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partially added line_shifting to the cursor seeking system

This commit is contained in:
Allen Webster 2016-09-23 19:25:06 -04:00
parent 5be1cd9588
commit a29af32a42
2 changed files with 250 additions and 253 deletions
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148
4ed_file_view.cpp
View File

@ -384,84 +384,6 @@ view_cursor_limits(View *view){
return(limits);
}
#if 0
inline Full_Cursor
view_compute_cursor_from_pos(View *view, i32 pos){
Editing_File *file = view->file_data.file;
Models *models = view->persistent.models;
Render_Font *font = get_font_info(models->font_set, file->settings.font_id)->font;
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.seek = seek_pos(pos);
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
Full_Cursor result = buffer_cursor_seek(params);
return(result);
}
inline Full_Cursor
view_compute_cursor_from_unwrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){
Editing_File *file = view->file_data.file;
Models *models = view->persistent.models;
Render_Font *font = get_font_info(models->font_set, file->settings.font_id)->font;
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.seek = seek_unwrapped_xy(seek_x, seek_y, round_down);
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
Full_Cursor result = buffer_cursor_seek(params);
return(result);
}
internal Full_Cursor
view_compute_cursor_from_wrapped_xy(View *view, f32 seek_x, f32 seek_y, b32 round_down = 0){
Editing_File *file = view->file_data.file;
Models *models = view->persistent.models;
Render_Font *font = get_font_info(models->font_set, file->settings.font_id)->font;
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.seek = seek_wrapped_xy(seek_x, seek_y, round_down);
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
Full_Cursor result = buffer_cursor_seek(params);
return(result);
}
internal Full_Cursor
view_compute_cursor_from_line_char(View *view, i32 line, i32 character){
Editing_File *file = view->file_data.file;
Models *models = view->persistent.models;
Render_Font *font = get_font_info(models->font_set, file->settings.font_id)->font;
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.seek = seek_line_char(line, character);
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
Full_Cursor result = buffer_cursor_seek(params);
return(result);
}
#endif
inline Full_Cursor
view_compute_cursor(View *view, Buffer_Seek seek){
Editing_File *file = view->file_data.file;
@ -469,15 +391,19 @@ view_compute_cursor(View *view, Buffer_Seek seek){
Render_Font *font = get_font_info(models->font_set, file->settings.font_id)->font;
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.seek = seek;
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
params.buffer = &file->state.buffer;
params.seek = seek;
params.max_width = view_file_display_width(view);
params.font_height = (f32)font->height;
params.adv = font->advance_data;
params.wraps = file->state.wraps;
params.virtual_white = 0;
Full_Cursor result = buffer_cursor_seek(params);
return (result);
Buffer_Cursor_Seek_State state = {0};
Full_Cursor result;
buffer_cursor_seek(&state, params, 0, &result);
return(result);
}
inline Full_Cursor
@ -4797,23 +4723,12 @@ draw_file_loaded(View *view, i32_Rect rect, b32 is_active, Render_Target *target
// to the gui system.
scroll_y += view->widget_height;
Full_Cursor render_cursor = {0};
{
Buffer_Cursor_Seek_Params params;
params.buffer = &file->state.buffer;
params.max_width = max_x;
params.font_height = (f32)line_height;
params.adv = advance_data;
params.wraps = file->state.wraps;
if (!file->settings.unwrapped_lines){
params.seek = seek_wrapped_xy(0, scroll_y, 0);
}
else{
params.seek = seek_unwrapped_xy(0, scroll_y, 0);
}
render_cursor = buffer_cursor_seek(params);
Full_Cursor render_cursor;
if (!file->settings.unwrapped_lines){
render_cursor = view_compute_cursor(view, seek_wrapped_xy(0, scroll_y, 0));
}
else{
render_cursor = view_compute_cursor(view, seek_unwrapped_xy(0, scroll_y, 0));
}
view->edit_pos->scroll_i = render_cursor.pos;
@ -4838,12 +4753,16 @@ draw_file_loaded(View *view, i32_Rect rect, b32 is_active, Render_Target *target
params.wrapped = wrapped;
params.font_height = (f32)line_height;
params.adv = advance_data;
params.virtual_white = 0;
params.virtual_white = 1;
Buffer_Render_State state = {0};
Buffer_Render_Stop stop = {0};
Buffer_Layout_Stop stop;
f32 line_shift = (render_cursor.line%4)*15.f + 30.f;
while (line_shift >= 60.f){
line_shift -= 60.f;
}
f32 line_shift = 0;
f32 edge_tolerance = 50.f;
if (edge_tolerance > params.width){
@ -4851,15 +4770,22 @@ draw_file_loaded(View *view, i32_Rect rect, b32 is_active, Render_Target *target
}
do{
if (line_shift > params.width - edge_tolerance){
line_shift = params.width - edge_tolerance;
f32 this_line_shift = line_shift;
if (this_line_shift > params.width - edge_tolerance){
this_line_shift = params.width - edge_tolerance;
}
stop = buffer_render_data(&state, params, line_shift);
stop = buffer_render_data(&state, params, this_line_shift);
switch (stop.status){
case RenderStatus_NeedLineShift: break;
case BLStatus_NeedWrapLineShift:
case BLStatus_NeedLineShift:
line_shift += 15.f;
if (line_shift >= 60.f){
line_shift -= 60.f;
}
break;
}
}while(stop.status != RenderStatus_Finished);
}while(stop.status != BLStatus_Finished);
}
i32 cursor_begin = 0, cursor_end = 0;

355
buffer/4coder_buffer_abstract.cpp
View File

@ -441,29 +441,65 @@ struct Buffer_Cursor_Seek_Params{
f32 font_height;
f32 *adv;
f32 *wraps;
b32 virtual_white;
};
internal_4tech Full_Cursor
buffer_cursor_seek(Buffer_Cursor_Seek_Params params){
i32 size = buffer_size(params.buffer);
struct Buffer_Cursor_Seek_State{
Full_Cursor cursor;
Full_Cursor prev_cursor;
Buffer_Stream_Type stream;
b32 still_looping;
i32 i;
i32 size;
b32 xy_seek;
u8 ch;
Full_Cursor cursor = {0};
i32 __pc__;
};
// duff-routine defines
#define DrCase(PC) case PC: goto resumespot_##PC
#define DrYield(PC, n) { *S_ptr = S; S_ptr->__pc__ = PC; return(n); resumespot_##PC:; }
#define DrReturn(n) { *S_ptr = S; S_ptr->__pc__ = -1; return(n); }
enum{
BLStatus_Finished,
BLStatus_NeedWrapLineShift,
BLStatus_NeedLineShift
};
struct Buffer_Layout_Stop{
u32 status;
i32 line_index;
i32 pos;
};
internal_4tech Buffer_Layout_Stop
buffer_cursor_seek(Buffer_Cursor_Seek_State *S_ptr, Buffer_Cursor_Seek_Params params,
f32 line_shift, Full_Cursor *cursor_out){
Buffer_Cursor_Seek_State S = *S_ptr;
Buffer_Layout_Stop S_stop;
switch (S.__pc__){
DrCase(1);
}
S.xy_seek = (params.seek.type == buffer_seek_wrapped_xy || params.seek.type == buffer_seek_unwrapped_xy);
S.size = buffer_size(params.buffer);
// Get cursor hint
switch (params.seek.type){
case buffer_seek_pos:
{
if (params.seek.pos > size){
params.seek.pos = size;
if (params.seek.pos > S.size){
params.seek.pos = S.size;
}
if (params.seek.pos < 0){
params.seek.pos = 0;
}
i32 line_index = buffer_get_line_index_range(params.buffer, params.seek.pos, 0, params.buffer->line_count);
cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
if (cursor.pos >= params.seek.pos){
goto buffer_cursor_seek_end;
}
S.cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
}break;
case buffer_seek_line_char:
@ -476,10 +512,7 @@ buffer_cursor_seek(Buffer_Cursor_Seek_Params params){
line_index = 0;
}
cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
if (cursor.line >= params.seek.line && cursor.character >= params.seek.character){
goto buffer_cursor_seek_end;
}
S.cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
}break;
case buffer_seek_unwrapped_xy:
@ -492,10 +525,7 @@ buffer_cursor_seek(Buffer_Cursor_Seek_Params params){
line_index = 0;
}
cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
if (params.seek.x == 0 && cursor.unwrapped_y >= params.seek.y){
goto buffer_cursor_seek_end;
}
S.cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
}break;
case buffer_seek_wrapped_xy:
@ -503,122 +533,190 @@ buffer_cursor_seek(Buffer_Cursor_Seek_Params params){
i32 line_index = buffer_get_line_index_from_wrapped_y(params.wraps, params.seek.y,
params.font_height, 0, params.buffer->line_count);
cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
if (params.seek.x == 0 && cursor.wrapped_y >= params.seek.y){
goto buffer_cursor_seek_end;
}
S.cursor = make_cursor_hint(line_index, params.buffer->line_starts, params.wraps, params.font_height);
}break;
default: InvalidCodePath;
}
if (params.adv){
Buffer_Stream_Type stream = {0};
i32 i = cursor.pos;
// Get the initial line shift.
// Adjust the non-screen based coordinates to point to the first
// non-virtual character of the line.
if (params.virtual_white){
S_stop.status = BLStatus_NeedLineShift;
S_stop.line_index = S.cursor.line-1;
S_stop.pos = S.cursor.pos;
DrYield(1, S_stop);
b32 xy_seek = (params.seek.type == buffer_seek_wrapped_xy || params.seek.type == buffer_seek_unwrapped_xy);
S.cursor.unwrapped_x += line_shift;
S.cursor.wrapped_x += line_shift;
stream.use_termination_character = 1;
stream.terminator = 0;
if (buffer_stringify_loop(&stream, params.buffer, i, size)){
b32 still_looping = 0;
S.stream.use_termination_character = 1;
S.stream.terminator = '\n';
if (buffer_stringify_loop(&S.stream, params.buffer, S.i, S.size)){
do{
for (; i < stream.end; ++i){
u8 ch = (u8)stream.data[i];
for (; S.cursor.pos < S.stream.end; ++S.cursor.pos){
S.ch = (u8)S.stream.data[S.i];
Full_Cursor prev_cursor = cursor;
switch (ch){
case '\n':
++cursor.line;
cursor.unwrapped_y += params.font_height;
cursor.wrapped_y += params.font_height;
cursor.character = 1;
cursor.unwrapped_x = 0;
cursor.wrapped_x = 0;
break;
default:
{
f32 ch_width = params.adv[ch];
if (cursor.wrapped_x + ch_width > params.max_width){
cursor.wrapped_y += params.font_height;
cursor.wrapped_x = 0;
prev_cursor = cursor;
}
++cursor.character;
cursor.unwrapped_x += ch_width;
cursor.wrapped_x += ch_width;
}break;
if (S.ch != ' ' && S.ch != '\t'){
goto double_break_vwhite;
}
else{
++S.cursor.character;
}
}
S.still_looping = buffer_stringify_next(&S.stream);
}while(S.still_looping);
}
double_break_vwhite:;
}
// If we are already passed the point we want to be at, then just take this.
switch (params.seek.type){
case buffer_seek_pos:
{
if (S.cursor.pos >= params.seek.pos){
goto buffer_cursor_seek_end;
}
}break;
case buffer_seek_line_char:
{
if (S.cursor.line >= params.seek.line && S.cursor.character >= params.seek.character){
goto buffer_cursor_seek_end;
}
}break;
case buffer_seek_unwrapped_xy:
{
if (S.cursor.unwrapped_y > params.seek.y){
goto buffer_cursor_seek_end;
}
}break;
case buffer_seek_wrapped_xy:
{
if (S.cursor.wrapped_y > params.seek.y){
goto buffer_cursor_seek_end;
}
}break;
}
// Main seek loop
S.i = S.cursor.pos;
S.stream.use_termination_character = 1;
S.stream.terminator = 0;
if (buffer_stringify_loop(&S.stream, params.buffer, S.i, S.size)){
S.still_looping = 0;
do{
for (; S.i < S.stream.end; ++S.i){
S.ch = (u8)S.stream.data[S.i];
S.prev_cursor = S.cursor;
switch (S.ch){
case '\n':
{
++S.cursor.line;
S.cursor.unwrapped_y += params.font_height;
S.cursor.wrapped_y += params.font_height;
S.cursor.character = 1;
S.cursor.unwrapped_x = 0;
S.cursor.wrapped_x = 0;
}break;
++cursor.pos;
default:
{
f32 ch_width = params.adv[S.ch];
if (S.cursor.wrapped_x + ch_width > params.max_width){
S.cursor.wrapped_y += params.font_height;
S.cursor.wrapped_x = 0;
S.prev_cursor = S.cursor;
}
++S.cursor.character;
S.cursor.unwrapped_x += ch_width;
S.cursor.wrapped_x += ch_width;
}break;
}
++S.cursor.pos;
if (S.cursor.pos > S.size){
S.cursor = S.prev_cursor;
goto buffer_cursor_seek_end;
}
f32 x = 0, px = 0, y = 0;
switch (params.seek.type){
case buffer_seek_pos:
if (S.cursor.pos > params.seek.pos){
S.cursor = S.prev_cursor;
goto buffer_cursor_seek_end;
}break;
if (cursor.pos > size){
cursor = prev_cursor;
case buffer_seek_wrapped_xy:
{
x = S.cursor.wrapped_x; px = S.prev_cursor.wrapped_x;
y = S.cursor.wrapped_y;
}break;
case buffer_seek_unwrapped_xy:
{
x = S.cursor.unwrapped_x; px = S.prev_cursor.unwrapped_x;
y = S.cursor.unwrapped_y;
}break;
case buffer_seek_line_char:
if (S.cursor.line == params.seek.line && S.cursor.character >= params.seek.character){
goto buffer_cursor_seek_end;
}
else if (S.cursor.line > params.seek.line){
S.cursor = S.prev_cursor;
goto buffer_cursor_seek_end;
}break;
}
if (S.xy_seek){
if (y > params.seek.y){
S.cursor = S.prev_cursor;
goto buffer_cursor_seek_end;
}
f32 x = 0, px = 0, y = 0;
switch (params.seek.type){
case buffer_seek_pos:
if (cursor.pos > params.seek.pos){
cursor = prev_cursor;
goto buffer_cursor_seek_end;
}break;
case buffer_seek_wrapped_xy:
x = cursor.wrapped_x; px = prev_cursor.wrapped_x;
y = cursor.wrapped_y; break;
case buffer_seek_unwrapped_xy:
x = cursor.unwrapped_x; px = prev_cursor.unwrapped_x;
y = cursor.unwrapped_y; break;
case buffer_seek_line_char:
if (cursor.line == params.seek.line && cursor.character >= params.seek.character){
goto buffer_cursor_seek_end;
}
else if (cursor.line > params.seek.line){
cursor = prev_cursor;
goto buffer_cursor_seek_end;
}break;
}
if (xy_seek){
if (y > params.seek.y){
cursor = prev_cursor;
if (y > params.seek.y - params.font_height && x >= params.seek.x){
if (!params.seek.round_down){
if (S.ch != '\n' && (params.seek.x - px) < (x - params.seek.x)){
S.cursor = S.prev_cursor;
}
goto buffer_cursor_seek_end;
}
if (y > params.seek.y - params.font_height && x >= params.seek.x){
if (!params.seek.round_down){
if (ch != '\n' && (params.seek.x - px) < (x - params.seek.x)) cursor = prev_cursor;
goto buffer_cursor_seek_end;
}
if (x > params.seek.x){
cursor = prev_cursor;
goto buffer_cursor_seek_end;
}
if (x > params.seek.x){
S.cursor = S.prev_cursor;
goto buffer_cursor_seek_end;
}
}
}
still_looping = buffer_stringify_next(&stream);
}while(still_looping);
}
InvalidCodePath;
}
S.still_looping = buffer_stringify_next(&S.stream);
}while(S.still_looping);
}
InvalidCodePath;
buffer_cursor_seek_end:;
return(cursor);
*cursor_out = S.cursor;
S_stop.status = BLStatus_Finished;
DrReturn(S_stop);
}
#undef DrYield
#undef DrReturn
#undef DrCase
internal_4tech void
buffer_invert_edit_shift(Buffer_Type *buffer, Buffer_Edit edit, Buffer_Edit *inverse, char *strings,
i32 *str_pos, i32 max, i32 shift_amount){
@ -747,7 +845,6 @@ struct Buffer_Render_State{
i32 line;
b32 skipping_whitespace;
b32 first_whitespace_skip;
i32 __pc__;
};
@ -757,21 +854,10 @@ struct Buffer_Render_State{
#define DrYield(PC, n) { *S_ptr = S; S_ptr->__pc__ = PC; return(n); resumespot_##PC:; }
#define DrReturn(n) { *S_ptr = S; S_ptr->__pc__ = -1; return(n); }
enum{
RenderStatus_Finished,
RenderStatus_NeedLineShift
};
struct Buffer_Render_Stop{
u32 status;
i32 line_index;
i32 pos;
};
internal_4tech Buffer_Render_Stop
internal_4tech Buffer_Layout_Stop
buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32 line_shift){
Buffer_Render_State S = *S_ptr;
Buffer_Render_Stop S_stop;
Buffer_Layout_Stop S_stop;
i32 size = buffer_size(params.buffer);
f32 shift_x = params.port_x - params.scroll_x;
@ -795,7 +881,7 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
S.line = params.start_cursor.line - 1;
if (params.virtual_white){
S_stop.status = RenderStatus_NeedLineShift;
S_stop.status = BLStatus_NeedLineShift;
S_stop.line_index = S.line;
S_stop.pos = params.start_cursor.pos;
DrYield(1, S_stop);
@ -819,7 +905,7 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
if (S.ch_width + S.write.x > params.width + shift_x && S.ch != '\n' && params.wrapped){
if (params.virtual_white){
S_stop.status = RenderStatus_NeedLineShift;
S_stop.status = BLStatus_NeedWrapLineShift;
S_stop.line_index = S.line;
S_stop.pos = S.i+1;
DrYield(2, S_stop);
@ -837,12 +923,6 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
S.skipping_whitespace = 0;
}
if (S.skipping_whitespace && S.first_whitespace_skip){
S.write = write_render_item(S.write, S.i, ' ', 0);
S.write.x = shift_x + line_shift;
S.first_whitespace_skip = 0;
}
if (!S.skipping_whitespace){
switch (S.ch){
case '\n':
@ -850,26 +930,17 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
S.write = write_render_item(S.write, S.i, ' ', 0);
if (params.virtual_white){
S_stop.status = RenderStatus_NeedLineShift;
S_stop.status = BLStatus_NeedLineShift;
S_stop.line_index = S.line+1;
S_stop.pos = S.i+1;
DrYield(3, S_stop);
S.skipping_whitespace = 1;
if (line_shift >= params.adv[' ']){
S.first_whitespace_skip = 1;
}
}
++S.line;
if (S.first_whitespace_skip){
S.write.x = shift_x;
}
else{
S.write.x = shift_x + line_shift;
}
S.write.x = shift_x + line_shift;
S.write.y += params.font_height;
}
break;
@ -952,7 +1023,7 @@ buffer_render_data(Buffer_Render_State *S_ptr, Buffer_Render_Params params, f32
*params.count = (i32)(S.write.item - params.items);
assert_4tech(*params.count <= params.max);
S_stop.status = RenderStatus_Finished;
S_stop.status = BLStatus_Finished;
DrReturn(S_stop);
}