Add progress bar to zip creation.

oscar/mainwindow.cpp

@@ -2637,17 +2637,17 @@ void MainWindow::on_actionCreate_Card_zip_triggered()
         ZipFile z;
         bool ok = z.Open(filename);
         if (ok) {
-            // TODO: need to add progress bar!
-            ok = z.AddDirectory(cardPath);
+            ProgressDialog * prog = new ProgressDialog(this);
+            prog->setMessage(tr("Creating archive..."));
+            ok = z.AddDirectory(cardPath, prog);
             z.Close();
+        } else {
+            qWarning() << "Unable to open" << filename;
         }
         if (!ok) {
-            qWarning() << "Unable to create" << filename;
             QMessageBox::warning(nullptr, STR_MessageBox_Error,
                 QObject::tr("Unable to create archive!"),
                 QMessageBox::Ok);
-        } else {
-            qDebug() << "Created" << filename;
         }
     }
 }

oscar/zip.cpp

@@ -10,6 +10,8 @@
 #include "zip.h"
 #include <QDebug>
 #include <QDateTime>
+#include <QCoreApplication>
+#include "SleepLib/progressdialog.h"
 
 
 // Static functions to abstract the details of miniz from the primary logic.
@@ -51,27 +53,68 @@ void ZipFile::Close()
     }
 }
 
-bool ZipFile::AddDirectory(const QString & path, const QString & prefix)
+bool ZipFile::AddDirectory(const QString & path, ProgressDialog* progress)
+{
+    return AddDirectory(path, "", progress);
+}
+
+bool ZipFile::AddDirectory(const QString & path, const QString & prefix, ProgressDialog* progress)
 {
     bool ok;
     FileQueue queue;
     queue.AddDirectory(path, prefix);
-    ok = AddFiles(queue);
+    ok = AddFiles(queue, progress);
     return ok;
 }
 
-bool ZipFile::AddFiles(const FileQueue & queue)
+bool ZipFile::AddFiles(const FileQueue & queue, ProgressDialog* progress)
 {
     bool ok;
     
-    // TODO: add progress bar
-    qDebug() << "Adding" << queue.toString();
+    qDebug().noquote() << "Adding" << queue.toString();
+    m_abort = false;
+    m_progress = 0;
+
+    if (progress) {
+        progress->addAbortButton();
+        progress->setWindowModality(Qt::ApplicationModal);
+        progress->open();
+        connect(this, SIGNAL(setProgressMax(int)), progress, SLOT(setProgressMax(int)));
+        connect(this, SIGNAL(setProgressValue(int)), progress, SLOT(setProgressValue(int)));
+        connect(progress, SIGNAL(abortClicked()), this, SLOT(abort()));
+    }
+
+    // Always emit, since the caller may have configured and connected a progress dialog manually.
+    emit setProgressValue(m_progress);
+    emit setProgressMax(queue.byteCount() + queue.dirCount());
+    QCoreApplication::processEvents();
+
     for (auto & entry : queue.files()) {
         ok = AddFile(entry.path, entry.name);
-        if (!ok) {
+        if (!ok || m_abort) {
             break;
         }
     }
+    
+    if (progress) {
+        disconnect(progress, SIGNAL(abortClicked()), this, SLOT(abort()));
+        disconnect(this, SIGNAL(setProgressMax(int)), progress, SLOT(setProgressMax(int)));
+        disconnect(this, SIGNAL(setProgressValue(int)), progress, SLOT(setProgressValue(int)));
+        progress->close();
+        progress->deleteLater();
+    }
+
+    if (!ok) {
+        qWarning().noquote() << "Unable to create" << m_file.fileName();
+        Close();
+        m_file.remove();
+    } else if (aborted()) {
+        qDebug().noquote() << "User canceled zip creation.";
+        Close();
+        m_file.remove();
+    } else {
+        qDebug().noquote() << "Created" << m_file.fileName() << m_file.size() << "bytes";
+    }
 
     return ok;
 }
@@ -90,6 +133,7 @@ bool ZipFile::AddFile(const QString & path, const QString & name)
 
     if (fi.isDir()) {
         archive_name += QDir::separator();
+        m_progress += 1;
     } else {
         // Open and read file into memory.
         QFile f(path);
@@ -98,11 +142,16 @@ bool ZipFile::AddFile(const QString & path, const QString & name)
             return false;
         }
         data = f.readAll();
+        m_progress += data.size();
     }
 
     //qDebug() << "attempting to add" << archive_name << ":" << data.size() << "bytes";
 
     bool ok = zip_add(m_ctx, archive_name, data, fi.lastModified());
+
+    emit setProgressValue(m_progress);
+    QCoreApplication::processEvents();
+    
     return ok;
 }
 

oscar/zip.h

@@ -7,25 +7,42 @@
  * License. See the file COPYING in the main directory of the source code
  * for more details. */
 
+#include <QObject>
 #include <QString>
 #include <QDir>
 #include <QFile>
 
-class ZipFile
+class ProgressDialog;
+
+class ZipFile : public QObject
 {
+    Q_OBJECT
+
 public:
     ZipFile();
     virtual ~ZipFile();
     
     bool Open(const QString & filepath);
-    bool AddDirectory(const QString & path, const QString & archive_name="");  // add a directory and recurse
+    bool AddDirectory(const QString & path, ProgressDialog* progress=nullptr);  // add a directory and recurse
+    bool AddDirectory(const QString & path, const QString & archive_name, ProgressDialog* progress=nullptr);  // add a directory and recurse
+    bool AddFiles(const class FileQueue & queue, ProgressDialog* progress=nullptr);  // add a fixed list of files
     bool AddFile(const QString & path, const QString & archive_name);  // add a single file
-    bool AddFiles(const class FileQueue & queue);  // add a fixed list of files
     void Close();
+    
+    bool aborted() const { return m_abort; }
+
+public slots:
+    void abort() { m_abort = true; }
+
+signals:
+    void setProgressMax(int max);
+    void setProgressValue(int val);
 
 protected:
     void* m_ctx;
     QFile m_file;
+    bool m_abort;
+    int m_progress;
 };