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4coder
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4coder/4coder_default_include.cpp

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#include "4coder_custom.h"
#define FCPP_STRING_IMPLEMENTATION
#include "4coder_string.h"
#include "4coder_helper.h"
#include <assert.h>
inline float
get_view_y(View_Summary view){
float y;
if (view.unwrapped_lines){
y = view.cursor.unwrapped_y;
}
else{
y = view.cursor.wrapped_y;
}
return(y);
}
inline float
get_view_x(View_Summary view){
float x;
if (view.unwrapped_lines){
x = view.cursor.unwrapped_x;
}
else{
x = view.cursor.wrapped_x;
}
return(x);
}
//
// Fundamental Editing
//
CUSTOM_COMMAND_SIG(write_character){
View_Summary view = app->get_active_view(app);
User_Input in = app->get_command_input(app);
char character = 0;
if (in.type == UserInputKey){
character = in.key.character;
}
if (character != 0){
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id);
int pos = view.cursor.pos;
int next_pos = pos + 1;
app->buffer_replace_range(app, &buffer,
pos, pos, &character, 1);
app->view_set_cursor(app, &view, seek_pos(next_pos), true);
}
}
CUSTOM_COMMAND_SIG(delete_char){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id);
int pos = view.cursor.pos;
if (0 < buffer.size && pos < buffer.size){
app->buffer_replace_range(app, &buffer,
pos, pos+1, 0, 0);
}
}
CUSTOM_COMMAND_SIG(backspace_char){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id);
int pos = view.cursor.pos;
if (0 < pos && pos <= buffer.size){
app->buffer_replace_range(app, &buffer,
pos-1, pos, 0, 0);
app->view_set_cursor(app, &view, seek_pos(pos-1), true);
}
}
CUSTOM_COMMAND_SIG(set_mark){
View_Summary view = app->get_active_view(app);
app->view_set_mark(app, &view, seek_pos(view.cursor.pos));
// TODO(allen): Just expose the preferred_x seperately
app->view_set_cursor(app, &view, seek_pos(view.cursor.pos), true);
}
CUSTOM_COMMAND_SIG(cursor_mark_swap){
View_Summary view = app->get_active_view(app);
int cursor = view.cursor.pos;
int mark = view.mark.pos;
app->view_set_cursor(app, &view, seek_pos(mark), true);
app->view_set_mark(app, &view, seek_pos(cursor));
}
CUSTOM_COMMAND_SIG(delete_range){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.buffer_id);
Range range = get_range(&view);
app->buffer_replace_range(app, &buffer,
range.min, range.max,
0, 0);
}
//
// Basic Navigation
//
int
get_relative_xy(View_Summary *view, int x, int y, float *x_out, float *y_out){
int result = false;
i32_Rect region = view->file_region;
int max_x = (region.x1 - region.x0);
int max_y = (region.y1 - region.y0);
GUI_Scroll_Vars scroll_vars = view->scroll_vars;
int rx = x - region.x0;
int ry = y - region.y0;
if (ry >= 0){
if (rx >= 0 && rx < max_x && ry >= 0 && ry < max_y){
result = 1;
}
}
*x_out = (float)rx + scroll_vars.scroll_x;
*y_out = (float)ry + scroll_vars.scroll_y;
return(result);
}
CUSTOM_COMMAND_SIG(click_set_cursor){
View_Summary view = app->get_active_view(app);
// TODO(allen): Need a better system for
// weeding out views in a hidden state.
if (view.locked_buffer_id != 0){
Mouse_State mouse = app->get_mouse_state(app);
float rx = 0, ry = 0;
if (get_relative_xy(&view, mouse.x, mouse.y, &rx, &ry)){
app->view_set_cursor(app, &view,
seek_xy(rx, ry, true,
view.unwrapped_lines),
true);
}
}
}
CUSTOM_COMMAND_SIG(click_set_mark){
View_Summary view = app->get_active_view(app);
if (view.locked_buffer_id != 0){
Mouse_State mouse = app->get_mouse_state(app);
float rx = 0, ry = 0;
if (get_relative_xy(&view, mouse.x, mouse.y, &rx, &ry)){
app->view_set_mark(app, &view,
seek_xy(rx, ry, true,
view.unwrapped_lines)
);
}
}
}
inline void
move_vertical(Application_Links *app, float line_multiplier){
View_Summary view = app->get_active_view(app);
float new_y = get_view_y(view) + line_multiplier*view.line_height;
float x = view.preferred_x;
app->view_set_cursor(app, &view,
seek_xy(x, new_y, false, view.unwrapped_lines),
false);
}
CUSTOM_COMMAND_SIG(move_up){
move_vertical(app, -1.f);
}
CUSTOM_COMMAND_SIG(move_down){
move_vertical(app, 1.f);
}
CUSTOM_COMMAND_SIG(move_up_10){
move_vertical(app, -10.f);
}
CUSTOM_COMMAND_SIG(move_down_10){
move_vertical(app, 10.f);
}
CUSTOM_COMMAND_SIG(move_left){
View_Summary view = app->get_active_view(app);
int new_pos = view.cursor.pos - 1;
app->view_set_cursor(app, &view,
seek_pos(new_pos),
true);
}
CUSTOM_COMMAND_SIG(move_right){
View_Summary view = app->get_active_view(app);
int new_pos = view.cursor.pos + 1;
app->view_set_cursor(app, &view,
seek_pos(new_pos),
true);
}
//
// Various Forms of Seek
//
static int
buffer_seek_whitespace_up(Application_Links *app, Buffer_Summary *buffer, int pos){
char chunk[1024];
int chunk_size = sizeof(chunk);
Stream_Chunk stream = {0};
int no_hard;
int still_looping;
char at_pos;
--pos;
if (init_stream_chunk(&stream, app, buffer, pos, chunk, chunk_size)){
// Step 1: Find the first non-whitespace character
// behind the current position.
still_looping = true;
do{
for (; pos >= stream.start; --pos){
at_pos = stream.data[pos];
if (!char_is_whitespace(at_pos)){
goto double_break_1;
}
}
still_looping = backward_stream_chunk(&stream);
} while(still_looping);
double_break_1:;
// Step 2: Continue scanning backward, at each '\n'
// mark the beginning of another line by setting
// no_hard to true, set it back to false if a
// non-whitespace character is discovered before
// the next '\n'
no_hard = false;
while (still_looping){
for (; pos >= stream.start; --pos){
at_pos = stream.data[pos];
if (at_pos == '\n'){
if (no_hard){
goto double_break_2;
}
else{
no_hard = true;
}
}
else if (!char_is_whitespace(at_pos)){
no_hard = false;
}
}
still_looping = backward_stream_chunk(&stream);
}
double_break_2:;
if (pos != 0){
++pos;
}
}
return(pos);
}
static int
buffer_seek_whitespace_down(Application_Links *app, Buffer_Summary *buffer, int pos){
char chunk[1024];
int chunk_size = sizeof(chunk);
Stream_Chunk stream = {0};
int no_hard;
int prev_endline;
int still_looping;
char at_pos;
if (init_stream_chunk(&stream, app, buffer, pos, chunk, chunk_size)){
// Step 1: Find the first non-whitespace character
// ahead of the current position.
still_looping = true;
do{
for (; pos < stream.end; ++pos){
at_pos = stream.data[pos];
if (!char_is_whitespace(at_pos)){
goto double_break_1;
}
}
still_looping = forward_stream_chunk(&stream);
} while(still_looping);
double_break_1:;
// Step 2: Continue scanning forward, at each '\n'
// mark it as the beginning of a new line by updating
// the prev_endline value. If another '\n' is found
// with non-whitespace then the previous line was
// all whitespace.
no_hard = false;
prev_endline = -1;
while(still_looping){
for (; pos < stream.end; ++pos){
at_pos = stream.data[pos];
if (at_pos == '\n'){
if (no_hard){
goto double_break_2;
}
else{
no_hard = true;
prev_endline = pos;
}
}
else if (!char_is_whitespace(at_pos)){
no_hard = false;
}
}
still_looping = forward_stream_chunk(&stream);
}
double_break_2:;
if (prev_endline == -1 || prev_endline+1 >= buffer->size){
pos = buffer->size;
}
else{
pos = prev_endline+1;
}
}
return(pos);
}
CUSTOM_COMMAND_SIG(seek_whitespace_up){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.locked_buffer_id);
int new_pos = buffer_seek_whitespace_up(app, &buffer, view.cursor.pos);
app->view_set_cursor(app, &view,
seek_pos(new_pos),
true);
}
CUSTOM_COMMAND_SIG(seek_whitespace_down){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.locked_buffer_id);
int new_pos = buffer_seek_whitespace_down(app, &buffer, view.cursor.pos);
app->view_set_cursor(app, &view,
seek_pos(new_pos),
true);
}
static int
seek_line_end(Application_Links *app, Buffer_Summary *buffer, int pos){
char chunk[1024];
int chunk_size = sizeof(chunk);
Stream_Chunk stream = {0};
int still_looping;
char at_pos;
if (init_stream_chunk(&stream, app, buffer, pos, chunk, chunk_size)){
still_looping = 1;
do{
for (; pos < stream.end; ++pos){
at_pos = stream.data[pos];
if (at_pos == '\n'){
goto double_break;
}
}
still_looping = forward_stream_chunk(&stream);
}while(still_looping);
double_break:;
if (pos > buffer->size){
pos = buffer->size;
}
}
return(pos);
}
static int
seek_line_beginning(Application_Links *app, Buffer_Summary *buffer, int pos){
char chunk[1024];
int chunk_size = sizeof(chunk);
Stream_Chunk stream = {0};
int still_looping;
char at_pos;
--pos;
if (init_stream_chunk(&stream, app, buffer, pos, chunk, chunk_size)){
still_looping = 1;
do{
for (; pos >= stream.start; --pos){
at_pos = stream.data[pos];
if (at_pos == '\n'){
goto double_break;
}
}
still_looping = backward_stream_chunk(&stream);
}while(still_looping);
double_break:;
if (pos != 0){
++pos;
}
if (pos < 0){
pos = 0;
}
}
return(pos);
}
CUSTOM_COMMAND_SIG(seek_end_of_line){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.locked_buffer_id);
int new_pos = seek_line_end(app, &buffer, view.cursor.pos);
app->view_set_cursor(app, &view, seek_pos(new_pos), true);
}
CUSTOM_COMMAND_SIG(seek_beginning_of_line){
View_Summary view = app->get_active_view(app);
Buffer_Summary buffer = app->get_buffer(app, view.locked_buffer_id);
int new_pos = seek_line_beginning(app, &buffer, view.cursor.pos);
app->view_set_cursor(app, &view, seek_pos(new_pos), true);
}
static void
basic_seek(Application_Links *app, Command_ID seek_type, unsigned int flags){
push_parameter(app, par_flags, flags);
exec_command(app, seek_type);
}
#define SEEK_COMMAND(n, dir, flags)\
CUSTOM_COMMAND_SIG(seek_##n##_##dir){ basic_seek(app, cmdid_seek_##dir, flags); }
SEEK_COMMAND(whitespace, right, BoundryWhitespace)
SEEK_COMMAND(whitespace, left, BoundryWhitespace)
SEEK_COMMAND(token, right, BoundryToken)
SEEK_COMMAND(token, left, BoundryToken)
SEEK_COMMAND(white_or_token, right, BoundryToken | BoundryWhitespace)
SEEK_COMMAND(white_or_token, left, BoundryToken | BoundryWhitespace)
SEEK_COMMAND(alphanumeric, right, BoundryAlphanumeric)
SEEK_COMMAND(alphanumeric, left, BoundryAlphanumeric)
SEEK_COMMAND(alphanumeric_or_camel, right, BoundryAlphanumeric | BoundryCamelCase)
SEEK_COMMAND(alphanumeric_or_camel, left, BoundryAlphanumeric | BoundryCamelCase)
//
// Special string writing commands
//
static void
write_string(Application_Links *app, String string){
Buffer_Summary buffer = get_active_buffer(app);
app->buffer_replace_range(app, &buffer,
buffer.buffer_cursor_pos, buffer.buffer_cursor_pos,
string.str, string.size);
}
CUSTOM_COMMAND_SIG(write_increment){
write_string(app, make_lit_string("++"));
}
static void
long_braces(Application_Links *app, char *text, int size){
View_Summary view;
Buffer_Summary buffer;
int pos;
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
app->buffer_replace_range(app, &buffer, pos, pos, text, size);
app->view_set_cursor(app, &view, seek_pos(pos + 2), 1);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos + size);
push_parameter(app, par_clear_blank_lines, 0);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(open_long_braces){
char text[] = "{\n\n}";
int size = sizeof(text) - 1;
long_braces(app, text, size);
}
CUSTOM_COMMAND_SIG(open_long_braces_semicolon){
char text[] = "{\n\n};";
int size = sizeof(text) - 1;
long_braces(app, text, size);
}
CUSTOM_COMMAND_SIG(open_long_braces_break){
char text[] = "{\n\n}break;";
int size = sizeof(text) - 1;
long_braces(app, text, size);
}
// TODO(allen): Have this thing check if it is on
// a blank line and insert newlines as needed.
CUSTOM_COMMAND_SIG(if0_off){
View_Summary view;
Buffer_Summary buffer;
char text1[] = "\n#if 0";
int size1 = sizeof(text1) - 1;
char text2[] = "#endif\n";
int size2 = sizeof(text2) - 1;
Range range;
int pos;
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.buffer_id);
range = get_range(&view);
pos = range.min;
app->buffer_replace_range(app, &buffer, pos, pos, text1, size1);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos);
exec_command(app, cmdid_auto_tab_range);
app->refresh_view(app, &view);
range = get_range(&view);
pos = range.max;
app->buffer_replace_range(app, &buffer, pos, pos, text2, size2);
push_parameter(app, par_range_start, pos);
push_parameter(app, par_range_end, pos);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(backspace_word){
View_Summary view;
Buffer_Summary buffer;
int pos2, pos1;
view = app->get_active_view(app);
pos2 = view.cursor.pos;
exec_command(app, seek_alphanumeric_left);
app->refresh_view(app, &view);
pos1 = view.cursor.pos;
buffer = app->get_buffer(app, view.buffer_id);
app->buffer_replace_range(app, &buffer, pos1, pos2, 0, 0);
}
CUSTOM_COMMAND_SIG(delete_word){
View_Summary view;
Buffer_Summary buffer;
int pos2, pos1;
view = app->get_active_view(app);
pos1 = view.cursor.pos;
exec_command(app, seek_alphanumeric_right);
app->refresh_view(app, &view);
pos2 = view.cursor.pos;
buffer = app->get_buffer(app, view.buffer_id);
app->buffer_replace_range(app, &buffer, pos1, pos2, 0, 0);
}
CUSTOM_COMMAND_SIG(snipe_token_or_word){
View_Summary view;
Buffer_Summary buffer;
int pos1, pos2;
view = app->get_active_view(app);
push_parameter(app, par_flags, BoundryToken | BoundryWhitespace);
exec_command(app, cmdid_seek_left);
app->refresh_view(app, &view);
pos1 = view.cursor.pos;
push_parameter(app, par_flags, BoundryToken | BoundryWhitespace);
exec_command(app, cmdid_seek_right);
app->refresh_view(app, &view);
pos2 = view.cursor.pos;
Range range = make_range(pos1, pos2);
buffer = app->get_buffer(app, view.buffer_id);
app->buffer_replace_range(app, &buffer, range.start, range.end, 0, 0);
}
CUSTOM_COMMAND_SIG(open_file_in_quotes){
View_Summary view;
Buffer_Summary buffer;
char short_file_name[128];
int pos, start, end, size;
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
buffer_seek_delimiter_forward(app, &buffer, pos, '"', &end);
buffer_seek_delimiter_backward(app, &buffer, pos, '"', &start);
++start;
size = end - start;
// NOTE(allen): This check is necessary because app->buffer_read_range
// requiers that the output buffer you provide is at least (end - start) bytes long.
if (size < sizeof(short_file_name)){
char file_name_[256];
String file_name = make_fixed_width_string(file_name_);
app->buffer_read_range(app, &buffer, start, end, short_file_name);
copy(&file_name, make_string(buffer.file_name, buffer.file_name_len));
remove_last_folder(&file_name);
append(&file_name, make_string(short_file_name, size));
exec_command(app, cmdid_change_active_panel);
push_parameter(app, par_name, expand_str(file_name));
exec_command(app, cmdid_interactive_open);
}
}
CUSTOM_COMMAND_SIG(save_as){
push_parameter(app, par_save_update_name, 1);
exec_command(app, cmdid_save);
}
CUSTOM_COMMAND_SIG(goto_line){
int line_number;
Query_Bar bar;
char string_space[256];
bar.prompt = make_lit_string("Goto Line: ");
bar.string = make_fixed_width_string(string_space);
if (query_user_number(app, &bar)){
line_number = str_to_int(bar.string);
active_view_to_line(app, line_number);
}
}
CUSTOM_COMMAND_SIG(search);
CUSTOM_COMMAND_SIG(reverse_search);
static void
isearch(Application_Links *app, int start_reversed){
View_Summary view;
Buffer_Summary buffer;
User_Input in;
Query_Bar bar;
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.locked_buffer_id);
if (!buffer.exists) return;
if (app->start_query_bar(app, &bar, 0) == 0) return;
Range match;
int reverse = start_reversed;
int pos;
pos = view.cursor.pos;
match = make_range(pos, pos);
char bar_string_space[256];
bar.string = make_fixed_width_string(bar_string_space);
String isearch = make_lit_string("I-Search: ");
String rsearch = make_lit_string("Reverse-I-Search: ");
while (1){
// NOTE(allen): Change the bar's prompt to match the current direction.
if (reverse) bar.prompt = rsearch;
else bar.prompt = isearch;
in = app->get_user_input(app, EventOnAnyKey, EventOnEsc | EventOnButton);
if (in.abort) break;
// NOTE(allen): If we're getting mouse events here it's a 4coder bug, because we
// only asked to intercept key events.
assert(in.type == UserInputKey);
int made_change = 0;
if (in.key.keycode == '\n' || in.key.keycode == '\t'){
break;
}
else if (in.key.character && key_is_unmodified(&in.key)){
append(&bar.string, in.key.character);
made_change = 1;
}
else if (in.key.keycode == key_back){
if (bar.string.size > 0){
--bar.string.size;
made_change = 1;
}
}
int step_forward = 0;
int step_backward = 0;
if (CommandEqual(in.command, search) ||
in.key.keycode == key_page_down || in.key.keycode == key_down) step_forward = 1;
if (CommandEqual(in.command, reverse_search) ||
in.key.keycode == key_page_up || in.key.keycode == key_up) step_backward = 1;
int start_pos = pos;
if (step_forward && reverse){
start_pos = match.start + 1;
pos = start_pos;
reverse = 0;
step_forward = 0;
}
if (step_backward && !reverse){
start_pos = match.start - 1;
pos = start_pos;
reverse = 1;
step_backward = 0;
}
if (in.key.keycode != key_back){
int new_pos;
if (reverse){
buffer_seek_string_insensitive_backward(app, &buffer, start_pos - 1,
bar.string.str, bar.string.size, &new_pos);
if (new_pos >= 0){
if (step_backward){
pos = new_pos;
start_pos = new_pos;
buffer_seek_string_insensitive_backward(app, &buffer, start_pos - 1,
bar.string.str, bar.string.size, &new_pos);
if (new_pos < 0) new_pos = start_pos;
}
match.start = new_pos;
match.end = match.start + bar.string.size;
}
}
else{
buffer_seek_string_insensitive_forward(app, &buffer, start_pos + 1,
bar.string.str, bar.string.size, &new_pos);
if (new_pos < buffer.size){
if (step_forward){
pos = new_pos;
start_pos = new_pos;
buffer_seek_string_insensitive_forward(app, &buffer, start_pos + 1,
bar.string.str, bar.string.size, &new_pos);
if (new_pos >= buffer.size) new_pos = start_pos;
}
match.start = new_pos;
match.end = match.start + bar.string.size;
}
}
}
else{
if (match.end > match.start + bar.string.size){
match.end = match.start + bar.string.size;
}
}
app->view_set_highlight(app, &view, match.start, match.end, 1);
}
app->view_set_highlight(app, &view, 0, 0, 0);
if (in.abort) return;
app->view_set_cursor(app, &view, seek_pos(match.min), 1);
}
CUSTOM_COMMAND_SIG(search){
isearch(app, 0);
}
CUSTOM_COMMAND_SIG(reverse_search){
isearch(app, 1);
}
CUSTOM_COMMAND_SIG(replace_in_range){
Query_Bar replace;
char replace_space[1024];
replace.prompt = make_lit_string("Replace: ");
replace.string = make_fixed_width_string(replace_space);
Query_Bar with;
char with_space[1024];
with.prompt = make_lit_string("With: ");
with.string = make_fixed_width_string(with_space);
if (!query_user_string(app, &replace)) return;
if (replace.string.size == 0) return;
if (!query_user_string(app, &with)) return;
String r, w;
r = replace.string;
w = with.string;
Buffer_Summary buffer;
View_Summary view;
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.buffer_id);
Range range = get_range(&view);
int pos, new_pos;
pos = range.min;
buffer_seek_string_forward(app, &buffer, pos, r.str, r.size, &new_pos);
while (new_pos + r.size <= range.end){
app->buffer_replace_range(app, &buffer, new_pos, new_pos + r.size, w.str, w.size);
app->refresh_view(app, &view);
range = get_range(&view);
pos = new_pos + w.size;
buffer_seek_string_forward(app, &buffer, pos, r.str, r.size, &new_pos);
}
}
CUSTOM_COMMAND_SIG(query_replace){
Query_Bar replace;
char replace_space[1024];
replace.prompt = make_lit_string("Replace: ");
replace.string = make_fixed_width_string(replace_space);
Query_Bar with;
char with_space[1024];
with.prompt = make_lit_string("With: ");
with.string = make_fixed_width_string(with_space);
if (!query_user_string(app, &replace)) return;
if (replace.string.size == 0) return;
if (!query_user_string(app, &with)) return;
String r, w;
r = replace.string;
w = with.string;
Query_Bar bar;
Buffer_Summary buffer;
View_Summary view;
int pos, new_pos;
bar.prompt = make_lit_string("Replace? (y)es, (n)ext, (esc)\n");
bar.string = empty_string();
app->start_query_bar(app, &bar, 0);
view = app->get_active_view(app);
buffer = app->get_buffer(app, view.buffer_id);
pos = view.cursor.pos;
buffer_seek_string_forward(app, &buffer, pos, r.str, r.size, &new_pos);
User_Input in = {0};
while (new_pos < buffer.size){
Range match = make_range(new_pos, new_pos + r.size);
app->view_set_highlight(app, &view, match.min, match.max, 1);
in = app->get_user_input(app, EventOnAnyKey, EventOnButton);
if (in.abort || in.key.keycode == key_esc || !key_is_unmodified(&in.key)) break;
if (in.key.character == 'y' || in.key.character == 'Y' || in.key.character == '\n' || in.key.character == '\t'){
app->buffer_replace_range(app, &buffer, match.min, match.max, w.str, w.size);
pos = match.start + w.size;
}
else{
pos = match.max;
}
buffer_seek_string_forward(app, &buffer, pos, r.str, r.size, &new_pos);
}
app->view_set_highlight(app, &view, 0, 0, 0);
if (in.abort) return;
app->view_set_cursor(app, &view, seek_pos(pos), 1);
}
CUSTOM_COMMAND_SIG(close_all_code){
String extension;
Buffer_Summary buffer;
// TODO(allen): Get better memory constructs to the custom layer
// so that it doesn't have to rely on arbitrary limits like this one.
int buffers_to_close[2048];
int buffers_to_close_count = 0;
for (buffer = app->get_buffer_first(app);
buffer.exists;
app->get_buffer_next(app, &buffer)){
extension = file_extension(make_string(buffer.file_name, buffer.file_name_len));
if (match(extension, make_lit_string("cpp")) ||
match(extension, make_lit_string("hpp")) ||
match(extension, make_lit_string("c")) ||
match(extension, make_lit_string("h"))){
buffers_to_close[buffers_to_close_count++] = buffer.buffer_id;
}
}
for (int i = 0; i < buffers_to_close_count; ++i){
push_parameter(app, par_buffer_id, buffers_to_close[i]);
exec_command(app, cmdid_kill_buffer);
}
}
CUSTOM_COMMAND_SIG(open_all_code){
// NOTE(allen|a3.4.4): This method of getting the hot directory works
// because this custom.cpp gives no special meaning to app->memory
// and doesn't set up a persistent allocation system within app->memory.
// push_directory isn't a very good option since it's tied to the parameter
// stack, so I am phasing that idea out now.
String dir = make_string(app->memory, 0, app->memory_size);
dir.size = app->directory_get_hot(app, dir.str, dir.memory_size);
int dir_size = dir.size;
// NOTE(allen|a3.4.4): Here we get the list of files in this directory.
// Notice that we free_file_list at the end.
File_List list = app->get_file_list(app, dir.str, dir.size);
for (int i = 0; i < list.count; ++i){
File_Info *info = list.infos + i;
if (!info->folder){
String extension = file_extension(info->filename);
if (match(extension, make_lit_string("cpp")) ||
match(extension, make_lit_string("hpp")) ||
match(extension, make_lit_string("c")) ||
match(extension, make_lit_string("h"))){
// NOTE(allen): There's no way in the 4coder API to use relative
// paths at the moment, so everything should be full paths. Which is
// managable. Here simply set the dir string size back to where it
// was originally, so that new appends overwrite old ones.
dir.size = dir_size;
append(&dir, info->filename);
push_parameter(app, par_name, dir.str, dir.size);
//push_parameter(app, par_do_in_background, 1);
exec_command(app, cmdid_interactive_open);
}
}
}
app->free_file_list(app, list);
}
char out_buffer_space[1024], command_space[1024], hot_directory_space[1024];
CUSTOM_COMMAND_SIG(execute_any_cli){
Query_Bar bar_out, bar_cmd;
String hot_directory;
bar_out.prompt = make_lit_string("Output Buffer: ");
bar_out.string = make_fixed_width_string(out_buffer_space);
if (!query_user_string(app, &bar_out)) return;
bar_cmd.prompt = make_lit_string("Command: ");
bar_cmd.string = make_fixed_width_string(command_space);
if (!query_user_string(app, &bar_cmd)) return;
hot_directory = make_fixed_width_string(hot_directory_space);
hot_directory.size = app->directory_get_hot(app, hot_directory.str, hot_directory.memory_size);
push_parameter(app, par_flags, CLI_OverlapWithConflict);
push_parameter(app, par_name, bar_out.string.str, bar_out.string.size);
push_parameter(app, par_cli_path, hot_directory.str, hot_directory.size);
push_parameter(app, par_cli_command, bar_cmd.string.str, bar_cmd.string.size);
exec_command(app, cmdid_command_line);
terminate_with_null(&bar_out.string);
terminate_with_null(&bar_cmd.string);
terminate_with_null(&hot_directory);
}
CUSTOM_COMMAND_SIG(execute_previous_cli){
String out_buffer, cmd, hot_directory;
out_buffer = make_string_slowly(out_buffer_space);
cmd = make_string_slowly(command_space);
hot_directory = make_string_slowly(hot_directory_space);
if (out_buffer.size > 0 && cmd.size > 0 && hot_directory.size > 0){
push_parameter(app, par_flags, CLI_OverlapWithConflict);
push_parameter(app, par_name, out_buffer.str, out_buffer.size);
push_parameter(app, par_cli_path, hot_directory.str, hot_directory.size);
push_parameter(app, par_cli_command, cmd.str, cmd.size);
exec_command(app, cmdid_command_line);
}
}
CUSTOM_COMMAND_SIG(execute_arbitrary_command){
// NOTE(allen): This isn't a super powerful version of this command, I will expand
// upon it so that it has all the cmdid_* commands by default. However, with this
// as an example you have everything you need to make it work already. You could
// even use app->memory to create a hash table in the start hook.
Query_Bar bar;
char space[1024];
bar.prompt = make_lit_string("Command: ");
bar.string = make_fixed_width_string(space);
if (!query_user_string(app, &bar)) return;
// NOTE(allen): Here I chose to end this query bar because when I call another
// command it might ALSO have query bars and I don't want this one hanging
// around at that point. Since the bar exists on my stack the result of the query
// is still available in bar.string though.
app->end_query_bar(app, &bar, 0);
if (match(bar.string, make_lit_string("open all code"))){
exec_command(app, open_all_code);
}
else if(match(bar.string, make_lit_string("close all code"))){
exec_command(app, close_all_code);
}
else if (match(bar.string, make_lit_string("open menu"))){
exec_command(app, cmdid_open_menu);
}
else if (match(bar.string, make_lit_string("dos lines"))){
exec_command(app, cmdid_eol_dosify);
}
else if (match(bar.string, make_lit_string("nix lines"))){
exec_command(app, cmdid_eol_nixify);
}
else{
app->print_message(app, literal("unrecognized command\n"));
}
}
CUSTOM_COMMAND_SIG(open_in_other){
exec_command(app, cmdid_change_active_panel);
exec_command(app, cmdid_interactive_open);
}
CUSTOM_COMMAND_SIG(build_search){
// NOTE(allen|a3.3): An example of traversing the filesystem through parent
// directories looking for a file, in this case a batch file to execute.
//
//
// Step 1: Grab all of the user memory (or, you know, less if you've got better
// thing to do with some of it). Make a string and store the hot directory in it.
//
// Step 2: app->file_exists queries the file system to see if "<somedir>/build.bat" exists.
// If it does exist several parameters are pushed and cmdid_command_line is executed:
// - par_flags: flags for specifiying behaviors
// CLI_OverlapWithConflict - (on by default) if another CLI is still using the output buffer
// that process is detached from the buffer and this process executes outputing to the buffer
// CLI_AlwaysBindToView - if set, the current view always switches to the output buffer
// even if the output buffer is open in another view
//
// - par_name: the name of the buffer to fill with the output from the process
// - par_buffer_id: the buffer_id of the buffer to to fill with output
// If both are set buffer_id is used and the name is ignored.
// If neither is set the command runs without storing output anywhere.
//
// - par_cli_path: sets the path from which the command is executed
// If this parameter is unset the command runs from the hot directory.
//
// - par_cli_command: sets the actual command to be executed, this can be almost any
// command that you could execute through a command line interface.
// If this parameter is unset the command get's it's command from the range between
// the mark and cursor.
//
// Step 3: If the batch file did not exist change the dir string to the parent directory using
// app->directory_cd. The cd function can also be used to navigate to subdirectories.
// It returns true if it can actually move in the specified direction, and false otherwise.
//
// This doesn't actually change the hot directory of 4coder, it's only effect is to
// modify the string you passed in to reflect the change in directory if that change was possible.
int keep_going = 1;
int old_size;
String dir = make_string(app->memory, 0, app->memory_size);
dir.size = app->directory_get_hot(app, dir.str, dir.memory_size);
while (keep_going){
old_size = dir.size;
append(&dir, "build.bat");
if (app->file_exists(app, dir.str, dir.size)){
dir.size = old_size;
push_parameter(app, par_flags, CLI_OverlapWithConflict);
push_parameter(app, par_name, literal("*compilation*"));
push_parameter(app, par_cli_path, dir.str, dir.size);
if (append(&dir, "build")){
push_parameter(app, par_cli_command, dir.str, dir.size);
exec_command(app, cmdid_command_line);
}
else{
app->clear_parameters(app);
}
return;
}
dir.size = old_size;
if (app->directory_cd(app, dir.str, &dir.size, dir.memory_size, literal("..")) == 0){
keep_going = 0;
}
}
app->print_message(app, literal("couldn't find build.bat\n"));
}
CUSTOM_COMMAND_SIG(auto_tab_line_at_cursor){
View_Summary view = app->get_active_view(app);
push_parameter(app, par_range_start, view.cursor.pos);
push_parameter(app, par_range_end, view.cursor.pos);
push_parameter(app, par_clear_blank_lines, 0);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(auto_tab_whole_file){
Buffer_Summary buffer = get_active_buffer(app);
push_parameter(app, par_range_start, 0);
push_parameter(app, par_range_end, buffer.size);
exec_command(app, cmdid_auto_tab_range);
}
CUSTOM_COMMAND_SIG(write_and_auto_tab){
exec_command(app, write_character);
exec_command(app, auto_tab_line_at_cursor);
}
// NOTE(allen|a4): scroll rule information
//
// The parameters:
// target_x, target_y
// This is where the view would like to be for the purpose of
// following the cursor, doing mouse wheel work, etc.
//
// scroll_x, scroll_y
// These are pointers to where the scrolling actually is. If you bind
// the scroll rule it is you have to update these in some way to move
// the actual location of the scrolling.
//
// view_id
// This corresponds to which view is computing it's new scrolling position.
// This id DOES correspond to the views that View_Summary contains.
// This will always be between 1 and 16 (0 is a null id).
// See below for an example of having state that carries across scroll udpates.
//
// is_new_target
// If the target of the view is different from the last target in either x or y
// this is true, otherwise it is false.
//
// The return:
// Should be true if and only if scroll_x or scroll_y are changed.
//
// Don't try to use the app pointer in a scroll rule, you're asking for trouble.
//
// If you don't bind scroll_rule, nothing bad will happen, yo will get default
// 4coder scrolling behavior.
//
struct Scroll_Velocity{
float x, y;
};
Scroll_Velocity scroll_velocity_[16] = {0};
Scroll_Velocity *scroll_velocity = scroll_velocity_ - 1;
static int
smooth_camera_step(float target, float *current, float *vel, float S, float T){
int result = 0;
float curr = *current;
float v = *vel;
if (curr != target){
if (curr > target - .1f && curr < target + .1f){
curr = target;
v = 1.f;
}
else{
float L = curr + T*(target - curr);
int sign = (target > curr) - (target < curr);
float V = curr + sign*v;
if (sign > 0) curr = (L<V)?(L):(V);
else curr = (L>V)?(L):(V);
if (curr == V){
v *= S;
}
}
*current = curr;
*vel = v;
result = 1;
}
return result;
}
SCROLL_RULE_SIG(smooth_scroll_rule){
Scroll_Velocity *velocity = scroll_velocity + view_id;
int result = 0;
if (velocity->x == 0.f){
velocity->x = 1.f;
velocity->y = 1.f;
}
if (smooth_camera_step(target_y, scroll_y, &velocity->y, 80.f, 1.f/2.f)){
result = 1;
}
if (smooth_camera_step(target_x, scroll_x, &velocity->x, 80.f, 1.f/2.f)){
result = 1;
}
return(result);
}
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