Don't color passwords when editing multiple entries

When multiple entries are selected for simultaneous editing, and they have different passwords, KeePass indicates this by inserting the text "(Multiple values)" in the password field.
ColoredPassword will no longer color this text and keep the default color (grey) instead

Closes #19

src/ColoredSecureTextBox.cs

@@ -178,13 +178,13 @@ protected override void OnParentChanged(EventArgs e)
 			Parent.PerformLayout();
 		}
 
-		//Don't show ColorTextBox if
-		//  - m_form is set (KeyPromptForm or KeyCreationForm)
-		//  AND
-		//  - form.Shown event has not been raised yet
-		//
-		//This can result in a wrong CAPS LOCK warning tooltip - cf. https://github.com/Rookiestyle/ColoredPassword/issues/15
-		private bool m_bKeyFormShown = false;
+        //Don't show ColorTextBox if
+        //  - m_form is set (KeyPromptForm or KeyCreationForm)
+        //  AND
+        //  - form.Shown event has not been raised yet
+        //
+        //This can result in a wrong CAPS LOCK warning tooltip - cf. https://github.com/Rookiestyle/ColoredPassword/issues/15
+        private bool m_bKeyFormShown = false;
 		private bool? m_bRememberedProtectionState = null;
 		public override void EnableProtection(bool bEnable)
 		{
@@ -304,7 +304,7 @@ protected override void Dispose(bool disposing)
 			}
 		}
 
-		private Form GetForm(Control c)
+		internal static Form GetForm(Control c)
 		{
 			if (c == null) return null;
 			var f = c.Parent;
@@ -383,11 +383,35 @@ public static List<CharRange> GetRanges(string s)
 			return lCR;
 		}
 
+		private bool? m_bIsPwEntryFormMultipleValues = null;
+		private bool IsPwEntryFormMultipleValues()
+		{
+			if (m_bIsPwEntryFormMultipleValues.HasValue) return m_bIsPwEntryFormMultipleValues.Value;
+			KeePass.Forms.PwEntryForm pef = ColoredSecureTextBox.GetForm(this) as KeePass.Forms.PwEntryForm;
+			if (pef == null)
+			{
+				m_bIsPwEntryFormMultipleValues = false;
+				return m_bIsPwEntryFormMultipleValues.Value;
+			}
+			m_bIsPwEntryFormMultipleValues = Tools.GetField("m_mvec", pef) != null;
+			if (m_bIsPwEntryFormMultipleValues.Value)
+				PluginDebug.AddInfo("PwEntryForm showing multiple entries: Do NOT color text (" + KeePass.Resources.KPRes.MultipleValues + ")", 0);
+			return m_bIsPwEntryFormMultipleValues.Value;
+		}
+
 		public void ColorText()
 		{
 			int nCursorPos = SelectionStart; //save cursor position
+			if (IsPwEntryFormMultipleValues() && this.Text == "(" + KeePass.Resources.KPRes.MultipleValues + ")")
+			{
+				//taken from KeePass.Util.MultipleValuesEx.ConfigureText
+				Color clrNormal = this.ForeColor;
+				Color clrMulti = UIUtil.ColorTowards(clrNormal, (UIUtil.IsDarkColor(
+				clrNormal) ? Color.White : Color.Black), 0.5);
+				this.ForeColor = clrMulti;
+				return;
+			}
 			SelectAll();
-
 			List<CharRange> lCR = GetRanges(this.Text);
 			List<string> lMsg = new List<string>();
 			bool bError = false;

src/Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@
 // Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
 // indem Sie "*" wie unten gezeigt eingeben:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.14.3")]
-[assembly: AssemblyFileVersion("0.14.3")]
+[assembly: AssemblyVersion("0.15")]
+[assembly: AssemblyFileVersion("0.15")]

version.info

@@ -1,5 +1,5 @@
 :
-ColoredPassword:0.14.3
+ColoredPassword:0.15
 ColoredPassword!de:6
 ColoredPassword!pl:2
 ColoredPassword!pt:2