In addition to the [universal attributes](ts-universal-attributes-size.md), the following attributes are supported.
| Name| Type| Description|
| -------- | -------- | -------- |
| textAlign | [TextAlign](ts-appendix-enums.md#textalign) | Text alignment mode of multiple lines of text.<br>Default value: **TextAlign.Start**|
| textOverflow | {overflow: [TextOverflow](ts-appendix-enums.md#textoverflow)} | Display mode when the text is too long.<br>Default value: **{overflow: TextOverflow.Clip}**<br>**NOTE**<br/>Text is truncated at the transition between words. To truncate text in the middle of a word, add **\u200B** between characters.<br>This attribute must be used with `maxLines` to take effect. |
| maxLines | number | Maximum number of lines in the text.<br>Default value: **Infinity**<br>**NOTE**<br/>By default, text is automatically folded. If this attribute is specified, the text will not exceed the specified number of lines. If there is extra text, you can use `textOverflow` to specify the truncation mode. |
| lineHeight | string \| number \|[Resource](ts-types.md#resource) | Text line height. If the value is less than or equal to **0**, the line height is not limited and the font size is adaptive. If the value of the number type, the unit fp is used.|
| decoration | {<br>type: TextDecorationType,<br>color?: [ResourceColor](ts-types.md#resourcecolor)<br>} | Style and color of the text decorative line.<br>Default value: {<br>type: TextDecorationType.None,<br>color: Color.Black<br>} |
| baselineOffset | number \| string | Offset of the text baseline. |
| letterSpacing | number \| string | Letter spacing. |
| minFontSize | number \| string \|[Resource](ts-types.md#resource) | Minimum font size. |
| maxFontSize | number \| string \|[Resource](ts-types.md#resource) | Maximum font size. |
| textCase | [TextCase](ts-appendix-enums.md#textcase) | Text case.<br>Default value: **TextCase.Normal**|
| textAlign | [TextAlign](ts-appendix-enums.md#textalign) | Horizontal alignment mode of the text.<br>Default value: **TextAlign.Start**|
| textOverflow | {overflow: [TextOverflow](ts-appendix-enums.md#textoverflow)} | Display mode when the text is too long.<br>Default value: **{overflow: TextOverflow.Clip}**<br>**NOTE**<br/>Text is clipped at the transition between words. To clip text in the middle of a word, add **\u200B** between characters.<br>This attribute must be used with `maxLines` to take effect.|
| maxLines | number | Maximum number of lines in the text.<br>Default value: **Infinity**<br>**NOTE**<br/>By default, text is automatically folded. If this attribute is specified, the text will not exceed the specified number of lines. If there is extra text, you can use **textOverflow** to specify how it is displayed.|
| lineHeight | string \| number \|[Resource](ts-types.md#resource) | Text line height. If the value is less than or equal to **0**, the line height is not limited and the font size is adaptive. If the value of the number type, the unit fp is used.|
| decoration | {<br>type: [TextDecorationType](ts-appendix-enums.md#textdecorationtype),<br>color?: [ResourceColor](ts-types.md#resourcecolor)<br>} | Style and color of the text decorative line.<br>Default value: **{<br>type: TextDecorationType.None,<br>color: Color.Black<br>}** |
| baselineOffset | number \| string | Baseline offset of the text. The default value is **0**. |
| letterSpacing | number \| string | Letter spacing. |
| minFontSize | number \| string \|[Resource](ts-types.md#resource) | Minimum font size. |
| maxFontSize | number \| string \|[Resource](ts-types.md#resource) | Maximum font size. |
| textCase | [TextCase](ts-appendix-enums.md#textcase) | Text case.<br>Default value: **TextCase.Normal**|
| copyOption<sup>9+</sup> | [CopyOptions](ts-appendix-enums.md#copyoptions9) | Whether copy and paste is allowed.<br>Default value: **CopyOptions.None**|
> **NOTE**
> **NOTE**<br/>
>
> The **\<Text>** component cannot contain both the text and the child component **\<Span>**. If both of them exist, only the content in **\<Span>** is displayed.
## Example
### Example 1
Examples of using **textAlign**, **textOverflow**, **maxLines**, and **lineHeight**
```ts
// xxx.ets
@Entry
...
...
@@ -54,77 +56,184 @@ In addition to the [universal attributes](ts-universal-attributes-size.md), the
// Clip the text when the value of maxLines is exceeded.
Text('This is the setting of textOverflow to Clip text content This is the setting of textOverflow to None text content. This is the setting of textOverflow to Clip text content This is the setting of textOverflow to None text content.')
.textOverflow({overflow:TextOverflow.None})
.fontSize(12).border({width:1}).padding(10)
Text('This is the setting of textOverflow to Clip text content This is the setting of textOverflow to Clip text content.')
| bindPopup | show: boolean,<br>popup: PopupOptions \| CustomPopupOptions<sup>8+</sup> | Settings of the popup bound to the component.<br>**show**: whether to display the popup on the creation page by default. The default value is **false**.<br>**popup**: parameters of the popup.|
| bindPopup | show: boolean,<br>popup: [PopupOptions](#popupoptions)\|[CustomPopupOptions](#custompopupoptions8)<sup>8+</sup> | Binds a popup to the component.<br>**show**: whether to show the popup. The default value is **false**, indicating that the popup is hidden.<br>**popup**: parameters of the popup.|
## PopupOptions
...
...
@@ -21,6 +21,7 @@ The popup attribute defines the popup displayed when a component is clicked.
| message | string | Yes | Content of the popup message. |
| placementOnTop | boolean | No | Whether to display the popup above the component. The default value is **false**. |
| arrowOffset<sup>9+</sup> | [Length](ts-types.md#length) | No | Offset of the popup arrow in the popup window. When residing above or below the popup, the arrow is offset to the left by default. When residing on the left or right side of the popup, the arrow is offset to the top by default. |
| showInSubWindow<sup>9+</sup> | boolean | No | Whether to show the popup in the subwindow. The default value is **false**.|
| primaryButton | {<br>value: string,<br>action: () => void<br>} | No | Primary button.<br>**value**: text of the primary button in the popup.<br>**action**: callback for clicking the primary button.|
| secondaryButton | {<br>value: string,<br>action: () => void<br>} | No | Secondary button.<br>**value**: text of the secondary button in the popup.<br>**action**: callback for clicking the secondary button.|
| onStateChange | (event: { isVisible: boolean }) => void | No | Callback for the popup status change event. The parameter **isVisible** indicates whether the popup is visible. |
...
...
@@ -29,9 +30,10 @@ The popup attribute defines the popup displayed when a component is clicked.
| placement | [Placement](ts-appendix-enums.md#placement8) | No | Preferred position of the popup. If the set position is insufficient for holding the popup, it will be automatically adjusted.<br>Default value: **Placement.Bottom** |
| arrowOffset<sup>9+</sup> | [Length](ts-types.md#length) | No | Offset of the popup arrow in the popup window. When residing above or below the popup, the arrow is offset to the left by default. When residing on the left or right side of the popup, the arrow is offset to the top by default. |
| showInSubWindow<sup>9+</sup> | boolean | No | Whether to show the popup in the subwindow. The default value is **false**.|
| maskColor | [ResourceColor](ts-types.md#resourcecolor) | No | Color of the popup mask. |
| popupColor | [ResourceColor](ts-types.md#resourcecolor) | No | Color of the popup. |
| enableArrow | boolean | No | Whether to display an arrow.<br>Since API version 9, if the location set for the popup arrow is not large enough, the arrow will not be displayed. For example, if **placement** is set to **Left** and the popup height is less than the arrow width (32 vp), the arrow will not be displayed.<br>Default value: **true**|
...
...
@@ -40,81 +42,80 @@ The popup attribute defines the popup displayed when a component is clicked.
| onClick(event: (event?: ClickEvent) => void) | No | Called when a click event occurs. For details about the event parameters, see **ClickEvent**.|
| onClick(event: (event?: ClickEvent) => void) | No | Called when a click event occurs. For details about **event**, see **ClickEvent**.|
## ClickEvent
| Name | Type | Description |
...
...
@@ -20,8 +20,9 @@ A click event is triggered when a component is clicked.
| screenY | number | Y coordinate of the click relative to the upper left corner of the application window. |
| x | number | X coordinate of the click relative to the upper left corner of the component being clicked. |
| y | number | Y coordinate of the click relative to the upper left corner of the component being clicked. |
| target<sup>8+</sup> | [EventTarget](#eventtarget8) | Target element that is clicked. |
| timestamp | number | Timestamp of the event. It is interval between the time when the event is triggered and the time when the system starts, in nanoseconds.|
| timestamp<sup>8+</sup> | number | Timestamp of the event. It is interval between the time when the event is triggered and the time when the system starts, in nanoseconds.|
| target<sup>8+</sup> | [EventTarget](#eventtarget8) | Display area of the object that triggers the event.|
The framework provides four pixel units, with vp as the reference data unit.
| Name | Description |
| -------- | -------- |
| px | Physical pixel unit of the screen. |
| vp | Pixels specific to the screen density, which are converted into physical pixels of the screen based on the screen pixel density. |
| fp | Font pixel, which is similar to vp and varies according to the system font size. |
| lpx | Logical pixel unit of the window. It is the ratio of the actual screen width to the logical width (configured by [designWidth](../quick-start/package-structure.md)). For example, if designWidth is set to 720, then 1lpx is equal to 2px for a screen with an actual width of 1440 physical pixels. |
| vp | Pixel unit specific to the screen density. Pixels in this unit are converted into physical pixels of the screen based on the screen pixel density. This unit is used for values whose unit is not specified. |
| fp | Font pixel, which is similar to vp and varies according to the system font size. |
| lpx | Logical pixel unit of the window. It is the ratio of the actual screen width to the logical width (configured by **[designWidth](../quick-start/package-structure.md)**). For example, if **designWidth** is set to **720** (default value), then 1lpx is equal to 2px for a screen with an actual width of 1440 physical pixels.|
## Pixel Unit Conversion
Conversion from other pixel units to px is supported.
Conversion between px and other pixel units is supported.
