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 // Licence:     wxWindows licence
  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 "itemcontainer.h"
  49 #include "widgets.h"
  50
  51 #include "icons/odcombobox.xpm"
  52
  53 // ----------------------------------------------------------------------------
  54 // constants
  55 // ----------------------------------------------------------------------------
  56
  57 // control ids
  58 enum
  59 {
  60     ODComboPage_Reset = wxID_HIGHEST,
  61     ODComboPage_PopupMinWidth,
  62     ODComboPage_PopupHeight,
  63     ODComboPage_ButtonWidth,
  64     ODComboPage_ButtonHeight,
  65     ODComboPage_ButtonSpacing,
  66     ODComboPage_CurText,
  67     ODComboPage_InsertionPointText,
  68     ODComboPage_Insert,
  69     ODComboPage_InsertText,
  70     ODComboPage_Add,
  71     ODComboPage_AddText,
  72     ODComboPage_AddSeveral,
  73     ODComboPage_AddMany,
  74     ODComboPage_Clear,
  75     ODComboPage_Change,
  76     ODComboPage_ChangeText,
  77     ODComboPage_Delete,
  78     ODComboPage_DeleteText,
  79     ODComboPage_DeleteSel,
  80     ODComboPage_Combo,
  81     ODComboPage_ContainerTests
  82 };
  83
  84
  85 // ----------------------------------------------------------------------------
  86 // ODComboboxWidgetsPage
  87 // ----------------------------------------------------------------------------
  88
  89 class ODComboboxWidgetsPage : public ItemContainerWidgetsPage
  90 {
  91 public:
  92     ODComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  93
  94     virtual wxControl *GetWidget() const { return m_combobox; }
  95     virtual wxTextEntryBase *GetTextEntry() const
  96         { return m_combobox ? m_combobox->GetTextCtrl() : NULL; }
  97     virtual wxItemContainer* GetContainer() const { return m_combobox; }
  98     virtual void RecreateWidget() { CreateCombo(); }
  99
 100     // lazy creation of the content
 101     virtual void CreateContent();
 102
 103 protected:
 104     // event handlers
 105     void OnButtonReset(wxCommandEvent& event);
 106     void OnButtonChange(wxCommandEvent& event);
 107     void OnButtonDelete(wxCommandEvent& event);
 108     void OnButtonDeleteSel(wxCommandEvent& event);
 109     void OnButtonClear(wxCommandEvent& event);
 110     void OnButtonInsert(wxCommandEvent &event);
 111     void OnButtonAdd(wxCommandEvent& event);
 112     void OnButtonAddSeveral(wxCommandEvent& event);
 113     void OnButtonAddMany(wxCommandEvent& event);
 114
 115     void OnComboBox(wxCommandEvent& event);
 116     void OnDropDown(wxCommandEvent& event);
 117     void OnCloseUp(wxCommandEvent& event);
 118     void OnComboText(wxCommandEvent& event);
 119
 120     void OnCheckOrRadioBox(wxCommandEvent& event);
 121
 122     void OnTextPopupWidth(wxCommandEvent& event);
 123     void OnTextPopupHeight(wxCommandEvent& event);
 124     void OnTextButtonAll(wxCommandEvent& event);
 125
 126     void OnUpdateUICurText(wxUpdateUIEvent& event);
 127     void OnUpdateUIInsertionPointText(wxUpdateUIEvent& event);
 128
 129     void OnUpdateUIInsert(wxUpdateUIEvent& event);
 130     void OnUpdateUIAddSeveral(wxUpdateUIEvent& event);
 131     void OnUpdateUIClearButton(wxUpdateUIEvent& event);
 132     void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
 133     void OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event);
 134     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 135
 136     // reset the odcombobox parameters
 137     void Reset();
 138
 139     // (re)create the odcombobox
 140     void CreateCombo();
 141
 142     // helper that gets all button values from controls and calls SetButtonPosition
 143     void GetButtonPosition();
 144
 145     // helper to create the button bitmap
 146     wxBitmap CreateBitmap(const wxColour& colour);
 147
 148     // the controls
 149     // ------------
 150
 151     // the checkboxes for styles
 152     wxCheckBox *m_chkSort,
 153                *m_chkReadonly,
 154                *m_chkDclickcycles,
 155                *m_chkBitmapbutton,
 156                *m_chkStdbutton;
 157
 158     // the text entries for popup and button adjustment
 159     wxTextCtrl *m_textPopupMinWidth,
 160                *m_textPopupHeight,
 161                *m_textButtonWidth,
 162                *m_textButtonHeight,
 163                *m_textButtonSpacing;
 164
 165     // the checkboxes for same
 166     wxCheckBox *m_chkAlignpopupright,
 167                *m_chkAlignbutleft;
 168
 169     // the combobox itself and the sizer it is in
 170     wxOwnerDrawnComboBox *m_combobox;
 171     wxSizer *m_sizerCombo;
 172
 173     // the text entries for "Add/change string" and "Delete" buttons
 174     wxTextCtrl *m_textInsert,
 175                *m_textAdd,
 176                *m_textChange,
 177                *m_textDelete;
 178
 179 private:
 180     DECLARE_EVENT_TABLE()
 181     DECLARE_WIDGETS_PAGE(ODComboboxWidgetsPage)
 182 };
 183
 184 // ----------------------------------------------------------------------------
 185 // event tables
 186 // ----------------------------------------------------------------------------
 187
 188 BEGIN_EVENT_TABLE(ODComboboxWidgetsPage, WidgetsPage)
 189     EVT_BUTTON(ODComboPage_Reset, ODComboboxWidgetsPage::OnButtonReset)
 190     EVT_BUTTON(ODComboPage_Change, ODComboboxWidgetsPage::OnButtonChange)
 191     EVT_BUTTON(ODComboPage_Delete, ODComboboxWidgetsPage::OnButtonDelete)
 192     EVT_BUTTON(ODComboPage_DeleteSel, ODComboboxWidgetsPage::OnButtonDeleteSel)
 193     EVT_BUTTON(ODComboPage_Clear, ODComboboxWidgetsPage::OnButtonClear)
 194     EVT_BUTTON(ODComboPage_Insert, ODComboboxWidgetsPage::OnButtonInsert)
 195     EVT_BUTTON(ODComboPage_Add, ODComboboxWidgetsPage::OnButtonAdd)
 196     EVT_BUTTON(ODComboPage_AddSeveral, ODComboboxWidgetsPage::OnButtonAddSeveral)
 197     EVT_BUTTON(ODComboPage_AddMany, ODComboboxWidgetsPage::OnButtonAddMany)
 198     EVT_BUTTON(ODComboPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer)
 199
 200     EVT_TEXT_ENTER(ODComboPage_InsertText, ODComboboxWidgetsPage::OnButtonInsert)
 201     EVT_TEXT_ENTER(ODComboPage_AddText, ODComboboxWidgetsPage::OnButtonAdd)
 202     EVT_TEXT_ENTER(ODComboPage_DeleteText, ODComboboxWidgetsPage::OnButtonDelete)
 203
 204     EVT_TEXT(ODComboPage_PopupMinWidth, ODComboboxWidgetsPage::OnTextPopupWidth)
 205     EVT_TEXT(ODComboPage_PopupHeight, ODComboboxWidgetsPage::OnTextPopupHeight)
 206     EVT_TEXT(ODComboPage_ButtonWidth, ODComboboxWidgetsPage::OnTextButtonAll)
 207     EVT_TEXT(ODComboPage_ButtonHeight, ODComboboxWidgetsPage::OnTextButtonAll)
 208     EVT_TEXT(ODComboPage_ButtonSpacing, ODComboboxWidgetsPage::OnTextButtonAll)
 209
 210     EVT_UPDATE_UI(ODComboPage_CurText, ODComboboxWidgetsPage::OnUpdateUICurText)
 211     EVT_UPDATE_UI(ODComboPage_InsertionPointText, ODComboboxWidgetsPage::OnUpdateUIInsertionPointText)
 212
 213     EVT_UPDATE_UI(ODComboPage_Reset, ODComboboxWidgetsPage::OnUpdateUIResetButton)
 214     EVT_UPDATE_UI(ODComboPage_Insert, ODComboboxWidgetsPage::OnUpdateUIInsert)
 215     EVT_UPDATE_UI(ODComboPage_AddSeveral, ODComboboxWidgetsPage::OnUpdateUIAddSeveral)
 216     EVT_UPDATE_UI(ODComboPage_Clear, ODComboboxWidgetsPage::OnUpdateUIClearButton)
 217     EVT_UPDATE_UI(ODComboPage_DeleteText, ODComboboxWidgetsPage::OnUpdateUIClearButton)
 218     EVT_UPDATE_UI(ODComboPage_Delete, ODComboboxWidgetsPage::OnUpdateUIDeleteButton)
 219     EVT_UPDATE_UI(ODComboPage_Change, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 220     EVT_UPDATE_UI(ODComboPage_ChangeText, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 221     EVT_UPDATE_UI(ODComboPage_DeleteSel, ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 222
 223     EVT_COMBOBOX_DROPDOWN(ODComboPage_Combo, ODComboboxWidgetsPage::OnDropDown)
 224     EVT_COMBOBOX_CLOSEUP(ODComboPage_Combo, ODComboboxWidgetsPage::OnCloseUp)
 225     EVT_COMBOBOX(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboBox)
 226     EVT_TEXT(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboText)
 227     EVT_TEXT_ENTER(ODComboPage_Combo, ODComboboxWidgetsPage::OnComboText)
 228
 229     EVT_CHECKBOX(wxID_ANY, ODComboboxWidgetsPage::OnCheckOrRadioBox)
 230     EVT_RADIOBOX(wxID_ANY, ODComboboxWidgetsPage::OnCheckOrRadioBox)
 231 END_EVENT_TABLE()
 232
 233 // ============================================================================
 234 // implementation
 235 // ============================================================================
 236
 237 //
 238 // wxOwnerDrawnComboBox needs to subclassed so that owner-drawing
 239 // callbacks can be implemented.
 240 class DemoODComboBox : public wxOwnerDrawnComboBox
 241 {
 242 public:
 243     virtual void OnDrawItem(wxDC& dc,
 244                             const wxRect& rect,
 245                             int item,
 246                             int WXUNUSED(flags)) const
 247     {
 248         if ( item == wxNOT_FOUND )
 249             return;
 250
 251         wxColour txtCol;
 252         int mod = item % 4;
 253
 254         if ( mod == 0 )
 255             txtCol = *wxBLACK;
 256         else if ( mod == 1 )
 257             txtCol = *wxRED;
 258         else if ( mod == 2 )
 259             txtCol = *wxGREEN;
 260         else
 261             txtCol = *wxBLUE;
 262
 263         dc.SetTextForeground(txtCol);
 264
 265         dc.DrawText(GetString(item),
 266                     rect.x + 3,
 267                     rect.y + ((rect.height - dc.GetCharHeight())/2)
 268                    );
 269     }
 270
 271     virtual void OnDrawBackground(wxDC& dc, const wxRect& rect,
 272                                   int item, int flags ) const
 273     {
 274
 275         // If item is selected or even, or we are painting the
 276         // combo control itself, use the default rendering.
 277         if ( (flags & (wxODCB_PAINTING_CONTROL|wxODCB_PAINTING_SELECTED)) ||
 278              (item & 1) == 0 )
 279         {
 280             wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
 281             return;
 282         }
 283
 284         // Otherwise, draw every other background with different colour.
 285         wxColour bgCol(240,240,250);
 286         dc.SetBrush(wxBrush(bgCol));
 287         dc.SetPen(wxPen(bgCol));
 288         dc.DrawRectangle(rect);
 289     }
 290
 291     virtual wxCoord OnMeasureItem(size_t WXUNUSED(item)) const
 292     {
 293         return 48;
 294     }
 295
 296     virtual wxCoord OnMeasureItemWidth(size_t WXUNUSED(item)) const
 297     {
 298         return -1; // default - will be measured from text width
 299     }
 300 };
 301
 302
 303 IMPLEMENT_WIDGETS_PAGE(ODComboboxWidgetsPage, wxT("OwnerDrawnCombobox"),
 304                        GENERIC_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
 305                        );
 306
 307 ODComboboxWidgetsPage::ODComboboxWidgetsPage(WidgetsBookCtrl *book,
 308                                              wxImageList *imaglist)
 309                   : ItemContainerWidgetsPage(book, imaglist, odcombobox_xpm)
 310 {
 311     // init everything
 312     m_chkSort =
 313     m_chkReadonly =
 314     m_chkDclickcycles = (wxCheckBox *)NULL;
 315
 316     m_combobox = (wxOwnerDrawnComboBox *)NULL;
 317     m_sizerCombo = (wxSizer *)NULL;
 318 }
 319
 320 void ODComboboxWidgetsPage::CreateContent()
 321 {
 322     /*
 323        What we create here is a frame having 3 panes: style pane is the
 324        leftmost one, in the middle the pane with buttons allowing to perform
 325        miscellaneous combobox operations and the pane containing the combobox
 326        itself to the right
 327     */
 328     wxTextCtrl *text;
 329     wxSizer *sizerRow;
 330
 331     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 332
 333     wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
 334
 335     // left pane - style box
 336     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, wxT("&Set style"));
 337
 338     wxSizer *sizerStyle = new wxStaticBoxSizer(box, wxVERTICAL);
 339
 340     m_chkSort = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Sort items"));
 341     m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Read only"));
 342     m_chkDclickcycles = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Double-click Cycles"));
 343
 344     sizerStyle->AddSpacer(4);
 345
 346     m_chkBitmapbutton = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Bitmap button"));
 347     m_chkStdbutton = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("B&lank button background"));
 348
 349     wxButton *btn = new wxButton(this, ODComboPage_Reset, wxT("&Reset"));
 350     sizerStyle->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 3);
 351
 352     sizerLeft->Add(sizerStyle, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL);
 353
 354     // left pane - popup adjustment box
 355     box = new wxStaticBox(this, wxID_ANY, wxT("Adjust &popup"));
 356
 357     wxSizer *sizerPopupPos = new wxStaticBoxSizer(box, wxVERTICAL);
 358
 359     sizerRow = CreateSizerWithTextAndLabel(wxT("Min. Width:"),
 360                                            ODComboPage_PopupMinWidth,
 361                                            &m_textPopupMinWidth);
 362     m_textPopupMinWidth->SetValue(wxT("-1"));
 363     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 364
 365     sizerRow = CreateSizerWithTextAndLabel(wxT("Max. Height:"),
 366                                            ODComboPage_PopupHeight,
 367                                            &m_textPopupHeight);
 368     m_textPopupHeight->SetValue(wxT("-1"));
 369     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 370
 371     m_chkAlignpopupright = CreateCheckBoxAndAddToSizer(sizerPopupPos, wxT("Align Right"));
 372
 373     sizerLeft->Add(sizerPopupPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 374
 375     // left pane - button adjustment box
 376     box = new wxStaticBox(this, wxID_ANY, wxT("Adjust &button"));
 377
 378     wxSizer *sizerButtonPos = new wxStaticBoxSizer(box, wxVERTICAL);
 379
 380     sizerRow = CreateSizerWithTextAndLabel(wxT("Width:"),
 381                                            ODComboPage_ButtonWidth,
 382                                            &m_textButtonWidth);
 383     m_textButtonWidth->SetValue(wxT("-1"));
 384     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 385
 386     sizerRow = CreateSizerWithTextAndLabel(wxT("VSpacing:"),
 387                                            ODComboPage_ButtonSpacing,
 388                                            &m_textButtonSpacing);
 389     m_textButtonSpacing->SetValue(wxT("0"));
 390     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 391
 392     sizerRow = CreateSizerWithTextAndLabel(wxT("Height:"),
 393                                            ODComboPage_ButtonHeight,
 394                                            &m_textButtonHeight);
 395     m_textButtonHeight->SetValue(wxT("-1"));
 396     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 397
 398     m_chkAlignbutleft = CreateCheckBoxAndAddToSizer(sizerButtonPos, wxT("Align Left"));
 399
 400     sizerLeft->Add(sizerButtonPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 401
 402     // middle pane
 403     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
 404         wxT("&Change combobox contents"));
 405     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 406
 407     btn = new wxButton(this, ODComboPage_ContainerTests, wxT("Run &tests"));
 408     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 409
 410     sizerRow = CreateSizerWithTextAndLabel(wxT("Current selection"),
 411                                            ODComboPage_CurText,
 412                                            &text);
 413     text->SetEditable(false);
 414
 415     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 416
 417     sizerRow = CreateSizerWithTextAndLabel(wxT("Insertion Point"),
 418                                            ODComboPage_InsertionPointText,
 419                                            &text);
 420     text->SetEditable(false);
 421
 422     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 423
 424     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Insert,
 425                                             wxT("&Insert this string"),
 426                                             ODComboPage_InsertText,
 427                                             &m_textInsert);
 428     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 429
 430     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Add,
 431                                             wxT("&Add this string"),
 432                                             ODComboPage_AddText,
 433                                             &m_textAdd);
 434     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 435
 436     btn = new wxButton(this, ODComboPage_AddSeveral, wxT("&Append a few strings"));
 437     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 438
 439     btn = new wxButton(this, ODComboPage_AddMany, wxT("Append &many strings"));
 440     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 441
 442     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Change,
 443                                             wxT("C&hange current"),
 444                                             ODComboPage_ChangeText,
 445                                             &m_textChange);
 446     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 447
 448     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Delete,
 449                                             wxT("&Delete this item"),
 450                                             ODComboPage_DeleteText,
 451                                             &m_textDelete);
 452     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 453
 454     btn = new wxButton(this, ODComboPage_DeleteSel, wxT("Delete &selection"));
 455     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 456
 457     btn = new wxButton(this, ODComboPage_Clear, wxT("&Clear"));
 458     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 459
 460     // right pane
 461     wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
 462     m_combobox = new DemoODComboBox();
 463     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 464                        wxDefaultPosition, wxDefaultSize,
 465                        0, NULL,
 466                        0);
 467     sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
 468     sizerRight->SetMinSize(150, 0);
 469     m_sizerCombo = sizerRight; // save it to modify it later
 470
 471     // the 3 panes panes compose the window
 472     sizerTop->Add(sizerLeft, 4, wxGROW | (wxALL & ~wxLEFT), 10);
 473     sizerTop->Add(sizerMiddle, 5, wxGROW | wxALL, 10);
 474     sizerTop->Add(sizerRight, 4, wxGROW | (wxALL & ~wxRIGHT), 10);
 475
 476     // final initializations
 477     Reset();
 478
 479     SetSizer(sizerTop);
 480 }
 481
 482 // ----------------------------------------------------------------------------
 483 // operations
 484 // ----------------------------------------------------------------------------
 485
 486 void ODComboboxWidgetsPage::Reset()
 487 {
 488     m_chkSort->SetValue(false);
 489     m_chkReadonly->SetValue(false);
 490     m_chkDclickcycles->SetValue(false);
 491     m_chkDclickcycles->Enable(false);
 492     m_chkBitmapbutton->SetValue(false);
 493     m_chkStdbutton->SetValue(false);
 494     m_chkStdbutton->Enable(false);
 495 }
 496
 497 void ODComboboxWidgetsPage::CreateCombo()
 498 {
 499     int flags = ms_defaultFlags;
 500
 501     if ( m_chkSort->GetValue() )
 502         flags |= wxCB_SORT;
 503     if ( m_chkReadonly->GetValue() )
 504         flags |= wxCB_READONLY;
 505     if ( m_chkDclickcycles->GetValue() )
 506         flags |= wxODCB_DCLICK_CYCLES;
 507
 508     wxArrayString items;
 509     if ( m_combobox )
 510     {
 511         unsigned int count = m_combobox->GetCount();
 512         for ( unsigned int n = 0; n < count; n++ )
 513         {
 514             items.Add(m_combobox->GetString(n));
 515         }
 516
 517         m_sizerCombo->Detach( m_combobox );
 518         delete m_combobox;
 519     }
 520
 521     m_combobox = new DemoODComboBox();
 522     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 523                        wxDefaultPosition, wxDefaultSize,
 524                        0, NULL,
 525                        flags);
 526
 527     unsigned int count = items.GetCount();
 528     for ( unsigned int n = 0; n < count; n++ )
 529     {
 530         m_combobox->Append(items[n]);
 531     }
 532
 533     // Update from controls that edit popup position etc.
 534
 535     wxUpdateUIEvent tempEvt;
 536     OnTextPopupWidth(tempEvt);
 537     OnTextPopupHeight(tempEvt);
 538     GetButtonPosition();
 539
 540     m_combobox->SetPopupAnchor( m_chkAlignpopupright->GetValue() ? wxRIGHT : wxLEFT );
 541
 542     if ( m_chkBitmapbutton->GetValue() )
 543     {
 544         wxBitmap bmpNormal = CreateBitmap(*wxBLUE);
 545         wxBitmap bmpPressed = CreateBitmap(wxColour(0,0,128));
 546         wxBitmap bmpHover = CreateBitmap(wxColour(128,128,255));
 547         m_combobox->SetButtonBitmaps(bmpNormal,m_chkStdbutton->GetValue(),bmpPressed,bmpHover);
 548     }
 549
 550     m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
 551     m_sizerCombo->Layout();
 552 }
 553
 554 // ----------------------------------------------------------------------------
 555 // event handlers
 556 // ----------------------------------------------------------------------------
 557
 558 void ODComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 559 {
 560     Reset();
 561
 562     CreateCombo();
 563 }
 564
 565 void ODComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
 566 {
 567     int sel = m_combobox->GetSelection();
 568     if ( sel != wxNOT_FOUND )
 569     {
 570 #ifndef __WXGTK__
 571         m_combobox->SetString(sel, m_textChange->GetValue());
 572 #else
 573         wxLogMessage(wxT("Not implemented in wxGTK"));
 574 #endif
 575     }
 576 }
 577
 578 void ODComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
 579 {
 580     unsigned long n;
 581     if ( !m_textDelete->GetValue().ToULong(&n) ||
 582             (n >= m_combobox->GetCount()) )
 583     {
 584         return;
 585     }
 586
 587     m_combobox->Delete(n);
 588 }
 589
 590 void ODComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
 591 {
 592     int sel = m_combobox->GetSelection();
 593     if ( sel != wxNOT_FOUND )
 594     {
 595         m_combobox->Delete(sel);
 596     }
 597 }
 598
 599 void ODComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 600 {
 601     m_combobox->Clear();
 602 }
 603
 604 void ODComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 605 {
 606     static unsigned int s_item = 0;
 607
 608     wxString s = m_textInsert->GetValue();
 609     if ( !m_textInsert->IsModified() )
 610     {
 611         // update the default string
 612         m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
 613     }
 614
 615     if (m_combobox->GetSelection() >= 0)
 616         m_combobox->Insert(s, m_combobox->GetSelection());
 617 }
 618
 619 void ODComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 620 {
 621     static unsigned int s_item = 0;
 622
 623     wxString s = m_textAdd->GetValue();
 624     if ( !m_textAdd->IsModified() )
 625     {
 626         // update the default string
 627         m_textAdd->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
 628     }
 629
 630     m_combobox->Append(s);
 631 }
 632
 633 void ODComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
 634 {
 635     // "many" means 1000 here
 636     for ( unsigned int n = 0; n < 1000; n++ )
 637     {
 638         m_combobox->Append(wxString::Format(wxT("item #%u"), n));
 639     }
 640 }
 641
 642 void ODComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
 643 {
 644     m_combobox->Append(wxT("First"));
 645     m_combobox->Append(wxT("another one"));
 646     m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one"));
 647 }
 648
 649 void ODComboboxWidgetsPage::OnTextPopupWidth(wxCommandEvent& WXUNUSED(event))
 650 {
 651     long l = 0;
 652
 653     m_textPopupMinWidth->GetValue().ToLong(&l);
 654
 655     if (m_combobox && l > 0)
 656     {
 657         m_combobox->SetPopupMinWidth(l);
 658     }
 659 }
 660
 661 void ODComboboxWidgetsPage::OnTextPopupHeight(wxCommandEvent& WXUNUSED(event))
 662 {
 663     long l = 0;
 664
 665     m_textPopupHeight->GetValue().ToLong(&l);
 666
 667     if (m_combobox && l > 0)
 668     {
 669         m_combobox->SetPopupMaxHeight(l);
 670     }
 671 }
 672
 673 void ODComboboxWidgetsPage::GetButtonPosition()
 674 {
 675     long w = -1;
 676     long h = -1;
 677     long spacing = 0;
 678
 679     m_textButtonWidth->GetValue().ToLong(&w);
 680     m_textButtonSpacing->GetValue().ToLong(&spacing);
 681     m_textButtonHeight->GetValue().ToLong(&h);
 682     int align = m_chkAlignbutleft->GetValue() ?
 683                 wxLEFT : wxRIGHT;
 684
 685     m_combobox->SetButtonPosition(w,h,align,spacing);
 686 }
 687
 688 void ODComboboxWidgetsPage::OnTextButtonAll(wxCommandEvent& WXUNUSED(event))
 689 {
 690     if (m_combobox)
 691     {
 692         if ( m_chkBitmapbutton->GetValue() )
 693             CreateCombo();
 694         else
 695             GetButtonPosition();
 696     }
 697 }
 698
 699 void ODComboboxWidgetsPage::OnUpdateUICurText(wxUpdateUIEvent& event)
 700 {
 701     if (m_combobox)
 702         event.SetText( wxString::Format(wxT("%d"), m_combobox->GetSelection()) );
 703 }
 704
 705 void ODComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
 706 {
 707     if (m_combobox)
 708         event.SetText( wxString::Format(wxT("%ld"), m_combobox->GetInsertionPoint()) );
 709 }
 710
 711 void ODComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 712 {
 713     if (m_combobox)
 714         event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() ||
 715                       m_chkBitmapbutton->GetValue() );
 716 }
 717
 718 void ODComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
 719 {
 720     if (m_combobox)
 721     {
 722         bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
 723                        (m_combobox->GetSelection() >= 0);
 724
 725         event.Enable(enable);
 726     }
 727 }
 728
 729 void ODComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
 730 {
 731     if (m_combobox)
 732     {
 733       unsigned long n;
 734       event.Enable(m_textDelete->GetValue().ToULong(&n) &&
 735         (n < (unsigned)m_combobox->GetCount()));
 736     }
 737 }
 738
 739 void ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
 740 {
 741     if (m_combobox)
 742         event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
 743 }
 744
 745 void ODComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 746 {
 747     if (m_combobox)
 748         event.Enable(m_combobox->GetCount() != 0);
 749 }
 750
 751 void ODComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
 752 {
 753     if (m_combobox)
 754         event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
 755 }
 756
 757 void ODComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
 758 {
 759     if (!m_combobox)
 760         return;
 761
 762     wxString s = event.GetString();
 763
 764     wxASSERT_MSG( s == m_combobox->GetValue(),
 765                   wxT("event and combobox values should be the same") );
 766
 767     if (event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER)
 768     {
 769         wxLogMessage(wxT("OwnerDrawnCombobox enter pressed (now '%s')"), s.c_str());
 770     }
 771     else
 772     {
 773         wxLogMessage(wxT("OwnerDrawnCombobox text changed (now '%s')"), s.c_str());
 774     }
 775 }
 776
 777 void ODComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
 778 {
 779     long sel = event.GetInt();
 780     m_textDelete->SetValue(wxString::Format(wxT("%ld"), sel));
 781
 782     wxLogMessage(wxT("OwnerDrawnCombobox item %ld selected"), sel);
 783
 784     wxLogMessage(wxT("OwnerDrawnCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
 785 }
 786
 787 void ODComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 788 {
 789     wxObject* ctrl = event.GetEventObject();
 790
 791     // Double-click cycles only applies to read-only combobox
 792     if ( ctrl == (wxObject*) m_chkReadonly )
 793     {
 794         m_chkDclickcycles->Enable( m_chkReadonly->GetValue() );
 795     }
 796     else if ( ctrl == (wxObject*) m_chkBitmapbutton )
 797     {
 798         m_chkStdbutton->Enable( m_chkBitmapbutton->GetValue() );
 799     }
 800     else if ( ctrl == (wxObject*) m_chkAlignbutleft )
 801     {
 802         wxUpdateUIEvent tempEvt;
 803         OnTextButtonAll(tempEvt);
 804     }
 805
 806     CreateCombo();
 807 }
 808
 809 wxBitmap ODComboboxWidgetsPage::CreateBitmap(const wxColour& colour)
 810 {
 811     int ch = m_combobox->GetClientSize().y - 1;
 812     int h0 = ch - 5;
 813
 814     long w = -1;
 815     long h = -1;
 816
 817     m_textButtonWidth->GetValue().ToLong(&w);
 818     m_textButtonHeight->GetValue().ToLong(&h);
 819
 820     if ( w <= 0 )
 821         w = h0 - 1;
 822     if ( h <= 0 )
 823         h = h0;
 824     if ( h > ch )
 825         h = ch;
 826
 827     wxMemoryDC dc;
 828     wxBitmap bmp(w,h);
 829     dc.SelectObject(bmp);
 830
 831     // Draw transparent background
 832     wxColour magic(255,0,255);
 833     wxBrush magicBrush(magic);
 834     dc.SetBrush(magicBrush);
 835     dc.SetPen(*wxTRANSPARENT_PEN);
 836     dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 837
 838     // Draw image content
 839     dc.SetBrush(wxBrush(colour));
 840     dc.DrawCircle(h/2,h/2+1,(h/2));
 841
 842     dc.SelectObject(wxNullBitmap);
 843
 844     // Finalize transparency with a mask
 845     wxMask *mask = new wxMask(bmp, magic);
 846     bmp.SetMask(mask);
 847
 848     return bmp;
 849 }
 850
 851 void ODComboboxWidgetsPage::OnDropDown(wxCommandEvent& WXUNUSED(event))
 852 {
 853     wxLogMessage(wxT("Combobox dropped down"));
 854 }
 855
 856 void ODComboboxWidgetsPage::OnCloseUp(wxCommandEvent& WXUNUSED(event))
 857 {
 858     wxLogMessage(wxT("Combobox closed up"));
 859 }
 860
 861 #endif //wxUSE_ODCOMBOBOX