Further segfault bug fixes in FListView

This commit is contained in:
Markus Gans 2019-05-27 09:55:29 +02:00
parent 63366b7ef9
commit c93c0b6e33
2 changed files with 34 additions and 10 deletions

View File

@ -2,6 +2,9 @@
* Use the Singleton design pattern to get a single object instance
via FTerm
2019-05-26 Marek Habersack <grendel@twistedcode.net>
* Fix a segfault when processing input to empty FListView
2019-05-17 Markus Gans <guru.mail@muenster.de>
* Move system calls to the new class FSystem

View File

@ -995,7 +995,7 @@ void FListView::onMouseDown (FMouseEvent* ev)
}
else if ( mouse_y > 1 && mouse_y < int(getHeight()) ) // List
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return;
int indent = 0;
@ -1060,7 +1060,7 @@ void FListView::onMouseUp (FMouseEvent* ev)
}
else if ( mouse_y > 1 && mouse_y < int(getHeight()) ) // List
{
if (itemlist.empty ())
if ( itemlist.empty() )
return;
int indent = 0;
@ -1170,7 +1170,7 @@ void FListView::onMouseDoubleClick (FMouseEvent* ev)
if ( first_visible_line.getPosition() + mouse_y - 1 > int(getCount()) )
return;
if ( itemlist.empty () )
if ( itemlist.empty() )
return;
auto item = getCurrentItem();
@ -2035,7 +2035,7 @@ void FListView::mouseHeaderClicked()
//----------------------------------------------------------------------
void FListView::wheelUp (int pagesize)
{
if ( current_iter.getPosition() == 0 )
if ( itemlist.empty() || current_iter.getPosition() == 0 )
return;
if ( first_visible_line.getPosition() >= pagesize )
@ -2059,6 +2059,9 @@ void FListView::wheelUp (int pagesize)
//----------------------------------------------------------------------
void FListView::wheelDown (int pagesize)
{
if ( itemlist.empty() )
return;
int element_count = int(getCount());
if ( current_iter.getPosition() + 1 == element_count )
@ -2181,6 +2184,9 @@ FObject::FObjectIterator FListView::appendItem (FListViewItem* item)
//----------------------------------------------------------------------
void FListView::processClick()
{
if ( itemlist.empty() )
return;
emitCallback("clicked");
}
@ -2193,7 +2199,7 @@ void FListView::processChanged()
//----------------------------------------------------------------------
inline void FListView::keySpace()
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return;
auto item = getCurrentItem();
@ -2205,7 +2211,7 @@ inline void FListView::keySpace()
//----------------------------------------------------------------------
inline void FListView::keyLeft (int& first_line_position_before)
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return;
int position_before = current_iter.getPosition();
@ -2262,7 +2268,7 @@ inline void FListView::keyLeft (int& first_line_position_before)
//----------------------------------------------------------------------
inline void FListView::keyRight (int& first_line_position_before)
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return;
int xoffset_end = int(max_line_width) - int(getClientWidth());
@ -2290,6 +2296,9 @@ inline void FListView::keyRight (int& first_line_position_before)
//----------------------------------------------------------------------
inline void FListView::keyHome()
{
if ( itemlist.empty() )
return;
current_iter -= current_iter.getPosition();
int difference = first_visible_line.getPosition();
first_visible_line -= difference;
@ -2299,6 +2308,9 @@ inline void FListView::keyHome()
//----------------------------------------------------------------------
inline void FListView::keyEnd()
{
if ( itemlist.empty() )
return;
int element_count = int(getCount());
current_iter += element_count - current_iter.getPosition() - 1;
int difference = element_count - last_visible_line.getPosition() - 1;
@ -2309,7 +2321,7 @@ inline void FListView::keyEnd()
//----------------------------------------------------------------------
inline bool FListView::keyPlus()
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return false;
auto item = getCurrentItem();
@ -2327,7 +2339,7 @@ inline bool FListView::keyPlus()
//----------------------------------------------------------------------
inline bool FListView::keyMinus()
{
if ( itemlist.empty () )
if ( itemlist.empty() )
return false;
auto item = getCurrentItem();
@ -2352,6 +2364,9 @@ void FListView::setRelativePosition (int ry)
//----------------------------------------------------------------------
void FListView::stepForward()
{
if ( itemlist.empty() )
return;
if ( current_iter == last_visible_line )
{
++last_visible_line;
@ -2371,6 +2386,9 @@ void FListView::stepForward()
//----------------------------------------------------------------------
void FListView::stepBackward()
{
if ( itemlist.empty() )
return;
if ( current_iter == first_visible_line
&& current_iter != itemlist.begin() )
{
@ -2385,6 +2403,9 @@ void FListView::stepBackward()
//----------------------------------------------------------------------
void FListView::stepForward (int distance)
{
if ( itemlist.empty() )
return;
int element_count = int(getCount());
if ( current_iter.getPosition() + 1 == element_count )
@ -2418,7 +2439,7 @@ void FListView::stepForward (int distance)
//----------------------------------------------------------------------
void FListView::stepBackward (int distance)
{
if ( current_iter.getPosition() == 0 )
if ( itemlist.empty() || current_iter.getPosition() == 0 )
return;
if ( current_iter.getPosition() - distance >= 0 )