4coder/4coder_insertion.cpp

141 lines
4.2 KiB
C++

/*
* Serial inserts helpers
*/
// TOP
static Buffer_Insertion
begin_buffer_insertion_at(Application_Links *app, Buffer_ID buffer_id, i32 at){
Buffer_Insertion result = {};
result.app = app;
result.buffer = buffer_id;
result.at = at;
return(result);
}
static Buffer_Insertion
begin_buffer_insertion_at_buffered(Application_Links *app, Buffer_ID buffer_id, i32 at, Partition *part){
Buffer_Insertion result = begin_buffer_insertion_at(app, buffer_id, at);
result.buffering = true;
result.part = part;
result.temp = begin_temp_memory(part);
return(result);
}
static Buffer_Insertion
begin_buffer_insertion(Application_Links *app){
View_ID view = 0;
get_active_view(app, AccessAll, &view);
Buffer_ID buffer = 0;
view_get_buffer(app, view, AccessAll, &buffer);
i32 cursor_pos = 0;
view_get_cursor_pos(app, view, &cursor_pos);
Buffer_Insertion result = begin_buffer_insertion_at(app, buffer, cursor_pos);
return(result);
}
static void
insert_string__no_buffering(Buffer_Insertion *insertion, String string){
buffer_replace_range(insertion->app, insertion->buffer, insertion->at, insertion->at, string);
insertion->at += string.size;
}
static void
insert__flush(Buffer_Insertion *insertion){
Partition *part = insertion->part;
i32 pos = insertion->temp.pos;
String string = make_string(part->base + pos, part->pos - pos);
insert_string__no_buffering(insertion, string);
end_temp_memory(insertion->temp);
}
static char*
insert__reserve(Buffer_Insertion *insertion, i32 size){
char *space = push_array(insertion->part, char, size);
if (space == 0){
insert__flush(insertion);
space = push_array(insertion->part, char, size);
}
return(space);
}
static void
insert_string(Buffer_Insertion *insertion, String string){
if (!insertion->buffering){
insert_string__no_buffering(insertion, string);
}
else{
char *space = insert__reserve(insertion, string.size);
if (space != 0){
memcpy(space, string.str, string.size);
}
else{
insert_string__no_buffering(insertion, string);
}
}
}
static i32
insertf(Buffer_Insertion *insertion, char *format, ...){
Arena *arena = context_get_arena(insertion->app);
Temp_Memory_Arena temp = begin_temp_memory(arena);
va_list args;
va_start(args, format);
String string = string_push_fv(arena, format, args);
va_end(args);
insert_string(insertion, string);
end_temp_memory(temp);
return(string.size);
}
static void
insertc(Buffer_Insertion *insertion, char C){
insert_string(insertion, make_string(&C, 1));
}
static b32
insert_line_from_buffer(Buffer_Insertion *insertion, Buffer_ID buffer_id, i32 line, i32 truncate_at){
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
Partial_Cursor begin = {};
Partial_Cursor end = {};
b32 success = false;
if (buffer_compute_cursor(insertion->app, buffer_id, seek_line_char(line, 1), &begin)){
if (buffer_compute_cursor(insertion->app, buffer_id, seek_line_char(line, -1), &end)){
if (begin.line == line){
i32 buffer_size = 0;
buffer_get_size(insertion->app, buffer_id, &buffer_size);
if (0 <= begin.pos && begin.pos <= end.pos && end.pos <= buffer_size){
i32 size = (end.pos - begin.pos);
if(truncate_at && (size > truncate_at))
{
size = truncate_at;
}
char *memory = push_array(part, char, size);
if (memory != 0){
String str = make_string(memory, 0, size);
success = true;
buffer_read_range(insertion->app, buffer_id, begin.pos, end.pos, str.str);
str.size = size;
insert_string(insertion, str);
}
}
}
}
}
end_temp_memory(temp);
return(success);
}
static b32
insert_line_from_buffer(Buffer_Insertion *insertion, Buffer_ID buffer_id, i32 line){
return(insert_line_from_buffer(insertion, buffer_id, line, 0));
}
// BOTTOM