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Diffstat (limited to 'src/effects/ConicalGradient.qml')
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diff --git a/src/effects/ConicalGradient.qml b/src/effects/ConicalGradient.qml deleted file mode 100644 index ef5468b..0000000 --- a/src/effects/ConicalGradient.qml +++ /dev/null @@ -1,342 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2020 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Graphical Effects 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 2.12 -import QtGraphicalEffects.private 1.12 - -/*! - \qmltype ConicalGradient - \inqmlmodule QtGraphicalEffects - \since QtGraphicalEffects 1.0 - \inherits QtQuick2::Item - \ingroup qtgraphicaleffects-gradient - \brief Draws a conical gradient. - - A gradient is defined by two or more colors, which are blended seamlessly. - The colors start from the specified angle and end at 360 degrees larger - angle value. - - \table - \header - \li Effect applied - \row - \li \image ConicalGradient.png - \endtable - - \section1 Example - - The following example shows how to apply the effect. - \snippet ConicalGradient-example.qml example - -*/ -Item { - id: rootItem - - /*! - This property allows the effect output pixels to be cached in order to - improve the rendering performance. - - Every time the source or effect properties are changed, the pixels in - the cache must be updated. Memory consumption is increased, because an - extra buffer of memory is required for storing the effect output. - - It is recommended to disable the cache when the source or the effect - properties are animated. - - By default, the property is set to \c false. - - */ - property bool cached: false - - /*! - This property defines the starting angle where the color at the gradient - position of 0.0 is rendered. Colors at larger position values are - rendered into larger angle values and blended seamlessly. Angle values - increase clockwise. - - \table - \header - \li Output examples with different angle values - \li - \li - \row - \li \image ConicalGradient_angle1.png - \li \image ConicalGradient_angle2.png - \li \image ConicalGradient_angle3.png - \row - \li \b { angle: 0 } - \li \b { angle: 45 } - \li \b { angle: 185 } - \row - \li \l horizontalOffset: 0 - \li \l horizontalOffset: 0 - \li \l horizontalOffset: 0 - \row - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \endtable - - */ - property real angle: 0.0 - - /*! - \qmlproperty real QtGraphicalEffects::ConicalGradient::horizontalOffset - \qmlproperty real QtGraphicalEffects::ConicalGradient::verticalOffset - - The horizontalOffset and verticalOffset properties define the offset in - pixels for the center point of the gradient compared to the item center. - - The value ranges from -inf to inf. By default, the properties are set to \c - 0. - - \table - \header - \li Output examples with different horizontalOffset values - \li - \li - \row - \li \image ConicalGradient_horizontalOffset1.png - \li \image ConicalGradient_horizontalOffset2.png - \li \image ConicalGradient_horizontalOffset3.png - \row - \li \b { horizontalOffset: -50 } - \li \b { horizontalOffset: 0 } - \li \b { horizontalOffset: 50 } - \row - \li \l angle: 0 - \li \l angle: 0 - \li \l angle: 0 - \row - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \endtable - */ - property real horizontalOffset: 0.0 - property real verticalOffset: 0.0 - - /*! - This property defines the item that is going to be filled with gradient. - Source item gets rendered into an intermediate pixel buffer and the - alpha values from the result are used to determine the gradient's pixels - visibility in the display. The default value for source is undefined and - in that case whole effect area is filled with gradient. - - \table - \header - \li Output examples with different source values - \li - \row - \li \image ConicalGradient_maskSource1.png - \li \image ConicalGradient_maskSource2.png - \row - \li \b { source: undefined } - \li \b { source: } - \row - \li \l angle: 0 - \li \l angle: 0 - \row - \li \l horizontalOffset: 0 - \li \l horizontalOffset: 0 - \row - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \endtable - - - \note It is not supported to let the effect include itself, for - instance by setting source to the effect's parent. - */ - property variant source - -/*! - A gradient is defined by two or more colors, which are blended seamlessly. - The colors are specified as a set of GradientStop child items, each of which - defines a position on the gradient (from 0.0 to 1.0), and a color. - The position of each GradientStop is defined by the position property. - The color is defined by the color property. - - \table - \header - \li Output examples with different gradient values - \li - \li - \row - \li \image ConicalGradient_gradient1.png - \li \image ConicalGradient_gradient2.png - \li \image ConicalGradient_gradient3.png - \row - \li \b {gradient:} \code -Gradient { - GradientStop { - position: 0.000 - color: Qt.rgba(1, 0, 0, 1) - } - GradientStop { - position: 0.167 - color: Qt.rgba(1, 1, 0, 1) - } - GradientStop { - position: 0.333 - color: Qt.rgba(0, 1, 0, 1) - } - GradientStop { - position: 0.500 - color: Qt.rgba(0, 1, 1, 1) - } - GradientStop { - position: 0.667 - color: Qt.rgba(0, 0, 1, 1) - } - GradientStop { - position: 0.833 - color: Qt.rgba(1, 0, 1, 1) - } - GradientStop { - position: 1.000 - color: Qt.rgba(1, 0, 0, 1) - } -} - \endcode - \li \b {gradient:} \code -Gradient { - GradientStop { - position: 0.0 - color: "#F0F0F0" - } - GradientStop { - position: 0.5 - color: "#000000" - } - GradientStop { - position: 1.0 - color: "#F0F0F0" - } -} - \endcode - \li \b {gradient:} \code -Gradient { - GradientStop { - position: 0.0 - color: "#00000000" - } - GradientStop { - position: 1.0 - color: "#FF000000" - } -} - \endcode - \row - \li \l angle: 0 - \li \l angle: 0 - \li \l angle: 0 - \row - \li \l horizontalOffset: 0 - \li \l horizontalOffset: 0 - \li \l horizontalOffset: 0 - \row - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \li \l verticalOffset: 0 - \endtable - -*/ - property Gradient gradient: Gradient { - GradientStop { position: 0.0; color: "white" } - GradientStop { position: 1.0; color: "black" } - } - - SourceProxy { - id: maskSourceProxy - input: rootItem.source - } - - Rectangle { - id: gradientRect - width: 16 - height: 256 - gradient: rootItem.gradient - smooth: true - } - - ShaderEffectSource { - id: cacheItem - anchors.fill: parent - visible: rootItem.cached - smooth: true - rotation: shaderItem.rotation - sourceItem: shaderItem - live: true - hideSource: visible - } - - ShaderEffect { - id: shaderItem - property variant gradientSource: ShaderEffectSource { - sourceItem: gradientRect - smooth: true - hideSource: true - visible: false - } - property variant maskSource: maskSourceProxy.output - property real startAngle: (rootItem.angle - 90) * Math.PI/180 - property variant center: Qt.point(0.5 + horizontalOffset / width, 0.5 + verticalOffset / height) - - anchors.fill: parent - - fragmentShader: maskSource == undefined ? noMaskShader : maskShader - - onFragmentShaderChanged: startAngleChanged() - - property string noMaskShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/conicalgradient_nomask.frag.qsb" - property string maskShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/conicalgradient_mask.frag.qsb" - } -} |