illustrator插件--画板功能开发--旋转画板--js脚本开发

  illustrator是矢量编辑软件，画板是绘制处理的重要容器，开发一个旋转画板功能，源代码如下所示：

app.userInteractionLevel = UserInteractionLevel.DONTDISPLAYALERTS;
var scriptName = "旋转画板和对象";
var scriptVersion = "1.2";
try {
    if (documents.length > 0) {
        var doc = app.activeDocument;
        var currArt = doc.artboards[doc.artboards.getActiveArtboardIndex()];
        var currArtNum = doc.artboards.getActiveArtboardIndex() + 1;
        var lockedItems = new Array();
        var hiddenItems = new Array();
        var dlg = new Window("dialog", scriptName + " ver." + scriptVersion + "", undefined);
        dlg.orientation = "column";
        dlg.alignChildren = ["fill", "fill"];
        var slctTarget = dlg.add("panel", undefined, "旋转范围");
        slctTarget.orientation = "column";
        slctTarget.alignChildren = "left";
        slctTarget.margins = 20;
        var currArtRadio = slctTarget.add("radiobutton", undefined, "当前画板 #" + currArtNum);
        var allArtRadio = slctTarget.add("radiobutton", undefined, "所有画板 " + doc.artboards.length + " Artboards");
        currArtRadio.value = true;
        var slctAngle = dlg.add("panel", undefined, "旋转角度:");
        slctAngle.orientation = "row";
        slctAngle.alignChildren = ["fill", "fill"];
        slctAngle.margins = 20;
        var cwAngle = slctAngle.add("radiobutton", undefined, "顺时针90度");
        var ccwAngle = slctAngle.add("radiobutton", undefined, "逆时针90度");
        cwAngle.value = true;
        var btns = dlg.add("group");
        btns.alignChildren = ["fill", "fill"];
        btns.margins = [0, 10, 0, 0];
        var cancel = btns.add("button", undefined, "取消", {
            name: "cancel"
        });
        cancel.helpTip = "Press Esc to Close";
        cancel.onClick = function() {
            dlg.close();
        };
        var ok = btns.add("button", undefined, "确定", {
            name: "ok"
        });
        ok.helpTip = "Press Enter to Run";
        ok.active = true;
        ok.onClick = okClick;
        selection = null;
        app.redraw();
        dlg.center();
        dlg.show();

        function okClick() {
            saveItemsState();
            if (currArtRadio.value == true) {
                rotateArt(currArt);
            } else {
                for (var i = 0; i < doc.artboards.length; i += 1) {
                    doc.artboards.setActiveArtboardIndex(i);
                    rotateArt(doc.artboards[i]);
                }
            }
            restoreItemsState();
            dlg.close();
        }
    } else {
        throw new Error(scriptName + "\nPlease open a document before running this script.")
    }
} catch (e) {
    showError(e);
}

function saveItemsState() {
    for (var i = 0; i < doc.pageItems.length; i += 1) {
        var currItem = doc.pageItems[i];
        if (currItem.locked == true) {
            lockedItems.push(i);
            currItem.locked = false;
        }
        if (currItem.hidden == true) {
            hiddenItems.push(i);
            currItem.hidden = false;
        }
    }
}

function restoreItemsState() {
    for (var i = 0; i < lockedItems.length; i += 1) {
        var index = lockedItems[i];
        doc.pageItems[index].locked = true;
    }
    for (var j = 0; j < hiddenItems.length; j += 1) {
        var index = hiddenItems[j];
        doc.pageItems[index].hidden = true;
    }
}

function rotateArt(board) {
    app.coordinateSystem = CoordinateSystem.ARTBOARDCOORDINATESYSTEM;
    var artRect = [].concat(board.artboardRect);
    var artWidth = artRect[2] - artRect[0];
    var artHeight = -(artRect[3] - artRect[1]);
    deselect();
    doc.selectObjectsOnActiveArtboard();
    var newArtRect = [(artRect[0] + (artWidth / 2)) - (artHeight / 2), (artRect[1] - (artHeight / 2)) + (artWidth / 2), (artRect[2] - (artWidth / 2)) + (artHeight / 2), (artRect[3] + (artHeight / 2)) - (artWidth / 2)];
    for (var k = 0; k < selection.length; k += 1) {
        var bnds = selection[k].position;
        var __width = selection[k].width;
        var __height = selection[k].height;
        var top = bnds[1] - artRect[1];
        var left = bnds[0] - artRect[0];
        if (cwAngle.value == true) {
            selection[k].rotate(-90, true, true, true, true, Transformation.CENTER);
            selection[k].position = [(newArtRect[2] - __height) + top, newArtRect[1] - left];
        } else {
            selection[k].rotate(90, true, true, true, true, Transformation.CENTER);
            selection[k].position = [newArtRect[0] - top, newArtRect[3] + left + __width];
        }
    }
    deselect();
    board.artboardRect = newArtRect;
}

function deselect() {
    selection = null;
}

function showError(err) {
    if (confirm(scriptName + ": an unknown error has occurred.\n" + "Would you like to see more information?", true, "Unknown Error")) {
        alert(err + ": on line " + err.line, "Script Error", true);
    }
}

  合理的脚本代码可以有效的提高工作效率，减少重复劳动。

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