src/msw/slider95.cpp

   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 #if wxUSE_SLIDER
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/utils.h"
  27 #include "wx/brush.h"
  28 #endif
  29
  30 #ifdef __WIN95__
  31
  32 #include "wx/msw/slider95.h"
  33 #include "wx/msw/private.h"
  34
  35 #if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
  36     #include <commctrl.h>
  37 #endif
  38
  39 IMPLEMENT_DYNAMIC_CLASS(wxSlider95, wxControl)
  40
  41 // Slider
  42 wxSlider95::wxSlider95()
  43 {
  44   m_staticValue = 0;
  45   m_staticMin = 0;
  46   m_staticMax = 0;
  47   m_pageSize = 1;
  48   m_lineSize = 1;
  49   m_rangeMax = 0;
  50   m_rangeMin = 0;
  51   m_tickFreq = 0;
  52 }
  53
  54 bool wxSlider95::Create(wxWindow *parent, wxWindowID id,
  55            int value, int minValue, int maxValue,
  56            const wxPoint& pos,
  57            const wxSize& size, long style,
  58            const wxValidator& validator,
  59            const wxString& name)
  60 {
  61   SetName(name);
  62 #if wxUSE_VALIDATORS
  63   SetValidator(validator);
  64 #endif // wxUSE_VALIDATORS
  65
  66   if (parent) parent->AddChild(this);
  67   SetBackgroundColour(parent->GetBackgroundColour()) ;
  68   SetForegroundColour(parent->GetForegroundColour()) ;
  69
  70   m_staticValue = 0;
  71   m_staticMin = 0;
  72   m_staticMax = 0;
  73   m_pageSize = 1;
  74   m_lineSize = 1;
  75   m_windowStyle = style;
  76   m_tickFreq = 0;
  77
  78   if ( id == -1 )
  79       m_windowId = (int)NewControlId();
  80   else
  81     m_windowId = id;
  82
  83   int x = pos.x;
  84   int y = pos.y;
  85   int width = size.x;
  86   int height = size.y;
  87
  88   long msStyle=0 ;
  89   long wstyle=0 ;
  90
  91   if ( m_windowStyle & wxCLIP_SIBLINGS )
  92     msStyle |= WS_CLIPSIBLINGS;
  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, wxT("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       wxSprintf(wxBuffer, wxT("%d"), minValue);
 108       wstyle = STATIC_FLAGS;
 109       if ( m_windowStyle & wxCLIP_SIBLINGS )
 110         msStyle |= WS_CLIPSIBLINGS;
 111       m_staticMin = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
 112                              wstyle,
 113                              0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
 114                              wxGetInstance(), NULL);
 115   }
 116
 117   msStyle = 0;
 118
 119   if ( m_windowStyle & wxCLIP_SIBLINGS )
 120     msStyle |= WS_CLIPSIBLINGS;
 121
 122   if (m_windowStyle & wxSL_VERTICAL)
 123     msStyle = TBS_VERT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
 124   else
 125     msStyle = TBS_HORZ | WS_CHILD | WS_VISIBLE | WS_TABSTOP ;
 126
 127   if ( m_windowStyle & wxSL_AUTOTICKS )
 128     msStyle |= TBS_AUTOTICKS ;
 129
 130   if ( m_windowStyle & wxSL_LEFT )
 131     msStyle |= TBS_LEFT;
 132   else if ( m_windowStyle & wxSL_RIGHT )
 133       msStyle |= TBS_RIGHT;
 134   else if ( m_windowStyle & wxSL_TOP )
 135     msStyle |= TBS_TOP;
 136   else if ( m_windowStyle & wxSL_BOTTOM )
 137     msStyle |= TBS_BOTTOM;
 138   else if ( m_windowStyle & wxSL_BOTH )
 139     msStyle |= TBS_BOTH;
 140   else if ( ! (m_windowStyle & wxSL_AUTOTICKS) )
 141     msStyle |= TBS_NOTICKS;
 142
 143   if ( m_windowStyle & wxSL_SELRANGE )
 144     msStyle |= TBS_ENABLESELRANGE ;
 145
 146   HWND scroll_bar = CreateWindowEx(MakeExtendedStyle(m_windowStyle), TRACKBAR_CLASS, wxBuffer,
 147                          msStyle,
 148                          0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
 149                          wxGetInstance(), NULL);
 150
 151   m_rangeMax = maxValue;
 152   m_rangeMin = minValue;
 153
 154   m_pageSize = (int)((maxValue-minValue)/10);
 155
 156   ::SendMessage(scroll_bar, TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
 157   ::SendMessage(scroll_bar, TBM_SETPOS, TRUE, (LPARAM)value);
 158   ::SendMessage(scroll_bar, TBM_SETPAGESIZE, 0, (LPARAM)m_pageSize);
 159
 160   m_hWnd = (WXHWND)scroll_bar;
 161
 162   SubclassWin(GetHWND());
 163
 164   SetWindowText((HWND) m_hWnd, wxT(""));
 165
 166   SetFont(parent->GetFont());
 167
 168   if ( m_windowStyle & wxSL_LABELS )
 169   {
 170       // Finally, create max value static item
 171       wxSprintf(wxBuffer, wxT("%d"), maxValue);
 172       wstyle = STATIC_FLAGS;
 173       if ( m_windowStyle & wxCLIP_SIBLINGS )
 174         msStyle |= WS_CLIPSIBLINGS;
 175       m_staticMax = (WXHWND) CreateWindowEx(0, wxT("STATIC"), wxBuffer,
 176                              wstyle,
 177                              0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)NewControlId(),
 178                              wxGetInstance(), NULL);
 179
 180
 181       if (GetFont().Ok())
 182       {
 183         if (GetFont().GetResourceHandle())
 184         {
 185             if ( m_staticMin )
 186                   SendMessage((HWND)m_staticMin,WM_SETFONT,
 187                           (WPARAM)GetFont().GetResourceHandle(),0L);
 188             if ( m_staticMax )
 189                   SendMessage((HWND)m_staticMax,WM_SETFONT,
 190                       (WPARAM)GetFont().GetResourceHandle(),0L);
 191               if (m_staticValue)
 192                 SendMessage((HWND)m_staticValue,WM_SETFONT,
 193                         (WPARAM)GetFont().GetResourceHandle(),0L);
 194         }
 195       }
 196   }
 197
 198   SetSize(x, y, width, height);
 199   SetValue(value);
 200
 201   return TRUE;
 202 }
 203
 204 bool wxSlider95::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
 205                              WXWORD pos, WXHWND control)
 206 {
 207     wxEventType scrollEvent;
 208     switch ( wParam )
 209     {
 210         case SB_TOP:
 211             scrollEvent = wxEVT_SCROLL_TOP;
 212             break;
 213
 214         case SB_BOTTOM:
 215             scrollEvent = wxEVT_SCROLL_BOTTOM;
 216             break;
 217
 218         case SB_LINEUP:
 219             scrollEvent = wxEVT_SCROLL_LINEUP;
 220             break;
 221
 222         case SB_LINEDOWN:
 223             scrollEvent = wxEVT_SCROLL_LINEDOWN;
 224             break;
 225
 226         case SB_PAGEUP:
 227             scrollEvent = wxEVT_SCROLL_PAGEUP;
 228             break;
 229
 230         case SB_PAGEDOWN:
 231             scrollEvent = wxEVT_SCROLL_PAGEDOWN;
 232             break;
 233
 234         case SB_THUMBTRACK:
 235         case SB_THUMBPOSITION:
 236             scrollEvent = wxEVT_SCROLL_THUMBTRACK;
 237             break;
 238
 239         default:
 240             // unknown scroll event?
 241             return FALSE;
 242     }
 243
 244     int newPos = (int)::SendMessage((HWND) control, TBM_GETPOS, 0, 0);
 245     if ( (newPos < GetMin()) || (newPos > GetMax()) )
 246     {
 247         // out of range - but we did process it
 248         return TRUE;
 249     }
 250
 251     SetValue(newPos);
 252
 253     wxScrollEvent event(scrollEvent, m_windowId);
 254     event.SetPosition(newPos);
 255     event.SetEventObject( this );
 256     GetEventHandler()->ProcessEvent(event);
 257
 258     wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, GetId() );
 259     cevent.SetInt( newPos );
 260     cevent.SetEventObject( this );
 261
 262     return GetEventHandler()->ProcessEvent( cevent );
 263 }
 264
 265 wxSlider95::~wxSlider95()
 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() const
 276 {
 277   return ::SendMessage(GetHwnd(), TBM_GETPOS, 0, 0);
 278 }
 279
 280 void wxSlider95::SetValue(int value)
 281 {
 282   ::SendMessage(GetHwnd(), TBM_SETPOS, (WPARAM)TRUE, (LPARAM)value);
 283   if (m_staticValue)
 284   {
 285     wxSprintf(wxBuffer, wxT("%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 // TODO one day, make sense of all this horros and replace it with a readable
 345 //      DoGetBestSize()
 346 void wxSlider95::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 347 {
 348   int x1 = x;
 349   int y1 = y;
 350   int w1 = width;
 351   int h1 = height;
 352
 353   int currentX, currentY;
 354   GetPosition(&currentX, &currentY);
 355   if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 356     x1 = currentX;
 357   if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 358     y1 = currentY;
 359
 360   AdjustForParentClientOrigin(x1, y1, sizeFlags);
 361
 362   wxChar buf[300];
 363
 364   int x_offset = x;
 365   int y_offset = y;
 366
 367   int cx;     // slider,min,max sizes
 368   int cy;
 369   int cyf;
 370
 371   wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont());
 372
 373   if ((m_windowStyle & wxSL_VERTICAL) != wxSL_VERTICAL)
 374   {
 375     if ( m_windowStyle & wxSL_LABELS )
 376     {
 377     int min_len = 0;
 378
 379     GetWindowText((HWND) m_staticMin, buf, 300);
 380     GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
 381
 382     int max_len = 0;
 383
 384     GetWindowText((HWND) m_staticMax, buf, 300);
 385     GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
 386     if (m_staticValue)
 387     {
 388       int new_width = (int)(wxMax(min_len, max_len));
 389       int valueHeight = (int)cyf;
 390 #ifdef __WIN32__
 391       // For some reason, under Win95, the text edit control has
 392       // a lot of space before the first character
 393       new_width += 3*cx;
 394 #endif
 395       // The height needs to be a bit bigger under Win95 if using native
 396       // 3D effects.
 397       valueHeight = (int) (valueHeight * 1.5) ;
 398       MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
 399       x_offset += new_width + cx;
 400     }
 401
 402     MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
 403     x_offset += (int)(min_len + cx);
 404
 405     int slider_length = (int)(w1 - x_offset - max_len - cx);
 406
 407     int slider_height = h1;
 408     if (slider_height < 0 )
 409         slider_height = 20;
 410
 411     // Slider must have a minimum/default length/height
 412     if (slider_length < 100)
 413       slider_length = 100;
 414
 415     MoveWindow(GetHwnd(), x_offset, y_offset, slider_length, slider_height, TRUE);
 416     x_offset += slider_length + cx;
 417
 418     MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
 419     }
 420     else
 421     {
 422         // No labels
 423         // If we're prepared to use the existing size, then...
 424         if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
 425         {
 426             GetSize(&w1, &h1);
 427         }
 428         if ( w1 < 0 )
 429             w1 = 200;
 430         if ( h1 < 0 )
 431             h1 = 20;
 432         MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
 433     }
 434   }
 435   else
 436   {
 437     if ( m_windowStyle & wxSL_LABELS )
 438     {
 439     int min_len;
 440     GetWindowText((HWND) m_staticMin, buf, 300);
 441     GetTextExtent(buf, &min_len, &cyf,NULL,NULL, & this->GetFont());
 442
 443     int max_len;
 444     GetWindowText((HWND) m_staticMax, buf, 300);
 445     GetTextExtent(buf, &max_len, &cyf,NULL,NULL, & this->GetFont());
 446
 447     if (m_staticValue)
 448     {
 449       int new_width = (int)(wxMax(min_len, max_len));
 450       int valueHeight = (int)cyf;
 451 /*** Suggested change by George Tasker - remove this block...
 452 #ifdef __WIN32__
 453       // For some reason, under Win95, the text edit control has
 454       // a lot of space before the first character
 455       new_width += 3*cx;
 456 #endif
 457  ... and replace with following line: */
 458       new_width += cx;
 459
 460       // The height needs to be a bit bigger under Win95 if using native
 461       // 3D effects.
 462       valueHeight = (int) (valueHeight * 1.5) ;
 463
 464       MoveWindow((HWND) m_staticValue, x_offset, y_offset, new_width, valueHeight, TRUE);
 465       y_offset += valueHeight;
 466     }
 467
 468     MoveWindow((HWND) m_staticMin, x_offset, y_offset, (int)min_len, cy, TRUE);
 469     y_offset += cy;
 470
 471     int slider_length = (int)(h1 - y_offset - cy - cy);
 472
 473     int slider_width = w1;
 474     if (slider_width < 0 )
 475         slider_width = 20;
 476
 477     // Slider must have a minimum/default length
 478     if (slider_length < 100)
 479       slider_length = 100;
 480
 481     MoveWindow(GetHwnd(), x_offset, y_offset, slider_width, slider_length, TRUE);
 482     y_offset += slider_length;
 483
 484     MoveWindow((HWND) m_staticMax, x_offset, y_offset, (int)max_len, cy, TRUE);
 485     }
 486     else
 487     {
 488         // No labels
 489         // If we're prepared to use the existing size, then...
 490         if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
 491         {
 492             GetSize(&w1, &h1);
 493         }
 494         if ( w1 < 0 )
 495             w1 = 20;
 496         if ( h1 < 0 )
 497             h1 = 200;
 498         MoveWindow(GetHwnd(), x1, y1, w1, h1, TRUE);
 499     }
 500   }
 501 }
 502
 503 void wxSlider95::SetRange(int minValue, int maxValue)
 504 {
 505   m_rangeMin = minValue;
 506   m_rangeMax = maxValue;
 507
 508   ::SendMessage(GetHwnd(), TBM_SETRANGE, TRUE, MAKELONG(minValue, maxValue));
 509
 510   wxChar buf[40];
 511   if ( m_staticMin )
 512   {
 513       wxSprintf(buf, wxT("%d"), m_rangeMin);
 514       SetWindowText((HWND) m_staticMin, buf);
 515   }
 516
 517   if ( m_staticMax )
 518   {
 519     wxSprintf(buf, wxT("%d"), m_rangeMax);
 520     SetWindowText((HWND) m_staticMax, buf);
 521   }
 522 }
 523
 524 WXHBRUSH wxSlider95::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 525             WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 526 {
 527   if ( nCtlColor == CTLCOLOR_SCROLLBAR )
 528     return 0;
 529
 530   // Otherwise, it's a static
 531   return wxControl::OnCtlColor(pDC, pWnd, nCtlColor, message, wParam, lParam);
 532 }
 533
 534 // For trackbars only
 535 void wxSlider95::SetTickFreq(int n, int pos)
 536 {
 537   m_tickFreq = n;
 538   ::SendMessage( GetHwnd(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
 539 }
 540
 541 void wxSlider95::SetPageSize(int pageSize)
 542 {
 543   ::SendMessage( GetHwnd(), TBM_SETPAGESIZE, (WPARAM) 0, (LPARAM) pageSize );
 544   m_pageSize = pageSize;
 545 }
 546
 547 int wxSlider95::GetPageSize() const
 548 {
 549   return m_pageSize;
 550 }
 551
 552 void wxSlider95::ClearSel()
 553 {
 554   ::SendMessage( GetHwnd(), TBM_CLEARSEL, (WPARAM) TRUE, (LPARAM) 0 );
 555 }
 556
 557 void wxSlider95::ClearTicks()
 558 {
 559   ::SendMessage( GetHwnd(), TBM_CLEARTICS, (WPARAM) TRUE, (LPARAM) 0 );
 560 }
 561
 562 void wxSlider95::SetLineSize(int lineSize)
 563 {
 564   m_lineSize = lineSize;
 565   ::SendMessage( GetHwnd(), TBM_SETLINESIZE, (WPARAM) 0, (LPARAM) lineSize );
 566 }
 567
 568 int wxSlider95::GetLineSize() const
 569 {
 570   return (int) ::SendMessage( GetHwnd(), TBM_GETLINESIZE, (WPARAM) 0, (LPARAM) 0 );
 571 }
 572
 573 int wxSlider95::GetSelEnd() const
 574 {
 575   return (int) ::SendMessage( GetHwnd(), TBM_SETSELEND, (WPARAM) 0, (LPARAM) 0 );
 576 }
 577
 578 int wxSlider95::GetSelStart() const
 579 {
 580   return (int) ::SendMessage( GetHwnd(), TBM_GETSELSTART, (WPARAM) 0, (LPARAM) 0 );
 581 }
 582
 583 void wxSlider95::SetSelection(int minPos, int maxPos)
 584 {
 585   ::SendMessage( GetHwnd(), TBM_SETSEL, (WPARAM) TRUE, (LPARAM) MAKELONG( minPos, maxPos) );
 586 }
 587
 588 void wxSlider95::SetThumbLength(int len)
 589 {
 590   ::SendMessage( GetHwnd(), TBM_SETTHUMBLENGTH, (WPARAM) len, (LPARAM) 0 );
 591 }
 592
 593 int wxSlider95::GetThumbLength() const
 594 {
 595   return (int) ::SendMessage( GetHwnd(), TBM_GETTHUMBLENGTH, (WPARAM) 0, (LPARAM) 0 );
 596 }
 597
 598 void wxSlider95::SetTick(int tickPos)
 599 {
 600   ::SendMessage( GetHwnd(), TBM_SETTIC, (WPARAM) 0, (LPARAM) tickPos );
 601 }
 602
 603 bool wxSlider95::ContainsHWND(WXHWND hWnd) const
 604 {
 605     return ( hWnd == GetStaticMin() || hWnd == GetStaticMax() || hWnd == GetEditValue() );
 606 }
 607
 608 void wxSlider95::Command (wxCommandEvent & event)
 609 {
 610   SetValue (event.GetInt());
 611   ProcessCommand (event);
 612 }
 613
 614 bool wxSlider95::Show(bool show)
 615 {
 616     wxWindow::Show(show);
 617
 618     int cshow;
 619     if (show)
 620         cshow = SW_SHOW;
 621     else
 622         cshow = SW_HIDE;
 623
 624     if(m_staticValue)
 625         ShowWindow((HWND) m_staticValue, (BOOL)cshow);
 626     if(m_staticMin)
 627         ShowWindow((HWND) m_staticMin, (BOOL)cshow);
 628     if(m_staticMax)
 629         ShowWindow((HWND) m_staticMax, (BOOL)cshow);
 630     return TRUE;
 631 }
 632
 633 #endif
 634   // __WIN95__
 635
 636 #endif // wxUSE_SLIDER