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///////////////////////////////////////////////////////////////////////////////
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// Name: src/generic/treelist.cpp
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// Purpose: Generic wxTreeListCtrl implementation.
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// Author: Vadim Zeitlin
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// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// ============================================================================
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_TREELISTCTRL
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#include "wx/treelist.h"
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#include "wx/dataview.h"
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#include "wx/renderer.h"
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#include "wx/scopedarray.h"
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#include "wx/scopedptr.h"
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// ----------------------------------------------------------------------------
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// ----------------------------------------------------------------------------
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const char wxTreeListCtrlNameStr[] = "wxTreeListCtrl";
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const wxTreeListItem wxTLI_FIRST(reinterpret_cast<wxTreeListModelNode*>(-1));
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const wxTreeListItem wxTLI_LAST(reinterpret_cast<wxTreeListModelNode*>(-2));
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// ----------------------------------------------------------------------------
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// wxTreeListModelNode: a node in the internal tree representation.
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// ----------------------------------------------------------------------------
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class wxTreeListModelNode
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wxTreeListModelNode(wxTreeListModelNode* parent,
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const wxString& text = wxString(),
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int imageClosed = wxWithImages::NO_IMAGE,
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int imageOpened = wxWithImages::NO_IMAGE,
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wxClientData* data = NULL)
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m_imageClosed = imageClosed;
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m_imageOpened = imageOpened;
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m_checkedState = wxCHK_UNCHECKED;
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m_columnsTexts = NULL;
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// Destroying the node also (recursively) destroys its children.
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~wxTreeListModelNode()
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for ( wxTreeListModelNode* node = m_child; node; )
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wxTreeListModelNode* child = node;
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delete [] m_columnsTexts;
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// Public fields for the first column text and other simple attributes:
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// there is no need to have accessors/mutators for those as there is no
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// encapsulation anyhow, all of those are exposed in our public API.
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wxCheckBoxState m_checkedState;
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// Accessors for the fields that are not directly exposed.
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// Client data is owned by us so delete the old value when setting the new
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wxClientData* GetClientData() const { return m_data; }
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void SetClientData(wxClientData* data) { delete m_data; m_data = data; }
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// Setting or getting the non-first column text. Getting is simple but you
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// need to call HasColumnsTexts() first as the column data is only
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// allocated on demand. And when setting the text we require to be given
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// the total number of columns as we allocate the entire array at once,
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// this is more efficient than using dynamically-expandable wxVector that
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// we know won't be needed as the number of columns is usually fixed. But
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// if it does change, our OnInsertColumn() must be called.
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// Notice the presence of -1 everywhere in these methods: this is because
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// the text for the first column is always stored in m_text and so we don't
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// store it in m_columnsTexts.
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bool HasColumnsTexts() const { return m_columnsTexts != NULL; }
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const wxString& GetColumnText(unsigned col) const
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return m_columnsTexts[col - 1];
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void SetColumnText(const wxString& text, unsigned col, unsigned numColumns)
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if ( !m_columnsTexts )
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m_columnsTexts = new wxString[numColumns - 1];
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m_columnsTexts[col - 1] = text;
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void OnInsertColumn(unsigned col, unsigned numColumns)
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wxASSERT_MSG( col, "Shouldn't be called for the first column" );
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// Nothing to do if we don't have any text.
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if ( !m_columnsTexts )
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wxScopedArray<wxString> oldTexts(m_columnsTexts);
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m_columnsTexts = new wxString[numColumns - 1];
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// In the loop below n is the index in the new column texts array and m
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// is the index in the old one.
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for ( unsigned n = 1, m = 1; n < numColumns - 1; n++, m++ )
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// Leave the new array text initially empty and just adjust the
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// index (to compensate for "m++" done by the loop anyhow).
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else // Not the newly inserted column.
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// Copy the old text value.
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m_columnsTexts[n - 1] = oldTexts[m - 1];
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void OnDeleteColumn(unsigned col, unsigned numColumns)
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wxASSERT_MSG( col, "Shouldn't be called for the first column" );
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if ( !m_columnsTexts )
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wxScopedArray<wxString> oldTexts(m_columnsTexts);
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m_columnsTexts = new wxString[numColumns - 2];
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for ( unsigned n = 1, m = 1; n < numColumns - 1; n++, m++ )
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else // Not the deleted column.
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m_columnsTexts[n - 1] = oldTexts[m - 1];
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void OnClearColumns()
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if ( m_columnsTexts )
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delete [] m_columnsTexts;
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m_columnsTexts = NULL;
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// Functions for modifying the tree.
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// Insert the given item as the first child of this one. The parent pointer
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// must have been already set correctly at creation and we take ownership
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// of the pointer and will delete it later.
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void InsertChild(wxTreeListModelNode* child)
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wxASSERT( child->m_parent == this );
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// Our previous first child becomes the next sibling of the new child.
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child->m_next = m_child;
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// Insert the given item as our next sibling. As above, the item must have
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// the correct parent pointer and we take ownership of it.
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void InsertNext(wxTreeListModelNode* next)
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wxASSERT( next->m_parent == m_parent );
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next->m_next = m_next;
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// Remove the first child of this item from the tree and delete it.
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wxTreeListModelNode* const oldChild = m_child;
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m_child = m_child->m_next;
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// Remove the next sibling of this item from the tree and deletes it.
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wxTreeListModelNode* const oldNext = m_next;
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m_next = m_next->m_next;
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// Functions for tree traversal. All of them can return NULL.
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// Only returns NULL when called on the root item.
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wxTreeListModelNode* GetParent() const { return m_parent; }
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// Returns the first child of this item.
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wxTreeListModelNode* GetChild() const { return m_child; }
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// Returns the next sibling of this item.
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wxTreeListModelNode* GetNext() const { return m_next; }
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// Unlike the previous two functions, this one is not a simple accessor
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// (hence it's not called "GetSomething") but computes the next node after
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// this one in tree order.
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wxTreeListModelNode* NextInTree() const
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// Recurse upwards until we find the next sibling.
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for ( wxTreeListModelNode* node = m_parent; node; node = node->m_parent )
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// The (never changing after creation) parent of this node and the possibly
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// NULL pointers to its first child and next sibling.
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wxTreeListModelNode* const m_parent;
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wxTreeListModelNode* m_child;
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wxTreeListModelNode* m_next;
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// Client data pointer owned by the control. May be NULL.
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wxClientData* m_data;
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// Array of column values for all the columns except the first one. May be
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// NULL if no values had been set for them.
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wxString* m_columnsTexts;
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// ----------------------------------------------------------------------------
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// wxTreeListModel: wxDataViewModel implementation used by wxTreeListCtrl.
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// ----------------------------------------------------------------------------
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class wxTreeListModel : public wxDataViewModel
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typedef wxTreeListModelNode Node;
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// Unlike a general wxDataViewModel, this model can only be used with a
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// single control at once. The main reason for this is that we need to
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// support different icons for opened and closed items and the item state
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// is associated with the control, not the model, so our GetValue() is also
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// bound to it (otherwise, what would it return for an item expanded in one
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// associated control and collapsed in another one?).
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wxTreeListModel(wxTreeListCtrl* treelist);
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virtual ~wxTreeListModel();
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// Helpers for converting between wxDataViewItem and wxTreeListItem. These
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// methods simply cast the pointer to/from wxDataViewItem except for the
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// root node that we handle specially unless explicitly disabled.
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// The advantage of using them is that they're greppable and stand out
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// better, hopefully making the code more clear.
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Node* FromNonRootDVI(wxDataViewItem dvi) const
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return static_cast<Node*>(dvi.GetID());
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Node* FromDVI(wxDataViewItem dvi) const
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return FromNonRootDVI(dvi);
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wxDataViewItem ToNonRootDVI(Node* node) const
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return wxDataViewItem(node);
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wxDataViewItem ToDVI(Node* node) const
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// Our root item must be represented as NULL at wxDVC level to map to
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// its own invisible root.
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if ( !node->GetParent() )
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return wxDataViewItem();
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return ToNonRootDVI(node);
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// Methods called by wxTreeListCtrl.
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void InsertColumn(unsigned col);
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void DeleteColumn(unsigned col);
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Node* InsertItem(Node* parent,
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const wxString& text,
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void DeleteItem(Node* item);
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void DeleteAllItems();
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Node* GetRootItem() const { return m_root; }
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const wxString& GetItemText(Node* item, unsigned col) const;
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void SetItemText(Node* item, unsigned col, const wxString& text);
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void SetItemImage(Node* item, int closed, int opened);
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wxClientData* GetItemData(Node* item) const;
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void SetItemData(Node* item, wxClientData* data);
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void CheckItem(Node* item, wxCheckBoxState checkedState);
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void ToggleItem(wxDataViewItem item);
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// Implement the base class pure virtual methods.
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virtual unsigned GetColumnCount() const;
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virtual wxString GetColumnType(unsigned col) const;
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virtual void GetValue(wxVariant& variant,
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const wxDataViewItem& item,
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virtual bool SetValue(const wxVariant& variant,
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const wxDataViewItem& item,
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virtual wxDataViewItem GetParent(const wxDataViewItem& item) const;
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virtual bool IsContainer(const wxDataViewItem& item) const;
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virtual bool HasContainerColumns(const wxDataViewItem& item) const;
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virtual unsigned GetChildren(const wxDataViewItem& item,
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wxDataViewItemArray& children) const;
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virtual bool IsListModel() const { return m_isFlat; }
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virtual int Compare(const wxDataViewItem& item1,
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const wxDataViewItem& item2,
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bool ascending) const;
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// The control we're associated with.
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wxTreeListCtrl* const m_treelist;
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// The unique invisible root element.
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// Number of columns we maintain.
393
unsigned m_numColumns;
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// Set to false as soon as we have more than one level, i.e. as soon as any
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// items with non-root item as parent are added (and currently never reset
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// ============================================================================
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// wxDataViewCheckIconText[Renderer]: special renderer for our first column.
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// ============================================================================
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// Currently this class is private but it could be extracted and made part of
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// public API later as could be used directly with wxDataViewCtrl as well.
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const char* CHECK_ICON_TEXT_TYPE = "wxDataViewCheckIconText";
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// The value used by wxDataViewCheckIconTextRenderer
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class wxDataViewCheckIconText : public wxDataViewIconText
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wxDataViewCheckIconText(const wxString& text = wxString(),
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const wxIcon& icon = wxNullIcon,
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wxCheckBoxState checkedState = wxCHK_UNDETERMINED)
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: wxDataViewIconText(text, icon),
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m_checkedState(checkedState)
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wxDataViewCheckIconText(const wxDataViewCheckIconText& other)
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: wxDataViewIconText(other),
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m_checkedState(other.m_checkedState)
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bool IsSameAs(const wxDataViewCheckIconText& other) const
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return wxDataViewIconText::IsSameAs(other) &&
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m_checkedState == other.m_checkedState;
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// There is no encapsulation anyhow, so just expose this field directly.
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wxCheckBoxState m_checkedState;
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wxDECLARE_DYNAMIC_CLASS(wxDataViewCheckIconText);
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wxIMPLEMENT_DYNAMIC_CLASS(wxDataViewCheckIconText, wxDataViewIconText);
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DECLARE_VARIANT_OBJECT(wxDataViewCheckIconText)
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IMPLEMENT_VARIANT_OBJECT(wxDataViewCheckIconText)
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class wxDataViewCheckIconTextRenderer : public wxDataViewCustomRenderer
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wxDataViewCheckIconTextRenderer()
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: wxDataViewCustomRenderer(CHECK_ICON_TEXT_TYPE,
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wxDATAVIEW_CELL_ACTIVATABLE)
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virtual bool SetValue(const wxVariant& value)
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virtual bool GetValue(wxVariant& WXUNUSED(value)) const
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wxSize GetSize() const
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wxSize size = GetCheckSize();
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size.x += MARGIN_CHECK_ICON;
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if ( m_value.GetIcon().IsOk() )
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const wxSize sizeIcon = m_value.GetIcon().GetSize();
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if ( sizeIcon.y > size.y )
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size.x += sizeIcon.x + MARGIN_ICON_TEXT;
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wxString text = m_value.GetText();
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const wxSize sizeText = GetTextExtent(text);
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if ( sizeText.y > size.y )
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size.x += sizeText.x;
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virtual bool Render(wxRect cell, wxDC* dc, int state)
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// Draw the checkbox first.
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switch ( m_value.m_checkedState )
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case wxCHK_UNCHECKED:
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renderFlags |= wxCONTROL_CHECKED;
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case wxCHK_UNDETERMINED:
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renderFlags |= wxCONTROL_UNDETERMINED;
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if ( state & wxDATAVIEW_CELL_PRELIT )
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renderFlags |= wxCONTROL_CURRENT;
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const wxSize sizeCheck = GetCheckSize();
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wxRect rectCheck(cell.GetPosition(), sizeCheck);
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rectCheck = rectCheck.CentreIn(cell, wxVERTICAL);
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wxRendererNative::Get().DrawCheckBox
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GetView(), *dc, rectCheck, renderFlags
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// Then the icon, if any.
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int xoffset = sizeCheck.x + MARGIN_CHECK_ICON;
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const wxIcon& icon = m_value.GetIcon();
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const wxSize sizeIcon = icon.GetSize();
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wxRect rectIcon(cell.GetPosition(), sizeIcon);
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rectIcon.x += xoffset;
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rectIcon = rectIcon.CentreIn(cell, wxVERTICAL);
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dc->DrawIcon(icon, rectIcon.GetPosition());
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xoffset += sizeIcon.x + MARGIN_ICON_TEXT;
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RenderText(m_value.GetText(), xoffset, cell, dc, state);
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// Event handlers toggling the items checkbox if it was clicked.
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virtual bool ActivateCell(const wxRect& WXUNUSED(cell),
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wxDataViewModel *model,
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const wxDataViewItem & item,
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unsigned int WXUNUSED(col),
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const wxMouseEvent *mouseEvent)
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if ( !wxRect(GetCheckSize()).Contains(mouseEvent->GetPosition()) )
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static_cast<wxTreeListModel*>(model)->ToggleItem(item);
568
wxSize GetCheckSize() const
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return wxRendererNative::Get().GetCheckBoxSize(GetView());
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// Just some arbitrary constants defining margins, in pixels.
577
MARGIN_CHECK_ICON = 3,
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wxDataViewCheckIconText m_value;
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} // anonymous namespace
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// ============================================================================
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// wxTreeListModel implementation
588
// ============================================================================
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wxTreeListModel::wxTreeListModel(wxTreeListCtrl* treelist)
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: m_treelist(treelist),
592
m_root(new Node(NULL))
598
wxTreeListModel::~wxTreeListModel()
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void wxTreeListModel::InsertColumn(unsigned col)
607
// There is no need to update anything when inserting the first column.
608
if ( m_numColumns == 1 )
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// Update all the items as they may have texts for the old columns.
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for ( Node* node = m_root->GetChild(); node; node = node->NextInTree() )
614
node->OnInsertColumn(col, m_numColumns);
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void wxTreeListModel::DeleteColumn(unsigned col)
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wxCHECK_RET( col < m_numColumns, "Invalid column index" );
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// Update all the items to remove the text for the non first columns.
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for ( Node* node = m_root->GetChild(); node; node = node->NextInTree() )
627
node->OnDeleteColumn(col, m_numColumns);
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void wxTreeListModel::ClearColumns()
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for ( Node* node = m_root->GetChild(); node; node = node->NextInTree() )
640
node->OnClearColumns();
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wxTreeListModel::InsertItem(Node* parent,
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const wxString& text,
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wxCHECK_MSG( parent, NULL,
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"Must have a valid parent (maybe GetRootItem()?)" );
655
wxCHECK_MSG( previous, NULL,
656
"Must have a valid previous item (maybe wxTLI_FIRST/LAST?)" );
658
if ( m_isFlat && parent != m_root )
660
// Not flat any more, this is a second level child.
665
newItem(new Node(parent, text, imageClosed, imageOpened, data));
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// FIXME-VC6: This compiler refuses to compare "Node* previous" with
668
// wxTLI_XXX without some help.
669
const wxTreeListItem previousItem(previous);
671
// If we have no children at all, then inserting as last child is the same
672
// as inserting as the first one so check for it here too.
673
if ( previousItem == wxTLI_FIRST ||
674
(previousItem == wxTLI_LAST && !parent->GetChild()) )
676
parent->InsertChild(newItem.get());
678
else // Not the first item, find the previous one.
680
if ( previousItem == wxTLI_LAST )
682
previous = parent->GetChild();
684
// Find the last child.
687
Node* const next = previous->GetNext();
694
else // We already have the previous item.
696
// Just check it's under the correct parent.
697
wxCHECK_MSG( previous->GetParent() == parent, NULL,
698
"Previous item is not under the right parent" );
701
previous->InsertNext(newItem.get());
704
ItemAdded(ToDVI(parent), ToDVI(newItem.get()));
706
// The item was successfully inserted in the tree and so will be deleted by
707
// it, we can detach it now.
708
return newItem.release();
711
void wxTreeListModel::DeleteItem(Node* item)
713
wxCHECK_RET( item, "Invalid item" );
715
wxCHECK_RET( item != m_root, "Can't delete the root item" );
717
Node* const parent = item->GetParent();
719
ItemDeleted(ToDVI(parent), ToDVI(item));
721
Node* previous = parent->GetChild();
722
if ( previous == item )
724
parent->DeleteChild();
726
else // Not the first child of its parent.
728
// Find the sibling just before it.
731
Node* const next = previous->GetNext();
735
wxCHECK_RET( next, "Item not a child of its parent?" );
740
previous->DeleteNext();
744
void wxTreeListModel::DeleteAllItems()
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while ( m_root->GetChild() )
748
m_root->DeleteChild();
754
const wxString& wxTreeListModel::GetItemText(Node* item, unsigned col) const
756
// Returning root item text here is bogus, it just happens to be an always
757
// empty string we can return reference to.
758
wxCHECK_MSG( item, m_root->m_text, "Invalid item" );
760
// Notice that asking for the text of a column of an item that doesn't have
761
// any column texts is not an error so we simply return an empty string in
763
return col == 0 ? item->m_text
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: item->HasColumnsTexts() ? item->GetColumnText(col)
768
void wxTreeListModel::SetItemText(Node* item, unsigned col, const wxString& text)
770
wxCHECK_RET( item, "Invalid item" );
775
item->SetColumnText(text, col, m_numColumns);
777
ValueChanged(ToDVI(item), col);
780
void wxTreeListModel::SetItemImage(Node* item, int closed, int opened)
782
wxCHECK_RET( item, "Invalid item" );
784
item->m_imageClosed = closed;
785
item->m_imageOpened = opened;
787
ValueChanged(ToDVI(item), 0);
790
wxClientData* wxTreeListModel::GetItemData(Node* item) const
792
wxCHECK_MSG( item, NULL, "Invalid item" );
794
return item->GetClientData();
797
void wxTreeListModel::SetItemData(Node* item, wxClientData* data)
799
wxCHECK_RET( item, "Invalid item" );
801
item->SetClientData(data);
804
void wxTreeListModel::CheckItem(Node* item, wxCheckBoxState checkedState)
806
wxCHECK_RET( item, "Invalid item" );
808
item->m_checkedState = checkedState;
810
ItemChanged(ToDVI(item));
813
void wxTreeListModel::ToggleItem(wxDataViewItem dvi)
815
Node* const item = FromDVI(dvi);
817
wxCHECK_RET( item, "Invalid item" );
819
const wxCheckBoxState stateOld = item->m_checkedState;
821
// If the 3rd state is user-settable then the cycle is
822
// unchecked->checked->undetermined.
826
item->m_checkedState = m_treelist->HasFlag(wxTL_USER_3STATE)
831
case wxCHK_UNDETERMINED:
832
// Whether 3rd state is user-settable or not, the next state is
834
item->m_checkedState = wxCHK_UNCHECKED;
837
case wxCHK_UNCHECKED:
838
item->m_checkedState = wxCHK_CHECKED;
842
ItemChanged(ToDVI(item));
844
m_treelist->OnItemToggled(item, stateOld);
847
unsigned wxTreeListModel::GetColumnCount() const
852
wxString wxTreeListModel::GetColumnType(unsigned col) const
856
return m_treelist->HasFlag(wxTL_CHECKBOX)
857
? wxS("wxDataViewCheckIconText")
858
: wxS("wxDataViewIconText");
860
else // All the other columns contain just text.
862
return wxS("string");
867
wxTreeListModel::GetValue(wxVariant& variant,
868
const wxDataViewItem& item,
871
Node* const node = FromDVI(item);
875
// Determine the correct image to use depending on the item state.
876
int image = wxWithImages::NO_IMAGE;
877
if ( m_treelist->IsExpanded(node) )
878
image = node->m_imageOpened;
880
if ( image == wxWithImages::NO_IMAGE )
881
image = node->m_imageClosed;
883
wxIcon icon = m_treelist->GetImage(image);
885
if ( m_treelist->HasFlag(wxTL_CHECKBOX) )
886
variant << wxDataViewCheckIconText(node->m_text, icon,
887
node->m_checkedState);
889
variant << wxDataViewIconText(node->m_text, icon);
893
// Notice that we must still assign wxString to wxVariant to ensure
894
// that it at least has the correct type.
896
if ( node->HasColumnsTexts() )
897
text = node->GetColumnText(col);
904
wxTreeListModel::SetValue(const wxVariant& WXUNUSED(variant),
905
const wxDataViewItem& WXUNUSED(item),
906
unsigned WXUNUSED(col))
908
// We are not editable currently.
912
wxDataViewItem wxTreeListModel::GetParent(const wxDataViewItem& item) const
914
Node* const node = FromDVI(item);
916
return ToDVI(node->GetParent());
919
bool wxTreeListModel::IsContainer(const wxDataViewItem& item) const
921
// FIXME: In the generic (and native OS X) versions we implement this
922
// method normally, i.e. only items with children are containers.
923
// But for the native GTK version we must pretend that all items are
924
// containers because otherwise adding children to them later would
925
// fail because wxGTK code calls IsContainer() too early (when
926
// adding the item itself) and we can't know whether we're container
927
// or not by then. Luckily, always returning true doesn't have any
928
// serious drawbacks for us.
934
Node* const node = FromDVI(item);
936
return node->GetChild() != NULL;
941
wxTreeListModel::HasContainerColumns(const wxDataViewItem& WXUNUSED(item)) const
947
wxTreeListModel::GetChildren(const wxDataViewItem& item,
948
wxDataViewItemArray& children) const
950
Node* const node = FromDVI(item);
952
unsigned numChildren = 0;
953
for ( Node* child = node->GetChild(); child; child = child->GetNext() )
955
children.push_back(ToDVI(child));
963
wxTreeListModel::Compare(const wxDataViewItem& item1,
964
const wxDataViewItem& item2,
966
bool ascending) const
968
// Compare using default alphabetical order if no custom comparator.
969
wxTreeListItemComparator* const comp = m_treelist->m_comparator;
971
return wxDataViewModel::Compare(item1, item2, col, ascending);
973
// Forward comparison to the comparator:
974
int result = comp->Compare(m_treelist, col, FromDVI(item1), FromDVI(item2));
976
// And adjust by the sort order if necessary.
983
// ============================================================================
984
// wxTreeListCtrl implementation
985
// ============================================================================
987
BEGIN_EVENT_TABLE(wxTreeListCtrl, wxWindow)
988
EVT_DATAVIEW_SELECTION_CHANGED(wxID_ANY, wxTreeListCtrl::OnSelectionChanged)
989
EVT_DATAVIEW_ITEM_EXPANDING(wxID_ANY, wxTreeListCtrl::OnItemExpanding)
990
EVT_DATAVIEW_ITEM_EXPANDED(wxID_ANY, wxTreeListCtrl::OnItemExpanded)
991
EVT_DATAVIEW_ITEM_ACTIVATED(wxID_ANY, wxTreeListCtrl::OnItemActivated)
992
EVT_DATAVIEW_ITEM_CONTEXT_MENU(wxID_ANY, wxTreeListCtrl::OnItemContextMenu)
993
EVT_DATAVIEW_COLUMN_SORTED(wxID_ANY, wxTreeListCtrl::OnColumnSorted)
995
EVT_SIZE(wxTreeListCtrl::OnSize)
998
// ----------------------------------------------------------------------------
1000
// ----------------------------------------------------------------------------
1002
void wxTreeListCtrl::Init()
1006
m_comparator = NULL;
1009
bool wxTreeListCtrl::Create(wxWindow* parent,
1014
const wxString& name)
1016
if ( style & wxTL_USER_3STATE )
1017
style |= wxTL_3STATE;
1019
if ( style & wxTL_3STATE )
1020
style |= wxTL_CHECKBOX;
1022
// Create the window itself and wxDataViewCtrl used by it.
1023
if ( !wxWindow::Create(parent, id,
1030
m_view = new wxDataViewCtrl;
1031
long styleDataView = HasFlag(wxTL_MULTIPLE) ? wxDV_MULTIPLE
1033
if ( HasFlag(wxTL_NO_HEADER) )
1034
styleDataView |= wxDV_NO_HEADER;
1036
if ( !m_view->Create(this, wxID_ANY,
1037
wxPoint(0, 0), GetClientSize(),
1047
// Set up the model for wxDataViewCtrl.
1048
m_model = new wxTreeListModel(this);
1049
m_view->AssociateModel(m_model);
1054
wxTreeListCtrl::~wxTreeListCtrl()
1060
wxWindowList wxTreeListCtrl::GetCompositeWindowParts() const
1063
parts.push_back(m_view);
1067
// ----------------------------------------------------------------------------
1069
// ----------------------------------------------------------------------------
1072
wxTreeListCtrl::DoInsertColumn(const wxString& title,
1078
wxCHECK_MSG( m_view, wxNOT_FOUND, "Must Create() first" );
1080
const unsigned oldNumColumns = m_view->GetColumnCount();
1082
if ( pos == wxNOT_FOUND )
1083
pos = oldNumColumns;
1085
wxDataViewRenderer* renderer;
1088
// Inserting the first column which is special as it uses a different
1091
// Also, currently it can be done only once.
1092
wxCHECK_MSG( !oldNumColumns, wxNOT_FOUND,
1093
"Inserting column at position 0 currently not supported" );
1095
if ( HasFlag(wxTL_CHECKBOX) )
1097
// Use our custom renderer to show the checkbox.
1098
renderer = new wxDataViewCheckIconTextRenderer;
1100
else // We still need a special renderer to show the icons.
1102
renderer = new wxDataViewIconTextRenderer;
1105
else // Not the first column.
1107
// All the other ones use a simple text renderer.
1108
renderer = new wxDataViewTextRenderer;
1112
column = new wxDataViewColumn(title, renderer, pos, width, align, flags);
1114
m_model->InsertColumn(pos);
1116
m_view->InsertColumn(pos, column);
1121
unsigned wxTreeListCtrl::GetColumnCount() const
1123
return m_view ? m_view->GetColumnCount() : 0u;
1126
bool wxTreeListCtrl::DeleteColumn(unsigned col)
1128
wxCHECK_MSG( col < GetColumnCount(), false, "Invalid column index" );
1130
if ( !m_view->DeleteColumn(m_view->GetColumn(col)) )
1133
m_model->DeleteColumn(col);
1138
void wxTreeListCtrl::ClearColumns()
1140
// Don't assert here, clearing columns of the control before it's created
1141
// can be considered valid (just useless).
1145
m_view->ClearColumns();
1147
m_model->ClearColumns();
1150
void wxTreeListCtrl::SetColumnWidth(unsigned col, int width)
1152
wxCHECK_RET( col < GetColumnCount(), "Invalid column index" );
1154
wxDataViewColumn* const column = m_view->GetColumn(col);
1155
wxCHECK_RET( column, "No such column?" );
1157
column->SetWidth(width);
1160
int wxTreeListCtrl::GetColumnWidth(unsigned col) const
1162
wxCHECK_MSG( col < GetColumnCount(), -1, "Invalid column index" );
1164
wxDataViewColumn* column = m_view->GetColumn(col);
1165
wxCHECK_MSG( column, -1, "No such column?" );
1167
return column->GetWidth();
1170
int wxTreeListCtrl::WidthFor(const wxString& text) const
1172
return GetTextExtent(text).x;
1175
// ----------------------------------------------------------------------------
1177
// ----------------------------------------------------------------------------
1180
wxTreeListCtrl::DoInsertItem(wxTreeListItem parent,
1181
wxTreeListItem previous,
1182
const wxString& text,
1187
wxCHECK_MSG( m_model, wxTreeListItem(), "Must create first" );
1189
return wxTreeListItem(m_model->InsertItem(parent, previous, text,
1190
imageClosed, imageOpened, data));
1193
void wxTreeListCtrl::DeleteItem(wxTreeListItem item)
1195
wxCHECK_RET( m_model, "Must create first" );
1197
m_model->DeleteItem(item);
1200
void wxTreeListCtrl::DeleteAllItems()
1203
m_model->DeleteAllItems();
1206
// ----------------------------------------------------------------------------
1208
// ----------------------------------------------------------------------------
1210
// The simple accessors in this section are implemented directly using
1211
// wxTreeListModelNode methods, without passing by the model. This is just a
1212
// shortcut and avoids us the trouble of defining more trivial methods in
1215
wxTreeListItem wxTreeListCtrl::GetRootItem() const
1217
wxCHECK_MSG( m_model, wxTreeListItem(), "Must create first" );
1219
return m_model->GetRootItem();
1222
wxTreeListItem wxTreeListCtrl::GetItemParent(wxTreeListItem item) const
1224
wxCHECK_MSG( item.IsOk(), wxTreeListItem(), "Invalid item" );
1226
return item->GetParent();
1229
wxTreeListItem wxTreeListCtrl::GetFirstChild(wxTreeListItem item) const
1231
wxCHECK_MSG( item.IsOk(), wxTreeListItem(), "Invalid item" );
1233
return item->GetChild();
1237
wxTreeListCtrl::GetNextSibling(wxTreeListItem item) const
1239
wxCHECK_MSG( item.IsOk(), wxTreeListItem(), "Invalid item" );
1241
return item->GetNext();
1244
wxTreeListItem wxTreeListCtrl::GetNextItem(wxTreeListItem item) const
1246
wxCHECK_MSG( item.IsOk(), wxTreeListItem(), "Invalid item" );
1248
return item->NextInTree();
1251
// ----------------------------------------------------------------------------
1253
// ----------------------------------------------------------------------------
1256
wxTreeListCtrl::GetItemText(wxTreeListItem item, unsigned col) const
1258
// We can't use wxCHECK_MSG() here because we don't have any empty string
1259
// reference to return so we use a static variable that exists just for the
1260
// purpose of this check -- and so we put it in its own scope so that it's
1261
// never even created during normal program execution.
1262
if ( !m_model || col >= m_model->GetColumnCount() )
1264
static wxString s_empty;
1268
wxFAIL_MSG( "Must create first" );
1270
else if ( col >= m_model->GetColumnCount() )
1272
wxFAIL_MSG( "Invalid column index" );
1278
return m_model->GetItemText(item, col);
1282
wxTreeListCtrl::SetItemText(wxTreeListItem item,
1284
const wxString& text)
1286
wxCHECK_RET( m_model, "Must create first" );
1287
wxCHECK_RET( col < m_model->GetColumnCount(), "Invalid column index" );
1289
m_model->SetItemText(item, col, text);
1292
void wxTreeListCtrl::SetItemImage(wxTreeListItem item, int closed, int opened)
1294
wxCHECK_RET( m_model, "Must create first" );
1296
if ( closed != NO_IMAGE || opened != NO_IMAGE )
1298
wxImageList* const imageList = GetImageList();
1299
wxCHECK_RET( imageList, "Can't set images without image list" );
1301
const int imageCount = imageList->GetImageCount();
1303
wxCHECK_RET( closed < imageCount, "Invalid image index" );
1304
wxCHECK_RET( opened < imageCount, "Invalid opened image index" );
1307
m_model->SetItemImage(item, closed, opened);
1310
wxClientData* wxTreeListCtrl::GetItemData(wxTreeListItem item) const
1312
wxCHECK_MSG( m_model, NULL, "Must create first" );
1314
return m_model->GetItemData(item);
1317
void wxTreeListCtrl::SetItemData(wxTreeListItem item, wxClientData* data)
1319
wxCHECK_RET( m_model, "Must create first" );
1321
m_model->SetItemData(item, data);
1324
// ----------------------------------------------------------------------------
1325
// Expanding and collapsing
1326
// ----------------------------------------------------------------------------
1328
void wxTreeListCtrl::Expand(wxTreeListItem item)
1330
wxCHECK_RET( m_view, "Must create first" );
1332
m_view->Expand(m_model->ToDVI(item));
1335
void wxTreeListCtrl::Collapse(wxTreeListItem item)
1337
wxCHECK_RET( m_view, "Must create first" );
1339
m_view->Collapse(m_model->ToDVI(item));
1342
bool wxTreeListCtrl::IsExpanded(wxTreeListItem item) const
1344
wxCHECK_MSG( m_view, false, "Must create first" );
1346
return m_view->IsExpanded(m_model->ToDVI(item));
1349
// ----------------------------------------------------------------------------
1351
// ----------------------------------------------------------------------------
1353
wxTreeListItem wxTreeListCtrl::GetSelection() const
1355
wxCHECK_MSG( m_view, wxTreeListItem(), "Must create first" );
1357
wxCHECK_MSG( !HasFlag(wxTL_MULTIPLE), wxTreeListItem(),
1358
"Must use GetSelections() with multi-selection controls!" );
1360
const wxDataViewItem dvi = m_view->GetSelection();
1362
return m_model->FromNonRootDVI(dvi);
1365
unsigned wxTreeListCtrl::GetSelections(wxTreeListItems& selections) const
1367
wxCHECK_MSG( m_view, 0, "Must create first" );
1369
wxDataViewItemArray selectionsDV;
1370
const unsigned numSelected = m_view->GetSelections(selectionsDV);
1371
selections.resize(numSelected);
1372
for ( unsigned n = 0; n < numSelected; n++ )
1373
selections[n] = m_model->FromNonRootDVI(selectionsDV[n]);
1378
void wxTreeListCtrl::Select(wxTreeListItem item)
1380
wxCHECK_RET( m_view, "Must create first" );
1382
m_view->Select(m_model->ToNonRootDVI(item));
1385
void wxTreeListCtrl::Unselect(wxTreeListItem item)
1387
wxCHECK_RET( m_view, "Must create first" );
1389
m_view->Unselect(m_model->ToNonRootDVI(item));
1392
bool wxTreeListCtrl::IsSelected(wxTreeListItem item) const
1394
wxCHECK_MSG( m_view, false, "Must create first" );
1396
return m_view->IsSelected(m_model->ToNonRootDVI(item));
1399
void wxTreeListCtrl::SelectAll()
1401
wxCHECK_RET( m_view, "Must create first" );
1403
m_view->SelectAll();
1406
void wxTreeListCtrl::UnselectAll()
1408
wxCHECK_RET( m_view, "Must create first" );
1410
m_view->UnselectAll();
1413
// ----------------------------------------------------------------------------
1414
// Checkbox handling
1415
// ----------------------------------------------------------------------------
1417
void wxTreeListCtrl::CheckItem(wxTreeListItem item, wxCheckBoxState state)
1419
wxCHECK_RET( m_model, "Must create first" );
1421
m_model->CheckItem(item, state);
1425
wxTreeListCtrl::CheckItemRecursively(wxTreeListItem item, wxCheckBoxState state)
1427
wxCHECK_RET( m_model, "Must create first" );
1429
m_model->CheckItem(item, state);
1431
for ( wxTreeListItem child = GetFirstChild(item);
1433
child = GetNextSibling(child) )
1435
CheckItemRecursively(child, state);
1439
void wxTreeListCtrl::UpdateItemParentStateRecursively(wxTreeListItem item)
1441
wxCHECK_RET( item.IsOk(), "Invalid item" );
1443
wxASSERT_MSG( HasFlag(wxTL_3STATE), "Can only be used with wxTL_3STATE" );
1447
wxTreeListItem parent = GetItemParent(item);
1448
if ( parent == GetRootItem() )
1450
// There is no checked state associated with the root item.
1454
// Set parent state to the state of this item if all the other children
1455
// have the same state too. Otherwise make it indeterminate.
1456
const wxCheckBoxState stateItem = GetCheckedState(item);
1457
CheckItem(parent, AreAllChildrenInState(parent, stateItem)
1459
: wxCHK_UNDETERMINED);
1461
// And do the same thing with the parent's parent too.
1466
wxCheckBoxState wxTreeListCtrl::GetCheckedState(wxTreeListItem item) const
1468
wxCHECK_MSG( item.IsOk(), wxCHK_UNDETERMINED, "Invalid item" );
1470
return item->m_checkedState;
1474
wxTreeListCtrl::AreAllChildrenInState(wxTreeListItem item,
1475
wxCheckBoxState state) const
1477
wxCHECK_MSG( item.IsOk(), false, "Invalid item" );
1479
for ( wxTreeListItem child = GetFirstChild(item);
1481
child = GetNextSibling(child) )
1483
if ( GetCheckedState(child) != state )
1490
// ----------------------------------------------------------------------------
1492
// ----------------------------------------------------------------------------
1494
void wxTreeListCtrl::SetSortColumn(unsigned col, bool ascendingOrder)
1496
wxCHECK_RET( col < m_view->GetColumnCount(), "Invalid column index" );
1498
m_view->GetColumn(col)->SetSortOrder(ascendingOrder);
1501
bool wxTreeListCtrl::GetSortColumn(unsigned* col, bool* ascendingOrder)
1503
const unsigned numColumns = m_view->GetColumnCount();
1504
for ( unsigned n = 0; n < numColumns; n++ )
1506
wxDataViewColumn* const column = m_view->GetColumn(n);
1507
if ( column->IsSortKey() )
1512
if ( ascendingOrder )
1513
*ascendingOrder = column->IsSortOrderAscending();
1522
void wxTreeListCtrl::SetItemComparator(wxTreeListItemComparator* comparator)
1524
m_comparator = comparator;
1527
// ----------------------------------------------------------------------------
1529
// ----------------------------------------------------------------------------
1531
void wxTreeListCtrl::SendItemEvent(wxEventType evt, wxDataViewEvent& eventDV)
1533
wxTreeListEvent eventTL(evt, this, m_model->FromDVI(eventDV.GetItem()));
1535
if ( !ProcessWindowEvent(eventTL) )
1541
if ( !eventTL.IsAllowed() )
1547
void wxTreeListCtrl::SendColumnEvent(wxEventType evt, wxDataViewEvent& eventDV)
1549
wxTreeListEvent eventTL(evt, this, wxTreeListItem());
1550
eventTL.SetColumn(eventDV.GetColumn());
1552
if ( !ProcessWindowEvent(eventTL) )
1558
if ( !eventTL.IsAllowed() )
1565
wxTreeListCtrl::OnItemToggled(wxTreeListItem item, wxCheckBoxState stateOld)
1567
wxTreeListEvent event(wxEVT_TREELIST_ITEM_CHECKED, this, item);
1568
event.SetOldCheckedState(stateOld);
1570
ProcessWindowEvent(event);
1573
void wxTreeListCtrl::OnSelectionChanged(wxDataViewEvent& event)
1575
SendItemEvent(wxEVT_TREELIST_SELECTION_CHANGED, event);
1578
void wxTreeListCtrl::OnItemExpanding(wxDataViewEvent& event)
1580
SendItemEvent(wxEVT_TREELIST_ITEM_EXPANDING, event);
1583
void wxTreeListCtrl::OnItemExpanded(wxDataViewEvent& event)
1585
SendItemEvent(wxEVT_TREELIST_ITEM_EXPANDED, event);
1588
void wxTreeListCtrl::OnItemActivated(wxDataViewEvent& event)
1590
SendItemEvent(wxEVT_TREELIST_ITEM_ACTIVATED, event);
1593
void wxTreeListCtrl::OnItemContextMenu(wxDataViewEvent& event)
1595
SendItemEvent(wxEVT_TREELIST_ITEM_CONTEXT_MENU, event);
1598
void wxTreeListCtrl::OnColumnSorted(wxDataViewEvent& event)
1600
SendColumnEvent(wxEVT_TREELIST_COLUMN_SORTED, event);
1603
// ----------------------------------------------------------------------------
1605
// ----------------------------------------------------------------------------
1607
void wxTreeListCtrl::OnSize(wxSizeEvent& event)
1613
// Resize the real control to cover our entire client area.
1614
const wxRect rect = GetClientRect();
1615
m_view->SetSize(rect);
1617
#ifdef wxHAS_GENERIC_DATAVIEWCTRL
1618
// The generic implementation doesn't refresh itself immediately which
1619
// is annoying during "live resizing", so do it forcefully here to
1620
// ensure that the items are re-laid out and the focus rectangle is
1621
// redrawn correctly (instead of leaving traces) while our size is
1623
wxWindow* const view = GetView();
1626
#endif // wxHAS_GENERIC_DATAVIEWCTRL
1628
// Resize the first column to take the remaining available space.
1629
const unsigned numColumns = GetColumnCount();
1633
// There is a bug in generic wxDataViewCtrl: if the column width sums
1634
// up to the total size, horizontal scrollbar (unnecessarily) appears,
1635
// so subtract a bit to ensure this doesn't happen.
1636
int remainingWidth = rect.width - 5;
1637
for ( unsigned n = 1; n < GetColumnCount(); n++ )
1639
remainingWidth -= GetColumnWidth(n);
1640
if ( remainingWidth <= 0 )
1642
// There is not enough space, as we're not going to give the
1643
// first column negative width anyhow, just don't do anything.
1648
SetColumnWidth(0, remainingWidth);
1652
wxWindow* wxTreeListCtrl::GetView() const
1654
#ifdef wxHAS_GENERIC_DATAVIEWCTRL
1655
return m_view->GetMainWindow();
1661
// ============================================================================
1662
// wxTreeListEvent implementation
1663
// ============================================================================
1665
wxIMPLEMENT_DYNAMIC_CLASS(wxTreeListEvent, wxNotifyEvent)
1667
#define wxDEFINE_TREELIST_EVENT(name) \
1668
wxDEFINE_EVENT(wxEVT_TREELIST_##name, wxTreeListEvent)
1670
wxDEFINE_TREELIST_EVENT(SELECTION_CHANGED);
1671
wxDEFINE_TREELIST_EVENT(ITEM_EXPANDING);
1672
wxDEFINE_TREELIST_EVENT(ITEM_EXPANDED);
1673
wxDEFINE_TREELIST_EVENT(ITEM_CHECKED);
1674
wxDEFINE_TREELIST_EVENT(ITEM_ACTIVATED);
1675
wxDEFINE_TREELIST_EVENT(ITEM_CONTEXT_MENU);
1676
wxDEFINE_TREELIST_EVENT(COLUMN_SORTED);
1678
#undef wxDEFINE_TREELIST_EVENT
1680
#endif // wxUSE_TREELISTCTRL