d5db80c269
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4736 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
594 lines
14 KiB
C++
594 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: htmlwin.cpp
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// Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation)
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// Author: Vaclav Slavik
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "wx/wxprec.h"
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#include "wx/defs.h"
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#if wxUSE_HTML
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#ifdef __BORDLANDC__
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#pragma hdrstop
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#endif
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#ifndef WXPRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/html/htmlwin.h"
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#include "wx/html/forcelnk.h"
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//-----------------------------------------------------------------------------
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// wxHtmlWindow
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//-----------------------------------------------------------------------------
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#include "wx/arrimpl.cpp"
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WX_DEFINE_OBJARRAY(HtmlHistoryArray)
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wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
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long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, wxVSCROLL, name)
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{
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m_tmpMouseMoved = FALSE;
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m_tmpLastLink = wxEmptyString;
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m_tmpCanDraw = TRUE;
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m_FS = new wxFileSystem();
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m_RelatedStatusBar = -1;
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m_RelatedFrame = NULL;
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m_TitleFormat = "%s";
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m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
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m_Cell = NULL;
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m_Parser = new wxHtmlWinParser(this);
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m_Parser -> SetFS(m_FS);
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SetBorders(10);
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m_HistoryPos = -1;
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m_HistoryOn = TRUE;
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m_Style = style;
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SetPage("<html><body></body></html>");
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}
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wxHtmlWindow::~wxHtmlWindow()
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{
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HistoryClear();
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if (m_Cell) delete m_Cell;
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wxList *parser_data = m_Parser -> GetTempData();
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if (parser_data) delete parser_data;
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delete m_Parser;
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delete m_FS;
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}
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void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format)
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{
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m_RelatedFrame = frame;
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m_TitleFormat = format;
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}
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void wxHtmlWindow::SetRelatedStatusBar(int bar)
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{
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m_RelatedStatusBar = bar;
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}
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void wxHtmlWindow::SetFonts(wxString normal_face, int normal_italic_mode, wxString fixed_face, int fixed_italic_mode, const int *sizes)
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{
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wxString op = m_OpenedPage;
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m_Parser -> SetFonts(normal_face, normal_italic_mode, fixed_face, fixed_italic_mode, sizes);
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SetPage(wxT("")); // fonts changed => contents invalid
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if (!op.IsEmpty()) LoadPage(op);
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}
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bool wxHtmlWindow::SetPage(const wxString& source)
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{
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wxClientDC *dc = new wxClientDC(this);
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dc -> SetMapMode(wxMM_TEXT);
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SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
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m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
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m_Parser -> SetDC(dc);
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if (m_Cell) {
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delete m_Cell;
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m_Cell = NULL;
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}
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m_Cell = (wxHtmlContainerCell*) m_Parser -> Parse(source);
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delete dc;
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m_Cell -> SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
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m_Cell -> SetAlignHor(wxHTML_ALIGN_CENTER);
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CreateLayout();
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Refresh();
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return TRUE;
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}
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bool wxHtmlWindow::LoadPage(const wxString& location)
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{
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wxFSFile *f;
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bool rt_val;
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SetCursor(*wxHOURGLASS_CURSOR);
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wxYield();
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m_tmpCanDraw = FALSE;
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if (m_HistoryOn && (m_HistoryPos != -1)) { // store scroll position into history item
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int x, y;
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ViewStart(&x, &y);
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m_History[m_HistoryPos].SetPos(y);
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}
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if (location[0] == '#') { // local anchor
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wxString anch = location.Mid(1) /*1 to end*/;
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m_tmpCanDraw = TRUE;
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rt_val = ScrollToAnchor(anch);
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}
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else {
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// load&display it:
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if (m_RelatedStatusBar != -1) {
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m_RelatedFrame -> SetStatusText(_("Connecting..."), m_RelatedStatusBar);
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Refresh();
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}
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f = m_FS -> OpenFile(location);
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if (f == NULL) {
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wxString err;
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err.Printf(_("The browser is unable to open requested location :\n\n%s"), WXSTRINGCAST location);
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m_tmpCanDraw = TRUE;
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Refresh();
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wxMessageBox(err, "Error");
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SetCursor(*wxSTANDARD_CURSOR);
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return FALSE;
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}
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else {
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wxNode *node;
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wxString src = wxEmptyString;
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if (m_RelatedStatusBar != -1) {
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wxString msg = _("Loading : ") + location;
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m_RelatedFrame -> SetStatusText(msg, m_RelatedStatusBar);
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Refresh();
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}
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node = m_Filters.GetFirst();
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while (node){
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wxHtmlFilter *h = (wxHtmlFilter*) node -> GetData();
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if (h -> CanRead(*f)) {
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src = h -> ReadFile(*f);
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break;
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}
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node = node -> GetNext();
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}
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if (src == wxEmptyString) {
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if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter();
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src = m_DefaultFilter -> ReadFile(*f);
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}
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m_FS -> ChangePathTo(f -> GetLocation());
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rt_val = SetPage(src);
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m_OpenedPage = f -> GetLocation();
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if (f -> GetAnchor() != wxEmptyString) {
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m_tmpCanDraw = TRUE;
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ScrollToAnchor(f -> GetAnchor());
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m_tmpCanDraw = FALSE;
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}
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delete f;
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if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(_("Done"), m_RelatedStatusBar);
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}
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}
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if (m_HistoryOn) { // add this page to history there:
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int c = m_History.GetCount() - (m_HistoryPos + 1);
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m_HistoryPos++;
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for (int i = 0; i < c; i++)
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m_History.Remove(m_HistoryPos);
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m_History.Add(new HtmlHistoryItem(m_OpenedPage, m_OpenedAnchor));
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}
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SetCursor(*wxSTANDARD_CURSOR);
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m_tmpCanDraw = TRUE;
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Refresh();
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return rt_val;
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}
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bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
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{
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const wxHtmlCell *c = m_Cell -> Find(wxHTML_COND_ISANCHOR, &anchor);
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if (!c) return FALSE;
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else {
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int y;
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for (y = 0; c != NULL; c = c -> GetParent()) y += c -> GetPosY();
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Scroll(-1, y / wxHTML_SCROLL_STEP);
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m_OpenedAnchor = anchor;
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return TRUE;
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}
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}
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void wxHtmlWindow::OnSetTitle(const wxString& title)
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{
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if (m_RelatedFrame) {
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wxString tit;
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tit.Printf(m_TitleFormat, title.c_str());
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m_RelatedFrame -> SetTitle(tit);
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}
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m_OpenedPageTitle = title;
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}
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void wxHtmlWindow::CreateLayout()
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{
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int ClientWidth, ClientHeight;
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if (!m_Cell) return;
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if (m_Style == wxHW_SCROLLBAR_NEVER) {
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SetScrollbars(1, 1, 0, 0); // always off
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GetClientSize(&ClientWidth, &ClientHeight);
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m_Cell -> Layout(ClientWidth);
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}
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else {
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GetClientSize(&ClientWidth, &ClientHeight);
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#ifndef __WXMSW__
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// VS : this looks extremely ugly under windoze, better fix needed!
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SetScrollbars(1, 1, 0, ClientHeight * 2); // always on
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#endif
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GetClientSize(&ClientWidth, &ClientHeight);
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m_Cell -> Layout(ClientWidth);
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if (ClientHeight < m_Cell -> GetHeight()) {
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SetScrollbars(wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
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m_Cell -> GetWidth() / wxHTML_SCROLL_STEP,
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m_Cell -> GetHeight() / wxHTML_SCROLL_STEP
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/*cheat: top-level frag is always container*/);
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}
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else { /* we fit into window, no need for scrollbars */
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SetScrollbars(1, 1, 0, 0); // disable...
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GetClientSize(&ClientWidth, &ClientHeight);
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m_Cell -> Layout(ClientWidth); // ...and relayout
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}
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}
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}
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void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
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{
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wxString oldpath;
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wxString tmp;
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int p_fontsizes[7];
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wxString p_fff, p_ffn;
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int p_imf, p_imn;
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if (path != wxEmptyString) {
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oldpath = cfg -> GetPath();
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cfg -> SetPath(path);
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}
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m_Borders = cfg -> Read("wxHtmlWindow/Borders", m_Borders);
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p_fff = cfg -> Read("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
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p_ffn = cfg -> Read("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
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p_imf = cfg -> Read("wxHtmlWindow/ItalicModeFixed", m_Parser -> m_ItalicModeFixed);
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p_imn = cfg -> Read("wxHtmlWindow/ItalicModeNormal", m_Parser -> m_ItalicModeNormal);
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for (int i = 0; i < 7; i++) {
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tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
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p_fontsizes[i] = cfg -> Read(tmp, m_Parser -> m_FontsSizes[i]);
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}
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m_Parser -> SetFonts(p_ffn, p_imn, p_fff, p_imf, p_fontsizes);
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if (path != wxEmptyString)
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cfg -> SetPath(oldpath);
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}
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void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path)
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{
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wxString oldpath;
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wxString tmp;
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if (path != wxEmptyString) {
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oldpath = cfg -> GetPath();
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cfg -> SetPath(path);
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}
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cfg -> Write("wxHtmlWindow/Borders", (long) m_Borders);
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cfg -> Write("wxHtmlWindow/FontFaceFixed", m_Parser -> m_FontFaceFixed);
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cfg -> Write("wxHtmlWindow/FontFaceNormal", m_Parser -> m_FontFaceNormal);
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cfg -> Write("wxHtmlWindow/ItalicModeFixed", (long) m_Parser -> m_ItalicModeFixed);
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cfg -> Write("wxHtmlWindow/ItalicModeNormal", (long) m_Parser -> m_ItalicModeNormal);
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for (int i = 0; i < 7; i++) {
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tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i);
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cfg -> Write(tmp, (long) m_Parser -> m_FontsSizes[i]);
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}
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if (path != wxEmptyString)
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cfg -> SetPath(oldpath);
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}
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bool wxHtmlWindow::HistoryBack()
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{
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wxString a, l;
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if (m_HistoryPos < 1) return FALSE;
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m_HistoryPos--;
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l = m_History[m_HistoryPos].GetPage();
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a = m_History[m_HistoryPos].GetAnchor();
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m_HistoryOn = FALSE;
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if (a == wxEmptyString) LoadPage(l);
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else LoadPage(l + "#" + a);
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m_HistoryOn = TRUE;
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Scroll(0, m_History[m_HistoryPos].GetPos());
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Refresh();
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return TRUE;
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}
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bool wxHtmlWindow::HistoryForward()
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{
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wxString a, l;
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if (m_HistoryPos == -1) return FALSE;
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if (m_HistoryPos >= (int)m_History.GetCount() - 1)return FALSE;
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m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
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m_HistoryPos++;
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l = m_History[m_HistoryPos].GetPage();
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a = m_History[m_HistoryPos].GetAnchor();
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m_HistoryOn = FALSE;
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if (a == wxEmptyString) LoadPage(l);
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else LoadPage(l + "#" + a);
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m_HistoryOn = TRUE;
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Scroll(0, m_History[m_HistoryPos].GetPos());
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Refresh();
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return TRUE;
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}
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void wxHtmlWindow::HistoryClear()
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{
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m_History.Empty();
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m_HistoryPos = -1;
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}
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wxList wxHtmlWindow::m_Filters;
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wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
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void wxHtmlWindow::CleanUpStatics()
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{
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if (m_DefaultFilter) delete m_DefaultFilter;
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m_DefaultFilter = NULL;
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m_Filters.DeleteContents(TRUE);
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m_Filters.Clear();
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}
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void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
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{
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m_Filters.Append(filter);
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}
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void wxHtmlWindow::OnLinkClicked(const wxString& link)
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{
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LoadPage(link);
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}
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void wxHtmlWindow::OnDraw(wxDC& dc)
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{
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int x, y;
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wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
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int v_y, v_h;
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if (!m_tmpCanDraw) return;
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dc.SetMapMode(wxMM_TEXT);
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#if defined(_MSC_VER) && (_MSC_VER == 1200)
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::SetMapMode((HDC)dc.GetHDC(), MM_TEXT);
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#endif
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dc.SetBackgroundMode(wxTRANSPARENT);
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ViewStart(&x, &y);
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while (upd) {
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v_y = upd.GetY();
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v_h = upd.GetH();
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if (m_Cell) m_Cell -> Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
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upd++;
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}
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}
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void wxHtmlWindow::OnSize(wxSizeEvent& event)
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{
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wxScrolledWindow::OnSize(event);
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CreateLayout();
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}
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void wxHtmlWindow::OnKeyDown(wxKeyEvent& event)
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{
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int dummy;
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int sty, szy, cliy;
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ViewStart(&dummy, &sty);
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GetClientSize(&dummy, &cliy); cliy /= wxHTML_SCROLL_STEP;
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GetVirtualSize(&dummy, &szy); szy /= wxHTML_SCROLL_STEP;
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switch (event.KeyCode()) {
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case WXK_PAGEUP :
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case WXK_PRIOR :
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Scroll(-1, sty - cliy);
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break;
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case WXK_PAGEDOWN :
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case WXK_NEXT :
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Scroll(-1, sty + cliy);
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break;
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case WXK_HOME :
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Scroll(-1, 0);
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break;
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case WXK_END :
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Scroll(-1, szy - cliy);
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break;
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case WXK_UP :
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Scroll(-1, sty - 1);
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break;
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case WXK_DOWN :
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Scroll(-1, sty + 1);
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break;
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}
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}
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void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
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{
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m_tmpMouseMoved = TRUE;
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if (event.ButtonDown()) {
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int sx, sy;
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wxPoint pos;
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wxString lnk;
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ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
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pos = event.GetPosition();
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if (m_Cell)
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m_Cell -> OnMouseClick(this, sx + pos.x, sy + pos.y, event.ButtonDown(1), event.ButtonDown(2), event.ButtonDown(3));
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}
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}
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void wxHtmlWindow::OnIdle(wxIdleEvent& event)
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{
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static wxCursor cur_hand(wxCURSOR_HAND), cur_arrow(wxCURSOR_ARROW);
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if (m_tmpMouseMoved && (m_Cell != NULL)) {
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int sx, sy;
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int x, y;
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wxString lnk;
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ViewStart(&sx, &sy); sx *= wxHTML_SCROLL_STEP; sy *= wxHTML_SCROLL_STEP;
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wxGetMousePosition(&x, &y);
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ScreenToClient(&x, &y);
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lnk = m_Cell -> GetLink(sx + x, sy + y);
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if (lnk != m_tmpLastLink) {
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if (lnk == wxEmptyString) {
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SetCursor(cur_arrow);
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if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(wxEmptyString, m_RelatedStatusBar);
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}
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else {
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SetCursor(cur_hand);
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if (m_RelatedStatusBar != -1) m_RelatedFrame -> SetStatusText(lnk, m_RelatedStatusBar);
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}
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m_tmpLastLink = lnk;
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}
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m_tmpMouseMoved = FALSE;
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}
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}
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
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BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
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EVT_SIZE(wxHtmlWindow::OnSize)
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EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
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EVT_MOTION(wxHtmlWindow::OnMouseEvent)
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EVT_IDLE(wxHtmlWindow::OnIdle)
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EVT_KEY_DOWN(wxHtmlWindow::OnKeyDown)
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END_EVENT_TABLE()
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// A module to allow initialization/cleanup
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// without calling these functions from app.cpp or from
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// the user's application.
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class wxHtmlWinModule: public wxModule
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{
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DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
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public:
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wxHtmlWinModule() : wxModule() {}
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bool OnInit() { return TRUE; }
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void OnExit() { wxHtmlWindow::CleanUpStatics(); }
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};
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule)
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|
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///// default mod handlers are forced there:
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FORCE_LINK(mod_layout)
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|
FORCE_LINK(mod_fonts)
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FORCE_LINK(mod_image)
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|
FORCE_LINK(mod_list)
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|
FORCE_LINK(mod_pre)
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FORCE_LINK(mod_hline)
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FORCE_LINK(mod_links)
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|
FORCE_LINK(mod_tables)
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#endif
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