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//
// "$Id: Fl_Printer.H 10592 2015-02-26 15:38:54Z manolo $"
//
// Printing support for the Fast Light Tool Kit (FLTK).
//
// Copyright 2010-2014 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file.  If this
// file is missing or damaged, see the license at:
//
//     http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
//     http://www.fltk.org/str.php
//

/** \file Fl_Printer.H 
 \brief declaration of classes Fl_Printer, Fl_System_Printer and Fl_PostScript_Printer.
 */

#ifndef Fl_Printer_H
#define Fl_Printer_H

#include <FL/x.H>
#include <FL/Fl_Paged_Device.H>
#include <FL/fl_draw.H>
#include <FL/Fl_Pixmap.H>
#include <FL/Fl_RGB_Image.H>
#include <FL/Fl_Bitmap.H>
#include <stdio.h>
#if !(defined(__APPLE__) || defined(WIN32))
#include <FL/Fl_PostScript.H>
#elif defined(WIN32)
#include <commdlg.h>
#endif

#if defined(__APPLE__) || defined(WIN32) || defined(FL_DOXYGEN)
/**
 Print support under MSWindows and Mac OS.

 Class Fl_System_Printer is implemented only on the MSWindows and Mac OS platforms.
 It has no public constructor.
 Use Fl_Printer instead that is cross-platform and has the same API.
 */
class Fl_System_Printer : public Fl_Paged_Device {
  friend class Fl_Printer;
private:
  /** \brief the printer's graphics context, if there's one, NULL otherwise */
  void *gc; 
  void set_current(void);
#ifdef __APPLE__
  float scale_x;
  float scale_y;
  float angle; // rotation angle in radians
  PMPrintSession  printSession;
  PMPageFormat    pageFormat;
  PMPrintSettings printSettings;
#elif defined(WIN32)
  int   abortPrint;
  PRINTDLG      pd;
  HDC           hPr;
  int           prerr;
  int left_margin;
  int top_margin;
  void absolute_printable_rect(int *x, int *y, int *w, int *h);
#endif
protected:
  /** \brief The constructor */
  Fl_System_Printer(void);
public:
  static const char *class_id;
  const char *class_name() {return class_id;};
  int start_job(int pagecount, int *frompage = NULL, int *topage = NULL);
  int start_page (void);
  int printable_rect(int *w, int *h);
  void margins(int *left, int *top, int *right, int *bottom);
  void origin(int *x, int *y);
  void origin(int x, int y);
  void scale (float scale_x, float scale_y = 0.);
  void rotate(float angle);
  void translate(int x, int y);
  void untranslate(void);
  int end_page (void);
  void end_job (void);
#ifdef __APPLE__
  void print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x, int delta_y);
#endif
  /** \brief The destructor */
  ~Fl_System_Printer(void);
}; // class Fl_System_Printer

#endif
  
#if !(defined(__APPLE__) || defined(WIN32) )
/**
 Print support under Unix/Linux.
 
 Class Fl_PostScript_Printer is implemented only on the Unix/Linux platform.
 It has no public constructor.
 Use Fl_Printer instead that is cross-platform and has the same API.
 */
class Fl_PostScript_Printer : public Fl_PostScript_File_Device {
  friend class Fl_Printer;
protected:
  /** The constructor */
  Fl_PostScript_Printer(void) {};
public:
  static const char *class_id;
  const char *class_name() {return class_id;};
  int start_job(int pages, int *firstpage = NULL, int *lastpage = NULL);
};

#endif

/**
 * \brief OS-independent print support.
 *
 Fl_Printer allows to use all drawing, color, text, image, and clip FLTK functions, and to have them operate
 on printed page(s). There are two main, non exclusive, ways to use it.
 <ul><li>Print any widget (standard, custom, Fl_Window, Fl_Gl_Window) as it appears 
 on screen, with optional translation, scaling and rotation. This is done by calling print_widget(), 
 print_window() or print_window_part().
 <li>Use a series of FLTK graphics commands (e.g., font, text, lines, colors, clip, image) to
 compose a page appropriately shaped for printing. 
 </ul>
 In both cases, begin by start_job(), start_page(), printable_rect() and origin() calls
 and finish by end_page() and end_job() calls.
 <p>Example of use: print a widget centered in a page
 \code
 #include <FL/Fl_Printer.H>
 #include <FL/fl_draw.H>
 int width, height;
 Fl_Widget *widget = ...  // a widget we want printed
 Fl_Printer *printer = new Fl_Printer();
 if (printer->start_job(1) == 0) {
  printer->start_page();
  printer->printable_rect(&width, &height);
  fl_color(FL_BLACK);
  fl_line_style(FL_SOLID, 2);
  fl_rect(0, 0, width, height);
  fl_font(FL_COURIER, 12);
  time_t now; time(&now); fl_draw(ctime(&now), 0, fl_height());
  printer->origin(width/2, height/2);
  printer->print_widget(widget, -widget->w()/2, -widget->h()/2);
  printer->end_page();
  printer->end_job();
 }
 delete printer;
 \endcode
 <b>Platform specifics</b>
 <ul>
 <li>Unix/Linux platforms:
 Unless it has been previously changed, the default paper size is A4.
 To change that, press the "Properties" button of the "Print" dialog window
 opened by an Fl_Printer::start_job() call. This opens a "Printer Properties" window where it's
 possible to select the adequate paper size. Finally press the "Save" button therein to assign
 the chosen paper size to the chosen printer for this and all further print operations.
 <br>Class Fl_RGB_Image prints but loses its transparency if it has one.
 See class Fl_PostScript_Graphics_Driver for a description of how UTF-8 strings appear in print.
 Use the static public attributes of this class to set the print dialog to other languages 
 than English. For example, the "Printer:" dialog item Fl_Printer::dialog_printer can be set to French with:
 \code
 Fl_Printer::dialog_printer = "Imprimante:";
 \endcode
 before creation of the Fl_Printer object.
 Use Fl_PostScript_File_Device::file_chooser_title to customize the title of the file chooser dialog that opens
 when using the "Print To File" option of the print dialog. 
 <li>MSWindows platform: Transparent Fl_RGB_Image 's don't print with exact transparency on most printers.
 Fl_RGB_Image 's don't rotate() well.
 A workaround is to use the print_window_part() call. 
 <li>Mac OS X platform: all graphics requests print as on display.
 </ul>
 */
class FL_EXPORT Fl_Printer : public Fl_Paged_Device {
public:
  static const char *class_id;
  const char *class_name() {return class_id;};
  /** \brief The constructor */
  Fl_Printer(void);
  int start_job(int pagecount, int *frompage = NULL, int *topage = NULL);
  int start_page(void);
  int printable_rect(int *w, int *h);
  void margins(int *left, int *top, int *right, int *bottom);
  void origin(int *x, int *y);
  void origin(int x, int y);
  void scale(float scale_x, float scale_y = 0.);
  void rotate(float angle);
  void translate(int x, int y);
  void untranslate(void);
  int end_page (void);
  void end_job (void);
  void print_widget(Fl_Widget* widget, int delta_x=0, int delta_y=0);
  void print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x=0, int delta_y=0);
  void set_current(void);
  Fl_Graphics_Driver* driver(void);
  /** \brief The destructor */
  ~Fl_Printer(void);
 
  /** \name These attributes are effective under the Xlib platform only.
   \{
   */  
  static const char *dialog_title; 
  static const char *dialog_printer; 
  static const char *dialog_range; 
  static const char *dialog_copies; 
  static const char *dialog_all; 
  static const char *dialog_pages;
  static const char *dialog_from;
  static const char *dialog_to;
  static const char *dialog_properties;
  static const char *dialog_copyNo;
  static const char *dialog_print_button;
  static const char *dialog_cancel_button;
  static const char *dialog_print_to_file;
  static const char *property_title;
  static const char *property_pagesize;
  static const char *property_mode;
  static const char *property_use;
  static const char *property_save;
  static const char *property_cancel;
  /** \} */ 
private:
#if defined(WIN32) || defined(__APPLE__)
  Fl_System_Printer *printer;
#else
  Fl_PostScript_Printer *printer;
#endif
};

#endif // Fl_Printer_H

//
// End of "$Id: Fl_Printer.H 10592 2015-02-26 15:38:54Z manolo $"
//