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qstylesheetstyle.cpp
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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWidgets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qglobal.h>
#include "qstylesheetstyle_p.h"
#if QT_CONFIG(style_stylesheet)
#include "private/qcssutil_p.h"
#include <qdebug.h>
#include <qdir.h>
#include <qapplication.h>
#if QT_CONFIG(menu)
#include <qmenu.h>
#endif
#if QT_CONFIG(menubar)
#include <qmenubar.h>
#endif
#include <qpainter.h>
#include <qstyleoption.h>
#if QT_CONFIG(lineedit)
#include <qlineedit.h>
#endif
#include <private/qwindowsstyle_p.h>
#if QT_CONFIG(combobox)
#include <qcombobox.h>
#endif
#include "private/qcssparser_p.h"
#include "private/qmath_p.h"
#include <qabstractscrollarea.h>
#include "private/qabstractscrollarea_p.h"
#if QT_CONFIG(tooltip)
#include <qtooltip.h>
#endif
#include <qshareddata.h>
#if QT_CONFIG(toolbutton)
#include <qtoolbutton.h>
#endif
#if QT_CONFIG(scrollbar)
#include <qscrollbar.h>
#endif
#if QT_CONFIG(abstractslider)
#include <qabstractslider.h>
#endif
#include <qstring.h>
#include <qfile.h>
#if QT_CONFIG(checkbox)
#include <qcheckbox.h>
#endif
#if QT_CONFIG(itemviews)
#include <qheaderview.h>
#endif
#include <private/qwindowsstyle_p_p.h>
#if QT_CONFIG(animation)
#include <private/qstyleanimation_p.h>
#endif
#if QT_CONFIG(tabbar)
#include <qtabbar.h>
#endif
#include <QMetaProperty>
#if QT_CONFIG(mainwindow)
#include <qmainwindow.h>
#endif
#if QT_CONFIG(dockwidget)
#include <qdockwidget.h>
#endif
#if QT_CONFIG(mdiarea)
#include <qmdisubwindow.h>
#endif
#if QT_CONFIG(dialog)
#include <qdialog.h>
#endif
#include <private/qwidget_p.h>
#if QT_CONFIG(spinbox)
#include <QAbstractSpinBox>
#endif
#if QT_CONFIG(label)
#include <QLabel>
#endif
#include "qdrawutil.h"
#include <limits.h>
#if QT_CONFIG(toolbar)
#include <QtWidgets/qtoolbar.h>
#endif
#include <QtGui/qpainterpath.h>
#include <QtGui/qscreen.h>
#include <QtCore/private/qduplicatetracker_p.h>
QT_BEGIN_NAMESPACE
using namespace QCss;
class QStyleSheetStylePrivate : public QWindowsStylePrivate
{
Q_DECLARE_PUBLIC(QStyleSheetStyle)
public:
QStyleSheetStylePrivate() { }
};
static QStyleSheetStyleCaches *styleSheetCaches = nullptr;
/* RECURSION_GUARD:
* the QStyleSheetStyle is a proxy. If used with others proxy style, we may end up with something like:
* QStyleSheetStyle -> ProxyStyle -> QStyleSheetStyle -> OriginalStyle
* Recursion may happen if the style call the widget()->style() again.
* Not to mention the performence penalty of having two lookup of rules.
*
* The first instance of QStyleSheetStyle will set globalStyleSheetStyle to itself. The second one
* will notice the globalStyleSheetStyle is not istelf and call its base style directly.
*/
static const QStyleSheetStyle *globalStyleSheetStyle = nullptr;
class QStyleSheetStyleRecursionGuard
{
public:
QStyleSheetStyleRecursionGuard(const QStyleSheetStyle *that)
: guarded(globalStyleSheetStyle == nullptr)
{
if (guarded) globalStyleSheetStyle = that;
}
~QStyleSheetStyleRecursionGuard() { if (guarded) globalStyleSheetStyle = nullptr; }
bool guarded;
};
#define RECURSION_GUARD(RETURN) \
if (globalStyleSheetStyle != 0 && globalStyleSheetStyle != this) { RETURN; } \
QStyleSheetStyleRecursionGuard recursion_guard(this);
#define ceil(x) ((int)(x) + ((x) > 0 && (x) != (int)(x)))
enum PseudoElement {
PseudoElement_None,
PseudoElement_DownArrow,
PseudoElement_UpArrow,
PseudoElement_LeftArrow,
PseudoElement_RightArrow,
PseudoElement_Indicator,
PseudoElement_ExclusiveIndicator,
PseudoElement_PushButtonMenuIndicator,
PseudoElement_ComboBoxDropDown,
PseudoElement_ComboBoxArrow,
PseudoElement_Item,
PseudoElement_SpinBoxUpButton,
PseudoElement_SpinBoxUpArrow,
PseudoElement_SpinBoxDownButton,
PseudoElement_SpinBoxDownArrow,
PseudoElement_GroupBoxTitle,
PseudoElement_GroupBoxIndicator,
PseudoElement_ToolButtonMenu,
PseudoElement_ToolButtonMenuArrow,
PseudoElement_ToolButtonDownArrow,
PseudoElement_ToolBoxTab,
PseudoElement_ScrollBarSlider,
PseudoElement_ScrollBarAddPage,
PseudoElement_ScrollBarSubPage,
PseudoElement_ScrollBarAddLine,
PseudoElement_ScrollBarSubLine,
PseudoElement_ScrollBarFirst,
PseudoElement_ScrollBarLast,
PseudoElement_ScrollBarUpArrow,
PseudoElement_ScrollBarDownArrow,
PseudoElement_ScrollBarLeftArrow,
PseudoElement_ScrollBarRightArrow,
PseudoElement_SplitterHandle,
PseudoElement_ToolBarHandle,
PseudoElement_ToolBarSeparator,
PseudoElement_MenuScroller,
PseudoElement_MenuTearoff,
PseudoElement_MenuCheckMark,
PseudoElement_MenuSeparator,
PseudoElement_MenuIcon,
PseudoElement_MenuRightArrow,
PseudoElement_TreeViewBranch,
PseudoElement_HeaderViewSection,
PseudoElement_HeaderViewUpArrow,
PseudoElement_HeaderViewDownArrow,
PseudoElement_ProgressBarChunk,
PseudoElement_TabBarTab,
PseudoElement_TabBarScroller,
PseudoElement_TabBarTear,
PseudoElement_SliderGroove,
PseudoElement_SliderHandle,
PseudoElement_SliderAddPage,
PseudoElement_SliderSubPage,
PseudoElement_SliderTickmark,
PseudoElement_TabWidgetPane,
PseudoElement_TabWidgetTabBar,
PseudoElement_TabWidgetLeftCorner,
PseudoElement_TabWidgetRightCorner,
PseudoElement_DockWidgetTitle,
PseudoElement_DockWidgetCloseButton,
PseudoElement_DockWidgetFloatButton,
PseudoElement_DockWidgetSeparator,
PseudoElement_MdiCloseButton,
PseudoElement_MdiMinButton,
PseudoElement_MdiNormalButton,
PseudoElement_TitleBar,
PseudoElement_TitleBarCloseButton,
PseudoElement_TitleBarMinButton,
PseudoElement_TitleBarMaxButton,
PseudoElement_TitleBarShadeButton,
PseudoElement_TitleBarUnshadeButton,
PseudoElement_TitleBarNormalButton,
PseudoElement_TitleBarContextHelpButton,
PseudoElement_TitleBarSysMenu,
PseudoElement_ViewItem,
PseudoElement_ViewItemIcon,
PseudoElement_ViewItemText,
PseudoElement_ViewItemIndicator,
PseudoElement_ScrollAreaCorner,
PseudoElement_TabBarTabCloseButton,
NumPseudoElements
};
struct PseudoElementInfo {
QStyle::SubControl subControl;
const char name[19];
};
static const PseudoElementInfo knownPseudoElements[NumPseudoElements] = {
{ QStyle::SC_None, "" },
{ QStyle::SC_None, "down-arrow" },
{ QStyle::SC_None, "up-arrow" },
{ QStyle::SC_None, "left-arrow" },
{ QStyle::SC_None, "right-arrow" },
{ QStyle::SC_None, "indicator" },
{ QStyle::SC_None, "indicator" },
{ QStyle::SC_None, "menu-indicator" },
{ QStyle::SC_ComboBoxArrow, "drop-down" },
{ QStyle::SC_ComboBoxArrow, "down-arrow" },
{ QStyle::SC_None, "item" },
{ QStyle::SC_SpinBoxUp, "up-button" },
{ QStyle::SC_SpinBoxUp, "up-arrow" },
{ QStyle::SC_SpinBoxDown, "down-button" },
{ QStyle::SC_SpinBoxDown, "down-arrow" },
{ QStyle::SC_GroupBoxLabel, "title" },
{ QStyle::SC_GroupBoxCheckBox, "indicator" },
{ QStyle::SC_ToolButtonMenu, "menu-button" },
{ QStyle::SC_ToolButtonMenu, "menu-arrow" },
{ QStyle::SC_None, "menu-indicator" },
{ QStyle::SC_None, "tab" },
{ QStyle::SC_ScrollBarSlider, "handle" },
{ QStyle::SC_ScrollBarAddPage, "add-page" },
{ QStyle::SC_ScrollBarSubPage, "sub-page" },
{ QStyle::SC_ScrollBarAddLine, "add-line" },
{ QStyle::SC_ScrollBarSubLine, "sub-line" },
{ QStyle::SC_ScrollBarFirst, "first" },
{ QStyle::SC_ScrollBarLast, "last" },
{ QStyle::SC_ScrollBarSubLine, "up-arrow" },
{ QStyle::SC_ScrollBarAddLine, "down-arrow" },
{ QStyle::SC_ScrollBarSubLine, "left-arrow" },
{ QStyle::SC_ScrollBarAddLine, "right-arrow" },
{ QStyle::SC_None, "handle" },
{ QStyle::SC_None, "handle" },
{ QStyle::SC_None, "separator" },
{ QStyle::SC_None, "scroller" },
{ QStyle::SC_None, "tearoff" },
{ QStyle::SC_None, "indicator" },
{ QStyle::SC_None, "separator" },
{ QStyle::SC_None, "icon" },
{ QStyle::SC_None, "right-arrow" },
{ QStyle::SC_None, "branch" },
{ QStyle::SC_None, "section" },
{ QStyle::SC_None, "down-arrow" },
{ QStyle::SC_None, "up-arrow" },
{ QStyle::SC_None, "chunk" },
{ QStyle::SC_None, "tab" },
{ QStyle::SC_None, "scroller" },
{ QStyle::SC_None, "tear" },
{ QStyle::SC_SliderGroove, "groove" },
{ QStyle::SC_SliderHandle, "handle" },
{ QStyle::SC_None, "add-page" },
{ QStyle::SC_None, "sub-page"},
{ QStyle::SC_SliderTickmarks, "tick-mark" },
{ QStyle::SC_None, "pane" },
{ QStyle::SC_None, "tab-bar" },
{ QStyle::SC_None, "left-corner" },
{ QStyle::SC_None, "right-corner" },
{ QStyle::SC_None, "title" },
{ QStyle::SC_None, "close-button" },
{ QStyle::SC_None, "float-button" },
{ QStyle::SC_None, "separator" },
{ QStyle::SC_MdiCloseButton, "close-button" },
{ QStyle::SC_MdiMinButton, "minimize-button" },
{ QStyle::SC_MdiNormalButton, "normal-button" },
{ QStyle::SC_TitleBarLabel, "title" },
{ QStyle::SC_TitleBarCloseButton, "close-button" },
{ QStyle::SC_TitleBarMinButton, "minimize-button" },
{ QStyle::SC_TitleBarMaxButton, "maximize-button" },
{ QStyle::SC_TitleBarShadeButton, "shade-button" },
{ QStyle::SC_TitleBarUnshadeButton, "unshade-button" },
{ QStyle::SC_TitleBarNormalButton, "normal-button" },
{ QStyle::SC_TitleBarContextHelpButton, "contexthelp-button" },
{ QStyle::SC_TitleBarSysMenu, "sys-menu" },
{ QStyle::SC_None, "item" },
{ QStyle::SC_None, "icon" },
{ QStyle::SC_None, "text" },
{ QStyle::SC_None, "indicator" },
{ QStyle::SC_None, "corner" },
{ QStyle::SC_None, "close-button" },
};
struct QStyleSheetBorderImageData : public QSharedData
{
QStyleSheetBorderImageData()
: horizStretch(QCss::TileMode_Unknown), vertStretch(QCss::TileMode_Unknown)
{
for (int i = 0; i < 4; i++)
cuts[i] = -1;
}
int cuts[4];
QPixmap pixmap;
QImage image;
QCss::TileMode horizStretch, vertStretch;
};
struct QStyleSheetBackgroundData : public QSharedData
{
QStyleSheetBackgroundData(const QBrush& b, const QPixmap& p, QCss::Repeat r,
Qt::Alignment a, QCss::Origin o, Attachment t, QCss::Origin c)
: brush(b), pixmap(p), repeat(r), position(a), origin(o), attachment(t), clip(c) { }
bool isTransparent() const {
if (brush.style() != Qt::NoBrush)
return !brush.isOpaque();
return pixmap.isNull() ? false : pixmap.hasAlpha();
}
QBrush brush;
QPixmap pixmap;
QCss::Repeat repeat;
Qt::Alignment position;
QCss::Origin origin;
QCss::Attachment attachment;
QCss::Origin clip;
};
struct QStyleSheetBorderData : public QSharedData
{
QStyleSheetBorderData() : bi(nullptr)
{
for (int i = 0; i < 4; i++) {
borders[i] = 0;
styles[i] = QCss::BorderStyle_None;
}
}
QStyleSheetBorderData(int *b, QBrush *c, QCss::BorderStyle *s, QSize *r) : bi(nullptr)
{
for (int i = 0; i < 4; i++) {
borders[i] = b[i];
styles[i] = s[i];
colors[i] = c[i];
radii[i] = r[i];
}
}
int borders[4];
QBrush colors[4];
QCss::BorderStyle styles[4];
QSize radii[4]; // topleft, topright, bottomleft, bottomright
const QStyleSheetBorderImageData *borderImage() const
{ return bi; }
bool hasBorderImage() const { return bi!=nullptr; }
QSharedDataPointer<QStyleSheetBorderImageData> bi;
bool isOpaque() const
{
for (int i = 0; i < 4; i++) {
if (styles[i] == QCss::BorderStyle_Native || styles[i] == QCss::BorderStyle_None)
continue;
if (styles[i] >= QCss::BorderStyle_Dotted && styles[i] <= QCss::BorderStyle_DotDotDash
&& styles[i] != BorderStyle_Solid)
return false;
if (!colors[i].isOpaque())
return false;
if (!radii[i].isEmpty())
return false;
}
if (bi != nullptr && bi->pixmap.hasAlpha())
return false;
return true;
}
};
struct QStyleSheetOutlineData : public QStyleSheetBorderData
{
QStyleSheetOutlineData()
{
for (int i = 0; i < 4; i++) {
offsets[i] = 0;
}
}
QStyleSheetOutlineData(int *b, QBrush *c, QCss::BorderStyle *s, QSize *r, int *o)
: QStyleSheetBorderData(b, c, s, r)
{
for (int i = 0; i < 4; i++) {
offsets[i] = o[i];
}
}
int offsets[4];
};
struct QStyleSheetBoxData : public QSharedData
{
QStyleSheetBoxData(int *m, int *p, int s) : spacing(s)
{
for (int i = 0; i < 4; i++) {
margins[i] = m[i];
paddings[i] = p[i];
}
}
int margins[4];
int paddings[4];
int spacing;
};
struct QStyleSheetPaletteData : public QSharedData
{
QStyleSheetPaletteData(const QBrush &fg, const QBrush &sfg, const QBrush &sbg,
const QBrush &abg)
: foreground(fg), selectionForeground(sfg), selectionBackground(sbg),
alternateBackground(abg) { }
QBrush foreground;
QBrush selectionForeground;
QBrush selectionBackground;
QBrush alternateBackground;
};
struct QStyleSheetGeometryData : public QSharedData
{
QStyleSheetGeometryData(int w, int h, int minw, int minh, int maxw, int maxh)
: minWidth(minw), minHeight(minh), width(w), height(h), maxWidth(maxw), maxHeight(maxh) { }
int minWidth, minHeight, width, height, maxWidth, maxHeight;
};
struct QStyleSheetPositionData : public QSharedData
{
QStyleSheetPositionData(int l, int t, int r, int b, Origin o, Qt::Alignment p, QCss::PositionMode m, Qt::Alignment a = { })
: left(l), top(t), bottom(b), right(r), origin(o), position(p), mode(m), textAlignment(a) { }
int left, top, bottom, right;
Origin origin;
Qt::Alignment position;
QCss::PositionMode mode;
Qt::Alignment textAlignment;
};
struct QStyleSheetImageData : public QSharedData
{
QStyleSheetImageData(const QIcon &i, Qt::Alignment a, const QSize &sz)
: icon(i), alignment(a), size(sz) { }
QIcon icon;
Qt::Alignment alignment;
QSize size;
};
class QRenderRule
{
public:
QRenderRule() : features(0), hasFont(false), pal(nullptr), b(nullptr), bg(nullptr), bd(nullptr), ou(nullptr), geo(nullptr), p(nullptr), img(nullptr), clipset(0) { }
QRenderRule(const QVector<QCss::Declaration> &, const QObject *);
QRect borderRect(const QRect &r) const;
QRect outlineRect(const QRect &r) const;
QRect paddingRect(const QRect &r) const;
QRect contentsRect(const QRect &r) const;
enum { Margin = 1, Border = 2, Padding = 4, All=Margin|Border|Padding };
QRect boxRect(const QRect &r, int flags = All) const;
QSize boxSize(const QSize &s, int flags = All) const;
QRect originRect(const QRect &rect, Origin origin) const;
QPainterPath borderClip(QRect rect);
void drawBorder(QPainter *, const QRect&);
void drawOutline(QPainter *, const QRect&);
void drawBorderImage(QPainter *, const QRect&);
void drawBackground(QPainter *, const QRect&, const QPoint& = QPoint(0, 0));
void drawBackgroundImage(QPainter *, const QRect&, QPoint = QPoint(0, 0));
void drawFrame(QPainter *, const QRect&);
void drawImage(QPainter *p, const QRect &rect);
void drawRule(QPainter *, const QRect&);
void configurePalette(QPalette *, QPalette::ColorGroup, const QWidget *, bool);
void configurePalette(QPalette *p, QPalette::ColorRole fr, QPalette::ColorRole br);
const QStyleSheetPaletteData *palette() const { return pal; }
const QStyleSheetBoxData *box() const { return b; }
const QStyleSheetBackgroundData *background() const { return bg; }
const QStyleSheetBorderData *border() const { return bd; }
const QStyleSheetOutlineData *outline() const { return ou; }
const QStyleSheetGeometryData *geometry() const { return geo; }
const QStyleSheetPositionData *position() const { return p; }
const QStyleSheetImageData *icon() const { return iconPtr; }
bool hasModification() const;
bool hasPalette() const { return pal != nullptr; }
bool hasBackground() const { return bg != nullptr && (!bg->pixmap.isNull() || bg->brush.style() != Qt::NoBrush); }
bool hasGradientBackground() const { return bg && bg->brush.style() >= Qt::LinearGradientPattern
&& bg->brush.style() <= Qt::ConicalGradientPattern; }
bool hasNativeBorder() const {
return bd == nullptr
|| (!bd->hasBorderImage() && bd->styles[0] == BorderStyle_Native);
}
bool hasNativeOutline() const {
return (ou == nullptr
|| (!ou->hasBorderImage() && ou->styles[0] == BorderStyle_Native));
}
bool baseStyleCanDraw() const {
if (!hasBackground() || (background()->brush.style() == Qt::NoBrush && bg->pixmap.isNull()))
return true;
if (bg && !bg->pixmap.isNull())
return false;
if (hasGradientBackground())
return features & StyleFeature_BackgroundGradient;
return features & StyleFeature_BackgroundColor;
}
bool hasBox() const { return b != nullptr; }
bool hasBorder() const { return bd != nullptr; }
bool hasOutline() const { return ou != nullptr; }
bool hasPosition() const { return p != nullptr; }
bool hasGeometry() const { return geo != nullptr; }
bool hasDrawable() const { return !hasNativeBorder() || hasBackground() || hasImage(); }
bool hasImage() const { return img != nullptr; }
bool hasIcon() const { return iconPtr != nullptr; }
QSize minimumContentsSize() const
{ return geo ? QSize(geo->minWidth, geo->minHeight) : QSize(0, 0); }
QSize minimumSize() const
{ return boxSize(minimumContentsSize()); }
QSize contentsSize() const
{ return geo ? QSize(geo->width, geo->height)
: ((img && img->size.isValid()) ? img->size : QSize()); }
QSize contentsSize(const QSize &sz) const
{
QSize csz = contentsSize();
if (csz.width() == -1) csz.setWidth(sz.width());
if (csz.height() == -1) csz.setHeight(sz.height());
return csz;
}
bool hasContentsSize() const
{ return (geo && (geo->width != -1 || geo->height != -1)) || (img && img->size.isValid()); }
QSize size() const { return boxSize(contentsSize()); }
QSize size(const QSize &sz) const { return boxSize(contentsSize(sz)); }
QSize adjustSize(const QSize &sz)
{
if (!geo)
return sz;
QSize csz = contentsSize();
if (csz.width() == -1) csz.setWidth(sz.width());
if (csz.height() == -1) csz.setHeight(sz.height());
if (geo->maxWidth != -1 && csz.width() > geo->maxWidth) csz.setWidth(geo->maxWidth);
if (geo->maxHeight != -1 && csz.height() > geo->maxHeight) csz.setHeight(geo->maxHeight);
csz=csz.expandedTo(QSize(geo->minWidth, geo->minHeight));
return csz;
}
bool hasStyleHint(const QString &sh) const { return styleHints.contains(sh); }
QVariant styleHint(const QString &sh) const { return styleHints.value(sh); }
void fixupBorder(int);
// Shouldn't be here
void setClip(QPainter *p, const QRect &rect);
void unsetClip(QPainter *);
public:
int features;
QBrush defaultBackground;
QFont font; // Be careful using this font directly. Prefer using font.resolve( )
bool hasFont;
QHash<QString, QVariant> styleHints;
QSharedDataPointer<QStyleSheetPaletteData> pal;
QSharedDataPointer<QStyleSheetBoxData> b;
QSharedDataPointer<QStyleSheetBackgroundData> bg;
QSharedDataPointer<QStyleSheetBorderData> bd;
QSharedDataPointer<QStyleSheetOutlineData> ou;
QSharedDataPointer<QStyleSheetGeometryData> geo;
QSharedDataPointer<QStyleSheetPositionData> p;
QSharedDataPointer<QStyleSheetImageData> img;
QSharedDataPointer<QStyleSheetImageData> iconPtr;
int clipset;
QPainterPath clipPath;
};
Q_DECLARE_TYPEINFO(QRenderRule, Q_MOVABLE_TYPE);
///////////////////////////////////////////////////////////////////////////////////////////
static const char knownStyleHints[][45] = {
"activate-on-singleclick",
"alignment",
"arrow-keys-navigate-into-children",
"backward-icon",
"button-layout",
"cd-icon",
"combobox-list-mousetracking",
"combobox-popup",
"computer-icon",
"desktop-icon",
"dialog-apply-icon",
"dialog-cancel-icon",
"dialog-close-icon",
"dialog-discard-icon",
"dialog-help-icon",
"dialog-no-icon",
"dialog-ok-icon",
"dialog-open-icon",
"dialog-reset-icon",
"dialog-save-icon",
"dialog-yes-icon",
"dialogbuttonbox-buttons-have-icons",
"directory-closed-icon",
"directory-icon",
"directory-link-icon",
"directory-open-icon",
"dither-disable-text",
"dockwidget-close-icon",
"downarrow-icon",
"dvd-icon",
"etch-disabled-text",
"file-icon",
"file-link-icon",
"filedialog-backward-icon", // unused
"filedialog-contentsview-icon",
"filedialog-detailedview-icon",
"filedialog-end-icon",
"filedialog-infoview-icon",
"filedialog-listview-icon",
"filedialog-new-directory-icon",
"filedialog-parent-directory-icon",
"filedialog-start-icon",
"floppy-icon",
"forward-icon",
"gridline-color",
"harddisk-icon",
"home-icon",
"icon-size",
"leftarrow-icon",
"lineedit-password-character",
"lineedit-password-mask-delay",
"mdi-fill-space-on-maximize",
"menu-scrollable",
"menubar-altkey-navigation",
"menubar-separator",
"messagebox-critical-icon",
"messagebox-information-icon",
"messagebox-question-icon",
"messagebox-text-interaction-flags",
"messagebox-warning-icon",
"mouse-tracking",
"network-icon",
"opacity",
"paint-alternating-row-colors-for-empty-area",
"rightarrow-icon",
"scrollbar-contextmenu",
"scrollbar-leftclick-absolute-position",
"scrollbar-middleclick-absolute-position",
"scrollbar-roll-between-buttons",
"scrollbar-scroll-when-pointer-leaves-control",
"scrollview-frame-around-contents",
"show-decoration-selected",
"spinbox-click-autorepeat-rate",
"spincontrol-disable-on-bounds",
"tabbar-elide-mode",
"tabbar-prefer-no-arrows",
"titlebar-close-icon",
"titlebar-contexthelp-icon",
"titlebar-maximize-icon",
"titlebar-menu-icon",
"titlebar-minimize-icon",
"titlebar-normal-icon",
"titlebar-shade-icon",
"titlebar-show-tooltips-on-buttons",
"titlebar-unshade-icon",
"toolbutton-popup-delay",
"trash-icon",
"uparrow-icon",
"widget-animation-duration"
};
static const int numKnownStyleHints = sizeof(knownStyleHints)/sizeof(knownStyleHints[0]);
static QList<QVariant> subControlLayout(const QString& layout)
{
QList<QVariant> buttons;
for (int i = 0; i < layout.count(); i++) {
int button = layout[i].toLatin1();
switch (button) {
case 'm':
buttons.append(PseudoElement_MdiMinButton);
buttons.append(PseudoElement_TitleBarMinButton);
break;
case 'M':
buttons.append(PseudoElement_TitleBarMaxButton);
break;
case 'X':
buttons.append(PseudoElement_MdiCloseButton);
buttons.append(PseudoElement_TitleBarCloseButton);
break;
case 'N':
buttons.append(PseudoElement_MdiNormalButton);
buttons.append(PseudoElement_TitleBarNormalButton);
break;
case 'I':
buttons.append(PseudoElement_TitleBarSysMenu);
break;
case 'T':
buttons.append(PseudoElement_TitleBar);
break;
case 'H':
buttons.append(PseudoElement_TitleBarContextHelpButton);
break;
case 'S':
buttons.append(PseudoElement_TitleBarShadeButton);
break;
default:
buttons.append(button);
break;
}
}
return buttons;
}
namespace {
struct ButtonInfo {
QRenderRule rule;
int element;
int offset;
int where;
int width;
};
}
template <> class QTypeInfo<ButtonInfo> : public QTypeInfoMerger<ButtonInfo, QRenderRule, int> {};
QHash<QStyle::SubControl, QRect> QStyleSheetStyle::titleBarLayout(const QWidget *w, const QStyleOptionTitleBar *tb) const
{
QHash<QStyle::SubControl, QRect> layoutRects;
const bool isMinimized = tb->titleBarState & Qt::WindowMinimized;
const bool isMaximized = tb->titleBarState & Qt::WindowMaximized;
QRenderRule subRule = renderRule(w, tb);
QRect cr = subRule.contentsRect(tb->rect);
QList<QVariant> layout = subRule.styleHint(QLatin1String("button-layout")).toList();
if (layout.isEmpty())
layout = subControlLayout(QLatin1String("I(T)HSmMX"));
int offsets[3] = { 0, 0, 0 };
enum Where { Left, Right, Center, NoWhere } where = Left;
QVector<ButtonInfo> infos;
const int numLayouts = layout.size();
infos.reserve(numLayouts);
for (int i = 0; i < numLayouts; i++) {
const int element = layout[i].toInt();
if (element == '(') {
where = Center;
} else if (element == ')') {
where = Right;
} else {
ButtonInfo info;
info.element = element;
switch (element) {
case PseudoElement_TitleBar:
if (!(tb->titleBarFlags & (Qt::WindowTitleHint | Qt::WindowSystemMenuHint)))
continue;
break;
case PseudoElement_TitleBarContextHelpButton:
if (!(tb->titleBarFlags & Qt::WindowContextHelpButtonHint))
continue;
break;
case PseudoElement_TitleBarMinButton:
if (!(tb->titleBarFlags & Qt::WindowMinimizeButtonHint))
continue;
if (isMinimized)
info.element = PseudoElement_TitleBarNormalButton;
break;
case PseudoElement_TitleBarMaxButton:
if (!(tb->titleBarFlags & Qt::WindowMaximizeButtonHint))
continue;
if (isMaximized)
info.element = PseudoElement_TitleBarNormalButton;
break;
case PseudoElement_TitleBarShadeButton:
if (!(tb->titleBarFlags & Qt::WindowShadeButtonHint))
continue;
if (isMinimized)
info.element = PseudoElement_TitleBarUnshadeButton;
break;
case PseudoElement_TitleBarCloseButton:
case PseudoElement_TitleBarSysMenu:
if (!(tb->titleBarFlags & Qt::WindowSystemMenuHint))
continue;
break;
default:
continue;
}
if (info.element == PseudoElement_TitleBar) {
info.width = tb->fontMetrics.horizontalAdvance(tb->text) + 6;
subRule.geo = new QStyleSheetGeometryData(info.width, tb->fontMetrics.height(), -1, -1, -1, -1);
} else {
subRule = renderRule(w, tb, info.element);
info.width = subRule.size().width();
}
info.rule = subRule;
info.offset = offsets[where];
info.where = where;
infos.append(std::move(info));
offsets[where] += info.width;
}
}
for (int i = 0; i < infos.size(); i++) {
const ButtonInfo &info = infos[i];
QRect lr = cr;
switch (info.where) {
case Center: {
lr.setLeft(cr.left() + offsets[Left]);
lr.setRight(cr.right() - offsets[Right]);
QRect r(0, 0, offsets[Center], lr.height());
r.moveCenter(lr.center());
r.setLeft(r.left()+info.offset);
r.setWidth(info.width);
lr = r;
break; }
case Left:
lr.translate(info.offset, 0);
lr.setWidth(info.width);
break;
case Right:
lr.moveLeft(cr.right() + 1 - offsets[Right] + info.offset);
lr.setWidth(info.width);
break;
default:
break;
}
QStyle::SubControl control = knownPseudoElements[info.element].subControl;
layoutRects[control] = positionRect(w, info.rule, info.element, lr, tb->direction);
}
return layoutRects;
}
static QStyle::StandardPixmap subControlIcon(int pe)
{
switch (pe) {
case PseudoElement_MdiCloseButton: return QStyle::SP_TitleBarCloseButton;
case PseudoElement_MdiMinButton: return QStyle::SP_TitleBarMinButton;
case PseudoElement_MdiNormalButton: return QStyle::SP_TitleBarNormalButton;
case PseudoElement_TitleBarCloseButton: return QStyle::SP_TitleBarCloseButton;
case PseudoElement_TitleBarMinButton: return QStyle::SP_TitleBarMinButton;
case PseudoElement_TitleBarMaxButton: return QStyle::SP_TitleBarMaxButton;
case PseudoElement_TitleBarShadeButton: return QStyle::SP_TitleBarShadeButton;
case PseudoElement_TitleBarUnshadeButton: return QStyle::SP_TitleBarUnshadeButton;
case PseudoElement_TitleBarNormalButton: return QStyle::SP_TitleBarNormalButton;
case PseudoElement_TitleBarContextHelpButton: return QStyle::SP_TitleBarContextHelpButton;
default: break;
}
return QStyle::SP_CustomBase;
}
QRenderRule::QRenderRule(const QVector<Declaration> &declarations, const QObject *object)
: features(0), hasFont(false), pal(nullptr), b(nullptr), bg(nullptr), bd(nullptr), ou(nullptr), geo(nullptr), p(nullptr), img(nullptr), clipset(0)
{
QPalette palette = QGuiApplication::palette(); // ###: ideally widget's palette
ValueExtractor v(declarations, palette);
features = v.extractStyleFeatures();
int w = -1, h = -1, minw = -1, minh = -1, maxw = -1, maxh = -1;
if (v.extractGeometry(&w, &h, &minw, &minh, &maxw, &maxh))
geo = new QStyleSheetGeometryData(w, h, minw, minh, maxw, maxh);
int left = 0, top = 0, right = 0, bottom = 0;
Origin origin = Origin_Unknown;
Qt::Alignment position;
QCss::PositionMode mode = PositionMode_Unknown;
Qt::Alignment textAlignment;
if (v.extractPosition(&left, &top, &right, &bottom, &origin, &position, &mode, &textAlignment))
p = new QStyleSheetPositionData(left, top, right, bottom, origin, position, mode, textAlignment);
int margins[4], paddings[4], spacing = -1;
for (int i = 0; i < 4; i++)
margins[i] = paddings[i] = 0;
if (v.extractBox(margins, paddings, &spacing))
b = new QStyleSheetBoxData(margins, paddings, spacing);
int borders[4];
QBrush colors[4];
QCss::BorderStyle styles[4];
QSize radii[4];
for (int i = 0; i < 4; i++) {
borders[i] = 0;
styles[i] = BorderStyle_None;
}
if (v.extractBorder(borders, colors, styles, radii))
bd = new QStyleSheetBorderData(borders, colors, styles, radii);
int offsets[4];
for (int i = 0; i < 4; i++) {
borders[i] = offsets[i] = 0;
styles[i] = BorderStyle_None;
}
if (v.extractOutline(borders, colors, styles, radii, offsets))
ou = new QStyleSheetOutlineData(borders, colors, styles, radii, offsets);
QBrush brush;
QString uri;
Repeat repeat = Repeat_XY;
Qt::Alignment alignment = Qt::AlignTop | Qt::AlignLeft;
Attachment attachment = Attachment_Scroll;
origin = Origin_Padding;
Origin clip = Origin_Border;
if (v.extractBackground(&brush, &uri, &repeat, &alignment, &origin, &attachment, &clip)) {
QPixmap pixmap = QStyleSheetStyle::loadPixmap(uri, object);
if (!uri.isEmpty() && pixmap.isNull())
qWarning("Could not create pixmap from %s", qPrintable(QDir::toNativeSeparators(uri)));
bg = new QStyleSheetBackgroundData(brush, pixmap, repeat, alignment, origin, attachment, clip);
}
QBrush sfg, fg;
QBrush sbg, abg;
if (v.extractPalette(&fg, &sfg, &sbg, &abg))
pal = new QStyleSheetPaletteData(fg, sfg, sbg, abg);
QIcon imgIcon;
alignment = Qt::AlignCenter;
QSize imgSize;
if (v.extractImage(&imgIcon, &alignment, &imgSize))
img = new QStyleSheetImageData(imgIcon, alignment, imgSize);
QIcon icon;
QSize size;
if (v.extractIcon(&icon, &size))
iconPtr = new QStyleSheetImageData(icon, Qt::AlignCenter, size);
int adj = -255;
hasFont = v.extractFont(&font, &adj);
#if QT_CONFIG(tooltip)
if (object && qstrcmp(object->metaObject()->className(), "QTipLabel") == 0)
palette = QToolTip::palette();
#endif
for (int i = 0; i < declarations.count(); i++) {
const Declaration& decl = declarations.at(i);