1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef ScrollTypes_h 27 #define ScrollTypes_h 28 29 namespace WebCore { 30 31 enum ScrollDirection { 32 ScrollUp, 33 ScrollDown, 34 ScrollLeft, 35 ScrollRight 36 }; 37 38 enum ScrollLogicalDirection { 39 ScrollBlockDirectionBackward, 40 ScrollBlockDirectionForward, 41 ScrollInlineDirectionBackward, 42 ScrollInlineDirectionForward 43 }; 44 45 logicalToPhysical(ScrollLogicalDirection direction,bool isVertical,bool isFlipped)46 inline ScrollDirection logicalToPhysical(ScrollLogicalDirection direction, bool isVertical, bool isFlipped) 47 { 48 switch (direction) { 49 case ScrollBlockDirectionBackward: { 50 if (isVertical) { 51 if (!isFlipped) 52 return ScrollUp; 53 return ScrollDown; 54 } else { 55 if (!isFlipped) 56 return ScrollLeft; 57 return ScrollRight; 58 } 59 break; 60 } 61 case ScrollBlockDirectionForward: { 62 if (isVertical) { 63 if (!isFlipped) 64 return ScrollDown; 65 return ScrollUp; 66 } else { 67 if (!isFlipped) 68 return ScrollRight; 69 return ScrollLeft; 70 } 71 break; 72 } 73 case ScrollInlineDirectionBackward: { 74 if (isVertical) { 75 if (!isFlipped) 76 return ScrollLeft; 77 return ScrollRight; 78 } else { 79 if (!isFlipped) 80 return ScrollUp; 81 return ScrollDown; 82 } 83 break; 84 } 85 case ScrollInlineDirectionForward: { 86 if (isVertical) { 87 if (!isFlipped) 88 return ScrollRight; 89 return ScrollLeft; 90 } else { 91 if (!isFlipped) 92 return ScrollDown; 93 return ScrollUp; 94 } 95 break; 96 } 97 default: 98 ASSERT_NOT_REACHED(); 99 break; 100 } 101 return ScrollUp; 102 } 103 104 enum ScrollGranularity { 105 ScrollByLine, 106 ScrollByPage, 107 ScrollByDocument, 108 ScrollByPixel 109 }; 110 111 enum ScrollElasticity { 112 ScrollElasticityAutomatic, 113 ScrollElasticityNone, 114 ScrollElasticityAllowed 115 }; 116 117 enum ScrollbarOrientation { HorizontalScrollbar, VerticalScrollbar }; 118 119 enum ScrollbarMode { ScrollbarAuto, ScrollbarAlwaysOff, ScrollbarAlwaysOn }; 120 121 enum ScrollbarControlSize { RegularScrollbar, SmallScrollbar }; 122 123 typedef unsigned ScrollbarControlState; 124 125 enum ScrollbarControlStateMask { 126 ActiveScrollbarState = 1, 127 EnabledScrollbarState = 1 << 1, 128 PressedScrollbarState = 1 << 2 129 }; 130 131 enum ScrollbarPart { 132 NoPart = 0, 133 BackButtonStartPart = 1, 134 ForwardButtonStartPart = 1 << 1, 135 BackTrackPart = 1 << 2, 136 ThumbPart = 1 << 3, 137 ForwardTrackPart = 1 << 4, 138 BackButtonEndPart = 1 << 5, 139 ForwardButtonEndPart = 1 << 6, 140 ScrollbarBGPart = 1 << 7, 141 TrackBGPart = 1 << 8, 142 AllParts = 0xffffffff 143 }; 144 145 enum ScrollbarButtonsPlacement { 146 ScrollbarButtonsNone, 147 ScrollbarButtonsSingle, 148 ScrollbarButtonsDoubleStart, 149 ScrollbarButtonsDoubleEnd, 150 ScrollbarButtonsDoubleBoth 151 }; 152 153 typedef unsigned ScrollbarControlPartMask; 154 155 } 156 157 #endif 158