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
|
#include "filterwidget.h"
#include "eventfilter.h"
FilterWidget::FilterWidget()
: m_edit(nullptr), m_eventFilter(nullptr), m_clear(nullptr)
{
}
void FilterWidget::set(QLineEdit* edit)
{
unhook();
m_edit = edit;
if (!m_edit) {
return;
}
createClear();
hookEvents();
clear();
}
void FilterWidget::clear()
{
if (!m_edit) {
return;
}
m_edit->clear();
}
bool FilterWidget::matches(std::function<bool (const QString& what)> pred) const
{
const QStringList ORList = [&] {
QString filterCopy = QString(m_text);
filterCopy.replace("||", ";").replace("OR", ";").replace("|", ";");
return filterCopy.split(";", QString::SkipEmptyParts);
}();
if (ORList.isEmpty() || !pred) {
return true;
}
// split in ORSegments that internally use AND logic
for (auto& ORSegment : ORList) {
QStringList ANDKeywords = ORSegment.split(" ", QString::SkipEmptyParts);
bool segmentGood = true;
// check each word in the segment for match, each word needs to be matched
// but it doesn't matter where.
for (auto& currentKeyword : ANDKeywords) {
if (!pred(currentKeyword)) {
segmentGood = false;
}
}
if (segmentGood) {
// the last AND loop didn't break so the ORSegments is true so mod
// matches filter
return true;
}
}
return false;
}
void FilterWidget::unhook()
{
if (m_clear) {
delete m_clear;
m_clear = nullptr;
}
if (m_edit) {
m_edit->removeEventFilter(m_eventFilter);
}
}
void FilterWidget::createClear()
{
m_clear = new QToolButton(m_edit);
QPixmap pixmap(":/MO/gui/edit_clear");
m_clear->setIcon(QIcon(pixmap));
m_clear->setIconSize(pixmap.size());
m_clear->setCursor(Qt::ArrowCursor);
m_clear->setStyleSheet("QToolButton { border: none; padding: 0px; }");
m_clear->hide();
QObject::connect(m_clear, &QToolButton::clicked, [&]{ clear(); });
QObject::connect(m_edit, &QLineEdit::textChanged, [&]{ onTextChanged(); });
repositionClearButton();
}
void FilterWidget::hookEvents()
{
m_eventFilter = new EventFilter(m_edit, [&](auto* w, auto* e) {
if (e->type() == QEvent::Resize) {
onResized();
}
return false;
});
m_edit->installEventFilter(m_eventFilter);
}
void FilterWidget::onTextChanged()
{
m_clear->setVisible(!m_edit->text().isEmpty());
const auto text = m_edit->text();
if (text != m_text) {
m_text = text;
if (changed) {
changed();
}
}
}
void FilterWidget::onResized()
{
repositionClearButton();
}
void FilterWidget::repositionClearButton()
{
if (!m_clear) {
return;
}
const QSize sz = m_clear->sizeHint();
const int frame = m_edit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
const auto r = m_edit->rect();
const auto x = r.right() - frame - sz.width();
const auto y = (r.bottom() + 1 - sz.height()) / 2;
m_clear->move(x, y);
}
|
