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1. GetNextChild() bug fixed in generic version

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2. GetChildrenCount(bool recursive) added to all versions, implemented
   only in the generic one so far
3. Sample slightly modified to show new function


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@996 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
1998-11-13 20:47:22 +00:00
parent 8aa04e8bf1
commit 4832f7c06c
7 changed files with 160 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

101
src/generic/treectrl.cpp
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@@ -81,8 +81,8 @@ public:
// operations
void Reset();
// get count of all children (and grand children and ...) of this item
size_t GetTotalNumberOfChildren() const;
// get count of all children (and grand children if 'recursively')
size_t GetChildrenCount(bool recursively = TRUE) const;
void Insert(wxGenericTreeItem *child, size_t index)
{ m_children.Insert(child, index); }
@@ -113,7 +113,7 @@ private:
m_selImage;
wxTreeItemData *m_data;
// @@ probably should use bitfields to save size
bool m_isCollapsed,
m_hasHilight, // same as focused
@@ -176,7 +176,7 @@ wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent,
wxGenericTreeItem::~wxGenericTreeItem()
{
delete m_data;
size_t count = m_children.Count();
for ( size_t n = 0; n < count; n++ )
delete m_children[n];
@@ -208,13 +208,16 @@ void wxGenericTreeItem::Reset()
m_parent = (wxGenericTreeItem *)NULL;
}
size_t wxGenericTreeItem::GetTotalNumberOfChildren() const
size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const
{
size_t count = m_children.Count();
if ( !recursively )
return count;
size_t total = count;
for ( size_t n = 0; n < count; n++ )
{
total += m_children[n]->GetTotalNumberOfChildren();
total += m_children[n]->GetChildrenCount();
}
return total;
@@ -237,7 +240,7 @@ void wxGenericTreeItem::GetSize( int &x, int &y )
{
size_t count = m_children.Count();
for ( size_t n = 0; n < count; n++ )
{
{
m_children[n]->GetSize( x, y );
}
}
@@ -344,7 +347,7 @@ wxTreeCtrl::~wxTreeCtrl()
size_t wxTreeCtrl::GetCount() const
{
return m_anchor == NULL ? 0u : m_anchor->GetTotalNumberOfChildren();
return m_anchor == NULL ? 0u : m_anchor->GetChildrenCount();
}
void wxTreeCtrl::SetIndent(unsigned int indent)
@@ -353,53 +356,78 @@ void wxTreeCtrl::SetIndent(unsigned int indent)
Refresh();
}
size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively)
{
wxCHECK_MSG( item.IsOk(), 0u, "invalid tree item" );
return item.m_pItem->GetChildrenCount(recursively);
}
// -----------------------------------------------------------------------------
// functions to work with tree items
// -----------------------------------------------------------------------------
wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), "", "invalid tree item" );
return item.m_pItem->GetText();
}
int wxTreeCtrl::GetItemImage(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), -1, "invalid tree item" );
return item.m_pItem->GetImage();
}
int wxTreeCtrl::GetItemSelectedImage(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), -1, "invalid tree item" );
return item.m_pItem->GetSelectedImage();
}
wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), NULL, "invalid tree item" );
return item.m_pItem->GetData();
}
void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
{
wxCHECK_RET( item.IsOk(), "invalid tree item" );
wxClientDC dc(this);
item.m_pItem->SetText(text, dc);
}
void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image)
{
wxCHECK_RET( item.IsOk(), "invalid tree item" );
item.m_pItem->SetImage(image);
}
void wxTreeCtrl::SetItemSelectedImage(const wxTreeItemId& item, int image)
{
wxCHECK_RET( item.IsOk(), "invalid tree item" );
item.m_pItem->SetSelectedImage(image);
}
void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
{
wxCHECK_RET( item.IsOk(), "invalid tree item" );
item.m_pItem->SetData(data);
}
void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
{
wxCHECK_RET( item.IsOk(), "invalid tree item" );
item.m_pItem->SetHasPlus(has);
}
@@ -416,16 +444,22 @@ bool wxTreeCtrl::IsVisible(const wxTreeItemId& WXUNUSED(item)) const
bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), FALSE, "invalid tree item" );
return !item.m_pItem->GetChildren().IsEmpty();
}
bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), FALSE, "invalid tree item" );
return item.m_pItem->IsExpanded();
}
bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), FALSE, "invalid tree item" );
return item.m_pItem->HasHilight();
}
@@ -452,7 +486,16 @@ wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& item, long& cookie) co
{
wxCHECK_MSG( item.IsOk(), NULL, "invalid tree item" );
return item.m_pItem->GetChildren().Item(cookie++);
wxArrayTreeItems& children = item.m_pItem->GetChildren();
if ( (size_t)cookie < children.Count() )
{
return item.m_pItem->GetChildren().Item(cookie++);
}
else
{
// there are no more of them
return NULL;
}
}
wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
@@ -466,7 +509,7 @@ wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
// root item doesn't have any siblings
return NULL;
}
wxArrayTreeItems& siblings = parent->GetChildren();
int index = siblings.Index(i);
wxASSERT( index != NOT_FOUND ); // I'm not a child of my parent?
@@ -486,7 +529,7 @@ wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
// root item doesn't have any siblings
return NULL;
}
wxArrayTreeItems& siblings = parent->GetChildren();
int index = siblings.Index(i);
wxASSERT( index != NOT_FOUND ); // I'm not a child of my parent?
@@ -535,7 +578,7 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
// should we give a warning here?
return AddRoot(text, image, selImage, data);
}
wxClientDC dc(this);
wxGenericTreeItem *item = new wxGenericTreeItem(parent,
text, dc,
@@ -557,7 +600,7 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
PrepareDC( dc );
wxRectangle rect;
rect.x = dc.LogicalToDeviceX( 0 );
rect.x = dc.LogicalToDeviceX( 0 );
rect.y = 0;
rect.width = 10000; // @@@ not very elegant...
rect.height = ch;
@@ -677,7 +720,7 @@ void wxTreeCtrl::Expand(const wxTreeItemId& itemId)
// cancelled by program
return;
}
item->Expand();
RefreshSubtree(item);
@@ -701,7 +744,7 @@ void wxTreeCtrl::Collapse(const wxTreeItemId& itemId)
// cancelled by program
return;
}
item->Collapse();
wxArrayTreeItems& children = item->GetChildren();
@@ -867,14 +910,14 @@ void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &
int exposed_x = dc.LogicalToDeviceX( 0 );
int exposed_y = dc.LogicalToDeviceY( item->GetY()-2 );
if (IsExposed( exposed_x, exposed_y, 10000, m_lineHeight+4 )) // 10000 = very much
{
int startX = horizX;
int endX = horizX + 10;
if (!item->HasChildren()) endX += 20;
dc.DrawLine( startX, y, endX, y );
if (item->HasPlus())
@@ -893,11 +936,11 @@ void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &
{
dc.SetTextForeground( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_HIGHLIGHTTEXT ) );
dc.SetBrush( *m_hilightBrush );
long text_w = 0;
long text_h = 0;
dc.GetTextExtent( item->GetText(), &text_w, &text_h );
int image_h = 0;
int image_w = 0;
if (item->GetImage() != -1)
@@ -905,14 +948,14 @@ void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &
m_imageListNormal->GetSize( item->GetImage(), image_w, image_h );
image_w += 4;
}
if (m_hasFocus)
dc.SetPen( *wxBLACK_PEN );
else
dc.SetPen( *wxTRANSPARENT_PEN );
dc.DrawRectangle( item->GetX()-2, item->GetY()-2, image_w+text_w+4, text_h+4 );
if (item->GetImage() != -1)
{
dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, text_h );
@@ -929,11 +972,11 @@ void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &
{
dc.SetBrush( *wxWHITE_BRUSH );
dc.SetPen( *wxTRANSPARENT_PEN );
long text_w = 0;
long text_h = 0;
dc.GetTextExtent( item->GetText(), &text_w, &text_h );
int image_h = 0;
int image_w = 0;
if (item->GetImage() != -1)
@@ -941,16 +984,16 @@ void wxTreeCtrl::PaintLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &
m_imageListNormal->GetSize( item->GetImage(), image_w, image_h );
image_w += 4;
}
dc.DrawRectangle( item->GetX()-2, item->GetY()-2, image_w+text_w+4, text_h+4 );
if (item->GetImage() != -1)
{
dc.SetClippingRegion( item->GetX(), item->GetY(), image_w-2, text_h );
m_imageListNormal->Draw( item->GetImage(), dc, item->GetX(), item->GetY()-1, wxIMAGELIST_DRAW_TRANSPARENT );
dc.DestroyClippingRegion();
}
dc.DrawText( item->GetText(), image_w+item->GetX(), item->GetY() );
dc.SetPen( *wxBLACK_PEN );
}
@@ -1096,11 +1139,11 @@ void wxTreeCtrl::RefreshSubtree(wxGenericTreeItem *item)
{
wxClientDC dc(this);
PrepareDC(dc);
int cw = 0;
int ch = 0;
GetClientSize( &cw, &ch );
wxRect rect;
rect.x = dc.LogicalToDeviceX( 0 );
rect.width = cw;