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source: orxonox.OLD/trunk/src/lib/graphics/text_engine/text.h @ 6198

Last change on this file since 6198 was 5768, checked in by bensch, 19 years ago

orxonox/trunk: font is a Texture now (this is a procedural texture)

File size: 2.7 KB
Line 
1/*!
2 * @file text.h
3 * @brief Definition of a text Class, that is able to render text.
4*/
5
6#ifndef _TEXT_H
7#define _TEXT_H
8
9#include "element_2d.h"
10
11#include "glincl.h"
12
13#define  TEXT_ALIGN_LEFT             E2D_ALIGN_LEFT
14#define  TEXT_ALIGN_RIGHT            E2D_ALIGN_RIGHT
15#define  TEXT_ALIGN_CENTER           E2D_ALIGN_CENTER
16#define  TEXT_ALIGN_SCREEN_CENTER    E2D_ALIGN_SCREEN_CENTER
17#define  TEXT_DEFAULT_COLOR          Vector(1.0, 1.0, 1.0)      //!< the default Color (white)
18#define  TEXT_DEFAULT_BLENDING       1.0f                       //!< the default blending of the text, (no blending at all)
19
20#define  TEXT_DEFAULT_ALIGNMENT      TEXT_ALIGN_LEFT            //!< default alignment
21#define  TEXT_DEFAULT_SIZE           20                         //!< default size of the Text
22
23
24// FORWARD DECLARATION
25class Font;
26struct SDL_Surface;
27
28//! A Struct to handel Texture Coordinates for quads
29struct TexCoord
30{
31  float    minU;              //!< The minimum U-Coordinate
32  float    maxU;              //!< The maximum U-Coordinate
33  float    minV;              //!< The minimum V-Coordinate
34  float    maxV;              //!< The maximum V-Coordinate
35};
36
37//! Represents one textElement.
38class Text : public Element2D
39{
40  public:
41    Text(const char* fontFile = NULL, unsigned int fontSize = TEXT_DEFAULT_SIZE);
42    ~Text();
43    void init();
44
45    void setFont(const char* fontFile, unsigned int renderSize);
46
47    void setText(const char* text, bool isExtern = false);
48
49    /** @returns the String this Text displays */
50    inline const char* getText() const { return (externText == NULL)?this->text:this->externText; };
51    /** @param blending the blending intensity to set (between 0.0 and 1.0) */
52    inline void setBlending(float blending) { this->blending = blending; };
53    /** sets the Color of the Text to render (values in [0-1]) @param r red @param g green @param b blue */
54    void setColor(float r, float g, float b) { this->color = Vector(r, g, b); };
55    /** sets the Size of the Font */
56    void setSize(float size) { this->setSizeY2D(size); };
57    /** @returns the Size of the Text */
58//    void getSize(float &x, float& y) const { return this->size; };
59
60    virtual void draw() const;
61
62    void debug() const;
63
64  // helpers.
65    static GLuint loadTexture(SDL_Surface* surface, TexCoord* texCoord);
66    static int powerOfTwo(int input);
67
68  private:
69    Font*             font;           //!< Font of this text
70
71    char*             text;           //!< The text to display
72    const char*       externText;     //!< the text to Display from an external Source.
73    Vector            color;          //!< The color of the font.
74    float             blending;       //!< The blending intensity.
75};
76
77#endif /* _TEXT_H */
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