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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #ifndef CORE_FXCRT_CSS_CFX_CSS_H_
      8 #define CORE_FXCRT_CSS_CFX_CSS_H_
      9 
     10 #include "core/fxcrt/cfx_seekablestreamproxy.h"
     11 #include "core/fxge/fx_dib.h"
     12 
     13 enum CFX_CSSVALUETYPE {
     14   CFX_CSSVALUETYPE_Primitive = 1 << 0,
     15   CFX_CSSVALUETYPE_List = 1 << 1,
     16   CFX_CSSVALUETYPE_Shorthand = 1 << 2,
     17   // Note the values below this comment must be > 0x0F so we can mask the above.
     18   CFX_CSSVALUETYPE_MaybeNumber = 1 << 4,
     19   CFX_CSSVALUETYPE_MaybeEnum = 1 << 5,
     20   CFX_CSSVALUETYPE_MaybeString = 1 << 7,
     21   CFX_CSSVALUETYPE_MaybeColor = 1 << 8
     22 };
     23 
     24 enum class CFX_CSSPrimitiveType : uint8_t {
     25   Unknown = 0,
     26   Number,
     27   String,
     28   RGB,
     29   Enum,
     30   Function,
     31   List,
     32 };
     33 
     34 enum class CFX_CSSPropertyValue : uint8_t {
     35   Bolder = 0,
     36   None,
     37   Dot,
     38   Sub,
     39   Top,
     40   Right,
     41   Normal,
     42   Auto,
     43   Text,
     44   XSmall,
     45   Thin,
     46   Small,
     47   Bottom,
     48   Underline,
     49   Double,
     50   Lighter,
     51   Oblique,
     52   Super,
     53   Center,
     54   XxLarge,
     55   Smaller,
     56   Baseline,
     57   Thick,
     58   Justify,
     59   Middle,
     60   Medium,
     61   ListItem,
     62   XxSmall,
     63   Bold,
     64   SmallCaps,
     65   Inline,
     66   Overline,
     67   TextBottom,
     68   Larger,
     69   InlineTable,
     70   InlineBlock,
     71   Blink,
     72   Block,
     73   Italic,
     74   LineThrough,
     75   XLarge,
     76   Large,
     77   Left,
     78   TextTop,
     79   LAST_MARKER
     80 };
     81 
     82 enum class CFX_CSSProperty : uint8_t {
     83   BorderLeft = 0,
     84   Top,
     85   Margin,
     86   TextIndent,
     87   Right,
     88   PaddingLeft,
     89   MarginLeft,
     90   Border,
     91   BorderTop,
     92   Bottom,
     93   PaddingRight,
     94   BorderBottom,
     95   FontFamily,
     96   FontWeight,
     97   Color,
     98   LetterSpacing,
     99   TextAlign,
    100   BorderRightWidth,
    101   VerticalAlign,
    102   PaddingTop,
    103   FontVariant,
    104   BorderWidth,
    105   BorderBottomWidth,
    106   BorderRight,
    107   FontSize,
    108   BorderSpacing,
    109   FontStyle,
    110   Font,
    111   LineHeight,
    112   MarginRight,
    113   BorderLeftWidth,
    114   Display,
    115   PaddingBottom,
    116   BorderTopWidth,
    117   WordSpacing,
    118   Left,
    119   TextDecoration,
    120   Padding,
    121   MarginBottom,
    122   MarginTop,
    123   LAST_MARKER
    124 };
    125 
    126 enum class CFX_CSSSelectorType : uint8_t { Element = 0, Descendant };
    127 
    128 enum class CFX_CSSLengthUnit : uint8_t {
    129   Auto,
    130   None,
    131   Normal,
    132   Point,
    133   Percent,
    134 };
    135 
    136 enum class CFX_CSSDisplay : uint8_t {
    137   None,
    138   ListItem,
    139   Block,
    140   Inline,
    141   InlineBlock,
    142   InlineTable,
    143 };
    144 
    145 enum class CFX_CSSFontStyle : uint8_t {
    146   Normal,
    147   Italic,
    148 };
    149 
    150 enum class CFX_CSSTextAlign : uint8_t {
    151   Left,
    152   Right,
    153   Center,
    154   Justify,
    155   JustifyAll,
    156 };
    157 
    158 enum class CFX_CSSVerticalAlign : uint8_t {
    159   Baseline,
    160   Sub,
    161   Super,
    162   Top,
    163   TextTop,
    164   Middle,
    165   Bottom,
    166   TextBottom,
    167   Number,
    168 };
    169 
    170 enum class CFX_CSSFontVariant : uint8_t {
    171   Normal,
    172   SmallCaps,
    173 };
    174 
    175 enum CFX_CSSTEXTDECORATION {
    176   CFX_CSSTEXTDECORATION_None = 0,
    177   CFX_CSSTEXTDECORATION_Underline = 1 << 0,
    178   CFX_CSSTEXTDECORATION_Overline = 1 << 1,
    179   CFX_CSSTEXTDECORATION_LineThrough = 1 << 2,
    180   CFX_CSSTEXTDECORATION_Blink = 1 << 3,
    181   CFX_CSSTEXTDECORATION_Double = 1 << 4,
    182 };
    183 
    184 class CFX_CSSLength {
    185  public:
    186   CFX_CSSLength() {}
    187 
    188   explicit CFX_CSSLength(CFX_CSSLengthUnit eUnit) : m_unit(eUnit) {}
    189 
    190   CFX_CSSLength(CFX_CSSLengthUnit eUnit, float fValue)
    191       : m_unit(eUnit), m_fValue(fValue) {}
    192 
    193   CFX_CSSLength& Set(CFX_CSSLengthUnit eUnit) {
    194     m_unit = eUnit;
    195     return *this;
    196   }
    197 
    198   CFX_CSSLength& Set(CFX_CSSLengthUnit eUnit, float fValue) {
    199     m_unit = eUnit;
    200     m_fValue = fValue;
    201     return *this;
    202   }
    203 
    204   CFX_CSSLengthUnit GetUnit() const { return m_unit; }
    205 
    206   float GetValue() const { return m_fValue; }
    207   bool NonZero() const { return static_cast<int>(m_fValue) != 0; }
    208 
    209  private:
    210   CFX_CSSLengthUnit m_unit;
    211   float m_fValue;
    212 };
    213 
    214 class CFX_CSSRect {
    215  public:
    216   CFX_CSSRect() {}
    217 
    218   CFX_CSSRect(CFX_CSSLengthUnit eUnit, float val)
    219       : left(eUnit, val),
    220         top(eUnit, val),
    221         right(eUnit, val),
    222         bottom(eUnit, val) {}
    223 
    224   CFX_CSSRect& Set(CFX_CSSLengthUnit eUnit) {
    225     left.Set(eUnit);
    226     top.Set(eUnit);
    227     right.Set(eUnit);
    228     bottom.Set(eUnit);
    229     return *this;
    230   }
    231   CFX_CSSRect& Set(CFX_CSSLengthUnit eUnit, float fValue) {
    232     left.Set(eUnit, fValue);
    233     top.Set(eUnit, fValue);
    234     right.Set(eUnit, fValue);
    235     bottom.Set(eUnit, fValue);
    236     return *this;
    237   }
    238 
    239   CFX_CSSLength left, top, right, bottom;
    240 };
    241 
    242 #endif  // CORE_FXCRT_CSS_CFX_CSS_H_
    243