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Clicking on the column header in FListView now changes the sort order

This commit is contained in:
Markus Gans 2018-11-12 22:40:16 +01:00
parent d39e85d4c5
commit b451f0047a
3 changed files with 76 additions and 15 deletions
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3
ChangeLog
View File

@ -1,3 +1,6 @@
2018-11-12 Markus Gans <guru.mail@muenster.de>
* Clicking on the column header in FListView now changes the sort order
2018-11-10 Markus Gans <guru.mail@muenster.de>
* FListView now has a sort indicator to display the sort order

72
src/flistview.cpp
View File

@ -612,6 +612,7 @@ FListView::FListView (FWidget* parent)
, tree_view(false)
, hide_sort_indicator(false)
, clicked_expander_pos(-1, -1)
, clicked_column_pos(-1, -1)
, xoffset(0)
, nf_offset(0)
, max_line_width(1)
@ -1056,7 +1057,11 @@ void FListView::onMouseDown (FMouseEvent* ev)
, mouse_x = ev->getX()
, mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < int(getWidth())
if ( mouse_x > 1 && mouse_x < int(getWidth()) && mouse_y == 1 )
{
clicked_column_pos = ev->getPos();
}
else if ( mouse_x > 1 && mouse_x < int(getWidth())
&& mouse_y > 1 && mouse_y < int(getHeight()) )
{
int new_pos = first_visible_line.getPosition() + mouse_y - 2;
@ -1099,6 +1104,11 @@ void FListView::onMouseUp (FMouseEvent* ev)
int mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < int(getWidth())
&& mouse_y == 1 && clicked_column_pos == ev->getPos() )
{
mouseColumnClicked();
}
else if ( mouse_x > 1 && mouse_x < int(getWidth())
&& mouse_y > 1 && mouse_y < int(getHeight()) )
{
if ( tree_view )
@ -1790,7 +1800,7 @@ inline void FListView::drawSortIndicator ( std::size_t& length
}
//----------------------------------------------------------------------
inline void FListView::drawHeaderLine (std::size_t length)
inline void FListView::drawHeaderBorder (std::size_t length)
{
setColor();
const FString line (length, wchar_t(fc::BoxDrawingsHorizontal));
@ -1806,11 +1816,10 @@ void FListView::drawColumnText (headerItems::const_iterator& iter)
FString txt = " " + text;
std::size_t width = std::size_t(iter->width);
std::size_t txt_length = txt.getLength();
std::size_t length = 0;
std::size_t column_width = leading_space + width;
headerItems::const_iterator first = header.begin();
int column = std::distance(first, iter) + 1;
bool isSortIndicator = bool ( sort_column == column
bool has_sort_indicator = bool ( sort_column == column
&& ! hide_sort_indicator );
if ( isEnabled() )
@ -1818,7 +1827,7 @@ void FListView::drawColumnText (headerItems::const_iterator& iter)
else
setColor (wc.label_inactive_fg, wc.label_inactive_bg);
if ( isSortIndicator && txt_length >= column_width - 1 && txt_length > 1 )
if ( has_sort_indicator && txt_length >= column_width - 1 && txt_length > 1 )
{
txt_length = column_width - 2;
txt = txt.left(txt_length);
@ -1826,7 +1835,7 @@ void FListView::drawColumnText (headerItems::const_iterator& iter)
if ( txt_length <= column_width )
{
length = txt_length;
std::size_t length = txt_length;
headerline << txt;
if ( length < column_width )
@ -1835,11 +1844,11 @@ void FListView::drawColumnText (headerItems::const_iterator& iter)
headerline << ' '; // trailing space
}
if ( isSortIndicator )
if ( has_sort_indicator )
drawSortIndicator (length, column_width );
if ( length < column_width )
drawHeaderLine (column_width - length);
drawHeaderBorder (column_width - length);
}
else
drawColumnEllipsis (iter, text); // Print ellipsis
@ -1948,6 +1957,53 @@ void FListView::recalculateVerticalBar (int element_count)
vbar->setVisible();
}
//----------------------------------------------------------------------
void FListView::mouseColumnClicked()
{
int column_start = 2;
int column = 1;
int column_pos = clicked_column_pos.getX() + xoffset;
headerItems::const_iterator iter;
iter = header.begin();
while ( iter != header.end() )
{
static const int leading_space = 1;
bool has_sort_indicator = bool( column == sort_column );
int click_width = int(iter->name.getLength());
if ( has_sort_indicator )
click_width += 2;
if ( click_width > iter->width )
click_width = iter->width;
if ( column_pos > column_start
&& column_pos <= column_start + click_width )
{
if ( has_sort_indicator && sort_order == fc::ascending )
setColumnSort (column, fc::descending);
else
setColumnSort (column, fc::ascending);
sort();
if ( isVisible() )
{
drawColumnLabels();
drawList();
updateTerminal();
flush_out();
}
break;
}
column_start += leading_space + iter->width;
column++;
++iter;
}
}
//----------------------------------------------------------------------
void FListView::wheelUp (int pagesize)
{

6
src/include/final/flistview.h
View File

@ -55,7 +55,7 @@
#include <list>
#include <stack>
#include <vector>
#include "final/fmessagebox.h"
#include "final/fscrollbar.h"
#include "final/fstring.h"
#include "final/ftermbuffer.h"
@ -359,13 +359,14 @@ class FListView : public FWidget
FString getLinePrefix (const FListViewItem*, std::size_t);
void drawSortIndicator (std::size_t&, std::size_t);
void drawColumnText (headerItems::const_iterator&);
void drawHeaderLine (std::size_t);
void drawHeaderBorder (std::size_t);
void drawColumnEllipsis ( headerItems::const_iterator&
, const FString& );
void updateDrawing (bool, bool);
int determineLineWidth (FListViewItem* item);
void recalculateHorizontalBar (int);
void recalculateVerticalBar (int);
void mouseColumnClicked();
void wheelUp (int);
void wheelDown (int);
bool dragScrollUp (int);
@ -415,6 +416,7 @@ class FListView : public FWidget
bool tree_view;
bool hide_sort_indicator;
FPoint clicked_expander_pos;
FPoint clicked_column_pos;
int xoffset;
int nf_offset;
int max_line_width;