LCOV - code coverage report
Current view: directory - gfx/src - nsPoint.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 0 0.0 %
Date: 2012-06-02 Functions: 2 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #ifndef NSPOINT_H
      39                 : #define NSPOINT_H
      40                 : 
      41                 : #include "nsCoord.h"
      42                 : #include "mozilla/gfx/BaseSize.h"
      43                 : #include "mozilla/gfx/BasePoint.h"
      44                 : #include "nsSize.h"
      45                 : 
      46                 : struct nsIntPoint;
      47                 : 
      48                 : struct nsPoint : public mozilla::gfx::BasePoint<nscoord, nsPoint> {
      49                 :   typedef mozilla::gfx::BasePoint<nscoord, nsPoint> Super;
      50                 : 
      51                 :   nsPoint() : Super() {}
      52                 :   nsPoint(const nsPoint& aPoint) : Super(aPoint) {}
      53               0 :   nsPoint(nscoord aX, nscoord aY) : Super(aX, aY) {}
      54                 : 
      55                 :   inline nsIntPoint ScaleToNearestPixels(float aXScale, float aYScale,
      56                 :                                          nscoord aAppUnitsPerPixel) const;
      57                 :   inline nsIntPoint ToNearestPixels(nscoord aAppUnitsPerPixel) const;
      58                 : 
      59                 :   // Converts this point from aFromAPP, an appunits per pixel ratio, to aToAPP.
      60                 :   inline nsPoint ConvertAppUnits(PRInt32 aFromAPP, PRInt32 aToAPP) const;
      61                 : };
      62                 : 
      63                 : struct nsIntPoint : public mozilla::gfx::BasePoint<PRInt32, nsIntPoint> {
      64                 :   typedef mozilla::gfx::BasePoint<PRInt32, nsIntPoint> Super;
      65                 : 
      66                 :   nsIntPoint() : Super() {}
      67                 :   nsIntPoint(const nsIntPoint& aPoint) : Super(aPoint) {}
      68               0 :   nsIntPoint(PRInt32 aX, PRInt32 aY) : Super(aX, aY) {}
      69                 : };
      70                 : 
      71                 : inline nsIntPoint
      72                 : nsPoint::ScaleToNearestPixels(float aXScale, float aYScale,
      73                 :                               nscoord aAppUnitsPerPixel) const
      74                 : {
      75                 :   return nsIntPoint(
      76                 :       NSToIntRoundUp(NSAppUnitsToDoublePixels(x, aAppUnitsPerPixel) * aXScale),
      77                 :       NSToIntRoundUp(NSAppUnitsToDoublePixels(y, aAppUnitsPerPixel) * aYScale));
      78                 : }
      79                 : 
      80                 : inline nsIntPoint
      81                 : nsPoint::ToNearestPixels(nscoord aAppUnitsPerPixel) const
      82                 : {
      83                 :   return ScaleToNearestPixels(1.0f, 1.0f, aAppUnitsPerPixel);
      84                 : }
      85                 : 
      86                 : inline nsPoint
      87                 : nsPoint::ConvertAppUnits(PRInt32 aFromAPP, PRInt32 aToAPP) const
      88                 : {
      89                 :   if (aFromAPP != aToAPP) {
      90                 :     nsPoint point;
      91                 :     point.x = NSToCoordRound(NSCoordScale(x, aFromAPP, aToAPP));
      92                 :     point.y = NSToCoordRound(NSCoordScale(y, aFromAPP, aToAPP));
      93                 :     return point;
      94                 :   }
      95                 :   return *this;
      96                 : }
      97                 : 
      98                 : #endif /* NSPOINT_H */

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