Fix whitespace errors (no code changes)

.github/workflows/build.yml

@@ -49,12 +49,12 @@ jobs:
 
     - name: Install prerequisites
       run: sudo apt-get update -y && sudo apt-get install -y libasound2-dev libglu1-mesa-dev libwayland-dev wayland-protocols libdbus-1-dev libxkbcommon-dev libegl-dev libpangocairo-1.0-0 libopengl-dev libpango1.0-dev libgtk-3-dev
-      
+
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
       # We'll use this as our working directory for all subsequent commands
       run: cmake -E make_directory ${{github.workspace}}/build
-      
+
     - name: Configure CMake
       # Use a bash shell so we can use the same syntax for environment variable
       # access regardless of the host operating system

README.Wayland.txt

@@ -44,7 +44,7 @@ Once after "git clone", create the configure file :
 
 Prepare build with :
    ./configure --enable-wayland [--enable-shared]
-   
+
 Build with :
    make
 
@@ -97,7 +97,7 @@ the common FLTK 1.3 construct :
 will choke at compile time because it exposes X11-specific code to the non-X11, Wayland
 environment. This should be written instead :
   #include <FL/fl_config.h>
-  
+
   #ifdef __APPLE__
      *** macOS-specific code ***
   #elif defined(_WIN32)

README.md

@@ -4,11 +4,11 @@
 
     The Fast Light Tool Kit ("FLTK", pronounced "fulltick") is a
     cross-platform C++ GUI toolkit for UNIX®/Linux® (X11 or
-    Wayland), Microsoft® Windows®, and macOS®. 
-    FLTK provides modern GUI functionality without the bloat and 
-    supports 3D graphics via OpenGL® and its built-in GLUT 
-    emulation. It was originally developed by Mr. Bill Spitzak 
-    and is currently maintained by a small group of developers 
+    Wayland), Microsoft® Windows®, and macOS®.
+    FLTK provides modern GUI functionality without the bloat and
+    supports 3D graphics via OpenGL® and its built-in GLUT
+    emulation. It was originally developed by Mr. Bill Spitzak
+    and is currently maintained by a small group of developers
     across the world with a central repository on GitHub.
 
     For more information see README.txt:

configure.ac

@@ -1001,7 +1001,7 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
 
     AS_IF([test x$enable_wayland = xyes], [
       dnl Prepare for Wayland...
-      
+
       AS_IF([test x$PKGCONFIG = x], [
           dnl pkg-config is not available, issue warning and abort...
           AC_MSG_WARN([--enable-wayland: please install pkg-config.])
@@ -1020,9 +1020,9 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
       enable_pango=yes
       LIBDECORDIR="libdecor/build"
       LDFLAGS="$LDFLAGS -rdynamic -no-pie"
-    
+
       AC_SEARCH_LIBS([dlopen], [dl])
-      
+
       AS_IF([test x$enable_gl != xno], [
           AC_CHECK_HEADER([GL/gl.h], [AC_DEFINE([HAVE_GL])])
           AC_CHECK_HEADER([GL/glu.h], [
@@ -1037,7 +1037,7 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
           GLDEMOS=""
           GLWLDEMO=""
       ])
-      
+
       dnl Check for GTK-3 ...
       gtk_found=no
       CFLAGS="$($PKGCONFIG --cflags gtk+-3.0) $CFLAGS"
@@ -1046,13 +1046,13 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
           LIBS="$LIBS $($PKGCONFIG --libs gtk+-3.0)"
           gtk_found=yes
       ])
-        
+
       dnl Check for the Pango library ...
       pango_found=no
       CFLAGS="$($PKGCONFIG --cflags pangocairo) $CFLAGS"
       CXXFLAGS="$($PKGCONFIG --cflags pangocairo) $CXXFLAGS"
       LIBS="$LIBS $($PKGCONFIG --libs pangocairo)"
- 
+
       AC_CHECK_HEADERS([pango/pangocairo.h], [
           AC_DEFINE([USE_PANGO])
           AC_DEFINE([USE_XFT])
@@ -1265,7 +1265,7 @@ AS_CASE([$host_os_gui], [cygwin* | mingw*], [
     AC_CHECK_HEADER([X11/Xregion.h], [
         AC_DEFINE([HAVE_X11_XREGION_H])
     ], [], [#include <X11/Xlib.h>])
-    
+
     ])
 
     # Make symlinks since UNIX/Linux is case sensitive,

src/CMakeLists.txt

@@ -474,7 +474,7 @@ if (OPTION_USE_WAYLAND)
   if (GTK_FOUND)
     set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHAVE_GTK")
   endif (GTK_FOUND)
-    
+
   list (APPEND CFILES
     xutf8/keysym2Ucs.c
     scandir_posix.c

src/Fl_Device.cxx

@@ -72,7 +72,7 @@
  \li make current another surface, e.g., an Fl_Printer or an Fl_Image_Surface object,  calling set_current() on this object;
  \li draw to that surface;
  \li make the display current again with Fl_Display_Device::display_device()->set_current();  . Don't do any other call to set_current() before this one.
- 
+
  Other scenarios of drawing surface changes should be performed via Fl_Surface_Device::push_current( ) / Fl_Surface_Device::pop_current().
  */
 void Fl_Surface_Device::set_current(void)

src/Fl_Window_Driver.H

@@ -184,13 +184,13 @@ public:
                      int /*dest_x*/, int /*dest_y*/,
                      void (*)(void*, int,int,int,int), void*) { return 0; }
   static inline Fl_Window_Driver* driver(const Fl_Window *win) {return win->pWindowDriver;}
-  
+
   // --- support for menu windows
   // the default implementation of next 2 members is most probably enough
   virtual void reposition_menu_window(int x, int y);
   virtual void menu_window_area(int &X, int &Y, int &W, int &H, int nscreen = -1);
   static Fl_Window *menu_parent();
-  
+
   virtual fl_uintptr_t os_id() { return 0; }
 };
 

src/drivers/Cairo/Fl_Cairo_Graphics_Driver.H

@@ -144,7 +144,7 @@ public:
   void ps_origin(int x, int y);
   void ps_translate(int, int);
   void ps_untranslate();
-  
+
   void draw_cached_pattern_(Fl_Image *img, cairo_pattern_t *pat, int X, int Y, int W, int H, int cx, int cy);
   void draw_image(const uchar *data, int ix, int iy, int iw, int ih, int D, int LD);
   void draw_rgb(Fl_RGB_Image *rgb,int XP, int YP, int WP, int HP, int cx, int cy);
@@ -156,7 +156,7 @@ public:
   void cache(Fl_Pixmap *pxm);
   void draw_pixmap(Fl_Pixmap *rgb,int XP, int YP, int WP, int HP, int cx, int cy);
   void uncache_pixmap(fl_uintptr_t p);
-  
+
   void font(Fl_Font fnum, Fl_Fontsize s);
   Fl_Font font() { return Fl_Graphics_Driver::font(); }
   void draw(const char* s, int nBytes, int x, int y) { draw(s, nBytes, float(x), float(y)); }

src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H

@@ -162,7 +162,7 @@ public:
   //icons
   virtual void icons(const Fl_RGB_Image *icons[], int count);
   NSImage *icon_image;
-  
+
   virtual fl_uintptr_t os_id();
 };
 

src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.H

@@ -26,7 +26,7 @@
 #include <FL/gl.h>
 
 /* Implementation note about OpenGL drawing on the Wayland platform
- 
+
 After eglCreateWindowSurface() with attributes {EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER, EGL_NONE},
 eglQueryContext() reports that EGL_RENDER_BUFFER equals EGL_BACK_BUFFER.
 This experiment suggests that the platform only supports double-buffer drawing.

src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx

@@ -28,7 +28,7 @@
 #include <FL/gl.h>
 
 /* Implementation note about OpenGL drawing on the Wayland platform
- 
+
 After eglCreateWindowSurface() with attributes {EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER, EGL_NONE},
 eglQueryContext() reports that EGL_RENDER_BUFFER equals EGL_BACK_BUFFER.
 This experiment suggests that the platform only supports double-buffer drawing.
@@ -61,22 +61,22 @@ Fl_Wayland_Gl_Window_Driver::Fl_Wayland_Gl_Window_Driver(Fl_Gl_Window *win) : Fl
 
 void Fl_Wayland_Gl_Window_Driver::init() {
   EGLint major, minor;
-  
+
   if (!Fl_Wayland_Screen_Driver::wl_display) Fl::screen_driver()->open_display();
   egl_display = eglGetDisplay((EGLNativeDisplayType) Fl_Wayland_Screen_Driver::wl_display);
   if (egl_display == EGL_NO_DISPLAY) {
     Fl::fatal("Can't create egl display\n");
   }
-  
+
   if (eglInitialize(egl_display, &major, &minor) != EGL_TRUE) {
     Fl::fatal("Can't initialise egl display\n");
   }
   //printf("EGL major: %d, minor %d\n", major, minor);
-  
+
   eglGetConfigs(egl_display, NULL, 0, &configs_count);
   //printf("EGL has %d configs\n", configs_count);
   eglBindAPI(EGL_OPENGL_API);
-  
+
   gl_event_queue = wl_display_create_queue(Fl_Wayland_Screen_Driver::wl_display);
 }
 
@@ -115,7 +115,7 @@ Fl_Gl_Choice *Fl_Wayland_Gl_Window_Driver::find(int m, const int *alistp)
   m |= FL_DOUBLE;
   Fl_Wayland_Gl_Choice *g = (Fl_Wayland_Gl_Choice*)Fl_Gl_Window_Driver::find_begin(m, alistp);
   if (g) return g;
-  
+
   EGLint n;
   EGLint config_attribs[] = {
     EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
@@ -128,11 +128,11 @@ Fl_Gl_Choice *Fl_Wayland_Gl_Window_Driver::find(int m, const int *alistp)
     EGL_STENCIL_SIZE, 0, // set at 15
     EGL_NONE
   };
-  
+
   if (m & FL_DEPTH) config_attribs[11] = 1;
   if (m & FL_MULTISAMPLE) config_attribs[13] = 1;
   if (m & FL_STENCIL) config_attribs[15] = 1;
-  
+
   static EGLConfig *configs = (void**)calloc(configs_count, sizeof(EGLConfig));
   eglChooseConfig(egl_display, config_attribs, configs, configs_count, &n);
   if (n == 0 && (m & FL_MULTISAMPLE)) {
@@ -142,7 +142,7 @@ Fl_Gl_Choice *Fl_Wayland_Gl_Window_Driver::find(int m, const int *alistp)
   if (n == 0) {
     Fl::fatal("failed to choose an EGL config\n");
   }
-  
+
   g = new Fl_Wayland_Gl_Choice(m, alistp, first);
   /*for (int i = 0; i < n; i++) {
     EGLint size;

src/drivers/Wayland/Fl_Wayland_Graphics_Driver.H

@@ -24,7 +24,7 @@
 
 
 /* Implementation note about buffers FLTK uses to support display graphics under Wayland.
- 
+
  Each window is associated to an FLTK-defined object of type struct wld_window
  containing itself an FLTK-defined struct fl_wld_buffer object holding all graphics data.
  Among members of this latter structure are:
@@ -44,7 +44,7 @@
  gives the total buffer size in bytes (thus, data_size / stride gives the buffer height);
  - struct wl_callback *cb
  is used to synchronize drawing with the compositor during progressive drawing.
- 
+
  When a graphics scene is to be committed, the data_size bytes of draw_buffer are copied by memcpy()
  starting at data, and wl_buffer is attached to the wl_surface which is committed for display
  by wl_surface_commit().

src/drivers/Wayland/Fl_Wayland_Screen_Driver.H

@@ -68,7 +68,7 @@ public:
   static bool insertion_point_location(int *px, int *py, int *pwidth, int *pheight);
   int get_mouse_unscaled(int &xx, int &yy);
   void screen_count(int count) {num_screens = count;}
-  
+
   void reset_cursor();
   struct wl_cursor *xc_arrow;
   struct wl_cursor *xc_ns;
@@ -113,7 +113,7 @@ public:
   struct libdecor *libdecor_context;
   struct xdg_wm_base *xdg_wm_base;
   struct zwp_text_input_manager_v3 *text_input_base;
-  
+
   Fl_Wayland_Screen_Driver();
   virtual APP_SCALING_CAPABILITY rescalable() { return PER_SCREEN_APP_SCALING; }
   virtual float scale(int n);

src/drivers/Wayland/Fl_Wayland_Screen_Driver.cxx

@@ -52,16 +52,16 @@ struct pointer_output {
 };
 
 /* Implementation note about support of 3 Wayland compositors: Mutter, Weston, KDE.
- 
+
 - About CSD and SSD :
  * Mutter and Weston use CSD (client-side decoration) which means that libdecor.so draws all window
  titlebars and responds to resize, minimization and maximization events.
  * KDE uses SSD (server-side decoration) which means the OS draws titlebars according to its own rules
  and triggers resize, minimization and maximization events.
- 
+
 - Function registry_handle_global() runs within fl_open_display() and sets public static variable
  Fl_Wayland_Screen_Driver::compositor to either Fl_Wayland_Screen_Driver::MUTTER, ::WESTON, or ::KDE.
- 
+
 - Specific operations for WESTON:
  * When a libdecor-framed window is minimized under Weston, the frame remains on display. To avoid
  that, function libdecor_frame_set_minimized() is modified so it turns off the frame's visibility, with
@@ -82,7 +82,7 @@ struct pointer_output {
  A frame callback is also created by Fl_Wayland_Window_Driver::flush() when a window redraw operation
  is needed. FLTK processes wayland events until the compositor is ready for commit and then commits
  the new window content.
- 
+
  - Support of Fl_Window::border(int) :
  FLTK uses libdecor_frame_set_visibility() to show or hide a toplevel window's frame. This doesn't work
  with KDE which uses Server-Side Decoration. In that case, FLTK hides and re-shows the window to toggle
@@ -91,7 +91,7 @@ struct pointer_output {
 
 
 /* Implementation note about screen-related information
- 
+
  struct wl_output : Wayland-defined, contains info about a screen, one such record for each screen
 
  struct Fl_Wayland_Screen_Driver::output { // FLTK defined
@@ -488,15 +488,15 @@ static void wl_keyboard_keymap(void *data, struct wl_keyboard *wl_keyboard,
 {
   struct seat *seat = (struct seat*)data;
   assert(format == WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1);
-  
+
   char *map_shm = (char*)mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
   assert(map_shm != MAP_FAILED);
-  
+
   struct xkb_keymap *xkb_keymap = xkb_keymap_new_from_string(seat->xkb_context, map_shm,
                                                              XKB_KEYMAP_FORMAT_TEXT_V1, XKB_KEYMAP_COMPILE_NO_FLAGS);
   munmap(map_shm, size);
   close(fd);
-  
+
   struct xkb_state *xkb_state = xkb_state_new(xkb_keymap);
   xkb_keymap_unref(seat->xkb_keymap);
   xkb_state_unref(seat->xkb_state);
@@ -680,7 +680,7 @@ fprintf(stderr, "key %s: sym: %-12s(%d) code:%u fl_win=%p, ", action, buf, sym,
 //fprintf(stderr, "xkb_compose_status=%d ctxt=%p state=%p l=%d[%s]\n", status, seat->xkb_context, seat->xkb_compose_state, Fl::e_length, buf);
   }
   // end of part used only without text-input-unstable-v3
-  
+
   wld_event_time = time;
   int event = (state == WL_KEYBOARD_KEY_STATE_PRESSED ? FL_KEYDOWN : FL_KEYUP);
   // Send event to focus-containing top window as defined by FLTK,
@@ -739,7 +739,7 @@ static const struct wl_keyboard_listener wl_keyboard_listener = {
        .repeat_info = wl_keyboard_repeat_info,
 };
 
-                                                
+
 void text_input_enter(void *data, struct zwp_text_input_v3 *zwp_text_input_v3,
                       struct wl_surface *surface) {
 //puts("text_input_enter");
@@ -823,7 +823,7 @@ static void seat_capabilities(void *data, struct wl_seat *wl_seat, uint32_t capa
     wl_pointer_release(seat->wl_pointer);
     seat->wl_pointer = NULL;
   }
-  
+
   bool have_keyboard = capabilities & WL_SEAT_CAPABILITY_KEYBOARD;
   if (have_keyboard && seat->wl_keyboard == NULL) {
           seat->wl_keyboard = wl_seat_get_keyboard(wl_seat);
@@ -932,16 +932,16 @@ static void registry_handle_global(void *user_data, struct wl_registry *wl_regis
     }
     scr_driver->wl_compositor = (struct wl_compositor*)wl_registry_bind(wl_registry,
            id, &wl_compositor_interface, 4);
-    
+
   } else if (strcmp(interface, "wl_subcompositor") == 0) {
     scr_driver->wl_subcompositor = (struct wl_subcompositor*)wl_registry_bind(wl_registry,
-           id, &wl_subcompositor_interface, 1);    
-    
+           id, &wl_subcompositor_interface, 1);
+
   } else if (strcmp(interface, "wl_shm") == 0) {
     scr_driver->wl_shm = (struct wl_shm*)wl_registry_bind(wl_registry,
             id, &wl_shm_interface, 1);
     wl_shm_add_listener(scr_driver->wl_shm, &shm_listener, NULL);
-    
+
   } else if (strcmp(interface, "wl_seat") == 0) {
     if (version < 3) {
       Fl::fatal("%s version 3 required but only version %i is available\n", interface, version);
@@ -965,7 +965,7 @@ static void registry_handle_global(void *user_data, struct wl_registry *wl_regis
       scr_driver->seat->data_device = wl_data_device_manager_get_data_device(scr_driver->seat->data_device_manager, scr_driver->seat->wl_seat);
       wl_data_device_add_listener(scr_driver->seat->data_device, Fl_Wayland_Screen_Driver::p_data_device_listener, NULL);
     }
-    
+
   } else if (strcmp(interface, wl_data_device_manager_interface.name) == 0) {
     if (!scr_driver->seat) scr_driver->seat = (struct seat*)calloc(1, sizeof(struct seat));
     scr_driver->seat->data_device_manager = (struct wl_data_device_manager*)wl_registry_bind(wl_registry, id, &wl_data_device_manager_interface, 3);
@@ -974,7 +974,7 @@ static void registry_handle_global(void *user_data, struct wl_registry *wl_regis
       wl_data_device_add_listener(scr_driver->seat->data_device, Fl_Wayland_Screen_Driver::p_data_device_listener, NULL);
     }
 //fprintf(stderr, "registry_handle_global: %s\n", interface);
-    
+
   } else if (strcmp(interface, "wl_output") == 0) {
     if (version < 2) {
       Fl::fatal("%s version 3 required but only version %i is available\n", interface, version);
@@ -990,7 +990,7 @@ static void registry_handle_global(void *user_data, struct wl_registry *wl_regis
     wl_list_insert(&(scr_driver->outputs), &output->link);
     scr_driver->screen_count( wl_list_length(&(scr_driver->outputs)) );
 //fprintf(stderr, "wl_output: id=%d wl_output=%p screen_count()=%d\n", id, output->wl_output, Fl::screen_count());
-    
+
   } else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
 //fprintf(stderr, "registry_handle_global interface=%s\n", interface);
     scr_driver->xdg_wm_base = (struct xdg_wm_base *)wl_registry_bind(wl_registry, id, &xdg_wm_base_interface, 1);
@@ -1061,7 +1061,7 @@ Fl_Wayland_Screen_Driver::Fl_Wayland_Screen_Driver() : Fl_Screen_Driver() {
 
 void Fl_Wayland_Screen_Driver::open_display_platform() {
   struct wl_registry *wl_registry;
-  
+
   static bool beenHereDoneThat = false;
   if (beenHereDoneThat)
     return;

src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx

@@ -388,7 +388,7 @@ void Fl_Wayland_Window_Driver::make_current() {
     fl_alert(err_message);
     Fl::fatal(err_message);
   }
-  
+
   struct wld_window *window = fl_xid(pWindow);
   float scale = Fl::screen_scale(pWindow->screen_num()) * window->scale;
   if (window && window->buffer) {
@@ -444,7 +444,7 @@ void Fl_Wayland_Window_Driver::flush() {
   }
   struct wld_window *window = fl_xid(pWindow);
   if (!window || !window->configured_width) return;
-  
+
   Fl_X *i = Fl_X::i(pWindow);
   Fl_Region r = i->region;
   float f = Fl::screen_scale(pWindow->screen_num());
@@ -466,7 +466,7 @@ void Fl_Wayland_Window_Driver::flush() {
   Fl_Wayland_Window_Driver::in_flush = true;
   Fl_Window_Driver::flush();
   Fl_Wayland_Window_Driver::in_flush = false;
-  
+
   wl_surface_frame(window->wl_surface);
   Fl_Wayland_Graphics_Driver::buffer_commit(window);
 }
@@ -769,7 +769,7 @@ static void handle_configure(struct libdecor_frame *frame,
   float f = Fl::screen_scale(window->fl_win->screen_num());
 
   if (!window->xdg_surface) window->xdg_surface = libdecor_frame_get_xdg_surface(frame);
-    
+
   if (window->fl_win->fullscreen_active()) {
     libdecor_frame_set_fullscreen(window->frame, NULL);
   } else if (driver->show_iconic()) {
@@ -795,17 +795,17 @@ static void handle_configure(struct libdecor_frame *frame,
       }
     } else { width = height = 0; }
   }
-    
+
   if (width == 0) {
     width = window->floating_width;
     height = window->floating_height;
     //fprintf(stderr,"handle_configure: using floating %dx%d\n",width,height);
   }
-  
+
   driver->in_handle_configure = true;
   window->fl_win->resize(0, 0, ceil(width / f), ceil(height / f));
   driver->in_handle_configure = false;
-  
+
   if (ceil(width / f) != window->configured_width || ceil(height / f) != window->configured_height) {
     if (window->buffer) {
       Fl_Wayland_Graphics_Driver::buffer_release(window);
@@ -899,7 +899,7 @@ static void xdg_surface_configure(void *data, struct xdg_surface *xdg_surface, u
   struct wld_window *window = (struct wld_window*)data;
   xdg_surface_ack_configure(xdg_surface, serial);
 //fprintf(stderr, "xdg_surface_configure: surface=%p\n", window->wl_surface);
-  
+
   if (window->fl_win->w() != window->configured_width || window->fl_win->h() != window->configured_height) {
     if (window->buffer) {
       Fl_Wayland_Graphics_Driver::buffer_release(window);
@@ -1034,7 +1034,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
   struct wld_window *new_window;
   Fl_Wayland_Screen_Driver::output *output;
   wait_for_expose_value = 1;
-  
+
   if (pWindow->parent() && !pWindow->window()->shown()) return NULL;
 
   new_window = (struct wld_window *)calloc(1, sizeof *new_window);
@@ -1049,7 +1049,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
   new_window->wl_surface = wl_compositor_create_surface(scr_driver->wl_compositor);
   //Fl::warning("makeWindow:%p wayland-scale=%d user-scale=%.2f\n", pWindow, new_window->scale, Fl::screen_scale(0));
   wl_surface_add_listener(new_window->wl_surface, &surface_listener, new_window);
-  
+
   if (pWindow->user_data() == &Fl_Screen_Driver::transient_scale_display && Fl::first_window()) {
   // put transient scale win at center of top window by making it a child of top
     int center_x, center_y;
@@ -1059,7 +1059,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
       pWindow->position(center_x - pWindow->w()/2 ,  center_y - pWindow->h()/2);
     }
   }
-  
+
   if (pWindow->menu_window() || pWindow->tooltip_window()) { // a menu window or tooltip
     new_window->kind = POPUP;
     new_window->xdg_surface = xdg_wm_base_get_xdg_surface(scr_driver->xdg_wm_base, new_window->wl_surface);
@@ -1112,7 +1112,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
     float f = Fl::screen_scale(pWindow->screen_num());
     new_window->floating_width = pWindow->w() * f;
     new_window->floating_height = pWindow->h() * f;
-    
+
   } else if (pWindow->parent()) { // for subwindows (GL or non-GL)
     new_window->kind = SUBWINDOW;
     struct wld_window *parent = fl_xid(pWindow->window());
@@ -1140,7 +1140,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
     wl_surface_commit(new_window->wl_surface);
     pWindow->border(0);
   }
-    
+
   Fl_Window *old_first = Fl::first_window();
   Window first_xid = (old_first ? fl_xid(old_first) : NULL);
   Fl_X *xp = new Fl_X;
@@ -1159,7 +1159,7 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
     xp->next = NULL;
     Fl_X::first = xp;
   }
-  
+
   if (pWindow->modal() || pWindow->non_modal()) {
     if (pWindow->modal()) Fl::modal_ = pWindow;
     if (new_window->kind == DECORATED && first_xid && first_xid->kind == DECORATED) {
@@ -1170,14 +1170,14 @@ Fl_X *Fl_Wayland_Window_Driver::makeWindow()
                                                           top_dr->xdg_toplevel());
     }
   }
-  
+
   size_range();
   pWindow->set_visible();
   int old_event = Fl::e_number;
   pWindow->handle(Fl::e_number = FL_SHOW); // get child windows to appear
   Fl::e_number = old_event;
   pWindow->redraw();
-  
+
   return xp;
 }
 
@@ -1462,7 +1462,7 @@ void Fl_Wayland_Window_Driver::resize(int X, int Y, int W, int H) {
       x(0); y(0);
     }
   }
-    
+
   if (shown()) {
     struct wld_window *fl_win = fl_xid(pWindow);
     float f = Fl::screen_scale(pWindow->screen_num());
@@ -1521,7 +1521,7 @@ void Fl_Wayland_Window_Driver::reposition_menu_window(int x, int y) {
     y_offset = y-1;
     y = 1;
   }
-  
+
   //printf("should move menuwindow to %d y_offset=%d y=%d\n", true_y, y_offset, pWindow->y());
   struct xdg_popup *old_popup = xid_menu->xdg_popup;
   struct xdg_surface *old_xdg = xid_menu->xdg_surface;

src/drivers/Wayland/fl_wayland_clipboard_dnd.cxx

@@ -144,7 +144,7 @@ static void data_source_handle_action(void *data, struct wl_data_source *source,
     break;
   }
 }
-  
+
 static void data_source_handle_dnd_drop_performed(void *data, struct wl_data_source *source) {
   //printf("Drop performed\n");
 }

src/drivers/WinAPI/Fl_WinAPI_Gl_Window_Driver.H

@@ -24,7 +24,7 @@
 #include <FL/gl.h>
 
 /* Implementation note about OpenGL drawing on the Wayland platform
- 
+
 After eglCreateWindowSurface() with attributes {EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER, EGL_NONE},
 eglQueryContext() reports that EGL_RENDER_BUFFER equals EGL_BACK_BUFFER.
 This experiment suggests that the platform only supports double-buffer drawing.

src/fl_set_font.cxx

@@ -34,7 +34,7 @@ static int table_size;
  \param name Name of the font to assign. The string pointer is simply stored,
  the string is not copied, so the string must be in static memory. The exact name to be used
  depends on the platform :
- 
+
  \li Windows, X11, Xft: use the family name prefixed by one character to indicate the desired font variant.
  Characters <tt>' ', 'I', 'B', 'P' </tt>denote plain, italic, bold, and bold-italic variants, respectively. For example,
  string \c "IGabriola" is to be used to denote the <tt>"Gabriola italic"</tt> font. The \c "Oblique" suffix,