Class: Quartz::ImageSource
- Inherits:
-
Object
- Object
- Quartz::ImageSource
- Defined in:
- lib/rubyquartz/image_source.rb,
ext/image_source.c
Class Method Summary collapse
Instance Method Summary collapse
- #[](index) ⇒ Object
-
#initialize(options) ⇒ ImageSource
constructor
A new instance of ImageSource.
- #size ⇒ Object
- #type ⇒ Object
Constructor Details
#initialize(options) ⇒ ImageSource
Returns a new instance of ImageSource.
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# File 'lib/rubyquartz/image_source.rb', line 29 def initialize() path = [:path] if path _initialize_with_path(path) return end if data = [:data] _initialize_with_data(data) return end # TODO: Add various other creation types raise "Cannot determine how to create image from given options" end |
Class Method Details
.name_for_type_identifier(type_value) ⇒ Object
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# File 'ext/image_source.c', line 94
static VALUE image_source_name_for_type_identifier(VALUE self, VALUE type_value)
{
CFStringRef type = _copy_string_for_str(type_value);
CFStringRef name = UTTypeCopyDescription(type);
CFRelease(type);
if (!name)
rb_raise(rb_eException, "No name available for type");
VALUE result = _value_for_string(name);
CFRelease(name);
return result;
}
|
.type_identifiers ⇒ Object
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# File 'ext/image_source.c', line 77
static VALUE image_source_get_type_identifiers(VALUE self)
{
CFArrayRef typeIdentifiers = CGImageSourceCopyTypeIdentifiers();
CFIndex typeIdentifierIndex = CFArrayGetCount(typeIdentifiers);
VALUE strings = rb_ary_new();
while (typeIdentifierIndex--) {
CFStringRef typeIdentifier = CFArrayGetValueAtIndex(typeIdentifiers, typeIdentifierIndex);
VALUE str = _value_for_string(typeIdentifier);
rb_ary_unshift(strings, str);
}
CFRelease(typeIdentifiers);
return strings;
}
|
Instance Method Details
#[](index) ⇒ Object
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# File 'lib/rubyquartz/image_source.rb', line 46 def[](index) Image.new(:image_source => self, :index => index) end |
#size ⇒ Object
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# File 'ext/image_source.c', line 113
static VALUE image_source_get_count(VALUE self)
{
return INT2NUM(CGImageSourceGetCount(image_source_get(self)));
}
|
#type ⇒ Object
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# File 'ext/image_source.c', line 108
static VALUE image_source_get_type(VALUE self)
{
return _value_for_string(CGImageSourceGetType(image_source_get(self)));
}
|