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ProgressForm.pas
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ProgressForm.pas
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unit ProgressForm;
{xDEFINE DISABLE_MODAL_COMMAND_WATCHING}
interface
uses
numbers, tickcount, Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, ExceptionsX,orderlyinit,
Dialogs, StdCtrls, ComCtrls, FormBase, GlassControls,exe, commandprocessor,
ExtCtrls, generics.collections.fixed, debug, FrameHostPanel, FormBGThreadWatcher,
Vcl.WinXCtrls, typex, betterobject;
const
PB_HEIGHT = 14;
LBL_HEIGHT = 32;
type
TfrmProgress = class(TfrmBase)
PB: TProgressBar;
TimerWatchCommand: TTimer;
TimerWatchQueue: TTimer;
Timer1: TTimer;
Timer2: TTimer;
lbl: TLabel;
panBG: TPanel;
TimerWatchList: TTimer;
procedure frmBaseCreate(Sender: TObject);
procedure frmBaseClose(Sender: TObject; var Action: TCloseAction);
procedure frmBaseDestroy(Sender: TObject);
procedure TimerWatchCommandTimer(Sender: TObject);
procedure TimerWatchQueueTimer(Sender: TObject);
procedure frmBaseDblClick(Sender: TObject);
procedure frmBaseFirstActivation(Sender: TObject);
procedure Timer1Timer(Sender: TObject);
procedure Timer2Timer(Sender: TObject);
procedure frmBaseActivate(Sender: TObject);
procedure TimerWatchListTimer(Sender: TObject);
private
FcmdWatching: TCommand;
FQueueWatching: TCommandProcessor;
Fwatchlist: TCommandList<TCommand>;
FWatchListHolder: IHolder<TCommandList<Tcommand>>;
fReferences: integer;
FPBs: TList<TProgressBar>;
FLabels: TList<TLabel>;
FOriginalHeight: integer;
timeout: ticker;
procedure AddPB;
procedure RemovePB;
procedure SetPBcount(cnt: ni);
function GetCmdWatching: TCommand;
procedure SetCmdWatching(const Value: TCommand);
procedure AdjustFormHeight;
{ Private declarations }
public
tmStartWatching: ticker;
bg: TfrmBGThreadWatcher;
FDestroyItemsInListWhileWaiting: boolean;
FDestroyItemsInListHolderWhileWaiting: boolean;
constructor Create(aowner: TComponent);reintroduce;virtual;
{ Public declarations }
procedure ExeConsole(ss: TConsolecaptureStatus; sStatus: string);
// procedure WatchSingleCommand(cmd: TCommand);
function WatchSingleCommand(bTakeOwnerShip: boolean; cmd: TCommand; timeout: ticker = 0): boolean;overload;
function WatchSingleCommand(bTakeOwnership: boolean; level: ni; cmd: TCommand; timeout: ticker = 0; fin: TProc = nil): boolean;overload;
procedure WatchSingleCommand_NonModal(cmd: TCommand);
procedure WatchCommandQueue(q: TCommandProcessor);
procedure WatchCommandList(l: TCommandList<TCommand>; destroycommandswhilewatiging: boolean);overload;
procedure WatchCommandList(lh: IHolder<TCommandList<TCommand>>; destroycommandswhilewatiging: boolean);overload;
procedure EnableCommandtimer(var msg: TMessage);message WM_USER+1;
procedure EnableCommandQueuetimer(var msg: TMessage);message WM_USER+2;
procedure EnableCommandListtimer(var msg: TMessage);message WM_USER+3;
function beginProgress: nativeint;
procedure EndProgress(bNoHide: boolean = false);
function CurrentPB: TProgressBar;
property CmdWatching: TCommand read GetCmdWatching write SetCmdWatching;
procedure RefreshAllBars;
procedure SyncBarsFromCommandList(cl: IHolder<TCommandList<TCommand>>);
// function WatchCommandList(bTakeOwnership: boolean; cl: TCommandList<TCommand>; timeout: ticker=0): boolean;
end;
var
frmProgress: TfrmProgress = nil;
procedure ShowProgress(sStatus: string; min,max,pos: integer);overload;
procedure ShowProgress(pos,max: integer);overload;
//procedure HideProgress;
function BeginProgress(): ni;
procedure EndProgress();
function WatchSingleCommand(bTakeOwnership: boolean; cmd: TCommand; timeout: ticker = 0): boolean;overload;
function WatchCommandList(bTakeownership: boolean; cl: TCommandList<Tcommand>; timeout: ticker=0): boolean;overload;
function WatchCommandList(bTakeownership: boolean; cl: IHolder<TCommandList<Tcommand>>; timeout: ticker=0): boolean;overload;
implementation
{$R *.dfm}
function WatchCommandList(bTakeownership: boolean; cl: IHolder<TCommandList<Tcommand>>; timeout: ticker=0): boolean;overload;
begin
if frmProgress = nil then
frmProgress := TfrmProgress.create(application);
frmProgress.WatchCommandList(cl, bTakeownership);
result := true;
end;
function WatchCommandList(bTakeownership: boolean; cl: TCommandList<Tcommand>; timeout: ticker=0): boolean;
begin
if frmProgress = nil then
frmProgress := TfrmProgress.create(application);
frmProgress.WatchCommandList(cl, bTakeownership);
result := true;
end;
function WatchSingleCommand(bTakeOwnership: boolean; cmd: TCommand; timeout: ticker = 0): boolean;overload;
begin
if frmProgress = nil then
frmProgress := TfrmProgress.create(application);
result := frmProgress.WatchSingleCommand(bTakeOwnership,cmd,timeout);
end;
function BeginProgress(): ni;
begin
if frmProgress = nil then
frmProgress := TfrmProgress.create(application);
if not frmProgress.visible then begin
frmProgress.show;
end;
frmProgress.SetFocus;
result := frmProgress.BeginProgress();
end;
procedure EndProgress();
begin
frmProgress.EndProgress();
end;
procedure ShowProgress(pos,max: integer);
begin
ShowProgress('--', 0, max, pos);
end;
procedure ShowProgress(sStatus: string; min,max,pos: integer);
begin
if not assigned(frmProgress) then
application.createform(TfrmProgress, frmProgress);
if not frmProgress.visible then begin
frmProgress.show;
end;
frmProgress.SetFocus;
if sStatus <> '--' then
frmProgress.lbl.caption := sStatus;
frmProgress.currentpb.min := min;
frmProgress.currentpb.max := max;
frmProgress.currentpb.position := pos;
frmProgress.lbl.refresh;
frmProgress.refreshallbars;
frmProgress.refresh;
if (max = 1) and (pos=0) then begin
frmProgress.currentpb.Style := pbstMarquee;
end else begin
frmProgress.currentpb.style := pbstnormal;
end;
end;
procedure HideProgress;
begin
postmessage(frmProgress.Handle, WM_CLOSE, 0,0);
// frmProgress.visible := false;
end;
procedure TfrmProgress.AdjustFormHeight;
var
pb: TProgressbar;
pan_height: nativeint;
pbheight: nativeint;
begin
if not showing then
exit;
if panBG = nil then exit;
if panBG.visible = false then
pan_height := 0
else
pan_height := panBG.Height;
if fpbs.count < 1 then begin
self.clientheight := 150;
exit;
end;
pbheight := FPbs[FPbs.count-1].top + PB_HEIGHT+FPbs[0].left;
//(535-431) + ((5+(fpbs[0].height div 2)) * Fpbs.count);
if panBG.Visible then begin
if clientheight < (pbheight + 400) then begin
clientheight := pbheight+pan_height;
end else begin
panBG.Height := clientheight - pbHeight;
panBG.width := clientwidth;
panBG.Left := 0;
end;
end else begin
if clientheight > pbheight then
clientheight := pbheight
else if clientheight < pbheight then
clientheight := pbheight;
end;
// clientheight := PAN_HEIGHT;
end;
procedure TfrmProgress.AddPB;
var
pb: TProgressbar;
pan_height: nativeint;
pbheight: nativeint;
begin
if panBG.visible = false then
pan_height := 0
else
pan_height := panBG.Height;
var c := FPBS.count;
var lbl := TLabel.create(self);
lbl.parent := self;
lbl.width := fpbs[0].width;
lbl.height := LBL_HEIGHT;
lbl.anchors := fpbs[0].anchors;
lbl.left := fpbs[0].left;
lbl.top := fpbs[0].top + (c*(PB_HEIGHT+LBL_HEIGHT));
lbl.Caption := '...';
lbl.font := self.lbl.font;
FLabels.add(lbl);
pb := TProgressbar.create(self);
pb.parent := self;
pb.width := fpbs[0].width;
pb.height := PB_HEIGHT;
pb.anchors := fpbs[0].anchors;
pb.left := fpbs[0].left;
pb.top := fpbs[0].top + (c*(PB_HEIGHT+LBL_HEIGHT))+LBL_HEIGHT;
Fpbs.add(pb);
AdjustFormHeight;
refresh;
end;
function TfrmProgress.beginProgress: nativeint;
begin
inc(FReferences);
if FReferences > 1 then begin
AddPb();
end;
exit(fReferences);
end;
constructor TfrmProgress.Create(aowner: TComponent);
begin
inherited Create(aowner);
end;
function TfrmProgress.CurrentPB: TProgressBar;
begin
result := Fpbs[Fpbs.count-1];
end;
procedure TfrmProgress.EnableCommandListtimer(var msg: TMessage);
begin
TimerWatchListTimer(self);
end;
procedure TfrmProgress.EnableCommandQueuetimer(var msg: TMessage);
begin
TimerWatchQueueTimer(self);
end;
procedure TfrmProgress.EnableCommandtimer(var msg: TMessage);
begin
TimerWatchCommandTimer(self);
end;
procedure TfrmProgress.EndProgress(bNoHide: boolean = false);
begin
dec(FReferences);
if FReferences < 0 then begin
debug.log(self,'Progress form references less than ZERO!!!!', 'Error');
FReferences := 0;
end;
if FReferences > 0 then
RemovePB;
if not bNoHide then begin
if FReferences = 0 then begin
Hide();
end;
end;
end;
procedure TfrmProgress.ExeConsole(ss: TConsolecaptureStatus; sStatus: string);
var
sl: TStringlist;
begin
sl := tStringlist.create;
try
case ss of
ccStart: if not Showing then Show;
ccProgress: begin
if sStatus <> '' then begin
sl.text := sStatus;
lbl.caption := sl[sl.count-1];
end;
end;
end;
finally
sl.free;
end;
end;
procedure TfrmProgress.frmBaseActivate(Sender: TObject);
begin
inherited;
AdjustFormHeight;
end;
procedure TfrmProgress.frmBaseClose(Sender: TObject; var Action: TCloseAction);
begin
inherited;
Action := caHide;
timer1.Enabled := false;
timer2.Enabled := false;
TimerWatchCommand.enabled := false;
TimerWatchQueue.enabled := false;
end;
procedure TfrmProgress.frmBaseCreate(Sender: TObject);
begin
inherited frmBaseCreate(sender);
// inherited;
//stuff
FReferences := 0;
Fpbs := TList<TProgressBar>.create;
FLabels := TList<TLabel>.create;
pb.Height := 8;
Fpbs.add(pb);
FLabels.add(lbl);
FOriginalHeight := self.height;
FixLabelFlashing(lbl);
AddPB;
RemovePb;
end;
procedure TfrmProgress.frmBaseDblClick(Sender: TObject);
begin
panBG.Visible := not panBG.Visible;
if not panBG.Visible then
height := height - panBG.Height
else
height := height + panBG.Height;
if panBG.Visible then begin
bg := TfrmBGThreadWatcher.Create(self);
bg.Parent := panBG;
end else begin
bg.Free;
bg := nil;
end;
end;
procedure TfrmProgress.frmBaseDestroy(Sender: TObject);
begin
timer1.Enabled := false;
timer2.Enabled := false;
inherited FormDestroy(sender);
inherited;
frmProgress := nil;
FPbs.free;
FLabels.free;
end;
procedure TfrmProgress.frmBaseFirstActivation(Sender: TObject);
begin
self.panBG.Visible := false;
self.clientHeight := 72;
self.RecenterWindow;
timer1.Enabled := true;
end;
function TfrmProgress.GetCmdWatching: TCommand;
begin
Lock;
try
result:= FcmdWatching;
finally
Unlock;
end;
end;
procedure TfrmProgress.RefreshAllBars;
var
t: integer;
begin
for t:= 0 to componentcount-1 do begin
if components[t] is TProgressBar then begin
// TProgressBar(components[t]).invalidate;
TProgressBar(components[t]).Repaint;
end;
end;
end;
procedure TfrmProgress.RemovePB;
begin
FPbs[fpbs.count-1].free;
fpbs.delete(fpbs.count-1);
FLabels[FLabels.count-1].free;
FLabels.delete(FLabels.count-1);
end;
procedure TfrmProgress.SetCmdWatching(const Value: TCommand);
begin
Lock;
try
FcmdWatching := value;
finally
unlock;
end;
end;
procedure TfrmProgress.SetPBcount(cnt: ni);
begin
while FPBs.count < cnt do
AddPB;
while FPBs.count > cnt do
RemovePB;
end;
procedure TfrmProgress.SyncBarsFromCommandList(
cl: IHolder<TCommandList<TCommand>>);
begin
if cl = nil then
exit;
var l := cl.o.ToExecutingCommandListHolder;
var x := l.o;
var cnt := x.count;
if cl.o.Count < 2 then
cnt := 0;
SetPBcount(cnt+1);
var pc := cl.o.PercentComplete;
FPbs[0].Min := 0;
FPbs[0].Max := 1000;
FPbs[0].Position := round(pc*1000.0);
for var t := 1 to cnt do begin
var xx := x[t-1];
if xx <> nil then begin
FPbs[t].Smooth := true;
FPbs[t].Min := 0;
FPbs[t].Max := xx.StepCount;
FPbs[t].Position := greaterof(0, lesserof(xx.StepCount, xx.Step));
FLabels[t].Caption := xx.Status;
end;
end;
end;
procedure TfrmProgress.Timer1Timer(Sender: TObject);
begin
if not panBG.Visible then
height := height - panBG.Height
else
height := height + panBG.Height;
timer1.Enabled := false;
end;
procedure TfrmProgress.Timer2Timer(Sender: TObject);
begin
ADjustFormHeight;
end;
procedure TfrmProgress.TimerWatchCommandTimer(Sender: TObject);
begin
TimerWatchCommand.enabled := false;
Lock;
try
if cmdWatching = nil then
exit;
if cmdWatching.IsComplete or (timeout>0) and (gettimesince(tmStartWatching)>timeout) then begin
cmdWatching := nil;
ModalResult := mrOK;
end else begin
try
//Debug.ConsoleLog('currenpb='+inttostr(currentpb.top)+','+inttostr(currentpb.Left));
if not currentpb.Visible then
currentpb.visible := true;
currentpb.Min := 0;
currentpb.max := cmdWatching.StepCount;
currentpb.Position := cmdWatching.Step;
lbl.caption := cmdWatching.Status;
if cmdWatching.StepCount = 1 then begin
currentpb.Style := pbstMarquee;
end else begin
currentpb.style := pbstnormal;
end;
finally
TimerWatchCommand.enabled := true;
end;
end;
finally
Unlock;
end;
end;
procedure TfrmProgress.TimerWatchListTimer(Sender: TObject);
begin
TimerWatchList.enabled := false;
Lock;
try
if currentpb = nil then exit;
var w := FWatchList;
var wh := FWatchListHolder;
var dww := FDestroyItemsInListWhileWaiting;
if wh <> nil then begin
w := wh.o;
dww := FDestroyItemsInListHolderWhileWaiting;
end;
if w = nil then
exit;
if w.IsComplete then begin
{PASTED FROM BELOW!}
if dww then begin
w.lock;
try
for var tt:= 0 to w.Count-1 do begin
if (w[tt] <> nil) and (w[tt].IsComplete) then begin
w[tt].waitfor;
w[tt].free;
w[tt] := nil;
end;
end;
finally
w.unlock;
end;
end;
{^^^PASTED FROM BELOW!^^^}
w := nil;
ModalResult := mrOK;
end else begin
try
SyncBarsFromCommandList(FWatchListHolder);
if dww then begin
w.lock;
try
for var tt:= 0 to w.Count-1 do begin
if (w[tt] <> nil) and (w[tt].IsComplete) then begin
w[tt].waitfor;
w[tt].free;
w[tt] := nil;
end;
end;
finally
w.unlock;
end;
end;
lbl.caption := 'Waiting for commands...';
finally
TimerWatchList.enabled := true;
end;
end;
finally
Unlock;
end;
end;
procedure TfrmProgress.TimerWatchQueueTimer(Sender: TObject);
begin
TimerWatchQueue.enabled := false;
Lock;
try
if currentpb = nil then exit;
if FqueueWatching = nil then
exit;
if FqueueWatching.IsComplete then begin
FQueueWatching := nil;
ModalResult := mrOK;
end else begin
try
currentpb.Min := 0;
currentpb.max := FqueueWatching.commandcount;
currentpb.Position := FqueueWatching.completecount;
if (currentpb.max = 1) and (currentpb.position=0) then begin
frmProgress.currentpb.Style := pbstMarquee;
end else begin
frmProgress.currentpb.style := pbstnormal;
end;
lbl.caption := 'Waiting for commands...';
finally
TimerWatchQueue.enabled := true;
end;
end;
finally
Unlock;
end;
end;
procedure TfrmProgress.WatchCommandList(l: TCommandList<TCommand>; destroycommandswhilewatiging: boolean);
begin
{$IFNDEF DESIGN_TIME_PACKAGE}
mq.pause := true;
BeginProgress();
try
FWatchList := l;
FDestroyItemsInListWhileWaiting := destroycommandswhilewatiging;
PostMessage(self.handle, WM_USER+3, 0,0);
IF showing then hide;
showmodal;
finally
FqueueWatching := nil;
EndProgress();
Unlock;
mq.pause := false;
end;
{$ENDIF}
end;
procedure TfrmProgress.WatchCommandList(lh: IHolder<TCommandList<TCommand>>;
destroycommandswhilewatiging: boolean);
begin
mq.pause := true;
BeginProgress();
try
FWatchListholder := lh;
FDestroyItemsInListHolderWhileWaiting := destroycommandswhilewatiging;
PostMessage(self.handle, WM_USER+3, 0,0);
IF showing then
hide;
showmodal;
finally
FWatchListHolder := nil;
FqueueWatching := nil;
EndProgress();
Unlock;
mq.pause := false;
end;
end;
procedure TfrmProgress.WatchCommandQueue(q: TCommandProcessor);
begin
{$IFNDEF DESIGN_TIME_PACKAGE}
Lock;
BeginProgress();
try
FqueueWatching := q;
PostMessage(self.handle, WM_USER+2, 0,0);
//TimerWatchCommand.Enabled := true;
IF showing then hide;
showmodal;
finally
FqueueWatching := nil;
EndProgress();
Unlock;
end;
{$ENDIF}
end;
function TfrmProgress.WatchSingleCommand(bTakeOwnership: boolean; cmd: TCommand; timeout: ticker): boolean;
begin
result := WatchSingleCommand(bTakeOwnership,0,cmd,timeout,nil);
end;
function TfrmProgress.WatchSingleCommand(bTakeOwnership: boolean; level: ni; cmd: TCommand;
timeout: ticker; fin: TProc): boolean;
begin
result := true;
{$IFDEF DISABLE_MODAL_COMMAND_WATCHING}
WatchSingleCommand_nonModal(cmd);
exit;
{$ENDIF}
Lock;
BeginProgress();
try
if cmd = nil then
exit;
if cmd.fireforget then
raise Exception.create('You cannot watch a fireforget command');
cmdWatching := cmd;
if cmd.Fireforget then
raise EClassException.create('You tried to watch a fire-forget command, this is BAD!');
PostMessage(self.handle, WM_USER+1, 0,0);
//TimerWatchCommand.Enabled := true;
IF showing then hide;
tmStartWatching := getticker;
self.timeout := timeout;
if not showing then
showmodal;
result := cmd.waitfor(lesserof(timeout,1));
finally
if bTakeOwnership then cmd.free;
EndProgress(not result);
Unlock;
end;
end;
procedure TfrmProgress.WatchSingleCommand_NonModal(cmd: TCommand);
begin
if cmd.Fireforget then
raise EClassException.create('You tried to watch a fire-forget command, this is BAD!');
bringtofront;
if not showing then show;
while not cmd.IsComplete do begin
pb.Min := 0;
pb.max := cmd.StepCount;
pb.Position := cmd.Step;
lbl.caption := cmd.Status;
refresh;
sleep(300);
end;
end;
procedure oinit;
begin
frmProgress := nil;
{$IFNDEF DESIGN_TIME_PACKAGE}
// showmessage('progress form is being created');
// frmProgress := TfrmProgress.create(nil);
{$ENDIF}
end;
procedure ofinal;
begin
{$IFNDEF DESIGN_TIME_PACKAGE}
// showmessage('progress form is being destroyed');
// frmProgress.free;
{$ENDIF}
end;
initialization
init.RegisterProcs('ProgressForm', oinit, ofinal);
finalization
end.