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lazarus-ccr/components/tvplanit/source/vpmisc.pas

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{*********************************************************}
{* VPMISC.PAS 1.03 *}
{*********************************************************}
{* ***** BEGIN LICENSE BLOCK ***** *}
{* Version: MPL 1.1 *}
{* *}
{* The contents of this file are subject to the Mozilla Public License *}
{* Version 1.1 (the "License"); you may not use this file except in *}
{* compliance with the License. You may obtain a copy of the License at *}
{* http://www.mozilla.org/MPL/ *}
{* *}
{* Software distributed under the License is distributed on an "AS IS" basis, *}
{* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License *}
{* for the specific language governing rights and limitations under the *}
{* License. *}
{* *}
{* The Original Code is TurboPower Visual PlanIt *}
{* *}
{* The Initial Developer of the Original Code is TurboPower Software *}
{* *}
{* Portions created by TurboPower Software Inc. are Copyright (C) 2002 *}
{* TurboPower Software Inc. All Rights Reserved. *}
{* *}
{* Contributor(s): *}
{* *}
{* ***** END LICENSE BLOCK ***** *}
unit VpMisc;
{-Miscellaneous functions and procedures}
interface
{$I vp.inc}
uses
{$IFDEF LCL}
LCLProc, LCLType, LCLIntf,
{$ELSE}
Windows, Consts, Messages,
{$ENDIF}
Buttons, Classes, Controls, StdCtrls, ExtCtrls, Forms, Graphics, Menus,
SysUtils, VpBase, VpData, VpConst;
type
TDayList = array[1..12] of Word;
TVpDayType = (dtSunday, dtMonday, dtTuesday, dtWednesday, dtThursday, dtFriday, dtSaturday);
TVpDateFormat = (dfShort, dfLong);
TVpDayNameWidth = Integer;
const
MonthDays: array [Boolean] of TDayList =
((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
GranularityMinutes: Array[TVpGranularity] of Integer = (5, 6, 10, 15, 20, 30, 60);
function DaysInMonth(Year, Month : Integer) : Integer;
{-return the number of days in the specified month of a given year}
function DefaultEpoch : Integer;
{-return the current century}
//function GetLeftButton : Byte;
procedure GetRGB(Clr : TColor; var IR, IG, IB : Byte);
function IsLeapYear(Year : Integer) : Boolean;
function GetStartOfWeek(Date: TDateTime; StartOn: TVpDayType): TDateTime;
procedure StripString(var Str: string);
{ strips non-alphanumeric characters from the beginning and end of the string}
function AssembleName(Contact: TVpContact): string;
{ returns an assembled name string }
procedure ParseName(Contact: TVpContact; const Value: string);
{ parses the name into it's elements and updates the contact }
procedure ParseCSZ(Str: string; var City, State, Zip: string);
{ parses the string and returns the city, state and zip parameters }
{$IFDEF DELPHI}
function LoadBaseBitmap(lpBitmapName : PAnsiChar) : HBITMAP;
{-load and return the handle to bitmap resource}
function LoadBaseCursor(lpCursorName : PAnsiChar) : HCURSOR;
{-load and return the handle to cursor resource}
{$ENDIF}
function HeightOf(const R : TRect) : Integer;
{- return the height of the TRect}
function WidthOf(const R : TRect) : Integer;
{- return the width of the TRect}
function RightOf(AControl: TControl): Integer;
{- returns the right edge of a control }
function BottomOf(AControl: TControl): Integer;
{- returns the bottom edge of a control }
function GetDisplayString(Canvas : TCanvas; const S : string;
MinChars, MaxWidth : Integer) : string;
{-given a string, a minimum number of chars to display, and a max width, }
{ find the string that can be displayed in that width - add ellipsis to }
{ the end if necessary and possible }
procedure DrawBevelRect(const Canvas: TCanvas; R: TRect;
Shadow, Highlight: TColor);
{-draws a bevel in the specified TRect, using the specified colors }
function PointInRect(Point: TPoint; Rect: TRect): Boolean;
{-determines if the specified point resides inside the specified TRect }
function GetAlarmAdvanceTime(Advance: Integer; AdvanceType: TVpAlarmAdvType): TDateTime;
{$IFDEF DELPHI}{$IFNDEF Delphi6}
function MonthOfTheYear(TheDate: TDateTime): Word;
procedure IncAMonth(var Year, Month, Day: Word; NumMonths: Integer);
function IncMonth(const TheDate: TDateTime; NumberOfMonths: Integer): TDateTime;
function IncYear(TheDate: TDateTime; NumYears: Integer): TDateTime;
function TimeOf(ADateTime: TDateTime): TDateTime;
function DateOf(ADateTime: TDateTime): TDateTime;
{$ENDIF}{$ENDIF}
function GetJulianDate(Date: TDateTime): Word;
function GetWeekOfYear(ADate: TDateTime): byte;
function IsWeekEnd(ADate: TDateTime): Boolean;
function SameDate(dt1, dt2: TDateTime): Boolean;
function DateInRange(ADate, StartDate, EndDate: TDateTime; IncludeLimits: Boolean): Boolean;
function TimeInRange(ATime, StartTime, EndTime: TDateTime; IncludeLimits: Boolean): Boolean;
function GetTimeFormat: TVpTimeFormat;
function GranularityToStr(Gran: TVpGranularity): string;
function HourToAMPM(Hour: TVpHours): string;
function HourToStr(Hour: TVpHours; Mil: Boolean): string;
function HourToLine(const Value: TVpHours; const Granularity: TVpGranularity): Integer;
function GetStartLine(StartTime: TDateTime; Granularity: TVpGranularity): Integer;
function GetEndLine(EndTime: TDateTime; Granularity: TVpGranularity): Integer;
function LineToStartTime(Line: Integer; Granularity: TVpGranularity): TDateTime;
function GetLineDuration(Granularity: TVpGranularity): Double;
function AutoHeight(ARadioGroup: TRadioGroup): Integer;
function GetButtonWidth(AButton: TButton): Integer;
function GetLabelWidth(ALabel: TLabel): Integer;
function GetRealFontHeight(AFont: TFont): Integer;
function DecodeLineEndings(const AText: String): String;
function EncodeLineEndings(const AText: String): String;
procedure AddResourceGroupMenu(AMenu: TMenuItem; AResource: TVpResource;
AEventHandler: TNotifyEvent);
function OverlayPatternToBrushStyle(APattern: TVpOverlayPattern): TBrushStyle;
{$IFDEF LCL}
procedure HighDPI(FromDPI: integer);
procedure ScaleDPI(Control: TControl; FromDPI: integer);
const
DesignTimeDPI = 96;
{$ENDIF}
procedure Unused(const A1); overload;
procedure Unused(const A1, A2); overload;
procedure Unused(const A1, A2, A3); overload;
implementation
uses
{$IFDEF LCL}
DateUtils,
{$ENDIF}
VpException, VpSR, VpBaseDS;
procedure StripString(var Str: string);
begin
if Length(Str) < 1 then
Exit;
while (Length(Str) > 0) and (not (Str[1] in ['A'..'Z', 'a'..'z', '0'..'9'])) do
delete(Str, 1, 1);
while (Length(Str) > 0) and (not (Str[Length(Str)] in ['A'..'Z', 'a'..'z', '0'..'9'])) do
delete(Str, Length(Str), 1);
end;
{=====}
function AssembleName(Contact: TVpContact): string;
begin
result := Contact.LastName;
if Assigned (Contact.Owner) then begin
if Contact.Owner.ContactSort = csFirstLast then begin
if Contact.FirstName <> '' then
result := Contact.FirstName + ' ' + Result;
end else begin
if Contact.FirstName <> '' then
result := result + ', ' + Contact.FirstName;
end;
end else begin
if Contact.FirstName <> '' then
result := result + ', ' + Contact.FirstName;
end;
end;
{=====}
procedure ParseName(Contact: TVpContact; const Value: string);
var
name, ln, fn: string;
begin
name := Value;
{ strip spaces from the beginning and end of the name string }
StripString(name);
{ parse string }
if pos(',', name) > 0 then begin
{ lastname, firstname }
ln := copy(name, 1, pos(',', name) -1);
fn := copy(name, pos(',', name), length(name));
end else begin
{ firstname lastname }
ln := copy(name, LastDelimiter(' ', name), length(name));
fn := copy(name, 1, LastDelimiter(' ', name) - 1);
end;
{ strip fn and ln strings }
StripString(fn);
StripString(ln);
{ assign the strings to the proper contact fields }
Contact.LastName := ln;
Contact.FirstName := fn;
end;
{=====}
procedure ParseCSZ(Str: string; var City, State, Zip: string);
var
num: integer;
begin
StripString(Str);
if Pos(',', Str) > 0 then begin
City := copy (Str, 1, pos(',', str) - 1);
delete(str, 1, pos(',', str));
end;
num := LastDelimiter(' ', Str);
if (num > 0)
and (num < Length(Str))
and (Str[num + 1] in ['0'..'9']) then begin
Zip := copy(Str, num, length(Str));
Delete(Str, num, length(str));
end;
State := Str;
StripString(City);
StripString(State);
StripString(Zip);
end;
{=====}
{$IFDEF DELPHI}
function LoadBaseBitmap(lpBitmapName : PAnsiChar) : HBITMAP;
begin
{$IFDEF FPC}
//wird direkt geladen
//fImageList.AddLazarusResource('TABSET_SCROLLER');//, clFuchsia);
{$ENDIF}
// Result := LoadBitmap(FindClassHInstance(TVpCustomControl), lpBitmapName);
end;
{=====}
function LoadBaseCursor(lpCursorName : PAnsiChar) : HCURSOR;
begin
//TODO: Result := LoadCursor(FindClassHInstance(TVpCustomControl), lpCursorName);
end;
{$ENDIF}
function WidthOf(const R : TRect) : Integer;
begin
Result := R.Right - R.Left;
end;
{=====}
function HeightOf(const R : TRect) : Integer;
begin
Result := R.Bottom - R.Top;
end;
{=====}
function GetDisplayString(Canvas : TCanvas; const S : string;
MinChars, MaxWidth : Integer) : string;
var
iDots, EllipsisWidth, Extent, Len, Width : Integer;
ShowEllipsis : Boolean;
begin
{be sure that the Canvas Font is set before entering this routine}
EllipsisWidth := Canvas.TextWidth('...');
Len := Length(S);
Result := S;
Extent := Canvas.TextWidth(Result);
ShowEllipsis := False;
Width := MaxWidth;
while (Extent > Width) do begin
ShowEllipsis := True;
Width := MaxWidth - EllipsisWidth;
if Len > MinChars then begin
Delete(Result, Len, 1);
dec(Len);
end else
break;
Extent := Canvas.TextWidth(Result);
end;
if ShowEllipsis then begin
Result := Result + '...';
inc(Len, 3);
Extent := Canvas.TextWidth(Result);
iDots := 3;
while (iDots > 0) and (Extent > MaxWidth) do begin
Delete(Result, Len, 1);
Dec(Len);
Extent := Canvas.TextWidth(Result);
Dec(iDots);
end;
end;
end;
{=====}
procedure DrawBevelRect(const Canvas: TCanvas; R: TRect;
Shadow, Highlight: TColor);
begin
with Canvas do
begin
Pen.Color := Shadow;
PolyLine([Point(R.Left, R.Bottom), Point(R.Left, R.Top),
Point(R.Right, R.Top)]);
Pen.Color := Highlight;
PolyLine([Point(R.Right, R.Top), Point(R.Right, R.Bottom),
Point(R.Left, R.Bottom)]);
end;
end;
{=====}
function PointInRect(Point: TPoint; Rect: TRect): Boolean;
begin
result := (Point.X >= Rect.Left) and (Point.X <= Rect.Right)
and (Point.Y >= Rect.Top) and (Point.Y <= Rect.Bottom);
end;
{=====}
function DaysInMonth(Year, Month : Integer) : Integer;
begin
if (Year < 100) then
raise EVpDateException.Create(RSInvalidYear + ' "' + IntToStr(Year) + '"');
case Month of
1, 3, 5, 7, 8, 10, 12 : Result := 31;
4, 6, 9, 11 : Result := 30;
2 : Result := 28+Ord(IsLeapYear(Year));
else
Result := 0;
end;
end;
{=====}
function DefaultEpoch : Integer;
var
ThisYear : Word;
ThisMonth : Word;
ThisDay : Word;
begin
DecodeDate(SysUtils.Date, ThisYear, ThisMonth, ThisDay);
Result := (ThisYear div 100) * 100;
end;
{=====}
(*
function GetLeftButton : Byte;
const
RLButton : array[Boolean] of Word = (VK_LBUTTON, VK_RBUTTON);
begin
//TODO: Result := RLButton[GetSystemMetrics(SM_SWAPBUTTON) <> 0];
end; *)
{=====}
procedure GetRGB(Clr : TColor; var IR, IG, IB : Byte);
begin
IR := GetRValue(Clr);
IG := GetGValue(Clr);
IB := GetBValue(Clr);
end;
{=====}
function IsLeapYear(Year : Integer) : Boolean;
begin
Result := (Year mod 4 = 0) and (Year mod 4000 <> 0) and
((Year mod 100 <> 0) or (Year mod 400 = 0));
end;
{=====}
function GetStartOfWeek(Date: TDateTime; StartOn: TVpDayType): TDateTime;
begin
result := Date;
case StartOn of
dtSunday: result := Date - (DayOfWeek(Date) - 1);
dtMonday: result := Date - (DayOfWeek(Date) - 2);
dtTuesday: result := Date - (DayOfWeek(Date) - 3);
dtWednesday: result := Date - (DayOfWeek(Date) - 4);
dtThursday: result := Date - (DayOfWeek(Date) - 5);
dtFriday: result := Date - (DayOfWeek(Date) - 6);
dtSaturday: result := Date - (DayOfWeek(Date) - 7);
end;
end;
{=====}
{$IFDEF DELPHI} {$IFNDEF Delphi6}
function MonthOfTheYear(TheDate: TDateTime): Word;
var
Year, Day: Word;
begin
DecodeDate(TheDate, Year, Result, Day);
end;
{=====}
procedure IncAMonth(var Year, Month, Day: Word; NumMonths: Integer);
type
PMonthDayTable = ^TMonthDayTable;
TMonthDayTable = array[1..12] of Word;
const
MonthDays: array[Boolean] of TMonthDayTable =
((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
var
DayTable: PDayTable;
Sign: Integer;
begin
if NumMonths >= 0 then
Sign := 1
else
Sign := -1;
Year := Year + NumMonths div 12;
NumMonths := NumMonths mod 12;
Inc (Month, NumMonths);
if Word(Month-1) > 11 then
begin
Inc(Year, Sign);
Inc(Month, -12 * Sign);
end;
DayTable := @MonthDays[IsLeapYear(Year)];
if Day > DayTable^[Month] then
Day := DayTable^[Month];
end;
{=====}
function IncMonth(const TheDate: TDateTime; NumberOfMonths: Integer): TDateTime;
var
Year, Month, Day: Word;
begin
DecodeDate(TheDate, Year, Month, Day);
IncAMonth(Year, Month, Day, NumberOfMonths);
Result := EncodeDate(Year, Month, Day);
end;
{=====}
function IncYea (TheDate: TDateTime; NumYear : Integer) : TDateTime;
begin
Result := IncMont (TheDate, NumYears * 12);
end;
function DateOf(ADateTime: TDateTime): TDateTime;
begin
Result := trunc(ADateTime);
end;
function TimeOf(ADateTime: TDateTime): TDateTime;
begin
Result := frac(ADateTime);
end;
{=====}
{$ENDIF}{$ENDIF}
function GetJulianDate(Date: TDateTime): Word;
var
y, m, d, I: word;
Julian: Word;
begin
Julian := 0;
DecodeDate(Date, y, m, d);
{ Inc Julian by the number of days in each of the elapsed months }
for I := 1 to M do
Inc(Julian, DaysInMonth(Y, I));
{ add in the elapsed days from this month }
Julian := Julian + D;
{ return the value }
result := Julian;
end;
{=====}
function GetTimeFormat: TVpTimeFormat;
var
s: String;
begin
s := lowercase(FormatDateTime('hh:nn ampm', 0.25));
if pos(lowercase(FormatSettings.TimeAMString), s) = Length(s) - Length(FormatSettings.TimeAMString) then
Result := tf12Hour else
Result := tf24Hour;
end;
function GranularityToStr(Gran: TVpGranularity): string;
begin
Result := IntToStr(GranularityMinutes[Gran]);
end;
function HourToAMPM(Hour: TVpHours): string;
begin
if (Hour >= H_00) and (Hour <= H_11) then
Result := 'AM'
else
Result := 'PM';
end;
function HourToLine(const Value: TVpHours; const Granularity: TVpGranularity): Integer;
begin
Result := Ord(Value) * 60 div GranularityMinutes[Granularity];
end;
function HourToStr(Hour: TVpHours; Mil: Boolean): string;
begin
if Mil then
Result := IntToStr(ord(Hour))
else
if ord(Hour) mod 12 = 0 then
Result := '12'
else
Result := IntToStr(ord(Hour) mod 12);
end;
function GetStartLine(StartTime: TDateTime; Granularity: TVpGranularity): Integer;
var
LineDuration: Double; // percentage of a day covered by each line
Time: Double;
begin
{ remove the date part, and add one minute to the time }
Time := TimeOf(StartTime) + OneMinute;
LineDuration := GranularityMinutes[Granularity] / MinutesInDay;
result := trunc(Time / LineDuration);
end;
{=====}
function GetEndLine(EndTime: TDateTime; Granularity: TVpGranularity): Integer;
var
LineDuration: Double; // percentage of a day covered by each line
Time: Double;
begin
{ remove the date part, and subtract one minute from the time }
Time := TimeOf(EndTime) - OneMinute;
LineDuration := GranularityMinutes[Granularity] / MinutesInDay;
result := trunc(Time / LineDuration);
end;
{=====}
function GetAlarmAdvanceTime(Advance: Integer;
AdvanceType: TVpAlarmAdvType): TDateTime;
begin
result := 0.0;
case AdvanceType of
atMinutes : result := Advance * OneMinute;
atHours : result := Advance * OneHour;
atDays : result := Advance;
end;
end;
{=====}
function DateInRange(ADate, StartDate, EndDate: TDateTime;
IncludeLimits: Boolean): Boolean;
begin
ADate := trunc(ADate);
StartDate := trunc(StartDate);
EndDate := trunc(EndDate);
Result := (StartDate < ADate) and (ADate < EndDate);
if IncludeLimits and (not Result) then
Result := (StartDate = ADate) or (EndDate = ADate);
end;
function TimeInRange(ATime, StartTime, EndTime: TDateTime;
IncludeLimits: Boolean): Boolean;
var
equStart, equEnd: Boolean;
begin
equStart := abs(ATime - StartTime) < CompareTimeEps;
equEnd := abs(ATime - EndTime) < CompareTimeEps;
if IncludeLimits then
Result := equStart or equEnd or ((ATime > StartTime) and (ATime < EndTime))
else
Result := (not equStart) and (not equEnd) and (ATime > StartTime) and (ATime < EndTime);
end;
{=====}
function LineToStartTime(Line: Integer; Granularity: TVpGranularity): TDateTime;
begin
Result := frac(Line * GranularityMinutes[Granularity] / MinutesInDay);
end;
{=====}
function GetLineDuration(Granularity: TVpGranularity): Double;
begin
Result := GranularityMinutes[Granularity] / MinutesInDay;
end;
{=====}
function AutoHeight(ARadioGroup: TRadioGroup): Integer;
var
w: Integer;
begin
w := ARadioGroup.Width;
ARadioGroup.AutoSize := true;
Result := ARadioGroup.Height;
ARadioGroup.AutoSize := false;
ARadioGroup.Width := w;
end;
function GetLabelWidth(ALabel: TLabel): Integer;
var
canvas: TControlCanvas;
begin
canvas := TControlCanvas.Create;
canvas.Control := ALabel;
canvas.Font.Assign(ALabel.Font);
Result := canvas.TextWidth(ALabel.Caption);
canvas.Free;
end;
function GetButtonWidth(AButton: TButton): Integer;
const
MARGIN = 24;
var
canvas: TControlCanvas;
begin
canvas := TControlCanvas.Create;
canvas.Control := AButton;
canvas.Font.Assign(AButton.Font);
Result := canvas.TextWidth(AButton.Caption) + MARGIN * Screen.PixelsPerInch div DesignTimeDPI;
canvas.Free;
end;
function GetRealFontHeight(AFont: TFont): Integer;
begin
if AFont.Size = 0 then
{$IFDEF LCL}
Result := GetFontData(AFont.Reference.Handle).Height * Screen.PixelsPerInch div DesignTimeDPI
{$ELSE}
Result := GetFontData(AFont.Handle).Height
{$ENDIF}
else
Result := AFont.Height;
end;
function RightOf(AControl: TControl): Integer;
begin
Result := AControl.Left + AControl.Width;
end;
function Bottomof(AControl: TControl): Integer;
begin
Result := AControl.Top + AControl.Height;
end;
function SameDate(dt1, dt2: TDateTime): Boolean;
begin
Result := trunc(dt1) = trunc(dt2);
end;
// Calculates ISO week number (checked with Jan 1, 2016, which is in week 53).
function GetWeekOfYear(ADate: TDateTime): byte;
// was in TvWeekView.
var
yr, dummy: word;
First: TDateTime;
begin
DecodeDate(ADate + (8 - DayOfWeek(ADate)) mod 7 - 3, yr, dummy,dummy);
First := EncodeDate(yr, 1, 1);
Result := trunc(ADate - First - 3 + (DayOfWeek(First) + 1) mod 7) div 7 + 1;
end;
// Returns true if the specified date is on the weekend.
function IsWeekend(ADate: TDateTime): Boolean;
begin
Result := (DayOfWeek(ADate) in [1, 7]);
end;
function DecodeLineEndings(const AText: String): String;
begin
Result := StringReplace(AText, '\n', LineEnding, [rfReplaceAll]);
end;
function EncodeLineEndings(const AText: String): String;
begin
Result := StringReplace(AText, LineEnding, '\n', [rfReplaceAll]);
end;
procedure AddResourceGroupMenu(AMenu: TMenuItem; AResource: TVpResource;
AEventHandler: TNotifyEvent);
var
datastore: TVpCustomDatastore;
grp: TVpResourceGroup;
list: TList;
newItem: TMenuItem;
newSubItem: TMenuItem;
i: Integer;
begin
if (AMenu = nil) or (AResource = nil) or (AResource.Owner = nil) then
exit;
datastore := AResource.Owner.Owner as TVpCustomDatastore;
if (RSPopupResourceGroups <> '') and
(datastore <> nil) and (datastore.Resource <> nil) then
begin
list := TList.Create;
try
datastore.Resource.GetResourceGroups(list);
if list.Count > 0 then begin
newItem := TMenuItem.Create(AMenu.Owner);
newItem.Caption := RSPopupResourceGroups;
newItem.Tag := 0;
AMenu.Add(newItem);
newSubItem := TMenuItem.Create(AMenu.Owner);
newSubItem.Caption := RSNoOverlayedEvents;
newSubItem.OnClick := AEventHandler;
newSubItem.GroupIndex := 1;
newSubItem.AutoCheck := true;
newSubItem.Checked := datastore.Resource.Group = nil;
newSubItem.Tag := 0;
newItem.Add(newSubItem);
if list.Count > 1 then begin
newSubItem := TMenuItem.Create(AMenu.Owner);
newSubItem.Caption := '-';
newItem.Add(newSubItem);
end;
for i:=0 to list.Count-1 do begin
grp := TVpResourceGroup(list[i]);
newSubItem := TMenuItem.Create(AMenu.Owner);
newSubItem.Caption := grp.Caption;
newSubItem.OnClick := AEventHandler;
newSubItem.GroupIndex := 1;
newSubItem.AutoCheck := true;
newSubItem.Checked := (datastore.Resource.Group = grp);
newSubItem.Tag := PtrInt(grp);
newItem.Add(NewSubItem);
end;
end;
finally
list.Free;
end;
end;
end;
function OverlayPatternToBrushStyle(APattern: TVpOverlayPattern): TBrushStyle;
begin
Result := TBrushStyle(APattern);
end;
{$IFDEF LCL}
procedure HighDPI(FromDPI: integer);
var
i: integer;
begin
if Screen.PixelsPerInch = FromDPI then
exit;
for i := 0 to Screen.FormCount - 1 do
ScaleDPI(Screen.Forms[i], FromDPI);
end;
procedure ScaleDPI(Control: TControl; FromDPI: integer);
var
i: integer;
WinControl: TWinControl;
begin
if Screen.PixelsPerInch = FromDPI then
exit;
with Control do
begin
Left := ScaleX(Left, FromDPI);
Top := ScaleY(Top, FromDPI);
Width := ScaleX(Width, FromDPI);
Height := ScaleY(Height, FromDPI);
end;
if Control is TWinControl then
begin
WinControl := TWinControl(Control);
if WinControl.ControlCount = 0 then
exit;
for i := 0 to WinControl.ControlCount - 1 do
ScaleDPI(WinControl.Controls[i], FromDPI);
end;
end;
{$ENDIF}
{$PUSH}{$HINTS OFF}
procedure Unused(const A1);
begin
end;
procedure Unused(const A1, A2);
begin
end;
procedure Unused(const A1, A2, A3);
begin
end;
{$POP}
end.