | ||
38 | wxBrushRefData::wxBrushRefData(void) | |
39 | { | |
40 | m_style = wxSOLID; | |
41 | m_hBrush = 0; | |
42 | } | |
43 | ||
44 | wxBrushRefData::wxBrushRefData(const wxBrushRefData& data) | |
45 | { | |
46 | m_style = data.m_style; | |
47 | m_stipple = data.m_stipple; | |
48 | m_colour = data.m_colour; | |
49 | m_hBrush = 0; | |
50 | } | |
51 | ||
52 | wxBrushRefData::~wxBrushRefData(void) | |
53 | { | |
54 | if ( m_hBrush ) | |
55 | ::DeleteObject((HBRUSH) m_hBrush); | |
56 | } | |
57 | ||
58 | // Brushes | |
59 | wxBrush::wxBrush(void) | |
60 | { | |
61 | if ( wxTheBrushList ) | |
62 | wxTheBrushList->AddBrush(this); | |
63 | } | |
64 | ||
65 | wxBrush::~wxBrush() | |
66 | { | |
67 | if (wxTheBrushList) | |
68 | wxTheBrushList->RemoveBrush(this); | |
69 | } | |
70 | ||
71 | wxBrush::wxBrush(const wxColour& col, int Style) | |
72 | { | |
73 | m_refData = new wxBrushRefData; | |
74 | ||
75 | M_BRUSHDATA->m_colour = col; | |
76 | M_BRUSHDATA->m_style = Style; | |
77 | M_BRUSHDATA->m_hBrush = 0; | |
78 | ||
79 | RealizeResource(); | |
80 | ||
81 | if ( wxTheBrushList ) | |
82 | wxTheBrushList->AddBrush(this); | |
83 | } | |
84 | ||
85 | wxBrush::wxBrush(const wxBitmap& stipple) | |
86 | { | |
87 | m_refData = new wxBrushRefData; | |
88 | ||
89 | M_BRUSHDATA->m_stipple = stipple; | |
90 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
91 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
92 | else | |
93 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
94 | ||
95 | M_BRUSHDATA->m_hBrush = 0; | |
96 | ||
97 | RealizeResource(); | |
98 | ||
99 | if ( wxTheBrushList ) | |
100 | wxTheBrushList->AddBrush(this); | |
101 | } | |
102 | ||
103 | bool wxBrush::RealizeResource(void) | |
104 | { | |
105 | if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0)) | |
106 | { | |
107 | if (M_BRUSHDATA->m_style==wxTRANSPARENT) | |
108 | { | |
109 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) ::GetStockObject(NULL_BRUSH); | |
110 | return TRUE; | |
111 | } | |
112 | COLORREF ms_colour = 0 ; | |
113 | ||
114 | ms_colour = M_BRUSHDATA->m_colour.GetPixel() ; | |
115 | ||
116 | switch (M_BRUSHDATA->m_style) | |
117 | { | |
118 | /**** | |
119 | // Don't reset cbrush, wxTRANSPARENT is handled by wxBrush::SelectBrush() | |
120 | // this could save (many) time if frequently switching from | |
121 | // wxSOLID to wxTRANSPARENT, because Create... is not always called!! | |
122 | // | |
123 | // NB August 95: now create and select a Null brush instead. | |
124 | // This could be optimized as above. | |
125 | case wxTRANSPARENT: | |
126 | M_BRUSHDATA->m_hBrush = NULL; // Must always select a suitable background brush | |
127 | // - could choose white always for a quick solution | |
128 | break; | |
129 | ***/ | |
130 | case wxBDIAGONAL_HATCH: | |
131 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_BDIAGONAL,ms_colour) ; | |
132 | break ; | |
133 | case wxCROSSDIAG_HATCH: | |
134 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_DIAGCROSS,ms_colour) ; | |
135 | break ; | |
136 | case wxFDIAGONAL_HATCH: | |
137 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_FDIAGONAL,ms_colour) ; | |
138 | break ; | |
139 | case wxCROSS_HATCH: | |
140 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_CROSS,ms_colour) ; | |
141 | break ; | |
142 | case wxHORIZONTAL_HATCH: | |
143 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_HORIZONTAL,ms_colour) ; | |
144 | break ; | |
145 | case wxVERTICAL_HATCH: | |
146 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_VERTICAL,ms_colour) ; | |
147 | break ; | |
148 | case wxSTIPPLE: | |
149 | if (M_BRUSHDATA->m_stipple.Ok()) | |
150 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreatePatternBrush((HBITMAP) M_BRUSHDATA->m_stipple.GetHBITMAP()) ; | |
151 | else | |
152 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ; | |
153 | break ; | |
154 | case wxSTIPPLE_MASK_OPAQUE: | |
155 | if (M_BRUSHDATA->m_stipple.Ok() && M_BRUSHDATA->m_stipple.GetMask()) | |
156 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreatePatternBrush((HBITMAP) M_BRUSHDATA->m_stipple.GetMask()->GetMaskBitmap()); | |
157 | else | |
158 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ; | |
159 | break ; | |
160 | case wxSOLID: | |
161 | default: | |
162 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ; | |
163 | break; | |
164 | } | |
165 | #ifdef WXDEBUG_CREATE | |
166 | if (M_BRUSHDATA->m_hBrush==NULL) wxError("Cannot create brush","Internal error") ; | |
167 | #endif | |
168 | return TRUE; | |
169 | } | |
170 | else | |
171 | return FALSE; | |
172 | } | |
173 | ||
174 | WXHANDLE wxBrush::GetResourceHandle(void) | |
175 | { | |
176 | return (WXHANDLE) M_BRUSHDATA->m_hBrush; | |
177 | } | |
178 | ||
179 | bool wxBrush::FreeResource(bool WXUNUSED(force)) | |
180 | { | |
181 | if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush != 0)) | |
182 | { | |
183 | DeleteObject((HBRUSH) M_BRUSHDATA->m_hBrush); | |
184 | M_BRUSHDATA->m_hBrush = 0; | |
185 | return TRUE; | |
186 | } | |
187 | else return FALSE; | |
188 | } | |
189 | ||
190 | bool wxBrush::IsFree() const | |
191 | { | |
192 | return (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0)); | |
193 | } | |
194 | ||
195 | void wxBrush::Unshare() | |
196 | { | |
197 | // Don't change shared data | |
198 | if (!m_refData) | |
199 | { | |
200 | m_refData = new wxBrushRefData(); | |
201 | } | |
202 | else | |
203 | { | |
204 | wxBrushRefData* ref = new wxBrushRefData(*(wxBrushRefData*)m_refData); | |
205 | UnRef(); | |
206 | m_refData = ref; | |
207 | } | |
208 | } | |
209 | ||
210 | ||
211 | void wxBrush::SetColour(const wxColour& col) | |
212 | { | |
213 | Unshare(); | |
214 | ||
215 | M_BRUSHDATA->m_colour = col; | |
216 | ||
217 | RealizeResource(); | |
218 | } | |
219 | ||
220 | void wxBrush::SetColour(unsigned char r, unsigned char g, unsigned char b) | |
221 | { | |
222 | Unshare(); | |
223 | ||
224 | M_BRUSHDATA->m_colour.Set(r, g, b); | |
225 | ||
226 | RealizeResource(); | |
227 | } | |
228 | ||
229 | void wxBrush::SetStyle(int Style) | |
230 | { | |
231 | Unshare(); | |
232 | ||
233 | M_BRUSHDATA->m_style = Style; | |
234 | ||
235 | RealizeResource(); | |
236 | } | |
237 | ||
238 | void wxBrush::SetStipple(const wxBitmap& Stipple) | |
239 | { | |
240 | Unshare(); | |
241 | ||
242 | M_BRUSHDATA->m_stipple = Stipple; | |
243 | if (M_BRUSHDATA->m_stipple.GetMask()) | |
244 | M_BRUSHDATA->m_style = wxSTIPPLE_MASK_OPAQUE; | |
245 | else | |
246 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
247 | ||
248 | RealizeResource(); | |
249 | } | |
250 | ||
251 |