Move webgl-specific shared code into addon
Never got moved when canvas addon was removed
This commit is contained in:
Daniel Imms
@@ -1,236 +0,0 @@
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import { ISelectionRenderModel } from 'browser/renderer/shared/Types';
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import { ICoreBrowserService, IThemeService } from 'browser/services/Services';
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import { ReadonlyColorSet } from 'browser/Types';
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import { Attributes, BgFlags, ExtFlags, FgFlags, NULL_CELL_CODE, UnderlineStyle } from 'common/buffer/Constants';
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import { IDecorationService, IOptionsService } from 'common/services/Services';
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import { ICellData } from 'common/Types';
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import { Terminal } from '@xterm/xterm';
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import { rgba } from 'common/Color';
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import { treatGlyphAsBackgroundColor } from 'browser/renderer/shared/RendererUtils';
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// Work variables to avoid garbage collection
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let $fg = 0;
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let $bg = 0;
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let $hasFg = false;
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let $hasBg = false;
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let $isSelected = false;
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let $colors: ReadonlyColorSet | undefined;
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let $variantOffset = 0;
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export class CellColorResolver {
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/**
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* The shared result of the {@link resolve} call. This is only safe to use immediately after as
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* any other calls will share object.
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*/
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public readonly result: { fg: number, bg: number, ext: number } = {
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fg: 0,
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bg: 0,
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ext: 0
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};
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constructor(
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private readonly _terminal: Terminal,
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private readonly _optionService: IOptionsService,
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private readonly _selectionRenderModel: ISelectionRenderModel,
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private readonly _decorationService: IDecorationService,
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private readonly _coreBrowserService: ICoreBrowserService,
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private readonly _themeService: IThemeService
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) {
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}
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/**
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* Resolves colors for the cell, putting the result into the shared {@link result}. This resolves
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* overrides, inverse and selection for the cell which can then be used to feed into the renderer.
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*/
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public resolve(cell: ICellData, x: number, y: number, deviceCellWidth: number): void {
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this.result.bg = cell.bg;
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this.result.fg = cell.fg;
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this.result.ext = cell.bg & BgFlags.HAS_EXTENDED ? cell.extended.ext : 0;
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// Get any foreground/background overrides, this happens on the model to avoid spreading
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// override logic throughout the different sub-renderers
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// Reset overrides work variables
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$bg = 0;
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$fg = 0;
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$hasBg = false;
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$hasFg = false;
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$isSelected = false;
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$colors = this._themeService.colors;
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$variantOffset = 0;
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const code = cell.getCode();
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if (code !== NULL_CELL_CODE && cell.extended.underlineStyle === UnderlineStyle.DOTTED) {
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const lineWidth = Math.max(1, Math.floor(this._optionService.rawOptions.fontSize * this._coreBrowserService.dpr / 15));
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$variantOffset = x * deviceCellWidth % (Math.round(lineWidth) * 2);
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}
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// Apply decorations on the bottom layer
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this._decorationService.forEachDecorationAtCell(x, y, 'bottom', d => {
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if (d.backgroundColorRGB) {
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$bg = d.backgroundColorRGB.rgba >> 8 & Attributes.RGB_MASK;
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$hasBg = true;
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}
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if (d.foregroundColorRGB) {
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$fg = d.foregroundColorRGB.rgba >> 8 & Attributes.RGB_MASK;
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$hasFg = true;
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}
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});
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// Apply the selection color if needed
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$isSelected = this._selectionRenderModel.isCellSelected(this._terminal, x, y);
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if ($isSelected) {
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// If the cell has a bg color, retain the color by blending it with the selection color
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if (
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(this.result.fg & FgFlags.INVERSE) ||
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(this.result.bg & Attributes.CM_MASK) !== Attributes.CM_DEFAULT
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) {
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// Resolve the standard bg color
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if (this.result.fg & FgFlags.INVERSE) {
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switch (this.result.fg & Attributes.CM_MASK) {
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case Attributes.CM_P16:
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case Attributes.CM_P256:
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$bg = this._themeService.colors.ansi[this.result.fg & Attributes.PCOLOR_MASK].rgba;
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break;
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case Attributes.CM_RGB:
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$bg = ((this.result.fg & Attributes.RGB_MASK) << 8) | 0xFF;
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break;
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case Attributes.CM_DEFAULT:
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default:
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$bg = this._themeService.colors.foreground.rgba;
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}
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} else {
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switch (this.result.bg & Attributes.CM_MASK) {
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case Attributes.CM_P16:
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case Attributes.CM_P256:
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$bg = this._themeService.colors.ansi[this.result.bg & Attributes.PCOLOR_MASK].rgba;
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break;
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case Attributes.CM_RGB:
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$bg = ((this.result.bg & Attributes.RGB_MASK) << 8) | 0xFF;
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break;
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// No need to consider default bg color here as it's not possible
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}
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}
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// Blend with selection bg color
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$bg = rgba.blend(
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$bg,
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((this._coreBrowserService.isFocused ? $colors.selectionBackgroundOpaque : $colors.selectionInactiveBackgroundOpaque).rgba & 0xFFFFFF00) | 0x80
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) >> 8 & Attributes.RGB_MASK;
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} else {
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$bg = (this._coreBrowserService.isFocused ? $colors.selectionBackgroundOpaque : $colors.selectionInactiveBackgroundOpaque).rgba >> 8 & Attributes.RGB_MASK;
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}
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$hasBg = true;
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// Apply explicit selection foreground if present
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if ($colors.selectionForeground) {
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$fg = $colors.selectionForeground.rgba >> 8 & Attributes.RGB_MASK;
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$hasFg = true;
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}
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// Overwrite fg as bg if it's a special decorative glyph (eg. powerline)
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if (treatGlyphAsBackgroundColor(cell.getCode())) {
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// Inverse default background should be treated as transparent
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if (
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(this.result.fg & FgFlags.INVERSE) &&
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(this.result.bg & Attributes.CM_MASK) === Attributes.CM_DEFAULT
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) {
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$fg = (this._coreBrowserService.isFocused ? $colors.selectionBackgroundOpaque : $colors.selectionInactiveBackgroundOpaque).rgba >> 8 & Attributes.RGB_MASK;
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} else {
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if (this.result.fg & FgFlags.INVERSE) {
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switch (this.result.bg & Attributes.CM_MASK) {
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case Attributes.CM_P16:
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case Attributes.CM_P256:
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$fg = this._themeService.colors.ansi[this.result.bg & Attributes.PCOLOR_MASK].rgba;
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break;
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case Attributes.CM_RGB:
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$fg = ((this.result.bg & Attributes.RGB_MASK) << 8) | 0xFF;
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break;
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// No need to consider default bg color here as it's not possible
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}
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} else {
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switch (this.result.fg & Attributes.CM_MASK) {
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case Attributes.CM_P16:
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case Attributes.CM_P256:
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$fg = this._themeService.colors.ansi[this.result.fg & Attributes.PCOLOR_MASK].rgba;
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break;
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case Attributes.CM_RGB:
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$fg = ((this.result.fg & Attributes.RGB_MASK) << 8) | 0xFF;
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break;
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case Attributes.CM_DEFAULT:
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default:
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$fg = this._themeService.colors.foreground.rgba;
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}
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}
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$fg = rgba.blend(
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$fg,
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((this._coreBrowserService.isFocused ? $colors.selectionBackgroundOpaque : $colors.selectionInactiveBackgroundOpaque).rgba & 0xFFFFFF00) | 0x80
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) >> 8 & Attributes.RGB_MASK;
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}
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$hasFg = true;
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}
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}
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// Apply decorations on the top layer
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this._decorationService.forEachDecorationAtCell(x, y, 'top', d => {
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if (d.backgroundColorRGB) {
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$bg = d.backgroundColorRGB.rgba >> 8 & Attributes.RGB_MASK;
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$hasBg = true;
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}
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if (d.foregroundColorRGB) {
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$fg = d.foregroundColorRGB.rgba >> 8 & Attributes.RGB_MASK;
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$hasFg = true;
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}
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});
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// Convert any overrides from rgba to the fg/bg packed format. This resolves the inverse flag
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// ahead of time in order to use the correct cache key
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if ($hasBg) {
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if ($isSelected) {
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// Non-RGB attributes from model + force non-dim + override + force RGB color mode
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$bg = (cell.bg & ~Attributes.RGB_MASK & ~BgFlags.DIM) | $bg | Attributes.CM_RGB;
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} else {
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// Non-RGB attributes from model + override + force RGB color mode
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$bg = (cell.bg & ~Attributes.RGB_MASK) | $bg | Attributes.CM_RGB;
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}
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}
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if ($hasFg) {
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// Non-RGB attributes from model + force disable inverse + override + force RGB color mode
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$fg = (cell.fg & ~Attributes.RGB_MASK & ~FgFlags.INVERSE) | $fg | Attributes.CM_RGB;
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}
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// Handle case where inverse was specified by only one of bg override or fg override was set,
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// resolving the other inverse color and setting the inverse flag if needed.
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if (this.result.fg & FgFlags.INVERSE) {
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if ($hasBg && !$hasFg) {
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// Resolve bg color type (default color has a different meaning in fg vs bg)
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if ((this.result.bg & Attributes.CM_MASK) === Attributes.CM_DEFAULT) {
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$fg = (this.result.fg & ~(Attributes.RGB_MASK | FgFlags.INVERSE | Attributes.CM_MASK)) | (($colors.background.rgba >> 8 & Attributes.RGB_MASK) & Attributes.RGB_MASK) | Attributes.CM_RGB;
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} else {
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$fg = (this.result.fg & ~(Attributes.RGB_MASK | FgFlags.INVERSE | Attributes.CM_MASK)) | this.result.bg & (Attributes.RGB_MASK | Attributes.CM_MASK);
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}
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$hasFg = true;
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}
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if (!$hasBg && $hasFg) {
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// Resolve bg color type (default color has a different meaning in fg vs bg)
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if ((this.result.fg & Attributes.CM_MASK) === Attributes.CM_DEFAULT) {
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$bg = (this.result.bg & ~(Attributes.RGB_MASK | Attributes.CM_MASK)) | (($colors.foreground.rgba >> 8 & Attributes.RGB_MASK) & Attributes.RGB_MASK) | Attributes.CM_RGB;
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} else {
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$bg = (this.result.bg & ~(Attributes.RGB_MASK | Attributes.CM_MASK)) | this.result.fg & (Attributes.RGB_MASK | Attributes.CM_MASK);
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}
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$hasBg = true;
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}
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}
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// Release object
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$colors = undefined;
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// Use the override if it exists
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this.result.bg = $hasBg ? $bg : this.result.bg;
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this.result.fg = $hasFg ? $fg : this.result.fg;
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// Reset overrides variantOffset
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this.result.ext &= ~ExtFlags.VARIANT_OFFSET;
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this.result.ext |= ($variantOffset << 29) & ExtFlags.VARIANT_OFFSET;
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}
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}
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@@ -1,97 +0,0 @@
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/**
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* Copyright (c) 2017 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { TextureAtlas } from 'browser/renderer/shared/TextureAtlas';
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import { ITerminalOptions, Terminal } from '@xterm/xterm';
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import { ITerminal, ReadonlyColorSet } from 'browser/Types';
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import { ICharAtlasConfig, ITextureAtlas } from 'browser/renderer/shared/Types';
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import { generateConfig, configEquals } from 'browser/renderer/shared/CharAtlasUtils';
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interface ITextureAtlasCacheEntry {
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atlas: ITextureAtlas;
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config: ICharAtlasConfig;
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// N.B. This implementation potentially holds onto copies of the terminal forever, so
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// this may cause memory leaks.
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ownedBy: Terminal[];
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}
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const charAtlasCache: ITextureAtlasCacheEntry[] = [];
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/**
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* Acquires a char atlas, either generating a new one or returning an existing
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* one that is in use by another terminal.
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*/
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export function acquireTextureAtlas(
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terminal: Terminal,
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options: Required<ITerminalOptions>,
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colors: ReadonlyColorSet,
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deviceCellWidth: number,
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deviceCellHeight: number,
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deviceCharWidth: number,
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deviceCharHeight: number,
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devicePixelRatio: number,
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deviceMaxTextureSize: number
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): ITextureAtlas {
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const newConfig = generateConfig(deviceCellWidth, deviceCellHeight, deviceCharWidth, deviceCharHeight, options, colors, devicePixelRatio, deviceMaxTextureSize);
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// Check to see if the terminal already owns this config
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for (let i = 0; i < charAtlasCache.length; i++) {
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const entry = charAtlasCache[i];
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const ownedByIndex = entry.ownedBy.indexOf(terminal);
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if (ownedByIndex >= 0) {
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if (configEquals(entry.config, newConfig)) {
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return entry.atlas;
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}
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// The configs differ, release the terminal from the entry
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if (entry.ownedBy.length === 1) {
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entry.atlas.dispose();
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charAtlasCache.splice(i, 1);
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} else {
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entry.ownedBy.splice(ownedByIndex, 1);
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}
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break;
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}
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}
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// Try match a char atlas from the cache
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for (let i = 0; i < charAtlasCache.length; i++) {
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const entry = charAtlasCache[i];
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if (configEquals(entry.config, newConfig)) {
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// Add the terminal to the cache entry and return
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entry.ownedBy.push(terminal);
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return entry.atlas;
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}
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}
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const core: ITerminal = (terminal as any)._core;
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const newEntry: ITextureAtlasCacheEntry = {
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atlas: new TextureAtlas(document, newConfig, core.unicodeService),
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config: newConfig,
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ownedBy: [terminal]
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};
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charAtlasCache.push(newEntry);
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return newEntry.atlas;
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}
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/**
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* Removes a terminal reference from the cache, allowing its memory to be freed.
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* @param terminal The terminal to remove.
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*/
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export function removeTerminalFromCache(terminal: Terminal): void {
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for (let i = 0; i < charAtlasCache.length; i++) {
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const index = charAtlasCache[i].ownedBy.indexOf(terminal);
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if (index !== -1) {
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if (charAtlasCache[i].ownedBy.length === 1) {
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// Remove the cache entry if it's the only terminal
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charAtlasCache[i].atlas.dispose();
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charAtlasCache.splice(i, 1);
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} else {
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// Remove the reference from the cache entry
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charAtlasCache[i].ownedBy.splice(index, 1);
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}
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break;
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}
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}
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}
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@@ -1,80 +0,0 @@
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/**
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* Copyright (c) 2017 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { ICharAtlasConfig } from './Types';
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import { Attributes } from 'common/buffer/Constants';
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import { ITerminalOptions } from '@xterm/xterm';
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import { IColorSet, ReadonlyColorSet } from 'browser/Types';
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import { NULL_COLOR } from 'common/Color';
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export function generateConfig(deviceCellWidth: number, deviceCellHeight: number, deviceCharWidth: number, deviceCharHeight: number, options: Required<ITerminalOptions>, colors: ReadonlyColorSet, devicePixelRatio: number, deviceMaxTextureSize: number): ICharAtlasConfig {
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// null out some fields that don't matter
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const clonedColors: IColorSet = {
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foreground: colors.foreground,
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background: colors.background,
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cursor: NULL_COLOR,
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cursorAccent: NULL_COLOR,
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selectionForeground: NULL_COLOR,
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selectionBackgroundTransparent: NULL_COLOR,
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selectionBackgroundOpaque: NULL_COLOR,
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selectionInactiveBackgroundTransparent: NULL_COLOR,
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selectionInactiveBackgroundOpaque: NULL_COLOR,
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overviewRulerBorder: NULL_COLOR,
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scrollbarSliderBackground: NULL_COLOR,
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scrollbarSliderHoverBackground: NULL_COLOR,
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scrollbarSliderActiveBackground: NULL_COLOR,
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// For the static char atlas, we only use the first 16 colors, but we need all 256 for the
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// dynamic character atlas.
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ansi: colors.ansi.slice(),
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contrastCache: colors.contrastCache,
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halfContrastCache: colors.halfContrastCache
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};
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return {
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customGlyphs: options.customGlyphs,
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devicePixelRatio,
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deviceMaxTextureSize,
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letterSpacing: options.letterSpacing,
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lineHeight: options.lineHeight,
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deviceCellWidth: deviceCellWidth,
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deviceCellHeight: deviceCellHeight,
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deviceCharWidth: deviceCharWidth,
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deviceCharHeight: deviceCharHeight,
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fontFamily: options.fontFamily,
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fontSize: options.fontSize,
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fontWeight: options.fontWeight,
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fontWeightBold: options.fontWeightBold,
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allowTransparency: options.allowTransparency,
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drawBoldTextInBrightColors: options.drawBoldTextInBrightColors,
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minimumContrastRatio: options.minimumContrastRatio,
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colors: clonedColors
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};
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}
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export function configEquals(a: ICharAtlasConfig, b: ICharAtlasConfig): boolean {
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for (let i = 0; i < a.colors.ansi.length; i++) {
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if (a.colors.ansi[i].rgba !== b.colors.ansi[i].rgba) {
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return false;
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}
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}
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return a.devicePixelRatio === b.devicePixelRatio &&
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a.customGlyphs === b.customGlyphs &&
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a.lineHeight === b.lineHeight &&
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a.letterSpacing === b.letterSpacing &&
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a.fontFamily === b.fontFamily &&
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a.fontSize === b.fontSize &&
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a.fontWeight === b.fontWeight &&
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a.fontWeightBold === b.fontWeightBold &&
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a.allowTransparency === b.allowTransparency &&
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a.deviceCharWidth === b.deviceCharWidth &&
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a.deviceCharHeight === b.deviceCharHeight &&
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a.drawBoldTextInBrightColors === b.drawBoldTextInBrightColors &&
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a.minimumContrastRatio === b.minimumContrastRatio &&
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a.colors.foreground.rgba === b.colors.foreground.rgba &&
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a.colors.background.rgba === b.colors.background.rgba;
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}
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export function is256Color(colorCode: number): boolean {
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return (colorCode & Attributes.CM_MASK) === Attributes.CM_P16 || (colorCode & Attributes.CM_MASK) === Attributes.CM_P256;
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}
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@@ -3,12 +3,4 @@
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* @license MIT
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*/
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import { isFirefox, isLegacyEdge } from 'common/Platform';
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export const INVERTED_DEFAULT_COLOR = 257;
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export const DIM_OPACITY = 0.5;
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// The text baseline is set conditionally by browser. Using 'ideographic' for Firefox or Legacy Edge
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// would result in truncated text (Issue 3353). Using 'bottom' for Chrome would result in slightly
|
||||
// unaligned Powerline fonts (PR 3356#issuecomment-850928179).
|
||||
export const TEXT_BASELINE: CanvasTextBaseline = isFirefox || isLegacyEdge ? 'bottom' : 'ideographic';
|
||||
|
||||
@@ -1,146 +0,0 @@
|
||||
/**
|
||||
* Copyright (c) 2017 The xterm.js authors. All rights reserved.
|
||||
* @license MIT
|
||||
*/
|
||||
|
||||
import { ICoreBrowserService } from 'browser/services/Services';
|
||||
|
||||
/**
|
||||
* The time between cursor blinks.
|
||||
*/
|
||||
const BLINK_INTERVAL = 600;
|
||||
|
||||
export class CursorBlinkStateManager {
|
||||
public isCursorVisible: boolean;
|
||||
|
||||
private _animationFrame: number | undefined;
|
||||
private _blinkStartTimeout: number | undefined;
|
||||
private _blinkInterval: number | undefined;
|
||||
|
||||
/**
|
||||
* The time at which the animation frame was restarted, this is used on the
|
||||
* next render to restart the timers so they don't need to restart the timers
|
||||
* multiple times over a short period.
|
||||
*/
|
||||
private _animationTimeRestarted: number | undefined;
|
||||
|
||||
constructor(
|
||||
private _renderCallback: () => void,
|
||||
private _coreBrowserService: ICoreBrowserService
|
||||
) {
|
||||
this.isCursorVisible = true;
|
||||
if (this._coreBrowserService.isFocused) {
|
||||
this._restartInterval();
|
||||
}
|
||||
}
|
||||
|
||||
public get isPaused(): boolean { return !(this._blinkStartTimeout || this._blinkInterval); }
|
||||
|
||||
public dispose(): void {
|
||||
if (this._blinkInterval) {
|
||||
this._coreBrowserService.window.clearInterval(this._blinkInterval);
|
||||
this._blinkInterval = undefined;
|
||||
}
|
||||
if (this._blinkStartTimeout) {
|
||||
this._coreBrowserService.window.clearTimeout(this._blinkStartTimeout);
|
||||
this._blinkStartTimeout = undefined;
|
||||
}
|
||||
if (this._animationFrame) {
|
||||
this._coreBrowserService.window.cancelAnimationFrame(this._animationFrame);
|
||||
this._animationFrame = undefined;
|
||||
}
|
||||
}
|
||||
|
||||
public restartBlinkAnimation(): void {
|
||||
if (this.isPaused) {
|
||||
return;
|
||||
}
|
||||
// Save a timestamp so that the restart can be done on the next interval
|
||||
this._animationTimeRestarted = Date.now();
|
||||
// Force a cursor render to ensure it's visible and in the correct position
|
||||
this.isCursorVisible = true;
|
||||
if (!this._animationFrame) {
|
||||
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
|
||||
this._renderCallback();
|
||||
this._animationFrame = undefined;
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
private _restartInterval(timeToStart: number = BLINK_INTERVAL): void {
|
||||
// Clear any existing interval
|
||||
if (this._blinkInterval) {
|
||||
this._coreBrowserService.window.clearInterval(this._blinkInterval);
|
||||
this._blinkInterval = undefined;
|
||||
}
|
||||
|
||||
// Setup the initial timeout which will hide the cursor, this is done before
|
||||
// the regular interval is setup in order to support restarting the blink
|
||||
// animation in a lightweight way (without thrashing clearInterval and
|
||||
// setInterval).
|
||||
this._blinkStartTimeout = this._coreBrowserService.window.setTimeout(() => {
|
||||
// Check if another animation restart was requested while this was being
|
||||
// started
|
||||
if (this._animationTimeRestarted) {
|
||||
const time = BLINK_INTERVAL - (Date.now() - this._animationTimeRestarted);
|
||||
this._animationTimeRestarted = undefined;
|
||||
if (time > 0) {
|
||||
this._restartInterval(time);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// Hide the cursor
|
||||
this.isCursorVisible = false;
|
||||
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
|
||||
this._renderCallback();
|
||||
this._animationFrame = undefined;
|
||||
});
|
||||
|
||||
// Setup the blink interval
|
||||
this._blinkInterval = this._coreBrowserService.window.setInterval(() => {
|
||||
// Adjust the animation time if it was restarted
|
||||
if (this._animationTimeRestarted) {
|
||||
// calc time diff
|
||||
// Make restart interval do a setTimeout initially?
|
||||
const time = BLINK_INTERVAL - (Date.now() - this._animationTimeRestarted);
|
||||
this._animationTimeRestarted = undefined;
|
||||
this._restartInterval(time);
|
||||
return;
|
||||
}
|
||||
|
||||
// Invert visibility and render
|
||||
this.isCursorVisible = !this.isCursorVisible;
|
||||
this._animationFrame = this._coreBrowserService.window.requestAnimationFrame(() => {
|
||||
this._renderCallback();
|
||||
this._animationFrame = undefined;
|
||||
});
|
||||
}, BLINK_INTERVAL);
|
||||
}, timeToStart);
|
||||
}
|
||||
|
||||
public pause(): void {
|
||||
this.isCursorVisible = true;
|
||||
if (this._blinkInterval) {
|
||||
this._coreBrowserService.window.clearInterval(this._blinkInterval);
|
||||
this._blinkInterval = undefined;
|
||||
}
|
||||
if (this._blinkStartTimeout) {
|
||||
this._coreBrowserService.window.clearTimeout(this._blinkStartTimeout);
|
||||
this._blinkStartTimeout = undefined;
|
||||
}
|
||||
if (this._animationFrame) {
|
||||
this._coreBrowserService.window.cancelAnimationFrame(this._animationFrame);
|
||||
this._animationFrame = undefined;
|
||||
}
|
||||
}
|
||||
|
||||
public resume(): void {
|
||||
// Clear out any existing timers just in case
|
||||
this.pause();
|
||||
|
||||
this._animationTimeRestarted = undefined;
|
||||
this._restartInterval();
|
||||
this.restartBlinkAnimation();
|
||||
}
|
||||
}
|
||||
@@ -1,693 +0,0 @@
|
||||
/**
|
||||
* Copyright (c) 2021 The xterm.js authors. All rights reserved.
|
||||
* @license MIT
|
||||
*/
|
||||
|
||||
import { throwIfFalsy } from 'browser/renderer/shared/RendererUtils';
|
||||
|
||||
interface IBlockVector {
|
||||
x: number;
|
||||
y: number;
|
||||
w: number;
|
||||
h: number;
|
||||
}
|
||||
|
||||
export const blockElementDefinitions: { [index: string]: IBlockVector[] | undefined } = {
|
||||
// Block elements (0x2580-0x2590)
|
||||
'▀': [{ x: 0, y: 0, w: 8, h: 4 }], // UPPER HALF BLOCK
|
||||
'▁': [{ x: 0, y: 7, w: 8, h: 1 }], // LOWER ONE EIGHTH BLOCK
|
||||
'▂': [{ x: 0, y: 6, w: 8, h: 2 }], // LOWER ONE QUARTER BLOCK
|
||||
'▃': [{ x: 0, y: 5, w: 8, h: 3 }], // LOWER THREE EIGHTHS BLOCK
|
||||
'▄': [{ x: 0, y: 4, w: 8, h: 4 }], // LOWER HALF BLOCK
|
||||
'▅': [{ x: 0, y: 3, w: 8, h: 5 }], // LOWER FIVE EIGHTHS BLOCK
|
||||
'▆': [{ x: 0, y: 2, w: 8, h: 6 }], // LOWER THREE QUARTERS BLOCK
|
||||
'▇': [{ x: 0, y: 1, w: 8, h: 7 }], // LOWER SEVEN EIGHTHS BLOCK
|
||||
'█': [{ x: 0, y: 0, w: 8, h: 8 }], // FULL BLOCK
|
||||
'▉': [{ x: 0, y: 0, w: 7, h: 8 }], // LEFT SEVEN EIGHTHS BLOCK
|
||||
'▊': [{ x: 0, y: 0, w: 6, h: 8 }], // LEFT THREE QUARTERS BLOCK
|
||||
'▋': [{ x: 0, y: 0, w: 5, h: 8 }], // LEFT FIVE EIGHTHS BLOCK
|
||||
'▌': [{ x: 0, y: 0, w: 4, h: 8 }], // LEFT HALF BLOCK
|
||||
'▍': [{ x: 0, y: 0, w: 3, h: 8 }], // LEFT THREE EIGHTHS BLOCK
|
||||
'▎': [{ x: 0, y: 0, w: 2, h: 8 }], // LEFT ONE QUARTER BLOCK
|
||||
'▏': [{ x: 0, y: 0, w: 1, h: 8 }], // LEFT ONE EIGHTH BLOCK
|
||||
'▐': [{ x: 4, y: 0, w: 4, h: 8 }], // RIGHT HALF BLOCK
|
||||
|
||||
// Block elements (0x2594-0x2595)
|
||||
'▔': [{ x: 0, y: 0, w: 8, h: 1 }], // UPPER ONE EIGHTH BLOCK
|
||||
'▕': [{ x: 7, y: 0, w: 1, h: 8 }], // RIGHT ONE EIGHTH BLOCK
|
||||
|
||||
// Terminal graphic characters (0x2596-0x259F)
|
||||
'▖': [{ x: 0, y: 4, w: 4, h: 4 }], // QUADRANT LOWER LEFT
|
||||
'▗': [{ x: 4, y: 4, w: 4, h: 4 }], // QUADRANT LOWER RIGHT
|
||||
'▘': [{ x: 0, y: 0, w: 4, h: 4 }], // QUADRANT UPPER LEFT
|
||||
'▙': [{ x: 0, y: 0, w: 4, h: 8 }, { x: 0, y: 4, w: 8, h: 4 }], // QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT
|
||||
'▚': [{ x: 0, y: 0, w: 4, h: 4 }, { x: 4, y: 4, w: 4, h: 4 }], // QUADRANT UPPER LEFT AND LOWER RIGHT
|
||||
'▛': [{ x: 0, y: 0, w: 4, h: 8 }, { x: 4, y: 0, w: 4, h: 4 }], // QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER LEFT
|
||||
'▜': [{ x: 0, y: 0, w: 8, h: 4 }, { x: 4, y: 0, w: 4, h: 8 }], // QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER RIGHT
|
||||
'▝': [{ x: 4, y: 0, w: 4, h: 4 }], // QUADRANT UPPER RIGHT
|
||||
'▞': [{ x: 4, y: 0, w: 4, h: 4 }, { x: 0, y: 4, w: 4, h: 4 }], // QUADRANT UPPER RIGHT AND LOWER LEFT
|
||||
'▟': [{ x: 4, y: 0, w: 4, h: 8 }, { x: 0, y: 4, w: 8, h: 4 }], // QUADRANT UPPER RIGHT AND LOWER LEFT AND LOWER RIGHT
|
||||
|
||||
// VERTICAL ONE EIGHTH BLOCK-2 through VERTICAL ONE EIGHTH BLOCK-7
|
||||
'\u{1FB70}': [{ x: 1, y: 0, w: 1, h: 8 }],
|
||||
'\u{1FB71}': [{ x: 2, y: 0, w: 1, h: 8 }],
|
||||
'\u{1FB72}': [{ x: 3, y: 0, w: 1, h: 8 }],
|
||||
'\u{1FB73}': [{ x: 4, y: 0, w: 1, h: 8 }],
|
||||
'\u{1FB74}': [{ x: 5, y: 0, w: 1, h: 8 }],
|
||||
'\u{1FB75}': [{ x: 6, y: 0, w: 1, h: 8 }],
|
||||
|
||||
// HORIZONTAL ONE EIGHTH BLOCK-2 through HORIZONTAL ONE EIGHTH BLOCK-7
|
||||
'\u{1FB76}': [{ x: 0, y: 1, w: 8, h: 1 }],
|
||||
'\u{1FB77}': [{ x: 0, y: 2, w: 8, h: 1 }],
|
||||
'\u{1FB78}': [{ x: 0, y: 3, w: 8, h: 1 }],
|
||||
'\u{1FB79}': [{ x: 0, y: 4, w: 8, h: 1 }],
|
||||
'\u{1FB7A}': [{ x: 0, y: 5, w: 8, h: 1 }],
|
||||
'\u{1FB7B}': [{ x: 0, y: 6, w: 8, h: 1 }],
|
||||
|
||||
// LEFT AND LOWER ONE EIGHTH BLOCK
|
||||
'\u{1FB7C}': [{ x: 0, y: 0, w: 1, h: 8 }, { x: 0, y: 7, w: 8, h: 1 }],
|
||||
// LEFT AND UPPER ONE EIGHTH BLOCK
|
||||
'\u{1FB7D}': [{ x: 0, y: 0, w: 1, h: 8 }, { x: 0, y: 0, w: 8, h: 1 }],
|
||||
// RIGHT AND UPPER ONE EIGHTH BLOCK
|
||||
'\u{1FB7E}': [{ x: 7, y: 0, w: 1, h: 8 }, { x: 0, y: 0, w: 8, h: 1 }],
|
||||
// RIGHT AND LOWER ONE EIGHTH BLOCK
|
||||
'\u{1FB7F}': [{ x: 7, y: 0, w: 1, h: 8 }, { x: 0, y: 7, w: 8, h: 1 }],
|
||||
// UPPER AND LOWER ONE EIGHTH BLOCK
|
||||
'\u{1FB80}': [{ x: 0, y: 0, w: 8, h: 1 }, { x: 0, y: 7, w: 8, h: 1 }],
|
||||
// HORIZONTAL ONE EIGHTH BLOCK-1358
|
||||
'\u{1FB81}': [{ x: 0, y: 0, w: 8, h: 1 }, { x: 0, y: 2, w: 8, h: 1 }, { x: 0, y: 4, w: 8, h: 1 }, { x: 0, y: 7, w: 8, h: 1 }],
|
||||
|
||||
// UPPER ONE QUARTER BLOCK
|
||||
'\u{1FB82}': [{ x: 0, y: 0, w: 8, h: 2 }],
|
||||
// UPPER THREE EIGHTHS BLOCK
|
||||
'\u{1FB83}': [{ x: 0, y: 0, w: 8, h: 3 }],
|
||||
// UPPER FIVE EIGHTHS BLOCK
|
||||
'\u{1FB84}': [{ x: 0, y: 0, w: 8, h: 5 }],
|
||||
// UPPER THREE QUARTERS BLOCK
|
||||
'\u{1FB85}': [{ x: 0, y: 0, w: 8, h: 6 }],
|
||||
// UPPER SEVEN EIGHTHS BLOCK
|
||||
'\u{1FB86}': [{ x: 0, y: 0, w: 8, h: 7 }],
|
||||
|
||||
// RIGHT ONE QUARTER BLOCK
|
||||
'\u{1FB87}': [{ x: 6, y: 0, w: 2, h: 8 }],
|
||||
// RIGHT THREE EIGHTHS B0OCK
|
||||
'\u{1FB88}': [{ x: 5, y: 0, w: 3, h: 8 }],
|
||||
// RIGHT FIVE EIGHTHS BL0CK
|
||||
'\u{1FB89}': [{ x: 3, y: 0, w: 5, h: 8 }],
|
||||
// RIGHT THREE QUARTERS 0LOCK
|
||||
'\u{1FB8A}': [{ x: 2, y: 0, w: 6, h: 8 }],
|
||||
// RIGHT SEVEN EIGHTHS B0OCK
|
||||
'\u{1FB8B}': [{ x: 1, y: 0, w: 7, h: 8 }],
|
||||
|
||||
// CHECKER BOARD FILL
|
||||
'\u{1FB95}': [
|
||||
{ x: 0, y: 0, w: 2, h: 2 }, { x: 4, y: 0, w: 2, h: 2 },
|
||||
{ x: 2, y: 2, w: 2, h: 2 }, { x: 6, y: 2, w: 2, h: 2 },
|
||||
{ x: 0, y: 4, w: 2, h: 2 }, { x: 4, y: 4, w: 2, h: 2 },
|
||||
{ x: 2, y: 6, w: 2, h: 2 }, { x: 6, y: 6, w: 2, h: 2 }
|
||||
],
|
||||
// INVERSE CHECKER BOARD FILL
|
||||
'\u{1FB96}': [
|
||||
{ x: 2, y: 0, w: 2, h: 2 }, { x: 6, y: 0, w: 2, h: 2 },
|
||||
{ x: 0, y: 2, w: 2, h: 2 }, { x: 4, y: 2, w: 2, h: 2 },
|
||||
{ x: 2, y: 4, w: 2, h: 2 }, { x: 6, y: 4, w: 2, h: 2 },
|
||||
{ x: 0, y: 6, w: 2, h: 2 }, { x: 4, y: 6, w: 2, h: 2 }
|
||||
],
|
||||
// HEAVY HORIZONTAL FILL (upper middle and lower one quarter block)
|
||||
'\u{1FB97}': [{ x: 0, y: 2, w: 8, h: 2 }, { x: 0, y: 6, w: 8, h: 2 }]
|
||||
};
|
||||
|
||||
type PatternDefinition = number[][];
|
||||
|
||||
/**
|
||||
* Defines the repeating pattern used by special characters, the pattern is made up of a 2d array of
|
||||
* pixel values to be filled (1) or not filled (0).
|
||||
*/
|
||||
const patternCharacterDefinitions: { [key: string]: PatternDefinition | undefined } = {
|
||||
// Shade characters (0x2591-0x2593)
|
||||
'░': [ // LIGHT SHADE (25%)
|
||||
[1, 0, 0, 0],
|
||||
[0, 0, 0, 0],
|
||||
[0, 0, 1, 0],
|
||||
[0, 0, 0, 0]
|
||||
],
|
||||
'▒': [ // MEDIUM SHADE (50%)
|
||||
[1, 0],
|
||||
[0, 0],
|
||||
[0, 1],
|
||||
[0, 0]
|
||||
],
|
||||
'▓': [ // DARK SHADE (75%)
|
||||
[0, 1],
|
||||
[1, 1],
|
||||
[1, 0],
|
||||
[1, 1]
|
||||
]
|
||||
};
|
||||
|
||||
const enum Shapes {
|
||||
/** │ */ TOP_TO_BOTTOM = 'M.5,0 L.5,1',
|
||||
/** ─ */ LEFT_TO_RIGHT = 'M0,.5 L1,.5',
|
||||
|
||||
/** └ */ TOP_TO_RIGHT = 'M.5,0 L.5,.5 L1,.5',
|
||||
/** ┘ */ TOP_TO_LEFT = 'M.5,0 L.5,.5 L0,.5',
|
||||
/** ┐ */ LEFT_TO_BOTTOM = 'M0,.5 L.5,.5 L.5,1',
|
||||
/** ┌ */ RIGHT_TO_BOTTOM = 'M0.5,1 L.5,.5 L1,.5',
|
||||
|
||||
/** ╵ */ MIDDLE_TO_TOP = 'M.5,.5 L.5,0',
|
||||
/** ╴ */ MIDDLE_TO_LEFT = 'M.5,.5 L0,.5',
|
||||
/** ╶ */ MIDDLE_TO_RIGHT = 'M.5,.5 L1,.5',
|
||||
/** ╷ */ MIDDLE_TO_BOTTOM = 'M.5,.5 L.5,1',
|
||||
|
||||
/** ┴ */ T_TOP = 'M0,.5 L1,.5 M.5,.5 L.5,0',
|
||||
/** ┤ */ T_LEFT = 'M.5,0 L.5,1 M.5,.5 L0,.5',
|
||||
/** ├ */ T_RIGHT = 'M.5,0 L.5,1 M.5,.5 L1,.5',
|
||||
/** ┬ */ T_BOTTOM = 'M0,.5 L1,.5 M.5,.5 L.5,1',
|
||||
|
||||
/** ┼ */ CROSS = 'M0,.5 L1,.5 M.5,0 L.5,1',
|
||||
|
||||
/** ╌ */ TWO_DASHES_HORIZONTAL = 'M.1,.5 L.4,.5 M.6,.5 L.9,.5', // .2 empty, .3 filled
|
||||
/** ┄ */ THREE_DASHES_HORIZONTAL = 'M.0667,.5 L.2667,.5 M.4,.5 L.6,.5 M.7333,.5 L.9333,.5', // .1333 empty, .2 filled
|
||||
/** ┉ */ FOUR_DASHES_HORIZONTAL = 'M.05,.5 L.2,.5 M.3,.5 L.45,.5 M.55,.5 L.7,.5 M.8,.5 L.95,.5', // .1 empty, .15 filled
|
||||
/** ╎ */ TWO_DASHES_VERTICAL = 'M.5,.1 L.5,.4 M.5,.6 L.5,.9',
|
||||
/** ┆ */ THREE_DASHES_VERTICAL = 'M.5,.0667 L.5,.2667 M.5,.4 L.5,.6 M.5,.7333 L.5,.9333',
|
||||
/** ┊ */ FOUR_DASHES_VERTICAL = 'M.5,.05 L.5,.2 M.5,.3 L.5,.45 L.5,.55 M.5,.7 L.5,.95',
|
||||
}
|
||||
|
||||
const enum Style {
|
||||
NORMAL = 1,
|
||||
BOLD = 3
|
||||
}
|
||||
|
||||
/**
|
||||
* @param xp The percentage of 15% of the x axis.
|
||||
* @param yp The percentage of 15% of the x axis on the y axis.
|
||||
*/
|
||||
type DrawFunctionDefinition = (xp: number, yp: number) => string;
|
||||
|
||||
/**
|
||||
* This contains the definitions of all box drawing characters in the format of SVG paths (ie. the
|
||||
* svg d attribute).
|
||||
*/
|
||||
export const boxDrawingDefinitions: { [character: string]: { [fontWeight: number]: string | DrawFunctionDefinition } | undefined } = {
|
||||
// Uniform normal and bold
|
||||
'─': { [Style.NORMAL]: Shapes.LEFT_TO_RIGHT },
|
||||
'━': { [Style.BOLD]: Shapes.LEFT_TO_RIGHT },
|
||||
'│': { [Style.NORMAL]: Shapes.TOP_TO_BOTTOM },
|
||||
'┃': { [Style.BOLD]: Shapes.TOP_TO_BOTTOM },
|
||||
'┌': { [Style.NORMAL]: Shapes.RIGHT_TO_BOTTOM },
|
||||
'┏': { [Style.BOLD]: Shapes.RIGHT_TO_BOTTOM },
|
||||
'┐': { [Style.NORMAL]: Shapes.LEFT_TO_BOTTOM },
|
||||
'┓': { [Style.BOLD]: Shapes.LEFT_TO_BOTTOM },
|
||||
'└': { [Style.NORMAL]: Shapes.TOP_TO_RIGHT },
|
||||
'┗': { [Style.BOLD]: Shapes.TOP_TO_RIGHT },
|
||||
'┘': { [Style.NORMAL]: Shapes.TOP_TO_LEFT },
|
||||
'┛': { [Style.BOLD]: Shapes.TOP_TO_LEFT },
|
||||
'├': { [Style.NORMAL]: Shapes.T_RIGHT },
|
||||
'┣': { [Style.BOLD]: Shapes.T_RIGHT },
|
||||
'┤': { [Style.NORMAL]: Shapes.T_LEFT },
|
||||
'┫': { [Style.BOLD]: Shapes.T_LEFT },
|
||||
'┬': { [Style.NORMAL]: Shapes.T_BOTTOM },
|
||||
'┳': { [Style.BOLD]: Shapes.T_BOTTOM },
|
||||
'┴': { [Style.NORMAL]: Shapes.T_TOP },
|
||||
'┻': { [Style.BOLD]: Shapes.T_TOP },
|
||||
'┼': { [Style.NORMAL]: Shapes.CROSS },
|
||||
'╋': { [Style.BOLD]: Shapes.CROSS },
|
||||
'╴': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT },
|
||||
'╸': { [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'╵': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP },
|
||||
'╹': { [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'╶': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'╺': { [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'╷': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'╻': { [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
|
||||
// Double border
|
||||
'═': { [Style.NORMAL]: (xp, yp) => `M0,${.5 - yp} L1,${.5 - yp} M0,${.5 + yp} L1,${.5 + yp}` },
|
||||
'║': { [Style.NORMAL]: (xp, yp) => `M${.5 - xp},0 L${.5 - xp},1 M${.5 + xp},0 L${.5 + xp},1` },
|
||||
'╒': { [Style.NORMAL]: (xp, yp) => `M.5,1 L.5,${.5 - yp} L1,${.5 - yp} M.5,${.5 + yp} L1,${.5 + yp}` },
|
||||
'╓': { [Style.NORMAL]: (xp, yp) => `M${.5 - xp},1 L${.5 - xp},.5 L1,.5 M${.5 + xp},.5 L${.5 + xp},1` },
|
||||
'╔': { [Style.NORMAL]: (xp, yp) => `M1,${.5 - yp} L${.5 - xp},${.5 - yp} L${.5 - xp},1 M1,${.5 + yp} L${.5 + xp},${.5 + yp} L${.5 + xp},1` },
|
||||
'╕': { [Style.NORMAL]: (xp, yp) => `M0,${.5 - yp} L.5,${.5 - yp} L.5,1 M0,${.5 + yp} L.5,${.5 + yp}` },
|
||||
'╖': { [Style.NORMAL]: (xp, yp) => `M${.5 + xp},1 L${.5 + xp},.5 L0,.5 M${.5 - xp},.5 L${.5 - xp},1` },
|
||||
'╗': { [Style.NORMAL]: (xp, yp) => `M0,${.5 + yp} L${.5 - xp},${.5 + yp} L${.5 - xp},1 M0,${.5 - yp} L${.5 + xp},${.5 - yp} L${.5 + xp},1` },
|
||||
'╘': { [Style.NORMAL]: (xp, yp) => `M.5,0 L.5,${.5 + yp} L1,${.5 + yp} M.5,${.5 - yp} L1,${.5 - yp}` },
|
||||
'╙': { [Style.NORMAL]: (xp, yp) => `M1,.5 L${.5 - xp},.5 L${.5 - xp},0 M${.5 + xp},.5 L${.5 + xp},0` },
|
||||
'╚': { [Style.NORMAL]: (xp, yp) => `M1,${.5 - yp} L${.5 + xp},${.5 - yp} L${.5 + xp},0 M1,${.5 + yp} L${.5 - xp},${.5 + yp} L${.5 - xp},0` },
|
||||
'╛': { [Style.NORMAL]: (xp, yp) => `M0,${.5 + yp} L.5,${.5 + yp} L.5,0 M0,${.5 - yp} L.5,${.5 - yp}` },
|
||||
'╜': { [Style.NORMAL]: (xp, yp) => `M0,.5 L${.5 + xp},.5 L${.5 + xp},0 M${.5 - xp},.5 L${.5 - xp},0` },
|
||||
'╝': { [Style.NORMAL]: (xp, yp) => `M0,${.5 - yp} L${.5 - xp},${.5 - yp} L${.5 - xp},0 M0,${.5 + yp} L${.5 + xp},${.5 + yp} L${.5 + xp},0` },
|
||||
'╞': { [Style.NORMAL]: (xp, yp) => `${Shapes.TOP_TO_BOTTOM} M.5,${.5 - yp} L1,${.5 - yp} M.5,${.5 + yp} L1,${.5 + yp}` },
|
||||
'╟': { [Style.NORMAL]: (xp, yp) => `M${.5 - xp},0 L${.5 - xp},1 M${.5 + xp},0 L${.5 + xp},1 M${.5 + xp},.5 L1,.5` },
|
||||
'╠': { [Style.NORMAL]: (xp, yp) => `M${.5 - xp},0 L${.5 - xp},1 M1,${.5 + yp} L${.5 + xp},${.5 + yp} L${.5 + xp},1 M1,${.5 - yp} L${.5 + xp},${.5 - yp} L${.5 + xp},0` },
|
||||
'╡': { [Style.NORMAL]: (xp, yp) => `${Shapes.TOP_TO_BOTTOM} M0,${.5 - yp} L.5,${.5 - yp} M0,${.5 + yp} L.5,${.5 + yp}` },
|
||||
'╢': { [Style.NORMAL]: (xp, yp) => `M0,.5 L${.5 - xp},.5 M${.5 - xp},0 L${.5 - xp},1 M${.5 + xp},0 L${.5 + xp},1` },
|
||||
'╣': { [Style.NORMAL]: (xp, yp) => `M${.5 + xp},0 L${.5 + xp},1 M0,${.5 + yp} L${.5 - xp},${.5 + yp} L${.5 - xp},1 M0,${.5 - yp} L${.5 - xp},${.5 - yp} L${.5 - xp},0` },
|
||||
'╤': { [Style.NORMAL]: (xp, yp) => `M0,${.5 - yp} L1,${.5 - yp} M0,${.5 + yp} L1,${.5 + yp} M.5,${.5 + yp} L.5,1` },
|
||||
'╥': { [Style.NORMAL]: (xp, yp) => `${Shapes.LEFT_TO_RIGHT} M${.5 - xp},.5 L${.5 - xp},1 M${.5 + xp},.5 L${.5 + xp},1` },
|
||||
'╦': { [Style.NORMAL]: (xp, yp) => `M0,${.5 - yp} L1,${.5 - yp} M0,${.5 + yp} L${.5 - xp},${.5 + yp} L${.5 - xp},1 M1,${.5 + yp} L${.5 + xp},${.5 + yp} L${.5 + xp},1` },
|
||||
'╧': { [Style.NORMAL]: (xp, yp) => `M.5,0 L.5,${.5 - yp} M0,${.5 - yp} L1,${.5 - yp} M0,${.5 + yp} L1,${.5 + yp}` },
|
||||
'╨': { [Style.NORMAL]: (xp, yp) => `${Shapes.LEFT_TO_RIGHT} M${.5 - xp},.5 L${.5 - xp},0 M${.5 + xp},.5 L${.5 + xp},0` },
|
||||
'╩': { [Style.NORMAL]: (xp, yp) => `M0,${.5 + yp} L1,${.5 + yp} M0,${.5 - yp} L${.5 - xp},${.5 - yp} L${.5 - xp},0 M1,${.5 - yp} L${.5 + xp},${.5 - yp} L${.5 + xp},0` },
|
||||
'╪': { [Style.NORMAL]: (xp, yp) => `${Shapes.TOP_TO_BOTTOM} M0,${.5 - yp} L1,${.5 - yp} M0,${.5 + yp} L1,${.5 + yp}` },
|
||||
'╫': { [Style.NORMAL]: (xp, yp) => `${Shapes.LEFT_TO_RIGHT} M${.5 - xp},0 L${.5 - xp},1 M${.5 + xp},0 L${.5 + xp},1` },
|
||||
'╬': { [Style.NORMAL]: (xp, yp) => `M0,${.5 + yp} L${.5 - xp},${.5 + yp} L${.5 - xp},1 M1,${.5 + yp} L${.5 + xp},${.5 + yp} L${.5 + xp},1 M0,${.5 - yp} L${.5 - xp},${.5 - yp} L${.5 - xp},0 M1,${.5 - yp} L${.5 + xp},${.5 - yp} L${.5 + xp},0` },
|
||||
|
||||
// Diagonal
|
||||
'╱': { [Style.NORMAL]: 'M1,0 L0,1' },
|
||||
'╲': { [Style.NORMAL]: 'M0,0 L1,1' },
|
||||
'╳': { [Style.NORMAL]: 'M1,0 L0,1 M0,0 L1,1' },
|
||||
|
||||
// Mixed weight
|
||||
'╼': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'╽': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'╾': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'╿': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┍': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┎': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'┑': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┒': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'┕': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┖': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┙': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┚': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┝': { [Style.NORMAL]: Shapes.TOP_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┞': { [Style.NORMAL]: Shapes.RIGHT_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┟': { [Style.NORMAL]: Shapes.TOP_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'┠': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.TOP_TO_BOTTOM },
|
||||
'┡': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.TOP_TO_RIGHT },
|
||||
'┢': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.RIGHT_TO_BOTTOM },
|
||||
'┥': { [Style.NORMAL]: Shapes.TOP_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┦': { [Style.NORMAL]: Shapes.LEFT_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┧': { [Style.NORMAL]: Shapes.TOP_TO_LEFT, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'┨': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.TOP_TO_BOTTOM },
|
||||
'┩': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.TOP_TO_LEFT },
|
||||
'┪': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.LEFT_TO_BOTTOM },
|
||||
'┭': { [Style.NORMAL]: Shapes.RIGHT_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┮': { [Style.NORMAL]: Shapes.LEFT_TO_BOTTOM, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┯': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: Shapes.LEFT_TO_RIGHT },
|
||||
'┰': { [Style.NORMAL]: Shapes.LEFT_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'┱': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.LEFT_TO_BOTTOM },
|
||||
'┲': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.RIGHT_TO_BOTTOM },
|
||||
'┵': { [Style.NORMAL]: Shapes.TOP_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┶': { [Style.NORMAL]: Shapes.TOP_TO_LEFT, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┷': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: Shapes.LEFT_TO_RIGHT },
|
||||
'┸': { [Style.NORMAL]: Shapes.LEFT_TO_RIGHT, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'┹': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: Shapes.TOP_TO_LEFT },
|
||||
'┺': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: Shapes.TOP_TO_RIGHT },
|
||||
'┽': { [Style.NORMAL]: `${Shapes.TOP_TO_BOTTOM} ${Shapes.MIDDLE_TO_RIGHT}`, [Style.BOLD]: Shapes.MIDDLE_TO_LEFT },
|
||||
'┾': { [Style.NORMAL]: `${Shapes.TOP_TO_BOTTOM} ${Shapes.MIDDLE_TO_LEFT}`, [Style.BOLD]: Shapes.MIDDLE_TO_RIGHT },
|
||||
'┿': { [Style.NORMAL]: Shapes.TOP_TO_BOTTOM, [Style.BOLD]: Shapes.LEFT_TO_RIGHT },
|
||||
'╀': { [Style.NORMAL]: `${Shapes.LEFT_TO_RIGHT} ${Shapes.MIDDLE_TO_BOTTOM}`, [Style.BOLD]: Shapes.MIDDLE_TO_TOP },
|
||||
'╁': { [Style.NORMAL]: `${Shapes.MIDDLE_TO_TOP} ${Shapes.LEFT_TO_RIGHT}`, [Style.BOLD]: Shapes.MIDDLE_TO_BOTTOM },
|
||||
'╂': { [Style.NORMAL]: Shapes.LEFT_TO_RIGHT, [Style.BOLD]: Shapes.TOP_TO_BOTTOM },
|
||||
'╃': { [Style.NORMAL]: Shapes.RIGHT_TO_BOTTOM, [Style.BOLD]: Shapes.TOP_TO_LEFT },
|
||||
'╄': { [Style.NORMAL]: Shapes.LEFT_TO_BOTTOM, [Style.BOLD]: Shapes.TOP_TO_RIGHT },
|
||||
'╅': { [Style.NORMAL]: Shapes.TOP_TO_RIGHT, [Style.BOLD]: Shapes.LEFT_TO_BOTTOM },
|
||||
'╆': { [Style.NORMAL]: Shapes.TOP_TO_LEFT, [Style.BOLD]: Shapes.RIGHT_TO_BOTTOM },
|
||||
'╇': { [Style.NORMAL]: Shapes.MIDDLE_TO_BOTTOM, [Style.BOLD]: `${Shapes.MIDDLE_TO_TOP} ${Shapes.LEFT_TO_RIGHT}` },
|
||||
'╈': { [Style.NORMAL]: Shapes.MIDDLE_TO_TOP, [Style.BOLD]: `${Shapes.LEFT_TO_RIGHT} ${Shapes.MIDDLE_TO_BOTTOM}` },
|
||||
'╉': { [Style.NORMAL]: Shapes.MIDDLE_TO_RIGHT, [Style.BOLD]: `${Shapes.TOP_TO_BOTTOM} ${Shapes.MIDDLE_TO_LEFT}` },
|
||||
'╊': { [Style.NORMAL]: Shapes.MIDDLE_TO_LEFT, [Style.BOLD]: `${Shapes.TOP_TO_BOTTOM} ${Shapes.MIDDLE_TO_RIGHT}` },
|
||||
|
||||
// Dashed
|
||||
'╌': { [Style.NORMAL]: Shapes.TWO_DASHES_HORIZONTAL },
|
||||
'╍': { [Style.BOLD]: Shapes.TWO_DASHES_HORIZONTAL },
|
||||
'┄': { [Style.NORMAL]: Shapes.THREE_DASHES_HORIZONTAL },
|
||||
'┅': { [Style.BOLD]: Shapes.THREE_DASHES_HORIZONTAL },
|
||||
'┈': { [Style.NORMAL]: Shapes.FOUR_DASHES_HORIZONTAL },
|
||||
'┉': { [Style.BOLD]: Shapes.FOUR_DASHES_HORIZONTAL },
|
||||
'╎': { [Style.NORMAL]: Shapes.TWO_DASHES_VERTICAL },
|
||||
'╏': { [Style.BOLD]: Shapes.TWO_DASHES_VERTICAL },
|
||||
'┆': { [Style.NORMAL]: Shapes.THREE_DASHES_VERTICAL },
|
||||
'┇': { [Style.BOLD]: Shapes.THREE_DASHES_VERTICAL },
|
||||
'┊': { [Style.NORMAL]: Shapes.FOUR_DASHES_VERTICAL },
|
||||
'┋': { [Style.BOLD]: Shapes.FOUR_DASHES_VERTICAL },
|
||||
|
||||
// Curved
|
||||
'╭': { [Style.NORMAL]: (xp, yp) => `M.5,1 L.5,${.5 + (yp / .15 * .5)} C.5,${.5 + (yp / .15 * .5)},.5,.5,1,.5` },
|
||||
'╮': { [Style.NORMAL]: (xp, yp) => `M.5,1 L.5,${.5 + (yp / .15 * .5)} C.5,${.5 + (yp / .15 * .5)},.5,.5,0,.5` },
|
||||
'╯': { [Style.NORMAL]: (xp, yp) => `M.5,0 L.5,${.5 - (yp / .15 * .5)} C.5,${.5 - (yp / .15 * .5)},.5,.5,0,.5` },
|
||||
'╰': { [Style.NORMAL]: (xp, yp) => `M.5,0 L.5,${.5 - (yp / .15 * .5)} C.5,${.5 - (yp / .15 * .5)},.5,.5,1,.5` }
|
||||
};
|
||||
|
||||
interface IVectorShape {
|
||||
d: string;
|
||||
type: VectorType;
|
||||
leftPadding?: number;
|
||||
rightPadding?: number;
|
||||
}
|
||||
|
||||
const enum VectorType {
|
||||
FILL,
|
||||
STROKE
|
||||
}
|
||||
|
||||
/**
|
||||
* This contains the definitions of the primarily used box drawing characters as vector shapes. The
|
||||
* reason these characters are defined specially is to avoid common problems if a user's font has
|
||||
* not been patched with powerline characters and also to get pixel perfect rendering as rendering
|
||||
* issues can occur around AA/SPAA.
|
||||
*
|
||||
* The line variants draw beyond the cell and get clipped to ensure the end of the line is not
|
||||
* visible.
|
||||
*
|
||||
* Original symbols defined in https://github.com/powerline/fontpatcher
|
||||
*/
|
||||
export const powerlineDefinitions: { [index: string]: IVectorShape } = {
|
||||
// Git branch
|
||||
'\u{E0A0}': { d: 'M.3,1 L.03,1 L.03,.88 C.03,.82,.06,.78,.11,.73 C.15,.7,.2,.68,.28,.65 L.43,.6 C.49,.58,.53,.56,.56,.53 C.59,.5,.6,.47,.6,.43 L.6,.27 L.4,.27 L.69,.1 L.98,.27 L.78,.27 L.78,.46 C.78,.52,.76,.56,.72,.61 C.68,.66,.63,.67,.56,.7 L.48,.72 C.42,.74,.38,.76,.35,.78 C.32,.8,.31,.84,.31,.88 L.31,1 M.3,.5 L.03,.59 L.03,.09 L.3,.09 L.3,.655', type: VectorType.FILL },
|
||||
// L N
|
||||
'\u{E0A1}': { d: 'M.7,.4 L.7,.47 L.2,.47 L.2,.03 L.355,.03 L.355,.4 L.705,.4 M.7,.5 L.86,.5 L.86,.95 L.69,.95 L.44,.66 L.46,.86 L.46,.95 L.3,.95 L.3,.49 L.46,.49 L.71,.78 L.69,.565 L.69,.5', type: VectorType.FILL },
|
||||
// Lock
|
||||
'\u{E0A2}': { d: 'M.25,.94 C.16,.94,.11,.92,.11,.87 L.11,.53 C.11,.48,.15,.455,.23,.45 L.23,.3 C.23,.25,.26,.22,.31,.19 C.36,.16,.43,.15,.51,.15 C.59,.15,.66,.16,.71,.19 C.77,.22,.79,.26,.79,.3 L.79,.45 C.87,.45,.91,.48,.91,.53 L.91,.87 C.91,.92,.86,.94,.77,.94 L.24,.94 M.53,.2 C.49,.2,.45,.21,.42,.23 C.39,.25,.38,.27,.38,.3 L.38,.45 L.68,.45 L.68,.3 C.68,.27,.67,.25,.64,.23 C.61,.21,.58,.2,.53,.2 M.58,.82 L.58,.66 C.63,.65,.65,.63,.65,.6 C.65,.58,.64,.57,.61,.56 C.58,.55,.56,.54,.52,.54 C.48,.54,.46,.55,.43,.56 C.4,.57,.39,.59,.39,.6 C.39,.63,.41,.64,.46,.66 L.46,.82 L.57,.82', type: VectorType.FILL },
|
||||
// Right triangle solid
|
||||
'\u{E0B0}': { d: 'M0,0 L1,.5 L0,1', type: VectorType.FILL, rightPadding: 2 },
|
||||
// Right triangle line
|
||||
'\u{E0B1}': { d: 'M-1,-.5 L1,.5 L-1,1.5', type: VectorType.STROKE, leftPadding: 1, rightPadding: 1 },
|
||||
// Left triangle solid
|
||||
'\u{E0B2}': { d: 'M1,0 L0,.5 L1,1', type: VectorType.FILL, leftPadding: 2 },
|
||||
// Left triangle line
|
||||
'\u{E0B3}': { d: 'M2,-.5 L0,.5 L2,1.5', type: VectorType.STROKE, leftPadding: 1, rightPadding: 1 },
|
||||
// Right semi-circle solid
|
||||
'\u{E0B4}': { d: 'M0,0 L0,1 C0.552,1,1,0.776,1,.5 C1,0.224,0.552,0,0,0', type: VectorType.FILL, rightPadding: 1 },
|
||||
// Right semi-circle line
|
||||
'\u{E0B5}': { d: 'M.2,1 C.422,1,.8,.826,.78,.5 C.8,.174,0.422,0,.2,0', type: VectorType.STROKE, rightPadding: 1 },
|
||||
// Left semi-circle solid
|
||||
'\u{E0B6}': { d: 'M1,0 L1,1 C0.448,1,0,0.776,0,.5 C0,0.224,0.448,0,1,0', type: VectorType.FILL, leftPadding: 1 },
|
||||
// Left semi-circle line
|
||||
'\u{E0B7}': { d: 'M.8,1 C0.578,1,0.2,.826,.22,.5 C0.2,0.174,0.578,0,0.8,0', type: VectorType.STROKE, leftPadding: 1 },
|
||||
// Lower left triangle
|
||||
'\u{E0B8}': { d: 'M-.5,-.5 L1.5,1.5 L-.5,1.5', type: VectorType.FILL },
|
||||
// Backslash separator
|
||||
'\u{E0B9}': { d: 'M-.5,-.5 L1.5,1.5', type: VectorType.STROKE, leftPadding: 1, rightPadding: 1 },
|
||||
// Lower right triangle
|
||||
'\u{E0BA}': { d: 'M1.5,-.5 L-.5,1.5 L1.5,1.5', type: VectorType.FILL },
|
||||
// Upper left triangle
|
||||
'\u{E0BC}': { d: 'M1.5,-.5 L-.5,1.5 L-.5,-.5', type: VectorType.FILL },
|
||||
// Forward slash separator
|
||||
'\u{E0BD}': { d: 'M1.5,-.5 L-.5,1.5', type: VectorType.STROKE, leftPadding: 1, rightPadding: 1 },
|
||||
// Upper right triangle
|
||||
'\u{E0BE}': { d: 'M-.5,-.5 L1.5,1.5 L1.5,-.5', type: VectorType.FILL }
|
||||
};
|
||||
// Forward slash separator redundant
|
||||
powerlineDefinitions['\u{E0BB}'] = powerlineDefinitions['\u{E0BD}'];
|
||||
// Backslash separator redundant
|
||||
powerlineDefinitions['\u{E0BF}'] = powerlineDefinitions['\u{E0B9}'];
|
||||
|
||||
/**
|
||||
* Try drawing a custom block element or box drawing character, returning whether it was
|
||||
* successfully drawn.
|
||||
*/
|
||||
export function tryDrawCustomChar(
|
||||
ctx: CanvasRenderingContext2D,
|
||||
c: string,
|
||||
xOffset: number,
|
||||
yOffset: number,
|
||||
deviceCellWidth: number,
|
||||
deviceCellHeight: number,
|
||||
fontSize: number,
|
||||
devicePixelRatio: number
|
||||
): boolean {
|
||||
const blockElementDefinition = blockElementDefinitions[c];
|
||||
if (blockElementDefinition) {
|
||||
drawBlockElementChar(ctx, blockElementDefinition, xOffset, yOffset, deviceCellWidth, deviceCellHeight);
|
||||
return true;
|
||||
}
|
||||
|
||||
const patternDefinition = patternCharacterDefinitions[c];
|
||||
if (patternDefinition) {
|
||||
drawPatternChar(ctx, patternDefinition, xOffset, yOffset, deviceCellWidth, deviceCellHeight);
|
||||
return true;
|
||||
}
|
||||
|
||||
const boxDrawingDefinition = boxDrawingDefinitions[c];
|
||||
if (boxDrawingDefinition) {
|
||||
drawBoxDrawingChar(ctx, boxDrawingDefinition, xOffset, yOffset, deviceCellWidth, deviceCellHeight, devicePixelRatio);
|
||||
return true;
|
||||
}
|
||||
|
||||
const powerlineDefinition = powerlineDefinitions[c];
|
||||
if (powerlineDefinition) {
|
||||
drawPowerlineChar(ctx, powerlineDefinition, xOffset, yOffset, deviceCellWidth, deviceCellHeight, fontSize, devicePixelRatio);
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
function drawBlockElementChar(
|
||||
ctx: CanvasRenderingContext2D,
|
||||
charDefinition: IBlockVector[],
|
||||
xOffset: number,
|
||||
yOffset: number,
|
||||
deviceCellWidth: number,
|
||||
deviceCellHeight: number
|
||||
): void {
|
||||
for (let i = 0; i < charDefinition.length; i++) {
|
||||
const box = charDefinition[i];
|
||||
const xEighth = deviceCellWidth / 8;
|
||||
const yEighth = deviceCellHeight / 8;
|
||||
ctx.fillRect(
|
||||
xOffset + box.x * xEighth,
|
||||
yOffset + box.y * yEighth,
|
||||
box.w * xEighth,
|
||||
box.h * yEighth
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
const cachedPatterns: Map<PatternDefinition, Map</* fillStyle */string, CanvasPattern>> = new Map();
|
||||
|
||||
function drawPatternChar(
|
||||
ctx: CanvasRenderingContext2D,
|
||||
charDefinition: number[][],
|
||||
xOffset: number,
|
||||
yOffset: number,
|
||||
deviceCellWidth: number,
|
||||
deviceCellHeight: number
|
||||
): void {
|
||||
let patternSet = cachedPatterns.get(charDefinition);
|
||||
if (!patternSet) {
|
||||
patternSet = new Map();
|
||||
cachedPatterns.set(charDefinition, patternSet);
|
||||
}
|
||||
const fillStyle = ctx.fillStyle;
|
||||
if (typeof fillStyle !== 'string') {
|
||||
throw new Error(`Unexpected fillStyle type "${fillStyle}"`);
|
||||
}
|
||||
let pattern = patternSet.get(fillStyle);
|
||||
if (!pattern) {
|
||||
const width = charDefinition[0].length;
|
||||
const height = charDefinition.length;
|
||||
const tmpCanvas = ctx.canvas.ownerDocument.createElement('canvas');
|
||||
tmpCanvas.width = width;
|
||||
tmpCanvas.height = height;
|
||||
const tmpCtx = throwIfFalsy(tmpCanvas.getContext('2d'));
|
||||
const imageData = new ImageData(width, height);
|
||||
|
||||
// Extract rgba from fillStyle
|
||||
let r: number;
|
||||
let g: number;
|
||||
let b: number;
|
||||
let a: number;
|
||||
if (fillStyle.startsWith('#')) {
|
||||
r = parseInt(fillStyle.slice(1, 3), 16);
|
||||
g = parseInt(fillStyle.slice(3, 5), 16);
|
||||
b = parseInt(fillStyle.slice(5, 7), 16);
|
||||
a = fillStyle.length > 7 && parseInt(fillStyle.slice(7, 9), 16) || 1;
|
||||
} else if (fillStyle.startsWith('rgba')) {
|
||||
([r, g, b, a] = fillStyle.substring(5, fillStyle.length - 1).split(',').map(e => parseFloat(e)));
|
||||
} else {
|
||||
throw new Error(`Unexpected fillStyle color format "${fillStyle}" when drawing pattern glyph`);
|
||||
}
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
for (let x = 0; x < width; x++) {
|
||||
imageData.data[(y * width + x) * 4 ] = r;
|
||||
imageData.data[(y * width + x) * 4 + 1] = g;
|
||||
imageData.data[(y * width + x) * 4 + 2] = b;
|
||||
imageData.data[(y * width + x) * 4 + 3] = charDefinition[y][x] * (a * 255);
|
||||
}
|
||||
}
|
||||
tmpCtx.putImageData(imageData, 0, 0);
|
||||
pattern = throwIfFalsy(ctx.createPattern(tmpCanvas, null));
|
||||
patternSet.set(fillStyle, pattern);
|
||||
}
|
||||
ctx.fillStyle = pattern;
|
||||
ctx.fillRect(xOffset, yOffset, deviceCellWidth, deviceCellHeight);
|
||||
}
|
||||
|
||||
/**
|
||||
* Draws the following box drawing characters by mapping a subset of SVG d attribute instructions to
|
||||
* canvas draw calls.
|
||||
*
|
||||
* Box styles: ┎┰┒┍┯┑╓╥╖╒╤╕ ┏┳┓┌┲┓┌┬┐┏┱┐
|
||||
* ┌─┬─┐ ┏━┳━┓ ╔═╦═╗ ┠╂┨┝┿┥╟╫╢╞╪╡ ┡╇┩├╊┫┢╈┪┣╉┤
|
||||
* │ │ │ ┃ ┃ ┃ ║ ║ ║ ┖┸┚┕┷┙╙╨╜╘╧╛ └┴┘└┺┛┗┻┛┗┹┘
|
||||
* ├─┼─┤ ┣━╋━┫ ╠═╬═╣ ┏┱┐┌┲┓┌┬┐┌┬┐ ┏┳┓┌┮┓┌┬┐┏┭┐
|
||||
* │ │ │ ┃ ┃ ┃ ║ ║ ║ ┡╃┤├╄┩├╆┪┢╅┤ ┞╀┦├┾┫┟╁┧┣┽┤
|
||||
* └─┴─┘ ┗━┻━┛ ╚═╩═╝ └┴┘└┴┘└┺┛┗┹┘ └┴┘└┶┛┗┻┛┗┵┘
|
||||
*
|
||||
* Other:
|
||||
* ╭─╮ ╲ ╱ ╷╻╎╏┆┇┊┋ ╺╾╴ ╌╌╌ ┄┄┄ ┈┈┈
|
||||
* │ │ ╳ ╽╿╎╏┆┇┊┋ ╶╼╸ ╍╍╍ ┅┅┅ ┉┉┉
|
||||
* ╰─╯ ╱ ╲ ╹╵╎╏┆┇┊┋
|
||||
*
|
||||
* All box drawing characters:
|
||||
* ─ ━ │ ┃ ┄ ┅ ┆ ┇ ┈ ┉ ┊ ┋ ┌ ┍ ┎ ┏
|
||||
* ┐ ┑ ┒ ┓ └ ┕ ┖ ┗ ┘ ┙ ┚ ┛ ├ ┝ ┞ ┟
|
||||
* ┠ ┡ ┢ ┣ ┤ ┥ ┦ ┧ ┨ ┩ ┪ ┫ ┬ ┭ ┮ ┯
|
||||
* ┰ ┱ ┲ ┳ ┴ ┵ ┶ ┷ ┸ ┹ ┺ ┻ ┼ ┽ ┾ ┿
|
||||
* ╀ ╁ ╂ ╃ ╄ ╅ ╆ ╇ ╈ ╉ ╊ ╋ ╌ ╍ ╎ ╏
|
||||
* ═ ║ ╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟
|
||||
* ╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬ ╭ ╮ ╯
|
||||
* ╰ ╱ ╲ ╳ ╴ ╵ ╶ ╷ ╸ ╹ ╺ ╻ ╼ ╽ ╾ ╿
|
||||
*
|
||||
* ---
|
||||
*
|
||||
* Box drawing alignment tests: █
|
||||
* ▉
|
||||
* ╔══╦══╗ ┌──┬──┐ ╭──┬──╮ ╭──┬──╮ ┏━━┳━━┓ ┎┒┏┑ ╷ ╻ ┏┯┓ ┌┰┐ ▊ ╱╲╱╲╳╳╳
|
||||
* ║┌─╨─┐║ │╔═╧═╗│ │╒═╪═╕│ │╓─╁─╖│ ┃┌─╂─┐┃ ┗╃╄┙ ╶┼╴╺╋╸┠┼┨ ┝╋┥ ▋ ╲╱╲╱╳╳╳
|
||||
* ║│╲ ╱│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╿ │┃ ┍╅╆┓ ╵ ╹ ┗┷┛ └┸┘ ▌ ╱╲╱╲╳╳╳
|
||||
* ╠╡ ╳ ╞╣ ├╢ ╟┤ ├┼─┼─┼┤ ├╫─╂─╫┤ ┣┿╾┼╼┿┫ ┕┛┖┚ ┌┄┄┐ ╎ ┏┅┅┓ ┋ ▍ ╲╱╲╱╳╳╳
|
||||
* ║│╱ ╲│║ │║ ║│ ││ │ ││ │║ ┃ ║│ ┃│ ╽ │┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▎
|
||||
* ║└─╥─┘║ │╚═╤═╝│ │╘═╪═╛│ │╙─╀─╜│ ┃└─╂─┘┃ ░░▒▒▓▓██ ┊ ┆ ╎ ╏ ┇ ┋ ▏
|
||||
* ╚══╩══╝ └──┴──┘ ╰──┴──╯ ╰──┴──╯ ┗━━┻━━┛ └╌╌┘ ╎ ┗╍╍┛ ┋ ▁▂▃▄▅▆▇█
|
||||
*
|
||||
* Source: https://www.w3.org/2001/06/utf-8-test/UTF-8-demo.html
|
||||
*/
|
||||
function drawBoxDrawingChar(
|
||||
ctx: CanvasRenderingContext2D,
|
||||
charDefinition: { [fontWeight: number]: string | ((xp: number, yp: number) => string) },
|
||||
xOffset: number,
|
||||
yOffset: number,
|
||||
deviceCellWidth: number,
|
||||
deviceCellHeight: number,
|
||||
devicePixelRatio: number
|
||||
): void {
|
||||
ctx.strokeStyle = ctx.fillStyle;
|
||||
for (const [fontWeight, instructions] of Object.entries(charDefinition)) {
|
||||
ctx.beginPath();
|
||||
ctx.lineWidth = devicePixelRatio * Number.parseInt(fontWeight);
|
||||
let actualInstructions: string;
|
||||
if (typeof instructions === 'function') {
|
||||
const xp = .15;
|
||||
const yp = .15 / deviceCellHeight * deviceCellWidth;
|
||||
actualInstructions = instructions(xp, yp);
|
||||
} else {
|
||||
actualInstructions = instructions;
|
||||
}
|
||||
for (const instruction of actualInstructions.split(' ')) {
|
||||
const type = instruction[0];
|
||||
const f = svgToCanvasInstructionMap[type];
|
||||
if (!f) {
|
||||
console.error(`Could not find drawing instructions for "${type}"`);
|
||||
continue;
|
||||
}
|
||||
const args: string[] = instruction.substring(1).split(',');
|
||||
if (!args[0] || !args[1]) {
|
||||
continue;
|
||||
}
|
||||
f(ctx, translateArgs(args, deviceCellWidth, deviceCellHeight, xOffset, yOffset, true, devicePixelRatio));
|
||||
}
|
||||
ctx.stroke();
|
||||
ctx.closePath();
|
||||
}
|
||||
}
|
||||
|
||||
function drawPowerlineChar(
|
||||
ctx: CanvasRenderingContext2D,
|
||||
charDefinition: IVectorShape,
|
||||
xOffset: number,
|
||||
yOffset: number,
|
||||
deviceCellWidth: number,
|
||||
deviceCellHeight: number,
|
||||
fontSize: number,
|
||||
devicePixelRatio: number
|
||||
): void {
|
||||
// Clip the cell to make sure drawing doesn't occur beyond bounds
|
||||
const clipRegion = new Path2D();
|
||||
clipRegion.rect(xOffset, yOffset, deviceCellWidth, deviceCellHeight);
|
||||
ctx.clip(clipRegion);
|
||||
|
||||
ctx.beginPath();
|
||||
// Scale the stroke with DPR and font size
|
||||
const cssLineWidth = fontSize / 12;
|
||||
ctx.lineWidth = devicePixelRatio * cssLineWidth;
|
||||
for (const instruction of charDefinition.d.split(' ')) {
|
||||
const type = instruction[0];
|
||||
const f = svgToCanvasInstructionMap[type];
|
||||
if (!f) {
|
||||
console.error(`Could not find drawing instructions for "${type}"`);
|
||||
continue;
|
||||
}
|
||||
const args: string[] = instruction.substring(1).split(',');
|
||||
if (!args[0] || !args[1]) {
|
||||
continue;
|
||||
}
|
||||
f(ctx, translateArgs(
|
||||
args,
|
||||
deviceCellWidth,
|
||||
deviceCellHeight,
|
||||
xOffset,
|
||||
yOffset,
|
||||
false,
|
||||
devicePixelRatio,
|
||||
(charDefinition.leftPadding ?? 0) * (cssLineWidth / 2),
|
||||
(charDefinition.rightPadding ?? 0) * (cssLineWidth / 2)
|
||||
));
|
||||
}
|
||||
if (charDefinition.type === VectorType.STROKE) {
|
||||
ctx.strokeStyle = ctx.fillStyle;
|
||||
ctx.stroke();
|
||||
} else {
|
||||
ctx.fill();
|
||||
}
|
||||
ctx.closePath();
|
||||
}
|
||||
|
||||
function clamp(value: number, max: number, min: number = 0): number {
|
||||
return Math.max(Math.min(value, max), min);
|
||||
}
|
||||
|
||||
const svgToCanvasInstructionMap: { [index: string]: any } = {
|
||||
'C': (ctx: CanvasRenderingContext2D, args: number[]) => ctx.bezierCurveTo(args[0], args[1], args[2], args[3], args[4], args[5]),
|
||||
'L': (ctx: CanvasRenderingContext2D, args: number[]) => ctx.lineTo(args[0], args[1]),
|
||||
'M': (ctx: CanvasRenderingContext2D, args: number[]) => ctx.moveTo(args[0], args[1])
|
||||
};
|
||||
|
||||
function translateArgs(args: string[], cellWidth: number, cellHeight: number, xOffset: number, yOffset: number, doClamp: boolean, devicePixelRatio: number, leftPadding: number = 0, rightPadding: number = 0): number[] {
|
||||
const result = args.map(e => parseFloat(e) || parseInt(e));
|
||||
|
||||
if (result.length < 2) {
|
||||
throw new Error('Too few arguments for instruction');
|
||||
}
|
||||
|
||||
for (let x = 0; x < result.length; x += 2) {
|
||||
// Translate from 0-1 to 0-cellWidth
|
||||
result[x] *= cellWidth - (leftPadding * devicePixelRatio) - (rightPadding * devicePixelRatio);
|
||||
// Ensure coordinate doesn't escape cell bounds and round to the nearest 0.5 to ensure a crisp
|
||||
// line at 100% devicePixelRatio
|
||||
if (doClamp && result[x] !== 0) {
|
||||
result[x] = clamp(Math.round(result[x] + 0.5) - 0.5, cellWidth, 0);
|
||||
}
|
||||
// Apply the cell's offset (ie. x*cellWidth)
|
||||
result[x] += xOffset + (leftPadding * devicePixelRatio);
|
||||
}
|
||||
|
||||
for (let y = 1; y < result.length; y += 2) {
|
||||
// Translate from 0-1 to 0-cellHeight
|
||||
result[y] *= cellHeight;
|
||||
// Ensure coordinate doesn't escape cell bounds and round to the nearest 0.5 to ensure a crisp
|
||||
// line at 100% devicePixelRatio
|
||||
if (doClamp && result[y] !== 0) {
|
||||
result[y] = clamp(Math.round(result[y] + 0.5) - 0.5, cellHeight, 0);
|
||||
}
|
||||
// Apply the cell's offset (ie. x*cellHeight)
|
||||
result[y] += yOffset;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
@@ -1,40 +0,0 @@
|
||||
/**
|
||||
* Copyright (c) 2022 The xterm.js authors. All rights reserved.
|
||||
* @license MIT
|
||||
*/
|
||||
|
||||
import { toDisposable, IDisposable } from 'vs/base/common/lifecycle';
|
||||
|
||||
export function observeDevicePixelDimensions(element: HTMLElement, parentWindow: Window & typeof globalThis, callback: (deviceWidth: number, deviceHeight: number) => void): IDisposable {
|
||||
// Observe any resizes to the element and extract the actual pixel size of the element if the
|
||||
// devicePixelContentBoxSize API is supported. This allows correcting rounding errors when
|
||||
// converting between CSS pixels and device pixels which causes blurry rendering when device
|
||||
// pixel ratio is not a round number.
|
||||
let observer: ResizeObserver | undefined = new parentWindow.ResizeObserver((entries) => {
|
||||
const entry = entries.find((entry) => entry.target === element);
|
||||
if (!entry) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Disconnect if devicePixelContentBoxSize isn't supported by the browser
|
||||
if (!('devicePixelContentBoxSize' in entry)) {
|
||||
observer?.disconnect();
|
||||
observer = undefined;
|
||||
return;
|
||||
}
|
||||
|
||||
// Fire the callback, ignore events where the dimensions are 0x0 as the canvas is likely hidden
|
||||
const width = entry.devicePixelContentBoxSize[0].inlineSize;
|
||||
const height = entry.devicePixelContentBoxSize[0].blockSize;
|
||||
if (width > 0 && height > 0) {
|
||||
callback(width, height);
|
||||
}
|
||||
});
|
||||
try {
|
||||
observer.observe(element, { box: ['device-pixel-content-box'] } as any);
|
||||
} catch {
|
||||
observer.disconnect();
|
||||
observer = undefined;
|
||||
}
|
||||
return toDisposable(() => observer?.disconnect());
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user