X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/86ff9b45d9a54125f3143e6a270a45677c0ca7fd..0063a4dce6b65152b94e80c9f55c402198cef047:/src/html/htmlcell.cpp diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index 665db26ff2..4747a35f43 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 @@ -31,6 +31,7 @@ #include "wx/html/htmlwin.h" #include "wx/settings.h" #include "wx/module.h" +#include "wx/dynarray.h" #include @@ -61,20 +62,22 @@ void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell) 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& 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); } @@ -84,12 +87,14 @@ wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour( // 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; } @@ -134,10 +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; } @@ -158,16 +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; @@ -184,10 +179,10 @@ 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; @@ -259,13 +254,24 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const // 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) @@ -277,13 +283,20 @@ void wxHtmlWordCell::Split(wxDC& dc, wxPoint pt1 = (selFrom == wxDefaultPosition) ? wxDefaultPosition : selFrom - GetAbsPos(); wxPoint pt2 = (selTo == wxDefaultPosition) ? - wxPoint(m_Width, -1) : selTo - GetAbsPos(); + wxPoint(m_Width, wxDefaultPosition.y) : 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 ) { @@ -349,12 +362,15 @@ static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info, 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)); } } @@ -364,9 +380,12 @@ void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, wxHtmlRenderingInfo& info) { #if 0 // useful for debugging - dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height); + 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: @@ -414,22 +433,49 @@ 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); + } + } } } @@ -477,18 +523,20 @@ wxCursor wxHtmlWordCell::GetCursor() const // 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; @@ -533,7 +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; @@ -552,13 +600,13 @@ bool wxHtmlContainerCell::AdjustPagebreak(int *pagebreak, int* known_pagebreaks, else { wxHtmlCell *c = GetFirstChild(); - bool rt = FALSE; + 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) @@ -589,13 +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; /* @@ -647,13 +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(); - cell = cell->GetNext(); - xcnt++; + 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(); + + // 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; @@ -676,30 +754,91 @@ 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, + *prev = NULL, + *next = NULL; + for ( c = line; c != cell; prev = c, c = next ) + { + next = c->GetNext(); + if ( c->IsLinebreakAllowed() && + (next == cell || next->IsLinebreakAllowed()) && + (!prev || prev->IsLinebreakAllowed()) ) + { + total++; + } + } + + // and now extra space to those cells which merit it + if ( total ) + { + prev = + next = NULL; + for ( int n = 0; line != cell; prev = line, line = line->GetNext() ) + { + line->SetPos(line->GetPosX() + s_indent + + ((n * step) / total), + line->GetPosY() + ypos); + + next = line->GetNext(); + if ( line->IsLinebreakAllowed() && + (next == cell || + next->IsLinebreakAllowed()) && + (!prev || prev->IsLinebreakAllowed()) ) + { + // offset the next cell relative to this one + // thus increasing our size + n++; + } + } + } + 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; } @@ -724,6 +863,10 @@ 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; @@ -758,6 +901,10 @@ 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)) { @@ -907,11 +1054,9 @@ 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; } } @@ -939,14 +1084,16 @@ 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; } } @@ -955,11 +1102,13 @@ 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; } @@ -979,30 +1128,6 @@ 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 ) @@ -1027,9 +1152,14 @@ 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 @@ -1037,12 +1167,92 @@ 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; + } + } + } + } + } +} + + // -------------------------------------------------------------------------- // wxHtmlColourCell // -------------------------------------------------------------------------- +IMPLEMENT_ABSTRACT_CLASS(wxHtmlColourCell, wxHtmlCell) + void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2), @@ -1069,11 +1279,16 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, { state.SetBgColour(m_Colour); if (state.GetSelectionState() != wxHTML_SEL_IN) + { dc.SetTextBackground(m_Colour); + dc.SetBackground(wxBrush(m_Colour, wxSOLID)); + } else - dc.SetTextBackground( - info.GetStyle().GetSelectedTextBgColour(m_Colour)); - dc.SetBackground(wxBrush(m_Colour, wxSOLID)); + { + wxColour c = info.GetStyle().GetSelectedTextBgColour(m_Colour); + dc.SetTextBackground(c); + dc.SetBackground(wxBrush(c, wxSOLID)); + } } } @@ -1084,6 +1299,8 @@ 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), @@ -1109,6 +1326,8 @@ 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;