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1 | // ============================================================================ | |
2 | // headers | |
3 | // ============================================================================ | |
4 | ||
5 | #ifdef __GNUG__ | |
6 | #pragma implementation "wxLEDNumberCtrl.h" | |
7 | #endif | |
8 | ||
9 | #include "wx/wxprec.h" | |
10 | ||
11 | #ifdef __BORLANDC__ | |
12 | #pragma hdrstop | |
13 | #endif //__BORLANDC__ | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/dcclient.h" | |
17 | #include "wx/dcmemory.h" | |
18 | #include "wx/intl.h" | |
19 | #endif | |
20 | ||
21 | #include "wx/gizmos/ledctrl.h" | |
22 | ||
23 | // ---------------------------------------------------------------------------- | |
24 | // constants | |
25 | // ---------------------------------------------------------------------------- | |
26 | ||
27 | // A LED digit is build up like this, with maximum 7 Lines : | |
28 | // | |
29 | // 111 | |
30 | // 6 2 | |
31 | // 777 | |
32 | // 5 3 | |
33 | // 444 | |
34 | // | |
35 | // Each number contains combinations of the lines, and they are set up below. | |
36 | ||
37 | const int LINE1 = 1; | |
38 | const int LINE2 = 2; | |
39 | const int LINE3 = 4; | |
40 | const int LINE4 = 8; | |
41 | const int LINE5 = 16; | |
42 | const int LINE6 = 32; | |
43 | const int LINE7 = 64; | |
44 | ||
45 | const int DIGIT0 = LINE1 | LINE2 | LINE3 | LINE4 | LINE5 | LINE6; | |
46 | const int DIGIT1 = LINE2 | LINE3; | |
47 | const int DIGIT2 = LINE1 | LINE2 | LINE4 | LINE5 | LINE7; | |
48 | const int DIGIT3 = LINE1 | LINE2 | LINE3 | LINE4 | LINE7; | |
49 | const int DIGIT4 = LINE2 | LINE3 | LINE6 | LINE7; | |
50 | const int DIGIT5 = LINE1 | LINE3 | LINE4 | LINE6 | LINE7; | |
51 | const int DIGIT6 = LINE1 | LINE3 | LINE4 | LINE5 | LINE6 | LINE7; | |
52 | const int DIGIT7 = LINE1 | LINE2 | LINE3; | |
53 | const int DIGIT8 = LINE1 | LINE2 | LINE3 | LINE4 | LINE5 | LINE6 | LINE7; | |
54 | const int DIGIT9 = LINE1 | LINE2 | LINE3 | LINE6 | LINE7; | |
55 | const int DASH = LINE7; | |
56 | ||
57 | const int DIGITALL = -1; | |
58 | ||
59 | // ============================================================================ | |
60 | // wxLEDNumberCtrl class implementation | |
61 | // ============================================================================ | |
62 | ||
63 | wxLEDNumberCtrl::wxLEDNumberCtrl() | |
64 | : m_Alignment(wxLED_ALIGN_LEFT), | |
65 | m_LineMargin(-1), | |
66 | m_DigitMargin(-1), | |
67 | m_LineLength(-1), | |
68 | m_LineWidth(-1), | |
69 | m_DrawFaded(FALSE), | |
70 | m_LeftStartPos(-1) | |
71 | { | |
72 | } | |
73 | ||
74 | ||
75 | wxLEDNumberCtrl::wxLEDNumberCtrl(wxWindow *parent, wxWindowID id, | |
76 | const wxPoint& pos, const wxSize& size, | |
77 | long style) | |
78 | : m_Alignment(wxLED_ALIGN_LEFT), | |
79 | m_LineMargin(-1), | |
80 | m_DigitMargin(-1), | |
81 | m_LineLength(-1), | |
82 | m_LineWidth(-1), | |
83 | m_DrawFaded(FALSE), | |
84 | m_LeftStartPos(-1) | |
85 | { | |
86 | Create(parent, id, pos, size, style); | |
87 | } | |
88 | ||
89 | ||
90 | bool wxLEDNumberCtrl::Create(wxWindow *parent, wxWindowID id, | |
91 | const wxPoint& pos, const wxSize& size, | |
92 | long style) | |
93 | { | |
94 | bool RetVal = wxControl::Create(parent, id, pos, size, style); | |
95 | ||
96 | if ((style & wxLED_DRAW_FADED) != 0) | |
97 | SetDrawFaded(TRUE); | |
98 | if ((style & wxLED_ALIGN_MASK) != 0) | |
99 | SetAlignment((wxLEDValueAlign)(style & wxLED_ALIGN_MASK)); | |
100 | ||
101 | SetBackgroundColour(*wxBLACK); | |
102 | SetForegroundColour(*wxGREEN); | |
103 | ||
104 | return RetVal; | |
105 | } | |
106 | ||
107 | ||
108 | void wxLEDNumberCtrl::SetAlignment(wxLEDValueAlign Alignment, bool Redraw) | |
109 | { | |
110 | if (Alignment != m_Alignment) | |
111 | { | |
112 | m_Alignment = Alignment; | |
113 | RecalcInternals(GetClientSize()); | |
114 | ||
115 | if (Redraw) | |
116 | Refresh(FALSE); | |
117 | } | |
118 | } | |
119 | ||
120 | ||
121 | void wxLEDNumberCtrl::SetDrawFaded(bool DrawFaded, bool Redraw) | |
122 | { | |
123 | if (DrawFaded != m_DrawFaded) | |
124 | { | |
125 | m_DrawFaded = DrawFaded; | |
126 | ||
127 | if (Redraw) | |
128 | Refresh(FALSE); | |
129 | } | |
130 | } | |
131 | ||
132 | ||
133 | void wxLEDNumberCtrl::SetValue(wxString const &Value, bool Redraw) | |
134 | { | |
135 | if (Value != m_Value) | |
136 | { | |
137 | if (!Value.IsEmpty()) | |
138 | { | |
139 | for(size_t i=0; i<Value.Length(); i++) { | |
140 | wxChar ch = Value[i]; | |
141 | wxASSERT_MSG((ch>='0' && ch<='9') || ch=='-' || ch==' ', | |
142 | wxT("wxLEDNumberCtrl can only display numeric string values.")); | |
143 | } | |
144 | } | |
145 | ||
146 | m_Value = Value; | |
147 | RecalcInternals(GetClientSize()); | |
148 | ||
149 | if (Redraw) | |
150 | Refresh(FALSE); | |
151 | } | |
152 | } | |
153 | ||
154 | ||
155 | BEGIN_EVENT_TABLE(wxLEDNumberCtrl, wxControl) | |
156 | EVT_ERASE_BACKGROUND(wxLEDNumberCtrl::OnEraseBackground) | |
157 | EVT_PAINT(wxLEDNumberCtrl::OnPaint) | |
158 | EVT_SIZE(wxLEDNumberCtrl::OnSize) | |
159 | END_EVENT_TABLE() | |
160 | ||
161 | ||
162 | void wxLEDNumberCtrl::OnEraseBackground(wxEraseEvent &Event) | |
163 | { | |
164 | } | |
165 | ||
166 | ||
167 | void wxLEDNumberCtrl::OnPaint(wxPaintEvent &Event) | |
168 | { | |
169 | wxPaintDC Dc(this); | |
170 | ||
171 | int Width, Height; | |
172 | GetClientSize(&Width, &Height); | |
173 | ||
174 | wxBitmap *pMemoryBitmap = new wxBitmap(Width, Height); | |
175 | wxMemoryDC MemDc; | |
176 | ||
177 | MemDc.SelectObject(*pMemoryBitmap); | |
178 | MemDc.BeginDrawing(); | |
179 | ||
180 | // Draw background. | |
181 | MemDc.SetBrush(wxBrush(GetBackgroundColour(), wxSOLID)); | |
182 | MemDc.DrawRectangle(wxRect(0, 0, Width, Height)); | |
183 | MemDc.SetBrush(wxNullBrush); | |
184 | ||
185 | // Iterate each digit in the value, and draw. | |
186 | const int DigitCount = m_Value.Len(); | |
187 | for (int i = 0; i < DigitCount; ++i) | |
188 | { | |
189 | // Draw faded lines if wanted. | |
190 | if (m_DrawFaded) | |
191 | DrawDigit(MemDc, DIGITALL, i); | |
192 | ||
193 | // Draw the digits. | |
194 | switch (m_Value[i]) | |
195 | { | |
196 | case '0' : | |
197 | DrawDigit(MemDc, DIGIT0, i); | |
198 | break; | |
199 | case '1' : | |
200 | DrawDigit(MemDc, DIGIT1, i); | |
201 | break; | |
202 | case '2' : | |
203 | DrawDigit(MemDc, DIGIT2, i); | |
204 | break; | |
205 | case '3' : | |
206 | DrawDigit(MemDc, DIGIT3, i); | |
207 | break; | |
208 | case '4' : | |
209 | DrawDigit(MemDc, DIGIT4, i); | |
210 | break; | |
211 | case '5' : | |
212 | DrawDigit(MemDc, DIGIT5, i); | |
213 | break; | |
214 | case '6' : | |
215 | DrawDigit(MemDc, DIGIT6, i); | |
216 | break; | |
217 | case '7' : | |
218 | DrawDigit(MemDc, DIGIT7, i); | |
219 | break; | |
220 | case '8' : | |
221 | DrawDigit(MemDc, DIGIT8, i); | |
222 | break; | |
223 | case '9' : | |
224 | DrawDigit(MemDc, DIGIT9, i); | |
225 | break; | |
226 | case '-' : | |
227 | DrawDigit(MemDc, DASH, i); | |
228 | break; | |
229 | case ' ' : | |
230 | // just skip it | |
231 | break; | |
232 | default : | |
233 | wxFAIL_MSG(wxT("Unknown digit value")); | |
234 | break; | |
235 | } | |
236 | } | |
237 | ||
238 | MemDc.EndDrawing(); | |
239 | ||
240 | // Blit the memory dc to screen. | |
241 | Dc.Blit(0, 0, Width, Height, &MemDc, 0, 0, wxCOPY); | |
242 | delete pMemoryBitmap; | |
243 | } | |
244 | ||
245 | ||
246 | void wxLEDNumberCtrl::DrawDigit(wxDC &Dc, int Digit, int Column) | |
247 | { | |
248 | wxColour LineColor(GetForegroundColour()); | |
249 | ||
250 | if (Digit == DIGITALL) | |
251 | { | |
252 | const int R = LineColor.Red() / 3; | |
253 | const int G = LineColor.Green() / 3; | |
254 | const int B = LineColor.Blue() / 3; | |
255 | ||
256 | LineColor.Set(R, G, B); | |
257 | } | |
258 | ||
259 | int XPos = m_LeftStartPos; | |
260 | ||
261 | if (Column > 0) | |
262 | XPos += (Column * m_LineLength) + (m_DigitMargin) * Column; | |
263 | ||
264 | // Create a pen and draw the lines. | |
265 | wxPen Pen(LineColor, m_LineWidth, wxSOLID); | |
266 | Dc.SetPen(Pen); | |
267 | ||
268 | if ((Digit & LINE1)) | |
269 | { | |
270 | Dc.DrawLine(XPos + m_LineMargin*2, m_LineMargin, | |
271 | XPos + m_LineLength, m_LineMargin); | |
272 | } | |
273 | ||
274 | if (Digit & LINE2) | |
275 | { | |
276 | Dc.DrawLine(XPos + m_LineLength + m_LineMargin, m_LineMargin*2, | |
277 | XPos + m_LineLength + m_LineMargin, m_LineLength + (m_LineMargin*2)); | |
278 | } | |
279 | ||
280 | if (Digit & LINE3) | |
281 | { | |
282 | Dc.DrawLine(XPos + m_LineLength + m_LineMargin, m_LineLength + (m_LineMargin*4), | |
283 | XPos + m_LineLength + m_LineMargin, m_LineLength*2 + (m_LineMargin*3)); | |
284 | } | |
285 | ||
286 | if (Digit & LINE4) | |
287 | { | |
288 | Dc.DrawLine(XPos + m_LineMargin*2, m_LineLength*2 + (m_LineMargin*4), | |
289 | XPos + m_LineLength, m_LineLength*2 + (m_LineMargin*4)); | |
290 | } | |
291 | ||
292 | if (Digit & LINE5) | |
293 | { | |
294 | Dc.DrawLine(XPos + m_LineMargin, m_LineLength + (m_LineMargin*4), | |
295 | XPos + m_LineMargin, m_LineLength*2 + (m_LineMargin*3)); | |
296 | } | |
297 | ||
298 | if (Digit & LINE6) | |
299 | { | |
300 | Dc.DrawLine(XPos + m_LineMargin, m_LineMargin*2, | |
301 | XPos + m_LineMargin, m_LineLength + (m_LineMargin*2)); | |
302 | } | |
303 | ||
304 | if (Digit & LINE7) | |
305 | { | |
306 | Dc.DrawLine(XPos + m_LineMargin*2, m_LineLength + (m_LineMargin*3), | |
307 | XPos + m_LineMargin + m_LineLength - m_LineMargin, m_LineLength + (m_LineMargin*3)); | |
308 | } | |
309 | ||
310 | Dc.SetPen(wxNullPen); | |
311 | } | |
312 | ||
313 | ||
314 | void wxLEDNumberCtrl::RecalcInternals(const wxSize &CurrentSize) | |
315 | { | |
316 | const int Height = CurrentSize.GetHeight(); | |
317 | ||
318 | if ((Height * 0.07) < 1) | |
319 | m_LineMargin = 1; | |
320 | else | |
321 | m_LineMargin = Height * 0.07; | |
322 | ||
323 | if ((Height * 0.35) < 1) | |
324 | m_LineLength = 1; | |
325 | else | |
326 | m_LineLength = Height * 0.35; | |
327 | ||
328 | m_LineWidth = m_LineMargin; | |
329 | ||
330 | m_DigitMargin = m_LineMargin * 4; | |
331 | ||
332 | const int ValueWidth = (m_LineLength + m_DigitMargin) * m_Value.Len(); | |
333 | const int ClientWidth = CurrentSize.GetWidth(); | |
334 | ||
335 | switch (m_Alignment) | |
336 | { | |
337 | case wxLED_ALIGN_LEFT : | |
338 | m_LeftStartPos = 0; | |
339 | break; | |
340 | case wxLED_ALIGN_RIGHT : | |
341 | m_LeftStartPos = ClientWidth - ValueWidth; | |
342 | break; | |
343 | case wxLED_ALIGN_CENTER : | |
344 | m_LeftStartPos = (ClientWidth - ValueWidth) / 2; | |
345 | break; | |
346 | default : | |
347 | wxFAIL_MSG(wxT("Unknown alignent value for wxLEDNumberCtrl.")); | |
348 | break; | |
349 | } | |
350 | } | |
351 | ||
352 | ||
353 | void wxLEDNumberCtrl::OnSize(wxSizeEvent &Event) | |
354 | { | |
355 | RecalcInternals(Event.GetSize()); | |
356 | ||
357 | Event.Skip(); | |
358 | } |