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 ( GetVListBoxComboPopup()->IsCurrent((size_t)item) ||
 268              (flags & wxODCB_PAINTING_CONTROL) ||
 269              (item & 1) == 0 )
 270         {
 271             wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
 272             return;
 273         }
 274
 275         // Otherwise, draw every other background with different colour.
 276         wxColour bgCol(240,240,250);
 277         dc.SetBrush(wxBrush(bgCol));
 278         dc.SetPen(wxPen(bgCol));
 279         dc.DrawRectangle(rect);
 280     }
 281
 282     virtual wxCoord OnMeasureItem(size_t WXUNUSED(item)) const
 283     {
 284         return 48;
 285     }
 286
 287     virtual wxCoord OnMeasureItemWidth(size_t WXUNUSED(item)) const
 288     {
 289         return -1; // default - will be measured from text width
 290     }
 291 };
 292
 293
 294 IMPLEMENT_WIDGETS_PAGE(ODComboboxWidgetsPage, _T("OwnerDrawnCombobox"),
 295                        GENERIC_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
 296                        );
 297
 298 ODComboboxWidgetsPage::ODComboboxWidgetsPage(WidgetsBookCtrl *book,
 299                                              wxImageList *imaglist)
 300                   : WidgetsPage(book, imaglist, odcombobox_xpm)
 301 {
 302     // init everything
 303     m_chkSort =
 304     m_chkReadonly =
 305     m_chkDclickcycles = (wxCheckBox *)NULL;
 306
 307     m_combobox = (wxOwnerDrawnComboBox *)NULL;
 308     m_sizerCombo = (wxSizer *)NULL;
 309 }
 310
 311 void ODComboboxWidgetsPage::CreateContent()
 312 {
 313     /*
 314        What we create here is a frame having 3 panes: style pane is the
 315        leftmost one, in the middle the pane with buttons allowing to perform
 316        miscellaneous combobox operations and the pane containing the combobox
 317        itself to the right
 318     */
 319     wxTextCtrl *text;
 320     wxSizer *sizerRow;
 321
 322     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 323
 324     wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
 325
 326     // left pane - style box
 327     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 328
 329     wxSizer *sizerStyle = new wxStaticBoxSizer(box, wxVERTICAL);
 330
 331     m_chkSort = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Sort items"));
 332     m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Read only"));
 333     m_chkDclickcycles = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Double-click Cycles"));
 334
 335     sizerStyle->AddSpacer(4);
 336
 337     m_chkBitmapbutton = CreateCheckBoxAndAddToSizer(sizerStyle, _T("&Bitmap button"));
 338     m_chkStdbutton = CreateCheckBoxAndAddToSizer(sizerStyle, _T("B&lank button background"));
 339
 340     wxButton *btn = new wxButton(this, ODComboPage_Reset, _T("&Reset"));
 341     sizerStyle->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 3);
 342
 343     sizerLeft->Add(sizerStyle, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL);
 344
 345     // left pane - popup adjustment box
 346     box = new wxStaticBox(this, wxID_ANY, _T("Adjust &popup"));
 347
 348     wxSizer *sizerPopupPos = new wxStaticBoxSizer(box, wxVERTICAL);
 349
 350     sizerRow = CreateSizerWithTextAndLabel(_T("Min. Width:"),
 351                                            ODComboPage_PopupMinWidth,
 352                                            &m_textPopupMinWidth);
 353     m_textPopupMinWidth->SetValue(wxT("-1"));
 354     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 355
 356     sizerRow = CreateSizerWithTextAndLabel(_T("Max. Height:"),
 357                                            ODComboPage_PopupHeight,
 358                                            &m_textPopupHeight);
 359     m_textPopupHeight->SetValue(wxT("-1"));
 360     sizerPopupPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 361
 362     m_chkAlignpopupright = CreateCheckBoxAndAddToSizer(sizerPopupPos, _T("Align Right"));
 363
 364     sizerLeft->Add(sizerPopupPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 365
 366     // left pane - button adjustment box
 367     box = new wxStaticBox(this, wxID_ANY, _T("Adjust &button"));
 368
 369     wxSizer *sizerButtonPos = new wxStaticBoxSizer(box, wxVERTICAL);
 370
 371     sizerRow = CreateSizerWithTextAndLabel(_T("Width:"),
 372                                            ODComboPage_ButtonWidth,
 373                                            &m_textButtonWidth);
 374     m_textButtonWidth->SetValue(wxT("-1"));
 375     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 376
 377     sizerRow = CreateSizerWithTextAndLabel(_T("VSpacing:"),
 378                                            ODComboPage_ButtonSpacing,
 379                                            &m_textButtonSpacing);
 380     m_textButtonSpacing->SetValue(wxT("0"));
 381     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 382
 383     sizerRow = CreateSizerWithTextAndLabel(_T("Height:"),
 384                                            ODComboPage_ButtonHeight,
 385                                            &m_textButtonHeight);
 386     m_textButtonHeight->SetValue(wxT("-1"));
 387     sizerButtonPos->Add(sizerRow, 0, wxALL | wxGROW, 5);
 388
 389     m_chkAlignbutleft = CreateCheckBoxAndAddToSizer(sizerButtonPos, _T("Align Left"));
 390
 391     sizerLeft->Add(sizerButtonPos, 0, wxGROW | wxALIGN_CENTRE_HORIZONTAL | wxTOP, 2);
 392
 393     // middle pane
 394     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
 395         _T("&Change combobox contents"));
 396     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 397
 398     sizerRow = CreateSizerWithTextAndLabel(_T("Current selection"),
 399                                            ODComboPage_CurText,
 400                                            &text);
 401     text->SetEditable(false);
 402
 403     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 404
 405     sizerRow = CreateSizerWithTextAndLabel(_T("Insertion Point"),
 406                                            ODComboPage_InsertionPointText,
 407                                            &text);
 408     text->SetEditable(false);
 409
 410     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 411
 412     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Insert,
 413                                             _T("&Insert this string"),
 414                                             ODComboPage_InsertText,
 415                                             &m_textInsert);
 416     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 417
 418     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Add,
 419                                             _T("&Add this string"),
 420                                             ODComboPage_AddText,
 421                                             &m_textAdd);
 422     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 423
 424     btn = new wxButton(this, ODComboPage_AddSeveral, _T("&Append a few strings"));
 425     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 426
 427     btn = new wxButton(this, ODComboPage_AddMany, _T("Append &many strings"));
 428     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 429
 430     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Change,
 431                                             _T("C&hange current"),
 432                                             ODComboPage_ChangeText,
 433                                             &m_textChange);
 434     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 435
 436     sizerRow = CreateSizerWithTextAndButton(ODComboPage_Delete,
 437                                             _T("&Delete this item"),
 438                                             ODComboPage_DeleteText,
 439                                             &m_textDelete);
 440     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 441
 442     btn = new wxButton(this, ODComboPage_DeleteSel, _T("Delete &selection"));
 443     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 444
 445     btn = new wxButton(this, ODComboPage_Clear, _T("&Clear"));
 446     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 447
 448     // right pane
 449     wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
 450     m_combobox = new DemoODComboBox();
 451     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 452                        wxDefaultPosition, wxDefaultSize,
 453                        0, NULL,
 454                        0);
 455     sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
 456     sizerRight->SetMinSize(150, 0);
 457     m_sizerCombo = sizerRight; // save it to modify it later
 458
 459     // the 3 panes panes compose the window
 460     sizerTop->Add(sizerLeft, 4, wxGROW | (wxALL & ~wxLEFT), 10);
 461     sizerTop->Add(sizerMiddle, 5, wxGROW | wxALL, 10);
 462     sizerTop->Add(sizerRight, 4, wxGROW | (wxALL & ~wxRIGHT), 10);
 463
 464     // final initializations
 465     Reset();
 466
 467     SetSizer(sizerTop);
 468
 469     sizerTop->Fit(this);
 470 }
 471
 472 // ----------------------------------------------------------------------------
 473 // operations
 474 // ----------------------------------------------------------------------------
 475
 476 void ODComboboxWidgetsPage::Reset()
 477 {
 478     m_chkSort->SetValue(false);
 479     m_chkReadonly->SetValue(false);
 480     m_chkDclickcycles->SetValue(false);
 481     m_chkDclickcycles->Enable(false);
 482     m_chkBitmapbutton->SetValue(false);
 483     m_chkStdbutton->SetValue(false);
 484     m_chkStdbutton->Enable(false);
 485 }
 486
 487 void ODComboboxWidgetsPage::CreateCombo()
 488 {
 489     int flags = ms_defaultFlags;
 490
 491     if ( m_chkSort->GetValue() )
 492         flags |= wxCB_SORT;
 493     if ( m_chkReadonly->GetValue() )
 494         flags |= wxCB_READONLY;
 495     if ( m_chkDclickcycles->GetValue() )
 496         flags |= wxODCB_DCLICK_CYCLES;
 497
 498     wxArrayString items;
 499     if ( m_combobox )
 500     {
 501         unsigned int count = m_combobox->GetCount();
 502         for ( unsigned int n = 0; n < count; n++ )
 503         {
 504             items.Add(m_combobox->GetString(n));
 505         }
 506
 507         m_sizerCombo->Detach( m_combobox );
 508         delete m_combobox;
 509     }
 510
 511     m_combobox = new DemoODComboBox();
 512     m_combobox->Create(this, ODComboPage_Combo, wxEmptyString,
 513                        wxDefaultPosition, wxDefaultSize,
 514                        0, NULL,
 515                        flags);
 516
 517     unsigned int count = items.GetCount();
 518     for ( unsigned int n = 0; n < count; n++ )
 519     {
 520         m_combobox->Append(items[n]);
 521     }
 522
 523     // Update from controls that edit popup position etc.
 524
 525     wxUpdateUIEvent tempEvt;
 526     OnTextPopupWidth(tempEvt);
 527     OnTextPopupHeight(tempEvt);
 528     GetButtonPosition();
 529
 530     m_combobox->SetPopupAnchor( m_chkAlignpopupright->GetValue() ? wxRIGHT : wxLEFT );
 531
 532     if ( m_chkBitmapbutton->GetValue() )
 533     {
 534         wxBitmap bmpNormal = CreateBitmap(wxColour(0,0,255));
 535         wxBitmap bmpPressed = CreateBitmap(wxColour(0,0,128));
 536         wxBitmap bmpHover = CreateBitmap(wxColour(128,128,255));
 537         m_combobox->SetButtonBitmaps(bmpNormal,m_chkStdbutton->GetValue(),bmpPressed,bmpHover);
 538     }
 539
 540     m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
 541     m_sizerCombo->Layout();
 542 }
 543
 544 // ----------------------------------------------------------------------------
 545 // event handlers
 546 // ----------------------------------------------------------------------------
 547
 548 void ODComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 549 {
 550     Reset();
 551
 552     CreateCombo();
 553 }
 554
 555 void ODComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
 556 {
 557     int sel = m_combobox->GetSelection();
 558     if ( sel != wxNOT_FOUND )
 559     {
 560 #ifndef __WXGTK__
 561         m_combobox->SetString(sel, m_textChange->GetValue());
 562 #else
 563         wxLogMessage(_T("Not implemented in wxGTK"));
 564 #endif
 565     }
 566 }
 567
 568 void ODComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
 569 {
 570     unsigned long n;
 571     if ( !m_textDelete->GetValue().ToULong(&n) ||
 572             (n >= m_combobox->GetCount()) )
 573     {
 574         return;
 575     }
 576
 577     m_combobox->Delete(n);
 578 }
 579
 580 void ODComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
 581 {
 582     int sel = m_combobox->GetSelection();
 583     if ( sel != wxNOT_FOUND )
 584     {
 585         m_combobox->Delete(sel);
 586     }
 587 }
 588
 589 void ODComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 590 {
 591     m_combobox->Clear();
 592 }
 593
 594 void ODComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 595 {
 596     static unsigned int s_item = 0;
 597
 598     wxString s = m_textInsert->GetValue();
 599     if ( !m_textInsert->IsModified() )
 600     {
 601         // update the default string
 602         m_textInsert->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 603     }
 604
 605     if (m_combobox->GetSelection() >= 0)
 606         m_combobox->Insert(s, m_combobox->GetSelection());
 607 }
 608
 609 void ODComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 610 {
 611     static unsigned int s_item = 0;
 612
 613     wxString s = m_textAdd->GetValue();
 614     if ( !m_textAdd->IsModified() )
 615     {
 616         // update the default string
 617         m_textAdd->SetValue(wxString::Format(_T("test item %u"), ++s_item));
 618     }
 619
 620     m_combobox->Append(s);
 621 }
 622
 623 void ODComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
 624 {
 625     // "many" means 1000 here
 626     for ( unsigned int n = 0; n < 1000; n++ )
 627     {
 628         m_combobox->Append(wxString::Format(_T("item #%u"), n));
 629     }
 630 }
 631
 632 void ODComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
 633 {
 634     m_combobox->Append(_T("First"));
 635     m_combobox->Append(_T("another one"));
 636     m_combobox->Append(_T("and the last (very very very very very very very very very very long) one"));
 637 }
 638
 639 void ODComboboxWidgetsPage::OnTextPopupWidth(wxCommandEvent& WXUNUSED(event))
 640 {
 641     long l = 0;
 642
 643     m_textPopupMinWidth->GetValue().ToLong(&l);
 644
 645     if (m_combobox && l > 0)
 646     {
 647         m_combobox->SetPopupMinWidth(l);
 648     }
 649 }
 650
 651 void ODComboboxWidgetsPage::OnTextPopupHeight(wxCommandEvent& WXUNUSED(event))
 652 {
 653     long l = 0;
 654
 655     m_textPopupHeight->GetValue().ToLong(&l);
 656
 657     if (m_combobox && l > 0)
 658     {
 659         m_combobox->SetPopupMaxHeight(l);
 660     }
 661 }
 662
 663 void ODComboboxWidgetsPage::GetButtonPosition()
 664 {
 665     long w = -1;
 666     long h = -1;
 667     long spacing = 0;
 668
 669     m_textButtonWidth->GetValue().ToLong(&w);
 670     m_textButtonSpacing->GetValue().ToLong(&spacing);
 671     m_textButtonHeight->GetValue().ToLong(&h);
 672     int align = m_chkAlignbutleft->GetValue() ?
 673                 wxLEFT : wxRIGHT;
 674
 675     m_combobox->SetButtonPosition(w,h,align,spacing);
 676 }
 677
 678 void ODComboboxWidgetsPage::OnTextButtonAll(wxCommandEvent& WXUNUSED(event))
 679 {
 680     if (m_combobox)
 681     {
 682         if ( m_chkBitmapbutton->GetValue() )
 683             CreateCombo();
 684         else
 685             GetButtonPosition();
 686     }
 687 }
 688
 689 void ODComboboxWidgetsPage::OnUpdateUICurText(wxUpdateUIEvent& event)
 690 {
 691     if (m_combobox)
 692         event.SetText( wxString::Format(_T("%d"), m_combobox->GetSelection()) );
 693 }
 694
 695 void ODComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
 696 {
 697     if (m_combobox)
 698         event.SetText( wxString::Format(_T("%ld"), m_combobox->GetInsertionPoint()) );
 699 }
 700
 701 void ODComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 702 {
 703     if (m_combobox)
 704         event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() ||
 705                       m_chkBitmapbutton->GetValue() );
 706 }
 707
 708 void ODComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
 709 {
 710     if (m_combobox)
 711     {
 712         bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
 713                        (m_combobox->GetSelection() >= 0);
 714
 715         event.Enable(enable);
 716     }
 717 }
 718
 719 void ODComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
 720 {
 721     if (m_combobox)
 722     {
 723       unsigned long n;
 724       event.Enable(m_textDelete->GetValue().ToULong(&n) &&
 725         (n < (unsigned)m_combobox->GetCount()));
 726     }
 727 }
 728
 729 void ODComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
 730 {
 731     if (m_combobox)
 732         event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
 733 }
 734
 735 void ODComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 736 {
 737     if (m_combobox)
 738         event.Enable(m_combobox->GetCount() != 0);
 739 }
 740
 741 void ODComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
 742 {
 743     if (m_combobox)
 744         event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
 745 }
 746
 747 void ODComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
 748 {
 749     if (!m_combobox)
 750         return;
 751
 752     wxString s = event.GetString();
 753
 754     wxASSERT_MSG( s == m_combobox->GetValue(),
 755                   _T("event and combobox values should be the same") );
 756
 757     if (event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER)
 758         wxLogMessage(_T("OwnerDrawnCombobox enter pressed (now '%s')"), s.c_str());
 759     else
 760         wxLogMessage(_T("OwnerDrawnCombobox text changed (now '%s')"), s.c_str());
 761 }
 762
 763 void ODComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
 764 {
 765     long sel = event.GetInt();
 766     m_textDelete->SetValue(wxString::Format(_T("%ld"), sel));
 767
 768     wxLogMessage(_T("OwnerDrawnCombobox item %ld selected"), sel);
 769
 770     wxLogMessage(_T("OwnerDrawnCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
 771 }
 772
 773 void ODComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 774 {
 775     wxObject* ctrl = event.GetEventObject();
 776
 777     // Double-click cycles only applies to read-only combobox
 778     if ( ctrl == (wxObject*) m_chkReadonly )
 779     {
 780         m_chkDclickcycles->Enable( m_chkReadonly->GetValue() );
 781     }
 782     else if ( ctrl == (wxObject*) m_chkBitmapbutton )
 783     {
 784         m_chkStdbutton->Enable( m_chkBitmapbutton->GetValue() );
 785     }
 786     else if ( ctrl == (wxObject*) m_chkAlignbutleft )
 787     {
 788         wxUpdateUIEvent tempEvt;
 789         OnTextButtonAll(tempEvt);
 790     }
 791
 792     CreateCombo();
 793 }
 794
 795 wxBitmap ODComboboxWidgetsPage::CreateBitmap(const wxColour& colour)
 796 {
 797     int ch = m_combobox->GetClientSize().y - 1;
 798     int h0 = ch - 5;
 799
 800     long w = -1;
 801     long h = -1;
 802
 803     m_textButtonWidth->GetValue().ToLong(&w);
 804     m_textButtonHeight->GetValue().ToLong(&h);
 805
 806     if ( w <= 0 )
 807         w = h0 - 1;
 808     if ( h <= 0 )
 809         h = h0;
 810     if ( h > ch )
 811         h = ch;
 812
 813     wxMemoryDC dc;
 814     wxBitmap bmp(w,h);
 815     dc.SelectObject(bmp);
 816
 817     // Draw transparent background
 818     wxColour magic(255,0,255);
 819     wxBrush magicBrush(magic);
 820     dc.SetBrush(magicBrush);
 821     dc.SetPen(*wxTRANSPARENT_PEN);
 822     dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 823
 824     // Draw image content
 825     dc.SetBrush(wxBrush(colour));
 826     dc.DrawCircle(h/2,h/2+1,(h/2));
 827
 828     dc.SelectObject(wxNullBitmap);
 829
 830     // Finalize transparency with a mask
 831     wxMask *mask = new wxMask(bmp, magic);
 832     bmp.SetMask(mask);
 833
 834     return bmp;
 835 }
 836
 837 #endif //wxUSE_ODCOMBOBOX