From 5e89aedf168b8972477436ee541eaa45c2154623 Mon Sep 17 00:00:00 2001
From: Laurent Montel <montel@kde.org>
Date: Sun, 14 Sep 2003 21:26:04 +0000
Subject: [PATCH] Use key to move page

svn path=/trunk/kdegraphics/kpdf/; revision=251097
---
 kpdf/kpdf_pagewidget.cc | 54 ++++++++++++++++++++++++++++++++++++++++-
 kpdf/kpdf_pagewidget.h  |  8 +++++-
 2 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/kpdf/kpdf_pagewidget.cc b/kpdf/kpdf_pagewidget.cc
index ddbb7b0e1..a77623faf 100644
--- a/kpdf/kpdf_pagewidget.cc
+++ b/kpdf/kpdf_pagewidget.cc
@@ -21,7 +21,8 @@ namespace KPDF
           m_pressedAction( 0 )
     {
         m_outputdev = new QOutputDevPixmap();
-        setMouseTracking(true);
+        setFocusPolicy( QWidget::StrongFocus );
+        viewport()->setFocusPolicy( QWidget::WheelFocus );
     }
     PageWidget::~PageWidget()
     {
@@ -129,6 +130,57 @@ namespace KPDF
         setVScrollBarMode( b ? Auto : AlwaysOff );
     }
 
+    void PageWidget::scrollRight()
+    {
+        horizontalScrollBar()->addLine();
+    }
+
+    void PageWidget::scrollLeft()
+    {
+        horizontalScrollBar()->subtractLine();
+    }
+
+    void PageWidget::scrollDown()
+    {
+        verticalScrollBar()->addLine();
+    }
+
+    void PageWidget::scrollUp()
+    {
+        verticalScrollBar()->subtractLine();
+    }
+
+    void PageWidget::scrollBottom()
+    {
+        verticalScrollBar()->setValue( verticalScrollBar()->maxValue() );
+    }
+
+    void PageWidget::scrollTop()
+    {
+        verticalScrollBar()->setValue( verticalScrollBar()->minValue() );
+    }
+
+    void PageWidget::keyPressEvent( QKeyEvent* e )
+    {
+        switch ( e->key() ) {
+        case Key_Up:
+            scrollUp();
+            break;
+        case Key_Down:
+            scrollDown();
+            break;
+        case Key_Left:
+            scrollLeft();
+            break;
+        case Key_Right:
+            scrollRight();
+            break;
+        default:
+            e->ignore();
+            return;
+        }
+        e->accept();
+    }
     void PageWidget::updatePixmap()
     {
         if ( m_doc )
diff --git a/kpdf/kpdf_pagewidget.h b/kpdf/kpdf_pagewidget.h
index 9cb6a2190..40f8175b1 100644
--- a/kpdf/kpdf_pagewidget.h
+++ b/kpdf/kpdf_pagewidget.h
@@ -38,11 +38,17 @@ namespace KPDF
         void zoomOut();
 
         void updatePixmap();
-
+        void scrollUp();
+        void scrollDown();
+        void scrollRight();
+        void scrollLeft();
+        void scrollBottom();
+        void scrollTop();
     signals:
         void linkClicked(LinkAction*);
 
     protected:
+        virtual void keyPressEvent( QKeyEvent* );
         void contentsMousePressEvent(QMouseEvent*);
         void contentsMouseReleaseEvent(QMouseEvent*);
         void contentsMouseMoveEvent(QMouseEvent*);