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/pdfwindow/PDFWindow.h"
8 #include "../../include/pdfwindow/PWL_Wnd.h"
9 #include "../../include/pdfwindow/PWL_Icon.h"
10 #include "../../include/pdfwindow/PWL_Utils.h"
11
12 /* ------------------------------- CPWL_Image ---------------------------------- */
13
CPWL_Image()14 CPWL_Image::CPWL_Image() : m_pPDFStream(NULL)
15 {
16 }
17
~CPWL_Image()18 CPWL_Image::~CPWL_Image()
19 {
20 }
21
GetImageAppStream()22 CFX_ByteString CPWL_Image::GetImageAppStream()
23 {
24 CFX_ByteTextBuf sAppStream;
25
26 CFX_ByteString sAlias = this->GetImageAlias();
27 CPDF_Rect rcPlate = GetClientRect();
28 CPDF_Matrix mt;
29 mt.SetReverse(GetImageMatrix());
30
31 FX_FLOAT fHScale = 1.0f;
32 FX_FLOAT fVScale = 1.0f;
33 GetScale(fHScale,fVScale);
34
35 FX_FLOAT fx = 0.0f;
36 FX_FLOAT fy = 0.0f;
37 GetImageOffset(fx,fy);
38
39 if (m_pPDFStream && sAlias.GetLength()>0)
40 {
41 sAppStream << "q\n";
42 sAppStream << rcPlate.left << " " << rcPlate.bottom << " "
43 << rcPlate.right - rcPlate.left << " " << rcPlate.top - rcPlate.bottom << " re W n\n";
44
45 sAppStream << fHScale << " 0 0 " << fVScale << " " << rcPlate.left + fx << " " << rcPlate.bottom + fy << " cm\n";
46 sAppStream << mt.GetA() << " " << mt.GetB() << " " << mt.GetC() << " " << mt.GetD() << " " << mt.GetE() << " " << mt.GetF() << " cm\n";
47
48 sAppStream << "0 g 0 G 1 w /" << sAlias << " Do\n" << "Q\n";
49 }
50
51 return sAppStream.GetByteString();
52 }
53
SetPDFStream(CPDF_Stream * pStream)54 void CPWL_Image::SetPDFStream(CPDF_Stream * pStream)
55 {
56 m_pPDFStream = pStream;
57 }
58
GetPDFStream()59 CPDF_Stream * CPWL_Image::GetPDFStream()
60 {
61 return this->m_pPDFStream;
62 }
63
GetImageSize(FX_FLOAT & fWidth,FX_FLOAT & fHeight)64 void CPWL_Image::GetImageSize(FX_FLOAT & fWidth,FX_FLOAT & fHeight)
65 {
66 fWidth = 0.0f;
67 fHeight = 0.0f;
68
69 if (m_pPDFStream)
70 {
71 if (CPDF_Dictionary * pDict = m_pPDFStream->GetDict())
72 {
73 CPDF_Rect rect = pDict->GetRect("BBox");
74
75 fWidth = rect.right - rect.left;
76 fHeight = rect.top - rect.bottom;
77 }
78 }
79 }
80
GetImageMatrix()81 CPDF_Matrix CPWL_Image::GetImageMatrix()
82 {
83 if (m_pPDFStream)
84 {
85 if (CPDF_Dictionary * pDict = m_pPDFStream->GetDict())
86 {
87 return pDict->GetMatrix("Matrix");
88 }
89 }
90
91 return CPDF_Matrix();
92 }
93
GetImageAlias()94 CFX_ByteString CPWL_Image::GetImageAlias()
95 {
96 if (m_sImageAlias.IsEmpty())
97 {
98 if (m_pPDFStream)
99 {
100 if (CPDF_Dictionary * pDict = m_pPDFStream->GetDict())
101 {
102 return pDict->GetString("Name");
103 }
104 }
105 }
106 else
107 return m_sImageAlias;
108
109 return CFX_ByteString();
110 }
111
SetImageAlias(FX_LPCSTR sImageAlias)112 void CPWL_Image::SetImageAlias(FX_LPCSTR sImageAlias)
113 {
114 m_sImageAlias = sImageAlias;
115 }
116
GetScale(FX_FLOAT & fHScale,FX_FLOAT & fVScale)117 void CPWL_Image::GetScale(FX_FLOAT & fHScale,FX_FLOAT & fVScale)
118 {
119 fHScale = 1.0f;
120 fVScale = 1.0f;
121 }
122
123
GetImageOffset(FX_FLOAT & x,FX_FLOAT & y)124 void CPWL_Image::GetImageOffset(FX_FLOAT & x,FX_FLOAT & y)
125 {
126 x = 0.0f;
127 y = 0.0f;
128 }
129
130 /* ------------------------------- CPWL_Icon ---------------------------------- */
131
CPWL_Icon()132 CPWL_Icon::CPWL_Icon() : m_pIconFit(NULL)
133 {
134 }
135
~CPWL_Icon()136 CPWL_Icon::~CPWL_Icon()
137 {
138 }
139
GetScaleMethod()140 FX_INT32 CPWL_Icon::GetScaleMethod()
141 {
142 if (m_pIconFit)
143 return m_pIconFit->GetScaleMethod();
144
145 return 0;
146 }
147
IsProportionalScale()148 FX_BOOL CPWL_Icon::IsProportionalScale()
149 {
150 if (m_pIconFit)
151 return m_pIconFit->IsProportionalScale();
152
153 return FALSE;
154 }
155
GetIconPosition(FX_FLOAT & fLeft,FX_FLOAT & fBottom)156 void CPWL_Icon::GetIconPosition(FX_FLOAT & fLeft, FX_FLOAT & fBottom)
157 {
158 if (m_pIconFit)
159 {
160 //m_pIconFit->GetIconPosition(fLeft,fBottom);
161 fLeft = 0.0f;
162 fBottom = 0.0f;
163 CPDF_Array* pA = m_pIconFit->m_pDict ? m_pIconFit->m_pDict->GetArray("A") : NULL;
164 if (pA != NULL)
165 {
166 FX_DWORD dwCount = pA->GetCount();
167 if (dwCount > 0) fLeft = pA->GetNumber(0);
168 if (dwCount > 1) fBottom = pA->GetNumber(1);
169 }
170 }
171 else
172 {
173 fLeft = 0.0f;
174 fBottom = 0.0f;
175 }
176 }
177
GetFittingBounds()178 FX_BOOL CPWL_Icon::GetFittingBounds()
179 {
180 if (m_pIconFit)
181 return m_pIconFit->GetFittingBounds();
182
183 return FALSE;
184 }
185
GetScale(FX_FLOAT & fHScale,FX_FLOAT & fVScale)186 void CPWL_Icon::GetScale(FX_FLOAT & fHScale,FX_FLOAT & fVScale)
187 {
188 fHScale = 1.0f;
189 fVScale = 1.0f;
190
191 if (m_pPDFStream)
192 {
193 FX_FLOAT fImageWidth,fImageHeight;
194 FX_FLOAT fPlateWidth,fPlateHeight;
195
196 CPDF_Rect rcPlate = this->GetClientRect();
197 fPlateWidth = rcPlate.right - rcPlate.left;
198 fPlateHeight = rcPlate.top - rcPlate.bottom;
199
200 GetImageSize(fImageWidth,fImageHeight);
201
202 FX_INT32 nScaleMethod = this->GetScaleMethod();
203
204 /*
205 enum ScaleMethod
206 {
207 Always = 0, //A, Always scale
208 Bigger, //B, Scale only when the icon is bigger than the annotation rectangle
209 Smaller, //S, Scale only when the icon is smaller then the annotation rectangle
210 Never //N, Never scale
211 };
212 */
213
214 switch (nScaleMethod)
215 {
216 default:
217 case 0:
218 fHScale = fPlateWidth / PWL_MAX(fImageWidth,1.0f);
219 fVScale = fPlateHeight / PWL_MAX(fImageHeight,1.0f);
220 break;
221 case 1:
222 if (fPlateWidth < fImageWidth)
223 fHScale = fPlateWidth / PWL_MAX(fImageWidth,1.0f);
224 if (fPlateHeight < fImageHeight)
225 fVScale = fPlateHeight / PWL_MAX(fImageHeight,1.0f);
226 break;
227 case 2:
228 if (fPlateWidth > fImageWidth)
229 fHScale = fPlateWidth / PWL_MAX(fImageWidth,1.0f);
230 if (fPlateHeight > fImageHeight)
231 fVScale = fPlateHeight / PWL_MAX(fImageHeight,1.0f);
232 break;
233 case 3:
234 break;
235 }
236
237 FX_FLOAT fMinScale;
238 if (IsProportionalScale())
239 {
240 fMinScale = PWL_MIN(fHScale,fVScale);
241 fHScale = fMinScale;
242 fVScale = fMinScale;
243 }
244 }
245 }
246
GetImageOffset(FX_FLOAT & x,FX_FLOAT & y)247 void CPWL_Icon::GetImageOffset(FX_FLOAT & x,FX_FLOAT & y)
248 {
249 FX_FLOAT fLeft,fBottom;
250
251 this->GetIconPosition(fLeft,fBottom);
252 x = 0.0f;
253 y = 0.0f;
254
255 FX_FLOAT fImageWidth,fImageHeight;
256 GetImageSize(fImageWidth,fImageHeight);
257
258 FX_FLOAT fHScale,fVScale;
259 GetScale(fHScale,fVScale);
260
261 FX_FLOAT fImageFactWidth = fImageWidth * fHScale;
262 FX_FLOAT fImageFactHeight = fImageHeight * fVScale;
263
264 FX_FLOAT fPlateWidth,fPlateHeight;
265 CPDF_Rect rcPlate = this->GetClientRect();
266 fPlateWidth = rcPlate.right - rcPlate.left;
267 fPlateHeight = rcPlate.top - rcPlate.bottom;
268
269 x = (fPlateWidth - fImageFactWidth) * fLeft;
270 y = (fPlateHeight - fImageFactHeight) * fBottom;
271 }
272
273