Makes FontData importable resource.

Adds multi-channel SDF font texture generation and rendering support.
Adds per-font oversampling support.
Adds FontData import plugins (for dynamic fonts, BMFonts and monospaced image fonts), font texture cache pre-generation and loading.
Adds BMFont binary format and outline support.

1 files changed, 167 insertions, 0 deletions

diff --git a/editor/import/dynamicfont_import_settings.h b/editor/import/dynamicfont_import_settings.h
new file mode 100644
index 0000000000..05f5e8e00b
--- /dev/null
+++ b/editor/import/dynamicfont_import_settings.h
@@ -0,0 +1,167 @@
+/*************************************************************************/
+/*  dynamicfont_import_settings.h                                        */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 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.                */
+/*************************************************************************/
+
+#ifndef FONTDATA_IMPORT_SETTINGS_H
+#define FONTDATA_IMPORT_SETTINGS_H
+
+#include "editor/editor_file_dialog.h"
+#include "editor/editor_inspector.h"
+
+#include "editor/import/resource_importer_dynamicfont.h"
+
+#include "scene/gui/dialogs.h"
+#include "scene/gui/item_list.h"
+#include "scene/gui/option_button.h"
+#include "scene/gui/split_container.h"
+#include "scene/gui/subviewport_container.h"
+#include "scene/gui/tab_container.h"
+#include "scene/gui/text_edit.h"
+#include "scene/gui/tree.h"
+
+#include "scene/resources/font.h"
+#include "servers/text_server.h"
+
+class DynamicFontImportSettingsData;
+
+class DynamicFontImportSettings : public ConfirmationDialog {
+	GDCLASS(DynamicFontImportSettings, ConfirmationDialog)
+	friend class DynamicFontImportSettingsData;
+
+	enum ItemButton {
+		BUTTON_ADD_VAR,
+		BUTTON_REMOVE_VAR,
+	};
+
+	static DynamicFontImportSettings *singleton;
+
+	String base_path;
+
+	Ref<DynamicFontImportSettingsData> import_settings_data;
+	List<ResourceImporter::ImportOption> options_variations;
+	List<ResourceImporter::ImportOption> options_general;
+
+	// Root layout
+	Label *label_warn = nullptr;
+	TabContainer *main_pages = nullptr;
+
+	// Page 1 layout: Rendering Options
+	Label *page1_description = nullptr;
+	Label *font_preview_label = nullptr;
+	EditorInspector *inspector_general = nullptr;
+
+	void _main_prop_changed(const String &p_edited_property);
+
+	// Page 2 layout: Configurations
+	Label *page2_description = nullptr;
+	Label *label_vars = nullptr;
+	Button *add_var = nullptr;
+	Tree *vars_list = nullptr;
+	TreeItem *vars_list_root = nullptr;
+	EditorInspector *inspector_vars = nullptr;
+
+	void _variation_add();
+	void _variation_selected();
+	void _variation_remove(Object *p_item, int p_column, int p_id);
+	void _variation_changed(const String &p_edited_property);
+	void _variations_validate();
+
+	// Page 3 layout: Text to select glyphs
+	Label *page3_description = nullptr;
+	Label *label_glyphs = nullptr;
+	TextEdit *text_edit = nullptr;
+	LineEdit *ftr_edit = nullptr;
+	LineEdit *lang_edit = nullptr;
+
+	void _change_text_opts();
+	void _glyph_text_selected();
+	void _glyph_clear();
+
+	// Page 4 layout: Character map
+	Label *page4_description = nullptr;
+	Tree *glyph_table = nullptr;
+	Tree *glyph_tree = nullptr;
+	TreeItem *glyph_root = nullptr;
+
+	void _glyph_selected();
+	void _range_edited();
+	void _range_selected();
+	void _edit_range(int32_t p_start, int32_t p_end);
+	bool _char_update(int32_t p_char);
+	void _range_update(int32_t p_start, int32_t p_end);
+
+	// Page 5 layout: Metadata override
+	Label *page5_description = nullptr;
+	Button *add_lang = nullptr;
+	Button *add_script = nullptr;
+
+	PopupMenu *menu_langs = nullptr;
+	PopupMenu *menu_scripts = nullptr;
+
+	Tree *lang_list = nullptr;
+	TreeItem *lang_list_root = nullptr;
+
+	Tree *script_list = nullptr;
+	TreeItem *script_list_root = nullptr;
+	Label *label_langs = nullptr;
+	Label *label_script = nullptr;
+
+	void _lang_add();
+	void _lang_add_item(int p_option);
+	void _lang_remove(Object *p_item, int p_column, int p_id);
+
+	void _script_add();
+	void _script_add_item(int p_option);
+	void _script_remove(Object *p_item, int p_column, int p_id);
+
+	// Common
+
+	void _add_glyph_range_item(int32_t p_start, int32_t p_end, const String &p_name);
+
+	Ref<Font> font_preview;
+	Ref<Font> font_main;
+
+	Set<char32_t> selected_chars;
+	Set<int32_t> selected_glyphs;
+
+	void _re_import();
+
+	String _pad_zeros(const String &p_hex) const;
+
+protected:
+	void _notification(int p_what);
+
+public:
+	void open_settings(const String &p_path);
+	static DynamicFontImportSettings *get_singleton();
+
+	DynamicFontImportSettings();
+};
+
+#endif // FONTDATA_IMPORT_SETTINGS_H