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/*
SPDX-FileCopyrightText: 2013 Martin Klapetek <mklapetek@kde.org>
SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
#include "kiconutilstest.h"
#include <kiconutils.h>
#include <QIcon>
#include <QPainter>
#include <QPixmap>
#include <QTest>
QTEST_MAIN(KIconUtilsTest)
void KIconUtilsTest::addOverlayTest()
{
QPixmap rectanglePixmap(32, 32);
rectanglePixmap.fill(Qt::red);
QIcon icon(rectanglePixmap);
QPixmap overlay(32, 32);
overlay.fill(Qt::blue);
QIcon overlayIcon(overlay);
QIcon iconWithOverlay = KIconUtils::addOverlay(icon, overlayIcon, Qt::BottomRightCorner);
QImage result = iconWithOverlay.pixmap(32, 32).toImage();
int bluePixels = 0;
int redPixels = 0;
// Go over the image and count red and blue pixels
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
if (qRed(result.pixel(x, y)) == 255) {
redPixels++;
} else if (qBlue(result.pixel(x, y)) == 255) {
bluePixels++;
}
}
}
// For icon of size 32x32, the overlay should be 16x16 (=256)
QCOMPARE(bluePixels, 256);
QCOMPARE(redPixels, 768);
// Try different size and position
rectanglePixmap = rectanglePixmap.scaled(96, 96);
icon = QIcon(rectanglePixmap);
overlay = overlay.scaled(96, 96);
overlayIcon = QIcon(overlay);
iconWithOverlay = KIconUtils::addOverlay(icon, overlayIcon, Qt::BottomRightCorner);
// Test if unsetting the overlay works;
// the result should have just one blue square
iconWithOverlay = KIconUtils::addOverlay(icon, QIcon(), Qt::BottomRightCorner);
iconWithOverlay = KIconUtils::addOverlay(icon, overlayIcon, Qt::TopLeftCorner);
result = iconWithOverlay.pixmap(96, 96).toImage();
bluePixels = 0;
redPixels = 0;
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
if (qRed(result.pixel(x, y)) == 255) {
redPixels++;
} else if (qBlue(result.pixel(x, y)) == 255) {
bluePixels++;
}
}
}
// 96x96 big icon will have 32x32 big overlay (=1024 blue pixels)
QCOMPARE(bluePixels, 1024);
QCOMPARE(redPixels, 8192);
// Try paint method
icon = QIcon(rectanglePixmap);
iconWithOverlay = KIconUtils::addOverlay(icon, overlayIcon, Qt::TopLeftCorner);
QPixmap a(96, 96);
QPainter p(&a);
iconWithOverlay.paint(&p, a.rect(), Qt::AlignCenter, QIcon::Normal, QIcon::Off);
result = a.toImage();
bluePixels = 0;
redPixels = 0;
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
if (qRed(result.pixel(x, y)) == 255) {
redPixels++;
} else if (qBlue(result.pixel(x, y)) == 255) {
bluePixels++;
}
}
}
// 96x96 big icon will have 32x32 big overlay (=1024 blue pixels)
QCOMPARE(bluePixels, 1024);
QCOMPARE(redPixels, 8192);
}
void KIconUtilsTest::addOverlaysTest()
{
QPixmap rectanglePixmap(32, 32);
rectanglePixmap.fill(Qt::red);
QIcon icon(rectanglePixmap);
QPixmap overlay(32, 32);
overlay.fill(Qt::blue);
QIcon overlayIcon(overlay);
QHash<Qt::Corner, QIcon> overlays;
overlays.insert(Qt::BottomRightCorner, overlayIcon);
overlays.insert(Qt::TopLeftCorner, overlayIcon);
QIcon iconWithOverlay = KIconUtils::addOverlays(icon, overlays);
QImage result = iconWithOverlay.pixmap(32, 32).toImage();
int bluePixels = 0;
int redPixels = 0;
// Go over the image and count red and blue pixels
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
if (qRed(result.pixel(x, y)) == 255) {
redPixels++;
} else if (qBlue(result.pixel(x, y)) == 255) {
bluePixels++;
}
}
}
// Two blue overlays in icon size 32x32 would intersect with 16 pixels,
// so the amount of blue pixels should be 2x256-16 = 496
QCOMPARE(bluePixels, 496);
QCOMPARE(redPixels, 528);
// Try different size
rectanglePixmap = rectanglePixmap.scaled(96, 96);
icon = QIcon(rectanglePixmap);
overlay = overlay.scaled(96, 96);
overlayIcon = QIcon(overlay);
// Clear the old sizes first
overlays.clear();
overlays.insert(Qt::BottomRightCorner, overlayIcon);
overlays.insert(Qt::TopRightCorner, overlayIcon);
overlays.insert(Qt::TopLeftCorner, overlayIcon);
// Now it will have 3 overlays
iconWithOverlay = KIconUtils::addOverlays(icon, overlays);
QPixmap a(96, 96);
QPainter p(&a);
iconWithOverlay.paint(&p, a.rect(), Qt::AlignCenter, QIcon::Normal, QIcon::Off);
result = a.toImage();
bluePixels = 0;
redPixels = 0;
for (int y = 0; y < result.height(); ++y) {
for (int x = 0; x < result.width(); ++x) {
if (qRed(result.pixel(x, y)) == 255) {
redPixels++;
} else if (qBlue(result.pixel(x, y)) == 255) {
bluePixels++;
}
}
}
// 96x96 big icon will have 32x32 big overlays (=3072 blue pixels)
QCOMPARE(bluePixels, 3072);
QCOMPARE(redPixels, 6144);
}
#include "moc_kiconutilstest.cpp"
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