static const int EXTRA_WIDTH = 3;
static const int EXTRA_HEIGHT = 4;
+// margin between the window and the items
+static const int EXTRA_BORDER_X = 2;
+static const int EXTRA_BORDER_Y = 2;
+
// offset for the header window
static const int HEADER_OFFSET_X = 1;
static const int HEADER_OFFSET_Y = 1;
+// margin between rows of icons in [small] icon view
+static const int MARGIN_BETWEEN_ROWS = 6;
+
// when autosizing the columns, add some slack
static const int AUTOSIZE_COL_MARGIN = 10;
void CalculateSize( wxDC *dc, int spacing );
// remember the position this line appears at
- void SetPosition( int x, int y, int window_width, int spacing );
+ void SetPosition( int x, int y, int spacing );
// wxListCtrl API
bool m_dirty;
wxColour *m_highlightColour;
- int m_xScroll,
- m_yScroll;
wxImageListType *m_small_image_list;
wxImageListType *m_normal_image_list;
int m_small_spacing;
// common part of all ctors
void Init();
- // intiialize m_[xy]Scroll
- void InitScrolling();
-
// get the line data for the given index
wxListLineData *GetLine(size_t n) const
{
}
}
-void wxListLineData::SetPosition( int x, int y,
- int WXUNUSED(window_width),
- int spacing )
+void wxListLineData::SetPosition( int x, int y, int spacing )
{
wxListItemDataList::compatibility_iterator node = m_items.GetFirst();
wxCHECK_RET( node, _T("no subitems at all??") );
m_freezeCount = 0;
}
-void wxListMainWindow::InitScrolling()
-{
- if ( HasFlag(wxLC_REPORT) )
- {
- m_xScroll = SCROLL_UNIT_X;
- m_yScroll = SCROLL_UNIT_Y;
- }
- else
- {
- m_xScroll = SCROLL_UNIT_Y;
- m_yScroll = 0;
- }
-}
-
wxListMainWindow::wxListMainWindow()
{
Init();
m_highlightBrush =
m_highlightUnfocusedBrush = (wxBrush *) NULL;
-
- m_xScroll =
- m_yScroll = 0;
}
wxListMainWindow::wxListMainWindow( wxWindow *parent,
wxSize sz = size;
sz.y = 25;
- InitScrolling();
- SetScrollbars( m_xScroll, m_yScroll, 0, 0, 0, 0 );
+ SetScrollbars( SCROLL_UNIT_X, SCROLL_UNIT_Y, 0, 0, 0, 0 );
SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_LISTBOX ) );
}
int client_w, client_h;
GetClientSize( &client_w, &client_h );
- int view_x = m_xScroll*GetScrollPos( wxHORIZONTAL );
- int view_y = m_yScroll*GetScrollPos( wxVERTICAL );
+ int view_x = SCROLL_UNIT_X*GetScrollPos( wxHORIZONTAL );
+ int view_y = SCROLL_UNIT_Y*GetScrollPos( wxVERTICAL );
if ( HasFlag(wxLC_REPORT) )
{
ResetVisibleLinesRange();
if (rect.y < view_y )
- Scroll( -1, rect.y/m_yScroll );
+ Scroll( -1, rect.y/SCROLL_UNIT_Y );
if (rect.y+rect.height+5 > view_y+client_h)
- Scroll( -1, (rect.y+rect.height-client_h+SCROLL_UNIT_Y)/m_yScroll );
+ Scroll( -1, (rect.y+rect.height-client_h+SCROLL_UNIT_Y)/SCROLL_UNIT_Y );
}
else // !report
{
if (rect.x-view_x < 5)
- Scroll( (rect.x-5)/m_xScroll, -1 );
+ Scroll( (rect.x-5)/SCROLL_UNIT_X, -1 );
if (rect.x+rect.width-5 > view_x+client_w)
- Scroll( (rect.x+rect.width-client_w+SCROLL_UNIT_X)/m_xScroll, -1 );
+ Scroll( (rect.x+rect.width-client_w+SCROLL_UNIT_X)/SCROLL_UNIT_X, -1 );
}
}
}
// some fudge needed to make it look prettier
- xMax += EXTRA_WIDTH;
- yMax += EXTRA_HEIGHT;
+ xMax += 2*EXTRA_BORDER_X;
+ yMax += 2*EXTRA_BORDER_Y;
// account for the scrollbars if necessary
const wxSize sizeAll = GetClientSize();
wxClientDC dc( this );
dc.SetFont( GetFont() );
+ const size_t count = GetItemCount();
+
int iconSpacing;
if ( HasFlag(wxLC_ICON) )
iconSpacing = m_normal_spacing;
if ( HasFlag(wxLC_REPORT) )
{
- // all lines have the same height
+ // all lines have the same height and we scroll one line per step
int lineHeight = GetLineHeight();
- // scroll one line per step
- m_yScroll = lineHeight;
-
- size_t lineCount = GetItemCount();
- int entireHeight = lineCount*lineHeight + LINE_SPACING;
+ int entireHeight = count*lineHeight + LINE_SPACING;
m_linesPerPage = clientHeight / lineHeight;
ResetVisibleLinesRange();
- SetScrollbars( m_xScroll, m_yScroll,
- GetHeaderWidth() / m_xScroll,
- (entireHeight + m_yScroll - 1)/m_yScroll,
+ SetScrollbars( SCROLL_UNIT_X, lineHeight,
+ GetHeaderWidth() / SCROLL_UNIT_X,
+ (entireHeight + lineHeight - 1) / lineHeight,
GetScrollPos(wxHORIZONTAL),
GetScrollPos(wxVERTICAL),
TRUE );
}
else // !report
{
- // at first we try without any scrollbar. if the items don't
- // fit into the window, we recalculate after subtracting an
- // approximated 15 pt for the horizontal scrollbar
-
- int entireWidth = 0;
-
- for (int tries = 0; tries < 2; tries++)
+ // we have 3 different layout strategies: either layout all items
+ // horizontally/vertically (wxLC_ALIGN_XXX styles explicitly given) or
+ // to arrange them in top to bottom, left to right (don't ask me why
+ // not the other way round...) order
+ if ( HasFlag(wxLC_ALIGN_LEFT | wxLC_ALIGN_TOP) )
{
- // We start with 4 for the border around all items
- entireWidth = 4;
-
- if (tries == 1)
- {
- // Now we have decided that the items do not fit into the
- // client area. Unfortunately, wxWindows sometimes thinks
- // that it does fit and therefore NO horizontal scrollbar
- // is inserted. This looks ugly, so we fudge here and make
- // the calculated width bigger than was actually has been
- // calculated. This ensures that wxScrolledWindows puts
- // a scrollbar at the bottom of its client area.
- entireWidth += SCROLL_UNIT_X;
- }
-
- // Start at 2,2 so the text does not touch the border
- int x = 2;
- int y = 2;
- int maxWidth = 0;
- m_linesPerPage = 0;
- int currentlyVisibleLines = 0;
+ int x = EXTRA_BORDER_X;
+ int y = EXTRA_BORDER_Y;
- size_t count = GetItemCount();
- for (size_t i = 0; i < count; i++)
+ for ( size_t i = 0; i < count; i++ )
{
- currentlyVisibleLines++;
wxListLineData *line = GetLine(i);
line->CalculateSize( &dc, iconSpacing );
- line->SetPosition( x, y, clientWidth, iconSpacing ); // Why clientWidth? (FIXME)
+ line->SetPosition( x, y, iconSpacing );
wxSize sizeLine = GetLineSize(i);
- if ( maxWidth < sizeLine.x )
- maxWidth = sizeLine.x;
+ if ( HasFlag(wxLC_ALIGN_TOP) )
+ {
+ y += sizeLine.y;
+ }
+ else // wxLC_ALIGN_LEFT
+ {
+ x += sizeLine.x + MARGIN_BETWEEN_ROWS;
+ }
+ }
+
+ SetScrollbars
+ (
+ SCROLL_UNIT_X,
+ SCROLL_UNIT_Y,
+ (x + SCROLL_UNIT_X) / SCROLL_UNIT_X,
+ (y + SCROLL_UNIT_Y) / SCROLL_UNIT_Y,
+ GetScrollPos( wxHORIZONTAL ),
+ GetScrollPos( wxVERTICAL ),
+ TRUE
+ );
+ }
+ else // "flowed" arrangement, the most complicated case
+ {
+ // at first we try without any scrollbars, if the items don't fit into
+ // the window, we recalculate after subtracting the space taken by the
+ // scrollbar
+
+ int entireWidth = 0,
+ entireHeight = 0;
- y += sizeLine.y;
- if (currentlyVisibleLines > m_linesPerPage)
- m_linesPerPage = currentlyVisibleLines;
+ for (int tries = 0; tries < 2; tries++)
+ {
+ entireWidth = 2*EXTRA_BORDER_X;
+ entireHeight = 2*EXTRA_BORDER_Y;
- // Assume that the size of the next one is the same... (FIXME)
- if ( y + sizeLine.y >= clientHeight )
+ if (tries == 1)
{
- currentlyVisibleLines = 0;
- y = 2;
- x += maxWidth+6;
- entireWidth += maxWidth+6;
- maxWidth = 0;
+ // Now we have decided that the items do not fit into the
+ // client area, so we need a scrollbar
+ entireWidth += SCROLL_UNIT_X;
}
- // We have reached the last item.
- if ( i == count - 1 )
- entireWidth += maxWidth;
+ int x = EXTRA_BORDER_X;
+ int y = EXTRA_BORDER_Y;
+ int maxWidthInThisRow = 0;
+
+ m_linesPerPage = 0;
+ int currentlyVisibleLines = 0;
- if ( (tries == 0) && (entireWidth+SCROLL_UNIT_X > clientWidth) )
+ for (size_t i = 0; i < count; i++)
{
- clientHeight -= 15; // We guess the scrollbar height. (FIXME)
- m_linesPerPage = 0;
- currentlyVisibleLines = 0;
- break;
- }
+ currentlyVisibleLines++;
+ wxListLineData *line = GetLine(i);
+ line->CalculateSize( &dc, iconSpacing );
+ line->SetPosition( x, y, iconSpacing );
+
+ wxSize sizeLine = GetLineSize(i);
- if ( i == count - 1 )
- tries = 1; // Everything fits, no second try required.
+ if ( maxWidthInThisRow < sizeLine.x )
+ maxWidthInThisRow = sizeLine.x;
+
+ y += sizeLine.y;
+ if (currentlyVisibleLines > m_linesPerPage)
+ m_linesPerPage = currentlyVisibleLines;
+
+ if ( y + sizeLine.y >= clientHeight )
+ {
+ currentlyVisibleLines = 0;
+ y = EXTRA_BORDER_Y;
+ maxWidthInThisRow += MARGIN_BETWEEN_ROWS;
+ x += maxWidthInThisRow;
+ entireWidth += maxWidthInThisRow;
+ maxWidthInThisRow = 0;
+ }
+
+ // We have reached the last item.
+ if ( i == count - 1 )
+ entireWidth += maxWidthInThisRow;
+
+ if ( (tries == 0) &&
+ (entireWidth + SCROLL_UNIT_X > clientWidth) )
+ {
+ clientHeight -= wxSystemSettings::
+ GetMetric(wxSYS_HSCROLL_Y);
+ m_linesPerPage = 0;
+ currentlyVisibleLines = 0;
+ break;
+ }
+
+ if ( i == count - 1 )
+ tries = 1; // Everything fits, no second try required.
+ }
}
- }
- int scroll_pos = GetScrollPos( wxHORIZONTAL );
- SetScrollbars( m_xScroll, m_yScroll, (entireWidth+SCROLL_UNIT_X) / m_xScroll, 0, scroll_pos, 0, TRUE );
+ SetScrollbars
+ (
+ SCROLL_UNIT_X,
+ SCROLL_UNIT_Y,
+ (entireWidth + SCROLL_UNIT_X) / SCROLL_UNIT_X,
+ 0,
+ GetScrollPos( wxHORIZONTAL ),
+ 0,
+ TRUE
+ );
+ }
}
if ( !noRefresh )
projects / wxWidgets.git / commitdiff
