src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "textctrl.h"
  13 #endif
  14
  15 #include "wx/textctrl.h"
  16 #include "wx/utils.h"
  17
  18 //-----------------------------------------------------------------------------
  19 //  wxTextCtrl
  20 //-----------------------------------------------------------------------------
  21
  22 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl)
  23
  24 void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win )
  25 {
  26   win->SetModified();
  27 };
  28
  29
  30 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
  31 //  EVT_CHAR(wxTextCtrl::OnChar)
  32 END_EVENT_TABLE()
  33
  34 wxTextCtrl::wxTextCtrl(void) : streambuf()
  35 {
  36     if( allocate() )
  37   setp(base(),ebuf());
  38
  39   m_modified = FALSE;
  40 };
  41
  42 wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value,
  43       const wxPoint &pos, const wxSize &size,
  44       int style, const wxString &name ) : streambuf()
  45 {
  46   if( allocate() )
  47     setp(base(),ebuf());
  48
  49   m_modified = FALSE;
  50   Create( parent, id, value, pos, size, style, name );
  51 };
  52
  53 bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value,
  54       const wxPoint &pos, const wxSize &size,
  55       int style, const wxString &name )
  56 {
  57   m_needParent = TRUE;
  58
  59   PreCreation( parent, id, pos, size, style, name );
  60
  61   bool bMultiLine = (style & wxTE_MULTILINE) != 0;
  62   if ( bMultiLine ) {
  63     // a multi-line edit control: create a vertical scrollbar by default and
  64     // horizontal if requested
  65     bool bHasHScrollbar = (style & wxHSCROLL) != 0;
  66
  67     // create our control...
  68     m_text = gtk_text_new( NULL, NULL );
  69
  70     // ... and put into the upper left hand corner of the table
  71     m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE);
  72     gtk_table_attach(GTK_TABLE(m_widget), m_text, 0, 1, 0, 1,
  73                      GTK_FILL | GTK_EXPAND,
  74                      GTK_FILL | GTK_EXPAND | GTK_SHRINK,
  75                      0, 0);
  76
  77     // put the horizontal scrollbar in the lower left hand corner
  78     if ( bHasHScrollbar ) {
  79       GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj);
  80       gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2,
  81                        GTK_EXPAND | GTK_FILL,
  82                        GTK_FILL,
  83                        0, 0);
  84       gtk_widget_show(hscrollbar);
  85     }
  86
  87     // finally, put the vertical scrollbar in the upper right corner
  88     GtkWidget *vscrollbar = gtk_vscrollbar_new(GTK_TEXT(m_text)->vadj);
  89     gtk_table_attach(GTK_TABLE(m_widget), vscrollbar, 1, 2, 0, 1,
  90                      GTK_FILL,
  91                      GTK_EXPAND | GTK_FILL | GTK_SHRINK,
  92                      0, 0);
  93     gtk_widget_show(vscrollbar);
  94   }
  95   else {
  96     // a single-line text control: no need for scrollbars
  97     m_widget =
  98     m_text = gtk_entry_new();
  99   }
 100
 101   wxSize newSize = size;
 102   if (newSize.x == -1) newSize.x = 80;
 103   if (newSize.y == -1) newSize.y = 26;
 104   SetSize( newSize.x, newSize.y );
 105
 106   PostCreation();
 107
 108   if ( bMultiLine ) {
 109     gtk_widget_realize(m_text);
 110     gtk_widget_show(m_text);
 111   }
 112
 113   // we want to be notified about text changes
 114   gtk_signal_connect(GTK_OBJECT(m_text), "changed",
 115                      GTK_SIGNAL_FUNC(gtk_text_changed_callback),
 116                      (gpointer)this);
 117
 118   if (!value.IsNull())
 119   {
 120     gint tmp = 0;
 121     gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp );
 122   };
 123
 124   if (style & wxREADONLY)
 125   {
 126   }
 127   else
 128   {
 129     if ( bMultiLine )
 130       gtk_text_set_editable( GTK_TEXT(m_text), 1 );
 131   };
 132
 133   Show( TRUE );
 134
 135   return TRUE;
 136 };
 137
 138 wxString wxTextCtrl::GetValue(void) const
 139 {
 140   wxString tmp;
 141   if (m_windowStyle & wxTE_MULTILINE)
 142   {
 143     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 144     tmp = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
 145   }
 146   else
 147   {
 148     tmp = gtk_entry_get_text( GTK_ENTRY(m_text) );
 149   };
 150   return tmp;
 151 };
 152
 153 void wxTextCtrl::SetValue( const wxString &value )
 154 {
 155   wxString tmp = "";
 156   if (!value.IsNull()) tmp = value;
 157   if (m_windowStyle & wxTE_MULTILINE)
 158   {
 159     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 160     gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len );
 161     len = 0;
 162     gtk_editable_insert_text( GTK_EDITABLE(m_text), tmp, tmp.Length(), &len );
 163   }
 164   else
 165   {
 166     gtk_entry_set_text( GTK_ENTRY(m_text), tmp );
 167   };
 168 };
 169
 170 void wxTextCtrl::WriteText( const wxString &text )
 171 {
 172   if (text.IsNull()) return;
 173
 174   if (m_windowStyle & wxTE_MULTILINE)
 175   {
 176     gint len = gtk_text_get_length( GTK_TEXT(m_text) );
 177     gtk_editable_insert_text( GTK_EDITABLE(m_text), text, text.Length(), &len );
 178   }
 179   else
 180   {
 181     gtk_entry_append_text( GTK_ENTRY(m_text), text );
 182   };
 183 };
 184
 185 bool wxTextCtrl::LoadFile( const wxString &WXUNUSED(file) )
 186 {
 187   wxFAIL_MSG("wxTextCtrl::LoadFile not implemented");
 188
 189   return FALSE;
 190 };
 191
 192 bool wxTextCtrl::SaveFile( const wxString &WXUNUSED(file) )
 193 {
 194   wxFAIL_MSG("wxTextCtrl::SaveFile not implemented");
 195
 196   return FALSE;
 197 };
 198
 199 /*
 200 wxString wxTextCtrl::GetLineText( long lineNo ) const
 201 {
 202 };
 203
 204
 205 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &event )
 206 {
 207 };
 208
 209 long wxTextCtrl::PositionToXY( long pos, long *x, long *y ) const
 210 {
 211 };
 212
 213 long wxTextCtrl::XYToPosition( long x, long y )
 214 {
 215 };
 216
 217 int wxTextCtrl::GetNumberOfLines(void)
 218 {
 219 };
 220
 221 */
 222 void wxTextCtrl::SetInsertionPoint( long pos )
 223 {
 224   int tmp = (int) pos;
 225   if (m_windowStyle & wxTE_MULTILINE)
 226     gtk_text_set_point( GTK_TEXT(m_text), tmp );
 227   else
 228     gtk_entry_set_position( GTK_ENTRY(m_text), tmp );
 229 };
 230
 231 void wxTextCtrl::SetInsertionPointEnd(void)
 232 {
 233   int pos = 0;
 234   if (m_windowStyle & wxTE_MULTILINE)
 235     pos = gtk_text_get_length( GTK_TEXT(m_text) );
 236   else
 237     pos = GTK_ENTRY(m_text)->text_length;
 238   SetInsertionPoint( pos-1 );
 239 };
 240
 241 void wxTextCtrl::SetEditable( bool editable )
 242 {
 243   if (m_windowStyle & wxTE_MULTILINE)
 244     gtk_text_set_editable( GTK_TEXT(m_text), editable );
 245   else
 246     gtk_entry_set_editable( GTK_ENTRY(m_text), editable );
 247 };
 248
 249 void wxTextCtrl::SetSelection( long from, long to )
 250 {
 251   gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 252 };
 253
 254 void wxTextCtrl::ShowPosition( long WXUNUSED(pos) )
 255 {
 256   wxFAIL_MSG("wxTextCtrl::ShowPosition not implemented");
 257 };
 258
 259 long wxTextCtrl::GetInsertionPoint(void) const
 260 {
 261   return (long) GTK_EDITABLE(m_text)->current_pos;
 262 };
 263
 264 long wxTextCtrl::GetLastPosition(void) const
 265 {
 266   int pos = 0;
 267   if (m_windowStyle & wxTE_MULTILINE)
 268     pos = gtk_text_get_length( GTK_TEXT(m_text) );
 269   else
 270     pos = GTK_ENTRY(m_text)->text_length;
 271   return (long)pos-1;
 272 };
 273
 274 void wxTextCtrl::Remove( long from, long to )
 275 {
 276   gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 277 };
 278
 279 void wxTextCtrl::Replace( long from, long to, const wxString &value )
 280 {
 281   gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
 282   if (value.IsNull()) return;
 283   gint pos = (gint)to;
 284   gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &pos );
 285 };
 286
 287 void wxTextCtrl::Cut(void)
 288 {
 289   gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 );
 290 };
 291
 292 void wxTextCtrl::Copy(void)
 293 {
 294   gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 );
 295 };
 296
 297 void wxTextCtrl::Paste(void)
 298 {
 299   gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 );
 300 };
 301
 302 void wxTextCtrl::Delete(void)
 303 {
 304   SetValue( "" );
 305 };
 306
 307 void wxTextCtrl::OnChar( wxKeyEvent &WXUNUSED(event) )
 308 {
 309 };
 310
 311 int wxTextCtrl::overflow( int WXUNUSED(c) )
 312 {
 313   int len = pptr() - pbase();
 314   char *txt = new char[len+1];
 315   strncpy(txt, pbase(), len);
 316   txt[len] = '\0';
 317   (*this) << txt;
 318   setp(pbase(), epptr());
 319   delete[] txt;
 320   return EOF;
 321 };
 322
 323 int wxTextCtrl::sync(void)
 324 {
 325   int len = pptr() - pbase();
 326   char *txt = new char[len+1];
 327   strncpy(txt, pbase(), len);
 328   txt[len] = '\0';
 329   (*this) << txt;
 330   setp(pbase(), epptr());
 331   delete[] txt;
 332   return 0;
 333 };
 334
 335 int wxTextCtrl::underflow(void)
 336 {
 337   return EOF;
 338 };
 339
 340 wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
 341 {
 342   WriteText(s);
 343   return *this;
 344 }
 345
 346 wxTextCtrl& wxTextCtrl::operator<<(float f)
 347 {
 348   static char buf[100];
 349   sprintf(buf, "%.2f", f);
 350   WriteText(buf);
 351   return *this;
 352 }
 353
 354 wxTextCtrl& wxTextCtrl::operator<<(double d)
 355 {
 356   static char buf[100];
 357   sprintf(buf, "%.2f", d);
 358   WriteText(buf);
 359   return *this;
 360 }
 361
 362 wxTextCtrl& wxTextCtrl::operator<<(int i)
 363 {
 364   static char buf[100];
 365   sprintf(buf, "%i", i);
 366   WriteText(buf);
 367   return *this;
 368 }
 369
 370 wxTextCtrl& wxTextCtrl::operator<<(long i)
 371 {
 372   static char buf[100];
 373   sprintf(buf, "%ld", i);
 374   WriteText(buf);
 375   return *this;
 376 }
 377
 378 wxTextCtrl& wxTextCtrl::operator<<(const char c)
 379 {
 380   char buf[2];
 381
 382   buf[0] = c;
 383   buf[1] = 0;
 384   WriteText(buf);
 385   return *this;
 386 }
 387
 388 GtkWidget* wxTextCtrl::GetDropTargetWidget(void)
 389 {
 390   return GTK_WIDGET(m_text);
 391 };
 392
 393
 394
 395