78 lines
1.6 KiB
Svelte
78 lines
1.6 KiB
Svelte
<script>
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var docDimensions = [0,0];
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var mapDimensions = [0,0];
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var viewPos = [0,0];
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var pos = [0,0];
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var posMouse = [0,0];
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var posMouseHook = [0,0];
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var isMouse = false;
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function mouseDown(e) {
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isMouse = true;
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};
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function mouseUp(e) {
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isMouse = false;
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};
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function mouseMove(e) {
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posMouse = [e.clientX,e.clientY];
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if (isMouse) {
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for (var i = 0; i < 2; i++) {
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var deltaPos = posMouse[i] - posMouseHook[i];
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pos[i] += deltaPos;
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var viewOffset = mapDimensions[i] - docDimensions[i];
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viewPos[i] = (pos[i] - viewOffset / 2) + 'px';
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}
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}
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posMouseHook = posMouse;
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};
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</script>
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<style>
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.document {
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width: 100vw;
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height: 100vh;
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background: var(--dark-1);
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position: fixed;
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}
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.area {
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position: absolute;
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}
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#ui-wrap {
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display: flex;
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flex-direction: row;
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justify-content: space-between;
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width: calc(100vw - 20px);
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padding: 10px;
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z-index: 1;
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color: var(--light-1);
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}
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</style>
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<svelte:window on:mousedown={mouseDown} on:mouseup={mouseUp} on:mousemove={mouseMove}/>
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<div id='ui-wrap'>
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<div>
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Mouse to pan or move map <br/>
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</div>
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</div>
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<div class='document' bind:clientWidth={docDimensions[0]} bind:clientHeight={docDimensions[1]} >
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<div class='area' bind:clientWidth={mapDimensions[0]} bind:clientHeight={mapDimensions[1]} style='top: {viewPos[1]}; left: {viewPos[0]}'>
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<img src='/map.svg' >
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</div>
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</div>
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