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Copy pathFont.cpp
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266 lines (247 loc) · 6.59 KB
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/*
* Copyright 2010-2016 OpenXcom Developers.
*
* 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 "DosFont.h"
#include "Surface.h"
#include "FileMap.h"
#include "Language.h"
namespace OpenXcom
{
/**
* Initializes the font with a blank surface.
*/
Font::Font() : _monospace(false)
{
}
/**
* Deletes the font's surface.
*/
Font::~Font()
{
for (std::vector<FontImage>::iterator i = _images.begin(); i != _images.end(); ++i)
{
delete (*i).surface;
}
}
/**
* Loads the font from a YAML file.
* @param node YAML node.
*/
void Font::load(const YAML::Node &node)
{
int width = node["width"].as<int>(0);
int height = node["height"].as<int>(0);
int spacing = node["spacing"].as<int>(0);
_monospace = node["monospace"].as<bool>(_monospace);
for (YAML::const_iterator i = node["images"].begin(); i != node["images"].end(); ++i)
{
FontImage image;
image.width = (*i)["width"].as<int>(width);
image.height = (*i)["height"].as<int>(height);
image.spacing = (*i)["spacing"].as<int>(spacing);
std::string file = "Language/" + (*i)["file"].as<std::string>();
std::wstring chars = Language::utf8ToWstr((*i)["chars"].as<std::string>());
image.surface = new Surface(image.width, image.height);
image.surface->loadImage(FileMap::getFilePath(file));
_images.push_back(image);
init(_images.size() - 1, chars);
}
}
/**
* Generates a pre-defined Codepage 437 (MS-DOS terminal) font.
*/
void Font::loadTerminal()
{
FontImage image;
image.width = 9;
image.height = 16;
image.spacing = 0;
_monospace = true;
SDL_RWops *rw = SDL_RWFromConstMem(dosFont, DOSFONT_SIZE);
SDL_Surface *s = SDL_LoadBMP_RW(rw, 0);
SDL_FreeRW(rw);
image.surface = new Surface(s->w, s->h);
SDL_Color terminal[2] = {{0, 0, 0, 0}, {185, 185, 185, 255}};
image.surface->setPalette(terminal, 0, 2);
SDL_BlitSurface(s, 0, image.surface->getSurface(), 0);
SDL_FreeSurface(s);
_images.push_back(image);
init(0, L" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~");
}
/**
* 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.
* @param index The index of the surface to use.
* @param str A string of characters to map to the surface.
*/
void Font::init(size_t index, const std::wstring &str)
{
FontImage *image = &_images[index];
Surface *surface = image->surface;
surface->lock();
int length = (surface->getWidth() / image->width);
if (_monospace)
{
for (size_t i = 0; i < str.length(); ++i)
{
SDL_Rect rect;
int startX = i % length * image->width;
int startY = i / length * image->height;
rect.x = startX;
rect.y = startY;
rect.w = image->width;
rect.h = image->height;
_chars[str[i]] = std::make_pair(index, rect);
}
}
else
{
for (size_t i = 0; i < str.length(); ++i)
{
SDL_Rect rect;
int left = -1, right = -1;
int startX = i % length * image->width;
int startY = i / length * image->height;
for (int x = startX; x < startX + image->width; ++x)
{
for (int y = startY; y < startY + image->height && left == -1; ++y)
{
Uint8 pixel = surface->getPixel(x, y);
if (pixel != 0)
{
left = x;
}
}
}
for (int x = startX + image->width - 1; x >= startX; --x)
{
for (int y = startY + image->height; y-- != startY && right == -1;)
{
Uint8 pixel = surface->getPixel(x, y);
if (pixel != 0)
{
right = x;
}
}
}
rect.x = left;
rect.y = startY;
rect.w = right - left + 1;
rect.h = image->height;
_chars[str[i]] = std::make_pair(index, 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(wchar_t c)
{
if (_chars.find(c) == _chars.end())
{
return 0;
}
Surface *surface = _images[_chars[c].first].surface;
*surface->getCrop() = _chars[c].second;
return surface;
}
/**
* Returns the maximum width for any character in the font.
* @return Width in pixels.
*/
int Font::getWidth() const
{
return _images[0].width;
}
/**
* Returns the maximum height for any character in the font.
* @return Height in pixels.
*/
int Font::getHeight() const
{
return _images[0].height;
}
/**
* Returns the 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 between multiple characters in a line.
*/
int Font::getSpacing() const
{
return _images[0].spacing;
}
/**
* Returns the dimensions of a particular character in the font.
* @param c Font character.
* @return Width and Height dimensions (X and Y are ignored).
*/
SDL_Rect Font::getCharSize(wchar_t c)
{
SDL_Rect size = { 0, 0, 0, 0 };
if (c != TOK_FLIP_COLORS && !isLinebreak(c) && !isSpace(c))
{
if (_chars.find(c) == _chars.end())
c = L'?';
FontImage *image = &_images[_chars[c].first];
size.w = _chars[c].second.w + image->spacing;
size.h = _chars[c].second.h + image->spacing;
}
else
{
if (_monospace)
size.w = getWidth() + getSpacing();
else if (isNonBreakableSpace(c))
size.w = getWidth() / 4;
else
size.w = getWidth() / 2;
size.h = getHeight() + getSpacing();
}
// In case anyone mixes them up
size.x = size.w;
size.y = size.h;
return size;
}
/**
* Returns the font's 8bpp palette.
* @return Pointer to the palette's colors.
*/
SDL_Color *Font::getPalette() const
{
return _images[0].surface->getPalette();
}
/**
* Replaces a certain amount of colors in the font's palette.
* @param colors Pointer to the set of colors.
* @param firstcolor Offset of the first color to replace.
* @param ncolors Amount of colors to replace.
*/
void Font::setPalette(SDL_Color *colors, int firstcolor, int ncolors)
{
for (std::vector<FontImage>::iterator i = _images.begin(); i != _images.end(); ++i)
{
(*i).surface->setPalette(colors, firstcolor, ncolors);
}
}
}