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Fixed several style, paste and undo bugs

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Added a reload function to the sample for quickly restoring original text


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@51739 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2008-02-12 17:05:32 +00:00
parent aab329d19f
commit af5f42f506
3 changed files with 169 additions and 130 deletions
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209
src/richtext/richtextbuffer.cpp
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@@ -1006,15 +1006,18 @@ wxRichTextRange wxRichTextParagraphLayoutBox::AddParagraphs(const wxString& text
wxChar ch = text[i];
if (ch == wxT('\n') || ch == wxT('\r'))
{
wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
plainText->SetText(line);
if (i != (len-1))
{
wxRichTextPlainText* plainText = (wxRichTextPlainText*) para->GetChildren().GetFirst()->GetData();
plainText->SetText(line);
para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
para = new wxRichTextParagraph(wxEmptyString, this, pStyle, cStyle);
AppendChild(para);
AppendChild(para);
lastPara = para;
line = wxEmptyString;
lastPara = para;
line = wxEmptyString;
}
}
else
line += ch;
@@ -1072,6 +1075,8 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
wxRichTextParagraph* para = GetParagraphAtPosition(position);
if (para)
{
wxTextAttrEx originalAttr = para->GetAttributes();
wxRichTextObjectList::compatibility_iterator node = m_children.Find(para);
// Now split at this position, returning the object to insert the new
@@ -1092,11 +1097,6 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
wxASSERT (firstPara != NULL);
// Apply the new paragraph attributes to the existing paragraph
wxTextAttrEx attr(para->GetAttributes());
wxRichTextApplyStyle(attr, firstPara->GetAttributes());
para->SetAttributes(attr);
wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
while (objectNode)
{
@@ -1144,13 +1144,27 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
wxRichTextParagraph* firstPara = wxDynamicCast(firstParaNode->GetData(), wxRichTextParagraph);
wxASSERT(firstPara != NULL);
para->SetAttributes(firstPara->GetAttributes());
// Save empty paragraph attributes for appending later
// These are character attributes deliberately set for a new paragraph. Without this,
// we couldn't pass default attributes when appending a new paragraph.
wxTextAttrEx emptyParagraphAttributes;
wxRichTextObjectList::compatibility_iterator objectNode = firstPara->GetChildren().GetFirst();
if (objectNode && firstPara->GetChildren().GetCount() == 1 && objectNode->GetData()->IsEmpty())
emptyParagraphAttributes = objectNode->GetData()->GetAttributes();
while (objectNode)
{
wxRichTextObject* newObj = objectNode->GetData()->Clone();
if (!objectNode->GetData()->IsEmpty())
{
wxRichTextObject* newObj = objectNode->GetData()->Clone();
// Append
para->AppendChild(newObj);
// Append
para->AppendChild(newObj);
}
objectNode = objectNode->GetNext();
}
@@ -1164,22 +1178,9 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
wxRichTextObjectList::compatibility_iterator i = fragment.GetChildren().GetFirst()->GetNext();
wxRichTextParagraph* finalPara = para;
// If there was only one paragraph, we need to insert a new one.
if (!i)
{
finalPara = new wxRichTextParagraph;
bool needExtraPara = (!i || !fragment.GetPartialParagraph());
// TODO: These attributes should come from the subsequent paragraph
// when originally deleted, since the subsequent para takes on
// the previous para's attributes.
finalPara->SetAttributes(firstPara->GetAttributes());
if (nextParagraph)
InsertChild(finalPara, nextParagraph);
else
AppendChild(finalPara);
}
else while (i)
while (i)
{
wxRichTextParagraph* para = wxDynamicCast(i->GetData(), wxRichTextParagraph);
wxASSERT( para != NULL );
@@ -1194,6 +1195,18 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
i = i->GetNext();
}
// If there was only one paragraph, or we have full paragraphs in our fragment,
// we need to insert a new one.
if (needExtraPara)
{
finalPara = new wxRichTextParagraph;
if (nextParagraph)
InsertChild(finalPara, nextParagraph);
else
AppendChild(finalPara);
}
// 4. Add back the remaining content.
if (finalPara)
{
@@ -1203,11 +1216,15 @@ bool wxRichTextParagraphLayoutBox::InsertFragment(long position, wxRichTextParag
if (finalPara->GetChildCount() == 0)
{
wxRichTextPlainText* text = new wxRichTextPlainText(wxEmptyString);
text->SetAttributes(emptyParagraphAttributes);
finalPara->AppendChild(text);
}
}
if (finalPara && finalPara != para)
finalPara->SetAttributes(originalAttr);
return true;
}
}
@@ -1391,6 +1408,7 @@ bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
{
wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
wxRichTextParagraph* firstPara = NULL;
while (node)
{
wxRichTextParagraph* obj = wxDynamicCast(node->GetData(), wxRichTextParagraph);
@@ -1402,61 +1420,78 @@ bool wxRichTextParagraphLayoutBox::DeleteRange(const wxRichTextRange& range)
if (!obj->GetRange().IsOutside(range))
{
wxRichTextRange thisRange = obj->GetRange();
// Deletes the content of this object within the given range
obj->DeleteRange(range);
// If the whole paragraph is within the range to delete,
// delete the whole thing.
if (range.GetStart() <= obj->GetRange().GetStart() && range.GetEnd() >= obj->GetRange().GetEnd())
if (range.GetStart() <= thisRange.GetStart() && range.GetEnd() >= thisRange.GetEnd())
{
// Delete the whole object
RemoveChild(obj, true);
obj = NULL;
}
else if (!firstPara)
firstPara = obj;
// If the range includes the paragraph end, we need to join this
// and the next paragraph.
else if (range.Contains(obj->GetRange().GetEnd()))
if (range.GetEnd() <= thisRange.GetEnd())
{
// We need to move the objects from the next paragraph
// to this paragraph
if (next)
wxRichTextParagraph* nextParagraph = NULL;
if ((range.GetEnd() < thisRange.GetEnd()) && obj)
nextParagraph = obj;
else
{
wxRichTextParagraph* nextParagraph = wxDynamicCast(next->GetData(), wxRichTextParagraph);
next = next->GetNext();
if (nextParagraph)
{
// Delete the stuff we need to delete
nextParagraph->DeleteRange(range);
// Move the objects to the previous para
wxRichTextObjectList::compatibility_iterator node1 = nextParagraph->GetChildren().GetFirst();
while (node1)
{
wxRichTextObject* obj1 = node1->GetData();
// If the object is empty, optimise it out
if (obj1->IsEmpty())
{
delete obj1;
}
else
{
obj->AppendChild(obj1);
}
wxRichTextObjectList::compatibility_iterator next1 = node1->GetNext();
nextParagraph->GetChildren().Erase(node1);
node1 = next1;
}
// Delete the paragraph
RemoveChild(nextParagraph, true);
}
// We're ending at the end of the paragraph, so merge the _next_ paragraph.
if (next)
nextParagraph = wxDynamicCast(next->GetData(), wxRichTextParagraph);
}
bool applyFinalParagraphStyle = firstPara && nextParagraph && nextParagraph != firstPara;
wxTextAttrEx nextParaAttr;
if (applyFinalParagraphStyle)
nextParaAttr = nextParagraph->GetAttributes();
if (firstPara && nextParagraph && firstPara != nextParagraph)
{
// Move the objects to the previous para
wxRichTextObjectList::compatibility_iterator node1 = nextParagraph->GetChildren().GetFirst();
while (node1)
{
wxRichTextObject* obj1 = node1->GetData();
// If the object is empty, optimise it out
if (obj1->IsEmpty())
{
delete obj1;
}
else
{
firstPara->AppendChild(obj1);
}
wxRichTextObjectList::compatibility_iterator next1 = node1->GetNext();
nextParagraph->GetChildren().Erase(node1);
node1 = next1;
}
// Delete the paragraph
RemoveChild(nextParagraph, true);
}
if (applyFinalParagraphStyle)
firstPara->SetAttributes(nextParaAttr);
return true;
}
}
@@ -4729,6 +4764,7 @@ bool wxRichTextPlainText::Merge(wxRichTextObject* object)
if (textObject)
{
m_text += textObject->GetText();
wxRichTextApplyStyle(m_attributes, textObject->GetAttributes());
return true;
}
else
@@ -4861,21 +4897,14 @@ bool wxRichTextBuffer::InsertParagraphsWithUndo(long pos, const wxRichTextParagr
action->GetNewParagraphs() = paragraphs;
if (p)
{
wxRichTextObjectList::compatibility_iterator node = m_children.GetLast();
while (node)
{
wxRichTextParagraph* obj = (wxRichTextParagraph*) node->GetData();
obj->SetAttributes(*p);
node = node->GetPrevious();
}
}
action->SetPosition(pos);
wxRichTextRange range = wxRichTextRange(pos, pos + paragraphs.GetRange().GetEnd() - 1);
if (!paragraphs.GetPartialParagraph())
range.SetEnd(range.GetEnd()+1);
// Set the range we'll need to delete in Undo
action->SetRange(wxRichTextRange(pos, pos + paragraphs.GetRange().GetEnd() - 1));
action->SetRange(range);
SubmitAction(action);
@@ -4945,6 +4974,10 @@ bool wxRichTextBuffer::InsertNewlineWithUndo(long pos, wxRichTextCtrl* ctrl, int
if (p)
newPara->SetAttributes(*p);
// Use the default character style
if (!GetDefaultStyle().IsDefault() && newPara->GetChildren().GetFirst())
newPara->GetChildren().GetFirst()->GetData()->SetAttributes(GetDefaultStyle());
// Set the range we'll need to delete in Undo
action->SetRange(wxRichTextRange(pos, pos));
@@ -5065,26 +5098,6 @@ bool wxRichTextBuffer::DeleteRangeWithUndo(const wxRichTextRange& range, wxRichT
// Copy the fragment that we'll need to restore in Undo
CopyFragment(range, action->GetOldParagraphs());
// Special case: if there is only one (non-partial) paragraph,
// we must save the *next* paragraph's style, because that
// is the style we must apply when inserting the content back
// when undoing the delete. (This is because we're merging the
// paragraph with the previous paragraph and throwing away
// the style, and we need to restore it.)
if (!action->GetOldParagraphs().GetPartialParagraph() && action->GetOldParagraphs().GetChildCount() == 1)
{
wxRichTextParagraph* lastPara = GetParagraphAtPosition(range.GetStart());
if (lastPara)
{
wxRichTextParagraph* nextPara = GetParagraphAtPosition(range.GetEnd()+1);
if (nextPara)
{
wxRichTextParagraph* para = (wxRichTextParagraph*) action->GetOldParagraphs().GetChild(0);
para->SetAttributes(nextPara->GetAttributes());
}
}
}
SubmitAction(action);
return true;