X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f30e67dbea3b6476ce25b593285fdaec128f8fd1..b08c90ca63723536960122fc798f673af1faed13:/src/html/htmlcell.cpp diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index bb16393f36..c62a65ace0 100644 --- a/src/html/htmlcell.cpp +++ b/src/html/htmlcell.cpp @@ -7,7 +7,7 @@ // Licence: wxWindows Licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "htmlcell.h" #endif @@ -30,14 +30,25 @@ #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 //----------------------------------------------------------------------------- -void wxHtmlSelection::Set(const wxPoint& fromPos, wxHtmlCell *fromCell, - const wxPoint& toPos, wxHtmlCell *toCell) +void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell, + const wxPoint& toPos, const wxHtmlCell *toCell) { m_fromCell = fromCell; m_toCell = toCell; @@ -45,26 +56,28 @@ void wxHtmlSelection::Set(const wxPoint& fromPos, wxHtmlCell *fromCell, m_toPos = toPos; } -void wxHtmlSelection::Set(wxHtmlCell *fromCell, wxHtmlCell *toCell) +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()-1; - p2.y += toCell->GetHeight()-1; + p2.x += toCell->GetWidth(); + p2.y += toCell->GetHeight(); } Set(p1, fromCell, p2, toCell); } -wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextColour( - const wxColour& WXUNUSED(clr)) +wxColour +wxDefaultHtmlRenderingStyle:: +GetSelectedTextColour(const wxColour& WXUNUSED(clr)) { return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT); } -wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour( - const wxColour& WXUNUSED(clr)) +wxColour +wxDefaultHtmlRenderingStyle:: +GetSelectedTextBgColour(const wxColour& WXUNUSED(clr)) { return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT); } @@ -105,6 +118,18 @@ void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y, } +wxCursor wxHtmlCell::GetCursor() const +{ + if ( GetLink() ) + { + if ( !gs_cursorLink ) + gs_cursorLink = new wxCursor(wxCURSOR_HAND); + return *gs_cursorLink; + } + else + return *wxSTANDARD_CURSOR; +} + bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const { @@ -129,7 +154,6 @@ void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) } - void wxHtmlCell::Layout(int WXUNUSED(w)) { SetPos(0, 0); @@ -137,16 +161,6 @@ void wxHtmlCell::Layout(int WXUNUSED(w)) -void wxHtmlCell::GetHorizontalConstraints(int *left, int *right) const -{ - if (left) - *left = m_PosX; - if (right) - *right = m_PosX + m_Width; -} - - - const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED(param)) const { return NULL; @@ -163,10 +177,10 @@ wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y, else { if ((flags & wxHTML_FIND_NEAREST_AFTER) && - (y < 0 || (y == 0 && x <= 0))) + (y < 0 || (y < 0+m_Height && x < 0+m_Width))) return wxConstCast(this, wxHtmlCell); else if ((flags & wxHTML_FIND_NEAREST_BEFORE) && - (y > m_Height-1 || (y == m_Height-1 && x >= m_Width))) + (y >= 0+m_Height || (y >= 0 && x >= 0))) return wxConstCast(this, wxHtmlCell); else return NULL; @@ -184,7 +198,7 @@ wxPoint wxHtmlCell::GetAbsPos() const } return p; } - + unsigned wxHtmlCell::GetDepth() const { unsigned d = 0; @@ -192,7 +206,7 @@ unsigned wxHtmlCell::GetDepth() const d++; return d; } - + bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const { const wxHtmlCell *c1 = this; @@ -219,7 +233,7 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const if ( c1 == c2 ) return true; c1 = c1->GetNext(); - } + } return false; } else @@ -243,13 +257,22 @@ wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell() m_Word = word; dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent); 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(wxDC& dc, +void wxHtmlWordCell::Split(wxDC& dc, const wxPoint& selFrom, const wxPoint& selTo, unsigned& pos1, unsigned& pos2) const { @@ -263,6 +286,13 @@ void wxHtmlWordCell::Split(wxDC& dc, 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: while ( pt1.x > 0 && i < len ) { @@ -297,19 +327,19 @@ void wxHtmlWordCell::Split(wxDC& dc, void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const { unsigned p1, p2; - - Split(dc, + + 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() ) @@ -322,18 +352,21 @@ static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info, { wxColour fg = info.GetState().GetFgColour(); wxColour bg = info.GetState().GetBgColour(); - + if ( toSelection ) { dc.SetBackgroundMode(wxSOLID); dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg)); dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg)); + dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg), + wxSOLID)); } else { dc.SetBackgroundMode(wxTRANSPARENT); dc.SetTextForeground(fg); dc.SetTextBackground(bg); + dc.SetBackground(wxBrush(bg, wxSOLID)); } } @@ -343,9 +376,12 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, wxHtmlRenderingInfo& info) { #if 0 // useful for debugging + dc.SetPen(*wxBLACK_PEN); dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height); #endif + bool drawSelectionAfterCell = false; + if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING ) { // Selection changing, we must draw the word piecewise: @@ -353,9 +389,22 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, wxString txt; int w, h; int ofs = 0; - - wxPoint priv = (this == s->GetFromCell()) ? + + 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; @@ -366,13 +415,13 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, 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 ( part2 < m_Word.length() ) + if ( (size_t)part2 < m_Word.length() ) { dc.GetTextExtent(txt, &w, &h); ofs += w; @@ -380,40 +429,90 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, 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 ( info.GetState().GetSelectionState() != wxHTML_SEL_OUT && + if ( selstate != wxHTML_SEL_OUT && dc.GetBackgroundMode() != wxSOLID ) { SwitchSelState(dc, info, true); } - else if ( info.GetState().GetSelectionState() == wxHTML_SEL_OUT && + else if ( selstate == wxHTML_SEL_OUT && dc.GetBackgroundMode() == wxSOLID ) { 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); + } + } } } - + wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const { if ( s && (this == s->GetFromCell() || this == s->GetToCell()) ) { - wxPoint priv = (this == s->GetFromCell()) ? - s->GetFromPrivPos() : s->GetToPrivPos(); - int part1 = priv.x; - int part2 = priv.y; - return m_Word.Mid(part1, part2-part1); + 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 ) + { + int part1 = priv.x; + int part2 = priv.y; + return m_Word.Mid(part1, part2-part1); + } + //else: return the whole word below } - else - return m_Word; + + return m_Word; } +wxCursor wxHtmlWordCell::GetCursor() const +{ + if ( !GetLink() ) + { + if ( !gs_cursorText ) + gs_cursorText = new wxCursor(wxCURSOR_IBEAM); + return *gs_cursorText; + } + else + return wxHtmlCell::GetCursor(); +} //----------------------------------------------------------------------------- @@ -533,9 +632,10 @@ void wxHtmlContainerCell::Layout(int w) } 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; @@ -590,13 +690,27 @@ 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(); cell = cell->GetNext(); xcnt++; - + + // 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 occured: - if ((cell == NULL) || (xpos + cell->GetWidth() > s_width)) + if ((cell == NULL) || + (xpos + nextWordWidth > s_width && cell->IsLinebreakAllowed())) { if (xpos > MaxLineWidth) MaxLineWidth = xpos; if (ysizeup < 0) ysizeup = 0; @@ -638,7 +752,6 @@ void wxHtmlContainerCell::Layout(int w) ypos + line->GetPosY()); line = line->GetNext(); } - xcnt++; } ypos += ysizedown; @@ -701,6 +814,10 @@ void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info, void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, wxHtmlRenderingInfo& info) { +#if 0 // useful for debugging + 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)) { @@ -850,11 +967,9 @@ const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) co { if (m_Cells) { - const wxHtmlCell *r = NULL; - for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) { - r = cell->Find(condition, param); + const wxHtmlCell *r = cell->Find(condition, param); if (r) return r; } } @@ -882,14 +997,16 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, else if ( flags & wxHTML_FIND_NEAREST_AFTER ) { wxHtmlCell *c; - int y2; for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) { - y2 = cell->GetPosY() + cell->GetHeight() - 1; - if (y2 < y || (y2 == y && cell->GetPosX()+cell->GetWidth()-1 < x)) + 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 - cell->GetPosY(), - flags); + + c = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags); if (c) return c; } } @@ -898,11 +1015,13 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, wxHtmlCell *c2, *c = NULL; for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) { - if (cell->GetPosY() > y || - (cell->GetPosY() == y && cell->GetPosX() > x)) + 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 - cell->GetPosY(), - flags); + c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cellY, flags); if (c2) c = c2; } @@ -922,30 +1041,6 @@ void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxM -void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const -{ - int cleft = m_PosX + m_Width, cright = m_PosX; // worst case - int l, r; - - for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) - { - cell->GetHorizontalConstraints(&l, &r); - if (l < cleft) - cleft = l; - if (r > cright) - cright = r; - } - - cleft -= (m_IndentLeft < 0) ? (-m_IndentLeft * m_Width / 100) : m_IndentLeft; - cright += (m_IndentRight < 0) ? (-m_IndentRight * m_Width / 100) : m_IndentRight; - - if (left) - *left = cleft; - if (right) - *right = cright; -} - - wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const { if ( m_Cells ) @@ -970,9 +1065,14 @@ wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const if ( c ) return c; + wxHtmlCell *ctmp; wxHtmlCell *c2 = NULL; for (c = m_Cells; c; c = c->GetNext()) - c2 = c->GetLastTerminal(); + { + ctmp = c->GetLastTerminal(); + if ( ctmp ) + c2 = ctmp; + } return c2; } else @@ -980,6 +1080,84 @@ wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const } +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; + } + } + } + } + } +} + + // -------------------------------------------------------------------------- @@ -1003,14 +1181,25 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, { state.SetFgColour(m_Colour); if (state.GetSelectionState() != wxHTML_SEL_IN) - dc.SetTextForeground(m_Colour); + 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, wxSOLID)); + dc.SetBackground(wxBrush(m_Colour, wxSOLID)); + } + else + { + wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour); + dc.SetTextBackground(c); + dc.SetBackground(wxBrush(c, wxSOLID)); + } } } @@ -1144,8 +1333,33 @@ const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++() while ( m_pos->GetFirstChild() != NULL ) m_pos = m_pos->GetFirstChild(); } while ( !m_pos->IsTerminalCell() ); - + 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