38417067437e73874cd6502f7548906a5b4212bd
[pdfium.git] / fpdfsdk / src / javascript / color.cpp
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 "../../include/javascript/JavaScript.h"
8 #include "../../include/javascript/IJavaScript.h"
9 #include "../../include/javascript/JS_Define.h"
10 #include "../../include/javascript/JS_Object.h"
11 #include "../../include/javascript/JS_Value.h"
12 #include "../../include/javascript/color.h"
13 #include "../../include/javascript/JS_EventHandler.h"
14 #include "../../include/javascript/JS_Context.h"
15 #include "../../include/javascript/JS_Runtime.h"
16
17 static v8::Isolate* GetIsolate(IFXJS_Context* cc)
18 {
19         CJS_Context* pContext = (CJS_Context *)cc;
20         ASSERT(pContext != NULL);
21
22         CJS_Runtime* pRuntime = pContext->GetJSRuntime();
23         ASSERT(pRuntime != NULL);
24
25         return pRuntime->GetIsolate();
26 }
27 /* -------------------------- color -------------------------- */
28
29 BEGIN_JS_STATIC_CONST(CJS_Color)
30 END_JS_STATIC_CONST()
31
32 BEGIN_JS_STATIC_PROP(CJS_Color)
33         JS_STATIC_PROP_ENTRY(black)
34         JS_STATIC_PROP_ENTRY(blue)
35         JS_STATIC_PROP_ENTRY(cyan)      
36         JS_STATIC_PROP_ENTRY(dkGray)
37         JS_STATIC_PROP_ENTRY(gray)
38         JS_STATIC_PROP_ENTRY(green)
39         JS_STATIC_PROP_ENTRY(ltGray)
40         JS_STATIC_PROP_ENTRY(magenta)
41         JS_STATIC_PROP_ENTRY(red)       
42         JS_STATIC_PROP_ENTRY(transparent)
43         JS_STATIC_PROP_ENTRY(white)
44         JS_STATIC_PROP_ENTRY(yellow)
45 END_JS_STATIC_PROP()
46
47 BEGIN_JS_STATIC_METHOD(CJS_Color)
48         JS_STATIC_METHOD_ENTRY(convert, 2)
49         JS_STATIC_METHOD_ENTRY(equal, 2)
50 END_JS_STATIC_METHOD()
51
52 IMPLEMENT_JS_CLASS(CJS_Color,color)
53
54 color::color(CJS_Object* pJSObject): CJS_EmbedObj(pJSObject)
55 {
56         m_crTransparent = CPWL_Color(COLORTYPE_TRANSPARENT);
57         m_crBlack = CPWL_Color(COLORTYPE_GRAY, 0);
58         m_crWhite = CPWL_Color(COLORTYPE_GRAY, 1);
59         m_crRed = CPWL_Color(COLORTYPE_RGB, 1, 0 ,0);
60         m_crGreen = CPWL_Color(COLORTYPE_RGB, 0, 1 ,0);
61         m_crBlue = CPWL_Color(COLORTYPE_RGB, 0, 0 ,1);
62         m_crCyan = CPWL_Color(COLORTYPE_CMYK, 1, 0 ,0, 0);
63         m_crMagenta = CPWL_Color(COLORTYPE_CMYK, 0, 1 ,0, 0);
64         m_crYellow = CPWL_Color(COLORTYPE_CMYK, 0, 0 ,1, 0);
65         m_crDKGray = CPWL_Color(COLORTYPE_GRAY, 0.25);
66         m_crGray = CPWL_Color(COLORTYPE_GRAY, 0.5);
67         m_crLTGray = CPWL_Color(COLORTYPE_GRAY, 0.75);
68 }
69
70 color::~color(void)
71 {
72 }
73
74 void color::ConvertPWLColorToArray(const CPWL_Color& color, CJS_Array& array)
75 {
76         switch (color.nColorType)
77         {
78         case COLORTYPE_TRANSPARENT:
79                 array.SetElement(0, CJS_Value(array.GetIsolate(), "T"));
80                 break;
81         case COLORTYPE_GRAY:
82                 array.SetElement(0, CJS_Value(array.GetIsolate(),"G"));
83                 array.SetElement(1, CJS_Value(array.GetIsolate(),color.fColor1));
84                 break;
85         case COLORTYPE_RGB:
86                 array.SetElement(0, CJS_Value(array.GetIsolate(),"RGB"));
87                 array.SetElement(1, CJS_Value(array.GetIsolate(),color.fColor1));
88                 array.SetElement(2, CJS_Value(array.GetIsolate(),color.fColor2));
89                 array.SetElement(3, CJS_Value(array.GetIsolate(),color.fColor3));
90                 break;
91         case COLORTYPE_CMYK:
92                 array.SetElement(0, CJS_Value(array.GetIsolate(),"CMYK"));
93                 array.SetElement(1, CJS_Value(array.GetIsolate(),color.fColor1));
94                 array.SetElement(2, CJS_Value(array.GetIsolate(),color.fColor2));
95                 array.SetElement(3, CJS_Value(array.GetIsolate(),color.fColor3));
96                 array.SetElement(4, CJS_Value(array.GetIsolate(),color.fColor4));
97                 break;
98         }
99 }
100
101 void color::ConvertArrayToPWLColor(CJS_Array& array, CPWL_Color& color)
102 {
103         int nArrayLen = array.GetLength();
104         if (nArrayLen < 1) return;
105
106         CJS_Value value(array.GetIsolate());
107         CFX_ByteString sSpace;
108         array.GetElement(0, value);
109         sSpace = value;
110
111         double d1 = 0;
112         double d2 = 0;
113         double d3 = 0;
114         double d4 = 0;
115
116         if (nArrayLen > 1)
117         {
118                 array.GetElement(1, value);
119                 d1 = value;
120         }
121
122         if (nArrayLen > 2)
123         {
124                 array.GetElement(2, value);
125                 d2 = value;
126         }
127
128         if (nArrayLen > 3)
129         {
130                 array.GetElement(3, value);
131                 d3 = value;
132         }
133
134         if (nArrayLen > 4)
135         {
136                 array.GetElement(4, value);
137                 d4 = value;
138         }
139
140         if (sSpace == "T")
141         {
142                 color = CPWL_Color(COLORTYPE_TRANSPARENT);
143         }
144         else if (sSpace == "G")
145         {
146                 color = CPWL_Color(COLORTYPE_GRAY, (FX_FLOAT)d1);
147         }
148         else if (sSpace == "RGB")
149         {
150                 color = CPWL_Color(COLORTYPE_RGB, (FX_FLOAT)d1, (FX_FLOAT)d2, (FX_FLOAT)d3);
151         }
152         else if (sSpace == "CMYK")
153         {
154                 color = CPWL_Color(COLORTYPE_CMYK, (FX_FLOAT)d1, (FX_FLOAT)d2, (FX_FLOAT)d3, (FX_FLOAT)d4);
155         }
156 }
157
158 #define JS_IMPLEMENT_COLORPROP(prop, var)\
159 FX_BOOL color::prop(OBJ_PROP_PARAMS)\
160 {\
161         CJS_Context* pContext = (CJS_Context*)cc;\
162         v8::Isolate* isolate = pContext->GetJSRuntime()->GetIsolate();\
163         if (vp.IsGetting())\
164         {\
165                 CJS_Array array(isolate);\
166                 ConvertPWLColorToArray(var, array);\
167                 vp << array;\
168         }\
169         else\
170         {\
171                 CJS_Array array(isolate);\
172                 if (!vp.ConvertToArray(array)) return FALSE;\
173                 ConvertArrayToPWLColor(array, var);\
174         }\
175         return TRUE;\
176 }
177
178 JS_IMPLEMENT_COLORPROP(transparent, m_crTransparent)
179 JS_IMPLEMENT_COLORPROP(black, m_crBlack)
180 JS_IMPLEMENT_COLORPROP(white, m_crWhite)
181 JS_IMPLEMENT_COLORPROP(red, m_crRed)
182 JS_IMPLEMENT_COLORPROP(green, m_crGreen)
183 JS_IMPLEMENT_COLORPROP(blue, m_crBlue)
184 JS_IMPLEMENT_COLORPROP(cyan, m_crCyan)
185 JS_IMPLEMENT_COLORPROP(magenta, m_crMagenta)
186 JS_IMPLEMENT_COLORPROP(yellow, m_crYellow)
187 JS_IMPLEMENT_COLORPROP(dkGray, m_crDKGray)
188 JS_IMPLEMENT_COLORPROP(gray, m_crGray)
189 JS_IMPLEMENT_COLORPROP(ltGray, m_crLTGray)
190
191 FX_BOOL color::convert(OBJ_METHOD_PARAMS)
192 {
193         v8::Isolate* isolate = GetIsolate(cc);
194         int iSize = params.size();
195         if (iSize < 2) return FALSE;
196         CJS_Array aSource(isolate);
197         if (!params[0].ConvertToArray(aSource)) return FALSE;
198
199         CPWL_Color crSource;
200         ConvertArrayToPWLColor(aSource, crSource);
201
202         CFX_ByteString sDestSpace = params[1];
203
204         int nColorType = COLORTYPE_TRANSPARENT;
205         
206         if (sDestSpace == "T")
207         {
208                 nColorType = COLORTYPE_TRANSPARENT;
209         }
210         else if (sDestSpace == "G")
211         {
212                 nColorType = COLORTYPE_GRAY;
213         }
214         else if (sDestSpace == "RGB")
215         {
216                 nColorType = COLORTYPE_RGB;
217         }
218         else if (sDestSpace == "CMYK")
219         {
220                 nColorType = COLORTYPE_CMYK;
221         }
222
223         CJS_Array aDest(isolate);
224         CPWL_Color crDest = crSource;
225         crDest.ConvertColorType(nColorType);
226         ConvertPWLColorToArray(crDest, aDest);
227         vRet = aDest;
228
229         return TRUE;
230 }
231
232 FX_BOOL color::equal(OBJ_METHOD_PARAMS)
233 {
234         v8::Isolate* isolate = GetIsolate(cc);
235         if (params.size() < 2) return FALSE;
236
237         CJS_Array array1(isolate), array2(isolate);
238
239         if (!params[0].ConvertToArray(array1)) return FALSE;
240         if (!params[1].ConvertToArray(array2)) return FALSE;
241
242         CPWL_Color color1;
243         CPWL_Color color2;
244
245         ConvertArrayToPWLColor(array1, color1);
246         ConvertArrayToPWLColor(array2, color2);
247
248         color1.ConvertColorType(color2.nColorType);
249
250         vRet = color1 == color2;
251         return TRUE;
252 }
253