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Diffstat (limited to 'examples/quick/shapes/content/pathitemsampling.qml')
| -rw-r--r-- | examples/quick/shapes/content/pathitemsampling.qml | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/examples/quick/shapes/content/pathitemsampling.qml b/examples/quick/shapes/content/pathitemsampling.qml new file mode 100644 index 0000000000..6b651f8a1d --- /dev/null +++ b/examples/quick/shapes/content/pathitemsampling.qml @@ -0,0 +1,186 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module 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 2.9 +import QtQuick.Shapes 1.0 + +Rectangle { + id: root + width: 1024 + height: 768 + + property color col: "lightsteelblue" + gradient: Gradient { + GradientStop { position: 0.0; color: Qt.tint(root.col, "#20FFFFFF") } + GradientStop { position: 0.1; color: Qt.tint(root.col, "#20AAAAAA") } + GradientStop { position: 0.9; color: Qt.tint(root.col, "#20666666") } + GradientStop { position: 1.0; color: Qt.tint(root.col, "#20000000") } + } + + Row { + anchors.fill: parent + anchors.margins: 20 + spacing: 40 + + Column { + spacing: 40 + + Text { + text: "Original" + } + + // A simple Shape without anything special. + Rectangle { + color: "lightGray" + width: 400 + height: 200 + + Shape { + x: 30 + y: 20 + width: 50 + height: 50 + scale: 2 + + ShapePath { + strokeColor: "green" + NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 } + fillColor: "transparent" + capStyle: ShapePath.RoundCap + + startX: 40; startY: 30 + PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 } + PathLine { x: 150; y: 80 } + PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 } + } + } + } + + Text { + text: "Supersampling (2x)" + } + + // Now let's use 2x supersampling via layers. This way the entire subtree + // is rendered into an FBO twice the size and then drawn with linear + // filtering. This allows having some level of AA even when there is no + // support for multisample framebuffers. + Rectangle { + id: supersampledItem + color: "lightGray" + width: 400 + height: 200 + + layer.enabled: true + layer.smooth: true + layer.textureSize: Qt.size(supersampledItem.width * 2, supersampledItem.height * 2) + + Shape { + x: 30 + y: 20 + width: 50 + height: 50 + scale: 2 + + ShapePath { + strokeColor: "green" + NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 } + fillColor: "transparent" + capStyle: ShapePath.RoundCap + + startX: 40; startY: 30 + PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 } + PathLine { x: 150; y: 80 } + PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 } + } + } + } + } + + Column { + spacing: 40 + + Text { + text: "Multisampling (4x)" + } + + // Now let's use 4x MSAA, again via layers. This needs support for + // multisample renderbuffers and framebuffer blits. + Rectangle { + color: "lightGray" + width: 400 + height: 200 + + layer.enabled: true + layer.smooth: true + layer.samples: 4 + + Shape { + x: 30 + y: 20 + width: 50 + height: 50 + scale: 2 + + ShapePath { + strokeColor: "green" + NumberAnimation on strokeWidth { from: 1; to: 20; duration: 5000 } + fillColor: "transparent" + capStyle: ShapePath.RoundCap + + startX: 40; startY: 30 + PathQuad { x: 50; y: 80; controlX: 0; controlY: 80 } + PathLine { x: 150; y: 80 } + PathQuad { x: 160; y: 30; controlX: 200; controlY: 80 } + } + } + } + } + } +} |