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// Margin.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2007 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 System.Collections.Generic;
namespace Mono.TextEditor
{
public abstract class Margin : IDisposable
{
public abstract double Width {
get;
}
public bool IsVisible { get; set; }
// set by the text editor
public virtual double XOffset {
get;
internal set;
}
protected Gdk.Cursor cursor = null;
public Gdk.Cursor MarginCursor {
get {
return cursor;
}
}
List<MarginDrawer> marginDrawer = new List<MarginDrawer> ();
public IEnumerable<MarginDrawer> MarginDrawer {
get {
return marginDrawer;
}
}
public IBackgroundRenderer BackgroundRenderer {
get;
set;
}
protected Margin ()
{
IsVisible = true;
}
public void AddDrawer (MarginDrawer drawer)
{
marginDrawer.Add (drawer);
}
public void RemoveDrawer (MarginDrawer drawer)
{
marginDrawer.Remove (drawer);
}
internal protected abstract void Draw (Cairo.Context cr, Cairo.Rectangle area, DocumentLine line, int lineNumber, double x, double y, double lineHeight);
internal protected virtual void OptionsChanged ()
{
}
internal protected virtual void MousePressed (MarginMouseEventArgs args)
{
if (ButtonPressed != null)
ButtonPressed (this, args);
}
internal protected virtual void MouseReleased (MarginMouseEventArgs args)
{
if (ButtonReleased != null)
ButtonReleased (this, args);
}
internal protected virtual void MouseHover (MarginMouseEventArgs args)
{
if (MouseMoved != null)
MouseMoved (this, args);
}
internal protected virtual void MouseLeft ()
{
if (MouseLeave != null)
MouseLeave (this, EventArgs.Empty);
}
public virtual void Dispose ()
{
cursor = cursor.Kill ();
}
public event EventHandler<MarginMouseEventArgs> ButtonPressed;
public event EventHandler<MarginMouseEventArgs> ButtonReleased;
public event EventHandler<MarginMouseEventArgs> MouseMoved;
public event EventHandler MouseLeave;
}
public class MarginMouseEventArgs : EventArgs
{
public double X {
get;
private set;
}
public double Y {
get;
private set;
}
/// <summary>
/// The raw GDK event. May be null if the event was synthesized.
/// </summary>
public Gdk.Event RawEvent { get; private set; }
public Gdk.EventType Type {
get;
private set;
}
public Gdk.ModifierType ModifierState {
get;
private set;
}
public uint Button {
get;
private set;
}
public bool TriggersContextMenu ()
{
var evt = RawEvent as Gdk.EventButton;
return evt != null && evt.TriggersContextMenu ();
}
int lineNumber = -2; // -2 means that line number has not yet been calculated
public int LineNumber {
get {
if (lineNumber == -2) {
lineNumber = Editor.YToLine (Editor.VAdjustment.Value + Y);
if (lineNumber > Editor.Document.LineCount)
lineNumber = 0;
}
return lineNumber;
}
}
DocumentLine line;
public DocumentLine LineSegment {
get {
if (line == null) {
if (LineNumber < DocumentLocation.MinLine)
return null;
line = Editor.Document.GetLine (lineNumber);
}
return line;
}
}
public TextEditor Editor {
get;
private set;
}
public MarginMouseEventArgs (TextEditor editor, Gdk.Event raw, uint button, double x, double y, Gdk.ModifierType modifierState)
: this (editor, raw.Type, button, x, y, modifierState)
{
this.RawEvent = raw;
}
public MarginMouseEventArgs (TextEditor editor, Gdk.EventType type, uint button, double x, double y, Gdk.ModifierType modifierState)
{
this.Editor = editor;
this.Type = type;
this.Button = button;
this.X = x;
this.Y = y;
this.ModifierState = modifierState;
}
}
}
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