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Diffstat (limited to 'examples/quick/pointerhandlers/tapHandler.qml')
| -rw-r--r-- | examples/quick/pointerhandlers/tapHandler.qml | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/examples/quick/pointerhandlers/tapHandler.qml b/examples/quick/pointerhandlers/tapHandler.qml new file mode 100644 index 0000000000..90cf778ede --- /dev/null +++ b/examples/quick/pointerhandlers/tapHandler.qml @@ -0,0 +1,222 @@ +/**************************************************************************** +** +** Copyright (C) 2021 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 +import "components" + +Item { + width: 800 + height: 480 + + Rectangle { + id: rect + anchors.fill: parent; anchors.margins: 40 + border.width: 3; border.color: "transparent" + color: handler.pressed ? "lightsteelblue" : "darkgrey" + + TapHandler { + id: handler + acceptedButtons: (leftAllowedCB.checked ? Qt.LeftButton : Qt.NoButton) | + (middleAllowedCB.checked ? Qt.MiddleButton : Qt.NoButton) | + (rightAllowedCB.checked ? Qt.RightButton : Qt.NoButton) + gesturePolicy: (policyDragThresholdCB.checked ? TapHandler.DragThreshold : + policyWithinBoundsCB.checked ? TapHandler.WithinBounds : + TapHandler.ReleaseWithinBounds) + + onCanceled: { + console.log("canceled @ " + point.position) + borderBlink.blinkColor = "red" + borderBlink.start() + } + onTapped: function(point, button) { + console.log("tapped button " + button + " @ " + point.scenePosition + + " on device '" + point.device.name + "' with modifiers " + handler.point.modifiers + + " " + (tapCount > 1 ? (tapCount + " times") : "for the first time")) + if (tapCount > 1) { + tapCountLabel.text = tapCount + flashAnimation.start() + } else { + borderBlink.tapFeedback(button) + } + } + onLongPressed: longPressFeedback.createObject(rect, + {"x": point.position.x, "y": point.position.y, + "text": "long press after\n" + handler.timeHeld.toFixed(3) + " sec", + "color": buttonToBlinkColor(point.pressedButtons)}) + } + + Text { + id: tapCountLabel + anchors.centerIn: parent + font.pixelSize: 72 + font.weight: Font.Black + SequentialAnimation { + id: flashAnimation + PropertyAction { target: tapCountLabel; property: "visible"; value: true } + PropertyAction { target: tapCountLabel; property: "opacity"; value: 1.0 } + PropertyAction { target: tapCountLabel; property: "scale"; value: 1.0 } + ParallelAnimation { + NumberAnimation { + target: tapCountLabel + property: "opacity" + to: 0 + duration: 500 + } + NumberAnimation { + target: tapCountLabel + property: "scale" + to: 1.5 + duration: 500 + } + } + } + } + + Rectangle { + id: expandingCircle + radius: handler.timeHeld * 100 + visible: radius > 0 && handler.pressed + border.width: 3 + border.color: buttonToBlinkColor(handler.point.pressedButtons) + color: "transparent" + width: radius * 2 + height: radius * 2 + x: handler.point.pressPosition.x - radius + y: handler.point.pressPosition.y - radius + opacity: 0.25 + } + + Component { + id: longPressFeedback + Text { } + } + + SequentialAnimation { + id: borderBlink + property color blinkColor: "red" + function tapFeedback(button) { + blinkColor = buttonToBlinkColor(button); + start(); + } + loops: 3 + ScriptAction { script: rect.border.color = borderBlink.blinkColor } + PauseAnimation { duration: 100 } + ScriptAction { script: rect.border.color = "transparent" } + PauseAnimation { duration: 100 } + } + + Text { + text: "tap, click with different buttons, double-click, long press in this area" + anchors { + bottom: parent.bottom + horizontalCenter: parent.horizontalCenter + margins: 6 + } + } + } + + function buttonToBlinkColor(button) { + switch (button) { + case Qt.MiddleButton: return "orange"; + case Qt.RightButton: return "magenta"; + default: return "green"; + } + } + + Row { + spacing: 6 + Text { + text: "accepted mouse clicks:" + anchors.verticalCenter: leftAllowedCB.verticalCenter + } + CheckBox { + id: leftAllowedCB + checked: true + text: "left" + } + CheckBox { + id: middleAllowedCB + text: "middle" + } + CheckBox { + id: rightAllowedCB + text: "right" + } + Text { + text: " gesture policy:" + anchors.verticalCenter: leftAllowedCB.verticalCenter + } + CheckBox { + id: policyDragThresholdCB + text: "drag threshold" + onCheckedChanged: if (checked) { + policyWithinBoundsCB.checked = false; + policyReleaseWithinBoundsCB.checked = false; + } + } + CheckBox { + id: policyWithinBoundsCB + text: "within bounds" + onCheckedChanged: if (checked) { + policyDragThresholdCB.checked = false; + policyReleaseWithinBoundsCB.checked = false; + } + } + CheckBox { + id: policyReleaseWithinBoundsCB + checked: true + text: "release within bounds" + onCheckedChanged: if (checked) { + policyDragThresholdCB.checked = false; + policyWithinBoundsCB.checked = false; + } + } + } +} |