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Diffstat (limited to 'src/widgets/styles/qpixmapstyle.cpp')
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diff --git a/src/widgets/styles/qpixmapstyle.cpp b/src/widgets/styles/qpixmapstyle.cpp new file mode 100644 index 0000000000..a0fff82dc0 --- /dev/null +++ b/src/widgets/styles/qpixmapstyle.cpp @@ -0,0 +1,1163 @@ +/*************************************************************************** +** +** Copyright (C) 2014 BlackBerry Limited. All rights reserved. +** Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com +** 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 "qpixmapstyle_p.h" +#include "qpixmapstyle_p_p.h" + +#include <QDebug> +#include <QTextEdit> +#include <QStringBuilder> +#include <QPainter> +#include <QPixmapCache> +#include <QStyleOption> +#include <QString> +#include <QProgressBar> +#include <QSlider> +#include <QEvent> +#include <QComboBox> +#include <QAbstractItemView> +#include <QListView> +#include <QTreeView> +#include <QStyledItemDelegate> +#include <QAbstractScrollArea> +#include <QScrollBar> + +#include <qscroller.h> + +QT_BEGIN_NAMESPACE + +/*! + \class QPixmapStyle + \brief The QPixmapStyle class provides mechanism for writing pixmap based styles. + + \since 5.7 + \ingroup appearance + \inmodule QtWidgets + \internal + + This is a convenience class that enables the implementation of a widget style using + pixmaps, on the same fashion used by the \l{BorderImage} QML type. + + In order to style a QWidget, one simply needs to call QPixmapStyle::addDescriptor() + or QPixmapStyle::addPixmap() with the id of the component to be styled, the path of + the image to be used, the margins and the tiling rules: + + \snippet styles/qcustompixmapstyle.cpp 0 + + \sa QStyle, QCommonStyle +*/ + +/*! + \internal + + Constructs a QPixmapStyle object. +*/ +QPixmapStyle::QPixmapStyle() + : QCommonStyle(*new QPixmapStylePrivate) +{ +} + +/*! + Destroys the QPixmapStyle object. +*/ +QPixmapStyle::~QPixmapStyle() +{ +} + +/*! + \reimp +*/ +void QPixmapStyle::polish(QApplication *application) +{ + QCommonStyle::polish(application); +#if defined(Q_DEAD_CODE_FROM_QT4_WIN) + QApplication::setEffectEnabled(Qt::UI_AnimateCombo, false); +#endif +} + +/*! + \reimp +*/ +void QPixmapStyle::polish(QPalette &palette) +{ + palette = proxy()->standardPalette(); +} + +/*! + \reimp +*/ +void QPixmapStyle::polish(QWidget *widget) +{ + Q_D(QPixmapStyle); + + // Don't fill the interior of the QTextEdit + if (qobject_cast<QTextEdit*>(widget)) { + QPalette p = widget->palette(); + p.setBrush(QPalette::Base, Qt::NoBrush); + widget->setPalette(p); + } + + if (QProgressBar *pb = qobject_cast<QProgressBar*>(widget)) { + // Center the text in the progress bar + pb->setAlignment(Qt::AlignCenter); + // Change the font size if needed, as it's used to compute the minimum size + QFont font = pb->font(); + font.setPixelSize(d->descriptors.value(PB_HBackground).size.height()/2); + pb->setFont(font); + } + + if (qobject_cast<QSlider*>(widget)) + widget->installEventFilter(this); + + if (QComboBox *cb = qobject_cast<QComboBox*>(widget)) { + widget->installEventFilter(this); + // NOTE: This will break if the private API of QComboBox changes drastically + // Make sure the popup is created so we can change the frame style + QAbstractItemView *list = cb->view(); + list->setProperty("_pixmap_combobox_list", true); + list->setItemDelegate(new QStyledItemDelegate(list)); + QPalette p = list->palette(); + p.setBrush(QPalette::Active, QPalette::Base, QBrush(Qt::transparent) ); + p.setBrush(QPalette::Active, QPalette::AlternateBase, QBrush(Qt::transparent) ); + p.setBrush(QPalette::Inactive, QPalette::Base, QBrush(Qt::transparent) ); + p.setBrush(QPalette::Inactive, QPalette::AlternateBase, QBrush(Qt::transparent) ); + p.setBrush(QPalette::Disabled, QPalette::Base, QBrush(Qt::transparent) ); + p.setBrush(QPalette::Disabled, QPalette::AlternateBase, QBrush(Qt::transparent) ); + list->setPalette(p); + + QFrame *frame = qobject_cast<QFrame*>(list->parent()); + if (frame) { + const QPixmapStyleDescriptor &desc = d->descriptors.value(DD_PopupDown); + const QPixmapStylePixmap &pix = d->pixmaps.value(DD_ItemSeparator); + frame->setContentsMargins(pix.margins.left(), desc.margins.top(), + pix.margins.right(), desc.margins.bottom()); + frame->setAttribute(Qt::WA_TranslucentBackground); +#ifdef Q_DEAD_CODE_FROM_QT4_WIN + // FramelessWindowHint is needed on windows to make + // WA_TranslucentBackground work properly + frame->setWindowFlags(widget->windowFlags() | Qt::FramelessWindowHint); +#endif + } + } + + if (qstrcmp(widget->metaObject()->className(),"QComboBoxPrivateContainer") == 0) + widget->installEventFilter(this); + + if (QAbstractScrollArea *scrollArea = qobject_cast<QAbstractScrollArea*>(widget)) { + scrollArea->viewport()->setAutoFillBackground(false); + if (QAbstractItemView *view = qobject_cast<QAbstractItemView*>(scrollArea)) { + view->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel); + view->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel); + } + QScroller::grabGesture(scrollArea->viewport(), QScroller::LeftMouseButtonGesture); + } + + if (qobject_cast<QScrollBar*>(widget)) + widget->setAttribute(Qt::WA_OpaquePaintEvent, false); + + QCommonStyle::polish(widget); +} + +/*! + \reimp +*/ +void QPixmapStyle::unpolish(QApplication *application) +{ + QCommonStyle::unpolish(application); +} + +/*! + \reimp +*/ +void QPixmapStyle::unpolish(QWidget *widget) +{ + if (qobject_cast<QSlider*>(widget) || + qobject_cast<QComboBox*>(widget)) { + widget->removeEventFilter(this); + } + + if (qstrcmp(widget->metaObject()->className(),"QComboBoxPrivateContainer") == 0) + widget->removeEventFilter(this); + + if (QAbstractScrollArea *scrollArea = qobject_cast<QAbstractScrollArea*>(widget)) + QScroller::ungrabGesture(scrollArea->viewport()); + + QCommonStyle::unpolish(widget); +} + +/*! + \reimp +*/ +void QPixmapStyle::drawPrimitive(PrimitiveElement element, const QStyleOption *option, + QPainter *painter, const QWidget *widget) const +{ + switch (element) { + case PE_FrameFocusRect: //disable focus rectangle + break; + case PE_PanelButtonBevel: + case PE_PanelButtonCommand: + drawPushButton(option, painter, widget); + break; + case PE_PanelLineEdit: + case PE_FrameLineEdit: + drawLineEdit(option, painter, widget); + break; + case PE_Frame: + case PE_FrameDefaultButton: + if (qobject_cast<const QTextEdit*>(widget)) + drawTextEdit(option, painter, widget); + break; + case PE_IndicatorCheckBox: + drawCheckBox(option, painter, widget); + break; + case PE_IndicatorRadioButton: + drawRadioButton(option, painter, widget); + break; + case PE_PanelItemViewItem: + if (qobject_cast<const QListView*>(widget)) + drawPanelItemViewItem(option, painter, widget); + else + QCommonStyle::drawPrimitive(element, option, painter, widget); + break; + default: + QCommonStyle::drawPrimitive(element, option, painter, widget); + } +} + +/*! + \reimp +*/ +void QPixmapStyle::drawControl(ControlElement element, const QStyleOption *option, + QPainter *painter, const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + switch (element) { + case CE_ProgressBarGroove: + drawProgressBarBackground(option, painter, widget); + break; + case CE_ProgressBarLabel: + drawProgressBarLabel(option, painter, widget); + break; + case CE_ProgressBarContents: + drawProgressBarFill(option, painter, widget); + break; + case CE_ShapedFrame: + // NOTE: This will break if the private API of QComboBox changes drastically + if (qstrcmp(widget->metaObject()->className(),"QComboBoxPrivateContainer") == 0) { + const QPixmapStyleDescriptor &desc = d->descriptors.value(DD_PopupDown); + const QPixmapStylePixmap &pix = d->pixmaps.value(DD_ItemSeparator); + QRect rect = option->rect; + rect.adjust(-pix.margins.left(), -desc.margins.top(), + pix.margins.right(), desc.margins.bottom()); + bool up = widget->property("_pixmapstyle_combobox_up").toBool(); + drawCachedPixmap(up ? DD_PopupUp : DD_PopupDown, rect, painter); + } + else { + QCommonStyle::drawControl(element, option, painter, widget); + } + break; + default: + QCommonStyle::drawControl(element, option, painter, widget); + } +} + +/*! + \reimp +*/ +void QPixmapStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex *option, + QPainter *painter, const QWidget *widget) const +{ + switch (cc) { + case CC_Slider: + drawSlider(option, painter, widget); + break; + case CC_ComboBox: + drawComboBox(option, painter, widget); + break; + case CC_ScrollBar: + drawScrollBar(option, painter, widget); + break; + default: + QCommonStyle::drawComplexControl(cc, option, painter, widget); + } +} + +/*! + \reimp +*/ +QSize QPixmapStyle::sizeFromContents(ContentsType type, const QStyleOption *option, + const QSize &contentsSize, const QWidget *widget) const +{ + switch (type) { + case CT_PushButton: + return pushButtonSizeFromContents(option, contentsSize, widget); + case CT_LineEdit: + return lineEditSizeFromContents(option, contentsSize, widget); + case CT_ProgressBar: + return progressBarSizeFromContents(option, contentsSize, widget); + case CT_Slider: + return sliderSizeFromContents(option, contentsSize, widget); + case CT_ComboBox: + return comboBoxSizeFromContents(option, contentsSize, widget); + case CT_ItemViewItem: + return itemViewSizeFromContents(option, contentsSize, widget); + default: ; + } + + return QCommonStyle::sizeFromContents(type, option, contentsSize, widget); +} + +/*! + \reimp +*/ +QRect QPixmapStyle::subElementRect(SubElement element, const QStyleOption *option, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + switch (element) { + case SE_LineEditContents: + { + QRect rect = QCommonStyle::subElementRect(element, option, widget); + const QPixmapStyleDescriptor &desc = d->descriptors.value(LE_Enabled); + rect.adjust(desc.margins.left(), desc.margins.top(), + -desc.margins.right(), -desc.margins.bottom()); + rect = visualRect(option->direction, option->rect, rect); + return rect; + } + default: ; + } + + return QCommonStyle::subElementRect(element, option, widget); +} + +/*! + \reimp +*/ +QRect QPixmapStyle::subControlRect(ComplexControl cc, const QStyleOptionComplex *option, + SubControl sc, const QWidget *widget) const +{ + switch (cc) { + case CC_ComboBox: + return comboBoxSubControlRect(option, sc, widget); + case CC_ScrollBar: + return scrollBarSubControlRect(option, sc, widget); + default: ; + } + + return QCommonStyle::subControlRect(cc, option, sc, widget); +} + +/*! + \reimp +*/ +int QPixmapStyle::pixelMetric(PixelMetric metric, const QStyleOption *option, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + switch (metric) { + case PM_ButtonShiftHorizontal: + case PM_ButtonShiftVertical: + return 0; + case PM_DefaultFrameWidth: + if (qobject_cast<const QTextEdit*>(widget)) { + const QPixmapStyleDescriptor &desc = d->descriptors.value(LE_Enabled); + return qMax(qMax(desc.margins.left(), desc.margins.right()), + qMax(desc.margins.top(), desc.margins.bottom())); + } + return 0; + case PM_IndicatorWidth: + return d->pixmaps.value(CB_Enabled).pixmap.width(); + case PM_IndicatorHeight: + return d->pixmaps.value(CB_Enabled).pixmap.height(); + case PM_CheckBoxLabelSpacing: + { + const QPixmapStylePixmap &pix = d->pixmaps.value(CB_Enabled); + return qMax(qMax(pix.margins.left(), pix.margins.right()), + qMax(pix.margins.top(), pix.margins.bottom())); + } + case PM_ExclusiveIndicatorWidth: + return d->pixmaps.value(RB_Enabled).pixmap.width(); + case PM_ExclusiveIndicatorHeight: + return d->pixmaps.value(RB_Enabled).pixmap.height(); + case PM_RadioButtonLabelSpacing: + { + const QPixmapStylePixmap &pix = d->pixmaps.value(RB_Enabled); + return qMax(qMax(pix.margins.left(), pix.margins.right()), + qMax(pix.margins.top(), pix.margins.bottom())); + } + case PM_SliderThickness: + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + const QPixmapStyleDescriptor desc = + d->descriptors.value(slider->orientation == Qt::Horizontal + ? SG_HEnabled : SG_VEnabled); + return slider->orientation == Qt::Horizontal + ? desc.size.height() : desc.size.width(); + } + break; + case PM_SliderControlThickness: + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + const QPixmapStylePixmap pix = + d->pixmaps.value(slider->orientation == Qt::Horizontal + ? SH_HEnabled : SH_VEnabled); + return slider->orientation == Qt::Horizontal + ? pix.pixmap.height() : pix.pixmap.width(); + } + break; + case PM_SliderLength: + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + const QPixmapStylePixmap pix = + d->pixmaps.value(slider->orientation == Qt::Horizontal + ? SH_HEnabled : SH_VEnabled); + return slider->orientation == Qt::Horizontal + ? pix.pixmap.width() : pix.pixmap.height(); + } + break; + case PM_ScrollBarExtent: + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + const QPixmapStyleDescriptor desc = + d->descriptors.value(slider->orientation == Qt::Horizontal + ? SB_Horizontal : SB_Vertical); + return slider->orientation == Qt::Horizontal + ? desc.size.height() : desc.size.width(); + } + break; + case PM_ScrollBarSliderMin: + return 0; + default: ; + } + + return QCommonStyle::pixelMetric(metric, option, widget); +} + +/*! + \reimp +*/ +int QPixmapStyle::styleHint(StyleHint hint, const QStyleOption *option, + const QWidget *widget, QStyleHintReturn *returnData) const +{ + switch (hint) { + case SH_EtchDisabledText: + return false; + case SH_ComboBox_Popup: + return false; + default: ; + } + + return QCommonStyle::styleHint(hint, option, widget, returnData); +} + +/*! + \reimp +*/ +QStyle::SubControl QPixmapStyle::hitTestComplexControl(QStyle::ComplexControl control, + const QStyleOptionComplex *option, + const QPoint &pos, + const QWidget *widget) const +{ + const SubControl sc = QCommonStyle::hitTestComplexControl(control, option, pos, widget); + if (control == CC_ScrollBar) { + if (sc == SC_ScrollBarAddLine) + return SC_ScrollBarAddPage; + else if (sc == SC_ScrollBarSubLine) + return SC_ScrollBarSubPage; + } + + return sc; +} + +/*! + \reimp +*/ +bool QPixmapStyle::eventFilter(QObject *watched, QEvent *event) +{ + Q_D(QPixmapStyle); + + if (QSlider *slider = qobject_cast<QSlider*>(watched)) { + switch (event->type()) { + case QEvent::MouseButtonPress: + case QEvent::MouseButtonRelease: + case QEvent::MouseMove: + slider->update(); + break; + default: ; + } + } + + if (QComboBox *comboBox = qobject_cast<QComboBox*>(watched)) { + switch (event->type()) { + case QEvent::MouseButtonPress: + event->ignore(); + comboBox->setProperty("_pixmapstyle_combobox_pressed", true); + comboBox->repaint(); + return true; + case QEvent::MouseButtonRelease: + comboBox->setProperty("_pixmapstyle_combobox_pressed", false); + comboBox->repaint(); + if ( comboBox->view() ) { + if ( comboBox->view()->isVisible() || (!comboBox->isEnabled())) + comboBox->hidePopup(); + else + comboBox->showPopup(); + } + break; + default: ; + } + } + + if (qstrcmp(watched->metaObject()->className(),"QComboBoxPrivateContainer") == 0) { + if (event->type() == QEvent::Show) { + QWidget *widget = qobject_cast<QWidget*>(watched); + int yPopup = widget->geometry().top(); + int yCombo = widget->parentWidget()->mapToGlobal(QPoint(0, 0)).y(); + QRect geom = widget->geometry(); + const QPixmapStyleDescriptor &desc = d->descriptors.value(DD_ButtonEnabled); + const bool up = yPopup < yCombo; + geom.moveTop(geom.top() + (up ? desc.margins.top() : -desc.margins.bottom())); + widget->setGeometry(geom); + widget->setProperty("_pixmapstyle_combobox_up", up); + widget->parentWidget()->setProperty("_pixmapstyle_combobox_up", up); + } + } + + return QCommonStyle::eventFilter(watched, event); +} + +/*! + \fn void QPixmapStyle::addDescriptor(QPixmapStyle::ControlDescriptor control, const QString &fileName, QMargins margins, QTileRules tileRules) + + Associates the pixmap having the given \a fileName with the given \a control. The \a margins parameter describe the boundaries + of the pixmap's top-left, top-right, bottom-left and bottom-right corners, as well as the left, right, top and bottorm segments + and the middle. The \a tileRules parameter describes how QPixmapStyle is supposed to handle the scaling of the center of the pixmap. + + Use QPixmapStyle::addPixmap() for controls that are not resizable. + + \snippet styles/qcustompixmapstyle.cpp 1 + + \sa addPixmap, copyDescriptor + +*/ +void QPixmapStyle::addDescriptor(QPixmapStyle::ControlDescriptor control, const QString &fileName, + QMargins margins, QTileRules tileRules) +{ + Q_D(QPixmapStyle); + + QPixmapStyleDescriptor desc; + QImage image(fileName); + + if (image.isNull()) + return; + + desc.fileName = fileName; + desc.margins = margins; + desc.tileRules = tileRules; + desc.size = image.size(); + + d->descriptors[control] = desc; +} + +/*! + \fn void QPixmapStyle::copyDescriptor(QPixmapStyle::ControlDescriptor source, QPixmapStyle::ControlDescriptor dest) + + Copies the data associated with the \a source descriptor to the \a dest descriptor. + + \snippet styles/qcustompixmapstyle.cpp 2 +*/ + +void QPixmapStyle::copyDescriptor(QPixmapStyle::ControlDescriptor source, + QPixmapStyle::ControlDescriptor dest) +{ + Q_D(QPixmapStyle); + d->descriptors[dest] = d->descriptors.value(source); +} + +/*! + \fn void QPixmapStyle::drawCachedPixmap(QPixmapStyle::ControlDescriptor control, const QRect &rect, QPainter *painter) const + + Draws the image associated with the current \a control on the given \a rect using the given \a painter. +*/ +void QPixmapStyle::drawCachedPixmap(QPixmapStyle::ControlDescriptor control, const QRect &rect, + QPainter *p) const +{ + Q_D(const QPixmapStyle); + if (!d->descriptors.contains(control)) + return; + const QPixmapStyleDescriptor &desc = d->descriptors.value(control); + const QPixmap pix = d->getCachedPixmap(control, desc, rect.size()); + Q_ASSERT(!pix.isNull()); + p->drawPixmap(rect, pix); +} + +/*! + \fn void QPixmapStyle::addPixmap(ControlPixmap control, const QString &fileName, QMargins margins) + + Use this function to style statically sized controls such as check boxes. + + \sa addDescriptor, copyPixmap +*/ +void QPixmapStyle::addPixmap(ControlPixmap control, const QString &fileName, + QMargins margins) +{ + Q_D(QPixmapStyle); + + QPixmapStylePixmap pix; + QPixmap image(fileName); + + if (image.isNull()) + return; + + pix.pixmap = image; + pix.margins = margins; + + d->pixmaps[control] = pix; +} + +/* + \fn void QPixmapStyle::copyPixmap(QPixmapStyle::ControlPixmap source, QPixmapStyle::ControlPixmap dest) + + Copies the data associated with the \a source pixmap to the \a dest pixmap. + + \sa addPixmap, addDescriptor, copyDescriptor +*/ +void QPixmapStyle::copyPixmap(QPixmapStyle::ControlPixmap source, QPixmapStyle::ControlPixmap dest) +{ + Q_D(QPixmapStyle); + d->pixmaps[dest] = d->pixmaps.value(source); +} + +/*! + \internal + + Constructs a QPixmapStyle object. +*/ +QPixmapStyle::QPixmapStyle(QPixmapStylePrivate &dd) + : QCommonStyle(dd) +{} + +void QPixmapStyle::drawPushButton(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + const bool checked = option->state & State_On; + const bool pressed = option->state & State_Sunken; + const bool enabled = option->state & State_Enabled; + + ControlDescriptor control = PB_Enabled; + if (enabled) + control = pressed ? PB_Pressed : (checked ? PB_Checked : PB_Enabled); + else + control = checked ? PB_PressedDisabled : PB_Disabled; + drawCachedPixmap(control, option->rect, painter); +} + +void QPixmapStyle::drawLineEdit(const QStyleOption *option, + QPainter *painter, const QWidget *widget) const +{ + // Don't draw for the line edit inside a combobox + if (widget && qobject_cast<const QComboBox*>(widget->parentWidget())) + return; + + const bool enabled = option->state & State_Enabled; + const bool focused = option->state & State_HasFocus; + ControlDescriptor control = enabled ? (focused ? LE_Focused : LE_Enabled) : LE_Disabled; + drawCachedPixmap(control, option->rect, painter); +} + +void QPixmapStyle::drawTextEdit(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + const bool enabled = option->state & State_Enabled; + const bool focused = option->state & State_HasFocus; + ControlDescriptor control = enabled ? (focused ? TE_Focused : TE_Enabled) : TE_Disabled; + drawCachedPixmap(control, option->rect, painter); +} + +void QPixmapStyle::drawCheckBox(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + Q_D(const QPixmapStyle); + + const QStyleOptionButton *button = qstyleoption_cast<const QStyleOptionButton*>(option); + + const bool down = button->state & State_Sunken; + const bool enabled = button->state & State_Enabled; + const bool on = button->state & State_On; + + ControlPixmap control; + if (enabled) + control = on ? (down ? CB_PressedChecked : CB_Checked) : (down ? CB_Pressed : CB_Enabled); + else + control = on ? CB_DisabledChecked : CB_Disabled; + painter->drawPixmap(button->rect, d->pixmaps.value(control).pixmap); +} + +void QPixmapStyle::drawRadioButton(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + Q_D(const QPixmapStyle); + + const QStyleOptionButton *button = qstyleoption_cast<const QStyleOptionButton*>(option); + + const bool down = button->state & State_Sunken; + const bool enabled = button->state & State_Enabled; + const bool on = button->state & State_On; + + ControlPixmap control; + if (enabled) + control = on ? RB_Checked : (down ? RB_Pressed : RB_Enabled); + else + control = on ? RB_DisabledChecked : RB_Disabled; + painter->drawPixmap(button->rect, d->pixmaps.value(control).pixmap); +} + +void QPixmapStyle::drawPanelItemViewItem(const QStyleOption *option, QPainter *painter, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + ControlPixmap cp = ID_Separator; + ControlDescriptor cd = ID_Selected; + + if (widget && widget->property("_pixmap_combobox_list").toBool()) { + cp = DD_ItemSeparator; + cd = DD_ItemSelected; + } + + QPixmap pix = d->pixmaps.value(cp).pixmap; + QRect rect = option->rect; + rect.setBottom(rect.top() + pix.height()-1); + painter->drawPixmap(rect, pix); + if (option->state & QStyle::State_Selected) { + rect = option->rect; + rect.setTop(rect.top() + pix.height()); + drawCachedPixmap(cd, rect, painter); + } +} + +void QPixmapStyle::drawProgressBarBackground(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + bool vertical = false; + if (const QStyleOptionProgressBar *pb = + qstyleoption_cast<const QStyleOptionProgressBar *>(option)) { + vertical = pb->orientation == Qt::Vertical; + } + drawCachedPixmap(vertical ? PB_VBackground : PB_HBackground, option->rect, painter); +} + +void QPixmapStyle::drawProgressBarLabel(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + if (const QStyleOptionProgressBar *pb = + qstyleoption_cast<const QStyleOptionProgressBar *>(option)) { + const bool vertical = pb->orientation == Qt::Vertical; + if (!vertical) { + QPalette::ColorRole textRole = QPalette::ButtonText; + proxy()->drawItemText(painter, pb->rect, + Qt::AlignCenter | Qt::TextSingleLine, pb->palette, + pb->state & State_Enabled, pb->text, textRole); + } + } +} + +void QPixmapStyle::drawProgressBarFill(const QStyleOption *option, + QPainter *painter, const QWidget *) const +{ + const QStyleOptionProgressBar *pbar = + qstyleoption_cast<const QStyleOptionProgressBar*>(option); + const bool vertical = pbar->orientation == Qt::Vertical; + const bool flip = (pbar->direction == Qt::RightToLeft) ^ pbar->invertedAppearance; + + if (pbar->progress == pbar->maximum) { + drawCachedPixmap(vertical ? PB_VComplete : PB_HComplete, option->rect, painter); + + } else { + if (pbar->progress == 0) + return; + const int maximum = pbar->maximum; + const qreal ratio = qreal(vertical?option->rect.height():option->rect.width())/maximum; + const int progress = pbar->progress*ratio; + + QRect optRect = option->rect; + if (vertical) { + if (flip) + optRect.setBottom(optRect.top()+progress-1); + else + optRect.setTop(optRect.bottom()-progress+1); + } else { + if (flip) + optRect.setLeft(optRect.right()-progress+1); + else + optRect.setRight(optRect.left()+progress-1); + } + + drawCachedPixmap(vertical ? PB_VContent : PB_HContent, optRect, painter); + } +} + +void QPixmapStyle::drawSlider(const QStyleOptionComplex *option, + QPainter *painter, const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider*>(option); + if (!slider) + return; + + const bool enabled = option->state & State_Enabled; + const bool pressed = option->state & State_Sunken; + const Qt::Orientation orient = slider->orientation; + + const QRect handle = proxy()->subControlRect(CC_Slider, option, SC_SliderHandle, widget); + if (option->subControls & SC_SliderGroove) { + QRect groove = proxy()->subControlRect(CC_Slider, option, SC_SliderGroove, widget); + if (groove.isValid()) { + // Draw the background + ControlDescriptor control; + if (orient == Qt::Horizontal) + control = enabled ? SG_HEnabled : SG_HDisabled; + else + control = enabled ? SG_VEnabled : SG_VDisabled; + drawCachedPixmap(control, groove, painter); + + // Draw the active part + if (orient == Qt::Horizontal) { + control = enabled ? (pressed ? SG_HActivePressed : SG_HActiveEnabled ) + : SG_HActiveDisabled; + } else { + control = enabled ? (pressed ? SG_VActivePressed : SG_VActiveEnabled ) + : SG_VActiveDisabled; + } + const QPixmapStyleDescriptor &desc = d->descriptors.value(control); + const QPixmap pix = d->getCachedPixmap(control, desc, groove.size()); + if (!pix.isNull()) { + groove.setRight(orient == Qt::Horizontal + ? handle.center().x() : handle.center().y()); + painter->drawPixmap(groove, pix, groove); + } + } + } + if (option->subControls & SC_SliderHandle) { + if (handle.isValid()) { + ControlPixmap pix; + if (orient == Qt::Horizontal) + pix = enabled ? (pressed ? SH_HPressed : SH_HEnabled) : SH_HDisabled; + else + pix = enabled ? (pressed ? SH_VPressed : SH_VEnabled) : SH_VDisabled; + painter->drawPixmap(handle, d->pixmaps.value(pix).pixmap); + } + } +} + +void QPixmapStyle::drawComboBox(const QStyleOptionComplex *option, + QPainter *painter, const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + const bool enabled = option->state & State_Enabled; + const bool pressed = widget->property("_pixmapstyle_combobox_pressed").toBool(); + const bool opened = option->state & State_On; + + ControlDescriptor control = + enabled ? (pressed ? DD_ButtonPressed : DD_ButtonEnabled) : DD_ButtonDisabled; + drawCachedPixmap(control, option->rect, painter); + + ControlPixmap cp = enabled ? (opened ? DD_ArrowOpen + : (pressed ? DD_ArrowPressed : DD_ArrowEnabled)) + : DD_ArrowDisabled; + QPixmapStylePixmap pix = d->pixmaps.value(cp); + QRect rect = comboBoxSubControlRect(option, SC_ComboBoxArrow, widget); + painter->drawPixmap(rect, pix.pixmap); +} + +void QPixmapStyle::drawScrollBar(const QStyleOptionComplex *option, + QPainter *painter, const QWidget *widget) const +{ + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + // Do not draw the scrollbar + if (slider->minimum == slider->maximum) + return; + + QRect rect = scrollBarSubControlRect(option, SC_ScrollBarSlider, widget); + ControlDescriptor control = slider->orientation == Qt::Horizontal + ? SB_Horizontal : SB_Vertical; + drawCachedPixmap(control, rect, painter); + } +} + +QSize QPixmapStyle::pushButtonSizeFromContents(const QStyleOption *option, + const QSize &contentsSize, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + const QPixmapStyleDescriptor &desc = d->descriptors.value(PB_Enabled); + const int bm = proxy()->pixelMetric(PM_ButtonMargin, option, widget); + + int w = contentsSize.width(); + int h = contentsSize.height(); + w += desc.margins.left() + desc.margins.right() + bm; + h += desc.margins.top() + desc.margins.bottom() + bm; + + return d->computeSize(desc, w, h); +} + +QSize QPixmapStyle::lineEditSizeFromContents(const QStyleOption *, + const QSize &contentsSize, const QWidget *) const +{ + Q_D(const QPixmapStyle); + + const QPixmapStyleDescriptor &desc = d->descriptors.value(LE_Enabled); + const int border = 2 * proxy()->pixelMetric(PM_DefaultFrameWidth); + + int w = contentsSize.width() + border + desc.margins.left() + desc.margins.right(); + int h = contentsSize.height() + border + desc.margins.top() + desc.margins.bottom(); + + return d->computeSize(desc, w, h); +} + +QSize QPixmapStyle::progressBarSizeFromContents(const QStyleOption *option, + const QSize &contentsSize, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + bool vertical = false; + if (const QStyleOptionProgressBar *pb = + qstyleoption_cast<const QStyleOptionProgressBar *>(option)) { + vertical = pb->orientation == Qt::Vertical; + } + QSize result = QCommonStyle::sizeFromContents(CT_Slider, option, contentsSize, widget); + if (vertical) { + const QPixmapStyleDescriptor desc = d->descriptors.value(PB_VBackground); + return QSize(desc.size.height(), result.height()); + } else { + const QPixmapStyleDescriptor desc = d->descriptors.value(PB_HBackground); + return QSize(result.width(), desc.size.height()); + } +} + +QSize QPixmapStyle::sliderSizeFromContents(const QStyleOption *option, + const QSize &contentsSize, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider*>(option); + if (!slider) + return QSize(); + + QSize result = QCommonStyle::sizeFromContents(CT_Slider, option, contentsSize, widget); + + const QPixmapStyleDescriptor desc = d->descriptors.value(slider->orientation == Qt::Horizontal + ? SG_HEnabled : SG_VEnabled); + + if (slider->orientation == Qt::Horizontal) + return QSize(result.width(), desc.size.height()); + else + return QSize(desc.size.width(), result.height()); +} + +QSize QPixmapStyle::comboBoxSizeFromContents(const QStyleOption *option, + const QSize &contentsSize, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + const QPixmapStyleDescriptor &desc = d->descriptors.value(DD_ButtonEnabled); + + QSize result = QCommonStyle::sizeFromContents(CT_ComboBox, option, contentsSize, widget); + return d->computeSize(desc, result.width(), result.height()); +} + +QSize QPixmapStyle::itemViewSizeFromContents(const QStyleOption *option, + const QSize &contentsSize, + const QWidget *widget) const +{ + Q_D(const QPixmapStyle); + + QSize size = QCommonStyle::sizeFromContents(CT_ItemViewItem, option, contentsSize, widget); + + ControlPixmap cp = ID_Separator; + ControlDescriptor cd = ID_Selected; + if (widget && widget->property("_pixmap_combobox_list").toBool()) { + cp = DD_ItemSeparator; + cd = DD_ItemSelected; + } + + const QPixmapStyleDescriptor &desc = d->descriptors.value(cd); + const QPixmapStylePixmap &pix = d->pixmaps.value(cp); + size.setHeight(qMax(size.height(), + desc.size.height() + pix.pixmap.height())); + return size; +} + +QRect QPixmapStyle::comboBoxSubControlRect(const QStyleOptionComplex *option, + QStyle::SubControl sc, const QWidget *) const +{ + Q_D(const QPixmapStyle); + + QRect r = option->rect; // Default size + const QPixmapStylePixmap &pix = d->pixmaps.value(DD_ArrowEnabled); + const QPixmapStyleDescriptor &desc = d->descriptors.value(DD_ButtonEnabled); + + switch (sc) { + case SC_ComboBoxArrow: + r.setRect(r.right() - pix.margins.right() - pix.pixmap.width(), + r.top() + pix.margins.top(), + pix.pixmap.width(), pix.pixmap.height()); + break; + case SC_ComboBoxEditField: + r.adjust(desc.margins.left(), desc.margins.right(), + -desc.margins.right(), -desc.margins.bottom()); + r.setRight(r.right() - pix.margins.right() - pix.margins.left() - pix.pixmap.width()); + break; + default: + break; + } + + r = visualRect(option->direction, option->rect, r); + return r; +} + +QRect QPixmapStyle::scrollBarSubControlRect(const QStyleOptionComplex *option, + QStyle::SubControl sc, const QWidget *) const +{ + if (const QStyleOptionSlider *slider = + qstyleoption_cast<const QStyleOptionSlider*>(option)) { + int length = (slider->orientation == Qt::Horizontal) + ? slider->rect.width() : slider->rect.height(); + int page = length * slider->pageStep + / (slider->maximum - slider->minimum + slider->pageStep); + int pos = length * slider->sliderValue + / (slider->maximum - slider->minimum + slider->pageStep); + pos = qMin(pos+page, length) - page; + + QRect rect = slider->rect; + + if (slider->orientation == Qt::Horizontal) { + switch (sc) { + case SC_ScrollBarAddPage: + rect.setLeft(pos+page); + return rect; + case SC_ScrollBarSubPage: + rect.setRight(pos); + return rect; + case SC_ScrollBarGroove: + return rect; + case SC_ScrollBarSlider: + rect.setLeft(pos); + rect.setRight(pos+page); + return rect; + default: ; + } + } else { + switch (sc) { + case SC_ScrollBarAddPage: + rect.setTop(pos+page); + return rect; + case SC_ScrollBarSubPage: + rect.setBottom(pos); + return rect; + case SC_ScrollBarGroove: + return rect; + case SC_ScrollBarSlider: + rect.setTop(pos); + rect.setBottom(pos+page); + return rect; + default: ; + } + } + } + return QRect(); +} + +QPixmap QPixmapStylePrivate::scale(int w, int h, const QPixmap &pixmap, const QPixmapStyleDescriptor &desc) +{ + QPixmap result(w, h); + { + const QColor transparent(0, 0, 0, 0); + result.fill( transparent ); + QPainter p( &result ); + const QMargins margins = desc.margins; + qDrawBorderPixmap(&p, result.rect(), margins, pixmap, + pixmap.rect(), margins, desc.tileRules); + } + return result; +} + +QPixmap QPixmapStylePrivate::getCachedPixmap(QPixmapStyle::ControlDescriptor control, + const QPixmapStyleDescriptor &desc, + const QSize &size) const +{ + Q_Q(const QPixmapStyle); + + const QString sizeString = QString::number(size.width()) % QLatin1Char('*') + % QString::number(size.height()); + const QString key = QLatin1String(q->metaObject()->className()) % QString::number(control) + % QLatin1Char('@') % sizeString; + + QPixmap result; + + if (!QPixmapCache::find( key, &result)) { + QPixmap source(desc.fileName); + result = scale(size.width(), size.height(), source, desc); + QPixmapCache::insert(key, result); + } + return result; +} + +QSize QPixmapStylePrivate::computeSize(const QPixmapStyleDescriptor &desc, int width, int height) const +{ + if (desc.tileRules.horizontal != Qt::RepeatTile) + width = qMax(width, desc.size.width()); + if (desc.tileRules.vertical != Qt::RepeatTile) + height = qMax(height, desc.size.height()); + return QSize(width, height); +} + +QT_END_NAMESPACE |