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Introduced invalidation of ranges for later optimization code

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35954 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2005-10-19 22:20:12 +00:00
parent 7fe8059f58
commit 3811368401
3 changed files with 77 additions and 21 deletions
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72
src/richtext/richtextbuffer.cpp
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@@ -425,13 +425,13 @@ bool wxRichTextBox::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichTex
}
/// Lay the item out
bool wxRichTextBox::Layout(wxDC& dc, const wxRect& rect, const wxRichTextRange& affected, int style)
bool wxRichTextBox::Layout(wxDC& dc, const wxRect& rect, int style)
{
wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
while (node)
{
wxRichTextObject* child = node->GetData();
child->Layout(dc, rect, affected, style);
child->Layout(dc, rect, style);
node = node->GetNext();
}
@@ -480,6 +480,7 @@ void wxRichTextParagraphLayoutBox::Init()
// For now, assume is the only box and has no initial size.
m_range = wxRichTextRange(0, -1);
m_invalidRange.SetRange(-1, -1);
m_leftMargin = 4;
m_rightMargin = 4;
m_topMargin = 4;
@@ -513,7 +514,7 @@ bool wxRichTextParagraphLayoutBox::Draw(wxDC& dc, const wxRichTextRange& range,
}
/// Lay the item out
bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, const wxRichTextRange& affected, int style)
bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, int style)
{
wxRect availableSpace(rect.x + m_leftMargin,
rect.y + m_topMargin,
@@ -523,11 +524,18 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, const wx
int maxWidth = 0;
wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst();
bool layoutAll = true;
// Get invalid range, rounding to paragraph start/end.
wxRichTextRange invalidRange = GetInvalidRange(true);
// If we know what range is affected, start laying out from that point on.
if (affected.GetStart() > GetRange().GetStart())
if (invalidRange == wxRichTextRange(-1, -1))
layoutAll = true;
else // If we know what range is affected, start laying out from that point on.
if (invalidRange.GetStart() > GetRange().GetStart())
{
wxRichTextParagraph* firstParagraph = GetParagraphAtPosition(affected.GetStart());
wxRichTextParagraph* firstParagraph = GetParagraphAtPosition(invalidRange.GetStart());
if (firstParagraph)
{
wxRichTextObjectList::compatibility_iterator firstNode = m_children.Find(firstParagraph);
@@ -550,9 +558,9 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, const wx
wxRichTextParagraph* child = wxDynamicCast(node->GetData(), wxRichTextParagraph);
wxASSERT (child != NULL);
if (child && !child->GetRange().IsOutside(affected))
if (child && (layoutAll || !child->GetRange().IsOutside(invalidRange)))
{
child->Layout(dc, availableSpace, affected, style);
child->Layout(dc, availableSpace, style);
// Layout must set the cached size
availableSpace.y += child->GetCachedSize().y;
@@ -573,7 +581,7 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, const wx
if (child)
{
if (child->GetLines().GetCount() == 0)
child->Layout(dc, availableSpace, affected, style);
child->Layout(dc, availableSpace, style);
else
child->SetPosition(wxPoint(child->GetPosition().x, child->GetPosition().y + inc));
@@ -592,6 +600,7 @@ bool wxRichTextParagraphLayoutBox::Layout(wxDC& dc, const wxRect& rect, const wx
SetCachedSize(wxSize(maxWidth, availableSpace.y));
m_dirty = false;
m_invalidRange = wxRichTextRange(-1, -1);
return true;
}
@@ -1721,6 +1730,43 @@ void wxRichTextParagraphLayoutBox::Reset()
AddParagraph(wxEmptyString);
}
/// Invalidate the buffer. With no argument, invalidates whole buffer.
void wxRichTextParagraphLayoutBox::Invalidate(const wxRichTextRange& invalidRange)
{
SetDirty(true);
if (invalidRange == wxRichTextRange(-1, -1))
{
m_invalidRange = invalidRange;
return;
}
if (invalidRange.GetStart() < m_invalidRange.GetStart())
m_invalidRange.SetStart(invalidRange.GetStart());
if (invalidRange.GetEnd() > m_invalidRange.GetEnd())
m_invalidRange.SetEnd(invalidRange.GetEnd());
}
/// Get invalid range, rounding to entire paragraphs if argument is true.
wxRichTextRange wxRichTextParagraphLayoutBox::GetInvalidRange(bool wholeParagraphs) const
{
if (m_invalidRange == wxRichTextRange(-1, -1))
return m_invalidRange;
wxRichTextRange range = m_invalidRange;
if (wholeParagraphs)
{
wxRichTextParagraph* para1 = GetParagraphAtPosition(range.GetStart());
wxRichTextParagraph* para2 = GetParagraphAtPosition(range.GetEnd());
if (para1)
range.SetStart(para1->GetRange().GetStart());
if (para2)
range.SetEnd(para2->GetRange().GetEnd());
}
return range;
}
/*!
* wxRichTextFragment class declaration
* This is a lind of paragraph layout box used for storing
@@ -1883,7 +1929,7 @@ bool wxRichTextParagraph::Draw(wxDC& dc, const wxRichTextRange& WXUNUSED(range),
}
/// Lay the item out
bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, const wxRichTextRange& affected, int style)
bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, int style)
{
ClearLines();
@@ -1955,7 +2001,7 @@ bool wxRichTextParagraph::Layout(wxDC& dc, const wxRect& rect, const wxRichTextR
// can't tell the position until the size is determined. So possibly introduce
// another layout phase.
child->Layout(dc, rect, affected, style);
child->Layout(dc, rect, style);
// Available width depends on whether we're on the first or subsequent lines
int availableSpaceForText = (lineCount == 0 ? availableTextSpaceFirstLine : availableTextSpaceSubsequentLines);
@@ -2879,7 +2925,7 @@ bool wxRichTextPlainText::Draw(wxDC& dc, const wxRichTextRange& range, const wxR
}
/// Lay the item out
bool wxRichTextPlainText::Layout(wxDC& dc, const wxRect& WXUNUSED(rect), const wxRichTextRange& WXUNUSED(affected), int WXUNUSED(style))
bool wxRichTextPlainText::Layout(wxDC& dc, const wxRect& WXUNUSED(rect), int WXUNUSED(style))
{
if (GetAttributes().GetFont().Ok())
dc.SetFont(GetAttributes().GetFont());
@@ -4052,7 +4098,7 @@ bool wxRichTextImage::Draw(wxDC& dc, const wxRichTextRange& range, const wxRichT
}
/// Lay the item out
bool wxRichTextImage::Layout(wxDC& WXUNUSED(dc), const wxRect& rect, const wxRichTextRange& WXUNUSED(affected), int WXUNUSED(style))
bool wxRichTextImage::Layout(wxDC& WXUNUSED(dc), const wxRect& rect, int WXUNUSED(style))
{
if (!m_image.Ok())
LoadFromBlock();