Implement inset-split (only for text insets for now) (#10260)

[features.git] / src / Text.cpp

diff --git a/src/Text.cpp b/src/Text.cpp
index d227bd5cd5af108f1072a0d0ec168aa058219edf..1f8288a71dbe985a8c05a263d2e74098835fe2b1 100644 (file)
--- a/src/Text.cpp
+++ b/src/Text.cpp
@@ -33,6 +33,7 @@
 #include "ErrorList.h"
 #include "factory.h"
 #include "Font.h"
+#include "FuncRequest.h"
 #include "Language.h"
 #include "Layout.h"
 #include "Lexer.h"
@@ -1898,6 +1899,80 @@ bool Text::dissolveInset(Cursor & cur)
 }
 
 
+bool Text::splitInset(Cursor & cur)
+{
+       LASSERT(this == cur.text(), return false);
+
+       if (isMainText() || cur.inset().nargs() != 1)
+               return false;
+
+       cur.recordUndo();
+       if (cur.selection()) {
+               // start from selection begin
+               setCursor(cur, cur.selBegin().pit(), cur.selBegin().pos());
+               cur.clearSelection();
+       }
+       // save split position inside inset
+       // (we need to copy the whole inset first)
+       pos_type spos = cur.pos();
+       pit_type spit = cur.pit();
+       // some things only need to be done if the inset has content
+       bool const inset_non_empty = cur.lastpit() != 0 || cur.lastpos() != 0;
+
+       // move right before the inset
+       cur.popBackward();
+       cur.resetAnchor();
+       // remember position outside inset
+       pos_type ipos = cur.pos();
+       pit_type ipit = cur.pit();
+       // select inset ...
+       ++cur.pos();
+       cur.setSelection();
+       // ... and copy
+       cap::copySelectionToTemp(cur);
+       cur.clearSelection();
+       cur.resetAnchor();
+       // paste copied inset
+       cap::pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
+       cur.forceBufferUpdate();
+
+       // if the inset has text, cut after split position
+       // and paste to new inset
+       if (inset_non_empty) {
+               // go back to first inset
+               cur.text()->setCursor(cur, ipit, ipos);
+               cur.forwardPos();
+               setCursor(cur, spit, spos);
+               cur.resetAnchor();
+               setCursor(cur, cur.lastpit(), getPar(cur.lastpit()).size());
+               cur.setSelection();
+               cap::cutSelectionToTemp(cur);
+               cur.setMark(false);
+               cur.selHandle(false);
+               cur.resetAnchor();
+               Cursor dummy = cur;
+               dummy.pos() = dummy.pit() = 0;
+               if (cur.bv().checkDepm(dummy, cur))
+                       cur.forceBufferUpdate();
+               // Move out of and jump over inset
+               cur.popBackward();
+               ++cur.pos();
+
+               // enter new inset
+               cur.forwardPos();
+               cur.setCursor(cur);
+               cur.resetAnchor();
+               cur.text()->selectAll(cur);
+               cutSelection(cur, false);
+               cap::pasteFromTemp(cur, cur.buffer()->errorList("Paste"));
+               cur.text()->setCursor(cur, 0, 0);
+       }
+
+       cur.finishUndo();
+       return true;
+}
+
+
 void Text::getWord(CursorSlice & from, CursorSlice & to,
        word_location const loc) const
 {