diff options
Diffstat (limited to 'scene/resources/text_line.cpp')
| -rw-r--r-- | scene/resources/text_line.cpp | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/scene/resources/text_line.cpp b/scene/resources/text_line.cpp new file mode 100644 index 0000000000..5a419bb232 --- /dev/null +++ b/scene/resources/text_line.cpp @@ -0,0 +1,359 @@ +/*************************************************************************/ +/* text_line.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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 "text_line.h" + +void TextLine::_bind_methods() { + ClassDB::bind_method(D_METHOD("clear"), &TextLine::clear); + + ClassDB::bind_method(D_METHOD("set_direction", "direction"), &TextLine::set_direction); + ClassDB::bind_method(D_METHOD("get_direction"), &TextLine::get_direction); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "direction", PROPERTY_HINT_ENUM, "Auto,Light-to-right,Right-to-left"), "set_direction", "get_direction"); + + ClassDB::bind_method(D_METHOD("set_orientation", "orientation"), &TextLine::set_orientation); + ClassDB::bind_method(D_METHOD("get_orientation"), &TextLine::get_orientation); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "orientation", PROPERTY_HINT_ENUM, "Horizontal,Orientation"), "set_orientation", "get_orientation"); + + ClassDB::bind_method(D_METHOD("set_preserve_invalid", "enabled"), &TextLine::set_preserve_invalid); + ClassDB::bind_method(D_METHOD("get_preserve_invalid"), &TextLine::get_preserve_invalid); + + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "preserve_invalid"), "set_preserve_invalid", "get_preserve_invalid"); + + ClassDB::bind_method(D_METHOD("set_preserve_control", "enabled"), &TextLine::set_preserve_control); + ClassDB::bind_method(D_METHOD("get_preserve_control"), &TextLine::get_preserve_control); + + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "preserve_control"), "set_preserve_control", "get_preserve_control"); + + ClassDB::bind_method(D_METHOD("set_bidi_override", "override"), &TextLine::_set_bidi_override); + + ClassDB::bind_method(D_METHOD("add_string", "text", "fonts", "size", "opentype_features", "language"), &TextLine::add_string, DEFVAL(Dictionary()), DEFVAL("")); + ClassDB::bind_method(D_METHOD("add_object", "key", "size", "inline_align", "length"), &TextLine::add_object, DEFVAL(VALIGN_CENTER), DEFVAL(1)); + ClassDB::bind_method(D_METHOD("resize_object", "key", "size", "inline_align"), &TextLine::resize_object, DEFVAL(VALIGN_CENTER)); + + ClassDB::bind_method(D_METHOD("set_width", "width"), &TextLine::set_width); + ClassDB::bind_method(D_METHOD("get_width"), &TextLine::get_width); + + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "width"), "set_width", "get_width"); + + ClassDB::bind_method(D_METHOD("set_align", "align"), &TextLine::set_align); + ClassDB::bind_method(D_METHOD("get_align"), &TextLine::get_align); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "align", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_align", "get_align"); + + ClassDB::bind_method(D_METHOD("tab_align", "tab_stops"), &TextLine::tab_align); + + ClassDB::bind_method(D_METHOD("set_flags", "flags"), &TextLine::set_flags); + ClassDB::bind_method(D_METHOD("get_flags"), &TextLine::get_flags); + + ADD_PROPERTY(PropertyInfo(Variant::INT, "flags", PROPERTY_HINT_FLAGS, "Kashida justification,Word justification,Trim edge spaces after justification,Justification only after last tab"), "set_flags", "get_flags"); + + ClassDB::bind_method(D_METHOD("get_objects"), &TextLine::get_objects); + ClassDB::bind_method(D_METHOD("get_object_rect", "key"), &TextLine::get_object_rect); + + ClassDB::bind_method(D_METHOD("get_size"), &TextLine::get_size); + + ClassDB::bind_method(D_METHOD("get_rid"), &TextLine::get_rid); + + ClassDB::bind_method(D_METHOD("get_line_ascent"), &TextLine::get_line_ascent); + ClassDB::bind_method(D_METHOD("get_line_descent"), &TextLine::get_line_descent); + ClassDB::bind_method(D_METHOD("get_line_width"), &TextLine::get_line_width); + ClassDB::bind_method(D_METHOD("get_line_underline_position"), &TextLine::get_line_underline_position); + ClassDB::bind_method(D_METHOD("get_line_underline_thickness"), &TextLine::get_line_underline_thickness); + + ClassDB::bind_method(D_METHOD("draw", "canvas", "pos", "color"), &TextLine::draw, DEFVAL(Color(1, 1, 1))); + ClassDB::bind_method(D_METHOD("draw_outline", "canvas", "pos", "outline_size", "color"), &TextLine::draw_outline, DEFVAL(1), DEFVAL(Color(1, 1, 1))); + + ClassDB::bind_method(D_METHOD("hit_test", "coords"), &TextLine::hit_test); +} + +void TextLine::_shape() { + if (dirty) { + if (!tab_stops.empty()) { + TS->shaped_text_tab_align(rid, tab_stops); + } + if (align == HALIGN_FILL) { + TS->shaped_text_fit_to_width(rid, width, flags); + } + dirty = false; + } +} + +RID TextLine::get_rid() const { + return rid; +} + +void TextLine::clear() { + TS->shaped_text_clear(rid); +} + +void TextLine::set_preserve_invalid(bool p_enabled) { + TS->shaped_text_set_preserve_invalid(rid, p_enabled); + dirty = true; +} + +bool TextLine::get_preserve_invalid() const { + return TS->shaped_text_get_preserve_invalid(rid); +} + +void TextLine::set_preserve_control(bool p_enabled) { + TS->shaped_text_set_preserve_control(rid, p_enabled); + dirty = true; +} + +bool TextLine::get_preserve_control() const { + return TS->shaped_text_get_preserve_control(rid); +} + +void TextLine::set_direction(TextServer::Direction p_direction) { + TS->shaped_text_set_direction(rid, p_direction); + dirty = true; +} + +TextServer::Direction TextLine::get_direction() const { + return TS->shaped_text_get_direction(rid); +} + +void TextLine::set_orientation(TextServer::Orientation p_orientation) { + TS->shaped_text_set_orientation(rid, p_orientation); + dirty = true; +} + +TextServer::Orientation TextLine::get_orientation() const { + return TS->shaped_text_get_orientation(rid); +} + +void TextLine::_set_bidi_override(const Array &p_override) { + Vector<Vector2i> overrides; + for (int i = 0; i < p_override.size(); i++) { + overrides.push_back(p_override[i]); + } + set_bidi_override(overrides); +} + +void TextLine::set_bidi_override(const Vector<Vector2i> &p_override) { + TS->shaped_text_set_bidi_override(rid, p_override); + dirty = true; +} + +bool TextLine::add_string(const String &p_text, const Ref<Font> &p_fonts, int p_size, const Dictionary &p_opentype_features, const String &p_language) { + bool res = TS->shaped_text_add_string(rid, p_text, p_fonts->get_rids(), p_size, p_opentype_features, p_language); + dirty = true; + return res; +} + +bool TextLine::add_object(Variant p_key, const Size2 &p_size, VAlign p_inline_align, int p_length) { + bool res = TS->shaped_text_add_object(rid, p_key, p_size, p_inline_align, p_length); + dirty = true; + return res; +} + +bool TextLine::resize_object(Variant p_key, const Size2 &p_size, VAlign p_inline_align) { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_resize_object(rid, p_key, p_size, p_inline_align); +} + +Array TextLine::get_objects() const { + return TS->shaped_text_get_objects(rid); +} + +Rect2 TextLine::get_object_rect(Variant p_key) const { + return TS->shaped_text_get_object_rect(rid, p_key); +} + +void TextLine::set_align(HAlign p_align) { + if (align != p_align) { + if (align == HALIGN_FILL || p_align == HALIGN_FILL) { + align = p_align; + dirty = true; + } else { + align = p_align; + } + } +} + +HAlign TextLine::get_align() const { + return align; +} + +void TextLine::tab_align(const Vector<float> &p_tab_stops) { + tab_stops = p_tab_stops; + dirty = true; +} + +void TextLine::set_flags(uint8_t p_flags) { + if (flags != p_flags) { + flags = p_flags; + dirty = true; + } +} + +uint8_t TextLine::get_flags() const { + return flags; +} + +void TextLine::set_width(float p_width) { + width = p_width; + if (align == HALIGN_FILL) { + dirty = true; + } +} + +float TextLine::get_width() const { + return width; +} + +Size2 TextLine::get_size() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_size(rid); +} + +float TextLine::get_line_ascent() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_ascent(rid); +} + +float TextLine::get_line_descent() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_descent(rid); +} + +float TextLine::get_line_width() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_width(rid); +} + +float TextLine::get_line_underline_position() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_underline_position(rid); +} + +float TextLine::get_line_underline_thickness() const { + const_cast<TextLine *>(this)->_shape(); + return TS->shaped_text_get_underline_thickness(rid); +} + +void TextLine::draw(RID p_canvas, const Vector2 &p_pos, const Color &p_color) const { + const_cast<TextLine *>(this)->_shape(); + + Vector2 ofs = p_pos; + + float length = TS->shaped_text_get_width(rid); + if (width > 0) { + switch (align) { + case HALIGN_FILL: + case HALIGN_LEFT: + break; + case HALIGN_CENTER: { + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.x += Math::floor((width - length) / 2.0); + } else { + ofs.y += Math::floor((width - length) / 2.0); + } + } break; + case HALIGN_RIGHT: { + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.x += width - length; + } else { + ofs.y += width - length; + } + } break; + } + } + + float clip_l; + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.y += TS->shaped_text_get_ascent(rid); + clip_l = MAX(0, p_pos.x - ofs.x); + } else { + ofs.x += TS->shaped_text_get_ascent(rid); + clip_l = MAX(0, p_pos.y - ofs.y); + } + return TS->shaped_text_draw(rid, p_canvas, ofs, clip_l, clip_l + width, p_color); +} + +void TextLine::draw_outline(RID p_canvas, const Vector2 &p_pos, int p_outline_size, const Color &p_color) const { + const_cast<TextLine *>(this)->_shape(); + + Vector2 ofs = p_pos; + + float length = TS->shaped_text_get_width(rid); + if (width > 0) { + switch (align) { + case HALIGN_FILL: + case HALIGN_LEFT: + break; + case HALIGN_CENTER: { + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.x += Math::floor((width - length) / 2.0); + } else { + ofs.y += Math::floor((width - length) / 2.0); + } + } break; + case HALIGN_RIGHT: { + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.x += width - length; + } else { + ofs.y += width - length; + } + } break; + } + } + + float clip_l; + if (TS->shaped_text_get_orientation(rid) == TextServer::ORIENTATION_HORIZONTAL) { + ofs.y += TS->shaped_text_get_ascent(rid); + clip_l = MAX(0, p_pos.x - ofs.x); + } else { + ofs.x += TS->shaped_text_get_ascent(rid); + clip_l = MAX(0, p_pos.y - ofs.y); + } + return TS->shaped_text_draw_outline(rid, p_canvas, ofs, clip_l, clip_l + width, p_outline_size, p_color); +} + +int TextLine::hit_test(float p_coords) const { + const_cast<TextLine *>(this)->_shape(); + + return TS->shaped_text_hit_test_position(rid, p_coords); +} + +TextLine::TextLine(const String &p_text, const Ref<Font> &p_fonts, int p_size, const Dictionary &p_opentype_features, const String &p_language, TextServer::Direction p_direction, TextServer::Orientation p_orientation) { + rid = TS->create_shaped_text(p_direction, p_orientation); + TS->shaped_text_add_string(rid, p_text, p_fonts->get_rids(), p_size, p_opentype_features, p_language); +} + +TextLine::TextLine() { + rid = TS->create_shaped_text(); +} + +TextLine::~TextLine() { + TS->free(rid); +} |