src/motif/menuitem.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        menuitem.cpp
   3 // Purpose:     wxMenuItem implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  15
  16 #include "wx/menu.h"
  17 #include "wx/menuitem.h"
  18 #include "wx/utils.h"
  19 #include "wx/frame.h"
  20
  21 #include <Xm/Label.h>
  22 #include <Xm/LabelG.h>
  23 #include <Xm/CascadeBG.h>
  24 #include <Xm/CascadeB.h>
  25 #include <Xm/SeparatoG.h>
  26 #include <Xm/PushBG.h>
  27 #include <Xm/ToggleB.h>
  28 #include <Xm/ToggleBG.h>
  29 #include <Xm/RowColumn.h>
  30
  31 #include "wx/motif/private.h"
  32
  33 void wxMenuItemCallback (Widget w, XtPointer clientData,
  34                          XtPointer ptr);
  35 void wxMenuItemArmCallback (Widget w, XtPointer clientData,
  36                             XtPointer ptr);
  37 void wxMenuItemDisarmCallback (Widget w, XtPointer clientData,
  38                                XtPointer ptr);
  39
  40 // ============================================================================
  41 // implementation
  42 // ============================================================================
  43
  44 // ----------------------------------------------------------------------------
  45 // dynamic classes implementation
  46 // ----------------------------------------------------------------------------
  47
  48 #if !USE_SHARED_LIBRARY
  49 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem, wxObject)
  50 #endif  //USE_SHARED_LIBRARY
  51
  52 // ----------------------------------------------------------------------------
  53 // wxMenuItem
  54 // ----------------------------------------------------------------------------
  55
  56 // ctor & dtor
  57 // -----------
  58
  59 wxMenuItem::wxMenuItem(wxMenu *pParentMenu, int id,
  60                        const wxString& strName, const wxString& strHelp,
  61                        bool bCheckable,
  62                        wxMenu *pSubMenu) :
  63 m_strHelp(strHelp),
  64 m_bCheckable(bCheckable),
  65 m_strName(strName)
  66 {
  67     wxASSERT( pParentMenu != NULL );
  68
  69     m_pParentMenu = pParentMenu;
  70     m_pSubMenu    = pSubMenu;
  71     m_idItem      = id;
  72     m_bEnabled    = TRUE;
  73     m_bChecked    = FALSE;
  74
  75     //// Motif-specific
  76     m_menuBar = NULL;
  77     m_buttonWidget = (WXWidget) NULL;
  78     m_topMenu = NULL;
  79 }
  80
  81 wxMenuItem::~wxMenuItem()
  82 {
  83 }
  84
  85 // misc
  86 // ----
  87
  88 // delete the sub menu
  89 void wxMenuItem::DeleteSubMenu()
  90 {
  91     wxASSERT( m_pSubMenu != NULL );
  92
  93     delete m_pSubMenu;
  94     m_pSubMenu = NULL;
  95 }
  96
  97 // change item state
  98 // -----------------
  99
 100 void wxMenuItem::Enable(bool bDoEnable)
 101 {
 102     if ( m_bEnabled != bDoEnable )
 103     {
 104         if ( m_pSubMenu == NULL )
 105         {     // normal menu item
 106             if (m_buttonWidget)
 107                 XtSetSensitive( (Widget) m_buttonWidget, (Boolean) bDoEnable);
 108         }
 109         else                            // submenu
 110         {
 111             // Maybe we should apply this to all items in the submenu?
 112             // Or perhaps it works anyway.
 113             if (m_buttonWidget)
 114                 XtSetSensitive( (Widget) m_buttonWidget, (Boolean) bDoEnable);
 115         }
 116
 117         m_bEnabled = bDoEnable;
 118     }
 119 }
 120
 121 void wxMenuItem::Check(bool bDoCheck)
 122 {
 123     wxCHECK_RET( IsCheckable(), "only checkable items may be checked" );
 124
 125     if ( m_bChecked != bDoCheck )
 126     {
 127         if (m_buttonWidget && XtIsSubclass ((Widget) m_buttonWidget, xmToggleButtonGadgetClass))
 128         {
 129             XtVaSetValues ( (Widget) m_buttonWidget, XmNset, (Boolean) bDoCheck, NULL);
 130         }
 131         m_bChecked = bDoCheck;
 132     }
 133 }
 134
 135 //// Motif-specific
 136
 137 void wxMenuItem::CreateItem (WXWidget menu, wxMenuBar * menuBar, wxMenu * topMenu)
 138 {
 139     m_menuBar = menuBar;
 140     m_topMenu = topMenu;
 141
 142     if (GetId() == -2)
 143     {
 144         // Id=-2 identifies a Title item.
 145         m_buttonWidget = (WXWidget) XtVaCreateManagedWidget
 146             (wxStripMenuCodes(m_strName),
 147             xmLabelGadgetClass, (Widget) menu, NULL);
 148     }
 149     else if ((!m_strName.IsNull() && m_strName != "") && (!m_pSubMenu))
 150     {
 151         wxString strName = wxStripMenuCodes(m_strName);
 152         if (IsCheckable())
 153         {
 154             m_buttonWidget = (WXWidget) XtVaCreateManagedWidget (strName,
 155                 xmToggleButtonGadgetClass, (Widget) menu,
 156                 NULL);
 157             XtVaSetValues ((Widget) m_buttonWidget, XmNset, (Boolean) IsChecked(), NULL);
 158         }
 159         else
 160             m_buttonWidget = (WXWidget) XtVaCreateManagedWidget (strName,
 161             xmPushButtonGadgetClass, (Widget) menu,
 162             NULL);
 163         char mnem = wxFindMnemonic (m_strName);
 164         if (mnem != 0)
 165             XtVaSetValues ((Widget) m_buttonWidget, XmNmnemonic, mnem, NULL);
 166
 167         //// TODO: proper accelerator treatment. What does wxFindAccelerator
 168         //// look for?
 169         strName = m_strName;
 170         char *accel = wxFindAccelerator (strName);
 171         if (accel)
 172             XtVaSetValues ((Widget) m_buttonWidget, XmNaccelerator, accel, NULL);
 173
 174         // TODO: What does this do?
 175         XmString accel_str = wxFindAcceleratorText (strName);
 176         if (accel_str)
 177         {
 178             XtVaSetValues ((Widget) m_buttonWidget, XmNacceleratorText, accel_str, NULL);
 179             XmStringFree (accel_str);
 180         }
 181
 182         if (IsCheckable())
 183             XtAddCallback ((Widget) m_buttonWidget,
 184             XmNvalueChangedCallback,
 185             (XtCallbackProc) wxMenuItemCallback,
 186             (XtPointer) this);
 187         else
 188             XtAddCallback ((Widget) m_buttonWidget,
 189             XmNactivateCallback,
 190             (XtCallbackProc) wxMenuItemCallback,
 191             (XtPointer) this);
 192         XtAddCallback ((Widget) m_buttonWidget,
 193             XmNarmCallback,
 194             (XtCallbackProc) wxMenuItemArmCallback,
 195             (XtPointer) this);
 196         XtAddCallback ((Widget) m_buttonWidget,
 197             XmNdisarmCallback,
 198             (XtCallbackProc) wxMenuItemDisarmCallback,
 199             (XtPointer) this);
 200     }
 201     else if (GetId() == -1)
 202     {
 203         m_buttonWidget = (WXWidget) XtVaCreateManagedWidget ("separator",
 204             xmSeparatorGadgetClass, (Widget) menu, NULL);
 205     }
 206     else if (m_pSubMenu)
 207     {
 208         m_buttonWidget = m_pSubMenu->CreateMenu (menuBar, menu, topMenu, m_strName, TRUE);
 209         m_pSubMenu->SetButtonWidget(m_buttonWidget);
 210         XtAddCallback ((Widget) m_buttonWidget,
 211             XmNcascadingCallback,
 212             (XtCallbackProc) wxMenuItemArmCallback,
 213             (XtPointer) this);
 214     }
 215     if (m_buttonWidget)
 216         XtSetSensitive ((Widget) m_buttonWidget, (Boolean) IsEnabled());
 217 }
 218
 219 void wxMenuItem::DestroyItem(bool full)
 220 {
 221     if (GetId() == -2)
 222     {
 223         ;                       // Nothing
 224
 225     }
 226     else if ((!m_strName.IsNull() && (m_strName != "")) && !m_pSubMenu)
 227     {
 228         if (m_buttonWidget)
 229         {
 230             if (IsCheckable())
 231                 XtRemoveCallback ((Widget) m_buttonWidget, XmNvalueChangedCallback,
 232                 wxMenuItemCallback, (XtPointer) this);
 233             else
 234                 XtRemoveCallback ((Widget) m_buttonWidget, XmNactivateCallback,
 235                 wxMenuItemCallback, (XtPointer) this);
 236             XtRemoveCallback ((Widget) m_buttonWidget, XmNarmCallback,
 237                 wxMenuItemArmCallback, (XtPointer) this);
 238             XtRemoveCallback ((Widget) m_buttonWidget, XmNdisarmCallback,
 239                 wxMenuItemDisarmCallback, (XtPointer) this);
 240         }
 241     }
 242     else if (GetId() == -1)
 243     {
 244         ;                       // Nothing
 245
 246     }
 247     else if (GetSubMenu())
 248     {
 249         if (m_buttonWidget)
 250         {
 251             XtRemoveCallback ((Widget) m_buttonWidget, XmNcascadingCallback,
 252                 wxMenuItemArmCallback, (XtPointer) this);
 253         }
 254         m_pSubMenu->DestroyMenu(full);
 255         if (full)
 256             m_buttonWidget = NULL;
 257     }
 258
 259     if (m_buttonWidget && full)
 260     {
 261         XtDestroyWidget ((Widget) m_buttonWidget);
 262         m_buttonWidget = (WXWidget) 0;
 263     }
 264 }
 265
 266 void wxMenuItem::SetLabel(const wxString& label)
 267 {
 268     char mnem = wxFindMnemonic (label);
 269     wxString label2 = wxStripMenuCodes(label);
 270
 271     m_strName = label;
 272
 273     if (m_buttonWidget)
 274     {
 275         wxXmString label_str(label2);
 276         XtVaSetValues ((Widget) m_buttonWidget,
 277             XmNlabelString, label_str,
 278             NULL);
 279         if (mnem != 0)
 280             XtVaSetValues ((Widget) m_buttonWidget, XmNmnemonic, mnem, NULL);
 281         char *accel = wxFindAccelerator (label2);
 282         if (accel)
 283             XtVaSetValues ((Widget) m_buttonWidget, XmNaccelerator, accel, NULL);
 284
 285         XmString accel_str = wxFindAcceleratorText (label2);
 286         if (accel_str)
 287         {
 288             XtVaSetValues ((Widget) m_buttonWidget, XmNacceleratorText, accel_str, NULL);
 289             XmStringFree (accel_str);
 290         }
 291     }
 292 }
 293
 294 void wxMenuItemCallback (Widget w, XtPointer clientData,
 295                          XtPointer ptr)
 296 {
 297     wxMenuItem *item = (wxMenuItem *) clientData;
 298     if (item)
 299     {
 300         if (item->IsCheckable())
 301         {
 302             Boolean isChecked = FALSE;
 303             XtVaGetValues ((Widget) item->GetButtonWidget(), XmNset, & isChecked, NULL);
 304             item->SetChecked(isChecked);
 305         }
 306         if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame())
 307         {
 308             wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, item->GetId());
 309             commandEvent.SetEventObject(item->GetMenuBar()->GetMenuBarFrame());
 310             commandEvent.SetInt( item->GetId() );
 311
 312             item->GetMenuBar()->GetMenuBarFrame()->GetEventHandler()->ProcessEvent(commandEvent);
 313         }
 314         else if (item->GetTopMenu())
 315         {
 316             wxCommandEvent event (wxEVT_COMMAND_MENU_SELECTED, item->GetId());
 317             event.SetEventObject(item->GetTopMenu());
 318             event.SetInt( item->GetId() );
 319
 320             item->GetTopMenu()->ProcessCommand (event);
 321         }
 322     }
 323 }
 324
 325 void wxMenuItemArmCallback (Widget w, XtPointer clientData,
 326                        XtPointer ptr)
 327 {
 328     wxMenuItem *item = (wxMenuItem *) clientData;
 329     if (item)
 330     {
 331         if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame())
 332         {
 333             wxMenuEvent menuEvent(wxEVT_MENU_HIGHLIGHT, item->GetId());
 334             menuEvent.SetEventObject(item->GetMenuBar()->GetMenuBarFrame());
 335
 336             item->GetMenuBar()->GetMenuBarFrame()->GetEventHandler()->ProcessEvent(menuEvent);
 337         }
 338     }
 339 }
 340
 341 void
 342 wxMenuItemDisarmCallback (Widget w, XtPointer clientData,
 343                           XtPointer ptr)
 344 {
 345     wxMenuItem *item = (wxMenuItem *) clientData;
 346     if (item)
 347     {
 348         if (item->GetMenuBar() && item->GetMenuBar()->GetMenuBarFrame())
 349         {
 350             // TODO: not sure this is correct, since -1 means something
 351             // special to event system
 352             wxMenuEvent menuEvent(wxEVT_MENU_HIGHLIGHT, -1);
 353             menuEvent.SetEventObject(item->GetMenuBar()->GetMenuBarFrame());
 354
 355             item->GetMenuBar()->GetMenuBarFrame()->GetEventHandler()->ProcessEvent(menuEvent);
 356         }
 357     }
 358 }
 359