mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-16 10:19:47 +02:00
275 lines
7.3 KiB
C++
275 lines
7.3 KiB
C++
#include "StdInc.h"
|
|
#include "Fonts.h"
|
|
|
|
#include <SDL_ttf.h>
|
|
|
|
#include "SDL_Pixels.h"
|
|
#include "../../lib/JsonNode.h"
|
|
#include "../../lib/vcmi_endian.h"
|
|
#include "../../lib/Filesystem/CResourceLoader.h"
|
|
|
|
/*
|
|
* Fonts.cpp, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
|
|
|
|
void IFont::renderTextLeft(SDL_Surface * surface, const std::string & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
renderText(surface, data, color, pos);
|
|
}
|
|
|
|
void IFont::renderTextRight(SDL_Surface * surface, const std::string & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
Point size(getStringWidth(data), getLineHeight());
|
|
renderText(surface, data, color, pos - size);
|
|
}
|
|
|
|
void IFont::renderTextCenter(SDL_Surface * surface, const std::string & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
Point size(getStringWidth(data), getLineHeight());
|
|
renderText(surface, data, color, pos - size / 2);
|
|
}
|
|
|
|
void IFont::renderTextLinesLeft(SDL_Surface * surface, const std::vector<std::string> & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
Point currPos = pos;
|
|
|
|
BOOST_FOREACH(const std::string & line, data)
|
|
{
|
|
renderTextLeft(surface, line, color, currPos);
|
|
currPos.y += getLineHeight();
|
|
}
|
|
}
|
|
|
|
void IFont::renderTextLinesRight(SDL_Surface * surface, const std::vector<std::string> & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
Point currPos = pos;
|
|
currPos.y -= data.size() * getLineHeight();
|
|
|
|
BOOST_FOREACH(const std::string & line, data)
|
|
{
|
|
renderTextRight(surface, line, color, currPos);
|
|
currPos.y += getLineHeight();
|
|
}
|
|
}
|
|
|
|
void IFont::renderTextLinesCenter(SDL_Surface * surface, const std::vector<std::string> & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
Point currPos = pos;
|
|
currPos.y -= data.size() * getLineHeight()/2;
|
|
|
|
BOOST_FOREACH(const std::string & line, data)
|
|
{
|
|
renderTextCenter(surface, line, color, currPos);
|
|
currPos.y += getLineHeight();
|
|
}
|
|
}
|
|
|
|
std::array<CBitmapFont::Char, CBitmapFont::totalChars> CBitmapFont::loadChars() const
|
|
{
|
|
std::array<Char, totalChars> ret;
|
|
|
|
size_t offset = 32;
|
|
|
|
for (size_t i=0; i< ret.size(); i++)
|
|
{
|
|
ret[i].leftOffset = read_le_u32(data.first.get() + offset); offset+=4;
|
|
ret[i].width = read_le_u32(data.first.get() + offset); offset+=4;
|
|
ret[i].rightOffset = read_le_u32(data.first.get() + offset); offset+=4;
|
|
}
|
|
|
|
for (size_t i=0; i< ret.size(); i++)
|
|
{
|
|
int pixelOffset = read_le_u32(data.first.get() + offset); offset+=4;
|
|
ret[i].pixels = data.first.get() + 4128 + pixelOffset;
|
|
|
|
assert(pixelOffset + 4128 < data.second);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
CBitmapFont::CBitmapFont(const std::string & filename):
|
|
data(CResourceHandler::get()->loadData(ResourceID("data/" + filename, EResType::BMP_FONT))),
|
|
chars(loadChars()),
|
|
height(data.first.get()[5])
|
|
{}
|
|
|
|
size_t CBitmapFont::getLineHeight() const
|
|
{
|
|
return height;
|
|
}
|
|
|
|
size_t CBitmapFont::getSymbolWidth(char data) const
|
|
{
|
|
const Char & ch = chars[ui8(data)];
|
|
return ch.leftOffset + ch.width + ch.rightOffset;
|
|
}
|
|
|
|
size_t CBitmapFont::getStringWidth(const std::string & data) const
|
|
{
|
|
size_t width = 0;
|
|
|
|
BOOST_FOREACH(auto & ch, data)
|
|
{
|
|
width += getSymbolWidth(ch);
|
|
}
|
|
return width;
|
|
}
|
|
|
|
void CBitmapFont::renderCharacter(SDL_Surface * surface, const Char & character, const SDL_Color & color, int &posX, int &posY) const
|
|
{
|
|
Rect clipRect;
|
|
SDL_GetClipRect(surface, &clipRect);
|
|
|
|
posX += character.leftOffset;
|
|
|
|
TColorPutter colorPutter = CSDL_Ext::getPutterFor(surface, 0);
|
|
|
|
Uint8 bpp = surface->format->BytesPerPixel;
|
|
|
|
// start of line, may differ from 0 due to end of surface or clipped surface
|
|
int lineBegin = std::max<int>(0, clipRect.y - posY);
|
|
int lineEnd = std::min<int>(height, clipRect.y + clipRect.h - posY - 1);
|
|
|
|
// start end end of each row, may differ from 0
|
|
int rowBegin = std::max<int>(0, clipRect.x - posX);
|
|
int rowEnd = std::min<int>(character.width, clipRect.x + clipRect.w - posX - 1);
|
|
|
|
//for each line in symbol
|
|
for(int dy = lineBegin; dy <lineEnd; dy++)
|
|
{
|
|
Uint8 *dstLine = (Uint8*)surface->pixels;
|
|
Uint8 *srcLine = character.pixels;
|
|
|
|
// shift source\destination pixels to current position
|
|
dstLine += (posY+dy) * surface->pitch + posX * bpp;
|
|
srcLine += dy * character.width;
|
|
|
|
//for each column in line
|
|
for(int dx = rowBegin; dx < rowEnd; dx++)
|
|
{
|
|
Uint8* dstPixel = dstLine + dx*bpp;
|
|
switch(srcLine[dx])
|
|
{
|
|
case 1: //black "shadow"
|
|
std::fill(dstPixel, dstPixel + bpp, 0);
|
|
break;
|
|
case 255: //text colour
|
|
colorPutter(dstPixel, color.r, color.g, color.b);
|
|
break;
|
|
default :
|
|
break; //transparency
|
|
}
|
|
}
|
|
}
|
|
posX += character.width;
|
|
posX += character.rightOffset;
|
|
}
|
|
|
|
void CBitmapFont::renderText(SDL_Surface * surface, const std::string & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
if (data.empty())
|
|
return;
|
|
|
|
assert(surface);
|
|
|
|
int posX = pos.x;
|
|
int posY = pos.y;
|
|
|
|
// Safe to remove but I would like to trace all cases of this. Please report on Mantis or send note to me
|
|
// Ivan
|
|
assert(data[0] != '{');
|
|
assert(data[data.size()-1] != '}');
|
|
|
|
SDL_LockSurface(surface);
|
|
// for each symbol
|
|
for(size_t index = 0; index < data.size(); index++)
|
|
{
|
|
renderCharacter(surface, chars[ui8(data[index])], color, posX, posY);
|
|
}
|
|
SDL_UnlockSurface(surface);
|
|
}
|
|
|
|
std::pair<std::unique_ptr<ui8[]>, ui64> CTrueTypeFont::loadData(const JsonNode & config)
|
|
{
|
|
std::string filename = "Data/" + config["file"].String();
|
|
return CResourceHandler::get()->loadData(ResourceID(filename, EResType::TTF_FONT));
|
|
}
|
|
|
|
TTF_Font * CTrueTypeFont::loadFont(const JsonNode &config)
|
|
{
|
|
int pointSize = config["size"].Float();
|
|
|
|
if(!TTF_WasInit() && TTF_Init()==-1)
|
|
throw std::runtime_error(std::string("Failed to initialize true type support: ") + TTF_GetError() + "\n");
|
|
|
|
return TTF_OpenFontRW(SDL_RWFromConstMem(data.first.get(), data.second), 1, pointSize);
|
|
}
|
|
|
|
int CTrueTypeFont::getFontStyle(const JsonNode &config)
|
|
{
|
|
const JsonVector & names = config["style"].Vector();
|
|
int ret = 0;
|
|
BOOST_FOREACH(const JsonNode & node, names)
|
|
{
|
|
if (node.String() == "bold")
|
|
ret |= TTF_STYLE_BOLD;
|
|
else if (node.String() == "italic")
|
|
ret |= TTF_STYLE_ITALIC;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
CTrueTypeFont::CTrueTypeFont(const JsonNode & fontConfig):
|
|
data(loadData(fontConfig)),
|
|
font(loadFont(fontConfig), TTF_CloseFont),
|
|
blended(fontConfig["blend"].Bool())
|
|
{
|
|
assert(font);
|
|
|
|
TTF_SetFontStyle(font.get(), getFontStyle(fontConfig));
|
|
}
|
|
|
|
size_t CTrueTypeFont::getLineHeight() const
|
|
{
|
|
return TTF_FontHeight(font.get());
|
|
}
|
|
|
|
size_t CTrueTypeFont::getSymbolWidth(char data) const
|
|
{
|
|
int advance;
|
|
TTF_GlyphMetrics(font.get(), data, NULL, NULL, NULL, NULL, &advance);
|
|
return advance;
|
|
}
|
|
|
|
size_t CTrueTypeFont::getStringWidth(const std::string & data) const
|
|
{
|
|
int width;
|
|
TTF_SizeText(font.get(), data.c_str(), &width, NULL);
|
|
return width;
|
|
}
|
|
|
|
void CTrueTypeFont::renderText(SDL_Surface * surface, const std::string & data, const SDL_Color & color, const Point & pos) const
|
|
{
|
|
if (!data.empty())
|
|
{
|
|
SDL_Surface * rendered;
|
|
if (blended)
|
|
rendered = TTF_RenderText_Solid(font.get(), data.c_str(), color);
|
|
else
|
|
rendered = TTF_RenderText_Blended(font.get(), data.c_str(), color);
|
|
|
|
assert(rendered);
|
|
|
|
Rect rect(pos.x, pos.y, rendered->w, rendered->h);
|
|
SDL_BlitSurface(rendered, NULL, surface, &rect);
|
|
SDL_FreeSurface(rendered);
|
|
}
|
|
}
|