X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/36c4ff4d6501712cbc718a6569599f2725db0d2c..046d682f0f684977b7ba933a128f5c84e06ded0e:/src/html/htmlcell.cpp?ds=sidebyside diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index 2e2fa772d9..c8be065e51 100644 --- a/src/html/htmlcell.cpp +++ b/src/html/htmlcell.cpp @@ -4,10 +4,10 @@ // Author: Vaclav Slavik // RCS-ID: $Id$ // Copyright: (c) 1999 Vaclav Slavik -// Licence: wxWindows Licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "htmlcell.h" #endif @@ -30,19 +30,71 @@ #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, 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 //----------------------------------------------------------------------------- +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_CanLiveOnPagebreak = true; m_Link = NULL; } @@ -68,6 +120,18 @@ 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 { @@ -75,10 +139,10 @@ bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks) m_PosY < *pagebreak && m_PosY + m_Height > *pagebreak) { *pagebreak = m_PosY; - return TRUE; + return true; } - return FALSE; + return false; } @@ -92,7 +156,6 @@ void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) } - void wxHtmlCell::Layout(int WXUNUSED(w)) { SetPos(0, 0); @@ -100,16 +163,6 @@ 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; @@ -119,12 +172,81 @@ const wxHtmlCell* wxHtmlCell::Find(int WXUNUSED(condition), const void* WXUNUSED wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y, unsigned flags) const { - if ( (flags & wxHTML_FIND_TERMINAL) && - x >= 0 && x < m_Width && y >= 0 && y < m_Height ) + if ( x >= 0 && x < m_Width && y >= 0 && y < m_Height ) { return wxConstCast(this, wxHtmlCell); } - return NULL; + 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() const +{ + wxPoint p(m_PosX, m_PosY); + for (wxHtmlCell *parent = m_Parent; parent; parent = parent->m_Parent) + { + p.x += parent->m_PosX; + p.y += parent->m_PosY; + } + return p; +} + +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; } @@ -132,57 +254,289 @@ wxHtmlCell *wxHtmlCell::FindCellByPos(wxCoord x, wxCoord y, // wxHtmlWordCell //----------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlWordCell, wxHtmlCell) + wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell() { m_Word = word; dc.GetTextExtent(m_Word, &m_Width, &m_Height, &m_Descent); - SetCanLiveOnPagebreak(FALSE); + 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, + 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(); + + wxCoord charW, charH; + 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: + while ( pt1.x > 0 && i < len ) + { + dc.GetTextExtent(m_Word[i], &charW, &charH); + pt1.x -= charW; + if ( pt1.x >= 0 ) + { + pos1 += charW; + i++; + } + } -void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, - int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& state) + // in selection: + unsigned j = i; + pos2 = pos1; + pt2.x -= pos2; + while ( pt2.x > 0 && j < len ) + { + dc.GetTextExtent(m_Word[j], &charW, &charH); + pt2.x -= charW; + if ( pt2.x >= 0 ) + { + pos2 += charW; + j++; + } + } + + pos1 = i; + pos2 = j; +} + +void wxHtmlWordCell::SetSelectionPrivPos(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) { - if (state.GetSelectionState() == wxHTML_SEL_IN && - dc.GetBackgroundMode() != wxSOLID) + wxColour fg = info.GetState().GetFgColour(); + wxColour bg = info.GetState().GetBgColour(); + + if ( toSelection ) { dc.SetBackgroundMode(wxSOLID); - dc.SetTextBackground( - wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT)); - dc.SetTextForeground( - wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT)); + dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg)); + dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg)); + dc.SetBackground(wxBrush(info.GetStyle().GetSelectedTextBgColour(bg), + wxSOLID)); } - else if (state.GetSelectionState() == wxHTML_SEL_OUT && - dc.GetBackgroundMode() == wxSOLID) + else { dc.SetBackgroundMode(wxTRANSPARENT); - dc.SetTextForeground(state.GetFgColour()); - dc.SetTextBackground(state.GetBgColour()); + dc.SetTextForeground(fg); + dc.SetTextBackground(bg); + dc.SetBackground(wxBrush(bg, wxSOLID)); } +} + - dc.DrawText(m_Word, x + m_PosX, y + m_PosY); +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() != wxSOLID ) + { + SwitchSelState(dc, info, true); + } + 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(); + + // 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 + } + + 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(); +} + //----------------------------------------------------------------------------- // 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; @@ -227,7 +581,7 @@ 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; @@ -245,14 +599,14 @@ bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, else { - wxHtmlCell *c = GetFirstCell(); - bool rt = FALSE; + wxHtmlCell *c = GetFirstChild(); + bool rt = false; int pbrk = *pagebreak - m_PosY; while (c) { if (c->AdjustPagebreak(&pbrk, known_pagebreaks, number_of_pages)) - rt = TRUE; + rt = true; c = c->GetNext(); } if (rt) @@ -283,13 +637,16 @@ void wxHtmlContainerCell::Layout(int w) return; } - wxHtmlCell *cell = m_Cells, *line = m_Cells; + 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; /* @@ -341,13 +698,40 @@ 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++; + + // 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; @@ -370,30 +754,88 @@ void wxHtmlContainerCell::Layout(int w) ypos += ysizeup; if (m_AlignHor != wxHTML_ALIGN_JUSTIFY || cell == NULL) + { while (line != cell) { line->SetPos(line->GetPosX() + xdelta, ypos + line->GetPosY()); line = line->GetNext(); } - else + } + else // align == justify { - int counter = 0; - int step = (s_width - xpos); - if (step < 0) step = 0; - xcnt--; - if (xcnt > 0) while (line != cell) + // 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 ) { - line->SetPos(line->GetPosX() + s_indent + - (counter++ * step / xcnt), - ypos + line->GetPosY()); - line = line->GetNext(); + // first count the cells which will get extra space + int total = 0; + + const wxHtmlCell *c; + if ( line != cell ) + { + for ( c = line->GetNext(); c != cell; c = c->GetNext() ) + { + if ( c->IsLinebreakAllowed() ) + { + total++; + } + } + } + + // and now extra space to those cells which merit it + if ( total ) + { + // first cell on line is not moved: + 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; } @@ -418,100 +860,116 @@ 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; } -void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingState& state, +void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info, wxHtmlCell *cell) const { - wxHtmlSelection *s = state.GetSelection(); + wxHtmlSelection *s = info.GetSelection(); if (!s) return; - if (s->GetFromCell() == this || s->GetToCell() == this) + if (s->GetFromCell() == cell || s->GetToCell() == cell) { - state.SetSelectionState(wxHTML_SEL_CHANGING); + info.GetState().SetSelectionState(wxHTML_SEL_CHANGING); } } -void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingState& state, +void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info, wxHtmlCell *cell) const { - wxHtmlSelection *s = state.GetSelection(); + wxHtmlSelection *s = info.GetSelection(); if (!s) return; - if (s->GetFromCell() == this) - state.SetSelectionState(wxHTML_SEL_IN); - else if (s->GetToCell() == this) - state.SetSelectionState(wxHTML_SEL_OUT); + 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, - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { - // container visible, draw it: - if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1)) - { - if (m_UseBkColour) - { - wxBrush myb = wxBrush(m_BkColour, wxSOLID); +#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; - int real_y1 = mMax(y + m_PosY, view_y1); - int real_y2 = mMin(y + m_PosY + m_Height - 1, view_y2); + if (m_UseBkColour) + { + wxBrush myb = wxBrush(m_BkColour, wxSOLID); - dc.SetBrush(myb); - dc.SetPen(*wxTRANSPARENT_PEN); - dc.DrawRectangle(x + m_PosX, real_y1, m_Width, real_y2 - real_y1 + 1); - } + int real_y1 = mMax(ylocal, view_y1); + int real_y2 = mMin(ylocal + m_Height - 1, view_y2); - if (m_UseBorder) - { - wxPen mypen1(m_BorderColour1, 1, wxSOLID); - wxPen mypen2(m_BorderColour2, 1, wxSOLID); + dc.SetBrush(myb); + dc.SetPen(*wxTRANSPARENT_PEN); + dc.DrawRectangle(xlocal, real_y1, m_Width, real_y2 - real_y1 + 1); + } - 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)) { - UpdateRenderingStatePre(state, cell); + // the cell is visible, draw it: + UpdateRenderingStatePre(info, cell); cell->Draw(dc, - x + m_PosX, y + m_PosY, view_y1, view_y2, - state); - UpdateRenderingStatePost(state, cell); + 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, state); - } } void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y, - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { if (m_Cells) { for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) { - UpdateRenderingStatePre(state, cell); - cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, state); - UpdateRenderingStatePost(state, cell); + UpdateRenderingStatePre(info, cell); + cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info); + UpdateRenderingStatePost(info, cell); } } } @@ -601,11 +1059,9 @@ 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; } } @@ -616,24 +1072,55 @@ const wxHtmlCell* wxHtmlContainerCell::Find(int condition, const void* param) co wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, unsigned flags) const { - for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) + if ( flags & wxHTML_FIND_EXACT ) { - int cx = cell->GetPosX(), - cy = cell->GetPosY(); + 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) ) + 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 ) + { + wxHtmlCell *c; + for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) { - wxHtmlCell *c = cell->FindCellByPos(x - cx, y - cy, flags); - if (c == NULL && (flags & wxHTML_FIND_NONTERMINAL)) - return wxConstCast(this, wxHtmlContainerCell); - else - return c; + 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 (flags & wxHTML_FIND_NONTERMINAL) ? - wxConstCast(this, wxHtmlContainerCell) : NULL; + return NULL; } @@ -646,29 +1133,122 @@ void wxHtmlContainerCell::OnMouseClick(wxWindow *parent, int x, int y, const wxM -void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const +wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const { - int cleft = m_PosX + m_Width, cright = m_PosX; // worst case - int l, r; + if ( m_Cells ) + { + wxHtmlCell *c2; + for (wxHtmlCell *c = m_Cells; c; c = c->GetNext()) + { + c2 = c->GetFirstTerminal(); + if ( c2 ) + return c2; + } + } + return NULL; +} - for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) +wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const +{ + if ( m_Cells ) { - cell->GetHorizontalConstraints(&l, &r); - if (l < cleft) - cleft = l; - if (r > cright) - cright = r; + // 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; +} - 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; +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; + } + } + } + } + } +} @@ -677,30 +1257,44 @@ void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const // wxHtmlColourCell // -------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell) + void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { - DrawInvisible(dc, x, y, state); + DrawInvisible(dc, x, y, info); } void wxHtmlColourCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { + wxHtmlRenderingState& state = info.GetState(); if (m_Flags & wxHTML_CLR_FOREGROUND) { 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)); + } } } @@ -711,16 +1305,18 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, // wxHtmlFontCell // --------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlFontCell, wxHtmlCell) + void wxHtmlFontCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); } void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); } @@ -736,6 +1332,8 @@ void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), // wxHtmlWidgetCell // --------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlWidgetCell, wxHtmlCell) + wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w) { int sx, sy; @@ -749,7 +1347,7 @@ wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w) void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; @@ -769,7 +1367,7 @@ void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; @@ -798,4 +1396,69 @@ 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; +} + + + + + + + +//----------------------------------------------------------------------------- +// 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