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Qt Quick Ultralite image_cache 示例
/****************************************************************************** ** ** Copyright (C) 2020 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Ultralite module. ** ** $QT_BEGIN_LICENSE:COMM$ ** ** 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. ** ** $QT_END_LICENSE$ ** ******************************************************************************/#include "ImageModel.h" ImageModelData imagePaths1[] = {ImageModelData("images/basse-terre-guadeloupe.jpg"), ImageModelData("images/grand-canyon-arizona.jpg"), ImageModelData("images/grand-canyon-national-park.jpg"), ImageModelData("images/Jokulsarlon-glacier-lagoon-iceland.jpg")}; ImageModelData imagePaths2[] = {ImageModelData("images/reine-lofoten-islands.jpg"), ImageModelData("images/sequoia-national-park.jpg"), ImageModelData("images/sogn-og-fjordane.jpg"), ImageModelData("images/yosemite-national-park.jpg")}; int ImageModel::count() const { return 4; } ImageModelData ImageModel::data(int idx) const { return swapImageSet ? imagePaths2[idx] : imagePaths1[idx]; } void ImageModel::swapImages() { swapImageSet = !swapImageSet; modelReset(); }