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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #include "SkViewPriv.h"
      9 
     10 //////////////////////////////////////////////////////////////////////
     11 
     12 void SkView::Artist::draw(SkView* view, SkCanvas* canvas)
     13 {
     14 	SkASSERT(view && canvas);
     15 	this->onDraw(view, canvas);
     16 }
     17 
     18 void SkView::Artist::inflate(const SkDOM& dom, const SkDOM::Node* node)
     19 {
     20 	SkASSERT(&dom && node);
     21 	this->onInflate(dom, node);
     22 }
     23 
     24 void SkView::Artist::onInflate(const SkDOM& dom, const SkDOM::Node* node)
     25 {
     26 	// subclass should override this as needed
     27 }
     28 
     29 SkView::Artist* SkView::getArtist() const
     30 {
     31 	Artist_SkTagList* rec = (Artist_SkTagList*)this->findTagList(kViewArtist_SkTagList);
     32 	SkASSERT(rec == NULL || rec->fArtist != NULL);
     33 
     34 	return rec ? rec->fArtist : NULL;
     35 }
     36 
     37 SkView::Artist* SkView::setArtist(Artist* obj)
     38 {
     39 	if (obj == NULL)
     40 	{
     41 		this->removeTagList(kViewArtist_SkTagList);
     42 	}
     43 	else	// add/replace
     44 	{
     45 		Artist_SkTagList* rec = (Artist_SkTagList*)this->findTagList(kViewArtist_SkTagList);
     46 
     47 		if (rec)
     48 			SkRefCnt_SafeAssign(rec->fArtist, obj);
     49 		else
     50 			this->addTagList(new Artist_SkTagList(obj));
     51 	}
     52 	return obj;
     53 }
     54 
     55 ////////////////////////////////////////////////////////////////////////////////
     56 
     57 void SkView::Layout::layoutChildren(SkView* parent)
     58 {
     59 	SkASSERT(parent);
     60 	if (parent->width() > 0 && parent->height() > 0)
     61 		this->onLayoutChildren(parent);
     62 }
     63 
     64 void SkView::Layout::inflate(const SkDOM& dom, const SkDOM::Node* node)
     65 {
     66 	SkASSERT(&dom && node);
     67 	this->onInflate(dom, node);
     68 }
     69 
     70 void SkView::Layout::onInflate(const SkDOM& dom, const SkDOM::Node* node)
     71 {
     72 	// subclass should override this as needed
     73 }
     74 
     75 SkView::Layout* SkView::getLayout() const
     76 {
     77 	Layout_SkTagList* rec = (Layout_SkTagList*)this->findTagList(kViewLayout_SkTagList);
     78 	SkASSERT(rec == NULL || rec->fLayout != NULL);
     79 
     80 	return rec ? rec->fLayout : NULL;
     81 }
     82 
     83 SkView::Layout* SkView::setLayout(Layout* obj, bool invokeLayoutNow)
     84 {
     85 	if (obj == NULL)
     86 	{
     87 		this->removeTagList(kViewLayout_SkTagList);
     88 	}
     89 	else	// add/replace
     90 	{
     91 		Layout_SkTagList* rec = (Layout_SkTagList*)this->findTagList(kViewLayout_SkTagList);
     92 
     93 		if (rec)
     94 			SkRefCnt_SafeAssign(rec->fLayout, obj);
     95 		else
     96 			this->addTagList(new Layout_SkTagList(obj));
     97 	}
     98 
     99 	if (invokeLayoutNow)
    100 		this->invokeLayout();
    101 
    102 	return obj;
    103 }
    104 
    105