X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/83ef387efe9fd569ba388aff0bf7e9ade58f5208..2a45803fc3877afd0ae3ce356dfe216505165882:/src/richtext/richtextbuffer.cpp diff --git a/src/richtext/richtextbuffer.cpp b/src/richtext/richtextbuffer.cpp index 736fadd3a8..536ca8b67e 100644 --- a/src/richtext/richtextbuffer.cpp +++ b/src/richtext/richtextbuffer.cpp @@ -1400,7 +1400,7 @@ wxRichTextObject* wxRichTextCompositeObject::GetChildAtPosition(long pos) const } /// Recursively merge all pieces that can be merged. -bool wxRichTextCompositeObject::Defragment(const wxRichTextRange& range) +bool wxRichTextCompositeObject::Defragment(wxRichTextDrawingContext& context, const wxRichTextRange& range) { wxRichTextObjectList::compatibility_iterator node = m_children.GetFirst(); while (node) @@ -1410,24 +1410,85 @@ bool wxRichTextCompositeObject::Defragment(const wxRichTextRange& range) { wxRichTextCompositeObject* composite = wxDynamicCast(child, wxRichTextCompositeObject); if (composite) - composite->Defragment(); + composite->Defragment(context); - if (node->GetNext()) + // Optimization: if there are no virtual attributes, we won't need to + // to split objects in order to paint individually attributed chunks. + // So only merge in this case. + if (!context.GetVirtualAttributesEnabled()) { - wxRichTextObject* nextChild = node->GetNext()->GetData(); - if (child->CanMerge(nextChild) && child->Merge(nextChild)) + if (node->GetNext()) { - nextChild->Dereference(); - m_children.Erase(node->GetNext()); - - // Don't set node -- we'll see if we can merge again with the next - // child. + wxRichTextObject* nextChild = node->GetNext()->GetData(); + if (child->CanMerge(nextChild, context) && child->Merge(nextChild, context)) + { + nextChild->Dereference(); + m_children.Erase(node->GetNext()); + } + else + node = node->GetNext(); } else node = node->GetNext(); } else - node = node->GetNext(); + { + // If we might have virtual attributes, we first see if we have to split + // objects so that they may be painted with potential virtual attributes, + // since text objects can only draw or measure with a single attributes object + // at a time. + wxRichTextObject* childAfterSplit = child; + if (child->CanSplit(context)) + { + childAfterSplit = child->Split(context); + node = m_children.Find(childAfterSplit); + } + + if (node->GetNext()) + { + wxRichTextObject* nextChild = node->GetNext()->GetData(); + wxRichTextObjectList::compatibility_iterator nextNode = node->GetNext(); + + // First split child and nextChild so we have smaller fragments to merge. + // Then Merge only has to test per-object virtual attributes + // because for an object with all the same sub-object attributes, + // then any general virtual attributes should be merged with sub-objects by + // the implementation. + + wxRichTextObject* nextChildAfterSplit = nextChild; + + if (nextChildAfterSplit->CanSplit(context)) + nextChildAfterSplit = nextChild->Split(context); + + bool splitNextChild = nextChild != nextChildAfterSplit; + + // See if we can merge this new fragment with (perhaps the first part of) the next object. + // Note that we use nextChild because if we had split nextChild, the first object always + // remains (and further parts are appended). However we must use childAfterSplit since + // it's the last part of a possibly split child. + + if (childAfterSplit->CanMerge(nextChild, context) && childAfterSplit->Merge(nextChild, context)) + { + nextChild->Dereference(); + m_children.Erase(node->GetNext()); + + // Don't set node -- we'll see if we can merge again with the next + // child. UNLESS we split this or the next child, in which case we know we have to + // move on to the end of the next child. + if (splitNextChild) + node = m_children.Find(nextChildAfterSplit); + } + else + { + if (splitNextChild) + node = m_children.Find(nextChildAfterSplit); // start from the last object in the split + else + node = node->GetNext(); + } + } + else + node = node->GetNext(); + } } else node = node->GetNext(); @@ -3795,8 +3856,21 @@ wxRichTextRange wxRichTextParagraphLayoutBox::GetInvalidRange(bool wholeParagrap wxRichTextParagraph* para1 = GetParagraphAtPosition(range.GetStart()); if (para1) range.SetStart(para1->GetRange().GetStart()); - // floating layout make all child should be relayout - range.SetEnd(GetOwnRange().GetEnd()); + + // FIXME: be more intelligent about this. Check if we have floating objects + // before the end of the range. But it's not clear how we can in general + // tell where it's safe to stop laying out. + // Anyway, this code is central to efficiency when laying in floating mode. + if (!wxRichTextBuffer::GetFloatingLayoutMode()) + { + wxRichTextParagraph* para2 = GetParagraphAtPosition(range.GetEnd()); + if (para2) + range.SetEnd(para2->GetRange().GetEnd()); + } + else + // Floating layout means that all children should be laid out, + // because we can't tell how the whole buffer will be affected. + range.SetEnd(GetOwnRange().GetEnd()); } return range; } @@ -6313,8 +6387,14 @@ bool wxRichTextPlainText::Draw(wxDC& dc, wxRichTextDrawingContext& context, cons int offset = GetRange().GetStart(); - // Replace line break characters with spaces wxString str = m_text; + if (context.HasVirtualText(this)) + { + if (!context.GetVirtualText(this, str) || str.Length() != m_text.Length()) + str = m_text; + } + + // Replace line break characters with spaces wxString toRemove = wxRichTextLineBreakChar; str.Replace(toRemove, wxT(" ")); if (textAttr.HasTextEffects() && (textAttr.GetTextEffects() & (wxTEXT_ATTR_EFFECT_CAPITALS|wxTEXT_ATTR_EFFECT_SMALL_CAPITALS))) @@ -6696,6 +6776,12 @@ bool wxRichTextPlainText::GetRangeSize(const wxRichTextRange& range, wxSize& siz long len = range.GetLength(); wxString str(m_text); + if (context.HasVirtualText(this)) + { + if (!context.GetVirtualText(this, str) || str.Length() != m_text.Length()) + str = m_text; + } + wxString toReplace = wxRichTextLineBreakChar; str.Replace(toReplace, wxT(" ")); @@ -6902,15 +6988,44 @@ wxString wxRichTextPlainText::GetTextForRange(const wxRichTextRange& range) cons } /// Returns true if this object can merge itself with the given one. -bool wxRichTextPlainText::CanMerge(wxRichTextObject* object) const +bool wxRichTextPlainText::CanMerge(wxRichTextObject* object, wxRichTextDrawingContext& context) const { - return object->GetClassInfo() == wxCLASSINFO(wxRichTextPlainText) && - (m_text.empty() || (wxTextAttrEq(GetAttributes(), object->GetAttributes()) && m_properties == object->GetProperties())); + // JACS 2013-01-27 + if (!context.GetVirtualAttributesEnabled()) + { + return object->GetClassInfo() == wxCLASSINFO(wxRichTextPlainText) && + (m_text.empty() || (wxTextAttrEq(GetAttributes(), object->GetAttributes()) && m_properties == object->GetProperties())); + } + else + { + wxRichTextPlainText* otherObj = wxDynamicCast(object, wxRichTextPlainText); + if (!otherObj || m_text.empty()) + return false; + + if (!wxTextAttrEq(GetAttributes(), object->GetAttributes()) || !(m_properties == object->GetProperties())) + return false; + + // Check if differing virtual attributes makes it impossible to merge + // these strings. + + bool hasVirtualAttr1 = context.HasVirtualAttributes((wxRichTextObject*) this); + bool hasVirtualAttr2 = context.HasVirtualAttributes((wxRichTextObject*) object); + if (!hasVirtualAttr1 && !hasVirtualAttr2) + return true; + else if (hasVirtualAttr1 != hasVirtualAttr2) + return false; + else + { + wxRichTextAttr virtualAttr1 = context.GetVirtualAttributes((wxRichTextObject*) this); + wxRichTextAttr virtualAttr2 = context.GetVirtualAttributes((wxRichTextObject*) object); + return virtualAttr1 == virtualAttr2; + } + } } /// Returns true if this object merged itself with the given one. /// The calling code will then delete the given object. -bool wxRichTextPlainText::Merge(wxRichTextObject* object) +bool wxRichTextPlainText::Merge(wxRichTextObject* object, wxRichTextDrawingContext& WXUNUSED(context)) { wxRichTextPlainText* textObject = wxDynamicCast(object, wxRichTextPlainText); wxASSERT( textObject != NULL ); @@ -6925,6 +7040,214 @@ bool wxRichTextPlainText::Merge(wxRichTextObject* object) return false; } +bool wxRichTextPlainText::CanSplit(wxRichTextDrawingContext& context) const +{ + // If this object has any virtual attributes at all, whether for the whole object + // or individual ones, we should try splitting it by calling Split. + // Must be more than one character in order to be able to split. + return m_text.Length() > 1 && context.HasVirtualAttributes((wxRichTextObject*) this); +} + +wxRichTextObject* wxRichTextPlainText::Split(wxRichTextDrawingContext& context) +{ + int count = context.GetVirtualSubobjectAttributesCount(this); + if (count > 0 && GetParent()) + { + wxRichTextCompositeObject* parent = wxDynamicCast(GetParent(), wxRichTextCompositeObject); + wxRichTextObjectList::compatibility_iterator node = parent->GetChildren().Find(this); + if (node) + { + const wxRichTextAttr emptyAttr; + wxRichTextObjectList::compatibility_iterator next = node->GetNext(); + + wxArrayInt positions; + wxRichTextAttrArray attributes; + if (context.GetVirtualSubobjectAttributes(this, positions, attributes) && positions.GetCount() > 0) + { + wxASSERT(positions.GetCount() == attributes.GetCount()); + + // We will gather up runs of text with the same virtual attributes + + int len = m_text.Length(); + int i = 0; + + // runStart and runEnd represent the accumulated run with a consistent attribute + // that hasn't yet been appended + int runStart = -1; + int runEnd = -1; + wxRichTextAttr currentAttr; + wxString text = m_text; + wxRichTextPlainText* lastPlainText = this; + + for (i = 0; i < (int) positions.GetCount(); i++) + { + int pos = positions[i]; + wxASSERT(pos >= 0 && pos < len); + if (pos >= 0 && pos < len) + { + const wxRichTextAttr& attr = attributes[i]; + + if (pos == 0) + { + runStart = 0; + currentAttr = attr; + } + // Check if there was a gap from the last known attribute and this. + // In that case, we need to do something with the span of non-attributed text. + else if ((pos-1) > runEnd) + { + if (runEnd == -1) + { + // We hadn't processed anything previously, so the previous run is from the text start + // to just before this position. The current attribute remains empty. + runStart = 0; + runEnd = pos-1; + } + else + { + // If the previous attribute matches the gap's attribute (i.e., no attributes) + // then just extend the run. + if (currentAttr.IsDefault()) + { + runEnd = pos-1; + } + else + { + // We need to add an object, or reuse the existing one. + if (runStart == 0) + { + lastPlainText = this; + SetText(text.Mid(runStart, runEnd - runStart + 1)); + } + else + { + wxRichTextPlainText* obj = new wxRichTextPlainText; + lastPlainText = obj; + obj->SetAttributes(GetAttributes()); + obj->SetProperties(GetProperties()); + obj->SetParent(parent); + + obj->SetText(text.Mid(runStart, runEnd - runStart + 1)); + if (next) + parent->GetChildren().Insert(next, obj); + else + parent->GetChildren().Append(obj); + } + + runStart = runEnd+1; + runEnd = pos-1; + + currentAttr = emptyAttr; + } + } + } + + wxASSERT(runEnd == pos-1); + + // Now we only have to deal with the previous run + if (currentAttr == attr) + { + // If we still have the same attributes, then we + // simply increase the run size. + runEnd = pos; + } + else + { + if (runEnd >= 0) + { + // We need to add an object, or reuse the existing one. + if (runStart == 0) + { + lastPlainText = this; + SetText(text.Mid(runStart, runEnd - runStart + 1)); + } + else + { + wxRichTextPlainText* obj = new wxRichTextPlainText; + lastPlainText = obj; + obj->SetAttributes(GetAttributes()); + obj->SetProperties(GetProperties()); + obj->SetParent(parent); + + obj->SetText(text.Mid(runStart, runEnd - runStart + 1)); + if (next) + parent->GetChildren().Insert(next, obj); + else + parent->GetChildren().Append(obj); + } + } + + runStart = pos; + runEnd = pos; + + currentAttr = attr; + } + } + } + + // We may still have a run to add, and possibly a no-attribute text fragment after that. + // If the whole string was already a single attribute (the run covers the whole string), don't split. + if ((runStart != -1) && !(runStart == 0 && runEnd == (len-1))) + { + // If the current attribute is empty, merge the run with the next fragment + // which by definition (because it's not specified) has empty attributes. + if (currentAttr.IsDefault()) + runEnd = (len-1); + + if (runEnd < (len-1)) + { + // We need to add an object, or reuse the existing one. + if (runStart == 0) + { + lastPlainText = this; + SetText(text.Mid(runStart, runEnd - runStart + 1)); + } + else + { + wxRichTextPlainText* obj = new wxRichTextPlainText; + lastPlainText = obj; + obj->SetAttributes(GetAttributes()); + obj->SetProperties(GetProperties()); + obj->SetParent(parent); + + obj->SetText(text.Mid(runStart, runEnd - runStart + 1)); + if (next) + parent->GetChildren().Insert(next, obj); + else + parent->GetChildren().Append(obj); + } + + runStart = runEnd+1; + runEnd = (len-1); + } + + // Now the last, non-attributed fragment at the end, if any + if ((runStart < len) && !(runStart == 0 && runEnd == (len-1))) + { + wxASSERT(runStart != 0); + + wxRichTextPlainText* obj = new wxRichTextPlainText; + obj->SetAttributes(GetAttributes()); + obj->SetProperties(GetProperties()); + obj->SetParent(parent); + + obj->SetText(text.Mid(runStart, runEnd - runStart + 1)); + if (next) + parent->GetChildren().Insert(next, obj); + else + parent->GetChildren().Append(obj); + + lastPlainText = obj; + } + } + + return lastPlainText; + } + } + } + return this; +} + /// Dump to output stream for debugging void wxRichTextPlainText::Dump(wxTextOutputStream& stream) { @@ -10745,7 +11068,7 @@ bool wxRichTextImage::LoadImageCache(wxDC& dc, bool resetCache) // the image so long as the new cached bitmap size hasn't changed. wxImage image; - if (resetCache || m_originalImageSize.GetWidth() <= 0 || m_originalImageSize.GetHeight() <= -1) + if (resetCache || m_originalImageSize.GetWidth() <= 0 || m_originalImageSize.GetHeight() <= 0) { m_imageCache = wxNullBitmap; @@ -10774,6 +11097,10 @@ bool wxRichTextImage::LoadImageCache(wxDC& dc, bool resetCache) // Subtract borders sz = buffer->GetRichTextCtrl()->GetClientSize(); + // Use a minimum size to stop images becoming very small + sz.x = wxMax(sz.x, 100); + sz.y = wxMax(sz.y, 100); + wxRect marginRect, borderRect, contentRect, paddingRect, outlineRect; marginRect = wxRect(0, 0, sz.x, sz.y); buffer->GetBoxRects(dc, buffer, buffer->GetAttributes(), marginRect, borderRect, contentRect, paddingRect, outlineRect); @@ -10861,6 +11188,10 @@ bool wxRichTextImage::LoadImageCache(wxDC& dc, bool resetCache) width = (int) (float(m_originalImageSize.GetWidth()) * (float(height)/float(m_originalImageSize.GetHeight()))); } + // Prevent the use of zero size + width = wxMax(1, width); + height = wxMax(1, height); + if (m_imageCache.IsOk() && m_imageCache.GetWidth() == width && m_imageCache.GetHeight() == height) { // Do nothing, we didn't need to change the image cache @@ -13090,6 +13421,9 @@ void wxTextAttrCollectCommonAttributes(wxTextAttr& currentStyle, const wxTextAtt WX_DEFINE_OBJARRAY(wxRichTextVariantArray); +// JACS 2013-01-27 +WX_DEFINE_OBJARRAY(wxRichTextAttrArray); + IMPLEMENT_DYNAMIC_CLASS(wxRichTextProperties, wxObject) bool wxRichTextProperties::operator==(const wxRichTextProperties& props) const @@ -13403,8 +13737,19 @@ bool wxRichTextSelection::WithinSelection(const wxRichTextRange& range, const wx IMPLEMENT_CLASS(wxRichTextDrawingHandler, wxObject) IMPLEMENT_CLASS(wxRichTextDrawingContext, wxObject) +wxRichTextDrawingContext::wxRichTextDrawingContext(wxRichTextBuffer* buffer) +{ + Init(); + m_buffer = buffer; + if (m_buffer && m_buffer->GetRichTextCtrl()) + EnableVirtualAttributes(m_buffer->GetRichTextCtrl()->GetVirtualAttributesEnabled()); +} + bool wxRichTextDrawingContext::HasVirtualAttributes(wxRichTextObject* obj) const { + if (!GetVirtualAttributesEnabled()) + return false; + wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); while (node) { @@ -13420,6 +13765,9 @@ bool wxRichTextDrawingContext::HasVirtualAttributes(wxRichTextObject* obj) const wxRichTextAttr wxRichTextDrawingContext::GetVirtualAttributes(wxRichTextObject* obj) const { wxRichTextAttr attr; + if (!GetVirtualAttributesEnabled()) + return attr; + // We apply all handlers, so we can may combine several different attributes wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); while (node) @@ -13439,6 +13787,9 @@ wxRichTextAttr wxRichTextDrawingContext::GetVirtualAttributes(wxRichTextObject* bool wxRichTextDrawingContext::ApplyVirtualAttributes(wxRichTextAttr& attr, wxRichTextObject* obj) const { + if (!GetVirtualAttributesEnabled()) + return false; + if (HasVirtualAttributes(obj)) { wxRichTextAttr a(GetVirtualAttributes(obj)); @@ -13449,6 +13800,75 @@ bool wxRichTextDrawingContext::ApplyVirtualAttributes(wxRichTextAttr& attr, wxRi return false; } +int wxRichTextDrawingContext::GetVirtualSubobjectAttributesCount(wxRichTextObject* obj) const +{ + if (!GetVirtualAttributesEnabled()) + return 0; + + wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); + while (node) + { + wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData(); + int count = handler->GetVirtualSubobjectAttributesCount(obj); + if (count > 0) + return count; + + node = node->GetNext(); + } + return 0; +} + +int wxRichTextDrawingContext::GetVirtualSubobjectAttributes(wxRichTextObject* obj, wxArrayInt& positions, wxRichTextAttrArray& attributes) const +{ + if (!GetVirtualAttributesEnabled()) + return 0; + + wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); + while (node) + { + wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData(); + if (handler->GetVirtualSubobjectAttributes(obj, positions, attributes)) + return positions.GetCount(); + + node = node->GetNext(); + } + return 0; +} + +bool wxRichTextDrawingContext::HasVirtualText(const wxRichTextPlainText* obj) const +{ + if (!GetVirtualAttributesEnabled()) + return false; + + wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); + while (node) + { + wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData(); + if (handler->HasVirtualText(obj)) + return true; + + node = node->GetNext(); + } + return false; +} + +bool wxRichTextDrawingContext::GetVirtualText(const wxRichTextPlainText* obj, wxString& text) const +{ + if (!GetVirtualAttributesEnabled()) + return false; + + wxList::compatibility_iterator node = m_buffer->GetDrawingHandlers().GetFirst(); + while (node) + { + wxRichTextDrawingHandler *handler = (wxRichTextDrawingHandler*)node->GetData(); + if (handler->GetVirtualText(obj, text)) + return true; + + node = node->GetNext(); + } + return false; +} + /// Adds a handler to the end void wxRichTextBuffer::AddDrawingHandler(wxRichTextDrawingHandler *handler) {