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dark mode and themes support --------- Co-authored-by: YU <111847207+YU000jp@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| interface Theme { | ||
| // Background color and text color inherited from Logseq | ||
| mode: "dark" | "light"; | ||
| nodeColor: string; | ||
| edgeColor: string; | ||
| nodeLabelColor: string; | ||
| nodeLabelBackground: string; | ||
| nodeLabelShadowColor: string; | ||
| } | ||
|
|
||
| const lightTheme: Theme = { | ||
| mode: "light", | ||
| nodeColor: "#5c5c5c", | ||
| edgeColor: "#e5e5e5", | ||
| nodeLabelColor: "#000000", | ||
| nodeLabelBackground: "#ffffff", | ||
| nodeLabelShadowColor: "rgb(0, 0, 0)", | ||
| }; | ||
|
|
||
| const darkTheme: Theme = { | ||
| mode: "dark", | ||
| nodeColor: "#aaaaaa", | ||
| edgeColor: "#444444", | ||
| nodeLabelColor: "#ffffff", | ||
| nodeLabelBackground: "rgb(0, 0, 0, 0.7)", | ||
| nodeLabelShadowColor: "#ffffff", | ||
| }; | ||
|
|
||
| export const setThemeColors = () => { | ||
| const root = parent.document.querySelector(":root"); | ||
| if (root) { | ||
| const rootStyles = getComputedStyle(root); | ||
| document.body.style.setProperty("--theme-background", rootStyles.getPropertyValue("--ls-primary-background-color") || "#ffffff"); | ||
| document.body.style.setProperty("--theme-color", rootStyles.getPropertyValue("--ls-primary-text-color") || "#000000"); | ||
| document.body.style.setProperty("--theme-accent-color", rootStyles.getPropertyValue("--ls-primary-accent-color") || "#000000"); | ||
| document.body.style.setProperty("--theme-secondary-background", rootStyles.getPropertyValue("--ls-secondary-background-color") || "#000000"); | ||
| document.body.style.setProperty("--theme-border-color", rootStyles.getPropertyValue("--ls-border-color") || "#000000"); | ||
| } | ||
| }; | ||
| export function getTheme(mode: "light" | "dark"): Theme { | ||
| if (mode === "light") { | ||
| return lightTheme; | ||
| } else { | ||
| return darkTheme; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| import type { NodeDisplayData, PartialButFor } from "sigma/types"; | ||
| import drawLabel from "sigma/rendering/canvas/label"; | ||
| import type { ExtendedSettings } from "./sigma/sigma"; | ||
|
|
||
| /** | ||
| * Draw an hovered node. | ||
| * - if there is no label => display a shadow on the node | ||
| * - if the label box is bigger than node size => display a label box that contains the node with a shadow | ||
| * - else node with shadow and the label box | ||
| */ | ||
| export default function drawHover( | ||
| context: CanvasRenderingContext2D, | ||
| data: PartialButFor<NodeDisplayData, "x" | "y" | "size" | "label" | "color">, | ||
| settings: ExtendedSettings, | ||
| ): void { | ||
| const size = settings.labelSize, | ||
| font = settings.labelFont, | ||
| weight = settings.labelWeight; | ||
|
|
||
| context.font = `${weight} ${size}px ${font}`; | ||
|
|
||
| // Then we draw the label background | ||
| context.fillStyle = settings.labelBackgroundColor || "#FFF"; | ||
| context.shadowOffsetX = 0; | ||
| context.shadowOffsetY = 0; | ||
| context.shadowBlur = 8; | ||
| context.shadowColor = settings.labelShadowColor || "#000"; | ||
|
|
||
| const PADDING = 2; | ||
|
|
||
| if (typeof data.label === "string") { | ||
| const textWidth = context.measureText(data.label).width, | ||
| boxWidth = Math.round(textWidth + 5), | ||
| boxHeight = Math.round(size + 2 * PADDING), | ||
| radius = Math.max(data.size, size / 2) + PADDING; | ||
|
|
||
| const angleRadian = Math.asin(boxHeight / 2 / radius); | ||
| const xDeltaCoord = Math.sqrt(Math.abs(Math.pow(radius, 2) - Math.pow(boxHeight / 2, 2))); | ||
|
|
||
| context.beginPath(); | ||
| context.moveTo(data.x + xDeltaCoord, data.y + boxHeight / 2); | ||
| context.lineTo(data.x + radius + boxWidth, data.y + boxHeight / 2); | ||
| context.lineTo(data.x + radius + boxWidth, data.y - boxHeight / 2); | ||
| context.lineTo(data.x + xDeltaCoord, data.y - boxHeight / 2); | ||
| context.arc(data.x, data.y, radius, angleRadian, -angleRadian); | ||
| context.closePath(); | ||
| context.fill(); | ||
| } else { | ||
| context.beginPath(); | ||
| context.arc(data.x, data.y, data.size + PADDING, 0, Math.PI * 2); | ||
| context.closePath(); | ||
| context.fill(); | ||
| } | ||
|
|
||
| context.shadowOffsetX = 0; | ||
| context.shadowOffsetY = 0; | ||
| context.shadowBlur = 0; | ||
|
|
||
| // And finally we draw the label | ||
| drawLabel(context, data, settings); | ||
| } | ||
|
|
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