Long live Qt!

1 files changed, 41 insertions, 0 deletions

diff --git a/doc/src/snippets/code/src_qt3support_dialogs_q3progressdialog.cpp b/doc/src/snippets/code/src_qt3support_dialogs_q3progressdialog.cpp
new file mode 100644
index 0000000..8aeafe8
--- /dev/null
+++ b/doc/src/snippets/code/src_qt3support_dialogs_q3progressdialog.cpp
@@ -0,0 +1,41 @@
+//! [0]
+Q3ProgressDialog progress("Copying files...", "Abort Copy", numFiles,
+                          this, "progress", true);
+for (int i = 0; i < numFiles; i++) {
+    progress.setProgress(i);
+    qApp->processEvents();
+
+    if (progress.wasCanceled())
+        break;
+    //... copy one file
+}
+progress.setProgress(numFiles);
+//! [0]
+
+
+//! [1]
+Operation::Operation(QObject *parent = 0)
+    : QObject(parent), steps(0)
+{
+    pd = new Q3ProgressDialog("Operation in progress.", "Cancel", 100);
+    connect(pd, SIGNAL(canceled()), this, SLOT(cancel()));
+    t = new QTimer(this);
+    connect(t, SIGNAL(timeout()), this, SLOT(perform()));
+    t->start(0);
+}
+
+void Operation::perform()
+{
+    pd->setProgress(steps);
+    //... perform one percent of the operation
+    steps++;
+    if (steps > pd->totalSteps())
+        t->stop();
+}
+
+void Operation::cancel()
+{
+    t->stop();
+    //... cleanup
+}
+//! [1]