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Copy pathFont.cpp
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134 lines (125 loc) · 3.32 KB
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/*
* Copyright 2010 Daniel Albano
*
* This file is part of OpenXcom.
*
* OpenXcom 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 3 of the License, or
* (at your option) any later version.
*
* OpenXcom 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 OpenXcom. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Font.h"
#include "Surface.h"
// Fonts start with this character
#define FIRST_CHAR '!'
/**
* Initializes the font with a blank surface sized big enough to
* contain all the characters.
* @param width Width in pixels of each character.
* @param height Height in pixels of each character.
* @param nchar Number of characters the font contains.
* @param spacing Horizontal spacing between each character.
*/
Font::Font(int width, int height, int nchar, int spacing) : _width(width), _height(height), _nchar(nchar), _chars(), _spacing(spacing)
{
_surface = new Surface(width, height*nchar);
}
/**
* Deletes the font's surface.
*/
Font::~Font()
{
delete _surface;
}
/**
* Calculates the real size and position of each character in
* the surface and stores them in SDL_Rect's for future use
* by other classes.
*/
void Font::load()
{
_surface->lock();
for (unsigned char i = FIRST_CHAR; i < FIRST_CHAR + _nchar; i++)
{
SDL_Rect rect;
int left = -1, right = -1;
for (int x = 0; x < _width; x++)
{
for (int y = (i - FIRST_CHAR) * _height; (y < (i + 1 - FIRST_CHAR) * _height) && (left == -1); y++)
{
Uint8 pixel = _surface->getPixel(x, y);
if (pixel != 0)
left = x;
}
}
for (int x = _width - 1; x >= 0; x--)
{
for (int y = (i + 1 - FIRST_CHAR) * _height - 1; (y >= (i - FIRST_CHAR) * _height) && (right == -1); y--)
{
Uint8 pixel = _surface->getPixel(x, y);
if (pixel != 0)
right = x;
}
}
rect.x = left;
rect.y = (i - FIRST_CHAR) * _height;
rect.w = right - left + 1;
rect.h = _height;
_chars[i] = rect;
}
_surface->unlock();
}
/**
* Returns a particular character from the set stored in the font.
* @param c Character to use for size/position.
* @return Pointer to the font's surface with the respective
* cropping rectangle set up.
*/
Surface *Font::getChar(char c)
{
_surface->setCrop(&_chars[c]);
return _surface;
}
/**
* Returns the maximum width for any character in the font.
* @return Width in pixels.
*/
int Font::getWidth()
{
return _width;
}
/**
* Returns the maximum height for any character in the font.
* @return Height in pixels.
*/
int Font::getHeight()
{
return _height;
}
/**
* Returns the horizontal spacing for any character in the font.
* @return Spacing in pixels.
* @note This does not refer to character spacing within the surface,
* but to the spacing used when drawing a series of characters.
*/
int Font::getSpacing()
{
return _spacing;
}
/**
* Returns the surface stored within the font. Used for loading the
* actual graphic into the font.
* @return Pointer to the internal surface.
*/
Surface* Font::getSurface()
{
return _surface;
}