6f2a55e34a
2. added a macro WXUNUSED_UNLESS_DEBUG() git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5273 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2201 lines
59 KiB
C++
2201 lines
59 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: treectrl.cpp
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// Purpose: generic tree control implementation
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// Author: Robert Roebling
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// Created: 01/02/97
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// Modified: 22/10/98 - almost total rewrite, simpler interface (VZ)
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// Id: $Id$
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// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
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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/treectrl.h"
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#include "wx/generic/imaglist.h"
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#include "wx/settings.h"
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#include "wx/log.h"
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#include "wx/intl.h"
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#include "wx/dynarray.h"
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#include "wx/arrimpl.cpp"
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#include "wx/dcclient.h"
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#include "wx/msgdlg.h"
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// -----------------------------------------------------------------------------
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// array types
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// -----------------------------------------------------------------------------
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class WXDLLEXPORT wxGenericTreeItem;
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WX_DEFINE_ARRAY(wxGenericTreeItem *, wxArrayGenericTreeItems);
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WX_DEFINE_OBJARRAY(wxArrayTreeItemIds);
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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static const int NO_IMAGE = -1;
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// -----------------------------------------------------------------------------
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// private classes
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// -----------------------------------------------------------------------------
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// a tree item
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class WXDLLEXPORT wxGenericTreeItem
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{
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public:
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// ctors & dtor
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wxGenericTreeItem() { m_data = NULL; }
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wxGenericTreeItem( wxGenericTreeItem *parent,
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const wxString& text,
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wxDC& dc,
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int image, int selImage,
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wxTreeItemData *data );
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~wxGenericTreeItem();
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// trivial accessors
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wxArrayGenericTreeItems& GetChildren() { return m_children; }
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const wxString& GetText() const { return m_text; }
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int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const
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{ return m_images[which]; }
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wxTreeItemData *GetData() const { return m_data; }
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// returns the current image for the item (depending on its
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// selected/expanded/whatever state)
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int GetCurrentImage() const;
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void SetText( const wxString &text );
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void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
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void SetData(wxTreeItemData *data) { m_data = data; }
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void SetHasPlus(bool has = TRUE) { m_hasPlus = has; }
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void SetBold(bool bold) { m_isBold = bold; }
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int GetX() const { return m_x; }
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int GetY() const { return m_y; }
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void SetX(int x) { m_x = x; }
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void SetY(int y) { m_y = y; }
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int GetHeight() const { return m_height; }
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int GetWidth() const { return m_width; }
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void SetHeight(int h) { m_height = h; }
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void SetWidth(int w) { m_width = w; }
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wxGenericTreeItem *GetParent() const { return m_parent; }
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// operations
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// deletes all children notifying the treectrl about it if !NULL
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// pointer given
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void DeleteChildren(wxTreeCtrl *tree = NULL);
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// FIXME don't know what is it for
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void Reset();
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// get count of all children (and grand children if 'recursively')
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size_t GetChildrenCount(bool recursively = TRUE) const;
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void Insert(wxGenericTreeItem *child, size_t index)
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{ m_children.Insert(child, index); }
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void SetCross( int x, int y );
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void GetSize( int &x, int &y, const wxTreeCtrl* );
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// return the item at given position (or NULL if no item), onButton is
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// TRUE if the point belongs to the item's button, otherwise it lies
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// on the button's label
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wxGenericTreeItem *HitTest( const wxPoint& point, const wxTreeCtrl *, int &flags);
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void Expand() { m_isCollapsed = FALSE; }
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void Collapse() { m_isCollapsed = TRUE; }
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void SetHilight( bool set = TRUE ) { m_hasHilight = set; }
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// status inquiries
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bool HasChildren() const { return !m_children.IsEmpty(); }
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bool IsSelected() const { return m_hasHilight; }
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bool IsExpanded() const { return !m_isCollapsed; }
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bool HasPlus() const { return m_hasPlus || HasChildren(); }
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bool IsBold() const { return m_isBold; }
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// attributes
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// get them - may be NULL
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wxTreeItemAttr *GetAttributes() const { return m_attr; }
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// get them ensuring that the pointer is not NULL
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wxTreeItemAttr& Attr()
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{
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if ( !m_attr )
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m_attr = new wxTreeItemAttr;
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return *m_attr;
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}
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private:
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wxString m_text;
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// tree ctrl images for the normal, selected, expanded and
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// expanded+selected states
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int m_images[wxTreeItemIcon_Max];
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wxTreeItemData *m_data;
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// use bitfields to save size
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int m_isCollapsed :1;
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int m_hasHilight :1; // same as focused
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int m_hasPlus :1; // used for item which doesn't have
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// children but has a [+] button
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int m_isBold :1; // render the label in bold font
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wxCoord m_x, m_y;
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wxCoord m_height, m_width;
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int m_xCross, m_yCross;
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int m_level;
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wxArrayGenericTreeItems m_children;
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wxGenericTreeItem *m_parent;
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wxTreeItemAttr *m_attr;
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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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// wxTreeRenameTimer (internal)
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// -----------------------------------------------------------------------------
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wxTreeRenameTimer::wxTreeRenameTimer( wxTreeCtrl *owner )
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{
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m_owner = owner;
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}
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void wxTreeRenameTimer::Notify()
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{
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m_owner->OnRenameTimer();
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}
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//-----------------------------------------------------------------------------
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// wxTreeTextCtrl (internal)
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxTreeTextCtrl,wxTextCtrl);
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BEGIN_EVENT_TABLE(wxTreeTextCtrl,wxTextCtrl)
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EVT_CHAR (wxTreeTextCtrl::OnChar)
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EVT_KILL_FOCUS (wxTreeTextCtrl::OnKillFocus)
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END_EVENT_TABLE()
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wxTreeTextCtrl::wxTreeTextCtrl( wxWindow *parent, const wxWindowID id,
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bool *accept, wxString *res, wxTreeCtrl *owner,
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const wxString &value, const wxPoint &pos, const wxSize &size,
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#if wxUSE_VALIDATORS
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int style, const wxValidator& validator, const wxString &name ) :
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#endif
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wxTextCtrl( parent, id, value, pos, size, style, validator, name )
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{
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m_res = res;
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m_accept = accept;
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m_owner = owner;
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(*m_accept) = FALSE;
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(*m_res) = "";
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m_startValue = value;
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}
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void wxTreeTextCtrl::OnChar( wxKeyEvent &event )
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{
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if (event.m_keyCode == WXK_RETURN)
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{
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(*m_accept) = TRUE;
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(*m_res) = GetValue();
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m_owner->SetFocus();
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return;
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}
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if (event.m_keyCode == WXK_ESCAPE)
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{
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(*m_accept) = FALSE;
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(*m_res) = "";
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m_owner->SetFocus();
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return;
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}
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event.Skip();
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}
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void wxTreeTextCtrl::OnKillFocus( wxFocusEvent &WXUNUSED(event) )
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{
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if (wxPendingDelete.Member(this)) return;
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wxPendingDelete.Append(this);
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if ((*m_accept) && ((*m_res) != m_startValue))
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m_owner->OnRenameAccept();
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}
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#define PIXELS_PER_UNIT 10
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// -----------------------------------------------------------------------------
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// wxTreeEvent
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// -----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent)
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wxTreeEvent::wxTreeEvent( wxEventType commandType, int id )
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: wxNotifyEvent( commandType, id )
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{
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m_code = 0;
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m_itemOld = (wxGenericTreeItem *)NULL;
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}
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// -----------------------------------------------------------------------------
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// wxGenericTreeItem
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// -----------------------------------------------------------------------------
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wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent,
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const wxString& text,
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wxDC& WXUNUSED(dc),
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int image, int selImage,
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wxTreeItemData *data)
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: m_text(text)
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{
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m_images[wxTreeItemIcon_Normal] = image;
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m_images[wxTreeItemIcon_Selected] = selImage;
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m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
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m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;
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m_data = data;
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m_x = m_y = 0;
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m_xCross = m_yCross = 0;
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m_level = 0;
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m_isCollapsed = TRUE;
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m_hasHilight = FALSE;
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m_hasPlus = FALSE;
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m_isBold = FALSE;
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m_parent = parent;
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m_attr = (wxTreeItemAttr *)NULL;
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// We don't know the height here yet.
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m_width = 0;
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m_height = 0;
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}
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wxGenericTreeItem::~wxGenericTreeItem()
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{
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delete m_data;
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delete m_attr;
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wxASSERT_MSG( m_children.IsEmpty(),
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wxT("please call DeleteChildren() before deleting the item") );
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}
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void wxGenericTreeItem::DeleteChildren(wxTreeCtrl *tree)
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{
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size_t count = m_children.Count();
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for ( size_t n = 0; n < count; n++ )
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{
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wxGenericTreeItem *child = m_children[n];
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if (tree)
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tree->SendDeleteEvent(child);
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child->DeleteChildren(tree);
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delete child;
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}
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m_children.Empty();
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}
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void wxGenericTreeItem::SetText( const wxString &text )
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{
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m_text = text;
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}
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void wxGenericTreeItem::Reset()
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{
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m_text.Empty();
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for ( int i = 0; i < wxTreeItemIcon_Max; i++ )
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{
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m_images[i] = NO_IMAGE;
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}
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m_data = NULL;
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m_x = m_y =
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m_height = m_width = 0;
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m_xCross =
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m_yCross = 0;
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m_level = 0;
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DeleteChildren();
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m_isCollapsed = TRUE;
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m_parent = (wxGenericTreeItem *)NULL;
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}
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size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const
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{
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size_t count = m_children.Count();
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if ( !recursively )
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return count;
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size_t total = count;
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for (size_t n = 0; n < count; ++n)
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{
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total += m_children[n]->GetChildrenCount();
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}
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return total;
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}
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void wxGenericTreeItem::SetCross( int x, int y )
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{
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m_xCross = x;
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m_yCross = y;
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}
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void wxGenericTreeItem::GetSize( int &x, int &y, const wxTreeCtrl *theTree )
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{
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int bottomY=m_y+theTree->GetLineHeight(this);
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if ( y < bottomY ) y = bottomY;
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int width = m_x + m_width;
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if ( x < width ) x = width;
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if (IsExpanded())
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{
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size_t count = m_children.Count();
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for ( size_t n = 0; n < count; ++n )
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{
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m_children[n]->GetSize( x, y, theTree );
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}
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}
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}
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wxGenericTreeItem *wxGenericTreeItem::HitTest( const wxPoint& point,
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const wxTreeCtrl *theTree,
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int &flags)
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{
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if ((point.y > m_y) && (point.y < m_y + theTree->GetLineHeight(this)))
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{
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if (point.y<m_y+theTree->GetLineHeight(this)/2)
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flags |= wxTREE_HITTEST_ONITEMUPPERPART;
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else
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flags |= wxTREE_HITTEST_ONITEMLOWERPART;
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// 5 is the size of the plus sign
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if ((point.x > m_xCross-5) && (point.x < m_xCross+5) &&
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(point.y > m_yCross-5) && (point.y < m_yCross+5) &&
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(IsExpanded() || HasPlus()))
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{
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flags|=wxTREE_HITTEST_ONITEMBUTTON;
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return this;
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}
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if ((point.x >= m_x) && (point.x <= m_x+m_width))
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{
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int image_w = -1;
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int image_h;
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// assuming every image (normal and selected ) has the same size !
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if ( (GetImage() != NO_IMAGE) && theTree->m_imageListNormal )
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theTree->m_imageListNormal->GetSize(GetImage(), image_w, image_h);
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if ((image_w != -1) && (point.x <= m_x + image_w + 1))
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flags |= wxTREE_HITTEST_ONITEMICON;
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else
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flags |= wxTREE_HITTEST_ONITEMLABEL;
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return this;
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}
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if (point.x < m_x)
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flags |= wxTREE_HITTEST_ONITEMINDENT;
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if (point.x > m_x+m_width)
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flags |= wxTREE_HITTEST_ONITEMRIGHT;
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return this;
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}
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else
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{
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if (!m_isCollapsed)
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{
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size_t count = m_children.Count();
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for ( size_t n = 0; n < count; n++ )
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{
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wxGenericTreeItem *res = m_children[n]->HitTest( point, theTree, flags );
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if ( res != NULL )
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return res;
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}
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}
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}
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flags|=wxTREE_HITTEST_NOWHERE;
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return (wxGenericTreeItem*) NULL;
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}
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int wxGenericTreeItem::GetCurrentImage() const
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{
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int image = NO_IMAGE;
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if ( IsExpanded() )
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{
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if ( IsSelected() )
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{
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image = GetImage(wxTreeItemIcon_SelectedExpanded);
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}
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if ( image == NO_IMAGE )
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{
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// we usually fall back to the normal item, but try just the
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// expanded one (and not selected) first in this case
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image = GetImage(wxTreeItemIcon_Expanded);
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}
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}
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else // not expanded
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{
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if ( IsSelected() )
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image = GetImage(wxTreeItemIcon_Selected);
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}
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// may be it doesn't have the specific image we want, try the default one
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// instead
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if ( image == NO_IMAGE )
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{
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image = GetImage();
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}
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return image;
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}
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// -----------------------------------------------------------------------------
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// wxTreeCtrl implementation
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// -----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxScrolledWindow)
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BEGIN_EVENT_TABLE(wxTreeCtrl,wxScrolledWindow)
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EVT_PAINT (wxTreeCtrl::OnPaint)
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EVT_MOUSE_EVENTS (wxTreeCtrl::OnMouse)
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EVT_CHAR (wxTreeCtrl::OnChar)
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EVT_SET_FOCUS (wxTreeCtrl::OnSetFocus)
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EVT_KILL_FOCUS (wxTreeCtrl::OnKillFocus)
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EVT_IDLE (wxTreeCtrl::OnIdle)
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END_EVENT_TABLE()
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// -----------------------------------------------------------------------------
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// construction/destruction
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// -----------------------------------------------------------------------------
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void wxTreeCtrl::Init()
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{
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m_current =
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m_key_current =
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m_anchor = (wxGenericTreeItem *) NULL;
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m_hasFocus = FALSE;
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m_dirty = FALSE;
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m_xScroll = 0;
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m_yScroll = 0;
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m_lineHeight = 10;
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m_indent = 15;
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m_spacing = 18;
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m_hilightBrush = new wxBrush
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(
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wxSystemSettings::GetSystemColour(wxSYS_COLOUR_HIGHLIGHT),
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wxSOLID
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);
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m_imageListNormal =
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m_imageListState = (wxImageList *) NULL;
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m_dragCount = 0;
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m_renameTimer = new wxTreeRenameTimer( this );
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m_normalFont = wxSystemSettings::GetSystemFont( wxSYS_DEFAULT_GUI_FONT );
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m_boldFont = wxFont( m_normalFont.GetPointSize(),
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m_normalFont.GetFamily(),
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m_normalFont.GetStyle(),
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wxBOLD,
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m_normalFont.GetUnderlined());
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}
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bool wxTreeCtrl::Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos, const wxSize& size,
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long style,
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#if wxUSE_VALIDATORS
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const wxValidator &validator,
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#endif
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const wxString& name )
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{
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Init();
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wxScrolledWindow::Create( parent, id, pos, size, style|wxHSCROLL|wxVSCROLL, name );
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#if wxUSE_VALIDATORS
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SetValidator( validator );
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#endif
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SetBackgroundColour( *wxWHITE );
|
|
// m_dottedPen = wxPen( "grey", 0, wxDOT ); too slow under XFree86
|
|
m_dottedPen = wxPen( "grey", 0, 0 );
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
wxTreeCtrl::~wxTreeCtrl()
|
|
{
|
|
wxDELETE( m_hilightBrush );
|
|
|
|
DeleteAllItems();
|
|
|
|
delete m_renameTimer;
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// accessors
|
|
// -----------------------------------------------------------------------------
|
|
|
|
size_t wxTreeCtrl::GetCount() const
|
|
{
|
|
return m_anchor == NULL ? 0u : m_anchor->GetChildrenCount();
|
|
}
|
|
|
|
void wxTreeCtrl::SetIndent(unsigned int indent)
|
|
{
|
|
m_indent = indent;
|
|
m_dirty = TRUE;
|
|
}
|
|
|
|
void wxTreeCtrl::SetSpacing(unsigned int spacing)
|
|
{
|
|
m_spacing = spacing;
|
|
m_dirty = TRUE;
|
|
}
|
|
|
|
size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively)
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->GetChildrenCount(recursively);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// functions to work with tree items
|
|
// -----------------------------------------------------------------------------
|
|
|
|
wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxT(""), wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->GetText();
|
|
}
|
|
|
|
int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
|
|
wxTreeItemIcon which) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->GetImage(which);
|
|
}
|
|
|
|
wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->GetData();
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxClientDC dc(this);
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->SetText(text);
|
|
CalculateSize(pItem, dc);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemImage(const wxTreeItemId& item,
|
|
int image,
|
|
wxTreeItemIcon which)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->SetImage(image, which);
|
|
|
|
wxClientDC dc(this);
|
|
CalculateSize(pItem, dc);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
item.m_pItem->SetData(data);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->SetHasPlus(has);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
// avoid redrawing the tree if no real change
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
if ( pItem->IsBold() != bold )
|
|
{
|
|
pItem->SetBold(bold);
|
|
RefreshLine(pItem);
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
|
|
const wxColour& col)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->Attr().SetTextColour(col);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
|
|
const wxColour& col)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->Attr().SetBackgroundColour(col);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
|
|
{
|
|
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *pItem = item.m_pItem;
|
|
pItem->Attr().SetFont(font);
|
|
RefreshLine(pItem);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// item status inquiries
|
|
// -----------------------------------------------------------------------------
|
|
|
|
bool wxTreeCtrl::IsVisible(const wxTreeItemId& WXUNUSED(item)) const
|
|
{
|
|
wxFAIL_MSG(wxT("not implemented"));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
|
|
|
|
return !item.m_pItem->GetChildren().IsEmpty();
|
|
}
|
|
|
|
bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->IsExpanded();
|
|
}
|
|
|
|
bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->IsSelected();
|
|
}
|
|
|
|
bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->IsBold();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// navigation
|
|
// -----------------------------------------------------------------------------
|
|
|
|
wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
return item.m_pItem->GetParent();
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, long& cookie) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
cookie = 0;
|
|
return GetNextChild(item, cookie);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxArrayGenericTreeItems& children = item.m_pItem->GetChildren();
|
|
if ( (size_t)cookie < children.Count() )
|
|
{
|
|
return children.Item(cookie++);
|
|
}
|
|
else
|
|
{
|
|
// there are no more of them
|
|
return wxTreeItemId();
|
|
}
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxArrayGenericTreeItems& children = item.m_pItem->GetChildren();
|
|
return (children.IsEmpty() ? wxTreeItemId() : wxTreeItemId(children.Last()));
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *i = item.m_pItem;
|
|
wxGenericTreeItem *parent = i->GetParent();
|
|
if ( parent == NULL )
|
|
{
|
|
// root item doesn't have any siblings
|
|
return wxTreeItemId();
|
|
}
|
|
|
|
wxArrayGenericTreeItems& siblings = parent->GetChildren();
|
|
int index = siblings.Index(i);
|
|
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
|
|
|
|
size_t n = (size_t)(index + 1);
|
|
return n == siblings.Count() ? wxTreeItemId() : wxTreeItemId(siblings[n]);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *i = item.m_pItem;
|
|
wxGenericTreeItem *parent = i->GetParent();
|
|
if ( parent == NULL )
|
|
{
|
|
// root item doesn't have any siblings
|
|
return wxTreeItemId();
|
|
}
|
|
|
|
wxArrayGenericTreeItems& siblings = parent->GetChildren();
|
|
int index = siblings.Index(i);
|
|
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
|
|
|
|
return index == 0 ? wxTreeItemId()
|
|
: wxTreeItemId(siblings[(size_t)(index - 1)]);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
|
|
{
|
|
wxFAIL_MSG(wxT("not implemented"));
|
|
|
|
return wxTreeItemId();
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxFAIL_MSG(wxT("not implemented"));
|
|
|
|
return wxTreeItemId();
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
|
|
{
|
|
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
|
|
|
|
wxFAIL_MSG(wxT("not implemented"));
|
|
|
|
return wxTreeItemId();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// operations
|
|
// -----------------------------------------------------------------------------
|
|
|
|
wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
|
|
size_t previous,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
wxGenericTreeItem *parent = parentId.m_pItem;
|
|
if ( !parent )
|
|
{
|
|
// should we give a warning here?
|
|
return AddRoot(text, image, selImage, data);
|
|
}
|
|
|
|
wxClientDC dc(this);
|
|
wxGenericTreeItem *item =
|
|
new wxGenericTreeItem( parent, text, dc, image, selImage, data );
|
|
|
|
if ( data != NULL )
|
|
{
|
|
data->m_pItem = item;
|
|
}
|
|
|
|
parent->Insert( item, previous );
|
|
|
|
m_dirty = TRUE;
|
|
|
|
return item;
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
wxCHECK_MSG( !m_anchor, wxTreeItemId(), wxT("tree can have only one root") );
|
|
|
|
wxClientDC dc(this);
|
|
m_anchor = new wxGenericTreeItem((wxGenericTreeItem *)NULL, text, dc,
|
|
image, selImage, data);
|
|
if ( data != NULL )
|
|
{
|
|
data->m_pItem = m_anchor;
|
|
}
|
|
|
|
if (!HasFlag(wxTR_MULTIPLE))
|
|
{
|
|
m_current = m_key_current = m_anchor;
|
|
m_current->SetHilight( TRUE );
|
|
}
|
|
|
|
Refresh();
|
|
AdjustMyScrollbars();
|
|
|
|
return m_anchor;
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
return DoInsertItem(parent, 0u, text, image, selImage, data);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parentId,
|
|
const wxTreeItemId& idPrevious,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
wxGenericTreeItem *parent = parentId.m_pItem;
|
|
if ( !parent )
|
|
{
|
|
// should we give a warning here?
|
|
return AddRoot(text, image, selImage, data);
|
|
}
|
|
|
|
int index = parent->GetChildren().Index(idPrevious.m_pItem);
|
|
wxASSERT_MSG( index != wxNOT_FOUND,
|
|
wxT("previous item in wxTreeCtrl::InsertItem() is not a sibling") );
|
|
|
|
return DoInsertItem(parentId, (size_t)++index, text, image, selImage, data);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parentId,
|
|
size_t before,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
wxGenericTreeItem *parent = parentId.m_pItem;
|
|
if ( !parent )
|
|
{
|
|
// should we give a warning here?
|
|
return AddRoot(text, image, selImage, data);
|
|
}
|
|
|
|
return DoInsertItem(parentId, before, text, image, selImage, data);
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parentId,
|
|
const wxString& text,
|
|
int image, int selImage,
|
|
wxTreeItemData *data)
|
|
{
|
|
wxGenericTreeItem *parent = parentId.m_pItem;
|
|
if ( !parent )
|
|
{
|
|
// should we give a warning here?
|
|
return AddRoot(text, image, selImage, data);
|
|
}
|
|
|
|
return DoInsertItem( parent, parent->GetChildren().Count(), text,
|
|
image, selImage, data);
|
|
}
|
|
|
|
void wxTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item)
|
|
{
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_DELETE_ITEM, GetId() );
|
|
event.m_item = item;
|
|
event.SetEventObject( this );
|
|
ProcessEvent( event );
|
|
}
|
|
|
|
void wxTreeCtrl::DeleteChildren(const wxTreeItemId& itemId)
|
|
{
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
item->DeleteChildren(this);
|
|
|
|
m_dirty = TRUE;
|
|
}
|
|
|
|
void wxTreeCtrl::Delete(const wxTreeItemId& itemId)
|
|
{
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
wxGenericTreeItem *parent = item->GetParent();
|
|
|
|
if ( parent )
|
|
{
|
|
parent->GetChildren().Remove( item ); // remove by value
|
|
}
|
|
|
|
item->DeleteChildren(this);
|
|
SendDeleteEvent(item);
|
|
delete item;
|
|
|
|
m_dirty = TRUE;
|
|
}
|
|
|
|
void wxTreeCtrl::DeleteAllItems()
|
|
{
|
|
if ( m_anchor )
|
|
{
|
|
m_anchor->DeleteChildren(this);
|
|
delete m_anchor;
|
|
|
|
m_anchor = NULL;
|
|
|
|
m_dirty = TRUE;
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::Expand(const wxTreeItemId& itemId)
|
|
{
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
|
|
if ( !item->HasPlus() )
|
|
return;
|
|
|
|
if ( item->IsExpanded() )
|
|
return;
|
|
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_EXPANDING, GetId() );
|
|
event.m_item = item;
|
|
event.SetEventObject( this );
|
|
|
|
// if ( ProcessEvent( event ) && event.m_code ) TODO: Was this a typo ?
|
|
if ( ProcessEvent( event ) && !event.IsAllowed() )
|
|
{
|
|
// cancelled by program
|
|
return;
|
|
}
|
|
|
|
item->Expand();
|
|
CalculatePositions();
|
|
|
|
RefreshSubtree(item);
|
|
|
|
event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED);
|
|
ProcessEvent( event );
|
|
}
|
|
|
|
void wxTreeCtrl::Collapse(const wxTreeItemId& itemId)
|
|
{
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
|
|
if ( !item->IsExpanded() )
|
|
return;
|
|
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, GetId() );
|
|
event.m_item = item;
|
|
event.SetEventObject( this );
|
|
if ( ProcessEvent( event ) && !event.IsAllowed() )
|
|
{
|
|
// cancelled by program
|
|
return;
|
|
}
|
|
|
|
item->Collapse();
|
|
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
size_t count = children.Count();
|
|
for ( size_t n = 0; n < count; n++ )
|
|
{
|
|
Collapse(children[n]);
|
|
}
|
|
|
|
CalculatePositions();
|
|
|
|
RefreshSubtree(item);
|
|
|
|
event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
|
|
ProcessEvent( event );
|
|
}
|
|
|
|
void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
|
|
{
|
|
Collapse(item);
|
|
DeleteChildren(item);
|
|
}
|
|
|
|
void wxTreeCtrl::Toggle(const wxTreeItemId& itemId)
|
|
{
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
|
|
if (item->IsExpanded())
|
|
Collapse(itemId);
|
|
else
|
|
Expand(itemId);
|
|
}
|
|
|
|
void wxTreeCtrl::Unselect()
|
|
{
|
|
if (m_current)
|
|
{
|
|
m_current->SetHilight( FALSE );
|
|
RefreshLine( m_current );
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item)
|
|
{
|
|
if (item->IsSelected())
|
|
{
|
|
item->SetHilight(FALSE);
|
|
RefreshLine(item);
|
|
}
|
|
|
|
if (item->HasChildren())
|
|
{
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
size_t count = children.Count();
|
|
for ( size_t n = 0; n < count; ++n )
|
|
{
|
|
UnselectAllChildren(children[n]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::UnselectAll()
|
|
{
|
|
UnselectAllChildren(GetRootItem().m_pItem);
|
|
}
|
|
|
|
// Recursive function !
|
|
// To stop we must have crt_item<last_item
|
|
// Algorithm :
|
|
// Tag all next children, when no more children,
|
|
// Move to parent (not to tag)
|
|
// Keep going... if we found last_item, we stop.
|
|
bool wxTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
|
|
{
|
|
wxGenericTreeItem *parent = crt_item->GetParent();
|
|
|
|
if (parent == NULL) // This is root item
|
|
return TagAllChildrenUntilLast(crt_item, last_item, select);
|
|
|
|
wxArrayGenericTreeItems& children = parent->GetChildren();
|
|
int index = children.Index(crt_item);
|
|
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
|
|
|
|
size_t count = children.Count();
|
|
for (size_t n=(size_t)(index+1); n<count; ++n)
|
|
{
|
|
if (TagAllChildrenUntilLast(children[n], last_item, select)) return TRUE;
|
|
}
|
|
|
|
return TagNextChildren(parent, last_item, select);
|
|
}
|
|
|
|
bool wxTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select)
|
|
{
|
|
crt_item->SetHilight(select);
|
|
RefreshLine(crt_item);
|
|
|
|
if (crt_item==last_item)
|
|
return TRUE;
|
|
|
|
if (crt_item->HasChildren())
|
|
{
|
|
wxArrayGenericTreeItems& children = crt_item->GetChildren();
|
|
size_t count = children.Count();
|
|
for ( size_t n = 0; n < count; ++n )
|
|
{
|
|
if (TagAllChildrenUntilLast(children[n], last_item, select))
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void wxTreeCtrl::SelectItemRange(wxGenericTreeItem *item1, wxGenericTreeItem *item2)
|
|
{
|
|
// item2 is not necessary after item1
|
|
wxGenericTreeItem *first=NULL, *last=NULL;
|
|
|
|
// choice first' and 'last' between item1 and item2
|
|
if (item1->GetY()<item2->GetY())
|
|
{
|
|
first=item1;
|
|
last=item2;
|
|
}
|
|
else
|
|
{
|
|
first=item2;
|
|
last=item1;
|
|
}
|
|
|
|
bool select = m_current->IsSelected();
|
|
|
|
if ( TagAllChildrenUntilLast(first,last,select) )
|
|
return;
|
|
|
|
TagNextChildren(first,last,select);
|
|
}
|
|
|
|
void wxTreeCtrl::SelectItem(const wxTreeItemId& itemId,
|
|
bool unselect_others,
|
|
bool extended_select)
|
|
{
|
|
wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
|
|
|
|
bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
|
|
//wxCHECK_RET( ( (!unselect_others) && is_single),
|
|
// wxT("this is a single selection tree") );
|
|
|
|
// to keep going anyhow !!!
|
|
if (is_single)
|
|
{
|
|
if (item->IsSelected())
|
|
return; // nothing to do
|
|
unselect_others = TRUE;
|
|
extended_select = FALSE;
|
|
}
|
|
else if ( unselect_others && item->IsSelected() )
|
|
{
|
|
// selection change if there is more than one item currently selected
|
|
wxArrayTreeItemIds selected_items;
|
|
if ( GetSelections(selected_items) == 1 )
|
|
return;
|
|
}
|
|
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_SEL_CHANGING, GetId() );
|
|
event.m_item = item;
|
|
event.m_itemOld = m_current;
|
|
event.SetEventObject( this );
|
|
// TODO : Here we don't send any selection mode yet !
|
|
|
|
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
|
|
return;
|
|
|
|
// ctrl press
|
|
if (unselect_others)
|
|
{
|
|
if (is_single) Unselect(); // to speed up thing
|
|
else UnselectAll();
|
|
}
|
|
|
|
// shift press
|
|
if (extended_select)
|
|
{
|
|
if (m_current == NULL) m_current=m_key_current=GetRootItem().m_pItem;
|
|
// don't change the mark (m_current)
|
|
SelectItemRange(m_current, item);
|
|
}
|
|
else
|
|
{
|
|
bool select=TRUE; // the default
|
|
|
|
// Check if we need to toggle hilight (ctrl mode)
|
|
if (!unselect_others)
|
|
select=!item->IsSelected();
|
|
|
|
m_current = m_key_current = item;
|
|
m_current->SetHilight(select);
|
|
RefreshLine( m_current );
|
|
}
|
|
|
|
event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
|
|
GetEventHandler()->ProcessEvent( event );
|
|
}
|
|
|
|
void wxTreeCtrl::FillArray(wxGenericTreeItem *item,
|
|
wxArrayTreeItemIds &array) const
|
|
{
|
|
if ( item->IsSelected() )
|
|
array.Add(wxTreeItemId(item));
|
|
|
|
if ( item->HasChildren() )
|
|
{
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
size_t count = children.GetCount();
|
|
for ( size_t n = 0; n < count; ++n )
|
|
FillArray(children[n],array);
|
|
}
|
|
}
|
|
|
|
size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
|
|
{
|
|
array.Empty();
|
|
FillArray(GetRootItem().m_pItem, array);
|
|
|
|
return array.Count();
|
|
}
|
|
|
|
void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
|
|
{
|
|
if (!item.IsOk()) return;
|
|
|
|
wxGenericTreeItem *gitem = item.m_pItem;
|
|
|
|
// first expand all parent branches
|
|
wxGenericTreeItem *parent = gitem->GetParent();
|
|
while ( parent )
|
|
{
|
|
Expand(parent);
|
|
parent = parent->GetParent();
|
|
}
|
|
|
|
//if (parent) CalculatePositions();
|
|
|
|
ScrollTo(item);
|
|
}
|
|
|
|
void wxTreeCtrl::ScrollTo(const wxTreeItemId &item)
|
|
{
|
|
if (!item.IsOk()) return;
|
|
|
|
// We have to call this here because the label in
|
|
// question might just have been added and no screen
|
|
// update taken place.
|
|
if (m_dirty) wxYield();
|
|
|
|
wxGenericTreeItem *gitem = item.m_pItem;
|
|
|
|
// now scroll to the item
|
|
int item_y = gitem->GetY();
|
|
|
|
int start_x = 0;
|
|
int start_y = 0;
|
|
ViewStart( &start_x, &start_y );
|
|
start_y *= PIXELS_PER_UNIT;
|
|
|
|
int client_h = 0;
|
|
int client_w = 0;
|
|
GetClientSize( &client_w, &client_h );
|
|
|
|
if (item_y < start_y+3)
|
|
{
|
|
// going down
|
|
int x = 0;
|
|
int y = 0;
|
|
m_anchor->GetSize( x, y, this );
|
|
y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
int x_pos = GetScrollPos( wxHORIZONTAL );
|
|
// Item should appear at top
|
|
SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, item_y/PIXELS_PER_UNIT );
|
|
}
|
|
else if (item_y+GetLineHeight(gitem) > start_y+client_h)
|
|
{
|
|
// going up
|
|
int x = 0;
|
|
int y = 0;
|
|
m_anchor->GetSize( x, y, this );
|
|
y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
item_y += PIXELS_PER_UNIT+2;
|
|
int x_pos = GetScrollPos( wxHORIZONTAL );
|
|
// Item should appear at bottom
|
|
SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, (item_y+GetLineHeight(gitem)-client_h)/PIXELS_PER_UNIT );
|
|
}
|
|
}
|
|
|
|
// FIXME: tree sorting functions are not reentrant and not MT-safe!
|
|
static wxTreeCtrl *s_treeBeingSorted = NULL;
|
|
|
|
static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1,
|
|
wxGenericTreeItem **item2)
|
|
{
|
|
wxCHECK_MSG( s_treeBeingSorted, 0, wxT("bug in wxTreeCtrl::SortChildren()") );
|
|
|
|
return s_treeBeingSorted->OnCompareItems(*item1, *item2);
|
|
}
|
|
|
|
int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
|
|
const wxTreeItemId& item2)
|
|
{
|
|
return wxStrcmp(GetItemText(item1), GetItemText(item2));
|
|
}
|
|
|
|
void wxTreeCtrl::SortChildren(const wxTreeItemId& itemId)
|
|
{
|
|
wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
|
|
|
|
wxGenericTreeItem *item = itemId.m_pItem;
|
|
|
|
wxCHECK_RET( !s_treeBeingSorted,
|
|
wxT("wxTreeCtrl::SortChildren is not reentrant") );
|
|
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
if ( children.Count() > 1 )
|
|
{
|
|
s_treeBeingSorted = this;
|
|
children.Sort(tree_ctrl_compare_func);
|
|
s_treeBeingSorted = NULL;
|
|
|
|
m_dirty = TRUE;
|
|
}
|
|
//else: don't make the tree dirty as nothing changed
|
|
}
|
|
|
|
wxImageList *wxTreeCtrl::GetImageList() const
|
|
{
|
|
return m_imageListNormal;
|
|
}
|
|
|
|
wxImageList *wxTreeCtrl::GetStateImageList() const
|
|
{
|
|
return m_imageListState;
|
|
}
|
|
|
|
void wxTreeCtrl::SetImageList(wxImageList *imageList)
|
|
{
|
|
m_imageListNormal = imageList;
|
|
|
|
// Calculate a m_lineHeight value from the image sizes.
|
|
// May be toggle off. Then wxTreeCtrl will spread when
|
|
// necessary (which might look ugly).
|
|
#if 1
|
|
wxClientDC dc(this);
|
|
m_lineHeight = (int)(dc.GetCharHeight() + 4);
|
|
int width = 0, height = 0,
|
|
n = m_imageListNormal->GetImageCount();
|
|
|
|
for (int i = 0; i < n ; i++)
|
|
{
|
|
m_imageListNormal->GetSize(i, width, height);
|
|
if (height > m_lineHeight) m_lineHeight = height;
|
|
}
|
|
|
|
if (m_lineHeight < 40)
|
|
m_lineHeight += 2; // at least 2 pixels
|
|
else
|
|
m_lineHeight += m_lineHeight/10; // otherwise 10% extra spacing
|
|
#endif
|
|
}
|
|
|
|
void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
|
|
{
|
|
m_imageListState = imageList;
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// helpers
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void wxTreeCtrl::AdjustMyScrollbars()
|
|
{
|
|
if (m_anchor)
|
|
{
|
|
int x = 0;
|
|
int y = 0;
|
|
m_anchor->GetSize( x, y, this );
|
|
y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
|
|
int x_pos = GetScrollPos( wxHORIZONTAL );
|
|
int y_pos = GetScrollPos( wxVERTICAL );
|
|
SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT, x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT, x_pos, y_pos );
|
|
}
|
|
else
|
|
{
|
|
SetScrollbars( 0, 0, 0, 0 );
|
|
}
|
|
}
|
|
|
|
int wxTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const
|
|
{
|
|
if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT)
|
|
return item->GetHeight();
|
|
else
|
|
return m_lineHeight;
|
|
}
|
|
|
|
void wxTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
|
|
{
|
|
wxTreeItemAttr *attr = item->GetAttributes();
|
|
if ( attr && attr->HasFont() )
|
|
dc.SetFont(attr->GetFont());
|
|
else if (item->IsBold())
|
|
dc.SetFont(m_boldFont);
|
|
|
|
long text_w = 0;
|
|
long text_h = 0;
|
|
dc.GetTextExtent( item->GetText(), &text_w, &text_h );
|
|
|
|
int image_h = 0;
|
|
int image_w = 0;
|
|
int image = item->GetCurrentImage();
|
|
if ( image != NO_IMAGE )
|
|
{
|
|
m_imageListNormal->GetSize( image, image_w, image_h );
|
|
image_w += 4;
|
|
}
|
|
|
|
int total_h = GetLineHeight(item);
|
|
|
|
dc.DrawRectangle( item->GetX()-2, item->GetY(), item->GetWidth()+2, total_h );
|
|
|
|
if ( image != NO_IMAGE )
|
|
{
|
|
dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, total_h );
|
|
m_imageListNormal->Draw( image, dc,
|
|
item->GetX(),
|
|
item->GetY() +((total_h > image_h)?((total_h-image_h)/2):0),
|
|
wxIMAGELIST_DRAW_TRANSPARENT );
|
|
dc.DestroyClippingRegion();
|
|
}
|
|
|
|
bool hasBgCol = attr && attr->HasBackgroundColour();
|
|
dc.SetBackgroundMode(hasBgCol ? wxSOLID : wxTRANSPARENT);
|
|
if ( hasBgCol )
|
|
dc.SetTextBackground(attr->GetBackgroundColour());
|
|
dc.DrawText( item->GetText(), image_w + item->GetX(), item->GetY()
|
|
+ ((total_h > text_h) ? (total_h - text_h)/2 : 0));
|
|
|
|
// restore normal font
|
|
dc.SetFont( m_normalFont );
|
|
}
|
|
|
|
// Now y stands for the top of the item, whereas it used to stand for middle !
|
|
void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
|
|
{
|
|
int horizX = level*m_indent;
|
|
|
|
item->SetX( horizX+m_indent+m_spacing );
|
|
item->SetY( y );
|
|
|
|
int oldY = y;
|
|
y+=GetLineHeight(item)/2;
|
|
|
|
item->SetCross( horizX+m_indent, y );
|
|
|
|
int exposed_x = dc.LogicalToDeviceX( 0 );
|
|
int exposed_y = dc.LogicalToDeviceY( item->GetY() );
|
|
|
|
if (IsExposed( exposed_x, exposed_y, 10000, GetLineHeight(item) )) // 10000 = very much
|
|
{
|
|
int startX = horizX;
|
|
int endX = horizX + (m_indent-5);
|
|
|
|
// if (!item->HasChildren()) endX += (m_indent+5);
|
|
if (!item->HasChildren()) endX += 20;
|
|
|
|
dc.DrawLine( startX, y, endX, y );
|
|
|
|
if (item->HasPlus())
|
|
{
|
|
dc.DrawLine( horizX+(m_indent+5), y, horizX+(m_indent+15), y );
|
|
dc.SetPen( *wxGREY_PEN );
|
|
dc.SetBrush( *wxWHITE_BRUSH );
|
|
dc.DrawRectangle( horizX+(m_indent-5), y-4, 11, 9 );
|
|
|
|
dc.SetPen( *wxBLACK_PEN );
|
|
dc.DrawLine( horizX+(m_indent-2), y, horizX+(m_indent+3), y );
|
|
if (!item->IsExpanded())
|
|
dc.DrawLine( horizX+m_indent, y-2, horizX+m_indent, y+3 );
|
|
|
|
dc.SetPen( m_dottedPen );
|
|
}
|
|
|
|
wxPen *pen = wxTRANSPARENT_PEN;
|
|
wxBrush *brush; // FIXME is this really needed?
|
|
wxColour colText;
|
|
|
|
if ( item->IsSelected() )
|
|
{
|
|
colText = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_HIGHLIGHTTEXT );
|
|
|
|
brush = m_hilightBrush;
|
|
|
|
if ( m_hasFocus )
|
|
pen = wxBLACK_PEN;
|
|
|
|
}
|
|
else
|
|
{
|
|
wxTreeItemAttr *attr = item->GetAttributes();
|
|
if ( attr && attr->HasTextColour() )
|
|
colText = attr->GetTextColour();
|
|
else
|
|
colText = *wxBLACK;
|
|
|
|
brush = wxWHITE_BRUSH;
|
|
}
|
|
|
|
// prepare to draw
|
|
dc.SetTextForeground(colText);
|
|
dc.SetPen(*pen);
|
|
dc.SetBrush(*brush);
|
|
|
|
// draw
|
|
PaintItem(item, dc);
|
|
|
|
// restore DC objects
|
|
dc.SetBrush( *wxWHITE_BRUSH );
|
|
dc.SetPen( m_dottedPen );
|
|
dc.SetTextForeground( *wxBLACK );
|
|
}
|
|
|
|
y = oldY+GetLineHeight(item);
|
|
|
|
if (item->IsExpanded())
|
|
{
|
|
oldY+=GetLineHeight(item)/2;
|
|
int semiOldY=0;
|
|
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
size_t n, count = children.Count();
|
|
for ( n = 0; n < count; ++n )
|
|
{
|
|
semiOldY=y;
|
|
PaintLevel( children[n], dc, level+1, y );
|
|
}
|
|
|
|
// it may happen that the item is expanded but has no items (when you
|
|
// delete all its children for example) - don't draw the vertical line
|
|
// in this case
|
|
if (count > 0)
|
|
{
|
|
semiOldY+=GetLineHeight(children[--n])/2;
|
|
dc.DrawLine( horizX+m_indent, oldY+5, horizX+m_indent, semiOldY );
|
|
}
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::DrawBorder(wxTreeItemId &item)
|
|
{
|
|
if (!item) return;
|
|
|
|
wxGenericTreeItem *i=item.m_pItem;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC( dc );
|
|
dc.SetLogicalFunction(wxINVERT);
|
|
|
|
int w,h,x;
|
|
ViewStart(&x,&h); // we only need x
|
|
GetClientSize(&w,&h); // we only need w
|
|
|
|
h=GetLineHeight(i)+1;
|
|
// 2 white column at border
|
|
dc.DrawRectangle( PIXELS_PER_UNIT*x+2, i->GetY()-1, w-6, h);
|
|
}
|
|
|
|
void wxTreeCtrl::DrawLine(wxTreeItemId &item, bool below)
|
|
{
|
|
if (!item) return;
|
|
|
|
wxGenericTreeItem *i=item.m_pItem;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC( dc );
|
|
dc.SetLogicalFunction(wxINVERT);
|
|
|
|
int w,h,y;
|
|
GetSize(&w,&h);
|
|
|
|
if (below) y=i->GetY()+GetLineHeight(i)-1;
|
|
else y=i->GetY();
|
|
|
|
dc.DrawLine( 0, y, w, y);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// wxWindows callbacks
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void wxTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) )
|
|
{
|
|
if ( !m_anchor)
|
|
return;
|
|
|
|
wxPaintDC dc(this);
|
|
PrepareDC( dc );
|
|
|
|
dc.SetFont( m_normalFont );
|
|
dc.SetPen( m_dottedPen );
|
|
|
|
// this is now done dynamically
|
|
//if(GetImageList() == NULL)
|
|
// m_lineHeight = (int)(dc.GetCharHeight() + 4);
|
|
|
|
int y = 2;
|
|
PaintLevel( m_anchor, dc, 0, y );
|
|
}
|
|
|
|
void wxTreeCtrl::OnSetFocus( wxFocusEvent &WXUNUSED(event) )
|
|
{
|
|
m_hasFocus = TRUE;
|
|
|
|
if (m_current) RefreshLine( m_current );
|
|
}
|
|
|
|
void wxTreeCtrl::OnKillFocus( wxFocusEvent &WXUNUSED(event) )
|
|
{
|
|
m_hasFocus = FALSE;
|
|
|
|
if (m_current) RefreshLine( m_current );
|
|
}
|
|
|
|
void wxTreeCtrl::OnChar( wxKeyEvent &event )
|
|
{
|
|
wxTreeEvent te( wxEVT_COMMAND_TREE_KEY_DOWN, GetId() );
|
|
te.m_code = event.KeyCode();
|
|
te.SetEventObject( this );
|
|
GetEventHandler()->ProcessEvent( te );
|
|
|
|
if ( (m_current == 0) || (m_key_current == 0) )
|
|
{
|
|
event.Skip();
|
|
return;
|
|
}
|
|
|
|
bool is_multiple=(GetWindowStyleFlag() & wxTR_MULTIPLE);
|
|
bool extended_select=(event.ShiftDown() && is_multiple);
|
|
bool unselect_others=!(extended_select || (event.ControlDown() && is_multiple));
|
|
|
|
switch (event.KeyCode())
|
|
{
|
|
case '+':
|
|
case WXK_ADD:
|
|
if (m_current->HasPlus() && !IsExpanded(m_current))
|
|
{
|
|
Expand(m_current);
|
|
}
|
|
break;
|
|
|
|
case '-':
|
|
case WXK_SUBTRACT:
|
|
if (IsExpanded(m_current))
|
|
{
|
|
Collapse(m_current);
|
|
}
|
|
break;
|
|
|
|
case '*':
|
|
case WXK_MULTIPLY:
|
|
Toggle(m_current);
|
|
break;
|
|
|
|
case ' ':
|
|
case WXK_RETURN:
|
|
{
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
|
|
event.m_item = m_current;
|
|
event.m_code = 0;
|
|
event.SetEventObject( this );
|
|
GetEventHandler()->ProcessEvent( event );
|
|
}
|
|
break;
|
|
|
|
// up goes to the previous sibling or to the last of its children if
|
|
// it's expanded
|
|
case WXK_UP:
|
|
{
|
|
wxTreeItemId prev = GetPrevSibling( m_key_current );
|
|
if (!prev)
|
|
{
|
|
prev = GetParent( m_key_current );
|
|
if (prev)
|
|
{
|
|
long cockie = 0;
|
|
wxTreeItemId current = m_key_current;
|
|
if (current == GetFirstChild( prev, cockie ))
|
|
{
|
|
// otherwise we return to where we came from
|
|
SelectItem( prev, unselect_others, extended_select );
|
|
m_key_current=prev.m_pItem;
|
|
EnsureVisible( prev );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (prev)
|
|
{
|
|
while ( IsExpanded(prev) && HasChildren(prev) )
|
|
{
|
|
wxTreeItemId child = GetLastChild(prev);
|
|
if ( child )
|
|
{
|
|
prev = child;
|
|
}
|
|
}
|
|
|
|
SelectItem( prev, unselect_others, extended_select );
|
|
m_key_current=prev.m_pItem;
|
|
EnsureVisible( prev );
|
|
}
|
|
}
|
|
break;
|
|
|
|
// left arrow goes to the parent
|
|
case WXK_LEFT:
|
|
{
|
|
wxTreeItemId prev = GetParent( m_current );
|
|
if (prev)
|
|
{
|
|
EnsureVisible( prev );
|
|
SelectItem( prev, unselect_others, extended_select );
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WXK_RIGHT:
|
|
// this works the same as the down arrow except that we also expand the
|
|
// item if it wasn't expanded yet
|
|
Expand(m_current);
|
|
// fall through
|
|
|
|
case WXK_DOWN:
|
|
{
|
|
if (IsExpanded(m_key_current) && HasChildren(m_key_current))
|
|
{
|
|
long cookie = 0;
|
|
wxTreeItemId child = GetFirstChild( m_key_current, cookie );
|
|
SelectItem( child, unselect_others, extended_select );
|
|
m_key_current=child.m_pItem;
|
|
EnsureVisible( child );
|
|
}
|
|
else
|
|
{
|
|
wxTreeItemId next = GetNextSibling( m_key_current );
|
|
// if (next == 0)
|
|
if (!next)
|
|
{
|
|
wxTreeItemId current = m_key_current;
|
|
while (current && !next)
|
|
{
|
|
current = GetParent( current );
|
|
if (current) next = GetNextSibling( current );
|
|
}
|
|
}
|
|
// if (next != 0)
|
|
if (next)
|
|
{
|
|
SelectItem( next, unselect_others, extended_select );
|
|
m_key_current=next.m_pItem;
|
|
EnsureVisible( next );
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
// <End> selects the last visible tree item
|
|
case WXK_END:
|
|
{
|
|
wxTreeItemId last = GetRootItem();
|
|
|
|
while ( last.IsOk() && IsExpanded(last) )
|
|
{
|
|
wxTreeItemId lastChild = GetLastChild(last);
|
|
|
|
// it may happen if the item was expanded but then all of
|
|
// its children have been deleted - so IsExpanded() returned
|
|
// TRUE, but GetLastChild() returned invalid item
|
|
if ( !lastChild )
|
|
break;
|
|
|
|
last = lastChild;
|
|
}
|
|
|
|
if ( last.IsOk() )
|
|
{
|
|
EnsureVisible( last );
|
|
SelectItem( last, unselect_others, extended_select );
|
|
}
|
|
}
|
|
break;
|
|
|
|
// <Home> selects the root item
|
|
case WXK_HOME:
|
|
{
|
|
wxTreeItemId prev = GetRootItem();
|
|
if (prev)
|
|
{
|
|
EnsureVisible( prev );
|
|
SelectItem( prev, unselect_others, extended_select );
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
event.Skip();
|
|
}
|
|
}
|
|
|
|
wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
|
|
{
|
|
// We have to call this here because the label in
|
|
// question might just have been added and no screen
|
|
// update taken place.
|
|
if (m_dirty) wxYield();
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC(dc);
|
|
long x = dc.DeviceToLogicalX( (long)point.x );
|
|
long y = dc.DeviceToLogicalY( (long)point.y );
|
|
int w, h;
|
|
GetSize(&w, &h);
|
|
|
|
flags=0;
|
|
if (point.x<0) flags|=wxTREE_HITTEST_TOLEFT;
|
|
if (point.x>w) flags|=wxTREE_HITTEST_TORIGHT;
|
|
if (point.y<0) flags|=wxTREE_HITTEST_ABOVE;
|
|
if (point.y>h) flags|=wxTREE_HITTEST_BELOW;
|
|
|
|
return m_anchor->HitTest( wxPoint(x, y), this, flags);
|
|
}
|
|
|
|
/* **** */
|
|
|
|
void wxTreeCtrl::Edit( const wxTreeItemId& item )
|
|
{
|
|
if (!item.IsOk()) return;
|
|
|
|
m_currentEdit = item.m_pItem;
|
|
|
|
wxTreeEvent te( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, GetId() );
|
|
te.m_item = m_currentEdit;
|
|
te.SetEventObject( this );
|
|
GetEventHandler()->ProcessEvent( te );
|
|
|
|
if (!te.IsAllowed()) return;
|
|
|
|
// We have to call this here because the label in
|
|
// question might just have been added and no screen
|
|
// update taken place.
|
|
if (m_dirty) wxYield();
|
|
|
|
wxString s = m_currentEdit->GetText();
|
|
int x = m_currentEdit->GetX();
|
|
int y = m_currentEdit->GetY();
|
|
int w = m_currentEdit->GetWidth();
|
|
int h = m_currentEdit->GetHeight();
|
|
|
|
int image_h = 0;
|
|
int image_w = 0;
|
|
|
|
int image = m_currentEdit->GetCurrentImage();
|
|
if ( image != NO_IMAGE )
|
|
{
|
|
m_imageListNormal->GetSize( image, image_w, image_h );
|
|
image_w += 4;
|
|
}
|
|
x += image_w;
|
|
w -= image_w + 4; // I don't know why +4 is needed
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC( dc );
|
|
x = dc.LogicalToDeviceX( x );
|
|
y = dc.LogicalToDeviceY( y );
|
|
|
|
wxTreeTextCtrl *text = new wxTreeTextCtrl(
|
|
this, -1, &m_renameAccept, &m_renameRes, this, s, wxPoint(x-4,y-4), wxSize(w+11,h+8) );
|
|
text->SetFocus();
|
|
}
|
|
|
|
void wxTreeCtrl::OnRenameTimer()
|
|
{
|
|
Edit( m_current );
|
|
}
|
|
|
|
void wxTreeCtrl::OnRenameAccept()
|
|
{
|
|
wxTreeEvent le( wxEVT_COMMAND_TREE_END_LABEL_EDIT, GetId() );
|
|
le.m_item = m_currentEdit;
|
|
le.SetEventObject( this );
|
|
le.m_label = m_renameRes;
|
|
GetEventHandler()->ProcessEvent( le );
|
|
|
|
if (!le.IsAllowed()) return;
|
|
|
|
SetItemText( m_currentEdit, m_renameRes );
|
|
}
|
|
|
|
void wxTreeCtrl::OnMouse( wxMouseEvent &event )
|
|
{
|
|
if ( !(event.LeftUp() || event.RightDown() || event.LeftDClick() || event.Dragging()) ) return;
|
|
|
|
if ( !m_anchor ) return;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC(dc);
|
|
long x = dc.DeviceToLogicalX( (long)event.GetX() );
|
|
long y = dc.DeviceToLogicalY( (long)event.GetY() );
|
|
|
|
int flags=0;
|
|
wxGenericTreeItem *item = m_anchor->HitTest( wxPoint(x,y), this, flags);
|
|
bool onButton = flags & wxTREE_HITTEST_ONITEMBUTTON;
|
|
|
|
if (event.Dragging())
|
|
{
|
|
if (m_dragCount == 0)
|
|
m_dragStart = wxPoint(x,y);
|
|
|
|
m_dragCount++;
|
|
|
|
if (m_dragCount != 3) return;
|
|
|
|
int command = wxEVT_COMMAND_TREE_BEGIN_DRAG;
|
|
if (event.RightIsDown()) command = wxEVT_COMMAND_TREE_BEGIN_RDRAG;
|
|
|
|
wxTreeEvent nevent( command, GetId() );
|
|
nevent.m_item = m_current;
|
|
nevent.SetEventObject(this);
|
|
GetEventHandler()->ProcessEvent(nevent);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
m_dragCount = 0;
|
|
}
|
|
|
|
if (item == NULL) return; /* we hit the blank area */
|
|
|
|
if (event.RightDown()) {
|
|
wxTreeEvent nevent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK,GetId());
|
|
nevent.m_item=item;
|
|
nevent.m_code=0;
|
|
nevent.SetEventObject(this);
|
|
GetEventHandler()->ProcessEvent(nevent);
|
|
return;
|
|
}
|
|
|
|
if (event.LeftUp() && (item == m_current) &&
|
|
(flags & wxTREE_HITTEST_ONITEMLABEL) &&
|
|
HasFlag(wxTR_EDIT_LABELS) )
|
|
{
|
|
m_renameTimer->Start( 100, TRUE );
|
|
return;
|
|
}
|
|
|
|
bool is_multiple=(GetWindowStyleFlag() & wxTR_MULTIPLE);
|
|
bool extended_select=(event.ShiftDown() && is_multiple);
|
|
bool unselect_others=!(extended_select || (event.ControlDown() && is_multiple));
|
|
|
|
if (onButton)
|
|
{
|
|
Toggle( item );
|
|
if (is_multiple)
|
|
return;
|
|
}
|
|
|
|
SelectItem(item, unselect_others, extended_select);
|
|
|
|
if (event.LeftDClick())
|
|
{
|
|
wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, GetId() );
|
|
event.m_item = item;
|
|
event.m_code = 0;
|
|
event.SetEventObject( this );
|
|
GetEventHandler()->ProcessEvent( event );
|
|
}
|
|
}
|
|
|
|
void wxTreeCtrl::OnIdle( wxIdleEvent &WXUNUSED(event) )
|
|
{
|
|
/* after all changes have been done to the tree control,
|
|
* we actually redraw the tree when everything is over */
|
|
|
|
if (!m_dirty)
|
|
return;
|
|
|
|
m_dirty = FALSE;
|
|
|
|
CalculatePositions();
|
|
Refresh();
|
|
AdjustMyScrollbars();
|
|
}
|
|
|
|
void wxTreeCtrl::CalculateSize( wxGenericTreeItem *item, wxDC &dc )
|
|
{
|
|
long text_w = 0;
|
|
long text_h = 0;
|
|
|
|
if (item->IsBold())
|
|
dc.SetFont(m_boldFont);
|
|
|
|
dc.GetTextExtent( item->GetText(), &text_w, &text_h );
|
|
text_h+=2;
|
|
|
|
// restore normal font
|
|
dc.SetFont( m_normalFont );
|
|
|
|
int image_h = 0;
|
|
int image_w = 0;
|
|
int image = item->GetCurrentImage();
|
|
if ( image != NO_IMAGE )
|
|
{
|
|
m_imageListNormal->GetSize( image, image_w, image_h );
|
|
image_w += 4;
|
|
}
|
|
|
|
int total_h = (image_h > text_h) ? image_h : text_h;
|
|
|
|
if (total_h < 40)
|
|
total_h += 2; // at least 2 pixels
|
|
else
|
|
total_h += total_h/10; // otherwise 10% extra spacing
|
|
|
|
item->SetHeight(total_h);
|
|
if (total_h>m_lineHeight) m_lineHeight=total_h;
|
|
|
|
item->SetWidth(image_w+text_w+2);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// for developper : y is now the top of the level
|
|
// not the middle of it !
|
|
void wxTreeCtrl::CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y )
|
|
{
|
|
int horizX = level*m_indent;
|
|
|
|
CalculateSize( item, dc );
|
|
|
|
// set its position
|
|
item->SetX( horizX+m_indent+m_spacing );
|
|
item->SetY( y );
|
|
y+=GetLineHeight(item);
|
|
|
|
if ( !item->IsExpanded() )
|
|
{
|
|
// we dont need to calculate collapsed branches
|
|
return;
|
|
}
|
|
|
|
wxArrayGenericTreeItems& children = item->GetChildren();
|
|
size_t n, count = children.Count();
|
|
for (n = 0; n < count; ++n )
|
|
CalculateLevel( children[n], dc, level+1, y ); // recurse
|
|
}
|
|
|
|
void wxTreeCtrl::CalculatePositions()
|
|
{
|
|
if ( !m_anchor ) return;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC( dc );
|
|
|
|
dc.SetFont( m_normalFont );
|
|
|
|
dc.SetPen( m_dottedPen );
|
|
//if(GetImageList() == NULL)
|
|
// m_lineHeight = (int)(dc.GetCharHeight() + 4);
|
|
|
|
int y = 2;
|
|
CalculateLevel( m_anchor, dc, 0, y ); // start recursion
|
|
}
|
|
|
|
void wxTreeCtrl::RefreshSubtree(wxGenericTreeItem *item)
|
|
{
|
|
if (m_dirty) return;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC(dc);
|
|
|
|
int cw = 0;
|
|
int ch = 0;
|
|
GetClientSize( &cw, &ch );
|
|
|
|
wxRect rect;
|
|
rect.x = dc.LogicalToDeviceX( 0 );
|
|
rect.width = cw;
|
|
rect.y = dc.LogicalToDeviceY( item->GetY() );
|
|
rect.height = ch;
|
|
|
|
Refresh( TRUE, &rect );
|
|
|
|
AdjustMyScrollbars();
|
|
}
|
|
|
|
void wxTreeCtrl::RefreshLine( wxGenericTreeItem *item )
|
|
{
|
|
if (m_dirty) return;
|
|
|
|
wxClientDC dc(this);
|
|
PrepareDC( dc );
|
|
|
|
int cw = 0;
|
|
int ch = 0;
|
|
GetClientSize( &cw, &ch );
|
|
|
|
wxRect rect;
|
|
rect.x = dc.LogicalToDeviceX( 0 );
|
|
rect.y = dc.LogicalToDeviceY( item->GetY() );
|
|
rect.width = cw;
|
|
rect.height = GetLineHeight(item); //dc.GetCharHeight() + 6;
|
|
|
|
Refresh( TRUE, &rect );
|
|
}
|
|
|