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: cairo.cpp 44625 2007-08-25 11:35:04Z VZ $
   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::s_lib = NULL;
  30
  31 //----------------------------------------------------------------------------
  32 // wxCairoLibrary
  33 //----------------------------------------------------------------------------
  34
  35 wxCairoLibrary::wxCairoLibrary()
  36 {
  37     m_cairo_lib = NULL;
  38     m_pango_cairo_lib = NULL;
  39
  40     wxLogNull log;
  41
  42     m_cairo_lib = new wxDynamicLibrary( wxT("libcairo.so.2") );
  43     m_ok = m_cairo_lib->IsLoaded();
  44     if (!m_ok) return;
  45
  46     m_pango_cairo_lib = new wxDynamicLibrary( wxT("libpangocairo-1.0.so.0") );
  47     m_ok = m_pango_cairo_lib->IsLoaded();
  48     if (!m_ok) return;
  49
  50     InitializeMethods();
  51 }
  52
  53 wxCairoLibrary::~wxCairoLibrary()
  54 {
  55     if (m_cairo_lib)
  56         delete m_cairo_lib;
  57 }
  58
  59 /* static */ wxCairoLibrary* wxCairoLibrary::Get()
  60 {
  61     if (s_lib)
  62         return s_lib;
  63
  64     s_lib = new wxCairoLibrary();
  65     if (s_lib->IsOk())
  66         return s_lib;
  67
  68     delete s_lib;
  69     s_lib = NULL;
  70
  71     return NULL;
  72 }
  73
  74 /* static */ void wxCairoLibrary::CleanUp()
  75 {
  76     if (s_lib)
  77     {
  78         delete s_lib;
  79         s_lib = NULL;
  80     }
  81 }
  82
  83 bool wxCairoLibrary::IsOk()
  84 {
  85     return m_ok;
  86 }
  87
  88 void wxCairoLibrary::InitializeMethods()
  89 {
  90     m_ok = false;
  91     bool success;
  92
  93     wxDL_METHOD_LOAD( m_cairo_lib, cairo_arc, success )
  94     wxDL_METHOD_LOAD( m_cairo_lib, cairo_arc_negative, success )
  95     wxDL_METHOD_LOAD( m_cairo_lib, cairo_clip, success )
  96     wxDL_METHOD_LOAD( m_cairo_lib, cairo_close_path, success )
  97     wxDL_METHOD_LOAD( m_cairo_lib, cairo_create, success )
  98     wxDL_METHOD_LOAD( m_cairo_lib, cairo_curve_to, success )
  99     wxDL_METHOD_LOAD( m_cairo_lib, cairo_destroy, success )
 100     wxDL_METHOD_LOAD( m_cairo_lib, cairo_fill, success )
 101     wxDL_METHOD_LOAD( m_cairo_lib, cairo_fill_preserve, success )
 102     wxDL_METHOD_LOAD( m_cairo_lib, cairo_get_target, success )
 103     wxDL_METHOD_LOAD( m_cairo_lib, cairo_image_surface_create_for_data, success )
 104     wxDL_METHOD_LOAD( m_cairo_lib, cairo_line_to, success )
 105     wxDL_METHOD_LOAD( m_cairo_lib, cairo_move_to, success )
 106     wxDL_METHOD_LOAD( m_cairo_lib, cairo_new_path, success )
 107     wxDL_METHOD_LOAD( m_cairo_lib, cairo_paint, success )
 108     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_add_color_stop_rgba, success )
 109     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_for_surface, success )
 110     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_linear, success )
 111     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_radial, success )
 112     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_destroy, success )
 113     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_set_extend, success )
 114     wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_set_filter, success )
 115     wxDL_METHOD_LOAD( m_cairo_lib, cairo_rectangle, success )
 116     wxDL_METHOD_LOAD( m_cairo_lib, cairo_reset_clip, success )
 117     wxDL_METHOD_LOAD( m_cairo_lib, cairo_restore, success )
 118     wxDL_METHOD_LOAD( m_cairo_lib, cairo_rotate, success )
 119     wxDL_METHOD_LOAD( m_cairo_lib, cairo_save, success )
 120     wxDL_METHOD_LOAD( m_cairo_lib, cairo_scale, success )
 121     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_dash, success )
 122     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_fill_rule, success )
 123     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_cap, success )
 124     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_join, success )
 125     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_width, success )
 126     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_operator, success )
 127     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_source, success )
 128     wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_source_rgba, success )
 129     wxDL_METHOD_LOAD( m_cairo_lib, cairo_stroke, success )
 130     wxDL_METHOD_LOAD( m_cairo_lib, cairo_stroke_preserve, success )
 131     wxDL_METHOD_LOAD( m_cairo_lib, cairo_surface_create_similar, success )
 132     wxDL_METHOD_LOAD( m_cairo_lib, cairo_surface_destroy, success )
 133     wxDL_METHOD_LOAD( m_cairo_lib, cairo_translate, success )
 134
 135     wxDL_METHOD_LOAD( m_pango_cairo_lib, pango_cairo_update_layout, success )
 136     wxDL_METHOD_LOAD( m_pango_cairo_lib, pango_cairo_show_layout, success )
 137
 138     m_ok = true;
 139 }
 140
 141 //----------------------------------------------------------------------------
 142 // wxCairoModule
 143 //----------------------------------------------------------------------------
 144
 145 class wxCairoModule: public wxModule
 146 {
 147 public:
 148     wxCairoModule() { }
 149     bool OnInit();
 150     void OnExit();
 151
 152 private:
 153     DECLARE_DYNAMIC_CLASS(wxCairoPrintModule)
 154 };
 155
 156 bool wxCairoModule::OnInit()
 157 {
 158     return true;
 159 }
 160
 161 void wxCairoModule::OnExit()
 162 {
 163     wxCairoLibrary::CleanUp();
 164 }
 165
 166 IMPLEMENT_DYNAMIC_CLASS(wxCairoModule, wxModule)
 167
 168 #endif
 169   // wxUSE_CAIRO