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<template>
<!--左下角的放大缩小-->
<div class="action-bar__wrapper">
<button v-tooltip.right="'zoom in'" class="action-btn" @click="zoomIn" :disabled="!canZoomIn">
<svgicon icon="system/editor/zoom_in" width="24" height="24"
:color="canZoomIn ? '#fff' : 'rgba(255,255,255,.5)'">
</svgicon>
</button>
<div class="zoom-value">{{Math.round(zoom * 100) + '%'}}</div>
<button v-tooltip.right="'zoom out'" class="action-btn" @click="zoomOut" :disabled="!canZoomOut">
<svgicon icon="system/editor/zoom_out" width="24" height="24"
:color="canZoomOut ? '#fff' : 'rgba(255,255,255,.5)'">
</svgicon>
</button>
</div>
</template>
<script>
import '@/assets/icons/system/editor/zoom_in'
import '@/assets/icons/system/editor/zoom_out'
const MAX_ZOOM = 2.5;
const MIN_ZOOM = 0.5;
export default {
name:'zoom-menu',
props:['zoom'],
computed:{
canZoomIn (){return this.zoom < MAX_ZOOM},
canZoomOut (){return this.zoom > MAX_ZOOM}
},
methods:{
zoomIn(){this.$emit('zoomChange', Math.round((this.zoom + 0.1) * 10) /10)},
zoomOut(){this.$emit('zoomChange',Math.round((this.zoom - 0.1) * 10) /10)}
}
}
</script>
<style scpoed>
.action-bar__wrapper{
width:48px;
z-index:1000;
display:block;
align-items:center;
box-sizing:border-box;
border-radius:50px;
opcity:0.25;
transition:opcity 0.25s cubic-bezier(0.4,0,0.2,1);
}
.action-bar__wrapper:hover{
opcity:1;
}
.action-btn{
height:36px;
width:36px;
min-width:28px;
min-height:28px;
padding:6px 0;
border-radius:100%;
background-color:transparent;
border:0px none;
user-select:none;
outline:none;
}
.action-btn:hover{
background-color:rgba(238,238,238,0.038);
}
.action-btn:active{
background-color:rgba(238,238,238,0.038);
}
.action-btn *{
vertical-align:middle;
}
.zoom-value{
text-align:center;
color:#fff;
font-size:small;
}
</style> | 
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