jws-frontend/src/components/CanvasComponent.vue
2024-06-07 12:20:57 +00:00

143 lines
3.4 KiB
Vue

<script lang="ts" setup>
import { onMounted, ref } from 'vue';
import SignaturePad from 'signature_pad';
defineExpose({ clearCanvas });
let canvasRef: HTMLCanvasElement | null = null;
const signaturePad = ref();
const currentColor = ref('blue');
const tab = ref('draw');
const initializeSignaturePad = () => {
if (canvasRef) {
signaturePad.value = new SignaturePad(canvasRef, {
backgroundColor: 'rgb(248,249,250)',
penColor: 'blue',
});
} else {
console.warn('Canvas reference not found. SignaturePad not initialized.');
}
};
function changeColor(color: string) {
signaturePad.value.penColor = color;
currentColor.value = color;
}
function clearCanvas() {
signaturePad.value.clear();
}
onMounted(() => {
canvasRef = document.querySelector('canvas');
initializeSignaturePad();
});
</script>
<template>
<div class="surface-1 bordered rounded">
<q-tabs
v-model="tab"
dense
align="left"
class="text-grey"
active-color="primary"
indicator-color="primary"
>
<q-tab
name="draw"
label="Draw"
style="border-top-left-radius: var(--radius-2)"
/>
<q-tab name="upload" label="Upload" />
</q-tabs>
<q-separator />
<q-tab-panels v-model="tab" animated>
<q-tab-panel name="draw">
<div class="column relative-position">
<div
class="absolute-top-right q-ma-md q-gutter-x-md row items-center"
>
<span
class="dot"
:class="{ active: currentColor === 'black' }"
style="background-color: black"
@click="changeColor('black')"
>
<q-icon
v-if="currentColor === 'black'"
name="mdi-check"
color="white"
size="sm"
/>
</span>
<span
:class="{ active: currentColor === 'red' }"
class="dot"
style="background-color: red"
@click="changeColor('red')"
>
<q-icon
v-if="currentColor === 'red'"
name="mdi-check"
color="white"
size="sm"
/>
</span>
<span
:class="{ active: currentColor === 'blue' }"
class="dot"
style="background-color: blue"
@click="changeColor('blue')"
>
<q-icon
v-if="currentColor === 'blue'"
name="mdi-check"
color="white"
size="sm"
/>
</span>
</div>
<canvas
class="signature-canvas"
ref="canvasRef"
id="signature-pad"
width="650"
height="300"
></canvas>
</div>
</q-tab-panel>
</q-tab-panels>
<!-- <div class="text-right q-gutter-x-md">
<q-btn id="clear" label="Clear" @click="signaturePad.clear()" />
</div> -->
</div>
</template>
<style scoped lang="scss">
.signature-canvas {
border: 1px solid var(--border-color);
border-radius: var(--radius-2);
}
.dot {
height: 25px;
width: 25px;
border-radius: 50%;
display: inline-flex;
justify-content: center;
align-items: center;
&.active {
height: 35px;
width: 35px;
}
}
.color-palette {
position: absolute;
display: inline-block;
}
</style>