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virtualx-engine/scene/3d/label_3d.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all 
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".
2023-01-05 13:25:55 +01:00

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/**************************************************************************/
/* label_3d.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "label_3d.h"
#include "core/core_string_names.h"
#include "scene/main/viewport.h"
#include "scene/resources/theme.h"
#include "scene/scene_string_names.h"
#include "scene/theme/theme_db.h"
void Label3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &Label3D::set_horizontal_alignment);
ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &Label3D::get_horizontal_alignment);
ClassDB::bind_method(D_METHOD("set_vertical_alignment", "alignment"), &Label3D::set_vertical_alignment);
ClassDB::bind_method(D_METHOD("get_vertical_alignment"), &Label3D::get_vertical_alignment);
ClassDB::bind_method(D_METHOD("set_modulate", "modulate"), &Label3D::set_modulate);
ClassDB::bind_method(D_METHOD("get_modulate"), &Label3D::get_modulate);
ClassDB::bind_method(D_METHOD("set_outline_modulate", "modulate"), &Label3D::set_outline_modulate);
ClassDB::bind_method(D_METHOD("get_outline_modulate"), &Label3D::get_outline_modulate);
ClassDB::bind_method(D_METHOD("set_text", "text"), &Label3D::set_text);
ClassDB::bind_method(D_METHOD("get_text"), &Label3D::get_text);
ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &Label3D::set_text_direction);
ClassDB::bind_method(D_METHOD("get_text_direction"), &Label3D::get_text_direction);
ClassDB::bind_method(D_METHOD("set_language", "language"), &Label3D::set_language);
ClassDB::bind_method(D_METHOD("get_language"), &Label3D::get_language);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &Label3D::set_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &Label3D::get_structured_text_bidi_override);
ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &Label3D::set_structured_text_bidi_override_options);
ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &Label3D::get_structured_text_bidi_override_options);
ClassDB::bind_method(D_METHOD("set_uppercase", "enable"), &Label3D::set_uppercase);
ClassDB::bind_method(D_METHOD("is_uppercase"), &Label3D::is_uppercase);
ClassDB::bind_method(D_METHOD("set_render_priority", "priority"), &Label3D::set_render_priority);
ClassDB::bind_method(D_METHOD("get_render_priority"), &Label3D::get_render_priority);
ClassDB::bind_method(D_METHOD("set_outline_render_priority", "priority"), &Label3D::set_outline_render_priority);
ClassDB::bind_method(D_METHOD("get_outline_render_priority"), &Label3D::get_outline_render_priority);
ClassDB::bind_method(D_METHOD("set_font", "font"), &Label3D::set_font);
ClassDB::bind_method(D_METHOD("get_font"), &Label3D::get_font);
ClassDB::bind_method(D_METHOD("set_font_size", "size"), &Label3D::set_font_size);
ClassDB::bind_method(D_METHOD("get_font_size"), &Label3D::get_font_size);
ClassDB::bind_method(D_METHOD("set_outline_size", "outline_size"), &Label3D::set_outline_size);
ClassDB::bind_method(D_METHOD("get_outline_size"), &Label3D::get_outline_size);
ClassDB::bind_method(D_METHOD("set_line_spacing", "line_spacing"), &Label3D::set_line_spacing);
ClassDB::bind_method(D_METHOD("get_line_spacing"), &Label3D::get_line_spacing);
ClassDB::bind_method(D_METHOD("set_autowrap_mode", "autowrap_mode"), &Label3D::set_autowrap_mode);
ClassDB::bind_method(D_METHOD("get_autowrap_mode"), &Label3D::get_autowrap_mode);
ClassDB::bind_method(D_METHOD("set_width", "width"), &Label3D::set_width);
ClassDB::bind_method(D_METHOD("get_width"), &Label3D::get_width);
ClassDB::bind_method(D_METHOD("set_pixel_size", "pixel_size"), &Label3D::set_pixel_size);
ClassDB::bind_method(D_METHOD("get_pixel_size"), &Label3D::get_pixel_size);
ClassDB::bind_method(D_METHOD("set_offset", "offset"), &Label3D::set_offset);
ClassDB::bind_method(D_METHOD("get_offset"), &Label3D::get_offset);
ClassDB::bind_method(D_METHOD("set_draw_flag", "flag", "enabled"), &Label3D::set_draw_flag);
ClassDB::bind_method(D_METHOD("get_draw_flag", "flag"), &Label3D::get_draw_flag);
ClassDB::bind_method(D_METHOD("set_billboard_mode", "mode"), &Label3D::set_billboard_mode);
ClassDB::bind_method(D_METHOD("get_billboard_mode"), &Label3D::get_billboard_mode);
ClassDB::bind_method(D_METHOD("set_alpha_cut_mode", "mode"), &Label3D::set_alpha_cut_mode);
ClassDB::bind_method(D_METHOD("get_alpha_cut_mode"), &Label3D::get_alpha_cut_mode);
ClassDB::bind_method(D_METHOD("set_alpha_scissor_threshold", "threshold"), &Label3D::set_alpha_scissor_threshold);
ClassDB::bind_method(D_METHOD("get_alpha_scissor_threshold"), &Label3D::get_alpha_scissor_threshold);
ClassDB::bind_method(D_METHOD("set_texture_filter", "mode"), &Label3D::set_texture_filter);
ClassDB::bind_method(D_METHOD("get_texture_filter"), &Label3D::get_texture_filter);
ClassDB::bind_method(D_METHOD("generate_triangle_mesh"), &Label3D::generate_triangle_mesh);
ClassDB::bind_method(D_METHOD("_queue_update"), &Label3D::_queue_update);
ClassDB::bind_method(D_METHOD("_font_changed"), &Label3D::_font_changed);
ClassDB::bind_method(D_METHOD("_im_update"), &Label3D::_im_update);
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pixel_size", PROPERTY_HINT_RANGE, "0.0001,128,0.0001,suffix:m"), "set_pixel_size", "get_pixel_size");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "offset", PROPERTY_HINT_NONE, "suffix:px"), "set_offset", "get_offset");
ADD_GROUP("Flags", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "billboard", PROPERTY_HINT_ENUM, "Disabled,Enabled,Y-Billboard"), "set_billboard_mode", "get_billboard_mode");
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "shaded"), "set_draw_flag", "get_draw_flag", FLAG_SHADED);
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "double_sided"), "set_draw_flag", "get_draw_flag", FLAG_DOUBLE_SIDED);
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "no_depth_test"), "set_draw_flag", "get_draw_flag", FLAG_DISABLE_DEPTH_TEST);
ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "fixed_size"), "set_draw_flag", "get_draw_flag", FLAG_FIXED_SIZE);
ADD_PROPERTY(PropertyInfo(Variant::INT, "alpha_cut", PROPERTY_HINT_ENUM, "Disabled,Discard,Opaque Pre-Pass"), "set_alpha_cut_mode", "get_alpha_cut_mode");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "alpha_scissor_threshold", PROPERTY_HINT_RANGE, "0,1,0.001"), "set_alpha_scissor_threshold", "get_alpha_scissor_threshold");
ADD_PROPERTY(PropertyInfo(Variant::INT, "texture_filter", PROPERTY_HINT_ENUM, "Nearest,Linear,Nearest Mipmap,Linear Mipmap,Nearest Mipmap Anisotropic,Linear Mipmap Anisotropic"), "set_texture_filter", "get_texture_filter");
ADD_PROPERTY(PropertyInfo(Variant::INT, "render_priority", PROPERTY_HINT_RANGE, itos(RS::MATERIAL_RENDER_PRIORITY_MIN) + "," + itos(RS::MATERIAL_RENDER_PRIORITY_MAX) + ",1"), "set_render_priority", "get_render_priority");
ADD_PROPERTY(PropertyInfo(Variant::INT, "outline_render_priority", PROPERTY_HINT_RANGE, itos(RS::MATERIAL_RENDER_PRIORITY_MIN) + "," + itos(RS::MATERIAL_RENDER_PRIORITY_MAX) + ",1"), "set_outline_render_priority", "get_outline_render_priority");
ADD_GROUP("Text", "");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "modulate"), "set_modulate", "get_modulate");
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "outline_modulate"), "set_outline_modulate", "get_outline_modulate");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "text", PROPERTY_HINT_MULTILINE_TEXT, ""), "set_text", "get_text");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "font", PROPERTY_HINT_RESOURCE_TYPE, "Font"), "set_font", "get_font");
ADD_PROPERTY(PropertyInfo(Variant::INT, "font_size", PROPERTY_HINT_RANGE, "1,256,1,or_greater,suffix:px"), "set_font_size", "get_font_size");
ADD_PROPERTY(PropertyInfo(Variant::INT, "outline_size", PROPERTY_HINT_RANGE, "0,127,1,suffix:px"), "set_outline_size", "get_outline_size");
ADD_PROPERTY(PropertyInfo(Variant::INT, "horizontal_alignment", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_horizontal_alignment", "get_horizontal_alignment");
ADD_PROPERTY(PropertyInfo(Variant::INT, "vertical_alignment", PROPERTY_HINT_ENUM, "Top,Center,Bottom"), "set_vertical_alignment", "get_vertical_alignment");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "uppercase"), "set_uppercase", "is_uppercase");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "line_spacing", PROPERTY_HINT_NONE, "suffix:px"), "set_line_spacing", "get_line_spacing");
ADD_PROPERTY(PropertyInfo(Variant::INT, "autowrap_mode", PROPERTY_HINT_ENUM, "Off,Arbitrary,Word,Word (Smart)"), "set_autowrap_mode", "get_autowrap_mode");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "width", PROPERTY_HINT_NONE, "suffix:px"), "set_width", "get_width");
ADD_GROUP("BiDi", "");
ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left"), "set_text_direction", "get_text_direction");
ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
ADD_PROPERTY(PropertyInfo(Variant::INT, "structured_text_bidi_override", PROPERTY_HINT_ENUM, "Default,URI,File,Email,List,None,Custom"), "set_structured_text_bidi_override", "get_structured_text_bidi_override");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "structured_text_bidi_override_options"), "set_structured_text_bidi_override_options", "get_structured_text_bidi_override_options");
BIND_ENUM_CONSTANT(FLAG_SHADED);
BIND_ENUM_CONSTANT(FLAG_DOUBLE_SIDED);
BIND_ENUM_CONSTANT(FLAG_DISABLE_DEPTH_TEST);
BIND_ENUM_CONSTANT(FLAG_FIXED_SIZE);
BIND_ENUM_CONSTANT(FLAG_MAX);
BIND_ENUM_CONSTANT(ALPHA_CUT_DISABLED);
BIND_ENUM_CONSTANT(ALPHA_CUT_DISCARD);
BIND_ENUM_CONSTANT(ALPHA_CUT_OPAQUE_PREPASS);
}
void Label3D::_validate_property(PropertyInfo &p_property) const {
if (
p_property.name == "material_override" ||
p_property.name == "material_overlay" ||
p_property.name == "lod_bias" ||
p_property.name == "gi_mode" ||
p_property.name == "gi_lightmap_scale") {
p_property.usage = PROPERTY_USAGE_NO_EDITOR;
}
if (p_property.name == "cast_shadow" && alpha_cut == ALPHA_CUT_DISABLED) {
// Alpha-blended materials can't cast shadows.
p_property.usage = PROPERTY_USAGE_NO_EDITOR;
}
}
void Label3D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (!pending_update) {
_im_update();
}
Viewport *viewport = get_viewport();
ERR_FAIL_COND(!viewport);
viewport->connect("size_changed", callable_mp(this, &Label3D::_font_changed));
} break;
case NOTIFICATION_EXIT_TREE: {
Viewport *viewport = get_viewport();
ERR_FAIL_COND(!viewport);
viewport->disconnect("size_changed", callable_mp(this, &Label3D::_font_changed));
} break;
case NOTIFICATION_TRANSLATION_CHANGED: {
String new_text = tr(text);
if (new_text == xl_text) {
return; // Nothing new.
}
xl_text = new_text;
dirty_text = true;
_queue_update();
} break;
}
}
void Label3D::_im_update() {
_shape();
triangle_mesh.unref();
update_gizmos();
pending_update = false;
}
void Label3D::_queue_update() {
if (pending_update) {
return;
}
pending_update = true;
call_deferred(SceneStringNames::get_singleton()->_im_update);
}
AABB Label3D::get_aabb() const {
return aabb;
}
Ref<TriangleMesh> Label3D::generate_triangle_mesh() const {
if (triangle_mesh.is_valid()) {
return triangle_mesh;
}
Ref<Font> font = _get_font_or_default();
if (font.is_null()) {
return Ref<TriangleMesh>();
}
Vector<Vector3> faces;
faces.resize(6);
Vector3 *facesw = faces.ptrw();
float total_h = 0.0;
float max_line_w = 0.0;
for (int i = 0; i < lines_rid.size(); i++) {
total_h += TS->shaped_text_get_size(lines_rid[i]).y + line_spacing;
max_line_w = MAX(max_line_w, TS->shaped_text_get_width(lines_rid[i]));
}
float vbegin = 0;
switch (vertical_alignment) {
case VERTICAL_ALIGNMENT_FILL:
case VERTICAL_ALIGNMENT_TOP: {
// Nothing.
} break;
case VERTICAL_ALIGNMENT_CENTER: {
vbegin = (total_h - line_spacing) / 2.0;
} break;
case VERTICAL_ALIGNMENT_BOTTOM: {
vbegin = (total_h - line_spacing);
} break;
}
Vector2 offset = Vector2(0, vbegin);
switch (horizontal_alignment) {
case HORIZONTAL_ALIGNMENT_LEFT:
break;
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_CENTER: {
offset.x = -max_line_w / 2.0;
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
offset.x = -max_line_w;
} break;
}
Rect2 final_rect = Rect2(offset + lbl_offset, Size2(max_line_w, total_h));
if (final_rect.size.x == 0 || final_rect.size.y == 0) {
return Ref<TriangleMesh>();
}
real_t px_size = get_pixel_size();
Vector2 vertices[4] = {
(final_rect.position + Vector2(0, -final_rect.size.y)) * px_size,
(final_rect.position + Vector2(final_rect.size.x, -final_rect.size.y)) * px_size,
(final_rect.position + Vector2(final_rect.size.x, 0)) * px_size,
final_rect.position * px_size,
};
static const int indices[6] = {
0, 1, 2,
0, 2, 3
};
for (int j = 0; j < 6; j++) {
int i = indices[j];
Vector3 vtx;
vtx[0] = vertices[i][0];
vtx[1] = vertices[i][1];
facesw[j] = vtx;
}
triangle_mesh = Ref<TriangleMesh>(memnew(TriangleMesh));
triangle_mesh->create(faces);
return triangle_mesh;
}
void Label3D::_generate_glyph_surfaces(const Glyph &p_glyph, Vector2 &r_offset, const Color &p_modulate, int p_priority, int p_outline_size) {
for (int j = 0; j < p_glyph.repeat; j++) {
Vector2 gl_of;
Vector2 gl_sz;
Rect2 gl_uv;
Size2 texs;
RID tex;
if (p_glyph.font_rid != RID()) {
tex = TS->font_get_glyph_texture_rid(p_glyph.font_rid, Vector2i(p_glyph.font_size, p_outline_size), p_glyph.index);
if (tex != RID()) {
gl_of = (TS->font_get_glyph_offset(p_glyph.font_rid, Vector2i(p_glyph.font_size, p_outline_size), p_glyph.index) + Vector2(p_glyph.x_off, p_glyph.y_off)) * pixel_size;
gl_sz = TS->font_get_glyph_size(p_glyph.font_rid, Vector2i(p_glyph.font_size, p_outline_size), p_glyph.index) * pixel_size;
gl_uv = TS->font_get_glyph_uv_rect(p_glyph.font_rid, Vector2i(p_glyph.font_size, p_outline_size), p_glyph.index);
texs = TS->font_get_glyph_texture_size(p_glyph.font_rid, Vector2i(p_glyph.font_size, p_outline_size), p_glyph.index);
}
} else {
gl_sz = TS->get_hex_code_box_size(p_glyph.font_size, p_glyph.index) * pixel_size;
gl_of = Vector2(0, -gl_sz.y);
}
bool msdf = TS->font_is_multichannel_signed_distance_field(p_glyph.font_rid);
SurfaceKey key = SurfaceKey(tex.get_id(), p_priority, p_outline_size);
if (!surfaces.has(key)) {
SurfaceData surf;
surf.material = RenderingServer::get_singleton()->material_create();
// Set defaults for material, names need to match up those in StandardMaterial3D
RS::get_singleton()->material_set_param(surf.material, "albedo", Color(1, 1, 1, 1));
RS::get_singleton()->material_set_param(surf.material, "specular", 0.5);
RS::get_singleton()->material_set_param(surf.material, "metallic", 0.0);
RS::get_singleton()->material_set_param(surf.material, "roughness", 1.0);
RS::get_singleton()->material_set_param(surf.material, "uv1_offset", Vector3(0, 0, 0));
RS::get_singleton()->material_set_param(surf.material, "uv1_scale", Vector3(1, 1, 1));
RS::get_singleton()->material_set_param(surf.material, "uv2_offset", Vector3(0, 0, 0));
RS::get_singleton()->material_set_param(surf.material, "uv2_scale", Vector3(1, 1, 1));
RS::get_singleton()->material_set_param(surf.material, "alpha_scissor_threshold", alpha_scissor_threshold);
if (msdf) {
RS::get_singleton()->material_set_param(surf.material, "msdf_pixel_range", TS->font_get_msdf_pixel_range(p_glyph.font_rid));
RS::get_singleton()->material_set_param(surf.material, "msdf_outline_size", p_outline_size);
}
RID shader_rid;
StandardMaterial3D::get_material_for_2d(get_draw_flag(FLAG_SHADED), true, get_draw_flag(FLAG_DOUBLE_SIDED), get_alpha_cut_mode() == ALPHA_CUT_DISCARD, get_alpha_cut_mode() == ALPHA_CUT_OPAQUE_PREPASS, get_billboard_mode() == StandardMaterial3D::BILLBOARD_ENABLED, get_billboard_mode() == StandardMaterial3D::BILLBOARD_FIXED_Y, msdf, get_draw_flag(FLAG_DISABLE_DEPTH_TEST), get_draw_flag(FLAG_FIXED_SIZE), texture_filter, &shader_rid);
RS::get_singleton()->material_set_shader(surf.material, shader_rid);
RS::get_singleton()->material_set_param(surf.material, "texture_albedo", tex);
if (get_alpha_cut_mode() == ALPHA_CUT_DISABLED) {
RS::get_singleton()->material_set_render_priority(surf.material, p_priority);
} else {
surf.z_shift = p_priority * pixel_size;
}
surfaces[key] = surf;
}
SurfaceData &s = surfaces[key];
s.mesh_vertices.resize((s.offset + 1) * 4);
s.mesh_normals.resize((s.offset + 1) * 4);
s.mesh_tangents.resize((s.offset + 1) * 16);
s.mesh_colors.resize((s.offset + 1) * 4);
s.mesh_uvs.resize((s.offset + 1) * 4);
s.mesh_vertices.write[(s.offset * 4) + 3] = Vector3(r_offset.x + gl_of.x, r_offset.y - gl_of.y - gl_sz.y, s.z_shift);
s.mesh_vertices.write[(s.offset * 4) + 2] = Vector3(r_offset.x + gl_of.x + gl_sz.x, r_offset.y - gl_of.y - gl_sz.y, s.z_shift);
s.mesh_vertices.write[(s.offset * 4) + 1] = Vector3(r_offset.x + gl_of.x + gl_sz.x, r_offset.y - gl_of.y, s.z_shift);
s.mesh_vertices.write[(s.offset * 4) + 0] = Vector3(r_offset.x + gl_of.x, r_offset.y - gl_of.y, s.z_shift);
for (int i = 0; i < 4; i++) {
s.mesh_normals.write[(s.offset * 4) + i] = Vector3(0.0, 0.0, 1.0);
s.mesh_tangents.write[(s.offset * 16) + (i * 4) + 0] = 1.0;
s.mesh_tangents.write[(s.offset * 16) + (i * 4) + 1] = 0.0;
s.mesh_tangents.write[(s.offset * 16) + (i * 4) + 2] = 0.0;
s.mesh_tangents.write[(s.offset * 16) + (i * 4) + 3] = 1.0;
s.mesh_colors.write[(s.offset * 4) + i] = p_modulate;
s.mesh_uvs.write[(s.offset * 4) + i] = Vector2();
if (aabb == AABB()) {
aabb.position = s.mesh_vertices[(s.offset * 4) + i];
} else {
aabb.expand_to(s.mesh_vertices[(s.offset * 4) + i]);
}
}
if (tex != RID()) {
s.mesh_uvs.write[(s.offset * 4) + 3] = Vector2(gl_uv.position.x / texs.x, (gl_uv.position.y + gl_uv.size.y) / texs.y);
s.mesh_uvs.write[(s.offset * 4) + 2] = Vector2((gl_uv.position.x + gl_uv.size.x) / texs.x, (gl_uv.position.y + gl_uv.size.y) / texs.y);
s.mesh_uvs.write[(s.offset * 4) + 1] = Vector2((gl_uv.position.x + gl_uv.size.x) / texs.x, gl_uv.position.y / texs.y);
s.mesh_uvs.write[(s.offset * 4) + 0] = Vector2(gl_uv.position.x / texs.x, gl_uv.position.y / texs.y);
}
s.indices.resize((s.offset + 1) * 6);
s.indices.write[(s.offset * 6) + 0] = (s.offset * 4) + 0;
s.indices.write[(s.offset * 6) + 1] = (s.offset * 4) + 1;
s.indices.write[(s.offset * 6) + 2] = (s.offset * 4) + 2;
s.indices.write[(s.offset * 6) + 3] = (s.offset * 4) + 0;
s.indices.write[(s.offset * 6) + 4] = (s.offset * 4) + 2;
s.indices.write[(s.offset * 6) + 5] = (s.offset * 4) + 3;
s.offset++;
r_offset.x += p_glyph.advance * pixel_size;
}
}
void Label3D::_shape() {
// Clear mesh.
RS::get_singleton()->mesh_clear(mesh);
aabb = AABB();
// Clear materials.
for (const KeyValue<SurfaceKey, SurfaceData> &E : surfaces) {
RenderingServer::get_singleton()->free(E.value.material);
}
surfaces.clear();
Ref<Font> font = _get_font_or_default();
ERR_FAIL_COND(font.is_null());
// Update text buffer.
if (dirty_text) {
TS->shaped_text_clear(text_rid);
TS->shaped_text_set_direction(text_rid, text_direction);
String txt = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text;
TS->shaped_text_add_string(text_rid, txt, font->get_rids(), font_size, font->get_opentype_features(), language);
for (int i = 0; i < TextServer::SPACING_MAX; i++) {
TS->shaped_text_set_spacing(text_rid, TextServer::SpacingType(i), font->get_spacing(TextServer::SpacingType(i)));
}
TypedArray<Vector2i> stt;
if (st_parser == TextServer::STRUCTURED_TEXT_CUSTOM) {
GDVIRTUAL_CALL(_structured_text_parser, st_args, txt, stt);
} else {
stt = TS->parse_structured_text(st_parser, st_args, txt);
}
TS->shaped_text_set_bidi_override(text_rid, stt);
dirty_text = false;
dirty_font = false;
dirty_lines = true;
} else if (dirty_font) {
int spans = TS->shaped_get_span_count(text_rid);
for (int i = 0; i < spans; i++) {
TS->shaped_set_span_update_font(text_rid, i, font->get_rids(), font_size, font->get_opentype_features());
}
for (int i = 0; i < TextServer::SPACING_MAX; i++) {
TS->shaped_text_set_spacing(text_rid, TextServer::SpacingType(i), font->get_spacing(TextServer::SpacingType(i)));
}
dirty_font = false;
dirty_lines = true;
}
if (dirty_lines) {
for (int i = 0; i < lines_rid.size(); i++) {
TS->free_rid(lines_rid[i]);
}
lines_rid.clear();
BitField<TextServer::LineBreakFlag> autowrap_flags = TextServer::BREAK_MANDATORY;
switch (autowrap_mode) {
case TextServer::AUTOWRAP_WORD_SMART:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_ADAPTIVE | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_WORD:
autowrap_flags = TextServer::BREAK_WORD_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_ARBITRARY:
autowrap_flags = TextServer::BREAK_GRAPHEME_BOUND | TextServer::BREAK_MANDATORY;
break;
case TextServer::AUTOWRAP_OFF:
break;
}
autowrap_flags = autowrap_flags | TextServer::BREAK_TRIM_EDGE_SPACES;
PackedInt32Array line_breaks = TS->shaped_text_get_line_breaks(text_rid, width, 0, autowrap_flags);
float max_line_w = 0.0;
for (int i = 0; i < line_breaks.size(); i = i + 2) {
RID line = TS->shaped_text_substr(text_rid, line_breaks[i], line_breaks[i + 1] - line_breaks[i]);
max_line_w = MAX(max_line_w, TS->shaped_text_get_width(line));
lines_rid.push_back(line);
}
if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL) {
for (int i = 0; i < lines_rid.size() - 1; i++) {
TS->shaped_text_fit_to_width(lines_rid[i], (width > 0) ? width : max_line_w, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA);
}
}
dirty_lines = false;
}
// Generate surfaces and materials.
float total_h = 0.0;
for (int i = 0; i < lines_rid.size(); i++) {
total_h += (TS->shaped_text_get_size(lines_rid[i]).y + line_spacing) * pixel_size;
}
float vbegin = 0.0;
switch (vertical_alignment) {
case VERTICAL_ALIGNMENT_FILL:
case VERTICAL_ALIGNMENT_TOP: {
// Nothing.
} break;
case VERTICAL_ALIGNMENT_CENTER: {
vbegin = (total_h - line_spacing * pixel_size) / 2.0;
} break;
case VERTICAL_ALIGNMENT_BOTTOM: {
vbegin = (total_h - line_spacing * pixel_size);
} break;
}
Vector2 offset = Vector2(0, vbegin + lbl_offset.y * pixel_size);
for (int i = 0; i < lines_rid.size(); i++) {
const Glyph *glyphs = TS->shaped_text_get_glyphs(lines_rid[i]);
int gl_size = TS->shaped_text_get_glyph_count(lines_rid[i]);
float line_width = TS->shaped_text_get_width(lines_rid[i]) * pixel_size;
switch (horizontal_alignment) {
case HORIZONTAL_ALIGNMENT_LEFT:
offset.x = 0.0;
break;
case HORIZONTAL_ALIGNMENT_FILL:
case HORIZONTAL_ALIGNMENT_CENTER: {
offset.x = -line_width / 2.0;
} break;
case HORIZONTAL_ALIGNMENT_RIGHT: {
offset.x = -line_width;
} break;
}
offset.x += lbl_offset.x * pixel_size;
offset.y -= TS->shaped_text_get_ascent(lines_rid[i]) * pixel_size;
if (outline_modulate.a != 0.0 && outline_size > 0) {
// Outline surfaces.
Vector2 ol_offset = offset;
for (int j = 0; j < gl_size; j++) {
_generate_glyph_surfaces(glyphs[j], ol_offset, outline_modulate, outline_render_priority, outline_size);
}
}
// Main text surfaces.
for (int j = 0; j < gl_size; j++) {
_generate_glyph_surfaces(glyphs[j], offset, modulate, render_priority);
}
offset.y -= (TS->shaped_text_get_descent(lines_rid[i]) + line_spacing) * pixel_size;
}
for (const KeyValue<SurfaceKey, SurfaceData> &E : surfaces) {
Array mesh_array;
mesh_array.resize(RS::ARRAY_MAX);
mesh_array[RS::ARRAY_VERTEX] = E.value.mesh_vertices;
mesh_array[RS::ARRAY_NORMAL] = E.value.mesh_normals;
mesh_array[RS::ARRAY_TANGENT] = E.value.mesh_tangents;
mesh_array[RS::ARRAY_COLOR] = E.value.mesh_colors;
mesh_array[RS::ARRAY_TEX_UV] = E.value.mesh_uvs;
mesh_array[RS::ARRAY_INDEX] = E.value.indices;
RS::SurfaceData sd;
RS::get_singleton()->mesh_create_surface_data_from_arrays(&sd, RS::PRIMITIVE_TRIANGLES, mesh_array);
sd.material = E.value.material;
RS::get_singleton()->mesh_add_surface(mesh, sd);
}
}
void Label3D::set_text(const String &p_string) {
text = p_string;
xl_text = tr(p_string);
dirty_text = true;
_queue_update();
}
String Label3D::get_text() const {
return text;
}
void Label3D::set_horizontal_alignment(HorizontalAlignment p_alignment) {
ERR_FAIL_INDEX((int)p_alignment, 4);
if (horizontal_alignment != p_alignment) {
if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL || p_alignment == HORIZONTAL_ALIGNMENT_FILL) {
dirty_lines = true; // Reshape lines.
}
horizontal_alignment = p_alignment;
_queue_update();
}
}
HorizontalAlignment Label3D::get_horizontal_alignment() const {
return horizontal_alignment;
}
void Label3D::set_vertical_alignment(VerticalAlignment p_alignment) {
ERR_FAIL_INDEX((int)p_alignment, 4);
if (vertical_alignment != p_alignment) {
vertical_alignment = p_alignment;
_queue_update();
}
}
VerticalAlignment Label3D::get_vertical_alignment() const {
return vertical_alignment;
}
void Label3D::set_text_direction(TextServer::Direction p_text_direction) {
ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
if (text_direction != p_text_direction) {
text_direction = p_text_direction;
dirty_text = true;
_queue_update();
}
}
TextServer::Direction Label3D::get_text_direction() const {
return text_direction;
}
void Label3D::set_language(const String &p_language) {
if (language != p_language) {
language = p_language;
dirty_text = true;
_queue_update();
}
}
String Label3D::get_language() const {
return language;
}
void Label3D::set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser) {
if (st_parser != p_parser) {
st_parser = p_parser;
dirty_text = true;
_queue_update();
}
}
TextServer::StructuredTextParser Label3D::get_structured_text_bidi_override() const {
return st_parser;
}
void Label3D::set_structured_text_bidi_override_options(Array p_args) {
if (st_args != p_args) {
st_args = p_args;
dirty_text = true;
_queue_update();
}
}
Array Label3D::get_structured_text_bidi_override_options() const {
return st_args;
}
void Label3D::set_uppercase(bool p_uppercase) {
if (uppercase != p_uppercase) {
uppercase = p_uppercase;
dirty_text = true;
_queue_update();
}
}
bool Label3D::is_uppercase() const {
return uppercase;
}
void Label3D::set_render_priority(int p_priority) {
ERR_FAIL_COND(p_priority < RS::MATERIAL_RENDER_PRIORITY_MIN || p_priority > RS::MATERIAL_RENDER_PRIORITY_MAX);
if (render_priority != p_priority) {
render_priority = p_priority;
_queue_update();
}
}
int Label3D::get_render_priority() const {
return render_priority;
}
void Label3D::set_outline_render_priority(int p_priority) {
ERR_FAIL_COND(p_priority < RS::MATERIAL_RENDER_PRIORITY_MIN || p_priority > RS::MATERIAL_RENDER_PRIORITY_MAX);
if (outline_render_priority != p_priority) {
outline_render_priority = p_priority;
_queue_update();
}
}
int Label3D::get_outline_render_priority() const {
return outline_render_priority;
}
void Label3D::_font_changed() {
dirty_font = true;
_queue_update();
}
void Label3D::set_font(const Ref<Font> &p_font) {
if (font_override != p_font) {
if (font_override.is_valid()) {
font_override->disconnect(CoreStringNames::get_singleton()->changed, Callable(this, "_font_changed"));
}
font_override = p_font;
dirty_font = true;
if (font_override.is_valid()) {
font_override->connect(CoreStringNames::get_singleton()->changed, Callable(this, "_font_changed"));
}
_queue_update();
}
}
Ref<Font> Label3D::get_font() const {
return font_override;
}
Ref<Font> Label3D::_get_font_or_default() const {
if (theme_font.is_valid()) {
theme_font->disconnect(CoreStringNames::get_singleton()->changed, Callable(const_cast<Label3D *>(this), "_font_changed"));
theme_font.unref();
}
if (font_override.is_valid()) {
return font_override;
}
// Check the project-defined Theme resource.
if (ThemeDB::get_singleton()->get_project_theme().is_valid()) {
List<StringName> theme_types;
ThemeDB::get_singleton()->get_project_theme()->get_type_dependencies(get_class_name(), StringName(), &theme_types);
for (const StringName &E : theme_types) {
if (ThemeDB::get_singleton()->get_project_theme()->has_theme_item(Theme::DATA_TYPE_FONT, "font", E)) {
Ref<Font> f = ThemeDB::get_singleton()->get_project_theme()->get_theme_item(Theme::DATA_TYPE_FONT, "font", E);
if (f.is_valid()) {
theme_font = f;
theme_font->connect(CoreStringNames::get_singleton()->changed, Callable(const_cast<Label3D *>(this), "_font_changed"));
}
return f;
}
}
}
// Lastly, fall back on the items defined in the default Theme, if they exist.
{
List<StringName> theme_types;
ThemeDB::get_singleton()->get_default_theme()->get_type_dependencies(get_class_name(), StringName(), &theme_types);
for (const StringName &E : theme_types) {
if (ThemeDB::get_singleton()->get_default_theme()->has_theme_item(Theme::DATA_TYPE_FONT, "font", E)) {
Ref<Font> f = ThemeDB::get_singleton()->get_default_theme()->get_theme_item(Theme::DATA_TYPE_FONT, "font", E);
if (f.is_valid()) {
theme_font = f;
theme_font->connect(CoreStringNames::get_singleton()->changed, Callable(const_cast<Label3D *>(this), "_font_changed"));
}
return f;
}
}
}
// If they don't exist, use any type to return the default/empty value.
Ref<Font> f = ThemeDB::get_singleton()->get_default_theme()->get_theme_item(Theme::DATA_TYPE_FONT, "font", StringName());
if (f.is_valid()) {
theme_font = f;
theme_font->connect(CoreStringNames::get_singleton()->changed, Callable(const_cast<Label3D *>(this), "_font_changed"));
}
return f;
}
void Label3D::set_font_size(int p_size) {
if (font_size != p_size) {
font_size = p_size;
dirty_font = true;
_queue_update();
}
}
int Label3D::get_font_size() const {
return font_size;
}
void Label3D::set_outline_size(int p_size) {
if (outline_size != p_size) {
outline_size = p_size;
_queue_update();
}
}
int Label3D::get_outline_size() const {
return outline_size;
}
void Label3D::set_modulate(const Color &p_color) {
if (modulate != p_color) {
modulate = p_color;
_queue_update();
}
}
Color Label3D::get_modulate() const {
return modulate;
}
void Label3D::set_outline_modulate(const Color &p_color) {
if (outline_modulate != p_color) {
outline_modulate = p_color;
_queue_update();
}
}
Color Label3D::get_outline_modulate() const {
return outline_modulate;
}
void Label3D::set_autowrap_mode(TextServer::AutowrapMode p_mode) {
if (autowrap_mode != p_mode) {
autowrap_mode = p_mode;
dirty_lines = true;
_queue_update();
}
}
TextServer::AutowrapMode Label3D::get_autowrap_mode() const {
return autowrap_mode;
}
void Label3D::set_width(float p_width) {
if (width != p_width) {
width = p_width;
dirty_lines = true;
_queue_update();
}
}
float Label3D::get_width() const {
return width;
}
void Label3D::set_pixel_size(real_t p_amount) {
if (pixel_size != p_amount) {
pixel_size = p_amount;
_queue_update();
}
}
real_t Label3D::get_pixel_size() const {
return pixel_size;
}
void Label3D::set_offset(const Point2 &p_offset) {
if (lbl_offset != p_offset) {
lbl_offset = p_offset;
_queue_update();
}
}
Point2 Label3D::get_offset() const {
return lbl_offset;
}
void Label3D::set_line_spacing(float p_line_spacing) {
if (line_spacing != p_line_spacing) {
line_spacing = p_line_spacing;
_queue_update();
}
}
float Label3D::get_line_spacing() const {
return line_spacing;
}
void Label3D::set_draw_flag(DrawFlags p_flag, bool p_enable) {
ERR_FAIL_INDEX(p_flag, FLAG_MAX);
if (flags[p_flag] != p_enable) {
flags[p_flag] = p_enable;
_queue_update();
}
}
bool Label3D::get_draw_flag(DrawFlags p_flag) const {
ERR_FAIL_INDEX_V(p_flag, FLAG_MAX, false);
return flags[p_flag];
}
void Label3D::set_billboard_mode(StandardMaterial3D::BillboardMode p_mode) {
ERR_FAIL_INDEX(p_mode, 3);
if (billboard_mode != p_mode) {
billboard_mode = p_mode;
_queue_update();
}
}
StandardMaterial3D::BillboardMode Label3D::get_billboard_mode() const {
return billboard_mode;
}
void Label3D::set_alpha_cut_mode(AlphaCutMode p_mode) {
ERR_FAIL_INDEX(p_mode, 3);
if (alpha_cut != p_mode) {
alpha_cut = p_mode;
_queue_update();
notify_property_list_changed();
}
}
void Label3D::set_texture_filter(StandardMaterial3D::TextureFilter p_filter) {
if (texture_filter != p_filter) {
texture_filter = p_filter;
_queue_update();
}
}
StandardMaterial3D::TextureFilter Label3D::get_texture_filter() const {
return texture_filter;
}
Label3D::AlphaCutMode Label3D::get_alpha_cut_mode() const {
return alpha_cut;
}
void Label3D::set_alpha_scissor_threshold(float p_threshold) {
if (alpha_scissor_threshold != p_threshold) {
alpha_scissor_threshold = p_threshold;
_queue_update();
}
}
float Label3D::get_alpha_scissor_threshold() const {
return alpha_scissor_threshold;
}
Label3D::Label3D() {
for (int i = 0; i < FLAG_MAX; i++) {
flags[i] = (i == FLAG_DOUBLE_SIDED);
}
text_rid = TS->create_shaped_text();
mesh = RenderingServer::get_singleton()->mesh_create();
// Disable shadow casting by default to improve performance and avoid unintended visual artifacts.
set_cast_shadows_setting(SHADOW_CASTING_SETTING_OFF);
// Label3D can't contribute to GI in any way, so disable it to improve performance.
set_gi_mode(GI_MODE_DISABLED);
set_base(mesh);
}
Label3D::~Label3D() {
for (int i = 0; i < lines_rid.size(); i++) {
TS->free_rid(lines_rid[i]);
}
lines_rid.clear();
TS->free_rid(text_rid);
ERR_FAIL_NULL(RenderingServer::get_singleton());
RenderingServer::get_singleton()->free(mesh);
for (KeyValue<SurfaceKey, SurfaceData> E : surfaces) {
RenderingServer::get_singleton()->free(E.value.material);
}
surfaces.clear();
}
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