samples/widgets/odcombobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        odcombobox.cpp
   4 // Purpose:     Part of the widgets sample showing wxOwnerDrawnComboBox
   5 // Author:      Jaakko Salli (based on combobox page by Vadim Zeitlin)
   6 // Created:     Jul-28-2006
   7 // Id:          $Id$
   8 // Copyright:   (c) 2006 Jaakko Salli
   9 // License:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_ODCOMBOBOX
  28
  29 // for all others, include the necessary headers
  30 #ifndef WX_PRECOMP
  31     #include "wx/log.h"
  32
  33     #include "wx/bitmap.h"
  34     #include "wx/button.h"
  35     #include "wx/checkbox.h"
  36     #include "wx/combobox.h"
  37     #include "wx/radiobox.h"
  38     #include "wx/statbox.h"
  39     #include "wx/textctrl.h"
  40 #endif
  41
  42 #include "wx/dc.h"
  43 #include "wx/dcmemory.h"
  44 #include "wx/sizer.h"
  45 #include "wx/odcombo.h"
  46
  47
  48 #include "widgets.h"
  49
  50 #include "icons/odcombobox.xpm"
  51
  52 // ----------------------------------------------------------------------------
  53 // constants
  54 // ----------------------------------------------------------------------------
  55
  56 // control ids
  57 enum
  58 {
  59     ODComboPage_Reset = wxID_HIGHEST,
  60     ODComboPage_PopupMinWidth,
  61     ODComboPage_PopupHeight,
  62     ODComboPage_ButtonWidth,
  63     ODComboPage_ButtonHeight,
  64     ODComboPage_ButtonSpacing,
  65     ODComboPage_CurText,
  66     ODComboPage_InsertionPointText,
  67     ODComboPage_Insert,
  68     ODComboPage_InsertText,
  69     ODComboPage_Add,
  70     ODComboPage_AddText,
  71     ODComboPage_AddSeveral,
  72     ODComboPage_AddMany,
  73     ODComboPage_Clear,
  74     ODComboPage_Change,
  75     ODComboPage_ChangeText,
  76     ODComboPage_Delete,
  77     ODComboPage_DeleteText,
  78     ODComboPage_DeleteSel,
  79     ODComboPage_Combo
  80 };
  81
  82
  83 // ----------------------------------------------------------------------------
  84 // ODComboboxWidgetsPage
  85 // ----------------------------------------------------------------------------
  86
  87 class ODComboboxWidgetsPage : public WidgetsPage
  88 {
  89 public:
  90     ODComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  91
  92     virtual wxControl *GetWidget() const { return m_combobox; }
  93     virtual void RecreateWidget() { CreateCombo(); }
  94
  95     // lazy creation of the content
  96     virtual void CreateContent();
  97
  98 protected:
  99     // event handlers
 100     void OnButtonReset(wxCommandEvent& event);
 101     void OnButtonChange(wxCommandEvent& event);
 102     void OnButtonDelete(wxCommandEvent& event);
 103     void OnButtonDeleteSel(wxCommandEvent& event);
 104     void OnButtonClear(wxCommandEvent& event);
 105     void OnButtonInsert(wxCommandEvent &event);
 106     void OnButtonAdd(wxCommandEvent& event);
 107     void OnButtonAddSeveral(wxCommandEvent& event);
 108     void OnButtonAddMany(wxCommandEvent& event);
 109
 110     void OnComboBox(wxCommandEvent& event);
 111     void OnComboText(wxCommandEvent& event);
 112
 113     void OnCheckOrRadioBox(wxCommandEvent& event);
 114
 115     void OnTextPopupWidth(wxCommandEvent& event);
 116     void OnTextPopupHeight(wxCommandEvent& event);
 117     void OnTextButtonAll(wxCommandEvent& event);
 118
 119     void OnUpdateUICurText(wxUpdateUIEvent& event);
 120     void OnUpdateUIInsertionPointText(wxUpdateUIEvent& event);
 121
 122     void OnUpdateUIInsert(wxUpdateUIEvent& event);
 123     void OnUpdateUIAddSeveral(wxUpdateUIEvent& event);
 124     void OnUpdateUIClearButton(wxUpdateUIEvent& event);
 125     void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
 126     void OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event);
 127     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 128
 129     // reset the odcombobox parameters
 130     void Reset();
 131
 132     // (re)create the odcombobox
 133     void CreateCombo();
 134
 135     // helper that gets all button values from controls and calls SetButtonPosition
 136     void GetButtonPosition();
 137
 138     // helper to create the button bitmap
 139     wxBitmap CreateBitmap(const wxColour& colour);
 140
 141     // the controls
 142     // ------------
 143
 144     // the checkboxes for styles
 145     wxCheckBox *m_chkSort,
 146                *m_chkReadonly,
 147                *m_chkDclickcycles,
 148                *m_chkBitmapbutton,
 149                *m_chkStdbutton;
 150
 151     // the text entries for popup and button adjustment
 152     wxTextCtrl *m_textPopupMinWidth,
 153                *m_textPopupHeight,
 154                *m_textButtonWidth,
 155                *m_textButtonHeight,
 156                *m_textButtonSpacing;
 157
 158     // the checkboxes for same
 159     wxCheckBox *m_chkAlignpopupright,
 160                *m_chkAlignbutleft;
 161
 162     // the combobox itself and the sizer it is in
 163     wxOwnerDrawnComboBox *m_combobox;
 164     wxSizer *m_sizerCombo;
 165
 166     // the text entries for "Add/change string" and "Delete" buttons
 167     wxTextCtrl *m_textInsert,
 168                *m_textAdd,
 169                *m_textChange,
 170                *m_textDelete;
 171
 172 private:
 173     DECLARE_EVENT_TABLE()
 174     DECLARE_WIDGETS_PAGE(ODComboboxWidgetsPage)
 175 };
 176
 177 // ----------------------------------------------------------------------------
 178 // event tables
 179 // ----------------------------------------------------------------------------
 180
 181 BEGIN_EVENT_TABLE(ODComboboxWidgetsPage, WidgetsPage)
 182     EVT_BUTTON(ODComboPage_Reset, ODComboboxWidgetsPage::OnButtonReset)
 183     EVT_BUTTON(ODComboPage_Change, ODComboboxWidgetsPage::OnButtonChange)
 184     EVT_BUTTON(ODComboPage_Delete, ODComboboxWidgetsPage::OnButtonDelete)
 185     EVT_BUTTON(ODComboPage_DeleteSel, ODComboboxWidgetsPage::OnButtonDeleteSel)
 186     EVT_BUTTON(ODComboPage_Clear, ODComboboxWidgetsPage::OnButtonClear)
 187     EVT_BUTTON(ODComboPage_Insert, ODComboboxWidgetsPage::OnButtonInsert)
 188     EVT_BUTTON(ODComboPage_Add, ODComboboxWidgetsPage::OnButtonAdd)
 189     EVT_BUTTON(ODComboPage_AddSeveral, ODComboboxWidgetsPage::OnButtonAddSeveral)
 190     EVT_BUTTON(ODComboPage_AddMany, ODComboboxWidgetsPage::OnButtonAddMany)
 191
 192     EVT_TEXT_ENTER(ODComboPage_InsertText, ODComboboxWidgetsPage::OnButtonInsert)
 193     EVT_TEXT_ENTER(ODComboPage_AddText, ODComboboxWidgetsPage::OnButtonAdd)
 194     EVT_TEXT_ENTER(ODComboPage_DeleteText, ODComboboxWidgetsPage::OnButtonDelete)
 195
 196     EVT_TEXT(ODComboPage_PopupMinWidth, ODComboboxWidgetsPage::OnTextPopupWidth)
 197     EVT_TEXT(ODComboPage_PopupHeight, ODComboboxWidgetsPage::OnTextPopupHeight)
 198     EVT_TEXT(ODComboPage_ButtonWidth, ODComboboxWidgetsPage::OnTextButtonAll)
 199     EVT_TEXT(ODComboPage_ButtonHeight, ODComboboxWidgetsPage::OnTextButtonAll)
 200     EVT_TEXT(ODComboPage_ButtonSpacing, ODComboboxWidgetsPage::OnTextButtonAll)
 201
 202     EVT_UPDATE_UI(ODComboPage_CurText, ODComboboxWidgetsPage::OnUpdateUICurText)
 203     EVT_UPDATE_UI(ODComboPage_InsertionPointText, ODComboboxWidgetsPage::OnUpdateUIInsertionPointText)
 204
 205     EVT_UPDATE_UI(ODComboPage_Reset, ODComboboxWidgetsPage::OnUpdateUIResetButton)
 206     EVT_UPDATE_UI(ODComboPage_Insert, ODComboboxWidgetsPage::OnUpdateUIInsert)
 207     EVT_UPDATE_UI(ODComboPage_AddSeveral, ODComboboxWidgetsPage::OnUpdateUIAddSeveral)
 208     EVT_UPDATE_UI(ODComboPage_Clear, ODComboboxWidgetsPage::OnUpdateUIClearButton)
 209     EVT_UPDATE_UI(ODComboPage_DeleteText, ODComboboxWidgetsPage::OnUpdateUIClearButton)
 210     EVT_UPDATE_UI(ODComboPage_Delete, ODComboboxWidgetsPage::OnUpdateUIDeleteButton)
 211     EVT_UPDATE_UI(ODComboPage_Change, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 212     EVT_UPDATE_UI(ODComboPage_ChangeText, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 213     EVT_UPDATE_UI(ODComboPage_DeleteSel, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 214
 215     EVT_COMBOBOX(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboBox)
 216     EVT_TEXT(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboText)
 217     EVT_TEXT_ENTER(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboText)
 218
 219     EVT_CHECKBOX(wxID_ANY, ODComboboxWidgetsPage::OnCheckOrRadioBox)
 220     EVT_RADIOBOX(wxID_ANY, ODComboboxWidgetsPage::OnCheckOrRadioBox)
 221 END_EVENT_TABLE()
 222
 223 // ============================================================================
 224 // implementation
 225 // ============================================================================
 226
 227 //
 228 // wxOwnerDrawnComboBox needs to subclassed so that owner-drawing
 229 // callbacks can be implemented.
 230 class DemoODComboBox : public wxOwnerDrawnComboBox
 231 {
 232 public:
 233     virtual void OnDrawItem(wxDC& dc,
 234                             const wxRect& rect,
 235                             int item,
 236                             int WXUNUSED(flags)) const
 237     {
 238         if ( item == wxNOT_FOUND )
 239             return;
 240
 241         wxColour txtCol;
 242         int mod = item % 4;
 243
 244         if ( mod == 0 )
 245             txtCol = *wxBLACK;
 246         else if ( mod == 1 )
 247             txtCol = *wxRED;
 248         else if ( mod == 2 )
 249             txtCol = *wxGREEN;
 250         else
 251             txtCol = *wxBLUE;
 252
 253         dc.SetTextForeground(txtCol);
 254
 255         dc.DrawText(GetString(item),
 256                     rect.x + 3,
 257                     rect.y + ((rect.height - dc.GetCharHeight())/2)
 258                    );
 259     }
 260
 261     virtual void OnDrawBackground(wxDC& dc, const wxRect& rect,
 262                                   int item, int flags ) const
 263     {
 264
 265         // If item is selected or even, or we are painting the
 266         // combo control itself, use the default rendering.
 267         if ( (flags & (wxODCB_PAINTING_CONTROL|wxODCB_PAINTING_SELECTED)) ||
 268              (item & 1) == 0 )
 269         {
 270             wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
 271             return;
 272         }
 273
 274         // Otherwise, draw every other background with different colour.
 275         wxColour bgCol(240,240,250);
 276         dc.SetBrush(wxBrush(bgCol));
 277         dc.SetPen(wxPen(bgCol));
 278         dc.DrawRectangle(rect);
 279     }
 280
 281     virtual wxCoord OnMeasureItem(size_t WXUNUSED(item)) const
 282     {
 283         return 48;
 284     }
 285
 286     virtual wxCoord OnMeasureItemWidth(size_t WXUNUSED(item)) const
 287     {
 288         return -1; // default - will be measured from text width
 289     }
 290 };
 291
 292
 293 IMPLEMENT_WIDGETS_PAGE(ODComboboxWidgetsPage, _T("OwnerDrawnCombobox"),
 294                        GENERIC_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
 295                        );
 296
 297 ODComboboxWidgetsPage::ODComboboxWidgetsPage(WidgetsBookCtrl *book,
 298                                              wxImageList *imaglist)
 299                   : WidgetsPage(book, imaglist, odcombobox_xpm)
 300 {
 301     // init everything
 302     m_chkSort =
 303     m_chkReadonly =
 304     m_chkDclickcycles = (wxCheckBox *)NULL;
 305
 306     m_combobox = (wxOwnerDrawnComboBox *)NULL;
 307     m_sizerCombo = (wxSizer *)NULL;
 308 }
 309
 310 void ODComboboxWidgetsPage::CreateContent()
 311 {
 312     /*
 313        What we create here is a frame having 3 panes: style pane is the
 314        leftmost one, in the middle the pane with buttons allowing to perform
 315        miscellaneous combobox operations and the pane containing the combobox
 316        itself to the right
 317     */
 318     wxTextCtrl *text;
 319     wxSizer *sizerRow;
 320
 321     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 322
 323     wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
 324
 325     // left pane - style box
 326     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 327
 328     wxSizer *sizerStyle = new wxStaticBoxSizer(box, wxVERTICAL);
 329
 330     m_chkSort = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Sort items"));
 331     m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Read only"));
 332     m_chkDclickcycles = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Double-click Cycles"));
 333
 334     sizerStyle->AddSpacer(4);
 335
 336     m_chkBitmapbutton = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Bitmap button"));
 337     m_chkStdbutton = CreateCheckBoxAndAddToSizer(sizerStyle, _T("B&lank button background"));
 338
 339     wxButton *btn = new wxButton(this, ODComboPage_Reset, _T("&Reset"));
 340     sizerStyle->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 3);
 341
 342     sizerLeft->Add(sizerStyle, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL);
 343
 344     // left pane - popup adjustment box
 345     box = new wxStaticBox(this, wxID_ANY, _T("Adjust &popup"));
 346
 347     wxSizer *sizerPopupPos = new wxStaticBoxSizer(box, wxVERTICAL);
 348
 349     sizerRow = CreateSizerWithTextAndLabel(_T("Min. Width:"),
 350                                            ODComboPage_PopupMinWidth,
 351                                            &m_textPopupMinWidth);
 352     m_textPopupMinWidth->SetValue(wxT("-1"));
 353     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 354
 355     sizerRow = CreateSizerWithTextAndLabel(_T("Max. Height:"),
 356                                            ODComboPage_PopupHeight,
 357                                            &m_textPopupHeight);
 358     m_textPopupHeight->SetValue(wxT("-1"));
 359     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 360
 361     m_chkAlignpopupright = CreateCheckBoxAndAddToSizer(sizerPopupPos, _T("Align Right"));
 362
 363     sizerLeft->Add(sizerPopupPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 364
 365     // left pane - button adjustment box
 366     box = new wxStaticBox(this, wxID_ANY, _T("Adjust &button"));
 367
 368     wxSizer *sizerButtonPos = new wxStaticBoxSizer(box, wxVERTICAL);
 369
 370     sizerRow = CreateSizerWithTextAndLabel(_T("Width:"),
 371                                            ODComboPage_ButtonWidth,
 372                                            &m_textButtonWidth);
 373     m_textButtonWidth->SetValue(wxT("-1"));
 374     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 375
 376     sizerRow = CreateSizerWithTextAndLabel(_T("VSpacing:"),
 377                                            ODComboPage_ButtonSpacing,
 378                                            &m_textButtonSpacing);
 379     m_textButtonSpacing->SetValue(wxT("0"));
 380     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 381
 382     sizerRow = CreateSizerWithTextAndLabel(_T("Height:"),
 383                                            ODComboPage_ButtonHeight,
 384                                            &m_textButtonHeight);
 385     m_textButtonHeight->SetValue(wxT("-1"));
 386     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 387
 388     m_chkAlignbutleft = CreateCheckBoxAndAddToSizer(sizerButtonPos, _T("Align Left"));
 389
 390     sizerLeft->Add(sizerButtonPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 391
 392     // middle pane
 393     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
 394         _T("&Change combobox contents"));
 395     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 396
 397     sizerRow = CreateSizerWithTextAndLabel(_T("Current selection"),
 398                                            ODComboPage_CurText,
 399                                            &text);
 400     text->SetEditable(false);
 401
 402     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 403
 404     sizerRow = CreateSizerWithTextAndLabel(_T("Insertion Point"),
 405                                            ODComboPage_InsertionPointText,
 406                                            &text);
 407     text->SetEditable(false);
 408
 409     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 410
 411     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Insert,
 412                                             _T("&Insert this string"),
 413                                             ODComboPage_InsertText,
 414                                             &m_textInsert);
 415     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 416
 417     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Add,
 418                                             _T("&Add this string"),
 419                                             ODComboPage_AddText,
 420                                             &m_textAdd);
 421     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 422
 423     btn = new wxButton(this, ODComboPage_AddSeveral, _T("&Append a few strings"));
 424     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 425
 426     btn = new wxButton(this, ODComboPage_AddMany, _T("Append &many strings"));
 427     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 428
 429     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Change,
 430                                             _T("C&hange current"),
 431                                             ODComboPage_ChangeText,
 432                                             &m_textChange);
 433     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 434
 435     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Delete,
 436                                             _T("&Delete this item"),
 437                                             ODComboPage_DeleteText,
 438                                             &m_textDelete);
 439     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 440
 441     btn = new wxButton(this, ODComboPage_DeleteSel, _T("Delete &selection"));
 442     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 443
 444     btn = new wxButton(this, ODComboPage_Clear, _T("&Clear"));
 445     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 446
 447     // right pane
 448     wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
 449     m_combobox = new DemoODComboBox();
 450     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 451                        wxDefaultPosition, wxDefaultSize,
 452                        0, NULL,
 453                        0);
 454     sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
 455     sizerRight->SetMinSize(150, 0);
 456     m_sizerCombo = sizerRight; // save it to modify it later
 457
 458     // the 3 panes panes compose the window
 459     sizerTop->Add(sizerLeft, 4, wxGROW | (wxALL & ~wxLEFT), 10);
 460     sizerTop->Add(sizerMiddle, 5, wxGROW | wxALL, 10);
 461     sizerTop->Add(sizerRight, 4, wxGROW | (wxALL & ~wxRIGHT), 10);
 462
 463     // final initializations
 464     Reset();
 465
 466     SetSizer(sizerTop);
 467
 468     sizerTop->Fit(this);
 469 }
 470
 471 // ----------------------------------------------------------------------------
 472 // operations
 473 // ----------------------------------------------------------------------------
 474
 475 void ODComboboxWidgetsPage::Reset()
 476 {
 477     m_chkSort->SetValue(false);
 478     m_chkReadonly->SetValue(false);
 479     m_chkDclickcycles->SetValue(false);
 480     m_chkDclickcycles->Enable(false);
 481     m_chkBitmapbutton->SetValue(false);
 482     m_chkStdbutton->SetValue(false);
 483     m_chkStdbutton->Enable(false);
 484 }
 485
 486 void ODComboboxWidgetsPage::CreateCombo()
 487 {
 488     int flags = ms_defaultFlags;
 489
 490     if ( m_chkSort->GetValue() )
 491         flags |= wxCB_SORT;
 492     if ( m_chkReadonly->GetValue() )
 493         flags |= wxCB_READONLY;
 494     if ( m_chkDclickcycles->GetValue() )
 495         flags |= wxODCB_DCLICK_CYCLES;
 496
 497     wxArrayString items;
 498     if ( m_combobox )
 499     {
 500         unsigned int count = m_combobox->GetCount();
 501         for ( unsigned int n = 0; n < count; n++ )
 502         {
 503             items.Add(m_combobox->GetString(n));
 504         }
 505
 506         m_sizerCombo->Detach( m_combobox );
 507         delete m_combobox;
 508     }
 509
 510     m_combobox = new DemoODComboBox();
 511     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 512                        wxDefaultPosition, wxDefaultSize,
 513                        0, NULL,
 514                        flags);
 515
 516     unsigned int count = items.GetCount();
 517     for ( unsigned int n = 0; n < count; n++ )
 518     {
 519         m_combobox->Append(items[n]);
 520     }
 521
 522     // Update from controls that edit popup position etc.
 523
 524     wxUpdateUIEvent tempEvt;
 525     OnTextPopupWidth(tempEvt);
 526     OnTextPopupHeight(tempEvt);
 527     GetButtonPosition();
 528
 529     m_combobox->SetPopupAnchor( m_chkAlignpopupright->GetValue() ? wxRIGHT : wxLEFT );
 530
 531     if ( m_chkBitmapbutton->GetValue() )
 532     {
 533         wxBitmap bmpNormal = CreateBitmap(wxColour(0,0,255));
 534         wxBitmap bmpPressed = CreateBitmap(wxColour(0,0,128));
 535         wxBitmap bmpHover = CreateBitmap(wxColour(128,128,255));
 536         m_combobox->SetButtonBitmaps(bmpNormal,m_chkStdbutton->GetValue(),bmpPressed,bmpHover);
 537     }
 538
 539     m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
 540     m_sizerCombo->Layout();
 541 }
 542
 543 // ----------------------------------------------------------------------------
 544 // event handlers
 545 // ----------------------------------------------------------------------------
 546
 547 void ODComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 548 {
 549     Reset();
 550
 551     CreateCombo();
 552 }
 553
 554 void ODComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
 555 {
 556     int sel = m_combobox->GetSelection();
 557     if ( sel != wxNOT_FOUND )
 558     {
 559 #ifndef __WXGTK__
 560         m_combobox->SetString(sel, m_textChange->GetValue());
 561 #else
 562         wxLogMessage(_T("Not implemented in wxGTK"));
 563 #endif
 564     }
 565 }
 566
 567 void ODComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
 568 {
 569     unsigned long n;
 570     if ( !m_textDelete->GetValue().ToULong(&n) ||
 571             (n >= m_combobox->GetCount()) )
 572     {
 573         return;
 574     }
 575
 576     m_combobox->Delete(n);
 577 }
 578
 579 void ODComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
 580 {
 581     int sel = m_combobox->GetSelection();
 582     if ( sel != wxNOT_FOUND )
 583     {
 584         m_combobox->Delete(sel);
 585     }
 586 }
 587
 588 void ODComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 589 {
 590     m_combobox->Clear();
 591 }
 592
 593 void ODComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 594 {
 595     static unsigned int s_item = 0;
 596
 597     wxString s = m_textInsert->GetValue();
 598     if ( !m_textInsert->IsModified() )
 599     {
 600         // update the default string
 601         m_textInsert->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 602     }
 603
 604     if (m_combobox->GetSelection() >= 0)
 605         m_combobox->Insert(s, m_combobox->GetSelection());
 606 }
 607
 608 void ODComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 609 {
 610     static unsigned int s_item = 0;
 611
 612     wxString s = m_textAdd->GetValue();
 613     if ( !m_textAdd->IsModified() )
 614     {
 615         // update the default string
 616         m_textAdd->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 617     }
 618
 619     m_combobox->Append(s);
 620 }
 621
 622 void ODComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
 623 {
 624     // "many" means 1000 here
 625     for ( unsigned int n = 0; n < 1000; n++ )
 626     {
 627         m_combobox->Append(wxString::Format(_T("item #%u"), n));
 628     }
 629 }
 630
 631 void ODComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
 632 {
 633     m_combobox->Append(_T("First"));
 634     m_combobox->Append(_T("another one"));
 635     m_combobox->Append(_T("and the last (very very very very very very very very very very long) one"));
 636 }
 637
 638 void ODComboboxWidgetsPage::OnTextPopupWidth(wxCommandEvent& WXUNUSED(event))
 639 {
 640     long l = 0;
 641
 642     m_textPopupMinWidth->GetValue().ToLong(&l);
 643
 644     if (m_combobox && l > 0)
 645     {
 646         m_combobox->SetPopupMinWidth(l);
 647     }
 648 }
 649
 650 void ODComboboxWidgetsPage::OnTextPopupHeight(wxCommandEvent& WXUNUSED(event))
 651 {
 652     long l = 0;
 653
 654     m_textPopupHeight->GetValue().ToLong(&l);
 655
 656     if (m_combobox && l > 0)
 657     {
 658         m_combobox->SetPopupMaxHeight(l);
 659     }
 660 }
 661
 662 void ODComboboxWidgetsPage::GetButtonPosition()
 663 {
 664     long w = -1;
 665     long h = -1;
 666     long spacing = 0;
 667
 668     m_textButtonWidth->GetValue().ToLong(&w);
 669     m_textButtonSpacing->GetValue().ToLong(&spacing);
 670     m_textButtonHeight->GetValue().ToLong(&h);
 671     int align = m_chkAlignbutleft->GetValue() ?
 672                 wxLEFT : wxRIGHT;
 673
 674     m_combobox->SetButtonPosition(w,h,align,spacing);
 675 }
 676
 677 void ODComboboxWidgetsPage::OnTextButtonAll(wxCommandEvent& WXUNUSED(event))
 678 {
 679     if (m_combobox)
 680     {
 681         if ( m_chkBitmapbutton->GetValue() )
 682             CreateCombo();
 683         else
 684             GetButtonPosition();
 685     }
 686 }
 687
 688 void ODComboboxWidgetsPage::OnUpdateUICurText(wxUpdateUIEvent& event)
 689 {
 690     if (m_combobox)
 691         event.SetText( wxString::Format(_T("%d"), m_combobox->GetSelection()) );
 692 }
 693
 694 void ODComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
 695 {
 696     if (m_combobox)
 697         event.SetText( wxString::Format(_T("%ld"), m_combobox->GetInsertionPoint()) );
 698 }
 699
 700 void ODComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 701 {
 702     if (m_combobox)
 703         event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() ||
 704                       m_chkBitmapbutton->GetValue() );
 705 }
 706
 707 void ODComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
 708 {
 709     if (m_combobox)
 710     {
 711         bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
 712                        (m_combobox->GetSelection() >= 0);
 713
 714         event.Enable(enable);
 715     }
 716 }
 717
 718 void ODComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
 719 {
 720     if (m_combobox)
 721     {
 722       unsigned long n;
 723       event.Enable(m_textDelete->GetValue().ToULong(&n) &&
 724         (n < (unsigned)m_combobox->GetCount()));
 725     }
 726 }
 727
 728 void ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
 729 {
 730     if (m_combobox)
 731         event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
 732 }
 733
 734 void ODComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 735 {
 736     if (m_combobox)
 737         event.Enable(m_combobox->GetCount() != 0);
 738 }
 739
 740 void ODComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
 741 {
 742     if (m_combobox)
 743         event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
 744 }
 745
 746 void ODComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
 747 {
 748     if (!m_combobox)
 749         return;
 750
 751     wxString s = event.GetString();
 752
 753     wxASSERT_MSG( s == m_combobox->GetValue(),
 754                   _T("event and combobox values should be the same") );
 755
 756     if (event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER)
 757         wxLogMessage(_T("OwnerDrawnCombobox enter pressed (now '%s')"), s.c_str());
 758     else
 759         wxLogMessage(_T("OwnerDrawnCombobox text changed (now '%s')"), s.c_str());
 760 }
 761
 762 void ODComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
 763 {
 764     long sel = event.GetInt();
 765     m_textDelete->SetValue(wxString::Format(_T("%ld"), sel));
 766
 767     wxLogMessage(_T("OwnerDrawnCombobox item %ld selected"), sel);
 768
 769     wxLogMessage(_T("OwnerDrawnCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
 770 }
 771
 772 void ODComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 773 {
 774     wxObject* ctrl = event.GetEventObject();
 775
 776     // Double-click cycles only applies to read-only combobox
 777     if ( ctrl == (wxObject*) m_chkReadonly )
 778     {
 779         m_chkDclickcycles->Enable( m_chkReadonly->GetValue() );
 780     }
 781     else if ( ctrl == (wxObject*) m_chkBitmapbutton )
 782     {
 783         m_chkStdbutton->Enable( m_chkBitmapbutton->GetValue() );
 784     }
 785     else if ( ctrl == (wxObject*) m_chkAlignbutleft )
 786     {
 787         wxUpdateUIEvent tempEvt;
 788         OnTextButtonAll(tempEvt);
 789     }
 790
 791     CreateCombo();
 792 }
 793
 794 wxBitmap ODComboboxWidgetsPage::CreateBitmap(const wxColour& colour)
 795 {
 796     int ch = m_combobox->GetClientSize().y - 1;
 797     int h0 = ch - 5;
 798
 799     long w = -1;
 800     long h = -1;
 801
 802     m_textButtonWidth->GetValue().ToLong(&w);
 803     m_textButtonHeight->GetValue().ToLong(&h);
 804
 805     if ( w <= 0 )
 806         w = h0 - 1;
 807     if ( h <= 0 )
 808         h = h0;
 809     if ( h > ch )
 810         h = ch;
 811
 812     wxMemoryDC dc;
 813     wxBitmap bmp(w,h);
 814     dc.SelectObject(bmp);
 815
 816     // Draw transparent background
 817     wxColour magic(255,0,255);
 818     wxBrush magicBrush(magic);
 819     dc.SetBrush(magicBrush);
 820     dc.SetPen(*wxTRANSPARENT_PEN);
 821     dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 822
 823     // Draw image content
 824     dc.SetBrush(wxBrush(colour));
 825     dc.DrawCircle(h/2,h/2+1,(h/2));
 826
 827     dc.SelectObject(wxNullBitmap);
 828
 829     // Finalize transparency with a mask
 830     wxMask *mask = new wxMask(bmp, magic);
 831     bmp.SetMask(mask);
 832
 833     return bmp;
 834 }
 835
 836 #endif //wxUSE_ODCOMBOBOX