Make possible to use PDCursesMod on every system

- PDCursesMod is forced on Windows as USE_CURSES is
  always enabled since there is no other console code.
- PDCursesMod is used on macOS if USE_CURSES is enabled,
  it couldn't be enabled before as system ncurses isn't supported.
- PDCursesMod is used on Linux if USE_CURSES is enabled,
  but USE_CURSES_NCURSES is disabled.
- ncurses is used on Linux if both USE_CURSES and
  USE_CURSES_NCURSES are enabled.

Co-authored-by: slipher <slipher@protonmail.com>

Author: illwieckz

CMakeLists.txt

@@ -141,12 +141,15 @@ if(NOT DAEMON_EXTERNAL_APP)
 
     set(NACL_RUNTIME_PATH "" CACHE STRING "Directory containing the NaCl binaries")
 
-    # Not supported on mac because the included version is too old
-    if(APPLE)
-        set(USE_CURSES OFF)
-    elseif(WIN32)
+    if (WIN32)
+        # The alternative code is based on non-curses unix terminal functions.
         set(USE_CURSES ON)
     else()
+        if (NOT APPLE)
+            # Not supported on macOS because the included version is too old.
+            option(USE_CURSES_NCURSES "Use ncurses instead of PDCursesMod" ON)
+        endif()
+
         option(USE_CURSES "Enable fancy colors in terminal's output" ON)
     endif()
 
@@ -657,20 +660,24 @@ endif()
 # Curses, pdcurses on Windows and ncursesw on Unix
 if (BUILD_CLIENT OR BUILD_TTY_CLIENT OR BUILD_SERVER OR BUILD_DUMMY_APP)
     if (USE_CURSES)
-        if (WIN32)
-            set(LIBS_ENGINE_BASE ${LIBS_ENGINE_BASE} gdi32 comdlg32)
+        if (USE_CURSES_NCURSES)
+            # Tells FindCurses that ncurses is required.
+            set(CURSES_NEED_NCURSES 1)
+
+            add_definitions(-DUSE_CURSES -DUSE_CURSES_NCURSES)
+            find_package(CursesW REQUIRED)
+            set(LIBS_ENGINE_BASE ${LIBS_ENGINE_BASE} ${CURSESW_LIBRARIES})
+            include_directories(${CURSESW_INCLUDE_DIR})
+        else ()
+            if (WIN32)
+                set(LIBS_ENGINE_BASE ${LIBS_ENGINE_BASE} gdi32 comdlg32)
+            endif()
 
             add_definitions(-DPDC_WIDE -DPDC_FORCE_UTF8 -DPDC_RGB -DUSE_CURSES)
             add_library(srclibs-pdcurses EXCLUDE_FROM_ALL ${PDCURSESLIST})
             set_target_properties(srclibs-pdcurses PROPERTIES POSITION_INDEPENDENT_CODE 1 FOLDER "libs")
             set(LIBS_ENGINE_BASE ${LIBS_ENGINE_BASE} srclibs-pdcurses)
             include_directories(${LIB_DIR}/pdcursesmod)
-        else ()
-            add_definitions(-DUSE_CURSES)
-            set(CURSES_NEED_NCURSES 1) # Tells FindCurses that ncurses is required
-            find_package(CursesW REQUIRED)
-            set(LIBS_ENGINE_BASE ${LIBS_ENGINE_BASE} ${CURSESW_LIBRARIES})
-            include_directories(${CURSESW_INCLUDE_DIR})
         endif()
     endif()
 endif()

src/engine/sys/con_curses.cpp

@@ -103,12 +103,12 @@ static void CON_SetColor( WINDOW *win, const Color::Color& color )
 static void CON_UpdateCursor()
 {
 // pdcurses uses a different mechanism to move the cursor than ncurses
-#ifdef _WIN32
-	move( LINES - 1, Color::StrlenNocolor( PROMPT ) + 8 + input_field.GetViewCursorPos() );
-	wnoutrefresh( stdscr );
-#else
+#ifdef USE_CURSES_NCURSES
 	wmove( inputwin, 0, input_field.GetViewCursorPos() );
 	wnoutrefresh( inputwin );
+#else
+	move( LINES - 1, Color::StrlenNocolor( PROMPT ) + 8 + input_field.GetViewCursorPos() );
+	wnoutrefresh( stdscr );
 #endif
 }
 
@@ -228,7 +228,12 @@ static void CON_Redraw()
 		{
 			return;
 		}
-		resizeterm( winsz.ws_row, winsz.ws_col );
+
+		#if defined(USE_CURSES_NCURSES)
+			resizeterm( winsz.ws_row, winsz.ws_col );
+		#else
+			resize_term( winsz.ws_row, winsz.ws_col );
+		#endif
 #endif
 
 		delwin( logwin );

srclibs.cmake

@@ -99,16 +99,34 @@ set(PDCURSESLIST
     ${LIB_DIR}/pdcursesmod/pdcurses/touch.c
     ${LIB_DIR}/pdcursesmod/pdcurses/util.c
     ${LIB_DIR}/pdcursesmod/pdcurses/window.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcclip.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcdisp.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcgetsc.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdckbd.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcscrn.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcsetsc.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcutil.c
-    ${LIB_DIR}/pdcursesmod/wingui/pdcwin.h
 )
 
+if (WIN32)
+	set(PDCURSESLIST
+		${PDCURSESLIST}
+		${LIB_DIR}/pdcursesmod/wingui/pdcclip.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcdisp.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcgetsc.c
+		${LIB_DIR}/pdcursesmod/wingui/pdckbd.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcscrn.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcsetsc.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcutil.c
+		${LIB_DIR}/pdcursesmod/wingui/pdcwin.h
+	)
+else()
+	set(PDCURSESLIST
+		${PDCURSESLIST}
+		${LIB_DIR}/pdcursesmod/vt/pdcclip.c
+		${LIB_DIR}/pdcursesmod/vt/pdcdisp.c
+		${LIB_DIR}/pdcursesmod/vt/pdcgetsc.c
+		${LIB_DIR}/pdcursesmod/vt/pdckbd.c
+		${LIB_DIR}/pdcursesmod/vt/pdcscrn.c
+		${LIB_DIR}/pdcursesmod/vt/pdcsetsc.c
+		${LIB_DIR}/pdcursesmod/vt/pdcutil.c
+		${LIB_DIR}/pdcursesmod/vt/pdcvt.h
+	)
+endif()
+
 set(TINYFORMATLIST
     ${LIB_DIR}/tinyformat/tinyformat.h
 )