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 #if wxUSE_TAB_DIALOG
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/wx.h"
  27 #endif
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <stdarg.h>
  32 #include <math.h>
  33
  34 #include "wx/tab.h"
  35
  36 // not defined: use old, square tab implementation (fills in tabs)
  37 // defined: use new, rounded tab implementation (doesn't colour in tabs)
  38 // #define wxUSE_NEW_METHOD
  39
  40 IMPLEMENT_DYNAMIC_CLASS(wxTabControl, wxObject)
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxTabLayer, wxList)
  43
  44 wxTabControl::wxTabControl(wxTabView *v)
  45 {
  46   m_view = v;
  47   m_isSelected = FALSE;
  48   m_offsetX = 0;
  49   m_offsetY = 0;
  50   m_width = 0;
  51   m_height = 0;
  52   m_id = 0;
  53   m_rowPosition = 0;
  54   m_colPosition = 0;
  55 }
  56
  57 wxTabControl::~wxTabControl(void)
  58 {
  59 }
  60
  61 void wxTabControl::OnDraw(wxDC& dc, bool lastInRow)
  62 {
  63     // Old, but in some ways better (drawing opaque tabs)
  64 #ifndef wxUSE_NEW_METHOD
  65   if (!m_view)
  66     return;
  67
  68   // Top-left of tab view area
  69   int viewX = m_view->GetViewRect().x;
  70   int viewY = m_view->GetViewRect().y;
  71
  72   // Top-left of tab control
  73   int tabX = GetX() + viewX;
  74   int tabY = GetY() + viewY;
  75   int tabHeightInc = 0;
  76   if (m_isSelected)
  77   {
  78     tabHeightInc = (m_view->GetTabSelectionHeight() - m_view->GetTabHeight());
  79     tabY -= tabHeightInc;
  80   }
  81
  82   dc.SetPen(*wxTRANSPARENT_PEN);
  83
  84   // Draw grey background
  85   if (m_view->GetTabStyle() & wxTAB_STYLE_COLOUR_INTERIOR)
  86   {
  87     dc.SetBrush(*m_view->GetBackgroundBrush());
  88
  89     // Add 1 because the pen is transparent. Under Motif, may be different.
  90 #ifdef __WXMOTIF__
  91     dc.DrawRectangle(tabX, tabY, (GetWidth()+1), (GetHeight() + tabHeightInc));
  92 #else
  93     dc.DrawRectangle(tabX, tabY, (GetWidth()+1), (GetHeight() + 1 + tabHeightInc));
  94 #endif
  95   }
  96
  97   // Draw highlight and shadow
  98   dc.SetPen(*m_view->GetHighlightPen());
  99
 100   // Calculate the top of the tab beneath. It's the height of the tab, MINUS
 101   // a bit if the tab below happens to be selected. Check.
 102   wxTabControl *tabBeneath = NULL;
 103   int subtractThis = 0;
 104   if (GetColPosition() > 0)
 105     tabBeneath = m_view->FindTabControlForPosition(GetColPosition() - 1, GetRowPosition());
 106   if (tabBeneath && tabBeneath->IsSelected())
 107     subtractThis = (m_view->GetTabSelectionHeight() - m_view->GetTabHeight());
 108
 109   // Vertical highlight: if first tab, draw to bottom of view
 110   if (tabX == m_view->GetViewRect().x && (m_view->GetTabStyle() & wxTAB_STYLE_DRAW_BOX))
 111     dc.DrawLine(tabX, tabY, tabX, (m_view->GetViewRect().y + m_view->GetViewRect().height));
 112   else if (tabX == m_view->GetViewRect().x)
 113     // Not box drawing, just to top of view.
 114     dc.DrawLine(tabX, tabY, tabX, (m_view->GetViewRect().y));
 115   else
 116     dc.DrawLine(tabX, tabY, tabX, (tabY + GetHeight() + tabHeightInc - subtractThis));
 117
 118   dc.DrawLine(tabX, tabY, (tabX + GetWidth()), tabY);
 119   dc.SetPen(*m_view->GetShadowPen());
 120
 121   // Test if we're outside the right-hand edge of the view area
 122   if (((tabX + GetWidth()) >= m_view->GetViewRect().x + m_view->GetViewRect().width) && (m_view->GetTabStyle() & wxTAB_STYLE_DRAW_BOX))
 123   {
 124     int bottomY = m_view->GetViewRect().y + m_view->GetViewRect().height + GetY() + m_view->GetTabHeight() + m_view->GetTopMargin();
 125     // Add a tab height since we wish to draw to the bottom of the view.
 126     dc.DrawLine((tabX + GetWidth()), tabY,
 127       (tabX + GetWidth()), bottomY);
 128
 129     // Calculate the far-right of the view, since we don't wish to
 130     // draw inside that
 131     int rightOfView = m_view->GetViewRect().x + m_view->GetViewRect().width + 1;
 132
 133     // Draw the horizontal bit to connect to the view rectangle
 134     dc.DrawLine((wxMax((tabX + GetWidth() - m_view->GetHorizontalTabOffset()), rightOfView)), (bottomY-1),
 135       (tabX + GetWidth()), (bottomY-1));
 136
 137     // Draw black line to emphasize shadow
 138     dc.SetPen(*wxBLACK_PEN);
 139     dc.DrawLine((tabX + GetWidth() + 1), (tabY+1),
 140       (tabX + GetWidth() + 1), bottomY);
 141
 142     // Draw the horizontal bit to connect to the view rectangle
 143     dc.DrawLine((wxMax((tabX + GetWidth() - m_view->GetHorizontalTabOffset()), rightOfView)), (bottomY),
 144       (tabX + GetWidth() + 1), (bottomY));
 145   }
 146   else
 147   {
 148     if (lastInRow)
 149     {
 150       // 25/5/97 UNLESS it's less than the max number of positions in this row
 151
 152       int topY = m_view->GetViewRect().y - m_view->GetTopMargin();
 153
 154       int maxPositions = ((wxTabLayer *)m_view->GetLayers().Nth(0)->Data())->Number();
 155
 156       // Only down to the bottom of the tab, not to the top of the view
 157       if ( GetRowPosition() < (maxPositions - 1) )
 158         topY = tabY + GetHeight() + tabHeightInc;
 159
 160 #ifdef __WXMOTIF__
 161       topY -= 1;
 162 #endif
 163
 164       // Shadow
 165       dc.DrawLine((tabX + GetWidth()), tabY, (tabX + GetWidth()), topY);
 166       // Draw black line to emphasize shadow
 167       dc.SetPen(*wxBLACK_PEN);
 168       dc.DrawLine((tabX + GetWidth() + 1), (tabY+1), (tabX + GetWidth() + 1),
 169          topY);
 170     }
 171     else
 172     {
 173       // Calculate the top of the tab beneath. It's the height of the tab, MINUS
 174       // a bit if the tab below (and next col along) happens to be selected. Check.
 175       wxTabControl *tabBeneath = NULL;
 176       int subtractThis = 0;
 177       if (GetColPosition() > 0)
 178         tabBeneath = m_view->FindTabControlForPosition(GetColPosition() - 1, GetRowPosition() + 1);
 179       if (tabBeneath && tabBeneath->IsSelected())
 180         subtractThis = (m_view->GetTabSelectionHeight() - m_view->GetTabHeight());
 181
 182 #ifdef __WXMOTIF__
 183       subtractThis += 1;
 184 #endif
 185
 186       // Draw only to next tab down.
 187       dc.DrawLine((tabX + GetWidth()), tabY,
 188          (tabX + GetWidth()), (tabY + GetHeight() + tabHeightInc - subtractThis));
 189
 190       // Draw black line to emphasize shadow
 191       dc.SetPen(*wxBLACK_PEN);
 192       dc.DrawLine((tabX + GetWidth() + 1), (tabY+1), (tabX + GetWidth() + 1),
 193          (tabY + GetHeight() + tabHeightInc - subtractThis));
 194     }
 195   }
 196
 197   // Draw centered text
 198   int textY = tabY + m_view->GetVerticalTabTextSpacing() + tabHeightInc;
 199
 200   if (m_isSelected)
 201     dc.SetFont(* m_view->GetSelectedTabFont());
 202   else
 203     dc.SetFont(* GetFont());
 204
 205   wxColour col(m_view->GetTextColour());
 206   dc.SetTextForeground(col);
 207   dc.SetBackgroundMode(wxTRANSPARENT);
 208   long textWidth, textHeight;
 209   dc.GetTextExtent(GetLabel(), &textWidth, &textHeight);
 210
 211   int textX = (int)(tabX + (GetWidth() - textWidth)/2.0);
 212   if (textX < (tabX + 2))
 213     textX = (tabX + 2);
 214
 215   dc.SetClippingRegion(tabX, tabY, GetWidth(), GetHeight());
 216   dc.DrawText(GetLabel(), textX, textY);
 217   dc.DestroyClippingRegion();
 218
 219   if (m_isSelected)
 220   {
 221     dc.SetPen(*m_view->GetHighlightPen());
 222
 223     // Draw white highlight from the tab's left side to the left hand edge of the view
 224     dc.DrawLine(m_view->GetViewRect().x, (tabY + GetHeight() + tabHeightInc),
 225      tabX, (tabY + GetHeight() + tabHeightInc));
 226
 227     // Draw white highlight from the tab's right side to the right hand edge of the view
 228     dc.DrawLine((tabX + GetWidth()), (tabY + GetHeight() + tabHeightInc),
 229      m_view->GetViewRect().x + m_view->GetViewRect().width, (tabY + GetHeight() + tabHeightInc));
 230   }
 231 #else
 232     // New HEL version with rounder tabs
 233
 234     if (!m_view) return;
 235
 236     int tabInc   = 0;
 237     if (m_isSelected)
 238     {
 239         tabInc = m_view->GetTabSelectionHeight() - m_view->GetTabHeight();
 240     }
 241     int tabLeft  = GetX() + m_view->GetViewRect().x;
 242     int tabTop   = GetY() + m_view->GetViewRect().y - tabInc;
 243     int tabRight = tabLeft + m_view->GetTabWidth();
 244     int left     = m_view->GetViewRect().x;
 245     int top      = tabTop + m_view->GetTabHeight() + tabInc;
 246     int right    = left + m_view->GetViewRect().width;
 247     int bottom   = top + m_view->GetViewRect().height;
 248
 249     if (m_isSelected)
 250     {
 251         // TAB is selected - draw TAB and the View's full outline
 252
 253         dc.SetPen(*(m_view->GetHighlightPen()));
 254         wxPoint pnts[10];
 255         int n = 0;
 256         pnts[n].x = left;            pnts[n++].y = bottom;
 257         pnts[n].x = left;             pnts[n++].y = top;
 258         pnts[n].x = tabLeft;         pnts[n++].y = top;
 259         pnts[n].x = tabLeft;            pnts[n++].y = tabTop + 2;
 260         pnts[n].x = tabLeft + 2;        pnts[n++].y = tabTop;
 261         pnts[n].x = tabRight - 1;    pnts[n++].y = tabTop;
 262         dc.DrawLines(n, pnts);
 263         if (!lastInRow)
 264         {
 265             dc.DrawLine(
 266                     (tabRight + 2),
 267                     top,
 268                     right,
 269                     top
 270                     );
 271         }
 272
 273         dc.SetPen(*(m_view->GetShadowPen()));
 274         dc.DrawLine(
 275                 tabRight,
 276                 tabTop + 2,
 277                 tabRight,
 278                 top
 279                 );
 280         dc.DrawLine(
 281                 right,
 282                 top,
 283                 right,
 284                 bottom
 285                 );
 286         dc.DrawLine(
 287                 right,
 288                 bottom,
 289                 left,
 290                 bottom
 291                 );
 292
 293         dc.SetPen(*wxBLACK_PEN);
 294         dc.DrawPoint(
 295                 tabRight,
 296                 tabTop + 1
 297                 );
 298         dc.DrawPoint(
 299                 tabRight + 1,
 300                 tabTop + 2
 301                 );
 302         if (lastInRow)
 303         {
 304             dc.DrawLine(
 305                 tabRight + 1,
 306                 bottom,
 307                 tabRight + 1,
 308                 tabTop + 1
 309                 );
 310         }
 311         else
 312         {
 313             dc.DrawLine(
 314                 tabRight + 1,
 315                 tabTop + 2,
 316                 tabRight + 1,
 317                 top
 318                 );
 319             dc.DrawLine(
 320                 right + 1,
 321                 top,
 322                 right + 1,
 323                 bottom + 1
 324                 );
 325         }
 326         dc.DrawLine(
 327                 right + 1,
 328                 bottom + 1,
 329                 left + 1,
 330                 bottom + 1
 331                 );
 332     }
 333     else
 334     {
 335         // TAB is not selected - just draw TAB outline and RH edge
 336         // if the TAB is the last in the row
 337
 338         int maxPositions = ((wxTabLayer*)m_view->GetLayers().Nth(0)->Data())->Number();
 339         wxTabControl* tabBelow = 0;
 340         wxTabControl* tabBelowRight = 0;
 341         if (GetColPosition() > 0)
 342         {
 343             tabBelow = m_view->FindTabControlForPosition(
 344                         GetColPosition() - 1,
 345                         GetRowPosition()
 346                         );
 347         }
 348         if (!lastInRow && GetColPosition() > 0)
 349         {
 350             tabBelowRight = m_view->FindTabControlForPosition(
 351                         GetColPosition() - 1,
 352                         GetRowPosition() + 1
 353                         );
 354         }
 355
 356         float raisedTop = top - m_view->GetTabSelectionHeight() +
 357                             m_view->GetTabHeight();
 358
 359         dc.SetPen(*(m_view->GetHighlightPen()));
 360         wxPoint pnts[10];
 361         int n = 0;
 362
 363         pnts[n].x = tabLeft;
 364
 365         if (tabBelow && tabBelow->IsSelected())
 366         {
 367             pnts[n++].y = (long)raisedTop;
 368         }
 369         else
 370         {
 371             pnts[n++].y = top;
 372         }
 373         pnts[n].x = tabLeft;            pnts[n++].y = tabTop + 2;
 374         pnts[n].x = tabLeft + 2;        pnts[n++].y = tabTop;
 375         pnts[n].x = tabRight - 1;    pnts[n++].y = tabTop;
 376         dc.DrawLines(n, pnts);
 377
 378         dc.SetPen(*(m_view->GetShadowPen()));
 379         if (GetRowPosition() >= maxPositions - 1)
 380         {
 381             dc.DrawLine(
 382                     tabRight,
 383                     (tabTop + 2),
 384                     tabRight,
 385                     bottom
 386                     );
 387             dc.DrawLine(
 388                     tabRight,
 389                     bottom,
 390                     (tabRight - m_view->GetHorizontalTabOffset()),
 391                     bottom
 392                     );
 393         }
 394         else
 395         {
 396             if (tabBelowRight && tabBelowRight->IsSelected())
 397             {
 398                 dc.DrawLine(
 399                         tabRight,
 400                         (long)raisedTop,
 401                         tabRight,
 402                         tabTop + 1
 403                         );
 404             }
 405             else
 406             {
 407                 dc.DrawLine(
 408                         tabRight,
 409                         top - 1,
 410                         tabRight,
 411                         tabTop + 1
 412                         );
 413             }
 414         }
 415
 416         dc.SetPen(*wxBLACK_PEN);
 417         dc.DrawPoint(
 418                 tabRight,
 419                 tabTop + 1
 420                 );
 421         dc.DrawPoint(
 422                 tabRight + 1,
 423                 tabTop + 2
 424                 );
 425         if (GetRowPosition() >= maxPositions - 1)
 426         {
 427             // draw right hand edge to bottom of view
 428             dc.DrawLine(
 429                     tabRight + 1,
 430                     bottom + 1,
 431                     tabRight + 1,
 432                     tabTop + 2
 433                     );
 434             dc.DrawLine(
 435                     tabRight + 1,
 436                     bottom + 1,
 437                     (tabRight - m_view->GetHorizontalTabOffset()),
 438                     bottom + 1
 439                     );
 440         }
 441         else
 442         {
 443             // draw right hand edge of TAB
 444             if (tabBelowRight && tabBelowRight->IsSelected())
 445             {
 446                 dc.DrawLine(
 447                         tabRight + 1,
 448                         (long)(raisedTop - 1),
 449                         tabRight + 1,
 450                         tabTop + 2
 451                         );
 452             }
 453             else
 454             {
 455                 dc.DrawLine(
 456                         tabRight + 1,
 457                         top - 1,
 458                         tabRight + 1,
 459                         tabTop + 2
 460                         );
 461             }
 462         }
 463     }
 464
 465     // Draw centered text
 466     dc.SetPen(*wxBLACK_PEN);
 467     if (m_isSelected)
 468     {
 469         dc.SetFont(*(m_view->GetSelectedTabFont()));
 470     }
 471     else
 472     {
 473         dc.SetFont(*(GetFont()));
 474     }
 475
 476     wxColour col(m_view->GetTextColour());
 477     dc.SetTextForeground(col);
 478     dc.SetBackgroundMode(wxTRANSPARENT);
 479     long textWidth, textHeight;
 480     dc.GetTextExtent(GetLabel(), &textWidth, &textHeight);
 481
 482     float textX = (tabLeft + tabRight - textWidth) / 2;
 483     float textY = (tabInc + tabTop + m_view->GetVerticalTabTextSpacing());
 484
 485     dc.DrawText(GetLabel(), (long)textX, (long)textY);
 486 #endif
 487 }
 488
 489 bool wxTabControl::HitTest(int x, int y) const
 490 {
 491   // Top-left of tab control
 492   int tabX1 = GetX() + m_view->GetViewRect().x;
 493   int tabY1 = GetY() + m_view->GetViewRect().y;
 494
 495   // Bottom-right
 496   int tabX2 = tabX1 + GetWidth();
 497   int tabY2 = tabY1 + GetHeight();
 498
 499   if (x >= tabX1 && y >= tabY1 && x <= tabX2 && y <= tabY2)
 500     return TRUE;
 501   else
 502     return FALSE;
 503 }
 504
 505 IMPLEMENT_DYNAMIC_CLASS(wxTabView, wxObject)
 506
 507 wxTabView::wxTabView(long style)
 508 {
 509   m_noTabs = 0;
 510   m_tabStyle = style;
 511   m_tabSelection = -1;
 512   m_tabHeight = 20;
 513   m_tabSelectionHeight = m_tabHeight + 2;
 514   m_tabWidth = 80;
 515   m_tabHorizontalOffset = 10;
 516   m_tabHorizontalSpacing = 2;
 517   m_tabVerticalTextSpacing = 3;
 518   m_topMargin = 5;
 519   m_tabViewRect.x = 20;
 520   m_tabViewRect.y = 20;
 521   m_tabViewRect.width = 300;
 522   m_tabViewRect.x = 300;
 523   m_highlightColour = *wxWHITE;
 524   m_shadowColour = wxColour(128, 128, 128);
 525   m_backgroundColour = *wxLIGHT_GREY;
 526   m_textColour = *wxBLACK;
 527   m_highlightPen = wxWHITE_PEN;
 528   m_shadowPen = wxGREY_PEN;
 529   m_backgroundPen = wxLIGHT_GREY_PEN;
 530   m_backgroundBrush = wxLIGHT_GREY_BRUSH;
 531   m_tabFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 532   m_tabSelectedFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 533   m_window = (wxWindow *) NULL;
 534 }
 535
 536 wxTabView::~wxTabView()
 537 {
 538   ClearTabs(TRUE);
 539 }
 540
 541 // Automatically positions tabs
 542 // TODO: this should just add the tab to a list, and then
 543 // a layout function (e.g. Realize) should be called when all tabs have been added.
 544 // The view rect could easily change as the view window is resized.
 545 wxTabControl *wxTabView::AddTab(int id, const wxString& label, wxTabControl *existingTab)
 546 {
 547   // First, find which layer we should be adding to.
 548   wxNode *node = m_layers.Last();
 549   if (!node)
 550   {
 551     wxTabLayer *newLayer = new wxTabLayer;
 552     node = m_layers.Append(newLayer);
 553   }
 554   // Check if adding another tab control would go off the
 555   // right-hand edge of the layer.
 556   wxTabLayer *tabLayer = (wxTabLayer *)node->Data();
 557   wxNode *lastTabNode = tabLayer->Last();
 558   if (lastTabNode)
 559   {
 560     wxTabControl *lastTab = (wxTabControl *)lastTabNode->Data();
 561     // Start another layer (row).
 562     // Tricky choice: can't just check if will be overlapping the edge, because
 563     // this happens anyway for 2nd and subsequent rows.
 564     // Should check this for 1st row, and then subsequent rows should not exceed 1st
 565     // in length.
 566     if (((tabLayer == m_layers.First()->Data()) && ((lastTab->GetX() + 2*lastTab->GetWidth() + GetHorizontalTabSpacing())
 567               > GetViewRect().width)) ||
 568         ((tabLayer != m_layers.First()->Data()) && (tabLayer->Number() == ((wxTabLayer *)m_layers.First()->Data())->Number())))
 569     {
 570       tabLayer = new wxTabLayer;
 571       m_layers.Append(tabLayer);
 572       lastTabNode = (wxNode *) NULL;
 573     }
 574   }
 575   int layer = m_layers.Number() - 1;
 576
 577   wxTabControl *tabControl = existingTab;
 578   if (!existingTab)
 579     tabControl = OnCreateTabControl();
 580   tabControl->SetRowPosition(tabLayer->Number());
 581   tabControl->SetColPosition(layer);
 582
 583   wxTabControl *lastTab = (wxTabControl *) NULL;
 584   if (lastTabNode)
 585     lastTab = (wxTabControl *)lastTabNode->Data();
 586
 587   // Top of new tab
 588   int verticalOffset = (- GetTopMargin()) - ((layer+1)*GetTabHeight());
 589   // Offset from view top-left
 590   int horizontalOffset = 0;
 591   if (!lastTab)
 592     horizontalOffset = layer*GetHorizontalTabOffset();
 593   else
 594     horizontalOffset = lastTab->GetX() + GetTabWidth() + GetHorizontalTabSpacing();
 595
 596   tabControl->SetPosition(horizontalOffset, verticalOffset);
 597   tabControl->SetSize(GetTabWidth(), GetTabHeight());
 598   tabControl->SetId(id);
 599   tabControl->SetLabel(label);
 600   tabControl->SetFont(* GetTabFont());
 601
 602   tabLayer->Append(tabControl);
 603   m_noTabs ++;
 604
 605   return tabControl;
 606 }
 607
 608 // Remove the tab without deleting the window
 609 bool wxTabView::RemoveTab(int id)
 610 {
 611   wxNode *layerNode = m_layers.First();
 612   while (layerNode)
 613   {
 614     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 615     wxNode *tabNode = layer->First();
 616     while (tabNode)
 617     {
 618       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 619       if (tab->GetId() == id)
 620       {
 621         if (id == m_tabSelection)
 622           m_tabSelection = -1;
 623         delete tab;
 624         delete tabNode;
 625         m_noTabs --;
 626
 627         // The layout has changed
 628         LayoutTabs();
 629         return TRUE;
 630       }
 631       tabNode = tabNode->Next();
 632     }
 633     layerNode = layerNode->Next();
 634   }
 635   return FALSE;
 636 }
 637
 638 bool wxTabView::SetTabText(int id, const wxString& label)
 639 {
 640     wxTabControl* control = FindTabControlForId(id);
 641     if (!control)
 642       return FALSE;
 643     control->SetLabel(label);
 644     return TRUE;
 645 }
 646
 647 wxString wxTabView::GetTabText(int id) const
 648 {
 649     wxTabControl* control = FindTabControlForId(id);
 650     if (!control)
 651       return wxEmptyString;
 652     else
 653       return control->GetLabel();
 654 }
 655
 656 // Returns the total height of the tabs component -- this may be several
 657 // times the height of a tab, if there are several tab layers (rows).
 658 int wxTabView::GetTotalTabHeight()
 659 {
 660   int minY = 0;
 661
 662   wxNode *layerNode = m_layers.First();
 663   while (layerNode)
 664   {
 665     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 666     wxNode *tabNode = layer->First();
 667     while (tabNode)
 668     {
 669       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 670
 671       if (tab->GetY() < minY)
 672         minY = tab->GetY();
 673
 674       tabNode = tabNode->Next();
 675     }
 676     layerNode = layerNode->Next();
 677   }
 678
 679   return - minY;
 680 }
 681
 682 void wxTabView::ClearTabs(bool deleteTabs)
 683 {
 684   wxNode *layerNode = m_layers.First();
 685   while (layerNode)
 686   {
 687     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 688     wxNode *tabNode = layer->First();
 689     while (tabNode)
 690     {
 691       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 692       if (deleteTabs)
 693         delete tab;
 694       wxNode *next = tabNode->Next();
 695       delete tabNode;
 696       tabNode = next;
 697     }
 698     wxNode *nextLayerNode = layerNode->Next();
 699     delete layer;
 700     delete layerNode;
 701     layerNode = nextLayerNode;
 702   }
 703   m_noTabs = 0;
 704   m_tabSelection = -1;
 705 }
 706
 707
 708 // Layout tabs (optional, e.g. if resizing window)
 709 void wxTabView::LayoutTabs(void)
 710 {
 711   // Make a list of the tab controls, deleting the wxTabLayers.
 712   wxList controls;
 713
 714   wxNode *layerNode = m_layers.First();
 715   while (layerNode)
 716   {
 717     wxTabLayer *layer = (wxTabLayer *)layerNode->Data();
 718     wxNode *tabNode = layer->First();
 719     while (tabNode)
 720     {
 721       wxTabControl *tab = (wxTabControl *)tabNode->Data();
 722       controls.Append(tab);
 723       wxNode *next = tabNode->Next();
 724       delete tabNode;
 725       tabNode = next;
 726     }
 727     wxNode *nextLayerNode = layerNode->Next();
 728     delete layer;
 729     delete layerNode;
 730     layerNode = nextLayerNode;
 731   }
 732
 733   wxTabControl *lastTab = (wxTabControl *) NULL;
 734
 735   wxTabLayer *currentLayer = new wxTabLayer;
 736   m_layers.Append(currentLayer);
 737
 738   wxNode *node = controls.First();
 739   while (node)
 740   {
 741     wxTabControl *tabControl = (wxTabControl *)node->Data();
 742     if (lastTab)
 743     {
 744       // Start another layer (row).
 745       // Tricky choice: can't just check if will be overlapping the edge, because
 746       // this happens anyway for 2nd and subsequent rows.
 747       // Should check this for 1st row, and then subsequent rows should not exceed 1st
 748       // in length.
 749       if (((currentLayer == m_layers.First()->Data()) && ((lastTab->GetX() + 2*lastTab->GetWidth() + GetHorizontalTabSpacing())
 750                 > GetViewRect().width)) ||
 751           ((currentLayer != m_layers.First()->Data()) && (currentLayer->Number() == ((wxTabLayer *)m_layers.First()->Data())->Number())))
 752      {
 753        currentLayer = new wxTabLayer;
 754        m_layers.Append(currentLayer);
 755        lastTab = (wxTabControl *) NULL;
 756      }
 757     }
 758
 759     int layer = m_layers.Number() - 1;
 760
 761     tabControl->SetRowPosition(currentLayer->Number());
 762     tabControl->SetColPosition(layer);
 763
 764     // Top of new tab
 765     int verticalOffset = (- GetTopMargin()) - ((layer+1)*GetTabHeight());
 766     // Offset from view top-left
 767     int horizontalOffset = 0;
 768     if (!lastTab)
 769       horizontalOffset = layer*GetHorizontalTabOffset();
 770     else
 771       horizontalOffset = lastTab->GetX() + GetTabWidth() + GetHorizontalTabSpacing();
 772
 773     tabControl->SetPosition(horizontalOffset, verticalOffset);
 774     tabControl->SetSize(GetTabWidth(), GetTabHeight());
 775
 776     currentLayer->Append(tabControl);
 777     lastTab = tabControl;
 778
 779     node = node->Next();
 780   }
 781
 782   // Move the selected tab to the bottom
 783   wxTabControl *control = FindTabControlForId(m_tabSelection);
 784   if (control)
 785     MoveSelectionTab(control);
 786
 787 }
 788
 789 // Draw all tabs
 790 void wxTabView::Draw(wxDC& dc)
 791 {
 792         // Don't draw anything if there are no tabs.
 793         if (GetNumberOfTabs() == 0)
 794           return;
 795
 796     // Draw top margin area (beneath tabs and above view area)
 797     if (GetTabStyle() & wxTAB_STYLE_COLOUR_INTERIOR)
 798     {
 799         dc.SetPen(*wxTRANSPARENT_PEN);
 800         dc.SetBrush(*GetBackgroundBrush());
 801
 802         // Add 1 because the pen is transparent. Under Motif, may be different.
 803         dc.DrawRectangle(
 804                 m_tabViewRect.x,
 805                 (m_tabViewRect.y - m_topMargin),
 806                 (m_tabViewRect.width + 1),
 807                 (m_topMargin + 1)
 808                 );
 809     }
 810
 811     // Draw layers in reverse order
 812     wxNode *node = m_layers.Last();
 813     while (node)
 814     {
 815         wxTabLayer *layer = (wxTabLayer *)node->Data();
 816         wxNode *node2 = layer->First();
 817         while (node2)
 818         {
 819             wxTabControl *control = (wxTabControl *)node2->Data();
 820             control->OnDraw(dc, (node2->Next() == NULL));
 821             node2 = node2->Next();
 822         }
 823
 824         node = node->Previous();
 825     }
 826
 827
 828 #ifndef wxUSE_NEW_METHOD
 829     if (GetTabStyle() & wxTAB_STYLE_DRAW_BOX)
 830     {
 831         dc.SetPen(* GetShadowPen());
 832
 833         // Draw bottom line
 834         dc.DrawLine(
 835                 (GetViewRect().x + 1),
 836                 (GetViewRect().y + GetViewRect().height),
 837                 (GetViewRect().x + GetViewRect().width + 1),
 838                 (GetViewRect().y + GetViewRect().height)
 839                 );
 840
 841         // Draw right line
 842         dc.DrawLine(
 843                 (GetViewRect().x + GetViewRect().width),
 844                 (GetViewRect().y - GetTopMargin() + 1),
 845                 (GetViewRect().x + GetViewRect().width),
 846                 (GetViewRect().y + GetViewRect().height)
 847                 );
 848
 849         dc.SetPen(* wxBLACK_PEN);
 850
 851         // Draw bottom line
 852         dc.DrawLine(
 853                 (GetViewRect().x),
 854                 (GetViewRect().y + GetViewRect().height + 1),
 855 #if defined(__WXMOTIF__)
 856                 (GetViewRect().x + GetViewRect().width + 1),
 857 #else
 858                 (GetViewRect().x + GetViewRect().width + 2),
 859 #endif
 860
 861                 (GetViewRect().y + GetViewRect().height + 1)
 862                 );
 863
 864         // Draw right line
 865         dc.DrawLine(
 866                 (GetViewRect().x + GetViewRect().width + 1),
 867                 (GetViewRect().y - GetTopMargin()),
 868                 (GetViewRect().x + GetViewRect().width + 1),
 869                 (GetViewRect().y + GetViewRect().height + 1)
 870                 );
 871     }
 872 #endif
 873 }
 874
 875 // Process mouse event, return FALSE if we didn't process it
 876 bool wxTabView::OnEvent(wxMouseEvent& event)
 877 {
 878   if (!event.LeftDown())
 879     return FALSE;
 880
 881   wxCoord x, y;
 882   event.GetPosition(&x, &y);
 883
 884   wxTabControl *hitControl = (wxTabControl *) NULL;
 885
 886   wxNode *node = m_layers.First();
 887   while (node)
 888   {
 889     wxTabLayer *layer = (wxTabLayer *)node->Data();
 890     wxNode *node2 = layer->First();
 891     while (node2)
 892     {
 893       wxTabControl *control = (wxTabControl *)node2->Data();
 894       if (control->HitTest((int)x, (int)y))
 895       {
 896         hitControl = control;
 897         node = (wxNode *) NULL;
 898         node2 = (wxNode *) NULL;
 899       }
 900       else
 901         node2 = node2->Next();
 902     }
 903
 904     if (node)
 905       node = node->Next();
 906   }
 907
 908   if (!hitControl)
 909     return FALSE;
 910
 911   wxTabControl *currentTab = FindTabControlForId(m_tabSelection);
 912
 913   if (hitControl == currentTab)
 914     return FALSE;
 915
 916   ChangeTab(hitControl);
 917
 918   return TRUE;
 919 }
 920
 921 bool wxTabView::ChangeTab(wxTabControl *control)
 922 {
 923   wxTabControl *currentTab = FindTabControlForId(m_tabSelection);
 924   int oldTab = -1;
 925   if (currentTab)
 926     oldTab = currentTab->GetId();
 927
 928   if (control == currentTab)
 929     return TRUE;
 930
 931   if (m_layers.Number() == 0)
 932     return FALSE;
 933
 934   if (!OnTabPreActivate(control->GetId(), oldTab))
 935     return FALSE;
 936
 937   // Move the tab to the bottom
 938   MoveSelectionTab(control);
 939
 940   if (currentTab)
 941     currentTab->SetSelected(FALSE);
 942
 943   control->SetSelected(TRUE);
 944   m_tabSelection = control->GetId();
 945
 946   OnTabActivate(control->GetId(), oldTab);
 947
 948   // Leave window refresh for the implementing window
 949
 950   return TRUE;
 951 }
 952
 953 // Move the selected tab to the bottom layer, if necessary,
 954 // without calling app activation code
 955 bool wxTabView::MoveSelectionTab(wxTabControl *control)
 956 {
 957   if (m_layers.Number() == 0)
 958     return FALSE;
 959
 960   wxTabLayer *firstLayer = (wxTabLayer *)m_layers.First()->Data();
 961
 962   // Find what column this tab is at, so we can swap with the one at the bottom.
 963   // If we're on the bottom layer, then no need to swap.
 964   if (!firstLayer->Member(control))
 965   {
 966     // Do a swap
 967     int col = 0;
 968     wxNode *thisNode = FindTabNodeAndColumn(control, &col);
 969     if (!thisNode)
 970       return FALSE;
 971     wxNode *otherNode = firstLayer->Nth(col);
 972     if (!otherNode)
 973       return FALSE;
 974
 975     // If this is already in the bottom layer, return now
 976     if (otherNode == thisNode)
 977       return TRUE;
 978
 979     wxTabControl *otherTab = (wxTabControl *)otherNode->Data();
 980
 981     // We now have pointers to the tab to be changed to,
 982     // and the tab on the first layer. Swap tab structures and
 983     // position details.
 984
 985     int thisX = control->GetX();
 986     int thisY = control->GetY();
 987     int thisColPos = control->GetColPosition();
 988     int otherX = otherTab->GetX();
 989     int otherY = otherTab->GetY();
 990     int otherColPos = otherTab->GetColPosition();
 991
 992     control->SetPosition(otherX, otherY);
 993     control->SetColPosition(otherColPos);
 994     otherTab->SetPosition(thisX, thisY);
 995     otherTab->SetColPosition(thisColPos);
 996
 997     // Swap the data for the nodes
 998     thisNode->SetData(otherTab);
 999     otherNode->SetData(control);
1000   }
1001   return TRUE;
1002 }
1003
1004 // Called when a tab is activated
1005 void wxTabView::OnTabActivate(int /*activateId*/, int /*deactivateId*/)
1006 {
1007 }
1008
1009 void wxTabView::SetHighlightColour(const wxColour& col)
1010 {
1011   m_highlightColour = col;
1012   m_highlightPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
1013 }
1014
1015 void wxTabView::SetShadowColour(const wxColour& col)
1016 {
1017   m_shadowColour = col;
1018   m_shadowPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
1019 }
1020
1021 void wxTabView::SetBackgroundColour(const wxColour& col)
1022 {
1023   m_backgroundColour = col;
1024   m_backgroundPen = wxThePenList->FindOrCreatePen(col, 1, wxSOLID);
1025   m_backgroundBrush = wxTheBrushList->FindOrCreateBrush(col, wxSOLID);
1026 }
1027
1028 void wxTabView::SetTabSelection(int sel, bool activateTool)
1029 {
1030   if ( sel==m_tabSelection )
1031     return;
1032
1033   int oldSel = m_tabSelection;
1034   wxTabControl *control = FindTabControlForId(sel);
1035   wxTabControl *oldControl = FindTabControlForId(m_tabSelection);
1036
1037   if (!OnTabPreActivate(sel, oldSel))
1038     return;
1039
1040   if (control)
1041     control->SetSelected((sel != -1)); // TODO ??
1042   else if (sel != -1)
1043   {
1044     wxFAIL_MSG(_("Could not find tab for id"));
1045     return;
1046   }
1047
1048   if (oldControl)
1049     oldControl->SetSelected(FALSE);
1050
1051   m_tabSelection = sel;
1052
1053   if (control)
1054     MoveSelectionTab(control);
1055
1056   if (activateTool)
1057     OnTabActivate(sel, oldSel);
1058 }
1059
1060 // Find tab control for id
1061 wxTabControl *wxTabView::FindTabControlForId(int id) const
1062 {
1063   wxNode *node1 = m_layers.First();
1064   while (node1)
1065   {
1066     wxTabLayer *layer = (wxTabLayer *)node1->Data();
1067     wxNode *node2 = layer->First();
1068     while (node2)
1069     {
1070       wxTabControl *control = (wxTabControl *)node2->Data();
1071       if (control->GetId() == id)
1072         return control;
1073       node2 = node2->Next();
1074     }
1075     node1 = node1->Next();
1076   }
1077   return (wxTabControl *) NULL;
1078 }
1079
1080 // Find tab control for layer, position (starting from zero)
1081 wxTabControl *wxTabView::FindTabControlForPosition(int layer, int position) const
1082 {
1083   wxNode *node1 = m_layers.Nth(layer);
1084   if (!node1)
1085     return (wxTabControl *) NULL;
1086   wxTabLayer *tabLayer = (wxTabLayer *)node1->Data();
1087   wxNode *node2 = tabLayer->Nth(position);
1088   if (!node2)
1089     return (wxTabControl *) NULL;
1090   return (wxTabControl *)node2->Data();
1091 }
1092
1093 // Find the node and the column at which this control is positioned.
1094 wxNode *wxTabView::FindTabNodeAndColumn(wxTabControl *control, int *col) const
1095 {
1096   wxNode *node1 = m_layers.First();
1097   while (node1)
1098   {
1099     wxTabLayer *layer = (wxTabLayer *)node1->Data();
1100     int c = 0;
1101     wxNode *node2 = layer->First();
1102     while (node2)
1103     {
1104       wxTabControl *cnt = (wxTabControl *)node2->Data();
1105       if (cnt == control)
1106       {
1107         *col = c;
1108         return node2;
1109       }
1110       node2 = node2->Next();
1111       c ++;
1112     }
1113     node1 = node1->Next();
1114   }
1115   return (wxNode *) NULL;
1116 }
1117
1118 int wxTabView::CalculateTabWidth(int noTabs, bool adjustView)
1119 {
1120   m_tabWidth = (int)((m_tabViewRect.width - ((noTabs - 1)*GetHorizontalTabSpacing()))/noTabs);
1121   if (adjustView)
1122   {
1123     m_tabViewRect.width = noTabs*m_tabWidth + ((noTabs-1)*GetHorizontalTabSpacing());
1124   }
1125   return m_tabWidth;
1126 }
1127
1128 /*
1129  * wxTabbedDialog
1130  */
1131
1132 IMPLEMENT_CLASS(wxTabbedDialog, wxDialog)
1133
1134 BEGIN_EVENT_TABLE(wxTabbedDialog, wxDialog)
1135     EVT_CLOSE(wxTabbedDialog::OnCloseWindow)
1136     EVT_MOUSE_EVENTS(wxTabbedDialog::OnMouseEvent)
1137     EVT_PAINT(wxTabbedDialog::OnPaint)
1138 END_EVENT_TABLE()
1139
1140 wxTabbedDialog::wxTabbedDialog(wxWindow *parent, wxWindowID id,
1141     const wxString& title,
1142     const wxPoint& pos, const wxSize& size,
1143     long windowStyle, const wxString& name):
1144    wxDialog(parent, id, title, pos, size, windowStyle, name)
1145 {
1146   m_tabView = (wxTabView *) NULL;
1147 }
1148
1149 wxTabbedDialog::~wxTabbedDialog(void)
1150 {
1151   if (m_tabView)
1152     delete m_tabView;
1153 }
1154
1155 void wxTabbedDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event) )
1156 {
1157   Destroy();
1158 }
1159
1160 void wxTabbedDialog::OnMouseEvent(wxMouseEvent& event )
1161 {
1162   if (m_tabView)
1163     m_tabView->OnEvent(event);
1164 }
1165
1166 void wxTabbedDialog::OnPaint(wxPaintEvent& WXUNUSED(event) )
1167 {
1168     wxPaintDC dc(this);
1169     if (m_tabView)
1170         m_tabView->Draw(dc);
1171 }
1172
1173 /*
1174  * wxTabbedPanel
1175  */
1176
1177 IMPLEMENT_CLASS(wxTabbedPanel, wxPanel)
1178
1179 BEGIN_EVENT_TABLE(wxTabbedPanel, wxPanel)
1180     EVT_MOUSE_EVENTS(wxTabbedPanel::OnMouseEvent)
1181     EVT_PAINT(wxTabbedPanel::OnPaint)
1182 END_EVENT_TABLE()
1183
1184 wxTabbedPanel::wxTabbedPanel(wxWindow *parent, wxWindowID id, const wxPoint& pos,
1185    const wxSize& size, long windowStyle, const wxString& name):
1186    wxPanel(parent, id, pos, size, windowStyle, name)
1187 {
1188   m_tabView = (wxTabView *) NULL;
1189 }
1190
1191 wxTabbedPanel::~wxTabbedPanel(void)
1192 {
1193   delete m_tabView;
1194 }
1195
1196 void wxTabbedPanel::OnMouseEvent(wxMouseEvent& event)
1197 {
1198   if (m_tabView)
1199     m_tabView->OnEvent(event);
1200 }
1201
1202 void wxTabbedPanel::OnPaint(wxPaintEvent& WXUNUSED(event) )
1203 {
1204     wxPaintDC dc(this);
1205     if (m_tabView)
1206         m_tabView->Draw(dc);
1207 }
1208
1209 /*
1210  * wxPanelTabView
1211  */
1212
1213 IMPLEMENT_CLASS(wxPanelTabView, wxTabView)
1214
1215 wxPanelTabView::wxPanelTabView(wxPanel *pan, long style): wxTabView(style), m_tabWindows(wxKEY_INTEGER)
1216 {
1217   m_panel = pan;
1218   m_currentWindow = (wxWindow *) NULL;
1219
1220   if (m_panel->IsKindOf(CLASSINFO(wxTabbedDialog)))
1221     ((wxTabbedDialog *)m_panel)->SetTabView(this);
1222   else if (m_panel->IsKindOf(CLASSINFO(wxTabbedPanel)))
1223     ((wxTabbedPanel *)m_panel)->SetTabView(this);
1224
1225   SetWindow(m_panel);
1226 }
1227
1228 wxPanelTabView::~wxPanelTabView(void)
1229 {
1230   ClearWindows(TRUE);
1231 }
1232
1233 // Called when a tab is activated
1234 void wxPanelTabView::OnTabActivate(int activateId, int deactivateId)
1235 {
1236   if (!m_panel)
1237     return;
1238
1239   wxWindow *oldWindow = ((deactivateId == -1) ? 0 : GetTabWindow(deactivateId));
1240   wxWindow *newWindow = GetTabWindow(activateId);
1241
1242   if (oldWindow)
1243     oldWindow->Show(FALSE);
1244   if (newWindow)
1245     newWindow->Show(TRUE);
1246
1247   m_panel->Refresh();
1248 }
1249
1250
1251 void wxPanelTabView::AddTabWindow(int id, wxWindow *window)
1252 {
1253   m_tabWindows.Append((long)id, window);
1254   window->Show(FALSE);
1255 }
1256
1257 wxWindow *wxPanelTabView::GetTabWindow(int id) const
1258 {
1259   wxNode *node = m_tabWindows.Find((long)id);
1260   if (!node)
1261     return (wxWindow *) NULL;
1262   return (wxWindow *)node->Data();
1263 }
1264
1265 void wxPanelTabView::ClearWindows(bool deleteWindows)
1266 {
1267   if (deleteWindows)
1268     m_tabWindows.DeleteContents(TRUE);
1269   m_tabWindows.Clear();
1270   m_tabWindows.DeleteContents(FALSE);
1271 }
1272
1273 void wxPanelTabView::ShowWindowForTab(int id)
1274 {
1275   wxWindow *newWindow = GetTabWindow(id);
1276   if (newWindow == m_currentWindow)
1277     return;
1278   if (m_currentWindow)
1279     m_currentWindow->Show(FALSE);
1280   newWindow->Show(TRUE);
1281   newWindow->Refresh();
1282 }
1283
1284 #endif // wxUSE_TAB_DIALOG