+ wxRichTextObject* childToUse = NULL;
+ wxRichTextObjectList::compatibility_iterator nodeToUse = wxRichTextObjectList::compatibility_iterator();
+
+ wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxRichTextObject* child = node->GetData();
+ if (child->GetRange().Contains(pos) && child->GetRange().GetLength() > 0)
+ {
+ childToUse = child;
+ nodeToUse = node;
+ break;
+ }
+
+ node = node->GetNext();
+ }
+
+ if (childToUse)
+ {
+ wxRichTextPlainText* textObject = wxDynamicCast(childToUse, wxRichTextPlainText);
+ if (textObject)
+ {
+ int posInString = pos - textObject->GetRange().GetStart();
+
+ wxString newText = textObject->GetText().Mid(0, posInString) +
+ text + textObject->GetText().Mid(posInString);
+ textObject->SetText(newText);
+
+ int textLength = text.length();
+
+ textObject->SetRange(wxRichTextRange(textObject->GetRange().GetStart(),
+ textObject->GetRange().GetEnd() + textLength));
+
+ // Increment the end range of subsequent fragments in this paragraph.
+ // We'll set the paragraph range itself at a higher level.
+
+ wxRichTextObjectList::compatibility_iterator node = nodeToUse->GetNext();
+ while (node)
+ {
+ wxRichTextObject* child = node->GetData();
+ child->SetRange(wxRichTextRange(textObject->GetRange().GetStart() + textLength,
+ textObject->GetRange().GetEnd() + textLength));
+
+ node = node->GetNext();
+ }
+
+ return true;
+ }
+ else
+ {
+ // TODO: if not a text object, insert at closest position, e.g. in front of it
+ }
+ }
+ else
+ {
+ // Add at end.
+ // Don't pass parent initially to suppress auto-setting of parent range.
+ // We'll do that at a higher level.
+ wxRichTextPlainText* textObject = new wxRichTextPlainText(text, this);
+
+ AppendChild(textObject);
+ return true;
+ }
+
+ return false;
+}
+
+void wxRichTextParagraph::Copy(const wxRichTextParagraph& obj)
+{
+ wxRichTextBox::Copy(obj);
+}
+
+/// Clear the cached lines
+void wxRichTextParagraph::ClearLines()
+{
+ WX_CLEAR_LIST(wxRichTextLineList, m_cachedLines);
+}
+
+/// Get/set the object size for the given range. Returns false if the range
+/// is invalid for this object.
+bool wxRichTextParagraph::GetRangeSize(const wxRichTextRange& range, wxSize& size, int& descent, wxDC& dc, int flags, wxPoint position) const
+{
+ if (!range.IsWithin(GetRange()))
+ return false;
+
+ if (flags & wxRICHTEXT_UNFORMATTED)
+ {
+ // Just use unformatted data, assume no line breaks
+ // TODO: take into account line breaks
+
+ wxSize sz;
+
+ wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxRichTextObject* child = node->GetData();
+ if (!child->GetRange().IsOutside(range))
+ {
+ wxSize childSize;
+
+ wxRichTextRange rangeToUse = range;
+ rangeToUse.LimitTo(child->GetRange());
+ int childDescent = 0;
+
+ if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y)))
+ {
+ sz.y = wxMax(sz.y, childSize.y);
+ sz.x += childSize.x;
+ descent = wxMax(descent, childDescent);
+ }
+ }
+
+ node = node->GetNext();
+ }
+ size = sz;
+ }
+ else
+ {
+ // Use formatted data, with line breaks
+ wxSize sz;
+
+ // We're going to loop through each line, and then for each line,
+ // call GetRangeSize for the fragment that comprises that line.
+ // Only we have to do that multiple times within the line, because
+ // the line may be broken into pieces. For now ignore line break commands
+ // (so we can assume that getting the unformatted size for a fragment
+ // within a line is the actual size)
+
+ wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
+ while (node)
+ {
+ wxRichTextLine* line = node->GetData();
+ wxRichTextRange lineRange = line->GetAbsoluteRange();
+ if (!lineRange.IsOutside(range))
+ {
+ wxSize lineSize;
+
+ wxRichTextObjectList::compatibility_iterator node2 = m_children.GetFirst();
+ while (node2)
+ {
+ wxRichTextObject* child = node2->GetData();
+
+ if (!child->GetRange().IsOutside(lineRange))
+ {
+ wxRichTextRange rangeToUse = lineRange;
+ rangeToUse.LimitTo(child->GetRange());
+
+ wxSize childSize;
+ int childDescent = 0;
+ if (child->GetRangeSize(rangeToUse, childSize, childDescent, dc, flags, wxPoint(position.x + sz.x, position.y)))
+ {
+ lineSize.y = wxMax(lineSize.y, childSize.y);
+ lineSize.x += childSize.x;
+ }
+ descent = wxMax(descent, childDescent);
+ }
+
+ node2 = node2->GetNext();
+ }
+
+ // Increase size by a line (TODO: paragraph spacing)
+ sz.y += lineSize.y;
+ sz.x = wxMax(sz.x, lineSize.x);
+ }
+ node = node->GetNext();
+ }
+ size = sz;
+ }
+ return true;
+}
+
+/// Finds the absolute position and row height for the given character position
+bool wxRichTextParagraph::FindPosition(wxDC& dc, long index, wxPoint& pt, int* height, bool forceLineStart)
+{
+ if (index == -1)
+ {
+ wxRichTextLine* line = ((wxRichTextParagraphLayoutBox*)GetParent())->GetLineAtPosition(0);
+ if (line)
+ *height = line->GetSize().y;
+ else
+ *height = dc.GetCharHeight();
+
+ // -1 means 'the start of the buffer'.
+ pt = GetPosition();
+ if (line)
+ pt = pt + line->GetPosition();
+
+ return true;
+ }
+
+ // The final position in a paragraph is taken to mean the position
+ // at the start of the next paragraph.
+ if (index == GetRange().GetEnd())
+ {
+ wxRichTextParagraphLayoutBox* parent = wxDynamicCast(GetParent(), wxRichTextParagraphLayoutBox);
+ wxASSERT( parent != NULL );
+
+ // Find the height at the next paragraph, if any
+ wxRichTextLine* line = parent->GetLineAtPosition(index + 1);
+ if (line)
+ {
+ *height = line->GetSize().y;
+ pt = line->GetAbsolutePosition();
+ }
+ else
+ {
+ *height = dc.GetCharHeight();
+ int indent = ConvertTenthsMMToPixels(dc, m_attributes.GetLeftIndent());
+ pt = wxPoint(indent, GetCachedSize().y);
+ }
+
+ return true;
+ }
+
+ if (index < GetRange().GetStart() || index > GetRange().GetEnd())
+ return false;
+
+ wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
+ while (node)
+ {
+ wxRichTextLine* line = node->GetData();
+ wxRichTextRange lineRange = line->GetAbsoluteRange();
+ if (index >= lineRange.GetStart() && index <= lineRange.GetEnd())
+ {
+ // If this is the last point in the line, and we're forcing the
+ // returned value to be the start of the next line, do the required
+ // thing.
+ if (index == lineRange.GetEnd() && forceLineStart)
+ {
+ if (node->GetNext())
+ {
+ wxRichTextLine* nextLine = node->GetNext()->GetData();
+ *height = nextLine->GetSize().y;
+ pt = nextLine->GetAbsolutePosition();
+ return true;
+ }
+ }
+
+ pt.y = line->GetPosition().y + GetPosition().y;
+
+ wxRichTextRange r(lineRange.GetStart(), index);
+ wxSize rangeSize;
+ int descent = 0;
+
+ // We find the size of the line up to this point,
+ // then we can add this size to the line start position and
+ // paragraph start position to find the actual position.
+
+ if (GetRangeSize(r, rangeSize, descent, dc, wxRICHTEXT_UNFORMATTED, line->GetPosition()+ GetPosition()))
+ {
+ pt.x = line->GetPosition().x + GetPosition().x + rangeSize.x;
+ *height = line->GetSize().y;
+
+ return true;
+ }
+
+ }
+
+ node = node->GetNext();
+ }
+
+ return false;
+}
+
+/// Hit-testing: returns a flag indicating hit test details, plus
+/// information about position
+int wxRichTextParagraph::HitTest(wxDC& dc, const wxPoint& pt, long& textPosition)
+{
+ wxPoint paraPos = GetPosition();
+
+ wxRichTextLineList::compatibility_iterator node = m_cachedLines.GetFirst();
+ while (node)
+ {
+ wxRichTextLine* line = node->GetData();
+ wxPoint linePos = paraPos + line->GetPosition();
+ wxSize lineSize = line->GetSize();
+ wxRichTextRange lineRange = line->GetAbsoluteRange();
+
+ if (pt.y <= linePos.y + lineSize.y)
+ {
+ if (pt.x < linePos.x)
+ {
+ textPosition = lineRange.GetStart();
+ return wxRICHTEXT_HITTEST_BEFORE|wxRICHTEXT_HITTEST_OUTSIDE;
+ }
+ else if (pt.x >= (linePos.x + lineSize.x))
+ {
+ textPosition = lineRange.GetEnd();
+ return wxRICHTEXT_HITTEST_AFTER|wxRICHTEXT_HITTEST_OUTSIDE;
+ }
+ else
+ {
+ long i;
+ int lastX = linePos.x;
+ for (i = lineRange.GetStart(); i <= lineRange.GetEnd(); i++)
+ {
+ wxSize childSize;
+ int descent = 0;
+
+ wxRichTextRange rangeToUse(lineRange.GetStart(), i);
+
+ GetRangeSize(rangeToUse, childSize, descent, dc, wxRICHTEXT_UNFORMATTED, linePos);
+
+ int nextX = childSize.x + linePos.x;
+
+ if (pt.x >= lastX && pt.x <= nextX)
+ {
+ textPosition = i;
+
+ // So now we know it's between i-1 and i.
+ // Let's see if we can be more precise about
+ // which side of the position it's on.
+
+ int midPoint = (nextX - lastX)/2 + lastX;
+ if (pt.x >= midPoint)
+ return wxRICHTEXT_HITTEST_AFTER;
+ else
+ return wxRICHTEXT_HITTEST_BEFORE;
+ }
+ else
+ {
+ lastX = nextX;
+ }
+ }
+ }
+ }
+
+ node = node->GetNext();
+ }
+
+ return wxRICHTEXT_HITTEST_NONE;
+}
+
+/// Split an object at this position if necessary, and return
+/// the previous object, or NULL if inserting at beginning.
+wxRichTextObject* wxRichTextParagraph::SplitAt(long pos, wxRichTextObject** previousObject)
+{
+ wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxRichTextObject* child = node->GetData();
+
+ if (pos == child->GetRange().GetStart())
+ {
+ if (previousObject)
+ {
+ if (node->GetPrevious())
+ *previousObject = node->GetPrevious()->GetData();
+ else
+ *previousObject = NULL;
+ }
+
+ return child;
+ }
+
+ if (child->GetRange().Contains(pos))
+ {
+ // This should create a new object, transferring part of
+ // the content to the old object and the rest to the new object.
+ wxRichTextObject* newObject = child->DoSplit(pos);
+
+ // If we couldn't split this object, just insert in front of it.
+ if (!newObject)
+ {
+ // Maybe this is an empty string, try the next one
+ // return child;
+ }
+ else
+ {
+ // Insert the new object after 'child'
+ if (node->GetNext())
+ m_children.Insert(node->GetNext(), newObject);
+ else
+ m_children.Append(newObject);
+ newObject->SetParent(this);
+
+ if (previousObject)
+ *previousObject = child;
+
+ return newObject;
+ }
+ }
+
+ node = node->GetNext();
+ }
+ if (previousObject)
+ *previousObject = NULL;
+ return NULL;
+}
+
+/// Move content to a list from obj on
+void wxRichTextParagraph::MoveToList(wxRichTextObject* obj, wxList& list)
+{
+ wxRichTextObjectList::compatibility_iterator node = m_children.Find(obj);
+ while (node)
+ {
+ wxRichTextObject* child = node->GetData();
+ list.Append(child);
+
+ wxRichTextObjectList::compatibility_iterator oldNode = node;
+
+ node = node->GetNext();
+
+ m_children.DeleteNode(oldNode);
+ }
+}
+
+/// Add content back from list
+void wxRichTextParagraph::MoveFromList(wxList& list)
+{
+ for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext())
+ {
+ AppendChild((wxRichTextObject*) node->GetData());
+ }
+}
+
+/// Calculate range
+void wxRichTextParagraph::CalculateRange(long start, long& end)
+{
+ wxRichTextCompositeObject::CalculateRange(start, end);
+
+ // Add one for end of paragraph
+ end ++;
+
+ m_range.SetRange(start, end);
+}
+
+/// Find the object at the given position
+wxRichTextObject* wxRichTextParagraph::FindObjectAtPosition(long position)
+{
+ wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
+ while (node)
+ {
+ wxRichTextObject* obj = node->GetData();
+ if (obj->GetRange().Contains(position))
+ return obj;
+
+ node = node->GetNext();
+ }
+ return NULL;
+}
+
+/// Get the plain text searching from the start or end of the range.
+/// The resulting string may be shorter than the range given.
+bool wxRichTextParagraph::GetContiguousPlainText(wxString& text, const wxRichTextRange& range, bool fromStart)
+{
+ text = wxEmptyString;
projects / wxWidgets.git / blobdiff