| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/generic/treebkg.cpp |
| 3 | // Purpose: generic implementation of wxTreebook |
| 4 | // Author: Evgeniy Tarassov, Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 2005-09-15 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2005 Vadim Zeitlin <vadim@wxwidgets.org> |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #if wxUSE_TREEBOOK |
| 28 | |
| 29 | #include "wx/treebook.h" |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include "wx/settings.h" |
| 33 | #endif |
| 34 | |
| 35 | #include "wx/imaglist.h" |
| 36 | |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | // various wxWidgets macros |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | |
| 41 | // check that the page index is valid |
| 42 | #define IS_VALID_PAGE(nPage) ((nPage) < DoInternalGetPageCount()) |
| 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | // event table |
| 46 | // ---------------------------------------------------------------------------- |
| 47 | |
| 48 | IMPLEMENT_DYNAMIC_CLASS(wxTreebook, wxBookCtrlBase) |
| 49 | |
| 50 | wxDEFINE_EVENT( wxEVT_COMMAND_TREEBOOK_PAGE_CHANGING, wxBookCtrlEvent ); |
| 51 | wxDEFINE_EVENT( wxEVT_COMMAND_TREEBOOK_PAGE_CHANGED, wxBookCtrlEvent ); |
| 52 | wxDEFINE_EVENT( wxEVT_COMMAND_TREEBOOK_NODE_COLLAPSED, wxBookCtrlEvent ); |
| 53 | wxDEFINE_EVENT( wxEVT_COMMAND_TREEBOOK_NODE_EXPANDED, wxBookCtrlEvent ); |
| 54 | |
| 55 | BEGIN_EVENT_TABLE(wxTreebook, wxBookCtrlBase) |
| 56 | EVT_TREE_SEL_CHANGED (wxID_ANY, wxTreebook::OnTreeSelectionChange) |
| 57 | EVT_TREE_ITEM_EXPANDED (wxID_ANY, wxTreebook::OnTreeNodeExpandedCollapsed) |
| 58 | EVT_TREE_ITEM_COLLAPSED(wxID_ANY, wxTreebook::OnTreeNodeExpandedCollapsed) |
| 59 | END_EVENT_TABLE() |
| 60 | |
| 61 | // ============================================================================ |
| 62 | // wxTreebook implementation |
| 63 | // ============================================================================ |
| 64 | |
| 65 | // ---------------------------------------------------------------------------- |
| 66 | // wxTreebook creation |
| 67 | // ---------------------------------------------------------------------------- |
| 68 | |
| 69 | void wxTreebook::Init() |
| 70 | { |
| 71 | m_selection = |
| 72 | m_actualSelection = wxNOT_FOUND; |
| 73 | } |
| 74 | |
| 75 | bool |
| 76 | wxTreebook::Create(wxWindow *parent, |
| 77 | wxWindowID id, |
| 78 | const wxPoint& pos, |
| 79 | const wxSize& size, |
| 80 | long style, |
| 81 | const wxString& name) |
| 82 | { |
| 83 | // Check the style flag to have either wxTBK_RIGHT or wxTBK_LEFT |
| 84 | if ( (style & wxBK_ALIGN_MASK) == wxBK_DEFAULT ) |
| 85 | { |
| 86 | style |= wxBK_LEFT; |
| 87 | } |
| 88 | style |= wxTAB_TRAVERSAL; |
| 89 | |
| 90 | // no border for this control, it doesn't look nice together with the tree |
| 91 | style &= ~wxBORDER_MASK; |
| 92 | style |= wxBORDER_NONE; |
| 93 | |
| 94 | if ( !wxControl::Create(parent, id, pos, size, |
| 95 | style, wxDefaultValidator, name) ) |
| 96 | return false; |
| 97 | |
| 98 | m_bookctrl = new wxTreeCtrl |
| 99 | ( |
| 100 | this, |
| 101 | wxID_ANY, |
| 102 | wxDefaultPosition, |
| 103 | wxDefaultSize, |
| 104 | wxBORDER_THEME | |
| 105 | wxTR_DEFAULT_STYLE | |
| 106 | wxTR_HIDE_ROOT | |
| 107 | wxTR_SINGLE |
| 108 | ); |
| 109 | GetTreeCtrl()->SetQuickBestSize(false); // do full size calculation |
| 110 | GetTreeCtrl()->AddRoot(wxEmptyString); // label doesn't matter, it's hidden |
| 111 | |
| 112 | #ifdef __WXMSW__ |
| 113 | // We need to add dummy size event to force possible scrollbar hiding |
| 114 | wxSizeEvent evt; |
| 115 | GetEventHandler()->AddPendingEvent(evt); |
| 116 | #endif |
| 117 | |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | |
| 122 | // insert a new page just before the pagePos |
| 123 | bool wxTreebook::InsertPage(size_t pagePos, |
| 124 | wxWindow *page, |
| 125 | const wxString& text, |
| 126 | bool bSelect, |
| 127 | int imageId) |
| 128 | { |
| 129 | return DoInsertPage(pagePos, page, text, bSelect, imageId); |
| 130 | } |
| 131 | |
| 132 | bool wxTreebook::InsertSubPage(size_t pagePos, |
| 133 | wxWindow *page, |
| 134 | const wxString& text, |
| 135 | bool bSelect, |
| 136 | int imageId) |
| 137 | { |
| 138 | return DoInsertSubPage(pagePos, page, text, bSelect, imageId); |
| 139 | } |
| 140 | |
| 141 | bool wxTreebook::AddPage(wxWindow *page, const wxString& text, bool bSelect, |
| 142 | int imageId) |
| 143 | { |
| 144 | return DoInsertPage(m_treeIds.GetCount(), page, text, bSelect, imageId); |
| 145 | } |
| 146 | |
| 147 | // insertion time is linear to the number of top-pages |
| 148 | bool wxTreebook::AddSubPage(wxWindow *page, const wxString& text, bool bSelect, int imageId) |
| 149 | { |
| 150 | return DoAddSubPage(page, text, bSelect, imageId); |
| 151 | } |
| 152 | |
| 153 | |
| 154 | bool wxTreebook::DoInsertPage(size_t pagePos, |
| 155 | wxWindow *page, |
| 156 | const wxString& text, |
| 157 | bool bSelect, |
| 158 | int imageId) |
| 159 | { |
| 160 | wxCHECK_MSG( pagePos <= DoInternalGetPageCount(), false, |
| 161 | wxT("Invalid treebook page position") ); |
| 162 | |
| 163 | if ( !wxBookCtrlBase::InsertPage(pagePos, page, text, bSelect, imageId) ) |
| 164 | return false; |
| 165 | |
| 166 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 167 | wxTreeItemId newId; |
| 168 | if ( pagePos == DoInternalGetPageCount() ) |
| 169 | { |
| 170 | // append the page to the end |
| 171 | wxTreeItemId rootId = tree->GetRootItem(); |
| 172 | |
| 173 | newId = tree->AppendItem(rootId, text, imageId); |
| 174 | } |
| 175 | else // insert the new page before the given one |
| 176 | { |
| 177 | wxTreeItemId nodeId = m_treeIds[pagePos]; |
| 178 | |
| 179 | wxTreeItemId previousId = tree->GetPrevSibling(nodeId); |
| 180 | wxTreeItemId parentId = tree->GetItemParent(nodeId); |
| 181 | |
| 182 | if ( previousId.IsOk() ) |
| 183 | { |
| 184 | // insert before the sibling - previousId |
| 185 | newId = tree->InsertItem(parentId, previousId, text, imageId); |
| 186 | } |
| 187 | else // no prev siblings -- insert as a first child |
| 188 | { |
| 189 | wxASSERT_MSG( parentId.IsOk(), wxT( "Tree has no root node?" ) ); |
| 190 | |
| 191 | newId = tree->PrependItem(parentId, text, imageId); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | if ( !newId.IsOk() ) |
| 196 | { |
| 197 | //something wrong -> cleaning and returning with false |
| 198 | (void)wxBookCtrlBase::DoRemovePage(pagePos); |
| 199 | |
| 200 | wxFAIL_MSG( wxT("Failed to insert treebook page") ); |
| 201 | return false; |
| 202 | } |
| 203 | |
| 204 | DoInternalAddPage(pagePos, page, newId); |
| 205 | |
| 206 | DoUpdateSelection(bSelect, pagePos); |
| 207 | |
| 208 | return true; |
| 209 | } |
| 210 | |
| 211 | bool wxTreebook::DoAddSubPage(wxWindow *page, const wxString& text, bool bSelect, int imageId) |
| 212 | { |
| 213 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 214 | |
| 215 | wxTreeItemId rootId = tree->GetRootItem(); |
| 216 | |
| 217 | wxTreeItemId lastNodeId = tree->GetLastChild(rootId); |
| 218 | |
| 219 | wxCHECK_MSG( lastNodeId.IsOk(), false, |
| 220 | wxT("Can't insert sub page when there are no pages") ); |
| 221 | |
| 222 | // now calculate its position (should we save/update it too?) |
| 223 | size_t newPos = tree->GetCount() - |
| 224 | (tree->GetChildrenCount(lastNodeId, true) + 1); |
| 225 | |
| 226 | return DoInsertSubPage(newPos, page, text, bSelect, imageId); |
| 227 | } |
| 228 | |
| 229 | bool wxTreebook::DoInsertSubPage(size_t pagePos, |
| 230 | wxTreebookPage *page, |
| 231 | const wxString& text, |
| 232 | bool bSelect, |
| 233 | int imageId) |
| 234 | { |
| 235 | wxTreeItemId parentId = DoInternalGetPage(pagePos); |
| 236 | wxCHECK_MSG( parentId.IsOk(), false, wxT("invalid tree item") ); |
| 237 | |
| 238 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 239 | |
| 240 | size_t newPos = pagePos + tree->GetChildrenCount(parentId, true) + 1; |
| 241 | wxASSERT_MSG( newPos <= DoInternalGetPageCount(), |
| 242 | wxT("Internal error in tree insert point calculation") ); |
| 243 | |
| 244 | if ( !wxBookCtrlBase::InsertPage(newPos, page, text, bSelect, imageId) ) |
| 245 | return false; |
| 246 | |
| 247 | wxTreeItemId newId = tree->AppendItem(parentId, text, imageId); |
| 248 | |
| 249 | if ( !newId.IsOk() ) |
| 250 | { |
| 251 | (void)wxBookCtrlBase::DoRemovePage(newPos); |
| 252 | |
| 253 | wxFAIL_MSG( wxT("Failed to insert treebook page") ); |
| 254 | return false; |
| 255 | } |
| 256 | |
| 257 | DoInternalAddPage(newPos, page, newId); |
| 258 | |
| 259 | DoUpdateSelection(bSelect, newPos); |
| 260 | |
| 261 | return true; |
| 262 | } |
| 263 | |
| 264 | bool wxTreebook::DeletePage(size_t pagePos) |
| 265 | { |
| 266 | wxCHECK_MSG( IS_VALID_PAGE(pagePos), false, wxT("Invalid tree index") ); |
| 267 | |
| 268 | wxTreebookPage *oldPage = DoRemovePage(pagePos); |
| 269 | if ( !oldPage ) |
| 270 | return false; |
| 271 | |
| 272 | delete oldPage; |
| 273 | |
| 274 | return true; |
| 275 | } |
| 276 | |
| 277 | wxTreebookPage *wxTreebook::DoRemovePage(size_t pagePos) |
| 278 | { |
| 279 | wxTreeItemId pageId = DoInternalGetPage(pagePos); |
| 280 | wxCHECK_MSG( pageId.IsOk(), NULL, wxT("Invalid tree index") ); |
| 281 | |
| 282 | wxTreebookPage * oldPage = GetPage(pagePos); |
| 283 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 284 | |
| 285 | size_t subCount = tree->GetChildrenCount(pageId, true); |
| 286 | wxASSERT_MSG ( IS_VALID_PAGE(pagePos + subCount), |
| 287 | wxT("Internal error in wxTreebook::DoRemovePage") ); |
| 288 | |
| 289 | // here we are going to delete ALL the pages in the range |
| 290 | // [pagePos, pagePos + subCount] -- the page and its children |
| 291 | |
| 292 | // deleting all the pages from the base class |
| 293 | for ( size_t i = 0; i <= subCount; ++i ) |
| 294 | { |
| 295 | wxTreebookPage *page = wxBookCtrlBase::DoRemovePage(pagePos); |
| 296 | |
| 297 | // don't delete the page itself though -- it will be deleted in |
| 298 | // DeletePage() when we return |
| 299 | if ( i ) |
| 300 | { |
| 301 | delete page; |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | DoInternalRemovePageRange(pagePos, subCount); |
| 306 | |
| 307 | tree->DeleteChildren( pageId ); |
| 308 | tree->Delete( pageId ); |
| 309 | |
| 310 | return oldPage; |
| 311 | } |
| 312 | |
| 313 | bool wxTreebook::DeleteAllPages() |
| 314 | { |
| 315 | wxBookCtrlBase::DeleteAllPages(); |
| 316 | m_treeIds.Clear(); |
| 317 | m_selection = |
| 318 | m_actualSelection = wxNOT_FOUND; |
| 319 | |
| 320 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 321 | tree->DeleteChildren(tree->GetRootItem()); |
| 322 | |
| 323 | return true; |
| 324 | } |
| 325 | |
| 326 | void wxTreebook::DoInternalAddPage(size_t newPos, |
| 327 | wxTreebookPage *page, |
| 328 | wxTreeItemId pageId) |
| 329 | { |
| 330 | wxASSERT_MSG( newPos <= m_treeIds.GetCount(), wxT("Ivalid index passed to wxTreebook::DoInternalAddPage") ); |
| 331 | |
| 332 | // hide newly inserted page initially (it will be shown when selected) |
| 333 | if ( page ) |
| 334 | page->Hide(); |
| 335 | |
| 336 | if ( newPos == m_treeIds.GetCount() ) |
| 337 | { |
| 338 | // append |
| 339 | m_treeIds.Add(pageId); |
| 340 | } |
| 341 | else // insert |
| 342 | { |
| 343 | m_treeIds.Insert(pageId, newPos); |
| 344 | |
| 345 | if ( m_selection != wxNOT_FOUND && newPos <= (size_t)m_selection ) |
| 346 | { |
| 347 | // selection has been moved one unit toward the end |
| 348 | ++m_selection; |
| 349 | if ( m_actualSelection != wxNOT_FOUND ) |
| 350 | ++m_actualSelection; |
| 351 | } |
| 352 | else if ( m_actualSelection != wxNOT_FOUND && |
| 353 | newPos <= (size_t)m_actualSelection ) |
| 354 | { |
| 355 | DoSetSelection(m_selection); |
| 356 | } |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | void wxTreebook::DoInternalRemovePageRange(size_t pagePos, size_t subCount) |
| 361 | { |
| 362 | // Attention: this function is only for a situation when we delete a node |
| 363 | // with all its children so pagePos is the node's index and subCount is the |
| 364 | // node children count |
| 365 | wxASSERT_MSG( pagePos + subCount < m_treeIds.GetCount(), |
| 366 | wxT("Ivalid page index") ); |
| 367 | |
| 368 | wxTreeItemId pageId = m_treeIds[pagePos]; |
| 369 | |
| 370 | m_treeIds.RemoveAt(pagePos, subCount + 1); |
| 371 | |
| 372 | if ( m_selection != wxNOT_FOUND ) |
| 373 | { |
| 374 | if ( (size_t)m_selection > pagePos + subCount) |
| 375 | { |
| 376 | // selection is far after the deleted page, so just update the index and move on |
| 377 | m_selection -= 1 + subCount; |
| 378 | if ( m_actualSelection != wxNOT_FOUND) |
| 379 | { |
| 380 | m_actualSelection -= subCount + 1; |
| 381 | } |
| 382 | } |
| 383 | else if ( (size_t)m_selection >= pagePos ) |
| 384 | { |
| 385 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 386 | |
| 387 | // as selected page is going to be deleted, try to select the next |
| 388 | // sibling if exists, if not then the parent |
| 389 | wxTreeItemId nodeId = tree->GetNextSibling(pageId); |
| 390 | |
| 391 | m_selection = wxNOT_FOUND; |
| 392 | m_actualSelection = wxNOT_FOUND; |
| 393 | |
| 394 | if ( nodeId.IsOk() ) |
| 395 | { |
| 396 | // selecting next siblings |
| 397 | tree->SelectItem(nodeId); |
| 398 | } |
| 399 | else // no next sibling, select the parent |
| 400 | { |
| 401 | wxTreeItemId parentId = tree->GetItemParent(pageId); |
| 402 | |
| 403 | if ( parentId.IsOk() && parentId != tree->GetRootItem() ) |
| 404 | { |
| 405 | tree->SelectItem(parentId); |
| 406 | } |
| 407 | else // parent is root |
| 408 | { |
| 409 | // we can't select it as it's hidden |
| 410 | DoUpdateSelection(false, wxNOT_FOUND); |
| 411 | } |
| 412 | } |
| 413 | } |
| 414 | else if ( m_actualSelection != wxNOT_FOUND && |
| 415 | (size_t)m_actualSelection >= pagePos ) |
| 416 | { |
| 417 | // nothing to do -- selection is before the deleted node, but |
| 418 | // actually shown page (the first (sub)child with page != NULL) is |
| 419 | // already deleted |
| 420 | m_actualSelection = m_selection; |
| 421 | |
| 422 | // send event as documented |
| 423 | DoSetSelection(m_selection, SetSelection_SendEvent); |
| 424 | } |
| 425 | //else: nothing to do -- selection is before the deleted node |
| 426 | } |
| 427 | else |
| 428 | { |
| 429 | DoUpdateSelection(false, wxNOT_FOUND); |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | |
| 434 | void wxTreebook::DoUpdateSelection(bool bSelect, int newPos) |
| 435 | { |
| 436 | int newSelPos; |
| 437 | if ( bSelect ) |
| 438 | { |
| 439 | newSelPos = newPos; |
| 440 | } |
| 441 | else if ( m_selection == wxNOT_FOUND && DoInternalGetPageCount() > 0 ) |
| 442 | { |
| 443 | newSelPos = 0; |
| 444 | } |
| 445 | else |
| 446 | { |
| 447 | newSelPos = wxNOT_FOUND; |
| 448 | } |
| 449 | |
| 450 | if ( newSelPos != wxNOT_FOUND ) |
| 451 | { |
| 452 | SetSelection((size_t)newSelPos); |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | wxTreeItemId wxTreebook::DoInternalGetPage(size_t pagePos) const |
| 457 | { |
| 458 | if ( pagePos >= m_treeIds.GetCount() ) |
| 459 | { |
| 460 | // invalid position but ok here, in this internal function, don't assert |
| 461 | // (the caller will do it) |
| 462 | return wxTreeItemId(); |
| 463 | } |
| 464 | |
| 465 | return m_treeIds[pagePos]; |
| 466 | } |
| 467 | |
| 468 | int wxTreebook::DoInternalFindPageById(wxTreeItemId pageId) const |
| 469 | { |
| 470 | const size_t count = m_treeIds.GetCount(); |
| 471 | for ( size_t i = 0; i < count; ++i ) |
| 472 | { |
| 473 | if ( m_treeIds[i] == pageId ) |
| 474 | return i; |
| 475 | } |
| 476 | |
| 477 | return wxNOT_FOUND; |
| 478 | } |
| 479 | |
| 480 | bool wxTreebook::IsNodeExpanded(size_t pagePos) const |
| 481 | { |
| 482 | wxTreeItemId pageId = DoInternalGetPage(pagePos); |
| 483 | |
| 484 | wxCHECK_MSG( pageId.IsOk(), false, wxT("invalid tree item") ); |
| 485 | |
| 486 | return GetTreeCtrl()->IsExpanded(pageId); |
| 487 | } |
| 488 | |
| 489 | bool wxTreebook::ExpandNode(size_t pagePos, bool expand) |
| 490 | { |
| 491 | wxTreeItemId pageId = DoInternalGetPage(pagePos); |
| 492 | |
| 493 | wxCHECK_MSG( pageId.IsOk(), false, wxT("invalid tree item") ); |
| 494 | |
| 495 | if ( expand ) |
| 496 | { |
| 497 | GetTreeCtrl()->Expand( pageId ); |
| 498 | } |
| 499 | else // collapse |
| 500 | { |
| 501 | GetTreeCtrl()->Collapse( pageId ); |
| 502 | |
| 503 | // rely on the events generated by wxTreeCtrl to update selection |
| 504 | } |
| 505 | |
| 506 | return true; |
| 507 | } |
| 508 | |
| 509 | int wxTreebook::GetPageParent(size_t pagePos) const |
| 510 | { |
| 511 | wxTreeItemId nodeId = DoInternalGetPage( pagePos ); |
| 512 | wxCHECK_MSG( nodeId.IsOk(), wxNOT_FOUND, wxT("Invalid page index spacified!") ); |
| 513 | |
| 514 | const wxTreeItemId parent = GetTreeCtrl()->GetItemParent( nodeId ); |
| 515 | |
| 516 | return parent.IsOk() ? DoInternalFindPageById(parent) : wxNOT_FOUND; |
| 517 | } |
| 518 | |
| 519 | bool wxTreebook::SetPageText(size_t n, const wxString& strText) |
| 520 | { |
| 521 | wxTreeItemId pageId = DoInternalGetPage(n); |
| 522 | |
| 523 | wxCHECK_MSG( pageId.IsOk(), false, wxT("invalid tree item") ); |
| 524 | |
| 525 | GetTreeCtrl()->SetItemText(pageId, strText); |
| 526 | |
| 527 | return true; |
| 528 | } |
| 529 | |
| 530 | wxString wxTreebook::GetPageText(size_t n) const |
| 531 | { |
| 532 | wxTreeItemId pageId = DoInternalGetPage(n); |
| 533 | |
| 534 | wxCHECK_MSG( pageId.IsOk(), wxString(), wxT("invalid tree item") ); |
| 535 | |
| 536 | return GetTreeCtrl()->GetItemText(pageId); |
| 537 | } |
| 538 | |
| 539 | int wxTreebook::GetPageImage(size_t n) const |
| 540 | { |
| 541 | wxTreeItemId pageId = DoInternalGetPage(n); |
| 542 | |
| 543 | wxCHECK_MSG( pageId.IsOk(), wxNOT_FOUND, wxT("invalid tree item") ); |
| 544 | |
| 545 | return GetTreeCtrl()->GetItemImage(pageId); |
| 546 | } |
| 547 | |
| 548 | bool wxTreebook::SetPageImage(size_t n, int imageId) |
| 549 | { |
| 550 | wxTreeItemId pageId = DoInternalGetPage(n); |
| 551 | |
| 552 | wxCHECK_MSG( pageId.IsOk(), false, wxT("invalid tree item") ); |
| 553 | |
| 554 | GetTreeCtrl()->SetItemImage(pageId, imageId); |
| 555 | |
| 556 | return true; |
| 557 | } |
| 558 | |
| 559 | int wxTreebook::DoSetSelection(size_t pagePos, int flags) |
| 560 | { |
| 561 | wxCHECK_MSG( IS_VALID_PAGE(pagePos), wxNOT_FOUND, |
| 562 | wxT("invalid page index in wxListbook::DoSetSelection()") ); |
| 563 | wxASSERT_MSG( GetPageCount() == DoInternalGetPageCount(), |
| 564 | wxT("wxTreebook logic error: m_treeIds and m_pages not in sync!")); |
| 565 | |
| 566 | wxBookCtrlEvent event(wxEVT_COMMAND_TREEBOOK_PAGE_CHANGING, m_windowId); |
| 567 | const int oldSel = m_selection; |
| 568 | wxTreeCtrl *tree = GetTreeCtrl(); |
| 569 | bool allowed = false; |
| 570 | |
| 571 | if (flags & SetSelection_SendEvent) |
| 572 | { |
| 573 | event.SetEventObject(this); |
| 574 | event.SetSelection(pagePos); |
| 575 | event.SetOldSelection(m_selection); |
| 576 | |
| 577 | // don't send the event if the old and new pages are the same; do send it |
| 578 | // otherwise and be prepared for it to be vetoed |
| 579 | allowed = (int)pagePos == m_selection || |
| 580 | !GetEventHandler()->ProcessEvent(event) || |
| 581 | event.IsAllowed(); |
| 582 | } |
| 583 | |
| 584 | if ( !(flags & SetSelection_SendEvent) || allowed ) |
| 585 | { |
| 586 | // hide the previously shown page |
| 587 | wxTreebookPage * const oldPage = DoGetCurrentPage(); |
| 588 | if ( oldPage ) |
| 589 | oldPage->Hide(); |
| 590 | |
| 591 | // then show the new one |
| 592 | m_selection = pagePos; |
| 593 | wxTreebookPage *page = wxBookCtrlBase::GetPage(m_selection); |
| 594 | if ( !page ) |
| 595 | { |
| 596 | // find the next page suitable to be shown: the first (grand)child |
| 597 | // of this one with a non-NULL associated page |
| 598 | wxTreeItemId childId = m_treeIds[pagePos]; |
| 599 | int actualPagePos = pagePos; |
| 600 | while ( !page && childId.IsOk() ) |
| 601 | { |
| 602 | wxTreeItemIdValue cookie; |
| 603 | childId = tree->GetFirstChild( childId, cookie ); |
| 604 | if ( childId.IsOk() ) |
| 605 | { |
| 606 | page = wxBookCtrlBase::GetPage(++actualPagePos); |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | m_actualSelection = page ? actualPagePos : m_selection; |
| 611 | } |
| 612 | |
| 613 | if ( page ) |
| 614 | page->Show(); |
| 615 | |
| 616 | tree->SelectItem(DoInternalGetPage(pagePos)); |
| 617 | |
| 618 | if (flags & SetSelection_SendEvent) |
| 619 | { |
| 620 | // notify about the (now completed) page change |
| 621 | event.SetEventType(wxEVT_COMMAND_TREEBOOK_PAGE_CHANGED); |
| 622 | (void)GetEventHandler()->ProcessEvent(event); |
| 623 | } |
| 624 | } |
| 625 | else if ( (flags & SetSelection_SendEvent) && !allowed) // page change vetoed |
| 626 | { |
| 627 | // tree selection might have already had changed |
| 628 | if ( oldSel != wxNOT_FOUND ) |
| 629 | tree->SelectItem(DoInternalGetPage(oldSel)); |
| 630 | } |
| 631 | |
| 632 | return oldSel; |
| 633 | } |
| 634 | |
| 635 | wxTreebookPage *wxTreebook::DoGetCurrentPage() const |
| 636 | { |
| 637 | if ( m_selection == wxNOT_FOUND ) |
| 638 | return NULL; |
| 639 | |
| 640 | wxTreebookPage *page = wxBookCtrlBase::GetPage(m_selection); |
| 641 | if ( !page && m_actualSelection != wxNOT_FOUND ) |
| 642 | { |
| 643 | page = wxBookCtrlBase::GetPage(m_actualSelection); |
| 644 | } |
| 645 | |
| 646 | return page; |
| 647 | } |
| 648 | |
| 649 | void wxTreebook::SetImageList(wxImageList *imageList) |
| 650 | { |
| 651 | wxBookCtrlBase::SetImageList(imageList); |
| 652 | GetTreeCtrl()->SetImageList(imageList); |
| 653 | } |
| 654 | |
| 655 | void wxTreebook::AssignImageList(wxImageList *imageList) |
| 656 | { |
| 657 | wxBookCtrlBase::AssignImageList(imageList); |
| 658 | GetTreeCtrl()->SetImageList(imageList); |
| 659 | } |
| 660 | |
| 661 | // ---------------------------------------------------------------------------- |
| 662 | // event handlers |
| 663 | // ---------------------------------------------------------------------------- |
| 664 | |
| 665 | void wxTreebook::OnTreeSelectionChange(wxTreeEvent& event) |
| 666 | { |
| 667 | if ( event.GetEventObject() != m_bookctrl ) |
| 668 | { |
| 669 | event.Skip(); |
| 670 | return; |
| 671 | } |
| 672 | |
| 673 | wxTreeItemId newId = event.GetItem(); |
| 674 | |
| 675 | if ( (m_selection == wxNOT_FOUND && |
| 676 | (!newId.IsOk() || newId == GetTreeCtrl()->GetRootItem())) || |
| 677 | (m_selection != wxNOT_FOUND && newId == m_treeIds[m_selection]) ) |
| 678 | { |
| 679 | // this event can only come when we modify the tree selection ourselves |
| 680 | // so we should simply ignore it |
| 681 | return; |
| 682 | } |
| 683 | |
| 684 | int newPos = DoInternalFindPageById(newId); |
| 685 | |
| 686 | if ( newPos != wxNOT_FOUND ) |
| 687 | SetSelection( newPos ); |
| 688 | } |
| 689 | |
| 690 | void wxTreebook::OnTreeNodeExpandedCollapsed(wxTreeEvent & event) |
| 691 | { |
| 692 | if ( event.GetEventObject() != m_bookctrl ) |
| 693 | { |
| 694 | event.Skip(); |
| 695 | return; |
| 696 | } |
| 697 | |
| 698 | wxTreeItemId nodeId = event.GetItem(); |
| 699 | if ( !nodeId.IsOk() || nodeId == GetTreeCtrl()->GetRootItem() ) |
| 700 | return; |
| 701 | int pagePos = DoInternalFindPageById(nodeId); |
| 702 | wxCHECK_RET( pagePos != wxNOT_FOUND, wxT("Internal problem in wxTreebook!..") ); |
| 703 | |
| 704 | wxBookCtrlEvent ev(GetTreeCtrl()->IsExpanded(nodeId) |
| 705 | ? wxEVT_COMMAND_TREEBOOK_NODE_EXPANDED |
| 706 | : wxEVT_COMMAND_TREEBOOK_NODE_COLLAPSED, |
| 707 | m_windowId); |
| 708 | |
| 709 | ev.SetSelection(pagePos); |
| 710 | ev.SetOldSelection(pagePos); |
| 711 | ev.SetEventObject(this); |
| 712 | |
| 713 | GetEventHandler()->ProcessEvent(ev); |
| 714 | } |
| 715 | |
| 716 | // ---------------------------------------------------------------------------- |
| 717 | // wxTreebook geometry management |
| 718 | // ---------------------------------------------------------------------------- |
| 719 | |
| 720 | int wxTreebook::HitTest(wxPoint const & pt, long * flags) const |
| 721 | { |
| 722 | int pagePos = wxNOT_FOUND; |
| 723 | |
| 724 | if ( flags ) |
| 725 | *flags = wxBK_HITTEST_NOWHERE; |
| 726 | |
| 727 | // convert from wxTreebook coorindates to wxTreeCtrl ones |
| 728 | const wxTreeCtrl * const tree = GetTreeCtrl(); |
| 729 | const wxPoint treePt = tree->ScreenToClient(ClientToScreen(pt)); |
| 730 | |
| 731 | // is it over the tree? |
| 732 | if ( wxRect(tree->GetSize()).Contains(treePt) ) |
| 733 | { |
| 734 | int flagsTree; |
| 735 | wxTreeItemId id = tree->HitTest(treePt, flagsTree); |
| 736 | |
| 737 | if ( id.IsOk() && (flagsTree & wxTREE_HITTEST_ONITEM) ) |
| 738 | { |
| 739 | pagePos = DoInternalFindPageById(id); |
| 740 | } |
| 741 | |
| 742 | if ( flags ) |
| 743 | { |
| 744 | if ( pagePos != wxNOT_FOUND ) |
| 745 | *flags = 0; |
| 746 | |
| 747 | if ( flagsTree & (wxTREE_HITTEST_ONITEMBUTTON | |
| 748 | wxTREE_HITTEST_ONITEMICON | |
| 749 | wxTREE_HITTEST_ONITEMSTATEICON) ) |
| 750 | *flags |= wxBK_HITTEST_ONICON; |
| 751 | |
| 752 | if ( flagsTree & wxTREE_HITTEST_ONITEMLABEL ) |
| 753 | *flags |= wxBK_HITTEST_ONLABEL; |
| 754 | } |
| 755 | } |
| 756 | else // not over the tree |
| 757 | { |
| 758 | if ( flags && GetPageRect().Contains( pt ) ) |
| 759 | *flags |= wxBK_HITTEST_ONPAGE; |
| 760 | } |
| 761 | |
| 762 | return pagePos; |
| 763 | } |
| 764 | |
| 765 | #endif // wxUSE_TREEBOOK |