src/generic/tabg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        tabg.cpp
   3 // Purpose:     Generic tabbed dialogs
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "tabg.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 "wx/wx.h"
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <stdarg.h>
  30 #include <math.h>
  31
  32 #include "wx/tab.h"
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxTabControl, wxObject)
  35
  36 IMPLEMENT_DYNAMIC_CLASS(wxTabLayer, wxList)
  37
  38 wxTabControl::wxTabControl(wxTabView *v)
  39 {
  40   m_view = v;
  41   m_isSelected = FALSE;
  42   m_labelFont = NULL;
  43   m_offsetX = 0;
  44   m_offsetY = 0;
  45   m_width = 0;
  46   m_height = 0;
  47   m_id = 0;
  48   m_rowPosition = 0;
  49   m_colPosition = 0;
  50 }
  51
  52 wxTabControl::~wxTabControl(void)
  53 {
  54 }
  55
  56 void wxTabControl::OnDraw(wxDC& dc, bool lastInRow)
  57 {
  58     // Old, but in some ways better (drawing opaque tabs)
  59 #if 0
  60   if (!m_view)
  61     return;
  62
  63   // Top-left of tab view area
  64   int viewX = m_view->GetViewRect().x;
  65   int viewY = m_view->GetViewRect().y;
  66
  67   // Top-left of tab control
  68   int tabX = GetX() + viewX;
  69   int tabY = GetY() + viewY;
  70   int tabHeightInc = 0;
  71   if (m_isSelected)
  72   {
  73     tabHeightInc = (view->GetTabSelectionHeight() - view->GetTabHeight());
  74     tabY -= tabHeightInc;
  75   }
  76
  77   dc.SetPen(wxTRANSPARENT_PEN);
  78
  79   // Draw grey background
  80   if (view->GetTabStyle() & wxTAB_STYLE_COLOUR_INTERIOR)
  81   {
  82     dc.SetBrush(m_view->GetBackgroundBrush());
  83
  84     // Add 1 because the pen is transparent. Under Motif, may be different.
  85     dc.DrawRectangle(tabX, tabY, (GetWidth()+1), (GetHeight() + 1 + tabHeightInc));
  86   }
  87
  88   // Draw highlight and shadow
  89   dc.SetPen(m_view->GetHighlightPen());
  90
  91   // Calculate the top of the tab beneath. It's the height of the tab, MINUS
  92   // a bit if the tab below happens to be selected. Check.
  93   wxTabControl *tabBeneath = NULL;
  94   int subtractThis = 0;
  95   if (GetColPosition() > 0)
  96     tabBeneath = m_view->FindTabControlForPosition(GetColPosition() - 1, GetRowPosition());
  97   if (tabBeneath && tabBeneath->IsSelected())
  98     subtractThis = (m_view->GetTabSelectionHeight() - m_view->GetTabHeight());
  99
 100   // Vertical highlight: if first tab, draw to bottom of view
 101   if (tabX == m_view->GetViewRect().x && (m_view->GetTabStyle() & wxTAB_STYLE_DRAW_BOX))
 102     dc.DrawLine(tabX, tabY, tabX, (m_view->GetViewRect().y + m_view->GetViewRect().height));
 103   else if (tabX == m_view->GetViewRect().x)
 104     // Not box drawing, just to top of view.
 105     dc.DrawLine(tabX, tabY, tabX, (m_view->GetViewRect().y));
 106   else
 107     dc.DrawLine(tabX, tabY, tabX, (tabY + GetHeight() + tabHeightInc - subtractThis));
 108
 109   dc.DrawLine(tabX, tabY, (tabX + GetWidth()), tabY);
 110   dc.SetPen(m_view->GetShadowPen());
 111
 112   // Test if we're outside the right-hand edge of the view area
 113   if (((tabX + GetWidth()) >= m_view->GetViewRect().x + m_view->GetViewRect().width) && (m_view->GetTabStyle() & wxTAB_STYLE_DRAW_BOX))
 114   {
 115     int bottomY = m_view->GetViewRect().y + m_view->GetViewRect().height + GetY() + m_view->GetTabHeight() + m_view->GetTopMargin();
 116     // Add a tab height since we wish to draw to the bottom of the view.
 117     dc.DrawLine((tabX + GetWidth()), tabY,
 118       (tabX + GetWidth()), bottomY);
 119
 120     // Calculate the far-right of the view, since we don't wish to
 121     // draw inside that
 122     int rightOfView = m_view->GetViewRect().x + m_view->GetViewRect().width + 1;
 123
 124     // Draw the horizontal bit to connect to the view rectangle
 125     dc.DrawLine((wxMax((tabX + GetWidth() - m_view->GetHorizontalTabOffset()), rightOfView)), (bottomY-1),
 126       (tabX + GetWidth()), (bottomY-1));
 127
 128     // Draw black line to emphasize shadow
 129     dc.SetPen(wxBLACK_PEN);
 130     dc.DrawLine((tabX + GetWidth() + 1), (tabY+1),
 131       (tabX + GetWidth() + 1), bottomY);
 132
 133     // Draw the horizontal bit to connect to the view rectangle
 134     dc.DrawLine((wxMax((tabX + GetWidth() - m_view->GetHorizontalTabOffset()), rightOfView)), (bottomY),
 135       (tabX + GetWidth() + 1), (bottomY));
 136   }
 137   else
 138   {
 139     if (lastInRow)
 140     {
 141       // 25/5/97 UNLESS it's less than the max number of positions in this row
 142
 143       int topY = m_view->GetViewRect().y - m_view->GetTopMargin();
 144
 145       int maxPositions = ((wxTabLayer *)m_view->GetLayers().Nth(0)->Data())->Number();
 146
 147       // Only down to the bottom of the tab, not to the top of the view
 148       if ( GetColPosition() < maxPositions )
 149         topY = tabY + GetHeight() + tabHeightInc;
 150
 151       // Shadow
 152       dc.DrawLine((tabX + GetWidth()), tabY, (tabX + GetWidth()), topY);
 153       // Draw black line to emphasize shadow
 154       dc.SetPen(wxBLACK_PEN);
 155       dc.DrawLine((tabX + GetWidth() + 1), (tabY+1), (tabX + GetWidth() + 1),
 156          topY);
 157     }
 158     else
 159     {
 160       // Calculate the top of the tab beneath. It's the height of the tab, MINUS
 161       // a bit if the tab below (and next col along) happens to be selected. Check.
 162       wxTabControl *tabBeneath = NULL;
 163       int subtractThis = 0;
 164       if (GetColPosition() > 0)
 165         tabBeneath = m_view->FindTabControlForPosition(GetColPosition() - 1, GetRowPosition() + 1);
 166       if (tabBeneath && tabBeneath->IsSelected())
 167         subtractThis = (m_view->GetTabSelectionHeight() - m_view->GetTabHeight());
 168
 169       // Draw only to next tab down.
 170       dc.DrawLine((tabX + GetWidth()), tabY,
 171          (tabX + GetWidth()), (tabY + GetHeight() + tabHeightInc - subtractThis));
 172
 173       // Draw black line to emphasize shadow
 174       dc.SetPen(wxBLACK_PEN);
 175       dc.DrawLine((tabX + GetWidth() + 1), (tabY+1), (tabX + GetWidth() + 1),
 176          (tabY + GetHeight() + tabHeightInc - subtractThis));
 177     }
 178   }
 179
 180   // Draw centered text
 181   int textY = tabY + m_view->GetVerticalTabTextSpacing() + tabHeightInc;
 182
 183   if (m_isSelected)
 184     dc.SetFont(m_view->GetSelectedTabFont());
 185   else
 186     dc.SetFont(GetFont());
 187
 188   wxColour col(m_view->GetTextColour());
 189   dc.SetTextForeground(&col);
 190 //  dc.SetTextForeground(&(m_view->GetTextColour()));
 191   dc.SetBackgroundMode(wxTRANSPARENT);
 192   float textWidth, textHeight;
 193   dc.GetTextExtent(GetLabel(), &textWidth, &textHeight);
 194
 195   int textX = (int)(tabX + (GetWidth() - textWidth)/2.0);
 196   dc.DrawText(GetLabel(), textX, textY);
 197
 198   if (m_isSelected)
 199   {
 200     dc.SetPen(m_view->GetHighlightPen());
 201
 202     // Draw white highlight from the tab's left side to the left hand edge of the view
 203     dc.DrawLine(m_view->GetViewRect().x, (tabY + GetHeight() + tabHeightInc),
 204      tabX, (tabY + GetHeight() + tabHeightInc));
 205
 206     // Draw white highlight from the tab's right side to the right hand edge of the view
 207     dc.DrawLine((tabX + GetWidth()), (tabY + GetHeight() + tabHeightInc),
 208      m_view->GetViewRect().x + m_view->GetViewRect().width, (tabY + GetHeight() + tabHeightInc));
 209   }
 210 #endif
 211
 212 // New HEL version with rounder tabs
 213 #if 1
 214         if (!m_view) return;
 215
 216         int tabInc   = 0;
 217         if (m_isSelected)
 218         {
 219                 tabInc = m_view->GetTabSelectionHeight() - m_view->GetTabHeight();
 220         }
 221         int tabLeft  = GetX() + m_view->GetViewRect().x;
 222         int tabTop   = GetY() + m_view->GetViewRect().y - tabInc;
 223         int tabRight = tabLeft + m_view->GetTabWidth();
 224         int left     = m_view->GetViewRect().x;
 225         int top      = tabTop + m_view->GetTabHeight() + tabInc;
 226         int right    = left + m_view->GetViewRect().width;
 227         int bottom   = top + m_view->GetViewRect().height;
 228
 229         if (m_isSelected)
 230         {
 231                 // TAB is selected - draw TAB and the View's full outline
 232
 233                 dc.SetPen(*(m_view->GetHighlightPen()));
 234                 wxPoint pnts[10];
 235                 int n = 0;
 236                 pnts[n].x = left;                       pnts[n++].y = bottom;
 237                 pnts[n].x = left;                       pnts[n++].y = top;
 238                 pnts[n].x = tabLeft;            pnts[n++].y = top;
 239                 pnts[n].x = tabLeft;                    pnts[n++].y = tabTop + 2;
 240                 pnts[n].x = tabLeft + 2;                pnts[n++].y = tabTop;
 241                 pnts[n].x = tabRight - 1;       pnts[n++].y = tabTop;
 242                 dc.DrawLines(n, pnts);
 243                 if (!lastInRow)
 244                 {
 245                         dc.DrawLine(
 246                                         (tabRight + 2),
 247                                         top,
 248                                         right,
 249                                         top
 250                                         );
 251                 }
 252
 253                 dc.SetPen(*(m_view->GetShadowPen()));
 254                 dc.DrawLine(
 255                                 tabRight,
 256                                 tabTop + 2,
 257                                 tabRight,
 258                                 top
 259                                 );
 260                 dc.DrawLine(
 261                                 right,
 262                                 top,
 263                                 right,
 264                                 bottom
 265                                 );
 266                 dc.DrawLine(
 267                                 right,
 268                                 bottom,
 269                                 left,
 270                                 bottom
 271                                 );
 272
 273                 dc.SetPen(*wxBLACK_PEN);
 274                 dc.DrawPoint(
 275                                 tabRight,
 276                                 tabTop + 1
 277                                 );
 278                 dc.DrawPoint(
 279                                 tabRight + 1,
 280                                 tabTop + 2
 281                                 );
 282                 if (lastInRow)
 283                 {
 284                         dc.DrawLine(
 285                                 tabRight + 1,
 286                                 bottom,
 287                                 tabRight + 1,
 288                                 tabTop + 1
 289                                 );
 290                 }
 291                 else
 292                 {
 293                         dc.DrawLine(
 294                                 tabRight + 1,
 295                                 tabTop + 2,
 296                                 tabRight + 1,
 297                                 top
 298                                 );
 299                         dc.DrawLine(
 300                                 right + 1,
 301                                 top,
 302                                 right + 1,
 303                                 bottom + 1
 304                                 );
 305                 }
 306                 dc.DrawLine(
 307                                 right + 1,
 308                                 bottom + 1,
 309                                 left + 1,
 310                                 bottom + 1
 311                                 );
 312         }
 313         else
 314         {
 315                 // TAB is not selected - just draw TAB outline and RH edge
 316                 // if the TAB is the last in the row
 317
 318                 int maxPositions = ((wxTabLayer*)m_view->GetLayers().Nth(0)->Data())->Number();
 319                 wxTabControl* tabBelow = 0;
 320                 wxTabControl* tabBelowRight = 0;
 321                 if (GetColPosition() > 0)
 322                 {
 323                         tabBelow = m_view->FindTabControlForPosition(
 324                                                 GetColPosition() - 1,
 325                                                 GetRowPosition()
 326                                                 );
 327                 }
 328                 if (!lastInRow && GetColPosition() > 0)
 329                 {
 330                         tabBelowRight = m_view->FindTabControlForPosition(
 331                                                 GetColPosition() - 1,
 332                                                 GetRowPosition() + 1
 333                                                 );
 334                 }
 335
 336                 float raisedTop = top - m_view->GetTabSelectionHeight() +
 337                                                         m_view->GetTabHeight();
 338
 339                 dc.SetPen(*(m_view->GetHighlightPen()));
 340                 wxPoint pnts[10];
 341                 int n = 0;
 342
 343                 pnts[n].x = tabLeft;
 344
 345                 if (tabBelow && tabBelow->IsSelected())
 346                 {
 347                         pnts[n++].y = (long)raisedTop;
 348                 }
 349                 else
 350                 {
 351                         pnts[n++].y = top;
 352                 }
 353                 pnts[n].x = tabLeft;                    pnts[n++].y = tabTop + 2;
 354                 pnts[n].x = tabLeft + 2;                pnts[n++].y = tabTop;
 355                 pnts[n].x = tabRight - 1;       pnts[n++].y = tabTop;
 356                 dc.DrawLines(n, pnts);
 357
 358                 dc.SetPen(*(m_view->GetShadowPen()));
 359                 if (GetRowPosition() >= maxPositions - 1)
 360                 {
 361                         dc.DrawLine(
 362                                         tabRight,
 363                                         (tabTop + 2),
 364                                         tabRight,
 365                                         bottom
 366                                         );
 367                         dc.DrawLine(
 368                                         tabRight,
 369                                         bottom,
 370                                         (tabRight - m_view->GetHorizontalTabOffset()),
 371                                         bottom
 372                                         );
 373                 }
 374                 else
 375                 {
 376                         if (tabBelowRight && tabBelowRight->IsSelected())
 377                         {
 378                                 dc.DrawLine(
 379                                                 tabRight,
 380                                                 (long)raisedTop,
 381                                                 tabRight,
 382                                                 tabTop + 1
 383                                                 );
 384                         }
 385                         else
 386                         {
 387                                 dc.DrawLine(
 388                                                 tabRight,
 389                                                 top - 1,
 390                                                 tabRight,
 391                                                 tabTop + 1
 392                                                 );
 393                         }
 394                 }
 395
 396                 dc.SetPen(*wxBLACK_PEN);
 397                 dc.DrawPoint(
 398                                 tabRight,
 399                                 tabTop + 1
 400                                 );
 401                 dc.DrawPoint(
 402                                 tabRight + 1,
 403                                 tabTop + 2
 404                                 );
 405                 if (GetRowPosition() >= maxPositions - 1)
 406                 {
 407                         // draw right hand edge to bottom of view
 408                         dc.DrawLine(
 409                                         tabRight + 1,
 410                                         bottom + 1,
 411                                         tabRight + 1,
 412                                         tabTop + 2
 413                                         );
 414                         dc.DrawLine(
 415                                         tabRight + 1,
 416                                         bottom + 1,
 417                                         (tabRight - m_view->GetHorizontalTabOffset()),
 418                                         bottom + 1
 419                                         );
 420                 }
 421                 else
 422                 {
 423                         // draw right hand edge of TAB
 424                         if (tabBelowRight && tabBelowRight->IsSelected())
 425                         {
 426                                 dc.DrawLine(
 427                                                 tabRight + 1,
 428                                                 (long)(raisedTop - 1),
 429                                                 tabRight + 1,
 430                                                 tabTop + 2
 431                                                 );
 432                         }
 433                         else
 434                         {
 435                                 dc.DrawLine(
 436                                                 tabRight + 1,
 437                                                 top - 1,
 438                                                 tabRight + 1,
 439                                                 tabTop + 2
 440                                                 );
 441                         }
 442                 }
 443         }
 444
 445         // Draw centered text
 446         dc.SetPen(*wxBLACK_PEN);
 447         if (m_isSelected)
 448         {
 449                 dc.SetFont(*(m_view->GetSelectedTabFont()));
 450         }
 451         else
 452         {
 453                 dc.SetFont(*(GetFont()));
 454         }
 455
 456         wxColour col(m_view->GetTextColour());
 457         dc.SetTextForeground(col);
 458         dc.SetBackgroundMode(wxTRANSPARENT);
 459         long textWidth, textHeight;
 460         dc.GetTextExtent(GetLabel(), &textWidth, &textHeight);
 461
 462         float textX = (tabLeft + tabRight - textWidth) / 2;
 463         float textY = (tabInc + tabTop + m_view->GetVerticalTabTextSpacing());
 464
 465         dc.DrawText(GetLabel(), (long)textX, (long)textY);
 466 #endif
 467 }
 468
 469 bool wxTabControl::HitTest(int x, int y) const
 470 {
 471   // Top-left of tab control
 472   int tabX1 = GetX() + m_view->GetViewRect().x;
 473   int tabY1 = GetY() + m_view->GetViewRect().y;
 474
 475   // Bottom-right
 476   int tabX2 = tabX1 + GetWidth();
 477   int tabY2 = tabY1 + GetHeight();
 478
 479   if (x >= tabX1 && y >= tabY1 && x <= tabX2 && y <= tabY2)
 480     return TRUE;
 481   else
 482     return FALSE;
 483 }
 484
 485 IMPLEMENT_DYNAMIC_CLASS(wxTabView, wxObject)
 486
 487 wxTabView::wxTabView(long style)
 488 {
 489   m_noTabs = 0;
 490   m_tabStyle = style;
 491   m_tabSelection = -1;
 492   m_tabHeight = 20;
 493   m_tabSelectionHeight = m_tabHeight + 2;
 494   m_tabWidth = 80;
 495   m_tabHorizontalOffset = 10;
 496   m_tabHorizontalSpacing = 2;
 497   m_tabVerticalTextSpacing = 3;
 498   m_topMargin = 5;
 499   m_tabViewRect.x = 20;
 500   m_tabViewRect.y = 20;
 501   m_tabViewRect.width = 300;
 502   m_tabViewRect.x = 300;
 503   m_highlightColour = *wxWHITE;
 504   m_shadowColour = wxColour(128, 128, 128);
 505   m_backgroundColour = *wxLIGHT_GREY;
 506   m_textColour = *wxBLACK;
 507   m_highlightPen = wxWHITE_PEN;
 508   m_shadowPen = wxGREY_PEN;
 509   m_backgroundPen = wxLIGHT_GREY_PEN;
 510   m_backgroundBrush = wxLIGHT_GREY_BRUSH;
 511   m_tabFont = wxTheFontList->FindOrCreateFont(9, wxSWISS, wxNORMAL, wxNORMAL);
 512   m_tabSelectedFont = wxTheFontList->FindOrCreateFont(9, wxSWISS, wxNORMAL, wxBOLD);
 513   m_window = NULL;
 514 }
 515
 516 wxTabView::~wxTabView()
 517 {
 518 }
 519
 520 // Automatically positions tabs
 521 wxTabControl *wxTabView::AddTab(int id, const wxString& label, wxTabControl *existingTab)
 522 {
 523   // First, find which layer we should be adding to.
 524   wxNode *node = m_layers.Last();
 525   if (!node)
 526   {
 527     wxTabLayer *newLayer = new wxTabLayer;
 528     node = m_layers.Append(newLayer);
 529   }
 530   // Check if adding another tab control would go off the
 531   // right-hand edge of the layer.
 532   wxTabLayer *tabLayer = (wxTabLayer *)node->Data();
 533   wxNode *lastTabNode = tabLayer->Last();
 534   if (lastTabNode)
 535   {
 536     wxTabControl *lastTab = (wxTabControl *)lastTabNode->Data();
 537     // Start another layer (row).
 538     // Tricky choice: can't just check if will be overlapping the edge, because
 539     // this happens anyway for 2nd and subsequent rows.
 540     // Should check this for 1st row, and then subsequent rows should not exceed 1st
 541     // in length.
 542     if (((tabLayer == m_layers.First()->Data()) && ((lastTab->GetX() + 2*lastTab->GetWidth() + GetHorizontalTabSpacing())
 543               > GetViewRect().width)) ||
 544         ((tabLayer != m_layers.First()->Data()) && (tabLayer->Number() == ((wxTabLayer *)m_layers.First()->Data())->Number())))
 545     {
 546       tabLayer = new wxTabLayer;
 547       m_layers.Append(tabLayer);
 548       lastTabNode = NULL;
 549     }
 550   }
 551   int layer = m_layers.Number() - 1;
 552
 553   wxTabControl *tabControl = existingTab;
 554   if (!existingTab)
 555     tabControl = OnCreateTabControl();
 556   tabControl->SetRowPosition(tabLayer->Number());
 557   tabControl->SetColPosition(layer);
 558
 559   wxTabControl *lastTab = NULL;
 560   if (lastTabNode)
 561     lastTab = (wxTabControl *)lastTabNode->Data();
 562
 563   // Top of new tab
 564   int verticalOffset = (- GetTopMargin()) - ((layer+1)*GetTabHeight());
 565   // Offset from view top-left
 566   int horizontalOffset = 0;
 567   if (!lastTab)
 568     horizontalOffset = layer*GetHorizontalTabOffset();
 569   else
 570     horizontalOffset = lastTab->GetX() + GetTabWidth() + GetHorizontalTabSpacing();
 571
 572   tabControl->SetPosition(horizontalOffset, verticalOffset);
 573   tabControl->SetSize(GetTabWidth(), GetTabHeight());
 574   tabControl->SetId(id);
 575   tabControl->SetLabel(label);
 576   tabControl->SetFont(GetTabFont());
 577
 578   tabLayer->Append(tabControl);
 579   m_noTabs ++;
 580
 581   return tabControl;
 582 }
 583
 584 void wxTabView::ClearTabs(bool deleteTabs)
 585 {
 586   wxNode *layerNode = m_layers.First();
 587   while (layerNode)
 588   {
 589     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 590     wxNode *tabNode = layer->First();
 591     while (tabNode)
 592     {
 593       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 594       if (deleteTabs)
 595         delete tab;
 596       wxNode *next = tabNode->Next();
 597       delete tabNode;
 598       tabNode = next;
 599     }
 600     wxNode *nextLayerNode = layerNode->Next();
 601     delete layer;
 602     delete layerNode;
 603     layerNode = nextLayerNode;
 604   }
 605 }
 606
 607 // Layout tabs (optional, e.g. if resizing window)
 608 void wxTabView::Layout(void)
 609 {
 610   // Make a list of the tab controls, deleting the wxTabLayers.
 611   wxList controls;
 612
 613   wxNode *layerNode = m_layers.First();
 614   while (layerNode)
 615   {
 616     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 617     wxNode *tabNode = layer->First();
 618     while (tabNode)
 619     {
 620       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 621       controls.Append(tab);
 622       wxNode *next = tabNode->Next();
 623       delete tabNode;
 624       tabNode = next;
 625     }
 626     wxNode *nextLayerNode = layerNode->Next();
 627     delete layer;
 628     delete layerNode;
 629     layerNode = nextLayerNode;
 630   }
 631
 632   wxTabControl *lastTab = NULL;
 633
 634   wxTabLayer *currentLayer = new wxTabLayer;
 635   m_layers.Append(currentLayer);
 636
 637   wxNode *node = controls.First();
 638   while (node)
 639   {
 640     wxTabControl *tabControl = (wxTabControl *)node->Data();
 641     if (lastTab)
 642     {
 643       // Start another layer (row).
 644       // Tricky choice: can't just check if will be overlapping the edge, because
 645       // this happens anyway for 2nd and subsequent rows.
 646       // Should check this for 1st row, and then subsequent rows should not exceed 1st
 647       // in length.
 648       if (((currentLayer == m_layers.First()->Data()) && ((lastTab->GetX() + 2*lastTab->GetWidth() + GetHorizontalTabSpacing())
 649                 > GetViewRect().width)) ||
 650           ((currentLayer != m_layers.First()->Data()) && (currentLayer->Number() == ((wxTabLayer *)m_layers.First()->Data())->Number())))
 651      {
 652        currentLayer = new wxTabLayer;
 653        m_layers.Append(currentLayer);
 654        lastTab = NULL;
 655      }
 656     }
 657
 658     int layer = m_layers.Number() - 1;
 659
 660     tabControl->SetRowPosition(currentLayer->Number());
 661     tabControl->SetColPosition(layer);
 662
 663     // Top of new tab
 664     int verticalOffset = (- GetTopMargin()) - ((layer+1)*GetTabHeight());
 665     // Offset from view top-left
 666     int horizontalOffset = 0;
 667     if (!lastTab)
 668       horizontalOffset = layer*GetHorizontalTabOffset();
 669     else
 670       horizontalOffset = lastTab->GetX() + GetTabWidth() + GetHorizontalTabSpacing();
 671
 672     tabControl->SetPosition(horizontalOffset, verticalOffset);
 673     tabControl->SetSize(GetTabWidth(), GetTabHeight());
 674
 675     currentLayer->Append(tabControl);
 676     lastTab = tabControl;
 677
 678     node = node->Next();
 679   }
 680
 681   // Move the selected tab to the bottom
 682   wxTabControl *control = FindTabControlForId(m_tabSelection);
 683   if (control)
 684     MoveSelectionTab(control);
 685
 686 }
 687
 688 // Draw all tabs
 689 void wxTabView::Draw(wxDC& dc)
 690 {
 691         // Draw top margin area (beneath tabs and above view area)
 692         if (GetTabStyle() & wxTAB_STYLE_COLOUR_INTERIOR)
 693         {
 694                 dc.SetPen(*wxTRANSPARENT_PEN);
 695                 dc.SetBrush(*GetBackgroundBrush());
 696
 697                 // Add 1 because the pen is transparent. Under Motif, may be different.
 698                 dc.DrawRectangle(
 699                                 m_tabViewRect.x,
 700                                 (m_tabViewRect.y - m_topMargin),
 701                                 (m_tabViewRect.width + 1),
 702                                 (m_topMargin + 1)
 703                                 );
 704         }
 705
 706         // Draw layers in reverse order
 707         wxNode *node = m_layers.Last();
 708         while (node)
 709         {
 710                 wxTabLayer *layer = (wxTabLayer *)node->Data();
 711                 wxNode *node2 = layer->First();
 712                 while (node2)
 713                 {
 714                         wxTabControl *control = (wxTabControl *)node2->Data();
 715                         control->OnDraw(dc, (node2->Next() == NULL));
 716                         node2 = node2->Next();
 717                 }
 718
 719                 node = node->Previous();
 720         }
 721
 722
 723 #if 0
 724         if (GetTabStyle() & wxTAB_STYLE_DRAW_BOX)
 725         {
 726                 dc.SetPen(GetShadowPen());
 727
 728                 // Draw bottom line
 729                 dc.DrawLine(
 730                                 (GetViewRect().x + 1),
 731                                 (GetViewRect().y + GetViewRect().height),
 732                                 (GetViewRect().x + GetViewRect().width),
 733                                 (GetViewRect().y + GetViewRect().height)
 734                                 );
 735
 736                 // Draw right line
 737                 dc.DrawLine(
 738                                 (GetViewRect().x + GetViewRect().width),
 739                                 (GetViewRect().y - GetTopMargin() + 1),
 740                                 (GetViewRect().x + GetViewRect().width),
 741                                 (GetViewRect().y + GetViewRect().height)
 742                                 );
 743
 744                 dc.SetPen(wxBLACK_PEN);
 745
 746                 // Draw bottom line
 747                 dc.DrawLine(
 748                                 (GetViewRect().x),
 749                                 (GetViewRect().y + GetViewRect().height + 1),
 750                                 (GetViewRect().x + GetViewRect().width),
 751                                 (GetViewRect().y + GetViewRect().height + 1)
 752                                 );
 753
 754                 // Draw right line
 755                 dc.DrawLine(
 756                                 (GetViewRect().x + GetViewRect().width + 1),
 757                                 (GetViewRect().y - GetTopMargin()),
 758                                 (GetViewRect().x + GetViewRect().width + 1),
 759                                 (GetViewRect().y + GetViewRect().height + 1)
 760                                 );
 761         }
 762 #endif
 763 }
 764
 765 // Process mouse event, return FALSE if we didn't process it
 766 bool wxTabView::OnEvent(wxMouseEvent& event)
 767 {
 768   if (!event.LeftDown())
 769     return FALSE;
 770
 771   float x, y;
 772   event.Position(&x, &y);
 773
 774   wxTabControl *hitControl = NULL;
 775
 776   wxNode *node = m_layers.First();
 777   while (node)
 778   {
 779     wxTabLayer *layer = (wxTabLayer *)node->Data();
 780     wxNode *node2 = layer->First();
 781     while (node2)
 782     {
 783       wxTabControl *control = (wxTabControl *)node2->Data();
 784       if (control->HitTest((int)x, (int)y))
 785       {
 786         hitControl = control;
 787         node = NULL;
 788         node2 = NULL;
 789       }
 790       else
 791         node2 = node2->Next();
 792     }
 793
 794     if (node)
 795       node = node->Next();
 796   }
 797
 798   if (!hitControl)
 799     return FALSE;
 800
 801   wxTabControl *currentTab = FindTabControlForId(m_tabSelection);
 802
 803   if (hitControl == currentTab)
 804     return FALSE;
 805
 806   ChangeTab(hitControl);
 807
 808   return TRUE;
 809 }
 810
 811 bool wxTabView::ChangeTab(wxTabControl *control)
 812 {
 813   wxTabControl *currentTab = FindTabControlForId(m_tabSelection);
 814   int oldTab = -1;
 815   if (currentTab)
 816     oldTab = currentTab->GetId();
 817
 818   if (control == currentTab)
 819     return TRUE;
 820
 821   if (m_layers.Number() == 0)
 822     return FALSE;
 823
 824   if (!OnTabPreActivate(control->GetId(), oldTab))
 825     return FALSE;
 826
 827   // Move the tab to the bottom
 828   MoveSelectionTab(control);
 829
 830   if (currentTab)
 831     currentTab->SetSelected(FALSE);
 832
 833   control->SetSelected(TRUE);
 834   m_tabSelection = control->GetId();
 835
 836   OnTabActivate(control->GetId(), oldTab);
 837
 838   // Leave window refresh for the implementing window
 839
 840   return TRUE;
 841 }
 842
 843 // Move the selected tab to the bottom layer, if necessary,
 844 // without calling app activation code
 845 bool wxTabView::MoveSelectionTab(wxTabControl *control)
 846 {
 847   if (m_layers.Number() == 0)
 848     return FALSE;
 849
 850   wxTabLayer *firstLayer = (wxTabLayer *)m_layers.First()->Data();
 851
 852   // Find what column this tab is at, so we can swap with the one at the bottom.
 853   // If we're on the bottom layer, then no need to swap.
 854   if (!firstLayer->Member(control))
 855   {
 856     // Do a swap
 857     int col = 0;
 858     wxNode *thisNode = FindTabNodeAndColumn(control, &col);
 859     if (!thisNode)
 860       return FALSE;
 861     wxNode *otherNode = firstLayer->Nth(col);
 862     if (!otherNode)
 863       return FALSE;
 864
 865     // If this is already in the bottom layer, return now
 866     if (otherNode == thisNode)
 867       return TRUE;
 868
 869     wxTabControl *otherTab = (wxTabControl *)otherNode->Data();
 870
 871     // We now have pointers to the tab to be changed to,
 872     // and the tab on the first layer. Swap tab structures and
 873     // position details.
 874
 875     int thisX = control->GetX();
 876     int thisY = control->GetY();
 877     int thisColPos = control->GetColPosition();
 878     int otherX = otherTab->GetX();
 879     int otherY = otherTab->GetY();
 880     int otherColPos = otherTab->GetColPosition();
 881
 882     control->SetPosition(otherX, otherY);
 883     control->SetColPosition(otherColPos);
 884     otherTab->SetPosition(thisX, thisY);
 885     otherTab->SetColPosition(thisColPos);
 886
 887     // Swap the data for the nodes
 888     thisNode->SetData(otherTab);
 889     otherNode->SetData(control);
 890   }
 891   return TRUE;
 892 }
 893
 894 // Called when a tab is activated
 895 void wxTabView::OnTabActivate(int /*activateId*/, int /*deactivateId*/)
 896 {
 897 }
 898
 899 void wxTabView::SetHighlightColour(const wxColour& col)
 900 {
 901   m_highlightColour = col;
 902   m_highlightPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
 903 }
 904
 905 void wxTabView::SetShadowColour(const wxColour& col)
 906 {
 907   m_shadowColour = col;
 908   m_shadowPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
 909 }
 910
 911 void wxTabView::SetBackgroundColour(const wxColour& col)
 912 {
 913   m_backgroundColour = col;
 914   m_backgroundPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
 915   m_backgroundBrush = wxTheBrushList->FindOrCreateBrush(col, wxSOLID);
 916 }
 917
 918 void wxTabView::SetTabSelection(int sel, bool activateTool)
 919 {
 920   int oldSel = m_tabSelection;
 921   wxTabControl *control = FindTabControlForId(sel);
 922
 923   if (!OnTabPreActivate(sel, oldSel))
 924     return;
 925
 926   if (control)
 927     control->SetSelected((sel != 0)); // TODO ??
 928   else
 929   {
 930     wxMessageBox("Could not find tab for id", "Error", wxOK);
 931     return;
 932   }
 933
 934   m_tabSelection = sel;
 935   MoveSelectionTab(control);
 936
 937   if (activateTool)
 938     OnTabActivate(sel, oldSel);
 939 }
 940
 941 // Find tab control for id
 942 wxTabControl *wxTabView::FindTabControlForId(int id) const
 943 {
 944   wxNode *node1 = m_layers.First();
 945   while (node1)
 946   {
 947     wxTabLayer *layer = (wxTabLayer *)node1->Data();
 948     wxNode *node2 = layer->First();
 949     while (node2)
 950     {
 951       wxTabControl *control = (wxTabControl *)node2->Data();
 952       if (control->GetId() == id)
 953         return control;
 954       node2 = node2->Next();
 955     }
 956     node1 = node1->Next();
 957   }
 958   return NULL;
 959 }
 960
 961 // Find tab control for layer, position (starting from zero)
 962 wxTabControl *wxTabView::FindTabControlForPosition(int layer, int position) const
 963 {
 964   wxNode *node1 = m_layers.Nth(layer);
 965   if (!node1)
 966     return NULL;
 967   wxTabLayer *tabLayer = (wxTabLayer *)node1->Data();
 968   wxNode *node2 = tabLayer->Nth(position);
 969   if (!node2)
 970     return NULL;
 971   return (wxTabControl *)node2->Data();
 972 }
 973
 974 // Find the node and the column at which this control is positioned.
 975 wxNode *wxTabView::FindTabNodeAndColumn(wxTabControl *control, int *col) const
 976 {
 977   wxNode *node1 = m_layers.First();
 978   while (node1)
 979   {
 980     wxTabLayer *layer = (wxTabLayer *)node1->Data();
 981     int c = 0;
 982     wxNode *node2 = layer->First();
 983     while (node2)
 984     {
 985       wxTabControl *cnt = (wxTabControl *)node2->Data();
 986       if (cnt == control)
 987       {
 988         *col = c;
 989         return node2;
 990       }
 991       node2 = node2->Next();
 992       c ++;
 993     }
 994     node1 = node1->Next();
 995   }
 996   return NULL;
 997 }
 998
 999 int wxTabView::CalculateTabWidth(int noTabs, bool adjustView)
1000 {
1001   m_tabWidth = (int)((m_tabViewRect.width - ((noTabs - 1)*GetHorizontalTabSpacing()))/noTabs);
1002   if (adjustView)
1003   {
1004     m_tabViewRect.width = noTabs*m_tabWidth + ((noTabs-1)*GetHorizontalTabSpacing());
1005   }
1006   return m_tabWidth;
1007 }
1008
1009 /*
1010  * wxTabbedDialog
1011  */
1012
1013 IMPLEMENT_CLASS(wxTabbedDialog, wxDialog)
1014
1015 BEGIN_EVENT_TABLE(wxTabbedDialog, wxDialog)
1016     EVT_CLOSE(wxTabbedDialog::OnCloseWindow)
1017     EVT_MOUSE_EVENTS(wxTabbedDialog::OnMouseEvent)
1018     EVT_PAINT(wxTabbedDialog::OnPaint)
1019 END_EVENT_TABLE()
1020
1021 wxTabbedDialog::wxTabbedDialog(wxWindow *parent, wxWindowID id,
1022     const wxString& title,
1023     const wxPoint& pos, const wxSize& size,
1024     long windowStyle, const wxString& name):
1025    wxDialog(parent, id, title, pos, size, windowStyle, name)
1026 {
1027   m_tabView = NULL;
1028 }
1029
1030 wxTabbedDialog::~wxTabbedDialog(void)
1031 {
1032   if (m_tabView)
1033     delete m_tabView;
1034 }
1035
1036 void wxTabbedDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event) )
1037 {
1038   Destroy();
1039 }
1040
1041 void wxTabbedDialog::OnMouseEvent(wxMouseEvent& event )
1042 {
1043   if (m_tabView)
1044     m_tabView->OnEvent(event);
1045 }
1046
1047 void wxTabbedDialog::OnPaint(wxPaintEvent& WXUNUSED(event) )
1048 {
1049     wxPaintDC dc(this);
1050     if (m_tabView)
1051         m_tabView->Draw(dc);
1052 }
1053
1054 /*
1055  * wxTabbedPanel
1056  */
1057
1058 IMPLEMENT_CLASS(wxTabbedPanel, wxPanel)
1059
1060 BEGIN_EVENT_TABLE(wxTabbedPanel, wxPanel)
1061     EVT_MOUSE_EVENTS(wxTabbedPanel::OnMouseEvent)
1062     EVT_PAINT(wxTabbedPanel::OnPaint)
1063 END_EVENT_TABLE()
1064
1065 wxTabbedPanel::wxTabbedPanel(wxWindow *parent, wxWindowID id, const wxPoint& pos,
1066    const wxSize& size, long windowStyle, const wxString& name):
1067    wxPanel(parent, id, pos, size, windowStyle, name)
1068 {
1069   m_tabView = NULL;
1070 }
1071
1072 wxTabbedPanel::~wxTabbedPanel(void)
1073 {
1074   delete m_tabView;
1075 }
1076
1077 void wxTabbedPanel::OnMouseEvent(wxMouseEvent& event)
1078 {
1079   if (m_tabView)
1080     m_tabView->OnEvent(event);
1081 }
1082
1083 void wxTabbedPanel::OnPaint(wxPaintEvent& WXUNUSED(event) )
1084 {
1085     wxPaintDC dc(this);
1086     if (m_tabView)
1087         m_tabView->Draw(dc);
1088 }
1089
1090 /*
1091  * wxDialogTabView
1092  */
1093
1094 IMPLEMENT_CLASS(wxPanelTabView, wxTabView)
1095
1096 wxPanelTabView::wxPanelTabView(wxPanel *pan, long style): wxTabView(style), m_tabWindows(wxKEY_INTEGER)
1097 {
1098   m_panel = pan;
1099   m_currentWindow = NULL;
1100
1101   if (m_panel->IsKindOf(CLASSINFO(wxTabbedDialog)))
1102     ((wxTabbedDialog *)m_panel)->SetTabView(this);
1103   else if (m_panel->IsKindOf(CLASSINFO(wxTabbedPanel)))
1104     ((wxTabbedPanel *)m_panel)->SetTabView(this);
1105
1106   SetWindow(m_panel);
1107 }
1108
1109 wxPanelTabView::~wxPanelTabView(void)
1110 {
1111   ClearWindows(TRUE);
1112 }
1113
1114 // Called when a tab is activated
1115 void wxPanelTabView::OnTabActivate(int activateId, int deactivateId)
1116 {
1117   if (!m_panel)
1118     return;
1119
1120   wxWindow *oldWindow = ((deactivateId == -1) ? 0 : GetTabWindow(deactivateId));
1121   wxWindow *newWindow = GetTabWindow(activateId);
1122
1123   if (oldWindow)
1124     oldWindow->Show(FALSE);
1125   if (newWindow)
1126     newWindow->Show(TRUE);
1127
1128   m_panel->Refresh();
1129 }
1130
1131
1132 void wxPanelTabView::AddTabWindow(int id, wxWindow *window)
1133 {
1134   m_tabWindows.Append((long)id, window);
1135   window->Show(FALSE);
1136 }
1137
1138 wxWindow *wxPanelTabView::GetTabWindow(int id) const
1139 {
1140   wxNode *node = m_tabWindows.Find((long)id);
1141   if (!node)
1142     return NULL;
1143   return (wxWindow *)node->Data();
1144 }
1145
1146 void wxPanelTabView::ClearWindows(bool deleteWindows)
1147 {
1148   if (deleteWindows)
1149     m_tabWindows.DeleteContents(TRUE);
1150   m_tabWindows.Clear();
1151   m_tabWindows.DeleteContents(FALSE);
1152 }
1153
1154 void wxPanelTabView::ShowWindowForTab(int id)
1155 {
1156   wxWindow *newWindow = GetTabWindow(id);
1157   if (newWindow == m_currentWindow)
1158     return;
1159   if (m_currentWindow)
1160     m_currentWindow->Show(FALSE);
1161   newWindow->Show(TRUE);
1162   newWindow->Refresh();
1163 }
1164