Changeset 512 for Common/UJobProgressView.pas

Timestamp:

Apr 19, 2018, 4:05:54 PM (7 years ago)

Author:

chronos

Message:

• Added: JobProgressView demo for better testing of the component.

File:

• Common/UJobProgressView.pas (modified) (23 diffs)

Common/UJobProgressView.pas

@@ -7 +7 @@
 uses
   SysUtils, Variants, Classes, Graphics, Controls, Forms, Syncobjs,
-  Dialogs, ComCtrls, StdCtrls, ExtCtrls, Contnrs, UThreading,
+  Dialogs, ComCtrls, StdCtrls, ExtCtrls, Contnrs, UThreading, Math,
   DateUtils;
 
@@ -13 +13 @@
   EstimatedTimeShowTreshold = 4;
   EstimatedTimeShowTresholdTotal = 1;
-  MemoLogHeight = 200;
   UpdateInterval = 100; // ms
 
@@ -24 +23 @@
     FLock: TCriticalSection;
     FOnChange: TNotifyEvent;
+    FText: string;
     FValue: Integer;
     FMax: Integer;
     procedure SetMax(const AValue: Integer);
+    procedure SetText(AValue: string);
     procedure SetValue(const AValue: Integer);
   public
@@ -35 +36 @@
     property Value: Integer read FValue write SetValue;
     property Max: Integer read FMax write SetMax;
+    property Text: string read FText write SetText;
     property OnChange: TNotifyEvent read FOnChange write FOnChange;
   end;
@@ -69 +71 @@
   end;
 
+  TJobs = class(TObjectList)
+  end;
+
   TJobThread = class(TListedThread)
     procedure Execute; override;
@@ -80 +85 @@
   TFormJobProgressView = class(TForm)
     ImageList1: TImageList;
+    LabelText: TLabel;
     Label2: TLabel;
     LabelOperation: TLabel;
@@ -86 +92 @@
     ListViewJobs: TListView;
     MemoLog: TMemo;
+    PanelText: TPanel;
     PanelProgressTotal: TPanel;
     PanelOperationsTitle: TPanel;
@@ -94 +101 @@
     ProgressBarTotal: TProgressBar;
     TimerUpdate: TTimer;
+    procedure FormHide(Sender: TObject);
+    procedure FormShow(Sender: TObject);
+    procedure ReloadJobList;
     procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
     procedure FormDestroy(Sender: TObject);
@@ -100 +110 @@
     procedure FormCreate(Sender: TObject);
     procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
+    procedure UpdateHeight;
   public
     JobProgressView: TJobProgressView;
@@ -120 +131 @@
     procedure SetTerminate(const AValue: Boolean);
     procedure UpdateProgress;
-    procedure ReloadJobList;
-    procedure StartJobs;
-    procedure UpdateHeight;
     procedure JobProgressChange(Sender: TObject);
   public
     Form: TFormJobProgressView;
-    Jobs: TObjectList; // TListObject<TJob>
+    Jobs: TJobs;
     CurrentJob: TJob;
     CurrentJobIndex: Integer;
@@ -134 +142 @@
     procedure AddJob(Title: string; Method: TJobProgressViewMethod;
       NoThreaded: Boolean = False; WaitFor: Boolean = False);
-    procedure Start(AAutoClose: Boolean = True);
+    procedure Start;
     procedure Stop;
     procedure TermSleep(Delay: Integer);
@@ -166 +174 @@
   STotalEstimatedTime = 'Total estimated time: %s';
   SFinished = 'Finished';
+  SOperations = 'Operations:';
 
 procedure Register;
@@ -207 +216 @@
 end;
 
-procedure TJobProgressView.Start(AAutoClose: Boolean = True);
-begin
-  AutoClose := AAutoClose;
-  StartJobs;
-end;
-
-procedure TJobProgressView.StartJobs;
+procedure TJobProgressView.Start;
 var
   I: Integer;
@@ -228 +231 @@
     Form.MemoLog.Clear;
 
+    Form.PanelText.Visible := False;
     Form.LabelEstimatedTimePart.Visible := False;
     Form.LabelEstimatedTimeTotal.Visible := False;
@@ -257 +261 @@
       Form.ProgressBarPart.Visible := False;
       //Show;
-      ReloadJobList;
+      Form.ReloadJobList;
       Application.ProcessMessages;
       if NoThreaded then begin
@@ -295 +299 @@
     //if Visible then Hide;
     Form.MemoLog.Lines.Assign(Log);
-    if (Form.MemoLog.Lines.Count = 0) and AutoClose then begin
+    if (Form.MemoLog.Lines.Count = 0) and FAutoClose then begin
       Form.Hide;
     end;
-    Clear;
+    //Clear;
     Form.Caption := SFinished;
     //LabelEstimatedTimePart.Visible := False;
     Finished := True;
     CurrentJobIndex := -1;
-    ReloadJobList;
-  end;
-end;
-
-procedure TJobProgressView.UpdateHeight;
+    Form.ReloadJobList;
+  end;
+end;
+
+procedure TFormJobProgressView.UpdateHeight;
 var
   H: Integer;
@@ -315 +319 @@
   PanelProgressTotalVisible: Boolean;
   PanelLogVisible: Boolean;
-begin
-  with Form do begin
-  H := PanelOperationsTitle.Height;
-  PanelOperationsVisible := Jobs.Count > 0;
-  if PanelOperationsVisible <> PanelOperations.Visible then
-    PanelOperations.Visible := PanelOperationsVisible;
-  PanelOperationsHeight := 8 + 18 * Jobs.Count;
-  if PanelOperationsHeight <> PanelOperations.Height then
-    PanelOperations.Height := PanelOperationsHeight;
-  if PanelOperationsVisible then
-    H := H + PanelOperations.Height;
-
-  PanelProgressVisible := (Jobs.Count > 0) and not Finished;
-  if PanelProgressVisible <> PanelProgress.Visible then
-    PanelProgress.Visible := PanelProgressVisible;
-  if PanelProgressVisible then
-    H := H + PanelProgress.Height;
-  PanelProgressTotalVisible := (Jobs.Count > 1) and not Finished;
-  if PanelProgressTotalVisible <> PanelProgressTotal.Visible then
-    PanelProgressTotal.Visible := PanelProgressTotalVisible;
-  if PanelProgressTotalVisible then
-    H := H + PanelProgressTotal.Height;
-  Constraints.MinHeight := H;
-  PanelLogVisible := MemoLog.Lines.Count > 0;
-  if PanelLogVisible <> PanelLog.Visible then
-    PanelLog.Visible := PanelLogVisible;
-  if PanelLogVisible then
-    H := H + MemoLogHeight;
-  if Height <> H then Height := H;
-  end;
+  MemoLogHeight: Integer = 200;
+  I: Integer;
+  ItemRect: TRect;
+  MaxH: Integer;
+begin
+    H := PanelOperationsTitle.Height;
+    PanelOperationsVisible := JobProgressView.Jobs.Count > 0;
+    if PanelOperationsVisible <> PanelOperations.Visible then
+      PanelOperations.Visible := PanelOperationsVisible;
+    if ListViewJobs.Items.Count > 0 then begin
+      Maxh := 0;
+      for I := 0 to ListViewJobs.Items.Count - 1 do
+      begin
+        ItemRect := ListViewJobs.Items[i].DisplayRect(drBounds);
+        Maxh := Max(Maxh, ItemRect.Top + (ItemRect.Bottom - ItemRect.Top));
+      end;
+      PanelOperationsHeight := Scale96ToScreen(12) + Maxh;
+    end else PanelOperationsHeight := Scale96ToScreen(8);
+    if PanelOperationsHeight <> PanelOperations.Height then
+      PanelOperations.Height := PanelOperationsHeight;
+    if PanelOperationsVisible then
+      H := H + PanelOperations.Height;
+
+    PanelProgressVisible := (JobProgressView.Jobs.Count > 0) and not JobProgressView.Finished;
+    if PanelProgressVisible <> PanelProgress.Visible then
+      PanelProgress.Visible := PanelProgressVisible;
+    if PanelProgressVisible then
+      H := H + PanelProgress.Height;
+    PanelProgressTotalVisible := (JobProgressView.Jobs.Count > 1) and not JobProgressView.Finished;
+    if PanelProgressTotalVisible <> PanelProgressTotal.Visible then
+      PanelProgressTotal.Visible := PanelProgressTotalVisible;
+    if PanelProgressTotalVisible then
+      H := H + PanelProgressTotal.Height;
+    Constraints.MinHeight := H;
+    PanelLogVisible := MemoLog.Lines.Count > 0;
+    if PanelLogVisible <> PanelLog.Visible then
+      PanelLog.Visible := PanelLogVisible;
+    if PanelLogVisible then
+      H := H + Scale96ToScreen(MemoLogHeight);
+    if PanelText.Visible then
+      H := H + PanelText.Height;
+    if Height <> H then Height := H;
 end;
 
@@ -373 +389 @@
     if not JobProgressView.OwnerDraw then Show;
   end;
+  if Assigned(JobProgressView.CurrentJob) then begin
+    LabelText.Caption := JobProgressView.CurrentJob.Progress.Text;
+    if LabelText.Caption <> '' then begin
+      PanelText.Visible := True;
+      UpdateHeight;
+    end;
+  end;
 end;
 
@@ -394 +417 @@
   var CloseAction: TCloseAction);
 begin
-  ListViewJobs.Clear;
 end;
 
@@ -407 +429 @@
 
   end;
+end;
+
+procedure TFormJobProgressView.ReloadJobList;
+begin
+  // Workaround for not showing first line
+  //Form.ListViewJobs.Items.Count := Jobs.Count + 1;
+  //Form.ListViewJobs.Refresh;
+
+  if ListViewJobs.Items.Count <> JobProgressView.Jobs.Count then
+    ListViewJobs.Items.Count := JobProgressView.Jobs.Count;
+  ListViewJobs.Refresh;
+  Application.ProcessMessages;
+  UpdateHeight;
+end;
+
+procedure TFormJobProgressView.FormShow(Sender: TObject);
+begin
+  ReloadJobList;
+end;
+
+procedure TFormJobProgressView.FormHide(Sender: TObject);
+begin
+  JobProgressView.Jobs.Clear;
+  ReloadJobList;
 end;
 
@@ -489 +535 @@
 end;
 
-procedure TJobProgressView.ReloadJobList;
-begin
-  UpdateHeight;
-  // Workaround for not showing first line
-  Form.ListViewJobs.Items.Count := Jobs.Count + 1;
-  Form.ListViewJobs.Refresh;
-
-  if Form.ListViewJobs.Items.Count <> Jobs.Count then
-    Form.ListViewJobs.Items.Count := Jobs.Count;
-  Form.ListViewJobs.Refresh;
-  //Application.ProcessMessages;
-end;
-
 constructor TJobProgressView.Create(TheOwner: TComponent);
 begin
@@ -509 +542 @@
     Form.JobProgressView := Self;
   end;
-  Jobs := TObjectList.Create;
+  Jobs := TJobs.Create;
   Log := TStringList.Create;
   //PanelOperationsTitle.Height := 80;
@@ -535 +568 @@
     if FMax < 1 then FMax := 1;
     if FValue >= FMax then FValue := FMax;
+  finally
+    FLock.Release;
+  end;
+end;
+
+procedure TProgress.SetText(AValue: string);
+begin
+  try
+    FLock.Acquire;
+    if FText = AValue then Exit;
+    FText := AValue;
   finally
     FLock.Release;