| 1 | unit BaseWin;
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| 2 |
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| 3 | interface
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| 4 |
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| 5 | uses
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| 6 | ScreenTools, LCLIntf, LCLType, SysUtils, Classes, DrawDlg,
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| 7 | {$IFDEF DPI}Dpi.Graphics, Dpi.Controls, Dpi.Forms, Dpi.Common, System.UITypes{$ELSE}
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| 8 | Graphics, Controls, Forms{$ENDIF};
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| 9 |
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| 10 | type
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| 11 | TWindowMode = (wmNone, wmModal, wmPersistent, wmSubmodal);
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| 12 | TShowNewContent = procedure (NewMode: TWindowMode; HelpContext: string) of object;
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| 13 |
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| 14 | { TBufferedDrawDlg }
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| 15 |
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| 16 | TBufferedDrawDlg = class(TDrawDlg)
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| 17 | protected
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| 18 | FWindowMode: TWindowMode;
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| 19 | ModalFrameIndent: Integer;
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| 20 | HelpContext: string;
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| 21 | procedure ShowNewContent(NewMode: TWindowMode; ForceClose: Boolean = False);
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| 22 | procedure MarkUsedOffscreen(xMax, yMax: Integer);
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| 23 | procedure OffscreenPaint; virtual;
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| 24 | procedure VPaint; virtual;
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| 25 | procedure DoOnResize; override;
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| 26 | public
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| 27 | UserLeft: Integer;
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| 28 | UserTop: Integer;
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| 29 | UsedOffscreenWidth: Integer;
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| 30 | UsedOffscreenHeight: Integer;
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| 31 | Offscreen: TBitmap;
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| 32 | OffscreenUser: TForm;
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| 33 | constructor Create(AOwner: TComponent); override;
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| 34 | destructor Destroy; override;
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| 35 | procedure FormClose(Sender: TObject; var Action: TCloseAction);
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| 36 | procedure FormPaint(Sender: TObject);
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| 37 | procedure FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
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| 38 | procedure FormDeactivate(Sender: TObject);
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| 39 | procedure SmartUpdateContent(ImmediateUpdate: Boolean = False);
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| 40 | property WindowMode: TWindowMode read FWindowMode;
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| 41 | end;
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| 42 |
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| 43 | { TFramedDlg }
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| 44 |
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| 45 | TFramedDlg = class(TBufferedDrawDlg)
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| 46 | protected
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| 47 | CaptionLeft: Integer;
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| 48 | CaptionRight: Integer;
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| 49 | InnerWidth: Integer;
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| 50 | InnerHeight: Integer;
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| 51 | WideBottom: Boolean;
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| 52 | FullCaption: Boolean;
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| 53 | TexOverride: Boolean;
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| 54 | ModalIndication: Boolean;
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| 55 | procedure InitWindowRegion;
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| 56 | procedure VPaint; override;
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| 57 | procedure FillOffscreen(Left, Top, Width, Height: Integer);
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| 58 | procedure DoOnResize; override;
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| 59 | public
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| 60 | constructor Create(AOwner: TComponent); override;
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| 61 | procedure FormCreate(Sender: TObject);
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| 62 | procedure SmartInvalidate; override;
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| 63 | end;
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| 64 |
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| 65 | var
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| 66 | ShowNewContentProc: TShowNewContent;
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| 67 | MainFormKeyDown: TKeyEvent;
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| 68 |
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| 69 | const
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| 70 | NarrowFrame = 11;
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| 71 | WideFrame = 36;
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| 72 | SideFrame = 9;
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| 73 |
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| 74 | procedure CreateOffscreen(var Offscreen: TBitmap; Width, Height: Integer);
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| 75 | procedure ClearOffscreen(Offscreen: TBitmap);
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| 76 | function WindowModeMakePersistent(Mode: TWindowMode): TWindowMode;
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| 77 | procedure Register;
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| 78 |
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| 79 |
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| 80 | implementation
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| 81 |
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| 82 | uses
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| 83 | ButtonBase, Area;
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| 84 |
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| 85 | procedure ClearOffscreen(Offscreen: TBitmap);
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| 86 | begin
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| 87 | with Offscreen.Canvas do begin
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| 88 | Brush.Color := clBlack;
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| 89 | Brush.Style := TBrushStyle.bsSolid;
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| 90 | FillRect(0, 0, Offscreen.Width, OffScreen.Height);
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| 91 | Brush.Style := TBrushStyle.bsClear;
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| 92 | end;
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| 93 | end;
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| 94 |
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| 95 | function WindowModeMakePersistent(Mode: TWindowMode): TWindowMode;
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| 96 | begin
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| 97 | if Mode = wmModal then Result := wmSubmodal
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| 98 | else Result := wmPersistent;
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| 99 | end;
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| 100 |
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| 101 | procedure Register;
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| 102 | begin
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| 103 | RegisterNoIcon([TBufferedDrawDlg]);
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| 104 | RegisterNoIcon([TFramedDlg]);
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| 105 | end;
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| 106 |
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| 107 | constructor TBufferedDrawDlg.Create(AOwner: TComponent);
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| 108 | begin
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| 109 | BaseWin.CreateOffscreen(Offscreen, Width, Height);
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| 110 | OnClose := FormClose;
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| 111 | OnPaint := FormPaint;
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| 112 | OnKeyDown := FormKeyDown;
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| 113 | OnDeactivate := FormDeactivate;
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| 114 | inherited;
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| 115 | FWindowMode := wmNone;
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| 116 | HelpContext := 'CONCEPTS';
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| 117 | TitleHeight := WideFrame;
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| 118 | ModalFrameIndent := 45;
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| 119 | UserLeft := Screen.PrimaryMonitor.Left + (Screen.PrimaryMonitor.Width - Width) div 2;
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| 120 | UserTop := Screen.PrimaryMonitor.Top + (Screen.PrimaryMonitor.Height - Height) div 2;
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| 121 | end;
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| 122 |
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| 123 | destructor TBufferedDrawDlg.Destroy;
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| 124 | begin
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| 125 | FreeAndNil(Offscreen);
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| 126 | inherited;
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| 127 | end;
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| 128 |
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| 129 | procedure TBufferedDrawDlg.FormClose(Sender: TObject; var Action: TCloseAction);
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| 130 | begin
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| 131 | if FWindowMode = wmPersistent then begin
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| 132 | UserLeft := Left;
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| 133 | UserTop := Top;
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| 134 | end;
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| 135 | if OffscreenUser = Self then
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| 136 | OffscreenUser := nil;
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| 137 | end;
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| 138 |
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| 139 | procedure TBufferedDrawDlg.FormPaint(Sender: TObject);
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| 140 | begin
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| 141 | if OffscreenUser <> Self then
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| 142 | OffscreenPaint;
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| 143 | VPaint;
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| 144 | end;
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| 145 |
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| 146 | procedure TBufferedDrawDlg.FormKeyDown(Sender: TObject; var Key: Word;
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| 147 | Shift: TShiftState);
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| 148 | begin
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| 149 | if Key = VK_ESCAPE then begin
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| 150 | if TFormStateType.fsModal in FormState then
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| 151 | ModalResult := mrCancel;
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| 152 | end else
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| 153 | if Key = VK_RETURN then begin
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| 154 | if TFormStateType.fsModal in FormState then
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| 155 | ModalResult := mrOK;
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| 156 | end else
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| 157 | if Key = VK_F1 then begin
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| 158 | if Assigned(ShowNewContentProc) then
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| 159 | ShowNewContentProc(WindowModeMakePersistent(FWindowMode), HelpContext);
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| 160 | end else
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| 161 | if FWindowMode = wmPersistent then begin
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| 162 | if Assigned(MainFormKeyDown) then
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| 163 | MainFormKeyDown(Sender, Key, Shift);
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| 164 | end;
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| 165 | end;
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| 166 |
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| 167 | procedure TBufferedDrawDlg.FormDeactivate(Sender: TObject);
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| 168 | begin
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| 169 | if FWindowMode = wmSubmodal then
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| 170 | Close;
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| 171 | end;
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| 172 |
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| 173 | procedure TBufferedDrawDlg.OffscreenPaint;
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| 174 | begin
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| 175 | BaseWin.CreateOffscreen(Offscreen, Width, Height);
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| 176 | if (OffscreenUser <> nil) and (OffscreenUser <> Self) then
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| 177 | OffscreenUser.Update; // complete working with old owner to prevent rebound
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| 178 | OffscreenUser := Self;
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| 179 | end;
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| 180 |
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| 181 | procedure TBufferedDrawDlg.VPaint;
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| 182 | begin
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| 183 | BitBltCanvas(Canvas, 0, 0, ClientWidth, ClientHeight, Offscreen.Canvas, 0, 0);
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| 184 | end;
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| 185 |
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| 186 | procedure TBufferedDrawDlg.DoOnResize;
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| 187 | begin
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| 188 | inherited;
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| 189 | SmartUpdateContent;
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| 190 | end;
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| 191 |
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| 192 | procedure TBufferedDrawDlg.ShowNewContent(NewMode: TWindowMode;
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| 193 | ForceClose: Boolean);
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| 194 | begin
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| 195 | if Visible then begin
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| 196 | Assert((NewMode = wmModal) or (FWindowMode <> wmModal));
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| 197 | // don't make modal window non-modal
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| 198 | if (NewMode = wmModal) and (ForceClose or (FWindowMode <> wmModal)) then
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| 199 | begin // make modal
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| 200 | UserLeft := Left;
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| 201 | UserTop := Top;
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| 202 | Visible := False;
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| 203 | FWindowMode := NewMode;
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| 204 | ShowModal;
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| 205 | end
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| 206 | else if ForceClose then
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| 207 | begin // make modal
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| 208 | Visible := False;
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| 209 | FWindowMode := NewMode;
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| 210 | Left := UserLeft;
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| 211 | Top := UserTop;
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| 212 | Show;
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| 213 | end
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| 214 | else
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| 215 | begin
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| 216 | FWindowMode := NewMode;
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| 217 | if @OnShow <> nil then
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| 218 | OnShow(nil);
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| 219 | Invalidate;
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| 220 | BringToFront;
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| 221 | end;
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| 222 | end
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| 223 | else
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| 224 | begin
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| 225 | FWindowMode := NewMode;
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| 226 | Left := UserLeft;
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| 227 | Top := UserTop;
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| 228 | if FWindowMode = wmModal then begin
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| 229 | Gtk2Fix;
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| 230 | ShowModal;
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| 231 | end
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| 232 | else
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| 233 | Show;
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| 234 | end;
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| 235 | end;
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| 236 |
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| 237 | procedure TBufferedDrawDlg.SmartUpdateContent(ImmediateUpdate: Boolean);
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| 238 | begin
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| 239 | if Visible then begin
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| 240 | OffscreenPaint;
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| 241 | SmartInvalidate;
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| 242 | if ImmediateUpdate then
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| 243 | Update;
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| 244 | end;
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| 245 | end;
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| 246 |
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| 247 | procedure TBufferedDrawDlg.MarkUsedOffscreen(xMax, yMax: Integer);
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| 248 | begin
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| 249 | if xMax > UsedOffscreenWidth then
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| 250 | UsedOffscreenWidth := xMax;
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| 251 | if yMax > UsedOffscreenHeight then
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| 252 | UsedOffscreenHeight := yMax;
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| 253 | end;
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| 254 |
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| 255 | constructor TFramedDlg.Create(AOwner: TComponent);
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| 256 | begin
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| 257 | OnCreate := FormCreate;
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| 258 | inherited;
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| 259 | end;
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| 260 |
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| 261 | procedure TFramedDlg.FormCreate(Sender: TObject);
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| 262 | begin
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| 263 | CaptionLeft := 0;
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| 264 | CaptionRight := $FFFF;
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| 265 | WideBottom := False;
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| 266 | FullCaption := True;
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| 267 | TexOverride := False;
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| 268 | ModalIndication := True;
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| 269 | Canvas.Brush.Style := TBrushStyle.bsClear;
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| 270 | DoOnResize;
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| 271 | end;
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| 272 |
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| 273 | procedure TFramedDlg.SmartInvalidate;
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| 274 | var
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| 275 | I, BottomFrame: Integer;
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| 276 | r0, r1: HRgn;
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| 277 | begin
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| 278 | if WideBottom then
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| 279 | BottomFrame := WideFrame
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| 280 | else
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| 281 | BottomFrame := NarrowFrame;
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| 282 | r0 := CreateRectRgn(SideFrame, TitleHeight, ClientWidth - SideFrame,
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| 283 | ClientHeight - BottomFrame);
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| 284 | for I := 0 to ControlCount - 1 do
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| 285 | if not (Controls[I] is TArea) and Controls[I].Visible then
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| 286 | begin
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| 287 | with Controls[I].BoundsRect do
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| 288 | r1 := CreateRectRgn(Left, Top, Right, Bottom);
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| 289 | CombineRgn(r0, r0, r1, RGN_DIFF);
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| 290 | DeleteObject(r1);
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| 291 | end;
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| 292 | InvalidateRgn(Handle, r0, False);
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| 293 | DeleteObject(r0);
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| 294 | end;
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| 295 |
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| 296 | procedure TFramedDlg.VPaint;
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| 297 |
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| 298 | procedure CornerFrame(x0, y0, x1, y1: Integer);
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| 299 | begin
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| 300 | Frame(Canvas, x0 + 1, y0 + 1, x1 - 2, y1 - 2, MainTexture.ColorBevelLight,
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| 301 | MainTexture.ColorBevelShade);
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| 302 | Frame(Canvas, x0 + 2, y0 + 2, x1 - 3, y1 - 3, MainTexture.ColorBevelLight,
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| 303 | MainTexture.ColorBevelShade);
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| 304 | Corner(Canvas, x0 + 1, y0 + 1, 0, MainTexture);
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| 305 | Corner(Canvas, x1 - 9, y0 + 1, 1, MainTexture);
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| 306 | Corner(Canvas, x0 + 1, y1 - 9, 2, MainTexture);
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| 307 | Corner(Canvas, x1 - 9, y1 - 9, 3, MainTexture);
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| 308 | end;
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| 309 |
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| 310 | var
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| 311 | I, L, FrameTop, FrameBottom, InnerBottom, Cut, xTexOffset,
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| 312 | yTexOffset: Integer;
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| 313 | R: TRect;
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| 314 | begin
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| 315 | if not TexOverride then
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| 316 | begin
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| 317 | if (FWindowMode = wmModal) and ModalIndication then
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| 318 | MainTexture := MainTexture
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| 319 | else
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| 320 | MainTexture := MainTexture;
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| 321 | MainTexture := MainTexture;
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| 322 | end;
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| 323 | Canvas.Font.Assign(UniFont[ftCaption]);
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| 324 | L := BiColorTextWidth(Canvas, Caption);
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| 325 | Cut := (ClientWidth - L) div 2;
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| 326 | xTexOffset := 0; //(Maintexture.Width - ClientWidth) div 2;
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| 327 | yTexOffset := 0; //(Maintexture.Height - ClientHeight) div 2;
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| 328 | if WideBottom then
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| 329 | InnerBottom := ClientHeight - WideFrame
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| 330 | else
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| 331 | InnerBottom := ClientHeight - NarrowFrame;
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| 332 | if FullCaption then
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| 333 | begin
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| 334 | FrameTop := 0;
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| 335 | FrameBottom := ClientHeight;
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| 336 | end
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| 337 | else
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| 338 | begin
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| 339 | FrameTop := TitleHeight - NarrowFrame;
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| 340 | if WideBottom then
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| 341 | FrameBottom := ClientHeight - (WideFrame - NarrowFrame)
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| 342 | else
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| 343 | FrameBottom := ClientHeight;
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| 344 | end;
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| 345 | Fill(Canvas, 3, InnerBottom + 1, ClientWidth - 6, ClientHeight - InnerBottom -
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| 346 | 4, xTexOffset, yTexOffset);
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| 347 | Fill(Canvas, 3, TitleHeight - 2, SideFrame - 3, InnerBottom - TitleHeight + 4,
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| 348 | xTexOffset, yTexOffset);
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| 349 | Fill(Canvas, ClientWidth - SideFrame, TitleHeight - 2, SideFrame - 3,
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| 350 | InnerBottom - TitleHeight + 4, xTexOffset, yTexOffset);
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| 351 | Frame(Canvas, 0, FrameTop, ClientWidth - 1, FrameBottom - 1, 0, 0);
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| 352 | Frame(Canvas, SideFrame - 1, TitleHeight - 1, ClientWidth - SideFrame,
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| 353 | InnerBottom, MainTexture.ColorBevelShade, MainTexture.ColorBevelLight);
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| 354 |
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| 355 | // RFrame(Canvas,SideFrame - 2, TitleHeight - 2, ClientWidth - SideFrame + 1,
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| 356 | // InnerBottom + 1, MainTexture.ColorBevelShade, MainTexture.ColorBevelLight);
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| 357 | if FullCaption then begin
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| 358 | if (FWindowMode <> wmModal) or not ModalIndication then
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| 359 | begin
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| 360 | Fill(Canvas, 3, 3 + FrameTop, ClientWidth - 6, TitleHeight - FrameTop - 4,
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| 361 | xTexOffset, yTexOffset);
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| 362 | CornerFrame(0, FrameTop, ClientWidth, FrameBottom);
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| 363 | end
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| 364 | else
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| 365 | with Canvas do
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| 366 | begin
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| 367 | Fill(Canvas, 3 + ModalFrameIndent, 3 + FrameTop,
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| 368 | ClientWidth - 6 - 2 * ModalFrameIndent, TitleHeight - FrameTop - 4,
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| 369 | xTexOffset, yTexOffset);
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| 370 | Fill(Canvas, ClientWidth - 3 - ModalFrameIndent, 3 + FrameTop,
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| 371 | ModalFrameIndent, TitleHeight - FrameTop - 4, xTexOffset, yTexOffset);
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| 372 | Fill(Canvas, 3, 3 + FrameTop, ModalFrameIndent, TitleHeight - FrameTop -
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| 373 | 4, xTexOffset, yTexOffset);
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| 374 | CornerFrame(0, FrameTop, ClientWidth, FrameBottom);
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| 375 | Pen.Color := MainTexture.ColorBevelShade;
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| 376 | MoveTo(3 + ModalFrameIndent, 2);
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| 377 | LineTo(3 + ModalFrameIndent, TitleHeight);
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| 378 | Pen.Color := MainTexture.ColorBevelShade;
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| 379 | MoveTo(4 + ModalFrameIndent, TitleHeight - 1);
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| 380 | LineTo(ClientWidth - 4 - ModalFrameIndent, TitleHeight - 1);
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| 381 | LineTo(ClientWidth - 4 - ModalFrameIndent, 1);
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| 382 | Pen.Color := MainTexture.ColorBevelLight;
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| 383 | MoveTo(ClientWidth - 5 - ModalFrameIndent, 2);
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| 384 | LineTo(4 + ModalFrameIndent, 2);
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| 385 | LineTo(4 + ModalFrameIndent, TitleHeight);
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| 386 | MoveTo(ClientWidth - 4 - ModalFrameIndent, 1);
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| 387 | LineTo(3 + ModalFrameIndent, 1);
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| 388 | Pen.Color := MainTexture.ColorBevelLight;
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| 389 | MoveTo(ClientWidth - 3 - ModalFrameIndent, 3);
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| 390 | LineTo(ClientWidth - 3 - ModalFrameIndent, TitleHeight);
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| 391 | end;
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| 392 | end
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| 393 | else
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| 394 | begin
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| 395 | Fill(Canvas, 3, 3 + FrameTop, ClientWidth - 6, TitleHeight - FrameTop - 4,
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| 396 | xTexOffset, yTexOffset);
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| 397 | CornerFrame(0, FrameTop, ClientWidth, FrameBottom);
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| 398 |
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| 399 | Frame(Canvas, CaptionLeft, 0, ClientWidth - CaptionLeft - 1,
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| 400 | FrameTop, 0, 0);
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| 401 | Fill(Canvas, CaptionLeft + 3, 3, ClientWidth - 2 * (CaptionLeft) - 6,
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| 402 | TitleHeight - 4, xTexOffset, yTexOffset);
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| 403 |
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| 404 | Frame(Canvas, CaptionLeft + 1, 0 + 1, ClientWidth - CaptionLeft - 2,
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| 405 | TitleHeight - 1, MainTexture.ColorBevelLight, MainTexture.ColorBevelShade);
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| 406 | Frame(Canvas, CaptionLeft + 2, 0 + 2, ClientWidth - CaptionLeft - 3,
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| 407 | TitleHeight - 1, MainTexture.ColorBevelLight, MainTexture.ColorBevelShade);
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| 408 | Corner(Canvas, CaptionLeft + 1, 0 + 1, 0, MainTexture);
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| 409 | Corner(Canvas, ClientWidth - CaptionLeft - 9, 0 + 1, 1, MainTexture);
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| 410 |
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| 411 | with Canvas do
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| 412 | begin
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| 413 | Pen.Color := MainTexture.ColorBevelShade;
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| 414 | MoveTo(CaptionLeft + 1, FrameTop + 2);
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| 415 | LineTo(CaptionLeft + 1, TitleHeight);
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| 416 | Pen.Color := MainTexture.ColorBevelLight;
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| 417 | MoveTo(ClientWidth - CaptionLeft - 2, FrameTop + 2);
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| 418 | LineTo(ClientWidth - CaptionLeft - 2, TitleHeight);
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|---|
| 419 | end;
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|---|
| 420 | if WideBottom then
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|---|
| 421 | begin
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|---|
| 422 | Frame(Canvas, CaptionLeft, FrameBottom, ClientWidth - CaptionLeft - 1,
|
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| 423 | ClientHeight - 1, 0, 0);
|
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| 424 | Fill(Canvas, CaptionLeft + 3, ClientHeight - 3 - (WideFrame - 5),
|
|---|
| 425 | ClientWidth - 2 * (CaptionLeft) - 6, WideFrame - 5, xTexOffset,
|
|---|
| 426 | yTexOffset);
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|---|
| 427 | Frame(Canvas, CaptionLeft + 1, ClientHeight - WideFrame - 1 + 1,
|
|---|
| 428 | ClientWidth - CaptionLeft - 2, ClientHeight - 2,
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|---|
| 429 | MainTexture.ColorBevelLight, MainTexture.ColorBevelShade);
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|---|
| 430 | Frame(Canvas, CaptionLeft + 2, ClientHeight - WideFrame - 1 + 1,
|
|---|
| 431 | ClientWidth - CaptionLeft - 3, ClientHeight - 3,
|
|---|
| 432 | MainTexture.ColorBevelLight, MainTexture.ColorBevelShade);
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|---|
| 433 | Corner(Canvas, CaptionLeft + 1, ClientHeight - 9, 2, MainTexture);
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|---|
| 434 | Corner(Canvas, ClientWidth - CaptionLeft - 9, ClientHeight - 9, 3,
|
|---|
| 435 | MainTexture);
|
|---|
| 436 |
|
|---|
| 437 | with Canvas do
|
|---|
| 438 | begin
|
|---|
| 439 | Pen.Color := MainTexture.ColorBevelShade;
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|---|
| 440 | MoveTo(CaptionLeft + 1, ClientHeight - WideFrame);
|
|---|
| 441 | LineTo(CaptionLeft + 1, FrameBottom - 2);
|
|---|
| 442 | Pen.Color := MainTexture.ColorBevelLight;
|
|---|
| 443 | MoveTo(ClientWidth - CaptionLeft - 2, ClientHeight - WideFrame);
|
|---|
| 444 | LineTo(ClientWidth - CaptionLeft - 2, FrameBottom - 2);
|
|---|
| 445 | end;
|
|---|
| 446 | end;
|
|---|
| 447 | end;
|
|---|
| 448 | RisedTextOut(Canvas, Cut - 1, 7, Caption);
|
|---|
| 449 |
|
|---|
| 450 | for I := 0 to ControlCount - 1 do
|
|---|
| 451 | if Controls[I].Visible and (Controls[I] is TButtonBase) then
|
|---|
| 452 | begin
|
|---|
| 453 | R := Controls[I].BoundsRect;
|
|---|
| 454 | if (R.Bottom <= TitleHeight) or (R.Top >= InnerBottom) then
|
|---|
| 455 | BtnFrame(Canvas, R, MainTexture);
|
|---|
| 456 | end;
|
|---|
| 457 |
|
|---|
| 458 | BitBltCanvas(Canvas, SideFrame, TitleHeight, ClientWidth - 2 * SideFrame,
|
|---|
| 459 | InnerBottom - TitleHeight, Offscreen.Canvas, 0, 0);
|
|---|
| 460 | end;
|
|---|
| 461 |
|
|---|
| 462 | procedure TFramedDlg.InitWindowRegion;
|
|---|
| 463 | var
|
|---|
| 464 | r0, r1: HRgn;
|
|---|
| 465 | begin
|
|---|
| 466 | if FullCaption then
|
|---|
| 467 | Exit;
|
|---|
| 468 | r0 := CreateRectRgn(0, 0, ClientWidth, ClientHeight);
|
|---|
| 469 | r1 := CreateRectRgn(0, 0, CaptionLeft, TitleHeight - NarrowFrame);
|
|---|
| 470 | CombineRgn(r0, r0, r1, RGN_DIFF);
|
|---|
| 471 | // DeleteObject(r1);
|
|---|
| 472 | r1 := CreateRectRgn(ClientWidth - CaptionLeft, 0, ClientWidth,
|
|---|
| 473 | TitleHeight - NarrowFrame);
|
|---|
| 474 | CombineRgn(r0, r0, r1, RGN_DIFF);
|
|---|
| 475 | // DeleteObject(r1);
|
|---|
| 476 | if WideBottom then
|
|---|
| 477 | begin
|
|---|
| 478 | r1 := CreateRectRgn(0, ClientHeight - (WideFrame - NarrowFrame),
|
|---|
| 479 | CaptionLeft, ClientHeight);
|
|---|
| 480 | CombineRgn(r0, r0, r1, RGN_DIFF);
|
|---|
| 481 | // DeleteObject(r1);
|
|---|
| 482 | r1 := CreateRectRgn(ClientWidth - CaptionLeft,
|
|---|
| 483 | ClientHeight - (WideFrame - NarrowFrame), ClientWidth, ClientHeight);
|
|---|
| 484 | CombineRgn(r0, r0, r1, RGN_DIFF);
|
|---|
| 485 | // DeleteObject(r1);
|
|---|
| 486 | end;
|
|---|
| 487 | SetWindowRgn(Handle, r0, False);
|
|---|
| 488 | // DeleteObject(r0); // causes crash with Windows 95
|
|---|
| 489 | end;
|
|---|
| 490 |
|
|---|
| 491 | procedure TFramedDlg.FillOffscreen(Left, Top, Width, Height: Integer);
|
|---|
| 492 | begin
|
|---|
| 493 | Fill(Offscreen.Canvas, Left, Top, Width, Height,
|
|---|
| 494 | SideFrame, TitleHeight);
|
|---|
| 495 | end;
|
|---|
| 496 |
|
|---|
| 497 | procedure TFramedDlg.DoOnResize;
|
|---|
| 498 | begin
|
|---|
| 499 | inherited;
|
|---|
| 500 | InnerWidth := Width - 2 * SideFrame;
|
|---|
| 501 | InnerHeight := Height - TitleHeight - NarrowFrame;
|
|---|
| 502 | SmartUpdateContent;
|
|---|
| 503 | end;
|
|---|
| 504 |
|
|---|
| 505 | procedure CreateOffscreen(var Offscreen: TBitmap; Width, Height: Integer);
|
|---|
| 506 | begin
|
|---|
| 507 | if not Assigned(Offscreen) then begin
|
|---|
| 508 | Offscreen := TBitmap.Create;
|
|---|
| 509 | Offscreen.PixelFormat := TPixelFormat.pf24bit;
|
|---|
| 510 | end;
|
|---|
| 511 | if (Offscreen.Width <> Width) or (Offscreen.Height <> Height) then begin
|
|---|
| 512 | Offscreen.SetSize(Width, Height);
|
|---|
| 513 | ClearOffscreen(Offscreen);
|
|---|
| 514 | end;
|
|---|
| 515 | end;
|
|---|
| 516 |
|
|---|
| 517 | initialization
|
|---|
| 518 |
|
|---|
| 519 | ShowNewContentProc := nil;
|
|---|
| 520 | MainFormKeyDown := nil;
|
|---|
| 521 |
|
|---|
| 522 | end.
|
|---|
