a20a10fe1d
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6046 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1934 lines
57 KiB
C++
1934 lines
57 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: treectrl.cpp
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// Purpose: wxTreeCtrl
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// Author: Julian Smart
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// Modified by: Vadim Zeitlin to be less MSW-specific on 10.10.98
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// Created: 1997
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma implementation "treectrl.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/msw/private.h"
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// Mingw32 is a bit mental even though this is done in winundef
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#ifdef GetFirstChild
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#undef GetFirstChild
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#endif
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#ifdef GetNextSibling
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#undef GetNextSibling
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#endif
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#if defined(__WIN95__)
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#include "wx/log.h"
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#include "wx/dynarray.h"
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#include "wx/imaglist.h"
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#include "wx/treectrl.h"
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#include "wx/settings.h"
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#include "wx/msw/dragimag.h"
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#ifdef __GNUWIN32_OLD__
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#include "wx/msw/gnuwin32/extra.h"
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#endif
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#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) || defined(__TWIN32__))
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#include <commctrl.h>
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#endif
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// Bug in headers, sometimes
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#ifndef TVIS_FOCUSED
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#define TVIS_FOCUSED 0x0001
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#endif
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#ifndef TV_FIRST
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#define TV_FIRST 0x1100
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#endif
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// old headers might miss these messages (comctl32.dll 4.71+ only)
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#ifndef TVM_SETBKCOLOR
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#define TVM_SETBKCOLOR (TV_FIRST + 29)
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#define TVM_SETTEXTCOLOR (TV_FIRST + 30)
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#endif
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// a convenient wrapper around TV_ITEM struct which adds a ctor
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#ifdef __VISUALC__
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#pragma warning( disable : 4097 )
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#endif
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struct wxTreeViewItem : public TV_ITEM
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{
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wxTreeViewItem(const wxTreeItemId& item, // the item handle
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UINT mask_, // fields which are valid
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UINT stateMask_ = 0) // for TVIF_STATE only
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{
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// hItem member is always valid
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mask = mask_ | TVIF_HANDLE;
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stateMask = stateMask_;
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hItem = (HTREEITEM) (WXHTREEITEM) item;
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}
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};
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#ifdef __VISUALC__
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#pragma warning( default : 4097 )
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#endif
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// a class which encapsulates the tree traversal logic: it vists all (unless
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// OnVisit() returns FALSE) items under the given one
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class wxTreeTraversal
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{
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public:
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wxTreeTraversal(const wxTreeCtrl *tree)
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{
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m_tree = tree;
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}
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// do traverse the tree: visit all items (recursively by default) under the
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// given one; return TRUE if all items were traversed or FALSE if the
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// traversal was aborted because OnVisit returned FALSE
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bool DoTraverse(const wxTreeItemId& root, bool recursively = TRUE);
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// override this function to do whatever is needed for each item, return
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// FALSE to stop traversing
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virtual bool OnVisit(const wxTreeItemId& item) = 0;
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protected:
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const wxTreeCtrl *GetTree() const { return m_tree; }
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private:
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bool Traverse(const wxTreeItemId& root, bool recursively);
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const wxTreeCtrl *m_tree;
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};
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// internal class for getting the selected items
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class TraverseSelections : public wxTreeTraversal
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{
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public:
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TraverseSelections(const wxTreeCtrl *tree,
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wxArrayTreeItemIds& selections)
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: wxTreeTraversal(tree), m_selections(selections)
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{
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m_selections.Empty();
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DoTraverse(tree->GetRootItem());
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}
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virtual bool OnVisit(const wxTreeItemId& item)
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{
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if ( GetTree()->IsItemChecked(item) )
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{
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m_selections.Add(item);
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}
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return TRUE;
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}
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size_t GetCount() const { return m_selections.GetCount(); }
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private:
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wxArrayTreeItemIds& m_selections;
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};
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// internal class for counting tree items
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class TraverseCounter : public wxTreeTraversal
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{
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public:
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TraverseCounter(const wxTreeCtrl *tree,
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const wxTreeItemId& root,
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bool recursively)
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: wxTreeTraversal(tree)
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{
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m_count = 0;
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DoTraverse(root, recursively);
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}
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virtual bool OnVisit(const wxTreeItemId& item)
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{
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m_count++;
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return TRUE;
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}
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size_t GetCount() const { return m_count; }
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private:
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size_t m_count;
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};
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// ----------------------------------------------------------------------------
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// This class is needed for support of different images: the Win32 common
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// control natively supports only 2 images (the normal one and another for the
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// selected state). We wish to provide support for 2 more of them for folder
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// items (i.e. those which have children): for expanded state and for expanded
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// selected state. For this we use this structure to store the additional items
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// images.
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//
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// There is only one problem with this: when we retrieve the item's data, we
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// don't know whether we get a pointer to wxTreeItemData or
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// wxTreeItemIndirectData. So we have to maintain a list of all items which
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// have indirect data inside the listctrl itself.
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// ----------------------------------------------------------------------------
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class wxTreeItemIndirectData
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{
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public:
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// ctor associates this data with the item and the real item data becomes
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// available through our GetData() method
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wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item)
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{
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for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
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{
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m_images[n] = -1;
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}
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// save the old data
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m_data = tree->GetItemData(item);
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// and set ourselves as the new one
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tree->SetIndirectItemData(item, this);
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}
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// dtor deletes the associated data as well
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~wxTreeItemIndirectData() { delete m_data; }
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// accessors
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// get the real data associated with the item
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wxTreeItemData *GetData() const { return m_data; }
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// change it
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void SetData(wxTreeItemData *data) { m_data = data; }
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// do we have such image?
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bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
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// get image
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int GetImage(wxTreeItemIcon which) const { return m_images[which]; }
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// change it
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void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
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private:
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// all the images associated with the item
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int m_images[wxTreeItemIcon_Max];
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wxTreeItemData *m_data;
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};
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y)
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{
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TV_HITTESTINFO tvht;
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tvht.pt.x = x;
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tvht.pt.y = y;
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return TreeView_HitTest(hwndTV, &tvht);
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}
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
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// ----------------------------------------------------------------------------
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// variables
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// ----------------------------------------------------------------------------
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// handy table for sending events
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static const wxEventType g_events[2][2] =
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{
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{ wxEVT_COMMAND_TREE_ITEM_COLLAPSED, wxEVT_COMMAND_TREE_ITEM_COLLAPSING },
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{ wxEVT_COMMAND_TREE_ITEM_EXPANDED, wxEVT_COMMAND_TREE_ITEM_EXPANDING }
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};
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// tree traversal
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// ----------------------------------------------------------------------------
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bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively)
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{
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if ( !OnVisit(root) )
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return FALSE;
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return Traverse(root, recursively);
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}
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bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
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{
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long cookie;
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wxTreeItemId child = m_tree->GetFirstChild(root, cookie);
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while ( child.IsOk() )
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{
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// depth first traversal
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if ( recursively && !Traverse(child, TRUE) )
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return FALSE;
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if ( !OnVisit(child) )
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return FALSE;
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child = m_tree->GetNextChild(root, cookie);
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}
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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// construction and destruction
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// ----------------------------------------------------------------------------
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void wxTreeCtrl::Init()
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{
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m_imageListNormal = NULL;
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m_imageListState = NULL;
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m_textCtrl = NULL;
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m_hasAnyAttr = FALSE;
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m_dragImage = NULL;
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}
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bool wxTreeCtrl::Create(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& validator,
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const wxString& name)
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{
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Init();
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if ( !CreateControl(parent, id, pos, size, style, validator, name) )
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return FALSE;
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DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
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TVS_HASLINES | TVS_SHOWSELALWAYS;
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if ( m_windowStyle & wxTR_HAS_BUTTONS )
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wstyle |= TVS_HASBUTTONS;
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if ( m_windowStyle & wxTR_EDIT_LABELS )
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wstyle |= TVS_EDITLABELS;
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if ( m_windowStyle & wxTR_LINES_AT_ROOT )
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wstyle |= TVS_LINESATROOT;
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#if !defined( __GNUWIN32_OLD__ ) && \
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!defined( __BORLANDC__ ) && \
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!defined( __WATCOMC__ ) && \
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(!defined(__VISUALC__) || (__VISUALC__ > 1010))
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#ifndef TVS_CHECKBOXES
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#define TVS_CHECKBOXES 0x0100
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#endif
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// we emulate the multiple selection tree controls by using checkboxes: set
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// up the image list we need for this if we do have multiple selections
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if ( m_windowStyle & wxTR_MULTIPLE )
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wstyle |= TVS_CHECKBOXES;
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#endif
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// Create the tree control.
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if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
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return FALSE;
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SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
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SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
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// VZ: this is some experimental code which may be used to get the
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// TVS_CHECKBOXES style functionality for comctl32.dll < 4.71.
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// AFAIK, the standard DLL does about the same thing anyhow.
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#if 0
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if ( m_windowStyle & wxTR_MULTIPLE )
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{
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wxBitmap bmp;
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// create the DC compatible with the current screen
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HDC hdcMem = CreateCompatibleDC(NULL);
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// create a mono bitmap of the standard size
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int x = GetSystemMetrics(SM_CXMENUCHECK);
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int y = GetSystemMetrics(SM_CYMENUCHECK);
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wxImageList imagelistCheckboxes(x, y, FALSE, 2);
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HBITMAP hbmpCheck = CreateBitmap(x, y, // bitmap size
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1, // # of color planes
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1, // # bits needed for one pixel
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0); // array containing colour data
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SelectObject(hdcMem, hbmpCheck);
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// then draw a check mark into it
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RECT rect = { 0, 0, x, y };
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if ( !::DrawFrameControl(hdcMem, &rect,
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DFC_BUTTON,
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DFCS_BUTTONCHECK | DFCS_CHECKED) )
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{
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wxLogLastError(wxT("DrawFrameControl(check)"));
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}
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bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
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imagelistCheckboxes.Add(bmp);
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if ( !::DrawFrameControl(hdcMem, &rect,
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DFC_BUTTON,
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DFCS_BUTTONCHECK) )
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{
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wxLogLastError(wxT("DrawFrameControl(uncheck)"));
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}
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bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
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imagelistCheckboxes.Add(bmp);
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// clean up
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::DeleteDC(hdcMem);
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// set the imagelist
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SetStateImageList(&imagelistCheckboxes);
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}
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#endif // 0
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SetSize(pos.x, pos.y, size.x, size.y);
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return TRUE;
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}
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wxTreeCtrl::~wxTreeCtrl()
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{
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// delete any attributes
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if ( m_hasAnyAttr )
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{
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for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() )
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{
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delete (wxTreeItemAttr *)node->Data();
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}
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// prevent TVN_DELETEITEM handler from deleting the attributes again!
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m_hasAnyAttr = FALSE;
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}
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DeleteTextCtrl();
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// delete user data to prevent memory leaks
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DeleteAllItems();
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}
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// ----------------------------------------------------------------------------
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// accessors
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// ----------------------------------------------------------------------------
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// simple wrappers which add error checking in debug mode
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bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
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{
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if ( !TreeView_GetItem(GetHwnd(), tvItem) )
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{
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wxLogLastError("TreeView_GetItem");
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return FALSE;
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}
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return TRUE;
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}
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void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem)
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{
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if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
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{
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wxLogLastError("TreeView_SetItem");
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}
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}
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size_t wxTreeCtrl::GetCount() const
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{
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return (size_t)TreeView_GetCount(GetHwnd());
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}
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unsigned int wxTreeCtrl::GetIndent() const
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{
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return TreeView_GetIndent(GetHwnd());
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}
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void wxTreeCtrl::SetIndent(unsigned int indent)
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{
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TreeView_SetIndent(GetHwnd(), indent);
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}
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wxImageList *wxTreeCtrl::GetImageList() const
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{
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return m_imageListNormal;
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}
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wxImageList *wxTreeCtrl::GetStateImageList() const
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{
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return m_imageListNormal;
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}
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void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
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{
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// no error return
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TreeView_SetImageList(GetHwnd(),
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imageList ? imageList->GetHIMAGELIST() : 0,
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which);
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}
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void wxTreeCtrl::SetImageList(wxImageList *imageList)
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{
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SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);
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}
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void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
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{
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SetAnyImageList(m_imageListState = imageList, TVSIL_STATE);
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}
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size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
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bool recursively) const
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{
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TraverseCounter counter(this, item, recursively);
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return counter.GetCount() - 1;
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}
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// ----------------------------------------------------------------------------
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// control colours
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// ----------------------------------------------------------------------------
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bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour)
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{
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if ( !wxWindowBase::SetBackgroundColour(colour) )
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return FALSE;
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SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel());
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return TRUE;
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}
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bool wxTreeCtrl::SetForegroundColour(const wxColour &colour)
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{
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if ( !wxWindowBase::SetForegroundColour(colour) )
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return FALSE;
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SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel());
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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// Item access
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// ----------------------------------------------------------------------------
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wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
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{
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wxChar buf[512]; // the size is arbitrary...
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wxTreeViewItem tvItem(item, TVIF_TEXT);
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tvItem.pszText = buf;
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tvItem.cchTextMax = WXSIZEOF(buf);
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if ( !DoGetItem(&tvItem) )
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{
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// don't return some garbage which was on stack, but an empty string
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buf[0] = wxT('\0');
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}
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return wxString(buf);
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}
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void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
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{
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wxTreeViewItem tvItem(item, TVIF_TEXT);
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tvItem.pszText = (wxChar *)text.c_str(); // conversion is ok
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DoSetItem(&tvItem);
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}
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int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item,
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wxTreeItemIcon which) const
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{
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wxTreeViewItem tvItem(item, TVIF_PARAM);
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if ( !DoGetItem(&tvItem) )
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{
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return -1;
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}
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|
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return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which);
|
|
}
|
|
|
|
void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item,
|
|
int image,
|
|
wxTreeItemIcon which) const
|
|
{
|
|
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);
|
|
}
|
|
|
|
if ( which == wxTreeItemIcon_Expanded &&
|
|
!data->HasImage(wxTreeItemIcon_SelectedExpanded) )
|
|
{
|
|
data->SetImage(image, wxTreeItemIcon_SelectedExpanded);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
|
|
wxTreeItemIcon which) const
|
|
{
|
|
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;
|
|
}
|
|
|
|
wxTreeViewItem tvItem(item, mask);
|
|
DoGetItem(&tvItem);
|
|
|
|
return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage;
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
|
|
wxTreeItemIcon which)
|
|
{
|
|
int imageNormal, imageSel;
|
|
switch ( which )
|
|
{
|
|
default:
|
|
wxFAIL_MSG( wxT("unknown tree item image type") );
|
|
|
|
case wxTreeItemIcon_Normal:
|
|
imageNormal = image;
|
|
imageSel = GetItemSelectedImage(item);
|
|
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 = GetItemSelectedImage(item);
|
|
|
|
// 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;
|
|
}
|
|
|
|
// 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);
|
|
}
|
|
|
|
wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
|
|
{
|
|
wxTreeViewItem tvItem(item, TVIF_PARAM);
|
|
if ( !DoGetItem(&tvItem) )
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if ( HasIndirectData(item) )
|
|
{
|
|
return ((wxTreeItemIndirectData *)tvItem.lParam)->GetData();
|
|
}
|
|
else
|
|
{
|
|
return (wxTreeItemData *)tvItem.lParam;
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
|
|
{
|
|
wxTreeViewItem tvItem(item, TVIF_PARAM);
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item,
|
|
wxTreeItemIndirectData *data)
|
|
{
|
|
// 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, (wxTreeItemData *)data);
|
|
|
|
m_itemsWithIndirectData.Add(item);
|
|
}
|
|
|
|
bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
|
|
{
|
|
return m_itemsWithIndirectData.Index(item) != wxNOT_FOUND;
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
|
|
{
|
|
wxTreeViewItem tvItem(item, TVIF_CHILDREN);
|
|
tvItem.cChildren = (int)has;
|
|
DoSetItem(&tvItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
|
|
{
|
|
wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
|
|
tvItem.state = bold ? TVIS_BOLD : 0;
|
|
DoSetItem(&tvItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
|
|
{
|
|
wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED);
|
|
tvItem.state = highlight ? TVIS_DROPHILITED : 0;
|
|
DoSetItem(&tvItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
|
|
const wxColour& col)
|
|
{
|
|
m_hasAnyAttr = TRUE;
|
|
|
|
long id = (long)(WXHTREEITEM)item;
|
|
wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
|
|
if ( !attr )
|
|
{
|
|
attr = new wxTreeItemAttr;
|
|
m_attrs.Put(id, (wxObject *)attr);
|
|
}
|
|
|
|
attr->SetTextColour(col);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
|
|
const wxColour& col)
|
|
{
|
|
m_hasAnyAttr = TRUE;
|
|
|
|
long id = (long)(WXHTREEITEM)item;
|
|
wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
|
|
if ( !attr )
|
|
{
|
|
attr = new wxTreeItemAttr;
|
|
m_attrs.Put(id, (wxObject *)attr);
|
|
}
|
|
|
|
attr->SetBackgroundColour(col);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
|
|
{
|
|
m_hasAnyAttr = TRUE;
|
|
|
|
long id = (long)(WXHTREEITEM)item;
|
|
wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
|
|
if ( !attr )
|
|
{
|
|
attr = new wxTreeItemAttr;
|
|
m_attrs.Put(id, (wxObject *)attr);
|
|
}
|
|
|
|
attr->SetFont(font);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Item status
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
|
|
{
|
|
// Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
|
|
RECT rect;
|
|
|
|
// this ugliness comes directly from MSDN - it *is* the correct way to pass
|
|
// the HTREEITEM with TVM_GETITEMRECT
|
|
*(WXHTREEITEM *)&rect = (WXHTREEITEM)item;
|
|
|
|
// FALSE means get item rect for the whole item, not only text
|
|
return SendMessage(GetHwnd(), TVM_GETITEMRECT, FALSE, (LPARAM)&rect) != 0;
|
|
|
|
}
|
|
|
|
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
|
|
{
|
|
return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetSelection() const
|
|
{
|
|
wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (WXHTREEITEM)0,
|
|
wxT("this only works with single selection controls") );
|
|
|
|
return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd()));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
|
|
{
|
|
return wxTreeItemId((WXHTREEITEM) TreeView_GetParent(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
|
|
long& _cookie) const
|
|
{
|
|
// remember the last child returned in 'cookie'
|
|
_cookie = (long)TreeView_GetChild(GetHwnd(), (HTREEITEM) (WXHTREEITEM)item);
|
|
|
|
return wxTreeItemId((WXHTREEITEM)_cookie);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
|
|
long& _cookie) const
|
|
{
|
|
wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(),
|
|
(HTREEITEM)(WXHTREEITEM)_cookie));
|
|
_cookie = (long)l;
|
|
|
|
return l;
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
|
|
{
|
|
// can this be done more efficiently?
|
|
long 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((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
|
|
{
|
|
return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
|
|
{
|
|
return wxTreeItemId((WXHTREEITEM) 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((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) 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((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) 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);
|
|
|
|
// 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)
|
|
{
|
|
TV_INSERTSTRUCT tvIns;
|
|
tvIns.hParent = (HTREEITEM) (WXHTREEITEM)parent;
|
|
tvIns.hInsertAfter = (HTREEITEM) (WXHTREEITEM) 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
|
|
}
|
|
|
|
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("TreeView_InsertItem");
|
|
}
|
|
|
|
if ( data != NULL )
|
|
{
|
|
// associate the application tree item with Win32 tree item handle
|
|
data->SetId((WXHTREEITEM)id);
|
|
}
|
|
|
|
return wxTreeItemId((WXHTREEITEM)id);
|
|
}
|
|
|
|
// for compatibility only
|
|
wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
long insertAfter)
|
|
{
|
|
return DoInsertItem(parent, (WXHTREEITEM)insertAfter, text,
|
|
image, selImage, NULL);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
|
|
int image, int selectedImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
return DoInsertItem(wxTreeItemId((WXHTREEITEM) 0), (WXHTREEITEM) 0,
|
|
text, image, selectedImage, data);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
|
|
const wxString& text,
|
|
int image, int selectedImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
return DoInsertItem(parent, (WXHTREEITEM) 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
|
|
long 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, (WXHTREEITEM) TVI_LAST,
|
|
text, image, selectedImage, data);
|
|
}
|
|
|
|
void wxTreeCtrl::Delete(const wxTreeItemId& item)
|
|
{
|
|
if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)(WXHTREEITEM)item) )
|
|
{
|
|
wxLogLastError("TreeView_DeleteItem");
|
|
}
|
|
}
|
|
|
|
// delete all children (but don't delete the item itself)
|
|
void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
|
|
{
|
|
long cookie;
|
|
|
|
wxArrayLong children;
|
|
wxTreeItemId child = GetFirstChild(item, cookie);
|
|
while ( child.IsOk() )
|
|
{
|
|
children.Add((long)(WXHTREEITEM)child);
|
|
|
|
child = GetNextChild(item, cookie);
|
|
}
|
|
|
|
size_t nCount = children.Count();
|
|
for ( size_t n = 0; n < nCount; n++ )
|
|
{
|
|
if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) )
|
|
{
|
|
wxLogLastError("TreeView_DeleteItem");
|
|
}
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::DeleteAllItems()
|
|
{
|
|
if ( !TreeView_DeleteAllItems(GetHwnd()) )
|
|
{
|
|
wxLogLastError("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") );
|
|
|
|
// 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(), (HTREEITEM) (WXHTREEITEM) item, flag) != 0 )
|
|
{
|
|
wxTreeEvent event(wxEVT_NULL, m_windowId);
|
|
event.m_item = item;
|
|
|
|
bool isExpanded = IsExpanded(item);
|
|
|
|
event.SetEventObject(this);
|
|
|
|
// FIXME return value of {EXPAND|COLLAPS}ING event handler is discarded
|
|
event.SetEventType(g_events[isExpanded][TRUE]);
|
|
GetEventHandler()->ProcessEvent(event);
|
|
|
|
event.SetEventType(g_events[isExpanded][FALSE]);
|
|
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);
|
|
}
|
|
|
|
void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action)
|
|
{
|
|
DoExpand(item, action);
|
|
}
|
|
|
|
void wxTreeCtrl::Unselect()
|
|
{
|
|
wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxT("doesn't make sense") );
|
|
|
|
// just remove the selection
|
|
SelectItem(wxTreeItemId((WXHTREEITEM) 0));
|
|
}
|
|
|
|
void wxTreeCtrl::UnselectAll()
|
|
{
|
|
if ( m_windowStyle & wxTR_MULTIPLE )
|
|
{
|
|
wxArrayTreeItemIds selections;
|
|
size_t count = GetSelections(selections);
|
|
for ( size_t n = 0; n < count; n++ )
|
|
{
|
|
SetItemCheck(selections[n], FALSE);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// just remove the selection
|
|
Unselect();
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
|
|
{
|
|
if ( m_windowStyle & wxTR_MULTIPLE )
|
|
{
|
|
// selecting the item means checking it
|
|
SetItemCheck(item);
|
|
}
|
|
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(), (HTREEITEM) (WXHTREEITEM) item) )
|
|
{
|
|
wxLogLastError("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(), (HTREEITEM) (WXHTREEITEM) item);
|
|
}
|
|
|
|
void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
|
|
{
|
|
if ( !TreeView_SelectSetFirstVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item) )
|
|
{
|
|
wxLogLastError("TreeView_SelectSetFirstVisible");
|
|
}
|
|
}
|
|
|
|
wxTextCtrl* wxTreeCtrl::GetEditControl() const
|
|
{
|
|
return m_textCtrl;
|
|
}
|
|
|
|
void wxTreeCtrl::DeleteTextCtrl()
|
|
{
|
|
if ( m_textCtrl )
|
|
{
|
|
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)) );
|
|
|
|
HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item);
|
|
|
|
// this is not an error - the TVN_BEGINLABELEDIT handler might have
|
|
// returned FALSE
|
|
if ( !hWnd )
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
DeleteTextCtrl();
|
|
|
|
m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
|
|
m_textCtrl->SetHWND((WXHWND)hWnd);
|
|
m_textCtrl->SubclassWin((WXHWND)hWnd);
|
|
|
|
return m_textCtrl;
|
|
}
|
|
|
|
// End label editing, optionally cancelling the edit
|
|
void wxTreeCtrl::EndEditLabel(const wxTreeItemId& 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((WXHTREEITEM) hitTestInfo.hItem);
|
|
}
|
|
|
|
bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
|
|
wxRect& rect,
|
|
bool textOnly) const
|
|
{
|
|
RECT rc;
|
|
if ( TreeView_GetItemRect(GetHwnd(), (HTREEITEM)(WXHTREEITEM)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
|
|
// ----------------------------------------------------------------------------
|
|
|
|
static int CALLBACK TreeView_CompareCallback(wxTreeItemData *pItem1,
|
|
wxTreeItemData *pItem2,
|
|
wxTreeCtrl *tree)
|
|
{
|
|
wxCHECK_MSG( pItem1 && pItem2, 0,
|
|
wxT("sorting tree without data doesn't make sense") );
|
|
|
|
return tree->OnCompareItems(pItem1->GetId(), pItem2->GetId());
|
|
}
|
|
|
|
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(), (HTREEITEM)(WXHTREEITEM)item, 0);
|
|
}
|
|
else
|
|
{
|
|
TV_SORTCB tvSort;
|
|
tvSort.hParent = (HTREEITEM)(WXHTREEITEM)item;
|
|
tvSort.lpfnCompare = (PFNTVCOMPARE)TreeView_CompareCallback;
|
|
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)
|
|
{
|
|
if ( m_dragImage )
|
|
{
|
|
switch ( nMsg )
|
|
{
|
|
case WM_MOUSEMOVE:
|
|
{
|
|
int x = GET_X_LPARAM(lParam),
|
|
y = GET_Y_LPARAM(lParam);
|
|
|
|
m_dragImage->Move(wxPoint(x, y), this);
|
|
|
|
HTREEITEM htiTarget = GetItemFromPoint(GetHwnd(), x, y);
|
|
if ( htiTarget )
|
|
{
|
|
// highlight the item as target (hiding drag image is
|
|
// necessary - otherwise the display will be corrupted)
|
|
m_dragImage->Hide(this);
|
|
TreeView_SelectDropTarget(GetHwnd(), htiTarget);
|
|
m_dragImage->Show(this);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WM_LBUTTONUP:
|
|
case WM_RBUTTONUP:
|
|
{
|
|
m_dragImage->EndDrag(this);
|
|
delete m_dragImage;
|
|
m_dragImage = NULL;
|
|
|
|
// generate the drag end event
|
|
wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
|
|
|
|
int x = GET_X_LPARAM(lParam),
|
|
y = GET_Y_LPARAM(lParam);
|
|
|
|
event.m_item
|
|
= (WXHTREEITEM)GetItemFromPoint(GetHwnd(), x, y);
|
|
event.m_pointDrag = wxPoint(x, y);
|
|
event.SetEventObject(this);
|
|
|
|
(void)GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return wxControl::MSWWindowProc(nMsg, wParam, lParam);
|
|
}
|
|
|
|
// 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 NM_RCLICK:
|
|
{
|
|
if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
|
|
return TRUE;
|
|
|
|
TV_HITTESTINFO tvhti;
|
|
::GetCursorPos(&(tvhti.pt));
|
|
::ScreenToClient(GetHwnd(),&(tvhti.pt));
|
|
if ( TreeView_HitTest(GetHwnd(),&tvhti) )
|
|
{
|
|
if( tvhti.flags & TVHT_ONITEM )
|
|
{
|
|
event.m_item = (WXHTREEITEM) tvhti.hItem;
|
|
eventType = wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
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 = (WXHTREEITEM) 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 = (WXHTREEITEM) info->item.hItem;
|
|
event.m_label = info->item.pszText;
|
|
}
|
|
break;
|
|
|
|
case TVN_DELETEITEM:
|
|
{
|
|
eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
|
|
NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
|
|
|
|
event.m_item = (WXHTREEITEM)tv->itemOld.hItem;
|
|
|
|
if ( m_hasAnyAttr )
|
|
{
|
|
delete (wxTreeItemAttr *)m_attrs.
|
|
Delete((long)tv->itemOld.hItem);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TVN_ENDLABELEDIT:
|
|
{
|
|
eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
|
|
TV_DISPINFO *info = (TV_DISPINFO *)lParam;
|
|
|
|
event.m_item = (WXHTREEITEM)info->item.hItem;
|
|
event.m_label = info->item.pszText;
|
|
if (info->item.pszText == NULL)
|
|
return 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 = (WXHTREEITEM) info->item.hItem;
|
|
break;
|
|
}
|
|
|
|
case TVN_ITEMEXPANDING:
|
|
event.m_code = FALSE;
|
|
// fall through
|
|
|
|
case TVN_ITEMEXPANDED:
|
|
{
|
|
NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
|
|
|
|
bool expand = FALSE;
|
|
switch ( tv->action )
|
|
{
|
|
case TVE_EXPAND:
|
|
expand = TRUE;
|
|
break;
|
|
|
|
case TVE_COLLAPSE:
|
|
expand = FALSE;
|
|
break;
|
|
|
|
default:
|
|
wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND "
|
|
"message"), tv->action);
|
|
}
|
|
|
|
bool ing = ((int)hdr->code == TVN_ITEMEXPANDING);
|
|
eventType = g_events[expand][ing];
|
|
|
|
event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
|
|
}
|
|
break;
|
|
|
|
case TVN_KEYDOWN:
|
|
{
|
|
eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
|
|
TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
|
|
|
|
event.m_code = wxCharCodeMSWToWX(info->wVKey);
|
|
|
|
// a separate event for this case
|
|
if ( info->wVKey == VK_SPACE || info->wVKey == VK_RETURN )
|
|
{
|
|
wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
|
|
m_windowId);
|
|
event2.SetEventObject(this);
|
|
|
|
GetEventHandler()->ProcessEvent(event2);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TVN_SELCHANGED:
|
|
eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
|
|
// fall through
|
|
|
|
case TVN_SELCHANGING:
|
|
{
|
|
if ( eventType == wxEVT_NULL )
|
|
eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
|
|
//else: already set above
|
|
|
|
NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
|
|
|
|
event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
|
|
event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem;
|
|
}
|
|
break;
|
|
|
|
#if defined(_WIN32_IE) && _WIN32_IE >= 0x300
|
|
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;
|
|
return TRUE;
|
|
|
|
case CDDS_ITEMPREPAINT:
|
|
{
|
|
wxTreeItemAttr *attr =
|
|
(wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec);
|
|
|
|
if ( !attr )
|
|
{
|
|
// nothing to do for this item
|
|
return CDRF_DODEFAULT;
|
|
}
|
|
|
|
HFONT hFont;
|
|
wxColour colText, colBack;
|
|
if ( attr->HasFont() )
|
|
{
|
|
wxFont font = attr->GetFont();
|
|
hFont = (HFONT)font.GetResourceHandle();
|
|
}
|
|
else
|
|
{
|
|
hFont = 0;
|
|
}
|
|
|
|
if ( attr->HasTextColour() )
|
|
{
|
|
colText = attr->GetTextColour();
|
|
}
|
|
else
|
|
{
|
|
colText = GetForegroundColour();
|
|
}
|
|
|
|
// selection colours should override ours
|
|
if ( nmcd.uItemState & CDIS_SELECTED )
|
|
{
|
|
DWORD clrBk = ::GetSysColor(COLOR_HIGHLIGHT);
|
|
lptvcd->clrTextBk = clrBk;
|
|
|
|
// try to make the text visible
|
|
lptvcd->clrText = wxColourToRGB(colText);
|
|
lptvcd->clrText |= ~clrBk;
|
|
lptvcd->clrText &= 0x00ffffff;
|
|
}
|
|
else
|
|
{
|
|
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;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
default:
|
|
*result = CDRF_DODEFAULT;
|
|
return TRUE;
|
|
}
|
|
}
|
|
break;
|
|
#endif // _WIN32_IE >= 0x300
|
|
|
|
default:
|
|
return wxControl::MSWOnNotify(idCtrl, lParam, result);
|
|
}
|
|
|
|
event.SetEventObject(this);
|
|
event.SetEventType(eventType);
|
|
|
|
bool processed = GetEventHandler()->ProcessEvent(event);
|
|
|
|
// post processing
|
|
switch ( hdr->code )
|
|
{
|
|
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(this);
|
|
}
|
|
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
|
|
|
|
m_itemsWithIndirectData.Remove(item);
|
|
}
|
|
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();
|
|
break;
|
|
|
|
case TVN_ENDLABELEDIT:
|
|
// return TRUE to set the label to the new string
|
|
*result = event.IsAllowed();
|
|
|
|
// 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_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;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Tree event
|
|
// ----------------------------------------------------------------------------
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent)
|
|
|
|
wxTreeEvent::wxTreeEvent(wxEventType commandType, int id)
|
|
: wxNotifyEvent(commandType, id)
|
|
{
|
|
m_code = 0;
|
|
m_itemOld = 0;
|
|
}
|
|
|
|
#endif // __WIN95__
|
|
|