Initial commit, with some minor changes from orig (date, exec bit, line endings, /usr/bin/env)

2023-03-27 23:22:12 -04:00 · 2008-08-19 11:01:28 -04:00 · 2008-08-19 11:01:28 -04:00 · 9196cb13aa
commit 9196cb13aa
117 changed files with 16536 additions and 0 deletions
--- a/ext/cvfont.cpp
+++ b/ext/cvfont.cpp
@ -0,0 +1,173 @@
+/************************************************************
+
+   cvfont.cpp -
+
+   $Author: lsxi $
+
+   Copyright (C) 2005-2006 Masakazu Yonekura
+
+************************************************************/
+#include "cvfont.h"
+/*
+ * Document-class: OpenCV::CvFont
+ *
+ * Font structure that can be passed to text rendering functions. 
+ * see CvMat#put_text, CvMat#put_text!
+ */
+
+__NAMESPACE_BEGIN_OPENCV
+__NAMESPACE_BEGIN_CVFONT
+
+VALUE rb_klass;
+
+VALUE
+rb_class()
+{
+  return rb_klass;
+}
+
+void
+define_ruby_class()
+{
+  if (rb_klass)
+    return;
+  /* 
+   * opencv = rb_define_module("OpenCV");
+   * 
+   * note: this comment is used by rdoc.
+   */
+  VALUE opencv = rb_module_opencv();
+  
+  rb_klass = rb_define_class_under(opencv, "CvFont", rb_cObject);
+  rb_define_alloc_func(rb_klass, rb_allocate);
+  VALUE face = rb_hash_new();
+  rb_define_const(rb_klass, "FACE", face);
+  rb_hash_aset(face, ID2SYM(rb_intern("simplex")), INT2FIX(CV_FONT_HERSHEY_SIMPLEX));
+  rb_hash_aset(face, ID2SYM(rb_intern("plain")), INT2FIX(CV_FONT_HERSHEY_PLAIN));
+  rb_hash_aset(face, ID2SYM(rb_intern("duplex")), INT2FIX(CV_FONT_HERSHEY_DUPLEX));
+  rb_hash_aset(face, ID2SYM(rb_intern("triplex")), INT2FIX(CV_FONT_HERSHEY_TRIPLEX));
+  rb_hash_aset(face, ID2SYM(rb_intern("complex_small")), INT2FIX(CV_FONT_HERSHEY_COMPLEX_SMALL));
+  rb_hash_aset(face, ID2SYM(rb_intern("script_simplex")), INT2FIX(CV_FONT_HERSHEY_SCRIPT_SIMPLEX));
+  rb_hash_aset(face, ID2SYM(rb_intern("script_complex")), INT2FIX(CV_FONT_HERSHEY_SCRIPT_COMPLEX));
+
+  VALUE default_option = rb_hash_new();
+  rb_define_const(rb_klass, "FONT_OPTION", default_option);
+  rb_hash_aset(default_option, ID2SYM(rb_intern("hscale")), rb_float_new(1.0));
+  rb_hash_aset(default_option, ID2SYM(rb_intern("vscale")), rb_float_new(1.0));
+  rb_hash_aset(default_option, ID2SYM(rb_intern("shear")), INT2FIX(0));
+  rb_hash_aset(default_option, ID2SYM(rb_intern("thickness")), INT2FIX(1));
+  rb_hash_aset(default_option, ID2SYM(rb_intern("line_type")), INT2FIX(8));
+  
+  rb_define_private_method(rb_klass, "initialize", RUBY_METHOD_FUNC(rb_initialize), -1);
+}
+
+VALUE
+rb_allocate(VALUE klass)
+{
+  CvFont *ptr;
+  return Data_Make_Struct(klass, CvFont, 0, -1, ptr);
+}
+
+
+/*
+ * call-seq:
+ *   CvFont.new(<i>face[,font_option]</i>) -> font
+ *
+ * Create font object.
+ * <i>face</i> is font name identifier. 
+ * 
+ * Only a subset of Hershey fonts (http://sources.isc.org/utils/misc/hershey-font.txt) are supported now:
+ * * :simplex - normal size sans-serif font
+ * * :plain - small size sans-serif font
+ * * :duplex - normal size sans-serif font (more complex than :simplex)
+ * * :complex - normal size serif font
+ * * :triplex - normal size serif font (more complex than :complex)
+ * * :complex_small - smaller version of :complex
+ * * :script_simplex - hand-writing style font
+ * * :script_complex - more complex variant of :script_simplex
+ *
+ * <i>font_option</i> should be Hash include these keys.
+ *   :hscale
+ *     Horizontal scale. If equal to 1.0, the characters have the original width depending on the font type.
+ *     If equal to 0.5, the characters are of half the original width.
+ *   :vscale
+ *     Vertical scale. If equal to 1.0, the characters have the original height depending on the font type.
+ *     If equal to 0.5, the characters are of half the original height.
+ *   :shear
+ *     Approximate tangent of the character slope relative to the vertical line.
+ *     Zero value means a non-italic font, 1.0f means ~45degree slope, etc.
+ *   :thickness
+ *     Thickness of the text strokes.
+ *   :line_type
+ *     Type of the strokes, see CvMat#Line description.
+ *   :italic
+ *     If value is not nil or false that means italic or oblique font.
+ *
+ * note: <i>font_option</i>'s default value is CvFont::FONT_OPTION.
+ *
+ * e.g. Create Font
+ *   OpenCV::CvFont.new(:simplex, :hscale => 2, :vslace => 2, :italic => true)
+ *   # create 2x bigger than normal, italic type font.
+ */
+VALUE
+rb_initialize(int argc, VALUE *argv, VALUE self)
+{
+  VALUE face, font_option;
+  rb_scan_args(argc, argv, "11", &face, &font_option);
+  Check_Type(face, T_SYMBOL);
+  face = rb_hash_aref(rb_const_get(cCvFont::rb_class(), rb_intern("FACE")), face);
+  if (NIL_P(face)) {
+    rb_raise(rb_eArgError, "undefined face.");
+  }
+  font_option = FONT_OPTION(font_option);
+  /*
+  cvInitFont(CVFONT(self),
+	     (FIX2INT(face) | FO_ITALIC(font_option)),
+	     FO_HSCALE(font_option),
+	     FO_VSCALE(font_option),
+	     FO_SHEAR(font_option),
+	     FO_THICKNESS(font_option),
+	     FO_LINE_TYPE(font_option));
+  */
+  return self;
+}
+
+
+VALUE
+rb_face(VALUE self)
+{
+  return FIX2INT(CVFONT(self)->font_face);
+}
+
+VALUE
+rb_hscale(VALUE self)
+{
+  return rb_float_new(CVFONT(self)->hscale);
+}
+
+VALUE
+rb_vscale(VALUE self)
+{
+  return rb_float_new(CVFONT(self)->vscale);
+}
+
+VALUE
+rb_shear(VALUE self)
+{
+  return rb_float_new(CVFONT(self)->shear);
+}
+
+VALUE
+rb_thickness(VALUE self)
+{
+  return FIX2INT(CVFONT(self)->thickness);
+}
+
+VALUE
+rb_line_type(VALUE self)
+{
+  return FIX2INT(CVFONT(self)->line_type);
+}
+
+__NAMESPACE_END_CVFONT
+__NAMESPACE_END_OPENCV