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Reuse wxCaret object

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Add page break specification
Optimize drawing after character input


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42734 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2006-10-30 17:51:38 +00:00
parent 391bf008a7
commit ea160b2e92
5 changed files with 232 additions and 22 deletions
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187
src/richtext/richtextbuffer.cpp
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@@ -43,6 +43,9 @@
WX_DEFINE_LIST(wxRichTextObjectList)
WX_DEFINE_LIST(wxRichTextLineList)
// Switch off if the platform doesn't like it for some reason
#define wxRICHTEXT_USE_OPTIMIZED_DRAWING 1
/*!
* wxRichTextObject
* This is the base for drawable objects.
@@ -526,7 +529,12 @@ bool wxRichTextParagraphLayoutBox::Draw(wxDC& dc, const wxRichTextRange& range,
{
wxRect childRect(child->GetPosition(), child->GetCachedSize());
if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetTop() > rect.GetBottom() || childRect.GetBottom() < rect.GetTop())
if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetTop() > rect.GetBottom())
{
// Stop drawing
break;
}
else if (((style & wxRICHTEXT_DRAW_IGNORE_CACHE) == 0) && childRect.GetBottom() < rect.GetTop())
{
// Skip
}
@@ -5911,6 +5919,57 @@ bool wxRichTextAction::Do()
{
case wxRICHTEXT_INSERT:
{
// Store a list of line start character and y positions so we can figure out which area
// we need to refresh
wxArrayInt optimizationLineCharPositions;
wxArrayInt optimizationLineYPositions;
#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
// NOTE: we're assuming that the buffer is laid out correctly at this point.
// If we had several actions, which only invalidate and leave layout until the
// paint handler is called, then this might not be true. So we may need to switch
// optimisation on only when we're simply adding text and not simultaneously
// deleting a selection, for example. Or, we make sure the buffer is laid out correctly
// first, but of course this means we'll be doing it twice.
if (!m_buffer->GetDirty() && m_ctrl) // can only do optimisation if the buffer is already laid out correctly
{
wxSize clientSize = m_ctrl->GetClientSize();
wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
int lastY = firstVisiblePt.y + clientSize.y;
wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetPosition());
wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
while (node)
{
wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
while (node2)
{
wxRichTextLine* line = node2->GetData();
wxPoint pt = line->GetAbsolutePosition();
wxRichTextRange range = line->GetAbsoluteRange();
if (pt.y > lastY)
{
node2 = NULL;
node = NULL;
}
else if (range.GetStart() > GetPosition() && pt.y >= firstVisiblePt.y)
{
optimizationLineCharPositions.Add(range.GetStart());
optimizationLineYPositions.Add(pt.y);
}
if (node2)
node2 = node2->GetNext();
}
if (node)
node = node->GetNext();
}
}
#endif
m_buffer->InsertFragment(GetPosition(), m_newParagraphs);
m_buffer->UpdateRanges();
m_buffer->Invalidate(GetRange());
@@ -5925,8 +5984,12 @@ bool wxRichTextAction::Do()
newCaretPosition --;
newCaretPosition = wxMin(newCaretPosition, (m_buffer->GetRange().GetEnd()-1));
UpdateAppearance(newCaretPosition, true /* send update event */);
if (optimizationLineCharPositions.GetCount() > 0)
UpdateAppearance(newCaretPosition, true /* send update event */, & optimizationLineCharPositions, & optimizationLineYPositions);
else
UpdateAppearance(newCaretPosition, true /* send update event */);
break;
}
@@ -5971,7 +6034,7 @@ bool wxRichTextAction::Undo()
long newCaretPosition = GetPosition() - 1;
// if (m_newParagraphs.GetPartialParagraph())
// newCaretPosition --;
UpdateAppearance(newCaretPosition, true /* send update event */);
break;
@@ -6003,7 +6066,7 @@ bool wxRichTextAction::Undo()
}
/// Update the control appearance
void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent)
void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent, wxArrayInt* optimizationLineCharPositions, wxArrayInt* optimizationLineYPositions)
{
if (m_ctrl)
{
@@ -6012,7 +6075,98 @@ void wxRichTextAction::UpdateAppearance(long caretPosition, bool sendUpdateEvent
{
m_ctrl->LayoutContent();
m_ctrl->PositionCaret();
m_ctrl->Refresh(false);
#if wxRICHTEXT_USE_OPTIMIZED_DRAWING
// Find refresh rectangle if we are in a position to optimise refresh
if (m_cmdId == wxRICHTEXT_INSERT && optimizationLineCharPositions && optimizationLineCharPositions->GetCount() > 0)
{
size_t i;
wxSize clientSize = m_ctrl->GetClientSize();
wxPoint firstVisiblePt = m_ctrl->GetFirstVisiblePoint();
// Start/end positions
int firstY = 0;
int lastY = firstVisiblePt.y + clientSize.y;
bool foundStart = false;
bool foundEnd = false;
// position offset - how many characters were inserted
int positionOffset = GetRange().GetLength();
// find the first line which is being drawn at the same position as it was
// before. Since we're talking about a simple insertion, we can assume
// that the rest of the window does not need to be redrawn.
wxRichTextParagraph* para = m_buffer->GetParagraphAtPosition(GetPosition());
wxRichTextObjectList::compatibility_iterator node = m_buffer->GetChildren().Find(para);
while (node)
{
wxRichTextParagraph* child = (wxRichTextParagraph*) node->GetData();
wxRichTextLineList::compatibility_iterator node2 = child->GetLines().GetFirst();
while (node2)
{
wxRichTextLine* line = node2->GetData();
wxPoint pt = line->GetAbsolutePosition();
wxRichTextRange range = line->GetAbsoluteRange();
// we want to find the first line that is in the same position
// as before. This will mean we're at the end of the changed text.
if (pt.y > lastY) // going past the end of the window, no more info
{
node2 = NULL;
node = NULL;
}
else
{
if (!foundStart)
{
firstY = pt.y - firstVisiblePt.y;
foundStart = true;
}
// search for this line being at the same position as before
for (i = 0; i < optimizationLineCharPositions->GetCount(); i++)
{
if (((*optimizationLineCharPositions)[i] + positionOffset == range.GetStart()) &&
((*optimizationLineYPositions)[i] == pt.y))
{
// Stop, we're now the same as we were
foundEnd = true;
lastY = pt.y - firstVisiblePt.y;
node2 = NULL;
node = NULL;
break;
}
}
}
if (node2)
node2 = node2->GetNext();
}
if (node)
node = node->GetNext();
}
if (!foundStart)
firstY = firstVisiblePt.y;
if (!foundEnd)
lastY = firstVisiblePt.y + clientSize.y;
wxRect rect(firstVisiblePt.x, firstY, firstVisiblePt.x + clientSize.x, lastY - firstY);
m_ctrl->RefreshRect(rect);
// TODO: we need to make sure that lines are only drawn if in the update region. The rect
// passed to Draw is currently used in different ways (to pass the position the content should
// be drawn at as well as the relevant region).
}
else
#endif
m_ctrl->Refresh(false);
if (sendUpdateEvent)
m_ctrl->SendTextUpdatedEvent();
@@ -6213,7 +6367,8 @@ bool wxTextAttrEq(const wxTextAttrEx& attr1, const wxRichTextAttr& attr2)
attr1.GetBulletFont() == attr2.GetBulletFont() &&
attr1.GetCharacterStyleName() == attr2.GetCharacterStyleName() &&
attr1.GetParagraphStyleName() == attr2.GetParagraphStyleName() &&
attr1.GetListStyleName() == attr2.GetListStyleName());
attr1.GetListStyleName() == attr2.GetListStyleName() &&
attr1.HasPageBreak() == attr2.HasPageBreak());
}
/// Compare two attribute objects, but take into account the flags
@@ -6302,6 +6457,10 @@ bool wxTextAttrEqPartial(const wxTextAttrEx& attr1, const wxTextAttrEx& attr2, i
!wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()))
return false;
if ((flags & wxTEXT_ATTR_PAGE_BREAK) &&
(attr1.HasPageBreak() != attr2.HasPageBreak()))
return false;
return true;
}
@@ -6392,6 +6551,10 @@ bool wxTextAttrEqPartial(const wxTextAttrEx& attr1, const wxRichTextAttr& attr2,
!wxRichTextTabsEq(attr1.GetTabs(), attr2.GetTabs()))
return false;
if ((flags & wxTEXT_ATTR_PAGE_BREAK) &&
(attr1.HasPageBreak() != attr2.HasPageBreak()))
return false;
return true;
}
@@ -6515,6 +6678,9 @@ bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxTextAttrEx& style)
if (style.HasURL())
destStyle.SetURL(style.GetURL());
if (style.HasPageBreak())
destStyle.SetPageBreak();
return true;
}
@@ -6729,6 +6895,12 @@ bool wxRichTextApplyStyle(wxTextAttrEx& destStyle, const wxRichTextAttr& style,
destStyle.SetURL(style.GetURL());
}
if (style.HasPageBreak())
{
if (!(compareWith && compareWith->HasPageBreak()))
destStyle.SetPageBreak();
}
return true;
}
@@ -7106,6 +7278,9 @@ wxRichTextAttr wxRichTextAttr::Combine(const wxRichTextAttr& attr,
if (attr.HasURL())
newAttr.SetURL(attr.GetURL());
if (attr.HasPageBreak())
newAttr.SetPageBreak();
return newAttr;
}