check for wxInputStream::Read errors

[wxWidgets.git] / src / generic / htmllbox.cpp

diff --git a/src/generic/htmllbox.cpp b/src/generic/htmllbox.cpp
index e0b3fd08f1236487dd06acf9e880ab56d73cdb54..fd023f93b85a4b577692213cec1ebbeb69fea3d4 100644 (file)
--- a/src/generic/htmllbox.cpp
+++ b/src/generic/htmllbox.cpp
@@ -46,6 +46,9 @@ FORCE_WXHTML_MODULES()
 // small border always added to the cells:
 static const wxCoord CELL_BORDER = 2;
 
 // small border always added to the cells:
 static const wxCoord CELL_BORDER = 2;
 

+const char wxHtmlListBoxNameStr[] = "htmlListBox";
+const char wxSimpleHtmlListBoxNameStr[] = "simpleHtmlListBox";
+

 // ============================================================================
 // private classes
 // ============================================================================
 // ============================================================================
 // private classes
 // ============================================================================


@@ -162,12 +165,27 @@ public:
 
     virtual wxColour GetSelectedTextColour(const wxColour& colFg)
     {
 
     virtual wxColour GetSelectedTextColour(const wxColour& colFg)
     {

-        return m_hlbox.GetSelectedTextColour(colFg);
+        // by default wxHtmlListBox doesn't implement GetSelectedTextColour()
+        // and returns wxNullColour from it, so use the default HTML colour for
+        // selection
+        wxColour col = m_hlbox.GetSelectedTextColour(colFg);
+        if ( !col.IsOk() )
+        {
+            col = wxDefaultHtmlRenderingStyle::GetSelectedTextColour(colFg);
+        }
+
+        return col;

     }
 
     virtual wxColour GetSelectedTextBgColour(const wxColour& colBg)
     {
     }
 
     virtual wxColour GetSelectedTextBgColour(const wxColour& colBg)
     {

-        return m_hlbox.GetSelectedTextBgColour(colBg);
+        wxColour col = m_hlbox.GetSelectedTextBgColour(colBg);
+        if ( !col.IsOk() )
+        {
+            col = wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour(colBg);
+        }
+
+        return col;

     }
 
 private:
     }
 
 private:


@@ -251,10 +269,10 @@ wxHtmlListBox::~wxHtmlListBox()
 // wxHtmlListBox appearance
 // ----------------------------------------------------------------------------
 
 // wxHtmlListBox appearance
 // ----------------------------------------------------------------------------
 

-wxColour wxHtmlListBox::GetSelectedTextColour(const wxColour& colFg) const
+wxColour
+wxHtmlListBox::GetSelectedTextColour(const wxColour& WXUNUSED(colFg)) const

 {
 {

-    return m_htmlRendStyle->
-                wxDefaultHtmlRenderingStyle::GetSelectedTextColour(colFg);
+    return wxNullColour;

 }
 
 wxColour
 }
 
 wxColour


@@ -290,7 +308,10 @@ void wxHtmlListBox::CacheItem(size_t n) const
             self->m_htmlParser = new wxHtmlWinParser(self);
             m_htmlParser->SetDC(new wxClientDC(self));
             m_htmlParser->SetFS(&self->m_filesystem);
             self->m_htmlParser = new wxHtmlWinParser(self);
             m_htmlParser->SetDC(new wxClientDC(self));
             m_htmlParser->SetFS(&self->m_filesystem);

-
+#if !wxUSE_UNICODE
+            if (GetFont().Ok())
+                m_htmlParser->SetInputEncoding(GetFont().GetEncoding());
+#endif

             // use system's default GUI font by default:
             m_htmlParser->SetStandardFonts();
         }
             // use system's default GUI font by default:
             m_htmlParser->SetStandardFonts();
         }


@@ -301,7 +322,7 @@ void wxHtmlListBox::CacheItem(size_t n) const
 
         // set the cell's ID to item's index so that CellCoordsToPhysical()
         // can quickly find the item:
 
         // set the cell's ID to item's index so that CellCoordsToPhysical()
         // can quickly find the item:

-        cell->SetId(wxString::Format(_T("%u"), n));
+        cell->SetId(wxString::Format(_T("%lu"), (unsigned long)n));

 
         cell->Layout(GetClientSize().x - 2*GetMargins().x);
 
 
         cell->Layout(GetClientSize().x - 2*GetMargins().x);
 


@@ -317,18 +338,18 @@ void wxHtmlListBox::OnSize(wxSizeEvent& event)
     event.Skip();
 }
 
     event.Skip();
 }
 

-void wxHtmlListBox::RefreshLine(size_t line)
+void wxHtmlListBox::RefreshRow(size_t line)

 {
     m_cache->InvalidateRange(line, line);
 
 {
     m_cache->InvalidateRange(line, line);
 

-    wxVListBox::RefreshLine(line);
+    wxVListBox::RefreshRow(line);

 }
 
 }
 

-void wxHtmlListBox::RefreshLines(size_t from, size_t to)
+void wxHtmlListBox::RefreshRows(size_t from, size_t to)

 {
     m_cache->InvalidateRange(from, to);
 
 {
     m_cache->InvalidateRange(from, to);
 

-    wxVListBox::RefreshLines(from, to);
+    wxVListBox::RefreshRows(from, to);

 }
 
 void wxHtmlListBox::RefreshAll()
 }
 
 void wxHtmlListBox::RefreshAll()


@@ -350,6 +371,27 @@ void wxHtmlListBox::SetItemCount(size_t count)
 // wxHtmlListBox implementation of wxVListBox pure virtuals
 // ----------------------------------------------------------------------------
 
 // wxHtmlListBox implementation of wxVListBox pure virtuals
 // ----------------------------------------------------------------------------
 

+void
+wxHtmlListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
+{
+    if ( IsSelected(n) )
+    {
+        if ( DoDrawSolidBackground
+             (
+                GetSelectedTextBgColour(GetBackgroundColour()),
+                dc,
+                rect,
+                n
+             ) )
+        {
+            return;
+        }
+        //else: no custom selection background colour, use base class version
+    }
+
+    wxVListBox::OnDrawBackground(dc, rect, n);
+}
+

 void wxHtmlListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 {
     CacheItem(n);
 void wxHtmlListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 {
     CacheItem(n);


@@ -359,16 +401,21 @@ void wxHtmlListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 
     wxHtmlRenderingInfo htmlRendInfo;
 
 
     wxHtmlRenderingInfo htmlRendInfo;
 

-    // draw the selected cell in selected state
-    if ( IsSelected(n) )
+    // draw the selected cell in selected state ourselves if we're using custom
+    // colours (to test for this, check the callbacks by passing them any dummy
+    // (but valid, to avoid asserts) colour):
+    if ( IsSelected(n) &&
+            (GetSelectedTextColour(*wxBLACK).IsOk() ||
+             GetSelectedTextBgColour(*wxWHITE).IsOk()) )

     {
         wxHtmlSelection htmlSel;
         htmlSel.Set(wxPoint(0,0), cell, wxPoint(INT_MAX, INT_MAX), cell);
         htmlRendInfo.SetSelection(&htmlSel);
     {
         wxHtmlSelection htmlSel;
         htmlSel.Set(wxPoint(0,0), cell, wxPoint(INT_MAX, INT_MAX), cell);
         htmlRendInfo.SetSelection(&htmlSel);

-        if ( m_htmlRendStyle )
-            htmlRendInfo.SetStyle(m_htmlRendStyle);
+        htmlRendInfo.SetStyle(m_htmlRendStyle);

         htmlRendInfo.GetState().SetSelectionState(wxHTML_SEL_IN);
     }
         htmlRendInfo.GetState().SetSelectionState(wxHTML_SEL_IN);
     }

+    //else: normal item or selected item with default colours, its background
+    //      was already taken care of in the base class

 
     // note that we can't stop drawing exactly at the window boundary as then
     // even the visible cells part could be not drawn, so always draw the
 
     // note that we can't stop drawing exactly at the window boundary as then
     // even the visible cells part could be not drawn, so always draw the


@@ -402,6 +449,13 @@ void wxHtmlListBox::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
     OnLinkClicked(GetItemForCell(link.GetHtmlCell()), link);
 }
 
     OnLinkClicked(GetItemForCell(link.GetHtmlCell()), link);
 }
 

+void wxHtmlListBox::OnLinkClicked(size_t WXUNUSED(n),
+                                  const wxHtmlLinkInfo& link)
+{
+    wxHtmlLinkEvent event(GetId(), link);
+    GetEventHandler()->ProcessEvent(event);
+}
+

 wxHtmlOpeningStatus
 wxHtmlListBox::OnHTMLOpeningURL(wxHtmlURLType WXUNUSED(type),
                                 const wxString& WXUNUSED(url),
 wxHtmlOpeningStatus
 wxHtmlListBox::OnHTMLOpeningURL(wxHtmlURLType WXUNUSED(type),
                                 const wxString& WXUNUSED(url),


@@ -456,13 +510,13 @@ wxPoint wxHtmlListBox::GetRootCellCoords(size_t n) const
 {
     wxPoint pos(CELL_BORDER, CELL_BORDER);
     pos += GetMargins();
 {
     wxPoint pos(CELL_BORDER, CELL_BORDER);
     pos += GetMargins();

-    pos.y += GetLinesHeight(GetFirstVisibleLine(), n);
+    pos.y += GetRowsHeight(GetVisibleBegin(), n);

     return pos;
 }
 
 bool wxHtmlListBox::PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const
 {
     return pos;
 }
 
 bool wxHtmlListBox::PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const
 {

-    int n = HitTest(pos);
+    int n = VirtualHitTest(pos.y);

     if ( n == wxNOT_FOUND )
         return false;
 
     if ( n == wxNOT_FOUND )
         return false;
 


@@ -541,4 +595,128 @@ void wxHtmlListBox::OnLeftDown(wxMouseEvent& event)
     }
 }
 
     }
 }
 

+
+// ----------------------------------------------------------------------------
+// wxSimpleHtmlListBox
+// ----------------------------------------------------------------------------
+
+bool wxSimpleHtmlListBox::Create(wxWindow *parent, wxWindowID id,
+                                 const wxPoint& pos,
+                                 const wxSize& size,
+                                 int n, const wxString choices[],
+                                 long style,
+                                 const wxValidator& validator,
+                                 const wxString& name)
+{
+    if (!wxHtmlListBox::Create(parent, id, pos, size, style, name))
+        return false;
+
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif
+
+    Append(n, choices);
+
+    return true;
+}
+
+bool wxSimpleHtmlListBox::Create(wxWindow *parent, wxWindowID id,
+                                 const wxPoint& pos,
+                                 const wxSize& size,
+                                 const wxArrayString& choices,
+                                 long style,
+                                 const wxValidator& validator,
+                                 const wxString& name)
+{
+    if (!wxHtmlListBox::Create(parent, id, pos, size, style, name))
+        return false;
+
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif
+
+    Append(choices);
+
+    return true;
+}
+
+wxSimpleHtmlListBox::~wxSimpleHtmlListBox()
+{
+    wxItemContainer::Clear();
+}
+
+void wxSimpleHtmlListBox::DoClear()
+{
+    wxASSERT(m_items.GetCount() == m_HTMLclientData.GetCount());
+
+    m_items.Clear();
+    m_HTMLclientData.Clear();
+
+    UpdateCount();
+}
+
+void wxSimpleHtmlListBox::Clear()
+{
+    DoClear();
+}
+
+void wxSimpleHtmlListBox::DoDeleteOneItem(unsigned int n)
+{
+    m_items.RemoveAt(n);
+
+    m_HTMLclientData.RemoveAt(n);
+
+    UpdateCount();
+}
+
+int wxSimpleHtmlListBox::DoInsertItems(const wxArrayStringsAdapter& items,
+                                       unsigned int pos,
+                                       void **clientData,
+                                       wxClientDataType type)
+{
+    const unsigned int count = items.GetCount();
+
+    m_items.Insert(wxEmptyString, pos, count);
+    m_HTMLclientData.Insert(NULL, pos, count);
+
+    for ( unsigned int i = 0; i < count; ++i, ++pos )
+    {
+        m_items[pos] = items[i];
+        AssignNewItemClientData(pos, clientData, i, type);
+    }
+
+    UpdateCount();
+
+    return pos;
+}
+
+void wxSimpleHtmlListBox::SetString(unsigned int n, const wxString& s)
+{
+    wxCHECK_RET( IsValid(n),
+                 wxT("invalid index in wxSimpleHtmlListBox::SetString") );
+
+    m_items[n]=s;
+    RefreshRow(n);
+}
+
+wxString wxSimpleHtmlListBox::GetString(unsigned int n) const
+{
+    wxCHECK_MSG( IsValid(n), wxEmptyString,
+                 wxT("invalid index in wxSimpleHtmlListBox::GetString") );
+
+    return m_items[n];
+}
+
+void wxSimpleHtmlListBox::UpdateCount()
+{
+    wxASSERT(m_items.GetCount() == m_HTMLclientData.GetCount());
+    wxHtmlListBox::SetItemCount(m_items.GetCount());
+
+    // very small optimization: if you need to add lot of items to
+    // a wxSimpleHtmlListBox be sure to use the
+    // wxSimpleHtmlListBox::Append(const wxArrayString&) method instead!
+    if (!this->IsFrozen())
+        RefreshAll();
+}
+

 #endif // wxUSE_HTML
 #endif // wxUSE_HTML