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Diffstat (limited to 'src/quicknativestyle/items/qquickstyleitemprogressbar.cpp')
-rw-r--r-- | src/quicknativestyle/items/qquickstyleitemprogressbar.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/quicknativestyle/items/qquickstyleitemprogressbar.cpp b/src/quicknativestyle/items/qquickstyleitemprogressbar.cpp new file mode 100644 index 0000000000..480e8981b5 --- /dev/null +++ b/src/quicknativestyle/items/qquickstyleitemprogressbar.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickstyleitemprogressbar.h" + +QFont QQuickStyleItemProgressBar::styleFont(QQuickItem *control) const +{ + return style()->font(QStyle::CE_ProgressBarLabel, controlSize(control)); +} + +void QQuickStyleItemProgressBar::connectToControl() const +{ + QQuickStyleItem::connectToControl(); + auto progressBar = control<QQuickProgressBar>(); + connect(progressBar, &QQuickProgressBar::fromChanged, this, &QQuickStyleItem::markImageDirty); + connect(progressBar, &QQuickProgressBar::toChanged, this, &QQuickStyleItem::markImageDirty); + connect(progressBar, &QQuickProgressBar::positionChanged, this, &QQuickStyleItem::markImageDirty); +} + +StyleItemGeometry QQuickStyleItemProgressBar::calculateGeometry() +{ + QStyleOptionProgressBar styleOption; + initStyleOption(styleOption); + + StyleItemGeometry geometry; + geometry.minimumSize = style()->sizeFromContents(QStyle::CT_ProgressBar, &styleOption, QSize(0, 0)); + + // From qprogressbar.cpp in qtbase: + const int cw = style()->pixelMetric(QStyle::PM_ProgressBarChunkWidth, &styleOption); + QFontMetrics fm(control<QQuickProgressBar>()->font()); + QSize size = QSize(qMax(9, cw) * 7 + fm.horizontalAdvance(QLatin1Char('0')) * 4, fm.height() + 8); + if (!(styleOption.state & QStyle::State_Horizontal)) + size = size.transposed(); + + geometry.implicitSize = style()->sizeFromContents(QStyle::CT_ProgressBar, &styleOption, size); + styleOption.rect = QRect(QPoint(0, 0), geometry.implicitSize); + geometry.contentRect = style()->subElementRect(QStyle::SE_ProgressBarContents, &styleOption); + geometry.layoutRect = style()->subElementRect(QStyle::SE_ProgressBarLayoutItem, &styleOption); + geometry.ninePatchMargins = style()->ninePatchMargins(QStyle::CE_ProgressBar, &styleOption, geometry.minimumSize); + + return geometry; +} + +void QQuickStyleItemProgressBar::paintEvent(QPainter *painter) const +{ + QStyleOptionProgressBar styleOption; + initStyleOption(styleOption); +#ifndef Q_OS_MACOS + const QRect r = styleOption.rect; +#endif + // Note: on macOS, the groove will paint both the background and the contents + styleOption.rect = style()->subElementRect(QStyle::SE_ProgressBarGroove, &styleOption); + style()->drawControl(QStyle::CE_ProgressBarGroove, &styleOption, painter); +#ifndef Q_OS_MACOS + styleOption.rect = r; + styleOption.rect = style()->subElementRect(QStyle::SE_ProgressBarContents, &styleOption); + style()->drawControl(QStyle::CE_ProgressBarContents, &styleOption, painter); +#endif +} + +void QQuickStyleItemProgressBar::initStyleOption(QStyleOptionProgressBar &styleOption) const +{ + initStyleOptionBase(styleOption); + auto progressBar = control<QQuickProgressBar>(); + + styleOption.state = QStyle::State_Horizontal; + + if (progressBar->isIndeterminate()) { + styleOption.minimum = 0; + styleOption.maximum = 0; + } else if (progressBar->to() - progressBar->from() < 100) { + // Add some range to support float numbers + styleOption.minimum = 0; + styleOption.maximum = (progressBar->to() - progressBar->from()) * 100; + styleOption.progress = (progressBar->value() - progressBar->from()) * 100; + } else { + styleOption.minimum = progressBar->from(); + styleOption.maximum = progressBar->to(); + styleOption.progress = progressBar->value(); + } +} |