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     void OnIdle( wxIdleEvent& event );
  87
  88
  89 protected:
  90     wxTextCtrl*     m_logWin;
  91     wxLog*          m_logOld;
  92
  93     // Common list of items for all dialogs.
  94     wxArrayString   m_arrItems;
  95
  96 private:
  97     // any class wishing to process wxWidgets events must use this macro
  98     DECLARE_EVENT_TABLE()
  99 };
 100
 101 // ----------------------------------------------------------------------------
 102 // constants
 103 // ----------------------------------------------------------------------------
 104
 105 // IDs for the controls and the menu commands
 106 enum
 107 {
 108     ComboCtrl_Compare = wxID_HIGHEST,
 109
 110     // menu items
 111     ComboCtrl_Quit = wxID_EXIT,
 112
 113     // it is important for the id corresponding to the "About" command to have
 114     // this standard value as otherwise it won't be handled properly under Mac
 115     // (where it is special and put into the "Apple" menu)
 116     ComboCtrl_About = wxID_ABOUT
 117 };
 118
 119 // ----------------------------------------------------------------------------
 120 // event tables and other macros for wxWidgets
 121 // ----------------------------------------------------------------------------
 122
 123 // the event tables connect the wxWidgets events with the functions (event
 124 // handlers) which process them. It can be also done at run-time, but for the
 125 // simple menu events like this the static method is much simpler.
 126 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 127     EVT_TEXT(wxID_ANY,MyFrame::OnComboBoxUpdate)
 128     EVT_TEXT_ENTER(wxID_ANY,MyFrame::OnComboBoxUpdate)
 129     EVT_COMBOBOX(wxID_ANY,MyFrame::OnComboBoxUpdate)
 130
 131     EVT_MENU(ComboCtrl_Compare,  MyFrame::OnShowComparison)
 132     EVT_MENU(ComboCtrl_Quit,     MyFrame::OnQuit)
 133     EVT_MENU(ComboCtrl_About,    MyFrame::OnAbout)
 134
 135     EVT_IDLE(MyFrame::OnIdle)
 136 END_EVENT_TABLE()
 137
 138 // Create a new application object: this macro will allow wxWidgets to create
 139 // the application object during program execution (it's better than using a
 140 // static object for many reasons) and also implements the accessor function
 141 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 142 // not wxApp)
 143 IMPLEMENT_APP(MyApp)
 144
 145 // ============================================================================
 146 // implementation
 147 // ============================================================================
 148
 149 // ----------------------------------------------------------------------------
 150 // the application class
 151 // ----------------------------------------------------------------------------
 152
 153 // 'Main program' equivalent: the program execution "starts" here
 154 bool MyApp::OnInit()
 155 {
 156     if ( !wxApp::OnInit() )
 157         return false;
 158
 159     // create the main application window
 160     MyFrame *frame = new MyFrame(wxT("wxComboCtrl and wxOwnerDrawnComboBox Sample"));
 161
 162     // and show it (the frames, unlike simple controls, are not shown when
 163     // created initially)
 164     frame->Show(true);
 165
 166     // success: wxApp::OnRun() will be called which will enter the main message
 167     // loop and the application will run. If we returned false here, the
 168     // application would exit immediately.
 169     return true;
 170 }
 171
 172
 173 // ----------------------------------------------------------------------------
 174 // wxOwnerDrawnComboBox with custom paint list items
 175 // ----------------------------------------------------------------------------
 176
 177 class wxPenStyleComboBox : public wxOwnerDrawnComboBox
 178 {
 179 public:
 180     virtual void OnDrawItem( wxDC& dc,
 181                              const wxRect& rect,
 182                              int item,
 183                              int flags ) const
 184     {
 185         if ( item == wxNOT_FOUND )
 186             return;
 187
 188         wxRect r(rect);
 189         r.Deflate(3);
 190         r.height -= 2;
 191
 192         int penStyle = wxSOLID;
 193         if ( item == 1 )
 194             penStyle = wxTRANSPARENT;
 195         else if ( item == 2 )
 196             penStyle = wxDOT;
 197         else if ( item == 3 )
 198             penStyle = wxLONG_DASH;
 199         else if ( item == 4 )
 200             penStyle = wxSHORT_DASH;
 201         else if ( item == 5 )
 202             penStyle = wxDOT_DASH;
 203         else if ( item == 6 )
 204             penStyle = wxBDIAGONAL_HATCH;
 205         else if ( item == 7 )
 206             penStyle = wxCROSSDIAG_HATCH;
 207         else if ( item == 8 )
 208             penStyle = wxFDIAGONAL_HATCH;
 209         else if ( item == 9 )
 210             penStyle = wxCROSS_HATCH;
 211         else if ( item == 10 )
 212             penStyle = wxHORIZONTAL_HATCH;
 213         else if ( item == 11 )
 214             penStyle = wxVERTICAL_HATCH;
 215
 216         wxPen pen( dc.GetTextForeground(), 3, penStyle );
 217
 218         // Get text colour as pen colour
 219         dc.SetPen( pen );
 220
 221         if ( !(flags & wxODCB_PAINTING_CONTROL) )
 222         {
 223             dc.DrawText(GetString( item ),
 224                         r.x + 3,
 225                         (r.y + 0) + ( (r.height/2) - dc.GetCharHeight() )/2
 226                        );
 227
 228             dc.DrawLine( r.x+5, r.y+((r.height/4)*3), r.x+r.width - 5, r.y+((r.height/4)*3) );
 229         }
 230         else
 231         {
 232             dc.DrawLine( r.x+5, r.y+r.height/2, r.x+r.width - 5, r.y+r.height/2 );
 233         }
 234     }
 235
 236     virtual void OnDrawBackground( wxDC& dc, const wxRect& rect,
 237                                    int item, int flags ) const
 238     {
 239
 240         // If item is selected or even, or we are painting the
 241         // combo control itself, use the default rendering.
 242         if ( (flags & (wxODCB_PAINTING_CONTROL|wxODCB_PAINTING_SELECTED)) ||
 243              (item & 1) == 0 )
 244         {
 245             wxOwnerDrawnComboBox::OnDrawBackground(dc,rect,item,flags);
 246             return;
 247         }
 248
 249         // Otherwise, draw every other background with different colour.
 250         wxColour bgCol(240,240,250);
 251         dc.SetBrush(wxBrush(bgCol));
 252         dc.SetPen(wxPen(bgCol));
 253         dc.DrawRectangle(rect);
 254     }
 255
 256     virtual wxCoord OnMeasureItem( size_t item ) const
 257     {
 258         // Simply demonstrate the ability to have variable-height items
 259         if ( item & 1 )
 260             return 36;
 261         else
 262             return 24;
 263     }
 264
 265     virtual wxCoord OnMeasureItemWidth( size_t WXUNUSED(item) ) const
 266     {
 267         return -1; // default - will be measured from text width
 268     }
 269
 270 };
 271
 272
 273 // ----------------------------------------------------------------------------
 274 // wxListView Custom popup interface
 275 // ----------------------------------------------------------------------------
 276
 277 #include <wx/listctrl.h>
 278
 279 class ListViewComboPopup : public wxListView, public wxComboPopup
 280 {
 281 public:
 282
 283     virtual void Init()
 284     {
 285         m_value = -1;
 286         m_itemHere = -1; // hot item in list
 287     }
 288
 289     virtual bool Create( wxWindow* parent )
 290     {
 291         return wxListView::Create(parent,1,
 292                                   wxPoint(0,0),wxDefaultSize,
 293                                   wxLC_LIST|wxLC_SINGLE_SEL|
 294                                   wxLC_SORT_ASCENDING|wxSIMPLE_BORDER);
 295     }
 296
 297     virtual wxWindow *GetControl() { return this; }
 298
 299     virtual void SetStringValue( const wxString& s )
 300     {
 301         int n = wxListView::FindItem(-1,s);
 302         if ( n >= 0 && n < GetItemCount() )
 303             wxListView::Select(n);
 304     }
 305
 306     virtual wxString GetStringValue() const
 307     {
 308         if ( m_value >= 0 )
 309             return wxListView::GetItemText(m_value);
 310         return wxEmptyString;
 311     }
 312
 313     //
 314     // Popup event handlers
 315     //
 316
 317     // Mouse hot-tracking
 318     void OnMouseMove(wxMouseEvent& event)
 319     {
 320         // Move selection to cursor if it is inside the popup
 321
 322         int resFlags;
 323         int itemHere = HitTest(event.GetPosition(),resFlags);
 324         if ( itemHere >= 0 )
 325         {
 326             wxListView::Select(itemHere,true);
 327             m_itemHere = itemHere;
 328         }
 329         event.Skip();
 330     }
 331
 332     // On mouse left, set the value and close the popup
 333     void OnMouseClick(wxMouseEvent& WXUNUSED(event))
 334     {
 335         m_value = m_itemHere;
 336         // TODO: Send event
 337         Dismiss();
 338     }
 339
 340     //
 341     // Utilies for item manipulation
 342     //
 343
 344     void AddSelection( const wxString& selstr )
 345     {
 346         wxListView::InsertItem(GetItemCount(),selstr);
 347     }
 348
 349 protected:
 350
 351     int             m_value; // current item index
 352     int             m_itemHere; // hot item in popup
 353
 354 private:
 355     DECLARE_EVENT_TABLE()
 356 };
 357
 358 BEGIN_EVENT_TABLE(ListViewComboPopup, wxListView)
 359     EVT_MOTION(ListViewComboPopup::OnMouseMove)
 360     // NOTE: Left down event is used instead of left up right now
 361     //       since MSW wxListCtrl doesn't seem to emit left ups
 362     //       consistently.
 363     EVT_LEFT_DOWN(ListViewComboPopup::OnMouseClick)
 364 END_EVENT_TABLE()
 365
 366
 367 // ----------------------------------------------------------------------------
 368 // wxTreeCtrl Custom popup interface
 369 // ----------------------------------------------------------------------------
 370
 371 #include <wx/treectrl.h>
 372
 373 class TreeCtrlComboPopup : public wxTreeCtrl, public wxComboPopup
 374 {
 375 public:
 376
 377     virtual void Init()
 378     {
 379     }
 380     virtual ~TreeCtrlComboPopup()
 381     {
 382         if (!m_isBeingDeleted)
 383         {
 384             wxMessageBox("error wxTreeCtrl::Destroy() was not called");
 385         }
 386         SendDestroyEvent();
 387     }
 388
 389     virtual bool Create( wxWindow* parent )
 390     {
 391         return wxTreeCtrl::Create(parent,1,
 392                                   wxPoint(0,0),wxDefaultSize,
 393                                   wxTR_DEFAULT_STYLE | wxTR_HIDE_ROOT | wxSIMPLE_BORDER );
 394     }
 395
 396     virtual void OnShow()
 397     {
 398         // make sure selected item is visible
 399         if ( m_value.IsOk() )
 400             EnsureVisible(m_value);
 401     }
 402
 403     virtual wxSize GetAdjustedSize( int minWidth,
 404                                     int WXUNUSED(prefHeight),
 405                                     int maxHeight )
 406     {
 407         return wxSize(wxMax(300,minWidth),wxMin(250,maxHeight));
 408     }
 409
 410     virtual wxWindow *GetControl() { return this; }
 411
 412     // Needed by SetStringValue
 413     wxTreeItemId FindItemByText( wxTreeItemId parent, const wxString& text )
 414     {
 415         wxTreeItemIdValue cookie;
 416         wxTreeItemId child = GetFirstChild(parent,cookie);
 417         while ( child.IsOk() )
 418         {
 419             if ( GetItemText(child) == text )
 420             {
 421                 return child;
 422             }
 423             if ( ItemHasChildren(child) )
 424             {
 425                 wxTreeItemId found = FindItemByText(child,text);
 426                 if ( found.IsOk() )
 427                     return found;
 428             }
 429             child = GetNextChild(parent,cookie);
 430         }
 431         return wxTreeItemId();
 432     }
 433
 434     virtual void SetStringValue( const wxString& s )
 435     {
 436         wxTreeItemId root = GetRootItem();
 437         if ( !root.IsOk() )
 438             return;
 439
 440         wxTreeItemId found = FindItemByText(root,s);
 441         if ( found.IsOk() )
 442         {
 443             m_value = m_itemHere = found;
 444             wxTreeCtrl::SelectItem(found);
 445         }
 446     }
 447
 448     virtual wxString GetStringValue() const
 449     {
 450         if ( m_value.IsOk() )
 451             return wxTreeCtrl::GetItemText(m_value);
 452         return wxEmptyString;
 453     }
 454
 455     //
 456     // Popup event handlers
 457     //
 458
 459     // Mouse hot-tracking
 460     void OnMouseMove(wxMouseEvent& event)
 461     {
 462         int resFlags;
 463         wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
 464         if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
 465         {
 466             wxTreeCtrl::SelectItem(itemHere,true);
 467             m_itemHere = itemHere;
 468         }
 469         event.Skip();
 470     }
 471
 472     // On mouse left, set the value and close the popup
 473     void OnMouseClick(wxMouseEvent& event)
 474     {
 475         int resFlags;
 476         wxTreeItemId itemHere = HitTest(event.GetPosition(),resFlags);
 477         if ( itemHere.IsOk() && (resFlags & wxTREE_HITTEST_ONITEMLABEL) )
 478         {
 479             m_itemHere = itemHere;
 480             m_value = itemHere;
 481             Dismiss();
 482             // TODO: Send event
 483         }
 484         event.Skip();
 485     }
 486
 487 protected:
 488
 489     wxTreeItemId        m_value; // current item index
 490     wxTreeItemId        m_itemHere; // hot item in popup
 491
 492 private:
 493     DECLARE_EVENT_TABLE()
 494 };
 495
 496 BEGIN_EVENT_TABLE(TreeCtrlComboPopup, wxTreeCtrl)
 497     EVT_MOTION(TreeCtrlComboPopup::OnMouseMove)
 498     // NOTE: Left down event is used instead of left up right now
 499     //       since MSW wxTreeCtrl doesn't seem to emit left ups
 500     //       consistently.
 501     EVT_LEFT_DOWN(TreeCtrlComboPopup::OnMouseClick)
 502 END_EVENT_TABLE()
 503
 504 // ----------------------------------------------------------------------------
 505 // wxComboCtrl with custom popup animation, using wxWindow::ShowWithEffect().
 506 // ----------------------------------------------------------------------------
 507
 508 class wxComboCtrlWithCustomPopupAnim : public wxComboCtrl
 509 {
 510 protected:
 511     virtual bool AnimateShow( const wxRect& rect, int WXUNUSED(flags) )
 512     {
 513         wxWindow* win = GetPopupWindow();
 514         win->SetSize(rect);
 515         win->Raise();  // This is needed
 516         win->ShowWithEffect(wxSHOW_EFFECT_BLEND);
 517         return true;
 518     }
 519 };
 520
 521 // ----------------------------------------------------------------------------
 522 // wxComboCtrl with entirely custom button action (opens file dialog)
 523 // ----------------------------------------------------------------------------
 524
 525 class wxFileSelectorCombo : public wxComboCtrl
 526 {
 527 public:
 528     wxFileSelectorCombo() : wxComboCtrl() { Init(); }
 529
 530     wxFileSelectorCombo(wxWindow *parent,
 531                         wxWindowID id = wxID_ANY,
 532                         const wxString& value = wxEmptyString,
 533                         const wxPoint& pos = wxDefaultPosition,
 534                         const wxSize& size = wxDefaultSize,
 535                         long style = 0,
 536                         const wxValidator& validator = wxDefaultValidator,
 537                         const wxString& name = wxComboBoxNameStr)
 538         : wxComboCtrl()
 539     {
 540         Init();
 541         Create(parent,id,value,
 542                pos,size,
 543                // Style flag wxCC_STD_BUTTON makes the button
 544                // behave more like a standard push button.
 545                style | wxCC_STD_BUTTON,
 546                validator,name);
 547
 548         //
 549         // Prepare custom button bitmap (just '...' text)
 550         wxMemoryDC dc;
 551         wxBitmap bmp(12,16);
 552         dc.SelectObject(bmp);
 553
 554         // Draw transparent background
 555         wxColour magic(255,0,255);
 556         wxBrush magicBrush(magic);
 557         dc.SetBrush( magicBrush );
 558         dc.SetPen( *wxTRANSPARENT_PEN );
 559         dc.DrawRectangle(0,0,bmp.GetWidth(),bmp.GetHeight());
 560
 561         // Draw text
 562         wxString str = wxT("...");
 563         int w,h;
 564         dc.GetTextExtent(str, &w, &h, 0, 0);
 565         dc.DrawText(str, (bmp.GetWidth()-w)/2, (bmp.GetHeight()-h)/2);
 566
 567         dc.SelectObject( wxNullBitmap );
 568
 569         // Finalize transparency with a mask
 570         wxMask *mask = new wxMask( bmp, magic );
 571         bmp.SetMask( mask );
 572
 573         SetButtonBitmaps(bmp,true);
 574     }
 575
 576     virtual void OnButtonClick()
 577     {
 578         // Show standard wxFileDialog on button click
 579
 580         wxFileDialog dlg(this,
 581                          wxT("Choose File"),
 582                          wxEmptyString,
 583                          GetValue(),
 584                          wxT("All files (*.*)|*.*"),
 585                          wxFD_OPEN);
 586
 587         if ( dlg.ShowModal() == wxID_OK )
 588         {
 589             SetValue(dlg.GetPath());
 590         }
 591     }
 592
 593     // Implement empty DoSetPopupControl to prevent assertion failure.
 594     virtual void DoSetPopupControl(wxComboPopup* WXUNUSED(popup))
 595     {
 596     }
 597
 598 private:
 599     void Init()
 600     {
 601         // Initialize member variables here
 602     }
 603 };
 604
 605 // ----------------------------------------------------------------------------
 606 // main frame
 607 // ----------------------------------------------------------------------------
 608
 609 // frame constructor
 610 MyFrame::MyFrame(const wxString& title)
 611        : wxFrame(NULL, wxID_ANY, title)
 612 {
 613     wxBoxSizer* topSizer;
 614     wxBoxSizer* topRowSizer;
 615     wxBoxSizer* colSizer;
 616     wxBoxSizer* rowSizer;
 617
 618     // set the frame icon
 619     SetIcon(wxICON(sample));
 620
 621 #if wxUSE_MENUS
 622     // create a menu bar
 623     wxMenu *fileMenu = new wxMenu;
 624
 625     // the "About" item should be in the help menu
 626     wxMenu *helpMenu = new wxMenu;
 627     helpMenu->Append(ComboCtrl_About, wxT("&About...\tF1"), wxT("Show about dialog"));
 628
 629     fileMenu->Append(ComboCtrl_Compare, wxT("&Compare against wxComboBox..."),
 630         wxT("Show some wxOwnerDrawnComboBoxes side-by-side with native wxComboBoxes."));
 631     fileMenu->AppendSeparator();
 632     fileMenu->Append(ComboCtrl_Quit, wxT("E&xit\tAlt-X"), wxT("Quit this program"));
 633
 634     // now append the freshly created menu to the menu bar...
 635     wxMenuBar *menuBar = new wxMenuBar();
 636     menuBar->Append(fileMenu, wxT("&File"));
 637     menuBar->Append(helpMenu, wxT("&Help"));
 638
 639     // ... and attach this menu bar to the frame
 640     SetMenuBar(menuBar);
 641 #endif // wxUSE_MENUS
 642
 643     wxPanel* panel = new wxPanel(this);
 644
 645     // Prepare log window right away since it shows EVT_TEXTs
 646     m_logWin = new wxTextCtrl(panel, 105, wxEmptyString,
 647                               wxDefaultPosition,
 648                               wxSize(-1, 125),
 649                               wxTE_MULTILINE);
 650     wxLogTextCtrl* logger = new wxLogTextCtrl(m_logWin);
 651     m_logOld = logger->SetActiveTarget(logger);
 652     logger->DisableTimestamp();
 653
 654
 655     topSizer = new wxBoxSizer( wxVERTICAL );
 656
 657     topRowSizer = new wxBoxSizer( wxHORIZONTAL );
 658
 659     colSizer = new wxBoxSizer( wxVERTICAL );
 660
 661
 662     wxComboCtrl* cc;
 663     wxGenericComboCtrl* gcc;
 664     wxOwnerDrawnComboBox* odc;
 665
 666     // Create common strings array
 667     m_arrItems.Add( wxT("Solid") );
 668     m_arrItems.Add( wxT("Transparent") );
 669     m_arrItems.Add( wxT("Dot") );
 670     m_arrItems.Add( wxT("Long Dash") );
 671     m_arrItems.Add( wxT("Short Dash") );
 672     m_arrItems.Add( wxT("Dot Dash") );
 673     m_arrItems.Add( wxT("Backward Diagonal Hatch") );
 674     m_arrItems.Add( wxT("Cross-diagonal Hatch") );
 675     m_arrItems.Add( wxT("Forward Diagonal Hatch") );
 676     m_arrItems.Add( wxT("Cross Hatch") );
 677     m_arrItems.Add( wxT("Horizontal Hatch") );
 678     m_arrItems.Add( wxT("Vertical Hatch") );
 679
 680
 681     //
 682     // Create pen selector ODComboBox with owner-drawn items
 683     //
 684     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 685     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 686                    wxT("OwnerDrawnComboBox with owner-drawn items:")), 1,
 687                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 688     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 689
 690     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 691
 692
 693     // When defining derivative class for callbacks, we need
 694     // to use two-stage creation (or redefine the common wx
 695     // constructor).
 696     odc = new wxPenStyleComboBox();
 697     odc->Create(panel,wxID_ANY,wxEmptyString,
 698                 wxDefaultPosition, wxDefaultSize,
 699                 m_arrItems,
 700                 wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
 701                );
 702
 703
 704     odc->SetSelection(0);
 705
 706     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 707     rowSizer->AddStretchSpacer(1);
 708     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 709
 710
 711
 712     //
 713     // Same but with changed button position
 714     //
 715     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 716     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 717                    wxT("OwnerDrawnComboBox with owner-drawn items and button on the left:")), 1,
 718                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 719     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 720
 721     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 722
 723
 724     // When defining derivative class for callbacks, we need
 725     // to use two-stage creation (or redefine the common wx
 726     // constructor).
 727     odc = new wxPenStyleComboBox();
 728     odc->Create(panel,wxID_ANY,wxEmptyString,
 729                 wxDefaultPosition, wxDefaultSize,
 730                 m_arrItems,
 731                 wxCB_READONLY //wxNO_BORDER | wxCB_READONLY
 732                );
 733
 734
 735     odc->SetSelection(0);
 736
 737     // Use button size that is slightly smaller than the default.
 738     wxSize butSize = odc->GetButtonSize();
 739     odc->SetButtonPosition(butSize.x - 2, // button width
 740                            butSize.y - 6, // button height
 741                            wxLEFT, // side
 742                            2 // horizontal spacing
 743                           );
 744
 745     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 746     rowSizer->AddStretchSpacer(1);
 747     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 748
 749
 750     //
 751     // List View wxComboCtrl
 752     //
 753
 754     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 755     rowSizer->Add( new wxStaticText(panel,
 756                         wxID_ANY,
 757                         "List View wxComboCtrl (custom animation):"),
 758                    1, wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 759     rowSizer->Add( new wxStaticText(panel,wxID_ANY,wxT("Tree Ctrl wxComboCtrl:")), 1,
 760                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 761     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 762
 763     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 764     cc = new wxComboCtrlWithCustomPopupAnim();
 765
 766     // Let's set a custom style for the contained wxTextCtrl. We need to
 767     // use two-step creation for it to work properly.
 768     cc->SetTextCtrlStyle(wxTE_RIGHT);
 769
 770     cc->Create(panel, wxID_ANY, wxEmptyString);
 771
 772     // Make sure we use popup that allows focusing the listview.
 773     cc->UseAltPopupWindow();
 774
 775     cc->SetPopupMinWidth(300);
 776
 777     ListViewComboPopup* iface = new ListViewComboPopup();
 778     cc->SetPopupControl(iface);
 779
 780     int i;
 781     for ( i=0; i<100; i++ )
 782         iface->AddSelection( wxString::Format(wxT("Item %02i"),i));
 783
 784     rowSizer->Add( cc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 785
 786
 787     //
 788     // Tree Ctrl wxComboCtrl
 789     //
 790
 791     // Note that we test that wxGenericComboCtrl works
 792     gcc = new wxGenericComboCtrl(panel,wxID_ANY,wxEmptyString,
 793                                  wxDefaultPosition, wxDefaultSize);
 794
 795     // Make sure we use popup that allows focusing the treectrl.
 796     gcc->UseAltPopupWindow();
 797
 798     // Set popup interface right away, otherwise some of the calls
 799     // below may fail
 800     TreeCtrlComboPopup* tcPopup = new TreeCtrlComboPopup();
 801     gcc->SetPopupControl(tcPopup);
 802
 803     // Add items using wxTreeCtrl methods directly
 804     wxTreeItemId rootId = tcPopup->AddRoot(wxT("<hidden_root>"));
 805
 806     wxTreeItemId groupId;
 807
 808     for ( i=0; i<4; i++ )
 809     {
 810         groupId = tcPopup->AppendItem(rootId,
 811             wxString::Format(wxT("Branch %02i"),i));
 812
 813         int n;
 814         for ( n=0; n<25; n++ )
 815             tcPopup->AppendItem(groupId,
 816                 wxString::Format(wxT("Subitem %02i"),(i*25)+n));
 817     }
 818
 819     gcc->SetValue(wxT("Subitem 05"));
 820
 821     // Move button to left - it makes more sense for a tree ctrl
 822     gcc->SetButtonPosition(-1, // button width
 823                            -1, // button height
 824                            wxLEFT, // side
 825                            0 // horizontal spacing
 826                           );
 827
 828     rowSizer->Add( gcc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 5 );
 829
 830     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 831
 832 #if wxUSE_IMAGE
 833     wxInitAllImageHandlers();
 834
 835     //
 836     // Custom Dropbutton Bitmaps
 837     // (second one uses blank button background)
 838     //
 839     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 840     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 841                    wxT("OwnerDrawnComboBox with simple dropbutton graphics:")), 1,
 842                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 843
 844     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 845
 846     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 847
 848     odc = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
 849                                    wxDefaultPosition, wxDefaultSize,
 850                                    m_arrItems,
 851                                    (long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
 852                                   );
 853
 854     wxOwnerDrawnComboBox* odc2;
 855     odc2 = new wxOwnerDrawnComboBox(panel,wxID_ANY,wxEmptyString,
 856                                     wxDefaultPosition, wxDefaultSize,
 857                                     m_arrItems,
 858                                     (long)0 // wxCB_SORT // wxNO_BORDER | wxCB_READONLY
 859                                    );
 860
 861     // Load images from disk
 862     wxImage imgNormal(wxT("dropbutn.png"));
 863     wxImage imgPressed(wxT("dropbutp.png"));
 864     wxImage imgHover(wxT("dropbuth.png"));
 865
 866     if ( imgNormal.IsOk() && imgPressed.IsOk() && imgHover.IsOk() )
 867     {
 868         wxBitmap bmpNormal(imgNormal);
 869         wxBitmap bmpPressed(imgPressed);
 870         wxBitmap bmpHover(imgHover);
 871         odc->SetButtonBitmaps(bmpNormal,false,bmpPressed,bmpHover);
 872         odc2->SetButtonBitmaps(bmpNormal,true,bmpPressed,bmpHover);
 873     }
 874     else
 875         wxLogError(wxT("Dropbutton images not found"));
 876
 877     //odc2->SetButtonPosition(0, // width adjustment
 878     //                        0, // height adjustment
 879     //                        wxLEFT, // side
 880     //                        0 // horizontal spacing
 881     //                       );
 882
 883     rowSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 884     rowSizer->Add( odc2, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 885     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 886 #endif
 887
 888
 889     //
 890     // wxComboCtrl with totally custom button action (open file dialog)
 891     //
 892     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 893     rowSizer->Add( new wxStaticText(panel,wxID_ANY,
 894                         wxT("wxComboCtrl with custom button action:")), 1,
 895                    wxALIGN_CENTER_VERTICAL|wxRIGHT, 4 );
 896
 897
 898     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 899
 900     rowSizer = new wxBoxSizer( wxHORIZONTAL );
 901     wxFileSelectorCombo* fsc;
 902
 903     fsc = new wxFileSelectorCombo(panel,wxID_ANY,wxEmptyString,
 904                                   wxDefaultPosition, wxDefaultSize,
 905                                   (long)0
 906                                  );
 907
 908     rowSizer->Add( fsc, 1, wxALIGN_CENTER_VERTICAL|wxALL, 4 );
 909     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 910
 911
 912     // Make sure GetFeatures is implemented
 913     wxComboCtrl::GetFeatures();
 914
 915
 916     topRowSizer->Add( colSizer, 1, wxALL, 2 );
 917
 918     colSizer = new wxBoxSizer( wxVERTICAL );
 919
 920     colSizer->AddSpacer(8);
 921     colSizer->Add( new wxStaticText(panel, wxID_ANY, wxT("Log Messages:")), 0, wxTOP|wxLEFT, 3 );
 922     colSizer->Add( m_logWin, 1, wxEXPAND|wxALL, 3 );
 923
 924     topRowSizer->Add( colSizer, 1, wxEXPAND|wxALL, 2 );
 925     topSizer->Add( topRowSizer, 1, wxEXPAND );
 926
 927     panel->SetSizer( topSizer );
 928     topSizer->SetSizeHints( panel );
 929
 930     SetSize(740,400);
 931     Centre();
 932 }
 933
 934 // event handlers
 935
 936 void MyFrame::OnComboBoxUpdate( wxCommandEvent& event )
 937 {
 938     // Don't show messages for the log output window (it'll crash)
 939     if ( !event.GetEventObject()->IsKindOf(CLASSINFO(wxComboCtrl)) )
 940         return;
 941
 942     if ( event.GetEventType() == wxEVT_COMMAND_COMBOBOX_SELECTED )
 943     {
 944         wxLogDebug(wxT("EVT_COMBOBOX(id=%i,selection=%i)"),event.GetId(),event.GetSelection());
 945     }
 946     else if ( event.GetEventType() == wxEVT_COMMAND_TEXT_UPDATED )
 947     {
 948         wxLogDebug(wxT("EVT_TEXT(id=%i,string=\"%s\")"),event.GetId(),event.GetString().c_str());
 949     }
 950     else if ( event.GetEventType() == wxEVT_COMMAND_TEXT_ENTER )
 951     {
 952         wxLogDebug("EVT_TEXT_ENTER(id=%i,string=\"%s\")",
 953                    event.GetId(), event.GetString().c_str());
 954     }
 955 }
 956
 957 void MyFrame::OnShowComparison( wxCommandEvent& WXUNUSED(event) )
 958 {
 959     //
 960     // Show some wxOwnerDrawComboBoxes for comparison
 961     //
 962
 963     wxBoxSizer* colSizer;
 964     wxBoxSizer* rowSizer;
 965     wxStaticBoxSizer* groupSizer;
 966
 967     wxComboBox* cb;
 968     wxOwnerDrawnComboBox* odc;
 969
 970     const int border = 4;
 971
 972     wxDialog* dlg = new wxDialog(this,wxID_ANY,
 973                                  wxT("Compare against wxComboBox"),
 974                                  wxDefaultPosition,wxDefaultSize,
 975                                  wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER);
 976
 977     colSizer = new wxBoxSizer( wxVERTICAL );
 978
 979     rowSizer = new wxBoxSizer(wxHORIZONTAL);
 980
 981     groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY,wxT(" wxOwnerDrawnComboBox ")),
 982                                       wxVERTICAL);
 983
 984     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Writable, sorted:")), 0,
 985                      wxALIGN_CENTER_VERTICAL|wxRIGHT|wxEXPAND, border );
 986
 987     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
 988                                    wxDefaultPosition, wxDefaultSize,
 989                                    m_arrItems,
 990                                    wxCB_SORT // wxNO_BORDER|wxCB_READONLY
 991                                   );
 992
 993     odc->Append(wxT("H - Appended Item")); // test sorting in append
 994
 995     odc->SetValue(wxT("Dot Dash"));
 996
 997     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
 998
 999     //
1000     // Readonly ODComboBox
1001     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Read-only:")), 0,
1002                      wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
1003
1004     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
1005                                    wxDefaultPosition, wxDefaultSize,
1006                                    m_arrItems,
1007                                    wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
1008                                   );
1009
1010     odc->SetValue(wxT("Dot Dash"));
1011     odc->SetText(wxT("Dot Dash (Testing SetText)"));
1012
1013     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1014
1015     //
1016     // Disabled ODComboBox
1017     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Disabled:")), 0,
1018                    wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
1019
1020     odc = new wxOwnerDrawnComboBox(dlg,wxID_ANY,wxEmptyString,
1021                                      wxDefaultPosition, wxDefaultSize,
1022                                      m_arrItems,
1023                                      wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
1024                                      );
1025
1026     odc->SetValue(wxT("Dot Dash"));
1027     odc->Enable(false);
1028
1029     groupSizer->Add( odc, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1030
1031     rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
1032
1033
1034     groupSizer = new wxStaticBoxSizer(new wxStaticBox(dlg,wxID_ANY,wxT(" wxComboBox ")),
1035                                       wxVERTICAL);
1036
1037     //
1038     // wxComboBox
1039     //
1040     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Writable, sorted:")), 0,
1041                      wxALIGN_CENTER_VERTICAL|wxRIGHT|wxEXPAND, border );
1042
1043     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
1044                         wxDefaultPosition, wxDefaultSize,
1045                         m_arrItems,
1046                         wxCB_SORT // wxNO_BORDER|wxCB_READONLY
1047                        );
1048
1049     cb->Append(wxT("H - Appended Item")); // test sorting in append
1050
1051     cb->SetValue(wxT("Dot Dash"));
1052
1053     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1054
1055     //
1056     // Readonly wxComboBox
1057     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Read-only:")), 0,
1058                      wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
1059
1060     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
1061                         wxDefaultPosition, wxDefaultSize,
1062                         m_arrItems,
1063                         wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
1064                        );
1065
1066     cb->SetValue(wxT("Dot Dash"));
1067
1068     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1069
1070     //
1071     // Disabled wxComboBox
1072     groupSizer->Add( new wxStaticText(dlg,wxID_ANY,wxT("Disabled:")), 0,
1073                    wxALIGN_CENTER_VERTICAL|wxRIGHT, border );
1074
1075     cb = new wxComboBox(dlg,wxID_ANY,wxEmptyString,
1076                         wxDefaultPosition, wxDefaultSize,
1077                         m_arrItems,
1078                         wxCB_SORT|wxCB_READONLY // wxNO_BORDER|wxCB_READONLY
1079                        );
1080
1081     cb->SetValue(wxT("Dot Dash"));
1082     cb->Enable(false);
1083
1084     groupSizer->Add( cb, 1, wxALIGN_CENTER_VERTICAL|wxEXPAND|wxALL, border );
1085
1086     rowSizer->Add( groupSizer, 1, wxEXPAND|wxALL, border );
1087
1088     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, border );
1089
1090     dlg->SetSizer( colSizer );
1091     colSizer->SetSizeHints( dlg );
1092
1093     dlg->SetSize(60,240);
1094     dlg->Centre();
1095     dlg->ShowModal();
1096 }
1097
1098 MyFrame::~MyFrame()
1099 {
1100     delete wxLog::SetActiveTarget(m_logOld);
1101 }
1102
1103 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
1104 {
1105     // true is to force the frame to close
1106     Close(true);
1107 }
1108
1109 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
1110 {
1111     wxMessageBox(wxString::Format(
1112                     wxT("Welcome to %s!\n")
1113                     wxT("\n")
1114                     wxT("This is the wxWidgets wxComboCtrl and wxOwnerDrawnComboBox sample\n")
1115                     wxT("running under %s."),
1116                     wxVERSION_STRING,
1117                     wxGetOsDescription().c_str()
1118                  ),
1119                  wxT("About wxComboCtrl sample"),
1120                  wxOK | wxICON_INFORMATION,
1121                  this);
1122 }
1123
1124 void MyFrame::OnIdle(wxIdleEvent& event)
1125 {
1126     // This code is useful for debugging focus problems
1127     // (which are plentiful when dealing with popup windows).
1128 #if 0
1129     static wxWindow* lastFocus = (wxWindow*) NULL;
1130
1131     wxWindow* curFocus = ::wxWindow::FindFocus();
1132
1133     if ( curFocus != lastFocus )
1134     {
1135         const wxChar* className = wxT("<none>");
1136         if ( curFocus )
1137             className = curFocus->GetClassInfo()->GetClassName();
1138         lastFocus = curFocus;
1139         wxLogDebug( wxT("FOCUSED: %s %X"),
1140             className,
1141             (unsigned int)curFocus);
1142     }
1143 #endif
1144
1145     event.Skip();
1146 }