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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /src/gui/text/qcssparser.cpp | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'src/gui/text/qcssparser.cpp')
-rw-r--r-- | src/gui/text/qcssparser.cpp | 2808 |
1 files changed, 2808 insertions, 0 deletions
diff --git a/src/gui/text/qcssparser.cpp b/src/gui/text/qcssparser.cpp new file mode 100644 index 0000000..db1e781 --- /dev/null +++ b/src/gui/text/qcssparser.cpp @@ -0,0 +1,2808 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qcssparser_p.h" + +#include <qdebug.h> +#include <qcolor.h> +#include <qfont.h> +#include <qfileinfo.h> +#include <qfontmetrics.h> +#include <qbrush.h> +#include <qimagereader.h> + +#ifndef QT_NO_CSSPARSER + +QT_BEGIN_NAMESPACE + +#include "qcssscanner.cpp" + +using namespace QCss; + +const char *Scanner::tokenName(QCss::TokenType t) +{ + switch (t) { + case NONE: return "NONE"; + case S: return "S"; + case CDO: return "CDO"; + case CDC: return "CDC"; + case INCLUDES: return "INCLUDES"; + case DASHMATCH: return "DASHMATCH"; + case LBRACE: return "LBRACE"; + case PLUS: return "PLUS"; + case GREATER: return "GREATER"; + case COMMA: return "COMMA"; + case STRING: return "STRING"; + case INVALID: return "INVALID"; + case IDENT: return "IDENT"; + case HASH: return "HASH"; + case ATKEYWORD_SYM: return "ATKEYWORD_SYM"; + case EXCLAMATION_SYM: return "EXCLAMATION_SYM"; + case LENGTH: return "LENGTH"; + case PERCENTAGE: return "PERCENTAGE"; + case NUMBER: return "NUMBER"; + case FUNCTION: return "FUNCTION"; + case COLON: return "COLON"; + case SEMICOLON: return "SEMICOLON"; + case RBRACE: return "RBRACE"; + case SLASH: return "SLASH"; + case MINUS: return "MINUS"; + case DOT: return "DOT"; + case STAR: return "STAR"; + case LBRACKET: return "LBRACKET"; + case RBRACKET: return "RBRACKET"; + case EQUAL: return "EQUAL"; + case LPAREN: return "LPAREN"; + case RPAREN: return "RPAREN"; + case OR: return "OR"; + } + return ""; +} + +struct QCssKnownValue +{ + const char *name; + quint64 id; +}; + +static const QCssKnownValue properties[NumProperties - 1] = { + { "-qt-background-role", QtBackgroundRole }, + { "-qt-block-indent", QtBlockIndent }, + { "-qt-list-indent", QtListIndent }, + { "-qt-paragraph-type", QtParagraphType }, + { "-qt-style-features", QtStyleFeatures }, + { "-qt-table-type", QtTableType }, + { "-qt-user-state", QtUserState }, + { "alternate-background-color", QtAlternateBackground }, + { "background", Background }, + { "background-attachment", BackgroundAttachment }, + { "background-clip", BackgroundClip }, + { "background-color", BackgroundColor }, + { "background-image", BackgroundImage }, + { "background-origin", BackgroundOrigin }, + { "background-position", BackgroundPosition }, + { "background-repeat", BackgroundRepeat }, + { "border", Border }, + { "border-bottom", BorderBottom }, + { "border-bottom-color", BorderBottomColor }, + { "border-bottom-left-radius", BorderBottomLeftRadius }, + { "border-bottom-right-radius", BorderBottomRightRadius }, + { "border-bottom-style", BorderBottomStyle }, + { "border-bottom-width", BorderBottomWidth }, + { "border-color", BorderColor }, + { "border-image", BorderImage }, + { "border-left", BorderLeft }, + { "border-left-color", BorderLeftColor }, + { "border-left-style", BorderLeftStyle }, + { "border-left-width", BorderLeftWidth }, + { "border-radius", BorderRadius }, + { "border-right", BorderRight }, + { "border-right-color", BorderRightColor }, + { "border-right-style", BorderRightStyle }, + { "border-right-width", BorderRightWidth }, + { "border-style", BorderStyles }, + { "border-top", BorderTop }, + { "border-top-color", BorderTopColor }, + { "border-top-left-radius", BorderTopLeftRadius }, + { "border-top-right-radius", BorderTopRightRadius }, + { "border-top-style", BorderTopStyle }, + { "border-top-width", BorderTopWidth }, + { "border-width", BorderWidth }, + { "bottom", Bottom }, + { "color", Color }, + { "float", Float }, + { "font", Font }, + { "font-family", FontFamily }, + { "font-size", FontSize }, + { "font-style", FontStyle }, + { "font-variant", FontVariant }, + { "font-weight", FontWeight }, + { "height", Height }, + { "image", QtImage }, + { "image-position", QtImageAlignment }, + { "left", Left }, + { "list-style", ListStyle }, + { "list-style-type", ListStyleType }, + { "margin" , Margin }, + { "margin-bottom", MarginBottom }, + { "margin-left", MarginLeft }, + { "margin-right", MarginRight }, + { "margin-top", MarginTop }, + { "max-height", MaximumHeight }, + { "max-width", MaximumWidth }, + { "min-height", MinimumHeight }, + { "min-width", MinimumWidth }, + { "outline", Outline }, + { "outline-bottom-left-radius", OutlineBottomLeftRadius }, + { "outline-bottom-right-radius", OutlineBottomRightRadius }, + { "outline-color", OutlineColor }, + { "outline-offset", OutlineOffset }, + { "outline-radius", OutlineRadius }, + { "outline-style", OutlineStyle }, + { "outline-top-left-radius", OutlineTopLeftRadius }, + { "outline-top-right-radius", OutlineTopRightRadius }, + { "outline-width", OutlineWidth }, + { "padding", Padding }, + { "padding-bottom", PaddingBottom }, + { "padding-left", PaddingLeft }, + { "padding-right", PaddingRight }, + { "padding-top", PaddingTop }, + { "page-break-after", PageBreakAfter }, + { "page-break-before", PageBreakBefore }, + { "position", Position }, + { "right", Right }, + { "selection-background-color", QtSelectionBackground }, + { "selection-color", QtSelectionForeground }, + { "spacing", QtSpacing }, + { "subcontrol-origin", QtOrigin }, + { "subcontrol-position", QtPosition }, + { "text-align", TextAlignment }, + { "text-decoration", TextDecoration }, + { "text-indent", TextIndent }, + { "text-transform", TextTransform }, + { "text-underline-style", TextUnderlineStyle }, + { "top", Top }, + { "vertical-align", VerticalAlignment }, + { "white-space", Whitespace }, + { "width", Width } +}; + +static const QCssKnownValue values[NumKnownValues - 1] = { + { "active", Value_Active }, + { "alternate-base", Value_AlternateBase }, + { "always", Value_Always }, + { "auto", Value_Auto }, + { "base", Value_Base }, + { "bold", Value_Bold }, + { "bottom", Value_Bottom }, + { "bright-text", Value_BrightText }, + { "button", Value_Button }, + { "button-text", Value_ButtonText }, + { "center", Value_Center }, + { "circle", Value_Circle }, + { "dark", Value_Dark }, + { "dashed", Value_Dashed }, + { "decimal", Value_Decimal }, + { "disabled", Value_Disabled }, + { "disc", Value_Disc }, + { "dot-dash", Value_DotDash }, + { "dot-dot-dash", Value_DotDotDash }, + { "dotted", Value_Dotted }, + { "double", Value_Double }, + { "groove", Value_Groove }, + { "highlight", Value_Highlight }, + { "highlighted-text", Value_HighlightedText }, + { "inset", Value_Inset }, + { "italic", Value_Italic }, + { "large", Value_Large }, + { "left", Value_Left }, + { "light", Value_Light }, + { "line-through", Value_LineThrough }, + { "link", Value_Link }, + { "link-visited", Value_LinkVisited }, + { "lower-alpha", Value_LowerAlpha }, + { "lowercase", Value_Lowercase }, + { "medium", Value_Medium }, + { "mid", Value_Mid }, + { "middle", Value_Middle }, + { "midlight", Value_Midlight }, + { "native", Value_Native }, + { "none", Value_None }, + { "normal", Value_Normal }, + { "nowrap", Value_NoWrap }, + { "oblique", Value_Oblique }, + { "off", Value_Off }, + { "on", Value_On }, + { "outset", Value_Outset }, + { "overline", Value_Overline }, + { "pre", Value_Pre }, + { "pre-wrap", Value_PreWrap }, + { "ridge", Value_Ridge }, + { "right", Value_Right }, + { "selected", Value_Selected }, + { "shadow", Value_Shadow }, + { "small" , Value_Small }, + { "small-caps", Value_SmallCaps }, + { "solid", Value_Solid }, + { "square", Value_Square }, + { "sub", Value_Sub }, + { "super", Value_Super }, + { "text", Value_Text }, + { "top", Value_Top }, + { "transparent", Value_Transparent }, + { "underline", Value_Underline }, + { "upper-alpha", Value_UpperAlpha }, + { "uppercase", Value_Uppercase }, + { "wave", Value_Wave }, + { "window", Value_Window }, + { "window-text", Value_WindowText }, + { "x-large", Value_XLarge }, + { "xx-large", Value_XXLarge } +}; + +QString Value::toString() const +{ + static int indexOfId[NumKnownValues - 1]; + static bool hasCachedIndexes = false; + + if (type == KnownIdentifier) { + if (!hasCachedIndexes) { + for (int i = 0; i < NumKnownValues - 1; ++i) + indexOfId[values[i].id] = i; + + hasCachedIndexes = true; + } + + return QLatin1String(values[indexOfId[variant.toInt()]].name); + } else { + return variant.toString(); + } +} + +static const QCssKnownValue pseudos[NumPseudos - 1] = { + { "active", PseudoClass_Active }, + { "adjoins-item", PseudoClass_Item }, + { "alternate", PseudoClass_Alternate }, + { "bottom", PseudoClass_Bottom }, + { "checked", PseudoClass_Checked }, + { "closable", PseudoClass_Closable }, + { "closed", PseudoClass_Closed }, + { "default", PseudoClass_Default }, + { "disabled", PseudoClass_Disabled }, + { "edit-focus", PseudoClass_EditFocus }, + { "editable", PseudoClass_Editable }, + { "enabled", PseudoClass_Enabled }, + { "exclusive", PseudoClass_Exclusive }, + { "first", PseudoClass_First }, + { "flat", PseudoClass_Flat }, + { "floatable", PseudoClass_Floatable }, + { "focus", PseudoClass_Focus }, + { "has-children", PseudoClass_Children }, + { "has-siblings", PseudoClass_Sibling }, + { "horizontal", PseudoClass_Horizontal }, + { "hover", PseudoClass_Hover }, + { "indeterminate" , PseudoClass_Indeterminate }, + { "last", PseudoClass_Last }, + { "left", PseudoClass_Left }, + { "maximized", PseudoClass_Maximized }, + { "middle", PseudoClass_Middle }, + { "minimized", PseudoClass_Minimized }, + { "movable", PseudoClass_Movable }, + { "next-selected", PseudoClass_NextSelected }, + { "no-frame", PseudoClass_Frameless }, + { "non-exclusive", PseudoClass_NonExclusive }, + { "off", PseudoClass_Unchecked }, + { "on", PseudoClass_Checked }, + { "only-one", PseudoClass_OnlyOne }, + { "open", PseudoClass_Open }, + { "pressed", PseudoClass_Pressed }, + { "previous-selected", PseudoClass_PreviousSelected }, + { "read-only", PseudoClass_ReadOnly }, + { "right", PseudoClass_Right }, + { "selected", PseudoClass_Selected }, + { "top", PseudoClass_Top }, + { "unchecked" , PseudoClass_Unchecked }, + { "vertical", PseudoClass_Vertical }, + { "window", PseudoClass_Window } +}; + +static const QCssKnownValue origins[NumKnownOrigins - 1] = { + { "border", Origin_Border }, + { "content", Origin_Content }, + { "margin", Origin_Margin }, // not in css + { "padding", Origin_Padding } +}; + +static const QCssKnownValue repeats[NumKnownRepeats - 1] = { + { "no-repeat", Repeat_None }, + { "repeat-x", Repeat_X }, + { "repeat-xy", Repeat_XY }, + { "repeat-y", Repeat_Y } +}; + +static const QCssKnownValue tileModes[NumKnownTileModes - 1] = { + { "repeat", TileMode_Repeat }, + { "round", TileMode_Round }, + { "stretch", TileMode_Stretch }, +}; + +static const QCssKnownValue positions[NumKnownPositionModes - 1] = { + { "absolute", PositionMode_Absolute }, + { "fixed", PositionMode_Fixed }, + { "relative", PositionMode_Relative }, + { "static", PositionMode_Static } +}; + +static const QCssKnownValue attachments[NumKnownAttachments - 1] = { + { "fixed", Attachment_Fixed }, + { "scroll", Attachment_Scroll } +}; + +static const QCssKnownValue styleFeatures[NumKnownStyleFeatures - 1] = { + { "background-color", StyleFeature_BackgroundColor }, + { "background-gradient", StyleFeature_BackgroundGradient }, + { "none", StyleFeature_None } +}; + +static bool operator<(const QString &name, const QCssKnownValue &prop) +{ + return QString::compare(name, QLatin1String(prop.name), Qt::CaseInsensitive) < 0; +} + +static bool operator<(const QCssKnownValue &prop, const QString &name) +{ + return QString::compare(QLatin1String(prop.name), name, Qt::CaseInsensitive) < 0; +} + +static quint64 findKnownValue(const QString &name, const QCssKnownValue *start, int numValues) +{ + const QCssKnownValue *end = &start[numValues - 1]; + const QCssKnownValue *prop = qBinaryFind(start, end, name); + if (prop == end) + return 0; + return prop->id; +} + +/////////////////////////////////////////////////////////////////////////////// +// Value Extractor +ValueExtractor::ValueExtractor(const QVector<Declaration> &decls, const QPalette &pal) +: declarations(decls), adjustment(0), fontExtracted(false), pal(pal) +{ +} + +LengthData ValueExtractor::lengthValue(const Value& v) +{ + QString s = v.variant.toString(); + s.reserve(s.length()); + LengthData data; + data.unit = LengthData::None; + if (s.endsWith(QLatin1String("px"), Qt::CaseInsensitive)) + data.unit = LengthData::Px; + else if (s.endsWith(QLatin1String("ex"), Qt::CaseInsensitive)) + data.unit = LengthData::Ex; + else if (s.endsWith(QLatin1String("em"), Qt::CaseInsensitive)) + data.unit = LengthData::Em; + + if (data.unit != LengthData::None) + s.chop(2); + + bool ok; + data.number = s.toDouble(&ok); + if (!ok) + data.number = 0; + return data; +} + +static int lengthValueFromData(const LengthData& data, const QFont& f) +{ + if (data.unit == LengthData::Ex) + return qRound(QFontMetrics(f).xHeight() * data.number); + else if (data.unit == LengthData::Em) + return qRound(QFontMetrics(f).height() * data.number); + return qRound(data.number); +} + +int ValueExtractor::lengthValue(const Declaration &decl) +{ + if (decl.d->parsed.isValid()) + return lengthValueFromData(qvariant_cast<LengthData>(decl.d->parsed), f); + if (decl.d->values.count() < 1) + return 0; + LengthData data = lengthValue(decl.d->values.at(0)); + decl.d->parsed = qVariantFromValue<LengthData>(data); + return lengthValueFromData(data,f); +} + +void ValueExtractor::lengthValues(const Declaration &decl, int *m) +{ + if (decl.d->parsed.isValid()) { + QList<QVariant> v = decl.d->parsed.toList(); + for (int i = 0; i < 4; i++) + m[i] = lengthValueFromData(qvariant_cast<LengthData>(v.at(i)), f); + return; + } + + LengthData datas[4]; + int i; + for (i = 0; i < qMin(decl.d->values.count(), 4); i++) + datas[i] = lengthValue(decl.d->values[i]); + + if (i == 0) { + LengthData zero = {0.0, LengthData::None}; + datas[0] = datas[1] = datas[2] = datas[3] = zero; + } else if (i == 1) { + datas[3] = datas[2] = datas[1] = datas[0]; + } else if (i == 2) { + datas[2] = datas[0]; + datas[3] = datas[1]; + } else if (i == 3) { + datas[3] = datas[1]; + } + + QList<QVariant> v; + for (i = 0; i < 4; i++) { + v += qVariantFromValue<LengthData>(datas[i]); + m[i] = lengthValueFromData(datas[i], f); + } + decl.d->parsed = v; +} + +bool ValueExtractor::extractGeometry(int *w, int *h, int *minw, int *minh, int *maxw, int *maxh) +{ + extractFont(); + bool hit = false; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case Width: *w = lengthValue(decl); break; + case Height: *h = lengthValue(decl); break; + case MinimumWidth: *minw = lengthValue(decl); break; + case MinimumHeight: *minh = lengthValue(decl); break; + case MaximumWidth: *maxw = lengthValue(decl); break; + case MaximumHeight: *maxh = lengthValue(decl); break; + default: continue; + } + hit = true; + } + + return hit; +} + +bool ValueExtractor::extractPosition(int *left, int *top, int *right, int *bottom, QCss::Origin *origin, + Qt::Alignment *position, QCss::PositionMode *mode, Qt::Alignment *textAlignment) +{ + extractFont(); + bool hit = false; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case Left: *left = lengthValue(decl); break; + case Top: *top = lengthValue(decl); break; + case Right: *right = lengthValue(decl); break; + case Bottom: *bottom = lengthValue(decl); break; + case QtOrigin: *origin = decl.originValue(); break; + case QtPosition: *position = decl.alignmentValue(); break; + case TextAlignment: *textAlignment = decl.alignmentValue(); break; + case Position: *mode = decl.positionValue(); break; + default: continue; + } + hit = true; + } + + return hit; +} + +bool ValueExtractor::extractBox(int *margins, int *paddings, int *spacing) +{ + extractFont(); + bool hit = false; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case PaddingLeft: paddings[LeftEdge] = lengthValue(decl); break; + case PaddingRight: paddings[RightEdge] = lengthValue(decl); break; + case PaddingTop: paddings[TopEdge] = lengthValue(decl); break; + case PaddingBottom: paddings[BottomEdge] = lengthValue(decl); break; + case Padding: lengthValues(decl, paddings); break; + + case MarginLeft: margins[LeftEdge] = lengthValue(decl); break; + case MarginRight: margins[RightEdge] = lengthValue(decl); break; + case MarginTop: margins[TopEdge] = lengthValue(decl); break; + case MarginBottom: margins[BottomEdge] = lengthValue(decl); break; + case Margin: lengthValues(decl, margins); break; + case QtSpacing: if (spacing) *spacing = lengthValue(decl); break; + + default: continue; + } + hit = true; + } + + return hit; +} + +int ValueExtractor::extractStyleFeatures() +{ + int features = StyleFeature_None; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + if (decl.d->propertyId == QtStyleFeatures) + features = decl.styleFeaturesValue(); + } + return features; +} + +QSize ValueExtractor::sizeValue(const Declaration &decl) +{ + if (decl.d->parsed.isValid()) { + QList<QVariant> v = decl.d->parsed.toList(); + return QSize(lengthValueFromData(qvariant_cast<LengthData>(v.at(0)), f), + lengthValueFromData(qvariant_cast<LengthData>(v.at(1)), f)); + } + + LengthData x[2] = { {0, LengthData::None }, {0, LengthData::None} }; + if (decl.d->values.count() > 0) + x[0] = lengthValue(decl.d->values.at(0)); + if (decl.d->values.count() > 1) + x[1] = lengthValue(decl.d->values.at(1)); + else + x[1] = x[0]; + QList<QVariant> v; + v << qVariantFromValue<LengthData>(x[0]) << qVariantFromValue<LengthData>(x[1]); + decl.d->parsed = v; + return QSize(lengthValueFromData(x[0], f), lengthValueFromData(x[1], f)); +} + +void ValueExtractor::sizeValues(const Declaration &decl, QSize *radii) +{ + radii[0] = sizeValue(decl); + for (int i = 1; i < 4; i++) + radii[i] = radii[0]; +} + +bool ValueExtractor::extractBorder(int *borders, QBrush *colors, BorderStyle *styles, + QSize *radii) +{ + extractFont(); + bool hit = false; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case BorderLeftWidth: borders[LeftEdge] = lengthValue(decl); break; + case BorderRightWidth: borders[RightEdge] = lengthValue(decl); break; + case BorderTopWidth: borders[TopEdge] = lengthValue(decl); break; + case BorderBottomWidth: borders[BottomEdge] = lengthValue(decl); break; + case BorderWidth: lengthValues(decl, borders); break; + + case BorderLeftColor: colors[LeftEdge] = decl.brushValue(pal); break; + case BorderRightColor: colors[RightEdge] = decl.brushValue(pal); break; + case BorderTopColor: colors[TopEdge] = decl.brushValue(pal); break; + case BorderBottomColor: colors[BottomEdge] = decl.brushValue(pal); break; + case BorderColor: decl.brushValues(colors, pal); break; + + case BorderTopStyle: styles[TopEdge] = decl.styleValue(); break; + case BorderBottomStyle: styles[BottomEdge] = decl.styleValue(); break; + case BorderLeftStyle: styles[LeftEdge] = decl.styleValue(); break; + case BorderRightStyle: styles[RightEdge] = decl.styleValue(); break; + case BorderStyles: decl.styleValues(styles); break; + + case BorderTopLeftRadius: radii[0] = sizeValue(decl); break; + case BorderTopRightRadius: radii[1] = sizeValue(decl); break; + case BorderBottomLeftRadius: radii[2] = sizeValue(decl); break; + case BorderBottomRightRadius: radii[3] = sizeValue(decl); break; + case BorderRadius: sizeValues(decl, radii); break; + + case BorderLeft: + borderValue(decl, &borders[LeftEdge], &styles[LeftEdge], &colors[LeftEdge]); + break; + case BorderTop: + borderValue(decl, &borders[TopEdge], &styles[TopEdge], &colors[TopEdge]); + break; + case BorderRight: + borderValue(decl, &borders[RightEdge], &styles[RightEdge], &colors[RightEdge]); + break; + case BorderBottom: + borderValue(decl, &borders[BottomEdge], &styles[BottomEdge], &colors[BottomEdge]); + break; + case Border: + borderValue(decl, &borders[LeftEdge], &styles[LeftEdge], &colors[LeftEdge]); + borders[TopEdge] = borders[RightEdge] = borders[BottomEdge] = borders[LeftEdge]; + styles[TopEdge] = styles[RightEdge] = styles[BottomEdge] = styles[LeftEdge]; + colors[TopEdge] = colors[RightEdge] = colors[BottomEdge] = colors[LeftEdge]; + break; + + default: continue; + } + hit = true; + } + + return hit; +} + +bool ValueExtractor::extractOutline(int *borders, QBrush *colors, BorderStyle *styles, + QSize *radii, int *offsets) +{ + extractFont(); + bool hit = false; + for (int i = 0; i < declarations.count(); i++) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case OutlineWidth: lengthValues(decl, borders); break; + case OutlineColor: decl.brushValues(colors, pal); break; + case OutlineStyle: decl.styleValues(styles); break; + + case OutlineTopLeftRadius: radii[0] = sizeValue(decl); break; + case OutlineTopRightRadius: radii[1] = sizeValue(decl); break; + case OutlineBottomLeftRadius: radii[2] = sizeValue(decl); break; + case OutlineBottomRightRadius: radii[3] = sizeValue(decl); break; + case OutlineRadius: sizeValues(decl, radii); break; + case OutlineOffset: lengthValues(decl, offsets); break; + + case Outline: + borderValue(decl, &borders[LeftEdge], &styles[LeftEdge], &colors[LeftEdge]); + borders[TopEdge] = borders[RightEdge] = borders[BottomEdge] = borders[LeftEdge]; + styles[TopEdge] = styles[RightEdge] = styles[BottomEdge] = styles[LeftEdge]; + colors[TopEdge] = colors[RightEdge] = colors[BottomEdge] = colors[LeftEdge]; + break; + + default: continue; + } + hit = true; + } + + return hit; +} + +static Qt::Alignment parseAlignment(const Value *values, int count) +{ + Qt::Alignment a[2] = { 0, 0 }; + for (int i = 0; i < qMin(2, count); i++) { + if (values[i].type != Value::KnownIdentifier) + break; + switch (values[i].variant.toInt()) { + case Value_Left: a[i] = Qt::AlignLeft; break; + case Value_Right: a[i] = Qt::AlignRight; break; + case Value_Top: a[i] = Qt::AlignTop; break; + case Value_Bottom: a[i] = Qt::AlignBottom; break; + case Value_Center: a[i] = Qt::AlignCenter; break; + default: break; + } + } + + if (a[0] == Qt::AlignCenter && a[1] != 0 && a[1] != Qt::AlignCenter) + a[0] = (a[1] == Qt::AlignLeft || a[1] == Qt::AlignRight) ? Qt::AlignVCenter : Qt::AlignHCenter; + if ((a[1] == 0 || a[1] == Qt::AlignCenter) && a[0] != Qt::AlignCenter) + a[1] = (a[0] == Qt::AlignLeft || a[0] == Qt::AlignRight) ? Qt::AlignVCenter : Qt::AlignHCenter; + return a[0] | a[1]; +} + +static ColorData parseColorValue(Value v) +{ + if (v.type == Value::Identifier || v.type == Value::String) { + v.variant.convert(QVariant::Color); + v.type = Value::Color; + } + + if (v.type == Value::Color) + return qvariant_cast<QColor>(v.variant); + + if (v.type == Value::KnownIdentifier && v.variant.toInt() == Value_Transparent) + return QColor(Qt::transparent); + + if (v.type != Value::Function) + return ColorData(); + + QStringList lst = v.variant.toStringList(); + if (lst.count() != 2) + return ColorData(); + + if ((lst.at(0).compare(QLatin1String("palette"), Qt::CaseInsensitive)) == 0) { + int role = findKnownValue(lst.at(1).trimmed(), values, NumKnownValues); + if (role >= Value_FirstColorRole && role <= Value_LastColorRole) + return (QPalette::ColorRole)(role-Value_FirstColorRole); + + return ColorData(); + } + + bool rgb = lst.at(0).startsWith(QLatin1String("rgb")); + + Parser p(lst.at(1)); + if (!p.testExpr()) + return ColorData(); + + QVector<Value> colorDigits; + if (!p.parseExpr(&colorDigits)) + return ColorData(); + + for (int i = 0; i < qMin(colorDigits.count(), 7); i += 2) { + if (colorDigits.at(i).type == Value::Percentage) { + colorDigits[i].variant = colorDigits.at(i).variant.toDouble() * 255. / 100.; + colorDigits[i].type = Value::Number; + } else if (colorDigits.at(i).type != Value::Number) { + return ColorData(); + } + } + + int v1 = colorDigits.at(0).variant.toInt(); + int v2 = colorDigits.at(2).variant.toInt(); + int v3 = colorDigits.at(4).variant.toInt(); + int alpha = colorDigits.count() >= 7 ? colorDigits.at(6).variant.toInt() : 255; + + return rgb ? QColor::fromRgb(v1, v2, v3, alpha) + : QColor::fromHsv(v1, v2, v3, alpha); +} + +static QColor colorFromData(const ColorData& c, const QPalette &pal) +{ + if (c.type == ColorData::Color) { + return c.color; + } else if (c.type == ColorData::Role) { + return pal.color(c.role); + } + return QColor(); +} + +static BrushData parseBrushValue(const Value &v, const QPalette &pal) +{ + ColorData c = parseColorValue(v); + if (c.type == ColorData::Color) { + return QBrush(c.color); + } else if (c.type == ColorData::Role) { + return c.role; + } + + if (v.type != Value::Function) + return BrushData(); + + QStringList lst = v.variant.toStringList(); + if (lst.count() != 2) + return BrushData(); + + QStringList gradFuncs; + gradFuncs << QLatin1String("qlineargradient") << QLatin1String("qradialgradient") << QLatin1String("qconicalgradient") << QLatin1String("qgradient"); + int gradType = -1; + + if ((gradType = gradFuncs.indexOf(lst.at(0).toLower())) == -1) + return BrushData(); + + QHash<QString, qreal> vars; + QVector<QGradientStop> stops; + + int spread = -1; + QStringList spreads; + spreads << QLatin1String("pad") << QLatin1String("reflect") << QLatin1String("repeat"); + + bool dependsOnThePalette = false; + Parser parser(lst.at(1)); + while (parser.hasNext()) { + parser.skipSpace(); + if (!parser.test(IDENT)) + return BrushData(); + QString attr = parser.lexem(); + parser.skipSpace(); + if (!parser.test(COLON)) + return BrushData(); + parser.skipSpace(); + if (attr.compare(QLatin1String("stop"), Qt::CaseInsensitive) == 0) { + Value stop, color; + parser.next(); + if (!parser.parseTerm(&stop)) return BrushData(); + parser.skipSpace(); + parser.next(); + if (!parser.parseTerm(&color)) return BrushData(); + ColorData cd = parseColorValue(color); + if(cd.type == ColorData::Role) + dependsOnThePalette = true; + stops.append(QGradientStop(stop.variant.toDouble(), colorFromData(cd, pal))); + } else { + parser.next(); + Value value; + parser.parseTerm(&value); + if (attr.compare(QLatin1String("spread"), Qt::CaseInsensitive) == 0) { + spread = spreads.indexOf(value.variant.toString()); + } else { + vars[attr] = value.variant.toString().toDouble(); + } + } + parser.skipSpace(); + parser.test(COMMA); + } + + if (gradType == 0) { + QLinearGradient lg(vars.value(QLatin1String("x1")), vars.value(QLatin1String("y1")), + vars.value(QLatin1String("x2")), vars.value(QLatin1String("y2"))); + lg.setCoordinateMode(QGradient::ObjectBoundingMode); + lg.setStops(stops); + if (spread != -1) + lg.setSpread(QGradient::Spread(spread)); + BrushData bd = QBrush(lg); + if (dependsOnThePalette) + bd.type = BrushData::DependsOnThePalette; + return bd; + } + + if (gradType == 1) { + QRadialGradient rg(vars.value(QLatin1String("cx")), vars.value(QLatin1String("cy")), + vars.value(QLatin1String("radius")), vars.value(QLatin1String("fx")), + vars.value(QLatin1String("fy"))); + rg.setCoordinateMode(QGradient::ObjectBoundingMode); + rg.setStops(stops); + if (spread != -1) + rg.setSpread(QGradient::Spread(spread)); + BrushData bd = QBrush(rg); + if (dependsOnThePalette) + bd.type = BrushData::DependsOnThePalette; + return bd; + } + + if (gradType == 2) { + QConicalGradient cg(vars.value(QLatin1String("cx")), vars.value(QLatin1String("cy")), + vars.value(QLatin1String("angle"))); + cg.setCoordinateMode(QGradient::ObjectBoundingMode); + cg.setStops(stops); + if (spread != -1) + cg.setSpread(QGradient::Spread(spread)); + BrushData bd = QBrush(cg); + if (dependsOnThePalette) + bd.type = BrushData::DependsOnThePalette; + return bd; + } + + return BrushData(); +} + +static QBrush brushFromData(const BrushData& c, const QPalette &pal) +{ + if (c.type == BrushData::Role) { + return pal.color(c.role); + } else { + return c.brush; + } +} + +static BorderStyle parseStyleValue(Value v) +{ + if (v.type == Value::KnownIdentifier) { + switch (v.variant.toInt()) { + case Value_None: + return BorderStyle_None; + case Value_Dotted: + return BorderStyle_Dotted; + case Value_Dashed: + return BorderStyle_Dashed; + case Value_Solid: + return BorderStyle_Solid; + case Value_Double: + return BorderStyle_Double; + case Value_DotDash: + return BorderStyle_DotDash; + case Value_DotDotDash: + return BorderStyle_DotDotDash; + case Value_Groove: + return BorderStyle_Groove; + case Value_Ridge: + return BorderStyle_Ridge; + case Value_Inset: + return BorderStyle_Inset; + case Value_Outset: + return BorderStyle_Outset; + case Value_Native: + return BorderStyle_Native; + default: + break; + } + } + + return BorderStyle_Unknown; +} + +void ValueExtractor::borderValue(const Declaration &decl, int *width, QCss::BorderStyle *style, QBrush *color) +{ + if (decl.d->parsed.isValid()) { + BorderData data = qvariant_cast<BorderData>(decl.d->parsed); + *width = lengthValueFromData(data.width, f); + *style = data.style; + *color = brushFromData(data.color, pal); + return; + } + + *width = 0; + *style = BorderStyle_None; + *color = QColor(); + + if (decl.d->values.isEmpty()) + return; + + BorderData data; + data.width.number = 0; + data.width.unit = LengthData::None; + data.style = BorderStyle_None; + + int i = 0; + if (decl.d->values.at(i).type == Value::Length || decl.d->values.at(i).type == Value::Number) { + data.width = lengthValue(decl.d->values.at(i)); + *width = lengthValueFromData(data.width, f); + if (++i >= decl.d->values.count()) { + decl.d->parsed = qVariantFromValue<BorderData>(data); + return; + } + } + + data.style = parseStyleValue(decl.d->values.at(i)); + if (data.style != BorderStyle_Unknown) { + *style = data.style; + if (++i >= decl.d->values.count()) { + decl.d->parsed = qVariantFromValue<BorderData>(data); + return; + } + } else { + data.style = BorderStyle_None; + } + + data.color = parseBrushValue(decl.d->values.at(i), pal); + *color = brushFromData(data.color, pal); + if (data.color.type != BrushData::DependsOnThePalette) + decl.d->parsed = qVariantFromValue<BorderData>(data); +} + +static void parseShorthandBackgroundProperty(const QVector<Value> &values, BrushData *brush, QString *image, Repeat *repeat, Qt::Alignment *alignment, const QPalette &pal) +{ + *brush = BrushData(); + *image = QString(); + *repeat = Repeat_XY; + *alignment = Qt::AlignTop | Qt::AlignLeft; + + for (int i = 0; i < values.count(); ++i) { + const Value &v = values.at(i); + if (v.type == Value::Uri) { + *image = v.variant.toString(); + continue; + } else if (v.type == Value::KnownIdentifier && v.variant.toInt() == Value_None) { + *image = QString(); + continue; + } else if (v.type == Value::KnownIdentifier && v.variant.toInt() == Value_Transparent) { + *brush = QBrush(Qt::transparent); + } + + Repeat repeatAttempt = static_cast<Repeat>(findKnownValue(v.variant.toString(), + repeats, NumKnownRepeats)); + if (repeatAttempt != Repeat_Unknown) { + *repeat = repeatAttempt; + continue; + } + + if (v.type == Value::KnownIdentifier) { + const int start = i; + int count = 1; + if (i < values.count() - 1 + && values.at(i + 1).type == Value::KnownIdentifier) { + ++i; + ++count; + } + Qt::Alignment a = parseAlignment(values.constData() + start, count); + if (int(a) != 0) { + *alignment = a; + continue; + } + i -= count - 1; + } + + *brush = parseBrushValue(v, pal); + } +} + +bool ValueExtractor::extractBackground(QBrush *brush, QString *image, Repeat *repeat, + Qt::Alignment *alignment, Origin *origin, Attachment *attachment, + Origin *clip) +{ + bool hit = false; + for (int i = 0; i < declarations.count(); ++i) { + const Declaration &decl = declarations.at(i); + if (decl.d->values.isEmpty()) + continue; + const Value &val = decl.d->values.at(0); + switch (decl.d->propertyId) { + case BackgroundColor: + *brush = decl.brushValue(); + break; + case BackgroundImage: + if (val.type == Value::Uri) + *image = val.variant.toString(); + break; + case BackgroundRepeat: + if (decl.d->parsed.isValid()) { + *repeat = static_cast<Repeat>(decl.d->parsed.toInt()); + } else { + *repeat = static_cast<Repeat>(findKnownValue(val.variant.toString(), + repeats, NumKnownRepeats)); + decl.d->parsed = *repeat; + } + break; + case BackgroundPosition: + *alignment = decl.alignmentValue(); + break; + case BackgroundOrigin: + *origin = decl.originValue(); + break; + case BackgroundClip: + *clip = decl.originValue(); + break; + case Background: + if (decl.d->parsed.isValid()) { + BackgroundData data = qvariant_cast<BackgroundData>(decl.d->parsed); + *brush = brushFromData(data.brush, pal); + *image = data.image; + *repeat = data.repeat; + *alignment = data.alignment; + } else { + BrushData brushData; + parseShorthandBackgroundProperty(decl.d->values, &brushData, image, repeat, alignment, pal); + *brush = brushFromData(brushData, pal); + if (brushData.type != BrushData::DependsOnThePalette) { +#if defined Q_CC_MSVC && _MSC_VER <= 1300 + BackgroundData data; + data.brush = brushData; + data.image = *image; + data.repeat = *repeat; + data.alignment = *alignment; +#else + BackgroundData data = { brushData, *image, *repeat, *alignment }; +#endif + decl.d->parsed = qVariantFromValue<BackgroundData>(data); + } + } + break; + case BackgroundAttachment: + *attachment = decl.attachmentValue(); + break; + default: continue; + } + hit = true; + } + return hit; +} + +static bool setFontSizeFromValue(Value value, QFont *font, int *fontSizeAdjustment) +{ + if (value.type == Value::KnownIdentifier) { + bool valid = true; + switch (value.variant.toInt()) { + case Value_Small: *fontSizeAdjustment = -1; break; + case Value_Medium: *fontSizeAdjustment = 0; break; + case Value_Large: *fontSizeAdjustment = 1; break; + case Value_XLarge: *fontSizeAdjustment = 2; break; + case Value_XXLarge: *fontSizeAdjustment = 3; break; + default: valid = false; break; + } + return valid; + } + if (value.type != Value::Length) + return false; + + bool valid = false; + QString s = value.variant.toString(); + if (s.endsWith(QLatin1String("pt"), Qt::CaseInsensitive)) { + s.chop(2); + value.variant = s; + if (value.variant.convert(QVariant::Double)) { + font->setPointSizeF(value.variant.toDouble()); + valid = true; + } + } else if (s.endsWith(QLatin1String("px"), Qt::CaseInsensitive)) { + s.chop(2); + value.variant = s; + if (value.variant.convert(QVariant::Int)) { + font->setPixelSize(value.variant.toInt()); + valid = true; + } + } + return valid; +} + +static bool setFontStyleFromValue(const Value &value, QFont *font) +{ + if (value.type != Value::KnownIdentifier) + return false ; + switch (value.variant.toInt()) { + case Value_Normal: font->setStyle(QFont::StyleNormal); return true; + case Value_Italic: font->setStyle(QFont::StyleItalic); return true; + case Value_Oblique: font->setStyle(QFont::StyleOblique); return true; + default: break; + } + return false; +} + +static bool setFontWeightFromValue(const Value &value, QFont *font) +{ + if (value.type == Value::KnownIdentifier) { + switch (value.variant.toInt()) { + case Value_Normal: font->setWeight(QFont::Normal); return true; + case Value_Bold: font->setWeight(QFont::Bold); return true; + default: break; + } + return false; + } + if (value.type != Value::Number) + return false; + font->setWeight(qMin(value.variant.toInt() / 8, 99)); + return true; +} + +static bool setFontFamilyFromValues(const QVector<Value> &values, QFont *font) +{ + QString family; + for (int i = 0; i < values.count(); ++i) { + const Value &v = values.at(i); + if (v.type == Value::TermOperatorComma) + break; + const QString str = v.variant.toString(); + if (str.isEmpty()) + break; + family += str; + family += QLatin1Char(' '); + } + family = family.simplified(); + if (family.isEmpty()) + return false; + font->setFamily(family); + return true; +} + +static void setTextDecorationFromValues(const QVector<Value> &values, QFont *font) +{ + for (int i = 0; i < values.count(); ++i) { + if (values.at(i).type != Value::KnownIdentifier) + continue; + switch (values.at(i).variant.toInt()) { + case Value_Underline: font->setUnderline(true); break; + case Value_Overline: font->setOverline(true); break; + case Value_LineThrough: font->setStrikeOut(true); break; + case Value_None: + font->setUnderline(false); + font->setOverline(false); + font->setStrikeOut(false); + break; + default: break; + } + } +} + +static void parseShorthandFontProperty(const QVector<Value> &values, QFont *font, int *fontSizeAdjustment) +{ + font->setStyle(QFont::StyleNormal); + font->setWeight(QFont::Normal); + *fontSizeAdjustment = 0; + + int i = 0; + while (i < values.count()) { + if (setFontStyleFromValue(values.at(i), font) + || setFontWeightFromValue(values.at(i), font)) + ++i; + else + break; + } + + if (i < values.count()) { + setFontSizeFromValue(values.at(i), font, fontSizeAdjustment); + ++i; + } + + if (i < values.count()) { + QString fam = values.at(i).variant.toString(); + if (!fam.isEmpty()) + font->setFamily(fam); + } +} + +static void setFontVariantFromValue(const Value &value, QFont *font) +{ + if (value.type == Value::KnownIdentifier) { + switch (value.variant.toInt()) { + case Value_Normal: font->setCapitalization(QFont::MixedCase); break; + case Value_SmallCaps: font->setCapitalization(QFont::SmallCaps); break; + default: break; + } + } +} + +static void setTextTransformFromValue(const Value &value, QFont *font) +{ + if (value.type == Value::KnownIdentifier) { + switch (value.variant.toInt()) { + case Value_None: font->setCapitalization(QFont::MixedCase); break; + case Value_Uppercase: font->setCapitalization(QFont::AllUppercase); break; + case Value_Lowercase: font->setCapitalization(QFont::AllLowercase); break; + default: break; + } + } +} + +bool ValueExtractor::extractFont(QFont *font, int *fontSizeAdjustment) +{ + if (fontExtracted) { + *font = f; + *fontSizeAdjustment = adjustment; + return fontExtracted == 1; + } + + bool hit = false; + for (int i = 0; i < declarations.count(); ++i) { + const Declaration &decl = declarations.at(i); + if (decl.d->values.isEmpty()) + continue; + const Value &val = decl.d->values.at(0); + switch (decl.d->propertyId) { + case FontSize: setFontSizeFromValue(val, font, fontSizeAdjustment); break; + case FontStyle: setFontStyleFromValue(val, font); break; + case FontWeight: setFontWeightFromValue(val, font); break; + case FontFamily: setFontFamilyFromValues(decl.d->values, font); break; + case TextDecoration: setTextDecorationFromValues(decl.d->values, font); break; + case Font: parseShorthandFontProperty(decl.d->values, font, fontSizeAdjustment); break; + case FontVariant: setFontVariantFromValue(val, font); break; + case TextTransform: setTextTransformFromValue(val, font); break; + default: continue; + } + hit = true; + } + + f = *font; + adjustment = *fontSizeAdjustment; + fontExtracted = hit ? 1 : 2; + return hit; +} + +bool ValueExtractor::extractPalette(QBrush *fg, QBrush *sfg, QBrush *sbg, QBrush *abg) +{ + bool hit = false; + for (int i = 0; i < declarations.count(); ++i) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case Color: *fg = decl.brushValue(pal); break; + case QtSelectionForeground: *sfg = decl.brushValue(pal); break; + case QtSelectionBackground: *sbg = decl.brushValue(pal); break; + case QtAlternateBackground: *abg = decl.brushValue(pal); break; + default: continue; + } + hit = true; + } + return hit; +} + +void ValueExtractor::extractFont() +{ + if (fontExtracted) + return; + int dummy = -255; + extractFont(&f, &dummy); +} + +bool ValueExtractor::extractImage(QIcon *icon, Qt::Alignment *a, QSize *size) +{ + bool hit = false; + for (int i = 0; i < declarations.count(); ++i) { + const Declaration &decl = declarations.at(i); + switch (decl.d->propertyId) { + case QtImage: + *icon = decl.iconValue(); + if (decl.d->values.count() > 0 && decl.d->values.at(0).type == Value::Uri) { + // try to pull just the size from the image... + QImageReader imageReader(decl.d->values.at(0).variant.toString()); + if ((*size = imageReader.size()).isNull()) { + // but we'll have to load the whole image if the + // format doesn't support just reading the size + *size = imageReader.read().size(); + } + } + break; + case QtImageAlignment: *a = decl.alignmentValue(); break; + default: continue; + } + hit = true; + } + return hit; +} + +/////////////////////////////////////////////////////////////////////////////// +// Declaration +QColor Declaration::colorValue(const QPalette &pal) const +{ + if (d->values.count() != 1) + return QColor(); + + if (d->parsed.isValid()) { + if (d->parsed.type() == QVariant::Color) + return qvariant_cast<QColor>(d->parsed); + if (d->parsed.type() == QVariant::Int) + return pal.color((QPalette::ColorRole)(d->parsed.toInt())); + } + + ColorData color = parseColorValue(d->values.at(0)); + if(color.type == ColorData::Role) { + d->parsed = qVariantFromValue<int>(color.role); + return pal.color((QPalette::ColorRole)(color.role)); + } else { + d->parsed = qVariantFromValue<QColor>(color.color); + return color.color; + } +} + +QBrush Declaration::brushValue(const QPalette &pal) const +{ + if (d->values.count() != 1) + return QBrush(); + + if (d->parsed.isValid()) { + if (d->parsed.type() == QVariant::Brush) + return qvariant_cast<QBrush>(d->parsed); + if (d->parsed.type() == QVariant::Int) + return pal.color((QPalette::ColorRole)(d->parsed.toInt())); + } + + BrushData data = parseBrushValue(d->values.at(0), pal); + + if(data.type == BrushData::Role) { + d->parsed = qVariantFromValue<int>(data.role); + return pal.color((QPalette::ColorRole)(data.role)); + } else { + if (data.type != BrushData::DependsOnThePalette) + d->parsed = qVariantFromValue<QBrush>(data.brush); + return data.brush; + } +} + +void Declaration::brushValues(QBrush *c, const QPalette &pal) const +{ + int needParse = 0x1f; // bits 0..3 say if we should parse the corresponding value. + // the bit 4 say we need to update d->parsed + int i = 0; + if (d->parsed.isValid()) { + needParse = 0; + QList<QVariant> v = d->parsed.toList(); + for (i = 0; i < qMin(v.count(), 4); i++) { + if (v.at(i).type() == QVariant::Brush) { + c[i] = qvariant_cast<QBrush>(v.at(i)); + } else if (v.at(i).type() == QVariant::Int) { + c[i] = pal.color((QPalette::ColorRole)(v.at(i).toInt())); + } else { + needParse |= (1<<i); + } + } + } + if (needParse != 0) { + QList<QVariant> v; + for (i = 0; i < qMin(d->values.count(), 4); i++) { + if (!(needParse & (1<<i))) + continue; + BrushData data = parseBrushValue(d->values.at(i), pal); + if(data.type == BrushData::Role) { + v += qVariantFromValue<int>(data.role); + c[i] = pal.color((QPalette::ColorRole)(data.role)); + } else { + if (data.type != BrushData::DependsOnThePalette) { + v += qVariantFromValue<QBrush>(data.brush); + } else { + v += QVariant(); + } + c[i] = data.brush; + } + } + if (needParse & 0x10) + d->parsed = v; + } + if (i == 0) c[0] = c[1] = c[2] = c[3] = QBrush(); + else if (i == 1) c[3] = c[2] = c[1] = c[0]; + else if (i == 2) c[2] = c[0], c[3] = c[1]; + else if (i == 3) c[3] = c[1]; +} + +bool Declaration::realValue(qreal *real, const char *unit) const +{ + if (d->values.count() != 1) + return false; + const Value &v = d->values.at(0); + if (unit && v.type != Value::Length) + return false; + QString s = v.variant.toString(); + if (unit) { + if (!s.endsWith(QLatin1String(unit), Qt::CaseInsensitive)) + return false; + s.chop(qstrlen(unit)); + } + bool ok = false; + qreal val = s.toDouble(&ok); + if (ok) + *real = val; + return ok; +} + +static bool intValueHelper(const Value &v, int *i, const char *unit) +{ + if (unit && v.type != Value::Length) + return false; + QString s = v.variant.toString(); + if (unit) { + if (!s.endsWith(QLatin1String(unit), Qt::CaseInsensitive)) + return false; + s.chop(qstrlen(unit)); + } + bool ok = false; + int val = s.toInt(&ok); + if (ok) + *i = val; + return ok; +} + +bool Declaration::intValue(int *i, const char *unit) const +{ + if (d->values.count() != 1) + return false; + return intValueHelper(d->values.at(0), i, unit); +} + +QSize Declaration::sizeValue() const +{ + if (d->parsed.isValid()) + return qvariant_cast<QSize>(d->parsed); + + int x[2] = { 0, 0 }; + if (d->values.count() > 0) + intValueHelper(d->values.at(0), &x[0], "px"); + if (d->values.count() > 1) + intValueHelper(d->values.at(1), &x[1], "px"); + else + x[1] = x[0]; + QSize size(x[0], x[1]); + d->parsed = qVariantFromValue<QSize>(size); + return size; +} + +QRect Declaration::rectValue() const +{ + if (d->values.count() != 1) + return QRect(); + + if (d->parsed.isValid()) + return qvariant_cast<QRect>(d->parsed); + + const Value &v = d->values.at(0); + if (v.type != Value::Function) + return QRect(); + QStringList func = v.variant.toStringList(); + if (func.count() != 2 || func.at(0).compare(QLatin1String("rect")) != 0) + return QRect(); + QStringList args = func[1].split(QLatin1String(" "), QString::SkipEmptyParts); + if (args.count() != 4) + return QRect(); + QRect rect(args[0].toInt(), args[1].toInt(), args[2].toInt(), args[3].toInt()); + d->parsed = qVariantFromValue<QRect>(rect); + return rect; +} + +void Declaration::colorValues(QColor *c, const QPalette &pal) const +{ + int i; + if (d->parsed.isValid()) { + QList<QVariant> v = d->parsed.toList(); + for (i = 0; i < qMin(d->values.count(), 4); i++) { + if (v.at(i).type() == QVariant::Color) { + c[i] = qvariant_cast<QColor>(v.at(i)); + } else { + c[i] = pal.color((QPalette::ColorRole)(v.at(i).toInt())); + } + } + } else { + QList<QVariant> v; + for (i = 0; i < qMin(d->values.count(), 4); i++) { + ColorData color = parseColorValue(d->values.at(i)); + if(color.type == ColorData::Role) { + v += qVariantFromValue<int>(color.role); + c[i] = pal.color((QPalette::ColorRole)(color.role)); + } else { + v += qVariantFromValue<QColor>(color.color); + c[i] = color.color; + } + } + d->parsed = v; + } + + if (i == 0) c[0] = c[1] = c[2] = c[3] = QColor(); + else if (i == 1) c[3] = c[2] = c[1] = c[0]; + else if (i == 2) c[2] = c[0], c[3] = c[1]; + else if (i == 3) c[3] = c[1]; +} + +BorderStyle Declaration::styleValue() const +{ + if (d->values.count() != 1) + return BorderStyle_None; + return parseStyleValue(d->values.at(0)); +} + +void Declaration::styleValues(BorderStyle *s) const +{ + int i; + for (i = 0; i < qMin(d->values.count(), 4); i++) + s[i] = parseStyleValue(d->values.at(i)); + if (i == 0) s[0] = s[1] = s[2] = s[3] = BorderStyle_None; + else if (i == 1) s[3] = s[2] = s[1] = s[0]; + else if (i == 2) s[2] = s[0], s[3] = s[1]; + else if (i == 3) s[3] = s[1]; +} + +Repeat Declaration::repeatValue() const +{ + if (d->parsed.isValid()) + return static_cast<Repeat>(d->parsed.toInt()); + if (d->values.count() != 1) + return Repeat_Unknown; + int v = findKnownValue(d->values.at(0).variant.toString(), + repeats, NumKnownRepeats); + d->parsed = v; + return static_cast<Repeat>(v); +} + +Origin Declaration::originValue() const +{ + if (d->parsed.isValid()) + return static_cast<Origin>(d->parsed.toInt()); + if (d->values.count() != 1) + return Origin_Unknown; + int v = findKnownValue(d->values.at(0).variant.toString(), + origins, NumKnownOrigins); + d->parsed = v; + return static_cast<Origin>(v); +} + +PositionMode Declaration::positionValue() const +{ + if (d->parsed.isValid()) + return static_cast<PositionMode>(d->parsed.toInt()); + if (d->values.count() != 1) + return PositionMode_Unknown; + int v = findKnownValue(d->values.at(0).variant.toString(), + positions, NumKnownPositionModes); + d->parsed = v; + return static_cast<PositionMode>(v); +} + +Attachment Declaration::attachmentValue() const +{ + if (d->parsed.isValid()) + return static_cast<Attachment>(d->parsed.toInt()); + if (d->values.count() != 1) + return Attachment_Unknown; + int v = findKnownValue(d->values.at(0).variant.toString(), + attachments, NumKnownAttachments); + d->parsed = v; + return static_cast<Attachment>(v); +} + +int Declaration::styleFeaturesValue() const +{ + Q_ASSERT(d->propertyId == QtStyleFeatures); + if (d->parsed.isValid()) + return d->parsed.toInt(); + int features = StyleFeature_None; + for (int i = 0; i < d->values.count(); i++) { + features |= static_cast<int>(findKnownValue(d->values.value(i).variant.toString(), + styleFeatures, NumKnownStyleFeatures)); + } + d->parsed = features; + return features; +} + +QString Declaration::uriValue() const +{ + if (d->values.isEmpty() || d->values.at(0).type != Value::Uri) + return QString(); + return d->values.at(0).variant.toString(); +} + +Qt::Alignment Declaration::alignmentValue() const +{ + if (d->parsed.isValid()) + return Qt::Alignment(d->parsed.toInt()); + if (d->values.isEmpty() || d->values.count() > 2) + return Qt::AlignLeft | Qt::AlignTop; + + Qt::Alignment v = parseAlignment(d->values.constData(), d->values.count()); + d->parsed = int(v); + return v; +} + +void Declaration::borderImageValue(QString *image, int *cuts, + TileMode *h, TileMode *v) const +{ + *image = uriValue(); + for (int i = 0; i < 4; i++) + cuts[i] = -1; + *h = *v = TileMode_Stretch; + + if (d->values.count() < 2) + return; + + if (d->values.at(1).type == Value::Number) { // cuts! + int i; + for (i = 0; i < qMin(d->values.count()-1, 4); i++) { + const Value& v = d->values.at(i+1); + if (v.type != Value::Number) + break; + cuts[i] = v.variant.toString().toInt(); + } + if (i == 0) cuts[0] = cuts[1] = cuts[2] = cuts[3] = 0; + else if (i == 1) cuts[3] = cuts[2] = cuts[1] = cuts[0]; + else if (i == 2) cuts[2] = cuts[0], cuts[3] = cuts[1]; + else if (i == 3) cuts[3] = cuts[1]; + } + + if (d->values.last().type == Value::Identifier) { + *v = static_cast<TileMode>(findKnownValue(d->values.last().variant.toString(), + tileModes, NumKnownTileModes)); + } + if (d->values[d->values.count() - 2].type == Value::Identifier) { + *h = static_cast<TileMode> + (findKnownValue(d->values[d->values.count()-2].variant.toString(), + tileModes, NumKnownTileModes)); + } else + *h = *v; +} + +QIcon Declaration::iconValue() const +{ + if (d->parsed.isValid()) + return qvariant_cast<QIcon>(d->parsed); + + QIcon icon; + for (int i = 0; i < d->values.count();) { + const Value &value = d->values.at(i++); + if (value.type != Value::Uri) + break; + QString uri = value.variant.toString(); + QIcon::Mode mode = QIcon::Normal; + QIcon::State state = QIcon::Off; + for (int j = 0; j < 2; j++) { + if (i != d->values.count() && d->values.at(i).type == Value::KnownIdentifier) { + switch (d->values.at(i).variant.toInt()) { + case Value_Disabled: mode = QIcon::Disabled; break; + case Value_Active: mode = QIcon::Active; break; + case Value_Selected: mode = QIcon::Selected; break; + case Value_Normal: mode = QIcon::Normal; break; + case Value_On: state = QIcon::On; break; + case Value_Off: state = QIcon::Off; break; + default: break; + } + ++i; + } else { + break; + } + } + + // QIcon is soo broken + if (icon.isNull()) + icon = QIcon(uri); + else + icon.addPixmap(uri, mode, state); + + if (i == d->values.count()) + break; + + if (d->values.at(i).type == Value::TermOperatorComma) + i++; + } + + d->parsed = qVariantFromValue<QIcon>(icon); + return icon; +} + +/////////////////////////////////////////////////////////////////////////////// +// Selector +int Selector::specificity() const +{ + int val = 0; + for (int i = 0; i < basicSelectors.count(); ++i) { + const BasicSelector &sel = basicSelectors.at(i); + if (!sel.elementName.isEmpty()) + val += 1; + + val += (sel.pseudos.count() + sel.attributeSelectors.count()) * 0x10; + val += sel.ids.count() * 0x100; + } + return val; +} + +QString Selector::pseudoElement() const +{ + const BasicSelector& bs = basicSelectors.last(); + if (!bs.pseudos.isEmpty() && bs.pseudos.at(0).type == PseudoClass_Unknown) + return bs.pseudos.at(0).name; + return QString(); +} + +quint64 Selector::pseudoClass(quint64 *negated) const +{ + const BasicSelector& bs = basicSelectors.last(); + if (bs.pseudos.isEmpty()) + return PseudoClass_Unspecified; + quint64 pc = PseudoClass_Unknown; + for (int i = !pseudoElement().isEmpty(); i < bs.pseudos.count(); i++) { + const Pseudo &pseudo = bs.pseudos.at(i); + if (pseudo.type == PseudoClass_Unknown) + return PseudoClass_Unknown; + if (!pseudo.negated) + pc |= pseudo.type; + else if (negated) + *negated |= pseudo.type; + } + return pc; +} + +/////////////////////////////////////////////////////////////////////////////// +// StyleSheet +void StyleSheet::buildIndexes(Qt::CaseSensitivity nameCaseSensitivity) +{ + QVector<StyleRule> universals; + for (int i = 0; i < styleRules.count(); ++i) { + const StyleRule &rule = styleRules.at(i); + QVector<Selector> universalsSelectors; + for (int j = 0; j < rule.selectors.count(); ++j) { + const Selector& selector = rule.selectors.at(j); + + if (selector.basicSelectors.isEmpty()) + continue; + + if (selector.basicSelectors.at(0).relationToNext == BasicSelector::NoRelation) { + if (selector.basicSelectors.count() != 1) + continue; + } else if (selector.basicSelectors.count() <= 1) { + continue; + } + + const BasicSelector &sel = selector.basicSelectors.at(selector.basicSelectors.count() - 1); + + if (!sel.ids.isEmpty()) { + StyleRule nr; + nr.selectors += selector; + nr.declarations = rule.declarations; + nr.order = i; + idIndex.insert(sel.ids.at(0), nr); + } else if (!sel.elementName.isEmpty()) { + StyleRule nr; + nr.selectors += selector; + nr.declarations = rule.declarations; + nr.order = i; + QString name = sel.elementName; + if (nameCaseSensitivity == Qt::CaseInsensitive) + name=name.toLower(); + nameIndex.insert(name, nr); + } else { + universalsSelectors += selector; + } + } + if (!universalsSelectors.isEmpty()) { + StyleRule nr; + nr.selectors = universalsSelectors; + nr.declarations = rule.declarations; + nr.order = i; + universals << nr; + } + } + styleRules = universals; +} + +/////////////////////////////////////////////////////////////////////////////// +// StyleSelector +StyleSelector::~StyleSelector() +{ +} + +bool StyleSelector::nodeNameEquals(NodePtr node, const QString& nodeName) const +{ + return nodeNames(node).contains(nodeName, nameCaseSensitivity); +} + +QStringList StyleSelector::nodeIds(NodePtr node) const +{ + return QStringList(attribute(node, QLatin1String("id"))); +} + +bool StyleSelector::selectorMatches(const Selector &selector, NodePtr node) +{ + if (selector.basicSelectors.isEmpty()) + return false; + + if (selector.basicSelectors.at(0).relationToNext == BasicSelector::NoRelation) { + if (selector.basicSelectors.count() != 1) + return false; + return basicSelectorMatches(selector.basicSelectors.at(0), node); + } + if (selector.basicSelectors.count() <= 1) + return false; + + int i = selector.basicSelectors.count() - 1; + node = duplicateNode(node); + bool match = true; + + BasicSelector sel = selector.basicSelectors.at(i); + do { + match = basicSelectorMatches(sel, node); + if (!match) { + if (sel.relationToNext == BasicSelector::MatchNextSelectorIfParent + || i == selector.basicSelectors.count() - 1) // first element must always match! + break; + } + + if (match || sel.relationToNext != BasicSelector::MatchNextSelectorIfAncestor) + --i; + + if (i < 0) + break; + + sel = selector.basicSelectors.at(i); + if (sel.relationToNext == BasicSelector::MatchNextSelectorIfAncestor + || sel.relationToNext == BasicSelector::MatchNextSelectorIfParent) { + + NodePtr nextParent = parentNode(node); + freeNode(node); + node = nextParent; + } else if (sel.relationToNext == BasicSelector::MatchNextSelectorIfPreceeds) { + NodePtr previousSibling = previousSiblingNode(node); + freeNode(node); + node = previousSibling; + } + if (isNullNode(node)) { + match = false; + break; + } + } while (i >= 0 && (match || sel.relationToNext == BasicSelector::MatchNextSelectorIfAncestor)); + + freeNode(node); + + return match; +} + +bool StyleSelector::basicSelectorMatches(const BasicSelector &sel, NodePtr node) +{ + if (!sel.attributeSelectors.isEmpty()) { + if (!hasAttributes(node)) + return false; + + for (int i = 0; i < sel.attributeSelectors.count(); ++i) { + const QCss::AttributeSelector &a = sel.attributeSelectors.at(i); + + const QString attrValue = attribute(node, a.name); + if (attrValue.isNull()) + return false; + + if (a.valueMatchCriterium == QCss::AttributeSelector::MatchContains) { + + QStringList lst = attrValue.split(QLatin1Char(' ')); + if (!lst.contains(a.value)) + return false; + } else if ( + (a.valueMatchCriterium == QCss::AttributeSelector::MatchEqual + && attrValue != a.value) + || + (a.valueMatchCriterium == QCss::AttributeSelector::MatchBeginsWith + && !attrValue.startsWith(a.value)) + ) + return false; + } + } + + if (!sel.elementName.isEmpty() + && !nodeNameEquals(node, sel.elementName)) + return false; + + if (!sel.ids.isEmpty() + && sel.ids != nodeIds(node)) + return false; + + return true; +} + +void StyleSelector::matchRule(NodePtr node, const StyleRule &rule, StyleSheetOrigin origin, + int depth, QMap<uint, StyleRule> *weightedRules) +{ + for (int j = 0; j < rule.selectors.count(); ++j) { + const Selector& selector = rule.selectors.at(j); + if (selectorMatches(selector, node)) { + uint weight = rule.order + + selector.specificity() *0x100 + + (uint(origin) + depth)*0x100000; + StyleRule newRule = rule; + if(rule.selectors.count() > 1) { + newRule.selectors.resize(1); + newRule.selectors[0] = selector; + } + //We might have rules with the same weight if they came from a rule with several selectors + weightedRules->insertMulti(weight, newRule); + } + } +} + +// Returns style rules that are in ascending order of specificity +// Each of the StyleRule returned will contain exactly one Selector +QVector<StyleRule> StyleSelector::styleRulesForNode(NodePtr node) +{ + QVector<StyleRule> rules; + if (styleSheets.isEmpty()) + return rules; + + QMap<uint, StyleRule> weightedRules; // (spec, rule) that will be sorted below + + //prune using indexed stylesheet + for (int sheetIdx = 0; sheetIdx < styleSheets.count(); ++sheetIdx) { + const StyleSheet &styleSheet = styleSheets.at(sheetIdx); + for (int i = 0; i < styleSheet.styleRules.count(); ++i) { + matchRule(node, styleSheet.styleRules.at(i), styleSheet.origin, styleSheet.depth, &weightedRules); + } + + if (!styleSheet.idIndex.isEmpty()) { + QStringList ids = nodeIds(node); + for (int i = 0; i < ids.count(); i++) { + const QString &key = ids.at(i); + QMultiHash<QString, StyleRule>::const_iterator it = styleSheet.idIndex.constFind(key); + while (it != styleSheet.idIndex.constEnd() && it.key() == key) { + matchRule(node, it.value(), styleSheet.origin, styleSheet.depth, &weightedRules); + ++it; + } + } + } + if (!styleSheet.nameIndex.isEmpty()) { + QStringList names = nodeNames(node); + for (int i = 0; i < names.count(); i++) { + QString name = names.at(i); + if (nameCaseSensitivity == Qt::CaseInsensitive) + name = name.toLower(); + QMultiHash<QString, StyleRule>::const_iterator it = styleSheet.nameIndex.constFind(name); + while (it != styleSheet.nameIndex.constEnd() && it.key() == name) { + matchRule(node, it.value(), styleSheet.origin, styleSheet.depth, &weightedRules); + ++it; + } + } + } + if (!medium.isEmpty()) { + for (int i = 0; i < styleSheet.mediaRules.count(); ++i) { + if (styleSheet.mediaRules.at(i).media.contains(medium, Qt::CaseInsensitive)) { + for (int j = 0; j < styleSheet.mediaRules.at(i).styleRules.count(); ++j) { + matchRule(node, styleSheet.mediaRules.at(i).styleRules.at(j), styleSheet.origin, + styleSheet.depth, &weightedRules); + } + } + } + } + } + + rules.reserve(weightedRules.count()); + QMap<uint, StyleRule>::const_iterator it = weightedRules.constBegin(); + for ( ; it != weightedRules.constEnd() ; ++it) + rules += *it; + + return rules; +} + +// for qtexthtmlparser which requires just the declarations with Enabled state +// and without pseudo elements +QVector<Declaration> StyleSelector::declarationsForNode(NodePtr node, const char *extraPseudo) +{ + QVector<Declaration> decls; + QVector<StyleRule> rules = styleRulesForNode(node); + for (int i = 0; i < rules.count(); i++) { + const Selector& selector = rules.at(i).selectors.at(0); + const QString pseudoElement = selector.pseudoElement(); + + if (extraPseudo && pseudoElement == QLatin1String(extraPseudo)) { + decls += rules.at(i).declarations; + continue; + } + + if (!pseudoElement.isEmpty()) // skip rules with pseudo elements + continue; + quint64 pseudoClass = selector.pseudoClass(); + if (pseudoClass == PseudoClass_Enabled || pseudoClass == PseudoClass_Unspecified) + decls += rules.at(i).declarations; + } + return decls; +} + +static inline bool isHexDigit(const char c) +{ + return (c >= '0' && c <= '9') + || (c >= 'a' && c <= 'f') + || (c >= 'A' && c <= 'F') + ; +} + +QString Scanner::preprocess(const QString &input, bool *hasEscapeSequences) +{ + QString output = input; + + if (hasEscapeSequences) + *hasEscapeSequences = false; + + int i = 0; + while (i < output.size()) { + if (output.at(i) == QLatin1Char('\\')) { + + ++i; + // test for unicode hex escape + int hexCount = 0; + const int hexStart = i; + while (i < output.size() + && isHexDigit(output.at(i).toLatin1()) + && hexCount < 7) { + ++hexCount; + ++i; + } + if (hexCount == 0) { + if (hasEscapeSequences) + *hasEscapeSequences = true; + continue; + } + + hexCount = qMin(hexCount, 6); + bool ok = false; + ushort code = output.mid(hexStart, hexCount).toUShort(&ok, 16); + if (ok) { + output.replace(hexStart - 1, hexCount + 1, QChar(code)); + i = hexStart; + } else { + i = hexStart; + } + } else { + ++i; + } + } + return output; +} + +int QCssScanner_Generated::handleCommentStart() +{ + while (pos < input.size() - 1) { + if (input.at(pos) == QLatin1Char('*') + && input.at(pos + 1) == QLatin1Char('/')) { + pos += 2; + break; + } + ++pos; + } + return S; +} + +void Scanner::scan(const QString &preprocessedInput, QVector<Symbol> *symbols) +{ + QCssScanner_Generated scanner(preprocessedInput); + Symbol sym; + int tok = scanner.lex(); + while (tok != -1) { + sym.token = static_cast<QCss::TokenType>(tok); + sym.text = scanner.input; + sym.start = scanner.lexemStart; + sym.len = scanner.lexemLength; + symbols->append(sym); + tok = scanner.lex(); + } +} + +QString Symbol::lexem() const +{ + QString result; + if (len > 0) + result.reserve(len); + for (int i = 0; i < len; ++i) { + if (text.at(start + i) == QLatin1Char('\\') && i < len - 1) + ++i; + result += text.at(start + i); + } + return result; +} + +Parser::Parser(const QString &css, bool isFile) +{ + init(css, isFile); +} + +Parser::Parser() +{ + index = 0; + errorIndex = -1; + hasEscapeSequences = false; +} + +void Parser::init(const QString &css, bool isFile) +{ + QString styleSheet = css; + if (isFile) { + QFile file(css); + if (file.open(QFile::ReadOnly)) { + sourcePath = QFileInfo(styleSheet).absolutePath() + QLatin1String("/"); + QTextStream stream(&file); + styleSheet = stream.readAll(); + } else { + qWarning() << "QCss::Parser - Failed to load file " << css; + styleSheet.clear(); + } + } else { + sourcePath.clear(); + } + + hasEscapeSequences = false; + symbols.resize(0); + Scanner::scan(Scanner::preprocess(styleSheet, &hasEscapeSequences), &symbols); + index = 0; + errorIndex = -1; +} + +bool Parser::parse(StyleSheet *styleSheet, Qt::CaseSensitivity nameCaseSensitivity) +{ + if (testTokenAndEndsWith(ATKEYWORD_SYM, QLatin1String("charset"))) { + if (!next(STRING)) return false; + if (!next(SEMICOLON)) return false; + } + + while (test(S) || test(CDO) || test(CDC)) {} + + while (testImport()) { + ImportRule rule; + if (!parseImport(&rule)) return false; + styleSheet->importRules.append(rule); + while (test(S) || test(CDO) || test(CDC)) {} + } + + do { + if (testMedia()) { + MediaRule rule; + if (!parseMedia(&rule)) return false; + styleSheet->mediaRules.append(rule); + } else if (testPage()) { + PageRule rule; + if (!parsePage(&rule)) return false; + styleSheet->pageRules.append(rule); + } else if (testRuleset()) { + StyleRule rule; + if (!parseRuleset(&rule)) return false; + styleSheet->styleRules.append(rule); + } else if (test(ATKEYWORD_SYM)) { + if (!until(RBRACE)) return false; + } else if (hasNext()) { + return false; + } + while (test(S) || test(CDO) || test(CDC)) {} + } while (hasNext()); + styleSheet->buildIndexes(nameCaseSensitivity); + return true; +} + +Symbol Parser::errorSymbol() +{ + if (errorIndex == -1) return Symbol(); + return symbols.at(errorIndex); +} + +static inline void removeOptionalQuotes(QString *str) +{ + if (!str->startsWith(QLatin1Char('\'')) + && !str->startsWith(QLatin1Char('\"'))) + return; + str->remove(0, 1); + str->chop(1); +} + +bool Parser::parseImport(ImportRule *importRule) +{ + skipSpace(); + + if (test(STRING)) { + importRule->href = lexem(); + } else { + if (!testAndParseUri(&importRule->href)) return false; + } + removeOptionalQuotes(&importRule->href); + + skipSpace(); + + if (testMedium()) { + if (!parseMedium(&importRule->media)) return false; + + while (test(COMMA)) { + skipSpace(); + if (!parseNextMedium(&importRule->media)) return false; + } + } + + if (!next(SEMICOLON)) return false; + + skipSpace(); + return true; +} + +bool Parser::parseMedia(MediaRule *mediaRule) +{ + do { + skipSpace(); + if (!parseNextMedium(&mediaRule->media)) return false; + } while (test(COMMA)); + + if (!next(LBRACE)) return false; + skipSpace(); + + while (testRuleset()) { + StyleRule rule; + if (!parseRuleset(&rule)) return false; + mediaRule->styleRules.append(rule); + } + + if (!next(RBRACE)) return false; + skipSpace(); + return true; +} + +bool Parser::parseMedium(QStringList *media) +{ + media->append(lexem()); + skipSpace(); + return true; +} + +bool Parser::parsePage(PageRule *pageRule) +{ + skipSpace(); + + if (testPseudoPage()) + if (!parsePseudoPage(&pageRule->selector)) return false; + + skipSpace(); + if (!next(LBRACE)) return false; + + do { + skipSpace(); + Declaration decl; + if (!parseNextDeclaration(&decl)) return false; + if (!decl.isEmpty()) + pageRule->declarations.append(decl); + } while (test(SEMICOLON)); + + if (!next(RBRACE)) return false; + skipSpace(); + return true; +} + +bool Parser::parsePseudoPage(QString *selector) +{ + if (!next(IDENT)) return false; + *selector = lexem(); + return true; +} + +bool Parser::parseNextOperator(Value *value) +{ + if (!hasNext()) return true; + switch (next()) { + case SLASH: value->type = Value::TermOperatorSlash; skipSpace(); break; + case COMMA: value->type = Value::TermOperatorComma; skipSpace(); break; + default: prev(); break; + } + return true; +} + +bool Parser::parseCombinator(BasicSelector::Relation *relation) +{ + *relation = BasicSelector::NoRelation; + if (lookup() == S) { + *relation = BasicSelector::MatchNextSelectorIfAncestor; + skipSpace(); + } else { + prev(); + } + if (test(PLUS)) { + *relation = BasicSelector::MatchNextSelectorIfPreceeds; + } else if (test(GREATER)) { + *relation = BasicSelector::MatchNextSelectorIfParent; + } + skipSpace(); + return true; +} + +bool Parser::parseProperty(Declaration *decl) +{ + decl->d->property = lexem(); + decl->d->propertyId = static_cast<Property>(findKnownValue(decl->d->property, properties, NumProperties)); + skipSpace(); + return true; +} + +bool Parser::parseRuleset(StyleRule *styleRule) +{ + Selector sel; + if (!parseSelector(&sel)) return false; + styleRule->selectors.append(sel); + + while (test(COMMA)) { + skipSpace(); + Selector sel; + if (!parseNextSelector(&sel)) return false; + styleRule->selectors.append(sel); + } + + skipSpace(); + if (!next(LBRACE)) return false; + const int declarationStart = index; + + do { + skipSpace(); + Declaration decl; + const int rewind = index; + if (!parseNextDeclaration(&decl)) { + index = rewind; + const bool foundSemicolon = until(SEMICOLON); + const int semicolonIndex = index; + + index = declarationStart; + const bool foundRBrace = until(RBRACE); + + if (foundSemicolon && semicolonIndex < index) { + decl = Declaration(); + index = semicolonIndex - 1; + } else { + skipSpace(); + return foundRBrace; + } + } + if (!decl.isEmpty()) + styleRule->declarations.append(decl); + } while (test(SEMICOLON)); + + if (!next(RBRACE)) return false; + skipSpace(); + return true; +} + +bool Parser::parseSelector(Selector *sel) +{ + BasicSelector basicSel; + if (!parseSimpleSelector(&basicSel)) return false; + while (testCombinator()) { + if (!parseCombinator(&basicSel.relationToNext)) return false; + + if (!testSimpleSelector()) break; + sel->basicSelectors.append(basicSel); + + basicSel = BasicSelector(); + if (!parseSimpleSelector(&basicSel)) return false; + } + sel->basicSelectors.append(basicSel); + return true; +} + +bool Parser::parseSimpleSelector(BasicSelector *basicSel) +{ + int minCount = 0; + if (lookupElementName()) { + if (!parseElementName(&basicSel->elementName)) return false; + } else { + prev(); + minCount = 1; + } + bool onceMore; + int count = 0; + do { + onceMore = false; + if (test(HASH)) { + QString theid = lexem(); + // chop off leading # + theid.remove(0, 1); + basicSel->ids.append(theid); + onceMore = true; + } else if (testClass()) { + onceMore = true; + AttributeSelector a; + a.name = QLatin1String("class"); + a.valueMatchCriterium = AttributeSelector::MatchContains; + if (!parseClass(&a.value)) return false; + basicSel->attributeSelectors.append(a); + } else if (testAttrib()) { + onceMore = true; + AttributeSelector a; + if (!parseAttrib(&a)) return false; + basicSel->attributeSelectors.append(a); + } else if (testPseudo()) { + onceMore = true; + Pseudo ps; + if (!parsePseudo(&ps)) return false; + basicSel->pseudos.append(ps); + } + if (onceMore) ++count; + } while (onceMore); + return count >= minCount; +} + +bool Parser::parseClass(QString *name) +{ + if (!next(IDENT)) return false; + *name = lexem(); + return true; +} + +bool Parser::parseElementName(QString *name) +{ + switch (lookup()) { + case STAR: name->clear(); break; + case IDENT: *name = lexem(); break; + default: return false; + } + return true; +} + +bool Parser::parseAttrib(AttributeSelector *attr) +{ + skipSpace(); + if (!next(IDENT)) return false; + attr->name = lexem(); + skipSpace(); + + if (test(EQUAL)) { + attr->valueMatchCriterium = AttributeSelector::MatchEqual; + } else if (test(INCLUDES)) { + attr->valueMatchCriterium = AttributeSelector::MatchContains; + } else if (test(DASHMATCH)) { + attr->valueMatchCriterium = AttributeSelector::MatchBeginsWith; + } else { + return next(RBRACKET); + } + + skipSpace(); + + if (!test(IDENT) && !test(STRING)) return false; + attr->value = unquotedLexem(); + + skipSpace(); + return next(RBRACKET); +} + +bool Parser::parsePseudo(Pseudo *pseudo) +{ + test(COLON); + pseudo->negated = test(EXCLAMATION_SYM); + if (test(IDENT)) { + pseudo->name = lexem(); + pseudo->type = static_cast<quint64>(findKnownValue(pseudo->name, pseudos, NumPseudos)); + return true; + } + if (!next(FUNCTION)) return false; + pseudo->function = lexem(); + // chop off trailing parenthesis + pseudo->function.chop(1); + skipSpace(); + if (!test(IDENT)) return false; + pseudo->name = lexem(); + skipSpace(); + return next(RPAREN); +} + +bool Parser::parseNextDeclaration(Declaration *decl) +{ + if (!testProperty()) + return true; // not an error! + if (!parseProperty(decl)) return false; + if (!next(COLON)) return false; + skipSpace(); + if (!parseNextExpr(&decl->d->values)) return false; + if (testPrio()) + if (!parsePrio(decl)) return false; + return true; +} + +bool Parser::testPrio() +{ + const int rewind = index; + if (!test(EXCLAMATION_SYM)) return false; + skipSpace(); + if (!test(IDENT)) { + index = rewind; + return false; + } + if (lexem().compare(QLatin1String("important"), Qt::CaseInsensitive) != 0) { + index = rewind; + return false; + } + return true; +} + +bool Parser::parsePrio(Declaration *declaration) +{ + declaration->d->important = true; + skipSpace(); + return true; +} + +bool Parser::parseExpr(QVector<Value> *values) +{ + Value val; + if (!parseTerm(&val)) return false; + values->append(val); + bool onceMore; + do { + onceMore = false; + val = Value(); + if (!parseNextOperator(&val)) return false; + if (val.type != QCss::Value::Unknown) + values->append(val); + if (testTerm()) { + onceMore = true; + val = Value(); + if (!parseTerm(&val)) return false; + values->append(val); + } + } while (onceMore); + return true; +} + +bool Parser::testTerm() +{ + return test(PLUS) || test(MINUS) + || test(NUMBER) + || test(PERCENTAGE) + || test(LENGTH) + || test(STRING) + || test(IDENT) + || testHexColor() + || testFunction(); +} + +bool Parser::parseTerm(Value *value) +{ + QString str = lexem(); + bool haveUnary = false; + if (lookup() == PLUS || lookup() == MINUS) { + haveUnary = true; + if (!hasNext()) return false; + next(); + str += lexem(); + } + + value->variant = str; + value->type = QCss::Value::String; + switch (lookup()) { + case NUMBER: + value->type = Value::Number; + value->variant.convert(QVariant::Double); + break; + case PERCENTAGE: + value->type = Value::Percentage; + str.chop(1); // strip off % + value->variant = str; + break; + case LENGTH: + value->type = Value::Length; + break; + + case STRING: + if (haveUnary) return false; + value->type = Value::String; + str.chop(1); + str.remove(0, 1); + value->variant = str; + break; + case IDENT: { + if (haveUnary) return false; + value->type = Value::Identifier; + const int theid = findKnownValue(str, values, NumKnownValues); + if (theid != 0) { + value->type = Value::KnownIdentifier; + value->variant = theid; + } + break; + } + default: { + if (haveUnary) return false; + prev(); + if (testHexColor()) { + QColor col; + if (!parseHexColor(&col)) return false; + value->type = Value::Color; + value->variant = col; + } else if (testFunction()) { + QString name, args; + if (!parseFunction(&name, &args)) return false; + if (name == QLatin1String("url")) { + value->type = Value::Uri; + removeOptionalQuotes(&args); + if (QFileInfo(args).isRelative() && !sourcePath.isEmpty()) { + args.prepend(sourcePath); + } + value->variant = args; + } else { + value->type = Value::Function; + value->variant = QStringList() << name << args; + } + } else { + return recordError(); + } + return true; + } + } + skipSpace(); + return true; +} + +bool Parser::parseFunction(QString *name, QString *args) +{ + *name = lexem(); + name->chop(1); + skipSpace(); + const int start = index; + if (!until(RPAREN)) return false; + for (int i = start; i < index - 1; ++i) + args->append(symbols.at(i).lexem()); + /* + if (!nextExpr(&arguments)) return false; + if (!next(RPAREN)) return false; + */ + skipSpace(); + return true; +} + +bool Parser::parseHexColor(QColor *col) +{ + col->setNamedColor(lexem()); + if (!col->isValid()) { + qWarning("QCssParser::parseHexColor: Unknown color name '%s'",lexem().toLatin1().constData()); + return false; + } + skipSpace(); + return true; +} + +bool Parser::testAndParseUri(QString *uri) +{ + const int rewind = index; + if (!testFunction()) return false; + + QString name, args; + if (!parseFunction(&name, &args)) { + index = rewind; + return false; + } + if (name.toLower() != QLatin1String("url")) { + index = rewind; + return false; + } + *uri = args; + removeOptionalQuotes(uri); + return true; +} + +bool Parser::testSimpleSelector() +{ + return testElementName() + || (test(HASH)) + || testClass() + || testAttrib() + || testPseudo(); +} + +bool Parser::next(QCss::TokenType t) +{ + if (hasNext() && next() == t) + return true; + return recordError(); +} + +bool Parser::test(QCss::TokenType t) +{ + if (index >= symbols.count()) + return false; + if (symbols.at(index).token == t) { + ++index; + return true; + } + return false; +} + +QString Parser::unquotedLexem() const +{ + QString s = lexem(); + if (lookup() == STRING) { + s.chop(1); + s.remove(0, 1); + } + return s; +} + +QString Parser::lexemUntil(QCss::TokenType t) +{ + QString lexem; + while (hasNext() && next() != t) + lexem += symbol().lexem(); + return lexem; +} + +bool Parser::until(QCss::TokenType target, QCss::TokenType target2) +{ + int braceCount = 0; + int brackCount = 0; + int parenCount = 0; + if (index) { + switch(symbols.at(index-1).token) { + case LBRACE: ++braceCount; break; + case LBRACKET: ++brackCount; break; + case FUNCTION: + case LPAREN: ++parenCount; break; + default: ; + } + } + while (index < symbols.size()) { + QCss::TokenType t = symbols.at(index++).token; + switch (t) { + case LBRACE: ++braceCount; break; + case RBRACE: --braceCount; break; + case LBRACKET: ++brackCount; break; + case RBRACKET: --brackCount; break; + case FUNCTION: + case LPAREN: ++parenCount; break; + case RPAREN: --parenCount; break; + default: break; + } + if ((t == target || (target2 != NONE && t == target2)) + && braceCount <= 0 + && brackCount <= 0 + && parenCount <= 0) + return true; + + if (braceCount < 0 || brackCount < 0 || parenCount < 0) { + --index; + break; + } + } + return false; +} + +bool Parser::testTokenAndEndsWith(QCss::TokenType t, const QLatin1String &str) +{ + if (!test(t)) return false; + if (!lexem().endsWith(str, Qt::CaseInsensitive)) { + prev(); + return false; + } + return true; +} + +QT_END_NAMESPACE +#endif // QT_NO_CSSPARSER |