src/common/ctrlcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/ctrlcmn.cpp
   3 // Purpose:     wxControl common interface
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     26.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_CONTROLS
  28
  29 #include "wx/control.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/log.h"
  33     #include "wx/radiobut.h"
  34     #include "wx/statbmp.h"
  35     #include "wx/bitmap.h"
  36     #include "wx/utils.h"       // for wxStripMenuCodes()
  37 #endif
  38
  39 const char wxControlNameStr[] = "control";
  40
  41 // ============================================================================
  42 // implementation
  43 // ============================================================================
  44
  45 wxControlBase::~wxControlBase()
  46 {
  47     // this destructor is required for Darwin
  48 }
  49
  50 bool wxControlBase::Create(wxWindow *parent,
  51                            wxWindowID id,
  52                            const wxPoint &pos,
  53                            const wxSize &size,
  54                            long style,
  55                            const wxValidator& wxVALIDATOR_PARAM(validator),
  56                            const wxString &name)
  57 {
  58     bool ret = wxWindow::Create(parent, id, pos, size, style, name);
  59
  60 #if wxUSE_VALIDATORS
  61     if ( ret )
  62         SetValidator(validator);
  63 #endif // wxUSE_VALIDATORS
  64
  65     return ret;
  66 }
  67
  68 bool wxControlBase::CreateControl(wxWindowBase *parent,
  69                                   wxWindowID id,
  70                                   const wxPoint& pos,
  71                                   const wxSize& size,
  72                                   long style,
  73                                   const wxValidator& validator,
  74                                   const wxString& name)
  75 {
  76     // even if it's possible to create controls without parents in some port,
  77     // it should surely be discouraged because it doesn't work at all under
  78     // Windows
  79     wxCHECK_MSG( parent, false, wxT("all controls must have parents") );
  80
  81     if ( !CreateBase(parent, id, pos, size, style, validator, name) )
  82         return false;
  83
  84     parent->AddChild(this);
  85
  86     return true;
  87 }
  88
  89 /* static */
  90 wxString wxControlBase::GetLabelText(const wxString& label)
  91 {
  92     // we don't want strip the TABs here, just the mnemonics
  93     return wxStripMenuCodes(label, wxStrip_Mnemonics);
  94 }
  95
  96 void wxControlBase::Command(wxCommandEvent& event)
  97 {
  98     (void)GetEventHandler()->ProcessEvent(event);
  99 }
 100
 101 void wxControlBase::InitCommandEvent(wxCommandEvent& event) const
 102 {
 103     event.SetEventObject((wxControlBase *)this);    // const_cast
 104
 105     // event.SetId(GetId()); -- this is usuall done in the event ctor
 106
 107     switch ( m_clientDataType )
 108     {
 109         case wxClientData_Void:
 110             event.SetClientData(GetClientData());
 111             break;
 112
 113         case wxClientData_Object:
 114             event.SetClientObject(GetClientObject());
 115             break;
 116
 117         case wxClientData_None:
 118             // nothing to do
 119             ;
 120     }
 121 }
 122
 123 bool wxControlBase::SetFont(const wxFont& font)
 124 {
 125     InvalidateBestSize();
 126     return wxWindow::SetFont(font);
 127 }
 128
 129 // wxControl-specific processing after processing the update event
 130 void wxControlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
 131 {
 132     // call inherited
 133     wxWindowBase::DoUpdateWindowUI(event);
 134
 135     // update label
 136     if ( event.GetSetText() )
 137     {
 138         if ( event.GetText() != GetLabel() )
 139             SetLabel(event.GetText());
 140     }
 141
 142     // Unfortunately we don't yet have common base class for
 143     // wxRadioButton, so we handle updates of radiobuttons here.
 144     // TODO: If once wxRadioButtonBase will exist, move this code there.
 145 #if wxUSE_RADIOBTN
 146     if ( event.GetSetChecked() )
 147     {
 148         wxRadioButton *radiobtn = wxDynamicCastThis(wxRadioButton);
 149         if ( radiobtn )
 150             radiobtn->SetValue(event.GetChecked());
 151     }
 152 #endif // wxUSE_RADIOBTN
 153 }
 154
 155 /* static */
 156 wxString wxControlBase::RemoveMnemonics(const wxString& str)
 157 {
 158     return wxStripMenuCodes(str, wxStrip_Mnemonics);
 159 }
 160
 161 /* static */
 162 int wxControlBase::FindAccelIndex(const wxString& label, wxString *labelOnly)
 163 {
 164     // the character following MNEMONIC_PREFIX is the accelerator for this
 165     // control unless it is MNEMONIC_PREFIX too - this allows to insert
 166     // literal MNEMONIC_PREFIX chars into the label
 167     static const wxChar MNEMONIC_PREFIX = _T('&');
 168
 169     if ( labelOnly )
 170     {
 171         labelOnly->Empty();
 172         labelOnly->Alloc(label.length());
 173     }
 174
 175     int indexAccel = -1;
 176     for ( wxString::const_iterator pc = label.begin(); pc != label.end(); ++pc )
 177     {
 178         if ( *pc == MNEMONIC_PREFIX )
 179         {
 180             ++pc; // skip it
 181             if ( pc == label.end() )
 182                 break;
 183             else if ( *pc != MNEMONIC_PREFIX )
 184             {
 185                 if ( indexAccel == -1 )
 186                 {
 187                     // remember it (-1 is for MNEMONIC_PREFIX itself
 188                     indexAccel = pc - label.begin() - 1;
 189                 }
 190                 else
 191                 {
 192                     wxFAIL_MSG(_T("duplicate accel char in control label"));
 193                 }
 194             }
 195         }
 196
 197         if ( labelOnly )
 198         {
 199             *labelOnly += *pc;
 200         }
 201     }
 202
 203     return indexAccel;
 204 }
 205
 206 wxBorder wxControlBase::GetDefaultBorder() const
 207 {
 208     return wxBORDER_THEME;
 209 }
 210
 211
 212 // ----------------------------------------------------------------------------
 213 // wxStaticBitmap
 214 // ----------------------------------------------------------------------------
 215
 216 #if wxUSE_STATBMP
 217
 218 wxStaticBitmapBase::~wxStaticBitmapBase()
 219 {
 220     // this destructor is required for Darwin
 221 }
 222
 223 wxSize wxStaticBitmapBase::DoGetBestSize() const
 224 {
 225     wxSize best;
 226     wxBitmap bmp = GetBitmap();
 227     if ( bmp.Ok() )
 228         best = wxSize(bmp.GetWidth(), bmp.GetHeight());
 229     else
 230         // this is completely arbitrary
 231         best = wxSize(16, 16);
 232     CacheBestSize(best);
 233     return best;
 234 }
 235
 236 #endif // wxUSE_STATBMP
 237
 238 #endif // wxUSE_CONTROLS