71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
// Copyright 2016 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_
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#define XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_
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#include <stdint.h>
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#include "core/fxcrt/unowned_ptr.h"
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#include "fxjs/gc/heap.h"
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#include "v8/include/cppgc/garbage-collected.h"
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#include "v8/include/cppgc/member.h"
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#include "v8/include/cppgc/visitor.h"
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#include "xfa/fxfa/parser/cxfa_document.h"
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class CXFA_ContentLayoutProcessor;
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class CXFA_LayoutItem;
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class CXFA_Node;
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class CXFA_ViewLayoutItem;
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class CXFA_ViewLayoutProcessor;
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namespace cppgc {
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class Heap;
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} // namespace cppgc
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class CXFA_LayoutProcessor final : public CXFA_Document::LayoutProcessorIface {
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public:
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static CXFA_LayoutProcessor* FromDocument(const CXFA_Document* pXFADoc);
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CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
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~CXFA_LayoutProcessor() override;
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void Trace(cppgc::Visitor* visitor) const override;
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// CXFA_Document::LayoutProcessorIface:
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void SetForceRelayout() override;
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void SetHasChangedContainer() override;
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int32_t StartLayout();
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int32_t DoLayout();
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bool IncrementLayout();
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int32_t CountPages() const;
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CXFA_ViewLayoutItem* GetPage(int32_t index) const;
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CXFA_LayoutItem* GetLayoutItem(CXFA_Node* pFormItem);
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CXFA_ContentLayoutProcessor* GetRootContentLayoutProcessor() const {
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return m_pContentLayoutProcessor;
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}
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CXFA_ViewLayoutProcessor* GetLayoutPageMgr() const {
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return m_pViewLayoutProcessor;
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}
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private:
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explicit CXFA_LayoutProcessor(cppgc::Heap* pHeap);
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cppgc::Heap* GetHeap() { return m_pHeap; }
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bool NeedLayout() const;
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int32_t RestartLayout();
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UnownedPtr<cppgc::Heap> const m_pHeap;
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cppgc::Member<CXFA_ViewLayoutProcessor> m_pViewLayoutProcessor;
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cppgc::Member<CXFA_ContentLayoutProcessor> m_pContentLayoutProcessor;
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uint32_t m_nProgressCounter = 0;
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bool m_bHasChangedContainers = false;
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bool m_bNeedLayout = true;
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};
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#endif // XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_
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