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Viewing changes to Do.Interface.Linux.Docky/src/Docky.Interface/Docky.Interface.Painters/AbstractIntegratedPainter.cs

  • Committer: rugby471 at gmail
  • Date: 2010-10-15 16:08:38 UTC
  • Revision ID: rugby471@gmail.com-20101015160838-z9m3utbf7bxzb5ty
reverted to before docky removal

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Do.Interface.Linux.Docky/src/Docky.Interface/Docky.Interface.Painters/AbstractIntegratedPainter.cs
 
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//  
 
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//  Copyright (C) 2009 GNOME Do
 
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// 
 
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//  This program is free software: you can redistribute it and/or modify
 
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//  it under the terms of the GNU General Public License as published by
 
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//  the Free Software Foundation, either version 3 of the License, or
 
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//  (at your option) any later version.
 
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// 
 
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//  This program is distributed in the hope that it will be useful,
 
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//  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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//  GNU General Public License for more details.
 
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// 
 
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//  You should have received a copy of the GNU General Public License
 
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//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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// 
 
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using System;
 
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using System.Collections.Generic;
 
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using System.Linq;
 
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using Gdk;
 
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using Cairo;
 
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using Do.Interface;
 
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using Docky.Core;
 
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using Docky.Interface;
 
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using Docky.Utilities;
 
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namespace Docky.Interface.Painters
 
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{
 
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        public abstract class AbstractIntegratedPainter : IDockPainter
 
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        {
 
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                protected int BorderSize { get { return 10; } }
 
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                int buffer_height = 0;
 
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                Surface icon_surface, buffer;
 
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                AbstractDockItem dock_item;
 
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                protected abstract int PainterWidth { get; }
 
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                protected virtual bool NeedsRepaint {
 
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                        get { return false; }
 
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                }
 
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                protected abstract void PaintArea (Cairo.Context context, Gdk.Rectangle paintableArea);
 
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                protected virtual bool ReceiveClick (Gdk.Rectangle paintArea, Gdk.Point cursor)
 
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                {
 
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                        return true;
 
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                }
 
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                public virtual void Scrolled (Gdk.ScrollDirection direction)
 
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                {
 
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                }
 
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                #region IDockPainter implementation 
 
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                public event EventHandler HideRequested;
 
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                public event EventHandler<PaintNeededArgs> PaintNeeded;
 
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                public event EventHandler ShowRequested;
 
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                public void Clicked (Gdk.Rectangle dockArea, Gdk.Point cursor)
 
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                {
 
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                        Gdk.Rectangle paintArea = new Gdk.Rectangle (0, 0, Width, dockArea.Height);
 
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                        Gdk.Point paintAreaCursor = new Gdk.Point (cursor.X - dockArea.Left - DockPreferences.FullIconSize - BorderSize,
 
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                                                                   cursor.Y - dockArea.Top);
 
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                        if (!paintArea.Contains (paintAreaCursor) || ReceiveClick (paintArea, paintAreaCursor))
 
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                                OnHideRequested ();
 
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                }
 
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                public virtual bool DoubleBuffer {
 
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                        get { return false; }
 
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                }
 
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                public virtual bool Interruptable {
 
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                        get { return true; }
 
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                }
 
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                public int Width {
 
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                        get {
 
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                                return PainterWidth + DockPreferences.FullIconSize + 2 * BorderSize;
 
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                        }
 
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                }
 
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                public AbstractIntegratedPainter (AbstractDockItem dockItem)
 
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                {
 
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                        dock_item = dockItem;
 
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                        DockPreferences.IconSizeChanged +=HandleIconSizeChanged; 
 
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                        dockItem.UpdateNeeded +=HandleUpdateNeeded; 
 
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                }
 
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                void HandleUpdateNeeded(object sender, UpdateRequestArgs args)
 
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                {
 
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                        if (icon_surface != null)
 
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                                icon_surface.Destroy ();
 
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                        icon_surface = null;
 
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                        OnPaintNeeded (new PaintNeededArgs ());
 
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                }
 
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                void HandleIconSizeChanged()
 
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                {
 
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                        if (icon_surface != null)
 
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                                icon_surface.Destroy ();
 
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                        icon_surface = null;
 
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                }
 
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                public virtual void Interrupt ()
 
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                {
 
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                        OnHideRequested ();
 
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                }
 
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                public void Paint (Cairo.Context cr, Gdk.Rectangle dockArea, Gdk.Point cursor)
 
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                {
 
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                        if (buffer == null || buffer_height != dockArea.Height || NeedsRepaint) {
 
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                                if (buffer != null)
 
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                                        buffer.Destroy ();
 
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                                buffer = cr.Target.CreateSimilar (cr.Target.Content, PainterWidth, dockArea.Height);
 
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                                using (Cairo.Context context = new Cairo.Context (buffer)) {
 
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                                        PaintArea (context, new Gdk.Rectangle (0, 0, PainterWidth, dockArea.Height));
 
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                                }
 
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                                buffer_height = dockArea.Height;
 
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                        }
 
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                        PaintIcon (cr, dockArea);
 
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                        cr.Rectangle (dockArea.X, dockArea.Y, dockArea.Width, dockArea.Height);
 
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                        cr.Clip ();
 
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                        int x = dockArea.X + DockPreferences.FullIconSize + BorderSize;
 
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                        buffer.Show (cr, x, dockArea.Y);
 
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                        cr.ResetClip ();
 
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                }
 
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                #endregion 
 
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                void PaintIcon (Cairo.Context cr, Gdk.Rectangle dockArea)
 
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                {
 
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                        if (icon_surface == null)
 
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                                icon_surface = CreateIconSurface (cr.Target);
 
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                        switch (DockPreferences.Orientation) {
 
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                        case DockOrientation.Top:
 
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                                icon_surface.Show (cr, dockArea.X + BorderSize, dockArea.Y + 5);
 
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                                break;
 
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                        case DockOrientation.Bottom:
 
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                                icon_surface.Show (cr, dockArea.X + BorderSize, dockArea.Y + dockArea.Height - 5 - DockPreferences.FullIconSize);
 
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                                break;
 
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                        }
 
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                }
 
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                protected virtual Surface CreateIconSurface (Surface similar)
 
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                {
 
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                        Surface surface = similar.CreateSimilar (similar.Content,
 
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                                                                   DockPreferences.FullIconSize,
 
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                                                                   DockPreferences.FullIconSize);
 
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                        int actual_size;
 
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                        Surface icon_surface = dock_item.GetIconSurface (similar, DockPreferences.FullIconSize, out actual_size);
 
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                        using (Context context = new Context (surface)) {
 
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                                int offset = (DockPreferences.FullIconSize - actual_size) / 2;
 
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                                icon_surface.Show (context, offset, offset);
 
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                        }
 
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                        return surface;
 
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                }
 
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                protected void OnPaintNeeded (PaintNeededArgs args)
 
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                {
 
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                        if (PaintNeeded != null)
 
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                                PaintNeeded (this, args);
 
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                }
 
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                protected void OnShowRequested ()
 
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                {
 
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                        if (ShowRequested != null)
 
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                                ShowRequested (this, EventArgs.Empty);
 
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                }
 
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                protected void OnHideRequested ()
 
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                {
 
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                        if (HideRequested != null)
 
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                                HideRequested (this, EventArgs.Empty);
 
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                }
 
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                #region IDisposable implementation 
 
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                public virtual void Dispose ()
 
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                {
 
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                }
 
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                #endregion 
 
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        }
 
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}