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mirror of synced 2024-11-08 14:19:16 +00:00

Added: working implementation of Observer.MonitorForm, lacking details view

Fixed: memory leaks with singletons
This commit is contained in:
Mark van Renswoude 2014-05-20 08:49:57 +00:00
parent 8abfde99cd
commit 041dfc71d6
13 changed files with 660 additions and 6 deletions

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@ -1,6 +1,11 @@
program X2LogTest;
uses
madExcept,
madLinkDisAsm,
madListHardware,
madListProcesses,
madListModules,
Forms,
MainFrm in 'source\MainFrm.pas' {MainForm},
X2Log.Intf in '..\X2Log.Intf.pas',
@ -24,6 +29,7 @@ var
begin
Application.Initialize;
Application.MainFormOnTaskbar := True;
Application.Title := 'X²LogTest';
Application.CreateForm(TMainForm, MainForm);
Application.Run;
end.

View File

@ -84,6 +84,8 @@
<DCC_Define>DEBUG;$(DCC_Define)</DCC_Define>
</PropertyGroup>
<PropertyGroup Condition="'$(Cfg_2_Win32)'!=''">
<DCC_Define>madExcept;$(DCC_Define)</DCC_Define>
<DCC_MapFile>3</DCC_MapFile>
<Manifest_File>$(BDS)\bin\default_app.manifest</Manifest_File>
<VerInfo_IncludeVerInfo>true</VerInfo_IncludeVerInfo>
<VerInfo_Locale>1033</VerInfo_Locale>

View File

@ -32,6 +32,10 @@ object MainForm: TMainForm
OnChange = pcObserversChange
object tsEvent: TTabSheet
Caption = 'Event Observer '
ExplicitLeft = 0
ExplicitTop = 0
ExplicitWidth = 0
ExplicitHeight = 0
object mmoEvent: TMemo
AlignWithMargins = True
Left = 8
@ -51,6 +55,10 @@ object MainForm: TMainForm
object tsFile: TTabSheet
Caption = 'File Observer'
ImageIndex = 1
ExplicitLeft = 0
ExplicitTop = 0
ExplicitWidth = 0
ExplicitHeight = 0
end
object tsNamedPipe: TTabSheet
Caption = 'Named Pipe Observer'
@ -78,7 +86,18 @@ object MainForm: TMainForm
Align = alRight
Cancel = True
Caption = 'Close'
TabOrder = 1
end
object btnMonitorForm: TButton
Left = 0
Top = 0
Width = 145
Height = 25
Align = alLeft
Cancel = True
Caption = 'Monitor Form Observer'
TabOrder = 0
OnClick = btnMonitorFormClick
end
end
object GroupBox1: TGroupBox

View File

@ -28,6 +28,7 @@ type
edtException: TEdit;
btnException: TButton;
tsNamedPipe: TTabSheet;
btnMonitorForm: TButton;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
@ -36,6 +37,7 @@ type
procedure edtExceptionKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure edtMessageKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure btnExceptionClick(Sender: TObject);
procedure btnMonitorFormClick(Sender: TObject);
private
FLog: IX2Log;
FObserver: IX2LogObserver;
@ -56,6 +58,7 @@ uses
X2Log.Exception.madExcept,
X2Log.Observer.Event,
X2Log.Observer.LogFile,
X2Log.Observer.MonitorForm,
X2Log.Observer.NamedPipe;
@ -65,11 +68,15 @@ uses
{ TMainForm }
procedure TMainForm.FormCreate(Sender: TObject);
begin
{ Testing the localization (Dutch) }
SetLogResourceString(@LogLevelVerbose, 'Uitgebreid');
SetLogResourceString(@LogLevelInfo, 'Informatie');
SetLogResourceString(@LogLevelWarning, 'Waarschuwing');
SetLogResourceString(@LogLevelError, 'Fout');
SetLogResourceString(@LogMonitorFormColumnTime, 'Tijd');
SetLogResourceString(@LogMonitorFormColumnMessage, 'Melding');
FLog := TX2Log.Create;
FLog.SetExceptionStrategy(TX2LogmadExceptExceptionStrategy.Create);
@ -164,4 +171,10 @@ begin
end;
end;
procedure TMainForm.btnMonitorFormClick(Sender: TObject);
begin
TX2LogObserverMonitorForm.ShowInstance(FLog);
end;
end.

View File

@ -26,6 +26,19 @@ resourcestring
LogFileLineDetails = ' (details: %s)';
{
X2Log.Observer.MonitorForm
}
{ Caption of the monitor form. %s is optional and will be replaced
with the application's title }
LogMonitorFormCaption = '%s - Live Log';
{ Caption of the columns in the live log view }
LogMonitorFormColumnTime = 'Time';
LogMonitorFormColumnMessage = 'Message';
function GetLogLevelText(ALogLevel: TX2LogLevel): string;

View File

@ -9,8 +9,10 @@ uses
type
TX2GlobalLog = class(TObject)
private
class var FInstance: IX2Log;
private class var
FInstance: IX2Log;
protected
class procedure CleanupInstance;
public
class function Instance: IX2Log;
@ -46,6 +48,13 @@ begin
end;
class procedure TX2GlobalLog.CleanupInstance;
begin
if Assigned(FInstance) then
FreeAndNil(FInstance);
end;
class procedure TX2GlobalLog.Attach(AObserver: IX2LogObserver);
begin
Instance.Attach(AObserver);
@ -99,4 +108,9 @@ begin
Instance.Exception(AException, AMessage, ADetails);
end;
initialization
finalization
TX2GlobalLog.CleanupInstance;
end.

View File

@ -1,7 +1,7 @@
object X2LogObserverMonitorForm: TX2LogObserverMonitorForm
Left = 0
Top = 0
Caption = 'Log'
Caption = 'Live Log'
ClientHeight = 519
ClientWidth = 658
Color = clBtnFace
@ -11,6 +11,321 @@ object X2LogObserverMonitorForm: TX2LogObserverMonitorForm
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
OnClose = FormClose
OnShow = FormShow
PixelsPerInch = 96
TextHeight = 13
object vstLog: TVirtualStringTree
Left = 0
Top = 0
Width = 658
Height = 519
Align = alClient
Header.AutoSizeIndex = 2
Header.Font.Charset = DEFAULT_CHARSET
Header.Font.Color = clWindowText
Header.Font.Height = -11
Header.Font.Name = 'Tahoma'
Header.Font.Style = []
Header.Options = [hoAutoResize, hoColumnResize, hoDrag, hoShowSortGlyphs, hoVisible, hoHeaderClickAutoSort]
Images = ilsLog
TabOrder = 0
TreeOptions.PaintOptions = [toHideFocusRect, toShowButtons, toShowDropmark, toThemeAware]
TreeOptions.SelectionOptions = [toFullRowSelect]
OnFreeNode = vstLogFreeNode
OnGetText = vstLogGetText
OnGetImageIndex = vstLogGetImageIndex
OnInitNode = vstLogInitNode
Columns = <
item
Options = [coAllowClick, coDraggable, coEnabled, coParentBidiMode, coParentColor, coShowDropMark, coVisible, coAllowFocus]
Position = 0
Width = 24
end
item
Position = 1
Width = 150
WideText = 'Time'
end
item
Position = 2
Width = 480
WideText = 'Message'
end>
end
object ilsLog: TImageList
Left = 584
Top = 48
Bitmap = {
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end
end

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@ -2,8 +2,12 @@ unit X2Log.Observer.MonitorForm;
interface
uses
System.Classes,
System.Generics.Collections,
Vcl.Controls,
Vcl.Forms,
Vcl.ImgList,
VirtualTrees,
Winapi.Messages,
X2Log.Intf;
@ -15,26 +19,185 @@ const
type
TX2LogObserverMonitorForm = class(TForm, IX2LogObserver)
vstLog: TVirtualStringTree;
ilsLog: TImageList;
procedure FormShow(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure vstLogInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates);
procedure vstLogFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode);
procedure vstLogGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: string);
procedure vstLogGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer);
private class var
FInstances: TDictionary<IX2Log,TX2LogObserverMonitorForm>;
private
FFreeOnClose: Boolean;
FLogToAttach: IX2Log;
FLogAttached: Boolean;
protected
class function GetInstance(ALog: IX2Log; out AForm: TX2LogObserverMonitorForm): Boolean;
class procedure RemoveInstance(AForm: TX2LogObserverMonitorForm);
class procedure CleanupInstances;
procedure CreateParams(var Params: TCreateParams); override;
procedure WMEnable(var Msg: TWMEnable); message WM_ENABLE;
procedure CMReenable(var Msg: TMessage); message CM_REENABLE;
property LogToAttach: IX2Log read FLogToAttach;
property LogAttached: Boolean read FLogAttached;
public
class function Instance(ALog: IX2Log): TX2LogObserverMonitorForm;
class procedure ShowInstance(ALog: IX2Log);
class procedure CloseInstance(ALog: IX2Log);
constructor Create(AOwner: TComponent; ALogToAttach: IX2Log = nil); reintroduce;
destructor Destroy; override;
{ IX2LogObserver }
procedure Log(ALevel: TX2LogLevel; const AMessage: string; const ADetails: string = '');
property FreeOnClose: Boolean read FFreeOnClose write FFreeOnClose;
end;
implementation
uses
Winapi.Windows;
System.DateUtils,
System.SysUtils,
Winapi.Windows,
X2Log.Constants;
{$R *.dfm}
type
TLogEntryNodeData = record
Time: TDateTime;
Level: TX2LogLevel;
Message: string;
Details: string;
procedure Initialize(ALevel: TX2LogLevel; const AMessage, ADetails: string);
end;
PLogEntryNodeData = ^TLogEntryNodeData;
const
ColumnLevel = 0;
ColumnTime = 1;
ColumnMessage = 2;
{ TLogEntryNode }
procedure TLogEntryNodeData.Initialize(ALevel: TX2LogLevel; const AMessage, ADetails: string);
begin
Time := Now;
Level := ALevel;
Message := AMessage;
Details := ADetails;
end;
{ TX2LogObserverMonitorForm }
class function TX2LogObserverMonitorForm.Instance(ALog: IX2Log): TX2LogObserverMonitorForm;
var
log: IX2Log;
begin
{ Explicit cast ensures we're getting the same pointer every time if, for example,
the implementing interface is a descendant of IX2Log }
log := (ALog as IX2Log);
if not Assigned(FInstances) then
FInstances := TDictionary<IX2Log,TX2LogObserverMonitorForm>.Create;
if not FInstances.TryGetValue(log, Result) then
begin
Result := TX2LogObserverMonitorForm.Create(nil, log);
Result.FreeOnClose := True;
FInstances.Add(log, Result);
end;
end;
class procedure TX2LogObserverMonitorForm.ShowInstance(ALog: IX2Log);
begin
Instance(ALog).Show;
end;
class procedure TX2LogObserverMonitorForm.CloseInstance(ALog: IX2Log);
var
monitorForm: TX2LogObserverMonitorForm;
begin
if GetInstance(ALog, monitorForm) then
monitorForm.Close;
end;
class function TX2LogObserverMonitorForm.GetInstance(ALog: IX2Log; out AForm: TX2LogObserverMonitorForm): Boolean;
begin
Result := False;
if Assigned(FInstances) then
Result := FInstances.TryGetValue(ALog as IX2Log, AForm);
end;
class procedure TX2LogObserverMonitorForm.RemoveInstance(AForm: TX2LogObserverMonitorForm);
var
log: IX2Log;
begin
if Assigned(FInstances) then
begin
for log in FInstances.Keys do
begin
if FInstances[log] = AForm then
begin
FInstances.Remove(log);
break;
end;
end;
end;
end;
class procedure TX2LogObserverMonitorForm.CleanupInstances;
begin
if Assigned(FInstances) then
FreeAndNil(FInstances);
end;
constructor TX2LogObserverMonitorForm.Create(AOwner: TComponent; ALogToAttach: IX2Log);
var
captionFormat: string;
begin
inherited Create(AOwner);
FLogToAttach := ALogToAttach;
captionFormat := GetLogResourceString(@LogMonitorFormCaption);
if Pos('%s', captionFormat) > 0 then
Caption := Format(captionFormat, [Application.Title])
else
Caption := captionFormat;
vstLog.NodeDataSize := SizeOf(TLogEntryNodeData);
vstLog.Header.Columns[ColumnTime].Text := GetLogResourceString(@LogMonitorFormColumnTime);
vstLog.Header.Columns[ColumnMessage].Text := GetLogResourceString(@LogMonitorFormColumnMessage);
end;
procedure TX2LogObserverMonitorForm.CreateParams(var Params: TCreateParams);
begin
inherited CreateParams(Params);
@ -43,9 +206,51 @@ begin
end;
procedure TX2LogObserverMonitorForm.Log(ALevel: TX2LogLevel; const AMessage, ADetails: string);
destructor TX2LogObserverMonitorForm.Destroy;
begin
//
if Assigned(FLogToAttach) and FLogAttached then
FLogToAttach.Detach(Self);
RemoveInstance(Self);
inherited Destroy;
end;
procedure TX2LogObserverMonitorForm.FormShow(Sender: TObject);
begin
if Assigned(FLogToAttach) and (not FLogAttached) then
begin
FLogToAttach.Attach(Self);
FLogAttached := True;
end;
end;
procedure TX2LogObserverMonitorForm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
if Assigned(FLogToAttach) and FLogAttached then
begin
FLogToAttach.Detach(Self);
FLogAttached := False;
end;
if FreeOnClose then
Action := caFree
else
Action := caHide;
end;
procedure TX2LogObserverMonitorForm.Log(ALevel: TX2LogLevel; const AMessage, ADetails: string);
var
node: PVirtualNode;
nodeData: PLogEntryNodeData;
begin
node := vstLog.AddChild(nil);
nodeData := vstLog.GetNodeData(node);
nodeData^.Initialize(ALevel, AMessage, ADetails);
end;
@ -62,4 +267,71 @@ begin
EnableWindow(Self.Handle, True);
end;
procedure TX2LogObserverMonitorForm.vstLogInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode;
var InitialStates: TVirtualNodeInitStates);
var
nodeData: PLogEntryNodeData;
begin
nodeData := Sender.GetNodeData(Node);
Initialize(nodeData^);
end;
procedure TX2LogObserverMonitorForm.vstLogFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode);
var
nodeData: PLogEntryNodeData;
begin
nodeData := Sender.GetNodeData(Node);
Finalize(nodeData^);
end;
procedure TX2LogObserverMonitorForm.vstLogGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex;
TextType: TVSTTextType; var CellText: string);
var
nodeData: PLogEntryNodeData;
begin
CellText := '';
nodeData := Sender.GetNodeData(Node);
case Column of
ColumnTime:
CellText := DateTimeToStr(nodeData^.Time);
ColumnMessage:
CellText := nodeData^.Message;
end;
end;
procedure TX2LogObserverMonitorForm.vstLogGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind;
Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer);
var
nodeData: PLogEntryNodeData;
begin
if Kind in [ikNormal, ikSelected] then
begin
nodeData := Sender.GetNodeData(Node);
case Column of
ColumnLevel:
case nodeData^.Level of
TX2LogLevel.Verbose: ImageIndex := 0;
TX2LogLevel.Info: ImageIndex := 1;
TX2LogLevel.Warning: ImageIndex := 2;
TX2LogLevel.Error: ImageIndex := 3;
end;
ColumnMessage:
if Length(nodeData^.Details) > 0 then
ImageIndex := 4;
end;
end;
end;
end.