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position.js
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position.js
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/*
Position.js
Updated: Jan 17 2020, Sara Linsley
----------------
Installation instructions here: https://github.com/saraoswald/Manga-Scripts#how-to-use-scripts-in-indesign
Purpose:
Shifts and scales art that's been placed in an InDesign document
Usage Instructions:
- Run Position.js with a document open
- Specify the scale and shift amounts (in points)
- Specify which pages to transform
- Hit OK
Important Notes:
- This is a really intensive operation on your computer. You might need to do it in batches.
*/
// Feel free to change the default values
var defaults = {
oddPages: {
enabled: true,
scale: false,
scaleFactor: 100,
shiftRight: 0,
shiftDown: 0
},
evenPages: {
enabled: true,
scale: false,
scaleFactor: 100,
shiftRight: 0,
shiftDown: 0
},
pageRange: 1, // 0 = Range, 1 = All
};
var doc = app.activeDocument;
function myDisplayDialog() {
myDialog = app.dialogs.add({ name: "Layout Pages" });
var supportedPageRangeTypes = ["Range", "All"];
var pageRangeControl, pageRangeInput;
var oddPages = {};
var evenPages = {};
with(myDialog) {
with(dialogColumns.add()) {
oddPages.enabledCheckbox = enablingGroups.add({ staticLabel: "Odd Pages", checkedState: defaults.oddPages.enabled });
with(oddPages.enabledCheckbox) {
with(dialogColumns.add()) {
oddPages.scaleCheckbox = checkboxControls.add({ checkedState: defaults.oddPages.scale, staticLabel: "Set Image Scale:" });
staticTexts.add({ staticLabel: "Shift Right:" });
staticTexts.add({ staticLabel: "Shift Down:" });
}
with(dialogColumns.add()) {
oddPages.scaleFactor = percentEditboxes.add({ editValue: defaults.oddPages.scaleFactor });
oddPages.shiftRight = measurementEditboxes.add({ editValue: defaults.oddPages.shiftRight });
oddPages.shiftDown = measurementEditboxes.add({ editValue: defaults.oddPages.shiftDown });
}
}
with(borderPanels.add()) {
staticTexts.add({ staticLabel: "Pages:" });
pageRangeControl = radiobuttonGroups.add();
with(pageRangeControl) {
for (var i = 0; i < supportedPageRangeTypes.length; i++) {
radiobuttonControls.add({ staticLabel: supportedPageRangeTypes[i], checkedState: defaults.pageRange == i, minWidth: 65 });
}
pageRangeInput = textEditboxes.add({ editContents: app.activeWindow.activePage.name });
}
}
}
with(dialogColumns.add()) {
evenPages.enabledCheckbox = enablingGroups.add({ staticLabel: "Even Pages", checkedState: defaults.evenPages.enabled });
with(evenPages.enabledCheckbox) {
with(dialogColumns.add()) {
evenPages.scaleCheckbox = checkboxControls.add({ checkedState: defaults.oddPages.scale, staticLabel: "Set Image Scale:" });
staticTexts.add({ staticLabel: "Shift Right:" });
staticTexts.add({ staticLabel: "Shift Down:" });
}
with(dialogColumns.add()) {
evenPages.scaleFactor = percentEditboxes.add({ editValue: defaults.evenPages.scaleFactor });
evenPages.shiftRight = measurementEditboxes.add({ editValue: defaults.evenPages.shiftRight });
evenPages.shiftDown = measurementEditboxes.add({ editValue: defaults.evenPages.shiftDown });
}
}
}
}
var myReturn = myDialog.show();
if (myReturn == true) {
var needsReview = false;
var selectedPageRange = pageRangeControl.selectedButton;
var pageRange = selectedPageRange === 0 ? getValidRange(pageRangeInput.editContents, oddPages.enabledCheckbox.checkedState, evenPages.enabledCheckbox.checkedState) : doc.pages;
var regex = /\d{3,4}(?=\_?\d?\d?[a-zA-Z]?\.[A-Za-z]{3,4})/;
if (selectedPageRange === 0 && pageRange.length === 0) {
alert('Please enter a valid page range (e.g. "12, 32-33")');
needsReview = true;
}
var transformPage = function(page, data) {
if (data.scaleCheckbox.checkedState) {
scalePage(page, parseInt(data.scaleFactor.editValue));
};
shiftPage(page, parseInt(data.shiftRight.editValue), parseInt(data.shiftDown.editValue));
}
try {
for (var i = 0; i < pageRange.length; i++) {
var page = pageRange[i];
transformPage(page, parseInt(page.name) % 2 > 0 ? oddPages : evenPages);
}
} catch (err) { alert(err) }
if (!needsReview) {
myDialog.destroy();
}
} else {
myDialog.destroy();
}
}
// returns sorted array of numbers based on given range string
// e.g. "11-13, 23" returns [11,12,13,23]
function getValidRange(inp, includeOdd, includeEven) {
var getRange = function(start, stop) {
var res = []
for (var i = start; i <= stop; i++) res.push(i); // who needs polyfill when you have for loops amirite
return res;
}
var getCleanRange = function(inp) {
var nums = inp.split('-');
var x = parseInt(nums[0]),
y = parseInt(nums[1]) || parseInt(nums[0]);
return (nums.length > 0 &&
x && y &&
x <= y
) ? getRange(x, y) : false;
}
var arr = inp.replace(/\s/g, '').split(',');
var resArr = [];
for (var i = 0; i < arr.length; i++) {
var cleanRange = getCleanRange(arr[i]);
for (var j = 0; cleanRange && j < cleanRange.length; j++) {
var pageNum = cleanRange[j];
var pageObj = !!pageNum ? doc.pages.itemByName(pageNum.toString()) : {};
if (pageObj.isValid &&
(includeOdd && pageNum % 2 > 0) || (includeEven && pageNum % 2 == 0)) { // exclude odd/even values based on checkbox values
resArr.push(pageObj);
}
}
}
return resArr.sort();
}
// resets the horizontal and vertical scale of all the graphics on a page to a given factor
function scalePage(page, scaleFactor) {
if (!page.isValid || scaleFactor === NaN) return;
var graphics = page.allGraphics;
for (var i = 0; i < graphics.length; i++) {
var gr = graphics[i];
if (isFramePastMargin(page, gr.parent)) {
gr.absoluteHorizontalScale = scaleFactor;
gr.absoluteVerticalScale = scaleFactor;
}
}
}
function shiftPage(page, right, down) {
if (right === 0 && down === 0) return;
for (var i = 0; i < page.allGraphics.length; i++) {
var gr = page.allGraphics[i];
if (isFramePastMargin(page, gr.parent)) {
gr.move(undefined, [right, down]);
}
}
}
// returns whether or not a given frame is larger than the page
function isFramePastMargin(page, frame) {
var pageDims = getBounds(page.bounds),
frameDims = getBounds(frame.geometricBounds);
return frameDims.height >= pageDims.height &&
frameDims.width >= pageDims.width;
}
// converts an array of coordinates into an object in the format {width, height}
// makes math easier to understand :')
function getBounds(bounds) {
// bounds = x1, y1, x2, y2
return {
width: bounds[2] - bounds[0],
height: bounds[3] - bounds[1]
}
}
function main() {
var usersUnits = app.scriptPreferences.measurementUnit; // so we can revert 'em back later
app.scriptPreferences.measurementUnit = MeasurementUnits.POINTS;
if (doc.allGraphics.length === 0) {
alert('Could not find any linked graphics in this document.');
} else if (app.documents.length != 0) {
myDisplayDialog();
}
app.scriptPreferences.measurementUnit = usersUnits;
};
try {
main();
} catch (err) { alert(err) }