From 8abfde99cd4f1365dbafce90eb5db0d14d51d3fd Mon Sep 17 00:00:00 2001
From: Mark van Renswoude <mark@x2software.net>
Date: Tue, 20 May 2014 06:59:10 +0000
Subject: [PATCH] Added: Singleton TX2GlobalLog Added: base for monitor form

---
 Test/X2LogTest.dpr             |   4 +-
 Test/X2LogTest.dproj           |   5 ++
 X2Log.Global.pas               | 102 +++++++++++++++++++++++++++++++++
 X2Log.Observer.MonitorForm.dfm |  16 ++++++
 X2Log.Observer.MonitorForm.pas |  65 +++++++++++++++++++++
 5 files changed, 191 insertions(+), 1 deletion(-)
 create mode 100644 X2Log.Global.pas
 create mode 100644 X2Log.Observer.MonitorForm.dfm
 create mode 100644 X2Log.Observer.MonitorForm.pas

diff --git a/Test/X2LogTest.dpr b/Test/X2LogTest.dpr
index ff3104f..0a4af8d 100644
--- a/Test/X2LogTest.dpr
+++ b/Test/X2LogTest.dpr
@@ -12,7 +12,9 @@ uses
   X2Log.Observer.LogFile in '..\X2Log.Observer.LogFile.pas',
   X2Log.Constants in '..\X2Log.Constants.pas',
   X2Log.Observer.NamedPipe in '..\X2Log.Observer.NamedPipe.pas',
-  X2Log.Observer.CustomThreaded in '..\X2Log.Observer.CustomThreaded.pas';
+  X2Log.Observer.CustomThreaded in '..\X2Log.Observer.CustomThreaded.pas',
+  X2Log.Observer.MonitorForm in '..\X2Log.Observer.MonitorForm.pas' {X2LogObserverMonitorForm},
+  X2Log.Global in '..\X2Log.Global.pas';
 
 {$R *.res}
 
diff --git a/Test/X2LogTest.dproj b/Test/X2LogTest.dproj
index b34f1bf..35a1f50 100644
--- a/Test/X2LogTest.dproj
+++ b/Test/X2LogTest.dproj
@@ -183,6 +183,11 @@
 			<DCCReference Include="..\X2Log.Constants.pas"/>
 			<DCCReference Include="..\X2Log.Observer.NamedPipe.pas"/>
 			<DCCReference Include="..\X2Log.Observer.CustomThreaded.pas"/>
+			<DCCReference Include="..\X2Log.Observer.MonitorForm.pas">
+				<Form>X2LogObserverMonitorForm</Form>
+				<FormType>dfm</FormType>
+			</DCCReference>
+			<DCCReference Include="..\X2Log.Global.pas"/>
 			<BuildConfiguration Include="Debug">
 				<Key>Cfg_2</Key>
 				<CfgParent>Base</CfgParent>
diff --git a/X2Log.Global.pas b/X2Log.Global.pas
new file mode 100644
index 0000000..2c1faca
--- /dev/null
+++ b/X2Log.Global.pas
@@ -0,0 +1,102 @@
+unit X2Log.Global;
+
+interface
+uses
+  System.SysUtils,
+
+  X2Log.Intf;
+
+
+type
+  TX2GlobalLog = class(TObject)
+  private
+    class var FInstance: IX2Log;
+  public
+    class function Instance: IX2Log;
+
+    { Facade for IX2Log }
+    class procedure Attach(AObserver: IX2LogObserver);
+    class procedure Detach(AObserver: IX2LogObserver);
+
+    class procedure SetExceptionStrategy(AStrategy: IX2LogExceptionStrategy);
+
+    { Facade for IX2LogMethods }
+    class procedure Log(ALevel: TX2LogLevel; const AMessage: string; const ADetails: string = '');
+
+    class procedure Verbose(const AMessage: string; const ADetails: string = '');
+    class procedure Info(const AMessage: string; const ADetails: string = '');
+    class procedure Warning(const AMessage: string; const ADetails: string = '');
+    class procedure Error(const AMessage: string; const ADetails: string = '');
+    class procedure Exception(AException: Exception; const AMessage: string = ''; const ADetails: string = '');
+  end;
+
+
+implementation
+uses
+  X2Log;
+
+
+{ TX2GlobalLog }
+class function TX2GlobalLog.Instance: IX2Log;
+begin
+  if not Assigned(FInstance) then
+    FInstance := TX2Log.Create;
+
+  Result := FInstance;
+end;
+
+
+class procedure TX2GlobalLog.Attach(AObserver: IX2LogObserver);
+begin
+  Instance.Attach(AObserver);
+end;
+
+
+class procedure TX2GlobalLog.Detach(AObserver: IX2LogObserver);
+begin
+  instance.Detach(AObserver);
+end;
+
+
+class procedure TX2GlobalLog.SetExceptionStrategy(AStrategy: IX2LogExceptionStrategy);
+begin
+  Instance.SetExceptionStrategy(AStrategy);
+end;
+
+
+class procedure TX2GlobalLog.Log(ALevel: TX2LogLevel; const AMessage, ADetails: string);
+begin
+  Instance.Log(ALevel, AMessage, ADetails);
+end;
+
+
+class procedure TX2GlobalLog.Verbose(const AMessage, ADetails: string);
+begin
+  Instance.Verbose(AMessage, ADetails);
+end;
+
+
+class procedure TX2GlobalLog.Info(const AMessage, ADetails: string);
+begin
+  Instance.Info(AMessage, ADetails);
+end;
+
+
+class procedure TX2GlobalLog.Warning(const AMessage, ADetails: string);
+begin
+  Instance.Warning(AMessage, ADetails);
+end;
+
+
+class procedure TX2GlobalLog.Error(const AMessage, ADetails: string);
+begin
+  Instance.Error(AMessage, ADetails);
+end;
+
+
+class procedure TX2GlobalLog.Exception(AException: Exception; const AMessage, ADetails: string);
+begin
+  Instance.Exception(AException, AMessage, ADetails);
+end;
+
+end.
diff --git a/X2Log.Observer.MonitorForm.dfm b/X2Log.Observer.MonitorForm.dfm
new file mode 100644
index 0000000..994b316
--- /dev/null
+++ b/X2Log.Observer.MonitorForm.dfm
@@ -0,0 +1,16 @@
+object X2LogObserverMonitorForm: TX2LogObserverMonitorForm
+  Left = 0
+  Top = 0
+  Caption = 'Log'
+  ClientHeight = 519
+  ClientWidth = 658
+  Color = clBtnFace
+  Font.Charset = DEFAULT_CHARSET
+  Font.Color = clWindowText
+  Font.Height = -11
+  Font.Name = 'Tahoma'
+  Font.Style = []
+  OldCreateOrder = False
+  PixelsPerInch = 96
+  TextHeight = 13
+end
diff --git a/X2Log.Observer.MonitorForm.pas b/X2Log.Observer.MonitorForm.pas
new file mode 100644
index 0000000..9167aac
--- /dev/null
+++ b/X2Log.Observer.MonitorForm.pas
@@ -0,0 +1,65 @@
+unit X2Log.Observer.MonitorForm;
+
+interface
+uses
+  Vcl.Controls,
+  Vcl.Forms,
+  Winapi.Messages,
+
+  X2Log.Intf;
+
+
+const
+  CM_REENABLE = WM_APP + 1;
+
+
+type
+  TX2LogObserverMonitorForm = class(TForm, IX2LogObserver)
+  protected
+    procedure CreateParams(var Params: TCreateParams); override;
+
+    procedure WMEnable(var Msg: TWMEnable); message WM_ENABLE;
+    procedure CMReenable(var Msg: TMessage); message CM_REENABLE;
+  public
+    { IX2LogObserver }
+    procedure Log(ALevel: TX2LogLevel; const AMessage: string; const ADetails: string = '');
+  end;
+
+
+implementation
+uses
+  Winapi.Windows;
+
+
+{$R *.dfm}
+
+
+{ TX2LogObserverMonitorForm }
+procedure TX2LogObserverMonitorForm.CreateParams(var Params: TCreateParams);
+begin
+  inherited CreateParams(Params);
+
+  Params.WndParent := 0;
+end;
+
+
+procedure TX2LogObserverMonitorForm.Log(ALevel: TX2LogLevel; const AMessage, ADetails: string);
+begin
+  //
+end;
+
+
+procedure TX2LogObserverMonitorForm.WMEnable(var Msg: TWMEnable);
+begin
+  if not Msg.Enabled then
+    { Modal forms disable all other forms, ensure we're still accessible }
+    PostMessage(Self.Handle, CM_REENABLE, 0, 0);
+end;
+
+
+procedure TX2LogObserverMonitorForm.CMReenable(var Msg: TMessage);
+begin
+  EnableWindow(Self.Handle, True);
+end;
+
+end.