#include <config.h>
#include "Buffer.h"
+#include "BufferParams.h"
#include "BufferView.h"
#include "CoordCache.h"
#include "Cursor.h"
}
-bool Cursor::posBackward()
-{
- if (pos() == 0)
- return false;
- --pos();
- return true;
-}
-
-
-bool Cursor::posForward()
-{
- if (pos() == lastpos())
- return false;
- ++pos();
- return true;
-}
-
-
bool Cursor::posVisRight(bool skip_inset)
{
Cursor new_cur = *this; // where we will move to
right_pos = -1;
Row const & row = textRow();
- TextMetrics const & tm = bv_->textMetrics(text());
double dummy = 0;
- Row::const_iterator cit = tm.findRowElement(row, pos(), boundary(), dummy);
+ Row::const_iterator cit = row.findElement(pos(), boundary(), dummy);
// Handle the case of empty row
if (cit == row.end()) {
- if (paragraph().isRTL(buffer()->params()))
+ if (row.isRTL())
right_pos = row.pos();
else
left_pos = row.pos() - 1;
bool Cursor::posVisToNewRow(bool movingLeft)
{
- Paragraph const & par = paragraph();
- Buffer const & buf = *buffer();
Row const & row = textRow();
- bool par_is_LTR = !par.isRTL(buf.params());
+ bool par_is_LTR = !row.isRTL();
// Inside a table, determining whether to move to the next or
// previous row should be done based on the table's direction.
}
-bool Cursor::backspace()
+bool Cursor::backspace(bool const force)
{
if (selection()) {
cap::eraseSelection(*this);
}
}
- if (pos() != 0 && prevAtom()->nargs() > 0) {
+ if (pos() != 0 && !force && prevAtom()->confirmDeletion()) {
// let's require two backspaces for 'big stuff' and
// highlight on the first
resetAnchor();
}
-bool Cursor::erase()
+bool Cursor::erase(bool const force)
{
if (inMacroMode())
return true;
}
// 'clever' UI hack: only erase large items if previously slected
- if (pos() != lastpos() && nextAtom()->nargs() > 0) {
+ if (pos() != lastpos() && !force && nextAtom()->confirmDeletion()) {
resetAnchor();
selection(true);
++pos();
bool keep_mathmode = it != words.end() && (it->second.inset == "font"
|| it->second.inset == "oldfont"
|| it->second.inset == "mbox");
- bool ert_macro = !user_macro && it == words.end();
+ bool ert_macro = !user_macro && it == words.end() && atomAsMacro;
if (in && in->currentMode() == Inset::TEXT_MODE
&& atom.nucleus()->currentMode() == Inset::MATH_MODE
}
+InsetMath & Cursor::nextMath()
+{
+ return *nextAtom().nucleus();
+}
+
+
+InsetMath & Cursor::prevMath()
+{
+ return *prevAtom().nucleus();
+}
+
+
+bool Cursor::mathForward(bool word)
+{
+ LASSERT(inMathed(), return false);
+ if (pos() < lastpos()) {
+ if (word) {
+ // word: skip a group of insets of the form X*(B*|R*|P*) (greedy
+ // match) where X is any math class, B is mathbin, R is mathrel, and
+ // P is mathpunct. Make sure that the following remains true:
+ // mathForward(true); mathBackward(true); mathForward(true)
+ // is the same as mathForward(true) and
+ // mathBackward(true); mathForward(true); mathBackward(true)
+ // is the same as mathBackward(true).
+ MathClass mc = nextMath().mathClass();
+ do
+ posForward();
+ while (pos() < lastpos() && mc == nextMath().mathClass());
+ if (pos() < lastpos() &&
+ ((mc = nextMath().mathClass()) == MC_BIN ||
+ mc == MC_REL || mc == MC_PUNCT))
+ do
+ posForward();
+ while (pos() < lastpos() && mc == nextMath().mathClass());
+ } else if (openable(nextAtom())) {
+ // single step: try to enter the next inset
+ pushBackward(nextMath());
+ inset().idxFirst(*this);
+ } else
+ posForward();
+ return true;
+ }
+ if (inset().idxForward(*this))
+ return true;
+ // try to pop forwards --- but don't pop out of math! leave that to
+ // the FINISH lfuns
+ int s = depth() - 2;
+ if (s >= 0 && operator[](s).inset().asInsetMath())
+ return popForward();
+ return false;
+}
+
+
+bool Cursor::mathBackward(bool word)
+{
+ LASSERT(inMathed(), return false);
+ if (pos() > 0) {
+ if (word) {
+ // word: skip a group of insets. See the comment in mathForward.
+ MathClass mc = prevMath().mathClass();
+ do
+ posBackward();
+ while (pos() > 0 && mc == prevMath().mathClass());
+ if (pos() > 0 && (mc == MC_BIN || mc == MC_REL || mc == MC_PUNCT)) {
+ mc = prevMath().mathClass();
+ do
+ posBackward();
+ while (pos() > 0 && mc == prevMath().mathClass());
+ }
+ } else if (openable(prevAtom())) {
+ // single step: try to enter the preceding inset
+ posBackward();
+ push(nextMath());
+ inset().idxLast(*this);
+ } else
+ posBackward();
+ return true;
+ }
+ if (inset().idxBackward(*this))
+ return true;
+ // try to pop backwards --- but don't pop out of math! leave that to
+ // the FINISH lfuns
+ int s = depth() - 2;
+ if (s >= 0 && operator[](s).inset().asInsetMath())
+ return popBackward();
+ return false;
+}
+
+
bool Cursor::atFirstOrLastRow(bool up)
{
TextMetrics const & tm = bv_->textMetrics(text());
int yo = bv().getPos(*this).y_;
Cursor old = *this;
// To next/previous row
+ // FIXME: the y position is often guessed wrongly across styles and
+ // insets, which leads to weird behaviour.
if (up)
tm.editXY(*this, xo, yo - textRow().ascent() - 1);
else
tm.editXY(*this, xo, yo + textRow().descent() + 1);
+ x_target_ = old.x_target_;
clearSelection();
// This happens when you move out of an inset.
{
if (empty())
return 0;
+ BufferParams const & bp = bv().buffer().params();
+ if (bp.useNonTeXFonts)
+ return encodings.fromLyXName("utf8-plain");
+
CursorSlice const & sl = innerTextSlice();
Text const & text = *sl.text();
- Font font = text.getPar(sl.pit()).getFont(
- bv().buffer().params(), sl.pos(), text.outerFont(sl.pit()));
+ Font font = text.getPar(sl.pit()).getFont(bp, sl.pos(),
+ text.outerFont(sl.pit()));
return font.language()->encoding();
}
// The logic here should more or less match to the
// Cursor::setCurrentFont logic, i.e. the cursor height should
// give a hint what will happen if a character is entered.
+ // FIXME: this is not the case, what about removing this method ? (see #10478).
// HACK. far from being perfect...
{
setBuffer(&bv_->buffer());
DocIterator::sanitize();
+ new_word_.sanitize();
if (selection())
anchor_.sanitize();
else
}
+bool Cursor::confirmDeletion(bool const before) const
+{
+ if (!selection()) {
+ if (Inset const * inset = before ? prevInset() : nextInset())
+ return inset->confirmDeletion();
+ } else {
+ DocIterator dit = selectionBegin();
+ CursorSlice const end = selectionEnd().top();
+ for (; dit.top() < end; dit.top().forwardPos())
+ if (Inset const * inset = dit.nextInset())
+ if (inset->confirmDeletion())
+ return true;
+ }
+ return false;
+}
+
+
+void Cursor::moveToClosestEdge(int const x, bool const edit)
+{
+ if (Inset const * inset = nextInset()) {
+ // stay in front of insets for which we want to open the dialog
+ // (e.g. InsetMathSpace).
+ if (edit && (inset->hasSettings() || !inset->contextMenuName().empty()))
+ return;
+ CoordCache::Insets const & insetCache = bv().coordCache().getInsets();
+ if (!insetCache.has(inset))
+ return;
+ int const wid = insetCache.dim(inset).wid;
+ Point p = insetCache.xy(inset);
+ if (x > p.x_ + (wid + 1) / 2)
+ posForward();
+ }
+}
+
+
} // namespace lyx
projects / lyx.git / blobdiff