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| //------------------------------------------------------------------------------
(* Slite is Dirty Wrapper for SLT -
* -
* Version alternative publiée sur "www.developpez.net" -
* Post : "Changer la propriété ItemIndex d'un TRadioGroup sans déclencher d'événement"
* Post Number : 8577500 -
* Post URL = "http://www.developpez.net/forums/d1576193/environnements-developpement/delphi/composants-vcl/changer-propriete-itemindex-d-tradiogroup-declencher-d-evenement/#post8577500"
* -
* Copyright ou © ou Copr. "SLT Solutions", (2006) -
* contributeur : ShaiLeTroll (2012) - Création de l'enveloppe Slite -
* contributeur : Pierre95/Guillemouze (2016) - TRadioGroupSliteHelper -
* -
* ShaiLeTroll@gmail.com -
* -
* Ce logiciel est un programme informatique servant à aider les développeurs -
* Delphi a intégrer la bibliothèque SLT en fournissant des enveloppes -
* facilitant son utilisation au sacrifice de sa fragmentation -
* -
* Ce logiciel est régi par la licence CeCILL-C soumise au droit français et -
* respectant les principes de diffusion des logiciels libres. Vous pouvez -
* utiliser, modifier et/ou redistribuer ce programme sous les conditions -
* de la licence CeCILL-C telle que diffusée par le CEA, le CNRS et l'INRIA -
* sur le site "http://www.cecill.info". -
* -
* En contrepartie de l'accessibilité au code source et des droits de copie, -
* de modification et de redistribution accordés par cette licence, il n'est -
* offert aux utilisateurs qu'une garantie limitée. Pour les mêmes raisons, -
* seule une responsabilité restreinte pèse sur l'auteur du programme, le -
* titulaire des droits patrimoniaux et les concédants successifs. -
* -
* A cet égard l'attention de l'utilisateur est attirée sur les risques -
* associés au chargement, à l'utilisation, à la modification et/ou au -
* développement et à la reproduction du logiciel par l'utilisateur étant -
* donné sa spécificité de logiciel libre, qui peut le rendre complexe à -
* manipuler et qui le réserve donc à des développeurs et des professionnels -
* avertis possédant des connaissances informatiques approfondies. Les -
* utilisateurs sont donc invités à charger et tester l'adéquation du -
* logiciel à leurs besoins dans des conditions permettant d'assurer la -
* sécurité de leurs systèmes et ou de leurs données et, plus généralement, -
* à l'utiliser et l'exploiter dans les mêmes conditions de sécurité. -
* -
* Le fait que vous puissiez accéder à cet en-tête signifie que vous avez -
* pris connaissance de la licence CeCILL-C, et que vous en avez accepté les -
* termes. -
* -
*----------------------------------------------------------------------------*)
unit Slite.Helpers;
interface
uses Winapi.Windows, Winapi.Messages,
System.Classes, System.Types, System.SysUtils, System.Variants,
System.IOUtils,
Vcl.Controls, Vcl.Forms, Vcl.Graphics, Vcl.ComCtrls, Vcl.Menus, Vcl.Themes,
Vcl.Grids, Vcl.DBGrids, Vcl.DBCGrids, Vcl.Printers, Vcl.StdCtrls, Vcl.ExtCtrls,
Data.DB, Datasnap.DBClient, Datasnap.Provider,
SLT.Common.Office.Excel;
type
{ class declarations }
TControlSliteHelper = class helper for TControl
public
procedure EnableControls();
procedure DisableControls();
function IsParent(AParentControl: TControl): Boolean;
end;
TFormSliteHelper = class helper for TForm
public
/// <summary>EnterAsTab permet de gérer un ENTER comme la touche TAB pour naviguer de controle en controle</summary>
function EnterAsTab(var Key: Char): Boolean;
procedure SelectNextControl();
procedure SelectPriorControl();
end;
TStringsSliteHelper = class helper for TStrings
public
procedure FreeAndNilObjects();
procedure ClearStringsAndObjects();
end;
TFontSliteHelper = class helper for TFont
public
function GetTextHeight(const AText: string): Integer;
function GetTextWidth(const AText: string): Integer;
public
class function GetConstratedColor(AColor: TColor): TColor;
end;
TListViewSliteDrawer = class;
TListViewSliteHelper = class helper for TListView
public
procedure SetColumnHeaderSizeable(ASizeable: Boolean);
function DrawSubItemBegin(AItem: TListItem; ASubItem: Integer; ASubItemOneBased: Boolean = True): TListViewSliteDrawer;
function GetThemedBackgroundColor(): TColor;
function GetSubItemRect(AItem: TListItem; ASubItem: Integer; out ARect: TRect; ASubItemOneBased: Boolean = True): Boolean;
function GetSubItemAtScreen(out ACol, ARow: Integer): Boolean;
function GetItemAtScreen(out ACol, ARow: Integer): Boolean;
procedure ViewInExcel(const ASheetName: string; const AColumnTypes: array of TVarType; ACheckedOnly: Boolean = False; AOnProgress: TNotifyEvent = nil; AOnBeforeActivateExcel: TNotifyEvent = nil; AShowWaitMessage: Boolean = True);
procedure ZoomColumnTitleWidth(AZoomPourcent: Integer);
end;
TListViewSliteDrawer = class(TObject)
private
FAssistant: TObject;
FCol: Integer;
FRow: Integer;
public
constructor Create(AItem: TListItem; ASubItem: Integer; ASubItemOneBased: Boolean);
destructor Destroy(); override;
procedure DrawSubItemVerticalLines();
procedure DrawSubItemCheckBox(AChecked: Boolean; AEnabled: Boolean = True);
procedure DrawSubItemRadioButton(AChecked: Boolean; AEnabled: Boolean = True);
procedure DrawSubItemImage(ABitmap: TBitmap);
procedure DrawSubItemEnd();
end;
TStringGridSliteHelper = class helper for TStringGrid
public
procedure DrawCellEmpty(ACol, ARow: Integer; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
procedure DrawCellTitleCenter(ACol, ARow: Integer; const AText: string; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
procedure DrawCellCheckBox(ACol, ARow: Integer; AChecked: Boolean; AEnabled: Boolean = True; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
procedure ZoomColumnWidth(AZoomPourcent: Integer);
end;
TDBGridSliteHelperSortDirection = (sdNone, sdAscending, sdDescending);
TDBGridSliteHelper = class helper for TDBGrid
public
function EditButtonShowDateEditor(const Msg: string; AField: TField): Boolean;
function EllipsisButtonShowComboEditor(const Msg: string; AColumn: TColumn; var AIndex: Integer): Boolean;
procedure DrawCheckBox(const Rect: TRect; Checked: Boolean; AEnabled: Boolean = True; ABackgroundColor: TColor = clNone);
procedure DrawEllipsisButton(const Rect: TRect; ABackgroundColor: TColor = clNone; AColumn: TColumn = nil; State: TGridDrawState = []);
function HitOnEllipsisButton(Column: TColumn): Boolean;
procedure DrawTextWithBackgroundColor(ABackgroundColor: TColor; const Rect: TRect; Column: TColumn; State: TGridDrawState);
function HitOnTitle(out Column: TColumn): Boolean;
function HitOnColumnCell(out Column: TColumn): Boolean;
function GetTotalWidth(): Integer;
function GetColumnTotalWidth(): Integer;
function GetColumnBounds(const AColumn: TColumn): TRect;
function GetTheoricRowHeight(): Integer;
procedure DrawColumnArrowSort(const AColumn: TColumn; ASortDirection: TDBGridSliteHelperSortDirection);
function GetThemedBackgroundColor(): TColor;
function ThemeUseColumnColor(): Boolean;
procedure ZoomColumnTitleWidth(AZoomPourcent: Integer);
end;
TDBGridSliteSortAssistant = class(TObject)
public
type
TOnBeforeSortEvent = procedure(AColumn: TColumn; var AAllowedSort: Boolean) of object;
strict private
type
TSortedColumn = record
Column: TColumn;
Order: TDBGridSliteHelperSortDirection;
FlagColumnMoved: Boolean;
end;
strict private
FDBGrid: TDBGrid;
FDataSetProxy: Datasnap.DBClient.TClientDataSet;
FDataSetProvider: Datasnap.Provider.TDataSetProvider;
FSortedColumn: TSortedColumn;
FOnBeforeSort: TOnBeforeSortEvent;
FOriginalDataSet: TDataSet;
FOriginalWndMethod: TWndMethod;
FOriginalColumnMovedEventHandler: Vcl.Grids.TMovedEvent;
FOriginalTitleClickEventHandler: TDBGridClickEvent;
procedure ColumnMovedEventHandler(Sender: TObject; FromIndex, ToIndex: Integer);
procedure TitleClickEventHandler(Column: TColumn);
procedure NewWndMethod(var Message: TMessage);
function IsAllowedSort(Column: TColumn): Boolean;
procedure SetOriginalDataSet(Value: TDataSet);
function RAZSort(): TDBGridSliteHelperSortDirection;
function GetColumnOrdered(): TColumn;
procedure SetColumnOrdered(Column: TColumn);
public
constructor Create(ADBGrid: TDBGrid);
destructor Destroy(); override;
procedure Refresh();
property DataSet: TDataSet read FOriginalDataSet write SetOriginalDataSet;
property DataSetOrdered: TClientDataSet read FDataSetProxy;
property ColumnOrdered: TColumn read GetColumnOrdered write SetColumnOrdered;
property OnBeforeSort: TOnBeforeSortEvent read FOnBeforeSort write FOnBeforeSort;
end;
TDBCGridSliteHelper = class helper for TDBCtrlGrid
public
procedure AdjustSizeAccording(MaxHeight, MaxWidth: Integer);
procedure DrawSelection(Index: Integer; ASelectedColor: TColor = clNone);
function ThemeUseSelectedColor(): Boolean;
end;
TDataSetSliteHelperViewInExcelProgressInfo = TSLTExcelDataSetExporter.TProgressInfo;
TDataSetSliteHelper = class helper for TDataSet
public
procedure ViewInExcel(const ASheetName: string; const AFieldsNames, ATitles: array of string; AOnProgress: TNotifyEvent = nil; AOnBeforeActivateExcel: TNotifyEvent = nil; AShowWaitMessage: Boolean = True; ACellWithBorder: Boolean = False);
function ViewInExcelProgressInfo(AProgressSender: TObject): TDataSetSliteHelperViewInExcelProgressInfo;
function AddCalculatedField(const Name: string; DataType: TFieldType; Size: Integer = 0; Required: Boolean = False): TField;
procedure ExportToCSV(const AFileName: TFileName; AWithHeader: Boolean; ASeparator: Char = ';'; AQuote: Char = '"');
end;
TFieldSliteHelper = class helper for TField
public
function IsChanged(): Boolean;
end;
TFieldDefsSliteHelper = class helper for TFieldDefs
public
function AddCalculated(const Name: string; DataType: TFieldType; Size: Integer = 0; Required: Boolean = False): TField;
end;
TCheckBoxSliteHelper = class helper for TCheckBox
private
procedure SetSilentChecked(const Value: Boolean);
public
property SilentChecked: Boolean write SetSilentChecked;
end;
TRadioGroupSliteHelper = class helper for TRadioGroup
private
procedure SetSilentItemIndex(const Value: Integer);
public
property SilentItemIndex: Integer write SetSilentItemIndex;
end;
TCanvasSliteHelper = class helper for TCanvas
public
procedure DrawCheckBox(const Rect: TRect; Checked: Boolean);
procedure DrawArrow(X1, Y1, X2, Y2: Integer; LineWidth: Integer; TriangleRadius: Integer; const LineText: string = '');
procedure DrawLine(X1, Y1, X2, Y2: Integer; LineWidth: Integer);
public
class function GetConstratedColor(AColor: TColor): TColor;
class function GetGrayedColor(AColor: TColor): TColor;
end;
TStyleManagerSliteAssistant = class(TObject)
public
class procedure BuildChangeStyleMenu(AMenu: TMenuItem; const ADefaultStyle: string = ''); overload;
class procedure SelectStyleInMenu(AMenu: TMenuItem; const ASelectedStyle: string);
class procedure ChangeStyle(const AStyle: string);
class function GetThemedBackgroundColor(): TColor;
class procedure ChangePanelParentColorFromParentBackground(RootComponent: TComponent);
end;
TPrinterSliteHelper = class helper for TPrinter
public
class function SelectPrinter(const Msg: string; var PrinterName: string): Boolean;
end;
TAnimateSliteHelper = class helper for TAnimate
public
procedure ActiveThemedTabSheetTransparence();
end;
TTabSheetSliteAssistant = class(TObject)
public
class function GetThemedBackgroundColor(): TColor;
end;
TFileSliteHelper = record helper for System.IOUtils.TFile
class function CompareVersion(const V1, V2: string): Integer; static;
end;
implementation
uses System.Math, System.StrUtils,
SLT.Common.ClassesEx,
SLT.Controls.VCL.ControlsEx, SLT.Controls.VCL.GraphicsEx, SLT.Common.StrUtilsEx,
SLT.Controls.VCL.ComCtrlsEx, SLT.Controls.VCL.GridsEx, SLT.Controls.VCL.DBGridsEx, SLT.Controls.VCL.DBCGridsEx,
SLT.Controls.VCL.PrintersEx,
SLT.Controls.VCL.ThemesEx;
resourcestring
SErrorMustCreateFieldBeforeAddCalculated = 'Must call protected method CreateFields before use create calculated field at runtime';
{ TControlSliteHelper }
//------------------------------------------------------------------------------
procedure TControlSliteHelper.EnableControls();
begin
TControlSLTToolHelp.SetEnabledControlRecursive(Self, True, True);
end;
//------------------------------------------------------------------------------
function TControlSliteHelper.IsParent(AParentControl: TControl): Boolean;
begin
Result := TControlSLTToolHelp.IsParent(AParentControl, Self);
end;
//------------------------------------------------------------------------------
procedure TControlSliteHelper.DisableControls();
begin
TControlSLTToolHelp.SetEnabledControlRecursive(Self, False, True);
end;
{ TFormSliteHelper }
//------------------------------------------------------------------------------
function TFormSliteHelper.EnterAsTab(var Key: Char): Boolean;
begin
if Key = Chr(CarriageReturn) then
begin
Result := True;
if LongBool(GetAsyncKeyState(VK_SHIFT) and $8000) then
SelectPriorControl()
else
SelectNextControl();
Key := #0; // Evite le "dong" !
end
else
Result := False;
end;
//------------------------------------------------------------------------------
procedure TFormSliteHelper.SelectNextControl();
begin
// TControl.SelectNext est une méthode protégée
// le plus simple pour passer au controle suivant c'est le message Windows
Self.Perform(WM_NEXTDLGCTL, 0, 0);
end;
//------------------------------------------------------------------------------
procedure TFormSliteHelper.SelectPriorControl();
begin
// If wParam is zero, the next control receives the focus; otherwise, the previous control with the WS_TABSTOP style receives the focus.
Self.Perform(WM_NEXTDLGCTL, 1, 0);
end;
{ TStringsSliteHelper }
//------------------------------------------------------------------------------
procedure TStringsSliteHelper.ClearStringsAndObjects();
begin
TStringsSLTToolHelp.ClearStringsAndObjects(Self);
end;
//------------------------------------------------------------------------------
procedure TStringsSliteHelper.FreeAndNilObjects();
begin
TStringsSLTToolHelp.FreeAndNilObjects(Self);
end;
{ TFontSliteHelper }
//------------------------------------------------------------------------------
class function TFontSliteHelper.GetConstratedColor(AColor: TColor): TColor;
begin
Result := TCanvasSLTAssistant.GetConstratedColor(AColor);
end;
//------------------------------------------------------------------------------
function TFontSliteHelper.GetTextHeight(const AText: string): Integer;
begin
Result := TFontSLTToolHelp.GetTextHeight(AText, Self)
end;
//------------------------------------------------------------------------------
function TFontSliteHelper.GetTextWidth(const AText: string): Integer;
begin
Result := TFontSLTToolHelp.GetTextWidth(AText, Self);
end;
{ TListViewSliteHelper }
//------------------------------------------------------------------------------
function TListViewSliteHelper.DrawSubItemBegin(AItem: TListItem; ASubItem: Integer; ASubItemOneBased: Boolean): TListViewSliteDrawer;
begin
// Remarque sur ASubItem et ASubItemOneBased par rapport à "http://docwiki.embarcadero.com/Libraries/en/Vcl.ComCtrls.TLVAdvancedCustomDrawSubItemEvent"
// sprevot : Le 2014-02-20, L'article en Anglais a été amélioré, suite à un Feedback que j'ai laissé sur 'documentation@embarcadero.com'
// Sentence d'origine : The SubItem parameter is the index of the subitem of that list item in its SubItems property.
// Sentence ajoutée : SubItem is one-based, facilitating the call to some WinAPIs like GetSubItemRect. However, because SubItems is a TStrings and therefore zero-based, you must use SubItem - 1.
Result := TListViewSliteDrawer.Create(AItem, ASubItem, ASubItemOneBased);
end;
//------------------------------------------------------------------------------
function TListViewSliteHelper.GetItemAtScreen(out ACol, ARow: Integer): Boolean;
begin
with TListViewSLTAssistant.Create(Self) do
try
Result := GetItemAtScreen(ACol, ARow);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TListViewSliteHelper.GetSubItemAtScreen(out ACol, ARow: Integer): Boolean;
begin
with TListViewSLTAssistant.Create(Self) do
try
Result := GetSubItemAtScreen(ACol, ARow);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TListViewSliteHelper.GetSubItemRect(AItem: TListItem; ASubItem: Integer; out ARect: TRect; ASubItemOneBased: Boolean = True): Boolean;
begin
with TListViewSLTAssistant.Create(Self) do
try
Result := GetSubItemRect(ASubItem - Ord(ASubItemOneBased), AItem.Index, ARect);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TListViewSliteHelper.GetThemedBackgroundColor(): TColor;
begin
with TListViewSLTAssistant.Create(Self) do
try
Result := GetThemedBackgroundColor();
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TListViewSliteHelper.SetColumnHeaderSizeable(ASizeable: Boolean);
begin
with TListViewSLTAssistant.Create(Self) do
try
ColumnHeaderSizeable := ASizeable;
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TListViewSliteHelper.ViewInExcel(const ASheetName: string; const AColumnTypes: array of TVarType; ACheckedOnly: Boolean = False; AOnProgress: TNotifyEvent = nil; AOnBeforeActivateExcel: TNotifyEvent = nil; AShowWaitMessage: Boolean = True);
begin
with TSLTExcelListViewer.Create(Self) do
try
OnProgress := AOnProgress;
OnBeforeActivateExcel := AOnBeforeActivateExcel;
CheckedOnly := ACheckedOnly;
ShowWaitMessage := AShowWaitMessage;
ViewInExcel(ASheetName, AColumnTypes);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TListViewSliteHelper.ZoomColumnTitleWidth(AZoomPourcent: Integer);
begin
with TListViewSLTAssistant.Create(Self) do
try
ZoomColumnTitleWidth(AZoomPourcent);
finally
Free();
end;
end;
{ TListViewSliteDrawer }
//------------------------------------------------------------------------------
constructor TListViewSliteDrawer.Create(AItem: TListItem; ASubItem: Integer; ASubItemOneBased: Boolean);
begin
inherited Create();
FAssistant := TListViewSLTAssistant.Create(AItem.ListView);
FCol := ASubItem;
FRow := AItem.Index;
// ASubItem :
// Si ASubItemOneBased alors c'est un sous-item de 1 à n (Zéro est toléré comme Item mais mieux vaut éviter d'utiliser comme tel avec des fonctions DrawSubItem...)
// Sinon c'est obligatoirement un sous-item, l'indice de 0 à n-1 comme dans SubStrings
// Voir commentaire dans TListViewSliteHelper.DrawSubItemBegin
if not ASubItemOneBased then
Inc(FCol); // on transforme du zero-based en one-based
TListViewSLTAssistant(FAssistant).DrawPrepare(FCol, FRow);
end;
//------------------------------------------------------------------------------
destructor TListViewSliteDrawer.Destroy();
begin
FreeAndNil(FAssistant);
inherited Destroy();
end;
//------------------------------------------------------------------------------
procedure TListViewSliteDrawer.DrawSubItemCheckBox(AChecked, AEnabled: Boolean);
begin
TListViewSLTAssistant(FAssistant).DrawItemCheckBox(FCol, FRow, AChecked, AEnabled);
end;
//------------------------------------------------------------------------------
procedure TListViewSliteDrawer.DrawSubItemEnd();
begin
TListViewSLTAssistant(FAssistant).DrawUnprepare(FCol, FRow);
Free();
end;
//------------------------------------------------------------------------------
procedure TListViewSliteDrawer.DrawSubItemImage(ABitmap: TBitmap);
begin
TListViewSLTAssistant(FAssistant).DrawItemImage(FCol, FRow, ABitmap);
end;
//------------------------------------------------------------------------------
procedure TListViewSliteDrawer.DrawSubItemRadioButton(AChecked, AEnabled: Boolean);
begin
TListViewSLTAssistant(FAssistant).DrawItemRadioButton(FCol, FRow, AChecked, AEnabled);
end;
//------------------------------------------------------------------------------
procedure TListViewSliteDrawer.DrawSubItemVerticalLines();
begin
TListViewSLTAssistant(FAssistant).DrawItemVerticalLines(FCol, FRow);
end;
{ TStyleManagerSliteAssistant }
//------------------------------------------------------------------------------
class procedure TStyleManagerSliteAssistant.BuildChangeStyleMenu(AMenu: TMenuItem; const ADefaultStyle: string = '');
begin
TStyleManagerSLTAssistant.BuildChangeStyleMenu(AMenu, TStyleManagerSLTAssistant.StyleClickDefaultEventHandler, ADefaultStyle);
end;
//------------------------------------------------------------------------------
class procedure TStyleManagerSliteAssistant.ChangePanelParentColorFromParentBackground(RootComponent: TComponent);
var
I: Integer;
Cpt: TComponent;
begin
// En local, les postes développeurs sous Vista\Seven,
// En Citrix, les environnements semblent être sous Window 2003 ou Window 2008 sous le thème classique (Win2K)
// Avec le Thème Aero, une application avec coloration de la TForm nécessite
// . ParentBackground si elle compilée avec le Manifest Common Control Version 6.0 fourni par Embarcadero, ParentBackground provoque une transparence permettant de voir la couleur de fond (cela peut-être une image)
// . ParentColor si elle est compilée SANS les thèmes, Si ParentColor est à True cela propage la couleur, problème par défaut le TPanel force cette valeur à False depuis l'apparition de ParentBackground
// Avec le Thème classique (Win2K), une application avec coloration de la TForm nécessite
// . ParentColor si elle est compilée AVEC ou SANS les thèmes
if not VCL.Themes.StyleServices.Enabled then
begin
// ParentBackground est sans effet à moins que les thèmes XP ne soient activés.
// Il faut forcer ParentColor à True alors que sur les TPanel c'est par défaut à False
for I := 0 to RootComponent.ComponentCount - 1 do
begin
Cpt := RootComponent.Components[I];
if Cpt is TPanel then
if TPanel(Cpt).ParentBackground then
TPanel(Cpt).ParentColor := True;
end;
end;
end;
//------------------------------------------------------------------------------
class procedure TStyleManagerSliteAssistant.ChangeStyle(const AStyle: string);
begin
TStyleManager.TrySetStyle(AStyle, False);
end;
//------------------------------------------------------------------------------
class function TStyleManagerSliteAssistant.GetThemedBackgroundColor(): TColor;
begin
Result := TStyleManagerSLTAssistant.GetThemedBackgroundColor();
end;
//------------------------------------------------------------------------------
class procedure TStyleManagerSliteAssistant.SelectStyleInMenu(AMenu: TMenuItem; const ASelectedStyle: string);
var
I: Integer;
begin
for I := 0 to AMenu.Count - 1 do
begin
if SameText(AMenu.Items[I].Caption, ASelectedStyle) then
begin
TStyleManagerSLTAssistant.StyleClickDefaultEventHandler(AMenu.Items[I]);
Exit;
end;
end;
end;
{ TStringGridSliteHelper }
//------------------------------------------------------------------------------
procedure TStringGridSliteHelper.DrawCellCheckBox(ACol, ARow: Integer; AChecked: Boolean; AEnabled: Boolean = True; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
begin
with TStringGridSLTAssistant.Create(Self) do
try
DrawCellCheckBox(ACol, ARow, AChecked, AEnabled, ABackgroundColor, AState);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TStringGridSliteHelper.DrawCellEmpty(ACol, ARow: Integer; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
begin
with TStringGridSLTAssistant.Create(Self) do
try
DrawCellEmpty(ACol, ARow, ABackgroundColor, AState);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TStringGridSliteHelper.DrawCellTitleCenter(ACol, ARow: Integer; const AText: string; ABackgroundColor: TColor = clNone; AState: TGridDrawState = []);
begin
with TStringGridSLTAssistant.Create(Self) do
try
DrawCellTitleCenter(ACol, ARow, AText, ABackgroundColor, AState);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TStringGridSliteHelper.ZoomColumnWidth(AZoomPourcent: Integer);
begin
with TStringGridSLTAssistant.Create(Self) do
try
ZoomColumnWidth(AZoomPourcent);
finally
Free();
end;
end;
{ TDBGridSliteHelper }
type
TDBGridSliteHack = class(TDBGrid);
//------------------------------------------------------------------------------
procedure TDBGridSliteHelper.DrawCheckBox(const Rect: TRect; Checked: Boolean; AEnabled: Boolean = True; ABackgroundColor: TColor = clNone);
begin
with TDBGridSLTAssistant.Create(Self) do
try
DrawCheckBox(Rect, Checked, AEnabled, ABackgroundColor);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteHelper.DrawColumnArrowSort(const AColumn: TColumn; ASortDirection: TDBGridSliteHelperSortDirection);
var
csd: TDBGridSLTAssistant.TColumnSortDirection;
begin
with TDBGridSLTAssistant.Create(Self) do
try
csd := csdNone;
if ASortDirection = sdAscending then
csd := csdAscending
else if ASortDirection = sdDescending then
csd := csdDescending;
DrawColumnArrowSort(AColumn, csd);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteHelper.DrawEllipsisButton(const Rect: TRect; ABackgroundColor: TColor = clNone; AColumn: TColumn = nil; State: TGridDrawState = []);
begin
with TDBGridSLTAssistant.Create(Self) do
try
DrawEllipsisButton(Rect, ABackgroundColor, AColumn, State);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteHelper.DrawTextWithBackgroundColor(ABackgroundColor: TColor; const Rect: TRect; Column: TColumn; State: TGridDrawState);
begin
with TDBGridSLTAssistant.Create(Self) do
try
DrawTextWithBackgroundColor(ABackgroundColor, Rect, Column, State);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.EditButtonShowDateEditor(const Msg: string; AField: TField): Boolean;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := EditButtonInputDatePicker(Msg, AField);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.EllipsisButtonShowComboEditor(const Msg: string; AColumn: TColumn; var AIndex: Integer): Boolean;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := ShowCombo(Msg, AColumn.PickList, AIndex);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.GetColumnBounds(const AColumn: TColumn): TRect;
var
ColR: TRect;
begin
with TDBGridSLTAssistant.Create(Self) do
try
ColR := GetColumnScreenRect(AColumn);
Result.TopLeft := Self.ScreenToClient(ColR.TopLeft);
Result.BottomRight := Self.ScreenToClient(ColR.BottomRight);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.GetColumnTotalWidth(): Integer;
var
I: Integer;
begin
Result := 0;
for I := 0 to Self.Columns.Count - 1 do
Inc(Result, Self.Columns[I].Width);
if dgColLines in Self.Options then
Inc(Result, Self.Columns.Count);
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.GetThemedBackgroundColor(): TColor;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := GetThemedBackgroundColor();
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.GetTheoricRowHeight(): Integer;
begin
Result := TDBGridSliteHack(Self).DefaultRowHeight;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.GetTotalWidth(): Integer;
begin
Result := GetColumnTotalWidth() + GetSystemMetrics(SM_CXVSCROLL);
if dgIndicator in Self.Options then
Inc(Result, GetSystemMetrics(SM_CXVSCROLL));
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.HitOnColumnCell(out Column: TColumn): Boolean;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := HitOnColumnCell(Column);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.HitOnEllipsisButton(Column: TColumn): Boolean;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := HitOnEllipsisButton(Column);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.HitOnTitle(out Column: TColumn): Boolean;
begin
with TDBGridSLTAssistant.Create(Self) do
try
Result := HitOnTitle(Column);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBGridSliteHelper.ThemeUseColumnColor(): Boolean;
begin
Result := TDBGridSLTAssistant.ThemeUseColumnColor;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteHelper.ZoomColumnTitleWidth(AZoomPourcent: Integer);
begin
with TDBGridSLTAssistant.Create(Self) do
try
ZoomColumnTitleWidth(AZoomPourcent);
finally
Free();
end;
end;
{ TDBGridSliteSortAssistant }
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.ColumnMovedEventHandler(Sender: TObject; FromIndex, ToIndex: Integer);
begin
// La Colonne en deplacement est celle du Tri en cours
if FSortedColumn.Column = FDBGrid.Columns[ToIndex] then
begin
FDBGrid.DrawColumnArrowSort(FDBGrid.Columns.Items[ToIndex], FSortedColumn.Order);
FSortedColumn.FlagColumnMoved := FromIndex <> ToIndex;
end
else
begin
// La Colonne qui sera remplacée est celle du Tri en cours
if FSortedColumn.Column = FDBGrid.Columns[ToIndex] then
begin
FDBGrid.DrawColumnArrowSort(FDBGrid.Columns.Items[FromIndex], FSortedColumn.Order);
FSortedColumn.FlagColumnMoved := FromIndex <> ToIndex;
end;
end;
if Assigned(FOriginalColumnMovedEventHandler) then
FOriginalColumnMovedEventHandler(Sender, FromIndex, ToIndex);
end;
//------------------------------------------------------------------------------
constructor TDBGridSliteSortAssistant.Create(ADBGrid: TDBGrid);
const
ERR_UNASSISTED_CLASS = 'La Classe d''Assistance %s n''accepte que les instance de la classe %s';
DEFAULT_PACKET_RECORDS = 25; // 25 lignes visibles dans une DBGrid, c'est une valeur généralement utilisée
begin
inherited Create();
if not Assigned(ADBGrid) then
raise Exception.CreateFmt(ERR_UNASSISTED_CLASS, [ClassName(), TDBGrid.ClassName()]);
FDBGrid := ADBGrid;
FOriginalWndMethod := FDBGrid.WindowProc;
FDBGrid.WindowProc := NewWndMethod;
FOriginalColumnMovedEventHandler := FDBGrid.OnColumnMoved;
FDBGrid.OnColumnMoved := ColumnMovedEventHandler;
FOriginalTitleClickEventHandler := FDBGrid.OnTitleClick;
FDBGrid.OnTitleClick := TitleClickEventHandler;
FDataSetProxy := Datasnap.DBClient.TClientDataSet.Create(nil);
FDataSetProvider := Datasnap.Provider.TDataSetProvider.Create(nil);
FDataSetProxy.SetProvider(FDataSetProvider);
if TDBGridSliteHack(ADBGrid).DefaultRowHeight > 0 then
FDataSetProxy.PacketRecords := System.Math.Ceil(ADBGrid.Height / TDBGridSliteHack(ADBGrid).DefaultRowHeight)
else
FDataSetProxy.PacketRecords := DEFAULT_PACKET_RECORDS;
if Assigned(FDBGrid) and Assigned(FDBGrid.DataSource) then
begin
FOriginalDataSet := FDBGrid.DataSource.DataSet;
FDataSetProvider.DataSet := FOriginalDataSet;
FDBGrid.DataSource.DataSet := FDataSetProxy;
if Assigned(FOriginalDataSet) then
begin
FDataSetProxy.Open();
// Attribuez la valeur false à LogChanges si vous n'avez pas l'intention de mettre à jour la base de données avec les modifications de l'ensemble de données client
FDataSetProxy.LogChanges := False;
end;
end;
end;
//------------------------------------------------------------------------------
destructor TDBGridSliteSortAssistant.Destroy();
begin
if Assigned(FDBGrid) and Assigned(FDBGrid.DataSource) and Assigned(FDataSetProvider) then
FDBGrid.DataSource.DataSet := FOriginalDataSet;
FreeAndNil(FDataSetProxy);
FreeAndNil(FDataSetProvider);
FOriginalColumnMovedEventHandler := FDBGrid.OnColumnMoved;
FOriginalTitleClickEventHandler := FDBGrid.OnTitleClick;
if Assigned(FDBGrid) then
FDBGrid.WindowProc := FOriginalWndMethod;
inherited Destroy();
end;
//------------------------------------------------------------------------------
function TDBGridSliteSortAssistant.GetColumnOrdered(): TColumn;
begin
Result := FSortedColumn.Column;
end;
//------------------------------------------------------------------------------
function TDBGridSliteSortAssistant.IsAllowedSort(Column: TColumn): Boolean;
begin
Result := True;
if Assigned(FOnBeforeSort) then
FOnBeforeSort(Column, Result);
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.NewWndMethod(var Message: TMessage);
begin
FOriginalWndMethod(Message);
if (Message.Msg = WM_HSCROLL) or (Message.Msg = WM_SIZE) then
if Assigned(FSortedColumn.Column) then
FDBGrid.DrawColumnArrowSort(FSortedColumn.Column, FSortedColumn.Order);
end;
//------------------------------------------------------------------------------
function TDBGridSliteSortAssistant.RAZSort(): TDBGridSliteHelperSortDirection;
begin
Result := FSortedColumn.Order;
if Assigned(FDBGrid) then
FDBGrid.DrawColumnArrowSort(nil, sdNone);
FSortedColumn.Column := nil;
FSortedColumn.Order := sdNone;
FSortedColumn.FlagColumnMoved := False;
if FDataSetProxy.IndexName <> '' then
FDataSetProxy.IndexName := '';
FDataSetProxy.IndexDefs.Clear();
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.Refresh();
begin
if Assigned(FDataSetProvider) and Assigned(FDataSetProvider.DataSet) and Assigned(FDataSetProxy) and FDataSetProxy.Active then
FDataSetProxy.Refresh();
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.SetColumnOrdered(Column: TColumn);
var
OldOrder: TDBGridSliteHelperSortDirection;
IndexName: String;
begin
// Remise à zéro du tri en cours
OldOrder := RAZSort();
if Assigned(FDBGrid) and Assigned(Column) and (Column.Grid = FDBGrid) and FDataSetProxy.Active then
begin
// Est-ce bien une Colonne Triable ?
if Assigned(Column.Field) and IsAllowedSort(Column) then
begin
// Changement de l'ordre de tri selon celui qui était actif précédemment
case OldOrder of
sdNone, sdDescending :
begin
FSortedColumn.Column := Column;
FSortedColumn.Order := sdAscending;
FDBGrid.DrawColumnArrowSort(FSortedColumn.Column, sdAscending); // Attention, cela modifie la propriété Width
IndexName := Copy('ASC_' + Column.FieldName, 1, 30); // 30 = Taille maximum
FDataSetProxy.AddIndex(IndexName, Column.FieldName, [ixCaseInsensitive]);
end;
sdAscending :
begin
FSortedColumn.Column := Column;
FSortedColumn.Order := sdDescending;
FDBGrid.DrawColumnArrowSort(FSortedColumn.Column, sdDescending); // Attention, cela modifie la propriété Width
IndexName := Copy('DESC_' + Column.FieldName, 1, 30); // 30 = Taille maximum
FDataSetProxy.AddIndex(IndexName, Column.FieldName, [ixDescending, ixCaseInsensitive]);
end;
end;
end;
// Application du Tri !
try
FDataSetProxy.IndexDefs.Update();
FDataSetProxy.IndexName := IndexName;
except
RAZSort();
end;
end;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.SetOriginalDataSet(Value: TDataSet);
begin
FOriginalDataSet := Value;
FDataSetProxy.Close();
RAZSort();
FDataSetProvider.DataSet := Value;
if Assigned(FDBGrid) and Assigned(FDBGrid.DataSource) and Assigned(Value) then
begin
FDataSetProxy.SetProvider(FDataSetProvider);
FDataSetProxy.Open();
// Attribuez la valeur false à LogChanges si vous n'avez pas l'intention de mettre à jour la base de données avec les modifications de l'ensemble de données client
FDataSetProxy.LogChanges := False;
end;
end;
//------------------------------------------------------------------------------
procedure TDBGridSliteSortAssistant.TitleClickEventHandler(Column: TColumn);
begin
// Protection contre le déplacement de colonne
if FSortedColumn.FlagColumnMoved then begin
FSortedColumn.FlagColumnMoved := False;
Exit;
end;
SetColumnOrdered(Column);
if Assigned(FOriginalTitleClickEventHandler) then
FOriginalTitleClickEventHandler(Column);
end;
{ TDBCGridSliteHelper }
//------------------------------------------------------------------------------
procedure TDBCGridSliteHelper.AdjustSizeAccording(MaxHeight, MaxWidth: Integer);
begin
with TDBCtrlGridSLTAssistant.Create(Self) do
try
AdjustSizeAccording(MaxHeight, MaxWidth);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TDBCGridSliteHelper.DrawSelection(Index: Integer; ASelectedColor: TColor = clNone);
begin
with TDBCtrlGridSLTAssistant.Create(Self) do
try
DrawSelection(Index, ASelectedColor);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDBCGridSliteHelper.ThemeUseSelectedColor(): Boolean;
begin
Result := TDBCtrlGridSLTAssistant.ThemeUseSelectedColor;
end;
{ TDataSetSliteHelper }
//------------------------------------------------------------------------------
function TDataSetSliteHelper.AddCalculatedField(const Name: string; DataType: TFieldType; Size: Integer = 0; Required: Boolean = False): TField;
begin
// Avant de forcer la création d'un champ calculé, il faut créer les champs persistants définis.
if Self.Fields.Count = 0 then
raise EDatabaseError.CreateRes(@SErrorMustCreateFieldBeforeAddCalculated);
Result := Self.FindField(Name);
if not Assigned(Result) then
begin
Result := DefaultFieldClasses[DataType].Create(Self);
Result.FieldName := Name;
Result.Name := Name;
if Self is TClientDataSet then
Result.FieldKind := fkInternalCalc
else
Result.FieldKind := fkCalculated;
Result.DataSet := Self;
end;
end;
//------------------------------------------------------------------------------
procedure TDataSetSliteHelper.ExportToCSV(const AFileName: TFileName; AWithHeader: Boolean; ASeparator: Char = ';'; AQuote: Char = '"');
var
fExport: TextFile;
Data: TStringDynArray;
sLigne, sCol: string;
I: Integer;
FBookmark: TBookmark;
begin
// RFC 4180 - Common Format and MIME Type for Comma-Separated Values (CSV) Files
// The last field in the record must not be followed by a comma = La dernière colonne ne se termine pas par un séparateur !
AssignFile(fExport, AFileName);
Rewrite(fExport);
try
SetLength(Data, FieldCount);
// Ligne d'en-tête
if AWithHeader then
begin
for I := 0 to FieldCount - 1 do
Data[I] := Fields[i].FieldName;
sLigne := SLT.Common.StrUtilsEx.ImplodeLazy(Data, ASeparator);
Writeln(fExport, sLigne);
end;
// Enregistrements
DisableControls();
try
FBookmark := Bookmark;
try
First();
while not Eof do
begin
for I := 0 to FieldCount - 1 do
begin
sCol := Fields[i].AsString;
if ContainsStr(sCol, ASeparator) then
sCol := AQuote + sCol + AQuote;
Data[I] := sCol;
end;
sLigne := SLT.Common.StrUtilsEx.ImplodeLazy(Data, ASeparator);
Writeln(fExport, sLigne);
Next();
end;
finally
Bookmark := FBookmark;
end;
finally
EnableControls();
end;
finally
CloseFile(fExport);
end;
end;
//------------------------------------------------------------------------------
procedure TDataSetSliteHelper.ViewInExcel(const ASheetName: string; const AFieldsNames, ATitles: array of string; AOnProgress: TNotifyEvent = nil; AOnBeforeActivateExcel: TNotifyEvent = nil; AShowWaitMessage: Boolean = True; ACellWithBorder: Boolean = False);
begin
Assert(Length(AFieldsNames) = Length(ATitles), 'TDataSetSliteHelper.ViewInExcel : Length(AFieldsNames) <> Length(ATitles)');
with TSLTExcelDataSetExporter.Create(Self) do
try
OnProgress := AOnProgress;
OnBeforeActivateExcel := AOnBeforeActivateExcel;
ShowWaitMessage := AShowWaitMessage;
CellWithBorder := ACellWithBorder;
ViewInExcel(ASheetName, AFieldsNames, ATitles);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
function TDataSetSliteHelper.ViewInExcelProgressInfo(AProgressSender: TObject): TDataSetSliteHelperViewInExcelProgressInfo;
begin
if AProgressSender is TSLTExcelDataSetExporter then
Result := TSLTExcelDataSetExporter(AProgressSender).ProgressInfo
else
Result.Position := 0;
end;
{ TFieldSliteHelper }
//------------------------------------------------------------------------------
function TFieldSliteHelper.IsChanged(): Boolean;
var
OldV, NewV: Variant;
begin
OldV := Self.OldValue;
NewV := Self.NewValue;
Result := (VarType(OldV) <> VarType(NewV)) or (OldV <> NewV);
end;
{ TFieldDefsSliteHelper }
//------------------------------------------------------------------------------
function TFieldDefsSliteHelper.AddCalculated(const Name: string; DataType: TFieldType; Size: Integer = 0; Required: Boolean = False): TField;
begin
// Avant de forcer la création d'un champ calculé, il faut créer les champs persistants définis.
if Self.DataSet.Fields.Count = 0 then
raise EDatabaseError.CreateRes(@SErrorMustCreateFieldBeforeAddCalculated);
Result := Self.DataSet.FindField(Name);
if not Assigned(Result) then
begin
Result := Self.DataSet.AddCalculatedField(Name, DataType, Size, Required);
Self.Add(Name, DataType, Size, Required);
end;
end;
{ TCheckBoxSliteHelper }
//------------------------------------------------------------------------------
procedure TCheckBoxSliteHelper.SetSilentChecked(const Value: Boolean);
var
ooc: TNotifyEvent;
begin
ooc := Self.OnClick;
Self.OnClick := nil;
try
Self.Checked := Value;
finally
Self.OnClick := ooc;
end;
end;
{ TRadioGroupSliteHelper }
//------------------------------------------------------------------------------
procedure TRadioGroupSliteHelper.SetSilentItemIndex(const Value: Integer);
var
ooc: TNotifyEvent;
begin
ooc := Self.OnClick;
Self.OnClick := nil;
try
Self.ItemIndex:= Value
finally
Self.OnClick := ooc;
end;
end;
{ TPrinterSliteHelper }
//------------------------------------------------------------------------------
class function TPrinterSliteHelper.SelectPrinter(const Msg: string; var PrinterName: string): Boolean;
begin
Result := TPrinterSLTAssistant.SelectPrinter(Msg, PrinterName);
end;
{ TCanvasSliteHelper }
//------------------------------------------------------------------------------
procedure TCanvasSliteHelper.DrawArrow(X1, Y1, X2, Y2: Integer; LineWidth: Integer; TriangleRadius: Integer; const LineText: string = '');
begin
with TCanvasSLTAssistant.Create(Self) do
try
DrawArrow(X1, Y1, X2, Y2, LineWidth, TriangleRadius, LineText);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TCanvasSliteHelper.DrawCheckBox(const Rect: TRect; Checked: Boolean);
begin
with TCanvasSLTAssistant.Create(Self) do
try
DrawCheckBox(Rect, Checked);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
procedure TCanvasSliteHelper.DrawLine(X1, Y1, X2, Y2, LineWidth: Integer);
begin
with TCanvasSLTAssistant.Create(Self) do
try
DrawLine(X1, Y1, X2, Y2, LineWidth);
finally
Free();
end;
end;
//------------------------------------------------------------------------------
class function TCanvasSliteHelper.GetConstratedColor(AColor: TColor): TColor;
begin
Result := TCanvasSLTAssistant.GetConstratedColor(AColor);
end;
//------------------------------------------------------------------------------
class function TCanvasSliteHelper.GetGrayedColor(AColor: TColor): TColor;
begin
Result := TCanvasSLTAssistant.GetGrayedColor(AColor);
end;
{ TAnimateSliteHelper }
//------------------------------------------------------------------------------
procedure TAnimateSliteHelper.ActiveThemedTabSheetTransparence();
begin
with TAnimateSLTAssistant.Create(Self) do
try
ActiveThemedTabSheetTransparence();
finally
Free();
end;
end;
{ TFileSliteHelper }
//------------------------------------------------------------------------------
class function TFileSliteHelper.CompareVersion(const V1, V2: string): Integer;
begin
Result := SLT.Common.StrUtilsEx.CompareVersion(V1, V2);
end;
{ TTabSheetSliteAssistant }
//------------------------------------------------------------------------------
class function TTabSheetSliteAssistant.GetThemedBackgroundColor(): TColor;
begin
Result := TTabSheetSLTAssistant.GetThemedBackgroundColor();
end;
end. |
Discussion :
Changer la propriété ItemIndex d'un TRadioGroup sans déclencher d'événement
Envoyé par ShaiLeTroll
quelle mémoire !
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