1 files changed, 278 insertions, 0 deletions
diff --git a/src/editor/edit-impl.h b/src/editor/edit-impl.h
new file mode 100644
index 0000000..3d00545
--- /dev/null
+++ b/src/editor/edit-impl.h
@@ -0,0 +1,278 @@
+/*
+   editor private API
+ */
+
+/** \file edit-impl.h
+ *  \brief Header: editor low level data handling and cursor fundamentals
+ *  \author Paul Sheer
+ *  \date 1996, 1997
+ */
+
+#ifndef MC__EDIT_IMPL_H
+#define MC__EDIT_IMPL_H
+
+#include <stdio.h>
+
+#include "lib/search.h"         /* mc_search_type_t */
+#include "lib/widget.h"         /* cb_ret_t */
+#include "lib/vfs/vfs.h"        /* vfs_path_t */
+
+#include "src/setup.h"          /* option_tab_spacing */
+
+#include "edit.h"
+
+/*** typedefs(not structures) and defined constants **********************************************/
+
+#define REDRAW_LINE          (1 << 0)
+#define REDRAW_LINE_ABOVE    (1 << 1)
+#define REDRAW_LINE_BELOW    (1 << 2)
+#define REDRAW_AFTER_CURSOR  (1 << 3)
+#define REDRAW_BEFORE_CURSOR (1 << 4)
+#define REDRAW_PAGE          (1 << 5)
+#define REDRAW_IN_BOUNDS     (1 << 6)
+#define REDRAW_CHAR_ONLY     (1 << 7)
+#define REDRAW_COMPLETELY    (1 << 8)
+
+#define EDIT_TEXT_HORIZONTAL_OFFSET 0
+#define EDIT_TEXT_VERTICAL_OFFSET   0
+
+#define EDIT_RIGHT_EXTREME 0
+#define EDIT_LEFT_EXTREME 0
+#define EDIT_TOP_EXTREME 0
+#define EDIT_BOTTOM_EXTREME 0
+
+/* Initial size of the undo stack, in bytes */
+#define START_STACK_SIZE 32
+
+/* Some codes that may be pushed onto or returned from the undo stack */
+#define CURS_LEFT       601
+#define CURS_RIGHT      602
+#define DELCHAR         603
+#define BACKSPACE       604
+#define STACK_BOTTOM    605
+#define CURS_LEFT_LOTS  606
+#define CURS_RIGHT_LOTS 607
+#define COLUMN_ON       608
+#define COLUMN_OFF      609
+#define DELCHAR_BR      610
+#define BACKSPACE_BR    611
+#define MARK_1          1000
+#define MARK_2          500000000
+#define MARK_CURS       1000000000
+#define KEY_PRESS       1500000000
+
+/* Tabs spaces: (sofar only HALF_TAB_SIZE is used: */
+#define TAB_SIZE      option_tab_spacing
+#define HALF_TAB_SIZE ((int) option_tab_spacing / 2)
+
+/* max count stack files */
+#define MAX_HISTORY_MOVETO     50
+#define LINE_STATE_WIDTH 8
+
+#define LB_NAMES (LB_MAC + 1)
+
+#define get_sys_error(s) (s)
+
+#define edit_error_dialog(h,s) query_dialog (h, s, D_ERROR, 1, _("&Dismiss"))
+#define edit_query_dialog(h,s) query_dialog (h, s, D_NORMAL, 1, _("&Dismiss"))
+#define edit_query_dialog2(h,t,a,b) query_dialog (h, t, D_NORMAL, 2, a, b)
+#define edit_query_dialog3(h,t,a,b,c) query_dialog (h, t, D_NORMAL, 3, a, b, c)
+
+/*** enums ***************************************************************************************/
+
+/* line breaks */
+typedef enum
+{
+    LB_ASIS = 0,
+    LB_UNIX,
+    LB_WIN,
+    LB_MAC
+} LineBreaks;
+
+typedef enum
+{
+    EDIT_QUICK_SAVE = 0,
+    EDIT_SAFE_SAVE,
+    EDIT_DO_BACKUP
+} edit_save_mode_t;
+
+/*** structures declarations (and typedefs of structures)*****************************************/
+
+/* search/replace options */
+typedef struct edit_search_options_t
+{
+    mc_search_type_t type;
+    gboolean case_sens;
+    gboolean backwards;
+    gboolean only_in_selection;
+    gboolean whole_words;
+    gboolean all_codepages;
+} edit_search_options_t;
+
+typedef struct edit_stack_type
+{
+    long line;
+    vfs_path_t *filename_vpath;
+} edit_stack_type;
+
+/*** global variables defined in .c file *********************************************************/
+
+extern const char VERTICAL_MAGIC[5];
+/* if enable_show_tabs_tws == TRUE then use visible_tab visible_tws */
+extern gboolean enable_show_tabs_tws;
+
+extern edit_search_options_t edit_search_options;
+
+extern unsigned int edit_stack_iterator;
+extern edit_stack_type edit_history_moveto[MAX_HISTORY_MOVETO];
+
+extern int max_undo;
+extern gboolean auto_syntax;
+
+extern gboolean search_create_bookmark;
+
+extern char *edit_window_state_char;
+extern char *edit_window_close_char;
+
+/*** declarations of public functions ************************************************************/
+
+gboolean edit_add_window (WDialog * h, const WRect * r, const vfs_path_t * f, long fline);
+WEdit *edit_find_editor (const WDialog * h);
+gboolean edit_widget_is_editor (const Widget * w);
+gboolean edit_drop_hotkey_menu (WDialog * h, int key);
+void edit_menu_cmd (WDialog * h);
+void user_menu (WEdit * edit, const char *menu_file, int selected_entry);
+void edit_init_menu (WMenuBar * menubar);
+void edit_save_mode_cmd (void);
+off_t edit_move_forward3 (const WEdit * edit, off_t current, long cols, off_t upto);
+void edit_scroll_screen_over_cursor (WEdit * edit);
+void edit_render_keypress (WEdit * edit);
+void edit_scroll_upward (WEdit * edit, long i);
+void edit_scroll_downward (WEdit * edit, long i);
+void edit_scroll_right (WEdit * edit, long i);
+void edit_scroll_left (WEdit * edit, long i);
+void edit_move_up (WEdit * edit, long i, gboolean do_scroll);
+void edit_move_down (WEdit * edit, long i, gboolean do_scroll);
+void edit_move_to_prev_col (WEdit * edit, off_t p);
+long edit_get_col (const WEdit * edit);
+void edit_update_curs_row (WEdit * edit);
+void edit_update_curs_col (WEdit * edit);
+void edit_find_bracket (WEdit * edit);
+gboolean edit_reload_line (WEdit * edit, const vfs_path_t * filename_vpath, long line);
+void edit_set_codeset (WEdit * edit);
+
+void edit_block_copy_cmd (WEdit * edit);
+void edit_block_move_cmd (WEdit * edit);
+int edit_block_delete_cmd (WEdit * edit);
+void edit_delete_line (WEdit * edit);
+
+int edit_delete (WEdit * edit, gboolean byte_delete);
+int edit_backspace (WEdit * edit, gboolean byte_delete);
+void edit_insert (WEdit * edit, int c);
+void edit_insert_over (WEdit * edit);
+void edit_cursor_move (WEdit * edit, off_t increment);
+void edit_push_undo_action (WEdit * edit, long c);
+void edit_push_redo_action (WEdit * edit, long c);
+void edit_push_key_press (WEdit * edit);
+void edit_insert_ahead (WEdit * edit, int c);
+off_t edit_write_stream (WEdit * edit, FILE * f);
+char *edit_get_write_filter (const vfs_path_t * write_name_vpath,
+                             const vfs_path_t * filename_vpath);
+gboolean edit_save_confirm_cmd (WEdit * edit);
+gboolean edit_save_as_cmd (WEdit * edit);
+WEdit *edit_init (WEdit * edit, const WRect * r, const vfs_path_t * filename_vpath, long line);
+gboolean edit_clean (WEdit * edit);
+gboolean edit_ok_to_exit (WEdit * edit);
+gboolean edit_load_cmd (WDialog * h);
+gboolean edit_load_file_from_filename (WDialog * h, const vfs_path_t * vpath, long line);
+gboolean edit_load_file_from_history (WDialog * h);
+gboolean edit_load_syntax_file (WDialog * h);
+gboolean edit_load_menu_file (WDialog * h);
+gboolean edit_close_cmd (WEdit * edit);
+void edit_mark_cmd (WEdit * edit, gboolean unmark);
+void edit_mark_current_word_cmd (WEdit * edit);
+void edit_mark_current_line_cmd (WEdit * edit);
+void edit_set_markers (WEdit * edit, off_t m1, off_t m2, long c1, long c2);
+void edit_push_markers (WEdit * edit);
+
+gboolean edit_save_block (WEdit * edit, const char *filename, off_t start, off_t finish);
+gboolean edit_save_block_cmd (WEdit * edit);
+gboolean edit_insert_file_cmd (WEdit * edit);
+
+off_t edit_insert_file (WEdit * edit, const vfs_path_t * filename_vpath);
+gboolean edit_load_back_cmd (WEdit * edit);
+gboolean edit_load_forward_cmd (WEdit * edit);
+void edit_block_process_cmd (WEdit * edit, int macro_number);
+void edit_refresh_cmd (void);
+void edit_syntax_onoff_cmd (WDialog * h);
+void edit_show_tabs_tws_cmd (WDialog * h);
+void edit_show_margin_cmd (WDialog * h);
+void edit_show_numbers_cmd (WDialog * h);
+void edit_date_cmd (WEdit * edit);
+void edit_goto_cmd (WEdit * edit);
+gboolean eval_marks (WEdit * edit, off_t * start_mark, off_t * end_mark);
+void edit_status (WEdit * edit, gboolean active);
+void edit_execute_key_command (WEdit * edit, long command, int char_for_insertion);
+void edit_update_screen (WEdit * edit);
+void edit_save_size (WEdit * edit);
+gboolean edit_handle_move_resize (WEdit * edit, long command);
+void edit_toggle_fullscreen (WEdit * edit);
+void edit_move_to_line (WEdit * e, long line);
+void edit_move_display (WEdit * e, long line);
+void edit_word_wrap (WEdit * edit);
+int edit_sort_cmd (WEdit * edit);
+int edit_ext_cmd (WEdit * edit);
+
+gboolean edit_copy_to_X_buf_cmd (WEdit * edit);
+gboolean edit_cut_to_X_buf_cmd (WEdit * edit);
+gboolean edit_paste_from_X_buf_cmd (WEdit * edit);
+
+void edit_select_codepage_cmd (WEdit * edit);
+void edit_insert_literal_cmd (WEdit * edit);
+
+void edit_paste_from_history (WEdit * edit);
+
+void edit_set_filename (WEdit * edit, const vfs_path_t * name_vpath);
+
+void edit_load_syntax (WEdit * edit, GPtrArray * pnames, const char *type);
+void edit_free_syntax_rules (WEdit * edit);
+int edit_get_syntax_color (WEdit * edit, off_t byte_index);
+void edit_syntax_dialog (WEdit * edit);
+
+void book_mark_insert (WEdit * edit, long line, int c);
+gboolean book_mark_query_color (WEdit * edit, long line, int c);
+struct edit_book_mark_t *book_mark_find (WEdit * edit, long line);
+gboolean book_mark_clear (WEdit * edit, long line, int c);
+void book_mark_flush (WEdit * edit, int c);
+void book_mark_inc (WEdit * edit, long line);
+void book_mark_dec (WEdit * edit, long line);
+void book_mark_serialize (WEdit * edit, int color);
+void book_mark_restore (WEdit * edit, int color);
+
+gboolean edit_line_is_blank (WEdit * edit, long line);
+gboolean is_break_char (char c);
+void edit_options_dialog (WDialog * h);
+void edit_mail_dialog (WEdit * edit);
+void format_paragraph (WEdit * edit, gboolean force);
+
+/* either command or char_for_insertion must be passed as -1 */
+void edit_execute_cmd (WEdit * edit, long command, int char_for_insertion);
+
+int editcmd_dialog_raw_key_query (const char *heading, const char *query, gboolean cancel);
+
+/*** inline functions ****************************************************************************/
+
+/**
+ * Load a new file into the editor.  If it fails, preserve the old file.
+ * To do it, allocate a new widget, initialize it and, if the new file
+ * was loaded, copy the data to the old widget.
+ *
+ * @return TRUE on success, FALSE on failure.
+ */
+static inline gboolean
+edit_reload (WEdit * edit, const vfs_path_t * filename_vpath)
+{
+    return edit_reload_line (edit, filename_vpath, 0);
+}
+
+#endif /* MC__EDIT_IMPL_H */