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| unit Govel.BindNavigator;
interface
uses
System.SysUtils, System.Classes,
System.UITypes,
FMX.Types, FMX.Controls, FMX.Layouts, FMX.Objects, FMX.StdCtrls,
Data.Bind.Controls, Data.Bind.Components,
FMX.Bind.Navigator;
/// range TNavigateButton in three groups
const NavigatorScrollings = [nbFirst, nbPrior, nbNext, nbLast,nbRefresh];
NavigatorValidations = [nbInsert, nbDelete, nbEdit, nbPost, nbCancel,
nbApplyUpdates];
NavigatorCancelations = [nbDelete,nbCancel,nbCancelUpdates];
type
TColoredBindNavigator = class;
TGlyphColors = class(TPersistent)
private
FOwner : TColoredBindNavigator;
FColors: array [0 .. 2] of TAlphaColor;
procedure SetColor(Index: Integer; Value: TAlphaColor);
function GetCancelColor: TAlphaColor;
function GetEditColor: TAlphaColor;
function GetNavigationColor: TAlphaColor;
procedure SetCancelColor(const Value: TAlphaColor);
procedure SetEditColor(const Value: TAlphaColor);
procedure SetNavigationColor(const Value: TAlphaColor);
function IsColorsStored: Boolean;
procedure SetDefaultColor(const Value: TAlphaColor);
public
constructor Create(aOwner : TColoredBindNavigator);
destructor Destroy; override;
function GetColor(Index: Integer): TAlphaColor;
published
property Navigation: TAlphaColor read FColors[0] write SetNavigationColor default TAlphaColors.Blue;
property Edit: TAlphaColor read FColors[1] write SetEditColor default TAlphaColors.Green;
property Cancel: TAlphaColor read FColors[2] write SetCancelColor default TAlphaColors.Red;
end;
TColorNavButton = class helper for TBindNavButton
/// set the color of the Tpath.fill.color property
procedure setcolor(const c : TAlphaColor);
/// apply the custom colors corresponding to the TNavigateButton type
/// Three groups NavigatorScrollings,NavigatorValidations,NavigatorCancelations
/// see const part
procedure ApplyColorStyle(const customcolors : TGlyphColors);
///
end;
TColoredBindNavigator = class(TCustomBindNavigator)
private
FController: TBindNavigatorController;
FNavigatorGlyphColors: TGlyphColors;
function GetGlyphColor(const Index: Integer): TAlphaColor;
procedure SetGlyphColor(const Index: Integer; const Value: TAlphaColor);
procedure SetGlyphColors(const Value: TGlyphColors);
procedure Loaded; override;
procedure Paint ; override;
public
{ Déclarations publiques }
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure customcolors(scrollcolor, Updatecolor, cancelcolor : TAlphaColor);
procedure ApplyColors;
function GetDefaultGlyphColor : TAlphaColor;
published
property NavigatorGlyphColors: TGlyphColors read FNavigatorGlyphColors write SetGlyphColors; // stored true;
property DataSource;
property VisibleButtons;
property Align;
property Enabled;
property CornerType;
property Corners;
property xRadius;
property yRadius;
property ConfirmDelete;
property Visible;
property BeforeAction;
property OnClick;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('Govel', [TColoredBindNavigator]);
end;
{ TColoredBindNavigator }
procedure TColoredBindNavigator.ApplyColors;
begin
for var aButton in Buttons do
aButton.ApplyColorStyle(NavigatorGlyphColors);
end;
constructor TColoredBindNavigator.Create(AOwner: TComponent);
begin
inherited;
if not assigned(FNavigatorGlyphColors)
then FNavigatorGlyphColors:=TGlyphColors.Create(Self);
ApplyColors;
end;
destructor TColoredBindNavigator.Destroy;
begin
FNavigatorGlyphColors.Free;
inherited;
end;
function TColoredBindNavigator.GetDefaultGlyphColor: TAlphaColor;
begin
var d := TCornerButton.Create(Self);
d.Parent:=Self;
d.ApplyStyleLookup;
var S := d.FindStyleResource('text');
if (S <> nil) and (S is TText) then
result:= TText(S).Color
else result:=TAlphaColors.Null;
FreeAndNil(d);
end;
function TColoredBindNavigator.GetGlyphColor(const Index: Integer): TAlphaColor;
begin
if index in [0 .. 2] then
Result := FNavigatorGlyphColors.GetColor(index)
else
Result := GetDefaultGlyphColor; // défaut TAlphaColors.Null
end;
procedure TColoredBindNavigator.Loaded;
begin
inherited Loaded;
ApplyColors;
end;
procedure TColoredBindNavigator.Paint;
begin
inherited Paint;
ApplyColors;
end;
procedure TColoredBindNavigator.SetGlyphColor(const Index: Integer;
const Value: TAlphaColor);
begin
NavigatorGlyphColors.SetColor(index,Value);
ApplyColors;
end;
procedure TColoredBindNavigator.SetGlyphColors(const Value: TGlyphColors);
begin
FNavigatorGlyphColors.Assign(Value);
ApplyColors;
end;
procedure TColoredBindNavigator.customcolors(scrollcolor, Updatecolor,
cancelcolor: TAlphaColor);
begin
FNavigatorGlyphColors.Navigation:=ScrollColor;
FNavigatorGlyphColors.Edit:=UpdateColor;
FNavigatorGlyphColors.Cancel:=CancelColor;
ApplyColors;
end;
{ TGlyphColors }
constructor TGlyphColors.Create(aOwner : TColoredBindNavigator);
begin
FOwner:=aOwner;
FColors[0] := TAlphaColors.Blue;
FColors[1] := TAlphaColors.Green;
FColors[2] := TAlphaColors.Red;
end;
destructor TGlyphColors.Destroy;
begin
inherited;
end;
function TGlyphColors.GetCancelColor: TAlphaColor;
begin
result:=GetColor(2);
end;
function TGlyphColors.GetColor(Index: Integer): TAlphaColor;
begin
if index in [0..2] then
Result := FColors[Index]
else Result:=TAlphaColors.Null
end;
function TGlyphColors.GetEditColor: TAlphaColor;
begin
Result:=GetColor(1);
end;
function TGlyphColors.GetNavigationColor: TAlphaColor;
begin
Result:=GetColor(0);
end;
function TGlyphColors.IsColorsStored: Boolean;
begin
result:=True;
end;
procedure TGlyphColors.SetCancelColor(const Value: TAlphaColor);
begin
SetColor(2,Value);
FOwner.ApplyColors;
end;
procedure TGlyphColors.SetColor(Index: Integer; Value: TAlphaColor);
begin
FColors[Index] := Value;
end;
procedure TGlyphColors.SetDefaultColor(const Value: TAlphaColor);
var acolor : TAlphaColor;
begin
var S:=FOwner.FindStyleResource('text');
if Assigned(s) then acolor:=TText(S).Color
else acolor:=TAlphaColors.Alpha;
end;
procedure TGlyphColors.SetEditColor(const Value: TAlphaColor);
begin
SetColor(1,Value);
FOwner.ApplyColors;
end;
procedure TGlyphColors.SetNavigationColor(const Value: TAlphaColor);
begin
SetColor(0,Value);
FOwner.ApplyColors;
end;
{ TColorNavButton }
procedure TColorNavButton.ApplyColorStyle(const customcolors : TGlyphColors);
var defaultstylecolor : TAlphaColor;
begin
if (TNavigateButton(Self.index) in NavigatorScrollings)
AND (customcolors.Navigation<>TAlphacolors.Null)
// AND (customcolors.scroll<>DefaultStyleColor) // todo test
then Setcolor(customcolors.Navigation);
if (TNavigateButton(Self.index) in NavigatorValidations)
AND (customcolors.Edit<>TAlphacolors.Null)
then Setcolor(customcolors.Edit);
if (TNavigateButton(Self.index) in NavigatorCancelations)
AND (customcolors.cancel<>TAlphacolors.null)
then Setcolor(customcolors.cancel);
end;
procedure TColorNavButton.setcolor(const c: TAlphaColor);
begin
with Self do
FPath.Fill.Color:=c;
end;
end. |
Creer un composant qui contient un ensemble de propriétés, un TBindNavigator colorisé
Répondre avec citation
), je rendrai donc compte plus tard du résultat
Envoyé par SergioMaster
quel serait le mieux ?
mais je butte avec ApplyColors ,j'aimerais remplacer "background.fill.Color" par "font.fill.Color" pour laisser un choix à l'utilisateur en ajoutant une propriété ,background ou font mais ça marche pas pour font !!!
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