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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, wxWindowID id,
61 int value, int minValue, int maxValue,
62 const wxPoint& pos,
63 const wxSize& size, 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(WXWORD wParam, WXWORD pos, 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(WXWORD wParam, WXWORD pos, 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(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 // We may be faking the client origin.
332 // So a window that's really at (0, 30) may appear
333 // (to wxWin apps) to be at (0, 0).
334 if (GetParent())
335 {
336 wxPoint pt(GetParent()->GetClientAreaOrigin());
337 point.x -= pt.x;
338 point.y -= pt.y;
339 }
340 *x = point.x;
341 *y = point.y;
342 }
343
344 void wxSlider95::SetSize(int x, int y, int width, int height, int sizeFlags)
345 {
346 int x1 = x;
347 int y1 = y;
348 int w1 = width;
349 int h1 = height;
350
351 int currentX, currentY;
352 GetPosition(&currentX, &currentY);
353 if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
354 x1 = currentX;
355 if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
356 y1 = currentY;
357
358 AdjustForParentClientOrigin(x1, y1, sizeFlags);
359
360 char buf[300];
361
362 int x_offset = x;
363 int y_offset = y;
364
365 int cx; // slider,min,max sizes
366 int cy;
367 int cyf;
368
369 wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
370
371 if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
372 {
373 if ( m_windowStyle & wxSL_LABELS )
374 {
375 int min_len = 0;
376
377 GetWindowText((HWND) m_staticMin, buf, 300);
378 GetTextExtent(buf, &min_len, &cyf,NULL,NULL, GetFont());
379
380 int max_len = 0;
381
382 GetWindowText((HWND) m_staticMax, buf, 300);
383 GetTextExtent(buf, &max_len, &cyf,NULL,NULL, GetFont());
384 if (m_staticValue)
385 {
386 int new_width = (int)(wxMax(min_len, max_len));
387 int valueHeight = (int)cyf;
388 #ifdef __WIN32__
389 // For some reason, under Win95, the text edit control has
390 // a lot of space before the first character
391 new_width += 3*cx;
392 #endif
393 // The height needs to be a bit bigger under Win95 if using native
394 // 3D effects.
395 valueHeight = (int) (valueHeight * 1.5) ;
396 MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
397 x_offset += new_width + cx;
398 }
399
400 MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
401 x_offset += (int)(min_len + cx);
402
403 int slider_length = (int)(w1 - x_offset - max_len - cx);
404
405 int slider_height = h1;
406 if (slider_height < 0 )
407 slider_height = 20;
408
409 // Slider must have a minimum/default length/height
410 if (slider_length < 100)
411 slider_length = 100;
412
413 MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_length, slider_height, TRUE);
414 x_offset += slider_length + cx;
415
416 MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
417 }
418 else
419 {
420 // No labels
421 if ( w1 < 0 )
422 w1 = 200;
423 if ( h1 < 0 )
424 h1 = 20;
425 MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
426 }
427 }
428 else
429 {
430 if ( m_windowStyle & wxSL_LABELS )
431 {
432 int min_len;
433 GetWindowText((HWND) m_staticMin, buf, 300);
434 GetTextExtent(buf, &min_len, &cyf,NULL,NULL,GetFont());
435
436 int max_len;
437 GetWindowText((HWND) m_staticMax, buf, 300);
438 GetTextExtent(buf, &max_len, &cyf,NULL,NULL, GetFont());
439
440 if (m_staticValue)
441 {
442 int new_width = (int)(wxMax(min_len, max_len));
443 int valueHeight = (int)cyf;
444 /*** Suggested change by George Tasker - remove this block...
445 #ifdef __WIN32__
446 // For some reason, under Win95, the text edit control has
447 // a lot of space before the first character
448 new_width += 3*cx;
449 #endif
450 ... and replace with following line: */
451 new_width += cx;
452
453 // The height needs to be a bit bigger under Win95 if using native
454 // 3D effects.
455 valueHeight = (int) (valueHeight * 1.5) ;
456
457 MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
458 y_offset += valueHeight;
459 }
460
461 MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
462 y_offset += cy;
463
464 int slider_length = (int)(h1 - y_offset - cy - cy);
465
466 int slider_width = w1;
467 if (slider_width < 0 )
468 slider_width = 20;
469
470 // Slider must have a minimum/default length
471 if (slider_length < 100)
472 slider_length = 100;
473
474 MoveWindow((HWND) GetHWND(), x_offset, y_offset, slider_width, slider_length, TRUE);
475 y_offset += slider_length;
476
477 MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
478 }
479 else
480 {
481 // No labels
482 if ( w1 < 0 )
483 w1 = 20;
484 if ( h1 < 0 )
485 h1 = 200;
486 MoveWindow((HWND) GetHWND(), x1, y1, w1, h1, TRUE);
487 }
488 }
489 }
490
491 void wxSlider95::SetRange(int minValue, int maxValue)
492 {
493 m_rangeMin = minValue;
494 m_rangeMax = maxValue;
495
496 ::SendMessage((HWND) GetHWND(), TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
497
498 char buf[40];
499 if ( m_staticMin )
500 {
501 sprintf(buf, "%d", m_rangeMin);
502 SetWindowText((HWND) m_staticMin, buf);
503 }
504
505 if ( m_staticMax )
506 {
507 sprintf(buf, "%d", m_rangeMax);
508 SetWindowText((HWND) m_staticMax, buf);
509 }
510 }
511
512 WXHBRUSH wxSlider95::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
513 WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
514 {
515 if ( nCtlColor == CTLCOLOR_SCROLLBAR )
516 return 0;
517
518 // Otherwise, it's a static
519 if (GetParent()->GetTransparentBackground())
520 SetBkMode((HDC) pDC, TRANSPARENT);
521 else
522 SetBkMode((HDC) pDC, OPAQUE);
523
524 ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
525 ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
526
527 wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
528 return (WXHBRUSH) backgroundBrush->GetResourceHandle();
529 }
530
531 // For trackbars only
532 void wxSlider95::SetTickFreq(int n, int pos)
533 {
534 m_tickFreq = n;
535 ::SendMessage( (HWND) GetHWND(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
536 }
537
538 void wxSlider95::SetPageSize(int pageSize)
539 {
540 ::SendMessage( (HWND) GetHWND(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
541 m_pageSize = pageSize;
542 }
543
544 int wxSlider95::GetPageSize(void) const
545 {
546 return m_pageSize;
547 }
548
549 void wxSlider95::ClearSel(void)
550 {
551 ::SendMessage( (HWND) GetHWND(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0 );
552 }
553
554 void wxSlider95::ClearTicks(void)
555 {
556 ::SendMessage( (HWND) GetHWND(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0 );
557 }
558
559 void wxSlider95::SetLineSize(int lineSize)
560 {
561 m_lineSize = lineSize;
562 ::SendMessage( (HWND) GetHWND(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize );
563 }
564
565 int wxSlider95::GetLineSize(void) const
566 {
567 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETLINESIZE, (WPARAM) 0, (LPARAM) 0 );
568 }
569
570 int wxSlider95::GetSelEnd(void) const
571 {
572 return (int) ::SendMessage( (HWND) GetHWND(), TBM_SETSELEND, (WPARAM) 0, (LPARAM) 0 );
573 }
574
575 int wxSlider95::GetSelStart(void) const
576 {
577 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETSELSTART, (WPARAM) 0, (LPARAM) 0 );
578 }
579
580 void wxSlider95::SetSelection(int minPos, int maxPos)
581 {
582 ::SendMessage( (HWND) GetHWND(), TBM_SETSEL, (WPARAM) TRUE, (LPARAM) MAKELONG( minPos, maxPos) );
583 }
584
585 void wxSlider95::SetThumbLength(int len)
586 {
587 ::SendMessage( (HWND) GetHWND(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0 );
588 }
589
590 int wxSlider95::GetThumbLength(void) const
591 {
592 return (int) ::SendMessage( (HWND) GetHWND(), TBM_GETTHUMBLENGTH, (WPARAM) 0, (LPARAM) 0 );
593 }
594
595 void wxSlider95::SetTick(int tickPos)
596 {
597 ::SendMessage( (HWND) GetHWND(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
598 }
599
600 bool wxSlider95::ContainsHWND(WXHWND hWnd) const
601 {
602 return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
603 }
604
605 #if WXWIN_COMPATIBILITY
606 // Backward compatibility
607 void wxSlider95::OnScroll(wxScrollEvent& event)
608 {
609 wxEventType oldEvent = event.GetEventType();
610 event.SetEventType( wxEVT_COMMAND_SLIDER_UPDATED );
611 if ( !GetEventHandler()->ProcessEvent(event) )
612 {
613 event.SetEventType( oldEvent );
614 if (!GetParent()->GetEventHandler()->ProcessEvent(event))
615 event.Skip();
616 }
617 }
618 #endif
619
620 void wxSlider95::Command (wxCommandEvent & event)
621 {
622 SetValue (event.GetInt());
623 ProcessCommand (event);
624 }
625
626 bool wxSlider95::Show(bool show)
627 {
628 wxWindow::Show(show);
629
630 int cshow;
631 if (show)
632 cshow = SW_SHOW;
633 else
634 cshow = SW_HIDE;
635
636 if(m_staticValue)
637 ShowWindow((HWND) m_staticValue, (BOOL)cshow);
638 if(m_staticMin)
639 ShowWindow((HWND) m_staticMin, (BOOL)cshow);
640 if(m_staticMax)
641 ShowWindow((HWND) m_staticMax, (BOOL)cshow);
642 return TRUE;
643 }
644
645 #endif
646 // __WIN95__
647