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