X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e55ad60e195f1007db921b2a73a3cac98ed9df65..77611ad4da9df336a0805508276a81b8f4437107:/src/generic/treectrl.cpp diff --git a/src/generic/treectrl.cpp b/src/generic/treectrl.cpp index 109827378a..9a43e04af0 100644 --- a/src/generic/treectrl.cpp +++ b/src/generic/treectrl.cpp @@ -1,1150 +1,2427 @@ ///////////////////////////////////////////////////////////////////////////// // Name: treectrl.cpp -// Purpose: +// Purpose: generic tree control implementation // Author: Robert Roebling // Created: 01/02/97 +// Modified: 22/10/98 - almost total rewrite, simpler interface (VZ) // Id: $Id$ // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// ============================================================================= +// declarations +// ============================================================================= + +// ----------------------------------------------------------------------------- +// headers +// ----------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "treectrl.h" + #pragma implementation "treectrl.h" +#endif + +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + +#ifdef __BORLANDC__ +#pragma hdrstop #endif #include "wx/treectrl.h" +#include "wx/generic/imaglist.h" #include "wx/settings.h" #include "wx/log.h" -#include +#include "wx/intl.h" +#include "wx/dynarray.h" +#include "wx/arrimpl.cpp" +#include "wx/dcclient.h" +#include "wx/msgdlg.h" -//----------------------------------------------------------------------------- -// wxTreeItem -//----------------------------------------------------------------------------- +// ----------------------------------------------------------------------------- +// array types +// ----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTreeItem, wxObject) +class WXDLLEXPORT wxGenericTreeItem; -wxTreeItem::wxTreeItem() -{ - m_mask = 0; - m_itemId = 0; - m_state = 0; - m_stateMask = 0; - m_image = -1; - m_selectedImage = -1; - m_children = 0; - m_data = 0; -} +WX_DEFINE_ARRAY(wxGenericTreeItem *, wxArrayGenericTreeItems); +WX_DEFINE_OBJARRAY(wxArrayTreeItemIds); -//----------------------------------------------------------------------------- -// wxTreeEvent -//----------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent,wxCommandEvent) +static const int NO_IMAGE = -1; -wxTreeEvent::wxTreeEvent( wxEventType commandType, int id ) : - wxCommandEvent( commandType, id ) +#define PIXELS_PER_UNIT 10 + +// ----------------------------------------------------------------------------- +// private classes +// ----------------------------------------------------------------------------- + +// timer used for enabling in-place edit +class WXDLLEXPORT wxTreeRenameTimer: public wxTimer { - m_code = 0; - m_oldItem = 0; -} +public: + wxTreeRenameTimer( wxTreeCtrl *owner ); -//----------------------------------------------------------------------------- -// wxGenericTreeItem -//----------------------------------------------------------------------------- + void Notify(); -IMPLEMENT_DYNAMIC_CLASS(wxGenericTreeItem,wxObject) +private: + wxTreeCtrl *m_owner; +}; -wxGenericTreeItem::wxGenericTreeItem( wxGenericTreeItem *parent ) +// control used for in-place edit +class WXDLLEXPORT wxTreeTextCtrl: public wxTextCtrl { - Reset(); - m_parent = parent; - m_hasHilight = FALSE; -} +public: + wxTreeTextCtrl() { } + wxTreeTextCtrl( wxWindow *parent, + const wxWindowID id, + bool *accept, + wxString *res, + wxTreeCtrl *owner, + const wxString &value = wxEmptyString, + const wxPoint &pos = wxDefaultPosition, + const wxSize &size = wxDefaultSize, + int style = 0, + const wxValidator& validator = wxDefaultValidator, + const wxString &name = wxTextCtrlNameStr ); -wxGenericTreeItem::wxGenericTreeItem( wxGenericTreeItem *parent, const wxTreeItem& item, wxDC *dc ) -{ - Reset(); - SetItem( item, dc ); - m_parent = parent; - m_hasHilight = FALSE; -} + void OnChar( wxKeyEvent &event ); + void OnKillFocus( wxFocusEvent &event ); -void wxGenericTreeItem::SetItem( const wxTreeItem &item, wxDC *dc ) -{ - if ((item.m_mask & wxTREE_MASK_HANDLE) == wxTREE_MASK_HANDLE) - m_itemId = item.m_itemId; - if ((item.m_mask & wxTREE_MASK_STATE) == wxTREE_MASK_STATE) - m_state = item.m_state; - if ((item.m_mask & wxTREE_MASK_TEXT) == wxTREE_MASK_TEXT) - m_text = item.m_text; - if ((item.m_mask & wxTREE_MASK_IMAGE) == wxTREE_MASK_IMAGE) - m_image = item.m_image; - if ((item.m_mask & wxTREE_MASK_SELECTED_IMAGE) == wxTREE_MASK_SELECTED_IMAGE) - m_selectedImage = item.m_selectedImage; - if ((item.m_mask & wxTREE_MASK_CHILDREN) == wxTREE_MASK_CHILDREN) - m_hasChildren = (item.m_children > 0); - if ((item.m_mask & wxTREE_MASK_DATA) == wxTREE_MASK_DATA) - m_data = item.m_data; - long lw = 0; - long lh = 0; - dc->GetTextExtent( m_text, &lw, &lh ); - m_width = lw; - m_height = lh; -} +private: + bool *m_accept; + wxString *m_res; + wxTreeCtrl *m_owner; + wxString m_startValue; -void wxGenericTreeItem::SetText( const wxString &text, wxDC *dc ) -{ - m_text = text; - long lw = 0; - long lh = 0; - dc->GetTextExtent( m_text, &lw, &lh ); - m_width = lw; - m_height = lh; -} + DECLARE_EVENT_TABLE() + DECLARE_DYNAMIC_CLASS(wxTreeTextCtrl); +}; -void wxGenericTreeItem::Reset() +// a tree item +class WXDLLEXPORT wxGenericTreeItem { - m_itemId = -1; - m_state = 0; - m_text = ""; - m_image = -1; - m_selectedImage = -1; -// m_children = 0; - m_hasChildren = FALSE; - m_data = 0; - m_x = 0; - m_y = 0; - m_height = 0; - m_width = 0; - m_xCross = 0; - m_yCross = 0; - m_level = 0; - m_children.DeleteContents( TRUE ); - m_isCollapsed = TRUE; - m_parent = (wxGenericTreeItem *) NULL; -} +public: + // ctors & dtor + wxGenericTreeItem() { m_data = NULL; } + wxGenericTreeItem( wxGenericTreeItem *parent, + const wxString& text, + wxDC& dc, + int image, int selImage, + wxTreeItemData *data ); -void wxGenericTreeItem::GetItem( wxTreeItem &item ) const -{ - if ((item.m_mask & wxTREE_MASK_STATE) == wxTREE_MASK_STATE) - item.m_state = m_state; - if ((item.m_mask & wxTREE_MASK_TEXT) == wxTREE_MASK_TEXT) - item.m_text = m_text; - if ((item.m_mask & wxTREE_MASK_IMAGE) == wxTREE_MASK_IMAGE) - item.m_image = m_image; - if ((item.m_mask & wxTREE_MASK_SELECTED_IMAGE) == wxTREE_MASK_SELECTED_IMAGE) - item.m_selectedImage = m_selectedImage; - if ((item.m_mask & wxTREE_MASK_CHILDREN) == wxTREE_MASK_CHILDREN) - item.m_children = (int)m_hasChildren; - if ((item.m_mask & wxTREE_MASK_DATA) == wxTREE_MASK_DATA) - item.m_data = m_data; -} + ~wxGenericTreeItem(); -bool wxGenericTreeItem::HasChildren() -{ - return m_hasChildren; -} + // trivial accessors + wxArrayGenericTreeItems& GetChildren() { return m_children; } -bool wxGenericTreeItem::HasPlus() -{ - if ( !HasChildren() ) - return FALSE; + const wxString& GetText() const { return m_text; } + int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const + { return m_images[which]; } + wxTreeItemData *GetData() const { return m_data; } - return !IsExpanded(); -} + // returns the current image for the item (depending on its + // selected/expanded/whatever state) + int GetCurrentImage() const; -int wxGenericTreeItem::NumberOfVisibleDescendents() -{ - int ret = m_children.Number(); - wxNode *node = m_children.First(); - while (node) - { - wxGenericTreeItem *item = (wxGenericTreeItem*)node->Data(); - ret += item->NumberOfVisibleDescendents(); - node = node->Next(); - } - return ret; -} + void SetText( const wxString &text ); + void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; } + void SetData(wxTreeItemData *data) { m_data = data; } -int wxGenericTreeItem::NumberOfVisibleChildren() -{ - return m_isCollapsed ? 0 : m_children.Number(); -} + void SetHasPlus(bool has = TRUE) { m_hasPlus = has; } -wxGenericTreeItem *wxGenericTreeItem::FindItem( long itemId ) const -{ - if (m_itemId == itemId) return (wxGenericTreeItem*)(this); - wxNode *node = m_children.First(); - while (node) - { - wxGenericTreeItem *item = (wxGenericTreeItem*)node->Data(); - wxGenericTreeItem *res = item->FindItem( itemId ); - if (res) return (wxGenericTreeItem*)(res); - node = node->Next(); - } - return (wxGenericTreeItem *) NULL; -} + void SetBold(bool bold) { m_isBold = bold; } + + int GetX() const { return m_x; } + int GetY() const { return m_y; } + + void SetX(int x) { m_x = x; } + void SetY(int y) { m_y = y; } + + int GetHeight() const { return m_height; } + int GetWidth() const { return m_width; } + + void SetHeight(int h) { m_height = h; } + void SetWidth(int w) { m_width = w; } + + + wxGenericTreeItem *GetParent() const { return m_parent; } + + // operations + // deletes all children notifying the treectrl about it if !NULL + // pointer given + void DeleteChildren(wxTreeCtrl *tree = NULL); + // FIXME don't know what is it for + void Reset(); + + // get count of all children (and grand children if 'recursively') + size_t GetChildrenCount(bool recursively = TRUE) const; + + void Insert(wxGenericTreeItem *child, size_t index) + { m_children.Insert(child, index); } + + void SetCross( int x, int y ); + void GetSize( int &x, int &y, const wxTreeCtrl* ); + + // return the item at given position (or NULL if no item), onButton is + // TRUE if the point belongs to the item's button, otherwise it lies + // on the button's label + wxGenericTreeItem *HitTest( const wxPoint& point, const wxTreeCtrl *, int &flags); + + void Expand() { m_isCollapsed = FALSE; } + void Collapse() { m_isCollapsed = TRUE; } + + void SetHilight( bool set = TRUE ) { m_hasHilight = set; } + + // status inquiries + bool HasChildren() const { return !m_children.IsEmpty(); } + bool IsSelected() const { return m_hasHilight; } + bool IsExpanded() const { return !m_isCollapsed; } + bool HasPlus() const { return m_hasPlus || HasChildren(); } + bool IsBold() const { return m_isBold; } + + // attributes + // get them - may be NULL + wxTreeItemAttr *GetAttributes() const { return m_attr; } + // get them ensuring that the pointer is not NULL + wxTreeItemAttr& Attr() + { + if ( !m_attr ) + m_attr = new wxTreeItemAttr; + + return *m_attr; + } + +private: + wxString m_text; + + // tree ctrl images for the normal, selected, expanded and + // expanded+selected states + int m_images[wxTreeItemIcon_Max]; + + wxTreeItemData *m_data; + + // use bitfields to save size + int m_isCollapsed :1; + int m_hasHilight :1; // same as focused + int m_hasPlus :1; // used for item which doesn't have + // children but has a [+] button + int m_isBold :1; // render the label in bold font -void wxGenericTreeItem::AddChild( wxGenericTreeItem *child ) + wxCoord m_x, m_y; + wxCoord m_height, m_width; + int m_xCross, m_yCross; + int m_level; + + wxArrayGenericTreeItems m_children; + wxGenericTreeItem *m_parent; + + wxTreeItemAttr *m_attr; +}; + +// ============================================================================= +// implementation +// ============================================================================= + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +// translate the key or mouse event flags to the type of selection we're +// dealing with +static void EventFlagsToSelType(long style, + bool shiftDown, + bool ctrlDown, + bool &is_multiple, + bool &extended_select, + bool &unselect_others) { - m_children.Append( child ); + is_multiple = (style & wxTR_MULTIPLE) != 0; + extended_select = shiftDown && is_multiple; + unselect_others = !(extended_select || (ctrlDown && is_multiple)); } -void wxGenericTreeItem::SetCross( int x, int y ) +// ----------------------------------------------------------------------------- +// wxTreeRenameTimer (internal) +// ----------------------------------------------------------------------------- + +wxTreeRenameTimer::wxTreeRenameTimer( wxTreeCtrl *owner ) { - m_xCross = x; - m_yCross = y; + m_owner = owner; } -void wxGenericTreeItem::GetSize( int &x, int &y ) +void wxTreeRenameTimer::Notify() { - if (y < m_y + 10) y = m_y +10; - int width = m_x + m_width; - if (width > x) x = width; - wxNode *node = m_children.First(); - while (node) - { - wxGenericTreeItem *item = (wxGenericTreeItem*)node->Data(); - item->GetSize( x, y ); - node = node->Next(); - } + m_owner->OnRenameTimer(); } -long wxGenericTreeItem::HitTest( const wxPoint& point, int &flags ) -{ - if ((point.y > m_y) && (point.y < m_y+m_height)) - { - if ((point.x > m_xCross-5) && - (point.x < m_xCross+5) && - (point.y > m_yCross-5) && - (point.y < m_yCross+5) && - (m_hasChildren)) - { - flags = wxTREE_HITTEST_ONITEMBUTTON; - return m_itemId; - } - if ((point.x > m_x) && (point.x < m_x+m_width)) - { - flags = wxTREE_HITTEST_ONITEMLABEL; - return m_itemId; - } - if (point.x > m_x) +//----------------------------------------------------------------------------- +// wxTreeTextCtrl (internal) +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxTreeTextCtrl,wxTextCtrl); + +BEGIN_EVENT_TABLE(wxTreeTextCtrl,wxTextCtrl) + EVT_CHAR (wxTreeTextCtrl::OnChar) + EVT_KILL_FOCUS (wxTreeTextCtrl::OnKillFocus) +END_EVENT_TABLE() + +wxTreeTextCtrl::wxTreeTextCtrl( wxWindow *parent, + const wxWindowID id, + bool *accept, + wxString *res, + wxTreeCtrl *owner, + const wxString &value, + const wxPoint &pos, + const wxSize &size, + int style, + const wxValidator& validator, + const wxString &name ) + : wxTextCtrl( parent, id, value, pos, size, style, validator, name ) +{ + m_res = res; + m_accept = accept; + m_owner = owner; + (*m_accept) = FALSE; + (*m_res) = wxEmptyString; + m_startValue = value; +} + +void wxTreeTextCtrl::OnChar( wxKeyEvent &event ) +{ + if (event.m_keyCode == WXK_RETURN) { - flags = wxTREE_HITTEST_ONITEMRIGHT; - return m_itemId; + (*m_accept) = TRUE; + (*m_res) = GetValue(); + + if (!wxPendingDelete.Member(this)) + wxPendingDelete.Append(this); + + if ((*m_accept) && ((*m_res) != m_startValue)) + m_owner->OnRenameAccept(); + + return; } - flags = wxTREE_HITTEST_ONITEMINDENT; - return m_itemId; - } - else - { - if (!m_isCollapsed) + if (event.m_keyCode == WXK_ESCAPE) { - wxNode *node = m_children.First(); - while (node) - { - wxGenericTreeItem *child = (wxGenericTreeItem*)node->Data(); - long res = child->HitTest( point, flags ); - if (res != -1) return res; - node = node->Next(); - } + (*m_accept) = FALSE; + (*m_res) = ""; + + if (!wxPendingDelete.Member(this)) + wxPendingDelete.Append(this); + + return; } - } - return -1; + event.Skip(); } -void wxGenericTreeItem::PrepareEvent( wxTreeEvent &event ) +void wxTreeTextCtrl::OnKillFocus( wxFocusEvent &WXUNUSED(event) ) { - event.m_item.m_itemId = m_itemId; - event.m_item.m_state = m_state; - event.m_item.m_text = m_text; - event.m_item.m_image = m_image; - event.m_item.m_selectedImage = m_selectedImage; - event.m_item.m_children = (int)m_hasChildren; - event.m_item.m_data = m_data; - event.m_oldItem = 0; - event.m_code = 0; - event.m_pointDrag.x = 0; - event.m_pointDrag.y = 0; -} + if (!wxPendingDelete.Member(this)) + wxPendingDelete.Append(this); -void wxGenericTreeItem::SendKeyDown( wxWindow *target ) -{ - wxTreeEvent event( wxEVT_COMMAND_TREE_KEY_DOWN, target->GetId() ); - PrepareEvent( event ); - event.SetEventObject( target ); - target->ProcessEvent( event ); + if ((*m_accept) && ((*m_res) != m_startValue)) + m_owner->OnRenameAccept(); } -void wxGenericTreeItem::SendSelected( wxWindow *target ) +// ----------------------------------------------------------------------------- +// wxTreeEvent +// ----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent) + +wxTreeEvent::wxTreeEvent( wxEventType commandType, int id ) + : wxNotifyEvent( commandType, id ) { - wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGED, target->GetId() ); - PrepareEvent( event ); - event.SetEventObject( target ); - target->ProcessEvent( event ); + m_code = 0; + m_itemOld = (wxGenericTreeItem *)NULL; } -void wxGenericTreeItem::SendDelete( wxWindow *target ) +// ----------------------------------------------------------------------------- +// wxGenericTreeItem +// ----------------------------------------------------------------------------- + +wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent, + const wxString& text, + wxDC& WXUNUSED(dc), + int image, int selImage, + wxTreeItemData *data) + : m_text(text) { - wxTreeEvent event( wxEVT_COMMAND_TREE_DELETE_ITEM, target->GetId() ); - PrepareEvent( event ); - event.SetEventObject( target ); - target->ProcessEvent( event ); + m_images[wxTreeItemIcon_Normal] = image; + m_images[wxTreeItemIcon_Selected] = selImage; + m_images[wxTreeItemIcon_Expanded] = NO_IMAGE; + m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE; + + m_data = data; + m_x = m_y = 0; + m_xCross = m_yCross = 0; + + m_level = 0; + + m_isCollapsed = TRUE; + m_hasHilight = FALSE; + m_hasPlus = FALSE; + m_isBold = FALSE; + + m_parent = parent; + + m_attr = (wxTreeItemAttr *)NULL; + + // We don't know the height here yet. + m_width = 0; + m_height = 0; } -void wxGenericTreeItem::SendExpand( wxWindow *target ) +wxGenericTreeItem::~wxGenericTreeItem() { - m_isCollapsed = FALSE; + delete m_data; - wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_EXPANDING, target->GetId() ); - event.SetEventObject( target ); - PrepareEvent( event ); - target->ProcessEvent( event ); + delete m_attr; - event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED); - PrepareEvent( event ); - target->ProcessEvent( event ); + wxASSERT_MSG( m_children.IsEmpty(), + wxT("please call DeleteChildren() before deleting the item") ); } -void wxGenericTreeItem::SendCollapse( wxWindow *target ) +void wxGenericTreeItem::DeleteChildren(wxTreeCtrl *tree) { - m_isCollapsed = TRUE; + size_t count = m_children.Count(); + for ( size_t n = 0; n < count; n++ ) + { + wxGenericTreeItem *child = m_children[n]; + if (tree) + tree->SendDeleteEvent(child); - wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, target->GetId() ); - event.SetEventObject( target ); - PrepareEvent( event ); - target->ProcessEvent( event ); + child->DeleteChildren(tree); + delete child; + } - event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED); - PrepareEvent( event ); - target->ProcessEvent( event ); + m_children.Empty(); } -void wxGenericTreeItem::SetHilight( bool set ) +void wxGenericTreeItem::SetText( const wxString &text ) { - m_hasHilight = set; + m_text = text; } -bool wxGenericTreeItem::HasHilight() +void wxGenericTreeItem::Reset() { - return m_hasHilight; -} + m_text.Empty(); + for ( int i = 0; i < wxTreeItemIcon_Max; i++ ) + { + m_images[i] = NO_IMAGE; + } -//----------------------------------------------------------------------------- -// wxTreeCtrl -//----------------------------------------------------------------------------- + m_data = NULL; + m_x = m_y = + m_height = m_width = 0; + m_xCross = + m_yCross = 0; -IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl,wxScrolledWindow) + m_level = 0; -BEGIN_EVENT_TABLE(wxTreeCtrl,wxScrolledWindow) - EVT_PAINT (wxTreeCtrl::OnPaint) - EVT_MOUSE_EVENTS (wxTreeCtrl::OnMouse) - EVT_CHAR (wxTreeCtrl::OnChar) - EVT_SET_FOCUS (wxTreeCtrl::OnSetFocus) - EVT_KILL_FOCUS (wxTreeCtrl::OnKillFocus) -END_EVENT_TABLE() + DeleteChildren(); + m_isCollapsed = TRUE; -wxTreeCtrl::wxTreeCtrl() -{ - m_current = (wxGenericTreeItem *) NULL; - m_anchor = (wxGenericTreeItem *) NULL; - m_hasFocus = FALSE; - m_xScroll = 0; - m_yScroll = 0; - m_lastId = 0; - m_lineHeight = 10; - m_indent = 15; - m_isCreated = FALSE; - m_hilightBrush = new wxBrush( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHT), wxSOLID ); - m_imageList = (wxImageList *) NULL; - m_smallImageList = (wxImageList *) NULL; -} - -wxTreeCtrl::wxTreeCtrl(wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxString& name ) -{ - m_current = (wxGenericTreeItem *) NULL; - m_anchor = (wxGenericTreeItem *) NULL; - m_hasFocus = FALSE; - m_xScroll = 0; - m_yScroll = 0; - m_lastId = 0; - m_lineHeight = 10; - m_indent = 15; - m_isCreated = FALSE; - m_hilightBrush = new wxBrush( wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHT), wxSOLID ); - m_imageList = (wxImageList *) NULL; - m_smallImageList = (wxImageList *) NULL; - Create( parent, id, pos, size, style, name ); + m_parent = (wxGenericTreeItem *)NULL; } -wxTreeCtrl::~wxTreeCtrl() +size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const { - if (m_hilightBrush) delete m_hilightBrush; - if (m_anchor) delete m_anchor; + size_t count = m_children.Count(); + if ( !recursively ) + return count; + + size_t total = count; + for (size_t n = 0; n < count; ++n) + { + total += m_children[n]->GetChildrenCount(); + } + + return total; } -bool wxTreeCtrl::Create(wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxString& name ) +void wxGenericTreeItem::SetCross( int x, int y ) { - wxScrolledWindow::Create( parent, id, pos, size, style, name ); - SetBackgroundColour( *wxWHITE ); - m_dottedPen = wxPen( *wxBLACK, 0, 0 ); - return TRUE; + m_xCross = x; + m_yCross = y; } -int wxTreeCtrl::GetCount() const +void wxGenericTreeItem::GetSize( int &x, int &y, const wxTreeCtrl *theTree ) { - if (!m_anchor) return 0; - return m_anchor->NumberOfVisibleDescendents(); + int bottomY=m_y+theTree->GetLineHeight(this); + if ( y < bottomY ) y = bottomY; + int width = m_x + m_width; + if ( x < width ) x = width; + + if (IsExpanded()) + { + size_t count = m_children.Count(); + for ( size_t n = 0; n < count; ++n ) + { + m_children[n]->GetSize( x, y, theTree ); + } + } } -long wxTreeCtrl::InsertItem( long parent, const wxString& label, int image, - int selImage, long WXUNUSED(insertAfter) ) +wxGenericTreeItem *wxGenericTreeItem::HitTest( const wxPoint& point, + const wxTreeCtrl *theTree, + int &flags) { - wxGenericTreeItem *p = (wxGenericTreeItem *) NULL; - if (parent == 0) - { - if (m_anchor) return -1; - } - else - { - p = FindItem( parent ); - if (!p) return -1; - } - wxTreeItem item; - m_lastId++; - item.m_mask = wxTREE_MASK_HANDLE; - item.m_itemId = m_lastId; - if (!label.IsNull() || (label == "")) - { - item.m_text = label; - item.m_mask |= wxTREE_MASK_TEXT; - } - if (image >= 0) - { - item.m_image = image; - item.m_mask |= wxTREE_MASK_IMAGE; - } - if (selImage >= 0) - { - item.m_selectedImage = selImage; - item.m_mask |= wxTREE_MASK_SELECTED_IMAGE; - } + if ((point.y > m_y) && (point.y < m_y + theTree->GetLineHeight(this))) + { + if (point.y < m_y+theTree->GetLineHeight(this)/2 ) + flags |= wxTREE_HITTEST_ONITEMUPPERPART; + else + flags |= wxTREE_HITTEST_ONITEMLOWERPART; - wxClientDC dc(this); - wxGenericTreeItem *new_child = new wxGenericTreeItem( p, item, &dc ); - if (p) - p->AddChild( new_child ); - else - m_anchor = new_child; + // 5 is the size of the plus sign + if ((point.x > m_xCross-5) && (point.x < m_xCross+5) && + (point.y > m_yCross-5) && (point.y < m_yCross+5) && + (IsExpanded() || HasPlus())) + { + flags|=wxTREE_HITTEST_ONITEMBUTTON; + return this; + } - if (p) - { - CalculatePositions(); + if ((point.x >= m_x) && (point.x <= m_x+m_width)) + { + int image_w = -1; + int image_h; - if (!p->HasChildren()) p->m_hasChildren = TRUE; + // assuming every image (normal and selected ) has the same size ! + if ( (GetImage() != NO_IMAGE) && theTree->m_imageListNormal ) + theTree->m_imageListNormal->GetSize(GetImage(), image_w, image_h); - int ch = 0; - GetClientSize( (int *) NULL, &ch ); + if ((image_w != -1) && (point.x <= m_x + image_w + 1)) + flags |= wxTREE_HITTEST_ONITEMICON; + else + flags |= wxTREE_HITTEST_ONITEMLABEL; - PrepareDC( dc ); - - wxRectangle rect; - rect.x = dc.LogicalToDeviceX( 0 ); - rect.y = 0; - rect.width = 10000; - rect.height = ch; + return this; + } - if (p->m_children.Number() == 1) - { - rect.y = dc.LogicalToDeviceY( p->m_y ); + if (point.x < m_x) + flags |= wxTREE_HITTEST_ONITEMINDENT; + if (point.x > m_x+m_width) + flags |= wxTREE_HITTEST_ONITEMRIGHT; + + return this; } else { - wxNode *node = p->m_children.Member( new_child )->Previous(); - wxGenericTreeItem* last_child = (wxGenericTreeItem*)node->Data(); - rect.y = dc.LogicalToDeviceY( last_child->m_y ); + if (!m_isCollapsed) + { + size_t count = m_children.Count(); + for ( size_t n = 0; n < count; n++ ) + { + wxGenericTreeItem *res = m_children[n]->HitTest( point, theTree, flags ); + if ( res != NULL ) + return res; + } + } } - AdjustMyScrollbars(); - - if (rect.height > 0) Refresh( FALSE, &rect); - } - else - { - AdjustMyScrollbars(); - - Refresh(); - } + flags|=wxTREE_HITTEST_NOWHERE; - return m_lastId; + return (wxGenericTreeItem*) NULL; } -long wxTreeCtrl::InsertItem( long parent, wxTreeItem &info, long WXUNUSED(insertAfter) ) +int wxGenericTreeItem::GetCurrentImage() const { - int oldMask = info.m_mask; - wxGenericTreeItem *p = (wxGenericTreeItem *) NULL; - if (parent == 0) - { - if (m_anchor) return -1; - } - else - { - p = FindItem( parent ); - if (!p) + int image = NO_IMAGE; + if ( IsExpanded() ) { - printf( "TreeItem not found.\n" ); - return -1; - } - } - long ret = 0; - if ((info.m_mask & wxTREE_MASK_HANDLE) == 0) - { - m_lastId++; - info.m_itemId = m_lastId; - info.m_mask |= wxTREE_MASK_HANDLE; - ret = m_lastId; - } - else - { - ret = info.m_itemId; - } - - wxClientDC dc(this); - wxGenericTreeItem *new_child = new wxGenericTreeItem( p, info, &dc ); - if (p) - p->AddChild( new_child ); - else - m_anchor = new_child; - - if (p) - { - CalculatePositions(); - - if (!p->HasChildren()) p->m_hasChildren = TRUE; - - int ch = 0; - GetClientSize( (int *) NULL, &ch ); - - PrepareDC( dc ); - - wxRectangle rect; - rect.x = dc.LogicalToDeviceX( 0 ); - rect.y = 0; - rect.width = 10000; - rect.height = ch; + if ( IsSelected() ) + { + image = GetImage(wxTreeItemIcon_SelectedExpanded); + } - if (p->m_children.Number() == 1) + if ( image == NO_IMAGE ) + { + // we usually fall back to the normal item, but try just the + // expanded one (and not selected) first in this case + image = GetImage(wxTreeItemIcon_Expanded); + } + } + else // not expanded { - rect.y = dc.LogicalToDeviceY( p->m_y ); + if ( IsSelected() ) + image = GetImage(wxTreeItemIcon_Selected); } - else + + // may be it doesn't have the specific image we want, try the default one + // instead + if ( image == NO_IMAGE ) { - wxNode *node = p->m_children.Member( new_child )->Previous(); - wxGenericTreeItem* last_child = (wxGenericTreeItem*)node->Data(); - rect.y = dc.LogicalToDeviceY( last_child->m_y ); + image = GetImage(); } - AdjustMyScrollbars(); + return image; +} - if (rect.height > 0) Refresh( FALSE, &rect); - } - else - { - AdjustMyScrollbars(); +// ----------------------------------------------------------------------------- +// wxTreeCtrl implementation +// ----------------------------------------------------------------------------- - Refresh(); - } +IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxScrolledWindow) - info.m_mask = oldMask; - return ret; -} +BEGIN_EVENT_TABLE(wxTreeCtrl,wxScrolledWindow) + EVT_PAINT (wxTreeCtrl::OnPaint) + EVT_MOUSE_EVENTS (wxTreeCtrl::OnMouse) + EVT_CHAR (wxTreeCtrl::OnChar) + EVT_SET_FOCUS (wxTreeCtrl::OnSetFocus) + EVT_KILL_FOCUS (wxTreeCtrl::OnKillFocus) + EVT_IDLE (wxTreeCtrl::OnIdle) +END_EVENT_TABLE() -bool wxTreeCtrl::ExpandItem( long item, int action ) +// ----------------------------------------------------------------------------- +// construction/destruction +// ----------------------------------------------------------------------------- + +void wxTreeCtrl::Init() { - wxGenericTreeItem *i = FindItem( item ); - if (!i) - return FALSE; + m_current = + m_key_current = + m_anchor = (wxGenericTreeItem *) NULL; + m_hasFocus = FALSE; + m_dirty = FALSE; - switch (action) - { - case wxTREE_EXPAND_EXPAND: - { - i->SendExpand( this ); - break; - } + m_xScroll = 0; + m_yScroll = 0; + m_lineHeight = 10; + m_indent = 15; + m_spacing = 18; - case wxTREE_EXPAND_COLLAPSE_RESET: - case wxTREE_EXPAND_COLLAPSE: - { - wxNode *node = i->m_children.First(); - while (node) - { - wxGenericTreeItem *child = (wxGenericTreeItem*)node->Data(); - if ( child->IsExpanded() ) - ExpandItem( child->m_itemId, wxTREE_EXPAND_COLLAPSE ); - node = node->Next(); - } - - CalculatePositions(); - - i->SendCollapse( this ); - break; - } + m_hilightBrush = new wxBrush + ( + wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHT), + wxSOLID + ); - case wxTREE_EXPAND_TOGGLE: - { - if ( i->IsExpanded() ) - ExpandItem( item, wxTREE_EXPAND_COLLAPSE ); - else - ExpandItem( item, wxTREE_EXPAND_EXPAND ); - return TRUE; - } - } + m_imageListNormal = + m_imageListState = (wxImageList *) NULL; - wxClientDC dc(this); - PrepareDC(dc); - - int cw = 0; - int ch = 0; - GetClientSize( &cw, &ch ); - - wxRect rect; - rect.x = dc.LogicalToDeviceX( 0 ); - rect.width = cw; - rect.y = dc.LogicalToDeviceY( i->m_y ); - rect.height = ch; - Refresh( TRUE, &rect ); + m_dragCount = 0; + m_isDragging = FALSE; + m_dropTarget = + m_oldSelection = (wxGenericTreeItem *)NULL; - AdjustMyScrollbars(); + m_renameTimer = new wxTreeRenameTimer( this ); - return TRUE; + m_normalFont = wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT ); + m_boldFont = wxFont( m_normalFont.GetPointSize(), + m_normalFont.GetFamily(), + m_normalFont.GetStyle(), + wxBOLD, + m_normalFont.GetUnderlined()); } -void wxTreeCtrl::DeleteItem( long item ) +bool wxTreeCtrl::Create(wxWindow *parent, wxWindowID id, + const wxPoint& pos, const wxSize& size, + long style, + const wxValidator &validator, + const wxString& name ) { - wxGenericTreeItem *pItem = FindItem( item ); - wxCHECK_RET( pItem != NULL, _("wxTreeCtrl::DeleteItem: no such pItem.") ); + Init(); + + wxScrolledWindow::Create( parent, id, pos, size, style|wxHSCROLL|wxVSCROLL, name ); + +#if wxUSE_VALIDATORS + SetValidator( validator ); +#endif - pItem->m_parent->m_children.DeleteObject(pItem); + SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) ); +// m_dottedPen = wxPen( "grey", 0, wxDOT ); too slow under XFree86 + m_dottedPen = wxPen( "grey", 0, 0 ); - Refresh(); + return TRUE; } -void wxTreeCtrl::DeleteChildren( long item ) +wxTreeCtrl::~wxTreeCtrl() { - wxGenericTreeItem *pItem = FindItem( item ); - wxCHECK_RET( pItem != NULL, _("wxTreeCtrl::DeleteChildren: no such pItem.") ); + wxDELETE( m_hilightBrush ); - pItem->m_children.Clear(); + DeleteAllItems(); - Refresh(); + delete m_renameTimer; } -bool wxTreeCtrl::DeleteAllItems() -{ - delete m_anchor; - m_anchor = (wxGenericTreeItem *) NULL; - Refresh(); - return TRUE; -} +// ----------------------------------------------------------------------------- +// accessors +// ----------------------------------------------------------------------------- -bool wxTreeCtrl::GetItem( wxTreeItem &info ) const +size_t wxTreeCtrl::GetCount() const { - wxGenericTreeItem *i = FindItem( info.m_itemId ); - if (!i) return FALSE; - i->GetItem( info ); - return TRUE; + return m_anchor == NULL ? 0u : m_anchor->GetChildrenCount(); } -long wxTreeCtrl::GetItemData( long item ) const +void wxTreeCtrl::SetIndent(unsigned int indent) { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return 0; - return i->m_data; + m_indent = indent; + m_dirty = TRUE; } -wxString wxTreeCtrl::GetItemText( long item ) const +void wxTreeCtrl::SetSpacing(unsigned int spacing) { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return ""; - return i->m_text; + m_spacing = spacing; + m_dirty = TRUE; } -int wxTreeCtrl::GetItemImage(long item) const +size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively) { - wxGenericTreeItem *i = FindItem( item ); - return i == 0 ? -1 : i->GetImage(); + wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") ); + + return item.m_pItem->GetChildrenCount(recursively); } -long wxTreeCtrl::GetParent( long item ) const +// ----------------------------------------------------------------------------- +// functions to work with tree items +// ----------------------------------------------------------------------------- + +wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return -1; - i = i->m_parent; - if (!i) return -1; - return i->m_parent->m_itemId; + wxCHECK_MSG( item.IsOk(), wxT(""), wxT("invalid tree item") ); + + return item.m_pItem->GetText(); } -long wxTreeCtrl::GetRootItem() const +int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, + wxTreeItemIcon which) const { - if (m_anchor) return m_anchor->m_itemId; - return -1; + wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") ); + + return item.m_pItem->GetImage(which); } -long wxTreeCtrl::GetChild( long item ) const +wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return -1; - if (!i->HasChildren()) return -1; - wxNode *node = i->m_children.First(); - i = (wxGenericTreeItem *)node->Data(); - return i->m_itemId; + wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") ); + + return item.m_pItem->GetData(); } -long wxTreeCtrl::GetNextItem( long item, int code ) const +void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) { - switch (code) - { - case wxTREE_NEXT_CARET: return GetSelection(); - case wxTREE_NEXT_CHILD: return GetChild( item ); - case wxTREE_NEXT_ROOT: return GetRootItem(); - case wxTREE_NEXT_PARENT: return GetParent( item ); - case wxTREE_NEXT_NEXT: - { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return -1; - if (i->m_parent) - { - wxNode *node = i->m_parent->m_children.Member( i ); - if (!node) return -1; - node = node->Next(); - if (!node) return -1; - i = (wxGenericTreeItem *)node->Data(); - return i->m_itemId; - } - break; - } - case wxTREE_NEXT_PREVIOUS: - { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return -1; - if (i->m_parent) - { - wxNode *node = i->m_parent->m_children.Member( i ); - if (!node) return -1; - node = node->Previous(); - if (!node) return -1; - i = (wxGenericTreeItem *)node->Data(); - return i->m_itemId; - } - break; - } - } - return -1; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxClientDC dc(this); + wxGenericTreeItem *pItem = item.m_pItem; + pItem->SetText(text); + CalculateSize(pItem, dc); + RefreshLine(pItem); } -long wxTreeCtrl::GetSelection() const +void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, + int image, + wxTreeItemIcon which) { - return m_current ? m_current->GetItemId() : -1; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxGenericTreeItem *pItem = item.m_pItem; + pItem->SetImage(image, which); + + wxClientDC dc(this); + CalculateSize(pItem, dc); + RefreshLine(pItem); } -bool wxTreeCtrl::SelectItem( long itemId ) +void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) { - wxGenericTreeItem *pItem = FindItem(itemId); - if ( !pItem ) { - wxLogDebug(_("Can't select an item %d which doesn't exist."), itemId); + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); - return FALSE; - } + item.m_pItem->SetData(data); +} - SelectItem(pItem); +void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) +{ + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); - return TRUE; + wxGenericTreeItem *pItem = item.m_pItem; + pItem->SetHasPlus(has); + RefreshLine(pItem); } -void wxTreeCtrl::SelectItem(wxGenericTreeItem *item) +void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold) { - if (m_current != item) - { - if (m_current) + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + // avoid redrawing the tree if no real change + wxGenericTreeItem *pItem = item.m_pItem; + if ( pItem->IsBold() != bold ) { - m_current->SetHilight( FALSE ); - RefreshLine( m_current ); + pItem->SetBold(bold); + RefreshLine(pItem); } - m_current = item; - m_current->SetHilight( TRUE ); - RefreshLine( m_current ); - - m_current->SendSelected( this ); - } } -bool wxTreeCtrl::ItemHasChildren( long item ) const +void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, + const wxColour& col) { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return FALSE; - return i->m_hasChildren; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxGenericTreeItem *pItem = item.m_pItem; + pItem->Attr().SetTextColour(col); + RefreshLine(pItem); } -void wxTreeCtrl::SetIndent( int indent ) +void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, + const wxColour& col) { - m_indent = indent; - Refresh(); + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxGenericTreeItem *pItem = item.m_pItem; + pItem->Attr().SetBackgroundColour(col); + RefreshLine(pItem); } -int wxTreeCtrl::GetIndent() const +void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) { - return m_indent; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxGenericTreeItem *pItem = item.m_pItem; + pItem->Attr().SetFont(font); + RefreshLine(pItem); } -bool wxTreeCtrl::SetItem( wxTreeItem &info ) +// ----------------------------------------------------------------------------- +// item status inquiries +// ----------------------------------------------------------------------------- + +bool wxTreeCtrl::IsVisible(const wxTreeItemId& WXUNUSED(item)) const { - wxGenericTreeItem *i = FindItem( info.m_itemId ); - if (!i) return FALSE; - wxClientDC dc(this); - i->SetItem( info, &dc ); - Refresh(); - return TRUE; + wxFAIL_MSG(wxT("not implemented")); + + return TRUE; } -bool wxTreeCtrl::SetItemData( long item, long data ) +bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return FALSE; - i->m_data = data; - return TRUE; + wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") ); + + return !item.m_pItem->GetChildren().IsEmpty(); } -bool wxTreeCtrl::SetItemText( long item, const wxString &text ) +bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const { - wxGenericTreeItem *i = FindItem( item ); - if (!i) return FALSE; - wxClientDC dc(this); - i->SetText( text, &dc ); - return TRUE; + wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") ); + + return item.m_pItem->IsExpanded(); } -void wxTreeCtrl::SetItemImage(long item, int image, int imageSel) const +bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const { - wxGenericTreeItem *i = FindItem( item ); - if ( i != 0 ) - { - i->SetImage(image); - i->SetSelectedImage(imageSel); - } -} + wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") ); -int wxTreeCtrl::GetItemState( long item, long stateMask ) const -{ - wxGenericTreeItem *i = FindItem( item ); - if (!i) return 0; - int ret = 0; - - // Currently, an item is always selected _and_ focussed in wxGTK - - if (stateMask & wxTREE_STATE_FOCUSED) - if (m_current == i) - ret += wxTREE_STATE_FOCUSED; - - if (stateMask & wxTREE_STATE_SELECTED) - if (m_current == i) - ret += wxTREE_STATE_SELECTED; - - if (stateMask & wxTREE_STATE_EXPANDED) - if (i->IsExpanded()) - ret += wxTREE_STATE_EXPANDED; - - return ret; -} - -bool wxTreeCtrl::SetItemState( long item, long state, long stateMask ) -{ - wxGenericTreeItem *i = FindItem( item ); - if (!i) return FALSE; - - if (stateMask & wxTREE_STATE_FOCUSED) - { - if (state & wxTREE_STATE_FOCUSED) - SelectItem( i ); - } - - if (stateMask & wxTREE_STATE_SELECTED) - { - if (state & wxTREE_STATE_SELECTED) - SelectItem( i ); - } - - if (stateMask & wxTREE_STATE_EXPANDED) - { - if (state & wxTREE_STATE_EXPANDED) - ExpandItem( i->m_itemId, wxTREE_EXPAND_EXPAND ); - else - ExpandItem( i->m_itemId, wxTREE_EXPAND_COLLAPSE ); - } - - return TRUE; + return item.m_pItem->IsSelected(); } -long wxTreeCtrl::HitTest( const wxPoint& point, int &flags ) +bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const { - flags = 0; - if (!m_anchor) return -1; - return m_anchor->HitTest( point, flags ); + wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") ); + + return item.m_pItem->IsBold(); } -wxImageList *wxTreeCtrl::GetImageList( int which ) const +// ----------------------------------------------------------------------------- +// navigation +// ----------------------------------------------------------------------------- + +wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + return item.m_pItem->GetParent(); +} + +wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, long& cookie) const { - if (which == wxIMAGE_LIST_NORMAL) return m_imageList; - return m_smallImageList; + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + cookie = 0; + return GetNextChild(item, cookie); } -void wxTreeCtrl::SetImageList( wxImageList *imageList, int which ) +wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) const { - if (which == wxIMAGE_LIST_NORMAL) + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + wxArrayGenericTreeItems& children = item.m_pItem->GetChildren(); + if ( (size_t)cookie < children.Count() ) { - if (m_imageList) delete m_imageList; - m_imageList = imageList; + return children.Item((size_t)cookie++); } else { - if (m_smallImageList) delete m_smallImageList; - m_smallImageList = imageList; + // there are no more of them + return wxTreeItemId(); } } -void wxTreeCtrl::AdjustMyScrollbars() +wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const { - if (m_anchor) + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + wxArrayGenericTreeItems& children = item.m_pItem->GetChildren(); + return (children.IsEmpty() ? wxTreeItemId() : wxTreeItemId(children.Last())); +} + +wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + wxGenericTreeItem *i = item.m_pItem; + wxGenericTreeItem *parent = i->GetParent(); + if ( parent == NULL ) { - int x = 0; - int y = 0; - m_anchor->GetSize( x, y ); - y += 2*m_lineHeight; - int x_pos = GetScrollPos( wxHORIZONTAL ); - int y_pos = GetScrollPos( wxVERTICAL ); - SetScrollbars( 10, 10, x/10, y/10, x_pos, y_pos ); + // root item doesn't have any siblings + return wxTreeItemId(); } - else + + wxArrayGenericTreeItems& siblings = parent->GetChildren(); + int index = siblings.Index(i); + wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent? + + size_t n = (size_t)(index + 1); + return n == siblings.Count() ? wxTreeItemId() : wxTreeItemId(siblings[n]); +} + +wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + wxGenericTreeItem *i = item.m_pItem; + wxGenericTreeItem *parent = i->GetParent(); + if ( parent == NULL ) { - SetScrollbars( 0, 0, 0, 0 ); + // root item doesn't have any siblings + return wxTreeItemId(); } + + wxArrayGenericTreeItems& siblings = parent->GetChildren(); + int index = siblings.Index(i); + wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent? + + return index == 0 ? wxTreeItemId() + : wxTreeItemId(siblings[(size_t)(index - 1)]); } -void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxPaintDC &dc, int level, int &y ) +wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const { - int horizX = level*m_indent; + wxFAIL_MSG(wxT("not implemented")); + + return wxTreeItemId(); +} - item->m_x = horizX+33; - item->m_y = y-m_lineHeight/3; - item->m_height = m_lineHeight; +wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); - item->SetCross( horizX+15, y ); + wxFAIL_MSG(wxT("not implemented")); - int oldY = y; + return wxTreeItemId(); +} - int exposed_x = dc.LogicalToDeviceX( 0 ); - int exposed_y = dc.LogicalToDeviceY( item->m_y-2 ); - - if (IsExposed( exposed_x, exposed_y, 1000, m_lineHeight+4 )) - { - int startX = horizX; - int endX = horizX + 10; - - if (!item->HasChildren()) endX += 20; - - dc.DrawLine( startX, y, endX, y ); - - if (item->HasChildren()) - { - dc.DrawLine( horizX+20, y, horizX+30, y ); - dc.SetPen( *wxGREY_PEN ); - dc.DrawRectangle( horizX+10, y-4, 11, 9 ); - dc.SetPen( *wxBLACK_PEN ); - dc.DrawLine( horizX+13, y, horizX+18, y ); - if (item->HasPlus()) - dc.DrawLine( horizX+15, y-2, horizX+15, y+3 ); - } - - if (item->HasHilight()) - { - dc.SetTextForeground( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_HIGHLIGHTTEXT ) ); - dc.SetBrush( *m_hilightBrush ); - long tw, th; - dc.GetTextExtent( item->m_text, &tw, &th ); - if (m_hasFocus) - { - dc.SetPen( *wxBLACK_PEN ); - dc.DrawRectangle( item->m_x-2, item->m_y-2, tw+4, th+4 ); - } - else +wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + + wxFAIL_MSG(wxT("not implemented")); + + return wxTreeItemId(); +} + +// ----------------------------------------------------------------------------- +// operations +// ----------------------------------------------------------------------------- + +wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parentId, + size_t previous, + const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + wxGenericTreeItem *parent = parentId.m_pItem; + if ( !parent ) + { + // should we give a warning here? + return AddRoot(text, image, selImage, data); + } + + wxClientDC dc(this); + wxGenericTreeItem *item = + new wxGenericTreeItem( parent, text, dc, image, selImage, data ); + + if ( data != NULL ) + { + data->m_pItem = item; + } + + parent->Insert( item, previous ); + + m_dirty = TRUE; + + return item; +} + +wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + wxCHECK_MSG( !m_anchor, wxTreeItemId(), wxT("tree can have only one root") ); + + wxClientDC dc(this); + m_anchor = new wxGenericTreeItem((wxGenericTreeItem *)NULL, text, dc, + image, selImage, data); + if ( data != NULL ) + { + data->m_pItem = m_anchor; + } + + if (!HasFlag(wxTR_MULTIPLE)) + { + m_current = m_key_current = m_anchor; + m_current->SetHilight( TRUE ); + } + + Refresh(); + AdjustMyScrollbars(); + + return m_anchor; +} + +wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent, + const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + return DoInsertItem(parent, 0u, text, image, selImage, data); +} + +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parentId, + const wxTreeItemId& idPrevious, + const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + wxGenericTreeItem *parent = parentId.m_pItem; + if ( !parent ) + { + // should we give a warning here? + return AddRoot(text, image, selImage, data); + } + + int index = parent->GetChildren().Index(idPrevious.m_pItem); + wxASSERT_MSG( index != wxNOT_FOUND, + wxT("previous item in wxTreeCtrl::InsertItem() is not a sibling") ); + + return DoInsertItem(parentId, (size_t)++index, text, image, selImage, data); +} + +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parentId, + size_t before, + const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + wxGenericTreeItem *parent = parentId.m_pItem; + if ( !parent ) + { + // should we give a warning here? + return AddRoot(text, image, selImage, data); + } + + return DoInsertItem(parentId, before, text, image, selImage, data); +} + +wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parentId, + const wxString& text, + int image, int selImage, + wxTreeItemData *data) +{ + wxGenericTreeItem *parent = parentId.m_pItem; + if ( !parent ) + { + // should we give a warning here? + return AddRoot(text, image, selImage, data); + } + + return DoInsertItem( parent, parent->GetChildren().Count(), text, + image, selImage, data); +} + +void wxTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item) +{ + wxTreeEvent event( wxEVT_COMMAND_TREE_DELETE_ITEM, GetId() ); + event.m_item = item; + event.SetEventObject( this ); + ProcessEvent( event ); +} + +void wxTreeCtrl::DeleteChildren(const wxTreeItemId& itemId) +{ + wxGenericTreeItem *item = itemId.m_pItem; + item->DeleteChildren(this); + + m_dirty = TRUE; +} + +void wxTreeCtrl::Delete(const wxTreeItemId& itemId) +{ + wxGenericTreeItem *item = itemId.m_pItem; + wxGenericTreeItem *parent = item->GetParent(); + + if ( parent ) + { + parent->GetChildren().Remove( item ); // remove by value + } + + item->DeleteChildren(this); + SendDeleteEvent(item); + delete item; + + m_dirty = TRUE; +} + +void wxTreeCtrl::DeleteAllItems() +{ + if ( m_anchor ) + { + m_anchor->DeleteChildren(this); + delete m_anchor; + + m_anchor = NULL; + + m_dirty = TRUE; + } +} + +void wxTreeCtrl::Expand(const wxTreeItemId& itemId) +{ + wxGenericTreeItem *item = itemId.m_pItem; + + if ( !item->HasPlus() ) + return; + + if ( item->IsExpanded() ) + return; + + wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_EXPANDING, GetId() ); + event.m_item = item; + event.SetEventObject( this ); + +// if ( ProcessEvent( event ) && event.m_code ) TODO: Was this a typo ? + if ( ProcessEvent( event ) && !event.IsAllowed() ) + { + // cancelled by program + return; + } + + item->Expand(); + CalculatePositions(); + + RefreshSubtree(item); + + event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED); + ProcessEvent( event ); +} + +void wxTreeCtrl::Collapse(const wxTreeItemId& itemId) +{ + wxGenericTreeItem *item = itemId.m_pItem; + + if ( !item->IsExpanded() ) + return; + + wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, GetId() ); + event.m_item = item; + event.SetEventObject( this ); + if ( ProcessEvent( event ) && !event.IsAllowed() ) + { + // cancelled by program + return; + } + + item->Collapse(); + + wxArrayGenericTreeItems& children = item->GetChildren(); + size_t count = children.Count(); + for ( size_t n = 0; n < count; n++ ) + { + Collapse(children[n]); + } + + CalculatePositions(); + + RefreshSubtree(item); + + event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED); + ProcessEvent( event ); +} + +void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item) +{ + Collapse(item); + DeleteChildren(item); +} + +void wxTreeCtrl::Toggle(const wxTreeItemId& itemId) +{ + wxGenericTreeItem *item = itemId.m_pItem; + + if (item->IsExpanded()) + Collapse(itemId); + else + Expand(itemId); +} + +void wxTreeCtrl::Unselect() +{ + if (m_current) + { + m_current->SetHilight( FALSE ); + RefreshLine( m_current ); + } +} + +void wxTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item) +{ + if (item->IsSelected()) + { + item->SetHilight(FALSE); + RefreshLine(item); + } + + if (item->HasChildren()) + { + wxArrayGenericTreeItems& children = item->GetChildren(); + size_t count = children.Count(); + for ( size_t n = 0; n < count; ++n ) { - dc.SetPen( *wxTRANSPARENT_PEN ); - dc.DrawRectangle( item->m_x-2, item->m_y-2, tw+4, th+4 ); + UnselectAllChildren(children[n]); } - dc.DrawText( item->m_text, item->m_x, item->m_y ); + } +} - dc.SetPen( *wxBLACK_PEN ); - dc.SetTextForeground( *wxBLACK ); - dc.SetBrush( *wxWHITE_BRUSH ); - } - else - { - dc.SetBrush( *wxWHITE_BRUSH ); - dc.SetPen( *wxTRANSPARENT_PEN ); - long tw, th; - dc.GetTextExtent( item->m_text, &tw, &th ); - dc.DrawRectangle( item->m_x-2, item->m_y-2, tw+4, th+4 ); - dc.DrawText( item->m_text, item->m_x, item->m_y ); - dc.SetPen( *wxBLACK_PEN ); - } - } +void wxTreeCtrl::UnselectAll() +{ + UnselectAllChildren(GetRootItem().m_pItem); +} - if (item->NumberOfVisibleChildren() == 0) return; +// Recursive function ! +// To stop we must have crt_itemGetParent(); - int semiOldY = y; + if (parent == NULL) // This is root item + return TagAllChildrenUntilLast(crt_item, last_item, select); - wxNode *node = item->m_children.First(); - while (node) - { - wxGenericTreeItem *child = (wxGenericTreeItem *)node->Data(); + wxArrayGenericTreeItems& children = parent->GetChildren(); + int index = children.Index(crt_item); + wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent? - y += m_lineHeight; - semiOldY = y; + size_t count = children.Count(); + for (size_t n=(size_t)(index+1); nNext(); - } +bool wxTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select) +{ + crt_item->SetHilight(select); + RefreshLine(crt_item); + + if (crt_item==last_item) + return TRUE; + + if (crt_item->HasChildren()) + { + wxArrayGenericTreeItems& children = crt_item->GetChildren(); + size_t count = children.Count(); + for ( size_t n = 0; n < count; ++n ) + { + if (TagAllChildrenUntilLast(children[n], last_item, select)) + return TRUE; + } + } + + return FALSE; +} - dc.DrawLine( horizX+15, oldY+5, horizX+15, semiOldY ); +void wxTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2) +{ + // item2 is not necessary after item1 + wxGenericTreeItem *first=NULL, *last=NULL; + + // choice first' and 'last' between item1 and item2 + if (item1->GetY()GetY()) + { + first=item1; + last=item2; + } + else + { + first=item2; + last=item1; + } + + bool select = m_current->IsSelected(); + + if ( TagAllChildrenUntilLast(first,last,select) ) + return; + + TagNextChildren(first,last,select); } -void wxTreeCtrl::OnPaint( const wxPaintEvent &WXUNUSED(event) ) +void wxTreeCtrl::SelectItem(const wxTreeItemId& itemId, + bool unselect_others, + bool extended_select) { - if (!m_anchor) return; + wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") ); + + bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE); + wxGenericTreeItem *item = itemId.m_pItem; + + //wxCHECK_RET( ( (!unselect_others) && is_single), + // wxT("this is a single selection tree") ); + + // to keep going anyhow !!! + if (is_single) + { + if (item->IsSelected()) + return; // nothing to do + unselect_others = TRUE; + extended_select = FALSE; + } + else if ( unselect_others && item->IsSelected() ) + { + // selection change if there is more than one item currently selected + wxArrayTreeItemIds selected_items; + if ( GetSelections(selected_items) == 1 ) + return; + } + + wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, GetId() ); + event.m_item = item; + event.m_itemOld = m_current; + event.SetEventObject( this ); + // TODO : Here we don't send any selection mode yet ! + + if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() ) + return; + + // ctrl press + if (unselect_others) + { + if (is_single) Unselect(); // to speed up thing + else UnselectAll(); + } - wxPaintDC dc(this); - PrepareDC( dc ); + // shift press + if (extended_select) + { + if (m_current == NULL) m_current=m_key_current=GetRootItem().m_pItem; + // don't change the mark (m_current) + SelectItemRange(m_current, item); + } + else + { + bool select=TRUE; // the default - dc.SetFont( wxSystemSettings::GetSystemFont( wxSYS_SYSTEM_FONT ) ); + // Check if we need to toggle hilight (ctrl mode) + if (!unselect_others) + select=!item->IsSelected(); - dc.SetPen( m_dottedPen ); - m_lineHeight = (int)(dc.GetCharHeight() + 4); + m_current = m_key_current = item; + m_current->SetHilight(select); + RefreshLine( m_current ); + } - int y = m_lineHeight / 2 + 2; - PaintLevel( m_anchor, dc, 0, y ); + event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); + GetEventHandler()->ProcessEvent( event ); } -void wxTreeCtrl::OnSetFocus( const wxFocusEvent &WXUNUSED(event) ) +void wxTreeCtrl::FillArray(wxGenericTreeItem *item, + wxArrayTreeItemIds &array) const { - m_hasFocus = TRUE; - if (m_current) RefreshLine( m_current ); + if ( item->IsSelected() ) + array.Add(wxTreeItemId(item)); + + if ( item->HasChildren() ) + { + wxArrayGenericTreeItems& children = item->GetChildren(); + size_t count = children.GetCount(); + for ( size_t n = 0; n < count; ++n ) + FillArray(children[n],array); + } } -void wxTreeCtrl::OnKillFocus( const wxFocusEvent &WXUNUSED(event) ) +size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const { - m_hasFocus = FALSE; - if (m_current) RefreshLine( m_current ); + array.Empty(); + FillArray(GetRootItem().m_pItem, array); + + return array.Count(); } -void wxTreeCtrl::OnChar( wxKeyEvent &event ) +void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item) { - event.Skip(); + if (!item.IsOk()) return; + + wxGenericTreeItem *gitem = item.m_pItem; + + // first expand all parent branches + wxGenericTreeItem *parent = gitem->GetParent(); + while ( parent ) + { + Expand(parent); + parent = parent->GetParent(); + } + + //if (parent) CalculatePositions(); + + ScrollTo(item); } -void wxTreeCtrl::OnMouse( const wxMouseEvent &event ) +void wxTreeCtrl::ScrollTo(const wxTreeItemId &item) { - if (!event.LeftDown() && - !event.LeftDClick()) return; + if (!item.IsOk()) return; - wxClientDC dc(this); - PrepareDC(dc); - long x = dc.DeviceToLogicalX( (long)event.GetX() ); - long y = dc.DeviceToLogicalY( (long)event.GetY() ); + // We have to call this here because the label in + // question might just have been added and no screen + // update taken place. + if (m_dirty) wxYield(); - int flag = 0; - long id = HitTest( wxPoint(x,y), flag ); - if (id == -1) - return; - wxGenericTreeItem *item = FindItem( id ); + wxGenericTreeItem *gitem = item.m_pItem; - if (!item) return; - if ((flag != wxTREE_HITTEST_ONITEMBUTTON) && - (flag != wxTREE_HITTEST_ONITEMLABEL)) return; + // now scroll to the item + int item_y = gitem->GetY(); - SelectItem(item); + int start_x = 0; + int start_y = 0; + ViewStart( &start_x, &start_y ); + start_y *= PIXELS_PER_UNIT; - if (event.LeftDClick()) - m_current->SendKeyDown( this ); + int client_h = 0; + int client_w = 0; + GetClientSize( &client_w, &client_h ); - if (flag == wxTREE_HITTEST_ONITEMBUTTON) - { - ExpandItem( item->m_itemId, wxTREE_EXPAND_TOGGLE ); - return; - } + if (item_y < start_y+3) + { + // going down + int x = 0; + int y = 0; + m_anchor->GetSize( x, y, this ); + y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + int x_pos = GetScrollPos( wxHORIZONTAL ); + // Item should appear at top + SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, item_y/PIXELS_PER_UNIT ); + } + else if (item_y+GetLineHeight(gitem) > start_y+client_h) + { + // going up + int x = 0; + int y = 0; + m_anchor->GetSize( x, y, this ); + y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + item_y += PIXELS_PER_UNIT+2; + int x_pos = GetScrollPos( wxHORIZONTAL ); + // Item should appear at bottom + SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, (item_y+GetLineHeight(gitem)-client_h)/PIXELS_PER_UNIT ); + } +} + +// FIXME: tree sorting functions are not reentrant and not MT-safe! +static wxTreeCtrl *s_treeBeingSorted = NULL; + +static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1, + wxGenericTreeItem **item2) +{ + wxCHECK_MSG( s_treeBeingSorted, 0, wxT("bug in wxTreeCtrl::SortChildren()") ); + + return s_treeBeingSorted->OnCompareItems(*item1, *item2); } -void wxTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxPaintDC &dc, int level, int &y ) +int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1, + const wxTreeItemId& item2) { - int horizX = level*m_indent; + return wxStrcmp(GetItemText(item1), GetItemText(item2)); +} - item->m_x = horizX+33; - item->m_y = y-m_lineHeight/3-2; - item->m_height = m_lineHeight; +void wxTreeCtrl::SortChildren(const wxTreeItemId& itemId) +{ + wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") ); - if (item->NumberOfVisibleChildren() == 0) return; + wxGenericTreeItem *item = itemId.m_pItem; - wxNode *node = item->m_children.First(); - while (node) - { - wxGenericTreeItem *child = (wxGenericTreeItem *)node->Data(); + wxCHECK_RET( !s_treeBeingSorted, + wxT("wxTreeCtrl::SortChildren is not reentrant") ); - y += m_lineHeight; - CalculateLevel( child, dc, level+1, y ); + wxArrayGenericTreeItems& children = item->GetChildren(); + if ( children.Count() > 1 ) + { + s_treeBeingSorted = this; + children.Sort(tree_ctrl_compare_func); + s_treeBeingSorted = NULL; - node = node->Next(); - } + m_dirty = TRUE; + } + //else: don't make the tree dirty as nothing changed } -void wxTreeCtrl::CalculatePositions() +wxImageList *wxTreeCtrl::GetImageList() const { - if (!m_anchor) - return; + return m_imageListNormal; +} + +wxImageList *wxTreeCtrl::GetStateImageList() const +{ + return m_imageListState; +} - wxClientDC dc(this); - PrepareDC( dc ); +void wxTreeCtrl::SetImageList(wxImageList *imageList) +{ + m_imageListNormal = imageList; + + if ( !m_imageListNormal ) + return; - dc.SetFont( wxSystemSettings::GetSystemFont( wxSYS_SYSTEM_FONT ) ); + // Calculate a m_lineHeight value from the image sizes. + // May be toggle off. Then wxTreeCtrl will spread when + // necessary (which might look ugly). + wxClientDC dc(this); + m_lineHeight = (int)(dc.GetCharHeight() + 4); + int width = 0, height = 0, + n = m_imageListNormal->GetImageCount(); + + for (int i = 0; i < n ; i++) + { + m_imageListNormal->GetSize(i, width, height); + if (height > m_lineHeight) m_lineHeight = height; + } - dc.SetPen( m_dottedPen ); - m_lineHeight = (int)(dc.GetCharHeight() + 4); + if (m_lineHeight < 40) + m_lineHeight += 2; // at least 2 pixels + else + m_lineHeight += m_lineHeight/10; // otherwise 10% extra spacing +} - int y = m_lineHeight / 2 + 2; - CalculateLevel( m_anchor, dc, 0, y ); +void wxTreeCtrl::SetStateImageList(wxImageList *imageList) +{ + m_imageListState = imageList; } -wxGenericTreeItem *wxTreeCtrl::FindItem( long itemId ) const +// ----------------------------------------------------------------------------- +// helpers +// ----------------------------------------------------------------------------- + +void wxTreeCtrl::AdjustMyScrollbars() { - if (!m_anchor) return (wxGenericTreeItem *) NULL; - return m_anchor->FindItem( itemId ); + if (m_anchor) + { + int x = 0; + int y = 0; + m_anchor->GetSize( x, y, this ); + y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels + int x_pos = GetScrollPos( wxHORIZONTAL ); + int y_pos = GetScrollPos( wxVERTICAL ); + SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, y_pos ); + } + else + { + SetScrollbars( 0, 0, 0, 0 ); + } } -void wxTreeCtrl::RefreshLine( wxGenericTreeItem *item ) +int wxTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const { - if (!item) return; - wxClientDC dc(this); - PrepareDC( dc ); - wxRect rect; - rect.x = dc.LogicalToDeviceX( item->m_x-2 ); - rect.y = dc.LogicalToDeviceY( item->m_y-2 ); - rect.width = 1000; - rect.height = dc.GetCharHeight()+6; - Refresh( TRUE, &rect ); + if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT) + return item->GetHeight(); + else + return m_lineHeight; } +void wxTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc) +{ + wxTreeItemAttr *attr = item->GetAttributes(); + if ( attr && attr->HasFont() ) + dc.SetFont(attr->GetFont()); + else if (item->IsBold()) + dc.SetFont(m_boldFont); + + long text_w = 0; + long text_h = 0; + dc.GetTextExtent( item->GetText(), &text_w, &text_h ); + int image_h = 0; + int image_w = 0; + int image = item->GetCurrentImage(); + if ( image != NO_IMAGE ) + { + if ( m_imageListNormal ) + { + m_imageListNormal->GetSize( image, image_w, image_h ); + image_w += 4; + } + else + { + image = NO_IMAGE; + } + } + + int total_h = GetLineHeight(item); + + if (item->IsSelected()) + dc.SetBrush(*m_hilightBrush); + else + { + wxColour colBg; + if ( attr && attr->HasBackgroundColour() ) + colBg = attr->GetBackgroundColour(); + else + colBg = m_backgroundColour; + dc.SetBrush(wxBrush(colBg, wxSOLID)); + } + + dc.DrawRectangle( item->GetX()-2, item->GetY(), item->GetWidth()+2, total_h ); + + if ( image != NO_IMAGE ) + { + dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, total_h ); + m_imageListNormal->Draw( image, dc, + item->GetX(), + item->GetY() +((total_h > image_h)?((total_h-image_h)/2):0), + wxIMAGELIST_DRAW_TRANSPARENT ); + dc.DestroyClippingRegion(); + } + + dc.SetBackgroundMode(wxTRANSPARENT); + dc.DrawText( item->GetText(), image_w + item->GetX(), (wxCoord)item->GetY() + + ((total_h > text_h) ? (total_h - text_h)/2 : 0)); + + // restore normal font + dc.SetFont( m_normalFont ); +} + +// Now y stands for the top of the item, whereas it used to stand for middle ! +void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y ) +{ + int horizX = level*m_indent; + + item->SetX( horizX+m_indent+m_spacing ); + item->SetY( y ); + + int oldY = y; + y+=GetLineHeight(item)/2; + + item->SetCross( horizX+m_indent, y ); + + int exposed_x = dc.LogicalToDeviceX( 0 ); + int exposed_y = dc.LogicalToDeviceY( item->GetY() ); + + if (IsExposed( exposed_x, exposed_y, 10000, GetLineHeight(item) )) // 10000 = very much + { + int startX = horizX; + int endX = horizX + (m_indent-5); + +// if (!item->HasChildren()) endX += (m_indent+5); + if (!item->HasChildren()) endX += 20; + + dc.DrawLine( startX, y, endX, y ); + + if (item->HasPlus()) + { + dc.DrawLine( horizX+(m_indent+5), y, horizX+(m_indent+15), y ); + dc.SetPen( *wxGREY_PEN ); + dc.SetBrush( *wxWHITE_BRUSH ); + dc.DrawRectangle( horizX+(m_indent-5), y-4, 11, 9 ); + + dc.SetPen( *wxBLACK_PEN ); + dc.DrawLine( horizX+(m_indent-2), y, horizX+(m_indent+3), y ); + if (!item->IsExpanded()) + dc.DrawLine( horizX+m_indent, y-2, horizX+m_indent, y+3 ); + + dc.SetPen( m_dottedPen ); + } + + wxPen *pen = wxTRANSPARENT_PEN; + wxColour colText; + + if ( item->IsSelected() ) + { + colText = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_HIGHLIGHTTEXT ); + + if ( m_hasFocus ) + pen = wxBLACK_PEN; + + } + else + { + wxTreeItemAttr *attr = item->GetAttributes(); + if ( attr && attr->HasTextColour() ) + colText = attr->GetTextColour(); + else + colText = *wxBLACK; + } + + // prepare to draw + dc.SetTextForeground(colText); + dc.SetPen(*pen); + + // draw + PaintItem(item, dc); + + // restore DC objects + dc.SetBrush( *wxWHITE_BRUSH ); + dc.SetPen( m_dottedPen ); + dc.SetTextForeground( *wxBLACK ); + } + + y = oldY+GetLineHeight(item); + + if (item->IsExpanded()) + { + oldY+=GetLineHeight(item)/2; + int semiOldY=0; + + wxArrayGenericTreeItems& children = item->GetChildren(); + size_t n, count = children.Count(); + for ( n = 0; n < count; ++n ) + { + semiOldY=y; + PaintLevel( children[n], dc, level+1, y ); + } + + // it may happen that the item is expanded but has no items (when you + // delete all its children for example) - don't draw the vertical line + // in this case + if (count > 0) + { + semiOldY+=GetLineHeight(children[--n])/2; + dc.DrawLine( horizX+m_indent, oldY+5, horizX+m_indent, semiOldY ); + } + } +} + +void wxTreeCtrl::DrawDropEffect(wxGenericTreeItem *item) +{ + if ( item ) + { + if ( item->HasPlus() ) + { + // it's a folder, indicate it by a border + DrawBorder(item); + } + else + { + // draw a line under the drop target because the item will be + // dropped there + DrawLine(item, TRUE /* below */); + } + + SetCursor(wxCURSOR_BULLSEYE); + } + else + { + // can't drop here + SetCursor(wxCURSOR_NO_ENTRY); + } +} + +void wxTreeCtrl::DrawBorder(const wxTreeItemId &item) +{ + wxCHECK_RET( item.IsOk(), _T("invalid item in wxTreeCtrl::DrawLine") ); + + wxGenericTreeItem *i = item.m_pItem; + + wxClientDC dc(this); + PrepareDC( dc ); + dc.SetLogicalFunction(wxINVERT); + dc.SetBrush(*wxTRANSPARENT_BRUSH); + + int w = i->GetWidth() + 2; + int h = GetLineHeight(i) + 2; + + dc.DrawRectangle( i->GetX() - 1, i->GetY() - 1, w, h); +} + +void wxTreeCtrl::DrawLine(const wxTreeItemId &item, bool below) +{ + wxCHECK_RET( item.IsOk(), _T("invalid item in wxTreeCtrl::DrawLine") ); + + wxGenericTreeItem *i = item.m_pItem; + + wxClientDC dc(this); + PrepareDC( dc ); + dc.SetLogicalFunction(wxINVERT); + + int x = i->GetX(), + y = i->GetY(); + if ( below ) + { + y += GetLineHeight(i) - 1; + } + + dc.DrawLine( x, y, x + i->GetWidth(), y); +} + +// ----------------------------------------------------------------------------- +// wxWindows callbacks +// ----------------------------------------------------------------------------- + +void wxTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) ) +{ + if ( !m_anchor) + return; + + wxPaintDC dc(this); + PrepareDC( dc ); + + dc.SetFont( m_normalFont ); + dc.SetPen( m_dottedPen ); + + // this is now done dynamically + //if(GetImageList() == NULL) + // m_lineHeight = (int)(dc.GetCharHeight() + 4); + + int y = 2; + PaintLevel( m_anchor, dc, 0, y ); +} + +void wxTreeCtrl::OnSetFocus( wxFocusEvent &WXUNUSED(event) ) +{ + m_hasFocus = TRUE; + + if (m_current) RefreshLine( m_current ); +} + +void wxTreeCtrl::OnKillFocus( wxFocusEvent &WXUNUSED(event) ) +{ + m_hasFocus = FALSE; + + if (m_current) RefreshLine( m_current ); +} + +void wxTreeCtrl::OnChar( wxKeyEvent &event ) +{ + wxTreeEvent te( wxEVT_COMMAND_TREE_KEY_DOWN, GetId() ); + te.m_code = (int)event.KeyCode(); + te.SetEventObject( this ); + GetEventHandler()->ProcessEvent( te ); + + if ( (m_current == 0) || (m_key_current == 0) ) + { + event.Skip(); + return; + } + + // how should the selection work for this event? + bool is_multiple, extended_select, unselect_others; + EventFlagsToSelType(GetWindowStyleFlag(), + event.ShiftDown(), + event.ControlDown(), + is_multiple, extended_select, unselect_others); + + // + : Expand + // - : Collaspe + // * : Toggle Expand/Collapse + // ' ' | return : activate + // up : go up (not last children!) + // down : go down + // left : go to parent + // right : open if parent and go next + // home : go to root + // end : go to last item without opening parents + switch (event.KeyCode()) + { + case '+': + case WXK_ADD: + if (m_current->HasPlus() && !IsExpanded(m_current)) + { + Expand(m_current); + } + break; + + case '-': + case WXK_SUBTRACT: + if (IsExpanded(m_current)) + { + Collapse(m_current); + } + break; + + case '*': + case WXK_MULTIPLY: + Toggle(m_current); + break; + + case ' ': + case WXK_RETURN: + { + wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() ); + event.m_item = m_current; + event.m_code = 0; + event.SetEventObject( this ); + GetEventHandler()->ProcessEvent( event ); + } + break; + + // up goes to the previous sibling or to the last of its children if + // it's expanded + case WXK_UP: + { + wxTreeItemId prev = GetPrevSibling( m_key_current ); + if (!prev) + { + prev = GetParent( m_key_current ); + if (prev) + { + long cockie = 0; + wxTreeItemId current = m_key_current; + if (current == GetFirstChild( prev, cockie )) + { + // otherwise we return to where we came from + SelectItem( prev, unselect_others, extended_select ); + m_key_current=prev.m_pItem; + EnsureVisible( prev ); + break; + } + } + } + if (prev) + { + while ( IsExpanded(prev) && HasChildren(prev) ) + { + wxTreeItemId child = GetLastChild(prev); + if ( child ) + { + prev = child; + } + } + + SelectItem( prev, unselect_others, extended_select ); + m_key_current=prev.m_pItem; + EnsureVisible( prev ); + } + } + break; + + // left arrow goes to the parent + case WXK_LEFT: + { + wxTreeItemId prev = GetParent( m_current ); + if (prev) + { + EnsureVisible( prev ); + SelectItem( prev, unselect_others, extended_select ); + } + } + break; + + case WXK_RIGHT: + // this works the same as the down arrow except that we also expand the + // item if it wasn't expanded yet + Expand(m_current); + // fall through + + case WXK_DOWN: + { + if (IsExpanded(m_key_current) && HasChildren(m_key_current)) + { + long cookie = 0; + wxTreeItemId child = GetFirstChild( m_key_current, cookie ); + SelectItem( child, unselect_others, extended_select ); + m_key_current=child.m_pItem; + EnsureVisible( child ); + } + else + { + wxTreeItemId next = GetNextSibling( m_key_current ); +// if (next == 0) + if (!next) + { + wxTreeItemId current = m_key_current; + while (current && !next) + { + current = GetParent( current ); + if (current) next = GetNextSibling( current ); + } + } +// if (next != 0) + if (next) + { + SelectItem( next, unselect_others, extended_select ); + m_key_current=next.m_pItem; + EnsureVisible( next ); + } + } + } + break; + + // selects the last visible tree item + case WXK_END: + { + wxTreeItemId last = GetRootItem(); + + while ( last.IsOk() && IsExpanded(last) ) + { + wxTreeItemId lastChild = GetLastChild(last); + + // it may happen if the item was expanded but then all of + // its children have been deleted - so IsExpanded() returned + // TRUE, but GetLastChild() returned invalid item + if ( !lastChild ) + break; + + last = lastChild; + } + + if ( last.IsOk() ) + { + EnsureVisible( last ); + SelectItem( last, unselect_others, extended_select ); + } + } + break; + + // selects the root item + case WXK_HOME: + { + wxTreeItemId prev = GetRootItem(); + if (prev) + { + EnsureVisible( prev ); + SelectItem( prev, unselect_others, extended_select ); + } + } + break; + + default: + event.Skip(); + } +} + +wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags) +{ + // We have to call this here because the label in + // question might just have been added and no screen + // update taken place. + if (m_dirty) wxYield(); + + wxClientDC dc(this); + PrepareDC(dc); + wxCoord x = dc.DeviceToLogicalX( point.x ); + wxCoord y = dc.DeviceToLogicalY( point.y ); + int w, h; + GetSize(&w, &h); + + flags=0; + if (point.x<0) flags|=wxTREE_HITTEST_TOLEFT; + if (point.x>w) flags|=wxTREE_HITTEST_TORIGHT; + if (point.y<0) flags|=wxTREE_HITTEST_ABOVE; + if (point.y>h) flags|=wxTREE_HITTEST_BELOW; + + return m_anchor->HitTest( wxPoint(x, y), this, flags); +} + +/* **** */ + +void wxTreeCtrl::Edit( const wxTreeItemId& item ) +{ + if (!item.IsOk()) return; + + m_currentEdit = item.m_pItem; + + wxTreeEvent te( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, GetId() ); + te.m_item = m_currentEdit; + te.SetEventObject( this ); + GetEventHandler()->ProcessEvent( te ); + + if (!te.IsAllowed()) return; + + // We have to call this here because the label in + // question might just have been added and no screen + // update taken place. + if (m_dirty) wxYield(); + + wxString s = m_currentEdit->GetText(); + int x = m_currentEdit->GetX(); + int y = m_currentEdit->GetY(); + int w = m_currentEdit->GetWidth(); + int h = m_currentEdit->GetHeight(); + + int image_h = 0; + int image_w = 0; + + int image = m_currentEdit->GetCurrentImage(); + if ( image != NO_IMAGE ) + { + if ( m_imageListNormal ) + { + m_imageListNormal->GetSize( image, image_w, image_h ); + image_w += 4; + } + else + { + wxFAIL_MSG(_T("you must create an image list to use images!")); + } + } + x += image_w; + w -= image_w + 4; // I don't know why +4 is needed + + wxClientDC dc(this); + PrepareDC( dc ); + x = dc.LogicalToDeviceX( x ); + y = dc.LogicalToDeviceY( y ); + + wxTreeTextCtrl *text = new wxTreeTextCtrl( + this, -1, &m_renameAccept, &m_renameRes, this, s, wxPoint(x-4,y-4), wxSize(w+11,h+8) ); + text->SetFocus(); +} + +void wxTreeCtrl::OnRenameTimer() +{ + Edit( m_current ); +} + +void wxTreeCtrl::OnRenameAccept() +{ + wxTreeEvent le( wxEVT_COMMAND_TREE_END_LABEL_EDIT, GetId() ); + le.m_item = m_currentEdit; + le.SetEventObject( this ); + le.m_label = m_renameRes; + GetEventHandler()->ProcessEvent( le ); + + if (!le.IsAllowed()) return; + + SetItemText( m_currentEdit, m_renameRes ); +} + +void wxTreeCtrl::OnMouse( wxMouseEvent &event ) +{ + if ( !m_anchor ) return; + + // we process left mouse up event (enables in-place edit), right down + // (pass to the user code), left dbl click (activate item) and + // dragging/moving events for items drag-and-drop + if ( !(event.LeftUp() || + event.RightDown() || + event.LeftDClick() || + event.Dragging() || + ((event.Moving() || event.RightUp()) && m_isDragging)) ) + { + event.Skip(); + + return; + } + + wxClientDC dc(this); + PrepareDC(dc); + wxCoord x = dc.DeviceToLogicalX( event.GetX() ); + wxCoord y = dc.DeviceToLogicalY( event.GetY() ); + + int flags = 0; + wxGenericTreeItem *item = m_anchor->HitTest( wxPoint(x,y), this, flags); + + bool onButton = flags & wxTREE_HITTEST_ONITEMBUTTON; + + if ( event.Dragging() && !m_isDragging ) + { + if (m_dragCount == 0) + m_dragStart = wxPoint(x,y); + + m_dragCount++; + + if (m_dragCount != 3) + { + // wait until user drags a bit further... + return; + } + + wxEventType command = event.RightIsDown() + ? wxEVT_COMMAND_TREE_BEGIN_RDRAG + : wxEVT_COMMAND_TREE_BEGIN_DRAG; + + wxTreeEvent nevent( command, GetId() ); + nevent.m_item = m_current; + nevent.SetEventObject(this); + + // by default the dragging is not supported, the user code must + // explicitly allow the event for it to take place + nevent.Veto(); + + if ( GetEventHandler()->ProcessEvent(nevent) && nevent.IsAllowed() ) + { + // we're going to drag this item + m_isDragging = TRUE; + + // remember the old cursor because we will change it while + // dragging + m_oldCursor = m_cursor; + + // in a single selection control, hide the selection temporarily + if ( !(GetWindowStyleFlag() & wxTR_MULTIPLE) ) + { + m_oldSelection = GetSelection().m_pItem; + + if ( m_oldSelection ) + { + m_oldSelection->SetHilight(FALSE); + RefreshLine(m_oldSelection); + } + } + + CaptureMouse(); + } + } + else if ( event.Moving() ) + { + if ( item != m_dropTarget ) + { + // unhighlight the previous drop target + DrawDropEffect(m_dropTarget); + + m_dropTarget = item; + + // highlight the current drop target if any + DrawDropEffect(m_dropTarget); + + wxYield(); + } + } + else if ( (event.LeftUp() || event.RightUp()) && m_isDragging ) + { + // erase the highlighting + DrawDropEffect(m_dropTarget); + + // generate the drag end event + wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, GetId()); + + event.m_item = item; + event.m_pointDrag = wxPoint(x, y); + event.SetEventObject(this); + + (void)GetEventHandler()->ProcessEvent(event); + + m_isDragging = FALSE; + m_dropTarget = (wxGenericTreeItem *)NULL; + + if ( m_oldSelection ) + { + m_oldSelection->SetHilight(TRUE); + RefreshLine(m_oldSelection); + m_oldSelection = (wxGenericTreeItem *)NULL; + } + + ReleaseMouse(); + + SetCursor(m_oldCursor); + + wxYield(); + } + else + { + // here we process only the messages which happen on tree items + + m_dragCount = 0; + + if (item == NULL) return; /* we hit the blank area */ + + if ( event.RightDown() ) + { + wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, GetId()); + nevent.m_item = item; + nevent.m_code = 0; + nevent.SetEventObject(this); + GetEventHandler()->ProcessEvent(nevent); + } + else if ( event.LeftUp() && (item == m_current) && + (flags & wxTREE_HITTEST_ONITEMLABEL) && + HasFlag(wxTR_EDIT_LABELS) ) + { + m_renameTimer->Start( 100, TRUE ); + } + else + { + // how should the selection work for this event? + bool is_multiple, extended_select, unselect_others; + EventFlagsToSelType(GetWindowStyleFlag(), + event.ShiftDown(), + event.ControlDown(), + is_multiple, extended_select, unselect_others); + + if ( onButton ) + { + Toggle( item ); + if ( is_multiple ) + return; + } + + SelectItem(item, unselect_others, extended_select); + + if ( event.LeftDClick() ) + { + wxTreeEvent nevent( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() ); + nevent.m_item = item; + nevent.m_code = 0; + nevent.SetEventObject( this ); + GetEventHandler()->ProcessEvent( nevent ); + } + } + } +} + +void wxTreeCtrl::OnIdle( wxIdleEvent &WXUNUSED(event) ) +{ + /* after all changes have been done to the tree control, + * we actually redraw the tree when everything is over */ + + if (!m_dirty) + return; + + m_dirty = FALSE; + + CalculatePositions(); + Refresh(); + AdjustMyScrollbars(); +} + +void wxTreeCtrl::CalculateSize( wxGenericTreeItem *item, wxDC &dc ) +{ + wxCoord text_w = 0; + wxCoord text_h = 0; + + if (item->IsBold()) + dc.SetFont(m_boldFont); + + dc.GetTextExtent( item->GetText(), &text_w, &text_h ); + text_h+=2; + + // restore normal font + dc.SetFont( m_normalFont ); + + int image_h = 0; + int image_w = 0; + int image = item->GetCurrentImage(); + if ( image != NO_IMAGE ) + { + if ( m_imageListNormal ) + { + m_imageListNormal->GetSize( image, image_w, image_h ); + image_w += 4; + } + } + + int total_h = (image_h > text_h) ? image_h : text_h; + + if (total_h < 40) + total_h += 2; // at least 2 pixels + else + total_h += total_h/10; // otherwise 10% extra spacing + + item->SetHeight(total_h); + if (total_h>m_lineHeight) + m_lineHeight=total_h; + + item->SetWidth(image_w+text_w+2); +} + +// ----------------------------------------------------------------------------- +// for developper : y is now the top of the level +// not the middle of it ! +void wxTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y ) +{ + int horizX = level*m_indent; + + CalculateSize( item, dc ); + + // set its position + item->SetX( horizX+m_indent+m_spacing ); + item->SetY( y ); + y+=GetLineHeight(item); + + if ( !item->IsExpanded() ) + { + // we dont need to calculate collapsed branches + return; + } + + wxArrayGenericTreeItems& children = item->GetChildren(); + size_t n, count = children.Count(); + for (n = 0; n < count; ++n ) + CalculateLevel( children[n], dc, level+1, y ); // recurse +} + +void wxTreeCtrl::CalculatePositions() +{ + if ( !m_anchor ) return; + + wxClientDC dc(this); + PrepareDC( dc ); + + dc.SetFont( m_normalFont ); + + dc.SetPen( m_dottedPen ); + //if(GetImageList() == NULL) + // m_lineHeight = (int)(dc.GetCharHeight() + 4); + + int y = 2; + CalculateLevel( m_anchor, dc, 0, y ); // start recursion +} + +void wxTreeCtrl::RefreshSubtree(wxGenericTreeItem *item) +{ + if (m_dirty) return; + + wxClientDC dc(this); + PrepareDC(dc); + + int cw = 0; + int ch = 0; + GetClientSize( &cw, &ch ); + + wxRect rect; + rect.x = dc.LogicalToDeviceX( 0 ); + rect.width = cw; + rect.y = dc.LogicalToDeviceY( item->GetY() ); + rect.height = ch; + + Refresh( TRUE, &rect ); + + AdjustMyScrollbars(); +} + +void wxTreeCtrl::RefreshLine( wxGenericTreeItem *item ) +{ + if (m_dirty) return; + + wxClientDC dc(this); + PrepareDC( dc ); + + int cw = 0; + int ch = 0; + GetClientSize( &cw, &ch ); + + wxRect rect; + rect.x = dc.LogicalToDeviceX( 0 ); + rect.y = dc.LogicalToDeviceY( item->GetY() ); + rect.width = cw; + rect.height = GetLineHeight(item); //dc.GetCharHeight() + 6; + + Refresh( TRUE, &rect ); +}