making wxHTML 8.3 compliant
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3796 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
494
src/html/m_tables.cpp
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494
src/html/m_tables.cpp
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@@ -0,0 +1,494 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: mod_tables.cpp
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// Purpose: wxHtml module for tables
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// Author: Vaclav Slavik
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include <wx/wxprec.h>
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#if wxUSE_HTML
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#ifdef __BORDLANDC__
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#pragma hdrstop
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#endif
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#ifndef WXPRECOMP
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#include <wx/wx.h>
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#endif
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/*
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REMARKS:
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1. This version of mod_tables doesn't support auto-layout algorithm.
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This means that all columns are of same width unless explicitly specified.
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*/
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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(mod_tables)
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#define TABLE_BORDER_CLR_1 wxColour(0xC5, 0xC2, 0xC5)
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#define TABLE_BORDER_CLR_2 wxColour(0x62, 0x61, 0x62)
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//-----------------------------------------------------------------------------
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// wxHtmlTableCell
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//-----------------------------------------------------------------------------
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typedef struct {
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int width, units; // universal
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int leftpos, pixwidth, maxrealwidth; // temporary (depends on width of table)
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} colStruct;
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typedef enum {
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cellSpan,
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cellUsed,
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cellFree
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} cellState;
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typedef struct {
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wxHtmlContainerCell *cont;
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int colspan, rowspan;
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int minheight, valign;
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cellState flag;
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} cellStruct;
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class wxHtmlTableCell : public wxHtmlContainerCell
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{
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protected:
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/* These are real attributes: */
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bool m_HasBorders;
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// should we draw borders or not?
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int m_NumCols, m_NumRows;
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// number of columns; rows
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colStruct *m_ColsInfo;
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// array of column information
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cellStruct **m_CellInfo;
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// 2D array of all cells in the table : m_CellInfo[row][column]
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int m_Spacing;
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// spaces between cells
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int m_Padding;
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// cells internal indentation
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private:
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/* ...and these are valid only during parsing of table: */
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int m_ActualCol, m_ActualRow;
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// number of actual column (ranging from 0..m_NumCols)
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// default values (for table and row):
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int m_tBkg, m_rBkg;
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wxString m_tValign, m_rValign;
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public:
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wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag);
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~wxHtmlTableCell();
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virtual void Layout(int w);
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void AddRow(const wxHtmlTag& tag);
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void AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag);
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private:
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void ReallocCols(int cols);
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void ReallocRows(int rows);
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// reallocates memory to given number of cols/rows
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// and changes m_NumCols/m_NumRows value to reflect this change
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// NOTE! You CAN'T change m_NumCols/m_NumRows before calling this!!
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};
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wxHtmlTableCell::wxHtmlTableCell(wxHtmlContainerCell *parent, const wxHtmlTag& tag)
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: wxHtmlContainerCell(parent)
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{
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m_HasBorders = tag.HasParam("BORDER");
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m_ColsInfo = NULL;
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m_NumCols = m_NumRows = 0;
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m_CellInfo = NULL;
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m_ActualCol = m_ActualRow = -1;
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/* scan params: */
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m_tBkg = m_rBkg = -1;
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if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_tBkg);
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if (tag.HasParam("VALIGN")) m_tValign = tag.GetParam("VALIGN"); else m_tValign = wxEmptyString;
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if (tag.HasParam("CELLSPACING") && tag.ScanParam("CELLSPACING", "%i", &m_Spacing) == 1) {} else m_Spacing = 2;
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if (tag.HasParam("CELLPADDING") && tag.ScanParam("CELLPADDING", "%i", &m_Padding) == 1) {} else m_Padding = 3;
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if (m_HasBorders)
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SetBorder(TABLE_BORDER_CLR_1, TABLE_BORDER_CLR_2);
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}
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wxHtmlTableCell::~wxHtmlTableCell()
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{
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if (m_ColsInfo) free(m_ColsInfo);
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if (m_CellInfo) {
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for (int i = 0; i < m_NumRows; i++)
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free(m_CellInfo[i]);
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free(m_CellInfo);
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}
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}
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void wxHtmlTableCell::ReallocCols(int cols)
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{
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int i,j;
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for (i = 0; i < m_NumRows; i++) {
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m_CellInfo[i] = (cellStruct*) realloc(m_CellInfo[i], sizeof(cellStruct) * cols);
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for (j = m_NumCols; j < cols; j++)
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m_CellInfo[i][j].flag = cellFree;
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}
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m_ColsInfo = (colStruct*) realloc(m_ColsInfo, sizeof(colStruct) * cols);
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for (j = m_NumCols; j < cols; j++) {
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m_ColsInfo[j].width = 0;
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m_ColsInfo[j].units = HTML_UNITS_PERCENT;
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}
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m_NumCols = cols;
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}
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void wxHtmlTableCell::ReallocRows(int rows)
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{
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m_CellInfo = (cellStruct**) realloc(m_CellInfo, sizeof(cellStruct*) * rows);
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if (m_NumCols != 0) {
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int x = rows - 1;
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m_CellInfo[x] = (cellStruct*) malloc(sizeof(cellStruct) * m_NumCols);
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for (int i = 0; i < m_NumCols; i++)
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m_CellInfo[x][i].flag = cellFree;
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}
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else
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m_CellInfo[rows - 1] = NULL;
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m_NumRows = rows;
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}
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void wxHtmlTableCell::AddRow(const wxHtmlTag& tag)
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{
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if (m_ActualRow + 1 > m_NumRows - 1)
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ReallocRows(m_ActualRow + 2);
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m_ActualRow++;
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m_ActualCol = -1;
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/* scan params: */
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m_rBkg = m_tBkg;
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if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &m_rBkg);
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if (tag.HasParam("VALIGN")) m_rValign = tag.GetParam("VALIGN"); else m_rValign = m_tValign;
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}
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void wxHtmlTableCell::AddCell(wxHtmlContainerCell *cell, const wxHtmlTag& tag)
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{
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do {
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m_ActualCol++;
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} while ((m_ActualCol < m_NumCols) && (m_CellInfo[m_ActualRow][m_ActualCol].flag != cellFree));
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if (m_ActualCol > m_NumCols - 1)
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ReallocCols(m_ActualCol + 1);
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int r = m_ActualRow, c = m_ActualCol;
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m_CellInfo[r][c].cont = cell;
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m_CellInfo[r][c].colspan = 1;
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m_CellInfo[r][c].rowspan = 1;
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m_CellInfo[r][c].flag = cellUsed;
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m_CellInfo[r][c].minheight = 0;
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m_CellInfo[r][c].valign = HTML_ALIGN_TOP;
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/* scan for parameters: */
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// width:
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{
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if (tag.HasParam("WIDTH")) {
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wxString wd = tag.GetParam("WIDTH");
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if (wd[wd.Length()-1] == '%') {
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sscanf(wd.c_str(), "%i%%", &m_ColsInfo[c].width);
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m_ColsInfo[c].units = HTML_UNITS_PERCENT;
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}
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else {
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sscanf(wd.c_str(), "%i", &m_ColsInfo[c].width);
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m_ColsInfo[c].units = HTML_UNITS_PIXELS;
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}
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}
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}
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// spanning:
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{
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if (tag.HasParam("COLSPAN")) tag.ScanParam("COLSPAN", "%i", &m_CellInfo[r][c].colspan);
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if (tag.HasParam("ROWSPAN")) tag.ScanParam("ROWSPAN", "%i", &m_CellInfo[r][c].rowspan);
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if ((m_CellInfo[r][c].colspan != 1) || (m_CellInfo[r][c].rowspan != 1)) {
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int i, j;
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if (r + m_CellInfo[r][c].rowspan > m_NumRows) ReallocRows(r + m_CellInfo[r][c].rowspan);
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if (c + m_CellInfo[r][c].colspan > m_NumCols) ReallocCols(c + m_CellInfo[r][c].colspan);
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for (i = r; i < r + m_CellInfo[r][c].rowspan; i++)
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for (j = c; j < c + m_CellInfo[r][c].colspan; j++)
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m_CellInfo[i][j].flag = cellSpan;
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m_CellInfo[r][c].flag = cellUsed;
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}
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}
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//background color:
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{
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int bk = m_rBkg;
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if (tag.HasParam("BGCOLOR")) tag.ScanParam("BGCOLOR", "#%lX", &bk);
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if (bk != -1) {
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wxColour clr = wxColour((bk & 0xFF0000) >> 16 , (bk & 0x00FF00) >> 8, (bk & 0x0000FF));
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cell -> SetBackgroundColour(clr);
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}
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}
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if (m_HasBorders)
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cell -> SetBorder(TABLE_BORDER_CLR_2, TABLE_BORDER_CLR_1);
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// vertical alignment:
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{
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wxString valign;
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if (tag.HasParam("VALIGN")) valign = tag.GetParam("VALIGN"); else valign = m_tValign;
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valign.MakeUpper();
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if (valign == "TOP") m_CellInfo[r][c].valign = HTML_ALIGN_TOP;
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else if (valign == "BOTTOM") m_CellInfo[r][c].valign = HTML_ALIGN_BOTTOM;
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else m_CellInfo[r][c].valign = HTML_ALIGN_CENTER;
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}
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cell -> SetIndent(m_Padding, HTML_INDENT_ALL, HTML_UNITS_PIXELS);
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}
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void wxHtmlTableCell::Layout(int w)
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{
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/*
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WIDTH ADJUSTING :
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*/
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if (m_WidthFloatUnits == HTML_UNITS_PERCENT) {
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if (m_WidthFloat < 0) m_Width = (100 + m_WidthFloat) * w / 100;
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else m_Width = m_WidthFloat * w / 100;
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}
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else {
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if (m_WidthFloat < 0) m_Width = w + m_WidthFloat;
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else m_Width = m_WidthFloat;
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}
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/*
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LAYOUTING :
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*/
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/* 1. setup columns widths: */
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{
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int wpix = m_Width - (m_NumCols + 1) * m_Spacing;
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int i, j;
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int wtemp = 0;
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// 1a. setup fixed-width columns:
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for (i = 0; i < m_NumCols; i++)
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if (m_ColsInfo[i].units == HTML_UNITS_PIXELS)
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wpix -= (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width);
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// 1b. setup floating-width columns:
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for (i = 0; i < m_NumCols; i++)
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if ((m_ColsInfo[i].units == HTML_UNITS_PERCENT) && (m_ColsInfo[i].width != 0))
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wtemp += (m_ColsInfo[i].pixwidth = m_ColsInfo[i].width * wpix / 100);
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wpix -= wtemp;
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// 1c. setup defalut columns (no width specification supplied):
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// NOTE! This algorithm doesn't conform to HTML standard : it assigns equal widths
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// instead of optimal
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for (i = j = 0; i < m_NumCols; i++)
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if (m_ColsInfo[i].width == 0) j++;
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for (i = 0; i < m_NumCols; i++)
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if (m_ColsInfo[i].width == 0)
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m_ColsInfo[i].pixwidth = wpix / j;
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}
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/* 2. compute positions of columns: */
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{
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int wpos = m_Spacing;
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for (int i = 0; i < m_NumCols; i++) {
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m_ColsInfo[i].leftpos = wpos;
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wpos += m_ColsInfo[i].pixwidth + m_Spacing;
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}
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}
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/* 3. sub-layout all cells: */
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{
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int *ypos = new int[m_NumRows + 1];
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int actcol, actrow;
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int fullwid;
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wxHtmlContainerCell *actcell;
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for (actrow = 0; actrow <= m_NumRows; actrow++) ypos[actrow] = m_Spacing;
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for (actrow = 0; actrow < m_NumRows; actrow++) {
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// 3a. sub-layout and detect max height:
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for (actcol = 0; actcol < m_NumCols; actcol++) {
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if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
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actcell = m_CellInfo[actrow][actcol].cont;
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fullwid = 0;
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for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
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fullwid += m_ColsInfo[i].pixwidth;
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actcell -> SetMinHeight(m_CellInfo[actrow][actcol].minheight, m_CellInfo[actrow][actcol].valign);
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actcell -> Layout(fullwid);
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if (ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing > ypos[actrow + m_CellInfo[actrow][actcol].rowspan])
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ypos[actrow + m_CellInfo[actrow][actcol].rowspan] =
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ypos[actrow] + actcell -> GetHeight() + m_CellInfo[actrow][actcol].rowspan * m_Spacing;
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}
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}
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for (actrow = 0; actrow < m_NumRows; actrow++) {
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// 3b. place cells in row & let'em all have same height:
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for (actcol = 0; actcol < m_NumCols; actcol++) {
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if (m_CellInfo[actrow][actcol].flag != cellUsed) continue;
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actcell = m_CellInfo[actrow][actcol].cont;
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actcell -> SetMinHeight(
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ypos[actrow + m_CellInfo[actrow][actcol].rowspan] - ypos[actrow] - m_CellInfo[actrow][actcol].rowspan * m_Spacing,
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m_CellInfo[actrow][actcol].valign);
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fullwid = 0;
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for (int i = actcol; i < m_CellInfo[actrow][actcol].colspan + actcol; i++)
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fullwid += m_ColsInfo[i].pixwidth;
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actcell -> Layout(fullwid);
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actcell -> SetPos(m_ColsInfo[actcol].leftpos, ypos[actrow]);
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}
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}
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m_Height = ypos[m_NumRows];
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delete[] ypos;
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}
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}
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//-----------------------------------------------------------------------------
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// The tables handler:
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//-----------------------------------------------------------------------------
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TAG_HANDLER_BEGIN(TABLE, "TABLE,TR,TD,TH")
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TAG_HANDLER_VARS
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wxHtmlTableCell* m_Table;
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wxString m_tAlign, m_rAlign;
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int m_OldAlign;
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TAG_HANDLER_CONSTR(TABLE)
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{
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m_Table = NULL;
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m_tAlign = m_rAlign = wxEmptyString;
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m_OldAlign = HTML_ALIGN_LEFT;
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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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// new table started, backup upper-level table (if any) and create new:
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if (tag.GetName() == "TABLE") {
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wxHtmlTableCell *oldt = m_Table;
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wxHtmlContainerCell *oldcont;
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int m_OldAlign;
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oldcont = c = m_WParser -> OpenContainer();
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c -> SetWidthFloat(tag);
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m_Table = new wxHtmlTableCell(c, tag);
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m_OldAlign = m_WParser -> GetAlign();
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m_tAlign = wxEmptyString;
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if (tag.HasParam("ALIGN")) m_tAlign = tag.GetParam("ALIGN");
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ParseInner(tag);
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m_WParser -> SetAlign(m_OldAlign);
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m_WParser -> SetContainer(oldcont);
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m_WParser -> CloseContainer();
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m_Table = oldt;
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return TRUE;
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}
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else if (m_Table && !tag.IsEnding()) {
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// new row in table
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if (tag.GetName() == "TR") {
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m_Table -> AddRow(tag);
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m_rAlign = m_tAlign;
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if (tag.HasParam("ALIGN")) m_rAlign = tag.GetParam("ALIGN");
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}
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// new cell
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else {
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m_WParser -> SetAlign(m_OldAlign);
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c = m_WParser -> SetContainer(new wxHtmlContainerCell(m_Table));
|
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m_Table -> AddCell(c, tag);
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m_WParser -> OpenContainer();
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if (tag.GetName() == "TH") /*header style*/ {
|
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m_WParser -> SetAlign(HTML_ALIGN_CENTER);
|
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}
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{
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wxString als;
|
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|
||||
als = m_rAlign;
|
||||
if (tag.HasParam("ALIGN")) als = tag.GetParam("ALIGN");
|
||||
als.MakeUpper();
|
||||
if (als == "RIGHT") m_WParser -> SetAlign(HTML_ALIGN_RIGHT);
|
||||
else if (als == "CENTER") m_WParser -> SetAlign(HTML_ALIGN_CENTER);
|
||||
}
|
||||
m_WParser -> OpenContainer();
|
||||
}
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
TAG_HANDLER_END(TABLE)
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
TAGS_MODULE_BEGIN(Tables)
|
||||
|
||||
TAGS_MODULE_ADD(TABLE)
|
||||
|
||||
TAGS_MODULE_END(Tables)
|
||||
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user