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[wxWidgets.git] / src / html / htmlwin.cpp
diff --git a/src/html/htmlwin.cpp b/src/html/htmlwin.cpp
index 0dc11db54826a855e3533305c5cfe5f53fa3effa..fc42f4cb5ae77528d3595dee823fa3340cb2beab 100644 (file)
--- a/src/html/htmlwin.cpp
+++ b/src/html/htmlwin.cpp
@@ -7,12 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "htmlwin.h"
-#pragma implementation "htmlproc.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #include "wx/defs.h"
@@ -141,10 +135,10 @@ private:
 //-----------------------------------------------------------------------------
 
 WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
-WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
+WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
 
 WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
-WX_DEFINE_LIST(wxHtmlProcessorList);
+WX_DEFINE_LIST(wxHtmlProcessorList)
 
 //-----------------------------------------------------------------------------
 // wxHtmlWindow
@@ -180,6 +174,8 @@ void wxHtmlWindow::Init()
     m_lastDoubleClick = 0;
 #endif // wxUSE_CLIPBOARD
     m_backBuffer = NULL;
+    m_eraseBgInOnPaint = false;
+    m_tmpSelFromCell = NULL;
 }
 
 bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
@@ -239,37 +235,39 @@ void wxHtmlWindow::SetRelatedStatusBar(int bar)
 
 
 
-void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
+void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
 {
-    wxString op = m_OpenedPage;
-
     m_Parser->SetFonts(normal_face, fixed_face, sizes);
-    // fonts changed => contents invalid, so reload the page:
-    SetPage(wxT("<html><body></body></html>"));
-    if (!op.empty())
-        LoadPage(op);
+
+    // re-layout the page after changing fonts:
+    DoSetPage(*(m_Parser->GetSource()));
 }
 
 void wxHtmlWindow::SetStandardFonts(int size,
                                     const wxString& normal_face,
                                     const wxString& fixed_face)
 {
-    wxString op = m_OpenedPage;
-
     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
-    // fonts changed => contents invalid, so reload the page:
-    SetPage(wxT("<html><body></body></html>"));
-    if (!op.empty())
-        LoadPage(op);
-}
 
+    // re-layout the page after changing fonts:
+    DoSetPage(*(m_Parser->GetSource()));
+}
 
 bool wxHtmlWindow::SetPage(const wxString& source)
+{
+    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
+    return DoSetPage(source);
+}
+
+bool wxHtmlWindow::DoSetPage(const wxString& source)
 {
     wxString newsrc(source);
 
     wxDELETE(m_selection);
 
+    // we will soon delete all the cells, so clear pointers to them:
+    m_tmpSelFromCell = NULL;
+
     // pass HTML through registered processors:
     if (m_Processors || m_GlobalProcessors)
     {
@@ -308,7 +306,7 @@ bool wxHtmlWindow::SetPage(const wxString& source)
     dc->SetMapMode(wxMM_TEXT);
     SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
     SetBackgroundImage(wxNullBitmap);
-    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
+
     m_Parser->SetDC(dc);
     if (m_Cell)
     {
@@ -327,7 +325,7 @@ bool wxHtmlWindow::SetPage(const wxString& source)
 
 bool wxHtmlWindow::AppendToPage(const wxString& source)
 {
-    return SetPage(*(GetParser()->GetSource()) + source);
+    return DoSetPage(*(GetParser()->GetSource()) + source);
 }
 
 bool wxHtmlWindow::LoadPage(const wxString& location)
@@ -799,7 +797,7 @@ bool wxHtmlWindow::CopySelection(ClipboardType t)
 #if wxUSE_CLIPBOARD
     if ( m_selection )
     {
-#ifdef __UNIX__
+#if defined(__UNIX__) && !defined(__WXMAC__)
         wxTheClipboard->UsePrimarySelection(t == Primary);
 #else // !__UNIX__
         // Primary selection exists only under X11, so don't do anything under
@@ -821,6 +819,8 @@ bool wxHtmlWindow::CopySelection(ClipboardType t)
             return true;
         }
     }
+#else
+    wxUnusedVar(t);
 #endif // wxUSE_CLIPBOARD
 
     return false;
@@ -853,10 +853,11 @@ void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event)
 {
     if ( !m_bmpBg.Ok() )
     {
-        // we used to do nothing at all here but we do have to erase background
-        // now that we reuse it (instead of overwriting it) in OnPaint() below
-        event.Skip();
-
+        // don't even skip the event, if we don't have a bg bitmap we're going
+        // to overwrite background in OnPaint() below anyhow, so letting the
+        // default handling take place would only result in flicker, just set a
+        // flag to erase the background below
+        m_eraseBgInOnPaint = true;
         return;
     }
 
@@ -887,7 +888,8 @@ void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 {
     wxPaintDC dc(this);
 
-    if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return;
+    if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
+        return;
 
     int x, y;
     GetViewStart(&x, &y);
@@ -899,13 +901,23 @@ void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
         m_backBuffer = new wxBitmap(sz.x, sz.y);
     dcm.SelectObject(*m_backBuffer);
 
-    // preserve the existing background, otherwise we'd erase anything the user
-    // code had drawn in its EVT_ERASE_BACKGROUND handler when we do the Blit
-    // back below
-    dcm.Blit(0, rect.GetTop(),
-             sz.x, rect.GetBottom() - rect.GetTop() + 1,
-             &dc,
-             0, rect.GetTop());
+    if ( m_eraseBgInOnPaint )
+    {
+        dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID));
+        dcm.Clear();
+
+        m_eraseBgInOnPaint = false;
+    }
+    else // someone has already erased the background, keep it
+    {
+        // preserve the existing background, otherwise we'd erase anything the
+        // user code had drawn in its EVT_ERASE_BACKGROUND handler when we do
+        // the Blit back below
+        dcm.Blit(0, rect.GetTop(),
+                 sz.x, rect.GetBottom() - rect.GetTop() + 1,
+                 &dc,
+                 0, rect.GetTop());
+    }
 
     PrepareDC(dcm);
     dcm.SetMapMode(wxMM_TEXT);
@@ -1010,6 +1022,8 @@ void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
             CaptureMouse();
         }
     }
+#else
+    wxUnusedVar(event);
 #endif // wxUSE_CLIPBOARD
 }
 
@@ -1291,8 +1305,7 @@ void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
 
 void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
 {
-    if ( IsSelectionEnabled() &&
-         event.GetKeyCode() == 'C' && event.ControlDown() )
+    if ( IsSelectionEnabled() && event.GetKeyCode() == 'C' && event.CmdDown() )
     {
         (void) CopySelection();
     }
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