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//
// CellUtil.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
//
// Copyright (c) 2011 Xamarin Inc
//
// 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;
using AppKit;
using CoreGraphics;
using Xwt.Backends;
namespace Xwt.Mac
{
static class CellUtil
{
public static CompositeCell CreateCellView (ApplicationContext context, ICellSource source, ICollection<CellView> cells, int column)
{
CompositeCell c = new CompositeCell (context, source);
foreach (var cell in cells)
c.AddCell ((ICellRenderer) CreateCellView (source, cell, column));
return c;
}
public static void UpdateCellView (CompositeCell cellView, ICellSource source, ICollection<CellView> cells, int column)
{
cellView.ClearCells ();
foreach (var cell in cells)
cellView.AddCell ((ICellRenderer) CreateCellView (source, cell, column));
}
static NSView CreateCellView (ICellSource source, CellView cell, int column)
{
ICellRenderer cr = null;
if (cell is ITextCellViewFrontend)
cr = new TextTableCell ();
else if (cell is IImageCellViewFrontend)
cr = new ImageTableCell ();
else if (cell is ICanvasCellViewFrontend)
cr = new CanvasTableCell ();
else if (cell is ICheckBoxCellViewFrontend)
cr = new CheckBoxTableCell ();
else if (cell is IRadioButtonCellViewFrontend)
cr = new RadioButtonTableCell ();
else
throw new NotImplementedException ();
ICellViewFrontend fr = cell;
CellViewBackend backend = null;
try {
//FIXME: although the cell views are based on XwtComponent, they don't implement
// the dynamic registration based backend creation and there is no way to
// identify whether the frontend has already a valid backend.
backend = cell.GetBackend () as CellViewBackend;
} catch (InvalidOperationException) { }
if (backend == null) {
cr.Backend = new CellViewBackend (source.TableView, column);
fr.AttachBackend ((source as ViewBackend).Frontend, cr.Backend);
} else
cr.Backend = backend;
return (NSView)cr;
}
public static bool HandleMouseDown (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.ButtonPressed)) {
CGPoint p = cell.CellView.ConvertPointFromEvent (theEvent);
if (cell.CellView.Bounds.Contains (p)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
var offset = cell.Backend.CellBounds.Location;
ButtonEventArgs args = new ButtonEventArgs {
X = p.X + offset.X,
Y = p.Y + offset.Y,
Button = theEvent.GetPointerButton(),
MultiplePress = (int)theEvent.ClickCount
};
cell.Backend.Context.InvokeUserCode (() => cell.Backend.EventSink.OnButtonPressed (args));
return args.Handled;
}
}
return false;
}
public static bool HandleMouseUp (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.ButtonReleased)) {
CGPoint p = cell.CellView.ConvertPointFromEvent (theEvent);
if (cell.CellView.Bounds.Contains (p)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
var offset = cell.Backend.CellBounds.Location;
ButtonEventArgs args = new ButtonEventArgs {
X = p.X + offset.X,
Y = p.Y + offset.Y,
Button = theEvent.GetPointerButton (),
MultiplePress = (int)theEvent.ClickCount
};
cell.Backend.Context.InvokeUserCode (() => cell.Backend.EventSink.OnButtonReleased (args));
return args.Handled;
}
}
return false;
}
public static void HandleMouseEntered (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.MouseEntered)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
cell.Backend.Context.InvokeUserCode (cell.Backend.EventSink.OnMouseEntered);
}
}
public static void HandleMouseExited (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.MouseExited)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
cell.Backend.Context.InvokeUserCode (cell.Backend.EventSink.OnMouseExited);
}
}
public static bool HandleMouseMoved (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.MouseMoved)) {
CGPoint p = cell.CellView.ConvertPointFromEvent (theEvent);
if (cell.CellView.Bounds.Contains (p)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
var offset = cell.Backend.CellBounds.Location;
MouseMovedEventArgs args = new MouseMovedEventArgs ((long)TimeSpan.FromSeconds (theEvent.Timestamp).TotalMilliseconds, p.X + offset.X, p.Y + offset.Y);
cell.Backend.Context.InvokeUserCode (() => cell.Backend.EventSink.OnMouseMoved (args));
return args.Handled;
}
}
return false;
}
public static bool HandleKeyDown (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.KeyPressed)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
var keyArgs = theEvent.ToXwtKeyEventArgs ();
cell.Backend.Context.InvokeUserCode (() => cell.Backend.EventSink.OnKeyPressed (keyArgs));
return keyArgs.Handled;
}
return false;
}
public static bool HandleKeyUp (this ICellRenderer cell, NSEvent theEvent)
{
if (cell.Backend.GetIsEventEnabled (WidgetEvent.KeyReleased)) {
cell.Backend.Load (cell);
cell.CellContainer.SetCurrentEventRow ();
var keyArgs = theEvent.ToXwtKeyEventArgs ();
cell.Backend.Context.InvokeUserCode (() => cell.Backend.EventSink.OnKeyReleased (keyArgs));
return keyArgs.Handled;
}
return false;
}
}
}
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