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