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     wxSize newSize = size;
 196     if (newSize.x == -1) newSize.x = ls.x;
 197     if (newSize.y == -1) newSize.y = ls.y;
 198     SetSize( newSize.x, newSize.y );
 199
 200     SetBackgroundColour( parent->GetBackgroundColour() );
 201     SetForegroundColour( parent->GetForegroundColour() );
 202
 203     Show( TRUE );
 204
 205     return TRUE;
 206 }
 207
 208 wxRadioBox::~wxRadioBox()
 209 {
 210     wxNode *node = m_boxes.First();
 211     while (node)
 212     {
 213         GtkWidget *button = GTK_WIDGET( node->Data() );
 214         gtk_widget_destroy( button );
 215         node = node->Next();
 216     }
 217 }
 218
 219 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 220 {
 221     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 222
 223     LayoutItems();
 224 }
 225
 226 wxSize wxRadioBox::LayoutItems()
 227 {
 228     int x = 7;
 229     int y = 15;
 230
 231     if ( m_majorDim == 0 )
 232     {
 233         // avoid dividing by 0 below
 234         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 235
 236         m_majorDim = 1;
 237     }
 238
 239     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 240
 241     wxSize res( 0, 0 );
 242
 243     int num_of_cols = 0;
 244     int num_of_rows = 0;
 245     if (HasFlag(wxRA_SPECIFY_COLS))
 246     {
 247         num_of_cols = m_majorDim;
 248         num_of_rows = num_per_major;
 249     }
 250     else
 251     {
 252         num_of_cols = num_per_major;
 253         num_of_rows = m_majorDim;
 254     }
 255
 256     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 257          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 258     {
 259         for (int j = 0; j < num_of_cols; j++)
 260         {
 261             y = 15;
 262
 263             int max_len = 0;
 264             wxNode *node = m_boxes.Nth( j*num_of_rows );
 265             for (int i1 = 0; i1< num_of_rows; i1++)
 266             {
 267                 GtkWidget *button = GTK_WIDGET( node->Data() );
 268
 269                 GtkRequisition req;
 270                 req.width = 2;
 271                 req.height = 2;
 272                 (* GTK_WIDGET_CLASS( GTK_OBJECT(button)->klass )->size_request )
 273                       (button, &req );
 274
 275                 if (req.width > max_len) max_len = req.width;
 276
 277                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 278                 y += req.height;
 279
 280                 node = node->Next();
 281                 if (!node) break;
 282             }
 283
 284             // we don't know the max_len before
 285
 286             node = m_boxes.Nth( j*num_of_rows );
 287             for (int i2 = 0; i2< num_of_rows; i2++)
 288             {
 289                 GtkWidget *button = GTK_WIDGET( node->Data() );
 290
 291                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 292
 293                 node = node->Next();
 294                 if (!node) break;
 295             }
 296
 297             if (y > res.y) res.y = y;
 298
 299             x += max_len + 2;
 300         }
 301
 302         res.x = x+4;
 303         res.y += 4;
 304     }
 305     else
 306     {
 307         int max = 0;
 308
 309         wxNode *node = m_boxes.First();
 310         while (node)
 311         {
 312             GtkWidget *button = GTK_WIDGET( node->Data() );
 313
 314             GtkRequisition req;
 315             req.width = 2;
 316             req.height = 2;
 317             (* GTK_WIDGET_CLASS( GTK_OBJECT(button)->klass )->size_request )
 318                   (button, &req );
 319
 320             if (req.width > max) max = req.width;
 321
 322             node = node->Next();
 323         }
 324
 325         node = m_boxes.First();
 326         while (node)
 327         {
 328             GtkWidget *button = GTK_WIDGET( node->Data() );
 329
 330             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 331             x += max;
 332
 333             node = node->Next();
 334         }
 335         res.x = x+4;
 336         res.y = 40;
 337     }
 338
 339     return res;
 340 }
 341
 342 bool wxRadioBox::Show( bool show )
 343 {
 344     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 345
 346     if (!wxControl::Show(show))
 347     {
 348         // nothing to do
 349         return FALSE;
 350     }
 351
 352     if ((m_windowStyle & wxNO_BORDER) != 0)
 353         gtk_widget_hide( m_widget );
 354
 355     wxNode *node = m_boxes.First();
 356     while (node)
 357     {
 358         GtkWidget *button = GTK_WIDGET( node->Data() );
 359
 360         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 361
 362         node = node->Next();
 363     }
 364
 365     return TRUE;
 366 }
 367
 368 int wxRadioBox::FindString( const wxString &s ) const
 369 {
 370     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 371
 372     int count = 0;
 373
 374     wxNode *node = m_boxes.First();
 375     while (node)
 376     {
 377         GtkButton *button = GTK_BUTTON( node->Data() );
 378
 379         GtkLabel *label = GTK_LABEL( button->child );
 380         if (s == label->label) return count;
 381         count++;
 382
 383         node = node->Next();
 384     }
 385
 386     return -1;
 387 }
 388
 389 void wxRadioBox::SetFocus()
 390 {
 391     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 392
 393     if (m_boxes.GetCount() == 0) return;
 394
 395     wxNode *node = m_boxes.First();
 396     while (node)
 397     {
 398         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 399         if (button->active)
 400         {
 401             gtk_widget_grab_focus( GTK_WIDGET(button) );
 402             return;
 403         }
 404         node = node->Next();
 405     }
 406
 407 }
 408
 409 void wxRadioBox::SetSelection( int n )
 410 {
 411     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 412
 413     wxNode *node = m_boxes.Nth( n );
 414
 415     wxCHECK_RET( node, wxT("radiobox wrong index") );
 416
 417     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 418
 419     GtkDisableEvents();
 420
 421     gtk_toggle_button_set_state( button, 1 );
 422
 423     GtkEnableEvents();
 424 }
 425
 426 int wxRadioBox::GetSelection(void) const
 427 {
 428     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 429
 430     int count = 0;
 431
 432     wxNode *node = m_boxes.First();
 433     while (node)
 434     {
 435         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 436         if (button->active) return count;
 437         count++;
 438         node = node->Next();
 439     }
 440
 441     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 442
 443     return -1;
 444 }
 445
 446 wxString wxRadioBox::GetString( int n ) const
 447 {
 448     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 449
 450     wxNode *node = m_boxes.Nth( n );
 451
 452     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 453
 454     GtkButton *button = GTK_BUTTON( node->Data() );
 455     GtkLabel *label = GTK_LABEL( button->child );
 456
 457     return wxString( label->label );
 458 }
 459
 460 wxString wxRadioBox::GetLabel( int item ) const
 461 {
 462     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 463
 464     return GetString( item );
 465 }
 466
 467 void wxRadioBox::SetLabel( const wxString& label )
 468 {
 469     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 470
 471     wxControl::SetLabel( label );
 472
 473     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 474 }
 475
 476 void wxRadioBox::SetLabel( int item, const wxString& label )
 477 {
 478     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 479
 480     wxNode *node = m_boxes.Nth( item );
 481
 482     wxCHECK_RET( node, wxT("radiobox wrong index") );
 483
 484     GtkButton *button = GTK_BUTTON( node->Data() );
 485     GtkLabel *g_label = GTK_LABEL( button->child );
 486
 487     gtk_label_set( g_label, label.mbc_str() );
 488 }
 489
 490 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 491 {
 492     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 493 }
 494
 495 bool wxRadioBox::Enable( bool enable )
 496 {
 497     if ( !wxControl::Enable( enable ) )
 498         return FALSE;
 499
 500     wxNode *node = m_boxes.First();
 501     while (node)
 502     {
 503         GtkButton *button = GTK_BUTTON( node->Data() );
 504         GtkWidget *label = button->child;
 505         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 506         gtk_widget_set_sensitive( label, enable );
 507         node = node->Next();
 508     }
 509
 510     return TRUE;
 511 }
 512
 513 void wxRadioBox::Enable( int item, bool enable )
 514 {
 515     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 516
 517     wxNode *node = m_boxes.Nth( item );
 518
 519     wxCHECK_RET( node, wxT("radiobox wrong index") );
 520
 521     GtkButton *button = GTK_BUTTON( node->Data() );
 522     GtkWidget *label = button->child;
 523     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 524     gtk_widget_set_sensitive( label, enable );
 525 }
 526
 527 void wxRadioBox::Show( int item, bool show )
 528 {
 529     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 530
 531     wxNode *node = m_boxes.Nth( item );
 532
 533     wxCHECK_RET( node, wxT("radiobox wrong index") );
 534
 535     GtkWidget *button = GTK_WIDGET( node->Data() );
 536
 537     if (show)
 538         gtk_widget_show( button );
 539     else
 540         gtk_widget_hide( button );
 541 }
 542
 543 wxString wxRadioBox::GetStringSelection() const
 544 {
 545     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 546
 547     wxNode *node = m_boxes.First();
 548     while (node)
 549     {
 550         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 551         if (button->active)
 552         {
 553             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 554             return label->label;
 555         }
 556         node = node->Next();
 557     }
 558
 559     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 560     return wxT("");
 561 }
 562
 563 bool wxRadioBox::SetStringSelection( const wxString &s )
 564 {
 565     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 566
 567     int res = FindString( s );
 568     if (res == -1) return FALSE;
 569     SetSelection( res );
 570
 571     return TRUE;
 572 }
 573
 574 int wxRadioBox::Number() const
 575 {
 576     return m_boxes.Number();
 577 }
 578
 579 int wxRadioBox::GetNumberOfRowsOrCols() const
 580 {
 581     return 1;
 582 }
 583
 584 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 585 {
 586     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 587 }
 588
 589 void wxRadioBox::GtkDisableEvents()
 590 {
 591     wxNode *node = m_boxes.First();
 592     while (node)
 593     {
 594         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 595            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 596
 597         node = node->Next();
 598     }
 599 }
 600
 601 void wxRadioBox::GtkEnableEvents()
 602 {
 603     wxNode *node = m_boxes.First();
 604     while (node)
 605     {
 606         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 607            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 608
 609         node = node->Next();
 610     }
 611 }
 612
 613 void wxRadioBox::ApplyWidgetStyle()
 614 {
 615     SetWidgetStyle();
 616
 617     gtk_widget_set_style( m_widget, m_widgetStyle );
 618
 619     wxNode *node = m_boxes.First();
 620     while (node)
 621     {
 622         GtkWidget *widget = GTK_WIDGET( node->Data() );
 623         gtk_widget_set_style( widget, m_widgetStyle );
 624
 625         GtkButton *button = GTK_BUTTON( node->Data() );
 626         gtk_widget_set_style( button->child, m_widgetStyle );
 627
 628         node = node->Next();
 629     }
 630 }
 631
 632 #if wxUSE_TOOLTIPS
 633 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 634 {
 635     wxNode *node = m_boxes.First();
 636     while (node)
 637     {
 638         GtkWidget *widget = GTK_WIDGET( node->Data() );
 639         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 640         node = node->Next();
 641     }
 642 }
 643 #endif // wxUSE_TOOLTIPS
 644
 645 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 646 {
 647     if (window == m_widget->window) return TRUE;
 648
 649     wxNode *node = m_boxes.First();
 650     while (node)
 651     {
 652         GtkWidget *button = GTK_WIDGET( node->Data() );
 653
 654         if (window == button->window) return TRUE;
 655
 656         node = node->Next();
 657     }
 658
 659     return FALSE;
 660 }
 661
 662 #endif