diff options
Diffstat (limited to 'tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp')
-rw-r--r-- | tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp b/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp new file mode 100644 index 0000000000..42a5fa7914 --- /dev/null +++ b/tests/manual/examples/widgets/widgets/icons/iconpreviewarea.cpp @@ -0,0 +1,130 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "iconpreviewarea.h" + +#include <QGridLayout> +#include <QLabel> +#include <QWindow> + +//! [0] +IconPreviewArea::IconPreviewArea(QWidget *parent) + : QWidget(parent) +{ + QGridLayout *mainLayout = new QGridLayout(this); + + for (int row = 0; row < NumStates; ++row) { + stateLabels[row] = createHeaderLabel(IconPreviewArea::iconStateNames().at(row)); + mainLayout->addWidget(stateLabels[row], row + 1, 0); + } + Q_ASSERT(NumStates == 2); + + for (int column = 0; column < NumModes; ++column) { + modeLabels[column] = createHeaderLabel(IconPreviewArea::iconModeNames().at(column)); + mainLayout->addWidget(modeLabels[column], 0, column + 1); + } + Q_ASSERT(NumModes == 4); + + for (int column = 0; column < NumModes; ++column) { + for (int row = 0; row < NumStates; ++row) { + pixmapLabels[column][row] = createPixmapLabel(); + mainLayout->addWidget(pixmapLabels[column][row], row + 1, column + 1); + } + } +} +//! [0] + +//! [42] +QList<QIcon::Mode> IconPreviewArea::iconModes() +{ + static const QList<QIcon::Mode> result = { QIcon::Normal, QIcon::Active, QIcon::Disabled, + QIcon::Selected }; + return result; +} + +QList<QIcon::State> IconPreviewArea::iconStates() +{ + static const QList<QIcon::State> result = { QIcon::Off, QIcon::On }; + return result; +} + +QStringList IconPreviewArea::iconModeNames() +{ + static const QStringList result = {tr("Normal"), tr("Active"), tr("Disabled"), tr("Selected")}; + return result; +} + +QStringList IconPreviewArea::iconStateNames() +{ + static const QStringList result = {tr("Off"), tr("On")}; + return result; +} +//! [42] + +//! [1] +void IconPreviewArea::setIcon(const QIcon &icon) +{ + this->icon = icon; + updatePixmapLabels(); +} +//! [1] + +//! [2] +void IconPreviewArea::setSize(const QSize &size) +{ + if (size != this->size) { + this->size = size; + updatePixmapLabels(); + } +} +//! [2] + +//! [3] +QLabel *IconPreviewArea::createHeaderLabel(const QString &text) +{ + QLabel *label = new QLabel(tr("<b>%1</b>").arg(text)); + label->setAlignment(Qt::AlignCenter); + return label; +} +//! [3] + +//! [4] +QLabel *IconPreviewArea::createPixmapLabel() +{ + QLabel *label = new QLabel; + label->setEnabled(false); + label->setAlignment(Qt::AlignCenter); + label->setFrameShape(QFrame::Box); + label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding); + label->setBackgroundRole(QPalette::Base); + label->setAutoFillBackground(true); + label->setMinimumSize(132, 132); + return label; +} +//! [4] + +//! [5] +void IconPreviewArea::updatePixmapLabels() +{ + for (int column = 0; column < NumModes; ++column) { + for (int row = 0; row < NumStates; ++row) { + const QPixmap pixmap = + icon.pixmap(size, devicePixelRatio(), IconPreviewArea::iconModes().at(column), + IconPreviewArea::iconStates().at(row)); + QLabel *pixmapLabel = pixmapLabels[column][row]; + pixmapLabel->setPixmap(pixmap); + pixmapLabel->setEnabled(!pixmap.isNull()); + QString toolTip; + if (!pixmap.isNull()) { + const QSize actualSize = icon.actualSize(size); + toolTip = + tr("Size: %1x%2\nActual size: %3x%4\nDevice pixel ratio: %5") + .arg(size.width()).arg(size.height()) + .arg(actualSize.width()).arg(actualSize.height()) + .arg(pixmap.devicePixelRatio()); + } + pixmapLabel->setToolTip(toolTip); + } + } +} +//! [5] |