+// Processes the back key
+bool wxRichTextCtrl::ProcessBackKey(wxKeyEvent& event, int flags)
+{
+ if (!IsEditable())
+ {
+ return false;
+ }
+
+ if (HasSelection() && !CanDeleteRange(* GetFocusObject(), GetSelectionRange()))
+ {
+ return false;
+ }
+
+ wxRichTextParagraph* para = GetFocusObject()->GetParagraphAtPosition(m_caretPosition, true);
+
+ // If we're at the start of a list item with a bullet, let's 'delete' the bullet, i.e.
+ // make it a continuation paragraph.
+ if (!HasSelection() && para && ((m_caretPosition+1) == para->GetRange().GetStart()) &&
+ para->GetAttributes().HasBulletStyle() && (para->GetAttributes().GetBulletStyle() & wxTEXT_ATTR_BULLET_STYLE_CONTINUATION) == 0)
+ {
+ wxRichTextParagraph* newPara = wxDynamicCast(para->Clone(), wxRichTextParagraph);
+ newPara->GetAttributes().SetBulletStyle(newPara->GetAttributes().GetBulletStyle() | wxTEXT_ATTR_BULLET_STYLE_CONTINUATION);
+
+ wxRichTextAction* action = new wxRichTextAction(NULL, _("Remove Bullet"), wxRICHTEXT_CHANGE_STYLE, & GetBuffer(), GetFocusObject(), this);
+ action->SetRange(newPara->GetRange());
+ action->SetPosition(GetCaretPosition());
+ action->GetNewParagraphs().AppendChild(newPara);
+ // Also store the old ones for Undo
+ action->GetOldParagraphs().AppendChild(new wxRichTextParagraph(*para));
+
+ GetBuffer().Invalidate(para->GetRange());
+ GetBuffer().SubmitAction(action);
+
+ // Automatically renumber list
+ bool isNumberedList = false;
+ wxRichTextRange numberedListRange = FindRangeForList(m_caretPosition, isNumberedList);
+ if (isNumberedList && numberedListRange != wxRichTextRange(-1, -1))
+ {
+ NumberList(numberedListRange, NULL, wxRICHTEXT_SETSTYLE_RENUMBER|wxRICHTEXT_SETSTYLE_WITH_UNDO);
+ }
+
+ Update();
+ }
+ else
+ {
+ BeginBatchUndo(_("Delete Text"));
+
+ long newPos = m_caretPosition;
+
+ bool processed = DeleteSelectedContent(& newPos);
+
+ int deletions = 0;
+ if (processed)
+ deletions ++;
+
+ // Submit range in character positions, which are greater than caret positions,
+ // so subtract 1 for deleted character and add 1 for conversion to character position.
+ if (newPos > -1)
+ {
+ if (event.CmdDown())
+ {
+ long pos = wxRichTextCtrl::FindNextWordPosition(-1);
+ if (pos < newPos)
+ {
+ wxRichTextRange range(pos+1, newPos);
+ if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+ {
+ GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+ deletions ++;
+ }
+ processed = true;
+ }
+ }
+
+ if (!processed)
+ {
+ wxRichTextRange range(newPos, newPos);
+ if (CanDeleteRange(* GetFocusObject(), range.FromInternal()))
+ {
+ GetFocusObject()->DeleteRangeWithUndo(range, this, & GetBuffer());
+ deletions ++;
+ }
+ }
+ }
+
+ EndBatchUndo();
+
+ if (GetLastPosition() == -1)
+ {
+ GetFocusObject()->Reset();
+
+ m_caretPosition = -1;
+ PositionCaret();
+ SetDefaultStyleToCursorStyle();
+ }
+
+ ScrollIntoView(m_caretPosition, WXK_LEFT);
+
+ // Always send this event; wxEVT_RICHTEXT_CONTENT_DELETED will be sent only if there is an actual deletion.
+ {
+ wxRichTextEvent cmdEvent(
+ wxEVT_RICHTEXT_DELETE,
+ GetId());
+ cmdEvent.SetEventObject(this);
+ cmdEvent.SetFlags(flags);
+ cmdEvent.SetPosition(m_caretPosition+1);
+ cmdEvent.SetContainer(GetFocusObject());
+ GetEventHandler()->ProcessEvent(cmdEvent);
+ }
+
+ Update();
+ }
+
+ return true;
+}
+
projects / wxWidgets.git / blobdiff