3f66f6a5b3
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307 lines
8.4 KiB
C++
307 lines
8.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/html/m_list.cpp
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// Purpose: wxHtml module for lists
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// Author: Vaclav Slavik
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_HTML && wxUSE_STREAMS
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#ifndef WX_PRECOMP
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#include "wx/brush.h"
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#include "wx/dc.h"
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#endif
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#include "wx/html/forcelnk.h"
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#include "wx/html/m_templ.h"
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#include "wx/html/htmlcell.h"
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FORCE_LINK_ME(m_list)
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//-----------------------------------------------------------------------------
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// wxHtmlListmarkCell
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//-----------------------------------------------------------------------------
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class wxHtmlListmarkCell : public wxHtmlCell
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{
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private:
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wxBrush m_Brush;
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public:
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wxHtmlListmarkCell(wxDC *dc, const wxColour& clr);
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void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
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wxHtmlRenderingInfo& info);
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wxDECLARE_NO_COPY_CLASS(wxHtmlListmarkCell);
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};
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wxHtmlListmarkCell::wxHtmlListmarkCell(wxDC* dc, const wxColour& clr) : wxHtmlCell(), m_Brush(clr, wxBRUSHSTYLE_SOLID)
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{
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m_Width = dc->GetCharHeight();
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m_Height = dc->GetCharHeight();
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// bottom of list mark is lined with bottom of letters in next cell
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m_Descent = m_Height / 3;
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}
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void wxHtmlListmarkCell::Draw(wxDC& dc, int x, int y,
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int WXUNUSED(view_y1), int WXUNUSED(view_y2),
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wxHtmlRenderingInfo& WXUNUSED(info))
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{
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dc.SetBrush(m_Brush);
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dc.DrawEllipse(x + m_PosX + m_Width / 3, y + m_PosY + m_Height / 3,
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(m_Width / 3), (m_Width / 3));
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}
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//-----------------------------------------------------------------------------
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// wxHtmlListCell
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//-----------------------------------------------------------------------------
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struct wxHtmlListItemStruct
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{
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wxHtmlContainerCell *mark;
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wxHtmlContainerCell *cont;
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int minWidth;
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int maxWidth;
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};
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class wxHtmlListCell : public wxHtmlContainerCell
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{
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private:
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wxBrush m_Brush;
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int m_NumRows;
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wxHtmlListItemStruct *m_RowInfo;
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void ReallocRows(int rows);
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void ComputeMinMaxWidths();
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int ComputeMaxBase(wxHtmlCell *cell);
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int m_ListmarkWidth;
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public:
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wxHtmlListCell(wxHtmlContainerCell *parent);
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virtual ~wxHtmlListCell();
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void AddRow(wxHtmlContainerCell *mark, wxHtmlContainerCell *cont);
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virtual void Layout(int w);
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wxDECLARE_NO_COPY_CLASS(wxHtmlListCell);
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};
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wxHtmlListCell::wxHtmlListCell(wxHtmlContainerCell *parent) : wxHtmlContainerCell(parent)
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{
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m_NumRows = 0;
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m_RowInfo = 0;
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m_ListmarkWidth = 0;
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}
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wxHtmlListCell::~wxHtmlListCell()
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{
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if (m_RowInfo) free(m_RowInfo);
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}
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int wxHtmlListCell::ComputeMaxBase(wxHtmlCell *cell)
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{
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if(!cell)
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return 0;
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wxHtmlCell *child = cell->GetFirstChild();
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while(child)
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{
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int base = ComputeMaxBase( child );
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if ( base > 0 ) return base + child->GetPosY();
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child = child->GetNext();
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}
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return cell->GetHeight() - cell->GetDescent();
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}
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void wxHtmlListCell::Layout(int w)
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{
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wxHtmlCell::Layout(w);
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ComputeMinMaxWidths();
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m_Width = wxMax(m_Width, wxMin(w, GetMaxTotalWidth()));
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int s_width = m_Width - m_IndentLeft;
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int vpos = 0;
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for (int r = 0; r < m_NumRows; r++)
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{
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// do layout first time to layout contents and adjust pos
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m_RowInfo[r].mark->Layout(m_ListmarkWidth);
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m_RowInfo[r].cont->Layout(s_width - m_ListmarkWidth);
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const int base_mark = ComputeMaxBase( m_RowInfo[r].mark );
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const int base_cont = ComputeMaxBase( m_RowInfo[r].cont );
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const int adjust_mark = vpos + wxMax(base_cont-base_mark,0);
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const int adjust_cont = vpos + wxMax(base_mark-base_cont,0);
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m_RowInfo[r].mark->SetPos(m_IndentLeft, adjust_mark);
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m_RowInfo[r].cont->SetPos(m_IndentLeft + m_ListmarkWidth, adjust_cont);
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vpos = wxMax(adjust_mark + m_RowInfo[r].mark->GetHeight(),
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adjust_cont + m_RowInfo[r].cont->GetHeight());
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}
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m_Height = vpos;
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}
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void wxHtmlListCell::AddRow(wxHtmlContainerCell *mark, wxHtmlContainerCell *cont)
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{
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ReallocRows(++m_NumRows);
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m_RowInfo[m_NumRows - 1].mark = mark;
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m_RowInfo[m_NumRows - 1].cont = cont;
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}
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void wxHtmlListCell::ReallocRows(int rows)
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{
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m_RowInfo = (wxHtmlListItemStruct*) realloc(m_RowInfo, sizeof(wxHtmlListItemStruct) * rows);
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m_RowInfo[rows - 1].mark = NULL;
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m_RowInfo[rows - 1].cont = NULL;
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m_RowInfo[rows - 1].minWidth = 0;
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m_RowInfo[rows - 1].maxWidth = 0;
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m_NumRows = rows;
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}
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void wxHtmlListCell::ComputeMinMaxWidths()
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{
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if (m_NumRows == 0) return;
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m_MaxTotalWidth = 0;
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m_Width = 0;
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for (int r = 0; r < m_NumRows; r++)
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{
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wxHtmlListItemStruct& row = m_RowInfo[r];
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row.mark->Layout(1);
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row.cont->Layout(1);
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int maxWidth = row.cont->GetMaxTotalWidth();
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int width = row.cont->GetWidth();
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if (row.mark->GetWidth() > m_ListmarkWidth)
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m_ListmarkWidth = row.mark->GetWidth();
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if (maxWidth > m_MaxTotalWidth)
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m_MaxTotalWidth = maxWidth;
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if (width > m_Width)
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m_Width = width;
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}
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m_Width += m_ListmarkWidth + m_IndentLeft;
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m_MaxTotalWidth += m_ListmarkWidth + m_IndentLeft;
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}
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//-----------------------------------------------------------------------------
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// wxHtmlListcontentCell
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//-----------------------------------------------------------------------------
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class wxHtmlListcontentCell : public wxHtmlContainerCell
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{
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public:
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wxHtmlListcontentCell(wxHtmlContainerCell *p) : wxHtmlContainerCell(p) {}
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virtual void Layout(int w) {
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// Reset top indentation, fixes <li><p>
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SetIndent(0, wxHTML_INDENT_TOP);
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wxHtmlContainerCell::Layout(w);
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}
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};
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//-----------------------------------------------------------------------------
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// The list handler:
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//-----------------------------------------------------------------------------
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TAG_HANDLER_BEGIN(OLULLI, "OL,UL,LI")
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TAG_HANDLER_VARS
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wxHtmlListCell *m_List;
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int m_Numbering;
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// this is number of actual item of list or 0 for dots
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TAG_HANDLER_CONSTR(OLULLI)
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{
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m_List = NULL;
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m_Numbering = 0;
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}
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TAG_HANDLER_PROC(tag)
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{
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wxHtmlContainerCell *c;
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// List Item:
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if (m_List && tag.GetName() == wxT("LI"))
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{
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c = m_WParser->SetContainer(new wxHtmlContainerCell(m_List));
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c->SetAlignVer(wxHTML_ALIGN_TOP);
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wxHtmlContainerCell *mark = c;
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c->SetWidthFloat(2 * m_WParser->GetCharWidth(), wxHTML_UNITS_PIXELS);
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if (m_Numbering == 0)
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{
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// Centering gives more space after the bullet
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c->SetAlignHor(wxHTML_ALIGN_CENTER);
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c->InsertCell(new wxHtmlListmarkCell(m_WParser->GetDC(), m_WParser->GetActualColor()));
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}
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else
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{
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c->SetAlignHor(wxHTML_ALIGN_RIGHT);
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wxString markStr;
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markStr.Printf(wxT("%i. "), m_Numbering);
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c->InsertCell(new wxHtmlWordCell(markStr, *(m_WParser->GetDC())));
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}
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m_WParser->CloseContainer();
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c = m_WParser->OpenContainer();
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m_List->AddRow(mark, c);
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c = m_WParser->OpenContainer();
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m_WParser->SetContainer(new wxHtmlListcontentCell(c));
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if (m_Numbering != 0) m_Numbering++;
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}
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// Begin of List (not-numbered): "UL", "OL"
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else if (tag.GetName() == wxT("UL") || tag.GetName() == wxT("OL"))
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{
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int oldnum = m_Numbering;
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if (tag.GetName() == wxT("UL")) m_Numbering = 0;
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else m_Numbering = 1;
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wxHtmlContainerCell *oldcont;
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oldcont = c = m_WParser->OpenContainer();
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wxHtmlListCell *oldList = m_List;
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m_List = new wxHtmlListCell(c);
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m_List->SetIndent(2 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);
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ParseInner(tag);
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m_WParser->SetContainer(oldcont);
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m_WParser->CloseContainer();
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m_Numbering = oldnum;
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m_List = oldList;
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return true;
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}
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return false;
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}
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TAG_HANDLER_END(OLULLI)
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TAGS_MODULE_BEGIN(List)
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TAGS_MODULE_ADD(OLULLI)
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TAGS_MODULE_END(List)
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#endif
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