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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 | #if !USE_SHARED_LIBRARIES | |
37 | IMPLEMENT_DYNAMIC_CLASS(wxBrush, wxGDIObject) | |
38 | #endif | |
39 | ||
40 | wxBrushRefData::wxBrushRefData(void) | |
41 | { | |
42 | m_style = wxSOLID; | |
43 | m_hBrush = 0; | |
44 | } | |
45 | ||
46 | wxBrushRefData::wxBrushRefData(const wxBrushRefData& data) | |
47 | { | |
48 | m_style = data.m_style; | |
49 | m_stipple = data.m_stipple; | |
50 | m_colour = data.m_colour; | |
51 | m_hBrush = 0; | |
52 | } | |
53 | ||
54 | wxBrushRefData::~wxBrushRefData(void) | |
55 | { | |
56 | if ( m_hBrush ) | |
57 | ::DeleteObject((HBRUSH) m_hBrush); | |
58 | } | |
59 | ||
60 | // Brushes | |
61 | wxBrush::wxBrush(void) | |
62 | { | |
63 | if ( wxTheBrushList ) | |
64 | wxTheBrushList->AddBrush(this); | |
65 | } | |
66 | ||
67 | wxBrush::~wxBrush() | |
68 | { | |
69 | if (wxTheBrushList) | |
70 | wxTheBrushList->RemoveBrush(this); | |
71 | } | |
72 | ||
73 | wxBrush::wxBrush(const wxColour& col, int Style) | |
74 | { | |
75 | m_refData = new wxBrushRefData; | |
76 | ||
77 | M_BRUSHDATA->m_colour = col; | |
78 | M_BRUSHDATA->m_style = Style; | |
79 | M_BRUSHDATA->m_hBrush = 0; | |
80 | ||
81 | RealizeResource(); | |
82 | ||
83 | if ( wxTheBrushList ) | |
84 | wxTheBrushList->AddBrush(this); | |
85 | } | |
86 | ||
87 | wxBrush::wxBrush(const wxString& col, int Style) | |
88 | { | |
89 | m_refData = new wxBrushRefData; | |
90 | ||
91 | M_BRUSHDATA->m_colour = col; | |
92 | M_BRUSHDATA->m_style = Style; | |
93 | M_BRUSHDATA->m_hBrush = 0; | |
94 | ||
95 | RealizeResource(); | |
96 | ||
97 | if ( wxTheBrushList ) | |
98 | wxTheBrushList->AddBrush(this); | |
99 | } | |
100 | ||
101 | wxBrush::wxBrush(const wxBitmap& stipple) | |
102 | { | |
103 | m_refData = new wxBrushRefData; | |
104 | ||
105 | M_BRUSHDATA->m_style = wxSTIPPLE; | |
106 | M_BRUSHDATA->m_stipple = stipple; | |
107 | M_BRUSHDATA->m_hBrush = 0; | |
108 | ||
109 | RealizeResource(); | |
110 | ||
111 | if ( wxTheBrushList ) | |
112 | wxTheBrushList->AddBrush(this); | |
113 | } | |
114 | ||
115 | bool wxBrush::RealizeResource(void) | |
116 | { | |
117 | if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0)) | |
118 | { | |
119 | if (M_BRUSHDATA->m_style==wxTRANSPARENT) | |
120 | { | |
121 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) ::GetStockObject(NULL_BRUSH); | |
122 | return TRUE; | |
123 | } | |
124 | COLORREF ms_colour = 0 ; | |
125 | ||
126 | ms_colour = M_BRUSHDATA->m_colour.GetPixel() ; | |
127 | ||
128 | switch (M_BRUSHDATA->m_style) | |
129 | { | |
130 | /**** | |
131 | // Don't reset cbrush, wxTRANSPARENT is handled by wxBrush::SelectBrush() | |
132 | // this could save (many) time if frequently switching from | |
133 | // wxSOLID to wxTRANSPARENT, because Create... is not always called!! | |
134 | // | |
135 | // NB August 95: now create and select a Null brush instead. | |
136 | // This could be optimized as above. | |
137 | case wxTRANSPARENT: | |
138 | M_BRUSHDATA->m_hBrush = NULL; // Must always select a suitable background brush | |
139 | // - could choose white always for a quick solution | |
140 | break; | |
141 | ***/ | |
142 | case wxBDIAGONAL_HATCH: | |
143 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_BDIAGONAL,ms_colour) ; | |
144 | break ; | |
145 | case wxCROSSDIAG_HATCH: | |
146 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_DIAGCROSS,ms_colour) ; | |
147 | break ; | |
148 | case wxFDIAGONAL_HATCH: | |
149 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_FDIAGONAL,ms_colour) ; | |
150 | break ; | |
151 | case wxCROSS_HATCH: | |
152 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_CROSS,ms_colour) ; | |
153 | break ; | |
154 | case wxHORIZONTAL_HATCH: | |
155 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_HORIZONTAL,ms_colour) ; | |
156 | break ; | |
157 | case wxVERTICAL_HATCH: | |
158 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateHatchBrush(HS_VERTICAL,ms_colour) ; | |
159 | break ; | |
160 | case wxSTIPPLE: | |
161 | if (M_BRUSHDATA->m_stipple.Ok()) | |
162 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreatePatternBrush((HBITMAP) M_BRUSHDATA->m_stipple.GetHBITMAP()) ; | |
163 | else | |
164 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ; | |
165 | break ; | |
166 | case wxSOLID: | |
167 | default: | |
168 | M_BRUSHDATA->m_hBrush = (WXHBRUSH) CreateSolidBrush(ms_colour) ; | |
169 | break; | |
170 | } | |
171 | #ifdef WXDEBUG_CREATE | |
172 | if (M_BRUSHDATA->m_hBrush==NULL) wxError("Cannot create brush","Internal error") ; | |
173 | #endif | |
174 | return TRUE; | |
175 | } | |
176 | else | |
177 | return FALSE; | |
178 | } | |
179 | ||
180 | WXHANDLE wxBrush::GetResourceHandle(void) | |
181 | { | |
182 | return (WXHANDLE) M_BRUSHDATA->m_hBrush; | |
183 | } | |
184 | ||
185 | bool wxBrush::FreeResource(bool force) | |
186 | { | |
187 | if (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush != 0)) | |
188 | { | |
189 | DeleteObject((HBRUSH) M_BRUSHDATA->m_hBrush); | |
190 | M_BRUSHDATA->m_hBrush = 0; | |
191 | return TRUE; | |
192 | } | |
193 | else return FALSE; | |
194 | } | |
195 | ||
196 | bool wxBrush::IsFree(void) | |
197 | { | |
198 | return (M_BRUSHDATA && (M_BRUSHDATA->m_hBrush == 0)); | |
199 | } | |
200 | ||
201 | void wxBrush::Unshare() | |
202 | { | |
203 | // Don't change shared data | |
204 | if (!m_refData) | |
205 | { | |
206 | m_refData = new wxBrushRefData(); | |
207 | } | |
208 | else | |
209 | { | |
210 | wxBrushRefData* ref = new wxBrushRefData(*(wxBrushRefData*)m_refData); | |
211 | UnRef(); | |
212 | m_refData = ref; | |
213 | } | |
214 | } | |
215 | ||
216 | ||
217 | void wxBrush::SetColour(const wxColour& col) | |
218 | { | |
219 | Unshare(); | |
220 | ||
221 | M_BRUSHDATA->m_colour = col; | |
222 | ||
223 | RealizeResource(); | |
224 | } | |
225 | ||
226 | void wxBrush::SetColour(const wxString& col) | |
227 | { | |
228 | Unshare(); | |
229 | ||
230 | M_BRUSHDATA->m_colour = col; | |
231 | ||
232 | RealizeResource(); | |
233 | } | |
234 | ||
235 | void wxBrush::SetColour(const unsigned char r, const unsigned char g, const unsigned char b) | |
236 | { | |
237 | Unshare(); | |
238 | ||
239 | M_BRUSHDATA->m_colour.Set(r, g, b); | |
240 | ||
241 | RealizeResource(); | |
242 | } | |
243 | ||
244 | void wxBrush::SetStyle(int Style) | |
245 | { | |
246 | Unshare(); | |
247 | ||
248 | M_BRUSHDATA->m_style = Style; | |
249 | ||
250 | RealizeResource(); | |
251 | } | |
252 | ||
253 | void wxBrush::SetStipple(const wxBitmap& Stipple) | |
254 | { | |
255 | Unshare(); | |
256 | ||
257 | M_BRUSHDATA->m_stipple = Stipple; | |
258 | ||
259 | RealizeResource(); | |
260 | } | |
261 | ||
262 |