From 46bb010ca7c5eb04551c030105f9999ca80e472f Mon Sep 17 00:00:00 2001 From: tobigun Date: Sun, 8 Jun 2008 15:33:48 +0000 Subject: - set svn:eol-style to native - removed some svn:executable properties from non-executable files git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1144 b956fd51-792f-4845-bead-9b4dfca2ff2c --- Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas | 1846 +++++++++++++-------------- 1 file changed, 923 insertions(+), 923 deletions(-) (limited to 'Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas') diff --git a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas index e1b2347e..094f4e0f 100644 --- a/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas +++ b/Game/Code/lib/JEDI-SDL/SDL/Pas/sdlinput.pas @@ -1,923 +1,923 @@ -unit sdlinput; -{ - $Id: sdlinput.pas,v 1.9 2007/08/22 21:18:43 savage Exp $ - -} -{******************************************************************************} -{ } -{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } -{ SDL Input Wrapper } -{ } -{ } -{ The initial developer of this Pascal code was : } -{ Dominique Louis } -{ } -{ Portions created by Dominique Louis are } -{ Copyright (C) 2003 - 2100 Dominique Louis. } -{ } -{ } -{ Contributor(s) } -{ -------------- } -{ Dominique Louis } -{ } -{ Obtained through: } -{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } -{ } -{ You may retrieve the latest version of this file at the Project } -{ JEDI home page, located at http://delphi-jedi.org } -{ } -{ The contents of this file are used with permission, subject to } -{ the Mozilla Public License Version 1.1 (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.mozilla.org/MPL/MPL-1.1.html } -{ } -{ Software distributed under the License is distributed on an } -{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } -{ implied. See the License for the specific language governing } -{ rights and limitations under the License. } -{ } -{ Description } -{ ----------- } -{ SDL Mouse, Keyboard and Joystick wrapper } -{ } -{ } -{ Requires } -{ -------- } -{ SDL.dll on Windows platforms } -{ libSDL-1.1.so.0 on Linux platform } -{ } -{ Programming Notes } -{ ----------------- } -{ } -{ } -{ } -{ } -{ Revision History } -{ ---------------- } -{ March 12 2003 - DL : Initial creation } -{ } -{ February 02 2004 - DL : Added Custom Cursor Support to the Mouse class } -{ - $Log: sdlinput.pas,v $ - Revision 1.9 2007/08/22 21:18:43 savage - Thanks to Dean for his MouseDelta patch. - - Revision 1.8 2005/08/03 18:57:32 savage - Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class - - Revision 1.7 2004/09/30 22:32:04 savage - Updated with slightly different header comments - - Revision 1.6 2004/09/12 21:52:58 savage - Slight changes to fix some issues with the sdl classes. - - Revision 1.5 2004/05/10 21:11:49 savage - changes required to help get SoAoS off the ground. - - Revision 1.4 2004/05/03 22:38:40 savage - Added the ability to enable or disable certain inputs @ runtime. Basically it just does not call UpdateInput if Enabled = false. - Can also disable and enable input devices via the InputManager. - - Revision 1.3 2004/04/28 21:27:01 savage - Updated Joystick code and event handlers. Needs testing... - - Revision 1.2 2004/02/14 22:36:29 savage - Fixed inconsistencies of using LoadLibrary and LoadModule. - Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures. - - Revision 1.1 2004/02/05 00:08:20 savage - Module 1.0 release - - -} -{******************************************************************************} - -interface - -{$i jedi-sdl.inc} - -uses - Classes, - sdl; - -type - TSDLInputType = ( itJoystick , itKeyBoard, itMouse ); - TSDLInputTypes = set of TSDLInputType; - - TSDLCustomInput = class( TObject ) - private - FEnabled: Boolean; - public - constructor Create; - function UpdateInput( event: TSDL_EVENT ) : Boolean; virtual; abstract; - property Enabled : Boolean read FEnabled write FEnabled; - end; - - TSDLJoyAxisMoveEvent = procedure ( Which: UInt8; Axis: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; - TSDLJoyBallMoveEvent = procedure ( Which: UInt8; Ball: UInt8; RelativePos: TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; - TSDLJoyHatMoveEvent = procedure ( Which: UInt8; Hat: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; - TSDLJoyButtonEvent = procedure ( Which: UInt8; Button: UInt8; State: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; - - - TSDLJoyStick = class( TSDLCustomInput ) - private - FJoystick : PSDL_Joystick; - FJoystickIndex : Integer; - FJoyAxisMoveEvent : TSDLJoyAxisMoveEvent; - FJoyBallMoveEvent : TSDLJoyBallMoveEvent; - FJoyHatMoveEvent : TSDLJoyHatMoveEvent; - FJoyButtonDownEvent : TSDLJoyButtonEvent; - FJoyButtonUpEvent : TSDLJoyButtonEvent; - procedure DoAxisMove( Event : TSDL_Event ); - procedure DoBallMove( Event : TSDL_Event ); - procedure DoHatMove( Event : TSDL_Event ); - procedure DoButtonDown( Event : TSDL_Event ); - procedure DoButtonUp( Event : TSDL_Event ); - function GetName: PChar; - function GetNumAxes: integer; - function GetNumBalls: integer; - function GetNumButtons: integer; - function GetNumHats: integer; - public - constructor Create( Index : Integer ); - destructor Destroy; override; - procedure Open; - procedure Close; - function UpdateInput( Event: TSDL_EVENT ) : Boolean; override; - property Name : PChar read GetName; - property NumAxes : integer read GetNumAxes; - property NumBalls : integer read GetNumBalls; - property NumButtons : integer read GetNumButtons; - property NumHats : integer read GetNumHats; - property OnAxisMove : TSDLJoyAxisMoveEvent read FJoyAxisMoveEvent write FJoyAxisMoveEvent; - property OnBallMove : TSDLJoyBallMoveEvent read FJoyBallMoveEvent write FJoyBallMoveEvent; - property OnHatMove : TSDLJoyHatMoveEvent read FJoyHatMoveEvent write FJoyHatMoveEvent; - property OnButtonDown : TSDLJoyButtonEvent read FJoyButtonDownEvent write FJoyButtonDownEvent; - property OnButtonUp : TSDLJoyButtonEvent read FJoyButtonUpEvent write FJoyButtonUpEvent; - end; - - TSDLJoySticks = class( TObject ) - private - FNumOfJoySticks: Integer; - FJoyStickList : TList; - function GetJoyStick(Index: integer): TSDLJoyStick; - procedure SetJoyStick(Index: integer; const Value: TSDLJoyStick); - public - constructor Create; - destructor Destroy; override; - function UpdateInput( event: TSDL_EVENT ) : Boolean; - property NumOfJoySticks : Integer read FNumOfJoySticks write FNumOfJoySticks; - property JoySticks[ Index : integer ] : TSDLJoyStick read GetJoyStick write SetJoyStick; - end; - - TSDLKeyBoardEvent = procedure ( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; - - TSDLKeyBoard = class( TSDLCustomInput ) - private - FKeys : PKeyStateArr; - FOnKeyUp: TSDLKeyBoardEvent; - FOnKeyDown: TSDLKeyBoardEvent; - procedure DoKeyDown( keysym : PSDL_keysym ); - procedure DoKeyUp( keysym : PSDL_keysym ); - public - function IsKeyDown( Key : TSDLKey ) : Boolean; - function IsKeyUp( Key : TSDLKey ) : Boolean; - function UpdateInput( event: TSDL_EVENT ) : Boolean; override; - property Keys : PKeyStateArr read FKeys write FKeys; - property OnKeyDown : TSDLKeyBoardEvent read FOnKeyDown write FOnKeyDown; - property OnKeyUp : TSDLKeyBoardEvent read FOnKeyUp write FOnKeyUp; - end; - - TSDLMouseButtonEvent = procedure ( Button : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; - TSDLMouseMoveEvent = procedure ( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; - TSDLMouseWheelEvent = procedure ( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; - - TSDLCustomCursor = class( TObject ) - private - FFileName : string; - FHotPoint: TPoint; - procedure SetFileName(const aValue: string ); - function ScanForChar( str : string; ch : Char; startPos : Integer; lookFor : Boolean ) : Integer; - public - constructor Create( const aFileName : string; aHotPoint: TPoint ); - procedure LoadFromFile( const aFileName : string ); virtual; abstract; - procedure LoadFromStream( aStream : TStream ); virtual; abstract; - procedure Show; virtual; abstract; - property FileName : string read FFileName write SetFileName; - property HotPoint : TPoint read FHotPoint write FHotPoint; - end; - - TSDLXPMCursor = class( TSDLCustomCursor ) - private - FCursor : PSDL_Cursor; - procedure FreeCursor; - public - destructor Destroy; override; - procedure LoadFromFile( const aFileName : string ); override; - procedure LoadFromStream( aStream : TStream ); override; - procedure Show; override; - end; - - TSDLCursorList = class( TStringList ) - protected - function GetObject( aIndex : Integer ): TSDLCustomCursor; reintroduce; - procedure PutObject( aIndex : Integer; AObject : TSDLCustomCursor); reintroduce; - public - constructor Create; - function AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; virtual; - end; - - TSDLMouse = class( TSDLCustomInput ) - private - FDragging : Boolean; - FMousePos : TPoint; - FOnMouseUp: TSDLMouseButtonEvent; - FOnMouseDown: TSDLMouseButtonEvent; - FOnMouseMove: TSDLMouseMoveEvent; - FOnMouseWheel: TSDLMouseWheelEvent; - FCursorList : TSDLCursorList; // Cursor Pointer - procedure DoMouseMove( Event: TSDL_Event ); - procedure DoMouseDown( Event: TSDL_Event ); - procedure DoMouseUp( Event: TSDL_Event ); - procedure DoMouseWheelScroll( Event: TSDL_Event ); - function GetMousePosition: TPoint; - procedure SetMousePosition(const Value: TPoint); - function GetMouseDelta: TPoint; - public - destructor Destroy; override; - function UpdateInput( event: TSDL_EVENT ) : Boolean; override; - function MouseIsDown( Button : Integer ) : Boolean; - function MouseIsUp( Button : Integer ) : Boolean; - procedure ShowCursor; - procedure HideCursor; - property OnMouseDown : TSDLMouseButtonEvent read FOnMouseDown write FOnMouseDown; - property OnMouseUp : TSDLMouseButtonEvent read FOnMouseUp write FOnMouseUp; - property OnMouseMove : TSDLMouseMoveEvent read FOnMouseMove write FOnMouseMove; - property OnMouseWheel : TSDLMouseWheelEvent read FOnMouseWheel write FOnMouseWheel; - property MousePosition : TPoint read GetMousePosition write SetMousePosition; - property MouseDelta: TPoint read GetMouseDelta; - property Cursors : TSDLCursorList read FCursorList write FCursorList; - end; - - TSDLInputManager = class( TObject ) - private - FKeyBoard : TSDLKeyBoard; - FMouse : TSDLMouse; - FJoystick : TSDLJoysticks; - public - constructor Create( InitInputs : TSDLInputTypes ); - destructor Destroy; override; - procedure Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); - procedure Enable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); - function UpdateInputs( event: TSDL_EVENT ) : Boolean; - property KeyBoard : TSDLKeyBoard read FKeyBoard write FKeyBoard; - property Mouse : TSDLMouse read FMouse write FMouse; - property JoyStick : TSDLJoysticks read FJoyStick write FJoyStick; - end; - -implementation - -uses - SysUtils; - -{ TSDLCustomInput } -constructor TSDLCustomInput.Create; -begin - inherited; - FEnabled := true; -end; - -{ TSDLJoysticks } -constructor TSDLJoysticks.Create; -var - i : integer; -begin - inherited; - if ( SDL_WasInit( SDL_INIT_JOYSTICK ) = 0 ) then - SDL_InitSubSystem( SDL_INIT_JOYSTICK ); - FNumOfJoySticks := SDL_NumJoysticks; - FJoyStickList := TList.Create; - for i := 0 to FNumOfJoySticks - 1 do - begin - FJoyStickList.Add( TSDLJoyStick.Create( i ) ); - end; -end; - -destructor TSDLJoysticks.Destroy; -var - i : integer; -begin - if FJoyStickList.Count > 0 then - begin - for i := 0 to FJoyStickList.Count - 1 do - begin - TSDLJoyStick( FJoyStickList.Items[i] ).Free; - end; - end; - SDL_QuitSubSystem( SDL_INIT_JOYSTICK ); - inherited; -end; - -function TSDLJoySticks.GetJoyStick(Index: integer): TSDLJoyStick; -begin - Result := TSDLJoyStick( FJoyStickList[ Index ] ); -end; - -procedure TSDLJoySticks.SetJoyStick(Index: integer; - const Value: TSDLJoyStick); -begin - FJoyStickList[ Index ] := @Value; -end; - -function TSDLJoysticks.UpdateInput(event: TSDL_EVENT): Boolean; -var - i : integer; -begin - result := false; - if FJoyStickList.Count > 0 then - begin - for i := 0 to FJoyStickList.Count - 1 do - begin - TSDLJoyStick( FJoyStickList.Items[i] ).UpdateInput( event ); - end; - end; -end; - -{ TSDLKeyBoard } -procedure TSDLKeyBoard.DoKeyDown(keysym: PSDL_keysym); -begin - if Assigned( FOnKeyDown ) then - FOnKeyDown( keysym.sym , keysym.modifier, keysym.unicode ); -end; - -procedure TSDLKeyBoard.DoKeyUp(keysym: PSDL_keysym); -begin - if Assigned( FOnKeyUp ) then - FOnKeyUp( keysym.sym , keysym.modifier, keysym.unicode ); -end; - -function TSDLKeyBoard.IsKeyDown( Key: TSDLKey ): Boolean; -begin - SDL_PumpEvents; - - // Populate Keys array - FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); - Result := ( FKeys[Key] = SDL_PRESSED ); -end; - -function TSDLKeyBoard.IsKeyUp( Key: TSDLKey ): Boolean; -begin - SDL_PumpEvents; - - // Populate Keys array - FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); - Result := ( FKeys[Key] = SDL_RELEASED ); -end; - -function TSDLKeyBoard.UpdateInput(event: TSDL_EVENT): Boolean; -begin - result := false; - if ( FEnabled ) then - begin - case event.type_ of - SDL_KEYDOWN : - begin - // handle key presses - DoKeyDown( @event.key.keysym ); - result := true; - end; - - SDL_KEYUP : - begin - // handle key releases - DoKeyUp( @event.key.keysym ); - result := true; - end; - end; - end; -end; - -{ TSDLMouse } -destructor TSDLMouse.Destroy; -begin - - inherited; -end; - -procedure TSDLMouse.DoMouseDown( Event: TSDL_Event ); -var - CurrentPos : TPoint; -begin - FDragging := true; - if Assigned( FOnMouseDown ) then - begin - CurrentPos.x := event.button.x; - CurrentPos.y := event.button.y; - FOnMouseDown( event.button.button, SDL_GetModState, CurrentPos ); - end; -end; - -procedure TSDLMouse.DoMouseMove( Event: TSDL_Event ); -var - CurrentPos, RelativePos : TPoint; -begin - if Assigned( FOnMouseMove ) then - begin - CurrentPos.x := event.motion.x; - CurrentPos.y := event.motion.y; - RelativePos.x := event.motion.xrel; - RelativePos.y := event.motion.yrel; - FOnMouseMove( SDL_GetModState, CurrentPos, RelativePos ); - end; -end; - -procedure TSDLMouse.DoMouseUp( event: TSDL_EVENT ); -var - Point : TPoint; -begin - FDragging := false; - if Assigned( FOnMouseUp ) then - begin - Point.x := event.button.x; - Point.y := event.button.y; - FOnMouseUp( event.button.button, SDL_GetModState, Point ); - end; -end; - -procedure TSDLMouse.DoMouseWheelScroll( event: TSDL_EVENT ); -var - Point : TPoint; -begin - if Assigned( FOnMouseWheel ) then - begin - Point.x := event.button.x; - Point.y := event.button.y; - if ( event.button.button = SDL_BUTTON_WHEELUP ) then - FOnMouseWheel( SDL_BUTTON_WHEELUP, SDL_GetModState, Point ) - else - FOnMouseWheel( SDL_BUTTON_WHEELDOWN, SDL_GetModState, Point ); - end; -end; - -function TSDLMouse.GetMouseDelta: TPoint; -begin - SDL_PumpEvents; - - SDL_GetRelativeMouseState( Result.X, Result.Y ); -end; - -function TSDLMouse.GetMousePosition: TPoint; -begin - SDL_PumpEvents; - - SDL_GetMouseState( FMousePos.X, FMousePos.Y ); - Result := FMousePos; -end; - -procedure TSDLMouse.HideCursor; -begin - SDL_ShowCursor( SDL_DISABLE ); -end; - -function TSDLMouse.MouseIsDown(Button: Integer): Boolean; -begin - SDL_PumpEvents; - - Result := ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); -end; - -function TSDLMouse.MouseIsUp(Button: Integer): Boolean; -begin - SDL_PumpEvents; - - Result := not ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); -end; - -procedure TSDLMouse.SetMousePosition(const Value: TPoint); -begin - SDL_WarpMouse( Value.x, Value.y ); -end; - -procedure TSDLMouse.ShowCursor; -begin - SDL_ShowCursor( SDL_ENABLE ); -end; - -function TSDLMouse.UpdateInput(event: TSDL_EVENT): Boolean; -begin - result := false; - if ( FEnabled ) then - begin - case event.type_ of - SDL_MOUSEMOTION : - begin - // handle Mouse Move - DoMouseMove( event ); - end; - - SDL_MOUSEBUTTONDOWN : - begin - // handle Mouse Down - if ( event.button.button = SDL_BUTTON_WHEELUP ) - or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then - DoMouseWheelScroll( event ) - else - DoMouseDown( event ); - end; - - SDL_MOUSEBUTTONUP : - begin - // handle Mouse Up - if ( event.button.button = SDL_BUTTON_WHEELUP ) - or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then - DoMouseWheelScroll( event ) - else - DoMouseUp( event ); - end; - end; - end; -end; - -{ TSDLInputManager } -constructor TSDLInputManager.Create(InitInputs: TSDLInputTypes); -begin - inherited Create; - if itJoystick in InitInputs then - FJoystick := TSDLJoysticks.Create; - - if itKeyBoard in InitInputs then - FKeyBoard := TSDLKeyBoard.Create; - - if itMouse in InitInputs then - FMouse := TSDLMouse.Create; -end; - -destructor TSDLInputManager.Destroy; -begin - if FJoystick <> nil then - FreeAndNil( FJoystick ); - if FKeyBoard <> nil then - FreeAndNil( FKeyBoard ); - if FMouse <> nil then - FreeAndNil( FMouse ); - inherited; -end; - -procedure TSDLInputManager.Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer ); -begin - if itJoystick in InitInputs then - FJoystick.JoySticks[ JoyStickNumber ].Enabled := false; - - if itKeyBoard in InitInputs then - FKeyBoard.Enabled := false; - - if itMouse in InitInputs then - FMouse.Enabled := false; -end; - -procedure TSDLInputManager.Enable( InitInputs: TSDLInputTypes; JoyStickNumber: Integer ); -begin - if itJoystick in InitInputs then - FJoystick.JoySticks[ JoyStickNumber ].Enabled := true; - - if itKeyBoard in InitInputs then - FKeyBoard.Enabled := true; - - if itMouse in InitInputs then - FMouse.Enabled := true; -end; - -function TSDLInputManager.UpdateInputs( event: TSDL_EVENT ): Boolean; -begin - Result := false; - if ( FJoystick <> nil ) then - Result := FJoystick.UpdateInput( event ); - if ( FKeyBoard <> nil ) then - Result := FKeyBoard.UpdateInput( event ); - if ( FMouse <> nil ) then - Result := FMouse.UpdateInput( event ); -end; - -{ TSDLJoyStick } -procedure TSDLJoyStick.Close; -begin - SDL_JoystickClose( @FJoystick ); -end; - -constructor TSDLJoyStick.Create( Index : Integer ); -begin - inherited Create; - FJoystick := nil; - FJoystickIndex := Index; -end; - -destructor TSDLJoyStick.Destroy; -begin - if FJoystick <> nil then - Close; - inherited; -end; - -procedure TSDLJoyStick.DoAxisMove(Event: TSDL_Event); -begin - if Assigned( FJoyAxisMoveEvent ) then - begin - FJoyAxisMoveEvent( Event.jaxis.which, Event.jaxis.axis, Event.jaxis.value ); - end -end; - -procedure TSDLJoyStick.DoBallMove(Event: TSDL_Event); -var - BallPoint : TPoint; -begin - if Assigned( FJoyBallMoveEvent ) then - begin - BallPoint.x := Event.jball.xrel; - BallPoint.y := Event.jball.yrel; - FJoyBallMoveEvent( Event.jball.which, Event.jball.ball, BallPoint ); - end; -end; - -procedure TSDLJoyStick.DoButtonDown(Event: TSDL_Event); -begin - if Assigned( FJoyButtonDownEvent ) then - begin - if ( Event.jbutton.state = SDL_PRESSED ) then - FJoyButtonDownEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); - end; -end; - -procedure TSDLJoyStick.DoButtonUp(Event: TSDL_Event); -begin - if Assigned( FJoyButtonUpEvent ) then - begin - if ( Event.jbutton.state = SDL_RELEASED ) then - FJoyButtonUpEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); - end -end; - -procedure TSDLJoyStick.DoHatMove(Event: TSDL_Event); -begin - if Assigned( FJoyHatMoveEvent ) then - begin - FJoyHatMoveEvent( Event.jhat.which, Event.jhat.hat, Event.jhat.value ); - end; -end; - -function TSDLJoyStick.GetName: PChar; -begin - result := FJoystick.name; -end; - -function TSDLJoyStick.GetNumAxes: integer; -begin - result := FJoystick.naxes; -end; - -function TSDLJoyStick.GetNumBalls: integer; -begin - result := FJoystick.nballs; -end; - -function TSDLJoyStick.GetNumButtons: integer; -begin - result := FJoystick.nbuttons; -end; - -function TSDLJoyStick.GetNumHats: integer; -begin - result := FJoystick.nhats; -end; - -procedure TSDLJoyStick.Open; -begin - FJoystick := SDL_JoyStickOpen( FJoystickIndex ); -end; - -function TSDLJoyStick.UpdateInput(Event: TSDL_EVENT): Boolean; -begin - Result := false; - - if ( FEnabled ) then - begin - case event.type_ of - SDL_JOYAXISMOTION : - begin - DoAxisMove( Event ); - end; - - SDL_JOYBALLMOTION : - begin - DoBallMove( Event ); - end; - - SDL_JOYHATMOTION : - begin - DoHatMove( Event ); - end; - - SDL_JOYBUTTONDOWN : - begin - DoButtonDown( Event ); - end; - - SDL_JOYBUTTONUP : - begin - DoButtonUp( Event ); - end; - end; - end; -end; - -{ TSDLCustomCursor } - -constructor TSDLCustomCursor.Create(const aFileName: string; aHotPoint: TPoint); -begin - inherited Create; - FHotPoint := aHotPoint; - LoadFromFile( aFileName ); -end; - -function TSDLCustomCursor.ScanForChar(str: string; ch: Char; - startPos: Integer; lookFor: Boolean): Integer; -begin - Result := -1; - while ( ( ( str[ startPos ] = ch ) <> lookFor ) and ( startPos < Length( str ) ) ) do - inc( startPos ); - if startPos <> Length( str ) then - Result := startPos; -end; - -procedure TSDLCustomCursor.SetFileName(const aValue: string); -begin - LoadFromFile( aValue ); -end; - -{ TSDLXPMCursor } - -destructor TSDLXPMCursor.Destroy; -begin - FreeCursor; - inherited; -end; - -procedure TSDLXPMCursor.FreeCursor; -begin - if FCursor <> nil then - begin - SDL_FreeCursor( FCursor ); - FFileName := ''; - end; -end; - -procedure TSDLXPMCursor.LoadFromFile(const aFileName: string); -var - xpmFile : Textfile; - step : Integer; - holdPos : Integer; - counter : Integer; - dimensions : array[ 1..3 ] of Integer; - clr, clrNone, clrBlack, clrWhite : Char; - data, mask : array of UInt8; - i, col : Integer; - LineString : string; -begin - FreeCursor; - AssignFile( xpmFile, aFileName ); - Reset( xpmFile ); - step := 0; - i := -1; - clrBlack := 'X'; - clrWhite := ','; - clrNone := ' '; - counter := 0; - while not ( eof( xpmFile ) ) do - begin - Readln( xpmFile, LineString ); - // scan for strings - if LineString[ 1 ] = '"' then - begin - case step of - 0 : // Get dimensions (should be width height number-of-colors ???) - begin - HoldPos := 2; - counter := ScanForChar( LineString, ' ', HoldPos, False ); - counter := ScanForChar( LineString, ' ', counter, True ); - dimensions[ 1 ] := StrToInt( Copy( LineString, HoldPos, counter - HoldPos ) ); - counter := ScanForChar( LineString, ' ', counter, False ); - holdPos := counter; - counter := ScanForChar( LineString, ' ', counter, True ); - dimensions[ 2 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); - counter := ScanForChar( LineString, ' ', counter, False ); - holdPos := counter; - counter := ScanForChar( LineString, ' ', counter, True ); - dimensions[ 3 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); - step := 1; - SetLength( data, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); - SetLength( mask, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); - //Log.LogStatus( 'Length = ' + IntToStr( ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ), 'LoadCursorFromFile' ); - end; - 1 : // get the symbols for transparent, black and white - begin - // get the symbol for the color - clr := LineString[ 2 ]; - // look for the 'c' symbol - counter := ScanForChar( LineString, 'c', 3, True ); - inc( counter ); - counter := ScanForChar( LineString, ' ', counter, False ); - if LowerCase( Copy( LineString, counter, 4 ) ) = 'none' then - begin - clrNone := clr; - end; - if LowerCase( Copy( LineString, counter, 7 ) ) = '#ffffff' then - begin - clrWhite := clr; - end; - if LowerCase( Copy( LineString, counter, 7 ) ) = '#000000' then - begin - clrBlack := clr; - end; - dec( dimensions[ 3 ] ); - if dimensions[ 3 ] = 0 then - begin - step := 2; - counter := 0; - end; - end; - 2 : // get cursor information -- modified from the SDL - // documentation of SDL_CreateCursor. - begin - for col := 1 to dimensions[1] do - begin - if ( ( col mod 8 ) <> 1 ) then - begin - data[ i ] := data[ i ] shl 1; - mask[ i ] := mask[ i ] shl 1; - end - else - begin - inc( i ); - data[ i ] := 0; - mask[ i ] := 0; - end; - if LineString[ col ] = clrWhite then - begin - mask[ i ] := mask[ i ] or $01; - end - else if LineString[ col ] = clrBlack then - begin - data[ i ] := data[ i ] or $01; - mask[ i ] := mask[ i ] or $01; - end - else if LineString[ col + 1 ] = clrNone then - begin - // - end; - end; - inc(counter); - if counter = dimensions[2] then - step := 4; - end; - end; - end; - end; - CloseFile( xpmFile ); - FCursor := SDL_CreateCursor( PUInt8( data ), PUInt8( mask ), dimensions[ 1 ], dimensions[ 2 ], FHotPoint.x, FHotPoint.y ); -end; - -procedure TSDLXPMCursor.LoadFromStream(aStream: TStream); -begin - inherited; - -end; - -procedure TSDLXPMCursor.Show; -begin - inherited; - SDL_SetCursor( FCursor ); -end; - -{ TSDLCursorList } -function TSDLCursorList.AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; -begin - result := inherited AddObject( aName, aObject ); -end; - -constructor TSDLCursorList.Create; -begin - inherited; - Duplicates := dupIgnore; -end; - -function TSDLCursorList.GetObject(aIndex: Integer): TSDLCustomCursor; -begin - result := TSDLCustomCursor( inherited GetObject( aIndex ) ); -end; - -procedure TSDLCursorList.PutObject(aIndex: Integer; aObject: TSDLCustomCursor); -begin - inherited PutObject( aIndex, aObject ); -end; - -end. +unit sdlinput; +{ + $Id: sdlinput.pas,v 1.9 2007/08/22 21:18:43 savage Exp $ + +} +{******************************************************************************} +{ } +{ JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer } +{ SDL Input Wrapper } +{ } +{ } +{ The initial developer of this Pascal code was : } +{ Dominique Louis } +{ } +{ Portions created by Dominique Louis are } +{ Copyright (C) 2003 - 2100 Dominique Louis. } +{ } +{ } +{ Contributor(s) } +{ -------------- } +{ Dominique Louis } +{ } +{ Obtained through: } +{ Joint Endeavour of Delphi Innovators ( Project JEDI ) } +{ } +{ You may retrieve the latest version of this file at the Project } +{ JEDI home page, located at http://delphi-jedi.org } +{ } +{ The contents of this file are used with permission, subject to } +{ the Mozilla Public License Version 1.1 (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.mozilla.org/MPL/MPL-1.1.html } +{ } +{ Software distributed under the License is distributed on an } +{ "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or } +{ implied. See the License for the specific language governing } +{ rights and limitations under the License. } +{ } +{ Description } +{ ----------- } +{ SDL Mouse, Keyboard and Joystick wrapper } +{ } +{ } +{ Requires } +{ -------- } +{ SDL.dll on Windows platforms } +{ libSDL-1.1.so.0 on Linux platform } +{ } +{ Programming Notes } +{ ----------------- } +{ } +{ } +{ } +{ } +{ Revision History } +{ ---------------- } +{ March 12 2003 - DL : Initial creation } +{ } +{ February 02 2004 - DL : Added Custom Cursor Support to the Mouse class } +{ + $Log: sdlinput.pas,v $ + Revision 1.9 2007/08/22 21:18:43 savage + Thanks to Dean for his MouseDelta patch. + + Revision 1.8 2005/08/03 18:57:32 savage + Various updates and additions. Mainly to handle OpenGL 3D Window support and better cursor support for the mouse class + + Revision 1.7 2004/09/30 22:32:04 savage + Updated with slightly different header comments + + Revision 1.6 2004/09/12 21:52:58 savage + Slight changes to fix some issues with the sdl classes. + + Revision 1.5 2004/05/10 21:11:49 savage + changes required to help get SoAoS off the ground. + + Revision 1.4 2004/05/03 22:38:40 savage + Added the ability to enable or disable certain inputs @ runtime. Basically it just does not call UpdateInput if Enabled = false. + Can also disable and enable input devices via the InputManager. + + Revision 1.3 2004/04/28 21:27:01 savage + Updated Joystick code and event handlers. Needs testing... + + Revision 1.2 2004/02/14 22:36:29 savage + Fixed inconsistencies of using LoadLibrary and LoadModule. + Now all units make use of LoadModule rather than LoadLibrary and other dynamic proc procedures. + + Revision 1.1 2004/02/05 00:08:20 savage + Module 1.0 release + + +} +{******************************************************************************} + +interface + +{$i jedi-sdl.inc} + +uses + Classes, + sdl; + +type + TSDLInputType = ( itJoystick , itKeyBoard, itMouse ); + TSDLInputTypes = set of TSDLInputType; + + TSDLCustomInput = class( TObject ) + private + FEnabled: Boolean; + public + constructor Create; + function UpdateInput( event: TSDL_EVENT ) : Boolean; virtual; abstract; + property Enabled : Boolean read FEnabled write FEnabled; + end; + + TSDLJoyAxisMoveEvent = procedure ( Which: UInt8; Axis: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyBallMoveEvent = procedure ( Which: UInt8; Ball: UInt8; RelativePos: TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyHatMoveEvent = procedure ( Which: UInt8; Hat: UInt8; Value: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLJoyButtonEvent = procedure ( Which: UInt8; Button: UInt8; State: SInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + + TSDLJoyStick = class( TSDLCustomInput ) + private + FJoystick : PSDL_Joystick; + FJoystickIndex : Integer; + FJoyAxisMoveEvent : TSDLJoyAxisMoveEvent; + FJoyBallMoveEvent : TSDLJoyBallMoveEvent; + FJoyHatMoveEvent : TSDLJoyHatMoveEvent; + FJoyButtonDownEvent : TSDLJoyButtonEvent; + FJoyButtonUpEvent : TSDLJoyButtonEvent; + procedure DoAxisMove( Event : TSDL_Event ); + procedure DoBallMove( Event : TSDL_Event ); + procedure DoHatMove( Event : TSDL_Event ); + procedure DoButtonDown( Event : TSDL_Event ); + procedure DoButtonUp( Event : TSDL_Event ); + function GetName: PChar; + function GetNumAxes: integer; + function GetNumBalls: integer; + function GetNumButtons: integer; + function GetNumHats: integer; + public + constructor Create( Index : Integer ); + destructor Destroy; override; + procedure Open; + procedure Close; + function UpdateInput( Event: TSDL_EVENT ) : Boolean; override; + property Name : PChar read GetName; + property NumAxes : integer read GetNumAxes; + property NumBalls : integer read GetNumBalls; + property NumButtons : integer read GetNumButtons; + property NumHats : integer read GetNumHats; + property OnAxisMove : TSDLJoyAxisMoveEvent read FJoyAxisMoveEvent write FJoyAxisMoveEvent; + property OnBallMove : TSDLJoyBallMoveEvent read FJoyBallMoveEvent write FJoyBallMoveEvent; + property OnHatMove : TSDLJoyHatMoveEvent read FJoyHatMoveEvent write FJoyHatMoveEvent; + property OnButtonDown : TSDLJoyButtonEvent read FJoyButtonDownEvent write FJoyButtonDownEvent; + property OnButtonUp : TSDLJoyButtonEvent read FJoyButtonUpEvent write FJoyButtonUpEvent; + end; + + TSDLJoySticks = class( TObject ) + private + FNumOfJoySticks: Integer; + FJoyStickList : TList; + function GetJoyStick(Index: integer): TSDLJoyStick; + procedure SetJoyStick(Index: integer; const Value: TSDLJoyStick); + public + constructor Create; + destructor Destroy; override; + function UpdateInput( event: TSDL_EVENT ) : Boolean; + property NumOfJoySticks : Integer read FNumOfJoySticks write FNumOfJoySticks; + property JoySticks[ Index : integer ] : TSDLJoyStick read GetJoyStick write SetJoyStick; + end; + + TSDLKeyBoardEvent = procedure ( var Key: TSDLKey; Shift: TSDLMod; unicode : UInt16 ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + TSDLKeyBoard = class( TSDLCustomInput ) + private + FKeys : PKeyStateArr; + FOnKeyUp: TSDLKeyBoardEvent; + FOnKeyDown: TSDLKeyBoardEvent; + procedure DoKeyDown( keysym : PSDL_keysym ); + procedure DoKeyUp( keysym : PSDL_keysym ); + public + function IsKeyDown( Key : TSDLKey ) : Boolean; + function IsKeyUp( Key : TSDLKey ) : Boolean; + function UpdateInput( event: TSDL_EVENT ) : Boolean; override; + property Keys : PKeyStateArr read FKeys write FKeys; + property OnKeyDown : TSDLKeyBoardEvent read FOnKeyDown write FOnKeyDown; + property OnKeyUp : TSDLKeyBoardEvent read FOnKeyUp write FOnKeyUp; + end; + + TSDLMouseButtonEvent = procedure ( Button : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLMouseMoveEvent = procedure ( Shift: TSDLMod; CurrentPos : TPoint; RelativePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + TSDLMouseWheelEvent = procedure ( WheelDelta : Integer; Shift: TSDLMod; MousePos : TPoint ) {$IFNDEF NOT_OO}of object{$ENDIF}; + + TSDLCustomCursor = class( TObject ) + private + FFileName : string; + FHotPoint: TPoint; + procedure SetFileName(const aValue: string ); + function ScanForChar( str : string; ch : Char; startPos : Integer; lookFor : Boolean ) : Integer; + public + constructor Create( const aFileName : string; aHotPoint: TPoint ); + procedure LoadFromFile( const aFileName : string ); virtual; abstract; + procedure LoadFromStream( aStream : TStream ); virtual; abstract; + procedure Show; virtual; abstract; + property FileName : string read FFileName write SetFileName; + property HotPoint : TPoint read FHotPoint write FHotPoint; + end; + + TSDLXPMCursor = class( TSDLCustomCursor ) + private + FCursor : PSDL_Cursor; + procedure FreeCursor; + public + destructor Destroy; override; + procedure LoadFromFile( const aFileName : string ); override; + procedure LoadFromStream( aStream : TStream ); override; + procedure Show; override; + end; + + TSDLCursorList = class( TStringList ) + protected + function GetObject( aIndex : Integer ): TSDLCustomCursor; reintroduce; + procedure PutObject( aIndex : Integer; AObject : TSDLCustomCursor); reintroduce; + public + constructor Create; + function AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; virtual; + end; + + TSDLMouse = class( TSDLCustomInput ) + private + FDragging : Boolean; + FMousePos : TPoint; + FOnMouseUp: TSDLMouseButtonEvent; + FOnMouseDown: TSDLMouseButtonEvent; + FOnMouseMove: TSDLMouseMoveEvent; + FOnMouseWheel: TSDLMouseWheelEvent; + FCursorList : TSDLCursorList; // Cursor Pointer + procedure DoMouseMove( Event: TSDL_Event ); + procedure DoMouseDown( Event: TSDL_Event ); + procedure DoMouseUp( Event: TSDL_Event ); + procedure DoMouseWheelScroll( Event: TSDL_Event ); + function GetMousePosition: TPoint; + procedure SetMousePosition(const Value: TPoint); + function GetMouseDelta: TPoint; + public + destructor Destroy; override; + function UpdateInput( event: TSDL_EVENT ) : Boolean; override; + function MouseIsDown( Button : Integer ) : Boolean; + function MouseIsUp( Button : Integer ) : Boolean; + procedure ShowCursor; + procedure HideCursor; + property OnMouseDown : TSDLMouseButtonEvent read FOnMouseDown write FOnMouseDown; + property OnMouseUp : TSDLMouseButtonEvent read FOnMouseUp write FOnMouseUp; + property OnMouseMove : TSDLMouseMoveEvent read FOnMouseMove write FOnMouseMove; + property OnMouseWheel : TSDLMouseWheelEvent read FOnMouseWheel write FOnMouseWheel; + property MousePosition : TPoint read GetMousePosition write SetMousePosition; + property MouseDelta: TPoint read GetMouseDelta; + property Cursors : TSDLCursorList read FCursorList write FCursorList; + end; + + TSDLInputManager = class( TObject ) + private + FKeyBoard : TSDLKeyBoard; + FMouse : TSDLMouse; + FJoystick : TSDLJoysticks; + public + constructor Create( InitInputs : TSDLInputTypes ); + destructor Destroy; override; + procedure Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); + procedure Enable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer = 0 ); + function UpdateInputs( event: TSDL_EVENT ) : Boolean; + property KeyBoard : TSDLKeyBoard read FKeyBoard write FKeyBoard; + property Mouse : TSDLMouse read FMouse write FMouse; + property JoyStick : TSDLJoysticks read FJoyStick write FJoyStick; + end; + +implementation + +uses + SysUtils; + +{ TSDLCustomInput } +constructor TSDLCustomInput.Create; +begin + inherited; + FEnabled := true; +end; + +{ TSDLJoysticks } +constructor TSDLJoysticks.Create; +var + i : integer; +begin + inherited; + if ( SDL_WasInit( SDL_INIT_JOYSTICK ) = 0 ) then + SDL_InitSubSystem( SDL_INIT_JOYSTICK ); + FNumOfJoySticks := SDL_NumJoysticks; + FJoyStickList := TList.Create; + for i := 0 to FNumOfJoySticks - 1 do + begin + FJoyStickList.Add( TSDLJoyStick.Create( i ) ); + end; +end; + +destructor TSDLJoysticks.Destroy; +var + i : integer; +begin + if FJoyStickList.Count > 0 then + begin + for i := 0 to FJoyStickList.Count - 1 do + begin + TSDLJoyStick( FJoyStickList.Items[i] ).Free; + end; + end; + SDL_QuitSubSystem( SDL_INIT_JOYSTICK ); + inherited; +end; + +function TSDLJoySticks.GetJoyStick(Index: integer): TSDLJoyStick; +begin + Result := TSDLJoyStick( FJoyStickList[ Index ] ); +end; + +procedure TSDLJoySticks.SetJoyStick(Index: integer; + const Value: TSDLJoyStick); +begin + FJoyStickList[ Index ] := @Value; +end; + +function TSDLJoysticks.UpdateInput(event: TSDL_EVENT): Boolean; +var + i : integer; +begin + result := false; + if FJoyStickList.Count > 0 then + begin + for i := 0 to FJoyStickList.Count - 1 do + begin + TSDLJoyStick( FJoyStickList.Items[i] ).UpdateInput( event ); + end; + end; +end; + +{ TSDLKeyBoard } +procedure TSDLKeyBoard.DoKeyDown(keysym: PSDL_keysym); +begin + if Assigned( FOnKeyDown ) then + FOnKeyDown( keysym.sym , keysym.modifier, keysym.unicode ); +end; + +procedure TSDLKeyBoard.DoKeyUp(keysym: PSDL_keysym); +begin + if Assigned( FOnKeyUp ) then + FOnKeyUp( keysym.sym , keysym.modifier, keysym.unicode ); +end; + +function TSDLKeyBoard.IsKeyDown( Key: TSDLKey ): Boolean; +begin + SDL_PumpEvents; + + // Populate Keys array + FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); + Result := ( FKeys[Key] = SDL_PRESSED ); +end; + +function TSDLKeyBoard.IsKeyUp( Key: TSDLKey ): Boolean; +begin + SDL_PumpEvents; + + // Populate Keys array + FKeys := PKeyStateArr( SDL_GetKeyState( nil ) ); + Result := ( FKeys[Key] = SDL_RELEASED ); +end; + +function TSDLKeyBoard.UpdateInput(event: TSDL_EVENT): Boolean; +begin + result := false; + if ( FEnabled ) then + begin + case event.type_ of + SDL_KEYDOWN : + begin + // handle key presses + DoKeyDown( @event.key.keysym ); + result := true; + end; + + SDL_KEYUP : + begin + // handle key releases + DoKeyUp( @event.key.keysym ); + result := true; + end; + end; + end; +end; + +{ TSDLMouse } +destructor TSDLMouse.Destroy; +begin + + inherited; +end; + +procedure TSDLMouse.DoMouseDown( Event: TSDL_Event ); +var + CurrentPos : TPoint; +begin + FDragging := true; + if Assigned( FOnMouseDown ) then + begin + CurrentPos.x := event.button.x; + CurrentPos.y := event.button.y; + FOnMouseDown( event.button.button, SDL_GetModState, CurrentPos ); + end; +end; + +procedure TSDLMouse.DoMouseMove( Event: TSDL_Event ); +var + CurrentPos, RelativePos : TPoint; +begin + if Assigned( FOnMouseMove ) then + begin + CurrentPos.x := event.motion.x; + CurrentPos.y := event.motion.y; + RelativePos.x := event.motion.xrel; + RelativePos.y := event.motion.yrel; + FOnMouseMove( SDL_GetModState, CurrentPos, RelativePos ); + end; +end; + +procedure TSDLMouse.DoMouseUp( event: TSDL_EVENT ); +var + Point : TPoint; +begin + FDragging := false; + if Assigned( FOnMouseUp ) then + begin + Point.x := event.button.x; + Point.y := event.button.y; + FOnMouseUp( event.button.button, SDL_GetModState, Point ); + end; +end; + +procedure TSDLMouse.DoMouseWheelScroll( event: TSDL_EVENT ); +var + Point : TPoint; +begin + if Assigned( FOnMouseWheel ) then + begin + Point.x := event.button.x; + Point.y := event.button.y; + if ( event.button.button = SDL_BUTTON_WHEELUP ) then + FOnMouseWheel( SDL_BUTTON_WHEELUP, SDL_GetModState, Point ) + else + FOnMouseWheel( SDL_BUTTON_WHEELDOWN, SDL_GetModState, Point ); + end; +end; + +function TSDLMouse.GetMouseDelta: TPoint; +begin + SDL_PumpEvents; + + SDL_GetRelativeMouseState( Result.X, Result.Y ); +end; + +function TSDLMouse.GetMousePosition: TPoint; +begin + SDL_PumpEvents; + + SDL_GetMouseState( FMousePos.X, FMousePos.Y ); + Result := FMousePos; +end; + +procedure TSDLMouse.HideCursor; +begin + SDL_ShowCursor( SDL_DISABLE ); +end; + +function TSDLMouse.MouseIsDown(Button: Integer): Boolean; +begin + SDL_PumpEvents; + + Result := ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); +end; + +function TSDLMouse.MouseIsUp(Button: Integer): Boolean; +begin + SDL_PumpEvents; + + Result := not ( SDL_GetMouseState( FMousePos.X, FMousePos.Y ) and SDL_BUTTON( Button ) = 0 ); +end; + +procedure TSDLMouse.SetMousePosition(const Value: TPoint); +begin + SDL_WarpMouse( Value.x, Value.y ); +end; + +procedure TSDLMouse.ShowCursor; +begin + SDL_ShowCursor( SDL_ENABLE ); +end; + +function TSDLMouse.UpdateInput(event: TSDL_EVENT): Boolean; +begin + result := false; + if ( FEnabled ) then + begin + case event.type_ of + SDL_MOUSEMOTION : + begin + // handle Mouse Move + DoMouseMove( event ); + end; + + SDL_MOUSEBUTTONDOWN : + begin + // handle Mouse Down + if ( event.button.button = SDL_BUTTON_WHEELUP ) + or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then + DoMouseWheelScroll( event ) + else + DoMouseDown( event ); + end; + + SDL_MOUSEBUTTONUP : + begin + // handle Mouse Up + if ( event.button.button = SDL_BUTTON_WHEELUP ) + or ( event.button.button = SDL_BUTTON_WHEELDOWN ) then + DoMouseWheelScroll( event ) + else + DoMouseUp( event ); + end; + end; + end; +end; + +{ TSDLInputManager } +constructor TSDLInputManager.Create(InitInputs: TSDLInputTypes); +begin + inherited Create; + if itJoystick in InitInputs then + FJoystick := TSDLJoysticks.Create; + + if itKeyBoard in InitInputs then + FKeyBoard := TSDLKeyBoard.Create; + + if itMouse in InitInputs then + FMouse := TSDLMouse.Create; +end; + +destructor TSDLInputManager.Destroy; +begin + if FJoystick <> nil then + FreeAndNil( FJoystick ); + if FKeyBoard <> nil then + FreeAndNil( FKeyBoard ); + if FMouse <> nil then + FreeAndNil( FMouse ); + inherited; +end; + +procedure TSDLInputManager.Disable( InitInputs : TSDLInputTypes; JoyStickNumber : Integer ); +begin + if itJoystick in InitInputs then + FJoystick.JoySticks[ JoyStickNumber ].Enabled := false; + + if itKeyBoard in InitInputs then + FKeyBoard.Enabled := false; + + if itMouse in InitInputs then + FMouse.Enabled := false; +end; + +procedure TSDLInputManager.Enable( InitInputs: TSDLInputTypes; JoyStickNumber: Integer ); +begin + if itJoystick in InitInputs then + FJoystick.JoySticks[ JoyStickNumber ].Enabled := true; + + if itKeyBoard in InitInputs then + FKeyBoard.Enabled := true; + + if itMouse in InitInputs then + FMouse.Enabled := true; +end; + +function TSDLInputManager.UpdateInputs( event: TSDL_EVENT ): Boolean; +begin + Result := false; + if ( FJoystick <> nil ) then + Result := FJoystick.UpdateInput( event ); + if ( FKeyBoard <> nil ) then + Result := FKeyBoard.UpdateInput( event ); + if ( FMouse <> nil ) then + Result := FMouse.UpdateInput( event ); +end; + +{ TSDLJoyStick } +procedure TSDLJoyStick.Close; +begin + SDL_JoystickClose( @FJoystick ); +end; + +constructor TSDLJoyStick.Create( Index : Integer ); +begin + inherited Create; + FJoystick := nil; + FJoystickIndex := Index; +end; + +destructor TSDLJoyStick.Destroy; +begin + if FJoystick <> nil then + Close; + inherited; +end; + +procedure TSDLJoyStick.DoAxisMove(Event: TSDL_Event); +begin + if Assigned( FJoyAxisMoveEvent ) then + begin + FJoyAxisMoveEvent( Event.jaxis.which, Event.jaxis.axis, Event.jaxis.value ); + end +end; + +procedure TSDLJoyStick.DoBallMove(Event: TSDL_Event); +var + BallPoint : TPoint; +begin + if Assigned( FJoyBallMoveEvent ) then + begin + BallPoint.x := Event.jball.xrel; + BallPoint.y := Event.jball.yrel; + FJoyBallMoveEvent( Event.jball.which, Event.jball.ball, BallPoint ); + end; +end; + +procedure TSDLJoyStick.DoButtonDown(Event: TSDL_Event); +begin + if Assigned( FJoyButtonDownEvent ) then + begin + if ( Event.jbutton.state = SDL_PRESSED ) then + FJoyButtonDownEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); + end; +end; + +procedure TSDLJoyStick.DoButtonUp(Event: TSDL_Event); +begin + if Assigned( FJoyButtonUpEvent ) then + begin + if ( Event.jbutton.state = SDL_RELEASED ) then + FJoyButtonUpEvent( Event.jbutton.which, Event.jbutton.button, Event.jbutton.state ); + end +end; + +procedure TSDLJoyStick.DoHatMove(Event: TSDL_Event); +begin + if Assigned( FJoyHatMoveEvent ) then + begin + FJoyHatMoveEvent( Event.jhat.which, Event.jhat.hat, Event.jhat.value ); + end; +end; + +function TSDLJoyStick.GetName: PChar; +begin + result := FJoystick.name; +end; + +function TSDLJoyStick.GetNumAxes: integer; +begin + result := FJoystick.naxes; +end; + +function TSDLJoyStick.GetNumBalls: integer; +begin + result := FJoystick.nballs; +end; + +function TSDLJoyStick.GetNumButtons: integer; +begin + result := FJoystick.nbuttons; +end; + +function TSDLJoyStick.GetNumHats: integer; +begin + result := FJoystick.nhats; +end; + +procedure TSDLJoyStick.Open; +begin + FJoystick := SDL_JoyStickOpen( FJoystickIndex ); +end; + +function TSDLJoyStick.UpdateInput(Event: TSDL_EVENT): Boolean; +begin + Result := false; + + if ( FEnabled ) then + begin + case event.type_ of + SDL_JOYAXISMOTION : + begin + DoAxisMove( Event ); + end; + + SDL_JOYBALLMOTION : + begin + DoBallMove( Event ); + end; + + SDL_JOYHATMOTION : + begin + DoHatMove( Event ); + end; + + SDL_JOYBUTTONDOWN : + begin + DoButtonDown( Event ); + end; + + SDL_JOYBUTTONUP : + begin + DoButtonUp( Event ); + end; + end; + end; +end; + +{ TSDLCustomCursor } + +constructor TSDLCustomCursor.Create(const aFileName: string; aHotPoint: TPoint); +begin + inherited Create; + FHotPoint := aHotPoint; + LoadFromFile( aFileName ); +end; + +function TSDLCustomCursor.ScanForChar(str: string; ch: Char; + startPos: Integer; lookFor: Boolean): Integer; +begin + Result := -1; + while ( ( ( str[ startPos ] = ch ) <> lookFor ) and ( startPos < Length( str ) ) ) do + inc( startPos ); + if startPos <> Length( str ) then + Result := startPos; +end; + +procedure TSDLCustomCursor.SetFileName(const aValue: string); +begin + LoadFromFile( aValue ); +end; + +{ TSDLXPMCursor } + +destructor TSDLXPMCursor.Destroy; +begin + FreeCursor; + inherited; +end; + +procedure TSDLXPMCursor.FreeCursor; +begin + if FCursor <> nil then + begin + SDL_FreeCursor( FCursor ); + FFileName := ''; + end; +end; + +procedure TSDLXPMCursor.LoadFromFile(const aFileName: string); +var + xpmFile : Textfile; + step : Integer; + holdPos : Integer; + counter : Integer; + dimensions : array[ 1..3 ] of Integer; + clr, clrNone, clrBlack, clrWhite : Char; + data, mask : array of UInt8; + i, col : Integer; + LineString : string; +begin + FreeCursor; + AssignFile( xpmFile, aFileName ); + Reset( xpmFile ); + step := 0; + i := -1; + clrBlack := 'X'; + clrWhite := ','; + clrNone := ' '; + counter := 0; + while not ( eof( xpmFile ) ) do + begin + Readln( xpmFile, LineString ); + // scan for strings + if LineString[ 1 ] = '"' then + begin + case step of + 0 : // Get dimensions (should be width height number-of-colors ???) + begin + HoldPos := 2; + counter := ScanForChar( LineString, ' ', HoldPos, False ); + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 1 ] := StrToInt( Copy( LineString, HoldPos, counter - HoldPos ) ); + counter := ScanForChar( LineString, ' ', counter, False ); + holdPos := counter; + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 2 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); + counter := ScanForChar( LineString, ' ', counter, False ); + holdPos := counter; + counter := ScanForChar( LineString, ' ', counter, True ); + dimensions[ 3 ] := StrToInt( Copy( LineString, holdPos, counter - HoldPos ) ); + step := 1; + SetLength( data, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); + SetLength( mask, ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ); + //Log.LogStatus( 'Length = ' + IntToStr( ( dimensions[ 1 ] * dimensions[ 2 ] ) div 8 ), 'LoadCursorFromFile' ); + end; + 1 : // get the symbols for transparent, black and white + begin + // get the symbol for the color + clr := LineString[ 2 ]; + // look for the 'c' symbol + counter := ScanForChar( LineString, 'c', 3, True ); + inc( counter ); + counter := ScanForChar( LineString, ' ', counter, False ); + if LowerCase( Copy( LineString, counter, 4 ) ) = 'none' then + begin + clrNone := clr; + end; + if LowerCase( Copy( LineString, counter, 7 ) ) = '#ffffff' then + begin + clrWhite := clr; + end; + if LowerCase( Copy( LineString, counter, 7 ) ) = '#000000' then + begin + clrBlack := clr; + end; + dec( dimensions[ 3 ] ); + if dimensions[ 3 ] = 0 then + begin + step := 2; + counter := 0; + end; + end; + 2 : // get cursor information -- modified from the SDL + // documentation of SDL_CreateCursor. + begin + for col := 1 to dimensions[1] do + begin + if ( ( col mod 8 ) <> 1 ) then + begin + data[ i ] := data[ i ] shl 1; + mask[ i ] := mask[ i ] shl 1; + end + else + begin + inc( i ); + data[ i ] := 0; + mask[ i ] := 0; + end; + if LineString[ col ] = clrWhite then + begin + mask[ i ] := mask[ i ] or $01; + end + else if LineString[ col ] = clrBlack then + begin + data[ i ] := data[ i ] or $01; + mask[ i ] := mask[ i ] or $01; + end + else if LineString[ col + 1 ] = clrNone then + begin + // + end; + end; + inc(counter); + if counter = dimensions[2] then + step := 4; + end; + end; + end; + end; + CloseFile( xpmFile ); + FCursor := SDL_CreateCursor( PUInt8( data ), PUInt8( mask ), dimensions[ 1 ], dimensions[ 2 ], FHotPoint.x, FHotPoint.y ); +end; + +procedure TSDLXPMCursor.LoadFromStream(aStream: TStream); +begin + inherited; + +end; + +procedure TSDLXPMCursor.Show; +begin + inherited; + SDL_SetCursor( FCursor ); +end; + +{ TSDLCursorList } +function TSDLCursorList.AddCursor(const aName : string; aObject : TSDLCustomCursor): Integer; +begin + result := inherited AddObject( aName, aObject ); +end; + +constructor TSDLCursorList.Create; +begin + inherited; + Duplicates := dupIgnore; +end; + +function TSDLCursorList.GetObject(aIndex: Integer): TSDLCustomCursor; +begin + result := TSDLCustomCursor( inherited GetObject( aIndex ) ); +end; + +procedure TSDLCursorList.PutObject(aIndex: Integer; aObject: TSDLCustomCursor); +begin + inherited PutObject( aIndex, aObject ); +end; + +end. -- cgit v1.2.3