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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#include "layout-helpers.hpp"
#include <QLabel>
namespace advss {
static std::string
getNextDelim(const std::string &text,
const std::unordered_map<std::string, QWidget *> &placeholders)
{
size_t pos = std::string::npos;
std::string res = "";
for (const auto &ph : placeholders) {
size_t newPos = text.find(ph.first);
if (newPos <= pos) {
pos = newPos;
res = ph.first;
}
}
if (pos == std::string::npos) {
return "";
}
return res;
}
void PlaceWidgets(std::string text, QBoxLayout *layout,
const std::unordered_map<std::string, QWidget *> &placeholders,
bool addStretch)
{
std::vector<std::pair<std::string, QWidget *>> labelsWidgetsPairs;
std::string delim = getNextDelim(text, placeholders);
while (delim != "") {
size_t pos = text.find(delim);
if (pos != std::string::npos) {
labelsWidgetsPairs.emplace_back(text.substr(0, pos),
placeholders.at(delim));
text.erase(0, pos + delim.length());
}
delim = getNextDelim(text, placeholders);
}
if (text != "") {
labelsWidgetsPairs.emplace_back(text, nullptr);
}
for (auto &lw : labelsWidgetsPairs) {
if (lw.first != "") {
layout->addWidget(new QLabel(lw.first.c_str()));
}
if (lw.second) {
layout->addWidget(lw.second);
}
}
if (addStretch) {
layout->addStretch();
}
}
void DeleteLayoutItemWidget(QLayoutItem *item)
{
if (item) {
auto widget = item->widget();
if (widget) {
widget->setVisible(false);
widget->deleteLater();
}
delete item;
}
}
void ClearLayout(QLayout *layout, int afterIdx)
{
QLayoutItem *item;
while ((item = layout->takeAt(afterIdx))) {
if (item->layout()) {
ClearLayout(item->layout());
delete item->layout();
}
DeleteLayoutItemWidget(item);
}
}
void SetLayoutVisible(QLayout *layout, bool visible)
{
if (!layout) {
return;
}
for (int i = 0; i < layout->count(); ++i) {
QWidget *widget = layout->itemAt(i)->widget();
QLayout *nestedLayout = layout->itemAt(i)->layout();
if (widget) {
widget->setVisible(visible);
}
if (nestedLayout) {
SetLayoutVisible(nestedLayout, visible);
}
}
}
void SetGridLayoutRowVisible(QGridLayout *layout, int row, bool visible)
{
for (int col = 0; col < layout->columnCount(); col++) {
auto item = layout->itemAtPosition(row, col);
if (!item) {
continue;
}
auto rowLayout = item->layout();
if (rowLayout) {
SetLayoutVisible(rowLayout, visible);
}
auto widget = item->widget();
if (widget) {
widget->setVisible(visible);
}
}
if (!visible) {
layout->setRowMinimumHeight(row, 0);
}
}
void AddStretchIfNecessary(QBoxLayout *layout)
{
int itemCount = layout->count();
if (itemCount > 0) {
auto lastItem = layout->itemAt(itemCount - 1);
auto lastSpacer = dynamic_cast<QSpacerItem *>(lastItem);
if (!lastSpacer) {
layout->addStretch();
}
} else {
layout->addStretch();
}
}
void RemoveStretchIfPresent(QBoxLayout *layout)
{
int itemCount = layout->count();
if (itemCount > 0) {
auto lastItem = layout->itemAt(itemCount - 1);
auto lastSpacer = dynamic_cast<QSpacerItem *>(lastItem);
if (lastSpacer) {
layout->removeItem(lastItem);
delete lastItem;
}
}
}
void MinimizeSizeOfColumn(QGridLayout *layout, int idx)
{
if (idx >= layout->columnCount()) {
return;
}
for (int i = 0; i < layout->columnCount(); i++) {
if (i == idx) {
layout->setColumnStretch(i, 0);
} else {
layout->setColumnStretch(i, 1);
}
}
int columnWidth = 0;
for (int row = 0; row < layout->rowCount(); row++) {
auto item = layout->itemAtPosition(row, idx);
if (!item) {
continue;
}
auto widget = item->widget();
if (!widget) {
continue;
}
columnWidth = std::max(columnWidth,
widget->minimumSizeHint().width());
}
layout->setColumnMinimumWidth(idx, columnWidth);
}
} // namespace advss
|
