View2DFont.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
 
 
#pragma once
 
#include "SoView2DSystem.h"
 
 
class SOVIEW2D_API View2DFont
{
public:
  View2DFont();
  virtual ~View2DFont();
 
  enum AlignXMode {
    ALIGN_LEFT,
    ALIGN_RIGHT,
    ALIGN_CENTER
  };
 
  virtual bool   init(const char* fontname = nullptr) = 0;
 
  virtual int    getFontHeight(float fontSize) const = 0;
 
  virtual int    getFontAscender(float fontSize) const = 0;
 
  virtual int    getFontDescender(float fontSize) const = 0;
 
  virtual int    getStringWidth(float fontSize, const char* string, int len) const = 0;
 
  virtual void   drawString(float dx, float dy, float fontSize, const float* color, const char* string, int length, bool shadow = true, const float* shadowColor = nullptr, bool flipped = false) = 0;
 
  void drawStringFlipped(float dx, float dy, float fontSize, const float* color, const char* string, int length, bool shadow = true, const float* shadowColor = nullptr)
  {
    drawString(dx, dy, fontSize, color, string, length, shadow, shadowColor, true);
  }
 
  virtual void   getTextSize(float fontSize, const char* text, int &width, int &height, float lineSpacing = 0.0f) const;
 
  virtual void   drawText(float dx, float dy, float fontSize, const float* color, const char* text, AlignXMode mode, bool shadow = true, float lineSpacing = 0.0f, const float* shadowColor = nullptr);
 
 
  static View2DFont* globalFont();
 
  static View2DFont* createFont(const char* fontname = nullptr);
 
private:
  static View2DFont* _globalFont;
 
};