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Actualizada la libreria text.h a la última versión

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This commit is contained in:
Sergio
2022-08-08 18:37:42 +02:00
parent 2b2b822540
commit 386039336e
5 changed files with 169 additions and 303 deletions
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191
source/text.cpp
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@@ -1,84 +1,65 @@
#include "const.h"
#include "text.h"
#include <iostream>
#include <fstream>
Text::Text()
// Constructor
Text::Text(std::string file, LTexture *texture, SDL_Renderer *renderer)
{
mSprite = new Sprite();
init(nullptr, nullptr, 0);
SDL_Rect rect = {0,0,0,0};
mSprite = new Sprite(rect, texture, renderer);
mSprite->setTexture(texture);
mSprite->setRenderer(renderer);
mFile = file;
init();
}
// Destructor
Text::~Text()
{
delete mSprite;
mSprite = nullptr;
}
void Text::init(LTexture *texture, SDL_Renderer *renderer, Uint8 height)
// Inicializador
void Text::init()
{
// Inicializa variables
mHeight = height;
// Inicia los valores del sprite que dibuja las letras
mSprite->setWidth(mHeight);
mSprite->setHeight(mHeight);
mSprite->setPosX(0);
mSprite->setPosY(0);
mSprite->setTexture(texture);
mSprite->setRenderer(renderer);
mSprite->setSpriteClip(0, 0, mSprite->getWidth(), mSprite->getHeight());
// Cadena con los caracteres ascii que se van a inicializar
std::string text = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ{\\[]]^_`abcdefghijklmnopqrstuvwxyz";
// Inicializa a cero el vector con las coordenadas
for (Uint8 i = 0; i < 255; i++)
for (int i = 0; i < 128; i++)
{
mOffset[i].x = 0;
mOffset[i].y = 0;
mOffset[i].w = 0;
}
// Carga los offsets desde el fichero
initOffsetFromFile();
// Inicia los valores del sprite que dibuja las letras
mSprite->setWidth(mBoxWidth);
mSprite->setHeight(mBoxHeight);
mSprite->setPosX(0);
mSprite->setPosY(0);
mSprite->setSpriteClip(0, 0, mSprite->getWidth(), mSprite->getHeight());
// Establece las coordenadas para cada caracter ascii de la cadena y su ancho
for (Uint8 i = 0; i < text.length(); ++i)
for (int i = 32; i < 128; i++)
{
mOffset[int(text[i])].x = ((int(text[i]) - 32) % 15) * mSprite->getWidth();
mOffset[int(text[i])].y = ((int(text[i]) - 32) / 15) * mSprite->getHeight();
mOffset[int(text[i])].w = mHeight;
mOffset[int(text[i])].h = mHeight;
mOffset[i].x = ((i - 32) % 15) * mBoxWidth;
mOffset[i].y = ((i - 32) / 15) * mBoxHeight;
}
}
void Text::write(int x, int y, std::string text, Sint8 kerning, Uint8 lenght)
// Escribe texto en pantalla
void Text::write(int x, int y, std::string text, int kerning, int lenght)
{
Uint16 shift = 0;
std::string text2;
if (lenght > 0)
text2 = text.substr(0, lenght);
else
text2 = text;
for (Uint8 i = 0; i < text2.length(); ++i)
{
mSprite->setSpriteClip(mOffset[int(text2[i])].x, mOffset[int(text2[i])].y, mSprite->getWidth(), mSprite->getHeight());
mSprite->setPosX(x + shift);
mSprite->setPosY(y);
mSprite->render();
shift += (mOffset[int(text2[i])].w + kerning);
}
}
if (lenght == -1)
lenght = text.length();
void Text::writeColored(int x, int y, std::string text, Uint8 R, Uint8 G, Uint8 B)
{
mSprite->getTexture()->setColor(R, G, B);
write(x, y, text);
mSprite->getTexture()->setColor(255, 255, 255);
}
void Text::writeCentered(int x, int y, std::string text, int kerning)
{
// Uint16 lenght = Text::lenght(text, kerning);
x = x - (Text::lenght(text, kerning) / 2);
Uint16 shift = 0;
for (Uint8 i = 0; i < text.length(); ++i)
for (int i = 0; i < lenght; ++i)
{
mSprite->setSpriteClip(mOffset[int(text[i])].x, mOffset[int(text[i])].y, mSprite->getWidth(), mSprite->getHeight());
mSprite->setPosX(x + shift);
@@ -88,22 +69,110 @@ void Text::writeCentered(int x, int y, std::string text, int kerning)
}
}
// Escribe el texto con colores
void Text::writeColored(int x, int y, std::string text, color_t color, int kerning, int lenght)
{
mSprite->getTexture()->setColor(color.r, color.g, color.b);
write(x, y, text, kerning, lenght);
mSprite->getTexture()->setColor(255, 255, 255);
}
// Escribe el texto con sombra
void Text::writeShadowed(int x, int y, std::string text, color_t color, Uint8 shadowDistance, int kerning, int lenght)
{
mSprite->getTexture()->setColor(color.r, color.g, color.b);
write(x + shadowDistance, y + shadowDistance, text, kerning, lenght);
mSprite->getTexture()->setColor(255, 255, 255);
write(x, y, text, kerning, lenght);
}
// Escribe el texto centrado en un punto x
void Text::writeCentered(int x, int y, std::string text, int kerning, int lenght)
{
x -= (Text::lenght(text, kerning) / 2);
write(x, y, text, kerning, lenght);
}
// Escribe texto con extras
void Text::writeDX(Uint8 flags, int x, int y, std::string text, int kerning, color_t textColor, Uint8 shadowDistance, color_t shadowColor, int lenght)
{
const bool centered = ((flags & TXT_CENTER) == TXT_CENTER);
const bool shadowed = ((flags & TXT_SHADOW) == TXT_SHADOW);
const bool colored = ((flags & TXT_COLOR) == TXT_COLOR);
const bool stroked = ((flags & TXT_STROKE) == TXT_STROKE);
if (centered)
x -= (Text::lenght(text, kerning) / 2);
if (shadowed)
writeColored(x + shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
if (stroked)
{
writeColored(x + shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x - shadowDistance, y + shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x + shadowDistance, y - shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x - shadowDistance, y - shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x, y + shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x, y - shadowDistance, text, shadowColor, kerning, lenght);
writeColored(x + shadowDistance, y, text, shadowColor, kerning, lenght);
writeColored(x - shadowDistance, y, text, shadowColor, kerning, lenght);
}
if (colored)
writeColored(x, y, text, textColor, kerning, lenght);
else
write(x, y, text, kerning, lenght);
}
// Obtiene la longitud en pixels de una cadena
Uint16 Text::lenght(std::string text, int kerning)
{
Uint16 shift = 0;
for (Uint8 i = 0; i < text.length(); ++i)
{
for (int i = 0; i < (int)text.length(); ++i)
shift += (mOffset[int(text[i])].w + kerning);
}
return shift;
}
Uint8 Text::getHeight()
// Inicializa el vector de offsets desde un fichero
void Text::initOffsetFromFile()
{
return mHeight;
std::ifstream rfile(mFile);
if (rfile.is_open() && rfile.good())
{
std::string buffer;
//printf("Reading %s file\n", mFile.c_str());
// Lee los dos primeros valores del fichero
std::getline(rfile, buffer);
std::getline(rfile, buffer);
mBoxWidth = std::stoi(buffer);
std::getline(rfile, buffer);
std::getline(rfile, buffer);
mBoxHeight = std::stoi(buffer);
// lee el resto de datos del fichero
int index = 32;
int line_read = 0;
while (std::getline(rfile, buffer))
{
// Almacena solo las lineas impares
if (line_read % 2 == 1)
mOffset[index++].w = std::stoi(buffer);
// Limpia el buffer
buffer.clear();
line_read++;
};
}
}
void Text::setHeight(Uint8 size)
// Devuelve el valor de la variable
Uint8 Text::getCharacterWidth()
{
mHeight = size;
return mBoxWidth;
}