src/gtk/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "radiobox.h"
  12 #endif
  13
  14 #include "wx/radiobox.h"
  15
  16 #if wxUSE_RADIOBOX
  17
  18 #include "wx/dialog.h"
  19 #include "wx/frame.h"
  20
  21 #include <gdk/gdk.h>
  22 #include <gtk/gtk.h>
  23 #include <gdk/gdkkeysyms.h>
  24
  25 #include "wx/gtk/win_gtk.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // idle system
  29 //-----------------------------------------------------------------------------
  30
  31 extern void wxapp_install_idle_handler();
  32 extern bool g_isIdle;
  33
  34 //-----------------------------------------------------------------------------
  35 // data
  36 //-----------------------------------------------------------------------------
  37
  38 extern bool       g_blockEventsOnDrag;
  39
  40 //-----------------------------------------------------------------------------
  41 // "clicked"
  42 //-----------------------------------------------------------------------------
  43
  44 static void gtk_radiobutton_clicked_callback( GtkWidget *WXUNUSED(widget), wxRadioBox *rb )
  45 {
  46     if (g_isIdle) wxapp_install_idle_handler();
  47
  48     if (!rb->m_hasVMT) return;
  49     if (g_blockEventsOnDrag) return;
  50
  51     if (rb->m_alreadySent)
  52     {
  53         rb->m_alreadySent = FALSE;
  54         return;
  55     }
  56
  57     rb->m_alreadySent = TRUE;
  58
  59     wxCommandEvent event( wxEVT_COMMAND_RADIOBOX_SELECTED, rb->GetId() );
  60     event.SetInt( rb->GetSelection() );
  61     event.SetString( rb->GetStringSelection() );
  62     event.SetEventObject( rb );
  63     rb->GetEventHandler()->ProcessEvent(event);
  64 }
  65
  66 //-----------------------------------------------------------------------------
  67 // "key_press_event"
  68 //-----------------------------------------------------------------------------
  69
  70 static gint gtk_radiobox_keypress_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxRadioBox *rb )
  71 {
  72     if (g_isIdle)
  73         wxapp_install_idle_handler();
  74
  75     if (!rb->m_hasVMT) return FALSE;
  76     if (g_blockEventsOnDrag) return FALSE;
  77
  78     if ((gdk_event->keyval != GDK_Up) &&
  79         (gdk_event->keyval != GDK_Down) &&
  80         (gdk_event->keyval != GDK_Left) &&
  81         (gdk_event->keyval != GDK_Right))
  82     {
  83         return FALSE;
  84     }
  85
  86     wxNode *node = rb->m_boxes.Find( (wxObject*) widget );
  87     if (!node)
  88     {
  89         return FALSE;
  90     }
  91
  92     gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
  93
  94     if ((gdk_event->keyval == GDK_Up) ||
  95         (gdk_event->keyval == GDK_Left))
  96     {
  97         if (node == rb->m_boxes.First())
  98             node = rb->m_boxes.Last();
  99         else
 100             node = node->Previous();
 101     }
 102     else
 103     {
 104         if (node == rb->m_boxes.Last())
 105             node = rb->m_boxes.First();
 106         else
 107             node = node->Next();
 108     }
 109
 110     GtkWidget *button = (GtkWidget*) node->Data();
 111
 112     gtk_widget_grab_focus( button );
 113
 114     return TRUE;
 115 }
 116
 117 //-----------------------------------------------------------------------------
 118 // wxRadioBox
 119 //-----------------------------------------------------------------------------
 120
 121 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox,wxControl)
 122
 123 wxRadioBox::wxRadioBox()
 124 {
 125 }
 126
 127 bool wxRadioBox::Create( wxWindow *parent, wxWindowID id, const wxString& title,
 128                          const wxPoint &pos, const wxSize &size,
 129                          int n, const wxString choices[], int majorDim,
 130                          long style, const wxValidator& validator,
 131                          const wxString &name )
 132 {
 133     m_alreadySent = FALSE;
 134     m_needParent = TRUE;
 135     m_acceptsFocus = TRUE;
 136
 137     if (!PreCreation( parent, pos, size ) ||
 138         !CreateBase( parent, id, pos, size, style, validator, name ))
 139     {
 140         wxFAIL_MSG( wxT("wxRadioBox creation failed") );
 141         return FALSE;
 142     }
 143
 144     m_widget = gtk_frame_new( title.mbc_str() );
 145
 146     m_majorDim = majorDim;
 147
 148     GtkRadioButton *m_radio = (GtkRadioButton*) NULL;
 149
 150     wxString label;
 151     GSList *radio_button_group = (GSList *) NULL;
 152     for (int i = 0; i < n; i++)
 153     {
 154         if ( i != 0 )
 155             radio_button_group = gtk_radio_button_group( GTK_RADIO_BUTTON(m_radio) );
 156
 157         label.Empty();
 158         for ( const wxChar *pc = choices[i]; *pc; pc++ )
 159         {
 160             if ( *pc != wxT('&') )
 161                 label += *pc;
 162         }
 163
 164         m_radio = GTK_RADIO_BUTTON( gtk_radio_button_new_with_label( radio_button_group, label.mbc_str() ) );
 165
 166         gtk_signal_connect( GTK_OBJECT(m_radio), "key_press_event",
 167            GTK_SIGNAL_FUNC(gtk_radiobox_keypress_callback), (gpointer)this );
 168
 169         m_boxes.Append( (wxObject*) m_radio );
 170
 171         ConnectWidget( GTK_WIDGET(m_radio) );
 172
 173         if (!i) gtk_toggle_button_set_state( GTK_TOGGLE_BUTTON(m_radio), TRUE );
 174
 175         gtk_signal_connect( GTK_OBJECT(m_radio), "clicked",
 176             GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 177
 178         gtk_pizza_put( GTK_PIZZA(m_parent->m_wxwindow),
 179                          GTK_WIDGET(m_radio),
 180                          m_x+10, m_y+10+(i*24), 10, 10 );
 181     }
 182
 183     m_parent->DoAddChild( this );
 184
 185     PostCreation();
 186
 187     ApplyWidgetStyle();
 188
 189     SetLabel( title );
 190
 191     SetFont( parent->GetFont() );
 192
 193     wxSize ls = LayoutItems();
 194
 195     GtkRequisition req;
 196     req.width = 2;
 197     req.height = 2;
 198     (* GTK_WIDGET_CLASS( GTK_OBJECT(m_widget)->klass )->size_request ) (m_widget, &req );
 199     if (req.width > ls.x) ls.x = req.width;
 200
 201     wxSize newSize = size;
 202     if (newSize.x == -1) newSize.x = ls.x;
 203     if (newSize.y == -1) newSize.y = ls.y;
 204     SetSize( newSize.x, newSize.y );
 205
 206     SetBackgroundColour( parent->GetBackgroundColour() );
 207     SetForegroundColour( parent->GetForegroundColour() );
 208
 209     Show( TRUE );
 210
 211     return TRUE;
 212 }
 213
 214 wxRadioBox::~wxRadioBox()
 215 {
 216     wxNode *node = m_boxes.First();
 217     while (node)
 218     {
 219         GtkWidget *button = GTK_WIDGET( node->Data() );
 220         gtk_widget_destroy( button );
 221         node = node->Next();
 222     }
 223 }
 224
 225 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 226 {
 227     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 228
 229     LayoutItems();
 230 }
 231
 232 wxSize wxRadioBox::LayoutItems()
 233 {
 234     int x = 7;
 235     int y = 15;
 236
 237     if ( m_majorDim == 0 )
 238     {
 239         // avoid dividing by 0 below
 240         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 241
 242         m_majorDim = 1;
 243     }
 244
 245     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 246
 247     wxSize res( 0, 0 );
 248
 249     int num_of_cols = 0;
 250     int num_of_rows = 0;
 251     if (HasFlag(wxRA_SPECIFY_COLS))
 252     {
 253         num_of_cols = m_majorDim;
 254         num_of_rows = num_per_major;
 255     }
 256     else
 257     {
 258         num_of_cols = num_per_major;
 259         num_of_rows = m_majorDim;
 260     }
 261
 262     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 263          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 264     {
 265         for (int j = 0; j < num_of_cols; j++)
 266         {
 267             y = 15;
 268
 269             int max_len = 0;
 270             wxNode *node = m_boxes.Nth( j*num_of_rows );
 271             for (int i1 = 0; i1< num_of_rows; i1++)
 272             {
 273                 GtkWidget *button = GTK_WIDGET( node->Data() );
 274
 275                 GtkRequisition req;
 276                 req.width = 2;
 277                 req.height = 2;
 278                 (* GTK_WIDGET_CLASS( GTK_OBJECT(button)->klass )->size_request )
 279                       (button, &req );
 280
 281                 if (req.width > max_len) max_len = req.width;
 282
 283                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 284                 y += req.height;
 285
 286                 node = node->Next();
 287                 if (!node) break;
 288             }
 289
 290             // we don't know the max_len before
 291
 292             node = m_boxes.Nth( j*num_of_rows );
 293             for (int i2 = 0; i2< num_of_rows; i2++)
 294             {
 295                 GtkWidget *button = GTK_WIDGET( node->Data() );
 296
 297                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 298
 299                 node = node->Next();
 300                 if (!node) break;
 301             }
 302
 303             if (y > res.y) res.y = y;
 304
 305             x += max_len + 2;
 306         }
 307
 308         res.x = x+4;
 309         res.y += 4;
 310     }
 311     else
 312     {
 313         int max = 0;
 314
 315         wxNode *node = m_boxes.First();
 316         while (node)
 317         {
 318             GtkWidget *button = GTK_WIDGET( node->Data() );
 319
 320             GtkRequisition req;
 321             req.width = 2;
 322             req.height = 2;
 323             (* GTK_WIDGET_CLASS( GTK_OBJECT(button)->klass )->size_request )
 324                   (button, &req );
 325
 326             if (req.width > max) max = req.width;
 327
 328             node = node->Next();
 329         }
 330
 331         node = m_boxes.First();
 332         while (node)
 333         {
 334             GtkWidget *button = GTK_WIDGET( node->Data() );
 335
 336             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 337             x += max;
 338
 339             node = node->Next();
 340         }
 341         res.x = x+4;
 342         res.y = 40;
 343     }
 344
 345     return res;
 346 }
 347
 348 bool wxRadioBox::Show( bool show )
 349 {
 350     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 351
 352     if (!wxControl::Show(show))
 353     {
 354         // nothing to do
 355         return FALSE;
 356     }
 357
 358     if ((m_windowStyle & wxNO_BORDER) != 0)
 359         gtk_widget_hide( m_widget );
 360
 361     wxNode *node = m_boxes.First();
 362     while (node)
 363     {
 364         GtkWidget *button = GTK_WIDGET( node->Data() );
 365
 366         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 367
 368         node = node->Next();
 369     }
 370
 371     return TRUE;
 372 }
 373
 374 int wxRadioBox::FindString( const wxString &s ) const
 375 {
 376     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 377
 378     int count = 0;
 379
 380     wxNode *node = m_boxes.First();
 381     while (node)
 382     {
 383         GtkButton *button = GTK_BUTTON( node->Data() );
 384
 385         GtkLabel *label = GTK_LABEL( button->child );
 386         if (s == label->label) return count;
 387         count++;
 388
 389         node = node->Next();
 390     }
 391
 392     return -1;
 393 }
 394
 395 void wxRadioBox::SetFocus()
 396 {
 397     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 398
 399     if (m_boxes.GetCount() == 0) return;
 400
 401     wxNode *node = m_boxes.First();
 402     while (node)
 403     {
 404         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 405         if (button->active)
 406         {
 407             gtk_widget_grab_focus( GTK_WIDGET(button) );
 408             return;
 409         }
 410         node = node->Next();
 411     }
 412
 413 }
 414
 415 void wxRadioBox::SetSelection( int n )
 416 {
 417     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 418
 419     wxNode *node = m_boxes.Nth( n );
 420
 421     wxCHECK_RET( node, wxT("radiobox wrong index") );
 422
 423     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 424
 425     GtkDisableEvents();
 426
 427     gtk_toggle_button_set_state( button, 1 );
 428
 429     GtkEnableEvents();
 430 }
 431
 432 int wxRadioBox::GetSelection(void) const
 433 {
 434     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 435
 436     int count = 0;
 437
 438     wxNode *node = m_boxes.First();
 439     while (node)
 440     {
 441         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 442         if (button->active) return count;
 443         count++;
 444         node = node->Next();
 445     }
 446
 447     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 448
 449     return -1;
 450 }
 451
 452 wxString wxRadioBox::GetString( int n ) const
 453 {
 454     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 455
 456     wxNode *node = m_boxes.Nth( n );
 457
 458     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 459
 460     GtkButton *button = GTK_BUTTON( node->Data() );
 461     GtkLabel *label = GTK_LABEL( button->child );
 462
 463     return wxString( label->label );
 464 }
 465
 466 wxString wxRadioBox::GetLabel( int item ) const
 467 {
 468     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 469
 470     return GetString( item );
 471 }
 472
 473 void wxRadioBox::SetLabel( const wxString& label )
 474 {
 475     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 476
 477     wxControl::SetLabel( label );
 478
 479     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 480 }
 481
 482 void wxRadioBox::SetLabel( int item, const wxString& label )
 483 {
 484     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 485
 486     wxNode *node = m_boxes.Nth( item );
 487
 488     wxCHECK_RET( node, wxT("radiobox wrong index") );
 489
 490     GtkButton *button = GTK_BUTTON( node->Data() );
 491     GtkLabel *g_label = GTK_LABEL( button->child );
 492
 493     gtk_label_set( g_label, label.mbc_str() );
 494 }
 495
 496 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 497 {
 498     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 499 }
 500
 501 bool wxRadioBox::Enable( bool enable )
 502 {
 503     if ( !wxControl::Enable( enable ) )
 504         return FALSE;
 505
 506     wxNode *node = m_boxes.First();
 507     while (node)
 508     {
 509         GtkButton *button = GTK_BUTTON( node->Data() );
 510         GtkWidget *label = button->child;
 511         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 512         gtk_widget_set_sensitive( label, enable );
 513         node = node->Next();
 514     }
 515
 516     return TRUE;
 517 }
 518
 519 void wxRadioBox::Enable( int item, bool enable )
 520 {
 521     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 522
 523     wxNode *node = m_boxes.Nth( item );
 524
 525     wxCHECK_RET( node, wxT("radiobox wrong index") );
 526
 527     GtkButton *button = GTK_BUTTON( node->Data() );
 528     GtkWidget *label = button->child;
 529     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 530     gtk_widget_set_sensitive( label, enable );
 531 }
 532
 533 void wxRadioBox::Show( int item, bool show )
 534 {
 535     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 536
 537     wxNode *node = m_boxes.Nth( item );
 538
 539     wxCHECK_RET( node, wxT("radiobox wrong index") );
 540
 541     GtkWidget *button = GTK_WIDGET( node->Data() );
 542
 543     if (show)
 544         gtk_widget_show( button );
 545     else
 546         gtk_widget_hide( button );
 547 }
 548
 549 wxString wxRadioBox::GetStringSelection() const
 550 {
 551     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 552
 553     wxNode *node = m_boxes.First();
 554     while (node)
 555     {
 556         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 557         if (button->active)
 558         {
 559             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 560             return label->label;
 561         }
 562         node = node->Next();
 563     }
 564
 565     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 566     return wxT("");
 567 }
 568
 569 bool wxRadioBox::SetStringSelection( const wxString &s )
 570 {
 571     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 572
 573     int res = FindString( s );
 574     if (res == -1) return FALSE;
 575     SetSelection( res );
 576
 577     return TRUE;
 578 }
 579
 580 int wxRadioBox::Number() const
 581 {
 582     return m_boxes.Number();
 583 }
 584
 585 int wxRadioBox::GetNumberOfRowsOrCols() const
 586 {
 587     return 1;
 588 }
 589
 590 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 591 {
 592     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 593 }
 594
 595 void wxRadioBox::GtkDisableEvents()
 596 {
 597     wxNode *node = m_boxes.First();
 598     while (node)
 599     {
 600         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 601            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 602
 603         node = node->Next();
 604     }
 605 }
 606
 607 void wxRadioBox::GtkEnableEvents()
 608 {
 609     wxNode *node = m_boxes.First();
 610     while (node)
 611     {
 612         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 613            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 614
 615         node = node->Next();
 616     }
 617 }
 618
 619 void wxRadioBox::ApplyWidgetStyle()
 620 {
 621     SetWidgetStyle();
 622
 623     gtk_widget_set_style( m_widget, m_widgetStyle );
 624
 625     wxNode *node = m_boxes.First();
 626     while (node)
 627     {
 628         GtkWidget *widget = GTK_WIDGET( node->Data() );
 629         gtk_widget_set_style( widget, m_widgetStyle );
 630
 631         GtkButton *button = GTK_BUTTON( node->Data() );
 632         gtk_widget_set_style( button->child, m_widgetStyle );
 633
 634         node = node->Next();
 635     }
 636 }
 637
 638 #if wxUSE_TOOLTIPS
 639 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 640 {
 641     wxNode *node = m_boxes.First();
 642     while (node)
 643     {
 644         GtkWidget *widget = GTK_WIDGET( node->Data() );
 645         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 646         node = node->Next();
 647     }
 648 }
 649 #endif // wxUSE_TOOLTIPS
 650
 651 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 652 {
 653     if (window == m_widget->window) return TRUE;
 654
 655     wxNode *node = m_boxes.First();
 656     while (node)
 657     {
 658         GtkWidget *button = GTK_WIDGET( node->Data() );
 659
 660         if (window == button->window) return TRUE;
 661
 662         node = node->Next();
 663     }
 664
 665     return FALSE;
 666 }
 667
 668 #endif