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
|
// 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_caret.h"
#include <sstream>
#include "core/fxge/cfx_graphstatedata.h"
#include "core/fxge/cfx_pathdata.h"
#include "core/fxge/cfx_renderdevice.h"
#include "fpdfsdk/pwl/cpwl_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() {}
ByteString CPWL_Caret::GetClassName() const {
return "CPWL_Caret";
}
void CPWL_Caret::DrawThisAppearance(CFX_RenderDevice* pDevice,
const CFX_Matrix& mtUser2Device) {
if (!IsVisible() || !m_bFlash)
return;
CFX_FloatRect rcRect = GetCaretRect();
CFX_FloatRect rcClip = GetClipRect();
CFX_PathData path;
float fCaretX = rcRect.left + m_fWidth * 0.5f;
float fCaretTop = rcRect.top;
float fCaretBottom = rcRect.bottom;
if (!rcClip.IsEmpty()) {
rcRect.Intersect(rcClip);
if (rcRect.IsEmpty())
return;
fCaretTop = rcRect.top;
fCaretBottom = rcRect.bottom;
}
path.AppendPoint(CFX_PointF(fCaretX, fCaretBottom), FXPT_TYPE::MoveTo, false);
path.AppendPoint(CFX_PointF(fCaretX, fCaretTop), FXPT_TYPE::LineTo, false);
CFX_GraphStateData gsd;
gsd.m_LineWidth = m_fWidth;
pDevice->DrawPath(&path, &mtUser2Device, &gsd, 0, ArgbEncode(255, 0, 0, 0),
FXFILL_ALTERNATE);
}
void CPWL_Caret::TimerProc() {
if (m_nDelay > 0) {
--m_nDelay;
return;
}
m_bFlash = !m_bFlash;
InvalidateRect(nullptr);
// Note, |this| may no longer be viable at this point. If more work needs
// to be done, add an observer.
}
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(bool bVisible,
const CFX_PointF& ptHead,
const CFX_PointF& ptFoot) {
if (!bVisible) {
m_ptHead = CFX_PointF();
m_ptFoot = CFX_PointF();
m_bFlash = false;
if (!IsVisible())
return;
EndTimer();
CPWL_Wnd::SetVisible(false);
// Note, |this| may no longer be viable at this point. If more work needs
// to be done, check the return value of SetVisible().
return;
}
if (!IsVisible()) {
m_ptHead = ptHead;
m_ptFoot = ptFoot;
EndTimer();
BeginTimer(PWL_CARET_FLASHINTERVAL);
if (!CPWL_Wnd::SetVisible(true))
return;
m_bFlash = true;
Move(m_rcInvalid, false, true);
// Note, |this| may no longer be viable at this point. If more work needs
// to be done, check the return value of Move().
return;
}
if (m_ptHead == ptHead && m_ptFoot == ptFoot)
return;
m_ptHead = ptHead;
m_ptFoot = ptFoot;
m_bFlash = true;
Move(m_rcInvalid, false, true);
// Note, |this| may no longer be viable at this point. If more work
// needs to be done, check the return value of Move().
}
bool CPWL_Caret::InvalidateRect(CFX_FloatRect* pRect) {
if (!pRect) {
return CPWL_Wnd::InvalidateRect(nullptr);
}
CFX_FloatRect rcRefresh = *pRect;
if (!rcRefresh.IsEmpty()) {
rcRefresh.Inflate(0.5f, 0.5f);
rcRefresh.Normalize();
}
rcRefresh.top += 1;
rcRefresh.bottom -= 1;
return CPWL_Wnd::InvalidateRect(&rcRefresh);
}
bool CPWL_Caret::SetVisible(bool bVisible) {
return true;
}
|
