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474 lines (421 loc) · 17.6 KB
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{******************************************************************************}
{ }
{ ColorButtonStyles: Button Styles based on VCL color names }
{ Unit System.UIConsts }
{ }
{ Copyright (c) 2022-2026 (Ethea S.r.l.) }
{ Author: Carlo Barazzetta }
{ Contributors: }
{ }
{ https://github.com/EtheaDev/StyledComponents }
{ }
{******************************************************************************}
{ }
{ Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 }
{ }
{ Unless required by applicable law or agreed to in writing, software }
{ distributed under the License is distributed on an "AS IS" BASIS, }
{ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. }
{ See the License for the specific language governing permissions and }
{ limitations under the License. }
{ }
{******************************************************************************}
unit Vcl.ColorButtonStyles;
interface
uses
Vcl.Graphics
, System.UIConsts
, System.UITypes
, Vcl.ButtonStylesAttributes;
const
//Button Family
BASIC_COLOR_FAMILY = 'Basic-Colors';
SVG_COLOR_FAMILY = 'SVG-Colors';
//Button Class contains the name of the color, for example:
//for 'BasicColors': clBlack, clRed, clYellow (Colors: array[0..51] in UIConsts)
//for 'SvgColors': claAliceblue, claAntiquewhite, claAqua (AlphaColors: array [0..147] in UIConsts)
//Button Appearance
COLOR_BTN_NORMAL = 'Normal';
COLOR_BTN_OUTLINE = 'Outline';
COLOR_BTN_WIDTH = 2;
Type
TBasicColorButtonStyles = class(TInterfacedObject, IStyledButtonAttributes)
private
procedure UpdateAttributes(
const AFamily: TStyledButtonFamily;
const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance;
var ANormalStyle, APressedStyle, ASelectedStyle,
AHotStyle, ADisabledStyle: TStyledButtonAttributes);
function ButtonFamilyName: string;
function GetButtonClasses: TButtonClasses;
function GetButtonAppearances: TButtonAppearances;
procedure GetStyleByModalResult(
const AModalResult: System.UITypes.TModalResult;
var AStyleClass: TStyledButtonClass;
var AStyleAppearance: TStyledButtonAppearance);
procedure GetColorName(const AColorName: string);
procedure BasicClassToColors(const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance; var AFontColor,
AButtonColor, ABorderColor: TColor; out AOutLine: Boolean);
end;
TSVGColorButtonStyles = class(TInterfacedObject, IStyledButtonAttributes)
private
procedure UpdateAttributes(
const AFamily: TStyledButtonFamily;
const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance;
var ANormalStyle, APressedStyle, ASelectedStyle,
AHotStyle, ADisabledStyle: TStyledButtonAttributes);
function ButtonFamilyName: string;
function GetButtonClasses: TButtonClasses;
function GetButtonAppearances: TButtonAppearances;
procedure GetStyleByModalResult(
const AModalResult: System.UITypes.TModalResult;
var AStyleClass: TStyledButtonClass;
var AStyleAppearance: TStyledButtonAppearance);
procedure GetColorName(const AColorName: string);
procedure SVGClassToColors(const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance; var AFontColor,
AButtonColor, ABorderColor: TColor; out AOutLine: Boolean);
end;
implementation
uses
System.SysUtils
, WinApi.Windows;
var
BasicButtonClasses: TButtonClasses;
SvgButtonClasses: TButtonClasses;
ButtonAppearances: TButtonAppearances;
{ TBasicColorButtonStyles }
procedure TBasicColorButtonStyles.BasicClassToColors(const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance;
var AFontColor, AButtonColor, ABorderColor: TColor; out AOutLine: Boolean);
var
LColor: integer;
begin
AOutLine := SameText(AAppearance, COLOR_BTN_OUTLINE);
IdentToColor(AClass, LColor);
AButtonColor := TColor(LColor);
if ColorIsLight(AButtonColor) then
begin
ABorderColor := DarkenColor(AButtonColor, 20);
AFontColor := clBlack;
end
else
begin
ABorderColor := LightenColor(AButtonColor, 20);
AFontColor := clWhite;
end;
end;
function TBasicColorButtonStyles.ButtonFamilyName: string;
begin
Result := BASIC_COLOR_FAMILY;
end;
function TBasicColorButtonStyles.GetButtonAppearances: TButtonAppearances;
begin
Result := ButtonAppearances;
end;
procedure TBasicColorButtonStyles.GetColorName(const AColorName: string);
begin
SetLength(BasicButtonClasses, Length(BasicButtonClasses)+1);
BasicButtonClasses[Length(BasicButtonClasses)-1] := AColorName;
end;
function TBasicColorButtonStyles.GetButtonClasses: TButtonClasses;
begin
if Length(BasicButtonClasses) = 0 then
GetColorValues(GetColorName);
Result := BasicButtonClasses;
end;
procedure TBasicColorButtonStyles.GetStyleByModalResult(
const AModalResult: System.UITypes.TModalResult;
var AStyleClass: TStyledButtonClass;
var AStyleAppearance: TStyledButtonAppearance);
begin
//if AModalResult is mrNone, define the defaults of Family
case AModalResult of
mrNone : begin AStyleClass := 'clBlue'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrYes : begin AStyleClass := 'clBlue'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrNo : begin AStyleClass := 'clGray'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrOk : begin AStyleClass := 'clGreen'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrCancel : begin AStyleClass := 'clRed'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrAbort : begin AStyleClass := 'clRed'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrRetry : begin AStyleClass := 'clYellow'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrIgnore : begin AStyleClass := 'clGray'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrAll : begin AStyleClass := 'clBlue'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrNoToAll : begin AStyleClass := 'clRed'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrYesToAll : begin AStyleClass := 'clGreen'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrClose : begin AStyleClass := 'clGray'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrTryAgain : begin AStyleClass := 'clYellow'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrContinue : begin AStyleClass := 'clGray'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrHelp : begin AStyleClass := 'clYellow'; AStyleAppearance := COLOR_BTN_NORMAL; end;
else
GetStyleByModalResult(mrNone, AStyleClass, AStyleAppearance);
end;
end;
procedure TBasicColorButtonStyles.UpdateAttributes(
const AFamily: TStyledButtonFamily;
const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance;
var ANormalStyle, APressedStyle, ASelectedStyle, AHotStyle,
ADisabledStyle: TStyledButtonAttributes);
var
LFontColor, LButtonColor, LBorderColor: TColor;
LOutLine: Boolean;
begin
BasicClassToColors(AClass, AAppearance, LFontColor, LButtonColor, LBorderColor, LOutLine);
//Default Style Attributes for Basic Color Buttons
ANormalStyle.DrawType := btRoundRect;
ANormalStyle.FontStyle := [fsBold];
ANormalStyle.BorderWidth := COLOR_BTN_WIDTH;
//Style for Normal Style of Basic Color Button
if LOutLine then
begin
//Outline: Border and FontColor same as Button Color
ANormalStyle.ButtonDrawStyle := btnClear;
ANormalStyle.BorderDrawStyle := brdSolid;
ANormalStyle.BorderWidth := COLOR_BTN_WIDTH;
ANormalStyle.BorderColor := LButtonColor;
ANormalStyle.FontColor := LButtonColor;
end
else
begin
ANormalStyle.ButtonDrawStyle := btnSolid;
ANormalStyle.BorderDrawStyle := brdSolid;
ANormalStyle.FontColor := LFontColor;
ANormalStyle.ButtonColor := LButtonColor;
ANormalStyle.BorderColor := LBorderColor;
end;
//Clone Normal Style to Other Styles
CloneButtonStyle(ANormalStyle, APressedStyle);
CloneButtonStyle(ANormalStyle, ASelectedStyle);
CloneButtonStyle(ANormalStyle, AHotStyle);
CloneButtonStyle(ANormalStyle, ADisabledStyle);
if LOutline then
begin
//Button Down: color as Button Color
with APressedStyle do
begin
ButtonColor := DarkenColor(LButtonColor, 20);
BorderColor := LBorderColor;
BorderDrawStyle := brdSolid;
BorderWidth := COLOR_BTN_WIDTH+2;
FontColor := LFontColor;
ButtonDrawStyle := btnSolid;
end;
//Button Hot: color as Button Color
with AHotStyle do
begin
ButtonColor := LButtonColor;
BorderDrawStyle := brdClear;
BorderWidth := COLOR_BTN_WIDTH;
FontColor := LFontColor;
ButtonDrawStyle := btnSolid;
end;
//Button Focused
with ASelectedStyle do
begin
ButtonColor := LButtonColor;
FontColor := LFontColor;
BorderDrawStyle := brdSolid;
BorderWidth := COLOR_BTN_WIDTH+1;
BorderColor := LBorderColor;
ButtonDrawStyle := btnSolid;
end;
//Button Disabled
ADisabledStyle.BorderColor := LightenColor(ADisabledStyle.BorderColor, 50);
ADisabledStyle.FontColor := LightenColor(ADisabledStyle.FontColor, 50);
end
else
begin
//Button Down
APressedStyle.ButtonColor := LBorderColor;
APressedStyle.BorderColor := LButtonColor;
APressedStyle.BorderDrawStyle := brdSolid;
APressedStyle.BorderWidth := COLOR_BTN_WIDTH;
//Button Hot: color as Down but no Border
AHotStyle.ButtonColor := APressedStyle.ButtonColor;
//Button Focused
ASelectedStyle.ButtonColor := APressedStyle.ButtonColor;
ASelectedStyle.BorderDrawStyle := brdSolid;
ASelectedStyle.BorderWidth := COLOR_BTN_WIDTH;
end;
//Disabled Button (lighten)
ADisabledStyle.BorderColor := LightenColor(ADisabledStyle.BorderColor, 50);
ADisabledStyle.ButtonColor := LightenColor(ADisabledStyle.ButtonColor, 50);
ADisabledStyle.FontColor := LightenColor(ADisabledStyle.FontColor, 50);
end;
{ TSVGColorButtonStyles }
procedure TSVGColorButtonStyles.SVGClassToColors(const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance;
var AFontColor, AButtonColor, ABorderColor: TColor; out AOutLine: Boolean);
var
LColor: TAlphaColor;
function AlphaColorToColor(const Color: TAlphaColor): TColor;
begin
TColorRec(Result).R := TAlphaColorRec(Color).R;
TColorRec(Result).G := TAlphaColorRec(Color).G;
TColorRec(Result).B := TAlphaColorRec(Color).B;
TColorRec(Result).A := 0;
end;
begin
AOutLine := SameText(AAppearance, COLOR_BTN_OUTLINE);
LColor := StringToAlphaColor(AClass);
AButtonColor := AlphaColorToColor(LColor);
if ColorIsLight(AButtonColor) then
begin
ABorderColor := DarkenColor(AButtonColor, 20);
AFontColor := clBlack;
end
else
begin
ABorderColor := LightenColor(AButtonColor, 20);
AFontColor := clWhite;
end;
end;
function TSVGColorButtonStyles.ButtonFamilyName: string;
begin
Result := SVG_COLOR_FAMILY;
end;
function TSVGColorButtonStyles.GetButtonAppearances: TButtonAppearances;
begin
Result := ButtonAppearances;
end;
function TSVGColorButtonStyles.GetButtonClasses: TButtonClasses;
begin
if Length(SvgButtonClasses) = 0 then
GetAlphaColorValues(GetColorName);
Result := SvgButtonClasses;
end;
procedure TSVGColorButtonStyles.GetColorName(const AColorName: string);
begin
SetLength(SvgButtonClasses, Length(SvgButtonClasses)+1);
SvgButtonClasses[Length(SvgButtonClasses)-1] := AColorName;
end;
procedure TSVGColorButtonStyles.GetStyleByModalResult(
const AModalResult: System.UITypes.TModalResult;
var AStyleClass: TStyledButtonClass;
var AStyleAppearance: TStyledButtonAppearance);
begin
//if AModalResult is mrNone, define the defaults of Family
case AModalResult of
mrNone : begin AStyleClass := 'Aliceblue'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrYes : begin AStyleClass := 'Darkblue'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrNo : begin AStyleClass := 'Slateblue'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrOk : begin AStyleClass := 'Forestgreen'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrCancel : begin AStyleClass := 'Darkred'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrAbort : begin AStyleClass := 'Firebrick'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrRetry : begin AStyleClass := 'Gold'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrIgnore : begin AStyleClass := 'Silver'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrAll : begin AStyleClass := 'Midnightblue'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrNoToAll : begin AStyleClass := 'Slateblue'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrYesToAll : begin AStyleClass := 'Darkblue'; AStyleAppearance := COLOR_BTN_OUTLINE; end;
mrClose : begin AStyleClass := 'Thistle'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrTryAgain : begin AStyleClass := 'Slategray'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrContinue : begin AStyleClass := 'Lightseagreen'; AStyleAppearance := COLOR_BTN_NORMAL; end;
mrHelp : begin AStyleClass := 'Plum'; AStyleAppearance := COLOR_BTN_NORMAL; end;
else
GetStyleByModalResult(mrNone, AStyleClass, AStyleAppearance);
end;
end;
procedure TSVGColorButtonStyles.UpdateAttributes(
const AFamily: TStyledButtonFamily; const AClass: TStyledButtonClass;
const AAppearance: TStyledButtonAppearance; var ANormalStyle, APressedStyle,
ASelectedStyle, AHotStyle, ADisabledStyle: TStyledButtonAttributes);
var
LFontColor, LButtonColor, LBorderColor: TColor;
LOutLine: Boolean;
begin
SVGClassToColors(AClass, AAppearance, LFontColor, LButtonColor, LBorderColor, LOutLine);
//Default Style Attributes for Basic Color Buttons
ANormalStyle.DrawType := btRoundRect;
ANormalStyle.FontStyle := [fsBold];
ANormalStyle.BorderWidth := COLOR_BTN_WIDTH;
//Style for Normal Style of Basic Color Button
if LOutLine then
begin
//Outline: Border and FontColor same as Button Color
ANormalStyle.ButtonDrawStyle := btnClear;
ANormalStyle.BorderDrawStyle := brdSolid;
ANormalStyle.BorderWidth := COLOR_BTN_WIDTH;
ANormalStyle.BorderColor := LButtonColor;
ANormalStyle.FontColor := LButtonColor;
end
else
begin
ANormalStyle.ButtonDrawStyle := btnSolid;
ANormalStyle.BorderDrawStyle := brdSolid;
ANormalStyle.FontColor := LFontColor;
ANormalStyle.ButtonColor := LButtonColor;
ANormalStyle.BorderColor := LBorderColor;
end;
//Clone Normal Style to Other Styles
CloneButtonStyle(ANormalStyle, APressedStyle);
CloneButtonStyle(ANormalStyle, ASelectedStyle);
CloneButtonStyle(ANormalStyle, AHotStyle);
CloneButtonStyle(ANormalStyle, ADisabledStyle);
if LOutline then
begin
//Button Down: color as Button Color
with APressedStyle do
begin
ButtonColor := DarkenColor(LButtonColor, 20);
BorderColor := LBorderColor;
BorderDrawStyle := brdSolid;
BorderWidth := COLOR_BTN_WIDTH+2;
FontColor := LFontColor;
ButtonDrawStyle := btnSolid;
end;
//Button Hot: color as Button Color
with AHotStyle do
begin
ButtonColor := LButtonColor;
BorderDrawStyle := brdClear;
BorderWidth := COLOR_BTN_WIDTH;
FontColor := LFontColor;
ButtonDrawStyle := btnSolid;
end;
//Button Focused
with ASelectedStyle do
begin
ButtonColor := LButtonColor;
FontColor := LFontColor;
BorderDrawStyle := brdSolid;
BorderWidth := COLOR_BTN_WIDTH+1;
BorderColor := LBorderColor;
ButtonDrawStyle := btnSolid;
end;
//Button Disabled
ADisabledStyle.BorderColor := LightenColor(ADisabledStyle.BorderColor, 50);
ADisabledStyle.FontColor := LightenColor(ADisabledStyle.FontColor, 50);
end
else
begin
//Button Down
APressedStyle.ButtonColor := LBorderColor;
APressedStyle.BorderColor := LButtonColor;
APressedStyle.BorderDrawStyle := brdSolid;
APressedStyle.BorderWidth := COLOR_BTN_WIDTH;
//Button Hot: color as Down but no Border
AHotStyle.ButtonColor := APressedStyle.ButtonColor;
//Button Focused
ASelectedStyle.ButtonColor := APressedStyle.ButtonColor;
ASelectedStyle.BorderDrawStyle := brdSolid;
ASelectedStyle.BorderWidth := COLOR_BTN_WIDTH;
end;
//Disabled Button (lighten)
ADisabledStyle.BorderColor := LightenColor(ADisabledStyle.BorderColor, 50);
ADisabledStyle.ButtonColor := LightenColor(ADisabledStyle.ButtonColor, 50);
ADisabledStyle.FontColor := LightenColor(ADisabledStyle.FontColor, 50);
end;
initialization
SetLength(ButtonAppearances, 2);
ButtonAppearances[0] := COLOR_BTN_NORMAL;
ButtonAppearances[1] := COLOR_BTN_OUTLINE;
RegisterButtonFamily(TBasicColorButtonStyles.Create);
RegisterButtonFamily(TSvgColorButtonStyles.Create);
end.