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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
// 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/pdfwindow/PWL_Caret.h"
#include "core/fxge/include/cfx_graphstatedata.h"
#include "core/fxge/include/cfx_pathdata.h"
#include "core/fxge/include/cfx_renderdevice.h"
#include "fpdfsdk/pdfwindow/PWL_Utils.h"
#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
#define PWL_CARET_FLASHINTERVAL 500
CPWL_Caret::CPWL_Caret() : m_bFlash(FALSE), m_fWidth(0.4f), m_nDelay(0) {}
CPWL_Caret::~CPWL_Caret() {}
CFX_ByteString CPWL_Caret::GetClassName() const {
return "CPWL_Caret";
}
void CPWL_Caret::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) {
GetCaretApp(sAppStream, CFX_FloatPoint(0.0f, 0.0f));
}
void CPWL_Caret::DrawThisAppearance(CFX_RenderDevice* pDevice,
CFX_Matrix* pUser2Device) {
if (IsVisible() && m_bFlash) {
CFX_FloatRect rcRect = GetCaretRect();
CFX_FloatRect rcClip = GetClipRect();
CFX_PathData path;
path.SetPointCount(2);
FX_FLOAT fCaretX = rcRect.left + m_fWidth * 0.5f;
FX_FLOAT fCaretTop = rcRect.top;
FX_FLOAT fCaretBottom = rcRect.bottom;
if (!rcClip.IsEmpty()) {
rcRect.Intersect(rcClip);
if (!rcRect.IsEmpty()) {
fCaretTop = rcRect.top;
fCaretBottom = rcRect.bottom;
path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO);
path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO);
} else {
return;
}
} else {
path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO);
path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO);
}
CFX_GraphStateData gsd;
gsd.m_LineWidth = m_fWidth;
pDevice->DrawPath(&path, pUser2Device, &gsd, 0, ArgbEncode(255, 0, 0, 0),
FXFILL_ALTERNATE);
}
}
void CPWL_Caret::GetCaretApp(CFX_ByteTextBuf& sAppStream,
const CFX_FloatPoint& ptOffset) {
if (IsVisible() && m_bFlash) {
CFX_ByteTextBuf sCaret;
CFX_FloatRect rcRect = GetCaretRect();
CFX_FloatRect rcClip = GetClipRect();
rcRect = CPWL_Utils::OffsetRect(rcRect, ptOffset.x, ptOffset.y);
rcClip = CPWL_Utils::OffsetRect(rcClip, ptOffset.x, ptOffset.y);
sCaret << "q\n";
if (!rcClip.IsEmpty()) {
sCaret << rcClip.left << " " << rcClip.bottom + 2.5f << " "
<< rcClip.right - rcClip.left << " "
<< rcClip.top - rcClip.bottom - 4.5f << " re W n\n";
}
sCaret << m_fWidth << " w\n0 G\n";
sCaret << rcRect.left + m_fWidth / 2 << " " << rcRect.bottom << " m\n";
sCaret << rcRect.left + m_fWidth / 2 << " " << rcRect.top << " l S\nQ\n";
sAppStream << sCaret;
}
}
CFX_ByteString CPWL_Caret::GetCaretAppearanceStream(
const CFX_FloatPoint& ptOffset) {
CFX_ByteTextBuf sCaret;
GetCaretApp(sCaret, ptOffset);
return sCaret.MakeString();
}
void CPWL_Caret::TimerProc() {
if (m_nDelay > 0) {
m_nDelay--;
} else {
m_bFlash = !m_bFlash;
InvalidateRect();
}
}
CFX_FloatRect CPWL_Caret::GetCaretRect() const {
return CFX_FloatRect(m_ptFoot.x, m_ptFoot.y, m_ptHead.x + m_fWidth,
m_ptHead.y);
}
void CPWL_Caret::SetCaret(FX_BOOL bVisible,
const CFX_FloatPoint& ptHead,
const CFX_FloatPoint& ptFoot) {
if (bVisible) {
if (IsVisible()) {
if (m_ptHead != ptHead || m_ptFoot != ptFoot) {
m_ptHead = ptHead;
m_ptFoot = ptFoot;
m_bFlash = TRUE;
Move(m_rcInvalid, FALSE, TRUE);
}
} else {
m_ptHead = ptHead;
m_ptFoot = ptFoot;
EndTimer();
BeginTimer(PWL_CARET_FLASHINTERVAL);
CPWL_Wnd::SetVisible(TRUE);
m_bFlash = TRUE;
Move(m_rcInvalid, FALSE, TRUE);
}
} else {
m_ptHead = CFX_FloatPoint();
m_ptFoot = CFX_FloatPoint();
m_bFlash = FALSE;
if (IsVisible()) {
EndTimer();
CPWL_Wnd::SetVisible(FALSE);
}
}
}
void CPWL_Caret::InvalidateRect(CFX_FloatRect* pRect) {
if (pRect) {
CFX_FloatRect rcRefresh = CPWL_Utils::InflateRect(*pRect, 0.5f);
rcRefresh.top += 1;
rcRefresh.bottom -= 1;
CPWL_Wnd::InvalidateRect(&rcRefresh);
} else {
CPWL_Wnd::InvalidateRect(pRect);
}
}
|
