ObjFW  Diff

Differences From Artifact [ff82ab6aae]:

To Artifact [fa5fd20716]:


1
2

3
4
5
6
7
8
9
10
11
12
13
14
15
16
17


18

19


20


21



22












































23














24
25
26
27
28
29

30
31
32
33




34
35
36
37
38
39
40
1

2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97




98
99
100
101
102
103
104
105
106
107
108

-
+















+
+

+

+
+

+
+
-
+
+
+

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
+
+
+
+
+
+
+
+
+
+
+
+
+






+
-
-
-
-
+
+
+
+







/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#include <math.h>

#import "OFColor.h"
#import "OFConcreteColor.h"
#import "OFOnce.h"
#import "OFString.h"
#import "OFTaggedPointerColor.h"

@interface OFPlaceholderColor: OFColor
@end
#import "OFInvalidArgumentException.h"

@interface OFConcreteColorSingleton: OFConcreteColor
@end

static struct {
	Class isa;
} placeholder;

#ifdef OF_OBJFW_RUNTIME
static const float allowedImprecision = 0.0000001;
#endif

@implementation OFPlaceholderColor
- (instancetype)initWithRed: (float)red
		      green: (float)green
		       blue: (float)blue
		      alpha: (float)alpha
{
#ifdef OF_OBJFW_RUNTIME
	uint8_t redInt = nearbyintf(red * 255);
	uint8_t greenInt = nearbyintf(green * 255);
	uint8_t blueInt = nearbyintf(blue * 255);

	if (fabsf(red * 255 - redInt) < allowedImprecision &&
	    fabsf(green * 255 - greenInt) < allowedImprecision &&
	    fabsf(blue * 255 - blueInt) < allowedImprecision && alpha == 1) {
		id ret = [OFTaggedPointerColor colorWithRed: redInt
						      green: greenInt
						       blue: blueInt];

		if (ret != nil)
			return ret;
	}
#endif

	return (id)[[OFConcreteColor alloc] initWithRed: red
						  green: green
						   blue: blue
						  alpha: alpha];
}

OF_SINGLETON_METHODS
@end

@implementation OFConcreteColorSingleton
OF_SINGLETON_METHODS
@end

@implementation OFColor
+ (void)initialize
{
	if (self == [OFColor class])
		object_setClass((id)&placeholder, [OFPlaceholderColor class]);
}

+ (instancetype)alloc
{
	if (self == [OFColor class])
		return (id)&placeholder;

	return [super alloc];
}

#define PREDEFINED_COLOR(name, redValue, greenValue, blueValue)		   \
	static OFColor *name##Color = nil;				   \
									   \
	static void							   \
	initPredefinedColor_##name(void)				   \
	{								   \
		name##Color = [[OFConcreteColorSingleton alloc]		   \
		name##Color = [[OFColor alloc] initWithRed: redValue	   \
						     green: greenValue	   \
						      blue: blueValue	   \
						     alpha: 1];		   \
		    initWithRed: redValue				   \
			  green: greenValue				   \
			   blue: blueValue				   \
			  alpha: 1];					   \
	}								   \
									   \
	+ (OFColor *)name						   \
	{								   \
		static OFOnceControl onceControl = OFOnceControlInitValue; \
		OFOnce(&onceControl, initPredefinedColor_##name);	   \
									   \
70
71
72
73
74
75
76
77
78
79


80
81
82
83
84
85

86
87
88
89
90
91
92
93




94



95

96
97
98
99
100


101
102
103
104
105
106
107
108





109
110

111
112

113
114

115
116

117
118
119
120
121
122
123

124
125
126


127
128
129





130
131
132
133

134
135
136
137

138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154


155
156
157






158

159
160


161
162
138
139
140
141
142
143
144



145
146






147








148
149
150
151
152
153
154
155

156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177

178
179

180
181

182
183

184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199

200
201
202
203
204
205
206
207

208
209
210
211

212




213
214
215
216
217
218
219
220
221
222
223
224
225
226
227



228
229
230
231
232
233
234
235


236
237
238
239







-
-
-
+
+
-
-
-
-
-
-
+
-
-
-
-
-
-
-
-
+
+
+
+

+
+
+
-
+





+
+








+
+
+
+
+

-
+

-
+

-
+

-
+







+



+
+


-
+
+
+
+
+



-
+



-
+
-
-
-
-













+
+
-
-
-
+
+
+
+
+
+

+
-
-
+
+


}

- (instancetype)initWithRed: (float)red
		      green: (float)green
		       blue: (float)blue
		      alpha: (float)alpha
{
	self = [super init];

	@try {
	if ([self isMemberOfClass: [OFColor class]]) {
		@try {
		if (red < 0.0 || red > 1.0 ||
		    green < 0.0 || green > 1.0 ||
		    blue < 0.0 || blue > 1.0 ||
		    alpha < 0.0 || alpha > 1.0)
			@throw [OFInvalidArgumentException exception];

			[self doesNotRecognizeSelector: _cmd];
		_red = red;
		_green = green;
		_blue = blue;
		_alpha = alpha;
	} @catch (id e) {
		[self release];
		@throw e;
	}
		} @catch (id e) {
			[self release];
			@throw e;
		}

		abort();
	}

	return self;
	return [super init];
}

- (bool)isEqual: (id)object
{
	OFColor *other;
	float red, green, blue, alpha;
	float otherRed, otherGreen, otherBlue, otherAlpha;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFColor class]])
		return false;

	other = object;
	[self getRed: &red green: &green blue: &blue alpha: &alpha];
	[other getRed: &otherRed
		green: &otherGreen
		 blue: &otherBlue
		alpha: &otherAlpha];

	if (other->_red != _red)
	if (otherRed != red)
		return false;
	if (other->_green != _green)
	if (otherGreen != green)
		return false;
	if (other->_blue != _blue)
	if (otherBlue != blue)
		return false;
	if (other->_alpha != _alpha)
	if (otherAlpha != alpha)
		return false;

	return true;
}

- (unsigned long)hash
{
	float red, green, blue, alpha;
	unsigned long hash;
	float tmp;

	[self getRed: &red green: &green blue: &blue alpha: &alpha];

	OFHashInit(&hash);

	tmp = OFToLittleEndianFloat(_red);
	tmp = OFToLittleEndianFloat(red);
	for (uint_fast8_t i = 0; i < sizeof(float); i++)
		OFHashAddByte(&hash, ((char *)&tmp)[i]);

	tmp = OFToLittleEndianFloat(green);
	for (uint_fast8_t i = 0; i < sizeof(float); i++)
		OFHashAddByte(&hash, ((char *)&tmp)[i]);

	tmp = OFToLittleEndianFloat(_green);
	tmp = OFToLittleEndianFloat(blue);
	for (uint_fast8_t i = 0; i < sizeof(float); i++)
		OFHashAddByte(&hash, ((char *)&tmp)[i]);

	tmp = OFToLittleEndianFloat(_blue);
	tmp = OFToLittleEndianFloat(alpha);
	for (uint_fast8_t i = 0; i < sizeof(float); i++)
		OFHashAddByte(&hash, ((char *)&tmp)[i]);

	tmp = OFToLittleEndianFloat(_alpha);
	for (uint_fast8_t i = 0; i < sizeof(float); i++)
		OFHashAddByte(&hash, ((char *)&tmp)[i]);

	OFHashFinalize(&hash);

	return hash;
}

- (void)getRed: (float *)red
	 green: (float *)green
	  blue: (float *)blue
	 alpha: (float *)alpha
{
	OF_UNRECOGNIZED_SELECTOR
}
	*red = _red;
	*green = _green;
	*blue = _blue;

- (OFString *)description
{
	float red, green, blue, alpha;

	[self getRed: &red green: &green blue: &blue alpha: &alpha];

	return [OFString stringWithFormat:
	if (alpha != NULL)
		*alpha = _alpha;
	    @"<%@ red=%f green=%f blue=%f alpha=%f>",
	    self.class, red, green, blue, alpha];
}
@end