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
|
#include "modinfodialogimages.h"
#include "ui_modinfodialog.h"
ScalableImage::ScalableImage(QImage original)
: m_original(std::move(original)), m_border(1)
{
auto sp = sizePolicy();
sp.setHeightForWidth(true);
setSizePolicy(sp);
}
void ScalableImage::setImage(QImage image)
{
m_original = std::move(image);
m_scaled = {};
update();
}
const QImage& ScalableImage::image() const
{
return m_original;
}
bool ScalableImage::hasHeightForWidth() const
{
return true;
}
int ScalableImage::heightForWidth(int w) const
{
return w;
}
void ScalableImage::paintEvent(QPaintEvent* e)
{
if (m_original.isNull()) {
return;
}
const QRect widgetRect = rect();
const QRect imageRect = widgetRect.adjusted(
m_border, m_border, -m_border, -m_border);
const auto ratio = std::min({
1.0,
static_cast<double>(imageRect.width()) / m_original.width(),
static_cast<double>(imageRect.height()) / m_original.height()});
const QSize scaledSize(
static_cast<int>(std::round(m_original.width() * ratio)),
static_cast<int>(std::round(m_original.height() * ratio)));
if (m_scaled.isNull() || m_scaled.size() != scaledSize) {
qDebug() << "scaled to " << scaledSize;
m_scaled = m_original.scaled(
scaledSize.width(), scaledSize.height(),
Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
}
const QRect drawBorderRect = widgetRect.adjusted(0, 0, -1, -1);
const QRect drawImageRect(
(imageRect.left()+imageRect.width()/2) - m_scaled.width()/2,
(imageRect.top()+imageRect.height()/2) - m_scaled.height()/2,
m_scaled.width(), m_scaled.height());
QPainter painter(this);
painter.setPen(QColor(Qt::black));
painter.drawRect(drawBorderRect);
painter.drawImage(drawImageRect, m_scaled);
}
void ScalableImage::mousePressEvent(QMouseEvent* e)
{
if (e->button() == Qt::LeftButton) {
emit clicked(m_original);
}
}
ImagesTab::ImagesTab(Ui::ModInfoDialog* ui)
: ui(ui), m_image(new ScalableImage)
{
ui->imagesImage->layout()->addWidget(m_image);
ui->imagesThumbnails->setLayout(new QVBoxLayout);
ui->tabImagesSplitter->setSizes({128, 1});
ui->tabImagesSplitter->setStretchFactor(0, 0);
ui->tabImagesSplitter->setStretchFactor(1, 1);
}
void ImagesTab::clear()
{
m_image->setImage({});
while (ui->imagesThumbnails->layout()->count() > 0) {
auto* item = ui->imagesThumbnails->layout()->takeAt(0);
delete item->widget();
delete item;
}
static_cast<QVBoxLayout*>(ui->imagesThumbnails->layout())->addStretch(1);
}
bool ImagesTab::feedFile(const QString& rootPath, const QString& fullPath)
{
static constexpr const char* extensions[] = {
".png", ".jpg"
};
for (const auto* e : extensions) {
if (fullPath.endsWith(e, Qt::CaseInsensitive)) {
add(fullPath);
return true;
}
}
return false;
}
void ImagesTab::add(const QString& fullPath)
{
QImage image = QImage(fullPath);
if (image.isNull()) {
qWarning() << "ImagesTab: '" << fullPath << "' is not a valid image";
return;
}
auto* thumbnail = new ScalableImage(std::move(image));
QObject::connect(
thumbnail, &ScalableImage::clicked,
[&](const QImage& image){ onClicked(image); });
static_cast<QVBoxLayout*>(ui->imagesThumbnails->layout())->insertWidget(
ui->imagesThumbnails->layout()->count() - 1, thumbnail);
}
void ImagesTab::onClicked(const QImage& original)
{
m_image->setImage(original);
}
|
