90 lines
4.1 KiB
C++
90 lines
4.1 KiB
C++
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//
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// Declaration of class Fl_PDF_File_Surface for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2024 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#ifndef PDF_FILE_SURFACE_H
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#define PDF_FILE_SURFACE_H
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#include <FL/Fl_Paged_Device.H>
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/**
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To send graphical output to a PDF file.
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Class Fl_PDF_File_Surface is used exactly as the Fl_Printer class except for its 2 member functions begin_job() and begin_document().
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<p><b>Platform notes:</b>
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- Windows: requires "Microsoft Print to PDF" available in Windows 10 and later.
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- Wayland/X11: requires the FLTK library was built with FLTK_USE_PANGO=1.
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- macOS: requires macOS 10.9 or later.
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<p>If the running platform doesn't fulfill the requirement above, the program runs but doesn't output any PDF.
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*/
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class FL_EXPORT Fl_PDF_File_Surface : public Fl_Paged_Device {
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private:
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const char **out_filename_;
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Fl_Paged_Device *platform_surface_;
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static Fl_Paged_Device *new_platform_pdf_surface_(const char ***);
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public:
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/** \name These attributes are useful for the Wayland/X11 platform only.
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\{
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*/
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static const char * format_dialog_title;
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static const char * format_dialog_page_size;
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static const char * format_dialog_orientation;
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static const char * format_dialog_default;
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/** \} */
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Fl_PDF_File_Surface();
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~Fl_PDF_File_Surface();
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/** Prepare to draw to a PDF document identified with a file chooser.
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A dialog opens to select the location and name of the output PDF document
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as well as its page format and orientation.
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\param defaultfilename Default name for the PDF document
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\param perr NULL or address of a string that receives a message in case of error.
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To be deleted[] after use.
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\return 0 for success, 1 when the user cancelled the operation, 2 when an error occurred.
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*/
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int begin_job(const char* defaultfilename, char **perr = NULL);
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/** Don't use for this class */
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int begin_job(int, int *, int *, char **) FL_OVERRIDE {return 1;}
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/** Prepare to draw to a PDF document identified by its pathname.
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\param pathname Path name for the PDF document
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\param format The paper format for the PDF document
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\param layout The orientation for the PDF document
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\param perr NULL or address of a string that receives a message in case of error.
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To be deleted[] after use.
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\return 0 for success, 2 when an error occurred.
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*/
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int begin_document(const char* pathname,
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enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4,
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enum Fl_Paged_Device::Page_Layout layout = Fl_Paged_Device::PORTRAIT,
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char **perr = NULL);
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int printable_rect(int *w, int *h) FL_OVERRIDE { return platform_surface_->printable_rect(w,h); }
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void margins(int *left, int *top, int *right, int *bottom) FL_OVERRIDE {
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platform_surface_->margins(left,top,right,bottom);
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}
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void origin(int x, int y) FL_OVERRIDE {platform_surface_->origin(x, y);}
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void origin(int *x, int *y) FL_OVERRIDE {platform_surface_->origin(x, y);}
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void scale(float s_x, float s_y = 0) FL_OVERRIDE {platform_surface_->scale(s_x, s_y);}
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void rotate(float angle) FL_OVERRIDE {platform_surface_->rotate(angle);}
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void translate(int x, int y) FL_OVERRIDE {platform_surface_->translate(x, y);}
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void untranslate() FL_OVERRIDE {platform_surface_->untranslate();};
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int begin_page(void) FL_OVERRIDE {return platform_surface_->begin_page();}
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int end_page(void) FL_OVERRIDE {return platform_surface_->end_page();}
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void end_job(void) FL_OVERRIDE {return platform_surface_->end_job();}
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/** Returns the name of the PDF document */
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inline const char *pdf_filename() { return *out_filename_; }
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void set_current() FL_OVERRIDE { if (platform_surface_) platform_surface_->set_current(); }
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bool is_current() FL_OVERRIDE { return surface() == platform_surface_; }
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};
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#endif // PDF_FILE_SURFACE_H
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