Qt Quick Examples - Text▲
Sélectionnez
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import QtQuick 2.0
Rectangle {
id: editor
color: "lightGrey"
width: 640; height: 480
Rectangle {
color: "white"
anchors.fill: parent
anchors.margins: 20
BorderImage {
id: startHandle
source: "pics/startHandle.sci"
opacity: 0.0
width: 10
x: edit.positionToRectangle(edit.selectionStart).x - flick.contentX-width
y: edit.positionToRectangle(edit.selectionStart).y - flick.contentY
height: edit.positionToRectangle(edit.selectionStart).height
}
BorderImage {
id: endHandle
source: "pics/endHandle.sci"
opacity: 0.0
width: 10
x: edit.positionToRectangle(edit.selectionEnd).x - flick.contentX
y: edit.positionToRectangle(edit.selectionEnd).y - flick.contentY
height: edit.positionToRectangle(edit.selectionEnd).height
}
Flickable {
id: flick
anchors.fill: parent
contentWidth: edit.paintedWidth
contentHeight: edit.paintedHeight
interactive: true
clip: true
function ensureVisible(r) {
if (contentX >= r.x)
contentX = r.x;
else if (contentX+width <= r.x+r.width)
contentX = r.x+r.width-width;
if (contentY >= r.y)
contentY = r.y;
else if (contentY+height <= r.y+r.height)
contentY = r.y+r.height-height;
}
TextEdit {
id: edit
width: flick.width
height: flick.height
focus: true
wrapMode: TextEdit.Wrap
textFormat: TextEdit.RichText
onCursorRectangleChanged: flick.ensureVisible(cursorRectangle)
text: "<h1>Text Selection</h1>"
+"<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."
+"<p><b>Press-and-hold</b> to select a word, then drag the selection handles."
+"<p><b>Drag outside the selection</b> to scroll the text."
+"<p><b>Click inside the selection</b> to cut/copy/paste/cancel selection."
+"<p>It's too whacky to let you paste if there is no current selection."
}
}
Item {
id: menu
opacity: 0.0
width: 100
height: 120
anchors.centerIn: parent
Rectangle {
border.width: 1
border.color: "darkBlue"
radius: 15
color: "#806080FF"
anchors.fill: parent
}
Column {
anchors.centerIn: parent
spacing: 8
Rectangle {
border.width: 1
border.color: "darkBlue"
color: "#ff7090FF"
width: 60
height: 16
Text { anchors.centerIn: parent; text: "Cut" }
MouseArea {
anchors.fill: parent
onClicked: { edit.cut(); editor.state = "" }
}
}
Rectangle {
border.width: 1
border.color: "darkBlue"
color: "#ff7090FF"
width: 60
height: 16
Text { anchors.centerIn: parent; text: "Copy" }
MouseArea {
anchors.fill: parent
onClicked: { edit.copy(); editor.state = "selection" }
}
}
Rectangle {
border.width: 1
border.color: "darkBlue"
color: "#ff7090FF"
width: 60
height: 16
Text { anchors.centerIn: parent; text: "Paste" }
MouseArea {
anchors.fill: parent
onClicked: { edit.paste(); edit.cursorPosition = edit.selectionEnd; editor.state = "" }
}
}
Rectangle {
border.width: 1
border.color: "darkBlue"
color: "#ff7090FF"
width: 60
height: 16
Text { anchors.centerIn: parent; text: "Deselect" }
MouseArea {
anchors.fill: parent
onClicked: {
edit.cursorPosition = edit.selectionEnd;
edit.deselect();
editor.state = ""
}
}
}
}
}
}
states: [
State {
name: "selection"
PropertyChanges { target: startHandle; opacity: 1.0 }
PropertyChanges { target: endHandle; opacity: 1.0 }
},
State {
name: "menu"
PropertyChanges { target: startHandle; opacity: 0.5 }
PropertyChanges { target: endHandle; opacity: 0.5 }
PropertyChanges { target: menu; opacity: 1.0 }
}
]
}