src/common/cairo.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/cairo.cpp
   3 // Purpose:     Cairo library
   4 // Author:      Anthony Betaudeau
   5 // Created:     2007-08-25
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Anthony Bretaudeau
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/cairo.h"
  20
  21 #if wxUSE_CAIRO
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/module.h"
  25     #include "wx/log.h"
  26 #endif
  27
  28
  29 wxCairoLibrary *wxCairoLibrary::ms_lib = NULL;
  30
  31 //----------------------------------------------------------------------------
  32 // wxCairoLibrary
  33 //----------------------------------------------------------------------------
  34
  35 wxCairoLibrary::wxCairoLibrary()
  36 {
  37     wxLogNull log;
  38
  39     m_libCairo.Load("libcairo.so.2");
  40     m_ok = m_libCairo.IsLoaded();
  41     if ( !m_ok )
  42         return;
  43
  44 #if wxUSE_PANGO
  45     m_libPangoCairo.Load("libpangocairo-1.0.so.0");
  46     m_ok = m_libPangoCairo.IsLoaded();
  47     if ( !m_ok )
  48     {
  49         m_libCairo.Unload();
  50         return;
  51     }
  52 #endif
  53
  54     m_ok = InitializeMethods();
  55 }
  56
  57 wxCairoLibrary::~wxCairoLibrary()
  58 {
  59 }
  60
  61 /* static */ wxCairoLibrary* wxCairoLibrary::Get()
  62 {
  63     if ( !ms_lib )
  64     {
  65         ms_lib = new wxCairoLibrary();
  66         if ( !ms_lib->IsOk() )
  67         {
  68             delete ms_lib;
  69             ms_lib = NULL;
  70         }
  71     }
  72
  73     return ms_lib;
  74 }
  75
  76 /* static */ void wxCairoLibrary::CleanUp()
  77 {
  78     if (ms_lib)
  79     {
  80         delete ms_lib;
  81         ms_lib = NULL;
  82     }
  83 }
  84
  85 bool wxCairoLibrary::IsOk()
  86 {
  87     return m_ok;
  88 }
  89
  90 bool wxCairoLibrary::InitializeMethods()
  91 {
  92     wxDL_METHOD_LOAD(m_libCairo, cairo_arc);
  93     wxDL_METHOD_LOAD(m_libCairo, cairo_arc_negative);
  94     wxDL_METHOD_LOAD(m_libCairo, cairo_clip);
  95     wxDL_METHOD_LOAD(m_libCairo, cairo_close_path);
  96     wxDL_METHOD_LOAD(m_libCairo, cairo_create);
  97     wxDL_METHOD_LOAD(m_libCairo, cairo_curve_to);
  98     wxDL_METHOD_LOAD(m_libCairo, cairo_destroy);
  99     wxDL_METHOD_LOAD(m_libCairo, cairo_fill);
 100     wxDL_METHOD_LOAD(m_libCairo, cairo_fill_preserve);
 101     wxDL_METHOD_LOAD(m_libCairo, cairo_get_target);
 102     wxDL_METHOD_LOAD(m_libCairo, cairo_image_surface_create_for_data);
 103     wxDL_METHOD_LOAD(m_libCairo, cairo_line_to);
 104     wxDL_METHOD_LOAD(m_libCairo, cairo_move_to);
 105     wxDL_METHOD_LOAD(m_libCairo, cairo_new_path);
 106     wxDL_METHOD_LOAD(m_libCairo, cairo_paint);
 107     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_add_color_stop_rgba);
 108     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_create_for_surface);
 109     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_create_linear);
 110     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_create_radial);
 111     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_destroy);
 112     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_set_extend);
 113     wxDL_METHOD_LOAD(m_libCairo, cairo_pattern_set_filter);
 114     wxDL_METHOD_LOAD(m_libCairo, cairo_rectangle);
 115     wxDL_METHOD_LOAD(m_libCairo, cairo_reset_clip);
 116     wxDL_METHOD_LOAD(m_libCairo, cairo_restore);
 117     wxDL_METHOD_LOAD(m_libCairo, cairo_rotate);
 118     wxDL_METHOD_LOAD(m_libCairo, cairo_save);
 119     wxDL_METHOD_LOAD(m_libCairo, cairo_scale);
 120     wxDL_METHOD_LOAD(m_libCairo, cairo_set_dash);
 121     wxDL_METHOD_LOAD(m_libCairo, cairo_set_fill_rule);
 122     wxDL_METHOD_LOAD(m_libCairo, cairo_set_line_cap);
 123     wxDL_METHOD_LOAD(m_libCairo, cairo_set_line_join);
 124     wxDL_METHOD_LOAD(m_libCairo, cairo_set_line_width);
 125     wxDL_METHOD_LOAD(m_libCairo, cairo_set_operator);
 126     wxDL_METHOD_LOAD(m_libCairo, cairo_set_source);
 127     wxDL_METHOD_LOAD(m_libCairo, cairo_set_source_rgba);
 128     wxDL_METHOD_LOAD(m_libCairo, cairo_stroke);
 129     wxDL_METHOD_LOAD(m_libCairo, cairo_stroke_preserve);
 130     wxDL_METHOD_LOAD(m_libCairo, cairo_surface_create_similar);
 131     wxDL_METHOD_LOAD(m_libCairo, cairo_surface_destroy);
 132     wxDL_METHOD_LOAD(m_libCairo, cairo_translate);
 133
 134 #if wxUSE_PANGO
 135     wxDL_METHOD_LOAD(m_libPangoCairo, pango_cairo_update_layout);
 136     wxDL_METHOD_LOAD(m_libPangoCairo, pango_cairo_show_layout);
 137 #endif
 138
 139     return true;
 140 }
 141
 142 //----------------------------------------------------------------------------
 143 // wxCairoModule
 144 //----------------------------------------------------------------------------
 145
 146 class wxCairoModule : public wxModule
 147 {
 148 public:
 149     wxCairoModule() { }
 150     virtual bool OnInit();
 151     virtual void OnExit();
 152
 153 private:
 154     DECLARE_DYNAMIC_CLASS(wxCairotModule)
 155 };
 156
 157 bool wxCairoModule::OnInit()
 158 {
 159     return true;
 160 }
 161
 162 void wxCairoModule::OnExit()
 163 {
 164     wxCairoLibrary::CleanUp();
 165 }
 166
 167 IMPLEMENT_DYNAMIC_CLASS(wxCairoModule, wxModule)
 168
 169 #endif // wxUSE_CAIRO