コード例 #1
0
 //=============================================================
 /// <summary>
 /// recalculate margin
 /// </summary>
 /// <param name="margin">marin side</param>
 /// <param name="cbWidth">width of containging block</param>
 /// <returns></returns>
 float RecalculateMargin(CssLength margin, float cbWidth)
 {
     //www.w3.org/TR/CSS2/box.html#margin-properties
     if (margin.IsAuto)
     {
         return(0);
     }
     return(CssLengthExt.ConvertToPx(margin, cbWidth, this));
 }
コード例 #2
0
        /// <summary>
        /// recalculate padding
        /// </summary>
        /// <param name="padding"></param>
        /// <param name="cbWidth"></param>
        /// <returns></returns>
        float RecalculatePadding(CssLength padding, float cbWidth)
        {
            //www.w3.org/TR/CSS2/box.html#padding-properties

            if (padding.IsAuto)
            {
                return(0);
            }

            return(CssLengthExt.ConvertToPx(padding, cbWidth, this));
        }
コード例 #3
0
        public void ReEvaluateFont(IHtmlTextService txtsx, float parentFontSize)
        {
            _resolvedFont1 = txtsx.ResolveFont(_reqFont = _myspec.GetFont(parentFontSize));

            if (_myspec.WordSpacing.IsNormalWordSpacing)
            {
                //use normal spacing
                _actualWordSpacing = _resolvedFont1.WhitespaceWidth;//use pre-rounding (int) or exact scaled value ???
            }
            else
            {
                //TODO: review here,***
                //additional to original whitespacing or REPLACE with the new value
                _actualWordSpacing = _resolvedFont1.WhitespaceWidth +//use pre-rounding (int) or exact scaled value ???
                                     CssLengthExt.ConvertToPx(_myspec.WordSpacing, 1, this);
            }
        }
コード例 #4
0
        /// <summary>
        /// evaluate computed value
        /// </summary>
        internal void ReEvaluateComputedValues(IHtmlTextService iFonts, CssBox containingBlock)
        {
            //depend on parent
            //1. fonts
            if (this.ParentBox != null)
            {
                if (this.ParentBox.ResolvedFont == null)
                {
                    //TODO: review this ... WHY?

                    //SIZE in point unit or pixel???
                    ReEvaluateFont(iFonts, containingBlock._resolvedFont1.SizeInPoints);
                }
                else
                {
                    ReEvaluateFont(iFonts, this.ParentBox._resolvedFont1.SizeInPoints);
                }


                //2. actual word spacing
                //_actualWordSpacing = this.NoEms(this.InitSpec.LineHeight);
                //3. font size
                //len = len.ConvertEmToPoints(parentBox.ActualFont.SizeInPoints);
            }
            else
            {
                ReEvaluateFont(iFonts, containingBlock._resolvedFont1.SizeInPoints);
                //_actualFont = this.Spec.GetFont(containingBlock.Spec);
            }

            //-----------------------------------------------------------------------
            float cbWidth            = containingBlock.VisualWidth;
            int   tmpBoxCompactFlags = _boxCompactFlags;

            _boxCompactFlags |= BoxFlags.LAY_EVAL_COMPUTE_VALUES;
            //www.w3.org/TR/CSS2/box.html#margin-properties
            //w3c: margin applies to all elements except elements table display type
            //other than table-caption,table and inline table
            CssDisplay cssDisplay = this.CssDisplay;
            BoxSpec    spec       = _myspec;

            switch (cssDisplay)
            {
            case CssDisplay.None:
            {
                return;
            }

            case CssDisplay.TableCell:
            case CssDisplay.TableColumn:
            case CssDisplay.TableColumnGroup:
            case CssDisplay.TableFooterGroup:
            case CssDisplay.TableHeaderGroup:
            case CssDisplay.TableRow:
            case CssDisplay.TableRowGroup:
            {
                //no margin
            }
            break;

            default:
            {
                //if (__aa_dbugId == 5)
                //{
                //    int a = spec.__aa_dbugId;

                //}

                _actualMarginLeft   = RecalculateMargin(spec.MarginLeft, cbWidth);
                _actualMarginTop    = RecalculateMargin(spec.MarginTop, cbWidth);
                _actualMarginRight  = RecalculateMargin(spec.MarginRight, cbWidth);
                _actualMarginBottom = RecalculateMargin(spec.MarginBottom, cbWidth);
            }
            break;
            }
            //www.w3.org/TR/CSS2/box.html#padding-properties
            switch (cssDisplay)
            {
            case CssDisplay.TableRowGroup:
            case CssDisplay.TableHeaderGroup:
            case CssDisplay.TableFooterGroup:
            case CssDisplay.TableRow:
            case CssDisplay.TableColumnGroup:
            case CssDisplay.TableColumn:
            {
                //no padding
            }
            break;

            default:
            {
                //-----------------------------------------------------------------------
                //padding
                _actualPaddingLeft   = RecalculatePadding(spec.PaddingLeft, cbWidth);
                _actualPaddingTop    = RecalculatePadding(spec.PaddingTop, cbWidth);
                _actualPaddingRight  = RecalculatePadding(spec.PaddingRight, cbWidth);
                _actualPaddingBottom = RecalculatePadding(spec.PaddingBottom, cbWidth);
            }
            break;
            }

            //-----------------------------------------------------------------------
            //borders
            float a1, a2, a3, a4;

            _actualBorderLeftWidth   = a1 = (spec.BorderLeftStyle == CssBorderStyle.None) ? 0 : CssLengthExt.GetActualBorderWidth(spec.BorderLeftWidth, this);
            _actualBorderTopWidth    = a2 = (spec.BorderTopStyle == CssBorderStyle.None) ? 0 : CssLengthExt.GetActualBorderWidth(spec.BorderTopWidth, this);
            _actualBorderRightWidth  = a3 = (spec.BorderRightStyle == CssBorderStyle.None) ? 0 : CssLengthExt.GetActualBorderWidth(spec.BorderRightWidth, this);
            _actualBorderBottomWidth = a4 = (spec.BorderBottomStyle == CssBorderStyle.None) ? 0 : CssLengthExt.GetActualBorderWidth(spec.BorderBottomWidth, this);
            //---------------------------------------------------------------------------

            _borderLeftVisible  = a1 > 0 && spec.BorderLeftStyle >= CssBorderStyle.Visible;
            _borderTopVisible   = a2 > 0 && spec.BorderTopStyle >= CssBorderStyle.Visible;
            _borderRightVisible = a3 > 0 && spec.BorderRightStyle >= CssBorderStyle.Visible;
            _borderBottomVisble = a4 > 0 && spec.BorderBottomStyle >= CssBorderStyle.Visible;
            //extension ***
            if (a1 + a2 + a3 + a4 > 0)
            {
                //css 2.1 border can't be nagative values

                tmpBoxCompactFlags |= BoxFlags.HAS_SOME_VISIBLE_BORDER;
            }
            else
            {
                tmpBoxCompactFlags &= ~BoxFlags.HAS_SOME_VISIBLE_BORDER;
            }
            //---------------------------------------------------------------------------

            _actualCornerNE = a1 = CssLengthExt.ConvertToPx(spec.CornerNERadius, 0, this);
            _actualCornerNW = a2 = CssLengthExt.ConvertToPx(spec.CornerNWRadius, 0, this);
            _actualCornerSE = a3 = CssLengthExt.ConvertToPx(spec.CornerSERadius, 0, this);
            _actualCornerSW = a4 = CssLengthExt.ConvertToPx(spec.CornerSWRadius, 0, this);
            if ((a1 + a2 + a3 + a4) > 0)
            {
                //evaluate
                tmpBoxCompactFlags |= BoxFlags.HAS_ROUND_CORNER;
            }
            else
            {
                tmpBoxCompactFlags &= ~BoxFlags.HAS_ROUND_CORNER;
            }
            //---------------------------------------------------------------------------
            //evaluate bg

            if (BackgroundGradient != Color.Transparent ||
                (ActualBackgroundColor.A > 0))

            {
                tmpBoxCompactFlags |= BoxFlags.HAS_VISIBLE_BG;
            }
            else
            {
                tmpBoxCompactFlags &= ~BoxFlags.HAS_VISIBLE_BG;
            }



            if (spec.WordSpacing.IsNormalWordSpacing)
            {
                _actualWordSpacing = iFonts.MeasureWhitespace(_reqFont);
            }
            else
            {
                _actualWordSpacing = iFonts.MeasureWhitespace(_reqFont)
                                     + CssLengthExt.ConvertToPx(spec.WordSpacing, 1, this);
            }
            //----------------------------------------------
            _boxCompactFlags = tmpBoxCompactFlags;
            //----------------------------------------------

            //text indent
            _actualTextIndent = CssLengthExt.ConvertToPx(spec.TextIndent, containingBlock.VisualWidth, this);
            _actualBorderSpacingHorizontal = spec.BorderSpacingHorizontal.Number;
            _actualBorderSpacingVertical   = spec.BorderSpacingVertical.Number;
            //-----------------------
            //_actualLineHeight = 0.9f * CssValueParser.ConvertToPx(LineHeight, this.GetEmHeight(), this);
            //expected width expected height
            //_expectedWidth = CssValueParser.ParseLength(Width, cbWidth, this);
            //_expectedHight = CssValueParser.ParseLength(Height, containingBlock.SizeHeight, this);
            ////----------------------------------------------


            //www.w3.org/TR/CSS2/visudet.html#line-height
            //line height,
            //percent value of line height :
            // is refer to font size of the element itself
            //if (this.LineHeight.Number > 0)
            //{
            //    _actualLineHeight = .9f * CssValueParser.ConvertToPx(LineHeight, this.GetEmHeight(), this);
            //}
            //else
            //{
            //    _actualLineHeight = .9f * (this.GetEmHeight());
            //}


            if (_myspec.HasBoxShadow)
            {
                //temp fix here
                //TODO: review move shadow to external decoration object/box
                if (_decorator == null)
                {
                    _decorator = new CssBoxDecorator();
                }
                _decorator.HBoxShadowOffset = (int)CssLengthExt.ConvertToPx(spec.BoxShadowHOffset, 0, this);
                _decorator.VBoxShadowOffset = (int)CssLengthExt.ConvertToPx(spec.BoxShadowVOffset, 0, this);
                _decorator.Color            = spec.BoxShadowColor;
            }
            else
            {
                _decorator = null;
            }
        }