/
CalcLoadFrm.pas
230 lines (204 loc) · 5.44 KB
/
CalcLoadFrm.pas
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unit CalcLoadFrm;
interface
uses
Forms, CalcObj,
Controls, ComCtrls, ExtCtrls, Classes, StdCtrls;
type
TFrmLoad = class(TForm)
UpDwnDigits: TUpDown;
EdtDigits: TEdit;
LblDigits: TLabel;
GrpBxLoad: TGroupBox;
EdtPower: TEdit;
LblPower: TLabel;
LblCurrent: TLabel;
CmbBxVoltage: TComboBox;
LblVoltage: TLabel;
EdtCurrent: TEdit;
CmbBxPF: TComboBox;
LblCos: TLabel;
LblFi: TLabel;
RdGrpPhaseCount: TRadioGroup;
RdGrpCurrentSort: TRadioGroup;
BtnOK: TButton;
BtnHelp: TButton;
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure imHelpClick(Sender: TObject);
procedure BtnHelpClick(Sender: TObject);
procedure BtnOKClick(Sender: TObject);
procedure EdtPowerChange(Sender: TObject);
procedure EdtCurrentChange(Sender: TObject);
procedure CmbBxPFChange(Sender: TObject);
procedure CmbBxVoltageChange(Sender: TObject);
procedure RdGrpCurrentSortClick(Sender: TObject);
procedure RdGrpPhaseCountClick(Sender: TObject);
procedure EdtDigitsChange(Sender: TObject);
procedure EdtPowerEnter(Sender: TObject);
procedure EdtCurrentEnter(Sender: TObject);
procedure imCloseClick(Sender: TObject);
private
CalcObj: TCalcPwrCrnt;
procedure UpdateCtrl(Value: TValue);
procedure UpdatePhaseCount(APhaseCount: TPhaseCount);
procedure UpdateCurrentSort;
public
{ Public declarations }
end;
var
FrmLoad: TFrmLoad;
implementation
{$R *.DFM}
const
PowerHints: packed array[TCurrentSort] of string =
('Ìîùíîñòü íàãðóçêè â êèëîÂàòòàõ','Àêòèâíàÿ ìîùíîñòü â êèëîÂàòòàõ');
CurrentHints: packed array[TPhaseCount] of string =
('Âåëè÷èíà òîêà â Àìïåðàõ','Ôàçíûé òîê â Àìïåðàõ');
VoltageHints: packed array[TPhaseCount] of string =
('Íàïðÿæåíèå â Âîëüòàõ','Ëèíåéíîå íàïðÿæåíèå â Âîëüòàõ');
HELP_CONTENTS = 3;
procedure TFrmLoad.FormCreate(Sender: TObject);
var
Ctrls: TValue;
begin
CalcObj := TCalcPwrCrnt.Create(380,csAC,pcThree,3);
with CalcObj do
begin
OnCalculate := UpdateCtrl
end;
for Ctrls := Low(TValue) to High(TValue) do
UpdateCtrl(Ctrls)
end;
procedure TFrmLoad.FormClose(Sender: TObject; var Action: TCloseAction);
begin
CalcObj.Free
end;
procedure TFrmLoad.imHelpClick(Sender: TObject);
begin
Application.HelpCommand(HELP_CONTENTS,0)
end;
procedure TFrmLoad.BtnHelpClick(Sender: TObject);
begin
Application.HelpCommand(HELP_CONTENTS,0)
end;
procedure TFrmLoad.BtnOKClick(Sender: TObject);
begin
FrmLoad.Close
end;
procedure TFrmLoad.EdtPowerChange(Sender: TObject);
begin
with CalcObj do
begin
EPower := EdtPower.Text;
Calculate
end
end;
procedure TFrmLoad.EdtCurrentChange(Sender: TObject);
begin
with CalcObj do
begin
Current := EdtCurrent.Text;
Calculate
end
end;
procedure TFrmLoad.CmbBxPFChange(Sender: TObject);
begin
with CalcObj do
begin
PowerFactor := CmbBxPF.Text;
Calculate
end
end;
procedure TFrmLoad.CmbBxVoltageChange(Sender: TObject);
begin
with CalcObj do
begin
Voltage := CmbBxVoltage.Text;
Calculate
end
end;
procedure TFrmLoad.RdGrpCurrentSortClick(Sender: TObject);
begin
UpdateCurrentSort;
with CalcObj do
begin
CurrentSort := TCurrentSort(RdGrpCurrentSort.ItemIndex);
Calculate
end
end;
procedure TFrmLoad.RdGrpPhaseCountClick(Sender: TObject);
var
APhaseCount: TPhaseCount;
begin
APhaseCount := TPhaseCount(RdGrpPhaseCount.ItemIndex);
UpdatePhaseCount(APhaseCount);
with CalcObj do
begin
PhaseCount := APhaseCount;
Calculate
end
end;
procedure TFrmLoad.EdtDigitsChange(Sender: TObject);
begin
with CalcObj do
begin
Digits := UpDwnDigits.Position;
Calculate
end
end;
procedure TFrmLoad.UpdateCtrl(Value: TValue);
begin
with CalcObj do
case Value of
cvPower: EdtPower.Text := EPower;
cvCurrent: EdtCurrent.Text := Current;
cvVoltage: CmbBxVoltage.Text := Voltage;
cvPowerFactor: CmbBxPF.Text := PowerFactor;
cvCurrentSort:
begin
RdGrpCurrentSort.ItemIndex := ord(CurrentSort);
UpdateCurrentSort
end;
cvPhaseCount:
begin
RdGrpPhaseCount.ItemIndex := ord(PhaseCount);
UpdatePhaseCount(PhaseCount)
end;
cvDigits: UpDwnDigits.Position := Digits
end
end;
procedure TFrmLoad.EdtPowerEnter(Sender: TObject);
begin
CalcObj.PowerCalc := False;
EdtCurrent.BevelKind := bkTile;
EdtPower.BevelKind := bkNone
end;
procedure TFrmLoad.EdtCurrentEnter(Sender: TObject);
begin
CalcObj.PowerCalc := True;
EdtPower.BevelKind := bkTile;
EdtCurrent.BevelKind := bkNone
end;
procedure TFrmLoad.UpdatePhaseCount(APhaseCount: TPhaseCount);
begin
EdtCurrent.Hint := CurrentHints[APhaseCount];
CmbBxVoltage.Hint := VoltageHints[APhaseCount]
end;
procedure TFrmLoad.UpdateCurrentSort;
var
ACurrentSort: TCurrentSort;
begin
ACurrentSort := TCurrentSort(RdGrpCurrentSort.ItemIndex);
RdGrpPhaseCount.Enabled := Boolean(ACurrentSort);
CmbBxPF.Enabled := Boolean(ACurrentSort);
EdtPower.Hint := PowerHints[ACurrentSort];
if ACurrentSort = csDC then
UpdatePhaseCount(pcSingle)
else
UpdatePhaseCount(TPhaseCount(RdGrpPhaseCount.ItemIndex))
end;
procedure TFrmLoad.imCloseClick(Sender: TObject);
begin
Close
end;
end.