implemented hscrolling

had to subclass `QWebView` for that. i don't like c++/qt's subclass-to-
class in the designer.

hscrollwebview.cpp

@@ -0,0 +1,14 @@
+#include "hscrollwebview.h"
+#include <QDebug>
+#include <QWheelEvent>
+#include <QWebPage>
+#include <QWebFrame>
+
+HScrollWebView::HScrollWebView(QWidget *parent) :
+    QWebView(parent)
+{
+}
+
+void HScrollWebView::wheelEvent(QWheelEvent *ev){
+    page()->currentFrame()->scroll(-1 * ev->delta(),0);
+}

hscrollwebview.h

@@ -0,0 +1,21 @@
+#ifndef HSCROLLWEBVIEW_H
+#define HSCROLLWEBVIEW_H
+
+#include <QWebView>
+
+class HScrollWebView : public QWebView
+{
+    Q_OBJECT
+public:
+    explicit HScrollWebView(QWidget *parent = 0);
+
+protected:
+    virtual void wheelEvent(QWheelEvent *ev);
+
+signals:
+
+public slots:
+
+};
+
+#endif // HSCROLLWEBVIEW_H

mainwindow.cpp

@@ -18,6 +18,9 @@ MainWindow::MainWindow(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    hswv = new HScrollWebView(this);
+    ui->splitter->addWidget(hswv);
+
     QFont font;
     font.setFamily("Courier");
     font.setFixedPitch(true);
@@ -39,6 +42,7 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(ui->actionDirectory, SIGNAL(triggered()),this,SLOT(viewDirectory()));
     connect(ui->listView, SIGNAL(clicked(QModelIndex)), this, SLOT(dirViewClicked(QModelIndex)));
 
+
     ui->actionSave->setEnabled(false);
     ui->sourceView->hide();
 
@@ -187,9 +191,9 @@ void MainWindow::textChanged(){
     t.start();
     QString newText = wrapInHTMLDoc(markdown(ui->plainTextEdit->toPlainText()));
     ui->statusBar->showMessage(QString("Render time: %1 ms").arg(t.elapsed()));
-    QPoint pos = ui->webView->page()->currentFrame()->scrollPosition();
-    ui->webView->setHtml(newText);
-    ui->webView->page()->currentFrame()->setScrollPosition(pos);
+    QPoint pos = hswv->page()->currentFrame()->scrollPosition();
+    hswv->setHtml(newText);
     ui->sourceView->setPlainText(newText);
+    hswv->page()->currentFrame()->setScrollPosition(pos);
 }
 

mainwindow.h

@@ -5,6 +5,8 @@
 #include <QFile>
 #include <QModelIndex>
 
+#include "hscrollwebview.h"
+
 namespace Ui {
 class MainWindow;
 }
@@ -34,6 +36,8 @@ public slots:
 
     Ui::MainWindow *ui;
     QFile *currentFile;
+
+    HScrollWebView *hswv;
 };
 
 #endif // MAINWINDOW_H

mainwindow.ui

@@ -35,13 +35,6 @@
         </size>
        </property>
       </widget>
-      <widget class="QWebView" name="webView">
-       <property name="url">
-        <url>
-         <string>about:blank</string>
-        </url>
-       </property>
-      </widget>
       <widget class="QPlainTextEdit" name="sourceView"/>
      </widget>
     </item>
@@ -111,13 +104,6 @@
   </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
- <customwidgets>
-  <customwidget>
-   <class>QWebView</class>
-   <extends>QWidget</extends>
-   <header>QtWebKit/QWebView</header>
-  </customwidget>
- </customwidgets>
  <resources/>
  <connections/>
 </ui>

qarkdown.pro

@@ -11,9 +11,11 @@ TEMPLATE = app
 
 
 SOURCES += main.cpp\
-        mainwindow.cpp
+        mainwindow.cpp \
+    hscrollwebview.cpp
 
-HEADERS  += mainwindow.h
+HEADERS  += mainwindow.h \
+    hscrollwebview.h
 
 FORMS    += mainwindow.ui