[Move refactor] Move dialogs to interface/widgets/ (#6234)

* Move dialogs/ underneath interface/widgets since QDialog inherits from QWidget.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/dialogs/dlg_edit_avatar.cpp

@@ -0,0 +1,87 @@
+#include "dlg_edit_avatar.h"
+
+#include <QBuffer>
+#include <QDebug>
+#include <QDialogButtonBox>
+#include <QDir>
+#include <QFileDialog>
+#include <QImageReader>
+#include <QLabel>
+#include <QPushButton>
+#include <QVBoxLayout>
+#include <libcockatrice/utility/trice_limits.h>
+
+DlgEditAvatar::DlgEditAvatar(QWidget *parent) : QDialog(parent), image()
+{
+    imageLabel = new QLabel(tr("No image chosen."));
+    imageLabel->setFixedSize(400, 200);
+    imageLabel->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
+    imageLabel->setStyleSheet("border: 1px solid #000");
+
+    textLabel = new QLabel(tr("To change your avatar, choose a new image.\nTo remove your current avatar, confirm "
+                              "without choosing a new image."));
+    browseButton = new QPushButton(tr("Browse..."));
+    connect(browseButton, &QPushButton::clicked, this, &DlgEditAvatar::actBrowse);
+
+    QGridLayout *grid = new QGridLayout;
+    grid->addWidget(imageLabel, 0, 0, 1, 2);
+    grid->addWidget(textLabel, 1, 0);
+    grid->addWidget(browseButton, 1, 1);
+
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &DlgEditAvatar::actOk);
+    connect(buttonBox, &QDialogButtonBox::rejected, this, &DlgEditAvatar::reject);
+
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    mainLayout->addLayout(grid);
+    mainLayout->addWidget(buttonBox);
+    setLayout(mainLayout);
+
+    setWindowTitle(tr("Change avatar"));
+    setFixedHeight(sizeHint().height());
+    setMinimumWidth(300);
+}
+
+void DlgEditAvatar::actOk()
+{
+    accept();
+}
+
+void DlgEditAvatar::actBrowse()
+{
+    QString fileName =
+        QFileDialog::getOpenFileName(this, tr("Open Image"), QDir::homePath(), tr("Image Files (*.png *.jpg *.bmp)"));
+    if (fileName.isEmpty()) {
+        imageLabel->setText(tr("No image chosen."));
+        return;
+    }
+
+    QImageReader imgReader;
+    imgReader.setDecideFormatFromContent(true);
+    imgReader.setFileName(fileName);
+    if (!imgReader.read(&image)) {
+        qCWarning(DlgEditAvatarLog) << "Avatar image loading failed for file:" << fileName;
+        imageLabel->setText(tr("Invalid image chosen."));
+        return;
+    }
+    imageLabel->setPixmap(QPixmap::fromImage(image).scaled(400, 200, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+}
+
+QByteArray DlgEditAvatar::getImage()
+{
+    if (image.isNull()) {
+        return QByteArray();
+    }
+
+    for (;;) {
+        QByteArray ba;
+        QBuffer buffer(&ba);
+        buffer.open(QIODevice::WriteOnly);
+        image.save(&buffer, "JPG");
+        if (ba.length() > MAX_FILE_LENGTH) {
+            image = image.scaledToWidth(image.width() / 2); // divide the amount of pixels in four to get the size down
+        } else {
+            return ba;
+        }
+    }
+}