samples/combo/combo.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combo.cpp
   3 // Purpose:     wxComboCtrl sample
   4 // Author:      Jaakko Salli
   5 // Modified by:
   6 // Created:     Apr-30-2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 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 // for all others, include the necessary headers (this file is usually all you
  28 // need because it includes almost all "standard" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #if !wxUSE_COMBOCTRL
  34     #error "Please set wxUSE_COMBOCTRL to 1 and rebuild the library."
  35 #endif
  36
  37 #include "wx/image.h"
  38
  39 #include "wx/combo.h"
  40 #include "wx/odcombo.h"
  41
  42 // ----------------------------------------------------------------------------
  43 // resources
  44 // ----------------------------------------------------------------------------
  45
  46 // the application icon (under Windows and OS/2 it is in resources and even
  47 // though we could still include the XPM here it would be unused)
  48 #if !defined(__WXMSW__) && !defined(__WXPM__)
  49     #include "../sample.xpm"
  50 #endif
  51
  52 // ----------------------------------------------------------------------------
  53 // private classes
  54 // ----------------------------------------------------------------------------
  55
  56 // Define a new application type, each program should derive a class from wxApp
  57 class MyApp : public wxApp
  58 {
  59 public:
  60     // override base class virtuals
  61     // ----------------------------
  62
  63     // this one is called on application startup and is a good place for the app
  64     // initialization (doing it here and not in the ctor allows to have an error
  65     // return: if OnInit() returns false, the application terminates)
  66     virtual bool OnInit();
  67 };
  68
  69 // Define a new frame type: this is going to be our main frame
  70 class MyFrame : public wxFrame
  71 {
  72 public:
  73     // ctor and dtor
  74     MyFrame(const wxString& title);
  75     ~MyFrame();
  76
  77     // event handlers (these functions should _not_ be virtual)
  78     void OnQuit(wxCommandEvent& event);
  79     void OnAbout(wxCommandEvent& event);
  80
  81     void OnShowComparison( wxCommandEvent& event );
  82
  83     // log wxComboCtrl events
  84     void OnComboBoxUpdate( wxCommandEvent& event );
  85
  86 protected:
  87     wxTextCtrl*     m_logWin;
  88     wxLog*          m_logOld;
  89
  90     // Common list of items for all dialogs.
  91     wxArrayString   m_arrItems;
  92
  93 private:
  94     // any class wishing to process wxWidgets events must use this macro
  95     DECLARE_EVENT_TABLE()
  96 };
  97
  98 // ----------------------------------------------------------------------------
  99 // constants
 100 // ----------------------------------------------------------------------------
 101
 102 // IDs for the controls and the menu commands
 103 enum
 104 {
 105     ComboControl_Compare = wxID_HIGHEST,
 106
 107     // menu items
 108     ComboControl_Quit = wxID_EXIT,
 109
 110     // it is important for the id corresponding to the "About" command to have
 111     // this standard value as otherwise it won't be handled properly under Mac
 112     // (where it is special and put into the "Apple" menu)
 113     ComboControl_About = wxID_ABOUT
 114 };
 115
 116 // ----------------------------------------------------------------------------
 117 // event tables and other macros for wxWidgets
 118 // ----------------------------------------------------------------------------
 119
 120 // the event tables connect the wxWidgets events with the functions (event
 121 // handlers) which process them. It can be also done at run-time, but for the
 122 // simple menu events like this the static method is much simpler.
 123 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 124     EVT_TEXT(wxID_ANY,MyFrame::OnComboBoxUpdate)
 125     EVT_COMBOBOX(wxID_ANY,MyFrame::OnComboBoxUpdate)
 126
 127     EVT_MENU(ComboControl_Compare,  MyFrame::OnShowComparison)
 128     EVT_MENU(ComboControl_Quit,     MyFrame::OnQuit)
 129     EVT_MENU(ComboControl_About,    MyFrame::OnAbout)
 130 END_EVENT_TABLE()
 131
 132 // Create a new application object: this macro will allow wxWidgets to create
 133 // the application object during program execution (it's better than using a
 134 // static object for many reasons) and also implements the accessor function
 135 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 136 // not wxApp)
 137 IMPLEMENT_APP(MyApp)
 138
 139 // ============================================================================
 140 // implementation
 141 // ============================================================================
 142
 143 // ----------------------------------------------------------------------------
 144 // the application class
 145 // ----------------------------------------------------------------------------
 146
 147 // 'Main program' equivalent: the program execution "starts" here
 148 bool MyApp::OnInit()
 149 {
 150     // create the main application window
 151     MyFrame *frame = new MyFrame(_T("wxComboCtrl and wxOwnerDrawnComboBox Sample"));
 152
 153     // and show it (the frames, unlike simple controls, are not shown when
 154     // created initially)
 155     frame->Show(true);
 156
 157     // success: wxApp::OnRun() will be called which will enter the main message
 158     // loop and the application will run. If we returned false here, the
 159     // application would exit immediately.
 160     return true;
 161 }
 162
 163
 164 // ----------------------------------------------------------------------------
 165 // wxOwnerDrawnComboBox with custom paint list items
 166 // ----------------------------------------------------------------------------
 167
 168 class wxPenStyleComboBox : public wxOwnerDrawnComboBox
 169 {
 170 public:
 171     virtual void OnDrawItem( wxDC& dc,
 172                              const wxRect& rect,
 173                              int item,
 174                              int flags ) const
 175     {
 176         if ( item == wxNOT_FOUND )
 177             return;
 178
 179         wxRect r(rect);
 180         r.Deflate(3);
 181         r.height -= 2;
 182
 183         int penStyle = wxSOLID;
 184         if ( item == 1 )
 185             penStyle = wxTRANSPARENT;
 186         else if ( item == 2 )
 187             penStyle = wxDOT;
 188         else if ( item == 3 )
 189             penStyle = wxLONG_DASH;
 190         else if ( item == 4 )
 191             penStyle = wxSHORT_DASH;
 192         else if ( item == 5 )
 193             penStyle = wxDOT_DASH;
 194         else if ( item == 6 )
 195             penStyle = wxBDIAGONAL_HATCH;
 196         else if ( item == 7 )
 197             penStyle = wxCROSSDIAG_HATCH;
 198         else if ( item == 8 )
 199             penStyle = wxFDIAGONAL_HATCH;
 200         else if ( item == 9 )
 201             penStyle = wxCROSS_HATCH;
 202         else if ( item == 10 )
 203             penStyle = wxHORIZONTAL_HATCH;
 204         else if ( item == 11 )
 205             penStyle = wxVERTICAL_HATCH;
 206
 207         wxPen pen( dc.GetTextForeground(), 3, penStyle );
 208
 209         // Get text colour as pen colour
 210         dc.SetPen( pen );
 211
 212         if ( !(flags & wxODCB_PAINTING_CONTROL) )
 213         {
 214             dc.DrawText(GetString( item ),
 215                         r.x + 3,
 216                         (r.y + 0) + ( (r.height/2) - dc.GetCharHeight() )/2
 217                        );
 218
 219             dc.DrawLine( r.x+5, r.y+((r.height/4)*3), r.x+r.width - 5, r.y+((r.height/4)*3) );
 220         }
 221         else
 222         {
 223             dc.DrawLine( r.x+5, r.y+r.height/2, r.x+r.width - 5, r.y+r.height/2 );
 224         }
 225     }
 226
 227     virtual void OnDrawBackground( wxDC& dc, const wxRect& rect,
 228                                    int item, int flags ) const
 229     {
 230
 231         // If item is selected or even, use the default rendering.
 232         if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) ||
 233              (item & 1) == 0 )
 234         {
 235             wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
 236             return;
 237         }
 238
 239         // Otherwise, draw every other background with different colour.
 240         wxColour bgCol(240,240,250);
 241         dc.SetBrush(wxBrush(bgCol));
 242         dc.SetPen(wxPen(bgCol));
 243         dc.DrawRectangle(rect);
 244     }
 245
 246     virtual wxCoord OnMeasureItem( size_t item ) const
 247     {
 248         // Simply demonstrate the ability to have variable-height items
 249         if ( item & 1 )
 250             return 36;
 251         else
 252             return 24;
 253     }
 254
 255     virtual wxCoord OnMeasureItemWidth( size_t WXUNUSED(item) ) const
 256     {
 257         return -1; // default - will be measured from text width
 258     }
 259
 260 };
 261
 262
 263 // ----------------------------------------------------------------------------
 264 // wxListView Custom popup interface
 265 // ----------------------------------------------------------------------------
 266
 267 #include <wx/listctrl.h>
 268
 269 class ListViewComboPopup : public wxListView, public wxComboPopup
 270 {
 271 public:
 272
 273     virtual void Init()
 274     {
 275         m_value = -1;
 276         m_itemHere = -1; // hot item in list
 277     }
 278
 279     virtual bool Create( wxWindow* parent )
 280     {
 281         return wxListView::Create(parent,1,
 282                                   wxPoint(0,0),wxDefaultSize,
 283                                   wxLC_LIST|wxLC_SINGLE_SEL|
 284                                   wxLC_SORT_ASCENDING|wxSIMPLE_BORDER);
 285     }
 286
 287     virtual wxWindow *GetControl() { return this; }
 288
 289     virtual void SetStringValue( const wxString& s )
 290     {
 291         int n = wxListView::FindItem(-1,s);
 292         if ( n >= 0 && n < GetItemCount() )
 293             wxListView::Select(n);
 294     }
 295
 296     virtual wxString GetStringValue() const
 297     {
 298         if ( m_value >= 0 )
 299             return wxListView::GetItemText(m_value);
 300         return wxEmptyString;
 301     }
 302
 303     //
 304     // Popup event handlers
 305     //
 306
 307     // Mouse hot-tracking
 308     void OnMouseMove(wxMouseEvent& event)
 309     {
 310         // Move selection to cursor if it is inside the popup
 311
 312         int resFlags;
 313         int itemHere = HitTest(event.GetPosition(),resFlags);
 314         if ( itemHere >= 0 )
 315         {
 316             wxListView::Select(itemHere,true);
 317             m_itemHere = itemHere;
 318         }
 319         event.Skip();
 320     }
 321
 322     // On mouse left, set the value and close the popup
 323     void OnMouseClick(wxMouseEvent& WXUNUSED(event))
 324     {
 325         m_value = m_itemHere;
 326         // TODO: Send event
 327         Dismiss();
 328     }
 329
 330     //
 331     // Utilies for item manipulation
 332     //
 333
 334     void AddSelection( const wxString& selstr )
 335     {
 336         wxListView::InsertItem(GetItemCount(),selstr);
 337     }
 338
 339 protected:
 340
 341     int             m_value; // current item index
 342     int             m_itemHere; // hot item in popup
 343
 344 private:
 345     DECLARE_EVENT_TABLE()
 346 };
 347
 348 BEGIN_EVENT_TABLE(ListViewComboPopup, wxListView)
 349     EVT_MOTION(ListViewComboPopup::OnMouseMove)
 350     // NOTE: Left down event is used instead of left up right now
 351     //       since MSW wxListCtrl doesn't seem to emit left ups
 352     //       consistently.
 353     EVT_LEFT_DOWN(ListViewComboPopup::OnMouseClick)
 354 END_EVENT_TABLE()
 355
 356
 357 // ----------------------------------------------------------------------------
 358 // wxTreeCtrl Custom popup interface
 359 // ----------------------------------------------------------------------------
 360
 361 #include <wx/treectrl.h>
 362
 363 class TreeCtrlComboPopup : public wxTreeCtrl, public wxComboPopup
 364 {
 365 public:
 366
 367     virtual void Init()
 368     {
 369     }
 370
 371     virtual bool Create( wxWindow* parent )
 372     {
 373         return wxTreeCtrl::Create(parent,1,
 374                                   wxPoint(0,0),wxDefaultSize,
 375                                   wxTR_HIDE_ROOT|wxTR_HAS_BUTTONS|
 376                                   wxTR_SINGLE|wxTR_LINES_AT_ROOT|
 377                                   wxSIMPLE_BORDER);
 378     }
 379
 380     virtual void OnShow()
 381     {
 382         // make sure selected item is visible
 383         if ( m_value.IsOk() )
 384             EnsureVisible(m_value);
 385     }
 386
 387     virtual wxSize GetAdjustedSize( int minWidth,
 388                                     int WXUNUSED(prefHeight),
 389                                     int maxHeight )
 390     {
 391         return wxSize(wxMax(300,minWidth),wxMin(250,maxHeight));
 392     }
 393
 394     virtual wxWindow *GetControl() { return this; }
 395
 396     // Needed by SetStringValue
 397     wxTreeItemId FindItemByText( wxTreeItemId parent, const wxString& text )
 398     {
 399         wxTreeItemIdValue cookie;
 400         wxTreeItemId child = GetFirstChild(parent,cookie);
 401         while ( child.IsOk() )
 402         {
 403             if ( GetItemText(child) == text )
 404             {
 405                 return child;
 406             }
 407             if ( ItemHasChildren(child) )
 408             {
 409                 wxTreeItemId found = FindItemByText(child,text);
 410                 if ( found.IsOk() )
 411                     return found;
 412             }
 413             child = GetNextChild(parent,cookie);
 414         }
 415         return wxTreeItemId();
 416     }
 417
 418     virtual void SetStringValue( const wxString& s )
 419     {
 420         wxTreeItemId root = GetRootItem();
 421         if ( !root.IsOk() )
 422             return;
 423
 424         wxTreeItemId found = FindItemByText(root,s);
 425         if ( found.IsOk() )
 426         {
 427             m_value = m_itemHere = found;
 428             wxTreeCtrl::SelectItem(found);
 429         }
 430     }
 431
 432     virtual wxString GetStringValue() const
 433     {
 434         if ( m_value.IsOk() )
 435             return wxTreeCtrl::GetItemText(m_value);
 436         return wxEmptyString;
 437     }
 438
 439     //
 440     // Popup event handlers
 441     //
 442
 443     // Mouse hot-tracking
 444     void OnMouseMove(wxMouseEvent& event)
 445     {
 446         int resFlags;
 447         wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
 448         if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
 449         {
 450             wxTreeCtrl::SelectItem(itemHere,true);
 451             m_itemHere = itemHere;
 452         }
 453         event.Skip();
 454     }
 455
 456     // On mouse left, set the value and close the popup
 457     void OnMouseClick(wxMouseEvent& event)
 458     {
 459         int resFlags;
 460         wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
 461         if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
 462         {
 463             m_itemHere = itemHere;
 464             m_value = itemHere;
 465             Dismiss();
 466             // TODO: Send event
 467         }
 468         event.Skip();
 469     }
 470
 471 protected:
 472
 473     wxTreeItemId        m_value; // current item index
 474     wxTreeItemId        m_itemHere; // hot item in popup
 475
 476 private:
 477     DECLARE_EVENT_TABLE()
 478 };
 479
 480 BEGIN_EVENT_TABLE(TreeCtrlComboPopup, wxTreeCtrl)
 481     EVT_MOTION(TreeCtrlComboPopup::OnMouseMove)
 482     // NOTE: Left down event is used instead of left up right now
 483     //       since MSW wxTreeCtrl doesn't seem to emit left ups
 484     //       consistently.
 485     EVT_LEFT_DOWN(TreeCtrlComboPopup::OnMouseClick)
 486 END_EVENT_TABLE()
 487
 488 // ----------------------------------------------------------------------------
 489 // wxComboCtrl with entirely custom button action (opens file dialog)
 490 // ----------------------------------------------------------------------------
 491
 492 class wxFileSelectorCombo : public wxComboCtrl
 493 {
 494 public:
 495     wxFileSelectorCombo() : wxComboCtrl() { Init(); }
 496
 497     wxFileSelectorCombo(wxWindow *parent,
 498                         wxWindowID id = wxID_ANY,
 499                         const wxString& value = wxEmptyString,
 500                         const wxPoint& pos = wxDefaultPosition,
 501                         const wxSize& size = wxDefaultSize,
 502                         long style = 0,
 503                         const wxValidator& validator = wxDefaultValidator,
 504                         const wxString& name = wxComboBoxNameStr)
 505         : wxComboCtrl()
 506     {
 507         Init();
 508         Create(parent,id,value,
 509                pos,size,
 510                // Style flag wxCC_STD_BUTTON makes the button
 511                // behave more like a standard push button.
 512                style | wxCC_STD_BUTTON,
 513                validator,name);
 514
 515         //
 516         // Prepare custom button bitmap (just '...' text)
 517         wxMemoryDC dc;
 518         wxBitmap bmp(12,16);
 519         dc.SelectObject(bmp);
 520
 521         // Draw transparent background
 522         wxColour magic(255,0,255);
 523         wxBrush magicBrush(magic);
 524         dc.SetBrush( magicBrush );
 525         dc.SetPen( *wxTRANSPARENT_PEN );
 526         dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 527
 528         // Draw text
 529         wxString str = wxT("...");
 530         int w,h;
 531         dc.GetTextExtent(str, &w, &h, 0, 0);
 532         dc.DrawText(str, (bmp.GetWidth()-w)/2, (bmp.GetHeight()-h)/2);
 533
 534         dc.SelectObject( wxNullBitmap );
 535
 536         // Finalize transparency with a mask
 537         wxMask *mask = new wxMask( bmp, magic );
 538         bmp.SetMask( mask );
 539
 540         SetButtonBitmaps(bmp,true);
 541     }
 542
 543     virtual void OnButtonClick()
 544     {
 545         // Show standard wxFileDialog on button click
 546
 547         wxFileDialog dlg(this,
 548                          wxT("Choose File"),
 549                          wxEmptyString,
 550                          GetValue(),
 551                          wxT("All files (*.*)|*.*"),
 552                          wxFD_OPEN);
 553
 554         if ( dlg.ShowModal() == wxID_OK )
 555         {
 556             SetValue(dlg.GetPath());
 557         }
 558     }
 559
 560 private:
 561     void Init()
 562     {
 563         // Initialize member variables here
 564     }
 565 };
 566
 567 // ----------------------------------------------------------------------------
 568 // main frame
 569 // ----------------------------------------------------------------------------
 570
 571 // frame constructor
 572 MyFrame::MyFrame(const wxString& title)
 573        : wxFrame(NULL, wxID_ANY, title)
 574 {
 575     wxBoxSizer* topSizer;
 576     wxBoxSizer* topRowSizer;
 577     wxBoxSizer* colSizer;
 578     wxBoxSizer* rowSizer;
 579
 580     // set the frame icon
 581     SetIcon(wxICON(sample));
 582
 583 #if wxUSE_MENUS
 584     // create a menu bar
 585     wxMenu *fileMenu = new wxMenu;
 586
 587     // the "About" item should be in the help menu
 588     wxMenu *helpMenu = new wxMenu;
 589     helpMenu->Append(ComboControl_About, _T("&About...\tF1"), _T("Show about dialog"));
 590
 591     fileMenu->Append(ComboControl_Compare, _T("&Compare against wxComboBox..."),
 592         _T("Show some wxOwnerDrawnComboBoxes side-by-side with native wxComboBoxes."));
 593     fileMenu->AppendSeparator();
 594     fileMenu->Append(ComboControl_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
 595
 596     // now append the freshly created menu to the menu bar...
 597     wxMenuBar *menuBar = new wxMenuBar();
 598     menuBar->Append(fileMenu, _T("&File"));
 599     menuBar->Append(helpMenu, _T("&Help"));
 600
 601     // ... and attach this menu bar to the frame
 602     SetMenuBar(menuBar);
 603 #endif // wxUSE_MENUS
 604
 605     wxPanel* panel = new wxPanel(this);
 606
 607     // Prepare log window right away since it shows EVT_TEXTs
 608     m_logWin = new wxTextCtrl( panel, 105, wxEmptyString, wxDefaultPosition,
 609                                wxSize(-1,125), wxTE_MULTILINE|wxFULL_REPAINT_ON_RESIZE );
 610     m_logWin->SetEditable(false);
 611     wxLogTextCtrl* logger = new wxLogTextCtrl( m_logWin );
 612     m_logOld = logger->SetActiveTarget( logger );
 613     logger->SetTimestamp( NULL );
 614
 615
 616     topSizer = new wxBoxSizer( wxVERTICAL );
 617
 618     topRowSizer = new wxBoxSizer( wxHORIZONTAL );
 619
 620     colSizer = new wxBoxSizer( wxVERTICAL );
 621
 622
 623     wxComboCtrl* cc;
 624     wxGenericComboControl* gcc;
 625     wxOwnerDrawnComboBox* odc;
 626
 627     // Create common strings array
 628     m_arrItems.Add( wxT("Solid") );
 629     m_arrItems.Add( wxT("Transparent") );
 630     m_arrItems.Add( wxT("Dot") );
 631     m_arrItems.Add( wxT("Long Dash") );
 632     m_arrItems.Add( wxT("Short Dash") );
 633     m_arrItems.Add( wxT("Dot Dash") );
 634     m_arrItems.Add( wxT("Backward Diagonal Hatch") );
 635     m_arrItems.Add( wxT("Cross-diagonal Hatch") );
 636     m_arrItems.Add( wxT("Forward Diagonal Hatch") );
 637     m_arrItems.Add( wxT("Cross Hatch") );
 638     m_arrItems.Add( wxT("Horizontal Hatch") );
 639     m_arrItems.Add( wxT("Vertical Hatch") );
 640
 641
 642     //
 643     // Create pen selector ODComboBox with owner-drawn items
 644     //
 645     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 646     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 647                    wxT("OwnerDrawnComboBox with owner-drawn items:")), 1,
 648                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 649     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 650
 651     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 652
 653
 654     // When defining derivative class for callbacks, we need
 655     // to use two-stage creation (or redefine the common wx
 656     // constructor).
 657     odc = new wxPenStyleComboBox();
 658     odc->Create(panel,wxID_ANY,wxEmptyString,
 659                 wxDefaultPosition, wxDefaultSize,
 660                 m_arrItems,
 661                 wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
 662                );
 663
 664
 665     odc->SetSelection(0);
 666
 667     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 668     rowSizer->AddStretchSpacer(1);
 669     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 670
 671
 672
 673     //
 674     // Same but with changed button position
 675     //
 676     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 677     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 678                    wxT("OwnerDrawnComboBox with owner-drawn items and button on the left:")), 1,
 679                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 680     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 681
 682     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 683
 684
 685     // When defining derivative class for callbacks, we need
 686     // to use two-stage creation (or redefine the common wx
 687     // constructor).
 688     odc = new wxPenStyleComboBox();
 689     odc->Create(panel,wxID_ANY,wxEmptyString,
 690                 wxDefaultPosition, wxDefaultSize,
 691                 m_arrItems,
 692                 wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
 693                );
 694
 695
 696     odc->SetSelection(0);
 697     odc->SetButtonPosition(-2, // width adjustment
 698                            -6, // height adjustment
 699                            wxLEFT, // side
 700                            2 // horizontal spacing
 701                           );
 702
 703     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 704     rowSizer->AddStretchSpacer(1);
 705     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 706
 707
 708     //
 709     // List View wxComboCtrl
 710     //
 711
 712     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 713     rowSizer->Add( new wxStaticText(panel,wxID_ANY,wxT("List View wxComboCtrl:")), 1,
 714                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 715     rowSizer->Add( new wxStaticText(panel,wxID_ANY,wxT("Tree Ctrl wxComboControl:")), 1,
 716                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 717     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 718
 719     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 720     cc = new wxComboCtrl(panel,2,wxEmptyString,
 721                          wxDefaultPosition, wxDefaultSize);
 722
 723     cc->SetPopupMinWidth(300);
 724
 725     ListViewComboPopup* iface = new ListViewComboPopup();
 726     cc->SetPopupControl(iface);
 727
 728     int i;
 729     for ( i=0; i<100; i++ )
 730         iface->AddSelection( wxString::Format(wxT("Item %02i"),i));
 731
 732     rowSizer->Add( cc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 733
 734
 735     //
 736     // Tree Ctrl wxComboCtrl
 737     //
 738
 739     // Note that we test that wxGenericComboControl works
 740     gcc = new wxGenericComboControl(panel,wxID_ANY,wxEmptyString,
 741                                     wxDefaultPosition, wxDefaultSize);
 742
 743     // Set popup interface right away, otherwise some of the calls
 744     // below may fail
 745     TreeCtrlComboPopup* tcPopup = new TreeCtrlComboPopup();
 746     gcc->SetPopupControl(tcPopup);
 747
 748     // Add items using wxTreeCtrl methods directly
 749     wxTreeItemId rootId = tcPopup->AddRoot(wxT("<hidden_root>"));
 750
 751     wxTreeItemId groupId;
 752
 753     for ( i=0; i<4; i++ )
 754     {
 755         groupId = tcPopup->AppendItem(rootId,
 756             wxString::Format(wxT("Branch %02i"),i));
 757
 758         int n;
 759         for ( n=0; n<25; n++ )
 760             tcPopup->AppendItem(groupId,
 761                 wxString::Format(wxT("Subitem %02i"),(i*25)+n));
 762     }
 763
 764     gcc->SetValue(wxT("Subitem 05"));
 765
 766     // Move button to left - it makes more sense for a tree ctrl
 767     gcc->SetButtonPosition(0, // width adjustment
 768                            0, // height adjustment
 769                            wxLEFT, // side
 770                            0 // horizontal spacing
 771                           );
 772
 773     rowSizer->Add( gcc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 774
 775     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 776
 777 #if wxUSE_IMAGE
 778     wxInitAllImageHandlers();
 779
 780     //
 781     // Custom Dropbutton Bitmaps
 782     // (second one uses blank button background)
 783     //
 784     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 785     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 786                    wxT("OwnerDrawnComboBox with simple dropbutton graphics:")), 1,
 787                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 788
 789     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 790
 791     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 792
 793     odc = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
 794                                    wxDefaultPosition, wxDefaultSize,
 795                                    m_arrItems,
 796                                    (long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
 797                                   );
 798
 799     wxOwnerDrawnComboBox* odc2;
 800     odc2 = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
 801                                     wxDefaultPosition, wxDefaultSize,
 802                                     m_arrItems,
 803                                     (long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
 804                                    );
 805
 806     // Load images from disk
 807     wxImage imgNormal(wxT("dropbutn.png"));
 808     wxImage imgPressed(wxT("dropbutp.png"));
 809     wxImage imgHover(wxT("dropbuth.png"));
 810
 811     if ( imgNormal.Ok() && imgPressed.Ok() && imgHover.Ok() )
 812     {
 813         wxBitmap bmpNormal(imgNormal);
 814         wxBitmap bmpPressed(imgPressed);
 815         wxBitmap bmpHover(imgHover);
 816         odc->SetButtonBitmaps(bmpNormal,false,bmpPressed,bmpHover);
 817         odc2->SetButtonBitmaps(bmpNormal,true,bmpPressed,bmpHover);
 818     }
 819     else
 820         wxLogError(wxT("Dropbutton images not found"));
 821
 822     //odc2->SetButtonPosition(0, // width adjustment
 823     //                        0, // height adjustment
 824     //                        wxLEFT, // side
 825     //                        0 // horizontal spacing
 826     //                       );
 827
 828     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 829     rowSizer->Add( odc2, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 830     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 831 #endif
 832
 833
 834     //
 835     // wxComboCtrl with totally custom button action (open file dialog)
 836     //
 837     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 838     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 839                         wxT("wxComboCtrl with custom button action:")), 1,
 840                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 841
 842
 843     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 844
 845     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 846     wxFileSelectorCombo* fsc;
 847
 848     fsc = new wxFileSelectorCombo(panel,wxID_ANY,wxEmptyString,
 849                                   wxDefaultPosition, wxDefaultSize,
 850                                   (long)0
 851                                  );
 852
 853     rowSizer->Add( fsc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 854     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 855
 856
 857     // Make sure GetFeatures is implemented
 858     wxComboCtrl::GetFeatures();
 859
 860
 861     topRowSizer->Add( colSizer, 1, wxALL, 2 );
 862
 863     topRowSizer->Add( m_logWin, 1, wxEXPAND|wxALL, 5 );
 864     topSizer->Add( topRowSizer, 1, wxEXPAND );
 865
 866     panel->SetSizer( topSizer );
 867     topSizer->SetSizeHints( panel );
 868
 869     SetSize(740,400);
 870     Centre();
 871 }
 872
 873 // event handlers
 874
 875 void MyFrame::OnComboBoxUpdate( wxCommandEvent& event )
 876 {
 877     // Don't show messages for the log output window (it'll crash)
 878     if ( !event.GetEventObject()->IsKindOf(CLASSINFO(wxComboCtrl)) )
 879         return;
 880
 881     if ( event.GetEventType() == wxEVT_COMMAND_COMBOBOX_SELECTED )
 882         wxLogDebug(wxT("EVT_COMBOBOX(id=%i,selection=%i)"),event.GetId(),event.GetSelection());
 883     else if ( event.GetEventType() == wxEVT_COMMAND_TEXT_UPDATED )
 884         wxLogDebug(wxT("EVT_TEXT(id=%i,string=\"%s\")"),event.GetId(),event.GetString().c_str());
 885 }
 886
 887 void MyFrame::OnShowComparison( wxCommandEvent& WXUNUSED(event) )
 888 {
 889     //
 890     // Show some wxOwnerDrawComboBoxes for comparison
 891     //
 892
 893     wxBoxSizer* colSizer;
 894     wxBoxSizer* rowSizer;
 895     wxStaticBoxSizer* groupSizer;
 896
 897     wxComboBox* cb;
 898     wxOwnerDrawnComboBox* odc;
 899
 900     const int border = 4;
 901
 902     wxDialog* dlg = new wxDialog(this,wxID_ANY,
 903                                  wxT("Compare against wxComboBox"),
 904                                  wxDefaultPosition,wxDefaultSize,
 905                                  wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER);
 906
 907     colSizer = new wxBoxSizer( wxVERTICAL );
 908
 909     rowSizer = new wxBoxSizer(wxHORIZONTAL);
 910
 911     groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY,wxT(" wxOwnerDrawnComboBox ")),
 912                                       wxVERTICAL);
 913
 914     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Writable, sorted:")), 0,
 915                      wxALIGN_CENTER_VERTICAL|wxRIGHT|wxEXPAND, border );
 916
 917     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
 918                                    wxDefaultPosition, wxDefaultSize,
 919                                    m_arrItems,
 920                                    wxCB_SORT // wxNO_BORDER|wxCB_READONLY
 921                                   );
 922
 923     odc->Append(wxT("H - Appended Item")); // test sorting in append
 924
 925     odc->SetValue(wxT("Dot Dash"));
 926
 927     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 928
 929     //
 930     // Readonly ODComboBox
 931     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Read-only:")), 0,
 932                      wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
 933
 934     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
 935                                    wxDefaultPosition, wxDefaultSize,
 936                                    m_arrItems,
 937                                    wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
 938                                   );
 939
 940     odc->SetValue(wxT("Dot Dash"));
 941     odc->SetText(wxT("Dot Dash (Testing SetText)"));
 942
 943     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 944
 945     //
 946     // Disabled ODComboBox
 947     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Disabled:")), 0,
 948                    wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
 949
 950     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
 951                                      wxDefaultPosition, wxDefaultSize,
 952                                      m_arrItems,
 953                                      wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
 954                                      );
 955
 956     odc->SetValue(wxT("Dot Dash"));
 957     odc->Enable(false);
 958
 959     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 960
 961     rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
 962
 963
 964     groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY,wxT(" wxComboBox ")),
 965                                       wxVERTICAL);
 966
 967     //
 968     // wxComboBox
 969     //
 970     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Writable, sorted:")), 0,
 971                      wxALIGN_CENTER_VERTICAL|wxRIGHT|wxEXPAND, border );
 972
 973     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
 974                         wxDefaultPosition, wxDefaultSize,
 975                         m_arrItems,
 976                         wxCB_SORT // wxNO_BORDER|wxCB_READONLY
 977                        );
 978
 979     cb->Append(wxT("H - Appended Item")); // test sorting in append
 980
 981     cb->SetValue(wxT("Dot Dash"));
 982
 983     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 984
 985     //
 986     // Readonly wxComboBox
 987     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Read-only:")), 0,
 988                      wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
 989
 990     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
 991                         wxDefaultPosition, wxDefaultSize,
 992                         m_arrItems,
 993                         wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
 994                        );
 995
 996     cb->SetValue(wxT("Dot Dash"));
 997
 998     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 999
1000     //
1001     // Disabled wxComboBox
1002     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Disabled:")), 0,
1003                    wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
1004
1005     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
1006                         wxDefaultPosition, wxDefaultSize,
1007                         m_arrItems,
1008                         wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
1009                        );
1010
1011     cb->SetValue(wxT("Dot Dash"));
1012     cb->Enable(false);
1013
1014     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1015
1016     rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
1017
1018     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, border );
1019
1020     dlg->SetSizer( colSizer );
1021     colSizer->SetSizeHints( dlg );
1022
1023     dlg->SetSize(60,240);
1024     dlg->Centre();
1025     dlg->ShowModal();
1026 }
1027
1028 MyFrame::~MyFrame()
1029 {
1030     delete wxLog::SetActiveTarget(m_logOld);
1031 }
1032
1033 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
1034 {
1035     // true is to force the frame to close
1036     Close(true);
1037 }
1038
1039 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
1040 {
1041     wxMessageBox(wxString::Format(
1042                     _T("Welcome to %s!\n")
1043                     _T("\n")
1044                     _T("This is the wxWidgets wxComboCtrl and wxOwnerDrawnComboBox sample\n")
1045                     _T("running under %s."),
1046                     wxVERSION_STRING,
1047                     wxGetOsDescription().c_str()
1048                  ),
1049                  _T("About wxComboCtrl sample"),
1050                  wxOK | wxICON_INFORMATION,
1051                  this);
1052 }