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 #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   *x = point.x;
 332   *y = point.y;
 333 }
 334
 335 void wxSlider95::SetSize(int x, int y, int width, int height, 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   int 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     int min_len = 0;
 365
 366     GetWindowText((HWND) m_staticMin, buf, 300);
 367     GetTextExtent(buf, &min_len, &cyf,NULL,NULL, GetFont());
 368
 369     int max_len = 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     int min_len;
 422     GetWindowText((HWND) m_staticMin, buf, 300);
 423     GetTextExtent(buf, &min_len, &cyf,NULL,NULL,GetFont());
 424
 425     int 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(int minValue, 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(WXHDC pDC, WXHWND pWnd, 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(int n, int pos)
 522 {
 523   m_tickFreq = n;
 524   ::SendMessage( (HWND) GetHWND(), TBM_SETTICFREQ, (WPARAM) n, (LPARAM) pos );
 525 }
 526
 527 void wxSlider95::SetPageSize(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(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(int minPos, int maxPos)
 570 {
 571   ::SendMessage( (HWND) GetHWND(), TBM_SETSEL, (WPARAM) TRUE, (LPARAM) MAKELONG( minPos, maxPos) );
 572 }
 573
 574 void wxSlider95::SetThumbLength(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(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(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