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							| @@ -0,0 +1,513 @@ | ||||
| //////////////////////////////////////////////////////////// | ||||
| // | ||||
| // SFML - Simple and Fast Multimedia Library | ||||
| // Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org) | ||||
| // | ||||
| // This software is provided 'as-is', without any express or implied warranty. | ||||
| // In no event will the authors be held liable for any damages arising from the use of this software. | ||||
| // | ||||
| // Permission is granted to anyone to use this software for any purpose, | ||||
| // including commercial applications, and to alter it and redistribute it freely, | ||||
| // subject to the following restrictions: | ||||
| // | ||||
| // 1. The origin of this software must not be misrepresented; | ||||
| //    you must not claim that you wrote the original software. | ||||
| //    If you use this software in a product, an acknowledgment | ||||
| //    in the product documentation would be appreciated but is not required. | ||||
| // | ||||
| // 2. Altered source versions must be plainly marked as such, | ||||
| //    and must not be misrepresented as being the original software. | ||||
| // | ||||
| // 3. This notice may not be removed or altered from any source distribution. | ||||
| // | ||||
| //////////////////////////////////////////////////////////// | ||||
|  | ||||
| #ifndef SFML_TEXT_HPP | ||||
| #define SFML_TEXT_HPP | ||||
|  | ||||
| //////////////////////////////////////////////////////////// | ||||
| // Headers | ||||
| //////////////////////////////////////////////////////////// | ||||
| #include <SFML/Graphics/Export.hpp> | ||||
| #include <SFML/Graphics/Drawable.hpp> | ||||
| #include <SFML/Graphics/Transformable.hpp> | ||||
| #include <SFML/Graphics/Font.hpp> | ||||
| #include <SFML/Graphics/Rect.hpp> | ||||
| #include <SFML/Graphics/VertexArray.hpp> | ||||
| #include <SFML/System/String.hpp> | ||||
| #include <string> | ||||
| #include <vector> | ||||
|  | ||||
|  | ||||
| namespace sf | ||||
| { | ||||
| //////////////////////////////////////////////////////////// | ||||
| /// \brief Graphical text that can be drawn to a render target | ||||
| /// | ||||
| //////////////////////////////////////////////////////////// | ||||
| class SFML_GRAPHICS_API Text : public Drawable, public Transformable | ||||
| { | ||||
| public: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Enumeration of the string drawing styles | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     enum Style | ||||
|     { | ||||
|         Regular       = 0,      ///< Regular characters, no style | ||||
|         Bold          = 1 << 0, ///< Bold characters | ||||
|         Italic        = 1 << 1, ///< Italic characters | ||||
|         Underlined    = 1 << 2, ///< Underlined characters | ||||
|         StrikeThrough = 1 << 3  ///< Strike through characters | ||||
|     }; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Default constructor | ||||
|     /// | ||||
|     /// Creates an empty text. | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     Text(); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Construct the text from a string, font and size | ||||
|     /// | ||||
|     /// Note that if the used font is a bitmap font, it is not | ||||
|     /// scalable, thus not all requested sizes will be available | ||||
|     /// to use. This needs to be taken into consideration when | ||||
|     /// setting the character size. If you need to display text | ||||
|     /// of a certain size, make sure the corresponding bitmap | ||||
|     /// font that supports that size is used. | ||||
|     /// | ||||
|     /// \param string         Text assigned to the string | ||||
|     /// \param font           Font used to draw the string | ||||
|     /// \param characterSize  Base size of characters, in pixels | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     Text(const String& string, const Font& font, unsigned int characterSize = 30); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the text's string | ||||
|     /// | ||||
|     /// The \a string argument is a sf::String, which can | ||||
|     /// automatically be constructed from standard string types. | ||||
|     /// So, the following calls are all valid: | ||||
|     /// \code | ||||
|     /// text.setString("hello"); | ||||
|     /// text.setString(L"hello"); | ||||
|     /// text.setString(std::string("hello")); | ||||
|     /// text.setString(std::wstring(L"hello")); | ||||
|     /// \endcode | ||||
|     /// A text's string is empty by default. | ||||
|     /// | ||||
|     /// \param string New string | ||||
|     /// | ||||
|     /// \see getString | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setString(const String& string); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the text's font | ||||
|     /// | ||||
|     /// The \a font argument refers to a font that must | ||||
|     /// exist as long as the text uses it. Indeed, the text | ||||
|     /// doesn't store its own copy of the font, but rather keeps | ||||
|     /// a pointer to the one that you passed to this function. | ||||
|     /// If the font is destroyed and the text tries to | ||||
|     /// use it, the behavior is undefined. | ||||
|     /// | ||||
|     /// \param font New font | ||||
|     /// | ||||
|     /// \see getFont | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setFont(const Font& font); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the character size | ||||
|     /// | ||||
|     /// The default size is 30. | ||||
|     /// | ||||
|     /// Note that if the used font is a bitmap font, it is not | ||||
|     /// scalable, thus not all requested sizes will be available | ||||
|     /// to use. This needs to be taken into consideration when | ||||
|     /// setting the character size. If you need to display text | ||||
|     /// of a certain size, make sure the corresponding bitmap | ||||
|     /// font that supports that size is used. | ||||
|     /// | ||||
|     /// \param size New character size, in pixels | ||||
|     /// | ||||
|     /// \see getCharacterSize | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setCharacterSize(unsigned int size); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the line spacing factor | ||||
|     /// | ||||
|     /// The default spacing between lines is defined by the font. | ||||
|     /// This method enables you to set a factor for the spacing | ||||
|     /// between lines. By default the line spacing factor is 1. | ||||
|     /// | ||||
|     /// \param spacingFactor New line spacing factor | ||||
|     /// | ||||
|     /// \see getLineSpacing | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setLineSpacing(float spacingFactor); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the letter spacing factor | ||||
|     /// | ||||
|     /// The default spacing between letters is defined by the font. | ||||
|     /// This factor doesn't directly apply to the existing | ||||
|     /// spacing between each character, it rather adds a fixed | ||||
|     /// space between them which is calculated from the font | ||||
|     /// metrics and the character size. | ||||
|     /// Note that factors below 1 (including negative numbers) bring | ||||
|     /// characters closer to each other. | ||||
|     /// By default the letter spacing factor is 1. | ||||
|     /// | ||||
|     /// \param spacingFactor New letter spacing factor | ||||
|     /// | ||||
|     /// \see getLetterSpacing | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setLetterSpacing(float spacingFactor); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the text's style | ||||
|     /// | ||||
|     /// You can pass a combination of one or more styles, for | ||||
|     /// example sf::Text::Bold | sf::Text::Italic. | ||||
|     /// The default style is sf::Text::Regular. | ||||
|     /// | ||||
|     /// \param style New style | ||||
|     /// | ||||
|     /// \see getStyle | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setStyle(Uint32 style); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the fill color of the text | ||||
|     /// | ||||
|     /// By default, the text's fill color is opaque white. | ||||
|     /// Setting the fill color to a transparent color with an outline | ||||
|     /// will cause the outline to be displayed in the fill area of the text. | ||||
|     /// | ||||
|     /// \param color New fill color of the text | ||||
|     /// | ||||
|     /// \see getFillColor | ||||
|     /// | ||||
|     /// \deprecated There is now fill and outline colors instead | ||||
|     /// of a single global color. | ||||
|     /// Use setFillColor() or setOutlineColor() instead. | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     SFML_DEPRECATED void setColor(const Color& color); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the fill color of the text | ||||
|     /// | ||||
|     /// By default, the text's fill color is opaque white. | ||||
|     /// Setting the fill color to a transparent color with an outline | ||||
|     /// will cause the outline to be displayed in the fill area of the text. | ||||
|     /// | ||||
|     /// \param color New fill color of the text | ||||
|     /// | ||||
|     /// \see getFillColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setFillColor(const Color& color); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the outline color of the text | ||||
|     /// | ||||
|     /// By default, the text's outline color is opaque black. | ||||
|     /// | ||||
|     /// \param color New outline color of the text | ||||
|     /// | ||||
|     /// \see getOutlineColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setOutlineColor(const Color& color); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Set the thickness of the text's outline | ||||
|     /// | ||||
|     /// By default, the outline thickness is 0. | ||||
|     /// | ||||
|     /// Be aware that using a negative value for the outline | ||||
|     /// thickness will cause distorted rendering. | ||||
|     /// | ||||
|     /// \param thickness New outline thickness, in pixels | ||||
|     /// | ||||
|     /// \see getOutlineThickness | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void setOutlineThickness(float thickness); | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the text's string | ||||
|     /// | ||||
|     /// The returned string is a sf::String, which can automatically | ||||
|     /// be converted to standard string types. So, the following | ||||
|     /// lines of code are all valid: | ||||
|     /// \code | ||||
|     /// sf::String   s1 = text.getString(); | ||||
|     /// std::string  s2 = text.getString(); | ||||
|     /// std::wstring s3 = text.getString(); | ||||
|     /// \endcode | ||||
|     /// | ||||
|     /// \return Text's string | ||||
|     /// | ||||
|     /// \see setString | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const String& getString() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the text's font | ||||
|     /// | ||||
|     /// If the text has no font attached, a NULL pointer is returned. | ||||
|     /// The returned pointer is const, which means that you | ||||
|     /// cannot modify the font when you get it from this function. | ||||
|     /// | ||||
|     /// \return Pointer to the text's font | ||||
|     /// | ||||
|     /// \see setFont | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Font* getFont() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the character size | ||||
|     /// | ||||
|     /// \return Size of the characters, in pixels | ||||
|     /// | ||||
|     /// \see setCharacterSize | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     unsigned int getCharacterSize() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the size of the letter spacing factor | ||||
|     /// | ||||
|     /// \return Size of the letter spacing factor | ||||
|     /// | ||||
|     /// \see setLetterSpacing | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     float getLetterSpacing() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the size of the line spacing factor | ||||
|     /// | ||||
|     /// \return Size of the line spacing factor | ||||
|     /// | ||||
|     /// \see setLineSpacing | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     float getLineSpacing() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the text's style | ||||
|     /// | ||||
|     /// \return Text's style | ||||
|     /// | ||||
|     /// \see setStyle | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     Uint32 getStyle() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the fill color of the text | ||||
|     /// | ||||
|     /// \return Fill color of the text | ||||
|     /// | ||||
|     /// \see setFillColor | ||||
|     /// | ||||
|     /// \deprecated There is now fill and outline colors instead | ||||
|     /// of a single global color. | ||||
|     /// Use getFillColor() or getOutlineColor() instead. | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     SFML_DEPRECATED const Color& getColor() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the fill color of the text | ||||
|     /// | ||||
|     /// \return Fill color of the text | ||||
|     /// | ||||
|     /// \see setFillColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Color& getFillColor() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the outline color of the text | ||||
|     /// | ||||
|     /// \return Outline color of the text | ||||
|     /// | ||||
|     /// \see setOutlineColor | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     const Color& getOutlineColor() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the outline thickness of the text | ||||
|     /// | ||||
|     /// \return Outline thickness of the text, in pixels | ||||
|     /// | ||||
|     /// \see setOutlineThickness | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     float getOutlineThickness() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Return the position of the \a index-th character | ||||
|     /// | ||||
|     /// This function computes the visual position of a character | ||||
|     /// from its index in the string. The returned position is | ||||
|     /// in global coordinates (translation, rotation, scale and | ||||
|     /// origin are applied). | ||||
|     /// If \a index is out of range, the position of the end of | ||||
|     /// the string is returned. | ||||
|     /// | ||||
|     /// \param index Index of the character | ||||
|     /// | ||||
|     /// \return Position of the character | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     Vector2f findCharacterPos(std::size_t index) const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the local bounding rectangle of the entity | ||||
|     /// | ||||
|     /// The returned rectangle is in local coordinates, which means | ||||
|     /// that it ignores the transformations (translation, rotation, | ||||
|     /// scale, ...) that are applied to the entity. | ||||
|     /// In other words, this function returns the bounds of the | ||||
|     /// entity in the entity's coordinate system. | ||||
|     /// | ||||
|     /// \return Local bounding rectangle of the entity | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     FloatRect getLocalBounds() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Get the global bounding rectangle of the entity | ||||
|     /// | ||||
|     /// The returned rectangle is in global coordinates, which means | ||||
|     /// that it takes into account the transformations (translation, | ||||
|     /// rotation, scale, ...) that are applied to the entity. | ||||
|     /// In other words, this function returns the bounds of the | ||||
|     /// text in the global 2D world's coordinate system. | ||||
|     /// | ||||
|     /// \return Global bounding rectangle of the entity | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     FloatRect getGlobalBounds() const; | ||||
|  | ||||
| private: | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Draw the text to a render target | ||||
|     /// | ||||
|     /// \param target Render target to draw to | ||||
|     /// \param states Current render states | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     virtual void draw(RenderTarget& target, RenderStates states) const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     /// \brief Make sure the text's geometry is updated | ||||
|     /// | ||||
|     /// All the attributes related to rendering are cached, such | ||||
|     /// that the geometry is only updated when necessary. | ||||
|     /// | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     void ensureGeometryUpdate() const; | ||||
|  | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     // Member data | ||||
|     //////////////////////////////////////////////////////////// | ||||
|     String              m_string;              ///< String to display | ||||
|     const Font*         m_font;                ///< Font used to display the string | ||||
|     unsigned int        m_characterSize;       ///< Base size of characters, in pixels | ||||
|     float               m_letterSpacingFactor; ///< Spacing factor between letters | ||||
|     float               m_lineSpacingFactor;   ///< Spacing factor between lines | ||||
|     Uint32              m_style;               ///< Text style (see Style enum) | ||||
|     Color               m_fillColor;           ///< Text fill color | ||||
|     Color               m_outlineColor;        ///< Text outline color | ||||
|     float               m_outlineThickness;    ///< Thickness of the text's outline | ||||
|     mutable VertexArray m_vertices;            ///< Vertex array containing the fill geometry | ||||
|     mutable VertexArray m_outlineVertices;     ///< Vertex array containing the outline geometry | ||||
|     mutable FloatRect   m_bounds;              ///< Bounding rectangle of the text (in local coordinates) | ||||
|     mutable bool        m_geometryNeedUpdate;  ///< Does the geometry need to be recomputed? | ||||
|     mutable Uint64      m_fontTextureId;       ///< The font texture id | ||||
| }; | ||||
|  | ||||
| } // namespace sf | ||||
|  | ||||
|  | ||||
| #endif // SFML_TEXT_HPP | ||||
|  | ||||
|  | ||||
| //////////////////////////////////////////////////////////// | ||||
| /// \class sf::Text | ||||
| /// \ingroup graphics | ||||
| /// | ||||
| /// sf::Text is a drawable class that allows to easily display | ||||
| /// some text with custom style and color on a render target. | ||||
| /// | ||||
| /// It inherits all the functions from sf::Transformable: | ||||
| /// position, rotation, scale, origin. It also adds text-specific | ||||
| /// properties such as the font to use, the character size, | ||||
| /// the font style (bold, italic, underlined and strike through), the | ||||
| /// text color, the outline thickness, the outline color, the character | ||||
| /// spacing, the line spacing and the text to display of course. | ||||
| /// It also provides convenience functions to calculate the | ||||
| /// graphical size of the text, or to get the global position | ||||
| /// of a given character. | ||||
| /// | ||||
| /// sf::Text works in combination with the sf::Font class, which | ||||
| /// loads and provides the glyphs (visual characters) of a given font. | ||||
| /// | ||||
| /// The separation of sf::Font and sf::Text allows more flexibility | ||||
| /// and better performances: indeed a sf::Font is a heavy resource, | ||||
| /// and any operation on it is slow (often too slow for real-time | ||||
| /// applications). On the other side, a sf::Text is a lightweight | ||||
| /// object which can combine the glyphs data and metrics of a sf::Font | ||||
| /// to display any text on a render target. | ||||
| /// | ||||
| /// It is important to note that the sf::Text instance doesn't | ||||
| /// copy the font that it uses, it only keeps a reference to it. | ||||
| /// Thus, a sf::Font must not be destructed while it is | ||||
| /// used by a sf::Text (i.e. never write a function that | ||||
| /// uses a local sf::Font instance for creating a text). | ||||
| /// | ||||
| /// See also the note on coordinates and undistorted rendering in sf::Transformable. | ||||
| /// | ||||
| /// Usage example: | ||||
| /// \code | ||||
| /// // Declare and load a font | ||||
| /// sf::Font font; | ||||
| /// font.loadFromFile("arial.ttf"); | ||||
| /// | ||||
| /// // Create a text | ||||
| /// sf::Text text("hello", font); | ||||
| /// text.setCharacterSize(30); | ||||
| /// text.setStyle(sf::Text::Bold); | ||||
| /// text.setFillColor(sf::Color::Red); | ||||
| /// | ||||
| /// // Draw it | ||||
| /// window.draw(text); | ||||
| /// \endcode | ||||
| /// | ||||
| /// \see sf::Font, sf::Transformable | ||||
| /// | ||||
| //////////////////////////////////////////////////////////// | ||||
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