294 lines
10 KiB
React
294 lines
10 KiB
React
#target photoshop
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/*
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Export art layers with optional scope, format and trimming settings.
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- Can export every art layer or only layers currently visible (including parent visibility).
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- Supports PNG and JPEG with adjustable JPEG quality (0-100).
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- Can keep the full document canvas or trim transparent edges for each layer.
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- Does not add prefixes or four-digit sequence numbers.
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- Works on a duplicate, so the source document and its visibility states stay unchanged.
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- Nested art layers are supported; layer groups themselves are not exported.
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*/
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(function () {
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if (app.documents.length === 0) {
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alert("请先打开一个 PSD/PSB 文档。");
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return;
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}
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function pad2(value) {
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return value < 10 ? "0" + value : String(value);
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}
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function timeStamp() {
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var now = new Date();
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return now.getFullYear() +
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pad2(now.getMonth() + 1) +
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pad2(now.getDate()) + "_" +
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pad2(now.getHours()) +
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pad2(now.getMinutes()) +
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pad2(now.getSeconds());
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}
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function safeName(name) {
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var value = String(name);
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value = value.replace(/\.(png|jpe?g)$/i, "");
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value = value.replace(/[\\\/:*?"<>|]/g, "_");
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value = value.replace(/^\s+|\s+$/g, "");
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value = value.replace(/[\. ]+$/g, "");
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return value.length > 0 ? value : "unnamed_layer";
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}
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function showOptionsDialog() {
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var dialog = new Window("dialog", "图层导出选项");
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dialog.orientation = "column";
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dialog.alignChildren = "fill";
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var scopePanel = dialog.add("panel", undefined, "导出范围");
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scopePanel.orientation = "column";
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scopePanel.alignChildren = "left";
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scopePanel.margins = 12;
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var visibleOnly = scopePanel.add("checkbox", undefined, "仅导出当前可见图层");
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visibleOnly.value = true;
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scopePanel.add("statictext", undefined, "未勾选时导出所有普通图层");
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var formatPanel = dialog.add("panel", undefined, "文件格式");
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formatPanel.orientation = "column";
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formatPanel.alignChildren = "left";
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formatPanel.margins = 12;
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var formatChoices = formatPanel.add("group");
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formatChoices.orientation = "row";
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var pngRadio = formatChoices.add("radiobutton", undefined, "PNG");
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var jpegRadio = formatChoices.add("radiobutton", undefined, "JPEG");
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pngRadio.value = true;
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var qualityGroup = formatPanel.add("group");
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qualityGroup.orientation = "row";
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qualityGroup.alignChildren = ["left", "center"];
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var qualityLabel = qualityGroup.add("statictext", undefined, "JPEG 质量：");
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var qualitySlider = qualityGroup.add("slider", undefined, 90, 0, 100);
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qualitySlider.preferredSize.width = 180;
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var qualityValue = qualityGroup.add("statictext", undefined, "90");
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qualityValue.characters = 3;
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function setQualityEnabled(enabled) {
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qualityLabel.enabled = enabled;
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qualitySlider.enabled = enabled;
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qualityValue.enabled = enabled;
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}
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qualitySlider.onChanging = function () {
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qualityValue.text = String(Math.round(qualitySlider.value));
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};
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qualitySlider.onChange = qualitySlider.onChanging;
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pngRadio.onClick = function () {
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setQualityEnabled(false);
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};
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jpegRadio.onClick = function () {
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setQualityEnabled(true);
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};
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setQualityEnabled(false);
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var trimPanel = dialog.add("panel", undefined, "画布");
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trimPanel.orientation = "column";
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trimPanel.alignChildren = "left";
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trimPanel.margins = 12;
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var trimOutput = trimPanel.add("checkbox", undefined, "导出时裁切透明边缘");
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trimOutput.value = true;
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trimPanel.add("statictext", undefined, "未勾选时保留原文档画布尺寸");
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var buttons = dialog.add("group");
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buttons.alignment = "right";
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buttons.add("button", undefined, "取消", {name: "cancel"});
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buttons.add("button", undefined, "继续", {name: "ok"});
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if (dialog.show() !== 1) {
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return null;
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}
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return {
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visibleOnly: visibleOnly.value,
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format: jpegRadio.value ? "jpeg" : "png",
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jpegQuality: Math.round(qualitySlider.value),
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trim: trimOutput.value
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};
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}
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function collectArtLayers(container, result) {
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for (var i = 0; i < container.layers.length; i++) {
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var layer = container.layers[i];
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if (layer.typename === "ArtLayer") {
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result.push(layer);
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} else if (layer.typename === "LayerSet") {
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collectArtLayers(layer, result);
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}
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}
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}
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function isEffectivelyVisible(layer) {
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if (!layer.visible) {
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return false;
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}
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var parent = layer.parent;
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while (parent && parent.typename === "LayerSet") {
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if (!parent.visible) {
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return false;
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}
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parent = parent.parent;
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}
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return true;
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}
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function hideAllArtLayers(layers) {
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for (var i = 0; i < layers.length; i++) {
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try {
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layers[i].visible = false;
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} catch (ignore) {}
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}
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}
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function showLayerAndParents(layer) {
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layer.visible = true;
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var parent = layer.parent;
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while (parent && parent.typename === "LayerSet") {
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parent.visible = true;
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parent = parent.parent;
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}
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}
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function createUniqueOutputFolder(parent, documentName, formatLabel) {
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var baseName = safeName(documentName.replace(/\.[^\.]+$/, "")) + "_" + formatLabel;
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var folder = new Folder(parent.fsName + "/" + baseName);
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if (folder.exists) {
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folder = new Folder(parent.fsName + "/" + baseName + "_" + timeStamp());
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}
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if (!folder.create()) {
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throw new Error("无法创建输出文件夹：" + folder.fsName);
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}
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return folder;
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}
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function createExportOptions(format, jpegQuality) {
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var exportOptions = new ExportOptionsSaveForWeb();
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exportOptions.includeProfile = false;
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if (format === "jpeg") {
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exportOptions.format = SaveDocumentType.JPEG;
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exportOptions.quality = jpegQuality;
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exportOptions.optimized = true;
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} else {
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exportOptions.format = SaveDocumentType.PNG;
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exportOptions.PNG8 = false;
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exportOptions.transparency = true;
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exportOptions.interlaced = false;
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}
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return exportOptions;
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}
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var sourceDoc = app.activeDocument;
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var settings = showOptionsDialog();
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if (settings === null) {
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return;
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}
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var formatLabel = settings.format === "jpeg" ? "JPEG" : "PNG";
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var extension = settings.format === "jpeg" ? ".jpg" : ".png";
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var parentFolder = Folder.selectDialog("选择 " + formatLabel + " 导出目录");
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if (parentFolder === null) {
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return;
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}
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var oldDialogs = app.displayDialogs;
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var workDoc = null;
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try {
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app.displayDialogs = DialogModes.NO;
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workDoc = sourceDoc.duplicate();
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app.activeDocument = workDoc;
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var allLayers = [];
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var layers = [];
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collectArtLayers(workDoc, allLayers);
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for (var i = 0; i < allLayers.length; i++) {
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if (!settings.visibleOnly || isEffectivelyVisible(allLayers[i])) {
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layers.push(allLayers[i]);
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}
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}
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if (layers.length === 0) {
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if (settings.visibleOnly) {
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throw new Error("文档中没有当前可见的普通图层。");
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}
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throw new Error("文档中没有可导出的普通图层。");
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}
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var outputFolder = createUniqueOutputFolder(parentFolder, sourceDoc.name, formatLabel);
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var exportOptions = createExportOptions(settings.format, settings.jpegQuality);
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var usedNames = {};
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hideAllArtLayers(allLayers);
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for (i = 0; i < layers.length; i++) {
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hideAllArtLayers(allLayers);
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showLayerAndParents(layers[i]);
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var baseName = safeName(layers[i].name);
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var key = baseName.toLowerCase();
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if (usedNames[key] === undefined) {
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usedNames[key] = 1;
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} else {
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usedNames[key]++;
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baseName += "_" + usedNames[key];
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}
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var preTrimState = null;
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if (settings.trim) {
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preTrimState = workDoc.activeHistoryState;
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try {
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workDoc.trim(TrimType.TRANSPARENT, true, true, true, true);
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} catch (ignoreTrim) {
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// Empty/adjustment-only layers may not contain trim-able pixels.
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}
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}
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var outputFile = new File(outputFolder.fsName + "/" + baseName + extension);
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workDoc.exportDocument(outputFile, ExportType.SAVEFORWEB, exportOptions);
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if (preTrimState !== null) {
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try {
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workDoc.activeHistoryState = preTrimState;
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} catch (ignoreHistory) {}
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}
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}
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workDoc.close(SaveOptions.DONOTSAVECHANGES);
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workDoc = null;
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app.activeDocument = sourceDoc;
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app.displayDialogs = oldDialogs;
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alert(
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"导出完成：" + layers.length + " 个 " + formatLabel + "\n\n" +
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"范围 = " + (settings.visibleOnly ? "仅当前可见图层" : "所有普通图层") + "\n" +
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(settings.format === "jpeg" ? "JPEG 质量 = " + settings.jpegQuality + "\n" : "") +
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"文件名 = 图层名\n" +
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"尺寸 = " + (settings.trim ? "已裁切透明边缘" : "原文档画布尺寸") + "\n\n" +
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"输出目录：\n" + outputFolder.fsName
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);
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} catch (error) {
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if (workDoc !== null) {
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try {
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workDoc.close(SaveOptions.DONOTSAVECHANGES);
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} catch (ignoreClose) {}
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}
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try {
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app.activeDocument = sourceDoc;
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} catch (ignoreActivate) {}
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app.displayDialogs = oldDialogs;
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alert("导出失败：\n" + error.message);
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}
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}());
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