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//
// DataProvider.cs
//
// Authors:
// Levi Bard <taktaktaktaktaktaktaktaktaktak@gmail.com>
//
// Copyright (C) 2008 Levi Bard
// Based on CBinding by Marcos David Marin Amador <MarcosMarin@gmail.com>
//
// This source code is licenced under The MIT License:
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading;
using MonoDevelop.Core;
using MonoDevelop.Ide.Gui;
using MonoDevelop.Ide.CodeCompletion;
using MonoDevelop.ValaBinding.Parser;
using MonoDevelop.ValaBinding.Parser.Afrodite;
namespace MonoDevelop.ValaBinding
{
public class ParameterDataProvider : IParameterDataProvider
{
Document document;
private IList<Symbol> functions;
private string functionName;
public ParameterDataProvider (Document document, ProjectInformation info, string functionName)
{
this.document = document;
this.functionName = functionName;
functions = new List<Symbol> ();
Symbol function = info.GetFunction (functionName, document.FileName, document.Editor.Caret.Line + 1, document.Editor.Caret.Column + 1);
if (null != function){ functions.Add (function); }
}// member function constructor
/// <summary>
/// Create a ParameterDataProvider for a constructor
/// </summary>
/// <param name="constructorOverload">
/// A <see cref="System.String"/>: The named of the pertinent constructor overload
/// </param>
public ParameterDataProvider (Document document, ProjectInformation info, string typename, string constructorOverload)
{
this.functionName = constructorOverload;
this.document = document;
List<Symbol> myfunctions = info.GetConstructorsForType (typename, document.FileName, document.Editor.Caret.Line + 1, document.Editor.Caret.Column + 1, null); // bottleneck
if (1 < myfunctions.Count) {
foreach (Symbol function in myfunctions) {
if (functionName.Equals (function.Name, StringComparison.Ordinal)) {
functions = new List<Symbol> () {function};
return;
}
}
}
functions = myfunctions;
}// constructor constructor
/// <summary>
/// The number of overloads for this method
/// </summary>
public int OverloadCount {
get { return functions.Count; }
}
/// <summary>
/// Get the index of the parameter where the cursor is currently positioned.
/// </summary>
/// <param name="ctx">
/// A <see cref="CodeCompletionContext"/>
/// </param>
/// <returns>
/// A <see cref="System.Int32"/>: The index of the parameter,
/// 0 for no parameter entered,
/// -1 for outside the list
/// </returns>
public int GetCurrentParameterIndex (ICompletionWidget widget, CodeCompletionContext ctx)
{
int cursor = document.Editor.Caret.Offset;
int i = ctx.TriggerOffset;
if (i > cursor)
return -1;
else if (i == cursor)
return 1;
int parameterIndex = 1;
while (i++ < cursor) {
char ch = document.Editor.GetCharAt (i-1);
if (ch == ',')
parameterIndex++;
else if (ch == ')')
return -1;
}
return parameterIndex;
}
/// <summary>
/// Get the markup to use to represent the specified method overload
/// in the parameter information window.
/// </summary>
public string GetMethodMarkup (int overload, string[] parameterMarkup, int currentParameter)
{
string paramTxt = string.Join (", ", parameterMarkup);
Symbol function = functions[overload];
int len = function.FullyQualifiedName.LastIndexOf (".");
string prename = null;
if (len > 0)
prename = function.FullyQualifiedName.Substring (0, len + 1);
// string cons = string.Empty;
// if (function.IsConst)
// cons = " const";
return string.Format ("{2} {3}<b>{0}</b>({1})", GLib.Markup.EscapeText (function.Name),
paramTxt,
GLib.Markup.EscapeText (function.ReturnType.TypeName),
GLib.Markup.EscapeText (prename));
// return prename + "<b>" + function.Name + "</b>" + " (" + paramTxt + ")" + cons;
}
/// <summary>
/// Get the text to use to represent the specified parameter
/// </summary>
public string GetParameterMarkup (int overload, int paramIndex)
{
Symbol function = functions[overload];
if (null != function && null != function.Parameters[paramIndex]) {
string name = function.Parameters[paramIndex].Name;
string type = function.Parameters[paramIndex].TypeName;
return GLib.Markup.EscapeText (string.Format ("{1} {0}", name, type));
}
return string.Empty;
}
/// <summary>
/// Get the number of parameters of the specified method
/// </summary>
public int GetParameterCount (int overload)
{
if (null != functions && null != functions[overload] && null != functions[overload].Parameters) {
return functions[overload].Parameters.Count;
}
return 0;
}
}
/// <summary>
/// Data for Vala completion
/// </summary>
internal class CompletionData : MonoDevelop.Ide.CodeCompletion.CompletionData
{
private string image;
private string text;
private string description;
private string completion_string;
public CompletionData (Symbol item)
{
this.text = item.Name;
this.completion_string = item.Name;
this.description = item.DisplayText;
this.image = item.Icon;
DisplayFlags = DisplayFlags.None;
CompletionCategory = new ValaCompletionCategory (text, image);
}
public override IconId Icon {
get { return image; }
}
public override string DisplayText {
get { return text; }
}
public override string Description {
get { return description; }
}
public override string CompletionText {
get { return completion_string; }
}
}
internal class ValaCompletionDataList: CompletionDataList, IMutableCompletionDataList
{
public ValaCompletionDataList (): base ()
{
IsChanging = true;
Add (string.Empty);
}
internal virtual void AddRange (IEnumerable<CompletionData> vals)
{
foreach (CompletionData item in vals) {
Add (item);
}
}
#region IMutableCompletionDataList implementation
public event EventHandler Changed;
public event EventHandler Changing;
public bool IsChanging {
get { return isChanging; }
set {
isChanging = value;
if (value){ OnChanging (this, null); }
else{ OnChanged (this, null); }
}
}
private bool isChanging;
#endregion
protected virtual void OnChanging (object sender, EventArgs args)
{
if (null != Changing) {
Changing (sender, args);
}
}
protected virtual void OnChanged (object sender, EventArgs args)
{
if (null != Changed) {
Changed (sender, args);
}
}
public void Dispose ()
{
}
}// ValaCompletionDataList
internal class ValaCompletionCategory: CompletionCategory
{
public ValaCompletionCategory (string text, string image): base (text, image)
{
}
public override int CompareTo (CompletionCategory other)
{
return DisplayText.CompareTo (other.DisplayText);
}
}
}
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