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nsMacControl.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsMacControl_h__
00039 #define nsMacControl_h__
00040 
00041 #include "nsIServiceManager.h"
00042 #include "nsICharsetConverterManager.h"
00043 #include "nsChildWindow.h"
00044 #include <Controls.h>
00045 
00046 class nsMacControl : public nsChildWindow
00047 {
00048 private:
00049        typedef nsChildWindow Inherited;
00050 
00051 public:
00052                                           nsMacControl();
00053        virtual                            ~nsMacControl();
00054 
00055        NS_IMETHOD                  Create(nsIWidget *aParent,
00056                                           const nsRect &aRect,
00057                                           EVENT_CALLBACK aHandleEventFunction,
00058                                           nsIDeviceContext *aContext = nsnull,
00059                                           nsIAppShell *aAppShell = nsnull,
00060                                           nsIToolkit *aToolkit = nsnull,
00061                                           nsWidgetInitData *aInitData = nsnull);
00062        NS_IMETHOD                  Destroy();
00063 
00064        virtual void         SetControlType(short type)  {mControlType = type;}
00065        short                       GetControlType()                   {return mControlType;}
00066 
00067        // event handling
00068        virtual PRBool              OnPaint(nsPaintEvent & aEvent);
00069        virtual PRBool              DispatchMouseEvent(nsMouseEvent &aEvent);
00070        static pascal OSStatus      ControlEventHandler(EventHandlerCallRef aHandlerCallRef, EventRef aEvent, void* aUserData);
00071        static pascal OSStatus      WindowEventHandler(EventHandlerCallRef aHandlerCallRef, EventRef aEvent, void* aUserData);
00072     
00073        // nsIWidget interface
00074        NS_IMETHOD                  Enable(PRBool bState);
00075        NS_IMETHOD                  Show(PRBool aState);
00076        NS_IMETHODIMP        SetFont(const nsFont &aFont);
00077 
00078        // Mac string utilities
00079        // (they really should be elsewhere but, well, only the Mac controls use them)
00080        static void          StringToStr255(const nsAString& aText, Str255& aStr255);
00081        static void          Str255ToString(const Str255& aStr255, nsString& aText);
00082 
00083 protected:
00084        
00085        nsresult                    CreateOrReplaceMacControl(short inControlType);
00086 
00087        void                        ClearControl();
00088 
00089        virtual void         GetRectForMacControl(nsRect &outRect);
00090        virtual ControlPartCode     GetControlHiliteState();
00091        void                 SetupControlHiliteState();
00092 
00093        void                        SetupMacControlFont();
00094        void                        ControlChanged(PRInt32 aNewValue);
00095        void                        NSStringSetControlTitle(ControlHandle theControl, nsString title);
00096        void                        SetupMacControlFontForScript(short theScript);
00097        static void                 GetFileSystemCharset(nsCString & fileSystemCharset);
00098 
00099        OSStatus                    InstallEventHandlerOnControl();
00100        void                        RemoveEventHandlerFromControl();
00101 
00102        PRBool                      IsQDStateOK();
00103 
00104        nsString                    mLabel;
00105        PRBool                      mWidgetArmed;
00106        PRBool                      mMouseInButton;
00107 
00108        PRInt32                            mValue;
00109        PRInt32                            mMin;
00110        PRInt32                            mMax;
00111        ControlHandle               mControl;
00112        short                       mControlType;
00113        EventHandlerRef                    mControlEventHandler;
00114        EventHandlerRef                    mWindowEventHandler;
00115 
00116        nsString                    mLastLabel;
00117        nsRect                      mLastBounds;
00118        PRInt32                            mLastValue;
00119        PRInt16                            mLastHilite;
00120 
00121        static nsIUnicodeEncoder*     mUnicodeEncoder;
00122        static nsIUnicodeDecoder*     mUnicodeDecoder;
00123 };
00124 
00125 #endif // nsMacControl_h__