///////////////////////////////////////////////////////////////////////////// // Name: src/html/m_list.cpp // Purpose: wxHtml module for lists // Author: Vaclav Slavik // RCS-ID: $Id: m_list.cpp 38788 2006-04-18 08:11:26Z ABX $ // Copyright: (c) 1999 Vaclav Slavik // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #if wxUSE_HTML && wxUSE_STREAMS #ifndef WXPRECOMP #include "wx/brush.h" #include "wx/dc.h" #endif #include "wx/html/forcelnk.h" #include "wx/html/m_templ.h" #include "wx/html/htmlcell.h" FORCE_LINK_ME(m_list) //----------------------------------------------------------------------------- // wxHtmlListmarkCell //----------------------------------------------------------------------------- class wxHtmlListmarkCell : public wxHtmlCell { private: wxBrush m_Brush; public: wxHtmlListmarkCell(wxDC *dc, const wxColour& clr); void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, wxHtmlRenderingInfo& info); DECLARE_NO_COPY_CLASS(wxHtmlListmarkCell) }; wxHtmlListmarkCell::wxHtmlListmarkCell(wxDC* dc, const wxColour& clr) : wxHtmlCell(), m_Brush(clr, wxSOLID) { m_Width = dc->GetCharHeight(); m_Height = dc->GetCharHeight(); // bottom of list mark is lined with bottom of letters in next cell m_Descent = m_Height / 3; } void wxHtmlListmarkCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2), wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetBrush(m_Brush); dc.DrawEllipse(x + m_PosX + m_Width / 3, y + m_PosY + m_Height / 3, (m_Width / 3), (m_Width / 3)); } //----------------------------------------------------------------------------- // wxHtmlListCell //----------------------------------------------------------------------------- struct wxHtmlListItemStruct { wxHtmlContainerCell *mark; wxHtmlContainerCell *cont; int minWidth; int maxWidth; }; class wxHtmlListCell : public wxHtmlContainerCell { private: wxBrush m_Brush; int m_NumRows; wxHtmlListItemStruct *m_RowInfo; void ReallocRows(int rows); void ComputeMinMaxWidths(); int ComputeMaxBase(wxHtmlCell *cell); int m_ListmarkWidth; public: wxHtmlListCell(wxHtmlContainerCell *parent); virtual ~wxHtmlListCell(); void AddRow(wxHtmlContainerCell *mark, wxHtmlContainerCell *cont); virtual void Layout(int w); DECLARE_NO_COPY_CLASS(wxHtmlListCell) }; wxHtmlListCell::wxHtmlListCell(wxHtmlContainerCell *parent) : wxHtmlContainerCell(parent) { m_NumRows = 0; m_RowInfo = 0; m_ListmarkWidth = 0; } wxHtmlListCell::~wxHtmlListCell() { if (m_RowInfo) free(m_RowInfo); } int wxHtmlListCell::ComputeMaxBase(wxHtmlCell *cell) { if(!cell) return 0; wxHtmlCell *child = cell->GetFirstChild(); while(child) { int base = ComputeMaxBase( child ); if ( base > 0 ) return base + child->GetPosY(); child = child->GetNext(); } return cell->GetHeight() - cell->GetDescent(); } void wxHtmlListCell::Layout(int w) { wxHtmlCell::Layout(w); ComputeMinMaxWidths(); m_Width = wxMax(m_Width, wxMin(w, GetMaxTotalWidth())); int s_width = m_Width - m_IndentLeft; int vpos = 0; for (int r = 0; r < m_NumRows; r++) { // do layout first time to layout contents and adjust pos m_RowInfo[r].mark->Layout(m_ListmarkWidth); m_RowInfo[r].cont->Layout(s_width - m_ListmarkWidth); const int base_mark = ComputeMaxBase( m_RowInfo[r].mark ); const int base_cont = ComputeMaxBase( m_RowInfo[r].cont ); const int adjust_mark = vpos + wxMax(base_cont-base_mark,0); const int adjust_cont = vpos + wxMax(base_mark-base_cont,0); m_RowInfo[r].mark->SetPos(m_IndentLeft, adjust_mark); m_RowInfo[r].cont->SetPos(m_IndentLeft + m_ListmarkWidth, adjust_cont); vpos = wxMax(adjust_mark + m_RowInfo[r].mark->GetHeight(), adjust_cont + m_RowInfo[r].cont->GetHeight()); } m_Height = vpos; } void wxHtmlListCell::AddRow(wxHtmlContainerCell *mark, wxHtmlContainerCell *cont) { ReallocRows(++m_NumRows); m_RowInfo[m_NumRows - 1].mark = mark; m_RowInfo[m_NumRows - 1].cont = cont; } void wxHtmlListCell::ReallocRows(int rows) { m_RowInfo = (wxHtmlListItemStruct*) realloc(m_RowInfo, sizeof(wxHtmlListItemStruct) * rows); m_RowInfo[rows - 1].mark = NULL; m_RowInfo[rows - 1].cont = NULL; m_RowInfo[rows - 1].minWidth = 0; m_RowInfo[rows - 1].maxWidth = 0; m_NumRows = rows; } void wxHtmlListCell::ComputeMinMaxWidths() { if (m_NumRows == 0) return; m_MaxTotalWidth = 0; m_Width = 0; for (int r = 0; r < m_NumRows; r++) { wxHtmlListItemStruct& row = m_RowInfo[r]; row.mark->Layout(1); row.cont->Layout(1); int maxWidth = row.cont->GetMaxTotalWidth(); int width = row.cont->GetWidth(); if (row.mark->GetWidth() > m_ListmarkWidth) m_ListmarkWidth = row.mark->GetWidth(); if (maxWidth > m_MaxTotalWidth) m_MaxTotalWidth = maxWidth; if (width > m_Width) m_Width = width; } m_Width += m_ListmarkWidth + m_IndentLeft; m_MaxTotalWidth += m_ListmarkWidth + m_IndentLeft; } //----------------------------------------------------------------------------- // wxHtmlListcontentCell //----------------------------------------------------------------------------- class wxHtmlListcontentCell : public wxHtmlContainerCell { public: wxHtmlListcontentCell(wxHtmlContainerCell *p) : wxHtmlContainerCell(p) {} virtual void Layout(int w) { // Reset top indentation, fixes

  • SetIndent(0, wxHTML_INDENT_TOP); wxHtmlContainerCell::Layout(w); } }; //----------------------------------------------------------------------------- // The list handler: //----------------------------------------------------------------------------- TAG_HANDLER_BEGIN(OLULLI, "OL,UL,LI") TAG_HANDLER_VARS wxHtmlListCell *m_List; int m_Numbering; // this is number of actual item of list or 0 for dots TAG_HANDLER_CONSTR(OLULLI) { m_List = NULL; m_Numbering = 0; } TAG_HANDLER_PROC(tag) { wxHtmlContainerCell *c; // List Item: if (m_List && tag.GetName() == wxT("LI")) { c = m_WParser->SetContainer(new wxHtmlContainerCell(m_List)); c->SetAlignVer(wxHTML_ALIGN_TOP); wxHtmlContainerCell *mark = c; c->SetWidthFloat(2 * m_WParser->GetCharWidth(), wxHTML_UNITS_PIXELS); if (m_Numbering == 0) { // Centering gives more space after the bullet c->SetAlignHor(wxHTML_ALIGN_CENTER); c->InsertCell(new wxHtmlListmarkCell(m_WParser->GetDC(), m_WParser->GetActualColor())); } else { c->SetAlignHor(wxHTML_ALIGN_RIGHT); wxString markStr; markStr.Printf(wxT("%i. "), m_Numbering); c->InsertCell(new wxHtmlWordCell(markStr, *(m_WParser->GetDC()))); } m_WParser->CloseContainer(); c = m_WParser->OpenContainer(); m_List->AddRow(mark, c); c = m_WParser->OpenContainer(); m_WParser->SetContainer(new wxHtmlListcontentCell(c)); if (m_Numbering != 0) m_Numbering++; } // Begin of List (not-numbered): "UL", "OL" else if (tag.GetName() == wxT("UL") || tag.GetName() == wxT("OL")) { int oldnum = m_Numbering; if (tag.GetName() == wxT("UL")) m_Numbering = 0; else m_Numbering = 1; wxHtmlContainerCell *oldcont; oldcont = c = m_WParser->OpenContainer(); wxHtmlListCell *oldList = m_List; m_List = new wxHtmlListCell(c); m_List->SetIndent(2 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT); ParseInner(tag); m_WParser->SetContainer(oldcont); m_WParser->CloseContainer(); m_Numbering = oldnum; m_List = oldList; return true; } return false; } TAG_HANDLER_END(OLULLI) TAGS_MODULE_BEGIN(List) TAGS_MODULE_ADD(OLULLI) TAGS_MODULE_END(List) #endif