src/common/ownerdrwcmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/ownerdrwcmn.cpp
   3 // Purpose:     wxOwnerDrawn class methods common to all platforms
   4 // Author:      Marcin Malich
   5 // Modified by:
   6 // Created:     2009-09-22
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2009 Marcin Malich <me@malcom.pl>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_OWNER_DRAWN
  28
  29 #include "wx/ownerdrw.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/window.h"
  33     #include "wx/font.h"
  34     #include "wx/colour.h"
  35     #include "wx/dcmemory.h"
  36     #include "wx/settings.h"
  37     #include "wx/utils.h"
  38 #endif
  39
  40 // ============================================================================
  41 // implementation
  42 // ============================================================================
  43
  44 bool wxOwnerDrawnBase::OnMeasureItem(size_t *width, size_t *height)
  45 {
  46     if ( IsOwnerDrawn() )
  47     {
  48         wxMemoryDC dc;
  49         wxFont font;
  50         GetFontToUse(font);
  51         dc.SetFont(font);
  52
  53         // item name/text without mnemonics
  54         wxString name = wxStripMenuCodes(GetName(), wxStrip_Mnemonics);
  55
  56         wxCoord w, h;
  57         dc.GetTextExtent(name, &w, &h);
  58
  59         *width = w + m_margin;
  60         *height = h;
  61     }
  62     else
  63     {
  64         *width = 0;
  65         *height = 0;
  66     }
  67
  68     return true;
  69 }
  70
  71 void wxOwnerDrawnBase::GetFontToUse(wxFont& font) const
  72 {
  73     font = m_font.IsOk() ? m_font : *wxNORMAL_FONT;
  74 }
  75
  76 void wxOwnerDrawnBase::GetColourToUse(wxODStatus stat, wxColour& colText, wxColour& colBack) const
  77 {
  78     if ( stat & wxODSelected )
  79     {
  80         colText = wxSystemSettings::GetColour(
  81                 !(stat & wxODDisabled) ? wxSYS_COLOUR_HIGHLIGHTTEXT
  82                                        : wxSYS_COLOUR_GRAYTEXT);
  83
  84         colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
  85     }
  86     else
  87     {
  88         // fall back to default colors if none explicitly specified
  89         colText = m_colText.Ok() ? m_colText
  90                                  : wxSystemSettings::GetColour(wxSYS_COLOUR_MENUTEXT);
  91         colBack = m_colBack.Ok() ? m_colBack
  92                                  : wxSystemSettings::GetColour(wxSYS_COLOUR_MENU);
  93     }
  94 }
  95
  96 #endif // wxUSE_OWNER_DRAWN