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initial commit. This is icculus version 5542b94cae02a6333845854bbbd1abe0a259f1a4

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fgenesis 2011-08-03 22:05:33 +02:00
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BBGE/TTFFont.cpp Normal file
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/*
Copyright (C) 2007, 2010 - Bit-Blot
This file is part of Aquaria.
Aquaria is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "TTFFont.h"
TTFFont::TTFFont()
{
font = 0;
}
TTFFont::~TTFFont()
{
if (font)
{
delete font;
font = 0;
}
}
void TTFFont::destroy()
{
if (font)
{
delete font;
font = 0;
}
}
void TTFFont::load(const std::string &str, int sz)
{
font = new FTGLTextureFont(str.c_str());
font->FaceSize(sz);
}
void TTFFont::create(const unsigned char *data, unsigned long datalen, int sz)
{
font = new FTGLTextureFont(data, datalen);
font->FaceSize(sz);
}
TTFText::TTFText(TTFFont *font) : RenderObject(), font(font)
{
align = ALIGN_LEFT;
hw = 0;
h = 0;
width = 0;
shadow = false;
}
void TTFText::setText(const std::string &txt)
{
originalText = txt;
updateAlign();
updateFormatting();
}
void TTFText::setAlign(Align align)
{
this->align = align;
updateAlign();
updateFormatting();
}
void TTFText::updateAlign()
{
float llx, lly, llz, urx, ury, urz;
font->font->BBox(originalText.c_str(), llx, lly, llz, urx, ury, urz);
if (align == ALIGN_CENTER)
{
float w = urx - llx;
hw = w/2;
h = ury - lly;
}
else
{
hw = 0;
}
}
float TTFText::getWidth()
{
float llx, lly, llz, urx, ury, urz;
font->font->BBox(originalText.c_str(), llx, lly, llz, urx, ury, urz);
return urx - llx;
}
float TTFText::getHeight()
{
float llx, lly, llz, urx, ury, urz;
font->font->BBox(originalText.c_str(), llx, lly, llz, urx, ury, urz);
return ury - lly;
}
float TTFText::getFullHeight()
{
/*
float llx, lly, llz, urx, ury, urz;
font->font->BBox(originalText.c_str(), llx, lly, llz, urx, ury, urz);
float diff = ury - lly;
*/
return text.size()*lineHeight;
}
void TTFText::setWidth(int width)
{
this->width = width;
updateAlign();
updateFormatting();
}
void TTFText::updateFormatting()
{
int start = 0, lastSpace = -1;
text.clear();
int i=0;
int sz = originalText.size();
for (i = 0; i < sz; i++)
{
if (originalText[i] == '\n')
{
text.push_back(originalText.substr(start, i-start));
start = i+1;
}
else
{
if (originalText[i] == ' ')
{
lastSpace = i;
}
float llx, lly, llz, urx, ury, urz;
font->font->BBox(originalText.substr(start, i-start).c_str(), llx, lly, llz, urx, ury, urz);
int w = urx - llx;
if (width != 0 && w >= width)
{
if (lastSpace != -1) {
text.push_back(originalText.substr(start, lastSpace-start));
i = lastSpace+1;
lastSpace = -1;
start = i;
}
else {
text.push_back(originalText.substr(start, i-start));
}
}
}
}
if (i == sz)
{
text.push_back(originalText.substr(start, i-start));
}
lineHeight = font->font->LineHeight();
}
void TTFText::onUpdate(float dt)
{
RenderObject::onUpdate(dt);
}
int TTFText::getLineHeight()
{
return lineHeight;
}
int TTFText::findLine(const std::string &label)
{
for (int i = 0; i < text.size(); i++)
{
if (text[i].find(label) != std::string::npos)
{
return i;
}
}
return 0;
}
void TTFText::onRender()
{
/*
glColor4f(0,0,0,0.5);
glBegin(GL_QUADS);
glVertex2f(-hw, h/2);
glVertex2f(hw, h/2);
glVertex2f(hw, -h/2);
glVertex2f(-hw, -h/2);
glEnd();
*/
for (int i = 0; i < text.size(); i++)
{
if (shadow)
{
glColor4f(0,0,0,0.75f*alpha.x*alphaMod);
glPushMatrix();
glScalef(1, -1, 0);
glTranslatef(1 -hw, -1 + (i*-lineHeight), 0);
font->font->Render(text[i].c_str());
glPopMatrix();
}
glColor4f(color.x, color.y, color.z, alpha.x*alphaMod);
glPushMatrix();
glScalef(1, -1, 0);
glTranslatef(-hw, 0 + (i*-lineHeight), 0);
font->font->Render(text[i].c_str());
glPopMatrix();
}
glBindTexture(GL_TEXTURE_2D, 0);
RenderObject::lastTextureApplied = 0;
/*
glBindTexture(GL_TEXTURE_2D, 0);
glLineWidth(2);
glBegin(GL_LINES);
glVertex2f(-hw, 5);
glVertex2f(hw, 5);
glEnd();
*/
}