TextMetrics QML Type

Provides metrics for a given font and text 更多...

Import Statement:	import QtQuick 2.7
开始支持版本:	Qt 5.4

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属性

advanceWidth : real
boundingRect : rect
elide : enumeration
elideWidth : real
elidedText : string
font : font
height : real
text : string
tightBoundingRect : rect
width : real

详细描述

TextMetrics calculates various properties of a given string of text for a particular font.

It provides a declarative API for the functions in QFontMetricsF which take arguments.


  TextMetrics {
      id: textMetrics
      font.family: "Arial"
      elide: Text.ElideMiddle
      elideWidth: 100
      text: "Hello World"
  }

  MyItem {
      text: textMetrics.elidedText
  }

参见 QFontMetricsF and FontMetrics.

属性

advanceWidth : real

This property holds the advance in pixels of the characters in text. This is the distance from the position of the string to where the next string should be drawn.

参见 QFontMetricsF::width().

boundingRect : rect

This property holds the bounding rectangle of the characters in the string specified by text.

参见 QFontMetricsF::boundingRect() and tightBoundingRect.

elide : enumeration

This property holds the elide mode of the text. This determines the position in which the string is elided. The possible values are:

Qt::ElideNone - No eliding; this is the default value.
Qt::ElideLeft - For example: "...World"
Qt::ElideMiddle - For example: "He...ld"
Qt::ElideRight - For example: "Hello..."

参见 elideWidth and QFontMetrics::elidedText.

elideWidth : real

This property holds the largest width the text can have (in pixels) before eliding will occur.

参见 elide and QFontMetrics::elidedText.

elidedText : string

This property holds an elided version of the string (i.e., a string with "..." in it) if the string text is wider than elideWidth. If the text is not wider than elideWidth, or elide is set to Qt::ElideNone, this property will be equal to the original string.

参见 QFontMetricsF::elidedText().

font : font

This property holds the font used for the metrics calculations.

height : real

This property holds the height of the bounding rectangle of the characters in the string specified by text. It is equivalent to: