X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/daa616fca06ce77df132d31eda6d1f829b449aad..5aac6f3f9563d5a56470982cc11c35c81f555671:/src/html/htmlcell.cpp diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index cd927aa55c..01d92107bd 100644 --- a/src/html/htmlcell.cpp +++ b/src/html/htmlcell.cpp @@ -1,91 +1,241 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: htmlcell.cpp +// Name: src/html/htmlcell.cpp // Purpose: wxHtmlCell - basic element of HTML output // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation -#endif - #include "wx/wxprec.h" -#include "wx/defs.h" +#ifdef __BORLANDC__ + #pragma hdrstop +#endif #if wxUSE_HTML && wxUSE_STREAMS -#ifdef __BORDLANDC__ -#pragma hdrstop -#endif - -#ifndef WXPRECOMP -#include "wx/wx.h" +#ifndef WX_PRECOMP + #include "wx/dynarray.h" + #include "wx/brush.h" + #include "wx/colour.h" + #include "wx/dc.h" + #include "wx/settings.h" + #include "wx/module.h" + #include "wx/wxcrtvararg.h" #endif #include "wx/html/htmlcell.h" #include "wx/html/htmlwin.h" + #include +//----------------------------------------------------------------------------- +// Helper classes +//----------------------------------------------------------------------------- + +void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell, + const wxPoint& toPos, const wxHtmlCell *toCell) +{ + m_fromCell = fromCell; + m_toCell = toCell; + m_fromPos = fromPos; + m_toPos = toPos; +} + +void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell) +{ + wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition; + wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition; + if ( toCell ) + { + p2.x += toCell->GetWidth(); + p2.y += toCell->GetHeight(); + } + Set(p1, fromCell, p2, toCell); +} + +wxColour +wxDefaultHtmlRenderingStyle:: +GetSelectedTextColour(const wxColour& WXUNUSED(clr)) +{ + return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT); +} + +wxColour +wxDefaultHtmlRenderingStyle:: +GetSelectedTextBgColour(const wxColour& WXUNUSED(clr)) +{ + return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT); +} + //----------------------------------------------------------------------------- // wxHtmlCell //----------------------------------------------------------------------------- -wxHtmlCell::wxHtmlCell() : wxObject() +IMPLEMENT_ABSTRACT_CLASS(wxHtmlCell, wxObject) + +wxHtmlCell::wxHtmlCell() : wxObject() { - m_Next = NULL; - m_Parent = NULL; - m_Width = m_Height = m_Descent = 0; - m_CanLiveOnPagebreak = TRUE; + m_Next = NULL; + m_Parent = NULL; + m_Width = m_Height = m_Descent = 0; + m_ScriptMode = wxHTML_SCRIPT_NORMAL; // or mode + m_ScriptBaseline = 0; // or baseline + m_CanLiveOnPagebreak = true; m_Link = NULL; } -wxHtmlCell::~wxHtmlCell() +wxHtmlCell::~wxHtmlCell() +{ + delete m_Link; +} + +// Update the descent value when whe are in a or . +// prevbase is the parent base +void wxHtmlCell::SetScriptMode(wxHtmlScriptMode mode, long previousBase) { - if (m_Link) delete m_Link; - if (m_Next) delete m_Next; + m_ScriptMode = mode; + + if (mode == wxHTML_SCRIPT_SUP) + m_ScriptBaseline = previousBase - (m_Height + 1) / 2; + else if (mode == wxHTML_SCRIPT_SUB) + m_ScriptBaseline = previousBase + (m_Height + 1) / 6; + else + m_ScriptBaseline = 0; + + m_Descent += m_ScriptBaseline; } +#if WXWIN_COMPATIBILITY_2_6 + +struct wxHtmlCellOnMouseClickCompatHelper; -void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y, - const wxMouseEvent& event) +static wxHtmlCellOnMouseClickCompatHelper *gs_helperOnMouseClick = NULL; + +// helper for routing calls to new ProcessMouseClick() method to deprecated +// OnMouseClick() method +struct wxHtmlCellOnMouseClickCompatHelper { - wxHtmlLinkInfo *lnk = GetLink(x, y); - if (lnk != NULL) + wxHtmlCellOnMouseClickCompatHelper(wxHtmlWindowInterface *window_, + const wxPoint& pos_, + const wxMouseEvent& event_) + : window(window_), pos(pos_), event(event_), retval(false) + { + } + + bool CallOnMouseClick(wxHtmlCell *cell) + { + wxHtmlCellOnMouseClickCompatHelper *oldHelper = gs_helperOnMouseClick; + gs_helperOnMouseClick = this; + cell->OnMouseClick + ( + window ? window->GetHTMLWindow() : NULL, + pos.x, pos.y, + event + ); + gs_helperOnMouseClick = oldHelper; + return retval; + } + + wxHtmlWindowInterface *window; + const wxPoint& pos; + const wxMouseEvent& event; + bool retval; +}; +#endif // WXWIN_COMPATIBILITY_2_6 + +bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window, + const wxPoint& pos, + const wxMouseEvent& event) +{ + wxCHECK_MSG( window, false, _T("window interface must be provided") ); + +#if WXWIN_COMPATIBILITY_2_6 + // NB: this hack puts the body of ProcessMouseClick() into OnMouseClick() + // (for which it has to pass the arguments and return value via a + // helper variable because these two methods have different + // signatures), so that old code overriding OnMouseClick will continue + // to work + wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event); + return compat.CallOnMouseClick(this); +} + +void wxHtmlCell::OnMouseClick(wxWindow *, int, int, const wxMouseEvent& event) +{ + wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") ); + wxHtmlWindowInterface *window = gs_helperOnMouseClick->window; + const wxPoint& pos = gs_helperOnMouseClick->pos; +#endif // WXWIN_COMPATIBILITY_2_6 + + wxHtmlLinkInfo *lnk = GetLink(pos.x, pos.y); + bool retval = false; + + if (lnk) { wxHtmlLinkInfo lnk2(*lnk); lnk2.SetEvent(&event); lnk2.SetHtmlCell(this); - ((wxHtmlWindow*)parent)->OnLinkClicked(lnk2); - // note : this overcasting is legal because parent is *always* wxHtmlWindow + + window->OnHTMLLinkClicked(lnk2); + retval = true; } -} +#if WXWIN_COMPATIBILITY_2_6 + gs_helperOnMouseClick->retval = retval; +#else + return retval; +#endif // WXWIN_COMPATIBILITY_2_6 +} +#if WXWIN_COMPATIBILITY_2_6 +wxCursor wxHtmlCell::GetCursor() const +{ + return wxNullCursor; +} +#endif // WXWIN_COMPATIBILITY_2_6 -bool wxHtmlCell::AdjustPagebreak(int *pagebreak) const +wxCursor wxHtmlCell::GetMouseCursor(wxHtmlWindowInterface *window) const { - if ((!m_CanLiveOnPagebreak) && - m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak) - { - *pagebreak = m_PosY; - if (m_Next != NULL) m_Next->AdjustPagebreak(pagebreak); - return TRUE; +#if WXWIN_COMPATIBILITY_2_6 + // NB: Older versions of wx used GetCursor() virtual method in place of + // GetMouseCursor(interface). This code ensures that user code that + // overriden GetCursor() continues to work. The trick is that the base + // wxHtmlCell::GetCursor() method simply returns wxNullCursor, so we + // know that GetCursor() was overriden iff it returns valid cursor. + wxCursor cur = GetCursor(); + if (cur.Ok()) + return cur; +#endif // WXWIN_COMPATIBILITY_2_6 + + if ( GetLink() ) + { + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Link); + } + else + { + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Default); } - - else +} + + +bool wxHtmlCell::AdjustPagebreak(int *pagebreak, + wxArrayInt& WXUNUSED(known_pagebreaks)) const +{ + if ((!m_CanLiveOnPagebreak) && + m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak) { - if (m_Next != NULL) return m_Next->AdjustPagebreak(pagebreak); - else return FALSE; + *pagebreak = m_PosY; + return true; } + + return false; } -void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) +void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) { if (m_Link) delete m_Link; m_Link = NULL; @@ -94,53 +244,476 @@ void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) } - -void wxHtmlCell::Layout(int w) +void wxHtmlCell::Layout(int WXUNUSED(w)) { - SetPos(0, 0); - if (m_Next) m_Next->Layout(w); + SetPos(0, 0); } -void wxHtmlCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) + +const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const { - if (m_Next) m_Next->Draw(dc, x, y, view_y1, view_y2); + return NULL; } - -void wxHtmlCell::DrawInvisible(wxDC& dc, int x, int y) +wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y, + unsigned flags) const { - if (m_Next) m_Next->DrawInvisible(dc, x, y); + if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height ) + { + return wxConstCast(this, wxHtmlCell); + } + else + { + if ((flags & wxHTML_FIND_NEAREST_AFTER) && + (y < 0 || (y < 0+m_Height && x < 0+m_Width))) + return wxConstCast(this, wxHtmlCell); + else if ((flags & wxHTML_FIND_NEAREST_BEFORE) && + (y >= 0+m_Height || (y >= 0 && x >= 0))) + return wxConstCast(this, wxHtmlCell); + else + return NULL; + } } +wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const +{ + wxPoint p(m_PosX, m_PosY); + for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell; + parent = parent->m_Parent) + { + p.x += parent->m_PosX; + p.y += parent->m_PosY; + } + return p; +} -const wxHtmlCell* wxHtmlCell::Find(int condition, const void* param) const +wxHtmlCell *wxHtmlCell::GetRootCell() const { - if (m_Next) return m_Next->Find(condition, param); - else return NULL; + wxHtmlCell *c = wxConstCast(this, wxHtmlCell); + while ( c->m_Parent ) + c = c->m_Parent; + return c; } +unsigned wxHtmlCell::GetDepth() const +{ + unsigned d = 0; + for (wxHtmlCell *p = m_Parent; p; p = p->m_Parent) + d++; + return d; +} + +bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const +{ + const wxHtmlCell *c1 = this; + const wxHtmlCell *c2 = cell; + unsigned d1 = GetDepth(); + unsigned d2 = cell->GetDepth(); + + if ( d1 > d2 ) + for (; d1 != d2; d1-- ) + c1 = c1->m_Parent; + else if ( d1 < d2 ) + for (; d1 != d2; d2-- ) + c2 = c2->m_Parent; + + if ( cell == this ) + return true; + + while ( c1 && c2 ) + { + if ( c1->m_Parent == c2->m_Parent ) + { + while ( c1 ) + { + if ( c1 == c2 ) + return true; + c1 = c1->GetNext(); + } + return false; + } + else + { + c1 = c1->m_Parent; + c2 = c2->m_Parent; + } + } + + wxFAIL_MSG(_T("Cells are in different trees")); + return false; +} //----------------------------------------------------------------------------- // wxHtmlWordCell //----------------------------------------------------------------------------- -wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell() +IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell) + +wxHtmlWordCell::wxHtmlWordCell(const wxString& word, const wxDC& dc) : wxHtmlCell() { m_Word = word; - dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent); - SetCanLiveOnPagebreak(FALSE); + wxCoord w, h, d; + dc.GetTextExtent(m_Word, &w, &h, &d); + m_Width = w; + m_Height = h; + m_Descent = d; + SetCanLiveOnPagebreak(false); + m_allowLinebreak = true; +} + +void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell) +{ + if ( cell && m_Parent == cell->m_Parent && + !wxIsspace(cell->m_Word.Last()) && !wxIsspace(m_Word[0u]) ) + { + m_allowLinebreak = false; + } +} + +// Splits m_Word into up to three parts according to selection, returns +// substring before, in and after selection and the points (in relative coords) +// where s2 and s3 start: +void wxHtmlWordCell::Split(const wxDC& dc, + const wxPoint& selFrom, const wxPoint& selTo, + unsigned& pos1, unsigned& pos2) const +{ + wxPoint pt1 = (selFrom == wxDefaultPosition) ? + wxDefaultPosition : selFrom - GetAbsPos(); + wxPoint pt2 = (selTo == wxDefaultPosition) ? + wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos(); + + // if the selection is entirely within this cell, make sure pt1 < pt2 in + // order to make the rest of this function simpler: + if ( selFrom != wxDefaultPosition && selTo != wxDefaultPosition && + selFrom.x > selTo.x ) + { + wxPoint tmp = pt1; + pt1 = pt2; + pt2 = tmp; + } + + unsigned len = m_Word.length(); + unsigned i = 0; + pos1 = 0; + + // adjust for cases when the start/end position is completely + // outside the cell: + if ( pt1.y < 0 ) + pt1.x = 0; + if ( pt2.y >= m_Height ) + pt2.x = m_Width; + + // before selection: + // (include character under caret only if in first half of width) +#ifdef __WXMAC__ + // implementation using PartialExtents to support fractional widths + wxArrayInt widths ; + dc.GetPartialTextExtents(m_Word,widths) ; + while( i < len && pt1.x >= widths[i] ) + i++ ; + if ( i < len ) + { + int charW = (i > 0) ? widths[i] - widths[i-1] : widths[i]; + if ( widths[i] - pt1.x < charW/2 ) + i++; + } +#else // !__WXMAC__ + wxCoord charW, charH; + while ( pt1.x > 0 && i < len ) + { + dc.GetTextExtent(m_Word[i], &charW, &charH); + pt1.x -= charW; + if ( pt1.x >= -charW/2 ) + { + pos1 += charW; + i++; + } + } +#endif // __WXMAC__/!__WXMAC__ + + // in selection: + // (include character under caret only if in first half of width) + unsigned j = i; +#ifdef __WXMAC__ + while( j < len && pt2.x >= widths[j] ) + j++ ; + if ( j < len ) + { + int charW = (j > 0) ? widths[j] - widths[j-1] : widths[j]; + if ( widths[j] - pt2.x < charW/2 ) + j++; + } +#else // !__WXMAC__ + pos2 = pos1; + pt2.x -= pos2; + while ( pt2.x > 0 && j < len ) + { + dc.GetTextExtent(m_Word[j], &charW, &charH); + pt2.x -= charW; + if ( pt2.x >= -charW/2 ) + { + pos2 += charW; + j++; + } + } +#endif // __WXMAC__/!__WXMAC__ + + pos1 = i; + pos2 = j; + + wxASSERT( pos2 >= pos1 ); +} + +void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const +{ + unsigned p1, p2; + + Split(dc, + this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition, + this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition, + p1, p2); + + wxPoint p(0, m_Word.length()); + + if ( this == s->GetFromCell() ) + p.x = p1; // selection starts here + if ( this == s->GetToCell() ) + p.y = p2; // selection ends here + + if ( this == s->GetFromCell() ) + s->SetFromPrivPos(p); + if ( this == s->GetToCell() ) + s->SetToPrivPos(p); +} + + +static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info, + bool toSelection) +{ + wxColour fg = info.GetState().GetFgColour(); + wxColour bg = info.GetState().GetBgColour(); + + if ( toSelection ) + { + dc.SetBackgroundMode(wxBRUSHSTYLE_SOLID); + dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg)); + dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg)); + dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg), + wxBRUSHSTYLE_SOLID)); + } + else + { + dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT); + dc.SetTextForeground(fg); + dc.SetTextBackground(bg); + dc.SetBackground(wxBrush(bg, wxBRUSHSTYLE_SOLID)); + } } +void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, + int WXUNUSED(view_y1), int WXUNUSED(view_y2), + wxHtmlRenderingInfo& info) +{ +#if 0 // useful for debugging + dc.SetPen(*wxBLACK_PEN); + dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width /* VZ: +1? */ ,m_Height); +#endif + + bool drawSelectionAfterCell = false; + + if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING ) + { + // Selection changing, we must draw the word piecewise: + wxHtmlSelection *s = info.GetSelection(); + wxString txt; + int w, h; + int ofs = 0; + + wxPoint priv = (this == s->GetFromCell()) ? + s->GetFromPrivPos() : s->GetToPrivPos(); + + // NB: this is quite a hack: in order to compute selection boundaries + // (in word's characters) we must know current font, which is only + // possible inside rendering code. Therefore we update the + // information here and store it in wxHtmlSelection so that + // ConvertToText can use it later: + if ( priv == wxDefaultPosition ) + { + SetSelectionPrivPos(dc, s); + priv = (this == s->GetFromCell()) ? + s->GetFromPrivPos() : s->GetToPrivPos(); + } + + int part1 = priv.x; + int part2 = priv.y; + + if ( part1 > 0 ) + { + txt = m_Word.Mid(0, part1); + dc.DrawText(txt, x + m_PosX, y + m_PosY); + dc.GetTextExtent(txt, &w, &h); + ofs += w; + } + + SwitchSelState(dc, info, true); + + txt = m_Word.Mid(part1, part2-part1); + dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY); + + if ( (size_t)part2 < m_Word.length() ) + { + dc.GetTextExtent(txt, &w, &h); + ofs += w; + SwitchSelState(dc, info, false); + txt = m_Word.Mid(part2); + dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY); + } + else + drawSelectionAfterCell = true; + } + else + { + wxHtmlSelectionState selstate = info.GetState().GetSelectionState(); + // Not changing selection state, draw the word in single mode: + if ( selstate != wxHTML_SEL_OUT && + dc.GetBackgroundMode() != wxBRUSHSTYLE_SOLID ) + { + SwitchSelState(dc, info, true); + } + else if ( selstate == wxHTML_SEL_OUT && + dc.GetBackgroundMode() == wxBRUSHSTYLE_SOLID ) + { + SwitchSelState(dc, info, false); + } + dc.DrawText(m_Word, x + m_PosX, y + m_PosY); + drawSelectionAfterCell = (selstate != wxHTML_SEL_OUT); + } + + // NB: If the text is justified then there is usually some free space + // between adjacent cells and drawing the selection only onto cells + // would result in ugly unselected spaces. The code below detects + // this special case and renders the selection *outside* the sell, + // too. + if ( m_Parent->GetAlignHor() == wxHTML_ALIGN_JUSTIFY && + drawSelectionAfterCell ) + { + wxHtmlCell *nextCell = m_Next; + while ( nextCell && nextCell->IsFormattingCell() ) + nextCell = nextCell->GetNext(); + if ( nextCell ) + { + int nextX = nextCell->GetPosX(); + if ( m_PosX + m_Width < nextX ) + { + dc.SetBrush(dc.GetBackground()); + dc.SetPen(*wxTRANSPARENT_PEN); + dc.DrawRectangle(x + m_PosX + m_Width, y + m_PosY, + nextX - m_PosX - m_Width, m_Height); + } + } + } +} + +wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const +{ + if ( !GetLink() ) + { + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text); + } + else + { + return wxHtmlCell::GetMouseCursor(window); + } +} + +wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const +{ + if ( s && (this == s->GetFromCell() || this == s->GetToCell()) ) + { + wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos() + : s->GetToPrivPos(); + + // VZ: we may be called before we had a chance to re-render ourselves + // and in this case GetFrom/ToPrivPos() is not set yet -- assume + // that this only happens in case of a double/triple click (which + // seems to be the case now) and so it makes sense to select the + // entire contents of the cell in this case + // + // TODO: but this really needs to be fixed in some better way later... + if ( priv != wxDefaultPosition ) + { + const int part1 = priv.x; + const int part2 = priv.y; + if ( part1 == part2 ) + return wxEmptyString; + return GetPartAsText(part1, part2); + } + //else: return the whole word below + } + + return GetAllAsText(); +} + +wxString wxHtmlWordWithTabsCell::GetAllAsText() const +{ + return m_wordOrig; +} -void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) +wxString wxHtmlWordWithTabsCell::GetPartAsText(int begin, int end) const { - dc.DrawText(m_Word, x + m_PosX, y + m_PosY); - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); + // NB: The 'begin' and 'end' positions are in the _displayed_ text + // (stored in m_Word) and not in the text with tabs that should + // be copied to clipboard (m_wordOrig). + // + // NB: Because selection is performed on displayed text, it's possible + // to select e.g. "half of TAB character" -- IOW, 'begin' and 'end' + // may be in the middle of TAB character expansion into ' 's. In this + // case, we copy the TAB character to clipboard once. + + wxASSERT( begin < end ); + + const unsigned SPACES_PER_TAB = 8; + + wxString sel; + + int pos = 0; + wxString::const_iterator i = m_wordOrig.begin(); + + // find the beginning of text to copy: + for ( ; pos < begin; ++i ) + { + if ( *i == '\t' ) + { + pos += 8 - (m_linepos + pos) % SPACES_PER_TAB; + if ( pos >= begin ) + { + sel += '\t'; + } + } + else + { + ++pos; + } + } + + // copy the content until we reach 'end': + for ( ; pos < end; ++i ) + { + const wxChar c = *i; + sel += c; + + if ( c == '\t' ) + pos += 8 - (m_linepos + pos) % SPACES_PER_TAB; + else + ++pos; + } + + return sel; } @@ -149,26 +722,34 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) // wxHtmlContainerCell //----------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlContainerCell, wxHtmlCell) wxHtmlContainerCell::wxHtmlContainerCell(wxHtmlContainerCell *parent) : wxHtmlCell() { m_Cells = m_LastCell = NULL; m_Parent = parent; + m_MaxTotalWidth = 0; if (m_Parent) m_Parent->InsertCell(this); m_AlignHor = wxHTML_ALIGN_LEFT; m_AlignVer = wxHTML_ALIGN_BOTTOM; m_IndentLeft = m_IndentRight = m_IndentTop = m_IndentBottom = 0; m_WidthFloat = 100; m_WidthFloatUnits = wxHTML_UNITS_PERCENT; - m_UseBkColour = FALSE; - m_UseBorder = FALSE; + m_UseBkColour = false; + m_UseBorder = false; m_MinHeight = 0; m_MinHeightAlign = wxHTML_ALIGN_TOP; m_LastLayout = -1; } -wxHtmlContainerCell::~wxHtmlContainerCell() +wxHtmlContainerCell::~wxHtmlContainerCell() { - if (m_Cells) delete m_Cells; + wxHtmlCell *cell = m_Cells; + while ( cell ) + { + wxHtmlCell *cellNext = cell->GetNext(); + delete cell; + cell = cellNext; + } } @@ -199,7 +780,7 @@ int wxHtmlContainerCell::GetIndent(int ind) const int wxHtmlContainerCell::GetIndentUnits(int ind) const { - bool p = FALSE; + bool p = false; if (ind & wxHTML_INDENT_LEFT) p = m_IndentLeft < 0; else if (ind & wxHTML_INDENT_RIGHT) p = m_IndentRight < 0; else if (ind & wxHTML_INDENT_TOP) p = m_IndentTop < 0; @@ -209,45 +790,58 @@ int wxHtmlContainerCell::GetIndentUnits(int ind) const } - -bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak) const +bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, + wxArrayInt& known_pagebreaks) const { - if (!m_CanLiveOnPagebreak) - return wxHtmlCell::AdjustPagebreak(pagebreak); + if (!m_CanLiveOnPagebreak) + return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks); - else - { - wxHtmlCell *c = GetFirstCell(); - bool rt = FALSE; - int pbrk = *pagebreak - m_PosY; + wxHtmlCell *c = GetFirstChild(); + bool rt = false; + int pbrk = *pagebreak - m_PosY; - while (c) - { - if (c->AdjustPagebreak(&pbrk)) rt = TRUE; - c = c->GetNext(); - } - if (rt) *pagebreak = pbrk + m_PosY; - return rt; + while (c) + { + if (c->AdjustPagebreak(&pbrk, known_pagebreaks)) + rt = true; + c = c->GetNext(); } + if (rt) + *pagebreak = pbrk + m_PosY; + return rt; } - void wxHtmlContainerCell::Layout(int w) { - if (m_LastLayout == w) - { - wxHtmlCell::Layout(w); + wxHtmlCell::Layout(w); + + if (m_LastLayout == w) return; - } + m_LastLayout = w; + + // VS: Any attempt to layout with negative or zero width leads to hell, + // but we can't ignore such attempts completely, since it sometimes + // happen (e.g. when trying how small a table can be). The best thing we + // can do is to set the width of child cells to zero + if (w < 1) + { + m_Width = 0; + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) + cell->Layout(0); + // this does two things: it recursively calls this code on all + // child contrainers and resets children's position to (0,0) + return; + } - wxHtmlCell *cell = m_Cells, *line = m_Cells; + wxHtmlCell *nextCell; long xpos = 0, ypos = m_IndentTop; int xdelta = 0, ybasicpos = 0, ydiff; - int s_width, s_indent; + int s_width, nextWordWidth, s_indent; int ysizeup = 0, ysizedown = 0; int MaxLineWidth = 0; - int xcnt = 0; + int curLineWidth = 0; + m_MaxTotalWidth = 0; /* @@ -256,22 +850,23 @@ void wxHtmlContainerCell::Layout(int w) */ - if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT) + if (m_WidthFloatUnits == wxHTML_UNITS_PERCENT) { if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100; else m_Width = m_WidthFloat * w / 100; } - else + else { if (m_WidthFloat < 0) m_Width = w + m_WidthFloat; else m_Width = m_WidthFloat; } - if (m_Cells) + if (m_Cells) { int l = (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft; int r = (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight; - m_Cells->Layout(m_Width - (l + r)); + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) + cell->Layout(m_Width - (l + r)); } /* @@ -285,10 +880,12 @@ void wxHtmlContainerCell::Layout(int w) s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight); // my own layouting: - while (cell != NULL) + wxHtmlCell *cell = m_Cells, + *line = m_Cells; + while (cell != NULL) { - switch (m_AlignVer) - { + switch (m_AlignVer) + { case wxHTML_ALIGN_TOP : ybasicpos = 0; break; case wxHTML_ALIGN_BOTTOM : ybasicpos = - cell->GetHeight(); break; case wxHTML_ALIGN_CENTER : ybasicpos = - cell->GetHeight() / 2; break; @@ -298,59 +895,155 @@ void wxHtmlContainerCell::Layout(int w) if (cell->GetDescent() + ydiff > ysizedown) ysizedown = cell->GetDescent() + ydiff; if (ybasicpos + cell->GetDescent() < -ysizeup) ysizeup = - (ybasicpos + cell->GetDescent()); + // layout nonbreakable run of cells: cell->SetPos(xpos, ybasicpos + cell->GetDescent()); xpos += cell->GetWidth(); + if (!cell->IsTerminalCell()) + { + // Container cell indicates new line + if (curLineWidth > m_MaxTotalWidth) + m_MaxTotalWidth = curLineWidth; + + if (wxMax(cell->GetWidth(), cell->GetMaxTotalWidth()) > m_MaxTotalWidth) + m_MaxTotalWidth = cell->GetMaxTotalWidth(); + curLineWidth = 0; + } + else + // Normal cell, add maximum cell width to line width + curLineWidth += cell->GetMaxTotalWidth(); + cell = cell->GetNext(); - xcnt++; - // force new line if occured: - if ((cell == NULL) || (xpos + cell->GetWidth() > s_width)) - { + // compute length of the next word that would be added: + nextWordWidth = 0; + if (cell) + { + nextCell = cell; + do + { + nextWordWidth += nextCell->GetWidth(); + nextCell = nextCell->GetNext(); + } while (nextCell && !nextCell->IsLinebreakAllowed()); + } + + // force new line if occurred: + if ((cell == NULL) || + (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed())) + { if (xpos > MaxLineWidth) MaxLineWidth = xpos; if (ysizeup < 0) ysizeup = 0; if (ysizedown < 0) ysizedown = 0; switch (m_AlignHor) { - case wxHTML_ALIGN_LEFT : - case wxHTML_ALIGN_JUSTIFY : - xdelta = 0; + case wxHTML_ALIGN_LEFT : + case wxHTML_ALIGN_JUSTIFY : + xdelta = 0; break; - case wxHTML_ALIGN_RIGHT : - xdelta = 0 + (s_width - xpos); + case wxHTML_ALIGN_RIGHT : + xdelta = 0 + (s_width - xpos); break; - case wxHTML_ALIGN_CENTER : - xdelta = 0 + (s_width - xpos) / 2; + case wxHTML_ALIGN_CENTER : + xdelta = 0 + (s_width - xpos) / 2; break; } if (xdelta < 0) xdelta = 0; xdelta += s_indent; ypos += ysizeup; - + if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL) - while (line != cell) - { - line->SetPos(line->GetPosX() + xdelta, + { + while (line != cell) + { + line->SetPos(line->GetPosX() + xdelta, ypos + line->GetPosY()); line = line->GetNext(); } - else - { - int counter = 0; - int step = (s_width - xpos); - if (step < 0) step = 0; - xcnt--; - if (xcnt > 0) while (line != cell) - { - line->SetPos(line->GetPosX() + s_indent + - (counter++ * step / xcnt), - ypos + line->GetPosY()); - line = line->GetNext(); + } + else // align == justify + { + // we have to distribute the extra horz space between the cells + // on this line + + // an added complication is that some cells have fixed size and + // shouldn't get any increment (it so happens that these cells + // also don't allow line break on them which provides with an + // easy way to test for this) -- and neither should the cells + // adjacent to them as this could result in a visible space + // between two cells separated by, e.g. font change, cell which + // is wrong + + int step = s_width - xpos; + if ( step > 0 ) + { + // first count the cells which will get extra space + int total = -1; + + const wxHtmlCell *c; + if ( line != cell ) + { + for ( c = line; c != cell; c = c->GetNext() ) + { + if ( c->IsLinebreakAllowed() ) + { + total++; + } + } + } + + // and now extra space to those cells which merit it + if ( total ) + { + // first visible cell on line is not moved: + while (line !=cell && !line->IsLinebreakAllowed()) + { + line->SetPos(line->GetPosX() + s_indent, + line->GetPosY() + ypos); + line = line->GetNext(); + } + + if (line != cell) + { + line->SetPos(line->GetPosX() + s_indent, + line->GetPosY() + ypos); + + line = line->GetNext(); + } + + for ( int n = 0; line != cell; line = line->GetNext() ) + { + if ( line->IsLinebreakAllowed() ) + { + // offset the next cell relative to this one + // thus increasing our size + n++; + } + + line->SetPos(line->GetPosX() + s_indent + + ((n * step) / total), + line->GetPosY() + ypos); + } + } + else + { + // this will cause the code to enter "else branch" below: + step = 0; + } + } + // else branch: + if ( step <= 0 ) // no extra space to distribute + { + // just set the indent properly + while (line != cell) + { + line->SetPos(line->GetPosX() + s_indent, + line->GetPosY() + ypos); + line = line->GetNext(); + } } - xcnt++; } ypos += ysizedown; - xpos = xcnt = 0; + xpos = 0; ysizeup = ysizedown = 0; line = cell; } @@ -359,15 +1052,15 @@ void wxHtmlContainerCell::Layout(int w) // setup height & width, depending on container layout: m_Height = ypos + (ysizedown + ysizeup) + m_IndentBottom; - if (m_Height < m_MinHeight) + if (m_Height < m_MinHeight) { - if (m_MinHeightAlign != wxHTML_ALIGN_TOP) - { + if (m_MinHeightAlign != wxHTML_ALIGN_TOP) + { int diff = m_MinHeight - m_Height; if (m_MinHeightAlign == wxHTML_ALIGN_CENTER) diff /= 2; cell = m_Cells; - while (cell) - { + while (cell) + { cell->SetPos(cell->GetPosX(), cell->GetPosY() + diff); cell = cell->GetNext(); } @@ -375,84 +1068,137 @@ void wxHtmlContainerCell::Layout(int w) m_Height = m_MinHeight; } + if (curLineWidth > m_MaxTotalWidth) + m_MaxTotalWidth = curLineWidth; + + m_MaxTotalWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight); MaxLineWidth += s_indent + ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight); if (m_Width < MaxLineWidth) m_Width = MaxLineWidth; +} - m_LastLayout = w; - - wxHtmlCell::Layout(w); +void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info, + wxHtmlCell *cell) const +{ + wxHtmlSelection *s = info.GetSelection(); + if (!s) return; + if (s->GetFromCell() == cell || s->GetToCell() == cell) + { + info.GetState().SetSelectionState(wxHTML_SEL_CHANGING); + } } +void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info, + wxHtmlCell *cell) const +{ + wxHtmlSelection *s = info.GetSelection(); + if (!s) return; + if (s->GetToCell() == cell) + info.GetState().SetSelectionState(wxHTML_SEL_OUT); + else if (s->GetFromCell() == cell) + info.GetState().SetSelectionState(wxHTML_SEL_IN); +} #define mMin(a, b) (((a) < (b)) ? (a) : (b)) #define mMax(a, b) (((a) < (b)) ? (b) : (a)) -void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) +void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, + wxHtmlRenderingInfo& info) { - // container visible, draw it: - if ((y + m_PosY < view_y2) && (y + m_PosY + m_Height > view_y1)) +#if 0 // useful for debugging + dc.SetPen(*wxRED_PEN); + dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height); +#endif + + int xlocal = x + m_PosX; + int ylocal = y + m_PosY; + + if (m_UseBkColour) { + wxBrush myb = wxBrush(m_BkColour, wxBRUSHSTYLE_SOLID); - if (m_UseBkColour) - { - wxBrush myb = wxBrush(m_BkColour, wxSOLID); + int real_y1 = mMax(ylocal, view_y1); + int real_y2 = mMin(ylocal + m_Height - 1, view_y2); - int real_y1 = mMax(y + m_PosY, view_y1); - int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2); + dc.SetBrush(myb); + dc.SetPen(*wxTRANSPARENT_PEN); + dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1); + } - dc.SetBrush(myb); - dc.SetPen(*wxTRANSPARENT_PEN); - dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1); + if (m_UseBorder) + { + wxPen mypen1(m_BorderColour1, 1, wxPENSTYLE_SOLID); + wxPen mypen2(m_BorderColour2, 1, wxPENSTYLE_SOLID); + + dc.SetPen(mypen1); + dc.DrawLine(xlocal, ylocal, xlocal, ylocal + m_Height - 1); + dc.DrawLine(xlocal, ylocal, xlocal + m_Width, ylocal); + dc.SetPen(mypen2); + dc.DrawLine(xlocal + m_Width - 1, ylocal, xlocal + m_Width - 1, ylocal + m_Height - 1); + dc.DrawLine(xlocal, ylocal + m_Height - 1, xlocal + m_Width, ylocal + m_Height - 1); + } + + if (m_Cells) + { + // draw container's contents: + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) + { + + // optimize drawing: don't render off-screen content: + if ((ylocal + cell->GetPosY() <= view_y2) && + (ylocal + cell->GetPosY() + cell->GetHeight() > view_y1)) + { + // the cell is visible, draw it: + UpdateRenderingStatePre(info, cell); + cell->Draw(dc, + xlocal, ylocal, view_y1, view_y2, + info); + UpdateRenderingStatePost(info, cell); + } + else + { + // the cell is off-screen, proceed with font+color+etc. + // changes only: + cell->DrawInvisible(dc, xlocal, ylocal, info); + } } + } +} - if (m_UseBorder) - { - wxPen mypen1(m_BorderColour1, 1, wxSOLID); - wxPen mypen2(m_BorderColour2, 1, wxSOLID); - dc.SetPen(mypen1); - dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX, y + m_PosY + m_Height - 1); - dc.DrawLine(x + m_PosX, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY); - dc.SetPen(mypen2); - dc.DrawLine(x + m_PosX + m_Width - 1, y + m_PosY, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1); - dc.DrawLine(x + m_PosX, y + m_PosY + m_Height - 1, x + m_PosX + m_Width - 1, y + m_PosY + m_Height - 1); - } - if (m_Cells) m_Cells->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2); - } - // container invisible, just proceed font+color changing: - else +void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y, + wxHtmlRenderingInfo& info) +{ + if (m_Cells) { - if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY); + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) + { + UpdateRenderingStatePre(info, cell); + cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info); + UpdateRenderingStatePost(info, cell); + } } - - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); } - -void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y) +wxColour wxHtmlContainerCell::GetBackgroundColour() { - if (m_Cells) m_Cells->DrawInvisible(dc, x + m_PosX, y + m_PosY); - wxHtmlCell::DrawInvisible(dc, x, y); + if (m_UseBkColour) + return m_BkColour; + else + return wxNullColour; } wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const { - wxHtmlCell *c = m_Cells; - int cx, cy, cw, ch; + wxHtmlCell *cell = FindCellByPos(x, y); - while (c) - { - cx = c->GetPosX(), cy = c->GetPosY(); - cw = c->GetWidth(), ch = c->GetHeight(); - if ((x >= cx) && (x < cx + cw) && (y >= cy) && (y < cy + ch)) - return c->GetLink(x - cx, y - cy); - c = c->GetNext(); - } - return NULL; + // VZ: I don't know if we should pass absolute or relative coords to + // wxHtmlCell::GetLink()? As the base class version just ignores them + // anyhow, it hardly matters right now but should still be clarified + return cell ? cell->GetLink(x, y) : NULL; } @@ -460,7 +1206,7 @@ wxHtmlLinkInfo *wxHtmlContainerCell::GetLink(int x, int y) const void wxHtmlContainerCell::InsertCell(wxHtmlCell *f) { if (!m_Cells) m_Cells = m_LastCell = f; - else + else { m_LastCell->SetNext(f); m_LastCell = f; @@ -474,7 +1220,7 @@ void wxHtmlContainerCell::InsertCell(wxHtmlCell *f) void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag) { - if (tag.HasParam(wxT("ALIGN"))) + if (tag.HasParam(wxT("ALIGN"))) { wxString alg = tag.GetParam(wxT("ALIGN")); alg.MakeUpper(); @@ -494,18 +1240,18 @@ void wxHtmlContainerCell::SetAlign(const wxHtmlTag& tag) void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale) { - if (tag.HasParam(wxT("WIDTH"))) + if (tag.HasParam(wxT("WIDTH"))) { int wdi; wxString wd = tag.GetParam(wxT("WIDTH")); - if (wd[wd.Length()-1] == wxT('%')) - { + if (wd[wd.length()-1] == wxT('%')) + { wxSscanf(wd.c_str(), wxT("%i%%"), &wdi); SetWidthFloat(wdi, wxHTML_UNITS_PERCENT); } - else - { + else + { wxSscanf(wd.c_str(), wxT("%i"), &wdi); SetWidthFloat((int)(pixel_scale * (double)wdi), wxHTML_UNITS_PIXELS); } @@ -517,88 +1263,289 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) const { - const wxHtmlCell *r = NULL; + if (m_Cells) + { + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) + { + const wxHtmlCell *r = cell->Find(condition, param); + if (r) return r; + } + } + return NULL; +} - if (m_Cells) + +wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, + unsigned flags) const +{ + if ( flags & wxHTML_FIND_EXACT ) + { + for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) + { + int cx = cell->GetPosX(), + cy = cell->GetPosY(); + + if ( (cx <= x) && (cx + cell->GetWidth() > x) && + (cy <= y) && (cy + cell->GetHeight() > y) ) + { + return cell->FindCellByPos(x - cx, y - cy, flags); + } + } + } + else if ( flags & wxHTML_FIND_NEAREST_AFTER ) { - r = m_Cells->Find(condition, param); - if (r) return r; + wxHtmlCell *c; + for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) + { + if ( cell->IsFormattingCell() ) + continue; + int cellY = cell->GetPosY(); + if (!( y < cellY || (y < cellY + cell->GetHeight() && + x < cell->GetPosX() + cell->GetWidth()) )) + continue; + + c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags); + if (c) return c; + } + } + else if ( flags & wxHTML_FIND_NEAREST_BEFORE ) + { + wxHtmlCell *c2, *c = NULL; + for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) + { + if ( cell->IsFormattingCell() ) + continue; + int cellY = cell->GetPosY(); + if (!( cellY + cell->GetHeight() <= y || + (y >= cellY && x >= cell->GetPosX()) )) + break; + c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags); + if (c2) + c = c2; + } + if (c) return c; } - return wxHtmlCell::Find(condition, param); + return NULL; } +bool wxHtmlContainerCell::ProcessMouseClick(wxHtmlWindowInterface *window, + const wxPoint& pos, + const wxMouseEvent& event) +{ +#if WXWIN_COMPATIBILITY_2_6 + wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event); + return compat.CallOnMouseClick(this); +} -void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event) +void wxHtmlContainerCell::OnMouseClick(wxWindow*, + int, int, const wxMouseEvent& event) { - if (m_Cells) + wxCHECK_RET( gs_helperOnMouseClick, _T("unexpected call to OnMouseClick") ); + wxHtmlWindowInterface *window = gs_helperOnMouseClick->window; + const wxPoint& pos = gs_helperOnMouseClick->pos; +#endif // WXWIN_COMPATIBILITY_2_6 + + bool retval = false; + wxHtmlCell *cell = FindCellByPos(pos.x, pos.y); + if ( cell ) + retval = cell->ProcessMouseClick(window, pos, event); + +#if WXWIN_COMPATIBILITY_2_6 + gs_helperOnMouseClick->retval = retval; +#else + return retval; +#endif // WXWIN_COMPATIBILITY_2_6 +} + + +wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const +{ + if ( m_Cells ) { - wxHtmlCell *c = m_Cells; - while (c) - { - if ( (c->GetPosX() <= x) && - (c->GetPosY() <= y) && - (c->GetPosX() + c->GetWidth() > x) && - (c->GetPosY() + c->GetHeight() > y)) - { - c->OnMouseClick(parent, x - c->GetPosX(), y - c->GetPosY(), event); - break; - } - c = c->GetNext(); + wxHtmlCell *c2; + for (wxHtmlCell *c = m_Cells; c; c = c->GetNext()) + { + c2 = c->GetFirstTerminal(); + if ( c2 ) + return c2; } } + return NULL; } +wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const +{ + if ( m_Cells ) + { + // most common case first: + wxHtmlCell *c = m_LastCell->GetLastTerminal(); + if ( c ) + return c; + + wxHtmlCell *ctmp; + wxHtmlCell *c2 = NULL; + for (c = m_Cells; c; c = c->GetNext()) + { + ctmp = c->GetLastTerminal(); + if ( ctmp ) + c2 = ctmp; + } + return c2; + } + else + return NULL; +} + + +static bool IsEmptyContainer(wxHtmlContainerCell *cell) +{ + for ( wxHtmlCell *c = cell->GetFirstChild(); c; c = c->GetNext() ) + { + if ( !c->IsTerminalCell() || !c->IsFormattingCell() ) + return false; + } + return true; +} + +void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom) +{ + if ( top ) + SetIndent(0, wxHTML_INDENT_TOP); + if ( bottom ) + SetIndent(0, wxHTML_INDENT_BOTTOM); + + if ( m_Cells ) + { + wxHtmlCell *c; + wxHtmlContainerCell *cont; + if ( top ) + { + for ( c = m_Cells; c; c = c->GetNext() ) + { + if ( c->IsTerminalCell() ) + { + if ( !c->IsFormattingCell() ) + break; + } + else + { + cont = (wxHtmlContainerCell*)c; + if ( IsEmptyContainer(cont) ) + { + cont->SetIndent(0, wxHTML_INDENT_VERTICAL); + } + else + { + cont->RemoveExtraSpacing(true, false); + break; + } + } + } + } + + if ( bottom ) + { + wxArrayPtrVoid arr; + for ( c = m_Cells; c; c = c->GetNext() ) + arr.Add((void*)c); + + for ( int i = arr.GetCount() - 1; i >= 0; i--) + { + c = (wxHtmlCell*)arr[i]; + if ( c->IsTerminalCell() ) + { + if ( !c->IsFormattingCell() ) + break; + } + else + { + cont = (wxHtmlContainerCell*)c; + if ( IsEmptyContainer(cont) ) + { + cont->SetIndent(0, wxHTML_INDENT_VERTICAL); + } + else + { + cont->RemoveExtraSpacing(false, true); + break; + } + } + } + } + } +} -//-------------------------------------------------------------------------------- +// -------------------------------------------------------------------------- // wxHtmlColourCell -//-------------------------------------------------------------------------------- +// -------------------------------------------------------------------------- -void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) +IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell) + +void wxHtmlColourCell::Draw(wxDC& dc, + int x, int y, + int WXUNUSED(view_y1), int WXUNUSED(view_y2), + wxHtmlRenderingInfo& info) { - if (m_Flags & wxHTML_CLR_FOREGROUND) - dc.SetTextForeground(m_Colour); - if (m_Flags & wxHTML_CLR_BACKGROUND) - { - dc.SetBackground(wxBrush(m_Colour, wxSOLID)); - dc.SetTextBackground(m_Colour); - } - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); + DrawInvisible(dc, x, y, info); } -void wxHtmlColourCell::DrawInvisible(wxDC& dc, int x, int y) +void wxHtmlColourCell::DrawInvisible(wxDC& dc, + int WXUNUSED(x), int WXUNUSED(y), + wxHtmlRenderingInfo& info) { + wxHtmlRenderingState& state = info.GetState(); if (m_Flags & wxHTML_CLR_FOREGROUND) - dc.SetTextForeground(m_Colour); - if (m_Flags & wxHTML_CLR_BACKGROUND) { - dc.SetBackground(wxBrush(m_Colour, wxSOLID)); - dc.SetTextBackground(m_Colour); + state.SetFgColour(m_Colour); + if (state.GetSelectionState() != wxHTML_SEL_IN) + dc.SetTextForeground(m_Colour); + else + dc.SetTextForeground( + info.GetStyle().GetSelectedTextColour(m_Colour)); + } + if (m_Flags & wxHTML_CLR_BACKGROUND) + { + state.SetBgColour(m_Colour); + if (state.GetSelectionState() != wxHTML_SEL_IN) + { + dc.SetTextBackground(m_Colour); + dc.SetBackground(wxBrush(m_Colour, wxBRUSHSTYLE_SOLID)); + } + else + { + wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour); + dc.SetTextBackground(c); + dc.SetBackground(wxBrush(c, wxBRUSHSTYLE_SOLID)); + } } - wxHtmlCell::DrawInvisible(dc, x, y); } -//-------------------------------------------------------------------------------- +// --------------------------------------------------------------------------- // wxHtmlFontCell -//-------------------------------------------------------------------------------- +// --------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell) -void wxHtmlFontCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) +void wxHtmlFontCell::Draw(wxDC& dc, + int WXUNUSED(x), int WXUNUSED(y), + int WXUNUSED(view_y1), int WXUNUSED(view_y2), + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); } -void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y) +void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); - wxHtmlCell::DrawInvisible(dc, x, y); } @@ -608,9 +1555,11 @@ void wxHtmlFontCell::DrawInvisible(wxDC& dc, int x, int y) -//-------------------------------------------------------------------------------- +// --------------------------------------------------------------------------- // wxHtmlWidgetCell -//-------------------------------------------------------------------------------- +// --------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell) wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w) { @@ -622,32 +1571,42 @@ wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w) } -void wxHtmlWidgetCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) +void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), + int WXUNUSED(x), int WXUNUSED(y), + int WXUNUSED(view_y1), int WXUNUSED(view_y2), + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; - while (c) + while (c) { absx += c->GetPosX(); absy += c->GetPosY(); c = c->GetParent(); } - ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty); - m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height); + wxScrolledWindow *scrolwin = + wxDynamicCast(m_Wnd->GetParent(), wxScrolledWindow); + wxCHECK_RET( scrolwin, + _T("widget cells can only be placed in wxHtmlWindow") ); - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); + scrolwin->GetViewStart(&stx, &sty); + m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, + absy - wxHTML_SCROLL_STEP * sty, + m_Width, m_Height); } -void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y) +void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc), + int WXUNUSED(x), int WXUNUSED(y), + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; - while (c) + while (c) { absx += c->GetPosX(); absy += c->GetPosY(); @@ -656,15 +1615,13 @@ void wxHtmlWidgetCell::DrawInvisible(wxDC& dc, int x, int y) ((wxScrolledWindow*)(m_Wnd->GetParent()))->GetViewStart(&stx, &sty); m_Wnd->SetSize(absx - wxHTML_SCROLL_STEP * stx, absy - wxHTML_SCROLL_STEP * sty, m_Width, m_Height); - - wxHtmlCell::DrawInvisible(dc, x, y); } void wxHtmlWidgetCell::Layout(int w) { - if (m_WidthFloat != 0) + if (m_WidthFloat != 0) { m_Width = (w * m_WidthFloat) / 100; m_Wnd->SetSize(m_Width, m_Height); @@ -673,4 +1630,44 @@ void wxHtmlWidgetCell::Layout(int w) wxHtmlCell::Layout(w); } + + +// ---------------------------------------------------------------------------- +// wxHtmlTerminalCellsInterator +// ---------------------------------------------------------------------------- + +const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++() +{ + if ( !m_pos ) + return NULL; + + do + { + if ( m_pos == m_to ) + { + m_pos = NULL; + return NULL; + } + + if ( m_pos->GetNext() ) + m_pos = m_pos->GetNext(); + else + { + // we must go up the hierarchy until we reach container where this + // is not the last child, and then go down to first terminal cell: + while ( m_pos->GetNext() == NULL ) + { + m_pos = m_pos->GetParent(); + if ( !m_pos ) + return NULL; + } + m_pos = m_pos->GetNext(); + } + while ( m_pos->GetFirstChild() != NULL ) + m_pos = m_pos->GetFirstChild(); + } while ( !m_pos->IsTerminalCell() ); + + return m_pos; +} + #endif