Added: X2UtCursors unit (WaitCursor function)
Changed: Added SkipEmptyItems parameter to Join function
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@ -56,6 +56,7 @@ contains
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X2UtElevation in '..\..\X2UtElevation.pas',
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X2UtPersistXML in '..\..\X2UtPersistXML.pas',
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X2UtPersistXMLBinding in '..\..\X2UtPersistXMLBinding.pas',
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XMLDataBindingUtils in '..\..\XMLDataBinding\XMLDataBindingUtils.pas';
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XMLDataBindingUtils in '..\..\XMLDataBinding\XMLDataBindingUtils.pas',
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X2UtCursors in '..\..\X2UtCursors.pas';
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end.
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@ -6,7 +6,7 @@
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<DCC_DCCCompiler>DCC32</DCC_DCCCompiler>
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<DCC_DependencyCheckOutputName>P:\algemeen\bin\D2007\X2Utils2007.bpl</DCC_DependencyCheckOutputName>
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<DCC_DependencyCheckOutputName>..\..\..\Bpl\D2006\X2Utils2007.bpl</DCC_DependencyCheckOutputName>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<Version>7.0</Version>
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@ -38,6 +38,8 @@
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<Excluded_Packages Name="$(BDS)\bin\dcloffice2k100.bpl">Microsoft Office 2000 Sample Automation Server Wrapper Components</Excluded_Packages>
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<Excluded_Packages Name="$(BDS)\bin\dclofficexp100.bpl">Microsoft Office XP Sample Automation Server Wrapper Components</Excluded_Packages>
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</Excluded_Packages></Delphi.Personality></BorlandProject></BorlandProject>
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@ -49,6 +51,7 @@
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</DelphiCompile>
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<DCCReference Include="..\..\X2UtApp.pas" />
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<DCCReference Include="..\..\X2UtBits.pas" />
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<DCCReference Include="..\..\X2UtCursors.pas" />
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<DCCReference Include="..\..\X2UtElevation.pas" />
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<DCCReference Include="..\..\X2UtGraphics.pas" />
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<DCCReference Include="..\..\X2UtHandCursor.pas" />
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@ -71,8 +74,8 @@
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<DCCReference Include="..\..\X2UtStrings.pas" />
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<DCCReference Include="..\..\X2UtTempFile.pas" />
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<DCCReference Include="..\..\XMLDataBinding\XMLDataBindingUtils.pas" />
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<DCCReference Include="P:\algemeen\rtl.dcp" />
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<DCCReference Include="P:\algemeen\vcl.dcp" />
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<DCCReference Include="P:\algemeen\xmlrtl.dcp" />
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<DCCReference Include="C:\Users\PsychoMark\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Development\rtl.dcp" />
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<DCCReference Include="C:\Users\PsychoMark\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Development\vcl.dcp" />
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<DCCReference Include="C:\Users\PsychoMark\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\Development\xmlrtl.dcp" />
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</ItemGroup>
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</Project>
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72
X2UtCursors.pas
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72
X2UtCursors.pas
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@ -0,0 +1,72 @@
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{
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:: X2UtCursors implements utility functions for cursor operations.
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::
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:: Including this unit in your project will automatically include
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:: the X2UtHandCursor unit.
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::
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:: Last changed: $Date$
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:: Revision: $Rev$
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:: Author: $Author$
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}
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unit X2UtCursors;
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interface
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{**
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* Changes the screen cursor temporarily to an hourglass.
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*
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* The result does not need to be stored in a variable unless early
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* restoration of the cursor is desired.
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*
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* @param ACursor the cursor type to show
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* @result the interface which, when freed, will restore the cursor
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*}
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function TempWaitCursor: IInterface;
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implementation
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uses
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Controls,
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Forms;
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var
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WaitCursorRefCount: Integer;
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type
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TWaitCursor = class(TInterfacedObject)
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public
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constructor Create;
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destructor Destroy; override;
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end;
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function TempWaitCursor: IInterface;
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begin
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Result := TWaitCursor.Create;
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end;
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{ TWaitCursor }
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constructor TWaitCursor.Create;
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begin
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inherited;
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Inc(WaitCursorRefCount);
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Screen.Cursor := crHourGlass;
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end;
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destructor TWaitCursor.Destroy;
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begin
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Dec(WaitCursorRefCount);
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if WaitCursorRefCount = 0 then
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Screen.Cursor := crDefault;
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inherited;
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end;
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end.
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@ -84,9 +84,10 @@ type
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*
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* @param ASource the source parts
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* @param AGlue the string added between the parts
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* @param ASkipEmptyItems if True, include only items of Length > 0
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* @result the composed parts
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*}
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function Join(const ASource: TStringDynArray; const AGlue: String): String;
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function Join(ASource: array of string; const AGlue: String; ASkipEmptyItems: Boolean = False): String;
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{** Determines if one path is the child of another path.
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*
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@ -321,14 +322,16 @@ begin
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until False;
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end;
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function Join(const ASource: TStringDynArray; const AGlue: String): String;
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function Join(ASource: array of string; const AGlue: string; ASkipEmptyItems: Boolean): string;
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var
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iGlue: Integer;
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iHigh: Integer;
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iItem: Integer;
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iLength: Integer;
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pGlue: PChar;
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pPos: PChar;
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totalLength: Integer;
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itemIndex: Integer;
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itemLength: Integer;
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itemCount: Integer;
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glueLength: Integer;
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resultPos: PChar;
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firstItem: Boolean;
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begin
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if High(ASource) = -1 then
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@ -337,36 +340,47 @@ begin
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exit;
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end;
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iGlue := Length(AGlue);
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pGlue := PChar(AGlue);
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iLength := -iGlue;
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{ Om geheugen-reallocaties te verminderen, vantevoren even
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uitrekenen hoe groot het resultaat gaat worden. }
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itemCount := 0;
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totalLength := 0;
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// First run: calculate the size we need to reserve (two loops should
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// generally be more efficient than a lot of memory resizing)
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iHigh := High(ASource);
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for iItem := iHigh downto 0 do
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Inc(iLength, Length(ASource[iItem]) + iGlue);
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SetLength(Result, iLength);
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pPos := PChar(Result);
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Inc(pPos, Length(Result));
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// Copy last item
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iLength := Length(ASource[iHigh]);
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Dec(pPos, iLength);
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Move(PChar(ASource[iHigh])^, pPos^, iLength);
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// Copy remaining items and glue strings
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for iItem := iHigh - 1 downto 0 do
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for itemIndex := High(ASource) downto Low(ASource) do
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begin
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Dec(pPos, iGlue);
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Move(pGlue^, pPos^, iGlue);
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if (not ASkipEmptyItems) or (Length(ASource[itemIndex]) > 0) then
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begin
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Inc(totalLength, Length(ASource[itemIndex]));
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Inc(itemCount);
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end;
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end;
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iLength := Length(ASource[iItem]);
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Dec(pPos, iLength);
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Move(PChar(ASource[iItem])^, pPos^, iLength);
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glueLength := Length(AGlue);
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Inc(totalLength, Pred(itemCount) * glueLength);
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SetLength(Result, totalLength);
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firstItem := True;
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resultPos := PChar(Result);
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for itemIndex := Low(ASource) to High(ASource) do
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begin
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itemLength := Length(ASource[itemIndex]);
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if (not ASkipEmptyItems) or (itemLength > 0) then
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begin
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if not firstItem then
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begin
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Move(PChar(AGlue)^, resultPos^, glueLength);
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Inc(resultPos, glueLength);
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end else
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firstItem := False;
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Move(PChar(ASource[itemIndex])^, resultPos^, itemLength);
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Inc(resultPos, itemLength);
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end;
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end;
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end;
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function ChildPath(const AChild, AParent: String;
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