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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: slider95.cpp
3 // Purpose: wxSlider95, using the Win95 trackbar control
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 "slider95.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 #endif
26
27 #ifdef __WIN95__
28
29 #include "wx/msw/slider95.h"
30 #include "wx/msw/private.h"
31
32 #if defined(__WIN95__) && !defined(__GNUWIN32__)
33 #include <commctrl.h>
34 #endif
35
36 #if !USE_SHARED_LIBRARY
37 IMPLEMENT_DYNAMIC_CLASS(wxSlider95, wxControl)
38
39 #if WXWIN_COMPATIBILITY
40 BEGIN_EVENT_TABLE(wxSlider95, wxControl)
41 EVT_SCROLL(wxSlider95::OnScroll)
42 END_EVENT_TABLE()
43 #endif
44
45 #endif
46
47 // Slider
48 wxSlider95::wxSlider95(void)
49 {
50 m_staticValue = 0;
51 m_staticMin = 0;
52 m_staticMax = 0;
53 m_pageSize = 1;
54 m_lineSize = 1;
55 m_rangeMax = 0;
56 m_rangeMin = 0;
57 m_tickFreq = 0;
58 }
59
60 bool wxSlider95::Create(wxWindow *parent, const wxWindowID id,
61 const int value, const int minValue, const int maxValue,
62 const wxPoint& pos,
63 const wxSize& size, const long style,
64 const wxValidator& validator,
65 const wxString& name)
66 {
67 SetName(name);
68 SetValidator(validator);
69
70 if (parent) parent->AddChild(this);
71 SetBackgroundColour(parent->GetDefaultBackgroundColour()) ;
72 SetForegroundColour(parent->GetDefaultForegroundColour()) ;
73
74 m_staticValue = 0;
75 m_staticMin = 0;
76 m_staticMax = 0;
77 m_pageSize = 1;
78 m_lineSize = 1;
79 m_windowStyle = style;
80 m_tickFreq = 0;
81
82 if ( id == -1 )
83 m_windowId = (int)NewControlId();
84 else
85 m_windowId = id;
86
87 int x = pos.x;
88 int y = pos.y;
89 int width = size.x;
90 int height = size.y;
91
92 long msStyle ;
93
94 if ( m_windowStyle & wxSL_LABELS )
95 {
96 msStyle = WS_CHILD | WS_VISIBLE | WS_BORDER | SS_CENTER;
97
98 bool want3D;
99 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
100
101 m_staticValue = (WXHWND) CreateWindowEx(exStyle, "STATIC", NULL,
102 msStyle,
103 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
104 wxGetInstance(), NULL);
105
106 // Now create min static control
107 sprintf(wxBuffer, "%d", minValue);
108 m_staticMin = (WXHWND) CreateWindowEx(0, "STATIC", wxBuffer,
109 STATIC_FLAGS,
110 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
111 wxGetInstance(), NULL);
112 }
113
114 msStyle = 0;
115 if (m_windowStyle & wxSL_VERTICAL)
116 msStyle = TBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
117 else
118 msStyle = TBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
119
120 if ( m_windowStyle & wxSL_AUTOTICKS )
121 msStyle |= TBS_AUTOTICKS ;
122
123 if ( m_windowStyle & wxSL_LEFT )
124 msStyle |= TBS_LEFT;
125 else if ( m_windowStyle & wxSL_RIGHT )
126 msStyle |= TBS_RIGHT;
127 else if ( m_windowStyle & wxSL_TOP )
128 msStyle |= TBS_TOP;
129 else if ( m_windowStyle & wxSL_BOTTOM )
130 msStyle |= TBS_BOTTOM;
131 else if ( m_windowStyle & wxSL_BOTH )
132 msStyle |= TBS_BOTH;
133 else if ( ! (m_windowStyle & wxSL_AUTOTICKS) )
134 msStyle |= TBS_NOTICKS;
135
136 if ( m_windowStyle & wxSL_SELRANGE )
137 msStyle |= TBS_ENABLESELRANGE ;
138
139 HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), TRACKBAR_CLASS, wxBuffer,
140 msStyle,
141 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
142 wxGetInstance(), NULL);
143
144 m_rangeMax = maxValue;
145 m_rangeMin = minValue;
146
147 m_pageSize = (int)((maxValue-minValue)/10);
148
149 ::SendMessage(scroll_bar, TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
150 ::SendMessage(scroll_bar, TBM_SETPOS, TRUE, (LPARAM)value);
151 ::SendMessage(scroll_bar, TBM_SETPAGESIZE, 0, (LPARAM)m_pageSize);
152
153 m_hWnd = (WXHWND)scroll_bar;
154
155 SubclassWin(GetHWND());
156
157 if ( m_windowStyle & wxSL_LABELS )
158 {
159 // Finally, create max value static item
160 sprintf(wxBuffer, "%d", maxValue);
161 m_staticMax = (WXHWND) CreateWindowEx(0, "STATIC", wxBuffer,
162 STATIC_FLAGS,
163 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
164 wxGetInstance(), NULL);
165
166 SetFont(parent->GetFont());
167
168 if (GetFont())
169 {
170 // GetFont()->RealizeResource();
171 if (GetFont()->GetResourceHandle())
172 {
173 if ( m_staticMin )
174 SendMessage((HWND)m_staticMin,WM_SETFONT,
175 (WPARAM)GetFont()->GetResourceHandle(),0L);
176 if ( m_staticMax )
177 SendMessage((HWND)m_staticMax,WM_SETFONT,
178 (WPARAM)GetFont()->GetResourceHandle(),0L);
179 if (m_staticValue)
180 SendMessage((HWND)m_staticValue,WM_SETFONT,
181 (WPARAM)GetFont()->GetResourceHandle(),0L);
182 }
183 }
184 }
185
186 SetSize(x, y, width, height);
187 SetValue(value);
188
189 return TRUE;
190 }
191
192 void wxSlider95::MSWOnVScroll(const WXWORD wParam, const WXWORD pos, const WXHWND control)
193 {
194 int position = 0; // Dummy - not used in this mode
195
196 int nScrollInc;
197 wxEventType scrollEvent = wxEVT_NULL;
198 switch ( wParam )
199 {
200 case SB_TOP:
201 nScrollInc = m_rangeMax - position;
202 scrollEvent = wxEVT_SCROLL_TOP;
203 break;
204
205 case SB_BOTTOM:
206 nScrollInc = - position;
207 scrollEvent = wxEVT_SCROLL_BOTTOM;
208 break;
209
210 case SB_LINEUP:
211 nScrollInc = - GetLineSize();
212 scrollEvent = wxEVT_SCROLL_LINEUP;
213 break;
214
215 case SB_LINEDOWN:
216 nScrollInc = GetLineSize();
217 scrollEvent = wxEVT_SCROLL_LINEDOWN;
218 break;
219
220 case SB_PAGEUP:
221 nScrollInc = -GetPageSize();
222 scrollEvent = wxEVT_SCROLL_PAGEUP;
223 break;
224
225 case SB_PAGEDOWN:
226 nScrollInc = GetPageSize();
227 scrollEvent = wxEVT_SCROLL_PAGEDOWN;
228 break;
229
230 case SB_THUMBTRACK:
231 case SB_THUMBPOSITION:
232 #ifdef __WIN32__
233 nScrollInc = (signed short)pos - position;
234 #else
235 nScrollInc = pos - position;
236 #endif
237 scrollEvent = wxEVT_SCROLL_THUMBTRACK;
238 break;
239
240 default:
241 nScrollInc = 0;
242 return;
243 }
244
245 {
246
247 int newPos = (int)::SendMessage((HWND) control, TBM_GETPOS, 0, 0);
248 if (!(newPos < GetMin() || newPos > GetMax()))
249 {
250 SetValue(newPos);
251
252 wxScrollEvent event(scrollEvent, m_windowId);
253 event.SetPosition(newPos);
254 event.SetEventObject( this );
255 GetEventHandler()->ProcessEvent(event);
256 }
257 }
258 }
259
260 void wxSlider95::MSWOnHScroll(const WXWORD wParam, const WXWORD pos, const WXHWND control)
261 {
262 MSWOnVScroll(wParam, pos, control);
263 }
264
265 wxSlider95::~wxSlider95(void)
266 {
267 if (m_staticMin)
268 DestroyWindow((HWND) m_staticMin);
269 if (m_staticMax)
270 DestroyWindow((HWND) m_staticMax);
271 if (m_staticValue)
272 DestroyWindow((HWND) m_staticValue);
273 }
274
275 int wxSlider95::GetValue(void) const
276 {
277 return ::SendMessage((HWND) GetHWND(), TBM_GETPOS, 0, 0);
278 }
279
280 void wxSlider95::SetValue(const int value)
281 {
282 ::SendMessage((HWND) GetHWND(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)value);
283 if (m_staticValue)
284 {
285 sprintf(wxBuffer, "%d", value);
286 SetWindowText((HWND) m_staticValue, wxBuffer);
287 }
288 }
289
290 void wxSlider95::GetSize(int *width, int *height) const
291 {
292 RECT rect;
293 rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
294
295 wxFindMaxSize(GetHWND(), &rect);
296
297 if (m_staticMin)
298 wxFindMaxSize(m_staticMin, &rect);
299 if (m_staticMax)
300 wxFindMaxSize(m_staticMax, &rect);
301 if (m_staticValue)
302 wxFindMaxSize(m_staticValue, &rect);
303
304 *width = rect.right - rect.left;
305 *height = rect.bottom - rect.top;
306 }
307
308 void wxSlider95::GetPosition(int *x, int *y) const
309 {
310 wxWindow *parent = GetParent();
311 RECT rect;
312 rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
313
314 wxFindMaxSize(GetHWND(), &rect);
315
316 if (m_staticMin)
317 wxFindMaxSize(m_staticMin, &rect);
318 if (m_staticMax)
319 wxFindMaxSize(m_staticMax, &rect);
320 if (m_staticValue)
321 wxFindMaxSize(m_staticValue, &rect);
322
323 // Since we now have the absolute screen coords,
324 // if there's a parent we must subtract its top left corner
325 POINT point;
326 point.x = rect.left;
327 point.y = rect.top;
328 if (parent)
329 ::ScreenToClient((HWND) parent->GetHWND(), &point);
330
331 *x = point.x;
332 *y = point.y;
333 }
334
335 void wxSlider95::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags)
336 {
337 int x1 = x;
338 int y1 = y;
339 int w1 = width;
340 int h1 = height;
341
342 int currentX, currentY;
343 GetPosition(&currentX, &currentY);
344 if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
345 x1 = currentX;
346 if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
347 y1 = currentY;
348
349 char buf[300];
350
351 int x_offset = x;
352 int y_offset = y;
353
354 int cx; // slider,min,max sizes
355 int cy;
356 float cyf;
357
358 wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
359
360 if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
361 {
362 if ( m_windowStyle & wxSL_LABELS )
363 {
364 float min_len = 0.0;
365
366 GetWindowText((HWND) m_staticMin, buf, 300);
367 GetTextExtent(buf, &min_len, &cyf,NULL,NULL, GetFont());
368
369 float max_len = 0.0;
370
371 GetWindowText((HWND) m_staticMax, buf, 300);
372 GetTextExtent(buf, &max_len, &cyf,NULL,NULL, GetFont());
373 if (m_staticValue)
374 {
375 int new_width = (int)(wxMax(min_len, max_len));
376 int valueHeight = (int)cyf;
377 #ifdef __WIN32__
378 // For some reason, under Win95, the text edit control has
379 // a lot of space before the first character
380 new_width += 3*cx;
381 #endif
382 // The height needs to be a bit bigger under Win95 if using native
383 // 3D effects.
384 valueHeight = (int) (valueHeight * 1.5) ;
385 MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
386 x_offset += new_width + cx;
387 }
388
389 MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
390 x_offset += (int)(min_len + cx);
391
392 int slider_length = (int)(w1 - x_offset - max_len - cx);
393
394 int slider_height = h1;
395 if (slider_height < 0 )
396 slider_height = 20;
397
398 // Slider must have a minimum/default length/height
399 if (slider_length < 100)
400 slider_length = 100;
401
402 MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_length, slider_height, TRUE);
403 x_offset += slider_length + cx;
404
405 MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
406 }
407 else
408 {
409 // No labels
410 if ( w1 < 0 )
411 w1 = 200;
412 if ( h1 < 0 )
413 h1 = 20;
414 MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
415 }
416 }
417 else
418 {
419 if ( m_windowStyle & wxSL_LABELS )
420 {
421 float min_len;
422 GetWindowText((HWND) m_staticMin, buf, 300);
423 GetTextExtent(buf, &min_len, &cyf,NULL,NULL,GetFont());
424
425 float max_len;
426 GetWindowText((HWND) m_staticMax, buf, 300);
427 GetTextExtent(buf, &max_len, &cyf,NULL,NULL, GetFont());
428
429 if (m_staticValue)
430 {
431 int new_width = (int)(wxMax(min_len, max_len));
432 int valueHeight = (int)cyf;
433 /*** Suggested change by George Tasker - remove this block...
434 #ifdef __WIN32__
435 // For some reason, under Win95, the text edit control has
436 // a lot of space before the first character
437 new_width += 3*cx;
438 #endif
439 ... and replace with following line: */
440 new_width += cx;
441
442 // The height needs to be a bit bigger under Win95 if using native
443 // 3D effects.
444 valueHeight = (int) (valueHeight * 1.5) ;
445
446 MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
447 y_offset += valueHeight;
448 }
449
450 MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
451 y_offset += cy;
452
453 int slider_length = (int)(h1 - y_offset - cy - cy);
454
455 int slider_width = w1;
456 if (slider_width < 0 )
457 slider_width = 20;
458
459 // Slider must have a minimum/default length
460 if (slider_length < 100)
461 slider_length = 100;
462
463 MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_width, slider_length, TRUE);
464 y_offset += slider_length;
465
466 MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
467 }
468 else
469 {
470 // No labels
471 if ( w1 < 0 )
472 w1 = 20;
473 if ( h1 < 0 )
474 h1 = 200;
475 MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
476 }
477 }
478 }
479
480 void wxSlider95::SetRange(const int minValue, const int maxValue)
481 {
482 m_rangeMin = minValue;
483 m_rangeMax = maxValue;
484
485 ::SendMessage((HWND) GetHWND(), TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
486
487 char buf[40];
488 if ( m_staticMin )
489 {
490 sprintf(buf, "%d", m_rangeMin);
491 SetWindowText((HWND) m_staticMin, buf);
492 }
493
494 if ( m_staticMax )
495 {
496 sprintf(buf, "%d", m_rangeMax);
497 SetWindowText((HWND) m_staticMax, buf);
498 }
499 }
500
501 WXHBRUSH wxSlider95::OnCtlColor(const WXHDC pDC, const WXHWND pWnd, const WXUINT nCtlColor,
502 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
503 {
504 if ( nCtlColor == CTLCOLOR_SCROLLBAR )
505 return 0;
506
507 // Otherwise, it's a static
508 if (GetParent()->GetTransparentBackground())
509 SetBkMode((HDC) pDC, TRANSPARENT);
510 else
511 SetBkMode((HDC) pDC, OPAQUE);
512
513 ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
514 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
515
516 wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
517 return (WXHBRUSH) backgroundBrush->GetResourceHandle();
518 }
519
520 // For trackbars only
521 void wxSlider95::SetTickFreq(const int n, const int pos)
522 {
523 m_tickFreq = n;
524 ::SendMessage( (HWND) GetHWND(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
525 }
526
527 void wxSlider95::SetPageSize(const int pageSize)
528 {
529 ::SendMessage( (HWND) GetHWND(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
530 m_pageSize = pageSize;
531 }
532
533 int wxSlider95::GetPageSize(void) const
534 {
535 return m_pageSize;
536 }
537
538 void wxSlider95::ClearSel(void)
539 {
540 ::SendMessage( (HWND) GetHWND(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0 );
541 }
542
543 void wxSlider95::ClearTicks(void)
544 {
545 ::SendMessage( (HWND) GetHWND(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0 );
546 }
547
548 void wxSlider95::SetLineSize(const int lineSize)
549 {
550 m_lineSize = lineSize;
551 ::SendMessage( (HWND) GetHWND(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize );
552 }
553
554 int wxSlider95::GetLineSize(void) const
555 {
556 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETLINESIZE, (WPARAM) 0, (LPARAM) 0 );
557 }
558
559 int wxSlider95::GetSelEnd(void) const
560 {
561 return (int) ::SendMessage( (HWND) GetHWND(), TBM_SETSELEND, (WPARAM) 0, (LPARAM) 0 );
562 }
563
564 int wxSlider95::GetSelStart(void) const
565 {
566 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETSELSTART, (WPARAM) 0, (LPARAM) 0 );
567 }
568
569 void wxSlider95::SetSelection(const int minPos, const int maxPos)
570 {
571 ::SendMessage( (HWND) GetHWND(), TBM_SETSEL, (WPARAM) TRUE, (LPARAM) MAKELONG( minPos, maxPos) );
572 }
573
574 void wxSlider95::SetThumbLength(const int len)
575 {
576 ::SendMessage( (HWND) GetHWND(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0 );
577 }
578
579 int wxSlider95::GetThumbLength(void) const
580 {
581 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETTHUMBLENGTH, (WPARAM) 0, (LPARAM) 0 );
582 }
583
584 void wxSlider95::SetTick(const int tickPos)
585 {
586 ::SendMessage( (HWND) GetHWND(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
587 }
588
589 bool wxSlider95::ContainsHWND(WXHWND hWnd) const
590 {
591 return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
592 }
593
594 #if WXWIN_COMPATIBILITY
595 // Backward compatibility
596 void wxSlider95::OnScroll(wxScrollEvent& event)
597 {
598 wxEventType oldEvent = event.GetEventType();
599 event.SetEventType( wxEVT_COMMAND_SLIDER_UPDATED );
600 if ( !GetEventHandler()->ProcessEvent(event) )
601 {
602 event.SetEventType( oldEvent );
603 if (!GetParent()->GetEventHandler()->ProcessEvent(event))
604 event.Skip();
605 }
606 }
607 #endif
608
609 void wxSlider95::Command (wxCommandEvent & event)
610 {
611 SetValue (event.GetInt());
612 ProcessCommand (event);
613 }
614
615 bool wxSlider95::Show(const bool show)
616 {
617 wxWindow::Show(show);
618
619 int cshow;
620 if (show)
621 cshow = SW_SHOW;
622 else
623 cshow = SW_HIDE;
624
625 if(m_staticValue)
626 ShowWindow((HWND) m_staticValue, (BOOL)cshow);
627 if(m_staticMin)
628 ShowWindow((HWND) m_staticMin, (BOOL)cshow);
629 if(m_staticMax)
630 ShowWindow((HWND) m_staticMax, (BOOL)cshow);
631 return TRUE;
632 }
633
634 #endif
635 // __WIN95__
636