/////////////////////////////////////////////////////////////////////////////
// Name:        helpfrm.h
// Purpose:     wxHtmlHelpFrame
// Notes:       Based on htmlhelp.cpp, implementing a monolithic
//              HTML Help controller class,  by Vaclav Slavik
// Author:      Harm van der Heijden and Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) Harm van der Heijden and Vaclav Slavik
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_HELPFRM_H_
#define _WX_HELPFRM_H_

#ifdef __GNUG__
#pragma interface
#endif

#include "wx/defs.h"

#if wxUSE_HTML

#include "wx/html/helpdata.h"
#include "wx/window.h"
#include "wx/frame.h"
#include "wx/config.h"
#include "wx/splitter.h"
#include "wx/notebook.h"
#include "wx/listbox.h"
#include "wx/choice.h"
#include "wx/combobox.h"
#include "wx/checkbox.h"
#include "wx/stattext.h"
#include "wx/html/htmlwin.h"
#include "wx/html/htmprint.h"


// style flags for the Help Frame
#define wxHF_TOOLBAR      0x0001
#define wxHF_CONTENTS     0x0002
#define wxHF_INDEX        0x0004
#define wxHF_SEARCH       0x0008
#define wxHF_BOOKMARKS    0x0010
#define wxHF_OPENFILES    0x0020
#define wxHF_PRINT        0x0040
#define wxHF_FLATTOOLBAR  0x0080
#define wxHF_DEFAULTSTYLE (wxHF_TOOLBAR | wxHF_CONTENTS | wxHF_INDEX | \
                           wxHF_SEARCH | wxHF_BOOKMARKS | wxHF_PRINT)


// Command IDs :
enum
{
    wxID_HTML_PANEL = wxID_HIGHEST + 1,
    wxID_HTML_BACK,
    wxID_HTML_FORWARD,
    wxID_HTML_UPNODE,
    wxID_HTML_UP,
    wxID_HTML_DOWN,
    wxID_HTML_PRINT,
    wxID_HTML_OPENFILE,
    wxID_HTML_OPTIONS,
    wxID_HTML_BOOKMARKSLIST,
    wxID_HTML_BOOKMARKSADD,
    wxID_HTML_BOOKMARKSREMOVE,
    wxID_HTML_TREECTRL,
    wxID_HTML_INDEXPAGE,
    wxID_HTML_INDEXLIST,
    wxID_HTML_INDEXTEXT,
    wxID_HTML_INDEXBUTTON,
    wxID_HTML_INDEXBUTTONALL,
    wxID_HTML_NOTEBOOK,
    wxID_HTML_SEARCHPAGE,
    wxID_HTML_SEARCHTEXT,
    wxID_HTML_SEARCHLIST,
    wxID_HTML_SEARCHBUTTON,
    wxID_HTML_SEARCHCHOICE,
    wxID_HTML_COUNTINFO,
    wxID_HTML_HELPFRAME // the id of wxHtmlHelpController's helpframe
}
;


typedef struct
{
    int x, y, w, h;
    long sashpos;
    bool navig_on;
}
wxHtmlHelpFrameCfg;


class WXDLLEXPORT wxHelpControllerBase;

class WXDLLEXPORT wxHtmlHelpFrame : public wxFrame
{
        DECLARE_DYNAMIC_CLASS(wxHtmlHelpFrame)

    public:
        wxHtmlHelpFrame(wxHtmlHelpData* data = NULL) { Init(data); }
        wxHtmlHelpFrame(wxWindow* parent, wxWindowID wxWindowID,
                        const wxString& title = wxEmptyString,
                        int style = wxHF_DEFAULTSTYLE, wxHtmlHelpData* data = NULL);
        bool Create(wxWindow* parent, wxWindowID id, const wxString& title = wxEmptyString,
                    int style = wxHF_DEFAULTSTYLE);
        ~wxHtmlHelpFrame();

        wxHtmlHelpData* GetData() { return m_Data; }
        wxHelpControllerBase* GetController() const { return m_helpController; }
        void SetController(wxHelpControllerBase* controller) { m_helpController = controller; }

        void SetTitleFormat(const wxString& format);
        // Sets format of title of the frame. Must contain exactly one "%s"
        // (for title of displayed HTML page)

        bool Display(const wxString& x);
        // Displays page x. If not found it will offect the user a choice of
        // searching books.
        // Looking for the page runs in these steps:
        // 1. try to locate file named x (if x is for example "doc/howto.htm")
        // 2. try to open starting page of book x
        // 3. try to find x in contents (if x is for example "How To ...")
        // 4. try to find x in index (if x is for example "How To ...")
        bool Display(const int id);
        // Alternative version that works with numeric ID.
        // (uses extension to MS format, <param name="ID" value=id>, see docs)

        bool DisplayContents();
        // Displays help window and focuses contents.

        bool DisplayIndex();
        // Displays help window and focuses index.

        bool KeywordSearch(const wxString& keyword);
        // Searches for keyword. Returns TRUE and display page if found, return
        // FALSE otherwise
        // Syntax of keyword is Altavista-like:
        // * words are separated by spaces
        //   (but "\"hello world\"" is only one world "hello world")
        // * word may be pretended by + or -
        //   (+ : page must contain the word ; - : page can't contain the word)
        // * if there is no + or - before the word, + is default

        void UseConfig(wxConfigBase *config, const wxString& rootpath = wxEmptyString)
            {
                m_Config = config;
                m_ConfigRoot = rootpath;
                ReadCustomization(config, rootpath);
            }

        void ReadCustomization(wxConfigBase *cfg, const wxString& path = wxEmptyString);
        // saves custom settings into cfg config. it will use the path 'path'
        // if given, otherwise it will save info into currently selected path.
        // saved values : things set by SetFonts, SetBorders.
        void WriteCustomization(wxConfigBase *cfg, const wxString& path = wxEmptyString);
        // ...
        
        void NotifyPageChanged();
        // call this to let wxHtmlHelpFrame know page changed

    protected:
        void Init(wxHtmlHelpData* data = NULL);

        void RefreshLists();
        // Refreshes Contents and Index tabs

        void CreateContents();
        // Adds items to m_Contents tree control

        void CreateIndex();
        // Adds items to m_IndexList

        void CreateSearch();
        // Add books to search choice panel

        virtual void AddToolbarButtons(wxToolBar *toolBar, int style);
        // Add custom buttons to toolbar

        virtual void OptionsDialog();
        // Displays options dialog (fonts etc.)

        void OnToolbar(wxCommandEvent& event);
        void OnContentsSel(wxTreeEvent& event);
        void OnIndexSel(wxCommandEvent& event);
        void OnIndexFind(wxCommandEvent& event);
        void OnIndexAll(wxCommandEvent& event);
        void OnSearchSel(wxCommandEvent& event);
        void OnSearch(wxCommandEvent& event);
        void OnBookmarksSel(wxCommandEvent& event);
        void OnCloseWindow(wxCloseEvent& event);

        // Images:
        enum {
            IMG_Book = 0,
            IMG_Folder,
            IMG_Page,
            IMG_RootFolder
        };

    protected:
        wxHtmlHelpData* m_Data;
        bool m_DataCreated;  // m_Data created by frame, or supplied?
        wxString m_TitleFormat;  // title of the help frame
        // below are various pointers to GUI components
        wxHtmlWindow *m_HtmlWin;
        wxSplitterWindow *m_Splitter;
        wxNotebook *m_NavigPan;
        wxTreeCtrl *m_ContentsBox;
        wxTextCtrl *m_IndexText;
        wxButton *m_IndexButton;
        wxButton *m_IndexButtonAll;
        wxListBox *m_IndexList;
        wxTextCtrl *m_SearchText;
        wxButton *m_SearchButton;
        wxListBox *m_SearchList;
        wxChoice *m_SearchChoice;
        wxStaticText *m_IndexCountInfo;
        wxCheckBox *m_SearchCaseSensitive;
        wxCheckBox *m_SearchWholeWords;

        wxComboBox *m_Bookmarks;
        wxArrayString m_BookmarksNames, m_BookmarksPages;

        wxHtmlHelpFrameCfg m_Cfg;

        wxConfigBase *m_Config;
        wxString m_ConfigRoot;

        // pagenumbers of controls in notebook (usually 0,1,2)
        int m_ContentsPage;
        int m_IndexPage;
        int m_SearchPage;
        
        // lists of available fonts (used in options dialog)
        wxArrayString *m_NormalFonts, *m_FixedFonts;
        int m_FontSize; // 0,1,2 = small,medium,big
        wxString m_NormalFace, m_FixedFace;
        
        bool m_UpdateContents;

#if wxUSE_PRINTING_ARCHITECTURE
        wxHtmlEasyPrinting *m_Printer;
#endif
        wxHashTable *m_PagesHash;
        wxHelpControllerBase* m_helpController;

        DECLARE_EVENT_TABLE()
};

#endif // wxUSE_HTML

#endif