static void Main(string[] args)
{
// Make sure that settings aren't corrupted, and fix them.
try {
string uiLanguage = Settings.Default.UILanguage;
}
catch (ConfigurationErrorsException ex) { //(requires System.Configuration)
// Once the configuration system is corrupt, there doesn't appear a way to
// fix it (Settings.Default.Reload() doesn't work, even though you would
// think it would. So restarting the application appears to be the best way.
// We inform the user in case deleting doesn't work they can try to delete the file
// themselves. This is so rare it isn't worth localizing the message.
string filename = ((ConfigurationErrorsException)ex.InnerException).Filename;
MessageBox.Show(string.Format("The configuration file '{0}' is corrupted. Purple Pen will delete this file and restart.", filename),
"Corrupt Configuration File",
MessageBoxButtons.OK, MessageBoxIcon.Error);
File.Delete(filename);
System.Diagnostics.Process.Start(Application.ExecutablePath); // start new instance of application
return; // exit current instance of application.
}
// Enable crash reporting.
Application.ThreadException += (sender, e) => SendCrashReport(e.Exception);
AppDomain.CurrentDomain.UnhandledException += (sender, e) => {
SendCrashReport((Exception)e.ExceptionObject);
Environment.Exit(0);
};
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
InitUILanguage();
InitClientId();
FontDesc.InitializeFonts();
if (args.Length > 0 && LoadCommandLineFile(args[0]))
{
// We successfully loaded a file from the command line.
// Nothing more to do here.
}
else
{
// No command line args. Show initial screen to load/create an event.
new InitialScreen().Show();
}
Application.Run();
}
private void DrawSingleLineText(IGraphicsTarget g, string text, FontDesc fontDesc, PointF pt, StringAlignment horizAlignment, StringAlignment vertAlignment)
{
object font = new object();
g.CreateFont(font, fontDesc.Name, fontDesc.EmHeight, fontDesc.TextEffects);
ITextFaceMetrics fontMetrics = textMetrics.GetTextFaceMetrics(fontDesc.Name, fontDesc.EmHeight, fontDesc.TextEffects);
SizeF size = fontMetrics.GetTextSize(text);
switch (horizAlignment)
{
case StringAlignment.Near:
break;
case StringAlignment.Center:
pt.X = pt.X - size.Width / 2F; break;
case StringAlignment.Far:
pt.X = pt.X - size.Width; break;
}
switch (vertAlignment)
{
case StringAlignment.Near:
break;
case StringAlignment.Center:
pt.Y = pt.Y - size.Height / 2F; break;
case StringAlignment.Far:
pt.Y = pt.Y - size.Height; break;
}
g.DrawText(text, font, blackBrush, pt);
fontMetrics.Dispose();
}
internal static SizeF GetTextSize(string text, FontDesc font, float fontScaling)
{
Graphics g = Util.GetHiresGraphics();
using (Font f = font.GetScaledFont(fontScaling)) {
SizeF size = g.MeasureString(text, f, new PointF(0, 0), StringFormat.GenericTypographic);
// We really want the size of just the digits/capital letters. So, reduce by the descender size from
// bottom and top (no way to get offset from top of box to top of cap letters).
FontFamily family = f.FontFamily;
float descender = family.GetCellDescent(f.Style) * font.EmHeight * fontScaling / family.GetEmHeight(f.Style);
size.Height = size.Height - 2 * descender;
return size;
}
}
internal static PointF GetTextLocation(PointF controlLocation, float distanceFromCenter, string text, FontDesc font, float fontScaling, IEnumerable<CourseObj> list)
{
const double deltaAngle = Math.PI / 16; // angle to increase by each time when testing an angle.
// Get a list of all nearby objects that we want to stay away from.
List<CourseObj> nearbyObjects = GetNearbyObjects(list, controlLocation, distanceFromCenter * 4);
// Get the size of the text.
SizeF textSize = GetTextSize(text, font, fontScaling);
// Try 32 different locations for the number, finding which angle has the largest distance from nearby objects.
// Start at the default angle, so if all angles are equally good that is the one we pick.
PointF bestPoint = new PointF();
double bestDistance = -1;
for (double angle = NormalCourseAppearance.defaultControlNumberAngle;
angle < NormalCourseAppearance.defaultControlNumberAngle + 2 * Math.PI;
angle += deltaAngle)
{
PointF pt = GetRectangleCenter(controlLocation, distanceFromCenter, angle, textSize);
double distanceFromNearby = GetMinDistanceFromNearby(pt, nearbyObjects);
if (distanceFromNearby > bestDistance) {
bestPoint = pt;
bestDistance = distanceFromNearby;
}
}
return bestPoint;
}