Initial commit
This commit is contained in:
633
graphics/font.cpp
Normal file
633
graphics/font.cpp
Normal file
@@ -0,0 +1,633 @@
|
||||
/* ScummVM - Graphic Adventure Engine
|
||||
*
|
||||
* ScummVM is the legal property of its developers, whose names
|
||||
* are too numerous to list here. Please refer to the COPYRIGHT
|
||||
* file distributed with this source distribution.
|
||||
*
|
||||
* This program 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.
|
||||
*
|
||||
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "graphics/font.h"
|
||||
#include "graphics/managed_surface.h"
|
||||
|
||||
#include "common/array.h"
|
||||
#include "common/util.h"
|
||||
|
||||
namespace Graphics {
|
||||
|
||||
int Font::getFontAscent() const {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int Font::getFontDescent() const {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int Font::getFontLeading() const {
|
||||
return -1;
|
||||
}
|
||||
|
||||
int Font::getKerningOffset(uint32 left, uint32 right) const {
|
||||
return 0;
|
||||
}
|
||||
|
||||
Common::Rect Font::getBoundingBox(uint32 chr) const {
|
||||
return Common::Rect(getCharWidth(chr), getFontHeight());
|
||||
}
|
||||
|
||||
namespace {
|
||||
|
||||
template<class StringType>
|
||||
Common::Rect getBoundingBoxImpl(const Font &font, const StringType &str, int x, int y, int w, TextAlign align, int deltax) {
|
||||
// We follow the logic of drawStringImpl here. The only exception is
|
||||
// that we do allow an empty width to be specified here. This allows us
|
||||
// to obtain the complete bounding box of a string.
|
||||
const int leftX = x, rightX = w ? (x + w + 1) : 0x7FFFFFFF;
|
||||
int width = font.getStringWidth(str);
|
||||
|
||||
if (align == kTextAlignCenter)
|
||||
x = x + (w - width)/2;
|
||||
else if (align == kTextAlignRight)
|
||||
x = x + w - width;
|
||||
x += deltax;
|
||||
|
||||
bool first = true;
|
||||
Common::Rect bbox;
|
||||
|
||||
typename StringType::unsigned_type last = 0;
|
||||
for (typename StringType::const_iterator i = str.begin(), end = str.end(); i != end; ++i) {
|
||||
const typename StringType::unsigned_type cur = *i;
|
||||
x += font.getKerningOffset(last, cur);
|
||||
last = cur;
|
||||
|
||||
Common::Rect charBox = font.getBoundingBox(cur);
|
||||
if (x + charBox.right > rightX)
|
||||
break;
|
||||
if (x + charBox.right >= leftX) {
|
||||
charBox.translate(x, y);
|
||||
if (first) {
|
||||
bbox = charBox;
|
||||
first = false;
|
||||
} else {
|
||||
bbox.extend(charBox);
|
||||
}
|
||||
}
|
||||
|
||||
x += font.getCharWidth(cur);
|
||||
}
|
||||
|
||||
return bbox;
|
||||
}
|
||||
|
||||
template<class StringType>
|
||||
int getStringWidthImpl(const Font &font, const StringType &str) {
|
||||
int space = 0;
|
||||
typename StringType::unsigned_type last = 0;
|
||||
|
||||
for (uint i = 0; i < str.size(); ++i) {
|
||||
const typename StringType::unsigned_type cur = str[i];
|
||||
space += font.getCharWidth(cur) + font.getKerningOffset(last, cur);
|
||||
last = cur;
|
||||
}
|
||||
|
||||
return space;
|
||||
}
|
||||
|
||||
template<class SurfaceType, class StringType>
|
||||
void drawStringImpl(const Font &font, SurfaceType *dst, const StringType &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool alpha) {
|
||||
// The logic in getBoundingImpl is the same as we use here. In case we
|
||||
// ever change something here we will need to change it there too.
|
||||
assert(dst != 0);
|
||||
|
||||
const int leftX = x, rightX = x + w + 1;
|
||||
int width = font.getStringWidth(str);
|
||||
|
||||
if (align == kTextAlignCenter)
|
||||
x = x + (w - width)/2;
|
||||
else if (align == kTextAlignRight)
|
||||
x = x + w - width;
|
||||
x += deltax;
|
||||
|
||||
typename StringType::unsigned_type last = 0;
|
||||
for (typename StringType::const_iterator i = str.begin(), end = str.end(); i != end; ++i) {
|
||||
const typename StringType::unsigned_type cur = *i;
|
||||
x += font.getKerningOffset(last, cur);
|
||||
last = cur;
|
||||
|
||||
Common::Rect charBox = font.getBoundingBox(cur);
|
||||
if (x + charBox.right > rightX)
|
||||
break;
|
||||
if (x + charBox.right >= leftX) {
|
||||
if (alpha)
|
||||
font.drawAlphaChar(dst, cur, x, y, color);
|
||||
else
|
||||
font.drawChar(dst, cur, x, y, color);
|
||||
}
|
||||
|
||||
x += font.getCharWidth(cur);
|
||||
}
|
||||
}
|
||||
|
||||
template<class StringType>
|
||||
struct WordWrapper {
|
||||
Common::Array<StringType> &lines;
|
||||
Common::Array<bool> &lineContinuation;
|
||||
int actualMaxLineWidth;
|
||||
|
||||
WordWrapper(Common::Array<StringType> &l, Common::Array<bool> &lC) : lines(l), lineContinuation(lC), actualMaxLineWidth(0) {
|
||||
}
|
||||
|
||||
void add(StringType &line, bool &wordContinuation, int &w) {
|
||||
if (actualMaxLineWidth < w)
|
||||
actualMaxLineWidth = w;
|
||||
|
||||
lines.push_back(line);
|
||||
lineContinuation.push_back(wordContinuation);
|
||||
|
||||
line.clear();
|
||||
wordContinuation = false;
|
||||
w = 0;
|
||||
}
|
||||
|
||||
void clear() {
|
||||
lines.clear();
|
||||
lineContinuation.clear();
|
||||
actualMaxLineWidth = 0;
|
||||
}
|
||||
};
|
||||
|
||||
template<class StringType>
|
||||
int wordWrapTextImpl(const Font &font, const StringType &str, int maxWidth, Common::Array<StringType> &lines, Common::Array<bool> &lineContinuation, int initWidth, uint32 mode) {
|
||||
WordWrapper<StringType> wrapper(lines, lineContinuation);
|
||||
StringType line;
|
||||
StringType tmpStr;
|
||||
bool wordContinuation = false;
|
||||
int lineWidth = initWidth;
|
||||
int tmpWidth = 0;
|
||||
int fullTextWidthEWL = initWidth; // this replaces new line characters (if any) with single spaces - it is used in Even Width Lines mode
|
||||
|
||||
// The rough idea behind this algorithm is as follows:
|
||||
// We accumulate characters into the string tmpStr. Whenever a full word
|
||||
// has been gathered together this way, we 'commit' it to the line buffer
|
||||
// 'line', i.e. we add tmpStr to the end of line, then clear it. Before
|
||||
// we do that, we check whether it would cause 'line' to exceed maxWidth;
|
||||
// in that case, we first add line to lines, then reset it.
|
||||
//
|
||||
// If a newline character is read, then we also add line to lines and clear it.
|
||||
//
|
||||
// Special care has to be taken to account for 'words' that exceed the width
|
||||
// of a line. If we encounter such a word, we have to wrap it over multiple
|
||||
// lines.
|
||||
|
||||
typename StringType::unsigned_type last = 0;
|
||||
|
||||
// When EvenWidthLines mode is enabled then we require an early loop over the entire string
|
||||
// in order to get the full width of the text
|
||||
//
|
||||
// If both "Wrap On Explicit New Lines" and "Even Width Lines" modes are set,
|
||||
// and there are new line characters in the text,
|
||||
// then "Wrap On Explicit New Lines" takes precedence and "Even Width Lines" is ignored for that text.
|
||||
// However, if both are set, but there are no new lines in the text,
|
||||
// then the "Even Width Lines" auto-wrapping is applied.
|
||||
//
|
||||
if (mode & kWordWrapEvenWidthLines) {
|
||||
// Early loop to get the full width of the text
|
||||
for (typename StringType::const_iterator x = str.begin(); x != str.end(); ++x) {
|
||||
typename StringType::unsigned_type c = *x;
|
||||
|
||||
// Check for Windows and Mac line breaks
|
||||
if (c == '\r') {
|
||||
if (x != str.end() && *(x + 1) == '\n') {
|
||||
++x;
|
||||
}
|
||||
c = '\n';
|
||||
}
|
||||
|
||||
if (c == '\n') {
|
||||
if (!(mode & kWordWrapOnExplicitNewLines)) {
|
||||
c = ' ';
|
||||
} else {
|
||||
mode &= ~kWordWrapEvenWidthLines;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
const int w = font.getCharWidth(c) + font.getKerningOffset(last, c);
|
||||
last = c;
|
||||
fullTextWidthEWL += w;
|
||||
}
|
||||
}
|
||||
|
||||
int targetTotalLinesNumberEWL = 0;
|
||||
int targetMaxLineWidth = 0;
|
||||
do {
|
||||
if (mode & kWordWrapEvenWidthLines) {
|
||||
wrapper.clear();
|
||||
targetTotalLinesNumberEWL += 1;
|
||||
// We add +2 to the fullTextWidthEWL to account for possible shadow pixels
|
||||
// We add +10 * font.getCharWidth(' ') to the quotient since we want to allow some extra margin (about an extra wprd's length)
|
||||
// since that yields better looking results
|
||||
targetMaxLineWidth = ((fullTextWidthEWL + 2) / targetTotalLinesNumberEWL) + 10 * font.getCharWidth(' ');
|
||||
if (targetMaxLineWidth > maxWidth) {
|
||||
// repeat the loop with increased targetTotalLinesNumberEWL
|
||||
continue;
|
||||
}
|
||||
} else {
|
||||
targetMaxLineWidth = maxWidth;
|
||||
}
|
||||
|
||||
last = 0;
|
||||
tmpWidth = 0;
|
||||
|
||||
for (typename StringType::const_iterator x = str.begin(); x != str.end(); ++x) {
|
||||
typename StringType::unsigned_type c = *x;
|
||||
|
||||
// Convert Windows and Mac line breaks into plain \n
|
||||
if (c == '\r') {
|
||||
if (x != str.end() && *(x + 1) == '\n') {
|
||||
++x;
|
||||
}
|
||||
c = '\n';
|
||||
}
|
||||
// if wrapping on explicit new lines is disabled, then new line characters should be treated as a single white space char
|
||||
if (!(mode & kWordWrapOnExplicitNewLines) && c == '\n') {
|
||||
c = ' ';
|
||||
}
|
||||
|
||||
const int currentCharWidth = font.getCharWidth(c);
|
||||
const int w = currentCharWidth + font.getKerningOffset(last, c);
|
||||
last = c;
|
||||
const bool wouldExceedWidth =
|
||||
(lineWidth + tmpWidth + w > targetMaxLineWidth) &&
|
||||
!(mode & kWordWrapAllowTrailingWhitespace && Common::isSpace(c));
|
||||
|
||||
// If this char is a whitespace, then it represents a potential
|
||||
// 'wrap point' where wrapping could take place. Everything that
|
||||
// came before it can now safely be added to the line, as we know
|
||||
// that it will not have to be wrapped.
|
||||
if (Common::isSpace(c)) {
|
||||
line += tmpStr;
|
||||
lineWidth += tmpWidth;
|
||||
|
||||
tmpStr.clear();
|
||||
tmpWidth = 0;
|
||||
|
||||
// If we encounter a line break (\n), or if the new space would
|
||||
// cause the line to overflow: start a new line
|
||||
if (((mode & kWordWrapOnExplicitNewLines) && c == '\n') || wouldExceedWidth) {
|
||||
wrapper.add(line, wordContinuation, lineWidth);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// If the max line width would be exceeded by adding this char,
|
||||
// insert a line break.
|
||||
if (wouldExceedWidth) {
|
||||
// Commit what we have so far, *if* we have anything.
|
||||
// If line is empty, then we are looking at a word
|
||||
// which exceeds the maximum line width.
|
||||
if (lineWidth > 0) {
|
||||
wrapper.add(line, wordContinuation, lineWidth);
|
||||
// Trim left side
|
||||
while (tmpStr.size() && Common::isSpace(tmpStr[0])) {
|
||||
tmpStr.deleteChar(0);
|
||||
// This is not very fast, but it is the simplest way to
|
||||
// assure we do not mess something up because of kerning.
|
||||
tmpWidth = font.getStringWidth(tmpStr);
|
||||
}
|
||||
|
||||
if (tmpStr.empty()) {
|
||||
// If tmpStr is empty, we might have removed the space before 'c'.
|
||||
// That means we have to recompute the kerning.
|
||||
|
||||
tmpWidth += currentCharWidth + font.getKerningOffset(0, c);
|
||||
tmpStr += c;
|
||||
continue;
|
||||
}
|
||||
} else {
|
||||
wordContinuation = true;
|
||||
wrapper.add(tmpStr, wordContinuation, tmpWidth);
|
||||
}
|
||||
}
|
||||
|
||||
tmpWidth += w;
|
||||
tmpStr += c;
|
||||
}
|
||||
|
||||
// If some text is left over, add it as the final line
|
||||
line += tmpStr;
|
||||
lineWidth += tmpWidth;
|
||||
if (lineWidth > 0) {
|
||||
wrapper.add(line, wordContinuation, lineWidth);
|
||||
}
|
||||
} while ((mode & kWordWrapEvenWidthLines)
|
||||
&& (targetMaxLineWidth > maxWidth));
|
||||
return wrapper.actualMaxLineWidth;
|
||||
}
|
||||
|
||||
template<typename StringType>
|
||||
StringType handleEllipsis(const Font &font, const StringType &input, int w) {
|
||||
StringType s = input;
|
||||
int width = font.getStringWidth(s);
|
||||
bool hasEllipsisAtEnd = false;
|
||||
|
||||
if (s.size() > 3 && s[s.size() - 1] == '.' && s[s.size() - 2] == '.' && s[s.size() - 3] == '.') {
|
||||
hasEllipsisAtEnd = true;
|
||||
}
|
||||
|
||||
if (width > w && hasEllipsisAtEnd) {
|
||||
// String is too wide. Check whether it ends in an ellipsis
|
||||
// ("..."). If so, remove that and try again!
|
||||
s.deleteLastChar();
|
||||
s.deleteLastChar();
|
||||
s.deleteLastChar();
|
||||
width = font.getStringWidth(s);
|
||||
}
|
||||
|
||||
if (width > w) {
|
||||
StringType str;
|
||||
StringType ellipsis("...");
|
||||
|
||||
// String is too wide. So we shorten it "intelligently" by
|
||||
// replacing parts of the string by an ellipsis. There are
|
||||
// three possibilities for this: replace the start, the end, or
|
||||
// the middle of the string. What is best really depends on the
|
||||
// context; but unless we want to make this configurable,
|
||||
// replacing the middle seems to be a good compromise.
|
||||
|
||||
const int ellipsisWidth = font.getStringWidth(ellipsis);
|
||||
|
||||
// SLOW algorithm to remove enough of the middle. But it is good enough
|
||||
// for now.
|
||||
const int halfWidth = (w - ellipsisWidth) / 2;
|
||||
int w2 = 0;
|
||||
typename StringType::unsigned_type last = 0;
|
||||
uint i = 0;
|
||||
|
||||
for (; i < s.size(); ++i) {
|
||||
const typename StringType::unsigned_type cur = s[i];
|
||||
int charWidth = font.getCharWidth(cur) + font.getKerningOffset(last, cur);
|
||||
if (w2 + charWidth > halfWidth)
|
||||
break;
|
||||
last = cur;
|
||||
w2 += charWidth;
|
||||
str += cur;
|
||||
}
|
||||
|
||||
// At this point we know that the first 'i' chars are together 'w2'
|
||||
// pixels wide. We took the first i-1, and add "..." to them.
|
||||
str += ellipsis;
|
||||
last = '.';
|
||||
|
||||
// The original string is width wide. Of those we already skipped past
|
||||
// w2 pixels, which means (width - w2) remain.
|
||||
// The new str is (w2+ellipsisWidth) wide, so we can accommodate about
|
||||
// (w - (w2+ellipsisWidth)) more pixels.
|
||||
// Thus we skip ((width - w2) - (w - (w2+ellipsisWidth))) =
|
||||
// (width + ellipsisWidth - w)
|
||||
int skip = width + ellipsisWidth - w;
|
||||
for (; i < s.size() && skip > 0; ++i) {
|
||||
const typename StringType::unsigned_type cur = s[i];
|
||||
skip -= font.getCharWidth(cur) + font.getKerningOffset(last, cur);
|
||||
last = cur;
|
||||
}
|
||||
|
||||
// Append the remaining chars, if any
|
||||
for (; i < s.size(); ++i) {
|
||||
str += s[i];
|
||||
}
|
||||
|
||||
return str;
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
} // End of anonymous namespace
|
||||
|
||||
Common::Rect Font::getBoundingBox(const Common::String &input, int x, int y, const int w, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
// In case no width was given we cannot use ellipsis or any alignment
|
||||
// apart from left alignment.
|
||||
if (w == 0) {
|
||||
if (useEllipsis) {
|
||||
warning("Font::getBoundingBox: Requested ellipsis when no width was specified");
|
||||
}
|
||||
|
||||
if (align != kTextAlignLeft) {
|
||||
warning("Font::getBoundingBox: Requested text alignment when no width was specified");
|
||||
}
|
||||
|
||||
useEllipsis = false;
|
||||
align = kTextAlignLeft;
|
||||
}
|
||||
|
||||
const Common::String str = useEllipsis ? handleEllipsis(*this, input, w) : input;
|
||||
return getBoundingBoxImpl(*this, str, x, y, w, align, deltax);
|
||||
}
|
||||
|
||||
Common::Rect Font::getBoundingBox(const Common::U32String &input, int x, int y, const int w, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
// In case no width was given we cannot any alignment apart from left
|
||||
// alignment.
|
||||
if (w == 0) {
|
||||
if (useEllipsis) {
|
||||
warning("Font::getBoundingBox: Requested ellipsis when no width was specified");
|
||||
}
|
||||
|
||||
if (align != kTextAlignLeft) {
|
||||
warning("Font::getBoundingBox: Requested text alignment when no width was specified");
|
||||
}
|
||||
|
||||
useEllipsis = false;
|
||||
align = kTextAlignLeft;
|
||||
}
|
||||
|
||||
const Common::U32String str = useEllipsis ? handleEllipsis(*this, input, w) : input;
|
||||
return getBoundingBoxImpl(*this, str, x, y, w, align, 0);
|
||||
}
|
||||
|
||||
int Font::getStringWidth(const Common::String &str) const {
|
||||
return getStringWidthImpl(*this, str);
|
||||
}
|
||||
|
||||
int Font::getStringWidth(const Common::U32String &str) const {
|
||||
return getStringWidthImpl(*this, str);
|
||||
}
|
||||
|
||||
void Font::drawChar(ManagedSurface *dst, uint32 chr, int x, int y, uint32 color) const {
|
||||
drawChar(dst->surfacePtr(), chr, x, y, color);
|
||||
|
||||
Common::Rect charBox = getBoundingBox(chr);
|
||||
charBox.translate(x, y);
|
||||
dst->addDirtyRect(charBox);
|
||||
}
|
||||
|
||||
void Font::drawAlphaChar(Surface *dst, uint32 chr, int x, int y, uint32 color) const {
|
||||
// Generic implementation for 1bpp fonts. Fonts with alpha blending
|
||||
// should override this function.
|
||||
|
||||
uint32 aMask = (0xFF >> dst->format.aLoss) << dst->format.aShift;
|
||||
|
||||
Common::Rect charBox = getBoundingBox(chr);
|
||||
charBox.translate(x, y);
|
||||
dst->fillRect(charBox, color & ~aMask);
|
||||
|
||||
drawChar(dst, chr, x, y, color | aMask);
|
||||
}
|
||||
|
||||
void Font::drawAlphaChar(ManagedSurface *dst, uint32 chr, int x, int y, uint32 color) const {
|
||||
drawAlphaChar(dst->surfacePtr(), chr, x, y, color);
|
||||
|
||||
Common::Rect charBox = getBoundingBox(chr);
|
||||
charBox.translate(x, y);
|
||||
dst->addDirtyRect(charBox);
|
||||
}
|
||||
|
||||
void Font::drawString(Surface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, false);
|
||||
}
|
||||
|
||||
void Font::drawString(Surface *dst, const Common::U32String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::U32String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, false);
|
||||
}
|
||||
|
||||
void Font::drawString(ManagedSurface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, false);
|
||||
|
||||
if (w != 0) {
|
||||
dst->addDirtyRect(getBoundingBox(str, x, y, w, align, deltax, useEllipsis));
|
||||
}
|
||||
}
|
||||
|
||||
void Font::drawString(ManagedSurface *dst, const Common::U32String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::U32String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, false);
|
||||
|
||||
if (w != 0) {
|
||||
dst->addDirtyRect(getBoundingBox(str, x, y, w, align, useEllipsis));
|
||||
}
|
||||
}
|
||||
|
||||
void Font::drawAlphaString(Surface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, true);
|
||||
}
|
||||
|
||||
void Font::drawAlphaString(Surface *dst, const Common::U32String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::U32String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, true);
|
||||
}
|
||||
|
||||
void Font::drawAlphaString(ManagedSurface *dst, const Common::String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, true);
|
||||
|
||||
if (w != 0) {
|
||||
dst->addDirtyRect(getBoundingBox(str, x, y, w, align, deltax, useEllipsis));
|
||||
}
|
||||
}
|
||||
|
||||
void Font::drawAlphaString(ManagedSurface *dst, const Common::U32String &str, int x, int y, int w, uint32 color, TextAlign align, int deltax, bool useEllipsis) const {
|
||||
Common::U32String renderStr = useEllipsis ? handleEllipsis(*this, str, w) : str;
|
||||
drawStringImpl(*this, dst, renderStr, x, y, w, color, align, deltax, true);
|
||||
|
||||
if (w != 0) {
|
||||
dst->addDirtyRect(getBoundingBox(str, x, y, w, align, useEllipsis));
|
||||
}
|
||||
}
|
||||
|
||||
int Font::wordWrapText(const Common::String &str, int maxWidth, Common::Array<Common::String> &lines, int initWidth, uint32 mode) const {
|
||||
Common::Array<bool> dummyLineContinuation;
|
||||
return wordWrapTextImpl(*this, str, maxWidth, lines, dummyLineContinuation, initWidth, mode);
|
||||
}
|
||||
|
||||
int Font::wordWrapText(const Common::U32String &str, int maxWidth, Common::Array<Common::U32String> &lines, int initWidth, uint32 mode) const {
|
||||
Common::Array<bool> dummyLineContinuation;
|
||||
return wordWrapTextImpl(*this, str, maxWidth, lines, dummyLineContinuation, initWidth, mode);
|
||||
}
|
||||
|
||||
int Font::wordWrapText(const Common::U32String &str, int maxWidth, Common::Array<Common::U32String> &lines, Common::Array<bool> &lineContinuation, int initWidth, uint32 mode) const {
|
||||
return wordWrapTextImpl(*this, str, maxWidth, lines, lineContinuation, initWidth, mode);
|
||||
}
|
||||
|
||||
TextAlign convertTextAlignH(TextAlign alignH, bool rtl) {
|
||||
switch (alignH) {
|
||||
case kTextAlignStart:
|
||||
return rtl ? kTextAlignRight : kTextAlignLeft;
|
||||
case kTextAlignEnd:
|
||||
return rtl ? kTextAlignLeft : kTextAlignRight;
|
||||
default:
|
||||
return alignH;
|
||||
}
|
||||
}
|
||||
|
||||
#define wholedivide(x, y) (((x)+((y)-1))/(y))
|
||||
|
||||
static void countupScore(int *dstGray, int x, int y, int bbw, int bbh, float scale) {
|
||||
int newbbw = bbw * scale;
|
||||
int newbbh = bbh * scale;
|
||||
int x_ = x * newbbw;
|
||||
int y_ = y * newbbh;
|
||||
int x1 = x_ + newbbw;
|
||||
int y1 = y_ + newbbh;
|
||||
|
||||
int newxbegin = x_ / bbw;
|
||||
int newybegin = y_ / bbh;
|
||||
int newxend = wholedivide(x1, bbw);
|
||||
int newyend = wholedivide(y1, bbh);
|
||||
|
||||
for (int newy = newybegin; newy < newyend; newy++) {
|
||||
for (int newx = newxbegin; newx < newxend; newx++) {
|
||||
int newX = newx * bbw;
|
||||
int newY = newy * bbh;
|
||||
int newX1 = newX + bbw;
|
||||
int newY1 = newY + bbh;
|
||||
dstGray[newy * newbbw + newx] += (MIN(x1, newX1) - MAX(x_, newX)) *
|
||||
(MIN(y1, newY1) - MAX(y_, newY));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void magnifyGray(Surface *src, int *dstGray, int width, int height, float scale) {
|
||||
for (uint16 y = 0; y < height; y++) {
|
||||
for (uint16 x = 0; x < width; x++) {
|
||||
if (*((byte *)src->getBasePtr(x, y)) == 1)
|
||||
countupScore(dstGray, x, y, width, height, scale);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void Font::scaleSingleGlyph(Surface *scaleSurface, int *grayScaleMap, int grayScaleMapSize, int width, int height, int xOffset, int yOffset, int grayLevel, int chr, int srcheight, int srcwidth, float scale) const {
|
||||
|
||||
scaleSurface->fillRect(Common::Rect(scaleSurface->w, scaleSurface->h), 0);
|
||||
drawChar(scaleSurface, chr, xOffset, yOffset, 1);
|
||||
memset(grayScaleMap, 0, grayScaleMapSize * sizeof(int));
|
||||
magnifyGray(scaleSurface, grayScaleMap, srcwidth, srcheight, scale);
|
||||
int *grayPtr = grayScaleMap;
|
||||
for (int y = 0; y < height; y++) {
|
||||
byte *dst = (byte *)scaleSurface->getBasePtr(0, y);
|
||||
for (int x = 0; x < width; x++, grayPtr++, dst++) {
|
||||
if (*grayPtr > grayLevel)
|
||||
*dst = 1;
|
||||
else
|
||||
*dst = 0;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
} // End of namespace Graphics
|
||||
Reference in New Issue
Block a user