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 #include "wx/dialog.h"
  16 #include "wx/menu.h"
  17 #include <wx/intl.h>
  18
  19 #include "glib.h"
  20 #include "gdk/gdk.h"
  21 #include "gtk/gtk.h"
  22 #include "wx/gtk/win_gtk.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // constants
  26 //-----------------------------------------------------------------------------
  27
  28 const int wxMENU_HEIGHT = 27;
  29
  30 //-----------------------------------------------------------------------------
  31 // idle system
  32 //-----------------------------------------------------------------------------
  33
  34 extern void wxapp_install_idle_handler();
  35 extern bool g_isIdle;
  36
  37 //-----------------------------------------------------------------------------
  38 // globals
  39 //-----------------------------------------------------------------------------
  40
  41 extern wxList wxPendingDelete;
  42
  43 //-----------------------------------------------------------------------------
  44 // wxMDIParentFrame
  45 //-----------------------------------------------------------------------------
  46
  47 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)
  48
  49 BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
  50 END_EVENT_TABLE()
  51
  52 wxMDIParentFrame::wxMDIParentFrame()
  53 {
  54     m_justInserted = FALSE;
  55     m_clientWindow = (wxMDIClientWindow *) NULL;
  56 }
  57
  58 wxMDIParentFrame::wxMDIParentFrame( wxWindow *parent,
  59       wxWindowID id, const wxString& title,
  60       const wxPoint& pos, const wxSize& size,
  61       long style, const wxString& name )
  62 {
  63     m_justInserted = FALSE;
  64     m_clientWindow = (wxMDIClientWindow *) NULL;
  65     Create( parent, id, title, pos, size, style, name );
  66 }
  67
  68 wxMDIParentFrame::~wxMDIParentFrame()
  69 {
  70 }
  71
  72 bool wxMDIParentFrame::Create( wxWindow *parent,
  73       wxWindowID id, const wxString& title,
  74       const wxPoint& pos, const wxSize& size,
  75       long style, const wxString& name )
  76 {
  77     wxFrame::Create( parent, id, title, pos, size, style, name );
  78
  79     OnCreateClient();
  80
  81     return TRUE;
  82 }
  83
  84 void wxMDIParentFrame::GtkOnSize( int x, int y, int width, int height )
  85 {
  86     wxFrame::GtkOnSize( x, y, width, height );
  87
  88     wxMDIChildFrame *child_frame = GetActiveChild();
  89     if (!child_frame) return;
  90
  91     wxMenuBar *menu_bar = child_frame->m_menuBar;
  92     if (!menu_bar) return;
  93     if (!menu_bar->m_widget) return;
  94
  95     menu_bar->m_x = 0;
  96     menu_bar->m_y = 0;
  97     menu_bar->m_width = m_width;
  98     menu_bar->m_height = wxMENU_HEIGHT;
  99     gtk_myfixed_set_size( GTK_MYFIXED(m_mainWidget),
 100                           menu_bar->m_widget,
 101                           0, 0, m_width, wxMENU_HEIGHT );
 102 }
 103
 104 void wxMDIParentFrame::OnInternalIdle()
 105 {
 106     /* if a an MDI child window has just been inserted
 107        it has to be brought to the top in idle time. we
 108        simply set the last notebook page active as new
 109        pages can only be appended at the end */
 110
 111     if (m_justInserted)
 112     {
 113         GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
 114         gtk_notebook_set_page( notebook, g_list_length( notebook->children ) - 1 );
 115
 116         m_justInserted = FALSE;
 117         return;
 118     }
 119
 120     wxFrame::OnInternalIdle();
 121
 122     wxMDIChildFrame *active_child_frame = GetActiveChild();
 123     bool visible_child_menu = FALSE;
 124
 125     wxNode *node = m_clientWindow->GetChildren().First();
 126     while (node)
 127     {
 128         wxMDIChildFrame *child_frame = (wxMDIChildFrame *)node->Data();
 129         if (child_frame->m_menuBar)
 130         {
 131             if (child_frame == active_child_frame)
 132             {
 133                gtk_widget_show( child_frame->m_menuBar->m_widget );
 134                visible_child_menu = TRUE;
 135             }
 136             else
 137                gtk_widget_hide( child_frame->m_menuBar->m_widget );
 138         }
 139         node = node->Next();
 140     }
 141
 142     /* show/hide parent menu bar as required */
 143     if (m_frameMenuBar) m_frameMenuBar->Show( !visible_child_menu );
 144 }
 145
 146 void wxMDIParentFrame::GetClientSize(int *width, int *height ) const
 147 {
 148     wxFrame::GetClientSize( width, height );
 149 }
 150
 151 wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 152 {
 153     if (!m_clientWindow) return (wxMDIChildFrame*) NULL;
 154
 155     GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
 156     if (!notebook) return (wxMDIChildFrame*) NULL;
 157
 158 #if (GTK_MINOR_VERSION > 0)
 159     gint i = gtk_notebook_get_current_page( notebook );
 160 #else
 161     gint i = gtk_notebook_current_page( notebook );
 162 #endif
 163     if (i < 0) return (wxMDIChildFrame*) NULL;
 164
 165     GtkNotebookPage* page = (GtkNotebookPage*) (g_list_nth(notebook->children,i)->data);
 166     if (!page) return (wxMDIChildFrame*) NULL;
 167
 168     wxNode *node = m_clientWindow->GetChildren().First();
 169     while (node)
 170     {
 171         wxMDIChildFrame *child_frame = (wxMDIChildFrame *)node->Data();
 172         if (child_frame->m_page == page)
 173             return child_frame;
 174         node = node->Next();
 175     }
 176
 177     return (wxMDIChildFrame*) NULL;
 178 }
 179
 180 wxMDIClientWindow *wxMDIParentFrame::GetClientWindow() const
 181 {
 182     return m_clientWindow;
 183 }
 184
 185 wxMDIClientWindow *wxMDIParentFrame::OnCreateClient()
 186 {
 187     m_clientWindow = new wxMDIClientWindow( this );
 188     return m_clientWindow;
 189 }
 190
 191 void wxMDIParentFrame::ActivateNext()
 192 {
 193     if (m_clientWindow)
 194       gtk_notebook_next_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
 195 }
 196
 197 void wxMDIParentFrame::ActivatePrevious()
 198 {
 199     if (m_clientWindow)
 200       gtk_notebook_prev_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
 201 }
 202
 203 void wxMDIParentFrame::OnActivate( wxActivateEvent& WXUNUSED(event) )
 204 {
 205 }
 206
 207 void wxMDIParentFrame::OnSysColourChanged( wxSysColourChangedEvent& WXUNUSED(event) )
 208 {
 209 }
 210
 211 //-----------------------------------------------------------------------------
 212 // wxMDIChildFrame
 213 //-----------------------------------------------------------------------------
 214
 215 IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
 216
 217 BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
 218     EVT_ACTIVATE(wxMDIChildFrame::OnActivate)
 219 END_EVENT_TABLE()
 220
 221 wxMDIChildFrame::wxMDIChildFrame()
 222 {
 223     m_menuBar = (wxMenuBar *) NULL;
 224     m_page = (GtkNotebookPage *) NULL;
 225 }
 226
 227 wxMDIChildFrame::wxMDIChildFrame( wxMDIParentFrame *parent,
 228       wxWindowID id, const wxString& title,
 229       const wxPoint& WXUNUSED(pos), const wxSize& size,
 230       long style, const wxString& name )
 231 {
 232     m_menuBar = (wxMenuBar *) NULL;
 233     m_page = (GtkNotebookPage *) NULL;
 234     Create( parent, id, title, wxDefaultPosition, size, style, name );
 235 }
 236
 237 wxMDIChildFrame::~wxMDIChildFrame()
 238 {
 239     if (m_menuBar)
 240         delete m_menuBar;
 241 }
 242
 243 bool wxMDIChildFrame::Create( wxMDIParentFrame *parent,
 244       wxWindowID id, const wxString& title,
 245       const wxPoint& WXUNUSED(pos), const wxSize& size,
 246       long style, const wxString& name )
 247 {
 248     m_title = title;
 249
 250     return wxWindow::Create( parent->GetClientWindow(), id, wxDefaultPosition, size, style, name );
 251 }
 252
 253 void wxMDIChildFrame::GetClientSize( int *width, int *height ) const
 254 {
 255     wxWindow::GetClientSize( width, height );
 256 }
 257
 258 void wxMDIChildFrame::AddChild( wxWindow *child )
 259 {
 260     wxWindow::AddChild( child );
 261 }
 262
 263 static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
 264 {
 265     menu->SetInvokingWindow( win );
 266     wxNode *node = menu->GetItems().First();
 267     while (node)
 268     {
 269         wxMenuItem *menuitem = (wxMenuItem*)node->Data();
 270         if (menuitem->IsSubMenu())
 271             SetInvokingWindow( menuitem->GetSubMenu(), win );
 272         node = node->Next();
 273     }
 274 }
 275
 276 void wxMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar )
 277 {
 278     m_menuBar = menu_bar;
 279
 280     if (m_menuBar)
 281     {
 282         wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent();
 283
 284        if (m_menuBar->GetParent() != this)
 285        {
 286             wxNode *node = m_menuBar->GetMenus().First();
 287             while (node)
 288             {
 289                 wxMenu *menu = (wxMenu*)node->Data();
 290                 SetInvokingWindow( menu, this );
 291                 node = node->Next();
 292             }
 293
 294             m_menuBar->SetParent( mdi_frame );
 295         }
 296
 297         /* the menu bar of the child window is shown in idle time as needed */
 298         gtk_widget_hide( m_menuBar->m_widget );
 299
 300         /* insert the invisible menu bar into the _parent_ mdi frame */
 301         gtk_myfixed_put( GTK_MYFIXED(mdi_frame->m_mainWidget),
 302                          m_menuBar->m_widget,
 303                          0, 0,  mdi_frame->m_width, wxMENU_HEIGHT );
 304     }
 305 }
 306
 307 wxMenuBar *wxMDIChildFrame::GetMenuBar() const
 308 {
 309     return m_menuBar;
 310 }
 311
 312 void wxMDIChildFrame::Activate()
 313 {
 314 }
 315
 316 void wxMDIChildFrame::OnActivate( wxActivateEvent &WXUNUSED(event) )
 317 {
 318 }
 319
 320 //-----------------------------------------------------------------------------
 321 // "size_allocate"
 322 //-----------------------------------------------------------------------------
 323
 324 static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
 325 {
 326     if (g_isIdle) wxapp_install_idle_handler();
 327
 328     if ((win->m_x == alloc->x) &&
 329         (win->m_y == alloc->y) &&
 330         (win->m_width == alloc->width) &&
 331         (win->m_height == alloc->height) &&
 332         (win->m_sizeSet))
 333     {
 334         return;
 335     }
 336
 337     win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
 338 }
 339
 340 //-----------------------------------------------------------------------------
 341 // InsertChild callback for wxMDIClientWindow
 342 //-----------------------------------------------------------------------------
 343
 344 static void wxInsertChildInMDI( wxMDIClientWindow* parent, wxMDIChildFrame* child )
 345 {
 346     wxString s = child->m_title;
 347     if (s.IsNull()) s = _("MDI child");
 348
 349     GtkWidget *label_widget = gtk_label_new( s.mbc_str() );
 350     gtk_misc_set_alignment( GTK_MISC(label_widget), 0.0, 0.5 );
 351
 352     gtk_signal_connect( GTK_OBJECT(child->m_widget), "size_allocate",
 353       GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)child );
 354
 355     GtkNotebook *notebook = GTK_NOTEBOOK(parent->m_widget);
 356
 357     gtk_notebook_append_page( notebook, child->m_widget, label_widget );
 358
 359     child->m_page = (GtkNotebookPage*) (g_list_last(notebook->children)->data);
 360
 361     wxMDIParentFrame *parent_frame = (wxMDIParentFrame*) parent->GetParent();
 362     parent_frame->m_justInserted = TRUE;
 363 }
 364
 365 //-----------------------------------------------------------------------------
 366 // wxMDIClientWindow
 367 //-----------------------------------------------------------------------------
 368
 369 IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)
 370
 371 wxMDIClientWindow::wxMDIClientWindow()
 372 {
 373 }
 374
 375 wxMDIClientWindow::wxMDIClientWindow( wxMDIParentFrame *parent, long style )
 376 {
 377     CreateClient( parent, style );
 378 }
 379
 380 wxMDIClientWindow::~wxMDIClientWindow()
 381 {
 382 }
 383
 384 bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style )
 385 {
 386     m_needParent = TRUE;
 387
 388     m_insertCallback = (wxInsertChildFunction)wxInsertChildInMDI;
 389
 390     PreCreation( parent, -1, wxPoint(10,10), wxSize(100,100), style, "wxMDIClientWindow" );
 391
 392     m_widget = gtk_notebook_new();
 393
 394     gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 395
 396     m_parent->DoAddChild( this );
 397
 398     PostCreation();
 399
 400     Show( TRUE );
 401
 402     return TRUE;
 403 }
 404