completely rewritten!
This is the CORE of the NEW drawing code, which WORKS very well! :-) ATM, only WinBorder remains to be rewritten, but that would be an easy job, because the core is here in Layer class and WinBorder is just a subclass of it... git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6725 a95241bf-73f2-0310-859d-f6bbb57e9c96
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Adi Oanca
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@ -1,31 +1,3 @@
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//------------------------------------------------------------------------------
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// Copyright (c) 2001-2002, OpenBeOS
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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// File Name: Layer.h
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// Author: DarkWyrm <bpmagic@columbus.rr.com>
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// Adi Oanca <adioanca@myrealbox.com>
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// Description: Class used for rendering to the frame buffer. One layer per
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// view on screen and also for window decorators
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//
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//------------------------------------------------------------------------------
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#ifndef _LAYER_H_
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#define _LAYER_H_
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@ -36,76 +8,56 @@
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#include <String.h>
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#include <OS.h>
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#include <Locker.h>
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#include "LayerData.h"
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#include "TokenHandler.h"
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#include "RGBColor.h"
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class ServerWindow;
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class PortLink;
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class RootLayer;
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class WinBorder;
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class Screen;
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class ServerCursor;
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//class MyDriver;
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class DisplayDriver;
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class Desktop;
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class Workspace;
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class LayerData;
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/*!
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\class Layer Layer.h
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\brief Shadow BView class
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Layers provide all sorts of functionality. They are the shadow class for BViews,
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but they also provide the base class for other classes which handle drawing to
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the frame buffer, like RootLayer and WinBorder.
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*/
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class Layer
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{
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public:
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Layer(BRect frame, const char *name, int32 token, uint32 resize,
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uint32 flags, ServerWindow *win);
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uint32 flags, DisplayDriver *driver);
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virtual ~Layer(void);
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void AddChild(Layer *child, RootLayer *rootLayer);
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void AddChild(Layer *child, RootLayer *rootLayer = NULL);
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void RemoveChild(Layer *child);
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void RemoveSelf();
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bool HasChild(Layer* layer) const;
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RootLayer* GetRootLayer() const;
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bool HasChild(Layer* layer);
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RootLayer* GetRootLayer() const { return fRootLayer; }
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uint32 CountChildren(void) const;
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Layer* FindLayer(const int32 token);
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Layer* LayerAt(const BPoint &pt);
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virtual Layer* TopLayer() const { return _topchild; }
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virtual Layer* LowerSibling() const { return _lowersibling; }
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virtual Layer* UpperSibling() const { return _uppersibling; }
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virtual Layer* BottomLayer() const { return _bottomchild; }
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virtual Layer* VirtualTopChild() const{ return _topchild; }
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virtual Layer* VirtualLowerSibling() const{ return _lowersibling; }
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virtual Layer* VirtualUpperSibling() const{ return _uppersibling; }
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virtual Layer* VirtualBottomChild() const{ return _bottomchild; }
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virtual Layer* VirtualTopChild() const;
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virtual Layer* VirtualLowerSibling() const;
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virtual Layer* VirtualUpperSibling() const;
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virtual Layer* VirtualBottomChild() const;
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const char* GetName(void) const { return (_name)?_name->String():NULL; }
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LayerData* GetLayerData(void) const { return _layerdata; }
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void SetLayerCursor(ServerCursor *csr);
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ServerCursor* GetLayerCursor(void) const;
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virtual void MouseTransit(uint32 transit);
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void Invalidate(const BRect &rect);
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void FullInvalidate(const BRect &rect);
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void FullInvalidate(const BRegion ®ion);
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void Invalidate(const BRegion ®ion);
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void DoInvalidate(const BRegion ®, Layer *start);
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virtual void RebuildRegions( const BRect& r );
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void RebuildChildRegions( const BRect &r, Layer* startFrom );
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void RebuildFullRegion(void);
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void MoveRegionsBy(float x, float y);
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void ResizeRegionsBy(float x, float y);
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void RequestClientUpdate(const BRect &rect);
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void RequestDraw(const BRect &r);
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void StartRebuildRegions( const BRegion& reg, Layer *target, uint32 action, BPoint& pt);
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void RebuildRegions( const BRegion& reg, uint32 action, BPoint pt, BPoint ptOffset);
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uint32 ResizeOthers(float x, float y, BPoint coords[], BPoint *ptOffset);
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void Redraw(const BRegion& reg, Layer *startFrom=NULL);
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void EmptyGlobals();
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virtual void Draw(const BRect &r);
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void SendViewMovedMsg();
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void SendViewResizedMsg();
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virtual void Show(void);
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virtual void Hide(void);
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bool IsHidden(void) const;
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@ -125,6 +77,8 @@ public:
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BRegion ConvertFromTop(BRegion *reg);
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BRect ConvertFromTop(BRect rect);
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DisplayDriver* GetDisplayDriver() const { return fDriver; }
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void PruneTree(void);
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void PrintToStream(void);
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@ -132,7 +86,14 @@ public:
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void PrintTree();
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// server "private" - should not be used
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void SetRootLayer(RootLayer* rl);
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void SetRootLayer(RootLayer* rl){ fRootLayer = rl; }
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void SetServerWindow(ServerWindow *win);
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private:
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void RequestClientUpdate(const BRegion ®, Layer *startFrom);
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void RequestDraw(const BRegion ®, Layer *startFrom, bool redraw=false);
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ServerWindow* SearchForServerWindow() const;
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protected:
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friend class RootLayer;
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friend class WinBorder;
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@ -140,7 +101,7 @@ protected:
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friend class ServerWindow;
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friend class Desktop;
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friend class Workspace;
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BRect _frame;
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BPoint _boundsLeftTop;
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Layer *_parent,
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@ -149,9 +110,12 @@ protected:
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*_topchild,
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*_bottomchild;
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mutable Layer *fCurrent;
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BRegion _visible,
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_fullVisible,
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_full;
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_full,
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fUpdateReg;
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BRegion *clipToPicture;
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bool clipToPictureInverse;
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@ -164,15 +128,13 @@ protected:
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uint32 _resize_mode;
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bool _hidden;
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bool _is_updating;
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// MyDriver *fDriver;
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DisplayDriver *fDriver;
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LayerData *_layerdata;
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ServerCursor *_cursor;
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DisplayDriver* fDriver;
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RGBColor fBackColor;
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RootLayer* fRootLayer;
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};
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#endif
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/*
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@log
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* added a new member, BPoint _boundsLeftTop. Beside other uses, (DW don't forget!)it will be needed in redraw code.
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* _flags is now declared as uint32
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*/
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