mirror of
https://github.com/Azornes/Comfyui-LayerForge.git
synced 2026-03-21 20:52:12 -03:00
df2680f2c9
Extracted and centralized common utility functions such as createCanvas, normalizeToUint8, and generateUniqueFileName in CommonUtils.js to reduce code duplication. Added createImageFromSource to ImageUtils.js. Refactored db.js to use a helper for IndexedDB requests, simplifying error handling and reducing boilerplate. Updated CanvasIO.js, CanvasLayers.js, and Canvas_view.js to use the new utilities.
755 lines
26 KiB
JavaScript
755 lines
26 KiB
JavaScript
import {saveImage, getImage, removeImage} from "./db.js";
|
|
import {createModuleLogger} from "./LoggerUtils.js";
|
|
import {generateUUID, snapToGrid, getSnapAdjustment, worldToLocal, localToWorld, createCanvas, generateUniqueFileName} from "./CommonUtils.js";
|
|
import {withErrorHandling, createValidationError, safeExecute} from "./ErrorHandler.js";
|
|
import {createImageFromSource} from "./ImageUtils.js";
|
|
|
|
// Inicjalizacja loggera dla modułu CanvasLayers
|
|
const log = createModuleLogger('CanvasLayers');
|
|
|
|
export class CanvasLayers {
|
|
constructor(canvas) {
|
|
this.canvas = canvas;
|
|
this.blendModes = [
|
|
{name: 'normal', label: 'Normal'},
|
|
{name: 'multiply', label: 'Multiply'},
|
|
{name: 'screen', label: 'Screen'},
|
|
{name: 'overlay', label: 'Overlay'},
|
|
{name: 'darken', label: 'Darken'},
|
|
{name: 'lighten', label: 'Lighten'},
|
|
{name: 'color-dodge', label: 'Color Dodge'},
|
|
{name: 'color-burn', label: 'Color Burn'},
|
|
{name: 'hard-light', label: 'Hard Light'},
|
|
{name: 'soft-light', label: 'Soft Light'},
|
|
{name: 'difference', label: 'Difference'},
|
|
{name: 'exclusion', label: 'Exclusion'}
|
|
];
|
|
this.selectedBlendMode = null;
|
|
this.blendOpacity = 100;
|
|
this.isAdjustingOpacity = false;
|
|
this.internalClipboard = [];
|
|
}
|
|
|
|
|
|
// Operacje na warstwach
|
|
async copySelectedLayers() {
|
|
if (this.canvas.selectedLayers.length === 0) return;
|
|
this.internalClipboard = this.canvas.selectedLayers.map(layer => ({...layer}));
|
|
log.info(`Copied ${this.internalClipboard.length} layer(s) to internal clipboard.`);
|
|
try {
|
|
const blob = await this.getFlattenedSelectionAsBlob();
|
|
if (blob) {
|
|
const item = new ClipboardItem({'image/png': blob});
|
|
await navigator.clipboard.write([item]);
|
|
log.info("Flattened selection copied to the system clipboard.");
|
|
}
|
|
} catch (error) {
|
|
log.error("Failed to copy image to system clipboard:", error);
|
|
}
|
|
}
|
|
|
|
pasteLayers() {
|
|
if (this.internalClipboard.length === 0) return;
|
|
this.canvas.saveState();
|
|
const newLayers = [];
|
|
const pasteOffset = 20;
|
|
|
|
this.internalClipboard.forEach(clipboardLayer => {
|
|
const newLayer = {
|
|
...clipboardLayer,
|
|
x: clipboardLayer.x + pasteOffset / this.canvas.viewport.zoom,
|
|
y: clipboardLayer.y + pasteOffset / this.canvas.viewport.zoom,
|
|
zIndex: this.canvas.layers.length
|
|
};
|
|
this.canvas.layers.push(newLayer);
|
|
newLayers.push(newLayer);
|
|
});
|
|
|
|
this.canvas.updateSelection(newLayers);
|
|
this.canvas.render();
|
|
log.info(`Pasted ${newLayers.length} layer(s).`);
|
|
}
|
|
|
|
async handlePaste() {
|
|
try {
|
|
if (!navigator.clipboard?.read) {
|
|
log.info("Browser does not support clipboard read API. Falling back to internal paste.");
|
|
this.pasteLayers();
|
|
return;
|
|
}
|
|
|
|
const clipboardItems = await navigator.clipboard.read();
|
|
let imagePasted = false;
|
|
|
|
for (const item of clipboardItems) {
|
|
const imageType = item.types.find(type => type.startsWith('image/'));
|
|
|
|
if (imageType) {
|
|
const blob = await item.getType(imageType);
|
|
const reader = new FileReader();
|
|
reader.onload = (event) => {
|
|
const img = new Image();
|
|
img.onload = async () => {
|
|
await this.addLayerWithImage(img, {
|
|
x: this.canvas.lastMousePosition.x - img.width / 2,
|
|
y: this.canvas.lastMousePosition.y - img.height / 2,
|
|
});
|
|
};
|
|
img.src = event.target.result;
|
|
};
|
|
reader.readAsDataURL(blob);
|
|
imagePasted = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!imagePasted) {
|
|
this.pasteLayers();
|
|
}
|
|
|
|
} catch (err) {
|
|
log.error("Paste operation failed, falling back to internal paste. Error:", err);
|
|
this.pasteLayers();
|
|
}
|
|
}
|
|
|
|
addLayerWithImage = withErrorHandling(async (image, layerProps = {}) => {
|
|
if (!image) {
|
|
throw createValidationError("Image is required for layer creation");
|
|
}
|
|
|
|
log.debug("Adding layer with image:", image);
|
|
|
|
// Wygeneruj unikalny identyfikator dla obrazu i zapisz go do IndexedDB
|
|
const imageId = generateUUID();
|
|
await saveImage(imageId, image.src);
|
|
this.canvas.imageCache.set(imageId, image.src);
|
|
|
|
const layer = {
|
|
image: image,
|
|
imageId: imageId,
|
|
x: (this.canvas.width - image.width) / 2,
|
|
y: (this.canvas.height - image.height) / 2,
|
|
width: image.width,
|
|
height: image.height,
|
|
rotation: 0,
|
|
zIndex: this.canvas.layers.length,
|
|
blendMode: 'normal',
|
|
opacity: 1,
|
|
...layerProps
|
|
};
|
|
|
|
this.canvas.layers.push(layer);
|
|
this.canvas.updateSelection([layer]);
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
|
|
log.info("Layer added successfully");
|
|
return layer;
|
|
}, 'CanvasLayers.addLayerWithImage');
|
|
|
|
async addLayer(image) {
|
|
return this.addLayerWithImage(image);
|
|
}
|
|
|
|
async removeLayer(index) {
|
|
if (index >= 0 && index < this.canvas.layers.length) {
|
|
const layer = this.canvas.layers[index];
|
|
if (layer.imageId) {
|
|
// Usuń obraz z IndexedDB, jeśli nie jest używany przez inne warstwy
|
|
const isImageUsedElsewhere = this.canvas.layers.some((l, i) => i !== index && l.imageId === layer.imageId);
|
|
if (!isImageUsedElsewhere) {
|
|
await removeImage(layer.imageId);
|
|
this.canvas.imageCache.delete(layer.imageId); // Usuń z pamięci podręcznej
|
|
}
|
|
}
|
|
this.canvas.layers.splice(index, 1);
|
|
this.canvas.selectedLayer = this.canvas.layers[this.canvas.layers.length - 1] || null;
|
|
this.canvas.render();
|
|
}
|
|
}
|
|
|
|
moveLayer(fromIndex, toIndex) {
|
|
if (fromIndex >= 0 && fromIndex < this.canvas.layers.length &&
|
|
toIndex >= 0 && toIndex < this.canvas.layers.length) {
|
|
const layer = this.canvas.layers.splice(fromIndex, 1)[0];
|
|
this.canvas.layers.splice(toIndex, 0, layer);
|
|
this.canvas.render();
|
|
}
|
|
}
|
|
|
|
moveLayerUp() {
|
|
if (this.canvas.selectedLayers.length === 0) return;
|
|
const selectedIndicesSet = new Set(this.canvas.selectedLayers.map(layer => this.canvas.layers.indexOf(layer)));
|
|
|
|
const sortedIndices = Array.from(selectedIndicesSet).sort((a, b) => b - a);
|
|
|
|
sortedIndices.forEach(index => {
|
|
const targetIndex = index + 1;
|
|
|
|
if (targetIndex < this.canvas.layers.length && !selectedIndicesSet.has(targetIndex)) {
|
|
[this.canvas.layers[index], this.canvas.layers[targetIndex]] = [this.canvas.layers[targetIndex], this.canvas.layers[index]];
|
|
}
|
|
});
|
|
this.canvas.layers.forEach((layer, i) => layer.zIndex = i);
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
moveLayerDown() {
|
|
if (this.canvas.selectedLayers.length === 0) return;
|
|
const selectedIndicesSet = new Set(this.canvas.selectedLayers.map(layer => this.canvas.layers.indexOf(layer)));
|
|
|
|
const sortedIndices = Array.from(selectedIndicesSet).sort((a, b) => a - b);
|
|
|
|
sortedIndices.forEach(index => {
|
|
const targetIndex = index - 1;
|
|
|
|
if (targetIndex >= 0 && !selectedIndicesSet.has(targetIndex)) {
|
|
[this.canvas.layers[index], this.canvas.layers[targetIndex]] = [this.canvas.layers[targetIndex], this.canvas.layers[index]];
|
|
}
|
|
});
|
|
this.canvas.layers.forEach((layer, i) => layer.zIndex = i);
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
getLayerAtPosition(worldX, worldY) {
|
|
for (let i = this.canvas.layers.length - 1; i >= 0; i--) {
|
|
const layer = this.canvas.layers[i];
|
|
|
|
const centerX = layer.x + layer.width / 2;
|
|
const centerY = layer.y + layer.height / 2;
|
|
|
|
const dx = worldX - centerX;
|
|
const dy = worldY - centerY;
|
|
|
|
const rad = -layer.rotation * Math.PI / 180;
|
|
const rotatedX = dx * Math.cos(rad) - dy * Math.sin(rad);
|
|
const rotatedY = dx * Math.sin(rad) + dy * Math.cos(rad);
|
|
|
|
if (Math.abs(rotatedX) <= layer.width / 2 && Math.abs(rotatedY) <= layer.height / 2) {
|
|
const localX = rotatedX + layer.width / 2;
|
|
const localY = rotatedY + layer.height / 2;
|
|
|
|
return {
|
|
layer: layer,
|
|
localX: localX,
|
|
localY: localY
|
|
};
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
resizeLayer(scale) {
|
|
this.canvas.selectedLayers.forEach(layer => {
|
|
layer.width *= scale;
|
|
layer.height *= scale;
|
|
});
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
rotateLayer(angle) {
|
|
this.canvas.selectedLayers.forEach(layer => {
|
|
layer.rotation += angle;
|
|
});
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
async mirrorHorizontal() {
|
|
if (this.canvas.selectedLayers.length === 0) return;
|
|
|
|
const promises = this.canvas.selectedLayers.map(layer => {
|
|
return new Promise(resolve => {
|
|
const tempCanvas = document.createElement('canvas');
|
|
const tempCtx = tempCanvas.getContext('2d');
|
|
tempCanvas.width = layer.image.width;
|
|
tempCanvas.height = layer.image.height;
|
|
|
|
tempCtx.translate(tempCanvas.width, 0);
|
|
tempCtx.scale(-1, 1);
|
|
tempCtx.drawImage(layer.image, 0, 0);
|
|
|
|
const newImage = new Image();
|
|
newImage.onload = () => {
|
|
layer.image = newImage;
|
|
resolve();
|
|
};
|
|
newImage.src = tempCanvas.toDataURL();
|
|
});
|
|
});
|
|
|
|
await Promise.all(promises);
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
async mirrorVertical() {
|
|
if (this.canvas.selectedLayers.length === 0) return;
|
|
|
|
const promises = this.canvas.selectedLayers.map(layer => {
|
|
return new Promise(resolve => {
|
|
const tempCanvas = document.createElement('canvas');
|
|
const tempCtx = tempCanvas.getContext('2d');
|
|
tempCanvas.width = layer.image.width;
|
|
tempCanvas.height = layer.image.height;
|
|
|
|
tempCtx.translate(0, tempCanvas.height);
|
|
tempCtx.scale(1, -1);
|
|
tempCtx.drawImage(layer.image, 0, 0);
|
|
|
|
const newImage = new Image();
|
|
newImage.onload = () => {
|
|
layer.image = newImage;
|
|
resolve();
|
|
};
|
|
newImage.src = tempCanvas.toDataURL();
|
|
});
|
|
});
|
|
|
|
await Promise.all(promises);
|
|
this.canvas.render();
|
|
this.canvas.saveState();
|
|
}
|
|
|
|
async getLayerImageData(layer) {
|
|
try {
|
|
const tempCanvas = document.createElement('canvas');
|
|
const tempCtx = tempCanvas.getContext('2d');
|
|
|
|
tempCanvas.width = layer.width;
|
|
tempCanvas.height = layer.height;
|
|
|
|
tempCtx.clearRect(0, 0, tempCanvas.width, tempCanvas.height);
|
|
|
|
tempCtx.save();
|
|
tempCtx.translate(layer.width / 2, layer.height / 2);
|
|
tempCtx.rotate(layer.rotation * Math.PI / 180);
|
|
tempCtx.drawImage(
|
|
layer.image,
|
|
-layer.width / 2,
|
|
-layer.height / 2,
|
|
layer.width,
|
|
layer.height
|
|
);
|
|
tempCtx.restore();
|
|
|
|
const dataUrl = tempCanvas.toDataURL('image/png');
|
|
if (!dataUrl.startsWith('data:image/png;base64,')) {
|
|
throw new Error("Invalid image data format");
|
|
}
|
|
|
|
return dataUrl;
|
|
} catch (error) {
|
|
log.error("Error getting layer image data:", error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
|
|
updateCanvasSize(width, height, saveHistory = true) {
|
|
if (saveHistory) {
|
|
this.canvas.saveState();
|
|
}
|
|
this.canvas.width = width;
|
|
this.canvas.height = height;
|
|
this.canvas.maskTool.resize(width, height);
|
|
|
|
this.canvas.canvas.width = width;
|
|
this.canvas.canvas.height = height;
|
|
|
|
this.canvas.render();
|
|
|
|
if (saveHistory) {
|
|
this.canvas.saveStateToDB();
|
|
}
|
|
}
|
|
|
|
addMattedLayer(image, mask) {
|
|
const layer = {
|
|
image: image,
|
|
mask: mask,
|
|
x: 0,
|
|
y: 0,
|
|
width: image.width,
|
|
height: image.height,
|
|
rotation: 0,
|
|
zIndex: this.canvas.layers.length
|
|
};
|
|
|
|
this.canvas.layers.push(layer);
|
|
this.canvas.selectedLayer = layer;
|
|
this.canvas.render();
|
|
}
|
|
|
|
// Funkcje pomocnicze dla transformacji warstw
|
|
isRotationHandle(x, y) {
|
|
if (!this.canvas.selectedLayer) return false;
|
|
|
|
const handleX = this.canvas.selectedLayer.x + this.canvas.selectedLayer.width / 2;
|
|
const handleY = this.canvas.selectedLayer.y - 20;
|
|
const handleRadius = 5;
|
|
|
|
return Math.sqrt(Math.pow(x - handleX, 2) + Math.pow(y - handleY, 2)) <= handleRadius;
|
|
}
|
|
|
|
getHandles(layer) {
|
|
if (!layer) return {};
|
|
|
|
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 localHandles = {
|
|
'n': {x: 0, y: -halfH},
|
|
'ne': {x: halfW, y: -halfH},
|
|
'e': {x: halfW, y: 0},
|
|
'se': {x: halfW, y: halfH},
|
|
's': {x: 0, y: halfH},
|
|
'sw': {x: -halfW, y: halfH},
|
|
'w': {x: -halfW, y: 0},
|
|
'nw': {x: -halfW, y: -halfH},
|
|
'rot': {x: 0, y: -halfH - 20 / this.canvas.viewport.zoom}
|
|
};
|
|
|
|
const worldHandles = {};
|
|
for (const key in localHandles) {
|
|
const p = localHandles[key];
|
|
worldHandles[key] = {
|
|
x: centerX + (p.x * cos - p.y * sin),
|
|
y: centerY + (p.x * sin + p.y * cos)
|
|
};
|
|
}
|
|
return worldHandles;
|
|
}
|
|
|
|
getHandleAtPosition(worldX, worldY) {
|
|
if (this.canvas.selectedLayers.length === 0) return null;
|
|
|
|
const handleRadius = 8 / this.canvas.viewport.zoom;
|
|
for (let i = this.canvas.selectedLayers.length - 1; i >= 0; i--) {
|
|
const layer = this.canvas.selectedLayers[i];
|
|
const handles = this.getHandles(layer);
|
|
|
|
for (const key in handles) {
|
|
const handlePos = handles[key];
|
|
const dx = worldX - handlePos.x;
|
|
const dy = worldY - handlePos.y;
|
|
if (dx * dx + dy * dy <= handleRadius * handleRadius) {
|
|
return {layer: layer, handle: key};
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
getResizeHandle(x, y) {
|
|
if (!this.canvas.selectedLayer) return null;
|
|
|
|
const handleRadius = 5;
|
|
const handles = {
|
|
'nw': {x: this.canvas.selectedLayer.x, y: this.canvas.selectedLayer.y},
|
|
'ne': {x: this.canvas.selectedLayer.x + this.canvas.selectedLayer.width, y: this.canvas.selectedLayer.y},
|
|
'se': {
|
|
x: this.canvas.selectedLayer.x + this.canvas.selectedLayer.width,
|
|
y: this.canvas.selectedLayer.y + this.canvas.selectedLayer.height
|
|
},
|
|
'sw': {x: this.canvas.selectedLayer.x, y: this.canvas.selectedLayer.y + this.canvas.selectedLayer.height}
|
|
};
|
|
|
|
for (const [position, point] of Object.entries(handles)) {
|
|
if (Math.sqrt(Math.pow(x - point.x, 2) + Math.pow(y - point.y, 2)) <= handleRadius) {
|
|
return position;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
|
|
// Funkcje związane z blend mode i opacity
|
|
showBlendModeMenu(x, y) {
|
|
const existingMenu = document.getElementById('blend-mode-menu');
|
|
if (existingMenu) {
|
|
document.body.removeChild(existingMenu);
|
|
}
|
|
|
|
const menu = document.createElement('div');
|
|
menu.id = 'blend-mode-menu';
|
|
menu.style.cssText = `
|
|
position: fixed;
|
|
left: ${x}px;
|
|
top: ${y}px;
|
|
background: #2a2a2a;
|
|
border: 1px solid #3a3a3a;
|
|
border-radius: 4px;
|
|
padding: 5px;
|
|
z-index: 1000;
|
|
box-shadow: 0 2px 10px rgba(0,0,0,0.3);
|
|
`;
|
|
|
|
this.blendModes.forEach(mode => {
|
|
const container = document.createElement('div');
|
|
container.className = 'blend-mode-container';
|
|
container.style.cssText = `
|
|
margin-bottom: 5px;
|
|
`;
|
|
|
|
const option = document.createElement('div');
|
|
option.style.cssText = `
|
|
padding: 5px 10px;
|
|
color: white;
|
|
cursor: pointer;
|
|
transition: background-color 0.2s;
|
|
`;
|
|
option.textContent = `${mode.label} (${mode.name})`;
|
|
|
|
const slider = document.createElement('input');
|
|
slider.type = 'range';
|
|
slider.min = '0';
|
|
slider.max = '100';
|
|
|
|
slider.value = this.canvas.selectedLayer.opacity ? Math.round(this.canvas.selectedLayer.opacity * 100) : 100;
|
|
slider.style.cssText = `
|
|
width: 100%;
|
|
margin: 5px 0;
|
|
display: none;
|
|
`;
|
|
|
|
if (this.canvas.selectedLayer.blendMode === mode.name) {
|
|
slider.style.display = 'block';
|
|
option.style.backgroundColor = '#3a3a3a';
|
|
}
|
|
|
|
option.onclick = () => {
|
|
menu.querySelectorAll('input[type="range"]').forEach(s => {
|
|
s.style.display = 'none';
|
|
});
|
|
menu.querySelectorAll('.blend-mode-container div').forEach(d => {
|
|
d.style.backgroundColor = '';
|
|
});
|
|
|
|
slider.style.display = 'block';
|
|
option.style.backgroundColor = '#3a3a3a';
|
|
|
|
if (this.canvas.selectedLayer) {
|
|
this.canvas.selectedLayer.blendMode = mode.name;
|
|
this.canvas.render();
|
|
}
|
|
};
|
|
|
|
slider.addEventListener('input', () => {
|
|
if (this.canvas.selectedLayer) {
|
|
this.canvas.selectedLayer.opacity = slider.value / 100;
|
|
this.canvas.render();
|
|
}
|
|
});
|
|
|
|
slider.addEventListener('change', async () => {
|
|
if (this.canvas.selectedLayer) {
|
|
this.canvas.selectedLayer.opacity = slider.value / 100;
|
|
this.canvas.render();
|
|
|
|
// Funkcja fallback do zapisu
|
|
const saveWithFallback = async (fileName) => {
|
|
try {
|
|
const uniqueFileName = generateUniqueFileName(fileName, this.canvas.node.id);
|
|
return await this.canvas.saveToServer(uniqueFileName);
|
|
} catch (error) {
|
|
console.warn(`Failed to save with unique name, falling back to original: ${fileName}`, error);
|
|
return await this.canvas.saveToServer(fileName);
|
|
}
|
|
};
|
|
|
|
await saveWithFallback(this.canvas.widget.value);
|
|
if (this.canvas.node) {
|
|
app.graph.runStep();
|
|
}
|
|
}
|
|
});
|
|
|
|
container.appendChild(option);
|
|
container.appendChild(slider);
|
|
menu.appendChild(container);
|
|
});
|
|
|
|
document.body.appendChild(menu);
|
|
|
|
const closeMenu = (e) => {
|
|
if (!menu.contains(e.target)) {
|
|
document.body.removeChild(menu);
|
|
document.removeEventListener('mousedown', closeMenu);
|
|
}
|
|
};
|
|
setTimeout(() => {
|
|
document.addEventListener('mousedown', closeMenu);
|
|
}, 0);
|
|
}
|
|
|
|
closeBlendModeMenu() {
|
|
const menu = document.getElementById('blend-mode-menu');
|
|
if (menu) {
|
|
document.body.removeChild(menu);
|
|
}
|
|
}
|
|
|
|
handleBlendModeSelection(mode) {
|
|
if (this.selectedBlendMode === mode && !this.isAdjustingOpacity) {
|
|
this.applyBlendMode(mode, this.blendOpacity);
|
|
this.closeBlendModeMenu();
|
|
} else {
|
|
this.selectedBlendMode = mode;
|
|
this.isAdjustingOpacity = true;
|
|
this.showOpacitySlider(mode);
|
|
}
|
|
}
|
|
|
|
showOpacitySlider(mode) {
|
|
const slider = document.createElement('input');
|
|
slider.type = 'range';
|
|
slider.min = '0';
|
|
slider.max = '100';
|
|
slider.value = this.blendOpacity;
|
|
slider.className = 'blend-opacity-slider';
|
|
|
|
slider.addEventListener('input', (e) => {
|
|
this.blendOpacity = parseInt(e.target.value);
|
|
});
|
|
|
|
const modeElement = document.querySelector(`[data-blend-mode="${mode}"]`);
|
|
if (modeElement) {
|
|
modeElement.appendChild(slider);
|
|
}
|
|
}
|
|
|
|
applyBlendMode(mode, opacity) {
|
|
this.currentLayer.style.mixBlendMode = mode;
|
|
this.currentLayer.style.opacity = opacity / 100;
|
|
|
|
this.selectedBlendMode = null;
|
|
this.isAdjustingOpacity = false;
|
|
}
|
|
|
|
// Funkcje do generowania blob z canvasu
|
|
async getFlattenedCanvasAsBlob() {
|
|
return new Promise((resolve, reject) => {
|
|
const tempCanvas = document.createElement('canvas');
|
|
tempCanvas.width = this.canvas.width;
|
|
tempCanvas.height = this.canvas.height;
|
|
const tempCtx = tempCanvas.getContext('2d');
|
|
|
|
const sortedLayers = [...this.canvas.layers].sort((a, b) => a.zIndex - b.zIndex);
|
|
|
|
sortedLayers.forEach(layer => {
|
|
if (!layer.image) return;
|
|
|
|
tempCtx.save();
|
|
tempCtx.globalCompositeOperation = layer.blendMode || 'normal';
|
|
tempCtx.globalAlpha = layer.opacity !== undefined ? layer.opacity : 1;
|
|
const centerX = layer.x + layer.width / 2;
|
|
const centerY = layer.y + layer.height / 2;
|
|
tempCtx.translate(centerX, centerY);
|
|
tempCtx.rotate(layer.rotation * Math.PI / 180);
|
|
tempCtx.drawImage(
|
|
layer.image,
|
|
-layer.width / 2,
|
|
-layer.height / 2,
|
|
layer.width,
|
|
layer.height
|
|
);
|
|
|
|
tempCtx.restore();
|
|
});
|
|
|
|
tempCanvas.toBlob((blob) => {
|
|
if (blob) {
|
|
resolve(blob);
|
|
} else {
|
|
reject(new Error('Canvas toBlob failed.'));
|
|
}
|
|
}, 'image/png');
|
|
});
|
|
}
|
|
|
|
// Funkcja do generowania blob z zaznaczonych warstw
|
|
async getFlattenedSelectionAsBlob() {
|
|
if (this.canvas.selectedLayers.length === 0) {
|
|
return null;
|
|
}
|
|
|
|
return new Promise((resolve) => {
|
|
let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
|
|
this.canvas.selectedLayers.forEach(layer => {
|
|
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 corners = [
|
|
{x: -halfW, y: -halfH},
|
|
{x: halfW, y: -halfH},
|
|
{x: halfW, y: halfH},
|
|
{x: -halfW, y: halfH}
|
|
];
|
|
|
|
corners.forEach(p => {
|
|
const worldX = centerX + (p.x * cos - p.y * sin);
|
|
const worldY = centerY + (p.x * sin + p.y * cos);
|
|
|
|
minX = Math.min(minX, worldX);
|
|
minY = Math.min(minY, worldY);
|
|
maxX = Math.max(maxX, worldX);
|
|
maxY = Math.max(maxY, worldY);
|
|
});
|
|
});
|
|
|
|
const newWidth = Math.ceil(maxX - minX);
|
|
const newHeight = Math.ceil(maxY - minY);
|
|
|
|
if (newWidth <= 0 || newHeight <= 0) {
|
|
resolve(null);
|
|
return;
|
|
}
|
|
const tempCanvas = document.createElement('canvas');
|
|
tempCanvas.width = newWidth;
|
|
tempCanvas.height = newHeight;
|
|
const tempCtx = tempCanvas.getContext('2d');
|
|
|
|
tempCtx.translate(-minX, -minY);
|
|
|
|
const sortedSelection = [...this.canvas.selectedLayers].sort((a, b) => a.zIndex - b.zIndex);
|
|
|
|
sortedSelection.forEach(layer => {
|
|
if (!layer.image) return;
|
|
|
|
tempCtx.save();
|
|
tempCtx.globalCompositeOperation = layer.blendMode || 'normal';
|
|
tempCtx.globalAlpha = layer.opacity !== undefined ? layer.opacity : 1;
|
|
|
|
const centerX = layer.x + layer.width / 2;
|
|
const centerY = layer.y + layer.height / 2;
|
|
tempCtx.translate(centerX, centerY);
|
|
tempCtx.rotate(layer.rotation * Math.PI / 180);
|
|
tempCtx.drawImage(
|
|
layer.image,
|
|
-layer.width / 2, -layer.height / 2,
|
|
layer.width, layer.height
|
|
);
|
|
tempCtx.restore();
|
|
});
|
|
tempCanvas.toBlob((blob) => {
|
|
resolve(blob);
|
|
}, 'image/png');
|
|
});
|
|
}
|
|
}
|