src/html/htmlwin.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        htmlwin.cpp
// Purpose:     wxHtmlWindow class for parsing & displaying HTML (implementation)
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////


#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#include "wx/defs.h"
#if wxUSE_HTML

#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
#include "wx/wx.h"
#endif

#include "wx/html/htmlwin.h"
#include "wx/html/forcelnk.h"
#include "wx/log.h"


//-----------------------------------------------------------------------------
// wxHtmlWindow
//-----------------------------------------------------------------------------


#include "wx/arrimpl.cpp"
WX_DEFINE_OBJARRAY(HtmlHistoryArray)


wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
                long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, wxVSCROLL | wxHSCROLL, name)
{
    m_tmpMouseMoved = FALSE;
    m_tmpLastLink = NULL;
    m_tmpCanDrawLocks = 0;
    m_FS = new wxFileSystem();
    m_RelatedStatusBar = -1;
    m_RelatedFrame = NULL;
    m_TitleFormat = "%s";
    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
    m_Cell = NULL;
    m_Parser = new wxHtmlWinParser(this);
    m_Parser -> SetFS(m_FS);
    SetBorders(10);
    m_HistoryPos = -1;
    m_HistoryOn = TRUE;
    m_Style = style;
    SetPage("<html><body></body></html>");
}


wxHtmlWindow::~wxHtmlWindow()
{
    HistoryClear();

    if (m_Cell) delete m_Cell;

    delete m_Parser;
    delete m_FS;
}


void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
{
    m_RelatedFrame = frame;
    m_TitleFormat = format;
}


void wxHtmlWindow::SetRelatedStatusBar(int bar)
{
    m_RelatedStatusBar = bar;
}


void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
{
    wxString op = m_OpenedPage;

    m_Parser -> SetFonts(normal_face, fixed_face, sizes);
    SetPage(wxT("<html><body></body></html>")); // fonts changed => contents invalid
    if (!op.IsEmpty()) LoadPage(op);
}


bool wxHtmlWindow::SetPage(const wxString& source)
{
    wxClientDC *dc = new wxClientDC(this);

    dc -> SetMapMode(wxMM_TEXT);
    SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
    m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
    m_Parser -> SetDC(dc);
    if (m_Cell) {
        delete m_Cell;
        m_Cell = NULL;
    }
    m_Cell = (wxHtmlContainerCell*) m_Parser -> Parse(source);
    delete dc;
    m_Cell -> SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
    m_Cell -> SetAlignHor(wxHTML_ALIGN_CENTER);
    CreateLayout();
    if (m_tmpCanDrawLocks == 0) Refresh();
    return TRUE;
}


bool wxHtmlWindow::LoadPage(const wxString& location)
{
    wxFSFile *f;
    bool rt_val;

    SetCursor(*wxHOURGLASS_CURSOR);
    wxYield();

    m_tmpCanDrawLocks++;
    if (m_HistoryOn && (m_HistoryPos != -1)) { // store scroll position into history item
        int x, y;
        ViewStart(&x, &y);
        m_History[m_HistoryPos].SetPos(y);
    }

    if (location[0] == '#') { // local anchor
        wxString anch = location.Mid(1) /*1 to end*/;
        m_tmpCanDrawLocks--;
        rt_val = ScrollToAnchor(anch);
    }

    else {
        // load&display it:
        if (m_RelatedStatusBar != -1) {
            m_RelatedFrame -> SetStatusText(_("Connecting..."), m_RelatedStatusBar);
            Refresh();
        }

        f = m_FS -> OpenFile(location);
        if (f == NULL) {
            wxString err;

            wxLogError(_("Unable to open requested HTML document: %s"), location.mb_str());
            m_tmpCanDrawLocks--;

            SetCursor(*wxSTANDARD_CURSOR);
            return FALSE;
        }

        else {
            wxNode *node;
            wxString src = wxEmptyString;

            if (m_RelatedStatusBar != -1) {
                wxString msg = _("Loading : ") + location;
                m_RelatedFrame -> SetStatusText(msg, m_RelatedStatusBar);
                Refresh();
            }

            node = m_Filters.GetFirst();
            while (node){
                wxHtmlFilter *h = (wxHtmlFilter*) node -> GetData();
                if (h -> CanRead(*f)) {
                    src = h -> ReadFile(*f);
                    break;
                }
                node = node -> GetNext();
            }
            if (src == wxEmptyString) {
                if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
                src = m_DefaultFilter -> ReadFile(*f);
            }

            m_FS -> ChangePathTo(f -> GetLocation());
            rt_val = SetPage(src);
            m_OpenedPage = f -> GetLocation();
            if (f -> GetAnchor() != wxEmptyString) {
//                m_tmpCanDrawLocks--;
                ScrollToAnchor(f -> GetAnchor());
//                m_tmpCanDrawLocks++;
            }

            delete f;

            if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(_("Done"), m_RelatedStatusBar);
        }
    }

    if (m_HistoryOn) { // add this page to history there:
        int c = m_History.GetCount() - (m_HistoryPos + 1);

        m_HistoryPos++;
        for (int i = 0; i < c; i++)
            m_History.Remove(m_HistoryPos);
        m_History.Add(new HtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
    }

    SetCursor(*wxSTANDARD_CURSOR);

    wxYield();
    m_tmpCanDrawLocks--;
    Refresh();
    return rt_val;
}


bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
{
    const wxHtmlCell *c = m_Cell -> Find(wxHTML_COND_ISANCHOR, &anchor);
    if (!c)
    {
        wxLogWarning(_("HTML anchor %s does not exist."), anchor.mb_str());
        return FALSE;
    }
    else {
        int y;

        for (y = 0; c != NULL; c = c -> GetParent()) y += c -> GetPosY();
        Scroll(-1, y / wxHTML_SCROLL_STEP);
        m_OpenedAnchor = anchor;
        return TRUE;
    }
}


void wxHtmlWindow::OnSetTitle(const wxString& title)
{
    if (m_RelatedFrame) {
        wxString tit;
        tit.Printf(m_TitleFormat, title.c_str());
        m_RelatedFrame -> SetTitle(tit);
    }
    m_OpenedPageTitle = title;
}


void wxHtmlWindow::CreateLayout()
{
    int ClientWidth, ClientHeight;

    if (!m_Cell) return;

    if (m_Style == wxHW_SCROLLBAR_NEVER) {
        SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
        GetClientSize(&ClientWidth, &ClientHeight);
        m_Cell -> Layout(ClientWidth);
    }

    else {
        GetClientSize(&ClientWidth, &ClientHeight);
#ifndef __WXMSW__
        // VS : this looks extremely ugly under windoze, better fix needed!
        SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, ClientHeight * 2); // always on
#endif
        GetClientSize(&ClientWidth, &ClientHeight);
        m_Cell -> Layout(ClientWidth);
        if (ClientHeight < m_Cell -> GetHeight() + GetCharHeight()) {
            SetScrollbars(
                  wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
                  m_Cell -> GetWidth() / wxHTML_SCROLL_STEP,
                  (m_Cell -> GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
                  /*cheat: top-level frag is always container*/);
        }
        else { /* we fit into window, no need for scrollbars */
            SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
            GetClientSize(&ClientWidth, &ClientHeight);
            m_Cell -> Layout(ClientWidth); // ...and relayout
        }
    }
}


void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
{
    wxString oldpath;
    wxString tmp;
    int p_fontsizes[7];
    wxString p_fff, p_ffn;

    if (path != wxEmptyString) {
        oldpath = cfg -> GetPath();
        cfg -> SetPath(path);
    }

    m_Borders = cfg -> Read("wxHtmlWindow/Borders", m_Borders);
    p_fff = cfg -> Read("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
    p_ffn = cfg -> Read("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
    for (int i = 0; i < 7; i++) {
        tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
        p_fontsizes[i] = cfg -> Read(tmp, m_Parser -> m_FontsSizes[i]);
    }
    SetFonts(p_ffn, p_fff, p_fontsizes);

    if (path != wxEmptyString)
        cfg -> SetPath(oldpath);
}


void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
{
    wxString oldpath;
    wxString tmp;

    if (path != wxEmptyString) {
        oldpath = cfg -> GetPath();
        cfg -> SetPath(path);
    }

    cfg -> Write("wxHtmlWindow/Borders", (long) m_Borders);
    cfg -> Write("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
    cfg -> Write("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
    for (int i = 0; i < 7; i++) {
        tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
        cfg -> Write(tmp, (long) m_Parser -> m_FontsSizes[i]);
    }

    if (path != wxEmptyString)
        cfg -> SetPath(oldpath);
}


bool wxHtmlWindow::HistoryBack()
{
    wxString a, l;

    if (m_HistoryPos < 1) return FALSE;

    m_HistoryPos--;

    l = m_History[m_HistoryPos].GetPage();
    a = m_History[m_HistoryPos].GetAnchor();
    m_HistoryOn = FALSE;
    m_tmpCanDrawLocks++;
    if (a == wxEmptyString) LoadPage(l);
    else LoadPage(l + "#" + a);
    m_HistoryOn = TRUE;
    wxYield();
    m_tmpCanDrawLocks--;
    Scroll(0, m_History[m_HistoryPos].GetPos());
    Refresh();
    return TRUE;
}


bool wxHtmlWindow::HistoryForward()
{
    wxString a, l;

    if (m_HistoryPos == -1) return FALSE;
    if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;

    m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()

    m_HistoryPos++;
    l = m_History[m_HistoryPos].GetPage();
    a = m_History[m_HistoryPos].GetAnchor();
    m_HistoryOn = FALSE;
    m_tmpCanDrawLocks++;
    if (a == wxEmptyString) LoadPage(l);
    else LoadPage(l + "#" + a);
    m_HistoryOn = TRUE;
    wxYield();
    m_tmpCanDrawLocks--;
    Scroll(0, m_History[m_HistoryPos].GetPos());
    Refresh();
    return TRUE;
}


void wxHtmlWindow::HistoryClear()
{
    m_History.Empty();
    m_HistoryPos = -1;
}


wxList wxHtmlWindow::m_Filters;
wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;

void wxHtmlWindow::CleanUpStatics()
{
    if (m_DefaultFilter) delete m_DefaultFilter;
    m_DefaultFilter = NULL;
    m_Filters.DeleteContents(TRUE);
    m_Filters.Clear();

}


void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
{
    m_Filters.Append(filter);
}


void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
{
    LoadPage(link.GetHref());
}


void wxHtmlWindow::OnDraw(wxDC& dc)
{
    int x, y;
    wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
    int v_y, v_h;

    if (m_tmpCanDrawLocks > 0) return;
    dc.SetMapMode(wxMM_TEXT);
#if 0
/* VS - I don't think this is neccessary any longer
        MSC_VER 1200 means MSVC 6.0 and it works fine */
#if defined(_MSC_VER) && (_MSC_VER == 1200)
    ::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
#endif
#endif
    dc.SetBackgroundMode(wxTRANSPARENT);
    ViewStart(&x, &y);

    while (upd) {
        v_y = upd.GetY();
        v_h = upd.GetH();
        if (m_Cell) m_Cell -> Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
        upd++;
    }
}


void wxHtmlWindow::OnSize(wxSizeEvent& event)
{
    wxScrolledWindow::OnSize(event);
    CreateLayout();
}


void wxHtmlWindow::OnKeyDown(wxKeyEvent& event)
{
    int dummy;
    int sty, szy, cliy;

    ViewStart(&dummy, &sty);
    GetClientSize(&dummy, &cliy); cliy /= wxHTML_SCROLL_STEP;
    GetVirtualSize(&dummy, &szy); szy /= wxHTML_SCROLL_STEP;

    switch (event.KeyCode()) {
        case WXK_PAGEUP :
        case WXK_PRIOR :
                Scroll(-1, sty - (5 * cliy / 6));
                break;
        case WXK_PAGEDOWN :
        case WXK_NEXT :
                Scroll(-1, sty + (5 * cliy / 6));
                break;
        case WXK_HOME :
                Scroll(-1, 0);
                break;
        case WXK_END :
                Scroll(-1, szy - cliy);
                break;
        case WXK_UP :
                Scroll(-1, sty - 1);
                break;
        case WXK_DOWN :
                Scroll(-1, sty + 1);
                break;
    }
}


void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
{
    m_tmpMouseMoved = TRUE;

    if (event.ButtonDown()) {
        int sx, sy;
        wxPoint pos;
        wxString lnk;

        ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
        pos = event.GetPosition();

        if (m_Cell)
            m_Cell -> OnMouseClick(this, sx + pos.x, sy + pos.y, event);
    }
}


void wxHtmlWindow::OnIdle(wxIdleEvent& event)
{
    static wxCursor cur_hand(wxCURSOR_HAND), cur_arrow(wxCURSOR_ARROW);

    if (m_tmpMouseMoved && (m_Cell != NULL)) {
        int sx, sy;
        int x, y;
        wxHtmlLinkInfo *lnk;

        ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
        wxGetMousePosition(&x, &y);
        ScreenToClient(&x, &y);
        lnk = m_Cell -> GetLink(sx + x, sy + y);

        if (lnk != m_tmpLastLink) {
            if (lnk == NULL) {
                SetCursor(cur_arrow);
                if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(wxEmptyString, m_RelatedStatusBar);
            }
            else {
                SetCursor(cur_hand);
                if (m_RelatedStatusBar != -1)
                    m_RelatedFrame -> SetStatusText(lnk -> GetHref(), m_RelatedStatusBar);
            }
            m_tmpLastLink = lnk;
        }
        m_tmpMouseMoved = FALSE;
    }
}


IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)

BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
    EVT_SIZE(wxHtmlWindow::OnSize)
    EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
    EVT_MOTION(wxHtmlWindow::OnMouseEvent)
    EVT_IDLE(wxHtmlWindow::OnIdle)
    EVT_KEY_DOWN(wxHtmlWindow::OnKeyDown)
END_EVENT_TABLE()


// A module to allow initialization/cleanup
// without calling these functions from app.cpp or from
// the user's application.

class wxHtmlWinModule: public wxModule
{
DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
public:
    wxHtmlWinModule() : wxModule() {}
    bool OnInit() { return TRUE; }
    void OnExit() { wxHtmlWindow::CleanUpStatics(); }
};

IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)


///// default mod handlers are forced there:

FORCE_LINK(m_layout)
FORCE_LINK(m_fonts)
FORCE_LINK(m_image)
FORCE_LINK(m_list)
FORCE_LINK(m_dflist)
FORCE_LINK(m_pre)
FORCE_LINK(m_hline)
FORCE_LINK(m_links)
FORCE_LINK(m_tables)
FORCE_LINK(m_meta)


#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: htmlwin.cpp
	3	// Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation)
	4	// Author: Vaclav Slavik
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10
	11	#ifdef __GNUG__
	12	#pragma implementation
	13	#endif
	14
	15	#include "wx/wxprec.h"
	16
	17	#include "wx/defs.h"
	18	#if wxUSE_HTML
	19
	20	#ifdef __BORDLANDC__
	21	#pragma hdrstop
	22	#endif
	23
	24	#ifndef WXPRECOMP
	25	#include "wx/wx.h"
	26	#endif
	27
	28	#include "wx/html/htmlwin.h"
	29	#include "wx/html/forcelnk.h"
	30	#include "wx/log.h"
	31
	32
	33	//-----------------------------------------------------------------------------
	34	// wxHtmlWindow
	35	//-----------------------------------------------------------------------------
	36
	37
	38
	39	#include "wx/arrimpl.cpp"
	40	WX_DEFINE_OBJARRAY(HtmlHistoryArray)
	41
	42
	43	wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
	44	long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, wxVSCROLL \| wxHSCROLL, name)
	45	{
	46	m_tmpMouseMoved = FALSE;
	47	m_tmpLastLink = NULL;
	48	m_tmpCanDrawLocks = 0;
	49	m_FS = new wxFileSystem();
	50	m_RelatedStatusBar = -1;
	51	m_RelatedFrame = NULL;
	52	m_TitleFormat = "%s";
	53	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	54	m_Cell = NULL;
	55	m_Parser = new wxHtmlWinParser(this);
	56	m_Parser -> SetFS(m_FS);
	57	SetBorders(10);
	58	m_HistoryPos = -1;
	59	m_HistoryOn = TRUE;
	60	m_Style = style;
	61	SetPage("<html><body></body></html>");
	62	}
	63
	64
	65
	66	wxHtmlWindow::~wxHtmlWindow()
	67	{
	68	HistoryClear();
	69
	70	if (m_Cell) delete m_Cell;
	71
	72	delete m_Parser;
	73	delete m_FS;
	74	}
	75
	76
	77
	78	void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
	79	{
	80	m_RelatedFrame = frame;
	81	m_TitleFormat = format;
	82	}
	83
	84
	85
	86	void wxHtmlWindow::SetRelatedStatusBar(int bar)
	87	{
	88	m_RelatedStatusBar = bar;
	89	}
	90
	91
	92
	93	void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
	94	{
	95	wxString op = m_OpenedPage;
	96
	97	m_Parser -> SetFonts(normal_face, fixed_face, sizes);
	98	SetPage(wxT("<html><body></body></html>")); // fonts changed => contents invalid
	99	if (!op.IsEmpty()) LoadPage(op);
	100	}
	101
	102
	103
	104	bool wxHtmlWindow::SetPage(const wxString& source)
	105	{
	106	wxClientDC *dc = new wxClientDC(this);
	107
	108	dc -> SetMapMode(wxMM_TEXT);
	109	SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
	110	m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
	111	m_Parser -> SetDC(dc);
	112	if (m_Cell) {
	113	delete m_Cell;
	114	m_Cell = NULL;
	115	}
	116	m_Cell = (wxHtmlContainerCell*) m_Parser -> Parse(source);
	117	delete dc;
	118	m_Cell -> SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
	119	m_Cell -> SetAlignHor(wxHTML_ALIGN_CENTER);
	120	CreateLayout();
	121	if (m_tmpCanDrawLocks == 0) Refresh();
	122	return TRUE;
	123	}
	124
	125
	126	bool wxHtmlWindow::LoadPage(const wxString& location)
	127	{
	128	wxFSFile *f;
	129	bool rt_val;
	130
	131	SetCursor(*wxHOURGLASS_CURSOR);
	132	wxYield();
	133
	134	m_tmpCanDrawLocks++;
	135	if (m_HistoryOn && (m_HistoryPos != -1)) { // store scroll position into history item
	136	int x, y;
	137	ViewStart(&x, &y);
	138	m_History[m_HistoryPos].SetPos(y);
	139	}
	140
	141	if (location[0] == '#') { // local anchor
	142	wxString anch = location.Mid(1) /1 to end/;
	143	m_tmpCanDrawLocks--;
	144	rt_val = ScrollToAnchor(anch);
	145	}
	146
	147	else {
	148	// load&display it:
	149	if (m_RelatedStatusBar != -1) {
	150	m_RelatedFrame -> SetStatusText(_("Connecting..."), m_RelatedStatusBar);
	151	Refresh();
	152	}
	153
	154	f = m_FS -> OpenFile(location);
	155	if (f == NULL) {
	156	wxString err;
	157
	158	wxLogError(_("Unable to open requested HTML document: %s"), location.mb_str());
	159	m_tmpCanDrawLocks--;
	160
	161	SetCursor(*wxSTANDARD_CURSOR);
	162	return FALSE;
	163	}
	164
	165	else {
	166	wxNode *node;
	167	wxString src = wxEmptyString;
	168
	169	if (m_RelatedStatusBar != -1) {
	170	wxString msg = _("Loading : ") + location;
	171	m_RelatedFrame -> SetStatusText(msg, m_RelatedStatusBar);
	172	Refresh();
	173	}
	174
	175	node = m_Filters.GetFirst();
	176	while (node){
	177	wxHtmlFilter h = (wxHtmlFilter) node -> GetData();
	178	if (h -> CanRead(*f)) {
	179	src = h -> ReadFile(*f);
	180	break;
	181	}
	182	node = node -> GetNext();
	183	}
	184	if (src == wxEmptyString) {
	185	if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
	186	src = m_DefaultFilter -> ReadFile(*f);
	187	}
	188
	189	m_FS -> ChangePathTo(f -> GetLocation());
	190	rt_val = SetPage(src);
	191	m_OpenedPage = f -> GetLocation();
	192	if (f -> GetAnchor() != wxEmptyString) {
	193	// m_tmpCanDrawLocks--;
	194	ScrollToAnchor(f -> GetAnchor());
	195	// m_tmpCanDrawLocks++;
	196	}
	197
	198	delete f;
	199
	200	if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(_("Done"), m_RelatedStatusBar);
	201	}
	202	}
	203
	204	if (m_HistoryOn) { // add this page to history there:
	205	int c = m_History.GetCount() - (m_HistoryPos + 1);
	206
	207	m_HistoryPos++;
	208	for (int i = 0; i < c; i++)
	209	m_History.Remove(m_HistoryPos);
	210	m_History.Add(new HtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
	211	}
	212
	213	SetCursor(*wxSTANDARD_CURSOR);
	214
	215	wxYield();
	216	m_tmpCanDrawLocks--;
	217	Refresh();
	218	return rt_val;
	219	}
	220
	221
	222
	223	bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
	224	{
	225	const wxHtmlCell *c = m_Cell -> Find(wxHTML_COND_ISANCHOR, &anchor);
	226	if (!c)
	227	{
	228	wxLogWarning(_("HTML anchor %s does not exist."), anchor.mb_str());
	229	return FALSE;
	230	}
	231	else {
	232	int y;
	233
	234	for (y = 0; c != NULL; c = c -> GetParent()) y += c -> GetPosY();
	235	Scroll(-1, y / wxHTML_SCROLL_STEP);
	236	m_OpenedAnchor = anchor;
	237	return TRUE;
	238	}
	239	}
	240
	241
	242	void wxHtmlWindow::OnSetTitle(const wxString& title)
	243	{
	244	if (m_RelatedFrame) {
	245	wxString tit;
	246	tit.Printf(m_TitleFormat, title.c_str());
	247	m_RelatedFrame -> SetTitle(tit);
	248	}
	249	m_OpenedPageTitle = title;
	250	}
	251
	252
	253
	254
	255
	256	void wxHtmlWindow::CreateLayout()
	257	{
	258	int ClientWidth, ClientHeight;
	259
	260	if (!m_Cell) return;
	261
	262	if (m_Style == wxHW_SCROLLBAR_NEVER) {
	263	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
	264	GetClientSize(&ClientWidth, &ClientHeight);
	265	m_Cell -> Layout(ClientWidth);
	266	}
	267
	268	else {
	269	GetClientSize(&ClientWidth, &ClientHeight);
	270	#ifndef __WXMSW__
	271	// VS : this looks extremely ugly under windoze, better fix needed!
	272	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, ClientHeight * 2); // always on
	273	#endif
	274	GetClientSize(&ClientWidth, &ClientHeight);
	275	m_Cell -> Layout(ClientWidth);
	276	if (ClientHeight < m_Cell -> GetHeight() + GetCharHeight()) {
	277	SetScrollbars(
	278	wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
	279	m_Cell -> GetWidth() / wxHTML_SCROLL_STEP,
	280	(m_Cell -> GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
	281	/cheat: top-level frag is always container/);
	282	}
	283	else { /* we fit into window, no need for scrollbars */
	284	SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell -> GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
	285	GetClientSize(&ClientWidth, &ClientHeight);
	286	m_Cell -> Layout(ClientWidth); // ...and relayout
	287	}
	288	}
	289	}
	290
	291
	292
	293	void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
	294	{
	295	wxString oldpath;
	296	wxString tmp;
	297	int p_fontsizes[7];
	298	wxString p_fff, p_ffn;
	299
	300	if (path != wxEmptyString) {
	301	oldpath = cfg -> GetPath();
	302	cfg -> SetPath(path);
	303	}
	304
	305	m_Borders = cfg -> Read("wxHtmlWindow/Borders", m_Borders);
	306	p_fff = cfg -> Read("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
	307	p_ffn = cfg -> Read("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
	308	for (int i = 0; i < 7; i++) {
	309	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	310	p_fontsizes[i] = cfg -> Read(tmp, m_Parser -> m_FontsSizes[i]);
	311	}
	312	SetFonts(p_ffn, p_fff, p_fontsizes);
	313
	314	if (path != wxEmptyString)
	315	cfg -> SetPath(oldpath);
	316	}
	317
	318
	319
	320	void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
	321	{
	322	wxString oldpath;
	323	wxString tmp;
	324
	325	if (path != wxEmptyString) {
	326	oldpath = cfg -> GetPath();
	327	cfg -> SetPath(path);
	328	}
	329
	330	cfg -> Write("wxHtmlWindow/Borders", (long) m_Borders);
	331	cfg -> Write("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
	332	cfg -> Write("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
	333	for (int i = 0; i < 7; i++) {
	334	tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
	335	cfg -> Write(tmp, (long) m_Parser -> m_FontsSizes[i]);
	336	}
	337
	338	if (path != wxEmptyString)
	339	cfg -> SetPath(oldpath);
	340	}
	341
	342
	343
	344	bool wxHtmlWindow::HistoryBack()
	345	{
	346	wxString a, l;
	347
	348	if (m_HistoryPos < 1) return FALSE;
	349
	350	m_HistoryPos--;
	351
	352	l = m_History[m_HistoryPos].GetPage();
	353	a = m_History[m_HistoryPos].GetAnchor();
	354	m_HistoryOn = FALSE;
	355	m_tmpCanDrawLocks++;
	356	if (a == wxEmptyString) LoadPage(l);
	357	else LoadPage(l + "#" + a);
	358	m_HistoryOn = TRUE;
	359	wxYield();
	360	m_tmpCanDrawLocks--;
	361	Scroll(0, m_History[m_HistoryPos].GetPos());
	362	Refresh();
	363	return TRUE;
	364	}
	365
	366
	367
	368	bool wxHtmlWindow::HistoryForward()
	369	{
	370	wxString a, l;
	371
	372	if (m_HistoryPos == -1) return FALSE;
	373	if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
	374
	375	m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
	376
	377	m_HistoryPos++;
	378	l = m_History[m_HistoryPos].GetPage();
	379	a = m_History[m_HistoryPos].GetAnchor();
	380	m_HistoryOn = FALSE;
	381	m_tmpCanDrawLocks++;
	382	if (a == wxEmptyString) LoadPage(l);
	383	else LoadPage(l + "#" + a);
	384	m_HistoryOn = TRUE;
	385	wxYield();
	386	m_tmpCanDrawLocks--;
	387	Scroll(0, m_History[m_HistoryPos].GetPos());
	388	Refresh();
	389	return TRUE;
	390	}
	391
	392
	393
	394	void wxHtmlWindow::HistoryClear()
	395	{
	396	m_History.Empty();
	397	m_HistoryPos = -1;
	398	}
	399
	400
	401
	402	wxList wxHtmlWindow::m_Filters;
	403	wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
	404
	405	void wxHtmlWindow::CleanUpStatics()
	406	{
	407	if (m_DefaultFilter) delete m_DefaultFilter;
	408	m_DefaultFilter = NULL;
	409	m_Filters.DeleteContents(TRUE);
	410	m_Filters.Clear();
	411
	412	}
	413
	414
	415
	416	void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
	417	{
	418	m_Filters.Append(filter);
	419	}
	420
	421
	422
	423
	424	void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
	425	{
	426	LoadPage(link.GetHref());
	427	}
	428
	429
	430
	431	void wxHtmlWindow::OnDraw(wxDC& dc)
	432	{
	433	int x, y;
	434	wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
	435	int v_y, v_h;
	436
	437	if (m_tmpCanDrawLocks > 0) return;
	438	dc.SetMapMode(wxMM_TEXT);
	439	#if 0
	440	/* VS - I don't think this is neccessary any longer
	441	MSC_VER 1200 means MSVC 6.0 and it works fine */
	442	#if defined(_MSC_VER) && (_MSC_VER == 1200)
	443	::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
	444	#endif
	445	#endif
	446	dc.SetBackgroundMode(wxTRANSPARENT);
	447	ViewStart(&x, &y);
	448
	449	while (upd) {
	450	v_y = upd.GetY();
	451	v_h = upd.GetH();
	452	if (m_Cell) m_Cell -> Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
	453	upd++;
	454	}
	455	}
	456
	457
	458
	459
	460	void wxHtmlWindow::OnSize(wxSizeEvent& event)
	461	{
	462	wxScrolledWindow::OnSize(event);
	463	CreateLayout();
	464	}
	465
	466
	467
	468	void wxHtmlWindow::OnKeyDown(wxKeyEvent& event)
	469	{
	470	int dummy;
	471	int sty, szy, cliy;
	472
	473	ViewStart(&dummy, &sty);
	474	GetClientSize(&dummy, &cliy); cliy /= wxHTML_SCROLL_STEP;
	475	GetVirtualSize(&dummy, &szy); szy /= wxHTML_SCROLL_STEP;
	476
	477	switch (event.KeyCode()) {
	478	case WXK_PAGEUP :
	479	case WXK_PRIOR :
	480	Scroll(-1, sty - (5 * cliy / 6));
	481	break;
	482	case WXK_PAGEDOWN :
	483	case WXK_NEXT :
	484	Scroll(-1, sty + (5 * cliy / 6));
	485	break;
	486	case WXK_HOME :
	487	Scroll(-1, 0);
	488	break;
	489	case WXK_END :
	490	Scroll(-1, szy - cliy);
	491	break;
	492	case WXK_UP :
	493	Scroll(-1, sty - 1);
	494	break;
	495	case WXK_DOWN :
	496	Scroll(-1, sty + 1);
	497	break;
	498	}
	499	}
	500
	501
	502
	503	void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
	504	{
	505	m_tmpMouseMoved = TRUE;
	506
	507	if (event.ButtonDown()) {
	508	int sx, sy;
	509	wxPoint pos;
	510	wxString lnk;
	511
	512	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	513	pos = event.GetPosition();
	514
	515	if (m_Cell)
	516	m_Cell -> OnMouseClick(this, sx + pos.x, sy + pos.y, event);
	517	}
	518	}
	519
	520
	521
	522	void wxHtmlWindow::OnIdle(wxIdleEvent& event)
	523	{
	524	static wxCursor cur_hand(wxCURSOR_HAND), cur_arrow(wxCURSOR_ARROW);
	525
	526	if (m_tmpMouseMoved && (m_Cell != NULL)) {
	527	int sx, sy;
	528	int x, y;
	529	wxHtmlLinkInfo *lnk;
	530
	531	ViewStart(&sx, &sy); sx = wxHTML_SCROLL_STEP; sy = wxHTML_SCROLL_STEP;
	532	wxGetMousePosition(&x, &y);
	533	ScreenToClient(&x, &y);
	534	lnk = m_Cell -> GetLink(sx + x, sy + y);
	535
	536	if (lnk != m_tmpLastLink) {
	537	if (lnk == NULL) {
	538	SetCursor(cur_arrow);
	539	if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(wxEmptyString, m_RelatedStatusBar);
	540	}
	541	else {
	542	SetCursor(cur_hand);
	543	if (m_RelatedStatusBar != -1)
	544	m_RelatedFrame -> SetStatusText(lnk -> GetHref(), m_RelatedStatusBar);
	545	}
	546	m_tmpLastLink = lnk;
	547	}
	548	m_tmpMouseMoved = FALSE;
	549	}
	550	}
	551
	552
	553
	554
	555	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
	556
	557	BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
	558	EVT_SIZE(wxHtmlWindow::OnSize)
	559	EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
	560	EVT_MOTION(wxHtmlWindow::OnMouseEvent)
	561	EVT_IDLE(wxHtmlWindow::OnIdle)
	562	EVT_KEY_DOWN(wxHtmlWindow::OnKeyDown)
	563	END_EVENT_TABLE()
	564
	565
	566
	567
	568
	569	// A module to allow initialization/cleanup
	570	// without calling these functions from app.cpp or from
	571	// the user's application.
	572
	573	class wxHtmlWinModule: public wxModule
	574	{
	575	DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
	576	public:
	577	wxHtmlWinModule() : wxModule() {}
	578	bool OnInit() { return TRUE; }
	579	void OnExit() { wxHtmlWindow::CleanUpStatics(); }
	580	};
	581
	582	IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
	583
	584
	585
	586
	587	///// default mod handlers are forced there:
	588
	589	FORCE_LINK(m_layout)
	590	FORCE_LINK(m_fonts)
	591	FORCE_LINK(m_image)
	592	FORCE_LINK(m_list)
	593	FORCE_LINK(m_dflist)
	594	FORCE_LINK(m_pre)
	595	FORCE_LINK(m_hline)
	596	FORCE_LINK(m_links)
	597	FORCE_LINK(m_tables)
	598	FORCE_LINK(m_meta)
	599
	600
	601	#endif