問題描述

我有一個(gè)通過 QML 文件指定的小部件.這個(gè)小部件包含一個(gè)頂級(jí)Rectangle，它包含兩個(gè)Columns.這些 Columns 中的每一個(gè)都包含許多 Text 元素.這個(gè) QML 小部件包含在 C++ 中 QDeclarativeView 的子類中.

I have a widget specified through a QML file. This widget contains a top levelRectangle which contains two Columns. Each of these Columns contains many Text-elements. This QML widget is wrapped in a subclass of QDeclarativeView in C++.

我想為每個(gè) Text 元素指定字體.今天我通過指定頂級(jí)屬性來做到這一點(diǎn):

I want to specify the font for each of these Text-elements. Today I do this by specifying top-level properties:

property string fontfamily: "Arial"
property bool fontbold: false
property bool fontitalic: false
property int fontpixelsize: 11
property string fontcolor: "White"

并將每個(gè) Text 元素綁定到這些屬性:

and bind each Text-elements to these properties:

Text
{   
    color: fontcolor
    font.family: fontfamily
    font.bold: fontbold
    font.italic: fontitalic
    font.pixelSize: fontpixelsize
    ...
}

這不是很優(yōu)雅，每次我需要支持新的東西時(shí)都需要添加新的字段(例如帶下劃線的字體).我無法聲明 font 類型的屬性并綁定到它(小部件為空白，qmlviewer 警告屬性后的預(yù)期類型").

This isn't very elegant and new fields needs to be added every time I need support for something new (e.g. underlined fonts). I have not been able to declare a property of type font and bind to this instead (widget is blank and qmlviewer warns about "expected type after property").

是否有更好的方法為所有 Text 元素指定字體?

Is there a better way to specify a font for all Text-elements?

注意！我正在手寫 QML 文件.

Note! I'm handwriting the QML files.

推薦答案

另一種可能是編寫一個(gè)新的 QML 組件，它繼承自 Text 并默認(rèn)設(shè)置一些屬性:

Another possibility is to write a new QML component, that inherits from Text an sets some properties by default:

StyledText.qml

import QtQuick 1.0

Text {
    // set default values
    color: "blue"
    font.family: "Arial"
    font.bold: true
    font.italic: true
    font.pixelSize: 12
}

ma??in.qml

import QtQuick 1.0

Rectangle {
    Row {
        spacing: 10

        Column {
            StyledText {
                text: "Foo1"
            }
            StyledText {
                text: "Bar1"
            }
            StyledText {
                text: "Baz1"
            }
        }

        Column {
            StyledText {
                text: "Foo2"
            }
            StyledText {
                text: "Bar2"
            }
            StyledText {
                text: "Baz2"
            }
        }
    }
}

這篇關(guān)于在 Qt QML 中為許多文本元素指定字體的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！