[15] | 1 | Unit CustomFontDialog;
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| 2 |
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| 3 | Interface
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| 4 |
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| 5 | Uses
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[214] | 6 | Classes,
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| 7 | Forms,
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| 8 | Dialogs,
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| 9 | StdCtrls,
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| 10 | Buttons,
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| 11 | Graphics;
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[15] | 12 |
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| 13 | Type
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| 14 |
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| 15 | TCustomFontDialog=Class(TDialog)
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| 16 | Private
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| 17 | FNameList: TListBox;
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| 18 | FNameLabel: TLabel;
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| 19 | FSizeCombo: TComboBox;
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| 20 | FSizeLabel: TLabel;
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| 21 | FStyleLabel: TLabel;
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| 22 | FStyleListbox: TListBox;
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| 23 | FExampleText: TEdit;
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| 24 | FItalicCheck:TCheckBox;
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| 25 | FBoldCheck:TCheckBox;
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| 26 | FOutlineCheck:TCheckBox;
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| 27 | FUnderscoreCheck:TCheckBox;
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| 28 | FStrikeOutCheck:TCheckBox;
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| 29 | FActualFaceLabel:TLabel;
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| 30 | FOKButton:TButton;
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| 31 | FCancelButton:TButton;
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| 32 | FEditFont: TFont;
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| 33 |
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| 34 | FAllowSimulations: boolean;
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| 35 |
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| 36 | FUpdating: boolean;
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| 37 | FFontLoadRequired: boolean;
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| 38 |
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| 39 | Function GetFaceName: String;
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| 40 | Procedure SetFaceName( s: String );
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| 41 |
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| 42 | Function GetStyleName: String;
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| 43 | Procedure SetStyleName( s: String );
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| 44 |
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| 45 | Function GetPointSize: LongInt;
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| 46 | Procedure SetPointSize( Value:LongInt );
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| 47 |
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| 48 | Function GetStyleFont: TFont;
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| 49 |
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| 50 | Function GetAttributes: TFontAttributes;
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| 51 | Procedure SetAttributes( NewValue: TFontAttributes );
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| 52 |
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| 53 | Procedure InsertSizes;
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| 54 | Procedure InsertStyles;
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| 55 |
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| 56 | Procedure OnSelectFace( Sender: TObject; Index: LongInt );
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| 57 | Procedure OnSelectStyle( Sender: TObject; Index: LongInt );
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| 58 | Procedure OnSetSize( Sender: TObject );
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| 59 | Procedure OnStyleChanged( Sender:TObject );
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| 60 |
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| 61 | Procedure OnSizeClick( Sender: TObject; Index: longint );
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| 62 |
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| 63 | Procedure SetEditFont( NewFont:TFont );
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| 64 |
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| 65 | Function FindFace( FaceName: string ): TFont;
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| 66 |
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| 67 | Protected
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| 68 | Procedure SetupComponent; Override;
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| 69 | Procedure SetupShow; Override;
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| 70 | Procedure LayoutControls;
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| 71 | Procedure Resize; override;
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| 72 | Procedure SelectFont;
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| 73 | public
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| 74 | Property FaceName: String read GetFaceName write SetFaceName;
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| 75 | Property StyleName: String read GetStyleName write SetStyleName;
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| 76 | Property PointSize: longint read GetPointSize write SetPointSize;
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| 77 | Property Attributes: TFontAttributes read GetAttributes write SetAttributes;
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| 78 |
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| 79 | Property EditFont: TFont Read FEditFont Write SetEditFont;
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| 80 | Property AllowSimulations: boolean read FAllowSimulations write FAllowSimulations;
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| 81 | End;
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| 82 |
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| 83 | Exports
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| 84 | TCustomFontDialog, 'User', 'CustomFontDialog.bmp';
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| 85 |
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| 86 | Implementation
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| 87 |
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| 88 | uses
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[214] | 89 | SysUtils,
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| 90 | PmWin,
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| 91 | StringUtilsUnit;
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[15] | 92 |
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| 93 | // Returns true if s ends with endstr (case insensitive)
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| 94 | Function StringAtEnd( const endStr: string; const s: string ): boolean;
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| 95 | Var
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| 96 | i, j: integer;
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| 97 | Begin
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| 98 | Result := false;
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| 99 | if Length( s ) < length( endStr ) then
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| 100 | exit;
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| 101 | j := Length( s );
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| 102 | for i := length( endstr ) downto 1 do
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| 103 | begin
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| 104 | if UpCase( s[ j ] ) <> UpCase( endStr[ i ] ) then
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| 105 | exit;
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| 106 | dec( j );
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| 107 | end;
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| 108 | Result := true;
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| 109 | End;
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| 110 |
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| 111 | // Returns S minus count characters from the right
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| 112 | Function StringLeftWithout( const S:string; const count:integer ):string;
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| 113 | Begin
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| 114 | Result := copy( S, 1, length( S )-count );
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| 115 | End;
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| 116 |
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| 117 | Function RemoveIfMatchAtEnd( Var s: string; const SearchString: string ): boolean;
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| 118 | begin
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| 119 | Result := StringAtEnd( SearchString, s );
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| 120 | if Result then
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| 121 | s := Trim( StringLeftWithout( s, Length( SearchString ) ) );
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| 122 | end;
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| 123 |
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| 124 | Procedure RemoveStyleNames( Var FaceName: string );
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| 125 | Begin
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| 126 | FaceName := Trim( FaceName );
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| 127 | RemoveIfMatchAtEnd( FaceName, 'Italic' );
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| 128 | RemoveIfMatchAtEnd( FaceName, 'Oblique' );
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| 129 | RemoveIfMatchAtEnd( FaceName, 'Bold' );
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| 130 | RemoveIfMatchAtEnd( FaceName, 'Normal' );
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| 131 | end;
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| 132 |
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| 133 | Function GetFontFamilyName( Font: TFont ): string;
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| 134 | begin
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| 135 | Result := Font.Family;
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[214] | 136 | SubstituteAllOccurencesOfChar( Result, '-', ' ' );
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| 137 | SubstituteAllOccurencesOfChar( Result, '_', ' ' );
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[15] | 138 |
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| 139 | if Result = 'Roman' then
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[250] | 140 | if StrStartsWithIgnoringCase(Font.FaceName,'Tms Rmn') then
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[15] | 141 | // one particularly stupid example
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| 142 | Result := 'Tms Rmn';
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| 143 |
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| 144 | if Result = 'Swiss' then
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[250] | 145 | if StrStartsWithIgnoringCase(Font.FaceName, 'Helv') then
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[15] | 146 | // one particularly stupid example
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| 147 | Result := 'Helv';
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| 148 |
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| 149 | // some fonts have family names with styles!
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| 150 | RemoveStyleNames( Result );
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| 151 |
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| 152 | end;
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| 153 |
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| 154 | Function GetFontStyleName( Font: TFont ): string;
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| 155 | var
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| 156 | FamilyName: string;
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| 157 | begin
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| 158 | Result := Font.FaceName;
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[214] | 159 | SubstituteAllOccurencesOfChar( Result, '-', ' ' );
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| 160 | SubstituteAllOccurencesOfChar( Result, '_', ' ' );
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[15] | 161 |
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| 162 | FamilyName := GetFontFamilyName( Font );
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[250] | 163 | if StrStartsWithIgnoringCase(Result, FamilyName) then
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[15] | 164 | begin
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[214] | 165 | Result := StrSubstringFrom( Result, length( FamilyName ) + 1 );
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| 166 | Result := StrTrimChars( Result, [ ' ', '-', '_' ] );
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[15] | 167 |
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| 168 | if Result = '' then
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| 169 | Result := 'Normal';
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| 170 | end;
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| 171 | end;
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| 172 |
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| 173 | Procedure TCustomFontDialog.SetupComponent;
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| 174 | Var
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| 175 | FontIndex: LongInt;
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| 176 | aFont: TFont;
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| 177 | FontList: TStringList;
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| 178 | FamilyIndex: longint;
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| 179 | FontFamilyName: string;
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| 180 | FontStyleName: string;
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| 181 | Begin
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| 182 | Inherited SetupComponent;
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| 183 |
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| 184 | FAllowSimulations := true;
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| 185 |
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| 186 | BorderStyle := bsSizeable;
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| 187 | BorderIcons := [ biSystemMenu, biMaximize ];
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| 188 |
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| 189 | Caption := LoadNLSStr( SSelectAFont );
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| 190 | Width := 480;
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| 191 | Height := 350;
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| 192 | MinTrackHeight := 350;
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| 193 | MinTrackWidth := 400;
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| 194 |
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| 195 | // Give controls names for purposes of language support...
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| 196 |
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| 197 | FNameList := TListBox.Create( self );
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| 198 | FNameList.Parent := self;
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| 199 | FNameList.Sorted := true;
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| 200 | FNameList.Duplicates := false;
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| 201 | FNameList.OnItemFocus := OnSelectFace;
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| 202 | FNameList.Name := 'NameList';
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| 203 |
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| 204 | FNameLabel := TLabel.Create( self );
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| 205 | FNameLabel.Parent := self;
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| 206 | FNameLabel.Caption := '~Name:';
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| 207 | FNameLabel.FocusControl := FNameList;
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| 208 | FNameLabel.Name := 'NameLabel';
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| 209 |
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| 210 | FStyleListbox := TListBox.Create( self );
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| 211 | FStyleListbox.Parent := self;
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| 212 | FStyleListbox.Name := 'StyleListBox';
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| 213 | FStyleListBox.Sorted := true;
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| 214 | FStyleListBox.OnItemFocus := OnSelectStyle;
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| 215 |
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| 216 | FStyleLabel := TLabel.Create( self );
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| 217 | FStyleLabel.Parent := self;
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| 218 | FStyleLabel.Caption := 'S~tyle:';
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| 219 | FStyleLabel.FocusControl := FStyleListBox;
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| 220 | FStyleLabel.Name := 'StyleLabel';
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| 221 |
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| 222 | FBoldCheck := TCheckBox.Create( self );
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| 223 | FBoldCheck.Parent := self;
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| 224 | FBoldCheck.OnClick := OnStyleChanged;
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| 225 | FBoldCheck.Caption := '~Bold (Simulated)';
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| 226 | FBoldCheck.Name := 'BoldCheck';
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| 227 |
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| 228 | FItalicCheck := TCheckBox.Create( self );
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| 229 | FItalicCheck.Parent := self;
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| 230 | FItalicCheck.OnClick := OnStyleChanged;
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| 231 | FItalicCheck.Caption := '~Italic (Simulated)';
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| 232 | FItalicCheck.Name := 'ItalicCheck';
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| 233 |
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| 234 | FUnderscoreCheck := TCheckBox.Create( self );
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| 235 | FUnderscoreCheck.Parent := self;
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| 236 | FUnderscoreCheck.OnClick := OnStyleChanged;
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| 237 | FUnderscoreCheck.Caption := LoadNLSStr( SUnderscore );
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| 238 | FUnderscoreCheck.Name := 'UnderscoreCheck';
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| 239 |
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| 240 | FOutlineCheck := TCheckBox.Create( self );
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| 241 | FOutlineCheck.Parent := self;
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| 242 | FOutlineCheck.OnClick := OnStyleChanged;
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| 243 | FOutlineCheck.Caption := LoadNLSStr( SOutline );
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| 244 | FOutlineCheck.Name := 'OutlineCheck';
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| 245 |
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| 246 | FStrikeOutCheck := TCheckBox.Create( self );
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| 247 | FStrikeOutCheck.Parent := self;
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| 248 | FStrikeOutCheck.OnClick := OnStyleChanged;
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| 249 | FStrikeOutCheck.Caption := 'St~rikeout';
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| 250 | FStrikeOutCheck.Name := 'StrikeOutCheck';
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| 251 |
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| 252 | FSizeCombo := TComboBox.Create( self );
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| 253 | FSizeCombo.Style := csSimple;
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| 254 | FSizeCombo.Parent := self;
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| 255 | FSizeCombo.OnChange := OnSetSize;
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| 256 | FSizeCombo.OnItemFocus := OnSizeClick;
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| 257 | FSizeCombo.Name := 'SizeCombo';
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| 258 |
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| 259 | FSizeLabel := TLabel.Create( self );
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| 260 | FSizeLabel.Parent := self;
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| 261 | FSizeLabel.Caption := '~Size:';
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| 262 | FSizeLabel.FocusControl := FSizeCombo;
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| 263 | FSizeLabel.Name := 'SizeLabel';
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| 264 |
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| 265 | FExampleText := TEdit.Create( self );
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| 266 | FExampleText.Parent := self;
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| 267 | FExampleText.Text := 'abc ABC def DEF';
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| 268 | FExampleText.Autosize := false;
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| 269 | FExampleText.Name := 'ExampleText';
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| 270 |
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| 271 | FActualFaceLabel := TLabel.Create( self );
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| 272 | FActualFaceLabel.Parent := self;
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| 273 | FActualFaceLabel.Caption := '';
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| 274 | FActualFaceLabel.Name := 'ActualFaceLabel';
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| 275 | FActualFaceLabel.Alignment := taRightJustify;
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| 276 |
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| 277 | For FontIndex := 0 To Screen.FontCount - 1 Do
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| 278 | Begin
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| 279 | aFont := Screen.Fonts[ FontIndex ];
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| 280 |
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| 281 | FontStyleName := GetFontStyleName( aFont );
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| 282 | FontFamilyName := GetFontFamilyName( aFont );
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| 283 |
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| 284 | FamilyIndex := FNameList.Items.IndexOf( FontFamilyName );
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| 285 | if FamilyIndex = -1 then
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| 286 | begin
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| 287 | // new family
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| 288 | FontList := TStringList.Create;
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| 289 | FNameList.Items.AddObject( FontFamilyName, FontList );
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| 290 | end
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| 291 | else
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| 292 | begin
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| 293 | FontList := FNameList.Items.Objects[ FamilyIndex ] as TStringList;
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| 294 | end;
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| 295 | if FontList.IndexOf( FontStyleName ) = -1 then
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| 296 | begin
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| 297 | // new font for this family
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| 298 | FontList.AddObject( FontStyleName, aFont );
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| 299 | end;
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| 300 | End;
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| 301 |
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| 302 | FOKButton := InsertButton( Self, 150, 10, 90, 30,
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| 303 | LoadNLSStr( SOkButton ),
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| 304 | '' );
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| 305 | FOKButton.Name := 'OKButton';
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| 306 | FOKButton.Default := true;
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| 307 | FOKButton.ModalResult := mrOK;
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| 308 |
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| 309 | FCancelButton := InsertButton( Self, 250, 10, 90, 30,
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| 310 | LoadNLSStr( SCancelButton ),
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| 311 | '' );
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| 312 | FCancelButton.Name := 'CancelButton';
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| 313 | FCancelButton.Cancel := true;
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| 314 | FCancelButton.ModalResult := mrCancel;
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| 315 |
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| 316 | LayoutControls;
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| 317 |
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| 318 | SetEditFont( Screen.DefaultFont );
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| 319 | End;
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| 320 |
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| 321 | Function TCustomFontDialog.FindFace( FaceName: string ): TFont;
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| 322 | Var
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| 323 | FontIndex: LongInt;
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| 324 | aFont: TFont;
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| 325 | begin
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| 326 | For FontIndex := 0 To Screen.FontCount - 1 Do
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| 327 | Begin
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| 328 | aFont := Screen.Fonts[ FontIndex ];
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| 329 | if AnsiCompareText( aFont.FaceName, FaceName ) = 0 then
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| 330 | begin
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| 331 | Result := aFont;
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| 332 | exit;
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| 333 | end;
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| 334 | End;
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| 335 | Result := nil;
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| 336 | end;
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| 337 |
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| 338 | Procedure TCustomFontDialog.LayoutControls;
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| 339 | Var
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| 340 | W: longint;
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| 341 | H: longint;
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| 342 | ExampleH: longint;
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| 343 | VSplit: longint;
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| 344 | GrpH: longint;
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| 345 | TopH: longint;
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| 346 | Begin
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| 347 | W := ClientWidth;
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| 348 | H := ClientHeight;
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| 349 |
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| 350 | // Example is minimum 40 pixels, or 20% of height
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| 351 | ExampleH := 40;
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| 352 | if ( H div 5 ) > ExampleH then
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| 353 | ExampleH := H div 5;
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| 354 |
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| 355 | // Base of name/size/style (45 allows for buttons/spacing)
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| 356 | VSplit := 45 + ExampleH;
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| 357 | TopH := H - VSplit - 25;
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| 358 |
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| 359 | GrpH := TopH + 20;
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| 360 | // Left Bottom Width Height
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| 361 | FNameLabel .SetWindowPos( 5, H - 25, W - 210, 20 );
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| 362 | FNameList .SetWindowPos( 5, VSplit, W - 210, TopH );
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| 363 |
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| 364 | FStyleLabel .SetWindowPos( W - 200, H - 25, 120, 20 );
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| 365 |
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| 366 | FStyleListbox .SetWindowPos( W - 200, H - 100, 145, 75 );
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| 367 |
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| 368 | FBoldCheck .SetWindowPos( W - 200, H - 125, 145, 20 );
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| 369 | FItalicCheck .SetWindowPos( W - 200, H - 145, 145, 20 );
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| 370 | FUnderscoreCheck.SetWindowPos( W - 200, H - 165, 145, 20 );
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| 371 | FOutlineCheck .SetWindowPos( W - 200, H - 185, 145, 20 );
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| 372 | FStrikeOutCheck .SetWindowPos( W - 200, H - 205, 145, 20 );
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| 373 |
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| 374 | FSizeLabel .SetWindowPos( W - 50, H - 25, 45, 20 );
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| 375 | FSizeCombo .SetWindowPos( W - 50, VSplit, 45, TopH );
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| 376 |
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| 377 | FExampleText .SetWindowPos( 5, 40, W - 10, ExampleH );
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| 378 |
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| 379 | FActualFaceLabel.SetWindowPos( 180, 10, W - 185, 20 );
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| 380 |
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| 381 | FOKButton .SetWindowPos( 5, 5, 80, 30 );
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| 382 | FCancelButton .SetWindowPos( 90, 5, 80, 30 );
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| 383 |
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| 384 | End;
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| 385 |
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| 386 |
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| 387 | Procedure TCustomFontDialog.SetupShow;
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| 388 | Begin
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| 389 | Inherited SetupShow;
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| 390 |
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| 391 | FNameList.Focus;
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| 392 | FOKButton.Default := True;
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| 393 |
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| 394 | FBoldCheck.Enabled := FAllowSimulations;
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| 395 | FItalicCheck.Enabled := FAllowSimulations;
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| 396 | if not FAllowSimulations then
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| 397 | begin
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| 398 | FBoldCheck.Checked := false;
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| 399 | FItalicCheck.Checked := false;
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| 400 | end;
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| 401 |
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| 402 | FaceName := GetFontFamilyName( FEditFont );
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| 403 | StyleName := GetFontStyleName( FEditFont );
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| 404 | PointSize := FEditFont.PointSize;
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| 405 | Attributes := FEditFont.Attributes;
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| 406 |
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| 407 | FFontLoadRequired := false;
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| 408 |
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| 409 | SelectFont; // display it
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| 410 |
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| 411 | End;
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| 412 |
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| 413 | Procedure TCustomFontDialog.Resize;
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| 414 | begin
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| 415 | inherited Resize;
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| 416 | LayoutControls;
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| 417 | end;
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| 418 |
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| 419 | Function TCustomFontDialog.GetFaceName: string;
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| 420 | begin
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| 421 | if FNameList.ItemIndex = -1 then
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| 422 | Result := ''
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| 423 | else
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| 424 | Result := FNameList.Items[ FNameList.ItemIndex ];
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| 425 | end;
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| 426 |
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| 427 | Procedure TCustomFontDialog.SetFaceName( s: string );
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| 428 | begin
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| 429 | FNameList.ItemIndex := FNameList.Items.IndexOf( s );
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| 430 |
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| 431 | if FNameList.ItemIndex > 4 then
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| 432 | FNameList.TopIndex := FNameList.ItemIndex - 4
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| 433 | else
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| 434 | FNameList.TopIndex := 0;
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| 435 | end;
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| 436 |
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| 437 | Function TCustomFontDialog.GetStyleName: String;
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| 438 | begin
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| 439 | if FStyleListBox.ItemIndex = -1 then
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| 440 | Result := ''
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| 441 | else
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| 442 | Result := FStyleListBox.Items[ FStyleListBox.ItemIndex ];
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| 443 | end;
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| 444 |
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| 445 | Procedure TCustomFontDialog.SetStyleName( s: String );
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| 446 | begin
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| 447 | FStyleListBox.ItemIndex := FStyleListBox.Items.IndexOf( s );
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| 448 |
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| 449 | if FNameList.ItemIndex = -1 then
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| 450 | FNameList.ItemIndex := 0;
|
---|
| 451 | end;
|
---|
| 452 |
|
---|
| 453 | Function TCustomFontDialog.GetAttributes: TFontAttributes;
|
---|
| 454 | Begin
|
---|
| 455 | Result :=[];
|
---|
| 456 | If FItalicCheck.Checked Then
|
---|
| 457 | Include( Result, faItalic );
|
---|
| 458 | If FBoldCheck.Checked Then
|
---|
| 459 | Include( Result, faBold );
|
---|
| 460 | If FOutlineCheck.Checked Then
|
---|
| 461 | Include( Result, faOutline );
|
---|
| 462 | If FStrikeOutCheck.Checked Then
|
---|
| 463 | Include( Result, faStrikeOut );
|
---|
| 464 | If FUnderscoreCheck.Checked Then
|
---|
| 465 | Include( Result, faUnderScore );
|
---|
| 466 | End;
|
---|
| 467 |
|
---|
| 468 | Procedure TCustomFontDialog.SetAttributes( NewValue: TFontAttributes );
|
---|
| 469 | Begin
|
---|
| 470 | if FAllowSimulations then
|
---|
| 471 | begin
|
---|
| 472 | FBoldCheck.Checked := faBold in NewValue;
|
---|
| 473 | FItalicCheck.Checked := faItalic in NewValue;
|
---|
| 474 | end;
|
---|
| 475 | FOutlineCheck.Checked := faOutline in NewValue;
|
---|
| 476 | FStrikeoutCheck.Checked := faStrikeout in NewValue;
|
---|
| 477 | FUnderscoreCheck.Checked := faUnderscore in NewValue;
|
---|
| 478 | End;
|
---|
| 479 |
|
---|
| 480 | Function TCustomFontDialog.GetPointSize: LongInt;
|
---|
| 481 | Var
|
---|
| 482 | S: String;
|
---|
| 483 | C: Integer;
|
---|
| 484 | Begin
|
---|
| 485 | S := FSizeCombo.Text;
|
---|
| 486 | Val( S, Result, C );
|
---|
| 487 | If C <> 0 Then
|
---|
| 488 | // invalid conversion
|
---|
| 489 | Result := 0;
|
---|
| 490 | End;
|
---|
| 491 |
|
---|
| 492 | Procedure TCustomFontDialog.SetPointSize( Value:LongInt );
|
---|
| 493 | Begin
|
---|
| 494 | If Value = 0 Then
|
---|
| 495 | Value := 8;
|
---|
| 496 | FSizeCombo.Text := IntToStr( Value );
|
---|
| 497 |
|
---|
| 498 | // if there's an exact match, select it, if not select nothing
|
---|
| 499 | FSizeCombo.ItemIndex := FSizeCombo.Items.IndexOf( IntToStr( Value ) );
|
---|
| 500 | End;
|
---|
| 501 |
|
---|
| 502 | Function TCustomFontDialog.GetStyleFont: TFont;
|
---|
| 503 | begin
|
---|
| 504 | if FStyleListBox.ItemIndex = -1 then
|
---|
| 505 | begin
|
---|
| 506 | // during startup
|
---|
| 507 | Result := Screen.DefaultFont;
|
---|
| 508 | exit;
|
---|
| 509 | end;
|
---|
| 510 | Result := FStyleListBox.Items.Objects[ FStyleListBox.ItemIndex ] as TFont;
|
---|
| 511 |
|
---|
| 512 | end;
|
---|
| 513 |
|
---|
| 514 | Procedure TCustomFontDialog.SelectFont;
|
---|
| 515 | var
|
---|
| 516 | Attrs: TFontAttributes;
|
---|
| 517 | StyleFont: TFont;
|
---|
| 518 | begin
|
---|
| 519 | if FFontLoadRequired then
|
---|
| 520 | // we are starting up and don't want to set edit font yet!
|
---|
| 521 | exit;
|
---|
| 522 |
|
---|
| 523 | Screen.Cursor := crHourGlass; // in case it takes a while to load up the font
|
---|
| 524 |
|
---|
| 525 | Attrs := GetAttributes;
|
---|
| 526 |
|
---|
| 527 | StyleFont := GetStyleFont;
|
---|
| 528 |
|
---|
| 529 | DereferenceFont( FEditFont );
|
---|
| 530 | FEditFont :=
|
---|
| 531 | Screen.CreateCompatibleFont(
|
---|
| 532 | Screen.GetFontFromPointSize( StyleFont.FaceName,
|
---|
| 533 | GetPointSize ) );
|
---|
| 534 | FEditFont.Attributes := GetAttributes;
|
---|
| 535 |
|
---|
| 536 | FActualFaceLabel.Caption := StyleFont.FaceName;
|
---|
| 537 |
|
---|
| 538 | FExampleText.Font := FEditFont;
|
---|
| 539 |
|
---|
| 540 | Screen.Cursor := crDefault;
|
---|
| 541 | end;
|
---|
| 542 |
|
---|
| 543 | Procedure TCustomFontDialog.SetEditFont( NewFont:TFont );
|
---|
| 544 | Begin
|
---|
| 545 | If NewFont = Nil Then
|
---|
| 546 | NewFont := Screen.DefaultFont;
|
---|
| 547 |
|
---|
| 548 | DereferenceFont( FEditFont );
|
---|
| 549 | FEditFont := NewFont;
|
---|
| 550 | ReferenceFont( FEditFont );
|
---|
| 551 |
|
---|
| 552 | if Handle <> 0 then
|
---|
| 553 | begin
|
---|
| 554 | FaceName := GetFontFamilyName( NewFont );
|
---|
| 555 | StyleName := GetFontStyleName( NewFont );
|
---|
| 556 | PointSize := NewFont.PointSize;
|
---|
| 557 | Attributes := NewFont.Attributes;
|
---|
| 558 | end
|
---|
| 559 | else
|
---|
| 560 | begin
|
---|
| 561 | FFontLoadRequired := true;
|
---|
| 562 | end;
|
---|
| 563 | End;
|
---|
| 564 |
|
---|
| 565 | const
|
---|
| 566 | StandardOutlineSizes: array[ 0 .. 11 ] of longint =
|
---|
| 567 | (
|
---|
| 568 | 4, 5, 6, 8, 10, 12,
|
---|
| 569 | 15, 18, 24, 36, 48, 72
|
---|
| 570 | );
|
---|
| 571 |
|
---|
| 572 | function LongintListCompare( Item1: pointer;
|
---|
| 573 | Item2: pointer ): longint;
|
---|
| 574 | begin
|
---|
| 575 | if item1 < item2 then
|
---|
| 576 | result := -1
|
---|
| 577 | else if item1 > item2 then
|
---|
| 578 | result := 1
|
---|
| 579 | else
|
---|
| 580 | result := 0;
|
---|
| 581 | end;
|
---|
| 582 |
|
---|
| 583 | Procedure TCustomFontDialog.InsertStyles;
|
---|
| 584 | var
|
---|
| 585 | FontList: TStringList;
|
---|
| 586 | OldStyleName: string;
|
---|
| 587 | NewIndex: longint;
|
---|
| 588 | begin
|
---|
| 589 | FontList := FNameList.Items.Objects[ FNameList.ItemIndex ] as TStringList;
|
---|
| 590 | if FStyleListbox.ItemIndex <> -1 then
|
---|
| 591 | OldStyleName := FStyleListbox.Items[ FStyleListbox.ItemIndex ]
|
---|
| 592 | else
|
---|
| 593 | OldStyleName := 'Normal';
|
---|
| 594 | FStyleListbox.Items.Assign( FontList );
|
---|
| 595 |
|
---|
| 596 | NewIndex := FStyleListbox.Items.IndexOf( OldStyleName );
|
---|
| 597 | if NewIndex = -1 then
|
---|
| 598 | NewIndex := FStyleListbox.Items.IndexOf( 'Normal' );
|
---|
| 599 | if NewIndex = -1 then
|
---|
| 600 | NewIndex := 0;
|
---|
| 601 | FStyleListbox.ItemIndex := NewIndex;
|
---|
| 602 | end;
|
---|
| 603 |
|
---|
| 604 | Procedure TCustomFontDialog.InsertSizes;
|
---|
| 605 | var
|
---|
| 606 | Face: string;
|
---|
| 607 | TheFont: TFont;
|
---|
| 608 | FontIndex: longint;
|
---|
| 609 | SizeIndex: longint;
|
---|
| 610 | OldSize: longint;
|
---|
| 611 | SizeString: string;
|
---|
| 612 |
|
---|
| 613 | LimitedSizes: boolean;
|
---|
| 614 | Size: longint;
|
---|
| 615 | NearestSize: longint;
|
---|
| 616 | NearestSizeIndex: longint;
|
---|
| 617 |
|
---|
| 618 | Sizes: TList;
|
---|
| 619 |
|
---|
| 620 | procedure AddSize( const size: longint );
|
---|
| 621 | begin
|
---|
| 622 | if Sizes.IndexOf( pointer( size ) ) = -1 then
|
---|
| 623 | Sizes.Add( pointer( size ) );
|
---|
| 624 | end;
|
---|
| 625 | Begin
|
---|
| 626 | Sizes := TList.Create;
|
---|
| 627 |
|
---|
| 628 | Face := GetStyleFont.FaceName;
|
---|
| 629 | try
|
---|
| 630 | OldSize := StrToInt( FSizeCombo.Caption );
|
---|
| 631 | except
|
---|
| 632 | OldSize := 8;
|
---|
| 633 | end;
|
---|
| 634 |
|
---|
| 635 | FSizeCombo.BeginUpdate;
|
---|
| 636 | FSizeCombo.Clear;
|
---|
| 637 |
|
---|
| 638 | LimitedSizes := true;
|
---|
| 639 |
|
---|
| 640 | For FontIndex := 0 To Screen.FontCount - 1 Do
|
---|
| 641 | Begin
|
---|
| 642 | TheFont := Screen.Fonts[ FontIndex ];
|
---|
| 643 | If TheFont.FaceName = Face Then
|
---|
| 644 | Begin
|
---|
| 645 | // this is a font for the current face.
|
---|
| 646 | if TheFont.FontType = ftBitmap then
|
---|
| 647 | begin
|
---|
| 648 | // just insert the specified point size
|
---|
| 649 | AddSize( TheFont.NominalPointSize );
|
---|
| 650 | end
|
---|
| 651 | else
|
---|
| 652 | begin
|
---|
| 653 | // an outline font...
|
---|
| 654 | LimitedSizes := false;
|
---|
| 655 | for SizeIndex := Low( StandardOutlineSizes ) to High( StandardOutlineSizes ) do
|
---|
| 656 | begin
|
---|
| 657 | AddSize( StandardOutlineSizes[ SizeIndex ] );
|
---|
| 658 | end;
|
---|
| 659 | end;
|
---|
| 660 | end;
|
---|
| 661 | End;
|
---|
| 662 |
|
---|
| 663 | // sort from small to large
|
---|
| 664 | Sizes.Sort( LongintListCompare );
|
---|
| 665 |
|
---|
| 666 | // add to combobox
|
---|
| 667 | For SizeIndex := 0 to Sizes.Count - 1 do
|
---|
| 668 | begin
|
---|
| 669 | SizeString := IntToStr( longint( Sizes[ SizeIndex ] ) );
|
---|
| 670 | FSizeCombo.Items.Add( SizeString );
|
---|
| 671 | end;
|
---|
| 672 |
|
---|
| 673 | if LimitedSizes then
|
---|
| 674 | begin
|
---|
| 675 | // Find nearest match for old size
|
---|
| 676 | if Sizes.Count > 0 then
|
---|
| 677 | begin
|
---|
| 678 | NearestSizeIndex := 0;
|
---|
| 679 | NearestSize := longint( Sizes[ 0 ] );
|
---|
| 680 | for SizeIndex := 1 to Sizes.Count - 1 do
|
---|
| 681 | begin
|
---|
| 682 | Size := longint( Sizes[ SizeIndex ] );
|
---|
| 683 | if Abs( Size - OldSize ) < Abs( NearestSize - OldSize ) then
|
---|
| 684 | begin
|
---|
| 685 | // closer,
|
---|
| 686 | NearestSizeIndex := SizeIndex;
|
---|
| 687 | NearestSize := Size;
|
---|
| 688 | end;
|
---|
| 689 | end;
|
---|
| 690 | end
|
---|
| 691 | else
|
---|
| 692 | begin
|
---|
| 693 | NearestSizeIndex := -1;
|
---|
| 694 | end;
|
---|
| 695 |
|
---|
| 696 | FSizeCombo.ItemIndex := NearestSizeIndex;
|
---|
| 697 | end
|
---|
| 698 | else
|
---|
| 699 | begin
|
---|
| 700 | FSizeCombo.Text := IntToStr( OldSize );
|
---|
| 701 |
|
---|
| 702 | // if there's an exact match, select it, if not select nothing
|
---|
| 703 | NearestSizeIndex := FSizeCombo.Items.IndexOf( IntToStr( OldSize ) );
|
---|
| 704 |
|
---|
| 705 | FSizeCombo.ItemIndex := NearestSizeIndex
|
---|
| 706 |
|
---|
| 707 | end;
|
---|
| 708 |
|
---|
| 709 | FSizeCombo.EndUpdate;
|
---|
| 710 |
|
---|
| 711 | Sizes.Destroy;
|
---|
| 712 | End;
|
---|
| 713 |
|
---|
| 714 |
|
---|
| 715 | {$HINTS OFF}
|
---|
| 716 | Procedure TCustomFontDialog.OnSelectFace( Sender: TObject; Index: LongInt );
|
---|
| 717 | Begin
|
---|
| 718 | FUpdating := true;
|
---|
| 719 | InsertStyles;
|
---|
| 720 | InsertSizes;
|
---|
| 721 | FUpdating := false;
|
---|
| 722 | SelectFont;
|
---|
| 723 | End;
|
---|
| 724 |
|
---|
| 725 | Procedure TCustomFontDialog.OnSelectStyle( Sender: TObject; Index: LongInt );
|
---|
| 726 | Begin
|
---|
| 727 | if FUpdating then
|
---|
| 728 | exit;
|
---|
| 729 | FUpdating := true;
|
---|
| 730 | InsertSizes;
|
---|
| 731 | FUpdating := false;
|
---|
| 732 | SelectFont;
|
---|
| 733 | End;
|
---|
| 734 |
|
---|
| 735 | Procedure TCustomFontDialog.OnSetSize( Sender: TObject );
|
---|
| 736 | Begin
|
---|
| 737 | if FUpdating then
|
---|
| 738 | exit;
|
---|
| 739 | SelectFont;
|
---|
| 740 | End;
|
---|
| 741 |
|
---|
| 742 | Procedure TCustomFontDialog.OnSizeClick( Sender: TObject; Index: longint );
|
---|
| 743 | Begin
|
---|
| 744 | // make a single click select
|
---|
| 745 | FSizeCombo.Text := FSizeCombo.Items[ Index ];
|
---|
| 746 | End;
|
---|
| 747 |
|
---|
| 748 | Procedure TCustomFontDialog.OnStyleChanged( Sender:TObject );
|
---|
| 749 | Begin
|
---|
| 750 | SelectFont;
|
---|
| 751 | End;
|
---|
| 752 |
|
---|
| 753 | Initialization
|
---|
| 754 | {Register classes}
|
---|
| 755 | RegisterClasses([TCustomFontDialog]);
|
---|
| 756 | End.
|
---|
| 757 |
|
---|