2001-06-25 00:06:33 +00:00
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#include <config.h>
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#ifdef __GNUG__
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#pragma implementation
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#endif
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2001-10-12 12:02:49 +00:00
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#include "math_scriptinset.h"
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2001-11-08 12:15:12 +00:00
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#include "math_support.h"
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2001-06-25 00:06:33 +00:00
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#include "Painter.h"
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2001-08-06 17:20:26 +00:00
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#include "debug.h"
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2001-06-25 00:06:33 +00:00
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2001-07-12 07:18:29 +00:00
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2001-11-09 08:35:57 +00:00
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extern MathScriptInset const * asScript(MathArray::const_iterator it);
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2001-06-25 00:06:33 +00:00
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MathXArray::MathXArray()
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2001-10-19 17:46:13 +00:00
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: width_(0), ascent_(0), descent_(0), xo_(0), yo_(0), size_()
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2001-06-25 00:06:33 +00:00
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{}
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2001-11-13 12:51:43 +00:00
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void MathXArray::metrics(MathMetricsInfo const & mi) const
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2001-06-25 00:06:33 +00:00
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{
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2001-11-13 12:51:43 +00:00
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size_ = mi;
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mathed_char_dim(LM_TC_VAR, mi, 'I', ascent_, descent_, width_);
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2001-09-03 08:55:56 +00:00
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if (data_.empty())
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2001-06-25 00:06:33 +00:00
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return;
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2001-09-03 11:38:04 +00:00
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2001-11-13 12:51:43 +00:00
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math_font_max_dim(LM_TC_TEXTRM, mi, ascent_, descent_);
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2001-10-19 17:46:13 +00:00
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width_ = 0;
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2001-06-25 00:06:33 +00:00
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2001-08-06 17:20:26 +00:00
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//lyxerr << "MathXArray::metrics(): '" << data_ << "'\n";
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2001-10-12 12:02:49 +00:00
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for (const_iterator it = begin(); it != end(); ++it) {
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MathInset const * p = it->nucleus();
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2001-11-09 08:35:57 +00:00
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MathScriptInset const * q = (it + 1 == end()) ? 0 : asScript(it);
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if (q) {
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2001-11-13 12:51:43 +00:00
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q->metrics(p, mi);
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2001-10-12 12:02:49 +00:00
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ascent_ = std::max(ascent_, q->ascent(p));
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descent_ = std::max(descent_, q->descent(p));
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width_ += q->width(p);
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++it;
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} else {
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2001-11-13 12:51:43 +00:00
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p->metrics(mi);
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2001-10-12 12:02:49 +00:00
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ascent_ = std::max(ascent_, p->ascent());
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descent_ = std::max(descent_, p->descent());
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width_ += p->width();
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}
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2001-06-25 00:06:33 +00:00
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}
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2001-09-11 14:15:30 +00:00
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//lyxerr << "MathXArray::metrics(): '" << ascent_ << " "
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// << descent_ << " " << width_ << "'\n";
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2001-06-25 00:06:33 +00:00
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}
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2001-08-06 17:20:26 +00:00
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void MathXArray::draw(Painter & pain, int x, int y) const
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2001-06-25 00:06:33 +00:00
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{
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xo_ = x;
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yo_ = y;
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if (data_.empty()) {
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pain.rectangle(x, y - ascent_, width_, height(), LColor::mathline);
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return;
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}
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2001-10-12 12:02:49 +00:00
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for (const_iterator it = begin(); it != end(); ++it) {
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MathInset const * p = it->nucleus();
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2001-11-09 08:35:57 +00:00
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MathScriptInset const * q = (it + 1 == end()) ? 0 : asScript(it);
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if (q) {
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2001-10-12 12:02:49 +00:00
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q->draw(p, pain, x, y);
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x += q->width(p);
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++it;
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} else {
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p->draw(pain, x, y);
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x += p->width();
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}
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2001-06-25 00:06:33 +00:00
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}
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}
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2001-10-12 12:02:49 +00:00
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int MathXArray::pos2x(size_type targetpos) const
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2001-06-25 00:06:33 +00:00
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{
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int x = 0;
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2001-10-12 12:02:49 +00:00
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const_iterator target = std::min(begin() + targetpos, end());
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for (const_iterator it = begin(); it < target; ++it) {
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MathInset const * p = it->nucleus();
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2001-11-09 08:35:57 +00:00
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MathScriptInset const * q = (it + 1 == end()) ? 0 : asScript(it);
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if (q) {
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2001-10-12 12:02:49 +00:00
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++it;
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if (it < target)
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x += q->width(p);
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else // "half" position
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x += q->dxx(p) + q->nwid(p);
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} else
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x += p->width();
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}
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2001-06-25 00:06:33 +00:00
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return x;
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}
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2001-09-14 14:05:57 +00:00
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MathArray::size_type MathXArray::x2pos(int targetx) const
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2001-06-25 00:06:33 +00:00
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{
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2001-10-12 12:02:49 +00:00
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const_iterator it = begin();
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int lastx = 0;
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int currx = 0;
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for ( ; currx < targetx && it < end(); ++it) {
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2001-07-24 16:39:55 +00:00
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lastx = currx;
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2001-06-25 00:06:33 +00:00
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2001-10-12 12:02:49 +00:00
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int wid = 0;
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MathInset const * p = it->nucleus();
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2001-11-09 08:35:57 +00:00
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MathScriptInset const * q = 0;
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if (it + 1 != end())
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q = asScript(it);
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if (q) {
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2001-10-12 12:02:49 +00:00
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wid = q->width(p);
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++it;
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} else
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wid = p->width();
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2001-08-03 17:10:22 +00:00
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2001-10-12 12:02:49 +00:00
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currx += wid;
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}
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if (abs(lastx - targetx) < abs(currx - targetx) && it != begin())
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--it;
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return it - begin();
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2001-10-10 13:20:51 +00:00
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}
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