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
 469 // ----------------------------------------------------------------------------
 470 // operations
 471 // ----------------------------------------------------------------------------
 472
 473 void ODComboboxWidgetsPage::Reset()
 474 {
 475     m_chkSort->SetValue(false);
 476     m_chkReadonly->SetValue(false);
 477     m_chkDclickcycles->SetValue(false);
 478     m_chkDclickcycles->Enable(false);
 479     m_chkBitmapbutton->SetValue(false);
 480     m_chkStdbutton->SetValue(false);
 481     m_chkStdbutton->Enable(false);
 482 }
 483
 484 void ODComboboxWidgetsPage::CreateCombo()
 485 {
 486     int flags = ms_defaultFlags;
 487
 488     if ( m_chkSort->GetValue() )
 489         flags |= wxCB_SORT;
 490     if ( m_chkReadonly->GetValue() )
 491         flags |= wxCB_READONLY;
 492     if ( m_chkDclickcycles->GetValue() )
 493         flags |= wxODCB_DCLICK_CYCLES;
 494
 495     wxArrayString items;
 496     if ( m_combobox )
 497     {
 498         unsigned int count = m_combobox->GetCount();
 499         for ( unsigned int n = 0; n < count; n++ )
 500         {
 501             items.Add(m_combobox->GetString(n));
 502         }
 503
 504         m_sizerCombo->Detach( m_combobox );
 505         delete m_combobox;
 506     }
 507
 508     m_combobox = new DemoODComboBox();
 509     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 510                        wxDefaultPosition, wxDefaultSize,
 511                        0, NULL,
 512                        flags);
 513
 514     unsigned int count = items.GetCount();
 515     for ( unsigned int n = 0; n < count; n++ )
 516     {
 517         m_combobox->Append(items[n]);
 518     }
 519
 520     // Update from controls that edit popup position etc.
 521
 522     wxUpdateUIEvent tempEvt;
 523     OnTextPopupWidth(tempEvt);
 524     OnTextPopupHeight(tempEvt);
 525     GetButtonPosition();
 526
 527     m_combobox->SetPopupAnchor( m_chkAlignpopupright->GetValue() ? wxRIGHT : wxLEFT );
 528
 529     if ( m_chkBitmapbutton->GetValue() )
 530     {
 531         wxBitmap bmpNormal = CreateBitmap(wxColour(0,0,255));
 532         wxBitmap bmpPressed = CreateBitmap(wxColour(0,0,128));
 533         wxBitmap bmpHover = CreateBitmap(wxColour(128,128,255));
 534         m_combobox->SetButtonBitmaps(bmpNormal,m_chkStdbutton->GetValue(),bmpPressed,bmpHover);
 535     }
 536
 537     m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
 538     m_sizerCombo->Layout();
 539 }
 540
 541 // ----------------------------------------------------------------------------
 542 // event handlers
 543 // ----------------------------------------------------------------------------
 544
 545 void ODComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 546 {
 547     Reset();
 548
 549     CreateCombo();
 550 }
 551
 552 void ODComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
 553 {
 554     int sel = m_combobox->GetSelection();
 555     if ( sel != wxNOT_FOUND )
 556     {
 557 #ifndef __WXGTK__
 558         m_combobox->SetString(sel, m_textChange->GetValue());
 559 #else
 560         wxLogMessage(_T("Not implemented in wxGTK"));
 561 #endif
 562     }
 563 }
 564
 565 void ODComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
 566 {
 567     unsigned long n;
 568     if ( !m_textDelete->GetValue().ToULong(&n) ||
 569             (n >= m_combobox->GetCount()) )
 570     {
 571         return;
 572     }
 573
 574     m_combobox->Delete(n);
 575 }
 576
 577 void ODComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
 578 {
 579     int sel = m_combobox->GetSelection();
 580     if ( sel != wxNOT_FOUND )
 581     {
 582         m_combobox->Delete(sel);
 583     }
 584 }
 585
 586 void ODComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 587 {
 588     m_combobox->Clear();
 589 }
 590
 591 void ODComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 592 {
 593     static unsigned int s_item = 0;
 594
 595     wxString s = m_textInsert->GetValue();
 596     if ( !m_textInsert->IsModified() )
 597     {
 598         // update the default string
 599         m_textInsert->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 600     }
 601
 602     if (m_combobox->GetSelection() >= 0)
 603         m_combobox->Insert(s, m_combobox->GetSelection());
 604 }
 605
 606 void ODComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 607 {
 608     static unsigned int s_item = 0;
 609
 610     wxString s = m_textAdd->GetValue();
 611     if ( !m_textAdd->IsModified() )
 612     {
 613         // update the default string
 614         m_textAdd->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 615     }
 616
 617     m_combobox->Append(s);
 618 }
 619
 620 void ODComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
 621 {
 622     // "many" means 1000 here
 623     for ( unsigned int n = 0; n < 1000; n++ )
 624     {
 625         m_combobox->Append(wxString::Format(_T("item #%u"), n));
 626     }
 627 }
 628
 629 void ODComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
 630 {
 631     m_combobox->Append(_T("First"));
 632     m_combobox->Append(_T("another one"));
 633     m_combobox->Append(_T("and the last (very very very very very very very very very very long) one"));
 634 }
 635
 636 void ODComboboxWidgetsPage::OnTextPopupWidth(wxCommandEvent& WXUNUSED(event))
 637 {
 638     long l = 0;
 639
 640     m_textPopupMinWidth->GetValue().ToLong(&l);
 641
 642     if (m_combobox && l > 0)
 643     {
 644         m_combobox->SetPopupMinWidth(l);
 645     }
 646 }
 647
 648 void ODComboboxWidgetsPage::OnTextPopupHeight(wxCommandEvent& WXUNUSED(event))
 649 {
 650     long l = 0;
 651
 652     m_textPopupHeight->GetValue().ToLong(&l);
 653
 654     if (m_combobox && l > 0)
 655     {
 656         m_combobox->SetPopupMaxHeight(l);
 657     }
 658 }
 659
 660 void ODComboboxWidgetsPage::GetButtonPosition()
 661 {
 662     long w = -1;
 663     long h = -1;
 664     long spacing = 0;
 665
 666     m_textButtonWidth->GetValue().ToLong(&w);
 667     m_textButtonSpacing->GetValue().ToLong(&spacing);
 668     m_textButtonHeight->GetValue().ToLong(&h);
 669     int align = m_chkAlignbutleft->GetValue() ?
 670                 wxLEFT : wxRIGHT;
 671
 672     m_combobox->SetButtonPosition(w,h,align,spacing);
 673 }
 674
 675 void ODComboboxWidgetsPage::OnTextButtonAll(wxCommandEvent& WXUNUSED(event))
 676 {
 677     if (m_combobox)
 678     {
 679         if ( m_chkBitmapbutton->GetValue() )
 680             CreateCombo();
 681         else
 682             GetButtonPosition();
 683     }
 684 }
 685
 686 void ODComboboxWidgetsPage::OnUpdateUICurText(wxUpdateUIEvent& event)
 687 {
 688     if (m_combobox)
 689         event.SetText( wxString::Format(_T("%d"), m_combobox->GetSelection()) );
 690 }
 691
 692 void ODComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
 693 {
 694     if (m_combobox)
 695         event.SetText( wxString::Format(_T("%ld"), m_combobox->GetInsertionPoint()) );
 696 }
 697
 698 void ODComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 699 {
 700     if (m_combobox)
 701         event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() ||
 702                       m_chkBitmapbutton->GetValue() );
 703 }
 704
 705 void ODComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
 706 {
 707     if (m_combobox)
 708     {
 709         bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
 710                        (m_combobox->GetSelection() >= 0);
 711
 712         event.Enable(enable);
 713     }
 714 }
 715
 716 void ODComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
 717 {
 718     if (m_combobox)
 719     {
 720       unsigned long n;
 721       event.Enable(m_textDelete->GetValue().ToULong(&n) &&
 722         (n < (unsigned)m_combobox->GetCount()));
 723     }
 724 }
 725
 726 void ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
 727 {
 728     if (m_combobox)
 729         event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
 730 }
 731
 732 void ODComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 733 {
 734     if (m_combobox)
 735         event.Enable(m_combobox->GetCount() != 0);
 736 }
 737
 738 void ODComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
 739 {
 740     if (m_combobox)
 741         event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
 742 }
 743
 744 void ODComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
 745 {
 746     if (!m_combobox)
 747         return;
 748
 749     wxString s = event.GetString();
 750
 751     wxASSERT_MSG( s == m_combobox->GetValue(),
 752                   _T("event and combobox values should be the same") );
 753
 754     if (event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER)
 755         wxLogMessage(_T("OwnerDrawnCombobox enter pressed (now '%s')"), s.c_str());
 756     else
 757         wxLogMessage(_T("OwnerDrawnCombobox text changed (now '%s')"), s.c_str());
 758 }
 759
 760 void ODComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
 761 {
 762     long sel = event.GetInt();
 763     m_textDelete->SetValue(wxString::Format(_T("%ld"), sel));
 764
 765     wxLogMessage(_T("OwnerDrawnCombobox item %ld selected"), sel);
 766
 767     wxLogMessage(_T("OwnerDrawnCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
 768 }
 769
 770 void ODComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 771 {
 772     wxObject* ctrl = event.GetEventObject();
 773
 774     // Double-click cycles only applies to read-only combobox
 775     if ( ctrl == (wxObject*) m_chkReadonly )
 776     {
 777         m_chkDclickcycles->Enable( m_chkReadonly->GetValue() );
 778     }
 779     else if ( ctrl == (wxObject*) m_chkBitmapbutton )
 780     {
 781         m_chkStdbutton->Enable( m_chkBitmapbutton->GetValue() );
 782     }
 783     else if ( ctrl == (wxObject*) m_chkAlignbutleft )
 784     {
 785         wxUpdateUIEvent tempEvt;
 786         OnTextButtonAll(tempEvt);
 787     }
 788
 789     CreateCombo();
 790 }
 791
 792 wxBitmap ODComboboxWidgetsPage::CreateBitmap(const wxColour& colour)
 793 {
 794     int ch = m_combobox->GetClientSize().y - 1;
 795     int h0 = ch - 5;
 796
 797     long w = -1;
 798     long h = -1;
 799
 800     m_textButtonWidth->GetValue().ToLong(&w);
 801     m_textButtonHeight->GetValue().ToLong(&h);
 802
 803     if ( w <= 0 )
 804         w = h0 - 1;
 805     if ( h <= 0 )
 806         h = h0;
 807     if ( h > ch )
 808         h = ch;
 809
 810     wxMemoryDC dc;
 811     wxBitmap bmp(w,h);
 812     dc.SelectObject(bmp);
 813
 814     // Draw transparent background
 815     wxColour magic(255,0,255);
 816     wxBrush magicBrush(magic);
 817     dc.SetBrush(magicBrush);
 818     dc.SetPen(*wxTRANSPARENT_PEN);
 819     dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 820
 821     // Draw image content
 822     dc.SetBrush(wxBrush(colour));
 823     dc.DrawCircle(h/2,h/2+1,(h/2));
 824
 825     dc.SelectObject(wxNullBitmap);
 826
 827     // Finalize transparency with a mask
 828     wxMask *mask = new wxMask(bmp, magic);
 829     bmp.SetMask(mask);
 830
 831     return bmp;
 832 }
 833
 834 #endif //wxUSE_ODCOMBOBOX