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//
// GotoLineNumberWidget.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (C) 2008 Novell, Inc (http://www.novell.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 Gtk;
using Mono.TextEditor;
namespace MonoDevelop.SourceEditor
{
public partial class GotoLineNumberWidget : Gtk.Bin
{
readonly MonoTextEditor textEditor;
readonly Widget frame;
double vSave, hSave;
DocumentLocation caretSave;
bool cleanExit = false;
void HandleViewTextEditorhandleSizeAllocated (object o, SizeAllocatedArgs args)
{
int newX = textEditor.Allocation.Width - this.Allocation.Width - 8;
var containerChild = ((MonoTextEditor.EditorContainerChild)textEditor [frame]);
if (newX != containerChild.X) {
this.entryLineNumber.WidthRequest = textEditor.Allocation.Width / 4;
containerChild.X = newX;
textEditor.QueueResize ();
}
}
void CloseWidget ()
{
Destroy ();
}
public GotoLineNumberWidget (MonoTextEditor textEditor, Widget frame)
{
this.textEditor = textEditor;
this.frame = frame;
this.Build ();
StoreWidgetState ();
textEditor.Parent.SizeAllocated += HandleViewTextEditorhandleSizeAllocated;
//HACK: GTK rendering issue on Mac, images don't repaint unless we put them in visible eventboxes
if (MonoDevelop.Core.Platform.IsMac) {
foreach (var eb in new [] { eventbox1, eventbox2 }) {
eb.VisibleWindow = true;
eb.ModifyBg (StateType.Normal, new Gdk.Color (230, 230, 230));
}
}
this.closeButton.Clicked += delegate {
RestoreWidgetState ();
CloseWidget ();
};
this.buttonGoToLine.Clicked += delegate {
cleanExit = true;
GotoLine ();
CloseWidget ();
};
foreach (Gtk.Widget child in this.Children) {
child.KeyPressEvent += delegate (object sender, Gtk.KeyPressEventArgs args) {
if (args.Event.Key == Gdk.Key.Escape) {
RestoreWidgetState ();
CloseWidget ();
}
};
}
Gtk.Widget oldWidget = null;
this.FocusChildSet += delegate (object sender, Gtk.FocusChildSetArgs args) {
// only store state when the focus comes from a non child widget
if (args.Widget != null && oldWidget == null)
StoreWidgetState ();
oldWidget = args.Widget;
};
this.entryLineNumber.Changed += delegate {
PreviewLine ();
};
this.entryLineNumber.Activated += delegate {
cleanExit = true;
GotoLine ();
CloseWidget ();
};
}
protected override void OnDestroyed ()
{
base.OnDestroyed ();
textEditor.Parent.SizeAllocated -= HandleViewTextEditorhandleSizeAllocated;
}
void StoreWidgetState ()
{
this.vSave = textEditor.VAdjustment.Value;
this.hSave = textEditor.HAdjustment.Value;
this.caretSave = textEditor.Caret.Location;
}
void RestoreWidgetState ()
{
if (cleanExit)
return;
textEditor.VAdjustment.Value = this.vSave;
textEditor.HAdjustment.Value = this.hSave;
textEditor.Caret.Location = this.caretSave;
}
int TargetLine {
get {
int line;
try {
var lineNumberText = entryLineNumber.Text.Split (',', ':')[0];
line = Int32.Parse (lineNumberText);
} catch (OverflowException) {
line = entryLineNumber.Text.Trim ().StartsWith ("-", StringComparison.Ordinal) ? int.MinValue : int.MaxValue;
}
bool isRelativeJump = entryLineNumber.Text.Trim ().StartsWith ("-", StringComparison.Ordinal) || entryLineNumber.Text.Trim ().StartsWith ("+", StringComparison.Ordinal);
return isRelativeJump ? this.caretSave.Line + line : line;
}
}
int TargetColumn {
get {
int column;
try {
var col = entryLineNumber.Text.Split (',', ':');
if (col.Length != 2)
return 0;
var lineNumberText = col [1];
column = Int32.Parse (lineNumberText);
} catch (OverflowException) {
column = entryLineNumber.Text.Trim ().StartsWith ("-", StringComparison.Ordinal) ? int.MinValue : int.MaxValue;
}
bool isRelativeJump = entryLineNumber.Text.Trim ().StartsWith ("-", StringComparison.Ordinal) || entryLineNumber.Text.Trim ().StartsWith ("+", StringComparison.Ordinal);
return isRelativeJump ? this.caretSave.Column + column : column;
}
}
void GotoLine ()
{
try {
textEditor.Caret.Line = TargetLine;
var col = TargetColumn;
if (col > 0)
textEditor.Caret.Column = col;
textEditor.CenterToCaret ();
} catch (System.Exception) {
}
}
internal static readonly Gdk.Color warningColor = new Gdk.Color (210, 210, 32);
internal static readonly Gdk.Color errorColor = new Gdk.Color (255, 102, 102);
void PreviewLine ()
{
if (String.IsNullOrEmpty (entryLineNumber.Text) || entryLineNumber.Text == "+" || entryLineNumber.Text == "-") {
this.entryLineNumber.ModifyBase (Gtk.StateType.Normal, Style.Base (Gtk.StateType.Normal));
RestoreWidgetState ();
return;
}
try {
int targetLine = TargetLine;
if (targetLine >= textEditor.Document.LineCount || targetLine < 0) {
targetLine = Math.Max (1, Math.Min (textEditor.Document.LineCount, targetLine));
} else {
this.entryLineNumber.ModifyBase (Gtk.StateType.Normal, Style.Base (Gtk.StateType.Normal));
}
textEditor.Caret.Line = targetLine;
textEditor.CenterToCaret ();
} catch (System.Exception) {
this.entryLineNumber.ModifyBase (Gtk.StateType.Normal, errorColor);
}
}
public void Focus ()
{
if (!this.entryLineNumber.IsFocus)
this.entryLineNumber.IsFocus = true;
PreviewLine ();
}
}
}
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