201 lines
7.5 KiB
C++
201 lines
7.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsBaseWidget_h__
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#define nsBaseWidget_h__
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#include "nsRect.h"
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#include "nsIWidget.h"
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#include "nsIEnumerator.h"
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#include "nsIMouseListener.h"
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#include "nsIEventListener.h"
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#include "nsIMenuListener.h"
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#include "nsIToolkit.h"
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#include "nsStringUtil.h"
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#include "nsString.h"
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#include "nsVoidArray.h"
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#include "nsISupportsArray.h"
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#include "nsCOMPtr.h"
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/**
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* Common widget implementation used as base class for native
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* or crossplatform implementations of Widgets.
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* All cross-platform behavior that all widgets need to implement
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* should be placed in this class.
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* (Note: widget implementations are not required to use this
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* class, but it gives them a head start.)
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*/
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class nsBaseWidget : public nsIWidget
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{
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public:
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nsBaseWidget();
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virtual ~nsBaseWidget();
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NS_DECL_ISUPPORTS
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NS_IMETHOD PreCreateWidget(nsWidgetInitData *aWidgetInitData) { return NS_OK;}
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// nsIWidget interface
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NS_IMETHOD CaptureMouse(PRBool aCapture);
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NS_IMETHOD InvalidateRegion(const nsIRegion *aRegion, PRBool aIsSynchronous);
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NS_IMETHOD GetClientData(void*& aClientData);
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NS_IMETHOD SetClientData(void* aClientData);
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NS_IMETHOD Destroy();
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virtual nsIWidget* GetParent(void);
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virtual nsIEnumerator* GetChildren();
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virtual void AddChild(nsIWidget* aChild);
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virtual void RemoveChild(nsIWidget* aChild);
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NS_IMETHOD SetZIndex(PRInt32 aZIndex);
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NS_IMETHOD GetZIndex(PRInt32* aZIndex);
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virtual nscolor GetForegroundColor(void);
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NS_IMETHOD SetForegroundColor(const nscolor &aColor);
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virtual nscolor GetBackgroundColor(void);
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NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
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virtual nsCursor GetCursor();
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NS_IMETHOD SetCursor(nsCursor aCursor);
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virtual nsIRenderingContext* GetRenderingContext();
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virtual nsIDeviceContext* GetDeviceContext();
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virtual nsIAppShell * GetAppShell();
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virtual nsIToolkit* GetToolkit();
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NS_IMETHOD SetModal(void);
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NS_IMETHOD SetWindowType(nsWindowType aWindowType);
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NS_IMETHOD SetBorderStyle(nsBorderStyle aBorderStyle);
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NS_IMETHOD AddMouseListener(nsIMouseListener * aListener);
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NS_IMETHOD AddEventListener(nsIEventListener * aListener);
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NS_IMETHOD AddMenuListener(nsIMenuListener * aListener);
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NS_IMETHOD SetBounds(const nsRect &aRect);
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NS_IMETHOD GetBounds(nsRect &aRect);
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NS_IMETHOD GetBoundsAppUnits(nsRect &aRect, float aAppUnits);
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NS_IMETHOD GetClientBounds(nsRect &aRect);
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NS_IMETHOD GetBorderSize(PRInt32 &aWidth, PRInt32 &aHeight);
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NS_IMETHOD Paint(nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect);
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#ifdef LOSER
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NS_IMETHOD SetVerticalScrollbar(nsIWidget * aScrollbar);
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#endif
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NS_IMETHOD EnableDragDrop(PRBool aEnable);
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virtual void ConvertToDeviceCoordinates(nscoord &aX,nscoord &aY) {}
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virtual void FreeNativeData(void * data, PRUint32 aDataType) {}//~~~
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protected:
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virtual void DrawScaledRect(nsIRenderingContext& aRenderingContext,
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const nsRect & aRect,
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float aScale,
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float aAppUnits);
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virtual void DrawScaledLine(nsIRenderingContext& aRenderingContext,
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nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY,
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float aScale, float aAppUnits, PRBool aIsHorz);
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virtual void OnDestroy();
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virtual void BaseCreate(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData);
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protected:
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void* mClientData;
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EVENT_CALLBACK mEventCallback;
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nsIDeviceContext *mContext;
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nsIAppShell *mAppShell;
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nsIToolkit *mToolkit;
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nsIMouseListener *mMouseListener;
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nsIEventListener *mEventListener;
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nsIMenuListener *mMenuListener;
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nscolor mBackground;
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nscolor mForeground;
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nsCursor mCursor;
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nsWindowType mWindowType;
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nsBorderStyle mBorderStyle;
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PRBool mIsShiftDown;
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PRBool mIsControlDown;
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PRBool mIsAltDown;
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PRBool mIsDestroying;
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PRBool mOnDestroyCalled;
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nsRect mBounds;
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#ifdef LOSER
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nsIWidget *mVScrollbar;
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#endif
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PRInt32 mZIndex;
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// keep the list of children
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nsCOMPtr<nsISupportsArray> mChildren;
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class Enumerator : public nsIBidirectionalEnumerator {
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public:
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NS_DECL_ISUPPORTS
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Enumerator(nsBaseWidget & inParent);
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virtual ~Enumerator();
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NS_DECL_NSIENUMERATOR
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NS_DECL_NSIBIDIRECTIONALENUMERATOR
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private:
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PRUint32 mCurrentPosition;
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nsBaseWidget& mParent;
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};
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friend class Enumerator;
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// Enumeration of the methods which are accessable on the "main GUI thread"
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// via the CallMethod(...) mechanism...
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// see nsSwitchToUIThread
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enum {
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CREATE = 0x0101,
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CREATE_NATIVE,
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DESTROY,
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SET_FOCUS,
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SET_CURSOR,
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CREATE_HACK
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};
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#ifdef NS_DEBUG
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protected:
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static nsAutoString debug_GuiEventToString(nsGUIEvent * aGuiEvent);
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static PRBool debug_WantPaintFlashing();
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static void debug_DumpInvalidate(FILE * aFileOut,
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nsIWidget * aWidget,
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const nsRect * aRect,
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PRBool aIsSynchronous,
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const nsCAutoString & aWidgetName,
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PRInt32 aWindowID);
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static void debug_DumpEvent(FILE * aFileOut,
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nsIWidget * aWidget,
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nsGUIEvent * aGuiEvent,
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const nsCAutoString & aWidgetName,
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PRInt32 aWindowID);
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static void debug_DumpPaintEvent(FILE * aFileOut,
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nsIWidget * aWidget,
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nsPaintEvent * aPaintEvent,
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const nsCAutoString & aWidgetName,
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PRInt32 aWindowID);
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public:
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static void debug_CleanupCrapSoThatBruceAndPurifyAreHappy();
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#endif
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};
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#endif // nsBaseWidget_h__
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