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almost only ws changes

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6916 a592a061-630c-0410-9148-cb99ea01b6c8
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Lars Gullik Bjønnes 2003-05-01 23:24:30 +00:00
parent 96885e74d7
commit cd50f3ae85
3 changed files with 64 additions and 54 deletions
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2
src/ChangeLog
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@ -1,5 +1,7 @@
2003-05-02 Lars Gullik Bjønnes <larsbj@gullik.net>
* undo_funcs.C: almost only ws changes.
* ParagraphList.C (splice): just return if pl is empty.
2003-05-02 Lars Gullik Bjønnes <larsbj@gullik.net>

114
src/undo_funcs.C
View File

@ -26,14 +26,14 @@ using std::vector;
using boost::shared_ptr;
/// the flag used by FinishUndo();
/// The flag used by FinishUndo().
bool undo_finished;
/// whether actions are not added to the undo stacks
/// Whether actions are not added to the undo stacks.
bool undo_frozen;
namespace {
/// utility to return the cursor
/// Utility to return the cursor.
LyXCursor const & undoCursor(BufferView * bv)
{
if (bv->theLockingInset())
@ -41,10 +41,11 @@ LyXCursor const & undoCursor(BufferView * bv)
return bv->text->cursor;
}
/**
* returns a pointer to the very first Paragraph depending of where we are
* so it will return the first paragraph of the buffer or the first paragraph
* of the textinset we're in.
* Returns a pointer to the very first Paragraph depending of where
* we are so it will return the first paragraph of the buffer or the
* first paragraph of the textinset we're in.
*/
Paragraph * firstUndoParagraph(BufferView * bv, int inset_id)
{
@ -72,7 +73,7 @@ void finishNoUndo(BufferView * bv)
}
// returns false if no undo possible
// Returns false if no undo possible.
bool textHandleUndo(BufferView * bv, Undo & undo)
{
Buffer * b = bv->buffer();
@ -80,8 +81,8 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
Paragraph * const before = &*b->getParFromID(undo.number_of_before_par);
Paragraph * const behind = &*b->getParFromID(undo.number_of_behind_par);
// if there's no before take the beginning
// of the document for redoing
// If there's no before take the beginning
// of the document for redoing.
if (!before) {
LyXText * t = bv->text;
int num = undo.number_of_inset_id;
@ -96,16 +97,18 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
t->setCursorIntern(firstUndoParagraph(bv, num), 0);
}
// replace the paragraphs with the undo informations
// Replace the paragraphs with the undo informations.
Paragraph * undopar = undo.par;
undo.par = 0; /* otherwise the undo destructor would
delete the paragraph */
// Otherwise the undo destructor would
// delete the paragraph.
undo.par = 0;
// get last undo par and set the right(new) inset-owner of the
// paragraph if there is any. This is not needed if we don't have
// a paragraph before because then in is automatically done in the
// function which assigns the first paragraph to an InsetText. (Jug)
// Get last undo par and set the right(new) inset-owner of the
// paragraph if there is any. This is not needed if we don't
// have a paragraph before because then in is automatically
// done in the function which assigns the first paragraph to
// an InsetText. (Jug)
Paragraph * lastundopar = undopar;
if (lastundopar) {
Inset * in = 0;
@ -122,7 +125,7 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
vector<Paragraph *> deletelist;
// now add old paragraphs to be deleted
// Now add old paragraphs to be deleted.
if (before != behind || (!behind && !before)) {
Paragraph * deletepar;
if (before)
@ -135,7 +138,7 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
Paragraph * tmppar = deletepar;
deletepar = deletepar->next();
// a memory optimization for edit:
// A memory optimization for edit:
// Only layout information
// is stored in the undo. So restore
// the text informations.
@ -150,14 +153,14 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
// next/prev pointer in the paragraphs so that a rebuild of
// the LyXText works!!!
// thread the end of the undo onto the par in front if any
// Thread the end of the undo onto the par in front if any.
if (lastundopar) {
lastundopar->next(behind);
if (behind)
behind->previous(lastundopar);
}
// put the new stuff in the list if there is one
// Put the new stuff in the list if there is one.
if (undopar) {
undopar->previous(before);
if (before)
@ -172,9 +175,9 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
}
}
} else {
// We enter here on DELETE undo operations where we have to
// substitue the second paragraph with the first if the removed
// one is the first!
// We enter here on DELETE undo operations where we
// have to substitue the second paragraph with the
// first if the removed one is the first.
if (!before && behind) {
int id = firstUndoParagraph(bv, undo.number_of_inset_id)->id();
Paragraph * op = &*bv->buffer()->getParFromID(id);
@ -189,14 +192,16 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
}
// Set the cursor for redoing
if (before) { // if we have a par before the undopar
// Set the cursor for redoing.
// If we have a par before the undopar.
if (before) {
Inset * it = before->inInset();
if (it)
it->getLyXText(bv)->setCursorIntern(before, 0);
else
bv->text->setCursorIntern(before, 0);
}
// we are not ready for this we cannot set the cursor for a paragraph
// which is not already in a row of LyXText!!!
#if 0
@ -210,7 +215,8 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
#endif
Paragraph * endpar = 0;
// calculate the endpar for redoing the paragraphs.
// Calculate the endpar for redoing the paragraphs.
if (behind)
endpar = behind->next();
@ -233,8 +239,8 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
t = bv->text;
}
t->setCursorIntern(tmppar, undo.cursor_pos);
// clear any selection and set the selection cursor
// for an evt. new selection.
// Clear any selection and set the selection
// cursor for an evt. new selection.
t->clearSelection();
t->selection.cursor = t->cursor;
t->updateCounters();
@ -257,23 +263,21 @@ bool textHandleUndo(BufferView * bv, Undo & undo)
t = bv->text;
}
t->setCursorIntern(tmppar, undo.cursor_pos);
// clear any selection and set the selection cursor
// for an evt. new selection.
// Clear any selection and set the selection
// cursor for an evt. new selection.
t->clearSelection();
t->selection.cursor = t->cursor;
t->updateCounters();
}
}
// And here it's safe enough to delete all removed paragraphs
// And here it's safe enough to delete all removed paragraphs.
vector<Paragraph *>::iterator pit = deletelist.begin();
if (pit != deletelist.end()) {
for(;pit != deletelist.end(); ++pit) {
(*pit)->previous(0);
(*pit)->next(0);
delete (*pit);
}
}
for(; pit != deletelist.end(); ++pit) {
(*pit)->previous(0);
(*pit)->next(0);
delete (*pit);
}
finishUndo();
bv->text->postPaint(0);
@ -310,18 +314,18 @@ bool createUndo(BufferView * bv, Undo::undo_kind kind,
// EDIT is special since only layout information, not the
// contents of a paragaph are stored.
if (!undo_finished && (kind != Undo::EDIT) && (kind != Undo::FINISH)) {
// check whether storing is needed
// Check whether storing is needed.
if (!b->undostack.empty() &&
b->undostack.top()->kind == kind &&
b->undostack.top()->number_of_before_par == before_number &&
b->undostack.top()->number_of_behind_par == behind_number) {
// no undo needed
// No undo needed.
return false;
}
}
// create a new Undo
Paragraph * undopar = 0; // nothing to replace (undo of delete maybe)
// Create a new Undo.
Paragraph * undopar = 0;
Paragraph * start = first;
Paragraph * end = 0;
@ -340,8 +344,8 @@ bool createUndo(BufferView * bv, Undo::undo_kind kind,
Paragraph * tmppar = start;
Paragraph * tmppar2 = new Paragraph(*tmppar, true);
// a memory optimization: Just store the layout information
// when only edit
// A memory optimization: Just store the layout
// information when only edit.
if (kind == Undo::EDIT) {
tmppar2->clearContents();
}
@ -375,7 +379,7 @@ bool createUndo(BufferView * bv, Undo::undo_kind kind,
}
// returns false if no undo possible
// Returns false if no undo possible.
bool textUndoOrRedo(BufferView * bv,
limited_stack<boost::shared_ptr<Undo> > & stack,
limited_stack<boost::shared_ptr<Undo> > & otherstack)
@ -405,9 +409,10 @@ bool textUndoOrRedo(BufferView * bv,
}
}
// now we can unlock the inset for saftey because the inset pointer could
// be changed during the undo-function. Anyway if needed we have to lock
// the right inset/position if this is requested.
// Now we can unlock the inset for saftey because the inset
// pointer could be changed during the undo-function. Anyway
// if needed we have to lock the right inset/position if this
// is requested.
freezeUndo();
bv->unlockInset(bv->theLockingInset());
bool const ret = textHandleUndo(bv, *undo.get());
@ -417,36 +422,39 @@ bool textUndoOrRedo(BufferView * bv,
} // namespace anon
void finishUndo()
{
// makes sure the next operation will be stored
// Makes sure the next operation will be stored.
undo_finished = true;
}
void freezeUndo()
{
// this is dangerous and for internal use only
// This is dangerous and for internal use only.
undo_frozen = true;
}
void unFreezeUndo()
{
// this is dangerous and for internal use only
// This is dangerous and for internal use only.
undo_frozen = false;
}
bool textUndo(BufferView * bv)
{
return textUndoOrRedo(bv, bv->buffer()->undostack, bv->buffer()->redostack);
return textUndoOrRedo(bv, bv->buffer()->undostack,
bv->buffer()->redostack);
}
bool textRedo(BufferView * bv)
{
return textUndoOrRedo(bv, bv->buffer()->redostack, bv->buffer()->undostack);
return textUndoOrRedo(bv, bv->buffer()->redostack,
bv->buffer()->undostack);
}