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https://github.com/godotengine/godot
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[Complex Text Layouts] Provide access to glyph contour points.
This commit is contained in:
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2a66714bfb
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0d3fa2a125
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@ -258,6 +258,22 @@
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Returns advance of the glyph.
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</description>
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</method>
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<method name="font_get_glyph_contours" qualifiers="const">
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<return type="Dictionary">
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</return>
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<argument index="0" name="font" type="RID">
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</argument>
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<argument index="1" name="size" type="int">
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</argument>
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<argument index="2" name="index" type="int">
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</argument>
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<description>
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Returns outline contours of the glyph in a Dictionary.
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[code]points[/code] - [PackedVector3Array], containing outline points. [code]x[/code] and [code]y[/code] are point coordinates. [code]z[/code] is the type of the point, using the [enum ContourPointTag] values.
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[code]contours[/code] - [PackedInt32Array], containing indices the end points of each contour.
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[code]orientation[/code] - [bool], contour orientation. If [code]true[/code], clockwise contours must be filled.
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</description>
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</method>
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<method name="font_get_glyph_index" qualifiers="const">
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<return type="int">
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</return>
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@ -1301,5 +1317,14 @@
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<constant name="FEATURE_USE_SUPPORT_DATA" value="128" enum="Feature">
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TextServer require external data file for some features.
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</constant>
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<constant name="CONTOUR_CURVE_TAG_ON" value="1" enum="ContourPointTag">
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Contour point is on the curve.
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</constant>
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<constant name="CONTOUR_CURVE_TAG_OFF_CONIC" value="0" enum="ContourPointTag">
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Contour point isn't on the curve, but serves as a control point for a conic (quadratic) Bézier arc.
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</constant>
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<constant name="CONTOUR_CURVE_TAG_OFF_CUBIC" value="2" enum="ContourPointTag">
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Contour point isn't on the curve, but serves as a control point for a cubic Bézier arc.
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</constant>
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</constants>
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</class>
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@ -118,6 +118,7 @@ typedef struct {
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godot_vector2 (*font_get_glyph_kerning)(void *, godot_rid *, uint32_t, uint32_t, int);
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godot_vector2 (*font_draw_glyph)(void *, godot_rid *, godot_rid *, int, const godot_vector2 *, uint32_t, const godot_color *);
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godot_vector2 (*font_draw_glyph_outline)(void *, godot_rid *, godot_rid *, int, int, const godot_vector2 *, uint32_t, const godot_color *);
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bool (*font_get_glyph_contours)(void *, godot_rid *, int, uint32_t, godot_packed_vector3_array *, godot_packed_int32_array *, bool *);
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float (*font_get_oversampling)(void *);
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void (*font_set_oversampling)(void *, float);
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godot_packed_string_array (*get_system_fonts)(void *);
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@ -359,6 +359,12 @@ Vector2 TextServerGDNative::font_draw_glyph_outline(RID p_font, RID p_canvas, in
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return advance;
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}
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bool TextServerGDNative::font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
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ERR_FAIL_COND_V(interface == nullptr, false);
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ERR_FAIL_COND_V(interface->font_get_glyph_contours == nullptr, false);
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return interface->font_get_glyph_contours(data, (godot_rid *)&p_font, p_size, p_index, (godot_packed_vector3_array *)&r_points, (godot_packed_int32_array *)&r_contours, (bool *)&r_orientation);
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}
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float TextServerGDNative::font_get_oversampling() const {
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ERR_FAIL_COND_V(interface == nullptr, 1.f);
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return interface->font_get_oversampling(data);
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@ -126,6 +126,8 @@ public:
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virtual Vector2 font_draw_glyph(RID p_font, RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual Vector2 font_draw_glyph_outline(RID p_font, RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual bool font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
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virtual float font_get_oversampling() const override;
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virtual void font_set_oversampling(float p_oversampling) override;
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@ -997,6 +997,29 @@ Vector2 DynamicFontDataAdvanced::draw_glyph_outline(RID p_canvas, int p_size, in
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return advance;
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}
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bool DynamicFontDataAdvanced::get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
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_THREAD_SAFE_METHOD_
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DataAtSize *fds = const_cast<DynamicFontDataAdvanced *>(this)->get_data_for_size(p_size);
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ERR_FAIL_COND_V(fds == nullptr, false);
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int error = FT_Load_Glyph(fds->face, p_index, FT_LOAD_NO_BITMAP | (force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0));
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ERR_FAIL_COND_V(error, false);
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r_points.clear();
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r_contours.clear();
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float h = fds->ascent;
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float scale = (1.0 / 64.0) / oversampling * fds->scale_color_font;
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for (short i = 0; i < fds->face->glyph->outline.n_points; i++) {
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r_points.push_back(Vector3(fds->face->glyph->outline.points[i].x * scale, h - fds->face->glyph->outline.points[i].y * scale, FT_CURVE_TAG(fds->face->glyph->outline.tags[i])));
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}
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for (short i = 0; i < fds->face->glyph->outline.n_contours; i++) {
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r_contours.push_back(fds->face->glyph->outline.contours[i]);
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}
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r_orientation = (FT_Outline_Get_Orientation(&fds->face->glyph->outline) == FT_ORIENTATION_FILL_RIGHT);
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return true;
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}
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DynamicFontDataAdvanced::~DynamicFontDataAdvanced() {
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clear_cache();
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if (library != nullptr) {
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@ -186,6 +186,8 @@ public:
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virtual Vector2 draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override;
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virtual Vector2 draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override;
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virtual bool get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
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virtual ~DynamicFontDataAdvanced() override;
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};
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@ -92,8 +92,8 @@ struct FontDataAdvanced {
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virtual bool has_outline() const = 0;
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virtual float get_base_size() const = 0;
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virtual bool is_lang_supported(const String &p_lang) const { return false; };
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virtual bool is_script_supported(uint32_t p_script) const { return false; };
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virtual bool is_lang_supported(const String &p_lang) const { return true; };
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virtual bool is_script_supported(uint32_t p_script) const { return true; };
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virtual bool has_char(char32_t p_char) const = 0;
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virtual String get_supported_chars() const = 0;
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@ -107,6 +107,8 @@ struct FontDataAdvanced {
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virtual Vector2 draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const = 0;
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virtual Vector2 draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const = 0;
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virtual bool get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const { return false; };
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virtual ~FontDataAdvanced(){};
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};
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@ -906,6 +906,13 @@ Vector2 TextServerAdvanced::font_draw_glyph_outline(RID p_font, RID p_canvas, in
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return fd->draw_glyph_outline(p_canvas, p_size, p_outline_size, p_pos, p_index, p_color);
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}
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bool TextServerAdvanced::font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
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_THREAD_SAFE_METHOD_
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const FontDataAdvanced *fd = font_owner.getornull(p_font);
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ERR_FAIL_COND_V(!fd, false);
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return fd->get_glyph_contours(p_size, p_index, r_points, r_contours, r_orientation);
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}
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float TextServerAdvanced::font_get_oversampling() const {
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return oversampling;
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}
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@ -188,6 +188,8 @@ public:
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virtual Vector2 font_draw_glyph(RID p_font, RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual Vector2 font_draw_glyph_outline(RID p_font, RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual bool font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
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virtual float font_get_oversampling() const override;
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virtual void font_set_oversampling(float p_oversampling) override;
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@ -680,6 +680,29 @@ Vector2 DynamicFontDataFallback::draw_glyph_outline(RID p_canvas, int p_size, in
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return advance;
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}
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bool DynamicFontDataFallback::get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
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_THREAD_SAFE_METHOD_
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DataAtSize *fds = const_cast<DynamicFontDataFallback *>(this)->get_data_for_size(p_size);
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ERR_FAIL_COND_V(fds == nullptr, false);
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int error = FT_Load_Glyph(fds->face, p_index, FT_LOAD_NO_BITMAP | (force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0));
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ERR_FAIL_COND_V(error, false);
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r_points.clear();
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r_contours.clear();
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float h = fds->ascent;
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float scale = (1.0 / 64.0) / oversampling * fds->scale_color_font;
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for (short i = 0; i < fds->face->glyph->outline.n_points; i++) {
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r_points.push_back(Vector3(fds->face->glyph->outline.points[i].x * scale, h - fds->face->glyph->outline.points[i].y * scale, FT_CURVE_TAG(fds->face->glyph->outline.tags[i])));
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}
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for (short i = 0; i < fds->face->glyph->outline.n_contours; i++) {
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r_contours.push_back(fds->face->glyph->outline.contours[i]);
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}
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r_orientation = (FT_Outline_Get_Orientation(&fds->face->glyph->outline) == FT_ORIENTATION_FILL_RIGHT);
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return true;
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}
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DynamicFontDataFallback::~DynamicFontDataFallback() {
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clear_cache();
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if (library != nullptr) {
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@ -164,6 +164,8 @@ public:
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virtual Vector2 draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override;
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virtual Vector2 draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const override;
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virtual bool get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
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virtual ~DynamicFontDataFallback() override;
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};
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@ -93,6 +93,8 @@ struct FontDataFallback {
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virtual Vector2 draw_glyph(RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const = 0;
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virtual Vector2 draw_glyph_outline(RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color) const = 0;
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virtual bool get_glyph_contours(int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const { return false; };
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virtual ~FontDataFallback(){};
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};
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@ -452,6 +452,13 @@ Vector2 TextServerFallback::font_draw_glyph_outline(RID p_font, RID p_canvas, in
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return fd->draw_glyph_outline(p_canvas, p_size, p_outline_size, p_pos, p_index, p_color);
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}
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bool TextServerFallback::font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const {
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_THREAD_SAFE_METHOD_
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const FontDataFallback *fd = font_owner.getornull(p_font);
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ERR_FAIL_COND_V(!fd, false);
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return fd->get_glyph_contours(p_size, p_index, r_points, r_contours, r_orientation);
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}
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float TextServerFallback::font_get_oversampling() const {
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return oversampling;
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}
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@ -137,6 +137,8 @@ public:
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virtual Vector2 font_draw_glyph(RID p_font, RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual Vector2 font_draw_glyph_outline(RID p_font, RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const override;
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virtual bool font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const override;
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virtual float font_get_oversampling() const override;
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virtual void font_set_oversampling(float p_oversampling) override;
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@ -291,6 +291,8 @@ void TextServer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_hex_code_box_size", "size", "index"), &TextServer::get_hex_code_box_size);
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ClassDB::bind_method(D_METHOD("draw_hex_code_box", "canvas", "size", "pos", "index", "color"), &TextServer::draw_hex_code_box);
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ClassDB::bind_method(D_METHOD("font_get_glyph_contours", "font", "size", "index"), &TextServer::_font_get_glyph_contours);
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/* Shaped text buffer interface */
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ClassDB::bind_method(D_METHOD("create_shaped_text", "direction", "orientation"), &TextServer::create_shaped_text, DEFVAL(DIRECTION_AUTO), DEFVAL(ORIENTATION_HORIZONTAL));
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BIND_ENUM_CONSTANT(FEATURE_FONT_SYSTEM);
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BIND_ENUM_CONSTANT(FEATURE_FONT_VARIABLE);
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BIND_ENUM_CONSTANT(FEATURE_USE_SUPPORT_DATA);
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/* FT Contour Point Types */
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BIND_ENUM_CONSTANT(CONTOUR_CURVE_TAG_ON);
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BIND_ENUM_CONSTANT(CONTOUR_CURVE_TAG_OFF_CONIC);
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BIND_ENUM_CONSTANT(CONTOUR_CURVE_TAG_OFF_CUBIC);
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}
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Vector3 TextServer::hex_code_box_font_size[2] = { Vector3(5, 5, 1), Vector3(10, 10, 2) };
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return create_font_memory(p_data.ptr(), p_data.size(), p_type, p_base_size);
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}
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Dictionary TextServer::_font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index) const {
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Vector<Vector3> points;
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Vector<int32_t> contours;
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bool orientation;
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bool ok = font_get_glyph_contours(p_font, p_size, p_index, points, contours, orientation);
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Dictionary out;
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if (ok) {
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out["points"] = points;
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out["contours"] = contours;
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out["orientation"] = orientation;
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}
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return out;
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}
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void TextServer::_shaped_text_set_bidi_override(RID p_shaped, const Array &p_override) {
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Vector<Vector2i> overrides;
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for (int i = 0; i < p_override.size(); i++) {
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@ -99,6 +99,12 @@ public:
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FEATURE_USE_SUPPORT_DATA = 1 << 7
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};
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enum ContourPointTag {
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CONTOUR_CURVE_TAG_ON = 0x01,
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CONTOUR_CURVE_TAG_OFF_CONIC = 0x00,
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CONTOUR_CURVE_TAG_OFF_CUBIC = 0x02
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};
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struct Glyph {
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int start = -1; // Start offset in the source string.
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int end = -1; // End offset in the source string.
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virtual Vector2 font_draw_glyph(RID p_font, RID p_canvas, int p_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const = 0;
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virtual Vector2 font_draw_glyph_outline(RID p_font, RID p_canvas, int p_size, int p_outline_size, const Vector2 &p_pos, uint32_t p_index, const Color &p_color = Color(1, 1, 1)) const = 0;
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virtual bool font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index, Vector<Vector3> &r_points, Vector<int32_t> &r_contours, bool &r_orientation) const = 0;
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virtual float font_get_oversampling() const = 0;
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virtual void font_set_oversampling(float p_oversampling) = 0;
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/* GDScript wrappers */
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RID _create_font_memory(const PackedByteArray &p_data, const String &p_type, int p_base_size = 16);
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Dictionary _font_get_glyph_contours(RID p_font, int p_size, uint32_t p_index) const;
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Array _shaped_text_get_glyphs(RID p_shaped) const;
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Dictionary _shaped_text_get_carets(RID p_shaped, int p_position) const;
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@ -454,5 +464,6 @@ VARIANT_ENUM_CAST(TextServer::LineBreakFlag);
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VARIANT_ENUM_CAST(TextServer::GraphemeFlag);
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VARIANT_ENUM_CAST(TextServer::Hinting);
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VARIANT_ENUM_CAST(TextServer::Feature);
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VARIANT_ENUM_CAST(TextServer::ContourPointTag);
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#endif // TEXT_SERVER_H
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