Adds external editor capability to fluid for all platforms.

Solves STR#3213. [CORRECTED]



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11818 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 63 insertions, 0 deletions

diff --git a/fluid/ExternalCodeEditor_WIN32.h b/fluid/ExternalCodeEditor_WIN32.h
new file mode 100644
index 000000000..43492e632
--- /dev/null
+++ b/fluid/ExternalCodeEditor_WIN32.h
@@ -0,0 +1,63 @@
+//
+// "$Id: ExternalCodeEditor_WIN32.h 10800 2016-07-10 00:00:00Z greg.ercolano $".
+//
+//       External code editor management class for Windows
+//
+//       Handles starting and keeping track of an external text editor,
+//       including process start, temp file creation/removal, bookkeeping, killing..
+//
+#ifndef _EXTCODEEDITOR_H
+#define _EXTCODEEDITOR_H
+
+/* We require at least Windows 2000 (WINVER == 0x0500) for GetFileSizeEx().  */
+/* This must be defined before #include <windows.h> - MinGW doesn't do that. */
+#if !defined(WINVER) || (WINVER < 0x0500)
+# ifdef WINVER
+#  undef WINVER
+# endif
+# define WINVER 0x0500
+#endif
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
+# ifdef _WIN32_WINNT
+#  undef _WIN32_WINNT
+# endif
+# define _WIN32_WINNT 0x0500
+#endif
+
+#include <windows.h>                /* CreateFile().. */
+#include <string.h>                 /* sprintf().. */
+
+class ExternalCodeEditor {
+  PROCESS_INFORMATION pinfo_;       // CreateProcess() handle to running process 
+  FILETIME            file_mtime_;  // last modify time of the file (used to determine if file changed)
+  LARGE_INTEGER       file_size_;   // last file size (used to determine if changed)
+  const char *        filename_;    // tmpfilename editor uses
+protected:
+  void kill_editor();
+  void reap_cleanup();
+  const char *create_tmpdir();
+  const char *tmp_filename();
+  int start_editor(const char *cmd, const char *filename);
+  void set_filename(const char *val);
+public:
+  ExternalCodeEditor();
+  ~ExternalCodeEditor();
+  int is_editing();
+  DWORD reap_editor();
+  const char *filename() { return filename_; }
+  int open_editor(const char *editor_cmd, const char *code);
+  int handle_changes(const char **code, int force=0);
+  int remove_tmpfile();
+  // Public static methods
+  static void start_update_timer();
+  static void stop_update_timer();
+  static const char* tmpdir_name();
+  static void tmpdir_clear();
+  static int editors_open();
+  static void set_update_timer_callback(Fl_Timeout_Handler);
+};
+
+#endif /*_EXTCODEEDITOR_H */
+//
+// End of "$Id: ExternalCodeEditor_WIN32.h 10800 2016-07-10 00:00:00Z greg.ercolano $".
+//