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