+class ItemToRowJob : public DoJob
+{
+public:
+ ItemToRowJob(const wxDataViewItem& item_, wxVector<wxDataViewItem>::reverse_iterator iter)
+ : m_iter(iter),
+ item(item_)
+ {
+ ret = -1;
+ }
+
+ // Maybe binary search will help to speed up this process
+ virtual int operator() ( wxDataViewTreeNode * node)
+ {
+ ret ++;
+ if( node->GetItem() == item )
+ {
+ return DoJob::DONE;
+ }
+
+ if( node->GetItem() == *m_iter )
+ {
+ m_iter++;
+ return DoJob::CONTINUE;
+ }
+ else
+ {
+ ret += node->GetSubTreeCount();
+ return DoJob::SKIP_SUBTREE;
+ }
+
+ }
+
+ // the row number is begin from zero
+ int GetResult() const
+ { return ret -1; }
+
+private:
+ wxVector<wxDataViewItem>::reverse_iterator m_iter;
+ wxDataViewItem item;
+ int ret;
+
+};
+
+int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
+{
+ const wxDataViewModel * model = GetModel();
+ if( model == NULL )
+ return -1;
+
+ if (IsVirtualList())
+ {
+ return wxPtrToUInt( item.GetID() ) -1;
+ }
+ else
+ {
+ if( !item.IsOk() )
+ return -1;
+
+ // Compose the parent-chain of the item we are looking for
+ wxVector<wxDataViewItem> parentChain;
+ wxDataViewItem it( item );
+ while( it.IsOk() )
+ {
+ parentChain.push_back(it);
+ it = model->GetParent(it);
+ }
+
+ // add an 'invalid' item to represent our 'invisible' root node
+ parentChain.push_back(wxDataViewItem());
+
+ // the parent chain was created by adding the deepest parent first.
+ // so if we want to start at the root node, we have to iterate backwards through the vector
+ ItemToRowJob job( item, parentChain.rbegin() );
+ Walker( m_root, job );
+ return job.GetResult();
+ }
+}
+
+static void BuildTreeHelper( const wxDataViewModel * model, const wxDataViewItem & item,
+ wxDataViewTreeNode * node)
+{
+ if( !model->IsContainer( item ) )
+ return;
+
+ wxDataViewItemArray children;
+ unsigned int num = model->GetChildren( item, children);
+
+ for ( unsigned int index = 0; index < num; index++ )
+ {
+ wxDataViewTreeNode *n = new wxDataViewTreeNode(node, children[index]);
+
+ if( model->IsContainer(children[index]) )
+ n->SetHasChildren( true );
+
+ node->InsertChild(n, index);
+ }
+
+ wxASSERT( node->IsOpen() );
+ node->ChangeSubTreeCount(+num);
+}
+
+void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
+{
+ DestroyTree();
+
+ if (GetModel()->IsVirtualListModel())
+ {
+ m_count = -1;
+ return;
+ }
+
+ m_root = wxDataViewTreeNode::CreateRootNode();
+
+ // First we define a invalid item to fetch the top-level elements
+ wxDataViewItem item;
+ SortPrepare();
+ BuildTreeHelper( model, item, m_root);
+ m_count = -1;
+}
+
+void wxDataViewMainWindow::DestroyTree()
+{
+ if (!IsVirtualList())
+ {
+ wxDELETE(m_root);
+ m_count = 0;
+ }
+}
+
+wxDataViewColumn*
+wxDataViewMainWindow::FindColumnForEditing(const wxDataViewItem& item, wxDataViewCellMode mode)
+{
+ // Edit the current column editable in 'mode'. If no column is focused
+ // (typically because the user has full row selected), try to find the
+ // first editable column (this would typically be a checkbox for
+ // wxDATAVIEW_CELL_ACTIVATABLE and we don't want to force the user to set
+ // focus on the checkbox column; or on the only editable text column).
+
+ wxDataViewColumn *candidate = m_currentCol;
+
+ if ( candidate &&
+ !IsCellEditableInMode(item, candidate, mode) &&
+ !m_currentColSetByKeyboard )
+ {
+ // If current column was set by mouse to something not editable (in
+ // 'mode') and the user pressed Space/F2 to edit it, treat the
+ // situation as if there was whole-row focus, because that's what is
+ // visually indicated and the mouse click could very well be targeted
+ // on the row rather than on an individual cell.
+ //
+ // But if it was done by keyboard, respect that even if the column
+ // isn't editable, because focus is visually on that column and editing
+ // something else would be surprising.
+ candidate = NULL;
+ }
+
+ if ( !candidate )
+ {
+ const unsigned cols = GetOwner()->GetColumnCount();
+ for ( unsigned i = 0; i < cols; i++ )
+ {
+ wxDataViewColumn *c = GetOwner()->GetColumnAt(i);
+ if ( c->IsHidden() )
+ continue;
+
+ if ( IsCellEditableInMode(item, c, mode) )
+ {
+ candidate = c;
+ break;
+ }
+ }
+ }
+
+ // If on container item without columns, only the expander column
+ // may be directly editable:
+ if ( candidate &&
+ GetOwner()->GetExpanderColumn() != candidate &&
+ GetModel()->IsContainer(item) &&
+ !GetModel()->HasContainerColumns(item) )
+ {
+ candidate = GetOwner()->GetExpanderColumn();
+ }
+
+ if ( !candidate )
+ return NULL;
+
+ if ( !IsCellEditableInMode(item, candidate, mode) )
+ return NULL;
+
+ return candidate;
+}
+
+bool wxDataViewMainWindow::IsCellEditableInMode(const wxDataViewItem& item,
+ const wxDataViewColumn *col,
+ wxDataViewCellMode mode) const
+{
+ if ( col->GetRenderer()->GetMode() != mode )
+ return false;
+
+ if ( !GetModel()->IsEnabled(item, col->GetModelColumn()) )
+ return false;
+
+ return true;
+}
+
+void wxDataViewMainWindow::OnCharHook(wxKeyEvent& event)
+{
+ if ( m_editorCtrl )
+ {
+ // Handle any keys special for the in-place editor and return without
+ // calling Skip() below.
+ switch ( event.GetKeyCode() )
+ {
+ case WXK_ESCAPE:
+ m_editorRenderer->CancelEditing();
+ return;
+
+ case WXK_RETURN:
+ m_editorRenderer->FinishEditing();
+ return;
+ }
+ }
+
+ event.Skip();
+}
+
+void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
+{
+ wxWindow * const parent = GetParent();
+
+ // propagate the char event upwards
+ wxKeyEvent eventForParent(event);
+ eventForParent.SetEventObject(parent);
+ if ( parent->ProcessWindowEvent(eventForParent) )
+ return;
+
+ if ( parent->HandleAsNavigationKey(event) )
+ return;
+
+ // no item -> nothing to do
+ if (!HasCurrentRow())
+ {
+ event.Skip();
+ return;
+ }
+
+ // don't use m_linesPerPage directly as it might not be computed yet
+ const int pageSize = GetCountPerPage();
+ wxCHECK_RET( pageSize, wxT("should have non zero page size") );
+
+ switch ( event.GetKeyCode() )
+ {
+ case WXK_RETURN:
+ if ( event.HasModifiers() )
+ {
+ event.Skip();
+ break;
+ }
+ else
+ {
+ // Enter activates the item, i.e. sends wxEVT_DATAVIEW_ITEM_ACTIVATED to
+ // it. Only if that event is not handled do we activate column renderer (which
+ // is normally done by Space) or even inline editing.
+
+ const wxDataViewItem item = GetItemByRow(m_currentRow);
+
+ wxDataViewEvent le(wxEVT_DATAVIEW_ITEM_ACTIVATED,
+ parent->GetId());
+ le.SetItem(item);
+ le.SetEventObject(parent);
+ le.SetModel(GetModel());
+
+ if ( parent->ProcessWindowEvent(le) )
+ break;
+ // else: fall through to WXK_SPACE handling
+ }
+
+ case WXK_SPACE:
+ if ( event.HasModifiers() )
+ {
+ event.Skip();
+ break;
+ }
+ else
+ {
+ // Space toggles activatable items or -- if not activatable --
+ // starts inline editing (this is normally done using F2 on
+ // Windows, but Space is common everywhere else, so use it too
+ // for greater cross-platform compatibility).
+
+ const wxDataViewItem item = GetItemByRow(m_currentRow);
+
+ // Activate the current activatable column. If not column is focused (typically
+ // because the user has full row selected), try to find the first activatable
+ // column (this would typically be a checkbox and we don't want to force the user
+ // to set focus on the checkbox column).
+ wxDataViewColumn *activatableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_ACTIVATABLE);
+
+ if ( activatableCol )
+ {
+ const unsigned colIdx = activatableCol->GetModelColumn();
+ const wxRect cell_rect = GetOwner()->GetItemRect(item, activatableCol);
+
+ wxDataViewRenderer *cell = activatableCol->GetRenderer();
+ cell->PrepareForItem(GetModel(), item, colIdx);
+ cell->WXActivateCell(cell_rect, GetModel(), item, colIdx, NULL);
+
+ break;
+ }
+ // else: fall through to WXK_F2 handling
+ }
+
+ case WXK_F2:
+ if ( event.HasModifiers() )
+ {
+ event.Skip();
+ break;
+ }
+ else
+ {
+ if( !m_selection.empty() )
+ {
+ // Mimic Windows 7 behavior: edit the item that has focus
+ // if it is selected and the first selected item if focus
+ // is out of selection.
+ int sel;
+ if ( m_selection.Index(m_currentRow) != wxNOT_FOUND )
+ sel = m_currentRow;
+ else
+ sel = m_selection[0];
+
+
+ const wxDataViewItem item = GetItemByRow(sel);
+
+ // Edit the current column. If no column is focused
+ // (typically because the user has full row selected), try
+ // to find the first editable column.
+ wxDataViewColumn *editableCol = FindColumnForEditing(item, wxDATAVIEW_CELL_EDITABLE);
+
+ if ( editableCol )
+ GetOwner()->EditItem(item, editableCol);
+ }
+ }
+ break;
+
+ case WXK_UP:
+ OnVerticalNavigation( -1, event );
+ break;
+
+ case WXK_DOWN:
+ OnVerticalNavigation( +1, event );
+ break;
+ // Add the process for tree expanding/collapsing
+ case WXK_LEFT:
+ OnLeftKey();
+ break;
+
+ case WXK_RIGHT:
+ OnRightKey();
+ break;
+
+ case WXK_END:
+ OnVerticalNavigation( +(int)GetRowCount(), event );
+ break;
+
+ case WXK_HOME:
+ OnVerticalNavigation( -(int)GetRowCount(), event );
+ break;
+
+ case WXK_PAGEUP:
+ OnVerticalNavigation( -(pageSize - 1), event );
+ break;
+
+ case WXK_PAGEDOWN:
+ OnVerticalNavigation( +(pageSize - 1), event );
+ break;
+
+ default:
+ event.Skip();
+ }
+}
+
+void wxDataViewMainWindow::OnVerticalNavigation(int delta, const wxKeyEvent& event)
projects / wxWidgets.git / blobdiff