File Try-to-resolve-missing-members-in-tmwxHtmlHelpFrame.patch of Package TreeMaker

From: Aaron Puchert <aaronpuchert@alice-dsl.net>
Date: Sun, 9 Apr 2023 01:03:22 +0200
Subject: [PATCH 11/20] Try to resolve missing members in tmwxHtmlHelpFrame

Both m_Printer and m_HtmlWin are nowhere to be found. The printer seems
to come in via the setter, so we can probably just put it in our class.
Presumably it was previously in some base.

As for m_HtmlWin I hope I got the right one. A method GetOpenedPage
exists for exactly one class in wxWidgets: wxHtmlWindow. That seems to
be obtained by these calls. I can't test it yet, let's see.
---
 Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.cpp | 13 ++++++++-----
 Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.h   |  3 +++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.cpp b/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.cpp
index 4c96b5f..6feddf8 100644
--- a/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.cpp
+++ b/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.cpp
@@ -15,7 +15,8 @@ Copyright:    
 Constructor
 *****/
 tmwxHtmlHelpFrame::tmwxHtmlHelpFrame(wxHtmlHelpData* data) : 
-  wxHtmlHelpFrame(data)
+  wxHtmlHelpFrame(data),
+  m_Printer(NULL)
 {
 }
 
@@ -58,8 +59,9 @@ Perform the File->Print... command
 void tmwxHtmlHelpFrame::OnPrint(wxCommandEvent& event)
 {
   TMASSERT(m_Printer);
-  TMASSERT(!!m_HtmlWin->GetOpenedPage());
-  m_Printer->PrintFile(m_HtmlWin->GetOpenedPage());
+  const wxHtmlWindow* htmlWin = GetHelpWindow()->GetHtmlWindow();
+  TMASSERT(!!htmlWin->GetOpenedPage());
+  m_Printer->PrintFile(htmlWin->GetOpenedPage());
 }
 
 
@@ -78,8 +80,9 @@ Perform the File->Print Preview... command
 void tmwxHtmlHelpFrame::OnPrintPreview(wxCommandEvent& event)
 {
   TMASSERT(m_Printer);
-  TMASSERT(!!m_HtmlWin->GetOpenedPage());
-  m_Printer->PreviewFile(m_HtmlWin->GetOpenedPage());
+  const wxHtmlWindow* htmlWin = GetHelpWindow()->GetHtmlWindow();
+  TMASSERT(!!htmlWin->GetOpenedPage());
+  m_Printer->PreviewFile(htmlWin->GetOpenedPage());
 }
 
 
diff --git a/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.h b/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.h
index a6b42ce..6814d7d 100644
--- a/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.h
+++ b/Source/tmwxGUI/tmwxHtmlHelp/tmwxHtmlHelpFrame.h
@@ -34,6 +34,9 @@ public:
   void OnPrintPreviewUpdateUI(wxUpdateUIEvent& event);
   void OnPrintPreview(wxCommandEvent& event);
   DECLARE_EVENT_TABLE()
+
+private:
+  wxHtmlEasyPrinting* m_Printer;
 };