/// <summary>
/// Writes the Grid.Row or Grid.Column attribute as appropriate for this control based on orientation of
/// the panel this control is a member of.
/// </summary>
/// <param name="writer">WpfXmlWriter to use to write the XAML to.</param>
/// <param name="control">Control.</param>
public static void WriteGridAttribute(WpfXmlWriter writer, Control_t control)
{
bool isVertical = ((control as IParentable <StrategyPanel_t>).Parent.Orientation == Orientation_t.Vertical);
writer.WriteAttribute(isVertical ? WpfXmlWriterAttribute.GridRow : WpfXmlWriterAttribute.GridColumn,
control.Index.ToString());
}
/// <summary>
/// Initializes a new WpfControlRenderer.
/// </summary>
/// <param name="writer">WpfXmlWriter to use for writing the output XAML.</param>
/// <param name="sizer">Combo box sizer.</param>
public WpfControlRenderer(WpfXmlWriter writer, WpfComboBoxSizer sizer)
{
_writer = writer;
_comboBoxSizer = sizer;
_comboBoxSizer.Clear();
}
protected virtual void Dispose(bool disposing)
{
if (disposing && _writer != null)
{
_writer.WriteEndTag();
_writer = null;
}
}
private static void WritePanelAttributes(WpfXmlWriter writer, StrategyPanel_t panel)
{
writer.WriteAttribute(WpfXmlWriterAttribute.BorderVisibility,
(panel.Border == Border_t.Line) ? VisibleVisibility : CollapsedVisibility);
writer.WriteAttribute(WpfXmlWriterAttribute.HeaderVisibility,
string.IsNullOrEmpty(panel.Title) ? CollapsedVisibility : VisibleVisibility);
writer.WriteAttribute(WpfXmlWriterAttribute.CollapseButtonVisibility,
(panel.Collapsible == true) ? VisibleVisibility : CollapsedVisibility);
writer.WriteAttribute(WpfXmlWriterAttribute.IsExpanded,
(panel.Collapsible == true && panel.Collapsed == true) ? "False" : "True");
if (!string.IsNullOrEmpty(panel.Title))
{
writer.WriteAttribute(WpfXmlWriterAttribute.Header, panel.Title);
}
}
public static void Render(Strategy_t strategy, XmlWriter writer, WpfComboBoxSizer sizer)
{
if (strategy.StrategyLayout == null)
{
throw ThrowHelper.New <RenderingException>(ExceptionContext, ErrorMessages.NoStrategyLayoutSupplied);
}
StrategyPanel_t rootPanel = strategy.StrategyLayout.StrategyPanel;
if (rootPanel == null)
{
throw ThrowHelper.New <RenderingException>(ExceptionContext, ErrorMessages.NoStrategyPanelsInStrategy);
}
WpfXmlWriter wpfWriter = new WpfXmlWriter(writer);
// TODO: Move this somewhere better
WpfControlRenderer controlRenderer = new WpfControlRenderer(wpfWriter, sizer);
// TODO: Move this elsewhere
CompositionContainer defaultContainer = new CompositionContainer(new TypeCatalog(_defaultRenderers));
if (!string.IsNullOrEmpty(CustomControlRenderer))
{
string applicationDirectory = (from assembly in System.AppDomain.CurrentDomain.GetAssemblies()
where assembly.CodeBase.EndsWith(".exe")
select System.IO.Path.GetDirectoryName(assembly.CodeBase.Replace("file:///", ""))).FirstOrDefault();
string customControlRendererPath = Path.Combine(applicationDirectory, CustomControlRenderer);
AssemblyCatalog overridesCatalog = new AssemblyCatalog(customControlRendererPath);
CompositionContainer aggregateContainer = new CompositionContainer(overridesCatalog, defaultContainer);
aggregateContainer.ComposeParts(controlRenderer);
}
else
{
defaultContainer.ComposeParts(controlRenderer);
}
int depth = 0;
ProcessPanel(rootPanel, wpfWriter, controlRenderer, -1, ref depth);
}
/// <summary>
/// Renders the supplied "labelled control", i.e., control which has a label.
/// </summary>
/// <typeparam name="T">Type of control.</typeparam>
/// <param name="writer">WpfXmlWriter to use to write the XAML.</param>
/// <param name="control">Control to render alongside label.</param>
/// <param name="controlRenderer">Control renderer to use to render the control.</param>
public static void RenderLabelledControl <T>(WpfXmlWriter writer, T control, ControlRenderer <T> controlRenderer) where T : Control_t
{
bool isVertical = ((control as IParentable <StrategyPanel_t>).Parent.Orientation == Orientation_t.Vertical);
// If this is a vertical StrategyPanel, we don't bother with a containing Grid - this provides nice alignment of labels and controls
if (isVertical)
{
RenderControlLabel(writer, control, new GridCoordinate(control.Index, 0));
controlRenderer(control, new GridCoordinate(control.Index, 1));
}
else
{
using (writer.New(WpfXmlWriterTag.Grid))
{
writer.WriteAttribute(WpfXmlWriterAttribute.GridColumn, control.Index.ToString());
using (writer.New(WpfXmlWriterTag.GridColumnDefinitions))
{
for (int n = 0; n < 2; n++)
{
using (writer.New(WpfXmlWriterTag.ColumnDefinition))
writer.WriteAttribute(WpfXmlWriterAttribute.Width, "Auto");
}
}
using (writer.New(WpfXmlWriterTag.GridRowDefinitions))
{
using (writer.New(WpfXmlWriterTag.RowDefinition))
writer.WriteAttribute(WpfXmlWriterAttribute.Height, "Auto");
}
RenderControlLabel(writer, control, StandardGridCoordinates.Label);
controlRenderer(control, StandardGridCoordinates.Control);
}
}
}
private static void RenderControlLabel(WpfXmlWriter writer, Control_t control, GridCoordinate gridCoordinate)
{
string label = control.Label;
string forControl = control.Id;
// Assumes that a control label will always be in the first cell of a 2 x 1 grid.
if (!string.IsNullOrEmpty(label))
{
using (writer.New(WpfXmlWriterTag.Label))
{
writer.WriteAttribute(WpfXmlWriterAttribute.GridColumn, gridCoordinate.Column.ToString());
writer.WriteAttribute(WpfXmlWriterAttribute.GridRow, gridCoordinate.Row.ToString());
if (!string.IsNullOrEmpty(forControl))
{
writer.WriteAttribute(WpfXmlWriterAttribute.Target, string.Format("{{Binding ElementName={0}}}", CleanName(forControl)));
writer.WriteAttribute(WpfXmlWriterAttribute.IsEnabled, string.Format("{{Binding Path=Controls[{0}].Enabled}}", CleanName(forControl)));
writer.WriteAttribute(WpfXmlWriterAttribute.Visibility, string.Format("{{Binding Path=Controls[{0}].Visibility}}", CleanName(forControl)));
}
writer.WriteAttribute(WpfXmlWriterAttribute.Content, label);
}
}
}
public WpfEnclosingTagHelper(WpfXmlWriter writer, string localName, string tag)
{
_writer = writer;
_writer.WriteBeginTag(localName, tag);
}
public WpfEnclosingTagHelper(WpfXmlWriter writer, string prefix, string localName, string ns)
{
_writer = writer;
_writer.WriteBeginTag(prefix, localName, ns);
}
public WpfEnclosingTagHelper(WpfXmlWriter writer, WpfXmlWriterTag tag)
{
_writer = writer;
_writer.WriteBeginTag(tag);
}
private static void ProcessPanel(StrategyPanel_t panel, WpfXmlWriter writer, WpfControlRenderer controlRenderer, int rowOrColumn, ref int depth)
{
depth++;
bool isVertical = (panel.Orientation == Orientation_t.Vertical);
using (writer.New(DefaultNamespaceProvider.Atdl4netNamespace, "StrategyPanelFrame", DefaultNamespaceProvider.Atdl4netNamespaceUri))
{
writer.WriteAttribute(WpfXmlWriterAttribute.Padding, "1");
writer.WriteAttribute(WpfXmlWriterAttribute.Margin, "1");
WritePanelAttributes(writer, panel);
if (rowOrColumn == -1)
{
foreach (KeyValuePair <string, string> ns in controlRenderer.NamespaceProvider.CustomNamespaces)
{
writer.WriteNamespaceAttribute(ns.Key, ns.Value);
}
}
else
{
writer.WriteAttribute((panel as IParentable <StrategyPanel_t>).Parent.Orientation == Orientation_t.Vertical
? WpfXmlWriterAttribute.GridRow
: WpfXmlWriterAttribute.GridColumn,
rowOrColumn.ToString());
}
bool containsControls = (panel.Controls.Count > 0);
// For grids containing a horizontal arrangement of controls, we add an empty column so we can set its width to "*"
int childCount = containsControls
? panel.Controls.Count + (isVertical ? 0 : 1)
: panel.StrategyPanels.Count;
using (writer.New(WpfXmlWriterTag.Grid))
{
if (depth == 1)
{
writer.WriteAttribute(WpfXmlWriterAttribute.DataContext, AtdlDataContext);
}
using (writer.New(WpfXmlWriterTag.GridRowDefinitions))
{
int rowCount = isVertical ? childCount : 1;
for (int n = 0; n < rowCount; n++)
{
using (writer.New(WpfXmlWriterTag.RowDefinition))
writer.WriteAttribute(WpfXmlWriterAttribute.Height, "Auto");
}
}
using (writer.New(WpfXmlWriterTag.GridColumnDefinitions))
{
// Special treatment for vertical panels that contain controls - put in two columns, one for the label and
// one for the control itself.
int columnCount = isVertical ? (containsControls ? 2 : 1) : childCount;
for (int n = 0; n < columnCount; n++)
{
using (writer.New(WpfXmlWriterTag.ColumnDefinition))
{
if (containsControls)
{
writer.WriteAttribute(WpfXmlWriterAttribute.Width, (n < childCount - 1) ? "Auto" : "*");
}
}
}
}
// Note that a StrategyPanel_t can either contain other strategy panels, or controls but NOT BOTH.
if (panel.StrategyPanels != null && panel.StrategyPanels.Count > 0)
{
int thisRowOrColumn = 0;
foreach (StrategyPanel_t childPanel in panel.StrategyPanels)
{
ProcessPanel(childPanel, writer, controlRenderer, thisRowOrColumn, ref depth);
thisRowOrColumn++;
}
}
else
{
ProcessControls(panel, controlRenderer);
// For horizontal strategy panels, put a dummy rectangle in the last column to trick
// WPF to sizing the other columns to their control size.
if (panel.Orientation == Orientation_t.Horizontal)
{
using (writer.New(WpfXmlWriterTag.Rectangle))
{
writer.WriteAttribute(WpfXmlWriterAttribute.GridColumn, panel.Controls.Count.ToString());
}
}
}
}
}
}
