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