9f692b010e
It does so little now it's not worth having. And it should not have been a public header. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73096 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
443 lines
15 KiB
C++
443 lines
15 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/cairo.cpp
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// Purpose: Cairo library
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// Author: Anthony Betaudeau
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// Created: 2007-08-25
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// RCS-ID: $Id$
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// Copyright: (c) Anthony Bretaudeau
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_CAIRO
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// keep cairo.h from defining dllimport as we're defining the symbols inside
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// the wx dll in order to load them dynamically.
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#define cairo_public
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#include <cairo.h>
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#include "wx/dynlib.h"
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#ifdef __WXMSW__
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#include "wx/msw/wrapwin.h"
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#endif
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#ifdef __WXMAC__
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#include "wx/osx/private.h"
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#include <cairo-quartz.h>
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#endif
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#ifndef WX_PRECOMP
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#include "wx/module.h"
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#include "wx/log.h"
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#endif
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#define wxCAIRO_METHOD_TYPE(name) \
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wxCairo##name##_t
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#define wxCAIRO_STATIC_METHOD_DEFINE(rettype, name, args, argnames, defret) \
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static wxCAIRO_METHOD_TYPE(name) name;
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#define wxCAIRO_STATIC_VOIDMETHOD_DEFINE(name, args, argnames) \
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wxCAIRO_STATIC_METHOD_DEFINE(void, name, args, argnames, NULL)
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#define wxFOR_ALL_CAIRO_VOIDMETHODS(m) \
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m( cairo_append_path, \
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(cairo_t *cr, const cairo_path_t *path), (cr, path) ) \
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m( cairo_arc, \
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(cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2), (cr, xc, yc, radius, angle1, angle2) ) \
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m( cairo_arc_negative, \
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(cairo_t *cr, double xc, double yc, double radius, double angle1, double angle2), (cr, xc, yc, radius, angle1, angle2) ) \
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m( cairo_clip, \
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(cairo_t *cr), (cr) ) \
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m( cairo_close_path, \
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(cairo_t *cr), (cr) ) \
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m( cairo_curve_to, \
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(cairo_t *cr, double x1, double y1, double x2, double y2, double x3, double y3), (cr, x1, y1, x2, y2, x3, y3) ) \
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m( cairo_destroy, \
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(cairo_t *cr), (cr) ) \
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m( cairo_fill, \
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(cairo_t *cr), (cr) ) \
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m( cairo_fill_preserve, \
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(cairo_t *cr), (cr) ) \
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m( cairo_font_extents, \
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(cairo_t *cr, cairo_font_extents_t *extents), (cr, extents) ) \
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m( cairo_font_face_destroy, \
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(cairo_font_face_t *font_face), (font_face) ) \
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m( cairo_get_current_point, \
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(cairo_t *cr, double *x, double *y), (cr, x, y) ) \
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m( cairo_get_matrix, \
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(cairo_t *cr, cairo_matrix_t *matrix), (cr, matrix) ) \
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m( cairo_line_to, \
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(cairo_t *cr, double x, double y), (cr, x, y) ) \
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m( cairo_matrix_init, \
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(cairo_matrix_t *matrix, double xx, double yx, double xy, double yy, double x0, double y0), (matrix, xx, yx, xy, yy, x0, y0) ) \
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m( cairo_matrix_multiply, \
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(cairo_matrix_t *result, const cairo_matrix_t *a, const cairo_matrix_t *b), (result, a, b) ) \
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m( cairo_matrix_rotate, \
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(cairo_matrix_t *matrix, double radians), (matrix, radians) ) \
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m( cairo_matrix_scale, \
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(cairo_matrix_t *matrix, double sx, double sy), (matrix, sx, sy) ) \
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m( cairo_matrix_transform_distance, \
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(const cairo_matrix_t *matrix, double *dx, double *dy), (matrix, dx, dy) ) \
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m( cairo_matrix_transform_point, \
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(const cairo_matrix_t *matrix, double *x, double *y), (matrix, x, y) ) \
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m( cairo_matrix_translate, \
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(cairo_matrix_t *matrix, double tx, double ty), (matrix, tx, ty) ) \
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m( cairo_move_to, \
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(cairo_t *cr, double x, double y), (cr, x, y) ) \
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m( cairo_new_path, \
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(cairo_t *cr), (cr) ) \
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m( cairo_paint, \
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(cairo_t *cr), (cr) ) \
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m( cairo_paint_with_alpha, \
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(cairo_t *cr, double alpha), (cr, alpha) ) \
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m( cairo_path_destroy, \
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(cairo_path_t *path), (path) ) \
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m( cairo_pattern_add_color_stop_rgba, \
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(cairo_pattern_t *pattern, double offset, double red, double green, double blue, double alpha), (pattern, offset, red, green, blue, alpha) ) \
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m( cairo_pattern_destroy, \
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(cairo_pattern_t *pattern), (pattern) ) \
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m( cairo_pattern_set_extend, \
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(cairo_pattern_t *pattern, cairo_extend_t extend), (pattern, extend) ) \
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m( cairo_pattern_set_filter, \
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(cairo_pattern_t *pattern, cairo_filter_t filter), (pattern, filter) ) \
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m( cairo_pop_group_to_source, \
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(cairo_t *cr), (cr) ) \
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m( cairo_push_group, \
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(cairo_t *cr), (cr) ) \
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m( cairo_rectangle, \
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(cairo_t *cr, double x, double y, double width, double height), (cr, x, y, width, height) ) \
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m( cairo_reset_clip, \
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(cairo_t *cr), (cr) ) \
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m( cairo_restore, \
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(cairo_t *cr), (cr) ) \
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m( cairo_rotate, \
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(cairo_t *cr, double angle), (cr, angle) ) \
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m( cairo_save, \
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(cairo_t *cr), (cr) ) \
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m( cairo_scale, \
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(cairo_t *cr, double sx, double sy), (cr, sx, sy) ) \
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m( cairo_select_font_face, \
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(cairo_t *cr, const char *family, cairo_font_slant_t slant, cairo_font_weight_t weight), (cr, family, slant, weight) ) \
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m( cairo_set_antialias, \
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(cairo_t *cr, cairo_antialias_t antialias), (cr, antialias) ) \
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m( cairo_set_dash, \
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(cairo_t *cr, const double *dashes, int num_dashes, double offset), (cr, dashes, num_dashes, offset) ) \
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m( cairo_set_fill_rule, \
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(cairo_t *cr, cairo_fill_rule_t fill_rule), (cr, fill_rule) ) \
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m( cairo_set_font_face, \
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(cairo_t *cr, cairo_font_face_t *font_face), (cr, font_face) ) \
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m( cairo_set_font_size, \
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(cairo_t *cr, double size), (cr, size) ) \
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m( cairo_set_line_cap, \
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(cairo_t *cr, cairo_line_cap_t line_cap), (cr, line_cap) ) \
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m( cairo_set_line_join, \
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(cairo_t *cr, cairo_line_join_t line_join), (cr, line_join) ) \
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m( cairo_set_line_width, \
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(cairo_t *cr, double width), (cr, width) ) \
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m( cairo_set_matrix, \
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(cairo_t *cr, const cairo_matrix_t *matrix), (cr, matrix) ) \
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m( cairo_set_operator, \
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(cairo_t *cr, cairo_operator_t op), (cr, op) ) \
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m( cairo_set_source, \
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(cairo_t *cr, cairo_pattern_t *source), (cr, source) ) \
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m( cairo_set_source_rgba, \
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(cairo_t *cr, double red, double green, double blue, double alpha), (cr, red, green, blue, alpha) ) \
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m( cairo_show_text, \
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(cairo_t *cr, const char *utf8), (cr, utf8) ) \
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m( cairo_stroke, \
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(cairo_t *cr), (cr) ) \
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m( cairo_stroke_extents, \
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(cairo_t *cr, double *x1, double *y1, double *x2, double *y2), (cr, x1, y1, x2, y2) ) \
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m( cairo_stroke_preserve, \
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(cairo_t *cr), (cr) ) \
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m( cairo_surface_destroy, \
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(cairo_surface_t *surface), (surface) ) \
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m( cairo_text_extents, \
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(cairo_t *cr, const char *utf8, cairo_text_extents_t *extents), (cr, utf8, extents) ) \
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m( cairo_transform, \
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(cairo_t *cr, const cairo_matrix_t *matrix), (cr, matrix) ) \
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m( cairo_translate, \
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(cairo_t *cr, double tx, double ty), (cr, tx, ty) ) \
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#ifdef __WXMAC__
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#define wxCAIRO_PLATFORM_METHODS(m) \
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m( cairo_font_face_t*, cairo_quartz_font_face_create_for_cgfont, \
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(CGFontRef font), (font), NULL ) \
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m( cairo_surface_t*, cairo_quartz_surface_create_for_cg_context, \
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(CGContextRef cgContext, unsigned int width, unsigned int height), (cgContext, width, height), NULL )
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#elif defined(__WXMSW__)
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#define wxCAIRO_PLATFORM_METHODS(m) \
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m( cairo_surface_t*, cairo_win32_surface_create, \
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(HDC hdc), (hdc), NULL ) \
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m( cairo_surface_t*, cairo_win32_printing_surface_create, \
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(HDC hdc), (hdc), NULL )
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#else
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#define wxCAIRO_PLATFORM_METHODS(m)
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#endif
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#define wxFOR_ALL_CAIRO_METHODS(m) \
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m( cairo_path_t*, cairo_copy_path, \
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(cairo_t *cr), (cr), NULL ) \
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m( cairo_t*, cairo_create, \
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(cairo_surface_t *target), (target), NULL) \
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m( cairo_surface_t*, cairo_get_target, \
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(cairo_t *cr), (cr), NULL) \
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m( cairo_surface_t*, cairo_image_surface_create, \
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(cairo_format_t format, int width, int height), (format, width, height), NULL ) \
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m( cairo_surface_t*, cairo_image_surface_create_for_data, \
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(unsigned char *data, cairo_format_t format, int width, int height, int stride), (data, format, width, height, stride), NULL) \
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m( cairo_bool_t, cairo_in_fill, \
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(cairo_t *cr, double x, double y), (cr, x, y), false ) \
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m( cairo_status_t, cairo_matrix_invert, \
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(cairo_matrix_t *matrix), (matrix), NULL) \
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m( cairo_pattern_t*, cairo_pattern_create_for_surface, \
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(cairo_surface_t *surface), (surface), NULL) \
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m( cairo_pattern_t*, cairo_pattern_create_linear, \
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(double x0, double y0, double x1, double y1), (x0, y0, x1, y1), NULL) \
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m( cairo_pattern_t*, cairo_pattern_create_radial, \
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(double cx0, double cy0, double radius0, double cx1, double cy1, double radius1), (cx0, cy0, radius0, cx1, cy1, radius1), NULL) \
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m( cairo_status_t, cairo_pattern_status, \
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(cairo_pattern_t *pattern), (pattern), 4) \
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m( cairo_t*, cairo_reference, \
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(cairo_t *cr), (cr), NULL ) \
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m( cairo_surface_t*, cairo_surface_create_similar, \
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(cairo_surface_t *other, cairo_content_t content, int width, int height), (other, content, width, height), NULL) \
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m( int, cairo_format_stride_for_width, \
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(cairo_format_t format, int width), (format, width), 0) \
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m( int, cairo_version, \
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(), (), 0) \
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m( int, cairo_image_surface_get_stride, \
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(cairo_surface_t *surface), (surface), 0) \
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m( unsigned char *, cairo_image_surface_get_data, \
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(cairo_surface_t *surface), (surface), NULL) \
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m( cairo_format_t, cairo_image_surface_get_format, \
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(cairo_surface_t *surface), (surface), CAIRO_FORMAT_INVALID) \
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m( cairo_surface_type_t, cairo_surface_get_type, \
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(cairo_surface_t *surface), (surface), -1) \
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wxCAIRO_PLATFORM_METHODS(m)
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#if wxUSE_PANGO
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#define wxFOR_ALL_PANGO_CAIRO_VOIDMETHODS(m) \
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m( pango_cairo_update_layout, \
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(cairo_t *cr, PangoLayout *layout), (cr, layout) ) \
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m( pango_cairo_show_layout, \
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(cairo_t *cr, PangoLayout *layout), (cr, layout) )
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#endif
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#define wxCAIRO_DECLARE_TYPE(rettype, name, args, argnames, defret) \
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typedef rettype (*wxCAIRO_METHOD_TYPE(name)) args ; \
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wxCAIRO_METHOD_TYPE(name) wxDL_METHOD_NAME(name);
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#define wxCAIRO_DECLARE_VOIDTYPE(name, args, argnames) \
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wxCAIRO_DECLARE_TYPE(void, name, args, argnames, NULL)
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wxFOR_ALL_CAIRO_VOIDMETHODS(wxCAIRO_DECLARE_VOIDTYPE)
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wxFOR_ALL_CAIRO_METHODS(wxCAIRO_DECLARE_TYPE)
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class wxCairo
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{
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public:
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static bool Initialize();
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// for internal use only
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static void CleanUp();
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private:
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// the single wxCairo instance or NULL
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static wxCairo *ms_lib;
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wxCairo();
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~wxCairo();
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bool IsOk();
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wxDynamicLibrary m_libCairo;
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wxDynamicLibrary m_libPangoCairo;
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// true if we successfully loaded the libraries and can use them
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//
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// note that this field must have this name as it's used by wxDL_XXX macros
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bool m_ok;
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public:
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wxFOR_ALL_CAIRO_VOIDMETHODS(wxCAIRO_STATIC_VOIDMETHOD_DEFINE)
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wxFOR_ALL_CAIRO_METHODS(wxCAIRO_STATIC_METHOD_DEFINE)
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#if wxUSE_PANGO // untested, uncomment to test compilation.
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//wxFOR_ALL_PANGO_METHODS(wxDL_STATIC_METHOD_DEFINE)
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#endif
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wxDECLARE_NO_COPY_CLASS(wxCairo);
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};
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#define wxINIT_CAIRO_VOIDFUNC(name, params, args) \
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wxCAIRO_METHOD_TYPE(name) wxCairo::name = NULL;
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#define wxINIT_CAIRO_FUNC(rettype, name, params, args, defret) \
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wxCAIRO_METHOD_TYPE(name) wxCairo::name = NULL;
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wxFOR_ALL_CAIRO_VOIDMETHODS(wxINIT_CAIRO_VOIDFUNC)
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wxFOR_ALL_CAIRO_METHODS(wxINIT_CAIRO_FUNC)
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#undef wxINIT_CAIRO_FUNC
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wxCairo *wxCairo::ms_lib = NULL;
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//----------------------------------------------------------------------------
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// wxCairoLibrary
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//----------------------------------------------------------------------------
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wxCairo::wxCairo()
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{
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wxLogNull log;
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#ifdef __WXMSW__
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wxString cairoDllStr("libcairo-2.dll");
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#else
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wxString cairoDllStr("libcairo.so.2");
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#endif
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m_libCairo.Load(cairoDllStr);
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m_ok = m_libCairo.IsLoaded();
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if ( !m_ok )
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return;
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#if wxUSE_PANGO
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m_libPangoCairo.Load("libpangocairo-1.0.so.0");
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m_ok = m_libPangoCairo.IsLoaded();
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if ( !m_ok )
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{
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m_libCairo.Unload();
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return;
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}
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#endif
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#define wxDO_LOAD_FUNC(name, nameStr) \
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name = (wxCAIRO_METHOD_TYPE(name))m_libCairo.RawGetSymbol(nameStr); \
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if ( !name ) \
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return;
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#define wxLOAD_CAIRO_VOIDFUNC(name, params, args) \
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wxDO_LOAD_FUNC(name, wxSTRINGIZE_T(name))
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#define wxLOAD_CAIRO_FUNC(rettype, name, params, args, defret) \
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wxDO_LOAD_FUNC(name, wxSTRINGIZE_T(name))
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wxFOR_ALL_CAIRO_VOIDMETHODS(wxLOAD_CAIRO_VOIDFUNC)
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wxFOR_ALL_CAIRO_METHODS(wxLOAD_CAIRO_FUNC)
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#undef wxLOAD_CAIRO_FUNC
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m_ok = true;
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}
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wxCairo::~wxCairo()
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{
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}
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/* static */ bool wxCairo::Initialize()
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{
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if ( !ms_lib )
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{
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ms_lib = new wxCairo();
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if ( !ms_lib->IsOk() )
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{
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delete ms_lib;
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ms_lib = NULL;
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}
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}
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return ms_lib != NULL;
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}
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/* static */ void wxCairo::CleanUp()
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{
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if (ms_lib)
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{
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delete ms_lib;
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ms_lib = NULL;
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}
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}
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bool wxCairo::IsOk()
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{
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return m_ok;
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}
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// ============================================================================
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// implementation of the functions themselves
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// ============================================================================
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bool wxCairoInit()
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{
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return wxCairo::Initialize();
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}
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void wxCairoCleanUp()
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{
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wxCairo::CleanUp();
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}
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extern "C"
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{
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#define wxIMPL_CAIRO_FUNC(rettype, name, params, args, defret) \
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rettype name params \
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{ \
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wxASSERT_MSG(wxCairo::Initialize(), "Cairo not initialized"); \
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return wxCairo::name args; \
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}
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#define wxIMPL_CAIRO_VOIDFUNC(name, params, args) \
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wxIMPL_CAIRO_FUNC(void, name, params, args, NULL)
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// we currently link directly to Cairo on GTK since it is usually available there,
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// so don't use our cairo_xyz wrapper functions until the decision is made to
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// always load Cairo dynamically there.
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#ifndef __WXGTK__
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wxFOR_ALL_CAIRO_VOIDMETHODS(wxIMPL_CAIRO_VOIDFUNC)
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wxFOR_ALL_CAIRO_METHODS(wxIMPL_CAIRO_FUNC)
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#endif
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} // extern "C"
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//----------------------------------------------------------------------------
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// wxCairoModule
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//----------------------------------------------------------------------------
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class wxCairoModule : public wxModule
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{
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public:
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wxCairoModule() { }
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virtual bool OnInit();
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virtual void OnExit();
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private:
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DECLARE_DYNAMIC_CLASS(wxCairoModule)
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};
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bool wxCairoModule::OnInit()
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{
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return true;
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}
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void wxCairoModule::OnExit()
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{
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wxCairo::CleanUp();
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}
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IMPLEMENT_DYNAMIC_CLASS(wxCairoModule, wxModule)
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#endif // wxUSE_CAIRO
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