Aegisub/aegisub/gl_text.h

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// Copyright (c) 2007, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------------
//
// AEGISUB
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
#pragma once
///////////
// Headers
#include <wx/wxprec.h>
#ifdef HAVE_APPLE_OPENGL_FRAMEWORK
#include <OpenGL/GL.h>
#else
#include <GL/gl.h>
#endif
#include <map>
#include <vector>
/////////////////////
// Glyph information
class OpenGLTextGlyph {
private:
static wxBitmap *tempBmp;
public:
int value;
int tex;
float x1,y1,x2,y2;
int w,h;
void GetMetrics();
void Draw(int x,int y);
};
typedef std::map<int,OpenGLTextGlyph> glyphMap;
///////////////
// Texture map
class OpenGLTextTexture {
private:
int x,y,nextY;
int width,height;
void Insert(OpenGLTextGlyph &glyph);
public:
GLuint tex;
bool TryToInsert(OpenGLTextGlyph &glyph);
OpenGLTextTexture(int w,int h);
~OpenGLTextTexture();
};
/////////////////////////////
// OpenGL Text Drawing class
class OpenGLText {
private:
float r,g,b,a;
int lineHeight;
int fontSize;
bool fontBold;
bool fontItalics;
wxString fontFace;
wxFont font;
static OpenGLText* instance;
glyphMap glyphs;
std::vector <OpenGLTextTexture*> textures;
OpenGLText();
~OpenGLText();
OpenGLTextGlyph GetGlyph(int i);
OpenGLTextGlyph CreateGlyph(int i);
void Reset();
static OpenGLText* GetInstance();
void DoSetFont(wxString face,int size,bool bold,bool italics);
void DoSetColour(wxColour col,float alpha);
void DoPrint(wxString text,int x,int y);
void DrawString(wxString text,int x,int y);
void DoGetExtent(wxString text,int &w,int &h);
public:
static wxFont GetFont() { return GetInstance()->font; }
static void SetFont(wxString face=_T("Verdana"),int size=10,bool bold=true,bool italics=false) { GetInstance()->DoSetFont(face,size,bold,italics); }
static void SetColour(wxColour col,float alpha=1.0f) { GetInstance()->DoSetColour(col,alpha); }
static void Print(wxString text,int x,int y) { GetInstance()->DoPrint(text,x,y); }
static void GetExtent(wxString text,int &w,int &h) { GetInstance()->DoGetExtent(text,w,h); }
};