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path: root/support/dktools/DkWxHtbApp.cpt
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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2014-xxxx
license		=	bsd



%%	header


/**	Application class, derived from wxApp, one instance per program.
*/
class DkWxHtbApp : public wxApp
{
  protected:

    /**	Helper object.
    */
    DkWxAppHelper	*pHelper;

    /**	Controller fr online help.
    */
    wxHtmlHelpController	*helpController;

  protected:

    /**	Show error message if there is not sufficient memory available.
    */
    void
    ShowMemoryErrorMessage(void);

  public:

    /**	Application initialization.
    	@return	true on success, false on error.
    */
    virtual
    bool
    OnInit();

    /**	Application shutdown.
    	@return	0 on success, any other value indicates an error.
    */
    virtual
    int
    OnExit();
};



/**	Declaration as the wxApp object.
*/
DECLARE_APP(DkWxHtbApp)



%%	module

#include "wxdkhtb.h"


$!trace-include



/**	Localized wxChar texts.
*/
static wxChar const *	wxdkhtb_texts[] = {
$!string-table	macro=wxT
#
#   0:	Menu "File"
#
File
#
#   1:	Menu item "File/Exit"
#
Exit
#
#   2:	Tool tip text for menu item "File/Exit"
#
Exit the application
#
#   3:	Menu "Help"
#
Help
#
#   4:	Menu item "Help/About"
#
About
#
#   5:	Tooltip text for menu item "Help/About"
#
Show version information
#
#   6:	Menu item "Help/Contents"
#
Contents
#
#   7:	Tooltip text for menu item "Help/Contents"
#
Open table of contents
#
#   8:	Initial status text
#
Ready
#
#   9:	Copyright notice.
#
Copyright (c) 
#
#  10:	Dialog box title "About ..."
#
About 
#
#  11:	This program uses the following libraries
#
This program uses the following libraries:
#
#  12:	See
#
See:
#
#  13:	Text for dummy label, can be reused if lDummy removed.
#
HTB viewer main window
#
#  14:	No help controller created
#
No help controller was created!
#
#  15:	Error
#
Error
#
#  16
#
No *.htb file name was specified on the command line!
#
#  17
#
The specified file does not exist!
#
#  18
#
Failed to create help controller, resources/memory problem!
$!end
};



/**	Non-localized wxChar texts.
*/
static wxChar const *	wxdkhtb_nl_wx[] = {
$!string-table	macro=wxT
#
#   0:	Program name.
#
wxdkhtb
#
#   1:	Program version.
#
1.0.0
#
#   2:	Copyright owner name.
#
Dirk Krause
#
#   3:	Software vendor name.
#
DirkKrause
#
#   4:	Resource name of Windows icon
#
aaaaa
#
#   5:	Windows chm help file name
#
wxdkhtb.chm
#
#   6:	non-Windows htb help file name
#
wxdkhtb.htb
#
#   7:	Space
#
 
#
#   8:	Newline
#
\n
#
#   9 10 11 12 13 14 15:	List of libraries used.
#
DK tools, wxWidgets, libpng, libjpeg, libtiff, zlib.
http://dktools.sourceforge.net
http://www.wxwidgets.org
http://www.libpng.org/pub/png/libpng.html
http://www.ijg.org
http://www.remotesensing.org/libtiff
http://www.zlib.net
#
#
#
Error
Not enough memory (RAM)!
$!end
};



/**	Non-localized dkChar texts.
*/
static dkChar const *	wxdkhtb_nl_dk[] = {
$!string-table	macro=dkT
#
#   0:	Program group name.
#
dktools
#
#   1:	String table name.
#
wxdkhtb.str
$!end
};



/**	Implementation of the wxApp functionality.
*/
IMPLEMENT_APP(DkWxHtbApp)


bool
DkWxHtbApp::OnInit()
{
  DkWxHtbFrame		*frame		= NULL;
  wxChar const * const	*localizedTexts	= NULL;
  wxPNGHandler		*phPng		= NULL;
  wxXPMHandler		*phXpm		= NULL;
  wxICOHandler		*phIco		= NULL;
  wxZipFSHandler	*phZipFs	= NULL;
  bool			 back		= false;
  int			 iStatus	= 0;
  /*	0	No file name
  	1	File does not exist
	2	Not enough memory to create controller
	3	Everything ok
  */

  /* Initialize members. */
  pHelper = NULL;
  helpController = NULL;

  /* Set up helper object. */
  pHelper = new DkWxAppHelper(
    argv[0],
    wxdkhtb_nl_wx[3],
    wxdkhtb_nl_dk[0]
  );
  if(!(pHelper)) { ShowMemoryErrorMessage(); goto finished; }
  if(!(pHelper->checkSetup())) { goto finished; }

  /* Add image and file system handlers for online help. */
  phPng = new wxPNGHandler();
  if (NULL != phPng) {
    wxImage::AddHandler(phPng);
  } else {
    ShowMemoryErrorMessage();
    goto finished;
  }
  phXpm = new wxXPMHandler();
  if (NULL != phXpm) {
    wxImage::AddHandler(phXpm);
  } else {
    ShowMemoryErrorMessage();
    goto finished;
  }
  phIco = new wxICOHandler();
  if (NULL != phIco) {
    wxImage::AddHandler(phIco);
  } else {
    ShowMemoryErrorMessage();
    goto finished;
  }
  phZipFs = new wxZipFSHandler();
  if (NULL != phZipFs) {
    wxFileSystem::AddHandler(phZipFs);
  } else {
    ShowMemoryErrorMessage();
    goto finished;
  }

  localizedTexts = pHelper->getStringTable(wxdkhtb_texts, wxdkhtb_nl_dk[1]);
  if(!(localizedTexts)) { localizedTexts = wxdkhtb_texts; }

  /* Set up online help controller. */
  if (1 < argc) {
    wxString	fullPath;
    wxFileName	fn(argv[1]);
    iStatus = 1;
    fn.Normalize(
      wxPATH_NORM_LONG | wxPATH_NORM_DOTS
      | wxPATH_NORM_TILDE | wxPATH_NORM_ABSOLUTE
    );
    if (fn.FileExists()) {
      iStatus = 2;
      fullPath = fn.GetFullPath();
      helpController = new wxHtmlHelpController(
        wxHF_DEFAULT_STYLE | wxHF_MERGE_BOOKS
      );
      if (helpController) {
        helpController->Initialize(fullPath);
	iStatus = 3;
      }
    }
  }
  /* Create and show frame. */
  frame = new DkWxHtbFrame(
    DkWxHtbFrame_MainWindow,
    pHelper,
    helpController,
    argc,
    argv,
    localizedTexts,
    wxdkhtb_nl_wx,
    wxdkhtb_nl_dk,
    iStatus
  );
  if(!(frame)) { ShowMemoryErrorMessage(); goto finished; }
  frame->Show();
  frame->restorePosition();
  back = true;

  /* Release resources if initialization failed. */
  finished:
  if(!(back)) {
    if(helpController) {
      delete(helpController);
      helpController = NULL;
    }
    if(pHelper) {
      delete(pHelper);
      pHelper = NULL;
    }
  }
  return back;
}



int
DkWxHtbApp::OnExit()
{
  int			 back = 0;

  /* Release resources. */
  if(helpController) {
    delete(helpController);
    helpController = NULL;
  }
  if(pHelper) {
    delete(pHelper);
    pHelper = NULL;
  }
  return back;
}



void
DkWxHtbApp::ShowMemoryErrorMessage(void)
{
  const wxChar	*s_title	= NULL;
  const wxChar	*s_text		= NULL;

  if (NULL != pHelper) {
    s_title = pHelper->getBasicString(3);
    s_text  = pHelper->getBasicString(9);
  }
  if (NULL == s_title) {
    s_title = wxdkhtb_nl_wx[16];
  }
  if (NULL == s_text) {
    s_text  = wxdkhtb_nl_wx[17];
  }
  wxMessageBox(s_text, s_title, (wxOK | wxCENTRE | wxICON_ERROR));
}