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StyleConfig,
ToolStyleConfig,
StyleSpecifier,
AnnotationStyle,
} from '../../../types/AnnotationStyle';
/**
* This class handles the configuration of the tool style. You can use it to set
* the style of a tool at various levels (annotation, viewport, toolGroup, global).
*
* The hierarchy of the configuration is as follows (each level falls back to the
* next level if not specified):
*
* 1) Annotation-level styles (with annotationUID)
* 2) Viewport-level tool styles
* - Per-tool: Length on the viewport with viewportId
* - Global: All tools on the viewport with viewportId
* 3) ToolGroup tool styles
* - Per-tool: Angle on toolGroupId in all viewports of the toolGroup
* - Global: All tools in the toolGroupId for all viewports
* 4) Default level:
* - Per-tool: Length styles
* - Global: Opinionated styles by CornerstoneJS
*/
class ToolStyle {
config: StyleConfig;
constructor() {
const defaultConfig = {
color: 'rgb(255, 255, 0)',
colorHighlighted: 'rgb(0, 255, 0)',
colorSelected: 'rgb(0, 220, 0)',
colorLocked: 'rgb(255, 255, 0)',
lineWidth: '1',
lineDash: '',
shadow: true,
textBoxFontFamily: 'Helvetica Neue, Helvetica, Arial, sans-serif',
textBoxFontSize: '14px',
textBoxColor: 'rgb(255, 255, 0)',
textBoxColorHighlighted: 'rgb(0, 255, 0)',
textBoxColorSelected: 'rgb(0, 255, 0)',
textBoxColorLocked: 'rgb(255, 255, 0)',
textBoxBackground: '',
textBoxLinkLineWidth: '1',
textBoxLinkLineDash: '2,3',
textBoxShadow: true,
};
this._initializeConfig(defaultConfig);
}
/**
* It returns the annotation-specific tool styles for the annotation with the given UID
* @param annotationUID - The unique identifier of the annotation.
* @returns The annotation tool styles for the annotation with the given UID.
*/
getAnnotationToolStyles(annotationUID: string): AnnotationStyle {
return this.config.annotations && this.config.annotations[annotationUID];
}
/**
* It returns the styles for a given viewport. It includes tool-specific and
* global styles (all tools in the viewport)
* @param viewportId - The id of the viewport
* @returns The viewport tool styles for the given viewport id.
*/
getViewportToolStyles(viewportId: string): ToolStyleConfig {
return this.config.viewports && this.config.viewports[viewportId];
}
/**
* It returns the tool style for the given toolGroup. It includes tool-specific and
* global styles (all tools in the toolGroup)
* @param toolGroupId - The id of the toolGroup.
* @returns The tool styles for the tool group with the given id.
*/
getToolGroupToolStyles(toolGroupId: string): ToolStyleConfig {
return this.config.toolGroups && this.config.toolGroups[toolGroupId];
}
/**
* It returns the default tool styles from the config file. It includes tool-specific and
* global styles (all tools in all tooLGroups)
* @returns The default tool styles.
*/
getDefaultToolStyles(): ToolStyleConfig {
return this.config.default;
}
/**
* It takes an annotationUID and a style object and sets the styles at
* the annotationLevel (highest priority in the hierarchy). The styles is an
* object with key value pairs.
* @param annotationUID - string - The unique identifier for the annotation.
* @param styles - ToolStyles
*/
setAnnotationStyles(annotationUID: string, styles: AnnotationStyle) {
let annotationSpecificStyles = this.config.annotations;
if (!annotationSpecificStyles) {
this.config = {
...this.config,
annotations: {},
};
annotationSpecificStyles = this.config.annotations;
}
annotationSpecificStyles[annotationUID] = styles;
}
/**
* It takes a viewportId and a ToolStyles object, and adds the ToolStyles object
* at the viewport level (second highest priority in the hierarchy after the annotation level).
* @param viewportId - The id of the viewport
* @param styles - style object including tool-specific and/or global styles (All tools in the viewport)
*/
setViewportToolStyles(viewportId: string, styles: ToolStyleConfig) {
let viewportSpecificStyles = this.config.viewports;
if (!viewportSpecificStyles) {
this.config = {
...this.config,
viewports: {},
};
viewportSpecificStyles = this.config.viewports;
}
viewportSpecificStyles[viewportId] = styles;
}
/**
* It takes a toolGroupId and a ToolStyles object, and it adds the ToolStyles object
* at the toolGroup level (third highest priority in the hierarchy after the viewport level).
* @param toolGroupId - The id of the toolGroup
* @param styles - style object including tool-specific (in all viewports of the toolGroup) and/or
* global styles (All tools in the toolGroup for all viewports)
*/
setToolGroupToolStyles(toolGroupId: string, styles: ToolStyleConfig) {
let toolGroupSpecificStyles = this.config.toolGroups;
if (!toolGroupSpecificStyles) {
this.config = {
...this.config,
toolGroups: {},
};
toolGroupSpecificStyles = this.config.toolGroups;
}
toolGroupSpecificStyles[toolGroupId] = styles;
}
/**
* Sets the default tool styles for the editor. It overrides the default styles for all tools.
* @param styles - style object including tool-specific (a tool in all toolGroups) and/or
* global styles (All tools in all tooLGroups)
*/
setDefaultToolStyles(styles: ToolStyleConfig) {
this.config.default = styles;
}
/**
* It returns the value for a given style key, based on the provided specifications.
* It starts by looking at the annotation-specific styles, then at the viewport-specific styles,
* then at the toolGroup-specific styles, and finally at the default styles.
* @param styleKey - The key of the style.
* @param styleSpecifier - An object containing the specifications such as viewportId,
* toolGroupId, toolName and annotationUID which are used to get the style if the level of specificity is
* met
* @returns The value for the given style key.
*/
getStyleProperty(toolStyle: string, specifications: StyleSpecifier) {
const { annotationUID, viewportId, toolGroupId, toolName } = specifications;
return this._getToolStyle(
toolStyle,
annotationUID,
viewportId,
toolGroupId,
toolName
);
}
private _getToolStyle(
property: string,
annotationUID: string,
viewportId: string,
toolGroupId: string,
toolName: string
) {
if (annotationUID) {
const styles = this.getAnnotationToolStyles(annotationUID);
Iif (styles) {
// check first in the toolSpecific styles
if (styles[property]) {
return styles[property];
}
}
}
if (viewportId) {
const styles = this.getViewportToolStyles(viewportId);
Iif (styles) {
// check if we have the viewportId specific style
// check first in the toolSpecific styles
if (styles[toolName] && styles[toolName][property]) {
return styles[toolName][property];
}
// check if we have the style in the viewport specific global viewportSpecificStyles
if (styles.global && styles.global[property]) {
return styles.global[property];
}
}
}
if (toolGroupId) {
const styles = this.getToolGroupToolStyles(toolGroupId);
Iif (styles) {
// check first in the toolSpecific styles
if (styles[toolName] && styles[toolName][property]) {
return styles[toolName][property];
}
// check if we have the style in the toolGroup specific global styles
if (styles.global && styles.global[property]) {
return styles.global[property];
}
}
}
const globalStyles = this.getDefaultToolStyles();
Iif (globalStyles[toolName] && globalStyles[toolName][property]) {
return globalStyles[toolName][property];
}
if (globalStyles.global && globalStyles.global[property]) {
return globalStyles.global[property];
}
}
private _initializeConfig(config) {
const toolStyles = {};
for (const name in config) {
toolStyles[name] = config[name];
}
this.config = {
default: {
global: toolStyles as AnnotationStyle,
},
};
}
}
const toolStyle = new ToolStyle();
export default toolStyle;
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