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     wxSize ls = LayoutItems();
 184
 185     wxSize newSize = size;
 186     if (newSize.x == -1) newSize.x = ls.x;
 187     if (newSize.y == -1) newSize.y = ls.y;
 188     SetSize( newSize.x, newSize.y );
 189
 190     m_parent->DoAddChild( this );
 191
 192     PostCreation();
 193
 194     SetLabel( title );
 195
 196     SetBackgroundColour( parent->GetBackgroundColour() );
 197     SetForegroundColour( parent->GetForegroundColour() );
 198     SetFont( parent->GetFont() );
 199
 200     Show( TRUE );
 201
 202     return TRUE;
 203 }
 204
 205 wxRadioBox::~wxRadioBox()
 206 {
 207     wxNode *node = m_boxes.First();
 208     while (node)
 209     {
 210         GtkWidget *button = GTK_WIDGET( node->Data() );
 211         gtk_widget_destroy( button );
 212         node = node->Next();
 213     }
 214 }
 215
 216 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 217 {
 218     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 219
 220     LayoutItems();
 221 }
 222
 223 wxSize wxRadioBox::LayoutItems()
 224 {
 225     int x = 7;
 226     int y = 15;
 227
 228     if ( m_majorDim == 0 )
 229     {
 230         // avoid dividing by 0 below
 231         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 232
 233         m_majorDim = 1;
 234     }
 235
 236     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 237
 238     wxSize res( 0, 0 );
 239
 240     int num_of_cols = 0;
 241     int num_of_rows = 0;
 242     if (HasFlag(wxRA_SPECIFY_COLS))
 243     {
 244         num_of_cols = m_majorDim;
 245         num_of_rows = num_per_major;
 246     }
 247     else
 248     {
 249         num_of_cols = num_per_major;
 250         num_of_rows = m_majorDim;
 251     }
 252
 253     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 254          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 255     {
 256         for (int j = 0; j < num_of_cols; j++)
 257         {
 258             y = 15;
 259
 260             int max_len = 0;
 261             wxNode *node = m_boxes.Nth( j*num_of_rows );
 262             for (int i1 = 0; i1< num_of_rows; i1++)
 263             {
 264                 GtkWidget *button = GTK_WIDGET( node->Data() );
 265                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 266                 GdkFont *font = m_widget->style->font;
 267                 int len = 22+gdk_string_measure( font, label->label );
 268                 if (len > max_len) max_len = len;
 269
 270                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 271                 y += 22;
 272
 273                 node = node->Next();
 274                 if (!node) break;
 275             }
 276
 277             // we don't know the max_len before
 278
 279             node = m_boxes.Nth( j*num_of_rows );
 280             for (int i2 = 0; i2< num_of_rows; i2++)
 281             {
 282                 GtkWidget *button = GTK_WIDGET( node->Data() );
 283
 284                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 285
 286                 node = node->Next();
 287                 if (!node) break;
 288             }
 289
 290             if (y > res.y) res.y = y;
 291
 292             x += max_len + 2;
 293         }
 294
 295         res.x = x+4;
 296         res.y += 9;
 297     }
 298     else
 299     {
 300         int max = 0;
 301
 302         wxNode *node = m_boxes.First();
 303         while (node)
 304         {
 305             GtkButton *button = GTK_BUTTON( node->Data() );
 306             GtkLabel *label = GTK_LABEL( button->child );
 307
 308             GdkFont *font = m_widget->style->font;
 309             int len = 22+gdk_string_measure( font, label->label );
 310             if (len > max) max = len;
 311
 312             node = node->Next();
 313         }
 314
 315         node = m_boxes.First();
 316         while (node)
 317         {
 318             GtkWidget *button = GTK_WIDGET( node->Data() );
 319
 320             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 321             x += max;
 322
 323             node = node->Next();
 324         }
 325         res.x = x+4;
 326         res.y = 40;
 327     }
 328
 329     return res;
 330 }
 331
 332 bool wxRadioBox::Show( bool show )
 333 {
 334     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 335
 336     if (!wxControl::Show(show))
 337     {
 338         // nothing to do
 339         return FALSE;
 340     }
 341
 342     if ((m_windowStyle & wxNO_BORDER) != 0)
 343         gtk_widget_hide( m_widget );
 344
 345     wxNode *node = m_boxes.First();
 346     while (node)
 347     {
 348         GtkWidget *button = GTK_WIDGET( node->Data() );
 349
 350         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 351
 352         node = node->Next();
 353     }
 354
 355     return TRUE;
 356 }
 357
 358 int wxRadioBox::FindString( const wxString &s ) const
 359 {
 360     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 361
 362     int count = 0;
 363
 364     wxNode *node = m_boxes.First();
 365     while (node)
 366     {
 367         GtkButton *button = GTK_BUTTON( node->Data() );
 368
 369         GtkLabel *label = GTK_LABEL( button->child );
 370         if (s == label->label) return count;
 371         count++;
 372
 373         node = node->Next();
 374     }
 375
 376     return -1;
 377 }
 378
 379 void wxRadioBox::SetFocus()
 380 {
 381     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 382
 383     if (m_boxes.GetCount() == 0) return;
 384
 385     wxNode *node = m_boxes.First();
 386     while (node)
 387     {
 388         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 389         if (button->active)
 390         {
 391             gtk_widget_grab_focus( GTK_WIDGET(button) );
 392             return;
 393         }
 394         node = node->Next();
 395     }
 396
 397 }
 398
 399 void wxRadioBox::SetSelection( int n )
 400 {
 401     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 402
 403     wxNode *node = m_boxes.Nth( n );
 404
 405     wxCHECK_RET( node, wxT("radiobox wrong index") );
 406
 407     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 408
 409     GtkDisableEvents();
 410
 411     gtk_toggle_button_set_state( button, 1 );
 412
 413     GtkEnableEvents();
 414 }
 415
 416 int wxRadioBox::GetSelection(void) const
 417 {
 418     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 419
 420     int count = 0;
 421
 422     wxNode *node = m_boxes.First();
 423     while (node)
 424     {
 425         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 426         if (button->active) return count;
 427         count++;
 428         node = node->Next();
 429     }
 430
 431     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 432
 433     return -1;
 434 }
 435
 436 wxString wxRadioBox::GetString( int n ) const
 437 {
 438     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 439
 440     wxNode *node = m_boxes.Nth( n );
 441
 442     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 443
 444     GtkButton *button = GTK_BUTTON( node->Data() );
 445     GtkLabel *label = GTK_LABEL( button->child );
 446
 447     return wxString( label->label );
 448 }
 449
 450 wxString wxRadioBox::GetLabel( int item ) const
 451 {
 452     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 453
 454     return GetString( item );
 455 }
 456
 457 void wxRadioBox::SetLabel( const wxString& label )
 458 {
 459     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 460
 461     wxControl::SetLabel( label );
 462
 463     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 464 }
 465
 466 void wxRadioBox::SetLabel( int item, const wxString& label )
 467 {
 468     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 469
 470     wxNode *node = m_boxes.Nth( item );
 471
 472     wxCHECK_RET( node, wxT("radiobox wrong index") );
 473
 474     GtkButton *button = GTK_BUTTON( node->Data() );
 475     GtkLabel *g_label = GTK_LABEL( button->child );
 476
 477     gtk_label_set( g_label, label.mbc_str() );
 478 }
 479
 480 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 481 {
 482     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 483 }
 484
 485 bool wxRadioBox::Enable( bool enable )
 486 {
 487     if ( !wxControl::Enable( enable ) )
 488         return FALSE;
 489
 490     wxNode *node = m_boxes.First();
 491     while (node)
 492     {
 493         GtkButton *button = GTK_BUTTON( node->Data() );
 494         GtkWidget *label = button->child;
 495         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 496         gtk_widget_set_sensitive( label, enable );
 497         node = node->Next();
 498     }
 499
 500     return TRUE;
 501 }
 502
 503 void wxRadioBox::Enable( int item, bool enable )
 504 {
 505     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 506
 507     wxNode *node = m_boxes.Nth( item );
 508
 509     wxCHECK_RET( node, wxT("radiobox wrong index") );
 510
 511     GtkButton *button = GTK_BUTTON( node->Data() );
 512     GtkWidget *label = button->child;
 513     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 514     gtk_widget_set_sensitive( label, enable );
 515 }
 516
 517 void wxRadioBox::Show( int item, bool show )
 518 {
 519     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 520
 521     wxNode *node = m_boxes.Nth( item );
 522
 523     wxCHECK_RET( node, wxT("radiobox wrong index") );
 524
 525     GtkWidget *button = GTK_WIDGET( node->Data() );
 526
 527     if (show)
 528         gtk_widget_show( button );
 529     else
 530         gtk_widget_hide( button );
 531 }
 532
 533 wxString wxRadioBox::GetStringSelection() const
 534 {
 535     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 536
 537     wxNode *node = m_boxes.First();
 538     while (node)
 539     {
 540         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 541         if (button->active)
 542         {
 543             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 544             return label->label;
 545         }
 546         node = node->Next();
 547     }
 548
 549     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 550     return wxT("");
 551 }
 552
 553 bool wxRadioBox::SetStringSelection( const wxString &s )
 554 {
 555     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 556
 557     int res = FindString( s );
 558     if (res == -1) return FALSE;
 559     SetSelection( res );
 560
 561     return TRUE;
 562 }
 563
 564 int wxRadioBox::Number() const
 565 {
 566     return m_boxes.Number();
 567 }
 568
 569 int wxRadioBox::GetNumberOfRowsOrCols() const
 570 {
 571     return 1;
 572 }
 573
 574 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 575 {
 576     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 577 }
 578
 579 void wxRadioBox::GtkDisableEvents()
 580 {
 581     wxNode *node = m_boxes.First();
 582     while (node)
 583     {
 584         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 585            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 586
 587         node = node->Next();
 588     }
 589 }
 590
 591 void wxRadioBox::GtkEnableEvents()
 592 {
 593     wxNode *node = m_boxes.First();
 594     while (node)
 595     {
 596         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 597            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 598
 599         node = node->Next();
 600     }
 601 }
 602
 603 void wxRadioBox::ApplyWidgetStyle()
 604 {
 605     SetWidgetStyle();
 606
 607     gtk_widget_set_style( m_widget, m_widgetStyle );
 608
 609     wxNode *node = m_boxes.First();
 610     while (node)
 611     {
 612         GtkWidget *widget = GTK_WIDGET( node->Data() );
 613         gtk_widget_set_style( widget, m_widgetStyle );
 614
 615         GtkButton *button = GTK_BUTTON( node->Data() );
 616         gtk_widget_set_style( button->child, m_widgetStyle );
 617
 618         node = node->Next();
 619     }
 620 }
 621
 622 #if wxUSE_TOOLTIPS
 623 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 624 {
 625     wxNode *node = m_boxes.First();
 626     while (node)
 627     {
 628         GtkWidget *widget = GTK_WIDGET( node->Data() );
 629         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 630         node = node->Next();
 631     }
 632 }
 633 #endif // wxUSE_TOOLTIPS
 634
 635 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 636 {
 637     if (window == m_widget->window) return TRUE;
 638
 639     wxNode *node = m_boxes.First();
 640     while (node)
 641     {
 642         GtkWidget *button = GTK_WIDGET( node->Data() );
 643
 644         if (window == button->window) return TRUE;
 645
 646         node = node->Next();
 647     }
 648
 649     return FALSE;
 650 }
 651
 652 #endif