src/msw/headerctrl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/headerctrl.cpp
   3 // Purpose:     implementation of wxHeaderCtrl for wxMSW
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-12-01
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // for compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/log.h"
  28 #endif // WX_PRECOMP
  29
  30 #include "wx/headerctrl.h"
  31 #include "wx/imaglist.h"
  32
  33 #include "wx/msw/wrapcctl.h"
  34 #include "wx/msw/private.h"
  35
  36 // ============================================================================
  37 // wxHeaderCtrl implementation
  38 // ============================================================================
  39
  40 // ----------------------------------------------------------------------------
  41 // wxHeaderCtrl construction/destruction
  42 // ----------------------------------------------------------------------------
  43
  44 void wxHeaderCtrl::Init()
  45 {
  46     m_imageList = NULL;
  47 }
  48
  49 bool wxHeaderCtrl::Create(wxWindow *parent,
  50                           wxWindowID id,
  51                           const wxPoint& pos,
  52                           const wxSize& size,
  53                           long style,
  54                           const wxString& name)
  55 {
  56     // notice that we don't need InitCommonControlsEx(ICC_LISTVIEW_CLASSES)
  57     // here as we already call InitCommonControls() in wxApp initialization
  58     // code which covers this
  59
  60     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
  61         return false;
  62
  63     if ( !MSWCreateControl(WC_HEADER, _T(""), pos, size) )
  64         return false;
  65
  66     return true;
  67 }
  68
  69 WXDWORD wxHeaderCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
  70 {
  71     WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
  72
  73     if ( style & wxHD_DRAGDROP )
  74         msStyle |= HDS_DRAGDROP;
  75
  76     // the control looks nicer with these styles and there doesn't seem to be
  77     // any reason to not use them so we always do (as for HDS_HORZ it is 0
  78     // anyhow but include it for clarity)
  79     msStyle |= HDS_HORZ | HDS_BUTTONS | HDS_FLAT | HDS_FULLDRAG | HDS_HOTTRACK;
  80
  81     return msStyle;
  82 }
  83
  84 wxHeaderCtrl::~wxHeaderCtrl()
  85 {
  86     delete m_imageList;
  87 }
  88
  89 // ----------------------------------------------------------------------------
  90 // wxHeaderCtrl geometry calculation
  91 // ----------------------------------------------------------------------------
  92
  93 wxSize wxHeaderCtrl::DoGetBestSize() const
  94 {
  95     RECT rc = wxGetClientRect(GetHwndOf(GetParent()));
  96     WINDOWPOS wpos;
  97     HDLAYOUT layout = { &rc, &wpos };
  98     if ( !Header_Layout(GetHwnd(), &layout) )
  99     {
 100         wxLogLastError(_T("Header_Layout"));
 101         return wxControl::DoGetBestSize();
 102     }
 103
 104     return wxSize(wpos.cx, wpos.cy);
 105 }
 106
 107 // ----------------------------------------------------------------------------
 108 // wxHeaderCtrl columns managements
 109 // ----------------------------------------------------------------------------
 110
 111 unsigned int wxHeaderCtrl::DoGetCount() const
 112 {
 113     return Header_GetItemCount(GetHwnd());
 114 }
 115
 116 void wxHeaderCtrl::DoInsert(const wxHeaderColumn& col, unsigned int idx)
 117 {
 118     // copy the HDITEM because we may modify it below
 119     HDITEM hdi = col.GetHDI();
 120
 121     const wxBitmap bmp = col.GetBitmap();
 122     if ( bmp.IsOk() )
 123     {
 124         const int bmpWidth = bmp.GetWidth(),
 125                   bmpHeight = bmp.GetHeight();
 126
 127         if ( !m_imageList )
 128         {
 129             m_imageList = new wxImageList(bmpWidth, bmpHeight);
 130             Header_SetImageList(GetHwnd(), GetHimagelistOf(m_imageList));
 131         }
 132         else // already have an image list
 133         {
 134             // check that all bitmaps we use have the same size
 135             int imageWidth,
 136                 imageHeight;
 137             m_imageList->GetSize(0, imageWidth, imageHeight);
 138
 139             wxASSERT_MSG( imageWidth == bmpWidth && imageHeight == bmpHeight,
 140                           "all column bitmaps must have the same size" );
 141         }
 142
 143         m_imageList->Add(bmp);
 144         hdi.mask |= HDI_IMAGE;
 145         hdi.iImage = m_imageList->GetImageCount() - 1;
 146     }
 147
 148     if ( Header_InsertItem(GetHwnd(), idx, &hdi) == -1 )
 149     {
 150         wxLogLastError(_T("Header_InsertItem"));
 151     }
 152 }
 153
 154 void wxHeaderCtrl::DoDelete(unsigned int idx)
 155 {
 156     if ( !Header_DeleteItem(GetHwnd(), idx) )
 157     {
 158         wxLogLastError(_T("Header_DeleteItem"));
 159     }
 160 }
 161
 162 // ----------------------------------------------------------------------------
 163 // wxHeaderCtrl columns attributes
 164 // ----------------------------------------------------------------------------
 165
 166 void wxHeaderCtrl::DoShowSortIndicator(unsigned int idx, int sortOrder)
 167 {
 168     wxHDITEM hdi;
 169     hdi.mask = HDI_FORMAT;
 170
 171     if ( !Header_GetItem(GetHwnd(), idx, &hdi) )
 172     {
 173         wxLogLastError(_T("Header_GetItem"));
 174         return;
 175     }
 176
 177     if ( sortOrder == -1 )
 178         hdi.fmt &= ~(HDF_SORTDOWN | HDF_SORTUP);
 179     else
 180         hdi.fmt |= sortOrder ? HDF_SORTUP : HDF_SORTDOWN;
 181
 182     if ( !Header_SetItem(GetHwnd(), idx, &hdi) )
 183     {
 184         wxLogLastError(_T("Header_SetItem"));
 185     }
 186 }
 187