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Fix in FListViewIterator

This commit is contained in:
Markus Gans 2020-02-05 08:57:13 +01:00
parent b05513a8f8
commit b810b51e65
9 changed files with 86 additions and 45 deletions
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1
ChangeLog
View File

@ -1,4 +1,5 @@
2020-02-04 Markus Gans <guru.mail@muenster.de>
* Fix in FListViewIterator
* Add screenshorts to the first steps document
2020-02-02 Markus Gans <guru.mail@muenster.de>

86
src/flistview.cpp
View File

@ -560,8 +560,13 @@ void FListViewIterator::nextElement (iterator& iter)
}
else
{
++iter;
position++;
bool forward{};
do
{
forward = false; // Reset forward
++iter;
if ( ! iter_path.empty() )
{
@ -571,10 +576,12 @@ void FListViewIterator::nextElement (iterator& iter)
{
iter = parent_iter;
iter_path.pop();
++iter;
forward = true;
}
}
}
while ( forward );
}
}
//----------------------------------------------------------------------
@ -1142,7 +1149,7 @@ void FListView::onMouseUp (FMouseEvent* ev)
else
item->expand();
adjustSize();
adjustScrollbars (getCount());
if ( isShown() )
draw();
@ -1225,11 +1232,12 @@ void FListView::onMouseDoubleClick (FMouseEvent* ev)
const int mouse_x = ev->getX();
const int mouse_y = ev->getY();
const std::size_t element_count = getCount();
if ( mouse_x > 1 && mouse_x < int(getWidth())
&& mouse_y > 1 && mouse_y < int(getHeight()) )
{
if ( first_visible_line.getPosition() + mouse_y - 1 > int(getCount()) )
if ( first_visible_line.getPosition() + mouse_y - 1 > int(element_count) )
return;
if ( itemlist.empty() )
@ -1244,7 +1252,7 @@ void FListView::onMouseDoubleClick (FMouseEvent* ev)
else
item->expand();
adjustSize();
adjustScrollbars (element_count);
if ( isShown() )
draw();
@ -1356,7 +1364,7 @@ void FListView::onFocusOut (FFocusEvent*)
// protected methods of FListView
//----------------------------------------------------------------------
void FListView::adjustViewport (int element_count)
void FListView::adjustViewport (const int element_count)
{
const int height = int(getClientHeight());
@ -1396,15 +1404,10 @@ void FListView::adjustViewport (int element_count)
}
//----------------------------------------------------------------------
void FListView::adjustSize()
void FListView::adjustScrollbars (const std::size_t element_count)
{
FWidget::adjustSize();
const std::size_t element_count = getCount();
const std::size_t width = getClientWidth();
const std::size_t height = getClientHeight();
adjustViewport (int(element_count));
const int vmax = ( element_count > height )
? int(element_count - height)
: 0;
@ -1437,6 +1440,15 @@ void FListView::adjustSize()
}
}
//----------------------------------------------------------------------
void FListView::adjustSize()
{
FWidget::adjustSize();
const std::size_t element_count = getCount();
adjustViewport (int(element_count));
adjustScrollbars (element_count);
}
// private methods of FListView
//----------------------------------------------------------------------
@ -1512,8 +1524,8 @@ void FListView::sort (Compare cmp)
//----------------------------------------------------------------------
std::size_t FListView::getAlignOffset ( const fc::text_alignment align
, std::size_t column_width
, std::size_t width )
, const std::size_t column_width
, const std::size_t width )
{
switch ( align )
{
@ -1536,6 +1548,22 @@ std::size_t FListView::getAlignOffset ( const fc::text_alignment align
return 0;
}
//----------------------------------------------------------------------
FObject::iterator FListView::getListEnd (FListViewItem* item)
{
auto parent = item->getParent();
if ( ! parent )
return null_iter;
if ( this == parent )
return itemlist.end();
else if ( parent->isInstanceOf("FListViewItem") )
return static_cast<FListViewItem*>(parent)->end();
else
return null_iter;
}
//----------------------------------------------------------------------
void FListView::draw()
{
@ -1643,14 +1671,17 @@ void FListView::drawList()
uInt y{0};
const uInt page_height = uInt(getHeight()) - 2;
const auto& itemlist_end = itemlist.end();
auto path_end = itemlist_end;
auto iter = first_visible_line;
while ( iter != itemlist.end() && y < page_height )
while ( iter != path_end && iter != itemlist_end && y < page_height )
{
const bool is_current_line( iter == current_iter );
const auto& item = static_cast<FListViewItem*>(*iter);
const int tree_offset = ( tree_view ) ? int(item->getDepth() << 1) + 1 : 0;
const int checkbox_offset = ( item->isCheckable() ) ? 1 : 0;
path_end = getListEnd(item);
print() << FPoint(2, 2 + int(y));
// Draw one FListViewItem
@ -1757,10 +1788,17 @@ void FListView::drawListLine ( const FListViewItem* item
std::size_t char_width{0};
for (std::size_t i{0}; i < len; i++)
{
try
{
char_width += getColumnWidth(line[i]);
print() << line[i];
}
catch (const std::out_of_range&)
{
return;
}
}
for (std::size_t i = char_width; i < width; i++)
print (' ');
@ -2185,11 +2223,12 @@ void FListView::recalculateHorizontalBar (std::size_t len)
//----------------------------------------------------------------------
void FListView::recalculateVerticalBar (std::size_t element_count)
{
const int vmax = ( element_count + 2 > getHeight() )
? int(element_count - getHeight() + 2)
const std::size_t height = getClientHeight();
const int vmax = ( element_count > height )
? int(element_count - height)
: 0;
vbar->setMaximum (vmax);
vbar->setPageSize (int(element_count), int(getHeight()) - 2);
vbar->setPageSize (int(element_count), int(height));
vbar->calculateSliderValues();
if ( isShown() )
@ -2445,9 +2484,8 @@ inline void FListView::collapseAndScrollLeft()
{
// Collapse element
item->collapse();
adjustSize();
const std::size_t element_count = getCount();
recalculateVerticalBar (element_count);
adjustScrollbars (getCount());
vbar->calculateSliderValues();
// Force vertical scrollbar redraw
first_line_position_before = -1;
}
@ -2498,7 +2536,7 @@ inline void FListView::expandAndScrollRight()
{
// Expand element
item->expand();
adjustSize();
adjustScrollbars (getCount());
// Force vertical scrollbar redraw
first_line_position_before = -1;
}
@ -2549,7 +2587,7 @@ inline bool FListView::expandSubtree()
if ( tree_view && item->isExpandable() && ! item->isExpand() )
{
item->expand();
adjustSize();
adjustScrollbars (getCount());
return true;
}
@ -2567,7 +2605,7 @@ inline bool FListView::collapseSubtree()
if ( tree_view && item->isExpandable() && item->isExpand() )
{
item->collapse();
adjustSize();
adjustScrollbars (getCount());
return true;
}

8
src/include/final/flistview.h
View File

@ -353,7 +353,8 @@ class FListView : public FWidget
protected:
// Methods
void adjustViewport (int);
void adjustViewport (const int);
void adjustScrollbars (const std::size_t);
void adjustSize() override;
private:
@ -383,8 +384,9 @@ class FListView : public FWidget
template <typename Compare>
void sort (Compare);
std::size_t getAlignOffset ( const fc::text_alignment
, std::size_t
, std::size_t );
, const std::size_t
, const std::size_t );
iterator getListEnd (FListViewItem*);
void draw() override;
void drawBorder() override;
void drawScrollbars();