4coder/4coder_font_helper.cpp

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/*
4coder_font_helper.cpp - Procedures for font setting operations
*/
// TOP
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// TODO(allen): transition wrappers
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static Face_Description
get_buffer_face_description(Application_Links *app, Buffer_ID buffer){
Face_ID current_id = 0;
get_face_id(app, buffer, &current_id);
Face_Description description = {};
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if (current_id != 0){
description = get_face_description(app, current_id);
}
return(description);
}
static Face_Description
get_global_face_description(Application_Links *app){
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Face_ID current_id = 0;
get_face_id(app, 0, &current_id);
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Face_Description description = get_face_description(app, current_id);
return(description);
}
static b32
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descriptions_match(Face_Description *a, Face_Description *b){
b32 result = false;
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if (string_match(SCchar(a->font.name), SCchar(b->font.name)) && a->font.in_local_font_folder == b->font.in_local_font_folder){
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if (memcmp((&a->pt_size), (&b->pt_size), sizeof(*a) - sizeof(a->font)) == 0){
result = true;
}
}
return(result);
}
static Face_ID
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get_existing_face_id_matching_name(Application_Links *app, String_Const_u8 name){
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Face_ID largest_id = get_largest_face_id(app);
Face_ID result = 0;
for (Face_ID id = 1; id <= largest_id; ++id){
Face_Description compare = get_face_description(app, id);
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if (string_match(SCu8(compare.font.name), name)){
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result = id;
break;
}
}
return(result);
}
static Face_ID
get_existing_face_id_matching_description(Application_Links *app, Face_Description *description){
Face_ID largest_id = get_largest_face_id(app);
Face_ID result = 0;
for (Face_ID id = 1; id <= largest_id; ++id){
Face_Description compare = get_face_description(app, id);
if (descriptions_match(&compare, description)){
result = id;
break;
}
}
return(result);
}
static Face_ID
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get_face_id_by_name(Application_Links *app, String_Const_u8 name, Face_Description *base_description){
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Face_ID new_id = 0;
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name.size = clamp_top(name.size, sizeof(base_description->font.name) - 1);
if (!string_match(name, SCu8(base_description->font.name))){
new_id = get_existing_face_id_matching_name(app, name);
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if (new_id == 0){
Face_Description description = *base_description;
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block_copy(description.font.name, name.str, name.size);
description.font.name[name.size] = 0;
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description.font.in_local_font_folder = false;
new_id = try_create_new_face(app, &description);
if (new_id == 0){
description.font.in_local_font_folder = true;
new_id = try_create_new_face(app, &description);
}
}
}
return(new_id);
}
static Face_ID
get_face_id_by_description(Application_Links *app, Face_Description *description, Face_Description *base_description){
Face_ID new_id = 0;
if (!descriptions_match(description, base_description)){
new_id = get_existing_face_id_matching_description(app, description);
if (new_id == 0){
new_id = try_create_new_face(app, description);
}
}
return(new_id);
}
static void
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set_global_face_by_name(Application_Links *app, String_Const_u8 name, b32 apply_to_all_buffers){
Face_ID global_face_id = 0;
get_face_id(app, 0, &global_face_id);
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Face_Description description = get_face_description(app, global_face_id);
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Face_ID new_id = get_face_id_by_name(app, name, &description);
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if (new_id != 0){
set_global_face(app, new_id, apply_to_all_buffers);
}
}
static void
change_global_face_by_description(Application_Links *app, Face_Description description, b32 apply_to_all_buffers){
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Face_ID face_id = 0;
get_face_id(app, 0, &face_id);
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if (!try_modify_face(app, face_id, &description)){
description.font.in_local_font_folder = !description.font.in_local_font_folder;
try_modify_face(app, face_id, &description);
}
}
static void
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set_buffer_face_by_name(Application_Links *app, Buffer_ID buffer, String_Const_u8 name){
Face_ID current_id = 0;
get_face_id(app, buffer, &current_id);
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if (current_id != 0){
Face_Description description = get_face_description(app, current_id);
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Face_ID new_id = get_face_id_by_name(app, name, &description);
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if (new_id != 0){
buffer_set_face(app, buffer, new_id);
}
}
}
// BOTTOM