39846f5631
selection in the tree view. git-svn-id: svn://10.0.0.236/trunk@16695 18797224-902f-48f8-a5cc-f745e15eee43
136 lines
5.0 KiB
C++
136 lines
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsHTTreeDataModel_h___
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#define nsHTTreeDataModel_h___
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#include "nsHTDataModel.h"
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#include "nsTreeDataModel.h"
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#include "nsIImageObserver.h"
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class nsTreeColumn;
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class nsTreeControlStripItem;
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//------------------------------------------------------------
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// An abstract API for communication with a hierarchical store of
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// information. Iteration over children in the model is provided.
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// The model also provides a flattened view of the tree (a list
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// of visible nodes).
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//------------------------------------------------------------
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class nsHTTreeDataModel : public nsHTDataModel, public nsTreeDataModel, public nsIImageRequestObserver
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{
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public:
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nsHTTreeDataModel();
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virtual ~nsHTTreeDataModel();
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// Isupports interface ------------------
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NS_DECL_ISUPPORTS
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// IImageRequestObserver Interface ----------------
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void Notify(nsIImageRequest *aImageRequest,
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nsIImage *aImage,
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nsImageNotification aNotificationType,
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PRInt32 aParam1, PRInt32 aParam2,
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void *aParam3);
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void NotifyError(nsIImageRequest *aImageRequest,
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nsImageError aErrorType);
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// End of interfaces
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// Functions inherited from abstract hierarchical data model should be delegated to our
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// concrete base class
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// Setting the Content Root for the tree
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virtual void SetContentRoot(nsIContent* pContent);
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virtual nsHierarchicalDataItem* GetRoot() const { return GetRootDelegate(); }
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virtual PRUint32 GetFirstVisibleItemIndex() const { return GetFirstVisibleItemIndexDelegate(); };
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virtual void SetFirstVisibleItemIndex(PRUint32 index) { SetFirstVisibleItemIndexDelegate(index); };
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virtual nsHierarchicalDataItem* GetNthItem(PRUint32 n) const { return GetNthItemDelegate(n) ;};
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virtual void SetDataModelListener(nsDataModelWidget* pListener) { SetDataModelListenerDelegate(pListener); };
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virtual void SetSelection(nsHierarchicalDataItem* pDataItem)
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{ SetSelectionDelegate(pDataItem); };
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virtual void ToggleSelection(nsHierarchicalDataItem* pDataItem)
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{ ToggleSelectionDelegate(pDataItem); };
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virtual void RangedSelection(PRUint32 n, PRUint32 count)
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{ RangedSelectionDelegate(n, count); };
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virtual void ClearSelection()
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{ ClearSelectionDelegate(); };
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// End of delegated functions
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// Column Iteration
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virtual PRUint32 GetVisibleColumnCount() const;
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virtual PRUint32 GetColumnCount() const;
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virtual nsTreeColumn* GetNthColumn(PRUint32 n) const;
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virtual void SetVisibleColumnCount(PRUint32 n);
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// Control Strip Iteration
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virtual PRUint32 GetControlStripItemCount() const;
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virtual nsTreeControlStripItem* GetNthControlStripItem(PRUint32 n) const;
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virtual void GetControlStripCloseText(nsString& closeText) const;
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// Visibility Queries
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virtual PRBool ShowTitleBar() const;
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virtual PRBool ShowTitleBarText() const;
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virtual PRBool ShowColumnHeaders() const;
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virtual PRBool ShowControlStrip() const;
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// Style Retrievers
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virtual void GetTitleBarStyle(nsIDeviceContext* pContext,
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nsBasicStyleInfo& styleInfo) const;
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virtual void GetColumnHeaderStyle(nsIDeviceContext* pContext,
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nsColumnHeaderStyleInfo& styleInfo) const;
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virtual void GetControlStripStyle(nsIDeviceContext* pContext,
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nsBasicStyleInfo& styleInfo) const;
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virtual PRInt32 GetSelectedColumnIndex() const { return mSelectedColumnIndex; };
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virtual void SetSelectedColumnIndex(PRInt32 n) { mSelectedColumnIndex = n; };
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// Text for the title bar, control strip and column headers
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virtual void GetTitleBarText(nsString& text) const;
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public:
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// Inherited functions from HTDataModel go here.
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nsHierarchicalDataItem* CreateDataItemWithContentNode(nsIContent* pContent);
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protected:
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nsIImageRequest* RequestImage(nsString& reqUrl) const; // Helper to kick off the image load.
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nsIImage* GetTitleBGImage() const;
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nsIImage* GetControlStripBGImage() const;
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nsIImage* GetColumnHeaderBGImage() const;
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private:
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nsVoidArray mColumnArray;
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nsTreeControlStripItem *mSingleControlStripItem;
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PRUint32 mVisibleColumnCount;
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PRUint32 mTotalColumnCount;
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nsIImageRequest* mTitleBGRequest; // The title bar background image
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nsIImageRequest* mControlStripBGRequest;// The control strip bg image
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nsIImageRequest* mColumnHeaderBGRequest;// The column header background image
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PRInt32 mSelectedColumnIndex;
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};
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#endif /* nsHTTreeDataModel_h___ */
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