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Feat/albas improvements #644

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Feat/albas improvements #644

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897cd88
Refractor to different state
loiddy Jul 18, 2024
3e7925f
Move functions out of main
loiddy Jul 24, 2024
27873a6
Fix: initialise aspect ratio in demo so it matches logic
loiddy Jul 27, 2024
9a64ec5
Fix: emit settingsUpdated when there's no image loaded but settings h…
loiddy Jul 27, 2024
dbd76d9
Improve setting cropper size bounds and checkSizeAndPosition (previou…
loiddy Jul 27, 2024
7bf39eb
Fix: Prevent code from running unless there's a change in img element…
loiddy Jul 27, 2024
cad2d0d
Improve how cropper resizes
loiddy Jul 27, 2024
f7b0e7f
Delete no longer used things
loiddy Jul 27, 2024
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54 changes: 14 additions & 40 deletions projects/demo-app/src/app/app.component.html
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<input [(ngModel)]="imageURL" placeholder="URL to load image" type="text" />
<input id="imageURL" placeholder="URL to load image" type="text" (keyup)="debounce($event)" />
<input type="file" (change)="fileChangeEvent($event)" accept="image/*" />
<br />
<br />
Expand All @@ -18,68 +18,42 @@
<input id="cropperMaxHeight" type="number" (keyup)="debounce($event)"/>
</section>
<br />
<button (click)="maintainAspectRatio = !maintainAspectRatio;" [class.enabled]="maintainAspectRatio">Maintain Aspect Ratio</button>
<button (click)="toggleAspectRatio()" [class.enabled]="maintainAspectRatio || containWithinAspectRatio">Aspect ratio: {{aspectRatio === 4/3 ? '4/3' : '16/5'}}</button>
<button (click)="containWithinAspectRatio = !containWithinAspectRatio;" [class.enabled]="containWithinAspectRatio">Fill Aspect Ratio</button>
<button (click)="settingsToUpdate = { maintainAspectRatio: !settings.maintainAspectRatio }" [class.enabled]="settings.maintainAspectRatio">Maintain Aspect Ratio</button>
<button (click)="toggleAspectRatio()" [class.enabled]="settings.maintainAspectRatio || settings.containWithinAspectRatio">Aspect ratio: {{settings.aspectRatio === 4/3 ? '4/3' : '16/5'}}</button>
<button (click)="settingsToUpdate = { containWithinAspectRatio: !settings.containWithinAspectRatio }" [class.enabled]="settings.containWithinAspectRatio">Fill Aspect Ratio</button>
<button (click)="rotateLeft()">Rotate left</button>
<button (click)="rotateRight()">Rotate right</button>
<br />
<br />
<input [ngModel]="transform.rotate!" placeholder="Rotation" type="number" (ngModelChange)="updateRotation($event)" />
<input [ngModel]="settings.transform.rotate" placeholder="Rotation" type="number" (ngModelChange)="updateRotation($event)" />
<button (click)="zoomOut()">Zoom -</button>
<button (click)="zoomIn()">Zoom +</button>
<button (click)="moveLeft()">move left</button>
<button (click)="moveRight()">move right</button>
<button (click)="moveUp()">move up</button>
<button (click)="moveDown()">move down</button>
<button (click)="flipHorizontal()" [class.enabled]="transform.flipH">Flip horizontal</button>
<button (click)="flipVertical()" [class.enabled]="transform.flipV">Flip vertical</button>
<button (click)="allowMoveImage = !allowMoveImage;" [class.enabled]="allowMoveImage">Image panning</button>
<button (click)="flipHorizontal()" [class.enabled]="settings.transform.flipX">Flip horizontal</button>
<button (click)="flipVertical()" [class.enabled]="settings.transform.flipY">Flip vertical</button>
<button (click)="settingsToUpdate = { allowMoveImage: !settings.allowMoveImage}" [class.enabled]="settings.allowMoveImage">Image panning</button>
<br/>
<br/>
<button (click)="hidden = !hidden;" [class.hidden]="maintainAspectRatio">Hidden</button>
<button (click)="disabled = !disabled;" [class.enabled]="disabled">Disable</button>
<button (click)="hideResizeSquares = !hideResizeSquares;" [class.enabled]="hideResizeSquares">Hide Resize Squares</button>
<button (click)="resetCropOnAspectRatioChange = !resetCropOnAspectRatioChange;" [class.enabled]="resetCropOnAspectRatioChange">Reset Crop On Aspect Ratio Change</button>
<button (click)="toggleBackgroundColor()" style="color:white" [style.background-color]="backgroundColor">Background Color</button>
<button (click)="settingsToUpdate = { hidden: !settings.hidden }" [class.hidden]="settings.maintainAspectRatio">Hidden</button>
<button (click)="settingsToUpdate = { disabled: !settings.disabled }" [class.enabled]="settings.disabled">Disable</button>
<button (click)="settingsToUpdate = { hideResizeSquares: !settings.hideResizeSquares }" [class.enabled]="settings.hideResizeSquares">Hide Resize Squares</button>
<button (click)="toggleBackgroundColor()" [style.color]="settings.backgroundColor ? 'white': '#007bff'" [style.background-color]="settings.backgroundColor">Background Color</button>
<button (click)="test()">Random test</button>
<button (click)="resetImage()">Reset image</button>
<br/>
<br/>

<div [style.display]="showCropper ? null : 'none'" class="cropper-wrapper">
<image-cropper
[imageChangedEvent]="imageChangedEvent"
[imageURL]="imageURL"
[hidden]="hidden"
[disabled]="disabled"
[alignImage]="alignImage"
[roundCropper]="roundCropper"
[backgroundColor]="backgroundColor"
imageAltText="Alternative image text"
[allowMoveImage]="allowMoveImage"
[hideResizeSquares]="hideResizeSquares"
[canvasRotation]="canvasRotation"
[aspectRatio]="aspectRatio"
[containWithinAspectRatio]="containWithinAspectRatio"
[maintainAspectRatio]="maintainAspectRatio"
[cropperStaticWidth]="cropperStaticWidth"
[cropperStaticHeight]="cropperStaticHeight"
[cropperMinWidth]="cropperMinWidth"
[cropperMinHeight]="cropperMinHeight"
[cropperMaxWidth]="cropperMaxWidth"
[cropperMaxHeight]="cropperMaxHeight"
[resetCropOnAspectRatioChange]="resetCropOnAspectRatioChange"
[(cropper)]="cropper"
[(transform)]="transform"
[onlyScaleDown]="true"
output="blob"
format="png"
[settingsToUpdate]="settingsToUpdate"
(settingsUpdated)="settingsUpdated($event)"
(imageCropped)="imageCropped($event)"
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(imageLoaded)="imageLoaded()"
(cropperReady)="cropperReady($event)"
(loadImageFailed)="loadImageFailed()"
(transformChange)="transformChange($event)"
></image-cropper>
<div *ngIf="loading" class="loader">Loading...</div>
</div>
Expand Down
172 changes: 56 additions & 116 deletions projects/demo-app/src/app/app.component.ts
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Original file line number Diff line number Diff line change
@@ -1,10 +1,13 @@
import { Component } from '@angular/core';
import {
CropperPosition,
Dimensions,
getCropperInitValue,
getTransformInitValue,
getImageCropperSettingsInitValue,
ImageCroppedEvent,
ImageCropperComponent,
ImageTransform
ImageCropperSettings,
PartialImageCropperSettings,
} from 'ngx-image-cropper';
import { DomSanitizer, SafeUrl } from '@angular/platform-browser';
import { NgIf } from '@angular/common';
Expand All @@ -22,39 +25,11 @@ export class AppComponent {
loading = false;
croppedImage: SafeUrl = '';

imageChangedEvent: Event | null = null;
imageURL?: string;
hidden = false;
disabled = false;
alignImage = 'center' as const;
roundCropper = false;
backgroundColor = 'red';
allowMoveImage = false;
hideResizeSquares = false;
canvasRotation = 0;
aspectRatio = 4 / 3;
containWithinAspectRatio = false;
maintainAspectRatio = false;
cropperStaticWidth = 0;
cropperStaticHeight = 0;
cropperMinWidth = 0;
cropperMinHeight = 0;
cropperMaxWidth = 0;
cropperMaxHeight = 0;
resetCropOnAspectRatioChange = true;
cropper?: CropperPosition;
transform: ImageTransform = {
translateUnit: 'px',
scale: 1,
rotate: 0,
flipH: false,
flipV: false,
translateH: 0,
translateV: 0
};

timeout: any;
eventList = {};

settings: ImageCropperSettings = getImageCropperSettingsInitValue();
settingsToUpdate: PartialImageCropperSettings = { aspectRatio: 16/5 };

constructor(
private sanitizer: DomSanitizer
Expand All @@ -63,153 +38,121 @@ export class AppComponent {

fileChangeEvent(event: Event): void {
this.loading = true;
this.imageChangedEvent = event;
}

imageCropped(event: ImageCroppedEvent) {
this.croppedImage = this.sanitizer.bypassSecurityTrustUrl(event.objectUrl || event.base64 || '');
console.log('CROPPED', event);
this.settingsToUpdate = { imageSource: { imageChangedEvent : event } }
}

imageLoaded() {
this.showCropper = true;
console.log('Image loaded');
}

loadImageFailed() {
console.error('Load image failed');
}

settingsUpdated(settings: ImageCropperSettings){
this.settings = settings;
}

cropperReady(sourceImageDimensions: Dimensions) {
console.log('Cropper ready', sourceImageDimensions);
this.loading = false;
}

loadImageFailed() {
console.error('Load image failed');
}

transformChange(transform: ImageTransform) {
console.log('transform changed', transform);
imageCropped(event: ImageCroppedEvent) {
this.croppedImage = this.sanitizer.bypassSecurityTrustUrl(event.objectUrl || event.base64 || '');
console.log('CROPPED', event);
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}

rotateLeft() {
this.loading = true;
setTimeout(() => { // Use timeout because rotating image is a heavy operation and will block the ui thread
this.canvasRotation--;
this.flipAfterRotate();
this.settingsToUpdate = { canvasRotation: --this.settings.canvasRotation, ...this.flipAfterRotate() };
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});
}

rotateRight() {
this.loading = true;
setTimeout(() => {
this.canvasRotation++;
this.flipAfterRotate();
setTimeout(() => {
this.settingsToUpdate = { canvasRotation: ++this.settings.canvasRotation, ...this.flipAfterRotate() };
});
}

moveLeft() {
this.transform = {
...this.transform,
translateH: this.transform.translateH! - 1
};
this.settingsToUpdate = { transform: { translateX: --this.settings.transform.translateX } };
}

moveRight() {
this.transform = {
...this.transform,
translateH: this.transform.translateH! + 1
};
this.settingsToUpdate = { transform: { translateX: this.settings.transform.translateX + 1 } };
}

moveDown() {
this.transform = {
...this.transform,
translateV: this.transform.translateV! + 1
};
moveUp() {
this.settingsToUpdate = { transform: { translateY: --this.settings.transform.translateY } };
}

moveUp() {
this.transform = {
...this.transform,
translateV: this.transform.translateV! - 1
};
moveDown() {
this.settingsToUpdate = { transform: { translateY: ++this.settings.transform.translateY } };
}

private flipAfterRotate() {
const flippedH = this.transform.flipH;
const flippedV = this.transform.flipV;
this.transform = {
...this.transform,
flipH: flippedV,
flipV: flippedH,
translateH: 0,
translateV: 0
return {
transform: {
flipX: this.settings.transform.flipY,
flipY: this.settings.transform.flipX,
translateX: 0,
translateY: 0
}
};
}

flipHorizontal() {
this.transform = {
...this.transform,
flipH: !this.transform.flipH
};
this.settingsToUpdate = { transform: { flipX: !this.settings.transform.flipX } };
}

flipVertical() {
this.transform = {
...this.transform,
flipV: !this.transform.flipV
};
this.settingsToUpdate = { transform: { flipY: !this.settings.transform.flipY } };
}

resetImage() {
this.canvasRotation = 0;
this.cropper = undefined;
this.maintainAspectRatio = false;
this.transform = {
translateUnit: 'px',
scale: 1,
rotate: 0,
flipH: false,
flipV: false,
translateH: 0,
translateV: 0
this.settingsToUpdate = {
canvasRotation: 0,
cropper: getCropperInitValue(),
maintainAspectRatio: false,
transform: getTransformInitValue(),
};
}

zoomOut() {
this.transform = {
...this.transform,
scale: this.transform.scale! - .1
};
this.settingsToUpdate = { transform: { scale: this.settings.transform.scale - .1 } };
}

zoomIn() {
this.transform = {
...this.transform,
scale: this.transform.scale! + .1
};
this.settingsToUpdate = { transform: { scale: this.settings.transform.scale + .1 } };
}

updateRotation(rotate: number) {
this.transform = {
...this.transform,
rotate
};
this.settingsToUpdate = { transform: { scale: this.settings.transform.rotate } };
}

toggleAspectRatio() {
this.aspectRatio = this.aspectRatio === 4 / 3 ? 16 / 5 : 4 / 3;
this.settingsToUpdate = { aspectRatio: this.settings.aspectRatio === 4 / 3 ? 16 / 5 : 4 / 3 };
}

toggleBackgroundColor() {
this.backgroundColor = this.backgroundColor === 'red' ? 'blue' : 'red';
this.settingsToUpdate = { backgroundColor: this.settings.backgroundColor === 'red' ? 'blue' : 'red' };
}

// prevent over triggering app when typing
debounce(event: any) {
clearTimeout(this.timeout);
(this.eventList as any)[event.target!.id] = event.target.value;
(this.eventList as any)[event.target.id] = event.target.value;
this.timeout = setTimeout(() => {
for (const [key, value] of Object.entries(this.eventList)) {
(this as any)[key] = Number(value);
if (key === 'imageURL') {
this.settingsToUpdate = { imageSource: { [key]: value as string }};
} else {
this.settingsToUpdate = { [key]: Number(value) };
}
}
this.eventList = {};
}, 500);
Expand All @@ -220,11 +163,8 @@ export class AppComponent {
use it to test whatever you want
*/
test() {
this.canvasRotation = 3;
this.transform = {
...this.transform,
scale: 2
this.settingsToUpdate = {
cropper: { x1: 50, y1: 50, x2: 250, y2: 112.5 } // has 16/5 aspect ratio
};
this.cropper = {x1: 190, y1: 221.5, x2: 583, y2: 344.3125}; // has 16/5 aspect ratio
}
}
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