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Diffstat (limited to 'tests/manual/quick/pdf/pessimizedListView.qml')
-rw-r--r-- | tests/manual/quick/pdf/pessimizedListView.qml | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/tests/manual/quick/pdf/pessimizedListView.qml b/tests/manual/quick/pdf/pessimizedListView.qml new file mode 100644 index 000000000..4ae0edabe --- /dev/null +++ b/tests/manual/quick/pdf/pessimizedListView.qml @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +import QtQuick 2.14 +import QtQuick.Controls 2.14 +import QtQuick.Layouts 1.14 +import QtQuick.Pdf 5.15 +import Qt.labs.platform 1.1 as P + +ApplicationWindow { + width: 900 + height: 1000 + color: "lightgrey" + title: doc.source + " scale " + imageScale.toFixed(2) + visible: true + property real imageScale: 1 + + header: ToolBar { + RowLayout { + anchors.fill: parent + anchors.rightMargin: 6 + ToolButton { + action: Action { + text: "🗁" + shortcut: StandardKey.Open + onTriggered: fileDialog.open() + } + } + ToolButton { + action: Action { + text: "⊕" + shortcut: StandardKey.ZoomIn + onTriggered: imageScale *= Math.sqrt(2) + } + } + ToolButton { + action: Action { + text: "⊖" + shortcut: StandardKey.ZoomOut + onTriggered: imageScale /= Math.sqrt(2) + } + } + ToolButton { + action: Action { + text: "1x" + shortcut: "Ctrl+0" + onTriggered: imageScale = 1 + } + } + + Label { + text: "Pixels/point:" + } + SpinBox { + id: oversamplingSB + from: 1; to: 8; value: 4 + } + + Label { + text: "cacheBuffer:" + } + SpinBox { + id: cacheBufferSB + from: 0; to: 1000; stepSize: 50; value: 100 + } + + CheckBox { + id: asyncCB + text: "async" + } + + CheckBox { + id: cacheCB + text: "cache" + } + } + } + + PdfDocument { + id: doc + source: "test.pdf" + } + + P.FileDialog { + id: fileDialog + title: "Open a PDF file" + nameFilters: [ "PDF files (*.pdf)" ] + onAccepted: doc.source = file + } + + ListView { + id: listView + anchors.fill: parent + anchors.margins: 10 + model: doc.pageCount + spacing: 6 + cacheBuffer: cacheBufferSB.value + ScrollBar.vertical: ScrollBar { } + delegate: Rectangle { + id: paper + width: Math.max(60, image.width) * imageScale + height: 100 * imageScale + BusyIndicator { + anchors.centerIn: parent + running: image.status === Image.Loading + } + Image { + id: image + scale: imageScale + anchors.centerIn: parent + sourceSize.width: doc.pagePointSize(index).width * oversamplingSB.value + height: 100 + fillMode: Image.PreserveAspectFit + objectName: "PDF page " + index + source: doc.source + currentFrame: index + asynchronous: asyncCB.checked + cache: cacheCB.checked + } + } + } + + Text { + anchors.bottom: parent.bottom + anchors.right: parent.right + text: "page " + Math.max(1, (listView.indexAt(0, listView.contentY) + 1)) + " of " + doc.pageCount + } +} |