[wxWidgets.git] / src / html / htmprint.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        htmprint.cpp
// Purpose:     html printing classes
// Author:      Vaclav Slavik
// Created:     25/09/99
// RCS-ID:      $Id$
// Copyright:   (c) Vaclav Slavik, 1999
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////


#ifdef __GNUG__
#pragma implementation
#endif

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

#if wxUSE_PRINTING_ARCHITECTURE

#include "wx/print.h"
#include "wx/printdlg.h"
#include "wx/html/htmprint.h"
#include "wx/wxhtml.h"
#include "wx/wfstream.h"


//--------------------------------------------------------------------------------
// wxHtmlDCRenderer
//--------------------------------------------------------------------------------


wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
{
    m_DC = NULL;
    m_Width = m_Height = 0;
    m_Cells = NULL;
    m_Parser = new wxHtmlWinParser(NULL);
    m_FS = new wxFileSystem();
    m_Parser -> SetFS(m_FS);
    m_Scale = 1.0;
}


wxHtmlDCRenderer::~wxHtmlDCRenderer()
{
    if (m_Cells) delete m_Cells;
    if (m_Parser) delete m_Parser;
    if (m_FS) delete m_FS;
}


void wxHtmlDCRenderer::SetDC(wxDC *dc, int maxwidth)
{
    int dx, dy;

    wxDisplaySize(&dx, &dy);
    m_MaxWidth = maxwidth;
#if 0
    m_Scale = (float)dx * 2 / 3 / (float)maxwidth;
            // let the width of A4 is approximately 2/3 the screen width
#endif
    m_Scale = (float)800 / (float)maxwidth;
            // for now, assume screen width = 800 => good results

    m_DC = dc;
    m_Parser -> SetDC(dc);
}


void wxHtmlDCRenderer::SetSize(int width, int height)
{
    m_Width = (int)(width * m_Scale);
    m_Height = (int)(height * m_Scale);
}


void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
{
    if (m_DC == NULL) return;

    if (m_Cells != NULL) delete m_Cells;
    
    m_FS -> ChangePathTo(basepath, isdir);
    m_DC -> SetUserScale(1.0, 1.0);
    m_Cells = (wxHtmlContainerCell*) m_Parser -> Parse(html);
    m_Cells -> SetIndent(0, HTML_INDENT_ALL, HTML_UNITS_PIXELS);
    m_Cells -> Layout(m_Width);
}


int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
{
    int pbreak;
    
    if (m_Cells == NULL || m_DC == NULL) return 0;
    
    pbreak = (int)(from * m_Scale + m_Height);
    while (m_Cells -> AdjustPagebreak(&pbreak)) {}
    
    if (!dont_render) {
        int w, h;
        m_DC -> GetSize(&w, &h);
        float overallScale = (float)(w/(float)m_MaxWidth) / m_Scale;
        m_DC -> SetUserScale(overallScale, overallScale);

        m_DC -> SetBrush(*wxWHITE_BRUSH);
        
        m_DC -> SetClippingRegion(x * m_Scale, y * m_Scale, m_Width, m_Height);
        m_Cells -> Draw(*m_DC, 
                        x * m_Scale, (y - from) * m_Scale, 
                        y * m_Scale, pbreak + (y - from) * m_Scale);
        m_DC -> DestroyClippingRegion();
    }
    
    if (pbreak < m_Cells -> GetHeight()) return (int)(pbreak / m_Scale);
    else return GetTotalHeight();
}


int wxHtmlDCRenderer::GetTotalHeight()
{
    if (m_Cells) return (int)(m_Cells -> GetHeight() / m_Scale);
    else return 0;
}


//--------------------------------------------------------------------------------
// wxHtmlPrintout
//--------------------------------------------------------------------------------


wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
{
    m_Renderer = new wxHtmlDCRenderer;
    m_RendererHdr = new wxHtmlDCRenderer;
    m_NumPages = HTML_PRINT_MAX_PAGES;
    m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
    m_Headers[0] = m_Headers[1] = wxEmptyString;
    m_Footers[0] = m_Footers[1] = wxEmptyString;
    m_HeaderHeight = m_FooterHeight = 0;
    SetMargins(); // to default values
}


wxHtmlPrintout::~wxHtmlPrintout()
{
    delete m_Renderer;
    delete m_RendererHdr;
}


bool wxHtmlPrintout::OnBeginDocument(int start, int end)
{
    int pageWidth, pageHeight, mm_w, mm_h;
    float ppmm_h, ppmm_v;
    
    if (!wxPrintout::OnBeginDocument(start, end)) return FALSE;

    GetPageSizePixels(&pageWidth, &pageHeight);
    GetPageSizeMM(&mm_w, &mm_h);
    ppmm_h = (float)pageWidth / mm_w;
    ppmm_v = (float)pageHeight / mm_h;

    /* prepare headers/footers renderer: */
    
    m_RendererHdr -> SetDC(GetDC(), pageWidth);
    m_RendererHdr -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop), 
                          ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
    if (m_Headers[0] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[0], 1));
        m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
    }
    else if (m_Headers[1] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[1], 1));
        m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
    }
    if (m_Footers[0] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[0], 1));
        m_FooterHeight = m_RendererHdr -> GetTotalHeight();
    }
    else if (m_Footers[1] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[1], 1));
        m_FooterHeight = m_RendererHdr -> GetTotalHeight();
    }
    
    /* prepare main renderer: */
    m_Renderer -> SetDC(GetDC(), pageWidth);
    m_Renderer -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop), 
                          ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) - 
                          m_FooterHeight - m_HeaderHeight -
                          ((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
                          ((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
                          );
    m_Renderer -> SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
    CountPages();
    
    return TRUE;
}


bool wxHtmlPrintout::OnPrintPage(int page)
{
    wxDC *dc = GetDC();
    if (dc) {
        if (HasPage(page))
            RenderPage(dc, page);
        return TRUE;
    } else
        return FALSE;
}


void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
{
    *minPage = 1;
    *maxPage = HTML_PRINT_MAX_PAGES;
    *selPageFrom = 1;
    *selPageTo = 1;
}


bool wxHtmlPrintout::HasPage(int pageNum)
{
    return (pageNum >= 1 && pageNum <= m_NumPages);
}


void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
{
    m_Document = html;
    m_BasePath = basepath;
    m_BasePathIsDir = isdir;
}


void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
{
    wxFileSystem fs;
    wxFSFile *ff = fs.OpenFile(htmlfile);
    wxInputStream *st = ff -> GetStream();
    char *t = new char[st -> GetSize() + 1];
    st -> Read(t, st -> GetSize());
    t[st -> GetSize()] = 0;
    
    wxString doc = wxString(t);
    delete t;
    delete ff;
    
    SetHtmlText(doc, htmlfile, FALSE);
}


void wxHtmlPrintout::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 wxHtmlPrintout::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;
}


void wxHtmlPrintout::CountPages()
{
    wxBusyCursor wait;
    int pageWidth, pageHeight, mm_w, mm_h;
    float ppmm_h, ppmm_v;

    GetPageSizePixels(&pageWidth, &pageHeight);
    GetPageSizeMM(&mm_w, &mm_h);
    ppmm_h = (float)pageWidth / mm_w;
    ppmm_v = (float)pageHeight / mm_h;

    int pos = 0;

    m_NumPages = 0;
    
    m_PageBreaks[0] = 0;
    do {
        pos = m_Renderer -> Render(ppmm_h * m_MarginLeft, 
                                   ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
                                   pos, TRUE);
        m_PageBreaks[++m_NumPages] = pos;
    } while (pos < m_Renderer -> GetTotalHeight());
}


void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
{
    wxBusyCursor wait;

    int pageWidth, pageHeight, mm_w, mm_h;
    float ppmm_h, ppmm_v;

    GetPageSizePixels(&pageWidth, &pageHeight);
    GetPageSizeMM(&mm_w, &mm_h);
    ppmm_h = (float)pageWidth / mm_w;
    ppmm_v = (float)pageHeight / mm_h;
    
    m_Renderer -> SetDC(dc, pageWidth);

    dc -> SetBackgroundMode(wxTRANSPARENT);

    m_Renderer -> Render(ppmm_h * m_MarginLeft, 
                         ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
                         m_PageBreaks[page-1]);
    
    m_RendererHdr -> SetDC(dc, pageWidth);
    if (m_Headers[page % 2] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
        m_RendererHdr -> Render(ppmm_h * m_MarginLeft, ppmm_v * m_MarginTop);
    }
    if (m_Footers[page % 2] != wxEmptyString) {
        m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
        m_RendererHdr -> Render(ppmm_h * m_MarginLeft, pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight);
    }
}


wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
{
    wxString r = instr;
    wxString num;
    
    num.Printf("%i", page);
    r.Replace("@PAGENUM@", num);

    num.Printf("%i", m_NumPages);
    r.Replace("@PAGESCNT@", num);

    return r;
}


void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
{
    m_MarginTop = top;
    m_MarginBottom = bottom;
    m_MarginLeft = left;
    m_MarginRight = right;
    m_MarginSpace = spaces;
}


//--------------------------------------------------------------------------------
// wxHtmlEasyPrinting
//--------------------------------------------------------------------------------


wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
{
    m_Frame = parent_frame;
    m_Name = name;
    m_PrintData = new wxPrintData;
    m_PageSetupData = new wxPageSetupDialogData;
    m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
    
    m_PageSetupData -> EnableMargins(TRUE);
    m_PageSetupData -> SetMarginTopLeft(wxPoint(25, 25));    
    m_PageSetupData -> SetMarginBottomRight(wxPoint(25, 25));

#if defined(__WXGTK__) || defined(__WXMOTIF__)
    m_PrintData -> SetPrinterCommand("lpr");
#endif
}


wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
{
    delete m_PrintData;
    delete m_PageSetupData;
}


void wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
{
    wxHtmlPrintout *p1 = CreatePrintout();
    p1 -> SetHtmlFile(htmlfile);
    wxHtmlPrintout *p2 = CreatePrintout();
    p2 -> SetHtmlFile(htmlfile);
    DoPreview(p1, p2);
}


void wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
{
    wxHtmlPrintout *p1 = CreatePrintout();
    p1 -> SetHtmlText(htmltext, basepath, TRUE);
    wxHtmlPrintout *p2 = CreatePrintout();
    p2 -> SetHtmlText(htmltext, basepath, TRUE);
    DoPreview(p1, p2);
}


void wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
{
    wxHtmlPrintout *p = CreatePrintout();
    p -> SetHtmlFile(htmlfile);
    DoPrint(p);
}


void wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
{
    wxHtmlPrintout *p = CreatePrintout();
    p -> SetHtmlText(htmltext, basepath, TRUE);
    DoPrint(p);
}


void wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
{
    // Pass two printout objects: for preview, and possible printing.
    wxPrintDialogData printDialogData(*m_PrintData);
    wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
    if (!preview -> Ok()) {
        delete preview;
        wxMessageBox(_("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _("Previewing"), wxOK);
    }
    
    else {
        wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame, 
                                                   m_Name + _(" Preview"), 
                                                   wxPoint(100, 100), wxSize(500, 500));
        frame -> Centre(wxBOTH);
        frame -> Initialize();
        frame -> Show(TRUE);
    }
}


void wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
{
    wxPrintDialogData printDialogData(*m_PrintData);
    wxPrinter printer(&printDialogData);

    if (!printer.Print(m_Frame, printout, TRUE))
        wxMessageBox(_("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _("Printing"), wxOK);
    else
        (*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
}


void wxHtmlEasyPrinting::PrinterSetup()
{
    wxPrintDialogData printDialogData(*m_PrintData);
    wxPrintDialog printerDialog(m_Frame, &printDialogData);
    
    printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);

    if (printerDialog.ShowModal() == wxID_OK)
        (*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
}


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
Commit	Line	Data
3ce369e6 VS	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: htmprint.cpp
	3	// Purpose: html printing classes
	4	// Author: Vaclav Slavik
	5	// Created: 25/09/99
	6	// RCS-ID: $Id$
	7	// Copyright: (c) Vaclav Slavik, 1999
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11
	12	#ifdef __GNUG__
	13	#pragma implementation
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx/wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WX_PRECOMP
	24	#include "wx/wx.h"
	25	#endif
	26
	27	#if wxUSE_PRINTING_ARCHITECTURE
	28
	29	#include "wx/print.h"
	30	#include "wx/printdlg.h"
	31	#include "wx/html/htmprint.h"
	32	#include "wx/wxhtml.h"
	33	#include "wx/wfstream.h"
	34
	35
	36	//--------------------------------------------------------------------------------
	37	// wxHtmlDCRenderer
	38	//--------------------------------------------------------------------------------
	39
	40
	41	wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
	42	{
	43	m_DC = NULL;
	44	m_Width = m_Height = 0;
	45	m_Cells = NULL;
	46	m_Parser = new wxHtmlWinParser(NULL);
	47	m_FS = new wxFileSystem();
	48	m_Parser -> SetFS(m_FS);
	49	m_Scale = 1.0;
	50	}
	51
	52
	53
	54	wxHtmlDCRenderer::~wxHtmlDCRenderer()
	55	{
	56	if (m_Cells) delete m_Cells;
	57	if (m_Parser) delete m_Parser;
	58	if (m_FS) delete m_FS;
	59	}
	60
	61
	62
	63	void wxHtmlDCRenderer::SetDC(wxDC *dc, int maxwidth)
	64	{
65	int dx, dy;
66
67	wxDisplaySize(&dx, &dy);
68	m_MaxWidth = maxwidth;
69	#if 0
70	m_Scale = (float)dx * 2 / 3 / (float)maxwidth;
71	// let the width of A4 is approximately 2/3 the screen width
72	#endif
73	m_Scale = (float)800 / (float)maxwidth;
74	// for now, assume screen width = 800 => good results
75
76	m_DC = dc;
77	m_Parser -> SetDC(dc);
78	}
79
80
81
82	void wxHtmlDCRenderer::SetSize(int width, int height)
83	{
84	m_Width = (int)(width * m_Scale);
85	m_Height = (int)(height * m_Scale);
86	}
87
88
89
90	void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
91	{
92	if (m_DC == NULL) return;
93
94	if (m_Cells != NULL) delete m_Cells;
95
96	m_FS -> ChangePathTo(basepath, isdir);
97	m_DC -> SetUserScale(1.0, 1.0);
98	m_Cells = (wxHtmlContainerCell*) m_Parser -> Parse(html);
99	m_Cells -> SetIndent(0, HTML_INDENT_ALL, HTML_UNITS_PIXELS);
100	m_Cells -> Layout(m_Width);
101	}
102
103
104
105	int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render)
106	{
107	int pbreak;
108
109	if (m_Cells == NULL \|\| m_DC == NULL) return 0;
110
111	pbreak = (int)(from * m_Scale + m_Height);
112	while (m_Cells -> AdjustPagebreak(&pbreak)) {}
113
114	if (!dont_render) {
115	int w, h;
116	m_DC -> GetSize(&w, &h);
117	float overallScale = (float)(w/(float)m_MaxWidth) / m_Scale;
118	m_DC -> SetUserScale(overallScale, overallScale);
119
120	m_DC -> SetBrush(*wxWHITE_BRUSH);
121
122	m_DC -> SetClippingRegion(x * m_Scale, y * m_Scale, m_Width, m_Height);
123	m_Cells -> Draw(*m_DC,
124	x * m_Scale, (y - from) * m_Scale,
125	y * m_Scale, pbreak + (y - from) * m_Scale);
126	m_DC -> DestroyClippingRegion();
127	}
128
129	if (pbreak < m_Cells -> GetHeight()) return (int)(pbreak / m_Scale);
130	else return GetTotalHeight();
131	}
132
133
134
135	int wxHtmlDCRenderer::GetTotalHeight()
136	{
137	if (m_Cells) return (int)(m_Cells -> GetHeight() / m_Scale);
138	else return 0;
139	}
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156	//--------------------------------------------------------------------------------
157	// wxHtmlPrintout
158	//--------------------------------------------------------------------------------
159
160
161
162	wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
163	{
164	m_Renderer = new wxHtmlDCRenderer;
165	m_RendererHdr = new wxHtmlDCRenderer;
166	m_NumPages = HTML_PRINT_MAX_PAGES;
167	m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = TRUE;
168	m_Headers[0] = m_Headers[1] = wxEmptyString;
169	m_Footers[0] = m_Footers[1] = wxEmptyString;
170	m_HeaderHeight = m_FooterHeight = 0;
171	SetMargins(); // to default values
172	}
173
174
175
176	wxHtmlPrintout::~wxHtmlPrintout()
177	{
178	delete m_Renderer;
179	delete m_RendererHdr;
180	}
181
182
183
184	bool wxHtmlPrintout::OnBeginDocument(int start, int end)
185	{
186	int pageWidth, pageHeight, mm_w, mm_h;
187	float ppmm_h, ppmm_v;
188
189	if (!wxPrintout::OnBeginDocument(start, end)) return FALSE;
190
191	GetPageSizePixels(&pageWidth, &pageHeight);
192	GetPageSizeMM(&mm_w, &mm_h);
193	ppmm_h = (float)pageWidth / mm_w;
194	ppmm_v = (float)pageHeight / mm_h;
195
196	/* prepare headers/footers renderer: */
197
198	m_RendererHdr -> SetDC(GetDC(), pageWidth);
199	m_RendererHdr -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
200	ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
201	if (m_Headers[0] != wxEmptyString) {
202	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[0], 1));
203	m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
204	}
205	else if (m_Headers[1] != wxEmptyString) {
206	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[1], 1));
207	m_HeaderHeight = m_RendererHdr -> GetTotalHeight();
208	}
209	if (m_Footers[0] != wxEmptyString) {
210	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[0], 1));
211	m_FooterHeight = m_RendererHdr -> GetTotalHeight();
212	}
213	else if (m_Footers[1] != wxEmptyString) {
214	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[1], 1));
215	m_FooterHeight = m_RendererHdr -> GetTotalHeight();
216	}
217
218	/* prepare main renderer: */
219	m_Renderer -> SetDC(GetDC(), pageWidth);
220	m_Renderer -> SetSize(ppmm_h * (mm_w - m_MarginLeft - m_MarginTop),
221	ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) -
222	m_FooterHeight - m_HeaderHeight -
223	((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) -
224	((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v)
225	);
226	m_Renderer -> SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
227	CountPages();
228
229	return TRUE;
230	}
231
232
233	bool wxHtmlPrintout::OnPrintPage(int page)
234	{
235	wxDC *dc = GetDC();
236	if (dc) {
237	if (HasPage(page))
238	RenderPage(dc, page);
239	return TRUE;
240	} else
241	return FALSE;
242	}
243
244
245	void wxHtmlPrintout::GetPageInfo(int minPage, int maxPage, int selPageFrom, int selPageTo)
246	{
247	*minPage = 1;
248	*maxPage = HTML_PRINT_MAX_PAGES;
249	*selPageFrom = 1;
250	*selPageTo = 1;
251	}
252
253
254
255	bool wxHtmlPrintout::HasPage(int pageNum)
256	{
257	return (pageNum >= 1 && pageNum <= m_NumPages);
258	}
259
260
261
262	void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
263	{
264	m_Document = html;
265	m_BasePath = basepath;
266	m_BasePathIsDir = isdir;
267	}
268
269
270
271	void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
272	{
273	wxFileSystem fs;
274	wxFSFile *ff = fs.OpenFile(htmlfile);
275	wxInputStream *st = ff -> GetStream();
276	char *t = new char[st -> GetSize() + 1];
277	st -> Read(t, st -> GetSize());
278	t[st -> GetSize()] = 0;
279
280	wxString doc = wxString(t);
281	delete t;
282	delete ff;
283
284	SetHtmlText(doc, htmlfile, FALSE);
285	}
286
287
288
289	void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
290	{
291	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_EVEN)
292	m_Headers[0] = header;
293	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_ODD)
294	m_Headers[1] = header;
295	}
296
297
298
299	void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
300	{
301	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_EVEN)
302	m_Footers[0] = footer;
303	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_ODD)
304	m_Footers[1] = footer;
305	}
306
307
308
309	void wxHtmlPrintout::CountPages()
310	{
311	wxBusyCursor wait;
312	int pageWidth, pageHeight, mm_w, mm_h;
313	float ppmm_h, ppmm_v;
314
315	GetPageSizePixels(&pageWidth, &pageHeight);
316	GetPageSizeMM(&mm_w, &mm_h);
317	ppmm_h = (float)pageWidth / mm_w;
318	ppmm_v = (float)pageHeight / mm_h;
319
320	int pos = 0;
321
322	m_NumPages = 0;
323
324	m_PageBreaks[0] = 0;
325	do {
326	pos = m_Renderer -> Render(ppmm_h * m_MarginLeft,
327	ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
328	pos, TRUE);
329	m_PageBreaks[++m_NumPages] = pos;
330	} while (pos < m_Renderer -> GetTotalHeight());
331	}
332
333
334
335	void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
336	{
337	wxBusyCursor wait;
338
339	int pageWidth, pageHeight, mm_w, mm_h;
340	float ppmm_h, ppmm_v;
341
342	GetPageSizePixels(&pageWidth, &pageHeight);
343	GetPageSizeMM(&mm_w, &mm_h);
344	ppmm_h = (float)pageWidth / mm_w;
345	ppmm_v = (float)pageHeight / mm_h;
346
347	m_Renderer -> SetDC(dc, pageWidth);
348
349	dc -> SetBackgroundMode(wxTRANSPARENT);
350
351	m_Renderer -> Render(ppmm_h * m_MarginLeft,
352	ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight,
353	m_PageBreaks[page-1]);
354
355	m_RendererHdr -> SetDC(dc, pageWidth);
356	if (m_Headers[page % 2] != wxEmptyString) {
357	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
358	m_RendererHdr -> Render(ppmm_h * m_MarginLeft, ppmm_v * m_MarginTop);
359	}
360	if (m_Footers[page % 2] != wxEmptyString) {
361	m_RendererHdr -> SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
362	m_RendererHdr -> Render(ppmm_h * m_MarginLeft, pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight);
363	}
364	}
365
366
367
368	wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
369	{
370	wxString r = instr;
371	wxString num;
372
373	num.Printf("%i", page);
374	r.Replace("@PAGENUM@", num);
375
376	num.Printf("%i", m_NumPages);
377	r.Replace("@PAGESCNT@", num);
378
379	return r;
380	}
381
382
383
384	void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
385	{
386	m_MarginTop = top;
387	m_MarginBottom = bottom;
388	m_MarginLeft = left;
389	m_MarginRight = right;
390	m_MarginSpace = spaces;
391	}
392
393
394
395
396
397
398	//--------------------------------------------------------------------------------
399	// wxHtmlEasyPrinting
400	//--------------------------------------------------------------------------------
401
402
403	wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxFrame *parent_frame)
404	{
405	m_Frame = parent_frame;
406	m_Name = name;
407	m_PrintData = new wxPrintData;
408	m_PageSetupData = new wxPageSetupDialogData;
409	m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
410
411	m_PageSetupData -> EnableMargins(TRUE);
412	m_PageSetupData -> SetMarginTopLeft(wxPoint(25, 25));
413	m_PageSetupData -> SetMarginBottomRight(wxPoint(25, 25));
414
415	#if defined(__WXGTK__) \|\| defined(__WXMOTIF__)
416	m_PrintData -> SetPrinterCommand("lpr");
417	#endif
418	}
419
420
421
422	wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
423	{
424	delete m_PrintData;
425	delete m_PageSetupData;
426	}
427
428
429
430	void wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
431	{
432	wxHtmlPrintout *p1 = CreatePrintout();
433	p1 -> SetHtmlFile(htmlfile);
434	wxHtmlPrintout *p2 = CreatePrintout();
435	p2 -> SetHtmlFile(htmlfile);
436	DoPreview(p1, p2);
437	}
438
439
440
441	void wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
442	{
443	wxHtmlPrintout *p1 = CreatePrintout();
444	p1 -> SetHtmlText(htmltext, basepath, TRUE);
445	wxHtmlPrintout *p2 = CreatePrintout();
446	p2 -> SetHtmlText(htmltext, basepath, TRUE);
447	DoPreview(p1, p2);
448	}
449
450
451
452	void wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
453	{
454	wxHtmlPrintout *p = CreatePrintout();
455	p -> SetHtmlFile(htmlfile);
456	DoPrint(p);
457	}
458
459
460
461	void wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
462	{
463	wxHtmlPrintout *p = CreatePrintout();
464	p -> SetHtmlText(htmltext, basepath, TRUE);
465	DoPrint(p);
466	}
467
468
469
470	void wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout printout1, wxHtmlPrintout printout2)
471	{
472	// Pass two printout objects: for preview, and possible printing.
473	wxPrintDialogData printDialogData(*m_PrintData);
474	wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
475	if (!preview -> Ok()) {
476	delete preview;
477	wxMessageBox(_("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _("Previewing"), wxOK);
478	}
479
480	else {
481	wxPreviewFrame *frame = new wxPreviewFrame(preview, m_Frame,
482	m_Name + _(" Preview"),
483	wxPoint(100, 100), wxSize(500, 500));
484	frame -> Centre(wxBOTH);
485	frame -> Initialize();
486	frame -> Show(TRUE);
487	}
488	}
489
490
491
492	void wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
493	{
494	wxPrintDialogData printDialogData(*m_PrintData);
495	wxPrinter printer(&printDialogData);
496
497	if (!printer.Print(m_Frame, printout, TRUE))
498	wxMessageBox(_("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _("Printing"), wxOK);
499	else
500	(*m_PrintData) = printer.GetPrintDialogData().GetPrintData();
501	}
502
503
504
505	void wxHtmlEasyPrinting::PrinterSetup()
506	{
507	wxPrintDialogData printDialogData(*m_PrintData);
508	wxPrintDialog printerDialog(m_Frame, &printDialogData);
509
510	printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
511
512	if (printerDialog.ShowModal() == wxID_OK)
513	(*m_PrintData) = printerDialog.GetPrintDialogData().GetPrintData();
514	}
515
516
517
518	void wxHtmlEasyPrinting::PageSetup()
519	{
520	m_PageSetupData -> SetPrintData(*m_PrintData);
521	wxPageSetupDialog pageSetupDialog(m_Frame, m_PageSetupData);
522
523	if (pageSetupDialog.ShowModal() == wxID_OK) {
524	(*m_PrintData) = pageSetupDialog.GetPageSetupData().GetPrintData();
525	(*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
526	}
527	}
528
529
530
531	void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
532	{
533	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_EVEN)
534	m_Headers[0] = header;
535	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_ODD)
536	m_Headers[1] = header;
537	}
538
539
540
541	void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
542	{
543	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_EVEN)
544	m_Footers[0] = footer;
545	if (pg == wxPAGE_ALL \|\| pg == wxPAGE_ODD)
546	m_Footers[1] = footer;
547	}
548
549
550
551	wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
552	{
553	wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
554
555	p -> SetHeader(m_Headers[0], wxPAGE_EVEN);
556	p -> SetHeader(m_Headers[1], wxPAGE_ODD);
557	p -> SetFooter(m_Footers[0], wxPAGE_EVEN);
558	p -> SetFooter(m_Footers[1], wxPAGE_ODD);
559
560	p -> SetMargins(m_PageSetupData -> GetMarginTopLeft().y,
561	m_PageSetupData -> GetMarginBottomRight().y,
562	m_PageSetupData -> GetMarginTopLeft().x,
563	m_PageSetupData -> GetMarginBottomRight().x);
564
565	return p;
566	}
567
568
569
570	#endif // wxUSE_PRINTING_ARCHITECTURE