src/gtk/mdi.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        mdi.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 "mdi.h"
  12 #endif
  13
  14 #include "wx/mdi.h"
  15
  16 #if wxUSE_MDI_ARCHITECTURE
  17
  18 #include "wx/dialog.h"
  19 #include "wx/menu.h"
  20 #include <wx/intl.h>
  21
  22 #include "glib.h"
  23 #include "gdk/gdk.h"
  24 #include "gtk/gtk.h"
  25 #include "wx/gtk/win_gtk.h"
  26
  27 //-----------------------------------------------------------------------------
  28 // constants
  29 //-----------------------------------------------------------------------------
  30
  31 const int wxMENU_HEIGHT = 27;
  32
  33 //-----------------------------------------------------------------------------
  34 // idle system
  35 //-----------------------------------------------------------------------------
  36
  37 extern void wxapp_install_idle_handler();
  38 extern bool g_isIdle;
  39
  40 //-----------------------------------------------------------------------------
  41 // globals
  42 //-----------------------------------------------------------------------------
  43
  44 extern wxList wxPendingDelete;
  45
  46 //-----------------------------------------------------------------------------
  47 // wxMDIParentFrame
  48 //-----------------------------------------------------------------------------
  49
  50 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)
  51
  52 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
  53 END_EVENT_TABLE()
  54
  55 wxMDIParentFrame::wxMDIParentFrame()
  56 {
  57     m_justInserted = FALSE;
  58     m_clientWindow = (wxMDIClientWindow *) NULL;
  59 }
  60
  61 wxMDIParentFrame::wxMDIParentFrame( wxWindow *parent,
  62       wxWindowID id, const wxString& title,
  63       const wxPoint& pos, const wxSize& size,
  64       long style, const wxString& name )
  65 {
  66     m_justInserted = FALSE;
  67     m_clientWindow = (wxMDIClientWindow *) NULL;
  68     Create( parent, id, title, pos, size, style, name );
  69 }
  70
  71 wxMDIParentFrame::~wxMDIParentFrame()
  72 {
  73 }
  74
  75 bool wxMDIParentFrame::Create( wxWindow *parent,
  76       wxWindowID id, const wxString& title,
  77       const wxPoint& pos, const wxSize& size,
  78       long style, const wxString& name )
  79 {
  80     wxFrame::Create( parent, id, title, pos, size, style, name );
  81
  82     OnCreateClient();
  83
  84     return TRUE;
  85 }
  86
  87 void wxMDIParentFrame::GtkOnSize( int x, int y, int width, int height )
  88 {
  89     wxFrame::GtkOnSize( x, y, width, height );
  90
  91     wxMDIChildFrame *child_frame = GetActiveChild();
  92     if (!child_frame) return;
  93
  94     wxMenuBar *menu_bar = child_frame->m_menuBar;
  95     if (!menu_bar) return;
  96     if (!menu_bar->m_widget) return;
  97
  98     menu_bar->m_x = 0;
  99     menu_bar->m_y = 0;
 100     menu_bar->m_width = m_width;
 101     menu_bar->m_height = wxMENU_HEIGHT;
 102     gtk_myfixed_set_size( GTK_MYFIXED(m_mainWidget),
 103                           menu_bar->m_widget,
 104                           0, 0, m_width, wxMENU_HEIGHT );
 105 }
 106
 107 void wxMDIParentFrame::OnInternalIdle()
 108 {
 109     /* if a an MDI child window has just been inserted
 110        it has to be brought to the top in idle time. we
 111        simply set the last notebook page active as new
 112        pages can only be appended at the end */
 113
 114     if (m_justInserted)
 115     {
 116         GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
 117         gtk_notebook_set_page( notebook, g_list_length( notebook->children ) - 1 );
 118
 119         m_justInserted = FALSE;
 120         return;
 121     }
 122
 123     wxFrame::OnInternalIdle();
 124
 125     wxMDIChildFrame *active_child_frame = GetActiveChild();
 126     bool visible_child_menu = FALSE;
 127
 128     wxNode *node = m_clientWindow->GetChildren().First();
 129     while (node)
 130     {
 131         wxMDIChildFrame *child_frame = (wxMDIChildFrame *)node->Data();
 132         wxMenuBar *menu_bar = child_frame->m_menuBar;
 133         if (child_frame->m_menuBar)
 134         {
 135             if (child_frame == active_child_frame)
 136             {
 137                 if (menu_bar->Show(TRUE))
 138                 {
 139                     menu_bar->m_width = m_width;
 140                     menu_bar->m_height = wxMENU_HEIGHT;
 141                     gtk_myfixed_set_size( GTK_MYFIXED(m_mainWidget),
 142                                           menu_bar->m_widget,
 143                                           0, 0, m_width, wxMENU_HEIGHT );
 144                     menu_bar->SetInvokingWindow( child_frame );
 145                 }
 146                 visible_child_menu = TRUE;
 147             }
 148             else
 149             {
 150                 if (menu_bar->Show(FALSE))
 151                 {
 152                     menu_bar->UnsetInvokingWindow( child_frame );
 153                 }
 154             }
 155         }
 156         node = node->Next();
 157     }
 158
 159     /* show/hide parent menu bar as required */
 160     if ((m_frameMenuBar) &&
 161         (m_frameMenuBar->IsShown() == visible_child_menu))
 162     {
 163         if (visible_child_menu)
 164         {
 165             m_frameMenuBar->Show( FALSE );
 166             m_frameMenuBar->UnsetInvokingWindow( this );
 167         }
 168         else
 169         {
 170             m_frameMenuBar->Show( TRUE );
 171             m_frameMenuBar->SetInvokingWindow( this );
 172
 173             m_frameMenuBar->m_width = m_width;
 174             m_frameMenuBar->m_height = wxMENU_HEIGHT;
 175             gtk_myfixed_set_size( GTK_MYFIXED(m_mainWidget),
 176                                   m_frameMenuBar->m_widget,
 177                                   0, 0, m_width, wxMENU_HEIGHT );
 178         }
 179     }
 180 }
 181
 182 void wxMDIParentFrame::GetClientSize(int *width, int *height ) const
 183 {
 184     wxFrame::GetClientSize( width, height );
 185 }
 186
 187 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 188 {
 189     if (!m_clientWindow) return (wxMDIChildFrame*) NULL;
 190
 191     GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
 192     if (!notebook) return (wxMDIChildFrame*) NULL;
 193
 194 #if (GTK_MINOR_VERSION > 0)
 195     gint i = gtk_notebook_get_current_page( notebook );
 196 #else
 197     gint i = gtk_notebook_current_page( notebook );
 198 #endif
 199     if (i < 0) return (wxMDIChildFrame*) NULL;
 200
 201     GtkNotebookPage* page = (GtkNotebookPage*) (g_list_nth(notebook->children,i)->data);
 202     if (!page) return (wxMDIChildFrame*) NULL;
 203
 204     wxNode *node = m_clientWindow->GetChildren().First();
 205     while (node)
 206     {
 207         wxMDIChildFrame *child_frame = (wxMDIChildFrame *)node->Data();
 208         if (child_frame->m_page == page)
 209             return child_frame;
 210         node = node->Next();
 211     }
 212
 213     return (wxMDIChildFrame*) NULL;
 214 }
 215
 216 wxMDIClientWindow *wxMDIParentFrame::GetClientWindow() const
 217 {
 218     return m_clientWindow;
 219 }
 220
 221 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 222 {
 223     m_clientWindow = new wxMDIClientWindow( this );
 224     return m_clientWindow;
 225 }
 226
 227 void wxMDIParentFrame::ActivateNext()
 228 {
 229     if (m_clientWindow)
 230       gtk_notebook_next_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
 231 }
 232
 233 void wxMDIParentFrame::ActivatePrevious()
 234 {
 235     if (m_clientWindow)
 236       gtk_notebook_prev_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
 237 }
 238
 239 void wxMDIParentFrame::OnActivate( wxActivateEvent& WXUNUSED(event) )
 240 {
 241 }
 242
 243 void wxMDIParentFrame::OnSysColourChanged( wxSysColourChangedEvent& WXUNUSED(event) )
 244 {
 245 }
 246
 247 //-----------------------------------------------------------------------------
 248 // wxMDIChildFrame
 249 //-----------------------------------------------------------------------------
 250
 251 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
 252
 253 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 254     EVT_ACTIVATE(wxMDIChildFrame::OnActivate)
 255 END_EVENT_TABLE()
 256
 257 wxMDIChildFrame::wxMDIChildFrame()
 258 {
 259     m_menuBar = (wxMenuBar *) NULL;
 260     m_page = (GtkNotebookPage *) NULL;
 261 }
 262
 263 wxMDIChildFrame::wxMDIChildFrame( wxMDIParentFrame *parent,
 264       wxWindowID id, const wxString& title,
 265       const wxPoint& WXUNUSED(pos), const wxSize& size,
 266       long style, const wxString& name )
 267 {
 268     m_menuBar = (wxMenuBar *) NULL;
 269     m_page = (GtkNotebookPage *) NULL;
 270     Create( parent, id, title, wxDefaultPosition, size, style, name );
 271 }
 272
 273 wxMDIChildFrame::~wxMDIChildFrame()
 274 {
 275     if (m_menuBar)
 276         delete m_menuBar;
 277 }
 278
 279 bool wxMDIChildFrame::Create( wxMDIParentFrame *parent,
 280       wxWindowID id, const wxString& title,
 281       const wxPoint& WXUNUSED(pos), const wxSize& size,
 282       long style, const wxString& name )
 283 {
 284     m_title = title;
 285
 286     return wxWindow::Create( parent->GetClientWindow(), id, wxDefaultPosition, size, style, name );
 287 }
 288
 289 void wxMDIChildFrame::GetClientSize( int *width, int *height ) const
 290 {
 291     wxWindow::GetClientSize( width, height );
 292 }
 293
 294 void wxMDIChildFrame::AddChild( wxWindow *child )
 295 {
 296     wxWindow::AddChild( child );
 297 }
 298
 299 void wxMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar )
 300 {
 301     wxASSERT_MSG( m_menuBar == NULL, _T("Only one menubar allowed") );
 302
 303     m_menuBar = menu_bar;
 304
 305     if (m_menuBar)
 306     {
 307         wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent();
 308
 309         m_menuBar->SetParent( mdi_frame );
 310
 311         /* insert the invisible menu bar into the _parent_ mdi frame */
 312         gtk_myfixed_put( GTK_MYFIXED(mdi_frame->m_mainWidget),
 313                          m_menuBar->m_widget,
 314                          0, 0,  mdi_frame->m_width, wxMENU_HEIGHT );
 315     }
 316 }
 317
 318 wxMenuBar *wxMDIChildFrame::GetMenuBar() const
 319 {
 320     return m_menuBar;
 321 }
 322
 323 void wxMDIChildFrame::Activate()
 324 {
 325 #if (GTK_MINOR_VERSION > 0)
 326     wxMDIParentFrame* parent = (wxMDIParentFrame*) GetParent();
 327     GtkNotebook* notebook = GTK_NOTEBOOK(parent->m_widget);
 328     gint pageno = gtk_notebook_page_num( notebook, m_page->child );
 329     gtk_notebook_set_page( notebook, pageno );
 330 #else
 331     // the only way I can see to do this under gtk+ 1.0.X would
 332     // be to keep track of page numbers, start at first and
 333     // do "next" enough times to get to this page number - messy
 334     // - J. Russell Smyth
 335 #endif
 336 }
 337
 338 void wxMDIChildFrame::OnActivate( wxActivateEvent &WXUNUSED(event) )
 339 {
 340 }
 341
 342 //-----------------------------------------------------------------------------
 343 // "size_allocate"
 344 //-----------------------------------------------------------------------------
 345
 346 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 347 {
 348     if (g_isIdle) wxapp_install_idle_handler();
 349
 350     if ((win->m_x == alloc->x) &&
 351         (win->m_y == alloc->y) &&
 352         (win->m_width == alloc->width) &&
 353         (win->m_height == alloc->height) &&
 354         (win->m_sizeSet))
 355     {
 356         return;
 357     }
 358
 359     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 360 }
 361
 362 //-----------------------------------------------------------------------------
 363 // InsertChild callback for wxMDIClientWindow
 364 //-----------------------------------------------------------------------------
 365
 366 static void wxInsertChildInMDI( wxMDIClientWindow* parent, wxMDIChildFrame* child )
 367 {
 368     wxString s = child->m_title;
 369     if (s.IsNull()) s = _("MDI child");
 370
 371     GtkWidget *label_widget = gtk_label_new( s.mbc_str() );
 372     gtk_misc_set_alignment( GTK_MISC(label_widget), 0.0, 0.5 );
 373
 374     gtk_signal_connect( GTK_OBJECT(child->m_widget), "size_allocate",
 375       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)child );
 376
 377     GtkNotebook *notebook = GTK_NOTEBOOK(parent->m_widget);
 378
 379     gtk_notebook_append_page( notebook, child->m_widget, label_widget );
 380
 381     child->m_page = (GtkNotebookPage*) (g_list_last(notebook->children)->data);
 382
 383     wxMDIParentFrame *parent_frame = (wxMDIParentFrame*) parent->GetParent();
 384     parent_frame->m_justInserted = TRUE;
 385 }
 386
 387 //-----------------------------------------------------------------------------
 388 // wxMDIClientWindow
 389 //-----------------------------------------------------------------------------
 390
 391 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)
 392
 393 wxMDIClientWindow::wxMDIClientWindow()
 394 {
 395 }
 396
 397 wxMDIClientWindow::wxMDIClientWindow( wxMDIParentFrame *parent, long style )
 398 {
 399     CreateClient( parent, style );
 400 }
 401
 402 wxMDIClientWindow::~wxMDIClientWindow()
 403 {
 404 }
 405
 406 bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style )
 407 {
 408     m_needParent = TRUE;
 409
 410     m_insertCallback = (wxInsertChildFunction)wxInsertChildInMDI;
 411
 412     if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
 413         !CreateBase( parent, -1, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, _T("wxMDIClientWindow") ))
 414     {
 415         wxFAIL_MSG( _T("wxMDIClientWindow creation failed") );
 416         return FALSE;
 417     }
 418
 419     m_widget = gtk_notebook_new();
 420
 421     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 422
 423     m_parent->DoAddChild( this );
 424
 425     PostCreation();
 426
 427     Show( TRUE );
 428
 429     return TRUE;
 430 }
 431
 432 #endif