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
|
// Copyright 2014 The PDFium Authors
// 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
#ifndef XFA_FDE_CFDE_TEXTOUT_H_
#define XFA_FDE_CFDE_TEXTOUT_H_
#include <deque>
#include <memory>
#include <vector>
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/widestring.h"
#include "core/fxge/dib/fx_dib.h"
#include "third_party/base/span.h"
#include "xfa/fde/cfde_data.h"
#include "xfa/fgas/layout/cfgas_break.h"
#include "xfa/fgas/layout/cfgas_char.h"
class CFGAS_GEFont;
class CFGAS_TxtBreak;
class CFX_RenderDevice;
class TextCharPos;
class CFDE_TextOut {
public:
static bool DrawString(CFX_RenderDevice* device,
FX_ARGB color,
const RetainPtr<CFGAS_GEFont>& pFont,
pdfium::span<TextCharPos> pCharPos,
float fFontSize,
const CFX_Matrix& matrix);
CFDE_TextOut();
~CFDE_TextOut();
void SetFont(RetainPtr<CFGAS_GEFont> pFont);
void SetFontSize(float fFontSize);
void SetTextColor(FX_ARGB color) { m_TxtColor = color; }
void SetStyles(const FDE_TextStyle& dwStyles);
void SetAlignment(FDE_TextAlignment iAlignment);
void SetLineSpace(float fLineSpace);
void SetMatrix(const CFX_Matrix& matrix) { m_Matrix = matrix; }
void SetLineBreakTolerance(float fTolerance);
void CalcLogicSize(WideStringView str, CFX_SizeF* pSize);
void CalcLogicSize(WideStringView str, CFX_RectF* pRect);
void DrawLogicText(CFX_RenderDevice* device,
const WideString& str,
const CFX_RectF& rect);
int32_t GetTotalLines() const { return m_iTotalLines; }
private:
struct Piece {
Piece();
Piece(const Piece& that);
~Piece();
size_t start_char = 0;
size_t char_count = 0;
uint32_t char_styles = 0;
CFX_RectF bounds;
};
class Line {
public:
Line();
Line(const Line& that);
~Line();
bool new_reload() const { return new_reload_; }
void set_new_reload(bool reload) { new_reload_ = reload; }
size_t AddPiece(size_t index, const Piece& piece);
size_t GetSize() const;
const Piece* GetPieceAtIndex(size_t index) const;
Piece* GetPieceAtIndex(size_t index);
void RemoveLast(size_t count);
private:
bool new_reload_ = false;
std::deque<Piece> pieces_;
};
bool RetrieveLineWidth(CFGAS_Char::BreakType dwBreakStatus,
float* pStartPos,
float* pWidth,
float* pHeight);
void LoadText(const WideString& str, const CFX_RectF& rect);
void Reload(const CFX_RectF& rect);
void ReloadLinePiece(Line* pLine, const CFX_RectF& rect);
bool RetrievePieces(CFGAS_Char::BreakType dwBreakStatus,
bool bReload,
const CFX_RectF& rect,
size_t* pStartChar,
int32_t* pPieceWidths);
void AppendPiece(const Piece& piece, bool bNeedReload, bool bEnd);
void DoAlignment(const CFX_RectF& rect);
size_t GetDisplayPos(const Piece* pPiece);
std::unique_ptr<CFGAS_TxtBreak> const m_pTxtBreak;
RetainPtr<CFGAS_GEFont> m_pFont;
float m_fFontSize = 12.0f;
float m_fLineSpace = 12.0f;
float m_fLinePos = 0.0f;
float m_fTolerance = 0.0f;
FDE_TextAlignment m_iAlignment = FDE_TextAlignment::kTopLeft;
FDE_TextStyle m_Styles;
std::vector<int32_t> m_CharWidths;
FX_ARGB m_TxtColor = 0xFF000000;
Mask<CFGAS_Break::LayoutStyle> m_dwTxtBkStyles;
WideString m_wsText;
CFX_Matrix m_Matrix;
std::deque<Line> m_ttoLines;
size_t m_iCurLine = 0;
size_t m_iCurPiece = 0;
int32_t m_iTotalLines = 0;
std::vector<TextCharPos> m_CharPos;
};
#endif // XFA_FDE_CFDE_TEXTOUT_H_
|
