222 lines
7.8 KiB
QML
222 lines
7.8 KiB
QML
/****************************************************************************
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**
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** Copyright (C) 2017 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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import QtQuick 2.0
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Rectangle {
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id: editor
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color: "lightGrey"
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width: 640; height: 480
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Rectangle {
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color: "white"
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anchors.fill: parent
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anchors.margins: 20
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BorderImage {
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id: startHandle
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source: "pics/startHandle.sci"
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opacity: 0.0
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width: 10
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x: edit.positionToRectangle(edit.selectionStart).x - flick.contentX-width
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y: edit.positionToRectangle(edit.selectionStart).y - flick.contentY
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height: edit.positionToRectangle(edit.selectionStart).height
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}
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BorderImage {
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id: endHandle
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source: "pics/endHandle.sci"
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opacity: 0.0
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width: 10
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x: edit.positionToRectangle(edit.selectionEnd).x - flick.contentX
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y: edit.positionToRectangle(edit.selectionEnd).y - flick.contentY
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height: edit.positionToRectangle(edit.selectionEnd).height
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}
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Flickable {
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id: flick
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anchors.fill: parent
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contentWidth: edit.paintedWidth
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contentHeight: edit.paintedHeight
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interactive: true
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clip: true
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function ensureVisible(r) {
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if (contentX >= r.x)
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contentX = r.x;
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else if (contentX+width <= r.x+r.width)
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contentX = r.x+r.width-width;
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if (contentY >= r.y)
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contentY = r.y;
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else if (contentY+height <= r.y+r.height)
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contentY = r.y+r.height-height;
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}
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TextEdit {
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id: edit
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width: flick.width
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height: flick.height
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focus: true
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wrapMode: TextEdit.Wrap
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textFormat: TextEdit.RichText
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onCursorRectangleChanged: flick.ensureVisible(cursorRectangle)
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text: "<h1>Text Selection</h1>"
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+"<p>This example is a whacky text selection mechanisms, showing how these can be implemented in the TextEdit element, to cater for whatever style is appropriate for the target platform."
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+"<p><b>Press-and-hold</b> to select a word, then drag the selection handles."
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+"<p><b>Drag outside the selection</b> to scroll the text."
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+"<p><b>Click inside the selection</b> to cut/copy/paste/cancel selection."
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+"<p>It's too whacky to let you paste if there is no current selection."
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}
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}
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Item {
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id: menu
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opacity: 0.0
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width: 100
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height: 120
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anchors.centerIn: parent
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Rectangle {
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border.width: 1
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border.color: "darkBlue"
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radius: 15
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color: "#806080FF"
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anchors.fill: parent
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}
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Column {
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anchors.centerIn: parent
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spacing: 8
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Rectangle {
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border.width: 1
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border.color: "darkBlue"
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color: "#ff7090FF"
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width: 60
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height: 16
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Text { anchors.centerIn: parent; text: "Cut" }
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MouseArea {
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anchors.fill: parent
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onClicked: { edit.cut(); editor.state = "" }
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}
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}
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Rectangle {
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border.width: 1
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border.color: "darkBlue"
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color: "#ff7090FF"
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width: 60
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height: 16
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Text { anchors.centerIn: parent; text: "Copy" }
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MouseArea {
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anchors.fill: parent
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onClicked: { edit.copy(); editor.state = "selection" }
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}
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}
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Rectangle {
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border.width: 1
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border.color: "darkBlue"
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color: "#ff7090FF"
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width: 60
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height: 16
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Text { anchors.centerIn: parent; text: "Paste" }
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MouseArea {
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anchors.fill: parent
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onClicked: { edit.paste(); edit.cursorPosition = edit.selectionEnd; editor.state = "" }
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}
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}
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Rectangle {
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border.width: 1
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border.color: "darkBlue"
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color: "#ff7090FF"
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width: 60
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height: 16
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Text { anchors.centerIn: parent; text: "Deselect" }
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MouseArea {
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anchors.fill: parent
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onClicked: {
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edit.cursorPosition = edit.selectionEnd;
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edit.deselect();
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editor.state = ""
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}
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}
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}
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}
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}
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}
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states: [
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State {
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name: "selection"
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PropertyChanges { target: startHandle; opacity: 1.0 }
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PropertyChanges { target: endHandle; opacity: 1.0 }
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},
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State {
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name: "menu"
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PropertyChanges { target: startHandle; opacity: 0.5 }
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PropertyChanges { target: endHandle; opacity: 0.5 }
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PropertyChanges { target: menu; opacity: 1.0 }
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}
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]
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}
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