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 // Copyright:   (c) 2009 Marcin Malich <me@malcom.pl>
   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 #if wxUSE_OWNER_DRAWN
  27
  28 #include "wx/ownerdrw.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/window.h"
  32     #include "wx/font.h"
  33     #include "wx/colour.h"
  34     #include "wx/dcmemory.h"
  35     #include "wx/settings.h"
  36     #include "wx/utils.h"
  37 #endif
  38
  39 // ============================================================================
  40 // implementation
  41 // ============================================================================
  42
  43 bool wxOwnerDrawnBase::OnMeasureItem(size_t *width, size_t *height)
  44 {
  45     if ( IsOwnerDrawn() )
  46     {
  47         wxMemoryDC dc;
  48         wxFont font;
  49         GetFontToUse(font);
  50         dc.SetFont(font);
  51
  52         // item name/text without mnemonics
  53         wxString name = wxStripMenuCodes(GetName(), wxStrip_Mnemonics);
  54
  55         wxCoord w, h;
  56         dc.GetTextExtent(name, &w, &h);
  57
  58         *width = w + m_margin;
  59         *height = h;
  60     }
  61     else
  62     {
  63         *width = 0;
  64         *height = 0;
  65     }
  66
  67     return true;
  68 }
  69
  70 void wxOwnerDrawnBase::GetFontToUse(wxFont& font) const
  71 {
  72     font = m_font.IsOk() ? m_font : *wxNORMAL_FONT;
  73 }
  74
  75 void wxOwnerDrawnBase::GetColourToUse(wxODStatus stat, wxColour& colText, wxColour& colBack) const
  76 {
  77     if ( stat & wxODSelected )
  78     {
  79         colText = wxSystemSettings::GetColour(
  80                 !(stat & wxODDisabled) ? wxSYS_COLOUR_HIGHLIGHTTEXT
  81                                        : wxSYS_COLOUR_GRAYTEXT);
  82
  83         colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
  84     }
  85     else
  86     {
  87         // fall back to default colors if none explicitly specified
  88
  89         if ( stat & wxODDisabled )
  90         {
  91             colText = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT);
  92         }
  93         else
  94         {
  95             colText = m_colText.IsOk() ? m_colText
  96                                      : wxSystemSettings::GetColour(wxSYS_COLOUR_MENUTEXT);
  97         }
  98
  99         colBack = m_colBack.IsOk() ? m_colBack
 100                                  : wxSystemSettings::GetColour(wxSYS_COLOUR_MENU);
 101     }
 102 }
 103
 104 #endif // wxUSE_OWNER_DRAWN