From 05963674a7a59ae949095173da7278044e58ced8 Mon Sep 17 00:00:00 2001 From: bruvzg <7645683+bruvzg@users.noreply.github.com> Date: Mon, 25 Apr 2022 13:14:30 +0300 Subject: Implement TextMesh resource. Apply simulated slant and embolden to the TextServer `gont_get_glyph_contours` results. --- scene/resources/primitive_meshes.cpp | 821 +++++++++++++++++++++++++++++++++++ scene/resources/primitive_meshes.h | 126 ++++++ 2 files changed, 947 insertions(+) (limited to 'scene/resources') diff --git a/scene/resources/primitive_meshes.cpp b/scene/resources/primitive_meshes.cpp index c9a890194d..3009bdb449 100644 --- a/scene/resources/primitive_meshes.cpp +++ b/scene/resources/primitive_meshes.cpp @@ -29,7 +29,12 @@ /*************************************************************************/ #include "primitive_meshes.h" + +#include "core/core_string_names.h" +#include "scene/resources/theme.h" #include "servers/rendering_server.h" +#include "thirdparty/misc/clipper.hpp" +#include "thirdparty/misc/polypartition.h" /** PrimitiveMesh @@ -2151,3 +2156,819 @@ void RibbonTrailMesh::_bind_methods() { RibbonTrailMesh::RibbonTrailMesh() { } + +/*************************************************************************/ +/* TextMesh */ +/*************************************************************************/ + +void TextMesh::_generate_glyph_mesh_data(uint32_t p_hash, const Glyph &p_gl) const { + if (cache.has(p_hash)) { + return; + } + + GlyphMeshData &gl_data = cache[p_hash]; + + Dictionary d = TS->font_get_glyph_contours(p_gl.font_rid, p_gl.font_size, p_gl.index); + Vector2 origin = Vector2(p_gl.x_off, p_gl.y_off) * pixel_size; + + PackedVector3Array points = d["points"]; + PackedInt32Array contours = d["contours"]; + bool orientation = d["orientation"]; + + if (points.size() < 3 || contours.size() < 1) { + return; // No full contours, only glyph control points (or nothing), ignore. + } + + // Approximate Bezier curves as polygons. + // See https://freetype.org/freetype2/docs/glyphs/glyphs-6.html, for more info. + for (int i = 0; i < contours.size(); i++) { + int32_t start = (i == 0) ? 0 : (contours[i - 1] + 1); + int32_t end = contours[i]; + Vector polygon; + + for (int32_t j = start; j <= end; j++) { + if (points[j].z == TextServer::CONTOUR_CURVE_TAG_ON) { + // Point on the curve. + Vector2 p = Vector2(points[j].x, points[j].y) * pixel_size + origin; + polygon.push_back(ContourPoint(p, true)); + } else if (points[j].z == TextServer::CONTOUR_CURVE_TAG_OFF_CONIC) { + // Conic Bezier arc. + int32_t next = (j == end) ? start : (j + 1); + int32_t prev = (j == start) ? end : (j - 1); + Vector2 p0; + Vector2 p1 = Vector2(points[j].x, points[j].y); + Vector2 p2; + + // For successive conic OFF points add a virtual ON point in the middle. + if (points[prev].z == TextServer::CONTOUR_CURVE_TAG_OFF_CONIC) { + p0 = (Vector2(points[prev].x, points[prev].y) + Vector2(points[j].x, points[j].y)) / 2.0; + } else if (points[prev].z == TextServer::CONTOUR_CURVE_TAG_ON) { + p0 = Vector2(points[prev].x, points[prev].y); + } else { + ERR_FAIL_MSG(vformat("Invalid conic arc point sequence at %d:%d", i, j)); + } + if (points[next].z == TextServer::CONTOUR_CURVE_TAG_OFF_CONIC) { + p2 = (Vector2(points[j].x, points[j].y) + Vector2(points[next].x, points[next].y)) / 2.0; + } else if (points[next].z == TextServer::CONTOUR_CURVE_TAG_ON) { + p2 = Vector2(points[next].x, points[next].y); + } else { + ERR_FAIL_MSG(vformat("Invalid conic arc point sequence at %d:%d", i, j)); + } + + real_t step = CLAMP(curve_step / (p0 - p2).length(), 0.01, 0.5); + real_t t = step; + while (t < 1.0) { + real_t omt = (1.0 - t); + real_t omt2 = omt * omt; + real_t t2 = t * t; + + Vector2 point = p1 + omt2 * (p0 - p1) + t2 * (p2 - p1); + Vector2 p = point * pixel_size + origin; + polygon.push_back(ContourPoint(p, false)); + t += step; + } + } else if (points[j].z == TextServer::CONTOUR_CURVE_TAG_OFF_CUBIC) { + // Cubic Bezier arc. + int32_t next1 = (j == end) ? start : (j + 1); + int32_t next2 = (next1 == end) ? start : (next1 + 1); + int32_t prev = (j == start) ? end : (j - 1); + + // There must be exactly two OFF points and two ON points for each cubic arc. + ERR_FAIL_COND_MSG(points[prev].z != TextServer::CONTOUR_CURVE_TAG_ON, vformat("Invalid cubic arc point sequence at %d:%d", i, prev)); + ERR_FAIL_COND_MSG(points[next1].z != TextServer::CONTOUR_CURVE_TAG_OFF_CUBIC, vformat("Invalid cubic arc point sequence at %d:%d", i, next1)); + ERR_FAIL_COND_MSG(points[next2].z != TextServer::CONTOUR_CURVE_TAG_ON, vformat("Invalid cubic arc point sequence at %d:%d", i, next2)); + + Vector2 p0 = Vector2(points[prev].x, points[prev].y); + Vector2 p1 = Vector2(points[j].x, points[j].y); + Vector2 p2 = Vector2(points[next1].x, points[next1].y); + Vector2 p3 = Vector2(points[next2].x, points[next2].y); + + real_t step = CLAMP(curve_step / (p0 - p3).length(), 0.01, 0.5); + real_t t = step; + while (t < 1.0) { + real_t omt = (1.0 - t); + real_t omt2 = omt * omt; + real_t omt3 = omt2 * omt; + real_t t2 = t * t; + real_t t3 = t2 * t; + + Vector2 point = p0 * omt3 + p1 * omt2 * t * 3.0 + p2 * omt * t2 * 3.0 + p3 * t3; + Vector2 p = point * pixel_size + origin; + polygon.push_back(ContourPoint(p, false)); + t += step; + } + i++; + } else { + ERR_FAIL_MSG(vformat("Unknown point tag at %d:%d", i, j)); + } + } + + if (polygon.size() < 3) { + continue; // Skip glyph control points. + } + + if (!orientation) { + polygon.reverse(); + } + + gl_data.contours.push_back(polygon); + } + + // Calculate bounds. + List in_poly; + for (int i = 0; i < gl_data.contours.size(); i++) { + TPPLPoly inp; + inp.Init(gl_data.contours[i].size()); + real_t length = 0.0; + for (int j = 0; j < gl_data.contours[i].size(); j++) { + int next = (j + 1 == gl_data.contours[i].size()) ? 0 : (j + 1); + + gl_data.min_p.x = MIN(gl_data.min_p.x, gl_data.contours[i][j].point.x); + gl_data.min_p.y = MIN(gl_data.min_p.y, gl_data.contours[i][j].point.y); + gl_data.max_p.x = MAX(gl_data.max_p.x, gl_data.contours[i][j].point.x); + gl_data.max_p.y = MAX(gl_data.max_p.y, gl_data.contours[i][j].point.y); + length += (gl_data.contours[i][next].point - gl_data.contours[i][j].point).length(); + + inp.GetPoint(j) = gl_data.contours[i][j].point; + } + TPPLOrientation poly_orient = inp.GetOrientation(); + if (poly_orient == TPPL_ORIENTATION_CW) { + inp.SetHole(true); + } + in_poly.push_back(inp); + gl_data.contours_info.push_back(ContourInfo(length, poly_orient == TPPL_ORIENTATION_CCW)); + } + + TPPLPartition tpart; + + //Decompose and triangulate. + List out_poly; + if (tpart.ConvexPartition_HM(&in_poly, &out_poly) == 0) { + ERR_FAIL_MSG("Convex decomposing failed!"); + } + List out_tris; + for (List::Element *I = out_poly.front(); I; I = I->next()) { + if (tpart.Triangulate_OPT(&(I->get()), &out_tris) == 0) { + ERR_FAIL_MSG("Triangulation failed!"); + } + } + + for (List::Element *I = out_tris.front(); I; I = I->next()) { + TPPLPoly &tp = I->get(); + ERR_FAIL_COND(tp.GetNumPoints() != 3); // Trianges only. + + for (int i = 0; i < 3; i++) { + gl_data.triangles.push_back(Vector2(tp.GetPoint(i).x, tp.GetPoint(i).y)); + } + } +} + +void TextMesh::_create_mesh_array(Array &p_arr) const { + Ref font = _get_font_or_default(); + ERR_FAIL_COND(font.is_null()); + + if (dirty_cache) { + cache.clear(); + dirty_cache = false; + } + + // Update text buffer. + if (dirty_text) { + TS->shaped_text_clear(text_rid); + TS->shaped_text_set_direction(text_rid, text_direction); + + String text = (uppercase) ? TS->string_to_upper(xl_text, language) : xl_text; + TS->shaped_text_add_string(text_rid, text, font->get_rids(), font_size, opentype_features, language); + + Array stt; + if (st_parser == TextServer::STRUCTURED_TEXT_CUSTOM) { + GDVIRTUAL_CALL(_structured_text_parser, st_args, text, stt); + } else { + stt = TS->parse_structured_text(st_parser, st_args, text); + } + TS->shaped_text_set_bidi_override(text_rid, stt); + + dirty_text = false; + dirty_font = false; + } 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, opentype_features); + } + + dirty_font = false; + } + if (horizontal_alignment == HORIZONTAL_ALIGNMENT_FILL) { + TS->shaped_text_fit_to_width(text_rid, width, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA); + } else { + TS->shaped_text_fit_to_width(text_rid, -1, TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA); + } + + Vector2 offset; + const Glyph *glyphs = TS->shaped_text_get_glyphs(text_rid); + int gl_size = TS->shaped_text_get_glyph_count(text_rid); + float line_width = TS->shaped_text_get_width(text_rid) * 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; + } + + bool has_depth = !Math::is_zero_approx(depth); + + // Generate glyph data, precalculate size of the arrays and mesh bounds for UV. + int64_t p_size = 0; + int64_t i_size = 0; + + Vector2 min_p = Vector2(INFINITY, INFINITY); + Vector2 max_p = Vector2(-INFINITY, -INFINITY); + + Vector2 offset_pre = offset; + for (int i = 0; i < gl_size; i++) { + if (glyphs[i].font_rid != RID()) { + uint32_t hash = hash_one_uint64(glyphs[i].font_rid.get_id()); + hash = hash_djb2_one_32(glyphs[i].index, hash); + + _generate_glyph_mesh_data(hash, glyphs[i]); + GlyphMeshData &gl_data = cache[hash]; + + p_size += glyphs[i].repeat * gl_data.triangles.size() * ((has_depth) ? 2 : 1); + i_size += glyphs[i].repeat * gl_data.triangles.size() * ((has_depth) ? 2 : 1); + + if (has_depth) { + for (int j = 0; j < gl_data.contours.size(); j++) { + p_size += glyphs[i].repeat * gl_data.contours[j].size() * 4; + i_size += glyphs[i].repeat * gl_data.contours[j].size() * 6; + } + } + + for (int j = 0; j < glyphs[i].repeat; j++) { + min_p.x = MIN(gl_data.min_p.x + offset_pre.x, min_p.x); + min_p.y = MIN(gl_data.min_p.y + offset_pre.y, min_p.y); + max_p.x = MAX(gl_data.max_p.x + offset_pre.x, max_p.x); + max_p.y = MAX(gl_data.max_p.y + offset_pre.y, max_p.y); + + offset_pre.x += glyphs[i].advance * pixel_size; + } + } else { + p_size += glyphs[i].repeat * 4; + i_size += glyphs[i].repeat * 6; + + offset_pre.x += glyphs[i].advance * pixel_size * glyphs[i].repeat; + } + } + + Vector vertices; + Vector normals; + Vector tangents; + Vector uvs; + Vector indices; + + vertices.resize(p_size); + normals.resize(p_size); + uvs.resize(p_size); + tangents.resize(p_size * 4); + indices.resize(i_size); + + Vector3 *vertices_ptr = vertices.ptrw(); + Vector3 *normals_ptr = normals.ptrw(); + float *tangents_ptr = tangents.ptrw(); + Vector2 *uvs_ptr = uvs.ptrw(); + int32_t *indices_ptr = indices.ptrw(); + + // Generate mesh. + int32_t p_idx = 0; + int32_t i_idx = 0; + for (int i = 0; i < gl_size; i++) { + if (glyphs[i].font_rid != RID()) { + uint32_t hash = hash_one_uint64(glyphs[i].font_rid.get_id()); + hash = hash_djb2_one_32(glyphs[i].index, hash); + + const GlyphMeshData &gl_data = cache[hash]; + + int64_t ts = gl_data.triangles.size(); + const Vector2 *ts_ptr = gl_data.triangles.ptr(); + + for (int j = 0; j < glyphs[i].repeat; j++) { + for (int k = 0; k < ts; k += 3) { + // Add front face. + for (int l = 0; l < 3; l++) { + Vector3 point = Vector3(ts_ptr[k + l].x + offset.x, -ts_ptr[k + l].y + offset.y, depth / 2.0); + vertices_ptr[p_idx] = point; + normals_ptr[p_idx] = Vector3(0.0, 0.0, 1.0); + if (has_depth) { + uvs_ptr[p_idx] = Vector2(Math::range_lerp(point.x, min_p.x, max_p.x, real_t(0.0), real_t(1.0)), Math::range_lerp(point.y, -min_p.y, -max_p.y, real_t(0.0), real_t(0.4))); + } else { + uvs_ptr[p_idx] = Vector2(Math::range_lerp(point.x, min_p.x, max_p.x, real_t(0.0), real_t(1.0)), Math::range_lerp(point.y, -min_p.y, -max_p.y, real_t(0.0), real_t(1.0))); + } + tangents_ptr[p_idx * 4 + 0] = 1.0; + tangents_ptr[p_idx * 4 + 1] = 0.0; + tangents_ptr[p_idx * 4 + 2] = 0.0; + tangents_ptr[p_idx * 4 + 3] = 1.0; + indices_ptr[i_idx++] = p_idx; + p_idx++; + } + if (has_depth) { + // Add back face. + for (int l = 2; l >= 0; l--) { + Vector3 point = Vector3(ts_ptr[k + l].x + offset.x, -ts_ptr[k + l].y + offset.y, -depth / 2.0); + vertices_ptr[p_idx] = point; + normals_ptr[p_idx] = Vector3(0.0, 0.0, -1.0); + uvs_ptr[p_idx] = Vector2(Math::range_lerp(point.x, min_p.x, max_p.x, real_t(0.0), real_t(1.0)), Math::range_lerp(point.y, -min_p.y, -max_p.y, real_t(0.4), real_t(0.8))); + tangents_ptr[p_idx * 4 + 0] = -1.0; + tangents_ptr[p_idx * 4 + 1] = 0.0; + tangents_ptr[p_idx * 4 + 2] = 0.0; + tangents_ptr[p_idx * 4 + 3] = 1.0; + indices_ptr[i_idx++] = p_idx; + p_idx++; + } + } + } + // Add sides. + if (has_depth) { + for (int k = 0; k < gl_data.contours.size(); k++) { + int64_t ps = gl_data.contours[k].size(); + const ContourPoint *ps_ptr = gl_data.contours[k].ptr(); + const ContourInfo &ps_info = gl_data.contours_info[k]; + real_t length = 0.0; + for (int l = 0; l < ps; l++) { + int prev = (l == 0) ? (ps - 1) : (l - 1); + int next = (l + 1 == ps) ? 0 : (l + 1); + Vector2 d1; + Vector2 d2 = (ps_ptr[next].point - ps_ptr[l].point).normalized(); + if (ps_ptr[l].sharp) { + d1 = d2; + } else { + d1 = (ps_ptr[l].point - ps_ptr[prev].point).normalized(); + } + real_t seg_len = (ps_ptr[next].point - ps_ptr[l].point).length(); + + Vector3 quad_faces[4] = { + Vector3(ps_ptr[l].point.x + offset.x, -ps_ptr[l].point.y + offset.y, -depth / 2.0), + Vector3(ps_ptr[next].point.x + offset.x, -ps_ptr[next].point.y + offset.y, -depth / 2.0), + Vector3(ps_ptr[l].point.x + offset.x, -ps_ptr[l].point.y + offset.y, depth / 2.0), + Vector3(ps_ptr[next].point.x + offset.x, -ps_ptr[next].point.y + offset.y, depth / 2.0), + }; + for (int m = 0; m < 4; m++) { + const Vector2 &d = ((m % 2) == 0) ? d1 : d2; + real_t u_pos = ((m % 2) == 0) ? length : length + seg_len; + vertices_ptr[p_idx + m] = quad_faces[m]; + normals_ptr[p_idx + m] = Vector3(d.y, d.x, 0.0); + if (m < 2) { + uvs_ptr[p_idx + m] = Vector2(Math::range_lerp(u_pos, 0, ps_info.length, real_t(0.0), real_t(1.0)), (ps_info.ccw) ? 0.8 : 0.9); + } else { + uvs_ptr[p_idx + m] = Vector2(Math::range_lerp(u_pos, 0, ps_info.length, real_t(0.0), real_t(1.0)), (ps_info.ccw) ? 0.9 : 1.0); + } + tangents_ptr[(p_idx + m) * 4 + 0] = d.x; + tangents_ptr[(p_idx + m) * 4 + 1] = -d.y; + tangents_ptr[(p_idx + m) * 4 + 2] = 0.0; + tangents_ptr[(p_idx + m) * 4 + 3] = 1.0; + } + + indices_ptr[i_idx++] = p_idx; + indices_ptr[i_idx++] = p_idx + 1; + indices_ptr[i_idx++] = p_idx + 2; + + indices_ptr[i_idx++] = p_idx + 1; + indices_ptr[i_idx++] = p_idx + 3; + indices_ptr[i_idx++] = p_idx + 2; + + length += seg_len; + p_idx += 4; + } + } + } + offset.x += glyphs[i].advance * pixel_size; + } + } else { + // Add fallback quad for missing glyphs. + for (int j = 0; j < glyphs[i].repeat; j++) { + Size2 sz = TS->get_hex_code_box_size(glyphs[i].font_size, glyphs[i].index) * pixel_size; + Vector3 quad_faces[4] = { + Vector3(offset.x, offset.y, 0.0), + Vector3(offset.x, sz.y + offset.y, 0.0), + Vector3(sz.x + offset.x, sz.y + offset.y, 0.0), + Vector3(sz.x + offset.x, offset.y, 0.0), + }; + for (int k = 0; k < 4; k++) { + vertices_ptr[p_idx + k] = quad_faces[k]; + normals_ptr[p_idx + k] = Vector3(0.0, 0.0, 1.0); + if (has_depth) { + uvs_ptr[p_idx + k] = Vector2(Math::range_lerp(quad_faces[k].x, min_p.x, max_p.x, real_t(0.0), real_t(1.0)), Math::range_lerp(quad_faces[k].y, -min_p.y, -max_p.y, real_t(0.0), real_t(0.4))); + } else { + uvs_ptr[p_idx + k] = Vector2(Math::range_lerp(quad_faces[k].x, min_p.x, max_p.x, real_t(0.0), real_t(1.0)), Math::range_lerp(quad_faces[k].y, -min_p.y, -max_p.y, real_t(0.0), real_t(1.0))); + } + tangents_ptr[(p_idx + k) * 4 + 0] = 1.0; + tangents_ptr[(p_idx + k) * 4 + 1] = 0.0; + tangents_ptr[(p_idx + k) * 4 + 2] = 0.0; + tangents_ptr[(p_idx + k) * 4 + 3] = 1.0; + } + + indices_ptr[i_idx++] = p_idx; + indices_ptr[i_idx++] = p_idx + 1; + indices_ptr[i_idx++] = p_idx + 2; + + indices_ptr[i_idx++] = p_idx + 0; + indices_ptr[i_idx++] = p_idx + 2; + indices_ptr[i_idx++] = p_idx + 3; + p_idx += 4; + + offset.x += glyphs[i].advance * pixel_size; + } + } + } + + if (p_size == 0) { + // If empty, add single trinagle to suppress errors. + vertices.push_back(Vector3()); + normals.push_back(Vector3()); + uvs.push_back(Vector2()); + tangents.push_back(1.0); + tangents.push_back(0.0); + tangents.push_back(0.0); + tangents.push_back(1.0); + indices.push_back(0); + indices.push_back(0); + indices.push_back(0); + } + + p_arr[RS::ARRAY_VERTEX] = vertices; + p_arr[RS::ARRAY_NORMAL] = normals; + p_arr[RS::ARRAY_TANGENT] = tangents; + p_arr[RS::ARRAY_TEX_UV] = uvs; + p_arr[RS::ARRAY_INDEX] = indices; +} + +void TextMesh::_bind_methods() { + ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &TextMesh::set_horizontal_alignment); + ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &TextMesh::get_horizontal_alignment); + + ClassDB::bind_method(D_METHOD("set_text", "text"), &TextMesh::set_text); + ClassDB::bind_method(D_METHOD("get_text"), &TextMesh::get_text); + + ClassDB::bind_method(D_METHOD("set_font", "font"), &TextMesh::set_font); + ClassDB::bind_method(D_METHOD("get_font"), &TextMesh::get_font); + + ClassDB::bind_method(D_METHOD("set_font_size", "font_size"), &TextMesh::set_font_size); + ClassDB::bind_method(D_METHOD("get_font_size"), &TextMesh::get_font_size); + + ClassDB::bind_method(D_METHOD("set_depth", "depth"), &TextMesh::set_depth); + ClassDB::bind_method(D_METHOD("get_depth"), &TextMesh::get_depth); + + ClassDB::bind_method(D_METHOD("set_width", "width"), &TextMesh::set_width); + ClassDB::bind_method(D_METHOD("get_width"), &TextMesh::get_width); + + ClassDB::bind_method(D_METHOD("set_pixel_size", "pixel_size"), &TextMesh::set_pixel_size); + ClassDB::bind_method(D_METHOD("get_pixel_size"), &TextMesh::get_pixel_size); + + ClassDB::bind_method(D_METHOD("set_curve_step", "curve_step"), &TextMesh::set_curve_step); + ClassDB::bind_method(D_METHOD("get_curve_step"), &TextMesh::get_curve_step); + + ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &TextMesh::set_text_direction); + ClassDB::bind_method(D_METHOD("get_text_direction"), &TextMesh::get_text_direction); + + ClassDB::bind_method(D_METHOD("set_opentype_feature", "tag", "value"), &TextMesh::set_opentype_feature); + ClassDB::bind_method(D_METHOD("get_opentype_feature", "tag"), &TextMesh::get_opentype_feature); + ClassDB::bind_method(D_METHOD("clear_opentype_features"), &TextMesh::clear_opentype_features); + + ClassDB::bind_method(D_METHOD("set_language", "language"), &TextMesh::set_language); + ClassDB::bind_method(D_METHOD("get_language"), &TextMesh::get_language); + + ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override", "parser"), &TextMesh::set_structured_text_bidi_override); + ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override"), &TextMesh::get_structured_text_bidi_override); + + ClassDB::bind_method(D_METHOD("set_structured_text_bidi_override_options", "args"), &TextMesh::set_structured_text_bidi_override_options); + ClassDB::bind_method(D_METHOD("get_structured_text_bidi_override_options"), &TextMesh::get_structured_text_bidi_override_options); + + ClassDB::bind_method(D_METHOD("set_uppercase", "enable"), &TextMesh::set_uppercase); + ClassDB::bind_method(D_METHOD("is_uppercase"), &TextMesh::is_uppercase); + + ClassDB::bind_method(D_METHOD("_font_changed"), &TextMesh::_font_changed); + ClassDB::bind_method(D_METHOD("_request_update"), &TextMesh::_request_update); + + ADD_GROUP("Text", ""); + ADD_PROPERTY(PropertyInfo(Variant::STRING, "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, "1,127,1"), "set_font_size", "get_font_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::BOOL, "uppercase"), "set_uppercase", "is_uppercase"); + 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"); + + ADD_GROUP("Mesh", ""); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pixel_size", PROPERTY_HINT_RANGE, "0.0001,128,0.0001"), "set_pixel_size", "get_pixel_size"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "curve_step", PROPERTY_HINT_RANGE, "0.1,10,0.1"), "set_curve_step", "get_curve_step"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth", PROPERTY_HINT_RANGE, "0.0,100.0,0.001,or_greater"), "set_depth", "get_depth"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "width"), "set_width", "get_width"); + + ADD_GROUP("Locale", ""); + 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"); +} + +void TextMesh::_notification(int p_what) { + switch (p_what) { + case MainLoop::NOTIFICATION_TRANSLATION_CHANGED: { + String new_text = tr(text); + if (new_text == xl_text) { + return; // Nothing new. + } + xl_text = new_text; + dirty_text = true; + _request_update(); + } break; + } +} + +bool TextMesh::_set(const StringName &p_name, const Variant &p_value) { + String str = p_name; + if (str.begins_with("opentype_features/")) { + String name = str.get_slicec('/', 1); + int32_t tag = TS->name_to_tag(name); + int value = p_value; + if (value == -1) { + if (opentype_features.has(tag)) { + opentype_features.erase(tag); + dirty_font = true; + _request_update(); + } + } else { + if (!opentype_features.has(tag) || (int)opentype_features[tag] != value) { + opentype_features[tag] = value; + dirty_font = true; + _request_update(); + } + } + notify_property_list_changed(); + return true; + } + + return false; +} + +bool TextMesh::_get(const StringName &p_name, Variant &r_ret) const { + String str = p_name; + if (str.begins_with("opentype_features/")) { + String name = str.get_slicec('/', 1); + int32_t tag = TS->name_to_tag(name); + if (opentype_features.has(tag)) { + r_ret = opentype_features[tag]; + return true; + } else { + r_ret = -1; + return true; + } + } + return false; +} + +void TextMesh::_get_property_list(List *p_list) const { + for (const Variant *ftr = opentype_features.next(nullptr); ftr != nullptr; ftr = opentype_features.next(ftr)) { + String name = TS->tag_to_name(*ftr); + p_list->push_back(PropertyInfo(Variant::INT, "opentype_features/" + name)); + } + p_list->push_back(PropertyInfo(Variant::NIL, "opentype_features/_new", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR)); +} + +TextMesh::TextMesh() { + primitive_type = PRIMITIVE_TRIANGLES; + text_rid = TS->create_shaped_text(); +} + +TextMesh::~TextMesh() { + TS->free_rid(text_rid); +} + +void TextMesh::set_horizontal_alignment(HorizontalAlignment p_alignment) { + ERR_FAIL_INDEX((int)p_alignment, 4); + if (horizontal_alignment != p_alignment) { + horizontal_alignment = p_alignment; + _request_update(); + } +} + +HorizontalAlignment TextMesh::get_horizontal_alignment() const { + return horizontal_alignment; +} + +void TextMesh::set_text(const String &p_string) { + if (text != p_string) { + text = p_string; + xl_text = tr(text); + dirty_text = true; + _request_update(); + } +} + +String TextMesh::get_text() const { + return text; +} + +void TextMesh::_font_changed() { + dirty_font = true; + dirty_cache = true; + call_deferred(SNAME("_request_update")); +} + +void TextMesh::set_font(const Ref &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; + dirty_cache = true; + if (font_override.is_valid()) { + font_override->connect(CoreStringNames::get_singleton()->changed, Callable(this, "_font_changed")); + } + _request_update(); + } +} + +Ref TextMesh::get_font() const { + return font_override; +} + +Ref TextMesh::_get_font_or_default() const { + if (font_override.is_valid() && font_override->get_data_count() > 0) { + return font_override; + } + + // Check the project-defined Theme resource. + if (Theme::get_project_default().is_valid()) { + List theme_types; + Theme::get_project_default()->get_type_dependencies(get_class_name(), StringName(), &theme_types); + + for (const StringName &E : theme_types) { + if (Theme::get_project_default()->has_theme_item(Theme::DATA_TYPE_FONT, "font", E)) { + return Theme::get_project_default()->get_theme_item(Theme::DATA_TYPE_FONT, "font", E); + } + } + } + + // Lastly, fall back on the items defined in the default Theme, if they exist. + { + List theme_types; + Theme::get_default()->get_type_dependencies(get_class_name(), StringName(), &theme_types); + + for (const StringName &E : theme_types) { + if (Theme::get_default()->has_theme_item(Theme::DATA_TYPE_FONT, "font", E)) { + return Theme::get_default()->get_theme_item(Theme::DATA_TYPE_FONT, "font", E); + } + } + } + + // If they don't exist, use any type to return the default/empty value. + return Theme::get_default()->get_theme_item(Theme::DATA_TYPE_FONT, "font", StringName()); +} + +void TextMesh::set_font_size(int p_size) { + if (font_size != p_size) { + font_size = CLAMP(p_size, 1, 127); + dirty_font = true; + dirty_cache = true; + _request_update(); + } +} + +int TextMesh::get_font_size() const { + return font_size; +} + +void TextMesh::set_depth(real_t p_depth) { + if (depth != p_depth) { + depth = MAX(p_depth, 0.0); + _request_update(); + } +} + +real_t TextMesh::get_depth() const { + return depth; +} + +void TextMesh::set_width(real_t p_width) { + if (width != p_width) { + width = p_width; + _request_update(); + } +} + +real_t TextMesh::get_width() const { + return width; +} + +void TextMesh::set_pixel_size(real_t p_amount) { + if (pixel_size != p_amount) { + pixel_size = CLAMP(p_amount, 0.0001, 128.0); + dirty_cache = true; + _request_update(); + } +} + +real_t TextMesh::get_pixel_size() const { + return pixel_size; +} + +void TextMesh::set_curve_step(real_t p_step) { + if (curve_step != p_step) { + curve_step = CLAMP(p_step, 0.1, 10.0); + dirty_cache = true; + _request_update(); + } +} + +real_t TextMesh::get_curve_step() const { + return curve_step; +} + +void TextMesh::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; + _request_update(); + } +} + +TextServer::Direction TextMesh::get_text_direction() const { + return text_direction; +} + +void TextMesh::clear_opentype_features() { + opentype_features.clear(); + dirty_font = true; + _request_update(); +} + +void TextMesh::set_opentype_feature(const String &p_name, int p_value) { + int32_t tag = TS->name_to_tag(p_name); + if (!opentype_features.has(tag) || (int)opentype_features[tag] != p_value) { + opentype_features[tag] = p_value; + dirty_font = true; + _request_update(); + } +} + +int TextMesh::get_opentype_feature(const String &p_name) const { + int32_t tag = TS->name_to_tag(p_name); + if (!opentype_features.has(tag)) { + return -1; + } + return opentype_features[tag]; +} + +void TextMesh::set_language(const String &p_language) { + if (language != p_language) { + language = p_language; + dirty_text = true; + _request_update(); + } +} + +String TextMesh::get_language() const { + return language; +} + +void TextMesh::set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser) { + if (st_parser != p_parser) { + st_parser = p_parser; + dirty_text = true; + _request_update(); + } +} + +TextServer::StructuredTextParser TextMesh::get_structured_text_bidi_override() const { + return st_parser; +} + +void TextMesh::set_structured_text_bidi_override_options(Array p_args) { + if (st_args != p_args) { + st_args = p_args; + dirty_text = true; + _request_update(); + } +} + +Array TextMesh::get_structured_text_bidi_override_options() const { + return st_args; +} + +void TextMesh::set_uppercase(bool p_uppercase) { + if (uppercase != p_uppercase) { + uppercase = p_uppercase; + dirty_text = true; + _request_update(); + } +} + +bool TextMesh::is_uppercase() const { + return uppercase; +} diff --git a/scene/resources/primitive_meshes.h b/scene/resources/primitive_meshes.h index 6b0d5993a1..3849c92a7b 100644 --- a/scene/resources/primitive_meshes.h +++ b/scene/resources/primitive_meshes.h @@ -31,7 +31,9 @@ #ifndef PRIMITIVE_MESHES_H #define PRIMITIVE_MESHES_H +#include "scene/resources/font.h" #include "scene/resources/mesh.h" +#include "servers/text_server.h" ///@TODO probably should change a few integers to unsigned integers... @@ -447,5 +449,129 @@ public: RibbonTrailMesh(); }; +/** + Text... +*/ + +class TextMesh : public PrimitiveMesh { + GDCLASS(TextMesh, PrimitiveMesh); + +private: + struct ContourPoint { + Vector2 point; + bool sharp = false; + + ContourPoint(){}; + ContourPoint(const Vector2 &p_pt, bool p_sharp) { + point = p_pt; + sharp = p_sharp; + }; + }; + struct ContourInfo { + real_t length = 0.0; + bool ccw = true; + ContourInfo(){}; + ContourInfo(real_t p_len, bool p_ccw) { + length = p_len; + ccw = p_ccw; + } + }; + struct GlyphMeshData { + Vector triangles; + Vector> contours; + Vector contours_info; + Vector2 min_p = Vector2(INFINITY, INFINITY); + Vector2 max_p = Vector2(-INFINITY, -INFINITY); + }; + mutable HashMap cache; + + RID text_rid; + String text; + String xl_text; + + int font_size = 16; + Ref font_override; + float width = 500.0; + + HorizontalAlignment horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER; + bool uppercase = false; + Dictionary opentype_features; + String language; + TextServer::Direction text_direction = TextServer::DIRECTION_AUTO; + TextServer::StructuredTextParser st_parser = TextServer::STRUCTURED_TEXT_DEFAULT; + Array st_args; + + real_t depth = 0.05; + real_t pixel_size = 0.01; + real_t curve_step = 0.5; + + mutable bool dirty_text = true; + mutable bool dirty_font = true; + mutable bool dirty_cache = true; + + void _generate_glyph_mesh_data(uint32_t p_hash, const Glyph &p_glyph) const; + void _font_changed(); + +protected: + static void _bind_methods(); + void _notification(int p_what); + + virtual void _create_mesh_array(Array &p_arr) const override; + + bool _set(const StringName &p_name, const Variant &p_value); + bool _get(const StringName &p_name, Variant &r_ret) const; + void _get_property_list(List *p_list) const; + +public: + GDVIRTUAL2RC(Array, _structured_text_parser, Array, String) + + TextMesh(); + ~TextMesh(); + + void set_horizontal_alignment(HorizontalAlignment p_alignment); + HorizontalAlignment get_horizontal_alignment() const; + + void set_text(const String &p_string); + String get_text() const; + + void set_font(const Ref &p_font); + Ref get_font() const; + Ref _get_font_or_default() const; + + void set_font_size(int p_size); + int get_font_size() const; + + void set_text_direction(TextServer::Direction p_text_direction); + TextServer::Direction get_text_direction() const; + + void set_opentype_feature(const String &p_name, int p_value); + int get_opentype_feature(const String &p_name) const; + void clear_opentype_features(); + + void set_language(const String &p_language); + String get_language() const; + + void set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser); + TextServer::StructuredTextParser get_structured_text_bidi_override() const; + + void set_structured_text_bidi_override_options(Array p_args); + Array get_structured_text_bidi_override_options() const; + + void set_uppercase(bool p_uppercase); + bool is_uppercase() const; + + void set_width(real_t p_width); + real_t get_width() const; + + void set_depth(real_t p_depth); + real_t get_depth() const; + + void set_curve_step(real_t p_step); + real_t get_curve_step() const; + + void set_pixel_size(real_t p_amount); + real_t get_pixel_size() const; +}; + VARIANT_ENUM_CAST(RibbonTrailMesh::Shape) #endif -- cgit v1.2.3