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Fix up the behavior of cross buffer undo redo a little more; setup for view_buffer_set

This commit is contained in:
Allen Webster 2019-02-11 19:10:42 -08:00
parent 5c045a2d5e
commit 2c00fbfd70
2 changed files with 54 additions and 5 deletions
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52
4coder_base_commands.cpp
View File

@ -1633,9 +1633,11 @@ CUSTOM_DOC("Advances forwards through the undo history of the current buffer.")
CUSTOM_COMMAND_SIG(undo)
CUSTOM_DOC("Advances backward through the undo history in the buffer containing the most recent regular edit.")
{
Partition *scratch = &global_part;
int32_t highest_edit_number = -1;
Buffer_ID first_buffer_match = 0;
Buffer_ID last_buffer_match = 0;
int32_t match_count = 0;
for (Buffer_Summary buffer = get_buffer_first(app, AccessAll);
buffer.exists;
@ -1647,22 +1649,30 @@ CUSTOM_DOC("Advances backward through the undo history in the buffer containing
highest_edit_number = record.edit_number;
first_buffer_match = buffer.buffer_id;
last_buffer_match = buffer.buffer_id;
match_count = 1;
}
else if (record.edit_number == highest_edit_number){
last_buffer_match = buffer.buffer_id;
match_count += 1;
}
}
}
Temp_Memory temp = begin_temp_memory(scratch);
Buffer_ID *match_buffers = push_array(scratch, Buffer_ID, match_count);
match_count = 0;
if (highest_edit_number != -1){
for (Buffer_Summary buffer = get_buffer(app, first_buffer_match, AccessAll);
buffer.exists;
get_buffer_next(app, &buffer, AccessAll)){
bool32 did_match = false;
for (;;){
History_Record_Index index = buffer_history_get_current_state_index(app, &buffer);
if (index > 0){
Record_Info record = buffer_history_get_record_info(app, &buffer, index);
if (record.edit_number == highest_edit_number){
did_match = true;
buffer_history_set_current_state_index(app, &buffer, index - 1);
}
else{
@ -1673,19 +1683,29 @@ CUSTOM_DOC("Advances backward through the undo history in the buffer containing
break;
}
}
if (did_match){
match_buffers[match_count] = buffer.buffer_id;
match_count += 1;
}
if (buffer.buffer_id == last_buffer_match){
break;
}
}
}
view_buffer_set(app, match_buffers, match_count);
end_temp_memory(temp);
}
CUSTOM_COMMAND_SIG(redo)
CUSTOM_DOC("Advances forward through the undo history in the buffer containing the most recent regular edit.")
{
Partition *scratch = &global_part;
int32_t lowest_edit_number = 0x7FFFFFFF;
Buffer_ID first_buffer_match = 0;
Buffer_ID last_buffer_match = 0;
int32_t match_count = 0;
for (Buffer_Summary buffer = get_buffer_first(app, AccessAll);
buffer.exists;
@ -1698,30 +1718,52 @@ CUSTOM_DOC("Advances forward through the undo history in the buffer containing t
lowest_edit_number = record.edit_number;
first_buffer_match = buffer.buffer_id;
last_buffer_match = buffer.buffer_id;
match_count = 1;
}
else if (record.edit_number == lowest_edit_number){
last_buffer_match = buffer.buffer_id;
match_count += 1;
}
}
}
Temp_Memory temp = begin_temp_memory(scratch);
if (lowest_edit_number != -1){
for (Buffer_Summary buffer = get_buffer(app, first_buffer_match, AccessAll);
buffer.exists;
get_buffer_next(app, &buffer, AccessAll)){
bool32 did_match = false;
History_Record_Index max_index = buffer_history_get_max_record_index(app, &buffer);
History_Record_Index index = buffer_history_get_current_state_index(app, &buffer);
if (index < max_index){
Record_Info record = buffer_history_get_record_info(app, &buffer, index + 1);
if (record.edit_number == lowest_edit_number){
buffer_history_set_current_state_index(app, &buffer, index + 1);
for (;;){
History_Record_Index index = buffer_history_get_current_state_index(app, &buffer);
if (index < max_index){
Record_Info record = buffer_history_get_record_info(app, &buffer, index + 1);
if (record.edit_number == lowest_edit_number){
did_match = true;
buffer_history_set_current_state_index(app, &buffer, index + 1);
}
else{
break;
}
}
else{
break;
}
}
if (did_match){
match_buffers[match_count] = buffer.buffer_id;
match_count += 1;
}
if (buffer.buffer_id == last_buffer_match){
break;
}
}
}
view_buffer_set(app, match_buffers, match_count);
end_temp_memory(temp);
}
////////////////////////////////

7
4coder_helper.cpp
View File

@ -1592,5 +1592,12 @@ get_single_record(Application_Links *app, Buffer_ID buffer_id, History_Record_In
return(record);
}
////////////////////////////////
static void
view_buffer_set(Application_Links *app, Buffer_ID *buffers, int32_t count){
// TODO(allen): do(implement view_buffer_set)
}
// BOTTOM