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Aquaria/BBGE/BitmapFont.cpp
fgenesis 8472718fb7 Major include refactor; changes to pretty much everything
This untangles some of the gigantic kitchen sink headers
in an attempt to split things into smaller files.
Also don't include gl.h, glext.h, windows.h,
and other such nonsense *everywhere*.

Lots of cleanups on the way too. More dead/unused code removal.

Remove incrFlag(), decrFlag() Lua functions.
2016-07-09 04:18:40 +02:00

414 lines
7.5 KiB
C++

/*
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 "BitmapFont.h"
#include "RenderBase.h"
#include "Core.h"
#include "../ExternalLibs/glfont2/glfont2.h"
using namespace glfont;
BmpFont::BmpFont()
: font(new GLFont)
{
scale = 1;
loaded = false;
overrideTexture = 0;
fontTopColor = Vector(1,1,1);
fontBtmColor = Vector(1,1,1);
}
BmpFont::~BmpFont()
{
delete font;
destroy();
}
void BmpFont::destroy()
{
if (loaded)
{
font->Destroy();
loaded = false;
}
overrideTexture = NULL;
}
void BmpFont::load(const std::string &file, float scale, bool loadTexture)
{
if (loaded)
font->Destroy();
this->scale = scale;
GLuint id=0;
glGenTextures(1, &id);
if (!font->Create(file.c_str(), id, loadTexture))
return;
loaded = true;
}
Texture *fontTextureTest = 0;
BitmapText::BitmapText(BmpFont *bmpFont)
{
this->bmpFont = bmpFont;
bfePass =0;
bfe = BFE_NONE;
currentScrollLine = currentScrollChar = 0;
scrollDelay = 0;
scrolling = false;
align = ALIGN_CENTER;
textWidth = 600;
this->fontDrawSize = 24;
cull = false;
alignWidth = 0;
}
void BitmapText::autoKern()
{
}
int BitmapText::getWidthOnScreen()
{
return text.size()*(fontDrawSize/2);
}
void BitmapText::setAlign(Align align)
{
this->align = align;
}
std::string BitmapText::getText()
{
return this->text;
}
void BitmapText::setText(const std::string &text)
{
this->text = text;
formatText();
}
void BitmapText::setWidth(float width)
{
textWidth = width;
}
float BitmapText::getSetWidth()
{
return textWidth;
}
float BitmapText::getHeight()
{
float sz = bmpFont->font->GetCharHeight('A') * bmpFont->scale;
return lines.size()*sz;
}
float BitmapText::getLineHeight()
{
return bmpFont->font->GetCharHeight('A') * bmpFont->scale;
}
void BitmapText::formatText()
{
std::string text;
text = this->text;
lines.clear();
std::string currentLine;
int lastSpace = -1;
float currentWidth = 0;
alignWidth = 0;
maxW = 0;
for (int i = 0; i < text.size(); i++)
{
float sz = bmpFont->font->GetCharWidth(text[i])*bmpFont->scale;
currentWidth += sz;
if (currentWidth+sz >= textWidth || text[i] == '\n')
{
if (text[i] == '\n')
{
lastSpace = i;
}
lines.push_back(text.substr(0, lastSpace));
int tsz = text.size();
text = text.substr(lastSpace+1, tsz);
i = 0;
alignWidth = currentWidth;
maxW = std::max(currentWidth, maxW);
currentWidth = 0;
lastSpace = 0;
continue;
}
if (text[i] == ' ')
{
lastSpace = i;
}
}
maxW = std::max(currentWidth, maxW);
if (alignWidth == 0)
alignWidth = currentWidth;
if (!text.empty() && (text.size() > 1 || text[0] != ' '))
{
lines.push_back(text);
}
colorIndices.clear();
}
void BitmapText::setBitmapFontEffect(BitmapFontEffect bfe)
{
this->bfe = bfe;
}
void BitmapText::updateWordColoring()
{
colorIndices.resize(lines.size());
for (int i = 0; i < colorIndices.size(); i++)
{
colorIndices[i].resize(lines[i].size());
for (int j = 0; j < colorIndices[i].size(); j++)
{
colorIndices[i][j] = Vector(1,1,1);
}
}
}
bool BitmapText::isEmpty()
{
return lines.empty();
}
void BitmapText::scrollText(const std::string &text, float scrollSpeed)
{
if (text.empty()) return;
this->scrollSpeed = scrollSpeed;
scrollDelay = scrollSpeed;
this->text = text;
scrolling = true;
formatText();
currentScrollLine = 0;
currentScrollChar = 0;
}
void BitmapText::setFontSize(float sz)
{
this->fontDrawSize = sz;
}
void BitmapText::onUpdate(float dt)
{
bfePass = 0;
RenderObject::onUpdate(dt);
if (scrollDelay > 0 && scrolling)
{
if (lines.empty())
{
currentScrollLine = 0;
scrolling = false;
scrollDelay = 0;
}
else
{
scrollDelay -= dt;
while (scrollDelay <= 0)
{
float diff = scrollDelay;
scrollDelay = scrollSpeed;
scrollDelay += diff;
currentScrollChar ++;
if (currentScrollChar >= lines[currentScrollLine].size())
{
currentScrollLine++;
currentScrollChar = 0;
if (currentScrollLine >= lines.size())
{
currentScrollLine = 0;
scrolling = false;
}
}
}
}
}
}
Vector BitmapText::getColorIndex(int i, int j)
{
Vector c(1,1,1);
if (!(i < 0 || j < 0))
{
if ( i < colorIndices.size() && j < colorIndices[i].size())
{
c = colorIndices[i][j];
}
}
return c;
}
void BitmapText::onRender()
{
if (!bmpFont) return;
float top_color[3] = {bmpFont->fontTopColor.x*color.x, bmpFont->fontTopColor.y*color.y, bmpFont->fontTopColor.z*color.z};
float bottom_color[3] = {bmpFont->fontBtmColor.x*color.x, bmpFont->fontBtmColor.y*color.y, bmpFont->fontBtmColor.z*color.z};
glEnable(GL_TEXTURE_2D);
bmpFont->font->Begin();
if (fontTextureTest) fontTextureTest->apply();
if (bmpFont->overrideTexture) bmpFont->overrideTexture->apply();
float y=0;
float x=0;
float adj = bmpFont->font->GetCharHeight('A') * bmpFont->scale;
if (scrolling)
{
for (int i = 0; i <= currentScrollLine; i++)
{
std::string theLine = lines[i];
if (i == currentScrollLine)
theLine = theLine.substr(0, currentScrollChar);
x=0;
if (align == ALIGN_CENTER)
{
std::pair<int, int> sz;
bmpFont->font->GetStringSize(lines[i], &sz);
x = -sz.first*0.5f*bmpFont->scale;
}
float la = 1.0f-(scrollDelay/scrollSpeed);
bmpFont->font->DrawString(theLine, bmpFont->scale, x, y, top_color, bottom_color, alpha.x, la);
y += adj;
}
}
else
{
for (int i = 0; i < lines.size(); i++)
{
x=0;
if (align == ALIGN_CENTER)
{
std::pair<int, int> sz;
bmpFont->font->GetStringSize(lines[i], &sz);
x = -sz.first*0.5f*bmpFont->scale;
}
bmpFont->font->DrawString(lines[i], bmpFont->scale, x, y, top_color, bottom_color, alpha.x, 1);
y += adj;
}
}
glBindTexture(GL_TEXTURE_2D, 0);
}
void BitmapText::unloadDevice()
{
RenderObject::unloadDevice();
}
void BitmapText::reloadDevice()
{
RenderObject::reloadDevice();
setText(this->text);
}
void BitmapText::render()
{
RenderObject::render();
if (!bfePass)
{
if (bfe == BFE_SHADOWBLUR)
{
InterpolatedVector oldAlpha = alpha, oldPos = position;
Vector adjust(rand()%5-2, rand()%5-2+2);
position += adjust;
alpha *= 0.4f;
bfePass = 1;
RenderObject::render();
alpha = oldAlpha;
position = oldPos;
}
}
}
void BitmapText::stopScrollingText()
{
scrolling = false;
}
bool BitmapText::isScrollingText()
{
return scrolling;
}
int BitmapText::getNumLines()
{
return lines.size();
}
float BitmapText::getStringWidth(const std::string& text)
{
std::string tmp;
int maxsize = 0;
tmp.reserve(text.length());
for (size_t i = 0; i < text.size(); i++)
{
if(text[i] == '\n')
{
std::pair<int, int> dim;
bmpFont->font->GetStringSize(tmp, &dim);
maxsize = std::max(maxsize, dim.first);
tmp.resize(0);
}
else
tmp += text[i];
}
std::pair<int, int> dim;
bmpFont->font->GetStringSize(tmp, &dim);
maxsize = std::max(maxsize, dim.first);
return maxsize * bmpFont->scale;
}