No real changes, just change type of MSWGetBgBrush() argument.

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

diff --git a/src/html/htmprint.cpp b/src/html/htmprint.cpp
index b6a1bc636dc3123e08a8ce6ea9976c7736961e18..6a22f88547216fb3bff807a225a50a233c5126e9 100644 (file)
--- a/src/html/htmprint.cpp
+++ b/src/html/htmprint.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        htmprint.cpp
+// Name:        src/html/htmprint.cpp

 // Purpose:     html printing classes
 // Author:      Vaclav Slavik
 // Created:     25/09/99
 // Purpose:     html printing classes
 // Author:      Vaclav Slavik
 // Created:     25/09/99


@@ -11,28 +11,30 @@
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 

-#include "wx/defs.h"
-

 #ifdef __BORLANDC__
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS
+

 #ifndef WX_PRECOMP
     #include "wx/log.h"
     #include "wx/intl.h"
     #include "wx/dc.h"
 #ifndef WX_PRECOMP
     #include "wx/log.h"
     #include "wx/intl.h"
     #include "wx/dc.h"

+    #include "wx/settings.h"
+    #include "wx/msgdlg.h"
+    #include "wx/module.h"

 #endif
 
 #endif
 

-#if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS
-
-#include "wx/dc.h"

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

-#include "wx/module.h"
-#include "wx/settings.h"
+
+
+// default font size of normal text (HTML font size 0) for printing, in points:
+#define DEFAULT_PRINT_FONT_SIZE   12

 
 
 //--------------------------------------------------------------------------------
 
 
 //--------------------------------------------------------------------------------


@@ -45,9 +47,10 @@ wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
     m_DC = NULL;
     m_Width = m_Height = 0;
     m_Cells = NULL;
     m_DC = NULL;
     m_Width = m_Height = 0;
     m_Cells = NULL;

-    m_Parser = new wxHtmlWinParser(NULL);
+    m_Parser = new wxHtmlWinParser();

     m_FS = new wxFileSystem();
     m_Parser->SetFS(m_FS);
     m_FS = new wxFileSystem();
     m_Parser->SetFS(m_FS);

+    SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);

 }
 
 
 }
 
 


@@ -71,6 +74,9 @@ void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale)
 
 void wxHtmlDCRenderer::SetSize(int width, int height)
 {
 
 void wxHtmlDCRenderer::SetSize(int width, int height)
 {

+    wxCHECK_RET( width, "width must be non-zero" );
+    wxCHECK_RET( height, "height must be non-zero" );
+

     m_Width = width;
     m_Height = height;
 }
     m_Width = width;
     m_Height = height;
 }


@@ -78,9 +84,10 @@ void wxHtmlDCRenderer::SetSize(int width, int height)
 
 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
 {
 
 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
 {

-    if (m_DC == NULL) return;
+    wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" );
+    wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" );

 
 

-    if (m_Cells != NULL) delete m_Cells;
+    wxDELETE(m_Cells);

 
     m_FS->ChangePathTo(basepath, isdir);
     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
 
     m_FS->ChangePathTo(basepath, isdir);
     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);


@@ -93,8 +100,10 @@ void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fix
                                 const int *sizes)
 {
     m_Parser->SetFonts(normal_face, fixed_face, sizes);
                                 const int *sizes)
 {
     m_Parser->SetFonts(normal_face, fixed_face, sizes);

-    if (m_DC == NULL && m_Cells != NULL)
+
+    if ( m_Cells )

         m_Cells->Layout(m_Width);
         m_Cells->Layout(m_Width);

+    // else: SetHtmlText() not yet called, no need for relayout

 }
 
 void wxHtmlDCRenderer::SetStandardFonts(int size,
 }
 
 void wxHtmlDCRenderer::SetStandardFonts(int size,


@@ -102,24 +111,26 @@ void wxHtmlDCRenderer::SetStandardFonts(int size,
                                         const wxString& fixed_face)
 {
     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
                                         const wxString& fixed_face)
 {
     m_Parser->SetStandardFonts(size, normal_face, fixed_face);

-    if (m_DC == NULL && m_Cells != NULL)
+
+    if ( m_Cells )

         m_Cells->Layout(m_Width);
         m_Cells->Layout(m_Width);

+    // else: SetHtmlText() not yet called, no need for relayout

 }
 
 }
 

-
-int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render,
-                             int maxHeight,
-                             int *known_pagebreaks, int number_of_pages)
+int wxHtmlDCRenderer::Render(int x, int y,
+                             wxArrayInt& known_pagebreaks,
+                             int from, int dont_render, int to)

 {
 {

-    int pbreak, hght;
+    wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" );
+    wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" );

 
 

-    if (m_Cells == NULL || m_DC == NULL) return 0;
+    int pbreak, hght;

 
     pbreak = (int)(from + m_Height);
 
     pbreak = (int)(from + m_Height);

-    while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks, number_of_pages)) {}
+    while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks)) {}

     hght = pbreak - from;
     hght = pbreak - from;

-    if (maxHeight < hght)
-        hght = maxHeight;
+    if(to < hght)
+        hght = to;

 
     if (!dont_render)
     {
 
     if (!dont_render)
     {


@@ -130,7 +141,7 @@ int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render,
         m_DC->SetClippingRegion(x, y, m_Width, hght);
         m_Cells->Draw(*m_DC,
                       x, (y - from),
         m_DC->SetClippingRegion(x, y, m_Width, hght);
         m_Cells->Draw(*m_DC,
                       x, (y - from),

-                      y, pbreak + (y /*- from*/),
+                      y, y + hght,

                       rinfo);
         m_DC->DestroyClippingRegion();
     }
                       rinfo);
         m_DC->DestroyClippingRegion();
     }


@@ -139,12 +150,14 @@ int wxHtmlDCRenderer::Render(int x, int y, int from, int dont_render,
     else return GetTotalHeight();
 }
 
     else return GetTotalHeight();
 }
 

+int wxHtmlDCRenderer::GetTotalWidth() const
+{
+    return m_Cells ? m_Cells->GetWidth() : 0;
+}

 
 

-
-int wxHtmlDCRenderer::GetTotalHeight()
+int wxHtmlDCRenderer::GetTotalHeight() const

 {
 {

-    if (m_Cells) return m_Cells->GetHeight();
-    else return 0;
+    return m_Cells ? m_Cells->GetHeight() : 0;

 }
 
 
 }
 
 


@@ -165,6 +178,7 @@ wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
     m_Footers[0] = m_Footers[1] = wxEmptyString;
     m_HeaderHeight = m_FooterHeight = 0;
     SetMargins(); // to default values
     m_Footers[0] = m_Footers[1] = wxEmptyString;
     m_HeaderHeight = m_FooterHeight = 0;
     SetMargins(); // to default values

+    SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);

 }
 
 
 }
 
 


@@ -186,6 +200,40 @@ void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter)
     m_Filters.Append(filter);
 }
 
     m_Filters.Append(filter);
 }
 

+bool
+wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const
+{
+    if ( docArea.x > pageArea.x )
+    {
+        wxMessageDialog
+            dlg
+            (
+                NULL,
+                wxString::Format
+                (
+                 _("The document \"%s\" doesn't fit on the page "
+                   "horizontally and will be truncated if printed.\n"
+                   "\n"
+                   "Would you like to proceed with printing it nevertheless?"),
+                 GetTitle()
+                ),
+                _("Printing"),
+                wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
+            );
+        dlg.SetExtendedMessage
+            (
+                _("If possible, try changing the layout parameters to "
+                  "make the printout more narrow.")
+            );
+        dlg.SetOKLabel(wxID_PRINT);
+
+        if ( dlg.ShowModal() == wxID_CANCEL )
+            return false;
+    }
+
+    return true;
+}
+

 void wxHtmlPrintout::OnPreparePrinting()
 {
     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 void wxHtmlPrintout::OnPreparePrinting()
 {
     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;


@@ -198,13 +246,16 @@ void wxHtmlPrintout::OnPreparePrinting()
 
     int ppiPrinterX, ppiPrinterY;
     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 
     int ppiPrinterX, ppiPrinterY;
     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);

+    wxUnusedVar(ppiPrinterX);

     int ppiScreenX, ppiScreenY;
     GetPPIScreen(&ppiScreenX, &ppiScreenY);
     int ppiScreenX, ppiScreenY;
     GetPPIScreen(&ppiScreenX, &ppiScreenY);

+    wxUnusedVar(ppiScreenX);

 
     wxDisplaySize(&scr_w, &scr_h);
     GetDC()->GetSize(&dc_w, &dc_h);
 
 
     wxDisplaySize(&scr_w, &scr_h);
     GetDC()->GetSize(&dc_w, &dc_h);
 

-    GetDC()->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
+    GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
+                          (double)dc_h / (double)pageHeight);

 
     /* prepare headers/footers renderer: */
 
 
     /* prepare headers/footers renderer: */
 


@@ -234,14 +285,27 @@ void wxHtmlPrintout::OnPreparePrinting()
 
     /* prepare main renderer: */
     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 
     /* prepare main renderer: */
     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);

-    m_Renderer->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
-                          (int) (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)
-                          ));
+
+    const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
+    int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
+    if ( m_HeaderHeight )
+        printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
+    if ( m_FooterHeight )
+        printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
+
+    m_Renderer->SetSize(printAreaW, printAreaH);

     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);

-    CountPages();
+
+    if ( CheckFit(wxSize(printAreaW, printAreaH),
+                  wxSize(m_Renderer->GetTotalWidth(),
+                         m_Renderer->GetTotalHeight())) )
+    {
+        // do paginate the document
+        CountPages();
+    }
+    //else: if we don't call CountPages() m_PageBreaks remains empty and our
+    //      GetPageInfo() will return 0 as max page and so nothing will be
+    //      printed

 }
 
 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 }
 
 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)


@@ -255,7 +319,7 @@ bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 bool wxHtmlPrintout::OnPrintPage(int page)
 {
     wxDC *dc = GetDC();
 bool wxHtmlPrintout::OnPrintPage(int page)
 {
     wxDC *dc = GetDC();

-    if (dc)
+    if (dc && dc->IsOk())

     {
         if (HasPage(page))
             RenderPage(dc, page);
     {
         if (HasPage(page))
             RenderPage(dc, page);


@@ -268,16 +332,19 @@ bool wxHtmlPrintout::OnPrintPage(int page)
 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 {
     *minPage = 1;
 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 {
     *minPage = 1;

-    *maxPage = m_NumPages;
+    if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
+        *maxPage = m_NumPages;
+    else
+        *maxPage = (signed)m_PageBreaks.GetCount()-1;

     *selPageFrom = 1;
     *selPageFrom = 1;

-    *selPageTo = m_NumPages;
+    *selPageTo = (signed)m_PageBreaks.GetCount()-1;

 }
 
 
 
 bool wxHtmlPrintout::HasPage(int pageNum)
 {
 }
 
 
 
 bool wxHtmlPrintout::HasPage(int pageNum)
 {

-    return (pageNum >= 1 && pageNum <= m_NumPages);
+    return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();

 }
 
 
 }
 
 


@@ -363,16 +430,24 @@ void wxHtmlPrintout::CountPages()
     ppmm_v = (float)pageHeight / mm_h;
 
     int pos = 0;
     ppmm_v = (float)pageHeight / mm_h;
 
     int pos = 0;

-

     m_NumPages = 0;
     m_NumPages = 0;

+    // m_PageBreaks[0] = 0;

 
 

-    m_PageBreaks[0] = 0;
+    m_PageBreaks.Clear();
+    m_PageBreaks.Add( 0);

     do
     {
         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
     do
     {
         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),

-                                   (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
-                                   pos, true, INT_MAX, m_PageBreaks, m_NumPages);
-        m_PageBreaks[++m_NumPages] = pos;
+                                 (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
+                                 m_PageBreaks,
+                                 pos, true, INT_MAX);
+        m_PageBreaks.Add( pos);
+        if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES)
+        {
+            wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"),
+            _("Warning"), wxCANCEL | wxICON_ERROR );
+            break;
+        }

     } while (pos < m_Renderer->GetTotalHeight());
 }
 
     } while (pos < m_Renderer->GetTotalHeight());
 }
 


@@ -399,26 +474,28 @@ void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
     GetPPIScreen(&ppiScreenX, &ppiScreenY);
     wxUnusedVar(ppiScreenX);
 
     GetPPIScreen(&ppiScreenX, &ppiScreenY);
     wxUnusedVar(ppiScreenX);
 

-    dc->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth);
+    dc->SetUserScale((double)dc_w / (double)pageWidth,
+                     (double)dc_h / (double)pageHeight);

 
     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 
 
     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 

-    dc->SetBackgroundMode(wxTRANSPARENT);
+    dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);

 
     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 
     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),

-                         (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
+                         (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,

                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 
                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 

+

     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
     if (m_Headers[page % 2] != wxEmptyString)
     {
         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
     if (m_Headers[page % 2] != wxEmptyString)
     {
         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));

-        m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop));
+        m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);

     }
     if (m_Footers[page % 2] != wxEmptyString)
     {
         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
     }
     if (m_Footers[page % 2] != wxEmptyString)
     {
         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));

-        m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight));
+        m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);

     }
 }
 
     }
 }
 


@@ -432,9 +509,15 @@ wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
     num.Printf(wxT("%i"), page);
     r.Replace(wxT("@PAGENUM@"), num);
 
     num.Printf(wxT("%i"), page);
     r.Replace(wxT("@PAGENUM@"), num);
 

-    num.Printf(wxT("%i"), m_NumPages);
+    num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));

     r.Replace(wxT("@PAGESCNT@"), num);
 
     r.Replace(wxT("@PAGESCNT@"), num);
 

+    const wxDateTime now = wxDateTime::Now();
+    r.Replace(wxT("@DATE@"), now.FormatDate());
+    r.Replace(wxT("@TIME@"), now.FormatTime());
+
+    r.Replace(wxT("@TITLE@"), GetTitle());
+

     return r;
 }
 
     return r;
 }
 


@@ -486,7 +569,7 @@ wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWin
     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 
     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 

-    SetFonts(wxEmptyString, wxEmptyString, NULL);
+    SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);

 }
 
 
 }