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Copy pathText.cpp
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462 lines (418 loc) · 8.92 KB
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/*
* Copyright 2010 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 "Text.h"
#include <sstream>
#include "../Engine/Font.h"
namespace OpenXcom
{
/**
* Sets up a blank text with the specified size and position.
* @param width Width in pixels.
* @param height Height in pixels.
* @param x X position in pixels.
* @param y Y position in pixels.
*/
Text::Text(int width, int height, int x, int y) : Surface(width, height, x, y), _big(0), _small(0), _font(0), _text(L""), _wrap(false), _invert(false), _contrast(false), _align(ALIGN_LEFT), _valign(ALIGN_TOP), _color(0), _color2(0)
{
}
/**
*
*/
Text::~Text()
{
}
/**
* Takes an integer value and formats it as currency,
* spacing the thousands and adding a $ sign to the front.
* @param funds The funding value.
* @return The formatted string.
*/
std::wstring Text::formatFunding(int funds)
{
std::wstringstream ss;
ss << funds;
std::wstring s = ss.str();
size_t spacer = s.size() - 3;
while (spacer > 0 && spacer < s.size())
{
s.insert(spacer, L" ");
spacer -= 3;
}
s.insert(0, L"$");
return s;
}
/**
* Takes an integer value and formats it as percentage,
* adding a % sign.
* @param value The percentage value.
* @return The formatted string.
*/
std::wstring Text::formatPercentage(int value)
{
std::wstringstream ss;
ss << value;
ss << "%";
return ss.str();
}
/**
* Changes the text to use the big-size font.
*/
void Text::setBig()
{
_font = _big;
processText();
}
/**
* Changes the text to use the small-size font.
*/
void Text::setSmall()
{
_font = _small;
processText();
}
/**
* Returns the font currently used by the text.
* @return Pointer to font.
*/
Font *const Text::getFont() const
{
return _font;
}
/**
* Changes the various fonts for the text to use.
* The different fonts need to be passed in advance since the
* text size can change mid-text.
* @param big Pointer to large-size font.
* @param small Pointer to small-size font.
*/
void Text::setFonts(Font *big, Font *small)
{
_big = big;
_small = small;
_font = _small;
processText();
}
/**
* Changes the string displayed on screen.
* @param text Text string.
*/
void Text::setText(const std::wstring &text)
{
_text = text;
processText();
}
/**
* Returns the string displayed on screen.
* @return Text string.
*/
std::wstring Text::getText() const
{
return _text;
}
/**
* Enables/disables text wordwrapping. When enabled, lines of
* text are automatically split to ensure they stay within the
* drawing area, otherwise they simply go off the edge.
* @param wrap Wordwrapping setting.
*/
void Text::setWordWrap(bool wrap)
{
if (wrap != _wrap)
{
_wrap = wrap;
processText();
}
}
/**
* Enables/disables color inverting. Mostly used to make
* button text look pressed along with the button.
* @param invert Invert setting.
*/
void Text::setInvert(bool invert)
{
_invert = invert;
draw();
}
/**
* Enables/disables high contrast color. Mostly used for
* Battlescape text.
* @param contrast High contrast setting.
*/
void Text::setHighContrast(bool contrast)
{
_contrast = contrast;
draw();
}
/**
* Changes the way the text is aligned horizontally
* relative to the drawing area.
* @param align Horizontal alignment.
*/
void Text::setAlign(TextHAlign align)
{
_align = align;
draw();
}
/**
* Changes the way the text is aligned vertically
* relative to the drawing area.
* @param valign Vertical alignment.
*/
void Text::setVerticalAlign(TextVAlign valign)
{
_valign = valign;
draw();
}
/**
* Changes the color used to render the text. Unlike regular graphics,
* fonts are greyscale so they need to be assigned a specific position
* in the palette to be displayed.
* @param color Color value.
*/
void Text::setColor(Uint8 color)
{
_color = color;
draw();
}
/**
* Returns the color used to render the text.
* @return Color value.
*/
Uint8 Text::getColor() const
{
return _color;
}
/**
* Changes the secondary color used to render the text. The text
* switches between the primary and secondary color whenever there's
* a 0x01 in the string.
* @param color Color value.
*/
void Text::setSecondaryColor(Uint8 color)
{
_color2 = color;
draw();
}
/**
* Returns the secondary color used to render the text.
* @return Color value.
*/
Uint8 Text::getSecondaryColor() const
{
return _color2;
}
/**
* Returns the rendered text's height. Useful to check if wordwrap applies.
* @return Height in pixels.
*/
int Text::getTextHeight() const
{
int height = 0;
for (std::vector<int>::const_iterator i = _lineHeight.begin(); i != _lineHeight.end(); ++i)
{
height += *i;
}
return height;
}
/**
* Returns the rendered text's width.
* @return Width in pixels.
*/
int Text::getTextWidth() const
{
int width = 0;
for (std::vector<int>::const_iterator i = _lineWidth.begin(); i != _lineWidth.end(); ++i)
{
if (*i > width)
{
width = *i;
}
}
return width;
}
/**
* Takes care of any text post-processing like calculating
* line metrics for alignment and wordwrapping if necessary.
*/
void Text::processText()
{
if (_font == 0)
{
return;
}
std::wstring *s = &_text;
// Use a separate string for wordwrapping text
if (_wrap)
{
_wrappedText = _text;
s = &_wrappedText;
}
_lineWidth.clear();
_lineHeight.clear();
int width = 0, word = 0;
std::wstring::iterator space = s->begin();
Font *font = _font;
// Go through the text character by character
for (std::wstring::iterator c = s->begin(); c <= s->end(); ++c)
{
// End of the line
if (c == s->end() || *c == L'\n' || *c == 2)
{
// Add line measurements for alignment later
_lineWidth.push_back(width);
_lineHeight.push_back(font->getHeight() + font->getSpacing());
width = 0;
word = 0;
if (c == s->end())
break;
// \x02 marks start of small text
else if (*c == 2)
font = _small;
}
// Keep track of spaces for wordwrapping
else if (*c == L' ')
{
space = c;
width += font->getWidth() / 2;
word = 0;
}
// Keep track of the width of the last line and word
else if (*c != 1)
{
width += font->getChar(*c)->getCrop()->w + font->getSpacing();
word += font->getChar(*c)->getCrop()->w + font->getSpacing();
// Wordwrap if the last word doesn't fit the line
if (_wrap && width > getWidth())
{
// Go back to the last space and put a linebreak there
*space = L'\n';
c = space - 1;
width -= word + font->getWidth() / 2;
}
}
}
draw();
}
/**
* Draws all the characters in the text with a really
* nasty complex gritty text rendering algorithm logic stuff.
*/
void Text::draw()
{
clear();
if (_text.empty() || _font == 0)
{
return;
}
int x = 0, y = 0, line = 0, height = 0;
Font *font = _font;
int color = _color;
std::wstring *s = &_text;
for (std::vector<int>::iterator i = _lineHeight.begin(); i != _lineHeight.end(); ++i)
{
height += *i;
}
switch (_valign)
{
case ALIGN_TOP:
y = 0;
break;
case ALIGN_MIDDLE:
y = (getHeight() - height) / 2;
break;
case ALIGN_BOTTOM:
y = getHeight() - height;
break;
}
switch (_align)
{
case ALIGN_LEFT:
x = 0;
break;
case ALIGN_CENTER:
x = (getWidth() - _lineWidth[line]) / 2;
break;
case ALIGN_RIGHT:
x = getWidth() - _lineWidth[line];
break;
}
if (_wrap)
{
s = &_wrappedText;
}
// Set up text color
int mul = 1;
if (_contrast)
{
mul = 3;
}
font->getSurface()->paletteShift(color, mul);
// Draw each letter one by one
for (std::wstring::iterator c = s->begin(); c != s->end(); ++c)
{
if (*c == ' ')
{
x += font->getWidth() / 2;
}
else if (*c == '\n' || *c == 2)
{
line++;
y += font->getHeight() + font->getSpacing();
switch (_align)
{
case ALIGN_LEFT:
x = 0;
break;
case ALIGN_CENTER:
x = (getWidth() - _lineWidth[line]) / 2;
break;
case ALIGN_RIGHT:
x = getWidth() - _lineWidth[line];
break;
}
if (*c == 2)
{
font->getSurface()->paletteRestore();
font = _small;
font->getSurface()->paletteShift(color, mul);
}
}
else if (*c == 1)
{
font->getSurface()->paletteRestore();
color = (color == _color ? _color2 : _color);
font->getSurface()->paletteShift(color, mul);
}
else
{
Surface* chr = font->getChar(*c);
chr->setX(x);
chr->setY(y);
chr->blit(this);
x += chr->getCrop()->w + font->getSpacing();
}
}
if (_invert)
{
this->invert(_color + 3);
}
// Revert text color
font->getSurface()->paletteRestore();
}
}