src/generic/tbarsmpl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/tbarsmpl.cpp
   3 // Purpose:     wxToolBarSimple
   4 // Author:      Julian Smart
   5 // Modified by: VZ on 14.12.99 during wxToolBarSimple reorganization
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "tbarsmpl.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_TOOLBAR_SIMPLE
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/settings.h"
  35     #include "wx/window.h"
  36     #include "wx/dcclient.h"
  37     #include "wx/dcmemory.h"
  38 #endif
  39
  40 #include "wx/tbarsmpl.h"
  41
  42 // ----------------------------------------------------------------------------
  43 // private classes
  44 // ----------------------------------------------------------------------------
  45
  46 class WXDLLEXPORT wxToolBarToolSimple : public wxToolBarToolBase
  47 {
  48 public:
  49     wxToolBarToolSimple(wxToolBarSimple *tbar,
  50                         int id,
  51                         const wxBitmap& bitmap1,
  52                         const wxBitmap& bitmap2,
  53                         bool toggle,
  54                         wxObject *clientData,
  55                         const wxString& shortHelpString,
  56                         const wxString& longHelpString)
  57         : wxToolBarToolBase(tbar, id, bitmap1, bitmap2, toggle,
  58                             clientData, shortHelpString, longHelpString)
  59     {
  60     }
  61
  62     wxToolBarToolSimple(wxToolBarSimple *tbar, wxControl *control)
  63         : wxToolBarToolBase(tbar, control)
  64     {
  65     }
  66
  67     void SetSize(const wxSize& size)
  68     {
  69         m_width = size.x;
  70         m_height = size.y;
  71     }
  72
  73     long GetWidth() const { return m_width; }
  74     long GetHeight() const { return m_height; }
  75
  76     wxCoord               m_x;
  77     wxCoord               m_y;
  78     wxCoord               m_width;
  79     wxCoord               m_height;
  80 };
  81
  82 // ----------------------------------------------------------------------------
  83 // wxWin macros
  84 // ----------------------------------------------------------------------------
  85
  86 IMPLEMENT_DYNAMIC_CLASS(wxToolBarSimple, wxControl)
  87
  88 BEGIN_EVENT_TABLE(wxToolBarSimple, wxToolBarBase)
  89         EVT_SIZE(wxToolBarSimple::OnSize)
  90     EVT_SCROLL(wxToolBarSimple::OnScroll)
  91         EVT_PAINT(wxToolBarSimple::OnPaint)
  92         EVT_KILL_FOCUS(wxToolBarSimple::OnKillFocus)
  93         EVT_MOUSE_EVENTS(wxToolBarSimple::OnMouseEvent)
  94 END_EVENT_TABLE()
  95
  96 // ============================================================================
  97 // implementation
  98 // ============================================================================
  99
 100 // ----------------------------------------------------------------------------
 101 // tool bar tools creation
 102 // ----------------------------------------------------------------------------
 103
 104 wxToolBarToolBase *wxToolBarSimple::CreateTool(int id,
 105                                                const wxBitmap& bitmap1,
 106                                                const wxBitmap& bitmap2,
 107                                                bool toggle,
 108                                                wxObject *clientData,
 109                                                const wxString& shortHelpString,
 110                                                const wxString& longHelpString)
 111 {
 112     return new wxToolBarToolSimple(this, id, bitmap1, bitmap2, toggle,
 113                                    clientData, shortHelpString, longHelpString);
 114 }
 115
 116 wxToolBarToolBase *wxToolBarSimple::CreateTool(wxControl *control)
 117 {
 118     return new wxToolBarToolSimple(this, control);
 119 }
 120
 121 // ----------------------------------------------------------------------------
 122 // wxToolBarSimple creation
 123 // ----------------------------------------------------------------------------
 124
 125 void wxToolBarSimple::Init()
 126 {
 127     m_currentRowsOrColumns = 0;
 128
 129     m_lastX =
 130     m_lastY = 0;
 131
 132     m_maxWidth =
 133     m_maxHeight = 0;
 134
 135     m_pressedTool =
 136     m_currentTool = -1;
 137
 138     m_xPos =
 139     m_yPos = -1;
 140
 141     m_toolPacking = 1;
 142     m_toolSeparation = 5;
 143
 144     m_defaultWidth = 16;
 145     m_defaultHeight = 15;
 146 }
 147
 148 wxToolBarToolBase *wxToolBarSimple::AddTool(int id,
 149                                             const wxBitmap& bitmap,
 150                                             const wxBitmap& pushedBitmap,
 151                                             bool toggle,
 152                                             wxCoord xPos,
 153                                             wxCoord yPos,
 154                                             wxObject *clientData,
 155                                             const wxString& helpString1,
 156                                             const wxString& helpString2)
 157 {
 158     // rememeber the position for DoInsertTool()
 159     m_xPos = xPos;
 160     m_yPos = yPos;
 161
 162     return wxToolBarBase::AddTool(id, bitmap, pushedBitmap, toggle,
 163                                   xPos, yPos, clientData,
 164                                   helpString1, helpString2);
 165 }
 166
 167 bool wxToolBarSimple::DoInsertTool(size_t pos, wxToolBarToolBase *toolBase)
 168 {
 169     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
 170
 171     wxCHECK_MSG( !tool->IsControl(), FALSE,
 172                  _T("generic wxToolBarSimple doesn't support controls") );
 173
 174     tool->m_x = m_xPos;
 175     if ( tool->m_x == -1 )
 176         tool->m_x = m_xMargin;
 177
 178     tool->m_y = m_yPos;
 179     if ( tool->m_y == -1 )
 180         tool->m_y = m_yMargin;
 181
 182     tool->SetSize(GetToolSize());
 183
 184     if ( tool->IsButton() )
 185     {
 186         // Calculate reasonable max size in case Layout() not called
 187         if ((tool->m_x + tool->GetBitmap1().GetWidth() + m_xMargin) > m_maxWidth)
 188             m_maxWidth = (tool->m_x + tool->GetWidth() + m_xMargin);
 189
 190         if ((tool->m_y + tool->GetBitmap1().GetHeight() + m_yMargin) > m_maxHeight)
 191             m_maxHeight = (tool->m_y + tool->GetHeight() + m_yMargin);
 192     }
 193
 194     return TRUE;
 195 }
 196
 197 bool wxToolBarSimple::DoDeleteTool(size_t WXUNUSED(pos),
 198                                    wxToolBarToolBase *tool)
 199 {
 200     // VZ: didn't test whether it works, but why not...
 201     tool->Detach();
 202
 203     Refresh();
 204
 205     return TRUE;
 206 }
 207
 208 bool wxToolBarSimple::Create(wxWindow *parent,
 209                              wxWindowID id,
 210                              const wxPoint& pos,
 211                              const wxSize& size,
 212                              long style,
 213                              const wxString& name)
 214 {
 215     if ( !wxWindow::Create(parent, id, pos, size, style, name) )
 216         return FALSE;
 217
 218     // Set it to grey (or other 3D face colour)
 219     wxSystemSettings settings;
 220     SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_3DFACE));
 221
 222     if ( GetWindowStyleFlag() & wxTB_VERTICAL )
 223     {
 224         m_lastX = 7;
 225         m_lastY = 3;
 226
 227         m_maxRows = 32000;      // a lot
 228         m_maxCols = 1;
 229     }
 230     else
 231     {
 232         m_lastX = 3;
 233         m_lastY = 7;
 234
 235         m_maxRows = 1;
 236         m_maxCols = 32000;      // a lot
 237     }
 238
 239     SetCursor(*wxSTANDARD_CURSOR);
 240
 241     return TRUE;
 242 }
 243
 244 wxToolBarSimple::~wxToolBarSimple()
 245 {
 246 }
 247
 248 bool wxToolBarSimple::Realize()
 249 {
 250     m_currentRowsOrColumns = 0;
 251     m_lastX = m_xMargin;
 252     m_lastY = m_yMargin;
 253     m_maxWidth = 0;
 254     m_maxHeight = 0;
 255
 256     int maxToolWidth = 0;
 257     int maxToolHeight = 0;
 258
 259     // Find the maximum tool width and height
 260     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 261     while ( node )
 262     {
 263         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 264         if ( tool->GetWidth() > maxToolWidth )
 265             maxToolWidth = tool->GetWidth();
 266         if (tool->GetHeight() > maxToolHeight)
 267             maxToolHeight = tool->GetHeight();
 268
 269         node = node->GetNext();
 270     }
 271
 272     int separatorSize = m_toolSeparation;
 273
 274     node = m_tools.GetFirst();
 275     while ( node )
 276     {
 277         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 278         if ( tool->IsSeparator() )
 279         {
 280             if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 281             {
 282                 if (m_currentRowsOrColumns >= m_maxCols)
 283                     m_lastY += separatorSize;
 284                 else
 285                     m_lastX += separatorSize;
 286             }
 287             else
 288             {
 289                 if (m_currentRowsOrColumns >= m_maxRows)
 290                     m_lastX += separatorSize;
 291                 else
 292                     m_lastY += separatorSize;
 293             }
 294         }
 295         else if ( tool->IsButton() )
 296         {
 297             if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 298             {
 299                 if (m_currentRowsOrColumns >= m_maxCols)
 300                 {
 301                     m_currentRowsOrColumns = 0;
 302                     m_lastX = m_xMargin;
 303                     m_lastY += maxToolHeight + m_toolPacking;
 304                 }
 305                 tool->m_x = (long) (m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
 306                 tool->m_y = (long) (m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
 307
 308                 m_lastX += maxToolWidth + m_toolPacking;
 309             }
 310             else
 311             {
 312                 if (m_currentRowsOrColumns >= m_maxRows)
 313                 {
 314                     m_currentRowsOrColumns = 0;
 315                     m_lastX += (maxToolWidth + m_toolPacking);
 316                     m_lastY = m_yMargin;
 317                 }
 318                 tool->m_x = (long) (m_lastX + (maxToolWidth - tool->GetWidth())/2.0);
 319                 tool->m_y = (long) (m_lastY + (maxToolHeight - tool->GetHeight())/2.0);
 320
 321                 m_lastY += maxToolHeight + m_toolPacking;
 322             }
 323             m_currentRowsOrColumns ++;
 324         }
 325         else
 326         {
 327             // TODO: support the controls
 328         }
 329
 330         if (m_lastX > m_maxWidth)
 331             m_maxWidth = m_lastX;
 332         if (m_lastY > m_maxHeight)
 333             m_maxHeight = m_lastY;
 334
 335         node = node->GetNext();
 336     }
 337
 338     if ( GetWindowStyleFlag() & wxTB_HORIZONTAL )
 339         m_maxWidth += maxToolWidth;
 340     else
 341         m_maxHeight += maxToolHeight;
 342
 343     m_maxWidth += m_xMargin;
 344     m_maxHeight += m_yMargin;
 345
 346     return TRUE;
 347 }
 348
 349 // ----------------------------------------------------------------------------
 350 // event handlers
 351 // ----------------------------------------------------------------------------
 352
 353 void wxToolBarSimple::OnPaint (wxPaintEvent& WXUNUSED(event))
 354 {
 355     wxPaintDC dc(this);
 356     PrepareDC(dc);
 357
 358     static int count = 0;
 359     // Prevent reentry of OnPaint which would cause wxMemoryDC errors.
 360     if ( count > 0 )
 361         return;
 362     count++;
 363
 364     for ( wxToolBarToolsList::Node *node = m_tools.GetFirst();
 365           node;
 366           node = node->GetNext() )
 367     {
 368         wxToolBarToolBase *tool = node->GetData();
 369         if ( tool->IsButton() )
 370             DrawTool(dc, tool);
 371     }
 372
 373     count--;
 374 }
 375
 376 void wxToolBarSimple::OnSize (wxSizeEvent& WXUNUSED(event))
 377 {
 378 #if wxUSE_CONSTRAINTS
 379     if (GetAutoLayout())
 380         Layout();
 381 #endif
 382
 383     AdjustScrollbars();
 384 }
 385
 386 void wxToolBarSimple::OnKillFocus(wxFocusEvent& WXUNUSED(event))
 387 {
 388     OnMouseEnter(m_pressedTool = m_currentTool = -1);
 389 }
 390
 391 void wxToolBarSimple::OnMouseEvent(wxMouseEvent & event)
 392 {
 393     wxCoord x, y;
 394     event.GetPosition(&x, &y);
 395     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)FindToolForPosition(x, y);
 396
 397     if (event.LeftDown())
 398     {
 399         CaptureMouse();
 400     }
 401     if (event.LeftUp())
 402     {
 403         ReleaseMouse();
 404     }
 405
 406     if (!tool)
 407     {
 408         if (m_currentTool > -1)
 409         {
 410             if (event.LeftIsDown())
 411                 SpringUpButton(m_currentTool);
 412             m_currentTool = -1;
 413             OnMouseEnter(-1);
 414         }
 415         return;
 416     }
 417
 418     if (!event.IsButton())
 419     {
 420         if ( tool->GetId() != m_currentTool )
 421         {
 422             // If the left button is kept down and moved over buttons,
 423             // press those buttons.
 424             if ( event.LeftIsDown() && tool->IsEnabled() )
 425             {
 426                 SpringUpButton(m_currentTool);
 427
 428                 if ( tool->CanBeToggled() )
 429                 {
 430                     tool->Toggle();
 431                 }
 432
 433                 DrawTool(tool);
 434             }
 435
 436             m_currentTool = tool->GetId();
 437             OnMouseEnter(m_currentTool);
 438         }
 439         return;
 440     }
 441
 442     // Left button pressed.
 443     if ( event.LeftDown() && tool->IsEnabled() )
 444     {
 445         if ( tool->CanBeToggled() )
 446         {
 447             tool->Toggle();
 448         }
 449
 450         DrawTool(tool);
 451     }
 452     else if (event.RightDown())
 453     {
 454         OnRightClick(tool->GetId(), x, y);
 455     }
 456
 457     // Left Button Released.  Only this action confirms selection.
 458     // If the button is enabled and it is not a toggle tool and it is
 459     // in the pressed state, then raise the button and call OnLeftClick.
 460     //
 461     if ( event.LeftUp() && tool->IsEnabled() )
 462     {
 463         // Pass the OnLeftClick event to tool
 464         if ( !OnLeftClick(tool->GetId(), tool->IsToggled()) &&
 465                           tool->CanBeToggled() )
 466         {
 467             // If it was a toggle, and OnLeftClick says No Toggle allowed,
 468             // then change it back
 469             tool->Toggle();
 470         }
 471
 472         DrawTool(tool);
 473     }
 474 }
 475
 476 // ----------------------------------------------------------------------------
 477 // drawing
 478 // ----------------------------------------------------------------------------
 479
 480 void wxToolBarSimple::DrawTool(wxToolBarToolBase *tool)
 481 {
 482     wxClientDC dc(this);
 483     DrawTool(dc, tool);
 484 }
 485
 486 void wxToolBarSimple::DrawTool(wxDC& dc, wxToolBarToolBase *toolBase)
 487 {
 488     wxToolBarToolSimple *tool = (wxToolBarToolSimple *)toolBase;
 489
 490     wxMemoryDC memDC;
 491     PrepareDC(dc);
 492
 493     wxPen dark_grey_pen(wxColour( 85,85,85 ), 1, wxSOLID);
 494     wxPen white_pen("WHITE", 1, wxSOLID);
 495     wxPen black_pen("BLACK", 1, wxSOLID);
 496
 497     wxBitmap bitmap = tool->GetBitmap();
 498
 499     if ( bitmap.Ok() )
 500     {
 501 #ifndef __WXGTK__
 502         if (bitmap.GetPalette())
 503             memDC.SetPalette(*bitmap.GetPalette());
 504 #endif
 505
 506         int ax = (int)tool->m_x,
 507         ay = (int)tool->m_y,
 508         bx = (int)(tool->m_x+tool->GetWidth()),
 509         by = (int)(tool->m_y+tool->GetHeight());
 510
 511         memDC.SelectObject(bitmap);
 512         if (m_windowStyle & wxTB_3DBUTTONS)
 513         {
 514             dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
 515             dc.Blit((ax+1), (ay+1), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
 516             wxPen * old_pen = & dc.GetPen();
 517             dc.SetPen( white_pen );
 518             dc.DrawLine(ax,(by-1),ax,ay);
 519             dc.DrawLine(ax,ay,(bx-1),ay);
 520             dc.SetPen( dark_grey_pen );
 521             dc.DrawLine((bx-1),(ay+1),(bx-1),(by-1));
 522             dc.DrawLine((bx-1),(by-1),(ax+1),(by-1));
 523             dc.SetPen( black_pen );
 524             dc.DrawLine(bx,ay,bx,by);
 525             dc.DrawLine(bx,by,ax,by);
 526             dc.SetPen( *old_pen );
 527             dc.DestroyClippingRegion();
 528             // Select bitmap out of the DC
 529         }
 530         else
 531         {
 532             dc.Blit(tool->m_x, tool->m_y,
 533                     bitmap.GetWidth(), bitmap.GetHeight(),
 534                     &memDC, 0, 0);
 535         }
 536         memDC.SelectObject(wxNullBitmap);
 537 #ifndef __WXGTK__
 538         memDC.SetPalette(wxNullPalette);
 539 #endif
 540     }
 541     // No second bitmap, so draw a thick line around bitmap, or invert if mono
 542     else if ( tool->IsToggled() )
 543     {
 544         bool drawBorder = FALSE;
 545 #ifdef __X__ // X doesn't invert properly on colour
 546         drawBorder = wxColourDisplay();
 547 #else       // Inversion works fine under Windows
 548         drawBorder = FALSE;
 549 #endif
 550
 551         if (!drawBorder)
 552         {
 553             memDC.SelectObject(tool->GetBitmap1());
 554             dc.Blit(tool->m_x, tool->m_y, tool->GetWidth(), tool->GetHeight(),
 555                     &memDC, 0, 0, wxSRC_INVERT);
 556             memDC.SelectObject(wxNullBitmap);
 557         }
 558         else
 559         {
 560             bitmap = tool->GetBitmap1();
 561
 562             if (m_windowStyle & wxTB_3DBUTTONS)
 563             {
 564                 int ax = (int)tool->m_x,
 565                 ay = (int)tool->m_y,
 566                 bx = (int)(tool->m_x+tool->GetWidth()),
 567                 by = (int)(tool->m_y+tool->GetHeight());
 568
 569                 memDC.SelectObject(bitmap);
 570                 dc.SetClippingRegion(ax, ay, (bx-ax+1), (by-ay+1));
 571                 dc.Blit((ax+2), (ay+2), (bx-ax-2), (by-ay-2), &memDC, 0, 0);
 572                 wxPen * old_pen = & dc.GetPen();
 573                 dc.SetPen( black_pen );
 574                 dc.DrawLine(ax,(by-1),ax,ay);
 575                 dc.DrawLine(ax,ay,(bx-1),ay);
 576                 dc.SetPen( dark_grey_pen );
 577                 dc.DrawLine((ax+1),(by-2),(ax+1),(ay+1));
 578                 dc.DrawLine((ax+1),(ay+1),(bx-2),(ay+1));
 579                 dc.SetPen( white_pen );
 580                 dc.DrawLine(bx,ay,bx,by);
 581                 dc.DrawLine(bx,by,ax,by);
 582                 dc.SetPen( *old_pen );
 583                 dc.DestroyClippingRegion();
 584                 memDC.SelectObject(wxNullBitmap);
 585             }
 586             else
 587             {
 588                 long x = tool->m_x;
 589                 long y = tool->m_y;
 590                 long w = bitmap.GetWidth();
 591                 long h = bitmap.GetHeight();
 592                 wxPen thick_black_pen("BLACK", 3, wxSOLID);
 593
 594                 memDC.SelectObject(bitmap);
 595                 dc.SetClippingRegion(tool->m_x, tool->m_y, w, h);
 596                 dc.Blit(tool->m_x, tool->m_y, w, h,
 597                         &memDC, 0, 0);
 598                 dc.SetPen(thick_black_pen);
 599                 dc.SetBrush(*wxTRANSPARENT_BRUSH);
 600                 dc.DrawRectangle(x, y, w-1, h-1);
 601                 dc.DestroyClippingRegion();
 602                 memDC.SelectObject(wxNullBitmap);
 603             }
 604         }
 605     }
 606 }
 607
 608 // ----------------------------------------------------------------------------
 609 // toolbar geometry
 610 // ----------------------------------------------------------------------------
 611
 612 void wxToolBarSimple::SetRows(int nRows)
 613 {
 614     wxCHECK_RET( nRows != 0, _T("max number of rows must be > 0") );
 615
 616     m_maxCols = (GetToolsCount() + nRows - 1) / nRows;
 617
 618     AdjustScrollbars();
 619     Refresh();
 620 }
 621
 622 wxToolBarToolBase *wxToolBarSimple::FindToolForPosition(wxCoord x,
 623                                                         wxCoord y) const
 624 {
 625     wxToolBarToolsList::Node *node = m_tools.GetFirst();
 626     while (node)
 627     {
 628         wxToolBarToolSimple *tool = (wxToolBarToolSimple *)node->GetData();
 629         if ((x >= tool->m_x) && (y >= tool->m_y) &&
 630             (x <= (tool->m_x + tool->GetWidth())) &&
 631             (y <= (tool->m_y + tool->GetHeight())))
 632         {
 633             return tool;
 634         }
 635
 636         node = node->GetNext();
 637     }
 638
 639     return (wxToolBarToolBase *)NULL;
 640 }
 641
 642 // ----------------------------------------------------------------------------
 643 // tool state change handlers
 644 // ----------------------------------------------------------------------------
 645
 646 void wxToolBarSimple::DoEnableTool(wxToolBarToolBase *tool,
 647                                    bool WXUNUSED(enable))
 648 {
 649     DrawTool(tool);
 650 }
 651
 652 void wxToolBarSimple::DoToggleTool(wxToolBarToolBase *tool,
 653                                    bool WXUNUSED(toggle))
 654 {
 655     DrawTool(tool);
 656 }
 657
 658 void wxToolBarSimple::DoSetToggle(wxToolBarToolBase * WXUNUSED(tool),
 659                                   bool WXUNUSED(toggle))
 660 {
 661     // nothing to do
 662 }
 663
 664 // Okay, so we've left the tool we're in ... we must check if the tool we're
 665 // leaving was a 'sprung push button' and if so, spring it back to the up
 666 // state.
 667 void wxToolBarSimple::SpringUpButton(int id)
 668 {
 669     wxToolBarToolBase *tool = FindById(id);
 670
 671     if ( tool && tool->CanBeToggled() )
 672     {
 673         tool->Toggle();
 674
 675         DrawTool(tool);
 676     }
 677 }
 678
 679 // ----------------------------------------------------------------------------
 680 // scrolling implementation
 681 // ----------------------------------------------------------------------------
 682
 683 /*
 684  * pixelsPerUnitX/pixelsPerUnitY: number of pixels per unit (e.g. pixels per text line)
 685  * noUnitsX/noUnitsY:        : no. units per scrollbar
 686  */
 687 void wxToolBarSimple::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY,
 688                                    int noUnitsX, int noUnitsY,
 689                                    int xPos, int yPos)
 690 {
 691     m_xScrollPixelsPerLine = pixelsPerUnitX;
 692     m_yScrollPixelsPerLine = pixelsPerUnitY;
 693     m_xScrollLines = noUnitsX;
 694     m_yScrollLines = noUnitsY;
 695
 696     int w, h;
 697     GetSize(&w, &h);
 698
 699     // Recalculate scroll bar range and position
 700     if (m_xScrollLines > 0)
 701     {
 702         m_xScrollPosition = xPos;
 703         SetScrollPos (wxHORIZONTAL, m_xScrollPosition, TRUE);
 704     }
 705     else
 706     {
 707         SetScrollbar(wxHORIZONTAL, 0, 0, 0, FALSE);
 708         m_xScrollPosition = 0;
 709     }
 710
 711     if (m_yScrollLines > 0)
 712     {
 713         m_yScrollPosition = yPos;
 714         SetScrollPos (wxVERTICAL, m_yScrollPosition, TRUE);
 715     }
 716     else
 717     {
 718         SetScrollbar(wxVERTICAL, 0, 0, 0, FALSE);
 719         m_yScrollPosition = 0;
 720     }
 721     AdjustScrollbars();
 722     Refresh();
 723
 724 #if 0 //def __WXMSW__
 725     ::UpdateWindow ((HWND) GetHWND());
 726 #endif
 727 }
 728
 729 void wxToolBarSimple::OnScroll(wxScrollEvent& event)
 730 {
 731     int orient = event.GetOrientation();
 732
 733     int nScrollInc = CalcScrollInc(event);
 734     if (nScrollInc == 0)
 735         return;
 736
 737     if (orient == wxHORIZONTAL)
 738     {
 739         int newPos = m_xScrollPosition + nScrollInc;
 740         SetScrollPos(wxHORIZONTAL, newPos, TRUE );
 741     }
 742     else
 743     {
 744         int newPos = m_yScrollPosition + nScrollInc;
 745         SetScrollPos(wxVERTICAL, newPos, TRUE );
 746     }
 747
 748     if (orient == wxHORIZONTAL)
 749     {
 750         if (m_xScrollingEnabled)
 751             ScrollWindow(-m_xScrollPixelsPerLine * nScrollInc, 0, NULL);
 752         else
 753             Refresh();
 754     }
 755     else
 756     {
 757         if (m_yScrollingEnabled)
 758             ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, NULL);
 759         else
 760             Refresh();
 761     }
 762
 763     if (orient == wxHORIZONTAL)
 764     {
 765         m_xScrollPosition += nScrollInc;
 766     }
 767     else
 768     {
 769         m_yScrollPosition += nScrollInc;
 770     }
 771
 772 }
 773
 774 int wxToolBarSimple::CalcScrollInc(wxScrollEvent& event)
 775 {
 776     int pos = event.GetPosition();
 777     int orient = event.GetOrientation();
 778
 779     int nScrollInc = 0;
 780     switch (event.GetEventType())
 781     {
 782         case wxEVT_SCROLL_TOP:
 783             {
 784                 if (orient == wxHORIZONTAL)
 785                     nScrollInc = - m_xScrollPosition;
 786                 else
 787                     nScrollInc = - m_yScrollPosition;
 788                 break;
 789             }
 790         case wxEVT_SCROLL_BOTTOM:
 791             {
 792                 if (orient == wxHORIZONTAL)
 793                     nScrollInc = m_xScrollLines - m_xScrollPosition;
 794                 else
 795                     nScrollInc = m_yScrollLines - m_yScrollPosition;
 796                 break;
 797             }
 798         case wxEVT_SCROLL_LINEUP:
 799             {
 800                 nScrollInc = -1;
 801                 break;
 802             }
 803         case wxEVT_SCROLL_LINEDOWN:
 804             {
 805                 nScrollInc = 1;
 806                 break;
 807             }
 808         case wxEVT_SCROLL_PAGEUP:
 809             {
 810                 if (orient == wxHORIZONTAL)
 811                     nScrollInc = -GetScrollPageSize(wxHORIZONTAL);
 812                 else
 813                     nScrollInc = -GetScrollPageSize(wxVERTICAL);
 814                 break;
 815             }
 816         case wxEVT_SCROLL_PAGEDOWN:
 817             {
 818                 if (orient == wxHORIZONTAL)
 819                     nScrollInc = GetScrollPageSize(wxHORIZONTAL);
 820                 else
 821                     nScrollInc = GetScrollPageSize(wxVERTICAL);
 822                 break;
 823             }
 824         case wxEVT_SCROLL_THUMBTRACK:
 825             {
 826                 if (orient == wxHORIZONTAL)
 827                     nScrollInc = pos - m_xScrollPosition;
 828                 else
 829                     nScrollInc = pos - m_yScrollPosition;
 830                 break;
 831             }
 832         default:
 833             {
 834                 break;
 835             }
 836     }
 837     if (orient == wxHORIZONTAL)
 838     {
 839         int w, h;
 840         GetClientSize(&w, &h);
 841
 842         int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 843         int noPositions = (int) ( ((nMaxWidth - w)/(float)m_xScrollPixelsPerLine) + 0.5 );
 844         if (noPositions < 0)
 845             noPositions = 0;
 846
 847         if ( (m_xScrollPosition + nScrollInc) < 0 )
 848             nScrollInc = -m_xScrollPosition; // As -ve as we can go
 849         else if ( (m_xScrollPosition + nScrollInc) > noPositions )
 850             nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
 851
 852         return nScrollInc;
 853     }
 854     else
 855     {
 856         int w, h;
 857         GetClientSize(&w, &h);
 858
 859         int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 860         int noPositions = (int) ( ((nMaxHeight - h)/(float)m_yScrollPixelsPerLine) + 0.5 );
 861         if (noPositions < 0)
 862             noPositions = 0;
 863
 864         if ( (m_yScrollPosition + nScrollInc) < 0 )
 865             nScrollInc = -m_yScrollPosition; // As -ve as we can go
 866         else if ( (m_yScrollPosition + nScrollInc) > noPositions )
 867             nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go
 868
 869         return nScrollInc;
 870     }
 871 }
 872
 873 // Adjust the scrollbars - new version.
 874 void wxToolBarSimple::AdjustScrollbars()
 875 {
 876     int w, h;
 877     GetClientSize(&w, &h);
 878
 879     // Recalculate scroll bar range and position
 880     if (m_xScrollLines > 0)
 881     {
 882         int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine;
 883         int newRange = (int) ( ((nMaxWidth)/(float)m_xScrollPixelsPerLine) + 0.5 );
 884         if (newRange < 0)
 885             newRange = 0;
 886
 887         m_xScrollPosition = wxMin(newRange, m_xScrollPosition);
 888
 889         // Calculate page size i.e. number of scroll units you get on the
 890         // current client window
 891         int noPagePositions = (int) ( (w/(float)m_xScrollPixelsPerLine) + 0.5 );
 892         if (noPagePositions < 1)
 893             noPagePositions = 1;
 894
 895         SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, newRange);
 896         SetScrollPageSize(wxHORIZONTAL, noPagePositions);
 897     }
 898     if (m_yScrollLines > 0)
 899     {
 900         int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine;
 901         int newRange = (int) ( ((nMaxHeight)/(float)m_yScrollPixelsPerLine) + 0.5 );
 902         if (newRange < 0)
 903             newRange = 0;
 904
 905         m_yScrollPosition = wxMin(newRange, m_yScrollPosition);
 906
 907         // Calculate page size i.e. number of scroll units you get on the
 908         // current client window
 909         int noPagePositions = (int) ( (h/(float)m_yScrollPixelsPerLine) + 0.5 );
 910         if (noPagePositions < 1)
 911             noPagePositions = 1;
 912
 913         SetScrollbar(wxVERTICAL, m_yScrollPosition, noPagePositions, newRange);
 914         SetScrollPageSize(wxVERTICAL, noPagePositions);
 915     }
 916 }
 917
 918 // Prepare the DC by translating it according to the current scroll position
 919 void wxToolBarSimple::PrepareDC(wxDC& dc)
 920 {
 921     dc.SetDeviceOrigin(- m_xScrollPosition * m_xScrollPixelsPerLine, - m_yScrollPosition * m_yScrollPixelsPerLine);
 922 }
 923
 924 void wxToolBarSimple::GetScrollPixelsPerUnit (int *x_unit, int *y_unit) const
 925 {
 926       *x_unit = m_xScrollPixelsPerLine;
 927       *y_unit = m_yScrollPixelsPerLine;
 928 }
 929
 930 int wxToolBarSimple::GetScrollPageSize(int orient) const
 931 {
 932     if ( orient == wxHORIZONTAL )
 933         return m_xScrollLinesPerPage;
 934     else
 935         return m_yScrollLinesPerPage;
 936 }
 937
 938 void wxToolBarSimple::SetScrollPageSize(int orient, int pageSize)
 939 {
 940     if ( orient == wxHORIZONTAL )
 941         m_xScrollLinesPerPage = pageSize;
 942     else
 943         m_yScrollLinesPerPage = pageSize;
 944 }
 945
 946 /*
 947  * Scroll to given position (scroll position, not pixel position)
 948  */
 949 void wxToolBarSimple::Scroll (int x_pos, int y_pos)
 950 {
 951     int old_x, old_y;
 952     ViewStart (&old_x, &old_y);
 953     if (((x_pos == -1) || (x_pos == old_x)) && ((y_pos == -1) || (y_pos == old_y)))
 954         return;
 955
 956     if (x_pos > -1)
 957     {
 958         m_xScrollPosition = x_pos;
 959         SetScrollPos (wxHORIZONTAL, x_pos, TRUE);
 960     }
 961     if (y_pos > -1)
 962     {
 963         m_yScrollPosition = y_pos;
 964         SetScrollPos (wxVERTICAL, y_pos, TRUE);
 965     }
 966     Refresh();
 967
 968 #if 0 //def __WXMSW__
 969     UpdateWindow ((HWND) GetHWND());
 970 #endif
 971 }
 972
 973 void wxToolBarSimple::EnableScrolling (bool x_scroll, bool y_scroll)
 974 {
 975     m_xScrollingEnabled = x_scroll;
 976     m_yScrollingEnabled = y_scroll;
 977 }
 978
 979 void wxToolBarSimple::GetVirtualSize (int *x, int *y) const
 980 {
 981     *x = m_xScrollPixelsPerLine * m_xScrollLines;
 982     *y = m_yScrollPixelsPerLine * m_yScrollLines;
 983 }
 984
 985 // Where the current view starts from
 986 void wxToolBarSimple::ViewStart (int *x, int *y) const
 987 {
 988     *x = m_xScrollPosition;
 989     *y = m_yScrollPosition;
 990 }
 991
 992 #endif // wxUSE_TOOLBAR_SIMPLE