src/common/dlgcmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        common/dlgcmn.cpp
   3 // Purpose:     common (to all ports) wxDialog functions
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.06.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "dialogbase.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/button.h"
  33     #include "wx/dialog.h"
  34     #include "wx/dcclient.h"
  35     #include "wx/intl.h"
  36     #include "wx/settings.h"
  37     #include "wx/stattext.h"
  38     #include "wx/sizer.h"
  39     #include "wx/button.h"
  40     #include "wx/containr.h"
  41 #endif
  42
  43 //--------------------------------------------------------------------------
  44 // wxDialogBase
  45 //--------------------------------------------------------------------------
  46
  47 // FIXME - temporary hack in absence of wxtopLevelWindow, should be always used
  48 #ifdef wxTopLevelWindowNative
  49 BEGIN_EVENT_TABLE(wxDialogBase, wxTopLevelWindow)
  50     WX_EVENT_TABLE_CONTROL_CONTAINER(wxDialogBase)
  51 END_EVENT_TABLE()
  52
  53 WX_DELEGATE_TO_CONTROL_CONTAINER(wxDialogBase)
  54 #endif
  55
  56 wxDialogBase::wxDialogBase()
  57 {
  58     Init();
  59 }
  60
  61 void wxDialogBase::Init()
  62 {
  63     m_returnCode = 0;
  64
  65     // the dialogs have this flag on by default to prevent the events from the
  66     // dialog controls from reaching the parent frame which is usually
  67     // undesirable and can lead to unexpected and hard to find bugs
  68     SetExtraStyle(GetExtraStyle() | wxWS_EX_BLOCK_EVENTS);
  69
  70 #ifdef wxTopLevelWindowNative // FIXME - temporary hack, should be always used!
  71     m_container.SetContainerWindow(this);
  72 #endif
  73 }
  74
  75 #if wxUSE_STATTEXT // && wxUSE_TEXTCTRL
  76
  77 wxSizer *wxDialogBase::CreateTextSizer( const wxString& message )
  78 {
  79     bool is_pda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
  80
  81     wxString text = message;
  82
  83     // I admit that this is complete bogus, but it makes
  84     // message boxes work for pda screens temporarily..
  85     int max_width = -1;
  86     if (is_pda)
  87     {
  88         max_width = wxSystemSettings::GetMetric( wxSYS_SCREEN_X ) - 25;
  89         text += wxT('\n');
  90     }
  91
  92
  93     wxBoxSizer *box = new wxBoxSizer( wxVERTICAL );
  94
  95     // get line height for empty lines
  96     int y = 0;
  97     wxFont font( GetFont() );
  98     if (!font.Ok())
  99         font = *wxSWISS_FONT;
 100     GetTextExtent( wxT("H"), (int*)NULL, &y, (int*)NULL, (int*)NULL, &font);
 101
 102     size_t last_space = 0;
 103     wxString line;
 104     for ( size_t pos = 0; pos < text.length(); pos++ )
 105     {
 106         switch ( text[pos] )
 107         {
 108             case wxT('\n'):
 109                 if (!line.IsEmpty())
 110                 {
 111                     wxStaticText *s = new wxStaticText( this, -1, line );
 112                     box->Add( s );
 113                     line = wxT("");
 114                 }
 115                 else
 116                 {
 117                     box->Add( 5, y );
 118                 }
 119                 break;
 120
 121             case wxT('&'):
 122                 // this is used as accel mnemonic prefix in the wxWindows
 123                 // controls but in the static messages created by
 124                 // CreateTextSizer() (used by wxMessageBox, for example), we
 125                 // don't want this special meaning, so we need to quote it
 126                 line += wxT('&');
 127
 128                 // fall through to add it normally too
 129
 130             default:
 131                 if (text[pos] == wxT(' '))
 132                     last_space = pos;
 133
 134                 line += message[pos];
 135
 136                 if (is_pda)
 137                 {
 138                     int width = 0;
 139                     GetTextExtent( line, &width, (int*)NULL, (int*)NULL, (int*)NULL, &font );
 140
 141                     if (width > max_width)
 142                     {
 143                         // exception if there was no previous space
 144                         if (last_space == 0)
 145                             last_space = pos;
 146
 147                         int diff = pos-last_space;
 148                         int len = line.Len();
 149                         line.Remove( len-diff, diff );
 150
 151                         wxStaticText *s = new wxStaticText( this, -1, line );
 152                         box->Add( s );
 153
 154                         pos = last_space;
 155                         last_space = 0;
 156                         line = wxT("");
 157                     }
 158                 }
 159         }
 160     }
 161
 162     // remaining text behind last '\n'
 163     if (!line.IsEmpty())
 164     {
 165         wxStaticText *s2 = new wxStaticText( this, -1, line );
 166         box->Add( s2 );
 167     }
 168
 169     return box;
 170 }
 171
 172 #endif // wxUSE_STATTEXT // && wxUSE_TEXTCTRL
 173
 174 #if wxUSE_BUTTON
 175
 176 wxSizer *wxDialogBase::CreateButtonSizer( long flags )
 177 {
 178     bool is_pda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
 179
 180     // If we have a PDA screen, put yes/no button over
 181     // all other buttons, otherwise on the left side.
 182     wxBoxSizer *box = is_pda ? new wxBoxSizer( wxVERTICAL ) : new wxBoxSizer( wxHORIZONTAL );
 183
 184     wxBoxSizer *inner_yes_no = NULL;
 185
 186     // Only create sizer containing yes/no
 187     // if it is actually required
 188     if ( (flags & wxYES_NO) != 0 )
 189     {
 190         inner_yes_no = new wxBoxSizer( wxHORIZONTAL );
 191         box->Add( inner_yes_no, 0, wxBOTTOM, 10 );
 192     }
 193
 194     wxBoxSizer *inner_rest = new wxBoxSizer( wxHORIZONTAL );
 195     box->Add( inner_rest, 0, 0, 0 );
 196
 197 #if defined(__WXMSW__) || defined(__WXMAC__)
 198     static const int margin = 6;
 199 #else
 200     static const int margin = 10;
 201 #endif
 202
 203     wxButton *ok = (wxButton *) NULL;
 204     wxButton *cancel = (wxButton *) NULL;
 205     wxButton *yes = (wxButton *) NULL;
 206     wxButton *no = (wxButton *) NULL;
 207
 208     // always show an OK button, unless we have both YES and NO
 209     if ( (flags & wxYES_NO) != wxYES_NO )
 210         flags |= wxOK;
 211
 212     if (flags & wxYES)
 213     {
 214         yes = new wxButton( this, wxID_YES, _("Yes"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS );
 215         inner_yes_no->Add( yes, 0, wxLEFT|wxRIGHT, margin );
 216     }
 217     if (flags & wxNO)
 218     {
 219         no = new wxButton( this, wxID_NO, _("No"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS );
 220         inner_yes_no->Add( no, 0, wxLEFT|wxRIGHT, margin );
 221     }
 222
 223     if (flags & wxOK)
 224     {
 225         ok = new wxButton( this, wxID_OK, _("OK"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS );
 226         inner_rest->Add( ok, 0, wxLEFT|wxRIGHT, margin );
 227     }
 228
 229     if (flags & wxFORWARD)
 230         inner_rest->Add( new wxButton( this, wxID_FORWARD, _("Forward"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS  ), 0, wxLEFT|wxRIGHT, margin );
 231
 232     if (flags & wxBACKWARD)
 233         inner_rest->Add( new wxButton( this, wxID_BACKWARD, _("Backward"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS  ), 0, wxLEFT|wxRIGHT, margin );
 234
 235     if (flags & wxSETUP)
 236         inner_rest->Add( new wxButton( this, wxID_SETUP, _("Setup"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS  ), 0, wxLEFT|wxRIGHT, margin );
 237
 238     if (flags & wxMORE)
 239         inner_rest->Add( new wxButton( this, wxID_MORE, _("More..."),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS  ), 0, wxLEFT|wxRIGHT, margin );
 240
 241     if (flags & wxHELP)
 242         inner_rest->Add( new wxButton( this, wxID_HELP, _("Help"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS  ), 0, wxLEFT|wxRIGHT, margin );
 243
 244     if (flags & wxCANCEL)
 245     {
 246         cancel = new wxButton( this, wxID_CANCEL, _("Cancel"),wxDefaultPosition,wxDefaultSize,wxCLIP_SIBLINGS );
 247         inner_rest->Add( cancel, 0, wxLEFT|wxRIGHT, margin );
 248     }
 249
 250     // choose the default button
 251     if (flags & wxNO_DEFAULT)
 252     {
 253         if (no)
 254         {
 255             no->SetDefault();
 256             no->SetFocus();
 257         }
 258     }
 259     else
 260     {
 261         if (ok)
 262         {
 263             ok->SetDefault();
 264             ok->SetFocus();
 265         }
 266         else if (yes)
 267         {
 268             yes->SetDefault();
 269             yes->SetFocus();
 270         }
 271     }
 272
 273     return box;
 274 }
 275
 276 #endif // wxUSE_BUTTON