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Diffstat (limited to 'tests/manual/pointer/tabletCanvasDrawing.qml')
| -rw-r--r-- | tests/manual/pointer/tabletCanvasDrawing.qml | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/tests/manual/pointer/tabletCanvasDrawing.qml b/tests/manual/pointer/tabletCanvasDrawing.qml new file mode 100644 index 0000000000..c340dee5f4 --- /dev/null +++ b/tests/manual/pointer/tabletCanvasDrawing.qml @@ -0,0 +1,242 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the manual tests 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 2.15 +import QtQuick.Layouts 1.15 +import "content" + +Rectangle { + width: 1024 + height: 1024 + color: "#444" + + ColumnLayout { + x: -15; width: 80 + height: parent.height + Slider { + id: hueSlider + width: 80; height: 200 + Layout.fillHeight: true + label: "hue" + Rectangle { + color: "beige" + width: 30 + height: 25 + anchors.bottom: parent.bottom + anchors.bottomMargin: 2 + anchors.horizontalCenter: parent.horizontalCenter + Rectangle { + border.color: "white" + color: canvas.drawingColor + anchors.fill: parent + } + } + } + Slider { + id: saturationSlider + width: 80; height: 200 + Layout.fillHeight: true + label: "sat" + } + Slider { + id: lightnessSlider + width: 80; height: 200 + Layout.fillHeight: true + label: "light" + } + } + + ColumnLayout { + x: parent.width - 65; width: 80 + height: parent.height + Slider { + id: widthSlider + width: 80; height: 200 + Layout.fillHeight: true + label: "width" + } + Slider { + id: alphaSlider + width: 80; height: 200 + Layout.fillHeight: true + label: "alpha" + } + } + + Rectangle { + id: rect + width: 640 + height: 480 + color: "beige" + anchors { + fill: parent + margins: 10 + leftMargin: 50 + rightMargin: 50 + } + + Canvas { + id: canvas + anchors.fill: parent + antialiasing: true + renderTarget: Canvas.FramebufferObject + property color drawingColor: Qt.hsla(hueSlider.value / 100.0, + saturationSlider.value / 100.0, + lightnessSlider.value / 100.0, + alphaSlider.value / 100.0) + property var points: [] + property var pressures: [] + property var pointerType: PointerDevice.Pen + onPaint: { + if (points.length < 2) + return + var ctx = canvas.getContext('2d'); + ctx.save() + ctx.strokeStyle = pointerType === PointerDevice.Pen ? drawingColor : "beige" + ctx.lineCap = "round" + if (pressures.length === points.length) { + for (var i = 1; i < points.length; i++) { + ctx.lineWidth = pressures[i] * widthSlider.value + ctx.beginPath() + ctx.moveTo(points[i - 1].x, points[i - 1].y) + ctx.lineTo(points[i].x, points[i].y) + ctx.stroke() + } + points = points.slice(points.length - 2, 1) + pressures = pressures.slice(pressures.length - 2, 1) + } else { + ctx.beginPath() + ctx.moveTo(points[0].x, points[0].y) + for (var i = 1; i < points.length; i++) + ctx.lineTo(points[i].x, points[i].y) + ctx.lineWidth = widthSlider + ctx.stroke() + points = points.slice(points.length - 2, 1) + pressures = [] + } + ctx.restore() + } + } + + PointHandler { + acceptedPointerTypes: PointerDevice.Pen + onActiveChanged: + if (active) { + canvas.pointerType = PointerDevice.Pen + } else { + canvas.points = [] + canvas.pressures = [] + } + onPointChanged: + if (active) { + canvas.points.push(point.position) + canvas.pressures.push(point.pressure) + canvas.requestPaint() + } + } + + PointHandler { + acceptedPointerTypes: PointerDevice.Eraser + onActiveChanged: + if (active) { + canvas.pointerType = PointerDevice.Eraser + } else { + canvas.points = [] + canvas.pressures = [] + } + onPointChanged: + if (active) { + canvas.points.push(point.position) + canvas.pressures.push(point.pressure) + canvas.requestPaint() + } + } + + HoverHandler { + id: stylusHandler + acceptedDevices: PointerDevice.Stylus + acceptedPointerTypes: PointerDevice.Pen + target: Image { + parent: rect + source: stylusHandler.point.rotation === 0 ? + "resources/cursor-pencil.png" : "resources/cursor-felt-marker.png" + visible: stylusHandler.hovered + rotation: stylusHandler.point.rotation + x: stylusHandler.point.position.x + y: stylusHandler.point.position.y + } + } + + HoverHandler { + id: airbrushHandler + acceptedDevices: PointerDevice.Airbrush + acceptedPointerTypes: PointerDevice.Pen + target: Image { + parent: rect + source: "resources/cursor-airbrush.png" + visible: airbrushHandler.hovered + x: airbrushHandler.point.position.x + y: airbrushHandler.point.position.y + } + } + + HoverHandler { + id: eraserHandler + acceptedPointerTypes: PointerDevice.Eraser + target: Image { + parent: rect + source: "resources/cursor-eraser.png" + visible: eraserHandler.hovered + x: eraserHandler.point.position.x + y: eraserHandler.point.position.y - 32 + } + } + } +} |