private void OnEquationFormatRequested(object sender, MathRichEditBoxFormatRequest e)
{
if (!string.IsNullOrEmpty(e.OriginalText))
{
e.FormattedText = GraphingControl.FormatMathML(e.OriginalText);
}
}
private void GraphMenuFlyoutItem_Click(object sender, RoutedEventArgs e)
{
var dataPackage = new DataPackage();
dataPackage.RequestedOperation = DataPackageOperation.Copy;
var bitmapStream = GraphingControl.GetGraphBitmapStream();
dataPackage.SetBitmap(bitmapStream);
Clipboard.SetContent(dataPackage);
}
private void OnEquationKeyGraphFeaturesRequested(object sender, EquationViewModel equationViewModel)
{
ViewModel.SetSelectedEquation(equationViewModel);
if (equationViewModel != null)
{
var keyGraphFeatureInfo = GraphingControl.AnalyzeEquation(equationViewModel.GraphEquation);
equationViewModel.PopulateKeyGraphFeatures(keyGraphFeatureInfo);
IsKeyGraphFeaturesVisible = true;
equationViewModel.GraphEquation.IsSelected = true;
}
}
private void OnEquationsVectorChanged(IObservableVector <EquationViewModel> sender, IVectorChangedEventArgs e)
{
// If an item is already added to the graph, changing it should automatically trigger a graph update
if (e.CollectionChange == CollectionChange.ItemChanged)
{
return;
}
// Do not plot the graph if we are removing an empty equation, just remove it
if (e.CollectionChange == CollectionChange.ItemRemoved)
{
var itemToRemove = GraphingControl.Equations[(int)e.Index];
if (string.IsNullOrEmpty(itemToRemove.Expression))
{
GraphingControl.Equations.RemoveAt((int)e.Index);
if (GraphingControl.Equations.Count == 1 && string.IsNullOrEmpty(GraphingControl.Equations[0].Expression))
{
IsManualAdjustment = false;
}
return;
}
}
// Do not plot the graph if we are adding an empty equation, just add it
if (e.CollectionChange == CollectionChange.ItemInserted)
{
var itemToAdd = sender[(int)e.Index];
if (string.IsNullOrEmpty(itemToAdd.Expression))
{
GraphingControl.Equations.Add(itemToAdd.GraphEquation);
return;
}
}
// We are either adding or removing a valid equation, or resetting the collection. We will need to plot the graph
GraphingControl.Equations.Clear();
foreach (var equationViewModel in ViewModel.Equations)
{
GraphingControl.Equations.Add(equationViewModel.GraphEquation);
}
GraphingControl.PlotGraph(false);
}
private void OnTracePointChanged(double xPointValue, double yPointValue)
{
double xAxisMin, xAxisMax, yAxisMin, yAxisMax;
GraphingControl.GetDisplayRanges(out xAxisMin, out xAxisMax, out yAxisMin, out yAxisMax);
TraceValue.Text = "(" + xPointValue.ToString("R") + ", " + yPointValue.ToString("N15") + ")";
var peer = FrameworkElementAutomationPeer.FromElement(TraceValue);
if (peer != null)
{
peer.RaiseAutomationEvent(AutomationEvents.LiveRegionChanged);
}
PositionGraphPopup();
}
private void GraphViewButton_Click(object sender, RoutedEventArgs e)
{
var narratorNotifier = new NarratorNotifier();
string announcementText;
if (IsManualAdjustment)
{
announcementText = AppResourceProvider.GetInstance().GetResourceString("GraphViewManualAdjustmentAnnouncement");
}
else
{
announcementText = AppResourceProvider.GetInstance().GetResourceString("GraphViewAutomaticBestFitAnnouncement");
announcementText += AppResourceProvider.GetInstance().GetResourceString("GridResetAnnouncement");
GraphingControl.ResetGrid();
}
var announcement = CalculatorAnnouncement.GetGraphViewBestFitChangedAnnouncement(announcementText);
narratorNotifier.Announce(announcement);
CalculatorApp.ViewModel.Common.TraceLogger.GetInstance().LogGraphButtonClicked(
GraphButton.GraphView, IsManualAdjustment ? GraphButtonValue.ManualAdjustment : GraphButtonValue.AutomaticBestFit);
}
private void UpdateGraphAutomationName()
{
int numEquations = 0;
double xAxisMin, xAxisMax, yAxisMin, yAxisMax;
// Only count equations that are graphed
foreach (var equation in ViewModel.Equations)
{
if (equation.GraphEquation.IsValidated)
{
numEquations++;
}
}
GraphingControl.GetDisplayRanges(out xAxisMin, out xAxisMax, out yAxisMin, out yAxisMax);
GraphControlAutomationName = LocalizationStringUtil.GetLocalizedString(
AppResourceProvider.GetInstance().GetResourceString("graphAutomationName"),
xAxisMin.ToString(),
xAxisMax.ToString(),
yAxisMin.ToString(),
yAxisMax.ToString(),
numEquations.ToString());
}
// When share is invoked (by the user or programmatically) the event handler we registered will be called to populate the data package with the
// data to be shared. We will request the current graph image from the grapher as a stream that will pass to the share request.
private void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs args)
{
var resourceLoader = ResourceLoader.GetForCurrentView();
try
{
string rawHtml;
string equationHtml;
rawHtml = "<p><img src='graph.png' width='600' alt='" + resourceLoader.GetString("GraphImageAltText") + "'></p>";
var equations = ViewModel.Equations;
bool hasEquations = false;
if (equations.Count > 0)
{
equationHtml = "<span style=\"color: rgb(68, 114, 196); font-style: bold; font-size : 13pt;\">"
+ resourceLoader.GetString("EquationsShareHeader") + "</span>"
+ "<table cellpadding=\"0\" cellspacing=\"0\" >";
foreach (var equation in equations)
{
var expression = equation.Expression;
if (string.IsNullOrEmpty(expression))
{
continue;
}
var color = equation.LineColor;
hasEquations = true;
expression = GraphingControl.ConvertToLinear(expression);
string equationColorHtml;
equationColorHtml = "color:rgb(" + color.R.ToString() + "," + color.G.ToString() + "," + color.B.ToString() + ");";
equationHtml += "<tr style=\"margin: 0pt 0pt 0pt 0pt; padding: 0pt 0pt 0pt 0pt; \"><td><span style=\"font-size: 22pt; line-height: 0;"
+ equationColorHtml + "\">■</span></td><td><div style=\"margin: 4pt 0pt 0pt 6pt;\">"
+ Utilities.EscapeHtmlSpecialCharacters(expression) + "</div></td>";
}
equationHtml += "</table>";
if (hasEquations)
{
rawHtml += equationHtml;
}
}
var variables = ViewModel.Variables;
if (variables.Count > 0)
{
var localizedSeperator = LocalizationSettings.GetInstance().GetListSeparatorWinRT() + " ";
rawHtml += "<br><span style=\"color: rgb(68, 114, 196); font-style: bold; font-size: 13pt;\">"
+ resourceLoader.GetString("VariablesShareHeader")
+ "</span><br><div style=\"margin: 4pt 0pt 0pt 0pt;\">";
for (int i = 0; i < variables.Count; i++)
{
var name = variables[i].Name;
var value = variables[i].Value;
rawHtml += name + "=";
var formattedValue = value.ToString();
rawHtml += formattedValue;
if (variables.Count - 1 != i)
{
rawHtml += localizedSeperator;
}
}
rawHtml += "</div>";
}
rawHtml += "<br><br>";
// Shortcut to the request data
var requestData = args.Request.Data;
DataPackage dataPackage = new DataPackage();
var html = HtmlFormatHelper.CreateHtmlFormat(rawHtml);
requestData.Properties.Title = resourceLoader.GetString("ShareActionTitle");
requestData.SetHtmlFormat(html);
var bitmapStream = GraphingControl.GetGraphBitmapStream();
requestData.ResourceMap.Add("graph.png", bitmapStream);
requestData.SetBitmap(bitmapStream);
// Set the thumbnail image (in case the share target can't handle HTML)
requestData.Properties.Thumbnail = bitmapStream;
}
catch (Exception ex)
{
ShowShareError();
CalculatorApp.ViewModel.Common.TraceLogger.GetInstance().LogPlatformExceptionInfo(ViewMode.Graphing, System.Reflection.MethodBase.GetCurrentMethod().Name, ex.Message, ex.HResult);
}
}
private void OnZoomOutCommand(object parameter)
{
GraphingControl.ZoomFromCenter(zoomOutScale);
CalculatorApp.ViewModel.Common.TraceLogger.GetInstance().LogGraphButtonClicked(GraphButton.ZoomOut, GraphButtonValue.None);
}
private void OnVariableChanged(object sender, VariableChangedEventArgs args)
{
GraphingControl.SetVariable(args.variableName, args.newValue);
}