d748d323b9
(may be useful for embarked devices) git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7330 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
191 lines
6.2 KiB
C++
191 lines
6.2 KiB
C++
//
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// "$Id$"
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//
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// Printing support for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2010 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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/** \file Fl_Printer.H
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\brief declaration of classes Fl_Abstract_Printer, Fl_Printer, Fl_Device_Plugin.
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*/
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#ifndef Fl_Printer_H
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#define Fl_Printer_H
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#include <FL/Fl_Device.H>
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#include <FL/fl_draw.H>
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#include <FL/Fl_Pixmap.H>
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#include <FL/Fl_RGB_Image.H>
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#include <FL/Fl_Bitmap.H>
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#include <stdio.h>
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/**
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\brief A virtual class for print support with several platform-specific implementations.
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*
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This class has no public constructor: don't instantiate it; use Fl_Printer or Fl_PSfile_Device instead.
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\see class Fl_Printer for full documentation of member functions.
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*/
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class Fl_Abstract_Printer : public Fl_Device {
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friend class Fl_Pixmap;
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friend class Fl_RGB_Image;
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friend class Fl_Bitmap;
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private:
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#ifdef __APPLE__
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struct chain_elt {
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Fl_Image *image;
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const uchar *data;
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struct chain_elt *next;
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};
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void add_image(Fl_Image *image, const uchar *data); // adds an image to the page image list
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#endif
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void traverse(Fl_Widget *widget); // finds subwindows of widget and prints them
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protected:
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/** \brief horizontal offset to the origin of graphics coordinates */
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int x_offset;
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/** \brief vertical offset to the origin of graphics coordinates */
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int y_offset;
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/** \brief chained list of Fl_Image's used in this page */
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struct chain_elt *image_list_;
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/** \brief the printer's graphics context, if there's one, NULL otherwise */
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void *gc;
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/** \brief the constructor */
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Fl_Abstract_Printer(void) { gc = NULL; bg_r_ = bg_g_ = bg_b_ = 0; };
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#ifdef __APPLE__
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/** \brief deletes the page image list */
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void delete_image_list();
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#endif
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public:
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Fl_Device *set_current(void);
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virtual int start_job(int pagecount, int *frompage = NULL, int *topage = NULL);
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virtual int start_page(void);
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virtual int printable_rect(int *w, int *h);
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virtual void margins(int *left, int *top, int *right, int *bottom);
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virtual void origin(int x, int y);
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void origin(int *x, int *y);
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virtual void scale(float scale_x, float scale_y);
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virtual void rotate(float angle);
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virtual void translate(int x, int y);
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virtual void untranslate(void);
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void print_widget(Fl_Widget* widget, int delta_x = 0, int delta_y = 0);
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void print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x = 0, int delta_y = 0);
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virtual int end_page (void);
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virtual void end_job (void);
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};
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#if defined(__APPLE__) || defined(WIN32) || defined(FL_DOXYGEN)
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/**
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* @brief Provides an OS-independent interface to printing.
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*
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It allows to use all FLTK drawing, color, text, and clip functions, and to have them operate
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on printed page(s). There are two main, non exclusive, ways to use it.
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<ul><li>Print any widget (standard, custom, Fl_Window, Fl_Gl_Window) as it appears
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on screen, with optional translation and scaling. This is done by calling print_widget()
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or print_window_part().
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<li>Use a series of FLTK graphics commands (e.g., font, text, lines, colors, clip) to
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compose a page appropriately shaped for printing.
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</ul>
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In both cases, begin by start_job(), start_page(), printable_rect() and origin() calls
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and finish by end_page() and end_job() calls.
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*/
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class Fl_Printer : public Fl_Abstract_Printer {
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private:
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#ifdef __APPLE__
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float scale_x;
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float scale_y;
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float angle; // rotation angle in radians
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PMPrintSession printSession;
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PMPageFormat pageFormat;
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PMPrintSettings printSettings;
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#elif defined(WIN32)
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int abortPrint;
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PRINTDLG pd;
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HDC hPr;
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int prerr;
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int left_margin;
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int top_margin;
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void absolute_printable_rect(int *x, int *y, int *w, int *h);
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#endif
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public:
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/**
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@brief The constructor.
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*/
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Fl_Printer(void);
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int start_job(int pagecount, int *frompage = NULL, int *topage = NULL);
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int start_page (void);
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int printable_rect(int *w, int *h);
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void margins(int *left, int *top, int *right, int *bottom);
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void origin(int x, int y);
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#ifdef FL_DOXYGEN
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void origin(int *x, int *y);
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#endif
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void scale (float scale_x, float scale_y);
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void rotate(float angle);
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void translate(int x, int y);
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void untranslate(void);
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#ifdef FL_DOXYGEN
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void print_widget(Fl_Widget* widget, int delta_x = 0, int delta_y = 0);
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void print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x = 0, int delta_y = 0);
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#endif
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int end_page (void);
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void end_job (void);
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};
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#else
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#include <FL/Fl_PSfile_Device.H>
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class Fl_Printer : public Fl_PSfile_Device {
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public:
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Fl_Printer(void) {};
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~Fl_Printer(void) {};
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int start_job(int pages, int *firstpage = NULL, int *lastpage = NULL);
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};
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#endif
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/**
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This plugin socket allows the integration of new device drivers for special
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window or screen types. It is currently used to provide an automated printing
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service for OpenGL windows, if linked with fltk_gl.
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*/
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class Fl_Device_Plugin : public Fl_Plugin {
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public:
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/** \brief The constructor */
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Fl_Device_Plugin(const char *name)
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: Fl_Plugin(klass(), name) { }
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/** \brief Returns the class name */
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virtual const char *klass() { return "fltk:device"; }
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/** \brief Returns the plugin name */
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virtual const char *name() = 0;
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/** \brief Prints a widget
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\param p the printer
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\param w the widget
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\param x,y offsets where to print relatively to coordinates origin
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*/
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virtual int print(Fl_Abstract_Printer* p, Fl_Widget* w, int x, int y) { return 0; }
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};
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#endif // Fl_Printer_H
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//
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// End of "$Id$"
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//
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