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/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Controls module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.2 import QtQuick.Controls 1.2 import QtQuick.Controls.Private 1.0 Loader { id: handle property Item editor property int minimum: -1 property int maximum: -1 property int position: -1 property alias delegate: handle.sourceComponent readonly property alias pressed: mouse.pressed readonly property real handleX: x + (item ? item.x : 0) readonly property real handleY: y + (item ? item.y : 0) readonly property real handleWidth: item ? item.width : 0 readonly property real handleHeight: item ? item.height : 0 property Item control property QtObject styleData: QtObject { id: styleData signal activated() readonly property alias pressed: mouse.pressed readonly property alias position: handle.position readonly property bool hasSelection: editor.selectionStart !== editor.selectionEnd readonly property real lineHeight: position !== -1 ? editor.positionToRectangle(position).height : editor.cursorRectangle.height } function activate() { styleData.activated() } MouseArea { id: mouse anchors.fill: item enabled: item && item.visible preventStealing: true property real pressX property point offset property bool handleDragged: false onPressed: { Qt.inputMethod.commit() handleDragged = false pressX = mouse.x var handleRect = editor.positionToRectangle(handle.position) var centerX = handleRect.x + (handleRect.width / 2) var centerY = handleRect.y + (handleRect.height / 2) var center = mapFromItem(editor, centerX, centerY) offset = Qt.point(mouseX - center.x, mouseY - center.y) } onReleased: { if (!handleDragged) { // The user just clicked on the handle. In that // case clear the selection. var mousePos = editor.mapFromItem(item, mouse.x, mouse.y) var editorPos = editor.positionAt(mousePos.x, mousePos.y) editor.select(editorPos, editorPos) } } onPositionChanged: { handleDragged = true var pt = mapToItem(editor, mouse.x - offset.x, mouse.y - offset.y) // limit vertically within mix/max coordinates or content bounds var min = (minimum !== -1) ? minimum : 0 var max = (maximum !== -1) ? maximum : editor.length pt.y = Math.max(pt.y, editor.positionToRectangle(min).y) pt.y = Math.min(pt.y, editor.positionToRectangle(max).y) var pos = editor.positionAt(pt.x, pt.y) // limit horizontally within min/max character positions if (minimum !== -1) pos = Math.max(pos, minimum) pos = Math.max(pos, 0) if (maximum !== -1) pos = Math.min(pos, maximum) pos = Math.min(pos, editor.length) handle.position = pos } } }