This source file includes following definitions.
- MessageReceived
- BF_GUI_ViewEdit_PulseThread
- AttachedToWindow
- Pulse
- Draw
- DrawBody
- SetText
- MakeFocus
- DrawCursor
- SaveToMessage
- Enable
- Enabled
- OnEnable
- OnKeyDown
- KeyDown
- ClearSelecting
- NavGo
1 #include <stdio.h>
2
3 #include "BF_Msg.h"
4 #include "BF_GUI_Func.h"
5 #include "BF_GUI_DlgViews.h"
6 #include "BF_GUI_WinMain.h"
7
8 #include <Clipboard.h>
9
10
11 BF_GUI_ViewEdit::BF_GUI_ViewEdit(
12 const BRect & o_Rect,
13 const char *pc_Name,
14 const char *pc_Value,
15 uint32 i_FollowMode,
16 uint32 i_Flags
17 )
18 :BF_GUI_DialogView(o_Rect,pc_Name,i_FollowMode,i_Flags|B_WILL_DRAW)
19 {
20 if(pc_Value) sValue = pc_Value;
21
22 idThreadPulse = 0;
23 iNavIndex = sValue.LengthUTF8();
24 iNavFirstChar = 0;
25 bSelected = true;
26 bSysKeysHandle = true;
27 bCursorActive = true;
28
29 SetViewColor(B_TRANSPARENT_COLOR);
30 bPulseCursorShow = true;
31
32 bParentCall = true;
33 bAlwaysCursor = false;
34 oColBack = SYS_COLOR(BF_COLOR_DIALOG_BUTTON_FOCUS);
35 oColSel = SYS_COLOR(BF_COLOR_DIALOG_BUTTON_TEXT);
36
37 iDisableCount = 0;
38 }
39
40 BF_GUI_ViewEdit::~BF_GUI_ViewEdit()
41 {
42 while(B_OK!=kill_thread(idThreadPulse));
43 printf("BF_GUI_ViewEdit::~BF_GUI_ViewEdit()\n");
44 }
45
46 void
47 BF_GUI_ViewEdit::MessageReceived(BMessage* po_Message)
48 {
49 switch(po_Message->what){
50 case B_COPY:{
51 if(be_clipboard->Lock()){
52 be_clipboard->Clear();
53 BMessage *po = be_clipboard->Data();
54 po->MakeEmpty();
55 po->AddData("text/plain", B_MIME_TYPE, sValue.String(),sValue.Length());
56 be_clipboard->Commit();
57 be_clipboard->Unlock();
58 }
59 break;}
60 case B_PASTE:{
61 if(!be_clipboard->Lock()) return;
62 BMessage *po = be_clipboard->Data();
63 const char *pcData=NULL;
64 int32 iTextLen;
65 if(!po || B_OK!=po->FindData("text/plain",B_MIME_TYPE,(const void**)&pcData,&iTextLen) || !pcData) return;
66 if(iTextLen<=0) return;
67
68
69 char pcBuffer[iTextLen+1];
70 memcpy(pcBuffer,pcData,iTextLen);
71 pcBuffer[iTextLen] = '\0';
72
73 SetText(pcBuffer,true);
74 be_clipboard->Unlock();
75 break;}
76 case BF_MSG_PULSE:
77 Pulse();
78 break;
79 default:
80 BView::MessageReceived(po_Message);
81 }
82 }
83
84 int32
85 BF_GUI_ViewEdit_PulseThread(void *data)
86 {
87 ASSERT(data);
88 BView *poView = (BView*)data;
89 BMessage oMessage(BF_MSG_PULSE);
90 BMessenger oMessenger(poView);
91
92 while(true){
93 snooze(200000);
94 oMessenger.SendMessage(&oMessage);
95 }
96 }
97
98
99 void
100 BF_GUI_ViewEdit::AttachedToWindow(void)
101 {
102 BView::AttachedToWindow();
103
104
105 idThreadPulse = spawn_thread(BF_GUI_ViewEdit_PulseThread,"BeFar:edit_pulse",B_THREAD_SUSPENDED,(void*)this);
106 ASSERT(idThreadPulse>0,"can`t start thread BeFar:edit_pulse\n");
107 ASSERT(B_OK==resume_thread(idThreadPulse));
108 set_thread_priority(idThreadPulse,1);
109 }
110
111 void
112 BF_GUI_ViewEdit::Pulse(void)
113 {
114 bPulseCursorShow = !bPulseCursorShow;
115 if(bCursorActive) DrawCursor(bPulseCursorShow && (Window()->IsActive() || bAlwaysCursor));
116 }
117
118 void
119 BF_GUI_ViewEdit::Draw(BRect o_Rect)
120 {
121
122 DrawBody(o_Rect);
123
124 DrawCursor(bPulseCursorShow);
125 }
126
127 void
128 BF_GUI_ViewEdit::DrawBody(BRect o_Rect)
129 {
130 char *pcText=(char*)sValue.String()+ PCharCharPosInBytes_UTF8(sValue.String(),iNavFirstChar) ;
131 BRect oRect = Bounds();
132
133 SetHighColor(oColBack);
134 FillRect(oRect);
135
136 if(bSelected){
137 BRect oRect1(oRect);
138 oRect1.right = oRect1.left+1+StringWidth(pcText);
139 SetHighColor(oColSel);
140 FillRect(oRect1);
141 }
142
143
144 if(bSelected){
145 SetHighColor(oColBack);
146 SetLowColor(oColSel);
147 }else{
148 SetHighColor(oColSel);
149 SetLowColor(oColBack);
150 }
151 MovePenTo(1,oRect.Height()-poFont->fDescent);
152 DrawString(pcText);
153 }
154
155 void
156 BF_GUI_ViewEdit::SetText(const char *pc_NewText,bool b_GoEnd)
157 {
158 ASSERT(pc_NewText);
159 iNavIndex = 0;
160 iNavFirstChar = 0;
161 sValue = pc_NewText;
162 Invalidate(Bounds());
163
164 if(b_GoEnd) NavGo(sValue.Length());
165 }
166
167 void
168 BF_GUI_ViewEdit::MakeFocus(bool focused)
169 {
170 BView::MakeFocus(focused);
171 if(focused){
172 resume_thread(idThreadPulse);
173 DrawCursor(TRUE);
174 }else{
175 suspend_thread(idThreadPulse);
176 if(!bAlwaysCursor) DrawCursor(FALSE);
177 }
178 }
179
180 void
181 BF_GUI_ViewEdit::DrawCursor(bool b_Show)
182 {
183
184
185 if(!bAlwaysCursor && !IsFocus()) b_Show = false;
186
187 float fWidth = 0;
188 BRect oRect(Bounds());
189 bool bReqFullDrawing=false;
190
191 if(iNavIndex<iNavFirstChar){
192 iNavFirstChar = iNavIndex;
193 bReqFullDrawing = true;
194 }
195
196 if(iNavIndex>0){
197 BL_String s;
198 while(TRUE){
199 s = sValue;
200
201 s.RemoveUTF8(iNavIndex,s.LengthUTF8()-iNavIndex);
202
203
204 s.RemoveUTF8(0,iNavFirstChar);
205
206 fWidth = poFont->oFont.StringWidth(s.String());
207 if((fWidth+1)>=oRect.Width()){
208 iNavFirstChar++;
209 bReqFullDrawing = true;
210 continue;
211 }
212 break;
213 }
214 }
215
216 if(bReqFullDrawing){
217 DrawBody(Bounds());
218 return;
219 }
220
221
222 if(b_Show) SetHighColor(oColSel);
223 else SetHighColor(oColBack);
224 BPoint o1(1+fWidth,0),o2(o1.x,oRect.Height());
225 StrokeLine(o1,o2);
226
227 if(!b_Show){
228 SetHighColor(oColSel);
229 SetLowColor(oColBack);
230
231 BL_String s;
232 s.AppendUTF8( sValue.StringUTF8(iNavIndex),1);
233
234 o1.y = oRect.Height()-poFont->fDescent;
235
236 DrawString(s.String(),o1);
237
238 }
239
240 }
241
242 void
243 BF_GUI_ViewEdit::SaveToMessage(BMessage *po_Message)
244 {
245 po_Message->AddString(Name(),sValue.String());
246 }
247
248 void
249 BF_GUI_ViewEdit::Enable(bool b_Enable)
250 {
251 if(b_Enable && iDisableCount==1){
252 SetFlags(B_WILL_DRAW|B_FRAME_EVENTS|B_NAVIGABLE);
253 }else
254 if(!b_Enable && iDisableCount==0){
255 SetFlags(B_WILL_DRAW|B_FRAME_EVENTS);
256 }
257
258 iDisableCount += !b_Enable?+1:-1;
259 ASSERT(iDisableCount>=0);
260
261 if(iDisableCount==0 && b_Enable) OnEnable(true);
262 if(iDisableCount==1 && !b_Enable) OnEnable(false);
263 }
264
265 bool
266 BF_GUI_ViewEdit::Enabled()
267 {
268 return iDisableCount==0 ;
269 }
270
271 void
272 BF_GUI_ViewEdit::OnEnable(bool b_Enable)
273 {
274 }
275
276 #include <UTF8.h>
277
278 bool
279 BF_GUI_ViewEdit::OnKeyDown(const char *bytes, int32 numBytes)
280 {
281 printf(" chars : %i,%i count:%i\n",(unsigned)bytes[0],bytes[1],numBytes);
282
283 if(bSysKeysHandle && numBytes==1 && bytes[0]==B_RIGHT_ARROW){
284 NavGo(iNavIndex+1);
285 }else
286 if(bSysKeysHandle && numBytes==1 && bytes[0]==B_LEFT_ARROW){
287 NavGo(iNavIndex-1);
288 }else
289 if(bSysKeysHandle && numBytes==1 && bytes[0]==B_HOME){
290 NavGo(0);
291 }else
292 if(bSysKeysHandle && numBytes==1 && bytes[0]==B_END){
293 NavGo(sValue.LengthUTF8());
294 }else
295 if(numBytes==1 && bytes[0]==B_BACKSPACE){
296 ClearSelecting(true);
297 if(iNavIndex<=0) return false;
298 sValue.RemoveUTF8(iNavIndex-1,1);
299 NavGo(iNavIndex-1,true);
300 }else
301 if(numBytes==1 && bytes[0]==B_DELETE){
302 if(sValue=="" || !bSysKeysHandle) return false;
303 ClearSelecting(true);
304 if(iNavIndex == sValue.Length()) return true;
305 sValue.RemoveUTF8(iNavIndex,1);
306 Draw(Bounds());
307 }else
308 if(bParentCall && KeyDownExt(bytes,numBytes)) return true ;else
309 if((1==numBytes && bytes[0]>31) || (2==numBytes)){
310 ClearSelecting(true);
311 sValue.InsertUTF8(bytes,1,iNavIndex);
312 NavGo(iNavIndex+1,true);
313 }else
314 return false;
315 return true;
316 }
317
318 void
319 BF_GUI_ViewEdit::KeyDown(const char *bytes, int32 numBytes)
320 {
321 if(!OnKeyDown(bytes,numBytes)) BView::KeyDown(bytes,numBytes);
322 }
323
324 void
325 BF_GUI_ViewEdit::ClearSelecting(bool b_Remove)
326 {
327 if(!bSelected) return;
328 if(b_Remove){
329 sValue = "";
330 iNavIndex = 0;
331 iNavFirstChar = 0;
332 }
333 bSelected = false;
334 Draw(Bounds());
335
336 }
337
338 void
339 BF_GUI_ViewEdit::NavGo(int32 i_NewCursor,bool b_FullRedraw)
340 {
341 ClearSelecting();
342
343 if(i_NewCursor>sValue.LengthUTF8()) i_NewCursor = sValue.LengthUTF8();
344 if(i_NewCursor<0) i_NewCursor = 0;
345
346 if(i_NewCursor==iNavIndex) return;
347
348 if(b_FullRedraw){
349 iNavIndex = i_NewCursor;
350 Draw(Bounds());
351 }else{
352 DrawCursor(false);
353 iNavIndex = i_NewCursor;
354 DrawCursor(true);
355 }
356 }
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*/
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