initial commit

client/gui/dialogs/CancelableTaskDialog.cpp

@@ -0,0 +1,50 @@
+#include "dialogs/CancelableTaskDialog.h"
+
+#include <QBoxLayout>
+#include <QLabel>
+#include <QProgressBar>
+#include <QPushButton>
+
+CancelableTaskDialog::CancelableTaskDialog(const QString& title,
+                                           const QString& message,
+                                           QWidget* parent)
+    : QDialog(parent) {
+    setWindowTitle(title);
+    setModal(true);
+    setMinimumWidth(420);
+
+    auto* root = new QVBoxLayout(this);
+    root->setContentsMargins(14, 14, 14, 14);
+    root->setSpacing(10);
+
+    m_label = new QLabel(message, this);
+    m_label->setWordWrap(true);
+    root->addWidget(m_label);
+
+    m_bar = new QProgressBar(this);
+    m_bar->setRange(0, 0); // 不定进度
+    root->addWidget(m_bar);
+
+    auto* row = new QHBoxLayout();
+    row->addStretch(1);
+    m_btnCancel = new QPushButton(QStringLiteral("取消"), this);
+    row->addWidget(m_btnCancel);
+    root->addLayout(row);
+
+    connect(m_btnCancel, &QPushButton::clicked, this, &CancelableTaskDialog::onCancel);
+}
+
+void CancelableTaskDialog::setMessage(const QString& message) {
+    if (m_label) {
+        m_label->setText(message);
+    }
+}
+
+void CancelableTaskDialog::onCancel() {
+    if (m_canceled) {
+        return;
+    }
+    m_canceled = true;
+    emit canceled();
+}
+