Files
Comfyui-LayerForge/js/CanvasRenderer.js
Dariusz L 14c5f291a6 Refactor output area and mask handling for flexible canvas bounds
This update introduces a unified output area bounds system, allowing the output area to be extended in all directions independently of the custom shape. All mask and layer operations now reference outputAreaBounds, ensuring correct alignment and rendering. The mask tool, mask editor, and export logic have been refactored to use these bounds, and a new UI for output area extension with live preview and tooltips has been added. The code also improves logging and visualization of mask and output area boundaries.
2025-07-26 18:27:14 +02:00

403 lines
19 KiB
JavaScript

import { createModuleLogger } from "./utils/LoggerUtils.js";
const log = createModuleLogger('CanvasRenderer');
export class CanvasRenderer {
constructor(canvas) {
this.canvas = canvas;
this.renderAnimationFrame = null;
this.lastRenderTime = 0;
this.renderInterval = 1000 / 60;
this.isDirty = false;
}
render() {
if (this.renderAnimationFrame) {
this.isDirty = true;
return;
}
this.renderAnimationFrame = requestAnimationFrame(() => {
const now = performance.now();
if (now - this.lastRenderTime >= this.renderInterval) {
this.lastRenderTime = now;
this.actualRender();
this.isDirty = false;
}
if (this.isDirty) {
this.renderAnimationFrame = null;
this.render();
}
else {
this.renderAnimationFrame = null;
}
});
}
actualRender() {
if (this.canvas.offscreenCanvas.width !== this.canvas.canvas.clientWidth ||
this.canvas.offscreenCanvas.height !== this.canvas.canvas.clientHeight) {
const newWidth = Math.max(1, this.canvas.canvas.clientWidth);
const newHeight = Math.max(1, this.canvas.canvas.clientHeight);
this.canvas.offscreenCanvas.width = newWidth;
this.canvas.offscreenCanvas.height = newHeight;
}
const ctx = this.canvas.offscreenCtx;
ctx.fillStyle = '#606060';
ctx.fillRect(0, 0, this.canvas.offscreenCanvas.width, this.canvas.offscreenCanvas.height);
ctx.save();
ctx.scale(this.canvas.viewport.zoom, this.canvas.viewport.zoom);
ctx.translate(-this.canvas.viewport.x, -this.canvas.viewport.y);
this.drawGrid(ctx);
// Use CanvasLayers to draw layers with proper blend area support
this.canvas.canvasLayers.drawLayersToContext(ctx, this.canvas.layers);
// Draw selection frames for selected layers
const sortedLayers = [...this.canvas.layers].sort((a, b) => a.zIndex - b.zIndex);
sortedLayers.forEach(layer => {
if (!layer.image || !layer.visible)
return;
if (this.canvas.canvasSelection.selectedLayers.includes(layer)) {
ctx.save();
const centerX = layer.x + layer.width / 2;
const centerY = layer.y + layer.height / 2;
ctx.translate(centerX, centerY);
ctx.rotate(layer.rotation * Math.PI / 180);
const scaleH = layer.flipH ? -1 : 1;
const scaleV = layer.flipV ? -1 : 1;
if (layer.flipH || layer.flipV) {
ctx.scale(scaleH, scaleV);
}
this.drawSelectionFrame(ctx, layer);
ctx.restore();
}
});
this.drawCanvasOutline(ctx);
this.drawOutputAreaExtensionPreview(ctx); // Draw extension preview
this.drawPendingGenerationAreas(ctx); // Draw snapshot outlines
const maskImage = this.canvas.maskTool.getMask();
if (maskImage && this.canvas.maskTool.isOverlayVisible) {
ctx.save();
if (this.canvas.maskTool.isActive) {
ctx.globalCompositeOperation = 'source-over';
ctx.globalAlpha = 0.5;
}
else {
ctx.globalCompositeOperation = 'source-over';
ctx.globalAlpha = 1.0;
}
// Renderuj maskę w jej pozycji światowej (bez przesunięcia względem bounds)
const maskWorldX = this.canvas.maskTool.x;
const maskWorldY = this.canvas.maskTool.y;
ctx.drawImage(maskImage, maskWorldX, maskWorldY);
ctx.globalAlpha = 1.0;
ctx.restore();
}
this.renderInteractionElements(ctx);
this.canvas.shapeTool.render(ctx);
this.drawMaskAreaBounds(ctx); // Draw mask area bounds when mask tool is active
this.renderLayerInfo(ctx);
// Update custom shape menu position and visibility
if (this.canvas.outputAreaShape) {
this.canvas.customShapeMenu.show();
this.canvas.customShapeMenu.updateScreenPosition();
}
else {
this.canvas.customShapeMenu.hide();
}
ctx.restore();
if (this.canvas.canvas.width !== this.canvas.offscreenCanvas.width ||
this.canvas.canvas.height !== this.canvas.offscreenCanvas.height) {
this.canvas.canvas.width = this.canvas.offscreenCanvas.width;
this.canvas.canvas.height = this.canvas.offscreenCanvas.height;
}
this.canvas.ctx.drawImage(this.canvas.offscreenCanvas, 0, 0);
// Update Batch Preview UI positions
if (this.canvas.batchPreviewManagers && this.canvas.batchPreviewManagers.length > 0) {
this.canvas.batchPreviewManagers.forEach((manager) => {
manager.updateScreenPosition(this.canvas.viewport);
});
}
}
renderInteractionElements(ctx) {
const interaction = this.canvas.interaction;
if (interaction.mode === 'resizingCanvas' && interaction.canvasResizeRect) {
const rect = interaction.canvasResizeRect;
ctx.save();
ctx.strokeStyle = 'rgba(0, 255, 0, 0.8)';
ctx.lineWidth = 2 / this.canvas.viewport.zoom;
ctx.setLineDash([8 / this.canvas.viewport.zoom, 4 / this.canvas.viewport.zoom]);
ctx.strokeRect(rect.x, rect.y, rect.width, rect.height);
ctx.setLineDash([]);
ctx.restore();
if (rect.width > 0 && rect.height > 0) {
const text = `${Math.round(rect.width)}x${Math.round(rect.height)}`;
const textWorldX = rect.x + rect.width / 2;
const textWorldY = rect.y + rect.height + (20 / this.canvas.viewport.zoom);
ctx.save();
ctx.setTransform(1, 0, 0, 1, 0, 0);
const screenX = (textWorldX - this.canvas.viewport.x) * this.canvas.viewport.zoom;
const screenY = (textWorldY - this.canvas.viewport.y) * this.canvas.viewport.zoom;
ctx.font = "14px sans-serif";
ctx.textAlign = "center";
ctx.textBaseline = "middle";
const textMetrics = ctx.measureText(text);
const bgWidth = textMetrics.width + 10;
const bgHeight = 22;
ctx.fillStyle = "rgba(0, 128, 0, 0.7)";
ctx.fillRect(screenX - bgWidth / 2, screenY - bgHeight / 2, bgWidth, bgHeight);
ctx.fillStyle = "white";
ctx.fillText(text, screenX, screenY);
ctx.restore();
}
}
if (interaction.mode === 'movingCanvas' && interaction.canvasMoveRect) {
const rect = interaction.canvasMoveRect;
ctx.save();
ctx.strokeStyle = 'rgba(0, 150, 255, 0.8)';
ctx.lineWidth = 2 / this.canvas.viewport.zoom;
ctx.setLineDash([10 / this.canvas.viewport.zoom, 5 / this.canvas.viewport.zoom]);
ctx.strokeRect(rect.x, rect.y, rect.width, rect.height);
ctx.setLineDash([]);
ctx.restore();
const text = `(${Math.round(rect.x)}, ${Math.round(rect.y)})`;
const textWorldX = rect.x + rect.width / 2;
const textWorldY = rect.y - (20 / this.canvas.viewport.zoom);
ctx.save();
ctx.setTransform(1, 0, 0, 1, 0, 0);
const screenX = (textWorldX - this.canvas.viewport.x) * this.canvas.viewport.zoom;
const screenY = (textWorldY - this.canvas.viewport.y) * this.canvas.viewport.zoom;
ctx.font = "14px sans-serif";
ctx.textAlign = "center";
ctx.textBaseline = "middle";
const textMetrics = ctx.measureText(text);
const bgWidth = textMetrics.width + 10;
const bgHeight = 22;
ctx.fillStyle = "rgba(0, 100, 170, 0.7)";
ctx.fillRect(screenX - bgWidth / 2, screenY - bgHeight / 2, bgWidth, bgHeight);
ctx.fillStyle = "white";
ctx.fillText(text, screenX, screenY);
ctx.restore();
}
}
renderLayerInfo(ctx) {
if (this.canvas.canvasSelection.selectedLayer) {
this.canvas.canvasSelection.selectedLayers.forEach((layer) => {
if (!layer.image || !layer.visible)
return;
const layerIndex = this.canvas.layers.indexOf(layer);
const currentWidth = Math.round(layer.width);
const currentHeight = Math.round(layer.height);
const rotation = Math.round(layer.rotation % 360);
let text = `${currentWidth}x${currentHeight} | ${rotation}° | Layer #${layerIndex + 1}`;
if (layer.originalWidth && layer.originalHeight) {
text += `\nOriginal: ${layer.originalWidth}x${layer.originalHeight}`;
}
const centerX = layer.x + layer.width / 2;
const centerY = layer.y + layer.height / 2;
const rad = layer.rotation * Math.PI / 180;
const cos = Math.cos(rad);
const sin = Math.sin(rad);
const halfW = layer.width / 2;
const halfH = layer.height / 2;
const localCorners = [
{ x: -halfW, y: -halfH },
{ x: halfW, y: -halfH },
{ x: halfW, y: halfH },
{ x: -halfW, y: halfH }
];
const worldCorners = localCorners.map(p => ({
x: centerX + p.x * cos - p.y * sin,
y: centerY + p.x * sin + p.y * cos
}));
let minX = Infinity, maxX = -Infinity, maxY = -Infinity;
worldCorners.forEach(p => {
minX = Math.min(minX, p.x);
maxX = Math.max(maxX, p.x);
maxY = Math.max(maxY, p.y);
});
const padding = 20 / this.canvas.viewport.zoom;
const textWorldX = (minX + maxX) / 2;
const textWorldY = maxY + padding;
ctx.save();
ctx.setTransform(1, 0, 0, 1, 0, 0);
const screenX = (textWorldX - this.canvas.viewport.x) * this.canvas.viewport.zoom;
const screenY = (textWorldY - this.canvas.viewport.y) * this.canvas.viewport.zoom;
ctx.font = "14px sans-serif";
ctx.textAlign = "center";
ctx.textBaseline = "middle";
const lines = text.split('\n');
const textMetrics = lines.map(line => ctx.measureText(line));
const textBgWidth = Math.max(...textMetrics.map(m => m.width)) + 10;
const lineHeight = 18;
const textBgHeight = lines.length * lineHeight + 4;
ctx.fillStyle = "rgba(0, 0, 0, 0.7)";
ctx.fillRect(screenX - textBgWidth / 2, screenY - textBgHeight / 2, textBgWidth, textBgHeight);
ctx.fillStyle = "white";
lines.forEach((line, index) => {
const yPos = screenY - (textBgHeight / 2) + (lineHeight / 2) + (index * lineHeight) + 2;
ctx.fillText(line, screenX, yPos);
});
ctx.restore();
});
}
}
drawGrid(ctx) {
const gridSize = 64;
const lineWidth = 0.5 / this.canvas.viewport.zoom;
const viewLeft = this.canvas.viewport.x;
const viewTop = this.canvas.viewport.y;
const viewRight = this.canvas.viewport.x + this.canvas.offscreenCanvas.width / this.canvas.viewport.zoom;
const viewBottom = this.canvas.viewport.y + this.canvas.offscreenCanvas.height / this.canvas.viewport.zoom;
ctx.beginPath();
ctx.strokeStyle = '#707070';
ctx.lineWidth = lineWidth;
for (let x = Math.floor(viewLeft / gridSize) * gridSize; x < viewRight; x += gridSize) {
ctx.moveTo(x, viewTop);
ctx.lineTo(x, viewBottom);
}
for (let y = Math.floor(viewTop / gridSize) * gridSize; y < viewBottom; y += gridSize) {
ctx.moveTo(viewLeft, y);
ctx.lineTo(viewRight, y);
}
ctx.stroke();
}
drawCanvasOutline(ctx) {
ctx.beginPath();
ctx.strokeStyle = 'rgba(255, 255, 255, 0.8)';
ctx.lineWidth = 2 / this.canvas.viewport.zoom;
ctx.setLineDash([10 / this.canvas.viewport.zoom, 5 / this.canvas.viewport.zoom]);
// Rysuj outline w pozycji outputAreaBounds
const bounds = this.canvas.outputAreaBounds;
ctx.rect(bounds.x, bounds.y, bounds.width, bounds.height);
ctx.stroke();
ctx.setLineDash([]);
if (this.canvas.outputAreaShape) {
ctx.save();
ctx.strokeStyle = 'rgba(0, 255, 255, 0.9)';
ctx.lineWidth = 2 / this.canvas.viewport.zoom;
ctx.setLineDash([]);
const shape = this.canvas.outputAreaShape;
ctx.beginPath();
ctx.moveTo(shape.points[0].x, shape.points[0].y);
for (let i = 1; i < shape.points.length; i++) {
ctx.lineTo(shape.points[i].x, shape.points[i].y);
}
ctx.closePath();
ctx.stroke();
ctx.restore();
}
}
drawSelectionFrame(ctx, layer) {
const lineWidth = 2 / this.canvas.viewport.zoom;
const handleRadius = 5 / this.canvas.viewport.zoom;
ctx.strokeStyle = '#00ff00';
ctx.lineWidth = lineWidth;
ctx.beginPath();
ctx.rect(-layer.width / 2, -layer.height / 2, layer.width, layer.height);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(0, -layer.height / 2);
ctx.lineTo(0, -layer.height / 2 - 20 / this.canvas.viewport.zoom);
ctx.stroke();
const handles = this.canvas.canvasLayers.getHandles(layer);
ctx.fillStyle = '#ffffff';
ctx.strokeStyle = '#000000';
ctx.lineWidth = 1 / this.canvas.viewport.zoom;
for (const key in handles) {
const point = handles[key];
ctx.beginPath();
const localX = point.x - (layer.x + layer.width / 2);
const localY = point.y - (layer.y + layer.height / 2);
const rad = -layer.rotation * Math.PI / 180;
const rotatedX = localX * Math.cos(rad) - localY * Math.sin(rad);
const rotatedY = localX * Math.sin(rad) + localY * Math.cos(rad);
ctx.arc(rotatedX, rotatedY, handleRadius, 0, Math.PI * 2);
ctx.fill();
ctx.stroke();
}
}
drawOutputAreaExtensionPreview(ctx) {
if (!this.canvas.outputAreaExtensionPreview) {
return;
}
// Calculate preview bounds based on original canvas size + preview extensions
const baseWidth = this.canvas.originalCanvasSize ? this.canvas.originalCanvasSize.width : this.canvas.width;
const baseHeight = this.canvas.originalCanvasSize ? this.canvas.originalCanvasSize.height : this.canvas.height;
const ext = this.canvas.outputAreaExtensionPreview;
// Podgląd pokazuje jak będą wyglądać nowe outputAreaBounds
const previewBounds = {
x: -ext.left, // Może być ujemne - wycinamy fragment świata
y: -ext.top, // Może być ujemne - wycinamy fragment świata
width: baseWidth + ext.left + ext.right,
height: baseHeight + ext.top + ext.bottom
};
ctx.save();
ctx.strokeStyle = 'rgba(255, 255, 0, 0.8)'; // Yellow color for preview
ctx.lineWidth = 3 / this.canvas.viewport.zoom;
ctx.setLineDash([8 / this.canvas.viewport.zoom, 4 / this.canvas.viewport.zoom]);
ctx.strokeRect(previewBounds.x, previewBounds.y, previewBounds.width, previewBounds.height);
ctx.setLineDash([]);
ctx.restore();
}
drawPendingGenerationAreas(ctx) {
const areasToDraw = [];
// 1. Get areas from active managers
if (this.canvas.batchPreviewManagers && this.canvas.batchPreviewManagers.length > 0) {
this.canvas.batchPreviewManagers.forEach((manager) => {
if (manager.generationArea) {
areasToDraw.push(manager.generationArea);
}
});
}
// 2. Get the area from the pending context (if it exists)
if (this.canvas.pendingBatchContext && this.canvas.pendingBatchContext.outputArea) {
areasToDraw.push(this.canvas.pendingBatchContext.outputArea);
}
if (areasToDraw.length === 0) {
return;
}
// 3. Draw all collected areas
areasToDraw.forEach(area => {
ctx.save();
ctx.strokeStyle = 'rgba(0, 150, 255, 0.9)'; // Blue color
ctx.lineWidth = 3 / this.canvas.viewport.zoom;
ctx.setLineDash([12 / this.canvas.viewport.zoom, 6 / this.canvas.viewport.zoom]);
ctx.strokeRect(area.x, area.y, area.width, area.height);
ctx.restore();
});
}
drawMaskAreaBounds(ctx) {
// Only show mask area bounds when mask tool is active
if (!this.canvas.maskTool.isActive) {
return;
}
const maskTool = this.canvas.maskTool;
// Get mask canvas bounds in world coordinates
const maskBounds = {
x: maskTool.x,
y: maskTool.y,
width: maskTool.getMask().width,
height: maskTool.getMask().height
};
ctx.save();
ctx.strokeStyle = 'rgba(255, 100, 100, 0.7)'; // Red color for mask area bounds
ctx.lineWidth = 2 / this.canvas.viewport.zoom;
ctx.setLineDash([6 / this.canvas.viewport.zoom, 6 / this.canvas.viewport.zoom]);
ctx.strokeRect(maskBounds.x, maskBounds.y, maskBounds.width, maskBounds.height);
ctx.setLineDash([]);
// Add text label to show this is the mask drawing area
const textWorldX = maskBounds.x + maskBounds.width / 2;
const textWorldY = maskBounds.y - (10 / this.canvas.viewport.zoom);
ctx.setTransform(1, 0, 0, 1, 0, 0);
const screenX = (textWorldX - this.canvas.viewport.x) * this.canvas.viewport.zoom;
const screenY = (textWorldY - this.canvas.viewport.y) * this.canvas.viewport.zoom;
ctx.font = "12px sans-serif";
ctx.textAlign = "center";
ctx.textBaseline = "middle";
const text = "Mask Drawing Area";
const textMetrics = ctx.measureText(text);
const bgWidth = textMetrics.width + 8;
const bgHeight = 18;
ctx.fillStyle = "rgba(255, 100, 100, 0.8)";
ctx.fillRect(screenX - bgWidth / 2, screenY - bgHeight / 2, bgWidth, bgHeight);
ctx.fillStyle = "white";
ctx.fillText(text, screenX, screenY);
ctx.restore();
}
}