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detect horizontal overflow in wxHtmlPrintout and warn the user about it

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59862 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2009-03-26 13:37:37 +00:00
parent be8dbffa00
commit 4209475ced
4 changed files with 123 additions and 17 deletions
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72
src/html/htmprint.cpp
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@@ -150,11 +150,14 @@ int wxHtmlDCRenderer::Render(int x, int y,
else return GetTotalHeight();
}
int wxHtmlDCRenderer::GetTotalHeight()
int wxHtmlDCRenderer::GetTotalWidth() const
{
if (m_Cells) return m_Cells->GetHeight();
else return 0;
return m_Cells ? m_Cells->GetWidth() : 0;
}
int wxHtmlDCRenderer::GetTotalHeight() const
{
return m_Cells ? m_Cells->GetHeight() : 0;
}
@@ -197,6 +200,40 @@ void wxHtmlPrintout::AddFilter(wxHtmlFilter *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"),
wxYES_NO | wxNO_DEFAULT | wxICON_QUESTION
);
dlg.SetExtendedMessage
(
_("If possible, try changing the layout parameters to "
"make the printout more narrow")
);
dlg.SetYesNoLabels(_("&Print"), _("&Cancel"));
if ( dlg.ShowModal() != wxYES )
return false;
}
return true;
}
void wxHtmlPrintout::OnPreparePrinting()
{
int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
@@ -248,14 +285,27 @@ void wxHtmlPrintout::OnPreparePrinting()
/* 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 -= m_HeaderHeight + m_MarginSpace * ppmm_v;
if ( m_FooterHeight )
printAreaH -= m_FooterHeight + m_MarginSpace * ppmm_v;
m_Renderer->SetSize(printAreaW, printAreaH);
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)