X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d1da887276915d7b83dc7beff43bbe0deea35939..80a779275ae04443c568dca919adb26cf6f5002c:/src/html/htmlcell.cpp diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index 5ea2d4b802..95d81d6abc 100644 --- a/src/html/htmlcell.cpp +++ b/src/html/htmlcell.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: htmlcell.cpp +// Name: src/html/htmlcell.cpp // Purpose: wxHtmlCell - basic element of HTML output // Author: Vaclav Slavik // RCS-ID: $Id$ @@ -7,42 +7,28 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) -#pragma implementation "htmlcell.h" -#endif - #include "wx/wxprec.h" -#include "wx/defs.h" - -#if wxUSE_HTML && wxUSE_STREAMS - #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif +#if wxUSE_HTML && wxUSE_STREAMS + #ifndef WXPRECOMP + #include "wx/dynarray.h" #include "wx/brush.h" #include "wx/colour.h" #include "wx/dc.h" + #include "wx/settings.h" + #include "wx/module.h" #endif #include "wx/html/htmlcell.h" #include "wx/html/htmlwin.h" -#include "wx/settings.h" -#include "wx/module.h" -#include "wx/dynarray.h" #include -//----------------------------------------------------------------------------- -// Global variables -//----------------------------------------------------------------------------- - -static wxCursor *gs_cursorLink = NULL; -static wxCursor *gs_cursorText = NULL; - - //----------------------------------------------------------------------------- // Helper classes //----------------------------------------------------------------------------- @@ -94,6 +80,8 @@ wxHtmlCell::wxHtmlCell() : wxObject() 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; } @@ -103,37 +91,136 @@ 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) +{ + 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; + +static wxHtmlCellOnMouseClickCompatHelper *gs_helperOnMouseClick = NULL; + +// helper for routing calls to new ProcessMouseClick() method to deprecated +// OnMouseClick() method +struct wxHtmlCellOnMouseClickCompatHelper +{ + 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 -void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y, - const wxMouseEvent& event) +bool wxHtmlCell::ProcessMouseClick(wxHtmlWindowInterface *window, + const wxPoint& pos, + const wxMouseEvent& event) { - wxHtmlLinkInfo *lnk = GetLink(x, y); - if (lnk != NULL) + 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); - // note : this cast is legal because parent is *always* wxHtmlWindow - wxStaticCast(parent, wxHtmlWindow)->OnLinkClicked(lnk2); + 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 + +wxCursor wxHtmlCell::GetMouseCursor(wxHtmlWindowInterface *window) const +{ +#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() ) { - if ( !gs_cursorLink ) - gs_cursorLink = new wxCursor(wxCURSOR_HAND); - return *gs_cursorLink; + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Link); } else - return *wxSTANDARD_CURSOR; + { + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Default); + } } -bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const +bool wxHtmlCell::AdjustPagebreak(int *pagebreak, + wxArrayInt& WXUNUSED(known_pagebreaks)) const { if ((!m_CanLiveOnPagebreak) && m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak) @@ -190,10 +277,11 @@ wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y, } -wxPoint wxHtmlCell::GetAbsPos() const +wxPoint wxHtmlCell::GetAbsPos(wxHtmlCell *rootCell) const { wxPoint p(m_PosX, m_PosY); - for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent) + for (wxHtmlCell *parent = m_Parent; parent && parent != rootCell; + parent = parent->m_Parent) { p.x += parent->m_PosX; p.y += parent->m_PosY; @@ -201,6 +289,14 @@ wxPoint wxHtmlCell::GetAbsPos() const return p; } +wxHtmlCell *wxHtmlCell::GetRootCell() const +{ + wxHtmlCell *c = wxConstCast(this, wxHtmlCell); + while ( c->m_Parent ) + c = c->m_Parent; + return c; +} + unsigned wxHtmlCell::GetDepth() const { unsigned d = 0; @@ -256,7 +352,7 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell) -wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell() +wxHtmlWordCell::wxHtmlWordCell(const wxString& word, const wxDC& dc) : wxHtmlCell() { m_Word = word; dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent); @@ -276,7 +372,7 @@ void wxHtmlWordCell::SetPreviousWord(wxHtmlWordCell *cell) // 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(wxDC& dc, +void wxHtmlWordCell::Split(const wxDC& dc, const wxPoint& selFrom, const wxPoint& selTo, unsigned& pos1, unsigned& pos2) const { @@ -285,7 +381,6 @@ void wxHtmlWordCell::Split(wxDC& dc, wxPoint pt2 = (selTo == wxDefaultPosition) ? wxPoint(m_Width, wxDefaultCoord) : selTo - GetAbsPos(); - wxCoord charW, charH; unsigned len = m_Word.length(); unsigned i = 0; pos1 = 0; @@ -298,6 +393,14 @@ void wxHtmlWordCell::Split(wxDC& dc, pt2.x = m_Width; // before selection: +#ifdef __WXMAC__ + // implementation using PartialExtents to support fractional widths + wxArrayInt widths ; + dc.GetPartialTextExtents(m_Word,widths) ; + while( i < len && pt1.x >= widths[i] ) + i++ ; +#else // __WXMAC__ + wxCoord charW, charH; while ( pt1.x > 0 && i < len ) { dc.GetTextExtent(m_Word[i], &charW, &charH); @@ -308,9 +411,14 @@ void wxHtmlWordCell::Split(wxDC& dc, i++; } } +#endif // __WXMAC__/!__WXMAC__ // in selection: unsigned j = i; +#ifdef __WXMAC__ + while( j < len && pt2.x >= widths[j] ) + j++ ; +#else // __WXMAC__ pos2 = pos1; pt2.x -= pos2; while ( pt2.x > 0 && j < len ) @@ -323,12 +431,13 @@ void wxHtmlWordCell::Split(wxDC& dc, j++; } } +#endif // __WXMAC__/!__WXMAC__ pos1 = i; pos2 = j; } -void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const +void wxHtmlWordCell::SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const { unsigned p1, p2; @@ -506,16 +615,16 @@ wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const return m_Word; } -wxCursor wxHtmlWordCell::GetCursor() const +wxCursor wxHtmlWordCell::GetMouseCursor(wxHtmlWindowInterface *window) const { if ( !GetLink() ) { - if ( !gs_cursorText ) - gs_cursorText = new wxCursor(wxCURSOR_IBEAM); - return *gs_cursorText; + return window->GetHTMLCursor(wxHtmlWindowInterface::HTMLCursor_Text); } else - return wxHtmlCell::GetCursor(); + { + return wxHtmlCell::GetMouseCursor(window); + } } @@ -591,32 +700,28 @@ int wxHtmlContainerCell::GetIndentUnits(int ind) const } - -bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, int number_of_pages) const +bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, + wxArrayInt& known_pagebreaks) const { if (!m_CanLiveOnPagebreak) - return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks, number_of_pages); + return wxHtmlCell::AdjustPagebreak(pagebreak, known_pagebreaks); - else - { - wxHtmlCell *c = GetFirstChild(); - 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, known_pagebreaks, number_of_pages)) - 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) { wxHtmlCell::Layout(w); @@ -637,8 +742,6 @@ void wxHtmlContainerCell::Layout(int w) return; } - wxHtmlCell *cell = m_Cells, - *line = m_Cells; wxHtmlCell *nextCell; long xpos = 0, ypos = m_IndentTop; int xdelta = 0, ybasicpos = 0, ydiff; @@ -685,6 +788,8 @@ void wxHtmlContainerCell::Layout(int w) s_width = m_Width - s_indent - ((m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight); // my own layouting: + wxHtmlCell *cell = m_Cells, + *line = m_Cells; while (cell != NULL) { switch (m_AlignVer) @@ -729,7 +834,7 @@ void wxHtmlContainerCell::Layout(int w) } while (nextCell && !nextCell->IsLinebreakAllowed()); } - // force new line if occured: + // force new line if occurred: if ((cell == NULL) || (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed())) { @@ -902,52 +1007,60 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, dc.SetPen(*wxRED_PEN); dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height); #endif - // container visible, draw it: - if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1)) + + int xlocal = x + m_PosX; + int ylocal = y + m_PosY; + + if (m_UseBkColour) { - if (m_UseBkColour) - { - wxBrush myb = wxBrush(m_BkColour, wxSOLID); + wxBrush myb = wxBrush(m_BkColour, wxSOLID); - int real_y1 = mMax(y + m_PosY, view_y1); - int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2); + int real_y1 = mMax(ylocal, view_y1); + int real_y2 = mMin(ylocal + m_Height - 1, view_y2); - dc.SetBrush(myb); - dc.SetPen(*wxTRANSPARENT_PEN); - dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1); - } + dc.SetBrush(myb); + dc.SetPen(*wxTRANSPARENT_PEN); + dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1); + } - 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, 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, y + m_PosY + m_Height - 1); - } + if (m_UseBorder) + { + wxPen mypen1(m_BorderColour1, 1, wxSOLID); + wxPen mypen2(m_BorderColour2, 1, wxSOLID); + + 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) + if (m_Cells) + { + // draw container's contents: + for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) { - // 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, - x + m_PosX, y + m_PosY, view_y1, view_y2, + 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); + } } } - // container invisible, just proceed font+color changing: - else - { - DrawInvisible(dc, x, y, info); - } } @@ -1031,7 +1144,7 @@ void wxHtmlContainerCell::SetWidthFloat(const wxHtmlTag& tag, double pixel_scale 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); @@ -1116,13 +1229,34 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, } -void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event) +bool wxHtmlContainerCell::ProcessMouseClick(wxHtmlWindowInterface *window, + const wxPoint& pos, + const wxMouseEvent& event) { - wxHtmlCell *cell = FindCellByPos(x, y); - if ( cell ) - cell->OnMouseClick(parent, x, y, event); +#if WXWIN_COMPATIBILITY_2_6 + wxHtmlCellOnMouseClickCompatHelper compat(window, pos, event); + return compat.CallOnMouseClick(this); } +void wxHtmlContainerCell::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 + + 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 @@ -1229,7 +1363,8 @@ void wxHtmlContainerCell::RemoveExtraSpacing(bool top, bool bottom) cont = (wxHtmlContainerCell*)c; if ( IsEmptyContainer(cont) ) { - cont->SetIndent(0, wxHTML_INDENT_VERTICAL); } + cont->SetIndent(0, wxHTML_INDENT_VERTICAL); + } else { cont->RemoveExtraSpacing(false, true); @@ -1427,29 +1562,4 @@ const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++() return m_pos; } - - - - - - -//----------------------------------------------------------------------------- -// Cleanup -//----------------------------------------------------------------------------- - -class wxHtmlCellModule: public wxModule -{ -DECLARE_DYNAMIC_CLASS(wxHtmlCellModule) -public: - wxHtmlCellModule() : wxModule() {} - bool OnInit() { return true; } - void OnExit() - { - wxDELETE(gs_cursorLink); - wxDELETE(gs_cursorText); - } -}; - -IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule) - #endif