michael@0: /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0:  
michael@0: #ifndef _PAPERPS_H_
michael@0: #define _PAPERPS_H_
michael@0: 
michael@0: #include "nsDebug.h"
michael@0: 
michael@0: struct nsPaperSizePS_ {
michael@0:     const char *name;
michael@0:     float width_mm;
michael@0:     float height_mm;
michael@0:     bool isMetric;        // Present to the user in metric, if possible
michael@0: };
michael@0: 
michael@0: class nsPaperSizePS {
michael@0:     public:
michael@0:         /** ---------------------------------------------------
michael@0:          * Constructor
michael@0:          */
michael@0:         nsPaperSizePS() { mCurrent = 0; }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * @return true if the cursor points past the last item.
michael@0:          */
michael@0:         bool AtEnd() { return mCurrent >= mCount; }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * Position the cursor at the beginning of the paper size list.
michael@0:          * @return VOID
michael@0:          */
michael@0:         void First() { mCurrent = 0; }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * Advance the cursor to the next item.
michael@0:          * @return VOID
michael@0:          */
michael@0:         void Next() {
michael@0:             NS_ASSERTION(!AtEnd(), "Invalid current item");
michael@0:             mCurrent++;
michael@0:         }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * Point the cursor to the entry with the given paper name.
michael@0:          * @return true if pointing to a valid entry.
michael@0:          */
michael@0:         bool Find(const char *aName);
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * @return a pointer to the name of the current paper size
michael@0:          */
michael@0:         const char *Name() {
michael@0:             NS_PRECONDITION(!AtEnd(), "Invalid current item");
michael@0:             return mList[mCurrent].name;
michael@0:         }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * @return the width of the page in millimeters
michael@0:          */
michael@0:         float Width_mm() {
michael@0:             NS_PRECONDITION(!AtEnd(), "Invalid current item");
michael@0:             return mList[mCurrent].width_mm;
michael@0:         }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * @return the height of the page in millimeters
michael@0:          */
michael@0:         float Height_mm() {
michael@0:             NS_PRECONDITION(!AtEnd(), "Invalid current item");
michael@0:             return mList[mCurrent].height_mm;
michael@0:         }
michael@0: 
michael@0:         /** ---------------------------------------------------
michael@0:          * @return true if the paper should be presented to
michael@0:          *                 the user in metric units.
michael@0:          */
michael@0:         bool IsMetric() {
michael@0:             NS_PRECONDITION(!AtEnd(), "Invalid current item");
michael@0:             return mList[mCurrent].isMetric;
michael@0:         }
michael@0: 
michael@0:     private:
michael@0:         unsigned int mCurrent;
michael@0:         static const nsPaperSizePS_ mList[];
michael@0:         static const unsigned int mCount;
michael@0: };
michael@0: 
michael@0: #endif
michael@0: