/*
* Mr. 4th Dimention - Allen Webster
*
* 24.03.2018
*
* Code wrapping logic
*
*/
// TOP
internal void
wrap_state_init(System_Functions *system, Code_Wrap_State *state, Editing_File *file, Font_Pointers font){
state->token_array = file->state.token_array;
state->token_ptr = state->token_array.tokens;
state->end_token = state->token_ptr + state->token_array.count;
state->line_starts = file->state.buffer.line_starts;
state->line_count = file->state.buffer.line_count;
state->next_line_start = state->line_starts[1];
Gap_Buffer *buffer = &file->state.buffer;
i32 size = buffer_size(buffer);
buffer_stringify_loop(&state->stream, buffer, 0, size);
state->size = size;
state->i = 0;
state->font = font;
state->tab_indent_amount = font_get_glyph_advance(system, font.settings, font.metrics, font.pages, '\t');
state->byte_advance = font.metrics->byte_advance;
state->tran = null_buffer_translating_state;
}
internal void
wrap_state_set_top(Code_Wrap_State *state, f32 line_shift){
if (state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top] > line_shift){
state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top] = line_shift;
}
}
internal Code_Wrap_Step
wrap_state_consume_token(System_Functions *system, Font_Pointers font, Code_Wrap_State *state, i32 fixed_end_point){
Code_Wrap_Step result = {0};
i32 i = state->i;
result.position_start = i;
Cpp_Token token = {0};
token.start = state->size;
if (state->token_ptr < state->end_token){
token = *state->token_ptr;
}
if (state->consume_newline){
++i;
state->x = 0;
state->consume_newline = 0;
}
if (state->in_pp_body){
if (!(token.flags & CPP_TFLAG_PP_BODY)){
state->in_pp_body = false;
state->wrap_x = state->plane_wrap_x;
}
}
if (!state->in_pp_body){
if (token.flags & CPP_TFLAG_PP_DIRECTIVE){
state->in_pp_body = true;
state->plane_wrap_x = state->wrap_x;
state->wrap_x = null_wrap_x;
}
}
b32 skipping_whitespace = false;
if (i >= state->next_line_start){
state->x = state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top];
state->x = state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top];
skipping_whitespace = true;
}
// TODO(allen): exponential search this shit!
for (;i >= state->next_line_start;){
state->next_line_start = state->size;
if (state->line_index < state->line_count){
++state->line_index;
if (state->line_index + 1 < state->line_count){
state->next_line_start = state->line_starts[state->line_index + 1];
}
}
else{
break;
}
}
i32 line_start = state->size;
if (state->line_index < 0){
line_start = 0;
}
else if (state->line_index < state->line_count){
line_start = state->line_starts[state->line_index];
}
b32 still_looping = 0;
i32 end = token.start + token.size;
if (fixed_end_point >= 0 && end > fixed_end_point){
end = fixed_end_point;
}
i = clamp_bottom(line_start, i);
if (i == line_start){
skipping_whitespace = true;
}
b32 recorded_start_x = false;
do{
for (; i < state->stream.end; ++i){
if (!(i < end)){
goto doublebreak;
}
u8 ch = (u8)state->stream.data[i];
translating_fully_process_byte(system, font, &state->tran, ch, i, state->size, &state->emits);
for (TRANSLATION_EMIT_LOOP(state->J, state->emits)){
TRANSLATION_GET_STEP(state->step, state->behavior, state->J, state->emits);
if (state->behavior.do_newline){
state->consume_newline = 1;
goto doublebreak;
}
else if(state->behavior.do_number_advance || state->behavior.do_codepoint_advance){
u32 n = state->step.value;
f32 adv = 0;
if (state->behavior.do_codepoint_advance){
adv = font_get_glyph_advance(system, state->font.settings, state->font.metrics, state->font.pages, n);
if (n != ' ' && n != '\t'){
skipping_whitespace = false;
}
}
else{
adv = state->byte_advance;
skipping_whitespace = false;
}
if (!skipping_whitespace){
if (!recorded_start_x){
result.start_x = state->x;
recorded_start_x = true;
}
state->x += adv;
}
}
}
}
still_looping = buffer_stringify_next(&state->stream);
}while(still_looping);
doublebreak:;
state->i = i;
b32 consume_token = false;
if (state->token_ptr < state->end_token && i >= token.start + token.size){
consume_token = true;
}
result.this_token = state->token_ptr;
if (consume_token){
Assert(state->token_ptr < state->end_token);
switch (state->token_ptr->type){
case CPP_TOKEN_BRACE_OPEN:
{
state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top] += state->tab_indent_amount;
}break;
case CPP_TOKEN_BRACE_CLOSE:
{
state->wrap_x.paren_nesting[state->wrap_x.paren_safe_top] -= state->tab_indent_amount;
}break;
case CPP_TOKEN_PARENTHESE_OPEN:
case CPP_TOKEN_BRACKET_OPEN:
{
++state->wrap_x.paren_top;
i32 top = state->wrap_x.paren_top;
if (top >= ArrayCount(state->wrap_x.paren_nesting)){
top = ArrayCount(state->wrap_x.paren_nesting) - 1;
}
state->wrap_x.paren_safe_top = top;
state->wrap_x.paren_nesting[top] = state->x;
}break;
case CPP_TOKEN_PARENTHESE_CLOSE:
case CPP_TOKEN_BRACKET_CLOSE:
{
--state->wrap_x.paren_top;
if (state->wrap_x.paren_top < 0){
state->wrap_x.paren_top = 0;
}
i32 top = state->wrap_x.paren_top;
if (top >= ArrayCount(state->wrap_x.paren_nesting)){
top = ArrayCount(state->wrap_x.paren_nesting) - 1;
}
state->wrap_x.paren_safe_top = top;
}break;
}
++state->token_ptr;
if (state->token_ptr > state->end_token){
state->token_ptr = state->end_token;
}
}
result.position_end = state->i;
result.final_x = state->x;
if (!recorded_start_x){
result.start_x = state->x;
recorded_start_x = true;
}
return(result);
}
internal i32
stickieness_guess(Cpp_Token_Type type, Cpp_Token_Type other_type, u16 flags, u16 other_flags, b32 on_left){
i32 guess = 0;
b32 is_words = 0, other_is_words = 0;
if (type == CPP_TOKEN_IDENTIFIER || (type >= CPP_TOKEN_KEY_TYPE && type <= CPP_TOKEN_KEY_OTHER)){
is_words = 1;
}
if (other_type == CPP_TOKEN_IDENTIFIER || (other_type >= CPP_TOKEN_KEY_TYPE && other_type <= CPP_TOKEN_KEY_OTHER)){
other_is_words = 1;
}
b32 is_operator = 0, other_is_operator = 0;
if (flags & CPP_TFLAG_IS_OPERATOR){
is_operator = 1;
}
if (other_flags & CPP_TFLAG_IS_OPERATOR){
other_is_operator = 1;
}
i32 operator_side_bias = 70*(!on_left);
if (is_words && other_is_words){
guess = 200;
}
else if (type == CPP_TOKEN_PARENTHESE_OPEN){
if (on_left){
guess = 100;
}
else{
if (other_is_words){
guess = 100;
}
else{
guess = 0;
}
}
}
else if (type == CPP_TOKEN_SEMICOLON){
if (on_left){
guess = 0;
}
else{
guess = 1000;
}
}
else if (type == CPP_TOKEN_COMMA){
guess = 20;
}
else if (type == CPP_TOKEN_COLON ||
type == CPP_TOKEN_PARENTHESE_CLOSE ||
type == CPP_TOKEN_BRACKET_OPEN ||
type == CPP_TOKEN_BRACKET_CLOSE){
if (on_left){
guess = 20;
if (other_is_words){
guess = 100;
}
}
else{
guess = 100;
}
}
else if (type == CPP_PP_DEFINED){
if (on_left){
guess = 100;
}
else{
guess = 0;
}
}
else if (type == CPP_TOKEN_SCOPE){
guess = 90;
}
else if (type == CPP_TOKEN_MINUS){
if (on_left){
guess = 80;
}
else{
guess = 60;
}
}
else if (type == CPP_TOKEN_DOT ||
type == CPP_TOKEN_ARROW){
guess = 200;
}
else if (type == CPP_TOKEN_NOT ||
type == CPP_TOKEN_TILDE){
if (on_left){
guess = 80;
}
else{
guess = 20;
}
}
else if (type == CPP_TOKEN_INCREMENT ||
type == CPP_TOKEN_DECREMENT ||
type == CPP_TOKEN_STAR ||
type == CPP_TOKEN_AMPERSAND ||
(type >= CPP_TOKEN_POSTINC &&
type <= CPP_TOKEN_DELETE_ARRAY)){
guess = 80;
if (!on_left && other_is_operator){
guess = 20;
}
}
else if (type >= CPP_TOKEN_MUL && type <= CPP_TOKEN_MOD){
guess = 70;
}
else if (type == CPP_TOKEN_PLUS){
guess = 60 + operator_side_bias;
}
else if (type >= CPP_TOKEN_LSHIFT && type <= CPP_TOKEN_RSHIFT){
guess = 50;
}
else if (type >= CPP_TOKEN_LESS && type <= CPP_TOKEN_NOTEQ){
guess = 40 + operator_side_bias;
}
else if (type >= CPP_TOKEN_BIT_XOR && type <= CPP_TOKEN_BIT_OR){
guess = 40;
}
else if (type >= CPP_TOKEN_AND && type <= CPP_TOKEN_OR){
guess = 30 + operator_side_bias;
}
else if (type >= CPP_TOKEN_TERNARY_QMARK && type <= CPP_TOKEN_COLON){
guess = 20 + operator_side_bias;
}
else if (type == CPP_TOKEN_THROW){
if (on_left){
guess = 100;
}
else{
guess = 0;
}
}
else if (type >= CPP_TOKEN_EQ && type <= CPP_TOKEN_XOREQ){
guess = 15 + operator_side_bias;
}
return(guess);
}
internal Wrap_Current_Shift
get_current_shift(Code_Wrap_State *wrap_state, i32 next_line_start){
Wrap_Current_Shift result = {0};
result.shift = wrap_state->wrap_x.paren_nesting[wrap_state->wrap_x.paren_safe_top];
Cpp_Token next_token = {0};
if (wrap_state->token_ptr < wrap_state->end_token){
next_token = *wrap_state->token_ptr;
}
if (wrap_state->token_ptr > wrap_state->token_array.tokens){
Cpp_Token prev_token = *(wrap_state->token_ptr-1);
if (wrap_state->wrap_x.paren_safe_top != 0 && prev_token.type == CPP_TOKEN_PARENTHESE_OPEN){
result.shift = wrap_state->wrap_x.paren_nesting[wrap_state->wrap_x.paren_safe_top-1] + wrap_state->tab_indent_amount;
result.adjust_top_to_this = 1;
}
f32 statement_continuation_indent = 0.f;
if (result.shift != 0.f && wrap_state->wrap_x.paren_safe_top == 0){
if (!(prev_token.flags & (CPP_TFLAG_PP_DIRECTIVE|CPP_TFLAG_PP_BODY))){
switch (prev_token.type){
case CPP_TOKEN_BRACKET_OPEN:
case CPP_TOKEN_BRACE_OPEN:
case CPP_TOKEN_BRACE_CLOSE:
case CPP_TOKEN_SEMICOLON:
case CPP_TOKEN_COLON:
case CPP_TOKEN_COMMA:
case CPP_TOKEN_COMMENT: break;
default: statement_continuation_indent += wrap_state->tab_indent_amount; break;
}
}
}
switch (next_token.type){
case CPP_TOKEN_BRACE_CLOSE: case CPP_TOKEN_BRACE_OPEN: break;
default: result.shift += statement_continuation_indent; break;
}
}
if (next_token.start < next_line_start){
if (next_token.flags & CPP_TFLAG_PP_DIRECTIVE){
result.shift = 0;
}
else{
switch (next_token.type){
case CPP_TOKEN_BRACE_CLOSE:
{
if (wrap_state->wrap_x.paren_safe_top == 0){
result.shift -= wrap_state->tab_indent_amount;
}
}break;
}
}
}
result.shift = clamp_bottom(0.f, result.shift);
return(result);
}
internal void
file_measure_wraps(System_Functions *system, Mem_Options *mem, Editing_File *file, Font_Pointers font){
Heap *heap = &mem->heap;
Partition *part = &mem->part;
Temp_Memory temp = begin_temp_memory(part);
file_allocate_wraps_as_needed(heap, file);
file_allocate_indents_as_needed(heap, file, file->state.buffer.line_count);
file_allocate_wrap_positions_as_needed(heap, file, file->state.buffer.line_count);
Buffer_Measure_Wrap_Params params;
params.buffer = &file->state.buffer;
params.wrap_line_index = file->state.wrap_line_index;
params.system = system;
params.font = font;
params.virtual_white = file->settings.virtual_white;
f32 width = (f32)file->settings.display_width;
f32 minimum_base_width = (f32)file->settings.minimum_base_display_width;
i32 size = buffer_size(params.buffer);
Buffer_Measure_Wrap_State state = {0};
Buffer_Layout_Stop stop = {0};
f32 edge_tolerance = 50.f;
edge_tolerance = clamp_top(edge_tolerance, 50.f);
f32 current_line_shift = 0.f;
b32 do_wrap = 0;
i32 wrap_unit_end = 0;
i32 wrap_position_index = 0;
file->state.wrap_positions[wrap_position_index++] = 0;
Code_Wrap_State wrap_state = {0};
b32 use_tokens = false;
Wrap_Indent_Pair *wrap_indent_marks = 0;
Potential_Wrap_Indent_Pair *potential_marks = 0;
i32 max_wrap_indent_mark = 0;
if (params.virtual_white && file->state.tokens_complete && !file->state.still_lexing){
wrap_state_init(system, &wrap_state, file, font);
use_tokens = true;
potential_marks = push_array(part, Potential_Wrap_Indent_Pair, floor32(width));
max_wrap_indent_mark = partition_remaining(part)/sizeof(Wrap_Indent_Pair);
wrap_indent_marks = push_array(part, Wrap_Indent_Pair, max_wrap_indent_mark);
}
i32 real_count = 0;
i32 potential_count = 0;
i32 stage = 0;
do{
stop = buffer_measure_wrap_y(&state, params, current_line_shift, do_wrap, wrap_unit_end);
switch (stop.status){
case BLStatus_NeedWrapDetermination:
{
if (use_tokens){
if (stage == 0){
do_wrap = 0;
wrap_unit_end = wrap_indent_marks[stage+1].wrap_position;
++stage;
}
else{
do_wrap = 1;
wrap_unit_end = wrap_indent_marks[stage+1].wrap_position;
file_allocate_wrap_positions_as_needed(heap, file, wrap_position_index);
file->state.wrap_positions[wrap_position_index++] = stop.pos;
}
}
else{
Translation_State tran = {0};
Translation_Emits emits = {0};
Gap_Buffer_Stream stream = {0};
i32 word_stage = 0;
i32 i = stop.pos;
f32 x = stop.x;
f32 self_x = 0;
i32 wrap_end_result = size;
if (buffer_stringify_loop(&stream, params.buffer, i, size)){
b32 still_looping = false;
do{
for (; i < stream.end; ++i){
{
u8 ch = stream.data[i];
translating_fully_process_byte(system, font, &tran, ch, i, size, &emits);
}
for (TRANSLATION_DECL_EMIT_LOOP(J, emits)){
TRANSLATION_DECL_GET_STEP(step, behavior, J, emits);
u32 codepoint = step.value;
switch (word_stage){
case 0:
{
if (codepoint_is_whitespace(codepoint)){
word_stage = 1;
}
else{
f32 adv = font_get_glyph_advance(params.system, params.font.settings, params.font.metrics, params.font.pages, codepoint);
x += adv;
self_x += adv;
if (self_x > width){
wrap_end_result = step.i;
goto doublebreak;
}
}
}break;
case 1:
{
if (!codepoint_is_whitespace(codepoint)){
wrap_end_result = step.i;
goto doublebreak;
}
}break;
}
}
}
still_looping = buffer_stringify_next(&stream);
}while(still_looping);
}
doublebreak:;
wrap_unit_end = wrap_end_result;
if (x > width){
do_wrap = 1;
file_allocate_wrap_positions_as_needed(heap, file, wrap_position_index);
file->state.wrap_positions[wrap_position_index++] = stop.pos;
}
else{
do_wrap = 0;
}
}
}break;
case BLStatus_NeedWrapLineShift:
case BLStatus_NeedLineShift:
{
f32 current_width = width;
if (use_tokens){
Code_Wrap_State original_wrap_state = wrap_state;
i32 next_line_start = buffer_size(params.buffer);
if (stop.line_index+1 < params.buffer->line_count){
next_line_start = params.buffer->line_starts[stop.line_index+1];
}
f32 base_adjusted_width = wrap_state.wrap_x.base_x + minimum_base_width;
if (minimum_base_width != 0 && current_width < base_adjusted_width){
current_width = base_adjusted_width;
}
if (stop.status == BLStatus_NeedLineShift){
real_count = 0;
potential_count = 0;
stage = 0;
Wrap_Current_Shift current_shift = get_current_shift(&wrap_state, next_line_start);
if (current_shift.adjust_top_to_this){
wrap_state_set_top(&wrap_state, current_shift.shift);
}
wrap_indent_marks[real_count].wrap_position = 0;
wrap_indent_marks[real_count].line_shift =current_shift.shift;
++real_count;
wrap_state.wrap_x.base_x = wrap_state.wrap_x.paren_nesting[0];
for (; wrap_state.token_ptr < wrap_state.end_token; ){
Code_Wrap_Step step = {0};
b32 emit_comment_position = false;
b32 first_word = true;
if (wrap_state.token_ptr->type == CPP_TOKEN_COMMENT || wrap_state.token_ptr->type == CPP_TOKEN_STRING_CONSTANT){
i32 i = wrap_state.token_ptr->start;
i32 end_i = i + wrap_state.token_ptr->size;
if (i < wrap_state.i){
i = wrap_state.i;
}
if (end_i > wrap_state.next_line_start){
end_i = wrap_state.next_line_start;
}
f32 x = wrap_state.x;
step.position_start = i;
step.start_x = x;
step.this_token = wrap_state.token_ptr;
Gap_Buffer_Stream stream = {0};
Translation_State tran = {0};
Translation_Emits emits = {0};
Potential_Wrap_Indent_Pair potential_wrap = {0};
potential_wrap.wrap_position = i;
potential_wrap.line_shift = x;
potential_wrap.wrappable_score = 5;
potential_wrap.wrap_x = x;
potential_wrap.adjust_top_to_this = 0;
if (buffer_stringify_loop(&stream, params.buffer, i, end_i)){
b32 still_looping = true;
while(still_looping){
for (; i < stream.end; ++i){
{
u8 ch = stream.data[i];
translating_fully_process_byte(system, font, &tran, ch, i, end_i, &emits);
}
for (TRANSLATION_DECL_EMIT_LOOP(J, emits)){
TRANSLATION_DECL_GET_STEP(buffer_step, behav, J, emits);
if (!codepoint_is_whitespace(buffer_step.value)){
i = buffer_step.i;
goto doublebreak_stage_vspace;
}
}
}
still_looping = buffer_stringify_next(&stream);
}
doublebreak_stage_vspace:;
do{
i32 pos_end_i = end_i;
while (still_looping){
for (; i < stream.end; ++i){
{
u8 ch = stream.data[i];
translating_fully_process_byte(system, font, &tran, ch, i, end_i, &emits);
}
for (TRANSLATION_DECL_EMIT_LOOP(J, emits)){
TRANSLATION_DECL_GET_STEP(buffer_step, behav, J, emits);
if (codepoint_is_whitespace(buffer_step.value)){
pos_end_i = buffer_step.i;
goto doublebreak_stage1;
}
f32 adv = font_get_glyph_advance(params.system, params.font.settings, params.font.metrics, params.font.pages, buffer_step.value);
x += adv;
if (!first_word && x > current_width){
pos_end_i = buffer_step.i;
emit_comment_position = true;
goto doublebreak_stage1;
}
}
}
still_looping = buffer_stringify_next(&stream);
}
doublebreak_stage1:;
first_word = 0;
if (emit_comment_position){
step.position_end = pos_end_i;
step.final_x = x;
goto finished_comment_split;
}
while(still_looping){
for (; i < stream.end; ++i){
{
u8 ch = stream.data[i];
translating_fully_process_byte(system, font, &tran, ch, i, end_i, &emits);
}
for (TRANSLATION_DECL_EMIT_LOOP(J, emits)){
TRANSLATION_DECL_GET_STEP(buffer_step, behav, J, emits);
if (!codepoint_is_whitespace(buffer_step.value)){
pos_end_i = buffer_step.i;
goto doublebreak_stage2;
}
f32 adv = font_get_glyph_advance(params.system, params.font.settings, params.font.metrics, params.font.pages, buffer_step.value);
x += adv;
}
}
still_looping = buffer_stringify_next(&stream);
}
doublebreak_stage2:;
potential_wrap.wrap_position = pos_end_i;
potential_wrap.wrap_x = x;
}while(still_looping);
}
finished_comment_split:;
if (emit_comment_position){
potential_marks[potential_count] = potential_wrap;
++potential_count;
}
}
if (!emit_comment_position){
step = wrap_state_consume_token(system, font, &wrap_state, next_line_start);
}
b32 need_to_choose_a_wrap = false;
if (step.final_x > current_width){
need_to_choose_a_wrap = true;
}
current_shift = get_current_shift(&wrap_state, next_line_start);
b32 next_token_is_on_line = false;
if (wrap_state.token_ptr < wrap_state.end_token){
if (wrap_state.token_ptr->start < next_line_start){
next_token_is_on_line = true;
}
}
i32 next_wrap_position = step.position_end;
f32 wrap_x = step.final_x;
if (next_token_is_on_line){
if (wrap_state.token_ptr < wrap_state.end_token){
i32 pos_i = wrap_state.token_ptr->start;
if (pos_i > step.position_start && next_wrap_position < pos_i){
next_wrap_position = pos_i;
}
}
}
if (!need_to_choose_a_wrap){
i32 wrappable_score = 1;
Cpp_Token *this_token = step.this_token;
Cpp_Token *next_token = 0;
if (wrap_state.token_ptr < wrap_state.end_token){
next_token = wrap_state.token_ptr;
}
Cpp_Token_Type this_type = this_token->type;
Cpp_Token_Type next_type = CPP_TOKEN_JUNK;
u16 this_flags = this_token->flags;
u16 next_flags = 0;
if (this_token == next_token || !next_token_is_on_line){
next_token = 0;
}
if (next_token){
next_type = next_token->type;
next_flags = next_token->flags;
}
i32 this_stickieness = stickieness_guess(this_type, next_type, this_flags, next_flags, 1);
i32 next_stickieness = 0;
if (next_token){
next_stickieness = stickieness_guess(next_type, this_type, next_flags, this_flags, 0);
}
i32 heap_stickieness = this_stickieness;
if (heap_stickieness < next_stickieness){
heap_stickieness = next_stickieness;
}
if (wrap_state.wrap_x.paren_top != 0 && this_type == CPP_TOKEN_COMMA){
heap_stickieness = 0;
}
wrappable_score = 64*50;
wrappable_score += 101 - heap_stickieness - wrap_state.wrap_x.paren_safe_top*80;
potential_marks[potential_count].wrap_position = next_wrap_position;
potential_marks[potential_count].line_shift = current_shift.shift;
potential_marks[potential_count].wrappable_score = wrappable_score;
potential_marks[potential_count].wrap_x = wrap_x;
potential_marks[potential_count].adjust_top_to_this = current_shift.adjust_top_to_this;
++potential_count;
}
if (need_to_choose_a_wrap){
if (potential_count == 0){
wrap_indent_marks[real_count].wrap_position = next_wrap_position;
wrap_indent_marks[real_count].line_shift = current_shift.shift;
++real_count;
}
else{
i32 i = 0, best_i = 0;
i32 best_score = -1;
f32 best_x_shift = 0;
f32 x_gain_threshold = 18.f;
for (; i < potential_count; ++i){
i32 this_score = potential_marks[i].wrappable_score;
f32 x_shift = potential_marks[i].wrap_x - potential_marks[i].line_shift;
f32 x_shift_adjusted = x_shift - x_gain_threshold;
f32 x_left_over = step.final_x - x_shift;
if (x_shift_adjusted < 0){
this_score = 0;
}
else if (x_left_over <= x_gain_threshold){
this_score = 1;
}
if (this_score > best_score){
best_score = this_score;
best_x_shift = x_shift;
best_i = i;
}
else if (this_score == best_score && x_shift > best_x_shift){
best_x_shift = x_shift;
best_i = i;
}
}
i32 wrap_position = potential_marks[best_i].wrap_position;
f32 line_shift = potential_marks[best_i].line_shift;
b32 adjust_top_to_this = potential_marks[best_i].adjust_top_to_this;
wrap_indent_marks[real_count].wrap_position = wrap_position;
wrap_indent_marks[real_count].line_shift = line_shift;
++real_count;
potential_count = 0;
wrap_state = original_wrap_state;
for (;;){
step = wrap_state_consume_token(system, font, &wrap_state, wrap_position);
if (step.position_end >= wrap_position){
break;
}
}
wrap_state.x = line_shift;
wrap_state.i = wrap_position;
if (adjust_top_to_this){
wrap_state_set_top(&wrap_state, line_shift);
}
original_wrap_state = wrap_state;
}
}
if (step.position_end >= next_line_start-1){
break;
}
}
wrap_indent_marks[real_count].wrap_position = next_line_start;
wrap_indent_marks[real_count].line_shift = 0;
++real_count;
for (i32 l = 0; wrap_state.i < next_line_start && l < 3; ++l){
wrap_state_consume_token(system, font, &wrap_state, next_line_start);
}
}
current_line_shift = wrap_indent_marks[stage].line_shift;
if (stage > 0){
++stage;
}
current_line_shift = clamp_bottom(0.f, current_line_shift);
}
else{
current_line_shift = 0.f;
}
current_line_shift = clamp_top(current_line_shift, current_width - edge_tolerance);
if (stop.wrap_line_index >= file->state.line_indent_max){
file_allocate_indents_as_needed(heap, file, stop.wrap_line_index);
}
file->state.line_indents[stop.wrap_line_index] = current_line_shift;
file->state.wrap_line_count = stop.wrap_line_index;
}break;
}
}while(stop.status != BLStatus_Finished);
++file->state.wrap_line_count;
file_allocate_wrap_positions_as_needed(heap, file, wrap_position_index);
file->state.wrap_positions[wrap_position_index++] = size;
file->state.wrap_position_count = wrap_position_index;
end_temp_memory(temp);
}
// BOTTOM