added HTML printing
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4030 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
570
src/html/htmprint.cpp
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570
src/html/htmprint.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: htmprint.cpp
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// Purpose: html printing classes
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// Author: Vaclav Slavik
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// Created: 25/09/99
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// RCS-ID: $Id$
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// Copyright: (c) Vaclav Slavik, 1999
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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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// For compilers that support precompilation, includes "wx/wx.h".
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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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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#if wxUSE_PRINTING_ARCHITECTURE
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#include "wx/print.h"
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#include "wx/printdlg.h"
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#include "wx/html/htmprint.h"
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#include "wx/wxhtml.h"
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#include "wx/wfstream.h"
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//--------------------------------------------------------------------------------
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// wxHtmlDCRenderer
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//--------------------------------------------------------------------------------
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wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
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{
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m_DC = NULL;
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m_Width = m_Height = 0;
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m_Cells = NULL;
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m_Parser = new wxHtmlWinParser(NULL);
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m_FS = new wxFileSystem();
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m_Parser -> SetFS(m_FS);
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m_Scale = 1.0;
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}
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wxHtmlDCRenderer::~wxHtmlDCRenderer()
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{
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if (m_Cells) delete m_Cells;
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if (m_Parser) delete m_Parser;
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if (m_FS) delete m_FS;
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}
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void wxHtmlDCRenderer::SetDC(wxDC *dc, int maxwidth)
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{
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int dx, dy;
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wxDisplaySize(&dx, &dy);
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m_MaxWidth = maxwidth;
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#if 0
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m_Scale = (float)dx * 2 / 3 / (float)maxwidth;
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// let the width of A4 is approximately 2/3 the screen width
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#endif
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m_Scale = (float)800 / (float)maxwidth;
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// for now, assume screen width = 800 => good results
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m_DC = dc;
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m_Parser -> SetDC(dc);
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}
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void wxHtmlDCRenderer::SetSize(int width, int height)
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{
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m_Width = (int)(width * m_Scale);
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m_Height = (int)(height * m_Scale);
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}
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void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
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{
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if (m_DC == NULL) return;
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if (m_Cells != NULL) delete m_Cells;
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m_FS -> ChangePathTo(basepath, isdir);
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m_DC -> SetUserScale(1.0, 1.0);
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m_Cells = (wxHtmlContainerCell*) m_Parser -> Parse(html);
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m_Cells -> SetIndent(0, HTML_INDENT_ALL, HTML_UNITS_PIXELS);
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m_Cells -> Layout(m_Width);
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}
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int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
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{
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int pbreak;
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if (m_Cells == NULL || m_DC == NULL) return 0;
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pbreak = (int)(from * m_Scale + m_Height);
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while (m_Cells -> AdjustPagebreak(&pbreak)) {}
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if (!dont_render) {
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int w, h;
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m_DC -> GetSize(&w, &h);
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float overallScale = (float)(w/(float)m_MaxWidth) / m_Scale;
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m_DC -> SetUserScale(overallScale, overallScale);
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m_DC -> SetBrush(*wxWHITE_BRUSH);
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m_DC -> SetClippingRegion(x * m_Scale, y * m_Scale, m_Width, m_Height);
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m_Cells -> Draw(*m_DC,
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x * m_Scale, (y - from) * m_Scale,
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y * m_Scale, pbreak + (y - from) * m_Scale);
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m_DC -> DestroyClippingRegion();
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}
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if (pbreak < m_Cells -> GetHeight()) return (int)(pbreak / m_Scale);
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else return GetTotalHeight();
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}
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int wxHtmlDCRenderer::GetTotalHeight()
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{
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if (m_Cells) return (int)(m_Cells -> GetHeight() / m_Scale);
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else return 0;
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}
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//--------------------------------------------------------------------------------
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// wxHtmlPrintout
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//--------------------------------------------------------------------------------
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wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
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{
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m_Renderer = new wxHtmlDCRenderer;
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m_RendererHdr = new wxHtmlDCRenderer;
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m_NumPages = HTML_PRINT_MAX_PAGES;
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m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
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m_Headers[0] = m_Headers[1] = wxEmptyString;
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m_Footers[0] = m_Footers[1] = wxEmptyString;
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m_HeaderHeight = m_FooterHeight = 0;
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SetMargins(); // to default values
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}
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wxHtmlPrintout::~wxHtmlPrintout()
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{
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delete m_Renderer;
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delete m_RendererHdr;
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}
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bool wxHtmlPrintout::OnBeginDocument(int start, int end)
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{
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int pageWidth, pageHeight, mm_w, mm_h;
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float ppmm_h, ppmm_v;
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if (!wxPrintout::OnBeginDocument(start, end)) return FALSE;
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GetPageSizePixels(&pageWidth, &pageHeight);
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GetPageSizeMM(&mm_w, &mm_h);
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ppmm_h = (float)pageWidth / mm_w;
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ppmm_v = (float)pageHeight / mm_h;
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/* prepare headers/footers renderer: */
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m_RendererHdr -> SetDC(GetDC(), pageWidth);
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m_RendererHdr -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
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ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
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if (m_Headers[0] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[0], 1));
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m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
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}
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else if (m_Headers[1] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[1], 1));
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m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
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}
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if (m_Footers[0] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[0], 1));
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m_FooterHeight = m_RendererHdr -> GetTotalHeight();
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}
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else if (m_Footers[1] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[1], 1));
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m_FooterHeight = m_RendererHdr -> GetTotalHeight();
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}
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/* prepare main renderer: */
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m_Renderer -> SetDC(GetDC(), pageWidth);
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m_Renderer -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
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ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
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m_FooterHeight - m_HeaderHeight -
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((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
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((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
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);
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m_Renderer -> SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
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CountPages();
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return TRUE;
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}
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bool wxHtmlPrintout::OnPrintPage(int page)
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{
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wxDC *dc = GetDC();
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if (dc) {
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if (HasPage(page))
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RenderPage(dc, page);
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return TRUE;
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} else
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return FALSE;
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}
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void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
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{
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*minPage = 1;
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*maxPage = HTML_PRINT_MAX_PAGES;
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*selPageFrom = 1;
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*selPageTo = 1;
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}
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bool wxHtmlPrintout::HasPage(int pageNum)
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{
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return (pageNum >= 1 && pageNum <= m_NumPages);
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}
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void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
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{
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m_Document = html;
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m_BasePath = basepath;
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m_BasePathIsDir = isdir;
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}
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void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
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{
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wxFileSystem fs;
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wxFSFile *ff = fs.OpenFile(htmlfile);
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wxInputStream *st = ff -> GetStream();
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char *t = new char[st -> GetSize() + 1];
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st -> Read(t, st -> GetSize());
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t[st -> GetSize()] = 0;
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wxString doc = wxString(t);
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delete t;
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delete ff;
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SetHtmlText(doc, htmlfile, FALSE);
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}
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void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
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{
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if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
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m_Headers[0] = header;
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if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
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m_Headers[1] = header;
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}
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void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
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{
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if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
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m_Footers[0] = footer;
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if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
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m_Footers[1] = footer;
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}
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void wxHtmlPrintout::CountPages()
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{
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wxBusyCursor wait;
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int pageWidth, pageHeight, mm_w, mm_h;
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float ppmm_h, ppmm_v;
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GetPageSizePixels(&pageWidth, &pageHeight);
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GetPageSizeMM(&mm_w, &mm_h);
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ppmm_h = (float)pageWidth / mm_w;
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ppmm_v = (float)pageHeight / mm_h;
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int pos = 0;
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m_NumPages = 0;
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m_PageBreaks[0] = 0;
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do {
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pos = m_Renderer -> Render(ppmm_h * m_MarginLeft,
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ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
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pos, TRUE);
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m_PageBreaks[++m_NumPages] = pos;
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} while (pos < m_Renderer -> GetTotalHeight());
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}
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void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
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{
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wxBusyCursor wait;
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int pageWidth, pageHeight, mm_w, mm_h;
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float ppmm_h, ppmm_v;
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GetPageSizePixels(&pageWidth, &pageHeight);
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GetPageSizeMM(&mm_w, &mm_h);
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ppmm_h = (float)pageWidth / mm_w;
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ppmm_v = (float)pageHeight / mm_h;
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m_Renderer -> SetDC(dc, pageWidth);
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dc -> SetBackgroundMode(wxTRANSPARENT);
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m_Renderer -> Render(ppmm_h * m_MarginLeft,
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ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
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m_PageBreaks[page-1]);
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m_RendererHdr -> SetDC(dc, pageWidth);
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if (m_Headers[page % 2] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
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m_RendererHdr -> Render(ppmm_h * m_MarginLeft, ppmm_v * m_MarginTop);
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}
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if (m_Footers[page % 2] != wxEmptyString) {
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m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
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m_RendererHdr -> Render(ppmm_h * m_MarginLeft, pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight);
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}
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}
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wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
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{
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wxString r = instr;
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wxString num;
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num.Printf("%i", page);
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r.Replace("@PAGENUM@", num);
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num.Printf("%i", m_NumPages);
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r.Replace("@PAGESCNT@", num);
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return r;
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}
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void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
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{
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m_MarginTop = top;
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m_MarginBottom = bottom;
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m_MarginLeft = left;
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m_MarginRight = right;
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m_MarginSpace = spaces;
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}
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//--------------------------------------------------------------------------------
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// wxHtmlEasyPrinting
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//--------------------------------------------------------------------------------
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wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
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{
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m_Frame = parent_frame;
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m_Name = name;
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m_PrintData = new wxPrintData;
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m_PageSetupData = new wxPageSetupDialogData;
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m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
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m_PageSetupData -> EnableMargins(TRUE);
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m_PageSetupData -> SetMarginTopLeft(wxPoint(25, 25));
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m_PageSetupData -> SetMarginBottomRight(wxPoint(25, 25));
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#if defined(__WXGTK__) || defined(__WXMOTIF__)
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m_PrintData -> SetPrinterCommand("lpr");
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#endif
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}
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wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
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{
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delete m_PrintData;
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delete m_PageSetupData;
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}
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void wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
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{
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wxHtmlPrintout *p1 = CreatePrintout();
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p1 -> SetHtmlFile(htmlfile);
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wxHtmlPrintout *p2 = CreatePrintout();
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p2 -> SetHtmlFile(htmlfile);
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DoPreview(p1, p2);
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}
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void wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
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{
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wxHtmlPrintout *p1 = CreatePrintout();
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p1 -> SetHtmlText(htmltext, basepath, TRUE);
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wxHtmlPrintout *p2 = CreatePrintout();
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p2 -> SetHtmlText(htmltext, basepath, TRUE);
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DoPreview(p1, p2);
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}
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void wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
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{
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wxHtmlPrintout *p = CreatePrintout();
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p -> SetHtmlFile(htmlfile);
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DoPrint(p);
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}
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void wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
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{
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wxHtmlPrintout *p = CreatePrintout();
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p -> SetHtmlText(htmltext, basepath, TRUE);
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DoPrint(p);
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}
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void wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
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{
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// Pass two printout objects: for preview, and possible printing.
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wxPrintDialogData printDialogData(*m_PrintData);
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wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
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if (!preview -> Ok()) {
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delete preview;
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wxMessageBox(_("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _("Previewing"), wxOK);
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}
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else {
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wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
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m_Name + _(" Preview"),
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wxPoint(100, 100), wxSize(500, 500));
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frame -> Centre(wxBOTH);
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frame -> Initialize();
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frame -> Show(TRUE);
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}
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}
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void wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
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{
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wxPrintDialogData printDialogData(*m_PrintData);
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wxPrinter printer(&printDialogData);
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if (!printer.Print(m_Frame, printout, TRUE))
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wxMessageBox(_("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _("Printing"), wxOK);
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else
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(*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
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}
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void wxHtmlEasyPrinting::PrinterSetup()
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{
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wxPrintDialogData printDialogData(*m_PrintData);
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wxPrintDialog printerDialog(m_Frame, &printDialogData);
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||||
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printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
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if (printerDialog.ShowModal() == wxID_OK)
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(*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
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}
|
||||
|
||||
|
||||
|
||||
void wxHtmlEasyPrinting::PageSetup()
|
||||
{
|
||||
m_PageSetupData -> SetPrintData(*m_PrintData);
|
||||
wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
|
||||
|
||||
if (pageSetupDialog.ShowModal() == wxID_OK) {
|
||||
(*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
|
||||
(*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
|
||||
{
|
||||
if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
|
||||
m_Headers[0] = header;
|
||||
if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
|
||||
m_Headers[1] = header;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
|
||||
{
|
||||
if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
|
||||
m_Footers[0] = footer;
|
||||
if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
|
||||
m_Footers[1] = footer;
|
||||
}
|
||||
|
||||
|
||||
|
||||
wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
|
||||
{
|
||||
wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
|
||||
|
||||
p -> SetHeader(m_Headers[0], wxPAGE_EVEN);
|
||||
p -> SetHeader(m_Headers[1], wxPAGE_ODD);
|
||||
p -> SetFooter(m_Footers[0], wxPAGE_EVEN);
|
||||
p -> SetFooter(m_Footers[1], wxPAGE_ODD);
|
||||
|
||||
p -> SetMargins(m_PageSetupData -> GetMarginTopLeft().y,
|
||||
m_PageSetupData -> GetMarginBottomRight().y,
|
||||
m_PageSetupData -> GetMarginTopLeft().x,
|
||||
m_PageSetupData -> GetMarginBottomRight().x);
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
|
||||
|
||||
#endif // wxUSE_PRINTING_ARCHITECTURE
|
||||
Reference in New Issue
Block a user