- Add support for wxSP_WRAP in the generic version of wxSpinCtrlDouble.
- Add alignment flags support to wxSpinCtrl[Double] (Andrew Radke).
- Added wxGetSelectedChoices() replacing wxGetMultipleChoices() (Kolya Kosenko).
+- Check whether document fits into page horizontally in wxHtmlPrintout, see the
+ new CheckFit() method for more information.
wxGTK:
int Render(int x, int y, wxArrayInt& known_pagebreaks, int from = 0,
int dont_render = false, int to = INT_MAX);
+ // returns total width of the html document
+ int GetTotalWidth() const;
+
// returns total height of the html document
// (compare Render's return value with this)
- int GetTotalHeight();
+ int GetTotalHeight() const;
private:
wxDC *m_DC;
static void CleanUpStatics();
private:
+ // this function is called by the base class OnPreparePrinting()
+ // implementation and by default checks whether the document fits into
+ // pageArea horizontally and warns the user if it does not, giving him
+ // the possibility to cancel printing in this case
+ //
+ // you may override it to either suppress this check if truncation of the
+ // HTML being printed is acceptable or, on the contrary, add more checks to
+ // it, e.g. for the fit in the vertical direction if the document should
+ // always appear on a single page
+ //
+ // return true if printing should go ahead or false to cancel it
+ virtual bool CheckFit(const wxSize& pageArea, const wxSize& docArea) const;
void RenderPage(wxDC *dc, int page);
// renders one page into dc
wxHtmlDCRenderer();
/**
- Returns the height of the HTML text. This is important if area height
- (see wxHtmlDCRenderer::SetSize) is smaller that total height and thus
- the page cannot fit into it. In that case you're supposed to call
- Render() as long as its return value is smaller than GetTotalHeight()'s.
+ Returns the width of the HTML text in pixels.
+
+ This can be compared with the width parameter of SetSize() to check if
+ the document being printed fits into the page boundary.
+
+ @see GetTotalHeight()
+
+ @since 2.9.0
+ */
+ int GetTotalWidth() const;
+
+ /**
+ Returns the height of the HTML text in pixels.
+
+ This is important if area height (see wxHtmlDCRenderer::SetSize) is
+ smaller that total height and thus the page cannot fit into it. In that
+ case you're supposed to call Render() as long as its return value is
+ smaller than GetTotalHeight()'s.
+
+ @see GetTotalWidth()
*/
- int GetTotalHeight();
+ int GetTotalHeight() const;
/**
Renders HTML text to the DC.
Sets the parent window for dialogs.
*/
void SetParentWindow(wxWindow* window);
+
+private:
+ /**
+ Check whether the document fits into the page area.
+
+ This function is called by the base class OnPreparePrinting()
+ implementation and by default checks whether the document fits into
+ @a pageArea horizontally and warns the user if it does not, giving him
+ the possibility to cancel printing in this case (presumably in order to
+ change some layout options and retry it again).
+
+ You may override it to either suppress this check if truncation of the
+ HTML being printed is acceptable or, on the contrary, add more checks to
+ it, e.g. for the fit in the vertical direction if the document should
+ always appear on a single page.
+
+ @return
+ @true if wxHtmlPrintout should continue or @false to cancel
+ printing.
+
+ @since 2.9.0
+ */
+ virtual bool CheckFit(const wxSize& pageArea, const wxSize& docArea) const;
};
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;
}
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;
/* 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)
projects / wxWidgets.git / commitdiff
