From 3f33e1d7d6d07620487758c7a850ec40ce3aafdf Mon Sep 17 00:00:00 2001
From: bruvzg <7645683+bruvzg@users.noreply.github.com>
Date: Tue, 26 Oct 2021 09:40:11 +0300
Subject: Add functions for getting name and font style from dynamic and bitmap
 fonts. Add font selection toolbar editor plugin.

---
 modules/text_server_fb/text_server_fb.cpp | 77 +++++++++++++++++++++++++++++++
 modules/text_server_fb/text_server_fb.h   | 13 ++++++
 2 files changed, 90 insertions(+)

(limited to 'modules/text_server_fb')

diff --git a/modules/text_server_fb/text_server_fb.cpp b/modules/text_server_fb/text_server_fb.cpp
index f598eb80ea..00e7f6c8cc 100644
--- a/modules/text_server_fb/text_server_fb.cpp
+++ b/modules/text_server_fb/text_server_fb.cpp
@@ -736,6 +736,23 @@ _FORCE_INLINE_ bool TextServerFallback::_ensure_cache_for_size(FontDataFallback
 		fd->underline_thickness = (FT_MulFix(fd->face->underline_thickness, fd->face->size->metrics.y_scale) / 64.0) / fd->oversampling * fd->scale;
 
 		if (!p_font_data->face_init) {
+			// Get style flags and name.
+			if (fd->face->family_name != nullptr) {
+				p_font_data->font_name = String::utf8((const char *)fd->face->family_name);
+			}
+			if (fd->face->style_name != nullptr) {
+				p_font_data->style_name = String::utf8((const char *)fd->face->style_name);
+			}
+			p_font_data->style_flags = 0;
+			if (fd->face->style_flags & FT_STYLE_FLAG_BOLD) {
+				p_font_data->style_flags |= FONT_BOLD;
+			}
+			if (fd->face->style_flags & FT_STYLE_FLAG_ITALIC) {
+				p_font_data->style_flags |= FONT_ITALIC;
+			}
+			if (fd->face->face_flags & FT_FACE_FLAG_FIXED_WIDTH) {
+				p_font_data->style_flags |= FONT_FIXED_WIDTH;
+			}
 			// Read OpenType variations.
 			p_font_data->supported_varaitions.clear();
 			if (fd->face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS) {
@@ -826,6 +843,66 @@ void TextServerFallback::font_set_data_ptr(RID p_font_rid, const uint8_t *p_data
 	fd->data_size = p_data_size;
 }
 
+void TextServerFallback::font_set_style(RID p_font_rid, uint32_t /*FontStyle*/ p_style) {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND(!fd);
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
+	fd->style_flags = p_style;
+}
+
+uint32_t /*FontStyle*/ TextServerFallback::font_get_style(RID p_font_rid) const {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND_V(!fd, 0);
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), 0);
+	return fd->style_flags;
+}
+
+void TextServerFallback::font_set_style_name(RID p_font_rid, const String &p_name) {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND(!fd);
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
+	fd->style_name = p_name;
+}
+
+String TextServerFallback::font_get_style_name(RID p_font_rid) const {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND_V(!fd, String());
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), String());
+	return fd->style_name;
+}
+
+void TextServerFallback::font_set_name(RID p_font_rid, const String &p_name) {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND(!fd);
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND(!_ensure_cache_for_size(fd, size));
+	fd->font_name = p_name;
+}
+
+String TextServerFallback::font_get_name(RID p_font_rid) const {
+	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
+	ERR_FAIL_COND_V(!fd, String());
+
+	MutexLock lock(fd->mutex);
+	Vector2i size = _get_size(fd, 16);
+	ERR_FAIL_COND_V(!_ensure_cache_for_size(fd, size), String());
+	return fd->font_name;
+}
+
 void TextServerFallback::font_set_antialiased(RID p_font_rid, bool p_antialiased) {
 	FontDataFallback *fd = font_owner.get_or_null(p_font_rid);
 	ERR_FAIL_COND(!fd);
diff --git a/modules/text_server_fb/text_server_fb.h b/modules/text_server_fb/text_server_fb.h
index fb7de8f443..f2216d0185 100644
--- a/modules/text_server_fb/text_server_fb.h
+++ b/modules/text_server_fb/text_server_fb.h
@@ -142,6 +142,10 @@ class TextServerFallback : public TextServer {
 		Dictionary variation_coordinates;
 		float oversampling = 0.f;
 
+		uint32_t style_flags = 0;
+		String font_name;
+		String style_name;
+
 		Map<Vector2i, FontDataForSizeFallback *> cache;
 
 		bool face_init = false;
@@ -234,6 +238,15 @@ public:
 	virtual void font_set_data(RID p_font_rid, const PackedByteArray &p_data) override;
 	virtual void font_set_data_ptr(RID p_font_rid, const uint8_t *p_data_ptr, size_t p_data_size) override;
 
+	virtual void font_set_style(RID p_font_rid, uint32_t /*FontStyle*/ p_style) override;
+	virtual uint32_t /*FontStyle*/ font_get_style(RID p_font_rid) const override;
+
+	virtual void font_set_style_name(RID p_font_rid, const String &p_name) override;
+	virtual String font_get_style_name(RID p_font_rid) const override;
+
+	virtual void font_set_name(RID p_font_rid, const String &p_name) override;
+	virtual String font_get_name(RID p_font_rid) const override;
+
 	virtual void font_set_antialiased(RID p_font_rid, bool p_antialiased) override;
 	virtual bool font_is_antialiased(RID p_font_rid) const override;
 
-- 
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