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