statusbar: added basic task UI feedback without requiring the task

manager to be open
2020-03-03 01:50:51 +11:00
parent d8f83f1452
commit 02909c6ba9
6 changed files with 116 additions and 2 deletions
@@ -0,0 +1,55 @@
+#include "mainstatusbar.h"
+
+#include <QCoreApplication>
+
+MainStatusBar::MainStatusBar(QWidget *parent) :
+  QStatusBar(parent),
+  manager_(nullptr)
+{
+  setSizeGripEnabled(false);
+
+  bar_ = new QProgressBar();
+  addPermanentWidget(bar_);
+
+  bar_->setMinimum(0);
+  bar_->setMaximum(100);
+  bar_->setVisible(false);
+
+  showMessage(tr("Welcome to %1 %2").arg(QCoreApplication::applicationName(), QCoreApplication::applicationVersion()));
+}
+
+void MainStatusBar::ConnectTaskManager(TaskManager *manager)
+{
+  if (manager_) {
+    disconnect(manager_, &TaskManager::TaskListChanged, this, &MainStatusBar::UpdateStatus);
+  }
+
+  manager_ = manager;
+
+  if (manager_) {
+    connect(manager_, &TaskManager::TaskListChanged, this, &MainStatusBar::UpdateStatus);
+  }
+}
+
+void MainStatusBar::UpdateStatus()
+{
+  if (!manager_) {
+    return;
+  }
+
+  if (manager_->GetTaskCount() == 0) {
+    clearMessage();
+    bar_->setVisible(false);
+  } else {
+    Task* t = manager_->GetFirstTask();
+
+    if (manager_->GetTaskCount() == 1) {
+      showMessage(t->GetTitle());
+    } else {
+      showMessage(tr("Running %1 background tasks").arg(manager_->GetTaskCount()));
+    }
+
+    bar_->setVisible(true);
+    connect(t, &Task::ProgressChanged, bar_, &QProgressBar::setValue);
+  }
+}