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Merge pull request #19771 from Snuffleupagus/canvas-shorter-CanvasExtraState

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Change how (most) fields are initialized in the `CanvasExtraState` class
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Jonas Jenwald 2025-04-05 18:46:24 +02:00 • committed by GitHub
commit 9217d253aa
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1 changed files with 65 additions and 41 deletions
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106
src/display/canvas.js
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@ -124,47 +124,47 @@ function mirrorContextOperations(ctx, destCtx) {
delete ctx._removeMirroring;
};
ctx.save = function ctxSave() {
ctx.save = function () {
destCtx.save();
this.__originalSave();
};
ctx.restore = function ctxRestore() {
ctx.restore = function () {
destCtx.restore();
this.__originalRestore();
};
ctx.translate = function ctxTranslate(x, y) {
ctx.translate = function (x, y) {
destCtx.translate(x, y);
this.__originalTranslate(x, y);
};
ctx.scale = function ctxScale(x, y) {
ctx.scale = function (x, y) {
destCtx.scale(x, y);
this.__originalScale(x, y);
};
ctx.transform = function ctxTransform(a, b, c, d, e, f) {
ctx.transform = function (a, b, c, d, e, f) {
destCtx.transform(a, b, c, d, e, f);
this.__originalTransform(a, b, c, d, e, f);
};
ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
ctx.setTransform = function (a, b, c, d, e, f) {
destCtx.setTransform(a, b, c, d, e, f);
this.__originalSetTransform(a, b, c, d, e, f);
};
ctx.resetTransform = function ctxResetTransform() {
ctx.resetTransform = function () {
destCtx.resetTransform();
this.__originalResetTransform();
};
ctx.rotate = function ctxRotate(angle) {
ctx.rotate = function (angle) {
destCtx.rotate(angle);
this.__originalRotate(angle);
};
ctx.clip = function ctxRotate(rule) {
ctx.clip = function (rule) {
destCtx.clip(rule);
this.__originalClip(rule);
};
@ -304,39 +304,63 @@ function drawImageAtIntegerCoords(
}
class CanvasExtraState {
constructor(width, height) {
// Are soft masks and alpha values shapes or opacities?
this.alphaIsShape = false;
this.fontSize = 0;
this.fontSizeScale = 1;
this.textMatrix = IDENTITY_MATRIX;
this.textMatrixScale = 1;
this.fontMatrix = FONT_IDENTITY_MATRIX;
this.leading = 0;
// Current point (in user coordinates)
this.x = 0;
this.y = 0;
// Start of text line (in text coordinates)
this.lineX = 0;
this.lineY = 0;
// Character and word spacing
this.charSpacing = 0;
this.wordSpacing = 0;
this.textHScale = 1;
this.textRenderingMode = TextRenderingMode.FILL;
this.textRise = 0;
// Default fore and background colors
this.fillColor = "#000000";
this.strokeColor = "#000000";
this.patternFill = false;
this.patternStroke = false;
// Note: fill alpha applies to all non-stroking operations
this.fillAlpha = 1;
this.strokeAlpha = 1;
this.lineWidth = 1;
this.activeSMask = null;
this.transferMaps = "none";
// Are soft masks and alpha values shapes or opacities?
alphaIsShape = false;
fontSize = 0;
fontSizeScale = 1;
textMatrix = IDENTITY_MATRIX;
textMatrixScale = 1;
fontMatrix = FONT_IDENTITY_MATRIX;
leading = 0;
// Current point (in user coordinates)
x = 0;
y = 0;
// Start of text line (in text coordinates)
lineX = 0;
lineY = 0;
// Character and word spacing
charSpacing = 0;
wordSpacing = 0;
textHScale = 1;
textRenderingMode = TextRenderingMode.FILL;
textRise = 0;
// Default fore and background colors
fillColor = "#000000";
strokeColor = "#000000";
patternFill = false;
patternStroke = false;
// Note: fill alpha applies to all non-stroking operations
fillAlpha = 1;
strokeAlpha = 1;
lineWidth = 1;
activeSMask = null;
transferMaps = "none";
constructor(width, height) {
this.clipBox = new Float32Array([0, 0, width, height]);
this.minMax = MIN_MAX_INIT.slice();
}