4coder/custom/4coder_ui_helper.cpp

725 lines
25 KiB
C++

/*
* Helpers for ui data structures.
*/
// TOP
typedef u32 View_Get_UI_Flags;
enum{
ViewGetUIFlag_KeepDataAsIs = 0,
ViewGetUIFlag_ClearData = 1,
};
static b32
view_get_ui_data(Application_Links *app, View_ID view_id, View_Get_UI_Flags flags, UI_Data **ui_data_out, Arena **ui_arena_out){
b32 result = false;
Managed_Scope scope = view_get_managed_scope(app, view_id);
if (scope != 0){
Managed_Object *ui_data_object_ptr = scope_attachment(app, scope, view_ui_data, Managed_Object);
Managed_Object ui_data_object = *ui_data_object_ptr;
if (ui_data_object == 0){
Managed_Object new_ui_data_object = alloc_managed_memory_in_scope(app, scope, sizeof(UI_Storage), 1);
Base_Allocator *allocator = managed_scope_allocator(app, scope);
Arena arena_temp = make_arena(allocator, KB(8));
Arena *arena = push_array(&arena_temp, Arena, 1);
block_copy_struct(arena, &arena_temp);
UI_Data *ui_data = push_array(arena, UI_Data, 1);
UI_Storage storage = {};
storage.data = ui_data;
storage.arena = arena;
storage.temp = begin_temp(arena);
if (managed_object_store_data(app, new_ui_data_object, 0, 1, &storage)){
*ui_data_object_ptr = new_ui_data_object;
ui_data_object = new_ui_data_object;
}
}
if (ui_data_object != 0){
UI_Storage storage = {};
if (managed_object_load_data(app, ui_data_object, 0, 1, &storage)){
*ui_data_out = storage.data;
*ui_arena_out = storage.arena;
if ((flags & ViewGetUIFlag_ClearData) != 0){
end_temp(storage.temp);
}
result = true;
}
}
}
return(result);
}
static b32
view_clear_ui_data(Application_Links *app, View_ID view_id){
b32 result = false;
Managed_Scope scope = view_get_managed_scope(app, view_id);
if (scope != 0){
Managed_Object *ui_data_object_ptr = scope_attachment(app, scope, view_ui_data, Managed_Object);
Managed_Object ui_data_object = *ui_data_object_ptr;
if (ui_data_object != 0){
UI_Storage storage = {};
if (managed_object_load_data(app, ui_data_object, 0, 1, &storage)){
Arena arena_temp = *storage.arena;
linalloc_clear(&arena_temp);
managed_object_free(app, ui_data_object);
*ui_data_object_ptr = 0;
result = true;
}
}
}
return(result);
}
////////////////////////////////
static UI_Item*
ui_list_add_item(Arena *arena, UI_List *list, UI_Item item){
UI_Item *node = push_array(arena, UI_Item, 1);
block_copy_struct(node, &item);
zdll_push_back(list->first, list->last, node);
list->count += 1;
return(node);
}
static void
ui_data_compute_bounding_boxes(UI_Data *ui_data){
for (u32 i = 0; i < UICoordinates_COUNT; ++i){
ui_data->bounding_box[i] = Ri32_negative_infinity;
}
for (UI_Item *item = ui_data->list.first;
item != 0;
item = item->next){
if (item->coordinates >= UICoordinates_COUNT){
item->coordinates = UICoordinates_ViewSpace;
}
Rect_i32 *box = &ui_data->bounding_box[item->coordinates];
*box = rect_union(*box, item->rect_outer);
}
}
static void
ui_control_set_top(UI_Data *data, i32 top_y){
data->bounding_box[UICoordinates_ViewSpace].y0 = top_y;
}
static void
ui_control_set_bottom(UI_Data *data, i32 bottom_y){
data->bounding_box[UICoordinates_ViewSpace].y1 = bottom_y;
}
static UI_Item*
ui_control_get_mouse_hit(UI_Data *data, Vec2_f32 view_p, Vec2_f32 panel_p){
UI_Item *result = 0;
for (UI_Item *item = data->list.first; item != 0 && result == 0; item = item->next){
Rect_f32 r = Rf32(item->rect_outer);
switch (item->coordinates){
case UICoordinates_ViewSpace:
{
if (rect_contains_point(r, view_p)){
result = item;
}
}break;
case UICoordinates_PanelSpace:
{
if (rect_contains_point(r, panel_p)){
result = item;
}
}break;
}
}
return(result);
}
////////////////////////////////
static void
view_set_vertical_focus_basic(Application_Links *app, View_ID view, f32 y_top, f32 y_bot){
Rect_f32 buffer_region = view_get_buffer_region(app, view);
Basic_Scroll scroll = view_get_basic_scroll(app, view);
f32 view_height = rect_height(buffer_region);
Interval_f32 view_y = If32(scroll.target.y, scroll.target.y + view_height);
Interval_f32 acceptable_y = If32(lerp(view_y.min, 0.10f, view_y.max),
lerp(view_y.min, 0.90f, view_y.max));
f32 acceptable_height = range_size(acceptable_y);
f32 skirt_height = acceptable_y.min - view_y.min;
f32 height = y_bot - y_top;
if (height > acceptable_height){
scroll.target.y = y_top - skirt_height;
view_set_basic_scroll(app, view, scroll);
}
else{
if (y_top < acceptable_y.min){
scroll.target.y = y_top - skirt_height;
view_set_basic_scroll(app, view, scroll);
}
else if (y_bot > acceptable_y.max){
scroll.target.y = y_bot + skirt_height - view_height;
view_set_basic_scroll(app, view, scroll);
}
}
}
static Vec2_f32
panel_space_from_screen_space(Vec2_f32 p, Vec2_f32 file_region_p0){
return(p - file_region_p0);
}
static Vec2_f32
get_mouse_position_in_panel_space(Mouse_State mouse, Vec2_f32 file_region_p0){
return(panel_space_from_screen_space(V2f32(mouse.p), file_region_p0));
}
static Vec2_f32
get_mouse_position_in_panel_space(Application_Links *app, Vec2_f32 file_region_p0){
return(get_mouse_position_in_panel_space(get_mouse_state(app), file_region_p0));
}
////////////////////////////////
// TODO(allen): VIEW_16_LIMIT
Lister_State global_lister_state_[16] = {};
Lister_State *global_lister_state = global_lister_state_ - 1;
static Lister_State*
view_get_lister_state(View_ID view){
return(&global_lister_state[view]);
}
static i32
lister_standard_arena_size_round_up(i32 arena_size){
if (arena_size < (64 << 10)){
arena_size = (64 << 10);
}
else{
arena_size += (4 << 10) - 1;
arena_size -= arena_size%(4 << 10);
}
return(arena_size);
}
static void
init_lister_state(Application_Links *app, Lister_State *state, Heap *heap){
state->initialized = true;
state->hot_user_data = 0;
state->item_index = 0;
state->set_view_vertical_focus_to_item = false;
state->item_count_after_filter = 0;
}
UI_QUIT_FUNCTION(lister_quit_function){
Lister_State *state = view_get_lister_state(view);
state->initialized = false;
view_clear_ui_data(app, view);
}
static UI_Item
lister_get_clicked_item(Application_Links *app, View_ID view_id){
UI_Item result = {};
UI_Data *ui_data = 0;
Arena *ui_arena = 0;
if (view_get_ui_data(app, view_id, ViewGetUIFlag_KeepDataAsIs, &ui_data, &ui_arena)){
Mouse_State mouse = get_mouse_state(app);
Rect_f32 region = view_get_buffer_region(app, view_id);
Vec2_f32 m_panel_space = get_mouse_position_in_panel_space(mouse, region.p0);
Basic_Scroll scroll = view_get_basic_scroll(app, view_id);
Vec2_f32 m_view_space = m_panel_space + scroll.position;
UI_Item *clicked = ui_control_get_mouse_hit(ui_data, m_view_space, m_panel_space);
if (clicked != 0){
result = *clicked;
}
}
return(result);
}
static f32
lister_get_text_field_height(f32 line_height){
return(line_height);
}
static f32
lister_get_block_height(f32 line_height, b32 is_theme_list){
f32 block_height = 0;
if (is_theme_list){
block_height = line_height*3 + 6;
}
else{
block_height = line_height*2;
}
return(block_height);
}
static void
lister_update_ui(Application_Links *app, View_ID view, Lister_State *state){
b32 is_theme_list = state->lister.data.theme_list;
Rect_f32 screen_rect = view_get_screen_rect(app, view);
Face_ID face_id = get_face_id(app, 0);
Face_Metrics metrics = get_face_metrics(app, face_id);
Basic_Scroll scroll = view_get_basic_scroll(app, view);
f32 x0 = 0;
f32 x1 = (rect_width(screen_rect));
f32 line_height = metrics.line_height;
f32 block_height = lister_get_block_height(line_height, is_theme_list);
f32 text_field_height = lister_get_text_field_height(metrics.line_height);
Scratch_Block scratch(app, Scratch_Share);
Rect_f32 region = view_get_buffer_region(app, view);
Vec2_f32 view_m = get_mouse_position_in_panel_space(app, region.p0);
view_m += scroll.position;
f32 y_pos = text_field_height;
state->raw_item_index = -1;
i32 node_count = state->lister.data.options.count;
Lister_Node_Ptr_Array exact_matches = {};
exact_matches.node_ptrs = push_array(scratch, Lister_Node*, 1);
Lister_Node_Ptr_Array before_extension_matches = {};
before_extension_matches.node_ptrs = push_array(scratch, Lister_Node*, node_count);
Lister_Node_Ptr_Array substring_matches = {};
substring_matches.node_ptrs = push_array(scratch, Lister_Node*, node_count);
{
Temp_Memory temp = begin_temp(scratch);
String_Const_u8 key = state->lister.data.key_string.string;
key = push_string_copy(scratch, key);
string_mod_replace_character(key, '_', '*');
string_mod_replace_character(key, ' ', '*');
List_String_Const_u8 absolutes = {};
string_list_push(scratch, &absolutes, string_u8_litexpr(""));
List_String_Const_u8 splits = string_split(scratch, key, (u8*)"*", 1);
b32 has_wildcard = (splits.node_count > 1);
string_list_push(&absolutes, &splits);
string_list_push(scratch, &absolutes, string_u8_litexpr(""));
for (Lister_Node *node = state->lister.data.options.first;
node != 0;
node = node->next){
String_Const_u8 node_string = node->string;
if (key.size == 0 || string_wildcard_match_insensitive(absolutes, node_string)){
if (string_match_insensitive(node_string, key) && exact_matches.count == 0){
exact_matches.node_ptrs[exact_matches.count++] = node;
}
else if (!has_wildcard &&
string_match_insensitive(string_prefix(node_string, key.size), key) &&
node->string.size > key.size &&
node->string.str[key.size] == '.'){
before_extension_matches.node_ptrs[before_extension_matches.count++] = node;
}
else{
substring_matches.node_ptrs[substring_matches.count++] = node;
}
}
}
end_temp(temp);
}
Lister_Node_Ptr_Array node_ptr_arrays[] = {
exact_matches,
before_extension_matches,
substring_matches,
};
UI_Data *ui_data = 0;
Arena *ui_arena = 0;
if (view_get_ui_data(app, view, ViewGetUIFlag_ClearData, &ui_data, &ui_arena)){
block_zero_struct(ui_data);
UI_Item *highlighted_item = 0;
UI_Item *hot_item = 0;
UI_Item *hovered_item = 0;
i32 item_index_counter = 0;
for (i32 array_index = 0; array_index < ArrayCount(node_ptr_arrays); array_index += 1){
Lister_Node_Ptr_Array node_ptr_array = node_ptr_arrays[array_index];
for (i32 node_index = 0; node_index < node_ptr_array.count; node_index += 1){
Lister_Node *node = node_ptr_array.node_ptrs[node_index];
Rect_f32 item_rect = Rf32(x0, y_pos, x1, y_pos + block_height);
y_pos = item_rect.y1;
UI_Item item = {};
item.activation_level = UIActivation_None;
item.coordinates = UICoordinates_ViewSpace;
item.rect_outer = Ri32(item_rect);
item.inner_margin = 3;
if (!is_theme_list){
Fancy_String_List list = {};
push_fancy_string (ui_arena, &list, fancy_id(Stag_Default), node->string);
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Default), " ");
push_fancy_string (ui_arena, &list, fancy_id(Stag_Pop2 ), node->status);
item.lines[0] = list;
item.line_count = 1;
}
else{
//i32 style_index = node->index;
String_Const_u8 name = string_u8_litexpr("name");
item.lines[0] = fancy_string_list_single(push_fancy_string(ui_arena, fancy_id(Stag_Default), name));
Fancy_String_List list = {};
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Keyword ), "if ");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Default ), "(x < ");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Int_Constant), "0");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Default ), ") { x = ");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Int_Constant), "0");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Default ), "; } ");
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Comment ), "// comment");
item.lines[1] = list;
item.line_count = 2;
}
item.user_data = node->user_data;
UI_Item *item_ptr = ui_list_add_item(ui_arena, &ui_data->list, item);
if (rect_contains_point(item_rect, view_m)){
hovered_item = item_ptr;
}
if (state->item_index == item_index_counter){
highlighted_item = item_ptr;
state->raw_item_index = node->raw_index;
}
item_index_counter += 1;
if (node->user_data == state->hot_user_data && hot_item != 0){
hot_item = item_ptr;
}
}
}
state->item_count_after_filter = item_index_counter;
if (hovered_item != 0){
hovered_item->activation_level = UIActivation_Hover;
}
if (hot_item != 0){
if (hot_item == hovered_item){
hot_item->activation_level = UIActivation_Active;
}
else{
hot_item->activation_level = UIActivation_Hover;
}
}
if (highlighted_item != 0){
highlighted_item->activation_level = UIActivation_Active;
}
if (state->set_view_vertical_focus_to_item){
if (highlighted_item != 0){
view_set_vertical_focus_basic(app, view,
(f32)highlighted_item->rect_outer.y0,
(f32)highlighted_item->rect_outer.y1);
}
state->set_view_vertical_focus_to_item = false;
}
{
// TODO(allen): switch to float
Rect_i32 item_rect = {};
item_rect.x0 = (i32)x0;
item_rect.y0 = 0;
item_rect.x1 = (i32)x1;
item_rect.y1 = item_rect.y0 + (i32)text_field_height;
y_pos = (f32)item_rect.y1;
UI_Item item = {};
item.activation_level = UIActivation_Active;
item.coordinates = UICoordinates_PanelSpace;
item.rect_outer = item_rect;
item.inner_margin = 0;
{
Fancy_String_List list = {};
push_fancy_string (ui_arena, &list, fancy_id(Stag_Pop1 ), state->lister.data.query.string);
push_fancy_stringf(ui_arena, &list, fancy_id(Stag_Pop1 ), " ");
push_fancy_string (ui_arena, &list, fancy_id(Stag_Default), state->lister.data.text_field.string);
item.lines[0] = list;
item.line_count = 1;
}
item.user_data = 0;
ui_list_add_item(ui_arena, &ui_data->list, item);
}
ui_data_compute_bounding_boxes(ui_data);
// TODO(allen): what to do with control now?
//UI_Control control = ui_list_to_ui_control(scratch, &list);
view_set_quit_ui_handler(app, view, lister_quit_function);
}
}
static Lister_Prealloced_String
lister_prealloced(String_Const_u8 string){
Lister_Prealloced_String result = {};
result.string = string;
return(result);
}
static void
lister_first_init(Application_Links *app, Lister *lister, void *user_data, i32 user_data_size){
if (lister->arena == 0) {
lister->arena = reserve_arena(app, KB(16));
}
else{
linalloc_clear(lister->arena);
}
block_zero_struct(&lister->data);
lister->data.query = Su8(lister->data.query_space, 0, sizeof(lister->data.query_space));
lister->data.text_field = Su8(lister->data.text_field_space, 0, sizeof(lister->data.text_field_space));
lister->data.key_string = Su8(lister->data.key_string_space, 0, sizeof(lister->data.key_string_space));
lister->data.user_data = push_array(lister->arena, char, user_data_size);
lister->data.user_data_size = user_data_size;
if (user_data != 0){
block_copy(lister->data.user_data, user_data, user_data_size);
}
}
static void
lister_begin_new_item_set(Application_Links *app, Lister *lister){
linalloc_clear(lister->arena);
block_zero_struct(&lister->data.options);
}
static void*
lister_add_item(Lister *lister, Lister_Prealloced_String string, Lister_Prealloced_String status,
void *user_data, umem extra_space){
void *base_memory = push_array(lister->arena, u8, sizeof(Lister_Node) + extra_space);
Lister_Node *node = (Lister_Node*)base_memory;
node->string = string.string;
node->status = status.string;
node->user_data = user_data;
node->raw_index = lister->data.options.count;
zdll_push_back(lister->data.options.first, lister->data.options.last, node);
lister->data.options.count += 1;
void *result = (node + 1);
return(result);
}
static void*
lister_add_item(Lister *lister, Lister_Prealloced_String string, String_Const_u8 status,
void *user_data, umem extra_space){
return(lister_add_item(lister, string, lister_prealloced(push_string_copy(lister->arena, status)),
user_data, extra_space));
}
static void*
lister_add_item(Lister *lister, String_Const_u8 string, Lister_Prealloced_String status,
void *user_data, umem extra_space){
return(lister_add_item(lister, lister_prealloced(push_string_copy(lister->arena, string)), status,
user_data, extra_space));
}
static void*
lister_add_item(Lister *lister, String_Const_u8 string, String_Const_u8 status, void *user_data, umem extra_space){
return(lister_add_item(lister,
lister_prealloced(push_string_copy(lister->arena, string)),
lister_prealloced(push_string_copy(lister->arena, status)),
user_data, extra_space));
}
static void*
lister_add_theme_item(Lister *lister,
Lister_Prealloced_String string, i32 index,
void *user_data, i32 extra_space){
Lister_Node *node = push_array(lister->arena, Lister_Node, 1);
node->string = string.string;
node->index = index;
node->user_data = user_data;
node->raw_index = lister->data.options.count;
zdll_push_back(lister->data.options.first, lister->data.options.last, node);
lister->data.options.count += 1;
void *result = push_array(lister->arena, char, extra_space);
push_align(lister->arena, 8);
return(result);
}
static void*
lister_add_theme_item(Lister *lister, String_Const_u8 string, i32 index,
void *user_data, i32 extra_space){
return(lister_add_theme_item(lister, lister_prealloced(push_string_copy(lister->arena, string)), index,
user_data, extra_space));
}
static void*
lister_get_user_data(Lister_Data *lister_data, i32 index){
void *result = 0;
if (0 <= index && index < lister_data->options.count){
i32 counter = 0;
for (Lister_Node *node = lister_data->options.first;
node != 0;
node = node->next, counter += 1){
if (counter == index){
result = node->user_data;
break;
}
}
}
return(result);
}
static void
lister_call_refresh_handler(Application_Links *app, Lister *lister){
if (lister->data.handlers.refresh != 0){
lister->data.handlers.refresh(app, lister);
}
}
static void
lister_default(Application_Links *app, Heap *heap, View_ID view, Lister_State *state, Lister_Activation_Code code){
switch (code){
case ListerActivation_Finished:
{
view_end_ui_mode(app, view);
state->initialized = false;
linalloc_clear(state->lister.arena);
}break;
case ListerActivation_Continue:
{
view_begin_ui_mode(app, view);
}break;
case ListerActivation_ContinueAndRefresh:
{
view_begin_ui_mode(app, view);
state->item_index = 0;
lister_call_refresh_handler(app, &state->lister);
lister_update_ui(app, view, state);
}break;
}
}
static void
lister_call_activate_handler(Application_Links *app, Heap *heap, View_ID view, Lister_State *state, void *user_data, b32 activated_by_mouse){
Lister_Data *lister = &state->lister.data;
if (lister->handlers.activate != 0){
lister->handlers.activate(app, heap, view, state, lister->text_field.string, user_data, activated_by_mouse);
}
else{
lister_default(app, heap, view, state, ListerActivation_Finished);
}
}
static void
lister_set_string(String_Const_u8 string, String_u8 *target){
target->size = 0;
string_append(target, string);
}
static void
lister_append_string(String_Const_u8 string, String_u8 *target){
string_append(target, string);
}
static void
lister_set_query(Lister_Data *lister, String_Const_u8 string){
lister_set_string(string, &lister->query);
}
static void
lister_set_query(Lister_Data *lister, char *string){
lister_set_string(SCu8(string), &lister->query);
}
static void
lister_set_text_field(Lister_Data *lister, String_Const_u8 string){
lister_set_string(string, &lister->text_field);
}
static void
lister_set_text_field(Lister_Data *lister, char *string){
lister_set_string(SCu8(string), &lister->text_field);
}
static void
lister_set_key(Lister_Data *lister, String_Const_u8 string){
lister_set_string(string, &lister->key_string);
}
static void
lister_set_key(Lister_Data *lister, char *string){
lister_set_string(SCu8(string), &lister->key_string);
}
static void
lister_set_query(Lister *lister, String_Const_u8 string){
lister_set_query(&lister->data, string);
}
static void
lister_set_query(Lister *lister, char *string){
lister_set_query(&lister->data, string);
}
static void
lister_set_text_field(Lister *lister, String_Const_u8 string){
lister_set_text_field(&lister->data, string);
}
static void
lister_set_text_field(Lister *lister, char *string){
lister_set_text_field(&lister->data, string);
}
static void
lister_set_key(Lister *lister, String_Const_u8 string){
lister_set_key(&lister->data, string);
}
static void
lister_set_key(Lister *lister, char *string){
lister_set_key(&lister->data, string);
}
static void
lister_append_query(Lister_Data *lister, String_Const_u8 string){
lister_append_string(string, &lister->query);
}
static void
lister_append_query(Lister_Data *lister, char *string){
lister_append_string(SCu8(string), &lister->query);
}
static void
lister_append_text_field(Lister_Data *lister, String_Const_u8 string){
lister_append_string(string, &lister->text_field);
}
static void
lister_append_text_field(Lister_Data *lister, char *string){
lister_append_string(SCu8(string), &lister->text_field);
}
static void
lister_append_key(Lister_Data *lister, String_Const_u8 string){
lister_append_string(string, &lister->key_string);
}
static void
lister_append_key(Lister_Data *lister, char *string){
lister_append_string(SCu8(string), &lister->key_string);
}
static void
lister_append_query(Lister *lister, String_Const_u8 string){
lister_append_query(&lister->data, string);
}
static void
lister_append_query(Lister *lister, char *string){
lister_append_query(&lister->data, string);
}
static void
lister_append_text_field(Lister *lister, String_Const_u8 string){
lister_append_text_field(&lister->data, string);
}
static void
lister_append_text_field(Lister *lister, char *string){
lister_append_text_field(&lister->data, string);
}
static void
lister_append_key(Lister *lister, String_Const_u8 string){
lister_append_key(&lister->data, string);
}
static void
lister_append_key(Lister *lister, char *string){
lister_append_key(&lister->data, string);
}
// BOTTOM