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Watermark opacity (#76)

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This commit is contained in:
Anthony Stirling
2023-03-24 13:30:26 +00:00
committed by GitHub
parent 472082cb03
commit f866c8a61f
9 changed files with 58 additions and 3 deletions
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39
src/main/resources/templates/security/add-watermark.html
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@@ -26,6 +26,45 @@
<label for="fontSize" th:text="#{watermark.selectText.3}"></label>
<input type="text" id="fontSize" name="fontSize" class="form-control" value="30" />
</div>
<div class="form-group">
<label for="opacity" th:text="#{watermark.selectText.7}"></label>
<input type="text" id="opacity" name="opacityText" class="form-control" value="50" onblur="updateopacityValue()" />
<input type="hidden" id="opacityReal" name="opacity" value="0.5">
</div>
<script>
const opacityInput = document.getElementById('opacity');
const opacityRealInput = document.getElementById('opacityReal');
const updateopacityValue = () => {
let percentageValue = parseFloat(opacityInput.value.replace('%', ''));
if (isNaN(percentageValue)) {
percentageValue = 0;
}
percentageValue = Math.min(Math.max(percentageValue, 0), 100);
opacityInput.value = `${percentageValue}`;
opacityRealInput.value = (percentageValue / 100).toFixed(2);
};
const appendPercentageSymbol = () => {
if (!opacityInput.value.endsWith('%')) {
opacityInput.value += '%';
}
};
opacityInput.addEventListener('focus', () => {
opacityInput.value = opacityInput.value.replace('%', '');
});
opacityInput.addEventListener('blur', () => {
updateopacityValue();
appendPercentageSymbol();
});
// Set initial values
updateopacityValue();
appendPercentageSymbol();
</script>
<div class="form-group">
<label for="rotation" th:text="#{watermark.selectText.4}"></label>
<input type="text" id="rotation" name="rotation" class="form-control" value="45" />