src/gtk1/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     SetLabel( title );
 188
 189     SetFont( parent->GetFont() );
 190
 191     wxSize ls = LayoutItems();
 192
 193     wxSize newSize = size;
 194     if (newSize.x == -1) newSize.x = ls.x;
 195     if (newSize.y == -1) newSize.y = ls.y;
 196     SetSize( newSize.x, newSize.y );
 197
 198     SetBackgroundColour( parent->GetBackgroundColour() );
 199     SetForegroundColour( parent->GetForegroundColour() );
 200
 201     Show( TRUE );
 202
 203     return TRUE;
 204 }
 205
 206 wxRadioBox::~wxRadioBox()
 207 {
 208     wxNode *node = m_boxes.First();
 209     while (node)
 210     {
 211         GtkWidget *button = GTK_WIDGET( node->Data() );
 212         gtk_widget_destroy( button );
 213         node = node->Next();
 214     }
 215 }
 216
 217 void wxRadioBox::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 218 {
 219     wxWindow::DoSetSize( x, y, width, height, sizeFlags );
 220
 221     LayoutItems();
 222 }
 223
 224 wxSize wxRadioBox::LayoutItems()
 225 {
 226     int x = 7;
 227     int y = 15;
 228
 229     if ( m_majorDim == 0 )
 230     {
 231         // avoid dividing by 0 below
 232         wxFAIL_MSG( wxT("dimension of radiobox should not be 0!") );
 233
 234         m_majorDim = 1;
 235     }
 236
 237     int num_per_major = (m_boxes.GetCount() - 1) / m_majorDim +1;
 238
 239     wxSize res( 0, 0 );
 240
 241     int num_of_cols = 0;
 242     int num_of_rows = 0;
 243     if (HasFlag(wxRA_SPECIFY_COLS))
 244     {
 245         num_of_cols = m_majorDim;
 246         num_of_rows = num_per_major;
 247     }
 248     else
 249     {
 250         num_of_cols = num_per_major;
 251         num_of_rows = m_majorDim;
 252     }
 253
 254     if ( HasFlag(wxRA_SPECIFY_COLS) ||
 255          (HasFlag(wxRA_SPECIFY_ROWS) && (num_of_cols > 1)) )
 256     {
 257         for (int j = 0; j < num_of_cols; j++)
 258         {
 259             y = 15;
 260
 261             int max_len = 0;
 262             wxNode *node = m_boxes.Nth( j*num_of_rows );
 263             for (int i1 = 0; i1< num_of_rows; i1++)
 264             {
 265                 GtkWidget *button = GTK_WIDGET( node->Data() );
 266                 GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 267                 GdkFont *font = m_widget->style->font;
 268                 int len = 22+gdk_string_measure( font, label->label );
 269                 if (len > max_len) max_len = len;
 270
 271                 gtk_pizza_move( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y );
 272                 y += 22;
 273
 274                 node = node->Next();
 275                 if (!node) break;
 276             }
 277
 278             // we don't know the max_len before
 279
 280             node = m_boxes.Nth( j*num_of_rows );
 281             for (int i2 = 0; i2< num_of_rows; i2++)
 282             {
 283                 GtkWidget *button = GTK_WIDGET( node->Data() );
 284
 285                 gtk_pizza_resize( GTK_PIZZA(m_parent->m_wxwindow), button, max_len, 20 );
 286
 287                 node = node->Next();
 288                 if (!node) break;
 289             }
 290
 291             if (y > res.y) res.y = y;
 292
 293             x += max_len + 2;
 294         }
 295
 296         res.x = x+4;
 297         res.y += 9;
 298     }
 299     else
 300     {
 301         int max = 0;
 302
 303         wxNode *node = m_boxes.First();
 304         while (node)
 305         {
 306             GtkButton *button = GTK_BUTTON( node->Data() );
 307             GtkLabel *label = GTK_LABEL( button->child );
 308
 309             GdkFont *font = m_widget->style->font;
 310             int len = 22+gdk_string_measure( font, label->label );
 311             if (len > max) max = len;
 312
 313             node = node->Next();
 314         }
 315
 316         node = m_boxes.First();
 317         while (node)
 318         {
 319             GtkWidget *button = GTK_WIDGET( node->Data() );
 320
 321             gtk_pizza_set_size( GTK_PIZZA(m_parent->m_wxwindow), button, m_x+x, m_y+y, max, 20 );
 322             x += max;
 323
 324             node = node->Next();
 325         }
 326         res.x = x+4;
 327         res.y = 40;
 328     }
 329
 330     return res;
 331 }
 332
 333 bool wxRadioBox::Show( bool show )
 334 {
 335     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 336
 337     if (!wxControl::Show(show))
 338     {
 339         // nothing to do
 340         return FALSE;
 341     }
 342
 343     if ((m_windowStyle & wxNO_BORDER) != 0)
 344         gtk_widget_hide( m_widget );
 345
 346     wxNode *node = m_boxes.First();
 347     while (node)
 348     {
 349         GtkWidget *button = GTK_WIDGET( node->Data() );
 350
 351         if (show) gtk_widget_show( button ); else gtk_widget_hide( button );
 352
 353         node = node->Next();
 354     }
 355
 356     return TRUE;
 357 }
 358
 359 int wxRadioBox::FindString( const wxString &s ) const
 360 {
 361     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 362
 363     int count = 0;
 364
 365     wxNode *node = m_boxes.First();
 366     while (node)
 367     {
 368         GtkButton *button = GTK_BUTTON( node->Data() );
 369
 370         GtkLabel *label = GTK_LABEL( button->child );
 371         if (s == label->label) return count;
 372         count++;
 373
 374         node = node->Next();
 375     }
 376
 377     return -1;
 378 }
 379
 380 void wxRadioBox::SetFocus()
 381 {
 382     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 383
 384     if (m_boxes.GetCount() == 0) return;
 385
 386     wxNode *node = m_boxes.First();
 387     while (node)
 388     {
 389         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 390         if (button->active)
 391         {
 392             gtk_widget_grab_focus( GTK_WIDGET(button) );
 393             return;
 394         }
 395         node = node->Next();
 396     }
 397
 398 }
 399
 400 void wxRadioBox::SetSelection( int n )
 401 {
 402     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 403
 404     wxNode *node = m_boxes.Nth( n );
 405
 406     wxCHECK_RET( node, wxT("radiobox wrong index") );
 407
 408     GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 409
 410     GtkDisableEvents();
 411
 412     gtk_toggle_button_set_state( button, 1 );
 413
 414     GtkEnableEvents();
 415 }
 416
 417 int wxRadioBox::GetSelection(void) const
 418 {
 419     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid radiobox") );
 420
 421     int count = 0;
 422
 423     wxNode *node = m_boxes.First();
 424     while (node)
 425     {
 426         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 427         if (button->active) return count;
 428         count++;
 429         node = node->Next();
 430     }
 431
 432     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 433
 434     return -1;
 435 }
 436
 437 wxString wxRadioBox::GetString( int n ) const
 438 {
 439     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 440
 441     wxNode *node = m_boxes.Nth( n );
 442
 443     wxCHECK_MSG( node, wxT(""), wxT("radiobox wrong index") );
 444
 445     GtkButton *button = GTK_BUTTON( node->Data() );
 446     GtkLabel *label = GTK_LABEL( button->child );
 447
 448     return wxString( label->label );
 449 }
 450
 451 wxString wxRadioBox::GetLabel( int item ) const
 452 {
 453     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 454
 455     return GetString( item );
 456 }
 457
 458 void wxRadioBox::SetLabel( const wxString& label )
 459 {
 460     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 461
 462     wxControl::SetLabel( label );
 463
 464     gtk_frame_set_label( GTK_FRAME(m_widget), wxControl::GetLabel().mbc_str() );
 465 }
 466
 467 void wxRadioBox::SetLabel( int item, const wxString& label )
 468 {
 469     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 470
 471     wxNode *node = m_boxes.Nth( item );
 472
 473     wxCHECK_RET( node, wxT("radiobox wrong index") );
 474
 475     GtkButton *button = GTK_BUTTON( node->Data() );
 476     GtkLabel *g_label = GTK_LABEL( button->child );
 477
 478     gtk_label_set( g_label, label.mbc_str() );
 479 }
 480
 481 void wxRadioBox::SetLabel( int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap) )
 482 {
 483     wxFAIL_MSG(wxT("wxRadioBox::SetLabel not implemented."));
 484 }
 485
 486 bool wxRadioBox::Enable( bool enable )
 487 {
 488     if ( !wxControl::Enable( enable ) )
 489         return FALSE;
 490
 491     wxNode *node = m_boxes.First();
 492     while (node)
 493     {
 494         GtkButton *button = GTK_BUTTON( node->Data() );
 495         GtkWidget *label = button->child;
 496         gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 497         gtk_widget_set_sensitive( label, enable );
 498         node = node->Next();
 499     }
 500
 501     return TRUE;
 502 }
 503
 504 void wxRadioBox::Enable( int item, bool enable )
 505 {
 506     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 507
 508     wxNode *node = m_boxes.Nth( item );
 509
 510     wxCHECK_RET( node, wxT("radiobox wrong index") );
 511
 512     GtkButton *button = GTK_BUTTON( node->Data() );
 513     GtkWidget *label = button->child;
 514     gtk_widget_set_sensitive( GTK_WIDGET(button), enable );
 515     gtk_widget_set_sensitive( label, enable );
 516 }
 517
 518 void wxRadioBox::Show( int item, bool show )
 519 {
 520     wxCHECK_RET( m_widget != NULL, wxT("invalid radiobox") );
 521
 522     wxNode *node = m_boxes.Nth( item );
 523
 524     wxCHECK_RET( node, wxT("radiobox wrong index") );
 525
 526     GtkWidget *button = GTK_WIDGET( node->Data() );
 527
 528     if (show)
 529         gtk_widget_show( button );
 530     else
 531         gtk_widget_hide( button );
 532 }
 533
 534 wxString wxRadioBox::GetStringSelection() const
 535 {
 536     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid radiobox") );
 537
 538     wxNode *node = m_boxes.First();
 539     while (node)
 540     {
 541         GtkToggleButton *button = GTK_TOGGLE_BUTTON( node->Data() );
 542         if (button->active)
 543         {
 544             GtkLabel *label = GTK_LABEL( GTK_BUTTON(button)->child );
 545             return label->label;
 546         }
 547         node = node->Next();
 548     }
 549
 550     wxFAIL_MSG( wxT("wxRadioBox none selected") );
 551     return wxT("");
 552 }
 553
 554 bool wxRadioBox::SetStringSelection( const wxString &s )
 555 {
 556     wxCHECK_MSG( m_widget != NULL, FALSE, wxT("invalid radiobox") );
 557
 558     int res = FindString( s );
 559     if (res == -1) return FALSE;
 560     SetSelection( res );
 561
 562     return TRUE;
 563 }
 564
 565 int wxRadioBox::Number() const
 566 {
 567     return m_boxes.Number();
 568 }
 569
 570 int wxRadioBox::GetNumberOfRowsOrCols() const
 571 {
 572     return 1;
 573 }
 574
 575 void wxRadioBox::SetNumberOfRowsOrCols( int WXUNUSED(n) )
 576 {
 577     wxFAIL_MSG(wxT("wxRadioBox::SetNumberOfRowsOrCols not implemented."));
 578 }
 579
 580 void wxRadioBox::GtkDisableEvents()
 581 {
 582     wxNode *node = m_boxes.First();
 583     while (node)
 584     {
 585         gtk_signal_disconnect_by_func( GTK_OBJECT(node->Data()),
 586            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 587
 588         node = node->Next();
 589     }
 590 }
 591
 592 void wxRadioBox::GtkEnableEvents()
 593 {
 594     wxNode *node = m_boxes.First();
 595     while (node)
 596     {
 597         gtk_signal_connect( GTK_OBJECT(node->Data()), "clicked",
 598            GTK_SIGNAL_FUNC(gtk_radiobutton_clicked_callback), (gpointer*)this );
 599
 600         node = node->Next();
 601     }
 602 }
 603
 604 void wxRadioBox::ApplyWidgetStyle()
 605 {
 606     SetWidgetStyle();
 607
 608     gtk_widget_set_style( m_widget, m_widgetStyle );
 609
 610     wxNode *node = m_boxes.First();
 611     while (node)
 612     {
 613         GtkWidget *widget = GTK_WIDGET( node->Data() );
 614         gtk_widget_set_style( widget, m_widgetStyle );
 615
 616         GtkButton *button = GTK_BUTTON( node->Data() );
 617         gtk_widget_set_style( button->child, m_widgetStyle );
 618
 619         node = node->Next();
 620     }
 621 }
 622
 623 #if wxUSE_TOOLTIPS
 624 void wxRadioBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 625 {
 626     wxNode *node = m_boxes.First();
 627     while (node)
 628     {
 629         GtkWidget *widget = GTK_WIDGET( node->Data() );
 630         gtk_tooltips_set_tip( tips, widget, wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 631         node = node->Next();
 632     }
 633 }
 634 #endif // wxUSE_TOOLTIPS
 635
 636 bool wxRadioBox::IsOwnGtkWindow( GdkWindow *window )
 637 {
 638     if (window == m_widget->window) return TRUE;
 639
 640     wxNode *node = m_boxes.First();
 641     while (node)
 642     {
 643         GtkWidget *button = GTK_WIDGET( node->Data() );
 644
 645         if (window == button->window) return TRUE;
 646
 647         node = node->Next();
 648     }
 649
 650     return FALSE;
 651 }
 652
 653 #endif