Remove Quartz graphics driver from public view.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11020 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 731 insertions, 0 deletions

diff --git a/src/cfg_gfx/xlib.H b/src/cfg_gfx/xlib.H
new file mode 100644
index 000000000..222a7c71f
--- /dev/null
+++ b/src/cfg_gfx/xlib.H
@@ -0,0 +1,731 @@
+//
+// "$Id$"
+//
+// Definition of classes Fl_Device, Fl_Graphics_Driver, Fl_Surface_Device, Fl_Display_Device
+// 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_Device.H 
+ \brief declaration of classes Fl_Device, Fl_Graphics_Driver, Fl_Surface_Device, 
+ Fl_Display_Device, Fl_Device_Plugin.
+*/
+
+#ifndef Fl_Device_H
+#define Fl_Device_H
+
+#include <FL/x.H>
+#include <FL/Fl_Plugin.H>
+#include <FL/Fl_Image.H>
+#include <FL/Fl_Bitmap.H>
+#include <FL/Fl_Pixmap.H>
+#include <FL/Fl_RGB_Image.H>
+#include <stdlib.h>
+
+class Fl_Graphics_Driver;
+class Fl_Font_Descriptor;
+/** \brief Points to the driver that currently receives all graphics requests */
+FL_EXPORT extern Fl_Graphics_Driver *fl_graphics_driver;
+
+/**
+ signature of image generation callback function.
+ \param[in]  data  user data passed to function
+ \param[in]  x,y,w position and width of scan line in image
+ \param[out] buf   buffer for generated image data. You must copy \p w
+ pixels from scanline \p y, starting at pixel \p x
+ to this buffer.
+ */
+typedef void (*Fl_Draw_Image_Cb)(void* data,int x,int y,int w,uchar* buf);
+
+// typedef what the x,y fields in a point are:
+#ifdef WIN32
+typedef int COORD_T;
+#  define XPOINT XPoint
+#elif defined(__APPLE__)
+typedef float COORD_T;
+typedef struct { float x; float y; } QPoint;
+#  define XPOINT QPoint
+extern float fl_quartz_line_width_;
+#elif defined(FL_PORTING)
+# pragma message "FL_PORTING: define types for COORD_T and XPOINT"
+typedef int COORD_T; // default if not ported
+typedef struct { int x; int y; } QPoint;
+#  define XPOINT QPoint
+#else
+typedef short COORD_T;
+#  define XPOINT XPoint
+#endif
+
+/**
+ All graphical output devices and all graphics systems.
+ This class supports a rudimentary system of run-time type information.
+ */
+class FL_EXPORT Fl_Device {
+public:
+  /** A string that identifies each subclass of Fl_Device.
+     Function class_name() applied to a device of this class returns this string.
+   */
+  static const char *class_id;
+  /** 
+   Returns the name of the class of this object. 
+   Use of the class_name() function is discouraged because it will be removed from future FLTK versions.
+   
+   The class of an instance of an Fl_Device subclass can be checked with code such as:
+   \code
+   if ( instance->class_name() == Fl_Printer::class_id ) { ... }
+   \endcode
+   */
+  virtual const char *class_name() {return class_id;};
+  /** 
+   Virtual destructor.
+   
+   The destructor of Fl_Device must be virtual to make the destructors of
+   derived classes being called correctly on destruction.
+   */
+  virtual ~Fl_Device() {};
+};
+
+#define FL_REGION_STACK_SIZE 10
+#define FL_MATRIX_STACK_SIZE 32
+/**
+ \brief A virtual class subclassed for each graphics driver FLTK uses.
+ Typically, FLTK applications do not use directly objects from this class. Rather, they perform
+ drawing operations (e.g., fl_rectf()) that operate on the current drawing surface (see Fl_Surface_Device).
+ Drawing operations are functionally presented in \ref drawing and as function lists
+ in the \ref fl_drawings and \ref fl_attributes modules. The \ref fl_graphics_driver global variable
+ gives at any time the graphics driver used by all drawing operations. Its value changes when
+ drawing operations are directed to another drawing surface by Fl_Surface_Device::set_current().
+ 
+ \p The Fl_Graphics_Driver class is of interest if one wants to perform new kinds of drawing operations.
+ An example would be to draw to a PDF file. This would involve creating a new Fl_Graphics_Driver derived 
+ class. This new class should implement all virtual methods of the Fl_Graphics_Driver class
+ to support all FLTK drawing functions.
+  */
+class FL_EXPORT Fl_Graphics_Driver : public Fl_Device {
+public:
+  /** A 2D coordinate transformation matrix
+   */
+  struct matrix {double a, b, c, d, x, y;};
+protected:
+  static const matrix m0;
+  Fl_Font font_; // current font
+  Fl_Fontsize size_; // current font size
+  Fl_Color color_; // current color
+  int sptr;
+  static const int matrix_stack_size = FL_MATRIX_STACK_SIZE;
+  matrix stack[FL_MATRIX_STACK_SIZE];
+  matrix m;
+  int n, p_size, gap_;
+  XPOINT *p;
+  int what;
+  int fl_clip_state_number;
+  int rstackptr;
+  static const int region_stack_max = FL_REGION_STACK_SIZE - 1;
+  Fl_Region rstack[FL_REGION_STACK_SIZE];
+#ifdef WIN32
+  int numcount;
+  int counts[20];
+#elif defined(__APPLE__)
+  // not needed
+#elif defined(FL_PORTING)
+# pragma message "FL_PORTING: define variables for Fl_Graphics_Driver if needed."
+  // not needed
+#else
+  // not needed in X11
+#endif
+  Fl_Font_Descriptor *font_descriptor_;
+  void transformed_vertex0(COORD_T x, COORD_T y);
+  void fixloop();
+  
+protected:
+#ifndef FL_DOXYGEN
+  enum {LINE, LOOP, POLYGON, POINT_};
+  inline int vertex_no() { return n; }
+  inline XPOINT *vertices() {return p;}
+  inline int vertex_kind() {return what;}
+#endif
+/*  ** \brief red color for background and/or mixing if device does not support masking or alpha *
+  uchar bg_r_; 
+  ** \brief green color for background and/or mixing if device does not support masking or alpha *
+  uchar bg_g_; 
+  ** \brief blue color for background and/or mixing if device does not support masking or alpha *
+  uchar bg_b_; */
+  friend class Fl_Pixmap;
+  friend class Fl_Bitmap;
+  friend class Fl_RGB_Image;
+  friend void fl_line_style(int style, int width, char* dashes);
+  friend void fl_draw(const char *str, int n, int x, int y);
+#ifdef __APPLE__
+  friend void fl_draw(const char *str, int n, float x, float y);
+#elif defined(WIN32)
+  // not needed
+#elif defined(FL_PORTING)
+# pragma message "FL_PORTING: add floating point text positioning if your platform supports it"
+#else 
+  // not needed
+#endif
+  friend void fl_draw(int angle, const char *str, int n, int x, int y);
+  friend void fl_rtl_draw(const char *str, int n, int x, int y);
+  friend void fl_font(Fl_Font face, Fl_Fontsize size);
+  friend void fl_color(Fl_Color c);
+  friend void fl_color(uchar r, uchar g, uchar b);
+  friend void fl_begin_points();
+  friend void fl_begin_line();
+  friend void fl_begin_loop();
+  friend void fl_begin_polygon();
+  friend void fl_vertex(double x, double y);
+  friend void fl_curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3);
+  friend void fl_circle(double x, double y, double r);
+  friend void fl_arc(double x, double y, double r, double start, double end);
+  friend void fl_arc(int x, int y, int w, int h, double a1, double a2);
+  friend void fl_pie(int x, int y, int w, int h, double a1, double a2);
+  friend void fl_end_points();
+  friend void fl_end_line();
+  friend void fl_end_loop();
+  friend void fl_end_polygon();
+  friend void fl_transformed_vertex(double xf, double yf);
+  friend void fl_begin_complex_polygon();
+  friend void fl_gap();
+  friend void fl_end_complex_polygon();
+  friend void fl_push_matrix();
+  friend void fl_pop_matrix();
+  friend void fl_mult_matrix(double a, double b, double c, double d, double x, double y);
+  friend void fl_scale(double x, double y);
+  friend void fl_scale(double x);
+  friend void fl_translate(double x, double y);
+  friend void fl_rotate(double d);
+  friend double fl_transform_x(double x, double y);
+  friend double fl_transform_y(double x, double y);
+  friend double fl_transform_dx(double x, double y);
+  friend double fl_transform_dy(double x, double y);
+
+  friend void fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D, int L);
+  friend void fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D, int L);
+  friend void fl_draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D);
+  friend FL_EXPORT void fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D);
+  friend FL_EXPORT void gl_start();
+  friend void fl_copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+  matrix *fl_matrix; /**< Points to the current coordinate transformation matrix */
+
+  /** \brief The constructor. */
+  Fl_Graphics_Driver();
+  /** \brief see fl_line_style(int style, int width, char* dashes). */
+  virtual void line_style(int style, int width=0, char* dashes=0);
+  /** \brief see fl_draw(const char *str, int n, int x, int y). */
+  virtual void draw(const char *str, int n, int x, int y) {}
+#ifdef __APPLE__
+  virtual void draw(const char *str, int n, float x, float y) { draw(str, n, (int)(x+0.5), (int)(y+0.5));}
+#elif defined(WIN32)
+  // not needed
+#elif defined(FL_PORTING)
+# pragma message "FL_PORTING: add floating point text positioning if your platform supports it"
+#else
+  // not needed
+#endif
+  /** \brief see fl_draw(int angle, const char *str, int n, int x, int y). */
+  virtual void draw(int angle, const char *str, int n, int x, int y) {}
+  /** \brief see fl_rtl_draw(const char *str, int n, int x, int y). */
+  virtual void rtl_draw(const char *str, int n, int x, int y) {};
+  /** \brief see fl_color(Fl_Color c). */
+  virtual void color(Fl_Color c) {color_ = c;}
+  /** \brief see fl_color(uchar r, uchar g, uchar b). */
+  virtual void color(uchar r, uchar g, uchar b) {}
+  /** \brief see fl_begin_points(). */
+  virtual void begin_points();
+  /** \brief see fl_begin_line(). */
+  virtual void begin_line();
+  /** \brief see fl_begin_loop(). */
+  virtual void begin_loop();
+  /** \brief see fl_begin_polygon(). */
+  virtual void begin_polygon();
+  /** \brief see fl_vertex(double x, double y). */
+  virtual void vertex(double x, double y);
+  /** \brief see fl_curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3). */
+  virtual void curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3);
+  /** \brief see fl_circle(double x, double y, double r). */
+  virtual void circle(double x, double y, double r);
+  /** \brief see fl_arc(double x, double y, double r, double start, double end). */
+  virtual void arc(double x, double y, double r, double start, double end);
+  /** \brief see fl_arc(int x, int y, int w, int h, double a1, double a2). */
+  virtual void arc(int x, int y, int w, int h, double a1, double a2);
+  /** \brief see fl_pie(int x, int y, int w, int h, double a1, double a2). */
+  virtual void pie(int x, int y, int w, int h, double a1, double a2);
+  /** \brief see fl_end_points(). */
+  virtual void end_points();
+  /** \brief see fl_end_line(). */
+  virtual void end_line();
+  /** \brief see fl_end_loop(). */
+  virtual void end_loop();
+  /** \brief see fl_end_polygon(). */
+  virtual void end_polygon();
+  /** \brief see fl_begin_complex_polygon(). */
+  virtual void begin_complex_polygon();
+  /** \brief see fl_gap(). */
+  virtual void gap();
+  /** \brief see fl_end_complex_polygon(). */
+  virtual void end_complex_polygon();
+  /** \brief see fl_transformed_vertex(double xf, double yf). */
+  virtual void transformed_vertex(double xf, double yf);
+
+  /** \brief see fl_push_matrix(). */
+  void push_matrix();
+  /** \brief see fl_pop_matrix(). */
+  void pop_matrix();
+  /** \brief see fl_mult_matrix(double a, double b, double c, double d, double x, double y). */
+  void mult_matrix(double a, double b, double c, double d, double x, double y);
+  /** \brief see fl_scale(double x, double y). */
+  inline void scale(double x, double y) { mult_matrix(x,0,0,y,0,0); }
+  /** \brief see fl_scale(double x). */
+  inline void scale(double x) { mult_matrix(x,0,0,x,0,0); }
+  /** \brief see fl_translate(double x, double y). */
+  inline void translate(double x,double y) { mult_matrix(1,0,0,1,x,y); }
+  /** \brief see fl_rotate(double d). */
+  void rotate(double d);
+  /** \brief see fl_transform_x(double x, double y). */
+  double transform_x(double x, double y);
+  /** \brief see fl_transform_y(double x, double y). */
+  double transform_y(double x, double y);
+  /** \brief see fl_transform_dx(double x, double y). */
+  double transform_dx(double x, double y);
+  /** \brief see fl_transform_dy(double x, double y). */
+  double transform_dy(double x, double y);
+
+  // Images
+  /** \brief see fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D, int L). */
+  virtual   void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0) {}
+  /** \brief see fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D, int L). */
+  virtual   void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0) {}
+  /** \brief see fl_draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D). */
+  virtual   void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3) {}
+  /** \brief see fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D). */
+  virtual   void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1) {}
+  // Image classes
+  /** \brief Draws an Fl_RGB_Image object to the device. 
+   *
+   Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+   the image offset by the cx and cy arguments.
+   */
+  virtual   void draw(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy) {}
+  /** \brief Draws an Fl_Pixmap object to the device. 
+   *
+   Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+   the image offset by the cx and cy arguments.
+   */
+  virtual   void draw(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy) {}
+  /** \brief Draws an Fl_Bitmap object to the device. 
+   *
+   Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+   the image offset by the cx and cy arguments.
+   */
+  virtual void draw(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy) {}
+#if FLTK_ABI_VERSION >= 10301
+  virtual
+#endif
+  void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+  
+public:
+  static const char *class_id;
+  virtual const char *class_name() {return class_id;};
+  /** \brief see fl_font(Fl_Font face, Fl_Fontsize size). */
+  virtual void font(Fl_Font face, Fl_Fontsize fsize) {font_ = face; size_ = fsize;}
+  /** \brief see fl_font(void). */
+  Fl_Font font() {return font_; }
+  /** \brief see fl_size(). */
+  Fl_Fontsize size() {return size_; }
+  /** \brief see fl_width(const char *str, int n). */
+  virtual double width(const char *str, int n) {return 0;}
+  /** \brief see fl_width(unsigned int n). */
+  virtual inline double width(unsigned int c) { char ch = (char)c; return width(&ch, 1); }
+  /** \brief see fl_text_extents(const char*, int n, int& dx, int& dy, int& w, int& h). */
+  virtual void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h);
+  /** \brief see fl_height(). */
+  virtual int height() {return size();}
+  /** \brief see fl_descent(). */
+  virtual int descent() {return 0;}
+  /** \brief see fl_color(void). */
+  Fl_Color color() {return color_;}
+  /** Returns a pointer to the current Fl_Font_Descriptor for the graphics driver */
+  inline Fl_Font_Descriptor *font_descriptor() { return font_descriptor_;}
+  /** Sets the current Fl_Font_Descriptor for the graphics driver */
+  inline void font_descriptor(Fl_Font_Descriptor *d) { font_descriptor_ = d;}
+#if FLTK_ABI_VERSION >= 10304 || defined(FL_DOXYGEN)
+  virtual
+#endif
+  int draw_scaled(Fl_Image *img, int X, int Y, int W, int H);
+  /** \brief The destructor */
+  virtual ~Fl_Graphics_Driver() { if (p) free(p); }
+
+  // === all code below in this class has been to the reorganisation FL_PORTING process
+protected:
+  // --- implementation is in src/fl_rect.cxx which includes src/cfg_gfx/quartz_rect.cxx
+  friend  void fl_point(int x, int y);
+  virtual void    point(int x, int y) = 0;
+  friend  void fl_rect(int x, int y, int w, int h);
+  virtual void    rect(int x, int y, int w, int h) = 0;
+  friend  void fl_rectf(int x, int y, int w, int h);
+  virtual void    rectf(int x, int y, int w, int h) = 0;
+  friend  void fl_line(int x, int y, int x1, int y1);
+  virtual void    line(int x, int y, int x1, int y1) = 0;
+  friend  void fl_line(int x, int y, int x1, int y1, int x2, int y2);
+  virtual void    line(int x, int y, int x1, int y1, int x2, int y2) = 0;
+  friend  void fl_xyline(int x, int y, int x1);
+  virtual void    xyline(int x, int y, int x1) = 0;
+  friend  void fl_xyline(int x, int y, int x1, int y2);
+  virtual void    xyline(int x, int y, int x1, int y2) = 0;
+  friend  void fl_xyline(int x, int y, int x1, int y2, int x3);
+  virtual void    xyline(int x, int y, int x1, int y2, int x3) = 0;
+  friend  void fl_yxline(int x, int y, int y1);
+  virtual void    yxline(int x, int y, int y1) = 0;
+  friend  void fl_yxline(int x, int y, int y1, int x2);
+  virtual void    yxline(int x, int y, int y1, int x2) = 0;
+  friend  void fl_yxline(int x, int y, int y1, int x2, int y3);
+  virtual void    yxline(int x, int y, int y1, int x2, int y3) = 0;
+  friend  void fl_loop(int x0, int y0, int x1, int y1, int x2, int y2);
+  virtual void    loop(int x0, int y0, int x1, int y1, int x2, int y2) = 0;
+  friend  void fl_loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  virtual void    loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) = 0;
+  friend  void fl_polygon(int x0, int y0, int x1, int y1, int x2, int y2);
+  virtual void    polygon(int x0, int y0, int x1, int y1, int x2, int y2) = 0;
+  friend  void fl_polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  virtual void    polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3) = 0;
+  // --- clipping
+  friend  void fl_push_clip(int x, int y, int w, int h);
+  virtual void    push_clip(int x, int y, int w, int h) = 0;
+  friend  int fl_clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
+  virtual int    clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H) = 0;
+  friend  int fl_not_clipped(int x, int y, int w, int h);
+  virtual int    not_clipped(int x, int y, int w, int h) = 0;
+  friend  void fl_push_no_clip();
+  virtual void    push_no_clip() = 0;
+  friend  void fl_pop_clip();
+  virtual void    pop_clip() = 0;
+  friend  Fl_Region fl_clip_region();
+  virtual Fl_Region    clip_region();              // has default implementation
+  friend  void fl_clip_region(Fl_Region r);
+  virtual void    clip_region(Fl_Region r);        // has default implementation
+  friend  void fl_restore_clip();
+  virtual void    restore_clip();
+};
+
+
+#if defined(__APPLE__)
+
+/**
+ \brief The Mac OS X-specific graphics class.
+ *
+ This class is implemented only on the Mac OS X platform.
+ */
+class FL_EXPORT Fl_Quartz_Graphics_Driver : public Fl_Graphics_Driver {
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  void color(Fl_Color c);
+  void color(uchar r, uchar g, uchar b);
+  void draw(const char* str, int n, int x, int y);
+#ifdef __APPLE__
+  void draw(const char *str, int n, float x, float y);
+#endif
+  void draw(int angle, const char *str, int n, int x, int y);
+  void rtl_draw(const char* str, int n, int x, int y);
+  void font(Fl_Font face, Fl_Fontsize size);
+  void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy);
+  int draw_scaled(Fl_Image *img, int XP, int YP, int WP, int HP);
+  void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0);
+  void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3);
+  void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0);
+  void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
+  double width(const char *str, int n);
+  double width(unsigned int c);
+  void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h);
+  int height();
+  int descent();
+#if ! defined(FL_DOXYGEN)
+  static Fl_Offscreen create_offscreen_with_alpha(int w, int h);
+#endif
+  void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+protected:
+  // --- implementation is in src/fl_rect.cxx which includes src/cfg_gfx/quartz_rect.cxx
+  void point(int x, int y);
+  void rect(int x, int y, int w, int h);
+  void rectf(int x, int y, int w, int h);
+  void line(int x, int y, int x1, int y1);
+  void line(int x, int y, int x1, int y1, int x2, int y2);
+  void xyline(int x, int y, int x1);
+  void xyline(int x, int y, int x1, int y2);
+  void xyline(int x, int y, int x1, int y2, int x3);
+  void yxline(int x, int y, int y1);
+  void yxline(int x, int y, int y1, int x2);
+  void yxline(int x, int y, int y1, int x2, int y3);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  // --- clipping
+  void push_clip(int x, int y, int w, int h);
+  int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
+  int not_clipped(int x, int y, int w, int h);
+  void push_no_clip();
+  void pop_clip();
+  void restore_clip();
+};
+
+// FIXME: add Fl_Quartz_Printer_Graphics_Driver
+
+#elif defined(WIN32) || defined(FL_DOXYGEN)
+
+/**
+ \brief The MSWindows-specific graphics class.
+ *
+ This class is implemented only on the MSWindows platform.
+ */
+class FL_EXPORT Fl_GDI_Graphics_Driver : public Fl_Graphics_Driver {
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  void color(Fl_Color c);
+  void color(uchar r, uchar g, uchar b);
+  void draw(const char* str, int n, int x, int y);
+  void draw(int angle, const char *str, int n, int x, int y);
+  void rtl_draw(const char* str, int n, int x, int y);
+  void font(Fl_Font face, Fl_Fontsize size);
+  void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0);
+  void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3);
+  void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0);
+  void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
+  double width(const char *str, int n);
+  double width(unsigned int c);
+  void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h);
+  int height();
+  int descent();
+#if ! defined(FL_DOXYGEN)
+  void copy_offscreen_with_alpha(int x,int y,int w,int h,HBITMAP bitmap,int srcx,int srcy);
+#endif
+  void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+protected:
+  // --- implementation is in src/fl_rect.cxx which includes src/cfg_gfx/gdi_rect.cxx
+  void point(int x, int y);
+  void rect(int x, int y, int w, int h);
+  void rectf(int x, int y, int w, int h);
+  void line(int x, int y, int x1, int y1);
+  void line(int x, int y, int x1, int y1, int x2, int y2);
+  void xyline(int x, int y, int x1);
+  void xyline(int x, int y, int x1, int y2);
+  void xyline(int x, int y, int x1, int y2, int x3);
+  void yxline(int x, int y, int y1);
+  void yxline(int x, int y, int y1, int x2);
+  void yxline(int x, int y, int y1, int x2, int y3);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  // --- clipping
+  void push_clip(int x, int y, int w, int h);
+  int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
+  int not_clipped(int x, int y, int w, int h);
+  void push_no_clip();
+  void pop_clip();
+  void restore_clip();
+};
+
+/**
+ The graphics driver used when printing on MSWindows.
+ *
+ This class is implemented only on the MSWindows platform. It 's extremely similar to Fl_GDI_Graphics_Driver.
+ */
+class FL_EXPORT Fl_GDI_Printer_Graphics_Driver : public Fl_GDI_Graphics_Driver {
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_Bitmap *bm, int XP, int YP, int WP, int HP, int cx, int cy);
+  int draw_scaled(Fl_Image *img, int XP, int YP, int WP, int HP);
+};
+
+#elif defined(FL_PORTING)
+
+# pragma message "FL_PORTING: define a native graphics driver Fl_xxx_Graphics_Driver"
+class FL_EXPORT Fl_XXX_Graphics_Driver : public Fl_Graphics_Driver {
+protected:
+  // --- recently moved implementations (see FL_PORTING efforts)
+  void point(int x, int y) { }
+  void rect(int x, int y, int w, int h) { }
+};
+
+#else // X11
+
+/**
+ \brief The Xlib-specific graphics class.
+ *
+ This class is implemented only on the Xlib platform.
+ */
+class FL_EXPORT Fl_Xlib_Graphics_Driver : public Fl_Graphics_Driver {
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  void color(Fl_Color c);
+  void color(uchar r, uchar g, uchar b);
+  void draw(const char* str, int n, int x, int y);
+  void draw(int angle, const char *str, int n, int x, int y);
+  void rtl_draw(const char* str, int n, int x, int y);
+  void font(Fl_Font face, Fl_Fontsize size);
+  void draw(Fl_Pixmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_Bitmap *pxm, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw(Fl_RGB_Image *img, int XP, int YP, int WP, int HP, int cx, int cy);
+  void draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0);
+  void draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3);
+  void draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0);
+  void draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1);
+  double width(const char *str, int n);
+  double width(unsigned int c);
+  void text_extents(const char*, int n, int& dx, int& dy, int& w, int& h);
+  int height();
+  int descent();
+  void copy_offscreen(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+#if ! defined(FL_DOXYGEN)
+  void copy_offscreen_with_alpha(int x, int y, int w, int h, Fl_Offscreen pixmap, int srcx, int srcy);
+#endif
+protected:
+  // --- implementation is in src/fl_rect.cxx which includes src/cfg_gfx/xlib_rect.cxx
+  void point(int x, int y);
+  void rect(int x, int y, int w, int h);
+  void rectf(int x, int y, int w, int h);
+  void line(int x, int y, int x1, int y1);
+  void line(int x, int y, int x1, int y1, int x2, int y2);
+  void xyline(int x, int y, int x1);
+  void xyline(int x, int y, int x1, int y2);
+  void xyline(int x, int y, int x1, int y2, int x3);
+  void yxline(int x, int y, int y1);
+  void yxline(int x, int y, int y1, int x2);
+  void yxline(int x, int y, int y1, int x2, int y3);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2);
+  void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
+  void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
+  // --- clipping
+  void push_clip(int x, int y, int w, int h);
+  int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
+  int not_clipped(int x, int y, int w, int h);
+  void push_no_clip();
+  void pop_clip();
+  void restore_clip();
+};
+
+#endif
+
+/**
+ A drawing surface that's susceptible to receive graphical output.
+ Any FLTK application has at any time a current drawing surface to which all drawing requests are directed.
+ The current surface is given by Fl_Surface_Device::surface().
+ When main() begins running, the current drawing surface has been set to the computer's display, 
+ an instance of the Fl_Display_Device class.
+
+ A drawing surface other than the computer's display, is typically used as follows:
+ <ol><li> Create \c surface, an object from a particular Fl_Surface_Device derived class (e.g., Fl_Copy_Surface, Fl_Printer).
+ <li> Memorize what is the current drawing surface with <tt> Fl_Surface_Device *old_current = Fl_Surface_Device::surface();</tt>
+ <li> Call \c surface->set_current(); to redirect all graphics requests to \c surface which becomes the new
+ current drawing surface (not necessary with class Fl_Printer because it is done by Fl_Printer::start_job()).
+ <li> At this point any of the \ref fl_drawings (e.g., fl_rect()) or the \ref fl_attributes or \ref drawing_images functions
+ (e.g., fl_draw_image(), Fl_Image::draw()) operates on the new current drawing surface.
+ Certain drawing surfaces allow additional ways to draw to them (e.g., Fl_Printer::print_widget(), Fl_Image_Surface::draw()).
+ <li> After all drawing requests have been performed, redirect graphics requests back to their previous destination
+ with \c old_current->set_current();.
+ <li> Delete \c surface.
+ </ol>
+ */
+class FL_EXPORT Fl_Surface_Device : public Fl_Device {
+  /** \brief The graphics driver in use by this surface. */
+  Fl_Graphics_Driver *_driver;
+  static Fl_Surface_Device *_surface; // the surface that currently receives graphics output
+  static Fl_Surface_Device *default_surface(); // create surface is none exists yet
+protected:
+  /** \brief Constructor that sets the graphics driver to use for the created surface. */
+  Fl_Surface_Device(Fl_Graphics_Driver *graphics_driver) {_driver = graphics_driver; };
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  virtual void set_current(void);
+  /** \brief Sets the graphics driver of this drawing surface. */
+  inline void driver(Fl_Graphics_Driver *graphics_driver) {_driver = graphics_driver;};
+  /** \brief Returns the graphics driver of this drawing surface. */
+  inline Fl_Graphics_Driver *driver() {return _driver; };
+  /** The current drawing surface.
+   In other words, the Fl_Surface_Device object that currently receives all graphics output */
+  static inline Fl_Surface_Device *surface() {
+    return _surface ? _surface : default_surface();
+  };
+  /** \brief The destructor. */
+  virtual ~Fl_Surface_Device() {}
+};
+
+/**
+ A display to which the computer can draw.
+ When the program begins running, an Fl_Display_Device instance has been created and made the current drawing surface.
+ There is no need to create any other object of this class.
+ */
+class FL_EXPORT Fl_Display_Device : public Fl_Surface_Device {
+  friend class Fl_Quartz_Graphics_Driver;
+  static Fl_Display_Device *_display; // the platform display device
+#ifdef __APPLE__
+  friend class Fl_X;
+  friend class Fl_Graphics_Driver;
+  static bool high_res_window_; //< true when drawing to a window of a retina display (Mac OS X only)
+  static bool high_resolution() {return high_res_window_;}
+#elif defined(WIN32)
+#elif defined(FL_PORTING)
+# pragma message "FL_PORTING: implement functions for extra high res drawing if your platform supports it"
+#else
+#endif
+public:
+  static const char *class_id;
+  const char *class_name() {return class_id;};
+  Fl_Display_Device(Fl_Graphics_Driver *graphics_driver);
+  static Fl_Display_Device *display_device();
+};
+
+/**
+ This plugin socket allows the integration of new device drivers for special
+ window or screen types. It is currently used to provide an automated printing
+ service and screen capture for OpenGL windows, if linked with fltk_gl.
+ */
+class FL_EXPORT Fl_Device_Plugin : public Fl_Plugin {
+public:
+  /** \brief The constructor */
+  Fl_Device_Plugin(const char *pluginName)
+  : Fl_Plugin(klass(), pluginName) { }
+  /** \brief Returns the class name */
+  virtual const char *klass() { return "fltk:device"; }
+  /** \brief Returns the plugin name */
+  virtual const char *name() = 0;
+  /** \brief Prints a widget 
+   \param w the widget
+   \param x,y offsets where to print relatively to coordinates origin
+   \param height height of the current drawing area
+   */
+  virtual int print(Fl_Widget* w, int x, int y, int height) = 0;
+  /** captures a rectangle of a widget as an image
+   \return The captured pixels as an RGB image
+   */
+  virtual Fl_RGB_Image* rectangle_capture(Fl_Widget *widget, int x, int y, int w, int h) = 0;
+};
+
+#endif // Fl_Device_H
+
+//
+// End of "$Id$".
+//