Add some bad allocation checks

2017-08-12 22:55:29 +02:00 · 2017-08-12 22:55:29 +02:00 · abd501b558
parent 2a85f7e977
commit abd501b558
24 changed files with 866 additions and 219 deletions
--- a/src/fapp.cpp
+++ b/src/fapp.cpp
@ -312,8 +312,17 @@ void FApplication::init()
  gpm_ev.x = -1;
 #endif

+  try
+  {
    zero_point = new FPoint(0,0);
    event_queue = new eventQueue;
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    std::abort();
+  }
+
  // init arrays with '\0'
  std::fill_n (k_buf, sizeof(k_buf), '\0');
  std::fill_n (fifo_buf, fifo_buf_size, '\0');
--- a/src/fbutton.cpp
+++ b/src/fbutton.cpp
@ -253,7 +253,15 @@ void FButton::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

@ -502,10 +510,18 @@ void FButton::draw()
  hotkey_offset = 0;
  space = int(' ');

+  try
+  {
    if ( isMonochron() || getMaxColor() < 16 )
      ButtonText = new wchar_t[length+3]();
    else
      ButtonText = new wchar_t[length+1]();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  txt  = FString(text);
  src  = const_cast<wchar_t*>(txt.wc_str());
--- a/src/fbuttongroup.cpp
+++ b/src/fbuttongroup.cpp
@ -206,7 +206,16 @@ void FButtonGroup::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

@ -491,7 +500,17 @@ void FButtonGroup::drawLabel()
  txt = " " + text + " ";
  length = txt.getLength();
  hotkeypos = -1;
+
+  try
+  {
    LabelText = new wchar_t[length+1]();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  src = const_cast<wchar_t*>(txt.wc_str());
  dest = const_cast<wchar_t*>(LabelText);

--- a/src/fdialog.cpp
+++ b/src/fdialog.cpp
@ -767,12 +767,21 @@ void FDialog::onMouseMove (FMouseEvent* ev)
        const FPoint& g = ev->getTermPos();
        const FPoint& p = dialog_menu->termToWidgetPos(g);
        int b = ev->getButton();
+
+        try
+        {
          FMouseEvent* _ev = new FMouseEvent (fc::MouseMove_Event, p, g, b);
          dialog_menu->mouse_down = true;
          setClickedWidget(dialog_menu);
          dialog_menu->onMouseMove(_ev);
          delete _ev;
        }
+        catch (const std::bad_alloc& ex)
+        {
+          std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+          return;
+        }
+      }
    }

    if ( mouse_x > getWidth() - zoom_btn && mouse_y == 1 && zoom_button_active )
@ -1058,9 +1067,27 @@ void FDialog::init()
    old_focus->redraw();
  }

+  try
+  {
    accelerator_list = new Accelerators();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  // Add the dialog menu
+  try
+  {
    dialog_menu = new FMenu ("-", this);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  dialog_menu->setPos (getX(), getY()+1);
  dgl_menuitem = dialog_menu->getItem();

@ -1070,7 +1097,16 @@ void FDialog::init()
    dgl_menuitem->unsetFocusable();
  }

+  try
+  {
    move_size_item = new FMenuItem (dialog_menu);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  move_size_item->setText ("&Move/Size");
  move_size_item->setStatusbarMessage ("Move or change the size of the window");

@ -1080,7 +1116,16 @@ void FDialog::init()
    F_METHOD_CALLBACK (this, &FDialog::cb_move)
  );

+  try
+  {
    zoom_item = new FMenuItem (dialog_menu);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  setZoomItem();
  zoom_item->setDisable();

@ -1090,7 +1135,16 @@ void FDialog::init()
    F_METHOD_CALLBACK (this, &FDialog::cb_zoom)
  );

+  try
+  {
    close_item = new FMenuItem ("&Close", dialog_menu);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  close_item->setStatusbarMessage ("Close this window");

  close_item->addCallback
@ -1429,7 +1483,16 @@ void FDialog::cb_move (FWidget*, data_ptr)
    setReverse(false);

  save_geometry = getGeometry();
+
+  try
+  {
    tooltip = new FToolTip(this);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  if ( isResizeable() )
  {
--- a/src/ffiledialog.cpp
+++ b/src/ffiledialog.cpp
@ -375,10 +375,18 @@ const FString FFileDialog::fileOpenChooser ( FWidget* parent
  if ( file_filter.isNull() || file_filter.isEmpty() )
    file_filter = FString("*");

+  try
+  {
    fileopen = new FFileDialog ( path
                               , file_filter
                               , FFileDialog::Open
                               , parent );
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return FString();
+  }

  if ( fileopen->exec() == FDialog::Accept )
    ret = fileopen->getPath() + fileopen->getSelectedFile();
@ -410,10 +418,18 @@ const FString FFileDialog::fileSaveChooser ( FWidget* parent
  if ( file_filter.isNull() || file_filter.isEmpty() )
    file_filter = FString("*");

+  try
+  {
    fileopen = new FFileDialog ( path
                               , file_filter
                               , FFileDialog::Save
                               , parent );
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return FString();
+  }

  if ( fileopen->exec() == FDialog::Accept )
    ret = fileopen->getPath() + fileopen->getSelectedFile();
@ -490,6 +506,8 @@ void FFileDialog::init()
  else
    FDialog::setText("Open file");

+  try
+  {
    filename = new FLineEdit(this);
    filename->setLabelText("File&name");
    filename->setText(filter_pattern);
@ -513,6 +531,12 @@ void FFileDialog::init()

    open->setGeometry(30, 10, 9, 1);
    setGeometry (x, y, getWidth(), getHeight());
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  filename->addCallback
  (
--- a/src/flabel.cpp
+++ b/src/flabel.cpp
@ -158,7 +158,16 @@ void FLabel::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[getWidth()] = '\0';
  setPrintPos (1,1);
@ -180,10 +189,19 @@ void FLabel::onMouseDown (FMouseEvent* ev)
      int b = ev->getButton();
      const FPoint& tp = ev->getTermPos();
      const FPoint& p = parent->termToWidgetPos(tp);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDown_Event, p, tp, b);
        FApplication::sendEvent (parent, _ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        return;
+      }
+    }

    return;
  }
@ -468,7 +486,17 @@ void FLabel::draw()
    while ( y < text_lines && y < uInt(getHeight()) )
    {
      length = multiline_text[y].getLength();
+
+      try
+      {
        LabelText = new wchar_t[length+1]();
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        return;
+      }
+
      src  = const_cast<wchar_t*>(multiline_text[y].wc_str());
      dest = const_cast<wchar_t*>(LabelText);

@ -499,7 +527,17 @@ void FLabel::draw()
  else
  {
    length = text.getLength();
+
+    try
+    {
      LabelText = new wchar_t[length+1]();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return;
+    }
+
    src  = const_cast<wchar_t*>(text.wc_str());
    dest = const_cast<wchar_t*>(LabelText);
    hotkeypos = getHotkeyPos (src, dest, length);
--- a/src/flineedit.cpp
+++ b/src/flineedit.cpp
@ -193,7 +193,16 @@ void FLineEdit::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

--- a/src/flistbox.cpp
+++ b/src/flistbox.cpp
@ -243,7 +243,16 @@ void FListBox::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset (blank, ' ', uLong(size));
  blank[size] = '\0';

@ -369,7 +378,16 @@ void FListBox::clear()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset (blank, ' ', uLong(size));
  blank[size] = '\0';

@ -1225,6 +1243,8 @@ void FListBox::init()
  setForegroundColor (wc.dialog_fg);
  setBackgroundColor (wc.dialog_bg);

+  try
+  {
    vbar = new FScrollbar(fc::vertical, this);
    vbar->setMinimum(0);
    vbar->setValue(0);
@ -1234,6 +1254,12 @@ void FListBox::init()
    hbar->setMinimum(0);
    hbar->setValue(0);
    hbar->hide();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  setGeometry (1, 1, 5, 4, false);  // initialize geometry values

--- a/src/flistview.cpp
+++ b/src/flistview.cpp
@ -281,12 +281,20 @@ void FListView::insert (FListViewItem* item)
 void FListView::insert ( const std::vector<FString>& cols
                       , data_ptr d
                       , FListView* parent )
+{
+  try
  {
    if ( parent == 0 )
      new FListViewItem (cols, d, this);
    else
      new FListViewItem (cols, d, parent);
  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+}

 //----------------------------------------------------------------------
 void FListView::insert ( const std::vector<long>& cols
@ -874,6 +882,8 @@ void FListView::init()
  setForegroundColor (wc.dialog_fg);
  setBackgroundColor (wc.dialog_bg);

+  try
+  {
    vbar = new FScrollbar(fc::vertical, this);
    vbar->setMinimum(0);
    vbar->setValue(0);
@ -883,6 +893,12 @@ void FListView::init()
    hbar->setMinimum(0);
    hbar->setValue(0);
    hbar->hide();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  setGeometry (1, 1, 5, 4, false);  // initialize geometry values

--- a/src/fmenu.cpp
+++ b/src/fmenu.cpp
@ -33,8 +33,17 @@ FMenu::FMenu (const FString& txt, FWidget* parent)
  , max_item_width(0)
  , mouse_down(false)
  , has_checkable_items(false)
+{
+  try
  {
    item = new FMenuItem(txt, parent);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  init(parent);
 }

@ -582,11 +591,20 @@ void FMenu::onMouseMove (FMouseEvent* ev)
      const FPoint& t = ev->getTermPos();
      const FPoint& p = open_sub_menu->termToWidgetPos(t);
      int b = ev->getButton();
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseMove_Event, p, t, b);
        open_sub_menu->mouse_down = true;
        setClickedWidget(open_sub_menu);
        open_sub_menu->onMouseMove(_ev);
        delete _ev;
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+
      return;
    }
    else if ( ! mouse_over_menu && mouse_over_supermenu )
@ -595,11 +613,20 @@ void FMenu::onMouseMove (FMouseEvent* ev)
      const FPoint& t = ev->getTermPos();
      const FPoint& p = smenu->termToWidgetPos(t);
      int b = ev->getButton();
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseMove_Event, p, t, b);
        smenu->mouse_down = true;
        setClickedWidget(smenu);
        smenu->onMouseMove(_ev);
        delete _ev;
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+
      return;
    }
    else if ( mouse_over_menubar )
@ -609,12 +636,21 @@ void FMenu::onMouseMove (FMouseEvent* ev)
      const FPoint& t = ev->getTermPos();
      const FPoint& p = menubar->termToWidgetPos(t);
      int b = ev->getButton();
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseMove_Event, p, t, b);
        setClickedWidget(menubar);
        FMenuBar* mbar = reinterpret_cast<FMenuBar*>(menubar);
        mbar->mouse_down = true;
        mbar->onMouseMove(_ev);
        delete _ev;
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+
      return;
    }
    else if ( ! hasSelectedItem() && mouse_over_menu )
@ -1307,7 +1343,17 @@ void FMenu::drawItems()
      print (' ');
      txt = (*iter)->getText();
      txt_length = uInt(txt.getLength());
+
+      try
+      {
        item_text = new wchar_t[txt_length+1]();
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        return;
+      }
+
      src  = const_cast<wchar_t*>(txt.wc_str());
      dest = const_cast<wchar_t*>(item_text);
      to_char = int(txt_length);
--- a/src/fmenubar.cpp
+++ b/src/fmenubar.cpp
@ -43,7 +43,16 @@ void FMenuBar::hide()
  if ( screenWidth < 0 )
    return;

+  try
+  {
    blank = new char[screenWidth+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(screenWidth));
  blank[screenWidth] = '\0';
  setPrintPos (1,1);
@ -408,12 +417,20 @@ void FMenuBar::onMouseMove (FMouseEvent* ev)
            const FPoint& t = ev->getTermPos();
            const FPoint& p = menu->termToWidgetPos(t);
            int b = ev->getButton();
+
+            try
+            {
              _ev = new FMouseEvent (fc::MouseMove_Event, p, t, b);
              menu->mouse_down = true;
              setClickedWidget(menu);
              menu->onMouseMove(_ev);
              delete _ev;
            }
+            catch (const std::bad_alloc& ex)
+            {
+              std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+            }
+          }
        }
      }

@ -799,7 +816,17 @@ void FMenuBar::drawItems()

    txt = (*iter)->getText();
    txt_length = uInt(txt.getLength());
+
+    try
+    {
      item_text = new wchar_t[txt_length+1]();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return;
+    }
+
    src  = const_cast<wchar_t*>(txt.wc_str());
    dest = const_cast<wchar_t*>(item_text);

--- a/src/fmenuitem.cpp
+++ b/src/fmenuitem.cpp
@ -333,10 +333,18 @@ void FMenuItem::onMouseDoubleClick (FMouseEvent* ev)
    if ( smenu )
    {
      const FPoint& p2 = smenu->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDoubleClick_Event, p2, t, b);
        smenu->onMouseDoubleClick(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }

  if ( isMenuBar(super_menu) )
@ -346,10 +354,18 @@ void FMenuItem::onMouseDoubleClick (FMouseEvent* ev)
    if ( mbar )
    {
      const FPoint& p2 = mbar->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDoubleClick_Event, p2, t, b);
        mbar->onMouseDoubleClick(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }

  if ( isWindowsMenu(super_menu) )
@ -359,10 +375,18 @@ void FMenuItem::onMouseDoubleClick (FMouseEvent* ev)
    if ( dgl )
    {
      const FPoint& p2 = dgl->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDoubleClick_Event, p2, t, b);
        dgl->onMouseDoubleClick(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }
 }

@ -382,10 +406,18 @@ void FMenuItem::onMouseDown (FMouseEvent* ev)
    if ( smenu )
    {
      const FPoint& p2 = smenu->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDown_Event, p2, t, b);
        smenu->onMouseDown(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }

  if ( isMenuBar(super_menu) )
@ -395,10 +427,18 @@ void FMenuItem::onMouseDown (FMouseEvent* ev)
    if ( mbar )
    {
      const FPoint& p2 = mbar->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDown_Event, p2, t, b);
        mbar->onMouseDown(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }

  if ( isWindowsMenu(super_menu) )
@ -408,10 +448,18 @@ void FMenuItem::onMouseDown (FMouseEvent* ev)
    if ( dgl )
    {
      const FPoint& p2 = dgl->termToWidgetPos(t);
+
+      try
+      {
        FMouseEvent* _ev = new FMouseEvent (fc::MouseDown_Event, p2, t, b);
        dgl->onMouseDown(_ev);
        delete _ev;
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      }
+    }
  }
 }

@ -734,11 +782,20 @@ void FMenuItem::createDialogList (FMenu* winmenu)

      if ( win )
      {
+        FMenuItem* win_item;
        int n = int(std::distance(begin, iter));
        // get the dialog title
        const FString& name = win->getText();
+
+        try
+        {
          // create a new dialog list item
-        FMenuItem* win_item = new FMenuItem (name, winmenu);
+          win_item = new FMenuItem (name, winmenu);
+        }
+        catch (const std::bad_alloc& ex)
+        {
+          std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        }

        if ( n < 9 )
          win_item->addAccelerator (fc::Fmkey_1 + n); // Meta + 1..9
--- a/src/fmessagebox.cpp
+++ b/src/fmessagebox.cpp
@ -170,9 +170,20 @@ int FMessageBox::info ( FWidget* parent
                      , int button2 )
 {
  int reply;
-  FMessageBox* mbox = new FMessageBox ( caption, message
+  FMessageBox* mbox;
+
+  try
+  {
+    mbox = new FMessageBox ( caption, message
                           , button0, button1, button2
                           , parent );
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return FDialog::Reject;
+  }
+
  reply = mbox->exec();
  delete mbox;
  return reply;
@ -187,10 +198,21 @@ int FMessageBox::info ( FWidget* parent
                      , int button2 )
 {
  int reply;
-  FMessageBox* mbox = new FMessageBox ( caption
+  FMessageBox* mbox;
+
+  try
+  {
+    mbox = new FMessageBox ( caption
                           , FString().setNumber(num)
                           , button0, button1, button2
                           , parent );
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return FDialog::Reject;
+  }
+
  reply = mbox->exec();
  delete mbox;
  return reply;
@ -205,9 +227,20 @@ int FMessageBox::error ( FWidget* parent
 {
  int reply;
  const FString& caption = "Error message";
-  FMessageBox* mbox = new FMessageBox ( caption, message
+  FMessageBox* mbox;
+
+  try
+  {
+    mbox = new FMessageBox ( caption, message
                           , button0, button1, button2
                           , parent );
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return FDialog::Reject;
+  }
+
  mbox->beep();
  mbox->setHeadline("Warning:");
  mbox->setCenterText();
@ -278,6 +311,8 @@ void FMessageBox::init (int button0, int button1, int button2)
  button_digit[1] = button1;
  button_digit[2] = button2;

+  try
+  {
    button[0] = new FButton (this);
    button[0]->setText(button_text[button0]);
    button[0]->setPos(3, getHeight()-4, false);
@ -302,6 +337,12 @@ void FMessageBox::init (int button0, int button1, int button2)
      button[2]->setWidth(0, false);
      button[2]->setHeight(1, false);
    }
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  resizeButtons();
  adjustButtons();
--- a/src/fobject.cpp
+++ b/src/fobject.cpp
@ -31,11 +31,31 @@ FObject::FObject (FObject* parent)
    timer_modify_lock = false;

    if ( ! timer_list )
+    {
+      try
+      {
        timer_list = new TimerList();
+      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        return;
+      }
+    }

    if ( ! fc::empty_string )
+    {
+      try
+      {
        fc::empty_string = new FString("");
      }
+      catch (const std::bad_alloc& ex)
+      {
+        std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+        return;
+      }
+    }
+  }
  else
    has_parent = true;
 }
@ -176,7 +196,17 @@ int FObject::addTimer (int interval)
  timer_modify_lock = true;

  if ( ! timer_list )
+  {
+    try
+    {
      timer_list = new TimerList();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return -1;
+    }
+  }

  // find an unused timer id
  if ( ! timer_list->empty() )
--- a/src/fprogressbar.cpp
+++ b/src/fprogressbar.cpp
@ -102,7 +102,16 @@ void FProgressbar::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

--- a/src/fscrollview.cpp
+++ b/src/fscrollview.cpp
@ -762,6 +762,8 @@ void FScrollView::init (FWidget* parent)
  setForegroundColor (wc.dialog_fg);
  setBackgroundColor (wc.dialog_bg);

+  try
+  {
    vbar = new FScrollbar(fc::vertical, this);
    vbar->setMinimum(0);
    vbar->setValue(0);
@ -771,6 +773,12 @@ void FScrollView::init (FWidget* parent)
    hbar->setMinimum(0);
    hbar->setValue(0);
    hbar->hide();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  vbar->addCallback
  (
--- a/src/fstatusbar.cpp
+++ b/src/fstatusbar.cpp
@ -184,7 +184,16 @@ void FStatusBar::hide()
  if ( screenWidth < 0 )
    return;

+  try
+  {
    blank = new char[screenWidth+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(screenWidth));
  blank[screenWidth] = '\0';
  setPrintPos (1, 1);
--- a/src/fstring.cpp
+++ b/src/fstring.cpp
@ -527,8 +527,17 @@ FString& FString::sprintf (const char* format, ...)
  va_end (args);

  if ( len >= int(sizeof(buf)) )
+  {
+    try
    {
      buffer = new char[len+1]();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << bad_alloc_str << ex.what() << std::endl;
+      return (*this);
+    }
+
    va_start (args, format);
    vsnprintf (buffer, uLong(len+1), format, args);
    va_end (args);
@ -2216,9 +2225,17 @@ inline void FString::initLength (uInt len)

  length  = len;
  bufsize = FWDBUFFER + len + 1;
+
+  try
+  {
    string = new wchar_t[bufsize]();
    std::wmemset (string, L'\0', bufsize);
  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << bad_alloc_str << ex.what() << std::endl;
+  }
+}

 //----------------------------------------------------------------------
 inline void FString::_assign (const wchar_t* s)
--- a/src/fterm.cpp
+++ b/src/fterm.cpp
@ -900,13 +900,24 @@ const FString* FTerm::getXTermFont()
    {
      if ( std::scanf("\033]50;%[^\n]s", temp) == 1 )
      {
+        FString* xtermfont;
        std::size_t n = std::strlen(temp);

        // BEL + '\0' = string terminator
        if ( n >= 5 && temp[n-1] == BEL[0] && temp[n] == '\0' )
          temp[n-1] = '\0';

-        return new FString(temp);
+        try
+        {
+          xtermfont = new FString(temp);
+        }
+        catch (const std::bad_alloc& ex)
+        {
+          std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+          return 0;
+        }
+
+        return xtermfont;
      }
    }
  }
@ -942,11 +953,24 @@ const FString* FTerm::getXTermTitle()
      // Esc + \ = OSC string terminator
      if ( n >= 2 && temp[n-2] == ESC[0] && temp[n-1] == '\\' )
      {
+        FString* xtermtitle;
+
        if ( n < 4 )
          return 0;

        temp[n-2] = '\0';
-        return new FString(temp);
+
+        try
+        {
+          xtermtitle = new FString(temp);
+        }
+        catch (const std::bad_alloc& ex)
+        {
+          std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+          return 0;
+        }
+
+        return xtermtitle;
      }
    }
  }
@ -2180,7 +2204,15 @@ int FTerm::getScreenFont()
  font.height = 32;
  font.charcount = 512;
  // initialize with 0
+  try
+  {
    font.data = new uChar[data_size]();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return -1;
+  }

  // font operation
  ret = ioctl (fd_tty, KDFONTOP, &font);
@ -2619,9 +2651,17 @@ char* FTerm::parseAnswerbackMsg (char*& current_termtype)
  char* new_termtype = current_termtype;

  // send ENQ and read the answerback message
+  try
+  {
    answer_back = new FString(getAnswerbackMsg());
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return 0;
+  }

-  if ( answer_back && *answer_back == FString("PuTTY") )
+  if ( *answer_back == FString("PuTTY") )
  {
    putty_terminal = true;

@ -2662,9 +2702,9 @@ char* FTerm::parseSecDA (char*& current_termtype)
    // secondary device attributes (SEC_DA) <- decTerminalID string
    sec_da = new FString(getSecDA());
  }
-
-  catch (const std::bad_alloc&)
+  catch (const std::bad_alloc& ex)
  {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
      return new_termtype;
  }

@ -3580,13 +3620,21 @@ void FTerm::init()
  term_initialized = true;
  init_term_object = this;
  fd_tty = -1;
+
+  try
+  {
    opti_move      = new FOptiMove();
    opti_attr      = new FOptiAttr();
    term           = new FRect(0,0,0,0);
    mouse          = new FPoint(0,0);
-
    vt100_alt_char = new std::map<uChar,uChar>;
    encoding_set   = new std::map<std::string,fc::encoding>;
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    std::abort();
+  }

  // Define the encoding set
  (*encoding_set)["UTF8"]  = fc::UTF8;
--- a/src/ftermbuffer.cpp
+++ b/src/ftermbuffer.cpp
@ -51,8 +51,17 @@ int FTermBuffer::writef (const char* format, ...)
  va_end (args);

  if ( len >= int(sizeof(buf)) )
+  {
+    try
    {
      buffer = new char[len+1]();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return -1;
+    }
+
    va_start (args, format);
    vsnprintf (buffer, uLong(len+1), format, args);
    va_end (args);
--- a/src/ftextview.cpp
+++ b/src/ftextview.cpp
@ -150,7 +150,16 @@ void FTextView::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

@ -276,7 +285,16 @@ void FTextView::clear()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';

@ -419,10 +437,18 @@ void FTextView::onMouseDown (FMouseEvent* ev)
    const FPoint& tp = ev->getTermPos();
    const FPoint& p = parent->termToWidgetPos(tp);
    parent->setFocus();
+
+    try
+    {
      FMouseEvent* _ev = new FMouseEvent (fc::MouseDown_Event, p, tp, b);
      FApplication::sendEvent (parent, _ev);
      delete _ev;
    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    }
+  }
 }

 //----------------------------------------------------------------------
@ -441,10 +467,18 @@ void FTextView::onMouseUp (FMouseEvent* ev)
    const FPoint& tp = ev->getTermPos();
    const FPoint& p = parent->termToWidgetPos(tp);
    parent->setFocus();
+
+    try
+    {
      FMouseEvent* _ev = new FMouseEvent (fc::MouseUp_Event, p, tp, b);
      FApplication::sendEvent (parent, _ev);
      delete _ev;
    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    }
+  }

  if ( vbar->isVisible() )
    vbar->redraw();
@ -469,10 +503,18 @@ void FTextView::onMouseMove (FMouseEvent* ev)
    const FPoint& tp = ev->getTermPos();
    const FPoint& p = parent->termToWidgetPos(tp);
    parent->setFocus();
+
+    try
+    {
      FMouseEvent* _ev = new FMouseEvent (fc::MouseMove_Event, p, tp, b);
      FApplication::sendEvent (parent, _ev);
      delete _ev;
    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    }
+  }
 }

 //----------------------------------------------------------------------
@ -604,6 +646,8 @@ void FTextView::init()
  setForegroundColor (wc.dialog_fg);
  setBackgroundColor (wc.dialog_bg);

+  try
+  {
    vbar = new FScrollbar(fc::vertical, this);
    vbar->setMinimum(0);
    vbar->setValue(0);
@ -613,6 +657,12 @@ void FTextView::init()
    hbar->setMinimum(0);
    hbar->setValue(0);
    hbar->hide();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  vbar->addCallback
  (
--- a/src/ftogglebutton.cpp
+++ b/src/ftogglebutton.cpp
@ -217,7 +217,16 @@ void FToggleButton::hide()
  if ( size < 0 )
    return;

+  try
+  {
    blank = new char[size+1];
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  std::memset(blank, ' ', uLong(size));
  blank[size] = '\0';
  setPrintPos (1, 1);
@ -485,7 +494,16 @@ void FToggleButton::drawLabel()
  length = text.getLength();
  hotkeypos = -1;

+  try
+  {
    LabelText = new wchar_t[length+1]();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  txt = text;
  src = const_cast<wchar_t*>(txt.wc_str());
  dest = const_cast<wchar_t*>(LabelText);
--- a/src/fvterm.cpp
+++ b/src/fvterm.cpp
@ -316,8 +316,16 @@ int FVTerm::printf (const char* format, ...)
  va_end (args);

  if ( len >= int(sizeof(buf)) )
+  {
+    try
    {
      buffer = new char[len+1]();
+    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return -1;
+    }
    va_start (args, format);
    vsnprintf (buffer, uLong(len+1), format, args);
    va_end (args);
@ -903,7 +911,16 @@ void FVTerm::createArea ( int offset_left, int offset_top
 {
  // initialize virtual window

+  try
+  {
    area = new term_area;
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
  area->widget = static_cast<FWidget*>(this);
  resizeArea (offset_left, offset_top, width, height, rsw, bsh, area);
 }
@ -966,16 +983,32 @@ void FVTerm::resizeArea ( int offset_left, int offset_top
    if ( area->text != 0 )
      delete[] area->text;

+    try
+    {
      area->changes = new line_changes[height + bsh];
      area->text    = new char_data[area_size];
    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return;
+    }
+  }
  else if ( area->width + area->right_shadow != width + rsw )
  {
    if ( area->text != 0 )
      delete[] area->text;

+    try
+    {
      area->text = new char_data[area_size];
    }
+    catch (const std::bad_alloc& ex)
+    {
+      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+      return;
+    }
+  }
  else
    return;

@ -2221,8 +2254,17 @@ void FVTerm::init()
  init_object   = this;
  vterm         =  0;
  vdesktop      =  0;
+
+  try
+  {
    term_pos      = new FPoint(-1,-1);
    output_buffer = new std::queue<int>;
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    std::abort();
+  }

  // Preset to false
  hidden_cursor           = \
--- a/src/fwidget.cpp
+++ b/src/fwidget.cpp
@ -2276,10 +2276,19 @@ void FWidget::onClose (FCloseEvent* ev)
 //----------------------------------------------------------------------
 void FWidget::init()
 {
+  try
+  {
+    // Initialize widget lists
    window_list        = new widgetList();
    dialog_list        = new widgetList();
    always_on_top_list = new widgetList();
    close_widget       = new widgetList();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }

  char* cursor_off_str = disableCursor();

@ -2290,7 +2299,7 @@ void FWidget::init()

  visible_cursor = ! hideable;

-  // determine width and height of the terminal
+  // Determine width and height of the terminal
  detectTermSize();
  wsize.setRect(1, 1, getColumnNumber(), getLineNumber());
  adjust_wsize = wsize;
@ -2309,8 +2318,15 @@ void FWidget::init()
  background_color = wc.term_bg;
  init_desktop = false;

+  try
+  {
    accelerator_list = new Accelerators();
  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+  }
+}

 //----------------------------------------------------------------------
 void FWidget::finish()