4coder/4ed_file.cpp

404 lines
9.2 KiB
C++

/*
* Mr. 4th Dimention - Allen Webster
*
* 20.02.2016
*
* File editing view for 4coder
*
*/
// TOP
#include "buffer/4coder_shared.cpp"
#if BUFFER_EXPERIMENT_SCALPEL == 0
#include "buffer/4coder_golden_array.cpp"
#define Buffer_Type Buffer
#elif BUFFER_EXPERIMENT_SCALPEL == 1
#include "buffer/4coder_gap_buffer.cpp"
#define Buffer_Type Gap_Buffer
#elif BUFFER_EXPERIMENT_SCALPEL == 2
#include "buffer/4coder_multi_gap_buffer.cpp"
#define Buffer_Type Multi_Gap_Buffer
#else
#include "buffer/4coder_rope_buffer.cpp"
#define Buffer_Type Rope_Buffer
#endif
#include "buffer/4coder_buffer_abstract.cpp"
enum Edit_Type{
ED_NORMAL,
ED_REVERSE_NORMAL,
ED_UNDO,
ED_REDO,
};
struct Edit_Step{
Edit_Type type;
union{
struct{
b32 can_merge;
Buffer_Edit edit;
i32 pre_pos;
i32 post_pos;
i32 next_block, prev_block;
};
struct{
i32 first_child;
i32 inverse_first_child;
i32 inverse_child_count;
i32 special_type;
};
};
i32 child_count;
};
struct Edit_Stack{
u8 *strings;
i32 size, max;
Edit_Step *edits;
i32 edit_count, edit_max;
};
struct Small_Edit_Stack{
u8 *strings;
i32 size, max;
Buffer_Edit *edits;
i32 edit_count, edit_max;
};
struct Undo_Data{
Edit_Stack undo;
Edit_Stack redo;
Edit_Stack history;
Small_Edit_Stack children;
i32 history_block_count, history_head_block;
i32 edit_history_cursor;
b32 current_block_normal;
};
struct Text_Effect{
i32 start, end;
u32 color;
i32 tick_down, tick_max;
};
// NOTE(allen): The Editing_File struct is now divided into two
// parts. Variables in the Settings part can be set even when the
// file is still streaming in, and all operations except for the
// initial allocation of the file.
struct Editing_File_Settings{
Font_Set *set;
i32 base_map_id;
i32 dos_write_mode;
b32 unwrapped_lines;
b8 tokens_exist;
b8 super_locked;
b8 is_initialized;
b8 unimportant;
};
// NOTE(allen): This part of the Editing_File is cleared whenever
// the contents of the file is set.
struct Editing_File_State{
b32 is_dummy;
b32 is_loading;
i16 font_id;
Buffer_Type buffer;
i32 cursor_pos;
Undo_Data undo;
Cpp_Token_Stack token_stack;
Cpp_Token_Stack swap_stack;
u32 lex_job;
b32 tokens_complete;
b32 still_lexing;
Text_Effect paste_effect;
u64 last_4ed_write_time;
u64 last_4ed_edit_time;
u64 last_sys_write_time;
};
struct Editing_File_Preload{
i32 start_line;
};
struct Editing_File_Name{
char live_name_[256];
String live_name;
char source_path_[256];
char extension_[16];
String source_path;
String extension;
};
struct Editing_File{
Editing_File_Settings settings;
union{
Editing_File_State state;
Editing_File_Preload preload;
};
Editing_File_Name name;
};
struct File_Table_Entry{
String name;
u32 hash;
i32 id;
};
struct File_Table{
File_Table_Entry *table;
i32 count, max;
};
internal u32
get_file_hash(String name){
u32 x = 5381;
int i = 0;
char c;
while (i < name.size){
c = name.str[i++];
x = ((x << 5) + x) + c;
}
return x;
}
internal b32
table_add(File_Table *table, String name, i32 id){
Assert(table->count * 3 < table->max * 2);
File_Table_Entry entry, e;
i32 i;
entry.name = name;
entry.id = id;
entry.hash = get_file_hash(name);
i = entry.hash % table->max;
while ((e = table->table[i]).name.str){
if (e.hash == entry.hash && match(e.name, entry.name)){
return 1;
}
i = (i + 1) % table->max;
}
table->table[i] = entry;
++table->count;
return 0;
}
internal b32
table_find_pos(File_Table *table, String name, i32 *index){
File_Table_Entry e;
i32 i;
u32 hash;
hash = get_file_hash(name);
i = hash % table->max;
while ((e = table->table[i]).name.size){
if (e.name.str && e.hash == hash && match(e.name, name)){
*index = i;
return 1;
}
i = (i + 1) % table->max;
}
return 0;
}
inline b32
table_find(File_Table *table, String name, i32 *id){
i32 pos;
b32 r = table_find_pos(table, name, &pos);
if (r) *id = table->table[pos].id;
return r;
}
inline b32
table_remove(File_Table *table, String name){
i32 pos;
b32 r = table_find_pos(table, name, &pos);
if (r){
table->table[pos].name.str = 0;
--table->count;
}
return r;
}
struct Working_Set{
Editing_File *files;
i32 file_index_count, file_max_count;
File_Table table;
String clipboards[64];
i32 clipboard_size, clipboard_max_size;
i32 clipboard_current, clipboard_rolling;
};
// Hot Directory
struct Hot_Directory{
String string;
File_List file_list;
char slash;
};
internal void
hot_directory_init(Hot_Directory *hot_directory, String base, String dir, char slash){
hot_directory->string = base;
hot_directory->string.str[255] = 0;
hot_directory->string.size = 0;
copy(&hot_directory->string, dir);
append(&hot_directory->string, slash);
hot_directory->slash = slash;
}
internal void
hot_directory_clean_end(Hot_Directory *hot_directory){
String *str = &hot_directory->string;
if (str->size != 0 && str->str[str->size-1] != hot_directory->slash){
str->size = reverse_seek_slash(*str) + 1;
str->str[str->size] = 0;
}
}
internal i32
hot_directory_quick_partition(File_Info *infos, i32 start, i32 pivot){
File_Info *p = infos + pivot;
File_Info *a = infos + start;
for (i32 i = start; i < pivot; ++i, ++a){
i32 comp = 0;
comp = p->folder - a->folder;
if (comp == 0) comp = compare(a->filename, p->filename);
if (comp < 0){
Swap(*a, infos[start]);
++start;
}
}
Swap(*p, infos[start]);
return start;
}
internal void
hot_directory_quick_sort(File_Info *infos, i32 start, i32 pivot){
i32 mid = hot_directory_quick_partition(infos, start, pivot);
if (start < mid-1) hot_directory_quick_sort(infos, start, mid-1);
if (mid+1 < pivot) hot_directory_quick_sort(infos, mid+1, pivot);
}
inline void
hot_directory_fixup(Hot_Directory *hot_directory, Working_Set *working_set){
File_List *files = &hot_directory->file_list;
if (files->count >= 2)
hot_directory_quick_sort(files->infos, 0, files->count - 1);
}
inline void
hot_directory_set(System_Functions *system, Hot_Directory *hot_directory,
String str, Working_Set *working_set){
b32 success = copy_checked(&hot_directory->string, str);
terminate_with_null(&hot_directory->string);
if (success){
system->set_file_list(&hot_directory->file_list, str);
}
hot_directory_fixup(hot_directory, working_set);
}
inline void
hot_directory_reload(System_Functions *system, Hot_Directory *hot_directory, Working_Set *working_set){
system->set_file_list(&hot_directory->file_list, hot_directory->string);
hot_directory_fixup(hot_directory, working_set);
}
struct Hot_Directory_Match{
String filename;
b32 is_folder;
};
internal b32
filename_match(String query, Absolutes *absolutes, String filename, b32 case_sensitive){
b32 result;
result = (query.size == 0);
if (!result) result = wildcard_match(absolutes, filename, case_sensitive);
return result;
}
internal Hot_Directory_Match
hot_directory_first_match(Hot_Directory *hot_directory,
String str,
b32 include_files,
b32 exact_match,
b32 case_sensitive){
Hot_Directory_Match result = {};
Absolutes absolutes;
if (!exact_match)
get_absolutes(str, &absolutes, 1, 1);
File_List *files = &hot_directory->file_list;
File_Info *info, *end;
end = files->infos + files->count;
for (info = files->infos; info != end; ++info){
String filename = info->filename;
b32 is_match = 0;
if (exact_match){
if (case_sensitive){
if (match(filename, str)) is_match = 1;
}
else{
if (match_unsensitive(filename, str)) is_match = 1;
}
}
else{
if (filename_match(str, &absolutes, filename, case_sensitive)) is_match = 1;
}
if (is_match){
result.is_folder = info->folder;
result.filename = filename;
break;
}
}
return result;
}
enum File_Sync_State{
SYNC_GOOD,
SYNC_BEHIND_OS,
SYNC_UNSAVED
};
inline File_Sync_State
buffer_get_sync(Editing_File *file){
File_Sync_State result = SYNC_GOOD;
if (file->state.last_4ed_write_time != file->state.last_sys_write_time)
result = SYNC_BEHIND_OS;
else if (file->state.last_4ed_edit_time > file->state.last_sys_write_time)
result = SYNC_UNSAVED;
return result;
}
inline b32
buffer_needs_save(Editing_File *file){
b32 result = 0;
if (file->settings.unimportant == 0)
if (buffer_get_sync(file) == SYNC_UNSAVED)
result = 1;
return(result);
}
// BOTTOM