LCOV - code coverage report
Current view: directory - gfx/2d - PathSkia.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 77 0 0.0 %
Date: 2012-06-02 Functions: 17 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 20; 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 Corporation code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Mozilla Foundation.
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *     Matt Woodrow <mwoodrow@mozilla.com>
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * 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                 : #include "PathSkia.h"
      39                 : #include <math.h>
      40                 : #include "DrawTargetSkia.h"
      41                 : #include "Logging.h"
      42                 : #include "HelpersSkia.h"
      43                 : #include "PathHelpers.h"
      44                 : 
      45                 : namespace mozilla {
      46                 : namespace gfx {
      47                 : 
      48               0 : PathBuilderSkia::PathBuilderSkia(const Matrix& aTransform, const SkPath& aPath, FillRule aFillRule)
      49               0 :   : mPath(aPath)
      50                 : {
      51                 :   SkMatrix matrix;
      52               0 :   GfxMatrixToSkiaMatrix(aTransform, matrix);
      53               0 :   mPath.transform(matrix);
      54               0 :   SetFillRule(aFillRule);
      55               0 : }
      56                 : 
      57               0 : PathBuilderSkia::PathBuilderSkia(FillRule aFillRule)
      58                 : {
      59               0 :   SetFillRule(aFillRule);
      60               0 : }
      61                 : 
      62                 : void
      63               0 : PathBuilderSkia::SetFillRule(FillRule aFillRule)
      64                 : {
      65               0 :   mFillRule = aFillRule;
      66               0 :   if (mFillRule == FILL_WINDING) {
      67               0 :     mPath.setFillType(SkPath::kWinding_FillType);
      68                 :   } else {
      69               0 :     mPath.setFillType(SkPath::kEvenOdd_FillType);
      70                 :   }
      71               0 : }
      72                 : 
      73                 : void
      74               0 : PathBuilderSkia::MoveTo(const Point &aPoint)
      75                 : {
      76               0 :   mPath.moveTo(SkFloatToScalar(aPoint.x), SkFloatToScalar(aPoint.y));
      77               0 : }
      78                 : 
      79                 : void
      80               0 : PathBuilderSkia::LineTo(const Point &aPoint)
      81                 : {
      82               0 :   if (!mPath.countPoints()) {
      83               0 :     MoveTo(aPoint);
      84                 :   } else {
      85               0 :     mPath.lineTo(SkFloatToScalar(aPoint.x), SkFloatToScalar(aPoint.y));
      86                 :   }
      87               0 : }
      88                 : 
      89                 : void
      90               0 : PathBuilderSkia::BezierTo(const Point &aCP1,
      91                 :                           const Point &aCP2,
      92                 :                           const Point &aCP3)
      93                 : {
      94               0 :   if (!mPath.countPoints()) {
      95               0 :     MoveTo(aCP1);
      96                 :   }
      97                 :   mPath.cubicTo(SkFloatToScalar(aCP1.x), SkFloatToScalar(aCP1.y),
      98                 :                 SkFloatToScalar(aCP2.x), SkFloatToScalar(aCP2.y),
      99               0 :                 SkFloatToScalar(aCP3.x), SkFloatToScalar(aCP3.y));
     100               0 : }
     101                 : 
     102                 : void
     103               0 : PathBuilderSkia::QuadraticBezierTo(const Point &aCP1,
     104                 :                                    const Point &aCP2)
     105                 : {
     106               0 :   if (!mPath.countPoints()) {
     107               0 :     MoveTo(aCP1);
     108                 :   }
     109                 :   mPath.quadTo(SkFloatToScalar(aCP1.x), SkFloatToScalar(aCP1.y),
     110               0 :                SkFloatToScalar(aCP2.x), SkFloatToScalar(aCP2.y));
     111               0 : }
     112                 : 
     113                 : void
     114               0 : PathBuilderSkia::Close()
     115                 : {
     116               0 :   mPath.close();
     117               0 : }
     118                 : 
     119                 : void
     120               0 : PathBuilderSkia::Arc(const Point &aOrigin, float aRadius, float aStartAngle,
     121                 :                      float aEndAngle, bool aAntiClockwise)
     122                 : {
     123               0 :   ArcToBezier(this, aOrigin, aRadius, aStartAngle, aEndAngle, aAntiClockwise);
     124               0 : }
     125                 : 
     126                 : Point
     127               0 : PathBuilderSkia::CurrentPoint() const
     128                 : {
     129               0 :   int pointCount = mPath.countPoints();
     130               0 :   if (!pointCount) {
     131               0 :     return Point(0, 0);
     132                 :   }
     133               0 :   SkPoint point = mPath.getPoint(pointCount - 1);
     134               0 :   return Point(SkScalarToFloat(point.fX), SkScalarToFloat(point.fY));
     135                 : }
     136                 : 
     137                 : TemporaryRef<Path>
     138               0 : PathBuilderSkia::Finish()
     139                 : {
     140               0 :   RefPtr<PathSkia> path = new PathSkia(mPath, mFillRule);
     141               0 :   return path;
     142                 : }
     143                 : 
     144                 : TemporaryRef<PathBuilder>
     145               0 : PathSkia::CopyToBuilder(FillRule aFillRule) const
     146                 : {
     147               0 :   return TransformedCopyToBuilder(Matrix(), aFillRule);
     148                 : }
     149                 : 
     150                 : TemporaryRef<PathBuilder>
     151               0 : PathSkia::TransformedCopyToBuilder(const Matrix &aTransform, FillRule aFillRule) const
     152                 : {
     153               0 :   RefPtr<PathBuilderSkia> builder = new PathBuilderSkia(aTransform, mPath, aFillRule);
     154               0 :   return builder;
     155                 : }
     156                 : 
     157                 : bool
     158               0 : PathSkia::ContainsPoint(const Point &aPoint, const Matrix &aTransform) const
     159                 : {
     160               0 :   Matrix inverse = aTransform;
     161               0 :   inverse.Invert();
     162               0 :   Point transformed = inverse * aPoint;
     163                 : 
     164               0 :   Rect bounds = GetBounds(aTransform);
     165                 : 
     166               0 :   if (aPoint.x < bounds.x || aPoint.y < bounds.y ||
     167               0 :       aPoint.x > bounds.XMost() || aPoint.y > bounds.YMost()) {
     168               0 :     return false;
     169                 :   }
     170                 : 
     171               0 :   SkRegion pointRect;
     172                 :   pointRect.setRect(SkFloatToScalar(transformed.x - 1), SkFloatToScalar(transformed.y - 1), 
     173               0 :                     SkFloatToScalar(transformed.x + 1), SkFloatToScalar(transformed.y + 1));
     174                 : 
     175               0 :   SkRegion pathRegion;
     176                 :   
     177               0 :   return pathRegion.setPath(mPath, pointRect);
     178                 : }
     179                 : 
     180               0 : static Rect SkRectToRect(const SkRect& aBounds)
     181                 : {
     182                 :   return Rect(SkScalarToFloat(aBounds.fLeft),
     183                 :               SkScalarToFloat(aBounds.fTop),
     184                 :               SkScalarToFloat(aBounds.fRight - aBounds.fLeft),
     185               0 :               SkScalarToFloat(aBounds.fBottom - aBounds.fTop));
     186                 : }
     187                 : 
     188                 : Rect
     189               0 : PathSkia::GetBounds(const Matrix &aTransform) const
     190                 : {
     191               0 :   Rect bounds = SkRectToRect(mPath.getBounds());
     192               0 :   return aTransform.TransformBounds(bounds);
     193                 : }
     194                 : 
     195                 : Rect
     196               0 : PathSkia::GetStrokedBounds(const StrokeOptions &aStrokeOptions,
     197                 :                            const Matrix &aTransform) const
     198                 : {
     199               0 :   SkPaint paint;
     200               0 :   StrokeOptionsToPaint(paint, aStrokeOptions);
     201                 :   
     202               0 :   SkPath result;
     203               0 :   paint.getFillPath(mPath, &result);
     204                 : 
     205               0 :   Rect bounds = SkRectToRect(result.getBounds());
     206               0 :   return aTransform.TransformBounds(bounds);
     207                 : }
     208                 : 
     209                 : }
     210                 : }

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