fbfb8bcc3f
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35665 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
112 lines
4.0 KiB
TeX
112 lines
4.0 KiB
TeX
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% automatically generated by HelpGen from
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% htmprint.h at 17/Oct/99 12:48:02
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%
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\section{\class{wxHtmlDCRenderer}}\label{wxhtmldcrenderer}
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This class can render HTML document into a specified area of a DC. You can use it
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in your own printing code, although use of \helpref{wxHtmlEasyPrinting}{wxhtmleasyprinting}
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or \helpref{wxHtmlPrintout}{wxhtmlprintout} is strongly recommended.
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\wxheading{Derived from}
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/html/htmprint.h>
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxHtmlDCRenderer::wxHtmlDCRenderer}\label{wxhtmldcrendererwxhtmldcrenderer}
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\func{}{wxHtmlDCRenderer}{\void}
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Constructor.
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\membersection{wxHtmlDCRenderer::SetDC}\label{wxhtmldcrenderersetdc}
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\func{void}{SetDC}{\param{wxDC* }{dc}, \param{double }{pixel\_scale = 1.0}}
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Assign DC instance to the renderer.
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{\it pixel\_scale} can be used when rendering to high-resolution DCs (e.g. printer) to adjust size of pixel metrics.
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(Many dimensions in HTML are given in pixels -- e.g. image sizes. 300x300 image would be only one
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inch wide on typical printer. With pixel\_scale = 3.0 it would be 3 inches.)
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\membersection{wxHtmlDCRenderer::SetFonts}\label{wxhtmldcrenderersetfonts}
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\func{void}{SetFonts}{\param{const wxString\& }{normal\_face}, \param{const wxString\& }{fixed\_face}, \param{const int }{*sizes = NULL}}
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Sets fonts. See \helpref{wxHtmlWindow::SetFonts}{wxhtmlwindowsetfonts} for
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detailed description.
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See also \helpref{SetSize}{wxhtmldcrenderersetsize}.
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\membersection{wxHtmlDCRenderer::SetSize}\label{wxhtmldcrenderersetsize}
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\func{void}{SetSize}{\param{int }{width}, \param{int }{height}}
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Set size of output rectangle, in pixels. Note that you {\bf can't} change
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width of the rectangle between calls to \helpref{Render}{wxhtmldcrendererrender}!
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(You can freely change height.)
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\membersection{wxHtmlDCRenderer::SetHtmlText}\label{wxhtmldcrenderersethtmltext}
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\func{void}{SetHtmlText}{\param{const wxString\& }{html}, \param{const wxString\& }{basepath = wxEmptyString}, \param{bool }{isdir = true}}
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Assign text to the renderer. \helpref{Render}{wxhtmldcrendererrender} then draws
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the text onto DC.
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\wxheading{Parameters}
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\docparam{html}{HTML text. This is {\it not} a filename.}
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\docparam{basepath}{base directory (html string would be stored there if it was in
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file). It is used to determine path for loading images, for example.}
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\docparam{isdir}{false if basepath is filename, true if it is directory name
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(see \helpref{wxFileSystem}{wxfilesystem} for detailed explanation)}
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\membersection{wxHtmlDCRenderer::Render}\label{wxhtmldcrendererrender}
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\func{int}{Render}{\param{int }{x}, \param{int }{y}, \param{int }{from = 0}, \param{int }{dont\_render = false}}
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Renders HTML text to the DC.
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\wxheading{Parameters}
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\docparam{x,y}{ position of upper-left corner of printing rectangle (see \helpref{SetSize}{wxhtmldcrenderersetsize})}
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\docparam{from}{y-coordinate of the very first visible cell}
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\docparam{dont\_render}{if true then this method only returns y coordinate of the next page
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and does not output anything}
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Returned value is y coordinate of first cell than didn't fit onto page.
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Use this value as {\it from} in next call to Render in order to print multipages
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document.
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\wxheading{Caution!}
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The Following three methods {\bf must} always be called before any call to Render (preferably
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in this order):
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\begin{itemize}\itemsep=0pt
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\item \helpref{SetDC}{wxhtmldcrenderersetdc}
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\item \helpref{SetSize}{wxhtmldcrenderersetsize}
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\item \helpref{SetHtmlText}{wxhtmldcrenderersethtmltext}
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\end{itemize}
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{\bf Render() changes the DC's user scale and does NOT restore it.}
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\membersection{wxHtmlDCRenderer::GetTotalHeight}\label{wxhtmldcrenderergettotalheight}
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\func{int}{GetTotalHeight}{\void}
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Returns the height of the HTML text. This is important if area height (see \helpref{SetSize}{wxhtmldcrenderersetsize})
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is smaller that total height and thus the page cannot fit into it. In that case you're supposed to
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call \helpref{Render}{wxhtmldcrendererrender} as long as its return value is smaller than GetTotalHeight's.
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