-/*
- * File: TreeCtrl.cpp
- * Purpose: Tree control
- * Author: Julian Smart
- * Created: 1997
- * Updated:
- * Copyright:
- */
-
-/* static const char sccsid[] = "%W% %G%"; */
-
-#ifdef __GNUG__
-#pragma implementation "treectrl.h"
+/////////////////////////////////////////////////////////////////////////////
+// Name: src/msw/treectrl.cpp
+// Purpose: wxTreeCtrl
+// Author: Julian Smart
+// Modified by: Vadim Zeitlin to be less MSW-specific on 10.10.98
+// Created: 1997
+// RCS-ID: $Id$
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
+ #pragma implementation "treectrl.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WX_PRECOMP
-#include "wx.h"
-#endif
+#if wxUSE_TREECTRL
+
+#include "wx/msw/private.h"
+// Set this to 1 to be _absolutely_ sure that repainting will work for all
+// comctl32.dll versions
+#define wxUSE_COMCTL32_SAFELY 0
+
+#include "wx/app.h"
#include "wx/log.h"
+#include "wx/dynarray.h"
+#include "wx/imaglist.h"
+#include "wx/settings.h"
+#include "wx/msw/treectrl.h"
+#include "wx/msw/dragimag.h"
+
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
+
+// macros to hide the cast ugliness
+// --------------------------------
+
+// ptr is the real item id, i.e. wxTreeItemId::m_pItem
+#define HITEM_PTR(ptr) (HTREEITEM)(ptr)
+
+// item here is a wxTreeItemId
+#define HITEM(item) HITEM_PTR((item).m_pItem)
+
+// the native control doesn't support multiple selections under MSW and we
+// have 2 ways to emulate them: either using TVS_CHECKBOXES style and let
+// checkboxes be the selection status (checked == selected) or by really
+// emulating everything, i.e. intercepting mouse and key events &c. The first
+// approach is much easier but doesn't work with comctl32.dll < 4.71 and also
+// looks quite ugly.
+#define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+// wrapper for TreeView_HitTest
+static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y)
+{
+ TV_HITTESTINFO tvht;
+ tvht.pt.x = x;
+ tvht.pt.y = y;
-#if defined(__WIN95__)
+ return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht);
+}
-#include "wx/treectrl.h"
-#include "wx/msw/private.h"
+#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-#ifndef __GNUWIN32__
-#include <commctrl.h>
-#endif
+// wrappers for TreeView_GetItem/TreeView_SetItem
+static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
+{
+
+ TV_ITEM tvi;
+ tvi.mask = TVIF_STATE | TVIF_HANDLE;
+ tvi.stateMask = TVIS_SELECTED;
+ tvi.hItem = hItem;
+
+ if ( !TreeView_GetItem(hwndTV, &tvi) )
+ {
+ wxLogLastError(wxT("TreeView_GetItem"));
+ }
+
+ return (tvi.state & TVIS_SELECTED) != 0;
+}
+
+static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)
+{
+ TV_ITEM tvi;
+ tvi.mask = TVIF_STATE | TVIF_HANDLE;
+ tvi.stateMask = TVIS_SELECTED;
+ tvi.state = select ? TVIS_SELECTED : 0;
+ tvi.hItem = hItem;
+
+ if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
+ {
+ wxLogLastError(wxT("TreeView_SetItem"));
+ }
+}
+
+static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)
+{
+ SelectItem(hwndTV, htItem, false);
+}
+
+static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem)
+{
+ SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem));
+}
+
+// helper function which selects all items in a range and, optionally,
+// unselects all others
+static void SelectRange(HWND hwndTV,
+ HTREEITEM htFirst,
+ HTREEITEM htLast,
+ bool unselectOthers = true)
+{
+ // find the first (or last) item and select it
+ bool cont = true;
+ HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
+ while ( htItem && cont )
+ {
+ if ( (htItem == htFirst) || (htItem == htLast) )
+ {
+ if ( !IsItemSelected(hwndTV, htItem) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ cont = false;
+ }
+ else
+ {
+ if ( unselectOthers && IsItemSelected(hwndTV, htItem) )
+ {
+ UnselectItem(hwndTV, htItem);
+ }
+ }
+
+ htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
+ }
-// Bug in headers, sometimes
-#ifndef TVIS_FOCUSED
-#define TVIS_FOCUSED 0x0001
+ // select the items in range
+ cont = htFirst != htLast;
+ while ( htItem && cont )
+ {
+ if ( !IsItemSelected(hwndTV, htItem) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ cont = (htItem != htFirst) && (htItem != htLast);
+
+ htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
+ }
+
+ // unselect the rest
+ if ( unselectOthers )
+ {
+ while ( htItem )
+ {
+ if ( IsItemSelected(hwndTV, htItem) )
+ {
+ UnselectItem(hwndTV, htItem);
+ }
+
+ htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
+ }
+ }
+
+ // seems to be necessary - otherwise the just selected items don't always
+ // appear as selected
+ UpdateWindow(hwndTV);
+}
+
+// helper function which tricks the standard control into changing the focused
+// item without changing anything else (if someone knows why Microsoft doesn't
+// allow to do it by just setting TVIS_FOCUSED flag, please tell me!)
+static void SetFocus(HWND hwndTV, HTREEITEM htItem)
+{
+ // the current focus
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV);
+
+ if ( htItem )
+ {
+ // set the focus
+ if ( htItem != htFocus )
+ {
+ // remember the selection state of the item
+ bool wasSelected = IsItemSelected(hwndTV, htItem);
+
+ if ( htFocus && IsItemSelected(hwndTV, htFocus) )
+ {
+ // prevent the tree from unselecting the old focus which it
+ // would do by default (TreeView_SelectItem unselects the
+ // focused item)
+ TreeView_SelectItem(hwndTV, 0);
+ SelectItem(hwndTV, htFocus);
+ }
+
+ TreeView_SelectItem(hwndTV, htItem);
+
+ if ( !wasSelected )
+ {
+ // need to clear the selection which TreeView_SelectItem() gave
+ // us
+ UnselectItem(hwndTV, htItem);
+ }
+ //else: was selected, still selected - ok
+ }
+ //else: nothing to do, focus already there
+ }
+ else
+ {
+ if ( htFocus )
+ {
+ bool wasFocusSelected = IsItemSelected(hwndTV, htFocus);
+
+ // just clear the focus
+ TreeView_SelectItem(hwndTV, 0);
+
+ if ( wasFocusSelected )
+ {
+ // restore the selection state
+ SelectItem(hwndTV, htFocus);
+ }
+ }
+ //else: nothing to do, no focus already
+ }
+}
+
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+
+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+
+// a convenient wrapper around TV_ITEM struct which adds a ctor
+#ifdef __VISUALC__
+#pragma warning( disable : 4097 ) // inheriting from typedef
#endif
-static void wxConvertToMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem);
-static void wxConvertFromMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem, HWND getFullInfo = 0);
+struct wxTreeViewItem : public TV_ITEM
+{
+ wxTreeViewItem(const wxTreeItemId& item, // the item handle
+ UINT mask_, // fields which are valid
+ UINT stateMask_ = 0) // for TVIF_STATE only
+ {
+ wxZeroMemory(*this);
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
-IMPLEMENT_DYNAMIC_CLASS(wxTreeItem, wxObject)
+ // hItem member is always valid
+ mask = mask_ | TVIF_HANDLE;
+ stateMask = stateMask_;
+ hItem = HITEM(item);
+ }
+};
+
+// wxVirutalNode is used in place of a single root when 'hidden' root is
+// specified.
+class wxVirtualNode : public wxTreeViewItem
+{
+public:
+ wxVirtualNode(wxTreeItemData *data)
+ : wxTreeViewItem(TVI_ROOT, 0)
+ {
+ m_data = data;
+ }
+
+ ~wxVirtualNode()
+ {
+ delete m_data;
+ }
+ wxTreeItemData *GetData() const { return m_data; }
+ void SetData(wxTreeItemData *data) { delete m_data; m_data = data; }
+
+private:
+ wxTreeItemData *m_data;
+
+ DECLARE_NO_COPY_CLASS(wxVirtualNode)
+};
+
+#ifdef __VISUALC__
+#pragma warning( default : 4097 )
#endif
-wxTreeCtrl::wxTreeCtrl(void)
+// a macro to get the virtual root, returns NULL if none
+#define GET_VIRTUAL_ROOT() ((wxVirtualNode *)m_pVirtualRoot)
+
+// returns true if the item is the virtual root
+#define IS_VIRTUAL_ROOT(item) (HITEM(item) == TVI_ROOT)
+
+// a class which encapsulates the tree traversal logic: it vists all (unless
+// OnVisit() returns false) items under the given one
+class wxTreeTraversal
{
- m_imageListNormal = NULL;
- m_imageListState = NULL;
-}
+public:
+ wxTreeTraversal(const wxTreeCtrl *tree)
+ {
+ m_tree = tree;
+ }
-bool wxTreeCtrl::Create(wxWindow *parent, const wxWindowID id, const wxPoint& pos, const wxSize& size,
- const long style, const wxValidator& validator, const wxString& name)
+ // do traverse the tree: visit all items (recursively by default) under the
+ // given one; return true if all items were traversed or false if the
+ // traversal was aborted because OnVisit returned false
+ bool DoTraverse(const wxTreeItemId& root, bool recursively = true);
+
+ // override this function to do whatever is needed for each item, return
+ // false to stop traversing
+ virtual bool OnVisit(const wxTreeItemId& item) = 0;
+
+protected:
+ const wxTreeCtrl *GetTree() const { return m_tree; }
+
+private:
+ bool Traverse(const wxTreeItemId& root, bool recursively);
+
+ const wxTreeCtrl *m_tree;
+
+ DECLARE_NO_COPY_CLASS(wxTreeTraversal)
+};
+
+// internal class for getting the selected items
+class TraverseSelections : public wxTreeTraversal
{
- wxSystemSettings settings;
- SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(parent->GetDefaultForegroundColour());
+public:
+ TraverseSelections(const wxTreeCtrl *tree,
+ wxArrayTreeItemIds& selections)
+ : wxTreeTraversal(tree), m_selections(selections)
+ {
+ m_selections.Empty();
- SetName(name);
- SetValidator(validator);
+ DoTraverse(tree->GetRootItem());
+ }
+
+ virtual bool OnVisit(const wxTreeItemId& item)
+ {
+ // can't visit a virtual node.
+ if ( (GetTree()->GetRootItem() == item) && (GetTree()->GetWindowStyle() & wxTR_HIDE_ROOT))
+ {
+ return true;
+ }
+
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ if ( GetTree()->IsItemChecked(item) )
+#else
+ if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) )
+#endif
+ {
+ m_selections.Add(item);
+ }
- m_imageListNormal = NULL;
- m_imageListState = NULL;
+ return true;
+ }
- int x = pos.x;
- int y = pos.y;
- int width = size.x;
- int height = size.y;
+ size_t GetCount() const { return m_selections.GetCount(); }
- m_windowStyle = style;
+private:
+ wxArrayTreeItemIds& m_selections;
-// SetFont(wxTheFontList->FindOrCreateFont(11, wxSWISS, wxNORMAL, wxNORMAL));
+ DECLARE_NO_COPY_CLASS(TraverseSelections)
+};
- SetParent(parent);
+// internal class for counting tree items
+class TraverseCounter : public wxTreeTraversal
+{
+public:
+ TraverseCounter(const wxTreeCtrl *tree,
+ const wxTreeItemId& root,
+ bool recursively)
+ : wxTreeTraversal(tree)
+ {
+ m_count = 0;
+
+ DoTraverse(root, recursively);
+ }
+
+ virtual bool OnVisit(const wxTreeItemId& WXUNUSED(item))
+ {
+ m_count++;
- if (width <= 0)
- width = 100;
- if (height <= 0)
- height = 30;
- if (x < 0)
- x = 0;
- if (y < 0)
- y = 0;
+ return true;
+ }
- m_windowId = (id == -1) ? NewControlId() : id;
+ size_t GetCount() const { return m_count; }
+
+private:
+ size_t m_count;
+
+ DECLARE_NO_COPY_CLASS(TraverseCounter)
+};
+
+// ----------------------------------------------------------------------------
+// This class is needed for support of different images: the Win32 common
+// control natively supports only 2 images (the normal one and another for the
+// selected state). We wish to provide support for 2 more of them for folder
+// items (i.e. those which have children): for expanded state and for expanded
+// selected state. For this we use this structure to store the additional items
+// images.
+//
+// There is only one problem with this: when we retrieve the item's data, we
+// don't know whether we get a pointer to wxTreeItemData or
+// wxTreeItemIndirectData. So we always set the item id to an invalid value
+// in this class and the code using the client data checks for it and retrieves
+// the real client data in this case.
+// ----------------------------------------------------------------------------
+
+class wxTreeItemIndirectData : public wxTreeItemData
+{
+public:
+ // ctor associates this data with the item and the real item data becomes
+ // available through our GetData() method
+ wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item)
+ {
+ for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
+ {
+ m_images[n] = -1;
+ }
- DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES;
-
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
+ // save the old data
+ m_data = tree->GetItemData(item);
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if (want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER) ||
- (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
- wstyle |= WS_BORDER;
+ // and set ourselves as the new one
+ tree->SetIndirectItemData(item, this);
- if ( m_windowStyle & wxTR_HAS_BUTTONS )
- wstyle |= TVS_HASBUTTONS;
+ // we must have the invalid value for the item
+ m_pItem = 0l;
+ }
- if ( m_windowStyle & wxTR_EDIT_LABELS )
- wstyle |= TVS_EDITLABELS;
+ // dtor deletes the associated data as well
+ virtual ~wxTreeItemIndirectData() { delete m_data; }
+
+ // accessors
+ // get the real data associated with the item
+ wxTreeItemData *GetData() const { return m_data; }
+ // change it
+ void SetData(wxTreeItemData *data) { m_data = data; }
+
+ // do we have such image?
+ bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
+ // get image
+ int GetImage(wxTreeItemIcon which) const { return m_images[which]; }
+ // change it
+ void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
+
+private:
+ // all the images associated with the item
+ int m_images[wxTreeItemIcon_Max];
+
+ // the real client data
+ wxTreeItemData *m_data;
+
+ DECLARE_NO_COPY_CLASS(wxTreeItemIndirectData)
+};
+
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
+
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxTreeCtrlStyle )
+
+wxBEGIN_FLAGS( wxTreeCtrlStyle )
+ // new style border flags, we put them first to
+ // use them for streaming out
+ wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+ wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+ wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+ wxFLAGS_MEMBER(wxBORDER_RAISED)
+ wxFLAGS_MEMBER(wxBORDER_STATIC)
+ wxFLAGS_MEMBER(wxBORDER_NONE)
+
+ // old style border flags
+ wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+ wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+ wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+ wxFLAGS_MEMBER(wxRAISED_BORDER)
+ wxFLAGS_MEMBER(wxSTATIC_BORDER)
+ wxFLAGS_MEMBER(wxBORDER)
+
+ // standard window styles
+ wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+ wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+ wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+ wxFLAGS_MEMBER(wxWANTS_CHARS)
+ wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+ wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+ wxFLAGS_MEMBER(wxVSCROLL)
+ wxFLAGS_MEMBER(wxHSCROLL)
+
+ wxFLAGS_MEMBER(wxTR_EDIT_LABELS)
+ wxFLAGS_MEMBER(wxTR_NO_BUTTONS)
+ wxFLAGS_MEMBER(wxTR_HAS_BUTTONS)
+ wxFLAGS_MEMBER(wxTR_TWIST_BUTTONS)
+ wxFLAGS_MEMBER(wxTR_NO_LINES)
+ wxFLAGS_MEMBER(wxTR_FULL_ROW_HIGHLIGHT)
+ wxFLAGS_MEMBER(wxTR_LINES_AT_ROOT)
+ wxFLAGS_MEMBER(wxTR_HIDE_ROOT)
+ wxFLAGS_MEMBER(wxTR_ROW_LINES)
+ wxFLAGS_MEMBER(wxTR_HAS_VARIABLE_ROW_HEIGHT)
+ wxFLAGS_MEMBER(wxTR_SINGLE)
+ wxFLAGS_MEMBER(wxTR_MULTIPLE)
+ wxFLAGS_MEMBER(wxTR_EXTENDED)
+ wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE)
+
+wxEND_FLAGS( wxTreeCtrlStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxTreeCtrl)
+ wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
+ wxEVENT_RANGE_PROPERTY( TreeEvent , wxEVT_COMMAND_TREE_BEGIN_DRAG , wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK , wxTreeEvent )
+ wxPROPERTY_FLAGS( WindowStyle , wxTreeCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxTreeCtrl)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxTreeCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
+#endif
- if ( m_windowStyle & wxTR_LINES_AT_ROOT )
- wstyle |= TVS_LINESATROOT;
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
- // Create the toolbar control.
- HWND hWndTreeControl = CreateWindowEx(exStyle,
- WC_TREEVIEW,
- "",
- wstyle,
- x, y, width, height,
- (HWND) parent->GetHWND(),
- (HMENU)m_windowId,
- wxGetInstance(),
- NULL );
+// indices in gs_expandEvents table below
+enum
+{
+ IDX_COLLAPSE,
+ IDX_EXPAND,
+ IDX_WHAT_MAX
+};
- m_hWnd = (WXHWND) hWndTreeControl;
- if (parent) parent->AddChild(this);
-
- SubclassWin((WXHWND) m_hWnd);
+enum
+{
+ IDX_DONE,
+ IDX_DOING,
+ IDX_HOW_MAX
+};
- return TRUE;
-}
+// handy table for sending events - it has to be initialized during run-time
+// now so can't be const any more
+static /* const */ wxEventType gs_expandEvents[IDX_WHAT_MAX][IDX_HOW_MAX];
-wxTreeCtrl::~wxTreeCtrl(void)
+/*
+ but logically it's a const table with the following entries:
+=
{
- m_textCtrl.SetHWND((WXHWND) NULL);
-}
+ { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, wxEVT_COMMAND_TREE_ITEM_COLLAPSING },
+ { wxEVT_COMMAND_TREE_ITEM_EXPANDED, wxEVT_COMMAND_TREE_ITEM_EXPANDING }
+};
+*/
-// Attributes
-int wxTreeCtrl::GetCount(void) const
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// tree traversal
+// ----------------------------------------------------------------------------
+
+bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively)
{
- return (int) TreeView_GetCount((HWND) GetHWND());
+ if ( !OnVisit(root) )
+ return false;
+
+ return Traverse(root, recursively);
}
-int wxTreeCtrl::GetIndent(void) const
+bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
{
- return (int) TreeView_GetIndent((HWND) GetHWND());
+ wxTreeItemIdValue cookie;
+ wxTreeItemId child = m_tree->GetFirstChild(root, cookie);
+ while ( child.IsOk() )
+ {
+ // depth first traversal
+ if ( recursively && !Traverse(child, true) )
+ return false;
+
+ if ( !OnVisit(child) )
+ return false;
+
+ child = m_tree->GetNextChild(root, cookie);
+ }
+
+ return true;
}
-void wxTreeCtrl::SetIndent(int indent)
+// ----------------------------------------------------------------------------
+// construction and destruction
+// ----------------------------------------------------------------------------
+
+void wxTreeCtrl::Init()
{
- TreeView_SetIndent((HWND) GetHWND(), indent);
+ m_imageListNormal = NULL;
+ m_imageListState = NULL;
+ m_ownsImageListNormal = m_ownsImageListState = false;
+ m_textCtrl = NULL;
+ m_hasAnyAttr = false;
+ m_dragImage = NULL;
+ m_pVirtualRoot = NULL;
+
+ // initialize the global array of events now as it can't be done statically
+ // with the wxEVT_XXX values being allocated during run-time only
+ gs_expandEvents[IDX_COLLAPSE][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_COLLAPSED;
+ gs_expandEvents[IDX_COLLAPSE][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_COLLAPSING;
+ gs_expandEvents[IDX_EXPAND][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_EXPANDED;
+ gs_expandEvents[IDX_EXPAND][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_EXPANDING;
}
-wxImageList *wxTreeCtrl::GetImageList(const int which) const
+bool wxTreeCtrl::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
{
- if ( which == wxIMAGE_LIST_NORMAL )
+ Init();
+
+ if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
+ style |= wxBORDER_SUNKEN;
+
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
+
+ DWORD exStyle = 0;
+ DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle);
+ wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS;
+
+ if ((m_windowStyle & wxTR_NO_LINES) == 0)
+ wstyle |= TVS_HASLINES;
+ if ( m_windowStyle & wxTR_HAS_BUTTONS )
+ wstyle |= TVS_HASBUTTONS;
+
+ if ( m_windowStyle & wxTR_EDIT_LABELS )
+ wstyle |= TVS_EDITLABELS;
+
+ if ( m_windowStyle & wxTR_LINES_AT_ROOT )
+ wstyle |= TVS_LINESATROOT;
+
+ if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT )
{
- return m_imageListNormal;
- }
- else if ( which == wxIMAGE_LIST_STATE )
+ if ( wxTheApp->GetComCtl32Version() >= 471 )
+ wstyle |= TVS_FULLROWSELECT;
+ }
+
+ // using TVS_CHECKBOXES for emulation of a multiselection tree control
+ // doesn't work without the new enough headers
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \
+ !defined( __GNUWIN32_OLD__ ) && \
+ !defined( __BORLANDC__ ) && \
+ !defined( __WATCOMC__ ) && \
+ (!defined(__VISUALC__) || (__VISUALC__ > 1010))
+
+ // we emulate the multiple selection tree controls by using checkboxes: set
+ // up the image list we need for this if we do have multiple selections
+ if ( m_windowStyle & wxTR_MULTIPLE )
+ wstyle |= TVS_CHECKBOXES;
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+
+ // Create the tree control.
+ if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
+ return false;
+
+#if wxUSE_COMCTL32_SAFELY
+ wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+ wxWindow::SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
+#elif 1
+ SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+ SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
+#else
+ // This works around a bug in the Windows tree control whereby for some versions
+ // of comctrl32, setting any colour actually draws the background in black.
+ // This will initialise the background to the system colour.
+ // THIS FIX NOW REVERTED since it caused problems on _other_ systems.
+ // Assume the user has an updated comctl32.dll.
+ ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0,-1);
+ wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+ SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
+#endif
+
+
+ // VZ: this is some experimental code which may be used to get the
+ // TVS_CHECKBOXES style functionality for comctl32.dll < 4.71.
+ // AFAIK, the standard DLL does about the same thing anyhow.
+#if 0
+ if ( m_windowStyle & wxTR_MULTIPLE )
{
- return m_imageListState;
- }
- return NULL;
+ wxBitmap bmp;
+
+ // create the DC compatible with the current screen
+ HDC hdcMem = CreateCompatibleDC(NULL);
+
+ // create a mono bitmap of the standard size
+ int x = GetSystemMetrics(SM_CXMENUCHECK);
+ int y = GetSystemMetrics(SM_CYMENUCHECK);
+ wxImageList imagelistCheckboxes(x, y, false, 2);
+ HBITMAP hbmpCheck = CreateBitmap(x, y, // bitmap size
+ 1, // # of color planes
+ 1, // # bits needed for one pixel
+ 0); // array containing colour data
+ SelectObject(hdcMem, hbmpCheck);
+
+ // then draw a check mark into it
+ RECT rect = { 0, 0, x, y };
+ if ( !::DrawFrameControl(hdcMem, &rect,
+ DFC_BUTTON,
+ DFCS_BUTTONCHECK | DFCS_CHECKED) )
+ {
+ wxLogLastError(wxT("DrawFrameControl(check)"));
+ }
+
+ bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
+ imagelistCheckboxes.Add(bmp);
+
+ if ( !::DrawFrameControl(hdcMem, &rect,
+ DFC_BUTTON,
+ DFCS_BUTTONCHECK) )
+ {
+ wxLogLastError(wxT("DrawFrameControl(uncheck)"));
+ }
+
+ bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
+ imagelistCheckboxes.Add(bmp);
+
+ // clean up
+ ::DeleteDC(hdcMem);
+
+ // set the imagelist
+ SetStateImageList(&imagelistCheckboxes);
+ }
+#endif // 0
+
+ SetSize(pos.x, pos.y, size.x, size.y);
+
+ return true;
}
-void wxTreeCtrl::SetImageList(wxImageList *imageList, const int which)
+wxTreeCtrl::~wxTreeCtrl()
{
- int flags = 0;
- if ( which == wxIMAGE_LIST_NORMAL )
+ // delete any attributes
+ if ( m_hasAnyAttr )
{
- flags = TVSIL_NORMAL;
- m_imageListNormal = imageList;
- }
- else if ( which == wxIMAGE_LIST_STATE )
- {
- flags = TVSIL_STATE;
- m_imageListState = imageList;
- }
- TreeView_SetImageList((HWND) GetHWND(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
+ WX_CLEAR_HASH_MAP(wxMapTreeAttr, m_attrs);
+
+ // prevent TVN_DELETEITEM handler from deleting the attributes again!
+ m_hasAnyAttr = false;
+ }
+
+ DeleteTextCtrl();
+
+ // delete user data to prevent memory leaks
+ // also deletes hidden root node storage.
+ DeleteAllItems();
+
+ if (m_ownsImageListNormal) delete m_imageListNormal;
+ if (m_ownsImageListState) delete m_imageListState;
}
-long wxTreeCtrl::GetNextItem(const long item, int code) const
+// ----------------------------------------------------------------------------
+// accessors
+// ----------------------------------------------------------------------------
+
+// simple wrappers which add error checking in debug mode
+
+bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
{
- UINT flag = 0;
- switch ( code )
- {
- case wxTREE_NEXT_CARET:
- flag = TVGN_CARET;
- break;
- case wxTREE_NEXT_CHILD:
- flag = TVGN_CHILD;
- break;
- case wxTREE_NEXT_DROPHILITE:
- flag = TVGN_DROPHILITE;
- break;
- case wxTREE_NEXT_FIRSTVISIBLE:
- flag = TVGN_FIRSTVISIBLE;
- break;
- case wxTREE_NEXT_NEXT:
- flag = TVGN_NEXT;
- break;
- case wxTREE_NEXT_NEXTVISIBLE:
- flag = TVGN_NEXTVISIBLE;
- break;
- case wxTREE_NEXT_PARENT:
- flag = TVGN_PARENT;
- break;
- case wxTREE_NEXT_PREVIOUS:
- flag = TVGN_PREVIOUS;
- break;
- case wxTREE_NEXT_PREVIOUSVISIBLE:
- flag = TVGN_PREVIOUSVISIBLE;
- break;
- case wxTREE_NEXT_ROOT:
- flag = TVGN_ROOT;
- break;
+ wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false,
+ _T("can't retrieve virtual root item") );
+
+ if ( !TreeView_GetItem(GetHwnd(), tvItem) )
+ {
+ wxLogLastError(wxT("TreeView_GetItem"));
- default :
- break;
- }
- return (long) TreeView_GetNextItem( (HWND) GetHWND(), (HTREEITEM) item, flag);
+ return false;
+ }
+
+ return true;
}
-bool wxTreeCtrl::ItemHasChildren(const long item) const
+void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem)
{
- TV_ITEM item2;
- item2.hItem = (HTREEITEM) item;
- item2.mask = TVIF_CHILDREN;
- TreeView_GetItem((HWND) GetHWND(), &item2);
- return (item2.cChildren != 0);
+ if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
+ {
+ wxLogLastError(wxT("TreeView_SetItem"));
+ }
}
-long wxTreeCtrl::GetChild(const long item) const
+size_t wxTreeCtrl::GetCount() const
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)item);
+ return (size_t)TreeView_GetCount(GetHwnd());
}
-long wxTreeCtrl::GetParent(const long item) const
+unsigned int wxTreeCtrl::GetIndent() const
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)item);
+ return TreeView_GetIndent(GetHwnd());
}
-long wxTreeCtrl::GetFirstVisibleItem(void) const
+void wxTreeCtrl::SetIndent(unsigned int indent)
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_FIRSTVISIBLE, 0);
+ TreeView_SetIndent(GetHwnd(), indent);
}
-long wxTreeCtrl::GetNextVisibleItem(const long item) const
+wxImageList *wxTreeCtrl::GetImageList() const
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_NEXTVISIBLE, (LPARAM)item);
+ return m_imageListNormal;
}
-long wxTreeCtrl::GetSelection(void) const
+wxImageList *wxTreeCtrl::GetStateImageList() const
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_CARET, 0);
+ return m_imageListState;
}
-long wxTreeCtrl::GetRootItem(void) const
+void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
{
- return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_ROOT, 0);
+ // no error return
+ TreeView_SetImageList(GetHwnd(),
+ imageList ? imageList->GetHIMAGELIST() : 0,
+ which);
}
-// TODO: convert mask
-bool wxTreeCtrl::GetItem(wxTreeItem& info) const
+void wxTreeCtrl::SetImageList(wxImageList *imageList)
{
- TV_ITEM tvItem;
- tvItem.hItem = (HTREEITEM)info.m_itemId;
- tvItem.pszText = NULL;
- tvItem.mask = 0;
- if ( info.m_mask & wxTREE_MASK_TEXT )
- {
- tvItem.mask |= TVIF_TEXT;
- tvItem.pszText = new char[513];
- tvItem.cchTextMax = 512;
- }
- if ( info.m_mask & wxTREE_MASK_DATA )
- tvItem.mask |= TVIF_PARAM;
+ if (m_ownsImageListNormal)
+ delete m_imageListNormal;
- bool success = TreeView_GetItem((HWND)GetHWND(), &tvItem) != 0;
-
- if ( !success )
- {
- wxLogSysError("TreeView_GetItem failed");
+ SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);
+ m_ownsImageListNormal = false;
+}
- if (tvItem.pszText)
- delete[] tvItem.pszText;
+void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
+{
+ if (m_ownsImageListState) delete m_imageListState;
+ SetAnyImageList(m_imageListState = imageList, TVSIL_STATE);
+ m_ownsImageListState = false;
+}
- return FALSE;
- }
+void wxTreeCtrl::AssignImageList(wxImageList *imageList)
+{
+ SetImageList(imageList);
+ m_ownsImageListNormal = true;
+}
- wxConvertFromMSWTreeItem(info, tvItem);
+void wxTreeCtrl::AssignStateImageList(wxImageList *imageList)
+{
+ SetStateImageList(imageList);
+ m_ownsImageListState = true;
+}
- if (tvItem.pszText)
- delete[] tvItem.pszText;
+size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
+ bool recursively) const
+{
+ TraverseCounter counter(this, item, recursively);
- return success;
+ return counter.GetCount() - 1;
}
-bool wxTreeCtrl::SetItem(wxTreeItem& info)
+// ----------------------------------------------------------------------------
+// control colours
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour)
{
- TV_ITEM item;
- wxConvertToMSWTreeItem(info, item);
- return (::SendMessage((HWND) GetHWND(), TVM_SETITEM, 0, (LPARAM)&item) != 0);
+#if !wxUSE_COMCTL32_SAFELY
+ if ( !wxWindowBase::SetBackgroundColour(colour) )
+ return false;
+
+ SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel());
+#endif
+
+ return true;
}
-int wxTreeCtrl::GetItemState(const long item, const long stateMask) const
+bool wxTreeCtrl::SetForegroundColour(const wxColour &colour)
{
- wxTreeItem info;
-
- info.m_mask = wxTREE_MASK_STATE ;
- info.m_stateMask = stateMask;
- info.m_itemId = item;
+#if !wxUSE_COMCTL32_SAFELY
+ if ( !wxWindowBase::SetForegroundColour(colour) )
+ return false;
- if (!GetItem(info))
- return 0;
+ SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel());
+#endif
- return info.m_state;
+ return true;
}
-bool wxTreeCtrl::SetItemState(const long item, const long state, const long stateMask)
+// ----------------------------------------------------------------------------
+// Item access
+// ----------------------------------------------------------------------------
+
+wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
{
- wxTreeItem info;
+ wxChar buf[512]; // the size is arbitrary...
- info.m_mask = wxTREE_MASK_STATE ;
- info.m_state = state;
- info.m_stateMask = stateMask;
- info.m_itemId = item;
+ wxTreeViewItem tvItem(item, TVIF_TEXT);
+ tvItem.pszText = buf;
+ tvItem.cchTextMax = WXSIZEOF(buf);
+ if ( !DoGetItem(&tvItem) )
+ {
+ // don't return some garbage which was on stack, but an empty string
+ buf[0] = wxT('\0');
+ }
- return SetItem(info);
+ return wxString(buf);
}
-bool wxTreeCtrl::SetItemImage(const long item, const int image, const int selImage)
+void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
{
- wxTreeItem info;
+ if ( IS_VIRTUAL_ROOT(item) )
+ return;
+
+ wxTreeViewItem tvItem(item, TVIF_TEXT);
+ tvItem.pszText = (wxChar *)text.c_str(); // conversion is ok
+ DoSetItem(&tvItem);
+
+ // when setting the text of the item being edited, the text control should
+ // be updated to reflect the new text as well, otherwise calling
+ // SetItemText() in the OnBeginLabelEdit() handler doesn't have any effect
+ //
+ // don't use GetEditControl() here because m_textCtrl is not set yet
+ HWND hwndEdit = TreeView_GetEditControl(GetHwnd());
+ if ( hwndEdit )
+ {
+ if ( item == GetSelection() )
+ {
+ ::SetWindowText(hwndEdit, text);
+ }
+ }
+}
- info.m_mask = wxTREE_MASK_IMAGE ;
- info.m_image = image;
- if ( selImage > -1)
- {
- info.m_selectedImage = selImage;
- info.m_mask |= wxTREE_MASK_SELECTED_IMAGE;
- }
- info.m_itemId = item;
+int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item,
+ wxTreeItemIcon which) const
+{
+ wxTreeViewItem tvItem(item, TVIF_PARAM);
+ if ( !DoGetItem(&tvItem) )
+ {
+ return -1;
+ }
- return SetItem(info);
+ return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which);
}
-wxString wxTreeCtrl::GetItemText(const long item) const
+void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item,
+ int image,
+ wxTreeItemIcon which) const
{
- wxTreeItem info;
+ wxTreeViewItem tvItem(item, TVIF_PARAM);
+ if ( !DoGetItem(&tvItem) )
+ {
+ return;
+ }
+
+ wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam);
+
+ data->SetImage(image, which);
+
+ // make sure that we have selected images as well
+ if ( which == wxTreeItemIcon_Normal &&
+ !data->HasImage(wxTreeItemIcon_Selected) )
+ {
+ data->SetImage(image, wxTreeItemIcon_Selected);
+ }
- info.m_mask = wxTREE_MASK_TEXT ;
- info.m_itemId = item;
+ if ( which == wxTreeItemIcon_Expanded &&
+ !data->HasImage(wxTreeItemIcon_SelectedExpanded) )
+ {
+ data->SetImage(image, wxTreeItemIcon_SelectedExpanded);
+ }
+}
- if (!GetItem(info))
- return wxString("");
- return info.m_text;
+void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
+ int image,
+ int imageSel)
+{
+ wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE);
+ tvItem.iSelectedImage = imageSel;
+ tvItem.iImage = image;
+ DoSetItem(&tvItem);
}
-void wxTreeCtrl::SetItemText(const long item, const wxString& str)
+int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
+ wxTreeItemIcon which) const
{
- wxTreeItem info;
+ if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
+ {
+ // TODO: Maybe a hidden root can still provide images?
+ return -1;
+ }
+
+ if ( HasIndirectData(item) )
+ {
+ return DoGetItemImageFromData(item, which);
+ }
+
+ UINT mask;
+ switch ( which )
+ {
+ default:
+ wxFAIL_MSG( wxT("unknown tree item image type") );
+
+ case wxTreeItemIcon_Normal:
+ mask = TVIF_IMAGE;
+ break;
+
+ case wxTreeItemIcon_Selected:
+ mask = TVIF_SELECTEDIMAGE;
+ break;
+
+ case wxTreeItemIcon_Expanded:
+ case wxTreeItemIcon_SelectedExpanded:
+ return -1;
+ }
- info.m_mask = wxTREE_MASK_TEXT ;
- info.m_itemId = item;
- info.m_text = str;
+ wxTreeViewItem tvItem(item, mask);
+ DoGetItem(&tvItem);
- SetItem(info);
+ return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage;
}
-long wxTreeCtrl::GetItemData(const long item) const
+void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
+ wxTreeItemIcon which)
{
- wxTreeItem info;
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ // TODO: Maybe a hidden root can still store images?
+ return;
+ }
- info.m_mask = wxTREE_MASK_DATA ;
- info.m_itemId = item;
+ int imageNormal,
+ imageSel;
+
+ switch ( which )
+ {
+ default:
+ wxFAIL_MSG( wxT("unknown tree item image type") );
+ // fall through
+
+ case wxTreeItemIcon_Normal:
+ {
+ const int imageNormalOld = GetItemImage(item);
+ const int imageSelOld =
+ GetItemImage(item, wxTreeItemIcon_Selected);
+
+ // always set the normal image
+ imageNormal = image;
+
+ // if the selected and normal images were the same, they should
+ // be the same after the update, otherwise leave the selected
+ // image as it was
+ imageSel = imageNormalOld == imageSelOld ? image : imageSelOld;
+ }
+ break;
+
+ case wxTreeItemIcon_Selected:
+ imageNormal = GetItemImage(item);
+ imageSel = image;
+ break;
+
+ case wxTreeItemIcon_Expanded:
+ case wxTreeItemIcon_SelectedExpanded:
+ if ( !HasIndirectData(item) )
+ {
+ // we need to get the old images first, because after we create
+ // the wxTreeItemIndirectData GetItemXXXImage() will use it to
+ // get the images
+ imageNormal = GetItemImage(item);
+ imageSel = GetItemImage(item, wxTreeItemIcon_Selected);
+
+ // if it doesn't have it yet, add it
+ wxTreeItemIndirectData *data = new
+ wxTreeItemIndirectData(this, item);
+
+ // copy the data to the new location
+ data->SetImage(imageNormal, wxTreeItemIcon_Normal);
+ data->SetImage(imageSel, wxTreeItemIcon_Selected);
+ }
+
+ DoSetItemImageFromData(item, image, which);
+
+ // reset the normal/selected images because we won't use them any
+ // more - now they're stored inside the indirect data
+ imageNormal =
+ imageSel = I_IMAGECALLBACK;
+ break;
+ }
- if (!GetItem(info))
- return 0;
- return info.m_data;
+ // NB: at least in version 5.00.0518.9 of comctl32.dll we need to always
+ // change both normal and selected image - otherwise the change simply
+ // doesn't take place!
+ DoSetItemImages(item, imageNormal, imageSel);
}
-bool wxTreeCtrl::SetItemData(const long item, long data)
+wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
{
- wxTreeItem info;
+ wxTreeViewItem tvItem(item, TVIF_PARAM);
+
+ // Hidden root may have data.
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ return GET_VIRTUAL_ROOT()->GetData();
+ }
- info.m_mask = wxTREE_MASK_DATA ;
- info.m_itemId = item;
- info.m_data = data;
+ // Visible node.
+ if ( !DoGetItem(&tvItem) )
+ {
+ return NULL;
+ }
+
+ wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
+ if ( IsDataIndirect(data) )
+ {
+ data = ((wxTreeItemIndirectData *)data)->GetData();
+ }
- return SetItem(info);
+ return data;
}
-bool wxTreeCtrl::GetItemRect(const long item, wxRectangle& rect, bool textOnly) const
+void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
{
- RECT rect2;
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ GET_VIRTUAL_ROOT()->SetData(data);
+ }
+
+ // first, associate this piece of data with this item
+ if ( data )
+ {
+ data->SetId(item);
+ }
- *(HTREEITEM*)& rect2 = (HTREEITEM) item;
- bool success = (::SendMessage((HWND) GetHWND(), TVM_GETITEMRECT, (WPARAM)textOnly,
- (LPARAM)&rect2) != 0);
+ wxTreeViewItem tvItem(item, TVIF_PARAM);
- rect.x = rect2.left;
- rect.y = rect2.top;
- rect.width = rect2.right - rect2.left;
- rect.height = rect2.bottom - rect2.left;
- return success;
+ if ( HasIndirectData(item) )
+ {
+ if ( DoGetItem(&tvItem) )
+ {
+ ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data);
+ }
+ else
+ {
+ wxFAIL_MSG( wxT("failed to change tree items data") );
+ }
+ }
+ else
+ {
+ tvItem.lParam = (LPARAM)data;
+ DoSetItem(&tvItem);
+ }
}
-wxTextCtrl& wxTreeCtrl::GetEditControl(void) const
+void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item,
+ wxTreeItemIndirectData *data)
{
- HWND hWnd = (HWND) TreeView_GetEditControl((HWND) GetHWND());
- ((wxTreeCtrl *)this)->m_textCtrl.SetHWND((WXHWND) hWnd);
- return (wxTextCtrl&) m_textCtrl;
+ // this should never happen because it's unnecessary and will probably lead
+ // to crash too because the code elsewhere supposes that the pointer the
+ // wxTreeItemIndirectData has is a real wxItemData and not
+ // wxTreeItemIndirectData as well
+ wxASSERT_MSG( !HasIndirectData(item), wxT("setting indirect data twice?") );
+
+ SetItemData(item, data);
}
-// Operations
-bool wxTreeCtrl::DeleteItem(const long item)
+bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
{
- return (TreeView_DeleteItem((HWND) GetHWND(), (HTREEITEM) item) != 0);
+ // query the item itself
+ wxTreeViewItem tvItem(item, TVIF_PARAM);
+ if ( !DoGetItem(&tvItem) )
+ {
+ return false;
+ }
+
+ wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
+
+ return data && IsDataIndirect(data);
}
-bool wxTreeCtrl::ExpandItem(const long item, const int action)
+void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
{
- UINT mswAction = TVE_EXPAND;
- switch ( action )
- {
- case wxTREE_EXPAND_EXPAND:
- mswAction = TVE_EXPAND;
- break;
- case wxTREE_EXPAND_COLLAPSE:
- mswAction = TVE_COLLAPSE;
- case wxTREE_EXPAND_COLLAPSE_RESET:
- mswAction = TVE_COLLAPSERESET;
- case wxTREE_EXPAND_TOGGLE:
- mswAction = TVE_TOGGLE;
- break;
- default :
- break;
- }
- return (TreeView_Expand((HWND) GetHWND(), (HTREEITEM) item, mswAction) != 0);
+ if ( IS_VIRTUAL_ROOT(item) )
+ return;
+
+ wxTreeViewItem tvItem(item, TVIF_CHILDREN);
+ tvItem.cChildren = (int)has;
+ DoSetItem(&tvItem);
}
-long wxTreeCtrl::InsertItem(const long parent, wxTreeItem& info, const long insertAfter)
+void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
{
- TV_INSERTSTRUCT tvInsertStruct;
- tvInsertStruct.hParent = (HTREEITEM) parent ;
- tvInsertStruct.hInsertAfter = (HTREEITEM) insertAfter ;
-
- wxConvertToMSWTreeItem(info, tvInsertStruct.item);
+ if ( IS_VIRTUAL_ROOT(item) )
+ return;
- return (long) TreeView_InsertItem((HWND) GetHWND(), & tvInsertStruct);
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
+ tvItem.state = bold ? TVIS_BOLD : 0;
+ DoSetItem(&tvItem);
}
-long wxTreeCtrl::InsertItem(const long parent, const wxString& label, const int image, const int selImage,
- const long insertAfter)
+void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
{
- wxTreeItem info;
- info.m_text = label;
- info.m_mask = wxTREE_MASK_TEXT;
- if ( image > -1 )
- {
- info.m_mask |= wxTREE_MASK_IMAGE | wxTREE_MASK_SELECTED_IMAGE;
- info.m_image = image;
- if ( selImage == -1 )
- info.m_selectedImage = image;
- else
- info.m_selectedImage = selImage;
- }
+ if ( IS_VIRTUAL_ROOT(item) )
+ return;
- return InsertItem(parent, info, insertAfter);
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED);
+ tvItem.state = highlight ? TVIS_DROPHILITED : 0;
+ DoSetItem(&tvItem);
}
-bool wxTreeCtrl::SelectItem(const long item)
+void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
{
- return (TreeView_SelectItem((HWND) GetHWND(), (HTREEITEM) item) != 0);
+ if ( IS_VIRTUAL_ROOT(item) )
+ return;
+
+ wxRect rect;
+ if ( GetBoundingRect(item, rect) )
+ {
+ RefreshRect(rect);
+ }
}
-bool wxTreeCtrl::ScrollTo(const long item)
+wxColour wxTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const
{
- return (TreeView_SelectSetFirstVisible((HWND) GetHWND(), (HTREEITEM) item) != 0);
+ wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+
+ return it == m_attrs.end() ? wxNullColour : it->second->GetTextColour();
}
-bool wxTreeCtrl::DeleteAllItems(void)
+wxColour wxTreeCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const
{
- return (TreeView_DeleteAllItems((HWND) GetHWND()) != 0);
+ wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+
+ return it == m_attrs.end() ? wxNullColour : it->second->GetBackgroundColour();
}
-wxTextCtrl& wxTreeCtrl::Edit(const long item)
+wxFont wxTreeCtrl::GetItemFont(const wxTreeItemId& item) const
{
- HWND hWnd = (HWND) TreeView_EditLabel((HWND) GetHWND(), item);
- m_textCtrl.SetHWND((WXHWND) hWnd);
- return m_textCtrl;
+ wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+
+ return it == m_attrs.end() ? wxNullFont : it->second->GetFont();
}
-long wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
+void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
+ const wxColour& col)
{
- TV_HITTESTINFO hitTestInfo;
- hitTestInfo.pt.x = (int) point.x;
- hitTestInfo.pt.y = (int) point.y;
-
- TreeView_HitTest((HWND) GetHWND(), & hitTestInfo);
-
- flags = 0;
- if ( hitTestInfo.flags & TVHT_ABOVE )
- flags |= wxTREE_HITTEST_ABOVE;
- if ( hitTestInfo.flags & TVHT_BELOW )
- flags |= wxTREE_HITTEST_BELOW;
- if ( hitTestInfo.flags & TVHT_NOWHERE )
- flags |= wxTREE_HITTEST_NOWHERE;
- if ( hitTestInfo.flags & TVHT_ONITEMBUTTON )
- flags |= wxTREE_HITTEST_ONITEMBUTTON;
- if ( hitTestInfo.flags & TVHT_ONITEMICON )
- flags |= wxTREE_HITTEST_ONITEMICON;
- if ( hitTestInfo.flags & TVHT_ONITEMINDENT )
- flags |= wxTREE_HITTEST_ONITEMINDENT;
- if ( hitTestInfo.flags & TVHT_ONITEMLABEL )
- flags |= wxTREE_HITTEST_ONITEMLABEL;
- if ( hitTestInfo.flags & TVHT_ONITEMRIGHT )
- flags |= wxTREE_HITTEST_ONITEMRIGHT;
- if ( hitTestInfo.flags & TVHT_ONITEMSTATEICON )
- flags |= wxTREE_HITTEST_ONITEMSTATEICON;
- if ( hitTestInfo.flags & TVHT_TOLEFT )
- flags |= wxTREE_HITTEST_TOLEFT;
- if ( hitTestInfo.flags & TVHT_TORIGHT )
- flags |= wxTREE_HITTEST_TORIGHT;
-
- return (long) hitTestInfo.hItem ;
+ wxTreeItemAttr *attr;
+ wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+ if ( it == m_attrs.end() )
+ {
+ m_hasAnyAttr = true;
+
+ m_attrs[item.m_pItem] =
+ attr = new wxTreeItemAttr;
+ }
+ else
+ {
+ attr = it->second;
+ }
+
+ attr->SetTextColour(col);
+
+ RefreshItem(item);
}
-/*
-wxImageList *wxTreeCtrl::CreateDragImage(const long item)
+void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
+ const wxColour& col)
{
+ wxTreeItemAttr *attr;
+ wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+ if ( it == m_attrs.end() )
+ {
+ m_hasAnyAttr = true;
+
+ m_attrs[item.m_pItem] =
+ attr = new wxTreeItemAttr;
+ }
+ else // already in the hash
+ {
+ attr = it->second;
+ }
+
+ attr->SetBackgroundColour(col);
+
+ RefreshItem(item);
}
-*/
-bool wxTreeCtrl::SortChildren(const long item)
+void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
{
- return (TreeView_SortChildren((HWND) GetHWND(), (HTREEITEM) item, 0) != 0);
-}
-
-bool wxTreeCtrl::EnsureVisible(const long item)
-{
- return (TreeView_EnsureVisible((HWND) GetHWND(), (HTREEITEM) item) != 0);
+ wxTreeItemAttr *attr;
+ wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+ if ( it == m_attrs.end() )
+ {
+ m_hasAnyAttr = true;
+
+ m_attrs[item.m_pItem] =
+ attr = new wxTreeItemAttr;
+ }
+ else // already in the hash
+ {
+ attr = it->second;
+ }
+
+ attr->SetFont(font);
+
+ RefreshItem(item);
}
-bool wxTreeCtrl::MSWCommand(const WXUINT cmd, const WXWORD id)
-{
- if (cmd == EN_UPDATE)
- {
- wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
- event.SetEventObject( this );
- ProcessCommand(event);
- return TRUE;
- }
- else if (cmd == EN_KILLFOCUS)
- {
- wxCommandEvent event(wxEVT_KILL_FOCUS, id);
- event.SetEventObject( this );
- ProcessCommand(event);
- return TRUE;
- }
- else return FALSE;
-}
-
-bool wxTreeCtrl::MSWNotify(const WXWPARAM wParam, const WXLPARAM lParam)
-{
- wxTreeEvent event(wxEVT_NULL, m_windowId);
- wxEventType eventType = wxEVT_NULL;
- NMHDR* hdr1 = (NMHDR*) lParam;
- switch ( hdr1->code )
- {
- case TVN_BEGINDRAG:
- {
- eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
- event.m_pointDrag.x = hdr->ptDrag.x;
- event.m_pointDrag.y = hdr->ptDrag.y;
- break;
- }
- case TVN_BEGINLABELEDIT:
- {
- eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
- TV_DISPINFO *info = (TV_DISPINFO *)lParam;
- wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND());
- break;
- }
- case TVN_BEGINRDRAG:
- {
- eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
- event.m_pointDrag.x = hdr->ptDrag.x;
- event.m_pointDrag.y = hdr->ptDrag.y;
- break;
- }
- case TVN_DELETEITEM:
- {
- eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemOld, (HWND) GetHWND());
- event.m_pointDrag.x = hdr->ptDrag.x;
- event.m_pointDrag.y = hdr->ptDrag.y;
- break;
- }
- case TVN_ENDLABELEDIT:
- {
- eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
- TV_DISPINFO *info = (TV_DISPINFO *)lParam;
- wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND());
- break;
- }
- case TVN_GETDISPINFO:
- {
- eventType = wxEVT_COMMAND_TREE_GET_INFO;
- TV_DISPINFO *info = (TV_DISPINFO *)lParam;
- wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND());
- break;
- }
- case TVN_ITEMEXPANDING:
- {
- eventType = wxEVT_COMMAND_TREE_ITEM_EXPANDING;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
-
- switch ( hdr->action )
- {
- case TVE_EXPAND:
- event.m_code = wxTREE_EXPAND_EXPAND;
- break;
- case TVE_COLLAPSE:
- event.m_code = wxTREE_EXPAND_COLLAPSE;
- case TVE_COLLAPSERESET:
- event.m_code = wxTREE_EXPAND_COLLAPSE_RESET;
- case TVE_TOGGLE:
- event.m_code = wxTREE_EXPAND_TOGGLE;
- break;
- default :
- break;
- }
- break;
- }
- case TVN_ITEMEXPANDED:
- {
- eventType = wxEVT_COMMAND_TREE_ITEM_EXPANDED;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
- switch ( hdr->action )
- {
- case TVE_EXPAND:
- event.m_code = wxTREE_EXPAND_EXPAND;
- break;
- case TVE_COLLAPSE:
- event.m_code = wxTREE_EXPAND_COLLAPSE;
- case TVE_COLLAPSERESET:
- event.m_code = wxTREE_EXPAND_COLLAPSE_RESET;
- case TVE_TOGGLE:
- event.m_code = wxTREE_EXPAND_TOGGLE;
- break;
- default :
- break;
- }
- break;
- }
- case TVN_KEYDOWN:
- {
- eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
- TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
- event.m_code = wxCharCodeMSWToWX(info->wVKey);
- break;
- }
- case TVN_SELCHANGED:
- {
- eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
- event.m_oldItem = (long) hdr->itemNew.hItem;
-
- break;
- }
- case TVN_SELCHANGING:
- {
- eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
- NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam;
- wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND());
- event.m_oldItem = (long) hdr->itemNew.hItem;
- break;
- }
- case TVN_SETDISPINFO:
- {
- eventType = wxEVT_COMMAND_TREE_SET_INFO;
- TV_DISPINFO *info = (TV_DISPINFO *)lParam;
- wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND());
- break;
- }
-
- default :
- return wxControl::MSWNotify(wParam, lParam);
- break;
- }
-
- event.SetEventObject( this );
- event.SetEventType(eventType);
-
- if ( !GetEventHandler()->ProcessEvent(event) )
- return FALSE;
-
- if (hdr1->code == TVN_GETDISPINFO)
- {
- TV_DISPINFO *info = (TV_DISPINFO *)lParam;
- wxConvertToMSWTreeItem(event.m_item, info->item);
- }
-
- return TRUE;
-}
-
-// Tree item structure
-wxTreeItem::wxTreeItem(void)
-{
- m_mask = 0;
- m_itemId = 0;
- m_state = 0;
- m_stateMask = 0;
- m_image = -1;
- m_selectedImage = -1;
- m_children = 0;
- m_data = 0;
-}
-
-// If getFullInfo is TRUE, we explicitly query for more info if we haven't got it all.
-static void wxConvertFromMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem, HWND getFullInfo)
-{
- info.m_data = tvItem.lParam;
- info.m_mask = 0;
- info.m_state = 0;
- info.m_stateMask = 0;
-
- long oldMask = tvItem.mask;
-
- bool needText = FALSE;
- if (getFullInfo != 0)
- {
- if ( tvItem.mask & TVIF_TEXT )
- needText = FALSE;
- else
- needText = TRUE;
+// ----------------------------------------------------------------------------
+// Item status
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
+{
+ if ( item == wxTreeItemId(TVI_ROOT) )
+ {
+ // virtual (hidden) root is never visible
+ return false;
+ }
+
+ // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
+ RECT rect;
- if ( needText )
+ // this ugliness comes directly from MSDN - it *is* the correct way to pass
+ // the HTREEITEM with TVM_GETITEMRECT
+ *(HTREEITEM *)&rect = HITEM(item);
+
+ // true means to get rect for just the text, not the whole line
+ if ( !::SendMessage(GetHwnd(), TVM_GETITEMRECT, true, (LPARAM)&rect) )
{
- tvItem.pszText = new char[513];
- tvItem.cchTextMax = 512;
+ // if TVM_GETITEMRECT returned false, then the item is definitely not
+ // visible (because its parent is not expanded)
+ return false;
}
- tvItem.mask |= TVIF_HANDLE | TVIF_STATE | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM ;
- ::SendMessage(getFullInfo, TVM_GETITEM, 0, (LPARAM)& tvItem) ;
- }
- if ( tvItem.mask & TVIF_HANDLE )
- {
- info.m_mask |= wxTREE_MASK_HANDLE;
- info.m_itemId = (long) tvItem.hItem;
- }
- if ( tvItem.mask & TVIF_STATE )
- {
- info.m_mask |= wxTREE_MASK_STATE;
- if ( tvItem.stateMask & TVIS_BOLD)
- {
- info.m_stateMask |= wxTREE_STATE_BOLD ;
- if ( tvItem.state & TVIS_BOLD )
- info.m_state |= wxTREE_STATE_BOLD ;
- }
-
- if ( tvItem.stateMask & TVIS_CUT)
- {
- info.m_stateMask |= wxTREE_STATE_CUT ;
- if ( tvItem.state & TVIS_CUT )
- info.m_state |= wxTREE_STATE_CUT ;
- }
-
- if ( tvItem.stateMask & TVIS_DROPHILITED)
- {
- info.m_stateMask |= wxTREE_STATE_DROPHILITED ;
- if ( tvItem.state & TVIS_DROPHILITED )
- info.m_state |= wxTREE_STATE_DROPHILITED ;
- }
- if ( tvItem.stateMask & TVIS_EXPANDED)
- {
- info.m_stateMask |= wxTREE_STATE_EXPANDED ;
- if ( tvItem.state & TVIS_EXPANDED )
- info.m_state |= wxTREE_STATE_EXPANDED ;
- }
- if ( tvItem.stateMask & TVIS_EXPANDEDONCE)
- {
- info.m_stateMask |= wxTREE_STATE_EXPANDEDONCE ;
- if ( tvItem.state & TVIS_EXPANDEDONCE )
- info.m_state |= wxTREE_STATE_EXPANDEDONCE ;
- }
- if ( tvItem.stateMask & TVIS_FOCUSED)
- {
- info.m_stateMask |= wxTREE_STATE_FOCUSED ;
- if ( tvItem.state & TVIS_FOCUSED )
- info.m_state |= wxTREE_STATE_FOCUSED ;
- }
- if ( tvItem.stateMask & TVIS_SELECTED)
- {
- info.m_stateMask |= wxTREE_STATE_SELECTED ;
- if ( tvItem.state & TVIS_SELECTED )
- info.m_state |= wxTREE_STATE_SELECTED ;
- }
- }
-
- if ( tvItem.mask & TVIF_TEXT )
- {
- info.m_mask |= wxTREE_MASK_TEXT;
- info.m_text = tvItem.pszText;
- }
- if ( tvItem.mask & TVIF_IMAGE )
- {
- info.m_mask |= wxTREE_MASK_IMAGE;
- info.m_image = tvItem.iImage;
- }
- if ( tvItem.mask & TVIF_SELECTEDIMAGE )
- {
- info.m_mask |= wxTREE_MASK_SELECTED_IMAGE;
- info.m_selectedImage = tvItem.iSelectedImage;
- }
- if ( tvItem.mask & TVIF_CHILDREN )
- {
- info.m_mask |= wxTREE_MASK_CHILDREN;
- info.m_children = tvItem.cChildren;
- }
- if ( tvItem.mask & TVIF_PARAM )
- info.m_mask |= wxTREE_MASK_DATA;
-
- if (needText)
- {
- if (tvItem.pszText)
- delete[] tvItem.pszText;
- }
- tvItem.mask = oldMask ;
-}
-
-static void wxConvertToMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem)
-{
- tvItem.hItem = (HTREEITEM) info.m_itemId ;
-
- tvItem.iImage = info.m_image ;
- tvItem.iSelectedImage = info.m_selectedImage;
- tvItem.cChildren = info.m_children;
- tvItem.lParam = info.m_data;
- tvItem.mask = 0;
- tvItem.stateMask = 0;
- tvItem.state = 0;
-
- if (info.m_mask & wxTREE_MASK_HANDLE)
- tvItem.mask |= TVIF_HANDLE ;
- if (info.m_mask & wxTREE_MASK_STATE)
- tvItem.mask |= TVIF_STATE ;
- if (info.m_mask & wxTREE_MASK_TEXT)
- {
- tvItem.mask |= TVIF_TEXT ;
- tvItem.pszText = (char *) (const char *)info.m_text ;
- if ( tvItem.pszText )
- tvItem.cchTextMax = info.m_text.Length();
- else
- tvItem.cchTextMax = 0;
- }
- if (info.m_mask & wxTREE_MASK_IMAGE)
- tvItem.mask |= TVIF_IMAGE ;
- if (info.m_mask & wxTREE_MASK_SELECTED_IMAGE)
- tvItem.mask |= TVIF_SELECTEDIMAGE ;
- if (info.m_mask & wxTREE_MASK_CHILDREN)
- tvItem.mask |= TVIF_CHILDREN ;
- if (info.m_mask & wxTREE_MASK_DATA)
- tvItem.mask |= TVIF_PARAM ;
-
- if (info.m_stateMask & wxTREE_STATE_BOLD)
- {
- tvItem.stateMask |= TVIS_BOLD ;
- tvItem.state |= TVIS_BOLD;
- }
- if (info.m_stateMask & wxTREE_STATE_CUT)
- {
- tvItem.stateMask |= TVIS_CUT ;
- if ( info.m_state & wxTREE_STATE_CUT )
- tvItem.state |= TVIS_CUT;
- }
- if (info.m_stateMask & wxTREE_STATE_DROPHILITED)
- {
- tvItem.stateMask |= TVIS_DROPHILITED;
- if ( info.m_state & wxTREE_STATE_DROPHILITED )
- tvItem.state |= TVIS_DROPHILITED;
- }
- if (info.m_stateMask & wxTREE_STATE_EXPANDED)
- {
- tvItem.stateMask |= TVIS_EXPANDED;
- if ( info.m_state & wxTREE_STATE_EXPANDED )
- tvItem.state |= TVIS_EXPANDED;
- }
- if (info.m_stateMask & wxTREE_STATE_EXPANDEDONCE)
- {
- tvItem.stateMask |= TVIS_EXPANDEDONCE;
- if ( info.m_state & wxTREE_STATE_EXPANDEDONCE )
- tvItem.state |= TVIS_EXPANDEDONCE;
- }
- if (info.m_stateMask & wxTREE_STATE_FOCUSED)
- {
- tvItem.stateMask |= TVIS_FOCUSED;
- if ( info.m_state & wxTREE_STATE_FOCUSED )
- tvItem.state |= TVIS_FOCUSED;
- }
- if (info.m_stateMask & wxTREE_STATE_SELECTED)
- {
- tvItem.stateMask |= TVIS_SELECTED;
- if ( info.m_state & wxTREE_STATE_SELECTED )
- tvItem.state |= TVIS_SELECTED;
- }
-}
-
-// Tree event
-IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxCommandEvent)
-
-wxTreeEvent::wxTreeEvent(wxEventType commandType, int id):
- wxCommandEvent(commandType, id)
-{
- m_code = 0;
- m_oldItem = 0;
+ // however if it returned true, the item might still be outside the
+ // currently visible part of the tree, test for it (notice that partly
+ // visible means visible here)
+ return rect.bottom > 0 && rect.top < GetClientSize().y;
}
-#endif
+bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_CHILDREN);
+ DoGetItem(&tvItem);
+
+ return tvItem.cChildren != 0;
+}
+
+bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
+{
+ // probably not a good idea to put it here
+ //wxASSERT( ItemHasChildren(item) );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_EXPANDED) != 0;
+}
+
+bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_SELECTED) != 0;
+}
+
+bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
+{
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
+ DoGetItem(&tvItem);
+
+ return (tvItem.state & TVIS_BOLD) != 0;
+}
+
+// ----------------------------------------------------------------------------
+// navigation
+// ----------------------------------------------------------------------------
+
+wxTreeItemId wxTreeCtrl::GetRootItem() const
+{
+ // Root may be real (visible) or virtual (hidden).
+ if ( GET_VIRTUAL_ROOT() )
+ return TVI_ROOT;
+
+ return wxTreeItemId(TreeView_GetRoot(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetSelection() const
+{
+ wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxTreeItemId(),
+ wxT("this only works with single selection controls") );
+
+ return wxTreeItemId(TreeView_GetSelection(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const
+{
+ HTREEITEM hItem;
+
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ // no parent for the virtual root
+ hItem = 0;
+ }
+ else // normal item
+ {
+ hItem = TreeView_GetParent(GetHwnd(), HITEM(item));
+ if ( !hItem && HasFlag(wxTR_HIDE_ROOT) )
+ {
+ // the top level items should have the virtual root as their parent
+ hItem = TVI_ROOT;
+ }
+ }
+
+ return wxTreeItemId(hItem);
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
+ wxTreeItemIdValue& cookie) const
+{
+ // remember the last child returned in 'cookie'
+ cookie = TreeView_GetChild(GetHwnd(), HITEM(item));
+
+ return wxTreeItemId(cookie);
+}
+
+wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
+ wxTreeItemIdValue& cookie) const
+{
+ wxTreeItemId item(TreeView_GetNextSibling(GetHwnd(),
+ HITEM(wxTreeItemId(cookie))));
+ cookie = item.m_pItem;
+
+ return item;
+}
+
+#if WXWIN_COMPATIBILITY_2_4
+
+wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
+ long& cookie) const
+{
+ cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item));
+
+ return wxTreeItemId((void *)cookie);
+}
+
+wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
+ long& cookie) const
+{
+ wxTreeItemId item(TreeView_GetNextSibling
+ (
+ GetHwnd(),
+ HITEM(wxTreeItemId((void *)cookie)
+ )));
+ cookie = (long)item.m_pItem;
+
+ return item;
+}
+
+#endif // WXWIN_COMPATIBILITY_2_4
+
+wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
+{
+ // can this be done more efficiently?
+ wxTreeItemIdValue cookie;
+
+ wxTreeItemId childLast,
+ child = GetFirstChild(item, cookie);
+ while ( child.IsOk() )
+ {
+ childLast = child;
+ child = GetNextChild(item, cookie);
+ }
+
+ return childLast;
+}
+
+wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
+{
+ return wxTreeItemId(TreeView_GetNextSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
+{
+ return wxTreeItemId(TreeView_GetPrevSibling(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
+{
+ return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd()));
+}
+
+wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
+{
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
+
+ return wxTreeItemId(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+}
+
+wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
+{
+ wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
+
+ return wxTreeItemId(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+}
+
+// ----------------------------------------------------------------------------
+// multiple selections emulation
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
+{
+ // receive the desired information.
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+ DoGetItem(&tvItem);
+
+ // state image indices are 1 based
+ return ((tvItem.state >> 12) - 1) == 1;
+}
+
+void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
+{
+ // receive the desired information.
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+
+ DoGetItem(&tvItem);
+
+ // state images are one-based
+ tvItem.state = (check ? 2 : 1) << 12;
+
+ DoSetItem(&tvItem);
+}
+
+size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
+{
+ TraverseSelections selector(this, selections);
+
+ return selector.GetCount();
+}
+
+// ----------------------------------------------------------------------------
+// Usual operations
+// ----------------------------------------------------------------------------
+
+wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
+ wxTreeItemId hInsertAfter,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
+ wxTreeItemId(),
+ _T("can't have more than one root in the tree") );
+
+ TV_INSERTSTRUCT tvIns;
+ tvIns.hParent = HITEM(parent);
+ tvIns.hInsertAfter = HITEM(hInsertAfter);
+
+ // this is how we insert the item as the first child: supply a NULL
+ // hInsertAfter
+ if ( !tvIns.hInsertAfter )
+ {
+ tvIns.hInsertAfter = TVI_FIRST;
+ }
+
+ UINT mask = 0;
+ if ( !text.IsEmpty() )
+ {
+ mask |= TVIF_TEXT;
+ tvIns.item.pszText = (wxChar *)text.c_str(); // cast is ok
+ }
+ else
+ {
+ tvIns.item.pszText = NULL;
+ tvIns.item.cchTextMax = 0;
+ }
+
+ if ( image != -1 )
+ {
+ mask |= TVIF_IMAGE;
+ tvIns.item.iImage = image;
+
+ if ( selectedImage == -1 )
+ {
+ // take the same image for selected icon if not specified
+ selectedImage = image;
+ }
+ }
+
+ if ( selectedImage != -1 )
+ {
+ mask |= TVIF_SELECTEDIMAGE;
+ tvIns.item.iSelectedImage = selectedImage;
+ }
+
+ if ( data != NULL )
+ {
+ mask |= TVIF_PARAM;
+ tvIns.item.lParam = (LPARAM)data;
+ }
+
+ tvIns.item.mask = mask;
+
+ HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns);
+ if ( id == 0 )
+ {
+ wxLogLastError(wxT("TreeView_InsertItem"));
+ }
+
+ if ( data != NULL )
+ {
+ // associate the application tree item with Win32 tree item handle
+ data->SetId(id);
+ }
+
+ return wxTreeItemId(id);
+}
+
+// for compatibility only
+#if WXWIN_COMPATIBILITY_2_4
+
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selImage,
+ long insertAfter)
+{
+ return DoInsertItem(parent, wxTreeItemId((void *)insertAfter), text,
+ image, selImage, NULL);
+}
+
+#endif // WXWIN_COMPATIBILITY_2_4
+
+wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+
+ if ( m_windowStyle & wxTR_HIDE_ROOT )
+ {
+ // create a virtual root item, the parent for all the others
+ m_pVirtualRoot = new wxVirtualNode(data);
+
+ return TVI_ROOT;
+ }
+
+ return DoInsertItem(wxTreeItemId(), wxTreeItemId(),
+ text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, TVI_FIRST,
+ text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ const wxTreeItemId& idPrevious,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, idPrevious, text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
+ size_t index,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ // find the item from index
+ wxTreeItemIdValue cookie;
+ wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie);
+ while ( index != 0 && idCur.IsOk() )
+ {
+ index--;
+
+ idPrev = idCur;
+ idCur = GetNextChild(parent, cookie);
+ }
+
+ // assert, not check: if the index is invalid, we will append the item
+ // to the end
+ wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") );
+
+ return DoInsertItem(parent, idPrev, text, image, selectedImage, data);
+}
+
+wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data)
+{
+ return DoInsertItem(parent, TVI_LAST,
+ text, image, selectedImage, data);
+}
+
+void wxTreeCtrl::Delete(const wxTreeItemId& item)
+{
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
+}
+
+// delete all children (but don't delete the item itself)
+void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
+{
+ wxTreeItemIdValue cookie;
+
+ wxArrayTreeItemIds children;
+ wxTreeItemId child = GetFirstChild(item, cookie);
+ while ( child.IsOk() )
+ {
+ children.Add(child);
+
+ child = GetNextChild(item, cookie);
+ }
+
+ size_t nCount = children.Count();
+ for ( size_t n = 0; n < nCount; n++ )
+ {
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM_PTR(children[n])) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
+ }
+}
+
+void wxTreeCtrl::DeleteAllItems()
+{
+ // delete the "virtual" root item.
+ if ( GET_VIRTUAL_ROOT() )
+ {
+ delete GET_VIRTUAL_ROOT();
+ m_pVirtualRoot = NULL;
+ }
+
+ // and all the real items
+
+ if ( !TreeView_DeleteAllItems(GetHwnd()) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteAllItems"));
+ }
+}
+
+void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
+{
+ wxASSERT_MSG( flag == TVE_COLLAPSE ||
+ flag == (TVE_COLLAPSE | TVE_COLLAPSERESET) ||
+ flag == TVE_EXPAND ||
+ flag == TVE_TOGGLE,
+ wxT("Unknown flag in wxTreeCtrl::DoExpand") );
+
+ // A hidden root can be neither expanded nor collapsed.
+ wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
+ wxT("Can't expand/collapse hidden root node!") )
+
+ // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
+ // emulate them. This behaviour has changed slightly with comctl32.dll
+ // v 4.70 - now it does send them but only the first time. To maintain
+ // compatible behaviour and also in order to not have surprises with the
+ // future versions, don't rely on this and still do everything ourselves.
+ // To avoid that the messages be sent twice when the item is expanded for
+ // the first time we must clear TVIS_EXPANDEDONCE style manually.
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDEDONCE);
+ tvItem.state = 0;
+ DoSetItem(&tvItem);
+
+ if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
+ {
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ event.m_item = item;
+ event.SetEventObject(this);
+
+ // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
+ // itself
+ event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
+ : IDX_COLLAPSE]
+ [IDX_DONE]);
+
+ (void)GetEventHandler()->ProcessEvent(event);
+ }
+ //else: change didn't took place, so do nothing at all
+}
+
+void wxTreeCtrl::Expand(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_EXPAND);
+}
+
+void wxTreeCtrl::Collapse(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_COLLAPSE);
+}
+
+void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_COLLAPSE | TVE_COLLAPSERESET);
+}
+
+void wxTreeCtrl::Toggle(const wxTreeItemId& item)
+{
+ DoExpand(item, TVE_TOGGLE);
+}
+
+#if WXWIN_COMPATIBILITY_2_4
+void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action)
+{
+ DoExpand(item, action);
+}
+#endif
+
+void wxTreeCtrl::Unselect()
+{
+ wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
+ wxT("doesn't make sense, may be you want UnselectAll()?") );
+
+ // just remove the selection
+ SelectItem(wxTreeItemId());
+}
+
+void wxTreeCtrl::UnselectAll()
+{
+ if ( m_windowStyle & wxTR_MULTIPLE )
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ for ( size_t n = 0; n < count; n++ )
+ {
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ SetItemCheck(HITEM_PTR(selections[n]), false);
+#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ ::UnselectItem(GetHwnd(), HITEM_PTR(selections[n]));
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ }
+ }
+ else
+ {
+ // just remove the selection
+ Unselect();
+ }
+}
+
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
+{
+ if ( m_windowStyle & wxTR_MULTIPLE )
+ {
+#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ // selecting the item means checking it
+ SetItemCheck(item);
+#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ ::SelectItem(GetHwnd(), HITEM(item));
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ }
+ else
+ {
+ // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive
+ // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
+ // send them ourselves
+
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ event.m_item = item;
+ event.SetEventObject(this);
+
+ event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING);
+ if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+ {
+ if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+ else
+ {
+ event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
+ (void)GetEventHandler()->ProcessEvent(event);
+ }
+ }
+ //else: program vetoed the change
+ }
+}
+
+void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+{
+ // no error return
+ TreeView_EnsureVisible(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
+{
+ if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectSetFirstVisible"));
+ }
+}
+
+wxTextCtrl *wxTreeCtrl::GetEditControl() const
+{
+ return m_textCtrl;
+}
+
+void wxTreeCtrl::DeleteTextCtrl()
+{
+ if ( m_textCtrl )
+ {
+ // the HWND corresponding to this control is deleted by the tree
+ // control itself and we don't know when exactly this happens, so check
+ // if the window still exists before calling UnsubclassWin()
+ if ( !::IsWindow(GetHwndOf(m_textCtrl)) )
+ {
+ m_textCtrl->SetHWND(0);
+ }
+
+ m_textCtrl->UnsubclassWin();
+ m_textCtrl->SetHWND(0);
+ delete m_textCtrl;
+ m_textCtrl = NULL;
+ }
+}
+
+wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+ wxClassInfo* textControlClass)
+{
+ wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
+
+ DeleteTextCtrl();
+
+ m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
+ HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item));
+
+ // this is not an error - the TVN_BEGINLABELEDIT handler might have
+ // returned false
+ if ( !hWnd )
+ {
+ delete m_textCtrl;
+ m_textCtrl = NULL;
+ return NULL;
+ }
+
+ // textctrl is subclassed in MSWOnNotify
+ return m_textCtrl;
+}
+
+// End label editing, optionally cancelling the edit
+void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges)
+{
+ TreeView_EndEditLabelNow(GetHwnd(), discardChanges);
+
+ DeleteTextCtrl();
+}
+
+wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
+{
+ TV_HITTESTINFO hitTestInfo;
+ hitTestInfo.pt.x = (int)point.x;
+ hitTestInfo.pt.y = (int)point.y;
+
+ TreeView_HitTest(GetHwnd(), &hitTestInfo);
+
+ flags = 0;
+
+ // avoid repetition
+ #define TRANSLATE_FLAG(flag) if ( hitTestInfo.flags & TVHT_##flag ) \
+ flags |= wxTREE_HITTEST_##flag
+
+ TRANSLATE_FLAG(ABOVE);
+ TRANSLATE_FLAG(BELOW);
+ TRANSLATE_FLAG(NOWHERE);
+ TRANSLATE_FLAG(ONITEMBUTTON);
+ TRANSLATE_FLAG(ONITEMICON);
+ TRANSLATE_FLAG(ONITEMINDENT);
+ TRANSLATE_FLAG(ONITEMLABEL);
+ TRANSLATE_FLAG(ONITEMRIGHT);
+ TRANSLATE_FLAG(ONITEMSTATEICON);
+ TRANSLATE_FLAG(TOLEFT);
+ TRANSLATE_FLAG(TORIGHT);
+
+ #undef TRANSLATE_FLAG
+
+ return wxTreeItemId(hitTestInfo.hItem);
+}
+
+bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
+ wxRect& rect,
+ bool textOnly) const
+{
+ RECT rc;
+
+ // Virtual root items have no bounding rectangle
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ return false;
+ }
+
+ if ( TreeView_GetItemRect(GetHwnd(), HITEM(item),
+ &rc, textOnly) )
+ {
+ rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom));
+
+ return true;
+ }
+ else
+ {
+ // couldn't retrieve rect: for example, item isn't visible
+ return false;
+ }
+}
+
+// ----------------------------------------------------------------------------
+// sorting stuff
+// ----------------------------------------------------------------------------
+
+// this is just a tiny namespace which is friend to wxTreeCtrl and so can use
+// functions such as IsDataIndirect()
+class wxTreeSortHelper
+{
+public:
+ static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree);
+
+private:
+ static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item)
+ {
+ wxTreeItemData *data = (wxTreeItemData *)item;
+ if ( tree->IsDataIndirect(data) )
+ {
+ data = ((wxTreeItemIndirectData *)data)->GetData();
+ }
+
+ return data->GetId();
+ }
+};
+
+int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
+ LPARAM pItem2,
+ LPARAM htree)
+{
+ wxCHECK_MSG( pItem1 && pItem2, 0,
+ wxT("sorting tree without data doesn't make sense") );
+
+ wxTreeCtrl *tree = (wxTreeCtrl *)htree;
+
+ return tree->OnCompareItems(GetIdFromData(tree, pItem1),
+ GetIdFromData(tree, pItem2));
+}
+
+int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
+ const wxTreeItemId& item2)
+{
+ return wxStrcmp(GetItemText(item1), GetItemText(item2));
+}
+
+void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
+{
+ // rely on the fact that TreeView_SortChildren does the same thing as our
+ // default behaviour, i.e. sorts items alphabetically and so call it
+ // directly if we're not in derived class (much more efficient!)
+ if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
+ {
+ TreeView_SortChildren(GetHwnd(), HITEM(item), 0);
+ }
+ else
+ {
+ TV_SORTCB tvSort;
+ tvSort.hParent = HITEM(item);
+ tvSort.lpfnCompare = wxTreeSortHelper::Compare;
+ tvSort.lParam = (LPARAM)this;
+ TreeView_SortChildrenCB(GetHwnd(), &tvSort, 0 /* reserved */);
+ }
+}
+
+// ----------------------------------------------------------------------------
+// implementation
+// ----------------------------------------------------------------------------
+
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
+{
+ if ( cmd == EN_UPDATE )
+ {
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
+ event.SetEventObject( this );
+ ProcessCommand(event);
+ }
+ else if ( cmd == EN_KILLFOCUS )
+ {
+ wxCommandEvent event(wxEVT_KILL_FOCUS, id);
+ event.SetEventObject( this );
+ ProcessCommand(event);
+ }
+ else
+ {
+ // nothing done
+ return false;
+ }
+
+ // command processed
+ return true;
+}
+
+// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
+// only do it during dragging, minimize wxWin overhead (this is important for
+// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
+// instead of passing by wxWin events
+long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ bool processed = false;
+ long rc = 0;
+ bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
+
+ if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
+ {
+ // we only process mouse messages here and these parameters have the
+ // same meaning for all of them
+ int x = GET_X_LPARAM(lParam),
+ y = GET_Y_LPARAM(lParam);
+ HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y);
+
+ switch ( nMsg )
+ {
+ case WM_RBUTTONDOWN:
+ // if the item we are about to right click on
+ // is not already select, remove the entire
+ // previous selection
+ if (!::IsItemSelected(GetHwnd(), htItem))
+ {
+ UnselectAll();
+ }
+
+ // select item and set the focus to the
+ // newly selected item
+ ::SelectItem(GetHwnd(), htItem);
+ ::SetFocus(GetHwnd(), htItem);
+ break;
+
+#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ case WM_LBUTTONDOWN:
+ if ( htItem && isMultiple )
+ {
+ if ( wParam & MK_CONTROL )
+ {
+ SetFocus();
+
+ // toggle selected state
+ ToggleItemSelection(GetHwnd(), htItem);
+
+ ::SetFocus(GetHwnd(), htItem);
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+
+ processed = true;
+ }
+ else if ( wParam & MK_SHIFT )
+ {
+ // this selects all items between the starting one and
+ // the current
+
+ if ( !m_htSelStart )
+ {
+ // take the focused item
+ m_htSelStart = TreeView_GetSelection(GetHwnd());
+ }
+
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
+ !(wParam & MK_CONTROL));
+
+ ::SetFocus(GetHwnd(), htItem);
+
+ processed = true;
+ }
+ else // normal click
+ {
+ // avoid doing anything if we click on the only
+ // currently selected item
+
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ if ( count == 0 ||
+ count > 1 ||
+ HITEM_PTR(selections[0]) != htItem )
+ {
+ // clear the previously selected items, if the
+ // user clicked outside of the present selection.
+ // otherwise, perform the deselection on mouse-up.
+ // this allows multiple drag and drop to work.
+
+ if (IsItemSelected(GetHwnd(), htItem))
+ {
+ ::SetFocus(GetHwnd(), htItem);
+ }
+ else
+ {
+ UnselectAll();
+
+ // prevent the click from starting in-place editing
+ // which should only happen if we click on the
+ // already selected item (and nothing else is
+ // selected)
+
+ TreeView_SelectItem(GetHwnd(), 0);
+ ::SelectItem(GetHwnd(), htItem);
+ }
+ }
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+ }
+ }
+ break;
+#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+
+ case WM_MOUSEMOVE:
+ if ( m_dragImage )
+ {
+ m_dragImage->Move(wxPoint(x, y));
+ if ( htItem )
+ {
+ // highlight the item as target (hiding drag image is
+ // necessary - otherwise the display will be corrupted)
+ m_dragImage->Hide();
+ TreeView_SelectDropTarget(GetHwnd(), htItem);
+ m_dragImage->Show();
+ }
+ }
+ break;
+
+ case WM_LBUTTONUP:
+
+ // facilitates multiple drag-and-drop
+ if (htItem && isMultiple)
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if (count > 1 &&
+ !(wParam & MK_CONTROL) &&
+ !(wParam & MK_SHIFT))
+ {
+ UnselectAll();
+ TreeView_SelectItem(GetHwnd(), htItem);
+ }
+ }
+
+ // fall through
+
+ case WM_RBUTTONUP:
+ if ( m_dragImage )
+ {
+ m_dragImage->EndDrag();
+ delete m_dragImage;
+ m_dragImage = NULL;
+
+ // generate the drag end event
+ wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
+
+ event.m_item = htItem;
+ event.m_pointDrag = wxPoint(x, y);
+ event.SetEventObject(this);
+
+ (void)GetEventHandler()->ProcessEvent(event);
+
+ // if we don't do it, the tree seems to think that 2 items
+ // are selected simultaneously which is quite weird
+ TreeView_SelectDropTarget(GetHwnd(), 0);
+ }
+ break;
+ }
+ }
+#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
+ {
+ // the tree control greys out the selected item when it loses focus and
+ // paints it as selected again when it regains it, but it won't do it
+ // for the other items itself - help it
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ RECT rect;
+ for ( size_t n = 0; n < count; n++ )
+ {
+ // TreeView_GetItemRect() will return false if item is not visible,
+ // which may happen perfectly well
+ if ( TreeView_GetItemRect(GetHwnd(), HITEM_PTR(selections[n]),
+ &rect, true) )
+ {
+ ::InvalidateRect(GetHwnd(), &rect, false);
+ }
+ }
+ }
+ else if ( nMsg == WM_KEYDOWN && isMultiple )
+ {
+ bool bCtrl = wxIsCtrlDown(),
+ bShift = wxIsShiftDown();
+
+ // we handle.arrows and space, but not page up/down and home/end: the
+ // latter should be easy, but not the former
+
+ HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( wParam == VK_SPACE )
+ {
+ if ( bCtrl )
+ {
+ ToggleItemSelection(GetHwnd(), htSel);
+ }
+ else
+ {
+ UnselectAll();
+
+ ::SelectItem(GetHwnd(), htSel);
+ }
+
+ processed = true;
+ }
+ else if ( wParam == VK_UP || wParam == VK_DOWN )
+ {
+ if ( !bCtrl && !bShift )
+ {
+ // no modifiers, just clear selection and then let the default
+ // processing to take place
+ UnselectAll();
+ }
+ else if ( htSel )
+ {
+ (void)wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ HTREEITEM htNext = (HTREEITEM)(wParam == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel));
+
+ if ( !htNext )
+ {
+ // at the top/bottom
+ htNext = htSel;
+ }
+
+ if ( bShift )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
+ }
+ else // bCtrl
+ {
+ // without changing selection
+ ::SetFocus(GetHwnd(), htNext);
+ }
+
+ processed = true;
+ }
+ }
+ }
+#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+ else if ( nMsg == WM_CHAR )
+ {
+ // don't let the control process Space and Return keys because it
+ // doesn't do anything useful with them anyhow but always beeps
+ // annoyingly when it receives them and there is no way to turn it off
+ // simply if you just process TREEITEM_ACTIVATED event to which Space
+ // and Enter presses are mapped in your code
+ if ( wParam == VK_SPACE || wParam == VK_RETURN )
+ {
+ processed = true;
+ }
+ }
+
+ if ( !processed )
+ rc = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+ return rc;
+}
+
+// process WM_NOTIFY Windows message
+bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
+{
+ wxTreeEvent event(wxEVT_NULL, m_windowId);
+ wxEventType eventType = wxEVT_NULL;
+ NMHDR *hdr = (NMHDR *)lParam;
+
+ switch ( hdr->code )
+ {
+ case TVN_BEGINDRAG:
+ eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG;
+ // fall through
+
+ case TVN_BEGINRDRAG:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG;
+ //else: left drag, already set above
+
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = tv->itemNew.hItem;
+ event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y);
+
+ // don't allow dragging by default: the user code must
+ // explicitly say that it wants to allow it to avoid breaking
+ // the old apps
+ event.Veto();
+ }
+ break;
+
+ case TVN_BEGINLABELEDIT:
+ {
+ eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = info->item.hItem;
+ event.m_label = info->item.pszText;
+ event.m_editCancelled = false;
+ }
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
+ NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+
+ event.m_item = tv->itemOld.hItem;
+
+ if ( m_hasAnyAttr )
+ {
+ wxMapTreeAttr::iterator it = m_attrs.find(tv->itemOld.hItem);
+ if ( it != m_attrs.end() )
+ {
+ delete it->second;
+ m_attrs.erase(it);
+ }
+ }
+ }
+ break;
+
+ case TVN_ENDLABELEDIT:
+ {
+ eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = info->item.hItem;
+ event.m_label = info->item.pszText;
+ if (info->item.pszText == NULL)
+ {
+ event.m_editCancelled = true;
+ }
+ else
+ {
+ event.m_editCancelled = false;
+ }
+ break;
+ }
+
+ case TVN_GETDISPINFO:
+ eventType = wxEVT_COMMAND_TREE_GET_INFO;
+ // fall through
+
+ case TVN_SETDISPINFO:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_SET_INFO;
+ //else: get, already set above
+
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+
+ event.m_item = info->item.hItem;
+ break;
+ }
+
+ case TVN_ITEMEXPANDING:
+ case TVN_ITEMEXPANDED:
+ {
+ NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
+
+ int what;
+ switch ( tv->action )
+ {
+ default:
+ wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND message"), tv->action);
+ // fall through
+
+ case TVE_EXPAND:
+ what = IDX_EXPAND;
+ break;
+
+ case TVE_COLLAPSE:
+ what = IDX_COLLAPSE;
+ break;
+ }
+
+ int how = hdr->code == TVN_ITEMEXPANDING ? IDX_DOING
+ : IDX_DONE;
+
+ eventType = gs_expandEvents[what][how];
+
+ event.m_item = tv->itemNew.hItem;
+ }
+ break;
+
+ case TVN_KEYDOWN:
+ {
+ eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
+ TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
+
+ // fabricate the lParam and wParam parameters sufficiently
+ // similar to the ones from a "real" WM_KEYDOWN so that
+ // CreateKeyEvent() works correctly
+ WXLPARAM lParam =
+ (::GetKeyState(VK_MENU) < 0 ? KF_ALTDOWN : 0) << 16;
+
+ WXWPARAM wParam = info->wVKey;
+
+ int keyCode = wxCharCodeMSWToWX(info->wVKey);
+ if ( !keyCode )
+ {
+ // wxCharCodeMSWToWX() returns 0 to indicate that this is a
+ // simple ASCII key
+ keyCode = wParam;
+ }
+
+ event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
+ keyCode,
+ lParam,
+ wParam);
+
+ // a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() &&
+ ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
+ {
+ wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+ m_windowId);
+ event2.SetEventObject(this);
+ if ( !(GetWindowStyle() & wxTR_MULTIPLE) )
+ {
+ event2.m_item = GetSelection();
+ }
+ //else: don't know how to get it
+
+ (void)GetEventHandler()->ProcessEvent(event2);
+ }
+ }
+ break;
+
+ // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of
+ // TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
+ // we have to handle both messages:
+ case TVN_SELCHANGEDA:
+ case TVN_SELCHANGEDW:
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ // fall through
+
+ case TVN_SELCHANGINGA:
+ case TVN_SELCHANGINGW:
+ {
+ if ( eventType == wxEVT_NULL )
+ eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
+ //else: already set above
+
+ if (hdr->code == TVN_SELCHANGINGW ||
+ hdr->code == TVN_SELCHANGEDW)
+ {
+ NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam;
+ event.m_item = tv->itemNew.hItem;
+ event.m_itemOld = tv->itemOld.hItem;
+ }
+ else
+ {
+ NM_TREEVIEWA* tv = (NM_TREEVIEWA *)lParam;
+ event.m_item = tv->itemNew.hItem;
+ event.m_itemOld = tv->itemOld.hItem;
+ }
+ }
+ break;
+
+ // instead of explicitly checking for _WIN32_IE, check if the
+ // required symbols are available in the headers
+#if defined(CDDS_PREPAINT) && !wxUSE_COMCTL32_SAFELY
+ case NM_CUSTOMDRAW:
+ {
+ LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam;
+ NMCUSTOMDRAW& nmcd = lptvcd->nmcd;
+ switch ( nmcd.dwDrawStage )
+ {
+ case CDDS_PREPAINT:
+ // if we've got any items with non standard attributes,
+ // notify us before painting each item
+ *result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
+ : CDRF_DODEFAULT;
+ break;
+
+ case CDDS_ITEMPREPAINT:
+ {
+ wxMapTreeAttr::iterator
+ it = m_attrs.find((void *)nmcd.dwItemSpec);
+
+ if ( it == m_attrs.end() )
+ {
+ // nothing to do for this item
+ *result = CDRF_DODEFAULT;
+ break;
+ }
+
+ wxTreeItemAttr * const attr = it->second;
+
+ HFONT hFont;
+ if ( attr->HasFont() )
+ {
+ hFont = GetHfontOf(attr->GetFont());
+ }
+ else
+ {
+ hFont = 0;
+ }
+
+ wxColour colText;
+ if ( attr->HasTextColour() )
+ {
+ colText = attr->GetTextColour();
+ }
+ else
+ {
+ colText = GetForegroundColour();
+ }
+
+ // selection colours should override ours
+ if ( nmcd.uItemState & CDIS_SELECTED )
+ {
+ lptvcd->clrTextBk =
+ ::GetSysColor(COLOR_HIGHLIGHT);
+ lptvcd->clrText =
+ ::GetSysColor(COLOR_HIGHLIGHTTEXT);
+ }
+ else // !selected
+ {
+ wxColour colBack;
+ if ( attr->HasBackgroundColour() )
+ {
+ colBack = attr->GetBackgroundColour();
+ }
+ else
+ {
+ colBack = GetBackgroundColour();
+ }
+
+ lptvcd->clrText = wxColourToRGB(colText);
+ lptvcd->clrTextBk = wxColourToRGB(colBack);
+ }
+
+ // note that if we wanted to set colours for
+ // individual columns (subitems), we would have
+ // returned CDRF_NOTIFYSUBITEMREDRAW from here
+ if ( hFont )
+ {
+ ::SelectObject(nmcd.hdc, hFont);
+
+ *result = CDRF_NEWFONT;
+ }
+ else
+ {
+ *result = CDRF_DODEFAULT;
+ }
+ }
+ break;
+
+ default:
+ *result = CDRF_DODEFAULT;
+ }
+ }
+
+ // we always process it
+ return true;
+#endif // have owner drawn support in headers
+
+ case NM_CLICK:
+ {
+ DWORD pos = GetMessagePos();
+ POINT point;
+ point.x = LOWORD(pos);
+ point.y = HIWORD(pos);
+ ::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1);
+ int flags = 0;
+ wxTreeItemId item = HitTest(wxPoint(point.x, point.y), flags);
+ if (flags & wxTREE_HITTEST_ONITEMSTATEICON)
+ {
+ event.m_item = item;
+ eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
+ }
+ break;
+ }
+
+ case NM_DBLCLK:
+ case NM_RCLICK:
+ {
+ TV_HITTESTINFO tvhti;
+ ::GetCursorPos(&tvhti.pt);
+ ::ScreenToClient(GetHwnd(), &tvhti.pt);
+ if ( TreeView_HitTest(GetHwnd(), &tvhti) )
+ {
+ if ( tvhti.flags & TVHT_ONITEM )
+ {
+ event.m_item = tvhti.hItem;
+ eventType = (int)hdr->code == NM_DBLCLK
+ ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+ : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
+
+ event.m_pointDrag.x = tvhti.pt.x;
+ event.m_pointDrag.y = tvhti.pt.y;
+ }
+
+ break;
+ }
+ }
+ // fall through
+
+ default:
+ return wxControl::MSWOnNotify(idCtrl, lParam, result);
+ }
+
+ event.SetEventObject(this);
+ event.SetEventType(eventType);
+
+ bool processed = GetEventHandler()->ProcessEvent(event);
+
+ // post processing
+ switch ( hdr->code )
+ {
+ case NM_DBLCLK:
+ // we translate NM_DBLCLK into ACTIVATED event, so don't interpret
+ // the return code of this event handler as the return value for
+ // NM_DBLCLK - otherwise, double clicking the item to toggle its
+ // expanded status would never work
+ *result = false;
+ break;
+
+ case TVN_BEGINDRAG:
+ case TVN_BEGINRDRAG:
+ if ( event.IsAllowed() )
+ {
+ // normally this is impossible because the m_dragImage is
+ // deleted once the drag operation is over
+ wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") );
+
+ m_dragImage = new wxDragImage(*this, event.m_item);
+ m_dragImage->BeginDrag(wxPoint(0, 0), this);
+ m_dragImage->Show();
+ }
+ break;
+
+ case TVN_DELETEITEM:
+ {
+ // NB: we might process this message using wxWindows event
+ // tables, but due to overhead of wxWin event system we
+ // prefer to do it here ourself (otherwise deleting a tree
+ // with many items is just too slow)
+ NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+
+ wxTreeItemId item = event.m_item;
+ if ( HasIndirectData(item) )
+ {
+ wxTreeItemIndirectData *data = (wxTreeItemIndirectData *)
+ tv->itemOld.lParam;
+ delete data; // can't be NULL here
+ }
+ else
+ {
+ wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam;
+ delete data; // may be NULL, ok
+ }
+
+ processed = true; // Make sure we don't get called twice
+ }
+ break;
+
+ case TVN_BEGINLABELEDIT:
+ // return true to cancel label editing
+ *result = !event.IsAllowed();
+ // set ES_WANTRETURN ( like we do in BeginLabelEdit )
+ if(event.IsAllowed())
+ {
+ HWND hText = TreeView_GetEditControl(GetHwnd());
+ if(hText != NULL)
+ {
+ // MBN: if m_textCtrl already has an HWND, it is a stale
+ // pointer from a previous edit (because the user
+ // didn't modify the label before dismissing the control,
+ // and TVN_ENDLABELEDIT was not sent), so delete it
+ if(m_textCtrl && m_textCtrl->GetHWND() != 0)
+ DeleteTextCtrl();
+ if(!m_textCtrl)
+ m_textCtrl = new wxTextCtrl();
+ m_textCtrl->SetParent(this);
+ m_textCtrl->SetHWND((WXHWND)hText);
+ m_textCtrl->SubclassWin((WXHWND)hText);
+
+ // set wxTE_PROCESS_ENTER style for the text control to
+ // force it to process the Enter presses itself, otherwise
+ // they could be stolen from it by the dialog
+ // navigation code
+ m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle()
+ | wxTE_PROCESS_ENTER);
+ }
+ }
+ break;
+
+ case TVN_ENDLABELEDIT:
+ // return true to set the label to the new string: note that we
+ // also must pretend that we did process the message or it is going
+ // to be passed to DefWindowProc() which will happily return false
+ // cancelling the label change
+ *result = event.IsAllowed();
+ processed = true;
+
+ // ensure that we don't have the text ctrl which is going to be
+ // deleted any more
+ DeleteTextCtrl();
+ break;
+
+ case TVN_SELCHANGING:
+ case TVN_ITEMEXPANDING:
+ // return true to prevent the action from happening
+ *result = !event.IsAllowed();
+ break;
+
+ case TVN_ITEMEXPANDED:
+ // the item is not refreshed properly after expansion when it has
+ // an image depending on the expanded/collapsed state - bug in
+ // comctl32.dll or our code?
+ {
+ NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+ wxTreeItemId id(tv->itemNew.hItem);
+
+ int image = GetItemImage(id, wxTreeItemIcon_Expanded);
+ if ( image != -1 )
+ {
+ RefreshItem(id);
+ }
+ }
+ break;
+
+ case TVN_GETDISPINFO:
+ // NB: so far the user can't set the image himself anyhow, so do it
+ // anyway - but this may change later
+ //if ( /* !processed && */ 1 )
+ {
+ wxTreeItemId item = event.m_item;
+ TV_DISPINFO *info = (TV_DISPINFO *)lParam;
+ if ( info->item.mask & TVIF_IMAGE )
+ {
+ info->item.iImage =
+ DoGetItemImageFromData
+ (
+ item,
+ IsExpanded(item) ? wxTreeItemIcon_Expanded
+ : wxTreeItemIcon_Normal
+ );
+ }
+ if ( info->item.mask & TVIF_SELECTEDIMAGE )
+ {
+ info->item.iSelectedImage =
+ DoGetItemImageFromData
+ (
+ item,
+ IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
+ : wxTreeItemIcon_Selected
+ );
+ }
+ }
+ break;
+
+ //default:
+ // for the other messages the return value is ignored and there is
+ // nothing special to do
+ }
+ return processed;
+}
+
+// ----------------------------------------------------------------------------
+// State control.
+// ----------------------------------------------------------------------------
+
+// why do they define INDEXTOSTATEIMAGEMASK but not the inverse?
+#define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12)
+
+void wxTreeCtrl::SetState(const wxTreeItemId& node, int state)
+{
+ TV_ITEM tvi;
+ tvi.hItem = (HTREEITEM)node.m_pItem;
+ tvi.mask = TVIF_STATE;
+ tvi.stateMask = TVIS_STATEIMAGEMASK;
+
+ // Select the specified state, or -1 == cycle to the next one.
+ if ( state == -1 )
+ {
+ TreeView_GetItem(GetHwnd(), &tvi);
+
+ state = STATEIMAGEMASKTOINDEX(tvi.state) + 1;
+ if ( state == m_imageListState->GetImageCount() )
+ state = 1;
+ }
+
+ wxCHECK_RET( state < m_imageListState->GetImageCount(),
+ _T("wxTreeCtrl::SetState(): item index out of bounds") );
+
+ tvi.state = INDEXTOSTATEIMAGEMASK(state);
+
+ TreeView_SetItem(GetHwnd(), &tvi);
+}
+
+int wxTreeCtrl::GetState(const wxTreeItemId& node)
+{
+ TV_ITEM tvi;
+ tvi.hItem = (HTREEITEM)node.m_pItem;
+ tvi.mask = TVIF_STATE;
+ tvi.stateMask = TVIS_STATEIMAGEMASK;
+ TreeView_GetItem(GetHwnd(), &tvi);
+
+ return STATEIMAGEMASKTOINDEX(tvi.state);
+}
+
+#endif // wxUSE_TREECTRL
projects / wxWidgets.git / blobdiff