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* support/qstring_helpers.h: erase ucs4_to_qstring() method.

Browse Source 
* FontMetrics.h: only one string width() method.

* Painter.h: only one text() method.

* all other files: adapt to above API change.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17362 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Abdelrazak Younes 2007-02-26 15:13:08 +00:00
parent 85f66bcd90
commit ba62665f96
9 changed files with 26 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/frontends/FontMetrics.h
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@ -74,7 +74,7 @@ public:
/// return the right bearing of the char in the font
virtual int rbearing(char_type c) const = 0;
/// return the width of the string in the font
virtual int width(char_type const * s, size_t n) const = 0;
virtual int width(docstring const & s) const = 0;
/// FIXME ??
virtual int signedWidth(docstring const & s) const = 0;
/// return char dimension for the font.
@ -111,12 +111,6 @@ public:
inline int center(char_type c) const {
return (rbearing(c) - lbearing(c)) / 2;
}
/// return the width of the string in the font
inline int width(docstring const & s) const
{
return s.empty() ? 0 : width(s.data(), s.length());
}
};

6
src/frontends/NoGuiFontMetrics.h
View File

@ -45,13 +45,13 @@ public:
virtual int rbearing(char_type) const { return 1; }
virtual int width(char_type const *, size_t n) const { return n; }
virtual int width(docstring const & s) const { return s.size(); }
virtual int signedWidth(docstring const & s) const
{
if (s.size() && s[0] == '-')
return -FontMetrics::width(s.substr(1, s.length() - 1));
return FontMetrics::width(s);
return -width(s.substr(1, s.length() - 1));
return width(s);
}
virtual Dimension const dimension(char_type) const { return Dimension(1, 1, 1); }

8
src/frontends/Painter.h
View File

@ -135,14 +135,6 @@ public:
void setDrawingEnabled(bool drawing_enabled = true)
{ drawing_enabled_ = drawing_enabled; }
/**
* Draw a string at position x, y (y is the baseline)
* This is just for fast drawing
* \return the width of the drawn text.
*/
virtual int text(int x, int y,
char_type const * str, size_t l, LyXFont const & f) = 0;
/// draw a char at position x, y (y is the baseline)
/**
* \return the width of the drawn text.

23
src/frontends/qt4/GuiFontMetrics.C
View File

@ -82,21 +82,18 @@ int GuiFontMetrics::smallcapsWidth(QString const & s) const
}
int GuiFontMetrics::width(char_type const * s, size_t ls) const
int GuiFontMetrics::width(docstring const & s) const
{
// Caution: The following ucs4_to_something conversions work for
// symbol fonts only because they are no real conversions but simple
// casts in reality.
size_t ls = s.size();
if (ls == 0)
return 0;
if (ls == 1 && !smallcaps_shape_) {
return width(s[0]);
}
if (smallcaps_shape_) {
QString ucs2;
ucs4_to_qstring(s, ls, ucs2);
return smallcapsWidth(ucs2);
}
if (smallcaps_shape_)
return smallcapsWidth(toqstr(s));
int w = 0;
for (unsigned int i = 0; i < ls; ++i)
@ -130,9 +127,9 @@ int GuiFontMetrics::signedWidth(docstring const & s) const
return 0;
if (s[0] == '-')
return -width(&(s[1]), s.length() - 1);
return -width(s.substr(1, s.size() - 1));
else
return FontMetrics::width(s);
return width(s);
}
@ -140,7 +137,7 @@ void GuiFontMetrics::rectText(docstring const & str,
int & w, int & ascent, int & descent) const
{
static int const d = 2;
w = FontMetrics::width(str) + d * 2 + 2;
w = width(str) + d * 2 + 2;
ascent = metrics_.ascent() + d;
descent = metrics_.descent() + d;
}
@ -151,7 +148,7 @@ void GuiFontMetrics::buttonText(docstring const & str,
int & w, int & ascent, int & descent) const
{
static int const d = 3;
w = FontMetrics::width(str) + d * 2 + 2;
w = width(str) + d * 2 + 2;
ascent = metrics_.ascent() + d;
descent = metrics_.descent() + d;
}

2
src/frontends/qt4/GuiFontMetrics.h
View File

@ -40,7 +40,7 @@ public:
virtual int descent(char_type c) const;
virtual int lbearing(char_type c) const;
virtual int rbearing(char_type c) const;
virtual int width(char_type const * s, size_t n) const;
virtual int width(docstring const & s) const;
virtual int signedWidth(docstring const & s) const;
virtual Dimension const dimension(char_type c) const;

23
src/frontends/qt4/QLPainter.C
View File

@ -170,16 +170,10 @@ void QLPainter::image(int x, int y, int w, int h, graphics::Image const & i)
}
int QLPainter::text(int x, int y, docstring const & s, LyXFont const & f)
{
return text(x, y, reinterpret_cast<char_type const *>(s.data()), s.length(), f);
}
int QLPainter::text(int x, int y, char_type c, LyXFont const & f)
{
char_type s[2] = { c, char_type('\0') };
return text(x, y, s, 1, f);
docstring s(c, 1);
return text(x, y, s, f);
}
@ -210,15 +204,10 @@ int QLPainter::smallCapsText(int x, int y,
}
int QLPainter::text(int x, int y, char_type const * s, size_t ls,
LyXFont const & f)
int QLPainter::text(int x, int y, docstring const & s,
LyXFont const & f)
{
// Caution: The following ucs4_to_qstring conversion works for
// symbol fonts only because it is no real conversion but a simple
// cast in reality.
QString str;
ucs4_to_qstring(s, ls, str);
QString str = toqstr(s);
#if 0
// HACK: QT3 refuses to show single compose characters
@ -246,7 +235,7 @@ int QLPainter::text(int x, int y, char_type const * s, size_t ls,
// same as that of a soft-hyphen (0x00ad), unless it
// occurs at a line-break. As a kludge, we force Qt to
// render this glyph using a one-column line.
if (ls == 1 && str[0].unicode() == 0x00ad) {
if (s.size() == 1 && str[0].unicode() == 0x00ad) {
QTextLayout adsymbol(str);
adsymbol.setFont(fi.font);
adsymbol.beginLayout();

7
src/frontends/qt4/QLPainter.h
View File

@ -92,13 +92,6 @@ public:
virtual int text(int x, int y,
lyx::docstring const & str, LyXFont const & f);
/** Draw a string at position x, y (y is the baseline)
* This is just for fast drawing
*/
virtual int text(int x, int y,
lyx::char_type const * str, size_t l,
LyXFont const & f);
/// draw a char at position x, y (y is the baseline)
virtual int text(int x, int y,
lyx::char_type c, LyXFont const & f);

7
src/rowpainter.C
View File

@ -301,6 +301,7 @@ void RowPainter::paintArabicComposeChar(pos_type & vpos, LyXFont const & font)
pain_.text(int(x_) + dx, yo_, str, font);
}
void RowPainter::paintChars(pos_type & vpos, LyXFont const & font,
bool hebrew, bool arabic)
{
@ -346,6 +347,8 @@ void RowPainter::paintChars(pos_type & vpos, LyXFont const & font,
str.push_back(c);
}
docstring s(&str[0], str.size());
if (prev_change != Change::UNCHANGED) {
LyXFont copy(font);
if (prev_change == Change::DELETED) {
@ -353,9 +356,9 @@ void RowPainter::paintChars(pos_type & vpos, LyXFont const & font,
} else if (prev_change == Change::INSERTED) {
copy.setColor(LColor::newtext);
}
x_ += pain_.text(int(x_), yo_, &str[0], str.size(), copy);
x_ += pain_.text(int(x_), yo_, s, copy);
} else {
x_ += pain_.text(int(x_), yo_, &str[0], str.size(), font);
x_ += pain_.text(int(x_), yo_, s, font);
}
}

15
src/support/qstring_helpers.h
View File

@ -103,21 +103,6 @@ QString const toqstr(docstring const & ucs4);
#endif
/**
* ucs4_to_qstring - convert a UCS4 encoded char_type * into a QString
*
* This is a hack for the painter and font metrics and should not be used
* elsewhere. Since it uses ucs4_to_qchar it has the same limitations.
*/
inline void ucs4_to_qstring(char_type const * str, size_t ls, QString & s)
{
int i = static_cast<int>(ls);
s.resize(i);
for (; --i >= 0;)
s[i] = ucs4_to_qchar(str[i]);
}
/**
* qstring_to_ucs4 - convert a QString into a UCS4 encoded docstring
*