mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-06-07 21:58:20 +02:00
Refactoring TTaskDialog:
- expose Dialogs.TTaskDialog.ParentWindow as reado only property (needed in TLCLTaskDialog.Execute) - furhter implement adding controls at runtime to TLCLTaskDialog - it compiles, but still not functional.
This commit is contained in:
parent
4d40d3f77a
commit
61fefaa794
@ -629,6 +629,7 @@ type
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FFooterText: TTranslateString;
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FMainIcon: TTaskDialogIcon;
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FModalResult: TModalResult;
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FParentWindow: HWND;
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FRadioButton: TTaskDialogRadioButtonItem;
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FRadioButtons: TTaskDialogButtons;
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FText: TTranslateString;
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@ -645,10 +646,11 @@ type
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function DoExecute(ParentWnd: HWND): Boolean; dynamic;
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procedure DoOnButtonClicked(AModalResult: Integer; var ACanClose: Boolean); dynamic;
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public
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FWidth: Integer; //ToDo: make this a readonly property, so we can use it in the TaskDlgEmulation unit.
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property ParentWindow: HWND read FParentWindow;
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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function Execute: Boolean; overload; dynamic;
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@ -228,6 +228,7 @@ const
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begin
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//Current goal of refactoring: replace all this with:
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//Result := TWSTaskDialogClass(WidgetSetClass).Execute(Self);
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FParentWindow := ParentWnd;
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FillChar(TaskDlg, SizeOf(LCLTaskDialog.TTaskDialog), 0);
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@ -24,6 +24,11 @@ type
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private
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/// the Task Dialog structure which created the form
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FDlg: TTaskDialog;
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FRadioRes: Integer;
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FVerifyCheck: Boolean;
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FVerifyChecked: Boolean;
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Rad: array of TRadioButton;
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protected
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procedure HandleEmulatedButtonClicked(Sender: TObject);
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procedure SetupControls;
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@ -42,6 +47,9 @@ type
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Edit: TEdit;
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/// the Task Dialog optional checkbox
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Verif: TCheckBox;
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property VerifyChecked: Boolean read FVerifyCheck write FVerifyChecked;
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property RadioRes: Integer read FRadioRes;
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end;
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@ -84,12 +92,57 @@ end;
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type
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TLCLTaskDialogIcon = (
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tiBlank, tiWarning, tiQuestion, tiError, tiInformation, tiNotUsed, tiShield);
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TLCLTaskDialogFooterIcon = (
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tfiBlank, tfiWarning, tfiQuestion, tfiError, tfiInformation, tfiShield);
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const
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LCL_IMAGES: array[TLCLTaskDialogIcon] of Integer = (
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0, idDialogWarning, idDialogConfirm, idDialogError, idDialogInfo, 0, idDialogShield);
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LCL_FOOTERIMAGES: array[TLCLTaskDialogFooterIcon] of Integer = (
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0, idDialogWarning, idDialogConfirm, idDialogError, idDialogInfo, idDialogShield);
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const
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FirstButtonIndex = 100;
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FirstRadioButtonIndex = 200;
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TD_BTNMOD: array[TTaskDialogCommonButton] of Integer = (
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mrOk, mrYes, mrNo, mrCancel, mrRetry, mrAbort);
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type
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/// internal type used for Unicode string storage
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WS = WideString;
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function _WS(const aString: string): WS;
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begin
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Result := UTF8Decode(aString);
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end;
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function CR(const aText: string): string;
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begin
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if pos('\n', aText) = 0 then
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result := aText else
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result := StringReplace(aText, '\n', #10, [rfReplaceAll]);
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end;
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function TD_BTNS(button: TTaskDialogCommonButton): pointer;
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begin
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case button of
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tcbOK: result := @rsMbOK;
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tcbYes: result := @rsMbYes;
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tcbNo: result := @rsMbNo;
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tcbCancel: result := @rsMbCancel;
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tcbRetry: result := @rsMbRetry;
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tcbClose: result := @rsMbClose;
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end;
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end;
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{ -------------- }
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function ExecuteLCLTaskDialog(const ADlg: TTaskDialog): Boolean;
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var
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DlgForm: TLCLTaskDialog;
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@ -107,17 +160,55 @@ end;
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constructor TLCLTaskDialog.CreateNew(AOwner: TComponent; Num: Integer);
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begin
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inherited CreateNew(AOwner, Num);
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Rad := nil;
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KeyPreview := True;
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end;
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function TLCLTaskDialog.Execute: Boolean;
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var
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mRes: Integer;
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mRes, I: Integer;
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aParent: HWND;
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begin
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SetupControls;
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aParent := FDlg.ParentWindow;
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//set form parent
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if (aParent <> 0) then
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for I := 0 to Screen.CustomFormCount-1 do
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if Screen.CustomForms[I].Handle = aParent then
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begin
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PopupParent := Screen.CustomForms[I];
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Break;
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end;
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if not Assigned(PopupParent) then
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PopupParent := Screen.ActiveCustomForm;
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if Assigned(PopupParent) then
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PopupMode := pmExplicit;
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mRes := ShowModal;
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Result := (mRes > 0);
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//ToDo implement this
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(*
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if Combo<>nil then begin
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SelectionRes := Combo.ItemIndex;
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Query := Dialog.Form.Combo.Text;
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end
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else
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if Dialog.Form.Edit<>nil then
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Query := Dialog.Form.Edit.Text;
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*)
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if Verif<>nil then
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FVerifyChecked := Verif.Checked;
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FRadioRes := 0;
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for i := 0 to high(Rad) do
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if Rad[i].Checked then
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FRadioRes := i+FirstRadioButtonIndex;
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end;
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procedure TLCLTaskDialog.HandleEmulatedButtonClicked(Sender: TObject);
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@ -162,6 +253,19 @@ begin
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end;
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end;
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function TF_FOOTERICON(const aIcon: TTaskDialogIcon): TLCLTaskDialogFooterIcon;
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begin
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case aIcon of
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tdiWarning: Result := tfiWarning;
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tdiError: Result := tfiError;
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tdiInformation: Result := tfiInformation;
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tdiShield: Result := tfiShield;
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tdiQuestion: Result := tfiQuestion;
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else
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Result := tfiBlank;
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end;
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end;
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function IconMessage(Icon: TLCLTaskDialogIcon): string;
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begin
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@ -179,29 +283,130 @@ end;
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procedure TLCLTaskDialog.SetupControls;
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var
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//TaskDlg: LCLTaskDialog.TTaskDialog;
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DefRB, aButtonDef: TModalResult;
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aRadioDef, aButtonDef: TModalResult;
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B: TTaskDialogBaseButtonItem;
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ButtonID: Integer;
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Buttons, TaskDlgRadios, Title, Inst, Content,
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TaskDlgInfoCollapse, TaskDlgInfo, TaskDlgFooter,
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TaskDlgVerify: TTranslateString;
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ARadioOffset, FontHeight, aWidth, IconBorder, X, Y: integer;
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Buttons, Radios, Title, Inst, Content,
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TaskDlgInfoCollapse, Info, Footer,
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Verify, Selection: TTranslateString;
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ARadioOffset, FontHeight, aWidth, IconBorder, X, Y, i, XB: integer;
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aCommonButtons: TTaskDialogCommonButtons;
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Panel: TPanel;
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Par: TWinControl;
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aDialogIcon: TLCLTaskDialogIcon;
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Image: TImage;
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const
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FirstButtonIndex = 100;
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FirstRadioButtonIndex = 200;
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TD_BTNMOD: array[TTaskDialogCommonButton] of Integer = (
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mrOk, mrYes, mrNo, mrCancel, mrRetry, mrAbort);
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CommandLink: TBitBtn;
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aHint: String;
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List: TStringListUTF8Fast;
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CurrTabOrder: TTabOrder;
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Btn: TTaskDialogCommonButton;
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function AddLabel(Text: string; BigFont: boolean): TLabel;
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var R: TRect;
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W: integer;
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begin
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if Text = '' then
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exit(nil);
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result := TLabel.Create(Self);
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result.Parent := Par;
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result.WordWrap := true;
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if BigFont then
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begin
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if (tfEmulateClassicStyle in FDlg.Flags) then
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begin
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result.Font.Height := FontHeight-2;
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result.Font.Style := [fsBold]
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end
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else
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begin
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result.Font.Height := FontHeight-4;
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result.Font.Color := clHighlight;
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end;
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end
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else
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result.Font.Height := FontHeight;
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result.AutoSize := false;
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R.Left := 0;
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R.Top := 0;
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W := aWidth-X-8;
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R.Right := W;
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R.Bottom := result.Height;
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LCLIntf.DrawText(result.Canvas.Handle,PChar(Text),Length(Text),R,DT_CALCRECT or DT_WORDBREAK);//lazarus does not return box height on OSX (Lazarus bug), the height is stored in the rect in all cases, so we don't need to use the result
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result.SetBounds(X,Y,W,R.Bottom);
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result.Caption := Text;
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inc(Y,R.Bottom+16);
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end;
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function NoCR(const aText: string): string;
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var i: integer;
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begin
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result := aText;
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aHint := '';
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i := pos('\n',result);
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if i>0 then begin
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aHint := CR(copy(result,i+2,maxInt));
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SetLength(result,i-1);
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end;
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end;
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function AddButton(const s: string; ModalResult: integer): TButton;
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var
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WB: integer;
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begin
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WB := Canvas.TextWidth(s)+52;
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dec(XB,WB);
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if XB<X shr 1 then begin
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XB := aWidth-WB;
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inc(Y,32);
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end;
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result := TButton.Create(Self);
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result.Parent := Par;
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if (tfEmulateClassicStyle in FDlg.Flags) then
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result.SetBounds(XB,Y,WB-10,22)
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else
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result.SetBounds(XB,Y,WB-12,28);
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result.Caption := s;
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result.ModalResult := ModalResult;
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result.TabOrder := CurrTabOrder;
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result.OnClick := @HandleEmulatedButtonClicked;
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case ModalResult of
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mrOk: begin
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result.Default := true;
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if aCommonButtons=[tcbOk] then
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result.Cancel := true;
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end;
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mrCancel: result.Cancel := true;
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end;
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if ModalResult=aButtonDef then
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ActiveControl := result;
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end;
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procedure AddBevel;
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var
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BX: integer;
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begin
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with TBevel.Create(Self) do begin
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Parent := Par;
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if (Image<>nil) and (Y<Image.Top+Image.Height) then
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BX := X else
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BX := 2;
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SetBounds(BX,Y,aWidth-BX-2,2);
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end;
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inc(Y,16);
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end;
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begin
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if FDlg.RadioButtons.DefaultButton<> nil then
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DefRB := FDlg.RadioButtons.DefaultButton.Index
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aRadioDef := FDlg.RadioButtons.DefaultButton.Index
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else
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DefRB := 0;
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aRadioDef := 0;
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if FDlg.Buttons.DefaultButton<>nil then
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aButtonDef := FDlg.Buttons.DefaultButton.ModalResult
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else
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@ -210,17 +415,22 @@ begin
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Buttons := '';
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for B in FDlg.Buttons do
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Buttons := Buttons + B.Caption + #10;
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TaskDlgRadios := '';
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Radios := '';
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for B in FDlg.RadioButtons do
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TaskDlgRadios := TaskDlgRadios + B.Caption + #10;
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Radios := Radios + B.Caption + #10;
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//ToDo
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//This field/parameter is currently not used in Dialogs.TTaskDialog and not passed so we cannot initialize it properly yet
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Selection := '';
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Title := FDlg.Caption;
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Inst := FDlg.Title;
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Content := FDlg.Text;
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TaskDlgInfoCollapse := FDlg.ExpandButtonCaption;
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TaskDlgInfo := FDlg.ExpandedText;
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TaskDlgFooter := FDlg.FooterText;
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TaskDlgVerify := FDlg.VerificationText;
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Info := FDlg.ExpandedText;
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Footer := FDlg.FooterText;
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Verify := FDlg.VerificationText;
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FVeriFyChecked := (tfVerificationFlagChecked in FDlg.Flags);
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aCommonButtons := FDlg.CommonButtons;
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@ -319,6 +529,228 @@ begin
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Y := IconBorder;
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end;
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// add main texts (Instruction, Content, Information)
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Element[tdeMainInstruction] := AddLabel(Inst, true);
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Element[tdeContent] := AddLabel(Content, false);
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if (Info <> '') then
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// no information collapse/expand yet: it's always expanded
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Element[tdeExpandedInfo] := AddLabel(Info, false);
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// add radio buttons
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if Radios<>'' then
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begin
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{$IFDEF MSWINDOWS}
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if WidgetSet.GetLCLCapability(lcNativeTaskDialog) = LCL_CAPABILITY_NO then
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ARadioOffset := 1
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else
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ARadioOffset := 0;
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{$ELSE}
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ARadioOffset := 1;
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{$ENDIF}
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with TStringList.Create do
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try
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Text := SysUtils.trim(Radios);
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SetLength(Rad,Count);
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for i := 0 to Count-1 do begin
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Rad[i] := TRadioButton.Create(Self);
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with Rad[i] do begin
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Parent := Par;
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AutoSize := False;
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SetBounds(X+16,Y,aWidth-32-X, (6-FontHeight) + ARadioOffset);
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Caption := NoCR(Strings[i]);
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if aHint<>'' then begin
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ShowHint := true;
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Hint := aHint; // note shown as Hint
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end;
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inc(Y,Height + ARadioOffset);
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if not (tfNoDefaultRadioButton in FDlg.Flags) and ((i=0) or (i=aRadioDef)) then
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Checked := true;
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end;
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end;
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inc(Y,24);
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finally
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Free;
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end;
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end;
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// add command links buttons
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if (tfUseCommandLinks in FDlg.Flags) and (Buttons<>'') then
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with TStringList.Create do
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try
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inc(Y,8);
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Text := SysUtils.trim(Buttons);
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for i := 0 to Count-1 do begin
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CommandLink := TBitBtn.Create(Self);
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with CommandLink do begin
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Parent := Par;
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Font.Height := FontHeight-3;
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if (tfEmulateClassicStyle in FDlg.Flags) then
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SetBounds(X,Y,aWidth-10-X,40) else
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SetBounds(X,Y,aWidth-16-X,40);
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Caption := NoCR(Strings[i]);
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if aHint<>'' then begin
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ShowHint := true;
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Hint := aHint; // note shown as Hint
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end;
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inc(Y,Height+2);
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ModalResult := i+FirstButtonIndex;
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OnClick := @HandleEmulatedButtonClicked;
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if ModalResult=aButtonDef then
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ActiveControl := CommandLink;
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if (tfEmulateClassicStyle in FDlg.Flags) then begin
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Font.Height := FontHeight - 2;
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Font.Style := [fsBold]
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end;
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if (tfEmulateClassicStyle in FDlg.Flags) then begin
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Margin := 7;
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Spacing := 7;
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end else begin
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Margin := 24;
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Spacing := 10;
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end;
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if not (tfUseCommandLinksNoIcon in FDlg.Flags) then
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begin
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Images := LCLGlyphs;
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ImageIndex := LCLGlyphs.GetImageIndex('btn_arrowright');
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end;
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end;
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end;
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inc(Y,24);
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finally
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Free;
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end;
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(*
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This needs expanding of TTaskDialogFlags and a new field Content in TTaskDialog.
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Basically this code was never excuted from Dialogs.TTaskDialog
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// add selection list or query editor
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if (Selection <> '') then
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begin
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List := TStringListUTF8Fast.Create;
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try
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Combo := TComboBox.Create(self);
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with Combo do begin
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Parent := Par;
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SetBounds(X,Y,aWidth-32-X,22);
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if (tfQuery in FDlg.Flags) then
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Style := csDropDown
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else
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Style := csDropDownList;
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List.Text := trim(Selection);
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Items.Assign(List);
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ItemIndex := List.IndexOf(Query);
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if (ItemIndex=-1) and (Style=csDropDown) then
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Text := Query;
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if tdfQueryFieldFocused in aFlags then
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Dialog.Form.ActiveControl := Dialog.Form.Combo;
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end;
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inc(Y,42);
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finally
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List.Free;
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end;
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end
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else
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if tfQuery in aFlags then
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begin
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Dialog.Form.Edit := TEdit.Create(Dialog.Form);
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with Dialog.Form.Edit do
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begin
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Parent := Par;
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SetBounds(X,Y,aWidth-16-X,22);
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Text := Query;
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if tdfQueryMasked in aFlags then
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PasswordChar := '*';
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end;
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if tdfQueryFieldFocused in aFlags then
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ActiveControl := Form.Edit;
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inc(Y,42);
|
||||
end;
|
||||
|
||||
*)
|
||||
|
||||
|
||||
// from now we won't add components to the white panel, but to the form
|
||||
Panel.Height := Y;
|
||||
Par := Self;
|
||||
|
||||
|
||||
|
||||
// add buttons and verification checkbox
|
||||
if (aCommonButtons=[]) or (Verify<>'') or
|
||||
((Buttons<>'') and not (tfUseCommandLinks in FDlg.Flags)) then
|
||||
begin
|
||||
CurrTabOrder := Panel.TabOrder;
|
||||
inc(Y, 16);
|
||||
XB := aWidth;
|
||||
if not (tfUseCommandLinks in FDlg.Flags) then
|
||||
with TStringList.Create do
|
||||
try
|
||||
Text := SysUtils.trim(Buttons);
|
||||
for i := Count-1 downto 0 do
|
||||
AddButton(Strings[i],i+FirstButtonIndex);
|
||||
finally
|
||||
Free;
|
||||
end;
|
||||
for Btn := high(TTaskDialogCommonButton) downto low(TTaskDialogCommonButton) do
|
||||
if (Btn in aCommonButtons) then
|
||||
AddButton(TD_Trans(LoadResString(TD_BTNS(Btn))), TD_BTNMOD[Btn]);
|
||||
if Verify<>'' then
|
||||
begin
|
||||
Verif := TCheckBox.Create(Self);
|
||||
with Verif do
|
||||
begin
|
||||
Parent := Par;
|
||||
if X+16+Canvas.TextWidth(Verify)>XB then begin
|
||||
inc(Y,32);
|
||||
XB := aWidth;
|
||||
end;
|
||||
SetBounds(X,Y,XB-X,24);
|
||||
Caption := Verify;
|
||||
Checked := FVerifyChecked;
|
||||
end;
|
||||
end;
|
||||
inc(Y,36);
|
||||
end
|
||||
else
|
||||
XB := 0;
|
||||
|
||||
|
||||
|
||||
// add footer text with optional icon
|
||||
if (Footer <> '') then
|
||||
begin
|
||||
if XB<>0 then
|
||||
AddBevel
|
||||
else
|
||||
inc(Y,16);
|
||||
if (LCL_FOOTERIMAGES[TF_FOOTERICON(FDlg.FooterIcon)]<>0) then
|
||||
begin
|
||||
Image := TImage.Create(Self);
|
||||
Image.Parent := Par;
|
||||
Image.Images := DialogGlyphs;
|
||||
Image.ImageWidth := 16;
|
||||
Image.ImageIndex := DialogGlyphs.DialogIcon[LCL_FOOTERIMAGES[TF_FOOTERICON(FDlg.FooterIcon)]];
|
||||
Image.Stretch := True;
|
||||
Image.StretchOutEnabled := False;
|
||||
Image.Proportional := True;
|
||||
Image.Center := True;
|
||||
Image.SetBounds(24,Y,16,16);
|
||||
X := 40+Image.Width;
|
||||
end else
|
||||
begin
|
||||
X := 24;
|
||||
end;
|
||||
Element[tdeFooter] := AddLabel(Footer, false);
|
||||
end;
|
||||
|
||||
|
||||
ClientHeight := Y;
|
||||
|
||||
end;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user