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//
// TextVisualizer.cs
//
// Authors: Lluis Sanchez Gual <lluis@novell.com>
// Jeffrey Stedfast <jeff@xamarin.com>
//
// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
// Copyright (c) 2013 Xamarin Inc. (http://www.xamarin.com)
//
// 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.Text;
using Gtk;
using Mono.Debugging.Client;
using MonoDevelop.Core;
namespace MonoDevelop.Debugger.Visualizer
{
public class TextVisualizer: ValueVisualizer
{
const int CHUNK_SIZE = 1024;
RawValueString rawString;
RawValueArray rawArray;
TextView textView;
uint idle_id;
int length;
int offset;
public TextVisualizer ()
{
}
public override string Name {
get { return GettextCatalog.GetString ("Text"); }
}
public override bool CanVisualize (ObjectValue val)
{
switch (val.TypeName) {
case "char[]": return true;
case "string": return true;
default: return false;
}
}
public override bool IsDefaultVisualizer (ObjectValue val)
{
return true;
}
bool GetNextCharArrayChunk ()
{
int amount = Math.Min (length - offset, CHUNK_SIZE);
var chunk = rawArray.GetValues (offset, amount) as char[];
var iter = textView.Buffer.EndIter;
textView.Buffer.Insert (ref iter, new string (chunk));
offset += amount;
if (offset < length)
return true;
idle_id = 0;
// Remove this idle callback
return false;
}
bool GetNextStringChunk ()
{
int amount = Math.Min (length - offset, CHUNK_SIZE);
string chunk = rawString.Substring (offset, amount);
TextIter iter = textView.Buffer.EndIter;
textView.Buffer.Insert (ref iter, chunk);
offset += amount;
if (offset < length)
return true;
idle_id = 0;
// Remove this idle callback
return false;
}
void PopulateTextView (ObjectValue value)
{
var ops = DebuggingService.DebuggerSession.EvaluationOptions.Clone ();
ops.AllowTargetInvoke = true;
ops.ChunkRawStrings = true;
if (value.TypeName == "string") {
rawString = value.GetRawValue (ops) as RawValueString;
length = rawString.Length;
offset = 0;
if (length > 0) {
idle_id = GLib.Idle.Add (GetNextStringChunk);
textView.Destroyed += delegate {
if (idle_id != 0) {
GLib.Source.Remove (idle_id);
idle_id = 0;
}
};
}
} else if (value.TypeName == "char[]") {
rawArray = value.GetRawValue (ops) as RawValueArray;
length = rawArray.Length;
offset = 0;
if (length > 0) {
idle_id = GLib.Idle.Add (GetNextCharArrayChunk);
textView.Destroyed += delegate {
if (idle_id != 0) {
GLib.Source.Remove (idle_id);
idle_id = 0;
}
};
}
}
}
public override Widget GetVisualizerWidget (ObjectValue val)
{
textView = new TextView () { WrapMode = WrapMode.Char };
var scrolled = new ScrolledWindow () {
HscrollbarPolicy = PolicyType.Automatic,
VscrollbarPolicy = PolicyType.Automatic,
ShadowType = ShadowType.In
};
scrolled.Add (textView);
var check = new CheckButton (GettextCatalog.GetString ("Wrap text"));
check.Active = true;
check.Toggled += delegate {
if (check.Active)
textView.WrapMode = WrapMode.WordChar;
else
textView.WrapMode = WrapMode.None;
};
var box = new VBox (false, 6);
box.PackStart (scrolled, true, true, 0);
box.PackStart (check, false, false, 0);
box.ShowAll ();
PopulateTextView (val);
return box;
}
public override bool StoreValue (ObjectValue val)
{
switch (val.TypeName) {
case "char[]":
val.SetRawValue (textView.Buffer.Text.ToCharArray ());
return true;
case "string":
val.SetRawValue (textView.Buffer.Text);
return true;
default:
return false;
}
}
public override bool CanEdit (ObjectValue val)
{
switch (val.TypeName) {
case "char[]": return true;
case "string": return true;
default: return false;
}
}
}
}
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