449 lines
15 KiB
Objective-C
449 lines
15 KiB
Objective-C
/////////////////////////////////////////////////////////////////////////////
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// Name: html/htmprint.h
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// Purpose: interface of wxHtmlDCRenderer
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxHtmlDCRenderer
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This class can render HTML document into a specified area of a DC.
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You can use it in your own printing code, although use of wxHtmlEasyPrinting
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or wxHtmlPrintout is strongly recommended.
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@library{wxhtml}
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@category{html}
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*/
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class wxHtmlDCRenderer : public wxObject
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{
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public:
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/**
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Constructor.
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*/
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wxHtmlDCRenderer();
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/**
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Returns the width of the HTML text in pixels.
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This can be compared with the width parameter of SetSize() to check if
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the document being printed fits into the page boundary.
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@see GetTotalHeight()
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@since 2.9.0
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*/
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int GetTotalWidth() const;
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/**
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Returns the height of the HTML text in pixels.
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This is important if area height (see wxHtmlDCRenderer::SetSize) is
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smaller that total height and thus the page cannot fit into it. In that
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case you're supposed to call Render() as long as its return value is
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smaller than GetTotalHeight()'s.
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@see GetTotalWidth()
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*/
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int GetTotalHeight() const;
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/**
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Renders HTML text to the DC.
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@param x,y
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position of upper-left corner of printing rectangle (see SetSize()).
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@param known_pagebreaks
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@todo docme
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@param from
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y-coordinate of the very first visible cell.
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@param dont_render
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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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@param to
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y-coordinate of the last visible cell.
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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 from in next call to Render() in order to print
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multipages document.
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@note
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The following three methods @b must always be called before any call to
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Render(), in this order:
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- SetDC()
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- SetSize()
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- SetHtmlText()
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@note Render() changes the DC's user scale and does NOT restore it.
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*/
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int Render(int x, int y, wxArrayInt& known_pagebreaks, int from = 0,
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int dont_render = false, int to = INT_MAX);
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/**
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Assign DC instance to the renderer.
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@a pixel_scale can be used when rendering to high-resolution DCs (e.g. printer)
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to adjust size of pixel metrics.
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(Many dimensions in HTML are given in pixels -- e.g. image sizes. 300x300
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image would be only one inch wide on typical printer. With pixel_scale = 3.0
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it would be 3 inches.)
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*/
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void SetDC(wxDC* dc, double pixel_scale = 1.0);
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/**
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This function sets font sizes and faces.
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@param normal_face
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This is face name for normal (i.e. non-fixed) font.
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It can be either empty string (then the default face is chosen) or
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platform-specific face name. Examples are "helvetica" under Unix or
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"Times New Roman" under Windows.
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@param fixed_face
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The same thing for fixed face ( \<TT\>..\</TT\> )
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@param sizes
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This is an array of 7 items of int type.
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The values represent size of font with HTML size from -2 to +4
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( \<FONT SIZE=-2\> to \<FONT SIZE=+4\> ).
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Default sizes are used if sizes is @NULL.
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Default font sizes are defined by constants wxHTML_FONT_SIZE_1,
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wxHTML_FONT_SIZE_2, ..., wxHTML_FONT_SIZE_7.
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Note that they differ among platforms. Default face names are empty strings.
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@see SetSize()
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*/
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void SetFonts(const wxString& normal_face, const wxString& fixed_face,
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const int* sizes = NULL);
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/**
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Sets font sizes to be relative to the given size or the system
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default size; use either specified or default font
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@param size
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Point size of the default HTML text
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@param normal_face
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This is face name for normal (i.e. non-fixed) font. It can be
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either empty string (then the default face is chosen) or
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platform-specific face name. Examples are "helvetica" under
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Unix or "Times New Roman" under Windows.
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@param fixed_face
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The same thing for fixed face ( \<TT\>..\</TT\> )
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@see SetSize()
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*/
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void SetStandardFonts(int size = -1,
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const wxString& normal_face = wxEmptyString,
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const wxString& fixed_face = wxEmptyString);
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/**
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Assign text to the renderer. Render() then draws the text onto DC.
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@param html
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HTML text. This is not a filename.
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@param basepath
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base directory (html string would be stored there if it was in file).
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It is used to determine path for loading images, for example.
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@param isdir
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@false if basepath is filename, @true if it is directory name
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(see wxFileSystem for detailed explanation).
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*/
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void SetHtmlText(const wxString& html,
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const wxString& basepath = wxEmptyString,
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bool isdir = true);
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/**
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Set size of output rectangle, in pixels. Note that you @b can't change
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width of the rectangle between calls to Render() !
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(You can freely change height.)
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*/
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void SetSize(int width, int height);
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};
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/**
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@class wxHtmlEasyPrinting
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This class provides very simple interface to printing architecture.
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It allows you to print HTML documents using only a few commands.
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@note
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Do not create this class on the stack only. You should create an instance
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on app startup and use this instance for all printing operations.
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The reason is that this class stores various settings in it.
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@library{wxhtml}
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@category{html,printing}
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*/
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class wxHtmlEasyPrinting : public wxObject
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{
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public:
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/**
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Constructor.
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@param name
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Name of the printing object. Used by preview frames and setup dialogs.
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@param parentWindow
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pointer to the window that will own the preview frame and setup dialogs.
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May be @NULL.
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*/
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wxHtmlEasyPrinting(const wxString& name = "Printing",
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wxWindow* parentWindow = NULL);
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/**
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Returns the current name being used for preview frames and setup
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dialogs.
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@since 2.8.11 / 2.9.1
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*/
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const wxString& GetName() const;
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/**
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Returns a pointer to wxPageSetupDialogData instance used by this class.
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You can set its parameters (via SetXXXX methods).
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*/
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wxPageSetupDialogData* GetPageSetupData();
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/**
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Gets the parent window for dialogs.
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*/
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wxWindow* GetParentWindow() const;
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/**
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Returns pointer to wxPrintData instance used by this class.
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You can set its parameters (via SetXXXX methods).
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*/
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wxPrintData* GetPrintData();
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/**
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Display page setup dialog and allows the user to modify settings.
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*/
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void PageSetup();
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/**
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Preview HTML file.
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Returns @false in case of error -- call wxPrinter::GetLastError to get detailed
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information about the kind of the error.
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*/
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bool PreviewFile(const wxString& htmlfile);
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/**
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Preview HTML text (not file!).
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Returns @false in case of error -- call wxPrinter::GetLastError to get detailed
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information about the kind of the error.
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@param htmltext
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HTML text.
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@param basepath
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base directory (html string would be stored there if it was in file).
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It is used to determine path for loading images, for example.
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*/
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bool PreviewText(const wxString& htmltext,
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const wxString& basepath = wxEmptyString);
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/**
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Print HTML file.
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Returns @false in case of error -- call wxPrinter::GetLastError to get detailed
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information about the kind of the error.
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*/
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bool PrintFile(const wxString& htmlfile);
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/**
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Print HTML text (not file!).
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Returns @false in case of error -- call wxPrinter::GetLastError to get detailed
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information about the kind of the error.
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@param htmltext
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HTML text.
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@param basepath
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base directory (html string would be stored there if it was in file).
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It is used to determine path for loading images, for example.
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*/
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bool PrintText(const wxString& htmltext,
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const wxString& basepath = wxEmptyString);
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/**
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Sets fonts. See wxHtmlDCRenderer::SetFonts for detailed description.
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*/
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void SetFonts(const wxString& normal_face, const wxString& fixed_face,
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const int* sizes = NULL);
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/**
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Sets the name used for preview frames and setup dialogs.
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@since 2.8.11 / 2.9.1
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*/
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void SetName(const wxString& name);
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/**
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Sets default font sizes and/or default font size.
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See wxHtmlDCRenderer::SetStandardFonts for detailed description.
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@see SetFonts()
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*/
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void SetStandardFonts(int size = -1,
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const wxString& normal_face = wxEmptyString,
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const wxString& fixed_face = wxEmptyString);
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/**
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Set page footer. The following macros can be used inside it:
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@@DATE@ is replaced by the current date in default format
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@@PAGENUM@ is replaced by page number
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@@PAGESCNT@ is replaced by total number of pages
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@@TIME@ is replaced by the current time in default format
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@@TITLE@ is replaced with the title of the document
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@param footer
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HTML text to be used as footer.
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@param pg
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one of wxPAGE_ODD, wxPAGE_EVEN and wxPAGE_ALL constants.
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*/
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void SetFooter(const wxString& footer, int pg = wxPAGE_ALL);
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/**
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Set page header. The following macros can be used inside it:
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- @@DATE@ is replaced by the current date in default format
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- @@PAGENUM@ is replaced by page number
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- @@PAGESCNT@ is replaced by total number of pages
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- @@TIME@ is replaced by the current time in default format
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- @@TITLE@ is replaced with the title of the document
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@param header
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HTML text to be used as header.
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@param pg
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one of wxPAGE_ODD, wxPAGE_EVEN and wxPAGE_ALL constants.
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*/
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void SetHeader(const wxString& header, int pg = wxPAGE_ALL);
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/**
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Sets the parent window for dialogs.
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*/
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void SetParentWindow(wxWindow* window);
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private:
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/**
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Check whether the document fits into the page area.
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This function is called by the base class OnPreparePrinting()
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implementation and by default checks whether the document fits into
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@a pageArea horizontally and warns the user if it does not, giving him
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the possibility to cancel printing in this case (presumably in order to
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change some layout options and retry it again).
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You may override it to either suppress this check if truncation of the
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HTML being printed is acceptable or, on the contrary, add more checks to
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it, e.g. for the fit in the vertical direction if the document should
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always appear on a single page.
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@return
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@true if wxHtmlPrintout should continue or @false to cancel
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printing.
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@since 2.9.0
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*/
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virtual bool CheckFit(const wxSize& pageArea, const wxSize& docArea) const;
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};
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enum {
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wxPAGE_ODD,
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wxPAGE_EVEN,
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wxPAGE_ALL
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};
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/**
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@class wxHtmlPrintout
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This class serves as printout class for HTML documents.
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@library{wxhtml}
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@category{html,printing}
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*/
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class wxHtmlPrintout : public wxPrintout
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{
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public:
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/**
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Constructor.
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*/
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wxHtmlPrintout(const wxString& title = "Printout");
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/**
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Adds a filter to the static list of filters for wxHtmlPrintout.
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See wxHtmlFilter for further information.
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*/
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static void AddFilter(wxHtmlFilter* filter);
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/**
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This function sets font sizes and faces. See wxHtmlWindow::SetFonts
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for detailed description.
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*/
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void SetFonts(const wxString& normal_face, const wxString& fixed_face,
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const int* sizes = NULL);
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/**
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Set page footer. The following macros can be used inside it:
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- @@DATE@ is replaced by the current date in default format
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- @@PAGENUM@ is replaced by page number
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- @@PAGESCNT@ is replaced by total number of pages
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- @@TIME@ is replaced by the current time in default format
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- @@TITLE@ is replaced with the title of the document
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@param footer
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HTML text to be used as footer.
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@param pg
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one of wxPAGE_ODD, wxPAGE_EVEN and wxPAGE_ALL constants.
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*/
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void SetFooter(const wxString& footer, int pg = wxPAGE_ALL);
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/**
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Set page header. The following macros can be used inside it:
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- @@DATE@ is replaced by the current date in default format
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- @@PAGENUM@ is replaced by page number
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- @@PAGESCNT@ is replaced by total number of pages
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- @@TIME@ is replaced by the current time in default format
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- @@TITLE@ is replaced with the title of the document
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@param header
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HTML text to be used as header.
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@param pg
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one of wxPAGE_ODD, wxPAGE_EVEN and wxPAGE_ALL constants.
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*/
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void SetHeader(const wxString& header, int pg = wxPAGE_ALL);
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/**
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Prepare the class for printing this HTML @b file.
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The file may be located on any virtual file system or it may be normal file.
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*/
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void SetHtmlFile(const wxString& htmlfile);
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/**
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Prepare the class for printing this HTML text.
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@param html
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HTML text. (NOT file!)
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@param basepath
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base directory (html string would be stored there if it was in file).
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It is used to determine path for loading images, for example.
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@param isdir
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@false if basepath is filename, @true if it is directory name
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(see wxFileSystem for detailed explanation).
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*/
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void SetHtmlText(const wxString& html,
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const wxString& basepath = wxEmptyString,
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bool isdir = true);
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/**
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Sets margins in millimeters.
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Defaults to 1 inch for margins and 0.5cm for space between text and header
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and/or footer.
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*/
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void SetMargins(float top = 25.2, float bottom = 25.2,
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float left = 25.2,
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float right = 25.2,
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float spaces = 5);
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};
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