/// <summary>
/// Layout the items in the group. Returns the position the next group should start in.
/// </summary>
/// <param name="layoutEngine">The layout engine to use.</param>
/// <param name="itemComparer">The item comparer to use, can be null.</param>
public void layout(ButtonGridLayout layoutEngine, IComparer <ButtonGridItem> itemComparer)
{
if (items.Count > 0)
{
if (grid.ShowGroupCaptions)
{
layoutEngine.alignCaption(caption);
}
IEnumerable <ButtonGridItem> sortedItems = items;
if (itemComparer != null)
{
sortedItems = items.OrderBy(i => i, itemComparer);
}
foreach (ButtonGridItem item in sortedItems)
{
layoutEngine.alignItem(item);
}
layoutEngine.finishGroupLayout();
}
}
public SingleSelectButtonGrid(ScrollView scrollView, ButtonGridLayout layoutEngine, IComparer <ButtonGridItem> itemComparer)
: base(scrollView, null, layoutEngine, itemComparer)
{
_workaroundSetSelectionStrategy(singleSelection);
}
public SingleSelectButtonGrid(ScrollView scrollView, ButtonGridLayout layoutEngine)
: this(scrollView, layoutEngine, null)
{
}
public NoSelectButtonGrid(ScrollView scrollView, ButtonGridLayout layoutEngine, IComparer <ButtonGridItem> itemComparer)
: base(scrollView, new NoSelectionStrategy(), layoutEngine, itemComparer)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="scrollView">The scroll view host.</param>
/// <param name="selectionStrategy">The selection strategy to use.</param>
/// <param name="layoutEngine">The Layout to use.</param>
/// <param name="itemComparer">A comparison instance for items.</param>
public ButtonGrid(ScrollView scrollView, ButtonGridSelectionStrategy selectionStrategy, ButtonGridLayout layoutEngine, IComparer <ButtonGridItem> itemComparer)
: this(scrollView, selectionStrategy, layoutEngine, itemComparer, CreateDefaultCaptionFactory(scrollView))
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="scrollView">The scroll view host.</param>
/// <param name="selectionStrategy">The selection strategy to use.</param>
/// <param name="layoutEngine">The Layout to use.</param>
public ButtonGrid(ScrollView scrollView, ButtonGridSelectionStrategy selectionStrategy, ButtonGridLayout layoutEngine)
: this(scrollView, selectionStrategy, layoutEngine, null, CreateDefaultCaptionFactory(scrollView))
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="scrollView">The scroll view host.</param>
/// <param name="selectionStrategy">The selection strategy to use.</param>
/// <param name="layoutEngine">The Layout to use.</param>
/// <param name="itemComparer">A comparison instance.</param>
/// <param name="captionFactory">The factory to use to make captions.</param>
public ButtonGrid(ScrollView scrollView, ButtonGridSelectionStrategy selectionStrategy, ButtonGridLayout layoutEngine, IComparer <ButtonGridItem> itemComparer, ButtonGridCaptionFactory captionFactory)
{
this.selectionStrategy = selectionStrategy;
NonEmptyGroupCount = 0;
String read;
bool boolValue;
int intValue;
SuppressLayout = false;
this.scrollView = scrollView;
scrollView.CanvasPositionChanged += scrollView_CanvasPositionChanged;
this.itemComparer = itemComparer;
this.layoutEngine = layoutEngine;
//Try to get properties from the widget itself.
read = scrollView.getUserString("ItemHeight");
if (read != null && NumberParser.TryParse(read, out intValue))
{
ItemHeight = ScaleHelper.Scaled(intValue);
}
else
{
ItemHeight = ScaleHelper.Scaled(122);
}
read = scrollView.getUserString("ItemWidth");
if (read != null && NumberParser.TryParse(read, out intValue))
{
ItemWidth = ScaleHelper.Scaled(intValue);
}
else
{
ItemWidth = ScaleHelper.Scaled(122);
}
ButtonSkin = scrollView.getUserString("ButtonSkin");
if (ButtonSkin == null || ButtonSkin == String.Empty)
{
ButtonSkin = "ButtonGridButton";
}
read = scrollView.getUserString("ShowGroupCaptions");
if (read != null && bool.TryParse(read, out boolValue))
{
ShowGroupCaptions = boolValue;
}
else
{
ShowGroupCaptions = true;
}
read = scrollView.getUserString("ItemPaddingX");
if (read != null && NumberParser.TryParse(read, out intValue))
{
layoutEngine.ItemPaddingX = ScaleHelper.Scaled(intValue);
}
read = scrollView.getUserString("ItemPaddingY");
if (read != null && NumberParser.TryParse(read, out intValue))
{
layoutEngine.ItemPaddingY = ScaleHelper.Scaled(intValue);
}
read = scrollView.getUserString("GroupPaddingY");
if (read != null && NumberParser.TryParse(read, out intValue))
{
layoutEngine.GroupPaddingY = ScaleHelper.Scaled(intValue);
}
read = scrollView.getUserString("Center");
if (read != null && bool.TryParse(read, out boolValue))
{
layoutEngine.Center = boolValue;
}
this.CaptionFactory = captionFactory;
}
public HashSetMultiSelectButtonGrid(ScrollView scrollView, ButtonGridLayout layoutEngine)
: this(scrollView, layoutEngine, null)
{
}
