New CMake option OPTION_PRINT_SUPPORT turned ON by default

When the option is off, file config.h defines NO_PRINT_SUPPORT 
which in turn produces a library without print support, that is, 
class Fl_Printer does nothing.
When off, the FLTK library is somewhat smaller.
Can be turned off only when the X11 library is used.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11127 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CMake/options.cmake

@@ -78,6 +78,7 @@ option(OPTION_BUILD_SHARED_LIBS
 
 #######################################################################
 option(OPTION_BUILD_EXAMPLES "build example programs" ON)
+option(OPTION_PRINT_SUPPORT "allow print support" ON)
 
 #######################################################################
 if(DOXYGEN_FOUND)
@@ -354,6 +355,13 @@ else()
    set(FLTK_XDBE_FOUND FALSE)
 endif(OPTION_USE_XDBE AND HAVE_XDBE_H)
 
+#######################################################################
+set(NO_PRINT_SUPPORT FALSE)
+if(X11_FOUND AND NOT OPTION_PRINT_SUPPORT)
+   set(NO_PRINT_SUPPORT TRUE)
+endif(X11_FOUND AND NOT OPTION_PRINT_SUPPORT)
+#######################################################################
+
 #######################################################################
 # prior to CMake 3.0 this feature was buggy
 if(NOT CMAKE_VERSION VERSION_LESS 3.0.0)

FL/Fl_Printer.H

@@ -3,7 +3,7 @@
 //
 // Printing support for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 2010-2014 by Bill Spitzak and others.
+// Copyright 2010-2016 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
@@ -23,6 +23,7 @@
 #ifndef Fl_Printer_H
 #define Fl_Printer_H
 
+#include "config.h"
 #include <FL/x.H>
 #include <FL/Fl_Paged_Device.H>
 #include <FL/fl_draw.H>
@@ -191,6 +192,7 @@ public:
   const char *class_name() {return class_id;};
   /** \brief The constructor */
   Fl_Printer(void);
+#ifndef NO_PRINT_SUPPORT
   int start_job(int pagecount, int *frompage = NULL, int *topage = NULL);
   int start_page(void);
   int printable_rect(int *w, int *h);
@@ -207,8 +209,6 @@ public:
   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.
    \{
@@ -233,6 +233,9 @@ public:
   static const char *property_save;
   static const char *property_cancel;
   /** \} */ 
+  /** \brief The destructor */
+  ~Fl_Printer(void);
+
 private:
 #if defined(WIN32) || defined(__APPLE__)
   Fl_System_Printer *printer;
@@ -242,6 +245,7 @@ private:
 #else
   Fl_PostScript_Printer *printer;
 #endif
+#endif // NO_PRINT_SUPPORT
 };
 
 #endif // Fl_Printer_H

configh.cmake.in

@@ -336,6 +336,12 @@
 #cmakedefine01 HAVE_DLFCN_H
 #cmakedefine01 HAVE_DLSYM
 
+/*
+ * Do we want print support?
+ */
+
+#cmakedefine NO_PRINT_SUPPORT 1
+
 /*
  * End of "$Id$".
  */

src/CMakeLists.txt

@@ -46,9 +46,8 @@ set(CPPFILES
   Fl_Paged_Device.cxx
   Fl_Pixmap.cxx
   Fl_Positioner.cxx
-  Fl_PostScript.cxx
-  Fl_Printer.cxx
   Fl_Preferences.cxx
+  Fl_Printer.cxx
   Fl_Progress.cxx
   Fl_Repeat_Button.cxx
   Fl_Return_Button.cxx
@@ -137,13 +136,22 @@ set(CPPFILES
   fl_show_colormap.cxx
   fl_symbols.cxx
   fl_vertex.cxx
-  ps_image.cxx
   screen_xywh.cxx
   fl_utf8.cxx
   fl_encoding_latin1.cxx
   fl_encoding_mac_roman.cxx
 )
 
+if (USE_X11 AND NOT OPTION_PRINT_SUPPORT)
+  set(PSFILES
+  )
+else()
+  set(PSFILES
+    Fl_PostScript.cxx
+    ps_image.cxx
+  )
+endif(USE_X11 AND NOT OPTION_PRINT_SUPPORT)
+
 set(DRIVER_FILES)
 
 if (USE_X11)
@@ -280,7 +288,7 @@ else()
 endif(APPLE AND NOT OPTION_APPLE_X11)
 
 #######################################################################
-FL_ADD_LIBRARY(fltk STATIC "${CPPFILES};${MMFILES};${CFILES};fl_call_main.c")
+FL_ADD_LIBRARY(fltk STATIC "${CPPFILES};${PSFILES};${MMFILES};${CFILES};fl_call_main.c")
 
 if(LIB_dl)
    target_link_libraries(fltk ${LIB_dl})

src/Fl_Printer.cxx

@@ -4,7 +4,7 @@
 // Encompasses platform-specific printing-support code and 
 // PostScript output code for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 2010 by Bill Spitzak and others.
+// Copyright 2010-2016 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
@@ -19,6 +19,15 @@
 
 #include <FL/Fl_Printer.H>
 
+const char *Fl_Printer::class_id = "Fl_Printer";
+
+#ifdef NO_PRINT_SUPPORT
+
+Fl_Printer::Fl_Printer(void) {
+}
+
+#else
+
 #if defined(WIN32) || defined(__APPLE__)
 #elif defined(FL_PORTING)
 #  pragma message "FL_PORTING: implement the printer device specifics"
@@ -69,7 +78,6 @@ const char *Fl_Printer::property_save = "Save";
 /** [this text may be customized at run-time] */
 const char *Fl_Printer::property_cancel = "Cancel";
 
-const char *Fl_Printer::class_id = "Fl_Printer";
 #if defined(__APPLE__) || defined(WIN32) || defined(FL_DOXYGEN)
 const char *Fl_System_Printer::class_id = Fl_Printer::class_id;
 #endif
@@ -207,6 +215,7 @@ Fl_Printer::~Fl_Printer(void)
   delete printer;
 }
 
+#endif // NO_PRINT_SUPPORT
 
 //
 // End of "$Id$".