Fix crash when page doesn't exist

svn path=/trunk/kdegraphics/kpdf/; revision=251001
23 years ago · e1ba221cce
parent 36c336d237
commit e1ba221cce
1 changed files with 6 additions and 0 deletions
--- a/kpdf/kpdf_part.cpp
+++ b/kpdf/kpdf_part.cpp
@ -93,6 +93,9 @@ Part::~Part()
 void Part::slotNextPage()
 {
    m_currentPage = pdfpartview->pagesListBox->currentItem() + 1;
+    if ( m_doc && m_currentPage >= m_doc->getNumPages())
+        return;
+
    pdfpartview->pagesListBox->setCurrentItem(m_currentPage);
    m_outputDev->nextPage();
 }
@ -100,6 +103,9 @@ void Part::slotNextPage()
 void Part::slotPreviousPage()
 {
    m_currentPage = pdfpartview->pagesListBox->currentItem() - 1;
+    if ( m_currentPage  < 0)
+        return;
+
    pdfpartview->pagesListBox->setCurrentItem(m_currentPage );
    m_outputDev->previousPage();
 }