#include "wx/imaglist.h"
#include "wx/headerctrl.h"
#include "wx/dnd.h"
+#include "wx/stopwatch.h"
//-----------------------------------------------------------------------------
// classes
void wxDataViewColumn::Init(int width, wxAlignment align, int flags)
{
- m_width = width == wxCOL_WIDTH_DEFAULT ? wxDVC_DEFAULT_WIDTH : width;
+ m_width = width;
m_minWidth = 0;
m_align = align;
m_flags = flags;
m_sortAscending = true;
}
+int wxDataViewColumn::GetWidth() const
+{
+ switch ( m_width )
+ {
+ case wxCOL_WIDTH_DEFAULT:
+ return wxDVC_DEFAULT_WIDTH;
+
+ case wxCOL_WIDTH_AUTOSIZE:
+ wxCHECK_MSG( m_owner, wxDVC_DEFAULT_WIDTH, "no owner control" );
+ return m_owner->GetBestColumnWidth(m_owner->GetColumnIndex(this));
+
+ default:
+ return m_width;
+ }
+}
+
void wxDataViewColumn::UpdateDisplay()
{
if (m_owner)
wxSize wxDataViewTextRenderer::GetSize() const
{
- const wxDataViewCtrl *view = GetView();
if (!m_text.empty())
- return view->wxWindowBase::GetTextExtent( m_text );
- return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
+ return GetTextExtent(m_text);
+ else
+ return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);
}
// ---------------------------------------------------------
wxSize wxDataViewDateRenderer::GetSize() const
{
- const wxDataViewCtrl* view = GetView();
- wxString tmp = m_date.FormatDate();
- wxCoord x,y,d;
- view->GetTextExtent( tmp, &x, &y, &d );
- return wxSize(x,y+d);
+ return GetTextExtent(m_date.FormatDate());
}
void wxDataViewDateRenderer::WXOnActivate(wxDataViewModel *model,
wxSize wxDataViewIconTextRenderer::GetSize() const
{
- const wxDataViewCtrl *view = GetView();
if (!m_value.GetText().empty())
{
- int x,y;
- view->GetTextExtent( m_value.GetText(), &x, &y );
+ wxSize size = GetTextExtent(m_value.GetText());
if (m_value.GetIcon().IsOk())
- x += m_value.GetIcon().GetWidth() + 4;
- return wxSize( x, y );
+ size.x += m_value.GetIcon().GetWidth() + 4;
+ return size;
}
return wxSize(80,20);
}
if (column == expander)
width -= indent;
- wxVariant value;
wxDataViewItem item = GetItemByRow( row );
- model->GetValue( value, item, column->GetModelColumn());
- cell->SetValue( value );
-
- wxDataViewItemAttr attr;
- model->GetAttr(item, column->GetModelColumn(), attr);
- cell->SetAttr(attr);
+ cell->PrepareForItem(model, item, column->GetModelColumn());
wxRect item_rect(x, 0, width, height);
item_rect.Deflate(PADDING_RIGHTLEFT, 0);
for (unsigned int item = item_start; item < item_last; item++)
{
// get the cell value and set it into the renderer
- wxVariant value;
wxDataViewTreeNode *node = NULL;
wxDataViewItem dataitem;
dataitem = wxDataViewItem( wxUIntToPtr(item+1) );
}
- model->GetValue( value, dataitem, col->GetModelColumn());
- cell->SetValue( value );
-
- wxDataViewItemAttr attr;
- model->GetAttr(dataitem, col->GetModelColumn(), attr);
- cell->SetAttr(attr);
+ cell->PrepareForItem(model, dataitem, col->GetModelColumn());
// update cell_rect
cell_rect.y = GetLineStart( item );
bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
{
+ GetOwner()->InvalidateColBestWidths();
+
if (IsVirtualList())
{
wxDataViewVirtualListModel *list_model =
bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
const wxDataViewItem& item)
{
+ GetOwner()->InvalidateColBestWidths();
+
if (IsVirtualList())
{
wxDataViewVirtualListModel *list_model =
bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
{
+ GetOwner()->InvalidateColBestWidths();
+
SortPrepare();
g_model->Resort();
bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned int col )
{
+ GetOwner()->InvalidateColBestWidth(col);
+
// NOTE: to be valid, we cannot use e.g. INT_MAX - 1
/*#define MAX_VIRTUAL_WIDTH 100000
bool wxDataViewMainWindow::Cleared()
{
+ GetOwner()->InvalidateColBestWidths();
+
DestroyTree();
+ m_selection.Clear();
SortPrepare();
BuildTree( GetOwner()->GetModel() );
!model->HasContainerColumns(item))
continue; // skip it!
- wxVariant value;
- model->GetValue( value, item, column->GetModelColumn() );
-
wxDataViewRenderer *renderer =
const_cast<wxDataViewRenderer*>(column->GetRenderer());
- renderer->SetValue( value );
+ renderer->PrepareForItem(model, item, column->GetModelColumn());
+
height = wxMax( height, renderer->GetSize().y );
}
!model->HasContainerColumns(item))
continue; // skip it!
- wxVariant value;
- model->GetValue( value, item, column->GetModelColumn() );
-
wxDataViewRenderer *renderer =
const_cast<wxDataViewRenderer*>(column->GetRenderer());
- renderer->SetValue( value );
+ renderer->PrepareForItem(model, item, column->GetModelColumn());
+
height = wxMax( height, renderer->GetSize().y );
}
!model->HasContainerColumns(item))
continue; // skip it!
- wxVariant value;
- model->GetValue( value, item, column->GetModelColumn() );
-
wxDataViewRenderer *renderer =
const_cast<wxDataViewRenderer*>(column->GetRenderer());
- renderer->SetValue( value );
+ renderer->PrepareForItem(model, item, column->GetModelColumn());
+
height = wxMax( height, renderer->GetSize().y );
}
return;
}
+ // set the focus to ourself if any of the mouse buttons are pressed
+ if(event.ButtonDown() && !HasFocus())
+ SetFocus();
+
int x = event.GetX();
int y = event.GetY();
m_owner->CalcUnscrolledPosition( x, y, &x, &y );
}
else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
{
- SetFocus();
-
m_lineBeforeLastClicked = m_lineLastClicked;
m_lineLastClicked = current;
if ( wxDataViewCustomRenderer *custom = cell->WXGetAsCustom() )
{
// notify cell about click
- wxVariant value;
- model->GetValue( value, item, col->GetModelColumn() );
- custom->SetValue( value );
+ custom->PrepareForItem(model, item, col->GetModelColumn());
+
wxRect cell_rect( xpos, GetLineStart( current ),
col->GetWidth(), GetLineHeight( current ) );
GetModel()->RemoveNotifier( m_notifier );
m_cols.Clear();
+ m_colsBestWidths.clear();
}
void wxDataViewCtrl::Init()
return false;
m_cols.Append( col );
+ m_colsBestWidths.push_back(0);
OnColumnsCountChanged();
return true;
}
return false;
m_cols.Insert( col );
+ m_colsBestWidths.insert(m_colsBestWidths.begin(), 0);
OnColumnsCountChanged();
return true;
}
return false;
m_cols.Insert( pos, col );
+ m_colsBestWidths.insert(m_colsBestWidths.begin() + pos, 0);
OnColumnsCountChanged();
return true;
}
return wxNOT_FOUND;
}
+unsigned int wxDataViewCtrl::GetBestColumnWidth(int idx) const
+{
+ if ( m_colsBestWidths[idx] != 0 )
+ return m_colsBestWidths[idx];
+
+ const int count = m_clientArea->GetRowCount();
+ wxDataViewColumn *column = GetColumn(idx);
+ wxDataViewRenderer *renderer =
+ const_cast<wxDataViewRenderer*>(column->GetRenderer());
+
+ class MaxWidthCalculator
+ {
+ public:
+ MaxWidthCalculator(wxDataViewMainWindow *clientArea,
+ wxDataViewRenderer *renderer,
+ const wxDataViewModel *model,
+ unsigned column)
+ : m_width(0),
+ m_clientArea(clientArea),
+ m_renderer(renderer),
+ m_model(model),
+ m_column(column)
+ {
+ }
+
+ void UpdateWithWidth(int width)
+ {
+ m_width = wxMax(m_width, width);
+ }
+
+ void UpdateWithRow(int row)
+ {
+ wxDataViewItem item = m_clientArea->GetItemByRow(row);
+ m_renderer->PrepareForItem(m_model, item, m_column);
+ m_width = wxMax(m_width, m_renderer->GetSize().x);
+ }
+
+ int GetMaxWidth() const { return m_width; }
+
+ private:
+ int m_width;
+ wxDataViewMainWindow *m_clientArea;
+ wxDataViewRenderer *m_renderer;
+ const wxDataViewModel *m_model;
+ unsigned m_column;
+ };
+
+ MaxWidthCalculator calculator(m_clientArea, renderer,
+ GetModel(), column->GetModelColumn());
+
+ if ( m_headerArea )
+ {
+ int header_width = m_headerArea->GetTextExtent(column->GetTitle()).x;
+ // Labels on native MSW header are indented on both sides
+ header_width +=
+ wxRendererNative::Get().GetHeaderButtonMargin(m_headerArea);
+ calculator.UpdateWithWidth(header_width);
+ }
+
+ // The code below deserves some explanation. For very large controls, we
+ // simply can't afford to calculate sizes for all items, it takes too
+ // long. So the best we can do is to check the first and the last N/2
+ // items in the control for some sufficiently large N and calculate best
+ // sizes from that. That can result in the calculated best width being too
+ // small for some outliers, but it's better to get slightly imperfect
+ // result than to wait several seconds after every update. To avoid highly
+ // visible miscalculations, we also include all currently visible items
+ // no matter what. Finally, the value of N is determined dynamically by
+ // measuring how much time we spent on the determining item widths so far.
+
+#if wxUSE_STOPWATCH
+ int top_part_end = count;
+ static const long CALC_TIMEOUT = 20/*ms*/;
+ // don't call wxStopWatch::Time() too often
+ static const unsigned CALC_CHECK_FREQ = 100;
+ wxStopWatch timer;
+#else
+ // use some hard-coded limit, that's the best we can do without timer
+ int top_part_end = wxMin(500, count);
+#endif // wxUSE_STOPWATCH/!wxUSE_STOPWATCH
+
+ int row = 0;
+
+ for ( row = 0; row < top_part_end; row++ )
+ {
+#if wxUSE_STOPWATCH
+ if ( row % CALC_CHECK_FREQ == CALC_CHECK_FREQ-1 &&
+ timer.Time() > CALC_TIMEOUT )
+ break;
+#endif // wxUSE_STOPWATCH
+ calculator.UpdateWithRow(row);
+ }
+
+ // row is the first unmeasured item now; that's out value of N/2
+
+ if ( row < count )
+ {
+ top_part_end = row;
+
+ // add bottom N/2 items now:
+ const int bottom_part_start = wxMax(row, count - row);
+ for ( row = bottom_part_start; row < count; row++ )
+ {
+ calculator.UpdateWithRow(row);
+ }
+
+ // finally, include currently visible items in the calculation:
+ const wxPoint origin = CalcUnscrolledPosition(wxPoint(0, 0));
+ int first_visible = m_clientArea->GetLineAt(origin.y);
+ int last_visible = m_clientArea->GetLineAt(origin.y + GetClientSize().y);
+
+ first_visible = wxMax(first_visible, top_part_end);
+ last_visible = wxMin(bottom_part_start, last_visible);
+
+ for ( row = first_visible; row < last_visible; row++ )
+ {
+ calculator.UpdateWithRow(row);
+ }
+
+ wxLogTrace("dataview",
+ "determined best size from %d top, %d bottom plus %d more visible items out of %d total",
+ top_part_end,
+ count - bottom_part_start,
+ wxMax(0, last_visible - first_visible),
+ count);
+ }
+
+ int max_width = calculator.GetMaxWidth();
+ if ( max_width > 0 )
+ max_width += 2 * PADDING_RIGHTLEFT;
+
+ const_cast<wxDataViewCtrl*>(this)->m_colsBestWidths[idx] = max_width;
+ return max_width;
+
+ #undef MEASURE_ITEM
+}
+
void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
unsigned int WXUNUSED(new_pos))
{
if (!ret)
return false;
+ m_colsBestWidths.erase(m_colsBestWidths.begin() + GetColumnIndex(column));
m_cols.Erase(ret);
OnColumnsCountChanged();
bool wxDataViewCtrl::ClearColumns()
{
m_cols.Clear();
+ m_colsBestWidths.clear();
OnColumnsCountChanged();
return true;
}
+void wxDataViewCtrl::InvalidateColBestWidth(int idx)
+{
+ m_colsBestWidths[idx] = 0;
+
+ if ( m_headerArea )
+ m_headerArea->UpdateColumn(idx);
+}
+
+void wxDataViewCtrl::InvalidateColBestWidths()
+{
+ m_colsBestWidths.clear();
+ m_colsBestWidths.resize(m_cols.size());
+
+ if ( m_headerArea )
+ {
+ // this updates visual appearance of columns 0 and up, not just 0
+ m_headerArea->UpdateColumn(0);
+ }
+}
+
int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
{
#if 1
void wxDataViewCtrl::Expand( const wxDataViewItem & item )
{
+ ExpandAncestors( item );
+
int row = m_clientArea->GetRowByItem( item );
if (row != -1)
m_clientArea->Expand(row);
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