Make MarkDownEditor example more usable

- Use a fixed width font for the editor.
- Accept .md file as command line argument.

Change-Id: I97e3bb930569240e195ecc21ed4ce3d9acd3ff66
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>

3 files changed, 20 insertions, 10 deletions

diff --git a/examples/webenginewidgets/markdowneditor/doc/src/markdowneditor.qdoc b/examples/webenginewidgets/markdowneditor/doc/src/markdowneditor.qdoc
index ddea067b7..5a599a1b2 100644
--- a/examples/webenginewidgets/markdowneditor/doc/src/markdowneditor.qdoc
+++ b/examples/webenginewidgets/markdowneditor/doc/src/markdowneditor.qdoc
@@ -116,7 +116,8 @@
     \printto connect
 
     The constructor first calls \c setupUi to construct the widgets and menu
-    actions according to the UI file. It then makes sure our custom
+    actions according to the UI file. The text editor font is set to one
+    with a fixed character width. It then makes sure our custom
     \c PreviewPage is used by the QWebEngineView instance in \c{ui->preview}.
 
     \printto ui->preview
diff --git a/examples/webenginewidgets/markdowneditor/mainwindow.cpp b/examples/webenginewidgets/markdowneditor/mainwindow.cpp
index 352b7944a..3c6705686 100644
--- a/examples/webenginewidgets/markdowneditor/mainwindow.cpp
+++ b/examples/webenginewidgets/markdowneditor/mainwindow.cpp
@@ -43,6 +43,7 @@
 
 #include <QFile>
 #include <QFileDialog>
+#include <QFontDatabase>
 #include <QMessageBox>
 #include <QTextStream>
 #include <QWebChannel>
@@ -52,6 +53,7 @@ MainWindow::MainWindow(QWidget *parent) :
     ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+    ui->editor->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
 
     PreviewPage *page = new PreviewPage(this);
     ui->preview->setPage(page);
@@ -84,6 +86,19 @@ MainWindow::~MainWindow()
     delete ui;
 }
 
+void MainWindow::openFile(const QString &path)
+{
+    QFile f(path);
+    if (!f.open(QIODevice::ReadOnly)) {
+        QMessageBox::warning(this, windowTitle(),
+                             tr("Could not open file %1: %2").arg(
+                                 QDir::toNativeSeparators(path), f.errorString()));
+        return;
+    }
+    m_filePath = path;
+    ui->editor->setPlainText(f.readAll());
+}
+
 bool MainWindow::isModified() const
 {
     return ui->editor->document()->isModified();
@@ -117,15 +132,7 @@ void MainWindow::onFileOpen()
     if (path.isEmpty())
         return;
 
-    QFile f(path);
-    if (!f.open(QIODevice::ReadOnly)) {
-        QMessageBox::warning(this, windowTitle(),
-                             tr("Could not open file %1: %2").arg(
-                                 QDir::toNativeSeparators(path), f.errorString()));
-        return;
-    }
-    m_filePath = path;
-    ui->editor->setPlainText(f.readAll());
+    openFile(path);
 }
 
 void MainWindow::onFileSave()
diff --git a/examples/webenginewidgets/markdowneditor/mainwindow.h b/examples/webenginewidgets/markdowneditor/mainwindow.h
index 596b5c504..fc04f6beb 100644
--- a/examples/webenginewidgets/markdowneditor/mainwindow.h
+++ b/examples/webenginewidgets/markdowneditor/mainwindow.h
@@ -59,6 +59,8 @@ public:
     explicit MainWindow(QWidget *parent = 0);
     ~MainWindow();
 
+    void openFile(const QString &path);
+
 private slots:
     void onFileNew();
     void onFileOpen();