1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "color.h"
8
9 #include "JS_Context.h"
10 #include "JS_Define.h"
11 #include "JS_EventHandler.h"
12 #include "JS_Object.h"
13 #include "JS_Runtime.h"
14 #include "JS_Value.h"
15 #include "fpdfsdk/include/javascript/IJavaScript.h"
16
17 /* -------------------------- color -------------------------- */
18
19 BEGIN_JS_STATIC_CONST(CJS_Color)
END_JS_STATIC_CONST()20 END_JS_STATIC_CONST()
21
22 BEGIN_JS_STATIC_PROP(CJS_Color)
23 JS_STATIC_PROP_ENTRY(black)
24 JS_STATIC_PROP_ENTRY(blue)
25 JS_STATIC_PROP_ENTRY(cyan)
26 JS_STATIC_PROP_ENTRY(dkGray)
27 JS_STATIC_PROP_ENTRY(gray)
28 JS_STATIC_PROP_ENTRY(green)
29 JS_STATIC_PROP_ENTRY(ltGray)
30 JS_STATIC_PROP_ENTRY(magenta)
31 JS_STATIC_PROP_ENTRY(red)
32 JS_STATIC_PROP_ENTRY(transparent)
33 JS_STATIC_PROP_ENTRY(white)
34 JS_STATIC_PROP_ENTRY(yellow)
35 END_JS_STATIC_PROP()
36
37 BEGIN_JS_STATIC_METHOD(CJS_Color)
38 JS_STATIC_METHOD_ENTRY(convert)
39 JS_STATIC_METHOD_ENTRY(equal)
40 END_JS_STATIC_METHOD()
41
42 IMPLEMENT_JS_CLASS(CJS_Color, color)
43
44 color::color(CJS_Object* pJSObject) : CJS_EmbedObj(pJSObject) {
45 m_crTransparent = CPWL_Color(COLORTYPE_TRANSPARENT);
46 m_crBlack = CPWL_Color(COLORTYPE_GRAY, 0);
47 m_crWhite = CPWL_Color(COLORTYPE_GRAY, 1);
48 m_crRed = CPWL_Color(COLORTYPE_RGB, 1, 0, 0);
49 m_crGreen = CPWL_Color(COLORTYPE_RGB, 0, 1, 0);
50 m_crBlue = CPWL_Color(COLORTYPE_RGB, 0, 0, 1);
51 m_crCyan = CPWL_Color(COLORTYPE_CMYK, 1, 0, 0, 0);
52 m_crMagenta = CPWL_Color(COLORTYPE_CMYK, 0, 1, 0, 0);
53 m_crYellow = CPWL_Color(COLORTYPE_CMYK, 0, 0, 1, 0);
54 m_crDKGray = CPWL_Color(COLORTYPE_GRAY, 0.25);
55 m_crGray = CPWL_Color(COLORTYPE_GRAY, 0.5);
56 m_crLTGray = CPWL_Color(COLORTYPE_GRAY, 0.75);
57 }
58
~color()59 color::~color() {
60 }
61
ConvertPWLColorToArray(const CPWL_Color & color,CJS_Array & array)62 void color::ConvertPWLColorToArray(const CPWL_Color& color, CJS_Array& array) {
63 switch (color.nColorType) {
64 case COLORTYPE_TRANSPARENT:
65 array.SetElement(0, CJS_Value(array.GetJSRuntime(), "T"));
66 break;
67 case COLORTYPE_GRAY:
68 array.SetElement(0, CJS_Value(array.GetJSRuntime(), "G"));
69 array.SetElement(1, CJS_Value(array.GetJSRuntime(), color.fColor1));
70 break;
71 case COLORTYPE_RGB:
72 array.SetElement(0, CJS_Value(array.GetJSRuntime(), "RGB"));
73 array.SetElement(1, CJS_Value(array.GetJSRuntime(), color.fColor1));
74 array.SetElement(2, CJS_Value(array.GetJSRuntime(), color.fColor2));
75 array.SetElement(3, CJS_Value(array.GetJSRuntime(), color.fColor3));
76 break;
77 case COLORTYPE_CMYK:
78 array.SetElement(0, CJS_Value(array.GetJSRuntime(), "CMYK"));
79 array.SetElement(1, CJS_Value(array.GetJSRuntime(), color.fColor1));
80 array.SetElement(2, CJS_Value(array.GetJSRuntime(), color.fColor2));
81 array.SetElement(3, CJS_Value(array.GetJSRuntime(), color.fColor3));
82 array.SetElement(4, CJS_Value(array.GetJSRuntime(), color.fColor4));
83 break;
84 }
85 }
86
ConvertArrayToPWLColor(CJS_Array & array,CPWL_Color & color)87 void color::ConvertArrayToPWLColor(CJS_Array& array, CPWL_Color& color) {
88 int nArrayLen = array.GetLength();
89 if (nArrayLen < 1)
90 return;
91
92 CJS_Value value(array.GetJSRuntime());
93 array.GetElement(0, value);
94 CFX_ByteString sSpace = value.ToCFXByteString();
95
96 double d1 = 0;
97 double d2 = 0;
98 double d3 = 0;
99 double d4 = 0;
100
101 if (nArrayLen > 1) {
102 array.GetElement(1, value);
103 d1 = value.ToDouble();
104 }
105
106 if (nArrayLen > 2) {
107 array.GetElement(2, value);
108 d2 = value.ToDouble();
109 }
110
111 if (nArrayLen > 3) {
112 array.GetElement(3, value);
113 d3 = value.ToDouble();
114 }
115
116 if (nArrayLen > 4) {
117 array.GetElement(4, value);
118 d4 = value.ToDouble();
119 }
120
121 if (sSpace == "T") {
122 color = CPWL_Color(COLORTYPE_TRANSPARENT);
123 } else if (sSpace == "G") {
124 color = CPWL_Color(COLORTYPE_GRAY, (FX_FLOAT)d1);
125 } else if (sSpace == "RGB") {
126 color = CPWL_Color(COLORTYPE_RGB, (FX_FLOAT)d1, (FX_FLOAT)d2, (FX_FLOAT)d3);
127 } else if (sSpace == "CMYK") {
128 color = CPWL_Color(COLORTYPE_CMYK, (FX_FLOAT)d1, (FX_FLOAT)d2, (FX_FLOAT)d3,
129 (FX_FLOAT)d4);
130 }
131 }
132
133 #define JS_IMPLEMENT_COLORPROP(prop, var) \
134 FX_BOOL color::prop(IJS_Context* cc, CJS_PropValue& vp, \
135 CFX_WideString& sError) { \
136 CJS_Runtime* pRuntime = CJS_Runtime::FromContext(cc); \
137 CJS_Array array(pRuntime); \
138 if (vp.IsGetting()) { \
139 ConvertPWLColorToArray(var, array); \
140 vp << array; \
141 } else { \
142 if (!vp.ConvertToArray(array)) \
143 return FALSE; \
144 ConvertArrayToPWLColor(array, var); \
145 } \
146 return TRUE; \
147 }
148
JS_IMPLEMENT_COLORPROP(transparent,m_crTransparent)149 JS_IMPLEMENT_COLORPROP(transparent, m_crTransparent)
150 JS_IMPLEMENT_COLORPROP(black, m_crBlack)
151 JS_IMPLEMENT_COLORPROP(white, m_crWhite)
152 JS_IMPLEMENT_COLORPROP(red, m_crRed)
153 JS_IMPLEMENT_COLORPROP(green, m_crGreen)
154 JS_IMPLEMENT_COLORPROP(blue, m_crBlue)
155 JS_IMPLEMENT_COLORPROP(cyan, m_crCyan)
156 JS_IMPLEMENT_COLORPROP(magenta, m_crMagenta)
157 JS_IMPLEMENT_COLORPROP(yellow, m_crYellow)
158 JS_IMPLEMENT_COLORPROP(dkGray, m_crDKGray)
159 JS_IMPLEMENT_COLORPROP(gray, m_crGray)
160 JS_IMPLEMENT_COLORPROP(ltGray, m_crLTGray)
161
162 FX_BOOL color::convert(IJS_Context* cc,
163 const std::vector<CJS_Value>& params,
164 CJS_Value& vRet,
165 CFX_WideString& sError) {
166 int iSize = params.size();
167 if (iSize < 2)
168 return FALSE;
169
170 CJS_Runtime* pRuntime = CJS_Runtime::FromContext(cc);
171 CJS_Array aSource(pRuntime);
172 if (!params[0].ConvertToArray(aSource))
173 return FALSE;
174
175 CPWL_Color crSource;
176 ConvertArrayToPWLColor(aSource, crSource);
177
178 CFX_ByteString sDestSpace = params[1].ToCFXByteString();
179 int nColorType = COLORTYPE_TRANSPARENT;
180
181 if (sDestSpace == "T") {
182 nColorType = COLORTYPE_TRANSPARENT;
183 } else if (sDestSpace == "G") {
184 nColorType = COLORTYPE_GRAY;
185 } else if (sDestSpace == "RGB") {
186 nColorType = COLORTYPE_RGB;
187 } else if (sDestSpace == "CMYK") {
188 nColorType = COLORTYPE_CMYK;
189 }
190
191 CJS_Array aDest(pRuntime);
192 CPWL_Color crDest = crSource;
193 crDest.ConvertColorType(nColorType);
194 ConvertPWLColorToArray(crDest, aDest);
195 vRet = aDest;
196
197 return TRUE;
198 }
199
equal(IJS_Context * cc,const std::vector<CJS_Value> & params,CJS_Value & vRet,CFX_WideString & sError)200 FX_BOOL color::equal(IJS_Context* cc,
201 const std::vector<CJS_Value>& params,
202 CJS_Value& vRet,
203 CFX_WideString& sError) {
204 if (params.size() < 2)
205 return FALSE;
206
207 CJS_Runtime* pRuntime = CJS_Runtime::FromContext(cc);
208 CJS_Array array1(pRuntime);
209 CJS_Array array2(pRuntime);
210 if (!params[0].ConvertToArray(array1))
211 return FALSE;
212 if (!params[1].ConvertToArray(array2))
213 return FALSE;
214
215 CPWL_Color color1;
216 CPWL_Color color2;
217 ConvertArrayToPWLColor(array1, color1);
218 ConvertArrayToPWLColor(array2, color2);
219 color1.ConvertColorType(color2.nColorType);
220 vRet = color1 == color2;
221 return TRUE;
222 }
223