Magic_Game/Easy2D/2d/Text.h

// Copyright (c) 2016-2018 Easy2D - Nomango
// 
// 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.

#pragma once
#include "Node.h"
#include "Font.hpp"
#include "TextStyle.hpp"
#include <dwrite.h>

namespace easy2d
{
	// <20>ı<EFBFBD>
	class E2D_API Text
		: public VisualNode
	{
	public:
		Text();

		explicit Text(
			String const& text		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
		);

		explicit Text(
			String const& text,		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
			const Font& font		/* <20><><EFBFBD><EFBFBD> */
		);

		explicit Text(
			String const& text,		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
			const TextStyle& style	/* <20>ı<EFBFBD><C4B1><EFBFBD>ʽ */
		);

		explicit Text(
			String const& text,		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
			const Font& font,		/* <20><><EFBFBD><EFBFBD> */
			const TextStyle& style	/* <20>ı<EFBFBD><C4B1><EFBFBD>ʽ */
		);

		virtual ~Text();

		// <20><>ȡ<EFBFBD>ı<EFBFBD>
		String const& GetText() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
		const Font& GetFont() const;

		// <20><>ȡ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ʽ
		const TextStyle& GetStyle() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		String const& GetFontFamily() const;

		// <20><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD>ֺ<EFBFBD>
		float GetFontSize() const;

		// <20><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸֵ
		unsigned int GetFontWeight() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		const Color& GetColor() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		const Color& GetOutlineColor() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD>
		float GetOutlineWidth() const;

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ཻ<EFBFBD><E0BDBB>ʽ
		StrokeStyle GetOutlineStroke() const;

		// <20><>ȡ<EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>
		int GetLineCount();

		// <20><>ȡ<EFBFBD><C8A1><EFBFBD>ֲ<EFBFBD><D6B2>ִ<EFBFBD>С
		Size const& GetLayoutSize() const;

		// <20>Ƿ<EFBFBD><C7B7><EFBFBD>б<EFBFBD><D0B1>
		bool IsItalic() const;

		// <20>Ƿ<EFBFBD><C7B7><EFBFBD>ʾɾ<CABE><C9BE><EFBFBD><EFBFBD>
		bool HasStrikethrough() const;

		// <20>Ƿ<EFBFBD><C7B7><EFBFBD>ʾ<EFBFBD>»<EFBFBD><C2BB><EFBFBD>
		bool HasUnderline() const;

		// <20>Ƿ<EFBFBD><C7B7><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>
		bool HasOutline() const;

		// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
		void SetText(
			String const& text
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ʽ
		void SetStyle(
			const TextStyle& style
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		void SetFont(
			const Font& font
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		void SetFontFamily(
			String const& family
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>ֺţ<D6BA>Ĭ<EFBFBD><C4AC>ֵΪ 18<31><38>
		void SetFontSize(
			float size
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸֵ<CFB8><D6B5>Ĭ<EFBFBD><C4AC>ֵΪ FontWeight::Normal<61><6C>
		void SetFontWeight(
			unsigned int weight
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB>Ĭ<EFBFBD><C4AC>ֵΪ Color::White<74><65>
		void SetColor(
			Color const& color
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>壨Ĭ<E5A3A8><C4AC>ֵΪ false<73><65>
		void SetItalic(
			bool val
		);

		// <20>򿪻<EFBFBD><F2BFAABB>ر<EFBFBD><D8B1>ı<EFBFBD><C4B1>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>У<EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ<EFBFBD>رգ<D8B1>
		void SetWrapEnabled(
			bool wrap
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>еĿ<D0B5><C4BF>ȣ<EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ 0<><30>
		void SetWrapWidth(
			float wrap_width
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>ࣨĬ<E0A3A8><C4AC>Ϊ 0<><30>
		void SetLineacingPtr(
			float line_spacing
		);

		// <20><><EFBFBD>ö<EFBFBD><C3B6>뷽ʽ<EBB7BD><CABD>Ĭ<EFBFBD><C4AC>Ϊ TextAlign::Left<66><74>
		void SetAlignment(
			TextAlign align
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>»<EFBFBD><C2BB>ߣ<EFBFBD>Ĭ<EFBFBD><C4AC>ֵΪ false<73><65>
		void SetUnderline(
			bool underline
		);

		// <20><><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD>ߣ<EFBFBD>Ĭ<EFBFBD><C4AC>ֵΪ false<73><65>
		void SetStrikethrough(
			bool strikethrough
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>
		void SetOutline(
			bool outline
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		void SetOutlineColor(
			Color const& outline_color
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD>
		void SetOutlineWidth(
			float outline_width
		);

		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ཻ<EFBFBD><E0BDBB>ʽ
		void SetOutlineStroke(
			StrokeStyle outline_stroke
		);

		// <20><><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		static void SetDefaultFont(
			Font const& font
		);

		// <20><><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
		static void SetDefaultStyle(
			TextStyle const& style
		);

		void OnRender() override;

	protected:
		void UpdateLayout() const;

	protected:
		String		text_;
		Font		font_;
		TextStyle	style_;

		mutable bool layout_dirty_;
		mutable Size layout_size_;
		mutable ComPtr<IDWriteTextFormat>	text_format_;
		mutable ComPtr<IDWriteTextLayout>	text_layout_;
	};
}