// Purpose: Cairo library
// Author: Anthony Betaudeau
// Created: 2007-08-25
-// RCS-ID: $Id: cairo.cpp 44625 2007-08-25 11:35:04Z VZ $
// Copyright: (c) Anthony Bretaudeau
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#pragma hdrstop
#endif
-#include "wx/cairo.h"
-
#if wxUSE_CAIRO
+// keep cairo.h from defining dllimport as we're defining the symbols inside
+// the wx dll in order to load them dynamically.
+#define cairo_public
+
+#include <cairo.h>
+#include "wx/dynlib.h"
+
+#ifdef __WXMSW__
+#include "wx/msw/wrapwin.h"
+#endif
+
+#ifdef __WXMAC__
+#include "wx/osx/private.h"
+#include <cairo-quartz.h>
+#endif
+
#ifndef WX_PRECOMP
#include "wx/module.h"
#include "wx/log.h"
#endif
+#define wxCAIRO_METHOD_TYPE(name) \
+ wxCairo##name##_t
+
+#define wxCAIRO_STATIC_METHOD_DEFINE(rettype, name, args, argnames, defret) \
+ static wxCAIRO_METHOD_TYPE(name) name;
+
+#define wxCAIRO_STATIC_VOIDMETHOD_DEFINE(name, args, argnames) \
+ wxCAIRO_STATIC_METHOD_DEFINE(void, name, args, argnames, NULL)
+
+#define wxFOR_ALL_CAIRO_VOIDMETHODS(m) \
+ m( cairo_append_path, \
+ (cairo_t *cr, const cairo_path_t *path), (cr, path) ) \
+ m( cairo_arc, \
+ (cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2), (cr, xc, yc, radius, angle1, angle2) ) \
+ m( cairo_arc_negative, \
+ (cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2), (cr, xc, yc, radius, angle1, angle2) ) \
+ m( cairo_clip, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_close_path, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_curve_to, \
+ (cairo_t *cr, double x1, double y1, double x2, double y2, double x3, double y3), (cr, x1, y1, x2, y2, x3, y3) ) \
+ m( cairo_destroy, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_fill, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_fill_preserve, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_font_extents, \
+ (cairo_t *cr, cairo_font_extents_t *extents), (cr, extents) ) \
+ m( cairo_font_face_destroy, \
+ (cairo_font_face_t *font_face), (font_face) ) \
+ m( cairo_get_current_point, \
+ (cairo_t *cr, double *x, double *y), (cr, x, y) ) \
+ m( cairo_get_matrix, \
+ (cairo_t *cr, cairo_matrix_t *matrix), (cr, matrix) ) \
+ m( cairo_line_to, \
+ (cairo_t *cr, double x, double y), (cr, x, y) ) \
+ m( cairo_matrix_init, \
+ (cairo_matrix_t *matrix, double xx, double yx, double xy, double yy, double x0, double y0), (matrix, xx, yx, xy, yy, x0, y0) ) \
+ m( cairo_matrix_multiply, \
+ (cairo_matrix_t *result, const cairo_matrix_t *a, const cairo_matrix_t *b), (result, a, b) ) \
+ m( cairo_matrix_rotate, \
+ (cairo_matrix_t *matrix, double radians), (matrix, radians) ) \
+ m( cairo_matrix_scale, \
+ (cairo_matrix_t *matrix, double sx, double sy), (matrix, sx, sy) ) \
+ m( cairo_matrix_transform_distance, \
+ (const cairo_matrix_t *matrix, double *dx, double *dy), (matrix, dx, dy) ) \
+ m( cairo_matrix_transform_point, \
+ (const cairo_matrix_t *matrix, double *x, double *y), (matrix, x, y) ) \
+ m( cairo_matrix_translate, \
+ (cairo_matrix_t *matrix, double tx, double ty), (matrix, tx, ty) ) \
+ m( cairo_move_to, \
+ (cairo_t *cr, double x, double y), (cr, x, y) ) \
+ m( cairo_new_path, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_paint, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_paint_with_alpha, \
+ (cairo_t *cr, double alpha), (cr, alpha) ) \
+ m( cairo_path_destroy, \
+ (cairo_path_t *path), (path) ) \
+ m( cairo_pattern_add_color_stop_rgba, \
+ (cairo_pattern_t *pattern, double offset, double red, double green, double blue, double alpha), (pattern, offset, red, green, blue, alpha) ) \
+ m( cairo_pattern_destroy, \
+ (cairo_pattern_t *pattern), (pattern) ) \
+ m( cairo_pattern_set_extend, \
+ (cairo_pattern_t *pattern, cairo_extend_t extend), (pattern, extend) ) \
+ m( cairo_pattern_set_filter, \
+ (cairo_pattern_t *pattern, cairo_filter_t filter), (pattern, filter) ) \
+ m( cairo_pop_group_to_source, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_push_group, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_rectangle, \
+ (cairo_t *cr, double x, double y, double width, double height), (cr, x, y, width, height) ) \
+ m( cairo_reset_clip, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_restore, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_rotate, \
+ (cairo_t *cr, double angle), (cr, angle) ) \
+ m( cairo_save, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_scale, \
+ (cairo_t *cr, double sx, double sy), (cr, sx, sy) ) \
+ m( cairo_select_font_face, \
+ (cairo_t *cr, const char *family, cairo_font_slant_t slant, cairo_font_weight_t weight), (cr, family, slant, weight) ) \
+ m( cairo_set_antialias, \
+ (cairo_t *cr, cairo_antialias_t antialias), (cr, antialias) ) \
+ m( cairo_set_dash, \
+ (cairo_t *cr, const double *dashes, int num_dashes, double offset), (cr, dashes, num_dashes, offset) ) \
+ m( cairo_set_fill_rule, \
+ (cairo_t *cr, cairo_fill_rule_t fill_rule), (cr, fill_rule) ) \
+ m( cairo_set_font_face, \
+ (cairo_t *cr, cairo_font_face_t *font_face), (cr, font_face) ) \
+ m( cairo_set_font_size, \
+ (cairo_t *cr, double size), (cr, size) ) \
+ m( cairo_set_line_cap, \
+ (cairo_t *cr, cairo_line_cap_t line_cap), (cr, line_cap) ) \
+ m( cairo_set_line_join, \
+ (cairo_t *cr, cairo_line_join_t line_join), (cr, line_join) ) \
+ m( cairo_set_line_width, \
+ (cairo_t *cr, double width), (cr, width) ) \
+ m( cairo_set_matrix, \
+ (cairo_t *cr, const cairo_matrix_t *matrix), (cr, matrix) ) \
+ m( cairo_set_operator, \
+ (cairo_t *cr, cairo_operator_t op), (cr, op) ) \
+ m( cairo_set_source, \
+ (cairo_t *cr, cairo_pattern_t *source), (cr, source) ) \
+ m( cairo_set_source_rgba, \
+ (cairo_t *cr, double red, double green, double blue, double alpha), (cr, red, green, blue, alpha) ) \
+ m( cairo_show_text, \
+ (cairo_t *cr, const char *utf8), (cr, utf8) ) \
+ m( cairo_stroke, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_stroke_extents, \
+ (cairo_t *cr, double *x1, double *y1, double *x2, double *y2), (cr, x1, y1, x2, y2) ) \
+ m( cairo_stroke_preserve, \
+ (cairo_t *cr), (cr) ) \
+ m( cairo_surface_destroy, \
+ (cairo_surface_t *surface), (surface) ) \
+ m( cairo_text_extents, \
+ (cairo_t *cr, const char *utf8, cairo_text_extents_t *extents), (cr, utf8, extents) ) \
+ m( cairo_transform, \
+ (cairo_t *cr, const cairo_matrix_t *matrix), (cr, matrix) ) \
+ m( cairo_translate, \
+ (cairo_t *cr, double tx, double ty), (cr, tx, ty) ) \
+
+#ifdef __WXMAC__
+#define wxCAIRO_PLATFORM_METHODS(m) \
+ m( cairo_font_face_t*, cairo_quartz_font_face_create_for_cgfont, \
+ (CGFontRef font), (font), NULL ) \
+ m( cairo_surface_t*, cairo_quartz_surface_create_for_cg_context, \
+ (CGContextRef cgContext, unsigned int width, unsigned int height), (cgContext, width, height), NULL )
+#elif defined(__WXMSW__)
+#define wxCAIRO_PLATFORM_METHODS(m) \
+ m( cairo_surface_t*, cairo_win32_surface_create, \
+ (HDC hdc), (hdc), NULL ) \
+ m( cairo_surface_t*, cairo_win32_printing_surface_create, \
+ (HDC hdc), (hdc), NULL )
+#else
+#define wxCAIRO_PLATFORM_METHODS(m)
+#endif
+
+#define wxFOR_ALL_CAIRO_METHODS(m) \
+ m( cairo_path_t*, cairo_copy_path, \
+ (cairo_t *cr), (cr), NULL ) \
+ m( cairo_t*, cairo_create, \
+ (cairo_surface_t *target), (target), NULL) \
+ m( cairo_surface_t*, cairo_get_target, \
+ (cairo_t *cr), (cr), NULL) \
+ m( cairo_surface_t*, cairo_image_surface_create, \
+ (cairo_format_t format, int width, int height), (format, width, height), NULL ) \
+ m( cairo_surface_t*, cairo_image_surface_create_for_data, \
+ (unsigned char *data, cairo_format_t format, int width, int height, int stride), (data, format, width, height, stride), NULL) \
+ m( cairo_bool_t, cairo_in_fill, \
+ (cairo_t *cr, double x, double y), (cr, x, y), false ) \
+ m( cairo_status_t, cairo_matrix_invert, \
+ (cairo_matrix_t *matrix), (matrix), NULL) \
+ m( cairo_pattern_t*, cairo_pattern_create_for_surface, \
+ (cairo_surface_t *surface), (surface), NULL) \
+ m( cairo_pattern_t*, cairo_pattern_create_linear, \
+ (double x0, double y0, double x1, double y1), (x0, y0, x1, y1), NULL) \
+ m( cairo_pattern_t*, cairo_pattern_create_radial, \
+ (double cx0, double cy0, double radius0, double cx1, double cy1, double radius1), (cx0, cy0, radius0, cx1, cy1, radius1), NULL) \
+ m( cairo_status_t, cairo_pattern_status, \
+ (cairo_pattern_t *pattern), (pattern), 4) \
+ m( cairo_t*, cairo_reference, \
+ (cairo_t *cr), (cr), NULL ) \
+ m( cairo_surface_t*, cairo_surface_create_similar, \
+ (cairo_surface_t *other, cairo_content_t content, int width, int height), (other, content, width, height), NULL) \
+ m( int, cairo_format_stride_for_width, \
+ (cairo_format_t format, int width), (format, width), 0) \
+ m( int, cairo_version, \
+ (), (), 0) \
+ m( int, cairo_image_surface_get_stride, \
+ (cairo_surface_t *surface), (surface), 0) \
+ m( unsigned char *, cairo_image_surface_get_data, \
+ (cairo_surface_t *surface), (surface), NULL) \
+ m( cairo_format_t, cairo_image_surface_get_format, \
+ (cairo_surface_t *surface), (surface), CAIRO_FORMAT_INVALID) \
+ m( cairo_surface_type_t, cairo_surface_get_type, \
+ (cairo_surface_t *surface), (surface), -1) \
+ wxCAIRO_PLATFORM_METHODS(m)
+
+
+#if wxUSE_PANGO
+#define wxFOR_ALL_PANGO_CAIRO_VOIDMETHODS(m) \
+ m( pango_cairo_update_layout, \
+ (cairo_t *cr, PangoLayout *layout), (cr, layout) ) \
+ m( pango_cairo_show_layout, \
+ (cairo_t *cr, PangoLayout *layout), (cr, layout) )
+#endif
+
+#define wxCAIRO_DECLARE_TYPE(rettype, name, args, argnames, defret) \
+ typedef rettype (*wxCAIRO_METHOD_TYPE(name)) args ; \
+ wxCAIRO_METHOD_TYPE(name) wxDL_METHOD_NAME(name);
+
+#define wxCAIRO_DECLARE_VOIDTYPE(name, args, argnames) \
+ wxCAIRO_DECLARE_TYPE(void, name, args, argnames, NULL)
+
+wxFOR_ALL_CAIRO_VOIDMETHODS(wxCAIRO_DECLARE_VOIDTYPE)
+wxFOR_ALL_CAIRO_METHODS(wxCAIRO_DECLARE_TYPE)
+
+
+class wxCairo
+{
+public:
+ static bool Initialize();
+
+ // for internal use only
+ static void CleanUp();
+
+private:
+ // the single wxCairo instance or NULL
+ static wxCairo *ms_lib;
+
+ wxCairo();
+ ~wxCairo();
+
+ bool IsOk();
+
+ wxDynamicLibrary m_libCairo;
+ wxDynamicLibrary m_libPangoCairo;
+
+ // true if we successfully loaded the libraries and can use them
+ //
+ // note that this field must have this name as it's used by wxDL_XXX macros
+ bool m_ok;
+
+public:
+
+ wxFOR_ALL_CAIRO_VOIDMETHODS(wxCAIRO_STATIC_VOIDMETHOD_DEFINE)
+ wxFOR_ALL_CAIRO_METHODS(wxCAIRO_STATIC_METHOD_DEFINE)
+#if wxUSE_PANGO // untested, uncomment to test compilation.
+ //wxFOR_ALL_PANGO_METHODS(wxDL_STATIC_METHOD_DEFINE)
+#endif
+
+ wxDECLARE_NO_COPY_CLASS(wxCairo);
+};
-wxCairoLibrary *wxCairoLibrary::s_lib = NULL;
+#define wxINIT_CAIRO_VOIDFUNC(name, params, args) \
+ wxCAIRO_METHOD_TYPE(name) wxCairo::name = NULL;
+
+#define wxINIT_CAIRO_FUNC(rettype, name, params, args, defret) \
+ wxCAIRO_METHOD_TYPE(name) wxCairo::name = NULL;
+
+wxFOR_ALL_CAIRO_VOIDMETHODS(wxINIT_CAIRO_VOIDFUNC)
+wxFOR_ALL_CAIRO_METHODS(wxINIT_CAIRO_FUNC)
+
+#undef wxINIT_CAIRO_FUNC
+
+wxCairo *wxCairo::ms_lib = NULL;
//----------------------------------------------------------------------------
// wxCairoLibrary
//----------------------------------------------------------------------------
-wxCairoLibrary::wxCairoLibrary()
+wxCairo::wxCairo()
{
- m_cairo_lib = NULL;
-
wxLogNull log;
- m_cairo_lib = new wxDynamicLibrary( wxT("libcairo.so") );
- m_ok = m_cairo_lib->IsLoaded();
- if (!m_ok) return;
- InitializeMethods();
+#ifdef __WXMSW__
+ wxString cairoDllStr("libcairo-2.dll");
+#else
+ wxString cairoDllStr("libcairo.so.2");
+#endif
+ m_libCairo.Load(cairoDllStr);
+ m_ok = m_libCairo.IsLoaded();
+ if ( !m_ok )
+ return;
+
+#if wxUSE_PANGO
+ m_libPangoCairo.Load("libpangocairo-1.0.so.0");
+ m_ok = m_libPangoCairo.IsLoaded();
+ if ( !m_ok )
+ {
+ m_libCairo.Unload();
+ return;
+ }
+#endif
+
+
+#define wxDO_LOAD_FUNC(name, nameStr) \
+ name = (wxCAIRO_METHOD_TYPE(name))m_libCairo.RawGetSymbol(nameStr); \
+ if ( !name ) \
+ return;
+
+#define wxLOAD_CAIRO_VOIDFUNC(name, params, args) \
+ wxDO_LOAD_FUNC(name, wxSTRINGIZE_T(name))
+
+#define wxLOAD_CAIRO_FUNC(rettype, name, params, args, defret) \
+ wxDO_LOAD_FUNC(name, wxSTRINGIZE_T(name))
+
+wxFOR_ALL_CAIRO_VOIDMETHODS(wxLOAD_CAIRO_VOIDFUNC)
+wxFOR_ALL_CAIRO_METHODS(wxLOAD_CAIRO_FUNC)
+
+#undef wxLOAD_CAIRO_FUNC
+
+ m_ok = true;
}
-wxCairoLibrary::~wxCairoLibrary()
+wxCairo::~wxCairo()
{
- if (m_cairo_lib)
- delete m_cairo_lib;
}
-/* static */ wxCairoLibrary* wxCairoLibrary::Get()
+/* static */ bool wxCairo::Initialize()
{
- if (s_lib)
- return s_lib;
-
- s_lib = new wxCairoLibrary();
- if (s_lib->IsOk())
- return s_lib;
-
- delete s_lib;
- s_lib = NULL;
-
- return NULL;
+ if ( !ms_lib )
+ {
+ ms_lib = new wxCairo();
+ if ( !ms_lib->IsOk() )
+ {
+ delete ms_lib;
+ ms_lib = NULL;
+ }
+ }
+
+ return ms_lib != NULL;
}
-/* static */ void wxCairoLibrary::CleanUp()
+/* static */ void wxCairo::CleanUp()
{
- if (s_lib)
+ if (ms_lib)
{
- delete s_lib;
- s_lib = NULL;
+ delete ms_lib;
+ ms_lib = NULL;
}
}
-bool wxCairoLibrary::IsOk()
+bool wxCairo::IsOk()
{
return m_ok;
}
-void wxCairoLibrary::InitializeMethods()
-{
- m_ok = false;
- bool success;
-
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_arc, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_arc_negative, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_clip, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_close_path, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_create, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_curve_to, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_destroy, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_fill, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_fill_preserve, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_get_target, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_image_surface_create_for_data, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_line_to, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_move_to, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_new_path, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_paint, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_add_color_stop_rgba, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_for_surface, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_linear, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_create_radial, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_destroy, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_set_extend, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_pattern_set_filter, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_rectangle, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_reset_clip, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_restore, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_rotate, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_save, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_scale, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_dash, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_fill_rule, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_cap, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_join, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_line_width, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_operator, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_source, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_set_source_rgba, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_stroke, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_stroke_preserve, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_surface_create_similar, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_surface_destroy, success )
- wxDL_METHOD_LOAD( m_cairo_lib, cairo_translate, success )
+// ============================================================================
+// implementation of the functions themselves
+// ============================================================================
- m_ok = true;
+bool wxCairoInit()
+{
+ return wxCairo::Initialize();
}
+extern "C"
+{
+
+#define wxIMPL_CAIRO_FUNC(rettype, name, params, args, defret) \
+ rettype name params \
+ { \
+ wxASSERT_MSG(wxCairo::Initialize(), "Cairo not initialized"); \
+ return wxCairo::name args; \
+ }
+
+#define wxIMPL_CAIRO_VOIDFUNC(name, params, args) \
+ wxIMPL_CAIRO_FUNC(void, name, params, args, NULL)
+
+// we currently link directly to Cairo on GTK since it is usually available there,
+// so don't use our cairo_xyz wrapper functions until the decision is made to
+// always load Cairo dynamically there.
+#ifndef __WXGTK__
+wxFOR_ALL_CAIRO_VOIDMETHODS(wxIMPL_CAIRO_VOIDFUNC)
+wxFOR_ALL_CAIRO_METHODS(wxIMPL_CAIRO_FUNC)
+#endif
+
+} // extern "C"
+
//----------------------------------------------------------------------------
// wxCairoModule
//----------------------------------------------------------------------------
-class wxCairoModule: public wxModule
+class wxCairoModule : public wxModule
{
public:
wxCairoModule() { }
- bool OnInit();
- void OnExit();
+ virtual bool OnInit();
+ virtual void OnExit();
private:
- DECLARE_DYNAMIC_CLASS(wxGtkPrintModule)
+ DECLARE_DYNAMIC_CLASS(wxCairoModule)
};
bool wxCairoModule::OnInit()
void wxCairoModule::OnExit()
{
- wxCairoLibrary::CleanUp();
+ wxCairo::CleanUp();
}
IMPLEMENT_DYNAMIC_CLASS(wxCairoModule, wxModule)
-#endif
- // wxUSE_CAIRO
+#endif // wxUSE_CAIRO
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