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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fpdfsdk/pwl/cpwl_icon.h"
#include <algorithm>
#include <sstream>
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "fpdfsdk/pwl/cpwl_wnd.h"
CPWL_Icon::CPWL_Icon() : m_pPDFStream(nullptr), m_pIconFit(nullptr) {}
CPWL_Icon::~CPWL_Icon() {}
std::pair<float, float> CPWL_Icon::GetImageSize() {
if (!m_pPDFStream)
return {0.0f, 0.0f};
CPDF_Dictionary* pDict = m_pPDFStream->GetDict();
if (!pDict)
return {0.0f, 0.0f};
CFX_FloatRect rect = pDict->GetRectFor("BBox");
return {rect.right - rect.left, rect.top - rect.bottom};
}
CFX_Matrix CPWL_Icon::GetImageMatrix() {
if (!m_pPDFStream)
return CFX_Matrix();
if (CPDF_Dictionary* pDict = m_pPDFStream->GetDict())
return pDict->GetMatrixFor("Matrix");
return CFX_Matrix();
}
ByteString CPWL_Icon::GetImageAlias() {
if (!m_pPDFStream)
return ByteString();
if (CPDF_Dictionary* pDict = m_pPDFStream->GetDict())
return pDict->GetStringFor("Name");
return ByteString();
}
std::pair<float, float> CPWL_Icon::GetIconPosition() {
if (!m_pIconFit)
return {0.0f, 0.0f};
const CPDF_Array* pA =
m_pIconFit->GetDict() ? m_pIconFit->GetDict()->GetArrayFor("A") : nullptr;
if (!pA)
return {0.0f, 0.0f};
size_t dwCount = pA->GetCount();
return {dwCount > 0 ? pA->GetNumberAt(0) : 0.0f,
dwCount > 1 ? pA->GetNumberAt(1) : 0.0f};
}
std::pair<float, float> CPWL_Icon::GetScale() {
float fHScale = 1.0f;
float fVScale = 1.0f;
if (!m_pPDFStream)
return {fHScale, fVScale};
CFX_FloatRect rcPlate = GetClientRect();
float fPlateWidth = rcPlate.Width();
float fPlateHeight = rcPlate.Height();
float fImageWidth;
float fImageHeight;
std::tie(fImageWidth, fImageHeight) = GetImageSize();
int32_t nScaleMethod = m_pIconFit ? m_pIconFit->GetScaleMethod() : 0;
switch (nScaleMethod) {
default:
case 0:
fHScale = fPlateWidth / std::max(fImageWidth, 1.0f);
fVScale = fPlateHeight / std::max(fImageHeight, 1.0f);
break;
case 1:
if (fPlateWidth < fImageWidth)
fHScale = fPlateWidth / std::max(fImageWidth, 1.0f);
if (fPlateHeight < fImageHeight)
fVScale = fPlateHeight / std::max(fImageHeight, 1.0f);
break;
case 2:
if (fPlateWidth > fImageWidth)
fHScale = fPlateWidth / std::max(fImageWidth, 1.0f);
if (fPlateHeight > fImageHeight)
fVScale = fPlateHeight / std::max(fImageHeight, 1.0f);
break;
case 3:
break;
}
float fMinScale;
if (m_pIconFit && m_pIconFit->IsProportionalScale()) {
fMinScale = std::min(fHScale, fVScale);
fHScale = fMinScale;
fVScale = fMinScale;
}
return {fHScale, fVScale};
}
std::pair<float, float> CPWL_Icon::GetImageOffset() {
float fLeft;
float fBottom;
std::tie(fLeft, fBottom) = GetIconPosition();
float fImageWidth;
float fImageHeight;
std::tie(fImageWidth, fImageHeight) = GetImageSize();
float fHScale, fVScale;
std::tie(fHScale, fVScale) = GetScale();
float fImageFactWidth = fImageWidth * fHScale;
float fImageFactHeight = fImageHeight * fVScale;
CFX_FloatRect rcPlate = GetClientRect();
float fPlateWidth = rcPlate.Width();
float fPlateHeight = rcPlate.Height();
return {(fPlateWidth - fImageFactWidth) * fLeft,
(fPlateHeight - fImageFactHeight) * fBottom};
}
|
