1 files changed, 153 insertions, 0 deletions
diff --git a/src/DocGen/CppGen.ts b/src/DocGen/CppGen.ts
new file mode 100644
index 0000000..1dc70f7
--- /dev/null
+++ b/src/DocGen/CppGen.ts
@@ -0,0 +1,153 @@
+import { Position, Range, Selection, TextEditor, TextLine, WorkspaceEdit } from "vscode";
+import { DoxygenCommands, IDocGen } from "./DocGen";
+
+export default class CppGen implements IDocGen {
+    private lineStart: string;
+    private endComment: string;
+    private commandIndicator: string;
+    private spaceAfterCommand: string;
+    private activeEditor: TextEditor;
+    private position: Position;
+    private comment: string;
+    private retVals: string[];
+    private params: string[];
+
+    /**
+     * @param  {TextEditor} actEdit Active editor window
+     * @param  {Position} cursorPosition Where the cursor of the user currently is
+     * @param  {string[]} param The parameter names of the method extracted by the parser
+     * @param  {string[]} returnVals The return values extracted by the parser
+     */
+    public constructor(actEdit: TextEditor, cursorPosition: Position, param: string[], returnVals: string[]) {
+        this.activeEditor = actEdit;
+        this.position = cursorPosition;
+        this.comment = "\n"; // Add the new line after the comment indicator
+        this.params = param;
+        this.retVals = returnVals;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public GenerateDoc() {
+        this.readConfig();
+        this.generateComment();
+
+        const oldPos: Position = this.position;
+
+        const active: Position = this.activeEditor.selection.active;
+        const anchor: Position = new Position(active.line + 1, active.character); // Start at the next line
+        const replaceSelection = new Selection(anchor, active);
+        this.activeEditor.edit((editBuilder) => {
+            editBuilder.replace(replaceSelection, this.comment); // Insert the comment
+        });
+
+        // Set cursor after brief command
+        this.setCursor(oldPos.line + 3, oldPos.character);
+        const newSelectActive = new Position(oldPos.line + 3, oldPos.character + DoxygenCommands.detailed.length);
+        const newSelectPos = new Position(oldPos.line + 3, oldPos.character);
+        this.activeEditor.selection = new Selection(newSelectPos, newSelectActive);
+    }
+
+    /***************************************************************************
+                                    Implementation
+     ***************************************************************************/
+
+    private readConfig() {
+        this.lineStart = " * "; // TODO: make this customizable
+        this.endComment = "*/"; // TODO: make this customizable
+        this.commandIndicator = "@"; // TODO: make this customizable
+        this.spaceAfterCommand = " "; // TODO: make this customizable
+    }
+
+    private indentLine(commentLine: string): string {
+        const line: TextLine = this.activeEditor.document.lineAt(this.activeEditor.selection.start.line);
+        const lineTxt: string = line.text;
+        let stringToIndent: string = "";
+        // Find indentation from previous line
+        for (let i = 0; i < line.firstNonWhitespaceCharacterIndex; i++) {
+            if (lineTxt.charAt(i) === "\t") {
+                stringToIndent = stringToIndent + "\t";
+            } else if (lineTxt.charAt(i) === " ") {
+                stringToIndent = stringToIndent + " ";
+            }
+        }
+        const textToInsert = stringToIndent + commentLine;
+        return textToInsert;
+    }
+
+    private generateBrief() {
+        let line: string = "";
+        line += this.lineStart;
+        line += this.commandIndicator;
+        line += DoxygenCommands.brief;
+        line += this.spaceAfterCommand;
+        this.comment += this.indentLine(line);
+    }
+
+    private generateDetailed() {
+        let line: string = "";
+        line += this.lineStart;
+        line += "\n";
+        this.comment += this.indentLine(line);
+        line = this.lineStart;
+        line += DoxygenCommands.detailed + "\n";
+        this.comment += this.indentLine(line);
+        line = this.lineStart;
+        this.comment += this.indentLine(line);
+    }
+
+    private generateParams() {
+        let line: string = "";
+
+        this.params.forEach((element: string) => {
+            line = this.lineStart;
+            line += this.commandIndicator;
+            line += DoxygenCommands.param + " "; // TODO: Make this customizable
+            line += element + "\n";
+            this.comment += this.indentLine(line);
+        });
+    }
+
+    private generateReturn() {
+        let line: string = "";
+
+        this.retVals.forEach((element: string) => {
+            line = this.lineStart;
+            line += this.commandIndicator;
+            line += DoxygenCommands.return + " "; // TODO: Make this customizable
+            line += element + "\n";
+            this.comment += this.indentLine(line);
+        });
+    }
+
+    private generateEnd() {
+        let line: string = " "; // TODO: Make this customizable
+        line += this.endComment;
+        this.comment += this.indentLine(line);
+    }
+
+    private generateComment() {
+        this.generateBrief();
+        this.comment += "\n";
+        this.generateDetailed();
+        this.comment += "\n";
+        if (this.params.length !== 0) { // Only if we have parameters
+            this.generateParams();
+        }
+        if (this.retVals.length !== 0) { // Only if we have return values
+            if (this.params.length !== 0) {
+                const line: string = this.lineStart + "\n";
+                this.comment += this.indentLine(line);
+            }
+            this.generateReturn();
+        }
+        this.generateEnd();
+    }
+
+    private setCursor(line: number, character: number) {
+        const indentLen: number = this.indentLine("").length;
+        const move: Selection = new Selection(line, character, line, character);
+        this.activeEditor.selection = move;
+    }
+}