Remove FLTK port.

It provides no value over the native GTK and Cocoa ports.

CMakeLists.txt

@@ -20,7 +20,7 @@ set(solvespace_VERSION_MAJOR 2)
 set(solvespace_VERSION_MINOR 1)
 
 if(NOT WIN32)
-    set(GUI gtk2 CACHE STRING "GUI toolkit to use (one of: fltk gtk2 gtk3)")
+    set(GUI gtk2 CACHE STRING "GUI toolkit to use (one of: gtk2 gtk3)")
 endif()
 
 # compiler
@@ -76,17 +76,11 @@ elseif(APPLE)
     find_package(PNG REQUIRED)
     find_library(APPKIT_LIBRARY AppKit REQUIRED)
 else() # Linux and compatible systems
-    find_package(PNG REQUIRED)
     find_package(SpaceWare)
 
-    if(GUI STREQUAL "fltk")
-        # Find the packages the old-fashioned way. Doesn't require
-        # the system to follow freedesktop standards.
-        find_package(FLTK REQUIRED)
-        CHECK_INCLUDE_FILE("fontconfig/fontconfig.h" HAVE_FONTCONFIG)
-    elseif(GUI STREQUAL "gtk3" OR GUI STREQUAL "gtk2")
     # Use freedesktop's pkg-config to locate everything.
     find_package(PkgConfig REQUIRED)
+    pkg_check_modules(PNG REQUIRED libpng)
     pkg_check_modules(FONTCONFIG REQUIRED fontconfig)
     pkg_check_modules(JSONC REQUIRED json-c)
     pkg_check_modules(GLEW REQUIRED glew)
@@ -95,10 +89,9 @@ else() # Linux and compatible systems
     if(GUI STREQUAL "gtk3")
         set(HAVE_GTK3 TRUE)
         pkg_check_modules(GTKMM REQUIRED gtkmm-3.0 pangomm-1.4 x11)
-        else()
+    elseif(GUI STREQUAL "gtk2")
         set(HAVE_GTK2 TRUE)
         pkg_check_modules(GTKMM REQUIRED gtkmm-2.4 pangomm-1.4 x11)
-        endif()
     else()
         message(FATAL_ERROR "GUI unrecognized: ${GUI}")
     endif()

src/CMakeLists.txt

@@ -29,7 +29,6 @@ if(SPACEWARE_FOUND)
 endif()
 
 set(HAVE_SPACEWARE ${SPACEWARE_FOUND})
-set(HAVE_FLTK ${FLTK_FOUND})
 set(HAVE_GTK ${GTKMM_FOUND})
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/config.h.in"
                "${CMAKE_CURRENT_BINARY_DIR}/config.h")
@@ -153,15 +152,6 @@ elseif(APPLE)
 
     set(platform_LIBRARIES
         ${APPKIT_LIBRARY})
-elseif(HAVE_FLTK)
-    include_directories(${FLTK_INCLUDE_DIR})
-
-    set(platform_SOURCES
-        fltk/fltkmain.cpp)
-
-    set(platform_LIBRARIES
-        ${CMAKE_DL_LIBS}
-        ${FLTK_LIBRARIES})
 elseif(HAVE_GTK)
     include_directories(
         ${GTKMM_INCLUDE_DIRS}

src/config.h.in

@@ -13,13 +13,4 @@
 #cmakedefine HAVE_GTK2
 #cmakedefine HAVE_GTK3
 
-#cmakedefine HAVE_FLTK
-
-/* Only relevant for FLTK port. */
-#ifdef HAVE_FLTK
-#define HAVE_FLTK_FULLSCREEN
-#endif
-
-#cmakedefine HAVE_FONTCONFIG
-
 #endif

src/graphicswin.cpp

@@ -79,7 +79,7 @@ const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
 { 1, "Show Snap &Grid",             MNU_SHOW_GRID,      '>',     IC, mView },
 { 1, "Use &Perspective Projection", MNU_PERSPECTIVE_PROJ,'`',    IC, mView },
 { 1,  NULL,                         0,                  0,       IN, NULL  },
-#if defined(HAVE_FLTK) || defined(__APPLE__)
+#if defined(__APPLE__)
 { 1, "Show Menu &Bar",              MNU_SHOW_MENU_BAR,  C|F(12), IC, mView },
 #endif
 { 1, "Show &Toolbar",               MNU_SHOW_TOOLBAR,   0,       IC, mView },
@@ -87,7 +87,7 @@ const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
 { 1,  NULL,                         0,                  0,       IN, NULL  },
 { 1, "Dimensions in &Inches",       MNU_UNITS_INCHES,   0,       IR, mView },
 { 1, "Dimensions in &Millimeters",  MNU_UNITS_MM,       0,       IR, mView },
-#if defined(HAVE_FLTK_FULLSCREEN) || defined(HAVE_GTK) || defined(__APPLE__)
+#if defined(HAVE_GTK) || defined(__APPLE__)
 { 1,  NULL,                         0,                  0,       IN, NULL  },
 { 1, "&Full Screen",                MNU_FULL_SCREEN,    C|F(11), IC, mView },
 #endif
@@ -628,13 +628,13 @@ void GraphicsWindow::EnsureValidActives(void) {
     ShowTextWindow(SS.GW.showTextWindow);
     CheckMenuById(MNU_SHOW_TEXT_WND, SS.GW.showTextWindow);
 
-#if defined(HAVE_FLTK) || defined(__APPLE__)
+#if defined(__APPLE__)
     CheckMenuById(MNU_SHOW_MENU_BAR, MenuBarIsVisible());
 #endif
     CheckMenuById(MNU_SHOW_TOOLBAR, SS.showToolbar);
     CheckMenuById(MNU_PERSPECTIVE_PROJ, SS.usePerspectiveProj);
     CheckMenuById(MNU_SHOW_GRID, SS.GW.showSnapGrid);
-#if defined(HAVE_FLTK_FULLSCREEN) || defined(HAVE_GTK) || defined(__APPLE__)
+#if defined(HAVE_GTK) || defined(__APPLE__)
     CheckMenuById(MNU_FULL_SCREEN, FullScreenIsActive());
 #endif
 

src/solvespace.h

@@ -134,15 +134,7 @@ void RefreshRecentMenus(void);
 #define SAVE_CANCEL  (0)
 int SaveFileYesNoCancel(void);
 
-#if defined(HAVE_FLTK)
+#if defined(HAVE_GTK)
-    // Selection pattern format for FLTK's file chooser classes:
-    //   "PNG File\t*.png\n"
-    //   "JPEG File\t*.{jpg,jpeg}\n"
-    //   "All Files\t*"
-#   define PAT1(desc,e1)    desc "\t*." e1 "\n"
-#   define PAT2(desc,e1,e2) desc "\t*.{" e1 "," e2 "}\n"
-#   define ENDPAT "All Files\t*"
-#elif defined(HAVE_GTK)
     // Selection pattern format to be parsed by GTK3 glue code:
     //   "PNG File\t*.png\n"
     //   "JPEG File\t*.jpg\t*.jpeg\n"