| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk1/mdi.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | // For compilers that support precompilation, includes "wx.h". |
| 11 | #include "wx/wxprec.h" |
| 12 | |
| 13 | #if wxUSE_MDI |
| 14 | |
| 15 | #include "wx/mdi.h" |
| 16 | |
| 17 | #ifndef WX_PRECOMP |
| 18 | #include "wx/intl.h" |
| 19 | #include "wx/menu.h" |
| 20 | #include "wx/dialog.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/notebook.h" |
| 24 | #include "wx/gtk1/private.h" |
| 25 | |
| 26 | #include <glib.h> |
| 27 | #include <gdk/gdk.h> |
| 28 | #include <gtk/gtk.h> |
| 29 | #include "wx/gtk1/win_gtk.h" |
| 30 | |
| 31 | //----------------------------------------------------------------------------- |
| 32 | // constants |
| 33 | //----------------------------------------------------------------------------- |
| 34 | |
| 35 | const int wxMENU_HEIGHT = 27; |
| 36 | |
| 37 | //----------------------------------------------------------------------------- |
| 38 | // idle system |
| 39 | //----------------------------------------------------------------------------- |
| 40 | |
| 41 | extern void wxapp_install_idle_handler(); |
| 42 | extern bool g_isIdle; |
| 43 | |
| 44 | //----------------------------------------------------------------------------- |
| 45 | // globals |
| 46 | //----------------------------------------------------------------------------- |
| 47 | |
| 48 | //----------------------------------------------------------------------------- |
| 49 | // "switch_page" |
| 50 | //----------------------------------------------------------------------------- |
| 51 | |
| 52 | extern "C" { |
| 53 | static void |
| 54 | gtk_mdi_page_change_callback( GtkNotebook *WXUNUSED(widget), |
| 55 | GtkNotebookPage *page, |
| 56 | gint WXUNUSED(page_num), |
| 57 | wxMDIParentFrame *parent ) |
| 58 | { |
| 59 | if (g_isIdle) |
| 60 | wxapp_install_idle_handler(); |
| 61 | |
| 62 | // send deactivate event to old child |
| 63 | |
| 64 | wxMDIChildFrame *child = parent->GetActiveChild(); |
| 65 | if (child) |
| 66 | { |
| 67 | wxActivateEvent event1( wxEVT_ACTIVATE, false, child->GetId() ); |
| 68 | event1.SetEventObject( child); |
| 69 | child->HandleWindowEvent( event1 ); |
| 70 | } |
| 71 | |
| 72 | // send activate event to new child |
| 73 | |
| 74 | wxMDIClientWindowBase * const client_window = parent->GetClientWindow(); |
| 75 | if ( !client_window ) |
| 76 | return; |
| 77 | |
| 78 | child = NULL; |
| 79 | |
| 80 | wxWindowList::compatibility_iterator node = client_window->GetChildren().GetFirst(); |
| 81 | while (node) |
| 82 | { |
| 83 | wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame ); |
| 84 | // CE: we come here in the destructor with a null child_frame - I think because |
| 85 | // gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page", (see below) |
| 86 | // isn't deleted early enough |
| 87 | if (!child_frame) |
| 88 | return ; |
| 89 | |
| 90 | if (child_frame->m_page == page) |
| 91 | { |
| 92 | child = child_frame; |
| 93 | break; |
| 94 | } |
| 95 | node = node->GetNext(); |
| 96 | } |
| 97 | |
| 98 | if (!child) |
| 99 | return; |
| 100 | |
| 101 | wxActivateEvent event2( wxEVT_ACTIVATE, true, child->GetId() ); |
| 102 | event2.SetEventObject( child); |
| 103 | child->HandleWindowEvent( event2 ); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | //----------------------------------------------------------------------------- |
| 108 | // wxMDIParentFrame |
| 109 | //----------------------------------------------------------------------------- |
| 110 | |
| 111 | IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame) |
| 112 | |
| 113 | void wxMDIParentFrame::Init() |
| 114 | { |
| 115 | m_justInserted = false; |
| 116 | m_clientWindow = NULL; |
| 117 | } |
| 118 | |
| 119 | bool wxMDIParentFrame::Create(wxWindow *parent, |
| 120 | wxWindowID id, |
| 121 | const wxString& title, |
| 122 | const wxPoint& pos, |
| 123 | const wxSize& size, |
| 124 | long style, |
| 125 | const wxString& name ) |
| 126 | { |
| 127 | if ( !wxFrame::Create( parent, id, title, pos, size, style, name ) ) |
| 128 | return false; |
| 129 | |
| 130 | m_clientWindow = OnCreateClient(); |
| 131 | if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) ) |
| 132 | return false; |
| 133 | |
| 134 | return true; |
| 135 | } |
| 136 | |
| 137 | void wxMDIParentFrame::GtkOnSize( int x, int y, int width, int height ) |
| 138 | { |
| 139 | wxFrame::GtkOnSize( x, y, width, height ); |
| 140 | |
| 141 | wxMDIChildFrame *child_frame = GetActiveChild(); |
| 142 | if (!child_frame) return; |
| 143 | |
| 144 | wxMenuBar *menu_bar = child_frame->m_menuBar; |
| 145 | if (!menu_bar) return; |
| 146 | if (!menu_bar->m_widget) return; |
| 147 | |
| 148 | menu_bar->m_x = 0; |
| 149 | menu_bar->m_y = 0; |
| 150 | menu_bar->m_width = m_width; |
| 151 | menu_bar->m_height = wxMENU_HEIGHT; |
| 152 | gtk_pizza_set_size( GTK_PIZZA(m_mainWidget), |
| 153 | menu_bar->m_widget, |
| 154 | 0, 0, m_width, wxMENU_HEIGHT ); |
| 155 | } |
| 156 | |
| 157 | void wxMDIParentFrame::OnInternalIdle() |
| 158 | { |
| 159 | /* if a an MDI child window has just been inserted |
| 160 | it has to be brought to the top in idle time. we |
| 161 | simply set the last notebook page active as new |
| 162 | pages can only be appended at the end */ |
| 163 | |
| 164 | if (m_justInserted) |
| 165 | { |
| 166 | GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget); |
| 167 | gtk_notebook_set_page( notebook, g_list_length( notebook->children ) - 1 ); |
| 168 | |
| 169 | /* need to set the menubar of the child */ |
| 170 | wxMDIChildFrame *active_child_frame = GetActiveChild(); |
| 171 | if (active_child_frame != NULL) |
| 172 | { |
| 173 | wxMenuBar *menu_bar = active_child_frame->m_menuBar; |
| 174 | if (menu_bar) |
| 175 | { |
| 176 | menu_bar->m_width = m_width; |
| 177 | menu_bar->m_height = wxMENU_HEIGHT; |
| 178 | gtk_pizza_set_size( GTK_PIZZA(m_mainWidget), |
| 179 | menu_bar->m_widget, |
| 180 | 0, 0, m_width, wxMENU_HEIGHT ); |
| 181 | menu_bar->SetInvokingWindow(active_child_frame); |
| 182 | } |
| 183 | } |
| 184 | m_justInserted = false; |
| 185 | return; |
| 186 | } |
| 187 | |
| 188 | wxFrame::OnInternalIdle(); |
| 189 | |
| 190 | wxMDIChildFrame *active_child_frame = GetActiveChild(); |
| 191 | bool visible_child_menu = false; |
| 192 | |
| 193 | wxWindowList::compatibility_iterator node = m_clientWindow->GetChildren().GetFirst(); |
| 194 | while (node) |
| 195 | { |
| 196 | wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame ); |
| 197 | |
| 198 | if ( child_frame ) |
| 199 | { |
| 200 | wxMenuBar *menu_bar = child_frame->m_menuBar; |
| 201 | if ( menu_bar ) |
| 202 | { |
| 203 | if (child_frame == active_child_frame) |
| 204 | { |
| 205 | if (menu_bar->Show(true)) |
| 206 | { |
| 207 | menu_bar->m_width = m_width; |
| 208 | menu_bar->m_height = wxMENU_HEIGHT; |
| 209 | gtk_pizza_set_size( GTK_PIZZA(m_mainWidget), |
| 210 | menu_bar->m_widget, |
| 211 | 0, 0, m_width, wxMENU_HEIGHT ); |
| 212 | menu_bar->SetInvokingWindow( child_frame ); |
| 213 | } |
| 214 | visible_child_menu = true; |
| 215 | } |
| 216 | else |
| 217 | { |
| 218 | if (menu_bar->Show(false)) |
| 219 | { |
| 220 | menu_bar->UnsetInvokingWindow( child_frame ); |
| 221 | } |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | node = node->GetNext(); |
| 227 | } |
| 228 | |
| 229 | /* show/hide parent menu bar as required */ |
| 230 | if ((m_frameMenuBar) && |
| 231 | (m_frameMenuBar->IsShown() == visible_child_menu)) |
| 232 | { |
| 233 | if (visible_child_menu) |
| 234 | { |
| 235 | m_frameMenuBar->Show( false ); |
| 236 | m_frameMenuBar->UnsetInvokingWindow( this ); |
| 237 | } |
| 238 | else |
| 239 | { |
| 240 | m_frameMenuBar->Show( true ); |
| 241 | m_frameMenuBar->SetInvokingWindow( this ); |
| 242 | |
| 243 | m_frameMenuBar->m_width = m_width; |
| 244 | m_frameMenuBar->m_height = wxMENU_HEIGHT; |
| 245 | gtk_pizza_set_size( GTK_PIZZA(m_mainWidget), |
| 246 | m_frameMenuBar->m_widget, |
| 247 | 0, 0, m_width, wxMENU_HEIGHT ); |
| 248 | } |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const |
| 253 | { |
| 254 | if (!m_clientWindow) return NULL; |
| 255 | |
| 256 | GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget); |
| 257 | if (!notebook) return NULL; |
| 258 | |
| 259 | gint i = gtk_notebook_get_current_page( notebook ); |
| 260 | if (i < 0) return NULL; |
| 261 | |
| 262 | GtkNotebookPage* page = (GtkNotebookPage*) (g_list_nth(notebook->children,i)->data); |
| 263 | if (!page) return NULL; |
| 264 | |
| 265 | wxWindowList::compatibility_iterator node = m_clientWindow->GetChildren().GetFirst(); |
| 266 | while (node) |
| 267 | { |
| 268 | wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame ); |
| 269 | |
| 270 | wxASSERT_MSG( child_frame, _T("child is not a wxMDIChildFrame") ); |
| 271 | |
| 272 | if (child_frame->m_page == page) |
| 273 | return child_frame; |
| 274 | node = node->GetNext(); |
| 275 | } |
| 276 | |
| 277 | return NULL; |
| 278 | } |
| 279 | |
| 280 | void wxMDIParentFrame::ActivateNext() |
| 281 | { |
| 282 | if (m_clientWindow) |
| 283 | gtk_notebook_next_page( GTK_NOTEBOOK(m_clientWindow->m_widget) ); |
| 284 | } |
| 285 | |
| 286 | void wxMDIParentFrame::ActivatePrevious() |
| 287 | { |
| 288 | if (m_clientWindow) |
| 289 | gtk_notebook_prev_page( GTK_NOTEBOOK(m_clientWindow->m_widget) ); |
| 290 | } |
| 291 | |
| 292 | //----------------------------------------------------------------------------- |
| 293 | // wxMDIChildFrame |
| 294 | //----------------------------------------------------------------------------- |
| 295 | |
| 296 | IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame) |
| 297 | |
| 298 | BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame) |
| 299 | EVT_ACTIVATE(wxMDIChildFrame::OnActivate) |
| 300 | EVT_MENU_HIGHLIGHT_ALL(wxMDIChildFrame::OnMenuHighlight) |
| 301 | END_EVENT_TABLE() |
| 302 | |
| 303 | void wxMDIChildFrame::Init() |
| 304 | { |
| 305 | m_menuBar = NULL; |
| 306 | m_page = NULL; |
| 307 | } |
| 308 | |
| 309 | bool wxMDIChildFrame::Create( wxMDIParentFrame *parent, |
| 310 | wxWindowID id, const wxString& title, |
| 311 | const wxPoint& WXUNUSED(pos), const wxSize& size, |
| 312 | long style, const wxString& name ) |
| 313 | { |
| 314 | m_title = title; |
| 315 | |
| 316 | return wxWindow::Create( parent->GetClientWindow(), id, wxDefaultPosition, size, style, name ); |
| 317 | } |
| 318 | |
| 319 | wxMDIChildFrame::~wxMDIChildFrame() |
| 320 | { |
| 321 | delete m_menuBar; |
| 322 | } |
| 323 | |
| 324 | void wxMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar ) |
| 325 | { |
| 326 | wxASSERT_MSG( m_menuBar == NULL, wxT("Only one menubar allowed") ); |
| 327 | |
| 328 | m_menuBar = menu_bar; |
| 329 | |
| 330 | if (m_menuBar) |
| 331 | { |
| 332 | wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent(); |
| 333 | |
| 334 | m_menuBar->SetParent( mdi_frame ); |
| 335 | |
| 336 | /* insert the invisible menu bar into the _parent_ mdi frame */ |
| 337 | gtk_pizza_put( GTK_PIZZA(mdi_frame->m_mainWidget), |
| 338 | m_menuBar->m_widget, |
| 339 | 0, 0, mdi_frame->m_width, wxMENU_HEIGHT ); |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | wxMenuBar *wxMDIChildFrame::GetMenuBar() const |
| 344 | { |
| 345 | return m_menuBar; |
| 346 | } |
| 347 | |
| 348 | GtkNotebook *wxMDIChildFrame::GTKGetNotebook() const |
| 349 | { |
| 350 | wxMDIClientWindow * const |
| 351 | client = wxStaticCast(GetParent(), wxMDIClientWindow); |
| 352 | wxCHECK( client, NULL ); |
| 353 | |
| 354 | return GTK_NOTEBOOK(client->m_widget); |
| 355 | } |
| 356 | |
| 357 | void wxMDIChildFrame::Activate() |
| 358 | { |
| 359 | GtkNotebook * const notebook = GTKGetNotebook(); |
| 360 | wxCHECK_RET( notebook, "no parent notebook?" ); |
| 361 | |
| 362 | gint pageno = gtk_notebook_page_num( notebook, m_widget ); |
| 363 | gtk_notebook_set_page( notebook, pageno ); |
| 364 | } |
| 365 | |
| 366 | void wxMDIChildFrame::OnActivate( wxActivateEvent& WXUNUSED(event) ) |
| 367 | { |
| 368 | } |
| 369 | |
| 370 | void wxMDIChildFrame::OnMenuHighlight( wxMenuEvent& event ) |
| 371 | { |
| 372 | #if wxUSE_STATUSBAR |
| 373 | wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent(); |
| 374 | if ( !ShowMenuHelp(event.GetMenuId()) ) |
| 375 | { |
| 376 | // we don't have any help text for this item, but may be the MDI frame |
| 377 | // does? |
| 378 | mdi_frame->OnMenuHighlight(event); |
| 379 | } |
| 380 | #endif // wxUSE_STATUSBAR |
| 381 | } |
| 382 | |
| 383 | void wxMDIChildFrame::SetTitle( const wxString &title ) |
| 384 | { |
| 385 | if ( title == m_title ) |
| 386 | return; |
| 387 | |
| 388 | m_title = title; |
| 389 | |
| 390 | GtkNotebook * const notebook = GTKGetNotebook(); |
| 391 | wxCHECK_RET( notebook, "no parent notebook?" ); |
| 392 | |
| 393 | gtk_notebook_set_tab_label_text(notebook, m_widget, wxGTK_CONV( title ) ); |
| 394 | } |
| 395 | |
| 396 | //----------------------------------------------------------------------------- |
| 397 | // "size_allocate" |
| 398 | //----------------------------------------------------------------------------- |
| 399 | |
| 400 | extern "C" { |
| 401 | static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win ) |
| 402 | { |
| 403 | if (g_isIdle) wxapp_install_idle_handler(); |
| 404 | |
| 405 | if ((win->m_x == alloc->x) && |
| 406 | (win->m_y == alloc->y) && |
| 407 | (win->m_width == alloc->width) && |
| 408 | (win->m_height == alloc->height) && |
| 409 | (win->m_sizeSet)) |
| 410 | { |
| 411 | return; |
| 412 | } |
| 413 | |
| 414 | win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height ); |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | //----------------------------------------------------------------------------- |
| 419 | // InsertChild callback for wxMDIClientWindow |
| 420 | //----------------------------------------------------------------------------- |
| 421 | |
| 422 | static void wxInsertChildInMDI( wxMDIClientWindow* parent, wxMDIChildFrame* child ) |
| 423 | { |
| 424 | wxString s = child->GetTitle(); |
| 425 | if (s.IsNull()) s = _("MDI child"); |
| 426 | |
| 427 | GtkWidget *label_widget = gtk_label_new( s.mbc_str() ); |
| 428 | gtk_misc_set_alignment( GTK_MISC(label_widget), 0.0, 0.5 ); |
| 429 | |
| 430 | gtk_signal_connect( GTK_OBJECT(child->m_widget), "size_allocate", |
| 431 | GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)child ); |
| 432 | |
| 433 | GtkNotebook *notebook = GTK_NOTEBOOK(parent->m_widget); |
| 434 | |
| 435 | gtk_notebook_append_page( notebook, child->m_widget, label_widget ); |
| 436 | |
| 437 | child->m_page = (GtkNotebookPage*) (g_list_last(notebook->children)->data); |
| 438 | |
| 439 | wxMDIParentFrame *parent_frame = (wxMDIParentFrame*) parent->GetParent(); |
| 440 | parent_frame->m_justInserted = true; |
| 441 | } |
| 442 | |
| 443 | //----------------------------------------------------------------------------- |
| 444 | // wxMDIClientWindow |
| 445 | //----------------------------------------------------------------------------- |
| 446 | |
| 447 | IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow) |
| 448 | |
| 449 | bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style ) |
| 450 | { |
| 451 | m_needParent = true; |
| 452 | |
| 453 | m_insertCallback = (wxInsertChildFunction)wxInsertChildInMDI; |
| 454 | |
| 455 | if (!PreCreation( parent, wxDefaultPosition, wxDefaultSize ) || |
| 456 | !CreateBase( parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, style, wxDefaultValidator, wxT("wxMDIClientWindow") )) |
| 457 | { |
| 458 | wxFAIL_MSG( wxT("wxMDIClientWindow creation failed") ); |
| 459 | return false; |
| 460 | } |
| 461 | |
| 462 | m_widget = gtk_notebook_new(); |
| 463 | |
| 464 | gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page", |
| 465 | GTK_SIGNAL_FUNC(gtk_mdi_page_change_callback), (gpointer)parent ); |
| 466 | |
| 467 | gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 ); |
| 468 | |
| 469 | m_parent->DoAddChild( this ); |
| 470 | |
| 471 | PostCreation(); |
| 472 | |
| 473 | Show( true ); |
| 474 | |
| 475 | return true; |
| 476 | } |
| 477 | |
| 478 | #endif |